CN205661020U - Non -circular cross -section cockscomb structure tangential pin - Google Patents
Non -circular cross -section cockscomb structure tangential pin Download PDFInfo
- Publication number
- CN205661020U CN205661020U CN201620523759.2U CN201620523759U CN205661020U CN 205661020 U CN205661020 U CN 205661020U CN 201620523759 U CN201620523759 U CN 201620523759U CN 205661020 U CN205661020 U CN 205661020U
- Authority
- CN
- China
- Prior art keywords
- pin
- section
- sizing material
- circular cross
- tangential
- 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
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- 241000561734 Celosia cristata Species 0.000 title abstract 3
- 210000001520 comb Anatomy 0.000 title abstract 3
- 239000000463 material Substances 0.000 abstract description 31
- 238000004513 sizing Methods 0.000 abstract description 28
- 230000000694 effects Effects 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 235000012438 extruded product Nutrition 0.000 abstract description 2
- 239000000945 filler Substances 0.000 abstract description 2
- 238000001125 extrusion Methods 0.000 description 7
- 238000012545 processing Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Abstract
The utility model belongs to rubber machinery processes the field, and that in particular to is a non -circular cross -section cockscomb structure tangential pin. This pin is on the basis of traditional circular section pin, with the cross -section design one -tenth rectangle of pin to the design has the cockscomb structure recess on the pin, has the pinhole in the design of the both ends of pin. The existence of recess can increase the area of contact of sizing material and pin on the one hand, and increase frictional force pulls the effect, assurance extruded product's quality and efficiency, improvement short -staple orientation effect, decentralization to the sizing material, the sizing material can form local little backward flow when flowing through the recess, have the effect of the mixed effect of improvement sizing material and filler. The installation can be simplified in the existence of pinhole, makes the installation convenient, and the material resources of using manpower sparingly are and that overall structure shows is more compact.
Description
Technical field:
This utility model belongs to rubber manufacturing machinery manufacture field, particularly to a kind of immixture with raising sizing material, changes
Kind extruded product quality, increases the tangential pin of on-circular cross-section zigzag of extrusion yield.
Background technology:
Extruder is the plasticizing extrusion equipment that rubber industry is particularly important.Along with the fast development of rubber industry, traditional
Extruder has been difficult to meet industrial demand；So for meeting needs, people have developed peg type cold-feed extrusion
Machine.Existing pin extruder based on radial direction pin extruder, its primary structure is: by pin along machine barrel circumferencial direction footpath
In the flow field inserting screw flight groove, each pin is axially all pointing to screw rod axis, often organizes and is distributed the most radially, with
Screw rod to rotate, the sizing material that radially pin convection current is dynamic carries out shearing, stirring and mixed flow, thus reaches sizing material plasticizing effect.But,
In actual production find, the pin under continuous duty has the danger that continued wear even ruptures, this be provided with many
It it is a most serious problem on the extruder of row's pin.Radially pin extruder there is also that self-cleaning is poor, pin is installed multiple
The problem such as miscellaneous.
In order to cater to the needs of market processing, people further provide tangential pin barrel extruder: tangential peg type squeezes
Going out machine based on common radially pin cold feed extruder, tangential pin is extended through the another of machine barrel by the side of square machine barrel
Side, and pin and screw rod, screw channel are tangent, tangential pin still continues the circular structure using radially pin.Tangential pin enters
One step strengthens shearing, stirring and the rubbing action that sizing material is subject in flow process.In the course of processing, sizing material become melt with
Low shear rate flows through pin in screw flight, and tangential pin has frictional drag effect, makes sizing material gradually form continuously
Rheid, so not only broken up sizing material laminar flow in extrusion and caking phenomenon, meet simultaneously sizing material plastify,
Glue temperature is low, the requirement of device energy conservation, simplifies production technology；Meanwhile, the pin of tangential pin barrel extruder in machine barrel with letter
The form of strutbeam is placed, and reduces the requirement to pin intensity in work process, and this reduces extruder to a certain extent and adds
Technological requirement during work, has saved cost.
Along with the development of rubber industry, tangential pin extruder becomes the advantage in producing all the more obvious at rubber, and people are to it
Research the most deep, such as " a kind of mixed pin barrel cold feeding extruder (ZL201110025653.1) carries patent
Supply a kind of mixed pin barrel cold feeding extruder.Wherein include the tangential pin in a kind of circular section, its object is to
Radially bayonet fittings, to reach to improve the purpose of plasticizing effect.But actual processing shows, this extruder orientation to chopped fiber
Effect and degree of scatter do not obtain particularly effective improvement.This is due to the tangential pin in circular section traditionally and sizing material
Contact area less, more weak to the active force of sizing material.
Summary of the invention:
It is an object of the invention to overcome the deficiency of circular section pin in existing tangential pin cold feed extruder, seek
Design a kind of can be effectively improved sizing material plasticizing, the tangential pin of on-circular cross-section zigzag of extrusion effect.The present invention is to pass
It is rectangular pin that system circular section pin changes over cross section, and increases saw-tooth grooves, sawtooth in the working region of pin
The existence of shape groove has the contact area increasing sizing material with pin, improves cooling effect, adds sizing material and pin simultaneously
Between frictional force so that it is drag interaction strengthen, improve extrusion capacity；And when sizing material flows through incised groove position, glue
The volume of material can change along with groove shapes, and this stretching action that sizing material is subject to strengthens, and plasticizing effect increases；Groove
Inside it is easily formed micro-backflow, the effect of the mixed effect of strengthening sizing material.The two ends of pin are designed with pin hole, and pin-and-hole can simplify peace
Process of assembling, makes installation convenient, uses manpower and material resources sparingly and that overall structure is aobvious is the compactest.
The size of on-circular cross-section zigzag of the present invention tangential pin working region is true according to pitch and the degree of depth of screw flight
Fixed.The interference situation of the tangential pin of on-circular cross-section zigzag and screw rod in the course of processing so can be avoided to occur.Non-meeting
Under conditions of circular section zigzag tangential pin requirement of strength, the number of the tangential pin of on-circular cross-section zigzag, working region
Size, the size of non-active area, the size of sawtooth should consider actual processing request and not interfere the rotation of screw rod true
Fixed.
Accompanying drawing illustrates:
Fig. 1 is the front view of the tangential pin of on-circular cross-section zigzag in the present invention
Wherein: 1-pin-and-hole, 2 left non-active area, 3-working region, 4 right non-active area, 5 inclinations angle, 6
Saw-tooth grooves
Fig. 2 is the left view of the tangential pin of on-circular cross-section zigzag in the present invention
Fig. 3 be in the present invention sizing material at the flow schematic diagram of the tangential pin of on-circular cross-section zigzag
Wherein the direction of arrow is the direction of sizing material flowing
Fig. 4 is the sectional view of on-circular cross-section zigzag tangential pin staple cloth in the present invention
Wherein: the 7 tangential pins of on-circular cross-section zigzag, 8 machine barrels, 9 screw rods
Detailed description of the invention:
Below against accompanying drawing and combine specific implementation method the present invention will be further described.
The present invention is to provide the pin portion of tangential pin cold-feed extruding machine, this part is to be sold by 1-as shown in Figure 1
Hole, 2 left non-active area, 3-working region, 4 right non-active area, 5 inclinations angle, 6 saw-tooth grooves compositions.Pin
Nail is fixed in machine barrel 8 by the pin-and-hole 1 at two ends, and Fig. 4 can show the relative position of pin and machine barrel, and the radius of pin-and-hole is
3mm, pin-and-hole center of circle distance end face 2mm；Left non-active area 2 is the same with the size of right non-active area 4, with the hole on machine barrel 8
In interference fits, its a length of 45mm, width are 7mm, height is 10mm；As shown in Figure 4, sizing material flows in extruder barrel
During need the variable volume closed area that collectively forms through the tangential pin of on-circular cross-section zigzag 7 and machine barrel 8, screw rod 9, should
The stretching action that the change in volume in region makes sizing material be subject to strengthens, and plasticizing effect increases, a length of 40mm of working region 3,
Width is 6mm, height is 8mm, including 1 saw-tooth grooves 6, as it is shown on figure 3, sizing material is when flowing through saw-tooth grooves 6
Can form micro-backflow, the mixed effect of sizing material is strengthened, and the size of saw-tooth grooves is: a length of 25mm, the degree of depth be 3mm,
Width is 6mm, inclination angle 5 is 30 °.
The tangential pin of on-circular cross-section zigzag of the present invention can effectively improve the mixed effect of sizing material and filler, it is ensured that squeezes
Going out the quality of goods, on the premise of not changing extruder agent structure, it is left that short fiber orientation effect, dispersion can improve 10%
The right side, sizing material causes because temperature is too high in extrusion simultaneously degraded and incipient scorch problem are effectively improved.
Claims (4)
1. the tangential pin of on-circular cross-section zigzag, it is characterised in that: pin main part includes pin-and-hole (1), left inoperative
Region (2), working region (3), right non-active area (4), inclination angle (5), saw-tooth grooves (6), the pin pin by two ends
Hole (1) is fixed in machine barrel (8)；Saw-tooth grooves (6) is had on working region (3).
A kind of tangential pin of on-circular cross-section zigzag the most according to claim 1, it is characterised in that: inclining of saw-tooth grooves
The preferred values of the sharping (5) of hypotenuse is 30 °.
A kind of tangential pin of on-circular cross-section zigzag the most according to claim 1, it is characterised in that: pin cross section is square
Shape.
A kind of tangential pin of on-circular cross-section zigzag the most according to claim 1, it is characterised in that: the left inoperative of pin
Region (2) and right non-active area (4) are interference fits with machine barrel (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620523759.2U CN205661020U (en) | 2016-06-01 | 2016-06-01 | Non -circular cross -section cockscomb structure tangential pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620523759.2U CN205661020U (en) | 2016-06-01 | 2016-06-01 | Non -circular cross -section cockscomb structure tangential pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205661020U true CN205661020U (en) | 2016-10-26 |
Family
ID=57159079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620523759.2U Expired - Fee Related CN205661020U (en) | 2016-06-01 | 2016-06-01 | Non -circular cross -section cockscomb structure tangential pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205661020U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107914378A (en) * | 2017-12-15 | 2018-04-17 | 桂林橡胶设计院有限公司 | Extruder is vented pin and extruder exhaust system |
-
2016
- 2016-06-01 CN CN201620523759.2U patent/CN205661020U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107914378A (en) * | 2017-12-15 | 2018-04-17 | 桂林橡胶设计院有限公司 | Extruder is vented pin and extruder exhaust system |
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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: 20161026 Termination date: 20170601 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |