CN210166250U - Foam repeated compression testing machine - Google Patents
Foam repeated compression testing machine Download PDFInfo
- Publication number
- CN210166250U CN210166250U CN201920901378.7U CN201920901378U CN210166250U CN 210166250 U CN210166250 U CN 210166250U CN 201920901378 U CN201920901378 U CN 201920901378U CN 210166250 U CN210166250 U CN 210166250U
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- fixed
- plate
- fixing
- pneumatic cylinder
- portal frame
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Abstract
The utility model discloses a foam repeated compression testing machine mainly relates to the testing machine field. Including base, portal frame, pneumatic cylinder, briquetting, bottom plate and fixed block down, the portal frame is fixed on the base, the pneumatic cylinder passes through the bolt fastening at the top of portal frame, the vertical direction of pneumatic cylinder is arranged, the piston rod of pneumatic cylinder stretches out downwards, the briquetting is fixed in its positive piston rod bottom end down, the top surface at the base and in the below of portal frame are fixed to the bottom plate, be provided with a plurality of fixed orificess on the bottom plate, the fixed orifices is the screw hole, the fixed block is fixed and is used for restricting the sample on the bottom plate. The beneficial effects of the utility model reside in that: the thin sheet was well fixed for repeated compression tests.
Description
Technical Field
The utility model relates to a testing machine field specifically is foam repeated compression testing machine.
Background
The porous elastic material in interior decoration is subject to the conditions of thickness reduction and hardness reduction that occur with use. In order to evaluate the thickness reduction value and the hardness reduction value, the state has developed the national standard GB/T18941. This criterion is a measure of the performance of the decorative, latex-type and polyurethane-type porous elastomeric materials. The principle is to repeatedly press the sample through a ram having a smaller area than the sample to achieve the maximum load in each impact cycle that is maintained within the specified range. The sample should be only cut into cubes with a side length of 380mm and a thickness of 50 mm. For some of the produced thinner sheets, the test was performed with multiple layers stacked to about 50 mm. Because of the multi-layer stack, the multi-layer materials may shift in position relative to each other during the test, and thus the test results may be unreliable. And they cannot be bonded to each other during sample preparation because the bonding affects the structure of the raw material. The existing testing machine cannot be well adapted to the test of the thinner material.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a foam repeated compression testing machine, it can be good fixed thinner panel carry out repeated compression test.
The utility model discloses a realize above-mentioned purpose, realize through following technical scheme:
foam repeated compression testing machine, including base, portal frame, pneumatic cylinder, briquetting, bottom plate and fixed block down, the portal frame is fixed on the base, the pneumatic cylinder passes through the bolt fastening at the top of portal frame, the vertical direction of pneumatic cylinder is arranged, the piston rod of pneumatic cylinder stretches out downwards, the briquetting is fixed in its positive rigid's bottom of the piston rod down, the top surface at the base and in the below of portal frame are fixed to the bottom plate, be provided with a plurality of fixed orificess on the bottom plate, the fixed orifices is the screw hole, the fixed block is fixed and is used for restricting the sample on the bottom plate.
The fixing device is characterized in that a fixing plate is arranged on one side of the bottom of the fixing block, a mounting hole is formed in the fixing plate, a compression screw is arranged at the top of the fixing block, a compression plate is connected to one side of the fixing plate through the compression screw, and the compression plate extends to one side of the fixing block.
And a spring is arranged between the top surface of the fixed block and the bottom surface of the pressing plate, so that the pressing plate is far away from the fixed block.
The mounting hole is a long hole, and the length direction of the mounting hole is the direction far away from the fixing plate.
The spacing of the fixing holes is about 20mm, and the fixing holes use threads of M8.
Contrast prior art, the beneficial effects of the utility model reside in that:
when the sample pressing device is used, a sample is placed on the bottom plate, then the fixing block is placed on the periphery of the sample, the pressing plate is placed on one side facing the sample, and the side, not provided with the fixing plate, of the fixing block is tightly attached to the side face of the sample. Simultaneously, the mounting holes and the fixing holes are flushed, and then the fixing blocks are fixed on the bottom plate through bolts, so that the relative sliding of the samples in the horizontal direction can be limited. And then the compression screw is screwed to enable the bottom surface of the compression plate to be in contact with the top surface of the sample, so that the samples of the multilayer thin plate are completely limited, and the test failure caused by the movement of a certain layer of the sample can be avoided in the test process.
Drawings
Fig. 1 is a perspective view of the structure of the present invention.
Fig. 2 is an enlarged view of part a of the present invention.
Fig. 3 is a perspective view of the fixing block of the present invention.
Reference numerals shown in the drawings:
1. a base; 2. a gantry; 3. a pneumatic cylinder; 4. pressing the block; 5. a base plate; 6. a fixed block; 7. a fixing hole; 8. a fixing plate; 9. mounting holes; 10. a compression plate; 11. a compression screw; 12. a spring.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope defined in the present application.
Example (b): foam repeated compression testing machine, including base 1, portal frame 2, pneumatic cylinder 3, briquetting 4, bottom plate 5 and fixed block 6 down, portal frame 2 is fixed on base 1, pneumatic cylinder 3 passes through the bolt fastening at the top of portal frame 2, 3 vertical directions of pneumatic cylinder arrange, the piston rod of pneumatic cylinder 3 stretches out downwards, briquetting 4 passes through the fix with screw in its positive rigid piston rod bottom down, fills the action that the gas filling accomplished briquetting 4 constantly pushes down and promote down to pneumatic cylinder 3.
The lower pressing block 4 is of a cylindrical structure, the diameter of the lower pressing block 4 is 250mm, the lower edge of the lower pressing block is provided with a round angle with the radius of 25mm, and the surface of the lower pressing block is smooth and free from burrs.
The base plate 5 is fixed to the top surface of the base 1 and below the gantry 2, which in the state of the art is required for a platform for holding the sample, which is capable of supporting the sample completely and has holes of diameter about 6mm and spacing about 20mm suitable for ventilation in order to allow air to escape from under the sample. The bottom plate 5 is provided with a series of fixing holes 7, the fixing holes 7 are threaded holes, the distance between the fixing holes 7 is about 20mm, and the fixing holes 7 are threaded with M8, so that the small diameter of the fixing holes 7 is close to 6mm, and air circulation is facilitated.
Fixed plate 8 is formed to bottom one side integrated into one piece of fixed block 6, it has mounting hole 9 to open on the fixed plate 8, mounting hole 9 is the slot hole, the length direction of mounting hole 9 is the direction of keeping away from fixed plate 8.
The top of fixed block 6 is provided with pressure strip 10, 6 top surfaces of fixed block are provided with two screw holes, one side on the pressure strip 10 is provided with the via hole that corresponds with 6 top surface screw holes of fixed block, and 6 top surfaces of fixed block are provided with two threaded holes and are equipped with housing screw 11, fixed block 6 passes through housing screw 11 fixed connection with pressure strip 10. The pressure strip 10 extends, when fastened, to the side without the fastening plate 8. A spring 12 is arranged between the fixed block 6 and the pressing plate 10, and the spring 12 and the pressing screw 11 are coaxially arranged. The use of the spring 12 can facilitate the self-jacking of the hold-down plate 10 on the sample. The two screws are used for fixing, so that the compression plate 10 can be limited to rotate along the compression screws 11, and only one compression screw 11 can be installed if quick disassembly is required in actual use, so that disassembly and assembly are convenient. However, only one compression screw 11 may be used to rotate the compression plate 10 during the test, so that two screws are used for fixing.
The height of fixed block 6 is 40mm, because thickness about 50mm during the sample, including being provided with spring 12 between fixed block 6 and the pressure strip 10, 5mm when spring 12 is compressed to the height of limit, has 5mm distance for 50 mm's height like this in addition, can guarantee that pressure strip 10 is effectual to the sample.
When the sample testing device is used, a sample is placed on the bottom plate 5, then the fixing blocks 6 are placed on the periphery of the sample, and the pressing plate 10 is placed on the side facing the sample, namely the side, not provided with the fixing plate 8, of the fixing blocks 6 and clings to the side of the sample. At the same time, the mounting holes 9 are aligned with the fixing holes 7, and then the fixing block 6 is fixed to the bottom plate 5 by bolts, so that the relative sliding of the test pieces in the horizontal direction is restricted.
And then the compression screw 11 is screwed to enable the bottom surface of the compression plate 10 to be contacted with the top surface of the sample, so that the samples of the multilayer thin plates are completely limited, and the test failure caused by the movement of a certain layer of the sample can not occur in the test process.
Claims (5)
1. Foam repeated compression testing machine, its characterized in that: including base, portal frame, pneumatic cylinder, briquetting, bottom plate and fixed block down, the portal frame is fixed on the base, the pneumatic cylinder passes through the bolt fastening at the top of portal frame, the vertical direction of pneumatic cylinder is arranged, the piston rod of pneumatic cylinder stretches out downwards, the briquetting is fixed in its positive piston rod bottom end down, the top surface at the base and in the below of portal frame are fixed to the bottom plate, be provided with a plurality of fixed orificess on the bottom plate, the fixed orifices is the screw hole, the fixed block is fixed and is used for restricting the sample on the bottom plate.
2. The foam repeated compression tester according to claim 1, wherein: the fixing device is characterized in that a fixing plate is arranged on one side of the bottom of the fixing block, a mounting hole is formed in the fixing plate, a compression screw is arranged at the top of the fixing block, a compression plate is connected to one side of the fixing plate through the compression screw, and the compression plate extends to one side of the fixing block.
3. The foam repeated compression tester according to claim 2, wherein: and a spring is arranged between the top surface of the fixed block and the bottom surface of the pressing plate, so that the pressing plate is far away from the fixed block.
4. The foam repeated compression tester according to claim 2, wherein: the mounting hole is a long hole, and the length direction of the mounting hole is the direction far away from the fixing plate.
5. The foam repeated compression tester according to claim 1, wherein: the spacing of the fixing holes is about 20mm, and the fixing holes use threads of M8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920901378.7U CN210166250U (en) | 2019-06-14 | 2019-06-14 | Foam repeated compression testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920901378.7U CN210166250U (en) | 2019-06-14 | 2019-06-14 | Foam repeated compression testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210166250U true CN210166250U (en) | 2020-03-20 |
Family
ID=70171928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920901378.7U Expired - Fee Related CN210166250U (en) | 2019-06-14 | 2019-06-14 | Foam repeated compression testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210166250U (en) |
-
2019
- 2019-06-14 CN CN201920901378.7U patent/CN210166250U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200320 Termination date: 20210614 |
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| CF01 | Termination of patent right due to non-payment of annual fee |