Self-cleaning anti-blocking device for fused deposition 3D printer nozzle

Abstract

The utility model discloses a fused deposition 3D printer nozzle self-cleaning anti-blocking device which comprises a shell, connecting rods are arranged on the two sides of the interior of the shell, a first fixing base is arranged at the tail end of one connecting rod, a second fixing base is arranged at the tail end of the other connecting rod, an abutting opening is formed in the top of the first fixing base, and an abutting opening is formed in the top of the second fixing base. A sealing gasket is arranged on the inner wall of the abutting opening, and the bottom of the first fixing base is in threaded connection with a collecting bottle. The utility model relates to the technical field of 3D printers, and solves the problems that in the prior art, in the use process of a fused deposition 3D printer, a nozzle is easily blocked due to material residues and needs to be frequently replaced and cleaned, the printing efficiency and the printing quality are influenced, and the equipment maintenance cost and the operation complexity are increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to 3D printer technical field, concretely is a kind of fused deposition 3D printer nozzle self-cleaning anti-blocking device. BACKGROUND

[0002] In 3D printing technology, fused deposition (FDM) is a widely used printing method, by heating plastic filament to molten state, then it is extruded and stacked layer by layer on the printing platform, form the required three-dimensional object, the outstanding advantage of fused deposition technology is in its layer-by-layer accumulation forming principle, so that the printed object has good stability and strength in structure, in prior art, nozzle is prone to blockage due to material residue during use of fused deposition 3D printer, it needs to be replaced and cleaned frequently, affect printing efficiency and printing quality, and increase equipment maintenance cost and operation complexity. SUMMARY

[0003] In view of the deficiencies of the prior art, the utility model provides a kind of fused deposition 3D printer nozzle self-cleaning anti-blocking device, solve the problem in prior art, nozzle is prone to blockage due to material residue during use of fused deposition 3D printer, it needs to be replaced and cleaned frequently, affect printing efficiency and printing quality, and increase equipment maintenance cost and operation complexity.

[0004] To achieve the above object, the utility model is realized by the following technical scheme: a kind of fused deposition 3D printer nozzle self-cleaning anti-blocking device, including shell, the inside both sides of the shell are provided with connecting rod, the end of one connecting rod is provided with first fixed seat, the end of another connecting rod is provided with second fixed seat, the top of first fixed seat is provided with resistance tight mouth, the inner wall of resistance tight mouth is provided with sealing gasket, the bottom of first fixed seat is connected with collection bottle by screw thread, resistance tight mouth is communicated with collection bottle, the inside of connecting rod and first fixed seat is provided with gas guide channel, gas guide channel is communicated with collection bottle, vacuum pump is installed in the inside of shell, vacuum pump is communicated with gas guide channel, the bottom of second fixed seat is installed with servo motor, the top of second fixed seat is rotatably connected with rotating seat, servo motor is connected with rotating seat transmission, the top of rotating seat is installed with nozzle cleaning needle.

[0005] Preferably, the inner wall of the shell is provided with a chute up and down, the chute is provided with a connecting rod, the inside of the chute is installed with an electric push rod away from the connecting rod, the inner wall of the chute is gap fitted with a moving seat, the moving seat is fixedly connected with the output end of the electric push rod, the inner wall of the moving seat is rotatably connected with a support rod, the end of the support rod away from the moving seat is rotatably connected with the connecting rod.

[0006] Preferably, the first fixing seat is located at the bottom of the abutting opening and is provided with an extension pipe, the inner wall of the first fixing seat is provided with a limiting guide, the outer wall of the extension pipe is matched with a filter screen, and the filter screen is matched with the collecting bottle and the limiting guide respectively.

[0007] Preferably, the inner wall of the shell is provided with limiting clamps on both sides, and the outer wall of the connecting rod is provided with limiting grooves, and the limiting clamps are matched with the limiting grooves.

[0008] Preferably, the top of the rotating seat is provided with a chuck rod, the outer wall of the chuck rod is threadedly connected with a fixing nut, and the nozzle cleaning needle is matched with the chuck rod.

[0009] The utility model provides a kind of nozzle self-cleaning anti-blocking device of fused deposition 3D printer.It has the following beneficial effects:The nozzle self-cleaning anti-blocking device of fused deposition 3D printer, through the cooperation between shell, connecting rod, first fixing seat, second fixing seat, abutting opening, sealing gasket, collecting bottle, gas guide channel, vacuum pump, servo motor, rotating seat and nozzle cleaning needle, after 3D printer control system starts self-cleaning mode, by making rotating nozzle cleaning needle insert inside nozzle, use the tiny burr on the surface of nozzle cleaning needle, preliminary scraping cleaning is carried out to the residual material attached to the inner wall of nozzle, then nozzle and abutting opening are abutted, and the cleaning material and gas remaining in the inside of nozzle are sucked into collecting bottle and collected, residual material of printer nozzle is automatically cleaned, without disassembling and replacing nozzle, improve printing efficiency and printing quality, can reduce the maintenance cost of equipment and the complexity of nozzle cleaning, which helps to improve the cleaning efficiency and convenience of 3D printer nozzle.

[0010] Through the cooperation between shell, connecting rod, sliding slot, electric push rod, moving seat and support rod, by controlling electric push rod, moving seat moves in sliding slot, connecting rod is driven to rotate by support rod, the extension of connecting rod from shell to 3D printer interior or the retraction into shell interior is realized, and then printer control system expands and retracts nozzle cleaning device according to setting program, without manual operation, which helps to improve cleaning efficiency and automation degree. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the appearance schematic view of the utility model;

[0012] Figure 2 It is the structure schematic view of connecting rod, abutting opening and collecting bottle in the utility model;

[0013] Figure 3 It is Figure 1 It is the local enlarged view of area A in the utility model;

[0014] Figure 4 It isFigure 1 A local enlarged view of the middle B region;

[0015] Figure 5 For Figure 2 A local enlarged view of the middle C region.

[0016] In the figure: 1, shell; 2, connecting rod; 3, first fixed seat; 4, second fixed seat; 5, abutting mouth; 6, sealing gasket; 7, collection bottle; 8, gas guide channel; 9, vacuum pump; 10, servo motor; 11, rotating seat; 12, nozzle cleaning needle; 13, sliding groove; 14, electric push rod; 15, moving seat; 16, support rod; 17, extension pipe; 18, limiting edge; 19, filter screen; 20, limiting clamp; 21, limiting groove; 22, chuck rod; 23, fixed nut. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0018] In the prior art, the nozzle of the fused deposition 3D printer is prone to blockage due to material residues during use, and needs to be frequently replaced and cleaned, which affects the printing efficiency and printing quality, and increases the equipment maintenance cost and operation complexity.

[0019] Therefore, the utility model provides a kind of fused deposition 3D printer nozzle self-cleaning anti-blocking device, through the cooperation between shell, connecting rod, first fixed seat, second fixed seat, abutting mouth, sealing gasket, collection bottle, gas guide channel, vacuum pump, servo motor, rotating seat and nozzle cleaning needle, after 3D printer control system starts self-cleaning mode, by making the rotating nozzle cleaning needle insert inside nozzle, utilize the tiny burr on the surface of nozzle cleaning needle, preliminary scraping cleaning is carried out to the residual material attached to the inner wall of nozzle, then nozzle and abutting mouth are abutted, and the cleaning material and gas remaining in the nozzle are sucked into collection bottle for collection, to realize the automatic cleaning of the residual material of printer nozzle, without disassembling and replacing nozzle, improve printing efficiency and printing quality, reduce the maintenance cost of equipment and the complexity of nozzle cleaning, improve the cleaning efficiency and convenience of 3D printer nozzle.

[0020] Through the person skilled in the art, all electrical components in the case are connected with their adapted power supply through wires, and appropriate controllers and encoders should be selected according to the actual situation to meet the control requirements. The specific connection and control sequence should be referred to the working principle below. The electrical components are connected in the order of working principle, and the detailed connection means is the commonly known technology in the art. The working principle and process are mainly introduced below, and the electrical control is not described.

[0021] By Figures 1-5 It can be known that the nozzle self-cleaning and anti-blocking device of a fused deposition 3D printer comprises an outer shell 1, connecting rods 2 are arranged on both sides of the inner part of the outer shell 1, a first fixing seat 3 is arranged at the end of one connecting rod 2, a second fixing seat 4 is arranged at the end of the other connecting rod 2, a tight-fitting port 5 is arranged on the top of the first fixing seat 3, a sealing gasket 6 is arranged on the inner wall of the tight-fitting port 5, a collecting bottle 7 is threadedly connected to the bottom of the first fixing seat 3, the tight-fitting port 5 is communicated with the collecting bottle 7, a gas guide channel 8 is arranged in the inner part of the connecting rod 2 and the first fixing seat 3, the gas guide channel 8 is communicated with the collecting bottle 7, a vacuum pump 9 is installed in the inner part of the outer shell 1, the vacuum pump 9 is communicated with the gas guide channel 8, a servo motor 10 is installed at the bottom of the second fixing seat 4, a rotating seat 11 is rotatably connected to the top of the second fixing seat 4, the servo motor 10 is drivingly connected with the rotating seat 11, and a nozzle cleaning needle 12 is installed on the top of the rotating seat 11.

[0022] In the implementation process, it is worth pointing out that the shell 1 is arranged on one side of the fused deposition 3D printer, and through the cooperation between the shell 1, the connecting rod 2, the second fixing seat 4, the servo motor 10, the rotating seat 11 and the nozzle cleaning needle 12, when the nozzle of the printer needs to be cleaned, the connecting rod 2 is extended from the shell 1 to the inside of the 3D printer, the printer automatically controls the printer nozzle, the nozzle is aligned with the nozzle cleaning needle 12, the servo motor 10 is started, the rotating seat 11 and the nozzle cleaning needle 12 are driven to rotate, the printer nozzle is moved downward, the nozzle cleaning needle 12 is inserted into the nozzle, the surface of the nozzle cleaning needle 12 is provided with small burrs, the residual material attached to the inner wall of the nozzle is scraped and cleaned during the rotation, through the cooperation between the shell 1, the connecting rod 2, the first fixing seat 3, the abutting port 5, the sealing pad 6, the collection bottle 7, the gas guide channel 8 and the vacuum pump 9, after the nozzle cleaning needle 12 completes the cleaning of the nozzle residues, the printer automatically controls the printer nozzle, the nozzle is abutted with the abutting port 5, the sealing pad 6 is kept to seal the nozzle, the vacuum pump 9 is started, the vacuum pump 9 is connected with the gas guide channel 8, the inside of the collection bottle 7 is vacuumized, under the negative pressure state, the cleaning materials and gas remaining in the nozzle are sucked into the collection bottle 7 for collection, the cleaning effect of the nozzle is further improved, through the cooperation between the shell 1, the connecting rod 2, the first fixing seat 3, the second fixing seat 4, the abutting port 5, the sealing pad 6, the collection bottle 7, the gas guide channel 8, the vacuum pump 9, the servo motor 10, the rotating seat 11 and the nozzle cleaning needle 12, after the 3D printer control system starts the self-cleaning mode, the rotating nozzle cleaning needle 12 is inserted into the nozzle, the small burrs on the surface of the nozzle cleaning needle 12 are used to preliminarily scrape and clean the residual material attached to the inner wall of the nozzle, the nozzle is abutted with the abutting port 5, the cleaning materials and gas remaining in the nozzle are sucked into the collection bottle 7 for collection, the automatic cleaning of the nozzle residues of the printer is realized, the nozzle does not need to be disassembled and replaced, the printing efficiency and printing quality are improved, the maintenance cost of the equipment and the complexity of the nozzle cleaning are reduced, the cleaning efficiency and convenience of the nozzle of the 3D printer are improved, wherein the specific type of the vacuum pump 9 and the servo motor 10 is not limited, and the use requirement is met;

[0023] Further, the inner wall of the shell 1 is provided with a sliding groove 13 upward and downward, the sliding groove 13 is correspondingly arranged with the connecting rod 2, the inside of the sliding groove 13 is provided with an electric push rod 14 away from the connecting rod 2, the inner wall of the sliding groove 13 is gap-fitted with a moving seat 15, the moving seat 15 is fixedly connected with the output end of the electric push rod 14, the inner wall of the moving seat 15 is rotatably connected with a supporting rod 16, one end of the supporting rod 16 away from the moving seat 15 is rotatably connected with the connecting rod 2;

[0024] In the specific implementation process, it is particularly worth pointing out that through the cooperation between the shell 1, the connecting rod 2, the sliding groove 13, the electric push rod 14, the moving seat 15 and the supporting rod 16, the moving seat 15 is moved in the sliding groove 13 by controlling the electric push rod 14, the connecting rod 2 is driven to rotate and supported by the supporting rod 16, the extension of the connecting rod 2 from the shell 1 to the inside of the 3D printer or the retraction into the inside of the shell 1 is realized, and then the nozzle cleaning device is unfolded and retracted according to the setting program by the printer control system, without manual operation, the cleaning efficiency and the automation degree are improved, wherein the specific model of the electric push rod 14 is not limited, and it can meet the use requirement;

[0025] Further, the first fixed seat 3 is provided with an extension pipe 17 at the bottom of the abutting port 5, the inner wall of the first fixed seat 3 is provided with a limiting guide 18, the outer wall of the extension pipe 17 is connected with a filter screen 19 in cooperation, and the filter screen 19 is connected with the collecting bottle 7 and the limiting guide 18 in cooperation respectively;

[0026] In the specific implementation process, it is particularly worth pointing out that through the cooperation between the first fixed seat 3, the abutting port 5, the collecting bottle 7, the gas guide channel 8, the extension pipe 17, the limiting guide 18 and the filter screen 19, after the collecting bottle 7 is screwed into the bottom of the first fixed seat 3, the extension pipe 17 is inserted into the inside of the collecting bottle 7, the bottle opening of the collecting bottle 7 and the limiting guide 18 form abutting fixation to the filter screen 19, the debris generated during nozzle cleaning directly enters the inside of the collecting bottle 7 through the extension pipe 17, and the debris generated during nozzle cleaning is filtered through the filter screen 19, so as to prevent the debris from blocking the gas guide channel 8 and affecting the air pumping effect of the vacuum pump 9;

[0027] Further, the inner wall of the shell 1 is provided with a limiting clamp 20 on both sides, and the outer wall of the connecting rod 2 is provided with a limiting groove 21, and the limiting clamp 20 is connected with the limiting groove 21 in cooperation;

[0028] In the specific implementation process, it is particularly worth pointing out that through the cooperation between the shell 1, the connecting rod 2, the limiting clamp 20 and the limiting groove 21, after the connecting rod 2 is unfolded, it is tightly attached to the inner wall of the shell 1, the limiting clamp 20 is clamped into the limiting groove 21, the connecting rod 2 is limited, the stability of the connecting rod 2 after unfolding is improved, and shaking during nozzle cleaning is avoided;

[0029] Further, the top of the rotating seat 11 is provided with a chuck rod 22, the outer wall of the chuck rod 22 is threadedly connected with a fixed nut 23, and the nozzle cleaning needle 12 is connected with the chuck rod 22 in cooperation;

[0030] In the specific implementation process, it is particularly worth pointing out that through the cooperation between the rotating seat 11, the nozzle cleaning needle 12, the chuck rod 22 and the fixing nut 23, by inserting the nozzle cleaning needle 12 into the fixing hole of the chuck rod 22 and tightening with the fixing nut 23, the nozzle cleaning needle 12 is clamped and fixed inside the chuck rod 22, improving the convenience of installing or replacing the nozzle cleaning needle 12.

[0031] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A nozzle self-cleaning anti-blocking device for a fused deposition 3D printer, comprising a housing (1), characterized in that: The both sides of the inside of the shell (1) are provided with connecting rods (2), the end of one connecting rod (2) is provided with a first fixing seat (3), the end of the other connecting rod (2) is provided with a second fixing seat (4), the top of the first fixing seat (3) is provided with a abutting port (5), the inner wall of the abutting port (5) is provided with a sealing gasket (6), the bottom of the first fixing seat (3) is threadedly connected with a collecting bottle (7), the abutting port (5) is communicated with the collecting bottle (7), the inside of the connecting rod (2) and the first fixing seat (3) is provided with a gas guide channel (8), the gas guide channel (8) is communicated with the collecting bottle (7), the inside of the shell (1) is mounted with a vacuum pump (9), the vacuum pump (9) is communicated with the gas guide channel (8), the bottom of the second fixing seat (4) is mounted with a servo motor (10), the top of the second fixing seat (4) is rotatably connected with a rotating seat (11), the servo motor (10) is drivingly connected with the rotating seat (11), the top of the rotating seat (11) is mounted with a nozzle cleaning needle (12).

2. A self-cleaning anti-jamming device for a nozzle of a fused deposition 3D printer according to claim 1, characterized in that: The inner wall of the shell (1) is provided with a sliding groove (13) upward and downward, the sliding groove (13) is correspondingly provided with the connecting rod (2), the inside of the sliding groove (13) is mounted with an electric push rod (14) away from the connecting rod (2), the inner wall of the sliding groove (13) is clearance fitted with a moving seat (15), the moving seat (15) is fixedly connected with the output end of the electric push rod (14), the inner wall of the moving seat (15) is rotatably connected with a supporting rod (16), one end of the supporting rod (16) away from the moving seat (15) is rotatably connected with the connecting rod (2).

3. A self-cleaning anti-jamming device for a nozzle of a fused deposition 3D printer according to claim 1, characterized in that: The bottom of the first fixing seat (3) located in the abutting port (5) is provided with an extension pipe (17), the inner wall of the first fixing seat (3) is provided with a limiting guide (18), the outer wall of the extension pipe (17) is fitted with a filter screen (19), the filter screen (19) is respectively fitted with the collecting bottle (7) and the limiting guide (18).

4. A self-cleaning anti-jamming device for a nozzle of a fused deposition 3D printer according to claim 1, characterized in that: The inner wall of the shell (1) is provided with a limiting clamp (20) on both sides, the outer wall of the connecting rod (2) is provided with a limiting groove (21), the limiting clamp (20) is fitted with the limiting groove (21).

5. A self-cleaning anti-jamming device for a nozzle of a fused deposition 3D printer according to claim 1, characterized in that: The top of the rotating seat (11) is provided with a chuck rod (22), the outer wall of the chuck rod (22) is threadedly connected with a fixing nut (23), the nozzle cleaning needle (12) is fitted with the chuck rod (22).

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