A mold opening and closing device for ring part printing

Abstract

The utility model provides a kind of opening and closing mould for ring printing, it is mainly related to additive manufacturing mould technical field.Opening and closing mould for ring printing, including rotary platform, is fixed with several groups of guide rail on rotary platform, and is close to rotary center one side and is far from rotary center one side respectively, it is slidably installed with inner ring mould on the guide rail of rotary platform rotary center one side, it is slidably installed with outer ring mould on the guide rail of rotary platform rotary center one side, cooling base plate is fixed on rotary platform between the outer ring mould and inner ring mould, cooling pipeline is respectively equipped with in inner ring mould inside, outer ring mould outside.The utility model has the beneficial effect that: this mould can be opened and closed automatically, conveniently take ingot of printing piece, effectively improve production efficiency, avoid the risk of cooling medium leakage simultaneously, the cooling pipeline of mould side wall can enhance and adjust the cooling capacity of platform, control solidification interface to keep stable growth, improve product quality.

Description

Technical Field

[0001] This utility model mainly relates to the field of additive manufacturing mold technology, specifically an opening and closing mold for printing ring-shaped parts. Background Technology

[0002] Liquid metal 3D printing technology is a brand-new 3D printing method that can prepare aluminum alloy materials of any composition by means of melt impact method. The materials obtained by this method have the characteristics of fine structure and uniform composition. Liquid metal printing of ring-shaped parts often uses ring-shaped part printing molds. Existing ring-shaped part printing molds do not have automatic opening and closing functions. After printing, they need to be manually disassembled and installed for the next printing. Among them, disassembling the pipes is the most complicated, which is time-consuming and labor-intensive, reducing production efficiency. At the same time, the disassembly of the pipes will cause leakage of cooling medium, causing unnecessary trouble for printing. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an opening and closing mold for printing ring-shaped parts. It is a cooling mold for printing liquid metal using the melt impact method, which is used in conjunction with the melt impact method to produce ingot blanks. The mold automatically opens and closes for easy ingot removal.

[0004] To achieve the above objectives, this utility model employs the following technical solution: A ring-shaped part printing mold includes a rotary platform. Several sets of guide rails are fixedly installed on the rotary platform on both sides near and away from the rotation center. An inner ring mold is slidably mounted on the guide rail near the rotation center, and an outer ring mold is slidably mounted on the guide rail away from the rotation center. A cooling base plate is fixedly installed on the rotary platform between the outer and inner ring molds. Cooling pipes are provided on the inner side of the inner ring mold and the outer side of the outer ring mold. Several inner mold drive motors are fixedly installed on the inner side of the rotary platform near the rotation center, and several outer mold drive motors are fixedly installed on the outer side of the rotary platform away from the rotation center. Mold fixing blocks are fixedly connected to the output shafts of the inner and outer mold drive motors. The mold fixing blocks connected to the inner mold drive motors are fixedly connected to the inner ring mold, and the mold fixing blocks connected to the outer mold drive motors are fixedly connected to the outer ring mold.

[0005] Both the outer and inner ring molds are circular in shape. Each outer and inner ring mold is composed of several arc segments. Each arc segment has an independent cooling pipe fixedly installed on one side, and each cooling pipe has a cooling pipe interface at both ends.

[0006] Compared with the existing technology, the beneficial effects of this utility model are: A ring-shaped part printing mold can automatically open and close, facilitating the removal of printed parts and avoiding the manual disassembly of existing molds, which affects production efficiency. At the same time, it will not cause leakage of cooling medium and cause unnecessary trouble. The cooling pipes on the side wall of the mold can enhance the cooling capacity of the platform. When the solidification interface of the printed part inside the mold grows to a certain height, the side cooling is activated to keep the solidification interface growing stably. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partially cutaway structural diagram of the present invention; Figure 3 This is a top view of the overall open state of the opening and closing mold of this utility model.

[0008] The following are the labels in the attached diagram: 1. Rotary platform; 2. Outer mold drive motor; 3. Guide rail; 4. Mold fixing block; 5. Infusion pipe; 6. Nozzle; 7. Outer ring mold; 8. Inner ring mold; 9. Cooling pipe; 10. Cooling pipe interface; 11. Inner mold drive motor; 12. Cooling base plate. Detailed Implementation

[0009] 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.

[0010] Combined with appendix Figures 1-3 A ring-shaped part printing mold includes a rotary platform 1. Several sets of guide rails 3 are fixedly installed on the rotary platform 1 on both sides near and away from the rotation center. An inner ring mold 8 is slidably mounted on the guide rail 3 near the rotation center, and an outer ring mold 7 is slidably mounted on the guide rail 3 away from the rotation center. A cooling base plate 12 is fixedly installed on the rotary platform 1 between the outer ring mold 7 and the inner ring mold 8. Cooling pipes 9 are provided on the inner side of the inner ring mold 8 and the outer side of the outer ring mold 7. Several inner mold drive motors 11 are fixedly installed on the inner side of the rotary platform 1 near the rotation center, and several outer mold drive motors 2 are fixedly installed on the outer side of the rotary platform 1 away from the rotation center. Mold fixing blocks 4 are fixedly connected to the output shafts of the inner mold drive motors 11 and the outer mold drive motors 2. The mold fixing blocks 4 connected to the inner mold drive motors 11 are fixedly connected to the inner ring mold 8, and the mold fixing blocks 4 connected to the outer mold drive motors 2 are fixedly connected to the outer ring mold 7.

[0011] The outer ring mold 7 and the inner ring mold 8 are both circular in shape. The outer ring mold 7 and the inner ring mold 8 are each composed of several arc segments. Each arc segment has an independent cooling pipe 9 fixedly installed on one side. Each cooling pipe 9 has a cooling pipe interface 10 at both ends.

[0012] The cooling pipe interfaces 10 at both ends of the cooling pipe 9 are used to add and discharge coolant into the cooling pipe 9, respectively. The number of the outer mold drive motors 2 corresponds to the arc segment of the outer ring mold 7, and the number of the inner mold drive motors 11 corresponds to the number of arc segments of the inner ring mold 8.

[0013] The ring-shaped part printing mold is rationally divided into segments (several arc-shaped segments) according to the size of the printed part. Each segment has an independent cooling pipe control system, which can adjust the temperature of the cooling medium to meet design requirements. Adjusting the high and low temperature cooling medium can improve the overall utilization rate of the printed part and reduce defects. The number of cooling pipes 9 is determined according to the height of the printed part. The outer ring cooling mold is multi-segmented, and each segment has an independent guide and drive system to realize the opening and closing movement. The inner ring mold 8 has a different joint, with a wedge-shaped interface to avoid interference during the opening and closing process. The spaced molds are in a group, and the two groups of molds move alternately with different movement distances. Insulation cotton is fixed between each segment of the mold for sealing.

[0014] Specific implementation: Before the start, the mold is closed by the motor and fits against the cooling base plate 12. The rotary platform 1 starts to rotate. When printing starts, the purified aluminum liquid is transported to the liquid inlet pipe 5 of the printing equipment through the pipeline. The aluminum liquid is generated into a stable jet by the nozzle 6. The nozzle 6 initially maintains a certain distance from the cooling base plate 12. During the printing process, the rotary platform 1 descends as the printed part rises, so that the nozzle 6 is always close to the aluminum liquid for printing. When the printed part reaches a certain height, the cooling pipes of the inner and outer molds are opened, so that the solidification interface can grow stably.

[0015] This solution also includes a controller, the location of which is set by the staff according to the actual situation during operation. The controller is used to control the electrical components used in this solution, including but not limited to sensors, motors, telescopic rods, heating wires, displays, computer input devices, switches, communication devices, lights, speakers, and microphones; when a display screen is available, a display card is also included. For the operating principle of the controller, please refer to "Principles of Automatic Control", "Principles and Application Simulation Cases of Microcontrollers" and "Principles and Applications of Sensors" published by Tsinghua University Press. Other books in this field can also be consulted. Other automation control and electrical components not mentioned are knowledge well known to those skilled in the art and will not be described in detail here.

[0016] 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 ring-shaped printing mold, comprising a rotating platform (1), characterized in that: Several sets of guide rails (3) are fixedly provided on the rotary platform (1) on the side near the rotation center and the side away from the rotation center. An inner ring mold (8) is slidably installed on the guide rail (3) on the side near the rotation center of the rotary platform (1), and an outer ring mold (7) is slidably installed on the guide rail (3) on the side away from the rotation center of the rotary platform (1). A cooling base plate (12) is fixed on the rotary platform (1) between the outer ring mold (7) and the inner ring mold (8). Cooling pipes (9) are provided on the inner side of the inner ring mold (8) and the outer side of the outer ring mold (7). A number of inner mold drive motors (11) are fixedly installed on the inner side of the rotary platform (1) near the center of rotation, and a number of outer mold drive motors (2) are fixedly installed on the outer side of the rotary platform (1) away from the center of rotation. Mold fixing blocks (4) are fixedly connected to the output shaft ends of the inner mold drive motors (11) and the outer mold drive motors (2). The mold fixing block (4) connected to the inner mold drive motor (11) is fixedly connected to the inner ring mold (8), and the mold fixing block (4) connected to the outer mold drive motor (2) is fixedly connected to the outer ring mold (7).

2. The opening and closing mold for printing annular parts according to claim 1, characterized in that: The outer ring mold (7) and the inner ring mold (8) are both circular in shape. The outer ring mold (7) and the inner ring mold (8) are each composed of several arc segments. Each arc segment has an independent cooling pipe (9) fixedly installed on one side. Each cooling pipe (9) has a cooling pipe interface (10) at both ends.

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