A temperature-controlled forming component for a 3D printing device

Abstract

This utility model discloses a temperature-controlled forming component for a 3D printing device, including an outer cover and a heat dissipation mechanism. The outer cover has a support frame fixedly connected to its upper interior. The inner walls of the support frame on both the front and rear sides are provided with evenly distributed clearance grooves. An exhaust duct is fixedly connected to the lower rear side of the outer cover. The heat dissipation mechanism includes a base plate, positioning grooves, pads, corrugated copper sheets, and a pressure plate. There are two base plates, with evenly distributed pads and corrugated copper sheets placed between them. The front and rear ends of the corrugated copper sheets are located between two adjacent pads. Positioning grooves are provided in the middle of each base plate. The pads are L-shaped, with their vertical protrusions slidably connected to the interior of the positioning grooves on the same front and rear sides. This temperature-controlled forming component for the 3D printing device slows down the heating rate inside the outer cover through the excellent thermal conductivity of the corrugated copper sheets, reducing the fan start-up frequency and resulting in a smoother temperature change.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing technology, specifically to a temperature-controlled forming component for a 3D printing device. Background Technology

[0002] 3D printing is a digital manufacturing technology that directly creates three-dimensional objects by depositing materials layer by layer. Its core principle involves slicing a three-dimensional digital model, then precisely controlling the deposition or curing of materials using printing equipment to build up the final shape layer by layer. Compared to traditional subtractive manufacturing, it eliminates reliance on molds, enabling the efficient production of complex geometries, customized products, and small-batch parts, significantly reducing R&D cycles and costs. It has already penetrated into fields such as industrial manufacturing, medical, aerospace, construction, education, and cultural and creative industries, promoting on-demand production and distributed manufacturing models.

[0003] 3D printing molding mechanisms are typically enclosed by an outer casing to protect the interior. However, during printing, the heat generated during the molding process raises the temperature inside the casing. To dissipate heat from the interior, a fan is usually installed at the top of the casing. When the internal temperature reaches a set value, the fan turns on, circulating air inside the casing for heat dissipation. However, the fan usually only starts after reaching the set value. Frequent start-stop cycles shorten the fan's lifespan and generate significant noise. Furthermore, the large temperature difference between the outside air and the air inside the casing causes drastic temperature changes when outside air is introduced, especially when the temperature approaches the set fan start temperature. This is detrimental to the molding of temperature-sensitive materials. Therefore, we propose a temperature-controlled molding component for a 3D printing device. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a temperature control forming component for a 3D printing device. By using the good thermal conductivity of the corrugated copper sheet to slow down the heating rate inside the outer casing, reduce the frequency of fan start-up, and make the temperature change more gradual, it can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a temperature-controlled forming component for a 3D printing device, comprising an outer cover and a heat dissipation mechanism; Outer cover: A support frame is fixedly connected to the upper part of the inner side. The inner walls of the front and rear sides of the support frame are provided with evenly distributed clearance grooves. An exhaust duct is fixedly connected to the lower rear side of the outer cover. The heat dissipation mechanism includes a base plate, positioning grooves, pads, corrugated copper sheets, and pressure plates. There are two base plates, with evenly distributed pads and corrugated copper sheets placed between them. The front and rear ends of the corrugated copper sheets are located between two adjacent pads on the left and right sides. Positioning grooves are opened in the middle of the base plates. The pads are "L"-shaped, and the vertical protrusions of the pads are slidably connected to the interior of the positioning grooves on the front and rear sides respectively. Pressure plates are bolted to the upper end of the base plates. The pads and corrugated copper sheets are located between the base plates and the pressure plates vertically adjacent to the base plates. The entire assembly of the base plates, corrugated copper sheets, and pressure plates is placed inside the frame of the support frame. The bolts fixing the pressure plates are located inside the vertically adjacent clearance grooves. The good thermal conductivity of the corrugated copper sheets slows down the heating rate inside the outer casing, reduces the fan start frequency, and makes the temperature change more gradual.

[0006] Furthermore, it also includes a microcontroller, which is located on the front side of the outer casing. The input terminal of the microcontroller is electrically connected to an external power source to control electrical appliances.

[0007] Furthermore, the heat dissipation mechanism also includes arc-shaped blocks, which are respectively disposed on the left and right sides of the inner ends of the two pressure plates. The outer surfaces of the two pads located at the leftmost and rightmost ends of the base plate are chamfered. The outer arc surfaces of the arc-shaped blocks are slidably connected to the inclined surfaces of the chamfers of the vertically adjacent pads, which facilitates the fixing of the pads and the corrugated copper sheets.

[0008] Furthermore, the upper end of the outer cover is fixedly connected to fan covers that are symmetrically distributed on the left and right sides. Each fan cover has a fan fixedly connected to its bottom wall. The input end of each fan is electrically connected to the output end of a microcontroller to supply external air.

[0009] Furthermore, the front end of the support frame is provided with a ramp, which is located at the front end of the frame of the support frame. The fans are all located at the upper end of the ramp to guide the airflow.

[0010] Furthermore, each of the fan covers has a snap-on cover at its upper end, and a filter screen is fixedly connected to the through hole in the middle of the snap-on cover to filter the outside air.

[0011] Furthermore, the inner walls of the front and rear sides and the inner walls of the left and right sides of the outer cover are all fixedly connected with evenly distributed support seats. Temperature sensors are fixedly connected to the middle of each support seat. The temperature sensors are all bidirectionally electrically connected to the microcontroller to detect the internal temperature of the outer cover.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The temperature-controlled forming component of this 3D printing device has the following advantages: 1. During 3D printing, the temperature inside the outer casing gradually increases. Due to its lower density, the hot air is concentrated at the top of the outer casing. The hot air exchanges heat with the corrugated copper sheet, which reduces the rate at which the hot air heats up and decreases the frequency of the fan's start-up.

[0013] 2. When the internal temperature of the outer casing reaches the set value, the fan starts to send in external air. The external air is blocked and diverted by the corrugated copper sheet, causing it to be more dispersed when it blows towards the lower end of the outer casing. When the external air passes through the corrugated copper sheet, it exchanges heat with the corrugated copper sheet, carrying some of the heat from the corrugated copper sheet, which reduces the temperature difference between the external air and the inside of the outer casing, making the cooling more gradual. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the overall structure of the support frame and heat dissipation mechanism of this utility model; Figure 4 This is a schematic diagram of the heat dissipation mechanism of this utility model; Figure 5 This is an enlarged structural diagram of point A in this utility model; Figure 6 This is a schematic diagram of the support frame of this utility model; Figure 7 This is a cross-sectional structural diagram of the fan cover of this utility model.

[0015] In the diagram: 1 Outer cover, 2 Microcontroller, 3 Support frame, 4 Heat dissipation mechanism, 41 Base plate, 42 Positioning groove, 43 Pad, 44 Corrugated copper sheet, 45 Pressure plate, 46 Arc block, 5 Clearance groove, 6 Inclined platform, 7 Fan cover, 8 Fan, 9 Cover, 10 Support base, 11 Temperature sensor, 12 Exhaust duct. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-7 This embodiment provides a technical solution: a temperature-controlled forming component for a 3D printing device, including an outer cover 1 and a heat dissipation mechanism 4; Outer Cover 1: A support frame 3 is fixedly connected to its upper internal end. The inner walls of the front and rear sides of the support frame 3 are provided with evenly distributed clearance grooves 5. An exhaust duct 12 is fixedly connected to the lower rear side of the outer cover 1. A fan cover 7, symmetrically distributed on both sides, is fixedly connected to the upper end of the outer cover 1. Fans 8 are fixedly connected to the bottom walls of the fan covers 7. The input ends of the fans 8 are electrically connected to the output ends of the microcontroller 2. A ramp 6 is provided at the front end of the support frame 3. The ramp 6 is located at the front end of the support frame 3. The fans 8 are all located at the upper end of the ramp 6. A cover 9 is fastened to the upper end of each fan cover 7. A filter screen is fixedly connected to the through hole in the middle of the cover 9. The inner walls of the front and rear sides and the inner walls of the left and right sides of the outer cover 1 are... The wall is fixedly connected with evenly distributed support seats 10. Temperature sensors 11 are fixedly connected to the middle of each support seat 10. Temperature sensors 11 are bidirectionally electrically connected to the microcontroller 2. Temperature sensors 11 detect the temperature at each point and feed it back to the microcontroller 2. When the average temperature detected by temperature sensors 11 exceeds the set temperature of the microcontroller 2, the microcontroller 2 starts the fan 8. The two fans 8 rotate in the same direction and send the outside air into the inside of the outer cover 1. The filter screen in the middle of the cover 9 filters the outside air (the cover 9 is a snap-fit ​​installation method, which is convenient for cleaning the filter screen). The inclined platform 6 plays a guiding role for the outside air sent in by the fan 8, so that the outside air blows towards the corrugated copper sheet 44. Heat dissipation mechanism 4 includes a base plate 41, positioning grooves 42, pads 43, corrugated copper sheets 44, and pressure plates 45. There are two base plates 41, with evenly distributed pads 43 and corrugated copper sheets 44 placed between them. The front and rear ends of the corrugated copper sheets 44 are located between two adjacent pads 43. Positioning grooves 42 are formed in the middle of each base plate 41. The pads 43 are L-shaped, with their vertical protrusions slidably connected to the interiors of the positioning grooves 42 on the same side. Pressure plates 45 are bolted to the upper ends of each base plate 41. The pads 43 and corrugated copper sheets 44 are located between the base plate 41 and the... Between the vertically adjacent pressure plates 45 of the base plate 41, the entire assembly consisting of the base plate 41, corrugated copper sheet 44, and pressure plates 45 is placed inside the frame of the support frame 3. The bolts fixing the pressure plates 45 are located inside the vertically adjacent clearance grooves 5. The heat dissipation mechanism 4 also includes arc-shaped blocks 46, which are respectively set on the left and right sides of the opposite inner ends of the two pressure plates 45. The two pads 43 located at the leftmost and rightmost ends of the base plate 41 have chamfered outer surfaces facing away from each other. The outer arc surfaces of the arc blocks 46 are slidably connected to the chamfered slopes of the vertically adjacent pads 43. When assembling the temperature-controlled forming component of this 3D printing device... The pad 43 and corrugated copper sheet 44 are placed between the two base plates 41 in sequence. The vertical protrusions of the pad 43 slide and connect to the positioning grooves 42 on the front and back sides respectively, thereby positioning the pad 43. Then, the pressure plate 45 is installed, and the arc-shaped blocks 46 on the left and right sides respectively press the vertically adjacent chamfered pads 43. The pads 43 on the left and right sides slide relative to each other in the positioning grooves 42 under pressure, so that the pads 43 and corrugated copper sheet 44 are closely arranged, thereby positioning the pads 43 and corrugated copper sheet 44. During printing, the internal temperature of the outer cover 1 gradually increases, and the air density inside the outer cover 1 decreases after the temperature rises, thus accumulating... At the upper inner part of the outer casing 1, hot air comes into contact with the corrugated copper sheet 44. The corrugated copper sheet 44 is made of copper and has good thermal conductivity. The heat of the hot air is transferred to the corrugated copper sheet 44, realizing heat exchange of the air inside the outer casing 1 and slowing down the heating rate. The corrugated copper sheet 44 is wavy, with a larger contact area. When the fan 8 is started, the external air exchanges heat with the corrugated copper sheet 44 and carries some of the heat from the corrugated copper sheet 44. At the same time, due to the obstruction of the corrugated copper sheet 44, the airflow blowing towards the lower part of the outer casing 1 is more dispersed and carries a certain temperature. The temperature inside the outer casing 1 drops more slowly, and the hot air is discharged from the exhaust pipe 12.

[0018] It also includes a microcontroller 2, which is located on the front side of the outer casing 1, and the input terminal of the microcontroller 2 is electrically connected to an external power supply.

[0019] The working principle of the temperature-controlled forming component of the 3D printing device provided by this utility model is as follows: When assembling the temperature-controlled forming component of this 3D printing device, the pad 43 and the corrugated copper sheet 44 are placed between the two base plates 41 in sequence. The vertical protrusions of the pad 43 are slidably connected to the interior of the positioning grooves 42 on the front and back sides respectively to achieve the positioning of the pad 43. Then, the pressure plate 45 is installed, and the arc-shaped blocks 46 on the left and right sides respectively squeeze the vertically adjacent pads 43 with chamfers. The pads 43 on the left and right sides are squeezed. The pad 43 and the corrugated copper sheet 44 slide relative to each other inside the positioning groove 42, so that they are closely arranged, and the pad 43 and the corrugated copper sheet 44 are positioned. Then, the whole assembly of the corrugated copper sheet 44 and the pressure plate 45 is placed inside the frame of the support frame 3, and then the support frame 3 is installed. The outer cover 1 is then installed outside the molding mechanism of the 3D printing device. During printing, the temperature inside the outer cover 1 gradually rises, and the air density inside the outer cover 1 decreases after the temperature rises, concentrating at the upper part of the inner part of the outer cover 1. The hot air and the corrugated copper sheet 44 slide relative to each other inside the positioning groove 42, so that the pad 43 and the corrugated copper sheet 44 are closely arranged, and the positioning is achieved. 4. Contact: The corrugated copper sheet 44 is made of copper and has good thermal conductivity. Heat from the hot air is transferred to the corrugated copper sheet 44, achieving heat exchange between the air inside the outer casing 1 and the surrounding environment, thus slowing down the heating rate. The corrugated copper sheet 44 is wave-shaped, providing a larger contact area. The temperature sensor 11 detects the temperature at various points and feeds it back to the microcontroller 2. When the average temperature detected by the temperature sensor 11 exceeds the set temperature of the microcontroller 2, the microcontroller 2 starts the fan 8. The two fans 8 rotate in the same direction, sending external air into the outer casing 1. The filter screen in the middle of the cover 9 filters the external air (the cover 9 is a snap-fit ​​installation method, which makes it easy to clean the filter screen). The inclined platform 6 guides the external air supplied by the fan 8, causing the external air to blow towards the corrugated copper sheet 44. The external air exchanges heat with the corrugated copper sheet 44, carrying some of the heat from the corrugated copper sheet 44. At the same time, due to the obstruction of the corrugated copper sheet 44, the airflow blowing towards the lower end of the outer cover 1 is more dispersed and carries a certain temperature. The temperature inside the outer cover 1 drops more slowly, and the hot air is discharged from the exhaust pipe 12.

[0020] It is worth noting that the microcontroller 4 disclosed in the above embodiments can be a PIC16F1823-I / P microcontroller, the temperature sensor 11 can be a 202AT-11 temperature control probe, and the fan 8 can be freely configured according to the actual application scenario. The microcontroller 4 controls the operation of the temperature sensor 11 and the fan 8 using methods commonly used in the prior art.

[0021] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A temperature-controlled shaping assembly of a 3D printing device, characterized by: Includes an outer cover (1) and a heat dissipation mechanism (4); Outer cover (1): A support frame (3) is fixedly connected to the upper part of the inner side. The inner walls of the front and rear sides of the support frame (3) are provided with evenly distributed clearance grooves (5). An exhaust pipe (12) is fixedly connected to the lower rear side of the outer cover (1). Heat dissipation mechanism (4): It includes a base plate (41), a positioning groove (42), a pad (43), a corrugated copper sheet (44), and a pressure plate (45). There are two base plates (41). The pads (43) and corrugated copper sheets (44) are evenly distributed between the two base plates (41). The front and rear ends of the corrugated copper sheets (44) are located between two adjacent pads (43). The center of each base plate (41) is provided with a positioning groove (42). The pads (43) are "L" shaped pads. The vertical protrusions are slidably connected to the inside of the positioning groove (42) on the same side at the front and back. The upper end of the base plate (41) is connected to the pressure plate (45) by bolts. The pad (43) and the corrugated copper sheet (44) are located between the base plate (41) and the pressure plate (45) which is vertically adjacent to the base plate (41). The base plate (41), the corrugated copper sheet (44) and the pressure plate (45) are placed inside the frame of the support frame (3). The bolts that fix the pressure plate (45) are located inside the vertically adjacent clearance groove (5).

2. A temperature controlled shaping assembly for a 3D printing device according to claim 1, wherein: It also includes a microcontroller (2), which is located on the front side of the outer cover (1), and the input terminal of the microcontroller (2) is electrically connected to an external power supply.

3. The temperature controlled shaping assembly of a 3D printing device according to claim 1, wherein: The heat dissipation mechanism (4) also includes an arc block (46), which is respectively located on the left and right sides of the inner ends of the two pressure plates (45). The outer surfaces of the two pads (43) located at the leftmost and rightmost ends of the base plate (41) are chamfered. The outer arc surface of the arc block (46) is slidably connected to the chamfered slope of the vertically adjacent pad (43).

4. The temperature controlled shaping assembly of a 3D printing device according to claim 2, wherein: The upper end of the outer cover (1) is fixedly connected to fan covers (7) symmetrically distributed on the left and right. Fans (8) are fixedly connected to the bottom wall of the fan covers (7). The input end of the fan (8) is electrically connected to the output end of the microcontroller (2).

5. A temperature controlled shaping assembly for a 3D printing device according to claim 4, wherein: The front end of the support frame (3) is provided with a ramp (6), which is located at the front end of the frame of the support frame (3), and the fans (8) are all located at the upper end of the ramp (6).

6. The temperature controlled shaping assembly of a 3D printing device according to claim 4, wherein: The upper end of each fan cover (7) is fastened with a cover (9), and the through hole in the middle of the cover (9) is fixedly connected with a filter screen.

7. The temperature controlled shaping assembly of a 3D printing device according to claim 2, wherein: The inner walls of the front and rear sides and the inner walls of the left and right sides of the outer cover (1) are all fixedly connected with evenly distributed support seats (10), and temperature sensors (11) are fixedly connected to the middle of the support seats (10). The temperature sensors (11) are all bidirectionally electrically connected to the microcontroller (2).

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