Composite rapid forming precision die

Abstract

The utility model relates to a composite rapid forming precision mold which is characterized by comprising a mold plate, a mold core; the sliding block is embedded into the mold core in a sliding manner, and a through hole is formed in the sliding block; the rod drawing device is fixedly arranged on the template and is used for driving the sliding block to slide; the rotating shaft device is arranged on the template and is used for driving the mold core to rotate; and the annular water path is annularly arranged on the mold core and the rotating shaft device in a surrounding manner. Through cooperation of the rotating device and the extraction device, efficient and accurate demolding is achieved, product damage is avoided, the cylindrical hole forming quality is ensured, meanwhile, when cooling water flows in an annular pipe, the temperature of a mold core can be reduced, the rotating shaft device can be cooled at the same time, and the internal space is saved.

Description

Technical Field

[0001] The utility model relates to the field of injection molds, in particular to a composite rapid molding precision mold. Background Art

[0002] In the field of mold manufacturing, especially for cylindrical hole products that require high precision and high-quality molding, mold design and manufacturing have always been the focus of technical challenges.

[0003] Traditional mold design usually only includes a template, a mold core and a simple demoulding mechanism. This design is often easy to cause damage to the product during the demoulding process, especially when dealing with cylindrical hole products with complex structures and high precision requirements. In addition, during the continuous operation of the mold, due to friction and heat accumulation, the temperature of the mold core and the shaft device will rise rapidly, which will not only affect the precision and life of the mold, but also affect the quality of the product. Setting up a separate cooling system to cool the demoulding mechanism will increase the complexity of the mold and the cost is high. Utility Model Content

[0004] In view of the above situation, it is necessary to provide a composite rapid prototyping precision mold that solves at least one of the above problems, including:

[0005] template;

[0006] Model Ren;

[0007] A slider is slidably embedded in the mold core, and the slider is provided with a through hole;

[0008] A rod pulling device fixedly arranged on the template, used for driving the slide block to slide;

[0009] A rotating shaft device arranged on the template, used to drive the mold core to rotate;

[0010] And an annular waterway, the annular waterway is arranged in an annular manner around the mold core and the rotating shaft device.

[0011] Preferably, the rod-pulling device comprises a base, a first sliding barrel and a rod-pulling device, wherein the base is fixedly disposed on the template, the first sliding barrel is disposed on the base, and the rod-pulling device is slidably disposed on the first sliding barrel.

[0012] Preferably, the rotating shaft device includes a fixed seat, a second sliding barrel, a rack and a gear seat, the fixed seat is fixedly arranged on the template, the second sliding barrel is arranged on the fixed seat, the second sliding barrel is connected to the rack, the rack is gear-engaged with the gear seat, and the gear seat is connected to the mold core.

[0013] Preferably, the annular waterway includes a first straight pipe, a second straight pipe, a first annular pipe and a second annular pipe, the first annular pipe is annularly arranged on the upper half of the rotating shaft device, the second annular pipe is annularly arranged on the lower half of the rotating shaft device, one end of the first annular pipe is connected to one end of the second annular pipe, the first straight pipe and the second straight pipe are arranged on the template, the first straight pipe is connected to the first annular pipe, and the second straight pipe is connected to the second annular pipe.

[0014] Preferably, the cross-sections of the first straight tube and the second straight tube are circular.

[0015] Preferably, the cross-sections of the first annular tube and the second annular tube are elliptical.

[0016] Preferably, the distances between the water pipe sections of the first annular tube and the second annular tube surrounding the rotating shaft device and the surface of the rotating shaft device are always the same.

[0017] Preferably, the first straight tube, the second straight tube, the first annular tube and the second annular tube are all manufactured by integral molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 1. Template; 2. Mold core; 3. Slider; 31. Through hole; 4. Rod pulling device; 41. Base; 42. First slide barrel; 43. Rod pulling device; 5. Rotating shaft device; 51. Fixed seat; 52. Second slide barrel; 53. Rack; 54. Gear seat; 6. Annular waterway; 61. First straight pipe; 62. Second straight pipe; 63. First annular pipe; 64. Second annular pipe.

[0019] Figure 1 It is a structural schematic diagram of a composite rapid prototyping precision mold according to an embodiment of the utility model.

[0020] Figure 2 It is a schematic diagram of the internal structure of the composite rapid prototyping precision mold of the embodiment of the utility model.

[0021] Figure 3 It is a schematic diagram of the internal structure of the composite rapid prototyping precision mold of the embodiment of the utility model.

[0022] Figure 4 It is a schematic diagram of the internal structure of the annular waterway in an embodiment of the utility model.

[0023] Figure 5 It is a schematic diagram of the internal structure of the annular waterway in an embodiment of the utility model.

[0024] Figure 6 It is a cross-sectional view of a composite rapid prototyping precision mold according to an embodiment of the utility model. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the following is a further detailed description of the utility model composite rapid prototyping precision mold in combination with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "center", "longitudinal", "lateral", "up", "down", "left", "right", "inside", "outside", "front end", "rear end", "head", "tail", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood by specific circumstances.

[0028] See also Figures 1 to 6 The composite rapid prototyping precision mold of the embodiment of the utility model includes a template 1; a mold core 2; a slider 3, which is slidably embedded in the mold core 2, and the slider 3 is provided with a through hole 31; a draw rod device 4 fixedly arranged on the template 1, used to drive the slider 3 to slide; a rotating shaft device 5 arranged on the template 1, used to drive the mold core 2 to rotate; and an annular waterway 6, which is arranged in an annular manner around the mold core 2 and the rotating shaft device 5.

[0029] In the above embodiment, the slider 3 is slidably embedded in the mold core 2 and connected to the rotating rod through the through hole 31. These through holes 31 allow the material to flow along its shape during mold forming to form the required cylindrical hole structure. The rod extraction device 4 is fixed on the template 1 and can accurately control the sliding of the slider 3. In the demoulding stage, the rod extraction device 4 starts to work and applies force to make the slider 3 slide along the set trajectory, thereby achieving the initial separation of the mold. However, it may not be enough to rely solely on the rod extraction device 4 for demoulding, because the presence of the cylindrical hole may cause adhesion between the sliders 3. At this time, the rotating shaft device 5 plays a key role. The rotating shaft device 5 is set in the template 1. By rotating the mold core 2, the rotating rod is allowed to swing left and right in the through hole 31. This slight shaking can slightly pry open the two sliders 3, creating favorable conditions for the subsequent demoulding process. The design of the annular waterway 6 takes into account the heat dissipation problem of the mold after long-term work. The annular water channel 6 is arranged around the mold core 2 and the rotating shaft device 5. The circulating coolant can effectively reduce the temperature of the mold core 2 and the rotating shaft device 5 to prevent deformation or damage of the mold due to overheating. This not only improves the service life of the mold, but also ensures the quality of the molded parts. In general, the composite rapid prototyping precision mold achieves efficient and stable demolding of the mold with cylindrical holes through its unique design principle. The mutual cooperation of the draw rod device 4, the rotating shaft device 5 and the annular water channel 6 ensures the accuracy and stability of the mold during the molding and demolding process.

[0030] See also Figures 1 to 6 In another embodiment, the rod pulling device 4 includes a base 41, a first sliding barrel 42 and a rod pulling 43, the base 41 is fixedly set on the template 1, the first sliding barrel 42 is set on the base 41, and the rod pulling 43 is slidably set on the first sliding barrel 42.

[0031] In the above embodiment, the extraction device is mainly composed of a base 41 and a first slide barrel 42. The base 41 is fixedly arranged on the template 1, providing a stable support for the entire extraction device. The first slide barrel 42 is installed on the base 41, and a slideway is designed inside to accommodate the sliding of the extraction rod 43. One end of the extraction rod 43 is connected to the slider 3, and the other end is slidably arranged in the slideway of the first slide barrel 42. This design enables the extraction rod 43 to be pushed and pulled back and forth under the guidance of the slide barrel, thereby controlling the movement of the slider 3 in the mold. When demolding is required, the extraction rod 43 is pushed to slide in the first slide barrel 42 by an external driving mechanism (such as a cylinder, a motor, etc.), thereby driving the slider 3 to gradually detach from the mold core 2. This structural principle ensures the stability and reliability of the demolding process and improves the use efficiency of the mold.

[0032] See also Figures 1 to 6In another embodiment, the rotating shaft device 5 includes a fixed seat 51, a second sliding barrel 52, a rack 53 and a gear seat 54, the fixed seat 51 is fixedly set on the template 1, the second sliding barrel 52 is set on the fixed seat 51, the second sliding barrel 52 is connected to the rack 53, the rack 53 is gear-connected with the gear seat 54, and the gear seat 54 is connected to the mold core 2.

[0033] In the above embodiment, the fixed seat 51 serves as the basis of the entire rotating shaft device 5 and is stably fixed on the template 1 to ensure the stability of the device during operation. The second sliding barrel 52 is arranged on the fixed seat 51 and is connected to the rack 53, and drives the movement of the rack 53 by sliding or linear motion. The rack 53 and the gear seat 54 are connected in a gear connection manner, and this connection method can ensure that the motion transmission between the two is accurate and stable. When the rack 53 moves driven by the second sliding barrel 52, the gear seat 54 will rotate accordingly, thereby driving the mold core 2 connected thereto to rotate. By adjusting the movement amount of the second sliding barrel 52, the relative position of the rack 53 and the gear seat 54 can be accurately controlled, thereby achieving accurate control of the rotation angle of the mold core 2. This structural principle not only ensures the smoothness of the mold during the demoulding process, but also improves the flexibility and adaptability of the mold.

[0034] See also Figures 1 to 6 In another embodiment, the annular waterway 6 includes a first straight pipe 61, a second straight pipe 62, a first annular pipe 63 and a second annular pipe 64, the first annular pipe 63 is annularly arranged on the upper half of the rotating shaft device 5, the second annular pipe 64 is annularly arranged on the lower half of the rotating shaft device 5, one end of the first annular pipe 63 is connected to one end of the second annular pipe, the first straight pipe 61 and the second straight pipe 62 are arranged on the template 1, the first straight pipe 61 is connected to the first annular pipe 63, and the second straight pipe 62 is connected to the second annular pipe 64.

[0035] In the above embodiment, the rotating shaft device 5 is a key part of the mold and is arranged between the mold core 2 and the template 1. Its main function is to ensure that the mold core 2 can move smoothly during the mold closing and opening process to complete the injection molding and demolding operations. Since the rotating shaft device 5 directly contacts the high-temperature mold core 2 during operation, its temperature will also rise rapidly. In order to avoid performance degradation and damage caused by high temperature, it needs to be effectively cooled. In order to achieve this goal, the first annular tube 63 and the second annular tube 64 are respectively arranged in the upper and lower parts of the rotating shaft device 5. The two annular tubes surround the rotating shaft device 5 in an annular shape to form a complete cooling circuit. One end of the first annular tube 63 is connected to one end of the second annular tube 64 to form a closed circulating water circuit. This design not only ensures that the cooling water can be evenly distributed around the rotating shaft device 5, but also greatly simplifies the design of the water system. The first straight tube 61 and the second straight tube 62 are arranged on the template 1 as the inlet and outlet of the cooling water. Through these two straight tubes, the cooling water can smoothly enter and flow out of the mold. When the mold is working, cooling water enters the mold from the first straight tube 61, first flows through the first annular tube 63, and cools the upper half of the rotating shaft device 5; then, the cooling water flows into the second annular tube 64, and cools the lower half of the rotating shaft device 5; finally, the cooling water flows out of the mold through the second straight tube 62, completing a complete cooling cycle. The advantage of this design is that it makes full use of the space inside the mold, and closely integrates the cooling water circuit with the rotating shaft device 5 and the mold core 2. In this way, when the cooling water flows in the annular tube, it can not only reduce the temperature of the mold core 2, but also cool the rotating shaft device 5 at the same time. This double cooling effect greatly improves the heat dissipation efficiency of the mold and ensures that the mold can work stably in a high temperature environment.

[0036] See also Figures 1 to 6 In another embodiment, the cross-sections of the first straight tube 61 and the second straight tube 62 are circular.

[0037] In the above embodiment, the cross-sections of the first straight tube 61 and the second straight tube 62 are both circular. This design not only simplifies the structure of the water system, but also optimizes the flow efficiency of the cooling water. The circular cross-section makes the cooling water encounter less resistance when flowing in the pipe, thereby improving the smoothness of the water flow and the cooling efficiency. At the same time, the design of the circular pipe also enhances the structural strength of the water system, making it more able to withstand the high pressure and high temperature environment during the operation of the mold. When the cooling water enters the mold from the first straight tube 61, flows through the annular tube to cool the rotating shaft device 5 and the mold core 2, and then flows out from the second straight tube 62, the circular cross-section design ensures the continuity and stability of the entire cooling process.

[0038] See also Figures 1 to 6In another embodiment, the cross-sections of the first annular tube 63 and the second annular tube 64 are elliptical.

[0039] In the above embodiment, the elliptical cross section can provide a larger surface area under the same circumference compared to the traditional circular design, which means that the contact area between the cooling water and the pipe wall is larger, thereby enhancing the heat exchange efficiency and making the cooling effect more significant. At the same time, the elliptical design can reduce the use of materials to a certain extent while maintaining the structural strength, thereby achieving a lightweight design. When the cooling water flows through these annular tubes with elliptical cross sections, it can not only effectively reduce the temperature of the mold core 2, but also fully cool the rotating shaft device 5 that passes through the mold core 2 and the template 1, ensuring that it can still work stably in a high temperature environment.

[0040] See also Figures 1 to 6 In another embodiment, the water pipe sections of the first annular tube 63 and the second annular tube 64 surrounding the rotating shaft device 5 are at the same distance from the surface of the rotating shaft device 5 .

[0041] In the above embodiment, the core advantage of this equidistant design is that it ensures that the cooling water can evenly and effectively cover the entire surface of the shaft device 5 when flowing through the annular pipe. Since the water pipe section is at the same distance from the surface of the shaft device 5, the pressure and flow rate of the cooling water at each point can be kept consistent, avoiding the problem of local overheating or insufficient cooling. This evenly distributed cooling effect can not only significantly improve the heat dissipation efficiency of the shaft device 5 and extend its service life, but also ensure that the mold still maintains stable performance under high temperature working environment.

[0042] See also Figures 1 to 6 In another embodiment, the first straight tube 61, the second straight tube 62, the first annular tube 63 and the second annular tube 64 are all manufactured by integral molding.

[0043] In the above embodiment, integrated molding manufacturing means that these pipes are directly formed in a single processing process, rather than being assembled from multiple parts. This manufacturing method greatly reduces the connection points and potential leakage risks between pipes, and improves the overall reliability of the system. At the same time, integrated molding manufacturing also ensures the fluidity and smoothness of the inside of the pipe, reduces water flow resistance, and improves cooling efficiency. Cooling water can flow quickly and evenly in these pipes, effectively reducing the temperature of the mold and the rotating shaft device 5. In addition, integrated molding manufacturing also makes the entire water system more compact and lightweight, which is convenient for layout and installation inside the mold. This not only saves space, but also reduces the overall weight of the mold and improves production efficiency.

[0044] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A composite rapid prototyping precision mold, characterized in that: include: template; Model Ren; A slider is slidably embedded in the mold core, and the slider is provided with a through hole; A rod pulling device fixedly arranged on the template, used for driving the slide block to slide; A rotating shaft device arranged on the template, used to drive the mold core to rotate; And an annular waterway, the annular waterway is arranged in an annular manner around the mold core and the rotating shaft device.

2. The composite rapid prototyping precision mold according to claim 1, characterized in that: The rod-pulling device comprises a base, a first sliding barrel and a rod-pulling device. The base is fixedly arranged on the template, the first sliding barrel is arranged on the base, and the rod-pulling device is slidably arranged on the first sliding barrel.

3. The composite rapid prototyping precision mold according to claim 1, characterized in that: The rotating shaft device includes a fixed seat, a second sliding barrel, a rack and a gear seat, the fixed seat is fixedly arranged on the template, the second sliding barrel is arranged on the fixed seat, the second sliding barrel is connected to the rack, the rack is gear-engaged with the gear seat, and the gear seat is connected to the mold core.

4. The composite rapid prototyping precision mold according to claim 1, characterized in that: The annular waterway includes a first straight pipe, a second straight pipe, a first annular pipe and a second annular pipe. The first annular pipe is annularly arranged in the upper half of the rotating shaft device, and the second annular pipe is annularly arranged in the lower half of the rotating shaft device. One end of the first annular pipe is connected to one end of the second ring. The first straight pipe and the second straight pipe are arranged on the template. The first straight pipe is connected to the first annular pipe, and the second straight pipe is connected to the second annular pipe.

5. The composite rapid prototyping precision mold according to claim 4, characterized in that: The cross sections of the first straight tube and the second straight tube are circular.

6. The composite rapid prototyping precision mold according to claim 4, characterized in that: The cross sections of the first annular tube and the second annular tube are elliptical.

7. The composite rapid prototyping precision mold according to claim 4, characterized in that: The distances between the water pipe sections of the first annular tube and the second annular tube surrounding the rotating shaft device and the surface of the rotating shaft device are always the same.

8. The composite rapid prototyping precision mold according to claim 4, characterized in that: The first straight tube, the second straight tube, the first annular tube and the second annular tube are all manufactured by integral molding.

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