Automobile glass hot bending forming device

Abstract

The invention relates to an automobile glass hot bending forming device which comprises a lower heating bin and an upper heating bin, a sliding plate is arranged on the side wall of the upper heating bin in a sliding mode, an anti-falling plate is arranged at the end of the sliding plate, a rotating shaft clamping plate is hinged into the anti-falling plate, a notch is formed in the rotating shaft clamping plate, and a first cold sealing plate is arranged in the upper heating bin in an up-down moving mode. The side wall of the first cold sealing plate is attached to the side wall of the upper heating bin, a second cold sealing plate aligned with the inner side wall of the first cold sealing plate is arranged at the lower end of the first cold sealing plate, and the side wall of the second cold sealing plate is attached to the end of the rotating shaft clamping plate. The lower heating bin and the upper heating bin are divided into the upper closed space and the lower closed space by the automobile glass, the first cold sealing plate, the second cold sealing plate and the sliding plate, after high-pressure gas is introduced, the high-pressure gas can apply uniform pressure to the upper surface of the automobile glass, and the surface forming uniformity of the automobile glass is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile glass, and in particular relates to a hot bending forming device for automobile glass. Background Art

[0002] Hot bending is a common process in the production of automotive glass. The principle is to use the softening property of glass at high temperatures to make it collapse onto the mold under its own gravity or external pressure to obtain a set shape.

[0003] Common automotive glass is mostly in the shape of an arc. Before manufacturing, a certain thickness of asbestos paper needs to be laid on the round roller mold arranged in a set arc to reduce the traces left at the contact position of the lower wall of the glass. However, asbestos paper cannot be laid under the round roller that is in direct contact with the upper wall of the glass, resulting in poor molding effect of the upper wall of the glass. In addition, the arc of glass of different specifications is different, and different round roller tooling is also required when setting glass of different arc shapes. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a device for hot bending and forming automobile glass, which at least partially solves the above problems.

[0005] The technical solution adopted by the present invention is as follows: A hot bending and forming device for automobile glass proposed in the present invention comprises a lower heating chamber, in which automobile glass is placed, and a high-temperature heating resistance wire is provided in the lower heating chamber. An upper heating chamber that can move up and down is provided on the lower heating chamber, and a high-temperature resistance wire is also provided in the upper heating chamber.

[0006] Furthermore, the upper heating chamber can be buckled onto the upper wall of the lower heating chamber, so that a sealed space is formed inside the lower heating chamber and the upper heating chamber.

[0007] Furthermore, the side walls of the upper heating bin are symmetrically provided with sliding grooves, and sliding plates are slidably provided in the sliding grooves of the side walls of the upper heating bin. The sliding plates are symmetrically arranged on both sides of the upper heating bin, and anti-slip plates are provided at the ends of the sliding plates. The automobile glass is connected to the anti-slip plates, and the thickness of the anti-slip plates is greater than the height of the sliding grooves.

[0008] Furthermore, in order to adapt to the change of the angle of the automobile glass after bending, a rotating shaft clamp is hinged in the anti-slip plate, and a notch is opened on the rotating shaft clamp.

[0009] Furthermore, the outer end array of the sliding plate is provided with a longitudinal flange, and a first spring is connected between the longitudinal flange and the side wall of the upper heating chamber.

[0010] Furthermore, a closing cylinder is symmetrically provided on the upper wall of the upper heating bin, and a first cold sealing plate is provided on the telescopic end of the closing cylinder, and cold air can be communicated in the first cold sealing plate. The telescopic end of the closing cylinder penetrates the upper heating bin, so that the first cold sealing plate can move up and down in the upper heating bin, and the side wall of the first cold sealing plate is in contact with the side wall of the upper heating bin. The lower end of the first cold sealing plate is provided with a second cold sealing plate aligned with its inner side wall, and cold air can also be communicated in the second cold sealing plate, and the side wall of the second cold sealing plate is in contact with the end of the rotating shaft clamp.

[0011] Furthermore, the side wall of the lower heating chamber is provided with a negative pressure hole, and the upper wall of the upper heating chamber is provided with a positive pressure hole capable of connecting with high-pressure gas.

[0012] Furthermore, in order to facilitate the placement of automobile glass and enable the upper heating chamber to move upward to a state separated from the lower heating chamber, the side walls of the upper heating chamber are symmetrically provided with lifting flanges, and the side walls of the lower heating chamber are symmetrically provided with lifting cylinders, and the telescopic ends of the lifting cylinders are provided on the lifting flanges.

[0013] Furthermore, in order to limit the curved profile of the automobile glass, side doors are symmetrically provided on both sides of the lower heating chamber, and lifting chambers arranged in a linear array are symmetrically provided inside the lower heating chamber. A curvature adjustment rod is slidably provided inside the lifting chamber, and a fixing bolt capable of fixing the curvature adjustment rod is penetrated through the upper end of the side wall of the lifting chamber, and a round roller is rotatably provided at the top end of the curvature adjustment rod.

[0014] Furthermore, an earring is provided at the top of the arc adjustment rod, and the circular roller is rotatably arranged at the center of the earring, and the radius of the earring is the same as the radius of the circular roller.

[0015] Furthermore, in order to improve the speed of adjusting the position of each round roller and avoid individually adjusting and measuring the height of each round roller on the curvature adjustment rod, a second spring is connected between the curvature adjustment rod and the lifting bin, and a positioning roller is provided on the outer wall of the curvature adjustment rod. The positioning roller protrudes from the outside of the earring on the curvature adjustment rod, and the outermost position of the positioning roller is aligned with the middle part of the lower end of the second cold sealing plate.

[0016] The beneficial effects achieved by the present invention are as follows: 1. The lower heating chamber and the upper heating chamber are divided into two closed spaces by the automobile glass, the first cold sealing plate, the second cold sealing plate and the sliding plate. After the high-pressure gas is introduced into the positive pressure hole, the high-pressure gas can exert uniform pressure on the upper surface of the automobile glass, thereby improving the uniformity of the surface molding of the automobile glass; 2. The curvature adjustment rods in the lifting warehouse can slide up and down and be arranged and combined into different shapes to adapt to the production of automotive glass of different models and specifications. The positioning roller contacts and cooperates with the second cold sealing plate to directly press all curvature adjustment rods to the set height without the need to adjust and measure the height of each curvature adjustment rod separately. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the present invention; Figure 2 for Figure 1 Section Figure 1 ; Figure 3 for Figure 1 Exploded diagram of Figure 4 for Figure 1 Section Figure 2 ; Figure 5 is a position relationship diagram of the rotating shaft clamping plate and the sliding plate; Figure 6 It is a partial cross-sectional view of the components in the lower heating chamber; Figure 7 for Figure 6 The enlarged view of the lower heating chamber in part I.

[0018] Among them, 1. lower heating bin, 2. upper heating bin, 3. negative pressure hole, 4. positive pressure hole, 5. lifting cylinder, 6. closing cylinder, 7. lifting flange, 8. first cold sealing plate, 9. second cold sealing plate, 10. sliding plate, 11. first spring, 12. rotating shaft clamp, 13. longitudinal flange, 14. side door, 15. anti-slip plate, 16. notch, 17. slide, 18. lifting bin, 19. arc adjustment rod, 20. second spring, 21. fixing bolt, 22. earring, 23. round roller, 24. positioning roller.

[0019] In the above drawings, a represents automobile glass.

[0020] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0023] like Figure 1-Figure 2 As shown, an embodiment of the present invention proposes a hot bending forming device for automobile glass a, comprising a lower heating chamber 1, in which automobile glass a is placed. In an initial state, automobile glass a is in a flat shape to be bent. A high-temperature heating resistance wire is provided in the lower heating chamber 1. The high-temperature heating resistance wire can increase the temperature in the lower heating chamber 1 to the softening temperature of the automobile glass a. An upper heating chamber 2 that can move up and down is provided on the lower heating chamber 1. A high-temperature resistance wire is also provided in the upper heating chamber 2. The temperature inside the upper heating chamber 2 can also be adjusted to increase.

[0024] like Figure 4 As shown, the upper heating chamber 2 can be buckled onto the upper wall of the lower heating chamber 1 , so that a sealed space is formed inside the lower heating chamber 1 and the upper heating chamber 2 .

[0025] like Figure 3-Figure 5 As shown, the side wall of the upper heating chamber 2 is symmetrically provided with a slide groove 17, and a sliding plate 10 is slidably provided in the slide groove 17 of the side wall of the upper heating chamber 2. The sliding plates 10 are symmetrically arranged on both sides of the upper heating chamber 2, and anti-slip plates 15 are provided at the ends of the sliding plates 10. The automobile glass a is connected to the anti-slip plates 15. The thickness of the anti-slip plates 15 is greater than the height of the slide groove 17. The anti-slip plates 15 can prevent the sliding plates 10 from detaching from the slide groove 17.

[0026] In order to adapt to the change in the angle of the automobile glass a after bending, a rotating shaft clamp 12 is hinged in the anti-slip plate 15, and a slot 16 is opened on the rotating shaft clamp 12. The two side edges of the automobile glass a are clamped by the slots 16 on both sides. It should be noted that the clamped side should be the non-deformed side of the automobile glass a. When the automobile glass a is bent, the clamped side of the automobile glass a will drive the rotating shaft clamp 12 to rotate a certain angle to adapt to the change in the bending shape of the automobile glass a.

[0027] When the automobile glass a is bent, the two sides of the automobile glass a also move toward each other at the same time, so that the two sides of the automobile glass a shrink inward. In order to adapt to the changes of the automobile glass a when it shrinks in real time, the outer end array of the sliding plate 10 is provided with a longitudinal flange 13, and a first spring 11 is connected between the longitudinal flange 13 and the side wall of the upper heating chamber 2. The first spring 11 always pushes the sliding plate 10 outward. After the automobile glass a shrinks, the automobile glass a will apply a pulling force to the sliding plate 10 to overcome the first spring 11, so that the sliding plate 10 shrinks inward.

[0028] like Figure 2-Figure 4 As shown, a closing cylinder 6 is symmetrically arranged on the upper wall of the upper heating bin 2, and a first cold sealing plate 8 is arranged on the telescopic end of the closing cylinder 6, and cold air can be communicated in the first cold sealing plate 8. The telescopic end of the closing cylinder 6 passes through the upper heating bin 2, so that the first cold sealing plate 8 can move up and down in the upper heating bin 2, and the side wall of the first cold sealing plate 8 is in contact with the side wall of the upper heating bin 2, and the lower end of the first cold sealing plate 8 is provided with a second cold sealing plate 9 aligned with its inner side wall, and cold air can also be communicated in the second cold sealing plate 9, and the second cold sealing plate 9 can be removed from the first cold sealing plate 8 and replaced, and the curvature of the second cold sealing plate 9 is adapted to the curved curvature of the automobile glass a, and can be replaced as needed during production, and the side wall of the second cold sealing plate 9 is in contact with the end of the rotating shaft clamp 12, and during production, the edges of the first cold sealing plate 8 and the second cold sealing plate 9 are in contact with the edge of the curved side of the automobile glass a.

[0029] A negative pressure hole 3 is provided on the side wall of the lower heating chamber 1, and a positive pressure hole 4 capable of communicating with high-pressure gas is provided on the upper wall of the upper heating chamber 2. Under the action of the first cold sealing plate 8, the second cold sealing plate 9 and the sliding plate 10, the automobile glass a divides the closed space formed by the buckling of the upper heating chamber 2 and the lower heating chamber 1 into two parts, the upper wall and the lower wall of the automobile glass a are in different spaces. In order to keep the sealing of the deformed edge of the automobile glass a during bending, the cold air introduced into the first cold sealing plate 8 and the second cold sealing plate 9 will condense the edge of the automobile glass a in a high-temperature molten state. It can not only make the edge of the automobile glass a slide and shrink smoothly when it is deformed, but also ensure the sealing of the edge of the automobile glass a and prevent the gas connection between the upper and lower surfaces of the automobile glass a. When gas is sucked outward from the negative pressure hole 3, the air pressure in the lower heating chamber 1 decreases, and when high-pressure gas is introduced from the positive pressure hole 4, the air pressure in the upper heating chamber 2 increases, that is, the upper wall of the automobile glass a is subjected to uniform downward high pressure, and the lower wall of the automobile glass a is subjected to uniform downward low pressure. Under the combined action of the upper and lower pressures, the automobile glass a is gradually bent by the air pressure to a set shape.

[0030] like Figure 1 As shown, in order to facilitate the placement of the automobile glass a and enable the upper heating chamber 2 to move upward to a state separated from the lower heating chamber 1, the side walls of the upper heating chamber 2 are symmetrically provided with lifting flanges 7, and the side walls of the lower heating chamber 1 are symmetrically provided with lifting cylinders 5, and the telescopic ends of the lifting cylinders 5 are provided on the lifting flanges 7.

[0031] like Figure 1As shown, in order to limit the curved profile of the automobile glass a, side doors 14 are symmetrically provided on both sides of the lower heating chamber 1, and lifting chambers 18 arranged in a linear array are symmetrically provided in the lower heating chamber 1. An arc adjustment rod 19 is slidably provided in the lifting chamber 18. A fixing bolt 21 capable of fixing the arc adjustment rod 19 is penetrated through the upper end of the side wall of the lifting chamber 18. The arc adjustment rod 19 can freely adjust the height and be fixed at a required position under the action of the fixing bolt 21. A round roller 23 is rotatably provided at the top end of the arc adjustment rod 19. After the side doors 14 are opened, the position parameters of each component in the lifting chamber 18 can be adjusted. The common shape of the automobile glass a is an arc, so the round roller 23 on the arc adjustment rod 19 needs to be adjusted to an arc shape in sequence. Figure 4 and Figure 6 As shown, at this time, the inner curvature adjustment rod 19 on each lifting bin 18 can be moved up in sequence, so that the round rollers 23 on each curvature adjustment rod 19 are arranged into a set curvature radius, and then a layer of asbestos paper is laid on the round rollers 23 to perform bending operations.

[0032] An earring 22 is provided at the top of the curvature adjustment rod 19, and a round roller 23 is rotatably arranged at the center of the earring 22. In order to prevent the earring 22 from affecting the molding of the automobile glass a and causing line marks on the surface of the automobile glass a, the radius of the earring 22 is the same as the radius of the round roller 23.

[0033] like Figure 2 and Figure 7 As shown, in order to improve the speed of adjusting the position of each round roller 23 and avoid adjusting and measuring the height of each round roller 23 on the curvature adjustment rod 19 individually, a second spring 20 is connected between the curvature adjustment rod 19 and the lifting bin 18. The second spring 20 always pushes the curvature adjustment rod 19 upward to the highest point. The outer wall of the curvature adjustment rod 19 is provided with a positioning roller 24. The positioning roller 24 protrudes from the outer side of the earring 22 on the curvature adjustment rod 19. The outermost position of the positioning roller 24 is aligned with the middle part of the lower end of the second cold sealing plate 9. In the initial state, all the curvature adjustment rods 19 are pushed up to the highest point by the second spring 20. At this time, the second cold sealing plate 9 can be used to complete the adjustment at one time. All the round rollers 23 are adjusted in pairs. When working, the second cold sealing plate 9 is moved downward so that the outer contour of the second cold sealing plate 9 fits with the outer wall of the positioning roller 24. The second cold sealing plate 9 applies downward pressure to the positioning roller 24. The positioning roller 24 drives the curvature adjustment rod 19 to press the second spring 20 to move downward, so that the earrings 22 of all the curvature adjustment rods 19 fit on the lower wall contour of the second cold sealing plate 9. All the curvature adjustment rods 19 successfully complete the profiling of the second cold sealing plate 9, so that it reaches a position adapted to the second cold sealing plate 9, and then the curvature adjustment rods 19 are fixed by the fixing bolts 21. At this time, the one-time adjustment of all the round rollers 23 is completed.

[0034] During specific operation, the upper heating chamber 2 is separated from the lower heating chamber 1 by the lifting cylinder 5, the side door 14 is opened, a suitable second cold sealing plate 9 mold is selected, and the second cold sealing plate 9 is installed at the lower end of the first cold sealing plate 8.

[0035] The closing cylinder 6 is extended downward, and the closing cylinder 6 drives the first cold sealing plate 8 and the second cold sealing plate 9 to move downward, so that the second cold sealing plate 9 is pressed onto the positioning roller 24. All the positioning rollers 24 contact the lower wall contour of the second cold sealing plate 9 in turn. The positioning rollers 24 are pressed and drive the curvature adjustment rod 19 to compress the second spring 20 and move downward.

[0036] At this time, the round rollers 23 on all the curvature adjustment rods 19 are arranged in sequence to form a shape that matches the contour of the second cold sealing plate 9, completing the profiling of the second cold sealing plate 9, and then the curvature adjustment rods 19 are fixed by fixing bolts 21, and then a layer of asbestos paper is laid on the round rollers 23 to start the bending operation.

[0037] Place the flat automobile glass a in the lower heating chamber 1, so that the two side edges of the automobile glass a are clamped by the notches 16 respectively, and the other side edges of the automobile glass a are flush with the ends of the rotating shaft clamping plate 12 respectively, and then drop the upper heating chamber 2, and heat the lower heating chamber 1 and the upper heating chamber 2 at the same time. When the temperature reaches the target, keep it for a certain time, and respectively introduce high-pressure gas into the positive pressure hole 4 and extract gas into the negative pressure hole 3.

[0038] At this time, the upper wall of the automobile glass a is subjected to uniform downward pressure, and the automobile glass a collapses gently to the asbestos paper wound on the round roller 23 under the action of the pressure until the lower wall of the automobile glass a is completely attached to the asbestos paper.

[0039] During the bending process of the automobile glass a, the automobile glass a will drive the rotating shaft clamps 12 on both sides to rotate a certain angle, and at the same time pull the rotating shaft clamps 12 toward the center to adapt to the changes of the automobile glass a. The sliding plate 10 will overcome the thrust of the first spring 11 and move slowly and continuously in the direction of the heating chamber 2 until the automobile glass a is completely shaped.

[0040] When the automobile glass a is shaped and cooled, the sliding plate 10 stops moving, pushes up the upper heating chamber 2, and pushes the automobile glass a outward along the groove 16. The sliding plate 10 returns to its initial state under the action of the first spring 11, waiting for the bending operation of the next glass.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A hot bending and forming device for automobile glass, characterized in that: include: A lower heating chamber (1) is used for placing glass, and a negative pressure hole (3) is provided on a side wall of the lower heating chamber (1); An upper heating chamber (2) capable of being buckled onto an upper wall of the lower heating chamber (1), the upper wall of the upper heating chamber (2) being provided with a positive pressure hole (4) capable of communicating with high-pressure gas; A sliding plate (10) slides symmetrically on the side wall of the upper heating chamber (2); an anti-slip plate (15) is provided at the end of the sliding plate (10); a rotating shaft clamp (12) is hingedly connected inside the anti-slip plate (15); a notch (16) is provided on the rotating shaft clamp (12); the notch (16) is used to clamp and fix the side edge of the automobile glass; The first cold sealing plates (8) are arranged in pairs in the upper heating chamber (2) and are movable up and down, the side walls of the first cold sealing plates (8) are in contact with the side walls of the upper heating chamber, the lower end of the first cold sealing plate (8) is provided with a second cold sealing plate (9) aligned with the inner side wall thereof, and the side wall of the second cold sealing plate (9) is in contact with the end of the rotating shaft clamping plate (12).

2. The automotive glass hot bending forming device according to claim 1, characterized in that: The side wall of the upper heating bin (2) is symmetrically provided with a lifting flange (7), and the side wall of the lower heating bin (1) is symmetrically provided with a lifting cylinder (5), and the telescopic end of the lifting cylinder (5) is arranged on the lifting flange (7).

3. The automotive glass hot bending forming device according to claim 1, characterized in that: The upper wall of the upper heating bin (2) is symmetrically provided with a closing cylinder (6), and the telescopic end of the closing cylinder (6) passes through the upper heating bin (2) and is provided on the first cold sealing plate (8).

4. The automotive glass hot bending forming device according to claim 1, characterized in that: The outer end array of the sliding plate (10) is provided with a longitudinal flange (13), and a first spring (11) is connected between the longitudinal flange (13) and the side wall of the upper heating chamber (2). The side wall of the upper heating chamber (2) is symmetrically provided with a slide groove (17), and the sliding plate (10) is slidably arranged in the slide groove (17), and the thickness of the anti-slip plate (15) is greater than the height of the slide groove (17).

5. The automobile glass hot bending forming device according to claim 1, characterized in that: Side doors (14) are symmetrically provided on both sides of the lower heating bin (1), and lifting bins (18) arranged in a linear array are symmetrically provided in the lower heating bin (1), a curvature adjustment rod (19) is slidably provided in the lifting bin (18), a round roller (23) is rotatably provided at the top end of the curvature adjustment rod (19), and a fixing bolt (21) capable of fixing the curvature adjustment rod (19) is penetrated through the upper end of the side wall of the lifting bin (18).

6. The automobile glass hot bending forming device according to claim 5, characterized in that: A second spring (20) is connected between the arc adjustment rod (19) and the lifting bin (18).

7. The automobile glass hot bending forming device according to claim 6, characterized in that: An earring (22) is provided at the top end of the arc adjustment rod (19), and the radius of the earring (22) is the same as the radius of the round roller (23).

8. The automobile glass hot bending forming device according to claim 7, characterized in that: A positioning roller (24) is provided on the outer side wall of the curvature adjustment rod (19).

9. The automobile glass hot bending forming device according to claim 8, characterized in that: The positioning roller (24) protrudes from the outer side of the earring (22) on the curvature adjustment rod (19), and the outermost edge of the positioning roller (24) is aligned with the middle part of the lower end of the second cold sealing plate (9).

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