CN216782602U - Low length-diameter ratio high-efficiency polyester plasticized fiber screw - Google Patents
Low length-diameter ratio high-efficiency polyester plasticized fiber screw Download PDFInfo
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- CN216782602U CN216782602U CN202120765649.8U CN202120765649U CN216782602U CN 216782602 U CN216782602 U CN 216782602U CN 202120765649 U CN202120765649 U CN 202120765649U CN 216782602 U CN216782602 U CN 216782602U
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- 239000000835 fiber Substances 0.000 title claims abstract description 22
- 229920000728 polyester Polymers 0.000 title claims description 19
- 239000000463 material Substances 0.000 claims abstract description 42
- 238000002844 melting Methods 0.000 claims abstract description 25
- 230000008018 melting Effects 0.000 claims abstract description 25
- 238000002156 mixing Methods 0.000 claims abstract description 24
- 238000000265 homogenisation Methods 0.000 claims abstract description 9
- 239000011295 pitch Substances 0.000 claims description 9
- 239000000956 alloy Substances 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 238000005121 nitriding Methods 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 230000003746 surface roughness Effects 0.000 claims description 3
- 239000012535 impurity Substances 0.000 abstract description 9
- 238000001746 injection moulding Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000007664 blowing Methods 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 4
- 238000010008 shearing Methods 0.000 abstract description 4
- 238000001035 drying Methods 0.000 abstract description 3
- 230000020477 pH reduction Effects 0.000 abstract description 3
- 239000003292 glue Substances 0.000 abstract description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
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- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
Plasticizing fiber screw rod is washed to little draw-in ratio high efficiency includes the body of rod, stalk portion, draw-in groove, bolt and nut, straight section, threaded connection section, adds material section, melting section, mixing section, exhaust section, slot, homogenization section, screw head, pin, spiral shell arris. The utility model has the advantages that: the screw adopts a mode of smaller length-diameter ratio, so that the temperature rise in the charging barrel is kept within a certain limit, good plasticization, high stability, no material adhesion, high glue melting speed, avoidance of acidification during injection molding and high finished product rate during bottle blowing of the bottle blank are achieved; aiming at more raw material impurities, an exhaust section is added on the screw and is matched with an exhaust type screw machine barrel, so that gas impurities are exhausted from an exhaust port, the problems of cracks and falling of a bimetallic material are solved, and the smoothness of a product is ensured; in addition, a drying process is omitted, and the shearing heat is reduced.
Description
Technical Field
The utility model relates to a small length-diameter ratio high-efficiency polyester plasticized fiber screw, belonging to the technical field of screws.
Background
The polyester plasticized fiber screw has the characteristics of low viscosity of raw materials, good fluidity, large specific heat capacity, easy material adhesion, high molding temperature, narrow material temperature regulation range, poor manufacturability and the like in the extrusion injection molding process of practical application. Due to the influence of the factors, the phenomenon of acidification is often generated during injection molding, and the finished product rate of bottle blank blowing is reduced. Secondly, because the raw material impurities are too much, the gas impurities can not be discharged, the problems of cracking and falling of the bimetallic material are easy to occur, and the smoothness of the product can not be ensured. Meanwhile, in order to reduce shearing heat, drying production equipment needs to be additionally purchased, so that the economic benefit is greatly reduced, and the problem needs to be solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a small-length-diameter ratio high-efficiency polyester plasticized fiber screw.
The utility model aims to solve the problems that the existing polyester plasticized fiber screw is easy to acidify during injection molding, the yield is low during bottle blowing, and meanwhile, because gas impurities cannot be discharged, a bimetallic material is easy to crack and fall off, so that the product has low finish.
In order to realize the purpose of the utility model, the technical scheme adopted by the utility model is as follows:
plastify fibre screw rod is washed to little draw-in ratio high efficiency, including the body of rod, stalk portion, draw-in groove, bolt and nut, straight section, threaded connection section, add material section, melting section, mixing section, exhaust section, slot, homogenization section, screw head, pin and spiral shell arris, characterized by: the tail end of the body of rod is equipped with the stalk portion, bilateral symmetry is equipped with the draw-in groove in the stalk portion terminal surface, control equal fixed mounting has bolt and nut in the draw-in groove, the end-to-end connection of stalk portion has flat section, the end-to-end connection of flat section has the threaded connection section, the end-to-end connection of threaded connection section has the reinforced section, the end-to-end connection of reinforced section has the mixed section, the end-to-end connection of mixed section has the exhaust section, inwards the equipartition has the slot on the outer wall of exhaust section, the exhaust section end is connected with the homogenization section, homogenization section end-to-end connection has the screw head, the equipartition has the pin on the outer wall of screw head, reinforced section, the melting section, be equipped with the spiral shell arris on mixed section and the homogenization section, the pitch of spiral shell arris is H, spiral shell arris width is L.
Further, the whole body of the rod body is made of 38CrMoAlA materials, the surface of the rod body is subjected to nitriding treatment, and the nitriding depth is as follows: 0.4mm-0.8 mm; bending strength: more than or equal to 1100MPa, high temperature resistance: more than or equal to 600 ℃; straightness accuracy: less than or equal to 0.015mm, surface roughness: ra0.4; diameter: phi 15-phi 360, length-diameter ratio: L/D = 36.
Further, an alloy layer is sprayed on the surface of the spiral edge, and the integral hardness of the alloy layer is as follows: HRC 60-68.
Furthermore, the rod bodies are equidistant screws with different depths, the heights of the screw edges are equal, and the height value of the screw edges is equal to the numerical value of the screw pitches; edges on two sides of the upper end of the screw edge need to be subjected to blunting treatment; ratio of pitch H to width L of the rib: H/L = 10.
Further, the feeding section, the mixing section and the homogenizing section are equidistant equal-depth screw sections; the depth of the screw groove on the homogenizing section is equal to that of the screw groove on the mixing section; the depth of the spiral groove on the mixing section is equal to that of the spiral groove at the tail end of the melting section; the depth of the screw groove at the front end of the melting section is equal to that of the screw groove on the feeding section.
Furthermore, the depth of the screw groove on the melting section is gradually reduced from the feeding section to the homogenizing section, and the bottom diameter of the screw is gradually increased from the feeding section to the homogenizing section.
Further, the bottom of the groove is a circular arc.
The utility model has the advantages that: the screw adopts a mode of smaller length-diameter ratio, so that the temperature rise in the charging barrel is kept within a certain limit, good plasticization, high stability, no material adhesion, high glue melting speed, avoidance of acidification during injection molding and high finished product rate during bottle blowing of the bottle blank are achieved; aiming at more raw material impurities, an exhaust section is added on the screw and is matched with an exhaust type screw machine barrel, so that gas impurities are exhausted from an exhaust port, the problems of cracks and falling of a bimetallic material are solved, and the smoothness of a product is ensured; in addition, the drying process is omitted, the shearing heat is reduced, and the energy is saved, so that the method has good economic benefit.
Drawings
FIG. 1 is a schematic structural diagram of a low-length-diameter ratio high-efficiency polyester plasticized fiber screw;
FIG. 2 is a schematic cross-sectional view of a neck B-B of a low aspect ratio efficient polyester plasticized fiber screw;
FIG. 3 is a schematic structural diagram of a bolt and a nut of a high-efficiency polyester plasticized fiber screw with a small length-diameter ratio;
FIG. 4 is an enlarged view of the screw flight of the low aspect ratio high performance polyester plasticized fiber screw;
FIG. 5 is a schematic cross-sectional view of a spiral groove C-C of a low aspect ratio high efficiency polyester plasticized fibrous screw;
FIG. 6 is a schematic cross-sectional view of a screw head D-D of a low aspect ratio high efficiency polyester plasticized fiber screw;
FIG. 7 is an enlarged view of a pin of a low aspect ratio high efficiency polyester plasticized fiber screw;
in the figure: 1. the screw rod comprises a rod body 2, a handle part 21, a clamping groove 22, a bolt nut 3, a straight section 4, a threaded connection section 5, a feeding section 6, a melting section 7, a mixing section 8, an exhaust section 81, a groove 9, a homogenizing section 10, a screw head 101, a pin 11 and a screw edge.
Detailed Description
The utility model is further described with reference to the following figures and examples.
Plasticizing fiber screw rod is washed to high efficiency of little draw-ratio, including the body of rod 1, stalk portion 2, draw-in groove 21, bolt and nut 22, straight section 3, threaded connection section 4, add material section 5, melting section 6, mix section 7, exhaust section 8, slot 81, homogenization section 9, screw head 10, pin 101 and spiral shell arris 11, the tail end of body of rod 1 is equipped with stalk portion 2 for the installation is fixed, bilateral symmetry is equipped with draw-in groove 21 in the 2 terminal surfaces of stalk portion for the installation is fixed, equal fixed mounting has bolt and nut 22 in the draw-in groove 21 about, for locking part, the end-to-end connection of stalk portion 2 has straight section 3, is used for providing the connection, the end-to-end connection of straight section 3 has threaded connection section 4, is used for providing threaded connection, the end-to-end connection of threaded connection section 4 has material section 5, is used for carrying and compaction material, the end-to-end connection of material section 5 has melting section 6, is used for melting material, the end-to-end connection of melting section 6 has mix section 7, the screw mixing device is used for further refining and mixing materials, the tail end of the mixing section 7 is connected with an exhaust section 8 and used for discharging gas impurities, grooves 81 are evenly distributed in the outer wall of the exhaust section 8 inwards and used for cutting and mixing the materials, the tail end of the exhaust section 8 is connected with a homogenizing section 9 and used for further mixing and extruding the materials, a screw head 10 is connected to the tail end of the homogenizing section 9 and used for extruding the materials, pins 101 are evenly distributed on the outer wall of the screw head 10 and used for cutting material flow, a feeding section 5, a melting section 6, a mixing section 7 and the homogenizing section 9 are provided with screw ridges 11 and are screw rod components, the screw pitch of the screw ridges 11 is H, and the screw ridge width is L.
Further, the whole body of the rod body 1 is made of 38CrMoAlA materials, the surface is subjected to nitriding treatment, and the nitriding depth is as follows: 0.4mm-0.8 mm; bending strength: more than or equal to 1100MPa, high temperature resistance: more than or equal to 600 ℃; straightness accuracy: less than or equal to 0.015mm, surface roughness: ra0.4; diameter: phi 15-phi 360, length-diameter ratio: L/D = 36.
Further, an alloy layer is sprayed on the surface of the spiral edge 11, and the overall hardness of the alloy layer is as follows: HRC 60-68.
Further, the rod body 1 is an equidistant screw rod with different depths, the heights of the screw edges 11 are equal, and the height value of the screw edges 11 is equal to the numerical value of the screw pitches; the edges on two sides of the upper end of the screw ridge 11 need to be blunted, and the ratio of the screw pitch H of the screw ridge 11 to the screw ridge width L is as follows: H/L = 10.
Further, the feeding section 5, the mixing section 7 and the homogenizing section 9 are equidistant equal-depth screw sections; the depth of the screw groove on the homogenizing section 9 is equal to that of the screw groove on the mixing section 7; the depth of the spiral groove on the mixing section 7 is equal to that of the spiral groove at the tail end of the melting section 6; the depth of the screw groove at the front end of the melting section 6 is equal to that of the screw groove on the feeding section 5.
Furthermore, the depth of the screw groove on the melting section 6 is gradually reduced from the feeding section to the homogenizing section, and the bottom diameter of the screw is gradually increased from the feeding section to the homogenizing section.
Further, the bottom of the groove 81 is a circular arc.
The using method comprises the following steps: after the rod body 1 is installed, adjusting the processing temperature of the machine to be close to the ideal processing temperature range of the processed material, and starting the machine when the rod body 1 reaches the preset temperature; the rod body 1 rotates in the barrel, materials enter the barrel from the hopper and then reach the feeding section 5, and the materials are pushed to move forwards in the feeding section 5 through the rotation of the rod body 1; then the material enters a melting section 6, and the material is fully melted and homogenized through heat transfer and friction shearing in the section; then, the materials enter a mixing section 7, so that the sizes of the components of the materials are further refined and uniform to form an ideal structure, and the materials have the mixing function of distributivity and dispersibility; then, the material enters an exhaust section 8 and is matched with an exhaust hole on the machine barrel to exhaust gas impurities in the material; and finally, the material enters a homogenizing section 9, the material is conveyed and pressurized, a certain pressure is established, the material at the die opening has a certain density, the material is further mixed, the material flow is divided by a pin 101, the interface is increased, the direction of the material flow is changed, the material flow is rearranged, the melt component and the temperature are homogenized, and finally, the material is extruded and granulated through a screw head 10.
Claims (7)
1. Plastify fibre screw rod is washed to little draw-in ratio high efficiency, including the body of rod (1), stalk portion (2), draw-in groove (21), bolt and nut (22), straight section (3), threaded connection section (4), add material section (5), melting section (6), mixing section (7), exhaust section (8), slot (81), homogenization section (9), screw head (10), pin (101) and spiral shell arris (11), characterized by: the tail end of the body of rod (1) is equipped with stalk portion (2), bilateral symmetry is equipped with draw-in groove (21) in stalk portion (2) the terminal surface, equal fixed mounting has bolt and nut (22) in controlling draw-in groove (21), the end-to-end connection of stalk portion (2) has straight section (3), the end-to-end connection of straight section (3) has threaded connection section (4), the end-to-end connection of threaded connection section (4) adds feed segment (5), the end-to-end connection of adding feed segment (5) has melting section (6), the end-to-end connection of melting section (6) has mixing section (7), the end-to-end connection of mixing section (7) has exhaust section (8), inside equipartition has slot (81) on the outer wall of exhaust section (8), exhaust section (8) end-to-end connection has homogenization section (9), homogenization section (9) end-to-end connection has screw head (10), equipartition has pin (101) on the outer wall of screw head (10), add feed section (5), The melting section (6), the mixing section (7) and the homogenizing section (9) are provided with screw ridges (11), the screw pitch of the screw ridges (11) is H, and the width of the screw ridges is L.
2. The low aspect ratio high performance polyester plasticized fiber screw of claim 1, wherein: the rod body (1) is integrally made of 38CrMoAlA materials, the surface is subjected to nitriding treatment, and the nitriding depth is as follows: 0.4mm-0.8 mm; bending strength: more than or equal to 1100MPa, high temperature resistance: more than or equal to 600 ℃; straightness accuracy: less than or equal to 0.015mm, surface roughness: ra0.4; diameter: phi 15-phi 360, length-diameter ratio: L/D = 36.
3. The low aspect ratio high performance polyester plasticized fiber screw of claim 1, wherein: the alloy layer is sprayed on the surface of the spiral edge (11), and the integral hardness of the alloy layer is as follows: HRC 60-68 deg.
4. The low aspect ratio high performance polyester plasticized fiber screw of claim 1, wherein: the rod bodies (1) are equidistant screws with different depths, the heights of the screw edges (11) are equal, and the height values of the screw edges (11) are equal to the numerical values of the screw pitches; the edges on two sides of the upper end of the screw edge (11) need to be blunted, and the ratio of the screw pitch (H) to the screw edge width (L) of the screw edge (11) is as follows: H/L = 10.
5. The low aspect ratio high performance polyester plasticized fiber screw of claim 1, wherein: the feeding section (5), the mixing section (7) and the homogenizing section (9) are equidistant equal-depth screw sections; the depth of the screw groove on the homogenizing section (9) is equal to that of the screw groove on the mixing section (7); the depth of the screw groove on the mixing section (7) is equal to that of the screw groove at the tail end of the melting section (6); the depth of the screw groove at the front end of the melting section (6) is equal to that of the screw groove on the feeding section (5).
6. The low aspect ratio high performance polyester plasticized fiber screw of claim 1, wherein: the depth of the screw groove on the melting section (6) is gradually reduced from the feeding section to the homogenizing section, and the bottom diameter of the screw is gradually increased from the feeding section to the homogenizing section.
7. The low aspect ratio high performance polyester plasticized fiber screw of claim 1, wherein: the bottom of the groove (81) is a circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120765649.8U CN216782602U (en) | 2021-04-15 | 2021-04-15 | Low length-diameter ratio high-efficiency polyester plasticized fiber screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120765649.8U CN216782602U (en) | 2021-04-15 | 2021-04-15 | Low length-diameter ratio high-efficiency polyester plasticized fiber screw |
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| Publication Number | Publication Date |
|---|---|
| CN216782602U true CN216782602U (en) | 2022-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120765649.8U Active CN216782602U (en) | 2021-04-15 | 2021-04-15 | Low length-diameter ratio high-efficiency polyester plasticized fiber screw |
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| CN (1) | CN216782602U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117123595A (en) * | 2023-09-18 | 2023-11-28 | 南京柯若环境技术有限公司 | Equipment and method for forming light filler by extrusion, pyrolysis and plasticization of mixed plastic |
-
2021
- 2021-04-15 CN CN202120765649.8U patent/CN216782602U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117123595A (en) * | 2023-09-18 | 2023-11-28 | 南京柯若环境技术有限公司 | Equipment and method for forming light filler by extrusion, pyrolysis and plasticization of mixed plastic |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High efficiency polyester plasticized fiber screw with small aspect ratio Effective date of registration: 20230613 Granted publication date: 20220621 Pledgee: Postal Savings Bank of China Limited Zhoushan branch Pledgor: Zhoushan Tongda Plastic Machinery Co.,Ltd. Registration number: Y2023330001196 |