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    • 专利摘要:
    The invention relates to a control module (100) for controlling the thickness (E) of a layer (N) of flax stems for a scams device, which control module (100) comprises: a first control device (110) comprising: - a first drive means (112) configured to move the layer (N) at a first speed (V1) in the direction of movement (P); - a first thickness sensor (120) for measuring a first thickness (E1) of the layer (N); - a first control device (130), connected to the first drive means (112) and to the first thickness sensor (120), for controlling the first speed (V1) of the aforementioned first drive means (112) as a function of the first measured thickness (E1), of a first thickness setting value (CE1), of a first value of the displacement speed downstream of the layer (N) corresponding to a displacement speed of the layer of fibrous flax stalks downstream of the first thickness sensor (120) such that the thickness of the fibrous flax stems is controlled at the output of the control module.
    公开号:BE1025956B1
    申请号:E2019/5045
    申请日:2019-01-25
    公开日:2019-08-27
    发明作者:Rik Depoortere；Pascal Perche；Jérome LEUDET
    申请人:N.V. Depoortere；Elec 3P Bvba；
    IPC主号:
    专利说明:

    Control module for controlling the thickness of a flax layer for a crank installation.
    BACKGROUND OF THE INVENTION
    The present invention relates to the domain of scams of plant vegetable stems, in particular flax stems.
    The aim of cranking flax stems is to extract the fibrous part of the stems of the plant, or the flax fibers, and remove the woody parts and shives.
    For this purpose, a scrambling installation is usually used which generally, viewed successively according to the direction of movement of the flax layer in the scrambling installation, comprises a roll-out station of bales of flax stems and a roll-up station of bales of flax fibers. There is an extraction station between the roll-out and the roll-up station that allows the wood fibers to be extracted from the plant. It is generally a mechanical extraction of the fibers that is carried out by threshing the stems to extract the wood. The extraction station typically comprises a vomit and scum module.
    The bales of flax stalks are fed into the rollout station one by one where they are rolled out and laid flat to form the flax layer. The flax layer is moved according to the direction of movement by means of a set of belts and rolls.
    BE2019 / 5045
    Generally, operators stand next to the flax bale to ensure that the bale rolls out correctly. In addition, they manually check the thickness of the layer to ensure a correct scrubbing process.
    Checking the thickness of the flax layer is particularly important because too limited or too great a thickness, or a non-homogeneous thickness, can in certain cases lead to a clogging of the scrubbing installation, or result in excessive or insufficient scoring, in all irregular cases, or even reduce the efficiency of the scrubbing installation.
    Object and summary of the invention
    A first object of the present invention is to propose a control module for controlling the thickness of a layer of fibrous stems for a scrambling installation that allows to automatically control and control the thickness of the layer of fibrous stems passing through the scrambling installation.
    To this end, the invention is based on a module for controlling the thickness of a layer of fibrous stems for a scrambling installation, the control module comprising:
    - a table with a longitudinal direction extending between an upstream portion and a downstream portion, the layer of fibrous stems intended to move on said table from the upstream portion to the downstream portion, according to a direction of movement parallel to the longitudinal direction of the table;
    BE2019 / 5045
    - at least a first control device comprising:
    a first drive means configured to move the layer of fibrous stems in the direction of movement, wherein the first drive means is driven at a first speed;
    a first thickness sensor for measuring a first thickness of the layer of fibrous stems, the first thickness meter being located downstream of the first driving means;
    a first control device, connected to the first drive means and to the first thickness sensor, for controlling the first speed of said first drive means in function of the first measured thickness, a first set value of the thickness and a first value for the displacement speed downstream of the layer of fibrous stems, corresponding to a speed of movement of the layer of fibrous stems downstream of the first thickness sensor so that the thickness of the layer of fibrous stems at the output of the control module is controlled;
    It goes without saying that the control module can be adapted to an existing scam installation. The module can also be located at several places in the scam installation. The control module is preferably located between the roll-out station of bales of flax stems and the distributor, which serves to significantly increase the speed of movement of the layer of fibrous stems in the scams installation.
    BE2019 / 5045
    Without departing from the scope of the present invention, multiple control modules can be provided within the same scam installation.
    The first speed of the first drive means is preferably a linear speed directed in the direction of movement of the layer. It preferably relates to the speed at which the first drive means drives the layer.
    The control module according to the invention thus makes it possible to control the thickness of the layer of fibrous stems, at the output of the aforementioned control module, more particularly as a function of the first set value of the thickness, so that the thickness of the layer of fibrous stems is constant at the output of the first control device and substantially equal to the first setting value of the thickness.
    This first set value of the thickness can be a value that is manually selected by an operator. The first set value of the thickness can also be calculated automatically, for example on the basis of one or more load values of mechanical equipment of the scrubbing installation. Mechanical equipment means in particular the drive motors of drums, grooved cylinders, fiber combs that form part of the vomit or scum modules.
    It is obvious that the control devices may comprise several control modules that are located one behind the other, one after the other, depending on the precision and the progressiveness of the desired control.
    BE2019 / 5045
    Furthermore, the first control device is preferably located above the table. Still preferably, the table is supported by a frame. Advantageously, a suction device is provided above the first control device, in order to extract the dust produced during the movement of the layer of fibrous stems.
    As explained in the introduction, viewed in length, the thickness of the layer of fibrous stems from the flat-rolled bale of flax stalks is generally not constant.
    In addition, the thickness of the layer of fibrous stems is sometimes inappropriate to the operating conditions of the machine. The thickness may be too small or, on the contrary, too large, resulting in the presence of holes or plugs.
    The variations in thickness of the layer, viewed in length, may be due to the circumstances in which the flax stems are harvested or to differences in the stem shapes. The control module according to the invention serves to make the thickness of the layer of fibrous stems moving in the scrambling installation homogeneous and to adjust this thickness so that it reaches a desired, preferably optimum, value, which in certain cases may depend on the operating conditions of the scam installation.
    In the case where the first thickness sensor detects that the thickness of the layer of fibrous stems differs from the first setting value of the thickness, the first speed of the first drive means is changed taking into account the first speed of movement downstream of the
    BE2019 / 5045 layer of fibrous stems, which can be measured, for example, at the entrance of the distributor. Advantageously, the first control device is configured to transmit a first setting value of the speed to the first drive means, the first setting value of the speed being determined based on the first measured thickness, of the first value for the downstream displacement speed and of the first thickness setting value.
    If the thickness of the layer of fibrous stems measured by the first thickness sensor, in other words the first thickness, is higher than the first set value of the thickness, the first control device is configured to control the first drive means such that it is able to control the speed of movement of the layer of fibrous stems. To that end, the first set value will be, for example, a speed that is lower than the first downstream speed.
    On the other hand, if the thickness of the layer of fibrous stems measured by the first thickness sensor, in other words the first thickness, is lower than the first set value of the thickness, the first control device is configured to control the first drive means such that it is able to the layer of fibrous stems accelerates. To that end, the first setting value will be, for example, a speed that is higher than the first downstream displacement speed.
    According to a preferred embodiment, the first speed setting value is the sum of the first downstream displacement speed and a first one
    BE2019 / 5045 correction value calculated on the basis of the first measured thickness and the first set value of the thickness.
    It goes without saying that the first correction value can be a positive or negative value. It is the result of the comparison between the first set value of the thickness and the first measured thickness.
    According to an exemplary embodiment, that first correction value is proportional to the difference between the first set value of the thickness and the first measured thickness. According to a variant, the first correction value takes into account previous measurements of the first thicknesses. It is important to smooth the thickness control of the layer of fibrous stems.
    Preferably, but not necessarily, the first control device comprises a PID controller to calculate the first correction value. The PID controller (Proportional, Integrating and Differentiating) is known and is not described in further detail here.
    The first control device is preferably located above the table. It goes without saying that the layer of fibrous stems circulates between the table and the first control device. The control device is preferably attached to the frame on which the table rests.
    According to an embodiment, the first drive means comprises at least one toothed disc with a pivot axis that is perpendicular to the longitudinal direction. The toothed
    BE2019 / 5045 disk is preferably driven by a motor, which is preferably electric.
    According to another embodiment, the first driving means comprises at least one picot band, a part of which runs parallel to a horizontal surface of the table, which is driven in the direction of movement. It goes without saying that the layer of fibrous stems is displaced by the movement of the part in the direction of movement.
    The first thickness sensor preferably comprises a sensor that comes into contact with the top of the layer of fibrous stems.
    It goes without saying that the first thickness is measured locally at the location of the first thickness sensor.
    The first value of the speed of movement downstream of the layer is preferably but not necessarily measured downstream of the first thickness sensor. In particular, if the first control device is the only control device or even the control device that is most downstream of the control module, the first value of the displacement speed is obtained by a measuring device that measures the speed of the layer downstream of the control module.
    As explained below, if the control module comprises a second control device located downstream of the first control device, the first displacement value downstream of the layer is preferably
    BE2019 / 5045 corresponds to a speed value supplied by the second control device. This speed value can be measured or even determined by other means, for example in relation to a set value.
    According to a preferred aspect of the invention, the control module furthermore comprises at least a second control device which is located downstream of the first control device and comprises the following:
    - a second drive means, configured to move the layer of fibrous stems in the direction of movement, wherein the second drive means is driven at a second speed;
    - a second thickness sensor for measuring a second thickness of the layer of fibrous stems, the second thickness sensor being located downstream of the second driving means;
    - a second control device connected to the second drive means and the second thickness sensor to control the second speed as a function of the second measured thickness, a second set value of the thickness and a second value of the speed of movement downstream of the layer of fibrous stems which corresponds to a speed of movement of the layer of fibrous stems downstream of the second thickness sensor; and the first value of the downstream movement speed corresponding to the second speed.
    It is therefore obvious that the second control device is similar to the first control device.
    BE2019 / 5045
    The second value of the downstream moving speed may, for example, correspond to the moving speed of the layer of fibrous stems at the distributor's entrance.
    It goes without saying that the first speed is determined on the basis of the first set value of the thickness, the first measured thickness and the second speed.
    The second speed of the second drive means is preferably a linear speed, oriented according to the direction of movement of the layer. It is preferably about the speed at which the second drive means drives the layer.
    An advantage of having two drive means is that the thickness of the layer of fibrous stems can be controlled more precisely, in other words, the control or correction of the thickness of the layer of fibrous stems can be gradually controlled by the two control devices.
    The second setting value of the thickness is preferably a function of the first setting value of the thickness. The second setting value of the thickness may, for example, be proportional to the first setting value of the thickness, wherein the proportionality coefficient may be a function of the degree of difficulty in scoring the flax.
    The advantage is that the thickness of the stems can be adjusted gradually, in two distances.
    of the layer of fibrous phases, over a larger In this way the
    BE2019 / 5045 quality of the layer of fibrous stems improved before it enters the distributor.
    According to another variant, the second setting value of the thickness may be equal to the first setting value of the thickness.
    The second value of the moving speed downstream of the layer is preferably, but not necessarily, downstream of the second thickness sensor. In particular, if the second control device is the control device most downstream of the control module, the second value of the downstream displacement speed is obtained by a measuring device that measures the speed of the layer downstream of the control module.
    As explained below, if the control module comprises a third control device located downstream of the second control device, the second displacement value downstream of the layer preferably corresponds to a speed value supplied by the third control device. This speed value can be measured or even determined by other means, for example in relation to a set value.
    According to an advantageous aspect of the invention, the control module furthermore comprises at least a third control device which is located downstream of the second control device and comprises the following:
    - a third driving means, configured around the layer of fibrous stems in the direction of movement
    BE2019 / 5045, wherein the third drive means is driven at a third speed;
    - a third thickness sensor for measuring a third thickness of the layer of fibrous stems, the third thickness sensor being located downstream of the third driving means;
    - a third control device connected to the third drive means and the third thickness sensor to control the third speed as a function of the third measured thickness, a third set value of the thickness and a third value of the speed of movement downstream of the layer of fibrous stems which corresponds to a speed of movement of the layer of fibrous stems downstream of the third thickness sensor; and the second value of the downstream movement speed corresponds to the third speed.
    It is therefore obvious that the third control device is similar to the first or second control device.
    The third value of the downstream displacement speed will, for example, correspond to the displacement speed of the layer of fibrous stems at the entrance of the distributor.
    It goes without saying that the second speed is determined on the basis of the second setting value of the thickness, the second measured thickness and the third speed.
    The third speed of the third drive means is preferably a linear speed directed according to the
    BE2019 / 5045 direction of movement of the layer. It is preferably about the speed at which the third drive means drives the layer.
    An advantage of having three drive means is that the thickness of the layer of fibrous stems can be controlled more precisely, in other words, the control or correction of the thickness of the layer of fibrous stems can be gradually controlled by the three drive means.
    Advantageously, the third set value of the thickness is a function of the first and / or the second set value of the thickness. The third setting value of the thickness may, for example, be proportional to the second setting value of the thickness, wherein the proportionality coefficient may be a function of the degree of difficulty in scoring the flax.
    An advantage is that the thickness of the layer of fibrous stems can be adjusted gradually and in three phases over a greater distance. In this way the quality of the layer of fibrous stems is improved before it enters the distributor.
    According to another variant, the third setting value of the thickness may be equal to the second setting value of the thickness.
    The third value of the moving speed downstream of the layer is preferably, but not necessarily, measured downstream of the third thickness sensor. In particular, if the third control device is the control device
    BE2019 / 5045, which is located most downstream of the control module, the third value of the downstream displacement speed is obtained by a measuring device which measures the speed of the layer downstream of the control module.
    Without departing from the scope of the present invention, an additional number of control devices could be provided depending on the precision and progressiveness of the desired control.
    The invention furthermore relies on a scam installation comprising, successively, viewed in the direction of movement of the layer of fibrous stems:
    a rollout station from a bale flax the low fibrous stems to form existing from fibrous stems perpendicular focused on the
    direction of movement;
    - an extraction station to extract the fibers from the fibrous stems;
    - at least one control module according to the invention, wherein the control module, viewed in the longitudinal direction, is located between the roll-out station and the extraction station;
    - a measuring device for measuring the speed of the layer downstream of the control module.
    The scam installation preferably comprises a distributor and the control module according to the invention is located between the rolling station and the distributor. The distributor is a module, which is otherwise known, which serves to significantly increase the speed of the layer of fibrous stems. Generally, the distributor has the effect of
    BE2019 / 5045 moving speed of the layer of fibrous stems is increased by a coefficient ranging from four to eight.
    As is known, the extraction station also has the function of cleaning the fibers of the fibrous stems.
    Advantageously, the roll-out station comprises a drive motor whose rotational speed is controlled such that it corresponds to the first speed. In other words, the bale with fibrous stems is unrolled essentially at the same speed as the first speed of the first drive means of the control module.
    The measuring device is preferably, but not necessarily, configured to measure the velocity of the layer at the entrance of the distributor. The measuring device can also be located partially downstream of the control module.
    It goes without saying that the control module can measure and deliver:
    - the first speed of movement downstream of the first control device if the control module is only equipped with the first control device;
    - the second speed of movement downstream of the second control device if the control module is only equipped with the first and second control device;
    - the third speed of movement downstream of the first control device if the control module is equipped with the first, second and third control device.
    In other words, the measuring device supplies the first downstream speed to the first
    BE2019 / 5045 control device if the control module is only equipped with the first control device.
    The measuring device supplies the second downstream speed of movement to the second control device if the control module is only equipped with the first control device and the second control device.
    The measuring device teaches the third moving speed downstream to the third control device if the control module is equipped with the first, second and third control device.
    In general, the measuring device provides the downstream displacement speed to the control device of the control device that is located most downstream of the control module.
    Preferably, the scrubbing installation according to the invention furthermore preferably comprises a distributor which is located upstream of the extraction station and the control module is located between the rolling-out station and the distributor.
    Brief description of the drawings
    With the insight to make the invention clearer, an embodiment is described below, without any limiting character, with reference to the accompanying drawings, in which:
    Figure 1 is a schematic side view of a flax scams installation according to the invention, with a control module according to the present invention;
    BE2019 / 5045 Figure 2 is a schematic representation of the control module in Figure 1; and Figure 3 is a function diagram of the control module in Figure 2.
    Detailed description of the invention
    Figure 1 shows schematically and in side view an embodiment according to the invention of a scams installation 10 for fibrous stems. In this example, the fibrous stems are flax stems. Without departing from the scope of the present invention, scams installation 10 could be used for other types of fibrous stems, such as, for example, hemp stems.
    As explained below, a layer N of flax stalks T passes through the scrubbing installation 10 and moves in the direction of movement F. The terms upstream and downstream, which are used below, will be seen in the direction of movement F.
    As is known, the scam installation 10 first and foremost comprises upstream a roll-out station 12 of a bale B flax stalks T to form the layer N flax stems T consisting of flax stems T perpendicular to the direction of movement F of the layer.
    In this example without any limiting character, the roll-out station 12 comprises a conveyor belt 14 which is driven by a motor 16 at a linear speed Vo. Like later
    BE2019 / 5045 will be explained in more detail, the motor 16 can be driven to change the speed Vo. It goes without saying that the speed Vo is the linear speed of the flax layer that comes out of the bale B.
    Of course, and without departing from the scope of the present invention, other drive means could be provided for rotating the bale B.
    As is known, the layer N flax stems T passes through a divider 18 which has the function of significantly increasing the speed of movement of the layer N flax stems T. The divider 18 typically comprises a series of discs 20, illustrated in Figure 2, with increasing rotational speeds to gradually accelerate the layer N flax stalks T.
    Downstream of the distributor 18, the scrubbing installation 10 comprises an extraction station 30 for extracting the fibers from the flax stems. As is known, the extraction station is composed of one or more vomit and scum modules.
    The long fibers coming out of the extraction station 30 are then rolled up to form a bale of fibers B ', called flax fiber bale, this rolling up being done in a rolling-up device 32, which is otherwise known.
    It goes without saying that as soon as the bale B flax stalks is fully unrolled, a second bale B flax stalks T is brought to the unrolling station 12. Similarly, the bale of flax fibers B ', once formed, is guided out of the winding device, thereby making room to form another bale of flax fibers.
    BE2019 / 5045
    In accordance with the invention, the scam installation furthermore comprises a control module 100 which has the function of controlling the thickness E of the layer N. It is known that, considering its length, the thickness of the layer is not constant. This is because the layer may exhibit fluctuations, which may be due to the fact that the thickness of the swath is not homogeneous during harvesting in the field. Moreover, the thickness of the layer, coming from the bale B, does not necessarily correspond to the optimum thickness that the layer must have in order to maximize or optimize the efficiency and quality of the scrambling process.
    As set forth above, the purpose of the control module 100 according to the invention is to control the thickness of the layer N so that it has a substantially constant thickness that is adapted to the desired operation of the scrubbing installation.
    Viewed according to the direction of movement F of the layer N flax stalks T, the control module 100 is located between the roll-out station 12 and the extraction station 30. More specifically, in this example the control module 100 is located between the roll-out station 12 and the distributor 18.
    In the continuation of the explanation, Ee, the thickness of the layer N at the entrance of the control module 100 and Es, the thickness of the layer N at the output of the control module 100 can be seen.
    In accordance with the invention, the control module 100 comprises a table 102 with a longitudinal direction L extending between an upstream portion 104 and a downstream
    BE2019 / 5045 section 106. As can be seen in Figure 2, the layer N flax stems T is intended to move on the aforementioned table 102 from the upstream section 104 to the downstream section 106, in the direction of movement F which is parallel to the longitudinal direction L of the table 102.
    This table 102 can be supported by a frame (not shown here).
    The control module furthermore comprises a first control device 110 which is located above the table
    102 in the vicinity of the upstream portion 104.
    The first control device
    110 includes a first drive means 112 configured to move the layer N flax stalks in the direction of movement
    F, wherein the first drive means 112 is driven at a first speed
    Vi. In this example, the first speed Vi is a linear speed directed in the direction of movement
    F. As you can see, the first speed comes
    Vi corresponds to the linear movement speed of the layer
    T at the level of the first drive means
    N flax stalks
    112.
    In this example, illustrated in Figure 3, the first drive means 112 comprises a picot belt 113, a portion 113a of which is parallel to a horizontal plane P of the table 102. It goes without saying that the portion 113a is driven in the direction of movement F against the first linear speed Vi.
    BE2019 / 5045
    The picot tire 113 is mounted on two drive cylinders 115, 117 which are driven by a first electric motor 119.
    It can, incidentally, be determined that the first control device 110 is located above the table 102.
    The first control device 110, incidentally, comprises a first thickness sensor 120 with a sensor 122 for measuring a first thickness Ei of the layer N flax stalks T. It goes without saying that this measurement of the first thickness Ei is carried out locally on the layer N flax stalks T.
    It is also obvious that the thickness sensor 120 is downstream of the first drive means 112.
    The control module 100 also comprises a first control device 130, which is connected to the first drive means 112 and to the first thickness sensor 120 for controlling the first speed Vi of the first drive means 112.
    In this exemplary embodiment, the speed Vo of the motor 16 of the rolling-out station 14 is otherwise controlled such that it corresponds to the first speed Vi of the first drive means 112, and this to ensure a uniform displacement of the part of the flax layer that flows upstream of the control module 100.
    The control module 100 according to the invention furthermore comprises a second control device 110 'which is located downstream of the first control device 110.
    BE2019 / 5045
    The second control device 110 comprises a second drive means 112 'which is configured to move the layer N flax stalks T in the direction of movement F, the second drive means being driven at a second speed V2.
    In this example, the second speed V2 of the second drive means 112 'is a linear speed directed in the direction of movement of the layer. It is preferably about the speed at which the second drive means drives the layer.
    In this example, the second drive means 112 'comprises a toothed disk 113' whose axis of rotation A is perpendicular to the longitudinal direction L. The toothed disk 113 'is rotatably driven by a motor 119'. The second speed V2 thus represents the tangential speed of the toothed disk 113 '.
    Without departing from the scope of the present invention, the toothed disk could be replaced with a picot tire such as that of the first drive means.
    The second control device 110 'incidentally comprises a second thickness sensor 120' for measuring a second thickness E2 of the layer N flax stalks T. The second thickness sensor 120 'is identical to the first thickness sensor 120 in this example. The second thickness sensor 120 'is downstream of the second drive means 112'.
    BE2019 / 5045
    The second control device 110 'incidentally comprises a second control device 130' which is connected to the second drive means 112 'and to the second thickness sensor 120'.
    In this example, the control module 100 furthermore comprises a third control device 110 '' which is located downstream of the second control device 110 'about the second speed V2 of the second drive means 112'.
    The third control device 110 '' comprises a third drive means 112 '' which in this example is similar to the first drive means 112, wherein the third drive means 112 '' is configured to move the layer N fabric T in the direction of movement F, the third drive means 112 '' is driven at a third speed V3.
    In this example, the third speed V3 of the third drive means 112 '' is a linear speed directed according to the direction of movement of the layer. It preferably relates to the speed at which the third drive means drives the layer N.
    The third control device 110 '' incidentally comprises a third thickness sensor 120 '' for measuring a third thickness E3 of the layer N fibrous stems T, the third thickness sensor 120 '' having a sensor similar to the first and second thickness sensor 120 and 120 '. The third thickness sensor 120 '' is located downstream of the third drive means
    112 "
    BE2019 / 5045
    The third control device 110 '', incidentally, comprises a third control device 130 '' which is connected to the third drive means 112 '' and to the third thickness sensor 120 '' to control the third speed V3 of the third drive means 112 ''. As explained above, the first control device 130 is configured to control the first speed Vi of the first drive means 112, this control taking place in function of the first measured thickness Ei, a first set value of the thickness CEi and a first value of the displacement speed downstream of the layer N flax T which is measured downstream of the first thickness sensor 120, this first value of the displacement speed downstream in this case corresponding to the second speed V2 of the second drive means.
    More specifically, the first control device 130 is configured to transmit a first set value of the speed CV1 to the first drive means 112, the aforementioned first set value of the speed Vi being determined on the basis of the first measured thickness E1 of the second speed V2 of the second drive means and the first set value of the thickness CEi. In this example, the first set value of the speed CVi is the sum of the second speed V2 and a first correction value Xi that is calculated on the basis of the first measured thickness Ei of the first thickness sensor CEi. This first correction value Xi can be positive or negative.
    To this end, the first control device 130 in this example comprises a PID controller (proportional, integrating and
    BE2019 / 5045 differentiating) 131 to calculate the first correction value Xi.
    In this example, the first correction value Xi is proportional to the difference between the first set value of the thickness
    CEi and the first measured thickness Ei.
    So it speaks for itself herself that the thickness of the low N flax stalks between the first control device 110 and the second control device 110 ' essentially the same is On the first set value of the thickness CEi. Let we look now to the function of the second
    control device 110 '.
    The second control device 130 'of the second control device
    110 'serves to control the second speed V2 as a function of the second thickness measured by the second thickness sensor 120', a second set value of the thickness CE2, and a second value of the displacement speed downstream of the layer of flax stems measured downstream example of the second thickness sensor 120 '. In this the second value of the downstream movement speed corresponds to the third speed V3 of the third drive means.
    Like the first control device 130, the second control device 130 'is configured to send a second set value of the speed CV2 to the second drive means 112', the aforementioned second set value of the speed CV2 being determined on the basis of the second measured thickness E2, from the third speed of it
    BE2019 / 5045 third drive means, and of the second set value of the thickness CE2.
    Again, the second set value of the speed CV2 is the sum of the third speed of the third drive means and of a second correction value X2 that is calculated on the basis of the second measured thickness E2 and of the second set value of the thickness CE2. Again, the second control device 130 'in this example comprises a PID controller 131' for calculating the second correction value X2.
    In this example, the second set value of the thickness CE2 is a function of the first set value of the thickness CE1.
    More specifically, in the illustrated example, the first measured thickness Ei of the layer is too large so that the control module will reduce the thickness of the layer so that its thickness at the output Es of the control module is smaller than the thickness at the input E e of the control module.
    The second set value of the thickness CE2 is proportional to the first set value of the thickness CE1, the proportionality coefficient being strictly less than 1, so that the thickness of the layer N between the second and third control device 110 ', 110' 'is substantially equal to the second set value of the thickness CE2, smaller than the thickness of the layer between the first and second control device 110, 110 '. As for the third control device 110 '', the third control device 130 'is configured to control the third speed V3 as a function of the third measured thickness E3, a third set value of the thickness CE3 and' a third value of the measured moving speed downstream V4 from the layer of flax stalks and downstream from the third thickness sensor.
    BE2019 / 5045
    In this example, the third value of the moving speed downstream V4 is also a linear speed according to the moving direction F of the layer, with
    other words the tangential speed from the role upstream 20a from the distributor 18. Just like the first steering device 130 is the third steering system 130 '' configured to a third set value of the speed CV3 by send On it third drive means 112 '', wherein the the aforementioned third
    set value of the speed CV3 is determined on the basis of the third measured thickness E3, a third value of the displacement speed downstream V4, and the third set value of the thickness CE3.
    Here too, the third set value of the speed CV3 is the sum of the third value of the downstream speed V4 and a third correction value X3 which is calculated on the basis of the third measured thickness E3 and the third set value of the thickness CE3. Here again the third control device 130 in this example comprises a PID controller 131 for calculating the third correction value X3.
    In this example, the second set value of the thickness CE3 is a function of the first set value of the thickness CE2.
    It goes without saying that the thickness of the layer of flax stalks at the output of the control module 100 essentially corresponds to the third setting value of the thickness CE3.
    The third set value of the thickness CE3 is proportional to the second set value of the thickness CE2, the proportionality coefficient being strictly less than 1, so that the
    BE2019 / 5045 thickness of the layer N downstream of the third control device is smaller than the thickness of the layer between the second and third control device 110 ', 110' '.
    In addition to making the thickness of the layer homogeneous, the thickness of the layer is also gradually reduced in three times.
    权利要求:
    Claims (17)
    [1]
    Conclusions.
    A control module (100) for controlling the thickness (E) of a layer (N) of fibrous stems (T), such as flax stems, for a scams installation (10), which control module (100) comprises:
    - A table (102) with a longitudinal direction (L) extending between an upstream portion (104) and a downstream portion (106), wherein the layer (N) of fibrous stems (T) is intended to move on the affected table (102) from the upstream portion (104) to the downstream portion (106), according to a direction of movement (F) that is parallel to the longitudinal direction (L) of the table (102);
    - At least one first control device (110) comprising:
    a first drive means (112) configured to move the layer (N) of fibrous stems (T) in the direction of movement (P) wherein the first drive means (112) is driven at a first speed (Vi);
    a first thickness sensor (120) for measuring a first thickness (Ei) of the layer (N) of fibrous stems (T), the first thickness sensor (120) being downstream of the first driving means (112);
    a first control device (130) connected to the first drive means (112) and to the first thickness sensor (120) to control the first speed (Vi) of said first drive means (112) as a function of the first measured thickness (Ei ), of a first set value of the thickness (Ce'i), and of a first value of the speed of movement downstream of the layer (N) of fibrous
    BE2019 / 5045 fiber stems (T), displacement speed downstream of the thickness (E s) of the control module output.
    corresponding to one of the layer of fibrous stems first thickness sensor (120), such that the layer of fibrous stems at
    [2]
    2.
    [3]
    3.
    [4]
    4.
    [5]
    5.
    [6]
    6.
    A control module (100) according to claim 1, wherein the first control device (130) is configured to transmit a speed first setpoint setting means speed first setpoint value to the first (CVi) (112), (CVi) of the first measured thickness (Ei), of the thickness displacement value downstream determined first and of claim 2, thereby based on value of the first
    Control module (100) according to the first set value of the speed (CVi) the first displacement speed downstream calculated on the basis of the first set value which is the sum of a characteristic and of the first correction value (Xi), measured first thickness (Ei) and of the thickness (CEi).
    Control module (100) according to claim that the first control device (130) comprises for calculating the (Xi).
    Control module claims arranged above the table (102).
    (100) according to which the first one of the
    3, characterized in that a PID controller (131) is the first correction value of the previous control device (110)
    Control module claims, a toothed lengthwise direction.
    one of the foregoing (100) according to which the first drive means comprises at least a disc whose pivot axis is perpendicular to
    BE2019 / 5045
    [7]
    The control module (100) of any one of claims 1 to 6, wherein the first drive means (112) comprises at least one pin band (113), a portion of which (113a) is parallel to a horizontal plane (P) of the table (102) ), wherein it is driven according to the displacement speed (F).
    [8]
    Control module (100) according to one of the preceding claims, characterized in that it comprises at least one second control device (110 '), which is located downstream of the first control device (110) and comprising:
    - a second drive means (112 ') configured to move the layer (N) fibrous stems (T) in the direction of movement (F), wherein the second drive means is driven at a second speed (V2);
    - a second thickness sensor (120 ') to measure a second thickness (E2) of the layer (N) of fibrous stems (T), the second thickness sensor being located downstream of the second drive means (112');
    - a second control device (130 ') connected to the second drive means (112') and to the second thickness sensor (120), to control the second speed (V2) as a function of the second measured thickness (E2) of a second thickness value setting (CE2), and a second value of the moving speed downstream of the layer (N) of fibrous stems (T), corresponding to a moving speed of the layer of fibrous stems downstream of the second thickness sensor (120 '); and that the first value of the downstream movement speed corresponds to the second speed (V2).
    BE2019 / 5045
    [9]
    The control module (100) according to claim 8, wherein the second setting value of the thickness (CE2) is dependent on the first setting value of the thickness (CEi).
    [10]
    Control module (100) according to one of claims 8 or 9, characterized in that it comprises at least one third control device (110 ''), which is located downstream of the second control device (110 ') and comprising:
    a third drive means (112 '') configured to move the layer (N) of fibrous stems (T) in the direction of movement (F), wherein the third drive means (112) is driven at a third speed (V3);
    a third thickness sensor (120 '') for measuring a third thickness (E3) of the layer (N) of fibrous stems (T), the third thickness sensor (120 '') moving downstream of the third drive means (112 '' );
    a third control device (130 '') connected to the third drive means (112 '') and to the third thickness sensor (120 '') to control the third speed (V3), depending on the third measured thickness (E3), of a third setting value of the thickness (CE3), and of a third displacement speed (V4) downstream of the layer of fibrous stems corresponding to a displacement speed of the layer of fibrous stems downstream of the third thickness sensor;
    and that the second value of the downstream speed corresponds to the third speed (V3).
    [11]
    The control module (100) according to claim 10, wherein the third setting value of the thickness depends on the first and / or second setting value of the thickness.
    [12]
    A scrubbing installation (10) of a layer (N) of fibrous stems (T) comprising successively, seen in the
    BE2019 / 5045 direction of movement (F) of the layer (N) fibrous stems (T):
    - a roll-out station (12) of a bale (B) of fibrous stems (T) to form the layer of fibrous stems (T) consisting of fibrous stems (T) perpendicular to the direction of movement (F);
    - an extraction station to extract the fibers from the fibrous stems, characterized in that it furthermore comprises:
    - at least one control module (100) according to one of the preceding claims; wherein the control module, viewed in the direction of movement (F), is located between the roll-out station (12) and the extraction station (30);
    - a measuring device for measuring the speed of the layer (N) of fibrous stems (T) downstream of the control module.
    [13]
    Installation according to claim 12, characterized in that the measuring device delivers the first displacement speed downstream to the first control device when the control module is only equipped with the first control device (110).
    [14]
    Installation according to claim 12, comprising a control module according to claims 8 or 9, characterized in that the measuring device supplies the second moving speed downstream to the second control device when the control module is only equipped with the first control device (110) and with the second control device ( 110 ').
    [15]
    Installation according to claim 12, comprising a control module according to claims 10 or 11, characterized in that the measuring device is the third
    BE2019 / 5045 provides downstream displacement speed to the third control device when the control module is equipped with the first, second and third control devices (110, 110 ',
    110 ").
    [16]
    Installation according to one of claims 12 to 15, wherein the roll-out station (12) comprises a drive motor whose speed (Vo) is controlled such that it corresponds to the first speed (Vi).
    [17]
    Plant according to one of claims 12 to 16, characterized in that it furthermore comprises a distributor located upstream of the extraction station, and wherein the control module is located between the rolling station and
    15 the distributor.
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    同族专利:
    公开号 | 公开日
    FR3077304B1|2021-05-07|
    FR3077304A1|2019-08-02|
    NL1043132B1|2019-07-31|
    BE1025956A1|2019-08-21|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE712451C|1940-03-17|1941-10-20|Igo Etrich|Machine for extracting the fibers from bast fiber, especially flax and hemp stalks|
    DE746500C|1942-04-01|1944-06-21|Jerome Coussement|Plant for obtaining spinnable, in particular cotonizable fibers from bast fiber stalks|
    FR2404685B1|1977-09-30|1980-10-17|Inst Textile De France|
    FR2629477B1|1988-03-30|1991-09-13|Robaeys Freres Sa Van|METHOD AND DEVICE FOR DRAWING A TABLECLOTH TO REDUCE ITS LINEAR DENSITY|
    FR2765895B1|1997-07-09|1999-08-20|Inst Tech Du Lin Itl|DEVICE FOR DIVIDING OR MULTIPLYING THE TABLE THICKNESS OF MISCELLANEOUS PLANT PRODUCTS OF A LINK OR OTHER TYPE|WO2021229484A1|2020-05-14|2021-11-18|Nuiche S.R.L.|Scutching machine and method|
    法律状态:
    2019-10-14| FG| Patent granted|Effective date: 20190827 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1850617|2018-01-26|
    FR1850617A|FR3077304B1|2018-01-26|2018-01-26|MODULE FOR REGULATING THE THICKNESS OF A LINEN TABLECLOTH FOR A TEILLAGE INSTALLATION|
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