CN112976535A - Double-screw extruder with preheating function - Google Patents
Double-screw extruder with preheating function Download PDFInfo
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- CN112976535A CN112976535A CN201911297941.5A CN201911297941A CN112976535A CN 112976535 A CN112976535 A CN 112976535A CN 201911297941 A CN201911297941 A CN 201911297941A CN 112976535 A CN112976535 A CN 112976535A
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- gear
- heating
- wall
- rotating shaft
- screw extruder
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- 238000010438 heat treatment Methods 0.000 claims abstract description 56
- 230000005540 biological transmission Effects 0.000 claims abstract description 32
- 238000003756 stirring Methods 0.000 claims abstract description 23
- 239000010425 asbestos Substances 0.000 claims abstract description 17
- 238000001125 extrusion Methods 0.000 claims abstract description 17
- 239000004744 fabric Substances 0.000 claims abstract description 17
- 229910052895 riebeckite Inorganic materials 0.000 claims abstract description 17
- 238000010276 construction Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 229920000426 Microplastic Polymers 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000002349 favourable effect Effects 0.000 abstract description 6
- 230000002269 spontaneous effect Effects 0.000 abstract description 2
- 239000002245 particle Substances 0.000 description 23
- 229920003023 plastic Polymers 0.000 description 23
- 239000000463 material Substances 0.000 description 4
- 238000004321 preservation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000012438 extruded product Nutrition 0.000 description 1
- 230000035553 feeding performance Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/287—Raw material pre-treatment while feeding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
- B29C48/402—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders the screws having intermeshing parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/793—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling upstream of the plasticising zone, e.g. heating in the hopper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a double-screw extruder with a preheating function, which comprises an extrusion box, a first gear and a feeding pipe, wherein a supporting frame is fixed on the top surface of the extrusion box, a heating hopper is connected to the inner side of the top of the supporting frame, a rotating shaft penetrates through the center of the bottom of the inner wall of the heating hopper, stirring paddles are connected to two sides of the top of the rotating shaft, the first gear is arranged at the bottom of the rotating shaft, a transmission disc is arranged below the second gear, a screw rod penetrates through the inside of the transmission disc, the feeding pipe is connected to the bottom of the heating hopper, and asbestos cloth wraps the outer wall of the feeding pipe. This double helix extruder heating fill with preheat function replaces traditional feeder hopper, and heating fill intercommunication external power source can make its spontaneous heating, and the plastic granules can preheat when the heating is fought, is favorable to reducing the plastify time of plastic granules by a wide margin to be favorable to improving production efficiency, and the heating is fought the inner wall and is the condition production that the arc structure can prevent the plastic granules jam.
Description
Technical Field
The invention relates to the technical field of double-screw extruders, in particular to a double-screw extruder with a preheating function.
Background
The double-screw extruder is developed on the basis of a single-screw extruder, and has the characteristics of good feeding performance, mixing and plasticizing performance, exhaust performance, extrusion stability and the like, so that the double-screw extruder is widely applied to molding processing of extruded products at present, and the double-screw extruder for profile extrusion is usually tightly meshed and rotates in different directions, although a few double-screws in the same direction are used for extrusion.
When the existing double-screw extruder heats, plastifies and extrudes plastic particles, the plastic particles cannot be preheated, plasticizing time is prolonged when the plastic particles enter the double-screw extruder to be processed, and therefore production efficiency is not improved.
Disclosure of Invention
The invention aims to provide a double-screw extruder with a preheating function, and aims to solve the problem that the plasticizing time is prolonged when plastic particles enter the double-screw extruder for processing operation because the plastic particles cannot be preheated when the common double-screw extruder heats, plasticizes and extrudes the plastic particles in the background technology, so that the production efficiency is not improved.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a double helix extruder with preheat function, includes extrusion case, first gear and inlet pipe, it is fixed with the support frame to extrude the case top surface, and support frame top inboard is connected with the heating fill, heating fill inner wall bottom center runs through there is the pivot, and pivot top both sides are connected with the stirring rake, first gear sets up in the pivot bottom, and is provided with the second gear on one side of the first gear, second gear below is provided with the driving disc, and driving disc and second gear surface all are connected with the drive belt, the inside hob that runs through of driving disc, and hob end-to-end connection has the motor, the inlet pipe is connected in the heating fill bottom, and inlet pipe one end is provided with the electronic valve, inlet pipe outer wall parcel has the asbestos cloth.
Preferably, the inner wall of the heating hopper is of an arc-shaped structure, and the heating hopper forms a supporting structure with the extrusion box through a supporting frame.
Preferably, the stirring paddle forms a rotating structure through the rotating shaft, and the outer opening structure of the stirring paddle is matched with the inner opening structure of the heating hopper.
Preferably, the first gear and the second gear are in meshed connection, and a vertical midline of the first gear and a vertical midline of the rotating shaft coincide with each other.
Preferably, the screw rod and the transmission disc form a rotating structure through a motor, and the transmission disc forms a transmission structure through a transmission belt and a second gear.
Preferably, the outer wall of inlet pipe and the inner wall of asbestos cloth laminate mutually, and the inlet pipe passes through the asbestos cloth and constitutes insulation construction.
Compared with the prior art, the invention has the beneficial effects that: this double helix extruder heating fill with preheat function replaces traditional feeder hopper, and heating fill intercommunication external power source can make its spontaneous heating, and the plastic granules can preheat when the heating is fought, is favorable to reducing the plastify time of plastic granules by a wide margin to be favorable to improving production efficiency, and the heating is fought the inner wall and is the condition production that the arc structure can prevent the plastic granules jam.
This double helix extruder motor with preheat function drives the drive plate and rotates and make the drive belt drive the second gear and rotate, thereby make first gear drive pivot make the stirring rake rotate, the stirring rake can stir the inside plastic granules of heating fill, make plastic granules produce and flow, thereby be favorable to heating the inside plastic granules of fighting to be heated evenly, and the motor drives the drive plate when driving the hob work and rotates, a tractor serves two-purpose that the motor realized, the utilization ratio of motor has been improved, avoid the wasting of resources.
This double helix extruder inlet pipe both ends with add heat function are connected respectively in heating fill bottom and extrude the roof portion, after the plastic granules after preheating gets into the inlet pipe, the rethread inlet pipe gets into and extrudes incasement portion, and inlet pipe one end is provided with the electronic valve, electronic valve signal connection control terminal, the adjustable plastic granules of degree of opening and shutting through control terminal control electronic valve gets into the speed of extruding incasement portion, be favorable to making hob saturation operation, avoid the material to pile up or the not enough condition of material to appear, and inlet pipe outer wall parcel has asbestos cloth, asbestos cloth has the heat preservation effect, can prevent that the plastic granules temperature after the inlet pipe inside is heated from appearing the phenomenon of dissipating.
Drawings
FIG. 1 is a schematic front view of the internal structure of the present invention;
FIG. 2 is a schematic top view of the heating chamber of the present invention;
FIG. 3 is a side view of the screw rod of the present invention.
In the figure: 1. an extrusion box; 2. a support frame; 3. a heating hopper; 4. a rotating shaft; 5. a stirring paddle; 6. a first gear; 7. a second gear; 8. a drive plate; 9. a transmission belt; 10. a screw rod; 11. a motor; 12. a feed pipe; 13. an electronic valve; 14. asbestos cloth.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a double-screw extruder with a preheating function comprises an extrusion box 1, a first gear 6 and a feeding pipe 12, wherein a support frame 2 is fixed on the top surface of the extrusion box 1, a heating hopper 3 is connected to the inner side of the top of the support frame 2, the inner wall of the heating hopper 3 is of an arc structure, the heating hopper 3 forms a support structure with the extrusion box 1 through the support frame 2, the heating hopper 3 is communicated with an external power supply to enable the heating hopper 3 to perform self-heating, plastic particles can be preheated when the heating hopper 3 is heated, the plasticizing time of the plastic particles can be greatly reduced, the production efficiency can be improved, the inner wall of the heating hopper 3 is of an arc structure, the plastic particles can be prevented from being blocked, the heating hopper 3 is fixed above the extrusion box 1 through the support frame 2, and the stability of the heating hopper 3 can be improved;
a rotating shaft 4 penetrates through the center of the bottom of the inner wall of the heating hopper 3, stirring paddles 5 are connected to two sides of the top of the rotating shaft 4, the stirring paddles 5 form a rotating structure through the rotating shaft 4, an outer opening structure of each stirring paddle 5 is matched with an inner opening structure of the heating hopper 3, and the stirring paddles 5 can stir the plastic particles in the heating hopper 3 to enable the plastic particles to flow, so that the plastic particles in the heating hopper 3 are uniformly heated, and the outer opening structure of each stirring paddle 5 is matched with the inner opening structure of the heating hopper 3 to facilitate the stirring paddles 5 to comprehensively stir the plastic particles in the heating hopper 3;
the first gear 6 is arranged at the bottom of the rotating shaft 4, a second gear 7 is arranged on one side of the first gear 6, the first gear 6 is in meshed connection with the second gear 7, the vertical Chinese-western line of the first gear 6 is coincident with the vertical Chinese-western line of the rotating shaft 4, a transmission disc 8 is arranged below the second gear 7, the surfaces of the transmission disc 8 and the second gear 7 are both connected with a transmission belt 9, a spiral rod 10 penetrates through the transmission disc 8, the tail end of the spiral rod 10 is connected with a motor 11, the spiral rod 10 and the transmission disc 8 form a rotating structure through the motor 11, the transmission disc 8 forms a transmission structure through the transmission belt 9 and the second gear 7, the spiral rod 10 is provided with two transmission discs 8 which are tightly meshed and rotate in different directions, the transmission disc 8 is fixed on the surface of one of the spiral rods 10, the transmission disc 8 rotates along with the spiral rod 10 and then drives the second gear 7 to rotate through the transmission belt 9 when the spiral, the second gear 7 drives the first gear 6 to enable the rotating shaft 4 to drive the stirring paddle 5 to rotate, the motor 11 drives the screw rod 10 to work and simultaneously drives the transmission disc 8 to rotate, the motor 11 achieves dual purposes, the utilization rate of the motor 11 is improved, and therefore resource waste is avoided;
The working principle is as follows: when the double-screw extruder with the preheating function is used, firstly, plastic particles are poured into the heating hopper 3, the heating hopper 3 is communicated with an external power supply to enable the heating hopper 3 to perform self-heating, the plastic particles can be preheated when the heating hopper 3 is heated, the plasticizing time of the plastic particles can be greatly reduced, the production efficiency can be improved, the inner wall of the heating hopper 3 is of an arc structure to prevent the plastic particles from being blocked, then the motor 11 drives the screw rod 10 to work and simultaneously drives the transmission disc 8 to rotate, the screw rod 10 is provided with two screw rods which are tightly meshed and rotate in different directions, the surface of one screw rod 10 is fixed with the transmission disc 8, the transmission disc 8 rotates when the screw rod 10 rotates and then drives the second gear 7 to rotate through the transmission belt 9, the second gear 7 drives the first gear 6 to enable the rotating shaft 4 to drive the stirring paddle 5 to rotate, and the stirring paddle 5 can stir the plastic particles in the heating hopper 3, the plastic particles flow, thereby being beneficial to the uniform heating of the plastic particles in the heating hopper 3, the motor 11 realizes dual purposes, the utilization rate of the motor 11 is improved, thereby avoiding the waste of resources, then the preheated plastic particles enter the feeding pipe 12 and then enter the extrusion box 1 through the feeding pipe 12, and one end of the feeding pipe 12 is provided with an electronic valve 13, the electronic valve 13 is connected with a control terminal through signals, the opening and closing degree of the electronic valve 13 is controlled by the control terminal to adjust the speed of plastic particles entering the extrusion box 1, so that the screw rod 10 can be saturated to avoid the accumulation of materials or the shortage of materials, finally the outer wall of the feeding pipe 12 is wrapped by the asbestos cloth 14, the asbestos cloth 14 has the function of heat preservation, the plastic particle temperature after the interior of the feeding pipe 12 is heated can be prevented from dissipating, and the model of the electronic valve 13 is N4V 210-08.
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 (6)
1. A double screw extruder with preheating function, including extrusion case (1), first gear (6) and inlet pipe (12), its characterized in that: a supporting frame (2) is fixed on the top surface of the extrusion box (1), a heating hopper (3) is connected with the inner side of the top of the supporting frame (2), a rotating shaft (4) penetrates through the center of the bottom of the inner wall of the heating hopper (3), and both sides of the top of the rotating shaft (4) are connected with stirring paddles (5), the first gear (6) is arranged at the bottom of the rotating shaft (4), a second gear (7) is arranged on one side of the first gear (6), a transmission disc (8) is arranged below the second gear (7), the surfaces of the transmission disc (8) and the second gear (7) are both connected with a transmission belt (9), a screw rod (10) penetrates through the transmission disc (8), the tail end of the screw rod (10) is connected with a motor (11), the feed pipe (12) is connected with the bottom of the heating hopper (3), and inlet pipe (12) one end is provided with electronic valve (13), inlet pipe (12) outer wall parcel has asbestos cloth (14).
2. A twin screw extruder with preheating function according to claim 1, characterized in that: the inner wall of the heating hopper (3) is of an arc-shaped structure, and the heating hopper (3) forms a supporting structure with the extrusion box (1) through the supporting frame (2).
3. A twin screw extruder with preheating function according to claim 1, characterized in that: the stirring paddle (5) forms a rotating structure through the rotating shaft (4), and the outer opening structure of the stirring paddle (5) is matched with the inner opening structure of the heating hopper (3).
4. A twin screw extruder with preheating function according to claim 1, characterized in that: the first gear (6) and the second gear (7) are in meshed connection, and the vertical central line of the first gear (6) and the vertical central line of the rotating shaft (4) are overlapped.
5. A twin screw extruder with preheating function according to claim 1, characterized in that: the screw rod (10) and the transmission disc (8) form a rotating structure through the motor (11), and the transmission disc (8) forms a transmission structure through the transmission belt (9) and the second gear (7).
6. A twin screw extruder with preheating function according to claim 1, characterized in that: the outer wall of inlet pipe (12) and the inner wall of asbestos cloth (14) laminate mutually, and inlet pipe (12) constitute insulation construction through asbestos cloth (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911297941.5A CN112976535A (en) | 2019-12-17 | 2019-12-17 | Double-screw extruder with preheating function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911297941.5A CN112976535A (en) | 2019-12-17 | 2019-12-17 | Double-screw extruder with preheating function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112976535A true CN112976535A (en) | 2021-06-18 |
Family
ID=76341787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911297941.5A Pending CN112976535A (en) | 2019-12-17 | 2019-12-17 | Double-screw extruder with preheating function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112976535A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4159407A1 (en) * | 2021-10-01 | 2023-04-05 | Continental Reifen Deutschland GmbH | Method for processing rubber mixtures in the production of vehicle tyres |
-
2019
- 2019-12-17 CN CN201911297941.5A patent/CN112976535A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4159407A1 (en) * | 2021-10-01 | 2023-04-05 | Continental Reifen Deutschland GmbH | Method for processing rubber mixtures in the production of vehicle tyres |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210618 |
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| WD01 | Invention patent application deemed withdrawn after publication |