CN205185276U - Conical twin -screw extruder barrel - Google Patents
Conical twin -screw extruder barrel Download PDFInfo
- Publication number
- CN205185276U CN205185276U CN201520857782.0U CN201520857782U CN205185276U CN 205185276 U CN205185276 U CN 205185276U CN 201520857782 U CN201520857782 U CN 201520857782U CN 205185276 U CN205185276 U CN 205185276U
- Authority
- CN
- China
- Prior art keywords
- machine barrel
- flange
- inner chamber
- neck bush
- discharging section
- 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.)
- Expired - Fee Related
Links
- 239000007769 metal material Substances 0.000 claims abstract description 5
- 150000004767 nitrides Chemical class 0.000 claims abstract description 5
- 239000011148 porous material Substances 0.000 claims abstract description 4
- 238000007599 discharging Methods 0.000 claims description 30
- 238000006396 nitration reaction Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 4
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 12
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 4
- 239000004033 plastic Substances 0.000 abstract description 2
- 229920003023 plastic Polymers 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000005121 nitriding Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model provides a bell mouth that conical twin -screw extruder barrel, barrel inner chamber (2) are crossing for two the axis parallels, the pore wall that are used for holding the twin -screw for two crossing circles are served as reasons and the ellipse that is the accumbency that forms to barrel inner chamber (2) cross sectional shape, barrel inner chamber (2) reduce its characterized in that from feed inlet to discharge gate barrel inner chamber (2) gradually: barrel (1) divide into feed zone (3) and ejection of compact section (4), and its respective link sets up feed zone flange (5) and ejection of compact section flange (6) respectively, connect with bolt (7) between the two, barrel inner chamber (2) of ejection of compact section (4) set up neck bush (8) of being made by wear -resisting metal material, neck bush (8) be provided with the one deck on the surface through the nitrogen treatment and nitride layer (81) that form. This conical twin -screw extruder barrel's advantage lies in: have good wearability and corrosion -resistant ability, can guarantee the quality of plastic products for a long time, as interior bushing abrasion or corrode the back, if change 2 neck bushs can, and change the convenience, barrel self long service life.
Description
Technical field
The utility model relates to a kind of spiro rod machine tube, especially a kind of firm wear-resisting cone double machine barrel.
Background technology
Existing a kind of application number CN201310315216.2 runs after fame and is called that the Chinese invention patent of " a kind of machine barrel of extruding ultrahigh molecular weight polyethylene " discloses a kind of machine barrel of extruding ultrahigh molecular weight polyethylene, and the viscosity that exists in ultra-high molecular weight polyethylene production process is large in order to solve for object, poor fluidity, easily to break and the problem such as degraded.This extruder barrel adopts groove machine barrel, and it arranges pin, is provided with copper sheathing outside pin.The extruder barrel of this invention can increase the frictional force of material and machine barrel, thus keep very strong forward conveying capacity, be easy to plasticizing and batch mixing, pin on it is convenient for changing, the effect that copper sheathing outside pin can play sealing, location and regulate, thus improve the extrusion efficiency of extruder and the quality of ultra-high molecular weight polyethylene.But inside the barrel of this invention, anti-wear performance is poor, and service life is shorter, therefore, be necessary to improve further this invention.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of machine tube inner wall to change for above-mentioned prior art present situation, more wear-resisting and make the cone double machine barrel of machine barrel longer service life.
The utility model solves the problems of the technologies described above adopted technical scheme: this cone double machine barrel, machine barrel inner chamber is two axis being parallel for holding twin-screw, the bellmouth that hole wall intersects, machine barrel intracavity section shape is made to be the ellipse in accumbency intersecting circle formed by two, described machine barrel inner chamber reduces from charging aperture gradually to discharging opening machine barrel inner chamber, it is characterized in that: described machine barrel is interconnected by feed zone and discharging section and forms, the machine barrel inner chamber of described discharging section arranges the neck bush be made up of wear-resistant metal material, the surface of described neck bush is provided with the process of one deck via nitride and the nitration case formed.
As improvement, described nitride thickness can be preferably 0.5mm to 0.7mm.
Further improvement, neck bush preferably can be divided into symmetrical two panels, preferably can leave gap between the two panels neck bush of described symmetry.This design is avoided expanding with heat and contract with cold and damaging neck bush.
As improvement, the nearly discharge port end of the discharging section of described machine barrel preferably can be provided with one section of alloy section be made up of high strength alloy steel.
As improvement, between the feed zone flange of described machine barrel and discharging section flange, preferably pore can be set out.
Further improvement, described venthole preferably can be merged with the half bore being opened in discharging section flange side by the half bore being opened in feed zone flange side and forms.
Further improvement, the feed zone flange of described machine barrel with scabble into a chain-wales above discharging section flange, it is 2 that described venthole is offered to machine barrel inner chamber by this chain-wales, and respectively through described 2 neck bush, 2 neck bush pass through place's leaving certain gaps uncovered by the economic plan at these 2 ventholes respectively.
As improvement, the inwall of described venthole can be preferably involute structure.
As improvement, the link of described feed zone is provided with feed end flange, the link of described discharging section is provided with discharge end flange, and described feed end flange is connected with bolt with between discharge end flange, and arranges sealing ring between feed zone flange and discharging section flange.
As improvement, the preparation method of the nitration case on described neck bush is: neck bush is put into gas nitriding furnace and carried out nitrogen treatment, the step of nitrogen treatment is: first heated by neck bush to 500 ~ 535 DEG C, control nitrogenize resolution ratio between 20 ~ 28%, insulation was to 23.6 ~ 24.4 hours, then heat to 545 ~ 560 DEG C further to neck bush, control nitrogenize resolution ratio between 50 ~ 55%, insulation was to 49.6 ~ 50.4 hours, finally neck bush is heated further to 565 ~ 570 DEG C again, control nitrogenize resolution ratio between 90 ~ 95%, be incubated 1 ~ 2 hour.
Compared with prior art, the utility model provides a kind ofly stablizes durable cone double machine barrel, because its discharging section inner chamber arranges the neck bush be made up of wear-resistant metal material, and neck bush is through nitrogen treatment, surface has one deck nitration case, therefore there is better wearability and corrosion resistance, the quality of plastic products can be ensured for a long time; When after neck bush wearing and tearing or corrosion, as long as change 2 neck bush, and change conveniently; Machine barrel self long service life; Further, described neck bush plays except wearability and corrosion resistance better except inner surface has, and the nitration case of described neck bush better can play binder course when neck bush is assemblied on machine tube inner wall, make neck bush insert more convenient, more closely, more firm.
Accompanying drawing explanation
Fig. 1 the utility model embodiment machine barrel front view;
Fig. 2 is the position C profile of Fig. 1;
Fig. 3 is the position A profile of Fig. 1;
Fig. 4 is the position B profile of Fig. 1;
Fig. 5 is the utility model embodiment machine barrel schematic perspective view;
Fig. 6 is machine barrel feed zone and discharging section released state schematic perspective view;
Fig. 7 is machine barrel feed zone and discharging section and 2 neck bush released state schematic perspective views.
Detailed description of the invention
Below in conjunction with embodiment, the utility model is described in further detail.
As shown in Figures 1 to 7, this cone double machine barrel, machine barrel inner chamber 2 is two axis being parallel for holding twin-screw, the bellmouth that hole wall intersects, machine barrel inner chamber 2 cross sectional shape is made to be the ellipse in accumbency intersecting circle formed by two, described machine barrel inner chamber 2 reduces from charging aperture gradually to discharging opening machine barrel inner chamber 2, described machine barrel 1 is divided into feed zone 3 and discharging section 4, its respective link arranges feed zone flange 5 and discharging section flange 6 respectively, therebetween connect with bolt 7, the machine barrel inner chamber 2 of described discharging section 4 arranges the neck bush 8 be made up of wear-resistant metal material, the surface of described neck bush 8 is provided with the process of one deck via nitride and the nitration case 81 formed.Described nitration case 81 thickness is 0.5mm to 0.7mm.Neck bush 8 is divided into symmetrical two panels, leaves gap 9 between the two panels neck bush 8 of described symmetry.The nearly discharge port end of the discharging section 4 of described machine barrel 1 is provided with one section of alloy section X be made up of high strength alloy steel.Pore 10 is set out between the feed zone flange 5 of described machine barrel 1 and discharging section flange 6.Described venthole 10 to be merged with the half bore 11 being opened in discharging section flange 6 side by the half bore 11 being opened in feed zone flange 5 side and forms.The feed zone flange 5 of described machine barrel 1 scabbles into a chain-wales 12 above with discharging section flange 6, it is 2 that described venthole 10 is offered to machine barrel inner chamber 2 by this chain-wales 12, and pass through place's leaving certain gaps uncovered by the economic plan 13 at these 2 ventholes 10 respectively respectively through described 2 neck bush 8,2 neck bush 8.The inwall of described venthole 10 is involute structure.Between the feed zone flange 5 of described machine barrel 1 and discharging section flange 6, sealing ring is set.The preparation method of the nitration case 81 on described neck bush 8 is: neck bush 8 is put into gas nitriding furnace and carried out nitrogen treatment, the step of nitrogen treatment is: first heat to 500 ~ 535 DEG C by neck bush 8, control nitrogenize resolution ratio between 20 ~ 28%, insulation was to 23.6 ~ 24.4 hours, then heat to 545 ~ 560 DEG C further to neck bush 8, control nitrogenize resolution ratio between 50 ~ 55%, insulation was to 49.6 ~ 50.4 hours, finally neck bush 8 is heated further to 565 ~ 570 DEG C again, control nitrogenize resolution ratio between 90 ~ 95%, be incubated 1 ~ 2 hour.
Claims (9)
1. a cone double machine barrel, machine barrel inner chamber (2) is two axis being parallel for holding twin-screw, the bellmouth that hole wall intersects, machine barrel inner chamber (2) cross sectional shape is made to be the ellipse in accumbency intersecting circle formed by two, described machine barrel inner chamber (2) is reduced from charging aperture gradually to discharging opening machine barrel inner chamber (2), it is characterized in that: described machine barrel (1) is interconnected by feed zone (3) and discharging section (4) and forms, the machine barrel inner chamber (2) of described discharging section (4) arranges the neck bush (8) be made up of wear-resistant metal material, the surface of described neck bush (8) is provided with the process of one deck via nitride and the nitration case (81) formed.
2. cone double machine barrel according to claim 1, is characterized in that: described nitration case (81) thickness is 0.5mm to 0.7mm.
3. cone double machine barrel according to claim 2, is characterized in that: neck bush (8) is divided into symmetrical two panels, leaves gap (9) between the two panels neck bush (8) of described symmetry.
4., according to described cone double machine barrel arbitrary in claims 1 to 3, it is characterized in that: the nearly discharge port end of the discharging section (4) of described machine barrel (1) is provided with one section of alloy section (X) be made up of steel alloy.
5., according to described cone double machine barrel arbitrary in claims 1 to 3, it is characterized in that: between the feed zone flange (5) of described machine barrel (1) and discharging section flange (6), set out pore (10).
6. cone double machine barrel according to claim 5, is characterized in that: described venthole (10) to be merged with the half bore (11) being opened in discharging section flange (6) side by the half bore (11) being opened in feed zone flange (5) side and forms.
7. cone double machine barrel according to claim 6, it is characterized in that: the feed zone flange (5) of described machine barrel (1) scabbles into a chain-wales (12) above with discharging section flange (6), it is 2 that described venthole (10) is offered to machine barrel inner chamber (2) by this chain-wales (12), and respectively through described 2 neck bush (8), 2 neck bush (8) pass through place's leaving certain gaps uncovered by the economic plan (13) these 2 ventholes (10) respectively.
8. the cone double machine barrel according to claim 6 or 7, is characterized in that: the inwall of described venthole (10) is involute structure.
9. according to described cone double machine barrel arbitrary in claims 1 to 3, it is characterized in that: the link of described feed zone is provided with feed end flange (5), the link of described discharging section is provided with discharge end flange (6), described feed end flange (5) is connected with bolt (7) with between discharge end flange, and arranges sealing ring between feed zone flange (5) and discharging section flange (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520857782.0U CN205185276U (en) | 2015-10-28 | 2015-10-28 | Conical twin -screw extruder barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520857782.0U CN205185276U (en) | 2015-10-28 | 2015-10-28 | Conical twin -screw extruder barrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205185276U true CN205185276U (en) | 2016-04-27 |
Family
ID=55778306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520857782.0U Expired - Fee Related CN205185276U (en) | 2015-10-28 | 2015-10-28 | Conical twin -screw extruder barrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205185276U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105235188A (en) * | 2015-10-28 | 2016-01-13 | 浙江光明塑料机械有限公司 | Cone double barrel |
| CN106346751A (en) * | 2016-08-29 | 2017-01-25 | 宁波东电电力设备制造有限公司 | Machine barrel of rubber mincing machine |
-
2015
- 2015-10-28 CN CN201520857782.0U patent/CN205185276U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105235188A (en) * | 2015-10-28 | 2016-01-13 | 浙江光明塑料机械有限公司 | Cone double barrel |
| CN106346751A (en) * | 2016-08-29 | 2017-01-25 | 宁波东电电力设备制造有限公司 | Machine barrel of rubber mincing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160427 |