Epoxy resin sample mold convenient for manual demolding

Abstract

The epoxy resin sample mold comprises a mold body, the mold body comprises a bottom plate and a side plate which are integrally formed, the side plate is located on the upper surface of the bottom plate, and an area defined by the side plate and the inner side of the bottom plate is a sample pouring space; a positioning hole longitudinally penetrates through the bottom plate; a demolding plate is movably arranged at the bottom of the sample pouring space of the mold main body; a positioning block matched with the positioning hole is mounted on the lower surface of the demolding plate; and the thickness of the demolding plate is equal to the depth of the sample pouring space minus the thickness of the sample. The demoulding plate is pre-buried before the sample is poured, so that the sample can be conveniently demoulded from the mould main body through the demoulding plate after the sample is formed, the structure is simple, the operation is convenient, and the test efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sample curing and molding, in particular to an epoxy resin sample mold which is convenient for manual demoulding. Background Art

[0002] At present, the epoxy resin-based composite material specimens used for mechanical property research are made of high-strength epoxy resin and various high-strength materials through mixing, pouring, exhausting, curing and other processes, among which the epoxy resin plays the role of filling molding and strength support. The specimen must meet the requirements of epoxy glue pouring molding and easy demoulding.

[0003] The epoxy resin specimens used for mechanical property research can usually be molded using traditional metal molds, plastic / nylon molds and other common molding mold materials. Plastic molds are widely used, such as polytetrafluoroethylene molds. Due to the high hardness of the mold, manual demoulding is difficult; and for plastic molds with lower hardness, the molds are easily deformed, resulting in lower molding accuracy.

[0004] Although there are molds that are easy to demold in the current market, their designs are relatively complex and their manufacturing costs are high. They are mostly used for high-precision, large-scale mass production and are difficult to apply to the production of a small number of samples in the laboratory. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an epoxy resin sample mold that is easy to demould manually, so that the sample can be removed from the mold body through the demoulding plate after the sample is formed. The structure is simple, the operation is convenient, and the test efficiency is improved. It is especially suitable for the preparation of a small number of samples in the laboratory.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an epoxy resin sample mold which is easy to demold manually, including a mold main body, the mold main body includes an integrally formed bottom plate and side plates, the side plates are located on the upper surface of the bottom plate, and the area enclosed by the side plates and the inner side of the bottom plate is the sample casting space; a positioning hole is provided longitudinally through the bottom plate; a stripping plate is movably provided at the bottom of the sample casting space of the mold main body, and a positioning block matching the positioning hole is installed on the lower surface of the stripping plate; the thickness of the stripping plate is equal to the depth of the sample casting space minus the thickness of the sample.

[0007] Preferably, the inner side surface of the side plate is a vertical surface; and the shape of the stripping plate is the same as the cross-section of the sample casting space.

[0008] Preferably, there are at least two positioning holes, and the positioning holes are symmetrically arranged on the bottom plate.

[0009] Preferably, the structure also includes a pushing device for pushing the positioning block upward from the positioning hole.

[0010] Preferably, the pushing device includes pushing blocks corresponding one to one with the positioning holes.

[0011] Preferably, the pushing blocks are mounted together on a flat plate.

[0012] Preferably, the pushing device includes pushing blocks corresponding to the positioning holes one by one, the bottom of the pushing block is connected to a screw rod through a straight-thrust bearing, the tail end of the screw rod is connected to a turntable, and the inner wall of the positioning hole is an internal thread that matches the screw rod thread.

[0013] The beneficial effects of the above technical solution are as follows: the utility model embeds the stripping plate before casting the sample, which is convenient for removing the sample from the mold body through the stripping plate after the sample is formed. The structure is simple, the operation is convenient, and the test efficiency is improved. The pushing device can enter the mold body through the positioning hole, push the stripping plate upward, and complete the sample demoulding work. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0015] Figure 1 It is a cross-sectional view of the first embodiment of the utility model.

[0016] Figure 2 It is a cross-sectional view of a second embodiment of the present utility model.

[0017] In the figure: 1, mold body 2, bottom plate 3, side plate 4, sample casting space 5, positioning hole 6, stripper plate 7, positioning block 8, push block 9, flat plate 10, direct push bearing 11, screw 12, turntable. DETAILED DESCRIPTION

[0018] Also see the attached Figure 1-2 The structure of the utility model includes a mold body 1, which includes an integrally formed bottom plate 2 and side plates 3, the side plates 3 are located on the upper surface of the bottom plate 2, and the area enclosed by the side plates 3 and the inner side of the bottom plate 2 is a sample casting space 4; a positioning hole 5 is provided longitudinally through the bottom plate 2; a stripper plate 6 is movably provided at the bottom of the sample casting space 4 of the mold body 1, and a positioning block 7 matching the positioning hole 5 is installed on the lower surface of the stripper plate 6; the thickness of the stripper plate 6 is equal to the depth of the sample casting space 4 minus the thickness of the sample.

[0019] The inner side surface of the side plate 3 is a vertical surface; the shape of the stripping plate 6 is the same as the cross section of the sample casting space 4.

[0020] There are at least two positioning holes 5 , and the positioning holes 5 are symmetrically arranged on the bottom plate 2 .

[0021] The structure also includes a pushing device for pushing the positioning block 7 upward from the positioning hole 5.

[0022] See separately Figure 1 In the first embodiment shown, the pushing device in this embodiment includes pushing blocks 8 corresponding to the positioning holes 5. The pushing blocks 8 are mounted together on a flat plate 9. The flat plate 9 can keep multiple pushing blocks 8 from bottom to top synchronously pushed into the positioning holes 5 to prevent the stripping plate 6 from deflecting.

[0023] See separately Figure 2 In the second embodiment shown, the pushing device in this embodiment includes a pushing block 8 corresponding to the positioning hole 5 one by one, the bottom of the pushing block 8 is connected to a screw 11 through a direct thrust bearing 10, the tail end of the screw 11 is connected to the turntable 11, and the inner wall of the positioning hole 5 is an internal thread that matches the thread of the screw 11. The screw 11 pushes the pushing block 8 through the thread transmission force, and then transmits the force to the stripping plate 6. The thread transmission force is more stable and labor-saving, which improves the controllability of the demoulding process.

[0024] The working principle of the utility model is: first, the stripping plate 6 is placed in the mold body 1, the positioning block 7 is embedded in the positioning hole 5, and the sample is cast. After the sample is formed, the pushing block 8 is pushed in from the bottom of the positioning hole 5. The pushing block 8 can push the positioning block 7, the stripping plate 6 and the sample out of the mold body 1 together to complete the demoulding work.

[0025] The above description is only proposed as an implementable technical solution of the present invention, and is not intended to be a single limitation on the technical solution itself.

Claims

1. An epoxy resin sample mold that is easy to demould manually, comprising a mold body, characterized in that: The mold body includes an integrally formed bottom plate and side plates, the side plates are located on the upper surface of the bottom plate, and the area enclosed by the side plates and the inner side of the bottom plate is the sample casting space; a positioning hole is provided longitudinally through the bottom plate; a stripper plate is movably provided at the bottom of the sample casting space of the mold body, and a positioning block matching the positioning hole is installed on the lower surface of the stripper plate; the thickness of the stripper plate is equal to the depth of the sample casting space minus the thickness of the sample.

2. The epoxy resin sample mold that is easy to demould manually according to claim 1, characterized in that: The inner side surface of the side plate is a vertical surface; the shape of the stripping plate is the same as the cross section of the sample casting space.

3. The epoxy resin sample mold that is easy to demould manually according to claim 1, characterized in that: There are at least two positioning holes, which are symmetrically arranged on the bottom plate.

4. The epoxy resin sample mold that is easy to demould manually according to claim 1, characterized in that: The structure also includes a pushing device for pushing the positioning block upward from the positioning hole.

5. The epoxy resin sample mold that is easy to demould manually according to claim 4, characterized in that: The pushing device includes pushing blocks corresponding to the positioning holes one by one.

6. The epoxy resin sample mold that is easy to demould manually according to claim 5, characterized in that: The pushing blocks are installed together on a flat plate.

7. The epoxy resin sample mold that is easy to demould manually according to claim 4, characterized in that: The pushing device includes pushing blocks corresponding to the positioning holes one by one. The bottom of the pushing block is connected to a screw rod through a straight push bearing. The tail end of the screw rod is connected to the turntable. The inner wall of the positioning hole is an internal thread that matches the screw rod thread.

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