WO2016074009A1 - Spirale de transport sans fin - Google Patents

Spirale de transport sans fin Download PDF

Info

Publication number
WO2016074009A1
WO2016074009A1 PCT/AT2015/050285 AT2015050285W WO2016074009A1 WO 2016074009 A1 WO2016074009 A1 WO 2016074009A1 AT 2015050285 W AT2015050285 W AT 2015050285W WO 2016074009 A1 WO2016074009 A1 WO 2016074009A1
Authority
WO
WIPO (PCT)
Prior art keywords
spiral
conveyor
plastic
plastic body
conveyor spiral
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.)
Ceased
Application number
PCT/AT2015/050285
Other languages
German (de)
English (en)
Inventor
Peter Eckerstorfer
Bernhard RADINGER
Kurt HUMENBERGER
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.)
Rochling Leripa Papertech & Co KG GmbH
Original Assignee
Rochling Leripa Papertech & Co KG GmbH
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 Rochling Leripa Papertech & Co KG GmbH filed Critical Rochling Leripa Papertech & Co KG GmbH
Publication of WO2016074009A1 publication Critical patent/WO2016074009A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G33/00—Screw or rotary spiral conveyors
    • B65G33/24—Details
    • B65G33/26—Screws
    • B65G33/265—Screws with a continuous helical surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G33/00—Screw or rotary spiral conveyors
    • B65G33/08—Screw or rotary spiral conveyors for fluent solid materials
    • B65G33/14—Screw or rotary spiral conveyors for fluent solid materials comprising a screw or screws enclosed in a tubular housing
    • B65G33/16—Screw or rotary spiral conveyors for fluent solid materials comprising a screw or screws enclosed in a tubular housing with flexible screws operating in flexible tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G33/00—Screw or rotary spiral conveyors
    • B65G33/24—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/04—Bulk
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2207/00—Indexing codes relating to constructional details, configuration and additional features of a handling device, e.g. Conveyors
    • B65G2207/30—Modular constructions

Definitions

  • the invention relates to a conveyor spiral made of plastic with a core of stiffer material.
  • a conveyor spiral is also called, for example
  • Spiral screw conveyor or shaft, soul or shaftless screw conveyor and occasionally also referred to as spiral conveyor Spiral screw conveyor or shaft, soul or shaftless screw conveyor and occasionally also referred to as spiral conveyor.
  • a screw conveyor or a screw conveyor is a spiral or spiral which winds around a core, axle or shaft and is fixedly connected to it.
  • the US 3280963 A shows a screw conveyor made of plastic, in which case the helix and the shaft are made separately, so that the pitch of the helix can be adapted to the respective requirements.
  • the shaft is provided with a groove which winds around the shaft at the desired pitch.
  • a plastic tube is cut in a spiral and guided by the groove over the helix.
  • the coil is connected to the shaft at least at both ends, for example screwed or welded.
  • Plastic snail so a conveyor spiral is heavily loaded with tensile and compressive forces, which would lead to creep especially when only mounted at one end plastic spiral conveyor, which would cause the conveyor spiral during operation undergoes an undesirable change in shape, in particular a permanent change in length.
  • DE 102009045983 AI shows a conveyor spiral which is made of plastic, which consists of many non-positively or positively connected segments.
  • the disadvantage is that the segments are produced in a negative mold, so that for each outer or inner diameter, pitch, blade thickness and pitch a separate negative mold must be made.
  • the segments must have a high sheet thickness in order to accommodate the fasteners between the segments and to equip the conveyor spiral with sufficient rigidity to withstand the stress can, even if it consists of fiber-reinforced plastic.
  • the plastic itself must be made relatively stiff, which means a limitation in the choice of material.
  • a spiral conveyor which is formed from a metal spring with a rectangular cross section, which has a coating with Teflon.
  • the Teflon coating as well as a coating with paint has the disadvantage that it is very thin, thus hardly any weight savings compared to uncoated metal conveyor spirals can be achieved and only a thin layer of wear is applied by the coating.
  • the object underlying the invention is to provide a conveyor spiral made of plastic, which holds loads better state, simpler and more flexible in use than the known from DE 102009045983 AI conveyor spiral made of plastic segments.
  • Ve stiffing element acts, or a coating formed by applying is no plastic body in the sense of the subject invention.
  • Plastic body is therefore present in a thickness or thickness, so that this is present without the stiffening element as an independent body, which is not the case with a coating.
  • the cross-sectional area of the plastic body is greater than the cross-sectional area of the reinforcing element, what in any case not given in coated Metall Cleanspiralen.
  • the main advantage of the present conveyor spiral lies in the fact that the plastic body of the spiral spiral can have almost any cross-section, or can be formed from almost any plastic, since the mechanical stability improved by the stiffening element, or by dimensioning and choice of material of the stiffening element or . is specifiable.
  • the material and the shape of the plastic body can thus be matched exactly to the intended use of the conveyor spiral, without being limited by the low mechanical stability of the plastic.
  • the stiffening element is formed from a plastically deformable material, thereby advantageously achieving that the pitch of the conveyor spiral can be adjusted by "pulling in the length" within a certain range.
  • the conveyor coil is first made with a pitch less than or equal to 0.5 times the diameter and subsequently into the desired length or up to the desired pitch by applying a force deformed, wherein the conveyor spiral retains the desired length after removal of the force.
  • the stiffening element may be made of any rigid material, in particular of metal, for example steel, a rigid plastic, for example a fiber-reinforced plastic or a duroplastic. If the stiffening material does not consist of metal, then a metal-free screw conveyor can be produced which, according to the invention, can advantageously be used in combination with a metal detector.
  • the plastic body may be made of any plastic, such as a thermoplastic material or an elastomer.
  • the plastic body consists of a wear-resistant, in particular highly wear-resistant plastic.
  • the representational conveyor spiral can be produced with almost any diameter, and conveyor coils with a diameter of 1-2 meters are conceivable.
  • the length of the conveyor spiral can also be produced in any length, and for the production of very long conveyor spirals, a plurality of shorter conveyor spirals can be connected to each other.
  • Fig. 1 shows an exemplary inventive
  • Fig. 2 shows an exemplary conveyor spiral according to the invention with representation of the non-visible edges.
  • Fig. 3 shows an exemplary conveyor spiral according to the invention in a tube.
  • FIG. 4 shows an exemplary flexurally flexible conveyor spiral according to the invention in a bent tube.
  • Fig. 5 shows an exemplary inventive
  • Fig. 6 shows the cross section of an exemplary conveyor spiral according to the invention with brush insert.
  • Fig. 7 shows the cross section of an exemplary conveyor spiral according to the invention with two
  • FIG. 2 shows an exemplary conveying spiral 1 according to the invention, FIG. 2 merely serving to illustrate that the stiffening element 3 preferably extends over the entire length of the plastic body 2 of the conveying spiral 1.
  • the illustrated conveyor spiral 1 may for example have a diameter of about 20 cm, a pitch of about 10 cm and a length of about 40 cm.
  • the blade height is for example about 6 cm and the inner diameter about 8 cm.
  • the thickness of the plastic body 2 is for example about 20 mm
  • the thickness of the stiffening element 3 is for example about 5 mm.
  • the blade height of the stiffening element 3 is for example about 20 mm.
  • the cross-sectional area of the sheet of the conveyor spiral 1 is, for example, about 1200 mm 2 , wherein the cross-sectional area of the plastic body 2 is about 1100 mm 2 and the cross-sectional area of the stiffening element 3 is about 100 mm 2 .
  • This is a purely exemplary dimensioning.
  • the conveyor spiral 1 according to the invention can be present in virtually any desired dimensioning and can be produced thereby and by the large number of usable materials with a very wide spectrum of properties.
  • the proportion of the cross-sectional area of the plastic body 2 on the sheet of the conveyor spiral 1 is preferably higher than that of the stiffening element 3, preferably at least twice as high, more preferably at least four times or in particular at least eight times higher.
  • the sheet thickness of the plastic body 2 is at least 1.5 times the thickness or sheet thickness of Stiffening element 3.
  • the blade height of the plastic body 2 is at least 1.5 times the height or blade height of the stiffening element. 3
  • the stiffening element 3 is formed of a material having a high modulus of elasticity (Young's modulus). If the stiffening element 3 is made of steel, for example, it has an E-modulus of approximately 200,000 N / mm 2 .
  • the stiffening element 3 may also consist of a duroplastic, which typically have an E-modulus of 15,000 - 25,000 N / mm 2 . If the stiffening element 3 consists of fiber-reinforced plastic, a quasi-isotropic modulus of about 20,000-85,000 N / mm 2 can be achieved, the unidirectional modulus of elasticity of reinforced plastics can, for example, also be up to 240,000 N / mm 2 .
  • the stiffening element 3 preferably has an E-modulus of at least 2,000 N / mm 2 .
  • the material of the plastic body 2 has a lower modulus of elasticity than the stiffening element 3, for example, can be selected as the material of ultra-high molecular weight polyethylene, which has an E-modulus of up to about 1000 N / mm 2 , typically about 800 N / mm 2 .
  • the plastic body 2 preferably has an E-modulus of less than 10,000 N / mm 2 .
  • the material of the plastic body 2 in this case has properties which are clearly advantageous over the material of the stiffening element 3 for producing a conveyor spiral 1, in particular better wear and sliding properties, no water absorption or swelling, no corrosion, good weather and UV resistance, low temperature resistance, no Anchors in the freezing area, dirt-repellent, sound-absorbing and due to the lower hardness, or the lower modulus of elasticity gently to the transported material.
  • the plastic of the plastic body 2 is for example a thermoplastic such as polyethylene (PE) in particular UHMW-PE, polyamide (PA), polyacetal (POM), polyethylene terephthalate (PET), polypropylene (PP), polytetrafluoroethylene (PTFE), polyether ketone (PEEK), or an elastomer such as rubber or hard rubber.
  • PE polyethylene
  • PA polyamide
  • POM polyacetal
  • PET polyethylene terephthalate
  • PP polypropylene
  • PTFE polytetrafluoroethylene
  • PEEK polyether ketone
  • an elastomer such as rubber or hard rubber.
  • the plastic body 2 and the stiffening element 3 have, for example, a rectangular cross-section.
  • the plastic body 2 may have any desired, that is to say a cross-sectional shape which is independent of the stiffening element 3.
  • the plastic body 2 or the stiffening element 3 may for example also be round, oval, trapezoidal, parallelogrammic or triangular, or polygonal.
  • the stiffening element 3 is preferably spaced apart from all the side surfaces of the plastic body 2 embedded therein, wherein the distance to the outer surface 2.1 of the plastic body 2 is preferably greater than that to the inner lateral surface 2.2 of the plastic body 2.
  • the distance of the stiffening element 3 to each of the lateral surfaces of the Kunststoffsto fitess 2 is at least 2.5 mm.
  • the conveyor coil 1 is mounted, for example, in a pipe 4 or a trough to form a spiral conveyor.
  • the tube 4 and the trough is usually completely filled with the material to be delivered.
  • the spiral conveyor can convey at any angle from horizontal to vertical.
  • the conveying spiral 1 can also be mounted in a pipe 4, which has a curved course.
  • the conveyor spiral 1 is a flexible conveyor spiral, which is dimensioned so thin-walled that it can bend and thus follow the arcs of the tube 4.
  • Such flexurally flexible conveyor spiral 1 in weight-saving Plastic design is particularly advantageous because the previously flexible bend-flexible spirals are all made of metal.
  • the conveying spiral 1 according to the invention can also be pushed over a shaft 5.
  • the conveyor spiral 1 can rotate about the shaft 5 or connected to the shaft 5, in particular screwed or glued or welded.
  • the conveyor spiral 1 according to the invention can therefore also be used as a spiral of a screw conveyor, with the advantage over the prior art that the plastic coil according to the invention is a dimensionally stable body, thus can be used without shaft 5, or the inventive plastic spiral mechanically robust is known as a plastic turnaround.
  • the shaft 5 can be selectively inserted in a conveyor in the conveyor spiral 1, so depending on the respective good to be transported, the operation of a
  • an insert may be provided, which forms the outer lateral surface 2.1 or a portion of this.
  • This insert is as shown for example a brush 2.3.
  • a brush 2.3 is advantageous, for example, in the transport of fine powdery materials, as they are stripped off by the brush 2.3 from the inner circumferential surface of the tube 4.
  • the insert may be screwed, glued or welded, for example, with the plastic body 2 and may also form the outer surface 2.1 entirely.
  • a plurality of stiffening elements 3 can be embedded in the plastic body 2, wherein the cross-sectional areas and / or the materials of
  • Stiffening elements 3 may be different.
  • the plastic body 2 and the stiffening element 3 are manufactured and connected to each other by known methods in the production of the conveyor spiral 1.
  • the production of the plastic body 2 for example, by casting, sintering, extrusion and optionally following reshaping or machining done.
  • the reinforcing element may also be made by casting, sintering, extruding, autoclaving, and optionally subsequent forming or machining.
  • the reinforcing element is formed by a metal rod is bent helically.
  • the invention Förde spiral 1 is produced by the reinforcing element 3 is inserted into a recess of the plastic body 2, so that the reinforcing element 3 is enclosed in the plastic body 2.
  • the plastic body 2 can receive the recess already in the original molding, or be provided by machining with the recess thereafter.
  • the reinforcing element is located in the vicinity of the lower lateral surface 2.2 of the plastic body 2, as shown in Fig. 6.
  • one end of the conveyor spiral 1 is connected to the rotor of a motor, wherein the rotor of the motor is preferably connected via a suitable connector form fit with the stiffening element 3, in particular screwed so that the torque of the motor transmitted directly to the stiffening element 3 becomes.
  • the second end of the conveyor spiral 1 usually has no special bearing, so that the conveyor spiral 1 rests with the outer surface 2.1 of the plastic body 2 in the tube 4, or in the trough.
  • Long conveyor spirals 1 can be composed of several shorter conveyor spirals 1.
  • Conveying spirals 1 preferably positively or materially connected to each other, so that the torque through the stiffening elements 3 is transmitted.
  • the plastic body 2 may be welded together.
  • a long conveyor coil 1 is composed of a plurality of plastic bodies 2, but has only one continuous stiffening element 3, which extends through all the plastic body 2.
  • the plastic body 2 may in turn be welded together.
  • the conveyor coil according to the invention can be advantageously used to convey wet masses, viscous materials, products of different sizes, bulging products, fibrous materials, semi-liquid substances and products which have to be processed under hygienic conditions.
  • the conveyor coil according to the invention is particularly advantageous when conveying sensitive materials and products, or when conveying media that are aggressive towards metals.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Screw Conveyors (AREA)

Abstract

Spirale de transport sans fin (1) qui est formée par un corps en plastique (2) en forme de spirale comportant un élément de renforcement (3) en forme de spirale constitué d'un matériau plus rigide.
PCT/AT2015/050285 2014-11-10 2015-11-09 Spirale de transport sans fin Ceased WO2016074009A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50821/2014A AT516468A1 (de) 2014-11-10 2014-11-10 Förderspirale
ATA50821/2014 2014-11-10

Publications (1)

Publication Number Publication Date
WO2016074009A1 true WO2016074009A1 (fr) 2016-05-19

Family

ID=55070623

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2015/050285 Ceased WO2016074009A1 (fr) 2014-11-10 2015-11-09 Spirale de transport sans fin

Country Status (2)

Country Link
AT (1) AT516468A1 (fr)
WO (1) WO2016074009A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020139304A1 (fr) * 2018-12-26 2020-07-02 Андрей Юрьевич СОРОКОВИКОВ Procédé de production de spirale de vis sans fin

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3280963A (en) 1964-07-30 1966-10-25 Us Rubber Co Plastic screw conveyor and method of making same
FR2125626A1 (fr) * 1971-02-17 1972-09-29 Stanley Brice Lascelles
US3705644A (en) 1970-01-23 1972-12-12 Claude Edward Kawchitch Conveyor screw element
US5099985A (en) 1983-09-29 1992-03-31 The Laitram Corporation Unitary screw conveyor apparatus
US5178457A (en) * 1991-11-19 1993-01-12 Tandem Products, Inc. Mixer fin
KR20100045864A (ko) 2008-10-24 2010-05-04 주식회사 세경글로텍 코일스프링식 분체 이송장치에 구비되는 분체 이송로의 구조
DE102009045983A1 (de) 2009-10-26 2011-07-14 KD Stahl- und Maschinenbau GmbH, 37355 Fördereinrichtung und Verfahren zu ihrer Herstellung
CN104003123A (zh) * 2014-05-26 2014-08-27 安徽中意胶带有限责任公司 一种高耐磨聚氨酯材料复合螺旋给料器

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3280963A (en) 1964-07-30 1966-10-25 Us Rubber Co Plastic screw conveyor and method of making same
US3705644A (en) 1970-01-23 1972-12-12 Claude Edward Kawchitch Conveyor screw element
FR2125626A1 (fr) * 1971-02-17 1972-09-29 Stanley Brice Lascelles
US5099985A (en) 1983-09-29 1992-03-31 The Laitram Corporation Unitary screw conveyor apparatus
US5178457A (en) * 1991-11-19 1993-01-12 Tandem Products, Inc. Mixer fin
KR20100045864A (ko) 2008-10-24 2010-05-04 주식회사 세경글로텍 코일스프링식 분체 이송장치에 구비되는 분체 이송로의 구조
DE102009045983A1 (de) 2009-10-26 2011-07-14 KD Stahl- und Maschinenbau GmbH, 37355 Fördereinrichtung und Verfahren zu ihrer Herstellung
CN104003123A (zh) * 2014-05-26 2014-08-27 安徽中意胶带有限责任公司 一种高耐磨聚氨酯材料复合螺旋给料器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020139304A1 (fr) * 2018-12-26 2020-07-02 Андрей Юрьевич СОРОКОВИКОВ Procédé de production de spirale de vis sans fin

Also Published As

Publication number Publication date
AT516468A1 (de) 2016-05-15

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