CN114524604A - Forming equipment for tubular glass - Google Patents

Abstract

The present disclosure relates to a forming equipment for tubular glass, the forming equipment comprises a liquid supply device (1), an overflow bin (2) and a forming part (3), the liquid supply device (1) and the overflow The silo (2) is communicated and is used to supply molten glass to the overflow silo (2), the overflow silo (2) has a liquid storage chamber (21) for accommodating the molten glass, and the molding (3) ) into the liquid storage chamber (21), and includes a forming hole (30) extending in the vertical direction and closed in the circumferential direction, the forming part (3) having a forming hole (30) at the upper end The feeding port (31) and the discharging port (32) at the lower end are provided above the bottom surface of the liquid storage chamber (21). The molding equipment involved in the present disclosure can produce tubular glass by an overflow method.

Description

Forming equipment for tubular glass

technical field

The present disclosure relates to the field of glass processing equipment, in particular, to a molding equipment for tubular glass.

Background technique

The overflow method to produce ultra-thin electronic glass is a hot technology in the current ultra-thin electronic glass manufacturing. Compared with other glass production technologies, the overflow method has technical advantages such as high temperature resistance, high precision, and ultra-thinness. In the prior art, the shape of the glass produced by the overflow method is all flat glass, while other glass manufacturing technologies have been used for tube glass such as vials and round tube lamps. Material transformation, the use of overflow method to manufacture tubular glass is the future development trend.

SUMMARY OF THE INVENTION

The purpose of the present disclosure is to provide a molding equipment for tubular glass, which can produce tubular glass by an overflow method.

In order to achieve the above purpose, a molding equipment for tubular glass is provided. The molding equipment includes a liquid supply device, an overflow bin and a forming part. The liquid supply device is communicated with the overflow bin and is used for the overflow. The flow bin supplies molten glass, the overflow bin has a liquid storage cavity for containing the molten glass, the molding protrudes into the liquid storage cavity, and includes a vertically extending and circumferentially closed A forming hole, the forming part has a feeding port at the upper end of the forming hole and a discharging port at the lower end, and the feeding port is set higher than the bottom surface of the liquid storage chamber.

Optionally, the upper edge of the molded part at the feed port is flush in the horizontal direction.

Optionally, the overflow bin has a feed port that communicates with the liquid supply device and the liquid storage cavity, and the feed port is located above the feed port.

Optionally, the liquid supply device includes a liquid storage tank for accommodating the molten glass, the liquid supply device further includes a liquid supply pipe connecting the liquid storage tank and the overflow tank, the liquid storage tank. The silo is located above the overflow silo, and the forming equipment is configured to: when the liquid storage silo supplies molten glass to the overflow silo, the molten glass in the liquid storage chamber enters the forming hole During the process, the liquid level of the molten glass in the liquid container remains unchanged.

Optionally, the molding equipment further includes a heating device, the liquid supply device includes a liquid supply pipe connected to the overflow bin, and the heating device is used for heating the liquid supply pipe and the liquid storage cavity. of molten glass.

Optionally, the heating device includes a heating element disposed near the connection between the liquid supply pipe and the overflow bin, and a plurality of heating elements disposed around the overflow bin.

Optionally, the molding equipment further includes a heat preservation cover, the heat preservation cover is arranged on the outer side of the overflow bin, and the plurality of heating elements are all located in the heat preservation cover.

Optionally, the forming equipment includes a cooling device, and the cooling device is arranged below the discharge port and has a channel for the glass tube flowing out of the forming hole to pass through.

Optionally, the cooling device includes a cooling member, and the cooling member is configured as a cooling pipe spirally wound along a central axis of the forming hole, and the cooling pipe is wound with the channel.

Optionally, the cooling device is spaced apart from the overflow bin, the molding has an outer end portion extending out of the overflow bin, and the outer end portion extends to the upper side of the channel, so The forming hole extends to the distal end of the outer end portion.

Through the above technical solutions, in the tubular glass forming equipment provided by the present disclosure, the liquid supply device supplies molten glass into the liquid storage cavity. Since the feeding port is higher than the bottom surface of the liquid storage cavity, the The molten glass can enter the forming hole through the feeding port by overflowing. Since the forming hole is circumferentially closed and extends in the vertical direction, the molten glass entering the forming hole can gradually flow downward along the hole wall of the forming hole. Then, the tubular glass is formed through the forming hole, and the forming hole overflows from the discharge port. Therefore, the forming apparatus of the present disclosure can produce the tubular glass by the overflow method.

Other features and advantages of the present disclosure will be described in detail in the detailed description that follows.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present disclosure, and constitute a part of the specification, and together with the following detailed description, are used to explain the present disclosure, but not to limit the present disclosure. In the attached image:

FIG. 1 is a partial structural schematic diagram of a tubular glass forming apparatus provided in an embodiment of the present disclosure.

Description of reference numerals

1-Liquid supply device, 11-Liquid storage bin, 2-Overflow bin, 21-Liquid storage cavity, 22-Feed inlet, 3-Moulded parts, 30-Moulded hole, 31-Feed inlet, 32-Discharge Port, 33-outer end part, 4-liquid supply pipe, 5-heating device, 6-cooling device.

Detailed ways

The specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure, but not to limit the present disclosure.

In the present disclosure, unless otherwise stated, directional words such as "up and down" generally refer to "up and down" in the direction of gravity when the corresponding component is in use, and "inside and outside" are "Inside and outside" relative to the contour of the corresponding part itself. Furthermore, in the following description, when referring to the drawings, unless otherwise explained, the same reference numerals in different drawings refer to the same or similar elements. The above definitions are only used to explain and illustrate the present disclosure, and should not be construed as limiting the present disclosure. In addition, the arrows in the molding equipment in FIG. 1 refer to the flow direction of the molten glass, which will not be repeated in the following embodiments of the present disclosure.

Referring to FIG. 1 , in order to achieve the above purpose, the present disclosure provides a molding equipment for tubular glass, the molding equipment includes a liquid supply device 1 , an overflow bin 2 and a molded part 3 , the liquid supply device 1 and the overflow bin 2 is connected, and is used to supply molten glass to the overflow bin 2, the overflow bin 2 has a liquid storage cavity 21 for accommodating molten glass, and the molding 3 extends into the liquid storage cavity 21, and includes a The molding hole 30 is closed in the circumferential direction, and the molding 3 has a feeding port 31 at the upper end of the molding hole 30 and a discharging port 32 at the lower end.

Through the above technical solutions, in the forming equipment for tubular glass provided by the present disclosure, the liquid supply device 1 supplies the molten glass into the liquid storage cavity 21. Since the feeding port 31 is higher than the bottom surface of the liquid storage cavity 21, the The molten glass in the liquid storage chamber 21 can enter the forming hole 30 through the feeding port 31 by overflowing. Since the forming hole 30 is circumferentially closed and extends in the vertical direction, the molten glass entering the forming hole 30 can be formed along the forming hole 30. The hole wall of the hole 30 flows downward gradually, thereby forming a tubular glass through the forming hole 30 , and overflowing the forming hole 30 from the discharge port 32 . Therefore, the forming apparatus of the present disclosure can produce the tubular glass by the overflow method.

In some embodiments, the cross section of the forming hole 30 can be circular, and the molten glass overflowing from the forming hole 30 is produced as a round tubular glass tube. Of course, the cross section of the forming hole 30 can also be other shapes, such as square Or polygons, etc., to meet the production and processing of glass tubes with different cross-sectional shapes.

As an optional embodiment, as shown in FIG. 1 , the upper edge of the molding 3 at the feed port 31 is flush in the horizontal direction. In this way, the edges of the molding part 3 at the feeding port 31 are flush in the horizontal direction, so that the molten glass can flow down simultaneously along the circumferential direction of the hole wall of the molding hole 30 to ensure the quality of the glass products.

As an optional embodiment, as shown in FIG. 1 , the overflow bin 2 has a feed port 22 that communicates with the liquid supply device 1 and the liquid storage chamber 21 , and the feed port 31 is located above the feed port 22 . Here, the feeding port 31 is located above the feeding port 22, so the molten glass entering from the feeding port 22 will not flow directly into the forming hole 30, but will continuously store liquid in the liquid storage chamber 21 until the liquid storage chamber 21 When the liquid level of the molten glass reaches the feeding port 31, the molten glass begins to overflow downward along the hole wall of the molding hole 30, so that the molten glass can smoothly overflow from the circumferential direction of the hole wall of the molding hole 30 to ensure the safety of the glass products. quality.

As an optional implementation, referring to FIG. 1 , the liquid supply device 1 includes a liquid container 11 for accommodating molten glass, and the liquid supply device 1 further includes a supply for connecting the liquid container 11 and the overflow bin 2 . The liquid pipe 4, the liquid storage chamber 11 is located above the overflow chamber 2, and the molding equipment is configured such that when the liquid storage chamber 11 supplies molten glass to the overflow chamber 2, the molten glass in the liquid storage chamber 21 enters the molding hole 30. During the process, the liquid level of the molten glass in the liquid container 11 remains unchanged. Here, if the liquid level height of the molten glass in the liquid container 11 remains unchanged, the liquid level difference between the molten glass in the liquid container 11 and the molten glass in the liquid storage chamber 21 remains unchanged, and overflows from the forming hole 30 The amount of molten glass can be kept consistent, so as to effectively control the output quality of tubular glass.

Further, the liquid container 11 is communicated with the kiln, and the kiln is used to melt the glass raw material to form molten glass, and then transport the molten glass into the liquid container 11 .

In some other embodiments, the liquid supply tube 4 can be a platinum tube, the forming part 3 can be configured as a cylinder, and the forming hole 30 is collinear with the central axis of the cylinder.

As an optional embodiment, as shown in FIG. 1 , the molding equipment further includes a heating device 5 , the liquid supply device 1 includes a liquid supply pipe 4 connected to the overflow bin 2 , and the heating device 5 is used for heating the liquid supply pipe 4 and the molten glass in the liquid storage chamber 21. Here, the heating device 5 can heat the molten glass in the liquid supply pipe 4 and the liquid storage chamber 21, thereby compensating for the heat lost by the molten glass in the process of flowing, ensuring the temperature of the molten glass overflowing into the forming hole 30, and preventing the molten glass The fluidity is reduced, and even the phenomenon of solidification occurs, which affects the production quality of tubular glass.

As an optional embodiment, referring to FIG. 1 , the heating device 5 may include a heating element disposed near the connection between the liquid supply pipe 4 and the overflow bin 2 , and a plurality of heating elements disposed around the overflow bin 2 pieces. Here, the heating element disposed at the above-mentioned connection can heat the molten glass at the connection to prevent the molten glass in the liquid supply pipe 4 from cooling down during the process of entering the liquid storage chamber 21 . Each heating element can heat the molten glass in the liquid storage chamber 21, so as to prevent the molten glass in the liquid storage chamber 21 from cooling down during the liquid storage process.

In some other embodiments, the heating element may be a resistance wire, which starts to heat the liquid supply pipe 4 and the molten glass in the liquid storage chamber 21 after the resistance wire is energized.

As an optional embodiment, the molding equipment further includes a thermal insulation cover, the thermal insulation cover is arranged on the outer side of the overflow bin 2, and the plurality of heating elements are located in the thermal insulation cover. The thermal insulation cover can confine most of the heat generated by the plurality of heating elements in the thermal insulation cover, which can effectively avoid waste of heat dissipation generated by the heating elements.

As an optional embodiment, as shown in FIG. 1 , the molding equipment includes a cooling device 6 , the cooling device 6 is arranged below the discharge port 32 and has a glass tube through which the glass tube flowing out of the molding hole 30 passes. aisle. Here, the glass tube can be cooled by the cooling device in the process of passing through the channel, so that the cooling device 6 can cool and shape the overflowing molten glass tube.

As an optional embodiment, as shown in FIG. 1 , the cooling device 6 includes a cooling member, and the cooling member may be configured as a cooling pipe spirally wound along the central axis of the forming hole 30 , and the cooling pipe is wound with a channel. In this way, the above-mentioned channel is formed by the spirally wound cooling tube, which can increase its own heat exchange area when cooling the glass tube and ensure the cooling effect on the glass tube. Here, according to some embodiments, the cooling pipe may be provided with continuously circulating cold water, and when the molten glass pipe passes through the channel, it is gradually cooled and formed.

In some other embodiments, the cooling device 6 may also be a sealed heat sink formed with the above-mentioned channel, a cooling fan is provided on the side of the sealed heat sink away from the channel, and the cold air continuously generated by the cooling fan dissipates heat for the sealed heat sink, thereby realizing Cooling of molten glass tubes.

As an optional embodiment, as shown in FIG. 1 , the cooling device 6 is spaced apart from the overflow bin 2 , the molding 3 has an outer end portion 33 extending out of the overflow bin 2 , and the outer end portion 33 extends to On the upper side of the channel, a formed hole 30 is provided extending to the end of the outer end portion 33 . The outer end portion 33 extends to the upper side of the channel, which can prevent the molten glass from contacting with the outside air before cooling. The gas reacts chemically and affects the quality of the tubular glass.

The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings. However, the present disclosure is not limited to the specific details of the above-mentioned embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure. These simple modifications all fall within the protection scope of the present disclosure.

In addition, it should be noted that, the specific technical features described in the above-mentioned specific embodiments can be combined in any suitable manner unless they are inconsistent. In order to avoid unnecessary repetition, the present disclosure provides The combination method will not be specified otherwise.

In addition, the various embodiments of the present disclosure can also be arbitrarily combined, as long as they do not violate the spirit of the present disclosure, they should also be regarded as the contents disclosed in the present disclosure.

Claims (10)

1. The forming equipment for the tubular glass is characterized by comprising a liquid supply device (1), an overflow bin (2) and a formed part (3), wherein the liquid supply device (1) is communicated with the overflow bin (2) and used for supplying the overflow bin (2) with molten glass, the overflow bin (2) is provided with a liquid storage cavity (21) for containing the molten glass, the formed part (3) extends into the liquid storage cavity (21) and comprises a forming hole (30) which extends in the vertical direction and is circumferentially closed, the formed part (3) is provided with a feeding hole (31) at the upper end of the forming hole (30) and a discharging hole (32) at the lower end of the forming hole (30), and the feeding hole (31) is higher than the bottom surface of the liquid storage cavity (21).

2. The molding apparatus according to claim 1, characterized in that the upper edge of the molded part (3) at the feed opening (31) is level in the horizontal direction.

3. The molding apparatus as defined in claim 1, wherein the overflow bin (2) has a feed opening (22) communicating the liquid supply device (1) and the liquid accumulation chamber (21), the feed opening (31) being located above the feed opening (22).

4. The molding apparatus according to claim 1, wherein the liquid supply device (1) includes a liquid containing chamber (11) for containing the molten glass, the liquid supply device (1) further includes a liquid supply pipe (4) communicating the liquid containing chamber (11) with the overflow chamber (2), the liquid containing chamber (11) is located above the overflow chamber (2), and the molding apparatus is configured to: when the liquid containing bin (11) supplies the molten glass to the overflow bin (2), the liquid level height of the molten glass in the liquid containing bin (11) is kept unchanged in the process that the molten glass in the liquid storage cavity (21) enters the forming hole (30).

5. The molding apparatus as defined in claim 1, further comprising a heating device (5), wherein the liquid supply device (1) includes a liquid supply pipe (4) connected to the overflow bin (2), and the heating device (5) is configured to heat the liquid supply pipe (4) and the molten glass in the liquid storage chamber (21).

6. Moulding device according to claim 5, characterized in that the heating means (5) comprise a heating element arranged close to the connection of the supply pipe (4) with the overflow magazine (2), and a plurality of heating elements arranged around the overflow magazine (2).

7. The molding equipment as claimed in claim 6, further comprising a heat-insulating cover, wherein the heat-insulating cover is arranged outside the overflow bin (2), and the plurality of heating elements are all positioned in the heat-insulating cover.

8. The forming apparatus according to claim 1, characterized in that the forming apparatus comprises a cooling device (6), the cooling device (6) being disposed below the discharge port (32) and having a passage through which the glass tube flowing out from the forming hole (30) passes.

9. The molding apparatus as defined in claim 8, wherein the cooling device (6) comprises a cooling member configured as a cooling tube helically wound along a central axis of the molding hole (30), the cooling tube being wound with the passage formed therein.

10. The molding apparatus as claimed in claim 8, characterized in that the cooling device (6) is arranged at a distance from the overflow magazine (2), the molding element (3) has an outer end section (33) which projects beyond the overflow magazine (2), and the outer end section (33) extends to the upper side of the channel, the molding aperture (30) being arranged to extend to the end of the outer end section (33).

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