CN219686478U - Sectional type conveying shaft - Google Patents
Sectional type conveying shaft Download PDFInfo
- Publication number
- CN219686478U CN219686478U CN202321200412.0U CN202321200412U CN219686478U CN 219686478 U CN219686478 U CN 219686478U CN 202321200412 U CN202321200412 U CN 202321200412U CN 219686478 U CN219686478 U CN 219686478U
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- shaft body
- shaft
- pipeline
- conveying
- segmented
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- 239000000463 material Substances 0.000 claims abstract description 13
- 238000001125 extrusion Methods 0.000 claims description 13
- 230000010006 flight Effects 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 239000002994 raw material Substances 0.000 abstract description 11
- 238000000926 separation method Methods 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The utility model discloses a sectional type conveying shaft which comprises a shell and a conveying shaft arranged in the shell, wherein the shell consists of a first pipeline and a second pipeline with different diameters. The conveying shaft consists of a first shaft body and a second shaft body with different diameters, the first shaft body is positioned in the first pipeline, the second pipeline is positioned in the second shaft body, a plurality of spiral sheets are arranged on the first shaft body, and spiral blades are arranged on the second shaft body. A movable piece is arranged between the first shaft body and the second shaft body, the movable piece is sleeved on the first shaft body, and an elastic piece is arranged between the movable piece and the second shaft body. The sectional type conveying shaft can ensure the full mixing of raw materials through the sectional type mixing structure of the spiral sheet, the mixing area, the strip-shaped groove, the elastic piece, the material distributing piece and the spiral blade. Realize quick mixing under guaranteeing conveying shaft length, can improve mixing efficiency for the discharge time.
Description
Technical Field
The utility model relates to a plastic extrusion conveying shaft technology, in particular to a sectional conveying shaft.
Background
In the manufacture of plastic injection molded parts, an injection molding machine is required, and an important component in the injection molding machine is a screw conveyor shaft. Compared with the existing spiral conveying shaft, the spiral conveying shaft adopts a single spiral structure, and the raw materials can be well mixed only by a longer spiral conveying distance, but the full mixing of the raw materials is difficult to ensure due to the limitation of the length in some environments.
CN212579172U discloses a screw structure for extrusion granulation of low VOC plastics, wherein although a first conveying section, a kneading section, a second conveying section, a slotted mixing section, a first reverse conveying section, a third conveying section, a slotted mixing section, a second reverse conveying section, and a fourth conveying section are employed, in practice, there are few parts which keep raw materials capable of being sufficiently mixed, which instead increase the length of the whole apparatus, and there are many slots which are provided, and the extrusion pressure of the whole apparatus is easily affected.
Disclosure of Invention
In order to solve the defects in the prior art, the utility model provides a segmented conveying shaft.
The technical scheme of the utility model is realized as follows:
a sectional type conveying shaft comprises a shell and a conveying shaft arranged in the shell, and is characterized in that the shell consists of a first pipeline and a second pipeline with different diameters,
the conveying shaft consists of a first shaft body and a second shaft body with different diameters, the first shaft body is positioned in a first pipeline, the second pipeline is positioned in the second shaft body, a plurality of spiral sheets are arranged on the first shaft body, spiral blades are arranged on the second shaft body,
a movable piece is arranged between the first shaft body and the second shaft body, the movable piece is sleeved on the first shaft body, and an elastic piece is arranged between the movable piece and the second shaft body.
In such segmented conveying shafts of the present utility model, there is an extrusion gap between the flights and the flights.
In the segmented conveying shaft of the utility model, the movable part consists of a sliding sleeve and a separation disc, the diameter of the separation disc is matched with the inner diameter of the first pipeline, and the sliding sleeve is sleeved on the first shaft body.
In the segmented conveying shaft, a plurality of strip-shaped grooves are formed in the first shaft body, and extrusion holes matched with the strip-shaped grooves are formed in the sliding sleeve.
In the sectional type conveying shaft, a plurality of limiting ribs are arranged on the first shaft body, and limiting grooves matched with the limiting ribs are formed in the sliding sleeve.
In such a segmented conveying shaft of the present utility model, a portion of the first shaft body extends into a second conduit leaving a mixing zone between the second conduit and the second shaft body.
In the sectional conveying shaft, a material distributing piece is arranged on the second shaft body and connected with the second pipeline, a plurality of arc-shaped pieces are arranged in the middle of the material distributing piece, and a passing area is reserved between the arc-shaped pieces.
In such a segmented conveying shaft of the present utility model, the elastic member has a pitch H1 in a natural state and a pitch H2 in a compressed state.
The segmented conveying shaft has the following beneficial effects: the sectional type conveying shaft can ensure the full mixing of raw materials through the sectional type mixing structure of the spiral sheet, the mixing area, the strip-shaped groove, the elastic piece, the material distributing piece and the spiral blade. Realize quick mixing under guaranteeing conveying shaft length, can improve mixing efficiency for the discharge time.
Drawings
FIG. 1 is a schematic view of a segmented conveying shaft according to the present utility model;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;
FIG. 4 is a partial enlarged view at B in FIG. 3;
FIG. 5 is a schematic view of the operating state of FIG. 4;
FIG. 6 is a schematic view of the internal structure of FIG. 1;
fig. 7 is a partial enlarged view at C in fig. 6.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
As shown in fig. 1 to 7, such a segmented conveying shaft of the present utility model comprises a housing 1 and a conveying shaft 2 provided inside the housing 1, the housing 1 being composed of first and second pipes 3 and 4 having different diameters, the diameter of the first pipe 3 being smaller than the diameter of the second pipe 4. A first flow passage 5 is formed in the first pipe 3 and a second flow passage 6 is formed in the second pipe 4.
The conveying shaft 2 consists of a first shaft body 7 and a second shaft body 8 with different diameters, the diameter of the first shaft body 7 is smaller than that of the second shaft body 8, the first shaft body 7 is positioned in the first pipeline 3, and the second pipeline 4 is positioned in the second shaft body 8. The first shaft body 7 is provided with a plurality of spiral sheets 9, and the second shaft body 8 is provided with spiral blades 10. The first shaft body 7 is matched with the inner diameter of the first pipeline 3 through the spiral sheet 9, and the second shaft body 8 is matched with the inner diameter of the second pipeline 4 through the spiral blade 10.
Of course, the spiral direction of the spiral vane 10 may also be maintained opposite to the spiral direction of the spiral sheet 9.
An extrusion gap 11 exists between the spiral sheets 9 and the spiral sheets 9, and the spiral sheets 9 are arranged on the first shaft body 7 in a segmented mode. Raw materials are discharged from the extrusion gap 11 between the spiral sheets 9, and a larger flow rate can be formed due to the smaller interval of the extrusion gap 11, so that the raw materials are kept to be mixed faster.
A movable piece 12 is arranged between the first shaft body 7 and the second shaft body 8, the movable piece 12 consists of a sliding sleeve 13 and a separation disc 14, the diameter of the separation disc 14 is matched with the inner diameter of the first pipeline 3, and the sliding sleeve 13 is sleeved on the first shaft body 7. The movable piece 12 is sleeved on the first shaft body 7, an elastic piece 15 is arranged between the movable piece 12 and the second shaft body 8, the elastic piece 15 is a spring, one end of the elastic piece 15 is contacted with the second shaft body 8, and the other end is contacted with the isolation disc 14. The sliding sleeve 13 is located in the middle of the elastic member 15, and the diameter of the elastic member 15 is larger than the diameter of the sliding sleeve 13 but smaller than the diameter of the spacer disk 14.
The pitch of the elastic member 15 in the natural state is H1, and the pitch in the compressed state is H2, h1/2=h2.
The first shaft body 7 is provided with a plurality of limit ribs 16, the sliding sleeve 13 is provided with limit grooves 17 matched with the limit ribs 16, and the sliding sleeve 13 is kept to slide along the direction of the limit ribs 16, so that the sliding sleeve cannot rotate to deviate from the position.
A portion of the first shaft body 7 extends into the second conduit 4 leaving a mixing zone 18 between the second conduit 4 and the second shaft body 8.
The second shaft body 8 is provided with a material distributing piece 19, the material distributing piece 19 is connected with the second pipeline 4, a plurality of arc-shaped pieces 20 are arranged in the middle of the material distributing piece 19, and a passing area 21 is reserved between the arc-shaped pieces 20 and the arc-shaped pieces 20. The material distributing member 19 is composed of a first ring body 22, a second ring body 23 and an arc-shaped sheet 20 arranged between the first ring body 22 and the second ring body 23, wherein the first ring body 22 is connected with the second pipeline 4 and keeps the position of the first ring body and the second pipeline 4 unchanged, and the second shaft body 8 rotates in the middle of the second ring body 23 and does not drive the material distributing member 19 to rotate.
As shown in fig. 4 and 5, the first shaft body 7 is provided with a plurality of bar-shaped grooves 24, and the sliding sleeve 13 is provided with extrusion holes 25 matched with the bar-shaped grooves 24. When the raw material is pressed by the spiral piece 9, the movable piece 12 is pushed to compress the elastic piece 15, so that the elastic piece 15 is compressed, the original distance with the pitch of H1 is changed into the pitch with the pitch of H2, and the pitch is reduced. While the isolation disc 14 moves from the interior of the first flow channel 5 into the mixing zone 18, keeping the first flow channel 5 in communication with the mixing zone 18.
At this time, the movable member 12 moves toward the second shaft 8, the holding bar groove 24 is opened, and the raw material from the first flow path 5 is introduced into the bar groove 24 and then extruded from the extrusion hole 25 in the slide bush 13. By the pitch discharge on the elastic member 15, mixing can also be performed at the same time as the discharge. The raw materials extruded from the extrusion orifice 25 are then mixed again in the mixing zone 18. The material passes from the first flow channel 5 through the upper part into the mixing zone 18 and down into the bar 24.
And then on to the distributor 19 through the passage area 21 into the screw blade 10 for mixing.
The sectional type mixing structure of the spiral sheet 9, the mixing area 18, the strip-shaped groove 24, the elastic piece 15, the material distributing piece 19 and the spiral blade 10 can ensure the full mixing of raw materials, improve the mixing efficiency and accelerate the discharging time.
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, and alternatives falling within the spirit and scope of the utility model.
Claims (8)
1. A sectional type conveying shaft comprises a shell and a conveying shaft arranged in the shell, and is characterized in that the shell consists of a first pipeline and a second pipeline with different diameters,
the conveying shaft consists of a first shaft body and a second shaft body with different diameters, the first shaft body is positioned in a first pipeline, the second pipeline is positioned in the second shaft body, a plurality of spiral sheets are arranged on the first shaft body, spiral blades are arranged on the second shaft body,
a movable piece is arranged between the first shaft body and the second shaft body, the movable piece is sleeved on the first shaft body, and an elastic piece is arranged between the movable piece and the second shaft body.
2. The segmented conveying shaft of claim 1, wherein an extrusion gap exists between the flights and the flights.
3. The segmented delivery shaft of claim 1, wherein the moveable member comprises a sliding sleeve and a spacer disc, the spacer disc having a diameter that matches an inner diameter of the first conduit, the sliding sleeve being disposed over the first shaft body.
4. A segmented conveying shaft according to claim 3, wherein the first shaft body is provided with a plurality of strip-shaped grooves, and the sliding sleeve is provided with extrusion holes matched with the strip-shaped grooves.
5. A segmented conveying shaft according to claim 3, wherein the first shaft body is provided with a plurality of limiting ribs, and the sliding sleeve is provided with limiting grooves matched with the limiting ribs.
6. The segmented delivery shaft of claim 1, wherein a portion of the first shaft body extends into a second tube leaving a mixing region between the second tube and the second shaft body.
7. The segmented conveying shaft according to claim 1, wherein a material distributing piece is arranged on the second shaft body and connected with the second pipeline, a plurality of arc-shaped pieces are arranged in the middle of the material distributing piece, and a passing area is reserved between the arc-shaped pieces.
8. The segmented conveyor shaft of claim 1, wherein the spring member has a pitch H1 when in a natural state and a pitch H2 when in a compressed state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321200412.0U CN219686478U (en) | 2023-05-15 | 2023-05-15 | Sectional type conveying shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321200412.0U CN219686478U (en) | 2023-05-15 | 2023-05-15 | Sectional type conveying shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219686478U true CN219686478U (en) | 2023-09-15 |
Family
ID=87966879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321200412.0U Active CN219686478U (en) | 2023-05-15 | 2023-05-15 | Sectional type conveying shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219686478U (en) |
-
2023
- 2023-05-15 CN CN202321200412.0U patent/CN219686478U/en active Active
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