Calender roll and calender

Abstract

The utility model relates to glass manufacturing equipment, and provides a calender roll and a calender, and the calender roll comprises a shaft core and a heat-resistant coating layer. Wherein the shaft core is internally provided with a cooling cavity through which cooling liquid passes, and the two ends of the shaft core are provided with a liquid inlet and a liquid outlet which are communicated with the cooling cavity respectively; and the heat-resistant coating layer comprises a plurality of ceramic fiber sheets which are stacked on the shaft core along the axial direction. The calendering roller provided by the utility model comprises a shaft core and a heat-resistant coating layer. Wherein the shaft core can provide support for the calendaring roller, the heat-resistant wrapping layer is attached to the outer periphery of the shaft core, and the heat-resistant wrapping layer is formed by hot pressing of a plurality of ceramic fiber sheets, so that the calendaring roller is resistant to high temperature and not prone to fracture and deformation when working at high temperature for a long time, and meanwhile certain hardness is guaranteed.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of glass manufacturing, and particularly relates to a calender roller and a calender. BACKGROUND

[0002] With the increasing demand for clean energy worldwide, the manufacturing and application of photovoltaic materials are of great significance in promoting the use of renewable energy and reducing the dependence on fossil fuels. Photovoltaic glass is an important component of solar photovoltaic power generation. The existing photovoltaic glass production process usually adopts an upper and lower pair of calender rollers to perform calendering and pulling on a high-temperature molten inclusion to form a glass plate with uniform thickness. The calender roller is the core component of the calendering production process. When the calender roller pair performs calendering operation on the high-temperature molten inclusion, the surface of the roller body of the calender roller needs to be in contact with the high-temperature molten glass for a long time. However, the existing calender roller is prone to deformation and fracture when working at high temperature for a long time, thereby affecting the flatness of the surface of the photovoltaic glass and the production quality of the photovoltaic glass. CONTENT OF THE INVENTION

[0003] One technical problem to be solved by the present disclosure is that the existing calender roller is prone to deformation and fracture when working at high temperature for a long time.

[0004] To solve the above technical problem, the present disclosure provides a calender roller and a calender.

[0005] In a first aspect, the present disclosure provides a calender roller, comprising:

[0006] a shaft core, the shaft core having a cooling cavity inside for passing cooling liquid, and the shaft core having a liquid inlet and a liquid outlet respectively connected to the cooling cavity at two ends thereof; and

[0007] a heat-resistant cladding layer, the heat-resistant cladding layer comprising a plurality of ceramic fiber sheets stacked along an axial direction on the shaft core.

[0008] In some embodiments, the calender roller further comprises:

[0009] a locking assembly, the locking assembly being arranged at two ends of the heat-resistant cladding layer and being locked and fixed with the shaft core to define an axial position of the heat-resistant cladding layer on the shaft core.

[0010] In some embodiments, the shaft core comprises:

[0011] a cooling portion, the cooling portion being arranged at a middle position of the shaft core, and an inner periphery of the heat-resistant cladding layer being fitted to an outer periphery of the cooling portion; and

[0012] a locking portion, the locking portion being arranged at two sides of the cooling portion;

[0013] the locking assembly comprises a locking member, and the locking member is threadedly connected with the locking portion.

[0014] In some embodiments, the locking assembly further comprises:

[0015] The stop ring is sleeved on the outer periphery of the shaft core, and two surfaces of the stop ring abut against the end surface of the heat-resistant cladding layer and the limiting surface of the locking member facing the heat-resistant cladding layer, respectively.

[0016] In some embodiments, the locking assembly comprises a plurality of locking members and a stop washer arranged between adjacent locking members.

[0017] In some embodiments, the hardness D of the heat-resistant cladding layer satisfies 35HD≤D≤40HD.

[0018] In some embodiments, the length H of the heat-resistant cladding layer and the width h of the glass plate to be manufactured satisfy h+20mm≤H≤h+60mm.

[0019] In some embodiments, the shaft core further comprises:

[0020] The connecting portion is arranged on the side of the locking portion away from the cooling portion.

[0021] In some embodiments, the connecting portion further has:

[0022] The connecting groove is used for connecting with the rack of the calender; and / or

[0023] The key groove is used for connecting with the rotating component on the rack of the calender.

[0024] In a second aspect, the present application provides a calender comprising the calender roller.

[0025] Through the above technical solution, the calender roller provided by the present application comprises a shaft core and a heat-resistant cladding layer. The shaft core can provide support for the calender roller. The shaft core has a cooling cavity, a liquid inlet and a liquid outlet therein, so that heat exchange between the shaft core and the calender roller can be achieved by the cooling liquid passing through the shaft core, thereby avoiding overheating of the calender roller. The cooling liquid passing through the shaft core also exchanges heat with the molten material, so that the molten material passing through the calender roller is rapidly cooled to form a glass plate. The heat-resistant cladding layer makes the calender roller provided by the present application resistant to high temperature, and is not prone to breaking and deforming when working at high temperature for a long time, while ensuring a certain hardness. The heat-resistant cladding layer comprises a plurality of ceramic fiber sheets stacked along the axial direction on the shaft core, so that the heat-resistant cladding layer disclosed in the embodiments of the present application is simple to manufacture, and the axial length of the heat-resistant cladding layer can be controlled by controlling the number of ceramic fiber sheets. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0027] Figure 1 is a structural schematic diagram of a calender roller disclosed by the embodiments of the present disclosure;

[0028] Figure 2 is a partial I of the calender roller shown in the enlarged schematic diagram; Figure 1

[0029] Figure 3 is a cross-sectional structural schematic diagram of the calender roller along the line A-A shown in; Figure 1

[0030] Figure 4 is another structural schematic diagram of the calender roller disclosed by the embodiments of the present disclosure;

[0031] Figure 5 is a cross-sectional structural schematic diagram of the calender roller along the line B-B shown in; Figure 4

[0032] Figure 6 is an enlarged schematic diagram of a partial II of the calender roller shown in; Figure 5

[0033] Figure 7 is an enlarged schematic diagram of a partial III of the calender roller shown in; Figure 4

[0034] Figure 8 is an enlarged schematic diagram of a partial IV of the calender roller shown in; Figure 4

[0035] Figure 9 is a structural schematic diagram of a calender disclosed by the embodiments of the present disclosure.

[0036] Explanation of reference signs:

[0037] 1, calender; 10, calender roller; 20, frame; 11, shaft core; 12, heat-resistant cladding layer; 13, locking assembly; 111, cooling part; 112, locking part; 120, ceramic fiber sheet; 113, connecting part; 131, locking piece; 132, locking piece; 133, retaining ring; 134, stop washer; 11a, cooling cavity; 11b, liquid inlet; 11c, liquid outlet; 12a, end face; 113a, connecting groove; 113b, key groove; 131a, limiting face. DETAILED DESCRIPTION ​​​​​​

[0038] The embodiments of the present disclosure will be described in further detail below with reference to the drawings and examples. The following detailed description of the examples and the accompanying drawings are provided to illustrate the principles of the present disclosure, and should not be taken in a limiting sense. The present disclosure can be implemented in numerous ways, including, but not limited to, the specific embodiments described in this document. Rather, any number of variations and modifications can be made to the described embodiments without departing from the scope of the present disclosure.

[0039] The present disclosure provides these examples in order to more completely illustrate the principles of the present disclosure and to enable one skilled in the art to make and use the disclosure. It is expressly noted, however, that the examples set forth in these examples are intended to be exemplary only and should not be construed as limiting the scope of the present disclosure in any way. Unless otherwise indicated, the relative arrangements of components and steps, the numerical expressions and numerical values set forth in the examples should not be construed as limiting the claimed embodiments.

[0040] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "a plurality of" is greater than or equal to two; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like is only for ease of description of the present disclosure and simplification of description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present disclosure. When the absolute position of the described object changes, the relative positional relationship can also change accordingly.

[0041] In addition, the "first", "second", and similar words used in the present disclosure do not indicate any order, number, or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable range of error. "Parallel" is not strictly parallel, but within the allowable range of error. "Include" or "contain" and similar words mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements.

[0042] It should also be noted that, in the description of the present disclosure, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be interpreted broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances. When it is described that a specific device is located between a first device and a second device, there can be an intermediate device between the specific device and the first device or the second device, or there can be no intermediate device.

[0043] All terms used in the present disclosure have the same meaning as understood by those of ordinary skill in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted to have meanings consistent with their meanings in the context of the relevant art, and should not be interpreted in an idealized or overly formalized sense, unless specifically defined herein.

[0044] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered part of the specification where appropriate.

[0045] See Figure 1 and Figure 2 , Figure 1 is a structural schematic diagram of a calendering roller disclosed by the embodiments of the present disclosure; Figure 2 is Figure 1 An enlarged schematic diagram of part I of the calendering roller shown in FIG. 1. The present application provides a calendering roller 10 comprising a shaft core 11 and a heat-resistant cladding layer 12. The shaft core 11 has a cooling cavity 11a inside for passing cooling liquid, and the shaft core 11 has a liquid inlet 11b and a liquid outlet 11c at both ends respectively, which are respectively connected to the cooling cavity 11a; the heat-resistant cladding layer 12 comprises a plurality of ceramic fiber sheets 120 stacked along the axial direction on the shaft core 11.

[0046] It can be understood that the calendering roller 10 disclosed by the embodiments of the present disclosure is applied to the calendering and drawing forming of high-temperature molten glass in the production and manufacturing of glass, especially the calendering and drawing forming of photovoltaic glass.

[0047] The calendering roller 10 comprises a shaft core 11. It can be understood that when the calendering roller 10 disclosed by the embodiments of the present disclosure is applied to glass calendering, two calendering rollers 10 are arranged in parallel and spaced apart on a rack 20, and the shaft cores 11 of the two calendering rollers 10 are driven by rotating parts outside the calendering rollers 10 to roll and rotate in opposite directions, thereby driving the two calendering rollers 10 to roll and rotate in opposite directions. The high-temperature molten glass flows out from the gap between the two rolling and rotating calendering rollers 10 and is quickly cooled to form a glass plate.

[0048] In some embodiments, the shaft core 11 is a cylindrical shaft core. The shaft core 11 can be, but is not limited to, a heat-resistant metal shaft core. The heat-resistant metal shaft core can be, but is not limited to, a heat-resistant steel shaft core. It can be understood that the above is an example of the material selection of the shaft core 11 of the embodiments of the present application, and should not be understood as a limitation of the material selection of the shaft core 11 of the embodiments of the present application. The shaft core 11 provided by the embodiments of the present application can also be other heat-resistant non-metallic shaft cores with certain hardness.

[0049] The shaft core 11 has a cooling cavity 11a inside for cooling by cooling liquid, and the shaft core 11 has a liquid inlet 11b and a liquid outlet 11c at both ends respectively, which are communicated to the cooling cavity 11a respectively. It can be understood that when the calendering roller 10 disclosed in the embodiment of the present disclosure is applied to the calendering of glass, the cooling liquid enters the cooling cavity 11a of the shaft core 11 through the liquid inlet 11b, exchanges heat with the calendering roller 10 and the high-temperature glass in contact with the calendering roller 10, and the cooled cooling liquid flows out of the liquid outlet 11c of the calendering roller 10.

[0050] The calendering roller 10 comprises a heat-resistant cladding layer 12, which comprises a plurality of ceramic fiber sheets 120 stacked along the axial direction on the shaft core 11. It can be understood that the heat-resistant cladding layer 12 wraps the shaft core 11 of the calendering roller 10, and the inner periphery of the heat-resistant cladding layer 12 is attached to the outer periphery of the shaft core 11. It can be understood that the ceramic fiber sheet 120 is a ring-shaped ceramic fiber sheet, which is tightly attached to the outer periphery of the shaft core 11 face to face and is pressed tightly to form the heat-resistant cladding layer 12. It can be understood that the radial dimension of the heat-resistant cladding layer 12 can be determined according to the specific processing needs of the photovoltaic glass to be manufactured.

[0051] In order to more clearly illustrate the beneficial effects of the present embodiment, the related art is introduced. The calendering roller in the related art is composed of a roller shaft and a roller body arranged inside the roller body, wherein the roller body is a metal roller body, usually a cast iron roller body or made of 20CrNiMo and the like. At the same time, since the metal roller body has the characteristic of not being resistant to high temperature, in order to prevent the temperature of the roller body from being transmitted to the roller shaft, causing the temperature of the roller shaft to be too high and deforming and the like, the roller shaft and the roller body in the related art are not attached, the roller shaft has a cooling chamber for passing cooling liquid, and the peripheral side surface of the roller shaft is provided with a plurality of water outlets. The cooling liquid in the cooling chamber of the roller shaft is sprayed to the inner surface of the roller body through the water outlets, thereby cooling and dissipating heat for the roller body.

[0052] However, the related art has the following problems. The roller body of the calendering roller is not resistant to high temperature, so it is easy to deform and break when in contact with high-temperature molten glass for a long time, affecting the flatness of the surface of the manufactured photovoltaic glass and reducing the quality of the manufactured photovoltaic glass. At the same time, since the roller shaft and the roller body in the related art are not attached, the water outlets on the roller shaft spray cooling liquid to cool and cool the roller body, so that the cooling effect of the calendering roller in the related art is not good. The cooling liquid in the roller body is concentrated in the lower part of the roller body, resulting in a large temperature deviation between the upper and lower parts of the roller body, and the calendering roller is prone to bending. Some calendering rollers are provided with a water distribution core inside the roller body and outside the roller shaft to distribute the cooling liquid inside the roller body and outside the roller shaft to weaken the phenomenon of "hot upper and cold lower" of the calendering roller in the related art. However, the water distribution core is prone to rot and aging, and frequent installation and removal is inconvenient.

[0053] The calendering roller 10 disclosed by the embodiments of the present disclosure comprises a heat-resistant cladding layer 12. The heat-resistant cladding layer 12 avoids the problem of deformation and fracture of the roller body in the related art due to the poor high-temperature resistance. Meanwhile, the heat-resistant cladding layer 12 is attached to the shaft core 11, so that the calendering roller 10 disclosed by the embodiments of the present disclosure can be uniformly heat-exchanged with the heat-resistant cladding layer 12 without setting the cooling liquid in the shaft core 11, thereby avoiding the phenomenon of "hot on the top and cold on the bottom" of the roller body in the related art. The heat-resistant cladding layer 12 comprises a plurality of ceramic fiber sheets 120 stacked along the axial direction on the shaft core 11, and also makes the heat-resistant cladding layer 12 disclosed by the embodiments of the present disclosure simple to manufacture, and the axial length of the heat-resistant cladding layer 12 can be controlled by controlling the number of the ceramic fiber sheets 120.

[0054] In summary, through the above technical solutions, the calendering roller 10 provided by the present disclosure comprises a shaft core 11 and a heat-resistant cladding layer 12. The shaft core 11 can provide support for the calendering roller 10, and the shaft core 11 has a cooling cavity 11a, a liquid inlet 11b and a liquid outlet 11c, so that the shaft core 11 can be heat-exchanged with the calendering roller 10 by the cooling liquid inside the shaft core 11, thereby avoiding overheating of the calendering roller 10. The cooling liquid passing through the shaft core 11 is also heat-exchanged with the molten glass, so that the molten glass passing through the calendering roller 10 is rapidly cooled to form a glass plate. The heat-resistant cladding layer 12 makes the calendering roller 10 provided by the present disclosure resistant to high temperature, and less likely to be broken or deformed when working at high temperature for a long time, while also ensuring a certain hardness. The heat-resistant cladding layer 12 comprises a plurality of ceramic fiber sheets 120 stacked along the axial direction on the shaft core 11, so that the heat-resistant cladding layer 12 disclosed by the embodiments of the present disclosure is simple to manufacture, and the axial length of the heat-resistant cladding layer 12 can be controlled by controlling the number of the ceramic fiber sheets 120.

[0055] Please refer to Figure 3 and Figure 4 , Figure 3 is Figure 1 the cross-sectional structure schematic diagram of the calendering roller along the A-A line; Figure 4 is another structure schematic diagram of the calendering roller disclosed by the embodiments of the present disclosure. In some embodiments, the calendering roller 10 further comprises a locking assembly 13. The locking assembly 13 is arranged at both ends of the heat-resistant cladding layer 12 and is locked and fixed with the shaft core 11 to define the axial position of the heat-resistant cladding layer 12 on the shaft core 11.

[0056] The locking assembly 13 is arranged at both ends of the heat-resistant cladding layer 12 and is locked and fixed with the shaft core 11. It can be understood that the locking assembly 13 is fixedly connected with the shaft core 11, and the side of the locking assembly 13 facing the heat-resistant cladding layer 12 elastically abuts against the end surface 12a of the heat-resistant cladding layer 12, so that the plurality of ceramic fiber sheets 120 of the heat-resistant cladding layer 12 are tightly attached to each other to form an integral heat-resistant cladding layer 12 under the extrusion of the two sets of fastening assemblies.

[0057] In some embodiments, the heat-resistant coating layer 12 can be connected with the shaft core 11 by the locking assembly 13 in an interference fit.

[0058] The calender roll 10 of some embodiments of the present application is locked and fixed with the shaft core 11 by the locking assembly 13 arranged at both ends of the heat-resistant coating layer 12, so as to realize the locking and fixing of the heat-resistant coating layer 12 and the shaft core 11, and make the plurality of ceramic fiber sheets 120 tightly adhere to form a whole heat-resistant coating layer 12.

[0059] Please refer again to Figure 4 , and refer to Figure 5 , Figure 5 is Figure 4 the cross-sectional structure schematic view of the calender roll shown along the line B-B. In some embodiments, the shaft core 11 includes a cooling portion 111 and a locking portion 112, and the locking assembly 13 includes locking members 131 and 132. The cooling portion 111 is arranged at the middle position of the shaft core 11, and the inner periphery of the heat-resistant coating layer 12 is attached to the outer periphery of the cooling portion 111; the locking portion 112 is arranged at both sides of the cooling portion 111. The locking members 131 and 132 are threadedly connected with the locking portion 112.

[0060] The cooling portion 111 is arranged at the middle position of the shaft core 11, and the inner periphery of the heat-resistant coating layer 12 is attached to the outer periphery of the cooling portion 111. It can be understood that the cooling cavity 11a is located inside the cooling portion 111, and the heat-resistant coating layer 12 is attached to the cooling portion 111 and exchanges heat with the cooling liquid in the cooling cavity 11a inside the cooling portion 111, so as to realize the cooling and heat dissipation of the calender roll 10, and further realize the heat exchange between the molten glass on the surface of the calender roll 10 and the cooling liquid in the cooling cavity 11a inside the cooling portion 111 when the calender roll 10 is applied to glass manufacturing, so that the molten glass passing through the calender roll 10 is rapidly cooled to form a glass sheet.

[0061] It can be understood that the cooling liquid in the present application can be but not limited to cooling water, and can also be other cooling media.

[0062] The locking portion 112 is arranged at both sides of the cooling portion 111, and the locking members 131 and 132 are threadedly connected with the locking portion 112. It can be understood that the locking members 131 and 132 disclosed in the present application can be but not limited to nuts, and can also be other components with matching threads. In some embodiments, the connecting portion 113 has external threads, the locking members 131 and 132 have internal threads, and the connecting portion 113 and the locking members 131 and 132 are connected by the external threads and the internal threads.

[0063] In some embodiments, the locking member 131 has a limiting surface 131a facing the heat-resistant coating layer 12, and the limiting surface 131a of the locking member 131 abuts against the end surface 12a of the heat-resistant coating layer 12, so as to achieve the fixed connection between the heat-resistant coating layer 12 and the shaft core 11, and further make the plurality of ceramic fiber sheets 120 tightly adhere to form an integral heat-resistant coating layer 12.

[0064] The shaft core 11 of some embodiments of the present application comprises a cooling portion 111 and a locking portion 112. The cooling portion 111 is used to achieve the cooling and heat dissipation of the calender roller 10 by the cooling liquid, so as to avoid the damage of the calender roller 10 caused by overheating, and further make the molten material pass through the calender roller 10 to form a glass sheet by rapid cooling. The locking portion 112 is threadedly connected with the locking members 131, 132 in the locking assembly, so as to achieve the fixed connection between the heat-resistant coating layer 12 and the shaft core 11.

[0065] Please refer again to Figure 5 and refer to Figure 6 , Figure 6 is Figure 5 the enlarged schematic view of the partial II of the calender roller shown in FIG. 1. In some embodiments, the locking assembly 13 further comprises a stop ring 133. The stop ring 133 is sleeved on the outer periphery of the shaft core 11, and the two surfaces of the stop ring 133 respectively abut against the end surface 12a of the heat-resistant coating layer 12 and the limiting surface 131a of the locking member 131 facing the heat-resistant coating layer 12.

[0066] The locking assembly 13 further comprises a stop ring 133. In some embodiments, the stop ring 133 is a soft stop ring, and the stop ring 133 can be but is not limited to a rubber stop ring, a silica gel stop ring or other elastic deformation stop ring. In some embodiments, the stop ring 133 is a hard stop ring, and the stop ring 133 can be but is not limited to a metal stop ring, a resin stop ring or other stop ring 133 with a certain hardness. The above is an example of the material of the stop ring 133 provided by some embodiments of the present application, and is not understood as a limitation of the material of the stop ring 133 provided by some embodiments of the present application.

[0067] In some embodiments, the radial dimension of the stop ring 133 can be but is not limited to greater than the radial dimension of the locking members 131, 132.

[0068] The two surfaces of the stop ring 133 provided by some embodiments of the present application respectively abut against the end surface 12a of the heat-resistant coating layer 12 and the limiting surface 131a of the locking member 131 facing the heat-resistant coating layer 12, so that the locking members 131, 132 are not in direct contact with the heat-resistant coating layer 12, and the stress between the locking members 131, 132 and the heat-resistant coating layer 12 is avoided to be too large to cause the damage of the heat-resistant coating layer 12 or the thread disengagement between the locking members 131, 132 and the locking portion 112.

[0069] Please refer again to Figure 5 andFigure 6 In some embodiments, the locking assembly 13 comprises a plurality of locking members 131, 132 and a stop washer 134 disposed between adjacent locking members 131, 132.

[0070] It is appreciated that the number of locking members 131, 132 can be 2, 3, 4 or more than 4, and the number of locking members 131, 132 is not limited herein.

[0071] The stop washer 134 is disposed between adjacent locking members 131, 132. In some embodiments, two surfaces of the stop washer 134 respectively abut the surfaces of the adjacent locking members 131, 132 facing the stop washer 134.

[0072] The plurality of locking members of some embodiments of the present application can prevent a single locking member 131, 132 from failing to disengage from the locking portion 112, thereby ensuring the quality of the calendar roll 10. The stop washer 134 disposed between adjacent locking members 131, 132 can prevent the adjacent two locking members 131, 132 from directly sliding against each other, thereby increasing the stability of the locking assembly 13.

[0073] Please refer to Figure 1 , Figure 2 and Figure 3 again. In some embodiments, the hardness D of the heat-resistant coating layer 12 satisfies 35HD≤D≤40HD.

[0074] It is appreciated that when the hardness D of the heat-resistant coating layer 12 is less than 35HD, the heat-resistant coating layer 12 of the calendar roll 10 is too soft to effectively calender the molten glass. It is appreciated that when the hardness D of the heat-resistant coating layer 12 is greater than 40HD, the heat-resistant coating layer 12 of the calendar roll 10 is too hard to cause damage to the manufactured glass sheet, resulting in glass fragments.

[0075] In some embodiments, the hardness of the heat-resistant coating layer 12 is adjusted by preheating the ceramic fiber sheet 120.

[0076] The hardness D of the heat-resistant coating layer 12 of some embodiments of the present application satisfies 35HD≤D≤40HD, so that the calendar roll 10 disclosed in the present application can effectively form the molten glass, while avoiding the calendar roll 10 being too hard to cause glass fragments.

[0077] Please refer to Figure 1 , Figure 2 and Figure 3 again. In some embodiments, the length H of the heat-resistant coating layer 12 and the width h of the glass sheet to be manufactured satisfy h+20mm≤H≤h+60mm.

[0078] It can be understood that when the length H of the heat-resistant coating layer 12 is less than h+20mm, the heat-resistant coating layer 12 of the calendering roller 10 is too short to effectively calender the molten glass, and the molten glass is prone to flow to both sides of the heat-resistant coating layer 12. It can be understood that when the length H of the heat-resistant coating layer 12 is greater than h+60mm, the heat-resistant coating layer 12 of the calendering roller 10 is too long, which not only occupies more production space but also affects the production quality of the glass sheet.

[0079] It can be understood that the axial length of the heat-resistant coating layer 12 can be controlled by controlling the number of ceramic fiber sheets 120 during the manufacture of the calendering roller 10 disclosed in the present application.

[0080] The length H of the heat-resistant coating layer 12 of some embodiments of the present application satisfies h+20mm≤H≤h+60mm with the width h of the glass sheet to be manufactured, so that the calendering roller 10 disclosed in the present application can ensure the production quality of the glass.

[0081] Please refer to Figure 4 and Figure 5 In some embodiments, the shaft core 11 further comprises a connecting portion 113, which is arranged on the side of the locking portion 112 away from the cooling portion 111.

[0082] It can be understood that the calendering roller 10 disclosed in the present application comprises two connecting portions 113, which are respectively arranged on the sides of the two locking portions 112 away from the cooling portion 111.

[0083] In some embodiments, the radial dimension of the connecting portion 113 of the shaft core 11 is smaller than the radial dimension of the cooling portion 111 of the shaft core 11; wherein the radial dimension of the connecting portion 113 of the shaft core 11 can be but is not limited to smaller than the radial dimension of the locking portion 112 of the shaft core 11.

[0084] It can be understood that when the calendering roller 10 disclosed in the present application is applied to calendering of glass, the upper and lower calendering rollers 10 are arranged in parallel and at intervals on the rack 20, and the shaft cores 11 of the two calendering rollers 10 are driven by the rotating components outside the calendering rollers to roll and rotate in opposite directions, thereby driving the two calendering rollers 10 to roll and rotate in opposite directions. It can be understood that the connecting portion 113 of the shaft core 11 is used to connect with the rack 20 or rotating components and other components outside the calendering roller 10 to jointly constitute the calendering machine 1 for calendering the molten glass to realize the manufacture of glass.

[0085] The connecting portion 113 of the shaft core 11 of some embodiments of the present application can realize the connection of the calendering roller 10 disclosed in the present application with the rack 20 or rotating components and other components outside the calendering roller.

[0086] Please refer to Figure 4 and refer to Figure 7 and Figure 8 ,Figure 7 is Figure 4 is an enlarged schematic view of a partial III of the calender roll shown in Figure 8 is Figure 4 is an enlarged schematic view of a partial IV of the calender roll shown in. In some embodiments, the connecting part 113 further has a connecting groove 113a and / or a key groove 113b. The connecting groove 113a is used to connect with the frame 20 of the calender 1, and the key groove 113b is used to connect with a rotating part on the frame 20 of the calender 1.

[0087] The connecting part 113 further has a connecting groove 113a, which in some embodiments is an annular groove arranged around the outer periphery of the connecting part 113.

[0088] It can be understood that the number of connecting grooves 113a can be one or more. It can be understood that the calender roll 10 disclosed in the present application includes two connecting parts 113, which are respectively arranged on the sides of the two locking parts 112 away from the cooling part 111; the connecting groove 113a of the connecting part 113 can be arranged on one of the two connecting parts 113, or a connecting groove 113a can be arranged on each of the two connecting parts.

[0089] It can be understood that the number of key grooves 113b can be one or more. It can be understood that the calender roll 10 disclosed in the present application includes two connecting parts 113, which are respectively arranged on the sides of the two locking parts 112 away from the cooling part 111; the key groove 113b of the connecting part 113 can be arranged on one of the two connecting parts 113, or a key groove 113b can be arranged on each of the two connecting parts.

[0090] The connecting groove of some embodiments of the present application can achieve the connection of the calender roll 10 disclosed in the present application with the frame 20 outside the calender roll; and the key groove 113b can achieve the connection of the calender roll 10 disclosed in the present application with a rotating part outside the calender roll.

[0091] Please refer again to Figure 4 and Figure 5 , and refer to Figure 9 , Figure 9 is a structural schematic view of the calender disclosed in the embodiments of the present application. The present application provides a calender 1, which includes the calender roll 10 described above.

[0092] It can be understood that the calender 1 disclosed in the embodiments of the present application is applied to the calendering and drawing forming of high-temperature molten glass in the production and manufacturing of glass, and is particularly applied to the calendering and drawing forming of photovoltaic glass.

[0093] The calender 1 comprises a calender roller 10. Understandably, the calender 1 disclosed by the embodiments of the present disclosure comprises two calender rollers 10. When the calender 1 disclosed by the embodiments of the present disclosure is applied to calendering of glass, the upper and lower calender rollers 10 are arranged in parallel and at intervals, the shaft cores 11 of the two calender rollers 10 rotate in opposite directions to drive the two calender rollers 10 to rotate in opposite directions. The high-temperature molten glass flows out from the gap between the two rotating calender rollers 10 and is rapidly cooled to form a glass sheet.

[0094] In some embodiments, the calender 1 disclosed by the embodiments of the present disclosure further comprises a rack 20, the upper and lower calender rollers 10 are arranged in parallel and at intervals on the rack 20, and can rotate relative to the rack with the shaft core of the calender roller 10 as the axis.

[0095] In some embodiments, the calender 1 disclosed by the embodiments of the present disclosure further comprises a rotating component, which is connected to the shaft core 11 to drive the shaft core to rotate with the shaft core of the calender roller 10 as the axis.

[0096] In some embodiments, the calender 1 disclosed by the embodiments of the present disclosure further comprises a cooling circulating device, which is connected to the liquid inlet 11b and the liquid outlet 11c of the shaft core 11 respectively, and is used for introducing cooling liquid into the cooling cavity 11a and receiving the cooling liquid that exchanges heat with the calender roller 10.

[0097] The calender 1 disclosed by the embodiments of the present disclosure comprises a calender roller 10, which comprises a shaft core 11 and a heat-resistant cladding layer 12. The shaft core has a cooling cavity 11a, a liquid inlet 11b and a liquid outlet 11c inside, which can realize cooling of the calender roller 10 by cooling liquid inside the shaft core 11, and cooling of the molten glass at the same time. The heat-resistant cladding layer 12 makes the calender roller 10 provided by the embodiments of the present disclosure resistant to high temperature. The calender 1 provided by the embodiments of the present disclosure can work at high temperature for a long time without breaking or deforming the calender roller 10, and the manufactured glass is flat and of high quality.

[0098] So far, the embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein according to the above description.

[0099] Although some specific embodiments of the present disclosure have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration, not for limiting the scope of the present disclosure. Those skilled in the art should understand that the above embodiments can be modified or some technical features can be replaced equivalently without departing from the scope and spirit of the present disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way.

Claims

1. A calender roll (10) characterized in that, The calender roller (10) comprises: a shaft core (11) having a cooling cavity (11a) inside for cooling by cooling liquid, the shaft core (11) having an inlet (11b) and an outlet (11c) at two ends respectively, the inlet (11b) and the outlet (11c) being communicated with the cooling cavity (11a) respectively; and a heat-resistant cladding layer (12) comprising a plurality of ceramic fiber sheets (120) stacked along an axial direction on the shaft core (11).

2. The calender roll (10) according to claim 1, characterized in that The calender roller (10) further comprises: a locking assembly (13) arranged at two ends of the heat-resistant cladding layer (12) and fixedly locked with the shaft core (11) to define an axial position of the heat-resistant cladding layer (12) on the shaft core (11).

3. The calender roll (10) according to claim 2, characterized in that The shaft core (11) comprises: a cooling portion (111) arranged at a middle position of the shaft core (11), an inner periphery of the heat-resistant cladding layer (12) being fitted to an outer periphery of the cooling portion (111); and locking portions (112) arranged at two sides of the cooling portion (111); The locking assembly (13) comprises locking members (131, 132) threadedly connected with the locking portions (112).

4. The calender roll (10) according to claim 3, characterized in that The locking assembly (13) further comprises: a retaining ring (133) sleeved on an outer periphery of the shaft core (11), two surfaces of the retaining ring (133) being respectively abutted against an end surface (12a) of the heat-resistant cladding layer (12) and a limiting surface (131a) of the locking member (131) facing the heat-resistant cladding layer (12).

5. The calender roll (10) according to claim 3, characterized in that The locking assembly (13) comprises a plurality of the locking members (131, 132) and a stop washer (134) arranged between adjacent locking members (131, 132).

6. The calender roller (10) according to claim 1, wherein a hardness D of the heat-resistant cladding layer (12) satisfies 35HD≤D≤40HD.

7. The calender roller (10) according to claim 1, wherein a length H of the heat-resistant cladding layer (12) and a width h of a glass sheet to be manufactured satisfy h+20mm≤H≤h+60mm.

8. The calender roll (10) according to claim 3, characterized in that The shaft core (11) further comprises: a connecting portion (113) arranged at a side of the locking portion (112) away from the cooling portion (111).

9. The calender roll (10) according to claim 8, characterized in that The connecting portion (113) further has: a connecting groove (113a) for connecting with a rack of a calender machine; and / or a key groove (113b) for connecting with a rotating component on the rack of the calender machine.

10. A calender (1) characterized in that, The calender roller (10) according to any one of claims 1-9.

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