A type of silica brick mold for bidirectional cross-hole coke ovens

Abstract

This application belongs to the field of mold technology, specifically disclosing a bidirectional cross-hole coke oven silicon brick mold, comprising: a cavity for forming the outer contour of the silicon brick; a first core located inside the cavity; and a second core adapted to the irregular hole in the silicon brick, wherein the larger end of the first core is connected to the first core, and the other end is connected to a first vertical plate; both the second core and the first vertical plate are located inside the cavity. The bidirectional cross-hole coke oven silicon brick mold disclosed in this application, by connecting the irregular hole forming component, i.e., the second core, with the rectangular hole forming component, i.e., the first core, and fixing them with the first vertical plate, not only ensures the relative positional accuracy of the irregular hole and the rectangular hole, but also creates conditions for subsequent separate demolding, solving the problem that traditional one-piece cores cannot adapt to the demolding of irregular holes with a larger inner diameter and a smaller outer diameter.

Description

Technical Field

[0001] This application relates to the field of mold technology, and in particular to a mold for a bidirectional cross-hole coke oven silicon brick. Background Technology

[0002] Silica bricks are a type of refractory brick material, typically formed using molds.

[0003] like Figure 1 and Figure 2 As shown, a type of irregularly shaped perforated silica brick has a square overall outer contour with a rectangular hole running through its center. An irregularly shaped hole is provided on one side wall of the rectangular hole, connecting the rectangular hole to the outside of the entire irregularly shaped silica brick. The end of the irregularly shaped hole connected to the rectangular hole is larger, with a rectangular opening of 65mm in height and 90mm in width, while the end connected to the outside is smaller, with a rectangular opening of 17mm in height and 90mm in width. Due to the large internal opening and small external opening of the irregularly shaped hole, demolding is inconvenient, which brings certain difficulties to the production. Utility Model Content

[0004] The purpose of this application is to provide a bidirectional cross-hole coke oven silica brick mold to solve the above-mentioned problems.

[0005] To achieve the above objectives, the technical solution of this application is as follows: A mold for silica bricks used in a bidirectional cross-hole coke oven includes: Cavities are used to shape the outer contour of silica bricks; The first core is located inside the cavity; The second core is adapted to the irregular hole in the silicon brick. The larger end of the first core is connected to the first core, and the other end is connected to the first vertical plate. Both the second core and the first vertical plate are located inside the cavity.

[0006] Preferably, the first core includes a central core and a second vertical plate, wherein the central core and the second vertical plate are slidably disposed along the through-hole direction of the rectangular hole in the center of the silica brick.

[0007] Preferably, the central core is provided with a sliding groove, and the second vertical plate is provided with a sliding strip, and the sliding groove is slidably engaged with the sliding groove.

[0008] Preferably, the first vertical plate is provided with a first snap-fit ​​hole, the second vertical plate is provided with a second snap-fit ​​hole, and the two ends of the second core are respectively snapped into the first snap-fit ​​hole and the second snap-fit ​​hole.

[0009] Preferably, the second core includes a first wedge block and a second wedge block. The first wedge block has a first wedge surface on the side facing the second wedge block. The first wedge surface is inclined toward the second wedge block on the side facing the center of the cavity. The second wedge block has a second wedge surface on the side facing the first wedge block. The second wedge surface is inclined away from the first wedge block on the side facing the center of the cavity.

[0010] Preferably, it further includes a support plate for pushing upward into the cavity, the support plate being located below the formed silica brick, the first core, and the first vertical plate.

[0011] Preferably, the support plate includes a base plate and a pad plate, and the pad plate is provided with a through hole for ejecting the central core.

[0012] The bidirectional cross-hole coke oven silicon brick mold disclosed in this application has a structure that connects the forming component of the irregular hole (second core) with the forming component of the rectangular hole (first core) and fixes them with the help of the first vertical plate. This structure not only ensures the relative positional accuracy of the irregular hole and the rectangular hole, but also creates conditions for subsequent demolding. It solves the problem that the traditional one-piece core cannot adapt to the demolding of irregular holes with "large inside and small outside". Attached Figure Description

[0013] Figure 1 A schematic diagram of the overall structure of the silica brick described in the background art; Figure 2 A cross-sectional view of a silica brick as described in the background art; Figure 3 This is a schematic diagram of the overall structure of this application (the tray is not shown). Figure 4 This is a top view of the overall structure of this application; Figure 5 This is a schematic diagram of the internal structure of the cavity in this application; Figure 6 This is a cross-sectional view of the internal structure of the cavity in this application.

[0014] In the picture: 1. Silica brick; 2. Cavity; 3. First core; 30. Slide groove; 4. First vertical plate; 40. First snap-fit ​​hole; 5. Second vertical plate; 50. Slide bar; 51. Second snap-fit ​​hole; 6. First wedge block; 7. Second wedge block; 70. Second wedge surface. Detailed Implementation

[0015] The present application will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present application, and therefore only show the components relevant to the present application.

[0016] like Figure 3-6As shown, a bidirectional cross-hole coke oven silicon brick mold includes: a cavity 2 for forming the outer contour of silicon brick 1; a first core 3 located inside the cavity 2; and a second core adapted to the irregular hole in the silicon brick 1. The larger end of the first core 3 is connected to the first core 3, and the other end is connected to the first vertical plate 4. Both the second core and the first vertical plate 4 are located inside the cavity 2.

[0017] Cavity 2 serves as the molding space for the outer contour of silicon brick 1. Its inner wall shape is adapted to the square outer contour of silicon brick 1, providing a basic molding boundary for silicon brick 1.

[0018] The first core 3 is located inside the cavity 2 and is used to form the rectangular hole in the center of the silicon brick 1. Its shape matches the size of the rectangular hole.

[0019] The shape of the second core is perfectly matched with the irregular hole in the silicon brick 1. Its larger end is connected to the first core 3 to ensure that the connection between the irregular hole and the rectangular hole is accurately formed. The other end is connected to the first vertical plate 4, which supports and fixes the second core. Both are located inside the cavity 2 and cooperate with the inner wall of the cavity 2 to form a complete silicon brick 1 forming space.

[0020] This structure connects the forming component of the irregular hole (second core) with the forming component of the rectangular hole (first core 3) and fixes them with the first vertical plate 4. This not only ensures the relative positional accuracy of the irregular hole and the rectangular hole, but also creates conditions for subsequent demolding. It solves the problem that traditional one-piece cores cannot adapt to the demolding of irregular holes with "large inside and small outside".

[0021] In some further embodiments, the first core 3 includes a central core and a second vertical plate 5, which are slidably disposed along the direction of the rectangular hole in the center of the silicon brick 1.

[0022] The first core 3 consists of a central core and a second vertical plate 5, which are slidably arranged along the through-hole direction of the rectangular hole in the center of the silica brick 1. The central core mainly forms the main body of the rectangular hole, while the second vertical plate 5 assists in forming the side part where the rectangular hole connects with the irregular hole.

[0023] The sliding mechanism allows the central core and the second vertical plate 5 to move in stages along the length of the rectangular hole during demolding, avoiding the difficulty of separation due to the tight fit between the integral structure and the inner wall of the silica brick 1. This is especially suitable for cases where the rectangular hole is deep. By sliding in stages, the demolding resistance is reduced, further optimizing the ease of demolding.

[0024] In some further embodiments, a groove 30 is provided on the central core, and a slide bar 50 is provided on the second vertical plate 5, with the groove 30 slidingly engaged with the groove 30.

[0025] The groove 30 on the central core and the slide bar 50 on the second vertical plate 5 form a sliding fit, and the thickness of the slide bar 50 is adapted to the width of the groove 30. By setting the groove 30 and the slide bar 50, the guiding accuracy of the central core and the second vertical plate 5 during the sliding process is ensured, preventing relative misalignment from affecting the molding size. At the same time, the surface contact between the groove 30 and the slide bar 50 can disperse stress, avoid jamming or component wear during sliding, extend the service life of the mold, and simplify the processing technology of the sliding structure, reducing the production difficulty.

[0026] In some further embodiments, the first vertical plate 4 is provided with a first snap-fit ​​hole 40, and the second vertical plate 5 is provided with a second snap-fit ​​hole 51, and the two ends of the second core are respectively snapped into the first snap-fit ​​hole 40 and the second snap-fit ​​hole 51.

[0027] The first snap-fit ​​hole 40 on the first vertical plate 4 and the second snap-fit ​​hole 51 on the second vertical plate 5 correspond to the two ends of the second core, respectively. The shapes of the first snap-fit ​​hole 40 and the second snap-fit ​​hole 51 are consistent with the cross-sectional shapes of the two ends of the second core.

[0028] The snap-fit ​​mechanism ensures that the second core is firmly fixed during the molding process, guaranteeing the dimensional accuracy of the irregular hole and avoiding molding defects caused by the displacement of the second core. At the same time, the snap-fit ​​method facilitates the quick assembly and disassembly of the second core. During demolding, the snap-fit ​​relationship can be released first to separate the second core from the two vertical plates, which facilitates the subsequent demolding of the second core.

[0029] In some further embodiments, the second core includes a first wedge block 6 and a second wedge block 7. The first wedge block 6 has a first wedge surface on the side facing the second wedge block 7. The side of the first wedge surface facing the center of the cavity 2 is inclined toward the second wedge block 7. The second wedge block 7 has a second wedge surface 70 on the side facing the first wedge block 6. The side of the second wedge surface 70 facing the center of the cavity 2 is inclined away from the first wedge block 6.

[0030] During the demolding process, the first wedge block 6 is pulled out first, and then the second wedge block 7 is pulled out, thereby reducing the friction between the second core and the silicon brick 1 during the demolding process, thus facilitating demolding.

[0031] In some further embodiments, a support plate for pushing upward into the cavity 2 is also included, the support plate being located below the formed silica brick 1, the first core 3, and the first vertical plate 4.

[0032] The support plate is located below the molded silica brick 1, the first core 3, and the first vertical plate 4, and its dimensions are adapted to the cross-section of the cavity 2. During the demolding stage, the support plate can move vertically upwards, pushing the silica brick 1, the first core 3, and the first vertical plate 4 upwards to separate these components from the inner wall of the cavity 2. The upward pushing force of the support plate balances the friction between the silica brick 1 and the inner wall of the cavity 2, reducing the risk of damage to the silica brick 1 during demolding and improving demolding efficiency. In some further embodiments, the tray includes a base plate and a pad plate, the pad plate having a through hole for ejecting the central core.

[0033] The base plate of the pallet serves as the load-bearing foundation, and the pad is located above the base plate. The position of the through hole on the pad corresponds to the bottom of the central core, and the size of the through hole is slightly larger than the cross-sectional size of the central core.

[0034] The through hole is used to push out the first core 3. After the whole is separated from the cavity 2, the first core 3 is pushed out from the through hole. Then the second vertical plate 5, the two partitions and the first vertical plate 4 are removed to finally complete the demolding.

[0035] This structure makes the demolding process more orderly and avoids mutual interference caused by the synchronous movement of each component. It is especially suitable for situations where the silica brick 1 and the first core 3 are tightly bonded. The step-by-step ejection further protects the molding quality of the silica brick 1.

[0036] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this application.

Claims

1. A mold for silica bricks used in a bidirectional cross-hole coke oven, characterized in that, include: Cavity (2) is used to form the outer contour of silica brick (1); The first core (3) is located inside the cavity (2); The second core is adapted to the irregular hole in the silicon brick (1). The larger end of the first core (3) is connected to the first core (3), and the other end is connected to the first vertical plate (4). The second core and the first vertical plate (4) are both located inside the cavity (2).

2. The bidirectional cross-hole coke oven silica brick mold according to claim 1, characterized in that, The first core (3) includes a central core and a second vertical plate (5), and the central core and the second vertical plate (5) are slidably arranged along the through direction of the rectangular hole in the center of the silicon brick (1).

3. The bidirectional cross-hole coke oven silica brick mold according to claim 2, characterized in that, The central core is provided with a sliding groove (30), and the second vertical plate (5) is provided with a sliding strip (50). The sliding groove (30) and the sliding groove (30) are in sliding cooperation.

4. The bidirectional cross-hole coke oven silica brick mold according to claim 2, characterized in that, The first vertical plate (4) is provided with a first snap-fit ​​hole (40), and the second vertical plate (5) is provided with a second snap-fit ​​hole (51). The two ends of the second core are respectively snapped into the first snap-fit ​​hole (40) and the second snap-fit ​​hole (51).

5. The bidirectional cross-hole coke oven silica brick mold according to claim 1, characterized in that, The second core includes a first wedge block (6) and a second wedge block (7). The first wedge block (6) has a first wedge surface on the side facing the second wedge block (7). The first wedge surface is inclined towards the second wedge block (7) on the side facing the center of the cavity (2). The second wedge block (7) has a second wedge surface (70) on the side facing the first wedge block (6). The second wedge surface (70) is inclined away from the first wedge block (6) on the side facing the center of the cavity (2).

6. The bidirectional cross-hole coke oven silica brick mold according to claim 2, characterized in that, It also includes a support plate for pushing upward into the cavity (2), the support plate being located below the formed silica brick (1), the first core (3), and the first vertical plate (4).

7. The bidirectional cross-hole coke oven silica brick mold according to claim 6, characterized in that, The support plate includes a base plate and a pad plate, and the pad plate is provided with a through hole for pushing out the central core.

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