Filament dividing device of double-screw extruder

Abstract

The utility model discloses a filament dividing device of twin-screw extruder, including box body, the top of box body close to the left side is equipped with two first fixed mount, be equipped with the separator roller, first guide roller and press roller between the two first fixed mount, the outside edge of first guide roller close to the front end fixed sleeve is equipped with first geneva wheel, the first geneva wheel is equipped with second geneva wheel, the second geneva wheel is equipped with second geneva wheel, the first geneva wheel is equipped with second geneva wheel, and the second geneva wheel is equipped with second geneva wheel. A driven rod is arranged at the bottom of an inner cavity of the box body, sealing bearings are fixedly connected to the front side and the rear side of the box body in an inserted mode, the two ends of the driven rod fixedly penetrate through the adjacent sealing bearings respectively, and a second grooved wheel is fixedly arranged at the position, close to the front end, of the edge of the outer side of the driven rod in a sleeved mode. In the using process, a first butterfly screw is screwed off, fixing of a connecting rod and a vertical plate is unfastened, then the connecting rod is held to drive the cooling fan to overturn upwards, the cooling fan is overturned upwards with a pin shaft as the center, the cooling fan is overturned to the position away from the top of the box body, and at the moment, the arrangement work of ribbons is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of twin-screw extruder technology, specifically to a twin-screw extruder filament splitting device. Background Technology

[0002] Twin-screw extruders were developed based on single-screw extruders. Due to their excellent feeding performance, mixing and plasticizing performance, venting performance, and extrusion stability, they have been widely used in the molding and processing of extruded products.

[0003] A search revealed that patent (application number: 202322653662.6) discloses "a filament splitting device for a twin-screw extruder." This device suffers from insufficient contact between the flat filaments and the cooling water, resulting in a dual cooling effect that enhances the cooling of the filaments in the twin-screw extruder. However, this device has the following problems during use:

[0004] First, the hollow column in the device is mainly responsible for confining the ribbon in water for cooling. However, the hollow column adopts a pipe-type hollow structure, and as shown in the attached diagram, both ends of the hollow column are bent upwards. Since the ribbon is at a very high temperature after being extruded from the twin-screw extruder, it is very difficult to pass through the hollow column. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, one of the objectives of this utility model is to provide a filament splitting device for a twin-screw extruder.

[0006] One of the objectives of this utility model is achieved through the following technical solution:

[0007] A filament splitting device for a twin-screw extruder includes a housing. Two first fixed frames are located near the left side of the top of the housing. A filament splitting roller, a first guide roller, and a pressure roller are positioned between the two first fixed frames. A first grooved wheel is fixedly fitted onto the outer edge of the first guide roller near its front end. A driven rod is located at the bottom of the inner cavity of the housing. Sealed bearings are fixedly inserted into both the front and rear sides of the housing. Adjacent sealed bearings are fixedly inserted through both ends of the driven rod. A second grooved wheel is fixedly fitted onto the outer edge of the driven rod near its front end. A belt connects the first and second grooved wheels via belt drive. Several disturbance rods are fixedly connected to the outer edge of the driven rod. A cooling fan is located near the center of the top of the housing. Two second fixed frames are located on the right side of the inner cavity of the housing, and three second guide rollers are positioned between the two second fixed frames.

[0008] Preferably, the bottom of the first fixing frame is fixedly connected to two support plates, which are fixedly connected to the outer wall of the box.

[0009] Preferably, the two ends of the splitting roller, the first guide roller, and the pressure roller are rotatably connected to the adjacent first fixed frame, the splitting roller is located near the left side of the first fixed frame, the first guide roller is located near the center of the first fixed frame, and the pressure roller is located near the right side of the first fixed frame.

[0010] Preferably, a first connecting plate is fixedly connected to the rear side of the cooling fan, and second connecting plates are provided on both the left and right sides of the first connecting plate. A pin is provided through the inner cavity of the first connecting plate, and the first connecting plate is rotatably connected to the pin. The two ends of the pin are fixedly connected through the adjacent second connecting plates. The second connecting plates are fixedly connected to the top of the housing. A connecting rod is fixedly connected to the front side of the cooling fan, and the bottom end of the connecting rod is in contact with the top of the housing. A vertical plate is fixedly connected to the bottom of the connecting rod, and a first wing screw is inserted into the front side of the vertical plate. The first wing screw is threadedly connected to the front side of the housing.

[0011] Preferably, a drain valve is fixedly inserted into the left side of the box, and the drain valve is close to the bottom of the box.

[0012] Preferably, the two ends of the second guide roller are rotatably connected to the second fixed frame, and the two ends of the upper second guide roller are rotatably connected to the front and rear side walls of the box. A horizontal plate is fixedly connected to the left side of the upper second guide roller. The horizontal plate is close to the front side of the second guide roller. Two fixed plates are fixedly connected to the front side of the second guide roller. The bottom of the horizontal plate is in contact with the top of the adjacent fixed plate. A second wing screw is inserted into the top of the horizontal plate. The second wing screw is threadedly connected to the adjacent fixed plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The present invention relates to a filament splitting device for a twin-screw extruder. During use, the first wing screw is unscrewed to release the fixing of the connecting rod and the vertical plate. Then, the connecting rod is held to drive the cooling fan to rotate upward. The cooling fan rotates upward around the pin shaft. The cooling fan is rotated to the top away from the box body, which makes the filament arrangement work more convenient.

[0015] 2. This utility model discloses a filament splitting device for a twin-screw extruder. After the filaments are arranged, the cooling fan is flipped to the top of the housing, and then the first wing screw is tightened to fix the cooling fan. The fan can blow air onto the water surface. During the conveying process of the filaments, the first guide roller will rotate. The first guide roller drives the driven rod to rotate through the first grooved wheel, the second grooved wheel and the belt. The driven rod drives the disturbance rod to rotate. Under the stirring action of the disturbance rod, the water in the housing is cooled evenly.

[0016] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a frontal perspective view of the present invention;

[0018] Figure 2 This is a front perspective view of the driven rod of the component of this utility model;

[0019] Figure 3 This is a front perspective view of the wire-separating roller component of this utility model;

[0020] Figure 4 This is a front perspective view of the connecting rod of this utility model.

[0021] Figure 5 This is a rear perspective view of the connecting rod of this utility model.

[0022] Figure 6 This is a front perspective view of the second fixing bracket of this utility model component;

[0023] Figure 7 This utility model Figure 1 Enlarged view of point A in the middle.

[0024] Labels in the diagram: 1. Box body; 2. Drain valve; 3. First fixing frame; 4. Support plate; 5. Splitting roller; 6. First guide roller; 7. Pressure roller; 8. First grooved wheel; 9. Second grooved wheel; 10. Belt; 11. Driven rod; 12. Disturbance rod; 13. Cooling fan; 14. First connecting plate; 15. Second connecting plate; 16. Pin; 17. Connecting rod; 18. Vertical plate; 19. First wing screw; 20. Second fixing frame; 21. Second guide roller; 22. Horizontal plate; 23. Second wing screw; 24. Fixing plate. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Please see Figure 1-7 This utility model provides a technical solution: a filament splitting device for a twin-screw extruder, comprising a housing 1, a drain valve 2 fixedly inserted on the left side of the housing 1, with the drain valve 2 near the bottom of the housing 1, and two first fixing frames 3 located on the top of the housing 1 near the left side, with two support plates 4 fixedly connected to the bottom of the first fixing frames 3, the support plates 4 being fixedly connected to the outer wall of the housing 1, and a filament splitting roller 5, a first guide roller 6, and a pressure roller 7 located between the two first fixing frames 3, the filament splitting roller 5 having several filament splitting grooves, and the two ends of the filament splitting roller 5, the first guide roller 6, and the pressure roller 7 being rotatably connected to the adjacent first fixing frames 3 respectively, the filament splitting roller 5 being close to the first fixing frame 3. On the left side, the first guide roller 6 is located near the center of the first fixed frame 3, and the pressure roller 7 is located near the right side of the first fixed frame 3. The outer edge of the first guide roller 6 is fixedly fitted with a first grooved wheel 8 near the front end. The bottom of the inner cavity of the housing 1 is provided with a driven rod 11. Sealed bearings are fixedly inserted on both the front and rear sides of the housing 1. The two ends of the driven rod 11 are respectively fixedly inserted through adjacent sealed bearings. The outer edge of the driven rod 11 is fixedly fitted with a second grooved wheel 9 near the front end. A belt 10 is provided between the first grooved wheel 8 and the second grooved wheel 9. The first grooved wheel 8 and the second grooved wheel 9 are connected by the belt 10. Several disturbance rods 12 are fixedly connected to the outer edge of the driven rod 11.

[0029] A cooling fan 13 is located near the center of the top of the housing 1. A first connecting plate 14 is fixedly connected to the rear of the cooling fan 13. A second connecting plate 15 is provided on both the left and right sides of the first connecting plate 14. A pin 16 is provided through the inner cavity of the first connecting plate 14. The first connecting plate 14 and the pin 16 are rotatably connected. The two ends of the pin 16 are fixedly connected through the adjacent second connecting plates 15. The second connecting plates 15 are fixedly connected to the top of the housing 1. A connecting rod 17 is fixedly connected to the front of the cooling fan 13. The bottom end of the connecting rod 17 is in contact with the top of the housing 1. A vertical plate 18 is fixedly connected to the bottom of the connecting rod 17. A first wing screw 19 is inserted into the front of the vertical plate 18. The first wing screw 19 is threadedly connected to the front of the housing 1.

[0030] Two second fixing brackets 20 are provided on the right side of the inner cavity of the housing 1. Three second guide rollers 21 are provided between the two second fixing brackets 20. The two ends of the second guide rollers 21 are rotatably connected to the second fixing brackets 20 respectively. The two ends of the upper second guide rollers 21 are rotatably connected to the front and rear side walls of the housing 1. A horizontal plate 22 is fixedly connected to the left side of the upper second guide rollers 21. The horizontal plate 22 is close to the front side of the second guide rollers 21. Two fixing plates 24 are fixedly connected to the front side of the second guide rollers 21. The bottom of the horizontal plate 22 is in contact with the top of the adjacent fixing plate 24. A second wing screw 23 is inserted into the top of the horizontal plate 22. The second wing screw 23 is threadedly connected to the adjacent fixing plate 24.

[0031] Working principle: This utility model is a filament splitting device for a twin-screw extruder. During use, unscrew the first wing screw 19 to release the fixing of the connecting rod 17 and the vertical plate 18. Then, hold the connecting rod 17 to drive the cooling fan 13 to rotate upward. The cooling fan 13 rotates upward with the pin 16 as the center. Rotate the cooling fan 13 to the top away from the box 1. At this time, the filament arrangement is more convenient.

[0032] Afterwards, the ribbon will first exit from the extrusion port of the twin-thread extruder, and then be immersed in the housing 1 for cooling along the three second guide rollers 21. Afterwards, it will pass through one of the middle second guide rollers 21 and be conveyed to the splitting roller 5 along the pressure roller 7 and the first guide roller 6. Each filament will continue to travel in the splitting groove of the splitting roller 5.

[0033] After the ribbon is arranged, flip the cooling fan 13 to the top of the box 1, and then tighten the first wing screw 19 to fix the cooling fan 13. The fan 7 can blow air towards the water surface. During the ribbon conveying process, the first guide roller 6 will rotate. The first guide roller 6 drives the driven rod 11 to rotate through the first grooved wheel 8, the second grooved wheel 9 and the belt 10. The driven rod 11 drives the disturbance rod 12 to rotate. Under the stirring action of the disturbance rod 12, the water in the box 1 is cooled evenly.

[0034] When it is necessary to clean the second guide roller 21, first loosen the second wing screw 23 to release the fixation of the second fixing frame 20, and then flip the second fixing frame 20 clockwise. The second fixing frame 20 flips with the second guide roller 21 above it as the center. The second fixing frame 20 flips to the inner cavity away from the box 1. At this time, the horizontal plate 22 flips to the top of the other fixing plate 24. Then tighten the second wing screw 23 to fix the second fixing frame 20, and then clean the second guide roller 21.

[0035] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0040] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A filament splitting device for a twin-screw extruder, comprising a housing (1), characterized in that: Two first fixing brackets (3) are provided on the top of the housing (1) near the left side. Between the two first fixing brackets (3) are a splitting roller (5), a first guide roller (6) and a pressure roller (7). A first grooved wheel (8) is fixedly sleeved on the outer edge of the first guide roller (6) near the front end. A driven rod (11) is provided at the bottom of the inner cavity of the housing (1). Sealed bearings are fixedly inserted on both the front and rear sides of the housing (1). The two ends of the driven rod (11) are respectively fixedly inserted through the adjacent sealed bearings. The outer edge of the driven rod (11) near the front end A second grooved wheel (9) is fixedly fitted at the first grooved wheel (8) and the second grooved wheel (9). A belt (10) is provided between the first grooved wheel (8) and the second grooved wheel (9). The first grooved wheel (8) and the second grooved wheel (9) are connected by the belt (10). Several disturbance rods (12) are fixedly connected to the outer edge of the driven rod (11). A cooling fan (13) is provided at the top of the box (1) near the center. Two second fixing frames (20) are provided on the right side of the inner cavity of the box (1). Three second guide rollers (21) are provided between the two second fixing frames (20).

2. The filament splitting device for a twin-screw extruder according to claim 1, characterized in that: The bottom of the first fixing frame (3) is fixedly connected to two support plates (4), which are fixedly connected to the outer wall of the box (1).

3. The filament splitting device for a twin-screw extruder according to claim 1, characterized in that: The two ends of the splitting roller (5), the first guide roller (6) and the pressure roller (7) are rotatably connected to the adjacent first fixed frame (3). The splitting roller (5) is close to the left side of the first fixed frame (3), the first guide roller (6) is close to the center of the first fixed frame (3), and the pressure roller (7) is close to the right side of the first fixed frame (3).

4. The filament splitting device for a twin-screw extruder according to claim 1, characterized in that: The rear side of the cooling fan (13) is fixedly connected to a first connecting plate (14). The left and right sides of the first connecting plate (14) are provided with second connecting plates (15). The inner cavity of the first connecting plate (14) is provided with a pin (16). The first connecting plate (14) and the pin (16) are rotatably connected. The two ends of the pin (16) are fixedly connected to the adjacent second connecting plates (15). The second connecting plates (15) are fixedly connected to the top of the box (1). The front side of the cooling fan (13) is fixedly connected to a connecting rod (17). The bottom end of the connecting rod (17) is in contact with the top of the box (1). The bottom of the connecting rod (17) is fixedly connected to a vertical plate (18). The front side of the vertical plate (18) is inserted with a first wing screw (19). The first wing screw (19) is threadedly connected to the front side of the box (1).

5. The filament splitting device for a twin-screw extruder according to claim 1, characterized in that: A drain valve (2) is fixedly inserted into the left side of the box (1), and the drain valve (2) is close to the bottom of the box (1).

6. The filament splitting device for a twin-screw extruder according to claim 1, characterized in that: The two ends of the second guide roller (21) are rotatably connected to the second fixed frame (20). The two ends of the upper second guide roller (21) are rotatably connected to the front and rear side walls of the box (1). A horizontal plate (22) is fixedly connected to the left side of the upper second guide roller (21). The horizontal plate (22) is close to the front side of the second guide roller (21). Two fixed plates (24) are fixedly connected to the front side of the second guide roller (21). The bottom of the horizontal plate (22) is in contact with the top of the adjacent fixed plate (24). A second wing screw (23) is inserted into the top of the horizontal plate (22). The second wing screw (23) is threadedly connected to the adjacent fixed plate (24).

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