CN215791647U - Double-screw extruder - Google Patents
Double-screw extruder Download PDFInfo
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- CN215791647U CN215791647U CN202122373486.1U CN202122373486U CN215791647U CN 215791647 U CN215791647 U CN 215791647U CN 202122373486 U CN202122373486 U CN 202122373486U CN 215791647 U CN215791647 U CN 215791647U
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Abstract
The application relates to a double-screw extruder, which relates to the technical field of screw extruders and comprises a rack, wherein a feeding screw cylinder and a discharging screw cylinder are oppositely arranged on the rack, a plurality of extension screw cylinders are detachably arranged between the feeding screw cylinder and the discharging screw cylinder, and the feeding screw cylinder, the plurality of extension screw cylinders and the discharging screw cylinder are mutually spliced; a feeding hole is formed in the feeding screw barrel, two feeding screws are rotatably arranged in the feeding screw barrel, and a driving piece for driving the feeding screws to rotate is arranged on the feeding screw barrel; two extension screws are rotatably arranged in the extension screw cylinder and are respectively connected with the feeding screw; the one end that extension spiral shell section of thick bamboo was kept away from relatively to ejection of compact spiral shell section of thick bamboo sets up the discharge gate, and ejection of compact spiral shell section of thick bamboo is located discharge gate department and is provided with the extrusion die board, and ejection of compact spiral shell section of thick bamboo internal rotation sets up two discharge screw, and two discharge screw are connected with the extension screw respectively. This application has the effect that improves and adjust twin-screw extruder length suitability.
Description
Technical Field
The application relates to the technical field of screw extruders, in particular to a double-screw extruder.
Background
The double screw extruder is developed on the extrusion of a single screw extruder, has the characteristics of good feeding performance, mixing plasticizing performance, exhaust performance, extrusion stability and the like, is widely applied to the molding processing of extruded products at present, and simply speaking, for the basic mechanism of the extrusion process, the screw rotates in a cylinder and pushes materials forwards, and the structure of the screw is an inclined plane or a slope wound on a central layer, so that the pressure is increased to overcome larger resistance.
The Chinese utility model patent with the publication number of CN210161581U discloses an extended double-screw extruder, which comprises a first double-screw extruder and a second double-screw extruder, wherein the first double-screw extruder is horizontally arranged, the second double-screw extruder is arranged at the bottom of the first double-screw extruder, the discharging direction of the second double-screw extruder is opposite to that of the first double-screw extruder, a feeding pipe is arranged at the top of one end, close to power equipment, of the first double-screw extruder, a feeder is arranged at the top of the other end of the first double-screw extruder, a connecting pipe is arranged at the bottom of the other end of the first double-screw extruder, the connecting pipe is communicated with the top of one end, close to the power equipment, of the second double-screw extruder, and an extrusion mold is arranged at one end, far away from the power equipment, of the second double-screw extruder; and heating sleeves are sleeved outside the first double-screw extruder and the second double-screw extruder, and temperature sensors are arranged in the heating sleeves.
With respect to the related art among the above, the inventors consider that the following drawbacks occur: the length of the double-screw extruder is difficult to be adjusted efficiently and dynamically, and the applicability is poor.
SUMMERY OF THE UTILITY MODEL
In order to improve the suitability of adjusting the length of a twin-screw extruder, the application provides a twin-screw extruder.
The application provides a twin-screw extruder adopts following technical scheme:
a double-screw extruder comprises a rack, wherein a feeding screw cylinder and a discharging screw cylinder are arranged on the rack, the feeding screw cylinder and the discharging screw cylinder are arranged oppositely, a plurality of extension screw cylinders are detachably arranged between the feeding screw cylinder and the discharging screw cylinder, and the feeding screw cylinder, the plurality of extension screw cylinders and the discharging screw cylinder are mutually spliced; the feeding screw barrel is provided with a feeding hole, two feeding screws are rotatably arranged in the feeding screw barrel and are parallel to each other, and a driving piece for driving the feeding screws to rotate is arranged at the end part of the feeding screw barrel; two extension screws are rotatably arranged in the extension screw cylinder, the two extension screws are respectively detachably and fixedly connected with the feeding screw, and adjacent extension screws along the splicing direction of the extension screw cylinder are spliced and fixed with each other; the one end that extension spiral shell section of thick bamboo was kept away from relatively to ejection of compact spiral shell section of thick bamboo has seted up the discharge gate, just ejection of compact spiral shell section of thick bamboo is located discharge gate department and is provided with the extrusion die board, ejection of compact spiral shell section of thick bamboo internal rotation is provided with two discharging screw, and two discharging screw can dismantle fixed connection with the extension screw respectively.
By adopting the technical scheme, the rack plays a role in mounting and fixing the whole structure, and when the length of the double-screw extruder is adjusted, the whole length of the extruder is adjusted by changing the number of the extension screw cylinders between the feeding screw cylinder and the discharging screw cylinder; when a double-screw extruder is used for extruding materials, the materials are fed into the extruder from a feed port on a feed screw cylinder, a driving piece drives a screw rod to rotate, and then the screw thread of the screw rod pushes the materials, so that the materials pass through the feed screw cylinder, an extension screw cylinder and a discharge screw cylinder and leave the extruder from a discharge port of the discharge screw cylinder, and the extrusion operation of the materials is completed; when the extension screw cylinder is installed between the feeding screw cylinder and the discharging screw cylinder, the extension screw cylinder is firstly moved to a position to be installed, the extension screw rod in the extension screw cylinder is fixedly connected with the extension screw rods in the feeding screw rod, the discharging screw rod and the adjacent extension screw rods, and then the installation of the extension screw cylinder is fixed. So set up, through adjusting the number of extension barrel between feeding barrel and the ejection of compact barrel, adjust the holistic length of extruding of double screw extruder, improved double screw extruder's suitability.
Optionally, the extension screw cylinder comprises an extension portion and a covering portion, the covering portion is rotatably arranged on the extension portion, two ends of the extension portion along the splicing direction of the extension portion are respectively in sliding contact with adjacent side walls, and the extension screw rod is rotatably arranged on the extension portion in a suspended mode; the extension part is provided with a fixing component for fixing the covering part.
Optionally, the fixing assembly comprises two fixing pieces and two fixing rods, the two fixing pieces are respectively located on the extending portion and the covering portion, and the two fixing pieces are fixed by the fixing rods in a penetrating mode.
Optionally, a fixing groove is formed at a splicing position of the feeding screw and the extension screw, an extension strip is arranged at an end of the extension screw, the extension strip is fixedly matched with the fixing groove, and a fixing piece for fixing the extension screw is arranged on the extension screw; an elongated slot is formed in one end, far away from the elongated strip, of each elongated screw, and the elongated strips on the adjacent elongated screws are fixedly matched with the elongated slots; the splicing part of the discharging screw rod and the extension screw rod is provided with a fixing strip, and the fixing strip is fixedly matched with the extension groove.
Optionally, the driving member is a motor.
Optionally, a noise reduction pad is arranged on the circumferential side wall of the extension screw cylinder.
In summary, the present application at least includes the following beneficial technical effects:
1. the feeding screw cylinder and the discharging screw cylinder are arranged on the rack, the feeding screw cylinder and the discharging screw cylinder are arranged oppositely, a plurality of extension screw cylinders are detachably arranged between the feeding screw cylinder and the discharging screw cylinder, and the feeding screw cylinder, the plurality of extension screw cylinders and the discharging screw cylinder are mutually spliced; the feeding screw barrel is provided with a feeding hole, two feeding screws are rotatably arranged in the feeding screw barrel and are parallel to each other, and a driving piece for driving the feeding screws to rotate is arranged at the end part of the feeding screw barrel; two extension screws are rotatably arranged in the extension screw cylinder, the two extension screws are respectively detachably and fixedly connected with the feeding screw, and adjacent extension screws along the splicing direction of the extension screw cylinder are spliced and fixed with each other; a discharge port is formed in one end, far away from the extension screw cylinder, of the discharge screw cylinder, an extrusion template is arranged at the discharge port of the discharge screw cylinder, two discharge screws are rotatably arranged in the discharge screw cylinder, and the two discharge screws are respectively detachably and fixedly connected with the extension screws; the rack plays a role in mounting and fixing the whole structure, and when the length of the double-screw extruder is adjusted, the whole length of the extruder is adjusted by changing the number of the extension screw cylinders between the feeding screw cylinder and the discharging screw cylinder; when a double-screw extruder is used for extruding materials, the materials are fed into the extruder from a feed port on a feed screw cylinder, a driving piece drives a screw rod to rotate, and then the screw thread of the screw rod pushes the materials, so that the materials pass through the feed screw cylinder, an extension screw cylinder and a discharge screw cylinder and leave the extruder from a discharge port of the discharge screw cylinder, and the extrusion operation of the materials is completed; when the extension screw cylinder is installed between the feeding screw cylinder and the discharging screw cylinder, the extension screw cylinder is firstly moved to a position to be installed, the extension screw rod in the extension screw cylinder is fixedly connected with the extension screw rods in the feeding screw rod, the discharging screw rod and the adjacent extension screw rods, and then the installation of the extension screw cylinder is fixed. So set up, through adjusting the number of extension barrel between feeding barrel and the ejection of compact barrel, adjust the holistic length of extruding of double screw extruder, improved double screw extruder's suitability.
Drawings
FIG. 1 is a front view of a twin screw extruder in an embodiment of the present application.
Fig. 2 is a cross-sectional view of an elongated barrel in an embodiment of the present application.
FIG. 3 is a schematic view showing the connection of a feed screw, an extension screw and a discharge screw in the example of the present application.
Description of reference numerals: 1. a frame; 2. a feed screw barrel; 3. extending the screw cylinder; 31. an extension; 32. a covering part; 4. a discharging screw cylinder; 5. a feed inlet; 6. a discharge port; 7. extruding a template; 8. a feed screw; 9. a drive member; 10. extending the screw; 11. a noise reduction pad; 12. a discharge screw; 13. a fixing assembly; 131. a fixing sheet; 132. fixing the rod; 14. fixing grooves; 15. a strip extending; 16. a fixing member; 17. an elongated slot; 18. and (4) fixing the strip.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses a double-screw extruder.
Referring to fig. 1 and 2, a double screw extruder, including vertical frame 1, along same direction in proper order feeding barrel 2, a plurality of extension barrel 3 and ejection of compact barrel 4 have been set gradually in frame 1, a plurality of extension barrel 3 can be dismantled the amalgamation and set up between feeding barrel 2 and ejection of compact barrel 4, and feeding barrel 2, extension barrel 3 and ejection of compact barrel 4 all are the cuboid form, feeding barrel 2, extension barrel 3 and the mutual coincidence of the axis of ejection of compact barrel 4. In the embodiment of the present application, two extension screw barrels 3 are provided.
Referring to fig. 1 and 3, a feed inlet 5 is formed in the side wall of the feed screw barrel 2 along the length direction and relatively far away from the frame 1, and the feed inlet 5 is used for feeding materials to be blended into the extruder; the discharging screw cylinder 4 is provided with a discharging port 6 along the length direction and at one end relatively far away from the feeding screw cylinder 2, the discharging port 6 is arranged at the discharging port 6 of the discharging screw cylinder 4, an extruding template 7 is arranged at the discharging port 6, the discharging port 6 is used for discharging the blended materials out of the extruder, and the extruding template 7 is used for molding the extruded materials.
Referring to fig. 1 and 3, the internal rotation of feeding barrel 2 is provided with two feed screw 8, and two feed screw 8 are parallel to each other, and two feed screw 8 set up along 8 length direction of feed screw, namely, two feed screw 8 are located 2 length direction's of feeding barrel both sides respectively, the tip that extension barrel 3 was kept away from relatively to feeding barrel 2 is provided with drive feed screw 8 pivoted driving piece 9, in this application embodiment, driving piece 9 is the motor, the power take off end of motor passes through the belt and is connected with two feed screw 8 powers.
Referring to fig. 2 and 3, two extension screws 10 are arranged in the extension screw cylinder 3 in a suspended manner, the two extension screws 10 are respectively connected with the two feeding screws 8 in a one-to-one correspondence manner, the extension screws 10 are detachably and fixedly connected with the feeding screws 8, and the extension screws 10 in the adjacent extension screw cylinders 3 are detachably and fixedly connected. Extension spiral shell section of thick bamboo 3 is fixed along its length direction's week lateral wall on the pad 11 of making an uproar that falls, in this application embodiment, falls the pad 11 of making an uproar and be the rubber pad, and the rubber pad uses hot melt adhesive fixed bonding on extension spiral shell section of thick bamboo 3 week lateral wall.
Referring to fig. 2 and 3, the internal rotation of ejection of compact spiral shell section of thick bamboo 4 is provided with two discharge screw 12, and two discharge screw 12 are connected with two discharge screw 12 one-to-one respectively, and the concatenation can be dismantled with the tip of extension screw 10 to discharge screw 12, promptly, discharge screw 12, a plurality of extension screw 10 and discharge screw 12 splice each other, and then the power of transmission driving piece 9 output.
Referring to fig. 2 and 3, the extension screw cylinder 3 includes an extension portion 31 and a covering portion 32, the extension portion 31 is a rectangular parallelepiped with an opening on one side wall, the covering portion 32 is rotatably disposed at the opening of the extension portion 31, and the extension portion 31 is provided with a fixing component 13 for fixing the covering portion 32. When the extension screw barrel 3 is installed on the frame 1, the extension part 31 is in sliding contact with the side wall of the adjacent screw barrel, and the extension screw 10 is suspended and rotatably arranged in the extension part 31. The fixing assembly 13 includes two fixing pieces 131 in a square shape and a fixing rod 132 in a cylindrical shape, the two fixing pieces 131 are respectively located on the extension portion 31 and the covering portion 32, and the fixing rod 132 in a cylindrical shape is threaded through the two fixing pieces 131.
Referring to fig. 2 and 3, a fixing groove 14 is formed at a splicing position of the feeding screw 8 and the extension screw 10, an extension strip 15 is arranged at an end portion of the extension screw 10, the extension strip 15 is fixedly matched with the fixing groove 14, and a fixing piece 16 for fixing the feeding screw 10 is arranged on the extension screw 10; one end of each extension screw 10, which is relatively far away from the extension strip 15, is provided with an extension slot 17, and the extension strips 15 on the adjacent extension screws 10 are mutually fixedly matched with the extension slots 17; the discharging screw 12 is provided with a fixing strip 18 at the joint of the discharging screw 12 and the extension screw 10, the fixing strip 18 is fixedly matched with the extension groove 17 on the extension screw 10, the discharging screw 12 is provided with a screw, and the screw is used for fixing the connection between the extension screw 10 and the discharging screw 12.
The implementation principle of the double-screw extruder in the embodiment of the application is as follows: the rack 1 plays a role in mounting and fixing the whole structure, and when the length of the double-screw extruder is adjusted, the whole length of the extruder is adjusted by changing the number of the extension screw cylinders 3 between the feeding screw cylinder 2 and the discharging screw cylinder 4; when a double-screw extruder is used for extruding materials, the materials are fed into the extruder from a feed port 5 on a feed screw cylinder 2, a driving piece 9 drives the screw to rotate, and then the thread surface of the screw pushes the materials, so that the materials pass through the feed screw cylinder 2, an extension screw cylinder 3 and a discharge screw cylinder 4 and leave the extruder from a discharge port 6 of the discharge screw cylinder 4, and the extrusion operation of the materials is finished; when the extension screw cylinder 3 is installed between the feeding screw cylinder 2 and the discharging screw cylinder 4, the extension screw cylinder 3 is firstly moved to a position to be installed, one or two of the extension screw rods 10 in the extension screw cylinder 3, the feeding screw rods 8, the discharging screw rods 12 and the extension screw rods 10 in the adjacent extension screw rods 10 are fixedly connected, and then the installation and fixation of the extension screw cylinder 3 are completed. So set up, through adjusting the number of extension spiral shell section of thick bamboo 3 between feeding spiral shell section of thick bamboo 2 and the ejection of compact spiral shell section of thick bamboo 4, adjust the holistic length of extruding of double screw extruder, improved double screw extruder's suitability.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (6)
1. A twin-screw extruder, characterized in that: the feeding screw cylinder device comprises a rack (1), wherein a feeding screw cylinder (2) and a discharging screw cylinder (4) are arranged on the rack (1), the feeding screw cylinder (2) and the discharging screw cylinder (4) are oppositely arranged, a plurality of extension screw cylinders (3) are detachably arranged between the feeding screw cylinder (2) and the discharging screw cylinder (4), and the feeding screw cylinder (2), the plurality of extension screw cylinders (3) and the discharging screw cylinder (4) are mutually spliced;
a feeding hole (5) is formed in the feeding screw barrel (2), two feeding screws (8) are rotatably arranged in the feeding screw barrel (2), the two feeding screws (8) are parallel to each other, and a driving piece (9) for driving the feeding screws (8) to rotate is arranged at the end part of the feeding screw barrel (2);
two extension screws (10) are rotatably arranged in the extension screw cylinder (3), the two extension screws (10) are respectively detachably and fixedly connected with the feeding screw (8), and the adjacent extension screws (10) along the splicing direction of the extension screw cylinder (3) are spliced and fixed with each other;
discharge gate (6) have been seted up to the one end of extension spiral shell section of thick bamboo (3) is kept away from relatively in ejection of compact spiral shell section of thick bamboo (4), just ejection of compact spiral shell section of thick bamboo (4) are located discharge gate (6) and locate to be provided with and extrude template (7), ejection of compact spiral shell section of thick bamboo (4) internal rotation is provided with two ejection of compact screw rods (12), and two ejection of compact screw rods (12) can dismantle fixed connection with extension screw rod (10) respectively.
2. A twin screw extruder as defined in claim 1 wherein: the extension screw cylinder (3) comprises an extension part (31) and a covering part (32), the covering part (32) is rotatably arranged on the extension part (31), two ends of the extension part (31) along the splicing direction are respectively in sliding contact with adjacent side walls, and the extension screw (10) is suspended and rotatably arranged on the extension part (31); the extension part (31) is provided with a fixing component (13) for fixing the covering part (32).
3. A twin-screw extruder as defined in claim 2, wherein: fixed subassembly (13) are including stationary blade (131) and dead lever (132), stationary blade (131) are provided with two, and two stationary blades (131) are located extension (31) and lid respectively and close portion (32) on, just dead lever (132) wear to establish two stationary blades (131).
4. A twin screw extruder as defined in claim 1 wherein: a fixing groove (14) is formed in the splicing position of the feeding screw (8) and the extension screw (10), an extension strip (15) is arranged at the end of the extension screw (10), the extension strip (15) is fixedly matched with the fixing groove (14), and a fixing piece (16) for fixing the extension screw (10) is arranged on the extension screw; an elongated slot (17) is formed in one end, far away from the elongated strip (15), of each elongated screw (10), and the elongated strips (15) on the adjacent elongated screws (10) are fixedly matched with the elongated slots (17); the splicing part of the discharging screw rod (12) and the extension screw rod (10) is provided with a fixing strip (18), and the fixing strip (18) is fixedly matched with the extension groove (17).
5. A twin screw extruder as defined in claim 1 wherein: the driving piece (9) is a motor.
6. A twin screw extruder as defined in claim 1 wherein: and a noise reduction pad (11) is arranged on the circumferential side wall of the extension screw cylinder (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122373486.1U CN215791647U (en) | 2021-09-29 | 2021-09-29 | Double-screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122373486.1U CN215791647U (en) | 2021-09-29 | 2021-09-29 | Double-screw extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215791647U true CN215791647U (en) | 2022-02-11 |
Family
ID=80167691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122373486.1U Active CN215791647U (en) | 2021-09-29 | 2021-09-29 | Double-screw extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215791647U (en) |
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2021
- 2021-09-29 CN CN202122373486.1U patent/CN215791647U/en active Active
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