Shearing-enhanced twin-screw extruder

Abstract

The utility model relates to a double-screw extruder capable of strengthening shearing, which belongs to the technical field of extruders and comprises an extruder body, a charging barrel is fixedly mounted at the top end of the extruder body, a storage barrel is arranged at the top end of the charging barrel, and a rotating shaft is rotatably mounted in the storage barrel. The feeding device has the advantages that when feeding is needed, materials can be fed into the storage barrel through the feeding hopper and stored above the weighing disc, at the moment, the weighing disc is squeezed to move downwards, then the pressure sensor is squeezed, and when the weight of the materials on the weighing disc reaches a preset value of the pressure sensor, the weighing disc is separated from the pressure sensor. When materials are injected, information is transmitted to a controller, a driving source of the rotating shaft is controlled by the controller to be started, then the rotating shaft and the weighing disc can be driven to turn over, the purpose of automatically weighing the materials can be achieved, the feeding amount can be accurately controlled during material injection, and the material matching precision can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to extruder technical field especially relates to a reinforced shear's double screw extruder. BACKGROUND

[0002] The double screw extruder is a kind of equipment used in the production process of plastic, which is used when extruding plastic, can improve production speed, and has wide application in the extrusion equipment field;It is widely used in the filling, blending, modification, enhancement, chlorinated polypropylene and high water-absorbing resin devolatilization treatment of plastic and engineering resin;Or used for the extrusion molding after the mixing of microcrystalline floor raw materials.

[0003] Through the retrieval, China patent discloses a kind of double screw extruder (authorized announcement number CN205951248U), including body and the supporting leg of setting at the bottom of body, the body includes first shell and second shell, the first shell and second shell are cylindrical and intercommunicate, and the right end of the rotating rod is stretched out body, the right end of the rotating rod is connected with driven wheel, the right side of the support plate is also fixedly installed with rotating motor, the output end of the rotating motor is connected with driving wheel, the driving wheel and driven wheel are connected by connecting belt, the right side bottom of the body is equipped with discharge pipe, the top right side of the body is equipped with feed hopper, the top of the feed hopper is hinged with sealing cover, the side of the supporting leg is equipped with controller, the rotating motor is electrically connected to controller, the patent technology can greatly improve work efficiency by the design of double screw propelling device, with very high practicability.

[0004] But the above-mentioned device still has some shortcomings in actual use, more obvious is that the above-mentioned double screw extruder in use process, staff can inject material into the inside of extruder by feed hopper, but the above-mentioned material injection cannot accurately control the amount of feeding, so that the proportioning of different materials deviates, affects the quality of product. INVENTION CONTENTS

[0005] In view of the above problems existing in the prior art, the main purpose of the utility model is to provide a kind of reinforced shear's double screw extruder.

[0006] The technical scheme of the utility model is as follows: a kind of reinforced shear's double screw extruder, including extruder body, the top of the extruder body is fixedly installed with barrel, the top of the barrel is provided with storage cylinder, rotatingly installed in the inside of the storage cylinder, the outside of the rotating shaft is fixedly connected with fixed disc, the fixed disc is matched with the inside of weighing disc, the inner wall of the weighing disc and fixed disc is slidably connected, the inner wall of the fixed disc is fixedly installed with pressure sensor, the inductive head in the pressure sensor is in contact with the weighing disc, the top of the extruder body is fixedly installed with controller.

[0007] By adopting the technical scheme, the weighing disc is pressed to move downwards, and then the pressure sensor is pressed, and when the weight of the material on the weighing disc reaches the preset value of the pressure sensor, information is transmitted to the controller, and the driving source of the rotating shaft is started to drive the rotating shaft and the weighing disc to overturn, so that the automatic weighing of the material is realized.

[0008] As a preferred embodiment, the inside of the barrel is provided with an extrusion assembly, the extrusion assembly comprises two screw bodies rotatably installed in the inside of the barrel, the inner wall of the barrel is equidistantly fixedly connected with a small-diameter hob, the small-diameter hob is arranged between the two screw bodies, and the axis of the small-diameter hob is arranged at an angle with the axis of the screw body.

[0009] By adopting the technical scheme, a series of small-diameter hobs are arranged in parallel, the axis of the small-diameter hob is arranged at an angle with the axis of the screw body, and the small-diameter hob is used in cooperation with the screw body to form a powerful shearing area and effectively break the material lumps.

[0010] As a preferred embodiment, the outside of the cartridge is provided with a transmission assembly, the transmission assembly comprises a support plate fixedly connected to the outside of the cartridge, and a servo motor is fixedly installed at the top end of the support plate.

[0011] By adopting the technical scheme, the output shaft of the servo motor can drive the driving gear to rotate.

[0012] As a preferred embodiment, the transmission assembly further comprises a driving gear fixedly connected to the output shaft of the servo motor, one end of the rotating shaft extends to the outside of the cartridge and is fixedly connected with a driven gear, and the driven gear is meshingly connected with the driving gear.

[0013] By adopting the technical scheme, the rotation of the driving gear can drive the rotation of the driven gear, and the overturning operation of the rotating shaft can be realized.

[0014] As a preferred embodiment, the inside of the barrel is provided with a heating assembly, the heating assembly comprises a heating plate fixedly installed on the inner wall of the barrel, and the heating plate has a ring structure.

[0015] By adopting the technical scheme, the material on the inner wall of the barrel can be heated by the heating plate, so that the phenomenon of blockage of the material during conveying can be avoided.

[0016] As a preferred implementation, the inner part of the fixed disc is provided with a limiting assembly, the limiting assembly comprises limiting grooves equidistantly arranged on the inner wall of the fixed disc, and a limiting block is slidably arranged in each limiting groove.

[0017] By using the limiting block and the limiting groove, the weighing disc can be limited, and the weighing disc can not fall off during use.

[0018] As a preferred implementation, the top of the extruder body is fixedly connected with a speed reducer on one side of the barrel, and a driving motor is fixedly arranged at one end of the top of the extruder body, the output shaft of the driving motor is connected with one of the screw bodies through the speed reducer, the outer side of each screw body is fixedly connected with a first gear, the two first gears are meshed and connected, the top of the barrel is fixedly connected with a feeding hopper, and the top of the feeding hopper is hingedly connected with a sealing plate.

[0019] By rotating the output shaft of the driving motor, the screw body can be rotated, so that one of the screw bodies can be rotated, and the first gear can be used to rotate the two screw bodies at the same time.

[0020] As a preferred implementation, the bottom of the barrel is fixedly connected with a discharging pipe, and the inner part of the extruder body is provided with a plurality of tool boxes.

[0021] By using the tool box, the maintenance tools can be stored.

[0022] Compared with the prior art, the utility model has the advantages and positive effects that,

[0023] 1. When the material needs to be fed, the material can be fed into the inner part of the barrel through the feeding hopper and stored above the weighing disc, at this time, the weighing disc is pressed and moves downward, thereby pressing the pressure sensor, when the weight of the material on the weighing disc reaches the preset value of the pressure sensor, information is transmitted to the controller, the driving source of the rotating shaft is started through the controller, thereby driving the rotating shaft and the weighing disc to overturn, so that the automatic weighing of the material can be realized, and the feeding amount can be accurately controlled during feeding, and the material proportioning accuracy is improved.

[0024] 2. The utility model discloses, through screw body is divided into two kinds of forms of left -hand and right -hand, staggered arrangement in the material cylinder, through the synchronous rotation of first gear, realize the function of forward conveying material, and the two screw body is between by a series of parallelly arranged small diameter hob composition, and the small diameter hob axis and screw body axis is a certain angle cross arrangement, and with screw body cooperation uses, forms the powerful shearing zone, effectively breaks the material lump, promotes the full contact and mixing between microgranular. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The utility model provides a kind of overall perspective view of reinforced shearing double-screw extruder;

[0026] Figure 2 The utility model provides a kind of internal structure schematic diagram of reinforced shearing double-screw extruder barrel;

[0027] Figure 3 The utility model provides a kind of feeding barrel structure schematic diagram of reinforced shearing double-screw extruder;

[0028] Figure 4 The utility model provides a kind of reinforced shearing double-screw extruder Figure 3 The utility model provides a kind of enlarged view of A place in.

[0029] Legend: 1, extruder body;2, rotating shaft;3, driving motor;4, controller;5, speed reducer;6, driven gear;7, storage cylinder;8, barrel;9, screw body;10, first gear;11, heating plate;12, small diameter hob;13, fixed disc;14, pressure sensor;15, weighing disc;16, driving gear;17, feed hopper;18, limit block;19, limit slot;20, servo motor. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0031] REFERENCE Figures 1-4The utility model provides a reinforced shear double screw extruder, including extruder body 1, the top of extruder body 1 is fixedly installed with barrel 8, the top of barrel 8 is provided with storage cartridge 7, the inside rotation of storage cartridge 7 is installed with the shaft 2, the outside fixed connection of shaft 2 is connected with fixed disc 13, fixed disc 13 is in accord with the inside of weighing disc 15, weighing disc 15 is connected with the inner wall of fixed disc 13 slidingly, the inner wall fixed mounting of fixed disc 13 is provided with pressure sensor 14, and the inductive head in pressure sensor 14 is in contact with weighing disc 15, the top of extruder body 1 is fixedly installed with controller 4, when needing to carry out feeding, material can be fed into the inside of storage cartridge 7 through feed hopper 17 and stored in the above of weighing disc 15, weighing disc 15 is pressed and moves down at this time, and then will press pressure sensor 14, and when the weight of material on weighing disc 15 reaches the preset value of pressure sensor 14, will pass information to controller 4, and the driving source of shaft 2 is started through controller 4 control, and then can drive shaft 2 and weighing disc 15 and overturn, to this can realize the automatic weighing purpose of material, and then can accurately control the feeding amount when injecting, improves material proportioning accuracy.

[0032] Refer to Figure 2 The inside of barrel 8 is provided with an extrusion assembly, which comprises two screw bodies 9 rotatably installed in the inside of barrel 8, and small-diameter hobs 12 equidistantly fixedly connected to the inner wall of barrel 8, the small-diameter hobs 12 being arranged between the two screw bodies 9 and intersecting with the screw body 9 axis at a certain angle, the screw bodies 9 being divided into left-handed and right-handed forms and being staggered in barrel 8 and synchronously rotating through the first gear 10 to realize the function of forward conveying material, and the small-diameter hobs 12 between the two screw bodies 9 being arranged in parallel and intersecting with the screw body 9 axis at a certain angle and being used in cooperation with the screw body 9 to form a powerful shearing area, effectively crushing material lumps and promoting sufficient contact and mixing between fine particles.

[0033] Refer to Figure 3 The outside of storage cartridge 7 is provided with a transmission assembly, which comprises a support plate fixedly connected to the outside of storage cartridge 7, a servo motor 20 fixedly installed at the top of the support plate, and the output shaft of the servo motor 20 being capable of driving the driving gear 16 to rotate to realize power transmission.

[0034] Refer to Figure 3 The transmission assembly further comprises a driving gear 16 fixedly connected to the output shaft of the servo motor 20, and a driven gear 6 fixedly connected to one end of the shaft 2 extending to the outside of storage cartridge 7, the driven gear 6 being meshingly connected with the driving gear 16, the driving gear 16 being capable of driving the driven gear 6 to rotate to realize the overturning operation of the shaft 2.

[0035] With reference to Figure 2 The interior of the barrel 8 is provided with a heating assembly, which comprises a heating plate 11 fixedly installed on the inner wall of the barrel 8. The heating plate 11 has an annular structure. Through the arrangement of the heating plate 11, the material on the inner wall of the barrel 8 can be heated, thereby avoiding the blocking of the material during the conveying process.

[0036] With reference to Figure 4 The interior of the fixed disc 13 is provided with a limiting assembly, which comprises limiting grooves 19 equidistantly formed in the inner wall of the fixed disc 13. The limiting grooves 19 are each slidably installed with a limiting block 18. The limiting blocks 18 are each fixedly connected to the outer side of the weighing disc 15. Through the cooperation of the limiting blocks 18 and the limiting grooves 19, the weighing disc 15 can be effectively limited, thereby avoiding the falling of the weighing disc 15 during use, and ensuring the normal operation of the material weighing.

[0037] With reference to Figure 3 The top of the extruder body 1 and on one side of the barrel 8 is fixedly installed with a speed reducer 5. One end of the top of the extruder body 1 is fixedly installed with a driving motor 3. The output shaft of the driving motor 3 is connected with one of the screw bodies 9 through the speed reducer 5. The outer side of each screw body 9 is fixedly connected with a first gear 10. The two first gears 10 are meshingly connected. The top end of the storage cylinder 7 is fixedly connected with a feeding hopper 17. The top end of the feeding hopper 17 is hingedly connected with a sealing plate. Through the rotation of the output shaft of the driving motor 3, the screw body 9 can be driven to rotate, so that one of the screw bodies 9 can be driven to rotate. Through the action of the first gear 10, the two screw bodies 9 can be simultaneously rotated.

[0038] With reference to Figure 1 The bottom end of the storage cylinder 7 is fixedly installed with a discharging pipe. The bottom end of the discharging pipe is fixedly connected with the barrel 8. The interior of the extruder body 1 is provided with a plurality of tool boxes. Through the action of the tool boxes, the maintenance tools can be stored.

[0039] Working principle: first, when the material needs to be added, the sealing plate on the feeding hopper 17 can be opened. The material is added into the interior of the storage cylinder 7 through the feeding hopper 17 and stored above the weighing disc 15. At this time, the weighing disc 15 is pressed downward, thereby pressing the pressure sensor 14. When the weight of the material on the weighing disc 15 reaches the preset value of the pressure sensor 14, the information is transmitted to the controller 4. The servo motor 20 is started through the controller 4. Through the rotation of the driving gear 16, the rotation of the driven gear 6 can be driven, thereby realizing the overturning operation of the rotating shaft 2. The automatic weighing of the material can be realized, thereby accurately controlling the feeding amount during the material injection.

[0040] And the screw body 9 is divided into left-handed and right-handed two forms, staggered arrangement in the barrel 8, through the first gear 10 synchronous rotation, realize the function of forward conveying material, and two screw body 9 between by a series of parallel small diameter hob 12 is composed, the small diameter hob 12 axis and screw body 9 axis is a certain angle cross arrangement, and with screw body 9 cooperation, form a powerful shear zone, effectively crush material lump, promote the full contact and mixing between micro particles;

[0041] By the rotation of the output shaft of the driving motor 3, the screw body 9 can be driven to rotate, so that one of the screw bodies 9 can be driven to rotate, and the first gear 10 can realize the simultaneous rotation of the two screw bodies 9, and through the cooperation of the limiting block 18 and the limiting groove 19, the weighing disc 15 can be limited, avoiding the weighing disc 15 from falling off during use, to ensure the normal operation of the material weighing.

[0042] In the description of the present application, it should be explained that, unless otherwise explicitly provided and limited, the terms "installation", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication between two elements, for those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific situation.

[0043] The above is only the preferred embodiment of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A twin-screw extruder reinforced for shear comprising an extruder body (1) characterized by: The top end of the extruder body (1) is fixedly installed with a barrel (8), the top end of the barrel (8) is provided with a storage cartridge (7), the inside of the storage cartridge (7) is rotatably installed with a rotating shaft (2), the outer side of the rotating shaft (2) is fixedly connected with a fixed disc (13), the fixed disc (13) is matched with the inside of a weighing disc (15), the weighing disc (15) is slidably connected with the inner wall of the fixed disc (13), the inner wall of the fixed disc (13) is fixedly installed with a pressure sensor (14), the induction heads in the pressure sensor (14) are in contact with the weighing disc (15), and the top end of the extruder body (1) is fixedly installed with a controller (4).

2. A twin-screw extruder with enhanced shear according to claim 1, characterized in that: The inside of the barrel (8) is provided with an extrusion assembly, the extrusion assembly comprises two screw bodies (9) rotatably installed in the inside of the barrel (8), the inner wall of the barrel (8) is equidistantly fixedly connected with small-diameter hob cutters (12), the small-diameter hob cutters (12) are arranged between the two screw bodies (9), and the axes of the small-diameter hob cutters (12) and the screw bodies (9) are arranged in cross at a certain angle.

3. A twin-screw extruder with enhanced shear according to claim 1, characterized in that: The outer side of the storage cartridge (7) is provided with a transmission assembly, the transmission assembly comprises a supporting plate fixedly connected to the outer side of the storage cartridge (7), and the top end of the supporting plate is fixedly installed with a servo motor (20).

4. A twin-screw extruder with enhanced shear according to claim 3, characterized in that: The transmission assembly further comprises a driving gear (16) fixedly connected to the output shaft of the servo motor (20), one end of the rotating shaft (2) extends to the outer side of the storage cartridge (7) and is fixedly connected with a driven gear (6), and the driven gear (6) is in meshing connection with the driving gear (16).

5. A twin-screw extruder with enhanced shear according to claim 1, characterized in that: The inside of the barrel (8) is provided with a heating assembly, the heating assembly comprises a heating plate (11) fixedly installed on the inner wall of the barrel (8), and the heating plate (11) has an annular structure.

6. A twin-screw extruder with enhanced shear according to claim 1, characterized in that: The inside of the fixed disc (13) is provided with a limiting assembly, the limiting assembly comprises limiting grooves (19) equidistantly formed in the inner wall of the fixed disc (13), and limiting blocks (18) are slidably installed in the inside of the limiting grooves (19).

7. A twin-screw extruder with enhanced shear according to claim 1, characterized in that: The top of the extruder body (1) and one side of the barrel (8) are fixedly installed with a speed reducer (5), one end of the top of the extruder body (1) is fixedly installed with a driving motor (3), the output shaft of the driving motor (3) is connected with one of the screw bodies (9) through the speed reducer (5), the outer side of the screw body (9) is fixedly connected with a first gear (10), the two first gears (10) are in meshing connection, the top of the storage cartridge (7) is fixedly connected with a feeding hopper (17), and the top of the feeding hopper (17) is hingedly connected with a sealing plate.

8. A twin-screw extruder with enhanced shear according to claim 1, characterized in that: The bottom end of the storage cartridge (7) is fixedly installed with a discharging pipe, the bottom end of the discharging pipe is fixedly connected with the barrel (8), and the inside of the extruder body (1) is provided with a plurality of tool boxes.

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