Pouring mold for slit refractory bricks

Abstract

A pouring mold for slit refractory bricks relates to the technical field of slit refractory brick production and comprises a conical barrel, a large end plate and a small end plate, the large end plate and the small end plate are connected with two ends of the conical barrel and distributed at two ends of a center rod, and a positioning mechanism is arranged at the position, corresponding to the small end plate, of the center rod. The positioning mechanism comprises a limiting shaft and a placement column, the limiting shaft is slidably connected into the storage hole, the storage hole is formed in the axial direction of the center rod, a balancing weight and a connecting disc are arranged at the two ends of the limiting shaft respectively, and the balancing weight and the connecting disc are sequentially arranged in the direction from the large end plate to the small end plate; one end of the placing column is hinged to the connecting disc, the other end of the placing column is in sliding fit with three or more inclined guide holes allowing the placing column to penetrate through, and the inclined guide holes are circumferentially distributed around the center of the storage hole. Therefore, the mold can be stably and quickly positioned on the ground in an auxiliary manner, and the purpose of efficiently processing the slit refractory bricks is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of the production of slit refractory bricks, in particular to a casting mold for slit refractory bricks. Background Art

[0002] A Chinese utility model patent with the patent application number 202121688788.1 and the name of a casting mold for a slit refractory brick. It uses a small end plate and a large end plate connected to a central rod, thereby facilitating the manual or automated threading of a PE tape between the small end plate and the large end plate, improving the tape threading efficiency of the casting mold. After the tape threading is completed, the conical cylinder can be connected and installed between the small end plate and the large end plate with the small end plate as a reference. After positioning and installation, a casting channel will be formed at the large port of the large end plate and the conical cylinder for the casting material to enter and complete the casting. Then, the casting is completed with the PE tape contained in the mold, and after the casting is completed, it can be fired at high temperature. After the firing is completed, the PE tape will burn out to form a slit, thus completing the preparation of the slit refractory brick.

[0003] The outer diameter of the central rod is set not too large in order to meet the dimensional requirements of the central hole of the slit refractory brick and also to facilitate the positioning of the small end plate or the large end plate at the end of the central rod using a nut and the thread on the outer wall of the central rod. The end face of the central rod is determined by the relatively small outer diameter of the central rod, that is, the end face area of the central rod is small. Therefore, when there is a certain distance between the small end plate and the end face of the central rod, it cannot have sufficient contact with the ground. Thus, the central rod cannot support the casting mold to be stably placed vertically, that is, it is not convenient for the staff to directly place it for the casting process after reversing the central rod. Therefore, after reversing the casting mold for the slit refractory brick, an external device needs to be found to position the mold. When using the external device, not only does the staff need to carry the casting mold to the external device, but also the staff needs to operate the external device. The process of moving the casting mold to the external device and operating the external device will undoubtedly increase the pre-casting process of the staff using the casting mold, thereby reducing the working efficiency of the staff in casting and preparing the slit refractory brick. Summary of the Utility Model

[0004] The utility model aims to provide a casting mold for slit refractory bricks to assist in stably and quickly positioning the mold on the ground, thereby achieving the purpose of efficiently processing slit refractory bricks.

[0005] To solve the above technical problems, the specific solution adopted by the utility model is as follows:

[0006] A casting mold for slit refractory bricks, including a conical cylinder and a large end plate and a small end plate connected to both ends of the conical cylinder. The large end plate and the small end plate are distributed at both ends of a central rod, and a positioning mechanism is provided at the position of the central rod corresponding to the small end plate;

[0007] The positioning mechanism includes a limiting shaft and a placing column. The limiting shaft is slidably connected in the storage hole, which is opened in the axial direction of the central rod. Counterweight blocks and connecting disks are respectively provided at both ends of the limiting shaft, and the counterweight blocks and the connecting disks are arranged in sequence along the direction from the large end plate to the small end plate.

[0008] One end of the placing column is hinged to the connecting disk, and the other end of the placing column is slidably matched with an inclined guide hole through which it passes. There are more than three inclined guide holes, which are distributed circumferentially around the center of the storage hole.

[0009] As a further optimization of the casting mold for the slit refractory brick of the present utility model, both the inclined guide holes and the placing columns are provided with three, and the three inclined guide holes and the three placing columns are evenly distributed circumferentially.

[0010] As a further optimization of the casting mold for the slit refractory brick of the present utility model, a limiting ring slidably matched with the limiting shaft is provided in the storage hole, and the inner diameter of the limiting ring is smaller than the outer diameter of the counterweight block.

[0011] As a further optimization of the casting mold for the slit refractory brick of the present utility model, the counterweight block is made of solid iron.

[0012] As a further optimization of the casting mold for the slit refractory brick of the present utility model, the placing column is made of elastic metal material.

[0013] As a further optimization of the casting mold for the slit refractory brick of the present utility model, a wear-resistant coating is provided on the outer peripheral surface of the placing column.

[0014] As a further optimization of the casting mold for the slit refractory brick of the present utility model, corresponding belt-passing grooves are provided on the large end plate and the small end plate.

[0015] As a further optimization of the casting mold for the slit refractory brick of the present utility model, the storage hole penetrates through the two end walls of the central rod. The limiting shaft is threadedly connected to a threaded hole opened in the center of the connecting disk, and an inner hexagonal groove is opened on the upper end surface of the limiting shaft.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] In the present utility model, by arranging a counterweight, when the large end plate is below the small end plate, the direction of the gravity traction on the counterweight is towards the large end plate. At this time, the counterweight will pull the limiting shaft and the connecting plate, causing the placing column to slide and be received in the storage hole, thereby preventing the placing column from extending to the side of the small end plate away from the large end plate and hindering the process of threading the PE tape through the small end plate from the side away from the large end plate, thus avoiding affecting the tape threading process of the mold. After the mold is flipped 180 degrees, the direction of the gravity traction on the counterweight will be towards the small end plate. At this time, the counterweight will push the limiting shaft and the connecting plate, causing the placing column to automatically expand through the inclined guide hole. After the placing column is placed on the ground, the placing column will be under the heavy pressure of the mold, so that the surface of the placing column will be friction-locked with the inner wall of the inclined guide hole, thereby supporting the mold to be stably placed on the ground. This avoids the process of moving the mold to an external device and operating the external device, enabling the staff to stably and quickly position the mold on the ground, thereby improving the efficiency of processing slit refractory bricks to a certain extent.

[0018] In addition, on the basis of the above technical effects, after the placing column is friction-locked with the inclined guide hole, the mold will be stably placed on the ground. While the mold is stably placed on the ground, the placing column will keep a certain distance between the small end plate and the ground, thereby enabling the inside of the mold to be fully communicated with the external environment through the tape threading groove. During the pouring process, the full communication between the inside of the mold and the external environment will cause the residual air in the mold to be squeezed out from the tape threading groove opened on the small end plate, thereby reducing the probability of a large number of air holes appearing in the formed refractory brick, that is, maintaining the preparation quality of the refractory brick. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the tape threading state of the mold of the present utility model;

[0020] Figure 2 is a sectional structural schematic diagram of the tape threading state of the mold of the present utility model;

[0021] Figure 3 is a three-dimensional structural schematic diagram of the inverted pouring state of the mold of the present utility model;

[0022] Figure 4 is a sectional structural schematic diagram of the inverted pouring state of the mold of the present utility model;

[0023] Figure 5 is an enlarged structural schematic diagram of part A of the present utility model.

[0024] Reference numerals: 1, central rod; 2, large end plate; 3, conical cylinder; 4, small end plate; 5, inclined guide hole; 6, positioning mechanism, 601, placing column, 602, connecting plate, 603, limiting ring, 604, storage hole, 605, limiting shaft, 606, counterweight; 7, tape threading groove. Detailed implementation mode

[0025] As Figure 1 and Figure 2 shown, the utility model includes a central rod 1, a large end plate 2 and a small end plate 4 fixedly connected to both ends of the central rod 1, and a conical cylinder 3 is arranged between the small end plate 4 and the large end plate 2, thereby forming a casting mold to prepare for the subsequent casting process of refractory bricks. Corresponding tape-passing grooves 7 are provided on the large end plate 2 and the small end plate 4, and the tape-passing grooves 7 can be used to cooperate with a tape-passing machine to pass a PE tape through the small end plate 4 and the large end plate 2 to complete the tape-passing process. As Figure 3 and Figure 4 shown, a positioning mechanism 6 is provided at the position of the central rod 1 corresponding to the small end plate 4. The positioning mechanism 6 can make the mold be placed vertically and stably when the mold rotates 180 degrees and is inverted, thereby assisting the staff in the casting process of refractory bricks.

[0026] The positioning mechanism 6 includes a limiting shaft 605 and a placing column 601. The limiting shaft 605 is slidably connected in a storage hole 604, and the storage hole 604 is opened in the axial direction of the central rod 1. The setting of the storage hole 604 can store the placing column 601, thereby avoiding the influence of the placing column 601 on the process when the tape-passing groove 7 is passed through by the tape, that is, avoiding the influence on the PE tape-passing process carried out by the tape-passing machine.

[0027] Both ends of the limiting shaft 605 are respectively fixedly connected with a connecting disk 602 and a counterweight 606. A limiting ring 603 slidably matched with the limiting shaft 605 is arranged in the storage hole 604, and the inner diameter of the limiting ring 603 is smaller than the outer diameter of the counterweight 606. The setting of the limiting ring 603 can limit the sliding amount of the counterweight 606 in the storage hole 604, thereby reducing the probability of the counterweight 606 separating from the storage hole 604 and causing the structural failure.

[0028] The limiting shaft 605 is threadedly connected with a threaded hole opened in the center of the connecting disk 602, and an inner hexagonal groove is opened on the upper end surface of the limiting shaft 605. When the storage hole 604 passes through the two end walls of the central rod 1, the counterweight 606 and the limiting shaft 605 can pass through one end of the storage hole 604 facing the large end plate 2, and the connecting disk 602 can be placed from one end of the storage hole 604 facing the small end plate 4. Then, the inner hexagonal groove opened on the limiting shaft 605 can be used to cooperate with a corresponding tool to complete the threaded connection between the limiting shaft 605 and the connecting disk 602, thereby completing the assembly of the limiting shaft 605 and the connecting disk 602.

[0029] The counterweight 606 is made of a solid iron block with a stable center of gravity. Thus, when the counterweight 606 slides, the center of gravity of the counterweight 606 and the central rod 1 is kept relatively coincident, thereby reducing the influence of the counterweight 606 on the staff when turning the central rod 1. That is, it avoids the situation that the mold slips due to the unstable center of gravity of the counterweight 606 when the staff turns the central rod 1, and thereby reduces the probability of the mold falling and being damaged to a certain extent.

[0030] One end of the placement column 601 is hinged to the connecting plate 602. When the large end plate 2 is below the small end plate 4, Figure 1 and Figure 2 As shown, the counterweight block 606 will be affected by gravity to pull the limiting shaft 605 to make the connecting plate 602 slide in the storage hole 604, so that the placement column 601 is stored in the storage hole 604. Figure 3 and Figure 4 As shown, when the large end plate 2 is above the small end plate 4, the counterweight block 606 will be affected by gravity to push the limiting shaft 605 and the connecting plate 602 to slide in the storage hole 604, so that the placement column 601 passes through the storage hole 604 to support the placement of the center rod 1.

[0031] like Figure 5 As shown, the other end of the placement column 601 is slidably matched with the inclined guide hole 5 for it to pass through, and the inclined guide holes 5 are provided with more than three and are distributed around the central circumference of the storage hole 604. The placement column 601 is made of elastic metal material. In order to maintain the supporting function of the placement column 601, it is also to make the placement column 601 slightly deformed under pressure, and then form a locking angle with the inclined guide hole 5. That is, the stability of the locking of the placement column 601 after unfolding is improved, so as to maintain the support stability of the center rod 1. At the same time, the placement column 601 made of elastic metal material also has the ability to recover, and then the placement column 601 can be reset when it is not under pressure, so that the friction lock between the placement column 601 and the inclined guide hole 5 can be released, that is, it can be pulled by the counterweight block 606 to be stored in the storage hole 604.

[0032] In other embodiments of the present invention, the placement column 601 can also be made of hard metal, and it is sufficient to maintain the roughness of the surface of the placement column 601 and the surface of the inclined guide hole 5. The placement column 601 is provided with a wear-resistant coating on the outer peripheral surface, thereby reducing the mutual wear between the placement column 601 and the inclined guide hole 5 when they are locked by friction, thereby maintaining the service life of the structure.

[0033] The center of the inclined guide hole 5 facing the large end plate 2 is within the inner diameter range of the storage hole 604, and the center of the inclined guide hole 5 away from the large end plate 2 exceeds the outer diameter range of the storage hole 604. In this way, the inclined guide hole 5 can guide the placement column 601, so that when the large end plate 2 is above the small end plate 4, the placement column 601 is expanded with the center of the center rod 1 as the center, that is, the placement column 601 forms a trumpet shape with a narrow end close to the center rod 1 and a wide end. There are more than three inclined guide holes 5 and they are distributed around the central circumference of the storage hole 604. When bearing the weight of the center rod 1, the placement column 601 will be locked with the inclined guide hole 5 by friction, and then cooperate with the multiple placement columns 601 distributed in a trumpet shape to support the vertical and stable placement of the center rod 1.

[0034] Preferably, there are three inclined guide holes 5 and placement columns 601. The three inclined guide holes 5 enable the placement columns 601 passing through their interiors to be arranged in a triangular pyramid shape. The placement columns 601 distributed in a triangular pyramid shape conform to the principle of the most stable triangle, so they can stably support the position of the central rod 1, and further enable the refractory brick casting mold to be stably placed vertically, thus facilitating the subsequent casting process for the staff. And it is not necessary for the staff to carry the casting mold to the corresponding position, nor is it necessary for the staff to control the casting mold, thereby improving the efficiency of casting and preparing refractory bricks to a certain extent.

[0035] As Figures 1 - 4 shown, when the large end plate 2 is at the lower part and cooperates with the threading machine to perform the threading operation when the threading is required for the specific use to complete the mold preparation, at this time, the counterweight 606 will pull the limiting shaft 605 and the connecting plate 602 to slide in the storage hole 604, and then drive the placement column 601 to slide and be received in the storage hole 604, so as to avoid the placement column 601 affecting the functions of the large end plate 2 and the small end plate 4. After the threading machine completes the threading, the central rod 1 is removed from the threading machine and the central rod 1 is reversed, so that the large end plate 2 is at the upper part. At this time, the counterweight 606 will push the limiting shaft 605 and the connecting plate 602 to slide, and then drive the placement column 601 to pass through the inclined guide hole 5 and be distributed in a flared shape with a narrow upper part and a wide lower part. Subsequently, the placement column 601 can be connected to the ground and be under the heavy pressure of the device. After that, the flared placement column 601 will be compressed, and then the placement column 601 will be friction-locked with the inner wall of the inclined guide hole 5. Next, the central rod 1 can be placed vertically and stably, and finally the casting process can be carried out to prepare refractory bricks.

[0036] And after the placement column 601 is friction-locked with the inclined guide hole 5, the placement column 601 will support the end of the central rod 1 and be stably placed vertically at a certain height, so that a certain distance can be maintained between the small end plate 4 and the ground, thereby keeping the threading groove 7 opened on the small end plate 4 communicating with the external environment. During the casting process, the communication between the threading groove 7 and the external environment will enable the residual air in the mold to be squeezed out from the threading groove 7 of the small end plate 4, thereby reducing the probability of a large number of pores appearing in the formed refractory brick, that is, reducing the probability of the quality of the prepared refractory brick decreasing.

Claims

1. A casting mold for slit refractory bricks, comprising a conical tube (3) and a large end plate (2) and a small end plate (4) connected to both ends of the conical tube (3), wherein the large end plate (2) and the small end plate (4) are distributed at both ends of a center rod (1), characterized in that: The center rod (1) is provided with a positioning mechanism (6) at a position corresponding to the small end plate (4); The positioning mechanism (6) comprises a limiting shaft (605) and a placement column (601), the limiting shaft (605) is slidably connected in a storage hole (604), the storage hole (604) is opened in the axial direction of the center rod (1), and the two ends of the limiting shaft (605) are respectively provided with a counterweight block (606) and a connecting plate (602), and the counterweight block (606) and the connecting plate (602) are sequentially arranged along the direction from the large end plate (2) to the small end plate (4); One end of the placement column (601) is hinged to the connection plate (602), and the other end of the placement column (601) is slidably matched with an inclined guide hole (5) for the placement column to pass through. There are more than three inclined guide holes (5) distributed around the central circumference of the storage hole (604).

2. A casting mold for slit refractory bricks according to claim 1, characterized in that: The inclined guide holes (5) and the placement columns (601) are each provided in three numbers, and the three inclined guide holes (5) and the three placement columns (601) are evenly distributed around the circumference.

3. A casting mold for slit refractory bricks according to claim 1, characterized in that: A limiting ring (603) is provided in the storage hole (604) and is slidably matched with the limiting shaft (605), and the inner diameter of the limiting ring (603) is smaller than the outer diameter of the counterweight block (606).

4. A casting mold for slit refractory bricks according to claim 1, characterized in that: The counterweight block (606) is made of a solid iron block.

5. The casting mold for slit refractory bricks according to claim 1, characterized in that: The placement column (601) is made of elastic metal material.

6. A casting mold for slit refractory bricks according to claim 1, characterized in that: The outer peripheral surface of the placement column (601) is provided with a wear-resistant coating.

7. A casting mold for slit refractory bricks according to claim 1, characterized in that: The large end plate (2) and the small end plate (4) are provided with corresponding belt-threading grooves (7).

8. A casting mold for slit refractory bricks according to claim 1, characterized in that: The storage hole (604) passes through the two end walls of the center rod (1), the limiting shaft (605) is threadedly connected to the screw hole opened in the center of the connecting plate (602), and the upper end surface of the limiting shaft (605) is provided with a hexagonal groove.

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