Multi-position fixing sleeve structure of aluminum profile hot extrusion die
Patent Information
- Application Number
- CN202522561109.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-02
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-02
AI Technical Summary
Under high temperature and pressure, the expansion of the aluminum profile hot extrusion die causes an increase in the gap between the die and the sleeve, resulting in die shaking or displacement, which affects the dimensional uniformity and surface quality of the aluminum profile.
A sleeve structure for multi-position fixed aluminum profile hot extrusion die is designed, including a sleeve assembly and a positioning assembly. By adjusting the gap between the die and the sleeve in real time, and using the cooperation of hydraulic oil and springs, the die can be stably supported and positioned.
It significantly improves the dimensional uniformity and surface quality of aluminum profiles, reduces mold wobbling and offset during extrusion, and improves production efficiency and product quality.
Smart Images
Figure CN224926764U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sleeve structure technology, specifically a sleeve structure for multi-position fixing of aluminum profile hot extrusion die. Background Technology
[0002] Aluminum profile hot extrusion die is a key tool used in aluminum profile processing. It is usually installed on an aluminum profile extruder. After heating the aluminum rod to a certain temperature, the aluminum rod is extruded from the die hole under high pressure using the specific shape and structure of the die, thereby forming an aluminum profile with a specific cross-sectional shape and size. The material of this die is usually high-strength, high-temperature resistant alloy steel. Its design and manufacturing precision requirements are very high to ensure that the extruded aluminum profile has stable quality, accurate dimensions, and a smooth surface. It is widely used in construction, transportation, electronics and other fields. The sleeve used in aluminum profile hot extrusion dies is mainly to achieve precise fixation and positioning of the die, ensuring that the die can work stably during the high temperature and high pressure extrusion process. The sleeve can firmly install the die on the extruder, preventing the die from displacement due to uneven force or high temperature deformation during the extrusion process, thereby ensuring the dimensional accuracy and surface quality of the aluminum profile. During the hot extrusion of aluminum profiles, the die expands due to high temperature, which increases the gap between the die and the sleeve. This leads to the die losing stable support in the radial direction. This unstable support causes the die to shake or shift during the extrusion process, resulting in uneven dimensions and reduced surface quality of the aluminum profile. Therefore, a sleeve structure with multi-position fixed aluminum profile hot extrusion die is proposed to address the above problems. Utility Model Content
[0003] The purpose of this utility model is to provide a sleeve structure for fixing aluminum profile hot extrusion dies in multiple positions, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: A sleeve structure for multi-position fixing of aluminum profile hot extrusion die includes a sleeve assembly and an extrusion die. A positioning component is fixedly connected to the upper end of the sleeve assembly, and a sleeve fixing component is fixedly connected to the bottom end of the positioning component. The sleeve fixing component includes an upper sleeve, a solid column and a compression spring are fixedly connected to the top end of the upper sleeve, the outer side of the solid column slides inside a column groove in the cylinder shell, a rubber sealing ring is fixedly connected to the outer side of the solid column, a side plate is fixedly connected to the left end of the upper sleeve, a cover plate is fixedly connected to the top end of the cylinder shell, a communication port is opened on the inner side of the cover plate, a solenoid valve is fixedly connected to the top end of the cover plate, a rubber sleeve is fixedly connected to the valve port at the top end of the solenoid valve, and an oil storage cavity is opened on the inner side of the rubber sleeve.
[0005] As a further optimization of this utility model, the sleeve assembly includes a lower sleeve seat, the inner side of which is provided with a sleeve groove, the lower sleeve seat is fitted with an extrusion mold through the sleeve groove, and a stop block for blocking the extrusion mold is provided at the left end of the lower sleeve seat.
[0006] As a further optimization of this utility model, the lower sleeve seat has a reserved screw hole at its upper end, and the reserved screw hole is fixedly connected to the cover plate by screws.
[0007] As a further optimization of this utility model, the upper sleeve has a pressure groove at its lower end, and the upper sleeve is pressed and fixed to the upper end of the extrusion die through the pressure groove. The upper sleeve has guide grooves at both its front and rear ends, and the upper sleeve slides inside the sleeve groove through the guide groove. The left end of the upper sleeve is in contact with the stop block.
[0008] As a further optimization of this utility model, the bottom end of the solid column is located in the middle of the upper surface of the upper sleeve, and the top end of the cylinder shell is located in the middle of the lower surface of the cover plate.
[0009] As a further optimization of this utility model, a movable gap is left between the bottom end of the cylindrical shell and the top end of the upper sleeve, and the top end of the compression spring is fixedly connected to the bottom end of the cover plate.
[0010] As a further optimization of this utility model, the span between the front and rear ends of the side plate is 0.8 times the length between the front and rear ends of the upper sleeve, the side plate is located between the two stops and fits against the stops, and the side plate is used to block the extrusion die.
[0011] As a further optimization of this utility model, the column groove, the connecting port, and the oil storage cavity are all filled with hydraulic oil, the rubber sealing ring seals the solid column and the shell, and the column groove is connected to the connecting port.
[0012] Compared with the prior art, the beneficial effects of this utility model are: In this invention, the device adjusts the gap between the mold and the sleeve in real time through the sleeve fixing component and the positioning component, which significantly reduces the gap increase caused by the thermal expansion of the mold and effectively prevents the mold from shaking or shifting during the extrusion process. This ensures that the sleeve maintains stable support for the mold. This stable support significantly improves the dimensional uniformity and surface quality of the aluminum profile, effectively solving the problem of uneven aluminum profile dimensions and decreased surface quality caused by the increased gap between the mold and the sleeve in the prior art, thereby improving production efficiency and product quality. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2This is a schematic diagram of the extrusion die structure of this utility model; Figure 3 This is a cross-sectional structural diagram of the sleeve assembly of this utility model; Figure 4 This is a cross-sectional structural diagram of the positioning component of this utility model; Figure 5 This is a cross-sectional structural diagram of the sleeve fastening assembly of this utility model; Figure 6 This is a schematic diagram of the cylindrical shell structure of this utility model.
[0014] In the diagram: 1. Sleeve assembly; 11. Lower sleeve seat; 12. Sleeve groove; 13. Reserved screw hole; 14. Stop block; 2. Extrusion die; 3. Sleeve fastening assembly; 31. Upper sleeve; 32. Pressure groove; 33. Guide groove; 34. Solid column; 35. Cylinder shell; 36. Column groove; 37. Compression spring; 38. Rubber sealing ring; 39. Side plate; 4. Positioning component; 41. Cover plate; 42. Connecting port; 43. Screw; 44. Solenoid valve; 45. Rubber sleeve; 46. Oil reservoir. Detailed Implementation
[0015] 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.
[0016] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0017] Please see Figures 1-6 This utility model provides a technical solution: A sleeve structure for multi-position fixed aluminum profile hot extrusion die includes a sleeve assembly 1 and an extrusion die 2. A positioning component 4 is fixedly connected to the upper end of the sleeve assembly 1, and a sleeve fixing component 3 is fixedly connected to the bottom end of the positioning component 4. The sleeve fixing component 3 includes an upper sleeve 31. A solid column 34 and a compression spring 37 are fixedly connected to the top end of the upper sleeve 31. The outer side of the solid column 34 slides inside a column groove 36 opened in the cylinder shell 35. A rubber sealing ring 38 is fixedly connected to the outer side of the solid column 34. A side plate 39 is fixedly connected to the left end of the upper sleeve 31. A cover plate 41 is fixedly connected to the top end of the cylinder shell 35. A communication port 42 is opened on the inner side of the cover plate 41. A solenoid valve 44 is fixedly connected to the top end of the cover plate 41. A rubber sleeve 45 is fixedly connected to the valve port at the top end of the solenoid valve 44. An oil storage chamber 46 is opened on the inner side of the rubber sleeve 45.
[0018] As a further implementation of this solution, the sleeve assembly 1 includes a lower sleeve seat 11, with a sleeve groove 12 opened on the inner side of the lower sleeve seat 11. The extrusion die 2 is fitted onto the lower sleeve seat 11 through the sleeve groove 12. A stop block 14 for blocking the extrusion die 2 is provided at the left end of the lower sleeve seat 11. Through the above arrangement, the sleeve groove 12 opened on the inner side of the lower sleeve seat 11 fits onto the extrusion die 2, and the stop block 14 blocks the extrusion die 2, thus achieving the initial fixation and positioning of the extrusion die 2, providing a foundation for subsequent multi-position fixation, helping to improve the stability and reliability of die installation, and thus providing a prerequisite for the stable extrusion of aluminum profiles. As a further implementation of this solution, a reserved screw hole 13 is provided at the upper end of the lower sleeve seat 11. The reserved screw hole 13 is fixedly connected to the cover plate 41 by screws 43. Through the above setting, the reserved screw hole 13 at the upper end of the lower sleeve seat 11 is fixedly connected to the cover plate 41 by screws 43, which enhances the connection stability between the lower sleeve seat 11 and the cover plate 41, thereby providing a basis for the positioning of the sleeve fastening component 3. As a further implementation of this solution, the lower end of the upper sleeve 31 is provided with a pressure groove 32, and the upper sleeve 31 is pressed and fixed to the upper end of the extrusion die 2 through the pressure groove 32. The front and rear ends of the upper sleeve 31 are provided with guide grooves 33, and the upper sleeve 31 slides inside the sleeve groove 12 through the guide grooves 33. The left end of the upper sleeve 31 is in contact with the stop block 14. Through the above settings, the pressure groove 32 at the lower end of the upper sleeve 31 is pressed and fixed to the upper end of the extrusion die 2, and the guide grooves 33 at the front and rear ends of the upper sleeve 31 slide inside the sleeve groove 12. In addition, the left end of the sleeve 31 is in contact with the stop block 14. This multi-position fixing method constrains the extrusion die 2 from multiple directions, which greatly improves the fixing stability of the extrusion die 2. During the hot extrusion process, even if the die 2 expands due to high temperature, it can effectively prevent it from shaking or shifting, thereby significantly improving the dimensional uniformity and surface quality of the aluminum profile. It effectively solves the problem of uneven aluminum profile size and decreased surface quality caused by the increased gap between the die and the sleeve in the prior art. As a further implementation of this scheme, the bottom end of the solid column 34 is located in the middle of the upper surface of the upper sleeve 31, and the top end of the cylinder shell 35 is located in the middle of the lower surface of the cover plate 41. Through the above arrangement, the structural balance and stability of the entire device are ensured, providing a strong structural guarantee for the precise adjustment of the gap between the mold and the sleeve. As a further implementation of this solution, a movable gap is left between the bottom end of the cylinder shell 35 and the top end of the upper sleeve 31, and the top end of the compression spring 37 is fixedly connected to the bottom end of the cover plate 41. Through the above settings, the movable gap between the bottom end of the cylinder shell 35 and the top end of the upper sleeve 31, and the fixed connection between the top end of the compression spring 37 and the bottom end of the cover plate 41, enable the device to be flexibly adjusted and moved during operation. When it is necessary to adjust the gap between the mold and the sleeve, the cylinder shell 35 and the upper sleeve 31 can move relative to each other through the drive of the compression spring 37, thereby realizing the real-time extrusion and positioning of the extrusion mold 2, effectively reducing the phenomenon of increased gap caused by the thermal expansion of the mold, ensuring that the sleeve maintains stable support for the mold, and further improving the dimensional accuracy and surface quality of the aluminum profile. As a further implementation of this solution, the span between the front and rear ends of the side plate 39 is 0.8 times the length between the front and rear ends of the upper sleeve 31. The side plate 39 is located between the two stops 14 and fits against the stops 14. The side plate 39 is used to block the extrusion die 2. Through the above settings, the specific size and position of the side plate 39 can effectively block the extrusion die 2, further enhancing the fixed stability of the extrusion die 2. During the hot extrusion process, the tight fit between the side plate 39 and the stops 14 can better prevent the extrusion die 2 from displaced due to uneven force or high temperature deformation. As a further implementation of this solution, the groove 36, the connecting port 42, and the oil storage cavity 46 are all filled with hydraulic oil. The rubber sealing ring 38 seals the solid column 34 and the cylindrical shell 35. The groove 36 is connected to the connecting port 42. Through the above settings, the hydraulic oil filled in the groove 36, the connecting port 42, and the oil storage cavity 46, as well as the seal between the solid column 34 and the cylindrical shell 35 by the rubber sealing ring 38, enable the device to achieve real-time adjustment and precise control of the gap between the mold and the sleeve through the pressure of the hydraulic oil. This hydraulic drive method is not only flexible in adjustment and rapid in response, but also provides stable support force, effectively preventing the mold from shaking or shifting during the extrusion process.
[0019] Workflow: When fixing the extrusion die 2, place the extrusion die 2 inside the groove 12 opened in the lower sleeve seat 11. The shape of the groove 12 near the lower end matches the shape of the lower part of the extrusion die 2. In this way, after the extrusion die 2 is installed inside the groove 12, the lower part of the extrusion die 2 will fit tightly with the groove 12. At the same time, the left end of the extrusion die 2 fits tightly with the right side of the stop block 14. The sleeve fixing component 3 and the positioning component 4 are integrated structures. The closing of the solenoid valve 44 can prevent the solid column 34 from detaching from the column groove 36. At this time, align the upper sleeve 31 with the upper end of the groove 12 and insert the upper sleeve 31 into the groove 12. At the same time, the guide groove... The guide groove 33 slides inside the sleeve groove 12. The design of the guide groove 33 can prevent the upper sleeve 31 from coming out of the sleeve groove 12. At this time, the pressure groove 32 opened on the upper sleeve 31 is in close contact with the upper part of the extrusion mold 2. At the same time, the side plate 39 is located between the two stops 14. The side plate 39 also blocks the extrusion mold 2. When the bottom end of the cover plate 41 is in contact with the top end of the lower sleeve seat 11, the cover plate 41 and the lower sleeve seat 11 are fixed by screws 43. At this time, the extrusion mold 2 can be fixed. This fixing method forms a fixing of the outer periphery and the left end of the extrusion mold 2. This multi-position fixing method improves the stability of extruding aluminum profiles through the extrusion mold 2. During hot extrusion of aluminum profiles, the end of the extruder is aligned with the right end of the extrusion die 2. The heated aluminum rod is extruded through the extrusion die 2 to form the profile. During hot extrusion, the extrusion die 2 directly contacts the high-temperature aluminum rod, and its temperature rises rapidly. However, the lower sleeve seat 11, being located relatively far outward, heats up relatively slowly, and its temperature rises at a lower rate than that of the extrusion die 2. This temperature difference causes the expansion rate of the extrusion die 2 to be greater than that of the lower sleeve seat 11, thus creating a gap between them. The control solenoid valve 44 opens, and the hydraulic oil inside the rubber sleeve 45 connects to the column groove 36 through the connecting port 42. Through the elastic thrust of the compression spring 37, the bottom end of the upper sleeve 31 is tightly fitted to the top end of the extrusion die 2. This achieves the effect of downward pressing of the extrusion die 2, thereby improving the tightness between the extrusion die 2 and the upper sleeve 31 and the lower sleeve seat 11, and significantly reducing the gap between the extrusion die 2 and the lower sleeve seat 11 and the upper sleeve 31. When the solenoid valve 44 is closed, the hydraulic oil inside the column groove 36 cannot flow, thus achieving the effect of positioning the upper sleeve 31. This method can adjust the gap between the extrusion die 2 and the sleeve in real time, significantly reducing the phenomenon of increased gap between the die and the sleeve due to thermal expansion of the extrusion die 2, as well as the shaking or displacement during the extrusion process, thereby ensuring that the sleeve maintains stable support for the extrusion die 2, and improving the dimensional uniformity and surface quality of the aluminum profile.
[0020] 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. A sleeve structure for multi-position fixed aluminum profile hot extrusion die, comprising a sleeve assembly (1) and an extrusion die (2), characterized in that: The upper end of the sleeve assembly (1) is fixedly connected to a positioning component (4), and the lower end of the positioning component (4) is fixedly connected to a sleeve fastening component (3). The sleeve assembly (3) includes an upper sleeve (31), a solid column (34) and a compression spring (37) are fixedly connected to the top of the upper sleeve (31), the outer side of the solid column (34) slides inside the column groove (36) opened in the cylindrical shell (35), a rubber sealing ring (38) is fixedly connected to the outer side of the solid column (34), and a side plate (39) is fixedly connected to the left end of the upper sleeve (31). The top of the shell (35) is fixedly connected to a cover plate (41), and a communication port (42) is opened on the inner side of the cover plate (41). A solenoid valve (44) is fixedly connected to the top of the cover plate (41), and a rubber sleeve (45) is fixedly connected to the valve port at the top of the solenoid valve (44). An oil storage chamber (46) is opened on the inner side of the rubber sleeve (45).
2. The sleeve structure for multi-position fixing of aluminum profile hot extrusion die according to claim 1, characterized in that: The sleeve assembly (1) includes a lower sleeve seat (11), and a sleeve groove (12) is provided on the inner side of the lower sleeve seat (11). The lower sleeve seat (11) is fitted with an extrusion mold (2) through the sleeve groove (12). A stop block (14) for blocking the extrusion mold (2) is provided at the left end of the lower sleeve seat (11).
3. The sleeve structure for multi-position fixing of aluminum profile hot extrusion die according to claim 2, characterized in that: The lower sleeve seat (11) has a reserved screw hole (13) at its upper end, and the reserved screw hole (13) is fixedly connected to the cover plate (41) by screws (43).
4. The sleeve structure for multi-position fixing of aluminum profile hot extrusion die according to claim 1, characterized in that: The upper sleeve (31) has a pressure groove (32) at its lower end. The upper sleeve (31) is pressed and fixed to the upper end of the extrusion mold (2) through the pressure groove (32). The upper sleeve (31) has guide grooves (33) at both its front and rear ends. The upper sleeve (31) slides inside the sleeve groove (12) through the guide groove (33). The left end of the upper sleeve (31) is in contact with the stop block (14).
5. The sleeve structure for multi-position fixing of aluminum profile hot extrusion die according to claim 1, characterized in that: The bottom end of the solid column (34) is located in the middle of the upper surface of the upper sleeve (31), and the top end of the shell (35) is located in the middle of the lower surface of the cover plate (41).
6. The sleeve structure for multi-position fixing of aluminum profile hot extrusion die according to claim 1, characterized in that: There is a movable gap between the bottom end of the cylindrical shell (35) and the top end of the upper sleeve (31), and the top end of the compression spring (37) is fixedly connected to the bottom end of the cover plate (41).
7. The sleeve structure for multi-position fixing of aluminum profile hot extrusion die according to claim 1, characterized in that: The span between the front and rear ends of the side plate (39) is 0.8 times the length between the front and rear ends of the upper sleeve (31). The side plate (39) is located between and fits against the two stops (14). The side plate (39) is used to block the extrusion die (2).
8. The sleeve structure for multi-position fixing of aluminum profile hot extrusion die according to claim 1, characterized in that: The column groove (36), the connecting port (42) and the oil storage chamber (46) are all filled with hydraulic oil. The rubber sealing ring (38) seals the solid column (34) and the cylinder shell (35). The column groove (36) is connected to the connecting port (42).