Sample preparation mold

Abstract

The utility model discloses a sample preparation mould, which comprises a mould seat and a mould cover buckled on the mould seat, at least one set of mould cavity is arranged on the mould seat, and each set of mould cavity comprises a plurality of first cavities and a plurality of second cavities. According to the utility model, various samples required by testing can be conveniently prepared at the same time. The rubber raw material performance detection device is suitable for detecting the performance of rubber raw materials before rubber products are produced.

Description

Technical Field

[0001] The utility model belongs to the field of rubber performance testing equipment and relates to a sample preparation mold, in particular to a sample preparation mold capable of preparing multiple samples at the same time. Background Art

[0002] Wear performance is an important indicator of rubber, vulcanized rubber, thermoplastic elastomer and other products, and is closely related to material failure and product safety. Rubber's oil resistance is one of the most important performance indicators of rubber, which directly affects the service life and safety of rubber products in specific oil environments.

[0003] Therefore, when producing rubber soles, it is usually necessary to perform DIN abrasion tests and rubber oil resistance tests on rubber products, and the tests require the preparation of specimens of the specifications required for the tests.

[0004] At present, the preparation of specimens usually requires the use of sample preparation molds to press the material to be tested, and then use a special cutting machine to cut it into the size and shape required for the test. However, the existing sample preparation molds usually only correspond to one performance test. If you want to perform the above two tests, you need to use two sets of sample preparation molds to press the sheet separately and then cut them separately, resulting in a cumbersome sample preparation process and low efficiency. Utility Model Content

[0005] In order to solve the above deficiencies in the prior art, the present invention aims to provide a sample preparation mold, so as to achieve the purpose of being able to simultaneously produce samples required for multiple tests and improve sample preparation efficiency.

[0006] In order to achieve the above purpose, the technical solutions adopted by the present utility model are as follows:

[0007] A sample preparation mold comprises a mold base and a mold cover buckled on the mold base, wherein the mold base is provided with at least one set of mold cavities, and each set of mold cavities comprises a plurality of first cavities and a plurality of second cavities.

[0008] As a limitation of the present invention, the mold base includes an integrally formed sample base and a limiting block, and the limiting block is provided at the end of the upper surface of the sample base to limit the mold cover.

[0009] As a further limitation of the present invention, at least one stop groove is provided on the upper surface of the sample preparation base in a direction perpendicular to the limit block, and the stop groove divides the upper surface of the sample preparation base into multiple areas.

[0010] As a further limitation of the present invention, an anti-overflow groove for containing overflowing rubber is opened around the edge of the mold cavity.

[0011] As a further limitation of the present invention, a glue running groove is further provided on the upper surface of the sample preparation base, and the glue running groove is connected to the anti-overflow groove.

[0012] As another limitation of the present invention, the mold cavity is cylindrical in shape with a diameter of 16 mm.

[0013] As a further limitation of the present invention, the depth of the first cavity is 4 mm, and the depth of the second cavity is 6 mm.

[0014] As a further limitation of the present invention, a numbering groove for distinguishing samples is provided at the bottom of the mold cavity.

[0015] As a third further limitation of the present invention, a handle groove for lifting the mold cover is provided at one end of the lower surface of the mold cover.

[0016] Due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0017] (1) The utility model designs a sample making mold that can prepare multiple samples at the same time. Specifically, by setting mold cavities of different sizes and shapes according to test requirements, samples suitable for multiple tests can be produced in one production, achieving the effect of being able to prepare samples suitable for multiple tests at the same time. At the same time, the step of cutting the rubber material into the required shape after it is shaped is omitted, thereby improving the sample making efficiency.

[0018] (2) In the present invention, the sample preparation seat is divided into multiple areas by the stop groove. Due to the existence of the stop groove, the rubber material in each area will not flow into other areas. Therefore, different areas can be used to prepare samples of different materials, so that samples of multiple materials can be produced at the same time, which greatly improves the sample preparation efficiency.

[0019] (3) In the present invention, an anti-overflow groove and a glue run-off groove are provided on the periphery of the mold cavity. When adding glue into the mold cavity, in order to ensure the integrity of the sample shape, the glue added usually slightly exceeds the capacity of the mold cavity. When the mold cover is buckled on the mold base, the glue in the mold cavity that exceeds the accommodation space will overflow due to the squeezing of the mold cover. At this time, the anti-overflow groove can effectively collect the overflowed glue. When the capacity of the anti-overflow groove is insufficient, the excess glue will flow into the glue run-off groove, avoiding the overflowed glue from flowing over a large area under the squeezing of the mold cover. In addition, when the mold cover is covered, the gap between the anti-overflow groove and the mold cavity and the mold cover is extremely small. When the sample is shaped and taken out, the glue shaped in the anti-overflow groove and the sample will only be connected by a very thin glue, which can be easily torn off along the edge of the sample without affecting the shape and size of the sample.

[0020] (4) In the present invention, a handle groove is provided on the mold cover, which is convenient for human hands to enter. When the sample is finalized, the mold cover can be easily lifted through the handle groove.

[0021] In summary, the utility model can simultaneously complete the production of rubber samples of multiple materials and types, and is suitable for testing the performance of rubber raw materials before producing rubber products. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0023] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0024] Figure 2 This is a schematic structural diagram of the mold cover in an embodiment of the present utility model;

[0025] Figure 3 This is a structural diagram of the mold base in the embodiment of the present utility model;

[0026] Figure 4 Schematic diagram of the positional relationship among the mold cavity, anti-overflow groove and numbering groove in the embodiment of the present utility model;

[0027] Figure 5 A top view of the mold base in an embodiment of the present utility model;

[0028] In the figure: 1. Mold cover; 2. Mold base;

[0029] 11. Handle slot;

[0030] 21. Limit block; 22. Sample preparation seat;

[0031] 221, mold cavity; 222, stop groove; 223, anti-overflow groove; 224, numbering groove; 225, area A; 226, area B; 227, area C;

[0032] 2211, first cavity; 2212, second cavity; 2213, glue running groove. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and understand the present invention and are not intended to limit the present invention.

[0034] This embodiment discloses a sample preparation mold capable of simultaneously preparing samples required for DIN abrasion test and rubber oil resistance test, including: Figure 1 The mold cover 1 and the mold base 2 are shown.

[0035] like Figure 2 As shown, a handle groove 11 for lifting the mold cover 1 is provided on the lower surface of the mold cover 1 , and the handle groove 11 is located at one end of the lower surface of the mold cover 1 .

[0036] like Figures 3 to 5 As shown, the mold base 2 includes a sample preparation base 22 and a limiting block 21 fixed on one end of the upper surface of the sample preparation base 22. The upper surface of the sample holder 22 is provided with a mold cavity 221, a flow-stopping groove 222, an anti-overflow groove 223 and a glue-running groove 2213; in this embodiment, the flow-stopping groove 222 is arranged perpendicular to the limit block 21 and the length of the flow-stopping groove 222 is the same as the width of the upper surface of the sample holder 22, and there are two flow-stopping grooves 222, which divide the upper surface of the sample holder 22 into three areas: area A 225, area B 226 and area C 227; the mold cavity 221 can be set to a variety of shapes. In this embodiment, according to the requirements of the DIN abrasion test and the rubber oil resistance test, it is set to a cylindrical groove with a diameter of 16 mm. Since the sample thicknesses required for the DIN abrasion test and the rubber oil resistance test are 6 mm and 4 mm respectively, the mold cavity 221 includes a first cavity 2211 with a depth of 4 mm and a second cavity 2212 with a depth of 6 mm. The first cavity 2211 and the second cavity 22 12 are provided with nine; an anti-overflow groove 223 is provided on the outer side of the edge of each mold cavity 221. The anti-overflow groove 223 is a circular groove arranged around the outer side of the edge of the mold cavity 221. The outer edge of the anti-overflow groove 223 is connected to the glue running groove 2213. The glue running groove 2213 is an arc-shaped groove with a width of 3mm and a depth of 2mm opened on the upper surface of the sample preparation base 22. There are four glue running grooves 2213 in each area. The two ends of the glue running groove 2213 in each area are respectively connected to the anti-overflow groove 223 on the periphery of the first cavity 2211 and the second cavity 2212 arranged obliquely. When the mold cavity 221 is filled with glue and the mold cover 1 is buckled on the mold base 2, the overflowed glue will flow into the anti-overflow groove 223. When the glue in the anti-overflow groove 223 reaches a certain height, the excess glue will flow into the glue running groove 2213, avoiding the overflowed glue from flowing over a large area under the squeezing of the mold cover.

[0037] It is necessary to add here that Figure 4 and Figure 5 As shown, the first cavity 2211 and the second cavity 2212 are distributed in area A 225, area B 226 and area C 227. Three first cavities 2211 and three second cavities 2212 are provided in each area. The first cavity 2211 and the second cavity 2212 are divided into two parallel groups, and each group is arranged parallel to the stop groove 222. To facilitate the subsequent distinction of samples, a numbering groove 224 is further provided at the bottom of the mold cavity 221. The numbering of the numbering grooves 224 in each group of mold cavities 221 is arranged with the area number as the first and the arrangement order as the second, such as: A1, A2, A3.

[0038] When using this embodiment, it is first necessary to determine the rubber material to be tested, and add the rubber compound of each material into the mold cavity 221 in different areas. Then, after the end of the mold cover 1 away from the handle groove 11 is pressed against the limit block 21, the mold cover 1 is slowly lowered until the mold cover 1 is completely buckled on the mold base 2. After the compound is shaped, the mold cover 1 is opened, the sample is taken out and the overflowed part of the compound is torn off. The sample preparation is completed. After the size measurement is qualified, the relevant test can be carried out.

[0039] It should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art may still modify the technical solutions described in the above embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A sample preparation mold, characterized in that: The invention comprises a mold base and a mold cover buckled on the mold base, wherein the mold base is provided with at least one set of mold cavities, and each set of mold cavities comprises a plurality of first cavities and a plurality of second cavities.

2. A sample preparation mold according to claim 1, characterized in that: The mold base includes an integrally formed sample base and a limiting block. The limiting block is arranged at the end of the upper surface of the sample base to limit the mold cover.

3. A sample preparation mold according to claim 2, characterized in that: At least one flow-stopping groove is provided on the upper surface of the sample preparation seat in a direction perpendicular to the limiting block, and the flow-stopping groove divides the upper surface of the sample preparation seat into multiple areas.

4. A sample preparation mold according to claim 3, characterized in that: An anti-overflow groove for containing overflowing rubber is opened around the edge of the mold cavity.

5. A sample preparation mold according to claim 4, characterized in that: A glue running groove is also provided on the upper surface of the sample preparation seat, and the glue running groove is connected with the anti-overflow groove.

6. A sample preparation mold according to any one of claims 1 to 5, characterized in that: The shape of the mold cavity is cylindrical with a diameter of 16 mm.

7. A sample preparation mold according to claim 6, characterized in that: The depth of the first cavity is 4 mm, and the depth of the second cavity is 6 mm.

8. The sample preparation mold according to claim 7, characterized in that: The bottom of the mold cavity is provided with a numbering groove for distinguishing the specimens.

9. A sample preparation mold according to any one of claims 1-5, 7-8, characterized in that: One end of the lower surface of the mold cover is provided with a handle groove for lifting the mold cover.

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