A casting device for precision castings

Abstract

The present invention relates to the technical field of casting, and discloses a casting device for precision castings, including a main body component, including a base, a slide rail fixedly connected to one side of the base, a slide seat slidably connected to the slide rail, and a mold component, including a first mold block and a second mold block located on one side of the base, a first sealing component installed on the side of the first mold block facing the second mold block, and a second sealing component installed on the side of the second mold block facing the first mold block. The present invention realizes rapid and accurate closure of the mold through precise mechanical design and hydraulic drive, and improves the dimensional accuracy and surface finish of the casting. The application of the sealing component and the airbag system effectively prevents the leakage of molten metal, ensures the cleanliness and safety of the casting process, and improves the yield rate. The intuitive monitoring and manual adjustment function of the airbag inflation state simplifies the operating process, improves the efficiency and convenience of the casting operation, and also ensures the sealing reliability of each casting process.

Description

Technical Field

[0001] The invention relates to the technical field of casting, and in particular to a casting device for precision castings. Background Art

[0002] In modern manufacturing, mold technology is an indispensable key link in shaping various precision parts and products, especially in the field of metal casting. As a widely used technical means in this field, the working principle of traditional injection molds is based on the precise docking of two or more artificial hard surfaces (usually steel or other wear-resistant materials) to form a closed space to accommodate and give shape to the material. This process not only requires extremely high dimensional accuracy and surface finish, but also must ensure good sealing under high pressure and high temperature working environment to ensure the quality and consistency of the molded product.

[0003] However, this type of injection mold faces a long-standing technical challenge in practical applications: the flatness and sealing of the mold contact surface. During the manufacturing and use of the mold contact surface, it is difficult to achieve absolute flatness in theory due to factors such as machining accuracy limitations, surface micro-unevenness, and long-term wear. These tiny uneven areas will form tiny gaps when the mold is closed. Although these gaps may only be measured in microns, during high-temperature processing such as metal casting, the molten metal of the material (such as aluminum, zinc, copper and other alloys) will be subjected to great pressure when injected into the mold cavity, and under the action of high temperature, the mold material itself will also expand and contract, further exacerbating the existence and expansion of these gaps.

[0004] The leakage of molten metal will not only cause defects in molded parts, such as pores and cracks, which will seriously affect the physical properties and appearance quality of the product, but also increase production costs and reduce production efficiency, because the leaked molten metal may damage the mold and even cause safety accidents. Therefore, how to effectively solve the problem of micro-gap when closing traditional injection molds has always been one of the key and difficult points in the field of mold design and manufacturing. Summary of the invention

[0005] The present invention has been proposed in view of the above-mentioned problems existing in the conventional casting apparatus for precision castings.

[0006] Therefore, the object of the present invention is to provide a casting device for precision castings, which aims to provide a casting mold with better sealing, precision control, air pressure control accuracy and intuitive operability.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: A casting device for precision castings includes a main body component, including a base, one side of the base is fixedly connected to a slide rail, a slide seat is slidably connected to the slide rail, one side of the base is fixedly connected to a control cabinet, a motor is installed on the control cabinet, and the motor is located on one side of the slide rail;

[0008] A mold component is located on one side of the main body component, and the mold component includes a first mold block and a second mold block located on one side of the base. A first sealing component is installed on the side of the first mold block facing the second mold block, and a second sealing component is installed on the side of the second mold block facing the first mold block. Mold grooves are provided on opposite sides of the first mold block and the second mold block.

[0009] As a preferred solution of the casting device for precision castings described in the present invention, wherein: a hydraulic rod is fixedly connected to the side of the second mold block away from the first mold block, the hydraulic rod passes through a fixed back plate, the fixed back plate is fixedly connected to the base, and the fixed back plate is located on the side of the second mold block away from the first mold block.

[0010] As a preferred solution of the casting device for precision castings described in the present invention, two sets of fixed rods are fixedly connected on both sides of the fixed back plate, a fixed plate is fixedly connected on the side of the first mold block away from the second mold block, one side of the fixed rod is fixedly connected to the fixed plate, and limiting blocks are fixedly connected on both sides of the second mold block, and the limiting blocks are located between the two fixed rods.

[0011] As a preferred solution of the casting device for precision castings of the present invention, the sliding seat is fixedly connected to the second mold block.

[0012] As a preferred solution of the casting device for precision castings described in the present invention, one side of the first mold block is fixedly connected with an injection pipe, the injection pipe flows into the mold groove through a circulation pipe, and the outlet of the circulation pipe is located on the side of the mold groove away from the base.

[0013] As a preferred solution of the casting device for precision castings described in the present invention, wherein: a plurality of accommodating grooves are opened on the first mold block, a connecting groove is opened on one side of each of the accommodating grooves, an airbag is fixedly connected to the side of the first mold block close to the second mold block, and the airbag is located above the connecting groove.

[0014] As a preferred embodiment of the casting device for precision castings described in the present invention, a multi-stage rod is fixedly connected in the accommodating groove, and the multi-stage rod includes a first hollow rod fixed to the accommodating groove, a second hollow rod slidably connected to the first hollow rod, a third hollow rod slidably connected to the second hollow rod, and a solid rod slidably connected to the third hollow rod, and a spring is fixedly connected between the first hollow rod and the second hollow rod, the second hollow rod and the third hollow rod, and the third hollow rod and the solid rod.

[0015] As a preferred solution of the casting device for precision castings described in the present invention, the side wall of the first hollow rod is provided with a groove, an air pipe is fixedly connected to the groove of the first hollow rod, the other end of the air pipe is fixedly connected to the connecting groove, the bottom plate of the second hollow rod is provided with a first air vent near the side wall, and the bottom plate of the third hollow rod is provided with a second air vent near the side wall.

[0016] As a preferred solution of the casting device for precision castings described in the present invention, a first valve, a second valve and a third valve are installed inside the airbag, the structures of the first valve, the second valve and the third valve are consistent, the first valve is composed of two nested one-way valves, and an air pump is fixedly connected between the two third valves on the airbag.

[0017] As a preferred solution of the casting device for the precision castings described in the present invention, one side of the mold groove on the second mold block is fixedly connected with a clamping groove, the clamping groove cooperates with the airbag, the clamping groove is provided with an open groove, the air pump slides in the open groove, and one side of the mold groove is provided with a circular guide groove, and the circular guide groove cooperates with the solid rod.

[0018] Beneficial effects of the present invention: Through precise mechanical design and hydraulic drive, the mold can be closed quickly and accurately, and the dimensional accuracy and surface finish of the casting can be improved. The application of the sealing component and the airbag system effectively prevents the leakage of the molten metal, ensures the cleanliness and safety of the casting process, and improves the yield rate. The intuitive monitoring and manual adjustment function of the airbag inflation state simplifies the operating process, improves the efficiency and convenience of the casting operation, and also ensures the sealing reliability of each casting process. The setting of the spring ensures the rapid resetting of the multi-stage rod, and the innovative design of the valve ensures the accuracy of the air pressure control and the rapid recovery of the system, which is conducive to improving the repeatability and stability of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the second mold block structure of the present invention.

[0022] Figure 3 It is a schematic diagram of the planar structure of the first mold block of the present invention.

[0023] Figure 4 The first mold block of the present invention is along Figure 3 Schematic diagram of the cross-sectional structure of the central BB axis.

[0024] Figure 5 for Figure 4 A schematic diagram of the enlarged structure at point A in the middle.

[0025] Figure 6 It is a schematic diagram of the first valve structure of the present invention.

[0026] Figure 7 It is a schematic diagram of the airbag structure of the present invention.

[0027] In the figure:

[0028] 100, main body; 101, base; 103, slide rail; 104, slide seat; 105, control cabinet; 106, motor; 200, mold component; 201, first mold block; 201a, fixed plate; 201b, injection pipe; 201c, circulation pipe; 202, second mold block; 202a, mold groove; 202b, hydraulic rod; 202c, fixed back plate; 202d, fixed rod; 202e, limit block; 203, first sealing assembly; 203a, container The groove; 203b, the connecting groove; 203c, the air bag; 203d, the multi-stage rod; 203e, the first hollow rod; 203f, the second hollow rod; 203g, the third hollow rod; 203h, the solid rod; 203i, the air pipe; 203j, the first air vent; 203k, the second air vent; 203l, the first valve; 203m, the spring; 203n, the air pump; 204, the second sealing assembly; 204a, the slot; 204b, the open slot; 204c, the circular guide groove. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0032] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0033] Example 1

[0034] Reference Figure 1-2 , which is the first embodiment of the present invention, provides a casting device for precision castings, the device includes a main part 100, including a base 101, a slide rail 103 is fixedly connected to one side of the base 101, a slide seat 104 is slidably connected to the slide rail 103, a control cabinet 105 is fixedly connected to one side of the base 101, a motor 106 is installed on the control cabinet 105, and the motor 106 is located on one side of the slide rail 103, a mold part 200 is located on one side of the main part 100, the mold part 200 includes a first mold block 201 and a second mold block 202 located on one side of the base 101, a first sealing component 203 is installed on the side of the first mold block 201 facing the second mold block 202, a second sealing component 204 is installed on the side of the second mold block 202 facing the first mold block 201, and mold grooves 202a are opened on opposite sides of the first mold block 201 and the second mold block 202.

[0035] The base 101 supports the entire system. A set of symmetrical slide rails 103 are installed on one side of the base 101 to provide a guide for the smooth displacement of the slide seat 104. The slide seat 104 is designed to slide smoothly along the slide rails 103. This dynamic component ensures flexibility and positioning accuracy in the system.

[0036] The first mold block 201 and the second mold block 202 are precisely connected to perform the casting function. Specifically, the first mold block 201 is equipped with a first sealing component 203 on the side facing the second mold block 202, and the second sealing component 204 is installed at the corresponding position of the second mold block 202. This design is intended to achieve an excellent sealing effect when the two sides are in close contact to prevent leakage of molten metal during the casting process.

[0037] The first mold block 201 and the second mold block 202 are both cleverly machined into mold grooves 202a on opposite sides. When the two are precisely aligned and tightly fitted along a preset track, the two mold grooves 202a can be combined into a continuous and complete casting space. The next process involves injecting molten metal liquid into the formed mold cavity, using the shape of the mold to cool and solidify the molten metal, thereby manufacturing the required metal accessories.

[0038] The second mold block 202 moves smoothly along the slide rail 103 until it reaches a fully closed state with the first mold block 201. Combined with the exquisite cooperation of the first sealing component 203 and the second sealing component 204, the entire system not only ensures high stability during the casting process, but also greatly improves the sealing performance, effectively prevents the overflow of molten metal, and ensures the quality and production efficiency of the casting products.

[0039] Specifically, a hydraulic rod 202b is fixedly connected to the side of the second mold block 202 away from the first mold block 201, and the hydraulic rod 202b passes through a fixed back plate 202c, and the fixed back plate 202c is fixedly connected to the base 101. The fixed back plate 202c is located on the side of the second mold block 202 away from the first mold block 201, and two groups of fixed rods 202d are fixedly connected on both sides of the fixed back plate 202c. A fixed plate 201a is fixedly connected to the side of the first mold block 201 away from the second mold block 202, and one side of the fixed rod 202d is fixedly connected to the fixed plate 201a. Limit blocks 202e are fixedly connected to both sides of the second mold block 202, and the limit blocks 202e are located between the two fixed rods 202d. The sliding seat 104 is fixedly connected to the second mold block 202.

[0040] The operating mechanism of the device is further detailed as follows: a hydraulic rod 202b is configured on one side of the second mold block 202. The hydraulic rod 202b is not only fixedly connected to the end of the second mold block 202 away from the first mold block 201, but also penetrates a fixed back plate 202c. This back plate plays a supporting role and is firmly connected to the base 101, which cleverly enhances the stability of the overall structure. Two sets of fixed rods 202d are installed on both sides of the fixed back plate 202c, which form a solid frame to guide the movement of the mold block.

[0041] At the same time, a fixed plate 201a is fixedly installed on the other side of the first mold block 201, and the fixed plate 201a is connected to the fixed back plate 202c on one side of the second mold block 202 through the middle fixed rod 202d, forming a stable alignment and support structure. The hydraulic rod 202b directly passes through the fixed back plate 202c and is fixed to the center of the second mold block 202. This layout ensures that under the drive of hydraulic power, the second mold block 202 can move accurately and powerfully toward the first mold block 201, realizing the close docking of the two mold blocks.

[0042] In order to ensure the smoothness and accuracy of the second mold block 202 during movement, the sliding seat 104 is firmly fixed on the second mold block 202 and slides freely in the slide rail 103 on the base 101. This design greatly promotes the stability of the mold closing process. In addition, limit blocks 202e are specially set at both ends of the second mold block 202. These limit blocks 202e are just placed between the two sets of fixed rods 202d. When moving, they not only limit the travel range of the second mold block 202, but also provide an additional layer of motion control and positioning accuracy, thereby making the entire casting process more reliable and efficient. In this way, through the coordinated operation of hydraulic drive, slide rail 103 guidance, and fine limit and fixed structure, it is ensured that the first mold block 201 and the second mold block 202 can be accurately aligned and sealed, and the high-quality casting task of metal accessories is successfully completed.

[0043] Preferably, a liquid injection tube 201b is fixedly connected to one side of the first mold block 201 , and the liquid injection tube 201b flows into the mold groove 202a through the circulation tube 201c , and the outlet of the circulation tube 201c is located at the side of the mold groove 202a away from the base 101 .

[0044] When in use, one side of the first mold block 201 is specially equipped with a liquid injection pipe 201b, which smoothly guides the metal liquid into the mold groove 202a. It is worth noting that the outlet of the flow pipe 201c is arranged above the side of the mold groove 202a away from the base 101. Such a layout choice has a significant positive impact on the casting process and the quality of the final product.

[0045] When the first mold block 201 and the second mold block 202 are precisely aligned and ready to enter the casting stage, the metal liquid will start from the injection pipe 201b fixedly connected to the side of the second mold block 202, and the metal liquid will follow the guidance of the circulation pipe 201c and fill the mold groove 202a evenly and stably from its outlet at the top of the mold groove 202a. This design not only ensures the uniformity and integrity of the metal liquid filling process, but also effectively avoids the problem of bubbles or incomplete filling caused by improper injection position, thereby greatly improving the internal quality and surface finish of the casting product, making the cast metal accessories more perfect, and the yield and quality are doubled. Through this series of fine operations and designs, the entire casting process is not only efficient but also able to produce more perfect castings.

[0046] Example 2

[0047] Reference Figure 1 to Figure 7 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: a plurality of accommodating grooves 203a are provided on the first mold block 201, and a connecting groove 203b is provided on one side of each accommodating groove 203a. An airbag 203c is fixedly connected to the side of the first mold block 201 close to the second mold block 202, and the airbag 203c is located above the connecting groove 203b.

[0048] Furthermore, a multi-stage rod 203d is fixedly connected in the accommodating groove 203a, and the multi-stage rod 203d includes a first hollow rod 203e fixed to the accommodating groove 203a, a second hollow rod 203f slidably connected to the first hollow rod 203e, a third hollow rod 203g slidably connected to the second hollow rod 203f, and a solid rod 203h slidably connected to the third hollow rod 203g.

[0049] Furthermore, a groove is provided on the side wall of the first hollow rod 203e, an air pipe 203i is fixedly connected to the groove of the first hollow rod 203e, a connecting groove 203b is fixedly connected to the other end of the air pipe 203i, a first air hole 203j is provided on the bottom plate of the second hollow rod 203f near the side wall, and a second air hole 203k is provided on the bottom plate of the third hollow rod 203g near the side wall.

[0050] In the design of the first mold block 201, multiple functional structures are integrated to optimize the casting process. Specifically, a receiving groove 203a is opened on one side of the first mold block 201. These receiving grooves 203a are evenly distributed on the center lines of the four sides of the mold block. The number can be flexibly adjusted according to different mold requirements to adapt to various casting mold shapes. One side of each receiving groove 203a is connected to a connecting groove 203b. This design provides a passage for the inflation mechanism of the airbag 203c, allowing air to be effectively squeezed into the airbag 203c when needed, thereby playing a specific role in the casting process.

[0051] An innovative multi-stage rod 203d structure is installed inside the receiving groove 203a. The structure is complex and efficient, and consists of four levels of nested hollow and solid rods 203h: the first hollow rod 203e is fixed in the receiving groove 203a, followed by the second hollow rod 203f, the third hollow rod 203g, and the innermost solid rod 203h. This unique design allows air to be transmitted step by step inside the multi-stage rod 203d, and then compressed into the air bag 203c efficiently. It is worth noting that the side wall of the first hollow rod 203e is specially opened with a notch, and communicates with the connecting groove 203b through a fixed air pipe 203i, ensuring that the air flow path is unobstructed.

[0052] Furthermore, a first valve 2031, a second valve and a third valve are installed inside the airbag 203c. The first valve 2031, the second valve and the third valve have the same structure. The first valve 2031 is composed of two nested one-way valves.

[0053] When in use, the airbag 203c is cleverly inserted between the multi-stage rod 203d structure, and its design allows the number of nested layers of the multi-stage rod 203d and the number of nested airbags 203c to be flexibly adjusted according to specific needs to adapt to different casting conditions. The relationship between the nesting level of the multi-stage rod 203d and the number of valves (including the first, second and third valves) is the number of valves plus one, which reflects the flexibility and practicality of the design.

[0054] Among them, the airbag 203c is in a multi-stage nested form, and the airbag 203c includes the innermost first airbag chamber, the second airbag chamber on the outer layer of the first airbag chamber, the third airbag chamber on the outside of the second airbag chamber, and the fourth airbag chamber on the outside of the third airbag chamber. The first valve 203l is installed on the side wall of the first airbag chamber, the second valve is installed on the side wall of the second airbag chamber, and the third valve is installed on the side wall of the third airbag chamber. The fourth airbag chamber is controlled by two adjacent multi-stage rods 203d.

[0055] The number of the fourth bag air chamber is half of the number of the first bag air chamber, and the number of the first bag air chamber, the second bag air chamber and the third bag air chamber is the same. The fourth bag air chamber controlled by the two multi-stage rods 203d wraps the two third bag air chambers, and the installation position of the third valve is close to the end of the fourth bag air chamber. This design makes it possible for the gas to first inflate the end of the fourth bag air chamber when passing through the third valve, and finally the gas flows into the area between the two third bag air chambers. In this way, it is only necessary to detect the area between the third bag air chambers in the fourth bag air chamber to know whether the fourth bag air chamber is filled.

[0056] Each valve adopts an innovative double-check valve structure. The first valve 203l is composed of two nested check valves. The upper check valve can be easily opened when the airbag 203c needs to be inflated, allowing air to enter the first valve 203l, i.e. the first airbag air chamber, from the multi-stage rod 203d through the connecting groove 203b. When the air pressure accumulates to a sufficient level, the first check valve opens, and the air flows to the second airbag air chamber between the first valve 203l and the second valve. When the air pressure accumulates to a sufficient level, the second check valve opens, and the air continues to flow to the third airbag air chamber between the third valve and the second valve, and finally until the fourth airbag air chamber reaches saturation. This staged inflation mechanism ensures that air fills each chamber on demand and in an orderly manner, maintaining the stability and efficiency of the system.

[0057] During operation, as the second mold block 202 applies pressure to the first mold block 201, the solid rod 203h is gradually pushed into the third hollow rod 203g. During this process, the air in the third hollow rod 203g is squeezed through the second vent hole 203k at the bottom edge of the third hollow rod 203g and is directly sent into the first balloon air chamber in the airbag 203c through the air pipe 203i. Air is retained in the first balloon air chamber. When the gas pressure in the first balloon air chamber is sufficient to push the first valve 203l, the gas enters the second balloon air chamber. As the pressure further increases, the solid rod 203h and the third hollow rod 203g continue to be pressed into the second hollow rod 203f. At this time, the first vent hole 203j at the bottom edge of the second hollow rod 203f comes into play, squeezing the air in the second hollow rod 203f into the airbag 203c as well. In the bag 203c, the air flows into the second bag air chamber through the first bag air chamber. When the gas pressure in the second bag air chamber is sufficient to push the second valve, the gas enters the third bag air chamber. Finally, when the solid rod 203h, the third hollow rod 203g and even the first hollow rod 203e are all compressed to the limit, the air accumulated inside the first hollow rod 203e is also effectively transferred to the third bag air chamber inside the air bag 203c through the above mechanism. When the gas pressure in the third bag air chamber is sufficient to push the third valve, the gas enters the fourth bag air chamber. The two adjacent multi-stage rods 203d act together on the fourth bag air chamber. It is only necessary to detect whether the fourth bag air chamber meets the standard to detect whether the entire bag 203c is filled. Similarly, when the air in the retaining wall 203c is not filled, it is only necessary to input air into the fourth bag air chamber.

[0058] More importantly, the eccentric design of the first vent hole 203j and the second vent hole 203k (i.e., close to the connection between the first hollow rod 203e and the air pipe 203i) greatly accelerates the efficiency of air flow, ensuring that the air bag 203c can be quickly and fully expanded, thereby accurately controlling the pressure distribution inside the mold and improving the quality of the casting. The direct connection design of the air pipe 203i seals the air transmission path, effectively preventing air leakage and ensuring the stability and efficiency of the entire inflation system. This series of sophisticated mechanical designs have jointly contributed to a responsive and precisely controlled casting environment, providing strong technical support for the manufacture of high-quality metal accessories.

[0059] Furthermore, a spring 203m is fixedly connected between the first hollow rod 203e and the second hollow rod 203f, between the second hollow rod 203f and the third hollow rod 203g, and between the third hollow rod 203g and the solid rod 203h.

[0060] When the second mold block 202 is released from pressure, the built-in spring 203m immediately drives the multi-stage rod 203d to reset. At the same time, the reverse one-way valve on the valve plays a key role, guiding the air to flow back into the multi-stage rod 203d. This design simplifies the process of air pressure release and system recovery.

[0061] Example 3

[0062] Reference Figure 1 to Figure 7 , which is the third embodiment of the present invention, includes an air pump 203n fixedly connected between the two third valves on the air bag 203c, a clamping groove 204a fixedly connected to one side of the mold groove 202a on the second mold block 202, the clamping groove 204a cooperates with the air bag 203c, an opening groove 204b is opened on the clamping groove 204a, the air pump 203n slides in the opening groove 204b, a circular guide groove 204c is opened on one side of the mold groove 202a, and the circular guide groove 204c cooperates with the solid rod 203h.

[0063] During the casting operation, the mold groove 202a on the side of the second mold block 202 is fixed with a slot 204a, which is precisely matched with the air bag 203c, and the open slot 204b on the slot 204a provides a track for the sliding of the air pump 203n, ensuring that the air pump 203n can move smoothly as the air bag 203c is inflated. In addition, the circular guide groove 204c on the side of the mold groove 202a is precisely docked with the solid rod 203h, which not only guides the sliding track of the multi-stage rod 203d, but also further limits the movement range of the second mold block 202, ensuring the accuracy of the operation and the close fit between the molds.

[0064] It is particularly worth mentioning that the number of air pumps 203n is consistent with the number of air chambers in the fourth bladder body. The design of the air pump 203n fixedly connected between the two third valves of the air bag 203c realizes the intuitive monitoring and manual intervention function of the inflation state of the air bag 203c. When the air bag 203c is not fully filled, the lower part of the air pump 203n is still visible, and the operator can directly rotate the air pump 203n to replenish the air bag 203c until the air pump 203n is completely hidden in the air bag 203c, indicating that the air bag 203c has been fully inflated, thereby ensuring the sealing between the molds and providing reliable guarantee for the casting of high-quality metal accessories. The integration of this series of exquisite designs not only optimizes the control accuracy of the casting process, but also greatly improves the convenience and efficiency of the casting operation.

[0065] In summary, the device is based on the base 101, and through the cooperation of the slide rail 103 and the sliding seat 104, a stable and adjustable platform is provided for the movement of the second mold block 202. The hydraulic rod 202b provides power. The first mold block 201 and the second mold block 202 are designed with a precise sealing component to ensure the sealing after docking, and the relative position of the mold groove 202a forms a complete casting space after closing.

[0066] The second mold block 202 is driven by the hydraulic rod 202b to move smoothly along the slide rail 103 until it is completely closed with the first mold block 201. At the same time, the smooth sliding of the sliding seat 104 and the precise positioning of the limit block 202e ensure the accuracy and stability of the closing process.

[0067] A receiving groove 203a and an airbag 203c are provided at a specific position of the first mold block 201. Through the cooperation of the multi-stage rod 203d structure and the air pipe 203i, as well as the staged control of the valve, the airbag 203c is accurately inflated. The air is transmitted step by step through the connecting groove 203b and the multi-stage rod 203d, and finally enters the airbag 203c, ensuring the precise control of the pressure inside the mold. The inflation degree of the airbag 203c can be judged and adjusted by the air pump 203n and intuitive observation to achieve the best sealing effect.

[0068] The molten metal is accurately and evenly injected into the mold groove 202a through the injection pipe 201b and the circulation pipe 201c fixed on one side of the first mold block 201, and the mold shape is used to complete the cooling and solidification of the molten metal to form the required metal accessories.

[0069] After the metal fitting is cast, the second mold block 202 returns to its original position, and a casting cycle is completed by releasing the hydraulic pressure or the action of the spring 203m. During this process, the air in the airbag 203c can be effectively released to prepare for the next round of casting.

[0070] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0071] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0072] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A casting device for precision castings, characterized in that: include, The main body component (100) comprises a base (101), one side of the base (101) is fixedly connected to a slide rail (103), a slide seat (104) is slidably connected to the slide rail (103), one side of the base (101) is fixedly connected to a control cabinet (105), a motor (106) is installed on the control cabinet (105), and the motor (106) is located on one side of the slide rail (103); A mold component (200) is located on one side of the main body component (100), the mold component (200) comprises a first mold block (201) and a second mold block (202) located on one side of the base (101), a first sealing component (203) is installed on the side of the first mold block (201) facing the second mold block (202), a second sealing component (204) is installed on the side of the second mold block (202) facing the first mold block (201), and mold grooves (202a) are provided on opposite sides of the first mold block (201) and the second mold block (202); The first sealing assembly (203) comprises a plurality of accommodating grooves (203a) provided on the first mold block (201), a connecting groove (203b) provided on one side of each accommodating groove (203a), an air bag (203c) fixedly connected to a side of the first mold block (201) close to the second mold block (202), and the air bag (203c) is located above the connecting groove (203b); A multi-stage rod (203d) is fixedly connected in the containing groove (203a), and the multi-stage rod (203d) comprises a first hollow rod (203e) fixed to the containing groove (203a); The first hollow rod (203e) has a groove on its side wall, an air pipe (203i) is fixedly connected to the groove on the first hollow rod (203e), and the other end of the air pipe (203i) is fixedly connected to the connecting groove (203b); the airbag (203c) is in a multi-stage nested form, the airbag (203c) comprises an innermost first sac air chamber, a second sac air chamber on the outer layer of the first sac air chamber, a third sac air chamber on the outer side of the second sac air chamber, a fourth sac air chamber on the outer side of the third sac air chamber, a first valve (203l) installed on the side wall of the first sac air chamber, a second valve installed on the side wall of the second sac air chamber, a third valve installed on the side wall of the third sac air chamber, and the fourth sac air chamber is controlled by two adjacent multi-stage rods (203d); The first valve (203l), the second valve and the third valve have the same structure; the first valve (203l) is composed of two nested one-way valves; and an air pump (203n) is fixedly connected between the two third valves on the air bag (203c).

2. The casting device for precision casting according to claim 1, characterized in that: A hydraulic rod (202b) is fixedly connected to a side of the second mold block (202) away from the first mold block (201); the hydraulic rod (202b) passes through a fixed back plate (202c); the fixed back plate (202c) is fixedly connected to the base (101); and the fixed back plate (202c) is located on a side of the second mold block (202) away from the first mold block (201).

3. The casting device for precision casting according to claim 2, characterized in that: Two groups of fixing rods (202d) are fixedly connected to both sides of the fixing back plate (202c); a fixing plate (201a) is fixedly connected to the side of the first mould block (201) away from the second mould block (202); one side of the fixing rod (202d) is fixedly connected to the fixing plate (201a); and limiting blocks (202e) are fixedly connected to both sides of the second mould block (202); the limiting blocks (202e) are located between the two fixing rods (202d).

4. The casting device for precision casting according to claim 3, characterized in that: The sliding seat (104) is fixedly connected to the second mold block (202).

5. The precision casting device according to any one of claims 1 to 4, characterized in that: A liquid injection tube (201b) is fixedly connected to one side of the first mold block (201), and the liquid injection tube (201b) flows into the mold groove (202a) through a circulation tube (201c), and an outlet of the circulation tube (201c) is located on a side of the mold groove (202a) away from the base (101).

6. The precision casting device according to claim 5, characterized in that: The multi-stage rod (203d) comprises a second hollow rod (203f) slidably connected to the first hollow rod (203e), a third hollow rod (203g) slidably connected to the second hollow rod (203f), and a solid rod (203h) slidably connected to the third hollow rod (203g); a spring (203m) is fixedly connected between the first hollow rod (203e) and the second hollow rod (203f), between the second hollow rod (203f) and the third hollow rod (203g), and between the third hollow rod (203g) and the solid rod (203h).

7. The casting device for precision casting according to claim 6, characterized in that: The bottom plate of the second hollow rod (203f) is provided with a first ventilation hole (203j) near the side wall, and the bottom plate of the third hollow rod (203g) is provided with a second ventilation hole (203k) near the side wall.

8. The casting device for precision casting according to claim 7, characterized in that: The second sealing component (204) comprises a clamping groove (204a) fixedly connected to one side of the mold groove (202a), the clamping groove (204a) matching with the air bag (203c), an opening groove (204b) being provided on the clamping groove (204a), the air pump (203n) sliding in the opening groove (204b), a circular guide groove (204c) being provided on one side of the mold groove (202a), the circular guide groove (204c) matching with the solid rod (203h).

Images