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
  • B65H3/00—Separating articles from piles
  • B65H3/42—Separating articles from piles by two or more separators mounted for movement with, or relative to, rotary or oscillating bodies
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H1/00—Supports or magazines for piles from which articles are to be separated
  • B65H1/30—Supports or magazines for piles from which articles are to be separated with means for replenishing the pile during continuous separation of articles therefrom
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2406/00—Means using fluid
  • B65H2406/30—Suction means
  • B65H2406/33—Rotary suction means, e.g. roller, cylinder or drum
  • B65H2406/331—Rotary suction means, e.g. roller, cylinder or drum arranged for rotating while moving along material to be handled, e.g. rolling on material
  • B65H2406/3312—Rotary suction means, e.g. roller, cylinder or drum arranged for rotating while moving along material to be handled, e.g. rolling on material arranged for planetary movement on rotary support means

Definitions

• the invention relates to a device for separating stacked flat workpieces according to the preamble of claim 1.
• the stack-receiving stacking cassette is located above the envelope cylinder described by the suction rollers, the stack to be separated being located on the suction rollers and additional support rollers arranged between the suction rollers and having the same envelope cylinder as describe the suction rolls, support them.
• This type of support is necessary in the known rotary feeder so that a lower exposed workpiece can be pulled off the stack from each suction roll.
• Rotary feeders are connected upstream of the sack making floor laying machines. Modern floor-laying machines have a high output, so that the rotary feeders also have to be operated at a higher speed in order to feed the individual hose pieces to the floor-laying machine with a correspondingly increased number of cycles. At higher speeds, however, the stack supported on the suction and back-up rolls of the rotary feeder vibrates so strongly that it is no longer guaranteed that the suction rows of each suction roll suck the lowest hose section safely at its front edge area, so that there is no separation or the piece of hose to be separated is only incompletely and possibly pulled off in an inclined position.
• DE-PS 390 443 a device of the type specified is known which avoids the disadvantage of the device known from DE-PS 12 77 655 in that the stacking cassette is arranged below the supporting structure, so that each row of suction cups has the top exposed one Sucks the workpiece of the stack to separate it.
• DE-PS-390 443 contains no information about the creation of the stacks to be separated.
• the object of the invention is therefore to provide a device according to the preamble of claim 1, which enables the continuous separation of continuously added stacks of flat workpieces.
• the device according to the invention makes it possible to place a new stack to be separated on the respective lower tines of the pair of tines.
• This stack is then raised until it is in abutment with the upper stack in the singulation.
• the tines supporting the upper stack are moved out of the shaft and lowered and retracted into the shaft so that they are ready to receive the next stack.
• the guides carrying the rust-like tines and their drives are expediently arranged on the vertical runs of endless and reversibly driven traction means.
• the stack-aligning vertical sheets are arranged, of which at least two opposite one another are provided with a drive which vibrates them.
• the vibrating metal sheets align the individual workpieces of the stack in a straight line so that the respective upper workpiece can be sucked in the correct position by the continuous suction roll.
• the rotary feeder 1 shown in FIG. 1 consists of a support star 3 rotatably mounted in a machine frame, not shown, about the axis 2 and provided with a rotary drive, not shown, for example consisting of side disks of a web-like support frame, on which eight intermediate wheels 4 are freely rotatably mounted which, on the one hand, mesh with a central wheel 5 fixed to the frame and, on the other hand, with gears 6, which mesh on the shafts of the suction rollers 7, which are freely rotatably mounted in the supporting star 3.
• Each of the suction rolls 7 is Provided along the generatrices with a number of suction cups 8.
• the rotary feeder corresponds to the rotary feeder known from DE-PS 12 77 655, to which reference is made for further illustration.
• a stacking cassette 10 for receiving the stacks 11 to be separated is arranged in the machine frame below the rotary feeder.
• the stacking cassette 10 consists of a stacking shaft, on the sides of which endless traction means are arranged around deflection rollers and driven rollers, on the strands 12, 12 'and 13, 13' facing the stacking shaft, guides 14, 14 'and 15, 15' for the Stacking shaft retractable and extendable rust-like tines 16, 16 'and 17, 17' are held.
• the rust-like tines are provided with drives, not shown, on the basis of which they can be moved into the stacking shaft 10 in the direction of the double arrows A and can be moved out of the latter.
• the dreams of the endless conveying means carrying the guides are reversibly drivable in the direction of the double arrows B, so that the upper stack 11 is raised in accordance with the decrease in the stack height as a result of the separation and the lower stack 11 is placed against the upper stack and the upper rust-like tines downward can be moved to accommodate a new batch to be created.
• lateral vertical plates 20, 21 are arranged, which are set in vibration in the direction of the double arrows C by vibration drives, not shown, so that the ascending stack 11 are aligned straight.
• the support star 3 rotates in the direction of arrow D, while the individual suction rolls are driven in the direction of arrow E.
• the geometrical relationships are so coordinated that the rows of suction cups rotating on cycloids in their reversal points, at which they have approximately zero speed, suck in the workpieces to be separated in the region of their front edges, as is indicated in FIG. 3.
• the workpieces separated by the rotary feeder are transferred by the rotary feeder to the further conveyor 24.
• This consists of a shaft 25 mounted in the machine frame, not shown, which has two suction bores 26, 27 is provided, which are connected to a vacuum source via a rotary feedthrough, not shown.
• rows of suction cups 28, 29 are placed offset from one another by 180 °, the tubes carrying the suction cups being connected to the suction bores 26, 27.
• the shaft 25 is driven via a belt 30 by a servo motor 31 whose speed can be controlled.
• Pulleys 32 are freely rotatably mounted on the shaft 25, over which the endless belts 33 of the upper part of a double belt conveyor run, which interact with the belts 34 of the lower part of the double belt conveyor.
• the servo motor 31 controls the shaft 25 in such a way that the suction rows 28, 29 remove the individual workpieces from the suction rolls 7 of the rotary feeder 1 at times in which the suction rows 8 in the reversal points of the cycloid on which they revolve, just about that Have zero speed. In this way, the workpieces can be removed from the suction rolls at approximately zero speed, so that a bumpless transfer is guaranteed.
• the servo motor 31 accelerates the shaft 25 from standstill to the rotational speed of the double conveyor belt, so that the workpieces can be taken along in the correct position and without acceleration by the double belt conveyor.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Sheets, Magazines, And Separation Thereof (AREA)
• Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
• Delivering By Means Of Belts And Rollers (AREA)
• Combined Means For Separation Of Solids (AREA)
• Advancing Webs (AREA)

Applications Claiming Priority (2)

Publications (3)

Family

ID=7785391

Family Applications (1)

Country Status (10)

Families Citing this family (20)

Family Cites Families (19)

• 1996
  • 1996-02-14 DE DE19605461A patent/DE19605461C2/de not_active Expired - Fee Related
  • 1996-12-19 EP EP96120471A patent/EP0790203B1/de not_active Expired - Lifetime
  • 1996-12-19 AT AT96120471T patent/ATE191424T1/de not_active IP Right Cessation
  • 1996-12-19 ES ES96120471T patent/ES2144197T3/es not_active Expired - Lifetime
  • 1996-12-19 DE DE59604886T patent/DE59604886D1/de not_active Expired - Fee Related
• 1997
  • 1997-01-08 CZ CZ9759A patent/CZ5997A3/cs unknown
  • 1997-01-30 TW TW086101037A patent/TW330190B/zh active
  • 1997-02-12 US US08/797,953 patent/US5857829A/en not_active Expired - Fee Related
  • 1997-02-13 JP JP9029351A patent/JPH09226958A/ja active Pending
  • 1997-02-13 BR BR9700951A patent/BR9700951A/pt not_active IP Right Cessation
  • 1997-02-14 CN CN97101886A patent/CN1079362C/zh not_active Expired - Fee Related

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