Air-permeable core forming mold device and air-permeable core

Abstract

This utility model provides a permeable core forming mold device and a permeable core, belonging to the field of permeable core forming technology. The technical solution of the permeable core forming mold device includes a first plate and a mounting frame. The first plate has a first opening communicating with a filling port. A first fixing member is connected to the first plate. One end of a slit blank extending from the first opening is connected to the first fixing member. The mounting frame has a fixed part and a mounting part connected together. The fixed part is connected to the first plate, and the mounting part extends towards the filling port. One end of the mounting part can connect to an alarm brick core, thus fixing the alarm brick core in the forming space. This utility model, by setting up the first plate, the first fixing member, and the mounting frame, stably fixes the slit blank and the alarm brick core, reducing the displacement of the slit blank and the alarm brick core, ensuring the accuracy of the slit gap and the position of the alarm brick core, and improving the overall forming quality of the permeable core.

Description

Technical Field

[0001] This utility model relates to the field of breathable core molding technology, and in particular to a breathable core molding die device. Background Technology

[0002] In recent years, due to increasingly stringent requirements for steel quality, improvements in steelmaking technology and processes have become necessary. Ladle refining technology is a crucial refining process in steelmaking, regulating steel composition and molten steel temperature. By injecting inert gases such as argon into the furnace through permeable bricks installed at the bottom of the ladle, the gases expand dramatically upon contact with high temperatures, acting as a stirring agent and refining agent, thus improving the quality of the cast billet. The permeable brick is a key functional component for the smooth implementation of this process, and the permeable core is an important part of the permeable brick. In one existing type of permeable core, an alarm brick is embedded within. During high-temperature operations, when the permeable core is corroded to the location of the alarm brick, the alarm brick changes color to indicate an alarm, thus reminding workers to promptly repair or replace the permeable core.

[0003] In the production process of the breathable core, the common method is to pre-embed slit blanks and alarm bricks in the mold and then fire them at high temperature to form the breathable channel and alarm structure. However, in this method, it is difficult to stably fix the position of the slit blanks and alarm brick cores, which can easily lead to displacement of the slit blanks during the injection process, affecting the forming accuracy of the slit gaps in the breathable core. At the same time, it is difficult to accurately control the position of the alarm brick core in the mold, which in turn affects the overall performance of the breathable core. Utility Model Content

[0004] This invention addresses the problem that current molds often fail to stably fix the positions of the slit blank and the alarm brick core, leading to displacement of the slit blank and difficulty in accurately controlling the position of the alarm brick core within the mold. It proposes a permeable core forming mold device and a permeable core.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a permeable core forming mold device, including a mold body and multiple slit blanks. The mold body has a forming space, and one end of the mold body has an injection port communicating with the forming space. The multiple slit blanks are evenly distributed in the forming space along the circumference of the injection port. It also includes a first plate and a mounting frame. The first plate has a first opening that penetrates its body. The first plate is connected to the end of the mold body with the injection port. The first opening communicates with the injection port. The first plate is connected to a first fixing member. The end of the slit blank extending out of the first opening is connected to the first fixing member. The mounting frame has a fixed part and a mounting part connected to each other. The fixed part is connected to the first plate, and the mounting part extends toward the injection port. One end of the mounting part can be connected to an alarm brick core so that the alarm brick core is fixed in the forming space.

[0007] Furthermore, the fixing part includes a crossbeam and vertical beams disposed at opposite ends of the crossbeam. The vertical beams are connected to the first plate. The mounting part includes a mounting column. One end of the mounting column is fixed to the middle of the crossbeam. The mounting column extends toward the injection port, and the end of the mounting column opposite the crossbeam is connected to the alarm brick core.

[0008] Furthermore, the vertical beam is provided with a first screw hole, and the first plate is provided with a second screw hole. The vertical beam and the first plate are connected by a first connecting bolt passing through the first screw hole and the second screw hole.

[0009] Furthermore, the first plate is provided with a plurality of first slit channels for the slit billet to pass through. The plurality of first slit channels are evenly distributed along the circumference of the first opening. The first opening is coaxially arranged with the injection port. The first slit channels extend radially along the first opening, and the opening of the first slit channel is formed on the inner wall of the first opening.

[0010] Furthermore, the first fixing member includes a fixing ring body, which has a working through hole. The fixing ring body is fixedly connected to the first plate body, the working through hole is connected to the injection port, the working through hole is coaxially arranged with the first opening, and the diameter of the working through hole is larger than the diameter of the first opening. The mounting bracket is connected in the working through hole, and one end of the slit billet extending out of the first opening is connected to the fixing ring body.

[0011] Furthermore, the device also includes a second plate and a slit base. The mold body has a demolding port at one end relative to the injection port, which communicates with the molding space. The slit base is connected to the mold body to close the demolding port. The slit base has multiple second slit channels for the slit blank to pass through. The multiple second slit channels are evenly distributed around the circumference of the demolding port and extend radially along the demolding port. The second plate has a second opening with a diameter smaller than that of the slit base. The second plate has a second fixing member. The second plate is connected to the mold body to clamp the slit base. One end of the slit blank extending out of the second slit channel is connected to the second fixing member.

[0012] Furthermore, a tensioning mechanism is connected between the first plate and the second plate. The tensioning mechanism includes a positioning and fixing block, a tensioning rod, and a tensioning locking member. The tensioning locking member is connected to the first plate, and the positioning and fixing block is connected to the second plate. One end of the tensioning rod is movably connected to the positioning and fixing block, and the other end is movably connected to the tensioning locking member. The tensioning locking member is used to at least tension the tensioning rod, thereby making the first plate, the second plate, and the mold body fit tightly together.

[0013] Furthermore, the forming space gradually decreases in diameter along its own axial direction from the injection port.

[0014] This utility model also provides a breathable core manufactured by a breathable core forming mold device based on any one of the above claims, including a brick core body and an alarm brick core. The brick core body is provided with multiple slits and gaps, which penetrate the brick core body along the axial direction of the brick core body. The multiple slits and gaps are evenly distributed along the circumference of the brick core body. The alarm brick core is fixed in the middle of the brick core body, and the extension direction of the alarm brick core is consistent with the extension direction of the brick core body.

[0015] Furthermore, the cross-sectional diameter of the brick core gradually decreases along its own axial direction.

[0016] As can be seen from the above technical solutions, the advantages of this utility model are:

[0017] This utility model, by setting up a first plate, a first fixing member, and a mounting frame, stably fixes the slit blank and the alarm brick core, greatly reducing the displacement of the slit blank and the alarm brick core during the injection process, ensuring the accuracy of the slit gap of the ventilated core and the position of the alarm brick core, thereby improving the overall molding quality of the ventilated core. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is an exploded view of the structure of the device in one embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the device in one embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the breathable core in one embodiment of this utility model.

[0022] Explanation of key figure labels:

[0023] 100. Mold body; 110. Injection port; 120. Demolding port; 200. Slit blank; 300. First plate; 310. First opening; 320. First slit through groove; 400. Mounting bracket; 410. Fixing part; 411. Horizontal beam; 412. Vertical beam; 420. Mounting part; 421. Mounting column; 500. First fixing part; 510. Fixing ring; 520. Working through hole; 600. Second plate; 610. Second opening; 700. Slit base; 710. Second slit through groove; 800. Tensioning mechanism; 810. Positioning fixing block; 820. Tensioning rod; 830. Tensioning locking part; 910. Brick core body; 920. Alarm brick core; 930. Slit gap. Detailed Implementation

[0024] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0025] Please see Figures 1-2 A permeable core molding die device includes a die body 100 and a plurality of slit blanks 200. The die body 100 has a molding space, and one end of the die body 100 has an injection port 110 communicating with the molding space. The plurality of slit blanks 200 are evenly distributed in the molding space along the circumference of the injection port 110. The device also includes a first plate 300 and a mounting bracket 400. The first plate 300 has a first opening 310 penetrating its body and is connected to the die body 100 where the injection port 110 is located. At one end, the first opening 310 is connected to the injection port 110. The first plate 300 is connected to the first fixing member 500. The end of the slit blank 200 extending out of the first opening 310 is connected to the first fixing member 500. The mounting frame 400 is provided with a fixing part 410 and a mounting part 420 connected to each other. The fixing part 410 is connected to the first plate 300. The mounting part 420 extends toward the injection port 110, and one end of the mounting part 420 can be connected to the alarm brick core 920 so that the alarm brick core 920 is fixed in the molding space.

[0026] In this embodiment, as Figure 1As shown, the mold body 100 has a cylindrical structure with a hollow interior to form a molding space that extends along its axial direction. The mold body 100 is placed vertically, and an injection port 110 is provided at the upper end of the mold body 100. The slit strip 200 has a rectangular strip structure. The first plate 300 is placed horizontally, and its lower end face is connected to the upper end face of the mold body 100. The first opening 310 of the first plate 300 is connected to the injection port 110. Multiple slit strips 200 are evenly distributed around the circumference of the injection port, and the slit strips 200 extend through the molding space along their length, thus forming a venting channel through the body after the venting core is formed. The top of the slit strip 200 extends out of the injection port 110. 10, and connected to the first fixing member 500 connected to the first plate 300, thereby fixing the slit blank 200. In addition, a mounting bracket 400 is also connected and fixed on the first plate 300. The mounting bracket 400 is connected to the upper side of the injection port 110. The fixing part 410 of the mounting bracket 400 can be fixedly connected to the first plate 300. The mounting part 420 of the mounting bracket 400 extends toward the injection port 110, and the end of the mounting part 420 near the injection port 110 can be fixedly connected to the alarm brick core 920. The alarm brick core 920 is a long strip structure. The extension direction of the alarm brick core 920 is consistent with the extension direction of the molding space. The alarm brick core 920 is fixed in the molding space in the vertical direction by the mounting part 420.

[0027] In the actual working process, the first plate 300 is first connected to one end of the injection port 110 of the mold body 100. Multiple slit blanks 200 are evenly distributed along the circumference of the forming space and pass through the forming space. The upper end of the slit blank 200 extends out of the injection port 110 and the first opening 310 and is fixedly connected to the first fixing member 500. Then, the upper end of the alarm brick core 920 is connected to the mounting part 420. Then, the alarm brick core 920 is placed in the forming space and the fixing part 410 is fixedly connected to the first plate 300, thereby completing the assembly of the mold device. Then, material is injected into the molding space of the mold body 100 through the injection port 110. Since the slit blank 200 has been stably fixed, the material flows around the slit blank 200 during the injection process and gradually accumulates in the molding space. At the same time, the alarm brick core 920 fixed by the mounting bracket 400 is located in the molding space, and the material also forms around the alarm brick core 920. Then, the mold is fired to solidify the material into a breathable core with a breathable channel and an alarm brick fixed inside. The slit blank 200 can be a polyester film structure that burns off during the firing process.

[0028] In the above structure, by setting the first plate 300, the first fixing member 500 and the mounting bracket 400, the slit blank 200 and the alarm brick core 920 are stably fixed, which greatly reduces the displacement of the slit blank 200 and the alarm brick core 920 during the injection process, and ensures the accuracy of the position of the slit gap 930 of the ventilated core and the alarm brick core 920, thereby improving the overall molding quality of the ventilated core.

[0029] In particular, the components are mostly connected by bolts or other detachable methods. For example, the first plate 300 and the mold body 100 are connected by bolts, which facilitates disassembly and maintenance when the mold device malfunctions or when parts need to be replaced, reducing maintenance costs and increasing the service life of the mold device. In addition, the mold body 100 can be an integral rolled structure, which can save time in disassembling and assembling the mold. The alarm brick core 920 can be made of stainless steel to improve its high temperature resistance, and the first plate 300 can be made of nylon, which effectively makes the mold lighter overall.

[0030] In the specific structure of the fixing part 410, the fixing part 410 includes a crossbeam 411 and vertical beams 412 disposed at opposite ends of the crossbeam 411. The vertical beams 412 are connected to the first plate 300. The mounting part 420 includes a mounting column 421. One end of the mounting column 421 is fixed to the middle of the crossbeam 411. The mounting column 421 extends toward the injection port 110, and one end of the mounting column 421 opposite to the crossbeam 411 is connected to the alarm brick core 920. The vertical beam 412 is provided with a first screw hole, and the first plate 300 is provided with a second screw hole. The vertical beam 412 and the first plate 300 are connected by a first connecting bolt passing through the first screw hole and the second screw hole.

[0031] In this embodiment, as Figure 1As shown, the crossbeam 411 is a strip structure. Vertical beams 412 are fixed at both ends of the crossbeam 411 along its length. The extension direction of the vertical beams 412 is perpendicular to the extension direction of the crossbeam 411. The vertical beams 412 are placed vertically, and their bottom ends are fixedly connected to the first plate 300. The two vertical beams 412 are fixedly connected to opposite sides of the first opening 310, thus placing the crossbeam 411 horizontally above the first opening 310. A mounting column 421 is connected to the middle area of ​​the crossbeam 411. The mounting column 421 extends vertically, and its bottom end extends to the injection port 110. At the location where the bottom of the mounting column 421 is connected to the alarm brick core 920, the vertical beam 412 is provided with a first screw hole and the first plate 300 is provided with a second screw hole. The first connecting bolt is passed through the first screw hole and the second screw hole in sequence, thereby fixing the mounting bracket 400 to the first plate 300. The mounting bracket 400 is fixed to the first plate 300 through the connection of bolts and screw holes, which is convenient for installation and disassembly, and has good connection strength and stability. At the same time, it can also realize the connection positioning function of the mounting bracket 400, improve the accuracy of the position of the alarm brick core 920, and ensure the quality of the ventilated core.

[0032] By installing the column 421, which extends from the middle of the crossbeam 411 to the injection port 110 and connects to the alarm brick core 920, the alarm brick core 920 can be precisely positioned in the predetermined middle position within the molding space. This ensures the reliability of the alarm function during actual use of the ventilated core and improves the overall performance and quality stability of the product. The frame structure formed by the crossbeam 411 and the vertical beam 412 of the fixing part 410, and the bolted connection between the vertical beam 412 and the first plate 300, greatly enhances the connection stability between the mounting frame 400 and the first plate 300. During the mold injection process, it can effectively resist the impact and pressure generated during material injection, preventing the mounting frame 400 from shaking or shifting. This ensures the stability of the alarm brick core 920 and the corresponding slotted blank 200 within the molding space, which is beneficial for improving the molding accuracy of the ventilated core and reducing the defect rate.

[0033] In the specific structure of the first plate 300, the first plate 300 is provided with a plurality of first slit through grooves 320 for the slit blank 200 to pass through. The plurality of first slit through grooves 320 are evenly distributed along the circumference of the first opening 310. The first opening 310 is coaxially arranged with the injection port 110. The first slit through grooves 320 extend radially along the first opening 310, and the opening of the first slit through grooves 320 is formed on the inner wall of the first opening 310.

[0034] In this embodiment, the first slit groove 320 is a rectangular groove structure. The first slit groove 320 extends outward relative to the first opening 310 radially, that is, the first slit groove 320 extends outward from the inner wall of the first opening 310, and its length allows the slit billet 200 to pass through. Multiple first slit grooves 320 are evenly spaced around the circumference of the first opening 310, and the first opening 310 is coaxially arranged with the injection port 110, so that one slit billet 200 passes through one first slit groove 320. After passing through the first slit groove 320, one end of the slit groove protruding from the first opening 310 is connected and fixed to the first fixing member 500. The design of the first slit groove 320 being evenly distributed circumferentially along the first opening 310 and extending radially can accurately position the slit blank 200. After passing through the slit groove, the position of the slit blank 200 is initially defined. With the help of the first fixing member 500, the displacement of the slit blank 200 during the injection process is greatly reduced, ensuring the accuracy of the position of the slit gap 930 of the air-permeable core, thereby improving the stability of the air permeability performance of the air-permeable core.

[0035] The first fixing member 500 includes a fixing ring 510, which has a working through hole 520. The fixing ring 510 is fixedly connected to the first plate 300. The working through hole 520 communicates with the injection port 110. The working through hole 520 is coaxially arranged with the first opening 310, and the diameter of the working through hole 520 is larger than the diameter of the first opening 310. The mounting bracket 400 is connected in the working through hole 520. One end of the slit blank 200 extending out of the first opening 310 is connected to the fixing ring 510.

[0036] In this embodiment, the fixing ring 510 is an annular plate structure. The fixing ring 510 has a working through hole 520 in the middle. During installation, the fixing ring 510 can be fixed to the first plate 300 with bolts. The working through hole 520 is coaxially arranged with the first opening 310. The diameter of the working through hole 520 is larger than that of the first opening 310, thereby including the first opening 310. Thus, the material injected by the injection port 110 can enter the molding space through the working through hole 520 without obstruction. After one end of the slit blank 200 passes through the injection port 110, it passes through the working through hole 520 and is fixed at the upper end face of the fixing ring 510. At the same time, the mounting bracket 400 is fixed in the working through hole 520. The fixing ring 510 provides a stable connection point for the end of the slit blank 200 extending out of the first opening 310. It can be firmly connected to the slit blank 200 by setting a connection part, such as a groove or a connecting block. Compared with other simple fixing methods, it greatly improves the stability of the slit blank 200 at the entrance of the molding space. The diameter of the working through hole 520 is larger than the diameter of the first opening 310, and it is coaxially set with the injection port 110 and the first opening 310, providing a smooth flow channel for the material. The working through hole 520 of the fixing ring 510 provides a suitable installation space for the mounting bracket 400, so that the mounting bracket 400 can be firmly installed inside, making the structure between the various parts of the mold more compact and reasonable.

[0037] The fixing ring 510 can be made of wood, which further improves the overall portability of the device. In the fixing method with the slit blank 200, a gas nail gun can be used to nail the slit blank 200 to the fixing ring 510 for easy fixing.

[0038] In addition, the device also includes a second plate 600 and a slit base 700. The mold body 100 has a demolding port 120 at one end opposite to the injection port 110. The demolding port 120 communicates with the molding space. The slit base 700 is connected to the mold body 100 to close the demolding port 120. The slit base 700 has a plurality of second slit channels 710 for the slit blank 200 to pass through. The plurality of second slit channels 710 are evenly distributed along the circumference of the demolding port 120 and extend radially along the demolding port 120. The second plate 600 has a second opening 610. The diameter of the second opening 610 is smaller than the diameter of the slit base 700. The second plate 600 has a second fixing member. The second plate 600 is connected to the mold body 100 to clamp the slit base 700. One end of the slit blank 200 extending out of the second slit channel 710 is connected to the second fixing member.

[0039] In this embodiment, as Figure 1As shown, the second plate 600 is also a plate structure, and its material is similar to that of the first plate 300. The second plate 600 has a second opening 610 at its center. The diameter of the second opening 610 is smaller than that of the slit base 700 so that it can cooperate with the slit base 700 during installation and play a role in clamping and fixing the slit base 700. The second plate 600 is connected to the mold body 100. In addition, the second plate 600 is connected to a second fastener. The form of the second fastener can be similar to that of the first fastener 500, and it is used to connect and fix one end of the slit blank 200. The slit base 700 has a disc-shaped structure, and its size and shape match the demolding opening 120 of the mold body 100 to ensure a tight connection to seal the demolding opening 120. The slit base 700 is provided with a plurality of second slit through slots 710. These through slots are evenly distributed along the circumference of the demolding opening 120 and extend radially along the demolding opening 120 to ensure that the slit blank 200 can pass through smoothly, and play a guiding and positioning role for the slit blank 200 at one end of the demolding opening 120.

[0040] In the above structure, by setting the second plate 600 and the slit base 700, the other end of the slit billet 200 is stably fixed. Together with the first plate 300 and the first fixing member 500, the position of the slit billet 200 is stabilized in all directions within the entire forming space. This further reduces the possibility of displacement of the slit billet 200 during the injection process, greatly improving the accuracy of the slit gap 930 position in the venting core, thereby significantly improving the venting performance and overall quality of the venting core. The slit base 700 is replaceable, allowing it to be changed according to the venting requirements of different steel mills, thus improving the operability of the mold and greatly saving production costs.

[0041] Specifically, a tensioning mechanism 800 is connected between the first plate 300 and the second plate 600. The tensioning mechanism 800 includes a positioning and fixing block 810, a tensioning rod 820, and a tensioning locking member 830. The tensioning locking member 830 is connected to the first plate 300, and the positioning and fixing block 810 is connected to the second plate 600. One end of the tensioning rod 820 is movably connected to the positioning and fixing block 810, and the other end is movably connected to the tensioning locking member 830. The tensioning locking member 830 is used at least to tension the tensioning rod 820, thereby making the first plate 300, the second plate 600, and the mold body 100 fit tightly together.

[0042] In this embodiment, as Figure 1 , Figure 2As shown, the positioning and fixing block 810 is usually a block structure. The positioning and fixing block 810 is provided with a connecting hole or connecting groove for movably connecting with one end of the tensioning rod 820. The connection method can be a pin connection, that is, a pin is inserted into the corresponding hole at the end of the tensioning rod 820 through the connecting hole of the positioning and fixing block 810, so that the tensioning rod 820 can rotate flexibly relative to the positioning and fixing block 810 while maintaining the connection state. This ensures that the connection between the tensioning rod 820 and the positioning and fixing block 810 is stable and reliable during the operation of the tensioning mechanism 800. The positioning and fixing block 810 is fixed to the second plate 600 by welding, bolt connection or other methods. The tension rod 820 is a slender rod-shaped structure, the length of which is customized according to the distance between the first plate 300 and the second plate 600 and the overall size of the mold. One end of the tension rod 820 has a structure adapted to the connection of the positioning and fixing block 810, such as a pin connection hole, and the other end cooperates with the tension locking component 830. The tension locking component 830 can adopt an existing tensioning structure, consisting of a locking body and an adjusting component. The adjusting component can be in the form of a knob, nut, or buckle. By rotating the adjusting component or by locking the buckle into the retaining ring, the tensioning or loosening operation of the tension rod 820 can be realized. The tension locking component 830 is fixed to the first plate 300 by welding, bolt connection, or other methods. In addition, two tensioning mechanisms 800 can be set, located at opposite ends of the mold body 100, respectively, to ensure the stability of the tension force.

[0043] In actual operation, when assembling the mold device, the positioning and fixing block 810 is connected to the second plate 600 by welding or bolt fastening. One end of the tension rod 820 is movably connected to the positioning and fixing block 810 to ensure that the tension rod 820 can rotate freely. The tension locking member 830 is installed on the first plate 300, and the tension rod 820 is movably connected to the tension locking member 830 to complete the assembly of the tensioning mechanism 800. At this time, the tension rod 820 is in an untensioned state, and the connection between the first plate 300, the second plate 600 and the mold body 100 is relatively loose. Before material is injected into the mold, the tensioning mechanism 800 needs to be activated. The operator tightens the locking member 830, causing it to move axially relative to the tensioning rod 820, gradually tightening the tensioning rod 820. This generates a tensile force, causing the first plate 300, the second plate 600, and the mold body 100 to gradually and tightly adhere together under the action of the tensile force. When the material solidifies and molding within the mold body 100, and demolding is required, the tensioning mechanism 800 is released.

[0044] The tensioning mechanism 800 applies tension to the first plate 300, the second plate 600, and the mold body 100, ensuring they fit tightly together and greatly enhancing the overall stability of the mold structure. During the injection process, it effectively resists the impact and pressure generated by material injection, preventing loosening or displacement between mold components and ensuring the structural integrity of the mold during operation, thereby improving the molding accuracy and quality stability of the venting core.

[0045] Specifically, the diameter of the molding space gradually decreases along its own axial direction from the injection port 110. The diameter of the molding space gradually decreases from top to bottom along the vertical direction, so that the molded vent core has a frustum structure. During demolding, the mold body 100 is inverted to facilitate demolding.

[0046] Please see Figure 3 This utility model also provides a breathable core manufactured based on the breathable core molding die device, including a core body 910 and an alarm core 920. The core body 910 has multiple slits 930, which penetrate the core body 910 along its axial direction. The multiple slits 930 are evenly distributed around the core body 910. The alarm core 920 is fixed in the middle of the core body 910, and the extension direction of the alarm core 920 is consistent with the extension direction of the core body 910. The cross-sectional diameter of the core body 910 gradually decreases along its axial direction.

[0047] In this embodiment, the brick core body 910 has a columnar structure with its cross-sectional diameter gradually decreasing along its axial direction. Multiple slits 930 are evenly distributed on the brick core body 910, and these slits 930 penetrate the entire brick core body 910 along its axial direction, forming elongated channels to ensure that the structural strength of the brick core body 910 is not compromised while achieving air permeability. The multiple slits 930 are evenly arranged circumferentially around the brick core body 910, ensuring uniform air permeability throughout the entire brick core body 910. The alarm brick core 920 is located in the middle of the brick core body 910, and its extension direction is consistent with the extension direction of the brick core body 910.

[0048] In the above structure, the brick core body 910 has multiple narrow slits 930, providing a large number of flow channels for gas, increasing the contact area between the gas and the brick core body 910, and enabling the gas to pass through the ventilated core quickly and evenly, achieving efficient ventilation. The alarm brick core 920 is fixed in the middle of the brick core body 910. When the brick core body 910 is corroded by high temperature to the position of the alarm brick core 920, the alarm brick core 920 will change color due to high temperature, thereby reminding the operator to repair and replace the ventilated core in a timely manner.

[0049] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily 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 is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A permeable core forming mold device, comprising a mold body (100) and a plurality of slit blanks (200), wherein the mold body (100) is provided with a forming space, and one end of the mold body (100) is provided with an injection port (110) communicating with the forming space, and the plurality of slit blanks (200) are uniformly distributed circumferentially along the injection port (110) in the forming space, characterized in that, It also includes a first plate (300) and a mounting bracket (400). The first plate (300) has a first opening (310) that penetrates its body. The first plate (300) is connected to one end of the mold body (100) where the injection port (110) is located. The first opening (310) communicates with the injection port (110). The first plate (300) is connected to a first fixing member (500). One end of the slit blank (200) that extends out of the first opening (310) is connected to the first fixing member (500). The mounting bracket (400) has a fixed part (410) and a mounting part (420) that are connected to each other. The fixed part (410) is connected to the first plate (300). The mounting part (420) extends toward the injection port (110), and one end of the mounting part (420) can be connected to an alarm brick core (920) so that the alarm brick core (920) is fixed in the molding space.

2. The permeable core forming mold device according to claim 1, characterized in that, The fixing part (410) includes a crossbeam (411) and vertical beams (412) disposed at opposite ends of the crossbeam (411). The vertical beams (412) are connected to the first plate (300). The mounting part (420) includes a mounting column (421). One end of the mounting column (421) is fixed to the middle of the crossbeam (411). The mounting column (421) extends toward the injection port (110), and one end of the mounting column (421) opposite to the crossbeam (411) is connected to the alarm brick core (920).

3. The permeable core forming mold device according to claim 2, characterized in that, The vertical beam (412) is provided with a first screw hole, and the first plate (300) is provided with a second screw hole. The vertical beam (412) and the first plate (300) are connected by a first connecting bolt passing through the first screw hole and the second screw hole.

4. The permeable core forming mold device according to claim 1, characterized in that, The first plate (300) is provided with a plurality of first slit channels (320) for the slit blank (200) to pass through. The plurality of first slit channels (320) are evenly distributed along the circumference of the first opening (310). The first opening (310) is coaxially arranged with the injection port (110). The first slit channels (320) extend radially along the first opening (310), and the opening of the first slit channels (320) is formed on the inner wall of the first opening (310).

5. The permeable core forming mold device according to claim 4, characterized in that, The first fixing member (500) includes a fixing ring (510), the fixing ring (510) is provided with a working through hole (520), the fixing ring (510) is fixedly connected to the first plate (300), the working through hole (520) communicates with the injection port (110), the working through hole (520) is coaxially arranged with the first opening (310), and the diameter of the working through hole (520) is larger than the diameter of the first opening (310). The mounting bracket (400) is connected in the working through hole (520), and one end of the slit blank (200) extending out of the first opening (310) is connected to the fixing ring (510).

6. The permeable core forming mold device according to claim 1, characterized in that, It also includes a second plate (600) and a slit base (700). The mold body (100) has a demolding port (120) at one end opposite to the injection port (110). The demolding port (120) communicates with the molding space. The slit base (700) is connected to the mold body (100) to close the demolding port (120). The slit base (700) has a plurality of second slit channels (710) for the slit blank (200) to pass through. The plurality of second slit channels (710) are arranged around the demolding port (120). The second slit groove (710) extends radially along the demolding opening (120) and is evenly distributed. The second plate (600) is provided with a second opening (610), the diameter of which is smaller than the diameter of the slit base (700). The second plate (600) is provided with a second fixing member. The second plate (600) is connected to the mold body (100) to clamp the slit base (700). One end of the slit blank (200) extending out of the second slit groove (710) is connected to the second fixing member.

7. The permeable core forming mold device according to claim 6, characterized in that, A tensioning mechanism (800) is connected between the first plate (300) and the second plate (600). The tensioning mechanism (800) includes a positioning and fixing block (810), a tensioning rod (820), and a tensioning locking member (830). The tensioning locking member (830) is connected to the first plate (300), and the positioning and fixing block (810) is connected to the second plate (600). One end of the tensioning rod (820) is movably connected to the positioning and fixing block (810), and the other end is movably connected to the tensioning locking member (830). The tensioning locking member (830) is at least used to tension the tensioning rod (820), thereby making the first plate (300), the second plate (600), and the mold body (100) fit tightly together.

8. The permeable core forming mold device according to claim 1, characterized in that, The forming space gradually decreases in cross-sectional diameter from the injection port (110) along its own axial direction.

9. A breathable core manufactured based on the breathable core molding die device according to any one of claims 1-8, characterized in that, The device includes a brick core body (910) and an alarm brick core (920). The brick core body (910) has multiple slits (930) that penetrate the brick core body (910) along its axial direction. The multiple slits (930) are evenly distributed around the brick core body (910). The alarm brick core (920) is fixed in the middle of the brick core body (910), and the extension direction of the alarm brick core (920) is consistent with the extension direction of the brick core body (910).

10. A breathable core according to claim 9, characterized in that, The cross-sectional diameter of the brick core body (910) gradually decreases along its own axial direction.

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