Photovoltaic glass calendering device

Abstract

The utility model discloses a kind of photovoltaic glass calendering devices, including pedestal, roller assembly and blowing device.Glass melt is forward after glass melt runner and lip brick, enters glass roller pressing area and is rolled, directly to lip brick and lower calendering roller area blowing by the blowing port of blowing device, air flow can directly cool down lip brick and lower calendering roller, to reduce the generation of glass sheet lower surface continuous bubble and line, and avoid glass melt when entering roller assembly, temperature is too low, to affect less to plate surface quality.

Description

Technical Field

[0001] This utility model relates to a rolling device, and more particularly to a photovoltaic glass rolling device. Background Technology

[0002] Photovoltaic glass can be manufactured using a calendering process. The furnace heats the raw materials into molten glass, which then flows out of the furnace overflow and enters the molten glass flow channel of the calendering unit. The molten glass moves along the flow channel, passing the retaining bricks and lip bricks before entering the glass rolling zone between the upper and lower rolling rollers. The upper and lower rolling rollers initially cool and shape the molten glass, rolling it into a molten glass sheet. This molten glass sheet then enters the next process for cooling into a solid glass sheet. During the glass sheet production process, defects such as continuous bubbles or streaks sometimes appear on the lower surface. One existing solution is to install a blower near the overflow outlet to blow air onto the molten glass flowing from the furnace, reducing the problem of continuous bubbles and streaks on the lower surface of the glass sheet. However, this can easily lead to the molten glass temperature being too low when entering the rolling assembly, causing problems such as rolling lines, which significantly affects the quality of the sheet surface. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a photovoltaic glass rolling device that can reduce continuous bubbles and streaks on the lower surface of the glass sheet, minimizing the impact on the quality of the sheet surface.

[0004] A photovoltaic glass rolling apparatus according to an embodiment of the present invention includes a base, a rolling assembly, and a blowing device. The base is provided with a glass melt flow channel and a lip brick. The glass melt flow channel extends in a front-to-back direction, and the lip brick is located at the front end of the glass melt flow channel. The rolling assembly is disposed on the base and located in front of the glass melt flow channel. The rolling assembly includes an upper rolling roller and a lower rolling roller. Both the upper and lower rolling rollers are rotatably disposed on the base with their rotation axes arranged in a left-to-right direction. The lower rolling roller is located below the upper rolling roller, and a glass rolling zone is formed between the upper and lower rolling rollers. The lower rolling roller and the lip brick are front-to-back opposite each other. The blowing device is disposed on the base and has an air outlet. The air outlet is lower than the glass rolling zone, and the air outlet's outlet direction is towards the lower rolling roller and the lip brick.

[0005] The photovoltaic glass rolling apparatus according to the present invention has at least the following beneficial effects: after the glass melt passes through the glass melt flow channel and the lip brick, it enters the glass rolling zone for rolling. The air blower directly blows air onto the lip brick and the lower rolling roller area through the air outlet of the air blowing device. The airflow can directly cool the lip brick and the lower rolling roller, thereby reducing the generation of continuous bubbles and lines on the lower surface of the glass sheet, and avoiding the glass melt entering the rolling assembly at too low a temperature, thus having a smaller impact on the quality of the sheet.

[0006] According to some embodiments of the present invention, the front end of the lip brick is a pointed tip, the front end of the lip brick is located between the upper calendering roller and the lower calendering roller, the lip brick and the outer peripheral surface of the lower calendering roller are arranged at intervals, an airflow channel is formed between the lip brick and the outer peripheral surface of the lower calendering roller, the upper end of the airflow channel is connected to the glass rolling zone, and the airflow blown out by the air outlet can enter the lower end of the airflow channel.

[0007] According to some embodiments of the present invention, the air outlet is located below the lower calendering roller, the air outlet is arranged facing upwards, and the air outlet is opposite to the end of the lower calendering roller near the lip brick.

[0008] According to some embodiments of the present invention, the base is provided with a retaining brick, the retaining brick is located on the upper side of the lip brick, the retaining brick is located at the front end of the glass melt flow channel, the retaining brick is opposite to the upper calendering roller, the front end of the retaining brick is a pointed tip, and the front end of the retaining brick is located between the upper calendering roller and the lower calendering roller.

[0009] According to some embodiments of the present invention, the air outlet is opposite to a portion of the lower calendering roller in the left-right direction.

[0010] According to some embodiments of the present invention, the blower includes a bracket, a blower component, and a locking structure. The bracket is placed on the base, the blower component is slidably disposed on the bracket in the vertical direction, the blower component has a blower outlet at its upper part and an air inlet at its upper part, and the locking structure is disposed between the bracket and the blower component and is used to lock or unlock the position of the blower component relative to the bracket.

[0011] According to some embodiments of the present invention, the bracket is provided with a sliding groove in the vertical direction, the blower is configured as a tube body, the blower is provided with a vertical tube segment extending in the vertical direction, the vertical tube segment is slidably connected to the sliding groove, the locking structure includes a threaded fastener, the groove wall of the sliding groove has a threaded through hole, the threaded fastener is threadedly connected to the threaded through hole and can abut against or loosen the vertical tube segment.

[0012] According to some embodiments of the present invention, the locking structure includes at least two threaded fasteners arranged at intervals in the vertical direction.

[0013] According to some embodiments of the present invention, the blower is configured as a tube body, and a horizontal tube section is provided at the upper part of the blower. The horizontal tube section is arranged in a horizontal direction, and at least two blow holes are arranged in the horizontal tube section along the length direction.

[0014] According to some embodiments of this utility model, at least two blower components are arranged at intervals.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of a photovoltaic glass rolling apparatus according to an embodiment of the present invention; Figure 2 This is a perspective view of the blower device according to an embodiment of the present utility model; Figure 3 This is an embodiment of the present utility model. Figure 2 A magnified view of a portion of point A.

[0017] Figure label: Glass melt flow channel 110, lip brick 120, edge retaining brick 130; Roll forming assembly 200, glass rolling zone 201, upper calendering roll 210, lower calendering roll 220; Blowing device 300, bracket 310, blowing component 320, blowing outlet 321, vertical pipe section 322, horizontal pipe section 323, locking structure 330; Airflow channel 400. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] Reference Figures 1 to 3 This invention relates to a photovoltaic glass rolling apparatus, comprising a base, a rolling assembly 200, and a blowing device 300. The base is provided with a glass melt flow channel 110 and a lip brick 120. The glass melt flow channel 110 extends in a front-to-back direction, and the lip brick 120 is located at the front end of the glass melt flow channel 110. The rolling assembly 200 is disposed on the base and located in front of the glass melt flow channel 110. The rolling assembly 200 includes an upper rolling roller 210 and a lower rolling roller 220, both of which are rotatably mounted on the base with their rotation axes along the left-right axis. The orientation is set such that the lower calendering roller 220 is located below the upper calendering roller 210, and a glass rolling zone 201 is formed between the upper calendering roller 210 and the lower calendering roller 220. The lower calendering roller 220 and the lip brick 120 are opposite each other. The blowing device 300 is set on the base and has a blowing port 321. The blowing port 321 is lower than the glass rolling zone 201, and the air outlet direction of the blowing port 321 is towards the lower calendering roller 220 and the lip brick 120.

[0023] After passing through the glass melt flow channel 110 and the lip brick 120, the molten glass enters the glass rolling zone 201 for rolling. Air is blown directly onto the lip brick 120 and the lower calendering roller 220 area through the air outlet 321 of the air blowing device 300. This airflow directly cools the lip brick 120 and the lower calendering roller 220, thereby reducing the generation of continuous bubbles and streaks on the lower surface of the glass sheet. It also prevents the molten glass from entering the rolling assembly 200 at excessively low temperatures, thus minimizing the impact on the sheet quality. This contributes to improving the overall yield rate of photovoltaic glass.

[0024] In the embodiments, reference is made to Figure 1The front end of the lip brick 120 is a pointed tip. The front end of the lip brick 120 is located between the upper calendering roller 210 and the lower calendering roller 220. The outer peripheral surfaces of the lip brick 120 and the lower calendering roller 220 are arranged at intervals. An airflow channel 400 is formed between the outer peripheral surfaces of the lip brick 120 and the lower calendering roller 220. The upper end of the airflow channel 400 is connected to the glass rolling area 201. The airflow blown out of the air outlet 321 can enter the lower end of the airflow channel 400.

[0025] The two side walls of the airflow channel 400 are formed by the lip brick 120 and the lower calendering roller 220, respectively. By setting the airflow channel 400, the airflow blown out by the blowing device 300 can enter the airflow channel 400 from the lower end of the airflow channel 400. During the airflow flow along the airflow channel 400, the lip brick 120 and the lower calendering roller 220 can be continuously cooled, which can increase the cooling contact area between the airflow and the lip brick 120 and the lower calendering roller 220. The remaining airflow is blown from the upper end of the airflow channel 400 to the lower surface of the glass melt, thereby further suppressing the risk of continuous bubbles or lines appearing on the lower surface of the glass sheet.

[0026] In the embodiments, reference is made to Figure 1 The air outlet 321 is located below the lower calendering roller 220 and faces upward. The air outlet 321 is opposite to the end of the lower calendering roller 220 near the lip brick 120, so that the air blown out by the air outlet 321 can cool the lip brick 120 and the lower calendering roller 220, and facilitate the airflow to enter the airflow channel 400 between the lip brick 120 and the lower calendering roller 220. The layout is ingenious and the cooling and blowing effect is good.

[0027] In the embodiments, reference is made to Figure 1 The base is provided with a retaining brick 130, which is located above the lip brick 120 and at the front end of the glass melt flow channel 110. The retaining brick 130 is opposite to the upper calendering roller 210, and its front end is pointed. The front end of the retaining brick 130 is located between the upper calendering roller 210 and the lower calendering roller 220. The retaining brick 130 is provided to limit the width of the glass melt entering the rolling assembly 200.

[0028] In the embodiments, reference is made to Figure 1 The air outlet 321 is opposite to a portion of the lower calendering roller 220 along the left-right direction. The aforementioned air blowing device 300 performs localized blowing on the lip brick 120, the lower calendering roller 220, and the glass melt according to the areas where continuous bubbles or lines are easily formed on the glass sheet. However, it does not blow on areas where continuous bubbles or lines are not easily formed on the glass sheet, thus avoiding an excessively large blowing area that would affect the overall quality of the glass sheet.

[0029] In the embodiments, reference is made to Figures 2 to 3The blowing device 300 includes a support 310, a blowing component 320, and a locking structure 330. The support 310 is mounted on a base, and the blowing component 320 is slidably mounted on the support 310 in the vertical direction. The upper part of the blowing component 320 has an air outlet 321, and the blowing component 320 also has an air inlet. The locking structure 330 is located between the support 310 and the blowing component 320 and is used to lock or unlock the position of the blowing component 320 relative to the support 310. The blowing component 320 can be adjusted in height, i.e., by adjusting the distance between the blowing component 320 and the lower calendering roller 220, to adjust the airflow force blowing onto the lip brick 120, the lower surface of the glass melt, and the lower calendering roller 220. This allows for flexible adjustment based on the current glass sheet production situation, effectively suppressing continuous bubbles on the lower surface of the glass sheet while minimizing the risks caused by blowing onto the glass melt. It offers good flexibility and a simple, easy-to-implement structure.

[0030] In the embodiments, reference is made to Figures 2 to 3 The bracket 310 has a sliding groove along the vertical direction. The blower 320 is configured as a tube body and has a vertical tube section 322 extending along the vertical direction. The vertical tube section 322 is slidably connected to the sliding groove. The locking structure 330 includes a threaded fastener. The groove wall has a threaded through hole. The threaded fastener is threadedly connected to the threaded through hole and can abut or loosen the vertical tube section 322. The blower 320 can slide up and down by sliding the vertical tube section 322 of the tube body itself to the sliding groove. The structure is simple and does not require an additional structure to achieve sliding fit. The locking structure 330 uses a threaded fastener. When tightened, the threaded fastener abuts against the vertical tube section 322, so that the threaded fastener and the groove wall clamp the vertical tube section 322, thereby locking the vertical height of the blower 320. When the threaded fastener is loosened, the vertical tube section 322 is allowed to slide up and down to adjust the height.

[0031] In the embodiments, reference is made to Figures 2 to 3 The locking structure 330 includes two threaded fasteners spaced apart in the vertical direction. These two fasteners abut against the vertical pipe section 322 of the same blower 320, providing a relatively secure lock and preventing the vertical pipe section 322 from shaking. It is conceivable that the locking structure 330 could also include three, four, or more threaded fasteners, which can be selected by those skilled in the art according to actual needs.

[0032] Specifically, threaded fasteners are screws, with a handle at one end for easy gripping and turning. It's understandable that threaded fasteners can also be, for example, bolts.

[0033] It is conceivable that in other embodiments, the blower 320 may also be of other shapes, such as a bellows; the blower 320 may also move up and down relative to the bracket 310 through a slide rail slider structure or a guide post guide sleeve structure, and the locking structure 330 may also be an elastic clamp, one side of which is fixedly installed on the bracket 310. When the elastic clamp is open, it allows the blower 320 to move up and down, and when the elastic clamp holds the blower 320, it locks the position of the blower 320.

[0034] It should be understood that the blower 300 also includes a compressed air pump or a fan, which delivers airflow from the air inlet to the blower 320 via a pipe.

[0035] It is conceivable that the blower 300 could also be a bellows combined with a fan.

[0036] In the embodiments, reference is made to Figures 2 to 3 The blower 320 is configured as a tube body, and a horizontal tube section 323 is provided at the upper part of the blower 320. The horizontal tube section 323 is arranged in a horizontal direction, and two or more air outlets 321 are arranged along the length direction of the horizontal tube section 323. The blower 320 described above facilitates uniform blowing of local areas, and the blowing effect is relatively good.

[0037] Specifically, the horizontal pipe section 323 can be arranged with two, three or more air outlets 321, which can be selected by those skilled in the art according to actual needs.

[0038] In the embodiments, reference is made to Figures 2 to 3 The blower element 320 is arranged in two spaced-apart configurations, thereby increasing the airflow sweeping range and airflow volume. It is conceivable that the blower device 300 could also have three or more blower elements 320, which can be selected by those skilled in the art according to actual needs.

[0039] Specifically, the bracket 310 is placed on the base and located below the lower calender roll 220. Production personnel can flexibly move the bracket 310 according to production needs to adjust the blowing and cooling position, making it flexible and reliable to use.

[0040] The dimensions of the blower 320 and the bracket 310 can be reasonably selected according to actual needs, and are not limited here. The size of the air outlet 321 and the distance between adjacent air outlets 321 can also be reasonably selected according to actual needs, and are not limited here.

[0041] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A photovoltaic glass rolling apparatus, characterized in that, include: The base is provided with a glass melt flow channel (110) and a lip brick (120). The glass melt flow channel (110) extends in the front-back direction, and the lip brick (120) is located at the front end of the glass melt flow channel (110). A roll forming assembly (200) is disposed on the base and located in front of the glass melt flow channel (110). The roll forming assembly (200) includes an upper calendering roll (210) and a lower calendering roll (220). The upper calendering roll (210) and the lower calendering roll (220) are rotatably disposed on the base with their rotation axes arranged in the left-right direction. The lower calendering roll (220) is located below the upper calendering roll (210). A glass roll forming zone (201) is formed between the upper calendering roll (210) and the lower calendering roll (220). The lower calendering roll (220) is opposite to the lip brick (120). A blowing device (300) is provided on the base. The blowing device (300) is provided with a blowing port (321). The blowing port (321) is lower than the glass rolling area (201). The air outlet of the blowing port (321) is directed toward the lower calendering roller (220) and the lip brick (120).

2. The photovoltaic glass rolling apparatus according to claim 1, characterized in that: The front end of the lip brick (120) is a pointed tip. The front end of the lip brick (120) is located between the upper calendering roller (210) and the lower calendering roller (220). The outer peripheral surfaces of the lip brick (120) and the lower calendering roller (220) are arranged at intervals. An airflow channel (400) is formed between the outer peripheral surfaces of the lip brick (120) and the lower calendering roller (220). The upper end of the airflow channel (400) is connected to the glass rolling area (201). The airflow blown out by the air outlet (321) can enter the lower end of the airflow channel (400).

3. The photovoltaic glass rolling apparatus according to claim 2, characterized in that: The air outlet (321) is located below the lower calendering roller (220), the air outlet (321) is arranged facing upward, and the air outlet (321) is opposite to the end of the lower calendering roller (220) near the lip brick (120).

4. The photovoltaic glass rolling apparatus according to claim 1, characterized in that: The base is provided with a retaining brick (130), which is located on the upper side of the lip brick (120) and at the front end of the glass melt flow channel (110). The retaining brick (130) is opposite to the upper calendering roller (210), and the front end of the retaining brick (130) is a pointed tip. The front end of the retaining brick (130) is located between the upper calendering roller (210) and the lower calendering roller (220).

5. The photovoltaic glass rolling apparatus according to claim 1, characterized in that: The air outlet (321) is opposite to a portion of the lower calendering roll (220) in the left-right direction.

6. The photovoltaic glass rolling apparatus according to claim 1, characterized in that: The blower device (300) includes a bracket (310), a blower (320), and a locking structure (330). The bracket (310) is placed on the base. The blower (320) is slidably disposed on the bracket (310) in the vertical direction. The blower (320) has an air outlet (321) at its upper part and an air inlet. The locking structure (330) is disposed between the bracket (310) and the blower (320) and is used to lock or unlock the position of the blower (320) relative to the bracket (310).

7. The photovoltaic glass rolling apparatus according to claim 6, characterized in that: The bracket (310) is provided with a sliding groove in the vertical direction. The blower (320) is configured as a tube body. The blower (320) is provided with a vertical tube section (322) extending in the vertical direction. The vertical tube section (322) is slidably connected to the sliding groove. The locking structure (330) includes a threaded fastener. The groove wall of the sliding groove has a threaded through hole. The threaded fastener is threadedly connected to the threaded through hole and can abut against or release the vertical tube section (322).

8. The photovoltaic glass rolling apparatus according to claim 7, characterized in that: The locking structure (330) includes at least two threaded fasteners spaced apart in the vertical direction.

9. The photovoltaic glass rolling apparatus according to claim 6, characterized in that: The blower (320) is configured as a tube body, and a horizontal tube section (323) is provided on the upper part of the blower (320). The horizontal tube section (323) is arranged in the horizontal direction, and at least two blow ports (321) are arranged in the length direction of the horizontal tube section (323).

10. The photovoltaic glass rolling apparatus according to claim 9, characterized in that: The blower (320) is arranged in at least two intervals.

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