工具头和3D打印机

Abstract

本实用新型公开了一种工具头和3D打印机。工具头包括安装座，安装座设有第一吸附件；和可更换打印头，可更换打印头可拆卸地设置在安装座上，可更换打印头包括设置在可更换打印头相背两侧的第二吸附件和第三吸附件，第一吸附件和第二吸附件相互吸附，第三吸附件用于与存储架吸附。本申请实施方式的工具头中，在第一吸附件和第二吸附件相互吸附的情况下，可更换打印头可以预固定在安装座上，使得可更换打印头在解锁后不会脱落，在第三吸附件用于与存储架吸附时，可更换打印头可以存储在存储架上以待更换，从而方便更换可更换打印头。

Claims

1. A tool head for a 3D printer, characterized in that The tool head includes: Mounting base, the mounting base being provided with a first adsorption element; and A replaceable printhead is detachably mounted on the mounting base. The replaceable printhead includes a second adsorption member and a third adsorption member disposed on opposite sides of the replaceable printhead. The first adsorption member and the second adsorption member adsorb to each other, and the third adsorption member is used to adsorb to the storage rack.

2. The tool head of claim 1, wherein, The first and second adsorption elements are magnetic elements that attract each other magnetically; and / or, The third adsorption element is a magnetic element.

3. The tool head of claim 2, wherein, The magnetic force of the first adsorption element attracting the second adsorption element is greater than the magnetic force of the third adsorption element attracting the storage rack.

4. The tool head of claim 2, wherein, The mounting base is equipped with an in-situ Hall sensor, which cooperates with the second adsorption element to detect whether the replaceable printhead is installed on the mounting base.

5. The tool head of claim 2, wherein, The tool head includes a body, and the first suction element is a fastener that passes through the mounting base and is fixedly connected to the body.

6. The tool head of claim 1, wherein, The replaceable printhead includes a hollow tube and a heat sink disposed on the hollow tube, and the second adsorption component is disposed on the heat sink.

7. The tool head of claim 6, wherein, The third adsorption element is a magnetic element, which is disposed on the heat dissipation element. A position Hall sensor is provided at the position corresponding to the third adsorption element on the storage rack. The position Hall sensor cooperates with the second adsorption element to detect whether the replaceable printhead is placed on the storage rack.

8. The tool head of claim 6, wherein, The mounting base has a first positioning surface, and the heat sink has a second positioning surface. Both the first and second positioning surfaces are planar and parallel to the axial direction of the hollow tube. The first and second positioning surfaces abut against each other to restrict the replaceable printhead from rotating relative to the mounting base around the axis of the hollow tube. The end face of the first suction member is flush with or recessed in the first positioning surface. The second suction member is located on the side corresponding to the second positioning surface. When the first and second positioning surfaces abut against each other, the first and second suction members attract each other.

9. The tool head of claim 8, wherein, The heat sink includes at least one fin located on one side of the second positioning surface. The mounting base is provided with a first guide surface connected to the bottom edge of the first positioning surface. The distance between the first guide surface and the replaceable printhead increases from the first positioning surface toward the nozzle. The replaceable printhead is slidably mounted to the first positioning surface from the first guide surface along the axial direction of the hollow tube.

10. The tool head of claim 9, wherein, The mounting base is provided with a second guide surface connected to the side edge of the first positioning surface. There are two second guide surfaces, which are located on the two opposite side edges of the first positioning surface. The two second guide surfaces converge and extend away from the first guide surface.

11. The tool head according to claim 9, characterized in that, The mounting base includes a first mounting component, a second mounting component, and a connector. The connector is disposed between the first mounting component and the second mounting component. The replaceable printhead is at least partially disposed in the space enclosed by the first mounting component, the second mounting component, and the connector. The first mounting component is engaged with the nozzle for limiting connection. The replaceable printhead is engaged with the first mounting component for connection. The first suction component is disposed on the connector.

12. The tool head of claim 11, wherein, The tool head also includes a locking element, which is movably disposed on the second mounting member. The locking element is connected in conjunction with the replaceable printhead to lock the replaceable printhead on the mounting base or unlock it relative to the mounting base.

13. The tool head of claim 12, wherein, The locking member is slidably disposed on the second mounting member. The first adsorption member and the second adsorption member can switch between an adsorption state and a de-adsorption state. The adsorption movement direction between the first adsorption member and the second adsorption member intersects with the sliding direction of the locking member.

14. The tool head of claim 12, wherein, The second mounting member is detachably connected to the connecting member. The connecting member has an adjustment hole. The second mounting member is inserted into the second mounting member through the adjustment hole by an adjustment member to adjust the position of the second mounting member relative to the connecting member, thereby adjusting the position of the locking member.

15. The tool head of claim 12, wherein, The replaceable printhead can detach from the first mounting component along the axial direction. When the replaceable printhead is detached from the first mounting component, the adsorption force between the third adsorption component and the storage rack is greater than the adsorption force between the first adsorption component and the second adsorption component. When the replaceable printhead is engaged with the first mounting component, the adsorption force between the third adsorption component and the storage rack is less than the adsorption force between the first adsorption component and the second adsorption component.

16. The tool head of claim 1, wherein, The tool head also includes a main body and a lifting print head. The tool head moves along the X direction, and the lifting print head and the replaceable print head are arranged side by side along the X direction. The lifting print head can be raised and lowered relative to the main body, and the printing position of the lifting print head is lower than the printing position of the replaceable print head.

17. A 3D printer characterized by, Includes the tool head as described in any one of claims 1-16.

18. The 3D printer of claim 17, wherein, The 3D printer includes a housing and a drive motor. The housing has an operating port, and the drive motor is used to drive the tool head to move closer to or away from the operating port. The drive motor is located on the side of the tool head away from the operating port, and the replaceable print head is located on the side of the tool head facing the operating port.

Images