Casting mold set for making a decorative cast

Abstract

Casting mold set (100; 100') for making a decorative cast (200), comprising at least: - a rectangular decorative frame (10) with a rebate (11) on a frame front (13) surrounding an opening (14), wherein the decorative frame (10) has a rebate depth X F , a fold height Z F , a fold dimension X F , Y F and a light dimension X L , Y L exhibits; - a back panel (20) that can be detachably connected to the decorative frame (10) and that can be placed against the rebate (11); - an impression plate (30), whose image dimensions X B , Y B each by twice the gap width X S one column (16) smaller than the fold dimensions X F , Y F are; - a spacer frame (40) with one of the rabbet heights Z F corresponding height and a frame thickness X R , which is smaller than the gap width Xs; where the following is used for making the impression: - the back panel (20) can be attached to the fold (11) and the impression panel (30) to the side of the back panel (20) facing the rear of the frame, - the spacer frame (40) can be inserted into the gap (16) between the decorative frame (10) and the impression plate (30) and and wherein, after the creation of a casting (200) in the casting chamber (15): - the inverted, relief-cast (200) with an impression base area (201) can be applied to the fold (11), wherein raised relief areas (202) of the cast (200) are located in the opening (14) of the decorative frame (10); and - the back panel (20) can be placed against the cast (200) and attached to the decorative frame (10).

Description

[0001] The invention relates to a casting mold set for producing a decorative cast.

[0002] It is common practice in hobby circles to make decorative casts of children's hands or feet, or of animals' paws or hooves, or of objects, and to hang these in a frame as decorative items. To do this, the object to be cast is pressed onto a molding plate, which can be depressed with even slight pressure to create a negative mold. This negative mold is then filled with a casting compound, such as plaster.

[0003] To be suitable for a picture frame, the cast object must, in addition to the relief elevations representing the molded objects, also have a flat impression base of a minimum thickness. This base must extend beyond the edges of the molded objects to ensure a smooth fit against the rabbet of the decorative frame. Furthermore, the impression base must be stable enough to withstand the usual vibrations during processing, transport, and hanging in the decorative frame.

[0004] The difficulty lies in the fact that the dimensions of the mold, which holds the impression plate, and the decorative frame, which is designed to hold the finished cast, must be precisely matched. This applies not only to the length and width, so that the base of the cast rests flush against the rabbet of the decorative frame, but also to the height of the cast base, which must be matched to the distance between the backing plate and the rabbet.

[0005] The object of the invention is therefore to create an easy-to-use and cost-effective casting mold set for the production of decorative casts.

[0006] This task is solved by a casting mold set that includes at least: - a rectangular decorative frame with a rebate on one frame front, wherein the decorative frame has a rebate depth Z F , a fold height X F , a fold dimension X F , Y F and a light dimension XL , Y L exhibits; - a back panel that can be detachably connected to the decorative frame, which can be placed against the rebate or which can be supported by auxiliary strips that are inserted into a groove running around the inner circumference of the decorative frame; - an impression plate whose image size X B , Y B by a gap width Xs smaller than the fold dimension X F - a spacer frame, in particular one without a fold, with a fold height of Z F corresponding height and a frame thickness X R , which are smaller than the gap width X S is;

[0007] The advantage of the casting mold set according to the invention lies particularly in the fact that the decorative frame can serve simultaneously as an impression mold and as a casting mold for the subsequent presentation of the impression, with only a few simple additional parts being required for conversion. Since no separate casting mold is necessary, the manufacturing costs of the casting mold set are reduced, and its use is simplified for the user.

[0008] Furthermore, the decorative frame, which is primarily made of wooden strips, creates a mechanically stable mold for impressions and casting.

[0009] In order to make the multi-purpose use of the decorative frame from the casting mold set possible, the invention is essentially based on a special coordination of the dimensions in the frame plane, i.e. the dimensions in the X and Y directions as well as in the depth, i.e. in the Z coordinate.

[0010] In familiar decorative frames, such as those designed for mounting pictures on paper or canvas, the rebate serves two purposes: firstly, to conceal the edge of the picture, especially when no passe-partout is used; and secondly, its rear edge acts as a stop against which the glass, the artwork, and the backing board are supported.

[0011] The internal dimensions of such a decorative frame are called the rebate dimensions X. F , Y F designated; in the case of a square frame there is only one rebate dimension X F The rebate height is the projection of the rebate from the inner circumference of the decorative frame inwards. Within the rebate there is a so-called clear opening X. L , Y L , which is twice the fold depth X F is smaller than the corresponding fold dimension X F , Y L .

[0012] The dimensions of the object held in the frame are referred to as image dimensions X. B , Y BThey are called [missing information]. They are larger than the light dimensions X. L , Y L , so that the object can at all be supported by the fold, but are at the same time smaller than the fold dimensions X F , Y F , so that the object does not get stuck in the frame.

[0013] As already explained, the casting mold set of the invention is intended for the formation of at least three uses and configurations of the decorative frame.

[0014] The first configuration is required for impression production. The casting mold set is preferably delivered in this configuration so that the user can create the impression directly.

[0015] To produce an impression, the decorative frame of the casting mold set according to the invention is placed on a base with its front, where the fold is formed, facing downwards. The back panel is placed onto the fold of the decorative frame from behind. The impression plate, whose image dimensions X are determined by the design, is then placed on the back panel. B , Y B smaller than the fold dimensions X F , Y Rof the frame. The gap between the frame and the image, resulting from the difference in dimensions between the rebate and the image, is filled by the spacer frame. The height of the spacer frame preferably corresponds to the depth of the interior space within the decorative frame between the contact surface at the rebate and the back. The impression plate, on the other hand, has a lower height. This height difference results in the formation of a plate-shaped casting base area during the subsequent casting process. The positive molds, created from the negative molds previously pressed into the impression plate, are attached to this base.

[0016] The impression plate preferably consists of a molded foam that can be plastically deformed with light pressure against the object, without mechanical aids.

[0017] The object to be cast is pressed onto the exposed side of the impression plate. If possible, the prepared casting set is placed on a firm surface, and the object is lowered onto it from above.

[0018] However, if, for example, a hoof print of a horse is to be made, then it is advantageous to have a handle firmly attached to the back panel. Then the entire casting mold set can be held like a stamp and pressed against the horse's hoof or other object to be imprinted.

[0019] The second configuration is used to create the cast on the previously embossed impression plate, which remains in the decorative frame. The spacer frame also remains in place.

[0020] Within the spacer frame, a mold is created on the back of the decorative frame, into which the casting compound, such as plaster, can be poured and distributed.

[0021] After the casting compound has hardened, the package consisting of the impression plate and the cast is removed. If the spacer frame is not also removed at the same time, it is then removed separately. The cast is then taken off the impression plate. If the backing plate is attached to the decorative frame with locking clips, these clips are released and the backing plate is removed. The backing plate will later be needed to hold the cast in the frame. Any handle that was previously attached for taking the cast is then removed.

[0022] A further advantage of the invention lies in the fact that the spacer frame is loosely inserted into the gap between the impression plate and the decorative frame. Should the impression exceptionally fail to demold, demolding can also be achieved by pulling out the strips of the spacer frame.

[0023] The third configuration of the casting mold set is used to present the finished casting; that is, the decorative frame now serves only for presentation. For this purpose, the impression is turned over and placed in the decorative frame so that it rests against the rabbet and its raised areas protrude through the clear rabbet opening on the front of the decorative frame. The backing plate is placed on the impression from behind and secured to the decorative frame by support strips, in particular spring strips made of sheet steel, which engage in the groove on the inner circumference of the decorative frame.

[0024] The transition from one configuration to the other can be achieved solely by adding or removing the spacer frame and by attaching the back panel to a different location in the decorative frame than before.

[0025] To prevent soiling of the decorative frame during the casting process, another embodiment of a casting mold set includes an additional casting support frame that can be inserted between the spacer frame and the mold foam plate. This support frame is made of a thin material, such as a piece of cardboard, and is designed to extend higher above the back surface of the impression plate than the spacer frame. This creates a deeper mold, allowing the casting material, especially plaster, to be poured and distributed particularly well without soiling the edges of the decorative frame. Furthermore, the support frame provides additional sealing, preventing casting material from running down the edges of the impression plate. After pouring and leveling the casting material, the support frame can be pressed down further until it is almost flush with the spacer frame surrounding it.The casting compound can then be carefully scraped over the top edge of the lowered casting support frame.

[0026] After the casting compound has hardened, the assembly consisting of the impression plate, the cast, and the casting support frame is removed from the decorative frame. If the spacer frame is not also removed at the same time, it is then removed separately. The impression is removed from the impression plate, and the casting support frame is removed from the impression. If the backing plate is attached to the decorative frame with retaining clips, these clips are released, and the backing plate is removed.

[0027] The advantage of using a casting support frame is that it adheres only to the side edges of the mold, unlike the spacer frame. This allows for easy demolding of the casting.

[0028] Particularly advantageous embodiments of the casting mold set according to the invention provide that the back panel, in its delivered state, is secured to the decorative frame by means of locking elements resting on the fold, thus forming a solid unit with which the impression plate can be pressed against an object to create an impression. This eliminates the need to press the object onto the lying impression plate from above. Preferably, this embodiment also provides for the attachment of a handle, e.g., a grip handle, to the back panel, for which, for example, two threaded holes can be provided in the back panel. In such a configuration, the casting mold set can be optimally held for freehand impression creation.

[0029] The casting mold set has a rectangular configuration, meaning that not only the decorative frame, but also the back panel, the impression plate, the spacer frame and, if applicable, the casting support frame are rectangular and their dimensions are coordinated with each other in the manner described, whereby the X and Y coordinates must be considered separately.

[0030] A square configuration is particularly advantageous. This allows the casting mold set to be held in the most comfortable orientation for the user, for example, when approaching an object for impression making. Furthermore, instead of requiring two pairs of strips for the spacer frames, four identical strips can be used.

[0031] The invention is explained in more detail below with reference to the embodiments of the invention shown in the drawings. The figures show in detail: Fig. Figure 1 shows a decorative frame with a cast inserted in it, in a perspective view from the front; Fig. 2. Remove the decorative frame individually from the back; Fig. 3 parts of the assembled casting mold set from the rear; Fig. 4 the casting mold set with inserted impression plate from the rear; Fig. 5 a casting mold set with impression plate according to a first embodiment from the rear, after the impression has been made; Fig. 6. The casting mold set with the casting compound filled, viewed from the back; Fig. 7 the decorative frame with inserted cast from the back; Fig. 8 the decorative frame closed with a back panel from the rear; Fig. 9A, Fig. 9B the edge area of ​​the casting mold set according to the first embodiment, in section before the casting is made; Fig. 10 the edge area of ​​the casting mold set according to the first embodiment, in section after the casting has been made; Fig. 11 the edge area of ​​the decorative frame with a cast inserted therein in section; Fig. 12 a casting mold set with impression plate according to a second embodiment from the rear, after the impression has been made; Fig. 13A, Fig. 13B a ​​border area of ​​the casting mold set according to the second embodiment, in section before the casting is made; and Fig. 14 the edge area of ​​the casting mold set according to the second embodiment, in section after the casting has been made.

[0032] Fig. Figure 1 shows a perspective view from the front of a plate-shaped cast 200 produced with the casting mold set of the invention, which is inserted into a square decorative frame 10 and has raised relief areas 202. A rebate 11 projects inwards beyond the other parts of the decorative frame 10 and supports the cast 200. The cast 200 is supported at the rear by a back panel.

[0033] The following Fig. Figures 2 to 10 show the individual steps in the preparation for creating the casting with the casting mold set of the invention and the subsequent removal of individual parts, so that in the end a decorative casting is obtained which is inserted into a decorative frame.

[0034] Fig. Figure 2 shows the decorative frame 10 from the rear. Within the rebate 11 there is an opening 14, the extent of which in the frame plane is defined as the clear dimension X. L is referred to as an external dimension X AThe dimension 10 indicates the greatest width or length of the decorative frame, but has no functional significance. The rebate dimension X is among the important dimensions. F ; it indicates the clear width in the decorative frame 10 outside the rebate 11,

[0035] In Fig. The first parts of the casting mold set 100 are assembled. Compared to the illustration in Fig. 2. A square back panel 20 was inserted from behind into the decorative frame 10 so that it rests on the concealed rebate. A handle 22 is attached to the frame via threaded holes 21. Fig. 3 screwed to the rear side of the back panel 20.

[0036] The lateral extent of the back panel 20 is referred to as image dimension X. B It is denoted by a double gap width X. S a gap 16 smaller than the rebate dimension X F .

[0037] The back panel 20 is secured by locking plates 24 that engage with the decorative frame 10 from the inside. Thus, the decorative frame 10 and the back panel 20 form a unit that makes it possible to create impressions by holding the entire unit, including the impression plate (not shown here), by the handle 22 and pressing it against an object. For example, it is possible to create a hoof print of a horse by lifting the hoof and pressing the casting mold set 100 against it.

[0038] In Fig. The casting mold set 100 is further expanded in 4 by adding, compared to Fig. 3. An impression plate 30 made of molded foam has been placed on the back panel 20. The impression plate 30 has the same image dimensions X. Blike the back panel 20. The gap between the outer circumference of the back panel 20 or the impression plate 30 and the inner circumference of the decorative frame 10 is filled by a square spacer frame 40, which is formed by four strips 41 of equal length. By filling the gap with the strips 41, the impression plate 30 is secured in the decorative frame 10 to such an extent that the entire casting mold set 100 can be lifted as described and, for example, pressed against a horse's hoof.

[0039] By pressing an object onto the plastically deformable impression plate 30 or by pressing the casting mold set 100 with the impression plate 30 leading against the object, at least one recessed impression 31 is produced in the impression plate 30, see Fig. 5.

[0040] Fig. 9A shows the configuration according to Fig. Figure 5 shows a sectional view of the edge region of the casting mold set 100. Above the top surface of the impression plate 30, a casting chamber 15 is created by the spacer frame 40, the height of which extends up to the rear surface 17 of the decorative frame 10. A groove 12 is provided on the inner circumference of the decorative frame 10, approximately halfway up the rabbet 11.

[0041] The elevation conditions are otherwise too Fig. 9A identical representation in Fig. 9B illustrates this. The rebate dimension Z available in the decorative frame 10 F extends between the back of the fold 11, which is in Fig. 9B lies at the top and the rear level 17 of the decorative frame 10. It is largely filled by the back panel 20 and the impression plate 30. A free height remains, which is designated as the impression base height Z. AThis dimension should be approximately achieved when creating the cast so that the cast can later be placed in the same decorative frame 10 for decorative display. Within the spacer frame 40, there is therefore a casting chamber 15 with a maximum height Z. A educated.

[0042] Fig. Figure 6 shows the casting mold set 100 again from the rear. Opposite Fig. In this illustration, a casting compound 33 has been poured into the casting chamber enclosed by the spacer frame 40. The casting compound 33 hardens in this position and forms a hard body, the casting 200.

[0043] Fig. Figure 10 shows a cross-sectional view of the one in Fig. 6. Rear view of the configuration of the casting mold set 100: enough casting compound 33 was poured into the casting chamber 15 to fill the recessed impressions 31 in the impression plate 30, and the upper level of the casting compound 33 was approximately at the level of the rear surface 17. This ensures that a continuous, plate-shaped impression base area is produced outside the molded impressions, defining the impression base height Z. A owns.

[0044] To from Fig. 6 to the configuration according to Fig. To reach position 7, the spacer frame 40, the cast 200, and the impression plate 30 underneath it were first removed from the decorative frame 10. The back panel was also detached from the decorative frame 10 and removed. The cast 200 was turned over and placed on the rebate 11.

[0045] Fig. Figure 7 shows the decorative frame 10 again from the rear, with a cast 200 inserted therein, resting on the fold 11. The raised reliefs 202 are located on the underside of the cast 200, within the opening of the decorative frame 10. In addition to the raised reliefs 202, the cast 200 has the plate-shaped, square impression base area 201, which is sufficiently rigid to allow the cast 200 to be inserted into the decorative frame 10 as a whole and without any other aids.

[0046] At the transition from Fig. 7 to Fig. 8. The back panel 20 was placed on the casting 200 from behind and supported by support strips 23, which fit into the grooves 12 (see Fig. 9A, Fig. 9B, Fig. 10) intervene, secured. The view from behind in Fig. 8 refers to the configuration that is in Fig. 1 in perspective view from the front and in Fig. 11 is shown on average.

[0047] In the corresponding sectional view in Fig. Figure 11 shows that the support strips 23 engage in the groove 12 on the inner circumference. The groove 12 is located so far above the bearing surface on the rebate 11 that the impression base surface 201, together with the back panel 20, can be accommodated between the rebate 11 and the groove 12. Since the height of the impression base surface 201 does not always result in a perfectly flat back panel at the height of the spacer frame during the production of the cast (see Figure 11), the support strips 23 engage in the groove 12. Fig. 10) leads to, i.e., is subject to tolerances, the groove 12 has a groove width of approximately 5 mm. By using thin support strips 23 made of sheet steel, which have a thickness of only about 1 mm, deviations of approximately 4 mm in the thickness of the casting 200 in the casting base area 201 can be compensated for.

[0048] In Fig. Figure 12 shows a casting mold set 100' according to a second embodiment, shown from the rear. An impression plate 30 made of molding foam has already been placed on the back panel 20. The impression plate 30 has the same image dimension X. Blike the back panel 20. The gap between the outer circumference of the back panel 20 and the impression plate 30 and the inner circumference of the decorative frame 10 is filled by a square spacer frame 40, which is formed by four strips 41 of equal length. By filling the gap with the strips 41, the impression plate 30 is secured in the decorative frame 10 to such an extent that the entire casting mold set 100 can be grasped by the handle and lifted, for example, to press it against a horse's hoof. By pressing an object onto the plastically deformable impression plate 30, or by pressing the casting mold set 100' with the impression plate 30 against the object, at least one recessed impression 31 is produced in the impression plate 30. In this respect, the casting mold set corresponds to the one described in Fig. 5 shown configurations match.

[0049] To simplify the subsequent production of an impression by filling with a casting compound, an additional casting aid frame 50 made of a very thin blank such as cardboard is used in this embodiment, and this is inserted between the inner circumference of the spacer frame 40 and the outer circumference of the impression plate 30.

[0050] Fig. Figure 13A shows this configuration in a sectional view of the edge region of the casting mold set 100. Above the top surface of the impression plate 30, an enlarged casting chamber 15 is created by the casting auxiliary frame 50, the height of which extends beyond the rear surface 17 of the decorative frame 10 and the upper edge of the spacer frame 40. A groove 12 is provided on the inner circumference of the decorative frame 10, approximately halfway up the rebate 11.

[0051] The elevation conditions are otherwise too Fig. 13A identical representation in Fig. 13B illustrates this. The rebate dimension Z available in the decorative frame 10 F extends between the back of the fold 11, which is in Fig. 13B lies at the top and the rear plane of the decorative frame 10. It is largely covered by the back panel 20 and the impression plate 30. A free height remains, which is designated as the impression base height Z. A This dimension should be approximately achieved when creating the cast so that the cast can later be included in the same decorative frame 10 for decorative display.

[0052] To facilitate the pouring of the casting compound and to prevent soiling of the back of the decorative frame 10, the pouring chamber 15' is higher than the rear surface 17 in this embodiment due to the pouring support frame 50. A pouring chamber 15' with a maximum height Z is formed within the pouring support frame 50. G , which is greater than the impression base height Z A .

[0053] Fig. Figure 14 shows the sectional view after casting: enough casting compound 33 was poured into the casting chamber 15' to fill the recessed impressions 31 in the impression plate 30 and to bring the upper level of the casting compound 33 approximately to the level of the rear surface 17 of the decorative frame 10. This creates a continuous, plate-shaped impression base area that is at least the impression base height Z. A owns. Reference symbol: 100, 100' casting mold set 10 decorative frames 11 fold 12 Nut 14 Opening 15 Casting room 15' enlarged casting chamber 16 gaps 17 rear level 20 Back panel 22 Handle 23 support strips 30 impression plates 31 indentation 33 Casting compound 40 spacer frames 41 strips 50 casting aid frames 200 casts 201 Imprint base area 202 Relief elevation

Claims

[1] Casting mold set (100; 100') for making a decorative cast (200), comprising at least: - a rectangular decorative frame (10) with a rebate (11) on a frame front (13) surrounding an opening (14), wherein the decorative frame (10) has a rebate depth X F , a fold height Z F , a fold dimension X F , Y F and a light dimension X L , Y L exhibits; - a back panel (20) that can be detachably connected to the decorative frame (10) and that can be placed against the rebate (11); - an impression plate (30), whose image dimensions X B , Y B each by twice the gap width X S one column (16) smaller than the fold dimensions X F , Y F are; - a spacer frame (40) with one of the rabbet heights Z F corresponding height and a frame thickness X R , which is smaller than the gap width Xs; where the following is used for making the impression: - the back panel (20) can be attached to the fold (11) and the impression panel (30) to the side of the back panel (20) facing the rear of the frame, - the spacer frame (40) can be inserted into the gap (16) between the decorative frame (10) and the impression plate (30) and and wherein, after the creation of a casting (200) in the casting chamber (15): - the inverted, relief-cast (200) with an impression base area (201) can be applied to the fold (11), wherein raised relief areas (202) of the cast (200) are located in the opening (14) of the decorative frame (10); and - the back panel (20) can be placed against the cast (200) and attached to the decorative frame (10). [2] Casting mold set (100; 100') according to claim 1, characterized by a casting support frame (50) which can be inserted between the spacer frame (40) and the impression plate (30) in such a way that it is extended by one impression base height Z Aprotrudes beyond the surface of the impression plate (30) and forms an elevated casting chamber (15); [3] Casting mold set (100; 100') according to claim 2, characterized by , that the casting support frame (50) is formed from a cardboard blank. [4] Casting mold set (100; 100') according to claim 3, characterized by , that the casting aid frame (50) is formed from a strip-shaped cardboard blank, the ends of which can be interlocked to form an endless casting aid frame (50). [5] Casting mold set (100; 100') according to any one of claims 1 to 4, characterized by , that the back panel (20) is detachably connected to the decorative frame (10). [6] Casting mold set (100; 100') according to one of claims 1 to 4, characterized by , that a handle (21) can be detachably connected to the back panel (20). [7] Casting mold set (100; 100') according to claims 5 and 6, characterized by , that the handle (21) connected to the back panel (20) protrudes towards the front of the frame (13). [8] Casting mold set (100; 100') according to claim 6 or 7, characterized by that the back panel (20) has at least two holes, threaded holes and / or threaded inserts to which the end of the handle (21) can be attached. [9] Casting mold set (100; 100') according to any one of the preceding claims, characterized by , that after the completed casting (200) has been placed in the decorative frame (10) the back panel (20) can be attached to the decorative frame (10) with support strips (23) that can be inserted into the groove (12), the groove (12) being provided in the inner circumference of the decorative frame (10). [10] Casting mold set (100; 100') according to any one of the preceding claims, characterized by , that the decorative frame (10) is made of wood and has a wall thickness of 14 mm and a rebate depth of 6 mm. [11] Casting mold set (100; 100') according to one of the preceding claims, characterized by , that the spacer frame (40) is formed from four wooden strips (41) of equal length.

Images