CN216661816U

CN216661816U - Unloader and 3D print wire rod apparatus for producing

Info

Publication number: CN216661816U
Application number: CN202123086501.0U
Authority: CN
Inventors: 熊祖德
Original assignee: Huizhou Xiongtian High Tech Material Technology Co ltd
Current assignee: Huizhou Sanci Technology Co.,Ltd.
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-06-03
Anticipated expiration: 2031-12-08

Abstract

The utility model discloses a blanking device and a 3D printing wire production device, wherein the blanking device comprises a stock bin, a material tray and a turntable, wherein the stock bin is provided with a feeding hole and a discharging hole which are arranged from top to bottom at intervals; the charging tray is arranged in the storage bin and comprises a plurality of color primary hoppers and main hoppers which are circumferentially arranged at intervals, a first leakage hole is formed in the bottom surface of each color primary hopper, and a second leakage hole is formed in the bottom surface of each main hopper; the carousel has first measurement hole and the second measurement hole of interval setting, and a plurality of first hourglass material holes set up on the moving path in first measurement hole, and a plurality of second hourglass material holes set up on the moving path in second measurement hole. The feeding device provided by the utility model is simple in structure, manual feeding is not needed at any time, the labor cost is greatly reduced, the feeding amount of the feeding device at each time is more uniform, the homochromatic interval of rainbow gradient color wires produced by the feeding device is shorter, and a better rainbow printing effect can be achieved.

Description

Unloader and 3D print wire rod apparatus for producing

Technical Field

The utility model relates to the technical field of 3D printing, in particular to a blanking device and a 3D printing wire production device.

Background

In the production process of the 3D printing wire rod in the prior art, color master batches or toner raw materials of different colors are basically added into a screw extruder in sequence through manual work to produce the multi-line 3D printing wire rod, but the feeding mode is time-consuming and labor-consuming, the required labor cost is high, the blanking amount of the single color master batch or toner raw material is difficult to guarantee, and the appearance degree of the produced rainbow gradient wire rod is poor.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a blanking device, and aims to solve the problems that blanking of a 3D printing wire in the prior art is not uniform in the production process and the required labor cost is high.

The utility model provides a blanking device, which comprises:

the bin is provided with a feeding hole and a discharging hole which are arranged from top to bottom at intervals;

the charging tray is arranged on the stock bin to divide the stock bin into a storage bin communicated with the feeding hole and a discharge bin communicated with the discharge hole, the charging tray comprises a plurality of color master hoppers and main hoppers which are circumferentially arranged at intervals, the main hoppers are arranged on the periphery of the color master hoppers, the main hoppers and the color master hoppers are consistent in quantity and are arranged in a one-to-one correspondence manner, each color master hopper is provided with a color master feeding hole for adding color master, and each main hopper is provided with a main material feeding hole for adding main materials;

the bottom surface of each color masterbatch bucket is provided with a first material leaking hole, and the bottom surface of each main hopper is provided with a second material leaking hole;

the carousel, the carousel rotate install in the feed bin and with the lower surface laminating setting of charging tray, the carousel has first measuring hole and the second measuring hole that the interval set up, and is a plurality of first hourglass material hole set up in on the removal route in first measuring hole, it is a plurality of second hourglass material hole set up in on the removal route in second measuring hole.

Optionally, the discharging device further comprises a material leaking disc, the material leaking disc is installed in the stock bin and is arranged below the rotary disc, a plurality of first connecting holes and second connecting holes are circumferentially formed in the material leaking disc, the first connecting holes are formed in a moving path of the first material measuring holes, and the second material leaking holes are formed in a moving path of the second material measuring holes;

each first butt joint hole is used for guiding the color masterbatch in the first material metering hole into the funnel, and each second butt joint hole is used for guiding the main material in the second material metering hole into the funnel.

Optionally, each first connection hole and the second connection hole correspondingly arranged thereto form a group;

and the connecting line of the central point of the first butt joint hole and the central point of the material leakage disc and the connecting line of the central point of the second butt joint hole and the central point of the material leakage disc are arranged at an angle.

Optionally, an angle between a line connecting the center point of each group of the first connection holes and the center point of the skip tray and a line connecting the center point of the second connection holes and the center point of the skip tray is 3 to 15 °.

Optionally, the first material leaking holes and the first butt holes are the same in number and are circumferentially staggered;

the second material leaking hole and the second butt joint hole are arranged in a circumferentially staggered mode.

Optionally, the number of the color hoppers is greater than 3 and less than or equal to 15.

Optionally, each first material leaking hole and the second material leaking hole correspondingly arranged to the first material leaking hole form a group;

the center point of the material tray, the center point of the first material leaking hole and the center point of the second material leaking hole of each group are positioned on the same straight line.

The utility model further provides a 3D printing wire production device which comprises the blanking device.

The blanking device provided by the utility model comprises a bin rotary table, wherein the bin is provided with a feeding hole and a discharging hole which are arranged from top to bottom at intervals; the charging tray is arranged in the stock bin to divide the stock bin into a storage bin communicated with the feeding port and a discharge bin communicated with the discharge port, the charging tray comprises a plurality of color master hoppers and main hoppers which are circumferentially arranged at intervals, and the main hoppers are arranged on the periphery of the color master hoppers; the main hoppers and the color master hoppers are consistent in quantity and are arranged in one-to-one correspondence, each color master hopper is provided with a color master feed port for adding color master, and each main hopper is provided with a main material feed port for adding main materials; the bottom surface of each color master hopper is provided with a first material leaking hole, and the bottom surface of each main hopper is provided with a second material leaking hole; the carousel rotates to be installed in the feed bin and sets up with the lower surface laminating of charging tray, and the carousel has first material measuring hole and second material measuring hole, and a plurality of first material leaking holes set up on the removal route in first material measuring hole, and a plurality of second material leaking holes set up on the removal route in second material measuring hole. When the rotary plate rotates, the first material measuring holes are communicated with the first material leaking holes in sequence, and the second material measuring holes are communicated with the second material leaking holes in sequence to perform blanking operation. Each main hopper and each color master hopper that the interval set up all have a storage space in, when needs unloading, only need to add the thick liquids of corresponding colour to each main hopper and each color master hopper through the feed inlet of each hopper can. In the rotating process of the rotary table, the first material measuring holes are sequentially communicated with the first material leaking holes of each color master hopper, and the second material measuring holes are sequentially communicated with the second material leaking holes of each main hopper, namely, the rotary table is sequentially communicated with each group of main hopper and color master hopper respectively with the first material measuring holes and the second material measuring holes in the rotating process of the rotary table, so that the color master hoppers of all colors are sequentially fed. And every main hopper and look mother fill all have storage space, can once only deposit a large amount of raw materials, and do not need the manual reinforced constantly of manual work to greatly reduced the cost of labor. And the upper surface of carousel and the lower surface of charging tray laminate mutually, and the carousel is at the rotation unloading in-process, grinds flatly between the upper surface of carousel and the hourglass charging tray for the carousel feeding at every turn is even more controllable, makes the interval of the rainbow wire rod of producing shorter, so that the 3D who produces prints the different look intervals of wire rod shorter, reaches better rainbow gradual change and prints the effect.

Drawings

In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is an exploded view of a blanking device according to an embodiment of the present invention;

FIG. 2 is a schematic view of the tray of FIG. 1;

FIG. 3 is a schematic structural view of the turntable in FIG. 1;

FIG. 4 is a schematic structural view of the skip pan in FIG. 1;

FIG. 5a is a schematic view showing the sequential arrangement of the color concentrates and the main materials after the discharging device flows into the hopper from three adjacent mixing areas;

FIG. 5b is a schematic view of the color concentrate of FIG. 5a after mixing;

fig. 6 is a schematic structural view of an embodiment of the blanking device of the present invention.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

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.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The problem that the labor cost for blanking in the production process is high and the accuracy is difficult to guarantee by the single blanking amount of a 3D printing wire in the prior art is solved.

The utility model provides a blanking device.

In one embodiment, as shown in fig. 1, 2, 3 and 6, the blanking device is mounted on the screw extruder for feeding the screw extruder. The blanking device comprises a storage bin 10 and a rotary disc 20, wherein the storage bin 10 is provided with a feeding hole 11 and a discharging hole 12 which are arranged from top to bottom at intervals; the charging tray 30 is arranged in the bin 10 to divide the bin 10 into a storage bin 13 communicated with the feeding hole 11 and a discharge bin communicated with the discharge hole 12, the charging tray 30 comprises a plurality of color master hoppers 31 and a plurality of main hoppers 32 which are circumferentially arranged at intervals, and the main hoppers 32 are arranged at the periphery of the color master hoppers 31; a first material leaking hole 311 is formed in the bottom surface of each color hopper 31, and a second material leaking hole 312 is formed in the bottom surface of each main hopper 32; the carousel 20 rotates to be installed in feed bin 10 and meets with the lower surface of charging tray 30, carousel 20 has first material measurement hole and second material measurement hole 202, a plurality of first material leakage holes 311 set up on the removal route in first material measurement hole, a plurality of second material leakage holes 312 set up on the removal route in second material measurement hole 202, first material measurement hole communicates with a plurality of first material leakage holes 311 one by one in proper order when carousel 20 rotates promptly, second material measurement hole 202 communicates with a plurality of second material leakage holes 312 one by one in proper order. And each interval sets up the main hopper 32 and all have the storage space in each look female fill 31, when needs unloading, only need to add the raw materials and the look female of corresponding colour to each main hopper 32 and each look female fill 31, store can. During the rotation of the turntable 20, the first material measuring hole is sequentially communicated with the first material leaking hole 311 of each color master hopper 31, the second material measuring hole 202 is sequentially communicated with the second material leaking hole 312 of each main hopper 32, the color master in the color master hopper 31 and the main materials in each main hopper 32 enter the hopper 14 through the turntable 20, the discharging is completed, during the rotation of the turntable 20, the first material measuring hole and the second material measuring hole 202 on the turntable 20 are respectively communicated with the main hopper 32 and the color master hopper 31 of each group, and the simultaneous discharging is completed.

For convenience of explanation, each color masterbatch bucket 31 and the main hopper 32 disposed at the periphery thereof corresponding thereto are defined as a storage group 33, that is, a plurality of storage groups 33 are circumferentially spaced on the tray 30.

It should be noted that the silo 10 can be a square silo, a cylindrical silo or other shape silo, which is not limited herein. In this embodiment, from the production consideration of being convenient for, the feed bin 10 chose for use be the cylinder storehouse, and inside cavity, the direct inner wall joint with feed bin 10 of periphery wall of charging tray 30 is fixed, or integrated into one piece, separates feed bin 10 for storage silo 13 and play feed bin.

As shown in fig. 1, fig. 2 and fig. 3, a plurality of partition plates are convexly disposed on the upper surface of the charging tray 30 to divide the charging tray 30 into a plurality of parts, wherein the charging tray 30, two adjacent partition plates and the inner wall surface of the bin 10 enclose to form a storage group 33, and an annular plate is convexly disposed on the upper surface of the charging tray 30 and intersects with each partition plate to divide each storage group 33 into a color mother hopper 31 and a main hopper 32 as a storage space, so that slurries with different colors can be directly stored in each color mother hopper 31 and each main hopper 32 without mutual interference. The upper end of each color hopper 31 is a color concentrate feed port, and the upper end of each main hopper 32 is a main material feed port. The size of the storage space of each color hopper 31 and the main hopper 32 is set according to the requirement, so that slurry is stored in each color hopper 31 and the main hopper 32, the blanking device can keep continuous production for several hours or several days in the blanking process without manual feeding, when the color masterbatch and the main ingredient stored in the color hopper 31 and the main hopper 32 are about to run out, the main ingredient can be added from the main ingredient feed port 11 of each main hopper 32 through manual work or machines, and the color masterbatch can be added from the color masterbatch feed port 11 of each color hopper 31. Therefore, manual quantitative blanking is not needed frequently, and labor cost is greatly reduced.

It can be understood that, from the view of being convenient for feed, the storage space of each main hopper 32 is all unanimous, and when the storage space of each color masterbatch fill 31 is all unanimous, because the size of feed opening is the same to thick liquids in a plurality of fill can be consumed in step, and it is more convenient to feed.

It should be further noted that the main hoppers 32 are used to store main materials (white slurry), each color hopper 31 is set according to the number of color types of the 3D wire required to be obtained by the user, and each color hopper 31 may be used to store color slurries of different colors, such as red, orange, red, green, cyan, violet, yellow, blue, gray, white, and the like.

For example, during the rotation of the rotary disc 20, the first material-measuring hole is communicated with the first material-leaking hole 311 of the color hopper 31 filled with the red color masterbatch slurry, the second material-measuring hole 202 is communicated with the first material-leaking hole 311 of the main hopper 32 disposed at the periphery of the color hopper 31, at this time, the red color masterbatch slurry disposed in the color hopper 31 sequentially flows into the hopper 14 through the first material-leaking hole 311 and the first material-measuring hole and then enters the screw extruder through the discharge port 12, and the main material sequentially flows into the hopper 14 through the second material-leaking hole 312 and the second material-measuring hole 202 and then flows out through the discharge port 12. As the rotating disc 20 rotates, the first material measuring hole is separated from the first material leaking hole 311 of the mixing bowl 10, and is communicated with a first leakage hole 311 and a first measuring hole in a color hopper 31 filled with yellow color master slurry after the red color master slurry is filled, the yellow color master slurry flows into the hopper 14 through the first measuring hole, a second leakage hole 312 and a second measuring hole 202 of a main hopper 32 arranged at the periphery of the color hopper 31 filled with the yellow color master slurry, the main material flows into the hopper 14 through the second leakage hole 312 and the second measuring hole 202 in sequence and then flows from the discharge hole 12, the secondary blanking is realized, and the like, the sequential blanking of each storage group 33 is realized along with the rotation of the turntable 20, therefore, the color master batch slurry with various colors is sequentially added into the screw extruder without manual operation, so that the production cost is saved, and the production efficiency is greatly improved.

In an embodiment, the number of optional color hoppers 31 is 3-15, such as 3, 4, 5, 6, 7, 8, 10, 12, 15, and any number therebetween. It can be understood that the more the number of the color masterbatch hoppers 31 is, the more the color masterbatch can be filled, and the more the color masterbatch can be filled into the screw extruder. For example, when the user needs 10 colors of 3D wires, the upper surface of the tray 30 has 10 storage groups 33 circumferentially spaced apart from each other, and the 10 storage groups 33 are separated from each other, and the stored slurry therein does not interfere with each other. Further, each stock group 33 is divided into the color hopper 31 and the main hopper 32 by an outer ring plate. During production, color master batches with different colors are directly placed in the color master batch hopper 31 of each mixing bin 10, main materials are stored in the main hopper 32 of each storage group 33, and in the rotating process of the rotary disc 20, the first material measuring hole and the second material measuring hole 202 formed in the rotary disc 20 are sequentially communicated with the first material leaking hole 311 and the second material leaking hole 312 of each storage group 33 and are used for blanking, so that the color master batches with different colors in 10 are sequentially blanked, and the blanking process is circulated. When the slurry in each storage bin 13 is about to run down or reaches the set lowest position, the slurry in each storage bin 13 is manually filled, so that manual feeding is not needed, and the labor cost is reduced. And the upper surface of carousel 20 and the lower surface of charging tray 30 laminate mutually for in the rotatory process of carousel 20, when first measurement hole left one of them first hourglass material hole 311, the thick liquids of the entrance point of first measurement hole are smeared by the lower surface of charging tray 30, make 10 blending bunker 10 single unloading volume can keep unanimous, make the interval of the different colours of the wire rod of producing more even.

In one embodiment, for convenience of description, each first material leaking hole 311 and the corresponding second material leaking hole 312 are grouped; the center point of the tray 30 is located on the same straight line with the center point of the first material leaking hole 311 and the center point of the second material leaking hole 312 of each group.

It can be understood that, during the blanking process by the rotation of the rotary disc 20, since the rotary disc 20 rotates at a constant speed, the time for the first material metering hole of the rotary disc 20 to communicate with each first material leaking hole 311 is constant, and the time for the second material metering hole 202 of the rotary disc 20 to communicate with each second material leaking hole is constant, that is, the content of slurry leaking from each first material leaking hole 311 and each second material leaking hole 312 per unit time is constant. Therefore, in order to control the single blanking amount of each mixing silo 10, the blanking amount of each mixing silo 10 in one rotation period can be adjusted according to the aperture sizes of the first material measuring hole 201 and the second material measuring hole 202 formed on the rotary disc 20, and the shape and the size of the first material measuring hole and the first material leaking hole 311 are set to be consistent, and the shape and the size of the second material measuring hole 202 and the second material leaking hole 312 are set to be consistent, so that the first material measuring hole and the plurality of first material leaking holes 311 are aligned in sequence more accurately when the rotary disc 20 rotates and in the process, the alignment between the second material measuring hole 202 and the plurality of second material leaking holes 312 is more accurate, the blanking of the whole blanking device is smoother, and the blockage of the material leaking holes cannot be caused. The material tray 30 is a circular disc, and when the center point of the material tray 30, the center point of the first material leaking hole 311 and the center point of the second material leaking hole 312 of each group are located on the same straight line, the production and the processing of the material tray 30 are more convenient.

In one embodiment, the first measuring hole is a circular hole, and the second measuring hole 202 is a square hole. Compared with other types of through holes, the first measuring hole is set to be a circular hole, for example, when the turntable 20 drives the first measuring hole to rotate to a position right below one of the first leaking holes 311, the circular first measuring hole is filled with slurry flowing out of the first leaking hole 311, and at this time, the volume of the slurry in the first measuring hole is more convenient to calculate, so that the single-time discharging amount is more convenient to control. Correspondingly, the second measuring hole 202 is also formed as a square through hole to facilitate calculation of the volume of the main material when the second measuring hole 202 is filled with the main material, and of course, the second measuring hole 202 may also be a circular through hole or a through hole with other shapes, which is not limited herein.

In one embodiment, the turntable 20 further comprises a driving assembly, the driving assembly is mounted to the bin 10, and the driving assembly is in driving connection with the turntable 20.

Alternatively, the rotating disc 20 may be a rotating disc, a square disc or other shape of the rotating disc 20, which is not limited herein. In this embodiment, the rotating disc 20 is a circular disc, and the driving assembly includes a motor, and is in driving connection with the rotating disc 20, and is used for driving the rotating disc 20 to rotate along the central line of the rotating disc 20, so as to realize the sequential blanking of the storage bin 13.

In an embodiment, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, the blanking device further includes a material leaking tray 40, the material leaking tray 40 is installed in the bin 10 and is disposed below the rotating disc 20, a plurality of first connecting holes 41 and a plurality of second connecting holes 42 are circumferentially formed in the material leaking tray 40, the plurality of first connecting holes 41 are disposed on a moving path of the first material measuring hole, and the plurality of second material leaking holes 312 are disposed on a moving path of the second material measuring hole 202.

Each of the first docking holes 41 is used for guiding the color concentrate in the first material metering hole into the hopper 14, and each of the second docking holes 42 is used for guiding the main material in the second material metering hole 202 into the hopper 14.

It should be noted that, a circumferential force is generated in the rotation process of the turntable 20, when the color master slurry of the color master hopper 31 flows into the first butt hole 41 from the first material measuring hole formed in the turntable 20, because the vertical distance between the turntable 20 and the discharge hole 12 of the funnel 14 is too large, the color master slurry flowing out from the lower end of the first material measuring hole is thrown away under the action of the circumferential force, and thus the color master slurry of other colors flowing down from the adjacent material storage group 33 is mixed, which affects the manufacturing effect of the 3D wire rod. Therefore, in this embodiment, a skip tray 40 is disposed below the rotary plate 20 for vertically guiding the color concentrate slurry flowing through the first measuring hole and the main material flowing through the second measuring hole 202 into the hopper 14. Alternatively, the turntable 20 and the skip pan 40 are arranged as close as possible, the upper surface of the skip pan 40 can be attached to the lower surface of the turntable 20, namely, the turntable 20 is limited in the space between the material tray 30 and the material leakage tray 40 in the rotating process, so that in the rotating process of the turntable 20, when the first material measuring hole is aligned and communicated with one of the first material leaking holes 311, the color masterbatch slurry flowing out of the color masterbatch hopper 31 corresponding to the first material leaking hole 311 sequentially flows through the first material leaking hole 311, the first material measuring hole and the first connection hole 41 to flow out to the hopper 14, the rotation of the rotary plate 20 will not affect the color masterbatch slurry flowing out of the first connection hole 41, so that the color masterbatch slurry flowing out of the first butt joint hole 41 enters the funnel 14 under the action of gravity, and the color masterbatch slurry flowing into the funnel 14 and the adjacent color masterbatch slurry are prevented from being mixed, thereby influencing the production of the 3D printing wire.

In one embodiment, each first connection hole 41 and the corresponding second connection hole 42 are a set; the connecting line of the central point of each group of the first connecting holes 41 and the central point of the leakage tray 40 is arranged at an angle with the connecting line of the central point of the second connecting holes 42 and the central point of the leakage tray 40.

It should be noted that the color of the color master batch slurry cannot be changed in the mixing process of the color master batch slurry and the component materials of various colors. Each set of first docking holes 41 and the position on the fritting disc 40 is defined as a compounding area 43. A connecting line of the center point of each group of the first connecting hole 41 and the center point of the second connecting hole 42 is arranged at an angle with a connecting line of the center point of the second connecting hole 42 and the center point of the material leakage disc 40, that is, the first connecting hole 41 and the second connecting hole 42 are eccentrically arranged on the material leakage disc 40, so that when the first material measuring hole and the second material measuring hole 202 of the rotary disc 20 are arranged in one material mixing zone 43 in the rotation process of the rotary disc 20, the first material measuring hole is firstly communicated with the first connecting hole 41, and then the second material measuring hole 202 is communicated with the second connecting hole 42; alternatively, the second dosing hole 202 of the rotary plate 20 is communicated before the second docking hole 42, and then the first dosing hole is communicated with the first docking hole 41. The color concentrates and the main materials which pass through each mixing area 43 are sequentially divided into color concentrates, main materials, color concentrates and the like, and the color concentrates falling into the funnel 14 from each mixing area 43 are sequentially divided into a section of main material between two adjacent color concentrates with different colors, so that color mixing between the color concentrates with different colors is prevented. And then the rotating disc 20 rotates and transfers the first material measuring hole and the second material measuring hole 202 which are arranged on the rotating disc 20 to the next material mixing area 43, and in the process of communicating with the first connecting hole 41 and the second connecting hole 42 of the material mixing area 43, the slurry flowing down from the material mixing area 43 at least has unmixing between the part of color master batch which firstly falls and the main material which finally falls when the slurry flows into the screw extruder from the material outlet 12, and also can obtain the slurry of the front end main material, the middle mixed color material and the rear end color master batch, namely, the unmixed main material is always arranged between the two adjacent color master batches, so that the problem of mutual interference of colors of the two adjacent wires with different color differences during material mixing is avoided to a great extent, the color difference separation of the produced wires is more obvious, and the display effect is better.

For example, the color concentrate bin in one of the storage groups 33 contains red color concentrate slurry 1, the white color concentrate 4 in the main hopper 32, and the blue color concentrate 2 and the purple color concentrate 3 respectively contained in each color concentrate bin of two adjacent storage groups 33, the distribution of the color concentrates and the white color concentrate is as shown in fig. 5a, the color concentrates are sequentially white color concentrate 4, blue color concentrate 2, white color concentrate 4, red color concentrate 1, white color concentrate 4 and purple color concentrate 3, in the gradual change process, the color concentrates of two adjacent colors are uniformly diffused from two ends respectively, the color of the color concentrate slurry gradually changed in sequence is converted into the color of the color concentrate slurry as shown in fig. 5b, the formed wire rod slurry is sequentially blue color concentrate 2, red color concentrate 1 and purple color concentrate 3, so that the color concentrates of two adjacent different colors are mixed with the main material in the gradual change process, thereby the wire rod of two kinds of adjacent different colour differences of very big degree is when the compounding, the problem of colour mutual interference for when the same look interval of the wire rod of producing is shorter, colour mixture problem can not appear.

In one embodiment, the angle between the line connecting the center point of the first connecting hole 41 and the center point of the drain pan 40 and the line connecting the center point of the second connecting hole 42 and the center point of the drain pan 40 is 3-15 °, i.e., the eccentricity angle between the first connecting hole 41 and the second connecting hole 42 on the drain pan 40 is 3-15 °. The included angle therebetween may be 3 °, 5 °, 10 °, 12 °, 15 ° and any value therebetween, which is not limited herein. When the eccentric angle between the first butt joint hole 41 and the second butt joint hole 42 is within the range of 2-15 degrees, for example, 10 degrees, when the main material (white master batch) between the color masterbatches of two adjacent colors enters the screw extruder at the blanking, the two ends of the color masterbatch of each color can be just mixed with the main material respectively, and the color mixing on the two adjacent color masterbatches can not occur, so that the two adjacent color masterbatches are prevented from generating mutual interference in the material mixing process and mutually mixed color, the same color interval of the produced wire rod is influenced, the different color intervals of the produced 3D wire rod are shorter, and the color display effect is better.

In one embodiment, the first material leaking holes 311 and the first connecting holes 41 are the same in number and are circumferentially staggered; the second weep hole 312 and the second mating hole 42 are circumferentially offset.

Optionally, the first material leaking holes 311 correspond to the first connection holes 41 one by one, and the second material leaking holes 312 correspond to the second connection holes 42 one by one, the color masterbatch flowing down from each first material leaking hole 311 flows into the hopper 14 from the first connection hole 41 on the material leaking tray 40 opposite thereto after passing through the first material measuring hole, and the main material flowing down from each second material leaking hole 312 flows into the hopper 14 from the second connection hole 42 on the material leaking tray 40 opposite thereto after passing through the second material measuring hole 202. In the process, when the turntable 20 rotates to drive the first material measuring hole to communicate with the first material leaking hole 311, at this time, the first connection hole 41 corresponding to the first material leaking hole 311 is separated from the first material leaking hole 311, the material in the color masterbatch hopper 31 flows into the first material measuring hole through the first material leaking hole 311 to be stored, along with the rotation of the turntable 20, the first connection hole 41 and the first material leaking hole 311 are gradually separated, and the upper surface of the turntable 20 is leveled with the lower surface of the material tray 30, at this time, the color masterbatch in the first material measuring hole is in a certain amount, and along with the rotation of the turntable 20, the lower end of the first material measuring hole is communicated with the first material leaking hole 311, and the color masterbatch in the first material measuring hole is transferred into the hopper 14 through the first material leaking hole 311, so as to complete quantitative blanking. The manner of the main material discharged from the second leakage hole 312 is the same as that of the color masterbatch, and therefore, the repeated description is omitted here, and the discharging in this manner can ensure that the content of the slurry entering the hopper 14 from each color masterbatch bucket 31 and each main hopper 32 is the same, that is, the slurry can be contained in the first measuring hole and the second measuring hole 202. The volume of reaching through setting for first measurement hole and second measurement hole 202 and coming indirect control unloader major ingredient and the volume of masterbatch down at every turn, come the interval of the 3D wire rod of control production for the wire rod colour interval's that the user can produce kind more, and the same colour interval can reach shorter.

In one embodiment, the hopper 14 is tapered from the connection with the feed bin 10 in a vertically downward direction, and the discharge port 12 is disposed at an end of the hopper 14 away from the feed bin 10 and is used to feed the screw extruder.

Alternatively, the hopper 14 tapers from the connection with the feeding chamber 10 in a vertically downward direction to form a cone shape, so that the material from the feeding chamber 10 can flow along the inner wall of the feeding chamber 10 to the discharge port 12, and flow into the screw extruder from the position of the discharge port 12 to feed the screw extruder. It will be understood that the color concentrates and the main ingredients in the upper bin 10 sequentially flow into the discharge bin through the rotary plate 20 and the skip plate 40, and after the color concentrates and the main ingredients in each mixing bin 10 in the feeding bin 10 enter the hopper 14, they flow down along the wall of the hopper 14 to the discharge port 12 and enter the screw extruder. The distance from the bin wall of the hopper 14 to the discharge port 12 of the slurry flowing into the feeding bin 10 from each mixing bin 10 is consistent, and the motion tracks of the slurry flowing into each mixing bin 10 on the bin wall of the hopper 14 are not interfered with each other, so that the blanking device can perform uninterrupted blanking. Namely, the blanking time interval difference of the two adjacent color master batches and the rotating speed of the turntable 20 are controlled, so that the slurry entering the hopper 14 through the two adjacent reserve areas can sequentially flow into the discharge port 12 and sequentially flow into the screw extruder from the discharge port 12, and the uninterrupted blanking is ensured.

It should be noted that the hopper 14 may be integrally formed with the feeding bin 10, or may be separately formed from the feeding bin 10, which is not limited herein. When the hopper 14 and the feeding bin 10 are arranged separately, the hopper 14 and the feeding bin 10 are connected by bolts or fixed by welding.

In another embodiment, the blanking unit further comprises a hopper having a flared end and a necked end, the flared end of the hopper being in communication with the discharge port 12 such that material in the hopper 14 can enter the hopper and be combined together, and the necked end of the hopper being connected to the feed end of the screw extruder and being adapted to feed the screw extruder.

The utility model further provides a 3D printing wire production device which comprises a blanking device, the specific structure of the blanking device refers to any one of the embodiments, and the blanking device adopts all the technical schemes of all the embodiments, so that all the beneficial effects brought by the technical schemes of the embodiments are at least achieved, and the detailed description is omitted.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical solutions of the present invention, which are made by using the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A blanking device is characterized by comprising:

the charging tray is arranged on the stock bin to divide the stock bin into a storage bin communicated with the feeding hole and a discharge bin communicated with the discharge hole, the charging tray comprises a plurality of color master hoppers and main hoppers which are circumferentially arranged at intervals, the main hoppers are arranged on the periphery of the color master hoppers, each color master hopper is provided with a color master feeding hole for adding color master, and each main hopper is provided with a main material feeding hole for adding main materials;

the rotary disc is rotatably arranged in the storage bin and is attached to the lower surface of the material disc, the rotary disc is provided with first material measuring holes and second material measuring holes which are arranged at intervals, a plurality of first material leaking holes are formed in the moving path of the first material measuring holes, and a plurality of second material leaking holes are formed in the moving path of the second material measuring holes;

the driving assembly is arranged on the storage bin, connected with the rotary table and used for driving the rotary table to rotate at a constant speed; and

the funnel, the upper end of funnel with the discharge gate is connected.

2. The blanking device according to claim 1, wherein the blanking device further comprises a material leaking disc, the material leaking disc is installed in the storage bin and is arranged below the rotary disc, a plurality of first butt joint holes and second butt joint holes are circumferentially formed in the material leaking disc, the plurality of first butt joint holes are arranged on a moving path of the first material measuring hole, and the plurality of second material leaking holes are arranged on a moving path of the second material measuring hole;

each first butt joint hole is used for guiding the color masterbatch in the first material measuring hole into the funnel, and each second butt joint hole is used for guiding the main material in the second material measuring hole into the funnel.

3. The blanking device of claim 2 wherein each of said first mating holes is associated with a corresponding said second mating hole;

4. The blanking device of claim 3 wherein a line connecting a center point of each set of said first docking holes to a center point of said skip is at an angle of 3-15 ° to a line connecting a center point of said second docking holes to a center point of said skip.

5. The blanking device of claim 4, wherein the first material leaking holes and the first connecting holes are the same in number and are circumferentially staggered;

6. The blanking device according to claim 1, wherein each first material leaking hole is in a group with the corresponding second material leaking hole;

the center point of the material tray, the center point of the first material leaking hole and the center point of the second material leaking hole of each group are located on the same straight line.

7. The blanking device of claim 1 wherein the number of the color hopper is more than 3 and less than or equal to 15.

8. A3D printing wire production device is characterized by comprising the blanking device of any one of claims 1 to 7.