CN105946196A - Screw extruder with prepressing function - Google Patents
Screw extruder with prepressing function Download PDFInfo
- Publication number
- CN105946196A CN105946196A CN201610336159.XA CN201610336159A CN105946196A CN 105946196 A CN105946196 A CN 105946196A CN 201610336159 A CN201610336159 A CN 201610336159A CN 105946196 A CN105946196 A CN 105946196A
- Authority
- CN
- China
- Prior art keywords
- extrusion
- prepressing
- screw rod
- cylinder
- precompressed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- 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
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/287—Raw material pre-treatment while feeding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/22—Extrusion presses; Dies therefor
- B30B11/24—Extrusion presses; Dies therefor using screws or worms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/30—Feeding material to presses
- B30B15/302—Feeding material in particulate or plastic state to moulding presses
- B30B15/308—Feeding material in particulate or plastic state to moulding presses in a continuous manner, e.g. for roller presses, screw extrusion presses
Abstract
The invention discloses a screw extruder with the prepressing function. The screw extruder with the prepressing function comprises a bracket, a prepressing cylinder and a pair of transmission gears which are mutually meshed, wherein a drive tank and an extrusion cylinder are arranged on the bracket; a motor, a reducer, a transmission shaft and a coupling are arranged in the drive tank; an extrusion screw rod is accommodated in the extrusion cylinder; an extrusion feeding hole and an extrusion discharge hole are formed in the extrusion cylinder; the prepressing cylinder is in a horizontal type and is arranged at the top part of the exterior of the drive tank; a prepressing screw rod is horizontally arranged in the prepressing cylinder; a prepressing feeding hole and a prepressing discharge hole are also formed in the prepressing cylinder; the prepressing discharge hole is formed in the axial position of the prepressing screw rod; and the pair of transmission gears are arranged on the prepressing screw rod and the transmission shaft respectively. According to the screw extruder with the prepressing function, a material can be prepressed firstly so that gas in the material can be completely driven away and it is ensured that gas explosion will not occur in the material to affect final forming quality, and thus the strength of a sample in extrusion moulding can be improved, the structure is simple, prepressing and extrusion are automatically carried out simultaneously, the operation time is saved, the human cost is reduced, and the working efficiency is improved.
Description
Technical field
The present invention relates to a kind of band extrusion molding machine, be specifically related to a kind of screw rod banded extruder with pre-pressing function.
Background technology
Screw rod banded extruder is common extrusion shaping machine, and in prior art, screw rod banded extruder includes the parts such as driving means, extrusion barrel, feeding device, extrusion screw rod and mouth die.Material, after charging aperture sends into extrusion cylinder, is promoted forward by material through extrusion screw rod, and along with material is pushed ahead, extrusion screw rod rotates and material produces the strongest compression stress and shearing force, and compression stress is much larger than shearing force.The compressed mouth die that is advanced to of material is extruded into strip through porous plate, then cuts off molding.
During material is extruded by charge door entrance banded extruder, if also having a large amount of gases in material, then it may happen that air blasting phenomenon, the quality of extruded moulding sample can be had a strong impact on.Therefore, in actual production process, need first material to be carried out pre-molding, make the idiosome with certain volume, some strength, fully discharge the gas in material, in idiosome is added banded extruder, carry out extruded moulding the most again.But typically in the general production process of horizontal screw banded extruder, needing manual operation, use two equipment that material is carried out precompressed and extrusion, labor intensity is big, and production efficiency is low.
Summary of the invention
The technical problem to be solved is that material is when being contained within a large amount of gas, banded extruder extrusion process can occur air blasting phenomenon, affect the Forming Quality that material is final, purpose is to provide a kind of screw rod banded extruder with pre-pressing function, material can be carried out precompressed, fully drive the gas in material away, and realize precompressed and extruded moulding automatic integratedization.
The present invention is achieved through the following technical solutions:
nullA kind of screw rod banded extruder with pre-pressing function，Including support，Described support is provided with driving box and extrusion cylinder，Described driving box is tightly connected with extrusion cylinder，Motor it is provided with in driving box、Decelerator、Power transmission shaft and shaft coupling，The main shaft of motor is connected with the input of decelerator，The outfan of decelerator is provided with power transmission shaft，Power transmission shaft is connected with extrusion screw rod by shaft coupling，Extrusion screw rod is accommodated in described extrusion cylinder，Extrusion cylinder is provided with extrusion charge door and extrusion discharging opening，Also include pre-pressure cylinder，Described pre-pressure cylinder is top that is horizontal and that be arranged at outside driving box，It has been horizontally disposed with precompression screw in pre-pressure cylinder，Precompressed charge door and precompressed discharging opening it is additionally provided with on pre-pressure cylinder，Described precompressed discharging opening is positioned at precompression screw axial positions，Also include a pair intermeshing travelling gear being respectively arranged on precompression screw and power transmission shaft，Described travelling gear is positioned at driving box.
The present invention is to improve further on the architecture basics of existing horizontal screw banded extruder, the precompressed mechanism with pre-pressing function is installed on driving box top, precompressed mechanism includes pre-pressure cylinder, it is provided with precompression screw in pre-pressure cylinder, precompression screw produces compression stress by rotating to material in pre-pressure cylinder, make material compression, fully get rid of the gas in material, formed and have effigurate idiosome.Additionally, process through precompressed, it is possible not only to get rid of the gas affecting its molding in material, it is also possible to making idiosome have some strength, idiosome can obtain higher intensity through banded extruder extruded moulding again.It is respectively provided with intermeshing travelling gear in precompression screw and extrusion screw rod, extrusion screw rod is driven by motor, precompression screw is driven to rotate through travelling gear transmission driving force, realize synchronizing automatically to carry out to material precompressed and extrusion, save the operating time, save human cost, and simplified frame for movement, it is simple to installed and maintenance management.Precompression screw and the rotary speed of extrusion screw rod can be adjusted by arranging the travelling gear of different size.
The extrusion screw rod of the position that described extrusion charge door is corresponding is provided with discontinuous screw thread, and the flight pitch on the extrusion screw rod of extrusion charge door section is less than the flight pitch on other positions of extrusion screw rod.
In prior art, the extrusion screw rod of extrusion charge door section primarily serves the effect of conveying material, it is provided with discontinuous screw thread by increasing thereon, and the flight pitch of this section is little compared with the flight pitch at other positions, mainly increase the shearing force of screw rod, the material with certain idiosome carries out simply " pelletize " process, make to enter smoothly through the material of precompressed the extruded segment of extrusion cylinder.
Described precompressed discharging opening is positioned at the top of extrusion charge door, makes the precompressed sample from precompressed discharging opening extrusion fall in extrusion charge door.
Arrange precompressed mechanism to make it is ensured that precompressed discharging opening is positioned at the precompressed sample that the top of extrusion charge door makes precompressed discharging opening extrude falls directly into extrusion charge door, or simply connect through simple connecting plate and make material can be automatically added in extrusion charge door.Contribute to realizing precompressed and extrusion automation mechanized operation.
The present invention compared with prior art, has such advantages as and beneficial effect:
1, the present invention is a kind of screw rod banded extruder with pre-pressing function, material can first carry out precompressed, fully drive the gas in material away, it is ensured that material will not occur " air blasting " to affect final molding quality；
2, the present invention is a kind of screw rod banded extruder with pre-pressing function, processes through precompressed, idiosome can be made to have some strength, and idiosome can obtain higher intensity through banded extruder extruded moulding again.；
3, the present invention is a kind of screw rod banded extruder with pre-pressing function, simple in construction, it is achieved that precompressed and extrusion are carried out simultaneously automatically, save the operating time, have saved human cost, improve work efficiency.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by the embodiment of the present invention, constitutes the part of the application, is not intended that the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is that a kind of screw rod banded extruder with pre-pressing function of this practicality faces section type structural representation.
The parts title of labelling and correspondence in accompanying drawing:
1-support, 2-driving box, 3-motor, 4-power transmission shaft, 5-decelerator, 6-travelling gear, 7-precompression screw, 8-precompressed charge door, the pre-pressure cylinder of 9-, 10-precompressed discharging opening, 11-extrusion charge door, 12-discontinuous screw, 13-extrusion cylinder, 14-extrusion screw rod, 15-extrusion discharging opening, 16-shaft coupling.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, and the exemplary embodiment of the present invention and explanation thereof are only used for explaining the present invention, not as a limitation of the invention.
Embodiment
As it is shown in figure 1, a kind of screw rod banded extruder with pre-pressing function of the present invention, including support 1, support 1 is provided with driving box 2 and extrusion cylinder 13, and driving box 2 is tightly connected with extrusion cylinder 13.Being provided with motor 3, decelerator 5, power transmission shaft 4 and shaft coupling 16 in driving box 2, the main shaft of motor 3 is connected with the input of decelerator 5, and the outfan of decelerator 5 is provided with power transmission shaft 4, and power transmission shaft 4 is connected with extrusion screw rod 14 by shaft coupling 16.Accommodating extrusion screw rod 14 in extrusion cylinder 13, extrusion cylinder 13 is provided with extrusion charge door 11 and extrusion discharging opening 15.Also include that pre-pressure cylinder 9, pre-pressure cylinder 9 are horizontal and are arranged at the top outside driving box 2.It is horizontally disposed with precompression screw 7 in pre-pressure cylinder 9, pre-pressure cylinder 9 has been additionally provided with precompressed charge door 8 and precompressed discharging opening 10.Precompressed discharging opening 10 is in precompression screw 7 axial positions, and is positioned at the surface of extrusion charge door 11, makes the precompressed sample from precompressed discharging opening 10 extrusion fall in extrusion charge door 11.Also including a pair intermeshing travelling gear 6 being respectively arranged on precompression screw 7 and power transmission shaft 4, travelling gear 6 is positioned at driving box 2.
The extrusion screw rod 14 of the position that extrusion charge door 11 is corresponding is provided with discontinuous screw thread 12, and the flight pitch on the extrusion screw rod 14 of extrusion charge door 11 sections is the half of the flight pitch on other positions of extrusion screw rod 15.
Above-described detailed description of the invention; the purpose of the present invention, technical scheme and beneficial effect are further described; it is it should be understood that; the foregoing is only the detailed description of the invention of the present invention; the protection domain being not intended to limit the present invention; all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, should be included within the scope of the present invention.
Claims (3)
- null1. a screw rod banded extruder with pre-pressing function，Including support (1)，Described support (1) is provided with driving box (2) and extrusion cylinder (13)，Described driving box (2) is tightly connected with extrusion cylinder (13)，Motor (3) it is provided with in driving box (2)、Decelerator (5)、Power transmission shaft (4) and shaft coupling (16)，The main shaft of motor (3) is connected with the input of decelerator (5)，The outfan of decelerator (5) is provided with power transmission shaft (4)，Power transmission shaft (4) is connected with extrusion screw rod (14) by shaft coupling (16)，Extrusion screw rod (14) is accommodated in described extrusion cylinder (13)，Extrusion cylinder (13) is provided with extrusion charge door (11) and extrusion discharging opening (15)，It is characterized in that，Also include pre-pressure cylinder (9)，Described pre-pressure cylinder (9) is horizontal and is arranged at driving box (2) top outward，Precompression screw (7) it has been horizontally disposed with in pre-pressure cylinder (9)，Precompressed charge door (8) and precompressed discharging opening (10) it is additionally provided with on pre-pressure cylinder (9)，Described precompressed discharging opening (10) is positioned at precompression screw (7) axial positions，Described banded extruder also includes a pair intermeshing travelling gear (6) being respectively arranged on precompression screw (7) and power transmission shaft (4)，Described travelling gear (6) is positioned at driving box (2).
- A kind of screw rod banded extruder with pre-pressing function the most according to claim 1, it is characterized in that, the extrusion screw rod (14) of the position that described extrusion charge door (11) is corresponding is provided with discontinuous screw thread (12), and the flight pitch on the extrusion screw rod (14) of extrusion charge door (11) section is less than the flight pitch on extrusion screw rod (14) other positions.
- A kind of screw rod banded extruder with pre-pressing function the most according to claim 1, it is characterized in that, described precompressed discharging opening (10) is positioned at the top of extrusion charge door (11), makes the precompressed sample extruded from precompressed discharging opening (10) fall in extrusion charge door (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610336159.XA CN105946196B (en) | 2016-05-20 | 2016-05-20 | A kind of screw rod banded extruder with pre-pressing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610336159.XA CN105946196B (en) | 2016-05-20 | 2016-05-20 | A kind of screw rod banded extruder with pre-pressing function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105946196A true CN105946196A (en) | 2016-09-21 |
| CN105946196B CN105946196B (en) | 2018-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610336159.XA Active CN105946196B (en) | 2016-05-20 | 2016-05-20 | A kind of screw rod banded extruder with pre-pressing function |
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| Country | Link |
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| CN (1) | CN105946196B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110202817A (en) * | 2019-07-02 | 2019-09-06 | 王星 | A kind of device that straw from village can be packaged to compacting |
| CN111002628A (en) * | 2019-12-02 | 2020-04-14 | 湖北延昌机械设备有限公司 | Feeding mechanism of garbage compressor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3679788A (en) * | 1969-05-26 | 1972-07-25 | Sekisui Chemical Co Ltd | Process for the preparation of thermoplastic articles containing liquid matter uniformly |
| CN201283592Y (en) * | 2008-08-28 | 2009-08-05 | 姚志刚 | Extruder |
| CN202491332U (en) * | 2012-02-29 | 2012-10-17 | 浙江海亚科技有限公司 | Energy-saving type processing device for biaxially-oriented polypropylene (BOPP) master batch production |
| CN203046213U (en) * | 2012-12-05 | 2013-07-10 | 广州和创塑化有限公司 | Twin-screw extruder with novel structure |
| CN205044122U (en) * | 2015-10-14 | 2016-02-24 | 浙江广翰环保科技股份有限公司 | High pressure extrusion moulding machine |
-
2016
- 2016-05-20 CN CN201610336159.XA patent/CN105946196B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3679788A (en) * | 1969-05-26 | 1972-07-25 | Sekisui Chemical Co Ltd | Process for the preparation of thermoplastic articles containing liquid matter uniformly |
| CN201283592Y (en) * | 2008-08-28 | 2009-08-05 | 姚志刚 | Extruder |
| CN202491332U (en) * | 2012-02-29 | 2012-10-17 | 浙江海亚科技有限公司 | Energy-saving type processing device for biaxially-oriented polypropylene (BOPP) master batch production |
| CN203046213U (en) * | 2012-12-05 | 2013-07-10 | 广州和创塑化有限公司 | Twin-screw extruder with novel structure |
| CN205044122U (en) * | 2015-10-14 | 2016-02-24 | 浙江广翰环保科技股份有限公司 | High pressure extrusion moulding machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110202817A (en) * | 2019-07-02 | 2019-09-06 | 王星 | A kind of device that straw from village can be packaged to compacting |
| CN111002628A (en) * | 2019-12-02 | 2020-04-14 | 湖北延昌机械设备有限公司 | Feeding mechanism of garbage compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105946196B (en) | 2018-07-17 |
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Effective date of registration: 20180627 Address after: 528241 B, C, D, No. 7 Nanshui Road, Lishui town and Shunhe Guangyuan Industrial Park, Foshan, Guangdong. Applicant after: Foshan Nanhai generosity Home Products Co., Ltd. Address before: 610000 218.220 Linglong Road, Shiling Street office, Longquanyi District, Chengdu, Sichuan Applicant before: Coolie Science and Technology Ltd. of Chengdu section |