Aluminum frame extrusion die with independent feeding and double outlets

Abstract

The present invention relates to the technical field of extrusion dies, and discloses an independently fed single-die double-outlet aluminum frame extrusion die, comprising an upper die, a lower die and a protective seat, wherein an upper die male head is provided at one end of the upper die, and four diversion holes are circumferentially provided on the outer sides of the two upper die male heads, and a diversion bridge is provided between two adjacent diversion holes; two independent lower die welding cavities are provided in the lower die, and a discharge port is provided at the bottom end of each lower die welding cavity; the protective seat is installed at the bottom end of the lower die, and two supporting grooves are provided in the protective seat, and a water cavity is provided on the inner side of the protective seat, and the water cavity covers the outer side of the supporting groove. This die follows the design concept of "symmetrical diversion, separate control", and two profiles are respectively diverted and controlled by the diversion holes of the upper die, and at the same time, the two profiles are respectively fused by two independent welding chambers of the lower die. During extrusion, the extrusion force is symmetrical, the aluminum flow is evenly distributed, and the extrusion speed of the two profiles is consistent, which can fundamentally improve the yield rate and production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of extrusion dies, in particular to an independently fed one-die double-outlet aluminum frame extrusion die. Background Art

[0002] Under the background of "3060" carbon peak and carbon neutrality, photovoltaic power generation will become an important supplier of clean energy with broad prospects. As an important part of photovoltaic power generation system, aluminum alloy frame has huge market demand. At present, in order to increase production, aluminum profile manufacturers in the industry use 800T---1450T larger extruders to produce aluminum frames with one mold and two outputs. The problem is that due to the mismatch between the extrusion ratio of the larger extruder and the smaller cross-sectional area of ​​the aluminum frame, the aluminum frame products produced have black lines on the surface after oxidation, which seriously affects the quality of the aluminum frame products. The existing photovoltaic aluminum frame mold, the one-mold double-out scheme is mostly arranged with seven diversion holes. Because the two profiles share a small diversion hole in the middle and share a lower die welding chamber, it is easy to cause the phenomenon that the two profiles cannot be extruded at the same time due to uneven diversion. In addition, because the side of the aluminum profile is thin, it is easy to bend when the side is discharged, which affects the quality of the aluminum profile. Therefore, we propose a one-mold double-out aluminum frame extrusion die with independent feeding to solve the above problems. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings in the prior art and to propose an independent feeding one-mold double-outlet aluminum frame extrusion die.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] An independently fed single-die double-outlet aluminum frame extrusion die comprises an upper die, a lower die and a protective seat, one end of the upper die is provided with two upper die male heads, the outer sides of the two upper die male heads are circumferentially provided with four diverter holes, the diverter holes penetrate through the two ends of the upper die, and a diverter bridge is provided between two adjacent diverter holes;

[0006] The lower die is provided with two independent lower die welding cavities, and the bottom end of each lower die welding cavity is provided with a discharge port;

[0007] The protection seat is installed at the bottom end of the lower mold, and two support grooves are provided in the protection seat, and a water cavity is provided on the inner side of the protection seat, the water cavity covers the outer side of the support groove, and a water pump is provided in the water cavity;

[0008] A mounting seat is provided on one side of the bottom end of the two support grooves, the middle part of the mounting seat is rotatably connected to the protection seat through a rotating shaft, and adjusting screws are provided on both sides of the mounting seat, and two mutually parallel squeezing rollers are rotatably installed on one side of the mounting seat close to the support groove, a cavity is provided inside the squeezing roller, and one end of the squeezing roller is connected to the output end of the water pump, and a plurality of blocking blocks are inserted on the outer wall of the squeezing roller, the blocking blocks are slidably connected to the squeezing roller, and a spring is provided at one end of the blocking block located inside the squeezing roller.

[0009] Preferably, the upper die and the lower die are provided with matching stoppers at one end edge.

[0010] Preferably, the mating ends of the upper die and the lower die are both provided with a plurality of positioning pins and fixing screws.

[0011] Preferably, the number of the positioning pins and the fixing screws are two to five, and the positioning pins and the fixing screws are matched.

[0012] Preferably, a graphite ring is installed at the bottom of the discharge port, and the graphite ring is coated on the discharge port.

[0013] Preferably, a water inlet is provided on one side of the water cavity, and a connecting seat is provided on the water inlet.

[0014] Preferably, the number of the blocking blocks is ten to twenty, and the outer ends of the blocking blocks are arranged in an arc shape.

[0015] Preferably, the protection seat is fixedly connected to the lower mold by bolts, and the support groove is connected to the discharge port.

[0016] Preferably, a gap is provided between the mounting seat and the protection seat.

[0017] The beneficial effects of the present invention are:

[0018] 1. The upper die of this extrusion die has a diversion hole, each of which independently controls the discharge of a profile. The upper die discharge surface is provided with a die male head, and the lower die is provided with a welding cavity and a die female cavity. They are assembled by matching the stopper and positioning pin screws. The number of bridge positions is increased and the thickness of the upper die is thickened to increase the die pressure. When the aluminum flow passes through the diversion hole of the upper die, it can be fully stirred and fused under high pressure and then extruded evenly. The profile extruded after die pressurization is more evenly arranged due to the high density of metal crystals, and the surface is brighter after oxidation, which perfectly solves the problem of black lines on the surface of the profile after oxidation. At the same time, following the design idea of ​​"symmetrical diversion and separate control", the two profiles are respectively diverted and controlled by the diversion holes of the upper die, and the two profiles are respectively fused by two independent welding chambers of the lower die. During extrusion, the extrusion force is symmetrical, the aluminum flow is evenly distributed, and the extrusion speed of the two profiles is consistent, which can fundamentally improve the yield and production efficiency.

[0019] 2. A protective seat is provided at the lower end of the lower die, and the water cavity inside the protective seat cools the entire aluminum profile, and the sides of the aluminum profile are extruded and limited by two extrusion rollers. The angle of the extrusion roller can be fine-tuned by adjusting the adjusting screws at both ends, so as to adjust the angle between the side of the aluminum profile and its main body, so as to reduce the side bending phenomenon during molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a cross-section of a one-die dual-outlet aluminum frame extrusion die with independent feeding proposed by the present invention;

[0021] Figure 2 for Figure 1 The structural diagram at A in the middle;

[0022] Figure 3 for Figure 1 Schematic diagram of the structure at B in the middle;

[0023] Figure 4 This is a schematic structural diagram of the cross-section of the upper die in the single-die double-outlet aluminum frame extrusion die with independent feeding proposed by the present invention;

[0024] Figure 5 This is a structural schematic diagram of a cross-section of the lower die in the single-die double-outlet aluminum frame extrusion die with independent feeding proposed by the present invention;

[0025] Figure 6 This is a schematic structural diagram of the upper die in the single-die double-outlet aluminum frame extrusion die with independent feeding proposed by the present invention, viewed from above;

[0026] Figure 7 This is a schematic structural diagram of a top view of the lower die in a one-die double-outlet aluminum frame extrusion die with independent feeding proposed by the present invention;

[0027] Figure 8 This is a schematic structural diagram of a cross-section view of a protective seat in a one-die double-outlet aluminum frame extrusion die with independent feeding proposed by the present invention;

[0028] Fig. 9 This is a schematic diagram of the structure of the extrusion roller in the single-mold double-outlet aluminum frame extrusion die with independent feeding proposed by the present invention;

[0029] Fig.10 This is a structural schematic diagram of the cross section of the extrusion roller in the single-mold double-outlet aluminum frame extrusion die with independent feeding proposed by the present invention.

[0030] In the figure: 1. upper die; 2. lower die; 3. diverter bridge; 4. diverter hole; 5. matching stopper; 6. upper die male head; 7. lower die welding cavity; 8. positioning pin; 9. fixing screw; 10. protection seat; 11. support groove; 12. water cavity; 13. discharge port; 14. graphite ring; 15. water pump; 16. mounting seat; 17. adjusting screw; 18. rotating shaft; 19. extrusion roller; 20. cavity; 21. blocking block; 22. spring. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] Reference Figure 1-10 , an independently fed one-die double-outlet aluminum frame extrusion die, comprising an upper die 1, a lower die 2 and a protective seat 10, wherein the upper die 1 and the lower die 2 are provided with matching stoppers 5 at one end edge, and the matching ends of the upper die 1 and the lower die 2 are provided with a plurality of positioning pins 8 and fixing screws 9, wherein the number of the positioning pins 8 and the fixing screws 9 is two to five, and the positioning pins 8 and the fixing screws 9 are matched, and two upper die male heads 6 are provided at one end of the upper die 1, and four shunt holes 4 are circumferentially provided on the outer sides of the two upper die male heads 6, and the shunt holes 4 run through the two ends of the upper die 1, and a shunt bridge 3 is provided between two adjacent shunt holes 4;

[0035] Two independent lower die welding cavities 7 are provided in the lower die 2. A discharge port 13 is provided at the bottom of each lower die welding cavity 7. A graphite ring 14 is installed at the bottom of the discharge port 13. The graphite ring 14 is covered at the discharge port 13. When discharging, the surface of the aluminum profile is wiped by the graphite ring 14 to improve the lubricity of the surface of the aluminum profile, facilitate discharging, and reduce cracking during discharging.

[0036] The protection seat 10 is installed at the bottom end of the lower mold 2, and two support grooves 11 are provided in the protection seat 10. The protection seat 10 is fixedly connected to the lower mold 2 by bolts, and the support grooves 11 are connected to the discharge port 13. A water cavity 12 is provided on the inner side of the protection seat 10, and the water cavity 12 is covered on the outer side of the support groove 11. A water pump 15 is provided in the water cavity 12, and a water injection port is provided on one side of the water cavity 12, and a connecting seat is provided on the water injection port;

[0037] A mounting seat 16 is provided on one side of the bottom end of the two supporting grooves 11, and a gap is provided between the mounting seat 16 and the protective seat 10. The middle part of the mounting seat 16 is rotatably connected to the protective seat 10 through a rotating shaft 18, and adjusting screws 17 are provided on both sides of the mounting seat 16, and two mutually parallel squeezing rollers 19 are rotatably installed on one side of the mounting seat 16 close to the supporting groove 11, a cavity 20 is provided inside the squeezing roller 19, and one end of the squeezing roller 19 is connected to the output end of the water pump 15, and a plurality of blocking blocks 21 are inserted on the outer wall of the squeezing roller 19, the blocking blocks 21 are slidably connected to the squeezing roller 19, and a spring 22 is provided at one end of the blocking block 21 located inside the squeezing roller 19, the number of the blocking blocks 21 is ten to twenty, and the outer end of the blocking block 21 is arranged in an arc shape.

[0038] In this embodiment, the upper mold 1 and the lower mold 2 are assembled by matching the stopper 5, the positioning pin 8 and the fixing screw 9, and the protective seat 10 is installed on the lower mold 2 by screws. After the mold is assembled, it is placed on an external extruder for extrusion. Aluminum rods with a diameter of 178MM to 200MM enter the mold through the diversion hole 4, and the aluminum flow reaches the independent lower mold welding cavity 7 and then merges. A cavity is formed under the action of the upper mold male head 6, and a solid is formed at the flat mold part. Then, a complete aluminum profile is extruded through the lower mold 2. During extrusion, the aluminum profile is cooled as a whole by the water cavity 12 inside the protective seat 10, and the side of the aluminum profile is inserted Between the two extrusion rollers 19, the side of the aluminum profile is extruded and limited by the two extrusion rollers 19, and the angle of the extrusion roller 19 can be fine-tuned by adjusting the adjusting screws 17 at both ends, so as to facilitate the adjustment of the angle between the side of the aluminum profile and its main body, so as to reduce the side bending phenomenon during forming. When the side of the aluminum profile passes through the extrusion roller 19, the side extrusion block 21 is moved to the inside of the extrusion roller 19, and at the same time, the water flow in the water cavity 12 is transported to the cavity 20 by the water pump 15, and flows to the side through the extruded block 21, so as to accelerate the cooling of the side, make it quickly set, and reduce the bending during discharge.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A single-die double-outlet aluminum frame extrusion die with independent material feeding, comprising an upper die (1), a lower die (2) and a protective seat (10), characterized in that: Two upper die male heads (6) are arranged at one end of the upper die (1), and four diversion holes (4) are arranged circumferentially on the outer sides of the two upper die male heads (6), the diversion holes (4) pass through both ends of the upper die (1), and a diversion bridge (3) is arranged between two adjacent diversion holes (4); The lower die (2) is provided with two independent lower die welding cavities (7), and the bottom end of each lower die welding cavity (7) is provided with a discharge port (13); The protection seat (10) is installed at the bottom end of the lower mold (2), and two support grooves (11) are provided in the protection seat (10), and a water cavity (12) is provided on the inner side of the protection seat (10), the water cavity (12) covers the outer side of the support groove (11), and a water pump (15) is provided in the water cavity (12); A mounting seat (16) is provided on one side of the bottom end of each of the two support grooves (11); the middle portion of the mounting seat (16) is rotatably connected to the protection seat (10) via a rotating shaft (18); adjustment screws (17) are provided on both sides of the mounting seat (16); and two mutually parallel squeezing rollers (19) are rotatably mounted on one side of the mounting seat (16) close to the support groove (11); a cavity (20) is provided inside the squeezing roller (19); one end of the squeezing roller (19) is connected to the output end of the water pump (15); and a plurality of blocking blocks (21) are inserted on the outer wall of the squeezing roller (19); the blocking blocks (21) are slidably connected to the squeezing roller (19); and a spring (22) is provided at one end of the blocking block (21) located inside the squeezing roller (19).

2. The independently fed one-die dual-outlet aluminum frame extrusion die according to claim 1, characterized in that: The upper die (1) and the lower die (2) are both provided with matching stoppers (5) at one end edge.

3. The independently fed one-die dual-outlet aluminum frame extrusion die according to claim 1, characterized in that: The mating ends of the upper die (1) and the lower die (2) are both provided with a plurality of positioning pins (8) and fixing screws (9).

4. The independently fed one-mold dual-outlet aluminum frame extrusion die according to claim 3, characterized in that: The number of the positioning pins (8) and the fixing screws (9) is two to five, and the positioning pins (8) and the fixing screws (9) are matched.

5. The independently fed one-die dual-outlet aluminum frame extrusion die according to claim 1, characterized in that: A graphite ring (14) is installed at the bottom of the discharge port (13), and the graphite ring (14) covers the discharge port (13).

6. The independently fed one-die dual-outlet aluminum frame extrusion die according to claim 1, characterized in that: A water inlet is provided on one side of the water cavity (12), and a connecting seat is provided on the water inlet.

7. The independently fed one-die dual-outlet aluminum frame extrusion die according to claim 1, characterized in that: The number of the blocking blocks (21) is ten to twenty, and the outer ends of the blocking blocks (21) are arranged in an arc shape.

8. The independently fed one-die dual-outlet aluminum frame extrusion die according to claim 1, characterized in that: The protection seat (10) is fixedly connected to the lower die (2) via bolts, and the support groove (11) is butted against the discharge port (13).

9. The independently fed one-die dual-outlet aluminum frame extrusion die according to claim 1, characterized in that: A gap is provided between the mounting seat (16) and the protection seat (10).

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