CN112223719A - Linear homodromous parallel three-screw extruder - Google Patents
Linear homodromous parallel three-screw extruder Download PDFInfo
- Publication number
- CN112223719A CN112223719A CN202011001736.2A CN202011001736A CN112223719A CN 112223719 A CN112223719 A CN 112223719A CN 202011001736 A CN202011001736 A CN 202011001736A CN 112223719 A CN112223719 A CN 112223719A
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- Prior art keywords
- screw
- conditioner
- conveying
- parallel
- sleeve
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
- B29C48/425—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders using three or more screws
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a straight homodromous parallel three-screw extruder which comprises a rack, and a motor, a gear box and a screw sleeve which are arranged on the rack, wherein a screw rod assembly is arranged in the screw sleeve, the screw rod assembly comprises three parallel straight screw rods, the adjacent screw rods are meshed, and the motor drives the three screw rods to rotate in the same direction through the gear box; the screw comprises a mandrel, wherein a conveying threaded element and a mixing threaded element are arranged on the mandrel, and the conveying threaded element is arranged in a partition mode through the mixing threaded element; the screw rod output end is connected with a cutting device, the screw sleeve is also communicated with a vacuumizing device and a conditioner, the conditioner is connected with a feeder, and the feeder feeds materials into the screw sleeve through the conditioner. The invention improves the mixing performance and the productivity of the existing extruder and reduces the overall energy consumption.
Description
Technical Field
The invention belongs to the technical field of extruders, and particularly relates to a straight homodromous parallel three-screw extruder.
Background
Extruder function is various makes its wide application in fields such as fodder, food, plastics and battery thick liquids, and current extruder adopts double screw extruder more, and the mixing area has only a meshing district, for strengthening double screw extruder mixing ability, the draw ratio of extension screw usually solves, so battery thick liquids double screw extruder draw ratio reaches 44: 1 and above, the extruder has large length-diameter ratio, occupies large space, requires large area of a drying plant, has large energy consumption and low yield, is limited by exhaust capacity, air in the extruder is not easy to exhaust, and a vacuumizing device is required to be arranged in the next procedure.
Disclosure of Invention
The invention aims to provide a straight-line-shaped equidirectional parallel three-screw extruder, which improves the mixing performance and the productivity of the existing extruder and reduces the overall energy consumption.
The invention provides the following technical scheme:
a straight-line-shaped homodromous parallel three-screw extruder comprises a rack, and a motor, a gear box and a screw sleeve which are arranged on the rack, wherein a screw assembly is arranged in the screw sleeve, the screw assembly comprises three parallel screws which are arranged in a straight line shape, the adjacent screws are meshed, and the motor drives the three screws to rotate in the same direction through the gear box; the screw comprises a mandrel, wherein a conveying threaded element and a mixing threaded element are arranged on the mandrel, and the conveying threaded element is arranged in a partition mode through the mixing threaded element; the screw rod output end is connected with a cutting device, the screw sleeve is also communicated with a vacuumizing device and a conditioner, the conditioner is connected with a feeder, and the feeder feeds materials into the screw sleeve through the conditioner.
Preferably, the partition of the conveying threaded element comprises a feeding area, a mixing area, an exhaust area and a metering conveying area, the conditioner is arranged corresponding to the feeding area, the vacuumizing device is arranged corresponding to the exhaust area, and the metering conveying area is connected with the cutting device.
Preferably, a screw head is arranged at one end of the mandrel and connected with the cutting device.
Preferably, a feeding motor is arranged at one end of the feeder, a conveying shaft is arranged in the feeder, the conveying shaft is provided with spirally distributed blades and is connected with the feeding motor, and the feeder feeds materials to the conditioner through the conveying shaft.
Preferably, the conditioner comprises three groups of spiral conveyors connected with each other, one end of each spiral conveyor is provided with a conveying motor, and the spiral conveyors convey materials into the screw sleeves through the conveying motors.
Preferably, a tee is arranged between the conditioner and the screw sleeve, and the conditioner feeds materials into the screw sleeve through the tee.
Preferably, a support is arranged between the rack and the threaded sleeve, one end of the threaded sleeve is connected with the gear box, and the other end of the threaded sleeve is connected with the cutting device.
Preferably, a safety shield is arranged on the gear box.
The invention has the beneficial effects that: the invention solves the problem of large length-diameter ratio of the screw rod of the existing extruder, effectively avoids the problem of sinking and deforming of one end of the screw rod of the existing extruder with large length-diameter ratio, reduces abrasion and improves the performance of the screw extruder; meanwhile, the area of a workshop is reduced, and the energy consumption of a drying workshop is reduced; the invention improves the mixing capability, increases a screw meshing area, improves the mixing capability by 100 percent compared with a homodromous double screw, and improves the quality of finished products; the invention increases the exhaust area, the three screws are arranged in parallel, the exhaust port is increased by 100 percent in the radial direction, and the exhaust and vacuum-pumping capability is greatly improved; the volume of the screw is increased, the volume ratio of the three screws to the double screws is increased by 50%, and the capacity of the extruder is greatly increased.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic top view of the overall device of the present invention;
FIG. 3 is a perspective view of the screw assembly of the present invention;
FIG. 4 is a schematic top view of the screw assembly of the present invention;
FIG. 5 is a schematic side view of the screw assembly of the present invention;
labeled as: 1. a frame; 11. a support; 2. a motor; 3. a gear case; 31. a safety shield; 4. a threaded sleeve; 41. a screw assembly; 411. a mandrel; 412. a conveying threaded element; 413. a hybrid screw element; 414. a screw head; 5. a vacuum pumping device; 6. a cutting device; 7. a feeder; 71. a feeding motor; 72. a delivery shaft; 8. a conditioner; 81. a conveying motor; 82. a tee joint; A. a feed zone; B. a mixing region; C. an exhaust region; D. a metering delivery area.
Detailed Description
As shown in fig. 1-2, a straight homodromous parallel three-screw extruder comprises a frame 1, and a motor 2, a gear box 3 and a screw sleeve 4 which are arranged on the frame 1, wherein a support 11 is arranged between the frame 1 and the screw sleeve 4 to keep the whole machine stable, one end of the screw sleeve 4 is connected with the gear box 3, the other end of the screw sleeve is connected with a cutting device 6, and a safety shield 31 is arranged on the gear box 3 and used for protecting the gear box 3. A screw rod assembly 41 is arranged in the screw sleeve 4, and the motor 2 drives the screw rod assembly 41 to rotate through the gear box 3; the output end of the screw rod is connected with a cutting device 6, the threaded sleeve 4 is also communicated with a vacuumizing device 5 and a conditioner 8, the conditioner 8 is connected with a feeder 7, and the feeder 7 feeds materials into the threaded sleeve 4 through the conditioner 8. One end of the feeder 7 is provided with a feeding motor 71, a conveying shaft 72 is arranged in the feeder 7, the conveying shaft 72 is provided with spirally distributed blades, the conveying shaft 72 is connected with the feeding motor 71, and the feeder 7 feeds materials to the conditioner 7 through the conveying shaft 72. Further, the conditioner 7 comprises three groups of spiral conveyors connected with each other, one end of each spiral conveyor is provided with a conveying motor 81, the spiral conveyors feed materials into the screw sleeves 4 through the conveying motors 81, the conditioner 7 is used for adding water and steam, a tee 82 is arranged between the conditioner 8 and the screw sleeves 4, and the conditioner 8 feeds materials into the screw sleeves 4 through the tee 82.
As shown in fig. 3-5, the screw assembly 41 includes three parallel screws, the three screws rotate in the same direction, adjacent screws are engaged with each other, the screws include a spindle 411, a conveying screw element 412 and a mixing screw element 413 are disposed on the spindle 411, a screw head 414 is disposed at one end of the spindle 411, and the screw head 414 is connected to the cutting device 6. The delivery screw 412 is zoned by a mixing screw 413; the subarea of the conveying threaded element 412 comprises a feeding area A, a mixing area B, an exhaust area C and a metering conveying area D, the conditioner 8 is arranged corresponding to the feeding area A, the vacuumizing device 5 is arranged corresponding to the exhaust area C, and the metering conveying area D is connected with the cutting device 6.
As shown in figures 1-5, when the linear homodromous parallel three-screw extruder is used, raw materials are added through a feeder 7, the raw materials are added and adjusted through a conditioner 7 in the conveying process and conveyed into a screw sleeve 4, three screws which are arranged in parallel in a straight line are installed in the screw sleeve 4, a motor 2 drives the three screws to rotate in the same direction through a gear box 3, adjacent screws are meshed, the three screws are provided with two meshing areas, the mixing capacity is improved by 100% compared with that of a homodromous double screw, and the quality of a finished product is improved. And the three screws are provided with a conveying threaded element 412 and a mixing threaded element 413, so that the screws are conveyed in a partitioned manner, the performance of the combined screw is improved, the abrasion is effectively reduced, and the performance of the extruder is improved.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A straight-line-shaped homodromous parallel three-screw extruder is characterized by comprising a rack, and a motor, a gear box and a screw sleeve which are arranged on the rack, wherein a screw rod assembly is arranged in the screw sleeve, the screw rod assembly comprises three parallel straight-line-shaped screw rods, the adjacent screw rods are meshed, and the motor drives the three screw rods to rotate in the same direction through the gear box; the screw comprises a mandrel, wherein a conveying threaded element and a mixing threaded element are arranged on the mandrel, and the conveying threaded element is arranged in a partition mode through the mixing threaded element; the screw rod output end is connected with a cutting device, the screw sleeve is also communicated with a vacuumizing device and a conditioner, the conditioner is connected with a feeder, and the feeder feeds materials into the screw sleeve through the conditioner.
2. The in-line co-rotating parallel triple screw extruder according to claim 1, wherein the zones of the conveying screw elements comprise a feeding zone, a mixing zone, an exhaust zone and a metering conveying zone, the conditioner is arranged corresponding to the feeding zone, the vacuum extractor is arranged corresponding to the exhaust zone, and the metering conveying zone is connected with the cutting device.
3. The in-line type equidirectional parallel three-screw extruder according to claim 1, wherein a screw head is arranged at one end of the mandrel, and the screw head is connected with the cutting device.
4. The in-line equidirectional parallel three-screw extruder according to claim 1, wherein a feeding motor is arranged at one end of the feeder, a conveying shaft is arranged in the feeder, the conveying shaft is provided with spirally distributed blades, the conveying shaft is connected with the feeding motor, and the feeder feeds materials to the conditioner through the conveying shaft.
5. The in-line co-rotating parallel three-screw extruder according to claim 1, wherein the conditioner comprises three groups of linked screw conveyors, one end of each screw conveyor is provided with a conveying motor, and the screw conveyors feed materials into the screw sleeves through the conveying motors.
6. The in-line co-rotating parallel triple screw extruder according to claim 1, wherein a tee is provided between the conditioner and the screw sleeve, and the conditioner feeds material into the screw sleeve through the tee.
7. The in-line co-rotating parallel three-screw extruder according to claim 1, wherein a support is arranged between the frame and the screw sleeve, one end of the screw sleeve is connected with the gear box, and the other end of the screw sleeve is connected with the cutting device.
8. The in-line co-rotating parallel triple screw extruder according to claim 1, wherein a safety guard is provided on the gear box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011001736.2A CN112223719A (en) | 2020-09-22 | 2020-09-22 | Linear homodromous parallel three-screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011001736.2A CN112223719A (en) | 2020-09-22 | 2020-09-22 | Linear homodromous parallel three-screw extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112223719A true CN112223719A (en) | 2021-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011001736.2A Pending CN112223719A (en) | 2020-09-22 | 2020-09-22 | Linear homodromous parallel three-screw extruder |
Country Status (1)
| Country | Link |
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| CN (1) | CN112223719A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113367366A (en) * | 2021-06-18 | 2021-09-10 | 四川众鑫盛农牧机械有限公司 | Three-screw-shaft feed puffing equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203986022U (en) * | 2014-07-01 | 2014-12-10 | 江苏正昌粮机股份有限公司 | A kind of granulating machine for production of granulated fodder |
| CN110216860A (en) * | 2019-04-09 | 2019-09-10 | 东莞市锕舒尔智能科技有限公司 | A kind of three segment hub seal glue automatic production line of "-" type in the same direction |
-
2020
- 2020-09-22 CN CN202011001736.2A patent/CN112223719A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203986022U (en) * | 2014-07-01 | 2014-12-10 | 江苏正昌粮机股份有限公司 | A kind of granulating machine for production of granulated fodder |
| CN110216860A (en) * | 2019-04-09 | 2019-09-10 | 东莞市锕舒尔智能科技有限公司 | A kind of three segment hub seal glue automatic production line of "-" type in the same direction |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113367366A (en) * | 2021-06-18 | 2021-09-10 | 四川众鑫盛农牧机械有限公司 | Three-screw-shaft feed puffing equipment |
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| CB02 | Change of applicant information |
Address after: 213300 No. 88, Yunmei Road, Tianmuhu Industrial Park, Liyang City, Changzhou City, Jiangsu Province Applicant after: BUHLER (CHANGZHOU) MACHINERY Co.,Ltd. Address before: No.88 Yunmei Road, Tianmuhu Industrial Park, Liyang City, Xuzhou City, Jiangsu Province 213300 Applicant before: BUHLER (CHANGZHOU) MACHINERY Co.,Ltd. |
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| CB02 | Change of applicant information |