EP0565540A1 - Verfahren und vorrichtung zum herstellen von formteilen aus formmasse. - Google Patents
Verfahren und vorrichtung zum herstellen von formteilen aus formmasse.Info
- Publication number
- EP0565540A1 EP0565540A1 EP92901074A EP92901074A EP0565540A1 EP 0565540 A1 EP0565540 A1 EP 0565540A1 EP 92901074 A EP92901074 A EP 92901074A EP 92901074 A EP92901074 A EP 92901074A EP 0565540 A1 EP0565540 A1 EP 0565540A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- molding device
- molded
- shaped
- wall
- parts
- 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.)
- Granted
Links
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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/16—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
- B28B7/168—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes for holders or similar hollow articles, e.g. vaults, sewer pits
-
- 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
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/76—Moulds
- B28B21/82—Moulds built-up from several parts; Multiple moulds; Moulds with adjustable parts
-
- 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
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/86—Cores
- B28B21/88—Cores adjustable, collapsible or expansible
-
- 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
- B28B7/28—Cores; Mandrels
- B28B7/30—Cores; Mandrels adjustable, collapsible, or expanding
Definitions
- the invention relates to a method for producing molded parts from molding compound of the type referred to in the preamble of claim 1. Furthermore, the invention relates to a molding device for producing molded parts for carrying out such a method. It is known (DE-PS 31 1D 185) to produce molded parts in which the at least one foot-accessible support is formed on the inside from a crampon, which is produced with the aid of a special installation device as part of the molding device during the manufacture and molding of the molded part Process is molded with. If the molded part is e.g. from a shaft element, e.g. from a manhole ring made of concrete, the crampons are concreted in from the inside during the shaping process.
- the invention has for its object to find a method for producing molded parts from molding material of the type mentioned in the preamble of claim 1, which eliminates the disadvantages mentioned and remedies the problems described, in particular simplifies and cheaper the manufacturing process of such molded parts and the Creates the conditions for an automatic, uninterrupted manufacturing process.
- the object is achieved in a method of the type defined in the preamble of claim 1 according to the invention by the features in the characterizing part of claim 1. Further advantageous process features of the invention and refinements thereon result from claims 2 to 23.
- the process according to the invention makes it possible to produce molded parts in which, because of the shaped supports with molded supports, separate crampons as independent elements are completely unnecessary. The associated expenditure on procurement, storage and provision as well as the incorporation into the mold is completely eliminated.
- Crampons to be inserted is limited. So you are less restricted with regard to the shapes and dimensions and special designs of the finished molded parts and you have a lot of creative freedom. Depending on the molding compound, this itself provides a relatively large surface roughness, so that the integrally molded supports already ensure greater slip resistance, which is also achieved without additional procedural measures during the manufacturing process. If the molded part is e.g. made of concrete, there is a relatively rough concrete surface in the area of the supports, which increases slip resistance. Incidentally, the integrated supports, also due to the increased slip resistance, increase the overall feeling of safety of the people who have to walk on a shaft formed from such shaft elements. Any repair work in the shaft can thus also be carried out more easily and safely, whereby this is also carried out more readily. Since the process is the
- the shaping of the supports does not lead to a possible weakening of the cross-section and a reduction in the strength and durability of the concrete part.
- the shaping of the supports, z. B. in the form of depressions, in the area of an inside wall thickening, and there on or in this wall thickening, so this inside wall thickening can at the same time to others
- Concrete is particularly suitable as a molding compound, and here any type of concrete, u. a. also
- Polymer concrete, boot concrete or similar concrete masses It is also advantageous if the concrete used has a water / cement factor of 0.4 or less. It is particularly advantageous if the molding compound is compressed for molding, in particular by shaking or the like. Vibrations.
- Shaping is removed from the mold, especially before the binder of the molding compound has set.
- the invention further relates to a molding device of the type mentioned in the preamble of claim 30, which is particularly suitable for carrying out the method according to claim 1 and the following.
- Shaping devices are known (DE-PS 31 10 185), which have already been explained at the beginning and, at the same time, enable the direct introduction of separate crampons during the shaping process during the production of the shaped part.
- the mandrel part is part of an installation device which has a receptacle with a support surface with centering for each crampon to be concreted and has a clamping device assigned to the receptacle and arranged on the mandrel part, by means of which the crampon positioned in the receptacle is held in this form.
- the clamping device has on the wall section of the mold core part e.g. a resilient element, which serves as a sealing element and / or compensating element and / or hold-down device.
- a molding device with a mold core part which can be moved by means of its own drive into its active closed position, in which it completes the shaping contour, and back into an opening position, in which the molded part can be removed from the mold, is obviously not suitable for producing such molded parts , in which the at least one support as a one-piece, material-uniform component of the molded part is shaped at the same time as it is molded from its molding compound.
- the invention has for its object to design a molding device of the type mentioned in the preamble of claim 30 so that this at the same time the molding of the at least one support as an integral part of the manufacture of moldings of the type mentioned Molded part made from its molding compound, and this in a simple, inexpensive and rational procedure.
- a molding device of the type defined in the preamble of claim 30 according to the invention by the features in the characterizing part of claim 30.
- Such a molding device is simple, reliable and inexpensive. It makes it possible during the normal shaping process of a molded part by shaking at the same time and without interrupting the automatic process from the inside to form at least one support as a one-piece, material-uniform component of the molded part from its molding compound.
- the shaped body provided for the molding which can be designed as a recess and / or as a hollow shape for the formation of a recess or a projection and which accomplishes this molding, is inexpensive, reliable and simple in construction.
- corresponding molded articles can also be placed outside the outer molded jacket, which then has corresponding openings in which such, e.g. about slide-like, shaped bodies are stored and guided and are movable back and forth.
- the shaped bodies e.g. can contain slide-like shaping cores, ventilation holes or openings which are controlled by suitable valves and which prevent the possible formation of negative pressure during removal from the mold by pulling out the moldings.
- the mold has at least one vibrator or the like vibrator, by means of which vibrating or the like vibration takes place with compression of the concrete mass.
- the concrete mass is thus compacted by shaking.
- the formwork is removed immediately after the shaping by compression, ie the demolding of the molded part produced. This is preferably done before the binder contained in the molding compound has set.
- the molding device has at least one central vibrator, which is contained in the mold core. A particularly good and uniform compression of the molding compound is achieved by such a central vibrating and thereby a structure that is as homogeneous as possible is achieved.
- a method and a molding device for producing molded parts from concrete are known per se (DE-OS
- the molded part at least in the area of a surface section, elevations and / or depressions and / or wall openings or the like.
- the core segment can have depressions and / or elevations on at least one surface section, by means of which corresponding elevations and / or depressions can be formed at corresponding locations on the molded part.
- the mandrel can have openings in the area of the parts movable relative thereto, in which the parts are stored and can be moved back and forth at least essentially in a sealed manner, which, as slide-like shaping cores, for shaping depressions and / or openings or the like.
- Recesses are formed in the molded part.
- this method and device have the purpose of producing such molded parts, e.g. Manufacture pipes, or the like in the form of the mentioned elevations and / or depressions and / or wall openings.
- Recesses contain a river bed-like river bed, which lowers the flow rate of the water flowing through and the deposit of humus and thus the settlement of
- Mosses, plants or the like makes possible, so that such a molded part, which is laid essentially as a horizontal pipe of a channel, does not lead to a corresponding ecological impoverishment during laying.
- molded parts in particular pipes which are laid approximately horizontally and form channels, supports which can be entered with the foot do not occur at all.
- the invention further relates to the use of a molding device for producing molded parts from molding compound according to claim 57.
- Fig. 1 shows a schematic axial longitudinal section
- parts of the molding device being in the release position which enables the molded part to be removed from the mold
- FIG. 8th each show a schematic axial longitudinal section of a molding device as part of a machine for shaping concrete parts according to a second or third or fourth or fifth or sixth or seventh exemplary embodiment, parts of the molding device also being used here for the demolding of the Molded part enabling release position, Fig. 8th
- FIG. 9 each a schematic horizontal
- the molding device 10 shown in FIG. 1 as the first exemplary embodiment is part of a machine (not shown further here). It is used to shape molded parts 11 from molding compound, in particular shaft elements 12 made of concrete, ceramic compounds, plastic or the like, e.g. Manhole rings, manhole necks, pipes or the like. Details of such shaping devices 10 and shaped parts 11 are e.g. from DE-PS 31 10 185, to which reference is made here to avoid unnecessary repetitions.
- the molded parts 11 are rotationally symmetrical here.
- the molded parts 11 are out of round, e.g. oval, elliptical, ovoid or otherwise out of round. Instead, the molded parts 11 can also be polygonal, e.g. square, be made.
- an essentially cylindrical molded part 11, in particular shaft element 12, is shown for clarification.
- the shaping device 10 has, for example, an approximately hat-shaped mandrel 15 which is hollow on the inside and can be exchangeably fastened to a central vibrator (not shown further).
- the attachment takes place, for example, in the area of a base plate 16.
- the mold core 15 is, for example, round. It has a circular cover 18 and an at least predominantly cylindrical one bottom core wall 19 leading to the base plate 16.
- the molding device 10 also includes an outer molding jacket 20, which can be exchanged in the same way as the molding core 15, which here likewise has an essentially cylindrical shape and has an upper flange 21.
- the mold jacket 20 surrounds the mold core 15 at a radial distance and is aligned coaxially therewith. The between the shell 20 and the
- Mold core 15 formed mold space 14 is closed at the lower end by a lower sleeve 24, which serves to shape the lower fold of the molded part 11.
- the lower sleeve 24 closes the molding space 14 at the bottom
- the molding device 10 also includes, as usual, an upper sleeve, not visible here, which serves to shape the upper fold of the molded part 11 and is shut down and pressed in on the machine side for this molding when the molding space 14 is filled with molding compound, e.g. has been filled with concrete, which is compacted by switching on the central vibrator and at the same time constantly refilling the molding compound, e.g. of the concrete, from above.
- molding compound e.g. has been filled with concrete, which is compacted by switching on the central vibrator and at the same time constantly refilling the molding compound, e.g. of the concrete, from above.
- the molding device 10 is designed so that by means of this during the manufacture of the molded part 11 from the inside at least one footable foot, when
- four supports 25 to 28 can be incorporated, which are formed as protrusions and / or depressions as protrusions and / or depressions as a one-piece, material-integral component of the molded part 11 when the molded part 11 is shaped.
- these supports 25 to 28 of the molded part 11 are formed as inwardly projecting supports, for example directed in approximately the radial direction. They can be approximately balcony-shaped protrusions that have treads.
- Supports 25 to 28 can also be molded into the molding compound. Since they then reduce the cross section, they can be molded into an inside wall thickening 29, for example in the form of a web which runs essentially along an inner surface line of the molded part 11.
- the supports 25 to 28 are formed from recesses 30 to 33 formed in the inside wall thickening 29 or respectively between the recesses and inwardly projecting projections.
- a protruding and approximately horizontally extending footbridge 35 to 38 which adjoins the inner surface 34 of the shaft element 12, in particular that of the wall thickening 29, is formed, which has, for example, a substantially flat upper surface, which has a Structure can be provided.
- each footbridge 35 to 38 can be grasped by hand when climbing the ladder thus formed, and thus serves as a stop.
- each recess 30 to 33 has approximately a rectangular shape with a flat ceiling 39 and a flat floor 40, as well as a rear wall 41 running approximately at right angles.
- the footbridge 35 located in front protrudes above the approximately horizontal and flat floor 40 and can thus be well grasped by hand.
- At least one bottom-side and downwardly opening passage 42 is formed in the bottom 40.
- the supports 26 to 28 arranged above it are also formed in the form of the depressions 31 to 33 with the foot webs 36 to 38.
- the supports 25 to 28, in particular depressions 30 to 33 can be arranged one below the other in a single-row sequence. Instead, they can also be arranged in a two-row sequence with a respective lateral offset and height offset from one another.
- the supports 25 to 28 each formed from the floor 40 with the foot bridge 35 to 38, wall parts on both sides at both ends of the foot bridge being omitted.
- Each support 25 to 28, for example each recess 30 to 33 or each projection is formed on the mold core 15 by means of an associated and correspondingly shaped counterpart.
- the mold core 15 can also have adjacent surface parts, by means of which the longitudinal area of the inside wall thickening 29, for example the web, is formed on the inside on the areas which correspond to the depressions 30 to 33
- the mandrel 15 has, for each support 25 to 28, for example each projection or depression 30 to 33, each with a foot web 35 to 3B, a mandrel part 45 to 48 which can be moved by itself and with respect to the remaining part of the mandrel 15 which is each provided with a shaped body 55 to 58 and which is always referred to below as "recesses", irrespective of whether it is designed as an inner recess or a protruding shaped body.
- Each recess 55 to 58 has a shape corresponding to the depression 30 to 33 to be formed and is assigned to this depression 30 to 33. In the first exemplary embodiment in FIG.
- each mold core part 45 to 48 can be moved in the horizontal direction according to arrow 44 with respect to the remaining part of the mold core 15 into the release position shown in FIG. 1 towards the interior of the mold core. In this release position, the molded part 11 can be removed from the mold. Furthermore, each mold core part 45 to 48 can be moved in the opposite direction into the mold space 14 and thus into its shaping position, in the recesses 55 to 58 of which an associated recess 30 to 33 can be formed in the molded part 11, in particular the shaft element 12.
- the first embodiment in Fig. 1 is the respective
- Notches 55 to 58 are approximately box-shaped. In the vertical section according to FIG. 1, each recess 55 to 58 has approximately a square shape. He is e.g. roughly rectangular, square or the like ..
- each recess core 55 to 58 can be moved individually and individually on the mold core 15 between the shown release position and the shaping position, e.g. is slidable, held and guided.
- each individual notch 55 to 58 has its own drive device 59 to 62, which can effect this movement between the release position and the shaping position.
- the drive device 59 to 62 is fixed in the interior of the mandrel 15 and is e.g. each from a pressure-operated working cylinder, which also serves as a horizontal guide element
- Each recess 55 to 58 does not consist of one part here, but is composed of two core parts, namely an upper one, which is open at the bottom
- Box part 65 to 68 movable in approximately vertical direction, e.g. Slidable, guided and actuatable supplementary parts 75 to 78, the box bottom of the recess core
- Each supplementary part 75 to 78 is relative to the associated box part 65 to 68 for shaping into a shape position not shown and before
- each supplementary part 75 to 78 has its own drive 69 to 72, which, for example, also consists of a pressure-operated working cylinder and which enables a displacement of each supplementary part 75 to 78 from the demolding position shown down to the shape position not shown and back.
- Each supplementary part 75 to 78 is guided on the box part 65 to 68 and / or on the mandrel part 45 to 48.
- Each supplementary part 75 to 78 has a groove 85 to 88 which is open at the bottom and by means of which the respectively assigned protruding one
- Foot bridge 35 to 38 of the support 25 to 28, in particular depression 30 to 33, of the molded part 11 is formed. It is evident that the base 40 and, furthermore, by means of the groove 85 to 88 of the additional part 75 to 78, the foot bridge 35 to 38 can be formed by means of the respective supplementary part 75 to 78.
- Each supplementary part 75 to 78 has at least one in the first embodiment in Fig. 1 e.g. protrusion 95 to 98 projecting vertically downwards, by means of which in the bottom 40 of the respective recess 30 to 33 the local downwardly open passage 42 can be formed.
- the at least one protrusion 95 to 98 is e.g. from a cylindrical bolt of sufficient length.
- each mandrel part 45 to 48 forms a holder for the recess core 55 to 5B formed thereon, the associated drive device 59 to 62 acting on this holder for a horizontal drive actuation in the direction of arrow 44.
- the recess cores 55 to 58 in particular the box parts 65 to 68, can be moved either in the radial direction or instead along a secant, in any case in the horizontal direction, between the release position shown in FIG. 1 and the shaping position, not shown, and guided, the horizontal guidance here can be carried out solely by the drive device 59 to 62, in particular the working cylinder.
- the supplementary parts 75 to 78 can be moved and guided up and down individually in the vertical direction according to arrow 43 between the demolding position shown and the shape position not shown, by means of the respectively assigned drive 69 to 72.
- a part 79 which is only designated for the supplementary part 75 and adjoins the downwardly open groove 85 and on which the associated drive 69 engages, engages through a window-shaped recess 49, which is shown in the form of the core part 45, with movement play.
- a molded part 11, in particular shaft element 12, is to be formed with supports 25 to 28 in the form of depressions 30 to 33, the individual molded core parts 45 to 48 are moved to the left into their shaping position by actuating the associated drive devices 59 to 62 in FIG. 1 .
- the supplementary parts 75 to 78 can be moved downward by actuating their drives 69 to 72 relative to the box parts 65 to 68 in FIG. 1, this movement being limited to urites, for example, by the fact that the part 79 designated in the supplementary part 75 strikes the lower edge of the recess 49 of the mold core part 45.
- the mold core parts 45 to 48 can be such that they form surface parts by means of which inner surface areas of the molded part 11, in particular shaft element 12, can be shaped, for example those surface parts which are adjacent to the supports 25 to 28, in particular depressions 30 to 33 .
- these supports 25 to 28 are worked into the inside wall thickening 29 of the molded part 11. This thickening of the wall 29 has, as an approximately longitudinally penetrating web, inner surfaces on the ovoid side, that of approximately vertical ones not shown here
- mold core parts 45 to 48 can also be used for this shaping, if necessary.
- the individual supplementary parts 75 to 78 are first moved upwards by means of their drives 69 to 72 in FIG. 1 into the demolding position shown in FIG. 1 and thereby into the interior of the box parts 65 to 68 postponed.
- This shifting movement can e.g. be limited by the fact that the additional parts 75 to 78 on the inside of the ceiling 39 in each recess 30 to
- recesses 55 to 58 of this type can also be used to form recesses 30 to 33 in which the bottom 40 - 1, instead of horizontally according to FIG. 1 - starting from the foot bridge 35 to 38 in FIG. 1 and running downwards in the process.
- protrusions 95 to 98 other correspondingly shaped passages 42 can of course also be produced.
- the at least one support 25 to 26 can also be provided with a reinforcement 99 which e.g. Part of a reinforcement part 100, e.g. a reinforcement cage, reinforcement ring or the like, which has a special shape adapted to it in the area of the support.
- a reinforcement 99 which e.g. Part of a reinforcement part 100, e.g. a reinforcement cage, reinforcement ring or the like, which has a special shape adapted to it in the area of the support.
- 100 larger reference numerals are used for the parts which correspond to the first exemplary embodiment according to FIG. 1, so that reference is made to the description of the first exemplary embodiment in order to avoid repetition.
- common drive 159 in particular a pressure medium-operated working cylinder, between the release position shown in FIG. 2 and the shaping position, not shown, can be displaced horizontally back and forth, wherein the drive 159 can also form the guide for the surface part 150 during this displacement movement.
- This surface part 150 which can be displaced horizontally back and forth in the direction of arrow 144 by means of the drive device 159, can be approximately U-shaped when viewed in horizontal cross-section, the two surface parts forming the U-legs then having inner surface regions of the molded part, in particular the inside wall thickening 29, can shape.
- Wall part of the mold core 115 is formed, which is the carrier of the recess cores 155 to 158.
- a further difference from the first exemplary embodiment in the second exemplary embodiment according to FIG. 2 is that a number of additional parts 75 to 78 are combined into groups and by means of a single drive 169 common to each other in the vertical direction according to the arrow 143 are movable between the demolding position shown in FIG. 2 and the mold position not shown.
- all four supplementary parts 175 to 178 are combined into a single group which can be actuated together by means of the drive 169.
- An actuating device 113 which can consist of a vertical holder to which all supplementary parts 175 to 178 are fastened, is used here for the simultaneous actuation of all supplementary parts 175 to 178, for example by means of part 179 shown for supplementary part 175.
- all of the recess cores 155 to 158 can be arranged in a single sequence with one another.
- two recess cores 55 and 57 can also be combined to form a group which is actuated together horizontally and vertically, which then serve to shape the depressions 30 and 32, respectively.
- the two other recess cores 56 and 58 can also be combined into a group of their own, which is also operated as a group horizontally and vertically and which shape the recesses 31 and
- the recess cores 255 to 258 are likewise combined to form a group which can be moved jointly between the release position shown and the shaping position not shown.
- the recess cores 255 to 258 each consist of a single box-shaped part, which e.g. is closed on all sides. These recess cores 255 to 258 can be moved and guided here along an arc path, which is illustrated by the arrow 252, between the release position shown and the shaping position, not shown.
- the recess cores 255 to 258, viewed in vertical cross-section, are here approximately curved, e.g. arcuate sections, boxes formed.
- the recess cores 255 to 25B are each mounted on the mold core 215 on the core wall 219 so as to be pivotable about an approximately horizontal axis 253.
- the recess cores 255 to 258 can be pivoted between the release position and the shaping position via a common actuating device 251, which can be acted upon by a drive 259 that is common to all.
- the common actuating device 251 has an actuating rod 254, which is oriented approximately vertically here.
- All recess cores 255 to 258 are pivotably articulated on the actuating rod 254 at a distance from the respective horizontal axis 253 via an arm 263, which is fixed thereon and extends radially to the horizontal axis 253.
- the actuating rod 254 thus connects all the arms 263 located one above the other in an articulated manner.
- the drive 259 which is common to all, in particular pressure-operated working cylinder, articulates with the end of its piston rod 264 on an arm 273 which, for example, extends the arm at the lowest recess 255 in FIG. 3 263 runs and can be firmly connected or in one piece.
- the mold core 250 contains in its core wall 219 in the region of each recess core 255 to 258 recesses 274 which correspond to the shape and size of the respective recess core 255 to 258.
- the recess cores 255 to 258 can thus be moved through the latter corresponding recesses 274 in the wall 219 of the mold core 215 between the release position according to FIG.
- the shaping device 210 thus makes it possible. Support in the form of indentations 230 to 233 in the wall of the molded part 211 and to be incorporated in such a way that the respective indentation 230 to 233 extends within this wall from its inner surface 234 towards its outer surface 209, and this, for example, approximately radially Direction.
- this shaping device 210 supports as inner recesses 230 to 233 are integrally molded into the wall of the shaped part 211 when it is shaped.
- the fact that supports in the form of incorporated recesses 230 to 233 are introduced into the wall of the molded part 211 reduces the wall cross section of the molded part 211 in the region of these recesses 230 to 233.
- the molded part 211 has an outer, outwardly directed and, for example, essentially longitudinal wall thickening 208 on the area on which the recesses 230 to 233 are formed, which is obtained during the shaping of the molded part 211 is shaped at the same time, and by means of a corresponding shape tion of the shaped jacket 220.
- an outer, outwardly directed and e.g. are formed essentially longitudinally through wall thickening 308, this taking place on the wall area of the molded part 311, in which supports in the form of recesses 330 to 333 are formed in the wall of the molded part 311 during manufacture.
- these depressions 330 to 333 viewed in the vertical cross section, have approximately the shape of a square, specifically a rhombus here.
- the shape of the rhombus means that the base 340, which is shown in the depression 330, starting from the respective molded-in foot bridge 335 to 338, slopes outwards in the radial direction and downwards.
- the depressions 330 to 333 have e.g. Rectangular farm, in which case the depressions 330 to 333 can be arranged one below the other in a single-row sequence or instead can be arranged in a two-row sequence with a respective lateral offset and height offset from one another.
- the recess cores 355 to 358 are here also formed as boxes which are approximately rectangular in horizontal cross section and which are approximately square in shape and are approximately rhombic in the vertical section shown. All recess cores 355 to 358 are combined into a group and attached to an all common holder 380, which is part of the actuator 351.
- the holder 380 extends vertically.
- This is attacked by a drive 359, which consists of a pressure-operated working cylinder, which is located inside the Mold core 315 is arranged obliquely.
- the piston rod 364 is fixed here with both ends in the mandrel 315, while the cylinder housing of the drive 359 can be displaced translationally in the oblique direction according to arrow 244 on the piston rod 364.
- the housing of the drive 359 is fixedly connected to the holder 380.
- An oblique drive actuation by means of the drive 359 in the direction of arrow 244 thus means that the rhombic recess cores 355 to 358 translate back and forth between the release position shown and the shaping position, not shown, along an oblique line can be moved here, the recess cores 355 to 358, as in the third exemplary embodiment in FIG. 3, can also have correspondingly shaped and dimensioned recesses 374 in the wall 319 of the mold core 315.
- the recess cores 355 to 358 are thus on the mold core
- the depressions 330 to 333 which can be formed into the wall of the molded part 311 by means of the rhombic recess cores 355 to 35B are, as in the third exemplary embodiment according to FIG. 3, such that each recess 330 to 333 extends in the direction from the inner surface 334 of the molded part 311 whose outer surface extends, for example in a radial direction.
- an inner partition 407 is integrally formed on the molded part 411, which runs along a secant and / or approximately parallel to a vertical diametrical plane of the molded part 411 and one with the
- Shaped part 411 forms a one-piece part which runs at a distance from the part of the inner surface 434 of the shaped part 411 which is covered by it. Apart from this intermediate wall 407, the shaped part 411 has a cylindrical shape with a constant cross-section all around.
- the supports 425 to 428 are integrally molded in this intermediate wall 407 when the molded part 411 is produced. In another embodiment, not shown, the supports 425 to 428 can also be formed on the intermediate wall 407.
- These supports 425 to 428 are formed here in that recesses 430 to 433, in particular window-shaped openings, are formed in the intermediate wall 407 in a single-row or double-row arrangement. These recesses 430 to 433 are, viewed in the horizontal and vertical cross section, quadrangular, for example approximately rectangular.
- a single drive 459 which acts on the holder 380, serves for the horizontal actuation between the shown release position and the not shown shaping position in the direction of arrow 444.
- the piston rod 464 of the drive 459 is fixed with both ends in the mandrel 415 and the cylinder of the
- the mandrel 415 carries surface parts 405 and 406 which serve to shape the intermediate wall 407. These surface parts 405, 406 thus form inner surface regions of the intermediate wall 407.
- Surface parts 405 and 406 of the mold core 415 are an integral part of the mold core 415. They are designed as surface parts 405, 406 running parallel to one another, with both ends on the cylindrical core wall
- the inner surface part 406 contains the recess cores 455 to 458, approximately window-shaped recesses 474, through which the recess cores 455 to 458 in the direction when the drive 459 is actuated and the recess cores 455 to 456 are moved horizontally from the release position according to FIG. 5 into the shaping position can drive onto the other surface part 405, for example until they hit the other surface part 405.
- the holder 480 is therefore only the carrier of the recess cores 455 to 458 projecting therefrom, without the holder 480 participating in the shaping of other surface areas of the molded part 411.
- one surface part 406 is firmly connected to the holder 480. It forms a surface part which is movable relative to the remaining part of the mandrel 415 and which forms the inner surface regions of the intermediate wall 407.
- This surface part thus forms a horizontally movable mold core segment which carries the recess cores 455 to 458 and is horizontally movable with them between the release position according to FIG. 6 and the shaping position, not shown.
- the movable surface part 406 can thus be regarded as a movable wall section of the mold core 415.
- the seventh exemplary embodiment shown in FIG. 7 is similar to the third exemplary embodiment according to FIG. 3 as far as the arrangement of the recess cores 555 to 556 located in the interior of the mandrel 515 is concerned.
- the molded part 511 according to the seventh exemplary embodiment in FIG. 7 also has an outer, outwardly directed and, for example, essentially longitudinal wall thickening 508, which is also formed during the production of the molded part 511.
- recesses 581 to 583 which are open from the outside to the outside are formed in this outer wall thickening 508 according to FIG. 7, each of which is at a height between two vertically one after the other in the wall of the
- Molding 511 molded recesses 530 to 533 are provided. These outer recesses 581 to 583 are approximately triangular in cross section here, which results in a cross section of the wall of the molded part 511 that is as uniform as possible in this area.
- the molded jacket 520 has wall openings 591 to 593, the outer jacket cores 594 being assigned to the molded jacket 520 at the height of these wall openings 591 to 593 and being driven by a drive 590, e.g. of a pressure-operated working cylinder, in horizontal
- Drive 590 can also act as a horizontal guide
- outer recess cores 594 individually by means of a
- Inwardly protruding and longitudinally extending web is formed, in the region of the molded-in depressions 630, 631 which delimit them on both sides
- the wall parts 602 and 604 have outer surfaces on both sides in FIG. 8. Corresponding, firmly attached to the mandrel 615 serve to shape these outer surfaces
- Area silos 622 and 523 The 'inside of the form core 615 facing front surface of the inside wall thickening 629 is formed here by the surface part 650, which in the horizontal direction according to arrow 644 by means of the drive 659 into the shaping position shown in FIG. 8 or
- Flat part 650 recessed cores 655 and 656 are attached, which e.g. are placed offset in the vertical direction and laterally to one another and allow the formation of depressions 630, 631 and others arranged in a two-row sequence.
- recess cores 555 of one group and recess cores 656 of the other group can be combined to form a common group attached to surface part 650.
- the radially inward-facing narrow surface of the wall parts 602, 603 and 604 and the surface area between the individual depressions 630, 631 and others are thus formed by the surface part 650.
- an inside wall thickening 729 is formed on the molded part 711, into which depressions 730 are introduced in the manner described, for example in a single-row sequence.
- the wall parts 702 and 704 on both sides are also formed here by surface parts 722 and 723 which are fastened to the mold core 715.
- These surface parts 722 and 723 are designed in cross-section such that, in the case of the respective wall thickening 729, in particular the web designed in this way, gripping parts which can be grasped by hand on the outside of the wall parts 702, 704 are formed, for example as protruding and preferably longitudinally running run strips 701 are formed.
- the surface of the inside wall thickening 729 facing the inside of the mold core 715 can, as in the eighth embodiment according to FIG. B. are formed by a surface part 750, at zzsr. the Antrieo 759 analogue. 5 attacks.
- the respective molded part thus has one-piece elements. 1 and 2 of the approximately web-shaped, inside wall thickening 29 and 129.
- the lower sleeve 24 or 124 is adapted to this inside wall thickening 29 or 129 in that the lower sleeve 24 or 124 in the region of the wall thickening 29 or 129 has a correspondingly shaped and adapted support part 84 or 184 which supports the wall thickening 29 or 129 and is integral with the lower sleeve 24 or 124.
- the lower sleeve is, as is not shown further, for supporting the wall parts 602 to 604 or 702, 704 with appropriately shaped and dimensioned support parts.
- the molded part 211, 311, 511 is provided on the outside with an outer wall thickening 208, 308, 508, the lower sleeve 224 or 324 or 524 is in the region of this outer wall thickening a corresponding support part 284 or 384 or 584.
- the lower sleeve 424 is provided in the region of this intermediate wall 407 with a supporting part 484, which here consists of a correspondingly dimensioned and arranged connecting web.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Moulds, Cores, Or Mandrels (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4100161A DE4100161A1 (de) | 1991-01-05 | 1991-01-05 | Verfahren und vorrichtung zum herstellen von formteilen aus formmasse |
DE4100161 | 1991-01-05 | ||
PCT/DE1991/000978 WO1992011981A1 (de) | 1991-01-05 | 1991-12-10 | Verfahren und vorrichtung zum herstellen von formteilen aus formmasse |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0565540A1 true EP0565540A1 (de) | 1993-10-20 |
EP0565540B1 EP0565540B1 (de) | 1995-07-19 |
Family
ID=6422576
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92901074A Expired - Lifetime EP0565540B1 (de) | 1991-01-05 | 1991-12-10 | Verfahren und vorrichtung zum herstellen von formteilen aus formmasse |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0565540B1 (de) |
AT (1) | ATE125193T1 (de) |
AU (1) | AU9093391A (de) |
DE (2) | DE4100161A1 (de) |
PL (1) | PL167579B1 (de) |
WO (1) | WO1992011981A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4236193A1 (de) * | 1992-10-27 | 1994-04-28 | Willi Goebel | Abwasserschacht |
DE20122914U1 (de) * | 2001-03-06 | 2009-10-01 | Kobra Formen Gmbh | Form zur Herstellung von Formkörpern |
DE10147572B4 (de) * | 2001-09-26 | 2006-08-24 | Mörlenbacher Betonwerk Richard Wagner GmbH & Co. KG | Verfahren und Vorrichtung zum Herstellen von Stein-Formlingen sowie Stein-Formling |
DE102005058404B4 (de) * | 2005-12-07 | 2007-10-18 | Kobra Formen Gmbh | Vorrichtung zur Herstellung von Betonformsteinen sowie Formensystem und Formeinsatz hierfür |
CN105583938A (zh) * | 2014-10-20 | 2016-05-18 | 江俊昇 | 表面具有饰件的建筑基材的制造方法、弹性制模及其制品 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7408145U (de) * | 1974-06-06 | Buderus'sch Eisenwerke | Schachtelement für Revisionsschächte | |
GB209931A (en) * | 1922-12-28 | 1924-01-24 | Reginald Brown | Improvements in manholes or inspection chambers for sewers or drains |
US2680276A (en) * | 1952-02-07 | 1954-06-08 | Filangeri Dominick | Cesspool mold |
CH498987A (de) * | 1968-02-21 | 1970-11-15 | L Geiss Guenther | Schacht aus Fertigteilen |
DE1708617B2 (de) * | 1968-02-21 | 1976-07-08 | Geiss, Günter L., 7760 Radolfzell | Schacht aus fertigteilen |
DE2002361B2 (de) * | 1970-01-20 | 1975-05-07 | Balda-Werke Photographische Geraete Und Kunststoff Gmbh & Co Kg, 4980 Buende | Verfahren zur Herstellung eines Kamera-Suchergehäuses aus Kunststoff und Vorrichtung zur Durchführung des Verfahrens |
FR2233858A5 (de) * | 1973-06-12 | 1975-01-10 | Tuyaux Bonna | |
DD107622A1 (de) * | 1973-12-03 | 1974-08-12 | ||
JPS5420846Y2 (de) * | 1976-08-10 | 1979-07-26 | ||
DE3110185C2 (de) * | 1981-03-17 | 1988-09-08 | Georg Prinzing GmbH & Co KG Betonformen- und Maschinenfabrik, 7902 Blaubeuren | Formeinrichtung zur Formgebung von mit mindestens einem Steigeisen versehenen Betonteilen wie Schachtringen, Schachthälsen od.dgl. |
DE3400349A1 (de) * | 1984-01-07 | 1985-07-18 | Prinzing Georg Gmbh Co Kg | Verfahren und vorrichtung zum herstellen von formteilen aus beton |
DE3711331A1 (de) * | 1987-04-03 | 1988-10-20 | Passavant Werke | Schachtabschluss |
GB2215265B (en) * | 1988-03-02 | 1992-03-25 | Milton Pipes Limited | Moulds |
DE4022284A1 (de) * | 1989-07-31 | 1991-02-07 | Langenbach Klaus | Einstueckig aus kunststoff gespritzter behaelter |
EP0434593B1 (de) * | 1989-12-16 | 1993-09-15 | Sakurai Kenzai Sangyo Kabushiki Kaisha | Betonrohr mit Stufe |
-
1991
- 1991-01-05 DE DE4100161A patent/DE4100161A1/de not_active Withdrawn
- 1991-12-10 AU AU90933/91A patent/AU9093391A/en not_active Abandoned
- 1991-12-10 DE DE59106059T patent/DE59106059D1/de not_active Expired - Fee Related
- 1991-12-10 WO PCT/DE1991/000978 patent/WO1992011981A1/de active IP Right Grant
- 1991-12-10 PL PL91299430A patent/PL167579B1/pl unknown
- 1991-12-10 AT AT92901074T patent/ATE125193T1/de active
- 1991-12-10 EP EP92901074A patent/EP0565540B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9211981A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1992011981A1 (de) | 1992-07-23 |
DE59106059D1 (de) | 1995-08-24 |
EP0565540B1 (de) | 1995-07-19 |
PL167579B1 (pl) | 1995-09-30 |
DE4100161A1 (de) | 1992-07-09 |
ATE125193T1 (de) | 1995-08-15 |
AU9093391A (en) | 1992-08-17 |
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