CN204604861U - extruder - Google Patents
extruder Download PDFInfo
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- CN204604861U CN204604861U CN201520055542.9U CN201520055542U CN204604861U CN 204604861 U CN204604861 U CN 204604861U CN 201520055542 U CN201520055542 U CN 201520055542U CN 204604861 U CN204604861 U CN 204604861U
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Abstract
The utility model provides a kind of extruder.This extruder comprises: barrel, and barrel has temperature control dielectric space; Extrusion screw rod, extrusion screw rod is arranged in barrel rotationally, and extrusion screw rod comprises the screw rod that the axis along screw rod sets gradually and introduces section, spiro rod plasticizing section and Screw Extrusion section, and the spiral groove depth of spiro rod plasticizing section is less than the spiral groove depth that screw rod introduces section.This extruder efficiency is high.
Description
Technical field
The utility model relates to rubber processing, in particular to a kind of extruder.
Background technology
Current Rubber Extruder principal mode is the cold feeding of pin, and pin cold-feed extruding machine is the universal extruder of current rubber processing.As shown in Figure 1, pin 3 ' is fixed on machine barrel 2 ', and a part is inserted in the cannelure of screw rod 1 ', when screw rod 1 ' rotates, after sizing material enters extruder.After sizing material enters extruder, screw rod 1 ' propelling movement size migration makes sizing material and pin generation fricting shearing heat-dissipating make sizing material temperature raise and plastify.The shortcoming of pin cold-feed extruding machine is that fricting shearing heat-dissipating amount is comparatively large, and particularly when screw speed is higher, extruder tells glue difficult control of temperature below 105 DEG C.Because which limit the rotating speed of extruder, be generally no more than 80% of rated speed.Therefore tell glue amount not reach and specifiedly tell glue amount.
Utility model content
Main purpose of the present utility model is to provide a kind of extruder, tells the low problem of glue amount to solve extruder of the prior art.
To achieve these goals, according to an aspect of the present utility model, provide a kind of extruder, this extruder comprises: barrel, and barrel has temperature control dielectric space; Extrusion screw rod, extrusion screw rod is arranged in barrel rotationally, and extrusion screw rod comprises the screw rod that the axis along screw rod sets gradually and introduces section, spiro rod plasticizing section and Screw Extrusion section, and the spiral groove depth of spiro rod plasticizing section is less than the spiral groove depth that screw rod introduces section.
Further, the pitch of spiro rod plasticizing section is less than the pitch that screw rod introduces section.
Further, extrusion screw rod is provided with the axially extended endoporus along extrusion screw rod, extruder also comprises drainage tube, and drainage tube stretches in endoporus.
Further, endoporus introduces section and spiro rod plasticizing section through screw rod vertically successively, and endoporus has the expansion segment corresponding with spiro rod plasticizing section, and the wall thickness of spiro rod plasticizing section is less than the wall thickness that screw rod introduces section.
Further, the periphery of drainage tube is arranged with Water conservancy diversion core, and Water conservancy diversion core is positioned at the position corresponding with spiro rod plasticizing section.
Further, the perisporium of the expansion segment of endoporus is provided with the first helicla flute.
Further, barrel comprises: machine barrel, machine barrel is provided with the medium holes be communicated with temperature control dielectric space; Barrel liner, barrel liner is arranged in machine barrel, forms temperature control dielectric space between the outer wall of barrel liner and machine tube inner wall.
Further, the inwall of barrel liner is provided with the second helicla flute, the corresponding spiro rod plasticizing section of helicla flute.
Further, extrusion screw rod at least comprises first body of rod and second body of rod, and second body of rod is removably connected on first body of rod, and Screw Extrusion section is arranged on second body of rod.
Further, extruder also comprises stirring parts, stirring parts is fixedly installed in barrel, and stretch in the screw channel of extrusion screw rod, stirring parts is multiple, and the corresponding screw rod of a part of stirring parts is introduced section and arranged, and forms the first stirring group, the corresponding Screw Extrusion section of another part stirring parts is arranged, and forms the second stirring group.
Application the technical solution of the utility model, extruder comprises barrel and extrusion screw rod, barrel has temperature control dielectric space, extrusion screw rod is arranged in barrel rotationally, extrusion screw rod comprises the screw rod that the axis along screw rod sets gradually and introduces section, spiro rod plasticizing section and Screw Extrusion section, and the spiral groove depth of spiro rod plasticizing section is less than the spiral groove depth that screw rod introduces section.Extrusion screw rod is used for extruding after material plasticizing, use in order to subsequent handling, spiral groove depth due to spiro rod plasticizing section is less than the spiral groove depth that screw rod introduces section, this makes the material in spiro rod plasticizing section reduce, can carry out heating plasticizing by barrel to material, such temperature controls convenient, without the need to the heat plastifying material of the agitating friction by pin, the rotating speed of extrusion screw rod can be improved, and then improve the production efficiency of extruder.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the sectional structure schematic diagram of extruder of the prior art;
Fig. 2 shows the structural representation of the extruder according to embodiment of the present utility model; And
Fig. 3 shows the structural representation of the extruder with stirring parts according to embodiment of the present utility model;
Fig. 4 shows the structural representation of the barrel of the extruder according to embodiment of the present utility model;
Fig. 5 shows the partial sectional view with the first spiral fluted extrusion screw rod of the extruder according to embodiment of the present utility model;
Fig. 6 shows the structural representation of the extrusion screw rod of the extruder according to embodiment of the present utility model;
Fig. 7 shows the structural representation of the extrusion screw rod with drainage tube of the extruder according to embodiment of the present utility model;
Fig. 8 shows the structural representation of the extrusion screw rod with segmented screw fluxing zone of the extruder according to embodiment of the present utility model.
Wherein, above-mentioned accompanying drawing comprises the following drawings mark:
11, temperature control dielectric space; 12, machine barrel; 121, medium holes; 13, barrel liner; 131, the second helicla flute; 20, extrusion screw rod; 21, screw rod material feeding section; 22, screw rod introduces section; 23, spiro rod plasticizing section; 24, Screw Extrusion section; 25, endoporus; 251, the first helicla flute; 252, expansion segment; 30, drainage tube; 31, Water conservancy diversion core; 40, feeding hopper; 50, stirring parts; 51, sealing ring; 52, the section of being threaded.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
As shown in Fig. 2 to 8, according to embodiment of the present utility model, extruder comprises barrel and extrusion screw rod 20, barrel has temperature control dielectric space 11, extrusion screw rod 20 is arranged in barrel rotationally, extrusion screw rod 20 comprises the screw rod that the axis along screw rod sets gradually and introduces section 22, spiro rod plasticizing section 23 and Screw Extrusion section 24, and the spiral groove depth of spiro rod plasticizing section 23 is less than the spiral groove depth that screw rod introduces section 22.Extrusion screw rod 20 is for extruding after material plasticizing, use in order to subsequent handling, spiral groove depth due to spiro rod plasticizing section 23 is less than the spiral groove depth that screw rod introduces section 22, this makes the material in spiro rod plasticizing section 23 reduce, can carry out heating plasticizing by barrel 20 pairs of materials, such temperature controls convenient, without the need to the heat plastifying material of the agitating friction by pin, the rotating speed of extrusion screw rod 20 can be improved, and then improve the production efficiency of extruder.
Preferably, the pitch of spiro rod plasticizing section 23 is less than the pitch that screw rod introduces section 22.In spiro rod plasticizing section 23, there is more thread protrusion like this, effectively can increase and the contact of material and heat exchange area, can plasticizing effect be ensured, improve plasticizing efficiency simultaneously.
In conjunction with see Fig. 2 to 4, barrel comprises machine barrel 12 and barrel liner 13.Barrel liner 13 is arranged in machine barrel 12, and forms temperature control dielectric space 11 between the outer wall of barrel liner 13 and machine barrel 12 inwall.Machine barrel 12 is provided with the medium holes 121 be communicated with temperature control dielectric space 11.Temperature control dielectric space 11, for holding temperature control medium, to carry out heat exchange with the material on extrusion screw rod 20, makes material plasticizing.Medium holes 121 can install medium tube, by medium tube, temperature control medium is introduced in temperature control dielectric space 11.
Preferably, the outer wall of barrel liner 13 being provided with medium groove, the wall thickness of barrel liner 13 can be reduced by arranging medium groove, make the heat exchange between temperature control medium and material convenient, make plasticizing effect better.In the present embodiment, barrel liner 13 is two sections, two sections of axis along extrusion screw rod 20 set gradually, the degree of depth corresponding to the medium groove of the barrel liner 13 of spiro rod plasticizing section 23 is greater than the degree of depth of the medium groove of another section of barrel liner 13, to make temperature control medium can carry out heat exchange fully with material, with can accurate control temperature while ensureing material plasticizing effect.
In order to improve heat exchange area, and then improve heat exchange efficiency, the inwall of barrel liner 13 is provided with the second helicla flute 131, the corresponding spiro rod plasticizing section 23 of helicla flute.
In the present embodiment, the axis of extrusion screw rod 20 is disposed with screw rod material feeding section 21, screw rod introduces section 22, spiro rod plasticizing section 23 and Screw Extrusion section 24.
Wherein, screw rod feeding section 21 is for being introduced into material in the screw channel of extrusion screw rod 20.Machine barrel 12 is provided with feeding hopper 40, and feeding hopper 4 for holding material, and is arranged, to provide material to screw rod feeding section 21 corresponding to screw rod feeding section 21.
Screw rod introduces the downstream that section 22 is positioned at screw rod feeding section 21, and material screw rod feeding section 21 sent here is introduced in spiro rod plasticizing section 23.
Spiro rod plasticizing section 23 will send into Screw Extrusion section 24 after material plasticizing, extruded by the material after plasticizing by Screw Extrusion section 24.
Extrusion screw rod 20 is provided with the axially extended endoporus 25 along extrusion screw rod 20, extruder also comprises drainage tube 30, and drainage tube 30 stretches in endoporus 25.Drainage tube 30 can introduce temperature control medium in inward hole 25, improves heat transfer effect.
Preferably, in order to improve plasticizing effect, endoporus 25 introduces section 22 and spiro rod plasticizing section 23 through screw rod vertically successively, and endoporus 25 has the expansion segment 252 corresponding with spiro rod plasticizing section 23, and the wall thickness of spiro rod plasticizing section 23 is less than the wall thickness that screw rod introduces section 22.The internal diameter of expansion segment 252 is greater than the other parts of endoporus 25, can hold more temperature control medium, improves heat exchange efficiency, and the wall thickness of spiro rod plasticizing section 23 is less than the wall thickness that screw rod introduces section 22 can improve heat exchange efficiency further.
In order to improve the mobility of temperature control medium, and then ensure heat transfer effect, the periphery of drainage tube 30 is arranged with Water conservancy diversion core 31, and Water conservancy diversion core 31 is positioned at the position corresponding with spiro rod plasticizing section 23.
The perisporium of the expansion segment 252 of endoporus 25 can also be arranged the first helicla flute 251.The contact area of temperature control medium and spiro rod plasticizing section 23 can be improved by the first helicla flute 251, and then improve heat exchange efficiency.
Preferably, conveniently install, process and maintain, extrusion screw rod 20 at least comprises first body of rod and second body of rod, and second body of rod is removably connected on first body of rod, and Screw Extrusion section 24 is arranged on second body of rod.
In order to prevent temperature control media leaks, the position that second body of rod coordinates with first body of rod is provided with sealing ring 51 and the section of being threaded 52.The section of being threaded 52 is for being connected with first body of rod.
Preferably, in order to improve plasticizing effect, extruder also comprises stirring parts, stirring parts is fixedly installed in barrel, and stretches in the screw channel of extrusion screw rod 20, and stirring parts is multiple, the corresponding screw rod of part stirring parts is introduced section 22 and is arranged, and forming the first stirring group, the corresponding Screw Extrusion section 24 of another part stirring parts is arranged, and forms the second stirring group.By stirring parts, material is stirred, plasticizing effect can be improved further.In the present embodiment, stirring parts is pin 50.
Extruder of the present utility model mainly adopts temperature control medium and material-heat-exchanging to make material plasticizing when plastifying, the heat that pin stirs and friction generates is not relied on to plastify, temperature-controllable is higher, can improve the rotating speed of extrusion screw rod 20 simultaneously, and then can improve the load of extruder.The spiro rod plasticizing section 23 of extruder is arranged to thin-pass form, namely the spiral groove depth of spiro rod plasticizing section 23 diminishes, when material is by spiro rod plasticizing section 23, the heat exchange area of material and spiro rod plasticizing section 23 is the manyfolds at other position, material is plastified by heat exchange and lower frictional heat, and the temperature of material controls by the temperature control medium of extruder.
During work, extrusion screw rod 20 rotates under external drive, material is entered screw rod feeding section 21 by feeding hopper 40, is then entered spiro rod plasticizing section 23 by screw rod introducing section 22, by realizing plastifying with the temperature control media for heat exchange in temperature control dielectric space 11, the inwall of barrel liner 13 is carved with helicla flute for improving heat transfer effect and promoting that material moves along extrusion screw rod 20 direction.
Temperature control medium can select different materials according to demand, is temperature control water in the present embodiment, and the temperature of temperature control water can be selected according to demand.
The helicla flute of spiro rod plasticizing section 23 can be continuous print, also can be to disconnect.
From above description, can find out, the utility model the above embodiments achieve following technique effect: the extrusion efficiency of extruder improves, keeping under melting effect and the constant condition of plasticizing effect relative to the pin cold-feed extruding machine of equivalent specifications, promoting and tell glue amount and reduce energy consumption simultaneously.Tell glue amount and relatively improve 50-100%, torque reduces 20-50%.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. an extruder, is characterized in that, comprising:
Barrel, described barrel has temperature control dielectric space (11);
Extrusion screw rod (20), described extrusion screw rod (20) is arranged in described barrel rotationally, described extrusion screw rod (20) comprises the screw rod that the axis along described screw rod sets gradually and introduces section (22), spiro rod plasticizing section (23) and Screw Extrusion section (24), and the spiral groove depth of described spiro rod plasticizing section (23) is less than the spiral groove depth of described screw rod introducing section (22).
2. extruder according to claim 1, is characterized in that, the pitch of described spiro rod plasticizing section (23) is less than the pitch that described screw rod introduces section (22).
3. extruder according to claim 1, it is characterized in that, described extrusion screw rod (20) is provided with the axially extended endoporus (25) along described extrusion screw rod (20), described extruder also comprises drainage tube (30), and described drainage tube (30) stretches in described endoporus (25).
4. extruder according to claim 3, it is characterized in that, described endoporus (25) introduces section (22) and described spiro rod plasticizing section (23) through described screw rod vertically successively, described endoporus (25) has the expansion segment (252) corresponding with described spiro rod plasticizing section (23), and the wall thickness of described spiro rod plasticizing section (23) is less than the wall thickness that described screw rod introduces section (22).
5. extruder according to claim 4, is characterized in that, the periphery of described drainage tube (30) is arranged with Water conservancy diversion core (31), and described Water conservancy diversion core (31) is positioned at the position corresponding with described spiro rod plasticizing section (23).
6. the extruder according to claim 4 or 5, is characterized in that, the perisporium of the expansion segment (252) of described endoporus (25) is provided with the first helicla flute (251).
7. extruder according to claim 1, is characterized in that, described barrel comprises:
Machine barrel (12), described machine barrel (12) is provided with the medium holes (121) be communicated with described temperature control dielectric space (11);
Barrel liner (13), described barrel liner (13) is arranged in described machine barrel (12), forms described temperature control dielectric space (11) between the outer wall of described barrel liner (13) and described machine barrel (12) inwall.
8. extruder according to claim 7, is characterized in that, the inwall of described barrel liner (13) is provided with the second helicla flute (131), the corresponding described spiro rod plasticizing section (23) of described helicla flute.
9. extruder according to claim 1, it is characterized in that, described extrusion screw rod (20) at least comprises first body of rod and second body of rod, and described second body of rod is removably connected on described first body of rod, and described Screw Extrusion section (24) is arranged on described second body of rod.
10. extruder according to claim 1, it is characterized in that, described extruder also comprises stirring parts, described stirring parts is fixedly installed in described barrel, and stretches in the screw channel of described extrusion screw rod (20), and described stirring parts is multiple, the corresponding described screw rod of part stirring parts is introduced section (22) and is arranged, and forming the first stirring group, the corresponding described Screw Extrusion section (24) of stirring parts described in another part is arranged, and forms the second stirring group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520055542.9U CN204604861U (en) | 2015-01-27 | 2015-01-27 | extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520055542.9U CN204604861U (en) | 2015-01-27 | 2015-01-27 | extruder |
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| Publication Number | Publication Date |
|---|---|
| CN204604861U true CN204604861U (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520055542.9U Active CN204604861U (en) | 2015-01-27 | 2015-01-27 | extruder |
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| CN (1) | CN204604861U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105984109A (en) * | 2015-01-27 | 2016-10-05 | 青岛软控机电工程有限公司 | Extruder |
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2015
- 2015-01-27 CN CN201520055542.9U patent/CN204604861U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105984109A (en) * | 2015-01-27 | 2016-10-05 | 青岛软控机电工程有限公司 | Extruder |
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