3D printing heating nozzle with precise temperature control function

Abstract

The utility model belongs to the technical field of 3D printing, and particularly relates to a 3D printing heating nozzle with precise temperature control, which comprises a nozzle mechanism, a first temperature sensor, a temperature control mechanism and a second temperature sensor. When the first temperature sensor detects that the temperature of the heated consumables is lower than a preset value, the second heating rod is turned on to continue to heat the consumables, so that the temperature of the consumables is increased; when a first temperature sensor detects that the temperature of the heated consumables is higher than a preset value, a micro water pump is started to pump out cooling liquid in the cooling box, and the cooling liquid is fed into the cooling box along a first liquid conveying pipe, a liquid inlet pipe, a spiral liquid conveying groove, a liquid outlet pipe and a second liquid conveying pipe in sequence; cooling liquid can absorb heat of the consumables when flowing in the spiral liquid conveying groove, so that the temperature of the consumables is reduced, and a second temperature sensor is arranged and can monitor the temperature of the consumables after temperature control of the consumables is completed.

Description

Technical Field

[0001] This invention belongs to the field of 3D printing technology, specifically relating to a 3D printing heating nozzle with precise temperature control. Background Technology

[0002] 3D printing is a technology that manufactures solid parts by adding materials layer by layer based on three-dimensional CAD data. The heating nozzle is one of the core components of a 3D printer. When the printing operation begins, the filament is continuously squeezed into the heating chamber. The heating tubes in the heating chamber start to heat up, and the thermocouple monitors the temperature change in real time, causing the filament to gradually change from a solid to a liquid state in the heating chamber. When the liquid filament reaches the preset temperature, it overflows from the nozzle outlet under the action of thermal expansion force and gravity, and is deposited on the printing platform, layer by layer to form a three-dimensional object.

[0003] Existing 3D printers typically use heating rods to heat the filament to a molten state. However, it is difficult to precisely control the heating temperature of the heating rods. Temperatures that are too high or too low can easily change the shape of the filament, thus affecting the printing results. Utility Model Content

[0004] The purpose of this invention is to provide a 3D printing heating nozzle with precise temperature control, which solves the problem in the existing technology that the heating rod is difficult to control the heating temperature precisely, and that excessively high or low temperatures can easily change the shape of the consumables, thus affecting the printing effect.

[0005] The specific technical solution adopted in this utility model is as follows:

[0006] A 3D printing heating nozzle with precise temperature control includes:

[0007] A nozzle mechanism, comprising a first feed pipe, a second feed pipe, and a nozzle;

[0008] The first temperature sensor is installed on the inner wall of the first feed pipe and is used to monitor the temperature of the consumable after heating.

[0009] A temperature control mechanism is located at the bottom of the nozzle mechanism and is used to heat up or cool down the heated consumables.

[0010] The second temperature sensor is installed on the inner wall of the second feed pipe and is used to monitor the temperature of the consumable after temperature control.

[0011] In a preferred embodiment, the bottom surface of the first conveying pipe is connected to a second conveying pipe, and the bottom surface of the second conveying pipe is connected to a nozzle.

[0012] In a preferred embodiment, the top surface of the first conveying pipe is connected to a mounting plate.

[0013] In a preferred embodiment, a plurality of first heating rods are installed inside the first feeding pipe, and each first heating rod is provided with a heating wire.

[0014] In a preferred embodiment, the temperature control mechanism includes a cooling box, a micro water pump, an outlet pipe, an inlet pipe, a first delivery pipe, a spiral delivery groove, a second heating rod, and a second delivery pipe. The cooling box is fixedly installed on the outside of the nozzle. The micro water pump is installed on the side of the cooling box. The output end of the micro water pump is connected to the first delivery pipe, and the other end of the first delivery pipe is connected to the inlet pipe. A spiral delivery groove is provided inside the second delivery pipe. Multiple second heating rods are installed inside the second delivery pipe, and heating wires are provided inside the second heating rods. The top of the cooling box is connected to the second delivery pipe, and the other end of the second delivery pipe is connected to the outlet pipe.

[0015] In a preferred embodiment, the two ends of the spiral infusion tank are connected to an outlet pipe and an inlet pipe, respectively.

[0016] The technical effects achieved by this utility model are as follows:

[0017] This invention incorporates a first temperature sensor and a temperature control mechanism. When the first temperature sensor detects that the temperature of the consumable after heating is lower than a preset value, a second heating rod is activated to continue heating the consumable, thereby increasing its temperature. When the first temperature sensor detects that the temperature of the consumable after heating is higher than the preset value, a micro water pump is activated to extract coolant from the cooling tank and sequentially send it into the cooling tank through the first inlet pipe, the inlet pipe, the spiral inlet channel, the outlet pipe, and the second inlet pipe. As the coolant flows through the spiral inlet channel, it absorbs heat from the consumable, thereby reducing its temperature and achieving precise temperature control.

[0018] This invention incorporates a second temperature sensor, which monitors the temperature of the consumable after temperature control is completed. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the front view sectional structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the second material conveying pipe of this utility model;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the second conveying pipe of this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 100. Nozzle mechanism; 101. First feed pipe; 102. Second feed pipe; 103. Nozzle;

[0025] 200, Mounting plate; 300, First heating rod; 400, First temperature sensor;

[0026] 500. Temperature control mechanism; 501. Cooling tank; 502. Miniature water pump; 503. Discharge pipe; 504. Inlet pipe; 505. First infusion pipe; 506. Spiral infusion tank; 507. Second heating rod; 508. Second infusion pipe;

[0027] 600. Second temperature sensor. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of this utility model. However, this utility model may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of this utility model. The phrase "in a preferred embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0031] Secondly, this utility model is described in detail with reference to the schematic diagrams. When detailing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0032] Please see the appendix Figures 1-2 As shown, this utility model provides a 3D printing heating nozzle with precise temperature control, including: nozzle mechanism 100, first temperature sensor 400, temperature control mechanism 500 and second temperature sensor 600. The nozzle mechanism 100 includes a first feed pipe 101, a second feed pipe 102 and a nozzle 103.

[0033] In a preferred embodiment, please refer to Figures 1-2The bottom surface of the first feed pipe 101 is connected to the second feed pipe 102, and the bottom surface of the second feed pipe 102 is connected to the nozzle 103. The nozzle 103 is made of a material with good heat insulation effect. The top surface of the first feed pipe 101 is connected to the mounting plate 200, which facilitates the installation of the nozzle mechanism 100 onto the 3D printer.

[0034] In a preferred embodiment, please refer to Figures 1-2 The first feeding pipe 101 is equipped with multiple first heating rods 300, each with a heating wire inside. The inner wall of the first feeding pipe 101 is equipped with a first temperature sensor 400, and the inner wall of the second feeding pipe 102 is equipped with a second temperature sensor 600.

[0035] In this embodiment, the first heating rod 300, the first temperature sensor 400, and the second temperature sensor 600 are all electrically connected to the controller of the 3D printer.

[0036] In this embodiment, turning on the first heating rod 300 can heat the consumables inside the first feeding tube 101, and the first temperature sensor 400 can monitor the temperature of the consumables after heating.

[0037] In a preferred embodiment, please refer to Figures 1-4 The nozzle mechanism 100 has a temperature control mechanism 500 at its bottom. The temperature control mechanism 500 consists of a cooling tank 501, a micro water pump 502, an outlet pipe 503, an inlet pipe 504, a first delivery pipe 505, a spiral delivery groove 506, a second heating rod 507, and a second delivery pipe 508. The cooling tank 501 is fixedly mounted on the outside of the nozzle 103. The cooling tank 501 stores coolant and is equipped with a cooling mechanism. A micro water pump 502 is mounted on the side of the cooling tank 501. The micro water pump 502 delivers... The inlet end is connected to the inside of the cooling box 501. The output end of the micro water pump 502 is connected to the first liquid delivery pipe 505. The other end of the first liquid delivery pipe 505 is connected to the liquid inlet pipe 504. The inside of the second delivery pipe 102 is provided with a spiral liquid delivery groove 506. Multiple second heating rods 507 are installed inside the second delivery pipe 102. Heating wires are provided inside the second heating rods 507. The top of the cooling box 501 is connected to the second liquid delivery pipe 508. The other end of the second liquid delivery pipe 508 is connected to the liquid outlet pipe 503.

[0038] In this embodiment, the two ends of the spiral infusion tank 506 are connected to the outlet pipe 503 and the inlet pipe 504, respectively.

[0039] In this embodiment, when the first temperature sensor 400 detects that the temperature of the consumable after heating is lower than a preset value, the first temperature sensor 400 sends an electrical signal to the controller, and the controller activates the second heating rod 507 to heat the consumable inside the second feed pipe 102, thereby increasing the temperature of the consumable; when the first temperature sensor 400 detects that the temperature of the consumable after heating is higher than the preset value, the first temperature sensor 400 sends an electrical signal to the controller, and the controller activates the micro water pump 502 to extract the coolant inside the cooling tank 501, and sequentially pumps it along the first feed pipe 505 and the inlet pipe. 504, the spiral infusion tank 506, the outlet pipe 503, and the second infusion pipe 508 are fed into the cooling tank 501. When the coolant flows inside the spiral infusion tank 506, it can absorb the heat of the consumables inside the second infusion pipe 102. After the coolant enters the cooling tank 501, the cooling mechanism cools the coolant. The spiral infusion tank 506 allows the coolant to fully exchange heat with the consumables, reducing the temperature of the consumables and thus achieving precise temperature control of the consumables. After the temperature control of the consumables is completed, the second temperature sensor 600 sends an electrical signal to the controller to monitor the temperature of the consumables.

[0040] The working principle of this utility model is as follows:

[0041] In use, the consumable is inserted into the first feed pipe 101, and the first heating rod 300 is turned on to heat the consumable inside the first feed pipe 101. After being heated, the consumable overflows outward along the second feed pipe 102 and the nozzle 103. When the first temperature sensor 400 detects that the temperature of the consumable after heating is lower than a preset value, the first temperature sensor 400 sends an electrical signal to the controller. The controller then activates the second heating rod 507 to heat the consumable inside the second feed pipe 102, thereby increasing the temperature of the consumable. When the first temperature sensor 400 detects that the temperature of the consumable after heating is higher than the preset value, the first temperature sensor 400 sends an electrical signal to the controller, and the controller activates the micro water... Pump 502 draws coolant from inside cooling tank 501 and sequentially sends it into cooling tank 501 through first delivery pipe 505, inlet pipe 504, spiral delivery channel 506, outlet pipe 503, and second delivery pipe 508. When the coolant flows inside spiral delivery channel 506, it can absorb the heat of consumables inside second delivery pipe 102. After entering cooling tank 501, the coolant is cooled by cooling mechanism. Spiral delivery channel 506 allows the coolant to fully exchange heat with consumables, reducing the temperature of consumables and thus achieving precise temperature control of consumables. After temperature control of consumables is completed, the second temperature sensor 600 sends an electrical signal to the controller to monitor the temperature of consumables.

[0042] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the art.

Claims

1. A 3D printing heating nozzle with precise temperature control, characterized in that: include: The nozzle mechanism (100) includes a first feed pipe (101), a second feed pipe (102), and a nozzle (103); The first temperature sensor (400) is installed on the inner wall of the first feed pipe (101) and is used to monitor the temperature of the consumable after heating. Temperature control mechanism (500), the temperature control mechanism (500) is disposed at the bottom of the nozzle mechanism (100), the temperature control mechanism (500) is used to heat up or cool down the heated consumables; The second temperature sensor (600) is installed on the inner wall of the second feed pipe (102) and is used to monitor the temperature of the consumable after temperature control.

2. The 3D printing heating nozzle with precise temperature control according to claim 1, characterized in that: The bottom surface of the first conveying pipe (101) is connected to the second conveying pipe (102), and the bottom surface of the second conveying pipe (102) is connected to the nozzle (103).

3. A 3D printing heating nozzle with precise temperature control according to claim 1, characterized in that: The top surface of the first conveying pipe (101) is connected to an mounting plate (200).

4. A 3D printing heating nozzle with precise temperature control according to claim 1, characterized in that: The first feeding pipe (101) is equipped with a plurality of first heating rods (300), and each first heating rod (300) is provided with a heating wire.

5. A 3D printing heating nozzle with precise temperature control according to claim 1, characterized in that: The temperature control mechanism (500) includes a cooling tank (501), a micro water pump (502), an outlet pipe (503), an inlet pipe (504), a first inlet pipe (505), a spiral inlet trough (506), a second heating rod (507), and a second inlet pipe (508). The cooling tank (501) is fixedly installed on the outside of the nozzle (103). The micro water pump (502) is installed on the side of the cooling tank (501). The output end of the micro water pump (502) is connected to the first inlet pipe. The first infusion tube (505) is connected to an inlet tube (504) at one end. The second feed tube (102) is provided with a spiral infusion groove (506) inside. The second feed tube (102) is equipped with multiple second heating rods (507) inside. The second heating rods (507) are provided with heating wires inside. The top of the cooling box (501) is connected to a second infusion tube (508), and the other end of the second infusion tube (508) is connected to an outlet tube (503).

6. A 3D printing heating nozzle with precise temperature control according to claim 5, characterized in that: The two ends of the spiral infusion tank (506) are connected to the outlet pipe (503) and the inlet pipe (504), respectively.

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