CN210061942U - Laboratory double-stage extruder - Google Patents
Laboratory double-stage extruder Download PDFInfo
- Publication number
- CN210061942U CN210061942U CN201920732074.2U CN201920732074U CN210061942U CN 210061942 U CN210061942 U CN 210061942U CN 201920732074 U CN201920732074 U CN 201920732074U CN 210061942 U CN210061942 U CN 210061942U
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- Prior art keywords
- screw extrusion
- double
- die head
- discharge mechanism
- extruder
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- 238000001125 extrusion Methods 0.000 claims abstract description 96
- 230000007246 mechanism Effects 0.000 claims abstract description 94
- 238000007599 discharging Methods 0.000 claims abstract description 42
- 230000009467 reduction Effects 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 8
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims 2
- 238000010030 laminating Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 14
- 238000002156 mixing Methods 0.000 abstract description 7
- 229920003023 plastic Polymers 0.000 abstract description 6
- 239000004033 plastic Substances 0.000 abstract description 6
- 238000012545 processing Methods 0.000 abstract description 6
- 238000000354 decomposition reaction Methods 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 abstract description 3
- 238000010008 shearing Methods 0.000 abstract 2
- 229920000642 polymer Polymers 0.000 description 14
- 238000003825 pressing Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 239000002245 particle Substances 0.000 description 6
- 239000000047 product Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000005469 granulation Methods 0.000 description 2
- 230000003179 granulation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The utility model discloses a laboratory double-order extruder, including frame and double screw extrusion discharge mechanism, single screw extrusion discharge mechanism is installed to double screw extrusion discharge mechanism's discharge end, and is connected with vacuum exhaust apparatus between double screw extrusion discharge mechanism and the single screw extrusion discharge mechanism, and single screw extrusion discharge mechanism's discharge end is connected with detachable extruder die head. The double-screw extrusion discharging mechanism has the advantages that the double-screw extrusion discharging mechanism is high in rotating speed, high in shearing and strong in mixing, so that the materials can be plasticized, exhausted, mixed and dispersed in a short residence time under the condition of inorganic head backpressure, the low-speed deep groove characteristic of the screw of the single-screw extrusion discharging mechanism is utilized, the low-shearing processing environment is provided, and the phenomenon of overheat decomposition of the plasticized materials during high-pressure extrusion is prevented. The laboratory double-stage extruder is suitable for mixing, plasticizing and extruding various plastic formulas, has reasonable power consumption and distribution, effectively utilizes energy, and can be conveniently controlled by an operator.
Description
Technical Field
The utility model relates to a two-stage extruder technical field specifically is a laboratory two-stage extruder.
Background
With the rapid development of polymer material industry in plastic processing industry, the development and application of a double-stage extruder are attracting attention, and the performances of a single-screw extruder which is the main part in the extrusion industry cannot meet the modification requirements of blending, filling, reinforcing, toughening and the like, so that the double-stage extruder is required to be processed and improved.
The laboratory extruder can be used for testing only by a small amount of materials, and is particularly suitable for laboratory research work requirements of schools and enterprise research and development departments on high polymers and other materials.
The extruder in the prior art is generally used for batch production, is not suitable for small-batch, multi-formula, test, coloring and proofing and teaching research, and is inconvenient for an operator to control a plasticizing process.
Disclosure of Invention
An object of the utility model is to provide a laboratory double-step extruder is fit for the mixed plastify of multiple plastics formula and extrudes, and its power consumption distributes rationally, effectively utilizes the energy, and the operator can conveniently control the plastify process.
In order to achieve the above object, the utility model provides a following technical scheme: including frame and double screw extrusion discharge mechanism, double screw extrusion discharge mechanism is provided with heating device, double screw extrusion discharge mechanism sets up in heating device's inside, double screw extrusion discharge mechanism is provided with feed inlet and side direction feeder installing port, the one end of feed inlet is fixed with the extrusion feed mechanism, single screw extrusion discharge mechanism is installed to double screw extrusion discharge mechanism's discharge end, and is connected with vacuum exhaust apparatus between double screw extrusion discharge mechanism and the single screw extrusion discharge mechanism, and single screw extrusion discharge mechanism's discharge end is connected with detachable extruder die head.
Preferably, the double-screw extrusion discharging mechanism is a high-speed co-rotating parallel double-screw extrusion discharging mechanism, the single-screw extrusion discharging mechanism is a low-speed single-screw extruder, and the two are vertically and orthogonally arranged
Preferably, the extruder die comprises a main body, a movable cover, a die head motor, an opening and closing mechanism, a movable die head and a fixed die head, wherein the movable cover is arranged above the main body, the die head motor penetrates through the main body, the opening and closing mechanism is connected with the movable die head and the fixed die head, and the movable die head is rotatably connected with the fixed die head;
the opening and closing mechanism further comprises a threaded sleeve, a nut column, a hinge, an upper pressing ring and a lower pressing ring, the upper pressing ring and the lower pressing ring are respectively rotatably connected with the movable die head through the hinge, one end of the nut column is rotatably connected with the lower pressing ring, the movable die head is attached to the fixed die head and is fixed with the threaded sleeve through the nut column in a matched mode.
Preferably, the double-screw extrusion discharging mechanism comprises a main motor, a coupler, a reduction gearbox, a lateral feeder mounting port, an extrusion cylinder and double screws, wherein the main motor is a permanent magnet synchronous servo motor and is connected to the reduction gearbox through the coupler, the extrusion cylinder is fixed on the frame, the double screws are positioned in the extrusion cylinder, and the reduction gearbox is connected to the double screws.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the utility model provides a laboratory double-step extruder: the double-screw extrusion discharging mechanism is provided with a heating device, the double-screw extrusion discharging mechanism is arranged in the heating device, the double-screw extrusion discharging mechanism is provided with a feed inlet and a side feeder, the extrusion feeding mechanism is fixed at one end of the feed inlet, the side feeder mounting port can select and mount the side feeder according to a processed material formula, the single-screw extrusion discharging mechanism is mounted at the discharge end of the double-screw extrusion discharging mechanism, a vacuum exhaust device is connected between the double-screw extrusion discharging mechanism and the single-screw extrusion discharging mechanism, and the discharge end of the single-screw extrusion discharging mechanism is connected with a detachable extruder die head. The working process of the double-screw extrusion discharging mechanism can fully plasticize the polymer, and the moisture and low volatile matters are removed through vacuum, so that the large-discharge granulation of the submachine is facilitated, and the productivity is improved. The material further enters a single-screw extrusion discharging mechanism; the single-screw extrusion discharging mechanism extrudes the polymer fully plasticized by the double-screw extrusion discharging mechanism forwards, and the polymer is thermally cut into particles through an extruder die head, so that a finished product is packaged.
The main motor adopted by the double-screw extrusion discharging mechanism is a permanent magnet synchronous servo motor which has the advantages of controllable and rapid start and stop, large starting torque, stable operation, wide range, low noise and the like, and is connected to the reduction gearbox through a coupler to realize stepless speed regulation in an ultra-wide range of 0-1200 rpm; the twin screw extrusion discharge mechanism operates at high speed to achieve better mixing and higher throughput. The single-screw extrusion discharging mechanism adopts the low-speed deep groove characteristic of a single screw, provides a low-shear processing environment, and prevents the phenomenon of overheating decomposition of plasticized materials during high-pressure extrusion; the vacuum exhaust device between the double-screw extrusion discharging mechanism and the single-screw extrusion discharging mechanism can exhaust air, residual monomers, low-molecular volatile matters, solvents and gases in reaction products in the materials.
The laboratory double-stage extruder is suitable for mixing, plasticizing and extruding various plastic formulas, has reasonable power consumption distribution, effectively utilizes energy, can conveniently control the plasticizing process by an operator, and is suitable for small-batch, various formulas, testing, coloring and proofing and teaching research.
Drawings
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a schematic front view of the present invention;
fig. 3 is a schematic view of the structure of the right side of the present invention.
Fig. 4 is a schematic structural diagram of the die head of the extruder of the present invention.
In the figure: 1. a frame; 2. an extrusion feeding mechanism; 3. a feed inlet; 4. a vacuum exhaust device; 5. A double-screw extrusion discharging mechanism; 51. a main motor; 52. a reduction gearbox; 53. a lateral feeder mounting port; 6. a single screw extrusion discharging mechanism; 7. an extruder die head; 71. a main body; 72. a movable cover; 73. a die head motor; 74. an opening and closing mechanism; 7401. a threaded sleeve; 7402. a nut post; 7404. a hinge; 7405. pressing a ring; 7406. a lower pressure ring; 75. a movable die head; 76. and fixing the die head.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a following technical scheme: including frame 1 and twin-screw extrusion discharge mechanism 5, twin-screw extrusion discharge mechanism 5 is provided with heating device, twin-screw extrusion discharge mechanism 5 sets up in heating device's inside, the top of twin-screw extrusion discharge mechanism 5 is provided with feed inlet 3 and side direction feeder installing port 53, the one end of feed inlet 3 is fixed with extrusion feed mechanism 2, single screw extrusion discharge mechanism 6 is installed to the discharge end of twin-screw extrusion discharge mechanism 5, and is connected with vacuum exhaust apparatus 4 between twin-screw extrusion discharge mechanism 5 and the single screw extrusion discharge mechanism 6, and the discharge end of single screw extrusion discharge mechanism 6 is connected with detachable extruder die head 7. In the working process of the double-screw extrusion discharging mechanism 5, the double-screw extrusion discharging mechanism 5 can fully plasticize the polymer, and moisture and low volatile matters are removed through vacuum, so that the large-discharge granulation of the submachine is realized, and the productivity is improved. The material further enters a single-screw extrusion discharging mechanism 6; the single-screw extrusion discharging mechanism 6 extrudes the polymer fully plasticized by the double-screw extrusion discharging mechanism 5 forwards, and the polymer is hot-cut into particles through an extruder die head 7, and then the particles are packaged into finished products.
The main motor 51 adopted by the double-screw extrusion discharging mechanism 5 is a permanent magnet synchronous servo motor, the permanent magnet synchronous servo motor 51 has the advantages of controllable and rapid start and stop, large start torque, stable operation, wide range, low noise and the like, and is connected to the reduction gearbox 52 through a coupler to realize the stepless speed regulation in the ultra-wide range of 0-1200 rpm; the twin screw extrusion discharge mechanism 5 operates at high speed to achieve better mixing and higher throughput. The single-screw extrusion discharging mechanism 6 adopts the low-speed deep groove characteristic of a single screw, provides a low-shear processing environment, and prevents the plasticized material from being overheated and decomposed during high-pressure extrusion; the vacuum exhaust device 4 between the double-screw extrusion discharging mechanism 5 and the single-screw extrusion discharging mechanism 6 can exhaust air, residual monomers, low-molecular volatile matters, solvents and gases in reaction products in the materials.
The laboratory double-stage extruder is suitable for mixing, plasticizing and extruding various plastic formulas, has reasonable power consumption and distribution, effectively utilizes energy, and can be conveniently controlled by an operator.
The extruder die head 7 of the embodiment comprises a main body 71, a movable cover 72, a die head motor 73, an opening and closing mechanism 74, a movable die head 75 and a fixed die head 76, wherein the movable cover 72 is installed above the main body 71, the die head motor 73 penetrates through the main body 71, the opening and closing mechanism 74 is connected to the movable die head 75 and the fixed die head 76, and the movable die head 75 is rotatably connected with the fixed die head 76; the opening and closing mechanism 74 further comprises a screw sleeve 7401, a nut column 7402, a hinge 7404, an upper pressing ring 7405 and a lower pressing ring 7406, the upper pressing ring 7405 and the lower pressing ring 7406 are respectively rotationally connected with the movable die head 75 through the hinge 7404, one end of the nut column 7402 is rotationally connected with the lower pressing ring 7406, the movable die head 75 is attached to the fixed die head 76, and the nut column 7402 is fixed with the screw sleeve 7401 in a matching manner. Through the setting of the mechanism 74 that opens and shuts, unscrew swivel nut 7401, can open last clamping ring 7405 and lower clamping ring 7406, can open movable die head 75 to make things convenient for the staff to clear up the extruder inside, conveniently open and shut movable die head 75, shorten the time as far as possible, avoid plastics to turn yellow because of long-time the stop and discolour.
The double-screw extrusion discharging mechanism 5 comprises a main motor 51, a coupler, a reduction gearbox 52, a lateral feeder mounting hole 53, an extrusion cylinder body and double screws, wherein the main motor 51 is connected to the reduction gearbox 52 through the coupler, the lateral feeder mounting hole 53 can be used for selectively mounting the lateral feeder according to a processing material formula, the extrusion cylinder body is fixed on the rack 1, the double screws are located in the extrusion cylinder body, and the reduction gearbox 52 is connected to the double screws. The main motor 51 transmits torque to the twin-screw via the reduction box 52 (0-1200 r/min), the twin-screw generates same-line rotation movement, the polymer enters the twin-screw from the feeding port and is pushed forward by the twin-screw, the polymer absorbs the temperature of the cylinder (the set process temperature) to start melting in the pushing process, the polymer is continuously mixed and plasticized in the twin-screw, finally the polymer is extruded and dropped into the feeding port 3 of the submachine and is extruded and cut into particles by the single-screw extrusion discharging mechanism 6. The matching characteristics are as follows: the upper-stage machine can add various material formulas to fully plasticize the polymer, and removes moisture and low volatile matters through vacuum, thereby utilizing the characteristics of a low-speed deep groove of a screw rod of the lower-stage machine, providing a low-shear processing environment, preventing the plasticized material from generating an overheating decomposition phenomenon during high-pressure extrusion, and facilitating the control of the plasticizing process by an operator.
The single-screw extrusion discharging mechanism 6 also transfers the torque to the single screw (120 r/min) through the reduction box 52 by the motor, the single screw extrudes the polymer fully plasticized by the double-screw extrusion discharging mechanism 5 forwards, the polymer is thermally cut into particles through the die surface, and the particles are separated by cyclone and screened to the storage hopper to be packaged into finished products.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a laboratory double-stage extruder, includes frame (1) and twin-screw extrusion discharge mechanism (5), its characterized in that: double screw extrusion discharge mechanism (5) are provided with heating device, double screw extrusion discharge mechanism (5) set up in heating device's inside, double screw extrusion discharge mechanism (5) are provided with feed inlet (3) and side direction feeder installing port (53), the one end of feed inlet (3) is fixed with extrusion feed mechanism (2), single screw extrusion discharge mechanism (6) is installed to the discharge end of double screw extrusion discharge mechanism (5), and is connected with vacuum exhaust apparatus (4) between double screw extrusion discharge mechanism (5) and single screw extrusion discharge mechanism (6), the discharge end of single screw extrusion discharge mechanism (6) is connected with detachable extruder die head (7).
2. A laboratory two-stage extruder according to claim 1, characterized in that: the double-screw extrusion discharging mechanism (5) is a high-speed co-rotating parallel double-screw extrusion discharging mechanism, the single-screw extrusion discharging mechanism (6) is a low-speed single-screw extruder, and the two mechanisms are arranged perpendicularly and orthogonally.
3. A laboratory two-stage extruder according to claim 1, characterized in that: the extruder die head (7) comprises a main body (71), a movable cover (72), a die head motor (73), an opening and closing mechanism (74), a movable die head (75) and a fixed die head (76), wherein the movable cover (72) is arranged above the main body (71), the die head motor (73) penetrates through the inside of the main body (71), the opening and closing mechanism (74) is connected with the movable die head (75) and the fixed die head (76), and the movable die head (75) is rotatably connected with the fixed die head (76);
mechanism (74) of opening and shutting still includes swivel nut (7401), nut post (7402), hinge (7404), goes up clamping ring (7405) and push down ring (7406), go up clamping ring (7405) and push down ring (7406) and rotate through hinge (7404) and activity die head (75) respectively and be connected, the one end and the lower clamping ring (7406) of nut post (7402) rotate to be connected, laminating of activity die head (75) and fixed die head (76) are fixed through nut post (7402) and swivel nut (7401) cooperation.
4. A laboratory two-stage extruder according to claim 1, characterized in that: the double-screw extrusion discharging mechanism (5) comprises a main motor (51), a coupler, a reduction gearbox (52), a lateral feeder mounting port (53), an extrusion cylinder body and double screws, wherein the main motor (51) is a permanent magnet synchronous servo motor, the main motor (51) is connected to the reduction gearbox (52) through the coupler, the extrusion cylinder body is fixed on the rack (1), the double screws are located in the extrusion cylinder body, and the reduction gearbox is connected to the double screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920732074.2U CN210061942U (en) | 2019-05-21 | 2019-05-21 | Laboratory double-stage extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920732074.2U CN210061942U (en) | 2019-05-21 | 2019-05-21 | Laboratory double-stage extruder |
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| Publication Number | Publication Date |
|---|---|
| CN210061942U true CN210061942U (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920732074.2U Expired - Fee Related CN210061942U (en) | 2019-05-21 | 2019-05-21 | Laboratory double-stage extruder |
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| CN (1) | CN210061942U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111793295A (en) * | 2020-05-28 | 2020-10-20 | 安徽钰泽塑业科技股份有限公司 | High-strength wear-resistant PVC (polyvinyl chloride) threading pipe and production process thereof |
-
2019
- 2019-05-21 CN CN201920732074.2U patent/CN210061942U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111793295A (en) * | 2020-05-28 | 2020-10-20 | 安徽钰泽塑业科技股份有限公司 | High-strength wear-resistant PVC (polyvinyl chloride) threading pipe and production process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 523000 No.5, 2nd Road, lucivo Industrial Zone, Wanjiang street, Dongguan City, Guangdong Province Patentee after: Guangdong Sanyou polymer Equipment Co.,Ltd. Address before: 523000 Guangdong province Dongguan City Wanjiang Shi Mei Yi Road Patentee before: DONGGUAN SAN-U PLASTIC MACHINERY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200214 |
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| CF01 | Termination of patent right due to non-payment of annual fee |