3D printing feeding clamping device

Abstract

The utility model relates to a 3D printing feed clamping device including a main body and a pressing member, the main body includes a housing, clamping members, a rotating member and a driving member, the housing is provided with an accommodating cavity, the pressing member is located in the accommodating cavity, one end of the pressing member is provided with an abutting surface, a material is located on the abutting surface, the plurality of clamping members are arranged in the accommodating cavity and surround the pressing member, and the rotating member is located in the accommodating cavity. One end of each clamping piece is in pivot connection with the shell, the other end of each clamping piece is a free end, each clamping piece is provided with a strip-shaped groove, the rotating piece is provided with connecting columns, the connecting columns are connected with the clamping pieces through the strip-shaped grooves respectively, the rotating piece rotates to drive the clamping pieces to contract inwards or expand outwards, and the rotating piece is provided with a connecting part. And the driving piece is connected with the rotating piece through the connecting part. According to the 3D printing feeding clamping device, clamping and releasing of materials can be conveniently controlled, the clamping degree can be controlled according to different materials, and the tension of the materials can be conveniently adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, in particular to a 3D printing feeding clamping device. Background Art

[0002] A 3D printing feed clamping device is a device used to fix and guide materials into a 3D printer, and is used to fix the materials and prevent them from sliding or shifting during the feeding process. For example, the patent with announcement number CN217916789U discloses a 3D printing wire feed clamping device. By setting an elastic component, the gear can drive the wire to move between the gear and the roller when it rotates, and the roller can rotate accordingly, and 3D printing wires of different thicknesses can be transported between the gear and the roller. However, the above technical solution uses the pressure bias material provided by the elastic component. The elastic force of the elastic component cannot be adjusted, and the pressure that different materials can withstand and the tension required for transportation are different. Therefore, its scope of application is limited. Utility Model Content

[0003] In order to solve the problems of the prior art, the utility model provides a 3D printing feed clamping device that can easily adjust the clamping degree and is suitable for different materials.

[0004] The specific technical solution is as follows: A 3D printing feed clamping device includes a main body and a pressing member, the main body includes a shell, a clamping member, a rotating member and a driving member, the shell has a accommodating cavity, the pressing member is located in the accommodating cavity, and a supporting surface is provided at one end of the pressing member, and the material is located on the supporting surface. A number of clamping members are arranged in the accommodating cavity and surround the pressing member, one end of the clamping member is pivotally connected to the shell, and the other end is a free end, the clamping member is provided with a strip groove, the rotating member is provided with a connecting column, and the several connecting columns are respectively connected to the several clamping members through the strip grooves, and the rotation of the rotating member drives the several clamping members to shrink inward or expand outward, and a connecting part is provided on the rotating member, and the driving member is connected to the rotating member through the connecting part.

[0005] In some embodiments, the pressing member has an annular contraction portion, which is located on one side of the abutment surface.

[0006] In some embodiments, the driving member has an inserting portion, which penetrates into the housing and is connected to the connecting portion of the rotating member.

[0007] In some embodiments, the housing includes an annular portion and an upper cover, the upper cover is disposed on the annular portion, the upper cover has a through hole, and the insertion portion passes through the through hole.

[0008] In some embodiments, the connecting portion includes a strip-shaped protrusion, and the inserting portion has a slot that is matched with the strip-shaped protrusion.

[0009] In some embodiments, the rotating member has an annular end surface, and the connecting column is arranged on the annular end surface.

[0010] In some embodiments, the clamping member is arc-shaped.

[0011] In some embodiments, there are three clamping members, and the three clamping members are spaced apart from each other.

[0012] The technical effect of the utility model: the 3D printing feed clamping device of the utility model can easily control the clamping and release of the material, can control the clamping degree according to different materials, and facilitates the adjustment of the material tension. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of a 3D printing feed clamping device according to an embodiment of the present invention.

[0014] Figure 2 This is an exploded view of a 3D printing feed clamping device according to an embodiment of the present invention.

[0015] Figure 3 This is a schematic diagram of a 3D printing feeding and clamping device clamping a material according to an embodiment of the present utility model.

[0016] Figure 4 It is a cross-sectional view of the rotating member and the driving member of an embodiment of the present utility model.

[0017] Figure 5 Schematic diagram of a clamping member according to an embodiment of the present invention. DETAILED DESCRIPTION

[0018] The essential features and advantages of the present invention are further described below with reference to examples, but the present invention is not limited to the examples listed.

[0019] like Figures 1 to 5As shown, a 3D printing feed clamping device according to this embodiment includes a main body 1 and a clamping member 2. The main body 1 includes a housing 3, a clamping member 4, a rotating member 5, and a driving member 6. The housing 3 has a receiving chamber 31, in which the clamping member 2 is located. One end of the clamping member 2 is provided with an abutment surface 21, against which the material 10 is located. Several clamping members 4 are disposed within the receiving chamber 31 and surround the clamping member 2. One end of the clamping member 4 is pivotally connected to the housing 3, while the other end is free. The clamping members 4 are connected to the shaft 31 of the housing 3 through bottom mounting holes 41, allowing the clamping members 4 to rotate relative to the housing 3. The clamping members 4 are provided with strip grooves 42, and the rotating member 5 is provided with connecting posts 51. The connecting posts 51 are connected to the clamping members 4 through the strip grooves 42, respectively. Rotation of the rotating member 5 drives the clamping members 4 to contract inward or expand outward. The rotating member 5 is provided with a connecting portion 52, and the driving member 6 is connected to the rotating member 5 via the connecting portion 52. In the above technical solution, the material 10 is pressed into the accommodating cavity 31 by the abutment surface 21. The rotating member 5 is driven by the rotation of the driving member 6. When the rotating member 5 rotates clockwise or counterclockwise, it causes the plurality of clamping members 4 to contract or expand. When the clamping members 4 contract, they move toward the compression member 2, thereby compressing the material 10. When the clamping members expand, they move away from the compression member 2, releasing the material 10. The driving member 6 is driven to rotate by a motor. This technical solution facilitates the control of the clamping and release of the material, allowing the degree of clamping to be adjusted according to the material, and facilitating material tension adjustment.

[0020] In this embodiment, the pressing member 2 has an annular contraction portion 22, which is located on one side of the abutment surface 21. The material disposed around the abutment surface 21 passes through the annular contraction portion 22 and out of the accommodating cavity 31. The driving member 6 has an insertion portion 61, which penetrates the shell 3 and is connected to the connecting portion 52 of the rotating member 5, thereby enabling the driving member 6 to be connected to the rotating member 5. The shell 3 includes an annular portion 33 and an upper cover 32. The upper cover 32 is disposed on the annular portion 33. The upper cover 32 has a through hole 321. The insertion portion 61 passes through the through hole 321. The assembly of the upper cover 32 and the annular portion 33 facilitates the opening of the upper cover 32. The connecting portion 52 includes a strip-shaped protrusion 521. The insertion portion 61 has a card slot 611. The card slot 611 is matched with the strip-shaped protrusion 521, thereby facilitating the connection between the insertion portion 61 and the connecting portion 52. The rotating member 5 has an annular end surface 53, and the connecting column 51 is disposed on the annular end surface 53, thereby facilitating the positioning of the clamping member 4 by the rotating member 5 and the annular portion 33. The clamping member 4 is arc-shaped, thereby increasing the contact surface with the material. There are three clamping members 4, spaced end to end, to achieve multiple points of contact and enhance clamping stability.

[0021] A 3D printing feed clamping device in this embodiment can easily control the clamping and release of the material, can control the clamping degree according to different materials, and facilitate the adjustment of material tension.

[0022] It should be noted that the above preferred embodiments are merely illustrative of the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to fall within the scope of protection of the present invention.

Claims

1. A 3D printing feed clamping device, comprising a main body and a pressing member, characterized in that: The main body includes a shell, a clamping member, a rotating member and a driving member. The shell has an accommodating cavity. The pressing member is located in the accommodating cavity. A supporting surface is provided at one end of the pressing member. The material is located on the supporting surface. Several clamping members are arranged in the accommodating cavity and surround the pressing member. One end of the clamping member is pivotally connected to the shell, and the other end is a free end. The clamping member is provided with a strip groove. The rotating member is provided with a connecting column. Several connecting columns are respectively connected to several clamping members through the strip grooves. The rotation of the rotating member drives the several clamping members to shrink inward or expand outward. A connecting part is provided on the rotating member, and the driving member is connected to the rotating member through the connecting part.

2. The 3D printing feed clamping device according to claim 1, characterized in that: The pressing piece has an annular contraction portion, which is located on one side of the abutment surface.

3. The 3D printing feed clamping device according to claim 2, characterized in that: The driving member has an inserting portion, which penetrates into the shell and is connected with the connecting portion of the rotating member.

4. The 3D printing feed clamping device according to claim 3, characterized in that: The housing includes an annular portion and an upper cover, wherein the upper cover is arranged on the annular portion and has a through hole, and the insertion portion passes through the through hole.

5. The 3D printing feeding clamping device according to claim 4, characterized in that: The connecting portion includes a strip-shaped protrusion, and the inserting portion has a clamping slot, which is matched with the strip-shaped protrusion.

6. The 3D printing feeding clamping device according to claim 1, characterized in that: The rotating member has an annular end surface, and the connecting column is arranged on the annular end surface.

7. The 3D printing feeding and clamping device according to claim 1, characterized in that: The clamping piece is arc-shaped.

8. The 3D printing feeding and clamping device according to claim 7, characterized in that: There are three clamping pieces, which are spaced apart from each other.

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