A 3D printer nozzle cleaning device

Abstract

This invention provides a 3D printer nozzle cleaning device, belonging to the field of 3D printing. It includes a cleaning device housing, inside which a cleaning mechanism for cleaning the 3D printer nozzle is installed. A heating component for heating the 3D printer nozzle is located on the top of the housing. Through its cleaning mechanism, this invention allows the rotating motor to drive the lead screw to rotate during use. Because the lead screw is threadedly connected to the fixed plate, it ensures that the lead screw will not deviate radially during rotation, preventing the cleaning needle from moving axially. The cleaning needle can enter the nozzle and accurately and effectively remove residues inside, preventing these residues from clogging the nozzle or affecting material extrusion during printing, thus improving cleaning efficiency.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing, and more specifically, to a 3D printer nozzle cleaning device. Background Technology

[0002] 3D printing is a manufacturing technology that builds three-dimensional entities by depositing materials layer by layer based on digital model files. 3D printing technology is widely used in manufacturing, medical, construction, aerospace, education and scientific research fields. With the development of computer technology and materials science, 3D printing technology has made rapid progress. It mainly uses hot melt plastic to deposit layers on a printing bed and is suitable for manufacturing prototypes and small-batch production.

[0003] A search revealed that Chinese Patent Publication No. CN221737114U discloses a 3D printer nozzle cleaning device, belonging to the field of cleaning device technology. The device includes a base on which a cleaning block is rotatably mounted via a one-way bearing. Several cleaning brush bristles are evenly fixed to the outer circumference of the cleaning block. A through hole is opened in the center of the base's bottom surface, and a vertical shaft is installed inside the through hole. The upper end of the vertical shaft is fixedly connected to the center of the bottom surface of the cleaning block. This device makes cleaning more convenient, faster, and less labor-intensive, and also makes cleaning more comprehensive, reducing cleaning dead spots. However, it still has the following drawbacks:

[0004] 3D printer nozzle clogging is a common problem. While this device can clean the surface of the nozzle using cleaning blocks and brushes, it cannot completely remove internal blockages, requiring manual cleaning of the nozzle's interior afterward, making it impractical. Therefore, a 3D printer nozzle cleaning device is proposed. Utility Model Content

[0005] The purpose of this invention is to address the common problem of nozzle clogging in 3D printers. While this device can clean the surface of the nozzle using cleaning blocks and brushes, it cannot completely remove the blockages inside the nozzle, requiring manual cleaning of the internal blockages afterward, resulting in poor practicality.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0007] The present invention is as follows: a 3D printer nozzle cleaning device, including a cleaning device housing, wherein a cleaning mechanism for cleaning the 3D printer nozzle is provided inside the cleaning device housing, and a heating component for heating the 3D printer nozzle is provided on the top of the cleaning device housing.

[0008] The cleaning mechanism includes two fixing plates that are fixedly connected to the inner wall of the cleaning device housing. Each fixing plate is threaded with a lead screw that passes through the fixing plate. One end of the lead screw is fixedly connected to a rotating motor, and the other end of the lead screw away from the rotating motor is fixedly connected to a cleaning needle.

[0009] As a preferred technical solution of this utility model, the heating component includes a square frame fixedly connected to the top of the cleaning device housing, the square frame is hollow inside, a heating wire is fixedly connected inside the square frame, and a trapezoidal slot is provided on the top of the square frame.

[0010] As a preferred technical solution of this utility model, the bottom of the cleaning device housing is provided with a handle, the surface of the handle is provided with a grip groove, the number of grip grooves is four and they are evenly distributed along the length of the handle, the surface of the handle is provided with a shortcut button, the number of shortcut buttons is three and they are electrically connected to the rotating motor.

[0011] As a preferred technical solution of this utility model, a control panel is provided on the side wall of the outer shell of the cleaning device, and the heating wire is electrically connected to the control panel.

[0012] As a preferred technical solution of this utility model, an inspection door is provided on the side wall of the outer shell of the cleaning device, and a magnetic lock strip is provided on the inner side of the inspection door.

[0013] As a preferred technical solution of this utility model, a magnetic strip is provided on the inner wall of the trapezoidal slot.

[0014] As a preferred technical solution of this utility model, the cleaning needle is made of stainless steel, and the surface of the cleaning needle is coated with a wear-resistant coating, the wear-resistant coating being made of aluminum oxide.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. With the cleaning mechanism in place, when in use, the rotating motor is started to drive the lead screw to rotate. Since the lead screw is threadedly connected to the fixed plate, it is ensured that the lead screw will not deviate radially during rotation, causing the cleaning needle to move axially. The cleaning needle can enter the inside of the printhead and can accurately and effectively remove the residue inside the printhead, preventing these residues from clogging the printhead or affecting material extrusion during printing, thus improving cleaning efficiency.

[0017] 2. With the heating component in place, the trapezoidal slot can effectively fix the cleaning device to the nozzle during use. The heating wire, as the heating element, can quickly generate heat after being powered on, heating the residue inside the nozzle to the working temperature and softening the residue. The square frame helps to distribute the heat evenly, ensuring that the nozzle is heated evenly during the heating process, avoiding local overheating or underheating, making it easier to clean the residue inside the nozzle. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of a 3D printer nozzle cleaning device provided by this utility model;

[0019] Figure 2 A front view structural diagram of a 3D printer nozzle cleaning device provided by this utility model;

[0020] Figure 3 This utility model provides a 3D printer nozzle cleaning device. Figure 2 Three-dimensional sectional view at point AA;

[0021] Figure 4 This utility model provides a 3D printer nozzle cleaning device. Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 A right-side view of a 3D printer nozzle cleaning device provided by this utility model;

[0023] Figure 6 This utility model provides a 3D printer nozzle cleaning device. Figure 5 A three-dimensional sectional view at point BB;

[0024] Figure 7 A left-side view of a 3D printer nozzle cleaning device provided by this utility model;

[0025] Figure 8 This is a rear view structural diagram of a 3D printer nozzle cleaning device provided by this utility model.

[0026] The diagram shows: 1. Cleaning device housing; 2. Cleaning mechanism; 3. Heating component; 4. Handle; 5. Grip groove; 6. Quick button; 7. Control panel; 8. Access door; 9. Magnetic lock strip; 10. Magnetic strip; 201. Fixing plate; 202. Lead screw; 203. Rotating motor; 204. Cleaning needle; 301. Square frame; 302. Heating wire; 303. Trapezoidal slot. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0028] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0029] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] like Figure 1 As shown, this embodiment proposes a 3D printer nozzle cleaning device, including a cleaning device housing 1, a cleaning mechanism 2 for cleaning the 3D printer nozzle is provided inside the cleaning device housing 1, and a heating component 3 for heating the 3D printer nozzle is provided on the top of the cleaning device housing 1.

[0032] like Figure 3 As shown, the cleaning mechanism 2 includes two fixing plates 201 fixedly connected to the inner wall of the cleaning device housing 1, providing a platform for mounting the lead screw 202. The lead screw 202 is threaded onto the fixing plate 201, passing through the fixing plate 201. A rotary motor 203 is fixedly connected to one end of the lead screw 202, and a cleaning needle 204 is fixedly connected to the other end of the lead screw 202 away from the rotary motor 203. The rotary motor 203 drives the lead screw 202 to rotate. Because the lead screw 202 is threadedly connected to the fixing plate 201, the rotational motion of the lead screw 202 is converted into linear motion, causing the cleaning needle 204 to move axially. In use, the rotary motor 203 starts, driving the lead screw 202 to rotate. Because the lead screw 202 is threadedly connected to the fixing plate 201, it is ensured that the lead screw 202 will not deviate radially during rotation, causing the cleaning needle 204 to move axially, so that the cleaning needle 204 can accurately align with the inside of the nozzle for cleaning.

[0033] like Figure 3 and Figure 4As shown, the heating assembly 3 includes a square frame 301 fixedly connected to the top of the cleaning device housing 1. The square frame 301 is hollow inside, and a heating wire 302 is fixedly connected inside the square frame 301. The hollow structure of the square frame 301 forms a heat cavity, allowing the heat generated by the heating wire 302 to be evenly distributed within the cavity. A trapezoidal slot 303 is provided on the top of the square frame 301, which improves heat conduction efficiency. In use, the device is fixed to the nozzle through the trapezoidal slot 303. The heating wire 302 heats the device, causing the hollow structure of the square frame 301 to form a heat cavity, where heat is evenly distributed. At the same time, the square frame 301 increases the contact area with the nozzle, improving the heat conduction efficiency to the nozzle.

[0034] like Figure 1 and Figure 7 As shown, a handle 4 is provided at the bottom of the cleaning device housing 1. Four grip grooves 5 are evenly distributed along the length of the handle 4, providing a convenient grip for the operator. Three shortcut buttons 6 are electrically connected to the rotating motor 203. These buttons correspond to the forward, backward, and stop functions of the cleaning needle 204, respectively. The user can easily operate the device with their thumb while gripping the handle 4. During use, the operator uses the grip grooves 5 to stably control the device and the three shortcut buttons 6 to control the cleaning needle 204.

[0035] like Figure 7 As shown, a control panel 7 is provided on the side wall of the cleaning device housing 1, and the heating wire 302 is electrically connected to the control panel 7. In use, the control panel 7 has a built-in PID controller, which can adjust the temperature of the heating wire 302 in real time.

[0036] like Figure 6 and Figure 8 As shown, an inspection door 8 is provided on the side wall of the outer casing 1 of the cleaning device, and a magnetic lock strip 9 is provided on the inner side of the inspection door 8. In use, the inspection door 8 is fixed by the magnetic lock strip 9. When maintenance is required, a certain pulling force can be applied to open it, which facilitates the maintenance of internal components such as the rotating motor 203 and the lead screw 202.

[0037] like Figure 3 As shown, a magnetic strip 10 is provided on the inner wall of the trapezoidal slot 303. In use, the magnetic strip 10 on the inner wall of the trapezoidal slot 303 can attract metal nozzles, ensuring that the nozzles are in close contact with the trapezoidal slot 303.

[0038] like Figure 3As shown, the cleaning needle 204 is made of stainless steel, and its surface is coated with a wear-resistant coating made of aluminum oxide. During use, the stainless steel provides basic strength, while the high hardness of the aluminum oxide wear-resistant coating effectively resists wear from residual materials inside the nozzle, extending the device's lifespan.

[0039] Specifically, when using this 3D printer nozzle cleaning device: the operator stabilizes the control device by holding the groove 5 (e.g., Figure 1 and Figure 7 As shown), the device is fixed to the nozzle via a trapezoidal slot 303. The heating wire 302 heats the nozzle, causing the hollow structure of the square frame 301 to form a heat cavity. Heat is evenly distributed within the cavity. Simultaneously, the square frame 301 increases the contact area with the nozzle, improving the heat transfer efficiency to the nozzle (e.g., ...). Figure 3 and Figure 4 (As shown), then the motor 203 is started, driving the lead screw 202 to rotate. Since the lead screw 202 is threadedly connected to the fixed plate 201, it ensures that the lead screw 202 will not deviate radially during rotation, driving the cleaning needle 204 to move axially, so that the cleaning needle 204 can accurately align with the inside of the nozzle for cleaning (e.g., Figure 3 (As shown).

[0040] All technical features in this embodiment can be freely combined according to actual needs.

[0041] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A 3D printer nozzle cleaning device, comprising a cleaning device housing (1), characterized in that, The cleaning device housing (1) is provided with a cleaning mechanism (2) for cleaning the nozzle of the 3D printer, and the top of the cleaning device housing (1) is provided with a heating component (3) for heating the nozzle of the 3D printer. The cleaning mechanism (2) includes a fixing plate (201) fixedly connected to the inner wall of the cleaning device housing (1). There are two fixing plates (201). A lead screw (202) is threaded onto the fixing plate (201). The lead screw (202) passes through the fixing plate (201). A rotating motor (203) is fixedly connected to one end of the lead screw (202). A cleaning needle (204) is fixedly connected to the end of the lead screw (202) away from the rotating motor (203).

2. The 3D printer nozzle cleaning device according to claim 1, characterized in that, The heating component (3) includes a square frame (301) fixedly connected to the top of the cleaning device housing (1). The square frame (301) is hollow inside. A heating wire (302) is fixedly connected inside the square frame (301). A trapezoidal slot (303) is provided on the top of the square frame (301).

3. The 3D printer nozzle cleaning device according to claim 1, characterized in that, The bottom of the cleaning device housing (1) is provided with a handle (4), and the surface of the handle (4) is provided with a grip groove (5). There are four grip grooves (5) and they are evenly distributed along the length of the handle (4). There are three shortcut buttons (6) on the surface of the handle (4) and they are electrically connected to the rotating motor (203).

4. A 3D printer nozzle cleaning device according to claim 2, characterized in that, A control panel (7) is provided on the side wall of the outer casing (1) of the cleaning device, and the heating wire (302) is electrically connected to the control panel (7).

5. A 3D printer nozzle cleaning device according to claim 1, characterized in that, The cleaning device housing (1) has an inspection door (8) on its side wall, and a magnetic lock strip (9) is provided on the inside of the inspection door (8).

6. A 3D printer nozzle cleaning device according to claim 2, characterized in that, A magnetic strip (10) is provided on the inner wall of the trapezoidal slot (303).

7. A 3D printer nozzle cleaning device according to claim 1, characterized in that, The cleaning needle (204) is made of stainless steel, and the surface of the cleaning needle (204) is coated with a wear-resistant coating, which is made of aluminum oxide.

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