A reciprocating wire winding machine for 3D printers

Abstract

The present invention discloses a reciprocating wire winding machine for a 3D printer, which includes a wire winding wheel, a telescopic adjusting shaft, a wire winding shaft, and a first servo motor. The telescopic adjusting shaft is axially slidably engaged with the wire winding shaft and rotates synchronously with the wire winding shaft. The telescopic adjusting shaft and the wire winding shaft are driven by the first servo motor to rotate synchronously. A straight tooth section is provided on the wire winding shaft, and incomplete gears driven by a second servo motor are provided on both sides of the straight tooth section. The two incomplete gears alternately engage with the straight tooth section to drive the wire winding shaft to perform axial reciprocating motion. By using the wire winding machine of the present application, on the one hand, the wire winding shaft and the wire winding wheel are driven by the first servo motor to rotate, so that automatic wire winding can be realized, greatly improving the wire winding efficiency. On the other hand, through the meshing transmission between the incomplete gear and the straight tooth section, the wire winding shaft and the wire winding wheel can be driven to perform axial reciprocating motion, thereby greatly improving the uniformity of the wire distribution on the wire winding wheel and being beneficial to improving the wire winding quality.

Description

Technical Field

[0001] The invention relates to the technical field of 3D printing, and in particular to a reciprocating wire winding machine for a 3D printer. Background Art

[0002] 3D printer, also known as three-dimensional printer (3DP), is a machine of cumulative manufacturing technology, that is, rapid prototyping technology. It is based on a digital model file and uses special wax materials, powdered metal or plastic and other adhesive materials to print layers of adhesive materials to make three-dimensional objects. At present, 3D printers are used to manufacture products. The technology of constructing objects by printing layer by layer. The principle of 3D printer is to put data and raw materials into the 3D printer, and the machine will make the product layer by layer according to the program.

[0003] 3D printers involve the conveying and winding of wires. Existing wire winding machines basically use manual winding, which is labor-intensive and labor-intensive, and has high labor costs. In addition, the uniformity of wire winding is poor (the wire is concentrated in a certain area of the winding wheel and is unevenly distributed on the winding wheel), and the quality cannot be guaranteed. It is easy to break wires and blockages during the 3D printing process. At the same time, the existing wire winding machines have a low degree of automation, and manual control leads to a low qualified rate of processed products, and are prone to wire breakage, uneven wire size, and other problems, which need to be improved urgently. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a reciprocating wire winding machine for a 3D printer so as to improve the automation, efficiency and uniformity of wire winding.

[0005] The present invention solves the above-mentioned problem through the following technical means: a reciprocating wire winding machine for a 3D printer, comprising a wire winding wheel, a telescopic adjustment shaft, a wire winding shaft and a first servo motor, wherein the wire winding wheel is installed on the wire winding shaft, the telescopic adjustment shaft is axially slidably matched with the wire winding shaft and rotates synchronously with the wire winding shaft, and the telescopic adjustment shaft and the wire winding shaft are driven to rotate synchronously by the first servo motor; a spur tooth segment is arranged on the wire winding shaft, and incomplete gears driven to rotate by a second servo motor are arranged on both sides of the spur tooth segment, and the two incomplete gears are alternately meshed with the spur tooth segment to drive the wire winding shaft to perform axial reciprocating motion.

[0006] Furthermore, the telescopic adjustment shaft and the wire winding shaft are circumferentially positioned by a key.

[0007] Furthermore, the first servo motor is drivingly connected to the telescopic adjustment shaft via a coupling.

[0008] Furthermore, the wire winding wheel, the wire winding shaft, the telescopic adjustment shaft, the first servo motor, the incomplete gear, the second servo motor and the coupling are integrated together through the base.

[0009] Further, both the telescopic adjustment shaft and the wire winding shaft are connected to the base through brackets.

[0010] Further, the telescopic adjustment shaft is connected to the corresponding bracket through a slewing bearing, and the wire winding shaft is connected to the corresponding bracket through a linear bearing.

[0011] Further, a protective cover is provided outside the straight tooth section.

[0012] Advantages of the present invention:

[0013] The reciprocating wire winding machine for a 3D printer of the present application includes a wire winding wheel, a telescopic adjustment shaft, a wire winding shaft, and a first servo motor. The telescopic adjustment shaft and the wire winding shaft are axially slidably matched and rotate synchronously. The telescopic adjustment shaft and the wire winding shaft are driven by the first servo motor to rotate synchronously. A straight tooth section is provided on the wire winding shaft, and incomplete gears driven by a second servo motor are provided on both sides of the straight tooth section. The two incomplete gears alternately engage with the straight tooth section to drive the wire winding shaft to perform an axial reciprocating motion. By using the wire winding machine of the present application, on the one hand, driving the wire winding shaft and the wire winding wheel to rotate through the first servo motor can achieve automatic wire winding, greatly improving the wire winding efficiency. On the other hand, through the meshing transmission of the incomplete gear and the straight tooth section, the wire winding shaft and the wire winding wheel can be driven to perform an axial reciprocating motion, thereby greatly improving the uniformity of the wire distribution on the wire winding wheel and being beneficial to improving the wire winding quality. Description of the Drawings

[0014] The present invention will be further described below in conjunction with the drawings and embodiments.

[0015] Figure 1 is a schematic external view of the present invention;

[0016] Figure 2 is a schematic structural view of the present invention with the protective cover removed;

[0017] Figure 3 is another perspective view of the present invention with the protective cover removed;

[0018] Figure 4 is the front view of the present invention with the protective cover removed;

[0019] Figure 5 is the top view of the present invention with the protective cover removed;

[0020] Figure 6 is a schematic view of the meshing transmission of the incomplete gear and the straight tooth section. Detailed Embodiments

[0021] The present invention will be described in detail below in conjunction with the drawings.

[0022] As Figure 1-6As shown, this embodiment discloses a reciprocating wire winding machine for a 3D printer, including a wire winding wheel 1, a telescopic adjustment shaft 3, a wire winding shaft 7 and a first servo motor 4. The wire winding wheel 1 is sleeved and assembled on the wire winding shaft 7, and the wire winding wheel 1 and the wire winding shaft 7 rotate synchronously.

[0023] The telescopic adjustment shaft 3 is axially slidably matched with the wire winding shaft 7 and rotates synchronously with the wire winding shaft 7. The telescopic adjustment shaft 3 and the wire winding shaft 7 are driven to rotate synchronously by the first servo motor 4. Specifically, the first servo motor 4 is connected to one end of the telescopic adjustment shaft 3 through a coupling, and the other end of the telescopic adjustment shaft 3 is slidably sleeved with the wire winding shaft 7. The wire winding shaft 7 and the telescopic adjustment shaft 3 are circumferentially positioned by a key 8.

[0024] like Figure 2-6 As shown, the winding shaft 7 is provided with a spur gear segment 9, which is composed of multiple circles of spur teeth extending axially. Both sides of the spur gear segment 9 are provided with incomplete gears 10 driven to rotate by a second servo motor 11. The two incomplete gears 10 are alternately meshed with the spur gear segment 9 to drive the winding shaft 7 to perform axial reciprocating motion. Specifically, when the incomplete gears 10 are meshed with the spur gear segment 9, a gear rack structure is formed, and the incomplete gears 10 on both sides are alternately meshed with the spur gear segment 9 for transmission, thereby driving the winding shaft 7 to perform axial reciprocating motion; since the spur gear segment 9 is provided with spur teeth in a circle, when the winding shaft 7 rotates, the meshing requirements of the incomplete gears can still be met.

[0025] The winding wheel 1 , the winding shaft 9 , the telescopic adjustment shaft 3 , the first servo motor 4 , the incomplete gear 10 , the second servo motor 11 and the coupling are integrated together via the base 5 .

[0026] The telescopic adjustment shaft and the wire winding shaft are both connected to the base through the bracket 6. Specifically, the telescopic adjustment shaft 3 is connected to the corresponding bracket 6 through a slewing bearing to reduce the friction force of the telescopic adjustment shaft rotating relative to the corresponding bracket; the wire winding shaft 7 is connected to the corresponding bracket 6 through a linear bearing to meet the assembly requirements of the axial movement and rotation of the wire winding shaft.

[0027] The outer cover of the spur gear segment 9 is provided with a protective cover 2, and the protective cover 2 covers the incomplete gear to improve the overall safety and aesthetics.

[0028] The wire winding machine of this embodiment can, on the one hand, realize automatic wire winding by driving the wire winding shaft and the wire winding wheel to rotate through the first servo motor, thereby greatly improving the wire winding efficiency. On the other hand, through the meshing transmission of the incomplete gear and the spur tooth segment, the wire winding shaft and the wire winding wheel can be driven to perform axial reciprocating motion, thereby greatly improving the uniformity of the distribution of the wire material on the wire winding wheel, which is beneficial to improving the wire winding quality.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A reciprocating wire winding machine for a 3D printer, characterized in that: It includes a wire winding wheel, a telescopic adjustment shaft, a wire winding shaft and a first servo motor, the wire winding wheel is installed on the wire winding shaft, the telescopic adjustment shaft is axially slidably matched with the wire winding shaft and rotates synchronously with the wire winding shaft, and the telescopic adjustment shaft and the wire winding shaft are driven to rotate synchronously by the first servo motor; a spur tooth segment is arranged on the wire winding shaft, and incomplete gears driven to rotate by the second servo motor are arranged on both sides of the spur tooth segment, and the two incomplete gears are alternately meshed with the spur tooth segment to drive the wire winding shaft to make axial reciprocating motion; the outer cover of the spur tooth segment is provided with a protective cover.

2. The reciprocating wire winding machine for 3D printers according to claim 1, characterized in that: The telescopic adjustment shaft and the wire winding shaft are positioned circumferentially via a key.

3. The reciprocating wire winding machine for 3D printers according to claim 2, characterized in that: The first servo motor is drivingly connected to the telescopic adjustment shaft via a coupling.

4. The reciprocating wire winding machine for 3D printers according to claim 3, characterized in that: The wire winding wheel, the wire winding shaft, the telescopic adjustment shaft, the first servo motor, the incomplete gear, the second servo motor and the coupling are integrated together through a base.

5. The reciprocating wire winding machine for 3D printers according to claim 4, characterized in that: The telescopic adjustment shaft and the wire winding shaft are both connected to the base through a bracket.

6. The reciprocating wire winding machine for 3D printers according to claim 5, wherein: The telescopic adjustment shaft is connected to the corresponding bracket through a slewing bearing.

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