A punch structure of a press molding die and a press molding apparatus

Abstract

The utility model relates to glass forming die technical field, concretely relates to a male die structure of press forming die and press forming equipment, including press main part and male die, male die includes metal template and mounting bracket, metal template is divided into the forming surface and assembly surface of setting away from each other along the thickness direction of itself, mounting bracket is connected with the drive portion of press main part through bolt, and mounting bracket includes the frame and box body that are connected, and the frame is assembled and connected with metal template along assembly surface edge. The utility model adopts metal template to replace resin board, and metal material thermal expansion coefficient is lower, and heat deformation resistance is strong, can effectively guarantee glass forming precision and optical quality, simultaneously, metal template can carry out precision milling processing directly according to the profile data, and glass modeling control is more accurate, can further improve the profile and optical quality of glass. Metal template is connected through with the frame of mounting bracket, and can be assembled to the positioning plate of relevant extrusion forming machine.

Description

Technical Field

[0001] This utility model relates to the field of glass forming mold technology, and in particular to a punch structure for a pressing mold and a pressing equipment. Background Technology

[0002] In glass extrusion molding dies, the punch surface is typically made of a resin plate, which is a mixture of resin and aluminum powder solidified. However, this material has a high coefficient of thermal expansion, and during mass production, it is prone to deformation due to repeated heating and cooling, affecting the glass forming accuracy and optical effects. In severe cases, it can even cause the resin plate to crack and fail, requiring frequent replacement. Furthermore, the resin plate solidifies on the sample glass surface relying on the resin's fluidity, making it impossible to actively adjust the surface data of the resin plate. Simultaneously, controlling the resin-to-aluminum powder ratio is difficult: if the resin is too thick, its poor fluidity easily leads to pinholes; if it is too thin, it is difficult to maintain its shape at the edges of glass with large curvatures, preventing complete solidification. Uneven mixing of resin and aluminum powder can also cause localized peeling of the resin plate under high-temperature conditions, further damaging the local optical quality of the glass. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a punch structure that is easy to manufacture and ensures the accuracy of glass forming and optical effect.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a punch structure for a pressing molding die, including a metal template, wherein the metal template is divided into a forming surface and an assembly surface that are set opposite to each other along its own thickness direction; The mounting bracket includes a connected frame and a housing, wherein the frame is assembled and connected to a metal template along the edge of the mounting surface.

[0005] Furthermore, the box body has a flanged portion, and the box body is connected to the mounting surface of the metal template through the flanged portion.

[0006] Furthermore, a sealing element is provided between the flanged portion of the box and the frame.

[0007] Furthermore, the metal template is provided with an exhaust vent, and the exhaust vent penetrates the forming surface and the assembly surface.

[0008] Furthermore, the housing is provided with an exhaust pipe, which is connected to an exhaust through hole, and a flange is provided at the end of the exhaust pipe away from the frame.

[0009] Furthermore, the mounting bracket also includes a mounting base and a support base, the mounting base being connected to the frame via the support base, and the mounting base having bolt grooves.

[0010] Furthermore, the support base includes a support ring and support rods, and multiple support rods are spaced apart between the support ring and the frame along the outline of the frame.

[0011] Furthermore, the mounting base is provided with a plurality of connecting blocks at intervals, and the connecting blocks are connected to the support ring.

[0012] Furthermore, the distance between adjacent support rods is 180mm to 220mm.

[0013] To solve the above-mentioned technical problems, another technical solution adopted by this utility model is: a pressing and forming equipment, including a press body, wherein a pressing and forming mold is assembled on the drive part of the press body, and the punch structure of the pressing and forming mold is the punch structure described in the above-mentioned technical solution.

[0014] The beneficial effects of this invention are as follows: Using a metal template instead of a resin plate, the metal material has a lower coefficient of thermal expansion and stronger resistance to thermal deformation, effectively ensuring the precision and optical quality of glass forming. Simultaneously, the metal template can be precisely milled directly based on the surface data, allowing for more accurate control over the glass shape and further improving the surface and optical quality of the glass. The metal template is connected to the frame of the mounting bracket and can then be assembled and positioned onto the drive unit of the relevant press. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the punch structure of a pressing mold proposed in this utility model; Figure 2 This is a schematic diagram of the forming surface of a metal template with a punch structure for a pressing mold proposed in this utility model. Figure 3 This is a partial cross-sectional view of the assembly of the box and frame of a pressing mold proposed in this utility model. Figure 4 for Figure 2 An enlarged view of part A of a compression molding die; Figure 5 for Figure 1 An enlarged view of part B of a compression molding die; Figure 6 for Figure 3 An enlarged view of section C of a compression molding die; Label Explanation: 1. Metal template; 11. Forming surface; 12. Assembly surface; 13. Vent hole; 14. Threaded hole; 2. Mounting bracket; 21. Frame; 211. Assembly hole; 22. Housing; 221. Flanged edge; 222. Exhaust pipe; 23. Mounting base; 231. Bolt groove; 232. Connecting block; 24. Support base; 241. Support ring; 242. Support rod; 3. Seals; 4. Flanges. Detailed Implementation

[0016] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0017] Glass pressing molds consist of a concave mold and a convex mold. The concave mold supports the softened glass, while the convex mold extrudes and shapes the glass, maintaining pressure for a period of time to achieve the desired curvature. Currently, the convex mold surface is typically made of a resin plate, a mixture of resin and aluminum powder that has solidified. However, this resin plate has a high coefficient of thermal expansion, making it prone to deformation during mass production due to repeated heating and cooling. This deformation affects the glass forming accuracy and optical effects, and in severe cases, can even lead to cracking and failure of the resin plate, requiring frequent replacement. In this embodiment, a metal template 1 and a mounting frame 2 are assembled, and then the mounting frame 2 is connected to the drive unit of the press. This not only avoids deformation of the metal template 1 due to repeated heating and cooling, but also allows the surface of the metal template 1 to be precisely milled based on the surface data, resulting in more accurate control over the glass shaping.

[0018] Please refer to Figures 1 to 3 As shown, the present invention discloses a punch structure for a pressing molding die, including a metal template 1 and a mounting frame 2. The metal template 1 is divided into a forming surface 11 and an assembly surface 12 that are set opposite to each other along its own thickness direction. The mounting frame 2 includes a frame 21 and a box 22 connected together. The frame 21 is assembled and connected to the metal template 1 along the edge of the assembly surface 12.

[0019] Working principle: During assembly, the mounting surface 12 of the metal template 1 is connected to the frame 21 of the mounting bracket 2. This connection can be achieved through bolts, clamps, or welding to form a punch for extruding and forming glass. The mounting bracket 2 is then connected to the drive unit of the press using bolts to press and form the corresponding glass. Using the metal template 1 instead of the resin plate offers advantages. Metal materials have a lower coefficient of thermal expansion and stronger resistance to thermal deformation, effectively ensuring the precision and optical quality of glass forming. Furthermore, the metal template 1 can be precisely milled based on the surface data, allowing for more accurate control over the glass shape and further improving the surface and optical quality of the glass.

[0020] It is worth noting that the metal template 1 is made of hard metals such as aluminum and steel.

[0021] In some implementations, please refer to Figure 5 and Figure 6As shown, the housing 22 has a flange 221, which connects the housing 22 to the mounting surface 12 of the metal template 1. The flange 221 can be connected to the metal template 1 by welding or by screw fixing.

[0022] For preferred options, please refer to [the provided text]. Figure 4 and Figure 5 As shown, the metal template 1 has a threaded hole 14, and the frame 21 has an assembly hole 211 that matches the threaded hole 14. Bolts pass through the assembly hole 211 and the flange 221 in sequence and are threadedly connected to the threaded hole 14. The diameter of the assembly hole 211 is larger than the diameter of the threaded hole 14, which facilitates the bolts to pass through the assembly hole 211 and be threadedly connected to the threaded hole 14.

[0023] It is worth noting that the bolt thread must not extend beyond the forming surface 11 of the metal template 1 to avoid affecting the closing of the metal template 1 and the die.

[0024] In some implementations, please refer to Figure 6 As shown, a sealing element 3 is provided between the flange 221 of the box 22 and the frame 21. During the negative pressure adsorption of glass by the metal template 1, the sealing element 3 is used to prevent air from entering through the gap between the box 22 and the frame 21, thereby ensuring the adsorption effect of the metal template 1 on the glass.

[0025] In some implementations, please refer to Figure 2 and Figure 3 As shown, the metal template 1 is provided with an exhaust vent 13, which extends through the forming surface 11 and the assembly surface 12. A negative pressure is created at the exhaust vent 13 using a vacuum device, thereby adsorbing and fixing the glass onto the metal template 1.

[0026] For details, please refer to Figure 1 As shown, the housing 22 is equipped with an exhaust pipe 222, which communicates with the exhaust port 13. A flange 4 is located at the end of the exhaust pipe 222 furthest from the frame 21. The exhaust pipe 222 is connected to a relevant extraction pipe or extraction device via the flange 4. During the glass adsorption process, the exhaust pipe 222 creates a negative pressure at the exhaust port 13, thereby adsorbing and fixing the glass onto the metal template 1.

[0027] In some implementations, please refer to Figure 1 As shown, the mounting frame 2 also includes a mounting base 23 and a support base 24. The mounting base 23 is connected to the frame 21 via the support base 24, and the mounting base 23 is provided with a bolt groove 231. The support base 24 supports the mounting base 23 between the frame 21 to enhance the strength of the mounting frame 2. The mounting frame 2 can be easily assembled with the drive unit of the compression molding equipment via the bolt groove 231 on the mounting base 23.

[0028] In some implementations, please refer to Figure 1 As shown, the support base 24 consists of a support ring 241 and multiple support rods 242, which can reduce the weight of the support base 24. The support base 24 is connected to the mounting base 23 via a connecting block 232, and the support base 24 is connected to the frame 21 via the support rods 242, so that the support base 24 can be supported between the frame 21 and the mounting base 23 to ensure the service strength of the punch structure.

[0029] It is worth noting that the connecting block 232 is connected to the support ring 241 by welding. The support rod 242 can be connected to the support ring 241 and the frame 21 by welding. The support rod 242 can also be connected to the support ring 241 and / or the frame 21 by threaded connection.

[0030] The distance between adjacent support rods 242 includes, but is not limited to, 180mm, 185mm, 190mm, 195mm, 200mm, 205mm, 210mm, 215mm, and 220mm. By limiting the distance between adjacent support rods 242, the overall punch structure is made lightweight while ensuring its strength.

[0031] This utility model discloses a pressing and molding equipment, including a press body, and a pressing and molding die is assembled on the drive part of the press body. The punch structure of the pressing and molding die is the punch structure in the above-mentioned technical solution.

[0032] Working principle: Since the punch structure assembled on the drive part of the press body uses a metal template 1 instead of a resin plate and mounting frame 2 for assembly, it can avoid the deformation of the forming surface 11 due to repeated heating and cooling, and can improve the precision of glass shaping control.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A punch structure for a pressing and forming die, characterized in that: It includes a metal template (1), which is divided into a forming surface (11) and an assembly surface (12) that are set opposite to each other along its thickness direction. Mounting bracket (2), which includes a connected frame (21) and a housing (22), wherein the frame (21) is assembled and connected to the metal template (1) along the edge of the mounting surface (12).

2. The punch structure of the pressing die according to claim 1, characterized in that: The box body (22) has a flange (221), and the box body (22) is connected to the mounting surface (12) of the metal template (1) through the flange (221).

3. The punch structure of the pressing die according to claim 2, characterized in that: A sealing element (3) is provided between the flange (221) of the box body (22) and the frame (21).

4. The punch structure of the pressing die according to claim 1, characterized in that: The metal template (1) is provided with an exhaust hole (13), and the exhaust hole (13) is provided through the molding surface (11) and the assembly surface (12).

5. The punch structure of the pressing die according to claim 4, characterized in that: The housing (22) is provided with an exhaust pipe (222), which is connected to an exhaust through hole (13). A flange (4) is provided at one end of the exhaust pipe (222) away from the frame (21).

6. The punch structure of the pressing die according to claim 1, characterized in that: The mounting bracket (2) further includes a mounting base (23) and a support base (24). The mounting base (23) is connected to the frame (21) through the support base (24). The mounting base (23) is provided with a bolt groove (231).

7. The punch structure of the pressing die according to claim 6, characterized in that: The support base (24) includes a support ring (241) and support rods (242), and multiple support rods (242) are provided at intervals along the outline of the frame (21) between the support ring (241) and the frame (21).

8. The punch structure of the pressing die according to claim 7, characterized in that: The mounting base (23) is provided with a plurality of connecting blocks (232) spaced apart, and the connecting blocks (232) are connected to the support ring (241).

9. The punch structure of the pressing die according to claim 7, characterized in that: The distance between adjacent support rods (242) is 180mm to 220mm.

10. A compression molding device, characterized in that: The press includes a press body, and a pressing die is assembled on the drive part of the press body. The punch structure of the pressing die is the punch structure according to any one of claims 1 to 9.

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