EP3717189B1 - Device and method for selectively shear a support element, preferably a continuous strip - Google Patents

Device and method for selectively shear a support element, preferably a continuous strip Download PDF

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Publication number
EP3717189B1
EP3717189B1 EP18829997.8A EP18829997A EP3717189B1 EP 3717189 B1 EP3717189 B1 EP 3717189B1 EP 18829997 A EP18829997 A EP 18829997A EP 3717189 B1 EP3717189 B1 EP 3717189B1
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EP
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Prior art keywords
shearing
support element
slider
operating
operating condition
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EP18829997.8A
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German (de)
English (en)
French (fr)
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EP3717189A1 (en
Inventor
Gianluca BRILLANTI VENTURA
Cristian BETTI
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IMA Industria Macchine Automatiche SpA
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IMA Industria Macchine Automatiche SpA
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Priority to SI201830875T priority Critical patent/SI3717189T1/sl
Publication of EP3717189A1 publication Critical patent/EP3717189A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • B26D5/12—Fluid-pressure means

Definitions

  • the field of application of the present invention is that of packaging small-size products, for example products in the pharmaceutical sector, which are in the form of tablets, pills, capsules, suppositories, or other, in the food industry, such as candies, sugared almonds, fruit drops, bonbons, or suchlike, and in the field of smoking products, such as capsules or cartridges for electronic cigarettes, or other, in which each product is preferably contained in a sealed dome-shaped cell, made on a containing support, also called a blister, which can consist, for example, of a thin sheet of aluminum.
  • the present invention concerns a shearing apparatus and method to selectively, partly or totally shear a support element, preferably a continuous strip, in order to obtain in sequence a plurality of blisters with the corresponding products inside it, and thus create a small-sized unitary section, which can be inserted into a pocket-sized container.
  • a support element preferably a continuous strip
  • the continuous strip has a width of a few tens of millimeters, so that the blisters that are obtained can be inserted into a pocket-sized container, and comprises one or more columns of cells, the number of which depends on the size of each product, in relation to the width of the continuous strip. Therefore, a shearing device is normally provided which shears the strip to divide it into single sections, each of which has a width substantially equal to that of the strip.
  • the continuous strip is the same width as the individual blisters that are obtained, it is called a "mono-row" strip.
  • a method and corresponding unit for producing packages of products contained in blisters, by selectively cutting a strip.
  • the shearing operation is performed by a shearing device, which comprises a shearing member linearly mobile in a direction perpendicular to the direction of feed of the strip, between an idle position, distanced from the strip, and two shearing positions, one final, for a total shearing, and one intermediate, for a partial shearing.
  • the shearing member is commanded by a connecting rod mechanism, which transforms the rotational movement of a rotatable shaft, selectively commanded by an electric motor, into a rectilinear movement of the shearing member.
  • the travel of the latter can be complete, when it is desired to carry out a total shearing of the strip with the blisters, or partial, when only a partial shearing of the strip is desired, for example if a detection member detects a possible anomaly in the strip in correspondence with the position of one or more blisters to be sheared.
  • the defective blister is easily distinguished from the "good" blisters and prevents that, inadvertently, a defective blister can in any case be fed toward the subsequent operations and/or inserted in a container to be sent for packaging.
  • the electric motor commands a complete rotation of the rotatable shaft
  • the same electric motor commands only a partial rotation of the rotatable shaft, for example of 325°, thus generating a shorter travel of the shearing member.
  • this known device has the disadvantage of being rather bulky and cannot be adapted, even by duplicating it, to make independent cuts either on a very wide strip, to divide it into several parallel strips, from each of which the specific sections each containing a specific number of blisters can be obtained, or on several strips located adjacent to each other.
  • known solutions generally do not allow to perform a partial travel only of one shearing member, corresponding to the blister to be discarded; therefore, when this occurs, the blisters of both rows are discarded, therefore also a blister which should not have been discarded. This leads to a reduction in the efficiency and productivity of known shearing machines.
  • a first purpose of the present invention is therefore to obtain a shearing apparatus, and to perfect the corresponding method, to selectively shear at least one support element, preferably a continuous strip, to form blisters, which allow to shear the support element in a simple and reliable way, also guaranteeing high productivity, both in the longitudinal direction, that is, in the direction of the length, and also in the transverse direction, that is in the direction of the width, in order to simultaneously obtain a plurality of single sections, or blisters, in each of which a certain number of products inserted in the respective cells can be contained.
  • a main purpose of the invention is, in the case of a two-row or in general a multi-row strip, to allow to partly shear a single blister, instead completely shearing the blister in the adjacent row, so as to allow to distinguish a defective blister without necessarily eliminating also the adjacent non-defective blister.
  • Another purpose of the present invention is to provide a shearing apparatus and to perfect the corresponding method in which it is possible to selectively and autonomously shear at least one support element, preferably a continuous strip, having a width at least double a standardized width, dividing it virtually or practically into a plurality of adjacent and parallel strips, each having a standardized width, so that from each strip it is possible to obtain the single sections, and so that each blister can be sheared independently of the adjacent blister, to independently obtain a complete or partial cut.
  • at least one support element preferably a continuous strip, having a width at least double a standardized width, dividing it virtually or practically into a plurality of adjacent and parallel strips, each having a standardized width, so that from each strip it is possible to obtain the single sections, and so that each blister can be sheared independently of the adjacent blister, to independently obtain a complete or partial cut.
  • Another purpose of the invention is to provide such a type of independent cut between two or more adjacent blisters using a simple device which can also be applied to already existing shearing apparatuses, and which does not require significant modifications of the structures connected to the shearing apparatus, even in the case of apparatuses equipped with traditional motorizations that do not allow modification of their movement travel.
  • the Applicant has devised, tested and embodied the present invention to overcome the shortcomings of the state of the art and to obtain these and other purposes and advantages.
  • an apparatus as defined in claim 1 to selectively shear at least a support element, preferably a continuous strip, even more preferably provided with cells already sealed to form a plurality of blisters, mobile in a direction of feed.
  • the shearing apparatus comprises at least a first shearing device that is provided with a shearing member and is selectively drivable between an idle position, in which the shearing member does not interfere with the support element, and an operating shearing position, in which the shearing member at least partly interferes with the support element.
  • the shearing member is moved by driving a drive member, rotatable for example, for example an electric motor associated with a connecting rod mechanism that transforms the rotation motion into a rectilinear motion.
  • the shearing device in a known manner, defines the so-called "format" part of the machine, that is, the replaceable part based on the size of the continuous support strip, the size of the blisters, the number and the size of the cells, and so on, while the rotary drive member forms a distinct, unified and normally non-replaceable part of the shearing apparatus.
  • the first shearing device also comprises actuation means configured to actuate the shearing member and selectively take it into a first operating condition, in which the same shearing member, when it is in the operating shearing position, totally interferes with the support element, shearing it completely and thus achieving at least a unitary section of the latter, which detaches from the remaining part of it, also called lateral off-cut, or into a second operating condition, in which the same shearing member, when it is in the operating shearing position, only partly interferes with the support element, so that the corresponding unitary section, not completed, remains attached to the lateral off-cut of the latter, wherein, in the two operating conditions of the shearing member, the position of the shearing member with respect to the slider is different, while the travel of the slider is the same, so that the two operating conditions of the shearing member are obtained with the same travel of the drive member, that is, without modifying the travel of the drive member.
  • actuation means configured to actuate the shea
  • the selective drive of the actuation means allows to move the starting and finishing points of the travel of the shearing member so that, given the same travel of the rotating drive member, and therefore of the shearing member itself, either a total cutting of the strip is obtained, when the starting and finishing points are in a first position, or a partial shearing is obtained, when the starting and finishing points are in a second position.
  • the present invention Since the actuation means are located in or are associated with the so-called "format" part apparatus, that is, that part of the apparatus that is replaceable according to the size and shape of the strip from which the blisters are obtained following shearing, the present invention has the advantage that it does not require any intervention to modify the travel of the rotary movement member, which instead is a unified part of the apparatus, and greatly simplifies the management and control of the movements. Moreover, it allows the solution of the invention to be applied also as an intervention on existing machines, even on those equipped with a conventional motorization which does not allow modification of the travel of the drive element.
  • the first shearing device is mounted on a slider mobile along a travel, in a direction perpendicular to the direction of feed of the support element, by means of the drive member, between a position distanced from the support element, which corresponds to the idle position of the shearing member, and a position of interference with the support element, which corresponds to the operating shearing position of the shearing member.
  • the actuation means comprise a command device that comprises a motion conversion mechanism configured to condition the position of the shearing member with respect to the slider so as to pass from the first operating condition to the second operating condition.
  • the motion conversion mechanism in turn comprises a piston, mobile axially along a longitudinal axis provided with cam means configured to condition the position of the shearing member with respect to the slider.
  • the mobile piston is shaped to define the cam means.
  • the cam means comprise a cam profile comprising at least a first upper support surface disposed at a first distance from the longitudinal axis and at least a second upper support surface disposed at a second distance from the same longitudinal axis, smaller than the first distance.
  • inclined planes are present between the first upper and lower support surfaces and, respectively, the second upper and lower support surfaces.
  • the shearing member comprises contact means configured to be in contact with the first support surface in the first operating condition, or with the second support surface in the second operating condition.
  • the motion conversion mechanism comprises a rotatable shaped member of the eccentric type.
  • one or more shearing devices for example two or more than two, substantially identical to the first shearing device, are associated with the first shearing device.
  • the shearing devices are adjacent to each other, with their respective longitudinal axes parallel to each other. Moreover, each of the shearing devices has a width substantially equal to the standardized width of a single unit into which the support element is divided.
  • each of the shearing devices can be motorized internally so that it can be taken, independently of the other shearing devices, into a complete shearing position or into a partial shearing position.
  • the shearing method is defined in claim 18.
  • Fig. 1 is used to describe schematically in its entirety a shearing apparatus 50 according to possible aspects of the present invention.
  • the shearing apparatus 50 comprises a shearing device 26 and a drive member, which in the present case is schematically represented by a piston 22 moved by an actuator 24.
  • the actuator 24 can be part of a drive system that comprises, in a known manner, an electric motor and a connecting rod system which transforms the rotational motion of the electric motor into an alternative rectilinear movement of the piston 22, and therefore of the shearing device 26.
  • the shearing device 26 defines the so-called "format" part of the shearing apparatus 50, that is, the part that is replaced on each occasion according to the type of product to be obtained, as will be described in more detail below.
  • the shearing apparatus 50 is configured to selectively shear a support element 11 ( figs. 1 to 7 ), which in the example provided here is a continuous strip fed, in particular intermittently, in a direction of feed D ( figs. 3 to 7 ).
  • a support element 11 figs. 1 to 7
  • a direction of feed D figs. 3 to 7
  • One way of feeding the support element 11 with respect to the shearing apparatus 50 is described in the international patent application WO-A-2005/105574 cited above, and which is incorporated here by way of reference.
  • the support element 11 is the type provided with a plurality of inverted dome-shaped cells 12 ( figs. 1 to 7 ), each of which is sealed in the upper part, for example by a thin sheet of aluminum, and contains a small-sized product.
  • each cell 12 has a substantially cylindrical shape and has a diameter of about 2-8 mm or even more.
  • the support element 11 has an overall width LC ( figs. 2 and 7 ) and is suitable to be divided into three strips 13, each of which has a standard width which corresponds substantially to 1/3 of the overall width LC.
  • each strip 13 comprises three parallel columns of cells 12.
  • each unitary section 14 ( fig. 7 ) of the support element 11, after the latter has been cut by the shearing apparatus 50, as will be described in detail later, comprises two rows of cells 12, so that in each single unitary section 14 there are six cells 12.
  • the shearing device 26 comprises a frame 15 ( figs. 1 to 6 ), which in turn comprises a lower plate 16 and an upper plate 17, disposed, in the representation shown, horizontally and each having substantially the shape of a parallelepiped with a rectangular base.
  • An intermediate plate 20 is attached to the lower surface of the upper plate 17 and acts as a support member for the support element 11.
  • the latter in fact, is configured to pass between the upper plate 17 and the intermediate plate 20, on a work plane P ( figs. 2 to 6 ) of the latter.
  • the slider 19 comprises a connection plate 21 ( figs. 1 to 6 ), also having substantially the shape of a parallelepiped with a rectangular base, the lower part of which is connected to the piston 22 of the drive member 24.
  • the piston 22 slides inside a corresponding guide through hole 23 present in the lower plate 16 of the frame 15.
  • the slider 19 is mobile along a travel C, for example vertically, that is, for example along a vertical travel C, between an idle position, lowered, shown in figs 1, 2 , 3 and 5 , and an operating position, shown in figs. 4 and 6 , by means of the drive member 24.
  • the travel C ( figs. 4 and 6 ) of the slider 19 is, for example, about 15 mm, even if this value is purely indicative and given by way of example, but not binding.
  • One or more shearing devices 26, for example three in number and identical to each other, are mounted on the slider 19 so as to be adjacent in a longitudinal direction, that is, parallel to the direction of feed D of the support element 11.
  • Each shearing device 26 comprises in the upper part a shearing member 27, essentially consisting of a blade 28 with its profile corresponding to the outline of the unitary section 14 ( fig. 7 ) to be cut by the support element 11, which in this specific case is a rectangle with rounded angles, and a blade holder 38.
  • Each blade 28, seen in cross section ( figs. 3 to 6 ) has an inclined profile, with a higher part (on the left in figs. 3 to 6 ) and a lower part (on the right in figs. 3 to 6 ).
  • the blade 28 can have other different types of profile, such as for example L-shaped or V-shaped or other.
  • each shearing member 27 with respect to the slider 19 is variable by means of an actuation device 29, between a first operating condition, shown in figs. 3 and 4 , in which the shearing member 27 is more raised with respect to the connection plate 21, and a second operating condition, shown in figs. 5 and 6 , in which the shearing member 27 is lowered with respect to the connection plate 21.
  • a first operating condition shown in figs. 3 and 4
  • a second operating condition shown in figs. 5 and 6
  • the shearing member 27 is lowered with respect to the connection plate 21.
  • the position of the shearing member 27 is different with respect to the slider 19, while the travel C of the slider 19 is the same, so that the two operating conditions are obtained with the same travel of the drive member 24.
  • an actuation device can be an actuator with an intrinsically linear or circular movement, or be configured to convert a circular movement into a linear movement, or a linear movement into a circular movement. Conversion can be commonly done by means of mechanism types selected from a group consisting of: screw actuators, such as a screw jack, ball screw and roller screw actuators, or wheel and axle, for example drum, gear, pulley or shaft, actuators, such as a lifting cable, a winch, a rack and a pinion assembly, a chain drive, a strip or belt drive, actuators with a rigid chain and rigid strip, or belt.
  • screw actuators such as a screw jack, ball screw and roller screw actuators, or wheel and axle, for example drum, gear, pulley or shaft
  • actuators such as a lifting cable, a winch, a rack and a pinion assembly, a chain drive, a strip or belt drive, actuators with a rigid chain and rigid strip, or belt.
  • each actuation device 29 comprises a command device 31 which comprises or is associated with a motion conversion mechanism 60 configured to condition the position of the shearing member 27 with respect to the slider 19 in order to pass from the first operating condition to the second operating condition.
  • the command device 31 can, in some variants, be a fluid-dynamic device, or second fluid-dynamic device.
  • the motion conversion mechanism 60 comprises a piston 33 mobile along a longitudinal axis X. Therefore, in possible variants, the piston 33 can be comprised in the command device 31.
  • each actuation device 29 comprises a cylinder 30 having said longitudinal axis X which can be parallel to the direction of feed D of the support element 11.
  • the piston 33 is mobile axially, between a first operating condition which corresponds to the first operating condition of the shearing member 27 ( figs. 3 and 4 ), and a second operating condition which corresponds to the second operating condition of the shearing member 27 ( figs. 5 and 6 ).
  • the piston 33 is mobile, in particular, under the command of the command device 31.
  • the latter can be the fluid-dynamic type, for example pneumatic, or oil-based, and can comprise feed pipes 32.
  • each mobile piston 33 is provided with cam means 34, 134; 35, 135; 36 configured to condition the position of the shearing member 27 with respect to the slider 19.
  • each mobile piston 33 is shaped to define the cam means 34, 134; 35, 135; 36.
  • the cam means comprise a cam profile 34, 134; 35, 135; 36.
  • each piston 33 can have the external part shaped so as to form a cam profile which comprises two first support surfaces, respectively upper 34 and lower 134, substantially cylindrical, disposed at a first distance from the longitudinal axis X, and two second support surfaces, respectively upper 35 and lower 135, also substantially cylindrical, disposed at a second distance from the longitudinal axis X, which is smaller than that of the first support surfaces 34, 134.
  • Inclined planes 36 are present between the first support surfaces 34, 134 and, respectively, the second support surfaces 35, 135.
  • the first upper support surfaces 34 are offset axially along the longitudinal axis X with respect to the second lower support surfaces 135 and the second upper support surfaces 35 are offset axially along the longitudinal axis X with respect to the second lower support surfaces 134.
  • the shearing member 27 comprises upper contact means 37 and lower abutment means 25 configured to be in contact respectively with the first upper support surface 34 and the first lower support surface 134 in the first operating condition, or with the second upper support surface 35 and the second lower support surface 135 in the second operating condition.
  • first upper support surfaces 34 and the second lower support surfaces 135 are portions protruding from the piston 33, while the second upper support surfaces 35 and the second lower support surfaces 134 are seatings, recesses or grooves made in the thickness of the piston 33.
  • the upper contact means 37 and the lower abutment means 25 are integral with the shearing member 27, in particular mobile integrally with it.
  • the upper contact means 37 and the lower abutment means 25 can be made in a single body.
  • the upper contact means comprise a fork 37 integral with the shearing member 27.
  • the fork 37 which can be shaped like an inverted U, integral with the shearing member 27, more particularly the blade holder 38, can be configured to be in constant contact with the first upper support surfaces 34, or with the second upper support surfaces 35, as a function of the axial position of the corresponding piston 33.
  • the upper contact means 37 and the lower abutment means 25 are comprised in the motion conversion mechanism 60.
  • Each shearing device 26 described heretofore is very limited in size; in particular, its width LA ( fig. 2 ) is substantially equal to the standard width LS of each strip 13 of the support element 11.
  • Both the first fluid-dynamic device 24 and the three second command devices 31, for example fluid-dynamic, of the three shearing devices 26 of the apparatus 10, which selectively command the movement of the three shearing members 27, are controlled and commanded by a programmable processor of a known type and not shown in the drawings.
  • each shearing member 27 is connected to the blade holders 38, each of which is integrally attached to at least two columns 40, in this embodiment there being four columns 40.
  • each blade 28 is mobile independently with respect to the slider 19, driven by the respective actuation devices 29 (visible in figs. 3 to 6 ).
  • the number of sliding bushes 41 is equal to the number of columns 40 attached to the shearing members 27.
  • the slider 19 is provided with a total of twelve sliding bushes 41.
  • the apparatus 10 is also provided with knives 39 suitable to cut the lateral off-cuts, with a direction substantially transverse to the direction of feed of the strip of blisters.
  • the presence of the knives 39 causes the discarded blister not to remain attached to the remaining strip, but a piece of lateral off-cut (as seen in fig. 4 ) remains attached to it, thus distinguishing the discarded blister from the good ones.
  • the shearing device 26 In the idle position ( figs. 1, 2 , 3 and 5 ) the shearing device 26 is located with the slider 19 lowered, so that all three shearing members 27 are with their blades 28 just below the intermediate plate 20.
  • a first step of the method the command device is driven, for example the second fluid-dynamic device 31 of the corresponding shearing device 26, to take the piston 33 into its first operating condition ( fig. 3 ). It is obvious that if the piston 33 is already in this first operating condition, because, for example, it has been there from the previous shearing, this first step is understood to have been carried out and it is not necessary to repeat it.
  • the first upper support surfaces 34 are in correspondence and in contact with the fork 37 integral with the shearing member 27, and the second lower support surfaces 134 are resting on, that is, in contact with, the lower abutment means 25, for example abutment surfaces 25.
  • the first fluid-dynamic device 24 is driven and the slider 19 is taken upward until, at the end of its travel C ( fig. 4 ), the blade 28 performs the complete shearing of the support element 11 and thus produces a unitary section 14 ( fig. 7 ), completely detaching it from the lateral off-cut of the same support element 11.
  • the second step ends with the repositioning of the slider 19 in its initial lowered position, by driving the actuator 24 in the reverse direction.
  • the command device is driven, for example the second fluid-dynamic device 31 of the corresponding shearing device 26 ,to take the piston 33 into its second operating condition ( fig. 5 ). It is obvious that if the piston 33 is already in the second operating condition, because, for example, it has been there since the previous shearing, the first step is understood to have been carried out and it is not necessary to repeat it.
  • the shearing member 27 is in a lower starting position than that which it assumes in the first operating condition.
  • the inclined planes 36 on the external surface of the piston 33 facilitate the passage of the fork 37 from one operating condition to the other.
  • the second step of the method is then repeated, so that the first fluid-dynamic device 24 is driven and the slider 19 is taken upward as far as the end of its travel C ( fig. 6 ).
  • the blade 28 does not completely enter the support element 11 and thus performs only a partial shearing of the latter, and does not make any unitary section 14 ( fig. 7 ).
  • the second step ends with the repositioning of the slider 19 in its initial lowered position, by driving the first fluid-dynamic device 24 in the opposite direction.
  • the travel C of the slider 19 is the same, both in the first operating condition and also in the second operating condition. Therefore, the drive of the actuator 24 is not modified either, and this represents a considerable advantage over the state of the art, where it was necessary to modify the travel of the main drive in order to configure the shearing device to perform a total shearing or partial shearing.
  • the solution of the present invention therefore has the advantage that it does not require any intervention on the drive member which moves the entire slider 19, and therefore it is able to easily adapt also as an intervention on existing shearing apparatuses equipped with traditional movement which does not allow to modify the rotation travel.
  • the invention allows to act independently on adjacent portions of support element 11, as occurs in the case of a two-row or multi-row strip in general, allowing to partly shear a defective blister, and to totally shear a non-defective blister at the same time, an action which cannot be done in known solutions in which intervention was made on the travel of the main drive member.
  • each shearing member 27 can be taken, independently of the other shearing members 27, to the position of complete cutting or partial cutting, since each shearing member 27 is supported by its own support plate and is mobile independently of the others. This means that, with each cycle, a possibly defective blister can be discarded while the two good blisters on the same row can continue for the subsequent operating step.
  • the shearing apparatus 50 could simultaneously shear a plurality of support elements 11, also independently of one another.
  • the shearing apparatus 50 could comprise several sliders distinct from each other and independently drivable with respect to each other, so that each shearing member 27 can be driven independently.
  • the motion conversion mechanism 60 can comprise a rotatable shaped member of an eccentric type 61.
  • the rotatable shaped member of the eccentric type 61 can be comprised in the command device 31.
  • the command device 31 comprises a motor member 62.
  • the motor member 62 is provided to make the rotatable shaped member of the eccentric type 61 rotate.
  • the motor member 62 can be a motor provided with an actuator with an intrinsically rotary movement, or be configured to convert a linear movement into a circular movement.
  • a motor member 62 as used in association with the embodiments described here can be a motor member chosen from a group comprising: an electric motor, an electric step motor, a magnetic motor, a linear axle with a motor, a linear motor, such as a mechanical linear motor, a piezoelectric linear motor, an electromagnetic linear motor, an electromechanical motor, an electromagnet, a gear motor, in particular a direct current gear motor.
  • Conversion can be commonly done by means of mechanism types selected from a group consisting of: screw actuators, such as a screw jack, ball screw and roller screw actuators, or wheel and axle, for example drum, gear, pulley or shaft, actuators, such as a lifting cable, a winch, a rack and a pinion assembly, a chain drive, a strip or belt drive, actuators with a rigid chain and rigid strip, or belt.
  • screw actuators such as a screw jack, ball screw and roller screw actuators, or wheel and axle, for example drum, gear, pulley or shaft
  • actuators such as a lifting cable, a winch, a rack and a pinion assembly, a chain drive, a strip or belt drive, actuators with a rigid chain and rigid strip, or belt.
  • the command device 31, in these variant embodiments, can also comprise a shaft 63, or drive shaft (see figs. 9, 10 , 11, 12 , 13 and 14 ).
  • the shaft 63 develops along the longitudinal axis X.
  • the shaft 63 can be rotatably supported by bearings.
  • the rotatable shaped member of the eccentric type 61 is mounted on the shaft 63.
  • the shaft 63 is connected to the motor member 62.
  • the shaft 63 can be driven, in particular made to rotate, by the motor member 62.
  • Figs. 13 and 14 show the positions that the rotatable shaped member of the eccentric type 61 can assume by rotating in the idle position in the respective first operating condition (as in fig. 9 ) and second operating condition (as in fig. 11 ).

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Accessories And Tools For Shearing Machines (AREA)
EP18829997.8A 2017-11-28 2018-11-28 Device and method for selectively shear a support element, preferably a continuous strip Active EP3717189B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI201830875T SI3717189T1 (sl) 2017-11-28 2018-11-28 Naprava in postopek za striženje nosilnega elementa po izbiri, prednostno neprekinjenega traku

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IT201700136183 2017-11-28
PCT/IT2018/050232 WO2019106701A1 (en) 2017-11-28 2018-11-28 Device and method for selectively shear a support element, preferably a continuous strip

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EP3717189A1 EP3717189A1 (en) 2020-10-07
EP3717189B1 true EP3717189B1 (en) 2023-01-11

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ES (1) ES2941074T3 (es)
PL (1) PL3717189T3 (es)
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SE407760B (sv) * 1977-07-15 1979-04-23 Wallsten Hans Sett och anordning vid vakuumformning
ITBO20040269A1 (it) * 2004-04-29 2004-07-29 Ima Spa Metodo e unita' per la realizzazione di confezioni blister mediante recisione di un nastro alveolato

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SI3717189T1 (sl) 2023-04-28
ES2941074T3 (es) 2023-05-16
PL3717189T3 (pl) 2023-04-17
WO2019106701A1 (en) 2019-06-06

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