A ceramic mold with easy-to-change mold core

Abstract

This utility model relates to the field of mold technology, and in particular to a ceramic mold with an easily replaceable mold core. It includes an upper mold and a lower mold positioned below the upper mold. The upper and lower molds are slidably connected by guide pillars. A mold core is inserted into a positioning groove on the upper surface of the lower mold. A rotating rod is positioned below the mold core, and a lever is fixedly connected to the surface of the rotating rod. A U-shaped rod is positioned below the lever, and insert blocks are inserted into square grooves at both ends of the U-shaped rod. The rotating rod drives the lever to rotate clockwise or counterclockwise. During installation, simply rotating the worm gear, through worm wheel transmission, rotates the rotating rod, which drives the lever to press against the U-shaped rod, allowing the insert blocks to move laterally and lock the mold core. Disassembly is performed in reverse; the lever releases the restriction and lifts the mold core, significantly shortening replacement time and improving production preparation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a ceramic mold that is easy to replace the mold core. Background Technology

[0002] In the industrial production process of ceramic products, ceramic molds are the core equipment that determines the product forming accuracy and production continuity. Their performance parameters are directly related to the dimensional tolerances, surface quality, and even the stability of subsequent firing processes of the ceramic blank. As the core functional component of the mold, the mold core needs to be frequently replaced according to the product specifications and shape differences to meet the flexible production needs of multiple varieties and small batches.

[0003] Currently, the most widely used methods for fixing mold cores in the industry are traditional structures such as bolt fastening and snap-fit ​​connections. While these methods can meet the basic connection strength requirements, they reveal significant efficiency bottlenecks in the mold core replacement process: when using bolt fastening structures, operators need to use specialized tools such as wrenches and screwdrivers to disassemble multiple bolts distributed along the edge of the mold core one by one to remove the old mold core; and when installing a new mold core, not only must all bolts be re-aligned and tightened, but repeated calibration is also required to ensure the coaxiality or flatness of the mold core and the mold base. The entire process is cumbersome and requires a high level of worker skill.

[0004] In ceramic product production scenarios involving multiple batch changes, this tool-dependent disassembly and assembly method can lead to single-batch mold core replacement taking tens of minutes, significantly reducing effective production time. Especially in fields such as sanitary ware ceramics and precision electronic ceramics, which require frequent mold core replacements, frequent bolt tightening operations not only significantly reduce equipment utilization on the production line but can also cause secondary problems such as stripped bolts and wear on the screw holes in the mold base due to repeated assembly and disassembly, further increasing equipment maintenance costs. Therefore, optimizing and upgrading the mold core fixing structure has become a key technological breakthrough for improving ceramic product production efficiency and reducing labor costs. Utility Model Content

[0005] To overcome the technical defects of the existing technology, this utility model provides a ceramic mold that is easy to replace the mold core.

[0006] The technical solution adopted by this utility model is: a ceramic mold that facilitates core replacement, including an upper mold and a lower mold disposed below the upper mold. The upper mold and the lower mold are slidably connected by guide pillars. A mold core is inserted into a positioning groove opened on the upper surface of the lower mold. A rotating rod is disposed below the mold core. A lever plate is fixedly connected to the surface of the rotating rod. A U-shaped rod is disposed below the lever plate. Insert blocks are inserted into square grooves opened at both ends of the U-shaped rod. The rotating rod is used to drive the lever plate to rotate clockwise or counterclockwise. When the lever plate rotates counterclockwise, it is used to release the restriction on the mold core and lift the mold core. When the lever plate rotates clockwise, it is used to install the mold core and press the U-shaped rod to make the insert blocks move laterally to lock the mold core.

[0007] By adopting the above technical solution, the mold core can be quickly installed and disassembled through the rotation of the rod and the linkage of the lever, U-shaped rod and insert block. The mold core can be replaced without complicated operations, which greatly improves the convenience of operation.

[0008] Preferably, the U-shaped rod is inserted into a U-shaped groove inside the lower mold, the bottom of the U-shaped groove is connected to the positioning groove, and a second slot is provided inside the lower mold that is horizontally connected to the U-shaped groove, and the insert block is inserted into the second slot.

[0009] By adopting the above technical solution, the U-shaped groove provides a stable moving trajectory for the U-shaped rod, while the second slot guides the lateral movement of the insertion block, ensuring that the U-shaped rod and the insertion block will not deviate during the movement, thus guaranteeing the accuracy of the cooperation between the components.

[0010] Preferably, slots are provided on both sides of the mold core, and the insert is inserted into the slot.

[0011] By adopting the above technical solution, the cooperation between the slot and the insert can effectively fix the mold core from the side, preventing the mold core from shaking due to force during use, and ensuring the stability and precision of ceramic products during molding.

[0012] Preferably, the insert block is fixedly connected to two sides with a rotating shaft, which is inserted into a groove on the surface of the U-shaped rod. When the U-shaped rod moves downward, the groove and the rotating shaft cooperate to insert the insert block into the slot one. When the U-shaped rod moves upward, the groove and the rotating shaft cooperate to slide the insert block out of the slot one.

[0013] By adopting the above technical solution, the ingenious combination of the inclined groove and the rotating shaft transforms the vertical movement of the U-shaped rod into the lateral movement of the insert block, thereby realizing the automatic locking and unlocking of the insert block on the mold core and simplifying the operation process.

[0014] Preferably, a spring is fixedly connected to the bottom surface of the U-shaped rod, the bottom end of the spring is fixedly connected to the lower mold, and the lever is located directly above the U-shaped rod.

[0015] By adopting the above technical solution, the spring stores elastic potential energy when the U-shaped rod is pressed, and can push the U-shaped rod to automatically reset after the pressure is released by the deflector, thereby driving the insert block to disengage from slot one, providing power for the disassembly of the mold core and making the disassembly process smoother.

[0016] Preferably, two support plates are provided in the positioning groove. The support plates are fixedly connected to the lower mold. The rotating rod is inserted through a rotating hole one opened on the surface of the support plate. The rotating rod is rotatably connected to the support plate. The rotating rod is located in a rotating hole two opened on the surface of the lower mold. The rotating rod is rotatably connected to the lower mold.

[0017] By adopting the above technical solution, the support plate and the rotating hole of the lower mold work together to support and position the rotating rod, ensuring the stability of the rotating rod during rotation and avoiding the impact of the shaking of the rotating rod on the coordinated work of components such as the lever plate and U-shaped rod.

[0018] Preferably, one end of the rotating rod is fixedly connected to a worm gear, and the surface of the worm gear is meshed with a worm. Both the worm gear and the worm are located outside the lower mold.

[0019] By adopting the above technical solution, the meshing transmission of the worm gear and worm can not only realize the change of rotation direction and power transmission, but also use its self-locking characteristics to prevent the rotating rod from rotating accidentally after the mold core is installed in place, ensuring that the locking state of the mold core is stable and reliable.

[0020] Preferably, the surface of the worm gear is fitted with two bearings, the outer rings of the two bearings are fixedly connected by a connecting block and a lower mold, and the worm gear is rotatably connected by the bearings and the lower mold.

[0021] By adopting the above technical solution, the bearing configuration reduces the frictional resistance between the worm gear and the lower die during rotation, making the worm gear rotation easier and less strenuous. It also reduces component wear and extends the service life of the die.

[0022] The beneficial effects of this utility model are: by using the structural design of rotating rod to drive the dial plate to rotate clockwise or counterclockwise, and in conjunction with the linkage of U-shaped rod, insert block and other components, the quick installation and disassembly of the mold core is realized. During installation, only the worm gear needs to be rotated, and the rotating rod is rotated through worm gear transmission, which drives the dial plate to press the U-shaped rod, allowing the insert block to move laterally to lock the mold core. During disassembly, the operation is reversed, and the dial plate can release the restriction and lift the mold core, which greatly shortens the replacement time and improves the production preparation efficiency.

[0023] The mold core is placed in the positioning groove of the lower mold. By inserting the insert block into the slots on both sides of the mold core, a stable lateral constraint can be formed on the mold core, which can effectively prevent the mold core from loosening or shifting during use and ensure the forming accuracy of ceramic products.

[0024] The entire replacement process is powered by the meshing transmission of the worm and worm wheel. Utilizing the self-locking characteristics of the worm wheel and worm structure, the operator can easily lock and unlock the mold core by simply rotating the worm, without the need for complex tools or applying large external force. In addition, the lever can lift the mold core during disassembly, making it easy for the operator to remove it directly, reducing laborious operations such as manual prying and lowering the labor intensity of workers. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This utility model Figure 1 Sectional view at point AA;

[0027] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 This is a schematic diagram of the upper and lower molds in this utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the lever and the rotating rod in this utility model;

[0030] Figure 6 This utility model Figure 5 Enlarged view of point B in the middle;

[0031] Figure 7 This is a schematic diagram of the structure of the spring and U-shaped rod in this utility model;

[0032] Figure 8 This is a schematic diagram of the structure of the rotating shaft and the insert block in this utility model;

[0033] Figure 9 This is a schematic diagram of the mold core in this utility model.

[0034] Explanation of reference numerals in the attached drawings: 1. Upper mold; 2. Lower mold; 3. Mold core; 4. Insert block; 5. U-shaped groove; 6. U-shaped rod; 7. Slot 1; 8. Slot 2; 9. Inclined groove; 10. Rotating shaft; 11. Rotating rod; 12. Support plate; 13. Pulley; 14. Worm gear; 15. Worm; 16. Bearing; 17. Spring; 18. Positioning groove. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings:

[0036] like Figures 1 to 9 As shown, this embodiment provides a ceramic mold that facilitates core replacement, including an upper mold 1 and a lower mold 2 located below the upper mold 1. The upper mold 1 and the lower mold 2 are slidably connected by guide posts. A mold core 3 is inserted into a positioning groove 18 on the upper surface of the lower mold 2. A rotating rod 11 is located below the mold core 3. A lever 13 is fixedly connected to the surface of the rotating rod 11. A U-shaped rod 6 is located below the lever 13. Insert blocks 4 are inserted into square grooves at both ends of the U-shaped rod 6. The rotating rod 11 is used to drive... The lever 13 can be rotated clockwise or counterclockwise. When the lever 13 rotates counterclockwise, it is used to release the restriction on the mold core 3 and lift the mold core 3. When the lever 13 rotates clockwise, it is used to install the mold core 3 and press the U-shaped rod 6 to make the insert block 4 move laterally to lock the mold core 3. By rotating the rod 11, the lever 13, the U-shaped rod 6 and the insert block 4 are linked to realize the quick installation and disassembly of the mold core 3. The mold core can be replaced without complicated operation, which greatly improves the convenience of operation.

[0037] The U-shaped rod 6 is inserted into the U-shaped groove 5 inside the lower mold 2. The bottom of the U-shaped groove 5 is connected to the positioning groove 18. The lower mold 2 has a slot 2 8 that is horizontally connected to the U-shaped groove 5. The insert block 4 is inserted into the slot 2 8. The U-shaped groove 5 provides a stable movement trajectory for the U-shaped rod 6, and the slot 2 8 guides the horizontal movement of the insert block 4, ensuring that the U-shaped rod 6 and the insert block 4 will not deviate during the movement, thus ensuring the accuracy of the cooperation of each component.

[0038] The mold core 3 has slots 7 on both sides, and the insert block 4 is inserted into the slot 7. The cooperation between the slot 7 and the insert block 4 can effectively fix the mold core 3 from the side, preventing the mold core 3 from shaking due to force during use, and ensuring the stability and precision of ceramic products during molding.

[0039] The two sides of the insert block 4 are fixedly connected to the rotating shafts 10. The rotating shafts 10 are inserted into the inclined grooves 9 opened on the surface of the U-shaped rod 6. When the U-shaped rod 6 moves downward, the cooperation between the inclined grooves 9 and the rotating shafts 10 is used to insert the insert block 4 into the slot 7. When the U-shaped rod 6 moves upward, the cooperation between the inclined grooves 9 and the rotating shafts 10 is used to slide the insert block 4 out of the slot 7. The ingenious cooperation between the inclined grooves 9 and the rotating shafts 10 transforms the vertical movement of the U-shaped rod 6 into the lateral movement of the insert block 4, realizing the automatic locking and unlocking of the insert block 4 to the mold core 3, and simplifying the operation process.

[0040] A spring 17 is fixedly connected to the bottom surface of the U-shaped rod 6. The bottom end of the spring 17 is fixedly connected to the lower mold 2. The lever 13 is located directly above the U-shaped rod 6. When the U-shaped rod 6 is pressed, the spring 17 stores elastic potential energy. After the lever 13 releases the pressure, it can push the U-shaped rod 6 to automatically reset, thereby driving the insert 4 to disengage from the slot 7, providing power for the disassembly of the mold core 3, making the disassembly process smoother.

[0041] Two support plates 12 are provided in the positioning groove 18. The support plates 12 are fixedly connected to the lower mold 2. The rotating rod 11 is inserted through the rotating hole 1 on the surface of the support plate 12. The rotating rod 11 is rotatably connected to the support plate 12. The rotating rod 11 is located in the rotating hole 2 on the surface of the lower mold 2. The rotating rod 11 is rotatably connected to the lower mold 2. The support plate 12 and the rotating hole 2 of the lower mold 2 together provide support and positioning for the rotating rod 11, ensuring the stability of the rotating rod 11 during rotation and preventing the shaking of the rotating rod 11 from affecting the coordinated work of components such as the lever 13 and the U-shaped rod 6.

[0042] One end of the rotating rod 11 is fixedly connected to a worm gear 14, and a worm 15 is meshed with the surface of the worm gear 14. Both the worm gear 14 and the worm 15 are located outside the lower mold 2. The meshing transmission between the worm gear 14 and the worm 15 can not only realize the change of rotation direction and power transmission, but also use its self-locking characteristics to prevent the rotating rod 11 from rotating accidentally after the mold core 3 is installed in place, so as to ensure that the locking state of the mold core 3 is stable and reliable.

[0043] Two bearings 16 are fitted on the surface of the worm gear 15. The outer rings of the two bearings 16 are fixedly connected to the lower mold 2 through the connecting block. The worm gear 15 is rotatably connected to the lower mold 2 through the bearings 16. The bearings 16 reduce the frictional resistance between the worm gear 15 and the lower mold 2 when the worm gear 15 rotates, making the rotation of the worm gear 15 easier and less strenuous. At the same time, it also reduces the wear of the parts and extends the service life of the mold.

[0044] Working principle: When installing the mold core 3, first place the mold core 3 in the positioning groove 18 opened on the upper surface of the lower mold 2. At this time, the lever 13 supports the mold core 3, and the mold core 3 will not suddenly move down. Then, by rotating the worm 15, since the worm 15 is meshed with the worm wheel 14 and the worm 15 is rotatably connected to the lower mold 2 through the bearing 16, the rotation of the worm 15 will drive the worm wheel 14 to rotate, thereby causing the rotating rod 11, which is fixedly connected to the worm wheel 14, to rotate clockwise. The rotation of the rotating rod 11 will also cause the lever 13, which is fixedly connected to its surface, to rotate clockwise synchronously. As the lever 13 rotates clockwise, the mold core 3 slowly slides into the positioning groove 18 until the mold core 3... When the support plate 12 is in contact with the U-shaped rod 6, the lever 13 continues to rotate clockwise. When the lever 13 contacts the U-shaped rod 6, the lever 13 will press the U-shaped rod 6 located directly below it. Under the pressure, the U-shaped rod 6 moves downward along the U-shaped groove 5 inside the lower mold 2, and at the same time compresses the spring 17 fixedly connected to the bottom surface of the U-shaped rod 6. When the U-shaped rod 6 moves downward, the inclined groove 9 opened on its surface cooperates with the rotating shaft 10 on both sides of the insert 4. Since the insert 4 is inserted into the slot 2 8 that is horizontally connected to the U-shaped groove 5 inside the lower mold 2, under the action of the inclined groove 9, the insert 4 will move horizontally and insert into the slot 1 7 opened on both sides of the mold core 3, thereby realizing the locking and fixing of the mold core 3 and completing the installation of the mold core 3.

[0045] When it is necessary to disassemble the mold core 3, the worm gear 15 is rotated in the opposite direction. Similarly, the worm gear 15 drives the worm wheel 14 to rotate in the opposite direction, causing the rotating rod 11 to rotate counterclockwise. The dial plate 13 also rotates counterclockwise. At this time, the pressure of the dial plate 13 on the U-shaped rod 6 disappears, the compressed spring 17 returns to its original position, and pushes the U-shaped rod 6 to move upward along the U-shaped groove 5. During the upward movement of the U-shaped rod 6, the cooperation between the inclined groove 9 and the rotating shaft 10 causes the insert 4 to slide out of the slot 7, releasing the restriction on the mold core 3. At the same time, the counterclockwise rotating dial plate 13 will lift the mold core 3, making it convenient for the operator to remove the mold core 3 from the positioning groove 18 and complete the disassembly and replacement.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from the spirit and scope of the invention. All such changes and modifications fall within the scope of the invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A ceramic mold facilitating replacement of a mold core, comprising an upper mold (1) and a lower mold (2) disposed below the upper mold (1), the upper mold (1) and the lower mold (2) being connected by a slide pin, characterized in that: A mold core (3) is inserted into a positioning groove (18) on the upper surface of the lower mold (2). A rotating rod (11) is provided below the mold core (3). A lever (13) is fixedly connected to the surface of the rotating rod (11). A U-shaped rod (6) is provided below the lever (13). Insert blocks (4) are inserted into square grooves at both ends of the U-shaped rod (6). The rotating rod (11) is used to drive the lever (13) to rotate clockwise or counterclockwise. When the lever (13) rotates counterclockwise, the lever (13) is used to release the restriction on the mold core (3) and lift the mold core (3). When the lever (13) rotates clockwise, the lever (13) is used to install the mold core (3) and press the U-shaped rod (6) to make the insert blocks (4) move laterally to lock the mold core (3).

2. The ceramic mold with ease of core replacement of claim 1, wherein: The U-shaped rod (6) is inserted into the U-shaped groove (5) inside the lower mold (2). The bottom of the U-shaped groove (5) is connected to the positioning groove (18). The lower mold (2) has a slot two (8) that is horizontally connected to the U-shaped groove (5). The insert block (4) is inserted into the slot two (8).

3. A ceramic mold for easy core replacement according to claim 1, characterized in that: The mold core (3) has slots (7) on both sides, and the insert (4) is inserted into the slot (7).

4. The ceramic mold with ease of core replacement of claim 1, wherein: The insert (4) is fixedly connected to two sides of a rotating shaft (10). The rotating shaft (10) is inserted into the inclined groove (9) opened on the surface of the U-shaped rod (6). When the U-shaped rod (6) moves downward, the inclined groove (9) and the rotating shaft (10) cooperate to insert the insert (4) into the slot one (7). When the U-shaped rod (6) moves upward, the inclined groove (9) and the rotating shaft (10) cooperate to slide the insert (4) out of the slot one (7).

5. The ceramic mold with ease of core replacement of claim 1, wherein: A spring (17) is fixedly connected to the bottom surface of the U-shaped rod (6), and the bottom end of the spring (17) is fixedly connected to the lower mold (2). The lever (13) is located directly above the U-shaped rod (6).

6. The ceramic mold with ease of core replacement of claim 1, wherein: Two support plates (12) are provided in the positioning groove (18). The support plates (12) are fixedly connected to the lower mold (2). The rotating rod (11) is inserted through the rotating hole one opened on the surface of the support plate (12). The rotating rod (11) is rotatably connected to the support plate (12). The rotating rod (11) is located in the rotating hole two opened on the surface of the lower mold (2). The rotating rod (11) is rotatably connected to the lower mold (2).

7. The ceramic mold with ease of core replacement of claim 1, wherein: One end of the rotating rod (11) is fixedly connected to a worm wheel (14), and a worm (15) is meshed with the surface of the worm wheel (14). Both the worm wheel (14) and the worm (15) are located outside the lower mold (2).

8. A ceramic mold facilitating replacement of a mold core according to claim 7, characterized in that: Two bearings (16) are fitted on the surface of the worm (15). The outer rings of the two bearings (16) are fixedly connected by a connecting block and a lower mold (2). The worm (15) is rotatably connected by the bearings (16) and the lower mold (2).

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