CN217098943U

CN217098943U - Continuous feeding device for 3D printing production

Info

Publication number: CN217098943U
Application number: CN202123427242.3U
Authority: CN
Inventors: 陈慧
Original assignee: Dongguan Huici Zhizao Printing Technology Co ltd
Current assignee: Dongguan Huici Zhizao Printing Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-08-02
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a continuous feedway for 3D prints production, including scraping the material platform, be equipped with the discharge opening on scraping the material platform, the below of scraping the material platform is equipped with horizontal material feeding unit or parallel business turn over material feeding unit or continuous business turn over material feeding unit, and horizontal material feeding unit, parallel business turn over material feeding unit or the position that the below of continuous business turn over material feeding unit corresponds the discharge opening all is equipped with blevile of push. This application has adopted the mode of the exchange material loading of horizontal type or vertical type, can exchange the different or the same printed material of supply, and this kind of feeding system can print according to the primary color of product, according to the color gradient of product, can satisfy the printing in turn of different material levels through this feeding system, and the product of printing more is close the colour of original shape article, and the effect is lifelike. The utility model discloses can deposit in appropriate amount material in the material pipe according to the in service behavior of material, can reduce and hoard too many material cost in earlier stage.

Description

Continuous feeding device for 3D printing production

Technical Field

The utility model relates to a 3D prints feedway, in particular to continuous feedway that is used for 3D to print production.

Background

The 3D printing device, also called three-dimensional printer, is a machine of additive manufacturing technology, i.e. rapid prototyping technology, which is based on a digital model file, and manufactures a three-dimensional object by printing a plurality of layers of adhesive materials using special wax, resin, powdered metal or adhesive materials such as polymer and ceramic. The printing material can be used for printing various materials, such as various plastic materials, metal materials, ceramic paste materials, sizing agents, resin materials and rubber materials.

The ceramic material has excellent mechanical properties (high strength, high hardness and high wear resistance), thermal properties (high temperature resistance, low thermal expansion coefficient and thermal shock resistance) and chemical stability, and is widely applied to the industrial fields of petrochemical industry, ferrous metallurgy, mechanical electronics, aerospace, energy environmental protection, nuclear energy, automobiles, high-temperature kilns and the like. The existing ceramic material forming method mainly comprises the following steps: the manufacturing method of the structural member comprises the following steps of extrusion forming, injection molding, isostatic pressing, tape casting and the like, wherein when the structural member is manufactured by the processes, a mold with a corresponding shape is required to be manufactured according to the shape of the structural member, and if the structure of the structural member is slightly changed, the mold needs to be manufactured again or a sample needs to be machined, so that the manufacturing cost is increased. And, subject to the limitations of the mold, these processes are suitable for the preparation of articles of simple shape. With the development of industry, these conventional molding processes have not been able to meet the requirements of some special fields. Rapid Prototyping (RP) is a new type of prototyping process that has developed rapidly in recent years. Compared with the traditional forming method, the process has the following characteristics: (1) can prepare products with complex shapes; (2) no die or model is needed to participate in the forming process, so that the process is more integrated, the manufacturing period is shortened, and the production efficiency is high; (3) the geometric shape and the size of the formed body can be changed at any time through a computer software processing system, and the design and the manufacture of a mould do not need to be waited, so that the development time of a new product is greatly shortened; (4) can prepare electronic ceramic products with tiny structures, and the like. Therefore, rapid prototyping techniques have received much attention in recent years.

One raw material is a paste material formed by stirring and mixing resin and powder materials, but the 3D printing equipment of the paste in the market can only print one material at a time, cannot print multiple materials at the same time, or cannot print different materials in the same blank, has low printing efficiency, and also limits the application of the 3D printing equipment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned defect of prior art, provide a continuous feedway for 3D prints production.

For solving the above-mentioned defect of prior art, the utility model provides a technical scheme is: the utility model provides a continuous feedway for 3D prints production, is including scraping the material platform, be equipped with the discharge opening on scraping the material platform, the below of scraping the material platform is equipped with horizontal material feeding unit or parallel business turn over material feeding unit or continuous feed arrangement, horizontal material feeding unit, parallel business turn over material feeding unit or continuous feed arrangement's below corresponds the position of discharge opening all is equipped with blevile of push, horizontal material feeding unit, parallel business turn over material feeding unit or continuous feed arrangement carry the material section of thick bamboo to the position of discharge opening during blevile of push moves the raw materials that upwards promotes in the material section of thick bamboo and extrudes from the discharge opening.

As the utility model discloses a continuous feedway's an improvement for 3D prints production, it is fast to be equipped with the piston of hugging closely in this material section of thick bamboo inside wall in the material section of thick bamboo, the lateral wall of material section of thick bamboo is equipped with the intermediate layer, be equipped with cold and hot circulation liquid in the intermediate layer. The material barrel can be preheated in the heating sleeve, can be heated to 80 ℃ from normal temperature, and can be heated to different temperatures according to different materials, so that the viscosity of the material is adjusted, and the flowing property and the coating property of the material are improved.

As the utility model discloses a continuous feedway's an improvement for 3D prints production, blevile of push is including pushing away material motor or cylinder, push away a material motor or a cylinder control fly leaf, be equipped with an at least ejector pin on the fly leaf, the quantity of ejector pin with the quantity of discharge opening is the same.

As the utility model discloses a continuous feedway's an improvement for 3D prints production, horizontal material feeding unit includes spout, slider and horizontal push motor, can put a plurality of material barrels on the slider, the slider by horizontal push motor promotes to follow spout horizontal slip, and a plurality of material barrel aligns in proper order the position feed of discharge opening, the slider corresponds the position of discharge opening is equipped with first through-hole, the ejector beam can be followed first through-hole penetrates the promotion piston piece upward movement in the material barrel.

As the utility model discloses a continuous feedway's an improvement for 3D prints production, the both ends of spout all are equipped with limit switch, the slider touches during limit switch, horizontal push motor stops to promote the slider.

As the utility model discloses a continuous feedway's an improvement for 3D prints production, parallel business turn over material feeding unit is including carrying the bottom plate, be equipped with feeding delivery track and empty section of thick bamboo ejection of compact delivery track on carrying the bottom plate, feeding delivery track and empty section of thick bamboo ejection of compact delivery track are parallel to each other, feeding delivery track with empty section of thick bamboo ejection of compact delivery track's wherein one end all is equipped with first material drive that pushes away, the one end of carrying the bottom plate is equipped with the work location platform, the work location platform corresponds the position of discharge opening is equipped with the second through-hole, one side of work location platform is equipped with the second and pushes away the material drive.

As the utility model discloses a continuous feedway's an improvement for 3D prints production, the ejector pin can be followed the second through-hole penetrates the promotion piston piece upward movement in the material section of thick bamboo.

As the utility model discloses a continuous feedway's an improvement for 3D prints production, continuous feedway includes continuous feed passageway and continuous discharging channel, be equipped with work feed passageway between continuous feed passageway and the continuous discharging channel, work feed passageway bottom corresponds the position of discharge opening is equipped with the third through-hole, the number of third through-hole with the number of discharge opening is the same.

As the utility model discloses a continuous feedway's an improvement for 3D prints production, the ejector pin can be followed the third through hole penetrates the promotion piston piece upward movement in the material section of thick bamboo.

As the utility model discloses a continuous feeding device's an improvement for 3D prints production, continuous feeding passageway carry a material section of thick bamboo when to the third through-hole position continuous feeding passageway pause feed, blevile of push promotes piston piece upward movement and extrudes the raw materials.

Compared with the prior art, the utility model has the advantages that: this application has adopted the mode of the exchange material loading of horizontal type or vertical type, can exchange the different or the same material of supply and print, and this kind of feeding system can print according to the primary color of product, according to the color gradient of product, can satisfy the printing in turn of different material levels through this feeding system, and the product of printing is more close the colour of original shape article, and the effect is lifelike. The utility model discloses can deposit in appropriate amount material in the material pipe according to the in service behavior of material, can reduce and hoard too many material cost in earlier stage.

Drawings

The invention and its advantageous technical effects are described in further detail below with reference to the accompanying drawings and embodiments, in which:

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

Fig. 2 is a schematic structural diagram of the second embodiment of the present invention.

Fig. 3 is a schematic diagram of a third structure according to an embodiment of the present invention.

Figure 4 is a cross-sectional view of the inventive cartridge.

Reference symbol names:

1. printing platform, 11, scraper;

2. a discharge hole;

3. a horizontal feeding emptying cylinder device; 31. the sliding groove 32, the sliding block 33, the horizontal pushing motor 34, the first through hole 35 and the limit switch;

4. a material pushing device; 41. a pushing motor 42, a movable plate 43 and a pushing rod;

5. a material cylinder; 51. piston block 52, sandwich;

6. the feeding device is in and out in parallel; 61. the device comprises a conveying bottom plate 62, a feeding conveying rail 63, an emptying cylinder conveying rail 64, a first pushing drive 65, a working positioning table 66, a second through hole 67, a second pushing drive 68 and an emptying cylinder drive;

7. a continuous feed device; 71. a continuous feeding channel 72, a continuous emptying cylinder channel 73, a working feeding channel 74 and a third through hole.

Detailed Description

The invention will be further described below with reference to the drawings and specific examples, but the embodiments of the invention are not limited thereto.

The first embodiment is as follows: as shown in fig. 1 and 4, a continuous feeding device for 3D printing production comprises a scraping platform 1, a discharge hole 2 is formed in the scraping platform 1, a horizontal feeding device 3 is arranged below the scraping platform 1, a pushing device 4 is arranged below the horizontal feeding device 3 and corresponds to the discharge hole, and when the horizontal feeding device 3 conveys a material cylinder 5 to the discharge hole 2, the pushing device 4 acts to push the raw material in the material cylinder 5 upwards to be extruded from the discharge hole 2. Horizontal pay-off emptying barrel device 3 includes spout 31, slider 32 and horizontal push-and-pull motor 33, can put a plurality of material barrels 5 on the slider 32, and slider 32 promotes along spout 31 horizontal slip by horizontal push motor 33, and the position feed of discharge opening 2 is aimed at in proper order to a plurality of material barrel 5, and the slider corresponds the position of discharge opening 2 and is equipped with first through-hole 34, and the ejector pin can penetrate the piston piece upward movement who promotes in the material barrel from first through-hole.

After the material cylinder 5 is conveyed to the position of the discharge hole 2 by the horizontal feeding device 3, a material pushing rod 43 of the material pushing device 4 is digitally controlled to push a piston block in the material cylinder 5 upwards, the amplitude is equal to the thickness of one layer of a printing part, raw materials in the material cylinder 5 are extruded from the discharge hole 2, a scraper scrapes the materials to a printing platform, paste or sintering molding powder is solidified and formed by a digital light source above the platform, or glue is fed by a digital glue dripping or spraying device above the platform to be bonded and formed into a layer of powder, and then the pushing and forming actions are repeated layer by layer until the printing and forming of a workpiece are completed.

Preferably, a piston block 51 closely attached to the inner side wall of the material cylinder is arranged in the material cylinder 5, an interlayer 52 is arranged on the outer side wall of the material cylinder 5, and cold and hot circulating liquid is arranged in the interlayer 52. The material barrel 5 can be preheated in the heating sleeve, can be heated to 80 ℃ from normal temperature, and can be heated to different temperatures according to different materials, so that the viscosity of the materials is adjusted, and the flowing property and the coating property of the materials are improved.

Preferably, the pushing device 4 includes a pushing motor 41 or an air cylinder, the pushing motor 41 or the air cylinder controls a movable plate 42, the movable plate 42 is provided with at least one pushing rod 43, and the number of the pushing rods 43 is the same as that of the discharging holes 2.

Preferably, both ends of the sliding chute 31 are provided with limit switches 35, and when the sliding block 32 touches the limit switches 35, the horizontal pushing motor 33 stops pushing the sliding block. When the slide block 32 moves to the position of the left limit switch, the horizontal pushing motor 33 stops the movement control in the current direction, when the material below the discharge port 2 is completely extruded, the pushing motor 33 rotates reversely to pull the empty material cylinder to the left, and the material cylinder 5b is pulled below the discharge port 2 to enter a feeding state.

When printing ceramic dental crown, the material that will print dental crown needs is put into every material cylinder 5 respectively in, and different materials in every material cylinder 5 are the mode of gradual change and arrange and put, and horizontal push motor 33 promotes material cylinder 5 in proper order according to the mode of arranging of material cylinder 5 gradual change and puts the position that enters into discharge opening 2, has printed a material at every turn and has just changed another material that needs to print, makes the 3D tooth model effect of printing more lifelike.

Example two: as shown in fig. 2 and 4, a continuous feeding device for 3D printing production includes a scraping platform 1, a discharge hole 2 is formed in the scraping platform 1, a parallel feeding and discharging device 6 is arranged below the scraping platform 1, a material pushing device 4 is arranged at a position below the parallel feeding and discharging device 6 corresponding to the discharge hole, and when the parallel feeding and discharging device 6 conveys a material cylinder 5 to the position of the discharge hole 2, the material pushing device 4 acts to push raw materials in the material cylinder 5 upwards to be extruded from the discharge hole 2. Parallel business turn over material feeding unit 6 includes conveying bottom plate 61, be equipped with feeding conveying rail 62 and empty section of thick bamboo ejection of compact conveying rail 63 on conveying bottom plate 61, feeding conveying rail 62 and empty section of thick bamboo ejection of compact conveying rail 63 are parallel to each other, feeding conveying rail 62 and the wherein one end of empty section of thick bamboo ejection of compact conveying rail 63 all are equipped with first material drive 64 that pushes away, conveying bottom plate 61's one end is equipped with work positioning table 65, the position that work positioning table 65 corresponds discharge opening 2 is equipped with second through-hole 66, one side of work positioning table 65 is equipped with the second and pushes away material drive 67. The material pushing rod 43 can penetrate through the second through hole 66 to push the piston block 51 in the material barrel 5 to move upwards, and the piston block 51 presses the material upwards to be extruded from the material outlet 2. The scraping platform 1 is provided with two discharge holes 2, the two discharge holes 2 correspond to the two material cylinders, the pushing device 4 is provided with two pushing rods 43, the two material cylinders 5 can feed simultaneously, and after the two material cylinders 5 are supplied originally, the second pushing drive 67 pushes the empty material cylinder to move to the empty cylinder discharging conveying track 63.

The first pushing drive 64 and the second pushing drive 67 may be cylinders or a pushing mode in which a motor drives a screw. The material cylinder 5 can be driven by a conveying chain or a conveying belt in the feeding conveying track 62 and the empty cylinder discharging conveying track 63.

Example three: as shown in fig. 3 and 4, a continuous feeding device for 3D printing production includes a material scraping platform 1, a discharge hole 2 is arranged on the material scraping platform 1, a continuous feeding device 7 is arranged below the material scraping platform 1, a material pushing device 4 is arranged at a position below the continuous feeding device 7 corresponding to the discharge hole, and when the material barrel 5 is conveyed to the position of the discharge hole 2 by the continuous feeding device 7, the material pushing device 4 acts to push the raw material in the material barrel 5 upwards to be extruded from the discharge hole 2. The continuous feeding device 7 comprises a continuous feeding channel 71 and a continuous discharging channel 72, a working feeding channel 73 is arranged between the continuous feeding channel 71 and the continuous discharging channel 72, a third through hole 74 is arranged at the bottom of the working feeding channel 73 corresponding to the discharging hole, the number of the third through holes 74 is the same as that of the discharging holes 2, and the continuous feeding channel 71 and the continuous discharging channel 72 can continuously convey the material barrel 5, so that production line type continuous feeding is realized.

Preferably, the pushing rod 43 can penetrate through the third through hole 74 to push the piston block 51 in the material barrel 5 to move the piston block 51 upward to press the material out of the discharging hole 2.

Preferably, when the continuous feeding channel 71 feeds the material cylinder 5 to the position of the third through hole 74, the feeding of the material cylinder is suspended in the continuous feeding channel 71, and the pushing device 4 is actuated to push the piston block 51 to move upwards to extrude the raw material. The scraping platform 1 can be provided with a plurality of discharge holes 2, the discharge holes 2 work simultaneously, and the empty material cylinder is complained by the driving mechanism when the raw material of a group of material cylinders is used up. The driving mechanism can be an endless conveying belt or an endless conveying chain structure.

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 structures of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a continuous feedway for 3D prints production, is including scraping the material platform, be equipped with the discharge opening on scraping the material platform, its characterized in that, the below of scraping the material platform is equipped with horizontal material feeding unit or parallel business turn over material feeding unit or continuous feed arrangement, horizontal material feeding unit, parallel business turn over material feeding unit or continuous feed arrangement's below corresponds the position of discharge opening all is equipped with blevile of push.

2. The continuous feeding device for 3D printing production according to claim 1, wherein a piston block tightly attached to the inner side wall of the material cylinder is arranged in the material cylinder, an interlayer is arranged on the outer side wall of the material cylinder, and cold and hot circulating liquid is arranged in the interlayer.

3. The continuous feeding device for 3D printing production according to claim 2, wherein the pushing device comprises a pushing motor or a cylinder, the pushing motor or the cylinder controls a movable plate, at least one pushing rod is arranged on the movable plate, and the number of the pushing rods is the same as that of the discharging holes.

4. The continuous feeding device for 3D printing production according to claim 3, wherein the horizontal feeding device comprises a chute, a sliding block and a horizontal pushing motor, a plurality of material barrels can be placed on the sliding block, the sliding block is pushed by the horizontal pushing motor to horizontally slide along the chute, the plurality of material barrels are sequentially aligned with the discharge hole to feed, a first through hole is formed in the position, corresponding to the discharge hole, of the sliding block, and the pushing rod can penetrate through the first through hole to push a piston block in each material barrel to move upwards.

5. The continuous feeding device for 3D printing production according to claim 4, wherein both ends of the sliding chute are provided with limit switches, and when the sliding block touches the limit switches, the horizontal pushing motor stops pushing the sliding block.

6. The continuous feeding device for 3D printing production according to claim 3, wherein the parallel feeding and discharging device comprises a conveying bottom plate, a feeding conveying rail and an empty cylinder discharging conveying rail are arranged on the conveying bottom plate and are parallel to each other, a first pushing drive is arranged at one end of each of the feeding conveying rail and the empty cylinder discharging conveying rail, a working positioning table is arranged at one end of the conveying bottom plate, a second through hole is formed in the position, corresponding to the discharging hole, of the working positioning table, and a second pushing drive is arranged at one side of the working positioning table.

7. The continuous feeding device for 3D printing production according to claim 3, wherein the continuous feeding device comprises a continuous feeding channel and a continuous discharging channel, a working feeding channel is arranged between the continuous feeding channel and the continuous discharging channel, third through holes are arranged at the bottom of the working feeding channel corresponding to the discharging holes, and the number of the third through holes is the same as that of the discharging holes.