Annealing furnace for ink glass

Abstract

The utility model discloses an annealing furnace for printing ink glass. The annealing furnace is used for being installed between a heating furnace and a cold air grid. A plurality of annealing areas are sequentially arranged in the annealing furnace, and each annealing area is provided with a plurality of heating wire sets, a plurality of conveying rollers and a plurality of temperature balance pipes. The conveying rollers are arranged at intervals in the front-back direction, the heating wire sets are divided into two rows, and the two rows of heating wire sets are arranged above and below the conveying rollers respectively. The plurality of temperature balance pipes are divided into two rows which are symmetrically arranged up and down; a plurality of temperature balancing pipes in a row are arranged at intervals and are positioned between the heating wire group at the upper part and the conveying roller or between the heating wire group at the lower part and the conveying roller; the temperature balance pipes are used for inputting cooling air into the corresponding annealing areas and enabling the temperatures of the multiple annealing areas to be sequentially reduced to the corresponding temperature set values. Internal stress cannot be generated in the ink glass subjected to segmented cooling treatment of the multiple annealing areas, machining performance is achieved, and the diversity and individuation of the ink glass can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to ink glass production equipment technical field especially relates to a kind of annealing furnace for ink glass. BACKGROUND

[0002] Ink glass is widely used in building curtain wall, automobile, household appliance and door and window decoration.

[0003] The drying process path of prior art ink glass is as follows: the glass coated with ink on surface is baked at high temperature in heating furnace, ink and glass body are fused into one and solidified, then the glass is quenched by instantaneous temperature drop, that is, ink glass is prepared.

[0004] Since the ink glass prepared according to the above production process is tempered glass, the reprocessing performance of ink glass is limited, so that the diversity and personalized processing of ink glass are restricted. INVENTION CONTENTS

[0005] In view of the above shortcomings, the utility model aims at providing an annealing furnace for ink glass to solve the problem that the ink glass of prior art does not have reprocessing performance, so that the diversity and personalized processing of ink glass are restricted.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] An annealing furnace for ink glass, the annealing furnace is used to be installed between heating furnace and cold air grid, the input port of the annealing furnace is used to input ink glass heated by heating furnace and completed ink sintering;

[0008] A plurality of annealing zones are arranged in sequence in the annealing furnace, each annealing zone is installed with a plurality of heating wire groups, a plurality of conveying rollers and a plurality of temperature balance pipes;

[0009] A plurality of conveying rollers are arranged in intervals along front and back direction, a plurality of heating wire groups are divided into two columns, and two columns of heating wire groups are arranged above and below a plurality of conveying rollers respectively;

[0010] A plurality of temperature balance pipes are divided into two columns arranged symmetrically in upper and lower directions; a plurality of temperature balance pipes in one column are arranged in intervals, and between the heating wire group above or the heating wire group below and the conveying roller;

[0011] The temperature balance pipe is used to input cooling air to corresponding annealing zone, and the temperature of a plurality of annealing zones is sequentially reduced to corresponding temperature setting value.

[0012] Specifically, the temperature balance pipe comprises cooling air discharge pipe and two cooling air inlet pipes.

[0013] The cooling air exhaust pipe extends along the left-right direction; one end of the cooling air inlet pipe extends to outside of the annealing furnace to input compressed air; the other end of the two cooling air inlet pipes respectively extends into the left and right ends of the cooling air exhaust pipe and is close to the middle part of the cooling air exhaust pipe; the gap between the outer circumferential surface of the cooling air inlet pipe and the inner wall of the cooling air exhaust pipe forms a cooling air mixing cavity;

[0014] The top of the cooling air inlet pipe located in the cooling air exhaust pipe is provided with a plurality of air inlet through holes, and the plurality of air inlet through holes are distributed along the length direction of the cooling air inlet pipe;

[0015] The outer circumferential surface of the cooling air exhaust pipe is provided with a plurality of air blowing through holes arranged at intervals, and the cooling air exhaust pipe is located between two adjacent front and rear conveying rollers.

[0016] Further, both of the two opposite surfaces of the two cooling air exhaust pipes located in the same annealing zone and adjacent front and rear are provided with a plurality of air blowing through holes;

[0017] The plurality of air blowing through holes are divided into two rows; the plurality of air blowing through holes in one row are distributed along the length direction of the cooling air exhaust pipe, and the two rows of air blowing through holes are distributed symmetrically along the radial direction of the cooling air exhaust pipe and are distributed in the same horizontal plane parallel to the top surface of the plurality of conveying rollers.

[0018] Further, both of the two opposite surfaces of the two cooling air exhaust pipes located in different annealing zones and adjacent front and rear are not provided with air blowing through holes.

[0019] Further, a plurality of air exhaust holes are formed in the top of the annealing furnace, and a plurality of air exhaust hole cover closers are correspondingly installed;

[0020] The air exhaust hole cover closers are used to open and close the corresponding air exhaust holes.

[0021] Further, a plurality of air conveying pipes are installed on the top and side surface of the annealing furnace;

[0022] The air conveying pipe is provided with an input end and a plurality of output ends; the input end of the air conveying pipe is used to communicate with the compressed air equipment outside to input compressed air, and the output end of the air conveying pipe is connected with one end of the cooling air inlet pipe;

[0023] The air conveying pipe located on the top of the annealing furnace is used to communicate with the cooling air inlet pipe located above the conveying roller to convey compressed air;

[0024] Air conveying pipes located at the side of the annealing furnace are used to communicate with the cooling air inlet pipes located below the conveying rollers to convey compressed air.

[0025] Further, the top of the annealing furnace is also provided with a plurality of air flow balance pipes.

[0026] The air conveying pipes located at the top of the annealing furnace are in pairs; two air conveying pipes in a pair are symmetrically distributed above the corresponding annealing zone; the two ends of the air flow balance pipe are respectively connected with the two input ends of the two air conveying pipes opposite to each other, and one end of the air flow balance pipe is also used to communicate with the compressed air equipment outside to input compressed air.

[0027] Further, the annealing furnace is also provided with a plurality of proportional valves.

[0028] The input end of the proportional valve is used to communicate with the compressed air equipment outside to input compressed air; the output end of the proportional valve is used to communicate with one end of the air flow balance pipe or the input end of the air conveying pipe located at the side of the annealing furnace.

[0029] The technical scheme of the utility model has the advantages that the annealing furnace for ink glass is used for ink glass which has not been machined and treated, and after the ink glass is dried and sintered by the heating furnace, the ink glass is subjected to segmented cooling treatment in multiple annealing zones, so that the ink glass has no internal stress after being discharged from the annealing furnace, and the ink glass product has good machining performance and can improve the diversity and personalized machining performance of the ink glass. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a sectional structure schematic view of the annealing furnace for ink glass.

[0031] Figure 2 It is an enlarged view of part A. Figure 1

[0032] Figure 3 It is a structure schematic view of one embodiment of the temperature balance pipe.

[0033] Figure 4 It is a structure schematic view of another embodiment of the temperature balance pipe.

[0034] Figure 5 It is a partial structure schematic view of the annealing furnace for ink glass from the top.

[0035] Figure 6 ​The annealing furnace for ink glass is arranged between the heating furnace 2 and the cold air grid 3, the input port of the annealing furnace is used for inputting the ink glass 10 which is heated by the heating furnace and completes ink sintering;

[0036] Wherein: annealing area 1; heating furnace 2; cold air grid 3; ink glass 10; spiral convection pipe 11; conveying roller 12; heating wire group 13; exhaust hole 14; exhaust hole cover 15; air delivery pipe 16; air flow balance pipe 17; temperature balance pipe 18; proportional valve 19; cooling air inlet pipe 181; cooling air outlet pipe 182; inlet hole 1811; air blowing hole 1821. DETAILED DESCRIPTION

[0037] The technical scheme of the present application will be further described below in combination with the accompanying drawings. Figures 1-5 The technical scheme of the present application will be further described below in combination with the accompanying drawings.

[0038] The accompanying drawings are only used for illustrative description and should not be understood as limitation of the patent; in order to better illustrate the embodiment, some components in the drawings can be omitted, enlarged or reduced, and the size of the actual product is not represented; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings can be omitted.

[0039] In the description of the present application, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, and it can be said that the two elements are connected internally. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] An annealing furnace for ink glass, the annealing furnace is arranged between the heating furnace 2 and the cold air grid 3, the input port of the annealing furnace is used for inputting the ink glass 10 which is heated by the heating furnace and completes ink sintering;

[0041] A plurality of annealing areas 1 are arranged in the annealing furnace in sequence, each of the annealing areas 1 is provided with a plurality of heating wire groups 13, a plurality of conveying rollers 12 and a plurality of temperature balance pipes 18;

[0042] The plurality of conveying rollers 12 are arranged in the front-rear direction, and the plurality of heating wire groups 13 are divided into two rows, and the two rows of heating wire groups 13 are arranged above and below the plurality of conveying rollers 12 respectively;

[0043] The plurality of temperature balance pipes 18 are divided into two rows arranged symmetrically above and below; the plurality of temperature balance pipes 18 in one row are arranged at intervals and located between the heating wire groups 13 above and the conveying rollers 12, or between the heating wire groups 13 below and the conveying rollers 12.

[0044] The temperature balance tube 18 is used to input cooling air into the corresponding annealing zone 1 and to reduce the temperature of the multiple annealing zones 1 to the corresponding temperature set value in sequence.

[0045] Figure 1 This is a schematic diagram of the structure of the annealing furnace for ink-coated glass according to the present invention; Figure 6 This is a schematic diagram of the production line for the annealing furnace for ink-coated glass of this invention, installed between the heating furnace 2 and the cold air grid 3.

[0046] like Figure 1 As shown, multiple temperature balancing tubes 18, symmetrically distributed vertically, supply cooling air to each annealing zone 1 of the annealing furnace, causing the temperature of the temperature field in the multiple annealing zones 1 to decrease sequentially (for example, the successively decreasing temperature settings are 650℃, 580℃, 480℃, 380℃, and 280℃). After the ink glass 10, which has completed ink sintering, exits the heating furnace, it is conveyed forward by multiple conveyor rollers 12 and sequentially enters each annealing zone 1. The ink glass 10 moves back and forth in the corresponding annealing zone 1 so that the ink glass 10 is uniformly cooled to the corresponding temperature setting value. After the ink glass 10 has completed cooling in the last annealing zone 1, it exits the annealing furnace and is then cooled to room temperature by a cold air grid. This avoids the generation of internal stress in the ink glass 10 during annealing and cooling, so that the annealed ink glass 10 has the processing properties of being cut and edge-grinding.

[0047] The ink glass 10 used in the annealing furnace for ink glass according to this invention is unprocessed. The ink glass 10 after annealing has good machinability and can improve the diversity and personalized processing performance of ink glass.

[0048] Specifically, the temperature balance tube 18 includes a cooling air exhaust pipe 182 and two cooling air intake pipes 181;

[0049] The cooling air exhaust pipe 182 extends in the left-right direction; one end of the cooling air intake pipe 181 extends outside the annealing furnace to input compressed air; the other ends of the two cooling air intake pipes 181 extend into the left and right ends of the cooling air exhaust pipe 182 respectively, and are close to the middle of the cooling air exhaust pipe 182; the gap between the outer peripheral surface of the cooling air intake pipe 181 and the inner wall of the cooling air exhaust pipe 182 forms a cooling air mixing chamber;

[0050] The top of the cooling air inlet pipe 181 located inside the cooling air outlet pipe 182 is provided with a plurality of air inlet holes 1811, and the plurality of air inlet holes 1811 are distributed at intervals along the length direction of the cooling air inlet pipe 181.

[0051] The outer circumferential surface of the cooling air exhaust pipe 182 is provided with a plurality of air blowing through holes 1821 arranged at intervals, and the cooling air exhaust pipe 182 is located between two adjacent front and rear conveying rollers 12.

[0052] As shown in the figure, the compressed air passes through the cooling air inlet pipe 181 and enters the cooling air mixing chamber between the outer circumferential surface of the cooling air inlet pipe 181 and the inner wall of the cooling air exhaust pipe 182 through a plurality of air inlet holes 1811, so that the air pressure of the compressed air in the cooling air mixing chamber is uniformized, and the compressed air after air pressure uniformization is output to the annealing area 1 from a plurality of air blowing through holes 1821, so as to make the temperature field of the corresponding annealing area 1 drop and uniformly distribute, and then the temperature of the passing ink glass 10 is uniformly reduced. Figures 1-3 Further, the two opposite surfaces of the two cooling air exhaust pipes 182 located in the same annealing area 1 and adjacent front and rear are each provided with a plurality of air blowing through holes 1821.

[0053] The plurality of air blowing through holes 1821 are divided into two rows; the air blowing through holes 1821 in one row are distributed at intervals along the length direction of the cooling air exhaust pipe 182, and the two rows of air blowing through holes 1821 are distributed symmetrically in the front and back along the radial direction of the cooling air exhaust pipe 182, and are distributed in the same horizontal plane parallel to the top surface of the plurality of conveying rollers 12.

[0054] As shown in the figure, the cooling air output by the two air blowing through holes 1821 located in the same annealing area 1 and opposite front and rear interfere with each other, so that the cooling air distribution in the same annealing area 1 is more uniform, thereby improving the uniformity of the temperature field distribution of the annealing area 1, and further improving the cooling quality of the ink glass 10, and avoiding the internal stress of the ink glass 10 due to uneven temperature field distribution.

[0055] Figures 1-3 Further, the two opposite surfaces of the two cooling air exhaust pipes 182 located in different annealing areas 1 and adjacent front and rear are each not provided with the air blowing through holes 1821.

[0056] As shown in the figure, the cooling air output by the two air blowing through holes 1821 located in the same annealing area 1 and opposite front and rear interfere with each other, so that the cooling air distribution in the same annealing area 1 is more uniform, thereby improving the uniformity of the temperature field distribution of the annealing area 1, and further improving the cooling quality of the ink glass 10, and avoiding the internal stress of the ink glass 10 due to uneven temperature field distribution.

[0057] As shown in the figure, the cooling air output by the two air blowing through holes 1821 located in the same annealing area 1 and opposite front and rear interfere with each other, so that the cooling air distribution in the same annealing area 1 is more uniform, thereby improving the uniformity of the temperature field distribution of the annealing area 1, and further improving the cooling quality of the ink glass 10, and avoiding the internal stress of the ink glass 10 due to uneven temperature field distribution. Figure 4 ​The cooling air exhaust pipe 182 shown is located in different annealing zones 1, and the structure of any one of the two cooling air exhaust pipes 182 adjacent in front and back is shown schematically. The side of the cooling air exhaust pipe 182 facing the other annealing zone 1 is not provided with a blowing through-hole 1821. Since the temperatures of the two adjacent annealing zones 1 are different, the flow of cooling air input through the cooling air exhaust pipe 182 is different. In this way, the cooling air output by the cooling air exhaust pipe 182 located at the front end or the rear end of an annealing zone 1 can prevent the uniformity of the temperature distribution of the temperature field at the front end or the rear end of the other annealing zone 1.

[0058] Further, the top of the annealing furnace is provided with a plurality of exhaust holes 14, and a plurality of liftable exhaust hole coverers 15 are correspondingly installed;

[0059] The exhaust hole coverer 15 is used to open and close the corresponding exhaust hole 14.

[0060] As Figure 1 shown, part of the hot gas in the annealing furnace is discharged outward through the exhaust hole 14 to avoid the phenomenon of excessively high air pressure in the annealing furnace due to the input of cooling air. When the temperature is too high locally, part of the hot gas can also be discharged outward through the corresponding exhaust hole 14 to balance the uniformity of the internal temperature distribution.

[0061] Further, the top and the side of the annealing furnace are also provided with a plurality of air conveying pipes 16;

[0062] The air conveying pipe 16 is provided with an input end and a plurality of output ends. The input end of the air conveying pipe 16 is used to communicate with the compressed air equipment outside to input compressed air, and the output end of the air conveying pipe 16 communicates with one end of the cooling air inlet pipe 181;

[0063] The air conveying pipe 16 located at the top of the annealing furnace is used to communicate with the cooling air inlet pipe 181 located above the conveying roller 12 to convey compressed air;

[0064] The air conveying pipe 16 located at the side of the annealing furnace is used to communicate with the cooling air inlet pipe 181 located below the conveying roller 12 to convey compressed air.

[0065] As Figure 5 shown, the air conveying pipe 16 located at the top of the heating furnace provides compressed air to the cooling air inlet pipe 181 or the spiral air inlet pipe 111 located above the conveying roller 12, and the air conveying pipe 16 located at the side of the heating furnace provides compressed air to the cooling air inlet pipe 181 or the spiral air inlet pipe 111 located below the conveying roller 12.

[0066] Further, the top of the annealing furnace is also provided with a plurality of air flow balance pipes 17;

[0067] The air delivery pipes 16 located at the top of the annealing furnace are arranged in pairs, and two air delivery pipes 16 in each pair are symmetrically arranged above the corresponding annealing zone 1. The two ends of the air flow balance pipe 17 are respectively connected with the two input ends of the two air delivery pipes 16 located at the left and right sides, and one end of the air flow balance pipe 17 is also connected with the compressed air equipment outside for inputting compressed air.

[0068] As shown in Figure 5 , the air flow balance pipe 17 is connected to make the air flow of the compressed air input by the two cooling air inlet pipes 181 located above the conveying roller 12 the same.

[0069] Further, the annealing furnace is also provided with a plurality of proportional valves 19.

[0070] The input end of the proportional valve 19 is connected with the compressed air equipment outside for inputting compressed air, and the output end of the proportional valve 19 is connected with one end of the air flow balance pipe 17 or the input end of the air delivery pipe 16 located at the side of the annealing furnace.

[0071] As shown in Figure 5 , the proportional valve 19 can control the flow of the compressed air entering the corresponding air delivery pipe 16.

[0072] In summary, as shown in Figures 1-6 , the annealing furnace for ink glass, the ink glass 10 is not machined, and after the ink glass 10 is dried and sintered by the heating furnace, the ink glass 10 is subjected to segmented cooling treatment by the plurality of annealing zones 1, so that the ink glass 10 after being discharged from the furnace does not generate internal stress, has good machining performance, and can improve the size universality of the ink glass product and the flexibility of the production planning.

[0073] The technical principles of the utility model are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the utility model, and cannot be interpreted as limiting the protection scope of the utility model in any way. Based on the explanations herein, other specific embodiments of the utility model can be conceived by those skilled in the art without creative labor, and these embodiments will all fall within the protection scope of the utility model.

Claims

1. An annealing furnace for inked glass, characterized in that, The annealing furnace is used for being installed between a heating furnace and a cold air grid, and an input port of the annealing furnace is used for inputting ink glass heated by the heating furnace and completing ink sintering; A plurality of annealing zones are arranged in sequence in the annealing furnace, and each of the annealing zones is provided with a plurality of heating wire groups, a plurality of conveying rollers and a plurality of temperature balance pipes; The plurality of conveying rollers are arranged in the front-rear direction at intervals, and the plurality of heating wire groups are divided into two columns, and the two columns of heating wire groups are arranged above and below the plurality of conveying rollers, respectively; The plurality of temperature balance pipes are divided into two columns arranged symmetrically in the up-down direction; the plurality of temperature balance pipes in one column are arranged at intervals and located between the heating wire groups above and the conveying rollers, or between the heating wire groups below and the conveying rollers; The temperature balance pipes are used for inputting cooling air into the corresponding annealing zones, and the temperature of the plurality of annealing zones is sequentially reduced to the corresponding temperature setting value.

2. Annealing furnace for inked glass according to claim 1, characterized in that, The temperature balance pipe comprises a cooling air discharge pipe and two cooling air inlet pipes; The cooling air discharge pipe extends in the left-right direction; one end of the cooling air inlet pipe extends to outside the annealing furnace to input compressed air; the other end of the two cooling air inlet pipes respectively extends into the left and right ends of the cooling air discharge pipe and is close to the middle part of the cooling air discharge pipe; the gap between the outer circumferential surface of the cooling air inlet pipe and the inner wall of the cooling air discharge pipe forms a cooling air mixing cavity; A plurality of air inlet holes are arranged on the top of the cooling air inlet pipe in the cooling air discharge pipe and are distributed at intervals along the length direction of the cooling air inlet pipe; The outer circumferential surface of the cooling air discharge pipe is provided with a plurality of air blowing holes arranged at intervals, and the cooling air discharge pipe is located between the two conveying rollers adjacent in the front-rear direction.

3. Annealing furnace for inked glass according to claim 2, characterized in that, Two opposite surfaces of two cooling air discharge pipes adjacent in the front-rear direction in the same annealing zone are provided with a plurality of air blowing holes; The plurality of air blowing holes are divided into two columns; the plurality of air blowing holes in one column are distributed at intervals along the length direction of the cooling air discharge pipe, and the two columns of air blowing holes are distributed symmetrically in the front-rear direction along the radial direction of the cooling air discharge pipe and are distributed in the same horizontal plane parallel to the top surface of the plurality of conveying rollers.

4. The annealing furnace for ink glass according to claim 2, characterized by The two opposite surfaces of two cooling air discharge pipes adjacent in the front-rear direction in different annealing zones are not provided with air blowing holes.

5. The annealing furnace for ink glass according to claim 1, characterized by A plurality of exhaust hole covers are arranged on the top of the annealing furnace and are arranged correspondingly; The exhaust hole covers are used for opening and closing the corresponding exhaust holes.

6. The annealing furnace for ink glass according to claim 4, characterized by A plurality of air conveying pipes are arranged on the top and the side of the annealing furnace; The air conveying pipe is provided with an input end and a plurality of output ends; the input end of the air conveying pipe is used for being connected with the compressed air equipment outside to input compressed air, and the output end of the air conveying pipe is connected with one end of the cooling air inlet pipe; The air conveying pipe arranged on the top of the annealing furnace is used for being connected with the cooling air inlet pipe arranged above the conveying roller to convey compressed air. Air conveying pipes located at the side of the annealing furnace are used to communicate with the cooling air inlet pipes located below the conveying rollers to convey compressed air.

7. Annealing furnace for inked glass according to claim 6, characterized in that A plurality of air flow balance pipes are also installed on the top of the annealing furnace; The air conveying pipes located on the top of the annealing furnace are in pairs; the two air conveying pipes in a pair are symmetrically distributed above the corresponding annealing zone; the two ends of the air flow balance pipe are respectively connected to the two input ends of the two air conveying pipes opposite to each other; one end of the air flow balance pipe is also used to communicate with the compressed air equipment outside to input compressed air.

8. Annealing furnace for inked glass according to claim 7, characterized in that The annealing furnace is also installed with a plurality of proportional valves; The input end of the proportional valve is used to communicate with the compressed air equipment outside to input compressed air; the output end of the proportional valve is used to communicate with one end of the air flow balance pipe or the input end of the air conveying pipe located at the side of the annealing furnace.

Images