CN212653875U

CN212653875U - Granule feeding mechanism that material device was used is spouted to 3D printer

Info

Publication number: CN212653875U
Application number: CN202021193654.8U
Authority: CN
Inventors: 肖国栋
Original assignee: Quanzhou Yuhuan Mould Co ltd
Current assignee: Quanzhou Yuhuan Mould Co ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-03-05
Anticipated expiration: 2030-06-24

Abstract

The utility model discloses a granular material feeding mechanism for a 3D printer material spraying device, a limit chute is obliquely arranged at the side end of the inner side of a material homogenizing box, a connecting sieve plate is embedded in the inner side of the limit chute in a sliding way, a fixedly connected material homogenizing screen is embedded in the middle of the inner side of the connecting sieve plate, a preheating cylinder is sleeved at the position, which is positioned at the bottom of the material homogenizing box, of the outer side of a material feeding pipe, and electric heating pipes are equidistantly arranged at the bottom of the inner side of the heating chamber, the utility model can screen the granular material by the material homogenizing box, a feeding hopper, the limit chute, the connecting sieve plate, the material homogenizing screen and a handle before the granular material enters the material feeding cylinder, so as to filter out large and large granular particles doped in the material, further ensure that the granular size of the material can be kept uniform after the material enters the material feeding cylinder, meanwhile, the molding quality of subsequent products is ensured.

Description

Granule feeding mechanism that material device was used is spouted to 3D printer

Technical Field

The utility model relates to a 3D printer technical field specifically is granule material feed mechanism that 3D printer spouts material device to use.

Background

3D prints and is one of quick forming technology, extrudes through the shower nozzle that has a fine nozzle and begins the solidification after the temperature is less than the solidification temperature, piles up layer by layer through plastic material and finally forms the finished product, constructs the technique of object through the mode of printing layer by layer, and the material mechanism that spouts of 3D printer needs to use feed mechanism to carry out the material loading usually, as chinese patent discloses a quick 3D prints and spouts material mechanism, and the application number is: 201510182773.0, the patent adopts an extrusion screw to feed, the pressure in the charging barrel is controlled by the rotation speed of the extrusion screw to realize the high-speed material spraying of the nozzle, meanwhile, in the printing process, when the screw stops rotating, a negative pressure interval is generated in the middle of the charging barrel at the moment that the screw stops rotating, the material at the nozzle of the nozzle cannot overflow, and the phenomena of wire drawing and material dripping are not generated;

spout among the prior art material device because some be graininess material in the practical application process, consequently, it is just unable to be suitable for to lead to comparing the file, secondly, when carrying out the material loading, owing to lack the function of preheating the material, and then make the material just can heat after getting into the feed cylinder, not only prolonged the time of material heating, lead to the material to appear heating incomplete phenomenon simultaneously easily, and current material loading attachment based on graininess is owing to lack the function of screening the material, lead to because the volume of graininess material is irregular, make the material get into the feed cylinder after, the phenomenon of overheating can appear in the material of little volume, and the phenomenon of heating incomplete can appear in the material of big volume, with this follow-up spun quality of material has been reduced, further cause the influence to the finished product effect of 3D printing.

SUMMERY OF THE UTILITY MODEL

The utility model provides a granular material feeding mechanism for a 3D printer material spraying device, which can effectively solve the problems that the material spraying device in the prior art is provided in the background technology, because granular materials are adopted in the actual application process, the comparison file cannot be suitable, secondly, when the materials are fed, the materials can be heated only after entering a charging barrel due to the lack of the function of preheating the materials, the time for heating the materials is prolonged, meanwhile, the phenomenon of incomplete heating of the materials is easy to occur, and the existing granular material feeding device based on the granular materials has the problem that the volume of the granular materials is irregular due to the lack of the function of screening the materials, so that the phenomenon of excessive heating of the materials with small volume can occur after the materials enter the charging barrel, and the phenomenon of incomplete heating of the materials with large volume can occur, therefore, the quality of subsequent ejection of materials is reduced, and the effect of a finished product printed by 3D is further influenced.

In order to achieve the above object, the utility model provides a following technical scheme: the particle feeding mechanism for the 3D printer material spraying device comprises a material cylinder, wherein a nozzle is sleeved on the outer side of one end of the material cylinder, a heating cylinder is sleeved on the edge part of the outer side of the material cylinder, the middle part of the inner side of the material cylinder is rotatably connected with a rotating shaft, a material conveying auger is fixedly installed at the position, which is positioned in the material cylinder, on the outer side of the rotating shaft, a material feeding pipe is connected at the top part of one side of the material cylinder in a penetrating manner, a material homogenizing box is fixedly installed at the top end of the material homogenizing box, a limiting sliding chute is obliquely formed in the edge end of the inner side of the material homogenizing box, a connecting sieve plate is embedded and slidably connected;

the preheating device is characterized in that a preheating barrel is sleeved at the position, located at the bottom of the homogenizing box, of the outer side of the feeding pipe, the top of the preheating barrel is connected with a top cover in a matching mode, a heating cavity is formed in the preheating barrel, electric heating pipes are installed at the bottom of the inner side of the heating cavity in an equidistant mode, and a connecting ring seat is fixedly installed at the top end of each electric heating pipe.

Preferably, a material guide groove is formed in the connecting position of the bottom of the inner side of the material homogenizing box and the feeding pipe, and a feeding hopper is fixedly installed at the end of the top of the material homogenizing box.

Preferably, the connection sieve plate edge is fixedly bonded with a sealing rubber sleeve at the position inside the limiting chute, and a handle is fixedly mounted at one side edge of the connection sieve plate.

Preferably, the pressure relief hole is formed in the top cover, and the input end of the electric heating pipe is electrically connected with the output end of the external power supply.

Preferably, a discharge port is formed in the position corresponding to the bottom of the connecting sieve plate on one side edge of the homogenizing box, connecting seats are symmetrically arranged at the position corresponding to the bottom of the discharge port at the edge end of the homogenizing box, limiting insertion holes are formed in the connecting seats, a collecting box is arranged at the position corresponding to the bottom of the discharge port on one side of the bottom of the homogenizing box, L-shaped fixed connecting rods are fixedly connected to the positions corresponding to the connecting seats at the edge end of the collecting box, and the L-shaped fixed connecting rods are embedded in the limiting insertion holes.

Preferably, the collecting box is fixedly connected with the connecting seat in an inserting manner through an L-shaped fixed connecting rod at the edge end of the collecting box, and an anti-overflow baffle is fixedly mounted at the edge part of the top end of the collecting box.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of being scientific and reasonable in structure, convenience safe in utilization:

1. through even workbin, feeder hopper, spacing spout, connection sieve, refining screen cloth and handle can come to sieve the material before granular material gets into the feed cylinder to this filters out the bulky granule of adulteration in the material, and then makes the material can keep the granularity size even after getting into the feed cylinder, and then improves the heating effect of follow-up material, prevents the material granularity inequality, causes the phenomenon that the heating effect reduces, has guaranteed the fashioned quality of follow-up product simultaneously.

2. Through preheating section of thick bamboo, top cap, heating cavity, electric heating pipe and connecting ring seat can come to carry out preheating treatment to the material before granular material gets into the feed cylinder, and then make the material just can carry certain heat before getting into the feed cylinder inside to make things convenient for its follow-up can be quick even heating more in the feed cylinder, and then shorten the heat time of material, improve the heating effect of material.

3. The quick discharge and the collection of the inconsistent material of selecting in the refining box are conveniently carried out through discharge gate, collecting box and anti-overflow baffle, carry out quick connection and dismantlement between collecting box and the refining box through connecting seat, spacing jack and the fixed connecting rod of L type convenience, and then make things convenient for the follow-up material of collecting in the collecting box of people to handle, simple operation, convenient to use.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

figure 2 is a cross-sectional view of a cartridge of the present invention;

FIG. 3 is a schematic view of the mounting structure of the homogenizing box of the present invention;

FIG. 4 is a schematic view of the internal structure of the preheating cylinder of the present invention;

fig. 5 is a schematic structural view of the connecting screen plate of the present invention;

reference numbers in the figures: 1. a charging barrel; 2. a nozzle; 3. a heating cylinder; 4. a rotating shaft; 5. a material conveying auger; 6. feeding pipes; 7. a material homogenizing box; 8. a feed hopper; 9. a limiting chute; 10. connecting the sieve plate; 11. a material homogenizing screen; 12. a handle; 13. a preheating cylinder; 14. a top cover; 15. a heating chamber; 16. an electric heating tube; 17. a connecting ring seat; 18. a discharge port; 19. a connecting seat; 20. limiting the jacks; 21. a collection box; 22. an L-shaped fixed connecting rod; 23. an anti-overflow baffle.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in figures 1-5, the utility model provides a technical scheme, a granular material feeding mechanism for a 3D printer material spraying device, comprising a material cylinder 1, wherein the outer diameter of the material cylinder 1 is 18mm, the inner diameter is 12mm, the length is 150mm, a nozzle 2 is sleeved outside one end of the material cylinder 1, the aperture of the nozzle is 0.3mm, a heating cylinder 3 is sleeved outside the outer side part of the material cylinder 1, the middle part of the inner side of the material cylinder 1 is rotatably connected with a rotating shaft 4, a material conveying auger 5 is fixedly arranged at the position inside the material cylinder 1 outside the rotating shaft 4, a feeding pipe 6 is penetratingly connected at the top part of one side of the material cylinder 1, a homogenizing box 7 is fixedly arranged at the top end of the feeding pipe 6, a feeding hopper 8 is fixedly arranged at the top end of the homogenizing box 7, a guide chute is arranged at the connection part of the inner bottom of the homogenizing box 7 and the feeding pipe 6, a feeding hopper 8, the inner side end of the material homogenizing box 7 is obliquely provided with a limiting chute 9, the inner side of the limiting chute 9 is embedded and slidably connected with a connecting sieve plate 10, the middle part of the inner side of the connecting sieve plate 10 is embedded and fixedly connected with a material homogenizing screen 11, the edge end of the connecting sieve plate 10 is fixedly bonded with a sealing rubber sleeve at the position at the inner side of the limiting chute 9, and a handle 12 is fixedly arranged at one side end of the connecting sieve plate 10, so that the connection between the connecting sieve plate 10 and the limiting chute 9 is tighter, and the phenomenon of material leakage caused by a gap at the connection part between;

the outer side of the feeding pipe 6 is located at the bottom of the homogenizing box 7, the preheating cylinder 13 is sleeved, the top of the preheating cylinder 13 is connected with the top cover 14 in a matching mode, the heating cavity 15 is formed inside the preheating cylinder 13, the electric heating pipes 16 are installed at the bottom of the inner side of the heating cavity 15 in an equidistant mode, the pressure relief holes are formed inside the top cover 14, the input ends of the electric heating pipes 16 are electrically connected with the output end of an external power supply, the air pressure inside the heating cavity 15 is kept constant, and the top end of each electric heating pipe 16 is fixedly provided.

Even 7 a side portion of workbin and the corresponding position department in connection sieve 10 bottom have seted up discharge gate 18, 7 limit of workbin end is located 18 bottom position departments of discharge gate and symmetrically installs connecting seat 19, connecting seat 19 is inside to have seted up spacing jack 20, 7 bottom one side of even workbin is located 18 bottom position departments of discharge gate and is provided with collecting box 21, collecting box 21 limit end and the equal fixedly connected with L type fixed link 22 of 19 corresponding position departments of connecting seat 21 limit, L type fixed link 22 inlays in spacing jack 20, fixed plug-in connection is between collecting box 21 through its limit end L type fixed link 22 and connecting seat 19, and collecting box 21 top limit portion fixed mounting has anti-overflow baffle 23, collecting box 21 fixedly connected with and convenient dismantlement.

The utility model discloses a theory of operation and use flow: in the practical application process of the particle material feeding mechanism for the material spraying device of the 3D printer, the material barrel 1 and the nozzle 2 are firstly installed, and meanwhile, the rotating shaft 4 and the material conveying auger 5 are driven to rotate by an external driving motor;

after the preparation work is finished, the granular materials are conveyed into the material homogenizing box 7 through the feed hopper 8, the materials are filtered through the material homogenizing screen 11 connected with the inner side of the sieve plate 10 after entering the material homogenizing box 7, so that the materials which do not meet the standard in the mixed materials are filtered, at the moment, the materials which meet the screening standard pass through the material homogenizing screen 11, the materials which do not meet the screening standard slide to the discharge port 18 from the material homogenizing screen 11, and the materials which do not meet the screening standard are conveyed into the collecting box 21 through the discharge port 18 to be stored in a centralized manner;

when materials meeting the requirements pass through the material homogenizing screen 11, the materials are conveyed downwards continuously, and in the conveying process, the materials passing through the preheating cylinder 13 are heated in the heating chamber 15 through the electric heating pipe 16 in the preheating cylinder 13, so that the materials are preheated, the certain heat is ensured in the materials before entering the charging barrel 1, the time required by the subsequent heating of the materials is shortened, and the heating effect of the materials is improved;

when the substandard materials enter the collecting box 21 and the materials in the collecting box 21 are collected to a certain degree, the L-shaped fixed connecting rod 22 is fixedly connected with the connecting seat 19 and the limiting insertion hole 20 and is convenient to detach, so that the collecting box 21 and the refining box 7 can be conveniently and quickly separated, and further the materials can be conveniently and manually further processed in a subsequent process;

and finally, in the process of conveying through the conveying auger 5, the extrusion pressure is 3-6 kilograms of force, and the heating cylinder 3 on the outer side of the charging cylinder 1 is used for heating the material on the inner side of the charging cylinder 1, so that the subsequent material can be conveniently extruded and used.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

The utility model provides a granule material feed mechanism that material device was used is spouted to 3D printer, including feed cylinder (1), nozzle (2) have been cup jointed in the feed cylinder (1) one end outside, feed cylinder (1) outside limit portion cup joints and installs cartridge heater (3), feed cylinder (1) inboard middle part is rotated and is connected with pivot (4), pivot (4) outside is located feed cylinder (1) internal position department fixed mounting has defeated material auger (5), feed cylinder (1) one side top position department through connection has material loading pipe (6), its characterized in that: the top end of the feeding pipe (6) is fixedly provided with a homogenizing box (7), the top end of the homogenizing box (7) is fixedly provided with a feeding hopper (8), the inner side end of the homogenizing box (7) is obliquely provided with a limiting sliding chute (9), the inner side of the limiting sliding chute (9) is embedded and slidably connected with a connecting sieve plate (10), and the middle part of the inner side of the connecting sieve plate (10) is embedded and fixedly connected with a homogenizing screen (11);

the utility model discloses a preheating device, including material loading pipe (6), preheating cylinder (13), heating chamber (15), electric heating pipe (16) are installed to heating chamber (15) inboard bottom equidistance, electric heating pipe (16) top fixed mounting has connecting ring seat (17), and preheating cylinder (13) top agrees with and is connected with top cap (14) in the position department of being located even workbin (7) bottom in the material loading pipe (6) outside, heating chamber (13) inside has been seted up.
2. The granule feeding mechanism for the 3D printer material spraying device according to claim 1, characterized in that: the material guide groove is formed in the connecting position of the bottom of the inner side of the material homogenizing box (7) and the feeding pipe (6), and a feeding hopper (8) is fixedly mounted on the edge portion of the top end of the material homogenizing box (7).
3. The granule feeding mechanism for the 3D printer material spraying device according to claim 1, characterized in that: the side end of the connecting sieve plate (10) is positioned at the inner side of the limiting chute (9) and is fixedly bonded with a sealing rubber sleeve, and a handle (12) is fixedly arranged at one side end of the connecting sieve plate (10).
4. The granule feeding mechanism for the 3D printer material spraying device according to claim 1, characterized in that: the pressure relief hole is formed in the top cover (14), and the input end of the electric heating pipe (16) is electrically connected with the output end of an external power supply.
5. The granule feeding mechanism for the 3D printer material spraying device according to claim 1, characterized in that: even workbin (7) one side limit portion corresponds position department with connection sieve (10) bottom and has seted up discharge gate (18), even workbin (7) limit end is located discharge gate (18) bottom position department symmetry and installs connecting seat (19), limiting jack (20) have been seted up to connecting seat (19) inside, even workbin (7) bottom one side is located discharge gate (18) bottom position department and is provided with collecting box (21), collecting box (21) limit end corresponds equal fixedly connected with L type fixed connecting rod (22) of position department with connecting seat (19), L type fixed connecting rod (22) inlay in limiting jack (20).
6. The granule feeding mechanism for the 3D printer material spraying device according to claim 5, characterized in that: the collecting box (21) is fixedly connected with the connecting seat (19) in an inserting manner through an L-shaped fixed connecting rod (22) at the edge end of the collecting box, and an anti-overflow baffle (23) is fixedly mounted at the edge part of the top end of the collecting box (21).