Hot bending forming die

Abstract

This application relates to a hot bending forming die, comprising: a first die assembly, the first die assembly including a substrate structure, a first slider structure, a second slider structure and a third slider structure, the substrate structure having a first slideway and a second slideway, the first slider structure and the second slider structure being movably arranged in the first slideway, the third slider structure being movably arranged in the second slideway, the first slider structure having a first arc surface, the second slider structure having a second arc surface, the third slider structure having a third arc surface, and the first arc surface and the second arc surface both being matched with the third arc surface. The technical solution of this application effectively solves the problems in the prior art that the precision of the processed annular glass is low, there are many appearance pockmarks, and it is impossible to meet the mass production specifications for samples with high precision and appearance requirements.

Description

Technical Field

[0001] The present application relates to the technical field of glass processing, and in particular to a hot bending forming mold. Background Art

[0002] With the continuous advancement of technology, 3D glass is used in more and more industries, such as automobiles, electronics, construction and other industries. In order to make 3D glass more widely used, circular glass has also appeared on the market.

[0003] Generally, ring glass is formed by casting and roller pressing.

[0004] In the prior art, the ring-shaped glass processed by casting or roller pressing has low precision and many pitting on the appearance, and cannot meet the mass production specifications for samples requiring high precision and appearance. Summary of the invention

[0005] The present application provides a hot bending forming mold to solve the problem that the processed annular glass in the prior art has low precision and many pitting spots on the appearance, and cannot meet the mass production specifications for samples with high precision and appearance requirements.

[0006] A hot bending forming mold provided according to the present application includes: a first mold assembly, the first mold assembly includes a substrate structure, a first slider structure, a second slider structure and a third slider structure, the substrate has a first slideway and a second slideway, the first slider structure and the second slider structure are movably arranged in the first slideway, the third slider structure is movably arranged in the second slideway, the first slider structure has a first curved surface, the second slider structure has a second curved surface, the third slider structure has a third curved surface, and the first curved surface and the third curved surface both cooperate with the second curved surface.

[0007] Furthermore, the first slider structure includes two, a side of each first slider structure away from the first arc-shaped surface is a plane, and the planes of the two first slider structures are arranged to face each other.

[0008] Furthermore, the second slider structure includes two slider structures that cooperate with the two first slider structures, the second slider structure includes a connected pressing section and a first force-applying section, the first force-applying section is located on the side of the pressing section away from the first slider structure, and the second arc surface is located on the side of the pressing section.

[0009] Furthermore, the first force-applying section has a first inclined surface, the first inclined surface faces away from the substrate structure, and the height of the first inclined surface gradually decreases in a direction from close to the pressing section to far away from the pressing section.

[0010] Furthermore, the third slider structure includes two third slider structures, and the two third slider structures are respectively located on both sides of the first slider structure.

[0011] Further, each third slider structure includes a second force application section. There are two third arc surfaces of each third slider structure, and the two third arc surfaces are spaced apart on the side of the second force application section facing the first slider structure.

[0012] Further, the distance between the two third arc surfaces on the same second force application section is equal to the length of the two first slider structures in the first slideway direction.

[0013] Further, each third slider structure further includes two guiding surfaces. Each guiding surface is located on the side of the third arc surface away from the middle, and each guiding surface gradually protrudes inwards in the direction from far away from the third arc surface to close to the third arc surface.

[0014] Further, each second force application section has a second inclined surface, and the height of the second inclined surface gradually decreases in the direction from close to the third arc surface to far away from the third arc surface.

[0015] Further, the hot bending and forming die further includes a second die assembly. The second die assembly is disposed on the first die assembly in a coverable manner. The second die assembly includes a cover plate, a driving inclined surface, and a driving inclined block. The cover plate has a through hole penetrating both side surfaces, and the driving inclined block is movably disposed in the through hole; the driving inclined block has a first hot bending and forming state of pressing against the second slider structure close to the first slider structure, and the driving inclined surface has a second hot bending and forming state of pressing against the third slider structure close to the second slider structure.

[0016] Applying the technical solution of the present application, the glass is placed at the intersection of the first slideway and the second slideway and extends to the second slideway. The glass is located between the first slider structure and the second slider structure. The glass is pushed by the second slider structure, and the glass deforms under the action of the first arc surface and the second arc surface. When the first slider structure and the second slider structure move into place, the third slider structure moves towards the second slider structure, and the third arc surface applies a force to the glass with the second arc surface, causing the glass to continue to deform. The glass arc surface produced by the hot bending and pressing process has higher precision and fewer appearance pockmarks. The action of the two arc surfaces and the second arc surface forms the production of a larger arc surface of the glass. The technical solution of the present application effectively solves the problems in the prior art that the processed annular glass has low precision, many appearance pockmarks, and cannot meet the mass production specifications for samples with high precision and high appearance requirements. Description of the Drawings

[0017] The drawings here are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application.

[0018] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 Shows a working schematic diagram of the hot bending forming die in the embodiment of the present application;

[0020] Figure 2 Shows Figure 1 a structural schematic diagram of the first die assembly;

[0021] Figure 3 Shows Figure 2 a structural schematic diagram of the substrate structure;

[0022] Figure 4 Shows Figure 2 a structural schematic diagram of the first slider structure;

[0023] Figure 5 Shows Figure 2 a structural schematic diagram of the second slider structure;

[0024] Figure 6 Shows Figure 2 a structural schematic diagram of the third slider structure;

[0025] Figure 7 Shows Figure 1 a structural schematic diagram of the second die assembly;

[0026] Figure 8 Shows Figure 7 a structural schematic diagram of the cover plate;

[0027] Figure 9 Shows Figure 7 a structural schematic diagram of the driving inclined block.

[0028] Among them, the above-mentioned drawings include the following reference numerals:

[0029] 10. First die assembly; 11. Substrate structure; 111. First slideway; 112. Second slideway; 12. First slider structure; 121. First arc surface; 122. Plane; 13. Second slider structure; 131. Second arc surface; 132. Pressing section; 133. First force application section; 1331. First inclined surface; 14. Third slider structure; 141. Third arc surface; 142. Second force application section; 1421. Second inclined surface; 143. Guide surface; 20. Second die assembly; 21. Cover plate; 211. Through hole; 22. Driving inclined surface; 23. Driving inclined block. Detailed implementation manners

[0030] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] It should be pointed out that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0032] For the sake of convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above" and the like can be used herein to describe the spatial positional relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to cover different orientations in use or operation in addition to the orientation shown in the figure of the device. For example, if the device in the figure is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientation of "above..." and "below...". The device can also be positioned in other different ways, rotated 90 degrees or in other orientations, and corresponding explanations are made for the spatial relative descriptions used herein.

[0033] As Figures 1 to 9 shown, the hot bending forming die of this embodiment includes a first die assembly 10. The first die assembly 10 includes a substrate structure 11, a first slider structure 12, a second slider structure 13 and a third slider structure 14. The substrate structure 11 has a first slideway 111 and a second slideway 112. The first slider structure 12 and the second slider structure 13 are movably arranged in the first slideway 111, and the third slider structure 14 is movably arranged in the second slideway 112. The first slider structure 12 has a first arc surface 121, the second slider structure 13 has a second arc surface 131, and the third slider structure 14 has a third arc surface 141. Both the first arc surface 121 and the third arc surface 141 cooperate with the second arc surface 131.

[0034] Applying the technical solution of this embodiment, the glass is placed at the intersection of the first slideway 111 and the second slideway 112 and extends to the second slideway 112. The glass is located between the first slider structure 12 and the second slider structure 13. The glass is pushed by the second slider structure 13, and the glass deforms under the action of the first arc surface 121 and the second arc surface 131. After the first slider structure 12 and the second slider structure 13 move into place, the third slider structure 14 moves towards the second slider structure 13, and the third arc surface 141 and the second arc surface 131 exert a force on the glass, causing the glass to continue to deform. The glass arc surface produced by the hot bending pressing process has a high precision and fewer appearance pockmarks. The action of the two arc surfaces and the second arc surface forms the production of a larger arc surface of the glass. The technical solution of this embodiment effectively solves the problems in the prior art that the precision of the processed annular glass is low, there are many appearance pockmarks, and it cannot meet the mass production specifications for samples with high precision and appearance requirements.

[0035] It should be noted that the center line of the first slideway 111 is parallel to two opposite side edges of the substrate structure 11 and is located in the middle position between the two opposite side edges, running through the entire substrate structure 11; the center line of the second slideway 112 is perpendicular to the center line of the first slideway 111, and the two center lines intersect at the midpoint. The second slideway 112 intersects with the first slideway 111 and runs through the entire substrate structure 11.

[0036] It should be noted that the first arc surface 121, the second arc surface 131, and the third arc surface 141 are all smooth surfaces, which are used to ensure that after the forming is completed, the surface of the annular glass is smooth, with high precision and few pockmarks. The first end (the side far from the second slider structure 13) of the cross-section of the second arc surface 131 along the horizontal direction is a semi-elliptical cross-section, and the second end (the side close to the second slider structure 13) of the cross-section of the second arc surface 131 along the horizontal direction is two curves that gradually shrink towards the major axis of the ellipse along the direction from the first end to the second end. The major axis of the ellipse is on the same straight line as the axis of symmetry of the second slider structure 13. The cross-section obtained by cutting the first arc surface 121 with a horizontal plane is a semi-elliptical cross-section (the above ellipse can also be a circle). This semi-elliptical cross-section is half of the ellipse intercepted by the minor axis, and the axis of symmetry of the semi-ellipse is on the same straight line as the axis of symmetry of the first slider structure 12. The first arc surface 121 cooperates with the first end of the second arc surface 131, and the third arc surface 141 cooperates with the second end of the second arc surface 131.

[0037] Such as Figure 2 and Figure 4As shown, in the technical solution of this embodiment, there are two first slider structures 12. On the side of each first slider structure 12 facing away from the first arc surface 121 is a plane 122, and the planes 122 of the two first slider structures 12 are arranged facing each other. The center lines of the two first slider structures 12 coincide with the first slideway 111. When the two first slider structures 12 are subjected to an external force, they move closer to each other along the first slideway 111 until the planes 122 of the two first slider structures 12 come into contact and fit together, and the two first slider structures 12 cannot move any further, forming a limit. The structure of the plane 122 is easy to process and not easily deformed by extrusion. The first slider structure 12 is limited, and the position of the first arc surface 121 remains unchanged. The glass after being softened by heat fits with the first arc surface 121 to form the required fixed shape. If there is no limit, during the process of the glass fitting with the first arc surface 121, the position of the first arc surface 121 changes, affecting the glass forming process, resulting in problems such as a decrease in the surface quality of the glass and the finished product not meeting the requirements.

[0038] As Figure 2 and Figure 5 shown, in the technical solution of this embodiment, there are two second slider structures 13 that cooperate with the two first slider structures 12. The second slider structure 13 includes a pressing section 132 and a first force - applying section 133 that are connected. The first force - applying section 133 is located on the side of the pressing section 132 away from the first slider structure 12, and the second arc surface 131 is located on the side surface of the pressing section 132. The center lines of the two second slider structures 13 coincide with the center line of the first slideway 111. The second slider structure 13 is used to cooperate with the first slider structure 12 to process the two side surfaces of the glass. Since the first force - applying section 133 is connected to the pressing section 132, when an external force is applied to the first force - applying section 133 on the side away from the first slider structure 12, the force is transmitted to the pressing section 132, and the second arc surface 131 on the side surface of the pressing section 132 applies pressure to the softened glass, causing the glass to deform. Finally, one side surface of the glass is processed into a shape that completely fits with the second arc surface 131. The setting of the first force - applying section 133 increases the surface area of the second slider structure 13 that can be affected by the external force, preventing the second slider structure 13 from being damaged due to excessive pressure when the external force is applied. The side surface of the pressing section 132 is the second arc surface 131, which plays a supporting role for the second arc surface 131 to prevent the second arc surface 131 from being damaged when subjected to pressure.

[0039] As Figure 5As shown, in the technical solution of this embodiment, the first force application section 133 has a first inclined surface 1331. The first inclined surface 1331 faces away from the substrate structure 11, and the height of the first inclined surface 1331 gradually decreases in the direction from near the pressing section 132 to far from the pressing section 132. When an external force is applied to the first inclined surface 1331, since the first inclined surface 1331 is on the first force application section 133 and the first force application section 133 is connected to the pressing section 132, the external force applied to the first inclined surface 1331 is transmitted to the pressing section, thereby pressing the softened glass. The setting of the first inclined surface 1331 can decompose the force in any direction applied to the first inclined surface 1331 into a force in the vertical direction and a force in the horizontal direction. The force in the horizontal direction pushes the entire second slider structure 13. Since the direction of the applied force is arbitrary, it is more convenient for the staff to operate.

[0040] As Figure 2 and Figure 6 shown, in the technical solution of this embodiment, there are two third slider structures 14, and the two third slider structures 14 are respectively located on both sides of the first slider structure 12. The center lines of the two third slider structures 14 coincide with the center line of the second slideway 112. By pushing the third slider structure 14, the third slider structure 14 moves along the second slideway 112 in the direction close to the first slider structure 12, and finally cooperates with the first slider structure 12 to jointly complete the processing of the outer surface of the glass.

[0041] As Figure 6 shown, in the technical solution of this embodiment, each third slider structure 14 includes a second force application section 142. There are two third arc surfaces 141 of each third slider structure 14, and the two third arc surfaces 141 are spaced apart on the side of the second force application section 142 facing the first slider structure 12. When an external force acts on the second force application section 142, it pushes the third slider structure 14 to move on the second slideway 112 in the direction of the first slider structure 12. Since the two third arc surfaces 141 are arranged on the side facing the first slider structure 12 and the third arc surfaces 141 are close to the first slider structure 12, they finally cooperate with the first slider structure 12 to jointly complete the processing of the outer surface of the glass. The second force application section 142 is connected to the two third arc surfaces 141, ensuring that the two third arc surfaces 141 receive the same magnitude and direction of acting force to ensure that the processed glass has the same shape.

[0042] As Figure 6As shown, in the technical solution of this embodiment, the distance between the two third arc surfaces 141 on the same second force application section 142 is equal to the length of the two first slider structures 12 in the direction of the first slideway 111. Each third arc surface 141 protrudes from the surface of the second force application section 142. There are four third arc surfaces 141 on the two second force application sections 142, respectively forming two grooves with the same length as the length of the first slider structure 12 in the direction of the first slideway 111. When the third arc surface 141 is completely attached to the glass, both sides of the two first slider structures 12 are in contact with the bottoms of the grooves on the two third slider structures 14. In this way, the protruding part and the first slider structure 12 form a clamping fit, and neither the first slider structure 12 nor the third slider structure 14 can move any further, ensuring the smooth connection between the first arc surface 121 and the third arc surface 141, and enabling the processed glass to have a smooth surface.

[0043] It should be noted that both ends of the first arc surface 121 have first guiding surfaces, and the heights of the first guiding surfaces at both ends of the first arc surface 121 gradually decrease in the direction from near the symmetry axis of the first slider structure 12 to far from the symmetry axis of the first slider structure 12. One end of the block forming the third arc surface 141 on the third slider structure 14 near the symmetry axis of the third slider structure 14 has a second guiding surface. In the direction from near the first slider structure 12 to far from the first slider structure 12, and the second guiding surface at the end of the third arc surface 141 (referring to the end of this block, the same applies to the rest for convenience of description) gradually decreases in height in the direction from far from the symmetry axis of the third slider structure 14 to near the symmetry axis of the third slider structure 14. The guiding surfaces of the short-circuited guiding surface of the first arc surface 121 and the end of the third arc surface 141 have the same inclination angle. When both the first arc surface 121 and the third arc surface 141 cooperate with the second arc surface 131, the guiding inclined surfaces at the ends of the first arc surface 121 and the third arc surface 141 are mutually attached, and the first arc surface 121 and the third arc surface 141 form a continuous surface.

[0044] As Figure 6 As shown, in the technical solution of this embodiment, each third slider structure 14 further includes two guiding surfaces 143. Each guiding surface 143 is located on the side of the third arc surface 141 away from the middle, and each guiding surface 143 gradually protrudes inward in the direction from far from the third arc surface 141 to near the third arc surface 141. The two side edges of the glass are in contact with the guiding surfaces 143. When the glass deforms under the extrusion of the first slider structure 12 and the second slider structure 13, the two side edges of the glass move along the direction of the guiding surfaces 143. The guiding surfaces 143 play a guiding role for the side edges of the glass, avoiding the problems that the position of the glass changes during the processing, the bending angles of the two side glasses are different, and it affects the subsequent processing.

[0045] As Figure 6As shown, in the technical solution of this embodiment, each second force application section 142 has a second inclined surface 1421. The height of the second inclined surface 1421 gradually decreases in the direction from near the third arc surface 141 to away from the third arc surface 141. An external force is applied to the second inclined surface 1421. Since both the second inclined surface 1421 and the third arc surface 141 are on the second force application section 142, the external force applied to the second inclined surface 1421 is transmitted to the second force application section, and the third arc surface 141 presses the glass. The setting of the second inclined surface 1421 can decompose the force in any direction applied to the second inclined surface 1421 into a force in the vertical direction and a force in the horizontal direction. The force in the horizontal direction pushes the entire third slider structure 14. Since the direction of the applied force is arbitrary, it is more convenient for the staff to operate.

[0046] Place the first arc surfaces 121 of the two first slider structures 12 facing away from each other in the area where the first slideway 111 intersects with the second slideway 112. Place the two glasses to be processed in the second slideway 112. One side surface of the two glasses is in contact with the side surface of the second slideway 112, and the other side surface of the two glasses is in contact with the first arc surface 121 of the first slider structure 12. Place the two second slider structures 13 in the first slideway 111, respectively on both sides of the area where the first slideway 111 intersects with the second slideway 112. The second arc surfaces 131 of the two second slider structures 13 are in contact with the glass. Place the two third slider structures 14 in the second slideway 112, respectively on both sides of the area where the first slideway 111 intersects with the second slideway 112. The third arc surfaces 141 of the two third slider structures 14 are arranged opposite to the area where the first slideway 111 and the second slideway 112 intersect. Heat the glass using an external device. The glass softens. Push the two second slider structures 13 simultaneously along the direction of the first slideway 111 at the same speed. While the glass deforms, it also pushes the two first slider structures 12, and the two first slider structures 12 approach each other. After the glass deforms to a certain extent, push the two third slider structures 14 simultaneously along the direction of the second slideway 112 at the same speed. The third arc surfaces 141 of the third slider structures 14 come into contact with the glass, and the glass continues to deform. After the two first slider structures 12 come into contact with each other, continue to push the two second slider structures 13. When the two second slider structures 13 and the two third slider structures 14 can no longer be pushed, stop pushing. At this time, the surface of the glass is completely in contact with the surfaces of the first arc surface 121, the second arc surface 131, and the third arc surface 141. Stop heating and cool the glass to make it take shape. At this time, the inner surfaces of the two glasses are consistent with the second arc surface 131, the middle part of the outer surface of the glass is consistent with the first arc surface 121, and the two end parts are consistent with the third arc surface 141, completing the processing of the two glasses simultaneously.

[0047] As Figures 7 to 9As shown, in the technical solution of this embodiment, the hot bending forming die further includes a second die assembly 20. The second die assembly 20 is disposed on the first die assembly 10 in a coverable manner. The second die assembly 20 includes a cover plate 21, a driving inclined surface 22, and a driving inclined block 23. The cover plate 21 has a through hole 211 penetrating both side surfaces. The driving inclined block 23 is movably disposed in the through hole 211. The driving inclined block 23 has a first hot bending and pressing forming state in which it presses the second slider structure 13 close to the first slider structure 12, and the driving inclined surface 22 has a second hot bending and pressing forming state in which it presses the third slider structure 14 close to the second slider structure 13. There are 2 through holes 211, driving inclined surfaces 22, and driving inclined blocks 23 respectively. When an external device applies a downward pressure to the second die assembly, the height of the driving inclined block decreases along the direction of the through hole 211, and the two second slider structures 13 are pushed to move in the direction close to the first slider structure. When the height of the driving inclined block 23 decreases to a certain extent and the upper surface of the driving inclined block 23 and the upper surface of the cover plate 21 are in the same plane, the pressure is applied to both the cover plate 21 and the driving inclined block 23 at the same time. The pressure applied to the cover plate 21 is transmitted to the driving inclined surface 22, and the third slider structure 14 is pushed to move in the direction close to the second slider structure 13. The setting of the second die assembly 20 enables the external device to control the movement of the first slider structure 12, the second slider structure 13, and the third slider structure 14 by applying only one acting force, and ensures that the first slider structure 12, the second slider structure 13, and the third slider structure 14 are uniformly stressed, avoiding problems such as poor surface quality of the processed glass caused by uneven stress.

[0048] As can be seen from the above, the present invention is divided into a first die assembly 10 and a second die assembly 20. Each die assembly is composed of some plug-ins. This die is designed according to the 3D hot bending characteristics, which can achieve high-precision dimension control. The one-out-two structure also increases the corresponding production capacity and is easier to operate.

[0049] The first die assembly 10: It is composed of seven modules in total. The substrate structure 11: It is used to place the remaining six inserts (two first slider structures 12, two second slider structures 13, and two third slider structures 14), and slots are provided for each insert to be placed (the first slideway 111, the second slideway 112). It is the overall forming support base of the die. The left and right sides of the second slideway 112 are used to fix the two third slider structures 14 and limit them to ensure uniform force on both sides. The two third slider structures 14: The two ends of the third slider structure 14 have guiding surfaces 143. The two third slider structures 14 have four guiding surfaces 143. The two sides of the glass are respectively in contact with the two guiding surfaces 143. The two guiding surfaces 143 belong to different third slider structures 14. The guiding surfaces 143 play a guiding role in the deformation and movement of the glass. The two third slider structures 14 have four third arc surfaces 141. There is a groove between the two third arc surfaces 141 on the same third slider structure 14. The length of the groove is the same as the length of the first slider structure 12 in the direction of the first slideway 111, which is used to fix the first slider structure 12. During the forming process, the two pieces of glass are fixed on both sides of the two third slider structures 14. The side of the glass away from the third slider structure 14 is in contact with the side of the second chute (the second slideway 112). The side of the third slider structure 14 away from the third arc surface 141 has a second inclined surface 1421. The inclination angle of the second inclined surface 1421 is the same as that of the driving inclined surface 22. In actual work, after the driving inclined surface 22 comes into contact with the second inclined surface 1421, a downward force is applied to the second die assembly 20, and the force is transmitted to the second inclined surface 1421 to control the third slider structure 14 to move along the second slideway 112 towards the second slider structure 13, realizing the forming of both ends of the glass. The forming area of the third arc surface 141 is half of the area of the annular glass. The first slider structure 12: The first arc surface 121 is designed according to the outer surface of the required shape of the middle part of the glass. The overall structure is the R transition area of the annular glass. The annular transition area is not within the design scope. It is used in cooperation with the second slider structure 13 and is divided into two pieces in total. The second slider structure 13: The second arc surface 131 is designed according to the inner surface of the required shape of the middle part of the glass.

[0050] Concave surface forming module (the second slider structure 13): The convex die (the part where the second arc surface 131 cooperates with the first arc surface 121) is designed according to the concave surface of the annular glass. A slope (the first inclined surface 1331) is provided on the side. Considering the forming sequence, it is necessary to make the slope angle (the first inclined surface 1331) the same as the side slope angle (the second inclined surface 1421) and the upper die slope angle (the driving inclined surface 22). According to the downward force, it can be transferred to the slope (the first inclined surface 1331) to control the movement of the slider (the second slider structure 13) to achieve the purpose of forming the annular structure; it is divided into two pieces, front and back.

[0051] Upper mold (second mold assembly 20): It is composed of two parts. ① Side forming slider control frame (cover plate 21): Controls the movement of the side forming slider (third slider structure 14) through a downward force to achieve the forming purpose. There are two through holes 211 on the whole surface. ② Concave surface forming device control block (driving inclined block 23): Controls the concave surface forming device through a downward force to achieve the forming of a ring-shaped structure.

[0052] Considering that there is a bending transition structure exceeding 90° in the annular glass, during this design process, it will be truncated from the area where the arc edge of the annular glass does not exceed 90°, and two types of modules are used for forming, that is, formed by the side forming module (side forming slider) and the convex surface forming module (first slider structure 12). In the implementation, first, the glass side is vertically fixed on the slider inclined groove (guide surface 143 of the third slider structure 14), the concave surface (part of the second slider structure 13) and the convex surface forming device (first slider structure 12) are respectively placed on both sides of the glass and pressed against the glass, and then the concave surface forming device control block (driving inclined block 23) is placed into the through hole 211. Due to the different placement heights of the driving inclined block 23 and the cover plate 21, in the hot bending machine, as the temperature rises, the glass gradually softens, and the heating plate will first contact the protruding concave surface forming device (second slider structure 13) control block, so that the concave surface forming mold (second slider structure 13) pushes the glass towards the convex surface forming device (first slider structure 12), then descends to a certain distance, the side forming slider control frame is stressed and moves, the side starts to form, and finally, after the two convex surface sliders (first slider structure 12) contact, they stop moving, while the side sliders (third slider structure 14) and the convex surface forming device continue to move, and finally the annular glass forming is achieved.

[0053] During the implementation of this embodiment, first, place the substrate structure 11 on the chassis of the hot bending machine. Place the two third slider structures 14 in the second slideway 112 with the third arc surfaces 141 facing each other. Vertically place two pieces of glass in the second slideway 112, on the left and right sides of the second slideway 112 respectively and in contact with the side edges of the second slideway 112. The two side edges of the glass are respectively in contact with the four guiding surfaces 143. Place the two first slider structures 12 at the intersection of the first slideway 111 and the second slideway 112, with the two first arc surfaces 121 respectively facing the sides of the two pieces of glass. Place the two second slider structures 13 in the first slideway 111, with the two second arc surfaces 131 respectively facing the two first arc surfaces 121. Place the cover plate 21 on the first mold assembly 10, and the inclined angle of the driving inclined surface 22 is the same as that of the second inclined surface 1421 on the third slider structure 14, and the two are partially in contact. Insert the two driving inclined blocks 23 into the two through holes 211 respectively. The side of the driving inclined block 23 with the inclined surface faces the first mold assembly 10, and the inclined surface on the driving inclined block 23 is partially in contact with the first inclined surface 1331 on the second slider structure 13. The inclined angle of the driving inclined block 23 is the same as that of the first inclined surface 1331 on the second slider structure 13. At this time, since the glass has not started to heat and soften, the first slider structure 12, the second slider structure 13, and the third slider structure 14 have not moved. Under the combined action of the second slider structure 13 and the third slider structure 14, the second mold assembly 20 is statically placed on the first mold assembly 10. Start the hot bending machine, the temperature gradually rises, the glass softens, and the heating plate presses down. The heating plate first contacts the two driving inclined blocks 23. The driving inclined blocks 23 are under pressure and push the second slider structure 13 to slide along the first slideway 111 in the direction of the first slider structure 12. The middle part of the glass deforms, and the two side edges of the glass move along the guiding surfaces 143, and the two first slider structures 12 gradually approach. After descending a certain distance, the heating plate contacts the upper surface of the cover plate 21. Under the action of the pressure, the cover plate 21 pushes the two third slider structures 14 to move in the direction of approaching the first slider structure 12, and the two ends of the glass start to deform. When the two first slider structures 12 contact each other, the two first slider structures 12 stop moving, and the second slider structure 13 and the third slider structure 14 continue to move until the sides of the two pieces of glass are completely in contact with the two first arc surfaces 121, the two second arc surfaces 131, and the two third arc surfaces 141, and the two first slider structures 12 are embedded in the grooves in the middle of the third arc surfaces 141 of the third slider structure 14. Stop heating and cool the glass to complete the hot bending pressing of the annular glass. By using the second mold assembly 20, under the action of only the pressure of the heating plate, a force can be jointly applied to the second slider structure 13 and the third slider structure 14 to make them move and complete the processing of the glass. Considering the order of forming, in this embodiment, the inclined angles of the first inclined surface 1331 and the second inclined surface 1421 are the same.In some other embodiments, the dimensions of the second slideway 112 and the third slider structure 14 may be modified according to the thickness of the desired glass product.

[0054] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0055] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0056] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A hot bending forming die, characterized in that, include: A first mold assembly (10), the first mold assembly (10) comprising a substrate structure (11), a first slider structure (12), a second slider structure (13) and a third slider structure (14), the substrate structure (11) having a first slideway (111) and a second slideway (112), the first slider structure (12) and the second slider structure (13) being movably disposed in the first slideway (111), the third slider structure (14) being movably disposed in the second slideway (112), ) has a first curved surface (121), the second slider structure (13) has a second curved surface (131), the third slider structure (14) has a third curved surface (141), the first curved surface (121) and the third curved surface (141) both cooperate with the second curved surface (131), there are two first slider structures (12), a side of each first slider structure (12) facing away from the first curved surface (121) is a plane (122), and the planes (122) of the two first slider structures (12) are mutually opposite. The second slider structure (13) is arranged in a direction, the second slider structure (13) is two and both are matched with the two first slider structures (12), the second slider structure (13) comprises a pressing section (132) and a first force-applying section (133) which are connected, the first force-applying section (133) is located on a side of the pressing section (132) away from the first slider structure (12), the second arc-shaped surface (131) is located on the side of the pressing section (132), and the third slider structure (14) comprises two, the two third slider structures (14) are respectively located on the first slider structure (14) and the second slider structure (14) are respectively located on the first slider structure (14). On both sides of a slider structure (12), each of the third slider structures (14) comprises a second force-applying section (142), each of the third slider structures (14) has two third arcuate surfaces (141), the two third arcuate surfaces (141) are located at intervals on a side of the second force-applying section (142) facing the first slider structure (12), and the distance between the two third arcuate surfaces (141) on the same second force-applying section (142) is equal to the length of the two first slider structures (12) in the direction of the first slideway (111).

2. The hot bending forming die according to claim 1, wherein The first force-applying section (133) has a first inclined surface (1331), the first inclined surface (1331) faces away from the substrate structure (11), and the height of the first inclined surface (1331) gradually decreases in a direction from close to the pressing section (132) to away from the pressing section (132).

3. The hot bending forming die according to claim 1, characterized in that, Each of the third sliding block structures (14) further comprises two guide surfaces (143), each of the guide surfaces (143) being located on a side of the third curved surface (141) away from the middle, and each of the guide surfaces (143) gradually convex inwards in a direction from away from the third curved surface (141) to closer to the third curved surface (141).

4. The hot bending forming die according to claim 1, wherein, Each of the second force - applying segments (142) has a second inclined surface (1421), and the height of the second inclined surface (1421) gradually decreases in the direction from near the third arc - shaped surface (141) to away from the third arc - shaped surface (141).

5. The hot bending forming die according to any one of claims 1 to 4, characterized in that The hot - bending forming die further includes a second die assembly (20), the second die assembly (20) is disposed on the first die assembly (10) in a closable manner, the second die assembly (20) includes a cover plate (21), a driving inclined surface (22) and a driving inclined block (23), the cover plate (21) has a through - hole (211) penetrating through both side surfaces, and the driving inclined block (23) is movably disposed in the through - hole (211); The driving inclined block (23) has a first hot - bending and pressing forming state of pressing the second slider structure (13) close to the first slider structure (12), and the driving inclined surface (22) has a second hot - bending and pressing forming state of pressing the third slider structure (14) close to the second slider structure (13).

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