3D printer compensation device

Abstract

The utility model discloses a 3D printer compensation device which comprises a printing mechanism, a melting mechanism and a compensation mechanism, the printing mechanism comprises a feeding box, a printing nozzle and a melting mechanism, and the printing nozzle and the melting mechanism are connected and communicated with the feeding box. The melting mechanism comprises a heat conduction plate installed in the feeding box, a first electric heating wire section connected with the bottom of the heat conduction plate and a compensation mechanism. The compensation mechanism comprises a backup box fixedly connected with the bottom of the feeding box and a second electric heating wire section wound around the outer side of the backup box. According to the utility model, when a printing material wire entering the feeding box is used up, a molten raw material in the upper cavity continues to feed the printing nozzle, then the electric push rod pushes the extrusion plate to move upwards, and then the molten raw material in the backup box enters the upper cavity through the two material supplementing channels, so that the working time of the printing nozzle is continued; and enough material taking time is provided for workers, and the printing efficiency is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of 3D printer technology, specifically a 3D printer compensation device. Background Technology

[0002] 3D printing is an advanced technology for manufacturing three-dimensional objects. Compared to traditional industrial manufacturing, it does not require molds or large production lines. Simply put, 3D printing involves building an object by stacking materials layer by layer based on a computer-generated three-dimensional model on a single machine.

[0003] Application number CN202022816532.6 relates to a spiral heating device for a 3D printer printhead, including a throat and other structures. This invention has a simple and reasonable structure, is not prone to nozzle clogging, and has a temperature compensation effect, solving the problems of nozzle clogging and filament output in existing 3D printers. In practical use, although there are filament feeding rollers and driven rollers continuously feeding filament, once the printing material filament is used up, the interval when on-site personnel go to retrieve more filament will cause an interruption in the material supply, stopping the printing operation. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows:

[0006] A 3D printer compensation device includes a printing mechanism, a melting mechanism, and a compensation mechanism. The printing mechanism includes a feed box and a print head connected and communicating with the feed box. The melting mechanism includes a heat-conducting plate installed inside the feed box and a section of heating wire connected to the bottom of the heat-conducting plate. The compensation mechanism includes a back box fixed to the bottom of the feed box, two sections of heating wire wound around the outside of the back box, an extrusion plate attached to the bottom of the inner cavity of the back box, an electric push rod connected between the back box and the extrusion plate, and two feeding channels opened on the heat-conducting plate. The two sections of heating wire are seamlessly connected to one end of the first section of heating wire.

[0007] By adopting the above technical solution, when the printing material filament in the feed box is used up, the molten material in the upper cavity will continue to supply the print head. Then, the electric push rod will push the extrusion plate to move up, and then the molten material in the reserve box will enter the upper cavity through two replenishment channels, extending the working time of the print head, providing the staff with sufficient material retrieval time, and ensuring printing efficiency.

[0008] In a preferred embodiment, the present invention can be further configured such that: two guide plates are installed on the top of the feeding box, the two guide plates are arranged opposite each other, and a cylindrical channel is formed between them, the cylindrical channel being connected to the interior of the feeding box.

[0009] In a preferred embodiment, the present invention can be further configured such that: the top of the heat-conducting plate is provided with an arc surface, and the arc surface is located at the bottom of the cylindrical channel.

[0010] In a preferred embodiment, the present invention can be further configured such that: the heat-conducting plate divides the inside of the feed box into an upper cavity and a lower cavity, the upper cavity is located at the top of the lower cavity, the printing nozzle is connected to the inside of the upper cavity, and a section of the heating wire is located inside the lower cavity.

[0011] In a preferred embodiment, the present invention can be further configured such that: two feeding channels are respectively located near the front and rear side walls of the feeding box, and the interior of the rear box is connected to the interior of the upper cavity through the two feeding channels.

[0012] In a preferred embodiment, the present invention can be further configured such that a first protrusion is connected between the bottom of the heat-conducting plate and the bottom of the inner cavity of the feed box, and the first protrusion is located on the outer side of the top of the print head.

[0013] In a preferred embodiment, the present invention can be further configured such that: a second protrusion is connected between the bottom of the heat-conducting plate and the bottom of the inner cavity of the feeding box, the second protrusion is located on one side of the rear box, and a section of the heating wire is located between the first protrusion and the second protrusion.

[0014] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0015] In this invention, when the printing material filament in the feed box is used up, the molten material in the upper cavity will continue to supply the print head. Then, the electric push rod will push the extrusion plate upward, and the molten material in the reserve box will enter the upper cavity through two replenishment channels, extending the working time of the print head, providing the operator with sufficient material retrieval time, and ensuring printing efficiency. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the feed box of this utility model;

[0018] Figure 3 This is a schematic diagram of the printing mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the melting mechanism of this utility model;

[0020] Figure 5 This is a schematic diagram of the layout of one section of the electric heating wire of this utility model;

[0021] Figure 6 This is a schematic diagram of the compensation mechanism of this utility model.

[0022] Figure label:

[0023] 100. Printing mechanism; 110. Feed box; 120. Print head;

[0024] 200. Melting mechanism; 210. Heat-conducting plate; 220. One section of heating wire;

[0025] 300. Compensation mechanism; 310. Rear trunk box; 320. Two-section electric heating wire; 330. Extrusion plate; 340. Electric push rod; 350. Material replenishment channel;

[0026] 400. Guide plate;

[0027] 500, curved surface;

[0028] 600, First protrusion;

[0029] 700, Second protrusion. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0031] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0032] The following describes, with reference to the accompanying drawings, some embodiments of a 3D printer compensation device provided by this utility model.

[0033] Example 1:

[0034] Combination Figure 1-6 As shown, the present invention provides a 3D printer compensation device, including a printing mechanism 100, a melting mechanism 200 and a compensation mechanism 300. The printing mechanism 100 includes a feed box 110 and a printing nozzle 120 connected and communicating with the feed box 110.

[0035] The melting mechanism 200 includes a heat-conducting plate 210 installed inside the feeding box 110 and a section of heating wire 220 connected to the bottom of the heat-conducting plate 210.

[0036] The compensation mechanism 300 includes a backup box 310 fixed to the bottom of the feeding box 110, two sections 320 of heating wire wound around the outside of the backup box 310, an extrusion plate 330 attached to the bottom of the inner cavity of the backup box 310, an electric push rod 340 connected between the backup box 310 and the extrusion plate 330, and two feeding channels 350 opened on the heat-conducting plate 210. The two sections 320 of heating wire are seamlessly connected to one end of the first section 220 of heating wire.

[0037] Furthermore, the heat-conducting plate 210 divides the inside of the feed box 110 into an upper cavity and a lower cavity. The upper cavity is located at the top of the lower cavity. The printing nozzle 120 is connected to the inside of the upper cavity. The section of the heating wire 220 is located inside the lower cavity. The arrangement of the upper cavity and the lower cavity ensures that the melted printing material filament will not come into contact with the section of the heating wire 220, thus protecting the section of the heating wire 220.

[0038] Furthermore, the two replenishment channels 350 are located near the front and rear side walls of the feeding box 110, respectively. The interior of the backup box 310 is connected to the interior of the upper cavity through the two replenishment channels 350. The layout design of the replenishment channels 350 allows the raw materials in the backup box 310 to be quickly replenished to the upper cavity.

[0039] Example 2:

[0040] Combination Figure 1-2 As shown, based on Embodiment 1, two guide plates 400 are installed on the top of the feeding box 110. The two guide plates 400 are arranged opposite each other, forming a cylindrical channel between them. The cylindrical channel is connected to the inside of the feeding box 110. The guide plates 400 can guide the printing material filaments to enter, ensuring that the raw material enters smoothly.

[0041] Furthermore, the top of the heat-conducting plate 210 is provided with an arc surface 500, which is located at the bottom of the cylindrical channel. The arc surface 500 can be bent into the printing material filament in the feed box 110, so that it can melt quickly.

[0042] Example 3:

[0043] Combination Figure 2 , 4 and Figure 5 As shown, in the above embodiment, a first protrusion 600 is connected between the bottom of the heat-conducting plate 210 and the bottom of the inner cavity of the feed box 110. The first protrusion 600 is located on the outer side of the top of the print head 120. The first protrusion 600 allows all the raw material in the upper cavity to enter the print head 120.

[0044] Furthermore, a second protrusion 700 is connected between the bottom of the heat-conducting plate 210 and the bottom of the inner cavity of the feed box 110. The second protrusion 700 is located on one side of the backup box 310. A section of the heating wire 220 is located between the first protrusion 600 and the second protrusion 700. The second protrusion 700 can isolate the lower cavity from the backup box 310, ensuring that the raw material in the backup box 310 can flow into the upper cavity and then be used by the printing nozzle 120.

[0045] The working principle and usage process of this utility model are as follows: When this device is put into actual use, the printing material filament enters the feed box 110 through the cylindrical channel, and then is guided downward by the arc surface 500. The printing material filament bends and then adheres to the heat-conducting plate 210 heated by a section of the heating wire 220. The printing material filament softens until it melts and is then used by the printing nozzle 120. During this process, the material consumption speed of the printing nozzle 120 is much lower than the feeding speed of the printing material filament. Therefore, the molten material will fill the reserve box 310 through the two replenishment channels 350 for unforeseen needs. When the printing material filament is used up, while the staff goes to retrieve it, the movable end of the electric push rod 340 pushes the extrusion plate 330 upward. The extrusion plate 330 then squeezes the molten material, causing this part of the material to return to the upper cavity to make up for the deficiency in the upper cavity and ensure that the printing nozzle 120 can continue printing. After the staff retrieves the printing material filament, the movable end of the electric push rod 340 is controlled to retract, and then the operation continues in the above manner.

[0046] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A 3D printer compensation device, characterized in that, include: A printing mechanism (100) includes a feed box (110) and a print head (120) connected and communicating with the feed box (110); The melting mechanism (200) includes a heat-conducting plate (210) installed inside the feed box (110) and a section (220) of heating wire connected to the bottom of the heat-conducting plate (210); The compensation mechanism (300) includes a backup box (310) fixed to the bottom of the feeding box (110), two sections (320) of electric heating wire wound around the outside of the backup box (310), an extrusion plate (330) attached to the bottom of the inner cavity of the backup box (310), an electric push rod (340) connected between the backup box (310) and the extrusion plate (330), and two feeding channels (350) opened on the heat-conducting plate (210). The two sections (320) of electric heating wire are seamlessly connected to one end of the first section (220) of electric heating wire.

2. The 3D printer compensation device according to claim 1, characterized in that, The top of the feeding box (110) is equipped with two guide plates (400), which are arranged opposite each other and form a cylindrical channel between them. The cylindrical channel is connected to the inside of the feeding box (110).

3. A 3D printer compensation device according to claim 2, characterized in that, The heat-conducting plate (210) has an arc surface (500) on its top, and the arc surface (500) is located at the bottom of the cylindrical channel.

4. A 3D printer compensation device according to claim 1, characterized in that, The heat-conducting plate (210) divides the inside of the feed box (110) into an upper cavity and a lower cavity. The upper cavity is located at the top of the lower cavity. The printing nozzle (120) is connected to the inside of the upper cavity. A section of the heating wire (220) is located inside the lower cavity.

5. A 3D printer compensation device according to claim 4, characterized in that, Two feeding channels (350) are located near the front and rear side walls of the feeding box (110), respectively. The interior of the rear box (310) is connected to the interior of the upper cavity through the two feeding channels (350).

6. A 3D printer compensation device according to claim 1, characterized in that, A first protrusion (600) is connected between the bottom of the heat-conducting plate (210) and the bottom of the inner cavity of the feed box (110), and the first protrusion (600) is located on the outer side of the top of the printing nozzle (120).

7. A 3D printer compensation device according to claim 6, characterized in that, A second protrusion (700) is connected between the bottom of the heat-conducting plate (210) and the bottom of the inner cavity of the feeding box (110). The second protrusion (700) is located on one side of the backup box (310), and a section of the heating wire (220) is located between the first protrusion (600) and the second protrusion (700).

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