阅读说明：本技术 一种送料通畅便于原料回收的自清理3d数码打印机 (Unobstructed 3D digital printer that clears up certainly of being convenient for raw materials recovery of pay-off ) 是由 周建伟 于 2021-08-03 设计创作，主要内容包括：本发明提供一种送料通畅便于原料回收的自清理3D数码打印机,包括3D数码打印机主体,所述3D数码打印机主体的一侧焊接有支架,所述支架的顶部焊接有横管,所述横管的顶部焊接有料斗,所述料斗的底部安装有下料阀,所述3D数码打印机主体的内侧安装有打印头,所述打印头的顶部焊接有锥桶,所述横管的一端焊接有气泵,该送料通畅便于原料回收的自清理3D数码打印机能够不需要使用过滤设备,进而防止粉末原料堵塞过滤机构,并且能够保持气流通畅,防止粉末原料堵塞送料管,能够对粉末原料的进行回收,避免材料的浪费,能够有效地对清洗后残余的水分进行烘干作业,提高清理效率,并且不需要二外增加清理设备,降低设备投入,适用于3D数码打印使用。(The invention provides a self-cleaning 3D digital printer which can smoothly feed materials and facilitate raw material recovery, and comprises a 3D digital printer main body, wherein a support is welded on one side of the 3D digital printer main body, a transverse pipe is welded on the top of the support, a hopper is welded on the top of the transverse pipe, a blanking valve is installed at the bottom of the hopper, a printing head is installed on the inner side of the 3D digital printer main body, a conical barrel is welded on the top of the printing head, and an air pump is welded at one end of the transverse pipe, so that the self-cleaning 3D digital printer which can smoothly feed materials and facilitate raw material recovery can not need to use a filtering device, further prevent powder raw materials from blocking a filtering mechanism, keep air flow smooth, prevent the powder raw materials from blocking a feeding pipe, recover the powder raw materials, avoid material waste, and effectively dry residual moisture after cleaning, the cleaning efficiency is improved, cleaning equipment does not need to be added from outside to outside, the equipment investment is reduced, and the device is suitable for 3D digital printing.)

1. The utility model provides a smooth 3D digital printer of self-cleaning of being convenient for raw materials recovery of pay-off which characterized in that: comprises a 3D digital printer main body (1), a support (3) is welded on one side of the 3D digital printer main body (1), a horizontal pipe (4) is welded on the top of the support (3), a hopper (2) is welded on the top of the horizontal pipe (4), a blanking valve (5) is installed on the bottom of the hopper (2), a printing head (6) is installed on the inner side of the 3D digital printer main body (1), a conical barrel (7) is welded on the top of the printing head (6), an air pump (8) is welded on one end of the horizontal pipe (4), a feeding pipe (9) is welded on the other end of the horizontal pipe (4), a suction pipe (10) is welded on the top of the air pump (8), a guide pipe (11) is welded on the other side of the air pump (8), scrapers (12) are installed on the inner sides of the conical barrel (7) and the hopper (2), and a clamping cover (13) is sleeved on the outer side of the suction pipe (10), solenoid valve (14) are installed to one side of air pump (8), closing plate (15) are installed at the top of awl bucket (7), all install check valve (16) on the inner wall of the one end of pipe (11) and the bottom of violently managing (4), intelligent touch panel (17) are installed through the bolt to one side of 3D digital printer main part (1).

2. The self-cleaning 3D digital printer capable of smoothly feeding materials and facilitating raw material recovery as claimed in claim 1, is characterized in that: the intelligent touch control plate (17) is connected with the 3D digital printer main body (1), the printing head (6), the air pump (8), the blanking valve (5) and the electromagnetic valve (14) through electric wires.

3. The self-cleaning 3D digital printer capable of smoothly feeding materials and facilitating raw material recovery as claimed in claim 1, is characterized in that: the top of the transverse pipe (4) is communicated with the hopper (2) through a blanking valve (5), and one end of the transverse pipe (4) is communicated with an air pump (8) through an electromagnetic valve (14).

4. The self-cleaning 3D digital printer capable of smoothly feeding materials and facilitating raw material recovery as claimed in claim 1, is characterized in that: the other end of the transverse pipe (4) is communicated with the conical barrel (7) through a feeding pipe (9), one end of the feeding pipe (9) penetrates through the conical barrel (7) and is attached to the inner wall of the conical barrel (7), and one end of the guide pipe (11) penetrates through the hopper (2) and is attached to the inner wall of the hopper (2).

5. The self-cleaning 3D digital printer capable of smoothly feeding materials and facilitating raw material recovery as claimed in claim 1, is characterized in that: scraper blade (12) are installed respectively on the inner wall of awl bucket (7) and hopper (2) through the bearing, sealed lid is installed at the top of hopper (2), sealed covering is last to install the filter screen.

6. The self-cleaning 3D digital printer capable of smoothly feeding materials and facilitating raw material recovery as claimed in claim 1, is characterized in that: the center of the top of the conical barrel (7) is provided with a through hole, and the sealing plate (15) is installed at the bottom of the through hole through a torsion spring.

7. The self-cleaning 3D digital printer capable of smoothly feeding materials and facilitating raw material recovery as claimed in claim 6, wherein: the suction pipe (10) comprises a steel suction pipe and a soft suction pipe, the bottom end of the steel suction pipe sequentially penetrates through the clamping cover (13) and the through hole and extends to the center of the conical barrel (7), the outer diameter of the suction pipe (10) is equal to the inner diameter of the through hole, and the soft suction pipe is communicated with the top of the air pump (8).

8. The self-cleaning 3D digital printer capable of smoothly feeding materials and facilitating raw material recovery as claimed in claim 1, is characterized in that: the bottom of the cone barrel (7) is integrally formed with an outer sleeve (18), and the clamping cover (13) is installed on the inner side of the outer sleeve (18) through threads.

9. The self-cleaning 3D digital printer capable of smoothly feeding materials and facilitating raw material recovery as claimed in claim 8, wherein: the top of the clamping cover (13) is integrally formed with a sealing sleeve, a screw pin is mounted on the sealing sleeve, and the clamping cover (13) is fixed on the outer side of the suction pipe (10) through the screw pin.

10. The self-cleaning 3D digital printer capable of smoothly feeding materials and facilitating raw material recovery as claimed in claim 1, is characterized in that: an internal thread is formed on the inner wall of the clamping cover (13), an external thread is formed on the outer side of the bottom of the printing head (6), and the internal thread is matched with the external thread.

Technical Field

The invention relates to the technical field of 3D digital printer equipment, in particular to a self-cleaning 3D digital printer which is smooth in feeding and convenient for raw material recovery.

Background

The 3D digital printer is a printerDigital modelDocument-based, applicationPowder ofShaped bondable material, e.g. metal or plastic, by layer-by-layerPrintingApparatuses for building objects, often used for making models in the fields of mould making, industrial design, etc., and then gradually used for the direct manufacture of some products, there are already zeros printed using this techniqueComponent partThe invention patent with the patent application number of CN201511020661.1 discloses a multi-material 3D printer, the existing 3D printer basically has the advantages of long continuous working time, high 3D printing speed, high 3D printing precision, complex 3D printing structure, firm equipment structure, long service life and the like, and can meet the use requirement of 3D printing on various products, however, for the existing 3D printer, on one hand, in order to facilitate the transportation of powdery raw materials, blowing is needed to enable the powdery raw materials to have fluidity, and then powder collecting and filtering equipment is needed to be additionally arranged at a printing head, and further cleaning equipment is needed to carry out real-time cleaning operation on a filtering device, so that the energy consumption is increased, the filtering equipment reduces the flow velocity of air flow, so that powder is easily blocked in a feeding pipe, on the other hand, after the printing operation is completed, the printing head still has a certain amount of powder raw materials, be unfavorable for retrieving it in the hopper, on the other hand, when powder raw materials need to be changed, need clear up the operation to equipment such as hopper, need increase cleaning apparatus or manual work and clear up, increase equipment input or extravagant manpower.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the self-cleaning 3D digital printer which is smooth in feeding and convenient for raw material recovery, and aims to solve the problems in the background technology.

In order to achieve the purpose, the invention is realized by the following technical scheme: a self-cleaning 3D digital printer capable of smoothly feeding materials and facilitating raw material recovery comprises a 3D digital printer body, wherein a support is welded on one side of the 3D digital printer body, a transverse pipe is welded on the top of the support, a hopper is welded on the top of the transverse pipe, a blanking valve is installed at the bottom of the hopper, a printing head is installed on the inner side of the 3D digital printer body, a conical barrel is welded on the top of the printing head, an air pump is welded at one end of the transverse pipe, a feeding pipe is welded at the other end of the transverse pipe, a suction pipe is welded at the top of the air pump, a guide pipe is welded on the other side of the air pump, scraping plates are installed on the inner sides of the conical barrel and the hopper, a clamping cover is sleeved on the outer side of the suction pipe, a solenoid valve is installed on one side of the air pump, a sealing plate is installed at the top of the conical barrel, and one end of the guide pipe and one-way valves are installed on the inner walls of the bottom of the transverse pipe, and an intelligent touch panel is installed on one side of the 3D digital printer main body through a bolt.

As a preferred embodiment of the present invention, the intelligent touch panel is connected to the 3D digital printer main body, the print head, the air pump, the discharge valve, and the electromagnetic valve through wires.

As a preferred embodiment of the present invention, the top of the horizontal tube is communicated with the hopper through a blanking valve, and one end of the horizontal tube is communicated with the air pump through an electromagnetic valve.

As a preferred embodiment of the present invention, the other end of the horizontal tube is communicated with the conical barrel through a feeding tube, one end of the feeding tube passes through the conical barrel and is attached to the inner wall of the conical barrel, and one end of the conduit passes through the hopper and is attached to the inner wall of the hopper.

In a preferred embodiment of the present invention, the scrapers are respectively mounted on the inner walls of the conical barrel and the hopper through bearings, the top of the hopper is provided with a sealing cover, and the sealing cover is provided with a filter screen.

As a preferred embodiment of the present invention, a through hole is opened at the center of the top of the conical barrel, and the sealing plate is mounted at the bottom of the through hole through a torsion spring.

As a preferred embodiment of the invention, the suction pipe comprises a steel suction pipe and a soft suction pipe, the bottom end of the steel suction pipe sequentially penetrates through the clamping cover and the through hole and extends to the center of the conical barrel, the outer diameter of the suction pipe is equal to the inner diameter of the through hole, and the soft suction pipe is communicated with the top of the air pump.

In a preferred embodiment of the present invention, the bottom of the conical barrel is integrally formed with an outer sleeve, and the clamping cover is mounted on the inner side of the outer sleeve by a screw thread.

In a preferred embodiment of the present invention, a sealing sleeve is integrally formed on a top of the card cover, a screw pin is mounted on the sealing sleeve, and the card cover is fixed to an outer side of the suction tube by the screw pin.

As a preferred embodiment of the present invention, the inner wall of the card cover is provided with an internal thread, the outer side of the bottom of the print head is provided with an external thread, and the internal thread is matched with the external thread.

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

1. the smooth self-cleaning 3D digital printer facilitating raw material recovery is used, when 3D printing is carried out, powder raw materials are loaded into a hopper and a sealing cover is covered, all electric equipment is controlled to work through an intelligent touch control board, a blanking valve enables the powder raw materials in the hopper to fall into a transverse pipe, an air pump sucks air through a suction pipe and enables air to be respectively introduced into the hopper and the transverse pipe through a guide pipe and an electromagnetic valve under the action of centrifugal force, on one hand, the guide pipe is utilized to ventilate the hopper, the powder raw materials are prevented from being accumulated in the hopper, smooth blanking is guaranteed, on the other hand, the powder raw materials in the transverse pipe of an airflow belt are conveyed into a conical barrel through a conveying pipe, the powder raw materials fall in the conical barrel in a rotating mode, the air returns into the air pump through the suction pipe, even if a small amount of the powder raw materials are sucked through the suction pipe, the air pump can also return into the conical barrel or the hopper, need not use filtration equipment, and then the effectual powder raw materials that prevents blocks up filter mechanism to can keep the air current unobstructed, prevent that powder raw materials from blockking up the conveying pipe.

2. This unobstructed 3D digital printer of self-cleaning of being convenient for raw materials recovery of pay-off is when using, after printing the completion, certain powder raw materials is retained in the awl bucket, unscrew the spiral shell round pin on the card cover, insert the straw to the bottom of awl bucket, make the bottom of straw extend to the interior bottom of awl bucket, the solenoid valve is closed again, air pump work produces suction to the straw, make the air get into in the violently pipe through the check valve of the bottom of violently managing, the rethread conveying pipe blows to the awl bucket in, utilize the air current to blow the scraper blade in the awl bucket and scrape the raw materials on the awl bucket inner wall, rethread suction pipe send into the hopper in the powder raw materials suction air pump in the awl bucket in the pipe through the pipe, can be with the awl bucket, the whole retrieves of raw materials in violently pipe and the conveying pipe, so that retrieve the powder raw materials before when changing the raw materials again, avoid the waste of material.

3. This unobstructed 3D digital printer of self-cleaning of being convenient for raw materials recovery of pay-off is when using, when needs change the raw materials, need to the hopper, awl bucket etc. clear up, pour into certain moisture into in the hopper, will block the cover and twist out in the overcoat, extract the straw from the awl bucket, the automatic top that will bore the bucket of closing plate is sealed, the unloading valve falls moisture in the violently pipe, the air pump blows moisture through the air current, let in moisture and air current in the awl bucket through the conveying pipe, utilize the air current to improve the flow velocity of moisture, moisture and air current blow the scraper blade in the awl bucket, make the rotation that utilizes the scraper blade clear up the raw materials of awl bucket inner wall, the air pump blows in the hopper through the pipe simultaneously, make the air current blow scraper blade and the moisture rotation in the hopper, clear up in the hopper, moisture rethread unloading valve after the clearance is to violently managing. The conveying pipe, the moisture that the awl bucket and beat printer head and wash after accomplishing the washing flows through beating printer head, connect it away through external container, again with cutting ferrule cover in the bottom of beating printer head, open the firing equipment in the printer head, the air is heated when beating printer head, it is hot-blast to produce, it is hot-blast in the straw gets into the air pump to be hot-blast, the rethread goes into the hopper and violently manages, hot-blast in the violently pipe gets into the awl bucket through the conveying pipe, and then can dry the operation effectively to wasing remaining moisture in back, the cleaning efficiency is improved, and do not need additionally to increase cleaning equipment, reduce the equipment input.

Drawings

FIG. 1 is a schematic structural diagram of a self-cleaning 3D digital printer with smooth feeding and convenient raw material recovery according to the invention;

FIG. 2 is a cross-sectional view of a self-cleaning 3D digital printer with smooth feeding and convenient raw material recovery according to the invention;

FIG. 3 is a cross-sectional view of an air pump of the self-cleaning 3D digital printer with smooth feeding and convenient raw material recovery according to the invention;

FIG. 4 is a cross-sectional top view of a hopper of the self-cleaning 3D digital printer with smooth feeding and convenient raw material recovery according to the invention;

FIG. 5 is a cross-sectional view of a card cover of the self-cleaning 3D digital printer with smooth feeding and convenient raw material recovery according to the invention;

in the figure: 1. a 3D digital printer body; 2. a hopper; 3. a support; 4. a transverse tube; 5. a discharge valve; 6. a print head; 7. a conical barrel; 8. an air pump; 9. a feed pipe; 10. a straw; 11. a conduit; 12. a squeegee; 13. a clamping cover; 14. an electromagnetic valve; 15. a sealing plate; 16. a one-way valve; 17. an intelligent touch pad; 18. and (4) coating.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Referring to fig. 1 to 5, the present invention provides a technical solution: a self-cleaning 3D digital printer capable of smoothly feeding materials and facilitating raw material recovery comprises a 3D digital printer main body 1, wherein a support 3 is welded on one side of the 3D digital printer main body 1, a transverse pipe 4 is welded on the top of the support 3, a hopper 2 is welded on the top of the transverse pipe 4, a blanking valve 5 is installed at the bottom of the hopper 2, a printing head 6 is installed on the inner side of the 3D digital printer main body 1, a conical barrel 7 is welded on the top of the printing head 6, an air pump 8 is welded at one end of the transverse pipe 4, a feeding pipe 9 is welded at the other end of the transverse pipe 4, a suction pipe 10 is welded on the top of the air pump 8, a guide pipe 11 is welded on the other side of the air pump 8, scraping plates 12 are installed on the inner sides of the conical barrel 7 and the hopper 2, a clamping cover 13 is sleeved on the outer side of the suction pipe 10, and an electromagnetic valve 14 is installed on one side of the air pump 8, the sealing plate 15 is installed at the top of awl bucket 7, all install check valve 16 on the inner wall of the one end of pipe 11 and the bottom of violently managing 4, intelligent touch-control board 17 is installed through the bolt in one side of 3D digital printer main part 1, and the powder raw materials in the awl bucket 7 gets into and beats printer head 6 in, carries out the quantitative print operation of fixed point to required position under 3D digital printer main part 1 drives after the hot melt.

In a preferred embodiment of the present invention, the intelligent touch panel 17 is connected to the 3D digital printer body 1, the print head 6, the air pump 8, the discharging valve 5 and the electromagnetic valve 14 through wires.

In a preferred embodiment of the present invention, the top of the horizontal tube 4 is connected to the hopper 2 through a discharge valve 5, one end of the horizontal tube 4 is connected to an air pump 8 through an electromagnetic valve 14, and the discharge valve 5 drops the powder raw material in the hopper 2 into the horizontal tube 4.

As a preferred embodiment of the present invention, the other end of the transverse tube 4 is communicated with the conical barrel 7 through a feeding tube 9, one end of the feeding tube 9 passes through the conical barrel 7 and is attached to the inner wall of the conical barrel 7, one end of the conduit 11 passes through the hopper 2 and is attached to the inner wall of the hopper 2, the air pump 8 sucks air through the suction tube 10, and under the action of centrifugal force, the air is respectively introduced into the hopper 2 and the transverse tube 4 through the conduit 11 and the electromagnetic valve 14, on one hand, the conduit 11 is utilized to ventilate the hopper 2, so as to prevent powder raw materials from being accumulated in the hopper 2 and ensure smooth discharging, and on the other hand, the powder raw materials in the transverse tube 4 of the airflow belt are sent into the conical barrel 7 through the feeding tube 9.

In a preferred embodiment of the present invention, the scrapers 12 are mounted on the inner walls of the conical barrel 7 and the hopper 2 through bearings, respectively, and a sealing cover is mounted on the top of the hopper 2, and a filter screen is mounted on the sealing cover to prevent the raw material powder from being blown out by the air flow of the duct 11.

In a preferred embodiment of the present invention, a through hole is opened at the center of the top of the conical barrel 7, and the sealing plate 15 is mounted at the bottom of the through hole by a torsion spring.

As a preferred embodiment of the present invention, the suction pipe 10 includes a steel suction pipe and a soft suction pipe, the bottom end of the steel suction pipe sequentially passes through the card cover 13 and the through hole and extends to the center of the conical barrel 7, the outer diameter of the suction pipe 10 is equal to the inner diameter of the through hole, the soft suction pipe is communicated with the top of the air pump 8, the powder raw material rotates and falls in the conical barrel 7, air returns to the air pump through the suction pipe 10, even if a small amount of powder raw material is sucked through the suction pipe 10, the powder raw material can be returned to the conical barrel 7 or the hopper 2 through the air pump 8, no filtering equipment is needed, the powder raw material is effectively prevented from blocking the filtering mechanism, the air flow is kept smooth, and the powder raw material is prevented from blocking the feeding pipe 9.

In a preferred embodiment of the present invention, an outer sleeve 18 is integrally formed at the bottom of the conical barrel 7, and the snap cover 13 is screwed on the inner side of the outer sleeve 18.

As a preferred embodiment of the present invention, a sealing sleeve is integrally formed on the top of the card cover 13, a screw pin is installed on the sealing sleeve, the card cover 13 is fixed on the outer side of the suction pipe 10 through the screw pin, after printing is completed, a certain amount of powder raw material is left in the conical barrel 7, the screw pin on the card cover 13 is unscrewed, the suction pipe 10 is inserted into the bottom of the conical barrel 7, so that the bottom end of the suction pipe 10 extends to the bottom in the conical barrel 7, the electromagnetic valve 14 is closed, the air pump 8 is operated to generate suction force to the suction pipe 10, so that air enters the transverse pipe 4 through the one-way valve 14 at the bottom of the transverse pipe 4, is blown into the conical barrel 7 through the feeding pipe 9, the scraper 12 in the conical barrel 7 is blown by air flow to scrape the raw material on the inner wall of the conical barrel 7, the powder raw material in the conical barrel 7 is sucked into the air pump 8 through the suction pipe 10 and then is fed into the hopper 2 through the guiding pipe 11, and the raw materials in the conical barrel 7, the transverse pipe 4 and the feeding pipe 9 can be completely recovered, so as to recycle the previous powder raw material when the raw material is replaced, and avoid the waste of materials.

As a preferred embodiment of the present invention, an inner thread is formed on an inner wall of the card cover 13, an outer thread is formed on an outer side of a bottom of the printing head 6, the inner thread is matched with the outer thread, the card cover 13 is sleeved at the bottom of the printing head 6, a heating device in the printing head 6 is turned on, air is heated when passing through the printing head 6 to generate hot air, the hot air enters the air pump 8 through the suction pipe 10 and then enters the hopper 2 and the horizontal pipe 4, the hot air in the horizontal pipe 4 enters the conical barrel 7 through the feeding pipe 9, and therefore, residual moisture after cleaning can be effectively dried, cleaning efficiency is improved, additional cleaning devices are not required, and device investment is reduced.

The self-cleaning 3D digital printer with smooth feeding and convenient raw material recovery supplies electric energy to all electric equipment through an external power supply, when in use, the powder raw materials are loaded into a hopper 2 when 3D printing is carried out, a sealing cover is covered, all electric equipment is controlled to work through an intelligent touch control plate 17, a blanking valve 5 drops the powder raw materials in the hopper 2 into a transverse pipe 4, an air pump 8 sucks air through a suction pipe 10, and under the action of centrifugal force, the air is respectively introduced into the hopper 2 and the transverse pipe 4 through a guide pipe 11 and an electromagnetic valve 14, on one hand, the guide pipe 11 is utilized to ventilate the hopper 2, the powder raw materials are prevented from being accumulated in the hopper 2, the blanking is smooth, on the other hand, the powder raw materials in the transverse pipe 4 of an airflow belt are sent into a conical barrel 7 through a feeding pipe 9, the powder raw materials fall in the conical barrel 7 in a rotating manner, and the air returns into the air pump through the suction pipe 10, even if a small amount of powder raw materials are sucked through the suction pipe 10, the powder raw materials can be returned to the cone barrel 7 or the hopper 2 through the air pump 8 without using a filtering device, so that the powder raw materials can be effectively prevented from blocking a filtering mechanism, the air flow can be kept smooth, the powder raw materials can be prevented from blocking the feeding pipe 9, the powder raw materials in the cone barrel 7 can enter the printing head 6, the required position can be printed in a fixed-point and quantitative mode under the driving of the 3D digital printer main body 1 after hot melting, certain powder raw materials can be reserved in the cone barrel 7 after printing is completed, the screw pin on the clamping cover 13 is unscrewed, the suction pipe 10 is inserted into the bottom of the cone barrel 7, the bottom end of the suction pipe 10 extends to the inner bottom of the cone barrel 7, the electromagnetic valve 14 is closed again, the air pump 8 is used for generating suction to the suction pipe 10, air can enter the transverse pipe 4 through the one-way valve 14 at the bottom of the transverse pipe 4 and then can be blown into the cone barrel 7 through the feeding pipe 9, the raw materials on the inner wall of the conical barrel 7 are scraped off by blowing the scraper 12 in the conical barrel 7 through air flow, the powder raw materials in the conical barrel 7 are sucked into the air pump 8 through the suction pipe 10 and then are sent into the hopper 2 through the guide pipe 11, the raw materials in the conical barrel 7, the transverse pipe 4 and the feeding pipe 9 can be completely recovered, so that the previous powder raw materials can be recovered when the raw materials are replaced, the waste of materials is avoided, when the raw materials need to be replaced, the hopper 2, the conical barrel 7 and the like need to be cleaned, certain moisture is injected into the hopper 2, the clamping cover 13 is screwed out from the outer sleeve 18, the suction pipe 10 is pulled out from the conical barrel 7, the top of the conical barrel 7 is automatically sealed by the sealing plate 15, the moisture falls into the transverse pipe 4 through the blanking valve 5, the air pump 8 blows the moisture through the air flow, the moisture and the air flow are introduced into the conical barrel 7 through the feeding pipe 9, the flow speed of the moisture is improved through the air flow, the moisture and the scraper 1 in the conical barrel 9 is blown by the moisture and the air flow, the raw materials on the inner wall of the conical barrel 7 are cleaned by the rotation of the scraper 12, meanwhile, the air pump 8 blows air into the hopper 2 through the guide pipe 11, so that the air flow blows the scraper 12 and moisture in the hopper 2 to rotate, the hopper 2 is cleaned, the cleaned moisture cleans the transverse pipe 4, the feeding pipe 9, the conical barrel 7 and the printing head 6 through the blanking valve 5, the cleaned moisture flows out through the printing head 6 and is connected away through the external container, the sleeve 13 is sleeved at the bottom of the printing head 6, the heating equipment in the printing head 6 is opened, the air is heated when passing through the printing head 6 to generate hot air, the hot air enters the air pump 8 through the suction pipe 10 and then enters the hopper 2 and the transverse pipe 4, the hot air in the transverse pipe 4 enters the conical barrel 7 through the feeding pipe 9, the residual moisture after cleaning can be effectively dried, and the cleaning efficiency is improved, and no extra cleaning equipment is needed, and the equipment investment is reduced.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.