3D printing coiled material feeding device

Abstract

The utility model discloses a 3D printing coiled material feeding device which comprises a frame, a structural block and a heating concave core wheel, the interior of the frame is rotationally connected with a transmission concave core wheel through a bearing, and the interior, located at the bottom of the transmission concave core wheel, of the frame is rotationally connected with the heating concave core wheel through a bearing. Electric heating wires are fixed in the heating concave core wheel at equal intervals through bolts, a gear motor is mounted on one side of the frame through a mounting frame, and a temperature controller is mounted on the side, located at the bottom of the gear motor, of the frame through a mounting base. The speed reduction motor works to drive the transmission concave core wheel to rotate, push consumables to move and feed the consumables, the small air cylinder pushes the cutting knife to move downwards, the consumables can be cut off, and the consumables can be preheated in the conveying process through the temperature controller and the electric heating wire.

Description

Technical Field

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

[0002] 3D printing is a kind of rapid prototyping technology. It is a technology that constructs an object by layer-by-layer printing based on a digital model file and uses powdery metals or plastics and other bondable materials. Most of the 3D printing wire-shaped consumables are sold and stored in rolls, and a feeding device is required to convey them during use.

[0003] The authorized announcement number CN204869673U discloses a feeder that can convey soft and hard consumables. This feeder is suitable for conveying soft or hard consumables, does not need to replace the feeder during printing, can continuously and smoothly supply soft or hard consumables, and will not cause problems such as the feeding roller jamming, consumable loss, and insufficient feeding during the printing process. It can ensure that the printed product is complete without failure and saves 3D printing consumables. The upper cover and bottom cover of the feeding seat of this feeder are integrally made of metal materials. When the consumable passes through the feeding hole, double feeding rollers, and to the discharging hole of the feeding seat, the double feeding rollers can firmly bite the consumable and drive the consumable forward, effectively preventing the consumable from loosening, winding, slipping, and loss. It is suitable for conveying soft and hard consumables, and the feeding seat of this feeder can be replaced and installed on a conventional feeder.

[0004] The deficiencies of the existing feeder that can convey soft and hard consumables are as follows: There is no heating and cutting mechanism on the feeding seat, and the consumable cannot be preheated and cut during the conveying process. Therefore, we propose a 3D printing coil feeding device. Content of the Utility Model

[0005] The main purpose of the utility model is to provide a 3D printing coil feeding device, which can effectively solve the problems in the background technique.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A 3D printing coil feeding device includes a frame, a structural block, and a heating concave core wheel. The inside of the frame is rotatably connected to a driving concave core wheel through a bearing. Inside the frame at the bottom of the driving concave core wheel, a heating concave core wheel is rotatably connected through a bearing. Electric heating wires are equidistantly fixed inside the heating concave core wheel through bolts. On one side of the frame, a reduction motor is installed through a mounting bracket. On one side of the frame at the bottom of the reduction motor, a temperature controller is installed through a mounting seat. On the top of the frame, a wheel type length meter is installed through a mounting seat. At both ends of one side of the frame, connecting rods are welded. A structural block is installed between the connecting rods through a mounting bracket. On the top of the structural block, a small cylinder is installed through a mounting bracket. The output shaft at the bottom of the small cylinder is fixed with a cutting knife through a bolt.

[0008] Further, the detection end of the temperature controller is located inside the heating concave core wheel. The current output end of the temperature controller is electrically connected to the current input end of the electric heating wire through a power cord. Magnesium oxide powder is filled between the heating concave core wheel and the electric heating wire; the magnesium oxide powder plays a role in insulation and heat conduction.

[0009] Further, the output shaft on one side of the reduction motor is connected to the rotating shaft of the driving concave core wheel through a connecting sleeve. An auxiliary concave core wheel is rotatably connected between the driving concave core wheel and the heating concave core wheel; when the reduction motor works, it can drive the driving concave core wheel to rotate.

[0010] Further, the detection wheel of the wheel type length meter is located inside the frame, and the bottom end of the detection wheel is closely attached to the top of the driving concave core wheel.

[0011] Further, a wire groove is penetrated inside the structural block, and the cutting knife is located inside the wire groove.

[0012] Compared with the prior art, the present utility model has the following beneficial effects:

[0013] When the reduction motor works, it drives the driving concave core wheel to rotate. The rotation of the driving concave core wheel pushes the consumable to move through the auxiliary concave core wheel for feeding. When the small cylinder is opened to push the cutting knife down, the consumable can be cut off when not in use. The set value of the temperature controller is set to control the heating of the electric heating wire. The magnesium oxide powder can absorb the temperature after the electric heating wire is heated and conduct it to the heating concave core wheel to preheat the consumable during the conveying process. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of a 3D printing coil feeding device of the present utility model.

[0015] Figure 2 It is a schematic diagram of the internal structure of the structural block of a 3D printing coil feeding device of the present utility model.

[0016] Figure 3Schematic diagram of the internal structure of the heating concave core wheel of a 3D printing coil feeding device of the present utility model.

[0017] In the figure: 1, frame; 2, structural block; 3, heating concave core wheel; 4, driving concave core wheel; 5, auxiliary concave core wheel; 6, wheel type length meter; 7, detection wheel; 8, reduction motor; 9, temperature controller; 10, small cylinder; 11, connecting rod; 12, wire groove; 13, cutting knife; 14, electric heating wire; 15, magnesium oxide powder. Specific embodiments

[0018] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] As Figures 1-3 shown, a 3D printing coil feeding device includes a frame 1, a structural block 2 and a heating concave core wheel 3. The inside of the frame 1 is rotatably connected to a driving concave core wheel 4 through a bearing. The inside of the frame 1 at the bottom of the driving concave core wheel 4 is rotatably connected to a heating concave core wheel 3 through a bearing. Electric heating wires 14 are equidistantly fixed inside the heating concave core wheel 3 by bolts. A reduction motor 8 is installed on one side of the frame 1 through a mounting bracket. A temperature controller 9 is installed on one side of the frame 1 at the bottom of the reduction motor 8 through a mounting seat. A wheel type length meter 6 is installed on the top of the frame 1 through a mounting seat. Connecting rods 11 are welded at both ends on one side of the frame 1. A structural block 2 is installed between the connecting rods 11 through a mounting bracket. A small cylinder 10 is installed on the top of the structural block 2 through a mounting bracket. The output shaft at the bottom of the small cylinder 10 is fixed with a cutting knife 13 by bolts.

[0020] Among them, as Figure 1 and Figure 3 shown, the detection end of the temperature controller 9 is located inside the heating concave core wheel 3. The current output end of the temperature controller 9 is electrically connected to the current input end of the electric heating wire 14 through a power cord. Magnesium oxide powder 15 is filled between the heating concave core wheel 3 and the electric heating wire 14. By setting the set value of the temperature controller 9, the heating of the electric heating wire 14 and its heating temperature can be controlled.

[0021] Among them, as Figure 1 shown, the output shaft on one side of the reduction motor 8 is rotationally connected to the rotating shaft of the driving concave core wheel 4 through a connecting sleeve. An auxiliary concave core wheel 5 is rotatably connected between the driving concave core wheel 4 and the heating concave core wheel 3. The setting of the auxiliary concave core wheel 5 can assist the movement of the consumables.

[0022] Among them, as Figure 1As shown, the detection wheel 7 of the wheel meter 6 is located inside the frame 1, and the bottom end of the detection wheel 7 is closely attached to the top of the transmission concave core wheel 4. The rotation of the detection wheel 7 can detect the length of the consumables, and the detected data is transmitted to the wheel meter 6 for processing and display, so that personnel can understand the length of the used consumables.

[0023] Among them, Figure 2 As shown, a wire groove 12 is formed inside the structural block 2, and the cutting knife 13 is located inside the wire groove 12. The small cylinder 10 pushes the cutting knife 13 downward to cut off the consumables passing through the wire groove 12.

[0024] It should be noted that the utility model is a 3D printing coil feeding device. When working, the personnel use bolts to install the frame 1 on the 3D printer, use the power cord to connect the device to the external power supply, use the air pipe to connect the small cylinder 10 to the external air supply equipment, pull out one end of the consumable and pass it through the transmission concave core wheel 4 and the auxiliary concave core wheel 5, and pass through the wire groove 12, turn on the reduction motor 8 to drive the transmission concave core wheel 4 to rotate, the transmission concave core wheel 4 rotates and pushes the consumable to move through the auxiliary concave core wheel 5 to feed it, turn on the small cylinder 10 to push the cutting knife 13 downward, and the consumable can be cut off when it is not in use. When the movable concave core wheel 4 rotates, it can drive the detection wheel 7 to rotate. The rotation of the detection wheel 7 can detect the length of the consumables. The detected data is transmitted to the wheel meter 6 for processing and display, so that personnel can understand the length of the used consumables. If the consumables need to be preheated, one end of the consumables is passed through the transmission concave core wheel 4 and the auxiliary concave core wheel 5, and then through the auxiliary concave core wheel 5 and the heating concave core wheel 3, and then through the wire groove 12. The personnel set the setting value of the temperature controller 9 to control the heating of the electric heating wire 14. The magnesium oxide powder 15 can absorb the temperature of the electric heating wire 14 after heating and conduct it to the heating concave core wheel 3, so as to preheat the consumables during the transportation process.

[0025] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A 3D printing coil feeding device, comprising a frame (1), a structural block (2) and a heating concave core wheel (3), characterized in that: Inside the frame (1), a transmission concave core wheel (4) is rotatably connected through a bearing. Inside the bottom of the frame (1) where the transmission concave core wheel (4) is located, a heating concave core wheel (3) is rotatably connected through a bearing. Inside the heating concave core wheel (3), electric heating wires (14) are equidistantly fixed by bolts. On one side of the frame (1), a reduction motor (8) is installed through a mounting bracket. On one side of the frame (1) at the bottom of the reduction motor (8), a thermostat (9) is installed through a mounting seat. On the top of the frame (1), a wheel type length meter (6) is installed through a mounting seat. At both ends on one side of the frame (1), connecting rods (11) are welded. Between the connecting rods (11), a structural block (2) is installed through a mounting bracket. On the top of the structural block (2), a small cylinder (10) is installed through a mounting bracket. The output shaft at the bottom of the small cylinder (10) is fixed with a cutting knife (13) by bolts.

2. The 3D printing coil feeding device according to claim 1, characterized in that: The detection end of the thermostat (9) is located inside the heating concave core wheel (3). The current output end of the thermostat (9) is electrically connected to the current input end of the electric heating wire (14) through a power line. Magnesium oxide powder (15) is filled between the heating concave core wheel (3) and the electric heating wire (14).

3. A 3D printing coil feeding device according to claim 1, characterized in that: The output shaft on one side of the reduction motor (8) is rotationally connected to the rotating shaft of the transmission concave core wheel (4) through a connecting sleeve. An auxiliary concave core wheel (5) is rotatably connected between the transmission concave core wheel (4) and the heating concave core wheel (3) through a bearing.

4. A 3D printing coil feeding device according to claim 1, characterized in that: The detection wheel (7) of the wheel type length meter (6) is located inside the frame (1). The bottom end of the detection wheel (7) is closely attached to the top of the transmission concave core wheel (4).

5. A 3D printing coil feeding device according to claim 1, characterized in that: A wire groove (12) is penetrated and opened inside the structural block (2). The cutting knife (13) is located inside the wire groove (12).

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