CN221271969U - Double-screw extruder with multiple feed inlets - Google Patents
Double-screw extruder with multiple feed inlets Download PDFInfo
- Publication number
- CN221271969U CN221271969U CN202323153742.1U CN202323153742U CN221271969U CN 221271969 U CN221271969 U CN 221271969U CN 202323153742 U CN202323153742 U CN 202323153742U CN 221271969 U CN221271969 U CN 221271969U
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- China
- Prior art keywords
- screw
- gear box
- motor
- gear
- barrel
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a double-screw extruder with multiple feed inlets, which comprises a bottom plate, wherein a gear box is arranged on one side above the bottom plate, a motor is arranged on one side of the gear box, a machine barrel is arranged on one side, far away from the motor, of the gear box, a first screw is arranged on one side, close to the motor, in the machine barrel, a motor rotating shaft penetrates through the gear box and is fixedly connected with the first screw, a first gear is arranged at one end, located in the gear box, of the first screw, a second screw is arranged on one side, one end of the second screw penetrates through the gear box and is fixedly connected with the second gear, a heating protection cover is arranged on the outer side, close to one end of the gear box, of the machine barrel, and four feeding pipes which are distributed in a matrix and are communicated with the machine barrel are arranged on the outer side of the heating protection cover. The extruder is simple in structure, convenient to operate, good in material processing effect, and capable of adding materials into the machine barrel in different reaction stages, and effectively improving the processing quality of the extruder.
Description
Technical Field
The utility model relates to the technical field of extruders, in particular to a double-screw extruder with multiple feed inlets.
Background
With the rapid development of the plastic industry, plastic products have been applied to various fields and have been widely used, and plastic production equipment has become important mechanical equipment in China, and in the existing process, plastic products are basically produced by adopting an extrusion molding process, wherein the extrusion molding process is a molding processing method with the greatest variety, most variation, high productivity, strong adaptability, wide application and greatest specific gravity in the polymer processing field. The extrusion molding process is suitable for all high polymer materials and thermoplastics, and can also be used for thermosetting plastics, and about 50% of thermoplastic plastic products are molded by extrusion at present. The reaction in the twin-screw extruder generally comprises a feeding section, a melting mixing section, a side feeding section, a dispersing/homogenizing section, a devolatilizing section and a discharging pressurizing section, wherein the existing twin-screw extruder mainly adopts a single feeding port, and materials can only be filled into the material extruder in the same reaction section, but not be respectively added into different reaction sections.
Disclosure of utility model
In order to solve the problems, the utility model provides a multi-feed-port double-screw extruder. The utility model solves the problems that the existing double-screw extruder mainly adopts a single feed inlet, materials can only be filled into the material extruder in the same reaction section, and the materials can not be added into different reaction sections respectively.
The utility model relates to a double-screw extruder with multiple feed inlets, which comprises a bottom plate, wherein a gear box is arranged on one side above the bottom plate, a motor is arranged on one side of the gear box, a machine barrel is arranged on one side, far away from the motor, of the gear box, a first screw is arranged on one side, close to the motor, in the machine barrel, of the gear box, a motor rotating shaft penetrates through the gear box to be fixedly connected with the first screw, a first gear is arranged at one end, located in the gear box, of the first screw, a second screw is arranged on one side, penetrating through the gear box, of the second screw to be fixedly connected with the second gear, a heating protection cover is arranged on the outer side, close to one end of the gear box, of the machine barrel, an electric heating pipe is arranged between the heating protection cover and the machine barrel, and four feeding pipes which are distributed in a matrix and are communicated with the machine barrel are arranged on the outer side of the heating protection cover.
In the scheme, a feeding cylinder is arranged above the feeding pipe.
In the above scheme, the barrel is kept away from heating protection casing one end outside and is equipped with the refrigeration shell, refrigeration shell top is equipped with the outlet pipe, refrigeration shell lower extreme is equipped with the inlet tube.
In the scheme, the lower part of the refrigeration shell is fixedly connected with the bottom plate through the support frame.
In the scheme, four feeding pipes are respectively positioned at one ends of the first screw rod and the second screw rod, which are close to the motor, and at the middle parts above the first screw rod and the second screw rod.
In the above scheme, the motor is a servo motor.
In the above scheme, a coupling is arranged between the motor and the first screw
The utility model has the advantages and beneficial effects that: the utility model provides a double-screw extruder with multiple feed inlets, wherein a motor drives a first screw and a first gear to rotate, a second gear meshed with the first gear starts to rotate under the drive of the first gear, and the second screw also rotates under the drive of the second gear, so that the purpose of processing materials is achieved through the mutual matching between the first screw and the second screw, and a feed pipe is respectively positioned at different positions above a machine barrel, so that materials can be added into the machine barrel according to different reaction stages of the materials when the machine is operated to add the materials into the machine barrel. The extruder is simple in structure, convenient to operate, good in material processing effect, and capable of adding materials into the machine barrel in different reaction stages, and effectively improving the processing quality of the extruder.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a cross-sectional view of the present utility model;
fig. 3 is a schematic diagram of a portion a of the present utility model.
In the figure: 1. soleplate 2, gear box 3, motor 4, barrel
5. A first screw 6, a first gear 7, a second screw 8, a second gear
9. Heating protection cover 10, electric heating tube 11, feeding tube 12 and feeding barrel
13. A refrigeration shell 14, a support 15, a water outlet pipe 16 and a water inlet pipe.
Detailed Description
The following describes the embodiments of the present utility model further with reference to the drawings and examples. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.
As shown in figures 1-3, the utility model relates to a double-screw extruder with multiple feed inlets, which comprises a base plate 1, a gear box 2 is arranged on one side above the base plate 1, a motor 3 is arranged on one side of the gear box 2, a machine barrel 4 is arranged on one side, far away from the motor 3, of the gear box 2, a first screw 5 is arranged on one side, close to the motor 3, of the machine barrel 4, two ends of the first screw 5 are movably connected with the inner wall of the machine barrel 4, a rotating shaft of the motor 3 penetrates through the gear box 2 and is fixedly connected with the first screw 5, one end, located in the gear box 2, of the first screw 5 is provided with a first gear 6, one side of the first screw 5 is provided with a second screw 7, two ends of the second screw 7 are movably connected with the inner wall of the machine barrel 4, one end of the second screw 7 penetrates through the gear box 2 and is fixedly connected with a second gear 8, the first gear 6 and the second gear 8 are mutually meshed, and when the motor 3 works, the motor 3 drives the first screw 5 and the first gear 6 to rotate, the second gear 8 meshed with the first gear 6 starts to rotate under the drive of the first gear 6, and the second screw 7 also rotates under the drive of the second gear 8, so that the purpose of processing materials is achieved through the mutual matching between the first screw 5 and the second screw 7, a heating shield 9 is arranged at the outer side of one end of the machine barrel 4 close to the gear box 2, an electric heating tube 10 is arranged between the heating shield 9 and the machine barrel 4, when the electric heating tube 10 works, materials in the machine barrel 4 can be heated, four feed pipes 11 which are arranged in a matrix and are communicated with the machine barrel 4 are arranged at the outer side of the heating shield 9, the feed pipes 11 are respectively positioned at different positions above the machine barrel 4, so that when the materials are added into the machine barrel 4, the materials can be processed according to different reaction stages of the materials, material is fed into barrel 4 through feed tube 11 at a different location.
The feeding tube 12 is arranged above the feeding tube 11, the lower end of the feeding tube 12 is in an inverted cone shape, and materials are more conveniently added into the machine barrel 4 through the arrangement of the feeding tube 12.
The barrel 4 is kept away from the heating protection casing 9 one end outside and is equipped with refrigeration shell 13, refrigeration shell 13 top is equipped with outlet pipe 15, refrigeration shell 13 lower extreme is equipped with inlet tube 16, forms the cooling cavity between refrigeration shell 13 and the barrel 4, can pour into the coolant liquid into between refrigeration shell 13 and the barrel 4 through inlet tube 16 to can carry out the hole to the inside material of barrel 4 through the coolant liquid and be cooled, can discharge the coolant liquid after the heat transfer through outlet pipe 15.
The lower part of the refrigeration shell 13 is fixedly connected with the bottom plate 1 through a supporting frame 14.
The four feeding pipes 11 are respectively positioned at one ends of the first screw rod 5 and the second screw rod 7, which are close to the motor 3, and at the middle parts above the first screw rod 5 and the second screw rod 7.
The motor 3 is a servo motor.
A coupling is arranged between the motor 3 and the first screw 5, and the stability of transmission between the motor 3 and the first screw 5 is effectively improved due to the arrangement of the coupling.
Specifically, in the utility model, when the motor 3 works, the motor 3 drives the first screw 5 and the first gear 6 to rotate, the second gear 8 meshed with the first gear 6 starts to rotate under the drive of the first gear 6, and the second screw 7 also rotates under the drive of the second gear 8, so that the purpose of processing materials is achieved through the mutual matching between the first screw 5 and the second screw 7, the electric heating tube 10 can heat the materials in the machine barrel 4 when working, and the feeding pipes 11 are respectively positioned at different positions above the machine barrel 4, so that when the materials are added into the machine barrel 4, the materials can be added into the machine barrel 4 through the feeding pipes 11 at different positions according to different reaction stages of the materials.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323153742.1U CN221271969U (en) | 2023-11-22 | 2023-11-22 | Double-screw extruder with multiple feed inlets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323153742.1U CN221271969U (en) | 2023-11-22 | 2023-11-22 | Double-screw extruder with multiple feed inlets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221271969U true CN221271969U (en) | 2024-07-05 |
Family
ID=91695830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323153742.1U Expired - Fee Related CN221271969U (en) | 2023-11-22 | 2023-11-22 | Double-screw extruder with multiple feed inlets |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221271969U (en) |
-
2023
- 2023-11-22 CN CN202323153742.1U patent/CN221271969U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20240705 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |