Segmented cooling mold for ring printing

Abstract

The utility model provides a kind of annular piece printing segmented cooling mould, mainly relates to additive manufacturing mould technical field.A kind of annular piece printing segmented cooling mould, including annular piece printing segmented cooling mould, including printing bottom plate, outer ring cooling mould, inner ring cooling mould, inner ring wedge, lower cooling pipe, upper cooling pipe, cooling pipe joint, the outer ring cooling mould, inner ring cooling mould is respectively fixed on printing bottom plate, the outer ring cooling mould equidistance is arranged in the outer side of inner ring cooling mould, the outer ring cooling mould, inner ring cooling mould is circular, the outer ring cooling mould is made of several identical arc segments.The utility model has the beneficial effect that the utility model can effectively control the temperature condition of each time period each part mould in printing process, it is convenient for printing forming and control cooling state, to form the solidification interface of stable growth, improve printing quality and success rate, improve production efficiency.

Description

Technical Field

[0001] This utility model mainly relates to the field of additive manufacturing mold technology, specifically a segmented cooling mold for printing ring-shaped parts. Background Technology

[0002] Liquid metal 3D printing technology is a novel 3D printing method that uses melt impact methods to prepare aluminum alloy materials of any composition. The materials obtained by this method have the characteristics of fine structure and uniform composition.

[0003] Liquid metal printing typically does not require molds. Controlling the jet speed and flow rate to match the corresponding cooling rate, relying solely on bottom cooling, or using insulation materials to confine the molten aluminum, all result in a decrease in cooling intensity as the printing height increases, thus limiting the printing height. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a segmented cooling mold for printing ring-shaped parts. This mold is required for liquid metal ring-shaped part printing equipment, which facilitates printing and controlling the cooling state, thereby forming a stable solidification interface for growth.

[0005] To achieve the above objectives, this utility model employs the following technical solution: A segmented cooling mold for printing annular components includes a printing base plate, an outer ring cooling mold, an inner ring cooling mold, an inner ring wedge block, a lower cooling pipe, an upper cooling pipe, and cooling pipe connectors. The outer ring cooling mold and the inner ring cooling mold are respectively fixed on the printing base plate. The outer ring cooling mold is evenly spaced outside the inner ring cooling mold. The outer ring cooling mold and the inner ring cooling mold are circular. The outer ring cooling mold is composed of several identical arc segments, and the inner ring cooling mold is composed of several identical arc segments and an inner ring wedge block. Each arc segment is provided with a cooling pipe, which includes a lower cooling pipe and an upper cooling pipe. Each cooling pipe has several cooling pipe connectors at both ends.

[0006] Each of the cooling pipes is provided with at least two sets of cooling pipe joints at both ends, including a coolant inlet joint and a coolant outlet joint.

[0007] The inner ring wedge block is positioned between the two arc-shaped segments of the inner ring cooling mold.

[0008] Compared with the existing technology, the beneficial effects of this utility model are: This segmented cooling mold for ring-shaped parts printing allows for individual control of the temperature, flow rate, and on / off state of the cooling medium in each mold section, providing comprehensive cooling regulation capabilities for the printed parts. In the early stages of printing, increasing the mold temperature helps reduce the formation of cold shuts in the printed parts and also facilitates better adhesion between the printed parts and the mold. During printing, controlling the temperature of the lower ring to reduce cooling enhances the cooling intensity at the bottom, allowing the solidification interface to grow smoothly upwards. This also facilitates the removal of slag and gas from the printed parts and increases the temperature gradient, all of which have a positive effect on the forming of the printed parts, improving the quality and success rate of the printed parts and increasing production efficiency. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of the ring-shaped segmented cooling mold for printing this utility model; Figure 2 This is a top view of the segmented cooling mold for printing ring-shaped parts according to this utility model.

[0010] The labels shown in the attached diagram are: 1. Printing base plate; 2. Outer ring cooling mold; 3. Inner ring cooling mold; 4. Inner ring wedge block; 5. Lower cooling pipe; 6. Upper cooling pipe; 7. Cooling pipe connector. Detailed Implementation

[0011] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.

[0012] Combined with appendix Figures 1-2 A segmented cooling mold for printing annular components includes a printing base plate 1, an outer ring cooling mold 2, an inner ring cooling mold 3, an inner ring wedge block 4, a lower cooling pipe 5, an upper cooling pipe 6, and cooling pipe connectors 7. The outer ring cooling mold 2 and the inner ring cooling mold 3 are respectively fixed on the printing base plate 1. The outer ring cooling mold 2 is evenly spaced outside the inner ring cooling mold 3. The outer ring cooling mold 2 and the inner ring cooling mold 3 are circular. The outer ring cooling mold 2 is composed of several identical arc segments, and the inner ring cooling mold 3 is composed of several identical arc segments and an inner ring wedge block 4. Each arc segment is provided with a cooling pipe, which includes a lower cooling pipe 5 and an upper cooling pipe 6. Each cooling pipe has several cooling pipe connectors 7 at both ends.

[0013] Each of the cooling pipes is provided with at least two sets of cooling pipe joints 7 at both ends, including a coolant inlet joint and a coolant outlet joint.

[0014] The inner ring wedge block 4 is disposed between the two arc-shaped segments of the inner ring cooling mold 3.

[0015] This ring-shaped part printing segmented cooling mold adopts an inner and outer double-ring, segmented combination design. This design effectively avoids thermal deformation during the printing process, facilitates maintenance and replacement, and allows cooling pipes to be arranged on each arc segment to increase cooling intensity. Insulation cotton must be installed between the segments (arc segments) to prevent mutual heat transfer. A wedge block is arranged in the inner ring to prevent the mold from being unable to be removed due to shrinkage of the printed part after molding. Each segment of the mold has two layers (not limited to two layers) of cooling pipes, and the number of cooling pipe layers is reasonably arranged according to the required height of the printed part. Each layer of cooling pipes can be independently controlled to regulate the temperature, flow rate, and on / off status of the cooling medium. Each layer of cooling pipes is equipped with two pairs of coolant inlet and outlet joints, which can increase the flow rate of the cooling medium and facilitate venting during boiling heat transfer, thereby increasing the cooling intensity.

[0016] The process of using this mold is as follows: Before printing begins, the liquid metal printing nozzle (not shown) is inserted into the cooling mold opening, maintaining a certain distance from the bottom platform. Printing begins, and the printing base plate 1 and the mold rotate together. The jet slowly forms on the mold and platform. In the early stage of printing, the temperature of the cooling medium is increased to keep the mold at a certain high temperature. The printed part is cooled and solidified by the cooling effect of the printing base plate 1 alone. As the printing height increases, the temperature of the cooling medium in the lower cooling pipe 5 is reduced to enhance the cooling intensity of the lower part of the printed part, so that the solidification interface can maintain a straight and stable upward growth. As the height of the printed part continues to increase, the medium in the upper cooling pipe 6 is operated at the appropriate time until the printing is successfully completed. After printing, the temperature of the cooling medium can also be adjusted to prevent the printed part from experiencing drastic temperature changes and generating excessive stress.

[0017] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A segmented cooling mold for printing annular parts, comprising a printing base plate (1), an outer ring cooling mold (2), an inner ring cooling mold (3), an inner ring wedge block (4), a lower cooling pipe (5), an upper cooling pipe (6), and a cooling pipe connector (7), characterized in that: The outer ring cooling mold (2) and the inner ring cooling mold (3) are respectively fixed on the printing base plate (1). The outer ring cooling mold (2) is evenly spaced outside the inner ring cooling mold (3). The outer ring cooling mold (2) and the inner ring cooling mold (3) are circular. The outer ring cooling mold (2) is composed of several identical arc segments. The inner ring cooling mold (3) is composed of several identical arc segments and an inner ring wedge block (4). Each arc segment is provided with a cooling pipe. The cooling pipe includes a lower cooling pipe (5) and an upper cooling pipe (6). Each cooling pipe has several cooling pipe joints (7) at both ends.

2. The segmented cooling mold for printing annular parts according to claim 1, characterized in that: Each of the cooling pipes is provided with at least two sets of cooling pipe joints (7) at both ends, including a coolant inlet joint and a coolant outlet joint.

3. The segmented cooling mold for printing annular parts according to claim 1, characterized in that: The inner ring wedge block (4) is positioned between the two arc segments of the inner ring cooling mold (3).

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