A twin-screw granulator with a cutting structure
By setting grooves on the cutting knife of the twin-screw granulator and using the matching structure of the brush frame and torsion spring, the problem of sticking plastic particles on the cutting knife is solved, and automatic cleaning and stable granulation effect is achieved.
Patent Information
- Application Number
- CN202420416856.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-05
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-03-05
AI Technical Summary
During the cutting process of existing twin-screw granulators, plastic particles are prone to stick to the cutting knife surface, resulting in manual cleaning in the later stage, which consumes manpower and may hinder the cutting effect.
A twin-screw granulator with material cutting structure was designed, with multiple grooves on the cutting knife to reduce the area of sticking plastic particles. When the cutting knife rotates counterclockwise, open the brush plate by combining the brush frame and the torsion spring, filter the sticky particles down to keep the surface of the cutting knife smooth.
It effectively reduces the stickiness of plastic particles on the cutting knife, saves time and energy for manual cleaning, and ensures the stability of the granulation effect.
Smart Images
Figure CN222712546U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of granulators, and in particular relates to a twin-screw granulator with a cutting structure. Background Art
[0002] Twin-screw granulator is mainly used for filling, blending, modification, addition, chlorination, processing of polypropylene and super absorbent resin of rubber and plastic and engineering resin.
[0003] The discharge port of the existing twin-screw granulator often cuts the material into granules through a cutting device. However, during the cutting process of the cutting knife, the plastic particles will inevitably stick to the cutting knife surface, which requires manual cleaning later and consumes manpower. Secondly, the accumulation of these sticky particles may hinder the next cutting and granulation effect of the cutting knife. Therefore, a twin-screw granulator with a cutting structure is needed to solve the above problems. Utility Model Content
[0004] The purpose of the utility model is to provide a twin-screw granulator with a cutting structure to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a twin-screw granulator with a cutting structure, comprising a machine platform, a twin-screw granulator body is fixedly arranged on the machine platform, an extrusion port is provided on one side of the twin-screw granulator body, a driving motor is fixedly connected to the machine platform, an output shaft of the driving motor is fixedly connected to a first gear, a second gear is meshed on one side of the first gear, a rotating rod is fixedly connected to one side of the second gear, two fixed blocks are fixedly connected to the twin-screw granulator body, the rotating rod penetrates and is rotatably connected to the inside of the two fixed blocks, a cutting knife is fixedly connected to one end of the rotating rod, a plurality of grooves are provided on the cutting knife, a brush frame is fixedly connected to one side of the twin-screw granulator body, a first brush plate is fixedly connected to one side of the inner side of the brush frame, a second brush plate is rotatably connected to one side of the inner side of the brush frame, the first brush plate and the second brush plate form a V-shape, a torsion spring is provided at the rotation position of the second brush plate, a limiting block is fixedly connected to the brush frame, and the limiting block is provided at the rotation position of the second brush plate.
[0006] By setting a driving motor, the first gear will be driven to rotate under the power output of the driving motor, the first gear will drive the second gear to rotate, and the second gear will drive the cutting knife to cut and rotate through the rotating rod. The cutting knife cuts the material extruded at the extrusion port by rotating. During this period, due to the grooves on the cutting knife, the area of plastic particles sticking to the surface of the cutting knife is reduced, thereby making it difficult for the plastic particles to stick to the cutting knife. When the cutting knife cuts and rotates counterclockwise, it will pass through the limit of the first brush plate and the second brush plate in the brush frame, wherein the second brush plate will be pressed by the cutting knife through the rebound of the torsion spring and rotated to open, and filter out the particles that may be stuck on the cutting knife, thereby enabling the cutting knife to ensure a smooth surface when falling and cutting, thereby helping to save the time and effort of traditional manual cleaning of the knife surface in the later stage and ensuring a certain granulation effect. The setting of the limiting block can ensure that the second brush plate bends downward and forms a certain restricted space with the first brush plate.
[0007] As a preferred implementation, the diameter of the first gear is greater than the diameter of the second gear.
[0008] As a preferred implementation, the cutting knife is located at the extrusion outlet.
[0009] As a preferred embodiment, a feed port is connected to the twin-screw granulator body.
[0010] As a preferred embodiment, the twin-screw rotating parts on one side of the twin-screw granulator body are fixedly connected with pulleys, and a transmission belt is commonly arranged between the two pulleys.
[0011] As a preferred implementation, one side of the first gear is fixedly connected to one side of the pulley.
[0012] By fixing the first gear on one of the pulleys, when the first gear rotates under the drive of the driving motor, it will also drive a pulley to rotate synchronously. One pulley drives another pulley to rotate through a transmission belt. The rotation of the two pulleys drives the extrusion rotation of the twin screws in the twin-screw granulator body, and then the extrusion processing and cutting processing on the twin-screw granulator body are driven by a driving motor, which helps to save a certain amount of motor cost.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] The utility model provides a driving motor, which drives the first gear to rotate under the power output of the driving motor, and the first gear drives the second gear to rotate. The second gear drives the cutting knife to rotate and cut through the rotating rod. The cutting knife cuts the material extruded from the extrusion port by rotating. During this period, since the cutting knife is provided with a groove, the area of plastic particles adhering to the surface of the cutting knife is reduced, thereby making it difficult for the plastic particles to adhere to the cutting knife. When the cutting knife rotates and cuts counterclockwise, it passes through the limit of the first brush plate and the second brush plate in the brush frame, wherein the second brush plate is pressed by the cutting knife through the rebound of the torsion spring and rotates to open, and filters the particles that may be stuck on the cutting knife, thereby enabling the cutting knife to ensure a smooth surface when falling and cutting, thereby helping to save the time and effort of traditional manual cleaning of the knife surface at a later stage, and ensuring a certain granulation effect.
[0015] The utility model fixes the first gear on one of the pulleys so that when the first gear rotates under the drive of the driving motor, it will also synchronously drive a pulley to rotate. One pulley drives the other pulley to rotate through a transmission belt. The rotation of the two pulleys drives the extrusion rotation of the twin screws in the twin-screw granulator body, and then the extrusion processing and cutting processing on the twin-screw granulator body are driven by a driving motor, which helps to save a certain amount of motor cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0017] Figure 2 It is a schematic diagram of a partial three-dimensional structure of the utility model;
[0018] Figure 3 For this utility model Figure 2 A is a schematic diagram of the magnified three-dimensional structure;
[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the limiting block of the utility model;
[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the driving motor of the utility model.
[0021] In the figure: 1, machine table; 2, twin-screw granulator body; 3, extruder; 4, driving motor; 5, first gear; 6, second gear; 7, rotating rod; 8, fixing block; 9, cutting knife; 10, groove; 11, brush frame; 12, first brush plate; 13, second brush plate; 14, torsion spring; 15, limiting block; 16, feed port; 17, pulley; 18, transmission belt. DETAILED DESCRIPTION
[0022] The present invention will be further described below in conjunction with the embodiments.
[0023] The following examples are used to illustrate the present invention, but cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.
[0024] See also Figure 1-5 The utility model provides a twin-screw granulator with a cutting structure, including a machine platform 1, a twin-screw granulator body 2 is fixedly arranged on the machine platform 1, an extrusion port 3 is opened on one side of the twin-screw granulator body 2, a driving motor 4 is fixedly connected to the machine platform 1, a first gear 5 is fixedly connected to the output shaft of the driving motor 4, a second gear 6 is meshed on one side of the first gear 5, a rotating rod 7 is fixedly connected to one side of the second gear 6, two fixed blocks 8 are fixedly connected to the twin-screw granulator body 2, and the rotating rod 7 penetrates and rotates between the two fixed blocks. Inside the block 8, one end of the rotating rod 7 is fixedly connected to a cutting knife 9, and a plurality of grooves 10 are provided on the cutting knife 9. A brush frame 11 is fixedly connected to one side of the twin-screw granulator body 2. A first brush plate 12 is fixedly connected to one side of the inner side of the brush frame 11. A second brush plate 13 is rotatably connected to one side of the inner side of the brush frame 11. The first brush plate 12 and the second brush plate 13 form a V shape. A torsion spring 14 is provided at the rotation position of the second brush plate 13. A limiting block 15 is fixedly connected to the brush frame 11, and the limiting block 15 is provided at the rotation position of the second brush plate 13. By setting a driving motor 4, the first gear 5 will be driven to rotate under the power output of the driving motor 4, and the first gear 5 will drive the second gear 6 to rotate. The second gear 6 will drive the cutting knife 9 to cut and rotate through the rotating rod 7. The cutting knife 9 cuts the material extruded at the extrusion port 3 by rotating. During this period, since the cutting knife 9 is provided with a groove 10, the area of plastic particles adhering to the surface of the cutting knife 9 is reduced, thereby making it difficult for the plastic particles to adhere to the cutting knife 9. When the cutting knife 9 cuts and rotates counterclockwise, it will pass through the first brush plate 12 and the second brush plate 13 in the brush frame 11. The second brush plate 13 will be pressed by the cutting knife 9 through the rebound of the torsion spring 14 and rotated to open, and the particles that may be stuck on the cutting knife 9 will be filtered off by the way, so that the cutting knife 9 can ensure a smooth surface when falling and cutting, thereby helping to save the time and effort of traditional manual cleaning of the knife surface in the later stage, and ensuring a certain granulation effect. The setting of the limiting block 15 can ensure that the second brush plate 13 bends downward and forms a certain restricted space with the first brush plate 12.
[0025] The diameter of the first gear 5 is greater than the diameter of the second gear 6 .
[0026] The cutting blade 9 is located at the extrusion outlet 3 .
[0027] The twin-screw granulator body 2 is connected with a feed port 16 .
[0028] The twin screw rotation positions on one side of the twin screw granulator body 2 are fixedly connected with pulleys 17 , and a transmission belt 18 is provided between the two pulleys 17 .
[0029] One side of the first gear 5 is fixedly connected to a pulley 17 on one side. By fixing the first gear 5 on one of the pulleys 17, when the first gear 5 rotates under the drive of the driving motor 4, it will also synchronously drive a pulley 17 to rotate. One pulley 17 drives another pulley 17 to rotate through a transmission belt 18. The rotation of the two pulleys 17 drives the extrusion rotation of the twin screws in the twin-screw granulator body 2, and then drives the extrusion processing and cutting processing on the twin-screw granulator body 2 through a driving motor 4, which helps to save a certain amount of motor cost.
[0030] The working principle and use process of the utility model are as follows: first, the first gear 5 is driven to rotate under the power output of the driving motor 4, and the first gear 5 drives the second gear 6 to rotate. The second gear 6 drives the cutting knife 9 to cut and rotate through the rotating rod 7. The cutting knife 9 cuts the material extruded at the extrusion port 3 by rotating. When the first gear 5 is driven by the driving motor 4 to rotate, it will also synchronously drive a pulley 17 to rotate. One pulley 17 drives another pulley 17 to rotate through a transmission belt 18. The rotation of the two pulleys 17 drives the extrusion of the twin screws in the twin-screw granulator body 2 to rotate, and then the twin screw granulator body 2 on the driving motor 4 is driven by the driving motor 4. During the extrusion and cutting processes, since the grooves 10 are provided on the cutting knife 9, the area of plastic particles sticking to the surface of the cutting knife 9 is reduced, and thus the plastic particles are not easy to stick to the cutting knife 9, and when the cutting knife 9 rotates counterclockwise, it will pass through the limit of the first brush plate 12 and the second brush plate 13 in the brush frame 11, wherein the second brush plate 13 will be pressed by the cutting knife 9 through the rebound of the torsion spring 14 and rotate open, and filter out the particles that may be stuck on the cutting knife 9, so that the cutting knife 9 can ensure a smooth surface when falling and cutting, and the setting of the limiting block 15 can ensure that the second brush plate 13 bends downward and forms a certain restricted space with the first brush plate 12.
[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A twin-screw granulator with a cutting structure, comprising a machine platform (1), characterized in that: A twin-screw granulator body (2) is fixedly arranged on the machine platform (1), an extrusion port (3) is provided on one side of the twin-screw granulator body (2), a driving motor (4) is fixedly connected to the machine platform (1), an output shaft of the driving motor (4) is fixedly connected to a first gear (5), a second gear (6) is meshed on one side of the first gear (5), a rotating rod (7) is fixedly connected on one side of the second gear (6), two fixed blocks (8) are fixedly connected to the twin-screw granulator body (2), the rotating rod (7) penetrates and is rotatably connected to the inside of the two fixed blocks (8), and one end of the rotating rod (7) is fixedly connected to the first gear (5). A cutting knife (9) is fixedly connected, and a plurality of grooves (10) are provided on the cutting knife (9); a brush frame (11) is fixedly connected to one side of the twin-screw granulator body (2); a first brush plate (12) is fixedly connected to the inner side of the brush frame (11); a second brush plate (13) is rotatably connected to the inner side of the brush frame (11); the first brush plate (12) and the second brush plate (13) form a V shape; a torsion spring (14) is provided at the rotation point of the second brush plate (13); a limiting block (15) is fixedly connected to the brush frame (11); and the limiting block (15) is provided at the rotation point of the second brush plate (13).
2. A twin-screw granulator with a cutting structure according to claim 1, characterized in that: The diameter of the first gear (5) is greater than the diameter of the second gear (6).
3. The twin-screw granulator with a cutting structure according to claim 1, characterized in that: The cutting knife (9) is located at the extrusion outlet (3).
4. The twin-screw granulator with a cutting structure according to claim 1, characterized in that: The twin-screw granulator body (2) is connected to a feed port (16).
5. The twin-screw granulator with a cutting structure according to claim 1, characterized in that: The twin-screw rotating parts on one side of the twin-screw granulator body (2) are fixedly connected with pulleys (17), and a transmission belt (18) is arranged between the two pulleys (17).
6. A twin-screw granulator with a cutting structure according to claim 5, characterized in that: One side of the first gear (5) is fixedly connected to one side of the belt pulley (17).