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US3343238A - Machine for forming pre-molded blocks - Google Patents

Machine for forming pre-molded blocks Download PDF

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Publication number
US3343238A
US3343238A US393503A US39350364A US3343238A US 3343238 A US3343238 A US 3343238A US 393503 A US393503 A US 393503A US 39350364 A US39350364 A US 39350364A US 3343238 A US3343238 A US 3343238A
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US
United States
Prior art keywords
mold
wall
body portion
molded
machine
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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
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US393503A
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English (en)
Inventor
Junior Ricardo Coe
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Individual
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Individual
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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
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/08—Moulds provided with means for tilting or inverting

Definitions

  • the present invention provides improvements in casting mold apparatus in order to increase its functional value and embodies improved features resulting from studies and observations carried out in the experimentation and use of said similar known apparatus.
  • the block was not pressed, the mass being simply vibration molded. This resulted in the block becoming porous, without an adequate consistency.
  • the present invention embodies improved features whereby the brick or block, besides being compressed also undergoes vibration, thus becoming a more homogeneous and compact body and being unquestionably improved.
  • Another improvement lies in the fact that the vibration action is transferred from the outside of the molding box to its inside.
  • the vibration is no longer applied from the outside, but is applied to act from the interior outwardly, causing a more perfect compacting and imparting more solidity to the block.
  • Still another considerable improvement introduced is the arrangement of a metal plate dividing the mold so as to allow the simultaneous casting of two blocks, one in each half of said mold, said plate being pulled out automatically along with the top or lid of the mold.
  • FIG. 1 is a side elevational view partly in section showing the vibrator lowered, the pressing member raised and the mold rotated outwards;
  • FIGS. 2 and 3 are side elevational views partly in section of the mold after rotation to the position indicated in FIG. 1 and after separation of the molded concrete block therefrom, respectively;
  • FIG. 4 is a side elevational view partly in section showing the machine with its vibrator raised, the pressing member lowered and the mold closed;
  • FIGS. 5 and 6 are partial end elevational views showing the arrangement of the vertical plate or septum which doubles the molding capacity, and its operation.
  • the machine is mounted on a table or support 1 formed by metal rods.
  • An internal vibrating mold 2 which is actuated by motor 3 is centrally located on the frame 1.
  • the mold 2 can be vertically raised by means of an articulate lever system 4 having actuating arm or handle 5.
  • Vibrating mold 2 and its motor 3 are mounted on a horizontal arm ending in sleeves 6 which are slidably mounted on vertical rods.
  • the upward and downward movement of the mold 2 is controlled by said lever systern which may be pivoted to raise the assemblage to a position wherein the vibrating mold becomes centrally disposed in relation to the external mold.
  • the vibrating mold 2 penetrates the external mold via an opening (not shown) at the bottom.
  • the external mold is formed by three vertical walls 7, disposed at right angles. In the molding position the side without a wall abuts against a fixed vertical wall or abutment 8 extending upwardly from two horizontal side rails 9. Another wall 10 forms the bottom of said mold, having cut therein the opening for the vibrating mold 2.
  • the three side walls 7 join bottom 10 along an angular line; along the middle section of said angular line there is an intermediate circular member 11 which rotates around an eccentric axle and has a radial handle. Rotation of the eccentric member 11 pushes forward side walls 7, separating them from bottom 10.
  • a last top wall or lid 12 is fixed to a tray framework 13 which is pivoted on the frame 1 on a pivot bolt or hinge 14 so as to be angularly movable towards or away from the system.
  • a weight 15 is slidably mounted on rollers and rails on the framework 13 to permit it to slide by gravity between two butts 16 and 17.
  • the rocking or angular movement of framework 13 forms a chute and weight 15 sliding along it facilitates or accentuates its inclination and weighsdown lid 12 fixed under said framework.
  • This action which can also be obtained through automatic means or, in this example, by manual action on handle 18. It will be clearly understood that when handle 18 is raised weight 15 will slide by gravity, accentuating the elevation of framework 13 and lifting lid 12 away from the mold. When the handle 18 is lowered the weight 15 will slide back, pressing lid 12 onto the mold, as shown in FIG. 4.
  • the operation of the machine for forming the premolded block is the following:
  • the mold is set up by placing the edges of side walls 7 against fixed wall 8.
  • the vibrating mold 2 is raised by the action of articulate levers 4 through hand-actuated handle 5 and the vibrating mold is inserted within the external mold, its bottom fitting into the corresponding opening at the bottom wall 10.
  • the material is poured into the top of the external mold being kept within side walls 7, fixed wall 8, bottom Wall 10 and vibrator 3.
  • Lid 12 closes the top of the mold, being pressed down by weight 15 which slides back down the rails 13 when handle 18 is lowered.
  • the vibrator is actuated combining its action with that of pressing lid 12, the mass of material being thus pressed and made compact.
  • FIGS. 5 and 6 show an alternate embodiment of the invention wherein the further improvement introduced comprises a double set of internal vibrating molds which forms two hollows in the molded block, the bottom wall of the external mold being correspondingly constructed.
  • the further improvement introduced comprises a double set of internal vibrating molds which forms two hollows in the molded block, the bottom wall of the external mold being correspondingly constructed.
  • a metal plate 19 will separate the chamber into two parts.
  • the plate 19 is fixed by hinge and pivot pin to the top lid 12.
  • the plate 19 will be lifted with the lid.
  • the other features are similar to the other embodiment.
  • a machine for forming substantially rectangularly sectioned hollow blocks comprising a supporting frame, a vibratory mold member with a body portion of a configuration of a hollow of the part to be molded, means for vibrating said mold member carried by said mold member, wall means forming a substantially rectangularly sectioned mold having an open top and a bottom opening in alignment with said body portion of a size to be closed by said body portion when the latter is inserted therein, means mounting said vibratory mold member permitting insertion and removal of said body portion into and out of the bottom opening of said mold, and cover means for closing the top of said mold and for applying a downward force on the material being molded in said mold, said wall means forming said mold comprising a bottom and a first side wall with an eccentrically mounted cylindrical pivotal member formed therebetween, and a fixed wall defining a second side wall of said mold, said first side and bottom wall being displaceable upon eccentric rotational movement of said cylindrical member in one direction to present said bottom in alignment with the bottom edge of said second wall for filling said mold, and
  • said wall means includes a plate separating said mold, said plate being connected to said cover for removal from said mold when said cover is removed.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
US393503A 1963-10-10 1964-09-01 Machine for forming pre-molded blocks Expired - Lifetime US3343238A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR15328863 1963-10-10

Publications (1)

Publication Number Publication Date
US3343238A true US3343238A (en) 1967-09-26

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Application Number Title Priority Date Filing Date
US393503A Expired - Lifetime US3343238A (en) 1963-10-10 1964-09-01 Machine for forming pre-molded blocks

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US (1) US3343238A (es)
ES (1) ES303936A1 (es)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US531237A (en) * 1894-12-18 Ralph walsh
US838279A (en) * 1905-06-19 1906-12-11 Rueti Ag Maschf Double-lift open-shed jacquard-machine.
US965350A (en) * 1909-11-04 1910-07-26 Cyrus S Wert Brick-machine.
FR710388A (fr) * 1931-02-02 1931-08-21 Procédé de fabrication des blocs en béton ou agglomérés de toute autre nature
US2528084A (en) * 1946-07-03 1950-10-31 Sand Stig Machine for molding hollow blocks
US2544453A (en) * 1941-09-19 1951-03-06 Gaudin Armand Theodore Machine for manufacturing pipes
US2663063A (en) * 1947-03-28 1953-12-22 Donald R Smith Molding machine and method of molding
US2831231A (en) * 1955-05-17 1958-04-22 Erwin C Toensing Adjustable and collapsible pier mold
US3201843A (en) * 1963-08-13 1965-08-24 Price Brothers Co Concrete pipe molding machine

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US531237A (en) * 1894-12-18 Ralph walsh
US838279A (en) * 1905-06-19 1906-12-11 Rueti Ag Maschf Double-lift open-shed jacquard-machine.
US965350A (en) * 1909-11-04 1910-07-26 Cyrus S Wert Brick-machine.
FR710388A (fr) * 1931-02-02 1931-08-21 Procédé de fabrication des blocs en béton ou agglomérés de toute autre nature
US2544453A (en) * 1941-09-19 1951-03-06 Gaudin Armand Theodore Machine for manufacturing pipes
US2528084A (en) * 1946-07-03 1950-10-31 Sand Stig Machine for molding hollow blocks
US2663063A (en) * 1947-03-28 1953-12-22 Donald R Smith Molding machine and method of molding
US2831231A (en) * 1955-05-17 1958-04-22 Erwin C Toensing Adjustable and collapsible pier mold
US3201843A (en) * 1963-08-13 1965-08-24 Price Brothers Co Concrete pipe molding machine

Also Published As

Publication number Publication date
ES303936A1 (es) 1965-03-01

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