CN212352836U - Single screw rod feed structure and planet screw extruder - Google Patents
Single screw rod feed structure and planet screw extruder Download PDFInfo
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- CN212352836U CN212352836U CN202020931290.2U CN202020931290U CN212352836U CN 212352836 U CN212352836 U CN 212352836U CN 202020931290 U CN202020931290 U CN 202020931290U CN 212352836 U CN212352836 U CN 212352836U
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Abstract
The utility model discloses a single screw rod feed structure and planet screw extruder, the utility model discloses a single screw rod feed structure during operation, the pay-off section is the pay-off forward, get into mixing section back, the stupefied section of forward spiral shell produces the effect of pump sending forward, the stupefied section of reverse spiral shell produces with the stupefied section of forward spiral shell opposite pumping action, the stupefied section of forward spiral shell and the positive reverse thrust of the stupefied section of reverse spiral shell formation can have played the shearing to the material, tear and draw, hold between the fingers and rub, extruded effect to the dispersion of material is mixed and plastify has been realized. When the single-screw feeding structure is connected with the feeding structure or the planetary structure, preplasticizing of materials can be realized, and after the preplasticized materials enter the planetary screw extruder, abrasion of the materials on the feeding structure or the planetary structure of the planetary screw extruder can be reduced to a great extent.
Description
Technical Field
The utility model relates to a plastics extrusion equipment technical field especially relates to a single screw rod feed structure and planet screw extruder.
Background
When the planetary extruder is used for producing high-calcium high-filling materials and rubber products, the screw rod is easy to wear, and the service life is short. The existing feeding mechanism of the planetary machine consists of a feeding screw and an outer sleeve, only has the feeding function, and can not plasticize and mix materials, the materials enter a mixing section of the planetary machine to be plasticized, dry friction is inevitably generated, and when the plastics are not heated enough and melt uniformly, the abrasion of the inner wall of a charging barrel and the surface of the screw is easily increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a single screw rod feed structure and planet screw extruder to solve the problem that above-mentioned prior art exists, make the material plastify before getting into the mixing section of planet screw extruder, avoid dry friction, reduce feed cylinder inner wall and screw rod surface wear.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides a single screw rod feed structure, establish including feed screw rod and cover the swivel nut in the feed screw rod outside, the rear end and the first power unit of feed screw rod are connected, by the back to preceding stupefied section of the feed section, the stupefied section of forward spiral shell and the stupefied section of reverse spiral shell of having set gradually on the feed screw rod, the feed section with the screw thread of the stupefied section of forward spiral shell is revolved to the same, the stupefied section of forward spiral shell with the screw thread of the stupefied section of reverse spiral shell is revolved to opposite, the stupefied section of forward spiral shell with the stupefied section of reverse spiral shell is mixing section, on the screw shell with the pan feeding mouth has been seted up to the position that the pay-off section.
Preferably, a spiral oil groove is formed in the screw sleeve in the axial direction of the screw sleeve, an oil inlet hole and an oil outlet hole are formed in the screw sleeve, the oil inlet hole and the oil outlet hole are communicated with the oil groove, and high-temperature oil is introduced into the oil groove through the oil inlet hole.
Preferably, a spiral heating wire is wound in the screw sleeve around the axial direction of the screw sleeve, and the heating wire is electrically connected with an external power supply.
Preferably, a hot oil passage is arranged in the feeding screw rod along the axial direction of the feeding screw rod, the hot oil passage comprises an oil inlet flow passage and an oil return flow passage which are arranged in parallel, and the oil inlet flow passage and the oil return flow passage are communicated at the front end of the feeding screw rod.
Preferably, the first power mechanism comprises a motor and a speed reducer, the output end of the motor is in transmission connection with the input end of the speed reducer, and the output end of the speed reducer is fixedly connected with the rear end of the feeding screw rod through a key; and an outlet flange is arranged at the front end of the threaded sleeve.
Preferably, the cross-section of the forward corrugated section and the cross-section of the reverse corrugated section are in a shape formed by sequentially connecting a first straight line section, a first curve section, a second straight line section and a second curve section, the first straight line section is opposite to the second straight line section, and the first curve section is opposite to the second curve section.
The utility model also provides a planet screw extruder, include single screw rod feed structure, still including the second power unit, pay-off structure and a plurality of planet structure that connect gradually, the front end of swivel nut with pay-off structure or arbitrary the structural first charge door of planet is connected.
Preferably, the feeding structure comprises a feeding screw and a feeding barrel sleeved outside the feeding screw, the planetary structure comprises a main screw, a plurality of planetary screws meshed with the main screw and a planetary barrel sleeved outside the main screw and the planetary barrel, the first feeding port is arranged on the feeding barrel or the planetary barrel, the main screw is in transmission connection with the feeding screw, the main screw is adjacent to the planetary structure, the main screw is in transmission connection, and the outermost side of the planetary structure is provided with a discharging port at one end of the planetary barrel.
Preferably, the feeding barrel is connected with the planetary barrels and the planetary barrels are connected with each other through flanges, the inner sides of the joints of two adjacent flanges are provided with spacing rings, and the spacing rings are provided with liquid injection ports.
Preferably, the feeding barrel is further provided with a second feeding port.
The utility model discloses for prior art gain following technological effect:
the utility model discloses a single screw rod feed structure during operation, the pay-off section is the pay-off forward, get into mixing section back, the stupefied section of forward spiral shell produces the effect of pump sending forward, reverse stupefied section of spiral shell produces with the stupefied section of forward spiral shell opposite pumping action, the stupefied section of forward spiral shell and the positive reverse thrust of the stupefied section of reverse spiral shell formation can have played the material and cut, torn and draw, hold between the fingers and rub, extruded effect to the dispersion of material is mixed and plastify has been realized. When the single-screw feeding structure is connected with the feeding structure or the planetary structure, preplasticizing of materials can be realized, and after the preplasticized materials enter the planetary screw extruder, abrasion of the materials on the feeding structure or the planetary structure of the planetary screw extruder can be reduced to a great extent.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a front view of a single screw feeding structure of the present invention;
FIG. 2 is a top view of the single screw feeding structure of the present invention;
FIG. 3 is a schematic view of a feeding screw of the present invention;
fig. 4 is a schematic cross-sectional view of the forward and reverse corrugated sections of the present invention;
FIG. 5 is a top view of the planetary screw extruder of the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 5;
wherein: 1-feeding screw, 2-thread sleeve, 3-feeding section, 4-forward spiral corrugation section, 5-reverse spiral corrugation section, 6-feeding port, 7-oil groove, 8-oil inlet hole, 9-motor, 10-speed reducer, 11-outlet flange, 12-feeding structure, 13-planetary structure, 14-first feeding port, 15-discharging port, 16-spacer ring, 17-oil outlet hole, 18-single screw feeding structure, 19-liquid injection port and 20-second feeding port.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The utility model aims at providing a single screw rod feed structure and planet screw extruder to solve the problem that above-mentioned prior art exists, make the material plastify before getting into the mixing section of planet extruder, avoid dry friction, reduce feed cylinder inner wall and screw rod surface wear.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Example one
As shown in fig. 1-4: this embodiment provides a single screw rod feed structure, establish the swivel nut 2 in the feed screw rod 1 outside including feed screw rod 1 and cover, the rear end and the first power unit of feed screw rod 1 are connected, feed screw rod 1 is last by back to preceding feeding section 3 that has set gradually, positive stupefied section 4, reverse stupefied section 5 and sealing thread section, feeding section 3, the screw thread direction of positive stupefied section 4 and sealing thread section is the same, the screw thread direction of positive stupefied section 4 and reverse stupefied section 5 is opposite, sealing thread section plays sealing effect, positive stupefied section 4 and reverse stupefied section 5 are mixing section, pan feeding mouth 6 has been seted up with the position that feeding section 3 corresponds on the swivel nut 2.
In this embodiment, the cross-sectional shapes of the forward corrugated section 4 and the reverse corrugated section 5 are both shapes formed by sequentially connecting a first straight line section, a first curve section, a second straight line section and a second curve section, the first straight line section is opposite to the second straight line section, and the first curve section is opposite to the second curve section. In this embodiment, the cross sections of the forward direction corrugated section 4 and the reverse direction corrugated section 5 refer to sections perpendicular to the axial direction of the feed screw 1. In this embodiment, the front end indicates the material end, and the rear end is opposite to the front end.
In this embodiment, be provided with heating structure in the swivel nut 2, be provided with spiral oil groove 7 around the axial of swivel nut 2 in the swivel nut 2, be provided with inlet port 8 and oil outlet 17 on the swivel nut 2, inlet port 8 and oil outlet 17 all communicate with oil groove 7, let in high temperature oil in to oil groove 7 through inlet port 8. The heating structure inside the screw sleeve 2 may also be a spiral heating wire wound in the axial direction around the screw sleeve 2, the heating wire being electrically connected to an external power supply. The screw sleeve 2 can be heated by introducing high-temperature oil or heating wires for heating the screw.
In this embodiment, a heating structure is disposed in the feeding screw 1, a hot oil passage is disposed in the feeding screw 1 along an axial direction of the feeding screw 1, the hot oil passage includes an oil inlet flow passage and an oil return flow passage which are disposed in parallel, and the oil inlet flow passage and the oil return flow passage are communicated at a front end of the feeding screw 1. High-temperature oil enters the feeding screw rod 1 through the oil inlet flow passage and flows out of the feeding screw rod 1 through the oil return flow passage, so that the feeding screw rod 1 is heated.
In the embodiment, the heating structure is arranged in the screw sleeve 2 and the feeding screw 1, so that the material in the single-screw feeding structure 18 is heated.
In this embodiment, the first power mechanism includes a motor 9 and a speed reducer 10, an output end of the motor 9 is in transmission connection with an input end of the speed reducer 10, and an output end of the speed reducer 10 is fixedly connected with a rear end of the feeding screw 1 through a key. The first power mechanism realizes the power input to the feeding screw rod 1, and the rotating speed of the feeding screw rod 1 is 60-1000 r/min.
In this embodiment, the front end of the thread insert 2 is provided with an outlet flange 11, and the outlet flange 11 is used for being connected with other structures.
The single screw rod feed structure 18 during operation of this embodiment, the material gets into material feeding section 3 through pan feeding mouth 6, material feeding section 3 is the pay-off forward, get into mixed section back, forward spiral arris section 4 produces the effect of forward pump sending, reverse spiral arris section 5 produces the pumping action opposite with forward spiral arris section 4, forward spiral arris section 4 and reverse spiral arris forward thrust that section 5 formed can have played the effect of shearing, tear and draw, hold between the fingers and rub, the extrusion to the material, thereby the dispersion of having realized the material is mixed and is plastified. When the single-screw feeding structure 18 is connected with the planetary screw extruder, preplasticizing of materials can be realized, and after the preplasticized materials enter the planetary screw extruder, the abrasion of the materials on the feeding structure 12 or the planetary structure 13 of the planetary screw extruder can be reduced to a great extent.
Example two
As shown in fig. 5 to 6, this embodiment provides a planetary screw extruder, which includes the single-screw feeding structure 18 in the first embodiment, and further includes a second power mechanism, a feeding structure 12, and a plurality of planetary structures 13 connected in sequence, where the feeding screw 1 is connected to the feeding structure 12 or the first feeding port 14 on any one of the planetary structures 13 through the outlet flange 11.
Specifically, the feeding structure 12 in this embodiment includes a feeding screw and a feeding barrel sleeved outside the feeding screw, each planetary structure 13 includes a main screw, a plurality of planetary screws engaged with the main screw, and a planetary barrel sleeved outside the main screw and the planetary screws, the first feeding ports 14 are disposed on the side walls of the feeding barrel or the planetary barrel, each first feeding port 14 is provided with an inlet flange, the main screw is in transmission connection with the feeding screw, the main screws of adjacent planetary structures 13 are in transmission connection, and one end of the planetary barrel of the outermost planetary structure 13 is a discharging port 15.
The second power mechanism in this embodiment has the same structure as the first power mechanism in the first embodiment, and includes a motor 9 and a speed reducer 10, an output end of the motor 9 is in transmission connection with an input end of the speed reducer 10, and an output end of the speed reducer 10 in this embodiment is fixedly connected with a rear end of the feeding screw through a key.
In this embodiment, the same heating structures as those in the screw sleeve 2 in the first embodiment are arranged in the feeding cylinder and each of the planetary cylinders, the heating structures may be spiral oil grooves 7 arranged around the axial direction of the feeding cylinder and each of the planetary cylinders, oil inlets 8 and oil outlets 17 are arranged on the feeding cylinder and each of the planetary cylinders, the oil inlets 8 and the oil outlets 17 are both communicated with the oil grooves 7, and high-temperature oil is introduced into the oil grooves 7 through the oil inlets 8. The heating structure in the feeding cylinder and each planetary cylinder can also be a spiral heating wire wound around the feeding cylinder and each planetary cylinder in the axial direction, and the heating wire is electrically connected with an external power supply. The feeding barrel and each planetary barrel can be heated by introducing high-temperature oil or heating wires of a heating screw.
In this embodiment, the same heating structures as those in the feeding screw 1 in the first embodiment are arranged in the feeding screw and each main screw, a hot oil passage is arranged in the feeding screw and each main screw along the axial direction of the feeding screw and each main screw, the hot oil passage comprises an oil inlet flow passage and an oil return flow passage which are arranged in parallel, and the oil inlet flow passage and the oil return flow passage are communicated at the front ends of the feeding screw and each main screw. High-temperature oil enters the feeding screw rods and the main screw rods through the oil inlet flow passages and flows out of the feeding screw rods and the main screw rods through the oil return flow passages, so that the feeding screw rods and the main screw rods are heated.
In this embodiment, the feeding cylinder and the planetary cylinders are connected through flanges, the inner sides of the joints of two adjacent flanges are provided with spacing rings 16, and the spacing rings 16 are provided with liquid injection ports 19. The plasticizer or other plastic additives can be injected through the injection port 19 according to the process requirements of the materials.
In this embodiment, the side wall of the feeding barrel is further provided with a second feeding port 20, and the second feeding port 20 is provided with an inlet flange.
When the planetary screw extruder of the embodiment is used, the following working modes can be adopted: firstly, a single-screw feeding structure 18 can be connected with a first feeding port 14 on a feeding barrel through an outlet flange 11 and an inlet flange, a first material is preplasticized through the single-screw feeding structure 18, and then enters a feeding structure 12 and each planet structure 13; secondly, while preplasticizing the first material by the single-screw feeding structure 18, adding a second material by the second feeding port 20, mixing the second material with the first material, and then passing through each planetary structure 13; thirdly, the single-screw feeding structure 18 can be connected with the first feeding port 14 on any planetary cylinder, at this time, no material can be added into the feeding structure 12, so that the single-screw feeding structure 18 replaces the feeding structure 12, and the material can also be added into the feeding structure 12 to realize the mixing with the material in the single-screw feeding structure 18. The planetary screw extruder of the present embodiment can connect the single screw feeding structure 18 with different positions to achieve different functions.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. A single screw rod feed structure which characterized in that: the feeding device comprises a feeding screw rod and a screw sleeve sleeved on the outer side of the feeding screw rod, wherein the rear end of the feeding screw rod is connected with a first power mechanism, a feeding section, a forward screw ridge section and a reverse screw ridge section are sequentially arranged on the feeding screw rod from back to front, the screw thread directions of the feeding section and the forward screw ridge section are the same, the screw thread directions of the forward screw ridge section and the reverse screw ridge section are opposite, the forward screw ridge section and the reverse screw ridge section are mixing sections, and a feeding port is formed in the position, corresponding to the feeding section, on the screw sleeve.
2. The single screw feeding structure of claim 1, wherein: the oil-feeding structure is characterized in that a spiral oil groove is formed in the screw sleeve in the axial direction of the screw sleeve, an oil inlet hole and an oil outlet hole are formed in the screw sleeve, the oil inlet hole and the oil outlet hole are communicated with the oil groove, and high-temperature oil is introduced into the oil groove through the oil inlet hole.
3. The single screw feeding structure of claim 1, wherein: spiral heating wires are wound in the threaded sleeve around the axial direction of the threaded sleeve and are electrically connected with an external power supply.
4. The single screw feeding structure of claim 1, wherein: the feeding screw is provided with a hot oil channel along the axial direction of the feeding screw, the hot oil channel comprises an oil inlet flow channel and an oil return flow channel which are arranged in parallel, and the oil inlet flow channel and the oil return flow channel are communicated at the front end of the feeding screw.
5. The single screw feeding structure of claim 1, wherein: the first power mechanism comprises a motor and a speed reducer, the output end of the motor is in transmission connection with the input end of the speed reducer, and the output end of the speed reducer is fixedly connected with the rear end of the feeding screw rod through a key; and an outlet flange is arranged at the front end of the threaded sleeve.
6. The single screw feeding structure of claim 1, wherein: the cross sections of the forward spiral corrugation section and the reverse spiral corrugation section are in shapes formed by sequentially connecting a first straight line section, a first curve section, a second straight line section and a second curve section, the first straight line section is opposite to the second straight line section, and the first curve section is opposite to the second curve section.
7. A planetary screw extruder is characterized in that: the single-screw feeding structure comprises a second power mechanism, a feeding structure and a plurality of planetary structures which are sequentially connected, wherein the front end of the screw sleeve is connected with the first feeding port on the feeding structure or any planetary structure.
8. The planetary screw extruder of claim 7, wherein: the feeding structure comprises a feeding screw and a feeding barrel, the feeding barrel is arranged on the outer side of the feeding screw in a sleeved mode, the planetary structure comprises a main screw, a plurality of planetary screws meshed with the main screw and a planetary barrel, the main screw and the planetary barrel are arranged on the outer side of the planetary screws in a sleeved mode, a first feeding opening is formed in the feeding barrel or the planetary barrel, the main screw is in transmission connection with the feeding screw, the main screw is adjacent to the planetary structure, the main screw is in transmission connection, and the planetary structure on the outermost side is provided with a discharging opening at one end of the planetary barrel.
9. The planetary screw extruder of claim 8, wherein: the feeding barrel is connected with the planetary barrels and the planetary barrels are connected through flanges, the inner sides of the joints of two adjacent flanges are provided with spacing rings, and the spacing rings are provided with liquid injection ports.
10. The planetary screw extruder of claim 8, wherein: and the feeding barrel is also provided with a second feeding port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020931290.2U CN212352836U (en) | 2020-05-28 | 2020-05-28 | Single screw rod feed structure and planet screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020931290.2U CN212352836U (en) | 2020-05-28 | 2020-05-28 | Single screw rod feed structure and planet screw extruder |
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| Publication Number | Publication Date |
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| CN212352836U true CN212352836U (en) | 2021-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020931290.2U Active CN212352836U (en) | 2020-05-28 | 2020-05-28 | Single screw rod feed structure and planet screw extruder |
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| CN (1) | CN212352836U (en) |
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2020
- 2020-05-28 CN CN202020931290.2U patent/CN212352836U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210519 Address after: 065500 Jingba Road, aerospace industry base, North Industrial Park, Gu'an County, Langfang City, Hebei Province Patentee after: BEIJING HUATENGJIAHE WINTEC, Ltd. Patentee after: LANGFANG HUATENG JIAHE EXTRUSION MACHINE MANUFACTURING Co.,Ltd. Address before: 065500 Jingba Road, aerospace industry base, North Industrial Park, Gu'an County, Langfang City, Hebei Province Patentee before: BEIJING HUATENGJIAHE WINTEC, Ltd. |
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| TR01 | Transfer of patent right |