CN212949077U - Screw extruder - Google Patents
Screw extruder Download PDFInfo
- Publication number
- CN212949077U CN212949077U CN202021261778.5U CN202021261778U CN212949077U CN 212949077 U CN212949077 U CN 212949077U CN 202021261778 U CN202021261778 U CN 202021261778U CN 212949077 U CN212949077 U CN 212949077U
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- plunger
- housing
- drive mechanism
- screw extruder
- feeder
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
A screw extruder comprising a main housing in which a first twin screw and a second twin screw for advancing a material are rotatably mounted; also included is a twin screw drive mechanism having conventional operational controls and including a heating device and a heating controller, the feed port being located at the rear of the main housing and adapted to receive a plunger feeder in a sealed arrangement for inputting materials to be extruded and extruding these materials through the extrusion outlet with or without heating; the plunger feeder has an elongated and vertically disposed plunger housing and a plunger positioned in the plunger housing, a plunger drive mechanism is connected to the plunger to move the plunger up and down in the plunger housing, and a feed outlet is located at an upper end of the plunger housing and is connected to a feed port of the twin-screw extruder.
Description
Technical Field
The utility model relates to a screw extruder belongs to industrial manufacturing technical field.
Background
In actual production, the product quality is affected by uneven product density caused by the fact that the feeding rate cannot be accurately controlled when the extruder is used for feeding.
SUMMERY OF THE UTILITY MODEL
In order to solve the disadvantages and shortcomings, the utility model provides a screw extruder.
The utility model discloses a solve the technical scheme that technical problem adopted as follows:
a screw extruder 1 comprises a main housing 5 in which materials of an advancing twin-screw one 7 and a twin-screw two 15 are rotatably mounted; also included is a twin screw drive mechanism 9 having conventional operating controls and including heating means and a heating control, a feed inlet 11 located at the rear of the main housing 5 and adapted to receive the plunger feeder 3 in a sealed arrangement for input of materials to be extruded and to extrude these materials through an extrusion outlet 13 with or without heating; the plunger feeder 3 has an elongated and vertically placed plunger housing 21 and a plunger 23 positioned in the plunger housing 21, a plunger drive mechanism is connected to the plunger 23 to move the plunger 23 upward and downward in the plunger housing 21, a feed outlet 31 is located at an upper end of the plunger housing 21 and connected to the feed port 11 of the twin-screw extruder, the plunger drive mechanism is a gear motor 29 having a timing belt 33 in a housing 27, and a control device 35 is connected to the motor 29 to close and open it and change its rotational speed; the plunger feeder 3 is slidably detached with respect to the screw extruder 1, so that the plunger feeder 3 can be more conveniently cleaned and maintained; the plunger drive mechanism is operated to depress the plunger 23 to its lowest position, allowing material to be extruded and cumulatively fill the plunger housing 21 by gravity, the screw extruder 1 is started by the screw drive mechanism 9, then the plunger drive mechanism is operated to advance the plunger 23 upwardly, removing material from the plunger housing 21 and into the screw extruder 1 at a controlled rate, and outputting the material through the extrusion outlet 13.
The utility model discloses the beneficial effect who reaches is: the use of a gravity-filled plunger feeder to precisely control the feed rate to the extruder achieves extremely precise feed rates and product densities.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a front view of the present invention;
fig. 2 is a left side view of the present invention;
fig. 3 is a plan view of the present invention.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Example 1
As shown in fig. 1 to 3, a screw extruder 1 includes a main housing 5 in which materials of an advancing twin-screw one 7 and a twin-screw two 15 are rotatably installed; also included is a twin screw drive mechanism 9 having conventional operating controls and including heating means and a heating control, a feed inlet 11 located at the rear of the main housing 5 and adapted to receive the plunger feeder 3 in a sealed arrangement for input of materials to be extruded and to extrude these materials through an extrusion outlet 13 with or without heating; the plunger feeder 3 has an elongated and vertically placed plunger housing 21 and a plunger 23 positioned in the plunger housing 21, a plunger drive mechanism is connected to the plunger 23 to move the plunger 23 upward and downward in the plunger housing 21, a feed outlet 31 is located at an upper end of the plunger housing 21 and connected to the feed port 11 of the twin-screw extruder, the plunger drive mechanism is a gear motor 29 having a timing belt 33 in a housing 27, and a control device 35 is connected to the motor 29 to close and open it and change its rotational speed; the plunger feeder 3 is slidably detached with respect to the screw extruder 1, so that the plunger feeder 3 can be more conveniently cleaned and maintained; the plunger drive mechanism is operated to depress the plunger 23 to its lowest position, allowing material to be extruded and cumulatively fill the plunger housing 21 by gravity, the screw extruder 1 is started by the screw drive mechanism 9, then the plunger drive mechanism is operated to advance the plunger 23 upwardly, removing material from the plunger housing 21 and into the screw extruder 1 at a controlled rate, and outputting the material through the extrusion outlet 13.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. A screw extruder (1) comprising a main housing (5) in which a first twin screw (7) and a second twin screw (15) for advancing material are rotatably mounted; further comprising a twin screw drive mechanism (9) having conventional operational controls and comprising a heating device and a heating control, a feed inlet (11) located at the rear of the main housing (5) and adapted to receive a plunger feeder (3) in a sealed arrangement for input of materials to be extruded and to extrude these materials through an extrusion outlet (13) with or without heating; the plunger feeder (3) has an elongated and vertically placed plunger housing (21) and a plunger (23) positioned in the plunger housing (21), a plunger drive mechanism is connected to the plunger (23) to move the plunger (23) up and down in the plunger housing (21), a feed outlet (31) is located at an upper end of the plunger housing (21) and connected to a feed port (11) of the twin-screw extruder, the plunger drive mechanism is a gear motor (29) having a timing belt (33) in a casing (27), a control device (35) is connected to the motor (29) to close and open it and change its rotational speed; the plunger feeder (3) is slidably removable with respect to the screw extruder (1), so that the plunger feeder (3) can be more conveniently cleaned and maintained; the plunger drive mechanism is operated to depress the plunger (23) to its lowest position, allowing material to be extruded and cumulatively fill the plunger housing (21) by gravity, the screw extruder (1) is started by the screw drive mechanism (9), and then the plunger drive mechanism is operated to advance the plunger (23) upwardly, removing material from the plunger housing (21) and into the screw extruder (1) at a controlled rate, and outputting material through the extrusion outlet (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021261778.5U CN212949077U (en) | 2020-07-02 | 2020-07-02 | Screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021261778.5U CN212949077U (en) | 2020-07-02 | 2020-07-02 | Screw extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212949077U true CN212949077U (en) | 2021-04-13 |
Family
ID=75389273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021261778.5U Active CN212949077U (en) | 2020-07-02 | 2020-07-02 | Screw extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212949077U (en) |
-
2020
- 2020-07-02 CN CN202021261778.5U patent/CN212949077U/en active Active
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