Haff machine head clamping frame
By designing a split die head clamping frame and utilizing a pneumatic mechanism to achieve a reliable connection between the extruder die head and the die, the problem of frequent die replacement under high temperature and high pressure conditions is solved, thereby improving production efficiency and die life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-04-14
AI Technical Summary
Frequent replacement of the extruder head and die under high temperature and high pressure conditions leads to a shortened die life and low production efficiency.
Design a split extruder head clamping frame, including an annular metal part, handle, hinge bolt, cylinder, support block, connector and elastic element, to realize reliable connection and separation of extruder head and die using a pneumatic mechanism, and add heater and condensation equipment to adapt to high temperature environment.
It effectively prevents molten plastic leakage, reduces mold replacement frequency, extends mold life, and improves production efficiency.
Smart Images

Figure CN224116657U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of cable extruders, and in particular relates to a clamping frame for a split extruder head. Background Technology
[0002] When extruder heads are connected to dies, the interface needs to be kept tightly closed under high temperature and high pressure. Long-term exposure to this harsh environment will shorten the service life of the die and require frequent die replacement or maintenance, which will affect the work process and greatly reduce production efficiency. Summary of the Invention
[0003] Technical Solution: To solve the above-mentioned technical problems, this utility model aims to improve the structure of the extruder head and die connection, prevent leakage of molten plastic, facilitate disassembly, and greatly improve work efficiency. Furthermore, it provides a split extruder head clamping frame, including an annular metal part, handles, a hinged bolt, a cylinder, a support block, and a connector. The annular metal part is a ring structure consisting of multiple metal blocks that can be detachably installed via a connecting block. One side is detachably connected to the extruder head, and the other side has an opening at the top, allowing two adjacent metal blocks to be movably installed via a hinged bolt. There are two handles installed on the surfaces of the two metal blocks with the top opening. The cylinder is connected to the support block, and the support block is installed at the bottom of the annular metal part via the connector.
[0004] As an improvement, an elastic element is also included, which is installed on the outer wall of the connector.
[0005] As an improvement, the annular metal component comprises three metal blocks. The two upper metal blocks have an open structure and are detachably connected by hinge bolts installed on the outer portions of the metal blocks. The lower end consists of one metal block, and each block is connected to the others by a connecting block to form an annular structure. Preferably, the metal blocks are split metal blocks.
[0006] As an improvement, a heater is also included, which is mounted on the annular metal part.
[0007] As an improvement, a hose is also included, mounted at the bottom of the annular metal piece, for connecting to external condensing equipment.
[0008] As an improvement, the cylinder is a square cylinder connected to a three-position four-way valve.
[0009] Beneficial effects: The device proposed in this invention, by adding a clamping frame between the extruder die head and the mold, and utilizing the pneumatic mechanism of the clamping frame to achieve opening and closing, effectively overcomes the high temperature and high pressure environment encountered during the die feeding process, significantly reducing the technical difficulties of shortened service life and increased costs caused by frequent die replacements. Furthermore, the device is ingeniously designed, and the installation and disassembly process is simple and quick, greatly improving production efficiency. Attached Figure Description
[0010] Figure 1 This is a side view of the clamping frame of this utility model.
[0011] Figure 2 This is a schematic diagram of the clamping frame of this utility model.
[0012] In the diagram: 1. Ring-shaped metal part; 2. Handle; 3. Hinged bolt; 4. Cylinder; 5. Support block; 6. Connector; 7. Elastic element; 8. Heater; 9. Hose; 10. Pressure regulating filter; 11. Metal block; 12. Connecting block; 13. Three-position four-way valve. Detailed Implementation
[0013] The specific embodiments of this utility model will be described in further detail below with reference to the examples. These examples are used to illustrate this utility model, but are not intended to limit its scope.
[0014] See Figure 1 The present invention relates to a clamping frame for a split extruder head, comprising an annular metal component 1, a handle 2, a hinge bolt 3, a cylinder 4, a support block 5, and a connector 6. The annular metal component 1 is an annular structure consisting of multiple metal blocks 11 that can be detachably installed via a connecting block 12. One side is detachably connected to the extruder head, and the other side has an open top, through which two adjacent metal blocks 11 are movably installed via a hinge bolt 3. There are two handles 2, which are installed on the surfaces of the two metal blocks 11 with the open top. The cylinder 4 is connected to the support block 5, and the support block 5 is installed at the bottom of the annular metal component 1 via the connector 6.
[0015] Furthermore, it also includes an elastic element 7, preferably a spring, installed on the outer wall of the connector 6. The annular metal part 1 includes three metal blocks 11. The two upper metal blocks 11 have an open structure and are detachably connected by hinge bolts 3 installed on the outer portion of the metal blocks 11. The lower end has one metal block 11, and each is connected by a connecting block 12 to form an annular structure.
[0016] It also includes heaters 8, mounted on the annular metal part 1, which heat the metal rings to the same temperature as the die head mold. Three cylindrical heaters are inserted into the three metal rings respectively. It also includes hoses 9, mounted on the bottom of the annular metal part 1, for connecting to external condensation equipment. The cylinder 4 is a square cylinder connected to a three-position four-way valve 13. The three-position four-way valve 13 serves as a manual switch, controlling the cylinder's lifting and lowering. The three-position four-way valve is mounted on the front panel of the extruder for easy operation.
[0017] Furthermore, it also includes a pressure regulating filter 10, installed inside the extruder cover, used to filter compressed air and adjust the air pressure to control the cylinder tension and pressure.
[0018] Working principle: When disassembling the die head mold, first loosen the locking nut and hinge bolt 3, then press the three-position four-way valve to lower the cylinder, so that the annular half metal block is separated from the extruder and the die head.
[0019] When installing the die head mold, lift the three-position four-way valve to make the cylinder lift the round half metal block, and then tighten the snap bolt and lock nut to make the extruder and die head firmly connected.
[0020] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A clamping bracket for a splitter head, characterized in that: The device includes an annular metal part (1), a handle (2), a hinge bolt (3), a cylinder (4), a support block (5), and a connector (6). The annular metal part (1) is an annular structure in which multiple metal blocks (11) are detachably installed through a connector (12). One side is detachably connected to the extruder head, and the other side has an opening at the top, through which two adjacent metal blocks (11) are movably installed. There are two handles (2), which are installed on the surfaces of the two metal blocks (11) with the opening at the top. The cylinder (4) is connected to the support block (5), and the support block (5) is installed at the bottom of the annular metal part (1) through the connector (6).
2. The clamping bracket for the splitter head according to claim 1, characterized in that: It also includes an elastic element (7) installed on the outer side wall of the connector (6).
3. The clamping bracket for the splitter head according to claim 1, characterized in that: The annular metal part (1) includes three metal blocks (11). The two upper metal blocks (11) are open and can be detachably connected by hinge bolts (3) installed on the outer part of the metal blocks (11). The lower part is a metal block (11). They are all connected by a connecting block (12) to form an annular structure.
4. The clamping bracket for the splitter head according to claim 1, characterized in that: It also includes a heater (8), which is mounted on the annular metal part (1).
5. The clamping bracket for the splitter head according to claim 1, characterized in that: It also includes a hose (9) installed at the bottom of the annular metal part (1) for connecting to an external condensing device.
6. The clamping bracket for the splitter head according to claim 1, characterized in that: The cylinder (4) is a square cylinder and is connected to a three-position four-way valve.