CN219445735U - Granulating device of extruder - Google Patents

Abstract

The utility model discloses a granulating device of an extruder, which comprises: the device comprises a shell, a first air cylinder, a first sliding bar, a rolling wheel, a scraping plate, a grain cutter and a first motor; the first cylinder drives the first slide bar to move up and down, and the scraper can scrape particles adhered to the inner wall of the shell; when the first sliding bar moves up and down, the rolling wheel rolls on the inner wall of the shell, so that particles are difficult to adhere to the rolling wheel; the cut particles roll down along the first flat plate, can be cooled more quickly in the rolling process, and can roll into a cooling device by itself; wind energy generated by the operation of the fan can assist particles to roll along the first flat plate, so that the particles can be cooled to a certain degree, air circulation inside the shell can be accelerated, and the temperature inside the shell is reduced to a certain degree.

Description

Granulating device of extruder

Technical Field

The utility model relates to the technical field of extruders, in particular to a granulating device of an extruder.

Background

The extruder can divide the machine head into a right-angle machine head, an oblique-angle machine head and the like according to the material flow direction of the machine head and the included angle of the central line of the screw rod. The screw extruder relies on pressure and shearing force generated by screw rotation, so that materials can be fully plasticized and uniformly mixed, and the materials are molded through a die.

At present, a plurality of plastic products are extruded by an extruder and then are cut by a granulator, and the granulator can be divided into a hot cutting part and a cooling part according to different working modes and functions of the granulator; the dry-cut pellets in hot cutting are produced by cutting the extruded strands into pellets of uniform length by rotating blades immediately after extrusion in an extruder. In the dry cutting process of the existing granulator, the extruded strip-shaped material is just molded after passing through high temperature, so that the condition that cut particles are stuck on the inner wall of the granulator can occur, the quality and the yield of products are affected, and inconvenience in cleaning the inner wall can be caused.

Disclosure of Invention

The utility model provides a grain cutting device of extruder can solve the problem that current grain cutting machine glues at the grain cutting machine inner wall at the cut good granule that cuts that dry cutting in-process can appear.

The utility model provides a grain cutting device of an extruder, which comprises a shell, a first cylinder, a first sliding bar, a rolling wheel, a scraping plate, a grain cutting knife and a first motor; the shell is box-shaped with an opening at the lower end, one side surface of the shell is provided with a feed inlet, and the feed inlet is aligned with a discharge hole of the extruder body; the grain cutting knife comprises a knife and a knife seat; the tool apron is rotationally connected to the shell, is positioned in the shell, and the rotating shaft is perpendicular to the inner wall where the feeding hole is positioned; the cutter is fixedly arranged on the cutter holder; the first motor is arranged on the shell and used for driving the grain cutter to rotate; the four first sliding strips respectively slide up and down along the four vertical inner walls of the shell, and the four first sliding strips are fixedly connected together to form a frame shape; the first cylinder is arranged on the shell and used for driving the first sliding bar to slide; each first sliding strip is provided with a first through groove along the direction vertical to the inner wall; the rolling wheels are respectively connected to the four first through grooves in a rotating mode, the rolling wheels exceed the inner side and the outer side of the first sliding strip, and the rolling wheels are connected to the inner wall of the shell in a rotating mode; eight scrapers are respectively fixedly arranged at the upper end and the lower end of each first sliding strip, one end of each scraper is fixedly connected with the uppermost end of the side face of each first sliding strip, and the other end of each scraper is connected with the inner wall of the shell in a sliding manner.

Further, the frame of the first motor is fixedly arranged on the top surface of the shell, a first belt wheel is fixedly arranged on the output shaft of the first motor, a second belt wheel is fixedly arranged on the tool apron, the top end of the shell is positioned at the output shaft of the first motor, a second penetrating groove in the vertical direction is formed in the position, penetrating through the second penetrating groove, of the shell, and a driving belt is connected to the first belt wheel and the second belt wheel.

Further, a first flat plate is fixedly arranged at the lower end of the shell, and the first flat plate is obliquely arranged downwards.

Further, a fan is arranged on the outer side of the shell, a third through groove is formed in the position, located at the fan, of the shell, the fan blows air to the upper portion of the first flat plate through the third through groove, and the blowing direction is downward along the first flat plate.

Further, a first vertical plate extending upwards is fixedly arranged on each of two sides of the first flat plate.

To sum up, in the present application, a pelleting device of extruder, compared with prior art, has following beneficial effect:

(1) The first cylinder drives the first slide bar to move up and down, and the scraper can scrape particles adhered to the inner wall of the shell; when the first sliding bar moves up and down, the rolling wheel rolls on the inner wall of the shell, so that particles are difficult to adhere to the rolling wheel;

(2) The first motor is arranged at the top end of the shell, can be far away from the high temperature in the shell, and reduces the influence of the high temperature on the first motor;

(3) The cut particles roll down along the first flat plate, can be cooled more quickly in the rolling process, and can roll into a cooling device by itself;

(4) Wind energy generated by the operation of the fan can assist particles to roll along the first flat plate, so that the particles can be cooled to a certain degree, air circulation inside the shell can be accelerated, and the temperature inside the shell is reduced to a certain degree.

Drawings

In order to better and clearly describe the technical solutions in the embodiments or the background of the present application, the following description will describe the drawings used in the embodiments or the background of the present application.

FIG. 1 is a front view of a pelletizing device and extruder body of an extruder;

FIG. 2 is a left side view of a pelletizing device of the extruder;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 4 is a right side view of a pelletizing device of the extruder;

fig. 5 is a cross-sectional view taken along line C-C in fig. 4.

In the figure, 1, an extruder body; 11. a discharge port; 2. a housing; 21. a feed inlet; 23. a first plate; 24. a first riser; 25. a third through groove; 26. a fan; 27. an L-shaped cylindrical rod; 4. a first slide bar; 5. a rolling wheel; 6. a scraper; 7. a dicing cutter; 71. a cutter; 72. a tool apron; 73. a second pulley; 8. a first motor; 81. a first pulley; 9. a transmission belt; 10. and (5) supporting legs.

Detailed Description

The following describes the embodiments of the present utility model further with reference to the attached drawings and examples; the following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

Referring to fig. 1, a pelletizing device of an extruder includes: extruder body 1, characterized by comprising: the device comprises a shell 2, a first cylinder, a first sliding bar 4, a rolling wheel 5, a scraping plate 6, a grain cutter 7 and a first motor 8.

Referring to fig. 3, the housing 2 is in a box shape with an opening at a lower end, a feeding port 21 is disposed on one side of the housing 2, and the feeding port 21 is aligned with the discharging port 11 of the extruder body 1, so that the strip-shaped material extruded from the discharging port 11 can enter the housing 2 through the feeding port 21.

Referring to fig. 3 and 5, the dicing blade 7 includes a blade 71 and a blade holder 72; the upper end of the inside of the shell 2 is downwards extended to form an L-shaped cylindrical rod 27, the cutter holder 72 is rotatably connected with the L-shaped cylindrical rod 27, and the rotating shaft is perpendicular to the inner wall where the feeding hole 21 is positioned; the cutter 71 is fixedly arranged on the cutter seat 72; the cutting range of the cutter 71 is circular, and the radius of the cutting range can cover the feeding hole 21, when the cutter 71 rotates to the position of the feeding hole 21, the cutting edge of the cutter 71 faces downwards. This arrangement allows the cutting force applied by the blade to the strip to be directed downwards, making it easier for the cut strip to fall directly downwards out of the housing 2.

Referring to fig. 3, in one embodiment, preferably, the housing of the first motor 8 is fixedly disposed on the top surface of the housing 2, a first belt pulley 81 is fixedly disposed on the output shaft of the first motor 8, a second belt pulley 73 is fixedly disposed on the tool apron 72, a second through groove in the vertical direction is formed at the top end of the housing 2 at the output shaft of the first motor 8, and a driving belt 9 is connected to the first belt pulley 81 and the second belt pulley 73 through the second through groove. By the arrangement, the first motor 8 can avoid the high temperature in the shell 2 as much as possible, and the influence of the high temperature on the first motor 8 is effectively reduced.

Referring to fig. 3, the four first sliding strips 4 are respectively slid up and down along the four vertical inner walls of the housing 2, and the four first sliding strips 4 are fixedly connected together to form a frame shape; the first cylinder is arranged on the shell 2 and is used for driving the first sliding strip 4 to slide. In one embodiment, two first cylinders are fixed on the top surface of the housing 2, and are respectively located at two ends of the same diagonal line of the top surface of the housing 2 in a top view direction; the top surface of the shell 2 is provided with a first through hole at each of the two first air cylinders; the telescopic rods of the two first cylinders respectively penetrate through the two first through holes to be fixedly connected with the first sliding strips 4.

Referring to fig. 3, each of the first sliding strips 4 is provided with a first through groove along a direction perpendicular to the inner wall; every first run-through inslot all has set firmly a connecting rod along being on a parallel with the direction of the 2 inner walls of shell in place, roll round 5 four respectively rotate connect in four the connecting rod, roll round 5 surpass be in the inboard and the outside of first draw runner 4, roll round 5 rotate connect in the 2 inner walls of shell. Eight scrapers 6 are respectively and fixedly arranged at the upper end and the lower end of each first sliding strip 4, one end of each scraper 6 is fixedly connected with the uppermost end of the side surface of each first sliding strip 4, the other end of each scraper 6 is slidably connected with the inner wall of the shell 2, and each scraper 6 is a triangular prism. So arranged, the scraper 6 can move up and down along the inner wall of the housing 2 under the drive of the first cylinder to clean particles adhered to the inner wall of the housing 2.

Referring to fig. 3, in one embodiment, a first plate 23 is preferably fixed to the lower end of the housing 2, and the first plate 23 is disposed obliquely downward. A fan 26 is arranged on the outer side of the shell 2, a third through groove 25 is arranged on the shell 2 at the position of the fan 26, and the fan 26 blows air to the upper side of the first flat plate 23 through the third through groove 25, and the blowing direction is downward along the first flat plate 23. So arranged, the cut pellets fall onto the first plate 23 and roll downwardly under the force of gravity and the force of the fan 26, allowing the pellets to be cooled to some extent and automatically roll into the cooling device. Further, a first vertical plate 24 extending upward is fixedly provided on each side of the first plate 23 to prevent particles from falling from each side of the first plate 23. Further, four supporting legs 10 are fixed at the lower end of the first plate 23, so as to support the first plate 23.

Claims (5)

1. A pelletizing device of an extruder, comprising: extruder body (1), characterized by comprising: the device comprises a shell (2), a first cylinder, a first sliding bar (4), a rolling wheel (5), a scraping plate (6), a grain cutter (7) and a first motor (8);

the shell (2) is in a box shape with an opening at the lower end, a feed inlet (21) is arranged on one side surface of the shell (2), and the feed inlet (21) is aligned with a discharge outlet (11) of the extruder body (1);

the grain cutting knife (7) comprises a knife (71) and a knife holder (72); the tool apron (72) is rotationally connected with the shell (2), is positioned in the shell (2) and is perpendicular to the inner wall where the feeding hole (21) is positioned; the cutter (71) is fixedly arranged on the cutter holder (72); the first motor (8) is arranged on the shell (2) and is used for driving the grain cutter (7) to rotate;

the four first sliding strips (4) slide up and down along the four vertical inner walls of the shell (2) respectively, and the four first sliding strips (4) are fixedly connected together to form a frame shape; the first cylinder is arranged on the shell (2) and used for driving the first sliding bar (4) to slide;

each first sliding strip (4) is provided with a first through groove along the direction vertical to the inner wall; the rolling wheels (5) are respectively connected to the four first through grooves in a rotating mode, the rolling wheels (5) exceed the inner side and the outer side of the first sliding strip (4), and the rolling wheels (5) are connected to the inner wall of the shell (2) in a rotating mode;

eight scrapers (6) are respectively and fixedly arranged at the upper end and the lower end of each first sliding strip (4), one end of each scraper (6) is fixedly connected with the uppermost end of the side surface of each first sliding strip (4), and the other end of each scraper is connected with the inner wall of the shell (2) in a sliding mode.

2. The granulating device of an extruder according to claim 1, wherein the base of the first motor (8) is fixedly arranged on the top surface of the housing (2), a first belt wheel (81) is fixedly arranged on the output shaft of the first motor (8), a second belt wheel (73) is fixedly arranged on the tool apron (72), a second penetrating groove in the vertical direction is formed in the top end of the housing (2) at the output shaft of the first motor (8), and a transmission belt (9) penetrates through the second penetrating groove and is connected to the first belt wheel (81) and the second belt wheel (73).

3. The granulating device of an extruder as claimed in claim 1, wherein a first plate (23) is fixedly arranged at the lower end of said housing (2), said first plate (23) being arranged obliquely downward.

4. A pelletising device for an extruder according to claim 3, characterized in that a fan (26) is arranged on the outer side of the housing (2), a third through slot (25) is arranged on the housing (2) at the fan (26), and the fan (26) blows air to the upper side of the first flat plate (23) through the third through slot (25) in a direction downward along the first flat plate (23).

5. A pelletising device for an extruder according to claim 3, characterized in that the first plate (23) is provided on each side with a first riser (24) projecting upwards.