CN219302084U - Table type sample preparation device for differential scanning calorimeter - Google Patents
Table type sample preparation device for differential scanning calorimeter Download PDFInfo
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- CN219302084U CN219302084U CN202320698421.0U CN202320698421U CN219302084U CN 219302084 U CN219302084 U CN 219302084U CN 202320698421 U CN202320698421 U CN 202320698421U CN 219302084 U CN219302084 U CN 219302084U
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Abstract
The utility model discloses a desk-top sample preparation device for a differential scanning calorimeter, and belongs to the technical field of auxiliary detection equipment. The device comprises a table top, a stamping device arranged on the table top, a stamping head arranged on the output end of the stamping device, a detachable functional plugboard arranged on the table top and positioned at the bottom of the stamping head, and a functional die detachably arranged on the functional plugboard; different functional plugboards can be quickly installed on a host machine and are used for realizing functions of pressing sheets with specified thickness, cutting samples with different sizes and the like; the method can be used for preparing test samples of metal, plastic, rubber, powder and the like which meet the requirements of a differential scanning calorimeter rapidly, can prepare samples to be tested rapidly and conveniently, and has positive significance for improving the accuracy and stability of the differential scanning calorimeter test.
Description
Technical Field
The utility model belongs to the technical field of auxiliary detection equipment, and particularly relates to a table type sample preparation device for a differential scanning calorimeter.
Background
Differential scanning calorimeter is mainly used for thermal analysis equipment of compounds. The power difference (e.g., in the form of heat) input to the sample and reference is measured as a function of temperature at a programmed temperature. The sample is generally placed in a small aluminum crucible for measurement, and some special samples may be used in a platinum crucible or a pure copper crucible, and whether the sample is sufficiently contacted with the bottom of the crucible is an important factor affecting the detection result.
Commercially available differential scanning calorimeters, such as the DSC3 series of Metretolidol, the DSC 204 series of Chi-resistant and the Discovery series of TA, all require that the sample to be measured be in sufficient contact with the bottom of the crucible. The sample to be measured by differential scanning calorimetry is more complicated, such as plastics and products thereof (GB/T19466.1-2004 series standard), rubber and rubber products (GB/T39692-2020 standard, etc.), metal wires, etc. (YY/T0625-2016 standard, etc.), solid chemicals (ASTM E537 standard, etc.), medicines (Chinese pharmacopoeia fourth general rule 0661), etc., and relates to various types of samples of plastic solids, liquids, powders, elastomers, etc.
It is difficult for various types of samples to obtain a flat surface for testing by conventional shearing methods; meanwhile, according to related research, the thickness of a sample to be detected has direct influence on the test, so that the sample to be detected with the specified thickness and size is important for DSC detection.
Disclosure of Invention
In order to overcome the technical defects, the utility model provides a desk-top sample preparation device for a differential scanning calorimeter, which is used for solving the problems related to the background technology.
The utility model provides a desk-top sample preparation device for a differential scanning calorimeter, which comprises: the table top, the stamping equipment set up on the said table top, the stamping head installed on said stamping equipment output, install on said table top, locate at the removable functional plugboard of the bottom of the stamping head, can dismantle the functional mould placed on said functional plugboard;
the functional die comprises a fixed-thickness tabletting die and a fixed-size cutting die; the fixed-thickness tabletting die is in a concentric ring shape with a preset thickness and suitable for obtaining plastic sample subsamples; the sizing cutting die is of a conical structure, and a cylindrical punching tool bit with a preset aperture and suitable for cutting plastic sample subsamples is formed at the top of the sizing cutting die;
or (b)
The functional die comprises a sizing cutting die which is of a conical structure and is provided with a cylindrical punching tool bit with a preset aperture and suitable for cutting high-elasticity sample subsamples at the top;
or (b)
The functional mold comprises a crucible mold, wherein a crucible clamping groove with a preset depth/preset size and suitable for containing powder is formed in the middle of the crucible mold, and a clamping bolt with a preset height is embedded and placed on the upper part of the crucible clamping groove.
Preferably or alternatively, the stamping apparatus is a manual stamping device;
the manual punching device includes: and a main body part, a transverse handle is arranged on one side of the main body part and is connected with the input end/control end of the main body part through a bearing.
Preferably or alternatively, the outer surface of the transverse handle is provided with a rubber sleeve.
Preferably or optionally, the stamping head adopts a double-nut structure, and the adjustable length of the stamping head ranges from 10cm to 25cm;
the surface material of the stamping head is tungsten carbide.
Preferably or alternatively, a plugboard fixing hole is arranged on the table top, and the plugboard fixing hole is positioned just below the stamping head;
and the bottom of the functional plugboard is provided with a locating pin which is matched with the plugboard fixing hole.
Preferably or alternatively, the table top is a stainless steel plate with a preset thickness, and a foot pad made of elastic material is arranged at the bottom of the table top.
Preferably or alternatively, the upper surface of the functional plugboard is provided with a positioning groove for placing different functional moulds and fixing the positions.
Preferably or alternatively, the functional mold is made of steel, and the hardness is in the range of 55-65HRC.
Preferably or optionally, the thickness of the fixed-thickness tabletting mould ranges from 0.1 mm to 2.0mm;
the aperture of the punching tool bit is 3.0-5.0mm, and the edge chamfer is 30-60 degrees;
the aperture of the crucible clamping groove is 4.0-6.0mm, and the depth is 3.0-6.0mm;
the length of the clamping bolt is 5mm, and the diameter of the clamping bolt is 4mm.
The utility model relates to a desk-top sample preparation device for a differential scanning calorimeter, which has the following beneficial effects compared with the prior art: the utility model is composed of manual punching equipment and different functional plugboards matched with the manual punching equipment. Different functional plugboards can be quickly installed on a host machine and are used for realizing functions of pressing sheets with specified thickness, cutting samples with different sizes and the like; the method can be used for preparing test samples of metal, plastic, rubber, powder and the like which meet the requirements of a differential scanning calorimeter rapidly, can prepare samples to be tested rapidly and conveniently, and has positive significance for improving the accuracy and stability of the differential scanning calorimeter test.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic structural view of a functional insert plate and a constant thickness tabletting mold in the present utility model.
Fig. 3 is a schematic view of the structure of the functional board and the sizing-cutting die of the present utility model.
FIG. 4 is a schematic view of the functional insert plate and crucible mold of the present utility model.
Figure 5 is a schematic cross-sectional view of a punching tool bit according to the present utility model,
the reference numerals are: 1. a transverse handle; 2. a bearing; 3. a host section; 4. punching heads; 5. a plugboard fixing hole; 6. a table top; 7. foot pads; 8. a functional plugboard; 9. a positioning pin; 10. a positioning groove; 11. a fixed-thickness tabletting mold; 12. sizing a cutting die; 13. stamping a cutter head; 14. a crucible mold; 15. a crucible clamping groove; 16. a latch; 131. cutter head aperture, 132, knife edge chamfer.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present utility model. It will be apparent, however, to one skilled in the art that the utility model may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the utility model.
Example 1
Referring to fig. 1 to 3, a bench sample preparation apparatus for a differential scanning calorimeter, comprising: a table top 6, a stamping device arranged on the table top 6, a stamping head 4 arranged on the output end of the stamping device, a detachable functional plugboard 8 arranged on the table top 6 and positioned at the bottom of the stamping head 4, and a functional mold detachably arranged on the functional plugboard 8; the functional die comprises a fixed-thickness tabletting die 11 and a fixed-size cutting die 12; the fixed-thickness tabletting die is in a concentric ring shape with a preset thickness and suitable for obtaining plastic sample subsamples; the sizing cutting die 12 is of conical configuration and forms at its top a cylindrical punching head 13 of predetermined aperture suitable for cutting plastic sample subsamples.
The stamping equipment is a manual stamping device; the manual punching device includes: a transverse handle 1 being on the side of the main body part 3 and being connected to the input/control end of the main body part 3 via a bearing 2, and a punching head 4 being mounted on the output end of the main body part 3 are provided. The handle is transversely designed, so that the handle is favorable for a user to hold and control the pressing rhythm; a rubber sleeve is arranged on the surface of the transverse handle 1; the friction force is increased, slipping is avoided, and the safety of the stamping process is improved. The stamping head 4 adopts a double-nut structure, and the adjustable length range of the stamping head is 10cm-25cm; the surface material of the stamping head 4 is tungsten carbide, so that the hardness of the stamping head 4 is improved.
The table top 6 is a stainless steel plate with the thickness of 1cm, so that the overall stability is improved. A foot pad 7 made of elastic material is arranged at the bottom of the table top 6, and in this embodiment, the foot pad 7 is made of rubber and is used for buffering the pressure during tabletting.
A plugboard fixing hole 5 is formed in the table top 6, and the plugboard fixing hole 5 is just located below the stamping head 4; the bottom of the functional plugboard 8 is provided with a locating pin 9 which is matched with the plugboard fixing hole 5. The board fixing hole 5 is used to cooperate with the positioning pin 9 of the functional board 8, and is aimed at fixing the functional board 8 in a fixed position of the host 3. The upper surface of the functional plugboard 8 is provided with a positioning groove 10 for placing different functional molds and fixing positions. In the present embodiment, it specifically refers to a different fixed thickness sheeting die 11 and a different fixed size cutting die 12.
Wherein, the fixed thickness tabletting mould 11 is a group of concentric rings with different thicknesses, the material is made of steel, the hardness range is 55-65HRC, and the thickness range is 0.1-2.0mm. The sizing cutting die 12 is a conical cutting tool, and is made of steel, and the hardness is 55-65HRC. And forming a cylindrical punching bit 13 having a predetermined aperture at the top thereof, adapted to cut a sub-sample of the plastic sample; the punching tool bit 13 is hardened, referring to fig. 5, and is a schematic cross-sectional view of a truncated cone type cutting tool, where a tool bit aperture 131 of the punching tool bit is 3.0-5.0mm, and a tool edge chamfer 132 is 30-60 degrees.
In order to facilitate understanding of the technical scheme of the bench sample preparation device for the differential scanning calorimeter, a brief description is made of the preparation method of plastic samples such as metal, plastic, unvulcanized rubber and the like based on the sample preparation device in the embodiment: firstly, according to the types of plastic samples and related detection requirements, selecting fixed-thickness tabletting dies 11 with different thicknesses, placing the fixed-thickness tabletting dies 11 into the positioning grooves 10 of the functional plugboards 8, fixing the fixed-thickness tabletting dies, and then taking a proper amount of samples to be placed into the fixed-thickness tabletting dies 11; then placing the functional plugboard 8 on the host part 3, clamping a locating pin 9 below the functional plugboard 8 into a plugboard locating hole of the host part 3 for fixation, and adjusting a stamping head 4 of the host part 3 to a proper length; an operator holds the transverse handle 1 and presses the transverse handle forcefully, and drives the stamping head 4 through the bearing 2 to press the sample in the constant-thickness tabletting mold 11 to a flat-plate subspecies with a specified thickness; the sizing cutting die 12 is then selected according to the crucible size of the test equipment; the sizing cutting die 12 is placed in the positioning groove 10 of the functional plugboard 8, and is fixed well; the functional plugboard 8 is placed on the host part 3, and a locating pin 9 below the plugboard is clamped into a plugboard locating hole of the host part 3 for fixation, and the stamping head 4 of the host part 3 is adjusted to a proper length; the flat-plate-shaped subsamples with the specified thickness are placed on the cutter head of the cutting die, an operator holds the transverse handle 1 and presses the transverse handle forcefully, the bearing 2 drives the stamping head 4, the flat-plate-shaped subsamples on the fixed-size cutting die 12 are cut into a wafer-shaped sample to be measured with the fixed thickness and the fixed size, and the sample to be measured can be directly used for differential scanning calorimetric analysis.
Example 2
The difference between this embodiment and embodiment 1 is that: the functional mould comprises only the sizing cutting mould 12. Other equipment requirements are the same as in the embodiment.
Referring to fig. 1 and 3, a bench sample preparation apparatus for a differential scanning calorimeter, comprising: a table top 6, a stamping device arranged on the table top 6, a stamping head 4 arranged on the output end of the stamping device, a detachable functional plugboard 8 arranged on the table top 6 and positioned at the bottom of the stamping head 4, and a functional mold detachably arranged on the functional plugboard 8; the functional die comprises a sizing cutting die 12, the sizing cutting die 12 having a conical configuration and forming at its top a cylindrical punching head 13 having a predetermined aperture suitable for cutting a subsampled high elasticity sample.
In order to facilitate understanding of the technical scheme of the table sample preparation device for the differential scanning calorimeter, a brief description is given to a preparation method of a high-elasticity sample such as vulcanized rubber based on the sample preparation device in the embodiment: because the high-elasticity samples such as vulcanized rubber and the like have poor tabletting effect, a small amount of subsamples can be taken out in a mechanical shearing mode, and then the sizing cutting die 12 is selected according to the crucible size of the testing equipment; the sizing cutting die 12 is placed in the positioning groove 10 of the functional plugboard 8, and is fixed well; then placing the functional plugboard 8 on the host part 3, clamping a positioning pin 9 under the functional plugboard 8 into a plugboard positioning hole of the host part 3 for fixation, and adjusting a punching head 4 of the host part 3 to a proper length; finally, a small amount of sub-sample is taken out in a mechanical shearing mode and placed on the punching tool bit 13, an operator holds the transverse handle 1 and presses the transverse handle forcefully, the bearing 2 drives the punching head 4 to cut the sub-sample on the fixed-size cutting die 12 into a wafer-type sample to be measured, and the sample to be measured can be directly used for differential scanning calorimetric analysis.
Example 3
The difference between this embodiment and embodiment 1 is that: the functional mold is a crucible mold 14. Other equipment requirements are the same as in the embodiment.
Referring to fig. 1 and 4, a bench sample preparation apparatus for a differential scanning calorimeter, comprising: a table top 6, a stamping device arranged on the table top 6, a stamping head 4 arranged on the output end of the stamping device, a detachable functional plugboard 8 arranged on the table top 6 and positioned at the bottom of the stamping head 4, and a functional mold detachably arranged on the functional plugboard 8; the functional mold comprises a crucible mold 14, wherein a crucible clamping groove 15 with a preset depth/preset size and suitable for containing powder is formed in the middle of the crucible mold 14, and a clamping bolt 16 with a preset height is embedded and placed on the upper part of the crucible clamping groove 15.
The crucible die 14 is used for fixing an aluminum crucible for test, and is made of steel, and the hardness range is 55-65HRC. The aperture of the crucible clamping groove 15 is 4.0-6.0mm, and the depth is 3.0-6.0mm. The latch 16 is cylindrical, made of polytetrafluoroethylene, and has a length of 5mm and a diameter of 4mm.
In order to facilitate understanding of the technical scheme of the bench sample preparation device for the differential scanning calorimeter, a brief description is made on the manufacturing method of the powder sample based on the sample preparation device in this embodiment: firstly, placing a crucible mold 14 into a positioning groove 10 of a functional plugboard 8, fixing, taking an aluminum crucible, and placing the aluminum crucible into a crucible clamping groove 15; a small amount of powder sample is taken and placed in an aluminum crucible, and the sample amount is about 1/3 to 2/3 of the crucible volume according to the granularity or apparent density of the sample, and a latch 16 is placed on the sample; then placing the functional plugboard 8 on the host part 3, clamping a positioning pin 9 under the functional plugboard 8 into a plugboard positioning hole of the host part 3 for fixation, and adjusting a punching head 4 of the host part 3 to a proper length; finally, an operator holds the transverse handle 1 and slowly presses down, the bearing 2 drives the stamping head 4, and a sample in the aluminum crucible nested in the die is pressed firmly; the latch 16 is removed and the aluminum crucible is filled with a compacted powder sample which can be used directly for differential scanning calorimetric analysis.
In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations of the utility model are not described in detail in order to avoid unnecessary repetition.
Claims (9)
1. A bench sample preparation apparatus for a differential scanning calorimeter comprising: a table top (6), a stamping device arranged on the table top (6), a stamping head (4) arranged on the output end of the stamping device, a detachable functional plugboard (8) arranged on the table top (6) and positioned at the bottom of the stamping head (4), and a functional mould detachably arranged on the functional plugboard (8);
the functional die comprises a fixed-thickness tabletting die (11) and a fixed-size cutting die (12); the fixed-thickness tabletting die is in a concentric ring shape with a preset thickness and suitable for obtaining plastic sample subsamples; the sizing and cutting die (12) is of conical structure and forms a cylindrical punching tool bit (13) with a preset aperture and suitable for cutting plastic sample subsamples at the top of the sizing and cutting die;
or (b)
The functional die comprises a sizing cutting die (12), wherein the sizing cutting die (12) is of a conical structure, and a cylindrical punching tool bit (13) with a preset aperture and suitable for cutting a high-elasticity sample sub-sample is formed at the top of the sizing cutting die;
or (b)
The functional mold comprises a crucible mold (14), wherein a crucible clamping groove (15) with a preset depth/preset size and suitable for containing powder is formed in the middle of the crucible mold (14), and a clamping bolt (16) with a preset height is embedded and placed on the upper part of the crucible clamping groove (15).
2. The bench sample preparation apparatus for a differential scanning calorimeter of claim 1 wherein the stamping device is a manual stamping device;
the manual punching device includes: a main body part (3) provided with a transverse handle (1) which is arranged on one side of the main body part (3) and is connected with an input end/a control end of the main body part (3) through a bearing (2).
3. The bench sample preparation device for a differential scanning calorimeter as claimed in claim 2, wherein the outer surface of the transverse handle (1) is provided with a rubber sleeve.
4. The bench sample preparation device for a differential scanning calorimeter of claim 1, wherein the punch head (4) adopts a double nut structure, and the adjustable length thereof ranges from 10cm to 25cm;
the surface material of the stamping head (4) is tungsten carbide.
5. The bench sample preparation device for a differential scanning calorimeter as claimed in claim 1, wherein a spigot fixing hole (5) is provided on the bench (6), the spigot fixing hole (5) being located just below the punch head (4);
the bottom of the functional plugboard (8) is provided with a locating pin (9) which is matched with the plugboard fixing hole (5).
6. The bench sample preparation device for a differential scanning calorimeter as claimed in claim 1, wherein the table top (6) is a stainless steel plate with a predetermined thickness, and a foot pad (7) made of an elastic material is provided at the bottom of the table top (6).
7. The bench sample preparation device for a differential scanning calorimeter as claimed in claim 1, wherein the upper surface of the functional insert plate (8) is provided with positioning grooves (10) for placing different functional molds and fixing the positions.
8. The bench sample preparation device for a differential scanning calorimeter of claim 1 wherein the functional mold is made of steel and has a hardness in the range of 55-65HRC.
9. The bench sample preparation device for a differential scanning calorimeter of claim 1 wherein the fixed thickness sheeting die thickness range is 0.1-2.0mm;
the aperture of the punching tool bit (13) is 3.0-5.0mm, and the edge chamfer is 30-60 degrees;
the aperture of the crucible clamping groove (15) is 4.0-6.0mm, and the depth is 3.0-6.0mm;
the length of the latch (16) is 5mm and the diameter is 4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320698421.0U CN219302084U (en) | 2023-04-03 | 2023-04-03 | Table type sample preparation device for differential scanning calorimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320698421.0U CN219302084U (en) | 2023-04-03 | 2023-04-03 | Table type sample preparation device for differential scanning calorimeter |
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| CN219302084U true CN219302084U (en) | 2023-07-04 |
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| CN202320698421.0U Active CN219302084U (en) | 2023-04-03 | 2023-04-03 | Table type sample preparation device for differential scanning calorimeter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117705540A (en) * | 2024-02-04 | 2024-03-15 | 包头市科锐微磁新材料有限责任公司 | Isotropic neodymium iron boron rapid quenching magnetic powder sample preparation device |
-
2023
- 2023-04-03 CN CN202320698421.0U patent/CN219302084U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117705540A (en) * | 2024-02-04 | 2024-03-15 | 包头市科锐微磁新材料有限责任公司 | Isotropic neodymium iron boron rapid quenching magnetic powder sample preparation device |
| CN117705540B (en) * | 2024-02-04 | 2024-05-03 | 包头市科锐微磁新材料有限责任公司 | Isotropic neodymium iron boron rapid quenching magnetic powder sample preparation device |
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