Printing ink glass production line compatible with printing ink drying and glass toughening

Abstract

The invention relates to the technical field of printing ink glass production equipment, and discloses a printing ink glass production line compatible with printing ink drying and glass tempering, the printing ink glass production line comprises a heating furnace and a cold air grid, the heating furnace is provided with a preheating zone, a printing ink sintering zone and a plurality of annealing zones which are sequentially arranged from back to front; a plurality of temperature balance pipes are mounted in the annealing area and are divided into two rows which are symmetrically arranged up and down; the temperature balance pipes are used for inputting cooling air into the corresponding annealing areas; the device can be used for drying ink and tempering and cooling ink glass. The equipment can be used for drying printing ink and tempering glass, and has better universality and utilization rate; when the printing ink drying agent is used for printing ink drying, a prepared printing ink glass product has good machining performance, and the size universality of the printing ink glass finished product and the flexibility of a production scheduling plan can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of ink glass production equipment, and in particular to an ink glass production line compatible with ink drying and glass tempering. Background Art

[0002] Ink glass is widely used in building curtain walls, automobiles, home appliances and door and window decoration.

[0003] The drying process of ink glass in the prior art is as follows: the glass coated with ink on the surface is baked at high temperature in a heating furnace, the ink and the glass body are melted into one and solidified, and then the glass is quenched by instantaneous cooling to obtain ink glass.

[0004] Since the ink glass produced according to the above production process is tempered glass, it does not have the processing properties of cutting and edge grinding, resulting in that the size of the finished ink glass cannot be adjusted, which reduces the versatility of the ink glass in stock and can only be produced according to the size of the actual order, limiting the flexibility of the production schedule.

[0005] Furthermore, the existing ink glass drying equipment has a single function. Summary of the invention

[0006] In view of the above-mentioned shortcomings, the purpose of the present invention is to propose an ink glass production line that is compatible with ink drying and glass tempering, which not only has the function of ink drying, but can be used for glass tempering, and the dried ink glass can overcome the defects of poor dimensional versatility of the ink glass finished products in the prior art and poor flexibility in production scheduling.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] An ink glass production line compatible with ink drying and glass tempering, comprising a heating furnace and a cold air grid arranged in sequence in a forward running direction, wherein the heating furnace is provided with a preheating zone, an ink sintering zone and a plurality of annealing zones arranged in sequence from back to front;

[0009] The preheating zone, ink sintering zone and multiple annealing zones are all equipped with multiple heating wire groups and multiple conveying rollers; the multiple conveying rollers are arranged at intervals along the front-to-back direction, and the multiple heating wire groups are divided into two rows, and the two rows of heating wire groups are symmetrically distributed up and down with the glass conveying surface as the plane;

[0010] The annealing zone is equipped with a plurality of temperature balancing tubes, which are divided into two rows symmetrically arranged in an upper and lower direction; the plurality of temperature balancing tubes in one row are arranged at intervals between the upper heating wire group and the conveying roller, or between the lower heating wire group and the conveying roller; the temperature balancing tubes are used to input cooling air to the corresponding annealing zone;

[0011] When used for ink drying, the temperature of the ink sintering zone is higher than the temperature of the preheater, the temperature of the ink sintering zone is close to the glass softening temperature of the ink glass and is the highest temperature; all the temperature balance tubes are enabled, and the temperatures of the multiple annealing zones are sequentially reduced from the back to the front; the temperature of the annealing zone close to the cold air grille is lower than °C; the cold air grille turns on the cooling function and is used to reduce the temperature of the ink glass from °C to room temperature;

[0012] When used for tempering ink glass, the temperature of the annealing zone close to the cold air grid is close to the glass softening temperature of the ink glass and is the highest temperature; all the temperature balance tubes are disabled; the temperatures of the preheating zone, the ink sintering zone and the remaining multiple annealing zones are increased in sequence, and the cold air grid includes quenching and cooling functions, which is used to temper and cool the ink glass.

[0013] Specifically, the temperature balance pipe includes a cooling air exhaust pipe and two cooling air intake pipes;

[0014] The cooling air discharge pipe extends in the left-right direction; one end of the cooling air inlet pipe extends outside the heating furnace to input compressed air; the other ends of the two cooling air inlet pipes extend from the left and right ends of the cooling air discharge pipe respectively and are close to the middle of the cooling air discharge pipe; the gap between the outer peripheral surface of the cooling air inlet pipe and the inner wall of the cooling air discharge pipe forms a cooling air mixing chamber;

[0015] A plurality of air intake holes are provided at the top of the cooling air intake pipe located in the cooling air exhaust pipe, and the plurality of air intake holes are distributed at intervals along the length direction of the cooling air intake pipe;

[0016] The outer peripheral surface of the cooling air exhaust pipe is provided with a plurality of air blowing holes arranged at intervals, and the cooling air exhaust pipe is located between two adjacent conveying rollers in the front and rear directions.

[0017] Furthermore, two opposite surfaces of two cooling air exhaust pipes located in the same annealing zone and adjacent to each other are each provided with a plurality of blowing holes;

[0018] The plurality of air blowing holes are divided into two rows; the plurality of air blowing holes in one row are spaced apart along the length direction of the cooling air discharge pipe, and the air blowing holes in two rows are symmetrically distributed front-to-back along the radial direction of the cooling air discharge pipe, and are distributed on the same horizontal plane parallel to the top surfaces of the plurality of conveying rollers;

[0019] The two opposite surfaces of the two cooling air exhaust pipes located in different annealing zones and adjacent to each other in front and behind do not have the blowing through holes.

[0020] Furthermore, the preheating zone and the ink sintering zone are both equipped with a plurality of spiral convection tubes;

[0021] The plurality of spiral convection tubes are divided into two rows symmetrically arranged in an upper and lower direction; the plurality of spiral convection tubes in one row are arranged at intervals between the upper heating wire group and the conveying roller, and the plurality of spiral convection tubes in another row are arranged at intervals between the lower heating wire group and the conveying roller;

[0022] The spiral convection pipe comprises a convection air discharge pipe and a spiral air intake pipe;

[0023] The convection air discharge pipe extends in the left-right direction; one end of the spiral air inlet pipe extends to the outside of the heating furnace to input compressed air; the other end of the spiral air inlet pipe is close to the left end or the right end of the convection air discharge pipe, and is coiled around the convection air discharge pipe along the outer circumference of the convection air discharge pipe, and then extends into and communicates with the inner cavity of the convection air discharge pipe at the right end or the left end of the convection air discharge pipe;

[0024] A plurality of blowing nozzles are installed on the outer peripheral surface of the convection air exhaust pipe; the plurality of blowing nozzles are spaced apart along the length direction of the convection air exhaust pipe, and the blowing nozzles are located between two windings of the coiled spiral air inlet pipe; the output end of the blowing nozzle faces the gap between the two adjacent conveying rollers, and the input end of the blowing nozzle is communicated with the inner cavity of the convection air exhaust pipe.

[0025] Furthermore, the top of the heating furnace located in the preheating zone, the ink sintering zone and the multiple annealing zones is provided with multiple exhaust holes, and multiple exhaust hole coverers that can be raised and lowered are installed correspondingly;

[0026] The exhaust hole cover is used to open and close the corresponding exhaust hole.

[0027] Furthermore, a plurality of air delivery pipes are installed on the top and sides of the heating furnace located in the preheating zone, the ink sintering zone and the plurality of annealing zones;

[0028] The air delivery pipe is provided with an input end and a plurality of output ends; the input end of the air delivery pipe is used to be connected with an external compressed air device to input compressed air, and the output end of the air delivery pipe is connected with one end of the cooling air intake pipe or one end of the spiral intake pipe;

[0029] The air delivery pipe located at the top of the heating furnace is used to communicate with the cooling air intake pipe or the spiral intake pipe located above the conveying roller to deliver compressed air;

[0030] The air delivery pipe located at the side of the heating furnace is used to communicate with the cooling air intake pipe or the spiral intake pipe located below the conveying roller to deliver compressed air.

[0031] Furthermore, a plurality of airflow balancing pipes are installed on the top of the heating furnace;

[0032] The multiple air conveying pipes located at the top of the heating furnace are grouped in pairs; the two air conveying pipes in a group are symmetrically distributed above the preheating zone, ink sintering zone or 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 on the left and right, and one end of the air flow balance pipe is also used to connect with external compressed air equipment to input compressed air.

[0033] Furthermore, the heating furnace is also equipped with a plurality of proportional valves;

[0034] The input end of the proportional valve is used to connect with external compressed air equipment to input compressed air; the output end of the proportional valve is used to connect with one end of the air flow balance pipe, or to connect with the input end of the air delivery pipe located on the side of the heating furnace.

[0035] Specifically, the ink glass stays in the preheating zone, the ink sintering zone, and each annealing zone for the same amount of time;

[0036] When used for ink drying, the temperature reduction range of the ink glass in each annealing zone increases gradually from the back to the front, and the temperature reduction range of any annealing zone does not exceed 150°C.

[0037] The beneficial effects of the technical solution of the present invention are as follows: the ink glass production line that is compatible with ink drying and glass tempering can be used for both ink drying and glass tempering, and has better versatility and utilization rate; when used for ink drying, the ink glass used is unmachined, and after the ink glass passes through the preheating zone and the high-temperature sintering zone to complete the drying and curing of the ink, it is then subjected to segmented cooling treatment in multiple annealing zones, so that no internal stress is generated inside the ink glass after it is taken out of the annealing furnace, and the obtained ink glass product has good machining performance, which can improve the dimensional versatility of the ink glass finished product and the flexibility of the production scheduling plan. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a structural schematic diagram of an embodiment of the ink glass production line compatible with ink drying and glass tempering of the present invention;

[0039] Figure 2 It is a structural schematic diagram of an embodiment of a preheating zone or ink sintering zone of the ink glass production line compatible with ink drying and glass tempering of the present invention;

[0040] Figure 3 It is a structural schematic diagram of an embodiment of the annealing zone of the ink glass production line compatible with ink drying and glass tempering of the present invention;

[0041] Figure 4 for Figure 3 An enlarged view of part A;

[0042] Figure 5 It is a structural schematic diagram of an embodiment of the temperature balance tube of the present invention;

[0043] Figure 6 It is a structural schematic diagram of another embodiment of the temperature balance tube of the present invention;

[0044] Figure 7 for Figure 2 An enlarged view of part B;

[0045] Figure 8 for Figure 1 A schematic diagram of a partial structure of one of the annealing zones;

[0046] Among them: heating furnace 1; cold air grid 2; air compressor 3; air storage tank 4; compressed air pipeline 5;

[0047] Preheating zone 11; ink sintering zone 12; annealing zone 13; ink glass 10; spiral convection tube 111; conveying roller 112; heating wire group 113; exhaust hole 114; exhaust hole cover 115; air delivery pipe 116; air flow balance pipe 117; proportional valve 119; temperature balance pipe 131; spiral air inlet pipe 1111; convection air exhaust pipe 1112; cooling air inlet pipe 1311; cooling air exhaust pipe 1312; blowing nozzle 1121; air inlet through hole 13111; blowing through hole 13121. DETAILED DESCRIPTION

[0048] The following is combined with Figure 1-8 The technical solution of the present invention is further illustrated by specific implementation methods.

[0049] The drawings are only used for illustrative purposes and should not be construed as limitations on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, which can be said to be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] An ink glass production line compatible with ink drying and glass tempering, comprising a heating furnace 1 and a cold air grid 2 arranged in sequence in a forward running direction, wherein the heating furnace 1 is provided with a preheating zone 11, an ink sintering zone 12 and a plurality of annealing zones 13 arranged in sequence from back to front;

[0052] The preheating zone 11, the ink sintering zone 12 and the multiple annealing zones 13 are all equipped with multiple heating wire groups 113 and multiple conveying rollers 112; the multiple conveying rollers 112 are arranged at intervals in the front-to-back direction, and the multiple heating wire groups 113 are divided into two rows, and the two rows of heating wire groups 113 are symmetrically distributed up and down with the glass conveying surface as a plane;

[0053] The annealing zone 13 is equipped with a plurality of temperature balancing tubes 131, and the plurality of temperature balancing tubes 131 are divided into two rows symmetrically arranged in an upper and lower direction; the plurality of temperature balancing tubes 131 in one row are arranged at intervals between the upper heating wire group 113 and the conveying roller 112, or between the lower heating wire group 113 and the conveying roller 112; the temperature balancing tubes 131 are used to input cooling air to the corresponding annealing zone 13;

[0054] When used for ink drying, the temperature of the ink sintering zone 12 is higher than the temperature of the preheater 1, and the temperature of the ink sintering zone 12 is close to the glass softening temperature of the ink glass 10 and is the highest temperature; all the temperature balance tubes 131 are enabled, and the temperatures of the multiple annealing zones 13 are sequentially reduced from the back to the front; the temperature of the annealing zone 13 close to the cold air grille 2 is lower than 300°C; the cold air grille 2 turns on the cooling function and is used to reduce the temperature of the ink glass 10 from 300°C to room temperature;

[0055] When used for tempering ink glass, the temperature of the annealing zone 13 close to the cold air grid 2 is close to the glass softening temperature of the ink glass 10 and is the highest temperature; all the temperature balance tubes 131 are disabled; the temperatures of the preheating zone 11, the ink sintering zone 12 and the remaining multiple annealing zones 13 are increased in sequence, and the cold air grid 2 includes quenching and cooling functions, which is used to temper and cool the ink glass 10.

[0056] Figure 1 This is a schematic diagram of the structure of the ink glass production line compatible with ink drying and glass tempering of the present invention, Figure 2 It is a structural schematic diagram of the preheating zone 11 or the ink sintering zone 12 of the ink glass production line compatible with ink drying and glass tempering of the present invention, Figure 3 It is a structural schematic diagram of the annealing zone 13 of the ink glass production line compatible with ink drying and glass tempering of the present invention.

[0057] like Figure 1-3As shown, when used for ink drying, multiple temperature balance tubes 131 distributed in multiple annealing zones 13 respectively transport cooling air to the annealing zones 13, and the flow rate of cooling air input into the multiple annealing zones 13 increases successively, so that the temperature of the temperature field of the multiple annealing zones 13 decreases successively; the ink glass 10 transported forward by multiple conveying rollers 112 first enters the ink sintering zone 12 with the highest temperature and close to the softening temperature of the glass after being preheated in the preheating zone 11, and the ink penetrates into the softened glass surface and sintered under the high temperature state of the ink sintering zone 12, and the ink glass 10 that has completed ink sintering enters the multiple annealing zones 13 in sequence, so that the temperature of the ink glass 10 is gradually reduced, thereby avoiding the generation of internal stress in the ink glass 10 during the cooling process, so that the ink glass 10 after leaving the furnace has the processing performance of being cut and edged.

[0058] In the above process, the ink glass 10 entering the ink drying and glass tempering compatible ink glass production line of the present invention is not machined, and the annealed ink glass 10 has good machining performance, so that the inventory ink glass 10 has universal cuttable sizes and can also improve the flexibility of production scheduling.

[0059] After the machining of the ink glass 10 is completed, the machined ink glass 10 is input into the ink drying and glass tempering compatible ink glass production line of the present invention, and the temperature of the annealing zone 13 close to the cold air grid 2 is set to the highest temperature, close to the glass softening temperature of the ink glass 10. The ink glass 10 first passes through the gradually increasing preheating zone 11, the ink sintering zone 12 and the remaining multiple annealing zones 13 for heating, and then enters the annealing zone 13 close to the cold air grid 2 for heating and reaches a temperature close to the glass softening point, and then comes out of the furnace, and finally the ink glass 10 is tempered and cooled by the cold air grid 2, so as to make the ink glass 10 that can be installed and used.

[0060] The equipment can be used for both ink drying and glass tempering, and has better versatility and utilization rate.

[0061] Specifically, the temperature balance pipe 131 includes a cooling air exhaust pipe 1312 and two cooling air intake pipes 1311;

[0062] The cooling air discharge pipe 1312 extends in the left-right direction; one end of the cooling air inlet pipe 1311 extends outside the heating furnace to input compressed air; the other ends of the two cooling air inlet pipes 1311 extend from the left and right ends of the cooling air discharge pipe 1312 respectively, and are close to the middle of the cooling air discharge pipe 1312; the gap between the outer peripheral surface of the cooling air inlet pipe 1311 and the inner wall of the cooling air discharge pipe 1312 forms a cooling air mixing chamber;

[0063] A plurality of air intake holes 13111 are provided at the top of the cooling air intake pipe 1311 in the cooling air exhaust pipe 1312, and the plurality of air intake holes 13111 are spaced apart along the length direction of the cooling air intake pipe 1311;

[0064] The outer peripheral surface of the cooling air exhaust pipe 1312 is provided with a plurality of air blowing holes 13121 arranged at intervals, and the cooling air exhaust pipe 1312 is located between two adjacent conveying rollers 112 in front and behind.

[0065] like Figure 3-5 As shown, compressed air passes through the cooling air inlet pipe 1311 and enters the cooling air mixing chamber located between the outer peripheral surface of the cooling air inlet pipe 1311 and the inner wall of the cooling air exhaust pipe 1312 through a plurality of air inlet holes 13111, so that the air pressure of the compressed air located in the cooling air mixing chamber is equalized, and the compressed air with equalized air pressure is output from the plurality of air blowing holes 13121 to the annealing zone 13, so that the temperature of the temperature field in the corresponding annealing zone 13 is reduced, thereby reducing the temperature of the ink glass 10 passing through.

[0066] Furthermore, two opposite surfaces of two cooling air exhaust pipes 1312 located in the same annealing zone 13 and adjacent to each other are provided with a plurality of blowing holes 13121;

[0067] The plurality of air blowing holes 13121 are divided into two rows; the plurality of air blowing holes 13121 in one row are spaced apart along the length direction of the cooling air discharge pipe 1312, and the two rows of air blowing holes 13121 are symmetrically distributed front to back along the radial direction of the cooling air discharge pipe 1312, and are distributed on the same horizontal plane parallel to the top surfaces of the plurality of conveying rollers 112;

[0068] The two opposite surfaces of the two cooling air exhaust pipes 1312 located in different annealing zones 13 and adjacent to each other in front and behind do not have the blowing holes 13121 .

[0069] like Figure 3-5 As shown, the cooling air output from the two blowing holes 13121 located in the same annealing zone 13 and facing each other interfere with each other, so that the cooling air distribution in the same annealing zone 13 can be more uniform, thereby improving the distribution uniformity of the temperature field in the annealing zone 13, thereby improving the cooling quality of the ink glass 10, and avoiding the internal stress of the ink glass 10 due to the uneven distribution of the temperature field.

[0070] like Figure 6The cooling air exhaust pipe 1312 shown is a schematic structural diagram of any one of the two cooling air exhaust pipes 1312 adjacent to each other in front and behind and located in different annealing zones 13. No blowing hole 13121 is provided on the side of the cooling air exhaust pipe 1312 facing the other annealing zone 13. Since the temperatures of the two adjacent annealing zones 13 are different, this is achieved by adjusting the flow rate of cooling air input into the annealing zone 13 through the cooling air exhaust pipe 1312, resulting in different flow rates of cooling air in the two adjacent annealing zones 13. Therefore, such an arrangement can prevent the cooling air output by the cooling air exhaust pipe 1312 located at the front end or rear end of one annealing zone 13 from affecting the uniformity of the temperature distribution of the temperature field at the front end or rear end of another annealing zone 13.

[0071] Furthermore, the preheating zone 11 and the ink sintering zone 12 are both equipped with a plurality of spiral convection tubes 111;

[0072] The plurality of spiral convection tubes 111 are divided into two rows symmetrically arranged in the upper and lower directions; the plurality of spiral convection tubes 111 in one row are arranged at intervals between the upper heating wire group 113 and the conveying roller 112, and the plurality of spiral convection tubes 111 in another row are arranged at intervals between the lower heating wire group 113 and the conveying roller 112;

[0073] The spiral convection pipe 111 includes a convection air discharge pipe 1112 and a spiral air intake pipe 1111;

[0074] The convection air discharge pipe 1112 extends in the left-right direction; one end of the spiral air inlet pipe 1111 extends outside the heating furnace to input compressed air; the other end of the spiral air inlet pipe 1111 is close to the left end or the right end of the convection air discharge pipe 1112, and is coiled around the convection air discharge pipe 1112 along the outer circumference of the convection air discharge pipe 1112, and then extends into and communicates with the inner cavity of the convection air discharge pipe 1112 at the right end or the left end of the convection air discharge pipe 1112;

[0075] A plurality of blowing nozzles 1121 are installed on the outer peripheral surface of the convection air exhaust pipe 1112; the plurality of blowing nozzles 1121 are spaced apart along the length direction of the convection air exhaust pipe 1112, and the blowing nozzles 1121 are located between the two windings of the coiled spiral air inlet pipe 1111; the output end of the blowing nozzle 1121 faces the gap between the two adjacent conveying rollers 112, and the input end of the blowing nozzle 1121 is connected to the inner cavity of the convection air exhaust pipe 1112.

[0076] like Figure 2 and Figure 7As shown, the air input through the spiral air inlet pipe 1111 is heated in the upper furnace cavity or the lower furnace cavity of the preheating zone 11 or the ink sintering zone 12, and then enters the inner cavity of the convection air exhaust pipe 1112, and then blows the heated air to the preheating zone 11 and the ink sintering zone 12 through a plurality of blowing nozzles 1121 distributed on the outer peripheral surface of the convection air exhaust pipe 1112, so that air convection can be formed in the preheating zone 11 or the ink sintering zone 12 to improve the heat exchange efficiency of the ink glass 10.

[0077] Furthermore, the top of the heating furnace located in the preheating zone 11, the ink sintering zone 12 and the multiple annealing zones 13 are all provided with multiple exhaust holes 114, and correspondingly, multiple exhaust hole coverers 115 that can be raised and lowered are installed;

[0078] The exhaust hole cover 115 is used to open and close the corresponding exhaust hole 114 .

[0079] like Figure 2 and Figure 3 As shown, part of the hot air in the heating furnace is discharged to the outside through the exhaust hole 114 to avoid excessive air pressure in the heating furnace due to the input convection air or cooling air; when the temperature is too high locally, part of the hot air can also be discharged to the outside through the corresponding exhaust hole 114 to balance the uniformity of the internal temperature distribution.

[0080] Furthermore, a plurality of air delivery pipes 116 are installed on the top and sides of the heating furnace 1 located in the preheating zone 11, the ink sintering zone 12 and the plurality of annealing zones 13;

[0081] The air delivery pipe 116 is provided with an input end and a plurality of output ends; the input end of the air delivery pipe 116 is used to communicate with external compressed air equipment to input compressed air, and the output end of the air delivery pipe 116 is connected to one end of the cooling air intake pipe 1311 or one end of the spiral intake pipe 1111;

[0082] The air delivery pipe 116 located at the top of the heating furnace 1 is used to communicate with the cooling air intake pipe 1311 or the spiral intake pipe 1111 located above the conveying roller 112 to deliver compressed air;

[0083] The air delivery pipe 116 located on the side of the heating furnace 1 is used to communicate with the cooling air intake pipe 1311 or the spiral intake pipe 1111 located below the conveying roller 112 to deliver compressed air.

[0084] like Figure 1As shown, compressed air is provided to the cooling air intake pipe 1311 or the spiral intake pipe 1111 located above the conveying roller 112 through the air delivery pipe 116 located at the top of the heating furnace; and compressed air is provided to the cooling air intake pipe 1311 or the spiral intake pipe 1111 located below the conveying roller 112 through the air delivery pipe 116 located at the side of the heating furnace.

[0085] Furthermore, a plurality of airflow balancing pipes 117 are installed on the top of the heating furnace 1;

[0086] The multiple air delivery pipes 116 located at the top of the heating furnace 1 are grouped in pairs; a group of two air delivery pipes 116 are symmetrically distributed above the preheating zone 11, the ink sintering zone 12 or the annealing zone 13; the two ends of the air flow balance pipe 117 are respectively connected to the two input ends of the two air delivery pipes 116 opposite to each other on the left and right, and one end of the air flow balance pipe 117 is also used to connect with external compressed air equipment to input compressed air.

[0087] like Figure 1 and Figure 8 As shown, through the connection of the airflow balance pipe 117, the airflow rate of the compressed air input by the two cooling air inlet pipes 1311 above the preheating zone 11 above the conveying roller 112 is the same, or the airflow rate of the compressed air input by the two cooling air inlet pipes 1311 above the ink sintering zone 12 is the same, or the airflow rate of the compressed air input by the two spiral inlet pipes 1111 of any annealing zone 13 is the same.

[0088] Furthermore, the heating furnace is also equipped with a plurality of proportional valves 119;

[0089] The input end of the proportional valve 119 is used to connect with external compressed air equipment to input compressed air; the output end of the proportional valve 119 is used to connect with one end of the air flow balance pipe 117, or to connect with the input end of the air delivery pipe 116 located on the side of the heating furnace 1.

[0090] like Figure 1 and Figure 8 As shown, the air flow rate entering the corresponding air delivery pipe 116 can be controlled by the proportional valve 119 .

[0091] In a preferred embodiment, an air compressor 3, an air storage tank 4 and a compressed air pipeline 5 are installed on the side of the heating furnace 1, the input end of the air storage tank 4 is connected to the output end of the air compressor 3, and the output end of the air storage tank 4 is connected to the input end of the proportional valve 119 through the compressed air pipeline 5.

[0092] By delivering compressed air to the proportional valve 119 through the air tank 4, the adverse effect of the unstable output pressure of the air compressor 3 can be avoided. The air compressor 3, the air tank 4 and the compressed air pipeline 5 are arranged on the side of the heating furnace 1, which can improve the supporting integrity of the ink drying and glass tempering compatible ink glass production line of the present invention and avoid the effects of unstable air pressure and insufficient flow caused by the shared air compressor or air tank used for other production equipment.

[0093] Specifically, the ink glass 10 stays in the preheating zone 11, the ink sintering zone 12 and each annealing zone 13 for the same time;

[0094] When used for ink drying, the temperature reduction range of the ink glass 10 in each annealing zone 13 increases gradually from the back to the front, and the temperature reduction range of any annealing zone 13 does not exceed 150°C.

[0095] In this way, the ink glass 10 can pass through the preheating zone 11 , the ink sintering zone 12 and each annealing zone 13 from back to front at a uniform linear speed, which can improve the running stability of the ink glass 10 .

[0096] Between 500°C and the softening point of the glass, a slower cooling rate is used to avoid stress inside the glass during cooling.

[0097] In summary, if Figure 1-5 In the embodiment of the present invention shown, the ink glass production line compatible with ink drying and glass tempering can be used for both ink drying and glass tempering, and has better versatility and utilization rate; when used for ink drying, the ink glass 10 is not machined. After the ink glass 10 passes through the preheating zone 11 and the high-temperature sintering zone 2 to complete the drying and curing of the ink, it is subjected to segmented cooling treatment in multiple annealing zones 13, so that no internal stress is generated inside the ink glass 10 after it is taken out of the furnace, and it has good machining performance, which can improve the dimensional versatility of the ink glass finished product and the flexibility of the production scheduling plan.

[0098] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the scope of protection of the present invention.

Claims

1. An ink glass production line compatible with ink drying and glass tempering, comprising a heating furnace and a cold air grid arranged in sequence along the forward running direction, characterized in that: The heating furnace is provided with a preheating zone, an ink sintering zone and a plurality of annealing zones arranged in sequence from back to front; The preheating zone, ink sintering zone and multiple annealing zones are all equipped with multiple heating wire groups and multiple conveying rollers; the multiple conveying rollers are arranged at intervals along the front-to-back direction, and the multiple heating wire groups are divided into two rows, and the two rows of heating wire groups are symmetrically distributed up and down with the glass conveying surface as the plane; The annealing zone is equipped with a plurality of temperature balancing tubes, which are divided into two rows symmetrically arranged in an upper and lower direction; the plurality of temperature balancing tubes in one row are arranged at intervals between the upper heating wire group and the conveying roller, or between the lower heating wire group and the conveying roller; the temperature balancing tubes are used to input cooling air to the corresponding annealing zone; When used for ink drying, the temperature of the ink sintering zone is higher than the temperature of the preheater, the temperature of the ink sintering zone is close to the glass softening temperature of the ink glass and is the highest temperature; all the temperature balance tubes are enabled, and the temperatures of the multiple annealing zones are sequentially reduced from the back to the front; the temperature of the annealing zone close to the cold air grille is lower than °C; the cold air grille turns on the cooling function and is used to reduce the temperature of the ink glass from °C to room temperature; When used for tempering ink glass, the temperature of the annealing zone close to the cold air grid is close to the glass softening temperature of the ink glass and is the highest temperature; all the temperature balance tubes are disabled; the temperatures of the preheating zone, the ink sintering zone and the remaining multiple annealing zones are increased in sequence, and the cold air grid includes quenching and cooling functions, which is used to temper and cool the ink glass.

2. The ink drying and glass tempering compatible ink glass production line according to claim 1 is characterized in that: The temperature balance pipe includes a cooling air exhaust pipe and two cooling air intake pipes; The cooling air discharge pipe extends in the left-right direction; one end of the cooling air inlet pipe extends outside the heating furnace to input compressed air; the other ends of the two cooling air inlet pipes extend from the left and right ends of the cooling air discharge pipe respectively and are close to the middle of the cooling air discharge pipe; the gap between the outer peripheral surface of the cooling air inlet pipe and the inner wall of the cooling air discharge pipe forms a cooling air mixing chamber; A plurality of air intake holes are provided at the top of the cooling air intake pipe located in the cooling air exhaust pipe, and the plurality of air intake holes are distributed at intervals along the length direction of the cooling air intake pipe; The outer peripheral surface of the cooling air exhaust pipe is provided with a plurality of air blowing holes arranged at intervals, and the cooling air exhaust pipe is located between two adjacent conveying rollers in the front and rear directions.

3. The ink drying and glass tempering compatible ink glass production line according to claim 2 is characterized in that: Two opposite surfaces of two cooling air exhaust pipes located in the same annealing zone and adjacent to each other are each provided with a plurality of blowing holes; The plurality of air blowing holes are divided into two rows; the plurality of air blowing holes in one row are spaced apart along the length direction of the cooling air discharge pipe, and the air blowing holes in two rows are symmetrically distributed front-to-back along the radial direction of the cooling air discharge pipe, and are distributed on the same horizontal plane parallel to the top surfaces of the plurality of conveying rollers; The two opposite surfaces of the two cooling air exhaust pipes located in different annealing zones and adjacent to each other in front and behind do not have the blowing through holes.

4. The ink drying and glass tempering compatible ink glass production line according to claim 2, characterized in that: The preheating zone and the ink sintering zone are also equipped with a plurality of spiral convection tubes; The plurality of spiral convection tubes are divided into two rows symmetrically arranged in an upper and lower direction; the plurality of spiral convection tubes in one row are arranged at intervals between the upper heating wire group and the conveying roller, and the plurality of spiral convection tubes in another row are arranged at intervals between the lower heating wire group and the conveying roller; The spiral convection pipe comprises a convection air discharge pipe and a spiral air intake pipe; The convection air discharge pipe extends in the left-right direction; one end of the spiral air inlet pipe extends to the outside of the heating furnace to input compressed air; the other end of the spiral air inlet pipe is close to the left end or the right end of the convection air discharge pipe, and is coiled around the convection air discharge pipe along the outer circumference of the convection air discharge pipe, and then extends into and communicates with the inner cavity of the convection air discharge pipe at the right end or the left end of the convection air discharge pipe; A plurality of blowing nozzles are installed on the outer peripheral surface of the convection air exhaust pipe; the plurality of blowing nozzles are spaced apart along the length direction of the convection air exhaust pipe, and the blowing nozzles are located between two windings of the coiled spiral air inlet pipe; the output end of the blowing nozzle faces the gap between the two adjacent conveying rollers, and the input end of the blowing nozzle is communicated with the inner cavity of the convection air exhaust pipe.

5. The ink drying and glass tempering compatible ink glass production line according to claim 1, characterized in that: The top of the heating furnace located in the preheating zone, the ink sintering zone and the multiple annealing zones is provided with multiple exhaust holes, and correspondingly multiple exhaust hole coverers that can be raised and lowered are installed; The exhaust hole cover is used to open and close the corresponding exhaust hole.

6. The ink drying and glass tempering compatible ink glass production line according to claim 4, characterized in that: A plurality of air delivery pipes are also installed on the top and sides of the heating furnace located in the preheating zone, the ink sintering zone and the plurality of annealing zones; The air delivery pipe is provided with an input end and a plurality of output ends; the input end of the air delivery pipe is used to be connected with an external compressed air device to input compressed air, and the output end of the air delivery pipe is connected with one end of the cooling air intake pipe or one end of the spiral intake pipe; The air delivery pipe located at the top of the heating furnace is used to communicate with the cooling air intake pipe or the spiral intake pipe located above the conveying roller to deliver compressed air; The air delivery pipe located at the side of the heating furnace is used to communicate with the cooling air intake pipe or the spiral intake pipe located below the conveying roller to deliver compressed air.

7. The ink drying and glass tempering compatible ink glass production line according to claim 6, characterized in that: A plurality of airflow balancing pipes are also installed on the top of the heating furnace; The multiple air conveying pipes located at the top of the heating furnace are grouped in pairs; the two air conveying pipes in a group are symmetrically distributed above the preheating zone, ink sintering zone or 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 on the left and right, and one end of the air flow balance pipe is also used to connect with external compressed air equipment to input compressed air.

8. The ink drying and glass tempering compatible ink glass production line according to claim 7, characterized in that: The heating furnace is also equipped with a plurality of proportional valves; The input end of the proportional valve is used to connect with external compressed air equipment to input compressed air; the output end of the proportional valve is used to connect with one end of the air flow balance pipe, or to connect with the input end of the air delivery pipe located on the side of the heating furnace.

9. The ink drying and glass tempering compatible ink glass production line according to claim 4, characterized in that: The ink glass stays in the preheating zone, ink sintering zone and each annealing zone for the same amount of time; When used for ink drying, the temperature reduction range of the ink glass in each annealing zone increases gradually from the back to the front, and the temperature reduction range of any annealing zone does not exceed 150°C.

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