A bending forming device for automotive glass

Abstract

The application relates to a bending forming device for automobile glass, wherein the roller forming assembly comprises a flat roller group and an inclined roller group, the flat roller group comprises a plurality of horizontally arranged flat rollers, the inclined roller group comprises a plurality of inclined rollers for forming curved surfaces, and each flat roller is connected to the inclined rollers at both lengthwise ends; the inclined rollers are composed of a plurality of connected inclined roller units, a height adjusting assembly is arranged between each inclined roller unit, and the height adjusting assembly adjusts the height of the connection between adjacent inclined roller units. The hot glass is preformed by the roller forming assembly, the inclined rollers are composed of a plurality of independent inclined roller units which can be bent and rotated, and a plurality of independent height adjusting assemblies are arranged to adjust the bending degree, so that a plurality of curved bending points can be formed to bend the arc surface of the hot glass, and the arc forming precision is higher and the arc forming range is wider.

Description

Technical Field

[0001] This application relates to the field of glass production and processing equipment, and in particular to a bending and forming apparatus for automotive glass. Background Technology

[0002] Automotive glass is a type of vehicle body accessory, primarily serving a protective function. It can be categorized by glass type into laminated glass, tempered glass, and zone-tempered glass; and by installation location into windshield, side window, rear windshield, and sunroof.

[0003] The manufacturing process of automotive glass typically includes loading, heating, bending, cooling, and unloading. First, flat glass is placed on the loading section and conveyed by loading rollers to a heating furnace for softening. The softened, hot glass is then conveyed to the bending section, where it is bent using a series of bending rollers. The reciprocating motion causes the hot glass to bend to a specific curvature required for processing. Next, it undergoes cooling in the cooling section using air vents to achieve full or partial tempering. Finally, it is conveyed out for unloading. However, in existing equipment, the flat and inclined rollers of the forming roller assembly are usually connected by hinges to achieve bending. This hinge connection structure introduces significant adjustment errors in tilting the inclined rollers, greatly affecting the accuracy of glass bending and the smoothness of the curved surface.

[0004] Regarding the aforementioned technologies, the inventors believe that existing automotive glass bending and forming devices have poor bending and forming accuracy and are not universally applicable to automotive glass with different bending curvature requirements. Utility Model Content

[0005] In order to improve the processing accuracy of automotive glass bending and forming, this application provides a bending and forming apparatus for automotive glass.

[0006] The technical solution of the bending and forming device for automotive glass provided in this application is as follows:

[0007] A bending and forming apparatus for automotive glass includes a frame, a molding assembly, and a roller forming assembly. The molding assembly and the roller forming assembly are both disposed on the frame. The molding assembly includes an upper molding component and a lower molding component, and the glass is pressed and formed between the upper molding component and the lower molding component.

[0008] The roller forming assembly includes a flat roller group and an inclined roller group. The flat roller group includes a plurality of horizontally arranged flat rollers, and the inclined roller group includes a plurality of inclined rollers for forming curved surfaces. Both ends of each flat roller along the length direction are connected to the inclined rollers.

[0009] The inclined roller is composed of multiple inclined roller units connected end to end. Each inclined roller unit is provided with a height adjustment component, which adjusts the height at the connection between adjacent inclined roller units.

[0010] By adopting the above technical solution, the hot glass is first pre-bent using a roller forming assembly, allowing it to bend into a glass shape with a specific curvature. Then, the pre-bent glass is further pressed using the upper and lower molds of the molding assembly, resulting in a smooth, curved surface. The roller forming assembly includes flat and inclined roller groups to support the glass. The inclined rollers in the inclined roller group are composed of multiple interconnected inclined roller units, with height adjustment components added between each adjacent unit to indirectly achieve relatively independent height adjustment. As the height of each inclined roller unit increases / decreases, the portion of the hot glass within the inclined roller group can be bent using each unit as a bending fulcrum. The connection structure of multiple staggered inclined roller units and height adjustment components significantly increases the bending accuracy of the hot glass, resulting in a smoother and more natural curved surface. Meanwhile, the relatively independent connection structure of the inclined roller unit and height adjustment component can not only meet the conventional single-curved glass processing requirements, but also carry out bending processing of multi-curved glass, thereby expanding the applicability of the device.

[0011] Preferably, the inclined roller unit includes a ball-head connector, an inclined roller sleeve, an inclined roller bearing, and an inclined roller wheel. The ball-head end of the ball-head connector is rotatably engaged inside the inclined roller sleeve of the previous inclined roller unit, and the rod body of the ball-head connector is fixedly connected inside the inclined roller sleeve of the same inclined roller unit.

[0012] The inclined roller bearing is sleeved on the side of the outer peripheral wall of the inclined roller sleeve away from the ball end of the ball head connector, while the inclined roller wheel is sleeved on the side of the outer peripheral wall of the inclined roller sleeve close to the ball end of the ball head connector.

[0013] By adopting the above technical solution, the inclined roller unit is configured as a mechanical combination structure consisting of a ball-head connector, an inclined roller sleeve, an inclined roller bearing, and an inclined roller wheel. The complete spherical structure at the ball-head end of the ball-head connector increases the contact area between the spherical surface and the inner wall of the inclined roller sleeve, fully utilizing the omnidirectional rotation characteristics of the ball-head structure. This allows the inclined roller unit to undergo controllable and stable multi-angle bending, thereby bending the hot glass to a specific curvature. The ball-head connector in the rear inclined roller unit is rotatably engaged with the inclined roller sleeve of the front inclined roller unit, establishing a bending and rotational connection between the various inclined roller units. By mounting the inclined roller bearing and inclined roller wheel on the inclined roller sleeve, the inclined roller bearing serves as the point of action for the height adjustment component, ensuring that height changes do not affect the rotation of the inclined roller for glass transport. The outer peripheral wall of the inclined roller wheel directly contacts the bottom surface of the glass, both transporting the glass and acting as a variable-arc fulcrum to assist in bending the glass into an arc. Furthermore, by arranging multiple spaced inclined rollers on a single inclined roller to increase the number of points of action for bending the glass into an arc, it is possible to control and obtain a higher precision bending process, thereby improving the bending quality of the glass.

[0014] Preferably, the ball-head connector has one or more protrusions at its ball-head end, and the height direction of the protrusions extends through the center of the ball at the ball-head end of the ball-head connector; the inclined roller sleeve that accommodates the ball-head end of the ball-head connector has a receiving groove inside for accommodating the protrusions.

[0015] By adopting the above technical solution, a protrusion structure is set on the ball end surface of the ball connector, and a receiving groove is opened inside the inclined roller sleeve that accommodates the ball connector. A stable connection is formed by snapping the protrusion structure into the corresponding receiving groove. On the one hand, when each inclined roller unit undergoes a joint bending action under the action of the height adjustment component, the protrusion structure on the ball end of the ball connector will move relative to each other along the groove direction under the limiting action of the receiving groove, thereby limiting the overall bending amplitude of the inclined roller and buffering the force generated by the height adjustment component on the glass in the vertical direction for a short time, making the glass bending process more controllable and stable. On the other hand, when the inclined roller units connected end to end rotate, they can rely on the protrusion structure to achieve more efficient torque transmission, thereby improving the glass conveying efficiency.

[0016] Preferably, the number of inclined roller units in a single inclined roller is set to n, the number of height adjustment components corresponding to a single inclined roller is n-1, and the number of inclined roller units n in a single inclined roller is 2-10.

[0017] Preferably, the inclined roller group includes a long inclined roller group and a short inclined roller group in sequence along the glass conveying direction. The number of inclined roller units n in the inclined roller group of the long inclined roller group is 4-10, and the number of inclined roller units n in the inclined roller group of the short inclined roller group is 2-6.

[0018] By adopting the above technical solution, a single inclined roller needs to be divided into multiple independent inclined roller units to ensure that the glass has a reasonable number of arc adjustment points. The height adjustment component acts between adjacent inclined roller units (therefore, the number installed is always reduced by one), which can indirectly change the height position relationship between the inclined roller units on both sides, and combine multiple inclined roller units to jointly construct an arc shape that meets the processing requirements. Setting the number of inclined roller units n to 2-10 can meet the bending and forming processing specifications of most automotive glass while keeping the equipment cost reasonable. When the number of inclined roller units n < 2, the inclined roller group is insufficient for bending the glass; when the number of inclined roller units n > 10, the number of inclined roller units and corresponding height adjustment components is too large, resulting in resource waste, and the integration difficulty of multiple height adjustment components increases, which is not conducive to later maintenance and management.

[0019] The inclined roller group is further divided into long inclined roller group and short inclined roller group to conform to the processing shape of automotive glass. Automotive glass sheets are typically trapezoidal, fan-shaped, or other irregular shapes before bending. The receiving shape formed by the long and short inclined roller groups can effectively reduce the manufacturing cost of the equipment without affecting the glass bending process. Specifically, the number of inclined roller units (n) in the long inclined roller group is set to 4-10, while the number of inclined roller units (n) in the short inclined roller group is set to 2-6. This can meet the bending and forming specifications of most automotive glass, maintaining a balance between bending accuracy and equipment cost.

[0020] Preferably, the frame includes a mounting base plate, and both the flat roller group and the inclined roller group are located above the mounting base plate;

[0021] The height adjustment assembly includes a slanted roller support plate, a screw lifting assembly, a reducer, and a first driving component. The end of the slanted roller support plate near the slanted roller unit is rotatably connected to the slanted roller bearing. The screw sleeve end of the screw lifting assembly passes through the mounting base plate and is fixedly connected to the end of the slanted roller support plate away from the slanted roller unit. The reducer and the first driving component are both fixedly connected to the bottom of the mounting base plate, and the output shaft of the first driving component is connected to the reducer. The output shaft of the reducer is connected to the screw lifting assembly.

[0022] By adopting the above technical solution, the height adjustment component is configured as a mechanical linkage structure consisting of an inclined roller support plate, a screw lifting assembly, a reducer, and a first driving component. The inclined roller support plate is rotatably connected to the inclined roller bearing, thus coordinating with the rotation of the ball joint connector under the lifting or lowering action of the screw lifting assembly to continuously form the bending action of the inclined roller as a whole. The first driving component and the reducer together constitute the drive source of the screw lifting assembly. Both are installed on the bottom surface of the mounting base plate to avoid interfering with other forming structures above the mounting base plate. The reducer serves as an intermediate structure connecting the first driving component and the screw lifting assembly, adjusting the output power of the first driving component and improving the smoothness of the lifting or lowering action of the screw lifting assembly. Furthermore, the gear arrangement inside the reducer can change the direction of rotation, thereby significantly reducing the integration difficulty of multiple sets of first driving components on the bottom surface of the mounting base plate.

[0023] Preferably, both ends of the flat roller are provided with flat roller bearings and flat roller support plates. The flat roller bearings are sleeved on the shaft extension of the flat roller and installed on one end of the flat roller support plate. The other end of the flat roller support plate is installed on the mounting base plate, and the length direction of the flat roller support plate is parallel to the length direction of the inclined roller support plate.

[0024] The mounting base plate is provided with a second driving component for driving the flat roller to rotate. A transmission assembly is also provided between the shaft extension of the flat roller and the output shaft of the second driving component. The transmission assembly is fixedly installed on the flat roller support plate.

[0025] By adopting the above technical solution, the flat roller support plates at both ends of the flat roller act as carriers, lifting the flat roller to a suitable height (to cooperate with the preceding or subsequent processing sections), and working together with multiple flat rollers to form a horizontal flat roller surface. The second drive component indirectly drives the flat roller to rotate via the transmission components on the flat roller support plate, thereby stably and controllably conveying automotive glass. The flat roller bearings ensure that the flat roller maintains a fixed load-bearing relationship with the frame / flat roller support plate without affecting the stable rotation of the flat roller, thus enabling the flat roller assembly to carry and convey automotive glass to be processed or already processed.

[0026] Preferably, a transition wheel is provided at the connection between each of the flat rollers and each of the inclined rollers, and the ball end of the ball head connector and the shaft extension of the flat roller are both fixedly installed inside the transition wheel.

[0027] By adopting the above technical solution, the transition wheel set at the connection between the flat roller and the inclined roller can, on the one hand, add a wheel structure to support the glass surface in the transition area between the flat roller and the inclined roller, so that the hot glass is less likely to collapse in this transition area and affect the glass forming quality. On the contrary, it makes the glass arc smoother. On the other hand, the ball end of the ball connector and the shaft extension of the flat roller are both fixedly installed inside the transition wheel, so that when the second drive unit drives the flat roller to rotate, the rotation is synchronously transmitted to the inclined rollers on both sides through the transition wheel structure, thereby enabling the roller surface of the entire roller forming assembly to continuously and stably transport automotive glass.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] This application employs a roller forming assembly to pre-bend hot glass, allowing it to bend into a specific curvature. Then, the upper and lower molds of a molding assembly further press the pre-bent glass, resulting in a smooth, curved surface. The roller forming assembly includes flat and inclined roller groups to support the glass. The inclined rollers in the inclined roller group are composed of multiple interconnected inclined roller units, with height adjustment components added between each adjacent unit to indirectly achieve relatively independent height adjustment. As the height of each inclined roller unit increases / decreases, the portion of the hot glass within the inclined roller group can be bent using each unit as a bending fulcrum. The connection structure of multiple staggered inclined roller units and height adjustment components significantly increases the bending accuracy of the hot glass, resulting in a smoother and more natural curved surface. Meanwhile, the relatively independent connection structure of the inclined roller unit and height adjustment component can not only meet the conventional single-curved glass processing requirements, but also carry out bending processing of multi-curved glass, thereby expanding the applicability of the device.

[0030] This application configures the inclined roller unit as a mechanical combination structure consisting of a ball-head connector, an inclined roller sleeve, an inclined roller bearing, and an inclined roller wheel. It utilizes the complete spherical structure at the ball-head end of the ball-head connector to increase the contact area between the spherical surface and the inner wall of the inclined roller sleeve, fully leveraging the omnidirectional rotation characteristics of the ball-head structure. This allows the inclined roller unit to undergo controllable and stable multi-angle bending, thereby bending the hot glass to a specific curvature. The ball-head connector in the rear inclined roller unit is rotatably engaged with the inclined roller sleeve of the front inclined roller unit, establishing a bending and rotational connection between the various inclined roller units. By mounting the inclined roller bearing and inclined roller wheel on the inclined roller sleeve, the inclined roller bearing serves as the point of action for the height adjustment component, ensuring that height changes do not affect the rotation of the inclined roller for glass transport. The outer peripheral wall of the inclined roller wheel directly contacts the bottom surface of the glass, both transporting the glass and acting as a variable-arc fulcrum to assist in bending the glass into an arc. Furthermore, by arranging multiple spaced inclined rollers on a single inclined roller to increase the number of points of action for bending the glass into an arc, it is possible to control and obtain a higher precision bending process, thereby improving the bending quality of the glass.

[0031] This application divides a single inclined roller into multiple independent inclined roller units to ensure that the glass has a reasonable number of arc adjustment points. The height adjustment components act between adjacent inclined roller units (therefore, the number installed is always reduced by one), which can indirectly change the height position relationship between the inclined roller units on both sides. By combining multiple inclined roller units, an arc shape that meets the processing requirements can be constructed. Setting the number of inclined roller units n to 2-10 can meet the bending and forming processing specifications of most automotive glass while keeping the equipment cost reasonable. When the number of inclined roller units n < 2, the inclined roller group is insufficient for bending the glass; when the number of inclined roller units n > 10, the number of inclined roller units and the corresponding height adjustment components is too large, resulting in resource waste. In addition, the integration difficulty of multiple height adjustment components increases, which is not conducive to later maintenance and management. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of a bending and forming device for automotive glass according to this application.

[0033] Figure 2 This is a schematic diagram of the structure of the roller forming assembly in this application.

[0034] Figure 3 This application Figure 2 A magnified view of a portion of region A in the middle.

[0035] Figure 4 This is a schematic diagram of the height adjustment component in this application.

[0036] Figure 5 This is a structural schematic diagram of the ball joint connector in this application.

[0037] Figure 6 This is a schematic diagram of the slanted roller sleeve in this application.

[0038] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Mounting base plate; 2. Molding assembly; 21. Upper molding component; 3. Roller forming assembly; 31. Flat roller group; 311. Flat roller; 312. Flat roller bearing; 313. Flat roller support plate; 314. Second drive component; 315. Transmission assembly; 32. Inclined roller group; 321. Inclined roller; 4. Inclined roller unit; 41. Ball head connector; 42. Inclined roller sleeve; 43. Inclined roller bearing; 44. Inclined roller wheel; 411. Protrusion; 412. Receiving groove; 5. Height adjustment assembly; 51. Inclined roller support plate; 52. Screw lifting assembly; 53. Reducer; 54. First drive component; 6. Transition wheel. Detailed Implementation

[0039] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0040] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0044] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0045] This application discloses a bending and forming apparatus for automotive glass. (Refer to...) Figure 1 and Figure 2 The system includes a frame 1, a molding assembly 2, and a roller forming assembly 3. The frame 1 can be a conventional frame-type frame structure to support the molding assembly 2 and the roller forming assembly 3. The specific frame structure is not limited; this embodiment uses a cubic frame structure. When the hot automotive glass (hereinafter referred to as "hot glass") that has completed the pre-heating process in the heating furnace is transported to this device for pressing and bending, the flat hot glass is first pre-bent by the roller forming assembly 3 in this device. Then, the hot glass with a certain curvature is pressed together by the molding assembly 2 to form the final processed automotive glass with a curved surface. Finally, it is transported to the subsequent processing stage for further processing.

[0046] The molding assembly 2 includes an upper molding component 21 and a lower molding component (not shown in the figure). The upper molding component 21 is selected as a mold that can form the same curvature as the roller forming assembly 3 (i.e., the processing specifications required for automotive glass). The upper molding component 21 is usually equipped with a vacuum adsorption structure to adsorb and lift the pre-formed glass. The lower molding component is selected as a hollow frame structure that can match the shape of the frame according to the processing specifications required for automotive glass. The area formed by this frame structure is slightly larger than the roller surface area of ​​the roller forming assembly 3, so that the lower molding component can support the edge of the automotive glass and lift it together under the lifting action. The device is also equipped with a lifting drive assembly (not shown in the figure) to realize the lifting and lowering movement of the upper molding component 21 and the lower molding component. This allows the lower molding component to lift the automotive glass from the roller surface of the roller forming assembly 3 and continue to move closer to the upper molding component 21. Finally, the upper molding component 21 and the lower molding component close together to realize the final pressing process of the automotive glass. The pressing direction is set along the height direction of the frame 1. The automotive glass that has completed the pressing process is removed from the lower molding part, while the upper surface of the glass is transported to the next process along with the upper molding part 21 for processing under the adsorption effect of the upper molding part 21.

[0047] Reference Figure 2 and Figure 3 The roller forming assembly 3 includes a flat roller group 31 composed of multiple horizontally arranged flat roller groups 31, and an inclined roller group 32 composed of multiple inclined roller groups 32. Each flat roller 311 and inclined roller 321 is arranged at equal intervals. Each flat roller 311 is connected to two inclined rollers at both ends along its length direction, meaning a single flat roller 311 is connected to two inclined rollers. The flat rollers 311 are arranged parallel to each other, and their length direction is along the length direction of the frame 1. The flat roller group 31 and the inclined roller group 32 together form an inverted trapezoidal cavity, and each flat roller 311 and each inclined roller 321 is mounted on the frame 1 via a support structure. In this embodiment, both the flat roller 311 and the inclined roller 321 are selected as equal-diameter rollers, but the inclined roller 321 can be replaced with variable-diameter rollers according to actual processing requirements, and arranged according to a certain pattern to form a reasonable curved surface shape.

[0048] Reference Figure 5 and Figure 6A single inclined roller 321 is composed of multiple inclined roller units 4 connected end to end. The inclined roller unit 4 includes a ball head connector 41, an inclined roller sleeve 42, an inclined roller bearing 43, and an inclined roller wheel 44. In this embodiment, the ball head connector 41 is selected as a workpiece with a complete ball head structure at one end and a cylindrical rod at the other end. For a single inclined roller unit 4, the ball end of its ball connector 41 is tightly engaged inside the inclined roller sleeve 42 of the next inclined roller unit 4 along the extension direction of the inclined roller 321. Since the ball end surface of the ball connector 41 is in contact with the inner wall of the inclined roller sleeve 42, it can achieve universal rotation within a certain range. The rod end of the ball connector 41 is fixedly engaged inside the inclined roller sleeve 42 in this inclined roller unit 4. However, when the inclined roller 321 bends, the rod end of the ball connector 41 usually undergoes a small extension and retraction movement inside the inclined roller sleeve 42. Therefore, the rod length of the rod end of the ball connector 41 is slightly smaller than the cylinder length of the inclined roller sleeve 42, so that a cavity for its extension and retraction is left inside the inclined roller sleeve 42.

[0049] The ball-end surface of the ball-end connector 41 is also equipped with one or more protrusions 411. In this embodiment, the protrusions 411 are cylindrical protrusions. The number of protrusions 411 can be determined according to the processing specifications of the automotive glass (i.e., the bending degree of the inclined roller 321), and usually one, two, or four protrusions can be provided. The arrangement of the protrusions 411 also needs to be determined according to the working conditions. The line connecting the protrusions 411 in the height direction (when there are multiple protrusions 411, it is the line connecting the protrusions 411 in the height direction) needs to pass through the center of the ball end of the ball-end connector 41, and the height line connecting the uppermost protrusion 411 always points to the center of the arc formed by the inclined roller 321. The inner cavity of the inclined roller sleeve 42 of the adjacent inclined roller unit 4 is provided with a receiving groove 412 to accommodate the movement of the protrusions 411. The shape and number of the receiving grooves 412 are set according to the diameter and number of the protrusions 411. The protrusion 411 structure on the ball head connector 41 can limit the bending degree of the inclined roller 321 on the one hand, and transmit torque between each inclined roller unit 4 on the other hand.

[0050] Reference Figure 2 and Figure 3Within a single inclined roller unit 4, the inclined roller bearing 43 is sleeved on the outer peripheral wall of the inclined roller sleeve 42, away from the ball end of the ball-head connector 41. The inclined roller wheel 44 is fixedly sleeved on the outer peripheral wall of the inclined roller sleeve 42, near the ball end of the ball-head connector 41, so that the inclined roller wheel 44 rotates together with the inclined roller sleeve 42. In the inclined roller units 4 located on the outermost sides of the inclined roller group 32, the inclined roller bearing 43 can be extended according to actual processing needs to add a set of inclined roller wheels 44 on the side of the inclined roller bearing 43 away from the ball-head connector 41, thereby ensuring the stability of glass conveying. In this embodiment, an installation method for the inclined roller unit 4 is provided. The inclined roller sleeve 42 adopts a two-piece splicing structure. The ball-head connector 41 is placed between the two pieces of the split inclined roller sleeve 42. The two pieces of the split inclined roller sleeve 42 are locked together using detachable fixing structures such as bolts. Then, the inclined roller bearing 43 and the inclined roller wheel 44 are sequentially fitted onto the outer peripheral wall of the inclined roller sleeve 42. This installation method, by sequentially installing the inclined roller unit 4 end to end, provides high installation stability and reduces the likelihood of roller breakage during processing.

[0051] Reference Figure 2 and Figure 3 The inclined roller group 32 can be divided into a long inclined roller group 32 and a short inclined roller group 32 according to the specific shape of the automotive glass, and the arrangement of the long inclined roller group 32 and the short inclined roller group 32 can be changed according to the conveying direction of the automotive glass. In this embodiment, the number of inclined roller units 4 in the inclined rollers 321 of the long inclined roller group 32 is 4-10, preferably 6-10, and more preferably 8-10; while the number of inclined roller units 4 n in the inclined rollers 321 of the short inclined roller group 32 is 2-6, preferably 3-6, and more preferably 4-6. The setting of the number of inclined roller units 4 has two advantages. On the one hand, a reasonable and larger number of inclined roller units 4 can provide more points of arcing action for the glass, thereby obtaining higher glass arcing quality. On the other hand, an unreasonable number of inclined roller units 4 will lead to a poor arcing effect, or cause waste of equipment resources and increased production costs.

[0052] Reference Figure 3 and Figure 4Each inclined roller unit 4 is equipped with a height adjustment component 5. The height adjustment component 5 is used to adjust the height of adjacent inclined roller units 4 within a certain range at the connection position, thereby indirectly changing the positional relationship of each inclined roller unit 4. When incremental / decrease gradient programmed control is applied, the entire inclined roller 321 will be in a bent state. It is worth noting that each height adjustment component 5 in this device is independent of each other, so the lifting and lowering control of the inclined roller unit 4 can be achieved without interference, further enabling a larger bending deformation range for hot glass processing. Each height adjustment component 5 includes a slanted roller support plate 51, a screw lifting assembly 52, a reducer 53, and a first drive component 54. The length of the slanted roller support plate 51 (i.e., the aforementioned support structure) is aligned along the height direction of the frame 1. One end of the slanted roller support plate 51 is rotatably connected to a slanted roller bearing 43 within the slanted roller unit 4, with its rotation axis aligned along the width direction of the frame 1. A semi-circular groove is provided at the connection point of the slanted roller support plate 51 to allow the slanted roller bearing 43 to swing. The other end of the slanted roller support plate 51 is fixedly connected to the top of a threaded sleeve in the screw lifting assembly 52. ​​The screw lifting assembly 52 can be a conventional screw lifting mechanism, where the threaded sleeve and screw both penetrate the mounting base plate 11 structure extending from the frame 1.

[0053] This device is bounded by a mounting base plate 11. The flat roller group 31 and the inclined roller group 32 are both located above the mounting base plate 11, while the reducer 53 and the first drive component 54 in the height adjustment assembly 5 are located below the mounting base plate 11 and fixedly mounted on its lower surface. In this embodiment, the first drive component 54 can be a conventional drive device such as a motor. The output shaft of the first drive component 54 is arranged horizontally and connected to the receiving end of the reducer 53. The output shaft of the reducer 53 is arranged vertically and connected to the receiving end of the screw lifting assembly 52. ​​Therefore, the reducer 53 provides a 90° rotation output to facilitate better integration and installation of the various components below the mounting base plate 11 (especially the first drive component 54). It is worth noting that when the automotive glass that needs to be bent has obvious symmetry, conventional transmission devices such as drive shafts can be installed between the reducers 53 corresponding to the inclined rollers 321 on both sides of the same flat roller 311 below the mounting base plate 11 to synchronize the bending action of the inclined roller units 4 that are symmetrical in position.

[0054] Reference Figure 3 and Figure 4Each flat roller 311 has a flat roller bearing 312 and a flat roller support plate 313 installed at both ends. The flat roller bearing 312 is sleeved on the shaft extensions at both ends of the flat roller 311, and the flat roller bearing 312 is fixedly installed on one end of the flat roller support plate 313. The length direction of the flat roller support plate 313 is set along the height direction of the frame 1, and the other end of the flat roller support plate 313 is fixedly installed on the upper surface of the mounting base plate 11. The upper surface of the mounting base plate 11 is also equipped with a plurality of second driving components 314 for driving the flat roller 311 to rotate. In this embodiment, the second driving components 314 can be conventional driving devices such as motors. A transmission assembly 315 is installed on the flat roller support plate 313. The transmission assembly 315 can be a gear set composed of a drive gear and a driven gear, wherein the drive gear is respectively sleeved on the output end of the second driving component 314 and the shaft extension of the flat roller 311. Multiple driven gears are selected, meshing with each other and arranged on the flat roller support plate 313. The drive gear meshes with the driven gears at the beginning and end, so when the second drive member 314 drives, the motion can be transmitted to the flat roller 311 through the transmission assembly 315 so that it can rotate stably.

[0055] Reference Figure 2 and Figure 3 A transition wheel 6 is installed at the connection between the flat roller 311 and the inclined rollers 321 on both sides. The ball end of the ball-head connector 41 and the shaft extension of the flat roller 311 are both fixedly inserted into the transition wheel 6. The ball-head connector 41 can be engaged with the slot inside the transition wheel 6 through the protrusion structure at the ball end to maintain synchronous rotation. Similarly, the shaft extension end of the flat roller 311 can also be equipped with a protrusion structure to engage with the slot inside the transition wheel 6 to maintain synchronous rotation. By installing the transition wheel 6, on the one hand, the glass transition from the flat roller group 31 to the inclined roller group 32 is smoother, preventing hot glass from collapsing at this position; on the other hand, the rotation of the flat roller group 31 under the drive of the second drive member 314 is synchronously transmitted to the inclined roller group 32.

[0056] The implementation principle of the bending and forming device for automotive glass according to an embodiment of this application is as follows: When hot glass is conveyed to this device from the previous process section, it is sequentially transported through the long inclined roller group 32 and the short inclined roller group 32. When the hot glass is completely located on the roller surface of the roller forming component 3, the inclined roller group 32 is tilted at a certain angle by the height adjustment component 5, and the hot glass is bent under the action of multiple inclined roller units 4 on the inclined rollers 321 on both sides to complete the pre-forming process. Then, it is lifted by the lower mold pressing component to fit against the upper mold pressing component 21. The glass, which already has a certain curvature, is pressed by the closing between the upper mold pressing component 21 and the lower mold pressing component to complete the final bending and forming process. Finally, it is conveyed to the subsequent process section under the vacuum adsorption action of the upper mold pressing component 21.

[0057] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A bending forming apparatus for automotive glass, comprising a frame (1), a molding assembly (2), and a roller forming assembly (3), wherein the molding assembly (2) and the roller forming assembly (3) are both disposed on the frame (1), the molding assembly (2) comprising an upper molding component (21) and a lower molding component, and the glass is pressed and formed between the upper molding component (21) and the lower molding component; characterized in that: The roller forming assembly (3) includes a flat roller group (31) and an inclined roller group (32). The flat roller group (31) includes a plurality of horizontally arranged flat rollers (311), and the inclined roller group (32) includes a plurality of inclined rollers (321) for forming curved surfaces. Each flat roller (311) is connected to the inclined roller (321) at both ends along the length direction. The inclined roller (321) is composed of multiple inclined roller units (4) connected end to end. Each inclined roller unit (4) is provided with a height adjustment component (5), which adjusts the height at the connection between adjacent inclined roller units (4).

2. The bending forming device for an automotive glass according to claim 1, characterized in that: The inclined roller unit (4) includes a ball head connector (41), an inclined roller sleeve (42), an inclined roller bearing (43), and an inclined roller wheel (44). The ball head end of the ball head connector (41) is rotatably engaged inside the inclined roller sleeve (42) of the previous inclined roller unit (4), and the rod body of the ball head connector (41) is fixedly connected inside the inclined roller sleeve (42) of the same inclined roller unit (4). The inclined roller bearing (43) is sleeved on the side of the outer peripheral wall of the inclined roller sleeve (42) away from the ball end of the ball head connector (41), while the inclined roller wheel (44) is sleeved on the side of the outer peripheral wall of the inclined roller sleeve (42) close to the ball end of the ball head connector (41).

3. The bending and forming device for automotive glass according to claim 2, characterized in that: The ball-head connector (41) has one or more protrusions (411) at its ball-head end, and the height direction of the protrusions (411) extends through the center of the ball at the ball-head end of the ball-head connector (41); the inclined roller sleeve (42) that accommodates the ball-head end of the ball-head connector (41) has a receiving groove (412) inside for accommodating the protrusions (411).

4. The bending and forming apparatus for automotive glass according to claim 2, characterized in that: The number of the inclined roller units (4) in a single inclined roller (321) is set to n, the number of the height adjustment components (5) corresponding to a single inclined roller (321) is n-1, and the number of the inclined roller units (4) in a single inclined roller (321) is 2-10.

5. The bending and forming apparatus for automotive glass according to claim 4, characterized in that: The inclined roller group (32) includes a long inclined roller group (32) and a short inclined roller group (32) in sequence along the glass conveying direction. The number n of the inclined roller units (4) in the inclined roller (321) in the long inclined roller group (32) is 4-10, and the number n of the inclined roller units (4) in the inclined roller (321) in the short inclined roller group (32) is 2-6.

6. The bending and forming apparatus for automotive glass according to claim 1, characterized in that: The frame (1) includes a mounting base plate (11), and the flat roller group (31) and the inclined roller group (32) are both located above the mounting base plate (11); The height adjustment assembly (5) includes a slant roller support plate (51), a screw lifting assembly (52), a reducer (53), and a first drive member (54). The end of the slant roller support plate (51) near the slant roller unit (4) is rotatably connected to the slant roller bearing (43). The screw sleeve end of the screw lifting assembly (52) passes through the mounting base plate (11) and is fixedly connected to the end of the slant roller support plate (51) away from the slant roller unit (4). The reducer (53) and the first drive member (54) are both fixedly connected to the bottom of the mounting base plate (11), and the output shaft of the first drive member (54) is connected to the reducer (53). The output shaft of the reducer (53) is connected to the screw lifting assembly (52).

7. The bending and forming apparatus for automotive glass according to claim 1, characterized in that: Both ends of the flat roller (311) are provided with flat roller bearings (312) and flat roller support plates (313). The flat roller bearings (312) are sleeved on the shaft extension of the flat roller (311) and installed on one end of the flat roller support plate (313). The other end of the flat roller support plate (313) is installed on the mounting base plate (11). The length direction of the flat roller support plate (313) is parallel to the length direction of the inclined roller support plate (51). The mounting base plate (11) is provided with a second driving member (314) for driving the flat roller (311) to rotate. A transmission assembly (315) is also provided between the shaft extension of the flat roller (311) and the output shaft of the second driving member (314). The transmission assembly (315) is fixedly installed on the flat roller support plate (313).

8. The bending and forming apparatus for automotive glass according to claim 7, characterized in that: Each of the flat rollers (311) and the inclined rollers (321) is provided with a transition wheel (6), and the ball end of the ball head connector (41) and the shaft extension of the flat roller (311) are fixedly installed inside the transition wheel (6).

Images