Die opening device for aluminum profile hot extrusion die

Abstract

The utility model discloses an aluminum profile hot extrusion die opening device, and belongs to the technical field of divergent die opening equipment. A water tank fixedly connected with the bottom plate is arranged at the bottom of the portal frame; a water inlet is formed in the upper part of one side of the water tank; a water outlet is formed in the bottom of the water tank; a heating coil is arranged at the bottom in the water tank; a hydraulic cylinder is slidably connected to the portal frame, and a mold opening assembly matched with the transmission assembly is arranged at the extending end of the hydraulic cylinder. The water tank capable of being heated is additionally arranged, so that molten aluminum retained in the divergent mold is fully softened, subsequent mold opening is facilitated, a working tape is prevented from being damaged due to forced mold opening by external force, meanwhile, batch mold opening of divergent molds with different specifications is realized, and the mold opening efficiency is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of mold opening equipment for diversion molds, and more specifically, it relates to a mold opening device for hot extrusion molds of aluminum profiles. Background Technology

[0002] Aluminum profiles come in various shapes, and those with closed channels require processing using a flow divider die. The flow divider die consists of two molds: the upper mold primarily guides and positions the hollow portion of the profile, while the lower mold serves as the outer surface working zone and cutter. Because the flow divider works by heating an aluminum rod and, under extrusion pressure, causing the molten aluminum to flow through a flow divider bridge in the upper mold, it is divided into several streams. These streams then flow through flow dividers into the welding chamber, where they are re-welded under high temperature, high pressure, and high vacuum to form a hollow profile with a specific cross-sectional shape. Therefore, after use, the upper and lower molds are tightly fitted and fixed together, with some molten aluminum remaining inside, making the flow divider difficult to reuse and maintain.

[0003] Currently, the main method for opening molds is by external force to separate the upper and lower molds. One method involves manually opening the mold by striking it with a hammer, which is labor-intensive and inefficient. Another method, as disclosed in patent CN214556335U, is a vertical hydraulic aluminum profile mold opening machine. In this machine, the demolding head on the demolding frame is pushed downwards by a main hydraulic cylinder, and the aluminum profile mold is quickly opened after being squeezed by the demolding head. Simultaneously, a guide shaft limits the demolding frame to prevent it from shifting. This method replaces manual demolding with a machine, reducing the labor intensity for workers.

[0004] However, both of the above methods involve forcibly opening the mold with external force. During the forced mold opening process, the working belt inside the splitting mold is very easy to be damaged. After the working belt is damaged, the shape and wall thickness of the hollow profile will change, making the splitting mold unusable and requiring it to be returned to the factory for repair, which is time-consuming and labor-intensive and affects the processing progress. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a mold opening device for hot extrusion molds of aluminum profiles. It is equipped with a water tank that can be heated so that the aluminum liquid retained in the diversion mold can be fully softened, which facilitates subsequent mold opening and avoids damage to the working zone caused by external force forcibly opening the mold. At the same time, it realizes batch mold opening of diversion molds of different specifications, which greatly improves the mold opening efficiency.

[0006] The aluminum profile hot extrusion die opening device includes a base, a gantry frame slidably connected to both sides of the base, a water tank fixedly connected to the front end of the base at the bottom of the gantry frame, a water inlet at the upper part of one side of the water tank, a water outlet at the bottom of the water tank, a heating coil at the bottom of the water tank, and a set of one or more transmission components rotatably connected to both ends of the water tank above the heating coil. A hydraulic cylinder is slidably connected to the gantry frame, and an opening component that cooperates with the transmission components is provided at the extended end of the hydraulic cylinder.

[0007] Preferably, the transmission assembly includes a first rotating shaft and a second rotating shaft located at the same height and arranged in parallel, with a gap between the first rotating shaft and the second rotating shaft. The two ends of the first rotating shaft and the second rotating shaft extend out of the two ends of the water tank, and both ends of the first rotating shaft and the second rotating shaft are rotatably and sealed to the water tank.

[0008] Preferably, a first drive wheel is fixedly connected to one end of the first rotating shaft extending out of the water tank, and a second drive wheel is fixedly connected to one end of the second rotating shaft extending out of the water tank. The second drive wheel is connected to the first drive wheel in a transmission connection. A first reduction motor is fixed on the outer wall of the water tank, and the first reduction motor drives the first rotating shaft or the second rotating shaft to rotate.

[0009] Preferably, the transmission components are in two sets. A first geared motor is located between the two sets of transmission components. The output end of the first geared motor is provided with a drive wheel. A second rotating shaft is located close to the first geared motor. A third transmission wheel that cooperates with the drive wheel is provided on the second rotating shaft. The third transmission wheel is connected to the drive wheel in a transmission connection.

[0010] Preferably, the upper end of the gantry frame is provided with a moving groove, and the two sides of the moving groove along its length are respectively provided with second slide rails. The second slide rails are fixedly connected to the upper end of the gantry frame. A sliding plate is slidably connected to the second slide rails via a slider. A hydraulic cylinder and a second reduction motor are fixedly connected to the sliding plate. The protruding ends of the hydraulic cylinder and the second reduction motor both pass through the sliding plate. A rack is fixedly connected to any side wall along the length of the moving groove. The protruding end of the second reduction motor is provided with a moving gear that meshes with the rack. The protruding end of the hydraulic cylinder passes through the moving groove.

[0011] Preferably, the mold opening assembly includes a mold opening frame fixedly connected to the extended end of the hydraulic cylinder, and two mold opening rollers are rotatably connected to the lower part of the mold opening frame. A double-sided conical ring is fixed on the outer circumference of each of the two mold opening rollers.

[0012] Preferably, the radius of the double-sided conical ring decreases as it approaches the two sides of the mold-opening roller.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model realizes batch mold splitting of different specifications of flow dividers. By adding multiple sets of transmission components and cooperating with sliding hydraulic cylinders, each set of transmission components can be equipped with multiple flow dividers of different specifications. The hydraulic cylinders move back and forth through the gantry frame. A sliding plate that can slide left and right is added to the gantry frame, thereby realizing batch mold splitting of multiple flow dividers, which is more convenient to use and greatly improves the mold opening efficiency.

[0015] 2. Add a water tank that can be heated so that the molten aluminum remaining in the mold can be fully softened after heating in the water tank for 1-1.5 hours, which facilitates subsequent mold opening and avoids damage to the working zone caused by forced mold opening.

[0016] 3. The mold splitting assembly is equipped with a double-sided conical ring. The radius of the double-sided conical ring gradually decreases on both sides of the mold opening roller. The double-sided conical ring can make the upper and lower molds of the splitting mold bear the same amount of force, so that they separate synchronously and avoid uneven force on the upper and lower molds, which may cause misalignment when they separate and damage the working belt inside the splitting mold. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 for Figure 1 A magnified view of part A in the middle;

[0019] Figure 3 This is a schematic diagram showing the installation of the hydraulic cylinder, the second geared motor, and the mold opening assembly.

[0020] Figure 4 for Figure 3 A magnified view of part B in the middle section;

[0021] Figure 5 This is a top view of the structure of this utility model;

[0022] Figure 6 This is a reference diagram showing the internal usage state of this utility model.

[0023] In the diagram, 1. Gantry frame; 2. First slide rail; 3. Base; 4. Water tank; 5. First rotating shaft; 501. First transmission wheel; 6. Second rotating shaft; 601. Second transmission wheel; 602. Third transmission wheel; 7. First geared motor; 701. Drive wheel; 8. Water inlet; 9. Water outlet; 10. Moving groove; 11. Second slide rail; 12. Rack; 13. Sliding plate; 14. Hydraulic cylinder; 15. Second geared motor; 16. Moving gear; 17. Mold opening frame; 18. Mold opening roller; 19. Double-sided conical ring; 20. Heating coil; 21. Diverter mold. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] The directional terms used in the detailed description paragraphs are only for the convenience of those skilled in the art to understand the technical solutions described in this application based on the visual orientation shown in the accompanying drawings. Unless otherwise expressly specified and limited, the terms "setting," "installation," "connection," etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] like Figures 1 to 6 As shown, the aluminum profile hot extrusion die opening device includes a base 3. The base 3 can be a single large plate, or it can be... Figure 1 The two small base plates shown have a gantry frame 1 slidably connected to the base 3. Specifically, the base 3 has two parallel first slide rails 2 and two fixed racks (not shown in the figure) fixed on it. The gantry frame 1 is slidably connected to the first slide rails 2 by a slider. The gantry frame 1 is equipped with a motor for driving the movement of the gantry frame 1. The motor can drive the gantry frame 1 to move by meshing with the fixed racks through gears.

[0027] like Figure 1 and Figure 5 As shown, the bottom of the gantry frame 1 is equipped with a water tank 4 fixedly connected to the base 3. A water inlet 8 is located on the upper part of one side of the water tank 4, connected to a water supply pipe. An outlet 9 is located at the bottom of the water tank 4. A heating coil 20 is located inside the water tank 4, which heats the water inside. One or more sets of transmission components are rotatably connected to both ends of the water tank 4 above the heating coil 20. In this embodiment, two sets of transmission components are preferred. A hydraulic cylinder 14 is slidably connected to the gantry frame 1. The extended end of the hydraulic cylinder 14 is equipped with a mold-opening component that cooperates with the transmission components. In use, multiple flow dividers are placed on the transmission components, and water is added to the water tank 4. Simultaneously, regenerated alkali solution can be added to the water. Then, the water in the water tank 4 is heated by the heating coil 20, heating the flow dividers in the water tank 4 for 1-1.5 hours. This softens the molten aluminum remaining in the flow dividers, facilitating subsequent mold opening and preventing damage to the working belt from forced mold opening.

[0028] Specifically, the transmission assembly consists of two sets, each including a first rotating shaft 5 and a second rotating shaft 6 arranged in parallel. The first rotating shaft 5 and the second rotating shaft 6 are at the same horizontal height and have a certain gap between them. This gap is used to place the flow divider 21. The two ends of the first rotating shaft 5 and the second rotating shaft 6 extend out of the two ends of the water tank 4, and both ends of the first rotating shaft 5 and the second rotating shaft 6 are sealed and rotatably connected to the water tank 4 through bearings. The bearings are preferably waterproof roller bearings. A first transmission wheel 501 is fixedly connected to one end of the first rotating shaft 5 extending out of the water tank 4, and a second transmission wheel 601 is fixedly connected to one end of the second rotating shaft 6 extending out of the water tank 4. The second transmission wheel 601 and the first transmission wheel 501 are connected by a transmission component. The first transmission wheel 501 and the second transmission wheel 601 can be pulleys, with a synchronous belt as the transmission component; or they can be sprockets, with a chain as the transmission component.

[0029] A first geared motor 7 is fixed on the outer wall of the water tank 4. The first geared motor 7 is located between two sets of transmission components and drives the first rotating shaft 5 or the second rotating shaft 6 to rotate. In this embodiment, the output end of the first geared motor 7 is provided with a drive wheel 701. The second rotating shafts 6 in both sets of transmission components are located close to the first geared motor 7. Each of the two second rotating shafts 6 is provided with a third transmission wheel 602 that cooperates with the drive wheel 701. The two third transmission wheels 602 are connected to the drive wheel 701 through a transmission component. The drive wheel 701 and the third transmission wheels 602 can be either pulleys or sprockets. When the first geared motor 7 is started, it drives the two third transmission wheels 602 to rotate in the same direction. The two third transmission wheels 602 respectively drive the corresponding first transmission wheels 501 to rotate in the same direction, thereby realizing the same-direction rotation of the first rotating shaft 5 and the second rotating shaft 6. This allows the flow divider mold to slowly rotate in opposite directions on the first rotating shaft 5 and the second rotating shaft 6 under the action of gravity. The rotation of the flow divider mold facilitates the mold opening process and makes the force on the flow divider mold more even.

[0030] like Figure 1As shown, a moving groove 10 is provided at the upper end of the gantry frame 1. The length direction of the moving groove 10 is parallel to the axis of the first rotating shaft 5 and the second rotating shaft 6. Second slide rails 11 are respectively provided on both sides of the moving groove 10 along its length direction. The second slide rails 11 are fixedly connected to the upper end of the gantry frame 1. A sliding plate 13 is slidably connected to the second slide rail 11 through a slider. A hydraulic cylinder 14 and a second reduction motor 15 are fixed on the sliding plate 13. The protruding ends of the hydraulic cylinder 14 and the second reduction motor 15 both pass through the sliding plate 13. A rack 12 is fixedly connected to any side wall along the length direction of the moving groove 10. The protruding end of the second reduction motor 15 is provided with a moving gear 16 that meshes with the rack 12. When the second reduction motor 15 is started, the second reduction motor 15 meshes with the rack 12 through the moving gear 16, which can drive the sliding plate 13 and the hydraulic cylinder 14 to move. The protruding end of the hydraulic cylinder 14 passes through the moving groove 10, and the mold opening assembly is fixed to the bottom of the protruding end of the hydraulic cylinder 14.

[0031] like Figure 3 and Figure 4 As shown, the mold opening assembly includes a mold opening frame 17 fixedly connected to the extended end of the hydraulic cylinder 14. Two mold opening rollers 18 are rotatably connected to the lower part of the mold opening frame 17. The central axis of the mold opening rollers 18 is parallel to the axes of the first rotating shaft 5 and the second rotating shaft 6. A double-sided conical ring 19 is fixed to the outer circumference of each mold opening roller 18. Specifically, the radius of the double-sided conical ring 19 is larger at the center of the mold opening roller 18, and gradually decreases towards the two sides of the mold opening roller 18. The double-sided conical ring 19 allows the upper and lower molds of the flow divider to bear the same force, thus enabling them to separate synchronously and preventing uneven force distribution between the upper and lower molds, which could lead to misalignment and damage to the internal working zone of the flow divider during separation.

[0032] Those skilled in the art can use existing technologies they possess, such as installing appropriate mechanical limit switches or photoelectric sensors, to limit the specified positions of each actuator during the following operation.

[0033] like Figure 6 As shown, in use, multiple flow dividers 21 that need to be molded are placed sequentially between the first rotating shaft 5 and the second rotating shaft 6 of the transmission assembly. There is a certain distance between adjacent flow dividers 21. The structure of the first rotating shaft 5 and the second rotating shaft 6 is suitable for various flow dividers of different sizes. The water supply pipe is connected to the water inlet 8, and water is pumped into the water tank 4. The water level does not exceed the top of the flow divider 21. At the same time, the heating coil 20 is powered on to heat the water in the water tank 4. At this time, regenerated alkali solution can be added to the water tank 4 to help the flow divider 21 clean the residual waste aluminum inside. The heating time is controlled at 1-1.5 hours. During this process, the first geared motor 7 can be started to drive the first rotating shaft 5 and the second rotating shaft 6 to rotate, so that the flow divider 21 rotates relative to the first rotating shaft 5 and the second rotating shaft 6 under the action of gravity, thereby facilitating the heating of all flow dividers 21.

[0034] When the mold is opened, the motor is started, causing the gantry 1 to move towards the water tank 4. Once the gantry 1 is above the water tank 4, the first reduction motor 7 and the second reduction motor 15 are started. The second reduction motor 15 drives the sliding plate 13 and the hydraulic cylinder 14 to move until the hydraulic cylinder 14 moves above any of the flow dividers 21. The hydraulic cylinder 14 is then activated, and its extended end drives the mold opening assembly to descend, aligning the large-diameter center of the double-sided conical ring 19 with the connection point between the upper and lower flow dividers. At this point, the flow divider 21 slowly rotates under the action of the first reduction motor 7. Under the action of the hydraulic cylinder 14, the double-sided conical ring 19 rotates with the flow divider 21 and presses downward. The conical structure of the double-sided conical ring 19 separates the upper mold from the lower mold. Since the waste aluminum has been fully softened and decomposed during the heating process of the flow divider 21, the mold separation efficiency is greatly improved. At the same time, it avoids forced mold separation by external force and protects the working belt. After the mold separation is completed, the hydraulic cylinder 14 retracts, and the second reduction motor 15 drives the hydraulic cylinder 14 to move to the next flow divider 21. This cycle is repeated to realize the batch molding of the flow divider 21, making it more convenient to use.

[0035] Finally, although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A die opening device for hot extrusion of aluminum profiles, comprising a base (3), characterized in that: The base (3) is slidably connected to the two sides of the gantry frame (1). The bottom of the gantry frame (1) is provided with a water tank (4) fixedly connected to the front end of the base (3). The upper part of one side of the water tank (4) is provided with a water inlet (8). The bottom of the water tank (4) is provided with a water outlet (9). The bottom of the water tank (4) is provided with a heating coil (20). Above the heating coil (20) is a set of one or more transmission components that are rotatably connected to both ends of the water tank (4). The gantry frame (1) is slidably connected with a hydraulic cylinder (14). The extended end of the hydraulic cylinder (14) is provided with a mold opening component that cooperates with the transmission component.

2. The aluminum profile hot extrusion die opening device according to claim 1, characterized in that: The transmission assembly includes a first rotating shaft (5) and a second rotating shaft (6) located at the same height and arranged in parallel. There is a gap between the first rotating shaft (5) and the second rotating shaft (6). The two ends of the first rotating shaft (5) and the second rotating shaft (6) extend out of the two ends of the water tank (4), and the two ends of the first rotating shaft (5) and the second rotating shaft (6) are sealed and rotatably connected to the water tank (4).

3. The aluminum profile hot extrusion die opening device according to claim 2, characterized in that: The first shaft (5) is fixedly connected to a first transmission wheel (501) at one end extending out of the water tank (4), and the second shaft (6) is fixedly connected to a second transmission wheel (601) at one end extending out of the water tank (4). The second transmission wheel (601) is connected to the first transmission wheel (501) in a transmission connection. A first reduction motor (7) is fixed on the outer wall of the water tank (4). The first reduction motor (7) drives the first shaft (5) or the second shaft (6) to rotate.

4. The aluminum profile hot extrusion die opening device according to claim 3, characterized in that: The transmission components consist of two sets. The first geared motor (7) is located between the two sets of transmission components. The output end of the first geared motor (7) is provided with a drive wheel (701). The second rotating shaft (6) is located close to the first geared motor (7). The second rotating shaft (6) is provided with a third transmission wheel (602) that cooperates with the drive wheel (701). The third transmission wheel (602) is connected to the drive wheel (701) in a transmission connection.

5. The die opening device for hot extrusion dies of aluminum profiles according to any one of claims 1 to 4, characterized in that: The upper end of the gantry (1) is provided with a moving groove (10). The two sides of the moving groove (10) along the length direction are respectively provided with second slide rails (11). The second slide rails (11) are fixedly connected to the upper end of the gantry (1). A sliding plate (13) is slidably connected to the second slide rail (11) through a slider. A hydraulic cylinder (14) and a second reduction motor (15) are fixedly connected to the sliding plate (13). The protruding ends of the hydraulic cylinder (14) and the second reduction motor (15) both pass through the sliding plate (13). A rack (12) is fixedly connected to any side wall along the length direction of the moving groove (10). The protruding end of the second reduction motor (15) is provided with a moving gear (16) that meshes with the rack (12). The protruding end of the hydraulic cylinder (14) passes through the moving groove (10).

6. The aluminum profile hot extrusion die opening device according to claim 5, characterized in that: The mold opening assembly includes a mold opening frame (17) fixedly connected to the extended end of the hydraulic cylinder (14). Two mold opening rollers (18) are rotatably connected to the lower part of the mold opening frame (17). A double-sided conical ring (19) is fixed on the outer circumference of each of the two mold opening rollers (18).

7. The aluminum profile hot extrusion die opening device according to claim 6, characterized in that: The radius of the double-sided conical ring (19) decreases as it approaches the two sides of the mold-opening roller (18).

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