CN210026176U - Double-screw extrusion device of injection molding machine - Google Patents
Double-screw extrusion device of injection molding machine Download PDFInfo
- Publication number
- CN210026176U CN210026176U CN201920876799.9U CN201920876799U CN210026176U CN 210026176 U CN210026176 U CN 210026176U CN 201920876799 U CN201920876799 U CN 201920876799U CN 210026176 U CN210026176 U CN 210026176U
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- extrusion screw
- extrusion
- screw
- sleeve
- injection molding
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- 238000001125 extrusion Methods 0.000 title claims abstract description 93
- 238000001746 injection moulding Methods 0.000 title claims abstract description 13
- 239000000779 smoke Substances 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 12
- 229920003023 plastic Polymers 0.000 abstract description 6
- 239000004033 plastic Substances 0.000 abstract description 6
- 238000012545 processing Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract 1
- 238000007599 discharging Methods 0.000 description 5
- 239000002912 waste gas Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Injection Moulding Of Plastics Or The Like (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model provides an injection molding machine double screw extrusion device belongs to plastics processing technology field. The extrusion device comprises a sleeve, a first extrusion screw and a second extrusion screw, wherein one of the first extrusion screws is rotatably connected in the sleeve, the first extrusion screw is of a hollow structure, the second extrusion screw is rotatably connected in the first extrusion screw, a feeding port located at one end of the first extrusion screw is formed in the sleeve, a discharge port and the feeding port of the second extrusion screw are located at the same end of the first extrusion screw, the first extrusion screw and the second extrusion screw are respectively driven by a driving motor, and a feeding port communicated with an inner cavity of the first extrusion screw and an inner cavity of the sleeve is formed in the first extrusion screw far away from one end of the feeding port. The utility model has the advantages of can improve heat utilization.
Description
Technical Field
The utility model belongs to the technical field of plastic processing, a double screw extrusion device of injection molding machine is related to.
Background
The injection molding machine is a common plastic processing device, is used for melting, mixing and extruding plastics onto a corresponding die, and cooling the plastics to form a plastic product with a specific shape, and has the following defects in the prior injection molding machine:
in both a single screw and a traditional side-by-side double screw structure, materials enter from one end and are extruded from the other end, so that the blanking position and the extrusion position are far away, and the two positions needing electronic monitoring are far away, which is not beneficial to the arrangement and design of power supply devices; the existing extruder has higher requirement on the heat preservation of raw materials, and the energy loss caused by the heat dissipation of an extrusion screw is larger, so that the energy waste is caused; more waste gas is generated in the process of extruding the raw materials, and the workshop environment is influenced by the waste gas.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an injection molding machine double screw extrusion device to the above-mentioned problem that prior art exists, the utility model aims to solve the technical problem how make the heat scatter and disappear still less.
The purpose of the utility model can be realized by the following technical proposal: the utility model provides an injection molding machine twin-screw extrusion device, its characterized in that, this extrusion device include the sleeve, extrude screw rod one and extrude screw rod two, it rotates to connect in the sleeve to extrude screw rod one, it is hollow structure to extrude screw rod one, it rotates to connect in extruding screw rod one to extrude screw rod two, set up the pan feeding mouth that is located and extrudes screw rod one end on the sleeve, the discharge gate and the pan feeding mouth that extrude screw rod two are located and extrude screw rod one with one end, extrude screw rod one and extrude screw rod two and drive through a driving motor respectively, the feed through mouth that has intercommunication and extrude screw rod inner chamber and sleeve inner chamber on the extrusion screw rod one of the one end of keeping away from the pan feeding mouth.
Because the second extrusion screw is responsible for discharging and is positioned in the first extrusion screw, the materials in the first extrusion screw and the materials in the second extrusion screw can be heated mutually, the heat of the materials between the second extrusion screw and the first extrusion screw is more difficult to dissipate to the outside, and the utilization rate of the heat is higher.
The material enters the sleeve from the feeding port, is extruded through the hot melting of the first extrusion screw rod, enters the first extrusion screw rod from the feeding port, is extruded by the two pairs of extrusion screw rods, and is discharged from the discharging port.
The feeding port and the discharging port are located at the same end of the sleeve, so that the setting and the design of the power supply device in the two steps can be conveniently controlled, such as the setting of an observation device and a monitoring device.
The first extrusion screw and the second extrusion screw are respectively controlled by a driving motor, and the rotating speeds of the first extrusion screw and the second extrusion screw can be respectively controlled, so that parameters such as extrusion pressure, retention time and the like can be adjusted and set in a wider range.
In foretell injection molding machine twin-screw extrusion device, the fixed collection petticoat pipe that is located the discharge gate department of extruding screw rod two that is provided with on the sleeve, extrude screw rod one and go up the fixed impeller of bleeding that is located collection petticoat pipe that is provided with, collection petticoat pipe has on the petticoat pipe.
A certain amount of smoke can be formed at the discharge port, the smoke is the source of the smoke of the extruder, and at the position, the smoke collecting structure for the discharge port is formed by the rotation of the first extruding screw rod, so that the residual amount of the smoke in a workshop can be reduced to a great extent, and the difficulty of collecting waste gas in the workshop is reduced.
In the above injection molding machine twin-screw extrusion device, the driving motor for driving the first extrusion screw to rotate and the driving motor for driving the second extrusion screw to rotate are located at the same side of the sleeve, and the shells of the two driving motors are fixedly connected with the sleeve.
Drawings
Fig. 1 is a schematic view of the structure of the present extrusion apparatus.
In the figure, 1, a sleeve; 2. extruding a first screw rod; 3. extruding a second screw; 4. a feeding port; 5. a discharge port; 6. a material inlet is formed; 7. a smoke collecting hood; 8. an air exhaust impeller; 9. a smoke exhaust pipe.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1, the extrusion device comprises a sleeve 1, a first extrusion screw 2 and a second extrusion screw 3, the first extrusion screw 2 is rotatably connected in the sleeve 1, the first extrusion screw 2 is of a hollow structure, the second extrusion screw 3 is rotatably connected in the first extrusion screw 2, a feeding port 4 located at one end of the first extrusion screw 2 is formed in the sleeve 1, a discharge port 5 and the feeding port 4 of the second extrusion screw 3 are located at the same end of the first extrusion screw 2, the first extrusion screw 2 and the second extrusion screw 3 are respectively driven by a driving motor, and a feeding port 6 communicating the inner cavity of the first extrusion screw 2 with the inner cavity of the sleeve 1 is formed in the first extrusion screw 2 at one end far away from the feeding port 4.
Because the second extrusion screw 3 is responsible for discharging and is positioned in the first extrusion screw 2, the materials in the first extrusion screw 2 and the materials in the second extrusion screw 3 can be heated mutually, the heat of the materials between the second extrusion screw 3 and the first extrusion screw 2 is more difficult to dissipate to the outside, and the utilization rate of the heat is higher.
The material gets into in the sleeve 1 from pan feeding mouth 4, after extruding screw rod 2's hot melt, gets into the inside of extruding screw rod 2 from logical material mouth 6, extrudees it by extruding screw rod two 3 and then discharges by discharge gate 5.
The feeding port 4 and the discharging port 5 are located at the same end of the sleeve 1, so that the setting and design of the power supply device in the two steps can be conveniently controlled, such as the setting of an observation device and a monitoring device.
The first extrusion screw 2 and the second extrusion screw 3 are respectively controlled by a driving motor, and the rotating speeds of the first extrusion screw and the second extrusion screw can be respectively controlled, so that parameters such as extrusion pressure, retention time and the like can be adjusted and set in a wider range.
A smoke collecting cover 7 positioned at a discharge port 5 of the second extrusion screw 3 is fixedly arranged on the sleeve 1, an air exhaust impeller 8 positioned in the smoke collecting cover 7 is fixedly arranged on the first extrusion screw 2, and a smoke exhaust pipe 9 is arranged on the smoke collecting cover 7. A certain amount of smoke can be formed at the discharge port 5, the smoke is a source of the smoke of the extruder, a smoke collecting structure for the discharge port 5 is formed by the rotation of the extrusion screw rod 2 at the position, the smoke reserving amount in a workshop can be greatly reduced, and the difficulty of collecting waste gas in the workshop is reduced.
The driving motor for driving the first extrusion screw rod 2 to rotate and the driving motor for driving the second extrusion screw rod 3 to rotate are positioned on the same side of the sleeve 1, and the shells of the two driving motors are fixedly connected with the sleeve 1.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (3)
1. A double-screw extrusion device of an injection molding machine is characterized by comprising a sleeve (1), a first extrusion screw (2) and a second extrusion screw (3), the first extrusion screw (2) is rotatably connected in the sleeve (1), the first extrusion screw (2) is of a hollow structure, the second extrusion screw (3) is rotatably connected in the first extrusion screw (2), the sleeve (1) is provided with a feeding port (4) positioned at one end of the first extrusion screw (2), one end of the first extrusion screw rod (2) is provided with a discharge port (5), the discharge port (5) and the feeding port (4) are positioned at the same end of the first extrusion screw rod (2), the first extrusion screw (2) and the second extrusion screw (3) are respectively driven by a driving motor, and the first extrusion screw (2) far away from one end of the feeding port (4) is provided with a material through port (6) communicated with the inner cavity of the first extrusion screw (2) and the inner cavity of the sleeve (1).
2. The twin-screw extrusion device of the injection molding machine is characterized in that a smoke collecting hood (7) located at the discharge port (5) of the second extrusion screw (3) is fixedly arranged on the sleeve (1), a suction impeller (8) located in the smoke collecting hood (7) is fixedly arranged on the first extrusion screw (2), and a smoke exhaust pipe (9) is arranged on the smoke collecting hood (7).
3. The twin-screw extrusion device of the injection molding machine as claimed in claim 2, wherein the driving motor for driving the first extrusion screw (2) to rotate and the driving motor for driving the second extrusion screw (3) to rotate are located on the same side of the sleeve (1), and the housings of both the driving motors are fixedly connected with the sleeve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920876799.9U CN210026176U (en) | 2019-06-12 | 2019-06-12 | Double-screw extrusion device of injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920876799.9U CN210026176U (en) | 2019-06-12 | 2019-06-12 | Double-screw extrusion device of injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210026176U true CN210026176U (en) | 2020-02-07 |
Family
ID=69347724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920876799.9U Active CN210026176U (en) | 2019-06-12 | 2019-06-12 | Double-screw extrusion device of injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210026176U (en) |
-
2019
- 2019-06-12 CN CN201920876799.9U patent/CN210026176U/en active Active
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