CN209098501U - Heating tube and heating module with the heating tube - Google Patents

Abstract

The utility model discloses a kind of heating tube and with the heating module of the heating tube.The heating tube includes: tube body, and tube body has lumen；Multiple heating parts, multiple heating parts are located in lumen, multiple heating part series connection, at least two resistance in plurality of heating part is unequal each other and/or multiple heating parts at least two size density it is unequal each other, at least two in multiple heating parts are opposite with the different piece of tube body on the length direction of tube body；And first lead division and the second lead division, the first lead division be electrically connected with one in multiple heating parts, the second lead division is electrically connected with another in multiple heating parts.There are low power consumption and other advantages according to the heating tube of the utility model embodiment.

Description

Heating tube and heating module having the same

technical field

The utility model relates to the field of glass processing, in particular to a heating tube and a heating module with the heating tube.

Background technique

With the ever-changing development needs of industries such as smart phones and new integrated central control display technology for vehicles, curved display technology has become more and more popular in the market due to its stylish appearance and beautiful shape. At the same time, with the development needs of 5G technology, 3D glass is the most critical part of curved display technology, and its production technology requirements are getting higher and higher. The heating device of the existing 3D glass manufacturing equipment has the defect of large energy consumption.

Utility model content

The purpose of the present invention is to provide a heating tube and a heating module having the heating tube in order to overcome the problems existing in the prior art.

In order to achieve the above object, a first aspect of the present invention provides a heating tube, the heating tube includes: a tube body, the tube body has a tube cavity; a plurality of heating parts, the plurality of the heating parts are arranged in the tube In the cavity, a plurality of the heating parts are connected in series, wherein the resistances of at least two of the heating parts are not equal to each other and/or the length densities of the at least two of the heating parts are not equal to each other , the at least two of the plurality of the heating parts are opposite to different parts of the pipe body in the length direction of the pipe body; and a first lead-out portion and a second lead-out portion, the first lead-out portion The second lead-out portion is electrically connected to one of the plurality of heating portions, and the second lead portion is electrically connected to the other of the plurality of heating portions.

The heating pipe according to the present invention has the advantage of low energy consumption.

Preferably, a plurality of the heating parts include a main heating part and a side heating part, an end of the main heating part is electrically connected with an end of the side heating part, wherein the resistance of the side heating part is connected with the main heating part. The resistance of the heating parts is not equal and/or the length density of the side heating parts is not equal to the length density of the main heating part.

Preferably, the plurality of heating parts include a first side heating part, a second side heating part and an intermediate heating part, the first end of the intermediate heating part is electrically connected with the end part of the first side heating part, so The second end of the intermediate heating part is electrically connected to the end of the second side heating part, wherein the resistance of the first side heating part is not equal to the resistance of the intermediate heating part and/or the first side The length density of the heating part is not equal to the length density of the intermediate heating part, the resistance of the second side heating part is not equal to the resistance of the intermediate heating part and/or the length density of the second side heating part is equal to The length densities of the intermediate heating parts are not equal.

Preferably, the electrical resistance of the first side heating portion is equal to the electrical resistance of the second side heating portion and/or the length density of the first side heating portion is equal to the length density of the second side heating portion.

Preferably, a plurality of the heating parts constitute a plurality of the heating part groups, and the plurality of the heating part groups are spaced apart along a first direction, and the first direction is perpendicular to the length direction of the pipe body, each Each of the heating part groups includes a first side heating part, a second side heating part and an intermediate heating part, the first end of the intermediate heating part is electrically connected with the end part of the first side heating part, the intermediate heating part The second end of the heating part is electrically connected to the end of the second side heating part, wherein the resistance of the first side heating part is not equal to the resistance of the middle heating part and/or the resistance of the first side heating part is not equal The length density is not equal to the length density of the middle heating part, the resistance of the second side heating part is not equal to the resistance of the middle heating part and/or the length density of the second side heating part is not equal to the middle heating part The length density of the heating section is not equal.

Preferably, the electrical resistances of the first side heating parts of the plurality of heating part groups are equal to each other and/or the length densities of the first side heating parts of the plurality of heating part groups are equal to each other, and the plurality of the The resistances of the second side heating parts of the heating part group are equal to each other and/or the length densities of the second side heating parts of the plurality of heating part groups are equal to each other.

Preferably, the electrical resistance of the first side heating portion is equal to the electrical resistance of the second side heating portion and/or the length density of the first side heating portion is equal to the length density of the second side heating portion.

Preferably, each of the heating portions is configured in a helical shape, and at least one of a pitch and a diameter of the at least two of the plurality of heating portions is not equal to each other.

A second aspect of the present invention provides a heating module comprising the heating pipe according to the first aspect of the present invention.

According to the heating module of the present invention, the energy consumption is low.

Preferably, the heating module comprises: an upper heating plate and a lower heating plate; and a plurality of the heating pipes, and a part of the plurality of the heating pipes is arranged on the upper heating plate or on the upper heating plate Inside, the rest of a plurality of the heating tubes are provided on or within the lower heating plate.

Description of drawings

1 is a schematic structural diagram of a 3D glass hot bending machine according to an embodiment of the present invention;

2 is a schematic structural diagram of a 3D glass hot bending machine according to an embodiment of the present invention;

3 is a schematic structural diagram of a first cooling member (second cooling member) of a 3D glass bending machine according to an embodiment of the present invention;

4 is a schematic structural diagram of a 3D glass hot bending device according to an embodiment of the present invention (before heating);

5 is a schematic structural diagram of a 3D glass hot bending device according to an embodiment of the present invention (after heating);

6 is a partial structural schematic diagram of a 3D glass hot bending device according to an embodiment of the present invention;

7 is a schematic structural diagram of a 3D glass hot bending device according to another embodiment of the present invention (before heating);

8 is a schematic structural diagram of a 3D glass hot bending device according to another embodiment of the present invention (after heating);

9 is a partial structural schematic diagram of a 3D glass hot bending device according to an embodiment of the present invention;

10 is a schematic diagram of a partial structure of a 3D glass hot bending device according to an embodiment of the present invention;

11 is a schematic diagram of a partial structure of a 3D glass hot bending device according to an embodiment of the present invention;

12 is a schematic structural diagram of a heating pipe according to an embodiment of the present invention;

13 is a schematic structural diagram of a heating tube according to another embodiment of the present invention;

14 is a schematic structural diagram of a connecting plate of a 3D glass hot bending device according to an embodiment of the present invention.

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to be used to explain the present invention, but should not be construed as a limitation of the present invention.

The heating pipe 60 according to the embodiment of the present invention will be described below with reference to the accompanying drawings. As shown in FIGS. 12 and 13 , the heating pipe 60 according to the embodiment of the present invention includes a pipe body 610 , a plurality of heating parts 620 , a first lead-out part 631 and a second lead-out part 632 . The first lead-out part 631 may be electrically connected to one of the plurality of heating parts 620 , and the second lead-out part 632 may be electrically connected to the other of the plurality of heating parts 620 .

The tube body 610 has a lumen 611 , a plurality of heating parts 620 are arranged in the lumen 611 , and the plurality of heating parts 620 are connected in series. Wherein, the resistances of at least two of the plurality of heating parts 620 are not equal to each other and/or the length densities of the at least two of the plurality of heating parts 620 are not equal to each other, and the at least two of the plurality of heating parts 620 are The length direction of the pipe body 610 is opposite to different parts of the pipe body 610 .

The length density of a heating portion 620 refers to the ratio of the length of the heating portion 620 to the length of the portion of the pipe body 610 opposite to the heating portion 620 . If the heating portion 620 is non-linear (eg, corrugated, helical), the length of the heating portion 620 refers to the actual length of the heating portion 620 after the heating portion 620 is straightened.

Different parts of the glass sheet require different amounts of heat when making 3D glass products using the thermal bending method. Specifically, the part that needs to be bent needs to absorb more heat, and the part that does not need to be bent can absorb less heat. The existing heating pipe can only dissipate heat evenly, that is, the heat dissipated by different parts of the existing heating pipe is basically equal, which leads to the part of the glass plate that does not need to be heated to the highest temperature (actually does not need to be bent). is heated to the highest temperature), so there is a waste of thermal energy.

The heating pipe 60 according to the embodiment of the present invention makes the resistances of the at least two of the plurality of heating parts 620 unequal to each other and/or the length densities of the at least two of the plurality of heating parts 620 to be unequal to each other. The amounts of heat generated by the at least two heating parts 620 may be made unequal to each other.

Since the at least two of the plurality of heating parts 620 are opposed to different parts of the pipe body 610 in the length direction of the pipe body 610 , the heat radiated from the different parts of the heating pipe 60 can be made unequal to each other. Specifically, the part of the heating tube 60 that emits more heat can be opposed to the part of the glass plate 2 that needs to be bent, and the part of the heating tube 60 that emits less heat can be opposed to the part of the glass plate 2 that does not need to be bent , so as to reduce the energy consumption of the heating pipe 60 .

Therefore, the heating pipe 60 according to the embodiment of the present invention has the advantages of low energy consumption and the like. Compared with the existing heating pipe, the heating pipe 60 according to the embodiment of the present invention can reduce the energy consumption by 5%-10%.

As shown in FIGS. 1-14 , in some embodiments of the present invention, the 3D glass bending machine 1 may include a furnace body 10 , a first separator 121 , a second separator 122 , a preheating device 20 , and an annealing device 30 and 3D glass bending device 40.

The furnace body 10 may have an accommodating cavity 110, and the first partition plate 121 and the second partition plate 122 may be spaced apart in the accommodating cavity 110 and divide the accommodating cavity 110 into a preheating cavity 111, a bending cavity 112 and an annealing cavity 113.

As shown in FIGS. 1 and 2 , each of the first partition plate 121 and the second partition plate 122 may be provided movably up and down. The 3D glass bending machine 1 may further include a first spacer driving part 131 and a second spacer driving part 132, and the first spacer driving part 131 may be connected with the first spacer 121 to drive the first spacer 121 in an up-down direction Moving, the second partition driving member 132 may be connected with the second partition 122 to drive the second partition 122 to move in the up-down direction.

When the preheating operation, the hot bending operation and the annealing operation are performed, the first partition driving member 131 can drive the first partition 121 to move downward, and the second partition driving member 132 can drive the second partition 122 to move downward, In order to isolate (isolate) the preheating chamber 111 from the hot bending chamber 112 , and isolate (isolate) the hot bending chamber 112 from the annealing chamber 113 .

When the preheating operation is over, the first spacer driving member 131 can drive the first spacer 121 to move upward, so as to move the glass plate 2 from the preheating chamber 111 to the bending chamber 112; The spacer driving member 132 can drive the second spacer 122 to move upward, so as to move the 3D glass article 3 from the heat bending chamber 112 to the annealing chamber 113 .

Preferably, the first partition plate 121 can be arranged vertically, and the second partition plate 122 can also be arranged vertically.

As shown in FIG. 1 and FIG. 2 , the preheating device 20 may be provided in the preheating chamber 111 , and the annealing device 30 may be provided in the annealing chamber 113 .

Preferably, there may be multiple preheating chambers 111 , multiple preheating devices 20 , and multiple preheating devices 20 may be provided in the multiple preheating chambers 111 in one-to-one correspondence. There may be multiple annealing chambers 113 , multiple annealing devices 30 , and multiple annealing devices 30 may be provided in the multiple annealing chambers 113 in one-to-one correspondence. Accordingly, the first separators 121 may be plural to form a plurality of preheating chambers 111 , and the second separators 122 may be plural to form a plurality of annealing chambers 113 .

In other words, the number of preheating chambers 111 can be equal to the number of preheating devices 20, the number of annealing chambers 113 can be equal to the number of annealing devices 30, one preheating device 20 can be arranged in one preheating chamber 111, and one annealing device 30 can be Set in an annealing chamber 113 .

As shown in FIGS. 1 and 2 , in one embodiment of the present invention, the preheating device 20 may include a preheating support 210 , a lower preheating plate 220 , an upper preheating plate 230 , an upper preheating piece 240 and a lower preheating plate 220 . The heating element 250, when the glass plate 2 is preheated, the glass plate 2 can be placed on the preheating support 210.

The lower preheating plate 220 may be located below the upper end of the preheating bracket 210 , and the upper preheating plate 230 may be located above the upper end of the preheating bracket 210 . The upper preheating member 240 may be disposed on or in the upper preheating plate 230 , and the lower preheating member 250 may be disposed on or in the lower preheating plate 220 . Among them, the up-down direction is shown by the arrow A in FIG. 1 .

In the prior art, a glass sheet is sandwiched between an upper mold and a lower mold, and by heating the upper mold and the lower mold, heat is transferred to the glass sheet to achieve preheating of the glass sheet.

Since the glass plate 2 is placed on the preheating bracket 210 , the glass plate 2 can be directly heated, so that the heat can be transferred to the glass plate 2 more efficiently. Therefore, by using the preheating device 20 to preheat the glass plate 2, energy consumption can be reduced compared to preheating the glass plate by heating the upper mold and the lower mold, that is, the preheating device 20 has the advantage of low energy consumption. The reason why the present application does not need to clamp the glass plate 2 with the upper mold and the lower mold will be described in detail below.

As shown in FIGS. 1 and 2 , the preheating bracket 210 may include a plurality of preheating support columns 211 , and the plurality of preheating support columns 211 may be spaced apart. The upper edges or upper surfaces of the plurality of preheating support columns 211 may be located on the same level.

The upper preheating plate 230 is arranged to move up and down, for example, the upper preheating plate 230 can be driven to move up and down by an air cylinder, an electric cylinder, or the like. When placing the glass plate 2 on the preheating rack 210 or removing the glass plate 2 from the preheating rack 210 , the upper preheating plate 230 can be moved upward to facilitate the handling of the glass plate 2 . When the glass sheet 2 is preheated, the upper preheating plate 230 may be moved downward to heat the glass sheet 2 .

Both the upper preheating part 240 and the lower preheating part 250 may be the heating pipe 60 . As shown in FIGS. 12 and 13 , the heating pipe 60 may include a pipe body 610 , a plurality of heating parts 620 , a first lead-out part 631 and a second lead-out part 632 . The first lead-out part 631 may be electrically connected to one of the plurality of heating parts 620 , and the second lead-out part 632 may be electrically connected to the other of the plurality of heating parts 620 .

The pipe body 610 may have a lumen 611, a plurality of heating parts 620 may be provided in the lumen 611, and the plurality of heating parts 620 may be connected in series. Wherein, the resistances of at least two of the plurality of heating parts 620 may be unequal to each other and/or the length density of the at least two of the plurality of heating parts 620 may be unequal to each other, and the at least two of the plurality of heating parts 620 may not be equal to each other. Each of them may be opposite to different parts of the tube body 610 in the length direction of the tube body 610 .

The length density of a heating portion 620 refers to the ratio of the length of the heating portion 620 to the length of the portion of the pipe body 610 opposite to the heating portion 620 . If the heating portion 620 is non-linear (eg, corrugated, helical), the length of the heating portion 620 refers to the actual length of the heating portion 620 after the heating portion 620 is straightened.

Different parts of the glass sheet require different amounts of heat when making 3D glass products using the thermal bending method. Specifically, the part that needs to be bent needs to absorb more heat, and the part that does not need to be bent can absorb less heat. The existing heating pipe can only dissipate heat evenly, that is, the heat dissipated by different parts of the existing heating pipe is basically equal, which leads to the part of the glass plate that does not need to be heated to the highest temperature (actually does not need to be bent). is heated to the highest temperature), so there is a waste of thermal energy.

The heating pipe 60 according to the embodiment of the present invention makes the resistances of the at least two of the plurality of heating parts 620 unequal to each other and/or the length densities of the at least two of the plurality of heating parts 620 to be unequal to each other. The amounts of heat generated by the at least two heating parts 620 may be made unequal to each other.

Since the at least two of the plurality of heating parts 620 are opposed to different parts of the pipe body 610 in the length direction of the pipe body 610 , the heat radiated from the different parts of the heating pipe 60 can be made unequal to each other. Specifically, the part of the heating tube 60 that emits more heat can be opposed to the part of the glass plate 2 that needs to be bent, and the part of the heating tube 60 that emits less heat can be opposed to the part of the glass plate 2 that does not need to be bent , so as to reduce the energy consumption of the heating pipe 60 .

Therefore, the heating pipe 60 according to the embodiment of the present invention has the advantages of low energy consumption and the like. Compared with the existing heating pipe, the heating pipe 60 according to the embodiment of the present invention can reduce the energy consumption by 5%-10%.

The heating pipe 60 according to the embodiment of the present invention is not limited to being used for preheating the bracket 210 . According to the actual hot bending shape of the glass plate 2, the heating tube 60 can be designed as two temperature zones, three temperature zones or more than four temperature zones. According to the specific shape of the mold, its heat dissipation and heat preservation capacity can be calculated. The area of the heating pipe 60 opposite to the part of the mold where heat dissipation is faster and the hot bending part of the glass plate 2 can be used as a high temperature area. The relative area of the part with better thermal insulation performance can be used as a low temperature area.

In one example of the present invention, the plurality of heating parts 620 may include a main heating part and a side heating part, an end of the main heating part may be electrically connected with an end of the side heating part, and the resistance of the side heating part is the same as that of the side heating part. The electrical resistance of the main heating portion may not be equal and/or the length density of the side heating portion and the length density of the main heating portion may not be equal.

The heating tube 60 can thus have two temperature zones (one high temperature zone and one low temperature zone). Wherein, the high temperature area of the heating pipe 60 (for example, the part opposite to the side heating part) can be opposite to the part of the glass plate 2 that needs to be bent, and the low temperature area of the heating pipe 60 (for example, the part opposite to the main heating part) can be Opposite to the portion of the glass plate 2 that does not require thermal bending. The heating tube 60 of this example is suitable for heating the glass sheet 2 having one hot bend.

As shown in FIGS. 12 and 13 , the plurality of heating parts 620 may include a first side heating part 621 , a second side heating part 622 and an intermediate heating part 623 , and the first end of the intermediate heating part 623 may be connected to the first side heating part 623 . The ends of 621 are electrically connected, and the second end of the middle heating part 623 may be electrically connected to the end of the second side heating part 622 .

The resistance of the first side heating part 621 and the resistance of the middle heating part 623 may not be equal and/or the length density of the first side heating part 621 and the length density of the middle heating part 623 may not be equal, and the second side heating part 622 and/or the length density of the second side heating portion 622 and the length density of the middle heating portion 623 may not be equal.

The heating tube 60 can thus have three temperature zones (eg, two high temperature zones and one low temperature zone). Wherein, the two high temperature regions of the heating pipe 60 (for example, the parts opposite to the first side heating part 621 and the second side heating part 622 ) may be opposite to the parts of the glass plate 2 that need to be bent, and the low temperature regions of the heating pipe 60 ( For example, the portion opposite to the intermediate heating portion 623) may be opposite to the portion of the glass plate 2 that does not require thermal bending.

In other words, the first side heating part 621 and the second side heating part 622 may be opposite to the part of the glass plate 2 that needs to be bent, and the middle heating part 623 may be opposite to the part of the glass plate 2 that does not need to be bent. The heating tube 60 of this example is suitable for heating the glass plate 2 having two hot-bending parts, for example, the two ends of the glass plate 2 are the hot-bending parts.

Preferably, the resistance of the first side heating part 621 may be equal to the resistance of the second side heating part 622 and/or the length density of the first side heating part 621 may be equal to the length density of the second side heating part 622 . In this way, the heat absorbed by the two ends of the glass plate 2 can be made substantially equal, so that the structure of the heating pipe 60 can be more reasonable.

As shown in FIG. 13 , a plurality of heating parts 620 constitute a plurality of heating part groups 624 , and the plurality of heating part groups 624 may be spaced apart along a first direction, and the first direction may be perpendicular to the length direction of the tube body 610 . Two adjacent heating part groups 624 in the first direction may be connected in series. The length direction of the tube body 610 is shown by arrow B in FIG. 13 , and the first direction is shown by arrow C in FIG. 13 .

Each heating part group 624 may include a first side heating part 621 , a second side heating part 622 and a middle heating part 623 , the first end of the middle heating part 623 may be electrically connected with the end of the first side heating part 621 , and the middle heating part 623 The second end of the heating part 623 may be electrically connected to the end of the second side heating part 622 . The resistance of the first side heating part 621 and the resistance of the middle heating part 623 may not be equal and/or the length density of the first side heating part 621 and the length density of the middle heating part 623 may not be equal, and the second side heating part 622 and/or the length density of the second side heating portion 622 and the length density of the middle heating portion 623 may not be equal.

Thereby, the temperature difference between the part of the pipe body 610 opposite to the first side heating part 621 and the part of the pipe body 610 opposite to the middle heating part 623 can be further increased, and the temperature difference of the pipe body 610 opposite to the second side heating part 622 can be further increased. The temperature difference between the part and the part of the pipe body 610 opposite to the middle heating part 623 can further reduce the energy consumption of the heating pipe 60 .

The resistances of the first side heating parts 621 of the plurality of heating part groups 624 may be equal to each other and/or the length densities of the first side heating parts 621 of the plurality of heating part groups 624 may be equal to each other, and the second side heating parts 621 of the plurality of heating part groups 624 may be equal to each other. The resistances of the side heating parts 622 may be equal to each other and/or the length densities of the second side heating parts 622 of the plurality of heating part groups 624 may be equal to each other. Thereby, the structure of the heating pipe 60 can be made more reasonable.

Preferably, the resistance of the first side heating part 621 may be equal to the resistance of the second side heating part 622 and/or the length density of the first side heating part 621 may be equal to the length density of the second side heating part 622 . In this way, the heat absorbed by the two ends of the glass plate 2 can be made substantially equal, so that the structure of the heating pipe 60 can be more reasonable.

As shown in FIGS. 12 and 13 , in a specific example of the present invention, each heating part 620 may be configured in a helical shape, and the at least two of the plurality of heating parts 620 have at least one of a pitch and a diameter may not be equal to each other. Thereby, the structure of the heating pipe 60 can be made more reasonable.

As shown in FIGS. 1 and 2 , the annealing device 30 may include an annealing support 310 , a lower annealing plate 320 , an upper annealing plate 330 , an upper annealing piece 340 , a lower annealing piece 350 and a first cooling piece 360 . During annealing, the glass sheet 2 may be placed on the annealing holder 310 . The first cooling member 360 is disposed so as to be movable up and down between a disengaged position and a cooling position, the first cooling member 360 in the disengaged position may be spaced apart from the upper annealing plate 330, and the first cooling member 360 in the cooling position may be spaced from the upper annealing plate 330. The upper annealed plate 330 contacts. For example, the first cooling member 360 may be driven to move up and down by an air cylinder, an electric cylinder, or the like.

The lower annealing plate 320 may be located below the upper end of the annealing bracket 310 , and the upper annealing plate 330 may be located above the upper end of the annealing bracket 310 . The upper annealing piece 340 may be disposed on or in the upper annealing plate 330 , and the lower annealing piece 350 may be disposed on or in the lower annealing plate 320 . Both the upper annealing piece 340 and the lower annealing piece 350 may be the heating pipe 60 according to the above-mentioned embodiment of the present invention.

Since the 3D glass product 3 is placed on the annealing support 310 , the 3D glass product 3 can be directly heated, so that the heat can be transferred to the 3D glass product 3 more efficiently. Therefore, compared with the technical solution of annealing the 3D glass product by heating the upper mold and the lower mold, by using the annealing device 30 to anneal the 3D glass product 3, energy consumption can be reduced, that is, the annealing device 30 has low energy consumption The advantages.

As shown in FIGS. 1 and 2 , the annealing bracket 310 may include a plurality of annealing support posts 311 , and the plurality of annealing support posts 311 may be spaced apart.

The upper annealing plate 330 may be arranged to move up and down, for example, the upper annealing plate 330 may be driven to move up and down by an air cylinder, an electric cylinder, or the like. When placing the 3D glass product 3 on the annealing support 310 or removing the 3D glass product 3 from the annealing support 310 , the upper annealing plate 330 can be moved upward to facilitate the handling of the 3D glass product 3 . When annealing the 3D glass article 3 , the upper annealing plate 330 may be moved downward to heat the 3D glass article 3 .

The first cooling member 360 may be used to controllably reduce the furnace temperature. As shown in FIG. 3 , the first cooling member 360 may include a cooling water package 361 , a flow detector 362 for controlling the amount of incoming water, and a temperature detector for measuring the temperature of the return water. The cooling water package 361 is arranged to be movable up and down between the disengaged position and the cooling position, the cooling water package 361 located in the disengaged position can be spaced apart from the upper annealing plate 330, and the cooling water package 361 located in the cooling position can be separated from the upper annealing plate 330. Annealed plate 330 contacts. For example, the cooling water pack 361 can be driven to move up and down by an air cylinder 363, an electric cylinder, or the like.

As shown in FIG. 1 , FIG. 2 , FIG. 4 to FIG. 11 , in some examples of the present invention, at least a part of the 3D glass bending device 40 may be provided in the bending cavity 112 , and the 3D glass bending device 40 may include The upper heating module 410, the lower heating module 420, the graphite mold 430 and the vacuum generator (not shown in the figure).

The upper heating module 410 may include a first heating plate 411, a second heating plate 412, a first heating element 413 and a second heating element 414. The first heating element 413 may be provided on the first heating plate 411 or on the first heating element 411. In the heating plate 411 , the second heating element 414 may be arranged on the second heating plate 412 or arranged in the second heating plate 412 . Wherein, the first heating element 413 is arranged so as to be movable up and down.

The lower heating module 420 may include a lower heating plate 421 and a lower heating member 422. The lower heating plate 421 may be provided with an air extraction channel 4211, and the upper port of the air extraction channel 4211 may be opened on the upper surface 4212 of the lower heating plate 421, The heating element 422 may be arranged on the lower heating plate 421 or arranged in the lower heating plate 421 . The suction port of the vacuum generator can communicate with the suction channel 4211 . The graphite mold 430 may be disposed on the upper surface 4212 of the lower heating plate 421, the graphite mold 430 may be located below the upper heating module 410, and the porosity of the graphite mold 430 may be greater than or equal to 12%.

The working process of the 3D glass bending machine 1 according to the embodiment of the present invention will be described below with reference to FIG. 1 , FIG. 2 , and FIGS. 4 to 11 .

First, the glass plate 2 is conveyed into the preheating chamber 111 , and the glass plate 2 is preheated by the preheating device 20 . Specifically, the glass plate 2 is placed on the preheating support 210 , and then the glass plate 2 is heated by the upper preheating member 240 and the lower preheating member 250 . Wherein, the preheating temperature can be determined according to the composition of the glass plate 2, which is not substantially different from the prior art, so it will not be described in detail.

After the preheating is completed, the glass plate 2 is transported into the bending chamber 112 , and the glass plate 2 is heated by the 3D glass bending apparatus 40 . Specifically, the glass plate 2 may be placed on the graphite mold 430 , and the graphite mold 430 is heated by the upper heating module 410 and the lower heating module 420 . Wherein, a predetermined portion of the glass plate 2 (the portion to be thermally bent) may be opposite to the first heating element 413, for example, the predetermined portion of the glass plate 2 may be opposite to the first heating element 413 in the up-down direction, so as to utilize the first heating element 413. The heating member 413 heats the predetermined portion of the glass plate 2 .

Before, after, or simultaneously heating the glass sheet 2 with the 3D glass bending apparatus 40, an inert gas may be supplied into the bending chamber 112, and the vacuum generator may be turned on for evacuation. Since the suction port of the vacuum generator communicates with the air hole of the graphite mold 430 through the air suction channel 4211 , after the vacuum generator is turned on, the inert gas enters the air hole of the graphite mold 430 . At this time, the predetermined portion of the glass plate 2 is subjected to its own gravity, the pressure of the inert gas (acting on the upper surface of the glass plate 2 ), and the negative pressure (acting on the lower surface of the glass plate 2 ).

When the temperature of the predetermined part of the glass plate 2 rises above the temperature of the deformation point of the glass plate 2, the predetermined part of the glass plate 2 will rapidly move under the action of its own gravity, the pressure of the inert gas and the negative pressure Deformation (moving downward) occurs until it is attached to the upper surface of the graphite mold 430 (at this time the entire glass plate 2 is attached to the upper surface of the graphite mold 430 ), so as to form the 3D glass product 3 .

Existing molds for 3D glass can be metal molds and graphite molds. Since the existing hot bending method is to heat the glass plate to the temperature of the deformation point, and then use the upper mold and the lower mold to extrude the glass plate (molding), so that the glass plate is deformed to form a 3D glass product, so the upper mold and the lower mold need to be Bearing a large force, which requires the upper and lower molds to have high structural strength. Therefore, when the upper mold and the lower mold are graphite molds, the porosity of the graphite mold is less than or equal to 3%, so as to ensure that the graphite mold has high structural strength. More importantly, in order to improve the structural strength of the graphite mold, the general pursuit of those skilled in the art is to further reduce the porosity of the graphite mold.

In the present application, however, since the glass plate 2 is heated to a temperature above the deformation point of the glass plate 2 (for example, close to the softening point temperature of the glass plate 2), and the glass plate 2 is subjected to the pressure of the inert gas and the negative pressure, Therefore, it is not necessary to press the glass plate 2 with the upper and lower molds. That is, only the graphite mold 430 located under the glass plate 2 can be provided, and the force on the graphite mold 430 is very small, so the porosity of the graphite mold 430 can be greater than or equal to 12%.

Preferably, the porosity of the graphite mold 430 may be less than or equal to 40%. More preferably, the porosity of the graphite mold 430 is greater than or equal to 15% and less than or equal to 30%. Further preferably, the porosity of the graphite mold 430 is greater than or equal to 18% and less than or equal to 25%. Most preferably, the porosity of the graphite mold 430 may be 23%. Therefore, not only can the graphite mold 430 have sufficient structural strength, but also the glass plate 2 can be more firmly adsorbed on the graphite mold 430 .

Moreover, since the upper die and the lower die are no longer used to press the glass plate 2, the predetermined part of the glass plate 2 is thermally deformed under the action of its own gravity, the pressure of the inert gas and the negative pressure, so it can be greatly reduced. The pressure on the small glass plate 2, whereby the surface defects of the graphite mold 430 (such as high surface roughness, large mold particles, etc.) Improve the surface quality of 3D glass products 3 .

In addition, since there is no need to set an upper mold, not only can the structures of the 3D glass bending device 40 and the 3D glass bending machine 1 be simplified, but also the upper heating module 410 can directly heat the glass plate 2, thereby making the heat more efficient transmitted to the glass plate 2. Therefore, the energy consumption of the upper heating module 410 and the 3D glass bending device 40 can be reduced, that is, the upper heating module 410 and the 3D glass bending device 40 have the advantage of low energy consumption.

According to the 3D glass hot bending device 40 according to the embodiment of the present invention, the air extraction channel 4211 is arranged on the lower heating plate 421 and the graphite mold 430 is arranged on the upper surface 4212 of the lower heating plate 421, so that not only the inert gas can enter the graphite In order to prevent the oxidation of the graphite mold 430, the pressure on the glass plate 2 can be greatly reduced, so as to avoid the transfer of the surface defects of the graphite mold 430 to the surface of the glass plate 2 and the 3D glass product 3, so that the surface defects of the graphite mold 430 can be greatly reduced. Improve the surface quality of 3D glass products 3 .

Therefore, the 3D glass hot bending device 40 according to the embodiment of the present invention has the advantages of long service life and high processing quality.

Preferably, before the glass plate 2 is heated by the 3D glass bending device 40, an inert gas can be provided into the bending chamber 112 and the vacuum generator can be turned on to evacuate. Under the action of negative pressure, the inert gas is sufficiently sucked into Inside of graphite mold 430 . In other words, the inert gas has been sufficiently sucked into the interior of the graphite mold 430 before the graphite mold 430 is heated. In this way, the graphite mold 430 can be more effectively prevented from being oxidized, and the shape change, strength reduction, and service life of the graphite mold 430 due to oxidation can be more effectively avoided.

Preferably, the glass plate 2 can be heated to a first preset temperature by using the 3D glass bending device 40 , and the first preset temperature can be lower than the softening point temperature of the glass plate 2 and can be greater than the deformation point temperature of the glass plate 2 .

More preferably, the difference between the softening point temperature and the first preset temperature may be within a first preset range, and the difference between the first preset temperature and the deformation point temperature may be within a second preset range. Therefore, not only can the quality of the hot bending forming of the glass plate 2 be improved, the speed of the hot bending forming of the glass plate 2 can be accelerated, but also the energy consumption of the hot bending forming of the glass plate 2 can be reduced.

Further preferably, the difference between the softening point temperature and the first preset temperature may be greater than or equal to 50 degrees Celsius and less than or equal to 100 degrees Celsius, and the difference between the first preset temperature and the deformation point temperature may be greater than or equal to 20 degrees Celsius and less than or equal to 70 degrees Celsius. Celsius. In this way, not only the quality of the hot bending forming of the glass plate 2 can be further improved, the speed of the hot bending forming of the glass plate 2 can be further accelerated, but also the energy consumption of the hot bending forming of the glass plate 2 can be further reduced.

Most preferably, the difference between the softening point temperature and the first preset temperature may be greater than or equal to 60 degrees Celsius and less than or equal to 80 degrees Celsius, and the difference between the first preset temperature and the deformation point temperature may be greater than or equal to 40 degrees Celsius and less than or equal to 60 degrees Celsius. Celsius. In this way, not only the quality of the hot bending forming of the glass plate 2 can be further improved, the speed of the hot bending forming of the glass plate 2 can be further accelerated, but also the energy consumption of the hot bending forming of the glass plate 2 can be further reduced.

After in-depth research, the inventor found that: in the existing hot bending process of glass, as the hot bending progresses, the distance between the hot bending part of the glass and the upper heating module gradually increases, which causes the upper heating module to move toward the glass. The heat provided by the heat bend decreases as the heat bend moves down. Until the distance between the hot bending part of the glass and the lower heating module is close to a certain degree, the heat provided by the lower heating module to the hot bending part of the glass can be gradually increased. As a result, the heat absorbed by the hot-bending part of the glass changes periodically, resulting in poor quality of the hot-bending surface of the glass and slow hot-bending speed.

During the thermal bending process of the predetermined portion of the glass sheet 2, the predetermined portion is moved downward in order to effect the bending. Since the first heating member 413 is provided so as to be movable up and down, the first heating member 413 can be moved downward so as to keep the distance between the first heating member 413 and the predetermined portion of the glass plate 2 unchanged. That is to say, the first heating plate 411 and the preset portion can move synchronously so that the distance between the first heating element 413 and the preset portion remains unchanged until the glass plate 2 is attached to the upper surface of the graphite mold 430, so that the A 3D glass article 3 is formed.

As a result, the heat absorbed by the predetermined portion of the glass plate 2 can be kept substantially constant, so that the temperature of the predetermined portion of the glass plate 2 can be prevented from having a cycle as the distance between the predetermined portion and the first heating element 413 is different. sexual changes. Therefore, the heating uniformity of the predetermined part of the glass plate 2 can be improved, that is, during the hot bending process, the heat provided by the first heating element 413 to the predetermined part of the glass plate 2 will not follow the direction of the predetermined part. It can be reduced by moving downward, so that the surface quality and speed of hot bending of the glass plate 2 can be improved.

After the glass plate 2 and the graphite mold 430 are completely attached, the first heating element 413 does not move any more. After the 3D glass product 3 (glass plate 2) is kept warm for a certain period of time according to the predetermined procedure, the first heating element 413 moves upward to restore the initial position ( initial state).

The upper heating module 410, the 3D glass hot bending device 40 and the 3D glass hot bending machine 1 according to the embodiment of the present invention are arranged so that the first heating element 413 can move up and down, so that when the glass plate 2 is hot bent, The first heating member 413 can be moved synchronously with the predetermined portion of the glass plate 2 so that the distance between the first heating member 413 and the predetermined portion is kept constant.

Therefore, the heating uniformity of the predetermined part of the glass plate 2 can be improved, that is, during the hot bending process, the heat provided by the first heating element 413 to the predetermined part of the glass plate 2 will not follow the direction of the predetermined part. It can be reduced by moving downward, so that the surface quality and speed of hot bending of the glass plate 2 can be improved. Compared with the prior art, by using the upper heating module 410, the 3D glass bending device 40 and the 3D glass bending machine 1 according to the embodiment of the present invention, the bending speed of the glass plate 2 can be increased by about 10%.

Therefore, the upper heating module 410 , the 3D glass hot bending device 40 and the 3D glass hot bending machine 1 according to the embodiment of the present invention have the advantages of good hot bending surface quality and fast hot bending speed.

Continue to inject inert gas (that is, continue to inject inert gas), after the heat preservation is over, start to reduce the temperature of the 3D glass product 3 attached to the upper surface of the graphite mold 430, when the temperature of the 3D glass product 3 drops to the 3D glass product After the strain point temperature of 3 is below, turn off the vacuum generator. Thus, the 3D glass product 3 can be prevented from being deformed during the cooling process.

After the hot bending is completed, the 3D glass product 3 is transported into the annealing chamber 113 , and the 3D glass product 3 is annealed by the annealing device 30 . The annealing temperature can be determined according to the composition of the glass plate 2, which is not substantially different from the prior art, so it will not be described in detail.

As shown in FIG. 1 and FIG. 2 , the 3D glass bending machine 1 may further include an air hood 50 , and the air hood 50 is provided in the bending chamber 112 so as to be movable up and down between the open position and the closed position. For example, the air hood 50 may be driven to move in the up-down direction by an air cylinder or an electric cylinder. The gas hood 50 in the closed position can cooperate with the wall surface of the bending chamber 112, an inert gas chamber can be defined between the gas hood 50 in the closed position and the wall surface of the bending chamber 112, and the 3D glass bending device 40 can be located in the chamber. In the inert gas chamber, the gas hood 50 in the open position can be separated from the wall of the hot bending chamber 112 .

Specifically, after placing the glass sheet 2 on the graphite mold 430, the gas hood 50 can be moved down to the closed position. Since the 3D glass hot bending device 40 is located in the inert gas chamber with a smaller volume, not only the consumption of the inert gas can be reduced, but also the heat loss can be further reduced. After the hot bending is complete, the air hood 50 can be moved up to the open position in order to remove the 3D glass article 3 .

The shape of the lower surface of the graphite mold 430 is adapted to the shape of the upper surface 4212 of the lower heating plate 421 . Therefore, the structure of the 3D glass hot bending device 40 can be more reasonable.

As shown in FIGS. 10 and 11 , a groove 4213 is formed on the upper surface 4212 of the lower heating plate 421 , and the upper port of the air extraction channel 4211 is opened on the bottom wall of the groove 4213 . In this way, the inert gas can be sucked from more surfaces of the graphite mold 430 , so that not only more inert gas can enter the graphite mold 430 , but also the glass plate 2 can be more firmly adsorbed on the graphite mold 430 . superior.

Preferably, there may be a plurality of air extraction channels 4211 , and the plurality of air extraction channels 4211 may constitute a plurality of air extraction channel groups, and each air extraction channel group may include a plurality of air extraction channels 4211 . Wherein, a plurality of the air extraction channel groups may be spaced along one of the transverse direction and the longitudinal direction of the lower heating plate 421 , and the plurality of air extraction channels 4211 of each air extraction channel group may be arranged along the transverse direction of the lower heating plate 421 . It is spaced apart from the other one in the longitudinal direction.

Wherein, when the glass plate 2 is placed on the graphite mold 430 , the lateral direction of the lower heating plate 421 can be consistent with one of the length direction and the width direction of the glass plate 2 , and the longitudinal direction of the lower heating plate 421 can be consistent with the length of the glass plate 2 . The other one of the direction and the width direction is the same.

As shown in FIG. 10 and FIG. 11 , the lower port of the air extraction channel 4211 can be opened on the lower surface of the lower heating plate 421 , thereby making the structure of the 3D glass bending device 40 more reasonable.

In a specific example of the present invention, the 3D glass bending apparatus 40 may further include an inert gas source and a switching valve. The switching valve may have a first opening, a second opening, and a third opening, and the first opening may switchably communicate with one of the second opening and the third opening. Wherein, the first opening can be communicated with the suction channel 4211, the second opening can be communicated with the suction port of the vacuum generator, and the third opening can be communicated with the inert gas source.

When the 3D glass product 3 needs to be removed from the graphite mold 430 , the first opening is communicated with the third opening, and then the inert gas source can be used to provide positive pressure inert gas to the graphite mold 430 through the exhaust channel 4211 . As a result, the 3D glass product 3 can be prevented from sticking to the graphite mold 430 , so that the 3D glass product 3 can be removed from the graphite mold 430 more conveniently and easily.

In the first example of the present invention, the upper heating module 410 and the 3D glass bending device 40 may include an upper heating plate 419, and the upper heating plate 419 may include a first heating plate 411 and a second heating plate 412, the first heating plate 411 and the second heating plate 412. The heating plate 411 and the second heating plate 412 are hinged. Therefore, by pivoting the first heating plate 411 relative to the second heating plate 412 (for example, the first heating plate 411 rotates clockwise or counterclockwise), the first heating plate 411 or the first heating plate 411 can be rotated. The first heating element 413 in the heating plate 411 moves up and down to ensure that the first heating element 413 moves synchronously with the predetermined portion of the glass plate 2 .

Preferably, at least one of the first heating plate 411 and the second heating plate 412 is provided with an escape notch. Therefore, when the first heating plate 411 is pivoted relative to the second heating plate 412, the first heating plate 411 and the second heating plate 412 can be prevented from interfering with each other.

As shown in FIG. 4 , FIG. 5 , FIG. 7 and FIG. 8 , the upper heating module 410 and the 3D glass bending device 40 may further include a first adjusting rod 441 and a first driving member (not shown in the drawings), the first The adjusting rod 441 is hinged with the first heating plate 411 , and the first driving member is connected with the first adjusting rod 441 so as to drive the first heating plate 411 to move (pivot) through the first adjusting rod 441 .

Therefore, the first driving member can drive the first heating plate 411 and the first heating member 413 to move according to a predetermined program through the first adjusting rod 441, so as to further ensure that the first heating plate 411 and the first heating member 413 and the glass plate 2 The preset part of the glass plate 2 moves synchronously, so as to further ensure that the distance between the first heating element 413 and the preset part of the glass plate 2 remains unchanged.

In addition, the first adjusting rod 441 can be replaced by a hanging chain or a hanging rope. At this time, the first heating plate 411 moves downward under the action of its own weight, and the first driving member can drive the first heating plate through the hanging chain or the hanging rope. The plate 411 moves upward.

Preferably, the upper heating module 410 and the 3D glass bending device 40 may further include a first hinge seat 471, the first hinge seat 471 may be provided on the first heating plate 411, and the first adjustment rod 441 may be connected with the first hinge seat 471 hinged. Therefore, the structures of the upper heating module 410 and the 3D glass hot bending device 40 can be more reasonable.

As shown in FIG. 9 , the first heating element 413 may be a first heating pipe, the second heating element 414 may be a second heating pipe, and the upper heating module 410 and the 3D glass bending device 40 may further include a first connecting plate 451 . The first connecting plate 451 is sleeved on each of the first heating pipe and the second heating pipe, and one of the first heating pipe and the second heating pipe is rotatable relative to the first connecting plate 451 set up. Therefore, the structures of the upper heating module 410 and the 3D glass hot bending device 40 can be more reasonable.

Preferably, the first heating tube is rotatably disposed relative to the first connecting plate 451 , and the first connecting plate 451 is disposed on the second heating plate 412 . More preferably, the first connecting plate 451 is welded on the second heating plate 412 . Therefore, the structures of the upper heating module 410 and the 3D glass bending device 40 can be more stable.

As shown in FIGS. 7 and 8 , in the second example of the present invention, the upper heating module 410 and the 3D glass hot bending device 40 may further include a third heating plate 415 and a third heating element 416 . The third heating plate 415 may be positioned between the first heating plate 411 and the second heating plate 412 hinged with each of the first heating plate 411 and the second heating plate 412 . For example, the third heating plate 415 may be located between the first heating plate 411 and the second heating plate 412 in the horizontal direction. The third heating element 416 may be disposed on the third heating plate 415 or disposed in the third heating plate 415 .

When the bending range of the predetermined part of the glass plate 2 is relatively large, by arranging the third heating plate 415, the first heating element 413 and the third heating element 416 can be more conveniently and easily connected with the glass plate 2. The predetermined portion moves synchronously, so as to further ensure that the distances between the first heating element 413 and the third heating element 416 and the predetermined portion of the glass plate 2 remain unchanged.

Preferably, a portion of the first heating plate 411 adjacent to the third heating plate 415 may be provided with a first escape notch 4111 , and a portion of the third heating plate 415 adjacent to the first heating plate 411 may be provided with a second escape notch 4151 , a portion of the third heating plate 415 adjacent to the second heating plate 412 is provided with a third escape notch 4152 . Therefore, when the third heating plate 415 pivots relative to the second heating plate 412 and the first heating plate 411 pivots relative to the second heating plate 412 and the third heating plate 415, the third heating plate 415 and the second heating plate 415 can be avoided. 412 interfere with each other, and the first heating plate 411 and the third heating plate 415 interfere with each other.

More preferably, the first avoidance notch 4111 can be arranged at the lower part of the first heating plate 411 , the second avoidance notch 4151 can be arranged at the lower part of the third heating plate 415 , and the third avoidance notch 4152 can be arranged at the lower part of the third heating plate 415 . lower part. Therefore, it is possible to further prevent the third heating plate 415 and the second heating plate 412 from interfering with each other, and the first heating plate 411 and the third heating plate 415 from interfering with each other.

As shown in FIGS. 7 and 8 , in the third example of the present invention, there may be multiple third heating plates 415 , and the plurality of third heating plates 415 may be located on the first heating plate 411 and the second heating plate 412 between. The plurality of third heating plates 415 may be hinged in sequence, one of the plurality of third heating plates 415 may be hinged with the first heating plate 411 , and the other of the plurality of third heating plates 415 may be connected with the second heating plate 412 Hinged.

For example, a plurality of third heating plates 415 may be located between the first heating plate 411 and the second heating plate 412 in the left-right direction as indicated by arrow D in FIGS. 1 and 7 . The leftmost third heating plate 415 may be hinged with the first heating plate 411 , and the rightmost third heating plate 415 may be hinged with the second heating plate 412 .

As shown in FIG. 4 and FIG. 5 , the upper heating module 410 and the 3D glass bending device 40 may further include a second adjusting rod 442 and a second driving member (not shown in the drawings), and the second adjusting rod 442 may be combined with the first adjusting rod 442 The three heating plates 415 are hinged, and the second driving member can be connected with the second adjusting rod 442 to drive the third heating plate 415 to move (pivot) through the second adjusting rod 442 .

Therefore, the second driving member can drive the third heating plate 415 and the third heating member 416 to move according to a predetermined program through the second adjusting rod 442, so as to further ensure that the third heating plate 415 and the third heating member 416 and the glass plate 2 The preset part of the glass plate 2 moves synchronously, so as to further ensure that the distance between the third heating element 416 and the preset part of the glass plate 2 remains unchanged.

In addition, the second adjusting rod 442 can be replaced by a hanging chain or a hanging rope. At this time, the third heating plate 415 moves downward under its own weight, and the second driving member can drive the third heating plate through the hanging chain or the hanging rope. Plate 415 moves upward.

Preferably, the upper heating module 410 and the 3D glass bending device 40 may further include a second hinge seat 472, the second hinge seat 472 may be provided on the third heating plate 415, and the second adjustment rod 442 may be connected with the second hinge seat 472 hinged. Therefore, the structures of the upper heating module 410 and the 3D glass hot bending device 40 can be more reasonable.

As shown in FIG. 6 , the first heating element 413 can be a first heating pipe, the second heating element 414 can be a second heating pipe, the third heating element 416 can be a third heating pipe, the upper heating module 410 and the 3D glass The heat bending device 40 further includes a second connecting plate 452 and a third connecting plate 453 .

The second connecting plate 452 is sleeved on each of the second heating pipe and the third heating pipe, and one of the second heating pipe and the third heating pipe is rotatable relative to the second connecting plate 452 set up. The third connecting plate 453 is sleeved on each of the first heating pipe and the third heating pipe, and one of the first heating pipe and the third heating pipe is rotatable relative to the third connecting plate 453 set up. Therefore, the structures of the upper heating module 410 and the 3D glass hot bending device 40 can be more reasonable. Preferably, the first heating tube is rotatably arranged relative to the third connecting plate 453, the second heating tube is rotatably arranged relative to the second connecting plate 452, the third connecting plate 453 is arranged on the third heating plate 415, and the second heating tube is rotatably arranged relative to the second connecting plate 452. The two connecting plates 452 are arranged on the third connecting plate 453 . Further preferably, the third connecting plate 453 is welded on the third heating plate 415 , and the second connecting plate 452 is welded on the third connecting plate 453 . Therefore, the structures of the upper heating module 410 and the 3D glass bending device 40 can be more stable.

As shown in FIG. 4 , FIG. 5 , FIG. 10 and FIG. 11 , in the fourth example of the present invention, there may be two first heating plates 411 , and the upper heating module 410 and the 3D glass bending device 40 further include The fourth heating plate 417 and the fourth heating element 418 are provided on the fourth heating plate 417 or in the fourth heating plate 417 .

The second heating plate 412 is located between the third heating plate 415 and the fourth heating plate 417 . The third heating plate 415 is located between the second heating plate 412 and the one first heating plate 411, the third heating plate 415 is hinged with each of the second heating plate 412 and the one first heating plate 411. The fourth heating plate 417 is located between the second heating plate 412 and the other first heating plate 411 , and the fourth heating plate 417 is hinged with each of the second heating plate 412 and the other first heating plate 411 . Thereby, the upper heating module 410 and the 3D glass bending device 40 can heat the glass plate 2 having the two preset parts (two parts to be bent).

The connection method of the fourth heating plate 417, the second heating plate 412 and the other first heating plate 411 is the same as the connection method of the first heating plate 411, the second heating plate 412 and the third heating plate 415. This will not be described in detail.

Whether to provide the third heating plate 415 , the fourth heating plate 417 and the number of the third heating plate 415 and the fourth heating plate 417 can be determined according to the shape of the 3D glass product 3 to be processed.

Preferably, a portion of the other first heating plate 411 adjacent to the fourth heating plate 417 is provided with a fourth escape notch 4112 , and a portion of the fourth heating plate 417 adjacent to the other first heating plate 411 is provided with a fifth escape. In the notch 4171, a sixth avoidance notch 4172 is provided on the portion of the fourth heating plate 417 adjacent to the second heating plate 412. Thereby, when the fourth heating plate 417 pivots relative to the second heating plate 412 and the other first heating plate 411 pivots relative to the second heating plate 412 and the fourth heating plate 417 , the fourth heating plate 417 and the second heating plate 417 can be avoided. The heating plates 412 interfere with each other, and the fourth heating plate 417 and the other first heating plate 411 interfere with each other.

More preferably, the fourth avoidance notch 4112 is arranged at the lower part of the other first heating plate 411 , the fifth avoidance notch 4171 is arranged at the lower part of the fourth heating plate 417 , and the sixth avoidance notch 4172 is arranged at the lower part of the fourth heating plate 417 . . Thereby, the mutual interference of the fourth heating plate 417 and the second heating plate 412 and the mutual interference of the fourth heating plate 417 and the other first heating plate 411 can be further avoided.

Preferably, there may be a plurality of fourth heating plates 417 , and the plurality of fourth heating plates 417 are located between the second heating plate 412 and another first heating plate 411 . The plurality of fourth heating plates 417 are hinged in sequence, one of the plurality of fourth heating plates 417 is hinged to the second heating plate 412 , and the other of the plurality of fourth heating plates 417 is hinged to the other first heating plate 411 . .

As shown in FIG. 4 and FIG. 5 , the upper heating module 410 and the 3D glass bending device 40 may further include a third adjusting rod 443 and a third driving member (not shown in the drawings), the third adjusting rod 443 and the fourth adjusting rod 443 and the fourth The heating plate 417 is hinged, and the third driving member is connected with the third adjusting rod 443 to drive the fourth heating plate 417 to move (pivot) through the third adjusting rod 443 .

Therefore, the third driving member can drive the fourth heating plate 417 and the fourth heating member 418 to move according to a predetermined program through the third adjusting rod 443, so as to further ensure that the fourth heating plate 417 and the fourth heating member 418 and the glass plate 2 The preset part of the glass plate 2 moves synchronously, so as to further ensure that the distance between the fourth heating element 418 and the preset part of the glass plate 2 remains unchanged.

In addition, the third adjusting rod 443 can be replaced by a hanging chain or a hanging rope. At this time, the fourth heating plate 417 moves downward under its own weight, and the third driving member can drive the fourth heating plate through the hanging chain or the hanging rope. Plate 417 moves upward.

Preferably, the upper heating module 410 and the 3D glass bending device 40 further include a third hinge seat 473 , the third hinge seat 473 is arranged on the fourth heating plate 417 , and the third adjustment rod 443 is hinged with the third hinge seat 473 . Therefore, the structures of the upper heating module 410 and the 3D glass hot bending device 40 can be more reasonable.

As shown in FIG. 4 and FIG. 5 , the upper heating module 410 and the 3D glass bending device 40 further include a fourth driving member 461 which is connected with the second heating plate 412 to drive the second heating plate 412 to move up and down .

When the glass plate 2 needs to be thermally bent, the fourth driving member 461 drives the second heating plate 412 to move downward, thereby driving the first heating plate 411 (the third heating plate 415 and the fourth heating plate 417) to move downward; After the hot bending is completed, the fourth driving member 461 drives the second heating plate 412 to move upward, thereby driving the first heating plate 411 (the third heating plate 415 and the fourth heating plate 417 ) to move upward. Thereby, it is more convenient and easier to place the glass plate on the graphite mold 430 and to remove the 3D glass article 3 from the graphite mold 430 .

Preferably, the fourth driving member 461 is located outside the furnace body 10 , thereby making the structure of the 3D glass bending machine 1 more reasonable.

As shown in FIG. 7 , the upper heating module 410 and the 3D glass bending device 40 further include a first mounting plate 462 , a second mounting plate 463 and a guide post 464 . The first mounting plate 462 is disposed on the second heating plate 412 , the second mounting plate 463 is located above the first mounting plate 462 , and the fourth driving member 461 is connected to the second mounting plate 463 . The lower end of the guide post 464 is connected to the first mounting plate 462 , the guide post 464 is connected to the second mounting plate 463 , and a part of the guide post 464 passes through the furnace body 10 and protrudes upward from the furnace body 10 . Therefore, the structures of the upper heating module 410 and the 3D glass hot bending device 40 can be more reasonable.

Preferably, the first mounting plate 462 is provided on the upper surface of the second heating plate 412 , and the upper end of the guide post 464 is connected to the second mounting plate 463 . More preferably, there may be a plurality of guide posts 464, and the plurality of guide posts 464 are spaced apart. Therefore, the structures of the upper heating module 410 and the 3D glass hot bending device 40 can be more reasonable.

The second cooling member 480 is disposed to be movable up and down between a disengaged position and a cooling position, the second cooling member 480 at the disengaged position may be spaced apart from the second heating plate 412, and the second cooling member 480 at the cooling position may In contact with the second heating plate 412 . For example, the second cooling member 480 may be driven to move up and down by an air cylinder, an electric cylinder, or the like.

The second cooling member 480 may be used to controllably reduce the furnace temperature. As shown in FIG. 3 , the second cooling member 480 may include a cooling water package 481 , a flow detector 482 for controlling the amount of incoming water, and a temperature detector for measuring the temperature of the return water. The cooling water package 481 is arranged to be movable up and down between the disengaged position and the cooling position, the cooling water package 481 in the disengaged position can be spaced apart from the second heating plate 412, and the cooling water package 481 in the cooling position can be separated from the second heating plate 412. The second heating plate 412 contacts. For example, the cooling water pack 481 can be driven to move up and down by an air cylinder 483, an electric cylinder, or the like.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", "Axial" The orientation or positional relationship indicated by , "radial direction", "circumferential direction", etc. are based on the orientation or positional relationship shown in the accompanying drawings, which are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying the indicated device. Or the elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

In the present utility model, unless otherwise expressly specified and limited, the terms "installation", "connection", "connection", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integration; it can be mechanical connection, electrical connection or communication with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication between two elements or the interaction relationship between the two elements , unless otherwise expressly qualified. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise expressly specified and defined, a first feature "on" or "under" a second feature may be in direct contact with the first and second features, or the first and second features through an intermediary indirect contact. Also, the first feature being "above", "over" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples, without conflicting each other.

Although the embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limitations of the present invention, and those of ordinary skill in the art are within the scope of the present invention Variations, modifications, substitutions and variations can be made to the above-described embodiments.

Claims (10)

1. A heating tube (60), characterized in that, comprising: a tubular body (610) having a lumen (611); A plurality of heating parts (620), a plurality of the heating parts (620) are provided in the lumen (611), a plurality of the heating parts (620) are connected in series, wherein the plurality of the heating parts (620) are The resistances of at least two of the plurality of heating parts (620) are not equal to each other and/or the length densities of the at least two of the plurality of the heating parts (620) are not equal to each other, and the at least two of the plurality of the heating parts (620) are not equal to each other. each is opposite to a different portion of the pipe body (610) in the length direction of the pipe body (610); and a first lead-out part (631) and a second lead-out part (632), the first lead-out part (631) is electrically connected to one of the plurality of heating parts (620), and the second lead-out part (632) It is electrically connected to another one of the plurality of heating parts (620). 2 . The heating pipe ( 60 ) according to claim 1 , wherein the plurality of heating parts ( 620 ) comprise a main heating part and a side heating part, and an end of the main heating part is connected to the side heating part. 3 . The ends of the side heating portions are electrically connected, wherein the resistance of the side heating portion is not equal to the resistance of the main heating portion and/or the length density of the side heating portion and the length density of the main heating portion are not equal. 3. The heating pipe (60) according to claim 1, wherein the plurality of heating parts (620) comprise a first side heating part (621), a second side heating part (622) and an intermediate heating part (623), the first end of the intermediate heating part (623) is electrically connected to the end of the first side heating part (621), and the second end of the intermediate heating part (623) is electrically connected to the second end of the intermediate heating part (623) The ends of the side heating part (622) are electrically connected, wherein the resistance of the first side heating part (621) is not equal to the resistance of the middle heating part (623) and/or the first side heating part (621) ) is not equal to the length density of the middle heating part (623), the resistance of the second side heating part (622) is not equal to the resistance of the middle heating part (623) and/or the resistance of the second side heating part (622) The length density of the two side heating parts (622) is not equal to the length density of the middle heating part (623). 4. The heating pipe (60) according to claim 3, characterized in that the resistance of the first side heating part (621) is equal to the resistance of the second side heating part (622) and/or the resistance of the first side heating part (622) The length density of the one side heating part (621) is equal to the length density of the second side heating part (622). 5. The heating tube (60) according to claim 1, wherein a plurality of the heating parts constitute a plurality of the heating part groups (624), and the plurality of the heating part groups (624) are arranged along the first The directions are spaced apart, the first direction is perpendicular to the length direction of the pipe body (610), and each of the heating part groups (624) includes a first side heating part (621), a second side heating part ( 622) and an intermediate heating part (623), the first end of the intermediate heating part (623) is electrically connected to the end of the first side heating part (621), and the second end of the intermediate heating part (623) The end is electrically connected to the end of the second side heating part (622), wherein the resistance of the first side heating part (621) is not equal to the resistance of the middle heating part (623) and/or the resistance of the first side heating part (621) is not equal The length density of the one side heating part (621) is not equal to the length density of the middle heating part (623), and the resistance of the second side heating part (622) is not equal to the resistance of the middle heating part (623) And/or the length density of the second side heating part (622) is not equal to the length density of the middle heating part (623). 6. The heating pipe (60) according to claim 5, characterized in that the electrical resistances of the first side heating parts (621) of the plurality of heating part groups (624) are equal to each other and/or that a plurality of the heating parts (621) are equal to each other. The length densities of the first side heating parts (621) of the heating part group (624) are equal to each other, and the resistances of the second side heating parts (622) of the plurality of heating part groups (624) are equal to each other and /or length densities of the second side heating parts (622) of the plurality of heating part groups (624) are equal to each other. 7. The heating pipe (60) according to claim 6, characterized in that the resistance of the first side heating part (621) is equal to the resistance of the second side heating part (622) and/or the resistance of the first side heating part (622) The length density of the one side heating part (621) is equal to the length density of the second side heating part (622). 8. The heating tube (60) according to any one of claims 1-7, wherein each of the heating parts is configured in a spiral shape, and the at least two of the plurality of heating parts are At least one of the pitch and the diameter are not equal to each other. 9. A heating module, characterized by comprising: the heating pipe (60) according to any one of claims 1-8. 10. The heating module according to claim 9, wherein the heating module comprises: an upper heating plate and a lower heating plate; and A plurality of the heating tubes (60), a part of the plurality of the heating tubes (60) is provided on the upper heating plate or in the upper heating plate, and the rest of the plurality of the heating tubes (60) Parts are provided on the lower heating plate or in the lower heating plate.