An extrusion die

Abstract

The utility model discloses an extrusion die head, include: mould body, extrusion die core, extrusion die core sets up inside the mould body, the beneficial effects of the utility model are: through the outside fixed frame with the mould body connection of rotating rod, provide stable support, side fixed box further fixed rotating rod and provide the installation space for worm wheel and worm, and the transmission mode of worm wheel and worm engagement has self -locking, can guarantee the stability of rotating rod rotating position to ensure the stability of granulating scraper work, through the cooperation design of T type installation strip and T type installation slot, make granulating scraper with outer mounting seat's installation and disassembly more convenient and fast, be convenient for to granulating scraper change or maintenance, through the fixed mounting mode of bolt, nut and gasket, have guaranteed the firmness and stability of installation, ensure that granulating scraper does not loosen in the working process.

Description

Technical Field

[0001] This utility model relates to the field of extrusion die technology, specifically to an extrusion die. Background Technology

[0002] A dry granulator (usually referring to an extrusion granulator) is an industrial device that achieves dry granulation through mechanical extrusion. Its core principle is to apply high pressure to the material through counter-rotating rollers or screws, causing the powdery or lumpy material to expel air and rearrange particles during the extrusion process, forming granules with higher density. Traditional extrusion granulation equipment mostly uses a simple belt drive method. After long-term operation, belt drives are prone to slippage, resulting in unstable rotation speed of the granulation scraper, which in turn affects the uniformity of the granules and makes it difficult to ensure the stability and consistency of the granulation process. This leads to inconsistent quality of the produced granules, affecting the quality of subsequent products. Utility Model Content

[0003] The purpose of this invention is to provide an extrusion die to solve the problem mentioned in the background art that most traditional extrusion granulation equipment adopts a simple belt drive method. After long-term operation, the belt drive is prone to slippage, which leads to unstable rotation speed of the granulation scraper, thereby affecting the uniformity of the particles and making it difficult to ensure the stability and consistency of the granulation process. This results in inconsistent particle quality and affects the quality of subsequent products.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an extrusion die, comprising:

[0005] phantom;

[0006] Extrusion die core, which is located inside the die body;

[0007] A rotating rod is rotatably mounted on one side of the extrusion die core, and a second outer sliding sleeve is slidably mounted on the outer side of the rotating rod;

[0008] The first outer sliding sleeve is located outside the second outer sliding sleeve;

[0009] An outer fixed plate is fixed to the outside of the rotating rod, and the inner side of the first outer sliding sleeve is slidably connected to the outer fixed plate;

[0010] A spring is sleeved on the outside of the rotating rod. The spring is located inside the first outer sliding sleeve. One end of the spring is connected to the first outer sliding sleeve, and the other end of the spring is connected to the outer fixed plate.

[0011] An outer mounting base is symmetrically arranged on the outside of the first outer sliding sleeve, and a granulation scraper is installed on one side of the outer mounting base;

[0012] The drive unit is located on one side of the mold body, and the rotating rod is connected to the drive unit.

[0013] As a preferred embodiment of this utility model: the driving unit includes an outer fixed frame, a side fixed box, a worm gear, a worm, and a servo motor. The outer fixed frame is fixedly installed on the top of the mold body. The rotating rod is rotatably connected to the outer fixed frame. A side fixed box is fixedly connected to one side of the outer fixed frame. The rotating rod is rotatably connected to the side fixed box. A worm gear is fixedly connected to the outer side of the rotating rod. A worm is rotatably installed inside the side fixed box. The worm is meshed with the worm gear.

[0014] As a preferred embodiment of this utility model: a servo motor is installed on one side of the side fixing box, and the output end of the servo motor is fixedly connected to the worm gear.

[0015] As a preferred embodiment of this utility model: a T-shaped mounting strip is fixedly connected to one side of the granulation scraper, and a T-shaped mounting groove that mates with the T-shaped mounting strip is provided on one side of the outer mounting seat. The T-shaped mounting strip and the outer mounting seat are fixedly installed by bolts and nuts.

[0016] As a preferred embodiment of this utility model: the inner side of the second outer sliding sleeve is provided with multiple inner limiting grooves at equal intervals, and the outer side of the rotating rod is fixedly connected with multiple outer limiting strips at equal intervals, and the outer limiting strips are slidably connected to the inner limiting grooves.

[0017] As a preferred embodiment of this utility model, the extrusion die core has multiple extrusion ports inside.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model connects the rotating rod to the mold body through an external fixing frame, providing stable support. The side fixing box further fixes the rotating rod and provides installation space for the worm gear and worm. The transmission method of the worm gear and worm meshing has self-locking properties, which can ensure the stability of the rotating rod's rotation position, thereby ensuring the stability of the granulation scraper's operation. Through the matching design of the T-shaped mounting strip and the T-shaped mounting groove, the installation and disassembly of the granulation scraper and the external mounting seat are more convenient and quick, facilitating the replacement or maintenance of the granulation scraper. The fixing installation method of bolts, nuts and washers ensures the firmness and stability of the installation, ensuring that the granulation scraper will not loosen during operation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a bottom view of the present invention;

[0021] Figure 3 This is a rear view of the present invention;

[0022] Figure 4 This is a schematic diagram of the internal structure of the mold body and extrusion die core of this utility model;

[0023] Figure 5 This is a schematic diagram of the internal structure of the No. 1 outer sliding sleeve of this utility model;

[0024] Figure 6 This is a disassembly diagram of the external mounting base and granulation scraper of this utility model.

[0025] In the diagram: 1. Mold body; 2. Extrusion die core; 3. Extrusion port; 4. Rotating rod; 5. No. 1 outer sliding sleeve; 6. No. 2 outer sliding sleeve; 7. Inner limit groove; 8. Outer limit strip; 9. Outer fixed plate; 10. Spring; 11. Outer mounting base; 12. Granulating scraper; 13. T-shaped mounting strip; 14. T-shaped mounting groove; 15. Outer fixed frame; 16. Side fixed box; 17. Servo motor; 18. Worm gear; 19. Worm. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1 to 6 This utility model provides a technical solution: an extrusion die head, comprising: a die body 1; an extrusion die core 2 disposed inside the die body 1; a rotating rod 4 rotatably disposed on one side of the extrusion die core 2, with a second outer sliding sleeve 6 slidably disposed on the outer side of the rotating rod 4; a first outer sliding sleeve 5 fixedly connected to the outer side of the second outer sliding sleeve 6; an outer fixed plate 9 fixedly connected to the outer side of the rotating rod 4, with the inner side of the first outer sliding sleeve 5 slidably connected to the outer fixed plate 9; a spring 10 sleeved on the outer side of the rotating rod 4, the spring 10 located on the inner side of the first outer sliding sleeve 5, one end of the spring 10 connected to the first outer sliding sleeve 5, and the other end of the spring 10 connected to the outer fixed plate 9; an outer mounting base 11 symmetrically fixedly connected to the outer side of the first outer sliding sleeve 5, with a granulation scraper 12 mounted on one side of the outer mounting base 11; and a drive unit disposed on one side of the die body 1, with the rotating rod 4 connected to the drive unit.

[0028] It should be noted that in this embodiment, after the servo motor 17 starts, its output end drives the worm 19 to rotate. Since the worm 19 is meshed with the worm wheel 18, the rotation of the worm 19 is converted into the rotation of the worm wheel 18, which in turn drives the rotating rod 4, which is fixed to the worm wheel 18, to rotate. An outer fixing frame 15 is fixedly installed on the top of the mold body 1 by bolts. The rotating rod 4 is rotatably connected to the outer fixing frame 15. The outer fixing frame 15 provides stable support for the rotating rod 4. At the same time, the side fixing box 16 fixed to one side of the outer fixing frame 15 further fixes the rotating rod 4 and provides installation space for the worm wheel 18 and the worm 19. This transmission method of meshing the worm wheel 18 and the worm 19 has self-locking properties, which can ensure the stability of the rotation position of the rotating rod 4, thereby ensuring the stability of the granulation scraper 12. A T-shaped mounting strip 13 is fixedly connected to one side of the granulation scraper 12, and an opening is provided on one side of the outer mounting base 11 for the T-shaped mounting strip 13. The T-shaped mounting groove 14 is used to install the granulation scraper 12 and the outer mounting base 11. By inserting the T-shaped mounting strip 13 into the T-shaped mounting groove 14 and fixing it with bolts, nuts and washers, the installation and disassembly of the granulation scraper 12 and the outer mounting base 11 are more convenient and quick. This facilitates the replacement or maintenance of the granulation scraper 12 and ensures the firmness and stability of the installation, ensuring that the granulation scraper 12 will not loosen during operation. The outer mounting base 11 is symmetrically fixed to the outside of the first outer sliding sleeve 5. The first outer sliding sleeve 5 is fixed to the outside of the second outer sliding sleeve 6. Multiple inner limiting grooves 7 are equidistantly opened on the inner side of the second outer sliding sleeve 6 and are slidably connected to multiple outer limiting strips 8 equidistantly fixed to the outside of the rotating rod 4. This sliding connection between the inner limiting grooves 7 and the outer limiting strips 8 restricts the rotational freedom of the second outer sliding sleeve 6 on the rotating rod 4, so that the second outer sliding sleeve 6 can only slide along the axial direction of the rotating rod 4 and cannot rotate relative to it. When the rotating rod 4 rotates, it drives the first outer sliding sleeve 5, the second outer sliding sleeve 6, and the outer mounting base 11 to rotate, which in turn drives the granulation scraper 12 to rotate. At the same time, the spring 10 is sleeved on the outside of the rotating rod 4 and located inside the first outer sliding sleeve 5. One end of the spring 10 is connected to the first outer sliding sleeve 5, and the other end is connected to the outer fixed plate 9. The outer fixed plate 9 is fixed to the outside of the rotating rod 4. The spring 10 can provide a certain elastic force to help the granulation scraper 12 better adapt to the extruded material. The extrusion die core 2 is set inside the die body 1. Multiple extrusion ports 3 are opened inside the die core 2. The material is extruded through the extrusion ports 3 of the extrusion die core 2 to form multiple material streams. The rotating rod 4 drives the granulation scraper 12 to rotate. During the rotation process, the granulation scraper 12 scrapes off the extruded material to form granules, realizing the extrusion granulation process. Since multiple extrusion ports 3 are opened inside the extrusion die core 2, multiple material streams can be extruded at the same time, which improves the extrusion efficiency. The granulation scraper 12 scrapes the extruded material to perform granulation.

[0029] Mold body 1 and extrusion die core 2 are made of stainless steel and tool steel, and scraper is made of soft aluminum.

[0030] The specific architecture and operation logic of the servo motor 17 in this application, which achieves coordinated control through an external controller, are consistent with the existing technology in this field. The servo motor 17 is equipped with an encoder, which can provide real-time feedback on the speed, position and other information of the servo motor 17. This control method has been successfully applied in many similar industrial scenarios.

[0031] In one embodiment, such as Figures 1 to 3 As shown, the drive unit includes an outer fixed frame 15, a side fixed box 16, a worm gear 18, a worm 19, and a servo motor 17. The top of the mold body 1 is fixedly mounted with the outer fixed frame 15 by bolts. The rotating rod 4 is rotatably connected to the outer fixed frame 15. The side fixed box 16 is fixedly connected to one side of the outer fixed frame 15. The rotating rod 4 is rotatably connected to the side fixed box 16. The worm gear 18 is fixedly connected to the outside of the rotating rod 4. The worm 19 is rotatably arranged inside the side fixed box 16. The worm 19 is meshed with the worm gear 18.

[0032] It should be noted that in this embodiment, the rotating rod 4 is connected to the mold body 1 by the outer fixing frame 15, which provides stable support for the rotating rod 4. The side fixing box 16 further fixes the rotating rod 4 and provides installation space for the worm wheel 18 and the worm 19. The worm wheel 18 and the worm 19 are meshed and connected, which realizes the transformation of the rotation of the worm 19 into the rotation of the rotating rod 4 driven by the worm wheel 18. This transmission method has self-locking property, which can ensure the stability of the rotation position of the rotating rod 4, thereby ensuring the stability of the operation of the granulation scraper 12.

[0033] In one embodiment, such as Figures 1 to 3 As shown, a servo motor 17 is bolted to one side of the side fixing box 16, and the output end of the servo motor 17 is fixedly connected to the worm gear 19.

[0034] It should be noted that in this embodiment, the servo motor 17 can precisely control the output speed and direction to provide power to the worm gear 19, which in turn drives the rotating rod 4 to rotate precisely through the worm wheel 18, thereby realizing the precise action of the granulation scraper 12 and meeting the requirements of different extrusion granulation processes for the scraper action.

[0035] In one embodiment, such as Figures 4 to 6 As shown, a T-shaped mounting strip 13 is fixedly connected to one side of the granulation scraper 12, and a T-shaped mounting groove 14 that mates with the T-shaped mounting strip 13 is provided on one side of the outer mounting base 11. The T-shaped mounting strip 13 and the outer mounting base 11 are fixedly installed by bolts and nuts.

[0036] It should be noted that, in this embodiment, the design of the T-shaped mounting strip 13 and the T-shaped mounting groove 14 makes the installation and disassembly of the granulation scraper 12 and the outer mounting base 11 more convenient and quick, facilitating the replacement or maintenance of the granulation scraper 12. The scraper 12 is fixedly installed by bolts and nuts, and washers are also provided on the outside of the bolts to ensure the firmness and stability of the installation and to ensure that the granulation scraper 12 will not loosen during operation.

[0037] In one embodiment, such as Figure 5 and Figure 6 As shown, multiple inner limiting grooves 7 are equidistantly provided on the inner side of the second outer sliding sleeve 6, and multiple outer limiting strips 8 are equidistantly fixed on the outer side of the rotating rod 4. The outer limiting strips 8 are slidably connected to the inner limiting grooves 7.

[0038] It should be noted that, in this embodiment, the sliding connection between the inner limiting groove 7 and the outer limiting strip 8 restricts the rotational freedom of the second outer sliding sleeve 6 on the rotating rod 4, so that the second outer sliding sleeve 6 can only slide along the axial direction of the rotating rod 4 and cannot rotate relative to it, thereby improving the reliability of the granulation scraper 12.

[0039] In one embodiment, such as Figure 1 , Figure 2 and Figure 4 As shown, the extrusion die core 2 has multiple extrusion ports 3 inside.

[0040] It should be noted that in this embodiment, multiple extrusion ports 3 are opened inside the extrusion die core 2, which can extrude multiple strands of material at the same time, improving extrusion efficiency and meeting the needs of large-scale production.

[0041] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] Furthermore, the terms “first,” “second,” “third,” and “fourth” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as “first,” “second,” “third,” or “fourth” may explicitly or implicitly include at least one of those features.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", 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 connection 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.

[0044] Although embodiments of the present invention 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 to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An extrusion die, characterized in that, include: phantom (1); Extrusion die (2) is disposed inside the die body (1); Rotating rod (4) is rotatably disposed on one side of extrusion die core (2), and a second outer sliding sleeve (6) is slidably disposed on the outer side of the rotating rod (4); The first outer sliding sleeve (5) is located on the outside of the second outer sliding sleeve (6); The outer fixed plate (9) is fixed to the outside of the rotating rod (4), and the inner side of the first outer sliding sleeve (5) is slidably connected to the outer fixed plate (9). Spring (10) is sleeved on the outside of rotating rod (4). The spring (10) is located inside the first outer sliding sleeve (5). One end of the spring (10) is connected to the first outer sliding sleeve (5), and the other end of the spring (10) is connected to the outer fixed plate (9). An outer mounting base (11) is symmetrically arranged on the outside of the first outer sliding sleeve (5), and a granulation scraper (12) is installed on one side of the outer mounting base (11). The drive unit is located on one side of the mold body (1), and the rotating rod (4) is connected to the drive unit.

2. The extrusion die according to claim 1, characterized in that: The drive unit includes an outer fixed frame (15), a side fixed box (16), a worm gear (18), a worm (19), and a servo motor (17). The outer fixed frame (15) is fixedly installed on the top of the mold body (1). The rotating rod (4) is rotatably connected to the outer fixed frame (15). The side fixed box (16) is fixedly connected to one side of the outer fixed frame (15). The rotating rod (4) is rotatably connected to the side fixed box (16). The worm gear (18) is fixedly connected to the outside of the rotating rod (4). The worm (19) is rotatably installed inside the side fixed box (16). The worm (19) is meshed with the worm gear (18).

3. An extrusion die according to claim 2, characterized in that: A servo motor (17) is installed on one side of the side fixing box (16), and the output end of the servo motor (17) is fixedly connected to the worm gear (19).

4. An extrusion die according to claim 1, characterized in that: A T-shaped mounting strip (13) is fixedly connected to one side of the granulation scraper (12), and a T-shaped mounting groove (14) that mates with the T-shaped mounting strip (13) is provided on one side of the outer mounting base (11). The T-shaped mounting strip (13) and the outer mounting base (11) are fixedly installed by bolts and nuts.

5. An extrusion die according to claim 1, characterized in that: The inner side of the second outer sliding sleeve (6) is provided with multiple inner limiting grooves (7) at equal intervals, and the outer side of the rotating rod (4) is fixed with multiple outer limiting strips (8) at equal intervals. The outer limiting strips (8) are slidably connected to the inner limiting grooves (7).

6. An extrusion die according to claim 1, characterized in that: The extrusion die core (2) has multiple extrusion ports (3) inside.

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