EP3551445A1 - Tête de pressage, dispositif de pressage d'un produit à presser et procédé de pressage d'un produit à presser - Google Patents

Tête de pressage, dispositif de pressage d'un produit à presser et procédé de pressage d'un produit à presser

Info

Publication number
EP3551445A1
EP3551445A1 EP16809381.3A EP16809381A EP3551445A1 EP 3551445 A1 EP3551445 A1 EP 3551445A1 EP 16809381 A EP16809381 A EP 16809381A EP 3551445 A1 EP3551445 A1 EP 3551445A1
Authority
EP
European Patent Office
Prior art keywords
pressing
press
pressed
channel
head
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.)
Pending
Application number
EP16809381.3A
Other languages
German (de)
English (en)
Inventor
Hans Ruf
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.)
Ruf Maschinenbau & Co KG GmbH
Original Assignee
Ruf Maschinenbau & 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 Ruf Maschinenbau & Co KG GmbH filed Critical Ruf Maschinenbau & Co KG GmbH
Publication of EP3551445A1 publication Critical patent/EP3551445A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/22—Extrusion presses; Dies therefor
    • B30B11/224—Extrusion chambers
    • B30B11/225—Extrusion chambers with adjustable outlet opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/22—Extrusion presses; Dies therefor
    • B30B11/26—Extrusion presses; Dies therefor using press rams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds

Definitions

  • Press head device for pressing pressed material and method for pressing pressed material
  • the present invention relates to a pressing head, a device for pressing pressed material and a method for pressing pressed material according to the preambles of the independent claims.
  • DE1627914 shows a press head with a press channel and egg ⁇ nem, movably arranged in the press channel, pressing element.
  • the be ⁇ movable pressing element exerts a force on the material to be pressed, which is adjustable with a screw.
  • the device of the DE1627914 proves Not to be used ⁇ net for pressing pressed material having a high inhomogeneity has, as it is present in chips.
  • Clover or grass chips for which the compression head according to DE1627914 is designed, are uniformly chopped and have a homogeneous size distribution. Pressed material, which is obtained, for example, in the mechanical processing of workpieces, has a high
  • Degree of inhomogeneity This is due, for example, to machining the workpiece with different tools. For example, very large as well as very small shavings can be produced in equal measure.
  • the press head from DE1627914 is equipped with a spring which exerts a constant static preload force on the press ⁇ selement.
  • This biasing force can be set beforehand by means of an adjusting screw ⁇ , but then remains un- changed.
  • Another disadvantage of this known device relates to the limited amount of material to be pressed, that can be squeezed per stroke verar ⁇ or beitet.
  • a pressing head according to the invention for a device for pressing pressed material and in particular for pressing chips, preferably an extrusion press comprises at least two pressing channels.
  • Each of the press channels has an inlet opening and an outlet opening.
  • Each press channel has a particular fixed support member and a respective movable pressing element.
  • the pressing element is movable on one side, preferably tively to the support element and in particular in the range of from ⁇ opening, such that a cross section of the pressing channel at its inlet opening is variable at its exit opening relative to the cross section of the pressing channel.
  • the pressing head has a die, which is arranged in front of the inlet opening of the pressing channel.
  • the A ⁇ exit opening of the pressing channel then coincides with an entry ⁇ opening of the die. That is, the pressing channel includes the die or its opening.
  • the die has an opening for each press channel.
  • each pressing channel for each briquette is a separately ⁇ adjustable, or may be changed.
  • the briquette has a cross section during the pressing process, which essentially corresponds to the cross section of the pressing channel at its inlet opening. Due to the inhomogeneity of the pressed material, which is pressed into a briquette, the briquette is more or less elastic in its cross-section, that is, individual briquettes have a mutually different elasticity.
  • the cross section of the press channels is individually adjustable for each press channel.
  • the quality of Bri ⁇ briquettes is independent of the nature of the pres ⁇ to send material to be pressed essentially constant at a high level.
  • the pressing channels are shared equally between the support member and the pressing member in its cross-section We ⁇ sentlichen formed. It is conceivable that adjusts a gap between the support ⁇ zelement and the pressing element, which must not be completely closed even with a reduction of the cross section at the outlet opening.
  • the cross-sectional area of the pressing channel is substantially halved by the support member and the pressing member, the pressing member but only approximately corresponds to the diameter of the pressing channel and is formed as a push-in element on the pressing head, which completes the cross section of the pressing channel.
  • the pressing channel has in this case between its inlet and its outlet opening has a longitudinal axis and is movable along the ⁇ ser, in a perpendicular direction to the longitudinal axis, open. That is, the inlet opening and the outlet opening are interconnected by an open channel.
  • the pressing element can be located in this open channel and is arranged in particular movable therein.
  • the press channels on a common support element.
  • This support element is preferably in one piece, insbesonde ⁇ re integrally formed. This allows on the one hand simple production and other ⁇ hand, an improvement in force absorption.
  • the common support alarm ⁇ zelement brings the pressing channels also in a position relative to each other ⁇ that is unchangeable. Since the pressing channels each have a separate pressing element, uneven wear of the parts or regions of the respective pressing channels, which are located in the support element, unproblematic.
  • the holding force can be adjusted inde ⁇ pendent for each bale chamber.
  • the press channels can be arranged side by side in the press head.
  • a common support element only has to be processed on one side.
  • the pressing elements can also be arranged side by side. They may have the Common ⁇ me fasteners.
  • the pressing channels are arranged opposite each other. This means that the sprues lie ⁇ gene in a common plane, comprise a common pressing direction, the pressing members are each positivelylie- neighborhood or located diametrically.
  • Arranged side by side in this context means that the pressing channels lie in a first plane, and the pressing elements in a two-th ⁇ plane parallel thereto.
  • the pressing head is designed such that each pressing element is pivotally mounted about a, preferably relative to the support member fi ⁇ xêt, rotation axis.
  • This axis is located in particular in the region of the inlet opening of the press channel.
  • the axis of rotation is arranged substantially perpendicular to the pressing channel. That is, the axis of rotation is located in egg ⁇ ner plane parallel to a plane through the longitudinal axis of the
  • Press channel and in this case has a direction which is perpendicular to the longitudinal axis of the press channel.
  • the plane is defined by the several longitudinal axes of the respective press channels.
  • Each press element may be assigned an adjusting element for adjusting the pressing element. This allows adjustment of the pressing or holding force on each pressing element.
  • each actuator is independently adjustable and in particular also independently controlled.
  • the pressing force in each pressing channel can be made independent. This allows the influence on the briquette during the pressing process.
  • Adjusting elements can be designed, for example, as hydraulic or pneumatic elements. It is also conceivable to provide a spring. Electrical or mechanical control elements are also conceivable.
  • three press channels are arranged side by side. But there are also more than three press channels next to each other imagine ⁇ bar. This increases the capacity of the pressing head.
  • two pairs of pressing channels are arranged egg ⁇ nander opposite one another.
  • three pressing channels are arranged opposite each other.
  • An uneven number of oppositely arranged sprues is also conceivable, for example, can be located on one side and three on the other side two press ⁇ channels. Further combinations are conceivable.
  • This allows a press head to align individually to an associated pressing device or to the associated pressed material. This can be advantageous, for example, if it is known in the projek ⁇ orientation to be pressed, and this, for example, a certain distribution or size having a specific mixture of material to be pressed, for example, large and klei ⁇ ne chips.
  • the pressing channels are arranged opposite one another in a falling direction of the material to be pressed, it can be assumed that smaller chips collect in a lower region of the device and larger chips in an upper region. It may be advantageous if three extrusion channels are arranged at ⁇ play, in the lower area and two in the upper area. Thus, if necessary, a desired Pres ⁇ solution can be achieved.
  • Another aspect of the invention therefore also relates to a device for pressing pressed material, in particular for pressing chips and in particular an extruder, wherein the pre ⁇ direction for pressing pressed material comprises at least one pressing head as described herein.
  • the device comprises a pressing head as vorlie ⁇ ing described, each pressing element is associated with an adjusting element for adjusting the pressing element.
  • the device comprises a control device for adjusting the control element.
  • each pressing channel is assigned a pressing piston for pressing the material to be pressed.
  • the plungers may be movable by means of a common cylinder.
  • a common cylinder may be used to move the plungers.
  • the device as described herein can have a pre-collection space for receiving and / or pre-compacting pressed material.
  • the pre-collection space is preferably assigned to all press channels at the same time.
  • a device for pressing pressed material has a filling device, which is typically designed as a funnel.
  • the pressed material to be pressed is collected in the hopper and directed to the pressing head.
  • the pressed material for example, only by gravity to the pressing head be encouraged.
  • other elements are conceivable, which convey the material to be pressed, as beispielswei ⁇ se screw conveyors or the like.
  • such a screw conveyor opens in a pre-collection space, which receives the pressed material before pressing. Due to the compelling promotion of the screw conveyor can Vorver ⁇ seal the material to be pressed arise.
  • the pressed material is pressed from the pre-collection room in briquettes and collected for further processing, for example in a trough.
  • the apparatus may be designed as another constituent of a further machine such as a machining center ⁇ rums.
  • a further machine such as a machining center ⁇ rums.
  • the device may have additional elements for setting up, such as a machine frame.
  • Another aspect of the invention relates to a method for pressing pressed material, in particular with a device as described hereinbefore, and preferably with a pressing head as described hereinbefore.
  • the method comprises the steps
  • Pressing channel by a movable pressing element Pressing channel by a movable pressing element.
  • the pressing force on the second portion of the material to be pressed is set by the movable pressing element, in particular by a holding force of the first portion of the material to be pressed in the pressing channel.
  • the material to be pressed is pressed simultaneously by two or more pressing channels.
  • the material to be pressed is pressed simultaneously by two or more pressing channels.
  • the starting position corresponds to the position of the plunger in the on ⁇ state, when the plunger releases the pre-collection or is in its furthest possible from the inlet opening of the press channel remote location.
  • the end position of the plunger can be defined on the one hand, if a certain distance traveled, which is determined for example via a measurement on the cylinder or plunger. It would also be conceivable that the end position is linked to the achievement of a certain force.
  • this equilibrium sets between first and th two ⁇ serving after some going through the process.
  • the first of these clocks can thus be referred to as start-up until a stable state is established.
  • This method makes it possible, with several pressing channels arranged side by side or one above the other, for each pressing channel, to achieve a correspondingly equivalent quality of the briquettes which are pressed.
  • an adjusting element for adjusting the holding force as a function of a manipulated variable on the pressing cylinder or on
  • Plunger set independently for each pressing element.
  • the manipulated variable is defined as a function of a force on the plunger.
  • the force on plunger is a UNMIT ⁇ telbares indication of the nature of the briquettes and allows a clear statement of the pressing process.
  • force gauges similar to the press piston may be attached, which provide a value for defining the manipulated variable.
  • the plungers are hydraulically operated.
  • the manipulated variable can be defined as a function of the hydraulic pressure.
  • Figure 1 a device for pressing pressed material
  • Figure 2 a part of the device of Figure 1 with a
  • FIG. 3 shows a cross section through a press channel of Figure 2 in a perspective view
  • Figure 4 the cross section of Figure 3 in an orthogonal
  • FIG. 5a is a diagrammatic representation of FIG. 5a
  • FIG. 1 shows a device 200 for pressing material S to be compacted.
  • the device 200 has a hopper 202 for receiving the material S to be pressed.
  • the hopper 202 is connected to a pressing unit which includes a pressing head 100.
  • the Vorrich ⁇ processing 200 stands on a machine frame two hundred and first
  • FIG. 2 shows a part of the device 200 from FIG. 1.
  • a pressing head 100 is located inside the pressing unit. The
  • Press unit starts here with a connection 101, to which the filling funnel 202 (FIG. 1) is connected. Within this nozzle 101 and the hopper 202 is a screw conveyor 203 ( Figure 3). In the figure, above and below the pressing head 100, a respective adjusting device 30, 30 'is arranged.
  • the pressing head 100 comprises a common Stützele ⁇ ment 2 and six pressing elements 3. Shown are six Pressele ⁇ elements 3, for better clarity, but only one be ⁇ is characterized and is also described.
  • the pressing member 3 forms together with the support element 2, the press channel 1.
  • Vorlie ⁇ quietly are three extrusion channels 1 arranged opposite to three additional press channels. 1 In each case three of the pressing channels are arranged next to one another ⁇ ne.
  • the adjusting devices 30, 30 ⁇ act together with the pressing elements 3.
  • the pressing head 100 is formed vorlie ⁇ vicinity of two side plates, between which the support ⁇ lement (2) is arranged.
  • the pressing head 100 also includes the pressing elements 3, which together with the supporting element 2 form six pressing channels 1.
  • FIG. 3 shows a cross section along the longitudinal axis of the press channel drawn in FIG.
  • FIG. 3 shows further details of the device according to FIG. 1, which are not shown in FIG.
  • the machine frame 201 is he ⁇ arranged, on which the press unit is integrally arranged with the pressing head ⁇ 100th
  • the conveying direction of the material to be pressed is defined by the conveying screw 203 and the pressing head 100, that is to say the conveying direction is from the conveying rack 202 in the direction of the pressing head 100 with the outlet openings 12.
  • Press material is collected in the pre-collection space 204 and pressed by means of the plunger 4, 4 ⁇ in the press head 100.
  • the plunger 4, 4 ⁇ move in the conveying direction in the die 6 and press the material to be pressed through the die 6.
  • the pressing head 100 Downstream of the die 6, the pressing head 100 is arranged.
  • the Presselemen ⁇ te 3 and 3 ⁇ of the pressing head 100 are on the axes of rotation 5 and 5 ⁇ superimposed bearings.
  • the pressing elements 3 and 3 ⁇ are so mounted on the Drehach ⁇ sen 5 and 5 ⁇ that they can move away from the jeweili ⁇ conditions adjusting devices 30, 30 ⁇ .
  • FIG. 4 shows the cross section according to FIG. 3 in an orthogonal view.
  • the press channel 1 has an inlet opening 11 and an outlet opening 12 on ⁇ .
  • the inlet channel 1 has a cross-section QA; in the region of the outlet opening 12, the press channel 1 has a cross-section QE.
  • the pressing channel 1 is formed by the adjusting element 2 and the pressing element 3.
  • the pressing element 3 is rotatably mounted on the axis of rotation 5.
  • a regular cross-section Q of the press channel 1 results in the area of the axis of rotation 5.
  • Pressing piston 4 is formed in the die 6, has substantially a diameter corresponding to the cross section of the die 6. Due to the different properties of the briquettes, but the elasticity of the briquettes in cross section ⁇ direction is different. Once pressed, the briquette is conveyed through the following briquette into the press channel 1. In press channel 1 this briquette must be kept. Since the Inhomo ⁇ gentician of the briquettes is important to each other, but by the setting of the pressing member 3 with the actuator 31 but still a substantially constant holding force on the Briquettes are exerted in the press channel 1, whereby a certain counterforce or reaction force to the pressing ⁇ piston 4 is provided within the die.
  • FIGS. 5a to 5c show different embodiments of the pressing head. For the sake of clarity, only individual ones of several identical elements are provided with reference symbols.
  • FIG. 5a now shows a pressing head with two side by side lie ⁇ constricting press channels 1.
  • the support member 2 is integrally formed with the present ei ⁇ ner side of the pressing head. Within the pressing head pressing channels 1 are visible, which are completed with the pressing member 3. In the present case, two pres ⁇ simplantation 3 side by side form the conclusion of the upwardly open press channel. 1
  • FIG. 5b shows an arrangement according to FIG. 5a, with two pairs of press channels 1 facing each other. It is conceivable that both pairs of the press channels 1 are formed as described in the figure 5a. Alternatively, it would be conceivable to design the press channels 1 and the press element 3 as shown in FIG. 5b below. It would vorstell ⁇ bar, that the supporting element 2 has an additional web 21 on ⁇ which divides the pressing channels to each other. In this case, the pressing elements 3 can be formed only with the width of the diameter of the pressing channel 1, so that the pressing elements 3 form an insertion element for the pressing channel 1.
  • Figure 5c shows a further embodiment of the pressing head where ⁇ at this substantially corresponds to the formation according to figure 5b, with the difference that in each case three pressing channels 1 are arranged opposite to each other, wherein each of three Pressing channels 1 are arranged side by side.
  • the support member 2 is also formed here in one piece with side walls of the pressing head.
  • the press elements 3 respectively corresponding to the Ausbil ⁇ compound, such as described in FIG 5a.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)

Abstract

L'invention concerne une tête de pressage (100) pour un dispositif de pressage d'un produit à presser, en particulier pour le pressage de copeaux, en particulier d'une presse à filer. La tête de pressage (100) comporte au moins deux canaux de pressage (1, 1') pourvus chacun d'un orifice d'entrée (11, 11') et d'un orifice de sortie (12, 12'). Chaque canal de pressage (1, 1') présente un élément d'appui (2, 2') fixe et un élément de pressage (3, 3') mobile respectif. L'élément de pressage (3, 3') est mobile d'un côté, de préférence par rapport à l'élément d'appui (2, 2'). Une section transversale (QA) du canal de pressage à l'orifice de sortie de celui-ci est variable par rapport à la section transversale (QE) du canal de pressage à l'orifice d'entrée de celui-ci.
EP16809381.3A 2016-12-09 2016-12-09 Tête de pressage, dispositif de pressage d'un produit à presser et procédé de pressage d'un produit à presser Pending EP3551445A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2016/080432 WO2018103860A1 (fr) 2016-12-09 2016-12-09 Tête de pressage, dispositif de pressage d'un produit à presser et procédé de pressage d'un produit à presser

Publications (1)

Publication Number Publication Date
EP3551445A1 true EP3551445A1 (fr) 2019-10-16

Family

ID=57539256

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16809381.3A Pending EP3551445A1 (fr) 2016-12-09 2016-12-09 Tête de pressage, dispositif de pressage d'un produit à presser et procédé de pressage d'un produit à presser

Country Status (4)

Country Link
US (1) US11059250B2 (fr)
EP (1) EP3551445A1 (fr)
RU (1) RU2732538C1 (fr)
WO (1) WO2018103860A1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE260831C (fr) * 1912-02-20 1913-06-10
US3090182A (en) * 1959-03-23 1963-05-21 Cal Cube Inc Machine and method for pelletizing field cured hay
US3304592A (en) * 1964-02-12 1967-02-21 Fattirolli Mario Machine with mold-section-varying means for manufacture of concrete articles through subsequent compression states
DE1627914A1 (de) 1967-03-21 1971-01-28 Hummel Soehne H Presskopf fuer Trockenhaecksel-Brikettierpressen
SU582101A1 (ru) * 1975-10-17 1977-11-30 Московский Филиал Всесоюзного Научно-Исследовательского Института Торфяной Промышленности Пресс брикетный штемпельный
SU1181878A1 (ru) * 1983-10-10 1985-09-30 Белорусский Ордена Трудового Красного Знамени Политехнический Институт Штемпельный пресс дл прессовани брикетов
WO1994014596A1 (fr) * 1992-12-22 1994-07-07 Wk Worek Kunststofftechnik Gmbh Extrudeuse a piston
RU10370U1 (ru) * 1998-12-15 1999-07-16 Научно-производственный центр "Брикет" Пресс штемпельный "брикет"

Also Published As

Publication number Publication date
RU2732538C1 (ru) 2020-09-21
WO2018103860A1 (fr) 2018-06-14
US11059250B2 (en) 2021-07-13
US20190299555A1 (en) 2019-10-03

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