Wax mould cooling and transferring device and using method thereof

Abstract

The invention discloses a wax mold cooling and transferring device and a using method thereof. The wax mold cooling and transferring device comprises a water storage tank, a feeding port is formed in one end of the top face, and a discharging port is formed in the other end of the top face; the material receiving mechanism is mounted on the top surface of the water storage tank and corresponds to one side of the material inlet, and the material receiving mechanism is positioned below a mold outlet of the wax injection machine so as to receive a wax mold; the material receiving mechanism can put the wax mold into the water storage tank; the rotary impeller is rotationally connected in the water storage tank to push water in the water storage tank to circularly flow so as to enable the wax mold to move towards the direction of the discharge hole; the fixed end of the jacking mechanism is fixed on the outer bottom wall of the reservoir, and the jacking end of the jacking mechanism jacks the wax mold from the discharge port; and the mold repairing table is fixed to the two sides, corresponding to the discharging opening, of the water storage tank so as to bear the jacked wax mold. According to the wax mold cooling and transferring device, wax mold cooling and transferring are integrated, the single-batch process time is shortened, the production efficiency is greatly improved, seamless connection of wax injection, cooling and wax repairing processes is achieved, the process waiting time is shortened, and a foundation is laid for full-process automation of wax mold production.

Description

Technical Field

[0001] This invention relates to the field of investment casting technology, and more specifically to a wax pattern cooling and transfer device and its usage method. Background Technology

[0002] During the wax model production process, after wax injection molding, the wax model needs to be manually removed from the wax injection machine and placed in a cooling tank to cool to the set temperature (25-30℃). After cooling, it is then manually transferred to the wax trimming process. The manual cooling and handling method has the following technical drawbacks:

[0003] 1. Manual transfer is time-consuming and labor-intensive. The cooling process for a single batch of wax molds (10-20 pieces) takes 15-20 minutes, resulting in low production efficiency. Furthermore, manual operation can easily cause the wax molds to be bumped or scratched, reducing the finished product qualification rate. 2. Cooling and transportation are separated. After the wax model cools, it is exposed to air for transportation. The temperature rises by 5-8℃, which can easily cause secondary deformation and affect the accuracy of subsequent wax repair. 3. The cooling pool is a static water body, and the wax molds are stacked, resulting in poor cooling uniformity, with local temperature differences exceeding ±3℃, and a high rate of shrinkage cavities and cracks. 4. Lack of automated connection mechanism, the wax injection, cooling and wax repair processes are disconnected, which cannot adapt to the needs of mass production on the production line, and the labor cost accounts for a high proportion (about 40% of the total cost of this process).

[0004] Therefore, how to provide a device that can simultaneously cool and transfer wax molds during the preparation process is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the present invention provides a wax mold cooling and transfer device and its usage method, which solves the problems of disconnect between wax mold preparation cooling and transfer and high labor costs in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A wax mold cooling and transfer device, comprising: A water storage tank, wherein an inlet is provided at one end of the top surface of the water storage tank and an outlet is provided at the other end of the top surface; A receiving mechanism is installed on the top surface of the water storage tank and on the side corresponding to the inlet. The receiving mechanism is located below the mold outlet of the wax injection machine to receive the wax mold. The receiving mechanism can be flipped or opened to allow the wax mold to be dropped into the water storage tank through the inlet. A rotating impeller is rotatably connected inside the water storage tank and corresponds to the lower part of the receiving mechanism to drive the water in the water storage tank to circulate and move the wax mold toward the discharge port; A lifting mechanism, wherein the fixed end of the lifting mechanism is fixed to the outer bottom wall of the water storage tank corresponding to the discharge port, and the lifting end penetrates the bottom wall of the water storage tank to lift the wax mold from the discharge port; A mold repair table, wherein there are multiple mold repair tables and they are fixed on both sides of the water storage tank corresponding to the discharge port to receive the wax mold after it is lifted.

[0007] The beneficial effects of this invention are as follows: after wax injection, the wax model is placed into a water storage tank via a receiving structure. A rotating impeller generates centrifugal force or axial thrust to circulate the water in the tank. During this flow, the water pushes the wax model towards the discharge port. Once the wax model reaches the discharge port, a lifting mechanism lifts it, and it is manually pushed onto a mold-repairing table for transfer. This invention integrates wax model cooling and transfer, enabling continuous wax model production when used with a wax injection machine. It improves production efficiency, has a high degree of automation, reduces manual labor, and lowers labor costs.

[0008] Preferably, the top surface of the water storage tank corresponding to both the inlet and outlet has an upwardly extending flange. This flange facilitates the installation of the receiving mechanism and allows the outlet to align with the mold repair table.

[0009] Preferably, the receiving mechanism is a tilting table, one end of which is hinged to the side wall of the protrusion corresponding to the feed inlet. The wax mold can be placed into the water storage tank by tilting the table.

[0010] Preferably, the receiving mechanism is an opening and closing platform; a slide rail is fixed to the top surface of the protruding edge corresponding to the inlet; the bottom surface of the opening and closing platform is slidably connected to the slide rail. Alternatively, the wax mold can be inserted into the water storage tank by sliding the opening and closing platform.

[0011] Preferably, a guide plate is fixed to the inner wall of the water storage tank corresponding to the inlet, and is arranged at an inclination along the moving direction of the wax model. The guide plate buffers and guides the wax model during its entry into the water storage tank, preventing damage from impact and collision when the wax model is inserted.

[0012] Preferably, the water storage tank has multiple observation plates hinged to its top surface between the two protruding edges. The cooling and transfer process of the wax model can be observed by opening the observation plates.

[0013] Preferably, the water storage tank has a cover plate hinged to the top surface corresponding to the feed inlet. When the wax injection machine is not in production, the feed inlet can be sealed with the cover plate.

[0014] Preferably, the lifting mechanism is a hydraulic push rod or a pneumatic push rod. Hydraulic or pneumatic methods are used to lift the wax model.

[0015] Preferably, the water storage tank is buried underground, and both the inlet and the outlet are exposed above the ground.

[0016] The present invention also provides a method for cooling and transferring wax molds, comprising the following steps: S1. After the wax injection machine finishes injecting wax, the wax mold falls from the mold outlet onto the receiving mechanism. S2. The receiving mechanism starts and puts the wax model into the water storage tank; S3. The rotating impeller starts to generate centrifugal force or axial thrust, which makes the water circulate and pushes the wax mold toward the discharge port. S5. When the wax model moves to the outlet position, the lifting mechanism will lift the wax model and expose the outlet. S6. Push the exposed wax model onto the mold repair table to complete the cooling and transfer of the wax model.

[0017] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a wax model cooling and transfer device and its usage method, which integrates wax model cooling and transfer, shortens the single batch process time, and significantly improves production efficiency; significantly improves the uniformity of wax model cooling, reduces the rate of shrinkage cavities, deformation, and scratches; fully automated operation reduces manual input and saves labor costs; cooling water is recycled, saving water resources; it is adaptable to wax models of different sizes and structures without the need to adjust the transfer path, and has strong versatility; the underground design of the water storage tank saves workshop floor space and is suitable for the needs of batch production on the assembly line; it realizes seamless connection of wax injection, cooling, and wax repair processes, reduces process waiting time, and lays the foundation for full automation of the wax model production process. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the transfer device structure provided by the present invention; Figure 2 A cross-sectional view of the transfer device provided by the present invention; Figure 3 The wax model transfer flowchart provided by this invention; Figure 4 This is a schematic diagram of the opening and closing platform structure provided by the present invention.

[0020] Among them, 1-water storage tank; 11-inlet; 12-outlet; 13-protruding edge; 14-observation plate; 15-cover plate; 2-receiving mechanism; 21-turning table; 22-slide rail; 23-opening and closing table; 3-wax injection machine; 4-wax mold; 5-rotating impeller; 6-lifting mechanism; 7-mold repair table. Detailed Implementation

[0021] 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.

[0022] like Figure 1 As shown in Figure 4, this embodiment of the invention discloses a wax model cooling and transfer device, including a water storage tank 1, a receiving mechanism 2, a rotating impeller 5, a lifting mechanism 6, and a mold repair table 7; one end of the top surface of the water storage tank 1 has an inlet 11, and the other end of the top surface has an outlet 12; the receiving mechanism 2 is installed on the top surface of the water storage tank 1 and on the side corresponding to the inlet 11, and the receiving mechanism 2 is located below the mold outlet of the wax injection machine 3 to receive the wax model 4; the receiving mechanism 2 can flip or open to allow the wax model 4 to pass through the inlet 11. 1. The wax mold 4 is placed into the water storage tank 1; the rotating impeller 5 is rotatably connected to the water storage tank 1 and corresponds to the bottom of the receiving mechanism 2 to drive the water in the water storage tank 1 to circulate and move the wax mold 4 towards the discharge port 12; the fixed end of the lifting mechanism 6 is fixed to the outer bottom wall of the water storage tank 1 corresponding to the discharge port 12, and the lifting end penetrates the bottom wall of the water storage tank 1 to lift the wax mold 4 from the discharge port 12; there are multiple mold repair tables 7 and they are fixed on both sides of the water storage tank 1 corresponding to the discharge port 12 to receive the wax mold 4 after lifting.

[0023] In this embodiment, in order to save space in the production workshop, the water storage tank 1 is buried underground, and the inlet 11 and outlet 12 are both exposed above the ground.

[0024] To further optimize the above technical solution and reduce the resistance of the wax model to movement in the water storage tank, the water storage tank is made of stainless steel plate, and the inner wall of the water storage tank is coated with wax for smoothing.

[0025] In some other embodiments, multiple temperature sensors are fixed to the inner wall of the reservoir in order to detect the water temperature inside the reservoir.

[0026] To further optimize the above technical solution, the top surfaces of the water storage tank 1 corresponding to the inlet 11 and outlet 12 are both extended upwards with protruding edges 13. The protruding edges 13 are integrally formed on the water storage tank 1, and the top surfaces of the two protruding edges 13 are respectively provided with the inlet 11 and the outlet 12. By setting the protruding edges 13, the cross-section of the water storage tank 1 is formed into a U-shape. The space between the two protruding edges 13 in the water storage tank 1 forms a water channel. The space on the side of the water storage tank 1 corresponding to the inlet 11 away from the outlet 12 is used to install the rotating impeller 5, and the top surface of the water storage tank 1 corresponding to the rotating impeller 5 is used to install the receiving mechanism 2.

[0027] The receiving mechanism in this embodiment has multiple options. The receiving mechanism 2 can be a tilting table 21, one end of which is hinged to the side wall of the protruding edge 13 of the inlet 11. For example... Figure 2 As shown, one end of the tilting table 21 is hinged to the protruding edge 13 of the corresponding feed port 11 and is driven by a motor. To save space, the motor can be installed on the inner bottom wall of the water storage tank 1. Tilting the tilting table 21 upward at a certain angle allows the wax model 4 to slide into the feed port 11 along the table surface of the tilting table 21.

[0028] In other specific embodiments, such as Figure 4 As shown, the receiving mechanism 2 can also be an opening and closing platform 23; a slide rail 22 is fixed to the top surface of the protruding edge 13 corresponding to the inlet 11; the bottom surface of the opening and closing platform 23 is slidably connected to the slide rail 22. The opening and closing platform 23 consists of two opening and closing plates, and there are two slide rails 22. The bottom surfaces of both opening and closing plates are slidably connected to the slide rails 22. The opening and closing plates can slide along the slide rails 22 parallel to the movement path of the wax model 4 in the water storage tank 1, or they can slide along the direction perpendicular to the movement path of the wax model 4. After the opening and closing plates receive the wax model 4, the opening and closing plates first slide to the top of the inlet 11, and then slide along the direction perpendicular to the movement path of the wax model 4 so that the two opening and closing plates move away from each other and are in an open state. After opening, the wax model can fall directly into the water storage tank 1 through the inlet 11. The sliding of the opening and closing plates in two different directions is controlled by two small motors respectively. To save space, the two small motors can be installed on the inner bottom wall of the water storage tank 1.

[0029] To further optimize the above technical solution, the opening / closing platform 23 or the flipping platform 21 is equipped with a pressure sensor. The pressure sensor is connected to the control system, and the control system is connected to the motor used to drive the opening / closing platform 23 or the flipping platform 21. The pressure sensor can detect whether the opening / closing platform 23 or the flipping platform 21 is receiving the wax mold. After the signal is fed back to the control system, the control system controls the operation of the motor to realize the sliding, opening / closing or flipping action of the opening / closing platform 23 or the flipping action of the flipping platform 21.

[0030] To further optimize the above technical solution and prevent damage to the wax model due to impact and collision during the insertion process, a guide plate is fixed to the inner wall of the water storage tank 1 corresponding to the inlet 11, which is inclined along the moving direction of the wax model 4. The guide plate provides a buffering effect for the insertion of the wax model 4. The upper end of the guide plate is fixed to the protrusion 13 at the inlet 11 near the inner wall of the receiving mechanism 2, and the lower end is inclined in the moving direction of the wax model 4 at an angle of 10° to 20°, preferably 15°. In order to ensure that the water can circulate, there is a flow gap between the lower end of the guide plate and the inner bottom wall of the water storage tank 1.

[0031] To further optimize the above technical solution and facilitate observation of the cooling and transfer status of the wax model in the water storage tank, multiple observation plates 14 are hinged to the top surface of the water storage tank 1 between the two protruding edges 13.

[0032] In some other specific embodiments, the inlet is closed when the wax injection machine is not working, and a cover plate 15 is hinged to the top surface of the water storage tank corresponding to the inlet 11.

[0033] To further optimize the above technical solution, the lifting mechanism 6 is a hydraulic push rod or a pneumatic push rod.

[0034] This embodiment also discloses a wax model cooling and transfer method, which uses a wax model cooling and transfer device from the above-mentioned technical solutions for wax model transfer, such as... Figure 3 As shown, it includes the following steps: S1. After the wax injection machine 3 finishes injecting wax, the wax mold 4 falls from the mold outlet onto the receiving mechanism 2. At this time, the wax mold 4 corresponds to the attached... Figure 3 Position A in the middle; S2, the receiving mechanism 2 starts to put the wax model 4 into the water storage tank 1; the receiving mechanism 2 starts to move the wax model 4 from position A to position B by flipping or opening and closing; S3. The rotating impeller 5 starts to generate centrifugal force or axial thrust to make the water circulate and push the wax mold 4 towards the discharge port 12. The rotating impeller 5 can generate centrifugal force or axial thrust by rotating, which can make the water in the water storage tank 1 circulate and avoid static accumulation of water. It can also make the wax mold 4 move from position C to position D with the water flow. S5. When the wax model 4 moves to the discharge port 12, the lifting mechanism 6 lifts the wax model and exposes it to the discharge port 12, completing the transfer of the wax model 4 from position D to position E. S6. Push the wax model 4, which is exposed at the discharge port 12, onto the mold repair table 7 to complete the cooling and transfer of the wax model 4. The lifting mechanism 6 extends vertically upward from the position of the water tank 1 corresponding to the discharge port 12, penetrating the water surface and lifting the wax model 4. Since the water tank 1 has a U-shaped cross-section and smooth walls, the wax model can be lifted smoothly without jamming. The lifting mechanism 6 continues to lift the wax model 4 to ground level and pushes it onto the adjacent mold repair table 7 to complete the transfer. The lifting mechanism 6 then retracts, waiting for the next wax model 4.

[0035] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0036] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wax mold cooling and transfer device, characterized in that, include: A water storage tank (1) has an inlet (11) at one end of its top surface and an outlet (12) at the other end of its top surface. The receiving mechanism (2) is installed on the top surface of the water storage tank (1) and on the side corresponding to the inlet (11). The receiving mechanism (2) is located below the mold outlet of the wax injection machine (3) to receive the wax mold (4). The receiving mechanism (2) can flip or open to put the wax mold (4) into the water storage tank (1) through the inlet (11). Rotating impeller (5), the rotating impeller (5) is rotatably connected in the water storage tank (1) and corresponds to the lower part of the receiving mechanism (2) to push the water in the water storage tank (1) to circulate and move the wax mold (4) toward the discharge port (12); The lifting mechanism (6) has its fixed end fixed to the outer bottom wall of the water storage tank (1) corresponding to the discharge port (12), and its lifting end penetrates the bottom wall of the water storage tank (1) to lift the wax mold (4) from the discharge port (12). The number of the mold repair tables (7) is multiple and they are fixed on both sides of the water storage tank (1) corresponding to the discharge port (12) to receive the wax mold (4) after it is lifted.

2. The wax mold cooling and transfer device according to claim 1, characterized in that, The top surface of the water storage tank (1) corresponding to the inlet (11) and the outlet (12) both have upward-extending ridges (13).

3. The wax mold cooling and transfer device according to claim 2, characterized in that, The receiving mechanism (2) is a turning table (21), one end of which is hinged to the side wall of the protrusion (13) corresponding to the feed inlet (11).

4. The wax mold cooling and transfer device according to claim 2, characterized in that, The receiving mechanism (2) is an opening and closing platform (23); a slide rail (22) is fixed on the top surface of the protrusion (13) corresponding to the feed port (11); the bottom surface of the opening and closing platform (23) is slidably connected to the slide rail (22).

5. A wax mold cooling and transfer device according to claim 3 or 4, characterized in that, The water storage tank (1) has a guide plate fixed on the inner wall corresponding to the feed inlet (11), which is inclined along the moving direction of the wax mold (4).

6. A wax mold cooling and transfer device according to claim 2, characterized in that, The water storage tank (1) has multiple observation plates (14) hinged to the top surface between the two protruding edges (13).

7. The wax mold cooling and transfer device according to claim 1, characterized in that, The water storage tank (1) is hinged with a cover plate (15) on the top surface corresponding to the feed inlet (11).

8. The wax mold cooling and transfer device according to claim 1, characterized in that, The lifting mechanism (6) is a hydraulic push rod or a pneumatic push rod.

9. A wax mold cooling and transfer device according to claim 1, characterized in that, The water storage tank (1) is buried underground, and the inlet (11) and outlet (12) are both exposed above the ground.

10. A method for cooling and transferring wax molds, characterized in that, The wax model transfer using the wax model cooling and transfer device according to any one of claims 1 to 9 includes the following steps: S1. After the wax injection machine (3) finishes injecting wax, the wax mold (4) falls from the mold outlet onto the receiving mechanism (2); S2, The receiving mechanism (2) starts to put the wax mold (4) into the water storage tank (1); S3. The rotating impeller (5) starts to generate centrifugal force or axial thrust to make the water circulate and push the wax mold (4) towards the discharge port (12); S5. When the wax mold (4) moves to the position of the discharge port (12), the lifting mechanism (6) lifts the wax mold and exposes the discharge port (12). S6. Push the wax model (4) with the exposed discharge port (12) onto the mold repair table (7) to complete the cooling and transfer of the wax model (4).

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