EP2070691A2 - Müllverdichter - Google Patents

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Publication number
EP2070691A2
EP2070691A2 EP08159277A EP08159277A EP2070691A2 EP 2070691 A2 EP2070691 A2 EP 2070691A2 EP 08159277 A EP08159277 A EP 08159277A EP 08159277 A EP08159277 A EP 08159277A EP 2070691 A2 EP2070691 A2 EP 2070691A2
Authority
EP
European Patent Office
Prior art keywords
trapdoor
press plates
waste
domestic waste
compactor
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.)
Withdrawn
Application number
EP08159277A
Other languages
English (en)
French (fr)
Other versions
EP2070691A3 (de
Inventor
Mr. Robert John Lockwood
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LOCKWOOD MR ROBERT JOHN
Original Assignee
LOCKWOOD MR ROBERT JOHN
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LOCKWOOD MR ROBERT JOHN filed Critical LOCKWOOD MR ROBERT JOHN
Publication of EP2070691A2 publication Critical patent/EP2070691A2/de
Publication of EP2070691A3 publication Critical patent/EP2070691A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/32—Presses specially adapted for particular purposes for consolidating scrap metal or for compacting used cars
    • B30B9/321—Presses specially adapted for particular purposes for consolidating scrap metal or for compacting used cars for consolidating empty containers, e.g. cans
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/32—Discharging presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/08—Accessory tools, e.g. knives; Mountings therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/30—Presses specially adapted for particular purposes for baling; Compression boxes therefor
    • B30B9/3003—Details
    • B30B9/3021—Press rams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/30—Presses specially adapted for particular purposes for baling; Compression boxes therefor
    • B30B9/3057—Fluid-driven presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B7/00—Presses characterised by a particular arrangement of the pressing members
    • B30B7/04—Presses characterised by a particular arrangement of the pressing members wherein pressing is effected in different directions simultaneously or in turn

Definitions

  • This invention relates to a waste compactor and in particular, but not exclusively, to a waste compactor suitable for use in compacting waste domestic containers, cartons, cans, packaging and the like, hereinafter referred to as "domestic waste”.
  • Domestic waste compactors are used to break up and compact various emptied containers and packaging materials, including containers of paper, plastics, glass and metal to facilitate the storage and transport of the used containers for recycling or disposal, without wasting space.
  • compactors for use with domestic waste are known, mostly these are relatively large and unsuitable for use with small volumes of containers, such as may be found in a domestic environment or in the catering trade, hotels and the like.
  • EP1745921 shows a domestic waste compactor which has a press plate operated by ram acting through a lazy-tong mechanism, positioned above a container for storing crushed waste.
  • the ram is arranged to force the press plate down into the container to crush domestic waste placed therein.
  • This arrangement has the drawback that only a limited force can be exerted on the waste without damaging the container but in any event the mechanical advantage of the lazy-tong mechanism is somewhat limited and so the crushing power may not be able to deal with glass bottles.
  • US5778773 describes a can crusher having a vice with a fixed anvil and a sliding element driven by a rack and pinion, the pinion being turned by a manual lever affixed thereto.
  • a trapdoor is arranged below the vice and is spring loaded to the closed position but is opened on operation of the lever. The vice is able to crush only a single can in one cycle and in the event of incomplete crushing of a can or the can becoming distorted, closing of the trapdoor under the spring force may be blocked so preventing further operation of the crusher.
  • This invention aims at providing a domestic waste compactor that is capable of producing a high compressive force within a limited volume. According to the present invention there is provided a domestic waste compactor comprising:
  • waste to be compacted is inserted into the waste compaction region and then the press plates are driven closer together.
  • the trapdoor opens to allow the compacted waste to be released on subsequent separation of the press plates, so allowing the waste to fall into the receiving space for subsequent removal.
  • the power drive means should be sufficiently powerful to ensure the press plates move closer than a pre-determined spacing (typically about 30mm for the compaction of domestic waste) so that the trapdoor operating mechanism may effect opening of the trapdoor. Subsequently the press plates are returned to their initial, furthest-apart position and in the course of this, the operating mechanism closes the trapdoor.
  • the power drive means comprises hydraulic rams together with an electric motor-driven hydraulic pump and control gear for the rams and motor.
  • each plate has a single hydraulic ram associated therewith, disposed to act substantially centrally on the plate. The two press plates are forced towards the centre of the compaction region by the hydraulic rams to compact any waste therebetween. If required, and particularly on larger domestic waste compactors, each plate may have two or more rams associated therewith.
  • Pressure sensors may be provided for the hydraulic pressure applied to the rams.
  • the press plates are driven closer together by the rams until a pre-set pressure threshold is reached, whereat the operation of the rams is reversed so as to return the press plates to their initial furthest-apart position.
  • Further pressure sensors may detect that the press plates have reached their furthest-apart position and the waste compactor ceases operation, though this function could be performed by limit switches associated with the movement of the press plates.
  • the pre-set pressure threshold is adjustable to suit the intended use of the compactor.
  • the invention incorporates an operating mechanism to open and close the trapdoor with the action of the press plates.
  • a single trapdoor is provided which is hinged beneath the compaction region to allow waste to fall into the receiving space, when open and the waste is no longer gripped by the press plates.
  • the trapdoor is hinged to the lower edge of one of the press plates.
  • the trapdoor may open by pivoting under gravity about the hinge so as to allow the contents of the compaction region fall into the receiving space.
  • the trapdoor operating mechanism is arranged to allow the trapdoor to hinge under gravity to its open position once the press plates have moved towards each other so that there is a pre-determined spacing between the press plates, and then on returning the press plates to their furthest-apart setting, the trapdoor is raised back to its closed position.
  • the mechanism includes a trapdoor support positioned lower than the trapdoor hinge and arranged so that when the press plates move towards their furthest spacing the trapdoor is raised by the support to its closed position.
  • the support comprises a bar arranged parallel with the lower edge of the press plate carrying the trapdoor, that bar being furnished with a pair of rollers so that the edge margins of the trapdoor will run on the rollers for the initial part of a cycle of operation until the hinge passes over the rollers, and also the last part of a cycle of operation.
  • the housing carries a pair of further rollers also arranged to support the edge margins of the trapdoor until the press plates reach said pre-determined spacing as discussed above.
  • Those edge margins are provided with respective notches sufficiently large for the further rollers to pass therethrough so that on reaching the pre-determined spacing, the trapdoor no longer is supported by the further rollers and so may swing under gravity to its open position.
  • the operating mechanism may employ alternative means to effect the opening and closing of the trapdoor, such as a catch and release mechanism.
  • the compaction region is preferably substantially cuboidal, comprising two fixed side walls between which the press plates slide.
  • a lid may be provided for the compaction region, and the trapdoor, when in its closed position, forms a base for said compaction region.
  • the press plates are preferably maintained substantially parallel during a compaction cycle, for example by means of one, but preferably two, guide rods associated with each press plate. Further, each press plate is provided with at least one guide pin slidably connected to the housing to restrain turning movement of the press plate. Each press plate may be provided with two pairs of vertically spaced guide pins, mounted towards the top and bottom of each side of the press plate, the guide pins extending into parallel grooves or slots in the side walls of the compaction region.
  • crushing blades are attached to the compacting surface of each press plate, which serve to break up or at least puncture plastic bottles and prevent this problem.
  • the crushing blades may also assist in the compaction of other waste and also the breakage of glass bottles.
  • the crushing blades may become worn or broken, so it is preferred that the blades are replaceable.
  • the crushing surface may be provided with grooves in which the blades locate, although alternative means for replacing the crushing blades may be provided.
  • the receiving space is a separate chamber within the housing with a hinged door to access the interior thereof.
  • the door may have a safety switch so that the waste compactor will not operate if that door is open.
  • a removable container is located in the receiving space to collect the compacted waste and a key-lock is mounted in the door to prevent unauthorised opening.
  • the compaction region is preferably accessed from above, through an opening having a lid. That lid conveniently is slidable between open and closed positions and may be associated with a switch, so that the waste compactor operates automatically once the lid has been closed, but will not operate if the lid is not fully closed.
  • waste compactor 10 has a housing which comprises a front wall 11, a rear wall 12, side walls 13,14, a base 15 and a top panel 16. Internally, the waste compactor 10 is divided into a waste compaction region 17, in which waste domestic containers such as cans and bottles are compacted, and a waste receiving space 18 below the compaction region 17 and into which the compacted waste is deposited.
  • the compaction region 17 is defined by an internal front wall 20, an internal rear wall 21 and opposed internal side walls 22,23.
  • a pair of opposed press plates 24,25 are slidably mounted on the internal side walls 22,23 by means of pins 26 projecting laterally from the press plates and received in elongate slots (not shown) formed in the internal front and rear walls 20,21, there being two vertically spaced pins 26 on each side edge of each press plate.
  • a cover for the compaction region comprises two doors 27,28 slidably mounted to the underside of the top panel 16, though a single sliding door could instead be provided, and may be transparent to allow observation of the operation.
  • the compaction region 17 and the receiving space 18 are separated by a resiliently flexible trapdoor 29 (for example, of stainless steel), which is pivotally attached to the lower edge of press plate 24 by a hinge 30.
  • a resiliently flexible trapdoor 29 for example, of stainless steel
  • the press plates 24,25 are separated as shown in Figure 1 and the sliding doors 27,28 are open, waste containers and the like may be deposited into the waste compaction region 17, the waste being retained in that region 17 by the trapdoor 29.
  • the press plates 24,25 are provided with respective hydraulic rams 32,33 mounted on the housing side walls 12,13 and internal side walls 22,23, each ram acting essentially centrally on the associated press plates 24,25.
  • Hydraulic fluid under pressure to drive the rams 32,33 is supplied through pipes 34,35 respectively from an electric motor driven pump 36 mounted on the base 15.
  • Motion of each press plate 24,25 is controlled by a pair of guide rods 37 connected to the press plates adjacent their side edges and slidably mounted in sleeves 38 supported by the side walls 13,14 and internal side walls 22,23 respectively.
  • the guide rods 37 together with the pins 26 received in the slots in the front and rear walls 20,21 serve to restrict turning movement of the press plates 24,25 relative to the housing and assist the linear sliding movement of the plates under the action of the rams 32,33 when waste is being compacted.
  • each press plate 24,25 carries a plurality of removable crushing blades 39, and in this embodiment there are five such blades on each press plate.
  • These crushing blades 39 assist the breaking or puncturing of waste containers such as plastic bottles and may be replaced when worn or if broken.
  • Each blade is of triangular cross-sectional shape and is received in a correspondingly-shaped slot in the press plates 24,25, closed at its lower end to prevent a received blade falling out of the slot but permitting removal of the blade by upward sliding movement.
  • a mechanism is provided to control movement of the trapdoor 29 during operation of the waste compactor, so that the trapdoor remains closed as the press plates 24,25 are moved towards each other until there is a pre-determined spacing therebetween, the mechanism subsequently closing the trapdoor on separating the press plates once more.
  • the mechanism includes a bar 41 mounted in and extending between the internal front and rear walls 20,21, transversely to the line of movement of the press plates.
  • the bar 41 carries a pair of rollers 42 adjacent the front and rear walls, the side edges of the trapdoor running on those rollers for an initial and final stage of a cycle of operation, as will be described below.
  • the internal front and rear walls 20,21 also carry a pair of further rollers 43, spaced from bar 41 and disposed below press plate 25 when in its fully retracted position, as shown in Figure 1 .
  • the side edges of the trapdoor 29 run on these further rollers 43 for part of the cycle of operation of the compactor.
  • the opposed side edges of the trapdoor are provided with central notches 44 and end notches 45, the notches 44 and 45 being slightly larger than the diameter of the further rollers 43 so that those rollers may pass through the notches.
  • the rams 32,33 are supplied with hydraulic fluid under pressure so as to move the press plates 24,25 closer together from the initial position shown in Figure 1 .
  • the trapdoor 29 is for the initial stage of movement supported horizontally by the hinge 30 and rollers 42 on bar 41, until the end notches 45 have passed over the further rollers 43.
  • the trapdoor is then supported by those further rollers 43 as well as the rollers 42 until press plate 24 passes over rollers 42 on bar 41; thereafter, the trapdoor is supported solely by hinge 30 and further rollers 43.
  • Continued movement of the press plates closer together eventually brings the central notches 44 into alignment with the rollers 43 such that the trapdoor may swing downwardly under gravity to the position shown in Figure 2 , the further rollers 43 passing through the central notches 44.
  • the arrangement should be such that this occurs with a spacing of approximately 30mm between the press plates 24,25.
  • the relative disposition of the rollers 42 on bar 41 and hinge 30 on press plate 24 may be such that in the position of Figure 1 where the press plates have their maximum separation, the trapdoor is given a slight convex shape (from above) by virtue of the engagement of the further end of the trapdoor with the lower edge of the press plate 25. This will ensure that in the event relatively heavy waste is placed on the trapdoor, it will not be flexed downwardly and so the side edges will still run on to the upper surfaces of the further rollers 43 during the initial closing movement of the press plates 24,25.
  • the receiving space 18 beneath the compaction region 17 is defined by the housing front wall 11, rear wall 12, side walls 13,14 and an internal base 46. Upstanding from the internal base 46 are runners 47 for a removable container (not shown) for compacted waste.
  • the receiving space 18 is accessed through a hinged door 48, as shown in Figure 6 , provided with a key-lock to prevent unauthorised opening.
  • a low-voltage electric motor 50 ( Figure 8 ) drives pump 36, the motor, pump and reservoir for hydraulic fluid being located in the space between base 15 and internal base 46.
  • the motor 50 is supplied with power by a control circuit 51 which receives inputs from various switches and sensors. These include an input 52 from a main on/off switch, an input 53 from magnetic switches provided in association with the sliding doors 27,28, an input 54 from a switch provided in association with receiving space door 48 and an input 55 from a sensor for hydraulic fluid pressure supplied to the rams.
  • the control circuit operates a valve 56 which controls the supply of hydraulic fluid under pressure from the pump 36 to the rams 32,33 so as thereby to cause compacting movement of the press plates or withdrawing movement thereof following compaction of waste.
  • the magnetic switches associated with the sliding doors 27,28 and also the switch associated with the hinged door 48 serve to inhibit operation of the motor 50 other than when the doors are fully closed, so closing off the compaction region 17 and the waste receiving space 18.
  • the pressure sensors provided in association with the hydraulic rams 32,33 serve to prevent continued driving of the rams once the pressure rises to a pre-set threshold.
  • FIG. 1 The initial setting of the waste compactor 10 is shown in Figure 1 .
  • the press plates 24,25 are fully retracted, the trapdoor 29 is in its raised (closed) position and the doors 27,28 are slid apart to give access to the waste compaction region 17. Waste is placed into the compaction region 17 and then the doors 27,28 are slid closed.
  • the magnetic switch associated with those doors is automatically operated, so allowing operation of the motor 50 so long as the other inputs to the control circuit are in the appropriate settings.
  • the pump 36 supplies hydraulic fluid under pressure to the rams and the compacting process begins.
  • the press plates are moved closer together under the action of the hydraulic rams 32,33 until pressure of the hydraulic fluid supplied to the rams reaches the threshold value, typically of 100Bar.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Refuse Collection And Transfer (AREA)
  • Processing Of Solid Wastes (AREA)
EP08159277A 2007-12-13 2008-06-27 Müllverdichter Withdrawn EP2070691A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0724314.0A GB2455544B (en) 2007-12-13 2007-12-13 Waste compactor

Publications (2)

Publication Number Publication Date
EP2070691A2 true EP2070691A2 (de) 2009-06-17
EP2070691A3 EP2070691A3 (de) 2010-07-21

Family

ID=39016521

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08159277A Withdrawn EP2070691A3 (de) 2007-12-13 2008-06-27 Müllverdichter

Country Status (2)

Country Link
EP (1) EP2070691A3 (de)
GB (1) GB2455544B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011001983U1 (de) 2011-01-26 2011-03-24 Venoplas S.A. Papierabfallpresse
EP2724781A1 (de) * 2008-09-25 2014-04-30 ATOP S.p.A. Verfahren und Vorrichtung zum Verdichten von Behälter
CN112173506A (zh) * 2020-11-03 2021-01-05 常德湘沅实业有限公司 基于多辊轴破碎压缩的户外环卫垃圾车
CN115651819A (zh) * 2022-09-20 2023-01-31 杭州准芯生物技术有限公司 一种试剂盒用自适应顶压组件及检测装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107791564B (zh) * 2017-11-21 2019-03-08 阜南华翔羊毛衫有限公司 一种多角度羊毛压实装置
CN112756665A (zh) * 2020-12-08 2021-05-07 郭琪 一种安全性能高、集成化程度高的数控机床

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5778773A (en) 1997-04-03 1998-07-14 Clark; Carolyn M. Tidy can keeper
EP1745921A1 (de) 2005-07-21 2007-01-24 Brevetti industriali di Calgaro Silvia Struktur einer Haushalts-Abfallverdichtungsvorrichtung

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
GB1384080A (en) * 1971-11-13 1975-02-19 Davis Ind Equipment Ltd Pressing and baling apparatus
JPS6149800A (ja) * 1984-08-20 1986-03-11 Nitto Zoki Kk 空き罐のプレス処理装置
DE8608743U1 (de) * 1986-04-01 1986-05-15 Schweikardt, Helmut, 7321 Hattenhofen Dosensammelvorrichtung
US5279215A (en) * 1991-12-05 1994-01-18 Harder Willard J Machine for crushing oil filters
JPH0825075B2 (ja) * 1992-07-13 1996-03-13 高砂電器産業株式会社 空き缶圧縮処理装置
JPH0924495A (ja) * 1995-07-10 1997-01-28 Kyoei Hatsujo Kogyo Kk 合成樹脂製ボトルの押し潰し装置
FR2841483A1 (fr) * 2002-07-01 2004-01-02 Gate For Innovation Destructeur/compacteur individuel de papier
DE10348009B4 (de) * 2003-10-15 2006-03-16 Gabor Jakab Rücknahmeautomat
ITPI20050034A1 (it) * 2005-03-29 2006-09-30 Marco Santandrea Unita' di compattazione dei rifiuti

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5778773A (en) 1997-04-03 1998-07-14 Clark; Carolyn M. Tidy can keeper
EP1745921A1 (de) 2005-07-21 2007-01-24 Brevetti industriali di Calgaro Silvia Struktur einer Haushalts-Abfallverdichtungsvorrichtung

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2724781A1 (de) * 2008-09-25 2014-04-30 ATOP S.p.A. Verfahren und Vorrichtung zum Verdichten von Behälter
US10105922B2 (en) 2008-09-25 2018-10-23 Atop S.P.A. Apparatus for compacting waste objects
US20190255793A1 (en) * 2008-09-25 2019-08-22 Atop S.P.A. Apparatus for compacting waste objects
US10864695B2 (en) 2008-09-25 2020-12-15 ATOP S.p.A. , Barberino Val d'Elsa, Italy Apparatus for compacting waste objects
DE202011001983U1 (de) 2011-01-26 2011-03-24 Venoplas S.A. Papierabfallpresse
CN112173506A (zh) * 2020-11-03 2021-01-05 常德湘沅实业有限公司 基于多辊轴破碎压缩的户外环卫垃圾车
CN112173506B (zh) * 2020-11-03 2022-03-18 常德湘沅实业有限公司 基于多辊轴破碎压缩的户外环卫垃圾车
CN115651819A (zh) * 2022-09-20 2023-01-31 杭州准芯生物技术有限公司 一种试剂盒用自适应顶压组件及检测装置
CN115651819B (zh) * 2022-09-20 2024-05-17 杭州准芯生物技术有限公司 一种试剂盒用自适应顶压组件及检测装置

Also Published As

Publication number Publication date
GB2455544B (en) 2012-06-27
EP2070691A3 (de) 2010-07-21
GB2455544A (en) 2009-06-17
GB0724314D0 (en) 2008-01-23

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