一种打印头和打印组件
By employing a combined structure of limiting support, cutting components, and biasing components in FDM 3D printing equipment, along with automated control of levers and drive components, the safety and maintenance convenience issues during cutting component disassembly are resolved, achieving a safe and efficient material change process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAMEN HANIN CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-07-17
AI Technical Summary
In existing FDM 3D printing equipment, during material changing, the cut parts are prone to popping out due to the disassembly of the housing, which may cause injury to the user. In addition, the cutting device has a complex structure, which affects the convenience of maintenance.
It adopts a combined structure of limiting bracket, cutting component and biasing component. The cutting component is covered by a detachable shell. The movement of the cutting component is restricted by the anti-detachment surface and biasing component. Combined with lever and drive component, the cutting component is automatically controlled, which simplifies the structure and prevents accidental damage during disassembly.
It enables safe disassembly and maintenance of the cutting parts, facilitates modular replacement, reduces the risk of user injury, simplifies the maintenance process, and improves the service life and ease of operation of the equipment.
Smart Images
Figure CN224510429U_ABST
Abstract
Claims
1. A printhead, characterized by: include The main body is provided with a feeding channel (21) suitable for conveying printing filaments; The cutting assembly includes a limiting bracket (3), a cutting element (4), and a biasing element (5). The limiting bracket (3) is detachably connected to the main body and has an anti-detachment surface (321). The cutting element (4) is mounted on the limiting bracket (3) and is adapted to move relative to the material passage (21) between a first position extending into the material passage (21) and a second position away from the material passage (21). The cutting element (4) is adapted to be subjected to force to be located in the first position, and in the second position it abuts against the anti-detachment surface (321). The biasing element (5) acts on the cutting element (4) and the limiting bracket (3) at both ends to apply a force to the cutting element (4) toward the second position. A housing (6) is detachably connected to the body and covers the cutting assembly.
2. A printhead as in claim 1, wherein: When the cutting element (4) is in the second position, its end near the material passage (21) is located inside the limiting bracket (3); the cutting element (4) includes a cutter (41) and a fixed bracket (42), the cutter (41) is mounted on the fixed bracket (42) and is adapted to cut the wire, the two ends of the biasing element (5) act on the fixed bracket (42) and the limiting bracket (3) respectively, and the fixed bracket (42) is adapted to abut against the anti-detachment surface (321).
3. A printhead as in claim 2, wherein: The end of the cutter (41) near the material passage (21) has a slanted cut.
4. A printhead as in Claim 2 wherein: The fixed bracket (42) has a first surface (4221) and a second surface (4222) opposite to the first surface (4221). The fixed bracket (42) also has an elastic rib (4223) protruding from the first surface (4221) in the direction of the second surface (4222). The cutter (41) has a locking hole (411). The cutter (41) is adapted to be inserted between the first surface (4221) and the second surface (4222), and the locking hole (411) is adapted to allow the elastic rib (4223) to be inserted.
5. A printhead as in Claim 1, wherein: The cutting element (4) and the limiting bracket (3) are slidably connected along a first direction (81) perpendicular to the material passage (21). There are multiple biasing elements (5), which act on the cutting element (4) and the limiting bracket (3) respectively at both ends along the first direction (81).
6. A printhead as in Claim 1, wherein: The main body includes a main support (1) and a hot end kit (2) detachably connected to the main support (1), the hot end kit (2) being provided with the material passage (21); the limiting support (3) and the housing (6) are both detachably connected to the main support (1).
7. A printhead as claimed in any one of claims 1 to 6 wherein: It also includes a lever (7) rotatably connected to the limiting bracket (3) and at least adapted to act on the cutting element (4) during rotation to move the cutting element (4) to a first position; the housing (6) is provided with an operating hole (61) for the free end of the lever (7) to be exposed.
8. A printhead as in Claim 7 wherein: The lever (7) is detachably rotatably connected to the limiting bracket (3), and the lever (7) is adapted to abut against the cutting element (4).
9. A print assembly characterized by: Includes a drive unit, a slide rail (9), and a print head as described in claim 7 or 8. The main body is slidably connected to the slide rail (9), and the drive unit is adapted to drive the main body to slide. The slide rail (9) is provided with a trigger part (91), which is adapted to abut against the free end of the lever (7) to move the cutting piece (4) to a first position.
10. A print assembly characterized by: The device includes a drive unit, a slide rail (9), and a print head as described in any one of claims 1-8. The main body is slidably connected to the slide rail (9), and the drive unit is adapted to drive the main body to slide. The slide rail (9) is provided with a trigger part (91), which is adapted to abut against the cutting member (4) to move the cutting member (4) to a first position.