Textile harmful substance detection and sample preparation device

Abstract

The utility model discloses a textile harmful substance detection sample preparation device, which comprises a base, a pressing frame, a sample preparation fixing plate and a cutting knife, the pressing frame is provided with a sample preparation window, the pressing frame is detachably and fixedly connected with the base, four sides of a sample are clamped between the pressing frame and the base, and the cutting knife is fixedly connected with the pressing frame. The sample preparation fixing plate is provided with a plurality of pressing block units which are arranged side by side, the pressing block units are used for fixing a sample on the base, the side length of the abutting surface of each pressing block unit is not larger than 5 mm, and a gap allowing the cutting knife to penetrate through is formed between every two adjacent pressing block units; the sample preparation fixing plate is provided with a strip-shaped through hole, and the through hole is overlapped with the gap in one direction; the cutting knife is arranged in the penetrating hole in a penetrating mode and is in sliding fit with the penetrating hole, and a blade of the cutting knife extends to the base. The textile harmful substance detection and sample preparation device is reasonable in structure, time-saving and labor-saving, and convenient and accurate in sample preparation.

Description

Technical Field

[0001] This utility model relates to the field of textile testing technology, and in particular to a sample preparation device for detecting harmful substances in textiles. Background Technology

[0002] Textile quality testing mainly involves testing for harmful substances, including the determination of prohibited azo dyes, heavy metals, and phthalates in textiles. Typically, it requires sampling the textiles and then testing the samples.

[0003] The determination of prohibited azo dyes in textiles is based on GB17592-2024, the determination of heavy metals in textiles is based on GB-T17593.2-2007, and the determination of phthalates in textiles is based on GBT20388-2016. The sample preparation for the detection of harmful substances in textiles mostly requires the sample to be controlled within 5mm*5mm. Traditional sample preparation usually involves manual cutting, which is not only time-consuming and labor-intensive, but also may not meet the national standards for the sample.

[0004] Therefore, it is necessary to improve the existing sample preparation devices for detecting harmful substances in textiles. Utility Model Content

[0005] The purpose of this invention is to overcome the defects in the existing technology and provide a sample preparation device for detecting harmful substances in textiles, which is time-saving, labor-saving, and convenient and accurate in sample preparation.

[0006] To achieve the above technical effects, the technical solution of this utility model is as follows: a sample preparation device for detecting harmful substances in textiles, comprising a base, a pressure frame, a sample preparation fixing plate, and a cutting blade. The pressure frame is provided with a sample preparation window, and the pressure frame is detachably fixed to the base. The four sides of the sample are sandwiched between the pressure frame and the base. The sample preparation fixing plate is provided with a plurality of pressure block units arranged side by side. The pressure block units are used to fix the sample on the base. The side length of the contact surface of the pressure block unit is not greater than 5mm. A gap is provided between two adjacent pressure block units for the cutting blade to pass through. The sample preparation fixing plate is provided with a long strip-shaped perforation, which coincides with the gap in one direction. The cutting blade passes through the perforation and slides with the perforation. The blade of the cutting blade extends to the base.

[0007] According to one embodiment of the present invention, the base is provided with a threaded post, and the pressure frame is provided with a through hole for the threaded post to pass through; it also includes a nut that is threadedly connected to the threaded post, and the pressure frame is clamped between the nut and the base.

[0008] According to one embodiment of the present invention, a protrusion and a groove are provided between the pressure frame and the base to increase the friction between the sample and the base.

[0009] According to one embodiment of the present invention, the sample fixing plate is provided with a positioning hole for the threaded post to pass through.

[0010] According to one embodiment of the present invention, the base is provided with a receiving slot for accommodating the blade of the cutting knife, and the receiving slot is provided corresponding to the gap.

[0011] According to one embodiment of the present invention, a plurality of cutting blades are provided, and each of the plurality of cutting blades corresponds one-to-one with a through hole; it also includes a mounting block for mounting the cutting blades.

[0012] According to one embodiment of the present invention, the sample fixing plate is provided with a limiting plate for limiting the mounting block, and the extending direction of the limiting plate is parallel to the extending direction of the perforation.

[0013] The advantages and beneficial effects of this utility model are as follows: The sample preparation device for detecting harmful substances in textiles has a reasonable structure. By setting a base, a pressure frame, a sample preparation fixing plate, and a cutting blade, the sample is clamped and fixed between the base and the pressure frame. The pressure block unit of the sample preparation fixing plate fixes the sample unit that needs to be cut. The cutting blade cuts the sample by passing through the perforation. Compared with the prior art, it not only has high sample preparation accuracy, but also can cut multiple sample units at one time for different experiments, saving time and effort. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of the textile hazardous substance detection and sample preparation device of this utility model;

[0015] Figure 2 yes Figure 1 An explosion diagram;

[0016] Figure 3 yes Figure 1 A sectional view;

[0017] Figure 4 yes Figure 2 A sectional view;

[0018] In the diagram: 1. Base; 11. Threaded post; 12. Receiving slot; 2. Pressure frame; 21. Sample preparation window; 22. Through hole; 3. Sample preparation fixing plate; 31. Positioning hole; 32. Pressure block unit; 33. Gap; 34. Perforation; 35. Limiting plate; 4. Cutting knife; 5. Nut; 61. Protrusion; 62. Groove; 7. Mounting block; a. Sample. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model. Example

[0020] like Figure 1-4 As shown, the textile hazardous substance detection sample preparation device of the embodiment includes a base 1, a pressure frame 2, a sample preparation fixing plate 3, and a cutting blade 4. The pressure frame 2 is provided with a sample preparation window 21. The pressure frame 2 is detachably fixed to the base 1. The four sides of the sample a are sandwiched between the pressure frame 2 and the base 1. The sample preparation fixing plate 3 is provided with a plurality of pressure block units 32 arranged side by side. The pressure block units 32 are used to fix the sample a on the base 1. The side length of the contact surface of the pressure block unit 32 is not greater than 5mm. A gap 33 is provided between two adjacent pressure block units 32 for the cutting blade 4 to pass through. The sample preparation fixing plate 3 is provided with a long strip-shaped perforation 34. The perforation 34 coincides with the gap 33 in one direction. The cutting blade 4 passes through the perforation 34 and slides with the perforation 34. The blade of the cutting blade 4 extends to the base 1.

[0021] With this design, the sample is flattened and placed on the base 1. The pressure frame 2 presses down to fix the four sides of the sample. The sample fixing plate 3 presses down, and the pressure block unit 32 fixes the sample unit to be cut. The cutting blade 4 passes through the perforation 34 to cut the sample. Then, the sample fixing plate 3 is rotated 90 degrees, and the cutting blade 4 cuts again to cut out the sample unit that meets the national standard. Preferably, the shape formed by several pressure block units 32 is square. Furthermore, the cutting blade 4 can be selected according to the material and thickness of the sample.

[0022] Specifically, the base 1 is provided with a threaded post 11, and the pressure frame 2 is provided with a through hole 22 for the threaded post 11 to pass through; it also includes a nut 5 that is threadedly connected to the threaded post 11, and the pressure frame 2 is sandwiched between the nut 5 and the base 1.

[0023] This design achieves the purpose of fixing the pressure frame 2 to the base 1.

[0024] Specifically, a protrusion 61 and a groove 62 are provided between the pressure frame 2 and the base 1 to increase the friction between the sample a and the base 1.

[0025] This design further ensures the firmness of sample a being fixed between base 1 and pressure frame 2.

[0026] Specifically, the sample fixing plate 3 is provided with a positioning hole 31 through which the threaded post 11 passes.

[0027] This design ensures the accurate positioning of the sample fixing plate 3.

[0028] Specifically, the base 1 is provided with a receiving slot 12 for accommodating the blade of the cutting knife 4, and the receiving slot 12 is provided corresponding to the gap 33.

[0029] This design provides some protection for the cutting blade 4.

[0030] Specifically, there are several cutting blades 4, and each of the several cutting blades 4 corresponds to one of the through holes 34; it also includes a mounting block 7 for mounting the cutting blades 4.

[0031] With this design, multiple sample units can be cut out at once.

[0032] Specifically, the sample fixing plate 3 is provided with a limiting plate 35 for limiting the mounting block 7, and the extending direction of the limiting plate 35 is parallel to the extending direction of the through hole 34.

[0033] With this design, the sliding of mounting block 7 can be limited and guided.

[0034] Furthermore, it also includes a purging device. After the sample is cut, the purging device can clean the surface of the base 1 to prevent cross-contamination between samples. The purging device can be a common rubber blower, air gun, etc.

[0035] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A sample preparation device for detecting harmful substances in textiles, characterized in that, The sample preparation includes a base (1), a pressure frame (2), a sample fixing plate (3), and a cutting blade (4). The pressure frame (2) is provided with a sample preparation window (21). The pressure frame (2) is detachably fixed to the base (1). The four sides of the sample (a) are sandwiched between the pressure frame (2) and the base (1). The sample fixing plate (3) is provided with several pressure block units (32) arranged side by side. The pressure block units (32) are used to fix the sample (a) on the base (1). The side length of the contact surface of the unit (32) is no more than 5mm, and a gap (33) is provided between two adjacent pressing block units (32) for the cutting blade (4) to pass through; the sample fixing plate (3) is provided with a long strip-shaped perforation (34), and the perforation (34) coincides with the gap (33) in one of the directions; the cutting blade (4) passes through the perforation (34) and slides in cooperation with the perforation (34), and the blade of the cutting blade (4) extends to the base (1).

2. The textile hazardous substance detection sample preparation device according to claim 1, characterized in that, The base (1) is provided with a threaded post (11), and the pressure frame (2) is provided with a through hole (22) through which the threaded post (11) passes; it also includes a nut (5) that is threadedly connected to the threaded post (11), and the pressure frame (2) is sandwiched between the nut (5) and the base (1).

3. The textile hazardous substance detection sample preparation device according to claim 2, characterized in that, The pressure frame (2) and the base (1) are provided with a protrusion (61) and a groove (62) to increase the friction between the sample (a) and the base (1).

4. The sample preparation device for detecting harmful substances in textiles according to claim 2, characterized in that, The sample fixing plate (3) is provided with a positioning hole (31) through which the threaded post (11) passes.

5. The textile hazardous substance detection sample preparation device according to claim 1, characterized in that, The base (1) is provided with a receiving slot (12) for accommodating the blade of the cutting knife (4), and the receiving slot (12) is provided in correspondence with the gap (33).

6. The textile hazardous substance detection sample preparation device according to claim 1, characterized in that, The cutting blade (4) is provided in a plurality of parts, and the plurality of cutting blades (4) correspond one-to-one with the perforation (34); it also includes a mounting block (7) for mounting the cutting blade (4).

7. The textile hazardous substance detection sample preparation device according to claim 6, characterized in that, The sample fixing plate (3) is provided with a limiting plate (35) for limiting the mounting block (7), and the extending direction of the limiting plate (35) is parallel to the extending direction of the perforation (34).

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