1. A pipe extrusion die apparatus comprising:
a straight mandrel section comprising:
an inner flow passageway having a first cross-sectional area; and
an outer flow passageway substantially concentric with the inner flow passageway, the outer flow passageway having a second cross-sectional area;
an inlet flow passageway disposed in fluid communication with the inner and outer flow passageways;
a ratio defining section disposed at an upstream end of the straight mandrel section, the ratio defining section having a ratio adjusting tube substantially concentric with, and configured to translate axially along an inner surface of, the inner flow passageway, the ratio adjusting tube having a tapered face movably disposed between being contiguous with the inner surface and being in blocking engagement between the inlet flow passageway and the inner flow passageway; and
an outlet section disposed at a downstream end of the straight mandrel section, the outlet section having an inner flow passageway outlet and an outer flow passageway outlet.
2. The pipe extrusion die apparatus of claim 1, wherein the inner and outer flow passageways communicate with the inlet flow passageway at a location substantially proximate to the ratio adjusting tube.
3. The pipe extrusion die apparatus of claim 1, further comprising an inner flow supply disposed in fluid communication between the inlet flow passageway and the inner flow passageway; and an outer flow supply disposed in fluid communication between the inlet flow passageway and the outer flow passageway.
4. The pipe extrusion die apparatus of claim 1, wherein the inner flow passageway is disposed in fluid communication with an inner flow passageway exit and the outer flow passageway is disposed in fluid communication with an outer flow passageway exit.
5. The pipe extrusion die apparatus of claim 3, wherein the tapered face is contiguous with the inner surface when the ratio adjusting tube is axially retracted, and at least partially obstructs the inner flow supply when the ratio adjusting tube is axially extended.
6. The pipe extrusion die apparatus of claim 1, wherein the ratio adjusting tube is configured to define a ratio of material distributed between the inner flow passageway and the outer flow passageway.
7. The pipe extrusion die apparatus of claim 3, wherein the ratio adjusting tube is configured to selectively and variably block a portion of the inner flow supply.
8. The pipe extrusion die apparatus of claim 3, further comprising a plurality of threaded bolts, said plurality of threaded bolts being configured to linearly translate the ratio adjusting tube relative to the inner flow supply.
9. A multilayer pipe extrusion die apparatus comprising:
an inner flow passageway having a first, annular cross-sectional area that extends along a central axis of the die apparatus;
an outer flow passageway having a second, annular cross-sectional area that extends along the central axis, substantially concentric with the inner flow passageway;
an inlet flow passageway disposed radially outward from, and in fluid communication with, the inner and outer flow passageways;
a ratio defining region configured to convey material from the inlet flow passageway, radially inward toward the inner and outer flow passageways; and
a ratio adjusting tube disposed in the ratio defining region and configured to translate axially along an inner surface of the inner flow passageway, the ratio adjusting tube having a tapered face movably disposed between alignment with the inner surface and at least partial obstruction of the inner flow passageway, wherein the ratio adjusting tube is configured to adjust a proportion of material distributed from the inlet flow passageway between the inner flow passageway and the outer flow passageway.
10. The multilayer pipe extrusion die apparatus of claim 9, wherein the inner and outer flow passageways communicate with the inlet flow passageway at a location substantially proximate to the ratio adjusting tube.
11. The multilayer pipe extrusion die apparatus of claim 9, further comprising an inner flow supply disposed in fluid communication between the inlet flow passageway and the inner flow passageway; and an outer flow supply disposed in fluid communication between the inlet flow passageway and the outer flow passageway.
12. The multilayer pipe extrusion die apparatus of claim 9, wherein the inner flow passageway is disposed in fluid communication with an inner flow passageway exit and the outer flow passageway is disposed in fluid communication with an outer flow passageway exit.
13. The multilayer pipe extrusion die apparatus of claim 11, wherein the tapered face is contiguous with the inner surface when the ratio adjusting tube is axially retracted, and at least partially obstructs the inner flow supply when the ratio adjusting tube is axially extended.
14. The multilayer pipe extrusion die apparatus of claim 9, wherein the ratio adjusting tube is configured to define a ratio of material distributed between the inner flow passageway and the outer flow passageway.
15. The multilayer pipe extrusion die apparatus of claim 11, wherein the ratio adjusting tube is configured to selectively and variably block a portion of the inner flow supply.
16. The multilayer pipe extrusion die apparatus of claim 11, further comprising a plurality of threaded bolts, said plurality of threaded bolts being configured to linearly translate the ratio adjusting tube relative to the inner flow supply.
17. A method for distributing material through a pipe extrusion die apparatus comprising:
providing a straight mandrel section comprising an inner flow passageway having a first cross-sectional area, and an outer flow passageway, substantially concentric with the inner flow passageway, the outer flow passageway having a second cross-sectional area;
providing an inlet flow passageway radially outward from, and in communication with, the inner and outer flow passageways;
providing a ratio adjusting tube substantially concentric with, and configured to translate axially along an inner surface of, the inner flow passageway, the ratio adjusting tube having a tapered face movably disposed between being contiguous with the inner surface and being in blocking engagement between the inlet flow passageway and the inner flow passageway;
distributing material from the inlet flow passageway radially inward to the inner and outer flow passageways; and
controlling a proportion of material conveyed between the inner and outer flow passageways by translating the ratio adjusting tube axially in relation to the inner flow passageway.
18. The method of claim 17, wherein the material is one of polypropylene, polyvinylchloride, or high-density polyethylene.
19. The method of claim 17, wherein the proportion of material conveyed to the inner flow passageway is about 30%.
20. The method of claim 17, further comprising adjusting the ratio adjusting tube to maintain constant material flow properties along the straight mandrel section.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A toner cartridge for the use in image processing system, comprising:
a rotary container body which is used to store the toner;
a toner discharge port which comprises a cylinder, wherein an end of the cylinder is connected with the rotary container body and the other end of the cylinder is provided with a cap; the cylinder has a toner discharge opening; and the cap is provided with a connection component compartment which is formed by outward extension of the cap;
a sealing component, which is installed inside the cylinder and it opens or closes the toner discharge opening through its axial movement;
a driving rod which is used to drive the sealing component for axial movement; an end of the driving rod passes through the cap into the cylinder and is connected with the sealing component; and the cap has an opening for the driving rod to pass through;
a connection component which is slide-connected with the inner wall of the connection component compartment; the connection component compartment rotates with the connection component and it has several hook-shaped projections; the side surface of the hook-shaped projections is sloped or arc-shaped;
a transmission component which is slide-connected with the connection component, wherein the connection component rotates with the transmission component; and the transmission component has at least one driving projection;
wherein the driving rod of the sealing component drives the sealing component to move axially, which opens the toner discharge opening.
2. The toner cartridge of claim 1, wherein the outline of the side surface of the driving projection is a triangle or arc.
3. The toner cartridge of claim 1, wherein the connection component comprises a circle-shaped base and several elastic linking arms which extend axially from the circle of the circle-shaped base; the hook-shaped projections are formed at the end of the elastic linking arms; and the base has an opening which allows the driving rod of the sealing component to pass through.
4. The toner cartridge of claim 3, wherein the inner wall of the connection component compartment is provided with axially extending ridges and the external periphery of the base is provided with sliding grooves which cooperate with the ridges.
5. The toner cartridge of claim 3, wherein the base has a positioning post that extends axially from the base; the transmission component has a bottom; and the bottom has a positioning opening which cooperates with the positioning post.
6. The toner cartridge of claim 5, wherein the bottom has an elastic driving arm that extends from the bottom; the driving projection is formed at the end of the elastic driving arm; and the bottom has an opening to allow the driving rod of the sealing component to pass through.
7. The toner cartridge of claim 1, wherein the sealing component comprises a ring and a sleeve which is coaxial with the ring; and the driving rod of the sealing component is fixed inside the sleeve.
8. The toner cartridge of claim 7, wherein the sleeve is provided with two opposite openings; the end of the driving rod of the sealing component is provided with two elastic latches; and the elastic latches are snap-fitted in the openings.
9. The toner cartridge of claim 1, wherein the end of the driving rod of the sealing component that cooperates with a transmission shaft has a pit, and wherein the transmission shaft is conically shaped.