Die-casting device for machining based on window pulley

Abstract

The application discloses a die-casting device for window sliding wheel machining, which comprises an operating machine table arranged on the ground, a die-casting base fixedly arranged at the middle of the bottom of the inner cavity of the operating machine table, and a limiting guide rod fixedly arranged at the top of each corner of the die-casting base, and belongs to the technical field of die-casting. The die-casting device for window sliding wheel machining is characterized in that the upper die, the hydraulic rod, the lower die mechanism and the electric telescopic rod are matched to realize efficient and stable die-casting. During die-casting, the structures are cooperatively driven to automatically circulate and flow the cooling liquid, the cooling and shaping are rapidly completed, the processing efficiency is effectively improved, the circulating cooling liquid can drive the inside of the lower die mechanism to generate high-frequency oscillation, the internal bubble defects of the casting are eliminated, the product structural strength and surface quality are improved, meanwhile, the cooling liquid is uniformly disturbed in the die to improve the heat exchange efficiency, the temperature of the cavity is rapidly and evenly balanced, the deformation and cracking of the casting are prevented, the forming precision and product qualification rate are ensured, and the overall structure is simple, stable and reliable in operation.

Description

Technical Field

[0001] This invention relates to the field of die casting technology, specifically to a die casting device for processing window pulleys. Background Technology

[0002] Window rollers, as core hardware components that control the smooth opening and closing of doors and windows, are an indispensable part of door and window systems. Their roller housings are mostly made by die casting in one piece. The molding process has strict process control standards for the overall density of the components, the surface quality of the appearance, and the overall dimensional accuracy. As the overall quality system of the door and window industry continues to upgrade, the industry's assessment standards for the operational stability and long-term durability of hardware components are constantly being improved. This further promotes the continuous optimization of the window roller processing and molding process, and puts forward standardized and high-quality industry development requirements for the comprehensive performance of finished products, such as molding quality and service life.

[0003] Referring to the die-casting structure of the die-casting device disclosed in patent application CN209318749U, the cost of adjusting the die-casting pressure is lower and it is easier to operate; the hydraulic hammer is lowered to the lowest end, and the lifting platform is adjusted so that the upper mold and the lower mold are pressed together and the mold is closed. At this time, the telescopic spring group is only subjected to the gravity of the upper mounting plate and the upper mold to complete the pressure adjustment. In order to ensure the level of the lower mold, observe whether the indicator bead in the leveling instrument is located in the middle of the transparent hollow bend.

[0004] A comprehensive analysis of the above-mentioned patents reveals the following shortcomings: Existing die-casting equipment based on window pulley processing has difficulty in timely agitating and defoaming the molten metal raw material during the cooling process. This results in castings that are prone to containing air bubbles, have poor strength and surface quality, and have a low yield rate. Furthermore, the cooling heat exchange efficiency is poor, and the shaping efficiency is low. Therefore, it is necessary to provide a die-casting equipment based on window pulley processing to solve the above-mentioned technical problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a die-casting device based on window pulley processing, which solves the problem that during the cooling process of molten metal raw materials, it is difficult to timely vibrate and defoam the molten metal raw materials, resulting in castings that are prone to containing air bubbles, have poor strength and surface quality, low finished product qualification rate, poor cooling heat exchange efficiency, and low shaping efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a die-casting apparatus for processing window pulleys, comprising: An operating platform is placed on the ground. A die-casting base is fixedly installed in the middle of the bottom of the inner cavity of the operating platform. Limiting guide rods are fixedly installed at the four corners of the top of the die-casting base. An upper mold is slidably sleeved between the four limiting guide rods. A function box is fixedly installed on the top of the operating platform. A hydraulic rod is fixedly installed at the bottom of the inner cavity of the function box. The bottom of the hydraulic rod slides through the bottom of the function box and is fixedly connected to the middle of the top of the upper mold. An electric telescopic rod is fixedly installed at the front left side of the top of the upper mold. The bottom of the electric telescopic rod slides through the bottom of the upper mold. The lower mold mechanism is used to cooperate with the upper mold to form a closed die-casting cavity. During the die-casting process, it achieves rapid cooling and shaping, and generates oscillation and defoaming by means of the flow of coolant, so as to die-cast the wheel seat housing of the window pulley. The lower mold mechanism is located on the top of the die-casting base.

[0007] Preferably, the lower mold mechanism includes a receiving seat, which is fixedly disposed on the top of the die-casting base. The top of the receiving seat is evenly provided with several placement cavities from front to back. The interiors of two adjacent placement cavities are connected by two first openings. A liquid inlet bend is fixedly disposed at the front of the receiving seat, and a liquid outlet bend is fixedly disposed at the rear of the receiving seat.

[0008] Preferably, a lower mold assembly is fixedly inserted into each of the placement cavities, a piston cylinder is fixedly installed at the top left front end of the die-casting base, the piston cylinder is located directly below the electric telescopic rod, the end of the liquid inlet bend away from the receiving seat is fixedly connected to the bottom right side of the piston cylinder, a piston block is slidably arranged between the inner cavity sidewalls of the piston cylinder, and a piston rod is fixedly installed at the top center of the piston block.

[0009] Preferably, the top of the piston rod slides through the top of the piston cylinder and is fixedly provided with a top plate. A telescopic spring is sleeved on the outside of the piston rod. The telescopic spring is located between the top of the piston cylinder and the bottom of the top plate. A liquid extraction pipe is fixedly connected to the bottom of the front end of the piston cylinder. A coolant storage tank is fixedly provided at the bottom of the inner cavity of the operating platform. A liquid replenishment pipe is fixedly provided on the upper left side of the coolant storage tank. The coolant storage tank is filled with coolant. The bottom of the liquid extraction pipe is fixedly extended to the bottom of the inner cavity of the coolant storage tank. The bottom of the drain bend is fixedly extended to the upper part of the inner cavity of the coolant storage tank.

[0010] Preferably, each of the lower mold components includes a support base, a square partition frame is fixedly disposed between the side walls of the inner cavity of the support base, a second opening is provided on the front and rear walls of the support base and above and below the square partition frame, and a lower mold body is fixedly disposed in the inner cavity of the support base.

[0011] Preferably, the square partition is fixedly sleeved on the outer middle of the lower mold body, and defoaming components are provided around the outer wall of the lower mold body and at the upper and lower parts of the square partition. Two liquid stirring components are provided on the front and rear walls of the lower mold body and at the upper and lower parts of the square partition. The two adjacent liquid stirring components are arranged symmetrically.

[0012] Preferably, each of the defoaming components includes a connecting box, which is fixedly disposed on the outer wall of the lower mold body. A connecting shaft is rotatably inserted inside the connecting box, and one end of the connecting shaft is rotatably disposed on the outer wall of the lower mold body.

[0013] Preferably, the other end of the connecting shaft is rotatably mounted on the inner wall of the bearing base, and a plurality of arc-shaped blades are uniformly fixed around the outer edge of the connecting shaft, the arc-shaped blades being located outside the connecting box.

[0014] Preferably, a wear-resistant striking plate is fixedly provided on one side of the connecting shaft, the wear-resistant striking plate is located inside the connecting box, and elastic arc-shaped oscillation plates are fixedly provided on both sides of the inner cavity of the connecting box.

[0015] Preferably, each of the stirring components includes two supporting plates, which are fixedly connected between the outer wall of the lower mold body and the inner wall of the supporting base. A connecting shaft is rotatably arranged between the two supporting plates. A spiral blade is fixedly sleeved on the outside of the connecting shaft. The end of the connecting shaft near the second port rotatably passes through the supporting plate and is fixedly provided with a small impeller.

[0016] Beneficial effects This invention provides a die-casting apparatus for processing window pulleys. Compared with the prior art, it has the following advantages: (1) The die-casting device based on window pulley processing achieves efficient and stable die casting through the cooperation between the die-casting base, upper mold, hydraulic rod, lower mold mechanism and electric telescopic rod. During die casting, each structure works together to drive the coolant to circulate automatically, quickly complete the cooling and shaping, effectively improve the processing efficiency. The circulating coolant can drive the lower mold mechanism to generate high-frequency oscillation, eliminate the bubble defects inside the casting, improve the structural strength and surface quality of the product. At the same time, the coolant is uniformly disturbed in the mold, improves the heat exchange efficiency, makes the cavity temperature quickly equalized, prevents the casting from deforming and cracking, and ensures the molding accuracy and product qualification rate. The overall structure is simple and the operation is stable and reliable.

[0017] (2) The die-casting device based on window pulley processing forms an automatic circulation system through an electric telescopic rod, piston cylinder, telescopic spring and coolant storage tank. During the mold closing process, the electric telescopic rod drives the piston block to squeeze the coolant, which flows evenly into the outside of the mold through the inlet bend, the first port and the second port. After cooling, it flows back through the drain bend. When the electric telescopic rod retracts, the telescopic spring resets to form a negative pressure, automatically drawing in low-temperature coolant. The structure is simplified and the energy consumption is low. The continuous flow of coolant can quickly remove the heat of die casting, significantly shorten the cooling and solidification time of the casting, and improve the overall processing efficiency.

[0018] (3) The die-casting device based on the window pulley processing can impact the arc-shaped blades of the defoaming component during the flow of coolant, drive the connecting shaft and the wear-resistant striking plate to rotate, and repeatedly strike the elastic arc-shaped oscillating plate to generate high-frequency micro-oscillation. The oscillation wave is directly transmitted to the inside of the die-casting cavity. This method can effectively break the bubbles inside the molten metal without the need for an external vibration source, avoid defects such as porosity, looseness and shrinkage in the casting, greatly improve the structural strength and surface finish of the window pulley wheel seat housing, and meet the requirements of high precision and high strength.

[0019] (4) The die-casting device based on window pulley processing drives the small impeller of the stirring component to rotate when the coolant flows through the second port, and drives the spiral blade to forcibly disturb the coolant in the bearing base. Combined with the partition layout of the square frame, it eliminates the local high temperature dead corners of the mold, so that the temperature of each part of the cavity drops rapidly and evenly. Uniform cooling can prevent the casting from deformation, cracks, warping and other problems caused by uneven heating and cooling, and ensure that the product has a regular shape and meets the precision standards, effectively improving the finished product qualification rate.

[0020] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0021] Figure 1 This is a first perspective view of the present invention; Figure 2 This is a second perspective view of the present invention; Figure 3 This is the first assembly drawing of the die-casting base, limiting guide rod, upper mold, hydraulic rod and lower mold mechanism of the present invention; Figure 4 This is a second assembly drawing of the die-casting base, limiting guide rod, upper mold, hydraulic rod, and lower mold mechanism of the present invention. Figure 5 This is a perspective view of the mold mechanism of the present invention; Figure 6 This is an exploded view of the mold mechanism of the present invention; Figure 7 This is a perspective view of the mold assembly of the present invention; Figure 8 This is a cross-sectional perspective view of the mold assembly of the present invention; Figure 9 This is a sectional perspective view of the support base of the present invention; Figure 10 This is a front perspective view of the mold body of the present invention; Figure 11 This is a first perspective view of the defoaming component of the present invention; Figure 12 This is a second perspective view of the defoaming component of the present invention; Figure 13 This is a perspective view of the liquid stirring assembly of the present invention.

[0022] In the diagram: 1. Operating platform; 2. Die-casting base; 3. Limiting guide rod; 4. Upper mold; 5. Function box; 6. Hydraulic rod; 7. Lower mold mechanism; 71. Receiving seat; 72. Placement cavity; 73. First port; 74. Liquid inlet bend; 75. Liquid outlet bend; 76. Lower mold assembly; 761. Bearing base; 762. Square partition frame; 763. Second port; 764. Lower mold body; 765. Defoaming component; 765 1. Connecting box; 7652. Connecting shaft; 7653. Arc-shaped blade; 7654. Wear-resistant impact plate; 7655. Elastic arc-shaped oscillating plate; 766. Stirring assembly; 7661. Bearing connecting plate; 7662. Connecting shaft; 7663. Spiral blade; 7664. Small impeller; 77. Piston cylinder; 78. Piston rod; 79. Telescopic spring; 710. Liquid extraction pipe; 711. Coolant storage tank; 8. Electric telescopic rod. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] This invention provides two technical solutions: like Figure 1 and Figure 2 A first embodiment is shown: a die-casting apparatus for processing window pulleys, comprising: An operating platform 1 is placed on the ground. A die-casting base 2 is fixedly installed in the middle of the bottom of the inner cavity of the operating platform 1. Limiting guide rods 3 are fixedly installed at the four corners of the top of the die-casting base 2. An upper mold 4 is slidably sleeved between the four limiting guide rods 3. A function box 5 is fixedly installed on the top of the operating platform 1. A hydraulic rod 6 is fixedly installed at the bottom of the inner cavity of the function box 5. The bottom of the hydraulic rod 6 slides through the bottom of the function box 5 and is fixedly connected to the middle of the top of the upper mold 4. An electric telescopic rod 8 is fixedly installed at the front left side of the top of the upper mold 4. The bottom of the electric telescopic rod 8 slides through the bottom of the upper mold 4. The lower mold mechanism 7 is used to cooperate with the upper mold 4 to form a closed die-casting cavity. During the die-casting process, it achieves rapid cooling and shaping, and generates oscillation and defoaming by means of the flow of coolant, so as to die-cast the wheel seat housing of the window pulley. The lower mold mechanism 7 is set on the top of the die-casting base 2.

[0025] Through the coordinated operation of the die-casting base 2, upper mold 4, hydraulic rod 6, lower mold mechanism 7, and electric telescopic rod 8, efficient and stable die-casting of the window pulley seat housing can be achieved. During the die-casting process, the components work together to drive the coolant to form an automatic circulation loop, which continuously flows through the periphery of the mold cavity, quickly removing the high temperature generated by die casting, significantly shortening the cooling and solidification time of the casting, and significantly improving the overall processing efficiency. The circulating coolant can also drive the internal components of the lower mold mechanism 7 to operate, generating high-frequency micro-oscillations, which can promptly and effectively break the bubbles inside the molten metal, eliminate defects such as porosity, looseness, and shrinkage cavities, and significantly enhance the structural strength and surface finish of the window pulley casting. At the same time, the coolant is uniformly disturbed in the mold, improving the heat exchange efficiency, making the cavity temperature quickly and evenly balanced, preventing the casting from deforming and cracking, ensuring molding accuracy and product qualification rate. The overall structure is simple and the operation is stable and reliable.

[0026] like Figures 3 to 13The second embodiment is shown, the main difference from the first embodiment being: a die-casting device based on window pulley processing, wherein the lower mold mechanism 7 includes a receiving seat 71, the receiving seat 71 is fixedly mounted on the top of the die-casting base 2, and the top of the receiving seat 71 is evenly provided with a plurality of placement cavities 72 from front to back, and the interiors of two adjacent placement cavities 72 are connected by two first through-holes 73, the front part of the receiving seat 71 is fixedly provided with a liquid inlet bend 74, the rear part of the receiving seat 71 is fixedly provided with a liquid outlet bend 75, and a lower mold assembly 76 is fixedly passed through each placement cavity 72, and a piston cylinder 77 is fixedly provided at the front left side of the top of the die-casting base 2, the piston cylinder 77 is located directly below the electric telescopic rod 8, and the liquid inlet bend 74 is away from the receiving seat 71. One end of the piston cylinder 77 is fixedly connected to the bottom right side of the piston cylinder 77. A piston block is slidably arranged between the inner cavity sidewalls of the piston cylinder 77. A piston rod 78 is fixedly arranged in the middle of the top of the piston block. The top of the piston rod 78 slides through the top of the piston cylinder 77 and is fixedly arranged with a top plate. A telescopic spring 79 is sleeved on the outside of the piston rod 78. The telescopic spring 79 is located between the top of the piston cylinder 77 and the bottom of the top plate. A liquid extraction pipe 710 is fixedly connected to the bottom front end of the piston cylinder 77. A coolant storage tank 711 is fixedly arranged at the bottom of the inner cavity of the operating platform 1. A liquid replenishment pipe is fixedly arranged on the upper left side of the coolant storage tank 711. The coolant storage tank 711 is filled with coolant. The bottom of the liquid extraction pipe 710 is fixedly inserted into the coolant storage tank 711. At the bottom of the cavity, the bottom of the drain bend 75 is fixedly inserted through to the upper part of the inner cavity of the coolant storage tank 711. Each lower mold assembly 76 includes a support base 761. A square partition 762 is fixedly installed between the side walls of the middle part of the inner cavity of the support base 761. A second opening 763 is provided on the front and rear walls of the support base 761 above and below the square partition 762. A lower mold body 764 is fixedly installed in the inner cavity of the support base 761. The square partition 762 is fixedly fitted around the middle of the outer side of the lower mold body 764. Defoaming components 765 are provided around the outer wall of the lower mold body 764 above and below the square partition 762. Two agitating components 76 are provided on the front and rear walls of the lower mold body 764 above and below the square partition 762. 6. Two adjacent stirring components 766 are symmetrically arranged. Each defoaming component 765 includes a connecting box 7651. The connecting box 7651 is fixedly mounted on the outer wall of the lower mold body 764. A connecting shaft 7652 rotatably passes through the interior of the connecting box 7651. One end of the connecting shaft 7652 is rotatably mounted on the outer wall of the lower mold body 764, and the other end is rotatably mounted on the inner wall of the bearing base 761. Several arc-shaped blades 7653 are evenly fixedly arranged around the outer edge of the connecting shaft 7652. The arc-shaped blades 7653 are located outside the connecting box 7651. A wear-resistant striking plate 7654 is fixedly mounted on one side of the connecting shaft 7652. The wear-resistant striking plate 7654 is located inside the connecting box 7651.Both sides of the inner cavity of the connecting box 7651 are fixedly equipped with elastic arc-shaped oscillating plates 7655. Each stirring assembly 766 includes two supporting connecting plates 7661, which are fixedly connected between the outer wall of the lower mold body 764 and the inner wall of the supporting base 761. A connecting shaft 7662 is rotatably connected between the two supporting connecting plates 7661. A spiral blade 7663 is fixedly sleeved on the outside of the connecting shaft 7662. The end of the connecting shaft 7662 near the second opening 763 rotatably passes through the supporting connecting plate 7661 and is fixedly equipped with a small impeller 7664.

[0027] An automatic circulation system is formed by the electric telescopic rod 8, piston cylinder 77, telescopic spring 79, and coolant storage tank 711. During mold closing, the electric telescopic rod 8 drives the piston block to squeeze the coolant, which flows evenly into the outer periphery of the mold through the inlet bend 74, the first port 73, and the second port 763. After cooling, it flows back through the drain bend 75. When the electric telescopic rod 8 retracts, the telescopic spring 79 resets to form a negative pressure, automatically drawing in low-temperature coolant. The system has a simplified structure and low energy consumption. The continuous flow of coolant can quickly remove the heat from the die casting, significantly shortening the cooling and solidification time of the casting and improving the overall processing efficiency. During the flow of coolant, it can impact the arc-shaped blades 7653 of the defoaming component 765, driving the connecting shaft 7652 and the wear-resistant striking plate 7654 to rotate, repeatedly striking the elastic arc-shaped oscillating plate 7655 to generate high-temperature oscillation. The micro-oscillations transmit the oscillation waves directly to the die-casting cavity. This method effectively breaks up air bubbles inside the molten metal without the need for an external vibration source, avoiding defects such as porosity, looseness, and shrinkage cavities in the casting. It significantly improves the structural strength and surface finish of the window pulley seat housing, meeting the requirements for high precision and high strength. When the coolant flows through the second port 763, it drives the small impeller 7664 of the stirring assembly 766 to rotate, which in turn drives the spiral blades 7663 to forcibly disturb the coolant in the bearing base 761. Combined with the partitioned layout of the square partition frame 762, it eliminates local high-temperature dead corners in the mold, allowing the temperature of all parts of the cavity to drop rapidly and evenly. Uniform cooling can prevent problems such as deformation, cracking, and warping of the casting due to uneven heating and cooling, ensuring that the product has a regular shape and meets the precision standards, effectively improving the finished product qualification rate.

[0028] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0029] In use, molten metal is poured into each lower mold body 764. Then, the hydraulic rod 6 in the function box 5 outputs power downward, driving the upper mold 4 to move vertically and smoothly downward along the four limit guide rods 3, ensuring that the mold is closed without deviation or misalignment. The upper mold 4 and the lower mold mechanism 7 close precisely to form a closed die-casting cavity. Pressure is applied to the molten metal injected into the cavity to complete the basic die-casting of the window pulley seat housing. The upper mold 4 and the lower mold body 764 are existing technologies known to those skilled in the art. During the mold closing process, the electric telescopic rod 8 at the front left side of the upper mold 4 extends downward simultaneously, pressing the top plate at the top of the piston rod 78, compressing the telescopic spring 79 and pushing the piston block in the piston cylinder 77 downward. As the piston block descends, it generates extrusion force, forcing the coolant inside the piston cylinder 77 through the inlet bend 74 into multiple placement cavities 72 of the receiving seat 71. Since adjacent placement cavities 72 are connected through the first port 73, the coolant enters the outer cavity of the lower mold body 764 through the second port 763 of the bearing base 76, directly enveloping the mold cavity to achieve rapid cooling and accelerate metal solidification. The flowing coolant impacts the arc-shaped blades 7653 of the defoaming component 765, driving the connecting shaft 7652 to rotate continuously. The connecting shaft 7652 drives the wear-resistant striking plate 7654 to rotate within the connecting box 7651, repeatedly and alternately striking the elastic arc-shaped oscillating plates 7655 on both sides, generating high-frequency micro-oscillations. The oscillation waves pass through the lower mold body 764. The coolant is transferred into the mold cavity, disrupting the bubble structure inside the molten metal, causing the bubbles to rise and burst, thus preventing defects such as porosity and looseness in the casting from the source, and improving the density and strength of the product. When the coolant flows through the second port 763, it simultaneously impacts the small impeller 7664 of the stirring assembly 766, driving the connecting shaft 7662 to rotate, which in turn drives the spiral blades 7663 to rotate. The spiral blades 7663 forcibly disturb the coolant inside the cavity, eliminating local high-temperature dead zones, improving heat exchange efficiency, preventing deformation and cracking of the casting due to uneven heating and cooling, and ensuring the dimensional accuracy of the product. The heated coolant, having completed cooling and heat exchange, flows back to the coolant storage tank 711 through the drain bend 75 at the rear of the receiving seat 71, and then the electric extension... The retraction rod 8 retracts upwards, the telescopic spring 79 elastically resets, pulling the piston block upwards. A negative pressure is formed inside the piston cylinder 77, and the low-temperature coolant at the bottom of the coolant storage tank 711 is drawn back into the piston cylinder 77 through the liquid extraction pipe 710, completing one cycle. With the reciprocating extension and retraction of the electric telescopic rod 8, the coolant achieves continuous circulation and reuse, stably maintaining the cooling and defoaming effects. After the die-casting, cooling, and defoaming processes are completed, the hydraulic rod 6 drives the upper mold 4 to move upwards and reset, and the electric telescopic rod 8 retracts synchronously. The piston cylinder 77 and the coolant circulation system stop working, the mold cavity opens, and the formed window pulley seat housing can be removed. After cleaning the cavity, the next working cycle can begin. The entire process is highly automated and the structure is stable and reliable.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A die-casting apparatus for processing window pulleys, characterized in that, include: An operating platform (1) is placed on the ground. A die-casting base (2) is fixedly installed in the middle of the bottom of the inner cavity of the operating platform (1). Limiting guide rods (3) are fixedly installed at the four corners of the top of the die-casting base (2). An upper mold (4) is slidably sleeved between the four limiting guide rods (3). A function box (5) is fixedly installed on the top of the operating platform (1). A hydraulic rod (6) is fixedly installed at the bottom of the inner cavity of the function box (5). The bottom of the hydraulic rod (6) slides through the bottom of the function box (5) and is fixedly connected to the middle of the top of the upper mold (4). An electric telescopic rod (8) is fixedly installed at the front left side of the top of the upper mold (4). The bottom of the electric telescopic rod (8) slides through the bottom of the upper mold (4). The lower mold mechanism (7) is used to cooperate with the upper mold (4) to form a closed die-casting cavity. During the die-casting process, it achieves rapid cooling and shaping, and generates oscillation and defoaming by means of the flow of coolant, so as to die-cast the wheel seat housing of the window pulley. The lower mold mechanism (7) is set on the top of the die-casting base (2).

2. The die-casting device for processing window pulleys according to claim 1, characterized in that: The lower mold mechanism (7) includes a receiving seat (71), which is fixedly installed on the top of the die casting base (2). The top of the receiving seat (71) is evenly provided with several placement cavities (72) from front to back. The interiors of two adjacent placement cavities (72) are connected by two first ports (73). The front part of the receiving seat (71) is fixedly provided with a liquid inlet bend (74), and the rear part of the receiving seat (71) is fixedly provided with a liquid outlet bend (75).

3. The die-casting device for processing window pulleys according to claim 2, characterized in that: Each of the placement cavities (72) is fixedly permeated with a lower mold assembly (76). A piston cylinder (77) is fixedly installed at the top left front end of the die-casting base (2). The piston cylinder (77) is located directly below the electric telescopic rod (8). The end of the liquid inlet bend (74) away from the receiving seat (71) is fixedly connected to the bottom right side of the piston cylinder (77). A piston block is slidably arranged between the inner cavity sidewalls of the piston cylinder (77). A piston rod (78) is fixedly installed at the top center of the piston block.

4. The die-casting device for processing window pulleys according to claim 3, characterized in that: The top of the piston rod (78) slides through the top of the piston cylinder (77) and is fixedly provided with a top plate. A telescopic spring (79) is sleeved on the outside of the piston rod (78). The telescopic spring (79) is located between the top of the piston cylinder (77) and the bottom of the top plate. A liquid extraction pipe (710) is fixedly connected to the bottom of the front end of the piston cylinder (77). A coolant storage tank (711) is fixedly provided at the bottom of the inner cavity of the operating platform (1). A replenishment pipe is fixedly provided on the upper left side of the coolant storage tank (711). The coolant storage tank (711) is filled with coolant. The bottom of the liquid extraction pipe (710) is fixedly extended to the bottom of the inner cavity of the coolant storage tank (711). The bottom of the drain bend (75) is fixedly extended to the upper part of the inner cavity of the coolant storage tank (711).

5. A die-casting device for processing window pulleys according to claim 3, characterized in that: Each of the lower mold assemblies (76) includes a support base (761), a square partition frame (762) is fixedly disposed between the side walls of the inner cavity of the support base (761), and a second opening (763) is provided on the front and rear walls of the support base (761) and above and below the square partition frame (762). The lower mold body (764) is fixedly disposed in the inner cavity of the support base (761).

6. The die-casting device for processing window pulleys according to claim 5, characterized in that: The square partition (762) is fixedly sleeved on the outside of the lower mold body (764). The outer wall of the lower mold body (764) is provided with defoaming components (765) at the top and bottom of the square partition (762). The front and rear walls of the lower mold body (764) are provided with two stirring components (766) at the top and bottom of the square partition (762). The two adjacent stirring components (766) are symmetrically arranged.

7. A die-casting device for processing window pulleys according to claim 6, characterized in that: Each of the defoaming components (765) includes a connecting box (7651), which is fixedly disposed on the outer wall of the lower mold body (764). A connecting shaft (7652) is rotatably passed through the interior of the connecting box (7651), and one end of the connecting shaft (7652) is rotatably disposed on the outer wall of the lower mold body (764).

8. A die-casting apparatus for processing window pulleys according to claim 7, characterized in that: The other end of the connecting shaft (7652) is rotatably mounted on the inner wall of the bearing base (761). A number of arc-shaped blades (7653) are uniformly fixed around the outer edge of the connecting shaft (7652), and the arc-shaped blades (7653) are located outside the connecting box (7651).

9. A die-casting device for processing window pulleys according to claim 8, characterized in that: A wear-resistant striking plate (7654) is fixedly installed on one side of the connecting shaft (7652). The wear-resistant striking plate (7654) is located inside the connecting box (7651). Elastic arc-shaped oscillating plates (7655) are fixedly installed on both sides of the inner cavity of the connecting box (7651).

10. A die-casting apparatus for processing window pulleys according to claim 6, characterized in that: Each of the aforementioned mixing components (766) includes two supporting connecting plates (7661), which are fixedly connected between the outer wall of the lower mold body (764) and the inner wall of the supporting base (761). A connecting shaft (7662) is rotatably arranged between the two supporting connecting plates (7661). A spiral blade (7663) is fixedly sleeved on the outside of the connecting shaft (7662). The end of the connecting shaft (7662) near the second port (763) rotatably passes through the supporting connecting plate (7661) and is fixedly provided with a small impeller (7664).

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