Integral injection chamber of cold type die casting machine

Abstract

The utility model provides an integral injection chamber of a cold die-casting machine, which belongs to the field of metal part processing and comprises a pressure chamber shell, a water cooling component is arranged on one side of the pressure chamber shell, and a sealing component is arranged on one side of the water cooling component. The water cooling assembly comprises a feeding port, a pressure chamber inner cavity, a water cooling cavity, a water inlet, a water outlet and a sealing cover, a cooling circulation system is arranged in the pressure chamber shell, heat generated in the injection process is effectively taken away, the temperature of equipment is reduced, and therefore the die casting efficiency and the product quality are improved, and meanwhile the service life of the equipment is prolonged. The sealing assembly ensures the sealing performance in the injection process through the structural design, leakage and entering of external impurities are prevented, stable operation of equipment is ensured, and the reliability is improved.

Description

Technical Field

[0001] This utility model relates to the field of metal parts processing, and more specifically, to an integral injection chamber for a cold die casting machine. Background Technology

[0002] Die casting, as a special casting method, has advantages such as high production efficiency, high precision, high surface quality of castings, small wall thickness, and short production cycle. The molten metal in the pressure chamber fills the entire casting under the high speed and high pressure of the punch. The stability when filling with high speed and high pressure becomes the main factor determining the quality of die castings.

[0003] In existing technologies, traditional external cooling systems suffer from shrinkage cavities due to the mismatch between the straight flow channel design and the axial temperature gradient inside the pressure chamber; welded cooling pipes with thermal barrier layers result in heat transfer efficiency of less than 60% of the standard value; and rigid sealing structures cannot compensate for the 0.3mm thermal expansion under operating conditions of 150-300℃, leading to frequent interface leaks. To address this, an integral injection chamber for cold die casting machines is proposed. Utility Model Content

[0004] The purpose of this invention is to address the following issues: In existing traditional external cooling systems, the mismatch between the straight flow channel design and the axial temperature gradient inside the pressure chamber leads to localized overheating and shrinkage cavities in the castings; the thermal barrier layer of the welded cooling pipe results in a heat transfer efficiency of less than 60% of the standard value; and the rigid sealing structure cannot compensate for the 0.3mm thermal expansion under operating conditions of 150-300℃, leading to frequent interface leaks.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0006] The integrated injection chamber of the cold die casting machine is designed to improve the above-mentioned problems.

[0007] The present invention is as follows: it includes a pressure chamber shell, a water cooling component is provided on one side of the pressure chamber shell, and a sealing component is provided on one side of the water cooling component;

[0008] The water-cooling assembly includes a feed inlet, a pressure chamber cavity, a water-cooling cavity, a water inlet, a water outlet, and a cover. The feed inlet is located at the top of the pressure chamber shell, the pressure chamber cavity is located below the feed inlet, the water-cooling cavity is located inside the pressure chamber shell, the water inlet is located at the top of the pressure chamber shell, the water outlet is located at the bottom of the pressure chamber shell, and the cover is bolted to one side of the pressure chamber shell. The interiors of the water inlet and the water outlet are respectively connected to the interior of the water-cooling cavity.

[0009] As a preferred technical solution of this utility model, the sealing assembly includes a protrusion, a support rod, and an inner cover of the pressure chamber. The protrusion is disposed on one side of the cover and the other end is snapped into one side of the outer shell of the pressure chamber. The support rod is disposed on the inner side wall of the cover. The inner cover of the pressure chamber is disposed on one side of the support rod. The inner cover of the pressure chamber and the inner cavity of the pressure chamber are combined to form a complete cavity.

[0010] As a preferred technical solution of this utility model, the two sides of the pressure chamber shell are provided with lifting plates, the top of the lifting plate is provided with a lifting hole, the lifting hole extends to the bottom of the lifting plate, and the top of the lifting hole is circular.

[0011] As a preferred technical solution of this utility model, the top of the pressure chamber shell is provided with a limiting platform for positioning when installed inside the die-casting machine body, and the cross-sectional shape of the limiting platform is trapezoidal.

[0012] As a preferred technical solution of this utility model, the top of the pressure chamber shell is provided with a vent hole, the bottom end of the vent hole extends into the interior of the pressure chamber, and the top of the vent hole is circular.

[0013] As a preferred technical solution of this utility model, the bottom of the pressure chamber shell is provided with a plurality of heat dissipation fins, the plurality of heat dissipation fins are evenly distributed on the bottom of the pressure chamber shell, and the distance between two adjacent heat dissipation fins is 5mm.

[0014] As a preferred technical solution of this utility model, a rubber damping pad is provided at the bottom of the hoisting plate, and the thickness of the rubber damping pad is 2mm.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. By incorporating a water-cooling assembly, a highly efficient cooling circulation system is formed by setting up a water-cooling cavity inside the injection chamber shell and connecting it to the inlet and outlet. During the injection process, cooling water enters the water-cooling cavity through the inlet, exchanges heat with the heat inside the injection chamber shell, and then flows out through the outlet, thus quickly removing the heat generated during injection. This design not only effectively reduces the temperature of the injection chamber, improving die-casting efficiency and product quality, but also extends the service life of the equipment and reduces material aging and performance degradation caused by high temperatures.

[0017] 2. Through the design of the sealing components, the sealing performance of the injection chamber is ensured by the structural design. The interlocking structure between the protrusion and the outer shell of the injection chamber effectively prevents leakage. The support rod enhances the stability of the inner cover of the injection chamber, avoiding seal failure caused by vibration or pressure changes. The inner cover and the inner cavity of the injection chamber combine to form a complete cavity, further ensuring the sealing of the injection process and preventing external impurities from entering the injection chamber. This design not only improves the reliability of the equipment but also ensures the stability of the injection process, thereby optimizing the die-casting effect. Attached Figure Description

[0018] Figure 1 A schematic diagram of the integral injection chamber of the cold die-casting machine provided by this utility model;

[0019] Figure 2 A left-side perspective sectional view of the integral injection chamber of the cold die-casting machine provided by this utility model;

[0020] Figure 3 A right-side structural schematic diagram of the integral injection chamber of the cold die-casting machine provided by this utility model;

[0021] Figure 4 A bottom view of the integral injection chamber of the cold die-casting machine provided by this utility model;

[0022] Figure 5 A schematic diagram of the cover and protrusion of the integral injection chamber of the cold die-casting machine provided by this utility model.

[0023] The diagram shows: 1. Pressure chamber outer shell; 2. Water cooling assembly; 3. Sealing assembly; 4. Lifting plate; 5. Lifting hole; 6. Limiting platform; 7. Vent hole; 8. Heat dissipation fins; 9. Rubber damping pad; 201. Feed inlet; 202. Pressure chamber inner cavity; 203. Water cooling cavity; 204. Water inlet; 205. Water outlet; 206. Cover; 301. Protrusion; 302. Support rod; 303. Pressure chamber inner cover. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0025] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0026] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] like Figure 1-5 As shown, this embodiment proposes an integral injection chamber for a cold die casting machine, including a chamber shell 1, a water cooling component 2 on one side of the chamber shell 1, and a sealing component 3 on one side of the water cooling component 2.

[0029] Figure 2 and Figure 5 As shown, the water-cooling assembly 2 includes a feed inlet 201, an inner cavity 202 of the pressure chamber, a water-cooling cavity 203, a water inlet 204, a water outlet 205, and a cover 206. The feed inlet 201 is located at the top of the pressure chamber shell 1, and the inner cavity 202 is located below the feed inlet 201. The water-cooling cavity 203 is located inside the pressure chamber shell 1. The water inlet 204 is located at the top of the pressure chamber shell 1, and the water outlet 205 is located at the bottom of the pressure chamber shell 1. The cover 206 is bolted to one side of the pressure chamber shell 1. The interiors of the water inlet 204 and the water outlet 205 are respectively connected to the interior of the water-cooling cavity 203. By setting the water-cooling cavity 203 inside the pressure chamber shell 1 and connecting it with the water inlet 204 and the water outlet 205, a highly efficient cooling system is formed. This design can quickly remove the heat generated during the injection process, effectively reducing the temperature of the inner cavity 202 of the pressure chamber, thereby improving the efficiency of the die-casting process and the product quality. Meanwhile, the uniform heat dissipation characteristics of the water-cooled cavity 203 can also extend the service life of the equipment and reduce material aging and performance degradation caused by high temperature.

[0030] like Figure 2 and Figure 5As shown, the sealing assembly 3 includes a protrusion 301, a support rod 302, and an inner pressure chamber cover 303. The protrusion 301 is located on one side of the cover 206, and its other end is snapped into one side of the pressure chamber outer shell 1. The support rod 302 is located on the inner wall of the cover 206, and the inner pressure chamber cover 303 is located on one side of the support rod 302. The inner pressure chamber cover 303 and the inner pressure chamber 202 combine to form a complete cavity. Through the cooperative design of the protrusion 301, the support rod 302, and the inner pressure chamber cover 303, the sealing performance of the inner pressure chamber 202 is ensured. The snap-fit ​​structure between the protrusion 301 and the pressure chamber outer shell 1 effectively prevents leakage, while the support rod 302 enhances the stability of the inner pressure chamber cover 303, avoiding seal failure due to vibration or pressure changes. This sealing design not only ensures the stability of the injection process but also prevents external impurities from entering the inner pressure chamber 202, thereby improving the reliability and service life of the equipment.

[0031] like Figure 1 As shown, lifting plates 4 are provided on both sides of the pressure chamber shell 1. Lifting holes 5 are provided at the top of the lifting plates 4, extending to the bottom of the lifting plates 4. The top of the lifting holes 5 is circular. This design makes the equipment easier to install and maintain. The circular lifting holes 5 can accommodate various lifting tools, improving installation efficiency. Furthermore, the structural design of the lifting plates 4 can distribute the force during lifting, preventing damage to the equipment due to improper lifting, thus ensuring the stability and safety of the equipment.

[0032] like Figure 1 As shown, a limiting platform 6 is provided on the top of the pressure chamber shell 1 for positioning during installation inside the die-casting machine body. The limiting platform 6 has a trapezoidal cross-section. This design provides precise positioning for the installation of the pressure chamber cavity 202 inside the die-casting machine body. The trapezoidal cross-section limiting platform 6 not only prevents the pressure chamber cavity 202 from shifting during installation but also ensures the installation accuracy of the equipment, thereby improving the stability and processing quality of the die-casting process.

[0033] like Figure 1 As shown, a vent 7 is provided on the top of the pressure chamber shell 1. The bottom end of the vent 7 extends into the interior of the pressure chamber 202, and the top of the vent 7 is circular. This design effectively discharges gas from the pressure chamber 202, preventing gas accumulation from affecting the die-casting process. The circular top design of the vent 7 also facilitates cleaning and maintenance, avoiding equipment malfunctions caused by gas residue. Furthermore, the rational layout of the vent 7 optimizes the airflow distribution within the pressure chamber 202, further improving die-casting efficiency.

[0034] like Figure 4 As shown, the bottom of the pressure chamber shell 1 is provided with several heat dissipation fins 8, which are evenly distributed on the bottom of the pressure chamber shell 1. The distance between two adjacent heat dissipation fins 8 is 5mm. This design can significantly improve the heat dissipation efficiency of the pressure chamber shell 1 by increasing the surface area and optimizing airflow, thus quickly dissipating the heat generated during equipment operation. The even distribution of the heat dissipation fins 8 also ensures uniform heat dissipation, avoiding equipment damage caused by localized overheating. This efficient heat dissipation design can ensure stable operation of the equipment in high-temperature environments and extend the service life of the equipment.

[0035] like Figure 3 As shown, a rubber damping pad 9 with a thickness of 2mm is installed at the bottom of the lifting plate 4. This design effectively absorbs the vibration and impact generated during the operation of the pressure chamber shell 1, reducing noise and fatigue damage caused by vibration. It ensures that the pressure chamber shell 1 remains stable during operation, thereby improving the precision of the die-casting process and product quality.

[0036] Specifically, in use, the integral pressure chamber of this cold die-casting machine has the following features: A feed inlet 201 is located at the top of the pressure chamber shell 1 for the injection material to enter; the pressure chamber 202 is located below the feed inlet 201 and is used to hold and inject the material. A water-cooled chamber 203 is located inside the pressure chamber shell 1, connected to an external cooling water circulation system via an inlet 204 and an outlet 205. Cooling water flows within the water-cooled chamber 203, quickly removing the heat generated during injection and effectively reducing the temperature of the pressure chamber 202, thereby improving die-casting efficiency and product quality, while extending the equipment's service life. A protrusion 301 engages with the pressure chamber shell 1, and a support rod 302 is fixed inside the cover 206. The inner cover 303 and the pressure chamber 202 combine to form a complete cavity, ensuring the sealing of the injection process, preventing leakage, and avoiding the entry of external impurities. The lifting plates 4 and circular lifting holes 5 on both sides of the pressure chamber shell 1 facilitate the lifting and installation of the equipment, while distributing the force during lifting to prevent damage due to improper lifting. The top limiting platform 6, with its trapezoidal cross-section design, provides precise positioning for the installation of the pressure chamber 202 inside the die-casting machine body, ensuring installation accuracy and operational stability. The top vent 7 is designed to expel gas from the pressure chamber 202, preventing gas accumulation from affecting the die-casting effect, while also optimizing the airflow distribution within the pressure chamber 202 to further improve die-casting efficiency. The heat dissipation fins 8 at the bottom, with their even distribution and optimized spacing design, significantly improve the heat dissipation efficiency of the pressure chamber shell 1, quickly dissipating the heat generated during equipment operation and ensuring stable operation in high-temperature environments. The rubber damping pads 9 at the bottom of the lifting plates 4 effectively absorb vibrations and impacts generated during the operation of the pressure chamber shell 1, reducing noise and fatigue damage caused by vibration, while ensuring the pressure chamber shell 1 remains stable during operation, thereby improving the precision of the die-casting process and product quality. Through the coordinated operation of the above components, the integral pressure chamber 202 of the cold die-casting machine achieves functions such as efficient cooling, precise positioning, stable sealing, optimized heat dissipation, and convenient installation, ensuring the high efficiency of the die-casting process and the reliability of the equipment.

[0037] All technical features in this embodiment can be freely combined according to actual needs.

[0038] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. An integral injection chamber for a cold die casting machine, comprising a chamber shell (1), characterized in that, A water-cooling assembly (2) is provided on one side of the pressure chamber shell (1), and a sealing assembly (3) is provided on one side of the water-cooling assembly (2); The water-cooling assembly (2) includes a feed inlet (201), a pressure chamber cavity (202), a water-cooling cavity (203), a water inlet (204), a water outlet (205), and a cover (206). The feed inlet (201) is located at the top of the pressure chamber shell (1). The pressure chamber cavity (202) is located below the feed inlet (201). The water-cooling cavity (203) is located inside the pressure chamber shell (1). The water inlet (204) is located at the top of the pressure chamber shell (1). The water outlet (205) is located at the bottom of the pressure chamber shell (1). The cover (206) is bolted to one side of the pressure chamber shell (1). The interiors of the water inlet (204) and the water outlet (205) are respectively connected to the interior of the water-cooling cavity (203).

2. The integral injection chamber of a cold die-casting machine according to claim 1, characterized in that, The sealing assembly (3) includes a protrusion (301), a support rod (302), and a pressure chamber cover (303). The protrusion (301) is located on one side of the cover (206), and the other end is snapped into one side of the pressure chamber shell (1). The support rod (302) is located on the inner side wall of the cover (206). The pressure chamber cover (303) is located on one side of the support rod (302). The pressure chamber cover (303) and the pressure chamber cavity (202) are combined to form a complete cavity.

3. The integral injection chamber of a cold die-casting machine according to claim 1, characterized in that, The outer shell (1) of the pressure chamber is provided with lifting plates (4) on both sides. The top of the lifting plate (4) is provided with a lifting hole (5) which extends to the bottom of the lifting plate (4). The top of the lifting hole (5) is circular.

4. The integral injection chamber of a cold die-casting machine according to claim 1, characterized in that, The top of the pressure chamber shell (1) is provided with a limiting platform (6) for positioning when installed inside the die casting machine body. The limiting platform (6) has a trapezoidal cross-sectional shape.

5. The integral injection chamber of a cold die-casting machine according to claim 1, characterized in that, The top of the pressure chamber shell (1) is provided with a vent hole (7), the bottom end of which extends into the interior of the pressure chamber cavity (202), and the top of the vent hole (7) is circular.

6. The integral injection chamber of a cold die-casting machine according to claim 1, characterized in that, The bottom of the pressure chamber shell (1) is provided with a number of heat dissipation fins (8), which are evenly distributed on the bottom of the pressure chamber shell (1), and the distance between two adjacent heat dissipation fins (8) is 5mm.

7. The integral injection chamber of a cold die-casting machine according to claim 3, characterized in that, The bottom of the hoisting plate (4) is provided with a rubber damping pad (9), and the thickness of the rubber damping pad (9) is 2mm.

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