Filler and demolding system for a non-linear molded product
11472062 · 2022-10-18
Assignee
Inventors
Cpc classification
B28B13/0295
PERFORMING OPERATIONS; TRANSPORTING
B28B13/02
PERFORMING OPERATIONS; TRANSPORTING
B28B1/14
PERFORMING OPERATIONS; TRANSPORTING
International classification
B28B13/02
PERFORMING OPERATIONS; TRANSPORTING
Abstract
A filling apparatus for filling a mold volume of a mold with mold material. The filling apparatus comprises a frame, a retention plate mounted to the frame, and a shovel mounted to the frame, the shovel being complementary to the retention plate to define a reservoir for containing the mold material. The shovel is movable relatively the frame to open the reservoir for the mold material to fall onto the mold to fill up the mold volume, to scrape the surface of the mold and thereby to push exceeding mold material over the retention plate, and to abut the retention plate to form the reservoir. The filling apparatus is adapted to refill the reservoir with exceeding mold material once the mold volume is filled with mold material.
Claims
1. A filling apparatus for filling a mold volume of a mold with mold material, wherein the mold has a surface, the filling apparatus comprising: a frame; and an articulated shovel extending from the frame, the shovel forming a reservoir containing the mold material, wherein the shovel comprises an attacking edge that is movable according to a non-rotational non-linear path: to open the reservoir to drop the mold material onto the mold to fill up the mold volume; and to scrape the surface of the mold and thereby to remove and to hold exceeding mold material.
2. The filling apparatus of claim 1, further comprising a retention plate mounted to the frame, wherein the articulated shovel is complementary to the retention plate to form the reservoir.
3. The filling apparatus of claim 2, wherein during the scraping of the surface of the mold, the articulated shovel pushes exceeding mold material over the retention plate until the articulated shovel abuts the retention plate to form the reservoir.
4. The filling apparatus of claim 2, wherein the articulated shovel comprises an edge, wherein the retention plate comprises a face, and wherein the edge abuts the face to form the reservoir.
5. The filling apparatus of claim 2, wherein the articulated shovel comprises side plates, wherein the side plates hold the mold material transversally to a line of contact between the articulated shovel and the retention plate.
6. The filling apparatus of claim 2, wherein the retention plate is fixedly mounted to the frame.
7. The filling apparatus of claim 1, further comprising a framework on which is mounted the frame, wherein the frame is movable relative to the framework to thereby change a distance between the mold and the frame.
8. The filling apparatus of claim 1, wherein the articulated shovel comprises a first arm rotatably mounted to the frame and a second arm rotatably mounted to the first arm, whereby a combined movement and rotation of the first arm and the second arm allows the articulated shovel to adopt a plurality of angles relative to the frame.
9. The filling apparatus of claim 8, wherein the mold comprises walls delimiting the mold volume, the walls having a first flat top surface and a second flat top surface, wherein the first flat top surface and the second flat top surface are not in a same plane and wherein the articulated shovel, as a result of the combined movement and rotation of the first arm and the second arm is adapted to scrape the exceeding mold material about the walls.
10. The filling apparatus of claim 9, further comprising jacks connected to the first arm and the second arm to impart the movement and rotation of the first arm and the second arm.
11. The filling apparatus of claim 1, wherein the mold comprises another mold volume and a central spine, wherein the mold volume and the other mold volume are located on opposite sides of the central spine, and wherein the filling apparatus comprises another reservoir operating concurrently with the reservoir, with the reservoir operating in relation with the mold volume and the other reservoir operating in relation with the other mold volume.
12. The filling apparatus of claim 11, further comprising another articulated shovel forming the other reservoir, wherein the articulated shovels are disposed in a mirror-like fashion.
13. A filling apparatus for filling a mold volume of a mold with mold material, wherein the mold has a surface, the filling apparatus comprising: a frame; and an articulated shovel extending from the frame, the articulated shovel comprises an attacking edge that is movable between: (a) a closed-reservoir position in which the attacking edge closes an enclosure; (b) an open-reservoir position in which the attacking edge is away from the enclosure, thereby opening the enclosure; (c) a first scraping position in which the attacking edge neighbors the mold; and (d) a second scraping position in which the attacking edge neighbors the mold distant from the first scraping position.
14. The filling apparatus of claim 13, wherein the positions (a) to (d) define a non-linear path.
15. The filling apparatus of claim 13, wherein the positions (a) to (d) define a non-rotational path.
16. The filling apparatus of claim 13, further comprising a retention plate mounted to the frame, wherein the articulated shovel is complementary to the retention plate to form the reservoir.
17. The filling apparatus of claim 16, wherein during the scraping of the surface of the mold, the articulated shovel pushes exceeding mold material over the retention plate until the articulated shovel abuts the retention plate to form the reservoir.
18. The filling apparatus of claim 16, wherein the articulated shovel comprises an edge, wherein the retention plate comprises a face, and wherein the edge abuts the face to form the reservoir.
19. The filling apparatus of claim 13, further comprising a framework on which is mounted the frame, wherein the frame is movable relative to the framework to thereby change a distance between the mold and the frame.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) Further features and advantages of the present disclosure will become apparent from the following detailed description, taken in combination with the appended drawings, in which:
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(15) It will be noted that throughout the appended drawings, like features are identified by like reference numerals.
DETAILED DESCRIPTION
(16) The embodiments will now be described more fully hereinafter with reference to the accompanying figures, in which realizations are illustrated. The foregoing may, however, be embodied in many different forms and should not be construed as limited to the illustrated realizations set forth herein.
(17) With respect to the present description, references to items in the singular should be understood to include items in the plural, and vice versa, unless explicitly stated otherwise or clear from the text. Grammatical conjunctions are intended to express any and all disjunctive and conjunctive combinations of conjoined clauses, sentences, words, and the like, unless otherwise stated or clear from the context. Thus, the term “or” should generally be understood to mean “and/or” and so forth.
(18) Recitation of ranges of values and of values herein or on the drawings are not intended to be limiting, referring instead individually to any and all values falling within the range, unless otherwise indicated herein, and each separate value within such a range is incorporated into the specification as if it were individually recited herein. The words “about,” “approximately,” or the like, when accompanying a numerical value, are to be construed as indicating a deviation as would be appreciated by one of ordinary skill in the art to operate satisfactorily for an intended purpose. Ranges of values and/or numeric values are provided herein as examples only, and do not constitute a limitation on the scope of the described embodiments. The use of any and all examples, or exemplary language (“e.g.,” “such as,” or the like) provided herein, is intended merely to better illustrate the exemplary realizations and does not pose a limitation on the scope of the embodiments. No language in the specification should be construed as indicating any unclaimed element as essential to the practice of the embodiments.
(19) In the following description, it is understood that terms such as “first”, “second”, “top”, “bottom”, “above”, “below”, and the like, are words of convenience and are not to be construed as limiting terms unless explicitly stated otherwise, for physical or environmental reasons, or clear from the text.
(20) In embodiments, there are disclosed apparatuses and methods for molding molded products from a mold made of a flexible material. According to embodiments, the molded products are manufactured non-linear molded products (e.g., corner stones 40, which will be used from now on in the present description,
(21) In further embodiments, there are disclosed apparatuses and methods for separating molded products from a mold made of a flexible material. According to embodiments, the molded products are manufactured corner stones.
(22) Embodiments further disclose a mold made of flexible material for the molding and demolding of molded products. According to embodiments, the molded products molded and demolded from the mold are manufactured corner stones.
(23) Referring now to the drawings, and more particularly to
(24) Referring now to
(25) At the extremity of each of the second slope bodies 72 are outer spines 74 parallel to the central spine 64. Pins 66 and 76 parallel to the central spine 64 further extend beyond the mold 50 from the central spine 64 and the outer spines 74. According to the foregoing embodiment, there is a mold volume 54 on one side of the central spine 64 and another mold volume on the other (opposite) side of the central spine 64.
(26) According to an embodiment (not shown), there is no central spine. There are only outer spines and a mold volume therebetween.
(27) The mold body 52 is formed of a substantially flexible (and resilient) material capable of being flexed and deformed, for example from application of diverging forces on the outer spines 74 relative to the central spine 64, and returning to its original shape, for example once the diverging force is released therefrom.
(28) In order to set relative coordinates, the mold 50 comprises side by side mold volumes 54 in the longitudinal direction parallel to the central spine 64, the outer spines 74 and the pins 66 and 76. The spines 64 and 74 are thus transversally distant from each other.
(29) Referring back to the
(30) Referring to
(31) The filling apparatus 100 comprises a framework 105 on which in movably mounted a frame 130, the frame 130 being movable vertically relative to the framework 105. The filling apparatus 100 further comprises a pair of shovels 110 having an attacking edge 116. The shovels 110 are rotatably mounted to a frame 130 which can be lowered and raised. The filling apparatus 100 comprises for each shovel 110 a first arm 112 rotatably mounted to the frame 130, and a second arm 122 rotatably mounted to the first arm 112. The shovel 110 is fixedly mounted to the second arm 122, extending downward so that a reservoir 155 is located under the first arm 112.
(32) A first jack 114, mounted at one extremity to the frame 130 and at the other extremity to the first arm 112 distant from the shovel 110, drives the position of the first arm 112. A second jack 124, mounted at one extremity to the first arm 112 and at its other extremity to the second arm 122 distant from the shovel 110, drives the position of the second arm 122 relative to the first arm 112. It is understood that a combined movement and rotation of the first arm 112 and the second arm 122 allows the shovel 110 to adopt a plurality of angles relative to the frame 130. A retention plate 118 defines a retention face 119 complementing the shovel 110 to define the reservoir 155 for containing mold material 90 and in consequence preventing the mold material 90 to exit the reservoir 155 unintentionally.
(33) Accordingly, complementary shovel 110 and retention plate 118 form a pair of complementary enclosure components defining a reservoir 155 for containing mold material 90. The complementary enclosure components are movable relatively to each other between a hold position and a release position to have the reservoir 155 either holding or releasing its content. In the release position, the complementary enclosure components are away from each other, whereby having the reservoir open (i.e., not formed). In the hold position, the complementary enclosure components abut each other, whereby having the reservoir formed and holding the mold material therein.
(34) At a first step illustrated on
(35) Afterwards, as shown in
(36) One must note that the general V shape of the mold 50 and the retention plates 118 pressed against the mold 50 allow containment of more material then what is needing to fill up the mold volumes 54.
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(39) According to an embodiment, the carrier 30 comprises safeguards (not shown) located beyond the mold 50 and having a shape corresponding to the shape defined by the first top surfaces 84 and the second top surfaces 94. The shovels 110 comprises guides (not shown) extending to the location of the safeguards that prevent the shovels 110 when scraping the exceeding mold material 90 to be lowered to a level where the attacking edge 116 would attack the mold 50, risking premature wear of the mold 50 or even to break the mold 50.
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(44) Accordingly, the complementary enclosure components are further movable between a mold distant position (
(45) The next step is illustrated through
(46) It is worth noting that the filling of the filling apparatus 100 is not illustrated; the method and devices for filling such a filling apparatus 100 with mold material instead of filling a mold being well known by persons skilled in the art.
(47) It is further worth noting that the nature and shape of the mold 50 are not limiting characteristics with respect to the filling apparatus 100. According to available embodiments, the mold 50 may take other shapes to generates round-faces corner stones 40 and alternative shaped-face corner stones 40. The shape of the back face of the corner stones 40 may further vary, with the corner stones 40 comprising extremity apexes for demolding as will be discussed later.
(48) The mold is particularly shaped to have the face of the corner stones 40 facing downward to facilitate demolding operation as to protect the face of the corner stones from undesired contact with other operating components during the molding operation as the demolding operation.
(49) According to an alternative embodiment (not shown), the filling apparatus may further comprise a single reservoir better adapted for molds (not shown) being free of central spine 64. Such a single-reservoir filling apparatus may be adapted to flat molds (not shown), when the flat molds 50 are for example laid in a sloped position allowing to push up exceeding mold material towards a retention plate 118.
(50) Finally, size and shapes of side plates 132 (identified on
(51) According to an embodiment, a conveyor system (not shown) displaces the molds along the orientation of the central spines 64 and of the outer spines 74.
(52) Once the mold 50 being removed from under the filling apparatus 100, the mold 50 with its carrier 30 are placed on a rack for a curing period. Once the curing period is completed, the manufactured corner-stone product is ready to be demolded, or in other words removed from the mold 50.
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(54) The perspective view of
(55) Accordingly, the demolding apparatus 200 operates according to three (3) degrees of freedom. A first degree of freedom is defined in the jaws 222 moving between a free position away from the mold 50, and a holding position contacting the mold 50. A second degree of freedom is defined in the jaws 222 moving between a lifted position distant from the bed 252 or carrier 30, and a pressing position closer to the bed 252 or carrier 30. A third degree of freedom is defined in the jaws 222 moving between a carrier position about the carrier 30 and away from the bed 252, and bed position about the bed 252 and thus away from the carrier 30. These degrees of freedom are illustrated through the sequence of operations performed throughout the demolding process as shown on
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(58) According to an embodiment, the central pins 66 and the external pins 76 extend inwardly in the mold 50 as a single component, a rod, longer than the mold 50 and extending beyond on both sides as above discussed. The rod embodiment provides a rigid structure for the mold 50, allowing to raise the mold 50 therewith.
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(60) Furthermore, as illustrated, the term grabbing in the present context consists in the external pin 76 entering in an opening 234. One must understand that grabbing intends to cover any complementary functionality between the jaws 222 and the mold 50. Examples comprise allowing the jaws 222 to raise the mold 50 from the carrier 30 when the pin 76 contacts the bottom contacting face 235 of the opening 234. Examples further comprise forcing a downward displacement of a portion of the mold 50 when the pin 76 when the top contacting face 237 of the opening 234 contacts the pin 76.
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(66) Referring to
(67) According to an embodiment (not shown), an automated system is adapted to handle the manufactured corner stones 40 from the moment they are partially removed from the mold 50 to further processing of the manufactured corner stones 40. Embodiments comprise use of brushes or pneumatic plungers as aids in removing the manufactured corner stones 40 from the mold 50. According to an embodiment, the automated system is further adapted to inspect the mold 50 once the manufactured corner stones 40 are removed and/or to operate maintenance operations (brushing, cleaning, applying compound, etc.) over the empty mold 50.
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(70) In order to set relative coordinates, the bed 252 comprises a bed face 253 having a longitudinal direction parallel to the longitudinal direction of the mold 50 to be laid thereon. The bed face 253 has a bed shape, illustrated as a symmetrical arched bed shape, according to the transversal orientation. When a mold is laid down on the bed 252, the resting faces 86, 96 of the mold 50 rests freely over the bed 252 with free space remains between at least part of the resting faces 86, 96 of the mold 50 and the bed face 253 about at least one of the longitudinal outer spines 64, 74 of the mold 50.
(71) In relation with the relative coordinates of the mold 50, the mold 50 comprises side by side mold volumes 54 in the longitudinal direction parallel to the central spine 64, the outer spines 74 and the pins 66 and 76. The outer spines 64 and 74 are thus transversally distant from each other.
(72) The herein described deformation of the mold 50 in order to partially release the manufactured corner stones 40 from the mold 50 has significantly decreased the number of defects on manufactured corner stones 40 over the methods of the prior art. The shape of the bed 252 and the controlled speed at which the mold 50 is forcibly deformed result in a gradual demolding of the manufactured corner stones 40 from the mold 50, which results in significantly decreasing the costs of manufacturing corner stones 40 and the amount of lost material. Thus, according to embodiments and design specifications of the mold 50 (material, configuration, number of mold volumes 54 per mold 50, etc.) and the corner stones 40 (shape, dimensions, molding material, etc.), the deformation speed is set to match a particular value or curve over the demolding processes, the value or curve being set based on testing.
(73) Now returning to the figures,
(74) Once the mold 50 is clean, i.e., the manufactured corner stones 40 removed therefrom, and cleaned from residues of mold material 90, the mold 50 is ready to be removed from the demolding station 250. The removing of the mold 50 includes the steps of lifting the mold 50, moving the mold 50 laterally so that the mold 50 resides above the carrier 30, lowering the mold 50 to lay down the mold 50 on the carrier 30, and releasing the mold 50 from the jaws 222. These steps may be illustrated through
(75) One must understand from the present disclosure that the different driving components (e.g., jacks, and more precisely hydraulic jacks) are operated according to power engine 270 and controls 280 (see
(76) Accordingly, even though the above embodiments have been described without specific reference to the control aspect, one must understand that a variety of control configurations are available, involving manual controls, processors, sensors and/or others not herein described components that are well known to a person skilled in the art of automation.
(77) According to an embodiment, the mold 50 consists in a deformable mold 50 for manufacturing corner stones 40 having at least a first spine 64 and a second spine 74. Each one of the first spine 64 and the second spine 74 offers a longitudinal rigidity to the mold 50. Each one of the first spine 64 and the second spine 74 further feature handling components (e.g. first pins 66 and second pins 76) capable of receiving pressure to distance the first spine 64 and the second spine 74 from each other, hence to deform the mold 50 to ease removal of the manufactured corner stones 40 from the mold 50.
(78) According to an embodiment, the first pins 66 and/or the second pins 76 comprise notches (not shown) to prevent the first pins 66 and/or the second pins 76 to slide when grabbed by the jaws 222. According to the embodiment, the notches are located on the lower side of the first pins 66 and/or the second pins 76. According to an embodiment, the first pins 66 and/or the second pins 76 feature abutment components (not shown) defining a shoulder beyond the location wherein the jaws 222 grab the first pins 66 and/or the second pins 76.
(79) Referring now to
(80) At step 302, the method comprises filling up the reservoir(s) of a filling apparatus with mold material.
(81) At step 304, the method further comprising positioning a mold comprising an apex and the reservoir(s) in an aligned configuration, the reservoir(s) of the filling apparatus being located above the mold in a mold filling position. According to an embodiment, the mold consists in a V-shaped mold comprising a mold volume below a mold top face. The V-shaped mold therefore comprises a back comprising two sections generating together the V shape, a front comprising the mold top face, and the mold volume(s) in-between wherein mold material defining an enclosure for mold material to cure to manufacture a molded product.
(82) At step 306, the method further comprises opening the reservoir(s) of the filling apparatus. Upon its opening, the mold material held in the reservoir(s) is released from the reservoir(s) and falls on the mold.
(83) At step 308, the method (optionally) comprises having the mold forced to vibrate to have the mold material take place in the mold volume(s) of the mold.
(84) At step 310, the method comprises lowering the retention plate and the shovel to the mold scraping position. Accordingly, the method comprises having a retention plate part of the filling apparatus abutting about extremity of mold volume(s) and a shovel part of the filling apparatus abutting about a second extremity of mold volume(s).
(85) At step 312, the method comprises moving at least one of the retention plate and the shovel toward the other so as to scrape the mold material in-between from the top of the mold toward the other. When the retention plate and the shovel are in contact, they form a reservoir holding the exceeding mold material scraped from the top of the mold.
(86) At step 314, the method comprises lifting the reservoir(s) up in a mold filling position.
(87) At step 316, the method comprises moving the mold and the filling apparatus away from each other, freeing the filling apparatus to fill another mold with mold material.
(88) Referring now to
(89) At step 352, the method comprises placing the V-shaped deformable mold comprising two outer spines and handling components relative to the spines on a bed wherein at least part of the deformable mold is not supported by the bed. According to an embodiment, the mold holds one or more molded manufactured corner stones. According to embodiments, the molded product consists in another type of molded product, wherein the molded product is molded using one of a V-shaped mold, a U-shape mold or another shape of deformable mold comprising a resting face having a convex shape. According to other embodiments, the mold has a different shape of a resting face, with the bed shape and the mold shape complementing each other in a functional manner as described herein.
(90) At step 354, the method comprises applying pressure on the handling components, the pressure forcing deformation of the deformable mold such that the outer spines are moved towards the bed, and thereby at least partially releasing the manufactured corner stone from the mold.
(91) At step 356, the method comprises removing the at least partially released manufactured corner stone(s) from the mold.
(92) At step 358, the method comprises removing the deformable mold from the bed.
(93) At step 360, the method comprises cleaning up the deformable mold prepping it up for future use.
(94) It is worth noting that, according to embodiments, steps 356 to 360 may be performed manually or using an automated device without departing from the present method.
(95) While preferred embodiments have been described above and illustrated in the accompanying drawings, it will be evident to those skilled in the art that modifications may be made without departing from this disclosure. Such modifications are considered as possible variants comprised in the scope of the disclosure.