Conformally adjustable mold for resin cast, manufacturing method and use method for mold

Abstract

The present invention relates to the technical field of resin cast sample manufacturing, and in particular to a conformally adjustable mold for a resin cast, and a manufacturing method and use method for the mold. The conformally adjustable mold for a resin cast comprises a conformal inner mold; a metal surrounding frame having an open upper end is arranged on the periphery of the conformal inner mold; two glass plates are bonded to two opposite sides of the metal surrounding frame; clamping assemblies are distributed on the periphery of the two glass plates at intervals; the clamping assemblies clamp the two glass plates together; the mold further comprises a flow guide tube, and the flow guide tube is inserted into a forming cavity of the conformal inner mold from the gap between the upper ends of the two glass plates. The mold for manufacturing a resin cast sample in the present invention has a simple structure and is convenient to use, and the size of the conformal inner mold can be adjusted to adapt to sample types of different specifications. In the present invention, conventional steel molds, silicone molds, etc., are abandoned, and plate glass and a polytetrafluoroethylene conformal inner mold are used to form a casting cavity; thus, it is not easy to generate bubbles and the standard conformity of samples can be greatly improved.

Description

Shape-adjustable forming die for resin casting body, preparation method and use method thereof Technical Field

[0001] The present invention relates to the field of composite material forming mold manufacturing, in particular to a form-adjustable forming mold for a resin casting body, a preparation method and a use method thereof. Background Art

[0002] With the advancement of technology, composite materials have rapidly developed and are widely used in various products. Within the composite materials industry, resin is one of the most common raw materials and an essential component in the production of composite products. Its performance is crucial to the quality of composite products, making resin performance testing essential. Currently, most commonly used molds for resin castings are made of steel or silicone, which presents a range of issues, including prone to air bubbles, difficulty in demolding, and uneven casting surfaces.

[0003] Therefore, in order to solve the above problems, the present invention urgently needs to provide a form-adjustable molding die for a resin casting body, a preparation method and a use method thereof.

[0004] Summary of the Invention

[0005] The object of the present invention is to provide a method for preparing a form-adjustable molding die for a resin casting body, comprising the following steps:

[0006] Prepare a conformable inner mold according to the sample size, and prepare a metal frame with an open top and surrounding the conformable inner mold, wherein the thickness of the metal frame is equal to that of the conformable inner mold;

[0007] Prepare two glass plates sandwiched by a metal frame;

[0008] Glue the bottom of the inner mold to the metal frame, and use two glass plates to attach to the opposite sides of the metal frame, and clamp the two glass plates together with a clamping assembly;

[0009] Insert the guide tube into the forming cavity of the conformable inner mold from the gap between the upper ends of the two glass plates to obtain a forming mold.

[0010] Preferably, the material of the conformable inner mold is polytetrafluoroethylene.

[0011] Preferably, before the two glass plates are clamped with the metal frame, the inner surfaces of the two glass plates are coated with a release agent.

[0012] Preferably, the two glass plates and the metal frame are bonded together by adhesive.

[0013] Preferably, the guide tube is made of glass or soft plastic.

[0014] Preferably, the clamping component is a C-clip, and the C-clip model can be DL-G203.

[0015] Preferably, the clamping components are distributed on both side edges and the bottom edge of the two glass plates, and two clamping components are arranged at intervals on each side edge and bottom edge.

[0016] The present invention also provides a conformable adjustable forming mold obtained by a method for preparing a conformable adjustable forming mold for a resin casting body, comprising a conformable inner mold, a metal frame with an open upper end provided on the periphery of the conformable inner mold, two glass plates bonded to opposite sides of the metal frame, and clamping components spaced apart on the outer circles of the two glass plates; the clamping components clamp the two glass plates together; and further comprising a guide tube, which is inserted into the molding cavity of the conformable inner mold from the gap between the upper ends of the two glass plates.

[0017] Preferably, the clamping component is a C-clip, and the C-clip model can be DL-G203.

[0018] The present invention also provides a method for using a conformable and adjustable forming mold for a resin casting body, comprising the following steps: preparing a conformable inner mold according to the sample size, and preparing a metal frame with an open upper end and surrounding the conformable inner mold;

[0019] Prepare two glass plates sandwiched by a metal frame;

[0020] Glue the bottom of the inner mold to the metal frame, and use two glass plates to attach to the opposite sides of the metal frame, and clamp the two glass plates together with a clamping assembly;

[0021] Insert the guide tube from the gap between the upper ends of the two glass plates into the interior of the conformable inner mold to obtain a forming mold;

[0022] Pour the resin liquid into the inner film cavity of the inner mold through the guide tube. After the inner film cavity is filled, remove the guide tube.

[0023] After heating and curing, the temperature is lowered, and the glass plate, metal frame and inner mold are removed to obtain the resin casting body;

[0024] Perform performance testing on the resin casting body.

[0025] The present invention provides a form-adjustable molding die for a resin casting, and its preparation method and use method, which have the following improvements over the prior art:

[0026] 1. The present invention provides a conformable, adjustable molding die for resin casting, a preparation method, and a method for using the same. The die uses flat glass and a conformable inner mold to form a casting cavity, and casting is performed through a guide tube. The die has a simple structure and is easy to use. The die can be adjusted to accommodate specimens of varying specifications.

[0027] 2. The present invention abandons traditional steel molds, silicone molds, etc., and adopts flat glass as the mold plate and polytetrafluoroethylene as the conformable inner mold, so that the conformable adjustable molding mold and sample preparation method of the present invention are not easy to generate bubbles, the sample is smooth and flat, and demolding is simple, making the sample more standardized and greatly improving the pass rate of the sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] FIG1 is a schematic diagram (stereoscopic view) of a shape-adjustable forming die for a resin casting body according to the present invention;

[0030] FIG2 is a schematic diagram (stereoscopic view) of a conformable inner mold of a conformable and adjustable molding die for a resin casting body according to the present invention;

[0031] FIG3 is a schematic diagram (stereoscopic view) of a resin casting body obtained after molding using the shape-adjustable molding die of the present invention.

[0032] Description of reference numerals:

[0033] 1. Glass plate; 2. Conformable inner mold; 3. Metal frame; 4. Clamping assembly; 5. Draft tube; 6. Molding cavity. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "liquid level," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0037] As shown in FIG1 and FIG2 , this embodiment provides a method for preparing a conformable and adjustable molding die for a resin casting body, comprising the following steps:

[0038] 101) Prepare a conformable inner mold 2 according to the sample size, and prepare a metal frame 3 with an open top and surrounding the conformable inner mold 2, wherein the thickness of the metal frame 3 is equal to that of the conformable inner mold 2;

[0039] 102) Preparing two glass plates 1 to be clamped by a metal frame 3;

[0040] 103) Paste the bottom of the inner mold 2 onto the metal frame 3, attach two glass plates 1 to opposite sides of the metal frame 3, and clamp the two glass plates 1 together using the clamping assembly 4;

[0041] 104) Insert the guide tube 5 into the forming cavity of the conformable inner mold 2 through the gap between the upper ends of the two glass plates 1 to obtain a forming mold.

[0042] The method for preparing a conformable and adjustable forming mold for a resin casting body described in the present invention can prepare different conformable inner molds 2, metal frames 3 matching the conformable inner mold 2, and two glass plates matching the metal frames 3 according to product requirements, so as to quickly and conveniently obtain resin casting bodies of different shapes. The conformable and adjustable forming mold has a simple structure, is easy to process, and helps to improve work efficiency.

[0043] The material of the inner mold 2 of this embodiment is polytetrafluoroethylene.

[0044] The method for preparing a conformable and adjustable molding die for a resin casting body of the present invention uses polytetrafluoroethylene to solve a series of problems caused by commonly used steel molds and silicone molds, such as easy generation of bubbles, difficulty in demoulding, and uneven surface of the casting body.

[0045] As shown in FIG1 , in this embodiment, before the two glass plates 1 are clamped with the metal frame 3 , the inner surfaces of the two glass plates 1 are coated with a release agent.

[0046] In the method for preparing the shape-adjustable forming mold for a resin casting body of the present invention, the release agent makes it easier to remove the two glass plates 1 from the shape-adjustable forming mold after the resin is cured to obtain the resin casting body.

[0047] As shown in FIG1 , in this embodiment, the two glass plates 1 and the metal frame 3 are bonded together by adhesive.

[0048] The method for preparing a conformable and adjustable molding die for a resin casting body of the present invention can bond the metal frame 3 and the two glass plates 1 together by adhesive to form a sealed cavity, so that the resin liquid is difficult to flow out through the gap between the metal frame 3 and the two glass plates 1 after being injected and before being solidified and formed.

[0049] As shown in FIG1 , the guide tube 5 in this embodiment is made of glass or soft plastic.

[0050] In the method for preparing the conformable and adjustable molding die for the resin casting body of the present invention, the glass or soft plastic guide tube 5 can penetrate into the conformable inner mold cavity to guide the resin liquid, thereby solving the problem of bubbles easily generated during resin curing and molding.

[0051] As shown in FIG1 , the clamping assembly 4 of this embodiment is a C-type clamp. The C-type clamp model may be DL-G203, which is common knowledge in the art and will not be described in detail here.

[0052] The method for preparing the form-adjustable molding die for the resin casting body of the present invention can fix the metal frame 3 and the two glass plates 1 by means of a C-shaped clamp, which plays a role in maintaining pressure during the resin curing and preventing the glue from overflowing.

[0053] As shown in FIG1 , the clamping components 4 of this embodiment are distributed on both side edges and the bottom edge of the two glass plates 1 , and two clamping components 4 are arranged at intervals on each side edge and bottom edge.

[0054] In the method for preparing the form-adjustable molding die for the resin casting body of the present invention, the C-shaped clamps are evenly distributed on the three sides of the two glass plates 1, so that the two glass plates 1 are subjected to uniform pressure from all sides, thereby avoiding uneven force deformation during resin solidification.

[0055] The present invention also provides a conformable adjustable forming mold obtained by a method for preparing a conformable adjustable forming mold for a resin casting body, comprising a conformable inner mold 2, a metal frame 3 with an open upper end provided on the periphery of the conformable inner mold 2, two glass plates 1 bonded on opposite sides of the metal frame 3, and clamping components 4 spaced apart on the outer circles of the two glass plates 1; the clamping components 4 clamp the two glass plates 1 together; and further comprising a guide tube 5, which is inserted from the upper end gap of the two glass plates 1 into the molding cavity of the conformable inner mold 2.

[0056] The conformable adjustable molding mold obtained by the preparation method of the conformable adjustable molding mold for the resin casting body described in the present invention has a simple structure and is easy to use, which shortens the time required to obtain the resin casting body; in addition, the conformable adjustable molding mold for the resin casting body described in the present invention can adapt to different specifications of sample types by adjusting the size of the conformable inner mold to obtain resin casting bodies of different specifications.

[0057] As shown in FIG. 1 , the clamping assembly 4 of this embodiment is a C-clip, and the C-clip model can be DL-G203.

[0058] The form-adjustable molding die obtained by the method for preparing the form-adjustable molding die for the resin casting body of the present invention can fix the metal frame 3 and the two glass plates 1 through a C-shaped clamp, which plays a role in maintaining pressure during resin curing and preventing the resin from being deformed by heat during curing.

[0059] The present invention also provides a method for using a shape-adjustable molding die for a resin casting body, comprising the following steps:

[0060] 201) preparing a conformable inner mold 2 according to the sample size, and preparing a metal frame 3 with an open top and surrounding the conformable inner mold 2;

[0061] 202) preparing two glass plates 1 clamped by a metal frame 3;

[0062] 203) Paste the bottom of the inner mold 2 onto the metal frame 3, and attach two glass plates 1 to opposite sides of the metal frame 3, and clamp the two glass plates 1 together using the clamping assembly 4;

[0063] 204) Inserting the guide tube 5 into the inner mold cavity of the conformable inner mold 2 through the gap between the upper ends of the two glass plates 1 to obtain a forming mold;

[0064] 204) pouring the resin liquid into the inner film cavity of the inner mold 2 through the guide tube 5. After the inner film cavity is filled, remove the guide tube;

[0065] 205) After heating and curing, the temperature is lowered, and the glass plate 1, the metal frame 3 and the inner mold 2 are removed to obtain a resin casting body, as shown in FIG3 ;

[0066] 206) Perform performance testing on the resin casting body.

[0067] The method for using the conformable adjustable forming mold for a resin casting body described in the present invention has a simple mold structure and is easy to use, thereby shortening the time required to obtain a resin casting body; in addition, the conformable adjustable forming mold for a resin casting body described in the present invention can adapt to different specifications of sample types by adjusting the size of the conformable inner mold to obtain resin casting bodies of different specifications; before using the conformable adjustable forming mold for a resin casting body described in the present invention, the cast resin needs to be placed in a vacuum drying oven for vacuum heating in advance to better expel bubbles, and poured into the prepared mold through a guide tube at a suitable temperature. After the pouring is completed, the mold is transferred to an oven for curing.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for preparing a conformable and adjustable molding die for a resin casting body, characterized in that: The steps include: A conformable inner mold (2) is prepared according to the size of the sample, and a metal frame (3) with an open upper end and surrounding the conformable inner mold (2) is prepared, wherein the thickness of the metal frame (3) is equal to that of the conformable inner mold (2); Prepare two glass plates (1) clamped by a metal frame (3); The bottom of the free-form inner mold (2) is pasted on the metal frame (3), two glass plates (1) are respectively pasted on opposite sides of the metal frame (3), and the two glass plates (1) are clamped by a clamping assembly (4); The guide tube (5) is inserted into the molding cavity (6) of the conformable inner mold (2) from the gap between the upper ends of the two glass plates (1) to obtain a molding mold.

2. The method for preparing a shape-adjustable molding die for a resin casting body according to claim 1, characterized in that: The material of the conformable inner mold (2) is polytetrafluoroethylene.

3. The method for preparing a shape-adjustable molding die for a resin casting body according to claim 2, characterized in that: Before the two glass plates (1) are clamped with the metal surrounding frame (3), the inner plate surfaces of the two glass plates (1) are coated with a release agent.

4. The method for preparing a shape-adjustable molding die for a resin casting body according to claim 3, characterized in that: The connection between the two glass plates (1) and the metal surrounding frame (3) is bonded by adhesive.

5. The method for preparing a shape-adjustable molding die for a resin casting body according to claim 4, characterized in that: The guide tube (5) is made of glass or soft plastic.

6. The method for preparing a shape-adjustable molding die for a resin casting body according to claim 5, characterized in that: The clamping assembly (4) is a C-type clamp.

7. The method for preparing a shape-adjustable molding die for a resin casting body according to claim 6, characterized in that: The clamping components (4) are distributed on both side edges and the bottom edge of the two glass plates (1), and two clamping components (4) are arranged at intervals on each side edge and the bottom edge.

8. A conformable adjustable molding die obtained by the method for preparing a conformable adjustable molding die for a resin casting body according to any one of claims 1 to 7, characterized in that: The invention comprises a conformable inner mold (2), the outer periphery of the conformable inner mold (2) is provided with a metal frame (3) with an upper end opening, two glass plates (1) are bonded on opposite sides of the metal frame (3), and the outer circles of the two glass plates (1) are provided with clamping components (4) at intervals; the clamping components (4) clamp the two glass plates (1) together; and the invention also comprises a flow guide tube (5), which is inserted into the molding cavity of the conformable inner mold (2) from the gap between the upper ends of the two glass plates (1).

9. The shape-adjustable forming die for a resin casting body according to claim 8, characterized in that: The clamping assembly (4) is a C-type clamp.

10. A method for using the shape-adjustable molding die for a resin casting body according to claim 8 or 9, characterized in that: A conformable inner mold (2) is prepared according to the size of the sample, and a metal frame (3) with an open upper end and surrounding the conformable inner mold (2) is prepared; Prepare two glass plates (1) clamped by a metal frame (3); The bottom of the free-form inner mold (2) is pasted on the metal frame (3), two glass plates (1) are respectively pasted on opposite sides of the metal frame (3), and the two glass plates (1) are clamped by a clamping assembly (4); Inserting the guide tube (5) from the gap between the upper ends of the two glass plates (1) into the interior of the conformable inner mold (2) to obtain a molding mold; The resin liquid is poured into the inner film cavity of the conformable inner mold (2) through the guide tube (5), and after the inner film cavity is filled, the guide tube is taken out; After heating and curing, the temperature is lowered, and the glass plate (1), the metal surrounding frame (3) and the mold-free inner mold (2) are removed to obtain a resin casting body; and the performance of the resin casting body is tested.

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