Ceramic automatic forming machine

Abstract

The application discloses a kind of ceramic automatic forming machines, it is related to ceramic product processing technical field, including operation platform, the upper surface of the operation platform is rotatably connected with plaster mould, the inner cavity of the plaster mould is equipped with upper mould core, further including two-axis gantry for controlling the movement of upper mould core and installed on the upper surface of operation platform, the slide ram is slidably connected on the two-axis gantry, the surface of the slide ram is equipped with the fixed frame for interfacing upper mould core, the inner cavity of the fixed frame is equipped with double-layer disc, the double-layer disc can drive upper mould core gradually migrates from the edge area to the central area of plaster mould in the process of ceramic embryo forming, the posture of upper mould core is switched to different posture in different stage by double-layer disc and telescopic rotating lever, seamless connection of rolling material and edge closing compaction is realized, ensure that the embryo made is uniformly thick from top to bottom, cooperate with conical disc persistently to the side wall feeding, form the mode of two-section feeding, improve the ability of embryo material to extend upwards.

Description

Technical Field

[0001] This invention relates to the field of ceramic product processing technology, specifically to an automatic ceramic forming machine. Background Technology

[0002] Ceramic products refer to solid materials and their products made from inorganic non-metallic minerals such as natural clay, feldspar, and quartz as the main raw materials, through molding, drying, and high-temperature sintering (usually 800-1400℃).

[0003] In the ceramic product manufacturing process, the forming process is the core link that determines the product's shape, density, and subsequent processing performance, directly affecting the final product quality and production efficiency. In the current ceramic product manufacturing process, the ceramic roll forming machine is a common forming equipment. Its core working principle is to use the rotational motion of the roll head and the plaster mold to apply uniform pressure to the plastic blank in the mold, so that the blank extends and shapes along the mold cavity, ultimately forming a blank structure that matches the inner cavity of the mold or the shape of the roll head. However, in existing roll forming processes, due to the high moisture content of the blank (usually 18%–25%), it is prone to natural settling under gravity after being placed into the inner cavity of the plaster mold. At the same time, the plaster mold has strong water absorption properties. During the rotation of the mold and the pressure applied by the roll forming head, the moisture in the blank is rapidly absorbed, resulting in a significant increase in the viscosity of the blank in some areas, a decrease in plasticity, and a corresponding reduction in radial elongation. In addition, as moisture is lost, the frictional resistance between the blank and the inner wall of the plaster mold also gradually increases. Due to the above factors, the blank is difficult to distribute evenly during the molding process and is very likely to accumulate in the bottom area of ​​the plaster mold, resulting in the bottom of the blank being too thick and the upper side wall being too thin, which affects the dimensional accuracy of the product. To address the aforementioned problems, this invention proposes an automatic ceramic forming machine that assists in the upward movement of the blank during the ceramic roll forming process, and ensures that the blank is evenly distributed during the upward movement. Summary of the Invention

[0004] The present invention addresses the problem of overly simplistic solutions in existing technologies by providing a significantly different solution. Specifically, the present invention aims to provide an automatic ceramic forming machine to solve the problem mentioned in the background that the existing blanks are difficult to distribute evenly during the forming process, resulting in an excessively thick bottom and a thin upper sidewall.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic ceramic molding machine, comprising an operating platform, a plaster mold rotatably connected to the upper surface of the operating platform, an upper mold core provided in the inner cavity of the plaster mold, and two gantry axes mounted on the upper surface of the operating platform for controlling the movement of the upper mold core. A slide block is slidably connected to the two gantry axes, and a fixing frame for connecting the upper mold core is mounted on the surface of the slide block. A double-layered disc is provided in the inner cavity of the fixing frame, and the double-layered disc can drive the upper mold core to gradually migrate from the edge area to the center area of ​​the plaster mold during the ceramic body molding process. A telescopic rotating rod is installed on one side of the double-layer disc. One end of the telescopic rotating rod is fixedly connected to the fixed frame. The telescopic rotating rod enables the upper mold core to tilt synchronously during the gradual migration process, so as to drive the blank inside the plaster mold from bottom to top and distribute the material evenly. The inner wall of the upper mold core is provided with a through groove, and a rotating shaft is provided in the through groove. The top of the rotating shaft is equipped with the output shaft of a second motor, and a conical disc is fixedly connected to the bottom of the rotating shaft.

[0006] Preferably, the inner cavity of the fixing frame is provided with a carrier plate and a limiting frame from the inside to the outside. The upper mold core is installed on the carrier plate. Two shafts are fixedly connected to both sides of the carrier plate. The limiting frame is rotatably connected to the carrier plate through the two shafts.

[0007] Preferably, the double-layer disk includes an upper disk and a lower disk, the upper disk is provided with a first sliding groove, the lower disk is provided with a second sliding groove, and a drive rod is slidably connected in the second sliding groove.

[0008] Preferably, a lead screw is rotatably connected to the inner wall of the first slide groove, the upper half of the drive rod has a square cross-section and the lower half of the drive rod has a circular cross-section, and the upper half of the drive rod slides along the first slide groove and is threadedly connected to the lead screw, and the output shaft of the first motor is installed on the upper surface of the upper disk.

[0009] Preferably, the telescopic rotating rod is divided into an inner fixed rod and an outer sleeve. One end of the inner fixed rod is fixedly connected to the back of the limiting frame, and the other end of the inner fixed rod is rotatably connected to the lower disc.

[0010] Preferably, the inner fixing rod has a protrusion fixedly connected to its side curved surface, and the outer sleeve has a guide groove on its side curved surface that allows the protrusion to slide. The inner wall of the fixing frame is provided with two linear tracks corresponding to the position of the lower disc. Two sliders that slide along the linear tracks are fixedly connected to both sides of the lower disc. One end of each linear track is fixedly connected to the outer sleeve through two connecting rods.

[0011] Preferably, the fixing frame includes a crossbar, and two side bars are slidably connected to both ends of the crossbar, with two inclined grooves respectively formed at the ends of the two side bars.

[0012] Preferably, two circular blocks are fixedly connected to the ends of the two shafts, and two levers are fixedly connected to the surfaces of the two circular blocks, with the two levers passing through the two inclined slots respectively.

[0013] Preferably, the surface of the carrier plate is provided with a large gear and a small gear respectively. The inner wall of the large gear is equipped with the output shaft of a third motor. The inner wall of the small gear is fixedly connected to the upper end of the upper mold core. The upper mold core and the carrier plate are connected by bearings in a rotating manner.

[0014] Compared with the prior art, the beneficial effects of the present invention are: By combining a double-layer disc with a telescopic rotating rod, the shape of the upper mold core is automatically changed. During the roll forming stage, the upper disc rotates with the drive rod, and the lower disc moves forward along a straight track under the drive rod. The protrusion on the inner fixed rod slides along the guide groove, causing the limit frame and the carrier plate to move forward and rotate to a certain angle. With the help of the levers on both sides sliding down the inclined groove, the upper mold core is driven to rotate independently. During the roll forming stage, the upper mold core is tilted in a compound manner, which increases the gap between the upper mold core and the ceramic mold, reduces the friction between the blank and the plaster mold, and at the same time, the angle tilt occurs, so that the upper mold core gradually forms an upward tilt angle during the rotation. During the roll forming process, the blank can be effectively driven from bottom to top, avoiding excessive accumulation of blank at the bottom and improving the uniformity of the material distribution. Meanwhile, during the edge-finishing stage, the upper disc and drive rod drive the entire inner fixed rod to reset, and at the same time drive the lever to slide up and reset along the inclined groove. During the reset process, the center area of ​​the upper mold core plaster mold moves to the edge area. During the migration, the gap with the plaster mold decreases again, further compacting the molded blank and squeezing the excess blank upward to achieve the finishing of the top of the blank. This ensures that the edges of the molded ceramic blank are neat and the thickness is uniform. The upper mold core switches to different postures at different stages to achieve seamless connection between rolling and compacting the edge, which not only completes the secondary compaction of the molded blank, but also ensures that the finished blank is of uniform thickness. In addition, a lead screw is added to dynamically adjust the position of the drive rod. The closer the drive rod is to the center, the shorter the path of the lower disc reciprocating each time the upper disc rotates, which is suitable for thin blanks. Conversely, the further the drive rod moves outward, the longer the path of the lower disc reciprocating, which is suitable for thick blanks. Operators can flexibly adjust the position of the drive rod according to the actual thickness of the ceramic blank to be formed, thereby precisely controlling the reciprocating path of the lower disc and improving the equipment's adaptability to ceramic blanks of different thicknesses and the forming effect. Furthermore, a rotating shaft is installed inside the upper mold core, with a conical disk fixedly connected to the bottom of the rotating shaft. The rotating shaft, conical disk, and plaster mold are initially set as coaxial. In subsequent processes, the conical disk and the side rods on both sides of the fixed frame rotate synchronously and shift, while the center position remains unchanged, always pointing towards the center area of ​​the plaster mold. The second motor drives the rotating shaft and the independent conical disk to rotate at high speed. The high-speed rotating conical disk performs secondary extrusion and radial diffusion on the central enrichment area, making up for the insufficient material supply on the side wall. The whole process forms a two-stage feeding mode. Combined with the rotation of the upper mold core, it significantly improves the upward extension ability of the blank, further improves the uniformity of blank distribution, and improves the quality and efficiency of ceramic molding. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 This is a cross-sectional view of the plaster mold and the upper mold core of the present invention.

[0017] Figure 3 This is a schematic diagram of the connection structure between the telescopic rotating rod and the limiting frame of the present invention.

[0018] Figure 4 This is a schematic diagram of the double-layer disc and telescopic rotating rod structure of the present invention.

[0019] Figure 5 This is a cross-sectional view of the double-layered disc and telescopic rotating rod of the present invention.

[0020] Figure 6 This is a schematic diagram of the connection structure of the fixing frame, shaft and limiting frame of the present invention.

[0021] Figure 7 This is a schematic diagram of the disassembled structure of the fixing frame, shaft, and limiting frame of the present invention.

[0022] Figure 8 This is a schematic diagram showing the angle change state of the upper mold core in this invention.

[0023] In the diagram: 1. Operating platform; 2. Plaster mold; 3. Upper mold core; 301. Rotating shaft; 302. Second motor; 303. Conical disc; 4. Two-axis gantry; 5. Slide block; 6. Fixing frame; 601. Crossbar; 602. Side bar; 603. Inclined groove; 604. Linear track; 7. Carrier plate; 701. Large gear; 702. Small gear; 703. Third motor; 8. Limiting frame; 9. Shaft; 10. Circular block; 11. Lever; 12. Upper disc; 13. Lower disc; 14. First slide groove; 15. Second slide groove; 16. Drive rod; 17. First motor; 18. Inner fixing rod; 19. Outer sleeve; 20. Protrusion; 21. Guide groove; 22. Lead screw. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figures 1 to 8 The present invention provides a technical solution: an automatic ceramic molding machine, including an operating platform 1, a plaster mold 2 rotatably connected to the upper surface of the operating platform 1, an upper mold core 3 provided in the inner cavity of the plaster mold 2, and a two-axis gantry 4 installed on the upper surface of the operating platform 1 for controlling the movement of the upper mold core 3. A slide block 5 is slidably connected to the two-axis gantry 4, and a fixing frame 6 for connecting the upper mold core 3 is installed on the surface of the slide block 5. The inner cavity of the fixing frame 6 is provided with a double-layer disc, which can drive the upper mold core 3 to gradually migrate from the edge area of ​​the plaster mold 2 to the center area during the ceramic body molding process. A telescopic rotating rod is installed on one side of the double-layer disc. One end of the telescopic rotating rod is fixedly connected to the fixed frame 6. The telescopic rotating rod can make the upper mold core 3 tilt at the same angle during the gradual migration process, so as to drive the blank inside the plaster mold 2 from bottom to top and distribute the material evenly. The inner wall of the upper mold core 3 is provided with a through groove, and a rotating shaft 301 is provided in the through groove. The output shaft of the second motor 302 is installed on the top of the rotating shaft 301, and a conical disk 303 is fixedly connected to the bottom of the rotating shaft 301. By combining the double-layer disc with the telescopic rotating rod, the blank can be layered during the blank forming process. During the material distribution process, the upper mold core 3 gradually moves from the edge area of ​​the plaster mold 2 to the center area, increasing the gap and reducing the friction between the blank and the plaster mold 2. At the same time, the angle tilts, so that the upper mold core 3 gradually forms an upward tilt during the rotation process. During the rolling process, it can effectively drive the blank from bottom to top, avoid excessive accumulation of blank at the bottom, and improve the uniformity of material distribution. Furthermore, a rotating shaft 301 is provided inside the upper mold core 3. The bottom of the rotating shaft 301 is fixedly connected to a conical disk 303, and the top of the rotating shaft 301 is fixedly installed with the output shaft of the second motor 302. The rotating shaft 301, the conical disk 303, and the plaster mold 2 are initially set as coaxial, and subsequently always point to the center area of ​​the plaster mold 2. The lower surface of the conical disk 303 is provided with an inclined protrusion. The second motor 302 drives the rotating shaft 301 and the conical disk to rotate at high speed. The high-speed rotating conical disk 303 performs secondary extrusion and radial diffusion on the central enrichment area, making up for the insufficient material supply on the side wall. The whole forms a two-stage feeding mode, and the rotation direction of the conical disk 303 is consistent with the rotation direction of the plaster mold 2. The centrifugal force of the two is superimposed, and with the rotation of the upper mold core 3, the ability of the blank to extend upward is significantly improved, further improving the uniformity of the blank distribution and improving the quality and efficiency of ceramic molding.

[0026] In this embodiment, as Figure 1 and Figure 2 As shown, the inner cavity of the fixed frame 6 is provided with a carrier plate 7 and a limiting frame 8 from the inside to the outside. The upper mold core 3 is installed on the carrier plate 7. Two shafts 9 are fixedly connected to both sides of the carrier plate 7. The limiting frame 8 is connected to the carrier plate 7 by the two shafts 9 in a rotating manner. It should be noted that the fixed frame 6 serves as a support component, and the inner cavity is provided with a carrier plate 7 and a limiting frame 8 from the inside to the outside. The carrier plate 7 is used to support the upper mold core 3, and two shafts 9 are fixedly connected on both sides. The carrier plate 7 and the limiting frame 8 are rotatably connected through the shafts 9. The fixed frame 6 is fixedly connected to the slide ram 5. The slide ram 5 slides along the two-axis gantry 4, which can further drive the entire carrier plate 7, the limiting frame 8 and the upper mold core 3 to move synchronously. Specifically, during the roll forming process, the blank is first placed into the plaster mold 2. The two-axis gantry 4 is operated to move the slide block 5, the fixed frame 6, the carrier plate 7, the limiting frame 8, and the upper mold core 3 to a suitable position, so that the upper mold core 3 is aligned with the edge of the plaster mold 2 and vertically embedded into the plaster mold 2. The entire conical disk 303 is simultaneously embedded into the plaster mold 2, and the conical disk 303 and the plaster mold 2 are in a coaxial state, ensuring that in the initial stage, the upper mold core 3 is at the edge of the plaster mold 2, while the conical disk 303 is in the central area of ​​the plaster mold 2. The conical disk 303 and the upper mold core 3 are in a misaligned state before. Next, the plaster mold 2 is started to rotate, and the upper mold core 3 and the conical disc 303 are started at the same time. The plaster mold 2 and the conical disc 303 rotate clockwise, and the upper mold core 3 also rotates clockwise. There is a speed difference between the upper mold core 3 and the plaster mold 2. The roll forming operation begins. Then, the upper mold core 3 can be driven to adjust its position independently through the cooperation of the double-layer disc and the telescopic rotating rod.

[0027] In this embodiment, as Figure 3 , Figure 4and Figure 5 As shown, the double-layer disk includes an upper disk 12 and a lower disk 13. The upper disk 12 is provided with a first sliding groove 14, and the lower disk 13 is provided with a second sliding groove 15. A drive rod 16 is slidably connected in the second sliding groove 15.

[0028] The inner wall of the first slide groove 14 is rotatably connected to a lead screw 22. The upper half of the drive rod 16 has a square cross section, and the lower half of the drive rod 16 has a circular cross section. The upper half of the drive rod 16 slides along the first slide groove 14 and is threadedly connected to the lead screw 22. The upper surface of the upper disk 12 is equipped with the output shaft of the first motor 17.

[0029] The telescopic rotating rod is divided into an inner fixed rod 18 and an outer sleeve 19. One end of the inner fixed rod 18 is fixedly connected to the back of the limiting frame 8, and the other end of the inner fixed rod 18 is rotatably connected to the lower disc 13.

[0030] The inner fixed rod 18 has a protrusion 20 fixedly connected to its side curved surface, and the outer sleeve 19 has a guide groove 21 on its side curved surface for the protrusion 20 to slide. The inner wall of the fixing frame 6 is provided with two linear tracks 604 corresponding to the position of the lower disc 13. Two sliders that slide along the linear tracks 604 are fixedly connected to both sides of the lower disc 13. One end of the two linear tracks 604 is fixedly connected to the outer sleeve 19 through two connecting rods.

[0031] It should be noted that the upper disk 12 and the lower disk 13 of the double-layer disk cooperate with each other and are connected by a drive rod 16. The upper half of the drive rod 16 slides in the first groove 14 of the upper disk 12, while the lower half slides in the second groove 15 of the lower disk 13. The center area of ​​the upper surface of the upper disk 12 is fixedly installed with the output shaft of the first motor 17. The first motor 17 is a geared motor, which drives the upper disk 12 to rotate slowly and uniformly, thereby causing the drive rod 16 to make a circular motion with the central axis of the upper disk 12 as the center. As the drive rod 16 moves in circles, its lower half will slide further along the second groove 15 of the lower disk 13. Since two sliders are fixedly connected to both sides of the lower disk 13, and these two sliders slide along the linear track 604 respectively, the lower disk 13 will reciprocate along the linear track 604 during the process of the drive rod 16 moving in circles. Meanwhile, the reciprocating motion of the lower disc 13 will also drive the inner fixing rod 18 to slide inside the outer sleeve 19. One end of the inner fixing rod 18 is fixedly connected to the limiting frame 8, and the other end of the inner fixing rod 18 is rotatably connected to the lower disc 13. When the inner fixing rod 18 moves forward, it drives the limiting frame 8 and the carrier plate 7 to move forward and can rotate independently without affecting the vertical movement of the upper turntable. Furthermore, the protrusion 20 on the inner fixing rod 18 slides within the guide groove 21 of the outer sleeve 19, causing the entire limiting frame 8 and the carrier plate 7 to rotate during the forward and backward displacement of the inner fixing rod 18, thereby achieving the angular tilting of the upper mold core 3 during the migration process; the specific process is mainly divided into the following two stages: In the roll forming stage: As the first motor 17 starts, it drives the upper turntable to rotate. The drive rod 16 starts to circle around the central axis of the upper disc 12. At this time, the lower disc 13 moves forward along the straight track 604 under the drive of the drive rod 16. The inner fixing rod 18 extends forward from the outer sleeve 19 as the lower disc 13 moves, and the limiting frame 8 and the entire carrier plate 7 move forward. At this time, the protrusion 20 on the inner fixing rod 18 slides along the guide groove 21, causing the limiting frame 8 and the carrier plate 7 to move forward and rotate to a certain angle. This causes the upper mold core 3 to tilt forward synchronously. In the roll forming stage, the upper mold core 3 moves from the edge area to the center while rotating. During the process of the blank layer by layer accumulation, the gap between the upper mold core 3 and the plaster mold 2 gradually increases. The tilted state generates an upward thrust, which drives the blank accumulated at the bottom upward, so that the blank moves from the bottom to the upper side wall, reducing the accumulation of blank at the bottom. Meanwhile, the conical disk 303 rotates at high speed under the drive of the second motor 302, and performs secondary extrusion and radial diffusion on the blank in the central area of ​​the plaster mold 2. Because the conical disk 303 and the plaster mold 2 rotate in the same direction, the centrifugal forces of the two are superimposed, which helps the blank migrate towards the side wall. Combined with the rotation of the mold core 3, the ability of the blank to extend upward is significantly improved, making up for the problem of insufficient material supply to the side wall and further improving the uniformity of blank distribution. During the edge finishing stage, as the first motor 17 continues to operate, it drives the upper disc 12 to rotate continuously, gradually pulling the drive rod 16 and the inner fixing rod 18 back to their original positions. During the reset process, the inner fixing rod 18 drives the limiting frame 8 and the carrier plate 7 to move backward. At the same time, the protrusion 20 on the inner fixing rod 18 slides in the opposite direction along the guide groove 21, so that the limiting frame 8 and the carrier plate 7 rotate in the opposite direction at a certain angle while moving backward, and migrate from the center area of ​​the plaster mold 2 to the edge area. During the migration, the gap with the plaster mold 2 is reduced again, further compacting the molded blank and squeezing the excess blank upward. With the help of the outer limiting fixing frame 6 at the bottom of the slide block 5, the top of the blank is finished, ensuring that the edges of the molded ceramic blank are neat and the thickness is uniform. Furthermore, the drive rod 16 and the lead screw 22 are connected by a threaded connection. The first motor 17 drives the upper disk 12 to rotate until the first slide groove 14 and the second slide groove 15 are parallel. At this time, the lead screw 22 can be rotated to drive the drive rod 16 to slide along the first slide groove 14, changing the radial position of the drive rod 16 on the upper disk 12. The closer the drive rod 16 is to the center, the shorter the reciprocating path of the lower disk 13 is for each rotation of the upper disk 12, which is suitable for thin blanks. Conversely, the further the drive rod 16 moves to the outside, the longer the reciprocating path of the lower disk 13 is, which is suitable for thick blanks. The operator can flexibly adjust the position of the drive rod 16 according to the actual thickness of the ceramic blank to be formed, thereby accurately controlling the reciprocating path of the lower disk 13, improving the adaptability of the equipment to ceramic blanks of different thicknesses and the forming effect.

[0032] In this embodiment, as Figure 6 , Figure 7 and Figure 8 As shown, the fixing frame 6 includes a crossbar 601, and two side bars 602 are slidably connected to both ends of the crossbar 601. Two inclined grooves 603 are respectively opened at the ends of the two side bars 602.

[0033] Two circular blocks 10 are fixedly connected to the ends of the two shafts 9 respectively, and two levers 11 are fixedly connected to the surfaces of the two circular blocks 10 respectively, and the two levers 11 pass through the two inclined slots 603 respectively. It should be noted that the side rods 602 at both ends of the crossbar 601 are slidably connected to the crossbar 601. The inclined groove 603 at the end of the side rod 602 cooperates with the lever 11 on the circular block 10 at the end of the shaft 9. When the carrier plate 7 moves back and forth and tilts at an angle under the drive of the double-layer disc and the telescopic rotating rod, the two crossbars 601 rotate and displace synchronously with the carrier plate 7. Two arc-shaped grooves are provided at both ends of the crossbar 601 to accommodate a certain displacement of the side rod 602. Furthermore, since the side rod 602 and the cross rod 601 are slidably connected, the side rod 602 can only rotate and move, but cannot move forward or backward. As the limit frame 8, the carrier plate 7 and the lever 11 slide forward synchronously, the levers 11 on both sides will slide down along the inclined groove 603. During the roll forming stage: the carrier plate 7 moves forward, the inner fixing rod 18 moves forward along the outer sleeve 19, and the entire carrier plate 7 and the upper mold core 3 deflect counterclockwise inward. At the same time, the lever 11 slides down along the inclined groove 603. Since the lever 11 is at the edge of the circular block 10, the lever 11 slides down, causing the circular block 10 and the shaft 9 to rotate counterclockwise around the central axis of the shaft 9. At this time, the limiting frame 8 maintains a constant angle, and the entire upper mold core 3 rotates synchronously with the shafts 9 on both sides. The upper mold core 3 deflects backward as a whole. With the guidance of the telescopic rotating rod, the upper mold core 3 as a whole forms a specific tilt angle. When the upper mold core 3 rotates at high speed, this specific angle assists the blank to move upward. Furthermore, as the side rod 602 rotates and displaces, the second motor 302 drives the rotating shaft 301 and the conical disk 303 to shift left and right synchronously. Regardless of the angle switched, the conical disk 303 always points to the center area of ​​the plaster mold 2. Next, as the forward movement path of the carrier plate 7 and the upper mold core 3 towards the center area increases, the overall tilt angle becomes larger, further optimizing the material distribution effect of the blank. When entering the edge finishing stage, the carrier plate 7 moves backward, the inner fixing rod 18 slides backward along the outer sleeve 19, the entire carrier plate 7 and the upper mold core 3 deflect outward clockwise, and at the same time the lever 11 slides in the opposite direction along the inclined groove 603, the entire upper mold core 3 is reset, and the formed blank is compacted. With the help of the outer limiting fixing frame 6 at the bottom of the slide block 5, the edge finishing of the blank is better achieved, ensuring that the edge of the formed ceramic blank is neater and the thickness is more uniform. The upper mold core 3 switches to different postures at different stages to achieve seamless connection between rolling the fabric and edge compaction. In the rolling stage, the uniformity of the fabric is enhanced by the composite tilt posture. In the edge compaction stage, the upper mold core 3 is reset by the rearward movement of the carrier plate 7 and the contraction of the inner fixing rod 18. The gap between the upper mold core 3 and the plaster mold 2 is reduced again, which not only completes the secondary compaction of the molded blank, but also ensures that the thickness of the molded blank is uniform.

[0034] In this embodiment, as Figure 2 As shown, the surface of the carrier plate 7 is provided with a large gear 701 and a small gear 702 respectively. The inner wall of the large gear 701 is equipped with the output shaft of the third motor 703. The inner wall of the small gear 702 is fixedly connected to the upper end of the upper mold core 3. The upper mold core 3 and the carrier plate 7 are connected by bearings to form a rotating connection. It should be noted that the large gear 701 and small gear 702 on the surface of the carrier plate 7 cooperate with each other. The large gear 701 is driven to rotate by the third motor 703, and a gear transmission relationship is formed between the large gear 701 and the small gear 702. Since the small gear 702 is fixedly connected to the upper end of the upper mold core 3, and the upper mold core 3 is rotatably connected to the carrier plate 7 through a bearing, when the third motor 703 starts and drives the large gear 701 to rotate, the small gear 702 will rotate synchronously, thereby driving the upper mold core 3 to perform independent rotational motion on the carrier plate 7. This design allows the rotation of the upper mold core 3 to be independent of other movements of the carrier plate 7. During the process of the double-layer disc and telescopic rotating rod driving the carrier plate 7 to move back and forth and tilt at an angle, the upper mold core 3 can still rotate at the set speed, ensuring the stability and accuracy of the rotational motion of the upper mold core 3 in the roll forming process.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic ceramic molding machine, comprising an operating platform (1), wherein a plaster mold (2) is rotatably connected to the upper surface of the operating platform (1), and an upper mold core (3) is provided in the inner cavity of the plaster mold (2), characterized in that: It also includes a two-axis gantry (4) installed on the upper surface of the operating platform (1) for controlling the movement of the upper mold core (3). A slide block (5) is slidably connected on the two-axis gantry (4). A fixing frame (6) for connecting the upper mold core (3) is installed on the surface of the slide block (5). The inner cavity of the fixing frame (6) is provided with a double-layer disc. The double-layer disc can drive the upper mold core (3) to gradually move from the edge area of ​​the plaster mold (2) to the center area during the ceramic body forming process. A telescopic rotating rod is installed on one side of the double-layer disc. One end of the telescopic rotating rod is fixedly connected to the fixed frame (6). The telescopic rotating rod enables the upper mold core (3) to tilt synchronously during the gradual migration process, so as to drive the blank inside the plaster mold (2) from bottom to top and distribute the material evenly. The inner wall of the upper mold core (3) is provided with a through groove, and a rotating shaft (301) is provided in the through groove. The top of the rotating shaft (301) is equipped with the output shaft of the second motor (302), and the bottom of the rotating shaft (301) is fixedly connected with a conical disk (303).

2. The automatic ceramic forming machine according to claim 1, characterized in that: The inner cavity of the fixed frame (6) is provided with a carrier plate (7) and a limiting frame (8) from the inside to the outside. The upper mold core (3) is installed on the carrier plate (7). Two shafts (9) are fixedly connected to both sides of the carrier plate (7). The limiting frame (8) is connected to the carrier plate (7) by the two shafts (9) in a rotating manner.

3. The automatic ceramic forming machine according to claim 2, characterized in that: The double-layer disk includes an upper disk (12) and a lower disk (13). The upper disk (12) is provided with a first sliding groove (14), and the lower disk (13) is provided with a second sliding groove (15). A drive rod (16) is slidably connected in the second sliding groove (15).

4. The automatic ceramic forming machine according to claim 3, characterized in that: The inner wall of the first slide groove (14) is rotatably connected to a lead screw (22). The upper half of the drive rod (16) has a square cross section, and the lower half of the drive rod (16) has a circular cross section. The upper half of the drive rod (16) slides along the first slide groove (14) and is threadedly connected to the lead screw (22). The upper surface of the upper disk (12) is equipped with the output shaft of the first motor (17).

5. The automatic ceramic forming machine according to claim 3, characterized in that: The telescopic rotating rod is divided into an inner fixed rod (18) and an outer sleeve (19). One end of the inner fixed rod (18) is fixedly connected to the back of the limiting frame (8), and the other end of the inner fixed rod (18) is rotatably connected to the lower disc (13).

6. The automatic ceramic forming machine according to claim 5, characterized in that: The inner fixing rod (18) has a protrusion (20) fixedly connected to its side curved surface, and the outer sleeve (19) has a guide groove (21) on its side curved surface for the protrusion (20) to slide. The inner wall of the fixing frame (6) is provided with two linear tracks (604) corresponding to the position of the lower disc (13). Two sliders that slide along the linear tracks (604) are fixedly connected to both sides of the lower disc (13). One end of the two linear tracks (604) is fixedly connected to the outer sleeve (19) through two connecting rods.

7. The automatic ceramic forming machine according to claim 1, characterized in that: The fixing frame (6) includes a crossbar (601), and two side bars (602) are slidably connected to both ends of the crossbar (601). Two inclined grooves (603) are respectively opened at the ends of the two side bars (602).

8. The automatic ceramic forming machine according to claim 2, characterized in that: Two circular blocks (10) are fixedly connected to the ends of the two shafts (9), and two levers (11) are fixedly connected to the surfaces of the two circular blocks (10), and the two levers (11) pass through the two inclined slots (603).

9. The automatic ceramic forming machine according to claim 2, characterized in that: The surface of the carrier plate (7) is provided with a large gear (701) and a small gear (702). The inner wall of the large gear (701) is equipped with the output shaft of the third motor (703). The inner wall of the small gear (702) is fixedly connected to the upper end of the upper mold core (3). The upper mold core (3) and the carrier plate (7) are connected by bearings in a rotating manner.

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