Forming die for display mounting table

Abstract

The utility model discloses a forming mold of a display mounting table, which comprises an inner mold structure on which a forming material is paved, an outer mold structure which is a frame structure and on which the forming material and the forming material used for fitting the inner mold structure are paved, and a bottom plate fixing mold, the inner mold structure and the outer mold structure are positioned and mounted; through the inner mold structure and the outer mold structure, the inner mold structure and the outer mold structure can be located and installed on the bottom plate fixing mold, the forming material laid on the outer mold structure can be attached to the forming material laid on the inner mold structure, a final product is integrally formed, mold rotation is not needed in the forming process, technological operation is simple, and the labor cost and the material cost are effectively reduced; the product forming precision is effectively guaranteed, and the product forming quality is greatly improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of composite material molding, and in particular to a molding die for a display mounting table. Background Art

[0002] Traditional multi-cavity complex structure display mounting platforms are divided into metal non-aluminum materials and composite materials.

[0003] At present, most of the monitor mounting platforms in China are made of metal aluminum, and the overall structure is heavy. Since the monitor mounting platform has a large number of mounting interfaces and there are multiple mounting cavities in the structure, the design structure is complex, the processing is difficult and time-consuming, and the cost is high. Moreover, a whole piece of raw material is needed for processing, and most of the raw materials are processed away, resulting in a low raw material utilization rate and high cost, which is not suitable for mass production of products.

[0004] Composite materials are divided into composite flap molding adhesive assembly and composite flap molding bolted assembly;

[0005] Composite material split molding adhesive assembly requires first forming the parts, and then bonding the display mounting platform body and the left and right brackets with structural adhesive. The main defect is that under the action of the external tensile or shear load, due to the obvious interface between the composite material left and right brackets and the display mounting base adhesive interface, it is easy to break; and this method has cumbersome procedures, and each component needs to be pre-formed first, and then the product is subjected to the overall adhesive assembly process. The product has poor stability and reliability, low failure load, and significantly increased labor manufacturing costs and material manufacturing costs;

[0006] The composite material split-flap molding bolted assembly requires the parts to be molded first, and then the display mounting base body and the left and right brackets are connected and fixed by rivets. The main defect is that since the display mounting base body and the left and right brackets are connected by bolts, holes need to be opened on each part of the composite product. The holes will interrupt some fibers in the composite material body and affect the overall structural strength of the product. Under the action of additional tensile or shear loads, the product's carrying capacity is significantly reduced. Summary of the invention

[0007] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a molding die for a display mounting table.

[0008] In a first aspect, the present application provides a molding die for a display mounting platform, comprising:

[0009] An inner mold structure, on which molding material is laid;

[0010] An outer mold structure, the outer mold structure is a frame structure, which is arranged outside the inner mold structure, and the circumferential inner wall of the outer mold structure is paved with molding material, and the molding material of the outer mold structure is used to fit the molding material of the inner mold structure;

[0011] The bottom plate fixed mold has a length direction extending along a first direction, and the inner mold structure and the outer mold structure are both positioned and installed on the top of the base fixed mold.

[0012] According to the technical solution provided in the embodiment of the present application, the inner mold structure includes a base pre-laying mold, the length direction of which extends along the first direction, the base pre-laying mold is arranged at the center position of the top of the bottom plate fixed mold, and the inner mold structure also includes two bracket pre-laying molds, the bracket pre-laying molds are C-shaped structures, the two bracket pre-laying molds have openings facing each other and are symmetrically arranged on the top of the bottom plate fixed mold, and are respectively located at both ends of the top of the bottom plate fixed mold, and the bottom of the bracket pre-laying mold has a first mounting portion, and the first mounting portion is positioned and installed on the top of the bottom plate fixed mold.

[0013] According to the technical solution provided in the embodiment of the present application, the inner mold structure further includes a filling piece and a connecting piece, wherein the filling piece is arranged at the center position of the top of the base pre-molding, and is used to fill the gap between the two first mounting parts and ensure the positioning and installation of the two bracket pre-molding parts;

[0014] The connecting piece is used to connect the two tops of the bracket pre-moulds, and the top of the bracket pre-mould has a first connecting part. Second connecting parts are arranged at both ends of the connecting piece, and the first connecting part and the second connecting part are fixedly connected.

[0015] According to the technical solution provided in the embodiment of the present application, the outer mold structure includes two first split female molds, the two first split female molds are both positioned and installed on the top of the bottom plate fixed mold, and are symmetrically arranged, and the two first split female molds are respectively located at the two ends of the base pre-laying mold in the first direction;

[0016] The outer mold structure also includes a second split female mold and a third split female mold, which are symmetrically arranged on the top of the bottom plate fixed mold and are respectively located on both sides of the base pre-laying mold in the second direction, and both ends of the second split female mold and the third split female mold are connected to the first split female mold; the first direction is perpendicular to the second direction.

[0017] According to the technical solution provided in the embodiment of the present application, the two side walls of the first split-flap female mold in the second direction respectively form a first guide track and a second guide track, which respectively fit the second split-flap female mold and the third split-flap female mold, and are used to position and connect the second split-flap female mold and the third split-flap female mold;

[0018] The first split female mold is respectively provided with a third connecting part and a fourth connecting part on the top of the two side walls in the second direction, the second split female mold is provided with a first connecting groove on the top of the two side walls in the first direction corresponding to the third connecting part, and the third split female mold is provided with a second connecting groove on the top of the two side walls in the first direction corresponding to the fourth connecting part.

[0019] According to the technical solution provided in the embodiment of the present application, it also includes a supporting structure, which includes two first pressurizing support members, and the two first pressurizing support members are respectively arranged on the side walls far away from each other of the two first split-flap female molds. The bottom of the first pressurizing support member has a second mounting portion, and the bottom plate is connected to the fixed mold for fastening the first split-flap female mold.

[0020] According to the technical solution provided in the embodiment of the present application, the support structure also includes four second pressurized support members, and the four second pressurized support members are respectively arranged in groups of two on the side walls away from the second petal female mold and the third petal female mold. The two second pressurized support members corresponding to the second petal female mold are respectively located at the two ends of the second pressurized support member in the first direction, and the mounting member passes through the second pressurized support member and the second petal female mold and extends into the first petal female mold; the two second pressurized support members corresponding to the third petal female mold are respectively located at the two ends of the third petal female mold in the first direction, and the mounting member passes through the second pressurized support member and the third petal female mold and extends into the first petal female mold.

[0021] According to the technical solution provided in the embodiment of the present application, it also includes an upper die, which is arranged on the top of the outer mold structure, and the mounting piece passes through the upper die and extends into the first petal female mold. The top of the second pressurizing support member has a third mounting portion, and the mounting piece passes through the third mounting portion and extends into the upper die.

[0022] According to the technical solution provided in the embodiment of the present application, glue overflow grooves are provided at the joints of the first split female mold, the second split female mold and the third split female mold.

[0023] To summarize, the present technical solution specifically discloses a molding mold for a display mounting table, wherein the molding mold includes an inner mold structure on which molding material is paved, and an outer mold structure. The outer mold structure is a frame structure, and its circumferential inner wall is paved with molding material for fitting the molding material of the inner mold structure. The outer mold structure also includes a bottom plate fixed mold, which is used to position and install the inner mold structure and the outer mold structure; through the inner mold structure and the outer mold structure, they can be positioned and installed on the bottom plate fixed mold respectively, and the molding material paved with the outer mold structure and the molding material paved with the inner mold structure can fit each other, and the final product is formed in one piece, and the molding process does not require mold transfer, the process operation is simple, and the labor cost and material cost are effectively reduced, the product molding accuracy is effectively guaranteed, and the product molding quality is also greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0025] Figure 1 The present invention is a schematic diagram of the molding die structure of a display mounting platform.

[0026] Figure 2 The present invention is a schematic diagram of the internal structure of a molding die for a display mounting station.

[0027] Figure 3 This is an exploded view of the inner mold structure.

[0028] Figure 4 Schematic diagram of the outer mold structure.

[0029] Figure 5 It is a side view of the outer mold structure.

[0030] Figure 6 This is an exploded view of the outer mold structure.

[0031] Figure 7 This is an exploded view of the external mold structure from another angle.

[0032] Figure 8 The figure is a step diagram of the molding method.

[0033] Numbers in the figure: 1. base pre-mold; 2. bracket pre-mold; 3. first petal female mold; 4. second petal female mold; 5. third petal female mold; 6. bottom plate fixing mold; 7. first mounting part; 8. filling piece; 9. connecting piece; 10. first connecting part; 11. second connecting part; 12. first guide rail; 13. second guide rail; 14. third connecting part; 15. fourth connecting part; 16. first connecting groove; 17. second connecting groove; 18. first pressurized support member; 19. second mounting part; 20. second pressurized support member; 21. upper pressure mold; 22. third mounting part; 23. fourth mounting part; 24. fifth mounting part; 25. sixth mounting part. DETAILED DESCRIPTION

[0034] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0035] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0036] Embodiment 1

[0037] Please refer to Figure 1 and Figure 2 As shown, a forming mold of a display mounting table includes a bottom plate fixing mold 6, the length direction of which extends along a first direction, and also includes an inner mold structure and an outer mold structure, the inner mold structure and the outer mold structure are both positioned and installed on the top of the bottom plate fixing mold 6, and the outer mold structure is a frame structure, which is arranged outside the inner mold structure; the first direction is Figure 1 The middle arrow indicates the direction;

[0038] The surface of the inner mold structure is paved with molding material, and the circumferential inner wall of the outer mold structure is paved with molding material, and fits with the molding material of the inner mold structure, so that the display mounting table can be finally formed; optionally, the molding material includes prepreg.

[0039] like Figure 2 and Figure 3 As shown, the inner mold structure includes a base pre-spreading mold 1, the length direction of which extends along the first direction, and the base pre-spreading mold 1 is arranged at the top center position of the bottom plate fixed mold 6. Specifically, a mounting hole is arranged at the top of the bottom plate fixed mold 6, and a mounting piece passes through the base pre-spreading mold 1 and extends into the mounting hole, so that the base pre-spreading mold 1 is positioned and installed at the top center position of the bottom plate fixed mold 6, thereby ensuring the installation accuracy of the base pre-spreading mold 1;

[0040] The inner mold structure also includes two bracket pre-paving molds 2, the bracket pre-paving molds 2 are C-shaped structures, the openings of the two bracket pre-paving molds 2 are opposite, and are symmetrically arranged at the two ends of the top of the base pre-paving mold 1. The bottom of the bracket pre-paving mold 2 has a first mounting portion 7, and the first mounting portion 7 is penetrated with a mounting hole. The top of the base pre-paving mold 1 is correspondingly provided with a mounting hole, and the mounting member penetrates the mounting hole of the bracket pre-paving mold 2 and extends into the mounting hole of the base pre-paving mold 1, thereby positioning and installing the bracket pre-paving mold 2;

[0041] Furthermore, the inner mold structure also includes a filling piece 8, and a mounting hole is provided through the filling piece 8. A mounting hole is correspondingly provided on the top of the base pre-laying mold 1. The mounting piece passes through the mounting hole of the filling piece 8 and extends into the mounting hole of the base pre-laying mold 1 to position and install the filling piece 8. The filling piece 8 is installed at the center of the top of the base pre-laying mold 1 to fill the gap between the two first mounting parts 7 at the top of the base pre-laying mold 1, and at the same time can ensure the installation accuracy of the two first mounting parts 7, thereby ensuring the installation accuracy of the two bracket pre-laying molds 2;

[0042] Furthermore, the inner mold structure also includes a connecting piece 9, which extends in the first direction in length, and has a second connecting portion 11 at both ends, and a mounting hole is penetrated through the second connecting portion 11, and a boss is provided in the middle of the connecting piece 9. The top of the bracket pre-laying mold 2 has a first connecting portion 10, which corresponds to the second connecting portion 11. The first connecting portion 10 is provided with a mounting hole, and the mounting hole of the second connecting portion 11 is extended to the mounting hole of the first connecting portion 10 through the mounting piece, thereby connecting the tops of the two bracket pre-laying molds 2 through the connecting piece 9 to enhance the structural strength, and the two side walls of the boss in the first direction respectively abut against the side walls of the tops of the two bracket pre-laying molds 2 that are close to each other, further ensuring the installation accuracy of the two bracket pre-laying molds 2.

[0043] like Figures 4 to 7 As shown, the outer mold structure includes two first split female molds 3, the two first split female molds 3 are symmetrically arranged, and are respectively located at two ends of the base pre-laying mold 1 in the first direction, and are respectively arranged close to the two bracket pre-laying molds 2;

[0044] The outer mold structure also includes a second split female mold 4 and a third split female mold 5, which are respectively located on both sides of the base pre-laying mold 1 in the second direction, wherein the two ends of the second split female mold 4 are respectively connected to the two first split female molds 3, and the two ends of the third split female mold 5 are respectively connected to the two first split female molds 3, thereby, the two first split female molds 3, the second split female mold 4 and the third split female mold 5 are connected to form a frame structure to wrap the inner mold structure, and the bottoms of the two first split female molds 3, the second split female mold 4 and the third split female mold 5 are all close to the side wall of the base pre-laying mold 1; the second direction is Figure 5 a middle horizontal direction, and a second direction perpendicular to the first direction;

[0045] Furthermore, a first guide track 12 and a second guide track 13 are respectively formed on two side walls of the first split female mold 3 that are away from each other in the second direction. The first guide track 12 and the second guide track 13 correspond to the second split female mold 4 and the third split female mold 5, respectively, and are used to match the second split female mold 4 and the third split female mold 5, so as to facilitate the installation of the second split female mold 4 and the third split female mold 5 and ensure the connection accuracy between the second split female mold 4 and the third split female mold 5 and the first split female mold 3;

[0046] Furthermore, the tops of the two side walls of the first flap female mold 3 which are away from each other in the second direction are respectively provided with a third connecting portion 14 and a fourth connecting portion 15, the tops of the two side walls of the second flap female mold 4 which are away from each other in the first direction are respectively provided with a first connecting groove 16 corresponding to the third connecting portion 14, the tops of the two side walls of the third flap female mold 5 which are away from each other in the first direction are respectively provided with a second connecting groove 17 corresponding to the fourth connecting portion 15, the third connecting portion 14 and the fourth connecting portion 15 are penetrated with mounting holes, the first connecting groove 16 and the second connecting groove 17 are both provided with mounting holes, and the mounting parts penetrate through the mounting holes and extend into the mounting holes, so as to connect the second flap female mold 4 and the third flap female mold 5 with the first flap female mold 3, and ensure the connection accuracy between the second flap female mold 4 and the third flap female mold 5 and the first flap female mold 3;

[0047] Furthermore, the joints of the first split female mold 3, the second split female mold 4 and the third split female mold 5 are all provided with glue overflow grooves to facilitate the discharge of gas and prevent material clamping during curing. The distance between the glue overflow groove and the edge of the final molded product is 0.5mm. Optionally, the glue overflow groove is a semicircular groove of R2.5.

[0048] It also includes a supporting structure for fastening the first split female mold 3, the second split female mold 4 and the third split female mold 5;

[0049] Specifically, the support structure includes two first pressurizing support members 18, which are respectively arranged on the side walls of the two first split-flap female molds 3 that are far away from each other. Correspondingly, the first pressurizing support member 18 has a fourth mounting portion 23, and a mounting hole is arranged through the fourth mounting portion 23. The first split-flap female mold 3 is provided with a mounting hole, and the mounting hole of the mounting member extending through the mounting hole of the fourth mounting portion 23 to the mounting hole of the first split-flap female mold 3 is used to install the first pressurizing support member 18 on the first split-flap female mold 3.

[0050] The first pressurizing support member 18 has a second mounting portion 19 at the bottom, and a mounting hole is provided through the second mounting portion 19. Correspondingly, a mounting hole is provided at the top of the bottom plate fixed mold 6. The mounting hole of the mounting member passing through the second mounting portion 19 extends into the mounting hole of the bottom plate fixed mold 6, so that the first pressurizing support member 18 is positioned and installed on the bottom plate fixed mold 6, thereby pressing the first split female mold 3 by the first pressurizing support member 18, ensuring the fastening and precision of the installation of the first split female mold 3;

[0051] Furthermore, the support structure further includes four second pressurizing support members 20, which are arranged in groups of two corresponding to the second split female mold 4 and the third split female mold 5, and are respectively located on the side walls of the second split female mold 4 and the third split female mold 5 that are away from each other;

[0052] The two second pressurizing support members 20 corresponding to the second flap female mold 4 are respectively located at the two ends of the side wall of the second flap female mold 4 away from the third flap female mold 5, the second pressurizing support member 20 is provided with a fifth mounting portion 24, the fifth mounting portion 24 is penetrated with a mounting hole, the two ends of the side wall of the second flap female mold 4 away from the third flap female mold 5 are penetrated with mounting holes, the side wall of the first flap female mold 3 close to the second flap female mold 4 is provided with mounting holes, the mounting member sequentially penetrates the mounting hole of the fifth mounting portion 24 and the mounting hole of the second flap female mold 4 and extends into the mounting hole of the first flap female mold 3, so that the second flap female mold 4 is connected and fastened to the first flap female mold 3;

[0053] The two second pressurizing support members 20 corresponding to the third petal female mold 5 are respectively located at the two ends of the side wall of the third petal female mold 5 away from the second petal female mold 4, and the two ends of the side wall of the third petal female mold 5 away from the second petal female mold 4 are penetrated with mounting holes, and the first petal female mold 3 is provided with mounting holes on the side wall close to the third petal female mold 5, and the mounting member sequentially penetrates the mounting hole of the fifth mounting portion 24 and the mounting hole of the third petal female mold 5 and extends into the mounting hole of the first petal female mold 3, so that the third petal female mold 5 is connected and fastened with the first petal female mold 3;

[0054] Furthermore, openings are provided on the second petal female mold 4 and the third petal female mold 5, and the opening direction is toward the side away from the bottom plate fixed mold 6. Sixth mounting parts 25 are provided on both sides of the openings, and mounting holes are penetrated on the sixth mounting part 25. Mounting holes are provided at both ends of the boss of the connecting member 9. The mounting member penetrates the mounting hole of the sixth mounting part 25 and extends into the mounting hole of the boss, thereby enabling the second petal female mold 4 and the third petal female mold 5 to be connected to the connecting member 9 to ensure a tight connection.

[0055] It also includes an upper die 21, which is arranged on the top of the outer die structure;

[0056] Specifically, mounting holes are arranged on the tops of the first petal female mold 3, the second petal female mold 4 and the third petal female mold 5, and the top of the second pressurizing support member 20 has a third mounting portion 22, and mounting holes are arranged through the third mounting portion 22. Correspondingly, mounting holes are arranged on the upper die 21 corresponding to the mounting holes on the tops of the first petal female mold 3, the second petal female mold 4 and the third petal female mold 5 and the mounting holes on the third mounting portion 22, and are connected by mounting parts, thereby enabling the upper die 21 to be pressed tightly against the top of the outer mold structure to ensure the installation accuracy of the outer mold structure.

[0057] The roughness of the contact surface of each component of the molding die is less than or equal to 0.8μm;

[0058] The contact surface roughness of each component of the molding die and the product is less than or equal to 0.8μm.

[0059] Embodiment 2

[0060] A molding method, which uses a molding die of a display mounting table proposed in embodiment 1, such as Figure 8 As shown, the molding method includes:

[0061] S01, calculate the first target size and the second target size of the required molding material and the target number of layers to be laid according to the sizes of the bracket pre-laying mold 2 and the base pre-laying mold 1, and calculate the third target size, the fourth target size and the fifth target size of the required molding material according to the sizes of the first split female mold 3, the second split female mold 4 and the third split female mold 5;

[0062] The molding material includes prepreg, and the size of the required prepreg is calculated according to the size of the bracket pre-mold 2 and the base pre-mold 1, wherein the size of the prepreg corresponding to the bracket pre-mold 2 is the first target size, and the size of the prepreg corresponding to the base pre-mold 1 is the second target size; and the target number of layers of prepreg required to be laid on the bracket pre-mold 2 and the base pre-mold 1 is calculated;

[0063] The required size of the prepreg is calculated according to the sizes of the first split female mold 3, the second split female mold 4 and the third split female mold 5, wherein the size of the prepreg corresponding to the first split female mold 3 is the third target size, the size of the prepreg corresponding to the second split female mold 4 is the fourth target size, and the size of the prepreg corresponding to the third split female mold 5 is the fifth target size.

[0064] S02, cutting the molding material according to the first target size, the second target size, the third target size, the fourth target size and the fifth target size;

[0065] S03, laying the molding materials cut into the first target size and the second target size on the bracket pre-laying mold 2 and the base pre-laying mold 1 until the target number of layers is reached, and laying the molding materials cut into the third target size, the fourth target size and the fifth target size one layer each on the first split female mold 3, the second split female mold 4 and the third split female mold 5;

[0066] The prepreg is cut according to the calculated first target size, second target size, third target size, fourth target size and fifth target size, and then the prepreg of the first target size is laid on the surface of the bracket pre-laying mold 2, and the prepreg of the second target size is laid on the surface of the base pre-laying mold 1, and they are laid in sequence until the prepreg on the bracket pre-laying mold 2 and the base pre-laying mold 1 reaches the target number of layers;

[0067] It should be noted that, because the bracket pre-laying mold 2 and the base pre-laying mold 1 are connected by a mounting part, the number of prepreg layers at the position where the bracket pre-laying mold 2 and the base pre-laying mold 1 are in contact is half of the target number of layers, and a structural adhesive film is laid on the contact surface to ensure the overall bonding strength of the two bracket pre-laying molds 2 and the base pre-laying mold 1, and vacuuming is performed during the laying process to reduce bubbles generated during the laying process and improve the quality;

[0068] The prepregs of the third target size, the fourth target size and the fifth target size are laid corresponding to the first petal female mold 3, the second petal female mold 4 and the third petal female mold 5 respectively, the number of laying layers is one layer, and the laying positions are the side walls of the first petal female mold 3, the second petal female mold 4 and the third petal female mold 5 close to the inner mold structure, and then the bracket pre-laying mold 2, the base pre-laying mold 1, the first petal female mold 3, the second petal female mold 4 and the third petal female mold 5 laid with the prepregs are placed in a vacuum bag for vacuum treatment, so that the prepregs can fit the bracket pre-laying mold 2, the base pre-laying mold 1, the first petal female mold 3, the second petal female mold 4 and the third petal female mold 5, and the air is exhausted;

[0069] S04, install the base pre-paving mold 1 at the top center of the bottom plate fixed mold 6 through the installation parts, then connect the bracket pre-paving mold 2 with the molding material and the base pre-paving mold 1 through the installation parts, and position and install the two bracket pre-paving molds 2 through the filling parts 8, and then connect the tops of the two bracket pre-paving molds 2 through the connecting parts 9;

[0070] The base pre-paving mold 1 paved with prepreg is installed at the top center position of the bottom plate fixed mold 6 through the mounting parts, and then the two bracket pre-paving molds 2 paved with prepreg are installed at the two ends of the top of the base pre-paving mold 1 through the mounting parts, so that the openings of the two bracket pre-paving molds 2 are opposite to each other, and the filling piece 8 is installed at the top center position of the base pre-paving mold 1 through the mounting parts, so that the filling piece 8 fills the gap between the first mounting parts 7 of the two bracket pre-paving molds 2, and the installation positions of the two bracket pre-paving molds 2 can be positioned, and then the connecting piece 9 is placed in the gap between the tops of the two bracket pre-paving molds 2, and the first connecting part 10 on the tops of the two bracket pre-paving molds 2 is connected to the second connecting parts at both ends of the connecting piece 9 through the mounting parts, so that the tops of the two bracket pre-paving molds 2 are connected together and assembled into an inner mold structure, which can ensure that the inner mold structure will not deform when subjected to pressure, increase the structural strength, and further ensure the installation accuracy and ensure the product molding quality;

[0071] S05, positioning the second split female mold 4 and the third split female mold 5 respectively through the first guide track 12 and the second guide track 13 of the first split female mold 3, so that the first split female mold 3, the second split female mold 4 and the third split female mold 5 with molding materials laid thereon are connected through the mounting parts to assemble into an outer mold structure;

[0072] The second flap female mold 4 is positioned and assembled through the first guide track 12 of the first flap female mold 3, and the third flap female mold 5 is positioned and assembled through the second guide track 13 of the first flap female mold 3, the third connecting parts 14 of the two first flap female molds 3 are correspondingly installed in the two first connecting grooves 16 of the second flap female mold 4, and extend to the mounting holes of the first connecting grooves 16 through the mounting parts penetrating the mounting holes of the third connecting parts 14, and the fourth connecting parts 15 of the two first flap female molds 3 are correspondingly installed in the two second connecting grooves 17 of the third flap female mold 5, and extend to the mounting holes of the second connecting grooves 17 through the mounting parts penetrating the mounting holes of the fourth connecting parts 15, so that the two first flap female molds 3, the second flap female mold 4 and the third flap female mold 5 paved with prepreg can be assembled into an outer mold structure;

[0073] S06, using the first pressurizing support member 18 and the second pressurizing support member 20 to respectively position and install the first split female mold 3, the second split female mold 4 and the third split female mold 5, and connecting the upper pressing mold 21 to the top of the first split female mold 3 through the mounting member;

[0074] The outer mold structure is placed on the top of the bottom plate fixed mold 6 so that the outer mold structure is located outside the inner mold structure, and the mounting hole of the fourth mounting portion 23 of the first pressurizing support member 18 is extended through the mounting member to the mounting hole of the first split female mold 3, so that the two first pressurizing support members 18 are respectively installed on the side walls of the two first split female molds 3 that are away from each other, and the mounting hole of the second mounting portion 19 of the first pressurizing support member 18 is extended through the mounting member to the mounting hole at the top of the bottom plate fixed mold 6, so that the two first pressurizing support members 18 are positioned and connected with the bottom plate fixed mold 6;

[0075] The four second pressurizing support members 20 are arranged in pairs and correspond to the second split female mold 4 and the third split female mold 5, respectively. The two second pressurizing support members 20 corresponding to the second split female mold 4 are respectively located at two ends of the side wall of the second split female mold 4 away from the inner mold structure, and the two second pressurizing support members 20 corresponding to the third split female mold 5 are respectively located at two ends of the side wall of the third split female mold 5 away from the inner mold structure.

[0076] The mounting member sequentially penetrates the mounting hole of the fifth mounting portion 24 of the second pressure support member 20 corresponding to the second split female mold 4 and the mounting holes at both ends of the second split female mold 4 and extends into the mounting hole of the first split female mold 3, so that the second split female mold 4 and the first split female mold 3 are connected and fastened;

[0077] The mounting member sequentially penetrates the mounting hole of the fifth mounting portion 24 of the second pressure support member 20 corresponding to the third split female mold 5 and the mounting holes at both ends of the third split female mold 5 and extends into the mounting hole of the first split female mold 3, so that the third split female mold 5 and the first split female mold 3 are connected and fastened;

[0078] Furthermore, the mounting member respectively penetrates the mounting holes of the sixth mounting portion 25 on both sides of the openings of the second split female mold 4 and the third split female mold 5 and extends into the mounting holes at both ends of the boss of the connecting member 9, thereby connecting the second split female mold 4 and the third split female mold 5 to the connecting member 9 respectively, ensuring connection accuracy and connection tightness;

[0079] Further, the upper die 21 is placed on the top of the outer mold structure, and the upper die 21 is connected to the tops of the two first split female molds 3, the second split female mold 4, and the third split female mold 5 through the mounting parts, and the upper die 21 is connected to the third mounting part 22 on the top of the second pressurizing support member 20 through the mounting parts, so that the assembly of the molding mold is completed, and the upper die 21 can press the components of the outer mold structure, ensuring the installation accuracy and tightness;

[0080] S07, put the connected molding die into an oven, control the temperature to 60 degrees Celsius and bake for 2-3 hours, after the molding material is baked soft, take out the molding die, tighten all the mounting parts for the second time, put it into the oven again after the second tightening, control the temperature to 140 degrees Celsius until it is formed;

[0081] Put the assembled molding die into the oven, control the oven temperature to 60 degrees Celsius, bake the molding die for 2-3 hours, open the oven to soften the prepreg, take out the molding die, tighten all the mounting parts with tools, tighten all the mounting parts for the second time, put the molding die into the oven again after the second tightening, control the oven temperature to 140 degrees Celsius until the product is formed;

[0082] After the product is formed, demoulding is carried out when the temperature drops to 30-50℃.

[0083] Working principle: According to the sizes of the bracket pre-laying mold 2, the base pre-laying mold 1, the first split female mold 3, the second split female mold 4 and the third split female mold 5, the first target size, the second target size, the third target size, the fourth target size and the fifth target size of the prepreg required for each of them are calculated, and the target number of layers of prepreg required to be laid on the bracket pre-laying mold 2 and the base pre-laying mold 1 is calculated, and then the prepreg is cut, and then the bracket pre-laying mold 2, the base pre-laying mold 1, the first split female mold 3, the second split female mold 4 and the third split female mold 5 are laid with prepreg, and the bracket pre-laying mold 2 and the base pre-laying mold 1 ... The number of prepreg layers at the position where the mold 1 contacts is half of the target number of layers, so that the overall thickness of the product after molding can be the same, and then a layer of prepreg is laid on the first split female mold 3, the second split female mold 4 and the third split female mold 5 respectively, and the laid bracket pre-laying mold 2, the base pre-laying mold 1, the first split female mold 3, the second split female mold 4 and the third split female mold 5 are all placed in a vacuum bag for vacuum treatment, so that the prepreg can be tightly attached to the bracket pre-laying mold 2, the base pre-laying mold 1, the first split female mold 3, the second split female mold 4 and the third split female mold 5, and the air is exhausted;

[0084] Afterwards, the inner mold structure is assembled by the mounting parts, and the inner mold structure is mounted on the top of the bottom plate fixed mold 6 through the mounting parts, and then the outer mold structure is assembled, and the outer mold structure is mounted on the top of the bottom plate fixed mold 6 through the supporting structure, and finally the upper die 21 is installed through the mounting parts, so that the assembly of the molding mold is completed, and the supporting structure and the upper die 21 can press the outer mold structure tightly, so that the components of the outer mold structure are tightly connected, and the installation accuracy is guaranteed;

[0085] Put the assembled molding mold into the oven, control the temperature to 60 degrees Celsius and bake for 2-3 hours to soften the prepreg, take out the molding mold, tighten all the installation parts for the second time, put the molding mold into the oven again, control the temperature to 140 degrees Celsius until molding. During the thermal curing molding process, the overflow groove can avoid the situation that the mold is not in place due to the clamping of the product, and it is convenient to discharge the gas during the curing process; demolding is carried out when the temperature drops to 30-50℃ after molding;

[0086] The components of the inner mold structure and the outer mold structure are designed separately, and prepreg is laid on each component before assembly. This makes the molding process unnecessary to transfer the mold, and the process operation is simple, achieving the effect of one-piece molding, increasing product reliability, and using composite materials to reduce product weight. The mold has high reliability and can be used for a long time, effectively reducing labor costs and material costs. In addition, the dimensional accuracy of each component of the molding mold is reliably guaranteed, and the molding quality of the product is also greatly improved.

[0087] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A molding die for a display mounting platform, characterized in that: include: An inner mold structure, on which molding material is laid; An outer mold structure, the outer mold structure is a frame structure, which is arranged outside the inner mold structure, and the circumferential inner wall of the outer mold structure is paved with molding material, and the molding material of the outer mold structure is used to fit the molding material of the inner mold structure; The bottom plate fixed mold (6) has a length direction extending along a first direction, and the inner mold structure and the outer mold structure are both positioned and installed on the top of the bottom plate fixed mold (6).

2. The forming mold of a display mounting platform according to claim 1, characterized in that: The inner mold structure comprises a base pre-spreading mold (1), the length direction of which extends along the first direction, the base pre-spreading mold (1) is arranged at the top center position of the bottom plate fixed mold (6), and the inner mold structure also comprises two bracket pre-spreading molds (2), the bracket pre-spreading molds (2) are C-shaped structures, the two bracket pre-spreading molds (2) have openings facing each other and are symmetrically arranged on the top of the bottom plate fixed mold (6), and are respectively located at two ends of the top of the bottom plate fixed mold (6), and the bottom of the bracket pre-spreading mold (2) has a first mounting portion (7), and the first mounting portion (7) is positioned and installed on the top of the bottom plate fixed mold (6).

3. The forming mold of a display mounting platform according to claim 2, characterized in that: The inner mold structure further comprises a filling piece (8) and a connecting piece (9), wherein the filling piece (8) is arranged at the top center position of the base pre-mould (1) and is used to fill the gap between the two first mounting parts (7) and ensure the positioning and installation of the two bracket pre-moulds (2); The connecting member (9) is used to connect the tops of the two stent pre-moulds (2), the tops of the stent pre-moulds (2) having a first connecting portion (10), and second connecting portions (11) are provided at both ends of the connecting member (9), and the first connecting portion (10) and the second connecting portion (11) are fixedly connected.

4. The forming mold of a display mounting platform according to claim 3, characterized in that: The outer mold structure comprises two first split female molds (3), the two first split female molds (3) are both positioned and installed on the top of the bottom plate fixed mold (6), and are symmetrically arranged, and the two first split female molds (3) are respectively located at two ends of the base pre-laying mold (1) in the first direction; The outer mold structure also includes a second split female mold (4) and a third split female mold (5), the second split female mold (4) and the third split female mold (5) are symmetrically arranged on the top of the bottom plate fixed mold (6), and are respectively located on both sides of the base pre-laying mold (1) in the second direction, and both ends of the second split female mold (4) and the third split female mold (5) are connected to the first split female mold (3); the first direction is perpendicular to the second direction.

5. The forming mold of a display mounting platform according to claim 4, characterized in that: The two side walls of the first split female mold (3) in the second direction respectively form a first guide track (12) and a second guide track (13), which respectively fit the second split female mold (4) and the third split female mold (5) and are used to position and connect the second split female mold (4) and the third split female mold (5); The first split female mold (3) is respectively provided with a third connecting part (14) and a fourth connecting part (15) at the top of the two side walls in the second direction, the second split female mold (4) is provided with a first connecting groove (16) at the top of the two side walls in the first direction corresponding to the third connecting part (14), and the third split female mold (5) is provided with a second connecting groove (17) at the top of the two side walls in the first direction corresponding to the fourth connecting part (15).

6. The forming mold of a display mounting platform according to claim 5, characterized in that: It also includes a supporting structure, which includes two first pressurizing support members (18), and the two first pressurizing support members (18) are respectively arranged on the side walls of the two first split-flap female molds (3) that are far away from each other. The bottom of the first pressurizing support member (18) has a second mounting portion (19), which is connected to the bottom plate fixing mold (6) for fastening the first split-flap female mold (3).

7. The forming mold of a display mounting platform according to claim 6, characterized in that: The support structure also includes four second pressurized support members (20), and the four second pressurized support members (20) are arranged in groups of two on the side walls away from the second petal female mold (4) and the third petal female mold (5). The two second pressurized support members (20) corresponding to the second petal female mold (4) are respectively located at the two ends of the second pressurized support member (20) in the first direction, and the mounting member passes through the second pressurized support member (20) and the second petal female mold (4) and extends into the first petal female mold (3); the two second pressurized support members (20) corresponding to the third petal female mold (5) are respectively located at the two ends of the third petal female mold (5) in the first direction, and the mounting member passes through the second pressurized support member (20) and the third petal female mold (5) and extends into the first petal female mold (3).

8. The forming mold of a display mounting platform according to claim 7, characterized in that: It also includes an upper die (21) which is arranged on the top of the outer mold structure, and a mounting piece passes through the upper die (21) and extends into the first split female mold (3), and the top of the second pressurizing support member (20) has a third mounting portion (22), and the mounting piece passes through the third mounting portion (22) and extends into the upper die (21).

9. The forming mold of a display mounting platform according to claim 8, characterized in that: The joints of the first split female mold (3), the second split female mold (4) and the third split female mold (5) are all provided with glue overflow grooves.

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