Spray head protection device of 3D printer

Abstract

The utility model discloses a 3D printer nozzle protection device, concretely relates to 3D printer technical field, including lantern ring, locking subassembly and protection subassembly, lantern ring passes through locking subassembly fixed on nozzle top, the protection subassembly is provided between adjacent locking subassembly, protection subassembly passes through locking sleeve and lantern ring connection, locking subassembly includes screw, knob, splint etc. The fixing lantern ring can be adjusted; the protection assembly is composed of a supporting rod, a protection plate, a spring and the like and has the mechanical buffering function and the electrical linkage shutdown function. When the guard plate is collided, the spring is compressed to make the pole piece contact and trigger the circuit to be disconnected, and dual protection is achieved. The nozzle protection device has the advantages of being simple in structure, reliable in protection effect and capable of effectively preventing the nozzle from being damaged due to collision.

Description

Technical Field

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

[0002] 3D printers construct objects by stacking materials layer by layer, and their nozzles, as the core execution components, need to be moved frequently during the printing process.

[0003] However, existing 3D printer printheads generally lack effective protective measures. When program errors, mechanical failures, or external interference occur during equipment operation, the printhead may collide with the printer housing, worktable, or other components. Such collisions can range from minor issues like printhead misalignment and decreased printing accuracy to more serious problems such as damage to the internal structure of the printhead, material leakage, or even complete machine failure. This not only increases maintenance costs but may also affect production schedules.

[0004] Existing protection solutions mostly rely on limit alarms at the device software level, but the response is lagging and cannot directly buffer physical impacts.

[0005] Therefore, a nozzle protection device for 3D printers is proposed. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a nozzle protection device for a 3D printer to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a nozzle protection device for a 3D printer, comprising a collar, on which multiple locking components are installed, and protective components are provided between adjacent locking components. Each protective component is connected to a locking sleeve, and each protective component is connected to the collar through a corresponding locking sleeve.

[0008] Preferably, the locking assembly includes a screw, a knob, a bearing, a clamping plate, and guide rods. A knob is provided at one end of the screw, and a bearing is provided at the other end of the screw. The bearing is connected to the clamping plate, and two guide rods are provided on one side of the clamping plate, located on both sides of the screw.

[0009] Preferably, the collar has a screw hole, and guide holes are provided on both sides of the screw hole.

[0010] Preferably, the screw is screwed into the screw hole, and the guide rod is inserted into the corresponding guide hole.

[0011] Preferably, the protective assembly includes a support rod, a guard plate, a baffle, a protrusion, and a spring. One end of the support rod is provided with a guard plate, and the other end of the support rod is provided with a baffle. A protrusion is coaxially provided on one side of the baffle, and a spring is sleeved on the protrusion.

[0012] Preferably, the collar has an installation groove, a protrusion is installed in the installation groove, and a locking sleeve is screwed into the groove opening. The support rod is connected to the baffle in the installation groove through the locking sleeve.

[0013] Preferably, a first electrode plate is installed in the middle of the protrusion, and a second electrode plate is installed in the middle of the protrusion.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] The ring-shaped protective assembly is formed by multiple protective components on the collar. If a collision occurs during the movement of the nozzle, the protective plate will first contact the object that collides with it and absorb the impact force through spring compression, thus preventing direct damage to the nozzle. The locking assembly can adjust the position of the clamp plate through the cooperation of the screw and the guide rod, so that the collar is firmly installed on the top of the nozzle, improving the installation reliability of the protective device.

[0016] The first and second pole pieces are respectively set by the protrusions in the protective component and the protrusions in the collar mounting groove. When the collision causes the spring to compress to the point where the two pole pieces contact, the circuit can be triggered to disconnect, so that the 3D printer stops running immediately and prevents the nozzle from continuing to move and aggravating the damage. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the locking assembly of this utility model.

[0020] Figure 4 This is a schematic diagram of the structure of the protective component of this utility model.

[0021] The attached figures are labeled as follows: 1. Collar; 2. Locking assembly; 201. Screw; 202. Knob; 203. Shaft seat; 204. Clamping plate; 205. Guide rod; 3. Protective assembly; 301. Support rod; 302. Protective plate; 303. Baffle; 304. Protrusion; 305. Spring; 4. Locking sleeve; 5. Protrusion. Detailed Implementation

[0022] 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.

[0023] As attached Figure 1-4 The nozzle protection device of a 3D printer shown includes a collar 1, on which a plurality of locking components 2 are installed. A protective component 3 is provided between adjacent locking components 2. Each protective component 3 is connected to a locking sleeve 4. Each protective component 3 is connected to the collar 1 through a corresponding locking sleeve 4.

[0024] In practice, by fitting the collar 1 onto the nozzle of the 3D printer, and by pressing the connecting structure at the top of the nozzle through the locking components 2, the collar 1 is fixed above the nozzle. When the 3D printer is running, the protective components 3 can protrude outside the collar 1 when the nozzle moves. Multiple protective components 3 are arranged in a ring for protection. In the event of a collision, the protective components 3 can first come into contact with the point of impact, thereby protecting the nozzle and preventing it from being directly damaged by the collision.

[0025] The locking assembly 2 includes a screw 201, a knob 202, a bearing seat 203, a clamping plate 204, and guide rods 205. One end of the screw 201 is provided with a knob 202, and the other end of the screw 201 is provided with a bearing seat 203. The bearing seat 203 is connected to the clamping plate 204. Two guide rods 205 are provided on one side of the clamping plate 204, located on both sides of the screw 201.

[0026] The collar 1 has a screw hole, and guide holes are provided on both sides of the screw hole.

[0027] The screw 201 is screwed into the screw hole, and the guide rod 205 is inserted into the corresponding guide hole.

[0028] In practice, by rotating the knob 202, the screw 201 rotates in the screw hole, allowing the screw 201 to move closer to or away from the center of the collar 1. The two guide rods 205 guide and limit the clamping plate 204, preventing the connection between the clamping plate 204 and the bearing seat 203 from being too loose, thus avoiding the alignment of the clamping plate 204 with the nozzle connection and improving the efficiency of fixed installation.

[0029] The protective component 3 includes a support rod 301, a guard plate 302, a baffle 303, a protrusion 304, and a spring 305. The guard plate 302 is provided at one end of the support rod 301, and the baffle 303 is provided at the other end of the support rod 301. A protrusion 304 is coaxially provided on one side of the baffle 303, and a spring 305 is sleeved on the protrusion 304.

[0030] The collar 1 has an installation groove, a protrusion 5 is installed in the installation groove, and the locking sleeve 4 is screwed into the groove opening. The support rod 301 is connected to the baffle 303 in the installation groove through the locking sleeve 4.

[0031] The first electrode plate is installed in the middle of the protrusion 304, and the second electrode plate is installed in the middle of the protrusion 5.

[0032] In practice, when the protective plate 302 is impacted, guided by the locking sleeve 4 and the inner wall of the mounting groove, the baffle 303 compresses the spring 305. The spring 305 absorbs the impact force generated by the impact. Through the blocking of the protective plate 302, the nozzle of the 3D printer is prevented from being directly impacted, thereby improving the protection of the nozzle. When the protective plate 302 is impacted, the spring 305 is compressed, causing the protrusion 304 to contact the protrusion 5. When the first electrode and the second electrode are in contact, the circuit connecting the first electrode and the second electrode is connected to the two poles of the relay installed on the power supply circuit of the 3D printer. This causes the relay to control the power supply circuit of the 3D printer to disconnect, allowing the 3D printer to stop in time, thereby preventing the nozzle from continuing to move, thus further enhancing the protective effect.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A nozzle protection device for a 3D printer, comprising a collar (1), characterized in that: Multiple locking components (2) are installed on the collar (1), and protective components (3) are provided between adjacent locking components (2). Each protective component (3) is connected to a locking sleeve (4), and each protective component (3) is connected to the collar (1) through the corresponding locking sleeve (4).

2. The nozzle protection device for a 3D printer according to claim 1, characterized in that: The locking assembly (2) includes a screw (201), a knob (202), a bearing seat (203), a clamping plate (204), and guide rods (205). One end of the screw (201) is provided with a knob (202), and the other end of the screw (201) is provided with a bearing seat (203). The bearing seat (203) is connected to the clamping plate (204), and two guide rods (205) are provided on one side of the clamping plate (204) on both sides of the screw (201).

3. The nozzle protection device for a 3D printer according to claim 2, characterized in that: The collar (1) has a screw hole, and guide holes are provided on both sides of the screw hole.

4. The nozzle protection device for a 3D printer according to claim 3, characterized in that: The screw (201) is screwed into the screw hole, and the guide rod (205) is inserted into the corresponding guide hole.

5. The nozzle protection device for a 3D printer according to claim 4, characterized in that: The protective component (3) includes a support rod (301), a guard plate (302), a baffle (303), a protrusion (304), and a spring (305). One end of the support rod (301) is provided with a guard plate (302), and the other end of the support rod (301) is provided with a baffle (303). A protrusion (304) is coaxially provided on one side of the baffle (303), and a spring (305) is sleeved on the protrusion (304).

6. The nozzle protection device for a 3D printer according to claim 5, characterized in that: The collar (1) has an installation groove, a protrusion (5) is installed in the installation groove, and a locking sleeve (4) is screwed into the groove of the installation groove. The support rod (301) is connected to the baffle (303) in the installation groove through the locking sleeve (4).

7. The nozzle protection device for a 3D printer according to claim 6, characterized in that: The first electrode is installed in the middle of the protrusion (304), and the second electrode is installed in the middle of the protrusion (5).

Images