A sand mold forming mold for octagonal tube lattice brick

Abstract

The patent of the present invention belongs to the technical field of fused zirconium corundum brick production equipment, and specifically relates to an octagonal tube lattice brick sand mold forming mold, including an upper mold and a lower mold, the lower mold includes an inner core, an inner frame and an outer frame arranged from the inside to the outside, the outer frame includes a left outer frame and a right outer frame, the left outer frame and the right outer frame are detachably spliced ​​together by a clamping structure, and a pouring hole is provided on the side wall of the right outer frame. The present invention can improve the production efficiency of octagonal tube lattice bricks. It is an octagonal tube lattice brick sand mold forming mold that reduces the difficulty of sand mold preparation, improves preparation accuracy, has a simple structure and can be spliced.

Description

Technical Field

[0001] The invention belongs to the technical field of fused zirconium corundum brick production equipment, and in particular relates to a forming die for an octagonal tube lattice brick sand mold. Background Art

[0002] Fused zirconium corundum bricks are also called AZS fused zirconium corundum bricks, with the English abbreviation AZS. They are mainly fused zirconium corundum bricks for glass kilns. Fused zirconium corundum bricks are made of pure alumina powder and zircon sand containing about 65% zirconium oxide and 34% silicon dioxide. After being melted in an electric furnace, they are injected into the mold and cooled to form a white solid. In particular, fused AZS octagonal tube checker bricks are used in the heat storage chamber of glass kilns. Octagonal tube checker bricks are made through sand molds during production, and then cast through the product liquid melted in an electric arc furnace. The sand mold mold used in traditional octagonal tube checker bricks is a wooden mold, which is easy to deform when exposed to water, has a short recycling life, and has a relatively large dimensional error. The traditional sand mold mold has four parts: the outer frame and inner core of the sand mold, the upper cover and the bottom. The outer frame, inner core and bottom here are designed separately. The inner core, outer frame and bottom of the sand mold need to be bonded together to form a complete set of octagonal tube checker brick sand molds.

[0003] Since the outer frame and the inner core are split designs, they need to be bonded together later. However, there will inevitably be errors during manual bonding, and the existence of errors affects the overall quality and appearance of the lattice bricks. Moreover, since the inner core and the outer frame are not integrated, the octagonal tube lattice bricks produced thereby require secondary cutting and grinding, which is time-consuming and labor-intensive, and requires an extra step, which reduces production efficiency and has high production costs. In addition, the existing octagonal tube lattice brick sand mold forming mold is inconvenient to operate during mold turning, which affects production efficiency. Moreover, the pouring holes of the existing octagonal tube lattice brick sand mold forming mold are mostly located at the bottom of the mold. When manufacturing octagonal tube bricks, only one can be poured at a time, resulting in low production efficiency and corresponding high price costs.

[0004] The disadvantages of traditional wooden molds are even greater. The sand mold is composed of four parts. The shape of the brick after pouring has the following disadvantages: one riser for each brick, which wastes solution, is extremely inefficient, and has very high costs. The disadvantages of this mold are: the bottom, cover, outer frame, and inner core need to be molded separately and then glued together. The process is complicated, the dimensional error is large, the efficiency is extremely low, and the wooden mold is easy to deform and is difficult to use continuously. Summary of the invention

[0005] In view of the problems in the prior art, the purpose of the present invention is to provide an octagonal tube checker brick sand mold forming mold that improves the production efficiency of octagonal tube checker bricks, has a simple structure and can be spliced. The material used in the mold is a 1mm-2mm thick stainless steel plate or iron plate, or a plastic steel or plastic material, which can effectively solve the disadvantages of low production efficiency, waste of raw materials, high cost, short service life, poor precision, and the need for secondary processing of octagonal tube checker bricks in fused zirconium corundum bricks.

[0006] In order to achieve the above object, the technical solution of the present invention is:

[0007] An octagonal tube lattice brick sand mold forming mold comprises an upper mold and a lower mold, the lower mold comprises an inner core, an inner frame and an outer frame arranged in sequence from the inside to the outside, the outer frame comprises a left outer frame and a right outer frame, the left outer frame and the right outer frame are detachably spliced ​​together through a clamping structure, and a pouring hole is provided on the side wall of the left outer frame or the right outer frame.

[0008] Preferably, a protrusion matching the outer contour of the inner frame is provided on the lower end surface of the upper mold, and rectangular protrusions are provided around the protrusion.

[0009] Preferably, a support plate is provided at the upper end of the inner core.

[0010] Preferably, the inner frame includes an inner plate and an outer plate, the inner plate is arranged on the inner side of the outer plate, and an upper interlayer, a middle interlayer and a lower interlayer are arranged therebetween from top to bottom, and two upper cover plates are arranged on the upper end surface of the upper interlayer, the two upper cover plates are arranged at intervals, and the shape and spacing distance of the opposite surfaces are consistent with the shape and size of the inner core.

[0011] Preferably, the upper end surface of the outer frame is provided with a slot for positioning the support plate.

[0012] Preferably, the pouring hole is arranged on the non-connecting surface between the right outer frame and the left outer frame.

[0013] Preferably, the side walls of the left outer frame and the right outer frame are provided with handles.

[0014] Preferably, a positioning plate is provided on the outer side wall of the left outer frame at the connection with the right outer frame, and a connecting groove corresponding to the positioning plate is provided on the outer side wall of the right outer frame.

[0015] Compared with the prior art, the present invention forms the casting cavity of the lower mold of the octagonal tube checkered brick through the inner core, the inner frame and the outer frame, and the outer frame is composed of the left and right outer frames, which is more convenient than the wooden integrated mold when taking the sand mold of the octagonal tube checkered brick, and will not damage the appearance of the sand mold B, thereby improving the firing quality of the checkered brick. The upper end support plate of the inner core can facilitate the taking of the inner core, so that the inner core wall surface of the sand mold of the octagonal tube checkered brick is smoother, further improving the firing quality of the octagonal tube checkered brick, and a card slot is provided on the outer frame to facilitate the positioning of the inner core, thereby improving the firing quality of the octagonal tube checkered brick. High molding accuracy, the pouring holes are arranged on the side walls of the outer frame and on the non-connecting surfaces of the right outer frame and the left outer frame. Since an octagonal tube sand mold can be formed in an octagonal tube brick mold, multiple octagonal tube sand molds B are stacked into a pouring channel, and multiple octagonal tube bricks can be poured through one riser. Compared with the traditional pouring holes arranged at the bottom, the production efficiency is improved. A positioning plate is provided at the connection between the outer wall of the left outer frame and the right outer frame, and a connecting groove corresponding to the positioning plate is provided on the outer wall of the right outer frame, thereby ensuring the accuracy of the connection between the left and right outer frames. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Attached Figure 1 It is an exploded view of the lower mold structure of the present invention;

[0018] Attached Figure 2 For attachment Figure 1 Structural diagram of the middle and outer frames;

[0019] Attached Figure 3 It is a structural schematic diagram of the upper mold in the present invention;

[0020] Attached Figure 4 For attachment Figure 1 A schematic diagram of the structure of the middle inner core;

[0021] Attached Figure 5 For attachment Figure 1 A schematic diagram of the structure of the middle inner frame;

[0022] Attached Figure 6 It is a schematic diagram of the structure of the upper and lower interlayers of the inner frame;

[0023] Attached Figure 7 It is a schematic diagram of the structure of the upper cover plate in the inner frame;

[0024] Attached Figure 8 It is a schematic diagram of the structure of the outer plate in the inner frame;

[0025] Attached Fig. 9 For attachment Figure 8 A top view of the outer plate structure;

[0026] Attached Fig.10 It is a schematic diagram of the structure of the inner plate in the inner frame;

[0027] Attached Fig.11 For attachment Fig.10 A top view of

[0028] Attached Fig.12 It is a schematic diagram of the structure of the upper interlayer in the inner frame;

[0029] Attached Fig.13 For attachment Figure 1 Schematic diagram of the structure after the middle and lower mold structures are combined;

[0030] Attached Fig.14 For attachment Fig.13 Schematic diagram of the cross-sectional structure after flipping;

[0031] Attached Fig.15It is a structural schematic diagram of the octagonal tube checker brick in the present invention;

[0032] Attached Fig.16 It is a plan layout structure diagram of the sand mold prepared by the mold in the present invention during casting;

[0033] Attached Fig.17 This is a plan layout diagram for pouring another type of sand mold;

[0034] Attached Fig.18 It is a schematic diagram of the pouring layout structure of the octagonal tube checker brick in the present invention.

[0035] In the figure: 1. inner core; 2. inner frame; 21. upper cover plate; 22. outer plate; 23. inner plate; 24. lower interlayer; 25. upper interlayer; 26. middle interlayer; 3. outer frame; 31. left outer frame; 32. right outer frame; 33. slot; 34. pouring hole; 35. handle; 4. upper mold; 41. protrusion; 5. positioning plate; 6. connecting groove; 7. support plate. DETAILED DESCRIPTION

[0036] The technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments. Based on the embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0037] like Figure 1 and Figure 2As shown, a specific embodiment of the present invention is an octagonal tube lattice brick sand mold forming mold, including an upper mold 4 and a lower mold, the lower mold includes an inner core 1, an inner frame 2 and an outer frame 3 arranged from inside to outside, the outer frame 3 includes a left outer frame 31 and a right outer frame 32, the left outer frame 31 and the right outer frame 32 are detachably spliced ​​together by a clamping structure, a pouring hole 34 is provided on the side wall of the left outer frame 31 or the right outer frame 32, the upper mold 4 is arranged at the upper end of the lower mold, and the upper mold 4 and the cavity inside the lower mold together form a sand mold cavity, the shape of the cavity is the same as the shape of the octagonal tube brick sand mold, the left outer frame 31 and the right outer frame 32 are clamped by a clamping mechanism, and the clamping mechanism is an existing clamping mechanism, as long as it can be Any clamping mechanism that stably connects the left outer frame 31 and the right outer frame 32 can be used, such as the existing male-female clamping mechanism, in which a male head is set on the outer wall of the left outer frame 31, and a female head is set on the outer wall of the right outer frame 32. The positions of the male and female heads are corresponding. When the left outer frame 31 and the right outer frame 32 are connected, the male and female heads can be clamped together to connect the two. Existing buckle clamping mechanisms can also be used, such as stainless steel flat-mouth buckles, heavy-duty military buckles, long buckles, spring buckles, adjustable buckles and other existing buckles, that is, a locking nose is set on the outer wall of the left outer frame 31, and a locking head is set on the outer wall of the right outer frame 32. When in use, the locking head is overlapped on the locking nose to connect the left outer frame 31 and the right outer frame 32. The pouring hole 34 can be arranged on the side wall of the left outer frame 31 or the right outer frame 32, so that the octagonal tube sand mold B produced can be stacked together to form a pouring channel with a rectangular cross section. The pouring hole 34 is the same as the enclosed pouring channel. A plurality of octagonal tube bricks can be produced by one pouring and using one riser 8, so the production efficiency is high and the pouring times are reduced. Preferably, the pouring hole 34 is arranged on the non-connecting surface of the right outer frame 32 and the left outer frame 31 to ensure that the pouring hole 34 is an integrated hole, so that the sealing during pouring can be ensured. As shown in the attached figure Fig.18 As shown in the figure, multiple sand molds B are stacked in sequence in the horizontal and vertical directions, and the pouring stock solution flows from the riser 8 into the pouring channel 9 formed between the sand molds, and is diverted on both sides, and then flows into the sand cavity through the pouring hole 34 of the sand mold when passing through the diversion channel, and then cools to form octagonal tube checker bricks.

[0038] As attached Fig.16 , Attachment Fig.17 As shown in the figure, the local structure diagram of the prepared sand mold in the specific pouring process is shown in the figure. Regarding the plane layout of the sand mold, you can refer to the attached Fig.16 In the form of Fig.17 The shape of the outer frame 32 is slightly changed, and the position of the pouring hole 34 is changed to obtain the attached Fig.17 In the two layout forms, one hole or two holes can be used for pouring. For example, in this embodiment, if one hole is used for pouring, the diameter of the pouring hole is 30 mm. If two holes are used for pouring, the diameter of the two pouring holes is 25 mm, which optimizes the pouring effect.

[0039] like Figure 3 As shown, a specific embodiment of the present invention, the lower end surface of the upper mold 4 is provided with a protrusion 41 that is adapted to the outer contour of the inner frame 2, and a rectangular extension is provided around the protrusion 41. In order to adapt to the outer shape of the octagonal tube sand mold of the lower mold, the protrusion 41 and the rectangular extension are provided, and the height of the extension is lower than the height of the protrusion 41. The size of the protrusion 41 and the extension is consistent with the size of the outer contour of the lower mold inner frame 2. The space inside the upper mold 4 and the lower mold forms an octagonal tube sand mold B cavity. During casting, the sand mold produced by the upper mold 4 after drying is covered on the sand mold B produced by the dried lower mold to form a casting cavity, and the casting solution is poured into the casting channel through the riser, and the solution enters the casting cavity through the pouring hole 34 to form a final octagonal tube checkered brick.

[0040] like Figure 4 As shown, in order to improve the surface finish of the lower mold sand mold inner core 1 and the position accuracy of the inner core 1, a support plate 7 is provided at the upper end of the inner core 1, and the support plate 7 plays a role in positioning and supporting the inner core 1, and is convenient for taking out the inner core 1. The shape of the support plate 7 can be rectangular, cylindrical or any shape, as long as it can ensure the support and positioning of the inner core 1.

[0041] like Figures 5 to 12 As shown, in a specific embodiment of the present invention, the inner frame 2 includes an inner plate 23 and an outer plate 22, the inner plate 23 is arranged on the inner side of the outer plate 22, and an upper interlayer 25, a middle interlayer 26 and a lower interlayer 24 are arranged therebetween from top to bottom, the middle interlayer is consistent with the upper interlayer 25 in structure and shape, and a plurality of middle interlayers 26 are arranged from top to bottom, this is to provide stable support for the inner plate 23 and the outer plate 22, the reason why the interlayer is arranged instead of setting the inner frame 2 to be solid is to reduce the weight of the mold, and to reduce the labor intensity of the operator when turning the mold;

[0042] Two upper cover plates 21 are provided on the upper end surface of the upper interlayer 25, and the two upper cover plates 21 are arranged at intervals, and the shape and spacing distance of the opposite surfaces are consistent with the shape and size of the inner core 1, that is, the shape and spacing distance of the center of the upper cover plate 21 are consistent with the shape and size of the inner core 1, and the shape and spacing distance on both sides of the upper cover plate 21 are consistent with the shape and size of the support plate 7. This is done to ensure the sealing of the connection between the upper end surface of the inner core 1 and the upper end surface of the inner frame 2 when the inner core 1 is installed in the inner frame 2, and when the inner core 1 is installed in the inner frame 2, the upper end surface of the inner core 1 is flush with the upper end surface of the inner frame 2, the upper end surface of the upper interlayer 25 is flush with the upper end surfaces of the inner plate 23 and the outer plate 22, and the lower end surface of the lower interlayer 24 is flush with the lower end surfaces of the inner plate 23 and the outer plate 22.

[0043] like Figure 2As shown, in order to more stably support the inner core 1 and improve the accuracy of positioning the inner core 1, a slot 33 for positioning the support plate 7 is provided on the upper end surface of the outer frame 3. After the inner frame 2 and the inner core 1 are installed in the outer frame 3, the support plate 7 is inserted into the slot 33 to ensure that the inner core 1 will not move during the process of filling the mold with sand, thereby improving the quality of the sand mold B and ensuring the quality of the subsequent pouring. Of course, the size and shape of the slot 33 are compatible with the size and shape of the support plate 7.

[0044] In order to facilitate the assembly and disassembly of the left outer frame 31 and the right outer frame 32, as shown in FIG. Figure 3 As shown, handles 35 are provided on the side walls of the left outer frame 31 and the right outer frame 32. The shape and size of the handle 35 are adjusted according to actual needs and are not limited here. The handle 35 is fixedly connected to the left outer frame 31 and the right outer frame 32. The connection method can be welding or bolt connection, as long as the handle 35 can be stably installed on the outer walls of the left outer frame 31 and the right outer frame 32.

[0045] In order to ensure the accuracy of installation of the left outer frame 31 and the right outer frame 32, a positioning plate 5 is provided on the outer wall of the left outer frame 31 at the connection with the right outer frame 32, and a connecting groove 6 corresponding to the positioning plate 5 is provided on the outer wall of the right outer frame 32. When splicing, the positioning plate 5 is clamped in the connecting groove 6, and the clamping mechanism is clamped to complete the connection between the left outer frame 31 and the right outer frame 32.

[0046] When the present invention is used, after the left outer frame 31 is connected with the right outer frame 32, the inner frame 2 is placed in the outer frame 3, at which time the upper end surface of the inner frame 2 is flush with the upper end surface of the outer frame 3, and then the inner core 1 is placed in the inner frame 2 to complete the assembly of the lower mold, and then the lower mold is turned over. After that, the operator fills the lower mold with casting sand, and then vibrates it on a vibrator or compacts it manually. After the lower mold is filled with sand and formed, the lower mold is turned over, and the pouring hole 34 is opened at the pouring hole of the outer frame 3 with a stainless steel pipe, and the inner core 1 and the inner frame 2 are taken out, and finally The left outer frame 31 and the right outer frame 32 are disassembled to complete the molding of the sand mold of the lower mold brick body to obtain the lower sand mold B. The upper mold 4 is filled with casting sand and compacted on a vibrator or manually. After the upper mold 4 is filled, the upper mold 4 is turned over and taken out to obtain the upper sand mold. After the upper and lower sand molds are dried, the upper sand mold is covered on the lower sand mold. The internal spaces of the upper and lower sand molds form a casting cavity. The casting solution is poured into the casting channel through the riser. The solution enters the casting cavity through the pouring hole 34 and forms the final octagonal tube lattice brick.

[0047] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An octagonal tube lattice brick sand mold forming mold, characterized in that: The invention comprises an upper mold (4) and a lower mold, wherein the lower mold comprises an inner core (1), an inner frame (2) and an outer frame (3) arranged from the inside to the outside, wherein the outer frame (3) comprises a left outer frame (31) and a right outer frame (32), wherein the left outer frame (31) and the right outer frame (32) are detachably spliced ​​together via a snap-fit ​​structure, and a pouring hole (34) is provided on the side wall of the left outer frame (31) or the right outer frame (32); and the upper end surface of the inner frame (2) is provided with two upper cover plates (21) arranged at intervals.

2. The octagonal tube lattice brick sand mold according to claim 1, characterized in that: The lower end surface of the upper mold (4) is provided with a protrusion (41) adapted to the outer contour of the inner frame (2), and rectangular protrusions are provided around the protrusion (41).

3. The octagonal tube lattice brick sand mold according to claim 1, characterized in that: A support plate (7) is provided at the upper end of the inner core (1).

4. The octagonal tube lattice brick sand mold according to claim 1 or 2, characterized in that: The inner frame (2) comprises an inner plate (23) and an outer plate (22), wherein the inner plate (23) is arranged on the inner side of the outer plate (22), and an upper interlayer (25), a middle interlayer (26) and a lower interlayer (24) are arranged in sequence from top to bottom. Two upper cover plates (21) are arranged on the upper end surface of the upper interlayer (25), and the shapes and spacing distances of the opposite surfaces of the two upper cover plates (21) are consistent with the shapes and sizes of the inner core (1).

5. The octagonal tube lattice brick sand mold according to claim 1, characterized in that: The upper end surface of the outer frame (3) is provided with a slot (33) for positioning the support plate (7).

6. The octagonal tube lattice brick sand mold according to claim 1, characterized in that: The pouring hole (34) is arranged on the non-connecting surface between the right outer frame (32) and the left outer frame (31).

7. The octagonal tube lattice brick sand mold according to claim 1, characterized in that: The side walls of the left outer frame (31) and the right outer frame (32) are provided with handles (35).

8. The octagonal tube lattice brick sand mold according to claim 1, characterized in that: The outer wall of the left outer frame (31) is provided with a positioning plate (5) at the connection with the right outer frame (32), and the outer wall of the right outer frame (32) is provided with a connecting groove (6) corresponding to the positioning plate (5).

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