Method and moving die device for the ejection of a ceramic roll blank to a heating

Abstract

The application discloses a kind of ceramic roller blank body to heat the method and the moving ejection device, ceramic roller blank body to heat the method includes the following steps: the formed ceramic roller blank body is separated from ceramic roller mould and placed in moving ejection device;Ceramic roller blank body is transferred to drying car by moving ejection device;By the drying car and ceramic roller blank body whole is transferred to drying device;Ceramic roller blank body is heated in drying device after segmentation and obtains ceramic roller;Then drying car and ceramic roller whole is removed from drying device;Realize that ceramic roller blank body avoids the phenomenon that crack or fracture appears in moving process after ejection, realizes that the ceramic roller obtained can not appear cracking or damage phenomenon.

Description

Technical Field

[0001] This invention relates to the field of ceramic roller manufacturing, and more particularly to a method for heating a ceramic roller blank after demolding, and a moving demolding device. Background Technology

[0002] Due to their excellent material properties, fused silica ceramic rollers have been widely used in the glass industry as key components in horizontal glass tempering furnaces and annealing furnaces for ultra-thin, electronic, and photovoltaic glass, used for carrying and transporting glass. They are also used in high-end precision manufacturing fields such as large-size erosion-resistant float refractories in photovoltaic glass furnaces, annealing of metal strips, automotive stamping sheets, and cast aluminum and copper. With the development of Industry 4.0, the market demand for fused silica ceramic rollers is constantly increasing. Fused silica ceramic rollers are generally available in diameters ranging from φ18 to φ305 mm and lengths from 1000 to 7500 mm.

[0003] In the production process of fused silica ceramic rollers, a ceramic roller blank must first be formed. This involves mixing the raw materials and then injecting them into a quartz ceramic roller mold. After forming, the ceramic roller blank is demolded, dried, and fired to obtain the finished product. After forming, the ceramic roller blank has a high internal moisture content and low strength. After demolding, the ceramic roller blank needs to be moved for sintering. The diameter of the ceramic roller is between φ50-φ120 and φ180-φ250, and the length ranges from 2500mm to 7500mm. Because the ceramic roller blank is not yet processed, a larger grinding allowance needs to be reserved in both the diameter and length directions. Therefore, the diameter and length of the ceramic roller blank are larger than the diameter and length of the ceramic roller. Excessive external force during movement can cause cracks or even breakage.

[0004] Therefore, how to prevent cracks or breakage of the ceramic roller blank during its movement after demolding has become an urgent problem to be solved in this field. Summary of the Invention

[0005] To solve the above-mentioned technical problems, a method for demolding and heating a ceramic roller blank and a moving demolding device are provided to prevent cracks or breakage of the ceramic roller blank during the moving process after demolding, so that the obtained ceramic roller will not crack or be damaged.

[0006] According to one aspect of the present invention, a method for demolding and heating a ceramic roll blank is provided, comprising the following steps:

[0007] The formed ceramic roll blank is removed from the ceramic roll mold and placed in the moving demolding device;

[0008] The ceramic roll blank is transferred to the drying cart by moving the demolding device;

[0009] The entire ceramic roll blank is transferred from the drying cart to the drying device.

[0010] Ceramic rollers are obtained by segmenting and heating the ceramic roller blank in a drying device.

[0011] Then the drying cart and ceramic rollers are moved out of the drying unit as a whole.

[0012] Compared with the prior art, the advantages of this invention are as follows: by separating the formed ceramic roll blank from the ceramic roll mold and placing it in the moving demolding device, the demolded ceramic roll blank is moved to the drying position. Furthermore, the ceramic roll blank can be removed from the mold without manual handling or equipment, and the ceramic roll blank is protected from falling more than 2cm during this process. The process of manually or physically handling the demolded ceramic roll blank during movement is also avoided. Therefore, it helps to prevent cracks or breakage of the demolded ceramic roll blank during movement.

[0013] The ceramic roll blank is transferred to the drying cart by the moving demolding device. The drying cart and the ceramic roll blank are transferred to the drying device as a whole. This further ensures that the ceramic roll blank will not be directly grasped by humans or devices from demolding to the end of sintering, thereby avoiding cracks or breakage of the ceramic roll blank and ceramic roll.

[0014] The ceramic roller is obtained by segmenting the ceramic roller blank in the drying device. This avoids the problem of cracking or deformation of the ceramic roller blank during the drying process caused by the relatively high content of the middle part of the ceramic roller blank compared with the surface layer. Thus, the obtained ceramic roller will not crack or be damaged.

[0015] Furthermore, the process of removing the formed ceramic roll blank from the ceramic roll mold and placing it in the moving demolding device includes the following steps:

[0016] The ceramic roller mold includes a lower mold and an upper mold disposed above the lower mold.

[0017] The ceramic roll blank is located in the first accommodating space between the upper mold and the lower mold;

[0018] The ceramic roller mold is located on the demolding platform, where the upper mold is separated from the lower mold and the upper mold is removed.

[0019] Move the movable demolding device to the edge of the demolding platform, and transfer the lower mold and the ceramic roller blank located in the lower mold along the demolding platform to the movable demolding device.

[0020] Then the lower mold and the ceramic roll blank located in the moving demolding device are rotated 180 degrees as a whole;

[0021] After rotating the second accommodating cavity 180 degrees, the ceramic roller blank is located above the inner top surface of the second accommodating cavity, and the lower mold is inverted above the ceramic roller blank;

[0022] Remove the lower mold and place the ceramic roll blank on the moving demolding device.

[0023] The advantage of the previous step is that by moving the moving mold ejection device to the edge of the mold ejection platform, the lower mold and the ceramic roll blank located in the lower mold are moved along the mold ejection platform to the moving mold ejection device. During this movement, the ceramic roll blank is protected by the lower mold and does not need to be directly aligned, clamped or moved, which helps to avoid the problem of cracking or damage to the ceramic roll blank during the movement.

[0024] By rotating the lower mold and the ceramic roll blank in the moving demolding device by 180 degrees, the ceramic roll blank is placed on the surface of the roller telescopic support frame of the moving demolding device. During this process, the ceramic roll blank does not need to be directly clamped and will not fall from a certain height onto the roller telescopic support frame, thus helping to avoid cracking or damage to the ceramic roll blank during the movement.

[0025] The lower mold can be removed without moving the ceramic roller blank after a 180-degree flip.

[0026] Furthermore, the specific process of transferring the lower mold and the ceramic roll blank located within the lower mold along the demolding platform to the moving demolding device includes the following steps:

[0027] The part of the ejection platform near the mobile ejection device is provided with several first support rollers, which push the lower mold and the ceramic roll blank as a whole onto the surface of the several first support rollers.

[0028] Align the bottom surface of the inner cavity of the second accommodating cavity of the movable mold ejection device with the upper surface of the first support roller; and insert the lower mold and the ceramic roll blank into the second accommodating cavity along the lower surface of the second accommodating cavity.

[0029] The lower surface of the second accommodating cavity is provided with a plurality of second support rollers; preferably, the height of the inner wall of the second accommodating cavity is H, and the maximum height of the ceramic roller blank in the lower mold is h;

[0030] H > h; Hh ≤ 2cm;

[0031] Preferably, after the movable ejector device moves to the edge of the ejector platform, the lifting device of the movable ejector device is adjusted to align the inner bottom surface of the second accommodating cavity of the movable ejector device with the upper surface of the first support roller.

[0032] The beneficial effect of the previous step is that a number of first support rollers are provided at the part of the ejection platform near the moving ejection device, and a number of second support rollers are provided on the lower surface of the second accommodating cavity, which reduces the resistance of the ceramic roll blank and the third mold during the movement to the moving ejection device.

[0033] Furthermore, the specific process of rotating the lower mold and the ceramic roll blank as a whole in the moving demolding device by 180 degrees includes the following steps:

[0034] Rotate the handle or drive shaft, and the handle or drive shaft will drive the first inner rotating shaft to rotate. The first inner rotating shaft will drive the first sleeve with internal teeth to rotate through the external teeth on the outside.

[0035] The first sleeve drives the second accommodating cavity to rotate; after the second accommodating cavity rotates 180 degrees, it stops rotating.

[0036] The beneficial effect of the previous step is that the first rotating inner shaft is driven to rotate by the handle or the drive shaft. The first rotating inner shaft drives the first sleeve with internal teeth to rotate through the external teeth provided on the outside. This realizes that the second accommodating cavity and the ceramic roll blank inside it are rotated 180 degrees. Moreover, the speed can be adjusted during the rotation process, so as to realize slow rotation. This avoids the problem of cracking or damage to the ceramic roll blank caused by large vibration during the rotation process.

[0037] Furthermore, before rotating the lower mold and the ceramic roll blank as a whole in the moving demolding device by 180 degrees, the following steps are also included:

[0038] The inner top surface of the second accommodating cavity includes several support bars connected in sequence; adjacent support bars are hinged; by the simultaneous contraction of the first telescopic device and the second telescopic device connected to both ends of the support bars near the opening end of the second accommodating cavity, the inner top surface of the second accommodating cavity becomes a concave surface, and the concave surface is adapted to the outer surface of the ceramic roller blank.

[0039] The beneficial effect of the previous step is that by simultaneously contracting the first and second telescopic devices, the inner top surface of the second accommodating cavity becomes concave, thereby forming a groove on the inner top surface of the second accommodating cavity. This allows the ceramic roller blank to be located within the groove on the inner top surface of the second accommodating cavity, thus preventing the ceramic roller blank from shaking when it is subsequently flipped 180 degrees and moved to the vicinity of the drying cart. This helps to avoid damage or cracking of the ceramic roller blank.

[0040] Furthermore, the process of transferring the ceramic roll blank into the drying cart via the moving demolding device includes the following steps:

[0041] Move the movable demolding device closer to the drying cart, extend the first telescopic device and the second telescopic device at the same time, flatten the inner top surface of the second accommodating cavity and make it flush with the upper surface of the support frame of the drying cart, and then move the ceramic roller blank onto the support frame of the drying cart.

[0042] Preferably, the first telescopic device and the second telescopic device are extended simultaneously to flatten the inner top surface of the second accommodating cavity, and then the lifting device is adjusted to make the upper surface of the inner top surface of the second accommodating cavity flush with the upper surface of the support frame of the drying cart.

[0043] The advantage of the previous step is that by moving the movable demolding device closer to the drying cart, the first telescopic device and the second telescopic device are extended simultaneously, so that the inner top surface of the second accommodating cavity is flattened. This allows the ceramic blank to be rolled onto the drying cart support frame, avoiding damage or cracking of the ceramic blank during the movement.

[0044] Furthermore, the process of segmenting the heating of the ceramic roll blank in a drying device to obtain the ceramic roll includes the following steps:

[0045] The heating process is divided into several stages: first, heating from room temperature to 80-110℃ at a rate of 3-5℃ / min, and holding at 80-110℃ for 24-30 hours; then heating from 80-110℃ to 200-220℃ at a rate of 8-10℃ / min, and holding at 200-220℃ for 2-5 hours; then heating from 200-220℃ to 850-950℃ at a rate of 3-4℃ / min; and finally heating from 850-950℃ to 1200-1300℃ at a rate of 1-2℃ / min, and holding at 1200-1300℃ for 3-5 hours.

[0046] The beneficial effect of the previous step is that by heating at 80-110℃ at a rate of 3-5℃ / min and holding at 80-110℃ for 24-30 hours, the moisture inside the ceramic roll blank can be slowly evaporated, thereby forming certain pores inside the ceramic roll blank and reducing the internal stress of the ceramic roll blank. This avoids the phenomenon of cracking or damage caused by internal stress due to the simultaneous evaporation of a large amount of moisture.

[0047] By raising the temperature from 80-110℃ to 200-220℃ at a rate of 8-10℃ / min and holding it at 200-220℃ for 2-5 hours, some of the moisture inside the ceramic roll blank is slowly evaporated, reducing internal stress. The remaining moisture is then rapidly evaporated from the inside of the ceramic roll blank to the surface, forming small-diameter pores without causing cracking or surface roughness on the ceramic roll blank surface.

[0048] By holding the temperature at 200-220℃ for 2-5 hours and then raising the temperature from 200-220℃ to 850-950℃ at a rate of 3-4℃ / min, the small amount of macromolecular volatiles present in the ceramic roll blank are slowly decomposed and then slowly volatilized along the small-diameter pores, thus avoiding cracking or damage to the ceramic roll blank.

[0049] By heating from 850-950℃ to 1200-1300℃ at a rate of 1-2℃ / min and holding at 1200-1300℃ for 3-5 hours, the internal grains of the ceramic roll blank grow slowly, avoiding the phenomenon of bubbles in the grains and thus preventing the problem of reduced strength of the ceramic roll.

[0050] Another aspect of the present invention discloses a movable demolding device for a method of demolding a ceramic roller blank to heating;

[0051] The mobile ejection device includes a base frame, a tilting device, and a lifting device;

[0052] The tilting device is connected to the base frame via a lifting device;

[0053] The base frame is equipped with pulleys;

[0054] The flipping device includes a rotating component, a roller telescopic support frame, a mold support frame, and a connecting bracket connecting the roller telescopic support frame and the mold support frame; the roller telescopic support frame, the mold support frame, and the connecting bracket form a second accommodating cavity with an opening on one side;

[0055] The connecting bracket is connected to the rotating component, and the rotating component is rotatably connected to the lifting device through a bearing; preferably, the height of the inner wall of the second accommodating cavity is H, and the maximum overall height of the ceramic roll blank in the lower mold is h.

[0056] H>h;Hh≤2cm.

[0057] Compared with the prior art, the advantages of this invention are as follows: the moving demolding device separates the formed ceramic roller blank from the ceramic roller mold and moves it to the drying cart, and the ceramic roller blank can be removed from the mold without manual or equipment gripping, and the ceramic roller blank is protected from falling from a height of more than 2cm during this process; the process of manual or equipment gripping the ceramic roller blank during the movement after demolding is avoided; thus, it is beneficial to prevent the ceramic roller blank from cracking or breaking during the movement after demolding.

[0058] The flipping device enables the ceramic roll blank and the lower mold carrying the ceramic roll blank to move into the second accommodating cavity; the inner bottom surface of the second accommodating cavity is formed by the mold support structure; the inner top surface of the second accommodating cavity is formed by the roll body telescopic support structure.

[0059] Before the second accommodating cavity is rotated 180 degrees, the lower mold is placed on the lower surface of the mold support frame, the roller telescopic support frame is located above the ceramic roller blank, and the distance between the highest point of the upper surface of the ceramic roller blank and the roller telescopic support frame is ≤2cm.

[0060] After the second accommodating cavity is rotated 180 degrees, the ceramic roll blank is placed above the roll telescopic support frame, and the mold support frame is located above the lower mold. This allows the lower mold to be moved away by rotating or disassembling the mold support frame, thereby achieving demolding of the ceramic roll blank. The entire demolding process avoids problems such as direct clamping of the ceramic roll blank, vibration, or shaking, thus preventing cracking or damage to the ceramic roll blank.

[0061] The rotating component is rotatably connected to the lifting device via a bearing, thereby enabling the second accommodating cavity to rotate 180 degrees.

[0062] The lifting device is used to lift the second accommodating cavity, so that when the lower mold and ceramic roll blank are moved to the second accommodating cavity, the upper surface of the inner bottom of the second accommodating cavity is flush with the upper surface of the first support roller of the demolding platform; after the second accommodating cavity is rotated 180 degrees, the demolding device is moved to the vicinity of the drying cart, so that the upper surface of the inner top of the flattened second accommodating cavity is flush with the upper surface of the drying cart.

[0063] Furthermore, the rotating component includes a transmission mechanism, a first rotating inner shaft, and a first sleeve sleeved outside the first rotating inner shaft;

[0064] The transmission mechanism is connected to the end of the first rotating inner shaft; the first rotating inner shaft is provided with external teeth on its outside and the inner wall of the first sleeve is provided with internal teeth, and the external teeth mesh with the internal teeth.

[0065] The portions of the first rotating inner shaft that extend out of the first sleeve are rotatably connected to the lifting device via bearings.

[0066] The outer wall of the first sleeve is connected to the lifting device and the connecting bracket;

[0067] and / or

[0068] The mold support frame includes a mold support frame and a plurality of second support rollers rotatably connected to the mold support frame; the mold support frame and the connecting bracket are rotatably or detachably connected.

[0069] and / or

[0070] The roller telescopic support frame includes a plurality of support bars connected in sequence; adjacent support bars are hinged together; the two ends of the support bars near the opening of the second accommodating cavity are respectively connected to a first telescopic device and a second telescopic device, and the ends of the first telescopic device and the second telescopic device away from the support bar are connected to a connecting bracket.

[0071] The surfaces of the plurality of support bars are connected to an elastic material, which is one of rubber, silicone, and polytetrafluoroethylene; preferably, the transmission mechanism includes a handle or a transmission shaft connected to a power device.

[0072] Preferably, the mold support frame and the connecting bracket are rotatably connected, and the mold support frame is rotatably connected to the connecting bracket through a rotatable connection structure; the rotatable connection mechanism includes a second rotating inner shaft connected to the mold support frame and a second sleeve connected to the connecting bracket; the second rotating inner shaft is provided with a first through hole, and the second sleeve is provided with a plurality of second through holes; the rotatable connection mechanism further includes a locking component, the locking component including a plurality of bolts passing through the first through hole and the second through hole, and a locking cap detachably connected to the bolts.

[0073] The beneficial effect of the previous step is that the transmission mechanism is connected to the end of the first rotating inner shaft; the first rotating inner shaft is provided with external teeth on its outside and internal teeth on the inner wall of the first sleeve. The external teeth mesh with the internal teeth, so that the transmission mechanism drives the first rotating inner shaft to rotate, and the first rotating inner shaft drives the first sleeve to rotate through the meshing of the external teeth and internal teeth; the first sleeve drives the first accommodating cavity to rotate; and since the power is transmitted through the meshing of the internal teeth and external teeth, the first accommodating cavity can rotate slowly and there will be no vibration or shaking during the rotation.

[0074] The mold support frame includes a mold support frame and a plurality of second support rollers rotatably connected to the mold support frame; the mold support frame is rotatably or detachably connected to the connecting bracket, which helps to reduce the resistance during the movement of the ceramic roller blank and the lower mold.

[0075] The roller telescopic support frame includes several support bars connected in sequence; adjacent support bars are hinged; the two ends of the support bars near the opening of the second accommodating cavity are respectively connected to a first telescopic device and a second telescopic device; it can be extended by the first telescopic device and the second telescopic device, and the roller telescopic support frame is flat; or it can be retracted by the first telescopic device and the second telescopic device, and the roller telescopic support frame is bent to form a groove structure, so that the ceramic roller blank is located in the groove structure, avoiding the problem of vibration or shaking of the ceramic roller blank during the 180-degree rotation of the first accommodating cavity and the movement of the moving demolding device;

[0076] The presence of elastic material on the surface of the aforementioned support bars further helps to prevent damage to the ceramic roll blank during the conveying process.

[0077] Furthermore, the movable demolding device also includes a tilting device support structure;

[0078] The support structure for the tilting device is located below the tilting device; the support structure for the tilting device is connected to the lifting device.

[0079] The advantage of adopting the previous step is that, through the support structure of the flipping device, the problem of shaking during the flipping of the dry rotating device is further avoided. Attached Figure Description

[0080] Figure 1 This is a schematic diagram of the moving demolding device in Example 2.

[0081] As shown in the figure:

[0082] 1. Base frame; 2. Pulley; 3. Lifting device; 4. Mold support frame; 5. Roller telescopic support frame; 6. Connecting bracket; 7. First telescopic device; 8. First hinged connector; 9. Support bar; 10. Second support roller; 11. First sleeve; 12. First rotating inner shaft; 13. Internal gear; 14. External gear; 15. Bearing; 16. Locking component. Detailed Implementation

[0083] To better understand the technical solution of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0084] Example 1:

[0085] This embodiment provides a method for heating a ceramic roll blank after demolding, including the following steps:

[0086] The formed ceramic roll blank is detached from the ceramic roll mold and placed in the moving demolding device; specifically, the following steps are included:

[0087] The ceramic roller mold includes a lower mold and an upper mold disposed above the lower mold.

[0088] The ceramic roll blank is located in the first accommodating space between the upper mold and the lower mold;

[0089] The ceramic roller mold is located on the demolding platform, where the upper mold is separated from the lower mold and the upper mold is removed.

[0090] Move the movable demolding device to the edge of the demolding platform, and transfer the lower mold and the ceramic roller blank located in the lower mold along the demolding platform to the movable demolding device.

[0091] The specific process of transferring the lower mold and the ceramic roll blank located inside the lower mold along the demolding platform to the moving demolding device includes the following steps:

[0092] The part of the ejection platform near the mobile ejection device is provided with several first support rollers, which push the lower mold and the ceramic roll blank as a whole onto the surface of the several first support rollers.

[0093] After the moving mold ejection device moves to the edge of the mold ejection platform, the lifting device 3 of the moving mold ejection device is adjusted to align the inner bottom surface of the second accommodating cavity of the moving mold ejection device with the upper surface of the first support roller; the lower mold and the ceramic roller blank enter the second accommodating cavity along the lower surface of the second accommodating cavity;

[0094] The lower surface of the second accommodating cavity is provided with a plurality of second support rollers 10; the height of the inner wall of the second accommodating cavity is H, and the maximum height of the ceramic roller blank in the lower mold is h; H > h; Hh ≤ 2cm.

[0095] Then, the lower mold and the ceramic roller blank in the moving mold ejection device are rotated 180 degrees as a whole; after the second accommodating cavity is rotated 180 degrees, the ceramic roller blank is located above the inner top surface of the second accommodating cavity, and the lower mold is upside down on top of the ceramic roller blank.

[0096] The specific process of rotating the lower mold and the ceramic roll blank in the moving demolding device by 180 degrees includes the following steps:

[0097] Rotate the handle or drive shaft, and the handle or drive shaft will drive the first inner rotating shaft 12 to rotate. The first inner rotating shaft 12 will drive the first sleeve 11 with internal teeth 13 to rotate through the external teeth 14 provided on the outside.

[0098] The first sleeve 11 drives the second accommodating cavity to rotate; after the second accommodating cavity rotates 180 degrees, it stops rotating;

[0099] Remove the lower mold and place the ceramic roll blank on the moving demolding device;

[0100] The ceramic roll blank is transferred to the drying cart by moving the demolding device, specifically including the following steps: moving the demolding device closer to the drying cart, extending the first telescopic device 7 and the second telescopic device simultaneously, flattening the inner top surface of the second accommodating cavity, adjusting the lifting device 3 to align the upper surface of the inner top surface of the second accommodating cavity with the upper surface of the support frame of the drying cart, and then moving the ceramic roll blank onto the support frame of the drying cart.

[0101] The ceramic roller is obtained by segmented heating of the ceramic roller blank in a drying device; the segmented heating process includes the following steps:

[0102] The heating process was divided into three stages: heating from room temperature to 95℃ at a rate of 4℃ / min and holding at 95℃ for 27 hours; heating from 95℃ to 210℃ at a rate of 9℃ / min and holding at 210℃ for 3.5 hours; heating from 210℃ to 900℃ at a rate of 3.5℃ / min; and heating from 900℃ to 1250℃ at a rate of 1.5℃ / min and holding at 1250℃ for 4 hours.

[0103] Then the drying cart and ceramic rollers are moved out of the drying unit as a whole.

[0104] Another aspect of this embodiment provides a movable demolding device for a method of demolding a ceramic roller blank to heating;

[0105] The movable ejection device includes a base frame 1, a tilting device, and a lifting device 3;

[0106] The tilting device is connected to the base frame 1 via a lifting device 3; the base frame 1 is provided with pulleys 2 at its bottom;

[0107] The flipping device includes a rotating component, a roller telescopic support frame 5, a mold support frame 4, and a connecting bracket 6 connecting the roller telescopic support frame 5 and the mold support frame 4; the roller telescopic support frame 5, the mold support frame 4, and the connecting bracket 6 form a second accommodating cavity with an opening on one side;

[0108] The connecting bracket 6 is connected to the rotating component, and the rotating component is rotatably connected to the lifting device 3 through the bearing 15; the height of the inner wall of the second accommodating cavity is H, and the maximum overall height of the ceramic roll blank in the lower mold is h; H>h; Hh≤2cm;

[0109] The rotating component includes a transmission mechanism, a first inner rotating shaft 12, and a first sleeve 11 sleeved outside the first inner rotating shaft 12.

[0110] The transmission mechanism is connected to the end of the first rotating inner shaft 12; the first rotating inner shaft 12 is provided with external teeth 14, and the inner wall of the first sleeve 11 is provided with internal teeth 13, and the external teeth 14 mesh with the internal teeth 13.

[0111] The portions of the first rotating inner shaft 12 extending out of the first sleeve 11 are rotatably connected to the lifting device 3 via bearings 15; the outer wall of the first sleeve 11 is connected to the lifting device 3 and the connecting bracket 6; the transmission mechanism is a handle;

[0112] The mold support frame 4 includes a mold support frame and a plurality of second support rollers 10 rotatably connected to the mold support frame;

[0113] The mold support frame 4 is rotatably connected to the connecting bracket 6. The mold support frame 4 is rotatably connected to the connecting bracket 6 through a rotatable connection structure. The rotatable connection mechanism includes a second inner rotating shaft connected to the mold support frame 4 and a second sleeve connected to the connecting bracket 6.

[0114] The second rotating inner shaft is provided with a first through hole, and the second sleeve is provided with a plurality of second through holes;

[0115] The rotating connection mechanism further includes a locking component 16, which includes a plurality of bolts passing through the first through hole and the second through hole, and a locking cap detachably connected to the bolts.

[0116] Example 2:

[0117] The contents that are the same as in Example 1 will not be repeated here; the different aspects of this embodiment compared to Example 1 are as follows:

[0118] This embodiment provides a method for heating a ceramic roll blank after demolding, which further includes the following steps:

[0119] Before rotating the lower mold and ceramic roll blank in the moving demolding device by 180 degrees, the following steps are also included:

[0120] The inner top surface of the second accommodating cavity includes a plurality of support bars 9 connected in sequence; adjacent support bars 9 are hinged together; the first telescopic device 7 and the second telescopic device connected at both ends of the support bars 9 near the opening end of the second accommodating cavity contract simultaneously, turning the inner top surface of the second accommodating cavity into a concave surface, which is adapted to the outer surface of the ceramic roller blank.

[0121] The segmented heating process includes the following steps:

[0122] The heating process was divided into three stages: heating from room temperature to 105℃ at a rate of 4.5℃ / min and holding at 105℃ for 26 hours; heating from 105℃ to 215℃ at a rate of 9.5℃ / min and holding at 215℃ for 4.5 hours; heating from 215℃ to 935℃ at a rate of 3.8℃ / min; and heating from 935℃ to 1280℃ at a rate of 1.8℃ / min and holding at 1280℃ for 4.8 hours.

[0123] Another aspect of this embodiment provides a movable demolding device, wherein the roller telescopic support frame 5 includes a plurality of support bars 9 connected in sequence; adjacent support bars 9 are hinged together; the two ends of the support bars 9 near the opening of the second accommodating cavity are respectively connected to a first telescopic device 7 and a second telescopic device, and the ends of the first telescopic device 7 and the second telescopic device away from the support bars 9 are connected to a connecting bracket 6.

[0124] The surfaces of the plurality of support bars 9 are connected to an elastic material, which is rubber; the transmission mechanism is a transmission shaft connected to a power device.

[0125] The moving demolding device also includes a tilting device support structure;

[0126] The support structure for the tilting device is located below the tilting device; the support structure for the tilting device is connected to the lifting device 3.

[0127] Example 3:

[0128] The contents that are the same as in Example 1 will not be repeated here; the different aspects of this embodiment compared to Example 1 are as follows:

[0129] This embodiment provides a method for heating a ceramic roll blank after demolding, which further includes the following steps:

[0130] Before rotating the lower mold and ceramic roll blank in the moving demolding device by 180 degrees, the following steps are also included:

[0131] The inner top surface of the second accommodating cavity includes a plurality of support bars 9 connected in sequence; adjacent support bars 9 are hinged together; the first telescopic device 7 and the second telescopic device connected at both ends of the support bars 9 near the opening end of the second accommodating cavity contract simultaneously, turning the inner top surface of the second accommodating cavity into a concave surface, which is adapted to the outer surface of the ceramic roller blank.

[0132] The segmented heating process includes the following steps:

[0133] The heating process was divided into three stages: heating from room temperature to 85℃ at a rate of 4.8℃ / min and holding at 85℃ for 29 hours; heating from 85℃ to 205℃ at a rate of 8.5℃ / min and holding at 205℃ for 4.8 hours; heating from 205℃ to 860℃ at a rate of 3.2℃ / min; and heating from 860℃ to 1220℃ at a rate of 1.2℃ / min and holding at 1220℃ for 4.8 hours.

[0134] Another aspect of this embodiment provides a movable demolding device, wherein the roller telescopic support frame 5 includes a plurality of support bars 9 connected in sequence; adjacent support bars 9 are hinged by a first hinge connector 8; the two ends of the support bars 9 near the opening of the second accommodating cavity are respectively connected to a first telescopic device 7 and a second telescopic device, and the ends of the first telescopic device 7 and the second telescopic device away from the support bars 9 are connected to a connecting bracket 6.

[0135] The surfaces of the plurality of support bars 9 are connected to an elastic material, which is silicone; the transmission mechanism is a transmission shaft connected to a power device.

[0136] The moving demolding device also includes a tilting device support structure;

[0137] The support structure for the tilting device is located below the tilting device; the support structure for the tilting device is connected to the lifting device 3.

[0138] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A method for heating a ceramic roll blank after demolding, characterized in that, Includes the following steps: The formed ceramic roll blank is removed from the ceramic roll mold and placed in the moving demolding device; The ceramic roll blank is transferred to the drying cart by moving the demolding device; The entire ceramic roll blank is transferred from the drying cart to the drying device. Ceramic rollers are obtained by segmenting and heating the ceramic roller blank in a drying device. Then the drying cart and ceramic rollers are moved out of the drying unit as a whole.

2. The method for heating a ceramic roll blank according to claim 1, characterized in that, The process of removing the formed ceramic roll blank from the ceramic roll mold and placing it in the moving demolding device includes the following steps: The ceramic roller mold includes a lower mold and an upper mold disposed above the lower mold. The ceramic roll blank is located in the first accommodating space between the upper mold and the lower mold; The ceramic roller mold is located on the demolding platform, where the upper mold is separated from the lower mold and the upper mold is removed. Move the movable demolding device to the edge of the demolding platform, and transfer the lower mold and the ceramic roller blank located in the lower mold along the demolding platform to the movable demolding device. Then the lower mold and the ceramic roll blank located in the moving demolding device are rotated 180 degrees as a whole; After the second accommodating cavity is rotated 180 degrees, the ceramic roller blank is located above the inner top surface of the second accommodating cavity, and the lower mold is inverted above the ceramic roller blank; Remove the lower mold and place the ceramic roll blank on the moving demolding device.

3. The method for heating a ceramic roll blank according to claim 2, characterized in that, The specific process of transferring the lower mold and the ceramic roll blank located inside the lower mold along the demolding platform to the moving demolding device includes the following steps: The part of the ejection platform near the mobile ejection device is provided with several first support rollers, which push the lower mold and the ceramic roll blank as a whole onto the surface of the several first support rollers. Align the inner bottom surface of the second accommodating cavity of the movable mold ejection device with the upper surface of the first support roller; and insert the lower mold and the ceramic roll blank into the second accommodating cavity along the lower surface of the second accommodating cavity. The lower surface of the second accommodating cavity is provided with a plurality of second support rollers.

4. The method for heating a ceramic roll blank according to claim 2, characterized in that, The specific process of rotating the lower mold and the ceramic roll blank in the moving demolding device by 180 degrees includes the following steps: Rotate the handle or drive shaft, and the handle or drive shaft will drive the first inner rotating shaft to rotate. The first inner rotating shaft will drive the first sleeve with internal teeth to rotate through the external teeth on the outside. The first sleeve drives the second accommodating cavity to rotate; after the second accommodating cavity rotates 180 degrees, it stops rotating.

5. The method for demolding and heating a ceramic roll blank according to claim 4, characterized in that, Before rotating the lower mold and ceramic roll blank in the moving demolding device by 180 degrees, the following steps are also included: The inner top surface of the second accommodating cavity includes several support bars connected in sequence; adjacent support bars are hinged; by the simultaneous contraction of the first telescopic device and the second telescopic device connected to both ends of the support bars near the opening end of the second accommodating cavity, the inner top surface of the second accommodating cavity becomes a concave surface, and the concave surface is adapted to the outer surface of the ceramic roller blank.

6. The method for heating a ceramic roll blank according to claim 5, characterized in that, The process of transferring the ceramic roll blank into the drying cart via the moving demolding device includes the following steps: The movable demolding device is moved closer to the drying cart, and the first telescopic device and the second telescopic device are extended simultaneously. The inner top surface of the second accommodating cavity is flattened and aligned with the upper surface of the support frame of the drying cart. Then, the ceramic roller blank is moved onto the support frame of the drying cart.

7. The method for heating a ceramic roll blank according to claim 5, characterized in that, The process of segmented heating of ceramic roller blanks in a drying device to obtain ceramic rollers includes the following steps: The heating process is divided into several stages: first, heating from room temperature to 80-110℃ at a rate of 3-5℃ / min, and holding at 80-110℃ for 24-30 hours; then heating from 80-110℃ to 200-220℃ at a rate of 8-10℃ / min, and holding at 200-220℃ for 2-5 hours; then heating from 200-220℃ to 850-950℃ at a rate of 3-4℃ / min; and finally heating from 850-950℃ to 1200-1300℃ at a rate of 1-2℃ / min, and holding at 1200-1300℃ for 3-5 hours.

8. A movable demolding device, characterized in that, A method for demolding and heating the ceramic roll blank as described in any one of claims 1-7; The mobile ejection device includes a base frame, a tilting device, and a lifting device; The tilting device is connected to the base frame via a lifting device; The base frame is equipped with pulleys; The flipping device includes a rotating component, a roller telescopic support frame, a mold support frame, and a connecting bracket connecting the roller telescopic support frame and the mold support frame; the roller telescopic support frame, the mold support frame, and the connecting bracket form a second accommodating cavity with an opening on one side; The connecting bracket is connected to the rotating component, and the rotating component is rotatably connected to the lifting device through a bearing.

9. The movable demolding device according to claim 8, characterized in that, The rotating component includes a transmission mechanism, a first inner rotating shaft, and a first sleeve sleeved outside the first inner rotating shaft. The transmission mechanism is connected to the end of the first rotating inner shaft; the first rotating inner shaft is provided with external teeth on its outside and the inner wall of the first sleeve is provided with internal teeth, and the external teeth mesh with the internal teeth. The portions of the first rotating inner shaft that extend out of the first sleeve are rotatably connected to the lifting device via bearings. The outer wall of the first sleeve is connected to the lifting device and the connecting bracket; and / or The mold support frame includes a mold support frame and a plurality of second support rollers rotatably connected to the mold support frame; the mold support frame and the connecting bracket are rotatably or detachably connected. and / or The roller telescopic support frame includes a plurality of support bars connected in sequence; adjacent support bars are hinged together; the two ends of the support bars near the opening of the second accommodating cavity are respectively connected to a first telescopic device and a second telescopic device, and the ends of the first telescopic device and the second telescopic device away from the support bar are connected to a connecting bracket. The surfaces of the several support strips are connected to an elastic material, which is one of rubber, silicone, or polytetrafluoroethylene.

10. The movable demolding device according to claim 1, characterized in that, It also includes the support structure for the flipping device; The support structure for the tilting device is located below the tilting device; the support structure for the tilting device is connected to the lifting device.

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