CN220008431U - Twin-screw extruder for granulating modified materials - Google Patents

Abstract

The utility model relates to the technical field of modified material granulating devices, and discloses a double-screw extruder for granulating modified materials, which comprises an extruder outer frame, wherein the front end of the extruder outer frame is fixedly connected with a modified material front filling pipe, and the inner side of the modified material front filling pipe is provided with a modified material filling groove. This twin-screw extruder for modified material granulation is installed in the outside of filling pipe before the modified material through the cutting disc to the cutter is installed to the inboard of cutting disc, and the outside at the discharge opening is installed to the cutter simultaneously, carries out meshing motion between auxiliary gear and two cutting discs simultaneously, and the rotation of cutting disc is the same, and the in-process is rotated to the cutting disc simultaneously, and the cutting disc can carry out the cutting to the modified material of modified material preceding filling pipe extrusion to the modified material cutting is the granule of equidimension, thereby keeps the fashioned homogeneity of pelletization to the modified material pelletization in-process.

Description

Twin-screw extruder for granulating modified materials

Technical Field

The utility model relates to the technical field of modified material granulating devices, in particular to a double-screw extruder for granulating modified materials.

Background

The modified material is processed and modified by filling, blending, reinforcing and other methods, and the performance in the aspects of flame retardance, strength, impact resistance, toughness and the like is improved, so that the modified material is required to be produced into particles for increasing the convenience of use in the production of the modified material, and meanwhile, the double-screw extruder is utilized for extrusion to form the modified material during the production of the particle material, so that the double-screw extruder for granulating the modified material is developed.

In the existing double-screw extruder for granulating modified materials, after the double-screw extruder drives particles to extrude, in order to ensure the cutting and forming of the granular materials, a cutting knife is needed to be used for cutting and forming of the granular materials, the rotating speed of the cutting knife is driven by a motor, the rotating speed of a gear is driven to be adjusted after the power of a control motor is adjusted, but the power of the control motor can be changed because of uneven friction force and voltage supply generated between gears, the power of the motor can be changed, after the power of the motor is adjusted, the power of the control motor drives a cutting device to rotate, the rotating speed of the cutting device is uneven, and the rotating speed of the cutting device is uneven, so that the cutting uniformity of the modified materials can be affected.

Disclosure of Invention

The utility model provides a double-screw extruder for granulating modified materials, which aims at overcoming the defects of the existing double-screw extruder for granulating modified materials, and has the advantages that through adjusting the positions of a supporting seat and a telescopic adjusting rod, a motor gear can carry out meshing motion with gears with different diameters outside a layered gear, after the meshing motion between the different diameters outside the layered gear and the motor gear, the diameters of the gears are different under the same state after the power of the motor gear is kept in the same state, the rotating speed of a first gear can be adjusted, the rotating speed of the first gear is kept in a stable state, simultaneously, in the rotating process of the first gear, the first gear and an auxiliary gear carry out meshing motion, the auxiliary gear drives a cutting disc to rotate, and meanwhile, the cutting disc can carry out cutting forming maintenance uniformity on the pushed modified materials after the cutting disc rotates.

The utility model provides the following technical scheme: the utility model provides a twin-screw extruder for modified material granulation, includes the outer frame of extruder, the front end fixedly connected with modified material front filler pipe of outer frame of extruder, modified material filling groove has been seted up to the inboard of modified material front filler pipe, the rear end activity of outer frame of extruder has cup jointed the backplate, screw rod one and screw rod two are installed respectively to the inboard of backplate, the outside activity of modified material front filler pipe front end has cup jointed the cutting disc, the upper portion fixedly connected with material collecting box of outer frame rear end of extruder, the inboard fixedly connected with reposition of redundant personnel baffle of material collecting box lower part, the middle part movable sleeve of modified material front filler pipe front end has auxiliary gear, the front end fixedly connected with slide rail of outer frame upper portion of extruder, the inside activity sleeve of slide rail has the supporting seat, the inboard activity sleeve of supporting seat has the telescopic adjusting lever, the outside of telescopic adjusting lever is installed back limiting plate, the outside fixedly connected with height limiting baffle of telescopic adjusting lever, the front end fixedly connected with split stream motor, the front end fixedly connected with stirring vane of material collecting box, the front end fixedly connected with stirring vane of outer frame upper portion has the gear, the front end of movable sleeve joint of gear of outer frame has the layering gear.

Preferably, the first helical blade and the second helical blade are respectively arranged outside the first screw and the second screw, a screw limiting screw is arranged in the middle of the front end of the modified material front filling pipe, the first helical blade and the second helical blade are movably sleeved in a mutually crossed mode, the screw pitch of the first helical blade is smaller than that of the second helical blade, and the screw limiting screw penetrates through the modified material front filling pipe and is limited in the first screw and the second screw in a threaded mode.

Preferably, the inside of the lower part of the modified material front filling pipe is provided with a groove, the outer side of the modified material filling groove is arc-shaped, the inside of the front end of the modified material front filling pipe is provided with a discharging hole, and the inside of the extruder outer frame is provided with a heating device.

Preferably, the two sides of the flow dividing baffle are in a twenty-five-degree inclined baffle plate shape, the lower parts of the stirring fan blades are clung to the upper parts of the flow dividing baffle plates, and the motor is arranged on the outer sides of the upper parts of the stirring fan blades.

Preferably, two cutting disks are arranged on the outer side of the modified material front filling pipe, the auxiliary gears are respectively connected with the two cutting disks in a meshed mode, a cutting knife is arranged on the outer side of the middle of the cutting disk, and the cutting knife is arranged on the outer side of the modified material front filling pipe and is provided with a discharging hole.

Preferably, the back limiting plate can be movably sleeved outside the height limiting baffle, a nut is arranged outside the back limiting plate, the outer sides of the layered gears are mutually overlapped and placed by multiple layers of gears with different sizes, the motor gears are sequentially meshed and connected with the gears arranged on the outer sides of the layered gears, and the first gears are meshed and connected with the auxiliary gears.

Compared with the existing twin-screw extruder for granulating modified materials, the utility model has the following beneficial effects:

1. this twin-screw extruder for modified material granulation is installed in the outside of filling pipe before the modified material through the cutting disc to the cutter is installed to the inboard of cutting disc, and the outside at the discharge opening is installed to the cutter simultaneously, carries out meshing motion between auxiliary gear and two cutting discs simultaneously, and the rotation of cutting disc is the same, and the in-process is rotated to the cutting disc simultaneously, and the cutting disc can carry out the cutting to the modified material of modified material preceding filling pipe extrusion to the modified material cutting is the granule of equidimension, thereby keeps the fashioned homogeneity of pelletization to the modified material pelletization in-process.

2. The double-screw extruder for granulating the modified materials is characterized in that the position of the supporting seat outside the sliding rail is adjusted, meanwhile, the position of the telescopic adjusting rod inside the supporting seat is adjusted, the motor gear can be meshed with gears with different diameters outside the layered gears, the rear limiting plate is clamped outside the height limiting baffle, the rear limiting plate drives the telescopic adjusting rod to adjust, the motor is started, the motor drives the layered gears to rotate at a controlled speed, meanwhile, the first gear drives the auxiliary gears to rotate at a controlled speed after the first gear rotates at a controlled speed, the rotating speed of the cutting disc can be adjusted, the pushing length of the modified materials can be adjusted after the rotating speed of the cutting disc is adjusted, and the formed particles can be controlled after the rotating speed of the cutting disc is adjusted.

Drawings

FIG. 1 is a schematic diagram of the main structure of the present utility model;

FIG. 2 is a schematic view of a partial cross-sectional structure of a feeding device of the present utility model;

FIG. 3 is a schematic view of the structure of the front end of the extruder of the present utility model in partial cross-section;

FIG. 4 is a schematic view of a partial enlarged structure of a rotational speed control and adjustment device according to the present utility model;

FIG. 5 is a schematic view of a double screw partial enlarged structure of the present utility model.

In the figure: 1. an extruder outer frame; 2. filling a tube in front of the modified material; 3. the modified material fills the groove; 4. a rear baffle; 5. a first screw; 6. a second screw; 7. a first helical blade; 8. a second helical blade; 9. the screw rod defines a screw; 10. cutting the disc; 11. a material collection box; 12. a shunt baffle; 13. stirring fan blades; 14. an auxiliary gear; 15. a slide rail; 16. a support base; 17. a telescopic adjusting rod; 18. a rear defining plate; 19. a height defining baffle; 20. a motor; 21. a motor gear; 22. a layered gear; 23. a first gear.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, 2, 3, 4 and 5, a twin-screw extruder for granulating a modified material includes an extruder outer frame 1, a modified material front filling pipe 2 fixedly connected to the front end of the extruder outer frame 1, the modified material front filling pipe 2 defining the front ends of a first screw 5 and a second screw 6 and collecting the modified material, a modified material filling groove 3 provided on the inner side of the modified material front filling pipe 2, the modified material filling groove 3 driving the modified material to collect and send to the inner side of the modified material front filling pipe 2, a back baffle 4 movably sleeved on the back end of the extruder outer frame 1, the back baffle 4 defining the back ends of the first screw 5 and the second screw 6, the inner side of the back baffle 4 being provided with the first screw 5 and the second screw 6, the first screw 5 and the second screw 6 rotating, the screw 5 and the screw 6 drive the modified materials to rotate and overlap to convey inwards, the outside of the front end of the modified material front filling pipe 2 is movably sleeved with a cutting disc 10, the cutting disc 10 rotates, the cutting disc 10 cuts the modified materials pushed out of the modified material front filling pipe 2 into particles, the upper part of the rear end of the outer frame 1 of the extruder is fixedly connected with a material collecting box 11, the material collecting box 11 drives the modified materials to collect, the inner side of the lower part of the material collecting box 11 is fixedly connected with a diversion baffle 12, the diversion baffle 12 drives the modified materials to disperse and diffuse towards two sides, the middle part of the material collecting box 11 is provided with a stirring fan blade 13, the stirring fan blade 13 drives the filled modified materials to carry out mixing and stirring treatment, the middle part of the front end of the modified material front filling pipe 2 is movably sleeved with an auxiliary gear 14, the auxiliary gear 14 drives the two cutting discs 10 to carry out meshing movement, the rotation speed of the cutting disc 10 is the same, the front end of the upper part of the outer frame 1 of the extruder is fixedly connected with a sliding rail 15, the sliding rail 15 supports and limits the position of a supporting seat 16, the supporting seat 16 is movably sleeved with the supporting seat 16 outside the sliding rail 15, the position of the rear limiting plate 18 is regulated by the supporting seat 16, a motor gear 21 is fixedly connected with a motor 20, the front end of the motor 20 is provided with the motor gear 21, the motor gear 21 is movably sleeved with the inner side of the supporting seat 16, the position of the telescopic adjusting rod 17 is regulated, the telescopic adjusting rod 17 drives the motor gear 21 to be meshed with a gear arranged outside the layering gear 22, a rear limiting plate 18 is arranged outside the telescopic adjusting rod 17, the rear limiting plate 18 is clamped and connected with the height limiting plate 19, the position of the rear limiting plate 18 is regulated by the height limiting plate 19, the front end of the telescopic adjusting rod 17 is fixedly connected with the motor 20, the front end of the motor gear 20 is provided with the motor gear 21, the motor gear 21 is rotated, the motor gear 21 is meshed with the layering gear 22, the front end of the outer frame 1 is meshed with the layering gear 22, and the diameter of the first gear 23 is regulated when the front end of the outer frame 1 is meshed with the layering gear 22.

Referring to fig. 3 and 5, the first screw blade 7 and the second screw blade 8 are respectively installed at the outer parts of the first screw blade 5 and the second screw blade 6, the screw limiting screw 9 is installed at the middle part of the front end of the modified material front filling pipe 2, the first screw blade 7 and the second screw blade 8 are movably sleeved at the outer parts of the first screw blade 7 and the second screw blade 8 in a crossing manner, the screw spacing of the first screw blade 7 is smaller than the screw spacing of the second screw blade 8, the screw limiting screw 9 penetrates through the modified material front filling pipe 2 and is limited at the inner parts of the first screw blade 5 and the second screw blade 6, the first screw blade 7 and the second screw blade 8 drive the modified material to be conveyed to the other side sequentially, the first screw blade 7 and the second screw blade 8 are respectively movably sleeved at the two sides of the inner part of the outer frame 1 of the extruder through the first screw blade 5 and the second screw blade 6, the screw limiting screw 9 penetrates through the modified material front filling pipe 2 and is limited at the inner parts of the first screw blade 5 and the second screw blade 6, the positions of the first screw blade 5 and the second screw blade 6 can be spliced and limited, meanwhile, the first screw blade 7 and the second screw blade 8 are respectively installed at the outer parts of the first screw blade 5 and the second screw blade 6, after the modified material moves to the inner part of the outer frame 1, the first screw blade 7 and the second screw blade 8 drive the modified material to the other side to be conveyed to the other side, and the modified material is stacked to the outer side and the second screw blade 7 and the different from the outer side and can be quickly stacked.

Referring to fig. 3 and 4, a groove is formed in the lower portion of the front modified material filling pipe 2, the outer side of the modified material filling groove 3 is in a circular arc shape, a discharge hole is formed in the front end of the front modified material filling pipe 2, a heating device is mounted in the outer frame 1 of the extruder, the groove is formed in the inner side of the lower portion of the front modified material filling pipe 2, the front modified material filling pipe 2 is mounted at the front end of the outer frame 1 of the extruder, after the first screw 5 and the second screw 6 drive impurities to be conveyed to the front end, the modified material can be pushed into the inner portion of the modified material filling groove 3 through the first screw 5 and the second screw 6, and the pushed modified material is concentrated and accumulated through the modified material filling groove 3 and pushed out outwards through the discharge hole formed in the outer side of the front modified material filling pipe 2, and meanwhile the pushed modified material is extruded and is in a long strip shape.

Referring to fig. 2, both sides of the dividing baffle 12 are in a twenty-five-degree inclined baffle shape, the lower part of the stirring fan blade 13 is clung to the upper part of the dividing baffle 12, a motor is mounted on the outer side of the upper part of the stirring fan blade 13, the motor drives the stirring fan blade 13 to rotate by starting the motor mounted on the upper part of the stirring fan blade 13, and after the modified material is conveyed into the material collecting box 11, the stirring fan blade 13 drives the modified material to be mixed and stirred, meanwhile, both sides of the dividing baffle 12 are in an inclined shape, after the modified material passes through the outer side of the dividing baffle 12, the dividing baffle 12 drives the modified material to uniformly move to both sides, and the material conveying of the modified material is increased until the uniformity is increased.

Referring to fig. 1 and 3, two cutting disks 10 are installed at the outer side of the modified material front filling pipe 2, auxiliary gears 14 are respectively engaged with the two cutting disks 10, a cutting knife is installed at the outer side of the middle part of the cutting disks 10, the cutting knife is installed at the outer side of the modified material front filling pipe 2 and is provided with a discharging hole, the front end of the modified material front filling pipe 2 is installed through the cutting disks 10, cutting blades are installed at the inner side of the cutting disks 10, when the modified material is pushed out outwards through the discharging hole, and in the rotating process of the cutting disks 10, the cutting knife sequentially performs cutting treatment on the pushed-out modified material, and the middle parts of two sides of the two cutting disks 10 are respectively engaged with the auxiliary gears 14, in the rotating process of the auxiliary gears 14, the auxiliary gears 14 can drive the two cutting disks 10 to keep the same state, and uniformity is increased when the cutting disks 10 cut the modified material.

Referring to fig. 1 and 4, the rear limiting plate 18 is movably sleeved outside the height limiting baffle 19, a nut is mounted outside the rear limiting plate 18, the outer sides of the layered gears 22 are mutually overlapped and placed by multiple layers of gears with different sizes, the motor gears 21 are sequentially meshed and connected with the gears mounted on the outer sides of the layered gears 22, the first gears 23 are meshed and connected with the auxiliary gears 14, the position of the supporting seat 16 on the outer sides of the sliding rails 15 is adjusted, the telescopic adjusting rod 17 is driven to be arranged inside the supporting seat 16, the rear limiting plate 18 is driven to be clamped outside the height limiting baffle 19, the motor gears 21 can be sequentially meshed and connected with the different layers on the outer sides of the layered gears 22, the motor 20 is started, the motor gears 21 and the layered gears 22 are driven to perform meshing motion, the diameters of the outer gears of the layered gears 22 are different, the rotation speeds of the motor gears 21 are the same, the rotation speeds of the first gears 23 can be adjusted, the first gears 23 and the auxiliary gears 14 are meshed and moved mutually, after the position of the adjusting motor 20 is adjusted, the rotation speeds of the first gears 23 can be adjusted, after the first gears 23 are rotated and adjusted, the rotation speeds of the first gears 23 can be adjusted, the cutting speed 10 can be adjusted, and the cutting speed of a cutting disc 10 can be adjusted, namely the cutting speed of a material can be changed, and the cutting speed is different from the cutting disc 10 is different from the length, and the cutting speed is adjusted, and the length of the material can be cut.

Working principle: when in use, the modified material is placed in the material collecting box 11, the motor arranged at the upper part of the stirring fan blade 13 is started, the motor drives the stirring fan blade 13 to rotate, the stirring fan blade 13 drives the modified material to be mixed and stirred, the stirred modified material is diffused to two sides through the flow dividing baffle 12 and is kept uniform when conveyed to two sides in the outer frame 1 of the extruder, the motor arranged at the outer sides of the first screw 5 and the second screw 6 is started, the first screw 5 and the second screw 6 are rotated, the modified material is simultaneously and alternately stirred through the first screw 5 and the second screw 6, the modified material is driven to be conveyed to the other side in the outer frame 1 of the extruder, the modified material is piled up and extruded in the outer frame 1 of the extruder, the modified material is simultaneously conveyed to the inner part of the filling pipe 2 for being filled with the modified material, the inner part of the filling groove 3 is opened, simultaneously, the extruded modified material is output outwards through the modified material front filling pipe 2, the modified material is formed into a long strip shape, the position of the supporting seat 16 in the sliding rail 15 and the telescopic adjusting rod 17 in the supporting seat 16 are adjusted, the height of the rear limiting plate 18 at different layers is limited in the baffle 19, the motor gear 21 can be meshed with the outside of the layering gear 22 respectively for movement, the rotating speed of the first gear 23 can be adjusted, the rotating speed of the cutting disc 10 is adjusted through the association relation of the auxiliary gear 14, in the rotating process of the cutting disc 10, the cutting disc 10 has the effect of cutting the long strip-shaped modified material pushed out by the modified material front filling pipe 2 outwards, and the rotating speed of the cutting disc 10 is different, the function of adjusting the cutting of the modified material into particles with different lengths.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a twin-screw extruder for modified material granulation, includes outer frame (1) of extruder, filling tube (2) before the front end fixedly connected with modified material of outer frame (1) of extruder, modified material filling tank (3) have been seted up to the inboard of filling tube (2) before the modified material, backplate (4) have been cup jointed in the activity of the rear end of outer frame (1) of extruder, screw rod one (5) and screw rod two (6) are installed respectively to the inboard of backplate (4), its characterized in that: the outside activity of filling tube (2) front end before the modified material has cup jointed cutting disc (10), the upper portion fixedly connected with material collecting box (11) of outer frame (1) rear end of extruder, the inboard fixedly connected with reposition of redundant personnel baffle (12) of material collecting box (11) lower part, the mid-mounting of material collecting box (11) has stirring vane (13), auxiliary gear (14) have been cup jointed in the middle part activity of filling tube (2) front end before the modified material, the front end fixedly connected with slide rail (15) on outer frame (1) upper portion of extruder, the inside activity of slide rail (15) has cup jointed supporting seat (16), the inboard activity of supporting seat (16) has cup jointed telescopic adjustment pole (17), back limiting plate (18) are installed in the outside of telescopic adjustment pole (17), the outside fixedly connected with height limiting baffle (19) of telescopic adjustment pole (17), the front end fixedly connected with motor (20) of telescopic adjustment pole (17), motor gear (21) are installed to the front end of motor (20), the front end of outer frame (1) has a layering gear (22) to be installed in the front end, gear (22) of outer frame (22).

2. A twin screw extruder for pelletizing a modified material according to claim 1, characterized in that: the screw rod is characterized in that a first spiral blade (7) and a second spiral blade (8) are respectively arranged outside the first screw rod (5) and the second screw rod (6), a screw rod limiting screw (9) is arranged in the middle of the front end of the modified material front filling pipe (2), the first spiral blade (7) and the second spiral blade (8) are movably sleeved in a mutually crossed mode, the spiral distance of the first spiral blade (7) is smaller than that of the second spiral blade (8), and the screw rod limiting screw (9) penetrates through the modified material front filling pipe (2) and is limited in the screw rod (5) and the second screw rod (6) in a threaded mode.

3. A twin screw extruder for pelletizing a modified material according to claim 1, characterized in that: the inside of filling tube (2) lower part before the modified material is seted up flutedly, the outside of modified material filling groove (3) is convex, the discharge opening has been seted up to the inside of filling tube (2) front end before the modified material, the internally mounted of extruder outer frame (1) has heating device.

4. A twin screw extruder for pelletizing a modified material according to claim 1, characterized in that: the two sides of the flow dividing baffle plate (12) are in a twenty-five-degree inclined baffle plate shape, the lower parts of the stirring fan blades (13) are clung to the upper parts of the flow dividing baffle plate (12), and a motor is arranged on the outer side of the upper parts of the stirring fan blades (13).

5. A twin screw extruder for pelletizing a modified material according to claim 1, characterized in that: two cutting disks (10) are installed in the outside of filling tube (2) before the modified material, auxiliary gear (14) respectively with two cutting disks (10) intermeshing are connected, the cutting knife is installed in the outside at cutting disk (10) middle part, the outside of discharge opening is seted up in the outside of filling tube (2) before the modified material in the installation of cutting knife.

6. A twin screw extruder for pelletizing a modified material according to claim 1, characterized in that: the rear limiting plate (18) can be movably sleeved outside the height limiting baffle (19), a nut is arranged outside the rear limiting plate (18), multiple layers of gears with different sizes are mutually overlapped and placed on the outer side of the layered gear (22), the motor gear (21) is sequentially meshed with the gears arranged on the outer side of the layered gear (22), and the first gear (23) is meshed with the auxiliary gear (14).