CN113134959A - Efficient energy-saving screw and extruder - Google Patents
Efficient energy-saving screw and extruder Download PDFInfo
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- CN113134959A CN113134959A CN202110506925.3A CN202110506925A CN113134959A CN 113134959 A CN113134959 A CN 113134959A CN 202110506925 A CN202110506925 A CN 202110506925A CN 113134959 A CN113134959 A CN 113134959A
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- 238000000265 homogenisation Methods 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 25
- 239000000126 substance Substances 0.000 claims abstract description 14
- 238000000926 separation method Methods 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000000779 smoke Substances 0.000 claims description 6
- 238000012806 monitoring device Methods 0.000 claims description 5
- 229920000098 polyolefin Polymers 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
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- 230000007246 mechanism Effects 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 239000011364 vaporized material Substances 0.000 claims 1
- 238000010008 shearing Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 239000003063 flame retardant Substances 0.000 description 12
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 11
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 4
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- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 2
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- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
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- 239000013078 crystal Substances 0.000 description 1
- WHHGLZMJPXIBIX-UHFFFAOYSA-N decabromodiphenyl ether Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1OC1=C(Br)C(Br)=C(Br)C(Br)=C1Br WHHGLZMJPXIBIX-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
- B29C48/802—Heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
- B29C48/82—Cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a high-efficiency energy-saving screw, which comprises a screw body, wherein the interior of a first screw body is of a hollow structure, and an easily-vaporized substance is arranged in the hollow structure. The invention also provides an extruder. Under the condition of ensuring that the strength of the screw is enough, the interior of the screw is designed into a hollow structure, particularly a conical hole hollow shaft structure, so that the weight of the screw is reduced, the torque force of a cantilever beam structure of the screw is reduced, the friction loss between the top of the screw and the inner side wall of a machine barrel is reduced, and the load of a dragging motor is reduced; in addition, a proper amount of easily vaporized substances are added into the holes, and are vaporized and condensed to circulate in the closed conical holes when meeting heat, so that the purpose of heat circulation is achieved, and the temperatures of a compression section and a homogenization section of the screw are more balanced. The invention designs the original linear auxiliary screw edge of the screw separation groove into an arc-shaped structure; the shearing heat and the friction heat of the rubber material in the production process are reduced, and the problem that the heat is too high and difficult to control is solved.
Description
Technical Field
The invention relates to the technical field of extruders, in particular to a high-efficiency energy-saving screw and an extruder.
Background
The screw extruder depends on the pressure and the shearing force generated by the rotation of the screw, so that materials can be fully plasticized and uniformly mixed and are molded through a neck mold. The traditional single screw extruder has the following defects: when the rotating speed of the screw is high, the temperature of a compression section and a metering section is too high and cannot be controlled due to high shearing heat and friction heat.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a high-efficiency energy-saving screw and an extruder, wherein a conical hole hollow shaft structure is designed in the screw, and a proper amount of easily-vaporized substances can be added into the conical hole to be vaporized and thermally circulated when encountering a condensation knot in the closed conical hole, so that the temperature of each section of the screw is more uniform, and the stable compression, stirring, plasticization and extrusion of plastics are ensured when the screw rotates at a low speed or a high speed, or the conical hole hollow shaft structure is designed in the screw and is communicated with the outside, and when the screw works, the internal circulation is generated with the outside air, so that the temperature of each section of the screw is more controllable.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the utility model provides a high-efficient energy-saving screw rod, includes first screw rod body, first screw rod body is inside to be set up to hollow structure, is equipped with easily vaporized substance in the hollow structure and is used for thermal cycle.
Furthermore, the hollow structure comprises a first conical hole hollow shaft structure of the first screw compression section and the first screw homogenization section and a first cylindrical hole hollow shaft structure of the first screw feeding section, and the first conical hole hollow shaft structure and the first cylindrical hole hollow shaft structure are not communicated with each other.
Furthermore, the aperture of the first conical-hole hollow shaft structure is gradually increased along the material conveying direction, an easily-vaporized substance is arranged in the first conical-hole hollow shaft structure, and the aperture ratio of the aperture of the first conical-hole hollow shaft structure in the first screw compression section to the aperture of the first screw homogenization section is 8: 11.
Furthermore, the first screw feeding section of the first screw body feeds materials by symmetrical double screw grooves, the first screw compression section compresses and separates by symmetrical double screw grooves and a separating groove, and the first screw homogenization section homogenizes by symmetrical double screw grooves.
Furthermore, the secondary screw edge of the separation groove is of a circular arc structure.
Further, the easily vaporized substance is water or metal sodium.
In order to achieve the purpose, the invention further provides an efficient energy-saving screw, which comprises a second screw body, wherein the interior of the second screw body is provided with a hollow structure, the hollow structure comprises a second conical hole hollow shaft structure of a second screw compression section and a second screw homogenization section and a second cylindrical hole hollow shaft structure of a second screw feeding section, and the second conical hole hollow shaft structure is communicated with the second cylindrical hole hollow shaft structure and is not sealed.
Furthermore, the second screw body is uniformly fed by symmetrical double screw grooves, the compression ratio of the second screw body is 1.1-1.4, the aperture of the second conical hole hollow shaft structure is gradually increased along the material conveying direction, the aperture ratio of the aperture of the second screw compression section to the aperture ratio of the second screw homogenization section of the second conical hole hollow shaft structure is 8: 11, the screw length-diameter ratio of the second screw feeding section is set as L: D ═ 14.5-18: 1, the screw length-diameter ratio of the second screw compression section is set as L: D ═ 3-5: 1, the screw length-diameter ratio of the second screw homogenization section is set as L: D ═ 4-5.5: 1, and the second screw body is suitable for producing low-smoke halogen-free polyolefin products.
In order to achieve the above object, the present invention also provides an extruder comprising the energy efficient screw as described above.
Furthermore, the extruder is sequentially provided with a feeding device, a screw feeding section, a screw compression section, a screw homogenization section and a machine head in the machine barrel along the material conveying direction, the screw feeding section, the screw compression section and the screw homogenization section are respectively provided with a heating and cooling mechanism and a temperature monitoring device, and a mouth mold is arranged in the machine head.
Has the advantages that: 1. under the condition of ensuring that the strength of the screw is enough, the interior of the screw is designed into a hollow structure, particularly a conical hole hollow shaft structure, so that the self weight of the screw is reduced, the torque force of a cantilever beam structure of the screw is reduced, the friction loss between the top of the screw and the inner side wall of a machine barrel is reduced, and the load of a dragging motor is reduced; secondly, a proper amount of easily vaporized substances are added into the holes, and are vaporized and condensed to circulate in the closed conical holes when meeting heat, so that the purpose of heat circulation is achieved, and the temperatures of a compression section and a homogenization section of the screw are more balanced. 2. The original linear auxiliary screw edge of the screw separation groove is designed into an arc-shaped structure; the shearing heat and the frictional heat of the rubber material in the production process are reduced, and the problem that the temperature of a compression section and a metering section (homogenizing section) is too high and cannot be controlled due to the fact that the shearing heat and the frictional heat are large when the rotating speed of the screw is high is solved; 3. the double-screw groove feeding is fast and stable, and the rubber material is separated twice to ensure that the raw materials are stirred, mixed and plasticized more fully.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the attached drawings
FIG. 1 is a schematic structural view of an energy-efficient screw according to embodiment 1 of the present invention;
fig. 2 is a schematic diagram of a first tapered hole hollow shaft structure and a first cylindrical hole hollow shaft structure inside the high-efficiency energy-saving screw according to embodiment 1 of the present invention;
fig. 3 is a schematic view of a second tapered hole hollow shaft structure and a second cylindrical hole hollow shaft structure inside the high-efficiency energy-saving screw according to embodiment 2 of the present invention;
FIG. 4 is a schematic view of the structure of an extruder described in example 3 of the present invention.
Description of reference numerals:
1-a first screw body, 11-a first screw feeding section, 12-a first screw compression section, 13-a first screw homogenizing section, 14-a first conical hole hollow shaft structure and 15-a first cylindrical hole hollow shaft structure;
2-a second screw body, 21-a second screw feeding section, 22-a second screw compression section, 23-a second screw homogenizing section, 24-a second conical hole hollow shaft structure and 25-a second cylindrical hole hollow shaft structure;
3-a feeding device;
4-machine barrel;
5, a machine head;
6-heating and cooling mechanism;
7-temperature monitoring device.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example 1
Referring to FIGS. 1-2: the utility model provides a high-efficient energy-saving screw rod, includes first screw rod body 1, first screw rod body 1 is inside to be set up to hollow structure, is equipped with easily vaporized substance in the hollow structure and is used for thermal cycle.
This embodiment is guaranteeing that screw rod intensity is under sufficient circumstances, sets up the screw rod into hollow structure, adds the easy vaporization material of appropriate amount in the inclosed hollow structure, when the screw rod carries out the during operation, meets the thermal vaporization, conducts the heat of screw rod each department, is favorable to the heat everywhere of screw rod even, in addition, condenses when meeting the cold to this, circulates to reach the heat cycle purpose.
In a specific example, the hollow structure comprises a first conical hole hollow shaft structure 14 of the first screw compression section 12 and the first screw homogenization section 13 and a first cylindrical hole hollow shaft structure 15 of the first screw feeding section 11, the hole diameter of the first conical hole hollow shaft structure 14 is gradually increased along the material conveying direction, an easily vaporized substance is arranged in the first conical hole hollow shaft structure 14, and the hole diameter ratio of the first conical hole hollow shaft structure 14 in the screw compression section 12 to the hole diameter of the screw homogenization section 13 is 8: 11.
In the embodiment, the interior of the screw is designed into a conical hole hollow shaft structure, so that the self weight of the screw is reduced, the torque force of a cantilever beam structure of the screw is reduced, the friction loss between the top of the screw and the inner side wall of a machine barrel is reduced, the load of a dragging motor is reduced, the temperature of the screw is homogenized into slope change due to the existence of thermal circulation of the conical hole in the screw, and a good heat source (the internal temperature is uniformly increased) is provided for plastic plasticization; the ratio of the aperture of the conical hole hollow shaft structure in the screw compression section to the aperture of the screw homogenization section is set to be 8: 11 (close to 1: 1), in addition, in the concrete implementation, the screw feeding section is also provided with a cylindrical hole hollow shaft structure, the aperture of the cylindrical hole hollow shaft structure is the same as the aperture of the screw compression section, the weight of the screw is reduced, the uniform quality of each section of the screw is ensured, and the working stability of the screw is not influenced; it should be noted that the hollow shaft structure with the tapered hole and the hollow shaft structure with the cylindrical hole of the embodiment are not communicated with each other, and a proper amount of easily vaporizable substance is added into the hollow shaft structure with the tapered hole, mainly to make the temperature of the compression section and the homogenization section of the screw more balanced.
In a specific example, the first screw feeding section 11 of the first screw body feeds materials by symmetrical double screw grooves (equal-depth equal distance), the first screw compressing section 12 compresses and separates by symmetrical double screw grooves and separating grooves (variable-depth variable-distance), the first screw homogenizing section 13 homogenizes by symmetrical double screw grooves, and the secondary screw ridge of the separating groove is in a circular arc structure.
The double-screw-groove feeding of the embodiment is fast and stable, and the auxiliary screw ridges of the screw separation groove are as follows: the original linear design is changed into an arc-shaped structure, so that the shearing heat and the frictional heat of rubber materials in the production process are reduced, and the problem that the temperature of a compression section and a metering section of the traditional linear screw is too high and cannot be controlled due to the fact that the shearing heat and the frictional heat are large when the rotating speed of the screw is high is thoroughly solved; in addition, the rubber material of the embodiment is subjected to twice separation, so that the raw materials are stirred, mixed and plasticized more fully.
Specifically, the easily vaporized substance is water or metallic sodium.
The easily vaporized substances in the embodiment can be subjected to thermal circulation in the screw body by selecting different easily vaporized substances according to the types and specific characteristics of the materials, so that the heat at the high temperature of the screw is brought to the low temperature; the temperature of each section is always controlled within the process requirement range.
In summary, the above structure of this embodiment 1 can be used as an energy-efficient separation type screw, which ensures the compression, stirring, plasticization and extrusion (good plasticization, stable and compact discharge) of plastics when the screw rotates at low speed or high speed.
Example 2
Referring to fig. 3: the utility model provides an energy-efficient screw rod, includes second screw rod body 2, 2 inside settings are hollow structures for second screw rod body, hollow structure includes second screw rod compression section 22 and second screw rod homogenization section 23's second taper hole hollow shaft structure 24 and second screw rod charge section 21's second cylindrical hole hollow shaft structure 25, second taper hole hollow shaft structure 24 communicates with each other and do not seal with second cylindrical hole hollow shaft structure 25.
According to the embodiment, on the premise of ensuring the strength of the screw, the second conical hole hollow shaft structure is communicated with the second cylindrical hole hollow shaft structure, and when the screw works, internal circulation is generated with external air, so that the temperature of each section of the second screw body is more controllable.
Specifically, the second screw body 2 is a symmetrical double-groove uniform feed, the second screw feeding section 21 is added with low-smoke halogen-free flame-retardant polyolefin containing a flame retardant, the compression ratio of the second screw body 2 is 1.1-1.5, the aperture of the second conical hole hollow shaft structure 24 is gradually increased along the material conveying direction, and the aperture ratio of the second conical hole hollow shaft structure 24 in the second screw compression section 22 to the aperture ratio of the second screw homogenization section 23 is 8: 11.
In the specific implementation, the length-diameter ratio of the screw in the second screw feeding section is set as L: D ═ 14.5-18: 1, and the feeding port is used for uniform feeding by symmetrical double-screw grooves; the length-diameter ratio of the screw of the second screw compression section is set to be L: D (3-5): 1; the length-diameter ratio of the screw of the second screw homogenizing section is set to be L: D (4-5.5): 1; the screw has a structure with a smaller compression ratio i to (the ratio i between the volume of the feeding section and the volume of the homogenizing section is 1.1-1.4), so that the compression, stirring, plasticization and extrusion of plastics (stable and compact discharge after plasticization) during low-speed or high-speed rotation of the screw are ensured, and the qualified low-smoke halogen-free flame-retardant polyolefin product with higher quality is produced.
It is to be noted that the flame retardant is divided into low flame retardant, medium flame retardant and high flame retardant according to the different adding proportion of the flame retardant. Commonly used flame retardants are hydrated metal oxides such as aluminum hydroxide, magnesium hydroxide, zinc borate, and decabromodiphenyl oxide and antimony trioxide. The flame retardant can be dehydrated and decomposed when being heated, so that crystal water is released, and a large amount of heat is released, thereby reducing the surface temperature of the polymer, preventing the polymer from being subjected to flame retardation, and achieving the purpose of flame retardation.
In summary, the structure of this embodiment 2 can be used as an efficient energy-saving low-smoke halogen-free flame-retardant screw, and in a specific implementation, the length of the hollow shaft structure of the second conical hole is 680 units (inner hole is formed by the hollow shaft structure of the second conical hole in the material conveying direction)
55 units gradation to
40 units), the length of the second cylindrical hole hollow shaft structure is 2062 units (inner hole)
40 units), is suitable for producing low-smoke halogen-free flame-retardant polyolefin products, and ensures the compression, stirring, plasticization and extrusion (good plasticization, stable and compact discharge) of plastics when the screw rotates at low speed or high speed.
Example 3
To achieve the above object, see fig. 3: the embodiment also provides an extruder which comprises the high-efficiency energy-saving screw.
The extruder of the embodiment has the same advantages as the efficient energy-saving screw compared with the prior art, and the details are not repeated herein.
Specifically, the extruder is equipped with screw feeding section, screw compression section, screw homogenization section and aircraft nose 5 in pan feeding device 3, barrel 4 in proper order along the material input direction, screw feeding section, screw compression section, screw homogenization section all set heating cooling body 6 and temperature monitoring device 7 respectively.
The screw rod of this embodiment adds material section, screw rod compression section, screw rod homogenization section and all can carry out temperature monitoring through the temperature monitoring device who corresponds, when being higher than the settlement temperature or being less than the settlement temperature, carries out temperature regulation through heating cooling body, and the downthehole easy vaporization material of cooperation screw rod for temperature regulation is more even accurate, and heating or cooling process can be more rapid.
Specifically, a neck mold is arranged in the machine head 5.
The die of the present embodiment can mold a melt.
It should be noted that the extruder of this embodiment can select screws with different structures when processing different materials, thereby increasing the throughput.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a high-efficient energy-saving screw rod, its characterized in that includes first screw rod body, first screw rod body is inside to be set up to hollow structure, is equipped with easily vaporized substance in the hollow structure and is used for thermal cycle.
2. The energy-efficient screw of claim 1, wherein the hollow structure comprises a first conical hole hollow shaft structure of the first screw compression section and the first screw homogenization section and a first cylindrical hole hollow shaft structure of the first screw feeding section, and the first conical hole hollow shaft structure and the first cylindrical hole hollow shaft structure are not communicated with each other.
3. The energy-efficient screw of claim 2, wherein the first conical hollow shaft structure has a gradually increasing aperture diameter along the material conveying direction, the first conical hollow shaft structure is provided with the easily vaporized material therein, and the aperture diameter ratio of the first conical hollow shaft structure in the first screw compression section to the aperture diameter ratio of the first screw homogenization section is 8: 11.
4. The high-efficiency energy-saving screw rod according to claim 1, wherein the first screw rod feeding section of the first screw rod body feeds materials by a symmetrical double-screw groove, the first screw rod compression section performs compression separation by a symmetrical double-screw groove and a separation groove, and the first screw rod homogenizing section performs homogenization by a symmetrical double-screw groove.
5. The efficient energy-saving screw according to claim 1, wherein the secondary flight of the separation groove has a circular arc-shaped configuration.
6. The screw of claim 1, wherein the easily vaporizable material is water or metallic sodium.
7. The utility model provides a high-efficient energy-saving screw rod, its characterized in that, includes the second screw rod body, the inside hollow structure that sets up of second screw rod body, hollow structure includes second screw rod compression section and the second cylindrical hole hollow shaft structure of the second screw rod homogenization section's second conical hole hollow shaft structure and second screw rod charging section, second conical hole hollow shaft structure communicates with each other and do not seal with second cylindrical hole hollow shaft structure.
8. The efficient energy-saving screw according to claim 7, wherein the second screw body is uniformly fed by symmetrical double screw grooves, the compression ratio of the second screw body is 1.1-1.4, the aperture of the second conical hollow shaft structure is gradually increased along the material conveying direction, the aperture ratio of the second conical hollow shaft structure in the second screw compression section to the aperture ratio of the second screw homogenization section is 8: 11, the screw length-diameter ratio of the second screw feeding section is set to be L: D ═ 14.5-18: 1, the screw length-diameter ratio of the second screw compression section is set to be L: D ═ 3-5: 1, the screw length-diameter ratio of the second screw homogenization section is set to be L: D ═ 5.5: 1, and the second screw body is suitable for producing low-smoke halogen-free polyolefin products.
9. An extruder comprising the energy efficient screw of any one of claims 1 to 8.
10. The extruder according to claim 9, wherein the extruder is provided with a feeding device, a screw feeding section, a screw compression section, a screw homogenizing section and a nose in sequence along the material conveying direction, wherein the screw feeding section, the screw compression section and the screw homogenizing section are respectively provided with a heating and cooling mechanism and a temperature monitoring device, and the nose is provided with a neck mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110506925.3A CN113134959A (en) | 2021-05-10 | 2021-05-10 | Efficient energy-saving screw and extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110506925.3A CN113134959A (en) | 2021-05-10 | 2021-05-10 | Efficient energy-saving screw and extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113134959A true CN113134959A (en) | 2021-07-20 |
Family
ID=76817932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110506925.3A Pending CN113134959A (en) | 2021-05-10 | 2021-05-10 | Efficient energy-saving screw and extruder |
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| Country | Link |
|---|---|
| CN (1) | CN113134959A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB749079A (en) * | 1952-07-12 | 1956-05-16 | Basf Ag | Improvements in extruding machines for the continuous processing of fusible or thermoplastic plastics |
| JPS55121043A (en) * | 1979-03-13 | 1980-09-17 | Fujikura Ltd | Temperature adjusting method of resin extruder |
| DE3139024A1 (en) * | 1980-10-03 | 1982-05-13 | Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid | Screw for screw extruders or injection moulding machines |
| KR100915937B1 (en) * | 2009-04-22 | 2009-09-07 | 주식회사 우성기공 | Extruder screw with spiral heat medium path |
| CN201317097Y (en) * | 2008-12-24 | 2009-09-30 | 郑州电缆有限公司 | Screw bolt for squeezing halogen-free, low-smoke, fire retardant cable plastic |
| CN208438697U (en) * | 2018-04-27 | 2019-01-29 | 东莞泰星五金制品厂有限公司 | Improve the durable type screw rod of cooling performance |
| CN212400308U (en) * | 2020-05-06 | 2021-01-26 | 天津市恒瑞塑胶机械有限公司 | Extrusion molding screw rod |
| CN214983062U (en) * | 2021-05-10 | 2021-12-03 | 安庆市九羊电工机械设备有限公司 | Efficient energy-saving screw and extruder |
-
2021
- 2021-05-10 CN CN202110506925.3A patent/CN113134959A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB749079A (en) * | 1952-07-12 | 1956-05-16 | Basf Ag | Improvements in extruding machines for the continuous processing of fusible or thermoplastic plastics |
| JPS55121043A (en) * | 1979-03-13 | 1980-09-17 | Fujikura Ltd | Temperature adjusting method of resin extruder |
| DE3139024A1 (en) * | 1980-10-03 | 1982-05-13 | Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid | Screw for screw extruders or injection moulding machines |
| CN201317097Y (en) * | 2008-12-24 | 2009-09-30 | 郑州电缆有限公司 | Screw bolt for squeezing halogen-free, low-smoke, fire retardant cable plastic |
| KR100915937B1 (en) * | 2009-04-22 | 2009-09-07 | 주식회사 우성기공 | Extruder screw with spiral heat medium path |
| CN208438697U (en) * | 2018-04-27 | 2019-01-29 | 东莞泰星五金制品厂有限公司 | Improve the durable type screw rod of cooling performance |
| CN212400308U (en) * | 2020-05-06 | 2021-01-26 | 天津市恒瑞塑胶机械有限公司 | Extrusion molding screw rod |
| CN214983062U (en) * | 2021-05-10 | 2021-12-03 | 安庆市九羊电工机械设备有限公司 | Efficient energy-saving screw and extruder |
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