CN217803216U - Double-screw extruder is used in production of PVC insulating material - Google Patents
Double-screw extruder is used in production of PVC insulating material Download PDFInfo
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- CN217803216U CN217803216U CN202222083773.3U CN202222083773U CN217803216U CN 217803216 U CN217803216 U CN 217803216U CN 202222083773 U CN202222083773 U CN 202222083773U CN 217803216 U CN217803216 U CN 217803216U
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Abstract
The application discloses PVC is twin-screw extruder for insulating material production includes: a frame body; the device comprises a first cylinder, a second cylinder and a third cylinder, wherein an installation cavity is formed inside the first cylinder, and a first discharge hole communicated with the installation cavity is formed in the lower end of the first cylinder; the second cylinder is internally provided with a material storage cavity, the second cylinder is provided with a material leakage port communicated with the material storage cavity, and the second cylinder can slide between the first station and the second station; when the second cylinder is positioned at the first station, the material leakage port is abutted against the inner wall of the first cylinder; when the second cylinder is positioned at the second station, the material leakage opening is communicated with the mounting cavity; the stirring shaft is provided with a plurality of groups of stirring paddles; the extruding component comprises an extruding box which forms an extruding cavity, the extruding box is respectively provided with a material inlet and a second material outlet of the extruding cavity along two ends in the horizontal direction, and two groups of screw rods which are mutually arranged and can rotate along the axis of the screw rods are arranged in the extruding box and are used for conveying the insulating material of the material inlet to the second material outlet.
Description
Technical Field
The utility model relates to the field of moulding plastics, concretely relates to double screw extruder is used in production of PVC insulating material.
Background
With the development of technology, the extrusion molding process is suitable for all polymer materials, almost all thermoplastics can be molded, and the extrusion molding process can also be used for partial thermosetting plastics. In addition, extrusion processes are also commonly used for coloring, compounding, etc. of plastics. The extrusion equipment comprises two categories of screw extruders and plunger extruders, wherein the screw extruders are divided into single-screw extruders and multi-screw extruders, and the double-screw extruders in the multi-screw extruders are developed fastest in recent years and are applied widely.
However, in the prior art, the phenomenon of non-uniformity often occurs in the mixing process of an extruder, and the subsequent forming quality is influenced.
Disclosure of Invention
In view of the above-mentioned drawbacks or deficiencies in the prior art, it would be desirable to provide a twin-screw extruder for PVC insulation production.
In a first aspect, a double-screw extruder for producing PVC insulating materials comprises:
a frame body;
the first cylinder is mounted on the frame body, a mounting cavity is formed in the first cylinder, and a first discharge hole communicated with the mounting cavity is formed in the lower end of the first cylinder;
the second cylinder is arranged on the frame body, a material storage cavity is arranged in the second cylinder, a material leakage port communicated with the material storage cavity is formed in the second cylinder, and the second cylinder can slide between the first station and the second station along the vertical direction; when the second cylinder is positioned at the first station, the material leakage port is abutted against the inner wall of the first cylinder; when the second cylinder is positioned at a second station, the material leakage port is communicated with the mounting cavity;
the stirring shaft can be rotatably arranged in the material storage cavity along the axis of the stirring shaft, and a plurality of groups of stirring paddles are arranged on the stirring shaft;
the material extruding component is mounted on the frame body and comprises an extruding box, an extruding cavity is formed in the hollow extruding box, the extruding box is respectively provided with a feed inlet and a second discharge outlet which are communicated with the extruding cavity along the two ends of the horizontal direction, the feed inlet is aligned with the first discharge outlet along the vertical direction, and two sets of screw rods which are mutually arranged and can rotate along the axis of the screw rods are arranged in the extruding box and used for conveying the insulating material of the feed inlet to the second discharge outlet.
According to the technical scheme that this application embodiment provided, be equipped with the cylinder on the support body, the cylinder output with the second barrel is connected, is used for the drive the second barrel at first station with slide between the second station.
According to the technical scheme that this application embodiment provided, be equipped with agitator motor on the second barrel, the agitator motor output with the (mixing) shaft transmission is connected, is used for the drive the (mixing) shaft rotates.
According to the technical scheme that this application embodiment provided, first barrel includes end-to-end connection's erection section and the section of converging, the erection section inner wall offsets with second barrel outer wall, the section of converging is the toper.
According to the technical scheme provided by the embodiment of the application, the extruding component comprises an extruding motor, and the output end of the extruding motor is in transmission connection with the screw rod and used for driving the screw rod to rotate.
The invention has the beneficial effects that: the double-screw extruder for producing the PVC insulating material comprises a frame body, wherein a first cylinder body, a second sleeve, a stirring shaft and a material extruding assembly are arranged on the frame body, an installation cavity is formed in the first cylinder body, and a first discharge hole communicated with the installation cavity is formed in the lower end of the first cylinder body; a material storage cavity is arranged in the second cylinder, a material leakage port communicated with the material storage cavity is arranged in the second cylinder, and the second cylinder can slide between a first station and a second station along the vertical direction; when the second cylinder is positioned at the first station, the material leakage port is abutted against the inner wall of the first cylinder; when the second cylinder is positioned at a second station, the material leakage port is communicated with the mounting cavity; the stirring shaft can be rotatably arranged in the material storage cavity along the axis of the stirring shaft, and a plurality of groups of stirring paddles are arranged on the stirring shaft; the material extruding component comprises an extruding box, the extruding box is hollow inside to form an extruding cavity, the extruding box is respectively provided with a feed inlet and a second discharge outlet which are communicated with the extruding cavity along the two ends of the horizontal direction, the feed inlet is aligned with the first discharge outlet along the vertical direction, and two groups of screw rods which are mutually arranged and can rotate along the axis of the screw rods are arranged in the extruding box and are used for conveying the insulating material of the feed inlet to the second discharge outlet.
When insulating material is pre-stirred as required, the second sleeve is in first station, the drain hole with first barrel inner wall is supported, and the (mixing) shaft is rotatory, and is right insulating material in the second sleeve stirs, stirs the completion back, and the second sleeve slides to the second station, this moment the drain hole with the installation cavity is linked together, and insulating material in the storage cavity gets into through drain hole, installation cavity and first discharge gate in proper order the feed inlet of extrusion box is rotatory along self axis through two sets of screws, has the feed inlet stirring to carry to the second discharge gate with insulating material, gets into next process.
Through stir in advance before getting into crowded material subassembly to insulating material, can improve stirring efficiency, prevent that the mixed in-process of extruder from appearing inhomogeneous phenomenon, improve the product and go out the yield.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
FIG. 1 is a schematic view of an embodiment of a twin screw extruder for the production of PVC insulation according to the present application;
FIG. 2 is a cross-sectional view of a first barrel and a second barrel of a twin-screw extruder for PVC insulation production according to the present application;
FIG. 3 is a schematic view of the extruder assembly of a twin screw extruder for PVC insulation production according to the present application;
1. a frame body; 2. a first cylinder; 20. an installation section; 21. a bus bar section; 3. a second cylinder; 30. a stirring shaft; 31. a stirring paddle; 32. filling the opening; 300. a material leakage port; 4. an extrusion box; 40. a feed inlet; 41. a second discharge port; 5. a material extruding motor; 50. a driving gear; 6. a first screw; 60. a first driven gear; 7. a second screw; 70. a second driven gear; 8. a cylinder; 9. a stirring motor.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example 1
Referring to fig. 1 and 2, a twin-screw extruder for producing PVC insulation, comprising: a frame body 1; the first cylinder 2 is mounted on the frame body 1, a mounting cavity is formed in the first cylinder 2, and a first discharge hole communicated with the mounting cavity is formed in the lower end of the first cylinder 2; the second cylinder 3 is arranged on the frame body 1, a material storage cavity is arranged in the second cylinder 3, the second cylinder 3 is provided with a material leakage opening 300 communicated with the material storage cavity, and the second cylinder 3 can slide between the first station and the second station along the vertical direction; when the second cylinder 3 is located at the first station, the material leakage port 300 abuts against the inner wall of the first cylinder 2; when the second cylinder 3 is located at the second station, the material leakage port 300 is communicated with the installation cavity; the stirring shaft 30 can be rotatably arranged in the material storage cavity along the axis of the stirring shaft 30, and a plurality of groups of stirring paddles 31 are arranged on the stirring shaft 30; the extrusion assembly is installed on the frame body 1 and comprises an extrusion box 4, the extrusion box 4 is hollow inside to form an extrusion cavity, the extrusion box 4 is respectively provided with a feed inlet 40 and a second discharge hole 41 which are communicated with the extrusion cavity along the two ends of the horizontal direction, the feed inlet 40 is aligned with the first discharge hole along the vertical direction, two sets of screws which are mutually arranged and can rotate along the axis of the screws are arranged in the extrusion box 4, and the screws are used for conveying the insulating material of the feed inlet 40 to the second discharge hole 41.
Wherein, a brake wheel is arranged below the frame body 1, which is convenient for the sliding and fixing of the double-screw extruder. And a filling opening 32 communicated with the storage cavity is arranged above the second cylinder 3 and used for filling insulating materials into the storage cavity.
The working principle is as follows: when needs are stirred in advance to insulating material, the second sleeve is in first station, drain hole 300 with 2 inner walls of first barrel offset, (mixing) shaft 30 is rotatory, right insulating material in the second sleeve stirs, stirs the back, and the second sleeve slides to the second station, this moment drain hole 300 with the installation cavity is linked together, and insulating material in the storage cavity gets into through drain hole 300, installation cavity and first discharge gate in proper order the feed inlet 40 of extrusion box 4 is rotatory along self axis through two sets of screws, has the stirring of feed inlet 40 to carry to second discharge gate 41 with insulating material, gets into next process. Through stir in advance before getting into crowded material subassembly to insulating material, can improve stirring efficiency, prevent that the mixed in-process of extruder from appearing inhomogeneous phenomenon, improve the product and go out the yield.
Further, a cylinder 8 is arranged on the frame body 1, and an output end of the cylinder 8 is connected with the second cylinder 3 and used for driving the second cylinder 3 to slide between the first station and the second station. And a stirring motor 9 is arranged on the second barrel 3, and the output end of the stirring motor 9 is in transmission connection with the stirring shaft 30 and is used for driving the stirring shaft 30 to rotate.
Wherein, the cylinder 8 fixed mounting be in on the support body 1, 8 output ends of cylinder are connected with agitator motor 9, agitator motor 9 output with the transmission shaft is connected.
Further, first barrel 2 includes end to end's erection segment 20 and the section 21 of converging, the 20 inner walls of erection segment offset with the 3 outer walls of second barrel, the section 21 of converging is the toper.
The inner wall of the mounting section 20 is matched with the outer wall of the second cylinder 3 in shape, and the confluence section 21 is tapered in shape with a large upper part and a small lower part, so that the insulating material flowing out from the leakage port 300 can be gathered to the first discharge port through the inner wall of the confluence section 21.
The working principle is as follows: when the second cylinder 3 is positioned at the first station, the material leakage port 300 is blocked by the inner wall of the mounting section 20, so that the material storage cavity is in a closed state, and pre-stirring is convenient; when second barrel 3 was located the second station, the drain hole 300 exposes outside, is linked together with the installation cavity, and insulating material is flowed out by drain hole 300, drops at the 21 inner walls of convergent flow section, under the action of gravity, flows out by first discharge gate.
Further, the material extruding component comprises an extruding motor 5, and the output end of the extruding motor 5 is in transmission connection with the screw rod and is used for driving the screw rod to rotate.
The two groups of screws are respectively a first screw 6 and a second screw 7 which are arranged in parallel, a first driven gear 60 is arranged at one end of the first screw 6, a second driven gear 70 is arranged at one end of the second screw 7, and the first driven gear 60 is meshed with the second driven gear 70. The output end of the extruding motor 5 is provided with a driving gear 50, and the driving gear 50 is meshed with the second driven gear.
The working principle is as follows: the extruding motor 5 is started to drive the driving gear 50 to rotate, and drives the first driven gear 60 and the second driven gear 70 to rotate through gear engagement, so as to drive the first screw rod 6 and the second screw rod 7 to rotate along opposite rotation directions, and the insulating material can be conveyed to the second discharge hole 41 from the feed port 40.
The foregoing description is only exemplary of the preferred embodiments of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (5)
1. The utility model provides a PVC is twin-screw extruder for insulating material production which characterized in that includes:
a frame body (1);
the first cylinder (2) is mounted on the frame body (1), a mounting cavity is formed in the first cylinder (2), and a first discharge hole communicated with the mounting cavity is formed in the lower end of the first cylinder (2);
the second cylinder (3) is mounted on the frame body (1), a material storage cavity is arranged inside the second cylinder (3), the second cylinder (3) is provided with a material leakage opening (300) communicated with the material storage cavity, and the second cylinder (3) can slide between the first station and the second station along the vertical direction; when the second cylinder (3) is positioned at the first station, the material leakage port (300) is abutted against the inner wall of the first cylinder (2); when the second cylinder (3) is located at a second station, the material leakage port (300) is communicated with the mounting cavity;
the stirring shaft (30) can be rotatably arranged in the material storage cavity along the axis of the stirring shaft (30), and a plurality of groups of stirring paddles (31) are arranged on the stirring shaft (30);
the extrusion subassembly is installed on support body (1), the extrusion subassembly includes extrusion box (4), the inside cavity of extrusion box (4) forms the extrusion chamber, extrusion box (4) along the horizontal direction both ends be equipped with respectively all with feed inlet (40) and second discharge gate (41) that the extrusion chamber is linked together, feed inlet (40) align along vertical direction with first discharge gate, be equipped with two sets of mutual and can follow the rotatory screw rod of self axis in extrusion box (4) for carry the insulating material of feed inlet (40) to second discharge gate (41).
2. The twin-screw extruder for producing the PVC insulating material as claimed in claim 1, wherein: be equipped with cylinder (8) on support body (1), cylinder (8) output with second barrel (3) are connected, are used for the drive second barrel (3) first station with slide between the second station.
3. The twin-screw extruder for producing the PVC insulation material as claimed in claim 2, is characterized in that: and a stirring motor (9) is arranged on the second barrel (3), and the output end of the stirring motor (9) is in transmission connection with the stirring shaft (30) and is used for driving the stirring shaft (30) to rotate.
4. The twin-screw extruder for producing PVC insulation material as claimed in claim 3, is characterized in that: first barrel (2) are including end to end's erection segment (20) and confluence section (21), erection segment (20) inner wall offsets with second barrel (3) outer wall, confluence section (21) is the toper.
5. The twin-screw extruder for PVC insulation material production according to claim 4, characterized in that: the extruding component comprises an extruding motor (5), and the output end of the extruding motor (5) is in transmission connection with the screw rod and is used for driving the screw rod to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222083773.3U CN217803216U (en) | 2022-08-09 | 2022-08-09 | Double-screw extruder is used in production of PVC insulating material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222083773.3U CN217803216U (en) | 2022-08-09 | 2022-08-09 | Double-screw extruder is used in production of PVC insulating material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217803216U true CN217803216U (en) | 2022-11-15 |
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ID=83974244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222083773.3U Active CN217803216U (en) | 2022-08-09 | 2022-08-09 | Double-screw extruder is used in production of PVC insulating material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217803216U (en) |
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2022
- 2022-08-09 CN CN202222083773.3U patent/CN217803216U/en active Active
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