Anti-sticking film aluminum profile die-casting device
By adopting cooling channels, sprayers and temperature detection systems in the aluminum profile die casting device, combined with the molybdenum-based alloy coating layer and embedded design, the problem of mold sticking in aluminum alloy die casting is solved, and the casting quality is improved and the mold is improved. stability.
Patent Information
- Application Number
- CN202411285374.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2025-01-07
AI Technical Summary
The mold sticking phenomenon in the aluminum alloy die casting process leads to casting quality problems, such as surface strain, meat loss, internal shrinkage and surface dense layer damage, resulting in defects such as airtightness detection leakage, and the increase in mold temperature aggravates the mold sticking phenomenon.
A die-casting device for anti-mucosal aluminum profiles is designed, including the main mold, the secondary mold, the cooling device, the temperature detection device and the controller, which can achieve local precise cooling through cooling channels and sprayers, combining the molybdenum-based alloy coating layer and embedded design , avoid heat island phenomenon and sticking mold.
It effectively avoids excessive local temperature of the mold, reduces the occurrence of mold sticking, ensures the quality of castings and the stability of mold, and achieves efficient mold release and uniform temperature control of castings.
Smart Images
Figure CN119259944A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of die casting, and in particular to a die casting device for anti-sticking film aluminum profiles. Background Art
[0002] The sticking phenomenon in the die-casting process of aluminum alloys has always been a problem that has troubled die-casting practitioners. Because of sticking, many casting defects will directly extend, such as surface scratches, lack of meat, internal shrinkage, and leakage caused by damage to the surface dense layer of the product. When the mold continues to work, the temperature will become very high, which will make the temperature of the aluminum liquid too high, resulting in a chemical reaction between the mold and the metal liquid, causing sticking. At present, the temperature when sticking occurs can be measured and stabilized as a value. When the compound on the contact surface becomes an aluminum-iron mixture, as the die-casting spray hot and cold cycles and the number of injection molds increase, the sticking amount also increases. At the same time, the accumulation on the surface of the mold increases, which aggravates the attenuation of the thermal conductivity of the isolated island hot node of the mold, and the sticking becomes more and more serious. More serious results will cause the casting to adhere to the mold, and it is difficult to separate the casting from the mold. This type of sticking can be observed by the naked eye as a layer of white powder-like coating on the surface of the mold cavity, which directly destroys the surface dense layer of the die casting itself and causes quality defects such as leakage in the casting air tightness detection. Summary of the invention
[0003] In order to avoid the problem of mold sticking in the mold cavity, the present application provides an anti-sticking film aluminum profile die-casting device.
[0004] The present application provides an anti-adhesive film aluminum profile die-casting device, which adopts the following technical solution: An anti-adhesive film aluminum profile die-casting device, comprising a main mold, a sub-mold, a cooling device, a temperature detection device, a controller, an upper pad and a lower pad; The upper pad is provided with a lower hydraulic column, the main mold and the auxiliary mold are arranged in an upper and lower distribution, the main mold includes a main mold core and a core, the auxiliary mold includes an auxiliary mold core, and a cavity is opened in the auxiliary mold core; The cooling device comprises cooling channels, and the cooling channels comprise cooling channels A, cooling channels B, cooling channels C and cooling channels D. The cooling channels A and cooling channels B are arranged in parallel on the main mold core, and the cooling channels C and cooling channels D are arranged in parallel on the auxiliary mold core, and the cooling channels C and cooling channels D are arranged perpendicular to the cooling channels A and cooling channels B. The cooling device also includes a sprayer, which is arranged in the cooling channel. The sprayer includes an electric telescopic rod and a nozzle. The electric telescopic rod is connected to the controller signal. The sprayers arranged in the cooling channel A and the cooling channel B are arranged oppositely, and two sprayers are each arranged oppositely in the cooling channel C and the cooling channel D.
[0005] By adopting the above technical solution and setting up the cooling channels, the cooling channels include cooling channel A, cooling channel B, cooling channel C and cooling channel D. Sprayers are respectively provided in the cooling channels, and the sprayers can spray water for cooling in the cooling channels, thereby achieving a cooling effect.
[0006] In a specific possible implementation manner, the main mold core and the auxiliary mold core are provided with small holes communicating with the cooling channel to form evaporation holes.
[0007] By adopting the above technical solution and setting the evaporation holes, when the cooling water in the cooling channel evaporates when heated, the steam can be discharged to the outside through the evaporation holes.
[0008] In a specific possible implementation scheme, an inner sleeve is fixedly provided in the middle position of the cooling channel C and the cooling channel D, and a limit block is provided inside the inner sleeve.
[0009] By adopting the above technical solution and arranging the inner sleeve, it is possible to avoid collision between the sprayers inside the cooling channel C and the cooling channel D.
[0010] In a specific feasible implementation scheme, a middle partition block is fixedly provided on the lower pad, a bottom spacer block is provided on the top of the middle partition block, a protective spacer block is provided on the surrounding side of the sub-mold core, the protective spacer block is configured in a frame shape, the protective spacer block is fixedly connected to the middle partition block, a lateral connecting block is fixedly provided between the protective spacer block and the sub-mold, and a cavity is formed at the bottom and surrounding side of the sub-mold core to form a uniform temperature layer.
[0011] By adopting the above technical solution and setting a temperature-equalizing layer, the temperature around the sub-mold core can be more evenly maintained, thereby reducing the occurrence of heat islands.
[0012] In a specific possible implementation manner, the sub-mold core forms an embedded design through the bottom spacer block and the lateral connecting block.
[0013] By adopting the above technical solution, the embedded setting makes the sub-mold core no longer participate in the action during the die-casting and demolding process. By changing the fixing method of the sub-mold core, the process of the sub-mold core participating in the production is affected, making the sub-mold core more stable when in use.
[0014] In a specific possible implementation scheme, a lifting hydraulic column is fixedly arranged on the lower pad, and one end of the lifting hydraulic column away from the lower pad is fixedly connected to the needle storage block.
[0015] By adopting the above technical solution, In a specific possible implementation scheme, a lifting hydraulic column is fixedly arranged on the lower pad, and one end of the lifting hydraulic column away from the lower pad is fixedly connected to the needle storage block.
[0016] By adopting the above technical solution, through the setting of the jacking hydraulic column and the needle storage block, this setting is used to demould the aluminum product after processing.
[0017] In a specific possible implementation scheme, a pressurized injection gun is provided inside the protective spacer block, and the pressurized injection gun passes through the protective spacer block, the lateral spacer block and the secondary mold core in sequence from the outside. A pressurized nozzle is provided at the end of the pressurized injection gun, and the pressurized nozzle extends into the interior of the secondary mold core.
[0018] By adopting the above technical solution, the pressurized injection gun and the pressurized nozzle are arranged to inject aluminum liquid into the mold cavity.
[0019] In a specific possible implementation scheme, the temperature detection device includes an upper thermal imager and a lower thermal imager, the upper thermal imager is fixedly set on the top of the main mold core, and the lower thermal imager is fixedly set on the top of the middle partition block, and the upper thermal imager and the lower thermal imager are both connected to the controller signal.
[0020] By adopting the above technical solution, the upper thermal imager and the lower thermal imager are both connected to the controller signal, which enables the equipment to monitor the temperature of the main mold and the sub-mold in real time, and control the sprayer to move to the position where the temperature is too high to spray coolant to achieve the technical effect of cooling.
[0021] In a specific possible implementation manner, the surfaces of the core and the cavity are coated with a molybdenum-based alloy to form a coating layer on the surface.
[0022] By adopting the above technical solution, the melting point of the molybdenum-based alloy is relatively high, which can play a role in avoiding mold sticking.
[0023] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the setting of cooling channels and temperature detection devices, the cooling channels include cooling channel A, cooling channel B, cooling channel C and cooling channel D. Sprayers are respectively arranged in the cooling channels. The sprayers can spray water in the cooling channels for cooling, thereby playing a cooling role. The upper thermal imager and the lower thermal imager are both connected to the controller signal, which enables the equipment to monitor the temperature of the main mold and the sub-mold in real time, and control the sprayer to move to the position where the temperature is too high to spray coolant to achieve the technical effect of cooling, forming a control closed loop for local precise cooling, which can effectively avoid excessive local temperature of the mold and avoid mold sticking.
[0024] 2. By setting the bottom spacer block and the lateral connecting block, a cavity is formed at the bottom and the surrounding side of the sub-mold core to form a uniform temperature layer, and an embedded design can be formed for the sub-mold. This setting can make the temperature control of the sub-mold more uniform, make the sub-mold have a more stable working posture, and facilitate temperature detection and cooling of the sub-mold. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 is an external schematic diagram of an embodiment of the present application; Figure 2 is a perspective view of a master mold in an embodiment of the present application; Figure 3 is a cross-sectional view of an embodiment of the present application; Figure 4 It is a structural diagram of the needle storage block and the lifting hydraulic column; Figure 5 It is a perspective view of the sub-mold body structure.
[0026] Explanation of the reference numerals in the accompanying drawings: 1. Upper pad; 11. Lower hydraulic column; 2. Lower pad; 21. Bottom spacer block; 22. Lifting hydraulic column; 3. Middle partition block; 311. Needle storage block; 312. Ejector; 4. Protective spacer block; 41. Lateral connecting block; 42. Pressurized injection gun; 43. Pressurized nozzle; 5. Main mold; 51. Core; 52. Main mold core; 6. Sub-mold; 61. Cavity; 63. Sub-mold core; 711. Electric telescopic rod; 712. Nozzle; 721. Cooling channel A; 722. Cooling channel B; 723. Cooling channel C; 724. Cooling channel D; 725. Inner sleeve; 726. Limit block; 73. Evaporation hole; 81. Upper thermal imager; 82. Lower thermal imager; 9. Controller; 10. Temperature balancing layer. DETAILED DESCRIPTION
[0027] The following is combined with Figure 1-5 This application is described in further detail.
[0028] In the description of the invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the 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 invention.
[0029] The present application embodiment discloses a die-casting device for an anti-adhesive film aluminum profile, referring to Figure 1 , including a main mold 5, a sub-mold 6, a cooling device, a temperature detection device, a controller 9, an upper pad 1 and a lower pad 2.
[0030] Reference Figure 2 and Figure 3, the upper pad 1 and the lower pad 2 are fixed and play a stable supporting role. A lower hydraulic column 11 is arranged on the upper pad 1, and the lower hydraulic column 11 is used to drive the main mold 5 to perform die-casting. The main mold 5 and the auxiliary mold 6 are arranged up and down, and the main mold 5 includes a main mold core 52 and a core 51, and the core 51 is opened at the bottom of the main mold core 52. The auxiliary mold 6 includes an auxiliary mold core 63, and the auxiliary mold core 63 is fixedly connected to the lower hydraulic column 11, and a cavity 61 is opened in the auxiliary mold core 63. The core 51 and the cavity 61 are arranged in coordination. When the main mold 5 and the auxiliary mold 6 are completely closed, the core 51 and the cavity 61 together constitute the die-casting shape of the product.
[0031] The surfaces of the core 51 and the cavity 61 are coated with a molybdenum-based alloy to form a coating layer on the surface. The molybdenum-based alloy has a high melting point and can prevent mold sticking.
[0032] Reference Figure 3 and Figure 4 The lower pad 2 is fixedly provided with a middle partition block 3, the top of the middle partition block 3 is provided with a middle bottom partition block 21, the middle partition block 3 is provided with a groove, the groove is provided with an ejector pin 312 mechanism, the ejector pin 312 mechanism includes a needle storage block 311 and an ejector pin 312, a plurality of ejector pins 312 are provided, and the plurality of ejector pins 312 are embedded and fixed on the needle storage block 311. An ejector pin channel is provided at the bottom of the secondary mold core 63, and in the initial state, the ejector pin 312 is inserted into the ejector pin channel. The lower pad 2 is fixedly provided with a jacking hydraulic column 22, and the middle partition block 3 is provided with a channel matching the jacking hydraulic column 22. The end of the lifting hydraulic column 22 away from the lower pad 2 is fixedly connected to the needle storage block 311. The lifting hydraulic column 22 drives the needle storage block 311 to move up and down, thereby driving the ejector pin 312 to move up and down. When the lifting hydraulic column 22 drives the ejector pin 312 to rise, the ejector pin 312 can extend into the cavity 61, so that the die-cast product is pushed out of the cavity 61 by external force, thereby completing the demolding.
[0033] A protective spacer block 4 is arranged on the surrounding side of the sub-mold core 63. The protective spacer block 4 is arranged in a frame shape. The protective spacer block 4 is fixedly connected to the middle partition block 3. A lateral connecting block 41 is fixedly arranged between the protective spacer block 4 and the sub-mold. The lateral connecting block 41 connects the protective spacer block 4 to the sub-mold core 63. There is a gap between the lateral connecting block 41 and the sub-mold core 63, so that the bottom and the surrounding side of the sub-mold core 63 are spaced by the bottom spacer block 21 and the lateral spacer block respectively, so that the sub-mold core 63 forms an embedded design, so that a cavity is formed at the bottom and the surrounding side of the sub-mold core 63 to form a uniform temperature layer 10. The setting of the uniform layer can make the heat from all sides evenly transferred to the inside of the sub-mold core 63. This setting can avoid uneven heating of the sub-mold core 63.
[0034] A pressurized injection gun 42 is provided inside the protective spacer block 4. The pressurized injection gun 42 passes through the protective spacer block 4, the lateral spacer block and the secondary mold core 63 from the outside in sequence. A pressurized nozzle 43 is provided at the end of the pressurized injection gun 42. The pressurized nozzle 43 extends into the secondary mold core 63. In the embodiment of the present application, the pressurized main material gun is specifically configured as a pipe made of H13 steel. The material of the pressurized nozzle 43 is the same as that of the pressurized injection gun 42. The injection end of the pressurized nozzle 43 is configured as a narrow mouth. The aluminum liquid flows into the pressurized nozzle 43 through the pressurized injection gun 42. The pressure increases due to the narrowing of the flow path, so that the spraying angle and spraying distance of the pressurized nozzle 43 are relatively good, which can eliminate the spraying dead point, thereby solving the mold sticking problem caused by the spraying dead point.
[0035] The temperature detection device includes an upper thermal imager 81 and a lower thermal imager 82. The upper thermal imager 81 is fixedly arranged on the top of the main mold core 52, and the lower thermal imager 82 is fixedly arranged on the top of the middle partition block 3. The upper thermal imager 81 and the lower thermal imager 82 are both connected to the controller 9 by signal. Through the arrangement of the upper thermal imager 81 and the lower thermal imager 82, the temperature distribution state of the main mold 5 and the auxiliary mold 6 can be detected in real time.
[0036] Reference Figure 2 and Figure 5 The cooling device includes a cooling channel, which is composed of a plurality of opened pipes, including cooling channel A721, cooling channel B722, cooling channel C723 and cooling channel D724. Cooling channel A721 and cooling channel B722 are parallelly distributed and opened on the main mold core 52, cooling channel C723 and cooling channel D724 are parallelly distributed and opened on the secondary mold core 63, and cooling channel C723 and cooling channel D724 are vertically arranged with cooling channel A721 and cooling channel B722. The cooling device also includes a sprayer, which is arranged in the cooling channel. There are a plurality of sprayers, and the plurality of sprayers are respectively arranged in cooling channel A721, cooling channel B722, cooling channel C723 and cooling channel D724, wherein the sprayers arranged in cooling channel A721 and cooling channel B722 are arranged oppositely, and two sprayers are arranged oppositely in cooling channel C723 and cooling channel D724. The sprayer includes an electric telescopic rod 711 and a nozzle 712. The electric telescopic rod 711 is connected to the controller 9 by signal. The electric telescopic rod 711 is used to drive the nozzle 712 to move in the cooling channel A721, the cooling channel B722, the cooling channel C723 and the cooling channel D724. The nozzle 712 is connected to a pipeline for conveying cooling water, and the cooling water is sprayed out in a mist form through the nozzle 712. The main mold core 52 and the auxiliary mold core 63 are provided with small holes connected to the cooling channels to form evaporation holes 73. The evaporation holes 73 are used to discharge the water vapor generated by evaporation in the cooling channels.
[0037] An inner sleeve 725 is also fixedly provided in the middle position of the cooling channel C723 and the cooling channel D724, and a limit block 726 is provided inside the inner sleeve 725. When the electric telescopic rod 711 at both ends of the cooling channel C723 and the cooling channel D724 drives the nozzle 712 to move, it can be blocked by the limit block 726, thereby avoiding collision of the nozzles 712 at both ends.
[0038] The implementation principle of the embodiment of the present application is as follows: when using a mold to process aluminum casting products, the controller 9 receives the temperature distribution status monitored by the upper thermal imager 81 and the lower thermal imager 82. When the local temperature value increases to before the critical point of sticking, the controller 9 controls the electric telescopic rod 711 to move the nozzle 712 to the position where the temperature is too high, or to the position closest to the excessively high temperature to spray cooling water for cooling, thereby lowering the temperature before sticking occurs, thereby avoiding the problem of sticking in the mold cavity 61.
[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. An anti-adhesive film aluminum profile die-casting device, characterized in that: It comprises a main mold (5), a secondary mold (6), a cooling device, a temperature detection device, a controller, an upper pad (1) and a lower pad (2); A lower hydraulic column (11) is arranged on the upper pad (1), the main mold (5) and the auxiliary mold (6) are arranged in an upper and lower distribution, the main mold (5) comprises a main mold core (52) and a core (51), the auxiliary mold (6) comprises an auxiliary mold core (63), and a mold cavity (61) is formed in the auxiliary mold core (63); The cooling device comprises cooling channels, wherein the cooling channels comprise cooling channel A (721), cooling channel B (722), cooling channel C (723) and cooling channel D (724); the cooling channel A (721) and cooling channel B (722) are arranged in parallel on the main mold core (52); the cooling channel C (723) and cooling channel D (724) are arranged in parallel on the secondary mold core (63); the cooling channel C (723) and cooling channel D (724) are arranged perpendicular to the cooling channel A (721) and cooling channel B (722); The cooling device also includes a sprayer, which is arranged in the cooling channel. The sprayer includes an electric telescopic rod (711) and a nozzle (712). The electric telescopic rod (711) is connected to the controller signal. The sprayers arranged in the cooling channel A (721) and the cooling channel B (722) are arranged opposite to each other, and two sprayers are arranged opposite to each other in the cooling channel C (723) and the cooling channel D (724).
2. The anti-adhesive film aluminum profile die-casting device according to claim 1, characterized in that: The main mold core (52) and the auxiliary mold core (63) are provided with small holes communicating with the cooling channel (72) to form evaporation holes (73).
3. The anti-adhesive film aluminum profile die-casting device according to claim 1, characterized in that: An inner sleeve (725) is fixedly disposed at a middle position between the cooling channel C (723) and the cooling channel D (724), and a limit block (726) is provided inside the inner sleeve (725).
4. The anti-adhesive film aluminum profile die-casting device according to claim 1, characterized in that: A middle partition block (3) is fixedly arranged on the lower pad (2), a bottom partition block (21) is arranged on the top of the middle partition block (3), a protective partition block (4) is arranged on the peripheral side of the secondary mold core (63), the protective partition block (4) is arranged in a frame shape, the protective partition block (4) is fixedly connected to the middle partition block (3), a lateral connecting block (41) is fixedly arranged between the protective partition block (4) and the secondary mold, and a cavity is formed at the bottom and peripheral side of the secondary mold core (63) to form a uniform temperature layer (10).
5. The anti-adhesive film aluminum profile die-casting device according to claim 4, characterized in that: The secondary mold core (63) forms an embedded design through the bottom spacing block (21) and the lateral connecting block (41).
6. The anti-adhesive film aluminum profile die-casting device according to claim 4, characterized in that: The middle partition block (3) is provided with a groove, and an ejector mechanism is arranged in the groove. The ejector mechanism comprises a needle storage block (311) and an ejector (312). A plurality of ejector pins (312) are provided, and the plurality of ejector pins (312) are all embedded and fixed on the needle storage block (311). An ejector pin (312) channel is provided at the bottom of the secondary mold core (63).
7. The anti-adhesive film aluminum profile die-casting device according to claim 6, characterized in that: A lifting hydraulic column (22) is fixedly arranged on the lower pad (2), and one end of the lifting hydraulic column (22) away from the lower pad (2) is fixedly connected to the needle storage block (311).
8. The die-casting device for aluminum profiles with an anti-adhesive film according to claim 4, characterized in that: A pressurized injection gun (42) is arranged inside the protective spacer block (4), and the pressurized injection gun (42) passes through the protective spacer block (4), the lateral spacer block and the secondary mold core (63) in sequence from the outside. A pressurized nozzle (43) is arranged at the end of the pressurized injection gun (42), and the pressurized nozzle (43) extends into the interior of the secondary mold core (63).
9. The anti-adhesive film aluminum profile die-casting device according to claim 1, characterized in that: The temperature detection device comprises an upper thermal imager (81) and a lower thermal imager (82); the upper thermal imager (81) is fixedly arranged on the top of the main mold core (52); the lower thermal imager (82) is fixedly arranged on the top of the middle partition block (3); and both the upper thermal imager (81) and the lower thermal imager (82) are connected to the controller signal.
10. The anti-adhesive film aluminum profile die-casting device according to claim 1, characterized in that: The surfaces of the core (51) and the cavity (61) are coated with a molybdenum-based alloy to form a coating layer on the surface.