Bracket for annealing glass rod

Abstract

The utility model relates to the technical field of glass hot working, in particular to a bracket for annealing a glass rod. The bracket for annealing the glass rod comprises a load-bearing chassis, a plurality of first fixing grooves are uniformly formed in the load-bearing chassis, and a first ventilation hole is formed between every two adjacent first fixing grooves; supporting columns are fixedly connected to the four corners of the bearing chassis respectively, a supporting disc is fixedly connected to the middles of the supporting columns, a plurality of bar penetrating holes are evenly formed in the supporting disc, and the bar penetrating holes correspond to the first fixing grooves one to one in position; and a fixed cover is arranged above the supporting disc. According to the bracket for annealing the glass rods, provided by the utility model, each glass rod can be independently and vertically placed on the bracket, and the glass rods cannot be extruded or mutually influenced; by means of the first ventilation holes formed in the bearing base plate and the second ventilation holes formed in the fixing cover, heat exchange between the bottom and the top of the support for glass rod annealing is more uniform, the phenomenon that glass rods are heated unevenly in the annealing process is reduced, and the quality of finished products is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of glass thermal processing, in particular to a support for annealing a glass rod. Background Art

[0002] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the utility model, and shall not necessarily be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to ordinary technicians in this field.

[0003] Quartz glass rods are widely used in the optical fiber manufacturing industry, serving as connecting rods, lead rods, and holding rods for VAD processes required in the optical fiber manufacturing process. Existing processing techniques for quartz glass rods include batching, hot melting, extrusion, sizing, polishing, and annealing. In the prior art, flame polishing is performed, and the polished glass rods need to be transferred to an annealing furnace for annealing. The traditional annealing method is to stack the glass rods in an annealing furnace. Although stacking can increase the number of glass rods that can be accommodated in the annealing furnace, the glass rods will squeeze each other, and the glass rods in the upper, middle, and lower layers will be heated unevenly, which will cause the annealed glass rods to bend or crack in the outer layer, affecting the quality of the finished product. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a support for annealing a glass rod, on which each glass rod can be independently and vertically placed without squeezing or affecting each other; through a first ventilation hole arranged on a load-bearing chassis and a second ventilation hole on a fixed cover, heat exchange between the bottom and the top of the support for annealing the glass rod is more uniform, thereby reducing the phenomenon of uneven heating of the glass rods during the annealing process and improving the quality of the finished product.

[0005] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0006] A support for annealing a glass rod comprises a load-bearing chassis, on which a plurality of first fixing grooves are evenly arranged, and a first ventilation hole is arranged between two adjacent first fixing grooves; the four corners of the load-bearing chassis are respectively fixedly connected to support columns, the middle of the support columns is fixedly connected to a support plate, and the support plate is evenly provided with a plurality of rod insertion holes, and the positions of the rod insertion holes and the first fixing grooves correspond one to one; a fixing cover is arranged above the support plate.

[0007] In one or more embodiments, in order to support the support for annealing the glass rod, a plurality of support pillars are welded to the bottom of the load-bearing chassis.

[0008] In one or more embodiments, in order to facilitate the lifting, lowering and transfer of the entire support for annealing a glass rod, the top of the support column is fixedly connected to a hanging ring mounting hole.

[0009] In one or more embodiments, in order to guide the placement position of the fixed cover, the four corners of the support plate are respectively provided with first through holes, the four corners of the fixed cover are respectively provided with second through holes, and the positioning rod passes through the second through holes and the first through holes to be fixedly connected to the load-bearing chassis.

[0010] Preferably, in order to prevent the positioning rod from shaking, the positioning rod is welded to the first insertion hole respectively to form an integral structure.

[0011] In one or more embodiments, a plurality of second fixing grooves are provided on the fixing cover.

[0012] Preferably, the position of the second fixing groove corresponds one-to-one to the position of the first fixing groove.

[0013] Preferably, a second ventilation hole is provided between two adjacent second fixing grooves.

[0014] In one or more embodiments, the support for supporting the glass rod annealing is made entirely of high-temperature resistant aluminum alloy.

[0015] In one or more embodiments, in order to prevent the glass rod from directly contacting the metal load-bearing chassis and thereby reduce the glass rod from bursting due to heat and stress during annealing, a fireproof cotton layer is provided above the load-bearing chassis.

[0016] The beneficial effects of the utility model are:

[0017] The polished glass rod can pass through the rod hole of the support plate and be vertically placed in the first fixing groove of the load-bearing bottom plate, and the top of the glass rod is in contact with the second fixing groove of the fixing cover. Compared with the traditional method of stacking glass rods and placing them in the annealing furnace for annealing, the glass rod annealing bracket of the utility model can independently and vertically place each glass rod on the bracket without squeezing or affecting each other. The heat exchange between the bottom and the top of the glass rod annealing bracket is more uniform through the first ventilation hole set in the load-bearing bottom plate and the second ventilation hole of the fixing cover, so that the uneven heating of the glass rod during the annealing process can be reduced, and the quality of the finished product can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0019] Figure 1This is a schematic diagram of the structure of a support for annealing a glass rod in Example 1 of the utility model;

[0020] Among them, 1-support pillar, 2-load-bearing chassis, 3-first fixing groove, 4-first ventilation hole, 5-support plate, 6-rod hole, 7-support column, 8-fixing cover, 9-second fixing groove, 10-positioning rod, 11-lifting ring installation hole, 12-second ventilation hole. DETAILED DESCRIPTION

[0021] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0022] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0023] The present invention will be further described in detail below in conjunction with specific embodiments. It should be noted that the specific embodiments are intended to explain the present invention rather than to limit it.

[0024] Example 1

[0025] See also Figure 1 A support for annealing a glass rod comprises a load-bearing chassis 1, on which a plurality of first fixing grooves 3 are evenly arranged, the openings of the first fixing grooves 3 face upward, and a first ventilation hole 4 is arranged between two adjacent first fixing grooves 3; support columns 7 are welded to the four corners of the load-bearing chassis 1, a support plate 5 is welded to the middle of the support columns 7, the load-bearing chassis 1 is parallel to the support plate 5, a plurality of rod insertion holes 6 are evenly arranged on the support plate 5, and the positions of the rod insertion holes 6 and the first fixing grooves 3 correspond one to one; a fixing cover 8 is arranged above the support plate 5.

[0026] When the glass rod annealing support provided in this embodiment is used, the polished glass rod can pass through the rod hole of the support plate 5 and be placed vertically in the first fixed groove of the load-bearing chassis 5. Since some glass rods are too thin or the glass rods are tilted during placement, the glass rods may contact with the rod hole 6 or lean on the rod hole 6. In order to prevent the glass rods from contacting with the rod hole 6, which causes uneven heating during annealing, after the glass rods are placed, a fixed cover 8 is placed on the top of the glass rods. A plurality of second fixed grooves 9 are provided on the fixed cover 8, the openings of the second fixed grooves 9 are downward, and the positions of the second fixed grooves 9 correspond to the positions of the first fixed grooves 3 one by one. The second fixed grooves 9 contact the top of the glass rod, and the first fixed grooves 3 contact the bottom of the glass rod. The second fixed grooves 9 and the first fixed grooves 3 can limit the position of the glass rod, and at the same time can ensure that the glass rod is placed perpendicular to the load-bearing chassis 2, and can prevent the glass rod from contacting with the rod hole 6.

[0027] In order to prevent the position of the fixed cover 8 from being offset and guide the position where it is placed, the four corners of the support plate 5 are respectively provided with first insertion holes, and the four corners of the fixed cover 8 are respectively provided with second insertion holes, and the positioning rod 10 passes through the second insertion holes and the first insertion holes and is welded to the load-bearing chassis 1. In order to prevent the positioning rod 10 from shaking, the positioning rod 10 is welded to the first insertion holes respectively to form an integrated structure. When the glass rod annealing bracket provided in this embodiment is used, after the glass rod is placed, the fixed cover 8 is lowered, and the positioning rod 10 just passes through the second insertion hole of the fixed cover 8, and the second fixing groove 9 just contacts the top of the glass rod.

[0028] Since the glass rod annealing bracket is placed in the annealing furnace, a heating structure is provided at the bottom of the annealing furnace. In order to prevent heat from being directly transmitted to the glass rod annealing bracket, thereby preventing the temperature of the glass rod annealing bracket from being too high and affecting the annealing of the glass rod, in order to support the glass rod annealing bracket, a plurality of bracket pillars 1 are welded to the bottom of the load-bearing chassis 2.

[0029] Since the glass rod annealing support is placed in the annealing furnace, a heating structure is provided at the bottom of the annealing furnace, and a ventilation structure is provided at the top of the annealing furnace. In order to ensure that the heat exchange between the bottom and the top of the glass rod annealing support is more uniform, thereby reducing the phenomenon of uneven heating of the glass rod during the annealing process, a first ventilation hole 4 is provided between two adjacent first fixing grooves, and a second ventilation hole 12 is provided between two adjacent second fixing grooves 9.

[0030] Since the glass rod annealing bracket is placed in an annealing furnace where the temperature is relatively high, in order to ensure overall stability and durability, the bracket support pillar 1, the load-bearing chassis 2, the first fixing groove 3, the support plate 5, the support column 7, the fixing cover 8, the second fixing groove 9, the positioning rod 10 and the lifting ring mounting hole 11 are all made of high temperature resistant aluminum alloy.

[0031] Since the first fixing groove 3 of the load-bearing chassis 2 is made of metal, in order to prevent the glass rod from directly contacting the metal material and thereby reduce the glass rod from cracking due to heat and stress during annealing, a fireproof cotton layer is provided above the load-bearing chassis 5, and the glass rod can contact the first fixing groove 3 of the load-bearing chassis 5 through the fireproof surface layer.

[0032] In order to facilitate the entire glass rod annealing support to enter and exit the annealing furnace and move the entire position, the top of the support column 7 is fixedly connected to the hanging ring mounting hole 11.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of them with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A support for annealing a glass rod, characterized in that: It includes a load-bearing chassis, on which a plurality of first fixing grooves are evenly arranged, and a first ventilation hole is arranged between two adjacent first fixing grooves; the four corners of the load-bearing chassis are respectively fixedly connected to support columns, the middle of the support columns are fixedly connected to a support plate, and the support plate is evenly provided with a plurality of rod-through holes, and the positions of the rod-through holes and the first fixing grooves correspond one by one; a fixing cover is arranged above the support plate.

2. The glass rod annealing support according to claim 1, characterized in that: A plurality of support struts are welded to the bottom of the load-bearing chassis.

3. The glass rod annealing support according to claim 1, characterized in that: The top of the support column is fixedly connected to the lifting ring mounting hole.

4. The glass rod annealing support according to claim 1, characterized in that: The four corners of the support plate are respectively provided with first insertion holes, the four corners of the fixing cover are respectively provided with second insertion holes, and the positioning rod passes through the second insertion holes and the first insertion holes to be fixedly connected with the load-bearing chassis.

5. The glass rod annealing support according to claim 4, characterized in that: The positioning rods are respectively welded to the first insertion holes to form an integrated structure.

6. The glass rod annealing support according to claim 1, characterized in that: The fixing cover is provided with a plurality of second fixing grooves.

7. The glass rod annealing support according to claim 6, characterized in that: The position of the second fixing groove corresponds one-to-one to the position of the first fixing groove.

8. The glass rod annealing support according to claim 6, characterized in that: A second ventilation hole is arranged between two adjacent second fixing grooves.

9. The glass rod annealing support according to claim 1, characterized in that: A fireproof cotton layer is arranged above the load-bearing chassis.

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