CN221136828U - Forced feeding device of extruder - Google Patents
Forced feeding device of extruder Download PDFInfo
- Publication number
- CN221136828U CN221136828U CN202323054865.XU CN202323054865U CN221136828U CN 221136828 U CN221136828 U CN 221136828U CN 202323054865 U CN202323054865 U CN 202323054865U CN 221136828 U CN221136828 U CN 221136828U
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- Prior art keywords
- feeding
- hole
- double
- extruder
- barrel
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- 238000001125 extrusion Methods 0.000 claims abstract description 35
- 230000007704 transition Effects 0.000 claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 abstract description 25
- 239000000843 powder Substances 0.000 abstract description 6
- 235000012438 extruded product Nutrition 0.000 abstract description 3
- 239000011295 pitch Substances 0.000 description 34
- 239000000463 material Substances 0.000 description 7
- 238000007906 compression Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to the technical field of extruders and discloses a forced feeding device of an extruder, which comprises an extruder barrel, wherein a transition body, a forced feeding barrel and a feeding barrel are fixed on the extruder barrel; the transition body, the forced feeding cylinder and the feeding cylinder are internally provided with a double-hole feeding channel, two parallel feeding screws are arranged in the double-hole feeding channel, and the pitch of the feeding screws is reduced in steps; the lower end of the transition body is provided with a blanking port of a double-hole feeding channel communicated with the barrel of the extruder and the transition body. The double screws arranged through the variable pitch can improve the feeding capacity of the screws, meanwhile, can forcedly extrude and forcedly convey the mixture with high powder content into the screw extrusion cylinder, and can effectively improve the extrusion efficiency of the extruder and the quality stability of extruded products.
Description
Technical Field
The utility model relates to the technical field of extruders, in particular to a forced feeding device of an extruder.
Background
The extruder has the advantages of continuous production, direct extrusion molding, good mixing effect, low cost, easy realization of online compounding and the like. For processed powder mixed products, in which the powder content is high, and the powder is light but large, such as a mixture of graphene and polyethylene, the feeding capacity of the extruder is greatly reduced, thereby affecting the extrusion efficiency and extrusion quality. It is therefore desirable to add a forced feeder to compress the material for forced delivery into the extruder screw extruder.
Disclosure of utility model
The utility model aims to provide a forced feeding device of an extruder, which can improve the feeding capacity of a screw through a double screw arranged in a variable pitch manner, and can forcedly extrude and forcedly convey a mixture with high powder content into a screw extrusion cylinder body, so that the extrusion efficiency of the extruder and the quality stability of an extruded product can be effectively improved.
The technical aim of the utility model is realized by the following technical scheme:
The forced feeding device of the extruder comprises an extruder barrel, wherein a transition body is fixed on the extruder barrel, the front end of the transition body is fixedly connected with a forced feeding barrel, and the front end of the forced feeding barrel is fixedly provided with a feeding barrel;
The transition body, the forced feeding cylinder and the feeding cylinder are internally provided with a double-hole feeding channel, and two feeding screws which are arranged in parallel are arranged in the double-hole feeding channel; and a blanking port of a double-hole feeding channel communicated with the extruder barrel and the transition body is formed at the lower end of the transition body. The front ends of the two feeding screws are provided with driving mechanisms for driving the two feeding screws to synchronously rotate.
Through the technical scheme, the external charging barrel is connected with the feeding barrel, the mixture in the external charging barrel enters the feeding barrel, then the mixture is fed, extruded and conveyed into the double-hole feeding channel of the transition body through the double-feeding screw rod, then the mixture after extrusion and compression automatically falls into the extruding barrel through the blanking port, and the second screw rod in the extruding barrel conveys the mixture outwards.
The utility model is further arranged to: the double-hole feeding channel comprises two parallel round holes, and the two round holes are partially overlapped; the outer diameter of the feeding screw rod is in clearance fit with the inner diameter of the round hole.
The two round holes are overlapped to show that the two feeding screws are mutually inserted and sleeved together, so that the conveying extrusion capacity of the mixed material can be improved.
The utility model is further arranged to: the pitch of the feeding screw is gradually reduced from front to back.
Through the technical scheme, the screw pitch of the feeding screw is gradually reduced, so that the mixture can be extruded.
The utility model is further arranged to: the feeding screw comprises a plurality of sections of large-pitch sections, a plurality of sections of medium-pitch sections and a plurality of sections of small-pitch sections which are sequentially arranged from front to back.
A feed inlet is formed at the upper end of the feed cylinder; a blanking connecting plate is fixed on the upper end surface of the feed inlet, and a blanking opening communicated with the feed inlet is formed on the blanking connecting plate;
The large-pitch section is located right below the feed inlet.
Through the technical scheme, the mixture in the external charging barrel enters the large-pitch sections of the two feeding screws through the discharging opening and the feeding opening, and the pitches of the large-pitch sections are large so as to be fed more; then through the rotation of feed screw, the mixture loops through big pitch section, medium pitch section and little pitch section, because the pitch is less and less to can extrude the mixture, make it more closely knit, in the relatively closely knit mixture after the extrusion enters into the extruder barrel at last, make things convenient for the extruder to eat the material, also can further improve the material ability of eating of extruder.
The utility model is further arranged to: the extruder barrel is provided with a double-hole extrusion channel and a rectangular through hole communicated with the blanking port and the double-hole extrusion channel; the rectangular through hole is positioned below the small-pitch section;
The double-hole extrusion channel and the double-hole feeding channel are vertically arranged;
The center height of the double-hole extrusion channel is lower than that of the double-hole feeding channel.
Through the technical scheme, when the mixture moves to the position above the rectangular through hole along with the rotation of the feeding screw, the mixture automatically falls down and passes through the rectangular channel to automatically enter the double-hole extrusion channel; meanwhile, the double-hole extrusion channel is positioned below the double-hole feeding channel, and the central heights of the double-hole extrusion channel and the double-hole feeding channel are not in the same plane and have height difference, so that the feeding capacity of the extruder can be further improved.
The beneficial effects of the utility model are as follows:
Compared with the prior art, the double screws with variable pitch can improve the feeding capacity of the screws, meanwhile, can forcedly extrude and forcedly convey the mixture with high powder content into the screw extrusion cylinder, and can effectively improve the extrusion efficiency of the extruder and the quality stability of the extruded product;
The feeding capacity of the screw extruder can be further increased by vertically staggering the double-hole feeding channel and the double-hole extrusion channel.
Drawings
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 cross-sectional view of FIG. 2 taken about A-A;
FIG. 4 is a cross-sectional view of FIG. 2 taken about B-B;
FIG. 5 is a schematic view of the structure of the feed screw of the present utility model;
fig. 6 is an exploded view of the present utility model.
Reference numerals: 10. an extruder barrel; 101. a dual hole extrusion channel; 102. rectangular through holes;
20. A transition body; 200. a double hole feeding channel; 2001. a round hole; 201. a blanking port;
30. A forced feeding cylinder;
40. a feed cylinder; 401. a feed inlet;
50. a feed screw; 501. a large pitch section; 502. a medium pitch end; 503. a small pitch section;
60. a blanking connecting plate; 601. and a feed opening.
Detailed Description
The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.
The present utility model is described below with reference to fig. 1 to 6:
the forced feeding device of the extruder comprises an extruder barrel 10, wherein a transition body 20 is fixed on the extruder barrel 10, a forced feeding barrel 30 is fixedly connected to the front end of the transition body 20, and a feeding barrel 40 is fixed to the front end of the forced feeding barrel 30;
The transition body 20, the forced feeding cylinder 30 and the feeding cylinder body 40 are internally provided with a double-hole feeding channel 200, and two parallel feeding screws 50 are arranged in the double-hole feeding channel 200; the lower end of the transition body 20 is formed with a blanking port 201 of a double-hole feeding channel 200 which is communicated with the extruder barrel 10 and the transition body 20. The front ends of the two feeding screws 50 are provided with a driving mechanism for driving the two feeding screws to synchronously rotate.
The external charging barrel is connected with the feeding barrel, the mixture in the external charging barrel enters the feeding barrel, then is fed and extruded by the double feeding screws and is conveyed into the double-hole feeding channel of the transition body 20, and then the mixture after extrusion and compression automatically falls into the extruding barrel through the blanking port, and the second screw in the extruding barrel conveys the mixture outwards.
The double-hole feeding channel 200 comprises two parallel round holes 2001, and the two round holes 2001 are partially overlapped; the outer diameter of the feeding screw 50 is in clearance fit with the inner diameter of the round hole.
The two round holes are overlapped to show that the two feeding screws are mutually inserted and sleeved together, so that the conveying extrusion capacity of the mixed material can be improved.
The feed screw 50 is a variable pitch screw, and the pitch of the feed screw 50 is gradually reduced from front to back.
The pitch of the feed screw becomes smaller gradually so as to extrude the mixture.
The feed screw 50 comprises a plurality of sections of large pitch sections 501, a plurality of sections of medium pitch sections 502 and a plurality of sections of small pitch sections 503 which are arranged in sequence from front to back.
A feed inlet 401 is formed at the upper end of the feed cylinder 40; a blanking connecting plate 60 is fixed on the upper end surface of the feed inlet 401, and a blanking opening 601 communicated with the feed inlet 401 is formed on the blanking connecting plate 60;
the large pitch section 501 is located directly below the feed inlet 401.
The mixture in the external charging barrel enters the large-pitch sections of the two feeding screws through the discharging opening and the feeding opening, and the pitches of the large-pitch sections are large, so that more feeding can be performed; then through the rotation of feed screw, the mixture loops through big pitch section, medium pitch section and little pitch section, because the pitch is less and less to can extrude the mixture, make it more closely knit, in the relatively closely knit mixture after the extrusion enters into the extruder barrel at last, make things convenient for the extruder to eat the material, also can further improve the material ability of eating of extruder.
The extruder barrel 10 is formed with a double-hole extrusion channel 101 and a rectangular through hole 102 which is communicated with a blanking port 201 and the double-hole extrusion channel 101; the rectangular through hole 102 is located below the small pitch section 503;
The double-hole extrusion channel 101 and the double-hole feeding channel 200 are vertically arranged;
The center height of the twin-hole extrusion channel 101 is lower than the center height of the twin-hole feeding channel 200.
When the mixture moves to the upper part of the rectangular through hole along with the rotation of the feeding screw, the mixture automatically falls down and passes through the rectangular channel to automatically enter the double-hole extrusion channel; meanwhile, the double-hole extrusion channel is positioned below the double-hole feeding channel, and the central heights of the double-hole extrusion channel and the double-hole feeding channel are not in the same plane and have height difference, so that the feeding capacity of the extruder can be further improved.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (6)
1. Forced feeding device of extruder, including extruder barrel (10), its characterized in that: a transition body (20) is fixed on the extruder barrel (10), the front end of the transition body (20) is fixedly connected with a forced feeding barrel (30), and the front end of the forced feeding barrel (30) is fixedly provided with a feeding barrel (40);
The transition body (20), the forced feeding cylinder (30) and the feeding cylinder body (40) are internally provided with a double-hole feeding channel (200), and two feeding screws (50) which are arranged in parallel are arranged in the double-hole feeding channel (200); the lower end of the transition body (20) is provided with a blanking port (201) which is communicated with the extruder barrel (10) and a double-hole feeding channel (200) of the transition body (20); the front ends of the two feeding screws (50) are provided with driving mechanisms for driving the two feeding screws to synchronously rotate.
2. A forced feeding device for an extruder according to claim 1, wherein: the double-hole feeding channel (200) comprises two parallel round holes (2001), and the two round holes (2001) are partially overlapped; the outer diameter of the feeding screw (50) is in clearance fit with the inner diameter of the round hole.
3. A forced feeding device for an extruder according to claim 1, wherein: the feeding screw (50) is a variable-pitch screw, and the pitch of the feeding screw (50) is gradually reduced from front to back.
4. A forced feeding device for an extruder according to claim 1, wherein: the feeding screw (50) comprises a plurality of sections of large-pitch sections (501), a plurality of sections of medium-pitch sections (502) and a plurality of sections of small-pitch sections (503) which are sequentially arranged from front to back.
5. The forced feeding apparatus of an extruder of claim 4 wherein: a feed inlet (401) is formed at the upper end of the feed cylinder body (40); a blanking connecting plate (60) is fixed on the upper end surface of the feed inlet (401), and a blanking opening (601) communicated with the feed inlet (401) is formed on the blanking connecting plate (60);
The large pitch section (501) is located directly below the feed inlet (401).
6. The forced feeding apparatus of an extruder of claim 4 wherein: the extruder barrel (10) is formed with a double-hole extrusion channel (101) and a rectangular through hole (102) communicated with the blanking port (201) and the double-hole extrusion channel (101); the rectangular through hole (102) is positioned below the small pitch section (503);
The double-hole extrusion channel (101) and the double-hole feeding channel (200) are vertically arranged;
the center height of the double-hole extrusion channel (101) is lower than that of the double-hole feeding channel (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323054865.XU CN221136828U (en) | 2023-11-10 | 2023-11-10 | Forced feeding device of extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323054865.XU CN221136828U (en) | 2023-11-10 | 2023-11-10 | Forced feeding device of extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221136828U true CN221136828U (en) | 2024-06-14 |
Family
ID=91389187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323054865.XU Active CN221136828U (en) | 2023-11-10 | 2023-11-10 | Forced feeding device of extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221136828U (en) |
-
2023
- 2023-11-10 CN CN202323054865.XU patent/CN221136828U/en active Active
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