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
  • B65H3/08—Separating articles from piles using pneumatic force
• • 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
  • B65H3/08—Separating articles from piles using pneumatic force
  • B65H3/0808—Suction grippers

Definitions

• the invention relates to a device with the features of the introductory part of claim 1.
• a device with which plate-shaped objects can be removed from a stack of such objects and placed on a conveyor is known from EP 0 141 806 B.
• the plates in particular plates for batteries and accumulators, are horizontally advanced in a magazine to a removal point, in which a Ent fortunegrei fer is provided with a suction device.
• the removal gripper picks up the foremost plate from the stack of plates and places it on a conveyor belt which is arranged below the level of the lower edges of the plates in the magazine.
• the device known from EP 0 141 806 B is complex in that a complicated movement of the removal gripper is required in order to remove the foremost plate from the stack and place it on the conveyor.
• EP 0 141 806 B also describes a holding device which engages at the top of the second plate of the stack as seen from the removal point and thus prevents more than one plate from being removed.
• the invention is based on the DE 2160765 A, the up would invention to simplify the removal process, so that a simpler movement 'of the removal gripper is possible, without impairing the functional reliability of the device according to the invention for unstacking plate, even if it is is about (lead) plates for batteries and accumulators.
• This object is initially achieved with the features of independent claim 1.
• the foremost plate to be removed is gripped by the removal gripper and erected from its inclined position which it occupies in the horizontal magazine and then simply by further pivoting about a horizontal axis lying in its lower region, preferably at its lower edge downstream conveyor tilted.
• the tilting movement is supported by the feed end of the conveyor.
• the removal gripper detaches from the plate and tilts onto the conveyor, on which it is transported away from the removal point for further handling.
• the difference in the device according to the invention compared to DE-21 60 765 A is that the removal gripper in the device according to the invention detaches from the removed plate, that is, this plate no longer holds as soon as it assumes a position inclined towards the downstream horizontal conveyor, so that the plate simply tips over onto the horizontal conveyor.
• the tilting movement of the plate is supported by the end of the horizontal conveyor on the feed side, because the plate during the linear and
• the lower edge of the removal gripper pivots on the feed end of the horizontal conveyor.
• FIG. 1 is a plan view of FIG. 1
• Fig. 9 is a plan view, partially cut and
• the device shown in FIG. 1 has a horizontal magazine 1, in which plates 2, in particular lead plates for batteries and accumulators, are accommodated next to one another.
• the magazine 1 is laterally delimited by upper guide rails 3 and by lower guide rails 4. Both the lateral distance of the guide rails 3 and 4 lying opposite one another in pairs and the distance between the upper guide rails 3 and the lower guide rails 4 of the magazine 1 can be changed in order to adapt the magazine to different sizes of plates 2.
• the magazine 1 is assigned a device for advancing the stack of plates into a removal part 8.
• This device comprises two pairs of chains 5 on each side of the magazine 1.
• Resilient drivers are provided on the chains 5, which act on the plate stack, as is known per se from EP 0 141 806 B.
• a slide-in carriage 6 is provided which runs on guide rails. Due to the rearward inclined orientation of the push surface of the slide-in carriage 6, the plates 2 are inserted into the magazine 1 with a (slight) inclination. pushed back.
• the magazine 1 which serves as a plate feed device and can otherwise be configured as known from EP 0 141 806 B, feeds the plates 2 to a removal device.
• the magazine 1 described has the advantage that it can be loaded discontinuously with plates 2 even with the continuous removal of plates 2 with the aid of the insertion carriage 6, and that the plates 2 are positioned exactly for removal.
• a removal gripper 10 and a hold-down device 9 are provided, which can have one of the embodiments known from EP 141 806 B, for example.
• the holding-down device 9 serves to hold the second plate 2 following the foremost plate 2 to be removed, while the foremost plate 2 is removed from the magazine 1.
• the holding-down device 9 ensures that the removal gripper 10 only removes the foremost plate 2.
• the hold-down device 9 is suspended from a support 20 in the machine frame in an oscillating manner about an axis 21 and is supported by a weight 22, whose distance from the axis 21 is adjustable, against the front end of the stack of plates in the magazine located in the removal point 8 1 held.
• the plates 2 of the removal point 8 are inclined, e.g. from 5 to 20 °.
• the removal gripper 10 provided at the removal point 8 is designed as a vacuum gripper.
• the removal gripper 10 as will be described later, plates 2 are removed individually from the stack that is accommodated in the magazine 1 and onto a downstream conveyor 11, which is used, for example, as a (wedge) belt conveyor with two (wedge) belts 14 trained, hung up.
• the conveyor 11 can be assigned a station 12 for brushing the flags of the lead plates.
• the lead plates 2 from three rollers (or rollers) 13 are just as firmly on the conveying elements, e.g. the belts 14 of the conveyor 11, pressed so that the forces occurring during brushing are compensated for and the lead plates 2 cannot be twisted.
• the suspension of the rollers 13, which can be pivoted via lever 15, permits the processing of lead plates 2 with different thicknesses without readjustment. Even slightly deformed lead plates 2 (which can occur in the production of lead plates) can be processed without any problems.
• the wire brushes 16, which are preferably driven in the same direction, that is to say with opposite movement on the flags of the lead plates 2, are arranged to be height-adjustable in order to ensure effective cleaning of the flags of the lead plates 2. If the wire brushes 16 do not have the same direction
• the plates 2 are processed e.g. in a pocket and stack machine by a counter roller 18 arranged above the front deflecting roller 17 of the belts 14, moved exactly between two drivers on transport chains of a further conveyor 30.
• the counter roll (or platen) 18 operates like a dancer roll. The precisely defined offset of the axes of the deflection roller 17 and that of the
• Counter roller 18 ensures the required shape and constancy of the insertion parabola of the plates 2 on the conveyor 30.
• the plates 2 should always be stored centrally for further processing, for example in a pocket machine, to the conveyor chains of the conveyor 30. For this reason, the side guide strips 31 and 32 are adjustable. In order to keep the parameters for the insertion parabola constant, the front deflection roller 17 and the counter roller 18 are adjusted together with the guide bar 31. In order to keep the tension of the conveying members, for example the V-belts 14, of the conveyor 11 constant even when the front deflecting roller 17 is adjusted, a pneumatically operated tensioning roller 33 is provided.
• the removal gripper 10 and the conveyor 11 are driven by a shaft 40 and an angular gear 41 from the main drive 42. This ensures synchronicity even when the machine speed is changed.
• the extraction gripper 10 which in the exemplary embodiment shown is equipped as a vacuum gripper with at least one suction head 23, but preferably with two suction heads 23, is pressurized via a line 50.
• the removal of the removal gripper 10 from the receiving position shown in FIG. 3 into the storage position shown in FIG. 4 takes place with the aid of a crank lever drive which is shown in FIGS. 5 to 8.
• the drive for the removal gripper 10 has a crank disk 52 driven by the shaft 40 via a belt 51 with a crank pin 53 to which a connecting rod 54 is coupled, the length of which is adjustable.
• the connecting rod 54 is in turn coupled to a lever 55 which is connected in a rotationally fixed manner to a pivot lever 57 which can be pivoted about an axis 56.
• the pivot lever 57 is pivotally coupled to a support plate 58 for the housing 70 of the removal gripper 10.
• the support plate 58 is guided at a distance from the pivot point of the pivot lever 57 on the support plate 58 via a roller 61 mounted on the support plate 58 in a guide groove 62 in a guide plate 63 which is fastened in the machine frame.
• The, preferably straight, guide groove 62 can - but does not have to - be aligned parallel to the conveyor 11, that is to say generally horizontally.
• the removal gripper 10 with its (two) suction heads 23 is fixedly mounted on the support plate 58.
• the suction heads 23 of the removal gripper 10 are designed so that they can compensate for smaller positioning errors and dimensional deviations of plates 2 (particularly important in the case of lead plates).
• the pivoting movement of the support plate 58 and thus the combined linear and pivoting movement of the removal gripper 10 takes place through the described pivotable connection of the support plate 58 with the pivoting lever 57 and in that the support plate 58 is guided over the roller 61 in the guide groove 62 in the guide plate 63 , so that the support plate 58 is deflected when pivoting.
• the stroke of the removal gripper 10 is predetermined and fixed by the distance of the crank pin 53 from the axis of the crank disk 52 and the length of the lever 55.
• FIG. 5 shows the position of the drive for the removal gripper 10 in the position of the removal gripper 10 according to FIG. 3 (receiving position)
• FIG. 6 shows the position of the drive for the removal gripper 10 in the position according to FIG. 4 (storage position) reproduces.
• a ventilation valve 71 is provided in the housing 70 of the removal gripper 10, which is supplied with negative pressure via the line 50.
• the flap 72 of the valve 71 is connected to a lever 73 which carries a roller 74.
• the roller 74 runs onto a slope 75 of a plate 76 which is adjustably fastened to the plate 63 and opens the flap 72 against the force of an adjustable one by pivoting the lever 73 about the axis 77 Valve spring 78.
• the negative pressure in the housing 70 of the removal gripper 10 breaks down and a plate 2 held by it is released as soon as it forms an acute angle with the conveying plane of the conveyor 11 defined by the belts 14. It is preferred that a plate 2 is released from the removal gripper 10 when it is at an angle of approximately 45 ° to the conveying plane (position A in FIG. 4).
• a device for unstacking plates 2 accommodated in a horizontal magazine 1, in particular lead plates for batteries and accumulators, has a removal gripper 10 equipped with at least one suction head 23.
• the removal gripper 10 detects the foremost plate 2 in the removal position 8 and pulls it from the stack away in magazine 1 and pivots in a pivoting movement about a horizontal axis lying in the lower region of plate 2 in the direction of a conveyor 11 arranged next to magazine 1, the lower region of plate 2 running onto the feed-side end of conveyor 11 and so the plate 2 is pivoted further.
• the removal gripper 10 lets go of the plate 2 and this falls over under its own weight, supported by the movement of the conveyor 11, and is transported away by the latter.
• the conveyor 11 can have facilities 12 for brushing the flags of lead plates.
• a device 18 is provided with which the plates 2 are discharged onto a further conveyor 30 in a precisely aligned manner.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Sheets, Magazines, And Separation Thereof (AREA)
• Specific Conveyance Elements (AREA)
• Chain Conveyers (AREA)
• Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
• Cleaning In General (AREA)
• Secondary Cells (AREA)
• Mechanical Treatment Of Semiconductor (AREA)
• Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=3529899

Family Applications (1)

Country Status (8)

Cited By (2)

Families Citing this family (15)

Family Cites Families (3)

• 1997
  • 1997-12-30 AT AT0220297A patent/AT405824B/de not_active IP Right Cessation
• 1998
  • 1998-12-22 EP EP98962125A patent/EP1044151B1/fr not_active Expired - Lifetime
  • 1998-12-22 ES ES98962125T patent/ES2151471T3/es not_active Expired - Lifetime
  • 1998-12-22 AT AT98962125T patent/ATE212944T1/de not_active IP Right Cessation
  • 1998-12-22 WO PCT/AT1998/000319 patent/WO1999035068A1/fr not_active Application Discontinuation
  • 1998-12-22 DE DE59803046T patent/DE59803046D1/de not_active Expired - Fee Related
  • 1998-12-22 JP JP2000527482A patent/JP2002500147A/ja active Pending
  • 1998-12-22 KR KR1020007003900A patent/KR20010031063A/ko not_active Application Discontinuation
  • 1998-12-22 CN CN98808726A patent/CN1078168C/zh not_active Expired - Fee Related

Non-Patent Citations (1)

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