CN210880788U - Feeding device for double-screw extruder - Google Patents
Feeding device for double-screw extruder Download PDFInfo
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- CN210880788U CN210880788U CN201921772045.5U CN201921772045U CN210880788U CN 210880788 U CN210880788 U CN 210880788U CN 201921772045 U CN201921772045 U CN 201921772045U CN 210880788 U CN210880788 U CN 210880788U
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Abstract
The utility model relates to a feeding device for a double-screw extruder, which comprises a frame, a material mixing component arranged on the frame, and a spiral feeding component positioned below the material mixing component; the material mixing component comprises a material mixing box and a material mixing mechanism arranged in the material mixing box; the upper part of the stirring box is provided with a feeding port, and the lower part of the stirring box is provided with a discharging port; the feed inlet A of the spiral feeding assembly is communicated with the feed outlet of the material mixing box through a conduit; the material mixing mechanism comprises a rotating shaft arranged in the material mixing box, a group of spiral blades spirally surrounding the periphery of the rotating shaft and axially extending along the rotating shaft, and a motor A for driving the rotating shaft to rotate; the spiral blade group comprises a spiral blade A, a spiral blade B and a spiral blade C which are distributed from inside to outside in sequence and are arranged from small to large in diameter; the spiral blade B is consistent with the spiral blade C in pitch and opposite in rotation direction, and the spiral blade A is consistent with the spiral blade C in rotation direction. This feeding device can evenly tremble the material and scatter, prevents to block up.
Description
Technical Field
The utility model relates to a feeding device for double screw extruder.
Background
In the processing and forming of some extruded products, a double-screw extruder is required, and materials are fed into the extruder through a feeding device. However, some granular materials are often used in the processing process of extruded products, and the granular raw materials can have a bridging phenomenon, namely a blocking phenomenon, when being fed, so that the raw materials are not smoothly output, the output efficiency is influenced, and the normal operation of the double-screw extruder is influenced.
Disclosure of Invention
An object of the utility model is to provide a simple structure's a feeding device for double screw extruder, the device can tremble the material mixing and loose, prevents to block up.
The purpose of the utility model is realized through the following technical scheme: a feeding device for a double-screw extruder comprises a rack, a material mixing component arranged on the rack and a spiral feeding component positioned below the material mixing component;
the material mixing component comprises a material mixing box which extends along the left-right direction and has a circular arc-shaped section and a material mixing mechanism arranged in the material mixing box; the upper part of the stirring box is provided with a feeding port, and the lower part of the stirring box is provided with a discharging port; the feed inlet A of the spiral feeding assembly is communicated with the feed outlet of the material mixing box through a conduit;
the material mixing mechanism comprises a rotating shaft, a group of spiral blade groups and a motor A, wherein the rotating shaft is arranged in the material mixing box and extends along the left-right direction, the spiral blade groups spirally surround the periphery of the rotating shaft and axially extend along the rotating shaft, and the motor A drives the rotating shaft to rotate;
the spiral blade group comprises a spiral blade A, a spiral blade B and a spiral blade C which are sequentially distributed from inside to outside and are arranged from small to large in diameter, the spiral blade A, the spiral blade B and the spiral blade C are not overlapped in the front and rear axial spatial positions of the rotating shaft, and the spiral blade A, the spiral blade B and the spiral blade C are respectively connected with the rotating shaft through connecting rods; the spiral blade B is consistent with the spiral blade C in pitch and opposite in rotation direction, and the spiral blade A is consistent with the spiral blade C in rotation direction.
Compare prior art, the utility model has the advantages of: the utility model discloses a mix material mechanism can make a round trip to stir each material, trembles each material and looses, prevents that the caking phenomenon from appearing, makes the material pass through the pipe smoothly, avoids the inside raw materials of pipe to block up and influences feed efficiency. The utility model discloses a vibration subassembly can increase the vibration frequency and the range of pipe to make the inside material vibration of pipe scatter, avoid the inside raw materials jam of pipe. Additionally, the utility model discloses a mix material mechanism can also make the proportion difference great, the material that is very thin like starch or carbon black etc. also can with other component intensive mixing even, can play superior compounding effect.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of the stirring assembly.
Fig. 3 is a schematic structural view of the helical blade group.
Fig. 4 is an enlarged view of I in fig. 1.
Description of reference numerals: 1 rack, 2 stirring components, 21 stirring box, 211 feeding port, 212 feeding port, 221 rotating shaft, 222 spiral blade group, 2221 spiral blade A, 2222 spiral blade B, 2223 spiral blade C, 22231 scraping piece, 2224 connecting rod, 223 motor A, 3 spiral feeding component, 31 feeding box, 311 feeding port A, 312 discharging port A, 32 feeding shaft, 33 spiral feeding piece, 34 motor B, 4 conduit, 41 corrugated pipe, 42 straight pipe, 5 vibrating component, 51 pipe sleeve, 52 vibrating motor, 531 fixing rod, 532 spring, 533 fixing pipe.
Detailed Description
The invention is described in detail below with reference to the drawings and examples of the specification:
fig. 1 to fig. 4 are schematic diagrams illustrating an embodiment of a feeding device for a twin-screw extruder according to the present invention.
The feeding device for the double-screw extruder comprises a rack 1, a material mixing component 2 arranged on the rack 1 and a spiral feeding component 3 positioned below the material mixing component 2;
the stirring assembly 2 comprises a stirring box 21 which extends along the left-right direction and has a circular arc-shaped section and a stirring mechanism arranged in the stirring box 21; the upper part of the stirring box 21 is provided with a feeding port 211, and the lower part of the stirring box 21 is provided with a discharging port 212; the feed inlet A311 of the spiral feeding assembly 3 is communicated with the feed outlet 212 of the stirring box 21 through a conduit 4;
the material mixing mechanism comprises a rotating shaft 221 which is arranged in the material mixing box 21 and extends along the left-right direction, a group of spiral blade sets 222 which spirally surround the periphery of the rotating shaft 221 and extend along the axial direction of the rotating shaft 221, and a motor A223 which drives the rotating shaft 221 to rotate;
the spiral blade group 222 comprises a spiral blade a2221, a spiral blade B2222 and a spiral blade C2223 which are sequentially distributed from inside to outside and have diameters arranged from small to large, the spiral blade a2221, the spiral blade B2222 and the spiral blade C2223 are not overlapped at the front and rear spatial positions in the axial direction of the rotating shaft 221, and the spiral blade a2221, the spiral blade B2222 and the spiral blade C2223 are respectively connected with the rotating shaft 221 through a connecting rod 2224; the pitch of the helical blade B2222 is consistent with that of the helical blade C2223, and the rotation directions of the helical blade A2221 are opposite to that of the helical blade C2223.
Various materials are put into the material mixing box 21 through the feeding port 211 of the material mixing box 21 to be mixed and dispersed, then the mixed materials are discharged from the discharging port 212 of the material mixing box 21 and enter the guide pipe 4, the materials enter the spiral feeding assembly 3 through the guide pipe 4, and finally the materials are sent into the double-screw extruder through the spiral feeding assembly 3.
Helical blade A2221 is unanimous with helical blade C2223 soon, and helical blade B2222 is opposite with helical blade C2223 soon, and such crisscross revolves to opposite setting, and during the messenger's stirring, the material is stirred by opposite spiral stirring piece round trip to the stirring, rather than stirring along a direction, and the pirn is back the stirring form, has improved stirring and has mixed the effect, trembles each material completely and loosens, prevents that the caking phenomenon from appearing, makes the material pass through pipe 4 smoothly.
The diameters of the helical blade a2221, the helical blade B2222 and the helical blade C2223 are increased from small to large, the helical blade a2221, the helical blade B2222 and the helical blade C2223 are staggered in the radial direction of the rotating shaft 221 with a certain gap, and relative to the radial section of the rotating shaft 221, the helical blade a2221, the helical blade B2222 and the helical blade C2223 are not overlapped in the front and rear spatial positions in the axial direction of the rotating shaft 221, so that the helical blades a2221, the helical blade B2222 and the helical blade C2223 are ensured not to be staggered and interfered with each other, thereby facilitating the connection of the helical blades to the rotating shaft 221 through the connecting rod 2224, and further. In addition, the utility model discloses a helical blade group 222 can make the proportion difference great, the material (like starch or carbon black etc.) that is very thin also can with other component intensive mixing and tremble and scatter, prevents that the caking phenomenon from appearing.
The feed opening 211 of the mixing bin 21 is funnel-shaped.
The helical blade C2223 is provided with a plurality of scraping blades 22231 axially parallel to the rotating shaft 221. The scraping sheet 22231 can scrape off the materials adhered to the inner wall surface of the material mixing box 21, so that the utilization rate of the materials is improved.
The spiral feeding assembly 3 comprises a feeding box 31 extending along the left-right direction and connected with the rack 1, a feeding shaft 32 arranged in the feeding box 31 and extending along the left-right direction, a spiral feeding sheet 33 spirally wound on the periphery of the feeding shaft 32 and extending along the axial direction of the feeding shaft 32, and a motor B34 driving the feeding shaft 32 to rotate, wherein a discharging port A312 is arranged at the bottom of the feeding box 31. The feed inlet A311 is arranged on the top wall of the feeding box 31. The discharge port A312 of the feeding box 31 is communicated with the feed port of the double-screw extruder.
The feeding device for the double-screw extruder further comprises a vibration component 5 which is connected with the outer wall surface of the guide pipe 4 and is used for preventing the guide pipe 4 from being blocked.
The conduit 4 is divided into a corrugated pipe 41 positioned at an upper section and a straight pipe 42 positioned at a middle section; the vibration assembly 5 includes a pipe sleeve 51 fixed on the outer wall of the straight pipe 42, a vibration motor 52 fixed on the lower sidewall of the pipe sleeve 51, and an elastic unit 53 connected between the upper sidewall of the pipe sleeve 51 and the frame 1.
The elastic unit 53 includes a fixing lever 531 having a lower end hinged to the socket 51 and a spring 532 connected between an upper end of the fixing lever 531 and the frame 1. A fixed pipe 533 is sleeved on the periphery of the spring 532, and the fixed pipe 533 is fixedly arranged on the frame 1.
The vibrating motor 52 is started to vibrate the conduit 4, so as to drive the fixing rod 531 to move up and down, the fixing rod 531 moves and drives the spring 532 to stretch up and down, the vibration frequency and amplitude of the conduit 4 are larger under the action of the spring 532, and therefore the blockage caused by accumulation of materials in the conduit 4 can be avoided.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. A feeding device for a double-screw extruder is characterized in that: the device comprises a rack (1), a material mixing component (2) arranged on the rack (1) and a spiral feeding component (3) positioned below the material mixing component (2);
the material mixing component (2) comprises a material mixing box (21) which extends along the left-right direction and has a circular arc-shaped section and a material mixing mechanism arranged in the material mixing box (21); the upper part of the material mixing box (21) is provided with a feeding port (211), and the lower part of the material mixing box (21) is provided with a discharging port (212); the feed inlet A (311) of the spiral feeding assembly (3) is communicated with the feed outlet (212) of the mixing box (21) through a conduit (4);
the material mixing mechanism comprises a rotating shaft (221) which is arranged in the material mixing box (21) and extends along the left-right direction, a group of spiral blade sets (222) which spirally surround the periphery of the rotating shaft (221) and axially extend along the rotating shaft (221), and a motor A (223) which drives the rotating shaft (221) to rotate;
the spiral blade group (222) comprises a spiral blade A (2221), a spiral blade B (2222) and a spiral blade C (2223) which are sequentially distributed from inside to outside and have diameters arranged from small to large, the spiral blade A (2221), the spiral blade B (2222) and the spiral blade C (2223) are not overlapped at the front and rear spatial positions in the axial direction of the rotating shaft (221), and the spiral blade A (2221), the spiral blade B (2222) and the spiral blade C (2223) are respectively connected with the rotating shaft (221) through connecting rods (2224); the helical blade B (2222) and the helical blade C (2223) have the same pitch and opposite rotation directions, and the helical blade A (2221) and the helical blade C (2223) have the same rotation direction.
2. Feeding device for a twin-screw extruder according to claim 1, characterized in that: the helical blade C (2223) is provided with a plurality of scraping sheets (22231) which are parallel to the axial direction of the rotating shaft (221).
3. Feeding device for a twin-screw extruder according to claim 1, characterized in that: the spiral feeding assembly (3) comprises a feeding box (31) extending along the left-right direction and connected with the rack (1), a feeding shaft (32) arranged in the feeding box (31) and extending along the left-right direction, a spiral feeding sheet (33) spirally wound on the periphery of the feeding shaft (32) and extending along the axial direction of the feeding shaft (32), and a motor B (34) driving the feeding shaft (32) to rotate, wherein a discharging hole A (312) is formed in the bottom of the feeding box (31).
4. Feeding device for a twin-screw extruder according to any one of claims 1 to 3, characterized in that: it also comprises a vibration component (5) which is connected with the outer wall surface of the conduit (4) and is used for preventing the conduit (4) from being blocked.
5. Feeding device for a twin-screw extruder according to claim 4, characterized in that: the guide pipe (4) is divided into a corrugated pipe (41) positioned at an upper section and a lower section and a straight pipe (42) positioned at a middle section; the vibration component (5) comprises a pipe sleeve (51) which is sleeved and fixed on the outer wall surface of the straight pipe (42), a vibration motor (52) which is fixedly arranged on the lower side wall of the pipe sleeve (51) and an elastic unit which is connected between the upper side wall of the pipe sleeve (51) and the rack (1).
6. Feeding device for a twin-screw extruder according to claim 5, characterized in that: the elastic unit comprises a fixed rod (531) with the lower end hinged on the pipe sleeve (51) and a spring (532) connected between the upper end of the fixed rod (531) and the rack (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921772045.5U CN210880788U (en) | 2019-10-21 | 2019-10-21 | Feeding device for double-screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921772045.5U CN210880788U (en) | 2019-10-21 | 2019-10-21 | Feeding device for double-screw extruder |
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| Publication Number | Publication Date |
|---|---|
| CN210880788U true CN210880788U (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921772045.5U Active CN210880788U (en) | 2019-10-21 | 2019-10-21 | Feeding device for double-screw extruder |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112123619A (en) * | 2020-09-08 | 2020-12-25 | 湖南连心科技有限公司 | A extruder feed arrangement for powder coating preparation |
| CN113265101A (en) * | 2021-05-20 | 2021-08-17 | 浙江泽安电力设备有限公司 | Processing technology of high-strength MPP pipeline |
| CN115245809A (en) * | 2021-04-28 | 2022-10-28 | 林园先进材料科技股份有限公司 | Reactor for post-modification of carbon-based material, post-modification reaction apparatus, post-modification treatment system, and method therefor |
| CN116811194A (en) * | 2023-08-30 | 2023-09-29 | 山东圣和薄膜新材料有限公司 | Single screw extruder |
-
2019
- 2019-10-21 CN CN201921772045.5U patent/CN210880788U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112123619A (en) * | 2020-09-08 | 2020-12-25 | 湖南连心科技有限公司 | A extruder feed arrangement for powder coating preparation |
| CN112123619B (en) * | 2020-09-08 | 2022-04-05 | 湖南连心科技有限公司 | A extruder feed arrangement for powder coating preparation |
| CN115245809A (en) * | 2021-04-28 | 2022-10-28 | 林园先进材料科技股份有限公司 | Reactor for post-modification of carbon-based material, post-modification reaction apparatus, post-modification treatment system, and method therefor |
| CN113265101A (en) * | 2021-05-20 | 2021-08-17 | 浙江泽安电力设备有限公司 | Processing technology of high-strength MPP pipeline |
| CN116811194A (en) * | 2023-08-30 | 2023-09-29 | 山东圣和薄膜新材料有限公司 | Single screw extruder |
| CN116811194B (en) * | 2023-08-30 | 2023-12-01 | 山东圣和薄膜新材料有限公司 | Single screw extruder |
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