CN217717574U - Mouth mold plugging device of polypropylene melt finger analyzer - Google Patents
Mouth mold plugging device of polypropylene melt finger analyzer Download PDFInfo
- Publication number
- CN217717574U CN217717574U CN202221247890.2U CN202221247890U CN217717574U CN 217717574 U CN217717574 U CN 217717574U CN 202221247890 U CN202221247890 U CN 202221247890U CN 217717574 U CN217717574 U CN 217717574U
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- China
- Prior art keywords
- connecting rod
- polypropylene
- plugging device
- pillar
- finger
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- 239000004743 Polypropylene Substances 0.000 title claims abstract description 28
- -1 polypropylene Polymers 0.000 title claims abstract description 28
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 28
- 238000002844 melting Methods 0.000 claims abstract description 11
- 239000000155 melt Substances 0.000 abstract description 9
- 230000008018 melting Effects 0.000 abstract description 4
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 229910001369 Brass Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
Polypropylene melts indicates analysis appearance bush plugging device, including base and ejector pin, the base includes the chassis, the up end rigid coupling on chassis has the pillar, and threaded hole is opened to the pillar up end, and the ejector pin includes end to end's thimble and connecting rod, and the connecting rod periphery is provided with the screw thread, and the connecting rod is joined in marriage and is adorned in the screw hole of pillar up end. The utility model discloses the fine solution of device because the polypropylene melting back, the mass flow rate is great and fast, consequently makes the end cap move down easily, appears stifled not tight, leaks the phenomenon of appearance, finally leads to the analysis result error, the problem that the analysis number of times increases.
Description
Technical Field
The utility model belongs to the technical field of the analysis device is pointed in the polypropylene melt, concretely relates to polypropylene melts and indicates analysis appearance bush plugging device.
Background
Because the mass flow rate of the polypropylene is higher and faster after the polypropylene is melted, a plug is required to plug a die at the lower end of the instrument in the test process, the lower end of the die plug of the instrument has no supporting force, and a material rod is required to be used for downwards pressing and compacting a sample after the polypropylene material is added before the test is carried out, so that the plug is easy to move downwards, the phenomena of loose plugging and sample leakage occur, the analysis result error is finally caused, and the analysis times are increased. The utility model discloses a fine solution this type of problem of device. The melt mass flow rate of the polypropylene product is in accordance with the national standard GB/T3682.1-2018, and the melt mass flow rate MFR is defined as: the extrusion rate of the molten resin through a die of a prescribed length and inner diameter under prescribed conditions of temperature, load and piston position, and the mass extruded for a prescribed time as the melt mass flow rate, were given in g/10min.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a polypropylene melts indicates analysis appearance bush plugging device, has solved the polypropylene and has melted the problem that indicates that instrument bush is sealed not tight, the hourglass material among the test process.
The utility model discloses the technical scheme who adopts is, and polypropylene melts indicates analysis appearance bush plugging device, including base and ejector pin, the base includes the chassis, and the up end rigid coupling on chassis has the pillar, and open the pillar up end has the internal thread hole, and the ejector pin includes end to end's thimble and connecting rod, and the connecting rod periphery is provided with the screw thread, and the connecting rod is assembled in the internal thread hole of pillar up end.
The utility model is also characterized in that,
the diameter of the chassis is greater than the diameter of the stanchion.
One end of the connecting rod connected with the thimble is provided with a small fixing nut.
An adjusting nut is sleeved on the connecting rod and close to the thimble.
The fixing nut is sleeved on the connecting rod and close to the pillar.
The depth of the internal thread hole on the upper end surface of the pillar is matched with the length of the connecting rod.
The utility model has the advantages that:
the utility model discloses fine solution of device because the polypropylene melts the back, the great and fast of mass flow rate, consequently must plug up the bush of instrument lower extreme with the end cap in the test process, and the bush end cap lower extreme that instrument self was taken does not have the holding power, need to compress tightly the compaction sample downwards with the material pole after adding the polypropylene material before experimental going on, consequently makes the end cap move down easily, appears stifled not tight, the phenomenon of leaking the appearance, finally leads to the analysis result error, the problem that the analysis number of times increases, in addition, the utility model discloses still have following advantage:
1. the device of the utility model is suitable for any polypropylene finger-melting instrument and instruments with similar structure types;
2. the utility model has adjustable height;
3. the utility model discloses the device plays the spare part size of a dimension of height-adjusting effect and does not matter.
Drawings
Fig. 1 is a schematic structural diagram of a port mold plugging device of a polypropylene finger-melting analyzer of the present invention;
fig. 2 is a schematic view of a base structure of a port mold plugging device of the polypropylene finger-melting analyzer of the present invention;
fig. 3 is the ejector pin structure schematic diagram of the die plugging device of the polypropylene finger-melting analyzer of the present invention.
In the figure, 1, a chassis, 2, a support, 3, a fixing nut, 4, a connecting rod, 5, an adjusting nut, 6, a small fixing nut, 7, a thimble, 8, an internal threaded hole, 9, a base and 10, a mandril.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Polypropylene melts indicates analysis appearance bush plugging device, as shown in figure 1, including base 9 and ejector pin 10, as shown in figure 2, base 9 includes chassis 1, and the up end rigid coupling of chassis 1 has pillar 2, and the up end of pillar 2 is opened has internal thread hole 8, as shown in figure 3, ejector pin 10 includes end to end's thimble 7 and connecting rod 4, and connecting rod 4 periphery is provided with the screw thread, and connecting rod 4 is joined in marriage and is adorned in the internal thread hole of pillar 2 upper surface.
The diameter of the chassis 1 is larger than the diameter of the stanchion 2.
One end of the connecting rod 4 connected with the thimble 7 is provided with a small fixed nut 6.
An adjusting nut 5 is sleeved on the connecting rod 4 and close to the thimble 7.
The fixing nut 3 is sleeved on the connecting rod 4 and close to the pillar 2.
The depth of the internal thread hole 8 on the upper end surface of the pillar 2 is matched with the length of the connecting rod 4.
In the above standard mouth mold plugging device used with the polypropylene finger melting instrument for the laboratory, the base 9 may optionally include two cylinders, and the two cylinders are connected up and down.
The diameter of chassis 1 is greater than the diameter of pillar 2, and is specific, chassis 1 (lower cylinder) diameter is 6cm, and is high 2.5cm, and pillar 2 (upper cylinder) diameter is 3cm, and is high 8cm, and pillar 2 (upper cylinder) upper portion has 0.8cm internal thread hole 8, and the degree of depth is 5cm.
The ejector rod 10 consists of a connecting rod 4, a fixing nut 3, an adjusting nut 5, a small fixing nut 6 and an ejector pin 7. The connecting rod 4 is an external thread rod with the diameter of 0.8cm, the length of the connecting rod is 7cm, the connecting rod is made of stainless steel, the fixing nut 3 and the adjusting nut 5 are identical, internal threads with the inner diameter of 0.8cm are arranged, the internal threads are respectively screwed into the connecting rod 4, and the height of the connecting rod can be adjusted up and down. The connecting rod-4 is connected with the pillar-2, and the connecting rod-4 is screwed to adjust the height. The upper part of the connecting rod 4 is provided with an internal thread with the diameter of 0.4 cm. The thimble 7 is made of brass (the brass has good mechanical property, casting property, corrosion resistance and wear resistance), the length is 9.5cm, the diameter is 0.4cm, and the lower part 1cm is an external thread. The inner diameter of the small fixed nut 6 is 0.4cm, and the small fixed nut is screwed into the external thread at the lower part of the thimble 7. The external thread on the lower part of the thimble 7 is connected with the connecting rod 4, and the upper part of the thimble 7 is made into a sharp cone shape and is matched with the inner diameter of a port mould of a polypropylene finger melting instrument by 2.095 mm.
In the actual operation use process, the height of the mouth mold plug mark part can be adjusted according to the actual height from the bottom plate of the finger melting instrument to the standard mouth mold to be completely consistent with the mouth mold, the adjusting nut 5 is screwed upwards to be locked with the small fixing nut 6, the adjusting nut 5 is screwed to enable the connecting rod 4 to enter the depth change of the support column 2 to adjust the height, and after the height is adjusted to be consistent with the required height, the fixing nut 3 is screwed downwards to be locked with the support column 2, so that the phenomenon that the connecting rod 4 is displaced to cause height change in the sample analysis process is prevented, and the ejector pin 7 cannot be completely consistent with the mouth mold, thereby causing material leakage to influence analysis.
Claims (6)
1. A mouth mold plugging device of a polypropylene melt-finger analyzer is characterized by comprising a base (9) and a push rod (10), wherein the base (9) comprises a chassis (1), a support column (2) is fixedly connected to the upper end face of the chassis (1), a threaded hole (8) is formed in the upper end face of the support column (2), the push rod (10) comprises a push needle (7) and a connecting rod (4) which are connected end to end, threads are arranged on the periphery of the connecting rod (4), and the connecting rod (4) is assembled in the threaded hole in the upper end face of the support column (2).
2. The polypropylene melt finger analyzer die plugging device according to claim 1, wherein the diameter of the bottom plate (1) is larger than the diameter of the support column (2).
3. The plugging device for the mouth mold of the polypropylene finger-melting analyzer according to claim 1, wherein a small fixing nut (6) is arranged at one end of the connecting rod (4) connected with the thimble (7).
4. The plugging device for the die of the polypropylene finger-melting analyzer according to claim 3, wherein the connecting rod (4) is sleeved with an adjusting nut (5) near the thimble (7).
5. The plugging device for the die of the polypropylene finger-melting analyzer according to claim 4, wherein the connecting rod (4) is sleeved with a fixing nut (3) near the pillar (2).
6. The plugging device for the die of the polypropylene melt finger analyzer according to claim 1, wherein the depth of the threaded hole (8) on the upper end surface of the support column (2) is matched with the length of the connecting rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221247890.2U CN217717574U (en) | 2022-05-23 | 2022-05-23 | Mouth mold plugging device of polypropylene melt finger analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221247890.2U CN217717574U (en) | 2022-05-23 | 2022-05-23 | Mouth mold plugging device of polypropylene melt finger analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217717574U true CN217717574U (en) | 2022-11-01 |
Family
ID=83795465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221247890.2U Active CN217717574U (en) | 2022-05-23 | 2022-05-23 | Mouth mold plugging device of polypropylene melt finger analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217717574U (en) |
-
2022
- 2022-05-23 CN CN202221247890.2U patent/CN217717574U/en active Active
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