Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
  • B65H29/02—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles
  • B65H29/04—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands
  • B65H29/041—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands and introducing into a pile
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
  • B65H29/58—Article switches or diverters
  • B65H29/585—Article switches or diverters taking samples from the main stream
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
  • B65H29/12—Delivering or advancing articles from machines; Advancing articles to or into piles by means of the nip between two, or between two sets of, moving tapes or bands or rollers
  • B65H29/14—Delivering or advancing articles from machines; Advancing articles to or into piles by means of the nip between two, or between two sets of, moving tapes or bands or rollers and introducing into a pile
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H31/00—Pile receivers
  • B65H31/34—Apparatus for squaring-up piled articles
  • B65H31/38—Apparatus for vibrating or knocking the pile during piling
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2301/00—Handling processes for sheets or webs
  • B65H2301/50—Auxiliary process performed during handling process
  • B65H2301/51—Modifying a characteristic of handled material
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2403/00—Power transmission; Driving means
  • B65H2403/50—Driving mechanisms
  • B65H2403/51—Cam mechanisms
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2404/00—Parts for transporting or guiding the handled material
  • B65H2404/70—Other elements in edge contact with handled material, e.g. registering, orientating, guiding devices
  • B65H2404/72—Stops, gauge pins, e.g. stationary
  • B65H2404/722—Stops, gauge pins, e.g. stationary movable in operation
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2404/00—Parts for transporting or guiding the handled material
  • B65H2404/70—Other elements in edge contact with handled material, e.g. registering, orientating, guiding devices
  • B65H2404/72—Stops, gauge pins, e.g. stationary
  • B65H2404/725—Stops, gauge pins, e.g. stationary retractable
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2405/00—Parts for holding the handled material
  • B65H2405/10—Cassettes, holders, bins, decks, trays, supports or magazines for sheets stacked substantially horizontally
  • B65H2405/11—Parts and details thereof
  • B65H2405/112—Rear, i.e. portion opposite to the feeding / delivering side
  • B65H2405/1124—Rear, i.e. portion opposite to the feeding / delivering side pivotable, details therefor
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2555/00—Actuating means
  • B65H2555/10—Actuating means linear
  • B65H2555/11—Actuating means linear pneumatic, e.g. inflatable elements
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2801/00—Application field
  • B65H2801/42—Die-cutting

Definitions

• the present invention relates to a storage device in a stack of leaf-shaped elements in a shaping machine.
• the invention also relates to a machine for shaping sheet-shaped elements comprising at least one such storage device.
• the sheets are for example cut according to a matrix corresponding to the developed shape that one wishes to obtain, for example in order to obtain a plurality of boxes of a given shape.
• the attachment points between the poses sheets are broken and the poses sheets pile up in a reception area where they are stored in vertical stacks by a ranger.
• a storage grid operated by articulated arms pivots slightly from an inclined position to a vertical position, to receive and store the sheet in a stack.
• the storage grid then returns to its tilted "funnel" position to receive a new sheet. This reciprocating movement back and forth of the storage grid is also called “jogging movement”.
• One of the aims of the present invention is therefore to propose a device for storing sheets in stacks allowing easier removal of the sheets.
• the subject of the present invention is a storage device for the storage in a stack of sheet-shaped elements in a shaping machine, the storage device comprising:
• the actuating device comprises cam means configured to move the storage surface upwards in the retracted position, in a high position intended to be located above the top of the stack of sheets.
• the cam means comprise at least a first follower roller fixed to the storage surface and at least one first control profile cooperating with the at least one first follower roller to guide said movement of the storage surface.
• the cam means comprising the at least one first follower roller and the at least one first control profile configured to move the storage surface between the withdrawal position and the upwardly retracted position, are the same as those configured to move the storage surface between said withdrawal position and the vertical front position in the reciprocating movement back and forth for storing the sheets.
• Guiding the movements of the storage surface by the at least one first follower roller and the at least one first control profile, instead of an articulated pivot axis, makes it possible to retract the storage surface above the stack of leaves. It is thus possible to provide in a simple, robust and economical manner, adapted movements of the storage surface by optimizing the functional design of the at least one first control profile, to provide wide access to the battery in the reception area for easy removal of leaf-shaped elements.
• the at least one first control profile is straight.
• the line of the at least one first control profile forms, for example, an angle of less than 30 ° with the horizontal.
• the cam means comprise at least a second follower roller fixed to the storage surface below the at least one first follower roller and at least one second control profile cooperating with the at least one second follower roller.
• a first portion of the at least one second control profile is curved to guide the movement of the storage surface between the withdrawal position and the vertical front position and a second portion of the second control profile is straight to guide the movement of the surface between the withdrawal position and the retracted position.
• the cam means comprising the at least one second follower roller and the at least one second control profile configured for move the storage surface between the withdrawal position and the retracted position up, are the same as those configured to move the storage surface between said withdrawal position and the vertical front position in the reciprocating back and forth movement for storing sheets.
• the straight line of the second portion of the at least one second control profile forms for example an angle less than 30 ° with the vertical.
• the second portion of the second control profile for example crosses the direction of the first control profile.
• the follower rollers are arranged on the storage surface for example so that their cooperation with the control profiles in the retracted position displaces the storage surface in the high position by forming an angle less than 30 ° with the horizontal.
• the at least one first control profile and the at least one second control profile can be offset laterally to prevent the at least one first follower roller from cooperating with the at least one second control profile, in particular when the first follower roller following the first control profile returns from the retracted position and crosses the second control profile.
• the at least one first or second control profile is for example formed in a groove.
• the actuating device may comprise at least one elastic member having a fixed end and one end fixed to the storage surface to ensure contact of the at least one first follower roller on the at least one first control profile and, if necessary , of at least one second follower roller on the at least one second control profile.
• the elastic member makes it possible to ensure that the follower rollers press on a respective control profile.
• the cam means comprise two first follower rollers, each fixed to a respective end of the storage surface and two first control profiles cooperating with a respective first follower roller.
• the cam means comprise two second follower rollers, each fixed to a respective end of the storage surface below a first follower roller and two second control profiles cooperating with a respective second follower roller.
• the actuating device comprises for example at least one actuator for causing the displacement of the storage surface.
• the at least one actuator comprises for example a double pneumatic cylinder configured to move the storage surface between the withdrawal position and the vertical front position over a short stroke and to move the storage surface between the withdrawal position and the retracted position on a great race.
• the invention also relates to a machine for shaping sheet-shaped elements, characterized in that it comprises at least one device for storing sheet-shaped elements in a stack as described above.
• Figure 1 illustrates very schematically an example of a machine for shaping sheet-shaped elements.
• Figure 2 shows a perspective view of a storage device for the shaping machine of Figure 1.
• Figure 3 shows a perspective view of elements of an actuator of the storage device of Figure 2.
• Figure 4 shows a partial perspective view of a detail of the storage device of Figure 2.
• Figure 5A shows a perspective view of elements of the storage device of Figure 2 with the storage surface in the vertical front position.
• Figure 5B shows the elements of the actuator of Figure 3 in the vertical front position.
• Figure 6A shows a view similar to Figure 5A with the storage surface in the withdrawn position.
• Figure 6B shows a view similar to Figure 5B in the withdrawn position.
• Figure 7A shows a view similar to Figure 5A with the storage surface in the retracted position.
• Figure 7B shows a view similar to Figure 5B in the retracted position.
• Figure 8A shows a side view of a stack of sheet-like elements and the actuator of Figure 2 with the storage surface in the vertical forward position.
• Figure 8B shows a view similar to Figure 8A with the storage surface in the withdrawn position.
• Figure 8C shows a view similar to Figure 8A with the storage surface in the retracted position.
• upstream and downstream are defined with reference to the longitudinal direction of movement of the sheets D ( Figure 1).
• the sheets move from upstream to downstream, generally following the main longitudinal axis of the machine, in a movement clocked by periodic stops.
• sheet-shaped elements and “sheets” will be considered equivalent, and will relate to elements composed of corrugated cardboard as well as flat cardboard, paper or any other material commonly used in the packaging industry.
• sheet or “element in sheets” or “element in the form of leaves” very generally designate any print medium in the form of leaves such as, for example , sheets of cardboard, paper, plastic, etc.
• FIG. 1 shows an example of a shaping machine 1 for sheet transformation.
• This shaping machine 1 is conventionally composed of several work stations which are juxtaposed but interdependent one by one to form a unitary assembly.
• each sheet takes place in the transformation station 300, for example between a fixed plate and a lower movable plate of the press 301 for cutting the sheets according to a matrix corresponding to the developed shape which is wishes to obtain, for example in order to obtain a plurality of boxes of a given shape.
• the movable stage rises and falls successively once during each machine cycle.
• a transport device 70 is also provided for individually moving each sheet from the output of the margin table 200 to the station for receiving the sheets 500, passing through the processing station 300 by press.
• the transport device 70 comprises a plurality of transverse bars provided with grippers, commonly called gripper bars 75 which each come in their turn to grab a sheet at its front edge, before drawing it successively in the various stations of the stations 300, 400, 500 of machine 1.
• the lateral ends of the clamp bars 75 are each connected respectively to a side chain forming a loop, commonly called chain train 80.
• Two chain trains 80 are thus arranged laterally on each side of the clamp bars 75.
• the set of gripper bars 75 will start from a stopped position, accelerate, reach a maximum speed, decelerate, then stop, thus describing a cycle corresponding to the movement d 'a sheet from one workstation to the next workstation.
• the chain trains 80 move and stop periodically so that, during each movement, all the gripper bars 75 engaged with a sheet are passed from one station to the adjacent downstream work station. Each station performs its work in synchronism with this cycle which is commonly called the machine cycle.
• the workstations start a new job at the start of each machine cycle.
• the number and nature of the processing stations in a shaping machine 1 can vary depending on the nature and the complexity of the operations to be performed on the sheets. In the context of the invention, the concept of shaping machine 1 thus covers a very large number of embodiments due to the modular structure of these assemblies. Depending on the number, nature and arrangement of the workstations used, it is indeed possible to obtain a multitude of different processing machines. It is also important to underline that there are other types of work stations than those mentioned, such as embossing stations, upsetting stations or such as stations for loading stripes for stamping for stamping machine or foil stamping machine. hot foil stamping in which between the platens of a press, patterns are applied to each sheet, from a film from one or more stamping bands. Finally, it is understood that the same shaping machine can very well be equipped with several stations of the same type.
• the transformed sheets are stacked in a vertical stack in the reception zone 2, for example on a reception pallet 4 movable vertically.
• the shaping machine 1 also comprises at least one storage device 10, arranged in the sheet reception station 500, for storing the sheets transformed into stacks.
• the shaping machine 1 comprises for example two storage devices 10 oriented opposite a respective face of the stack of sheets, a fixed stop being arranged on the other side of the stack for each storage device 10. There are for example a front storage device 10 and a lateral storage device 10 per machine 1.
• the storage device 10 comprises a movable storage surface 11 and an actuating device 12 for moving the storage surface 11 between a withdrawal position and a vertical front position in a reciprocating movement back and forth for storing the sheets in a stack and between the withdrawal position and a retracted position to free access to the stack of P-shaped elements.
• the storage surface 11 has a flat surface, for example formed in a plate which can be ribbed and / or perforated, such as a grid.
• the storage surface 11 is movable in a jogging movement, that is to say in a reciprocating movement back and forth between the vertical front position ( Figures 5A, 8A) and the withdrawal position ( Figures 6A, 8B) .
• the jogging movement of the storage surface 11 makes it possible to arrange the sheets after shaping to form a stack. This movement is performed each time a sheet is received, for example of the order of two or three times per second.
• the storage surface 11 is also movable in the retracted position ( Figure 7 A, 8C) to free access to the stack of sheet-shaped elements P.
• the actuating device 12 comprises cam means configured to move the storage surface 11 upwards in the retracted position, in a high position intended to be located above the top of the stack of sheets (Figure 8C).
• the cam means comprise at least one first follower roller 14 fixed to the storage surface 11, at one end of the latter ( Figures 3 and 4) and at least one first control profile 15, for example formed in a support 16 of the storage device 10 (FIG. 3), cooperating with the at least one first follower roller 14 to guide the movements of the storage surface 11.
• the cam means comprising the at least one first follower roller 14 and the at least one first control profile 15 configured to move the storage surface 11 between the withdrawal position and the retracted position upwards , are the same as those configured to move the storage surface 11 between said withdrawal position and the vertical front position in the reciprocating movement back and forth for storing the sheets.
• the at least one first control profile 15 is for example straight ( Figure 3).
• the same straight line then guides the at least one first follower roller 14 between the three positions, there is therefore no discontinuity to move the storage surface 11.
• the guiding of the storage surface 11 on the jogging movement represents a small proportion of this right control profile 15, such as less than 10% of the first control profile 15.
• the straight line of the at least one first control profile 15 forms for example an angle a less than 30 ° with the horizontal.
• the cam means further comprise at least one second follower roller 17 fixed to the storage surface 11 below the at least one first follower roller 14 and at least one second control profile 18 cooperating with the at least one second follower roller 17 ( Figure 3).
• the cam means comprising the at least one second follower roller 17 and the at least one second control profile 18 configured to move the storage surface 11 between the position of withdrawal and the position retracted upwards , are the same as those configured to move the storage surface 11 between said withdrawal position and the vertical front position in the reciprocating movement back and forth for storing the sheets.
• a first portion 18a of the at least one second control profile 18 is curved, such as forming a loop portion, to guide the movement of the storage surface 11 between the withdrawal position and the vertical front position.
• the curved shape of the second control profile 18 causes a slight decline in the storage surface 11 in the withdrawn position in addition to its pivoting.
• a second portion 18b of the second control profile 18 is straight to guide the movement of the storage surface 11 between the withdrawal position and the retracted position.
• the first portion 18a and the second portion 18b are adjacent and continuous to move the storage surface 11 continuously between the three positions.
• the straight line of the second portion 18b of the at least one second control profile 18 forms for example an angle ⁇ less than 30 ° with the vertical.
• the second portion 18b of the second control profile 18 crosses the direction of the first control profile 15, for example at the end of the small proportion of this control profile 15.
• the second control profile 18 may also include a third portion 18c, located at the end of the second portion 18b and forming an inclined straight line with which the second follower roller 17 cooperates in the retracted position ( Figures 3 and 7B).
• the follower rollers 14, 17 are arranged on the storage surface 11 for example so that their cooperation with the control profiles 15, 18 in the retracted position displaces the storage surface 11 in the high position by forming an angle less than 30 ° with the horizontal.
• the storage surface 11 in the vertical front position, the storage surface 11 is arranged vertically and pushes the sheet away to store it in a stack (FIG. 5A, 8A).
• the storage surface 11 In the withdrawn position, the storage surface 11 has pivoted and shifted slightly behind the stack ( Figure 6A, 8B).
• the storage surface 11 In the retracted position ( Figure 7 A, 8C), the storage surface 11 is raised to a substantially horizontal position and released from the stack.
• the at least one first or second control profile 15, 18 are for example formed in a groove 19, 20.
• the third portion 18c connects for example the two grooves 19, 20.
• the first control profile 15 may include two stops, for example formed at the two ends of the groove 19 for the two extreme positions: vertical front and retracted.
• the at least one first control profile 15 and the at least one second control profile 18 can be offset laterally. It is intended, for example, to form the control profiles 15, 18 in two grooves 19, 20 of different thicknesses, the first control profile 15 being for example formed in the deepest groove 19 ( Figure 3). This prevents the at least one first follower roller 14 from cooperating with the at least one second control profile 18, in particular when the first follower roller 14 following the first control profile 15 returns from the retracted position and crosses the second control profile 18 to take the withdrawal position.
• the actuating device 12 can also comprise at least one elastic member 21, such as a tension spring, one end 21a of which is fixed, for example fixed to the support 16, and the other end 21b is fixed to the storage surface 11 ( Figure 4).
• the elastic member 21 makes it possible to ensure that the follower rollers 14, 17 always press on the same side of the groove 19, 20 to cooperate with the respective control profile 15, 18.
• the cam means comprise for example two first follower rollers 14, each fixed to a respective end of the storage surface 11 and two first control profiles 15 cooperating with a respective first follower roller 14.
• the cam means may also include two second follower rollers 17 and two second control profiles 18 cooperating with a respective second follower roller 17.
• the second follower rollers 17 are each fixed to a respective end of the storage surface 11 below a first follower roller 14.
• the first control profiles 15 and the second control profiles 18 are for example formed in two supports 16 which are arranged laterally, on each side and at each end of the storage surface 11 ( Figure 2).
• the storage surface 11 is driven for example by means of at least one actuator 22.
• the actuating device 12 comprises for example two actuators 22 each connected to one end of the storage surface 11 ( Figure 2).
• the rod of the at least one actuator 22 is for example connected to an actuation point located on the back of the first follower roller 14 ( Figure 4).
• the at least one actuator 22 comprises a double pneumatic cylinder configured to move the storage surface 11 between the withdrawal position and the vertical front position over a short stroke and to move the storage surface 11 between the position of retraction and the retracted position on a large stroke.
• the storage surface 11 is movable according to the reciprocating movement back and forth between the vertical front position ( Figures 5A, 5B, 8A) and the withdrawal position ( Figures 6A, 6B, 8B) for storing the sheets. one by one after shaping to form a stack.
• the stowage surface 11 is guided on the jogging movement by the reciprocating movement of the first follower rollers 14 against the small portions of the first straight control profiles 15 and of the second follower rollers 17 against the first portions 18a curves of the second control profiles 18.
• the storage surface 11 in the vertical front position, the storage surface 11 is arranged vertically and pushes the sheet to position it in a stack ( Figure 5A, 5B, 8A). In the withdrawn position, the storage surface 11 has pivoted and shifted slightly behind the stack ( Figure 6A, 6B, 8B).
• the first follower rollers 14 continue their movements on the large portions of the first straight control profiles 15 without discontinuity and the second follower rollers 17 continue their movements on the second straight portions 18b of the second control profiles 18.
• the storage surface 11 is thus moved into the retracted position, for example by forming an angle less than 30 ° with the horizontal.
• this retracted position Figure 7 A, 7B, 8C
• the storage surface 11 is raised in the high position, substantially horizontal above the stack.
• the storage surface 11 has pivoted and retreated.
• the retraction of the storage surface 11 away from and above the stack frees up a large access area for taking a control sheet.
• the storage surface 11 is controlled in the withdrawal position.
• the follower rollers 14, 17 then follow the control profiles 15, 18 in the opposite direction.
• the first follower rollers 14 cannot follow the second control profiles 18 when they cross them due to the differences in thickness of the grooves 19, 20.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Pile Receivers (AREA)
• Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
• Lining Or Joining Of Plastics Or The Like (AREA)
• Forming Counted Batches (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=62705357

Family Applications (1)

Country Status (8)

Family Cites Families (20)

• 2019
  • 2019-04-18 TW TW108113593A patent/TWI722416B/zh active
  • 2019-04-25 KR KR1020207036677A patent/KR102276271B1/ko active IP Right Grant
  • 2019-04-25 US US15/733,829 patent/US11795025B2/en active Active
  • 2019-04-25 JP JP2020568957A patent/JP7080998B2/ja active Active
  • 2019-04-25 ES ES19720369T patent/ES2912407T3/es active Active
  • 2019-04-25 EP EP19720369.8A patent/EP3807201B1/de active Active
  • 2019-04-25 CN CN201980039928.1A patent/CN112313164B/zh active Active
  • 2019-04-25 WO PCT/EP2019/025125 patent/WO2019238264A1/fr active Application Filing

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