EP1491102A1 - Tobacco shredding machine - Google Patents
Tobacco shredding machine Download PDFInfo
- Publication number
- EP1491102A1 EP1491102A1 EP20040014549 EP04014549A EP1491102A1 EP 1491102 A1 EP1491102 A1 EP 1491102A1 EP 20040014549 EP20040014549 EP 20040014549 EP 04014549 A EP04014549 A EP 04014549A EP 1491102 A1 EP1491102 A1 EP 1491102A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cutting device
- knife
- machine according
- support structure
- tobacco
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 19
- 244000061176 Nicotiana tabacum Species 0.000 title 1
- 230000033001 locomotion Effects 0.000 claims abstract description 36
- 241000208125 Nicotiana Species 0.000 claims abstract description 18
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 7
- 230000000750 progressive effect Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000002452 interceptive effect Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000003019 stabilising effect Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B7/00—Cutting tobacco
- A24B7/04—Cutting tobacco by machines with revolving knives
- A24B7/08—Cutting tobacco by machines with revolving knives with several knives which act one after the other
- A24B7/12—Cutting tobacco by machines with revolving knives with several knives which act one after the other with cutter axes transverse to the feeding direction
Definitions
- the present invention relates to a tobacco shredding machine.
- the subject of the invention is a machine of the type comprising a main supporting structure, fixed, in which is arranged a tobacco feeder device with conveyor belts one above the other and converging, capable of pushing a mass or block of tobacco towards an outlet opening or aperture in said structure and a rotating cutting device fitted so as to pivot about a substantially horizontal axis in front of said outlet aperture, in an auxiliary support structure connected movably to the main structure; the rotating cutting device having a plurality of knives which extend horizontally, spaced at equal angular intervals about the axis of rotation, and which are capable successively of cutting across and penetrating into the mass or block of tobacco which in operation is made to advance by said feeder device at the above-mentioned outlet aperture.
- the purpose of the present invention is to produce a machine of this type, designed to allow the operations of cleaning and of removal and replacement of the knives of the rotating cutting device to be executed easily and safely.
- auxiliary support structure is fitted so as to be capable of translational movement with respect to the main structure in a transverse horizontal direction, parallel to the axis of rotation of the cutting device, between an operating or working position in which the rotating cutting device extends in front of the outlet aperture of the tobacco feeder device, and a non-operating position in which the rotating cutting device extends transversely beside said outlet aperture, which is uncovered and directly accessible.
- the number 1 is used to indicate as a whole a tobacco shredding machine according to the present invention.
- the machine 1 comprises a fixed main support structure 2, resting on the ground by means of a plurality of feet 3.
- a tobacco feeder device is arranged in the main support structure 2.
- This device basically comprises two conveyor belts 5 and 6, respectively upper and lower, converging towards the front end of the machine, and capable of pushing a mass or block of tobacco T towards an outlet opening or aperture 7 (figures 2 and 3).
- the shredding machine 1 also comprises an auxiliary support structure, indicated as a whole by the number 9, fitted so as to be capable of translational movement relative to the front face of the main structure 2, in a transverse horizontal direction, along a cylindrical guide bar 10 (see figure 2 in particular) fixed in the upper part of the main structure.
- an auxiliary support structure indicated as a whole by the number 9, fitted so as to be capable of translational movement relative to the front face of the main structure 2, in a transverse horizontal direction, along a cylindrical guide bar 10 (see figure 2 in particular) fixed in the upper part of the main structure.
- a rotating cutting device shown as a whole by the number 11, capable of revolving about a horizontal axis indicated by A-A in figure 1.
- This cutting device in a manner known in itself, comprises a rotating drum or barrel 12, having an axial appendage 13 to which is keyed a pulley 14 coupled by means of a belt 15 to a pulley 16 keyed to the shaft of a motor (for example) an electric motor 17, carried at the top by the auxiliary support structure (figures 1 and 3).
- the rotating cutting device 11 carries eight knives or cutting blades 18 (figure 2) running horizontally, spaced at equal angular intervals about the axis of rotation A-A.
- the knives 18 of the cutting device 11 are capable successively of cutting across and penetrating into the mass or block of tobacco T which is made to advance by the feeder device 4 at the outlet aperture 7.
- the auxiliary support structure 9 is capable of translational movement horizontally along the cylindrical guide 10, as a result of the operation of a drive device 19, which may be of the electromechanical or hydraulic type.
- the auxiliary support structure 9 when 'the auxiliary support structure 9 is in the working position shown in figures 1 and 2, part of it projects into the main support structure 2, in particular at its rotating cutting device 11. For this reason, the auxiliary structure 9 is not immediately capable of translational movement relative to the main support structure 2.
- the latter is appropriately swivellable about the axis of the cylindrical guide 10, between the operating position shown by continuous lines in figure 2 and an angularly rotated position, also shown, but in broken lines, in said figure 2.
- This swivelling of the auxiliary structure 9 can be controlled by means of a thrust crosspiece 20 (figures 2 and 3) the ends of which are connected to the rods 21a (figure 2) of two hydraulic actuators 21 (figure 3). Further hydraulic actuators 22 for raising/lowering (figures 2 and 3) are also appropriately involved in swivelling the auxiliary support structure 9, being coupled to the rods 21a of the actuators 21 by means of suitable mechanisms, one of which is shown by broken lines in figure 2, where it is indicated by the number 23.
- the auxiliary supporting structure 9 is capable of translational movement horizontally, in a transverse direction, that is parallel to the axis of the rotating cutting device 11, by means of the drive device 19, until it reaches the position shown in figure 3 in which the cutting device 11 is located beside the outlet aperture 7, and the latter is uncovered and directly accessible to an operator.
- a grinding device 24 is installed, comprising a revolving annular grinding wheel 25.
- This grinding device 24 may be swivelled between a non-operating position, shown by broken lines in figure 2, and an operating position, shown by solid lines, in which it is coupled to a traversing device, capable of imparting horizontal translational movement to it along two guides 26.
- This translational movement is produced by means of a motor 27 (figures 1 and 3) attached to the upper part of the auxiliary structure 9, the shaft of which is coupled by means of a belt transmission 29 to a worm screw 28.
- the latter is engaged in a nut component of a carriage 30 capable of translational motion along the guides 26, and to which is coupled the grinding device when it is arranged in the operating condition shown by continuous lines in figure 2.
- Operation of the motor 27 therefore causes translational movement of the grinding device 24 along the horizontal working travel defined by the guides 26 in such a way that the grinding wheel 25 is applied successively to the sharpened portion or cutting-edge of each of the knives 18 of the rotating cutting device.
- the auxiliary support structure 9 also appropriately carries a dressing device, indicated as a whole by the number 31, of a type known in itself, capable of dressing the working surface of the grindstone 25 of the sharpening device 24.
- the rotating cutting device comprises a blade movement mechanism capable of providing outward movement or advance, or inward movement or withdrawal of the knife.
- this mechanism comprises a shaft 32, revolving in one direction to cause outward movement and in the other to cause withdrawal of the knife.
- This shaft can be coupled to a first drive device 33 (figure 4) by means of a front clutch 34 of the friction type.
- the drive device 33 is arranged to cause rotation of the shaft 32 at relatively low speed so as to cause, in normal operation of the shredding machine, a slow progressive outward movement or advance of the associated knife 18, in order to compensate for blade wear.
- a second drive unit 40 is attached to the auxiliary support structure 9 and is shown, viewed from above partly in section and at a larger scale, in figure 5.
- This second drive unit can be coupled selectively to the blade movement mechanism for a knife 18 of the rotating cutting device 11 when the latter is in a predetermined angular position, to cause an inward or outward movement of this knife at a relatively higher speed compared with that produced by means of the motor 33, for example for executing an operation of replacing this knife with a new one and repositioning the new knife.
- the drive unit 40 basically comprises a motor 41, with an output shaft or spindle 42 which can be coupled to the end of the shaft 32 opposite the associated motor 33, by a clutch of the end face type indicated as a whole by the number 43 in figure 5.
- the front clutch 43 can be closed and therefore the shaft 42 of the motor 41 coupled to the shaft 32 by means of an actuator 44 comprising a control device 45 capable of translational movement which, when this actuator is operated, can cause translational movement of the rod 35 at the same time, and therefore open the friction clutch 34 and couple the motor 41 to the shaft 32.
- the rotating cutting device 11 can be positioned successively in the n angular positions in which in each case one of its knives 18 is located in a reference position in which it can easily be removed and replaced, and in which the associated rod 35 and the corresponding shaft 32 line up with the component of the actuator 44 capable of translational movement and with the shaft of the motor 41.
- the positioning of the rotating cutting device 11 in said n angular positions may be achieved using a cam unit coaxial and integral with said cutting device, provided with n peripheral slots into which a retaining and stabilising pawl or claw may be fitted, and which may be controlled for example by means of a manually operated hydraulic device.
- the motor 41 causes the new knife to move until its sharp portion or cutting-edge reaches the nominal operating position close to the periphery of the rotating cutting device.
- the sensor device 50 shown in figures 6 and 7 may appropriately be used.
- This device in the embodiment illustrated comprises an arm 51 connected to the auxiliary support structure 9 so that it can be swivelled between a working position, shown by continuous lines in figures 6 and 7, and a parked position, shown by broken lines in figure 7.
- the arm 51 carries a sensor 52, constituted for example by a precision microswitch.
- the sensor 52 When the arm 51 is located in the working position shown by solid lines in the drawings, the sensor 52 extends over the outward travel of the knife 18 being positioned. When, under the action of the motor 41, the knife 18 being positioned touches the sensor 52 with its cutting edge, the sensor supplies a control apparatus (not shown) with an electrical signal, capable of causing deactivation of the motor 41.
- the device 50 may be repositioned manually in the parked condition, and the rotating cutting device 11 can be made to rotate, so as to bring a new knife into the reference position in which the sensor 50 is located.
Landscapes
- Crushing And Pulverization Processes (AREA)
- Manufacture Of Tobacco Products (AREA)
- Glass Compositions (AREA)
- Manufacturing Of Cigar And Cigarette Tobacco (AREA)
- Debarking, Splitting, And Disintegration Of Timber (AREA)
Abstract
Description
- The present invention relates to a tobacco shredding machine.
- More specifically, the subject of the invention is a machine of the type comprising
a main supporting structure, fixed, in which is arranged a tobacco feeder device with conveyor belts one above the other and converging, capable of pushing a mass or block of tobacco towards an outlet opening or aperture in said structure and
a rotating cutting device fitted so as to pivot about a substantially horizontal axis in front of said outlet aperture, in an auxiliary support structure connected movably to the main structure;
the rotating cutting device having a plurality of knives which extend horizontally, spaced at equal angular intervals about the axis of rotation, and which are capable successively of cutting across and penetrating into the mass or block of tobacco which in operation is made to advance by said feeder device at the above-mentioned outlet aperture. - The purpose of the present invention is to produce a machine of this type, designed to allow the operations of cleaning and of removal and replacement of the knives of the rotating cutting device to be executed easily and safely.
- This and other purposes are achieved according to the invention with a machine of the type specified above, characterised in that the above-mentioned auxiliary support structure is fitted so as to be capable of translational movement with respect to the main structure in a transverse horizontal direction, parallel to the axis of rotation of the cutting device, between an operating or working position in which the rotating cutting device extends in front of the outlet aperture of the tobacco feeder device, and a non-operating position in which the rotating cutting device extends transversely beside said outlet aperture, which is uncovered and directly accessible.
- Other advantages and characteristics of the invention will become clear from the following detailed description given purely by way of non-limiting example, with reference to the appended drawings in which:
- figure 1 is a front view of a tobacco shredding machine according to the invention, shown in the operating or working condition;
- figure 2 is a sectional view at a larger scale along the line II-II in figure 1;
- figure 3 is a front view similar to the view in figure 1, and shows the machine in a non-operating condition;
- figure 4 is a partial view, partly in section, at a larger scale, showing a portion of the machine indicated by IV in figure 3;
- figure 5 is a view which shows the device for controlling outward movement and/or withdrawal of the knives of the rotating cutting device of the machine according to the invention;
- figure 6 is a partial view, partly in section, showing a sensor device for monitoring how far the knives of the rotating cutting device project; and
- figure 7 is a view along the arrow VII in figure 6.
- In figures 1 to 3, the number 1 is used to indicate as a whole a tobacco shredding machine according to the present invention.
- The machine 1 comprises a fixed
main support structure 2, resting on the ground by means of a plurality offeet 3. - As can be seen in figure 2 in particular, in a manner known in itself, a tobacco feeder device, indicated as a whole by the number 4, is arranged in the
main support structure 2. This device basically comprises twoconveyor belts - The shredding machine 1 also comprises an auxiliary support structure, indicated as a whole by the
number 9, fitted so as to be capable of translational movement relative to the front face of themain structure 2, in a transverse horizontal direction, along a cylindrical guide bar 10 (see figure 2 in particular) fixed in the upper part of the main structure. - Fitted in the
auxiliary support structure 9 is a rotating cutting device, indicated as a whole by thenumber 11, capable of revolving about a horizontal axis indicated by A-A in figure 1. - This
cutting device 11, in a manner known in itself, comprises a rotating drum orbarrel 12, having anaxial appendage 13 to which is keyed apulley 14 coupled by means of abelt 15 to apulley 16 keyed to the shaft of a motor (for example) anelectric motor 17, carried at the top by the auxiliary support structure (figures 1 and 3). - In the example of embodiment illustrated, the rotating
cutting device 11 carries eight knives or cutting blades 18 (figure 2) running horizontally, spaced at equal angular intervals about the axis of rotation A-A. - As can be seen from figure 2 in particular, in operation, as a result of rotation of the head or
drum 12 theknives 18 of thecutting device 11 are capable successively of cutting across and penetrating into the mass or block of tobacco T which is made to advance by the feeder device 4 at theoutlet aperture 7. Still with reference to figure 2, theauxiliary support structure 9 is capable of translational movement horizontally along thecylindrical guide 10, as a result of the operation of adrive device 19, which may be of the electromechanical or hydraulic type. - In the example of embodiment illustrated, when 'the
auxiliary support structure 9 is in the working position shown in figures 1 and 2, part of it projects into themain support structure 2, in particular at its rotatingcutting device 11. For this reason, theauxiliary structure 9 is not immediately capable of translational movement relative to themain support structure 2. - To overcome the interference between the
structure 9 and in particular thecutting device 11 and themain structure 2, so that translational movement of the auxiliary structure is then possible, the latter is appropriately swivellable about the axis of thecylindrical guide 10, between the operating position shown by continuous lines in figure 2 and an angularly rotated position, also shown, but in broken lines, in said figure 2. - This swivelling of the
auxiliary structure 9 can be controlled by means of a thrust crosspiece 20 (figures 2 and 3) the ends of which are connected to therods 21a (figure 2) of two hydraulic actuators 21 (figure 3). Furtherhydraulic actuators 22 for raising/lowering (figures 2 and 3) are also appropriately involved in swivelling theauxiliary support structure 9, being coupled to therods 21a of theactuators 21 by means of suitable mechanisms, one of which is shown by broken lines in figure 2, where it is indicated by thenumber 23. - Once it has been rotated to the position shown by broken lines in figure 2, the auxiliary supporting
structure 9 is capable of translational movement horizontally, in a transverse direction, that is parallel to the axis of the rotatingcutting device 11, by means of thedrive device 19, until it reaches the position shown in figure 3 in which thecutting device 11 is located beside theoutlet aperture 7, and the latter is uncovered and directly accessible to an operator. - In the
auxiliary support structure 9 and in particular in the area above the rotatingcutting device 11, agrinding device 24 is installed, comprising a revolvingannular grinding wheel 25. - This
grinding device 24 may be swivelled between a non-operating position, shown by broken lines in figure 2, and an operating position, shown by solid lines, in which it is coupled to a traversing device, capable of imparting horizontal translational movement to it along twoguides 26. This translational movement is produced by means of a motor 27 (figures 1 and 3) attached to the upper part of theauxiliary structure 9, the shaft of which is coupled by means of abelt transmission 29 to aworm screw 28. The latter is engaged in a nut component of acarriage 30 capable of translational motion along theguides 26, and to which is coupled the grinding device when it is arranged in the operating condition shown by continuous lines in figure 2. - Operation of the
motor 27 therefore causes translational movement of thegrinding device 24 along the horizontal working travel defined by theguides 26 in such a way that thegrinding wheel 25 is applied successively to the sharpened portion or cutting-edge of each of theknives 18 of the rotating cutting device. - As can be seen in figures 1 and 3, and in part also in figure 4, the
auxiliary support structure 9 also appropriately carries a dressing device, indicated as a whole by thenumber 31, of a type known in itself, capable of dressing the working surface of thegrindstone 25 of thesharpening device 24. - With reference to figure 4, for each blade or
knife 18, the rotating cutting device comprises a blade movement mechanism capable of providing outward movement or advance, or inward movement or withdrawal of the knife. In the example of embodiment illustrated, this mechanism comprises ashaft 32, revolving in one direction to cause outward movement and in the other to cause withdrawal of the knife. This shaft can be coupled to a first drive device 33 (figure 4) by means of afront clutch 34 of the friction type. Thedrive device 33 is arranged to cause rotation of theshaft 32 at relatively low speed so as to cause, in normal operation of the shredding machine, a slow progressive outward movement or advance of the associatedknife 18, in order to compensate for blade wear. - With the
shaft 32 associated with each blade is associated acorresponding rod 35 capable of translational movement to control the friction clutch 34 (figure 4). With reference to figure 4, when therod 35 is moved to the right, it causes theclutch 34 to open and theshaft 32 to be uncoupled from thedrive device 33. The function and purposes of thecontrol rod 35 will become clear from what follows in the present description. - As shown by broken lines in figures 1 and 3, a
second drive unit 40 is attached to theauxiliary support structure 9 and is shown, viewed from above partly in section and at a larger scale, in figure 5. This second drive unit can be coupled selectively to the blade movement mechanism for aknife 18 of the rotatingcutting device 11 when the latter is in a predetermined angular position, to cause an inward or outward movement of this knife at a relatively higher speed compared with that produced by means of themotor 33, for example for executing an operation of replacing this knife with a new one and repositioning the new knife. - With reference to figure 5, the
drive unit 40 basically comprises amotor 41, with an output shaft orspindle 42 which can be coupled to the end of theshaft 32 opposite the associatedmotor 33, by a clutch of the end face type indicated as a whole by thenumber 43 in figure 5. - The
front clutch 43 can be closed and therefore theshaft 42 of themotor 41 coupled to theshaft 32 by means of anactuator 44 comprising acontrol device 45 capable of translational movement which, when this actuator is operated, can cause translational movement of therod 35 at the same time, and therefore open thefriction clutch 34 and couple themotor 41 to theshaft 32. - With a view to replacement of its n knives 18 (n=8 in the example illustrated) the rotating
cutting device 11 can be positioned successively in the n angular positions in which in each case one of itsknives 18 is located in a reference position in which it can easily be removed and replaced, and in which theassociated rod 35 and thecorresponding shaft 32 line up with the component of theactuator 44 capable of translational movement and with the shaft of themotor 41. - The positioning of the rotating
cutting device 11 in said n angular positions may be achieved using a cam unit coaxial and integral with said cutting device, provided with n peripheral slots into which a retaining and stabilising pawl or claw may be fitted, and which may be controlled for example by means of a manually operated hydraulic device. - Operation of the
actuators 44 and themotor 41 in this condition uncouples theshaft 32 associated with the knife being examined from thecorresponding motor 33 and couples this shaft to themotor 41 which is capable of moving it more rapidly, with a view to removing and replacing the knife. - Once a blade has been replaced, the
motor 41 causes the new knife to move until its sharp portion or cutting-edge reaches the nominal operating position close to the periphery of the rotating cutting device. - To determine this position of the new knife accurately, the
sensor device 50 shown in figures 6 and 7 may appropriately be used. This device in the embodiment illustrated comprises anarm 51 connected to theauxiliary support structure 9 so that it can be swivelled between a working position, shown by continuous lines in figures 6 and 7, and a parked position, shown by broken lines in figure 7. - At its free end, the
arm 51 carries asensor 52, constituted for example by a precision microswitch. - When the
arm 51 is located in the working position shown by solid lines in the drawings, thesensor 52 extends over the outward travel of theknife 18 being positioned. When, under the action of themotor 41, theknife 18 being positioned touches thesensor 52 with its cutting edge, the sensor supplies a control apparatus (not shown) with an electrical signal, capable of causing deactivation of themotor 41. - With a view to positioning another
knife 18 of the rotatingcutting device 11, thedevice 50 may be repositioned manually in the parked condition, and the rotatingcutting device 11 can be made to rotate, so as to bring a new knife into the reference position in which thesensor 50 is located. - Naturally, the principal of the invention remaining the same, the forms of embodiment and details of construction may be varied widely with respect to those described and illustrated, given purely by way of non-limiting example, without thereby departing from the scope of the invention as defined in the appended claims.
Claims (11)
- A machine (1) for shredding tobacco (T), comprising
a main support structure (2), fixed, in which is arranged a tobacco feed device (4) with convergent conveyor belts (5, 6), capable of pushing a mass or block of tobacco (T) towards an outlet opening or aperture (7) of said structure (2), and
a rotating cutting device (11) fitted so as to revolve about a substantially horizontal axis (A-A) in front of said outlet aperture (7) in an auxiliary support structure (9) connected movably to the main structure (2);
the rotating cutting device (11) having a plurality of substantially horizontal knives (18), spaced at equal angular intervals about the axis of rotation (A-A) and capable of successively cutting across and penetrating into the mass or block of tobacco (T) which in operation is made to advance by said feeder device (4) at the above-mentioned outlet aperture (7);
the machine (1) being characterised in that said auxiliary support structure (9) is fitted so as to be capable of translational movement with respect to the main structure (2) in a horizontal direction parallel to the axis of rotation (A-A) of said cutting device (11) between an operating or working position in which the cutting device (11) extends in front of the outlet aperture (7) of the tobacco feeder device (4) and a non-operating position in which the cutting device (11) extends transversely beside said outlet aperture (7), which is uncovered and directly accessible. - A machine according to claim 1, in which in the working position the auxiliary structure (9) and/or the cutting device (11) partly projects into the main structure (2) and in which the auxiliary structure (9) is fitted so as to be slidable horizontally and swivellable vertically with respect to a transverse horizontal guide (10) attached to the main structure (2); control means (20-23) being provided to swivel the auxiliary structure (9) about said guide (10), starting from said working position to an angularly rotated position in which said auxiliary structure (9) is capable of translational movement sideways along said horizontal guide (10) without interfering with the main structure (2).
- A machine according to claim 1 or 2, in which said auxiliary support structure (9) also carries
first drive means (17) capable of causing rotation of the cutting device (11),
a sharpening device (24) with a revolving grinding wheel (25), capable of translational movement with respect to said auxiliary structure (9) along a horizontal working path (26) in which the grinding wheel (25) can be applied to the sharpened portion of the knives (18) of the cutting device (11) and
second drive means (27) capable of causing translational movement of the sharpening device (24, 25) along said path (26). - A machine according to claim 3, in which said auxiliary support structure (9) also carries a dressing device (31) capable of dressing the grinding wheel (25) of the sharpening device (24).
- A machine according to any one of the preceding claims, in which for each blade or knife (18) the rotating cutting device (11) comprises a movement mechanism (32) to which can be coupled selectively a respective first drive device (33) capable of causing during operation a progressive outward movement or advance of the knife (18) at a relatively low speed, to compensate for wear in the blade; a second drive device (40) being associated with the rotating cutting device (11), attached to the auxiliary structure (9) and capable of being coupled when the rotor (11) is stationary to the blade movement mechanism (32) of a knife (18) of the cutting device (11) when the latter is in a predetermined angular position, to cause outward movement of this knife (18) or inward movement of an associated positioner acting on the knife (18) at a relatively higher speed, for example for executing the operation of replacing said knife with a new one and repositioning the new knife.
- A machine according to claim 5, in which said blade movement mechanism comprises a rotating shaft (32) which can be coupled to or uncoupled from the associated first drive device (33) by means of a friction clutch (34).
- A machine according to claim 6, in which said friction clutch (34) can be opened by means of a rod (35) capable of translational movement parallel to said shaft (32).
- A machine according to claims 5 and 7, in which said second drive device (41) can be coupled selectively to a rotating shaft (32) associated with a knife (18) by means of a front clutch (43); an actuator device (44) being associated with said second drive device (41), capable when operated of causing translational movement of the rod (35) at the same time, to open the friction clutch (35) associated with the blade movement shaft (32) of a knife (38) and coupling of said second drive device (41) to this moving shaft (32).
- A machine according to any one of the preceding claims, in which with a view to replacing its n blades (18), the rotating cutting device (11) can be positioned successively, for example by means of a hydraulic actuator, in the n angular positions in which in each case a knife (18) is in a reference position in which it can easily be removed and replaced.
- A machine according to any one of the preceding claims, in which in said auxiliary support structure (9) there is provided a sensor device (50) available in a working position in which it is capable of supplying an electrical signal when a knife (18) of the rotating cutting device (11), arranged in said reference position, reaches a position in which its cutting edge is in a predefined nominal position.
- A machine according to claim 10, in which said sensor (50) comprises a precision microswitch (52) carried by an arm (51) connected to said auxiliary support structure (9) and which can be moved between a working position in which the microswitch (52) extends over the outward travel of a knife (18) of the rotating cutting device (11), and a parked position in which said microswitch (52) extends outside said travel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL04014549T PL1491102T3 (en) | 2003-06-25 | 2004-06-22 | Tobacco shredding machine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000481A ITTO20030481A1 (en) | 2003-06-25 | 2003-06-25 | TOBACCO SHREDDING MACHINE |
ITTO20030481 | 2003-06-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1491102A1 true EP1491102A1 (en) | 2004-12-29 |
EP1491102B1 EP1491102B1 (en) | 2006-03-08 |
Family
ID=33398088
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04014549A Expired - Lifetime EP1491102B1 (en) | 2003-06-25 | 2004-06-22 | Tobacco shredding machine |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1491102B1 (en) |
AT (1) | ATE319333T1 (en) |
BR (1) | BRPI0402542B1 (en) |
DE (1) | DE602004000448T2 (en) |
ES (1) | ES2256808T3 (en) |
IT (1) | ITTO20030481A1 (en) |
PL (1) | PL1491102T3 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011039529A1 (en) * | 2009-09-29 | 2011-04-07 | Dickinson Legg Limited | Cutting and grinding apparatus |
EP2965638A1 (en) * | 2014-07-08 | 2016-01-13 | Dickinson Legg Limited | Knife positioning apparatus |
CN107836746A (en) * | 2017-10-19 | 2018-03-27 | 浙江理工大学 | The cutting of fresh tobacco leaf petiole and clamping method in upper clamp device in order and its cutting |
CN109452683A (en) * | 2018-12-06 | 2019-03-12 | 阜阳市卓创科技服务生产力促进中心 | A kind of cigarette raw material processing cutting equipment and its cutting method |
CN110693078A (en) * | 2019-11-22 | 2020-01-17 | 江西中烟工业有限责任公司 | Cigarette machine VE supplies silk machine to remove auxiliary device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE928094C (en) * | 1950-06-21 | 1955-05-23 | Kurt Koerber & Co K G | Roller tobacco cutter |
US2763307A (en) * | 1950-04-04 | 1956-09-18 | Robert Legg Ltd | Machine for cutting tobacco and the like |
DE968119C (en) * | 1953-02-17 | 1958-01-16 | Kurt Koerber & Co K G | Roller tobacco cutter |
GB1072961A (en) * | 1963-04-03 | 1967-06-21 | Amf Internat Ltd | Improvements relating to machines for cutting leaf tobacco |
-
2003
- 2003-06-25 IT IT000481A patent/ITTO20030481A1/en unknown
-
2004
- 2004-06-22 PL PL04014549T patent/PL1491102T3/en unknown
- 2004-06-22 EP EP04014549A patent/EP1491102B1/en not_active Expired - Lifetime
- 2004-06-22 DE DE602004000448T patent/DE602004000448T2/en not_active Expired - Lifetime
- 2004-06-22 ES ES04014549T patent/ES2256808T3/en not_active Expired - Lifetime
- 2004-06-22 AT AT04014549T patent/ATE319333T1/en active
- 2004-06-24 BR BRPI0402542-3A patent/BRPI0402542B1/en not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2763307A (en) * | 1950-04-04 | 1956-09-18 | Robert Legg Ltd | Machine for cutting tobacco and the like |
DE928094C (en) * | 1950-06-21 | 1955-05-23 | Kurt Koerber & Co K G | Roller tobacco cutter |
DE968119C (en) * | 1953-02-17 | 1958-01-16 | Kurt Koerber & Co K G | Roller tobacco cutter |
GB1072961A (en) * | 1963-04-03 | 1967-06-21 | Amf Internat Ltd | Improvements relating to machines for cutting leaf tobacco |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011039529A1 (en) * | 2009-09-29 | 2011-04-07 | Dickinson Legg Limited | Cutting and grinding apparatus |
US9474302B2 (en) | 2009-09-29 | 2016-10-25 | Dickinson Legg Limited | Cutting and grinding apparatus, method of manufacture of cut lengths of tobacco, and method for controlling the operation of a cutting apparatus |
EP2965638A1 (en) * | 2014-07-08 | 2016-01-13 | Dickinson Legg Limited | Knife positioning apparatus |
CN107836746A (en) * | 2017-10-19 | 2018-03-27 | 浙江理工大学 | The cutting of fresh tobacco leaf petiole and clamping method in upper clamp device in order and its cutting |
CN107836746B (en) * | 2017-10-19 | 2020-03-27 | 浙江理工大学 | Fresh tobacco leaf stalk sectioning and orderly clamping device and sectioning and clamping method thereof |
CN109452683A (en) * | 2018-12-06 | 2019-03-12 | 阜阳市卓创科技服务生产力促进中心 | A kind of cigarette raw material processing cutting equipment and its cutting method |
CN110693078A (en) * | 2019-11-22 | 2020-01-17 | 江西中烟工业有限责任公司 | Cigarette machine VE supplies silk machine to remove auxiliary device |
CN110693078B (en) * | 2019-11-22 | 2024-04-16 | 江西中烟工业有限责任公司 | Movable auxiliary device of VE cut tobacco feeder of cigarette making machine |
Also Published As
Publication number | Publication date |
---|---|
ITTO20030481A1 (en) | 2004-12-26 |
PL1491102T3 (en) | 2006-06-30 |
EP1491102B1 (en) | 2006-03-08 |
BRPI0402542B1 (en) | 2012-12-11 |
ES2256808T3 (en) | 2006-07-16 |
BRPI0402542A (en) | 2005-05-24 |
DE602004000448T2 (en) | 2006-09-28 |
ATE319333T1 (en) | 2006-03-15 |
DE602004000448D1 (en) | 2006-05-04 |
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