Mold and molding device

Abstract

The utility model provides a mold and a forming device, and relates to the technical field of vehicle-mounted cover plate glass forming. The mold is used for forming vehicle-mounted cover plate glass and comprises a male mold and a female mold. The male die and the female die are oppositely arranged in the vertical direction, the male die is arranged on the lower portion, and the female die comprises a plane forming module and a special-shaped face forming module which are arranged in the horizontal direction. The female die is arranged on the upper portion, before the cover plate glass is formed, the two sides of the cover plate glass make contact with the cover plate glass, more contact points are arranged compared with a male die on the upper portion, and the risk that the cover plate glass is broken is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle cover glass molding, and in particular to a mold and a molding device. Background Art

[0002] Automotive glass cover refers to the protective glass cover used on the outermost surface of the display device inside the car, such as the outermost layer of glass on the screen of the dashboard, center console or in-car entertainment system, which provides protection for the driver and passengers during visualization and operation.

[0003] The vehicle-mounted glass cover is usually formed by a mold, that is, it includes an upper mold and a lower mold, which are combined to form a cavity. The blank is accommodated in the cavity and is formed under the action of pressure and high temperature.

[0004] The inventor found that for special-shaped vehicle-mounted glass cover plates, it is easy to break when the mold is closed. The reason is that the upper mold and the lower mold are mostly integrated structures. When the vehicle-mounted glass cover plate is placed in the mold cavity in the initial state before deformation, the vehicle-mounted glass cover plate will be affected by the overall weight of the upper mold, causing the vehicle-mounted glass cover plate to bend and plastically deform. When the flexural strength of the vehicle-mounted glass cover plate is exceeded, the glass cover plate will break. For example, the jig for hot bending of 3D vehicle-mounted cover plate glass disclosed in the prior art CN218202540U is a structure of a concave mold and a convex mold integrated, so when the vehicle-mounted glass cover plate is formed, the glass cover plate has the risk of breaking. Utility Model Content

[0005] A technical problem to be solved by the present application is: how to reduce the risk of the vehicle-mounted glass cover plate being broken during the molding of the vehicle-mounted glass cover plate.

[0006] In order to solve the above technical problems, on the one hand, the embodiment of the present application provides a mold for forming a vehicle cover glass, including a male mold and a female mold. The male mold and the female mold are arranged relative to each other in the up and down direction, the male mold is arranged at the bottom, and the female mold includes a plane forming module and a special-shaped surface forming module arranged in the horizontal direction.

[0007] In some embodiments, the special-shaped surface forming module includes a curved surface forming module and a bent surface forming module.

[0008] In some embodiments, the planar molding module includes a first planar module and a second planar module.

[0009] In some embodiments, the special-shaped surface forming module includes a curved surface forming module and a bent surface forming module, and the bent surface forming module, the second plane module, the curved surface forming module and the first plane module are arranged in sequence along the horizontal direction.

[0010] In some embodiments, a positioning portion is provided on the side of the punch close to the die, and a matching portion is provided on the side of the die close to the punch; or, a matching portion is provided on the side of the punch close to the die, and a positioning portion is provided on the side of the die close to the punch, and the positioning portion is at least partially accommodated in the matching portion.

[0011] In some embodiments, the positioning portion and the mating portion are clearance-fitted.

[0012] In some embodiments, the male mold includes a male cavity, and the male cavity is provided with first limit blocks on both sides along the length direction of the male cavity, and the male cavity is provided with second limit blocks on both sides along the width direction of the male cavity.

[0013] In some embodiments, the convex cavity includes a first positioning cavity, and the first positioning cavity is provided with openings on one side facing the convex cavity along the length direction and on one side facing the concave mold along the up and down directions, and the first limit block is partially accommodated in the first positioning cavity.

[0014] In some embodiments, the convex cavity includes a second positioning cavity, and the second positioning cavity is provided with openings on a side facing the convex cavity along the width direction and on a side facing the concave mold along the up and down directions, and the second limit block is partially accommodated in the second positioning cavity.

[0015] On the other hand, the embodiment of the present application also provides a molding device, comprising the mold, heating device and pressure device in the above embodiment. The heating device is used to heat the special-shaped surface molding module, and the pressure device is used to make the plane molding module pressurize the male mold.

[0016] Through the above technical solution, the male mold is set at the bottom and the female mold is set at the top. When the male mold and the female mold are closed, the gravity force of the female mold on the cover glass is smaller than the gravity force of the traditional male mold on the top, thereby reducing the risk of the cover glass breaking.

[0017] When the conventional mold has the punch on top, before the cover glass is formed, the middle area of ​​the punch contacts the cover glass, and there are fewer contact points between the punch and the cover glass. In the embodiment of the present application, the concave mold is on top, and before the cover glass is formed, both sides of the cover glass contact the cover glass, and there are more contact points compared to when the punch is on top, thereby reducing the risk of the cover glass breaking.

[0018] The curved surface forming module and the bent surface forming module are separately arranged, so that the curved surface forming module and the bent surface forming module can each fit more closely with the cover glass, thereby reducing the risk of the cover glass breaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the structure of a mold provided in some embodiments of the present application;

[0021] Figure 2 A schematic diagram of the cooperation between the positioning portion and the cooperation portion provided in some embodiments of the present application;

[0022] Figure 3 A schematic diagram of the structure of a first limit block and a second limit block provided in some embodiments of the present application;

[0023] Figure 4 A schematic diagram of the cooperation between the second limiting block and the second positioning cavity provided in some embodiments of the present application.

[0024] Description of reference numerals:

[0025] 1. Punch; 11. Matching part; 12. Second positioning cavity; 2. Concave mold; 21. Bending surface forming module; 22. Second plane module; 23. Curved surface forming module; 24. First plane module; 25. Positioning part; 3. First limiting block; 4. Second limiting block; 5. Cover glass. DETAILED DESCRIPTION

[0026] The following is a further detailed description of the implementation methods of the present application in conjunction with the accompanying drawings and examples. The detailed descriptions of the following examples and the accompanying drawings are used to exemplarily illustrate the principles of the present application, but cannot be used to limit the scope of the present application. The present application can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

[0027] The present application provides these embodiments to make the present application thorough and complete, and to fully express the scope of the present application to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.

[0028] It should be noted that, in the description of this application, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0029] In addition, the words "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0030] It should also be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0031] All terms used in this application have the same meaning as those understood by those of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0032] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0033] See also Figure 1 On the one hand, the embodiment of the present application provides a mold for molding a vehicle cover glass 5, including a male mold 1 and a female mold 2. The male mold 1 and the female mold 2 are arranged relative to each other in the up-down direction, the male mold 1 is arranged at the bottom, and the female mold 2 includes a plane molding module and a special-shaped surface molding module arranged in the horizontal direction.

[0034] The male mold 1 and the female mold 2 are combined to form a cavity, so that the cover glass 5 contained in the cavity can be formed into a desired structure under the action of the female mold 2 and the male mold 1. The specific structure of the cavity can be set according to the desired structure of the cover glass 5. The process of forming the cover glass 5 by combining the male mold 1 and the female mold 2 is well known to those skilled in the art and will not be described in detail here.

[0035] The up-down direction may be a vertical up-down direction, or an inclined up-down direction relatively arranged.

[0036] Traditional molds usually have a male mold 1 on top and a female mold 2 on the bottom. Since the male mold 1 has a protruding structure, the material required to make the male mold 1 may be more than the material required to make the female mold 2, which results in the weight of the male mold 1 being greater than the weight of the female mold 2. When the male mold 1 and the female mold 2 are combined, the cover glass 5 is subjected to the gravity of the male mold 1, which increases the risk of the cover glass 5 breaking.

[0037] In the embodiment of the present application, the male mold 1 is arranged at the bottom and the female mold 2 is arranged at the top. When the male mold 1 and the female mold 2 are molded together, the gravity force of the female mold 2 on the cover glass 5 is smaller than the gravity force on the traditional male mold 1, thereby reducing the risk of breakage of the cover glass 5.

[0038] Furthermore, in the conventional mold, when the punch 1 is on the top, before the cover glass 5 is formed, the middle area of ​​the punch 1 is in contact with the cover glass 5, and there are fewer contact points between the punch 1 and the cover glass 5. In the embodiment of the present application, the die 2 is on the top, and before the cover glass 5 is formed, both sides of the cover glass 5 are in contact with the cover glass 5. Compared with the punch 1 on the top, there are more contact points, which reduces the risk of breakage of the cover glass 5.

[0039] The die 2 includes a plane forming module and a special-shaped surface forming module arranged in a horizontal direction, that is, the die 2 includes multiple modules, so that when the die 2 and the punch 1 are molded together, the contact force points between the cover glass 5 and the die 2 are increased, thereby reducing the risk of the cover glass 5 being broken due to excessive force.

[0040] The plane forming module is used to form the cover glass 5 into a plane structure, and the profiled surface forming module is used to form the cover glass 5 into a profiled surface structure.

[0041] The concave mold 2 includes a plane molding module and a special-shaped surface molding module, that is, the modules are arranged according to the structure of the cover glass 5, so that when the molds are closed, each module can better fit the cover glass 5, reducing the risk of the cover glass 5 being broken due to concentrated force.

[0042] See also Figure 1 In some embodiments, the special-shaped surface forming module includes a curved surface forming module 23 and a bent surface forming module 21 .

[0043] The curved surface forming module 23 is used to form the cover glass 5 into a curved surface structure, and the bent surface forming module 21 is used to form the cover glass 5 into a bent structure.

[0044] The curved surface forming module 23 and the bent surface forming module 21 are separately arranged, so that the curved surface forming module 23 and the bent surface forming module 21 can each be more closely fitted with the cover glass 5, reducing the risk of the cover glass 5 being broken. In addition, the curved surface structure and the bent structure can be arranged at different positions of the cover glass 5 as required. In addition, the forming effect of the curved surface structure and the bent structure of the cover glass 5 is increased.

[0045] See also Figure 1 In some embodiments, the planar forming module includes a first planar module 24 and a second planar module 22 .

[0046] The first planar module 24 and the second planar module 22 are respectively used to form the cover glass 5 into a planar structure.

[0047] The planar structural areas formed by the first planar module 24 and the second planar module 22 on the cover glass 5 may be the same or different.

[0048] The first plane module 24 and the second plane module 22 are separately provided, and the first plane module 24 and the second plane module 22 can each be more closely attached to the cover glass 5, reducing the risk of breakage of the cover glass 5. In addition, other modules can be provided between the first plane module 24 and the second plane module 22 to meet the shape requirements of the cover glass 5.

[0049] See also Figure 1 In some embodiments, the special-shaped surface forming module includes a curved surface forming module 23 and a bending surface forming module 21, and the bending surface forming module 21, the second plane module 22, the curved surface forming module 23 and the first plane module 24 are arranged in sequence along the horizontal direction.

[0050] The bending surface forming module 21 , the first plane module 24 , the curved surface forming module 23 and the second plane module 22 are separately arranged, so that each module can fit more closely with the cover glass 5 , reducing the risk of the cover glass 5 breaking.

[0051] See also Figure 2 In some embodiments, a positioning portion 25 is provided on the side of the punch 1 close to the die 2, and a matching portion 11 is provided on the side of the die 2 close to the punch 1; or, a matching portion 11 is provided on the side of the punch 1 close to the die 2, and a positioning portion 25 is provided on the side of the die 2 close to the punch 1, and the positioning portion 25 is at least partially accommodated in the matching portion 11.

[0052] The positioning portion 25 may be a guide rod disposed on the male die 1 or the female die 2 , and the matching portion 11 may be a guide rod hole disposed on the female die 2 or the male die 1 , and the guide rod is inserted into the guide rod hole.

[0053] The positioning portion 25 may be a protruding portion provided on the side wall of the punch 1 or the die 2 , and the matching portion 11 may be a sliding groove provided on the die 2 or the punch 1 , and the protruding portion is accommodated in the sliding groove.

[0054] The die 2 may be provided with positioning parts 25 in some modules or in all modules.

[0055] The positioning portion 25 cooperates with the matching portion 11 to increase the matching accuracy of the punch 1 and the die 2.

[0056] In some embodiments, the positioning portion 25 and the matching portion 11 are clearance-fitted.

[0057] The positioning portion 25 and the matching portion 11 are clearance-matched, so that the positioning portion 25 can enter the matching portion 11 during mold closing, and the wear of the positioning portion 25 and the matching portion 11 is reduced.

[0058] In some embodiments, part of the surface wall of the male mold 1 is arranged around the female mold 2, or part of the surface wall of the female mold 2 is arranged around the male mold 1. That is, when the molds are closed, the male mold 1 is inserted into the female mold 2, or the female mold 2 is inserted into the male mold 1, which improves the matching accuracy of the two.

[0059] See also Figure 3 and Figure 4 In some embodiments, the punch 1 includes a convex cavity, and the convex cavity is provided with a first limit block 3 on both sides along the length direction of the convex cavity, and the convex cavity is provided with a second limit block 4 on both sides along the width direction of the convex cavity.

[0060] The convex cavity is used to cooperate with the cavity of the concave mold 2 to form a cavity for the cover glass 5 .

[0061] One or more first limiting blocks 3 may be provided on each side of the convex cavity.

[0062] One or more second limiting blocks 4 may be provided on each side of the convex cavity.

[0063] The cover glass 5 is limited in the length direction by the first limiting block 3 and in the width direction by the second limiting block 4, thereby improving the positioning accuracy of the cover glass 5 in the cavity.

[0064] In some embodiments, the convex cavity includes a first positioning cavity, which has openings on one side facing the convex cavity along the length direction and on one side facing the concave mold 2 along the up and down directions, and the first limit block 3 is partially accommodated in the first positioning cavity.

[0065] The first positioning cavity is used to position the first limiting block 3 .

[0066] The first positioning cavity can be arranged on the side wall surface surrounding the convex cavity.

[0067] The opening of the first positioning cavity disposed on one side facing the die 2 in the up-down direction facilitates placement of the first limiting block 3 in the first positioning cavity.

[0068] The opening of the first positioning cavity facing the convex cavity along the length direction enables the first limiting block 3 to be partially disposed in the convex cavity, thereby positioning the cover glass 5 .

[0069] The first positioning cavity may include a first positioning section and a first gap section, and the first limiting block 3 and the first positioning section are slidably matched, that is, the first limiting block 3 and the side wall surface of the first positioning section are matched without gap, so that the first limiting block 3 can be fixed to the first positioning cavity. The first limiting block 3 and the first gap section are gap-matched, which facilitates the first limiting block 3 to be taken out of the first positioning cavity.

[0070] See also Figure 4 In some embodiments, the convex cavity includes a second positioning cavity 12, and the second positioning cavity 12 is provided with openings on the side facing the convex cavity along the width direction and on the side facing the concave mold 2 along the up and down directions, and the second limit block 4 is partially accommodated in the second positioning cavity 12.

[0071] The second positioning cavity 12 is used to position the second limiting block 4 .

[0072] The second positioning cavity 12 can be arranged on the side wall surface surrounding the convex cavity.

[0073] The opening of the second positioning cavity 12 disposed on one side facing the die 2 in the up-down direction facilitates the placement of the second limiting block 4 in the second positioning cavity 12 .

[0074] The opening of the second positioning cavity 12 facing the convex cavity along the length direction enables the second limiting block 4 to be partially disposed in the convex cavity, thereby positioning the cover glass 5 .

[0075] The second positioning cavity 12 may include a second positioning section and a second gap section, and the second limiting block 4 and the second positioning section are slidably matched, that is, the second limiting block 4 and the side wall surface of the second positioning section are matched without gap, so that the second limiting block 4 can be fixed to the second positioning cavity 12. The second limiting block 4 and the second gap section are gap-matched, which facilitates the removal of the second limiting block 4 from the second positioning cavity 12.

[0076] On the other hand, the embodiment of the present application further provides a molding device, comprising the mold, heating device and pressure device in the above embodiment. The heating device is used to heat the special-shaped surface molding module, and the pressure device is used to make the plane molding module pressurize the punch 1.

[0077] The heating device can be a suitable product selected from the prior art. Its structure and working principle are well known to those skilled in the art and will not be described in detail here.

[0078] The pressure device can be a suitable product selected from the prior art. Its structure and working principle are well known to those skilled in the art and will not be described in detail here.

[0079] The heating device is used to heat the special-shaped surface forming module so that the cover glass 5 can be bent and deformed, while the cover glass 5 at the flat surface forming module will not be deformed, so there is no need to set up a heating device, which reduces the energy consumption of the forming device.

[0080] The plane forming device increases the forming effect of the plane of the cover glass 5 by causing the plane forming module to apply pressure to the convex mold 1 .

[0081] So far, various embodiments of the present application have been described in detail. In order to avoid obscuring the concept of the present application, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed herein.

[0082] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.

Claims

1. A mold for molding vehicle cover glass, characterized in that: include: Punch (1); The die (2) comprises a flat surface forming module and a special-shaped surface forming module arranged in a horizontal direction.

2. The mold according to claim 1, characterized in that: The special-shaped surface forming module comprises a curved surface forming module (23) and a bent surface forming module (21).

3. The mold according to claim 1, characterized in that: The planar shaping module comprises a first planar module (24) and a second planar module (22).

4. The mold according to claim 3, characterized in that: The special-shaped surface forming module comprises a curved surface forming module (23) and a bent surface forming module (21), and the bent surface forming module (21), the second plane module (22), the curved surface forming module (23) and the first plane module (24) are arranged in sequence along the horizontal direction.

5. The mold according to any one of claims 1 to 4, characterized in that: A positioning portion (25) is provided on a side of the punch (1) close to the die (2), and a matching portion (11) is provided on a side of the die (2) close to the punch (1); or, a matching portion (11) is provided on a side of the punch (1) close to the die (2), and a positioning portion (25) is provided on a side of the die (2) close to the punch (1), and the positioning portion (25) is at least partially accommodated in the matching portion (11).

6. The mold according to claim 5, characterized in that: The positioning portion (25) and the matching portion (11) are clearance matched.

7. The mold according to any one of claims 1 to 4, characterized in that: The male mold (1) comprises a male cavity, wherein the male cavity is provided with first limit blocks (3) on both sides along the length direction of the male cavity, and second limit blocks (4) on both sides along the width direction of the male cavity.

8. The mold according to claim 7, characterized in that: The convex cavity comprises a first positioning cavity, the first positioning cavity is provided with an opening on one side facing the convex cavity along the length direction and on one side facing the concave mold (2) along the up-down direction, and the first limit block (3) is partially accommodated in the first positioning cavity.

9. The mold according to claim 7, characterized in that: The convex cavity comprises a second positioning cavity (12), the second positioning cavity (12) is provided with an opening on a side facing the convex cavity along the width direction and on a side facing the concave mold (2) along the up-down direction, and the second limit block (4) is partially accommodated in the second positioning cavity (12).

10. A molding device, characterized in that: include: The mold according to any one of claims 1 to 9; A heating device, used for heating the special-shaped surface forming module; A pressure device is used to enable the planar forming module to apply pressure to the male mold (1).

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