Plate extrusion die
By designing inclined extrusion holes in the mold, the problem of material marks appearing on the surface of aluminum sheet after oxidation in the extrusion mold was solved, achieving a high-quality processing effect for the sheet.
Patent Information
- Application Number
- CN202422953555.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Existing aluminum sheet extrusion dies are prone to producing oxidized sheets with textured marks during processing, which fails to meet usage requirements.
Design a sheet metal extrusion die, wherein the cross-sectional length direction of the extrusion hole is inclined relative to the cross-sectional length direction of the feed hole, forming a difference in metal flow in the thickness layer, reducing the directionality of the grain structure on the sheet surface, and reducing the risk of material marks after oxidation.
The inclined extrusion holes reduce the risk of material marks appearing on the surface of the board after oxidation, thus improving the overall performance and usability of the board.
Smart Images
Figure CN223518312U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of aluminum plate processing, in particular to a plate extrusion die. BACKGROUND
[0002] Aluminum plate can adopt the mode of hot extrusion to process, some die for aluminum plate extrusion currently, the die body has feeding hole, extrusion hole and discharge hole that communicate in turn, the cross section of feeding hole, extrusion hole and discharge hole are all strip-shaped, and the cross section size of extrusion hole is less than the cross section size of feeding hole, to extrude aluminum raw material into aluminum plate of predetermined size. When aluminum plate extrusion processes, first, the die and aluminum raw material are heated to predetermined temperature, then raw material is inserted into feeding hole by pressure, and aluminum raw material is extruded into aluminum plate of predetermined size through extrusion hole, then is discharged through discharge hole. The current plate extrusion die, the surface of extruded aluminum plate is easy to appear material line after oxidation, sometimes can not satisfy the use demand. SUMMARY
[0003] The utility model discloses at least one of the technical problems in the prior art. To this end, the utility model provides a plate extrusion die, which reduces the risk of material lines appearing on the surface of the extruded plate after oxidation.
[0004] According to the plate extrusion die of the utility model embodiment, the die body has the feeding side and the discharge side, the feeding hole is arranged on the feeding side of the die body, the discharge hole is arranged on the discharge side of the die body, the extrusion hole is arranged in the die body, one end of the extrusion hole is communicated with the feeding hole, the other end is communicated with the discharge hole, the cross section size of the extrusion hole is less than the cross section size of the feeding hole, the hole axis of the feeding hole, the extrusion hole and the discharge hole are collinear, wherein the cross section of the feeding hole and the extrusion hole is strip-shaped, and the cross section length direction of the extrusion hole is inclined relative to the cross section length direction of the feeding hole.
[0005] According to the plate extrusion die of the utility model embodiment, at least the following beneficial effects are obtained: thick plate-shaped raw material is used for hot extrusion, because the cross section length direction of the extrusion hole is inclined relative to the cross section length direction of the feeding hole, the same thickness layer of the plate along the thickness direction is formed by the metal extrusion flow of different thickness layers of the raw material, the material extrusion deformation resistance of the same thickness layer of the plate is different, so that the grain organization of the same thickness layer of the plate has no obvious direction, thereby reducing the risk of material lines appearing on the surface of the extruded plate after oxidation.
[0006] According to some embodiments of the utility model, the angle between the cross section length direction of the extrusion hole and the cross section length direction of the feeding hole is A, and 10°≤A≤45° is met.
[0007] According to some embodiments of the present application, the angle between the cross-sectional length direction of the extrusion hole and the cross-sectional length direction of the feeding hole is A, and A = 20° is satisfied.
[0008] According to some embodiments of the present application, the cross-sectional length direction of the feeding hole is arranged along the horizontal direction.
[0009] According to some embodiments of the present application, the extrusion hole comprises a forming hole section, one end of the forming hole section is communicated to the bottom wall of the feeding hole, and the thickness of the forming hole section gradually decreases in the direction away from the feeding hole.
[0010] According to some embodiments of the present application, the extrusion hole further comprises a shaping hole section, the other end of the forming hole section is connected to one end of the shaping hole section, the other end of the shaping hole section is communicated to the bottom wall of the discharging hole, and the thickness of the shaping hole section is uniformly arranged in the direction away from the feeding hole.
[0011] According to some embodiments of the present application, the forming hole section has two forming side walls along the thickness direction, and the two forming side walls are inclined relative to the hole axis of the extrusion hole.
[0012] According to some embodiments of the present application, the cross-sectional size of the discharging hole is greater than the cross-sectional size of the extrusion hole.
[0013] According to some embodiments of the present application, the discharging hole comprises a first hole section, a second hole section and a third hole section arranged in sequence in the direction away from the extrusion hole, the thickness of the first hole section is less than the thickness of the second hole section, and the thickness of the second hole section is less than the thickness of the third hole section.
[0014] According to some embodiments of the present application, the third hole section has two discharging side walls along the thickness direction, the two discharging side walls are inclined relative to the hole axis of the discharging hole, and the distance between the two discharging side walls gradually increases in the direction away from the extrusion hole.
[0015] Additional aspects and advantages of the present application will be given in part in the following description, and will become apparent from the description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS
[0016] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description, taken in conjunction with the following drawings, in which:
[0017] Figure 1 FIG. 1 is a front view of a schematic diagram of a plate extrusion die according to an embodiment of the present application;
[0018] Figure 2The utility model discloses an embodiment of the utility model discloses an embodiment of the Figure 1 The sectional view along the D-D direction of the schematic diagram of the embodiment of the utility model discloses an embodiment of the
[0019] Figure 3 The utility model discloses an embodiment of the utility model discloses an embodiment of the Figure 2 The local enlarged schematic diagram of the E of the embodiment of the utility model discloses an embodiment of the
[0020] Reference signs:
[0021] Mould body 100, feed side 110, discharge side 120;
[0022] Feed hole 200;
[0023] Discharge hole 300, first hole section 310, second hole section 320, third hole section 330, discharge side wall 331;
[0024] Extrusion hole 400, forming hole section 410, forming side wall 411, shaping hole section 420;
[0025] The cross section length direction B of feed hole, the cross section length direction C of extrusion hole. Specific embodiments
[0026] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as limiting the utility model.
[0027] In the description of the utility model, it is understood that the orientation description, such as the orientation or position relationship of the upper, lower and the like, is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model.
[0028] In the description of the utility model, more refers to two or more. If there is a description of the first, the second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.
[0029] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, communication and the like should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.
[0030] Refer to Figures 1 to 3The utility model discloses a plate extrusion die, including die body 100, feed hole 200, discharge hole 300 and extrusion hole 400. Die body 100 has the feed side 110 and the discharge side 120. The feed hole 200 is arranged at the feed side 110 of die body 100. The discharge hole 300 is arranged at the discharge side 120 of die body 100. The extrusion hole 400 is arranged in the die body 100, and one end of the extrusion hole 400 is communicated with the feed hole 200, and the other end is communicated with the discharge hole 300. The cross section size of the extrusion hole 400 is less than the cross section size of the feed hole 200. The hole axis of the feed hole 200, the extrusion hole 400 and the discharge hole 300 are collinear. Wherein, the cross section of the feed hole 200 and the extrusion hole 400 are all strip-shaped, and the cross section length direction of the extrusion hole 400 is inclined relative to the cross section length direction of the feed hole 200.
[0031] The thick plate raw material is used for hot extrusion. Since the cross section length direction of the extrusion hole 400 is inclined relative to the cross section length direction of the feed hole 200, the same thickness layer of the plate is formed by the metal flow of different thickness layers of the raw material. The material extrusion deformation resistance of the same thickness layer of the plate is different, so that the grain organization of the same thickness layer of the plate has no obvious direction, thereby reducing the risk of material lines on the surface of the extruded plate after oxidation. Generally, the greater the distance F between the edge of the extrusion hole 400 and the side wall of the feed hole 200, the smaller the grain organization of the product at this position. The smaller the distance G between the edge of the extrusion hole 400 and the side wall of the feed hole 200, the greater the grain organization of the product at this position. Since the cross section length direction of the extrusion hole 400 is inclined relative to the cross section length direction of the feed hole 200, the distance between the same side hole wall of the extrusion hole 400 and the feed hole 200 has a gradual change relationship. At this time, the grain organization of the plate along the cross section length direction can present a certain gradual change rule, meet the specific use needs, and the comprehensive performance of the plate is improved.
[0032] Specifically, the cross section of the discharge hole 300 is also strip-shaped, and the cross section length direction of the discharge hole 300 is the same as the cross section length direction of the extrusion hole 400.
[0033] In the embodiment, the angle A between the cross-sectional length direction of the extrusion hole 400 and the cross-sectional length direction of the feeding hole 200 satisfies 10°≤A≤45°. When the angle A is too small, the effect of reducing the material marks after oxidation of the plate by the above method is not obvious enough; when the angle A is too large, the plate with sufficient size cannot be extruded. Therefore, the above-mentioned angle range of the extrusion hole 400 and the feeding hole 200 can process the aluminum plate with a size meeting the use requirements and relatively reduce the degree of material marks on the surface of the extruded plate after oxidation.
[0034] In the embodiment, the angle A between the cross-sectional length direction of the extrusion hole 400 and the cross-sectional length direction of the feeding hole 200 satisfies A=20°. When the angle between the two is 20°, the aluminum plate processed can obviously reduce the degree of material marks after surface oxidation, and the use effect is better. It can be imagined that in other embodiments, the angle A can also be other values, such as 15°, 25°, 30°, 35° or 40°, or other values within the range, which can be configured according to actual needs by those skilled in the art.
[0035] In the embodiment, the cross-sectional length direction of the feeding hole 200 is arranged along the horizontal direction, which is convenient for adapting to conventional extrusion equipment and processing.
[0036] In the embodiment, the extrusion hole 400 includes a forming hole section 410, one end of the forming hole section 410 is communicated to the bottom wall of the feeding hole 200, and the thickness of the forming hole section 410 gradually decreases in the direction away from the feeding hole 200. When the metal enters the forming hole section 410 from the feeding hole 200, it can be subjected to three-way compressive stress, so that the thickness direction of the aluminum plate deforms differently, the deformation of the surface in the thickness direction relatively increases, and the deformation of the internal area relatively decreases, so that the surface in the thickness direction generates recrystallized fine grain structure, and the internal area generates complete recrystallized structure, i.e. the aluminum plate as a whole is recrystallized structure, which can effectively avoid the problems of poor oxidation such as material marks and mottling after oxidation.
[0037] In the embodiment, the extrusion hole 400 further includes a sizing hole section 420, the other end of the forming hole section 410 is butted with one end of the sizing hole section 420, and the other end of the sizing hole section 420 is communicated to the bottom wall of the discharging hole 300. The thickness of the sizing hole section 420 is uniformly arranged in the direction away from the feeding hole 200. When the metal is extruded into a plate with a predetermined size through the forming hole section 410, the plate can realize size sizing in the sizing hole section 420, and then the plate is discharged through the discharging hole 300.
[0038] In embodiments, the profiled hole section 410 has two profiled side walls 411 along the thickness direction, both of which are inclined relative to the hole axis of the extrusion hole 400, so that the thickness of the profiled hole section 410 decreases in the direction away from the feeding hole 200, facilitating the consistency of the pressing effect on both sides of the plate along the thickness direction, so as to extrude a more stable aluminum plate. Specifically, the two profiled side walls 411 are inclined at the same angle relative to the hole axis of the extrusion hole 400, and the extrusion effect is relatively good. In some embodiments, the included angle between the two profiled side walls 411 can be 5° to 30°.
[0039] In embodiments, the cross-sectional size of the discharge hole 300 is larger than that of the extrusion hole 400, so that when the shaped aluminum plate is discharged through the discharge hole 300, the discharge hole 300 is not prone to the risk of die jamming, so that the extrusion process proceeds smoothly.
[0040] In embodiments, the discharge hole 300 includes a first hole section 310, a second hole section 320 and a third hole section 330 arranged in sequence along the direction away from the extrusion hole 400, the thickness of the first hole section 310 is smaller than that of the second hole section 320, and the thickness of the second hole section 320 is smaller than that of the third hole section 330. The discharge hole 300 with the above structure is beneficial to machining the first hole section 310 and the second hole section 320 with relatively deep depths respectively, improves the processability of the mold, and reduces the machining difficulty.
[0041] In embodiments, the third hole section 330 has two discharge side walls 331 along the thickness direction, both of which are inclined relative to the hole axis of the discharge hole 300, and the distance between the two discharge side walls 331 gradually increases in the direction away from the extrusion hole 400. This can further reduce the machining difficulty, making the machining of the discharge hole 300 easier.
[0042] Specifically, along the hole axis direction of the discharge hole 300, the size of the first hole section 310 is smaller than that of the second hole section 320, and the size of the second hole section 320 is smaller than that of the third hole section 330, facilitating the reduction of machining difficulty.
[0043] Specifically, the periphery of the hole bottom of the feeding hole 200 is provided with a fillet, facilitating the extrusion of aluminum raw materials into aluminum profiles.
[0044] Further, the size of the extrusion hole 400 along the left-right direction is H, and the size of the feeding hole 200 along the left-right direction is J. In order to meet the requirements of metal flow and extrusion deformation, it is necessary to satisfy 0.7≤H / J≤0.9, so that the raw materials can relatively easily flow into the extrusion hole 400 for extrusion molding.
[0045] Further, the size of the extrusion hole 400 along the up-down direction is K, and the size of the feeding hole 200 along the up-down direction is L, in order to meet the extrusion metal flow and extrusion deformation requirements, it is necessary to meet 0.6≤K / L≤0.8, at this time, the raw material can relatively easily flow into the extrusion hole 400, and extrusion forming is carried out.
[0046] Specifically, the distance between the lower end of the extrusion hole 400 and the lower side wall of the feeding hole 200 is basically the same as the distance between the upper end of the extrusion hole 400 and the upper side wall of the feeding hole 200. The distance between the left end of the extrusion hole 400 and the left side wall of the feeding hole 200 is also basically the same as the distance between the right end of the extrusion hole 400 and the right side wall of the feeding hole 200.
[0047] Specifically, the plate extrusion die of the utility model is suitable for extrusion processing of metal plates, especially extrusion processing of aluminum plates. It can be understood that other types of metal plates can also be extruded by the above-mentioned plate extrusion die.
[0048] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0049] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, the scope of the utility model is defined by the claims and its equivalents.
Claims
1. A plate extrusion die characterized by, The utility model relates to a kind of extrusion die, including: Mould body (100) has feed side (110) and discharge side (120); Feed hole (200) is arranged in the feed side (110) of the mould body (100); Discharge hole (300) is arranged in the discharge side (120) of the mould body (100); Extrusion hole (400) is arranged in the mould body (100), one end of the extrusion hole (400) is communicated with the feed hole (200), the other end is communicated with the discharge hole (300), the cross-sectional dimension of the extrusion hole (400) is less than the cross-sectional dimension of the feed hole (200), the hole axis of the feed hole (200), the extrusion hole (400) and the discharge hole (300) are collinear; Wherein, the cross section of the feed hole (200) and the extrusion hole (400) are all strip-shaped, the length direction of the cross section of the extrusion hole (400) is inclined relative to the length direction of the cross section of the feed hole (200).
2. The sheet extrusion die of claim 1, wherein: The angle between the length direction of the cross section of the extrusion hole (400) and the length direction of the cross section of the feed hole (200) is A, and satisfies 10 °≤A≤45 °.
3. A plate extrusion die according to claim 1 or 2, characterised in that: The angle between the length direction of the cross section of the extrusion hole (400) and the length direction of the cross section of the feed hole (200) is A, and satisfies A=20 °.
4. The sheet extrusion die of claim 1, wherein: The length direction of the cross section of the feed hole (200) is arranged along horizontal direction.
5. The sheet extrusion die of claim 1, wherein: The extrusion hole (400) includes a shaped hole section (410), one end of the shaped hole section (410) is communicated to the bottom wall of the feed hole (200), and the thickness of the shaped hole section (410) gradually decreases in the direction away from the feed hole (200).
6. The sheet extrusion die of claim 5, wherein: The extrusion hole (400) further includes a shaped hole section (420), the other end of the shaped hole section (410) is butt-jointed with one end of the shaped hole section (420), the other end of the shaped hole section (420) is communicated to the bottom wall of the discharge hole (300), and the thickness of the shaped hole section (420) is uniformly arranged in the direction away from the feed hole (200).
7. The sheet extrusion die of claim 5, wherein: The shaped hole section (410) has two shaped side walls (411) along the thickness direction, and the two shaped side walls (411) are both inclined relative to the hole axis of the extrusion hole (400).
8. The sheet extrusion die of claim 1, wherein: The cross-sectional dimension of the discharge hole (300) is greater than the cross-sectional dimension of the extrusion hole (400).
9. The sheet extrusion die of claim 8, wherein: The discharge hole (300) includes a first hole section (310), a second hole section (320) and a third hole section (330) arranged in sequence in the direction away from the extrusion hole (400), the thickness of the first hole section (310) is less than the thickness of the second hole section (320), and the thickness of the second hole section (320) is less than the thickness of the third hole section (330).
10. The sheet extrusion die of claim 9, wherein: The third hole section (330) has two discharge side walls (331) along the thickness direction, and the two discharge side walls (331) are both inclined relative to the hole axis of the discharge hole (300), and the distance between the two discharge side walls (331) gradually increases in the direction away from the extrusion hole (400).