Anti-blocking double-screw extruder

Abstract

The anti-blocking double-screw extruder comprises an equipment box, a workbench is arranged on the top face of the equipment box, a double-screw extrusion assembly is fixedly installed on the upper surface of the workbench through a supporting frame, and an output port of the double-screw extrusion assembly is fixedly connected with a discharging assembly; a discharging assembly corresponding to an output port of the double-screw extrusion assembly is further installed in the discharging assembly. A feeding hopper is connected to an input port of the double-screw extrusion assembly, a dredging assembly is further fixedly connected to the upper surface of the workbench, and the dredging assembly is connected to the interior of the feeding hopper to dredge materials in the feeding hopper; an operation panel is fixedly connected to the middle of the upper surface of the workbench. Through cooperation of the feeding hopper, the double-screw extrusion assembly, the dredging assembly, the discharging assembly and the discharging assembly, smooth extrusion work of materials can be conveniently completed, it is guaranteed that the blocking phenomenon cannot occur, the conveying efficiency is high, and the work reliability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of screw extrusion devices, in particular to an anti-blocking twin-screw extruder. Background Art

[0002] A twin-screw extruder is a device widely used in the plastics processing industry. It was developed based on a single-screw extruder. A twin-screw extruder is a plastics machine that generates pressure and shear force by rotating two parallel or conical screws. Its working principle is to melt and mix solid materials through the two rotating screws of a twin-screw extruder, eventually forming continuous plastic films, tubes, profiles and other products. During the extrusion process, the screw rotates to bring the material into the barrel and heat or cool it according to the characteristics of the material to make it melt or solidify. After mixing and shearing between the screws, the material forms a uniform mixture and is finally extruded to the outlet.

[0003] When the twin-screw extruder in the prior art is in use, the barrel sections are interconnected, and heat conduction occurs between adjacent barrels, resulting in uneven temperature distribution. Since the size of the discharge port is smaller than the material cavity, the material flow is not smooth. Due to the uneven temperature distribution and the characteristics of the material, the material accumulates in the cavity, and the lower temperature of the cavity inner wall easily causes the material to solidify. Therefore, there is a need for a blockage-resistant twin-screw extruder. Utility Model Content

[0004] In response to the shortcomings of the above-mentioned existing production technology, the applicant provides an anti-clogging twin-screw extruder, which effectively solves the problems in the prior art that when the twin-screw extruder is in use, the barrel sections are connected to each other, and heat conduction occurs between adjacent barrels, resulting in uneven temperature distribution. Since the size of the discharge port is smaller than the material cavity, the material flow is not smooth. Due to the uneven temperature distribution and material characteristics, the material accumulates in the material cavity, and the lower temperature of the inner wall of the material cavity easily causes the material to solidify. The problem is greatly improved in working reliability and extended in service life.

[0005] The technical solutions adopted in this utility model are as follows:

[0006] A blockage-resistant twin-screw extruder comprises an equipment box, a workbench is provided on the top surface of the equipment box, a twin-screw extrusion assembly is fixedly mounted on the upper surface of the workbench via a support frame, an output port of the twin-screw extrusion assembly is fixedly connected to a blanking assembly, and a discharge assembly corresponding to the output port of the twin-screw extrusion assembly is further mounted inside the blanking assembly; a feed hopper is connected to the input port of the twin-screw extrusion assembly, a dredging assembly is further fixedly connected to the upper surface of the workbench, the dredging assembly is connected to the inside of the feed hopper, and dredges the material inside the feed hopper; an operation panel is fixedly mounted in the middle of the upper surface of the workbench;

[0007] The structure of the discharge assembly is as follows: it includes a discharge box fixed to the workbench, a fan fixed on the top of the discharge box, a first motor fixed on the outside of the discharge box, and a cutting blade installed on the output shaft of the first motor through a coupling, and the cutting blade corresponds to the output port of the discharge assembly;

[0008] The structure of the discharge assembly is as follows: it includes a material chamber fixed to the output port of the twin-screw extruder assembly, the material chamber adopts a split structure, a rotating drum is arranged in the middle of the material chamber, the outer end of the material chamber is connected to the discharge port, the outer surface of the material chamber is fixed with an electric motor, the output shaft of the motor is installed with a first gear, the outer circumferential surface of the rotating drum is provided with a second gear, the second gear is engaged with the first gear, and the inner wall surface of the rotating drum is provided with a scraper.

[0009] As a further improvement of the above technical solution:

[0010] The blanking box is a hollow frame structure.

[0011] A square hole is provided at the bottom of the blanking box, and materials are dropped from the square hole.

[0012] The size of the first gear is smaller than that of the second gear.

[0013] There are four scrapers, which are arranged in the drum at equal distances.

[0014] The cross-section of a single scraper is triangular.

[0015] The structure of the dredging component is as follows: it includes a fixed frame locked with the workbench, a hydraulic rod is connected to the fixed frame, the top of the hydraulic rod is fixedly connected to a movable frame, a second motor is fixed to the top of the movable frame, the output shaft of the second motor is connected to a rotating rod, a material removing rod and a spiral blade are fixed to the outer wall of the rotating rod, and the rotating rod, the material removing rod and the spiral blade are located inside the feed hopper.

[0016] There are multiple material-moving rods on the rotating rod, and the multiple material-moving rods are arranged on the outer wall of the rotating rod at equal distances.

[0017] The beneficial effects of the utility model are as follows:

[0018] The utility model has a compact and reasonable structure and is easy to operate. Through the mutual cooperation between the feed hopper, the twin-screw extruder assembly, the dredging assembly, the discharging assembly and the blanking assembly, the smooth extrusion of the material can be conveniently completed to ensure that no blockage occurs, the conveying efficiency is high, and the working reliability is good.

[0019] The utility model can melt the material and transport it into the material cavity through the twin-screw extruder assembly, and can drive the first gear to rotate by starting the motor, so that the first gear can drive the second gear to rotate, and the second gear can drive the rotating drum to rotate, and the internal scraper driven by the rotating drum can scrape and extrude the material on the inner wall of the material cavity, and can reduce the blockage caused by the solidification of the inner wall of the material cavity.

[0020] The utility model can heat the material by starting the twin-screw extruder assembly and then extrude it into shape from the discharge port. In addition, when feeding the material, the second motor can drive the rotating rod to rotate, so that the rotating rod can drive the material-prying rod to mix and disperse the material, and the rotating rod drives the spiral blade to dredge the material in the feed hopper. In addition, by starting the hydraulic rod, the entire dredging assembly can be driven to move downward or upward, thereby improving the fluidity of the material, reducing the accumulation in the feed hopper and the inability to smoothly enter the extruder, and improving the fluidity and dispersion of the material to a certain extent.

[0021] The utility model starts the fan on the discharge box, which can enable the fan to perform air cooling on the material at the discharge port, and when cutting is required, the first motor can be started to drive the cutting blade for cutting, thereby reducing the situation where the material is not cooled enough and sticks to the cutting blade, thereby improving the practicality of the device, reducing damage to the material after cutting, and meeting people's daily use needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the present utility model.

[0023] Figure 2 This is a structural schematic diagram of the utility model from another perspective (main blanking components and dredging components).

[0024] Figure 3 It is a structural schematic diagram of the dredging component of the utility model.

[0025] Figure 4 This is a structural diagram of the discharge assembly of the utility model.

[0026] Figure 5 This is a schematic diagram of the structure of the discharge assembly of the present invention (the discharge port is omitted).

[0027] Including: 1. Equipment box; 2. Twin-screw extruder assembly; 3. Blanking assembly;

[0028] 301, blanking box; 302, fan; 303, first motor; 304, cutting blade;

[0029] 4. Operation panel; 5. Feed hopper; 6. Dredging component;

[0030] 601, fixed frame; 602, hydraulic rod; 603, movable frame; 604, second motor; 605, rotating rod; 606, material-moving rod; 607, spiral blade;

[0031] 7. Discharging assembly;

[0032] 701, material chamber; 702, material outlet; 703, motor; 704, first gear; 705, second gear; 706, rotating drum; 707, scraper;

[0033] 8. Workbench. DETAILED DESCRIPTION

[0034] The specific implementation of the present utility model will be described below with reference to the accompanying drawings.

[0035] like Figure 1-Figure 5 As shown, the anti-clogging recombinant rice twin-screw extruder of this embodiment includes an equipment box 1, a workbench 8 is provided on the top surface of the equipment box 1, a twin-screw extrusion assembly 2 is fixedly installed on the upper surface of the workbench 8 through a support frame, the output port of the twin-screw extrusion assembly 2 is fixedly connected with a blanking assembly 3, and a discharge assembly 7 corresponding to the output port of the twin-screw extrusion assembly 2 is further installed inside the blanking assembly 3; a feed hopper 5 is connected to the input port of the twin-screw extrusion assembly 2, and a dredging assembly 6 is further fixedly connected on the upper surface of the workbench 8, and the dredging assembly 6 is connected to the inside of the feed hopper 5 to dredge the material inside the feed hopper 5; an operation panel 4 is fixedly connected to the middle position of the upper surface of the workbench 8;

[0036] The structure of the blanking assembly 3 is as follows: it includes a blanking box 301 fixed to the workbench 8, a fan 302 is fixed to the top of the blanking box 301, a first motor 303 is fixed to the outside of the blanking box 301, and a cutting blade 304 is installed on the output shaft of the first motor 303 through a coupling. The cutting blade 304 corresponds to the output port of the discharge assembly 7;

[0037] The structure of the discharge component 7 is as follows: it includes a material chamber 701 fixed to the output port of the twin-screw extruder component 2, the material chamber 701 adopts a split structure, a rotating drum 706 is provided in the middle of the material chamber 701, the outer end of the material chamber 701 is connected to the discharge port 702, the outer surface of the material chamber 701 is fixed with a motor 703, the output shaft of the motor 703 is installed with a first gear 704, the outer circumferential surface of the rotating drum 706 is provided with a second gear 705, the second gear 705 is engaged with the first gear 704, and the inner wall surface of the rotating drum 706 is provided with a scraper 707.

[0038] The blanking box 301 is a hollow frame structure.

[0039] The bottom of the blanking box 301 is provided with a square hole, through which materials are dropped.

[0040] The size of the first gear 704 is smaller than that of the second gear 705 .

[0041] There are four scrapers 707 , which are arranged at equal distances inside the drum 706 .

[0042] The cross-section of a single scraper 707 is triangular.

[0043] The structure of the dredging component 6 is: it includes a fixed frame 601 locked with the workbench 8, a hydraulic rod 602 is connected to the fixed frame 601, the top of the hydraulic rod 602 is fixedly connected to a movable frame 603, the top of the movable frame 603 is fixed with a second motor 604, the output shaft of the second motor 604 is connected to a rotating rod 605, the outer wall of the rotating rod 605 is fixed with a material moving rod 606 and a spiral blade 607, and the rotating rod 605, the material moving rod 606 and the spiral blade 607 are located inside the feed hopper 5.

[0044] There are multiple material-moving rods 606 on the rotating rod 605 , and the multiple material-moving rods 606 are arranged at equal distances on the outer wall of the rotating rod 605 .

[0045] The specific structure and function of the anti-clogging twin-screw extruder described in the utility model are as follows:

[0046] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, it mainly includes an equipment box 1, the top of the equipment box 1 is fixedly connected to a twin-screw extrusion assembly 2, one end of the twin-screw extrusion assembly 2 is fixedly connected to a feeding assembly 3, the top of the equipment box 1 is fixedly connected to an operation panel 4, the top of the twin-screw extrusion assembly 2 is fixedly connected to a feed hopper 5, one end of the twin-screw extrusion assembly 2 is detachably connected to a discharge assembly 7, the discharge assembly 7 includes a material chamber 701, one end of the material chamber 701 is fixedly connected to a discharge port 702, one side of the material chamber 701 is fixedly connected to a motor 703, and the output shaft of the motor 703 is fixedly connected to a first gear 704 through a coupling, the outer wall of the first gear 704 is meshed with a second gear 705, and the motor 703 is connected to the second gear 705 through the first gear 704. 5 constitutes a rotating structure, and the size of the first gear 704 is smaller than that of the second gear 705, which strengthens the connection effect between the motor 703 and the first gear 704, allowing the motor 703 to drive the second gear 705 to rotate by driving the first gear 704. The interior of the second gear 705 is fixedly connected to the rotating drum 706, and the interior of the rotating drum 706 is fixedly connected to the scraper 707. There are four scrapers 707 in the rotating drum 706, and the four scrapers 707 are evenly spaced inside the rotating drum 706, which strengthens the connection effect between the rotating drum 706 and the scraper 707. The rotating drum 706 can drive the scraper 707 to scrape the material on the inner wall of the rotating drum 706, thereby improving the anti-clogging effect of the discharge port 702.

[0047] The top of the equipment box 1 is fixedly connected with a dredging component 6, which includes a fixed frame 601, a hydraulic rod 602 fixedly connected to one side of the fixed frame 601, and a mobile frame 603 fixedly connected to the top of the hydraulic rod 602. The fixed frame 601 forms a telescopic structure with the mobile frame 603 through the hydraulic rod 602, and the hydraulic rod 602 is set between the fixed frame 601 and the mobile frame 603, which strengthens the connection effect between the fixed frame 601 and the hydraulic rod 602, so that the hydraulic rod 602 can rely on the support of the fixed frame 601 to drive the mobile frame 603 to move. The top of the second motor 604 is fixedly connected, and the output shaft of the second motor 604 is fixedly connected to the rotating rod 605 through a coupling. The outer wall of the rotating rod 605 is fixedly connected to the material-moving rod 606. The movable frame 603 forms a rotating structure with the rotating rod 605 through the second motor 604, and the number of the material-moving rods 606 on the rotating rod 605 is multiple, and the multiple material-moving rods 606 are evenly spaced and arranged on the outer wall of the rotating rod 605, which strengthens the connection effect between the movable frame 603 and the second motor 604, so that the movable frame 603 can rely on the second motor 604 to drive the rotating rod 605 to rotate, so that the rotating rod 605 can drive multiple material-moving rods 606 to move the material. The bottom of the rotating rod 605 is fixedly connected to a spiral blade 607. The second motor 604 forms a rotating structure with the rotating rod 605 and the spiral blade 607. The rotating rod 605 is arranged between the second motor 604 and the spiral blade 607 to strengthen the connection effect between the second motor 604 and the rotating rod 605. The second motor 604 can rely on the rotating rod 605 to drive the spiral blade 607 to dredge the material, which can improve the anti-blocking ability of the feed hopper 5. By starting the twin-screw extruder assembly 2, the material can be fed into the feed hopper 5. After heating, extrusion molding is carried out through the discharge port 702. In addition, when loading the material, the second motor 604 can be started to drive the rotating rod 605 to rotate, and the rotating rod 605 can drive the material-moving rod 606 to mix and disperse the material, and the rotating rod 605 drives the spiral blade 607 to dredge the material in the feed hopper 5. In addition, by starting the hydraulic rod 602, the entire dredging component 6 can be driven to move downward or upward, and the spiral blade 607 can be moved in the feed hopper 5 to dredge the material, thereby improving the feeding effect.

[0048] The blanking assembly 3 includes a blanking box 301, and a fan 302 is fixedly connected to the top of the blanking box 301. The blanking box 301 and the fan 302 constitute a fixed structure, and the fan 302 is arranged just above the discharge port 702, which strengthens the connection effect between the blanking box 301 and the fan 302, so that the fan 302 can perform air cooling on the material discharged from the discharge port 702 below, and relies on the twin-screw extruder assembly 2 to cool itself, which can further improve the cooling effect of the material, and can facilitate people to process the material and reduce the adhesion of the material. A first motor 303 is fixedly connected to one side of the blanking box 301, and the output shaft of the first motor 303 is fixedly connected to the cutting blade 304 through a coupling. 01 A rotating structure is formed by the first motor 303 and the cutting blade 304, and the number of the cutting blades 304 is two, and the two cutting blades 304 are symmetrically arranged with the mid-vertical line of the first motor 303 as the symmetry axis, thereby strengthening the connection effect between the first motor 303 and the cutting blade 304, so that the first motor 303 can drive the two cutting blades 304 to cut the extruded material. In addition, by starting the fan 302 on the discharge box 301, the fan 302 can perform air cooling on the material at the discharge port 702, and when cutting is required, the first motor 303 can be started to drive the cutting blade 304 to cut, thereby reducing the situation where the material is not cooled enough and sticks to the cutting blade 304.

[0049] The working principle of this utility model is as follows:

[0050] The feed hopper 5 can be used to input materials, and the twin-screw extruder assembly 2 can be started to heat the materials and then extrude them from the discharge port 702. In addition, when feeding, the second motor 604 can be started to drive the rotating rod 605 to rotate, and the rotating rod 605 can drive the material-prying rod 606 to mix and break up the materials, and the rotating rod 605 drives the spiral blade 607 to dredge the materials in the feed hopper 5. In addition, by starting the hydraulic rod 602, the entire dredging assembly 6 can be driven to move downward or upward, so that the spiral blade 607 can move in the feed hopper 5 to dredge the materials, thereby improving the material discharge effect. In addition, the twin-screw extruder assembly 2 can melt the materials and transport them to the material cavity 70 1, and by starting the motor 703, the first gear 704 can be driven to rotate, so that the first gear 704 can drive the second gear 705 to rotate, so that the second gear 705 can drive the rotating drum 706 to rotate, and the internal scraper 707 driven by the rotating drum 706 can be scraped and mixed with the material on the inner wall of the material cavity 701 for extrusion, and the blockage caused by solidification of the inner wall of the material cavity 701 can be reduced. In addition, by starting the fan 302 on the discharge box 301, the fan 302 can be used to cool the material at the discharge port 702, and when cutting is required, the cutting blade 304 can be driven to cut by starting the first motor 303, thereby reducing the situation where the material is not cooled enough and sticks to the cutting blade 304, thereby improving the practicality of the device.

[0051] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the scope of protection of the utility model.

Claims

1. An anti-clogging twin-screw extruder, characterized in that: The invention comprises an equipment box (1), wherein a workbench (8) is provided on the top surface of the equipment box (1), a twin-screw extrusion assembly (2) is fixedly installed on the upper surface of the workbench (8) through a support frame, the output port of the twin-screw extrusion assembly (2) is fixedly connected to a blanking assembly (3), and a discharge assembly (7) corresponding to the output port of the twin-screw extrusion assembly (2) is also installed inside the blanking assembly (3); the input port of the twin-screw extrusion assembly (2) is connected to a feed hopper (5), and a dredging assembly (6) is also fixedly connected on the upper surface of the workbench (8), and the dredging assembly (6) is connected to the inside of the feed hopper (5) to dredge the material inside the feed hopper (5); an operation panel (4) is fixedly connected to the middle position of the upper surface of the workbench (8); The structure of the blanking assembly (3) is as follows: it includes a blanking box (301) fixed to the workbench (8), a fan (302) fixed on the top of the blanking box (301), a first motor (303) fixed on the outside of the blanking box (301), an output shaft of the first motor (303) is equipped with a cutting blade (304) via a coupling, and the cutting blade (304) corresponds to the output port of the discharge assembly (7); The structure of the discharge assembly (7) is as follows: it includes a material chamber (701) fixed to the output port of the twin-screw extruder assembly (2), the material chamber (701) adopts a split structure, a rotating drum (706) is provided in the middle of the material chamber (701), the outer end of the material chamber (701) is connected to the discharge port (702), a motor (703) is fixed to the outer surface of the material chamber (701), the output shaft of the motor (703) is installed with a first gear (704), the outer circumferential surface of the rotating drum (706) is provided with a second gear (705), the second gear (705) is meshed with the first gear (704), and the inner wall surface of the rotating drum (706) is provided with a scraper (707).

2. The anti-clogging twin-screw extruder according to claim 1, wherein: The blanking box (301) is a hollow frame structure.

3. The anti-clogging twin-screw extruder according to claim 1, wherein: The bottom of the blanking box (301) is provided with a square hole, through which materials are dropped.

4. The anti-clogging twin-screw extruder according to claim 1, wherein: The size of the first gear (704) is smaller than the size of the second gear (705).

5. The anti-clogging twin-screw extruder according to claim 1, characterized in that: There are four scrapers (707), which are arranged at equal distances inside the rotating drum (706).

6. The anti-clogging twin-screw extruder according to claim 1, characterized in that: The cross-section of a single scraper (707) is triangular.

7. The anti-clogging twin-screw extruder according to claim 1, wherein: The structure of the dredging component (6) is as follows: it includes a fixed frame (601) locked with the workbench (8), a hydraulic rod (602) is connected to the fixed frame (601), the top of the hydraulic rod (602) is fixedly connected to a movable frame (603), the top of the movable frame (603) is fixed with a second motor (604), the output shaft of the second motor (604) is connected to a rotating rod (605), the outer wall of the rotating rod (605) is fixed with a material-moving rod (606) and a spiral blade (607), and the rotating rod (605), the material-moving rod (606) and the spiral blade (607) are located inside the feed hopper (5).

8. The anti-clogging twin-screw extruder according to claim 7, characterized in that: There are multiple material-moving rods (606) on the rotating rod (605), and the multiple material-moving rods (606) are arranged at equal distances on the outer wall of the rotating rod (605).

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