CN212821369U - A beat printer head self-cleaning and sweep device for building 3D prints - Google Patents

Abstract

The utility model provides a beat printer head self-cleaning device that sweeps for building 3D prints, include: the printing head comprises a bin and a printing head discharge port arranged at the bottom end of the bin, and a space for accommodating printing materials is formed inside the bin; the high-pressure water supply device is connected with a first coil pipe and a second coil pipe, the first coil pipe and the second coil pipe are fixed in the storage bin, the first coil pipe and the second coil pipe are annularly provided with a plurality of first nozzles, and the second coil pipe is annularly provided with a plurality of second nozzles facing the inner wall of the storage bin; compressed air feeding device, be connected with the third coil pipe on the compressed air feeding device, the third coil pipe is the annular and is fixed in the feed bin, be the annular on the third coil pipe and arrange a plurality of orientations the third nozzle of the inner wall of feed bin. The utility model discloses the device can in time wash and weather the feed bin inner wall, has guaranteed the security of cleaning process simultaneously.

Description

A beat printer head self-cleaning and sweep device for building 3D prints

Technical Field

The utility model relates to a construction technical field relates to a beat printer head self-cleaning and sweep device for building 3D prints particularly.

Background

3D printing is a machine that utilizes an additive manufacturing technique, i.e., a rapid prototyping technique. The 3D printing technology is a technology for manufacturing a three-dimensional object by printing a layer-by-layer adhesive material, i.e., by using a layer-by-layer printing method, based on a digital model file, using the adhesive material as a printing material.

The building concrete 3D print head device generally comprises: power device (motor, reducer, frequency converter, etc.), stirring shaft (screw conveying rod), charging basket, discharging pipe (variable diameter, variable cross section), concrete feeding pipeline, etc.

The printing material for building 3D printing has the characteristics of fast hardening and early strength, good bonding performance, strong volume stability, good pump-out form retention capacity and capability of meeting the working characteristics of building 3D printing continuous printing. Because the printing material has the characteristic of short initial setting time, the material in the printing barrel generates heat along with stirring friction and the material per se hydrates and releases heat during printing, and the material can generate hydration heat, so that the material becomes hot and hardens, and the phenomena of pipe blockage and the like are easy to occur; after printing, the problem that a printing head charging basket and a discharging pipe are rapidly and timely cleaned is also very troublesome.

After printing, the operator manually cleans the printing head and the residual printing material in the printing barrel, manually washes the components by using high-pressure water, and naturally dries or directly uses the components after cleaning. However, the residual moisture on the parts has a certain influence on the printing material used in the next step, and the influence of the small residual moisture is considered in the material ratio. Meanwhile, water splashes on the electrical elements in the washing process, which is not beneficial to the protection of the electrical elements and has certain danger. The washing process is time-consuming and labor-consuming, and the automation degree is lower.

SUMMERY OF THE UTILITY MODEL

In view of the above situation, the utility model provides a beat printer head self-cleaning and sweep device for building 3D prints solves current and beats printer head belt cleaning device and wash untimely and have dangerous defect in the cleaning process.

In order to achieve the purpose, the utility model adopts the technical proposal that: provided is a beat printer head self-cleaning purging device for building 3D printing, includes:

the printing head comprises a bin and a printing head discharge port arranged at the bottom end of the bin, and a space for accommodating printing materials is formed inside the bin;

the high-pressure water supply device is connected with a first coil pipe and a second coil pipe, the first coil pipe and the second coil pipe are fixed in the storage bin, a plurality of first nozzles are annularly arranged on the first coil pipe, and a plurality of second nozzles facing the inner wall of the storage bin are annularly arranged on the second coil pipe;

compressed air feeding device, be connected with the third coil pipe on the compressed air feeding device, the third coil pipe is the annular and is fixed in the feed bin, be the annular on the third coil pipe and arrange a plurality of orientations the third nozzle of the inner wall of feed bin.

The embodiment of the utility model provides an in, first coil pipe the second coil pipe reaches the third coil pipe is the concentric circles setting, first coil pipe the second coil pipe reaches the diameter order increase of third coil pipe.

In the embodiment of the present invention, the first coil pipe and the second coil pipe are respectively a water injection coil pipe and a flushing coil pipe.

In the embodiment of the utility model, first nozzle orientation the axis setting of feed bin.

In the embodiment of the utility model provides an in, the second nozzle is the autogiration nozzle.

In the embodiment of the utility model, high pressure water feeding device includes the water tank, be connected with the outlet pipe on the water tank, on the outlet pipe intercommunication have respectively with first coil pipe first branch pipe, the second branch pipe of second coil pipe intercommunication.

In the embodiment of the utility model, a spiral stirring shaft is arranged in the bin, the bottom end of the spiral stirring shaft extends into the discharge port of the printing head, and the top of the bin is provided with a perforation; the top of the storage bin is provided with a driving mechanism, and the driving mechanism is in driving connection with the spiral stirring shaft through the through hole.

In the embodiment of the utility model provides an in, be equipped with in the feed bin with the pole is scraped to the fixed wall of spiral stirring shaft, the pole is scraped to the wall is hollow frame structure.

The utility model discloses owing to adopted above technical scheme, make it have following beneficial effect:

the utility model is used for building beat printer head self-cleaning and sweep device can wash and blow dry after washing in time inside the feed bin after printing, avoids the proportion of residual moisture influence printing material on next step, can avoid simultaneously on the washing in-process water splash electric elements, has guaranteed the security of cleaning process.

Drawings

Fig. 1 is the utility model discloses a beat printer head self-cleaning purging device's for building 3D prints structural schematic diagram.

Fig. 2 is a schematic plan view of the first coil, the second coil and the third coil according to the present invention.

The correspondence of reference numerals to components is as follows:

a print head 1; a storage bin 11; a print head discharge port 12; a spiral stirring shaft 13; a drive mechanism 14; a motor 141; a speed reducer 142; a wall scraping bar 15; an injection port 16; an overflow port 17; a high-pressure water supply device 2; a first coil 21; the first nozzle 211; a second coil 22; a second nozzle 221; a water tank 23; a water outlet pipe 24; a first branch tube 241; a second branch pipe 242; a ball valve 243; a butterfly valve 344; a filter 245; an expansion joint 246; a booster pump 247; a check valve 248; a waste water ditch 249; a compressed air supply device 3; a third coil 31; the third nozzle 311; a fan 32; an air filter unit 33; a pulse damper 34.

Detailed Description

To facilitate understanding of the present invention, the following description is made with reference to the accompanying drawings and examples.

Referring to fig. 1 and 2, the present invention provides a self-cleaning purging device for printing head of 3D printing in building, including: the utility model discloses a printer head self-cleaning blowing device for building 3D printing starts high pressure water supply device 2 and compressed air supply device 3 after printing and can in time wash and blow dry printer head 1, and quick, in time clear up the remaining printing material in the printer head, degree of automation is high, and can reduce the remaining moisture in the printer head through blowing dry, the influence on printing materials used in the next step is avoided, and meanwhile, the cleaning is carried out in the printing head, so that the protection of electric elements is facilitated, and the construction safety is ensured.

Specifically, the printing head 1 comprises a bin 11 and a printing head discharge port 12 arranged at the bottom end of the bin, and a space for accommodating printing materials is formed inside the bin 11;

specifically, the upper portion of the storage bin 11 is a cylinder, the lower portion is conical to facilitate discharging, and the printing head discharge port 12 is formed by a slender cylinder.

The inside of feed bin 11 is equipped with spiral (mixing) shaft 13, spiral (mixing) shaft 13 can make printing material misce bene on the one hand, on the other hand can avoid the local too high of temperature in the feed bin 11, spiral (mixing) shaft 13's bottom extends to in beating printer head discharge gate 12, spiral (mixing) shaft 13's upper portion is located feed bin 1, spiral (mixing) shaft 13's lower part is located and beats printer head discharge gate 12, spiral (mixing) shaft 13's upper portion's helical blade's size is greater than spiral (mixing) shaft 13's lower part's helical blade's size, make the printing material that beats printer.

The top of the bin 11 is provided with a through hole; the top of the silo 11 is provided with a driving mechanism 14, and the driving mechanism 14 is in driving connection with the spiral stirring shaft 13 through a perforation. The driving mechanism 14 comprises a motor 141 and a speed reducer 142, and the speed reducer 142 is arranged to change the rotation frequency of the motor 141, so as to avoid the temperature rise of the printing material caused by the excessively high stirring speed of the spiral stirring shaft 13.

The printing material that holds in the feed bin 11 can take place to pile up on the internal face of feed bin 11 at the rotatory stirring in-process of helical stirring shaft 13, if not clear up, piles up printing material on the internal face of feed bin and can more and more, also can influence the printing effect. A wall scraping rod 15 fixed with the spiral stirring shaft 13 is further arranged in the bin 11, the wall scraping rod 15 drives the wall scraping rod 15 to rotate in the bin 11 along with the rotation of the spiral stirring shaft 13, and the printing material on the inner wall surface of the bin 11 is scraped, so that the printing material is prevented from being accumulated on the inner wall surface of the bin 11 more and more along with the printing; preferably, the wall scraping rod 15 is of a hollow frame structure, and the hollow frame structure can reduce resistance in the stirring process to the maximum extent; the inclined rod can be arranged in the hollow frame of the wall scraping rod according to requirements, and the inclined rod can also play a role in stirring printing materials. The outer contour dimension of the wall scraping rod 213 is matched with the shape of the storage bin 11, and the gap between the wall scraping rod and the inner wall of the storage bin 11 is larger than the dimension of the material aggregate; the number can be set to be single arm or multi-arm according to material properties.

The embodiment of the utility model provides an in, feed bin 11 is connected with feeding system (not shown) through the inlet pipe, supplies printed material in to feed bin 11 through feeding system, and further, feed bin 11's upper portion is equipped with sprue 16 and overflow mouth 17, and feeding system passes through sprue 16 and injects printed material in to feed bin 11, when printed material is full of feed bin 11, can flow out through overflow mouth 17 to the staff in time discovers and stops annotating the material.

The high-pressure water supply device 2 is connected with a first coil pipe 21 and a second coil pipe 22, the first coil pipe 21 and the second coil pipe 22 are fixed in the storage bin 11, the first coil pipe 21 is annularly provided with a plurality of first nozzles 211, and the second coil pipe 22 is annularly provided with a plurality of second nozzles 221 facing the inner wall of the storage bin 11.

In the embodiment of the present invention, the first coil 21, the second coil 22 and the third coil 31 are arranged in concentric circles, and the diameters of the first coil 21, the second coil 22 and the third coil 31 are sequentially increased; further, the above-mentioned coils may be arranged in a plane, if space and installation permit, or may be arranged vertically (axially), this arrangement not being limiting, as long as it is ensured that the nozzles do not interfere with each other as far as possible.

The embodiment of the utility model provides an in, first coil pipe 21, second coil pipe 22 and third coil pipe 23 all are located the headspace of feed bin and are located the wall and scrape on the pole 13, avoid the wall to scrape pole 13 and produce the scraping with first coil pipe 21, second coil pipe 22 and third coil pipe 23 when rotating.

In the embodiment of the present invention, the first coil 21 and the second coil 22 are a water injection coil and a flushing coil, respectively, and specifically, the water injection coil is used for feeding the printing material in the feeding bin 11 with water as required according to the status requirement of the printing material, so as to ensure the fluidity, humidity and temperature of the printing material; preferably, the first nozzle 211 is arranged towards the central axis of the silo 11; the washing coil pipe sprays high-pressure water through the second nozzle 221 to wash the inner wall of the storage bin 11, and meanwhile, the second nozzle is an automatic rotating nozzle and can rotate automatically around a mounting point, so that multi-angle washing is achieved.

The embodiment of the utility model provides an in, high pressure water supply device 2 includes water tank 23, is connected with outlet pipe 24 on the water tank 23, and the intercommunication has first branch pipe 241, the second branch pipe 242 with first coil pipe 21, second coil pipe 21 intercommunication respectively on the outlet pipe 24. Specifically, the water outlet pipe 24 is provided with a butterfly valve 244, a filter 245, an expansion joint 246, a booster pump 247 and a check valve 248, the expansion joint 246 is located at two sides of the booster pump 247, and the first branch pipe 241 and the second branch pipe 242 are respectively provided with a butterfly valve, a temperature control valve and an electromagnetic valve; the outlet end of the filter 245 is connected to a waste water ditch 249 through a pipeline, and a ball valve 243 is arranged on the pipeline; the water tank 23 is connected with a drain pipe, the outlet end of the drain pipe is connected to another waste water ditch 249, and the drain pipe is provided with a ball valve 243.

Furthermore, an overflow port is arranged at the upper water level of the water tank 23 to prevent the water tank from being full and overflowing; besides the booster pump 247, a standby pump can be arranged for one use and one standby to prevent the use from being influenced when one pump fails; since the booster pump 247 has vibration during operation, the expansion joint 246 is provided at the inlet/outlet of the booster pump 247, which can reduce the damage of the vibration to the pipes; the butterfly valve 244 and the ball valve 243 are opened to ensure the pipeline circulation of water, and the closing is to block the circulation of water; the check valve 248 functions to prevent the reverse flow of water; a filter 245 is arranged in front of the booster pump 247, the filter 245 ensures water quality, protects the booster pump 247, filters out impurities, and discharges the filtered water to a waste water ditch 249; a check valve 248 is arranged behind the booster pump 247 to prevent liquid from flowing back after the pump is stopped; the high-pressure water pump is divided into two paths after pumping out the water outlet pipe 24, one path is supplied to the first coil pipe 21 through the first branch pipe 241, the other path is supplied to the second coil pipe through the second branch pipe 242, and a butterfly valve is arranged on each branch pipe, so that each branch pipe can independently control the on/off of the physical state of the branch pipe; the temperature control valve controls the water supply temperature to prevent the water temperature from exceeding a specified temperature value; the electromagnetic valve controls the on/off of the pipeline through a remote control signal, and the on/off of the pipeline is automatically controlled in a remote mode.

The compressed air supply device 3 is connected with a third coil pipe 31, the third coil pipe 31 is fixed in the silo 11 in an annular shape, and a plurality of third nozzles 311 facing the inner wall of the silo 11 are annularly arranged on the third coil pipe 31.

The embodiment of the utility model provides an in, compressed air feeding device 3 includes fan 32, air filter unit 33 and pulse damper 34, is connected with air filter unit 33 and pulse damper 34 between fan 32's output and third coil 31. As shown in FIG. 1, the air filtering unit comprises a pressure reducing valve, a filtering valve, an electromagnetic directional valve and a ball valve from left to right. The pulse damper 34 is used to ensure the stability of the air pressure and to ensure the continuity of the supply of origin; the pressure reducing valve of the air filtering unit is used for realizing pressure control and ensuring the pressure required by the blowing work; the filter valve is mainly used for filtering moisture/oil gas and the like in an air source, and the electromagnetic directional valve realizes the remote control on/off of compressed air.

The utility model discloses an in the preferred embodiment, still include with high pressure water supply device reaches the remote control platform that compressed air supply device electricity is connected, through remote control platform remote control high pressure water supply device and compressed air supply device's start-up and closing can realize automatic water injection, wash, sweep, air-dry technology demand such as, sparingly beat processes such as printer head dismouting, artifical washing, save labour time, alleviate intensity of labour, improve labor efficiency.

The present invention has been described in detail with reference to the drawings and the embodiments, and those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details of the embodiments should not be construed as limitations of the invention, which are intended to be covered by the following claims.

Claims (8)

1. A beat printer head self-cleaning device that sweeps for building 3D prints, characterized in that includes:

the printing head comprises a bin and a printing head discharge port arranged at the bottom end of the bin, and a space for accommodating printing materials is formed inside the bin;

the high-pressure water supply device is connected with a first coil pipe and a second coil pipe, the first coil pipe and the second coil pipe are fixed in the storage bin, a plurality of first nozzles are annularly arranged on the first coil pipe, and a plurality of second nozzles facing the inner wall of the storage bin are annularly arranged on the second coil pipe;

compressed air feeding device, be connected with the third coil pipe on the compressed air feeding device, the third coil pipe is the annular and is fixed in the feed bin, be the annular on the third coil pipe and arrange a plurality of orientations the third nozzle of the inner wall of feed bin.

2. The printing head self-cleaning purging device for building 3D printing according to claim 1, wherein the first coil, the second coil and the third coil are arranged in concentric circles, and the diameters of the first coil, the second coil and the third coil are sequentially increased.

3. The printing head self-cleaning purging device for building 3D printing according to claim 1, wherein the first coil and the second coil are a water injection coil and a flushing coil, respectively.

4. The printing head self-cleaning purging device for building 3D printing according to claim 3, wherein the first nozzle is disposed toward a central axis of the storage bin.

5. A printhead self-purging device for building 3D printing according to claim 3, wherein the second nozzle is an auto-rotating nozzle.

6. A printing head self-cleaning purging device for building 3D printing according to claim 1, wherein the high-pressure water supply device comprises a water tank, a water outlet pipe is connected to the water tank, and a first branch pipe and a second branch pipe which are respectively communicated with the first coil pipe and the second coil pipe are communicated to the water outlet pipe.

7. The printing head self-cleaning purging device for building 3D printing according to claim 1, wherein a spiral stirring shaft is arranged inside the bin, the bottom end of the spiral stirring shaft extends into the printing head discharge port, and a through hole is formed in the top of the bin; the top of the storage bin is provided with a driving mechanism, and the driving mechanism is in driving connection with the spiral stirring shaft through the through hole.

8. The printing head self-cleaning purging device for building 3D printing according to claim 7, wherein a wall scraping rod fixed with the spiral stirring shaft is arranged in the storage bin, and the wall scraping rod is of a hollow frame structure.

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