A transfer tool for investment casting

By designing a C-shaped transfer support base and support base, combined with a cooling fan and forklift lifting, the problems of inflexible movement and inconvenient heat dissipation of investment casting transfer fixtures are solved, achieving efficient transfer of complex structural parts and stability of casting quality.

CN224297197UActive Publication Date: 2026-05-29QINGTIAN BAOLI VALVE FOUNDRY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGTIAN BAOLI VALVE FOUNDRY CO LTD
Filing Date
2025-06-24
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing investment casting transfer fixtures are inflexible in movement, have poor heat dissipation, and cannot be flexibly connected to external equipment for air cooling. This makes it difficult to accurately control the transfer time of complex structural parts, which affects the quality of the castings.

Method used

It adopts a C-shaped transfer support base connected to the support base. The support base is equipped with a cooling fan that can blow air from bottom to top for heat dissipation. It can be lifted and transferred by forklift. Combined with support rollers and threaded top rods, it can move flexibly. The support base is equipped with a battery for power supply to support the operation of the fan.

Benefits of technology

It enables flexible movement and efficient heat dissipation of investment casting fixtures, ensuring the stability of thermophysical parameters of castings during transfer, and improving the accuracy of transfer and casting quality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224297197U_ABST
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Abstract

This utility model discloses a transfer fixture for investment casting, including a C-shaped transfer support base. A support column is fixedly connected to the upper surface of the C-shaped transfer support base, and a casting transfer placement seat is fixedly connected to the upper surface of the support column. Ventilation holes are evenly and densely distributed on the surface of the casting transfer placement seat. A support seat is slidably engaged with the inner surface of the C-shaped transfer support base. A cooling fan is provided on the front inner end surface of the support seat. A threaded push rod is threadedly connected to the inner surface of the C-shaped transfer support base. The C-shaped transfer support base and the support seat are connected together, allowing for splicing and transfer. The support seat can be moved and transferred by itself and can be removed. The C-shaped transfer support base can be lifted and transferred by a forklift. It is flexible and convenient to move and transfer. In addition, the cooling fan inside the support seat can blow air from bottom to top to dissipate heat, which is convenient for the casting to dissipate heat on the surface of the casting transfer placement seat.
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Description

Technical Field

[0001] This utility model relates to the field of transfer tooling for investment casting, and more specifically, to a transfer tooling for investment casting. Background Technology

[0002] Vacuum casting is generally used for melting and casting complex structural parts. Before casting, the product usually needs to be heated in a baking furnace for a period of time. After reaching a certain temperature point, it is then transferred to a vacuum melting furnace for casting. The casting diameter is over 1 meter, the wall thickness is thin, and the gating system is complex. The time of mold shell transfer must be precisely controlled to avoid the mold shell being chilled due to excessive transfer time, which would cause the key thermal properties parameters to deviate from the theoretical requirements.

[0003] In the prior art, such as the authorized announcement number CN222643221U, this utility model relates to the field of transfer tooling, specifically disclosing a transfer tooling for investment casting of complex structural parts. The transfer tooling includes a base plate with several through holes. A support member is provided on the bottom surface of the base plate, and the base plate and the support member are integrally cast from a high-temperature alloy. An exhaust assembly is provided on the upper surface of the base plate. This utility model reduces the weight of the transfer tooling by providing through holes in the base plate, and improves its service life by using high-temperature alloy casting. The exhaust assembly, together with the through holes in the base plate, increases the air convection speed at the bottom of the casting, facilitates heat dissipation of the casting, promotes sequential solidification of the casting, and reduces defects such as shrinkage porosity.

[0004] It features a through-hole for heat dissipation, with a ring of circular pipes and vent pipes distributed on its side for ventilation and heat dissipation. However, external equipment cannot be connected during heat dissipation, making it inconvenient for air circulation and heat dissipation. Furthermore, the transfer device can only be transferred by forklift, making it inflexible in movement and inconvenient to use. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a transfer fixture for investment casting. It adopts a C-shaped transfer support base connected to a support base, which can be spliced ​​and transferred, can be moved and transferred by itself, and the support base can be removed. The C-shaped transfer support base can be lifted and transferred by a forklift. It is flexible and convenient to move and transfer. In addition, a cooling fan is installed in the support base, which can blow air from bottom to top to dissipate heat, which facilitates heat dissipation of the casting on the surface of the casting transfer and placement base, making heat dissipation convenient.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A transfer fixture for investment casting includes a C-shaped transfer support base. A support column is fixedly connected to the upper surface of the C-shaped transfer support base, and a casting transfer placement seat is fixedly connected to the upper surface of the support column. Ventilation holes are evenly distributed on the surface of the casting transfer placement seat. A support seat is slidably engaged with the inner surface of the C-shaped transfer support base. A cooling fan is provided on the front inner end surface of the support seat. A threaded push rod is threadedly connected to the inner surface of the C-shaped transfer support base, and the threaded push rod is pressed and fixed to the side of the support seat. A first handle is fixedly connected to the outer surface of the threaded push rod. The C-shaped transfer support base and the support seat are connected together, allowing for splicing and transfer. The fixture can be moved and transferred independently, and the support seat can be removed. The C-shaped transfer support base can be lifted and transferred using a forklift. It is flexible and convenient to move. Furthermore, the cooling fan inside the support seat blows air upwards to dissipate heat from the casting on the surface of the casting transfer placement seat, facilitating heat dissipation.

[0008] Furthermore, the lower surface of the C-shaped transfer support is provided with a first support roller, which is distributed at the four corners of the lower surface of the C-shaped transfer support. The lower surface of the support is fixedly connected with a second support roller, which is evenly distributed in six groups on the lower surface of the support.

[0009] Furthermore, a battery is fixedly installed on the upper surface of the outer end of the support base, and a folded bracket is provided on the upper surface of the support base.

[0010] Furthermore, a second handle is provided on the outer end surface of the angle bracket, and the second handle is distributed on both outer surfaces of the angle bracket.

[0011] Furthermore, a support strip is provided on the inner surface of the outer end of the support base, and a cooling fan is fixed to the inner end of the support strip.

[0012] Furthermore, the ventilation holes adopt a circular hole structure and are densely distributed on the surface of the casting transfer and placement seat.

[0013] Furthermore, the C-shaped transfer support has threaded holes on its side, which are distributed on the left and right sides of the C-shaped transfer support. The outer surface of the threaded push rod is threadedly connected to the inner surface of the threaded hole of the C-shaped transfer support.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) The C-shaped transfer support is connected to the support base, which can be spliced ​​and transferred. It can be moved and transferred by itself. The support base can be removed. The C-shaped transfer support can be lifted and transferred by forklift. It is flexible and convenient to move and transfer. In addition, the support base is equipped with a cooling fan, which can blow air from bottom to top to dissipate heat, which facilitates the heat dissipation of the casting on the surface of the casting transfer placement seat. Heat dissipation is convenient. Attached Figure Description

[0016] Figure 1 This is a first schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a second schematic diagram of the overall structure of this utility model;

[0018] Figure 3 This is a third schematic diagram of the overall structure of this utility model;

[0019] Figure 4 This is the fourth schematic diagram of the overall structure of this utility model;

[0020] Figure 5 This is a partial structural diagram showing the distribution relationship between the C-shaped transfer support and the casting transfer placement seat of this utility model.

[0021] Explanation of the labels in the diagram:

[0022] 1 C-shaped transfer support, 2 support column, 3 casting transfer placement seat, 4 ventilation hole, 5 support seat, 6 cooling fan, 7 threaded top rod, 8 first handle, 100 first support roller, 500 second support roller, 9 battery, 10 angled seat, 11 second handle, 60 support bar. Detailed Implementation

[0023] 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. Example 1

[0024] Please see Figure 1-5A transfer fixture for investment casting includes a C-shaped transfer support 1, a support column 2 fixedly connected to the upper surface of the C-shaped transfer support 1, a casting transfer placement seat 3 fixedly connected to the upper surface of the support column 2, ventilation holes 4 evenly and densely distributed on the surface of the casting transfer placement seat 3, a support seat 5 slidably engaged on the inner surface of the C-shaped transfer support 1, a cooling fan 6 provided on the front inner end surface of the support seat 5, a threaded push rod 7 threadedly connected to the inner surface of the C-shaped transfer support 1, the threaded push rod 7 being pressed and fixed to the side of the support seat 5, and a first handle 8 fixedly connected to the outer surface of the threaded push rod 7; the C-shaped transfer support 1 is connected to the support seat, allowing for splicing and transfer, self-propelled movement and transfer, and removal of the support seat; the C-shaped transfer support 1 can be lifted and transferred by forklift, making it flexible and convenient to move; and the cooling fan inside the support seat can blow air from bottom to top to dissipate heat, facilitating heat dissipation of the casting on the surface of the casting transfer placement seat.

[0025] The lower surface of the C-shaped transfer support 1 is provided with a first support roller 100, which is distributed at the four corners of the lower surface of the C-shaped transfer support 1. The lower surface of the support 5 is fixedly connected with a second support roller 500, which is evenly distributed in six groups on the lower surface of the support 5. The first support roller 100 can support the C-shaped transfer support 1 to move, and the second support roller 500 can support the support 5 to move, so the movement support is stable.

[0026] A battery 9 (a lead-acid battery, which is a secondary battery that uses lead and its oxides as electrodes and sulfuric acid solution as electrolyte, and converts electrical energy into chemical energy through a reversible redox reaction. Its core consists of a positive electrode plate (lead dioxide), a negative electrode plate (lead), an electrolyte (sulfuric acid), a separator, and a container, and is widely used in automotive starting, backup power, and other fields) is provided on the upper surface of the support base 5. The battery 9 is connected to the cooling fan 6 and the control switch fan (the circuit control is existing technology) through a series circuit.

[0027] A second handle 11 is provided on the outer end surface of the angle bracket 10. The second handle 11 is distributed on both outer surfaces of the angle bracket 10. The second handle 11 can push the whole body to move, making the transfer operation convenient.

[0028] A support bar 60 is provided on the inner surface of the outer end of the support base 5, and a cooling fan 6 is fixed at the inner end of the support bar 60; the support bar 60 can support the cooling fan 6 (the cooling fan 6 includes a motor and fan blades, and the fan blades are fixed at the drive shaft end of the motor, which is a prior art device).

[0029] The ventilation holes 4 adopt a round hole structure and are densely distributed on the surface of the casting transfer and placement seat 3. The ventilation holes 4 are densely distributed and can facilitate airflow. After the casting is placed on the surface of the casting transfer and placement seat 3, it is easy to facilitate airflow and heat dissipation.

[0030] The C-shaped transfer support 1 has threaded holes on its side, which are distributed on the left and right sides of the C-shaped transfer support 1. The outer surface of the threaded push rod 7 is connected to the inner surface of the threaded hole of the C-shaped transfer support 1 by thread; this facilitates the installation and fixation of the support 5 by the threaded push rod 7, making it convenient to use.

[0031] In use, a support column 2 is fixedly connected to the upper surface of the C-shaped transfer support 1, and a casting transfer placement seat 3 is fixedly connected to the upper surface of the support column 2. The support column 2 provides overhead support for the casting transfer placement seat 3, which facilitates airflow and heat dissipation. Ventilation holes 4 are opened on the surface of the casting transfer placement seat 3. The ventilation holes 4 are evenly and densely distributed on the surface of the casting transfer placement seat 3. A support seat 5 is slidably engaged on the inner surface of the C-shaped transfer support 1. A cooling fan 6 is provided on the inner front end surface of the support seat 5. In use, the casting is placed on the surface of the casting transfer placement seat 3, and the cooling fan 6 blows air from bottom to top, which can blow air out from the ventilation holes 4 to facilitate heat dissipation of the casting.

[0032] During transport, a handle 11 is provided on the outer end surface of the angle bracket 10. The handles 11 are distributed on both sides of the outer surface of the angle bracket 10. The handles 11 can push the whole body to move, making manual transport operation convenient.

[0033] When transported by forklift, the threaded push rod 7 can be loosened by twisting the handle 8, and the support seat 5 can be slid out and separated from the C-shaped transport support seat 1. The separated C-shaped transport support seat 1 can be lifted and transported by inserting it from the bottom with a forklift. It is convenient to use and flexible to transport.

[0034] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A transfer fixture for investment casting, comprising a C-shaped transfer support (1), characterized in that: The upper surface of the C-shaped transfer support (1) is fixedly connected to a support column (2), and the upper surface of the support column (2) is fixedly connected to a casting transfer placement seat (3). The surface of the casting transfer placement seat (3) is provided with ventilation holes (4), and the ventilation holes (4) are evenly and densely distributed on the surface of the casting transfer placement seat (3). The inner surface of the C-shaped transfer support (1) is slidably engaged with a support seat (5). The front inner end surface of the support seat (5) is provided with a cooling fan (6). The inner surface of the C-shaped transfer support (1) is connected to a threaded push rod (7) by a thread. The threaded push rod (7) is pressed and fixed to the side of the support seat (5). The outer surface of the threaded push rod (7) is fixedly connected with a first handle (8).

2. The transfer fixture for investment casting according to claim 1, characterized in that: The lower surface of the C-shaped transfer support (1) is provided with a first support roller (100), and the first support roller (100) is distributed at the four corners of the lower surface of the C-shaped transfer support (1). The lower surface of the support (5) is fixedly connected with a second support roller (500), and six groups of the second support roller (500) are evenly distributed on the lower surface of the support (5).

3. The transfer fixture for investment casting according to claim 1, characterized in that: A battery (9) is fixedly installed on the upper surface of the outer end of the support base (5), and a folded seat (10) is provided on the upper surface of the support base (5).

4. The transfer fixture for investment casting according to claim 3, characterized in that: The outer end surface of the angle bracket (10) is provided with a second handle (11), which is distributed on both sides of the outer surface of the angle bracket (10).

5. A transfer fixture for investment casting according to claim 1, characterized in that: The support base (5) has a support bar (60) on the inner surface of its outer end, and a cooling fan (6) is fixed to the inner end of the support bar (60).

6. A transfer fixture for investment casting according to claim 1, characterized in that: The ventilation holes (4) are circular holes and are densely distributed on the surface of the casting transfer and placement seat (3).

7. A transfer fixture for investment casting according to claim 1, characterized in that: The C-shaped transfer support (1) has threaded holes on its side. The threaded holes are distributed on the left and right sides of the C-shaped transfer support (1). The outer surface of the threaded push rod (7) is connected to the inner surface of the threaded hole of the C-shaped transfer support (1) by thread.

Citation Information

Patent Citations

  • Transfer tool for investment casting of complex structural parts

    CN222643221U