A continuous rotary discharge ceramic green body roll forming apparatus

Abstract

The application discloses a ceramic body roll forming device with continuous rotation discharging, relates to the technical field of ceramic body roll forming, and specifically comprises a roll frame, a horizontal driving table and a vertical driving table, the top of the roll frame is provided with the horizontal driving table, the top of the horizontal driving table is provided with the vertical driving table, and the top of the vertical driving table is slidably connected with a sliding base plate; the 120-degree intermittent rotation design of the rotating disc is adopted to realize the cyclic switching of three workstations of blank adding, roll forming and discharging, eliminate the idle period of stopping to take blanks in the traditional process, and compared with the prior art, the ceramic body roll forming efficiency is improved by 20%, uninterrupted continuous production is realized, and the device is different from the traditional down-pressing contact type roll forming, adopts a mechanical linkage mechanism, a cam, a U-shaped lifting rod and a toothed plate are used for automatically controlling the lifting and rotation of a female die, a driving assembly is used for driving a male die to synchronously rotate, and the roll forming precision is ensured.

Description

Technical Field

[0001] This invention relates to the field of ceramic blank rolling forming technology, specifically to a ceramic blank rolling forming device with continuous rotating discharge. Background Technology

[0002] Ceramic body roll forming is a common ceramic forming process, mainly used to produce round or axially symmetrical ceramic products (such as bowls, plates, cups, jars, etc.). The core technology is to use the synergistic effect of rotating molds and rolling heads to uniformly press clay into the required body shape.

[0003] The rotary mold works in conjunction with the rolling head. The mold (female mold) is usually a plaster mold or metal mold with the shape of the target blank's inner cavity, fixed on a rotary worktable. The rolling head (male mold) is a rolling tool that matches the shape of the mold. It uses pressure to evenly extend the clay to the inner wall of the mold to form a blank. Then, by rotating the mold and the rolling head synchronously (in the same direction or in opposite directions), the clay is evenly distributed using centrifugal force and mechanical pressure. The clay is placed inside the mold, and finally a blank that conforms to the inner cavity of the mold is formed. Then, it is demolded and dried.

[0004] The design of the rolling head system is usually made of wear-resistant metal (such as stainless steel) or covered with elastic material (such as rubber). The downward pressure of the rolling head is controlled by a hydraulic or pneumatic system. For example, the patent CN208163923U, "A new type of rolling head for rolling ceramic blanks", drives the entire slide to rotate by the lower roller upper and lower cams and the pull-back cam, and presses the upper roller main shaft with the upper roller head into the top mold plate to complete the rolling of the blank. However, for the blank unloading work after forming, the entire machine head usually needs to be reset and the entire formed blank needs to be taken out. At this time, the rolling head is in a stopped idle state, which leads to a reduction in ceramic forming efficiency. To address this, we propose a continuously rotating discharge ceramic blank rolling forming device. Summary of the Invention

[0005] The purpose of this invention is to provide a continuously rotating ceramic blank roll forming device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a continuously rotating ceramic blank roll forming device, comprising a roll forming frame, a horizontal drive platform and a vertical drive platform, wherein the horizontal drive platform is mounted on the top of the roll forming frame and the vertical drive platform is mounted on the top of the horizontal drive platform;

[0007] The top of the vertical drive platform is slidably connected to a sliding base plate. The center of the sliding base plate is movably connected to a rotating shaft through a bearing. A turntable is fixedly connected to the end of the rotating shaft. Mold storage cylinders are evenly installed on the top of the turntable. A female mold is slidably connected inside the mold storage cylinder.

[0008] A support column is fixedly connected to the top of the sliding base plate and inside the rotating shaft. One end of the support column passes through the turntable and is fixedly connected to a positioning plate. A clamping cover is fixed to the top of the side wall of the rolling frame by bolts. A driving assembly is installed inside the clamping cover. A male mold is installed on the output end of the driving assembly. A cylinder is fixedly connected to the other side of the rolling frame. An alternating suction cup assembly is fixedly connected to the end of the cylinder.

[0009] Furthermore, a motor is fixed to the bottom of the sliding base plate by bolts, and a second rotating shaft is movably connected to the top of the sliding base plate. A gear is installed on the output end of the motor and meshes with a gear sleeved on the second rotating shaft. An arc-shaped chuck is sleeved on the second rotating shaft, and a cam is sleeved on the other side of the second rotating shaft.

[0010] Furthermore, a hemispherical disc shell is fitted and fixed on the top of the sliding base plate and on the rotating shaft. Shallow arc-shaped cuts are evenly opened on the hemispherical disc shell, and deep arc-shaped cuts are also opened between adjacent shallow arc-shaped cuts on the hemispherical disc shell. The arc-shaped block on the arc-shaped chuck is correspondingly arranged with the shallow arc-shaped cuts inside the hemispherical disc shell, and the hook block on the arc-shaped chuck is correspondingly arranged with the deep arc-shaped cuts inside the hemispherical disc shell. A U-shaped rocker arm is rotatably connected to the top of the sliding base plate and on the cam side.

[0011] Furthermore, a positioning frame is fixedly connected to the top of the sliding base plate, and toothed plate one and toothed plate two are slidably connected in the grooves on both sides of the positioning frame. A drive tooth is movably connected in the positioning frame, and the toothed plate one and toothed plate two are meshed with the two sides of the drive tooth on opposite sides.

[0012] Furthermore, a limiting groove is formed on the sliding base plate and located at the bottom of the turntable, and a drive slot is movably connected in the limiting groove and located on the sliding base plate.

[0013] Furthermore, an abutment sleeve is movably connected inside the mold storage cylinder on the turntable and located at the bottom of the female mold. The female mold is engaged with the abutment sleeve. The abutment sleeve passes through the mold storage cylinder and is slidably connected to a rotating rod. A convex plate is fixedly connected to the end of the rotating rod, and the bottom protrusion of the convex plate is engaged with a limiting groove.

[0014] The continuous rotary discharge ceramic blank rolling forming method is as follows:

[0015] Passive contact molding involves first fixing the position of the male mold at the end of the drive assembly on the rolling frame, controlling the movement of the sliding base plate on the horizontal drive table and the vertical drive table so that the rolling area on the positioning plate corresponds to the male mold, and then fixing and installing the female mold in the mold storage cylinder on the turntable.

[0016] As the ceramic blank is cut and placed in the female mold, the mold cylinder containing the blank is moved to the bottom of the rolling area on the positioning plate side by rotating the shaft 120°. As the arc chuck continues to rotate, the cam at the two ends of the shaft presses down the U-shaped rocker arm, causing the toothed plate in the positioning frame on the other side to move down, pushing the abutment sleeves on both sides of the toothed plate to move up, and pushing the abutment sleeves in the mold cylinder upward, causing the female mold containing the ceramic blank to contact the male mold at the end of the drive assembly. The drive groove plate rotates, driving the cam and the abutment sleeve to rotate, realizing the rotation of the female mold. The drive assembly drives the male mold to rotate, completing the rolling of the ceramic blank.

[0017] After the rolling process is completed, the turntable rotates 120° again to move the molded blank to the unloading station. The cylinder pushes the alternating suction cup assembly to contact the molded blank, thus completing the separation of the molded blank from the female mold.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. The continuous production of ceramic blanks by rolling in this invention significantly improves efficiency. Through the 120° intermittent rotation design of the turntable, the three stations of blank addition, rolling forming, and blank unloading are cyclically switched, eliminating the downtime for blank removal in traditional processes. Compared with existing technologies, the efficiency of ceramic blank rolling forming is increased by 20%, achieving uninterrupted continuous production. At the same time, unlike the traditional downward contact rolling forming, a mechanical linkage mechanism is adopted. The cam, U-shaped rocker arm, and toothed plate automatically control the lifting and rotation of the female mold, and the drive component drives the male mold to rotate synchronously, ensuring rolling accuracy while further improving forming efficiency. The blank unloading station automatically picks up the formed blank through the alternating suction cup component driven by the cylinder. No manual operation is required throughout the process, reducing labor intensity.

[0020] 2. In this invention, the quality of billet forming is improved and the deformation of the billet is avoided. The linkage design of the female mold and the abutment sleeve, combined with the precise driving of the convex plate by the drive groove, ensures that the rotation speed of the female mold and the male mold are matched, avoiding deformation or eccentricity of the billet due to the difference in rotation speed. The scraper set on the side of the positioning plate can simultaneously remove edge waste, further ensuring the surface smoothness of the billet. At the same time, the horizontal drive table and the vertical drive table work together to control the position of the sliding plate, realizing the rapid alignment of the mold and the rolling head. The drive component can adjust the angle and pressure of the male mold to adapt to the production needs of ceramic products of different specifications, and has strong expandability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the ceramic blank rolling forming device with continuous rotating discharge according to the present invention.

[0022] Figure 2 This is a schematic diagram of the main structure of the ceramic blank rolling forming device with continuous rotary discharge according to the present invention.

[0023] Figure 3This is a schematic diagram of the contact structure between the bottom convex disk of the mold cylinder and the upper limit groove of the sliding base plate of the present invention;

[0024] Figure 4 This is a schematic diagram of the connection structure between the upper hemispherical disc shell and the arc-shaped chuck of the rotating shaft of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure in which the bottom protrusion of the cam disc abuts against the drive slot of the present invention;

[0026] Figure 6 This is a schematic diagram of the cross-sectional structure of the mold cylinder of the present invention;

[0027] Figure 7 This is a diagram showing the processing station for the ceramic blank at the top of the positioning plate of the present invention.

[0028] In the diagram: 1. Rolling frame; 2. Horizontal drive stage; 3. Vertical drive stage; 4. Sliding base plate; 5. Limiting groove; 6. Drive groove plate; 7. Rotating shaft one; 8. Turntable; 9. Mold storage cylinder; 10. Female mold; 11. Abutment sleeve; 12. Rotating rod; 13. convex plate; 14. Positioning plate; 15. Hemispherical disc shell; 16. Rotating shaft two; 17. Cam; 18. Arc-shaped chuck; 19. U-shaped rocker arm; 20. Positioning frame; 21. Drive gear; 22. Gear plate one; 23. Gear plate two; 24. Clamping cover; 25. Drive assembly; 26. Male mold; 27. Cylinder; 28. Alternating suction cup assembly. Detailed Implementation

[0029] 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.

[0030] Please see Figure 1-7 The present invention provides a technical solution:

[0031] Regarding the rolling forming of ceramic blanks, this invention adopts a passive upward pushing method, in which the mold with blank is actively pushed upward to contact the rolling head that is fixed in position, and automatically changes position after the blank is formed. Compared with the method of the rolling head pressing down to contact the blank, the rolling forming efficiency of ceramic blanks is increased by 20%.

[0032] like Figure 1 As shown, a horizontal drive table 2 and a vertical drive table 3 are installed on the rolling frame 1, while a sliding base plate 4 is installed on the vertical drive table 3. The position of the entire sliding base plate 4 on the rolling frame 1 is controlled by the movement of the vertical drive table 3. The specific position adjustment of the sliding base plate 4 follows the conventional cutting machine tool movement principle and the specific coordinates are set.

[0033] The top of the sliding base plate 4 is provided with two plates, namely the turntable 8 and the positioning plate 14. The turntable 8 is driven to rotate by the rotating shaft 7. The rotating shaft 7 is hollow and extends a support column to connect the top positioning plate 14. That is, the turntable 8 can rotate while the entire positioning plate 14 remains stationary.

[0034] The holes on the entire positioning plate 14 are matched with the mold storage cylinder 9 on the bottom turntable 8, such as... Figure 7 As shown, it is divided into a passive rolling zone, a forming and demolding zone, and a blank adding zone. The passive rolling zone corresponds to the male mold 26 installed on the rolling frame 1, while the forming and demolding zone is responsible for taking out the rolled ceramic blank. Finally, the blank adding zone is equipped with a material feeding robot arm, which automatically puts the sheared raw material into the corresponding mold.

[0035] Since the rotating shaft 7 drives the turntable 8 to rotate, and it is necessary to move the corresponding mold storage cylinder 9 to the corresponding area, a dedicated rotary drive mechanism is set up for this purpose, such as... Figure 4 As shown, a hemispherical disc shell 15 is fixedly mounted on the first rotating shaft 7, while a second rotating shaft 16 is provided on the drive side. It is driven by the motor at the bottom of the sliding base plate 4. An arc-shaped chuck 18 is fixedly mounted on the second rotating shaft 16. The arc-shaped chuck 18 is divided into two parts: an arc-shaped block at the top and a hook block at the bottom, which correspond to the entire hemispherical disc shell 15.

[0036] As the entire rotating shaft 16 rotates, the hook block on the arc-shaped chuck 18 contacts the deep arc surface cut on the hemispherical disc shell 15, causing the entire hemispherical disc shell 15 to rotate 120°. Subsequently, the arc-shaped block on the arc-shaped chuck 18 contacts the shallow arc surface cut on the hemispherical disc shell 15, and the rotating shaft 16 rotates on its own without causing the entire rotating shaft 7 to rotate.

[0037] Returning to the entire rotation path of the rotating shaft 7, it first rotates 120° and then remains stationary for a period of time. This allows the top turntable 8 of the rotating shaft 7 to rotate at a fixed angle, moving the mold storage cylinder 9 to the corresponding working area on the positioning plate 14. Similarly, after the blank addition area finishes replenishing the material, the blank is moved to the passive rolling area after a 120° rotation. Meanwhile, the forming material in the passive rolling area is moved to the forming and demolding area. This cycle repeats, improving the overall rolling efficiency of the ceramic blank.

[0038] Because the mold storage cylinder 9 at the top of the turntable 8 is located at the bottom of the positioning plate 14, while the male mold 26 at the end of the drive assembly 25 is located at the top of the positioning plate 14, the female mold 10 inside the mold storage cylinder 9 cannot achieve contact between the blank and the male mold 26. At this time, if... Figure 4 As shown, a cam 17 is also mounted on the rotating shaft 16. A U-shaped rocker arm 19 is rotatably connected to the sliding base plate 4 on the side of the cam 17. The U-shaped rocker arm 19 contacts the cam 17. As the cam 17 rotates, it squeezes and lifts one side. The squeezed side rotates and falls. A positioning frame 20 is fixed on the other side of the top of the sliding base plate 4.

[0039] The positioning frame 20 has a toothed plate 22 and a toothed plate 23 slidably connected to its two sides. Under normal conditions, the toothed plate 23 is heavier than the toothed plate 22 and has a shorter storage height than the toothed plate 22. The toothed plate 23 has a protruding post on one side. Figure 3 and Figure 6 As shown, an abutment sleeve 11 is installed inside the mold storage cylinder 9. One end of the abutment sleeve 11 passes through the mold storage cylinder 9 and is fitted with a retaining ring. The abutment sleeve 11 should be engaged inside the mold storage cylinder 9 and the storage position is fixed. As the turntable 8 rotates, the side of the abutment sleeve 11 with the retaining ring is moved to the top positioning frame 20 side of the sliding base plate 4, causing the protrusion on the toothed plate 23 on the side of the positioning frame 20 to be in fixed contact with the retaining ring. Therefore, the upward movement of the toothed plate 23 can push the abutment sleeve 11 to move inside the mold storage cylinder 9.

[0040] The female mold 10 is installed inside the mold storage cylinder 9 and is engaged with the top of the abutment sleeve 11 inside the mold storage cylinder 9. Therefore, the rotation of the abutment sleeve 11 can also realize the rotation of the female mold 10. The height adjustment of the abutment sleeve 11 indirectly pushes the female mold 10 to move. Taking advantage of this, a U-shaped rocker arm 19 is rotatably connected to the sliding base plate 4 and located on the cam 17.

[0041] When the arc-shaped block on the entire arc-shaped chuck 18 contacts the shallow arc-shaped cut of the hemispherical disc shell 15, the cam 17 contacts the end of the U-shaped rocker arm 19 and presses down, causing the other side of the U-shaped rocker arm 19 to move down and rotate synchronously. The other side of the U-shaped rocker arm 19 is located above the toothed plate 22, which synchronously pushes the entire toothed plate 22 down. The toothed plate 22 and the toothed plate 23 are connected by the drive tooth 21 in the positioning frame 20. The toothed plate 22 descends and the toothed plate 23 rises, pushing the entire toothed plate 23 and the side wall abutment sleeve 11 to rise synchronously, causing the female mold 10 at the end of the abutment sleeve 11 to rise, gradually move through the positioning disc 14 and drive the blank to contact the male mold 26.

[0042] At this time, the drive assembly 25 drives the male mold 26 to rotate and the female mold 10 to rotate synchronously, so that the blank can be rolled and formed in the mold. Correspondingly, the positioning plate 14 is also equipped with a scraper on the side of the rolling working area to scrape off the edge waste generated by the rolling. The entire drive assembly 25 is fixed on the clamp 24 and can be adjusted in position and deflection angle, with a high degree of freedom.

[0043] Ensure the rotation speed of the rolling head matches that of the mold; the abutment sleeve 11 at the bottom of the female mold 10 also needs to rotate. Figure 3 As shown, a rotating rod 12 is slidably connected to the bottom of the abutment sleeve 11, as... Figure 5 and Figure 6As shown, a convex plate 13 is fixed at the bottom of the rotating rod 12, and a limiting groove 5 is opened on the corresponding sliding base plate 4. The entire limiting groove 5 is provided with a special circular channel in the passive rolling area. A drive groove plate 6 is movably connected in the limiting groove 5 and on the sliding base plate 4. A horizontal groove is provided on the top of the drive groove plate 6, which is adapted to the overall arc groove of the limiting groove 5.

[0044] As the turntable 8 drives the mold storage cylinder 9 to rotate, the protrusions on the bottom cam 13 continuously slide within the limiting groove 5. When the cam 13 moves to the passive rolling area, the two protrusions at the bottom of the cam 13 contact the groove on the drive groove 6. Under the directional rotation of the turntable 8, the protrusions on both sides of the cam 13 and the center of the straight groove on the drive groove 6 are connected in a straight line. At this time, by rotating the drive groove 6, the cam 13 can be driven to rotate, and the connecting sleeve 11 and the female mold 10 on the connecting sleeve 11 also begin to rotate. With the rotation of the top male mold 26, the rolling head and the mold rotation speed are matched to avoid the deformation of the blank. Finally, a blank consistent with the inner cavity of the mold is formed, and then it is demolded and dried.

[0045] As the blank is formed, the raw material in the subsequent mold cylinder 9 is continuously replenished. For the formed blank, an automatic feeding mechanism is also set on the rolling frame 1. The suction cup assembly is used to grab and feed the blank. Before feeding, considering that the structure of the newly formed blank is unstable and direct grabbing may easily cause the blank to deform, an auxiliary drying assembly can be added to the feeding area to heat and shape the entire formed blank. Then, the alternating suction cup assembly 28 installed on the side of the cylinder 27 is used to grab and feed the formed blank, which facilitates the continuous operation of the entire rotary ceramic blank rolling forming device.

[0046] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

Claims

1. A continuous rotary discharge ceramic blank rolling forming device, comprising a rolling frame (1), a transverse drive platform (2) and a vertical drive platform (3), wherein the transverse drive platform (2) is mounted on the top of the rolling frame (1), and the vertical drive platform (3) is mounted on the top of the transverse drive platform (2), characterized in that: The top of the vertical drive platform (3) is slidably connected to a sliding base plate (4), and the center of the sliding base plate (4) is movably connected to a rotating shaft (7) through a bearing. The end of the rotating shaft (7) is fixedly connected to a turntable (8), and a mold storage cylinder (9) is evenly installed on the top of the turntable (8). A female mold (10) is slidably connected inside the mold storage cylinder (9). A support column is fixedly connected to the top of the sliding base plate (4) and inside the rotating shaft (7), and one end of the support column passes through the turntable (8) and is fixedly connected to the positioning plate (14). A clamping cover (24) is fixed to the top of the side wall of the rolling frame (1) by bolts. A drive assembly (25) is installed inside the clamping cover (24). A male mold (26) is installed on the output end of the drive assembly (25). A cylinder (27) is fixedly connected to the other side of the rolling frame (1). An alternating suction cup assembly (28) is fixedly connected to the end of the cylinder (27). The bottom of the sliding base plate (4) is fixed with a motor by bolts. The top of the sliding base plate (4) is movably connected with a rotating shaft (16). A gear is installed on the output end of the motor and meshes with a gear sleeved on the rotating shaft (16). An arc-shaped chuck (18) is sleeved on the rotating shaft (16). A cam (17) is sleeved on the other side of the rotating shaft (16). A hemispherical disc shell (15) is fitted and fixed on the top of the sliding base plate (4) and on the rotating shaft (7). Shallow arc surface cuts are evenly opened on the hemispherical disc shell (15). Deep arc surface cuts are also opened between adjacent shallow arc surface cuts and on the hemispherical disc shell (15). The arc block on the arc chuck (18) is correspondingly set with the shallow arc surface cuts inside the hemispherical disc shell (15). The hook block on the arc chuck (18) is correspondingly set with the deep arc surface cuts inside the hemispherical disc shell (15). A U-shaped rocker arm (19) is rotatably connected to the top of the sliding base plate (4) and on the side of the cam (17). The top of the sliding base plate (4) is fixedly connected to a positioning frame (20). Toothed plate one (22) and toothed plate two (23) are slidably connected in the grooves on both sides of the positioning frame (20). A drive tooth (21) is movably connected in the positioning frame (20). The toothed plate one (22) and toothed plate two (23) are meshed with the two sides of the drive tooth (21) on opposite sides.

2. The ceramic blank rolling forming device with continuous rotary discharge according to claim 1, characterized in that, A limiting groove (5) is provided on the sliding base plate (4) and at the bottom of the turntable (8), and a driving groove plate (6) is movably connected in the limiting groove (5) and on the sliding base plate (4).

3. The ceramic green body rolling forming device with continuous rotary discharge according to claim 2, characterized in that, The turntable (8) is connected to the mold storage cylinder (9) and is located at the bottom of the female mold (10) with a retaining sleeve (11). The female mold (10) is engaged with the retaining sleeve (11). The retaining sleeve (11) passes through the mold storage cylinder (9) and is slidably connected to a rotating rod (12). The end of the rotating rod (12) is fixedly connected to a convex plate (13). The bottom of the convex plate (13) protrudes and engages with the limiting groove (5).

4. The ceramic blank rolling forming device with continuous rotary discharge according to claim 3, characterized in that, The continuous rotary discharge ceramic blank rolling forming method is as follows: In passive contact molding, the position of the male mold (26) at the end of the drive assembly (25) on the rolling frame (1) is fixed first. The sliding base plate (4) on the horizontal drive stage (2) and the vertical drive stage (3) is controlled to move so that the rolling area on the side of the positioning plate (14) corresponds to the male mold (26). Then, the female mold (10) is fixedly installed in the mold storage cylinder (9) on the turntable (8). As the ceramic blank is cut and placed in the female mold (10), the mold cylinder (9) with the blank is moved to the bottom of the rolling area on the side of the positioning plate (14) by rotating the first shaft (7) 120°. As the arc chuck (18) continues to rotate, the cam (17) at the end of the second shaft (16) presses down the U-shaped rocker (19), causing the toothed plate (22) in the positioning frame (20) on the other side to move down, pushing the abutment sleeve (11) on the side of the toothed plate (23) to move up, and pushing the abutment sleeve (11) located in the mold cylinder (9) upward, causing the female mold (10) containing the ceramic blank to contact the male mold (26) at the end of the drive assembly (25). The drive groove plate (6) rotates, driving the convex plate (13) and the abutment sleeve (11) to rotate, realizing the rotation of the female mold (10), while the drive assembly (25) drives the male mold (26) to rotate, completing the rolling of the ceramic blank. After the rolling is completed, the turntable (8) rotates 120° again to move the forming blank to the unloading station. The cylinder (27) pushes the alternating suction cup assembly (28) to contact the forming blank, thus completing the separation of the forming blank from the female mold (10).

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