A single screw extruder extrusion die

Abstract

The utility model discloses a single screw extruder extrusion die, extrusion die is connected in extrusion host, and extrusion die main part is extrusion head, and one end of extrusion head is equipped with the engagement lever, and is connected in the discharge end of extrusion host through the engagement lever, and is equipped with the second chute on the inner wall of extrusion head, and the sliding sleeve is slidably connected in the second chute, and the outer wall of sliding sleeve is extendedly connected with the drive assembly, and the inner wall of sliding sleeve is extendedly connected with the adjusting cone, and the clearance is formed between adjusting cone and extrusion head, the utility model provides a single screw extruder extrusion die, and the thickness and parameter of product are controlled through the reserved clearance between adjusting cone and extrusion ring, and the production flexibility is improved, and the demand of frequently changing mould is avoided.

Description

Technical Field

[0001] This utility model relates to the field of extruder technology, and in particular to an extrusion die for a single screw extruder. Background Technology

[0002] The design of extrusion dies for single-screw extruders plays a crucial role in improving product quality and production efficiency. Modern die design is increasingly trending towards intelligence and high efficiency, better meeting production demands through optimized design and increased flexibility. With advancements in materials technology, dies are also evolving towards greater precision, environmental friendliness, and energy efficiency to meet market demands for sustainability and high performance. In the future, extrusion dies will continue to be optimized in terms of precision, efficiency, and resource utilization to drive continuous progress in the industry.

[0003] However, in actual use, the extrusion dies of existing extruders lack adjustment capabilities, resulting in fixed parameters for the thickness and cross-sectional dimensions of the extruded products. This leads to poor production flexibility, an inability to quickly adapt to different production requirements, and reduced production line adaptability and efficiency. Furthermore, it prevents optimized material utilization, resulting in raw material waste. The fixed die design also increases the complexity of die replacement and downtime, further reducing production efficiency. In terms of cost, the lack of adjustability may require companies to design multiple dies for different specifications, increasing investment and maintenance costs.

[0004] Therefore, existing technologies still need to be improved and enhanced. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an extrusion die for a single screw extruder, which aims to solve the problem that the parameters of the thickness and cross-sectional specifications of the extruded products of the prior art are fixed, resulting in poor production flexibility, inability to quickly adapt to the production needs of different specifications, and reduced adaptability and efficiency of the production line.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An extrusion die for a single-screw extruder is provided. The extrusion die is connected to the extrusion host. The main body of the extrusion die is an extrusion head. One end of the extrusion head is provided with a locking rod, which is locked to the discharge end of the extrusion host through the locking rod. A second sliding groove is provided on the inner wall of the extrusion head. A sliding sleeve is slidably connected in the second sliding groove. A drive assembly is extended from the outer wall of the sliding sleeve. An adjusting cone is extended from the inner wall of the sliding sleeve. A gap is formed between the adjusting cone and the extrusion head.

[0007] Furthermore, the locking rod is provided in multiple L-shaped components, with the short arm end of the locking rod fixedly connected to the extrusion head and the long arm end of the locking rod locked to the extrusion host.

[0008] Furthermore, the discharge end of the extruder is provided with a connector, and the side wall of the connector away from the extruder is provided with a plurality of first sliding grooves. A slot is provided inside the first sliding groove, and the first sliding groove is slidably connected to the locking rod. The slot is engaged with the locking rod.

[0009] Furthermore, multiple pneumatic pins are fixedly connected to the outer wall of the connector, and the output end of the pneumatic pins is engaged with the end of the engaging rod.

[0010] Furthermore, the drive components are configured as groups, and the group drive components are evenly spaced on the outer wall of the extruder head with the adjusting cone axis as the axis.

[0011] Furthermore, the drive component is a hydraulic cylinder, which is located on the outer wall of the extrusion head and fixed by a support plate, and the output end of the hydraulic cylinder is connected to the sliding sleeve.

[0012] Furthermore, a transmission rod is provided on the outer wall of the sliding sleeve, the end of which is connected to the output end of the hydraulic cylinder, and a connecting rod extends from the inner wall of the sliding sleeve, which is connected to the outer wall of the adjusting cone.

[0013] Furthermore, an extrusion ring is provided on the inner wall of the end of the extruder away from the extruder host, and the extrusion ring cooperates with the conical surface of the adjusting cone.

[0014] The technical solution adopted in this utility model has the following beneficial effects: 1. The single-screw extruder die of this utility model utilizes a drive assembly, transmission rod, sliding sleeve, and connecting rod to move an adjusting cone inside the extrusion head. By controlling the pre-set gap between the adjusting cone and the extrusion ring, the thickness and parameters of the product are controlled, improving production flexibility and avoiding the need for frequent die changes. Precise gap control helps maintain product quality consistency and reduces batch-to-batch fluctuations. Simultaneously, the adjustment function helps optimize material use, reduce waste, and thus lower production costs.

[0015] 2. The single-screw extruder die of this utility model, through the cooperation of the locking rod and the limiting component, allows for rapid replacement of the die, which consists of the extrusion head and the inner structure. This significantly improves production efficiency, reduces die replacement time and downtime, and ensures the efficient operation of the production line. Furthermore, rapid die replacement makes production more flexible, enabling quick responses to the production needs of different products, reducing production delays caused by die changes, while also lowering operational complexity and labor costs, and optimizing the production process. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2This is a schematic diagram of a partial cross-sectional structure at the extruder head in this utility model. Figure 1 ; Figure 3 This is a schematic diagram of a partial cross-sectional structure at the extruder head in this utility model. Figure 2 ; Figure 4 This is a schematic diagram of a partial cross-sectional structure at the extruder head in this utility model. Figure 3 ; Figure 5 This is a partial three-dimensional structural diagram of the extruder head in this utility model; Figure 6 This is a schematic diagram of a partial cross-sectional structure at the extruder head in this utility model. Figure 4 .

[0017] 1. Extrusion host; 11. Connector; 12. First chute; 13. Slot; 14. Pneumatic pin; 2. Extrusion head; 21. Second chute; 22. Support plate; 23. Transmission rod; 24. Sliding sleeve; 25. Connecting rod; 26. Adjusting cone; 27. Extrusion ring; 28. Hydraulic cylinder; 3. Engaging rod. Detailed Implementation

[0018] To make the objectives, technical solutions, and effects of this utility model clearer and more explicit, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0019] Example:

[0020] Reference Figure 1-6 An extrusion die for a single-screw extruder is provided. The extrusion die is connected to the extrusion host 1. The main body of the extrusion die is an extrusion head 2. One end of the extrusion head 2 is provided with a locking rod 3, which is locked to the discharge end of the extrusion host 1. A second sliding groove 21 is provided on the inner wall of the extrusion head 2. A sliding sleeve 24 is slidably connected in the second sliding groove 21. A drive assembly is extended from the outer wall of the sliding sleeve 24. An adjusting cone 26 is extended from the inner wall of the sliding sleeve 24. A gap is formed between the adjusting cone 26 and the extrusion head 2.

[0021] Among them, reference Figures 3-6The connector 11 has multiple locking rods 3 arranged in an L-shape. The short arm end of the locking rod 3 is fixedly connected to the extrusion head 2, and the long arm end of the locking rod 3 is engaged with the extrusion host 1. The limiting component includes multiple first sliding grooves 12 provided on the side wall of the connector 11 away from the extrusion host 1. The inner side of the first sliding groove 12 is provided with a slot 13. The first sliding groove 12 is slidably connected to the locking rod 3, and the slot 13 is engaged with the locking rod 3. Multiple pneumatic pins 14 are fixedly connected to the outer wall of the connector 11. The output end of the pneumatic pin 14 is engaged with the end of the locking rod 3. By inserting the locking rod 3 into the first sliding groove 12 and rotating it, the locking rod 3 is engaged and fixed through the slot 13. Then, the end of the locking rod 3 is engaged and fixed through the pneumatic pin 14, thus completing the quick connection between the connector 11 and the locking rod 3.

[0022] The second groove 21 and the sliding sleeve 24 together form a sealing assembly. The second groove 21 is opened on the inner side of the middle section of the extruder head 2. The sliding sleeve 24 is slidably connected to the inner side of the second groove 21. The sliding sleeve 24 seals the second groove 21, and at the same time, the sliding sleeve 24 can slide inside the second groove 21.

[0023] like Figure 2 and Figure 3 As shown, the drive assembly is set in two groups, and the two groups of drive assemblies are evenly spaced on the outer wall of the extrusion head 2 with the axis of the adjusting cone 26 as the axis. The drive assembly includes a hydraulic cylinder 28 fixed to the outer wall of the support plate 22 near the extrusion host 1. The hydraulic cylinder 28 is supported and fixed by the support plate 22. The output end of the hydraulic cylinder 28 is fixedly connected to the transmission rod 23. The hydraulic cylinder 28 supports and fixes the transmission rod 23, and at the same time, the hydraulic cylinder 28 drives the transmission rod 23 to move laterally. The bottom end of the transmission rod 23 is fixedly connected to the outer wall of the sliding sleeve 24. The inner side wall of the sliding sleeve 24 is fixedly connected to the outer end of the connecting rod 25. The transmission rod 23 drives the connecting rod 25 to move synchronously through the sliding sleeve 24.

[0024] like Figure 2 and Figure 3 As shown, an extrusion ring 27 is also provided on the inner wall of the end of the extrusion head 2 away from the extrusion host 1. The extrusion ring 27 cooperates with the conical surface of the adjusting cone 26. The adjusting cone 26 is supported and fixed by the connecting rod 25. At the same time, the reserved gap between the adjusting cone 26 and the extrusion ring 27 is controlled by the lateral movement of the adjusting cone 26, thereby adjusting the thickness and parameters of the extruded product.

[0025] A rubber layer is also provided on the outer wall at the connection position between the extruder head 2 and the connector 11. By providing the rubber layer, the sealing between the connector 11 and the extruder head 2 can be increased.

[0026] Specifically, when using the extrusion die of this single-screw extruder: First, insert the locking rod 3 on the outside of the extruder head 2 into the first slide groove 12, then rotate the extruder head 2 to insert the locking rod 3 into the slot 13. The slot 13 locks and fixes the locking rod 3. Then, insert the output end into the end of the locking rod 3 through the pneumatic pin 14 to limit the locking rod 3 and complete the quick connection between the connector 11 and the extruder head 2. During the extrusion process, when the sliding sleeve 24 is driven to slide in the second groove 21 by the transmission rod 23 through the output end of the hydraulic cylinder 28, the adjusting cone 26 is moved synchronously by the connecting rod 25, thereby adjusting the reserved gap between the adjusting cone 26 and the extrusion ring 27, thereby controlling the thickness and cross-sectional parameters of the extruded product.

[0027] In summary, the single-screw extruder die of this invention, through a drive assembly using a transmission rod 23, a sliding sleeve 24, and a connecting rod 25, moves an adjusting cone 26 within the extrusion head 2. This allows for control of the product thickness and parameters by adjusting the pre-set gap between the adjusting cone 26 and the extrusion ring 27, improving production flexibility and avoiding the need for frequent die changes. Precise gap control helps maintain product quality consistency and reduces batch-to-batch fluctuations. Simultaneously, the adjustment function helps optimize material usage, reduce waste, and thus lower production costs.

[0028] Furthermore, the single-screw extruder die of this invention, through the cooperation of the locking rod 3 and the limiting component, allows for rapid replacement of the die consisting of the extrusion head 2 and the inner structure, significantly improving production efficiency, reducing die replacement time and downtime, and ensuring efficient operation of the production line. Secondly, rapid die replacement makes production more flexible, enabling quick responses to the production needs of different products, reducing production delays caused by die changes, while also lowering operational complexity and labor costs, and optimizing the production process.

Claims

1. An extrusion die for a single-screw extruder, the extrusion die being connected to the extrusion host (1), characterized in that, The main body of the extrusion die is an extrusion head (2). One end of the extrusion head (2) is provided with a locking rod (3), which is locked to the discharge end of the extrusion host (1) through the locking rod (3). The inner wall of the extrusion head (2) is provided with a second sliding groove (21). A sliding sleeve (24) is slidably connected in the second sliding groove (21). A drive assembly is extended from the outer wall of the sliding sleeve (24). An adjusting cone (26) is extended from the inner wall of the sliding sleeve (24). A gap is formed between the adjusting cone (26) and the extrusion head (2).

2. The single-screw extruder die according to claim 1, characterized in that, The locking rod (3) is provided in multiple L-shaped components, and the short arm end of the locking rod (3) is fixedly connected to the extrusion head (2), while the long arm end of the locking rod (3) is locked to the extrusion host (1).

3. The single-screw extruder die according to claim 2, characterized in that, The discharge end of the extrusion host is provided with a connector (11). The side wall of the connector (11) away from the extrusion host (1) is provided with a plurality of first grooves (12). The inner side of the first groove (12) is provided with a slot (13). The first groove (12) is slidably connected to the locking rod (3). The slot (13) is engaged with the locking rod (3).

4. The single-screw extruder die according to claim 3, characterized in that, The outer wall of the connector (11) is also fixedly connected with a number of pneumatic pins (14), the output end of which is engaged with the end of the locking rod (3).

5. The single-screw extruder die according to claim 1, characterized in that, The drive components are set in two groups, and the two groups of drive components are evenly spaced on the outer wall of the extrusion head (2) with the axis of the adjusting cone (26) as the axis.

6. The single-screw extruder die according to claim 5, characterized in that, The driving component is a hydraulic cylinder (28), which is located on the outer wall of the extruder (2) and fixed by a support plate. The output end of the hydraulic cylinder (28) is connected to the sliding sleeve (24).

7. The single-screw extruder die according to claim 6, characterized in that, A transmission rod (23) is provided on the outer wall of the sliding sleeve (24). The end of the transmission rod (23) is connected to the output end of the hydraulic cylinder (28). A connecting rod (25) extends from the inner wall of the sliding sleeve (24) and is connected to the outer wall of the adjusting cone (26).

8. The single-screw extruder die according to claim 1, characterized in that, An extrusion ring (27) is provided on the inner wall of the end of the extrusion head (2) away from the extrusion host (1), and the extrusion ring (27) is matched with the conical surface of the adjusting cone (26).

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