CN114368128A - Grooved cylinder - Google Patents
Grooved cylinder Download PDFInfo
- Publication number
- CN114368128A CN114368128A CN202210041112.6A CN202210041112A CN114368128A CN 114368128 A CN114368128 A CN 114368128A CN 202210041112 A CN202210041112 A CN 202210041112A CN 114368128 A CN114368128 A CN 114368128A
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- CN
- China
- Prior art keywords
- section
- water jacket
- blanking
- machine barrel
- groove
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- 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.)
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Classifications
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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
- B29C48/50—Details of extruders
- B29C48/68—Barrels or cylinders
- B29C48/685—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads
- B29C48/686—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads having grooves or cavities
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
A grooved machine barrel relates to the technical field of plastic extrusion machinery; the outer part of the blanking water jacket is in interference fit with the water jacket, a plurality of cooling water tanks are processed on the outer wall of the blanking water jacket, a blanking section, a groove section with taper and a conveying groove section are sequentially arranged on the blanking water jacket from right to left, and a plurality of spiral grooves are formed in the conveying groove section; one ends of the blanking water jacket and the water jacket sleeve are connected with a cylinder straight section through a connecting flange, and the inner wall of one end of the cylinder straight section is provided with a plurality of cylinder groove sections; the other ends of the blanking water jacket and the water jacket are connected with a large flange through screws. The invention greatly improves the conveying efficiency of the resin in the straight section of the machine barrel, ensures that the resin is not accumulated in the first area of the straight section of the machine barrel, avoids high friction and ultrahigh temperature of the resin in the first area of the straight section of the machine barrel, thereby improving the service life of the machine barrel, improving the stability of resin extrusion, reducing friction heating and improving the energy consumption ratio.
Description
Technical Field
The invention relates to the technical field of plastic extrusion machinery, in particular to a grooved cylinder.
Background
Plastic products are applied to various fields more and more, steel is replaced by plastic, recycling is a development trend, along with the continuous development of the market, the demand of the market for the plastic products is larger and larger, meanwhile, the quality requirement for the plastic products is higher and higher, and the machine barrel for the single-screw extruder for producing the plastic products at present has the following defects: 1. the energy consumption ratio is lower, and the output of the extruded resin with the same energy consumption is lower; 2. a feeding groove of the machine barrel is unstable in feeding and easy to slip, so that dragging friction conveying of materials is unstable, and the output stability of the extruder is poor; 3. the first zone of the machine barrel is over-temperature on site seriously, and because the material is still in a granular state when entering the first zone of the machine barrel through the blanking groove, the friction temperature rise is severe at the moment, so that the machine barrel in the first zone can not be cooled, and the extrusion capacity is influenced; 4. the conventional blanking groove of a machine barrel of a single-screw extruder has short service life and quick abrasion, so that the use and maintenance cost of equipment is higher; 5. the current machine barrel blanking groove is sensitive to the size and the shape of resin particles, and in the using process, the blanking of some particle trees is difficult, and the resin particles slip in the machine barrel groove and are not conveyed forwards, so that the yield is not increased, and the adaptability is poor. Based on the above problems and market demands, it is urgently required to develop a grooved barrel for single screw extrusion capable of solving the above existing problems.
Disclosure of Invention
The invention aims to provide a grooved machine barrel which is simple in structure, reasonable in design and convenient to use, aiming at the defects and shortcomings of the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that: the automatic feeding device comprises a feeding water jacket, a feeding section, a water jacket, a groove section with taper, a conveying groove section, a connecting flange, a machine barrel straight section, a machine barrel groove section and a large flange; the outer part of the blanking water jacket is in interference fit with the water jacket, a plurality of cooling water tanks are processed on the outer wall of the blanking water jacket, a blanking section, a groove section with taper and a conveying groove section are sequentially arranged on the blanking water jacket from right to left, and a plurality of spiral grooves are formed in the conveying groove section; one ends of the blanking water jacket and the water jacket sleeve are connected with a cylinder straight section through a connecting flange, and the inner wall of one end of the cylinder straight section is provided with a plurality of cylinder groove sections; the other ends of the blanking water jacket and the water jacket are connected with a large flange through screws.
Furthermore, the blanking section is a straight conveying section, and the diameter of the blanking section is 8-12mm larger than that of the screw.
Further, the taper of the tapered groove section is 8-12 degrees.
Further, the number of the spiral grooves is 8-12.
Further, the groove section of the machine barrel is a gradual change type straight groove.
After adopting the structure, the invention has the beneficial effects that: the grooved cylinder provided by the invention has the advantages that the conveying efficiency of resin in the straight section of the cylinder is greatly improved, the resin cannot be accumulated in the first area of the straight section of the cylinder, high friction and ultrahigh temperature of the resin in the first area of the straight section of the cylinder are avoided, the service life of the cylinder is prolonged, the stability of resin extrusion is improved, friction heating is reduced, and the energy consumption ratio is improved.
Drawings
FIG. 1 is a block diagram of the present invention.
Description of reference numerals:
the device comprises a blanking water jacket 1, a blanking section 2, a water jacket 3, a groove section 4 with taper, a conveying groove section 5, a connecting flange 6, a machine barrel straight section 7, a machine barrel groove section 8 and a large flange 9.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Referring to fig. 1, the following technical solutions are adopted in the present embodiment: the automatic feeding device comprises a feeding water jacket 1, a feeding section 2, a water jacket 3, a groove section 4 with taper, a conveying groove section 5, a connecting flange 6, a machine barrel straight section 7, a machine barrel groove section 8 and a large flange 9; the outer part of the blanking water jacket 1 is in interference fit with the water jacket 3, a plurality of cooling water channels are processed on the outer wall of the blanking water jacket 1 and used for cooling the blanking water jacket 1, the temperature of the blanking water jacket 1 is controlled to be stabilized within a set range, the blanking water jacket 1 is sequentially provided with a blanking section 2, a groove section 4 with a taper and a conveying groove section 5 from right to left, and a plurality of spiral grooves are formed in the conveying groove section 5, so that the contact area of resin and the grooves is increased, the conveying friction force is improved, the material conveying capacity is increased, and more materials can enter a straight section of the machine barrel; one ends of the blanking water jacket 1 and the water jacket 3 are connected with a machine barrel straight section 7 through a connecting flange 6, and the inner wall of one end of the machine barrel straight section 7 is provided with a plurality of machine barrel groove sections 8; the other ends of the blanking water jacket 1 and the water jacket 3 are connected with a large flange 9 through screws to ensure the concentricity with the gear box, and the large flange 9 is connected with the gear box of the extruder.
The blanking section 2 is a straight conveying section without grooves, the diameter of the blanking section is 8-12mm larger than that of the screw, and the purpose is to ensure that resin particles in the blanking section (2) are always in a saturated state and the conveying capacity as soon as the resin particles enter the blanking section (2).
The taper of the groove section 4 with the taper is 8-12 degrees, and the groove section is used for transition of materials from the blanking section to the spiral groove section, so that the materials stably enter the spiral forced dragging friction conveying section.
The number of the spiral grooves is 8-12, the reasonable number of the spiral grooves can ensure enough friction conveying force, and the strength and the service life of the blanking water jacket 1 are reduced due to the excessive number of the spiral grooves, so that more materials can enter the straight section 7 of the machine barrel.
The groove section 8 of the machine barrel is a gradual change type straight groove, because the contact area of the resin and the groove of the conveying groove section 5 is large, when the resin just enters the straight section of the machine barrel, the dragging friction needs to be gradually excessive, and the resin can stably and excessively reach the straight section of the machine barrel, so that a plurality of gradual change type straight grooves are formed in the first area of the straight section of the machine barrel, the material conveying stability can be kept, and the temperature runaway of the first area of the straight section of the machine barrel caused by the fact that the resin enters the straight section of the machine barrel and the friction heat is too high can be reduced, and the yield is lost.
The cylinder groove section 8 plays a role in subsequent stable conveying, when resin enters the cylinder straight section through the screw groove section, the conveying capacity and the pressure are gradually released, due to the existence of a plurality of straight grooves, the conveying efficiency of the resin in the cylinder straight section is greatly improved, the resin cannot be accumulated in the first area of the cylinder straight section, high friction and ultrahigh temperature of the resin in the first area of the cylinder straight section are avoided, the service life of the cylinder is prolonged, the stability of resin extrusion is also improved, the friction heating is reduced, and the energy consumption ratio is improved.
The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a take slot type barrel which characterized in that: the automatic feeding device comprises a feeding water jacket, a feeding section, a water jacket, a groove section with taper, a conveying groove section, a connecting flange, a machine barrel straight section, a machine barrel groove section and a large flange; the outer part of the blanking water jacket is in interference fit with the water jacket, a plurality of cooling water tanks are processed on the outer wall of the blanking water jacket, a blanking section, a groove section with taper and a conveying groove section are sequentially arranged on the blanking water jacket from right to left, and a plurality of spiral grooves are formed in the conveying groove section; one ends of the blanking water jacket and the water jacket sleeve are connected with a cylinder straight section through a connecting flange, and the inner wall of one end of the cylinder straight section is provided with a plurality of cylinder groove sections; the other ends of the blanking water jacket and the water jacket are connected with a large flange through screws.
2. The grooved barrel of claim 1, wherein: the blanking section is a straight conveying section, and the diameter of the blanking section is 8-12mm larger than that of the screw.
3. The grooved barrel of claim 1, wherein: the taper of the groove section with the taper is 8-12 degrees.
4. The grooved barrel of claim 1, wherein: the number of the spiral grooves is 8-12.
5. The grooved barrel of claim 1, wherein: the groove section of the machine barrel is a gradual change type straight groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210041112.6A CN114368128A (en) | 2022-01-14 | 2022-01-14 | Grooved cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210041112.6A CN114368128A (en) | 2022-01-14 | 2022-01-14 | Grooved cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114368128A true CN114368128A (en) | 2022-04-19 |
Family
ID=81144323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210041112.6A Pending CN114368128A (en) | 2022-01-14 | 2022-01-14 | Grooved cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114368128A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201361953Y (en) * | 2009-03-24 | 2009-12-16 | 四川大学 | Multi-stage cone mixer with intensive shearing dispersion |
| CN102285086A (en) * | 2011-06-03 | 2011-12-21 | 浙江康润机械科技有限公司 | Extruder spirally conveying mechanism capable of improving extrusion efficiency |
| CN202114908U (en) * | 2011-06-10 | 2012-01-18 | 北京化工大学 | Conical extruder with spirally grooved feeding section barrel |
| CN102990902A (en) * | 2012-12-31 | 2013-03-27 | 浙江栋斌橡机螺杆有限公司 | Extruding machine |
| JP5250819B1 (en) * | 2012-09-05 | 2013-07-31 | 株式会社美和テック | Spiral die and spiral die for multilayer |
| CN103770310A (en) * | 2013-06-27 | 2014-05-07 | 北京化工大学 | Groove type machine barrel extruding machine |
| CN208068825U (en) * | 2018-02-11 | 2018-11-09 | 东莞泰星五金制品厂有限公司 | Wear resistant corrosion resistant type screw rod |
| CN208962404U (en) * | 2018-05-25 | 2019-06-11 | 苏州塑之源机械制造有限公司 | A kind of machine barrel with inter-spiral groove |
-
2022
- 2022-01-14 CN CN202210041112.6A patent/CN114368128A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201361953Y (en) * | 2009-03-24 | 2009-12-16 | 四川大学 | Multi-stage cone mixer with intensive shearing dispersion |
| CN102285086A (en) * | 2011-06-03 | 2011-12-21 | 浙江康润机械科技有限公司 | Extruder spirally conveying mechanism capable of improving extrusion efficiency |
| CN202114908U (en) * | 2011-06-10 | 2012-01-18 | 北京化工大学 | Conical extruder with spirally grooved feeding section barrel |
| JP5250819B1 (en) * | 2012-09-05 | 2013-07-31 | 株式会社美和テック | Spiral die and spiral die for multilayer |
| CN102990902A (en) * | 2012-12-31 | 2013-03-27 | 浙江栋斌橡机螺杆有限公司 | Extruding machine |
| CN103770310A (en) * | 2013-06-27 | 2014-05-07 | 北京化工大学 | Groove type machine barrel extruding machine |
| CN208068825U (en) * | 2018-02-11 | 2018-11-09 | 东莞泰星五金制品厂有限公司 | Wear resistant corrosion resistant type screw rod |
| CN208962404U (en) * | 2018-05-25 | 2019-06-11 | 苏州塑之源机械制造有限公司 | A kind of machine barrel with inter-spiral groove |
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