CN114772909B

CN114772909B - Curved glass forming die

Info

Publication number: CN114772909B
Application number: CN202210379572.XA
Authority: CN
Inventors: 王玮冬; 陈庆彬; 陈琴; 林军; 周晓林
Original assignee: Fujian Wanda Automobile Glass Industry Co Ltd
Current assignee: Fujian Wanda Automobile Glass Industry Co Ltd
Priority date: 2022-04-12
Filing date: 2022-04-12
Publication date: 2023-12-05
Anticipated expiration: 2042-04-12
Also published as: CN114772909A

Abstract

The application relates to a bent glass forming die which comprises a supporting frame, a bending frame and a locking assembly. The bending frame is connected with the supporting frame in a rotating way. Before the glass is softened, the bending frame is pressed by the glass and rotates along a first rotation direction relative to the supporting frame to a first balance state capable of stably supporting the glass; after the glass is softened, the bending frame rotates to a second balanced state along a second steering direction relative to the supporting frame, wherein the first steering direction is opposite to the second steering direction, and the upper surface of the supporting frame and the upper surface of the bending frame in the second balanced state jointly form a bending supporting surface; when the bending frame is rotated to the second equilibrium state, the locking assembly acts directly or indirectly between the bending frame and the support frame and applies a force to the bending frame that resists rotation in the first direction. Even if the glass edge is pressed by manpower, the bending frame can be kept in the second balanced state, so that the supporting frame and the bending frame can be reliably kept in a state of forming a bending supporting surface, and the bending form of the finally formed bending glass can be ensured to meet the requirement.

Description

Curved glass forming die

Technical Field

The application relates to the technical field of glass manufacturing equipment, in particular to a bent glass forming die.

Background

The curved glass forming mold generally has a support surface that conforms to the curved shape of the curved glass. One way to bend glass is to place the sheet glass onto a mold, and then place the mold with the sheet glass placed in a high temperature environment where the sheet glass gradually softens. In the softening process, the original straight glass can be deformed and gradually attached to the bending form of the die due to the dead weight, and finally the bent glass is formed after cooling. In the softening and shaping process, the edge of the glass is tilted to separate from the mold attached originally. Based on the method, the edges of the glass are pressed by manpower, so that the bending form of the finally shaped glass is consistent with that of a die, and the processing requirement is met. However, in the process of manually pressing the edges of glass, the shape of the mold is easy to change, so that the shape of the finally processed and formed bent glass cannot meet the requirements.

Disclosure of Invention

The application provides a bent glass forming die, which aims at solving the problem that the shape of the bent glass which is easy to be processed after manual pressing cannot meet the requirement, and can effectively prevent the shape of the die from changing when the edge of the glass is pressed by the manual pressing, so as to ensure that the bending shape of the finally formed bent glass meets the requirement.

A curved glass forming mold comprising:

a support frame;

the bending frame is rotationally connected with the supporting frame;

before the glass is softened, the bending frame is pressed by the glass and rotates along a first rotation direction relative to the supporting frame to a first balance state capable of stably supporting the glass;

after the glass is softened, the bending frame rotates to a second balanced state along a second steering direction relative to the supporting frame, the first steering direction is opposite to the second steering direction, the upper surface of the supporting frame and the upper surface of the bending frame in the second balanced state jointly form a bending supporting surface for supporting the softened glass, and the bending form of the bending supporting surface is consistent with the target bending form required by the glass;

and a locking assembly which acts directly or indirectly between the bending frame and the support frame when the bending frame is rotated to the second equilibrium state, and which applies a second moment to the bending frame which resists rotation in the first direction.

The above scheme provides a bent glass forming die, through setting up locking subassembly for after the glass softens, after the bending frame is changeed to the second balanced state, can not be easily for the support frame is followed the rotation of first steering again. The bending frame can be more reliably maintained in the second balanced state even if the glass edges are pressed by manpower, thereby enabling the support frame and the bending frame to be more reliably maintained in a state of forming the bending support surface. The bending form of the finally formed bent glass is ensured to meet the requirement, so that the assembly process of the later-stage bent glass can be smoothly carried out.

In one embodiment, the locking assembly has an unlocked state and a locked state, the locking assembly acts directly or indirectly between the bending frame and the supporting frame when in the locked state, and applies a second moment to the bending frame which prevents the bending frame from rotating along the first rotation direction, and the locking assembly can be triggered to be converted from the unlocked state to the locked state during the process of rotating the bending frame from the first balance state to the second balance state.

In one embodiment, the bending frame is provided with a moment arm assembly, the gravity center of the moment arm assembly and the gravity center of the bending frame are arranged in an ectopic manner, and the moment arm assembly can apply a first moment for the bending frame to rotate from the first balance state to the second balance state under the action of self gravity;

when the bending frame rotates to the second balance state, the locking component acts between the force arm component and the supporting frame and is used for applying a second moment for preventing the force arm component from rotating along the first rotation.

In one embodiment, the part of the support frame rotationally connected with the bending frame is a switching part, and the gravity center of the bending frame and the gravity center of the force arm assembly are respectively positioned at two sides of the switching part.

In one embodiment, the sum of the moment applied to the bending frame by the glass to rotate the bending frame along the first direction and the moment applied to the bending frame by the gravity of the bending frame to rotate the bending frame along the first direction is a third moment;

when the bending frame is in a first balance state, the first moment is smaller than or equal to the third moment;

when the bending frame is in the second balance state, the sum of the first moment and the second moment is larger than the third moment.

In one embodiment, the arm assembly includes a cantilever and a balancing weight disposed on the cantilever, a first end of the cantilever is connected with the bending frame, a second end of the cantilever is suspended outside the bending frame, a part of the support frame rotationally connected with the bending frame is a switching part, the first end of the cantilever and the second end of the cantilever are respectively located on two sides of the switching part, and a distance between the balancing weight and the first end of the cantilever is greater than a distance between the balancing weight and the second end of the cantilever.

In one embodiment, the locking assembly comprises a rotatable locking block, and the locking block can be triggered to rotate during the process of rotating the bending frame from the first balance state to the second balance state, so that when the bending frame is in the second balance state, the locking block is pressed against one end of the arm assembly, which is far away from the bending frame.

In one embodiment, the locking block is provided with a trigger rod, a path through which one end of the arm assembly, far away from the bending frame, passes in the process that the bending frame rotates from the first balanced state to the second balanced state is a first path, and the locking block can rotate between an unlocking position and a locking position;

when the locking block is positioned at the unlocking position, the locking block is arranged outside the first path in a dislocation way, a part of the trigger rod is positioned on the first path, and one end, far away from the bending frame, of the arm assembly can push the trigger rod in the process that the bending frame rotates from the first balance state to the second balance state, so that the locking block rotates to the locking position;

when the locking block is positioned at the locking position, the locking block is propped against one end of the arm assembly, which is far away from the bending frame.

In one embodiment, the locking block is directly or indirectly in running fit with the supporting frame through a locking shaft, the locking shaft is arranged outside the first path in a dislocation mode, a first rotation stopping piece is arranged on the locking shaft, the rotation direction of the locking block from the locking position to the unlocking position is a third rotation direction, and when the locking block is located at the unlocking position, the first rotation stopping piece is directly or indirectly abutted with the supporting frame so as to prevent the locking block from continuing to rotate along the third rotation direction.

In one embodiment, when the bending frame is switched between the first balance state and the second balance state, the space swept by the arm assembly is a first space, the locking block at the unlocking position is located outside the first space, and the locking shaft is located outside the first space.

In one embodiment, the bent glass forming mold further comprises a base, the supporting frame is arranged on the base, a stopping position is arranged on the base, and when the bent frame rotates to the second balanced state, the base is supported below the force arm assembly through the stopping position;

the locking component is arranged on the base, and when the bending frame rotates to the second balanced state, the locking component provides acting force for the arm component to stop at the stopping position.

In one embodiment, a bolt is disposed at one end of the arm assembly away from the bending frame, the length direction of the arm assembly is not parallel to the axis direction of the bending frame relative to the rotation of the supporting frame, the axial direction of the bolt intersects with the length direction of the arm assembly, when the bending frame is in the second balanced state, one end face of the bolt is propped against the stopping position, and the locking assembly can be propped against the other end face of the bolt.

In one embodiment, the two sides of the bending frame are respectively provided with the arm assembly, the number of the locking assemblies is at least two, and one arm assembly corresponds to at least one locking assembly.

In one embodiment, the number of the bending frames is two, the two bending frames are respectively connected to two ends of the supporting frame in a rotating mode, the surface of the supporting frame and the surface of the two bending frames in the second balanced state jointly form the bending supporting surface, the number of the locking assemblies is at least two, and one bending frame at least corresponds to one locking assembly.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view showing a structure of a bending glass forming mold according to the present embodiment;

FIG. 2 is a schematic view of the structure between the locking assembly and the moment arm assembly when the locking assembly is in an unlocked state;

FIG. 3 is a schematic view of the structure between the locking assembly and the moment arm assembly when the cantilever is just in contact with the trigger lever;

fig. 4 is a schematic structural view between the locking assembly and the moment arm assembly when the locking assembly is in the locked state.

Reference numerals illustrate:

10. bending a glass forming die; 11. a base; 111. a rest position; 112. a fixing member; 12. a support frame; 121. a switching part; 122. bending the support surface; 13. a bending frame; 14. a locking assembly; 141. a locking block; 142. a trigger lever; 143. a locking shaft; 144. a first rotation stopper; 15. a moment arm assembly; 151. a cantilever; 152. balancing weight; 153. a connecting rod; 154. and (5) a bolt.

Detailed Description

In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.

As shown in fig. 1, in one embodiment, a bent glass forming mold 10 is provided that includes a support frame 12 and a bending frame 13, the bending frame 13 being rotatably coupled to the support frame 12.

The glass can be shaped into a curved shape because the glass, after softening, is supported by a curved support surface 122 that conforms to its target curved shape, thereby allowing the softened glass to be finally cooled and set in accordance with the curved shape.

As shown in fig. 1, the upper surface of the bending frame 13 and the upper surface of the supporting frame 12 can form the bending support surface 122 in a state that is a second equilibrium state of the bending frame 13.

When the glass before softening is placed on the curved glass forming mold 10, the glass is pressed against the curved frame 13 based on the flat glass plate shape of the glass at this time, unlike the curved shape of the curved support surface 122, so that the curved frame 13 is rotated relative to the support frame 12 until the curved frame 13 is rotated to a state capable of stably supporting the glass. At this time, it is possible that the glass is supported at a partial point on the bending frame 13 and the supporting frame 12, not the entire upper surface. In other words, the glass is not supported over the entire lower surface at this time, but only partially positioned in contact with the bending frame 13 and the supporting frame 12.

Before the glass is softened, the bending frame 13 is pressed by the glass and rotated relative to the supporting frame 12 to a state in which the glass can be stably supported, which is a first equilibrium state. In this process, the direction in which the bending frame 13 rotates relative to the supporting frame 12 is the first direction. As shown in fig. 1, the first steering is a steering shown by an arrow TR1 in the figure.

When the non-softened glass is placed on the bending frame 13 and the supporting frame 12 at an angle as shown in fig. 1, the bending frame 13 is pressed by the glass and is rotated downward with respect to the supporting frame 12.

After the glass is placed on the bending frame 13 and the supporting frame 12, the glass is placed in a high-temperature and high-pressure environment, so that the glass is gradually softened. The glass is deformed by sagging due to the influence of its own weight during softening, and the pressing force exerted by the glass on the bending frame 13 is gradually reduced during this process, so that the bending frame 13 can be turned in the second direction. The second direction of rotation is opposite the first direction of rotation.

After softening the glass, the bending frame 13 is turned back to a second equilibrium state with respect to the supporting frame 12 along the second turning direction. As shown in fig. 1, the upper surface of the bending frame 13 pivoted to the second equilibrium state and the upper surface of the supporting frame 12 together form a bending support surface 122 for supporting the softened glass. The curved support surface 122 has a curved configuration that corresponds to the desired target curved configuration for the glass. So that the glass can be finally cooled and formed according to the target bending form.

In the softening, cooling and forming process, the glass may sag due to its own weight, so that the portion of the edge which is attached to the curved support surface 122 is rolled up, and therefore, in this process, the glass edge needs to be manually pressed to keep the edge of the glass attached to the curved support surface 122, so as to avoid the edge tilting of the glass. And when the glass edge is pressed by manpower, the bending frame 13 is easy to rotate along the first rotation direction relative to the supporting frame 12.

Based on this, as shown in fig. 1, a locking assembly 14 is further provided in the bent glass molding die 10. When the bending frame 13 is rotated to the second equilibrium state, the locking assembly 14 acts directly or indirectly between the bending frame 13 and the supporting frame 12 and applies a second moment to the bending frame 13 preventing rotation thereof in the first direction.

In other words, the locking assembly 14 can directly or indirectly provide a force to the bending frame 13, such that the bending frame 13 cannot easily rotate in the first rotation direction relative to the supporting frame 12 after rotating to the second equilibrium state. The bending frame 13 can be held in the second balanced state more reliably even if the glass edges are pressed by a human force, thereby enabling the support frame 12 and the bending frame 13 to be held in a state where the bending support surface 122 is formed more reliably. The bending form of the finally formed bent glass is ensured to meet the requirement, so that the assembly process of the later-stage bent glass can be smoothly carried out.

Specifically, the locking assembly 14 may directly act between the bending frame 13 and the supporting frame 12, or may indirectly act between the bending frame 13 and the supporting frame 12, as long as it can perform the above function, so long as a second moment preventing the bending frame 13 from rotating along the first direction is applied to the bending frame 13.

The locking assembly 14 has an unlocked state and a locked state. The locking assembly 14 acts directly or indirectly between the bending bracket 13 and the supporting bracket 12 when in the locked state and applies a second moment to the bending bracket 13 preventing rotation thereof in the first direction.

And in particular how the locking assembly 14 switches from the unlocked state to the locked state may be manually controlled or automatically triggered by the movement of the bending frame 13.

For example, the transition of the locking assembly 14 from the unlocked state to the locked state can be triggered during the return of the curved shelf 13 from the first equilibrium state to the second equilibrium state.

The specific triggering process can control the locking component 14 to switch states by detecting the motion state or the motion position of the bending frame 13 and taking the motion state or the motion position as a triggering electric signal; the state of the bending bracket 13 can also be switched by the intermediate element, which, during the return to the second equilibrium state, touches the intermediate element, which moves the locking assembly 14.

Specifically, in one embodiment, as shown in fig. 1, the bending frame 13 is provided with a moment arm assembly 15, the gravity center of the moment arm assembly 15 is arranged in an ectopic manner with the gravity center of the bending frame 13, and the moment arm assembly 15 can apply a first moment for the bending frame 13 to rotate from the first equilibrium state to the second equilibrium state under the action of self gravity.

In the glass softening process, the gravity center position of the glass is changed, and meanwhile, the direction and the magnitude of the acting force applied to the bending frame 13 by the glass are changed due to the change of the shape of the glass, so that the first moment applied to the bending frame 13 by the moment arm assembly 15 under the action of self gravity further drives the bending frame 13 to rotate along the second steering direction, and finally, the bending frame 13 is enabled to rotate to the second balanced state.

Specifically, as shown in fig. 1, the portion of the support frame 12 rotationally connected to the bending frame 13 is a switching portion 121, and the center of gravity of the bending frame 13 and the center of gravity of the arm assembly 15 are located at two sides of the switching portion 121. So that the moment arm assembly 15 is subjected to gravity so that the bending frame 13 always has a tendency to swivel in the second direction of rotation. As shown in fig. 1, the center of gravity of the bending frame 13 and the center of gravity of the moment arm assembly 15 are located at two sides of the adapting portion 121, respectively, no matter the bending frame 13 is in the first balanced state or the second balanced state, so that the bending frame 13 is always subjected to the first moment.

Specifically, the sum of the moment applied to the bending frame 13 by the glass to rotate the bending frame 13 in the first direction and the moment applied to the bending frame 13 by the gravity of the bending frame 13 to rotate the bending frame 13 in the first direction is a third moment;

when the bending frame 13 is in the first balance state, the first moment is smaller than or equal to the third moment;

when the bending frame 13 is in the second equilibrium state, the sum of the first moment and the second moment is greater than the third moment.

Wherein, since the glass is softened and bent by the flat glass plate, the force applied on the bending frame 13 will be changed, and the value of the third moment will be changed, specifically, the third moment will be reduced along with the softening and bending of the glass, and therefore, in the process of softening the glass, the first moment formed by the arm assembly 15 under the action of self gravity can drive the bending frame 13 to rotate from the first equilibrium state to the second equilibrium state due to the reduction of the value of the third moment.

When the bending frame 13 moves completely to the second equilibrium state, the second moment applied by the locking assembly 14 to the moment arm assembly 15 can ensure that the bending frame 13 cannot easily rotate from the second equilibrium state to the first equilibrium state when the edge of the glass is pressed by manpower, wherein a further requirement for the second moment is that the second moment can be equal to or greater than the maximum moment that can be formed by manpower pressing.

As shown in fig. 1 to 4, the arm assembly 15 includes a cantilever 151 and a weight 152 disposed on the cantilever 151. In some embodiments, the balancing weight 152 may be integrally formed with the cantilever 151, or the balancing weight 152 may be a part of the cantilever 151 with a larger density, so that the cantilever 151 and the balancing weight 152 cannot be visually distinguished from each other.

The first end of the cantilever 151 is connected to the bending frame 13, and the second end of the cantilever 151 is suspended outside the bending frame 13. The distance between the balancing weight 152 and the first end of the cantilever 151 is greater than the distance between the balancing weight 152 and the second end of the cantilever 151. So that the center of gravity of the moment arm assembly 15 is located closer to the second end of the cantilever 151. The balancing weight 152 is used for adjusting the weight and the gravity center of the whole moment arm assembly 15, so that the relationship between the first moment and the third moment can be better satisfied.

The support frame 12 is rotatably connected to the bending frame 13 by a switching portion 121, and the first end of the cantilever 151 and the second end of the cantilever 151 are respectively located at two sides of the switching portion 121. The moment arm assembly 15 always has a tendency to rotate the flexure bracket 13 in the second direction of rotation.

Further, as shown in fig. 1, in some embodiments, the moment arm assemblies 15 are disposed on two sides of the bending frame 13. The cantilevers 151 of the two moment arm assemblies 15 may be connected by a connecting rod 153. Assuming that the left-right direction is the longitudinal direction of the bent glass-molding die 10 as shown in fig. 1, the second end of the cantilever 151 extends substantially along the longitudinal direction of the bent glass-molding die 10 with respect to the first end of the cantilever 151. The connection rod 153 is disposed along the width direction of the bent glass molding die 10.

Further, in some embodiments, as shown in fig. 1-4, when the curved shelf 13 is rotated to the second equilibrium state, the locking assembly 14 acts between the moment arm assembly 15 and the support frame 12 for applying a second moment to the moment arm assembly 15 that resists rotation thereof in the first direction.

The locking assembly 14 indirectly prevents rotation of the curved shelf 13 relative to the support shelf 12 in the first direction by preventing rotation of the moment arm assembly 15 in the first direction.

Specifically, in one embodiment, as shown in fig. 1 to 4, when the bending frame 13 is rotated to the second equilibrium state, the locking assembly 14 acts between the cantilever 151 and the supporting frame 12 to apply a second moment to the moment arm assembly 15, which resists rotation in the first direction.

Further, as shown in fig. 1, in some embodiments, the curved glass forming mold 10 further includes a base 11, the support frame 12 is disposed on the base 11, the base 11 is provided with a rest position 111, and when the curved frame 13 rotates to the second equilibrium state, the base 11 is supported below the moment arm assembly 15 by the rest position 111. The curved shelf 13 and the support shelf 12 can be stabilized in a position where the curved support surface 122 is formed under the supporting action of the base 11.

As shown in fig. 1, the locking assembly 14 is disposed on the base 11, and when the bending frame 13 is rotated to the second equilibrium state, the locking assembly 14 provides a force to the arm assembly 15 to rest on the rest position 111. So that the arm assembly 15 can be reliably positioned at the rest position 111, and the bending frame 13 cannot be easily rotated in the first direction even when the glass edge is manually pressed.

Specifically, in some embodiments, as shown in fig. 1 to 4, the docking station 111 is an upper surface of a support member provided on the base 11.

Further, as shown in fig. 2 to 4, the end of the arm assembly 15 away from the bending frame 13 is provided with a bolt 154. The length direction of the arm assembly 15 is not parallel to the axis direction of the bending frame 13 relative to the rotation of the supporting frame 12. The axial direction of the bolt 154 intersects the length direction of the moment arm assembly 15. When the bending frame 13 is in the second balanced state, one end face of the bolt 154 is pressed against the rest position 111, and the locking assembly 14 is pressed against the other end face of the bolt 154.

Specifically, in one embodiment, as shown in fig. 2 to 4, the bolt 154 is provided at the second end of the cantilever 151. The length direction of the cantilever 151 is not parallel to the axis direction in which the bending bracket 13 rotates with respect to the supporting bracket 12. The axial direction of the bolt 154 intersects the longitudinal direction of the cantilever 151.

As shown in fig. 4, the bolt 154 is captured between the rest position 111 and the locking assembly 14 when the curved shelf 13 is in the second equilibrium state.

More specifically, in one embodiment, as shown in fig. 2-4, the locking assembly 14 includes a rotatable locking block 141. The locking block 141 can be triggered to rotate during the process of rotating the bending frame 13 from the first equilibrium state to the second equilibrium state, so that when the bending frame 13 is in the second equilibrium state, the locking block 141 abuts against one end of the arm assembly 15 away from the bending frame 13, and further, the locking block 141 abuts against one side of the cantilever 151 away from the rest position 111.

Specifically, as shown in fig. 4, in an embodiment, when the bending frame 13 is in the second balanced state, the locking block 141 is pressed against an end surface of the bolt 154 facing away from the rest position 111.

The locking block 141 presses on the arm assembly 15 by its own weight, thereby providing a force to the arm assembly 15 that resists rotation in the first direction.

It should be noted that, the magnitude of the force applied to press the glass edge by manpower is within a certain range, and the added weight of the locking block 141 can be satisfied to overcome the force applied to the bending frame 13 during manual pressing, so that the bending frame 13 will not rotate along the first direction.

In particular, in some embodiments, the locking block 141 is rotatably disposed on the base 11. When the bending frame 13 is in the second balanced state, the end of the arm assembly 15 away from the bending frame 13 is pressed by the locking block 141, so that the arm assembly 15 cannot easily rotate relative to the base 11, and finally the effect that the bending frame 13 cannot easily rotate relative to the supporting frame 12 along the first direction is achieved.

In particular, the rotation of the locking block 141 may be actively driven by a driving member, for example, a driving motor may be further provided, and the driving motor is in driving connection with the locking block 141.

Alternatively, as shown in fig. 2 to 4, in one embodiment, the locking block 141 is provided with a trigger lever 142. The path taken by the end of the moment arm assembly 15 away from the bending frame 13 during the process of the bending frame 13 rotating from the first equilibrium state to the second equilibrium state is a first path, specifically, the path taken by the second end of the cantilever 151 is a first path. The locking block 141 is rotatable relative to the base 11 between an unlocked position and a locked position. When the locking assembly 14 is in the unlocked state, the lock block 141 is located at the unlocked position, and when the locking assembly 14 is in the locked state, the lock block 141 is located at the locked position.

As shown in fig. 2 and 3, when the locking block 141 is in the unlocking position, the locking block 141 is arranged out of the first path in a staggered manner. The position of the locking block 141 does not interfere with the rotation of the bending bracket 13 or the moment arm assembly 15.

While the lock block 141 is in the unlock position, as shown in fig. 2 and 3, a portion of the trigger lever 142 is located on the first path. The end of the arm assembly 15 remote from the bending bracket 13 moves along a first path during the rotation of the bending bracket 13 from the first equilibrium state to the second equilibrium state, specifically, the second end of the cantilever 151 moves along the first path and can push against the portion of the trigger lever 142 located on the first path, so that the locking block 141 rotates to the locking position shown in fig. 4.

As shown in fig. 4, when the locking block 141 is located at the locking position, the locking block 141 abuts against an end of the arm assembly 15 away from the bending frame, specifically, the locking block 141 abuts against a side of the cantilever 151 away from the docking position 111. Thereby providing a force to the moment arm assembly 15 and the flexure bracket 13 that resists rotation in a first direction.

Further, as shown in fig. 2 and 4, in one embodiment, the locking block 141 is directly or indirectly engaged with the support frame 12 through the locking shaft 143, specifically, the locking block 141 is engaged with the base 11 through the locking shaft 143, so as to achieve the indirect relative rotational engagement with the support frame 12. Furthermore, in some embodiments, the locking block 141 may also be directly in rotational engagement with the support frame 12 via the locking shaft 143. The locking shaft 143 is arranged outside the first path in a staggered manner, the locking shaft 143 is provided with a first rotation stopping member 144, and the direction of rotation of the locking block 141 from the locking position to the unlocking position is a third rotation direction. As shown in fig. 3, the steering indicated by the arrow TR2 is the third steering. When the locking block 141 is in the unlocking position, the first rotation stopping member 144 abuts against the base 11 to achieve indirect relative fixation and abutment with the support frame 12, so as to prevent the locking block 141 from continuing to rotate along the third rotation direction.

Of course, alternatively, in some embodiments, when the locking block 141 is in the unlocked position, the first rotation stop 144 may also directly abut the support frame 12 to prevent the locking block 141 from continuing to rotate along the third rotation direction.

It will be appreciated that the provision of the first rotation stop 144 enables the lock block 141 to be stably located in the unlocked position without excessive rotation causing interference with the arm assembly 15. Meanwhile, when the trigger lever 142 is provided on the locking block 141, as shown in fig. 2 and 3, if it is required to ensure that the trigger lever 142 can partially pass through the first path, the locking block 141 needs to be stably located at the unlocking position. The first rotation stop 144 then ensures that the locking block 141 is stably located in the unlocked position, thereby enabling a portion of the trigger lever 142 to be located on the first path.

As shown in fig. 2 and 3, in one embodiment, when the bending frame 13 is switched between the first equilibrium state and the second equilibrium state, the arm assembly 15 sweeps a space that is a first space, specifically, the cantilever 151 sweeps a space that is a first space, the locking block 141 in the unlocked position is located outside the first space, and the locking shaft 143 is located outside the first space. At this time, the lock block 141 and the lock shaft 143 do not interfere with the arm assembly 15, and the position of the lock block 141 needs to be switched by the trigger lever 142.

In further detail, in one embodiment, as shown in fig. 1 to 4, the base 11 is located at one side of the first space, and the locking block 141 and the locking shaft 143 in the unlocking position are located at the other side of the first space.

In other embodiments, the locking block 141 in the unlocked position is located on an extension of the cantilever 151 in the length direction. As long as the locking block 141 can ultimately be rotated against the cantilever 151, the rotation of the cantilever 151 in the first direction is prevented.

Further, as shown in fig. 1, in one embodiment, the moment arm assemblies 15 are disposed on two sides of the bending frame 13, at least two locking assemblies 14 are disposed, and one moment arm assembly 15 corresponds to at least one locking assembly 14.

Further, as shown in fig. 1, in one embodiment, there are two bending frames 13, and the two bending frames 13 are respectively connected to two ends of the supporting frame 12 in a rotating manner. The surface of the support frame 12 and the surfaces of the two curved frames 13 in the second equilibrium together form the curved support surface 122. At least two locking assemblies 14 are provided, and one bending frame 13 corresponds to at least one locking assembly 14.

In the schematic structural view shown in fig. 1, the bent glass-forming mold 10 includes four of the locking assemblies 14. Two bending frames 13, one bending frame 13 corresponds to two arm assemblies 15. So that one of the moment arm assemblies 15 corresponds to one of the locking assemblies 14.

In some embodiments, as shown in fig. 2 to 4, the base 11 is provided with a fixing member 112, and the locking assembly 14 is disposed on the fixing member 112.

Specifically, as shown in fig. 2 to 4, the locking block 141 is rotatably provided on the fixing member 112.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims

1. A bent glass forming mold, comprising:

a support frame;

the bending frame is rotationally connected with the supporting frame; the bending frame is provided with a force arm assembly, and the gravity center of the force arm assembly and the gravity center of the bending frame are arranged in an ectopic manner;

a locking assembly acting between the moment arm assembly and the support frame when the bending frame is rotated to the second equilibrium state;

the locking assembly comprises a rotatable locking block, the locking block can be triggered to rotate in the process that the bending frame rotates from the first balance state to the second balance state, so that when the bending frame is in the second balance state, the locking block is propped against one end, far away from the bending frame, of the moment arm assembly, and is used for applying a second moment for preventing the moment arm assembly from rotating along the first rotation.

2. A bent glass forming mold according to claim 1, wherein the locking assembly has an unlocked state and a locked state, the locking assembly acting between the moment arm assembly and the support frame and applying a second moment to the bent frame that resists rotation thereof in the first direction, the bent frame being capable of triggering the locking assembly to transition from the unlocked state to the locked state during the rotation of the bent frame from the first equilibrium state to the second equilibrium state.

3. A bent glass forming mold according to claim 1, wherein the moment arm assembly is capable of applying a first moment to the bent frame under its own weight that is rotated from the first equilibrium state to the second equilibrium state.

4. A bent glass forming mold according to claim 3, wherein the portion of the support frame rotationally connected to the bending frame is a joint portion, and the center of gravity of the bending frame and the center of gravity of the arm assembly are located on both sides of the joint portion, respectively.

5. A bent glass forming mold according to claim 3, wherein a sum of a moment applied to the bending frame to rotate the bending frame in the first direction and a moment applied to the bending frame by gravity of the bending frame itself to rotate the bending frame in the first direction is a third moment;

6. The bent glass forming die according to claim 3, wherein the arm assembly comprises a cantilever and a balancing weight arranged on the cantilever, a first end of the cantilever is connected with the bending frame, a second end of the cantilever is suspended outside the bending frame, a part of the support frame, which is rotationally connected with the bending frame, is a switching part, the first end of the cantilever and the second end of the cantilever are respectively positioned on two sides of the switching part, and a distance between the balancing weight and the first end of the cantilever is greater than a distance between the balancing weight and the second end of the cantilever.

7. The bent glass forming mold according to claim 1, wherein the lock block is provided with a trigger lever, a path through which one end of the arm assembly, which is far away from the bending frame, passes in the process of rotating the bending frame from the first equilibrium state to the second equilibrium state is a first path, and the lock block can rotate between an unlocking position and a locking position;

8. The bent glass forming die according to claim 7, wherein the locking block is directly or indirectly in running fit with the supporting frame through a locking shaft, the locking shaft is arranged outside the first path in a staggered manner, the locking shaft is provided with a first rotation stopping member, the rotation direction of the locking block from the locking position to the unlocking position is a third rotation direction, and when the locking block is located at the unlocking position, the first rotation stopping member directly or indirectly abuts against the supporting frame to prevent the locking block from continuing to rotate along the third rotation direction.

9. The bent glass forming mold according to claim 8, wherein the moment arm assembly sweeps a space as a first space when the bending frame is switched between the first equilibrium state and the second equilibrium state, the lock block in the unlock position is located outside the first space, and the lock shaft is located outside the first space.

10. A curved glass forming mold in accordance with claim 3, further comprising a base, wherein the support frame is provided on the base, the base being provided with a rest position by which the base is supported below the moment arm assembly when the curved frame is rotated to the second equilibrium state;

11. The bent glass forming die according to claim 10, wherein a bolt is provided at one end of the arm assembly away from the bending frame, the length direction of the arm assembly is not parallel to the axis direction of rotation of the bending frame relative to the supporting frame, the axial direction of the bolt intersects with the length direction of the arm assembly, when the bending frame is in the second balanced state, one end face of the bolt is pressed against the stop position, and the locking assembly is pressed against the other end face of the bolt.

12. A bent glass forming mold according to any one of claims 3 to 11, wherein the arm assemblies are provided on both sides of the bending frame, and at least two locking assemblies are provided, and one arm assembly corresponds to at least one locking assembly.

13. The bent glass forming mold according to any one of claims 1 to 11, wherein there are two bending frames, the two bending frames are respectively rotatably connected to two ends of the supporting frame, the surface of the supporting frame and the surfaces of the two bending frames in the second equilibrium state together form the bending supporting surface, the number of the locking assemblies is at least two, and one bending frame corresponds to at least one locking assembly.