CN209599800U - Double screw extruder observation base sealing structure - Google Patents
Double screw extruder observation base sealing structure Download PDFInfo
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- CN209599800U CN209599800U CN201920170326.7U CN201920170326U CN209599800U CN 209599800 U CN209599800 U CN 209599800U CN 201920170326 U CN201920170326 U CN 201920170326U CN 209599800 U CN209599800 U CN 209599800U
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- pedestal
- top cover
- double screw
- screw extruder
- observation base
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Abstract
The utility model be solve double screw extruder observation base in the prior art sealing ring it is easy to aging, the technical issues of need to frequently replacing, provide a kind of double screw extruder observation base sealing structure, including pedestal and top cover, transparent windows are embedded in top cover, top cover is movably arranged at the top of pedestal, and pedestal is provided with a ring slot, tetrafluoro copper powder wear ring is installed, the inner face of top cover is crimped with the top end face of tetrafluoro copper powder wear ring in annular groove.Tetrafluoro copper powder wear ring highest is resistant to 280 DEG C of high temperature, and the temperature in extruder is about 200 DEG C, it is able to bear the high temperature of extruder, service life is not influenced substantially by extruder high temperature, projected life can be reached, under normal circumstances, replacement in wear ring 1 year is primary, it is not only time saving and energy saving, but also will not influence the normal production of extruder.
Description
Technical field
The utility model relates to plastic particle production equipment technical fields, especially relate to double screw extruder.
Background technique
Extrusion molding is one of important forming method of plastic processing, and most of thermoplastic can use extrusion molding
Method processing.Extrusion molding is so that material is continued through mouth mold molding with flow regime by heating, pressurization in an extruder
Method, also referred to as " extrusion molding ".One extruder molding equipment is generally made of host (extruder), subsidiary engine and control system,
Wherein, the most common type of host is double screw extruder.
The transparent of extrusion screw rod working condition can be observed by being provided at the top of the extrusion work department of double screw extruder
Observation window, through observation window can not timing monitoring twin-screw working condition, and the flow regime of molten plastic can be observed simultaneously.
Later, it is the cleaning convenient for squeezing out putty in work department, the openable observation base of top cover is provided on squeezing out work department, it is transparent
Observation window is set in top cover, when there is putty situation or extrusion item forms impurity, by opening top cover just
It can be cleared up inside work department squeezing out.It is sealed between top cover and pedestal using sealing ring, but squeezes out work department
Temperature is higher, and existing sealing ring high temperature resistance is bad, and meeting quick aging under the influence of extruder high temperature, service life is not
It more than one month, needs to regularly replace, it is not only time-consuming and laborious frequently to replace sealing ring, but also have an effect on the normal of double screw extruder
Production.
Utility model content
Technical problem to be solved in the utility model is the purpose how realized without frequently replacement observation base sealing ring.
In order to solve the above technical problems, the technical solution adopted in the utility model is as follows:
Double screw extruder observation base sealing structure, including pedestal and top cover are embedded with transparent windows in the top cover,
The top cover is movably arranged at the top of the pedestal, and the pedestal is provided with a ring slot, is equipped with tetrafluoro copper in the annular groove
Powder wear ring, the inner face of the top cover are crimped with the top end face of the tetrafluoro copper powder wear ring.
Further, the top end face of the tetrafluoro copper powder wear ring, which is provided with, is covered in extension on the pedestal top end face
Side；Alternatively, the top end face of the tetrafluoro copper powder wear ring is provided with the extension side for coating the pedestal top end face.
Further, the plate-like structure of top cover, hinged with the pedestal, and snap close piece is used using the other end
It is connected with the pedestal；Alternatively, the top cover is in bottle lid-like, there is the side wall being sleeved on outside the pedestal, it is described
Top cover is connected using snap close piece and the pedestal.
Further, the bottom surface of the side wall is provided with the outwardly extending skirt of a circle, the pedestal is provided with and institute
The step of skirt cooperation is stated, the snap close piece is bolt, passes through the skirt with the bolt and realizes the top cover and the seat
Body is connected.
Further, being equipped with polyparaphenylene seal between the skirt and step surface.
Further, being equipped with polyparaphenylene seal between the interior of the top cover and the pedestal lateral wall.
The beneficial effects of the utility model are:
1. the sealing between top cover and pedestal is using high temperature resistant, high voltage bearing tetrafluoro copper powder wear ring, this wear ring
Highest is resistant to 280 DEG C of high temperature, and the temperature in extruder is about 200 DEG C, therefore it is able to bear the high temperature of extruder, makes
It is not influenced substantially by extruder high temperature with the service life, projected life can be reached, under normal circumstances, replacement in wear ring 1 year is primary
, it is not only time saving and energy saving, but also will not influence the normal production of extruder；
2. the extension side of wear ring top end face setting, increases the sealing area between top cover and pedestal, improves top cover
Sealing performance between pedestal；
3. polyparaphenylene seal is using polytetrafluoroethylene (PTFE) as parent, filling polyphenyl powder and other raw materials carry out hybrid guided mode
Pressure is made through high temperature sintering cooling, is able to bear 330 DEG C of high temperature, and have good self-lubricating property, is used to push up
Between lid and pedestal, does not influence the installation of top cover not only, dual-seal or triple seal are also constituted with wear ring, improve top
Sealing performance between lid and pedestal.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described.
Fig. 1 is the structural schematic diagram of double screw extruder observation base in embodiment one；
Fig. 2 is the structural schematic diagram of double screw extruder observation base in embodiment two；
Fig. 3 is another structural schematic diagram of double screw extruder observation base in embodiment two；
Fig. 4 is the structural schematic diagram of double screw extruder observation base in embodiment three；
Fig. 5 is the structural schematic diagram of double screw extruder observation base in example IV.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe.
Embodiment one
Referring to Fig. 1, double screw extruder observation base sealing structure, including pedestal 10 and top cover 20 are embedded in top cover 20
Transparent windows, top cover 20 are movably arranged on 10 top of pedestal, and pedestal 10 is provided with a ring slot, is equipped with tetrafluoro copper in annular groove
The inner face of powder wear ring 30, top cover 20 is crimped with the top end face of tetrafluoro copper powder wear ring 30.
Tetrafluoro copper powder wear ring makes it have excellent wear-resistant creep-resistant property, object by addition copper powder and molybdenum disulfide
Property density reaches 3.5-3.8, and the wearability of this material is the hundreds of times of pure polytetrafluoroethylene (PTFE), and sport life span compares silicone rubber seal
Long, -180~280 DEG C of adaptive temperature range, sealed pressure reaches 30MPa.Sealing between top cover 20 and pedestal 10 is using above-mentioned resistance to
High temperature, high voltage bearing tetrafluoro copper powder wear ring 30, this wear ring are able to bear the high temperature of extruder, and service life is not substantially by crowded
The influence of machine high temperature out can reach projected life, and under normal circumstances, replacement in wear ring 1 year is primary, not only time saving province
Power, but also will not influence the normal production of extruder.
Embodiment two
The present embodiment is based on embodiment one, and referring to fig. 2, the top end face of tetrafluoro copper powder wear ring 30, which is provided with, is covered in pedestal
Extension side 40 on 10 top end faces.Alternatively, the top end face of tetrafluoro copper powder wear ring 30 is provided with cladding 10 top of pedestal referring to Fig. 3
The extension side 40 in face.Extension side increases the sealing area between top cover 20 and pedestal 10, improve top cover 20 and pedestal 10 it
Between sealing performance.
Embodiment three
The present embodiment is based on embodiment two, and the plate-like structure of top cover 20 is hinged with pedestal 10, and is used using the other end
Snap close piece and pedestal 10 are connected.Referring to fig. 4, snap close piece includes the bolt 51 for installing 20 side of top cover, and is mounted on pedestal 10
The hasp 52 of side, hasp rotates upwards, so that bolt 51 is inserted into hasp and realizes being connected for cover board and pedestal.
Example IV
The present embodiment is based on embodiment two, and top cover 20 is in bottle lid-like, has the side wall being sleeved on outside pedestal 10
21, top cover 20 is connected using snap close piece and pedestal 10.Referring to Fig. 5, the bottom surface of side wall is provided with the outwardly extending skirt 22 of a circle,
Pedestal 10 is provided with the step cooperated with skirt 22, and snap close piece is bolt 50, passes through skirt 22 with bolt and realizes top cover 20 and seat
Body 10 is connected.
Polyparaphenylene seal 60 is installed between skirt 22 and step surface.The interior and 10 lateral wall of pedestal of top cover 20
Between polyparaphenylene seal 70 is installed.Polyparaphenylene seal is to fill polyphenyl powder and other using polytetrafluoroethylene (PTFE) as parent
Raw material carries out mixing molding, is made through high temperature sintering cooling, is able to bear 330 DEG C of high temperature, and have good from profit
Slip energy is used between top cover 20 and pedestal 10, does not influence the installation of top cover 20 not only, is also constituted with wear ring dual close
Envelope or triple seal, improve the sealing performance between top cover 20 and pedestal 10.
The a variety of of these embodiments are repaired by this will be readily apparent to those skilled in the art, herein
Defined General Principle can be real in other embodiments without departing from the spirit or scope of the present utility model
It is existing.Therefore, the present invention will not be limited to the embodiments shown herein, and be to fit to it is disclosed herein
Principle and the consistent widest scope of features of novelty.
Claims (8)
1. double screw extruder observation base sealing structure, which is characterized in that including pedestal (10) and top cover (20), the top cover
(20) transparent windows are embedded in, the top cover (20) is movably arranged at the top of the pedestal (10), and the pedestal (10) sets
It is equipped with a ring slot, tetrafluoro copper powder wear ring (30), the inner face and described four of the top cover (20) are installed in the annular groove
The top end face of fluorine copper powder wear ring (30) crimps.
2. double screw extruder observation base sealing structure according to claim 1, which is characterized in that the tetrafluoro copper powder is resistance to
The top end face of bull ring (30), which is provided with, is covered in extension side (40) on the pedestal (10) top end face.
3. double screw extruder observation base sealing structure according to claim 1, which is characterized in that the tetrafluoro copper powder is resistance to
The top end face of bull ring (30) is provided with the extension side (40) for coating pedestal (10) top end face.
4. double screw extruder observation base sealing structure according to claim 2 or 3, which is characterized in that the top cover
(20) plate-like structure is articulated and connected with the pedestal (10), and using the other end using snap close piece and the pedestal (10)
It is connected.
5. double screw extruder observation base sealing structure according to claim 2 or 3, which is characterized in that the top cover
(20) be in bottle lid-like, have and be sleeved on the external side wall of the pedestal (10), the top cover (20) using snap close piece with
The pedestal (10) is connected.
6. double screw extruder observation base sealing structure according to claim 5, which is characterized in that the bottom surface of the side wall
It is provided with the outwardly extending skirt of a circle (22), the pedestal (10) is provided with the step with the skirt (22) cooperation, described
Snap close piece is bolt, passes through the skirt (22) with the bolt and realizes being connected for the top cover (20) and the pedestal (10).
7. double screw extruder observation base sealing structure according to claim 6, which is characterized in that the skirt and step
Polyparaphenylene seal is installed between face.
8. double screw extruder observation base sealing structure according to claim 7, which is characterized in that the side wall of the top cover
It is internal that polyparaphenylene seal is installed between the pedestal lateral wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920170326.7U CN209599800U (en) | 2019-01-31 | 2019-01-31 | Double screw extruder observation base sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920170326.7U CN209599800U (en) | 2019-01-31 | 2019-01-31 | Double screw extruder observation base sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209599800U true CN209599800U (en) | 2019-11-08 |
Family
ID=68402948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920170326.7U Active CN209599800U (en) | 2019-01-31 | 2019-01-31 | Double screw extruder observation base sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209599800U (en) |
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2019
- 2019-01-31 CN CN201920170326.7U patent/CN209599800U/en active Active
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