Double-station low-temperature wax injection machine

Abstract

The utility model relates to precision casting equipment technical field discloses a double -position low -temperature wax injection machine, including machine body, platen, wax material processing system and wax injection system, and the first station and second station are fixedly connected in parallel on the platen, two stations all include the installation platform for installing mould, positioning assembly and mould closing assembly, and the wax injection system is movably arranged on the machine body, can move between the first station and the second station, and selectively carries out wax injection operation to the mould of one station. The scheme solves the problem that the existing single -station wax injection machine leads to equipment idling, low production efficiency because of waiting wax mould cooling, through wax injection and cooling at one station, the operator can take out and dress the mould at the other station, realizes seamless connection of production process, greatly shortens single -piece production cycle, and significantly improves equipment utilization and overall capacity.

Description

Technical Field

[0001] This utility model relates to the field of precision casting equipment technology, and in particular to a dual-station low-temperature wax injection machine. Background Technology

[0002] Precision casting, also known as investment casting, is an advanced metal forming process in modern industry. Its primary and crucial step is the creation of high-quality investment patterns, or wax patterns. The dimensional accuracy, surface finish, and internal density of the wax pattern directly determine the quality of the final metal casting. Automated wax injection machines, as key equipment for achieving efficient and precise wax pattern production, have a profound impact on the entire precision casting process due to their structural design and operational efficiency.

[0003] Currently, most automated wax injection machines on the market are single-station designs. Their workflow typically involves the operator installing and fixing a mold onto the machine's single worktable, after which the machine automatically performs actions such as mold closing, wax injection, and pressure holding. After wax injection, to ensure the wax mold is fully formed and has sufficient strength for removal, the wax must undergo an essential cooling and solidification stage within the mold cavity.

[0004] However, it is precisely during this necessary cooling and solidification period that the structural defects of the single-station wax injection machine become apparent. Throughout the cooling phase, although the core actions such as wax injection have already been completed, the mold remains occupied and closed, preventing operators from performing any effective operations, such as removing the formed wax mold or installing a new mold. This directly leads to both the equipment and operators being idle and waiting, resulting in significant downtime. This cooling waiting time often occupies a large portion of a single work cycle, severely restricting the overall production efficiency of the machine and creating a bottleneck in the entire production cycle.

[0005] Therefore, this utility model proposes a dual-station low-temperature wax injection machine to overcome the shortcomings of the prior art. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a dual-station low-temperature wax injection machine, which aims to improve the problem in the existing single-station wax injection machine where both the equipment and operators are in an ineffective waiting state during the cooling and shaping stage after wax injection, resulting in low overall production efficiency and long production cycle.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A dual-station low-temperature wax injection machine includes a machine body, a platform fixedly connected to the upper part of the machine body, a wax processing system fixedly installed on the platform, and a wax injection system; the dual-station low-temperature wax injection machine also includes a first station and a second station fixedly connected side by side to the top surface of the platform.

[0008] The wax processing system includes a wax tank for holding wax and a stirring component for stirring the wax in the wax tank. The wax injection system includes a wax pressing cylinder connected to the wax tank via a pipe and a nozzle connected to the wax pressing cylinder.

[0009] Furthermore, both the first and second workstations include a mounting platform for placing the mold, a positioning component for positioning the mold, and a mold closing component for closing and opening the mold. The wax injection system is designed to be movably mounted on the machine body, and its structure can move between the first and second workstations and selectively dock with the mold of one of the workstations to perform wax injection operations.

[0010] Preferably, the positioning component includes a positioning groove disposed on the mounting platform, a positioning pin passing through the mounting platform, and a fixing member for locking, and the mold is provided with a positioning hole that cooperates with the positioning pin.

[0011] Preferably, the mold closing assembly includes a cylinder, a mold closing plate connected to the cylinder drive end, and a guide rod for guiding the smooth movement of the mold closing plate.

[0012] Preferably, the stirring assembly includes a speed reducer, a rotating shaft driven by the speed reducer, and stirring blades fixedly connected to the rotating shaft.

[0013] Preferably, the wax injection system further includes a wax delivery cylinder, the inlet of which is connected to the wax tank and the outlet of which is connected to the wax pressing cylinder.

[0014] Preferably, the wax barrel has an inner and outer double-layer jacket structure for water insulation.

[0015] Preferably, the machine body is provided with a guide rail, and the wax injection system is installed on the guide rail by a sliding connection.

[0016] Preferably, the dual-station low-temperature wax injection machine further includes an electrical control mechanism, which is electrically connected to the mold closing assembly of the first station and the second station, the stirring assembly, and the wax injection system, respectively, to control their coordinated operation.

[0017] This utility model has the following beneficial effects: 1. In this utility model, by setting up a first station and a second station side by side, and enabling the wax injection system to move between these two stations to alternately perform wax injection operations, the problem of existing single-station wax injection machines having to stop and wait during wax injection and cooling, making it impossible to perform part removal or mold installation operations, resulting in a large amount of invalid waiting time, is solved. This achieves the technical effect that when one station is working, the other station can simultaneously perform auxiliary operations, realizing continuous production, thereby significantly shortening the overall production cycle of the product and significantly improving the utilization rate and production efficiency of the equipment.

[0018] 2. In this utility model, by setting a positioning component consisting of a positioning groove, a positioning pin, and a fixing component, and a mold closing component consisting of a cylinder, a guide rod, and a mold closing plate, the problem of inaccurate manual alignment or unstable fixing of simple clamps, which easily leads to displacement of the mold during wax injection and affects the dimensional accuracy and consistency of the wax mold, is solved. The technical effect of rapid, accurate, and stable automated positioning and clamping of the mold is achieved, ensuring a high degree of consistency in the forming accuracy of each wax mold in mass production and improving the stability of product quality. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of a dual-station low-temperature wax injection machine proposed in this utility model; Figure 2 This is a side view of a dual-station low-temperature wax injection machine proposed in this utility model; Figure 3 This is a schematic diagram of the mold closing assembly of a dual-station low-temperature wax injection machine proposed in this utility model; Figure 4 This is a schematic diagram of the stirring assembly of a dual-station low-temperature wax injection machine proposed in this utility model; Figure 5 This is a schematic diagram of the positioning component of a dual-station low-temperature wax injection machine proposed in this utility model.

[0020] Legend: 1. Machine body; 2. Platform; 3. Mounting platform; 4. Mold; 5. Positioning assembly; 501. Positioning groove; 502. Positioning pin; 503. Fixing component; 504. Positioning hole; 6. Mold closing assembly; 601. Cylinder; 602. Guide rod; 603. Mold closing plate; 7. Mixing assembly; 701. Reducer; 702. Rotating shaft; 703. Mixing blade; 8. Electrical control mechanism; 9. Wax tank; 10. Nozzle; 11. Wax delivery cylinder; 12. Wax pressing cylinder. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please refer to Figures 1 to 5 This utility model provides a dual-station low-temperature wax injection machine, which aims to solve the problem that existing single-station wax injection machines cannot perform mold changing operations simultaneously during wax injection and cooling due to structural limitations, resulting in idle equipment and long production cycles.

[0023] like Figure 1 and Figure 2 As shown, the dual-station low-temperature wax injection machine includes a body 1 and a platform 2 fixedly connected to the upper part of the body 1. The body 1 serves as the mounting base for the entire device, providing stable support for each component, while the platform 2 is used to support the main working components of the equipment.

[0024] The top surface of the platform 2 is fixedly connected with a first station and a second station with the same structure. These two stations are used to alternately perform the installation and wax injection of the mold 4. A wax processing system is also fixedly installed on the platform 2. This wax processing system provides prepared wax liquid to the two stations. In addition, the equipment also includes a wax injection system, which is movably set on the machine body 1. Its structure is designed to move back and forth between the first station and the second station and can selectively dock with the mold 4 in one of the stations to perform the wax injection operation. While wax injection or cooling and shaping is being performed at one station, the operator can perform the operation of picking up parts or installing new molds at the other station, thereby realizing continuous production and significantly improving equipment utilization.

[0025] Specifically, the wax processing system includes a wax tank 9 for containing and heating wax, and a stirring component 7 for stirring the wax inside the wax tank 9 to ensure that the wax liquid temperature is uniform and free of sediment. As the wax liquid preparation and supply center, the wax processing system continuously provides qualified wax liquid for subsequent processes. The wax injection system includes a wax pressing cylinder 12 connected to the wax tank 9 through a pipe, and a nozzle 10 connected to the wax pressing cylinder 12. The wax pressing cylinder 12 is used to pressurize the wax liquid delivered from the wax processing system for a second time, and the nozzle 10 is used to accurately inject the high-pressure wax liquid into the cavity of the mold 4. Both the first station and the second station include a mounting platform 3 for supporting the mold 4, a positioning component 5 for accurately positioning the mold 4, and a mold closing component 6 for realizing the automatic opening and closing of the mold 4.

[0026] To achieve the above-mentioned technical solution of dual-station collaborative operation, the specific structure of each station in this embodiment, especially its mold positioning and mold closing mechanism, forms the core of achieving high-precision automated operation.

[0027] Please refer to the following carefully. Figure 3 and Figure 5 The core structure of a single workstation will be described in detail below: Each mounting platform 3 has a positioning groove 501 on its top surface that matches the shape of the bottom of the mold 4. When the mold 4 is placed, the positioning groove 501 provides initial positioning. A positioning pin 502 is also vertically fixed on the mounting platform 3. The mold 4 has a corresponding positioning hole 504 that can pass through the positioning pin 502. After the mold 4 is fitted onto the positioning pin 502 through the positioning hole 504, the fixing part 503 is detachably installed on the top of the positioning pin 502, thereby firmly pressing and fixing the mold 4 on the mounting platform 3. This positioning and locking structure, which combines grooves, pins, holes and fixing parts, ensures the uniqueness and stability of the position of the mold 4 on the mounting platform 3, providing a basic guarantee for subsequent high-precision wax injection.

[0028] In addition, each workstation is equipped with a mold clamping assembly 6. Please refer to this for details. Figure 3 The mold closing assembly 6 includes a cylinder 601 as a power source, a mold closing plate 603 that directly contacts the mold 4, and a guide rod 602 for providing precise guidance. The cylinder body of the cylinder 601 is fixed on a specific bracket of the machine body 1, and the driving end of its piston rod is fixedly connected to the mold closing plate 603. The guide rod 602 is arranged parallel to both sides of the cylinder 601, with one end fixed and the other end passing through the guide hole on the mold closing plate 603 and slidingly connected to it. When the cylinder 601 is activated, under the precise guidance of the guide rod 602, the mold closing plate 603 can move smoothly toward or backward toward the mold 4, thereby completing the automatic closing and opening of the mold 4. This structure ensures the stability and repeatability of the mold closing process, creating conditions for forming a closed and intact wax injection cavity.

[0029] Based on the above embodiments, the present invention may further include the following preferred technical solutions: As a preferred embodiment, to ensure that the wax is always in a uniformly molten state before waxing, please refer to... Figure 4 The stirring component 7 in the wax processing system specifically includes a reducer 701 fixedly installed on the top of the wax tank 9, a rotating shaft 702 rotatably connected to the output end of the reducer 701 and extending downward into the interior of the wax tank 9, and a stirring blade 703 fixedly connected to the lower end of the rotating shaft 702. The reducer 701 drives the rotating shaft 702 and the stirring blade 703 to rotate continuously, thereby achieving full stirring of the wax liquid.

[0030] As another preferred embodiment, in order to achieve stable delivery of wax liquid from wax barrel 9 to wax pressing cylinder 12, the wax injection system further includes a wax delivery cylinder 11. The inlet of the wax delivery cylinder 11 is connected to the bottom of wax barrel 9 through a pipe, and its outlet is connected to the inlet of wax pressing cylinder 12 through a pipe, thus forming a complete passage for wax liquid delivery.

[0031] As another preferred embodiment, in order to accurately control the low temperature of the wax material, the wall of the wax tank 9 adopts an inner and outer double-layer jacket structure for water insulation. The hot water circulating in the jacket structure can provide a uniform and constant temperature for the wax material, meeting the process requirements of low-temperature waxing.

[0032] As a further preferred embodiment, in order to specifically realize the movement function of the wax injection system between the first station and the second station, a guide rail is horizontally fixedly connected to the body 1 along the arrangement direction of the two stations. The entire wax injection system is mounted on the guide rail in a sliding connection manner through components such as sliders, so that it can move accurately and align with any station under the action of the linear drive device.

[0033] In another preferred embodiment, in order to achieve automated and coordinated control of all components of the machine, the dual-station low-temperature wax injection machine also includes an electrical control mechanism 8. The electrical control mechanism 8 is electrically connected to the mold closing assembly 6 of the first station and the second station, the stirring assembly 7 of the wax material processing system, and the wax conveying cylinder 11 and the wax pressing cylinder 12 of the wax injection system via cables, so as to perform programmed control of the entire process of alternating operation of the dual stations.

[0034] Working principle: First, the operator places the mold 4 to be waxed on the mounting platform 3 of the first and second stations respectively, and performs preliminary alignment through the positioning groove 501. Then, the positioning pin 502 passes through the positioning hole 504 on the mold 4 and is locked with the fastener 503 to complete the precise positioning and installation of the mold 4 on the two stations. At the same time, the wax tank 9 in the wax processing system maintains a constant low temperature under the water temperature action of the inner and outer double-layer jacket structure. The stirring component 7, driven by the reducer 701, drives the stirring blade 703 to rotate continuously through the rotating shaft 702 to fully stir the wax liquid and ensure its uniform state.

[0035] When the equipment is started, the electrical control mechanism 8 first controls the mold closing assembly 6 of the first station to move. Its cylinder 601 drives the mold closing plate 603 to move forward under the guidance of the guide rod 602, and smoothly closes the mold 4. Then, the electrical control mechanism 8 controls the movable wax injection system to move above the first station and complete the docking. The wax delivery cylinder 11 draws the wax liquid in the wax barrel 9 and delivers it to the wax pressing cylinder 12. After the wax pressing cylinder 12 pressurizes, it injects the high temperature wax liquid into the cavity of the closed mold 4 of the first station through the nozzle 10. After the wax injection is completed, the first station enters the pressure holding, cooling and shaping stage.

[0036] During the wax injection and cooling process at the first station, operators can safely operate at the second station. For example, they can remove the wax mold from the previous cycle that has finished cooling and install a new mold 4 to be injected with wax. When the wax mold at the first station has finished cooling, its mold closing component 6 automatically opens the mold 4. The electrical control mechanism 8 immediately controls the wax injection system to slide along the guide rail to the ready second station and repeat the actions of mold closing, docking, and wax injection. During this period, operators can go to the first station to pick up parts and install molds. Through this dual-station alternating and parallel operation mode, the equipment downtime caused by waiting for cooling at a single station is completely eliminated, and seamless connection of the production process is achieved.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dual-station low-temperature wax injection machine, comprising: Body (1); Platform (2), which is fixedly connected to the upper part of the body (1); A wax processing system, which is fixedly installed on the platform (2) and includes a wax tank (9) for holding wax and a stirring assembly (7) for stirring the wax in the wax tank (9). The wax injection system includes a wax cylinder (12) connected to the wax tank (9) via a pipe and a nozzle (10) connected to the wax cylinder (12). Its features are, The dual-station low-temperature wax injection machine also includes a first station and a second station that are fixedly connected side by side to the top surface of the table (2). The first station and the second station each include a mounting platform (3) for placing the mold (4), a positioning component (5) for positioning the mold (4), and a mold closing component (6) for closing and opening the mold (4). Furthermore, the wax injection system is movably mounted on the machine body (1) to move between the first station and the second station, and selectively docks with the mold (4) at one of the stations to perform wax injection operations.

2. The dual-station low-temperature wax injection machine according to claim 1, characterized in that: The positioning component (5) includes a positioning groove (501) disposed on the mounting platform (3), a positioning pin (502) passing through the mounting platform (3), and a fastener (503) for locking, and the mold (4) is provided with a positioning hole (504) that cooperates with the positioning pin (502).

3. The dual-station low-temperature wax injection machine according to claim 1, characterized in that: The mold assembly (6) includes a cylinder (601), a mold plate (603) connected to the drive end of the cylinder (601), and a guide rod (602) for guiding the mold plate (603) to move smoothly.

4. A dual-station low-temperature wax injection machine according to claim 1, characterized in that: The stirring assembly (7) includes a speed reducer (701), a rotating shaft (702) driven to rotate by the speed reducer (701), and stirring blades (703) fixedly connected to the rotating shaft (702).

5. A dual-station low-temperature wax injection machine according to claim 1, characterized in that: The wax injection system also includes a wax delivery cylinder (11), the inlet of which is connected to the wax barrel (9), and the outlet of which is connected to the wax pressing cylinder (12).

6. A dual-station low-temperature wax injection machine according to claim 1, characterized in that: The wax barrel (9) has an inner and outer double-layer jacket structure for water insulation.

7. A dual-station low-temperature wax injection machine according to claim 1, characterized in that: The body (1) is provided with a guide rail, and the wax injection system is installed on the guide rail by means of a sliding connection.

8. A dual-station low-temperature wax injection machine according to claim 1, characterized in that: It also includes an electrical control mechanism (8), which is electrically connected to the mold closing assembly (6) of the first station and the second station, the stirring assembly (7) and the wax injection system respectively, so as to control their coordinated actions.

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