EP0620090B1 - Compacting installation - Google Patents

Compacting installation Download PDF

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Publication number
EP0620090B1
EP0620090B1 EP94200952A EP94200952A EP0620090B1 EP 0620090 B1 EP0620090 B1 EP 0620090B1 EP 94200952 A EP94200952 A EP 94200952A EP 94200952 A EP94200952 A EP 94200952A EP 0620090 B1 EP0620090 B1 EP 0620090B1
Authority
EP
European Patent Office
Prior art keywords
frame
plate
massive body
installation
installation according
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.)
Expired - Lifetime
Application number
EP94200952A
Other languages
German (de)
French (fr)
Other versions
EP0620090A1 (en
Inventor
Gijsbert Toet
Anne Huig Den Boer
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.)
Den Boer Staal BV
Original Assignee
Den Boer Staal BV
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 Den Boer Staal BV filed Critical Den Boer Staal BV
Publication of EP0620090A1 publication Critical patent/EP0620090A1/en
Application granted granted Critical
Publication of EP0620090B1 publication Critical patent/EP0620090B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
    • B28B3/022—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form combined with vibrating or jolting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
    • B28B1/081—Vibration-absorbing means
    • 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
    • B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B30B11/022—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space whereby the material is subjected to vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0076—Noise or vibration isolation means

Definitions

  • the invention relates to an installation for compacting concrete mix, comprising a frame which has a lower plate and an upper plate between which concrete mix can be accommodated, which plates can be pressed in the direction towards one another and can be made to vibrate with respect to one another in order to compact the mix.
  • Said known installation has the disadvantage that the noise level and vibrational level in operation are unacceptably high. Consequently, said installation constitutes an unacceptable burden on the surroundings, whilst it is also not able to meet legal requirements with regard to working conditions. Moreover, the environmental nuisance, caused by noise and vibrations, is too high.
  • the aim of the invention is, therefore, to provide an installation of the type described above which does not have these disadvantages. This is achieved because each plate is connected to the frame by means of an associated, spring-mounted massive body.
  • the relatively large massive bodies prevent vibrations being transmitted to the frame.
  • An additional advantage of said bodies is that a substantial machine foundation is no longer required since said foundation only has to take the weight of the installation but does not have to absorb the dynamic forces which are associated with the vibrating function of the installation.
  • the upper plate is connected to the associated upper massive body by means of an exciter, whereas the lower plate is connected to the associated lower massive body by means of a pressure cylinder.
  • the frame is so constructed that the latter has, on the one side, a set of anchor points for the upper massive body and, on the other side, a set of anchor points for the lower massive body, and at least the frame sections which connect the sets of anchor points are rigid.
  • the frame comprises two parallel plate sections, each of which has a vertical section which connects two horizontal sections, which horizontal sections carry the anchor points.
  • Figure 1 is a schematic diagram of the installation according to the invention.
  • Figures 2 a and 2 b show, respectively, a front and a side view of an embodiment of the installation according to the invention.
  • 1 and 2 indicate frame sections on which the upper massive body 4 is mounted by means of springs 3 and the lower massive body 6 is mounted by means of springs 5.
  • the upper massive body carries a hydraulic exciter 7, an upper plate 9 being fixed to the piston rod 8 thereof.
  • the lower massive body carries a pressure cylinder 10, the lower vibrating plate 12 being fixed to the piston rod 11 thereof.
  • Both the exciter 7 and the pressure cylinder 10 can be operated by means of the hydraulic unit 13.
  • the hydraulic unit 13 is controlled by means of the control and regulator unit 14.
  • compaction of the product 15, which is located between the upper plate 9 and the lower plate 12 is effected by a combination of excitation and compression.
  • the vibrations are generated by means of the hydraulic system 13, 14.
  • the hydraulic system 13, 14 also provides the compression function.
  • the vibrating components of the installation in particular the vibrating plates 9, 12, exciter 7 and pressure cylinder 10, can develop severe vibration, which vibrations are transmitted to the upper massive body 4 and the lower massive body 6.
  • Said massive bodies 4, 6 have such a high mass that the violent vibrations of the components 7, 9, 12 and 10 are not able to be transmitted directly to the frame 1, 2.
  • the spring mountings 3, 5 also form a supplementary barrier against transmission of vibrations to the frame 1, 2.
  • the compaction installation shown in Figures 2 a and 2 b makes use of the construction principle shown in Figure 1.
  • This installation comprises a very rigid frame 16, which constitutes a closed system and contains two C-shaped walls 17, 18.
  • Support plates 19, 20 are fitted on the horizontal arms of the walls, which support plates are firmly fixed to the walls 17 by means of support strips 21 and 23.
  • the spring mountings 24 for the upper massive body 25 and, respectively, the spring mountings 26 for the lower massive body 27 are fitted on said support plates 19, 20.
  • the lower massive body 27 has a recess 28, in which the hydraulic press 29 is incorporated.
  • the exciter 30 is suspended from the upper massive body 25.
  • the massive bodies are provided with, respectively, a lower vibrating plate 31 and an upper vibrating plate 32.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Road Paving Machines (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Seal Device For Vehicle (AREA)
  • Polarising Elements (AREA)
  • Vehicle Body Suspensions (AREA)
  • Glass Compositions (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

An installation for compacting concrete mix comprises a frame which has a lower plate (12) and an upper plate (9) between which concrete mix can be accommodated, which plates can be pressed in the direction towards one another and can be made to vibrate with respect to one another in order to compact the mix. Each plate (9,12) is connected to the frame (1,2) by means of an associated spring-mounted (3,5) massive body (4,6). <IMAGE>

Description

  • The invention relates to an installation for compacting concrete mix, comprising a frame which has a lower plate and an upper plate between which concrete mix can be accommodated, which plates can be pressed in the direction towards one another and can be made to vibrate with respect to one another in order to compact the mix.
  • An installation of this type is disclosed in Netherlands Patent Application NL-A 8,004,995. As a result of the use of a hydraulic vibrating element and a hydraulic press installation, it is possible, using this known installation, to obtain a desired, predetermined vibration/time curve which is suited to the product to be formed, such that the concrete mix is optimally compacted.
  • Said known installation has the disadvantage that the noise level and vibrational level in operation are unacceptably high. Consequently, said installation constitutes an unacceptable burden on the surroundings, whilst it is also not able to meet legal requirements with regard to working conditions. Moreover, the environmental nuisance, caused by noise and vibrations, is too high.
  • The aim of the invention is, therefore, to provide an installation of the type described above which does not have these disadvantages. This is achieved because each plate is connected to the frame by means of an associated, spring-mounted massive body.
  • The relatively large massive bodies prevent vibrations being transmitted to the frame. An additional advantage of said bodies is that a substantial machine foundation is no longer required since said foundation only has to take the weight of the installation but does not have to absorb the dynamic forces which are associated with the vibrating function of the installation.
  • Preferably, the upper plate is connected to the associated upper massive body by means of an exciter, whereas the lower plate is connected to the associated lower massive body by means of a pressure cylinder.
  • The frame is so constructed that the latter has, on the one side, a set of anchor points for the upper massive body and, on the other side, a set of anchor points for the lower massive body, and at least the frame sections which connect the sets of anchor points are rigid. With this arrangement the frame comprises two parallel plate sections, each of which has a vertical section which connects two horizontal sections, which horizontal sections carry the anchor points.
  • The invention will be explained in more detail below with the aid of the illustrative embodiment shown in the figures.
  • Figure 1 is a schematic diagram of the installation according to the invention.
  • Figures 2a and 2b show, respectively, a front and a side view of an embodiment of the installation according to the invention.
  • In the schematic diagram shown in Figure 1, 1 and 2 indicate frame sections on which the upper massive body 4 is mounted by means of springs 3 and the lower massive body 6 is mounted by means of springs 5. The upper massive body carries a hydraulic exciter 7, an upper plate 9 being fixed to the piston rod 8 thereof.
  • The lower massive body carries a pressure cylinder 10, the lower vibrating plate 12 being fixed to the piston rod 11 thereof.
  • Both the exciter 7 and the pressure cylinder 10 can be operated by means of the hydraulic unit 13. The hydraulic unit 13 is controlled by means of the control and regulator unit 14.
  • In the installation according to the invention, compaction of the product 15, which is located between the upper plate 9 and the lower plate 12, is effected by a combination of excitation and compression. The vibrations are generated by means of the hydraulic system 13, 14.
  • The hydraulic system 13, 14 also provides the compression function.
  • With this arrangement, the vibrating components of the installation, in particular the vibrating plates 9, 12, exciter 7 and pressure cylinder 10, can develop severe vibration, which vibrations are transmitted to the upper massive body 4 and the lower massive body 6. Said massive bodies 4, 6 have such a high mass that the violent vibrations of the components 7, 9, 12 and 10 are not able to be transmitted directly to the frame 1, 2. The spring mountings 3, 5 also form a supplementary barrier against transmission of vibrations to the frame 1, 2.
  • The compaction installation shown in Figures 2a and 2b makes use of the construction principle shown in Figure 1. This installation comprises a very rigid frame 16, which constitutes a closed system and contains two C- shaped walls 17, 18. Support plates 19, 20 are fitted on the horizontal arms of the walls, which support plates are firmly fixed to the walls 17 by means of support strips 21 and 23. The spring mountings 24 for the upper massive body 25 and, respectively, the spring mountings 26 for the lower massive body 27 are fitted on said support plates 19, 20.
  • The lower massive body 27 has a recess 28, in which the hydraulic press 29 is incorporated. The exciter 30 is suspended from the upper massive body 25. The massive bodies are provided with, respectively, a lower vibrating plate 31 and an upper vibrating plate 32.
  • With a rigid construction of this type, provided with the massive bodies 25 and 27, it is not necessary to provide a substantial foundation. The frame 16 is therefore also supported on spring base mountings 33. This means that the transmission of vibrations to the surroundings is greatly reduced, compared with that from known vibratory installations.

Claims (6)

  1. Installation for compacting concrete mix, comprising a frame (1, 2) which has a lower plate (12) and an upper plate (9) between which concrete mix can be accommodated, which plates can be pressed in the direction towards one another and can be made to vibrate with respect to one another in order to compact the mix, characterised in that each plate (9, 12) is connected to the frame (1, 2) by means of an associated, spring-mounted massive body (4, 6).
  2. Installation according to Claim 1, wherein the upper plate or the lower plate is connected by means of an exciter (7) to the associated massive body.
  3. Installation according to Claim 1 or 2, wherein the lower plate or the upper plate is connected by means of a pressure cylinder (10) to the associated massive body.
  4. Installation according to one of the preceding claims, wherein the frame has, on the one side, a set of anchor points (24) for the upper massive body and, on the other side, a set of anchor points (26) for the lower massive body, and at least the frame sections which connect the sets of anchor points are rigid.
  5. Installation according to Claim 4, wherein the frame comprises two parallel plate sections (17, 18), each of which has a vertical section which connects two horizontal sections (19, 20), which horizontal sections carry the anchor points.
  6. Installation according to one of the preceding claims, wherein the massive bodies are supported by means of elastic blocks.
EP94200952A 1993-04-07 1994-04-07 Compacting installation Expired - Lifetime EP0620090B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9300610 1993-04-07
NL9300610A NL9300610A (en) 1993-04-07 1993-04-07 Compaction equipment.

Publications (2)

Publication Number Publication Date
EP0620090A1 EP0620090A1 (en) 1994-10-19
EP0620090B1 true EP0620090B1 (en) 1996-11-27

Family

ID=19862264

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94200952A Expired - Lifetime EP0620090B1 (en) 1993-04-07 1994-04-07 Compacting installation

Country Status (6)

Country Link
EP (1) EP0620090B1 (en)
AT (1) ATE145580T1 (en)
DE (1) DE69400973T2 (en)
DK (1) DK0620090T3 (en)
ES (1) ES2095126T3 (en)
NL (1) NL9300610A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5834038A (en) * 1994-12-14 1998-11-10 Nissei Asb Machine Co., Ltd. Blow molding apparatus
CA2396499A1 (en) * 1999-12-24 2001-07-05 Gedib Ingenieurburo Und Innovationsberatung Compressing device for performing compression operations on shaped bodies made of grainy materials
DE10061449A1 (en) * 2000-12-10 2002-06-13 Gedib Ingbuero Innovation Compacting device for compacting product bodies consisting of granular mass

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1142615A (en) * 1965-07-03 1969-02-12 Birmingham Small Arms Co Ltd Improvements in or relating to production of articles from metallic and non-metallic powders
DE2855875C2 (en) * 1978-12-22 1983-10-20 Schlosser & Co Gmbh, 6209 Aarbergen Machine for compacting moldings made of concrete or similar plastic masses
DE3048181C2 (en) * 1980-12-19 1982-10-28 Passavant-Werke AG & Co KG, 6209 Aarbergen Device for producing compacted molded bodies made of concrete or the like.
SU1660963A1 (en) * 1989-03-07 1991-07-07 Днепропетровский Металлургический Институт Method for molding refractory concrete parts

Also Published As

Publication number Publication date
NL9300610A (en) 1994-11-01
ATE145580T1 (en) 1996-12-15
DE69400973D1 (en) 1997-01-09
DE69400973T2 (en) 1997-05-28
ES2095126T3 (en) 1997-02-01
DK0620090T3 (en) 1996-12-16
EP0620090A1 (en) 1994-10-19

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