CN211868572U

CN211868572U - Energy-saving double-screw extruder

Info

Publication number: CN211868572U
Application number: CN201821777402.2U
Authority: CN
Inventors: 刘新萍; 王雷
Original assignee: Zhejiang Sanjise New Material Co ltd
Current assignee: Zhejiang Sanjise New Material Co ltd
Priority date: 2018-10-31
Filing date: 2018-10-31
Publication date: 2020-11-06
Anticipated expiration: 2028-10-31

Abstract

The utility model provides an energy-saving double-screw extruder, which comprises a mounting seat, a motor base, a driving mechanism, a transmission cavity, a feed inlet, an extrusion cavity, a first screw rod, a discharge port, a second screw rod and an inner cavity, and the driving motor, a driving wheel, a flat belt and a driven wheel are arranged, so that when the extruder is blocked by materials, the driving motor can realize overload protection by itself, and the condition that the motor is damaged due to the accumulation of the materials is effectively avoided; the first screw rod and the second screw rod are set to be in a complete meshing state, the two screw rods are in anisotropic full meshing transmission, the gap between the two screw rods is small, materials are not prone to remaining on the screw rods, the self-cleaning performance is good, the shearing rate between the two screw rods is improved, the material dispersing and mixing effect is improved, the burden of manpower cleaning is relieved, and the energy-saving effect is achieved when the extrusion is carried out.

Description

Energy-saving double-screw extruder

Technical Field

The utility model belongs to the technical field of and macromolecular material production facility, especially, relate to an energy-conserving double screw extruder.

Background

The thermoplastic elastomer is a novel polymer material between rubber and resin, can replace partial rubber and can modify plastics, and the thermoplastic elastomer has the dual properties and wide characteristics of the rubber and the plastics, so that the thermoplastic elastomer is widely applied to manufacturing daily products such as rubber shoes and adhesive tapes and various industrial products such as rubber tubes, adhesive tapes and adhesives in the rubber industry. But the structure of the existing double-screw extruder is too complex, the energy consumption is large in the process of extruding materials, and a mechanism for filtering the materials is lacked, so that the quality of extruded products is influenced, and certain defectiveness is realized.

The invention discloses an energy-saving double-screw extruder with the Chinese patent publication number of CN 207579054U, and the name created by the invention is an energy-saving double-screw extruder, which comprises a main pipe body and an installation block, wherein the installation block is in threaded connection with one end of the main pipe body, the installation block is provided with an installation groove communicated with the main pipe body, the top of the installation block is provided with a driving motor, the output end of the driving motor is fixedly connected with a worm, one end of the worm, which is far away from the driving motor, penetrates through the outer wall of the installation block and extends inwards into the installation groove, the main pipe body is rotationally connected with two symmetrically arranged screw rods, one end of each screw rod sequentially penetrates through the pipe orifice of the main pipe body and the inner wall of the installation groove and extends outwards, one end of each screw rod, which. The utility model discloses a setting of many places drive mechanism and filter screen makes the device not only practice thrift the energy consumption, can carry out certain filtration to the material simultaneously to the extrusion quality of product has been promoted. However, the existing energy-saving double-screw extruder also has the problems that the self-cleaning function cannot be realized during extrusion, when the extruder is blocked by materials, the driving motor cannot realize overload protection by itself, the motor is easy to damage, in addition, the unidirectional non-meshing extrusion is adopted, the materials are easy to form infinity type wall sticking materials in an extrusion cavity, the shearing speed is low, and the mixing effect is poor.

Therefore, the invention of an energy-saving twin-screw extruder is very necessary.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an energy-conserving double screw extruder to solve current energy-saving double screw extruder and still having and can not realizing self-cleaning function when extruding, when the material blockking up appears in the extruder, driving motor can not oneself realize overload protection, cause the damage of motor easily, what its adoption was in addition that syntropy non-meshing extrudes, the material thing is extruding the intracavity and easily forms infinity type wall material, shear rate is little, the poor problem of mixed effect. An energy-saving double-screw extruder comprises a mounting seat, a motor seat, a driving mechanism, a transmission cavity, a feeding hole, an extrusion cavity, a first screw, a discharging hole, a second screw and an inner cavity, wherein 2 mounting seats are respectively welded on the upper side and the lower side of the right end of the transmission cavity; the motor base is welded in the middle position of the right end of the transmission cavity; the driving mechanism is arranged on the motor base through a bolt and penetrates through the wall of the transmission cavity; the feed inlet is fixed at the upper right end of the extrusion cavity through a bolt; the extrusion cavity is fixed on the left side of the transmission cavity through a bolt; the first screw is arranged in the extrusion cavity, penetrates through the right side wall of the extrusion cavity and is in rotary connection with the extrusion cavity through a bearing; the second screw rod is arranged below the first screw rod, penetrates through the right side wall of the extrusion cavity and is in rotary connection with the extrusion cavity through a bearing; the inner cavity and the extrusion cavity are integrated.

The driving mechanism comprises a driving motor, a driving wheel, a flat belt, a driven wheel and a gear, and the driving motor is arranged on the motor base through a bolt; the driving wheel is connected with an output shaft of the driving motor in a matching way; the driven wheel is arranged at the right end of the second screw rod and is in transmission connection with the driving wheel through a flat belt; two gears are adopted; the first screw rod and the second screw rod are respectively connected in an interference fit manner and are meshed with each other; the driving motor is specifically a YB65L-4/1.5KW motor.

The screw threads of the first screw rod and the second screw rod are set to be in a complete meshing state, the two screw rods are in anisotropic full meshing transmission, the gap between the two screw rods is small, materials are not prone to remaining on the screw rods, the self-cleaning performance is good, the burden of manual cleaning is relieved, and the energy-saving effect is achieved when the extrusion is conducted.

The screw groove that can mesh with first screw rod and second screw rod is seted up on the inner wall of inner chamber, and its cross section sets up to 8 fonts, has reduced the screw rod and has extruded the clearance between the chamber, effectively avoids the material thing to easily form infinity type wall material in extruding the chamber, can not appear leaking and flow phenomenon, has improved the output of extruder.

The running states of the first screw and the second screw are in different directions and are fully meshed, so that the material dispersing and mixing effect is improved.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses driving motor, action wheel, flat belt, from the setting of driving wheel, be favorable to when the material blockked up appearing in the extruder, driving motor can oneself realize overload protection, and the effectual condition of avoiding piling up the damage that causes the motor because of the material takes place.

2. The utility model discloses a first screw rod and second screw rod set up to complete meshing state to adopt the transmission of incorgruous full meshing, the clearance is little between two screw rods, is difficult for residual material on the screw rod, has good self-cleaning nature, has improved the shear rate between two screw rods, has improved the material dispersion and has mixed the effect, has not only alleviateed the burden of manpower clearance, has still played energy-conserving effect when extruding moreover.

3. The inner cavity of the utility model is provided with the thread groove which can be meshed with the first screw rod and the second screw rod, and the cross section of the inner cavity is arranged to be 8-shaped, thereby reducing the clearance between the screw rods and the extrusion cavity, effectively avoiding the materials from easily forming infinity type wall pasting materials in the extrusion cavity,

the leakage phenomenon can not occur, and the production capacity of the extruder is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the driving mechanism of the present invention.

Fig. 3 is a schematic view of the section a-a of the extrusion chamber of the present invention.

In the figure:

1-mounting seat, 2-motor seat, 3-driving mechanism, 31-driving motor, 32-driving wheel, 33-flat belt, 34-driven wheel, 35-gear, 4-transmission cavity, 5-feeding hole, 6-extrusion cavity, 7-first screw, 8-discharging hole, 9-second screw and 10-inner cavity.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

example (b):

as shown in figures 1 to 3

The utility model provides an energy-saving double-screw extruder, which comprises a mounting seat 1, a motor base 2, a driving mechanism 3, a transmission cavity 4, a feed inlet 5, an extrusion cavity 6, a first screw 7, a discharge port 8, a second screw 9 and an inner cavity 10, wherein 2 mounting seats 1 are respectively welded on the upper side and the lower side of the right end of the transmission cavity 4; the motor base 2 is welded in the middle position of the right end of the transmission cavity 4; the driving mechanism 3 is arranged on the motor base 2 through a bolt and penetrates through the cavity wall of the transmission cavity 4; the feeding hole 5 is fixed at the upper right end of the extrusion cavity 6 through a bolt; the extrusion cavity 6 is fixed on the left side of the transmission cavity 4 through a bolt; the first screw 7 is arranged in the extrusion cavity 6, penetrates through the right side wall of the extrusion cavity 6 and is in rotary connection with the extrusion cavity through a bearing; the second screw 9 is arranged below the first screw 7, penetrates through the right side wall of the extrusion cavity 6 and is in rotary connection with the extrusion cavity through a bearing; the inner cavity 10 and the extrusion cavity 6 are integrated.

The driving mechanism 3 comprises a driving motor 31, a driving wheel 32, a flat belt 33, a driven wheel 34 and a gear 35, wherein the driving motor 31 is installed on the motor base 2 through a bolt; the driving wheel 32 is connected with an output shaft of the driving motor 31 in a matching way; the driven wheel 34 is arranged at the right end of the second screw 9 and is in transmission connection with the driving wheel 32 through a flat belt 33; two gears 35 are adopted; are respectively connected with the first screw 7 and the second screw 9 in an interference fit way and are meshed with each other; the driving motor 31 specifically adopts a YB65L-4/1.5KW motor.

The first screw 7 and the second screw 9 are set to be in a complete meshing state, and are in anisotropic full meshing transmission, so that a gap between the two screws is small, materials are not easy to remain on the screws, the self-cleaning performance is good, the burden of manual cleaning is relieved, and an energy-saving effect is achieved during extrusion.

Threaded grooves capable of being meshed with the first screw 7 and the second screw 9 are formed in the inner wall of the inner cavity 10, the cross section of the threaded grooves is 8-shaped, the gap between the screws and the extrusion cavity is reduced, infinite wall-sticking materials are effectively prevented from being easily formed in the extrusion cavity, the phenomenon of leakage cannot occur, and the production capacity of the extruder is improved.

The first screw 7 and the second screw 9 are in different-direction full meshing, so that the shearing rate between the two screws is improved, and the material dispersing and mixing effect is improved.

Principle of operation

In the utility model, during operation, firstly, the material is led into the extrusion cavity 6 through the feed inlet 5, the material is heated by the preheating mechanism, the driving motor 31 in the driving mechanism 3 transmits power to the driven wheel 34 through the driving wheel 32 and the flat belt 33, the driven wheel 34 drives the second screw 9 to rotate, and the first screw 7 is driven by the meshing of the gear 35, the first screw 7 and the second screw 9 are in different-direction meshing transmission and extrude the material, and the material is extruded out through the discharge port 8, in the extrusion process, because the thread grooves which can be meshed with the first screw 7 and the second screw 9 are arranged on the inner wall of the inner cavity 10, the clearance between the screws and the extrusion cavity 8 is reduced, the problem that the material is easy to form infinity-type wall-sticking material in the extrusion cavity 8 is effectively avoided, the phenomenon of leakage can not occur, the production capacity of the extruder is improved, and the first screw 7 and the second screw 9 are set to be in a complete meshing state, and the transmission is realized by adopting the anisotropic full meshing transmission, the gap between the two screw rods is small, the materials are not easy to remain on the screw rods, the self-cleaning property is good, the shearing rate between the two screw rods is improved, and the material dispersing and mixing effect is improved.

Utilize technical scheme, or technical personnel in the field are in the utility model discloses under technical scheme's the inspiration, design similar technical scheme, and reach above-mentioned technological effect, all fall into the utility model discloses a protection scope.

Claims

1. An energy-saving double-screw extruder is characterized in that: the device comprises a mounting seat (1), a motor seat (2), a driving mechanism (3), a transmission cavity (4), a feeding hole (5), an extrusion cavity (6), a first screw (7), a discharging hole (8), a second screw (9) and an inner cavity (10), wherein 2 mounting seats (1) are respectively welded on the upper side and the lower side of the right end of the transmission cavity (4); the motor base (2) is welded in the middle position of the right end of the transmission cavity (4); the driving mechanism (3) is installed on the motor base (2) through a bolt and penetrates through the wall of the transmission cavity (4); the feeding hole (5) is fixed at the upper right end of the extrusion cavity (6) through a bolt; the extrusion cavity (6) is fixed on the left side of the transmission cavity (4) through a bolt; the first screw (7) is arranged in the extrusion cavity (6), penetrates through the right side wall of the extrusion cavity (6) and is in rotary connection with the extrusion cavity through a bearing; the second screw (9) is arranged below the first screw (7), penetrates through the right side wall of the extrusion cavity (6) and is in rotary connection with the extrusion cavity through a bearing; the inner cavity (10) and the extrusion cavity (6) are integrated.

2. The energy-saving twin-screw extruder as claimed in claim 1, wherein: the driving mechanism (3) comprises a driving motor (31), a driving wheel (32), a flat belt (33), a driven wheel (34) and a gear (35), and the driving motor (31) is installed on the motor base (2) through a bolt; the driving wheel (32) is connected with an output shaft of the driving motor (31) in a matching way; the driven wheel (34) is arranged at the right end of the second screw rod (9) and is in transmission connection with the driving wheel (32) through a flat belt (33); two gears (35) are adopted; are respectively connected with the first screw (7) and the second screw (9) in an interference fit way and are meshed with each other; the driving motor (31) is a YB65L-4/1.5KW motor.

3. The energy-saving twin-screw extruder as claimed in claim 1, wherein: the threads of the first screw (7) and the second screw (9) are set in a fully meshed state.

4. The energy-saving twin-screw extruder as claimed in claim 1, wherein: the inner wall of the inner cavity (10) is provided with a thread groove which can be meshed with the first screw rod (7) and the second screw rod (9), and the cross section of the thread groove is 8-shaped.

5. The energy-saving twin-screw extruder as claimed in claim 1, wherein: the first screw (7) and the second screw (9) are in different-direction full meshing operation.