CN110789126A

CN110789126A - 3D printing supplies recovery unit

Info

Publication number: CN110789126A
Application number: CN201911037415.5A
Authority: CN
Inventors: 尤其; 郑秉超
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-02-14

Abstract

The invention discloses a 3D printing consumable recovery device, which comprises a support plate, wherein a melting device for melting and transmitting 3D printing waste is arranged on the support plate, the tail end of the melting device is communicated with two transmission pipes, and an extrusion device for continuously and uninterruptedly extruding the melting material is fixed on the support plate and is connected with the two transmission pipes.

Description

3D printing supplies recovery unit

Technical Field

The invention relates to the technical field of secondary utilization of 3D printing consumables, in particular to a 3D printing consumable recycling device.

Background

3D printing (3DP), one of the rapid prototyping technologies, is a technology for constructing an object by using an adhesive material such as powdered metal or plastic and the like and by printing layer by layer on the basis of a digital model file, and is generally implemented by using a digital technical material printer.

In the production process, the consumable recycling equipment carries out secondary melting on the printed waste materials such as PLA, ABS and the like, and extrudes the waste materials into filamentous consumable materials for secondary utilization. The thermoplastic material is mainly based on the characteristic that the thermoplastic material is a polymer composite material, is chemically stable, can be repeatedly softened and hardened under a certain temperature condition, and is a polymer compound side with a linear structure.

The machines that can melt the printing material are large and expensive at present. Basically large machines of material manufacturers. Common enthusiasts cannot recover own waste by using the technology, the principle of the existing small-sized 3D printing consumable recycling equipment is that a waste cavity is heated firstly to be molten and extruded into a printing disc-shaped material, but the self-made small-sized recycling equipment has a small cavity, only a part of waste can be molten and extruded at one time, when more waste is generated, the waste cannot be molten and extruded while feeding (the melting time is influenced by the size of the waste, and the melting time of the larger waste is long), and the existing extrusion generally adopts piston rod reciprocating extrusion, such as a 3D printing consumable recycling device of the existing Chinese patent document CN209063334U and a 3D printing consumable recoverer of CN207859501U, the main methods for extruding the material adopt piston rod extrusion, but the discharge is discontinuous due to the reciprocating motion of the piston rod, so that the cooling time of the extruded material is inconsistent, the solidification degree differs, leads to the material of extruding to split easily, is difficult for receiving the material and becomes the dish, for this reason, we provide a 3D printing consumables recovery unit.

Disclosure of Invention

The invention aims to provide a 3D printing consumable recycling device capable of continuously extruding and discharging materials, and aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a 3D printing consumables recovery unit, includes the backup pad, install the material device that melts that is used for 3D printing waste material melting transmission in the backup pad, and melt material device tail end intercommunication and have two transmission pipes, be fixed with in the backup pad and be used for making the extrusion device that melts the continuous incessant extrusion of material to be connected with two transmission pipes, melt solid-state waste material through melting the material device, and transport the material of melt form to the extrusion device in through the transmission pipe, through extrusion device extrusion.

Preferably, the material melting device comprises a melting chamber and a support frame, the outer side of the top end of the melting chamber is communicated with a feeding funnel, the bottom end of the melting chamber is communicated with two conveying pipes, a heating shell is installed on the outer side of the melting chamber, a heating resistance wire is installed in the heating shell, the outer side of the heating shell is fixed with a support plate through the support frame, a stirring mechanism is installed in the melting chamber, the material is melted to a melting state through the material melting device, and the material is conveyed to the conveying pipes.

Preferably, rabbling mechanism includes agitator motor and puddler, the puddler both ends all rotate with melting chamber both ends inner wall respectively through the bearing and are connected, and the puddler outside is fixed with the spiral page or leaf, the agitator motor installation is fixed in the melting chamber outside, and agitator motor output is fixed with puddler one end, realizes the even transmission to the material through the rabbling mechanism to it is long when controlling it to receive the heating, guarantees that it receives sufficient heating.

Preferably, extrusion device is including extrusion shell and support column, the extrusion shell outside is installed in the backup pad through the support column, and opens at the extrusion shell both ends and have the connector to through connector and two transmission pipe intercommunications, install in the extrusion shell and be used for melting extruded continuous extrusion device, and the fixed cover in the extrusion shell outside has the silk mouth of telling, extrusion shell bottom is opened there is the discharge gate, and extrudes the shell bottom and is connected with the L template through the round pin hub rotation, realizes extruding the melting material through extrusion device.

Preferably, the continuous extrusion device comprises an extrusion motor and a toothed belt, a partition plate is fixed in the extrusion shell, the extrusion shell is divided into two cavities by a partition plate, the two cavities are respectively provided with a screw rod, two ends of the screw rod are respectively and rotatably connected with the top and the bottom of the extrusion shell by bearings, and the outer sides of the two screw rods are respectively sleeved with an extrusion piston in a threaded manner, the top parts of the screw rods are respectively fixed with a connecting gear, and the two connecting gears are mutually meshed, the extrusion motor is installed and fixed at the outer side of the extrusion shell, the output end of the extrusion motor is fixed with two transmission gears, and are respectively fixed with the output end of the extrusion motor and the top of any one connecting gear, the two transmission gears are in transmission connection through a toothed belt, realize right through continuous extrusion device, through dividing into two cavitys with the extrusion shell to realize the continuous extrusion to the melting material.

Preferably, the extrusion shell outside is kept away from extrusion motor one end and is fixed with the adjusting part that is used for controlling two transmission pipe defeated material usefulness, adjusting part includes U template and accommodate motor, the U template is fixed on extrusion shell outer wall, and rotates through the pivot in the U template and be connected with the regulating plate, the equal slip cap in regulating plate both ends has C shell, and C shell inboard all is connected with regulating part, two in the regulating part slides respectively to insert with two transmission pipes, accommodate motor installs on extrusion shell outer wall, and the pivot of accommodate motor output and U template is fixed, rotates through accommodate motor, controls the regulation of two regulating part positions.

Preferably, the regulating part comprises a sealing plate, the outer side of the sealing plate is tightly attached to the inner wall of the transmission pipe, a connecting column is fixed to the outer side of the sealing plate, a mounting plate is fixed to the outer side of the C-shaped shell and is rotatably connected with the outer end of the connecting column through a pin shaft, and the regulating part controls the transmission of the molten materials in the two transmission pipes, so that the materials can be continuously extruded conveniently.

Preferably, install the rolling disc that is used for extruded material to accomodate usefulness in the backup pad, the realization is accomodate into the dish to the material that cools off after extruding.

Compared with the prior art, the invention has the beneficial effects that:

the solid waste is melted by the melting device, and is conveyed into the extrusion device through the conveying pipe after being melted to a molten state, and the molten material flowing into the extrusion shell is continuously extruded and molded by the continuous extrusion device, so that the extruded material is cooled for a consistent time, the solidified state of the extruded material is consistent, the phenomena of fracture and the like are not easy to occur during collection, the collection is convenient, and the quality of the obtained secondary consumable material is better.

Drawings

FIG. 1 is a schematic view of the overall appearance structure of the present invention;

FIG. 2 is a side view, partially in section, schematically illustrating the structure of the present invention;

FIG. 3 is a schematic view of the extrusion apparatus of the present invention;

FIG. 4 is a schematic sectional view showing the internal structure of the extrusion apparatus of the present invention;

FIG. 5 is a schematic view of a partial cross-sectional structure of a transfer pipe according to the present invention;

FIG. 6 is a schematic top view of an extrusion apparatus according to the present invention;

FIG. 7 is an enlarged view taken at A in FIG. 3;

fig. 8 is an enlarged view of fig. 5 at B.

In the figure: 1-a support plate; 2-material melting device; 3-a transfer pipe; 4-an extrusion device; 5-a melting chamber; 6-a support frame; 7-a feed hopper; 8-heating the shell; 9-heating resistance wires; 10-a stirring mechanism; 11-a stirring motor; 12-a stirring rod; 13-helical page; 14-extruding a shell; 15-a support column; 16-connecting port; 17-a continuous extrusion device; 18-a spinning nozzle; 19-a discharge hole; 20-L type board; 21-an extrusion motor; 22-toothed belts; 23-a divider plate; 24-a screw rod; 25-extruding the piston; 26-connecting gear; 27-a transmission gear; 28-a regulating component; 29-U-shaped plate; 30-adjusting plate; 31-C shell; 32-an adjustment member; 33-adjusting the motor; 34-a sealing plate; 35-connecting column; 36-a mounting plate; 37-rotating disk.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, a 3D printing consumable recycling device in the drawings includes a supporting plate 1, a material melting device 2 for melting and conveying 3D printing waste is mounted on the supporting plate 1, and two conveying pipes 3 are connected to the tail end of the material melting device 2, the material melting device 2 mainly melts the waste into a molten state, and the heating and conveying manner may be replaced by other structures capable of realizing heating and conveying;

an extrusion device 4 for continuously extruding the molten material is fixed on the support plate 1 and connected with the two transmission pipes 3, and the continuous and uninterrupted extrusion of the material is realized through the extrusion device 4;

the melting device 2 comprises a melting chamber 5 and a support frame 6, the outer side of the top end of the melting chamber 5 is communicated with a feeding funnel 7, the bottom end of the melting chamber is communicated with two transmission pipes 3, the transmission pipes 3 can be made of heat-resistant plastic flexible metal pipes, the outer side of the melting chamber 5 is provided with a heating shell 8, a heating resistance wire 9 is arranged in the heating shell 8, the heating mode can be replaced by other devices, the outer side of the heating shell 8 is fixed with the support plate 1 through the support frame 6, the heating shell 8 and the support frame 6 are screwed down through bolts, the angle of the melting chamber 5 can be adjusted by unscrewing the bolts, and the stirring mechanism 10 is arranged in the melting chamber 5;

rabbling mechanism 10 includes agitator motor 11 and puddler 12, rotates through agitator motor 11, drives puddler 12 fixed with it output end and rotates to make 12 outside fixed spiral pages 13 of puddler rotate, realize the even transport to the material, make it receive the heating time length unanimous, avoid appearing not the molten state appearance.

The extrusion device 4 comprises an extrusion shell 14 and a support column 15, the outer side of the extrusion shell 14 is mounted on the support plate 1 through the support column 15, the two ends of the extrusion shell 14 are provided with connectors 16 and are communicated with the two transmission pipes 3 through the connectors 16, a continuous extrusion device 17 for melt extrusion is mounted in the extrusion shell 14, a spinning nozzle 18 is fixedly sleeved on the outer side of the extrusion shell 14, the bottom of the extrusion shell 14 is provided with a discharge hole 19, and the bottom of the extrusion shell 14 is rotatably connected with an L-shaped plate 20 through a pin shaft;

the continuous extrusion device 17 comprises an extrusion motor 21 and a toothed belt 22, a partition plate 23 is fixed in the extrusion shell 14, the extrusion shell 14 is divided into two cavities through the partition plate 23, lead screws 24 are arranged in the two cavities, two ends of each lead screw 24 are respectively rotatably connected with the top and the bottom of the extrusion shell 14 through bearings, extrusion pistons 25 are sleeved on the outer sides of the two lead screws 24 in a threaded manner, one of the two extrusion pistons 25 is positioned at the top end of each lead screw 24 and the other is positioned at the bottom end of each lead screw 24 when in an initial position, a connecting gear 26 is fixed on the top of each lead screw 24, the two connecting gears 26 are mutually meshed, the extrusion motor 21 is fixedly installed on the outer side of the extrusion shell 14, a transmission gear 27 is fixed on the output end of the extrusion motor 21, the two transmission gears 27 are respectively fixed with the output end of the extrusion motor 21 and the top of any one connecting gear 26, and the, the rotation of the transmission gear 27 is realized through the rotation of the extrusion motor 21, so that the connection gear 26 is driven to rotate, the two screw rods 24 are driven to move reversely, the two extrusion pistons 25 move reversely, one extrusion piston 25 is in a reset state when being extruded, and the continuous extrusion is realized through the circulation.

Meanwhile, an adjusting component 28 for controlling the material conveying of the two conveying pipes 3 is fixed at one end of the outer side of the extrusion shell 14, which is far away from the extrusion motor 21, the adjusting assembly 28 comprises a U-shaped plate 29 and an adjusting motor 33, the U-shaped plate 29 is fixed on the outer wall of the extrusion shell 14, and an adjusting plate 30 is rotatably connected in the U-shaped plate 29 through a rotating shaft, both ends of the adjusting plate 30 are slidably sleeved with C-shaped shells 31, and the inner sides of the C-shaped shells 31 are connected with adjusting pieces 32, the two adjusting pieces 32 are respectively inserted into the two transmission pipes 3 in a sliding way, the adjusting motor 33 is arranged on the outer wall of the extrusion shell 14, the output end of the adjusting motor 33 is fixed with the rotating shaft in the U-shaped plate 29, the adjusting motor 33 rotates to drive the adjusting plate 30 to rotate, so as to adjust the positions of the two adjusting pieces 32, thereby controlling the opening and closing of the connecting ports 16 in the two conveying pipes 3 and facilitating the extrusion of the molten materials;

the adjusting part 32 comprises a sealing plate 34, the outer side of the sealing plate 34 is tightly attached to the inner wall of the transmission pipe 3, a connecting column 35 is fixed on the outer side of the sealing plate 34, a mounting plate 36 is fixed on the outer side of the C-shaped shell 31, the outer end of the connecting column 35 is rotatably connected with the outer end of the C-shaped shell through a pin shaft, the sealing plate 34 extends into the transmission pipe 3, materials cannot be transmitted to the extrusion shell 14 from the connecting port 16, and therefore the transmission pipe 3 is closed.

Meanwhile, a rotating disc 37 used for accommodating extruded materials and an air cooling mechanism used for cooling the extruded materials are installed on the supporting plate 1, the air cooling mechanism can adopt external fans and other equipment, and the materials are accommodated into a disc through the rotating disc 37.

In the scheme, when 3D printing waste is recycled, large waste is firstly smashed and thrown into a feeding funnel 7, meanwhile, a stirring motor 11 rotates to enable a spiral blade 13 to rotate to drive material transmission, a heating resistance wire 9 is utilized to raise the temperature to enable the temperature in a melting cavity 5 to reach about 200 ℃, the material is melted from solid particles to a melting state and is conveyed into an extruding shell 14 through two conveying pipes 3, at the moment, a left extruding piston 25 of the extruding shell 14 is positioned at the lowest end of a screw rod 24, a right extruding piston 25 is positioned at the topmost end of the screw rod 24, an adjusting piece 32 in the left conveying pipe 3 extends into the extruding shell to enable a left end connecting port 16 to be closed, a right end connecting port 16 is in an open state, the melting material quickly fills a cavity at the right end of the extruding shell 14 through the right end connecting port 16, then, the extruding motor 21 rotates, and the material is conveyed through a toothed belt 22 and in a gear meshing mode, the two screw rods 24 are driven to rotate, at the moment, the extrusion piston 25 at the right end moves downwards to push the materials inside to move towards the spinning nozzle 18, the L-shaped plate 20 is pushed by the materials to rotate towards the left end to block the left end of the discharge hole 19, so that the materials in the cavity at the right end flow out, and are discharged through the spinning nozzle 18, after the materials at the right end are extruded, the extrusion piston 25 at the right end is positioned at the lowest end, the extrusion piston 25 at the left end moves to the topmost end of the screw rods 24, similarly, the adjusting piece 32 in the transmission pipe 3 at the left end exits, the adjusting piece 32 in the transmission pipe 3 at the right end extends into the connection hole 16 to close the connection port 16, so that the materials are prevented from flowing out, then the extrusion motor 21 rotates reversely, so that the extrusion piston 25 at the left end moves downwards to start the extrusion of the materials, the materials push the L-shaped plate 20 to rotate rightwards to block the discharge, avoid extrusion to interrupt, lead to the material to be difficult to collect.

In the scheme, the model of the stirring motor 11 is preferably Y80M2-2, the model of the extrusion motor 21 is preferably Y80M1-2, and the model of the adjusting motor 33 is preferably Y100L-2.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims

1. The utility model provides a 3D printing consumables recovery unit, includes backup pad (1), its characterized in that: the melting device (2) for 3D printing waste melting and conveying is mounted on the supporting plate (1), the tail end of the melting device (2) is communicated with two conveying pipes (3), and an extruding device (4) for enabling the melting material to be extruded continuously is fixed on the supporting plate (1) and is connected with the two conveying pipes (3).

2. The 3D printing consumables recycling device according to claim 1, characterized in that: melt material device (2) including melting chamber (5) and support frame (6), melting chamber (5) top outside intercommunication has feed hopper (7), and bottom and two transmission pipes (3) intercommunication, heating shell (8) are installed in melting chamber (5) outside, and install heating resistor silk (9) in heating shell (8), it is fixed with backup pad (1) to pass through support frame (6) in heating shell (8) outside, and installs rabbling mechanism (10) in melting chamber (5).

3. The 3D printing consumables recycling device according to claim 2, characterized in that: rabbling mechanism (10) are including agitator motor (11) and puddler (12), puddler (12) both ends all rotate with melting chamber (5) both ends inner wall through the bearing respectively and are connected, and puddler (12) outside is fixed with spiral page or leaf (13), agitator motor (11) installation is fixed in the melting chamber (5) outside, and agitator motor (11) output is fixed with puddler (12) one end.

4. The 3D printing consumables recycling device according to claim 1, characterized in that: extrusion device (4) are including extruding shell (14) and support column (15), install on backup pad (1) through support column (15) in extruding shell (14) outside, and extrude shell (14) both ends and open and have connector (16) to communicate with two transmission pipes (3) through connector (16), install in extruding shell (14) and be used for melting extruded continuous extrusion device (17), and extrude shell (14) outside fixed cover have silk mouth (18) of telling, it has discharge gate (19) to extrude shell (14) bottom to open, and extrudees shell (14) bottom and is connected with L template (20) through round pin axle rotation.

5. The 3D printing consumables recycling device according to claim 4, wherein: the continuous extrusion device (17) comprises an extrusion motor (21) and a toothed belt (22), a partition plate (23) is fixed in the extrusion shell (14), the extrusion shell (14) is divided into two cavities through the partition plate (23), screw rods (24) are arranged in the two cavities, two ends of each screw rod (24) are rotatably connected with the top and the bottom of the extrusion shell (14) through bearings respectively, extrusion pistons (25) are sleeved on the outer sides of the two screw rods (24) in a threaded manner, connecting gears (26) are fixed on the tops of the screw rods (24), the two connecting gears (26) are meshed with each other, the extrusion motor (21) is fixedly installed on the outer side of the extrusion shell (14), a transmission gear (27) is fixed on the output end of the extrusion motor (21), the transmission gear (27) is provided with two transmission gears, and the output end of the extrusion motor (21) and the top of any one of the connecting gears (26) are fixed respectively, the two transmission gears (27) are in transmission connection through a toothed belt (22).

6. The 3D printing consumables recycling device according to claim 4, wherein: extrusion shell (14) outside is kept away from extrusion motor (21) one end and is fixed with adjusting part (28) that are used for controlling two transmission pipe (3) defeated material usefulness, adjusting part (28) include U template (29) and accommodate motor (33), U template (29) are fixed on extrusion shell (14) outer wall, and rotate through the pivot in U template (29) and are connected with regulating plate (30), the equal sliding sleeve in regulating plate (30) both ends has C shell (31), and C shell (31) inboard all is connected with regulating part (32), two regulating part (32) slide respectively and insert with two transmission pipe (3) in, accommodate motor (33) are installed on extrusion shell (14) outer wall, and the pivot in accommodate motor (33) output and U template (29) is fixed.

7. The 3D printing consumables recycling device according to claim 6, wherein: adjusting part (32) include closing plate (34), the closing plate (34) outside is closely laminated with transmission pipe (3) inner wall, and closing plate (34) outside is fixed with spliced pole (35), C type shell (31) outside is fixed with mounting panel (36), and rotates with spliced pole (35) outer end through the round pin axle and be connected.

8. The 3D printing consumables recycling device according to claim 1, characterized in that: a rotating disc (37) for containing the extruded materials is mounted on the supporting plate (1).