A die structure for an extruder

Abstract

The utility model discloses a die structure for extruder, including split material subassembly, the inside installation of split material subassembly has cooling assembly, and cooling assembly includes first water inlet pipe, cooling cavity, split ring, closed baffle, blocking spring and drain pipe, the water outlet of first water inlet pipe is connected with cooling cavity, and the inside installation of cooling cavity has split ring, the left side of split ring is provided with closed baffle. This die structure for extruder, compared with the existing ordinary die structure, the cooling structure of this equipment has the effect of partition, can form the stepped type cooling, makes the cooling effect of coolant maximization, and because of carrying out regional cooling, the area of each region is smaller, can make the temperature of each region more uniform, thereby avoid the situation that the temperature is uneven when cooling, influence the work of equipment, and the equipment also has the elastic pushing effect to the connecting place, avoids the situation that the connecting place appears the material leakage.

Description

Technical Field

[0001] This utility model relates to the field of extruder accessories technology, specifically a die head structure for an extruder. Background Technology

[0002] The die head structure of an extruder refers to the core component system installed at the end of the extruder, which is used to form the continuously flowing melt after it has been melted and plasticized by the screw into a solid semi-finished product or finished product according to a preset shape (such as pipe, sheet, profile, film, etc.). Its essence is to realize the key transformation unit of "melt → product with specific cross-sectional shape" through physical structural constraints and process parameter control.

[0003] Most existing die head structures are designed with water cooling. However, liquids have a certain gravity, which inevitably leads to better cooling at the lower end during operation. This results in uneven cooling distribution, which can negatively impact the material and fail to meet user needs. To address this, we propose technological innovations based on existing die head structures. Utility Model Content

[0004] The purpose of this invention is to provide a die head structure for an extruder, so as to solve the problem mentioned in the background art that the general structure cannot well meet people's usage needs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a die head structure for an extruder, comprising a material distribution assembly, wherein a cooling assembly is installed inside the material distribution assembly, and the cooling assembly includes a first water inlet pipe, a cooling chamber, a dividing ring, a sealing baffle, a blocking spring, and a drain pipe. The outlet end of the first water inlet pipe is connected to the cooling chamber, and a dividing ring is installed inside the cooling chamber. A sealing baffle is provided on the left side of the dividing ring, and a blocking spring is installed on the left side of the sealing baffle. A drain pipe is installed at the left end of the cooling chamber.

[0006] Furthermore, the material distribution assembly includes a material distribution cylinder, a temperature guiding plate, a central block, and a diversion pipe. The temperature guiding plate is installed inside the material distribution cylinder, and the central block is installed inside the temperature guiding plate. A diversion pipe is provided in the central block.

[0007] Furthermore, a feeding component is installed on the left side of the material distribution component, and a discharging component is installed on the right side of the material distribution component. A cooling component is provided at the discharge point of the discharging component, and an installation component is installed around the discharging component.

[0008] Furthermore, the discharge assembly includes a discharge head, a discharge pipe, a forming head, and a forming cavity, wherein the discharge head has a discharge pipe inside, the end of the discharge head is fitted with a forming head, and the forming head has a forming cavity outside the forming head.

[0009] Furthermore, the cooling assembly includes a cooling pipe and a connector, and the inlet of the cooling pipe is connected to the connector.

[0010] Furthermore, the feeding assembly includes a feeding head and a feeding pipe, and the feeding head has a feeding pipe inside.

[0011] Furthermore, the mounting assembly includes a fixing block, a push spring, and a mounting bolt, with the push spring mounted on the right side of the fixing block and the mounting bolt installed inside the push spring.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The cooling structure of the device has a zoning effect, which can form a stepped cooling, maximizing the cooling effect of the coolant. At the same time, since the cooling is carried out in zones, the area of ​​each zone is small, which can make the temperature of each zone more uniform, thereby avoiding uneven temperature during cooling and affecting the operation of the device. The device also has an elastic pushing effect on the connection, preventing material leakage at the connection. 1. This utility model relies on the elastic effect of the blocking spring to block the closed baffle to a certain extent, thus blocking the flow of liquid. This allows the liquid inside the cooling chamber to fill one area first before reaching a certain pressure to push open the closed baffle and fill the next area. This creates a stepped change in the cooling structure of the equipment and ensures that the temperature of each area is more uniform, which facilitates stable condensation of the equipment. 2. This utility model relies on the elastic structure formed by the fixed block, the pushing spring and the mounting bolt to push the discharge head effectively, so that the discharge pipe can be well connected with the diversion pipe, facilitating the flow of materials and preventing materials from leaking out from the connection between the central block and the discharge head. Attached Figure Description

[0013] Figure 1 This is a schematic cross-sectional view of the present invention. Figure 2 This is a three-dimensional structural diagram of the material distribution component of this utility model; Figure 3 This is a schematic diagram of the material distribution component of this utility model from the right side. Figure 4 This is a schematic diagram of the left side of the material discharge assembly of this utility model; Figure 5 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0014] In the diagram: 2. Feeding assembly; 201. Feeding head; 202. Feeding pipe; 3. Distributing assembly; 301. Distributing cylinder; 302. Temperature guiding plate; 303. Center block; 304. Diversion pipe; 4. Cooling assembly; 401. First water inlet pipe; 402. Cooling chamber; 403. Dividing ring; 404. Sealing baffle; 405. Blocking spring; 406. Drain pipe; 5. Discharge assembly; 501. Discharge head; 502. Discharge pipe; 503. Forming head; 504. Forming chamber; 6. Cooling assembly; 601. Cooling pipe; 602. Connector; 7. Mounting assembly; 701. Fixing block; 702. Push spring; 703. Mounting bolt. Detailed Implementation

[0015] like Figure 1 As shown, a die head structure for an extruder includes a material distribution assembly 3. A cooling assembly 4 is installed inside the material distribution assembly 3. The cooling assembly 4 includes a first water inlet pipe 401, a cooling chamber 402, a dividing ring 403, a sealing baffle 404, a blocking spring 405, and a drain pipe 406. The outlet end of the first water inlet pipe 401 is connected to the cooling chamber 402. The dividing ring 403 is installed inside the cooling chamber 402. A sealing baffle 404 is provided on the left side of the dividing ring 403. A blocking spring 405 is installed on the left side of the sealing baffle 404. A drain pipe 406 is installed at the left end of the cooling chamber 402. The first inlet pipe 401 delivers coolant to the cooling chamber 402. The coolant quickly fills the first area of ​​the cooling chamber 402. Once the first area is full, the hydraulic pressure increases, pushing the sealing baffle 404 and compressing the blocking spring 405. The liquid then fills the second area, and so on, until all areas of the cooling chamber 402 are filled. Finally, the used coolant is discharged from the drain pipe 406. The coolant is at its lowest temperature when it enters the first area. The material has already been cooled by passing through the previous areas, so its temperature is the lowest in the material distribution assembly 3. Thus, although the temperature decreases during material flow, the coolant temperature in each area also decreases, maintaining a consistent and good temperature difference between the material and the coolant, thereby maximizing the cooling effect.

[0016] Relying on the elastic effect of the blocking spring 405, the closed baffle 404 will have a certain blocking effect, which will block the flow of liquid. This will allow the liquid inside the cooling chamber 402 to fill one area first before reaching a certain pressure to push open the closed baffle 404 and then fill the next area. This creates a stepped change in the cooling structure of the equipment and ensures that the temperature of each area is more uniform, which is conducive to stable condensation of the equipment.

[0017] like Figure 1 , Figure 2 and Figure 3 As shown, the material distribution assembly 3 includes a material distribution cylinder 301, a temperature guiding plate 302, a central block 303, and a diversion pipe 304. The temperature guiding plate 302 is installed inside the material distribution cylinder 301, the central block 303 is installed inside the temperature guiding plate 302, and the diversion pipe 304 is opened in the central block 303. Multiple diversion pipes 304 are installed on the central block 303. The material first enters the distribution cylinder 301, then is diverted through the diversion pipes 304, and then enters the discharge assembly 5 for operation. The temperature guide plate 302 is made of a high thermal conductivity material, which facilitates the cooling chamber 402 to cool the material well.

[0018] like Figure 1 , Figure 4 and Figure 5 As shown, a feeding component 2 is installed on the left side of the material distribution component 3, and a discharge component 5 is installed on the right side of the material distribution component 3. A cooling component 6 is provided at the discharge point of the discharge component 5, and an installation component 7 is installed around the discharge component 5.

[0019] like Figure 1 As shown, the discharge assembly 5 includes a discharge head 501, a discharge pipe 502, a forming head 503 and a forming cavity 504. The discharge head 501 has a discharge pipe 502 inside, the end of the discharge head 501 is equipped with a forming head 503, and the forming head 503 has a forming cavity 504 outside. The forming cavity 504 is the cavity between the forming head 503 and the discharge head 501. Different shapes of discharge head 501 and forming head 503 will form different shapes of forming cavities 504. The shape of the forming cavity 504 is the shape of the processed product. For example, if it is tubular, the forming cavity 504 will have a hollow cylindrical part removed. The discharge pipe 502 is connected to the diversion pipe 304 to facilitate the flow of material to the forming cavity 504 for forming.

[0020] like Figure 1 As shown, the cooling assembly 6 includes a cooling pipe 601 and a connector 602, and the inlet of the cooling pipe 601 is connected to the connector 602. The connector 602 can connect the cooling pipe 601 to the first water inlet pipe 401, thereby facilitating the distribution of coolant into the cooling pipe 601 for the final cooling and shaping of the material.

[0021] like Figure 1 As shown, the feeding assembly 2 includes a feeding head 201 and a feeding pipe 202, and the feeding head 201 has a feeding pipe 202 inside; When the feed head 201 is connected to the extruder, it is necessary to ensure that there are no gaps at the connection so that all the material enters the feed pipe 202 for conveying and to prevent the material from leaking out from the connection between the feed head 201 and the extruder.

[0022] like Figure 5 As shown, the mounting assembly 7 includes a fixing block 701, a push spring 702 and a mounting bolt 703, and the push spring 702 is mounted on the right side of the fixing block 701, and the mounting bolt 703 is mounted inside the push spring 702. By relying on the fixed block 701 to push the elastic structure formed between the spring 702 and the mounting bolt 703, the discharge head 501 can be pushed effectively, so that the discharge pipe 502 can be well connected with the diversion pipe 304, which facilitates the flow of materials and prevents materials from leaking out from the connection between the central block 303 and the discharge head 501.

[0023] Working principle: When using the die head structure for the extruder, the feed head 201 is first connected to the extruder, and the feed pipe 202 is connected to the discharge port of the extruder. The material extruded by the extruder will enter the diversion pipe 304 through the feed pipe 202, and then be transported to the discharge pipe 502 by the diversion pipe 304. Finally, it will be formed and extruded from the forming cavity 504. During the extrusion operation, the first water inlet pipe 401 will continuously supply liquid to the cooling cavity 402 and the cooling pipe 601 to cool the equipment. The cooling water used by the cooling cavity 402 will be discharged from the drain pipe 406.

Claims

1. A die head structure for an extruder, characterized in that, The device includes a material distribution assembly (3), which has a cooling assembly (4) installed inside. The cooling assembly (4) includes a first water inlet pipe (401), a cooling chamber (402), a dividing ring (403), a sealing baffle (404), a blocking spring (405), and a drain pipe (406). The outlet end of the first water inlet pipe (401) is connected to the cooling chamber (402), and the dividing ring (403) is installed inside the cooling chamber (402). A sealing baffle (404) is provided on the left side of the dividing ring (403), and a blocking spring (405) is installed on the left side of the sealing baffle (404). A drain pipe (406) is installed at the left end of the cooling chamber (402).

2. The die head structure for an extruder according to claim 1, characterized in that, The material distribution assembly (3) includes a material distribution cylinder (301), a temperature guiding plate (302), a central block (303), and a diversion pipe (304). The temperature guiding plate (302) is installed inside the material distribution cylinder (301), and the central block (303) is installed inside the temperature guiding plate (302). The diversion pipe (304) is opened in the central block (303).

3. The die head structure for an extruder according to claim 1, characterized in that, The feeding component (2) is installed on the left side of the material distribution component (3), and the discharging component (5) is installed on the right side of the material distribution component (3). A cooling component (6) is provided at the discharge point of the discharging component (5), and an installation component (7) is installed around the discharging component (5).

4. The die head structure for an extruder according to claim 3, characterized in that, The discharge assembly (5) includes a discharge head (501), a discharge pipe (502), a forming head (503), and a forming cavity (504). The discharge head (501) has a discharge pipe (502) inside, the end of the discharge head (501) is equipped with a forming head (503), and the forming head (503) is provided with a forming cavity (504) outside the forming head (503).

5. A die head structure for an extruder according to claim 3, characterized in that, The cooling assembly (6) includes a cooling pipe (601) and a connector (602), and the inlet of the cooling pipe (601) is connected to the connector (602).

6. The die head structure for an extruder according to claim 3, characterized in that, The feeding assembly (2) includes a feeding head (201) and a feeding pipe (202), and the feeding head (201) has a feeding pipe (202) inside.

7. A die head structure for an extruder according to claim 3, characterized in that, The mounting assembly (7) includes a fixing block (701), a push spring (702) and a mounting bolt (703), and the push spring (702) is mounted on the right side of the fixing block (701), and the mounting bolt (703) is mounted inside the push spring (702).

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