CN205021951U - Can adjust plastics material shear strength's extruder head structure - Google Patents
Can adjust plastics material shear strength's extruder head structure Download PDFInfo
- Publication number
- CN205021951U CN205021951U CN201520783280.8U CN201520783280U CN205021951U CN 205021951 U CN205021951 U CN 205021951U CN 201520783280 U CN201520783280 U CN 201520783280U CN 205021951 U CN205021951 U CN 205021951U
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- Prior art keywords
- orifice plate
- shear strength
- utility
- model
- machine barrel
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- Expired - Fee Related
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a can adjust plastics material shear strength's extruder head structure. The utility model discloses a be equipped with the structure of fixed orifice plates and activity orifice plate between barrel and bush, change the porous flow area of plastic melt after utilization activity orifice plate moves to change the resistance that the plastic melt passes through in aircraft nose department, and then change the pressure of material in the extruder barrel, reach and adjust the purpose of extruder to material shear strength. The utility model discloses the lead screw is the removal of adjustment activity orifice plate on line, and is easy and simple to handle, efficient. The utility model discloses reliable and simple, low cost, excellent in use effect.
Description
Technical field
The utility model relates to the technical field of plastic blend modification, relates to a kind of cross-head structure that can regulate material shear strength particularly.
Background technology
Screw extruder is widely used in polymeric material blending and modifying, rely on the intensive shear effect that screw rod provides in the molten state, by each component Homogeneous phase mixing, and under the effect of mechanical force, improve the compatibility of component, possess the prerequisite of certain compatibility between component under, shear action is stronger, Dispersed Phase Size is less, and the amplitude that performance improves is larger.But excessive shearing also can make the overheated generation degraded of component, decompose or oxidation, and has a negative impact to performance, and therefore the control of shear strength is very important.The screw extruder that plastic blend modification uses, usually adopt the mode changing building block system screw thread original paper to regulate extruder to the shear strength of material at present, efficiency is lower, is especially not easy to instant adjustment, limits the raising of the quality of blending and modifying plastics.
Summary of the invention
The purpose of this utility model is: provide a kind of cross-head structure that can regulate material shear strength, and its online instant shear strength regulating plastics materials, efficiency is high, to overcome the deficiencies in the prior art.
The utility model is achieved in that the cross-head structure that can regulate plastics materials shear strength, comprise machine barrel, mouth mould, fixing orifice plate and removable orifice plate is provided with between machine barrel and mouth mould, the plastic melt that fixing orifice plate and removable orifice plate are provided with porous extrudes through hole, outside the end of machine barrel and between removable orifice plate, being provided with pressing plate, being provided with slideway back-up block between pressing plate and fixing orifice plate, is the connected mode of slide rail slideway between slideway back-up block and removable orifice plate; Mouth mould, fixing orifice plate, slideway back-up block and pressing plate and machine barrel are fixed as one; Slideway back-up block is provided with support, support is provided with and regulates screw mandrel or oil cylinder, regulate screw mandrel or oil cylinder to be connected with the end of removable orifice plate by connecting rod.Removable orifice plate can be made to move in slideway by screw mandrel or oil cylinder cylinder movement.
Pressure sensor is provided with at the port of export of machine barrel.
Owing to adopting above technical scheme, the utility model adopts the structure being provided with fixing orifice plate and removable orifice plate between machine barrel and mouth mould, removable orifice plate is utilized to move rear change plastic melt cellular flow passages area, thus the resistance that change plastic melt passes through at head place, and then the pressure of plastics materials in change extruder barrel, reach and regulate extruder to the object of material cutting intensity, in machine barrel, the pressure of plastics materials is larger, and the shear strength that material is subject to is larger.The utility model screw mandrel gets final product the movement of on-line tuning removable orifice plate, and easy and simple to handle, efficiency is high.The utility model is simple, with low cost, and result of use is good.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the drive part of removable orifice plate of the present utility model;
Fig. 3 is the A-A sectional view of Fig. 2;
Fig. 4, Fig. 5 are use schematic diagram of the present utility model.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail, but not as to restriction of the present utility model.
Embodiment of the present utility model: the cross-head structure of plastics materials shear strength in extruder can be regulated as shown in the figure, comprise machine barrel 1, mouth mould 2, fixing orifice plate 3 and removable orifice plate 4 is provided with between machine barrel 1 and mouth mould 2, the plastic melt that fixing orifice plate 3 and removable orifice plate 4 are provided with position and porous corresponding to size extrudes through hole, pressing plate 5 is provided with outside the end of machine barrel 1 and between removable orifice plate 4, between pressing plate 5 and fixing orifice plate 3, be provided with slideway back-up block 7, be the connected mode of slide rail slideway between slideway back-up block 7 and removable orifice plate 4; Mouth mould 2, fixing orifice plate 3, slideway back-up block 7 and pressing plate 5 are fixed as one with machine barrel 1; Slideway back-up block 7 is provided with support 8, support 8 is provided with and regulates screw mandrel 9, regulate screw mandrel 9 to be connected with the end of removable orifice plate 4 by connecting rod 10; Pressure sensor 6 is provided with at the port of export of machine barrel 1.
Fix extruding the complete overlap of through hole energy or partly overlapping in orifice plate 3 and removable orifice plate 4 and form melt canal; Under normal conditions, in fixing orifice plate 3 and removable orifice plate 4 to extrude through hole completely overlapping, melt is minimum by resistance, as shown in Figure 4; And when removable orifice plate 4 is after being moved, its overlapping area extruding through hole extruding through hole and fixing orifice plate 3 changes, the aperture area of two porous plates hole overlap reduces, the resistance that melt passes through increases, in machine barrel, material pressure increases, and shear strength increases, as shown in Figure 5; Thus by changing the resistance that plastic melt passes through at head place, and then change the pressure of plastics materials in extruder barrel, reach and regulate extruder to the object of material cutting intensity.
Claims (2)
1. one kind can regulate the cross-head structure of plastics materials shear strength, comprise machine barrel (1), mouth mould (2), it is characterized in that: between machine barrel (1) and mouth mould (2), be provided with fixing orifice plate (3) and removable orifice plate (4), fixing orifice plate (3) and removable orifice plate (4) are provided with position and plastic melt corresponding to size extrudes through hole, pressing plate (5) is provided with outside the end of machine barrel (1) and between removable orifice plate (4), slideway back-up block (7) is provided with between pressing plate (5) and fixing orifice plate (3), it is the connected mode of slide rail slideway between slideway back-up block (7) and removable orifice plate (4), mouth mould (2), fixing orifice plate (3), slideway back-up block (7) and pressing plate (5) are fixed as one with machine barrel (1), slideway back-up block (7) is provided with support (8), support (8) is provided with and regulates screw mandrel or oil cylinder (9), regulate screw mandrel or oil cylinder (9) to be connected by the end of connecting rod (10) with removable orifice plate (4).
2. the cross-head structure that can regulate plastics materials shear strength according to claim 1, is characterized in that: be provided with pressure sensor (6) at the port of export of machine barrel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520783280.8U CN205021951U (en) | 2015-10-10 | 2015-10-10 | Can adjust plastics material shear strength's extruder head structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520783280.8U CN205021951U (en) | 2015-10-10 | 2015-10-10 | Can adjust plastics material shear strength's extruder head structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205021951U true CN205021951U (en) | 2016-02-10 |
Family
ID=55254515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520783280.8U Expired - Fee Related CN205021951U (en) | 2015-10-10 | 2015-10-10 | Can adjust plastics material shear strength's extruder head structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205021951U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105922536A (en) * | 2016-06-29 | 2016-09-07 | 张家港白熊科美机械有限公司 | Squeezing drying granulating machine and adjustable mouth mold device thereof |
-
2015
- 2015-10-10 CN CN201520783280.8U patent/CN205021951U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105922536A (en) * | 2016-06-29 | 2016-09-07 | 张家港白熊科美机械有限公司 | Squeezing drying granulating machine and adjustable mouth mold device thereof |
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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: 20160210 Termination date: 20171010 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |