CN205443253U - Bio -printer - Google Patents

Abstract

The utility model relates to a bio -printer, including shower nozzle (1), connecting piece (2) and have the bioprinting material container and the conveyor of discharging pipe (3), conveyor is used for following the bioprinting material bioprinting material container carries shower nozzle (1), the first end of connecting piece (2) with discharging pipe (3) threaded connection, the second end detachably of connecting piece (2) connects two complex mode of pluging is compared in prior art in shower nozzle (1), only needs screw out bioprinting material container to realize quick replacement for it is very convenient to add the bioprinting material, easily with the whole problem of extracting and destroy temperature environment of connecting piece, has higher reliability when having avoided changing the container in the past.

Description

Biometric print machine

Technical field

This utility model relates to biometric print field, particularly relates to a kind of biometric print machine.

Background technology

Biological 3D prints principle and the method referring to be printed by 3D, biomaterial (including natural biologic material and synthesising biological material or cell solution) is printed and becomes the three-dimensional structure of design, it is different from common 3D printing technique, biological tissue or organ that biological 3D printing technique produces also have certain biological function, the further growth being required to be cell and tissue provides condition, just because of above-mentioned characteristic, biological 3D printing technique, in development, is faced with a lot of specific technical problem.

Wherein, field is printed at biological 3D, cell is referred to as cell three-dimensional printing technique as the technology of printed material, people can utilize cell and biocompatible materials to make biological prepared Chinese ink, shower nozzle moves and is sprayed by biology prepared Chinese ink, moved by programme-control shower nozzle, biological prepared Chinese ink is built mathematical model printing shaping according to the three-dimensional of default target print object.

It is in place of the deficiencies in the prior art:

Existing biometric print machine generally uses fast inserting structure to connect shower nozzle and printed material container; shower nozzle and printed material container are filled in and be plugged in fast inserting structure two ends the most closely; such attachment structure poor stability; fast inserting structure generally also need to other pipe with the use of; it is unfavorable for that the temperature of printed material controls, and is required for bigger working place when dismounting.

Utility model content

For overcoming above technological deficiency, this utility model solves the technical problem that and is to provide a kind of biometric print machine, it is possible to realizes the quick-replaceable of biometric print containers, has preferable connective stability and heat-insulating property.

For solving above-mentioned technical problem, this utility model provides a kind of biometric print machine, including shower nozzle, connector and the biometric print containers with discharge nozzle and conveyer device, described conveyer device is for being transported to described shower nozzle by biometric print material from described biometric print containers, first end of described connector is threadeded with described discharge nozzle, the second detachably connected described shower nozzle of end of described connector.

Further, the port of export of described discharge nozzle is provided with the first external screw thread, described first end of described connector is provided with the first receiving chamber for accommodating the described port of export, described first accommodates intracavity is provided with the first female thread coordinated with described first external screw thread, and the described port of export is sheathed on and is threadedly coupled to state in described first end of connector.

Further, the described first section intercepted along the second extreme direction towards described connector accommodating chamber is tapered.

Further, the described first described section accommodating chamber is taper.

First step ground, the tapering of described taper is 6%.

Further, also including mounting blocks, described shower nozzle is detachable and is non-rotatably mounted on described mounting blocks.

Further, it is provided with circumference position limiting structure between described shower nozzle and described mounting blocks, is used for limiting between described shower nozzle and described mounting blocks and rotates against.

Further, it is provided with dismountable circumference locating part between described connector and described shower nozzle, is used for limiting between described connector and described shower nozzle and rotates against.

Further, also include mounting blocks, described shower nozzle is detachable and is non-rotatably mounted on described mounting blocks, described second end of described connector is provided with the second external screw thread, described shower nozzle is provided with the second receiving chamber of described second end for accommodating described connector, described second accommodates intracavity is provided with the second female thread coordinated with described second external screw thread, and described second end of described connector stretches into and is threadedly coupled to described second and accommodates intracavity.

Further, described connector also includes being arranged between described first end of described connector and described second end and the axial limiting portion of radial protrusion, and described biometric print machine also includes the elastic washer being arranged between described shower nozzle and described axial limiting portion.

Further, the screw threads for fastening power between the second end and the described shower nozzle of described connector is designed to more than the screw threads for fastening power between the first end and the described discharge nozzle of described connector.

Further, the bottom of described shower nozzle includes extension rod, described extension rod is spaced apart and is adjacent to the outlet of described shower nozzle and arranges, and is provided with elongated runner in described extension rod, for making the fluid print unit of biometric print material directed and orient ejection by described runner.

Further, the described extension rod end face adjoining with described shower nozzle is provided with open pocket, the outlet of described open pocket and described flow passage, described shower nozzle extend in described open pocket, described open pocket is tapered towards described runner, auxiliary material runner is formed between the outer wall and described open pocket of described shower nozzle, a chamber is formed between outlet and the outlet of described open pocket of described shower nozzle, the main material fluid that the described outlet from described shower nozzle sprays is wrapped up in the cavity by the auxiliary material fluid of described auxiliary material runner, to form described fluid print unit.

Further, described runner from its entrance to outlet be tapered.

Further, the section that the flow direction along described fluid print unit of described runner intercepts is taper.

Further, described biometric print machine is 3D biometric print machine.

Thus, based on technique scheme, this utility model provides a kind of biometric print machine, this biometric print machine is by arranging connector between the discharge nozzle and shower nozzle of biometric print containers, connector the first end is threadeded with discharge nozzle, second end is removably disposed on shower nozzle, compared to two in prior art jump a queue coordinate mode, biometric print containers only need to be screwed out by the technical program can realize quick-replaceable, make to add biometric print material extremely convenient, avoid and easily connector entirety is extracted and the problem of welding temperature when changing container in the past, there is higher reliability.

Accompanying drawing explanation

Accompanying drawing described herein is used for providing being further appreciated by of the present utility model, constitutes the part of the application, and schematic description and description of the present utility model is only used for explaining this utility model, is not intended that improper restriction of the present utility model.In the accompanying drawings:

The structural representation of Fig. 1 this utility model biometric print machine one embodiment.

Detailed description of the invention

Below by drawings and Examples, the technical solution of the utility model is described in further detail.

Detailed description of the invention of the present utility model is the technical characteristic for the ease of to design of the present utility model, being solved the technical problem that, constitute technical scheme and the technique effect brought has further description.It should be noted that the explanation for these embodiments is not intended that restriction of the present utility model.As long as just can be mutually combined additionally, the technical characteristic related in embodiment of the present utility model described below does not constitutes conflict each other.

Fast inserting structure is generally used to connect shower nozzle and printed material container in view of existing biometric print machine; shower nozzle and printed material container are filled in and be plugged in fast inserting structure two ends respectively; such attachment structure poor stability; fast inserting structure generally also need to other pipe with the use of; it is unfavorable for that the temperature of printed material controls; and it is required for bigger working place when dismounting

This utility model devises a kind of biometric print machine, this biometric print machine is by arranging connector between the discharge nozzle and shower nozzle of biometric print containers, first end of connector is threadeded with discharge nozzle, second end is removably disposed on shower nozzle, compared to two in prior art jump a queue coordinate mode, biometric print containers only need to be screwed out by the technical program can realize quick-replaceable, make to add biometric print material extremely convenient, the problem avoiding the ambient temperature easily connector entirety being extracted and being destroyed shower nozzle when changing container in the past, there is higher reliability.

In one schematic embodiment of this utility model biometric print machine, as shown in Figure 1, biometric print machine includes shower nozzle 1, connector 2 and the biometric print containers with discharge nozzle 3 and conveyer device (not shown), described conveyer device is for being transported to described shower nozzle 1 by biometric print material from described biometric print containers, first end of connector 2 is threadeded with discharge nozzle 3, the second detachably connected shower nozzle of end 1 of connector 2.

In this schematic embodiment, by arranging connector 2 between the discharge nozzle 3 of biometric print containers (not shown) and shower nozzle 1, connector 2 first end is threadeded with discharge nozzle 3, second end is removably disposed on shower nozzle 1, jump a queue the mode coordinated compared to two in prior art, in the present embodiment, such as by controlling main material container and the temperature of auxiliary material container, after temperature reaches design temperature, add biomaterial to corresponding container respectively；The discharge nozzle 3 of corresponding container is inserted the connector of correspondence, and turns clockwise.The most only need rotating biological printed material container, correspondingly discharge nozzle 3 rotates relative to connector, biometric print containers is screwed out can realize quick-replaceable, make to add biometric print material (such as biological prepared Chinese ink) extremely convenient, avoid the connector entirety easily jumped a queue at two when in the past changing biometric print containers to extract and the problem of welding temperature, avoiding the connector entirety jumped a queue at two when extracting, working place is limited and the problem that is difficult to operation.

A kind of preferred implementation threadeded with discharge nozzle 3 as connector 2, as shown in Figure 1, the port of export of discharge nozzle 3 is provided with the first external screw thread, first end of connector 2 is provided with the first receiving chamber for accommodating the port of export, first accommodates intracavity is provided with the first female thread coordinated with the first external screw thread, and the port of export is sheathed on and is threadedly coupled in the first end of connector 2.Owing to biometric print containers needs often to change, by arranging external thread structure at the port of export of discharge nozzle 3, discharge nozzle 3 screws in the first receiving chamber of connector 2 spirally, the female thread structure form that discharge nozzle is arranged is screwed in compared to connector, this preferred implementation is easy to carry out discharge nozzle 3 alignment location so that biometric print containers easier for installation fast.

Certainly, by arranging female thread structure at the port of export of discharge nozzle 3, in the port of export of the first end of connector 2 company's of screw-in discharge nozzle 3 spirally, fall within protection domain of the present utility model.

As the improvement to above-described embodiment, as it is shown in figure 1, first to accommodate chamber towards the direction of the second end of connector 2 be tapered.The first receiving cavity wall at connector 2 is provided with towards the tapered threaded engagement face of the second end of connector, namely arrange towards shower nozzle 1 tapered first receiving chamber, after the port of export of discharge nozzle 3 injects the first receiving chamber, the sidepiece of discharge nozzle 3 is closely cooperated with connector 2 by taper registration face, connect and more closely consolidate, good seal performance.

Preferably, the first section accommodating chamber is taper, the first receiving chamber symmetrically structure of taper, it is possible to ensures the port of export of the first end circumference sealed envelope discharge nozzle 3 equably of connector 2, further obtains better seal effect；And the first of taper the receiving chamber is prone to processing, it is simple to discharge nozzle 3 is screwed out.Preferably, the tapering of the first section accommodating chamber is 6%, and namely first accommodates chamber employing 6% (Rule) taper design, in this preferred numerical range, it is ensured that coupling part 500KPa's is pressure, is prevented effectively from the leakage of biometric print material.

As one preferred embodiment of this utility model biometric print machine, as it is shown in figure 1, biometric print machine also includes mounting blocks 4, shower nozzle 1 is detachable and is non-rotatably mounted on mounting blocks 4.Mounting blocks 4 positions, by being removably mounted on mounting blocks 4 by shower nozzle 1, it is possible to the shower nozzle 1 being easy to different size is changed, and shower nozzle 1 is non-rotatably mounted on mounting blocks 4 for carrying out shower nozzle 1 installing.Dismountable circumference locating part it is provided with so that connector 2 can not rotate relative to shower nozzle 1 between connector 2 and shower nozzle 1.So it can be avoided that when there is turn in discharge nozzle 3 shower nozzle 1 and connector 2 be mounted opposite block 4 and occur servo-actuated.

Specifically, shower nozzle 1 arranges circumference position limiting structure realization relative to non-rotatable the passing through of mounting blocks 4 between shower nozzle 1 and mounting blocks 4, the port of export of shower nozzle 1 such as can be processed into the non-circular cylinder in cross section and insert in mounting blocks 4 in the non-circular installation in corresponding cross section passage, as illustrated in fig. 1, shower nozzle 1 one end can be provided with radial protrusion 11, for matching with the recess of mounting blocks 4.

As this utility model another specific embodiment of biometric print machine, as shown in Figure 1, biometric print machine also includes mounting blocks 4, shower nozzle 1 is detachable and is non-rotatably mounted on mounting blocks 4, second end of connector 2 is provided with the second external screw thread, shower nozzle 1 is provided with the second receiving chamber of the second end for accommodating connector 2, and second accommodates intracavity is provided with the second female thread coordinated with the second external screw thread, and the second end of connector 2 stretches into and be threaded io the second receiving chamber.By arranging the second external screw thread at the second end of connector 2, the second end of connector 2 screws in the second receiving chamber of shower nozzle 1 spirally so that connector 2 securely connects shower nozzle 1, it is to avoid biometric print material is in the leakage of junction.Preferably, as shown in Figure 1, connector 2 also includes being arranged between the first end of connector 2 and the second end and the axial limiting portion 21 of radial protrusion, biometric print machine also includes the elastic washer (not shown) being arranged between shower nozzle 1 and axial limiting portion 21, axial limiting portion 21 enables to connector 2 and obtains the most axially location, and the elastic washer being arranged between shower nozzle 1 and axial limiting portion 21 ensure that connector 2 and the threaded of shower nozzle 1 have bigger pretightning force, it is to avoid when discharge nozzle 3 occurs turn, connector 2 opposing showerhead 1 occurs servo-actuated.

Additionally, screw threads for fastening power between connector 2 and shower nozzle 1 is designed to be more than the screw threads for fastening power between connector 2 and discharge nozzle 3, so make when by rotating biological file printing container so that discharge nozzle 3 is connected with connector 2 disengagement, even if in the case of connector 2 and shower nozzle 1 are not provided with circumferentially positioned part, connector 2 also will not rotate with shower nozzle 1 together with biomaterial printing container.

According to another aspect of the present utility model, directly cell is ejected to print platform in view of at existing biometric print machine shower nozzle, the damage that can be caused by mechanical force in print procedure as the fluid of printed material, the shower nozzle being positioned in this utility model on X-axis motion platform is by arranging and have the extension rod of elongated runner being adjacent to spray outlet, fluid print unit as biometric print material is directed ejection by runner, this runner can protect fluid print unit, reduce the damage of mechanical force convection cell print unit in print procedure, there is higher reliability.

In this schematic embodiment, the extension rod 5 with runner 51 can be disposed adjacent to shower nozzle 1 exit position by mounting blocks 4, fluid print unit as biometric print material is directed and orient ejection by runner 51, suddenly the structure narrowed compared to outlet at bottom in prior art, fluid print unit pressure experienced during drain sprays is more uniform, and it is prone to maintain good mobility, the flow direction of biometric print material is more stable, alleviate the situation of mutual crowded compressing between cell, reduce the damage of mechanical force convection cell print unit in print procedure.

Fluid print unit refers to the minimum print unit of biometric print material, it can be the minimum unit that single main material fluid (biological prepared Chinese ink) forms, it is also possible to wrapped up main material fluid by auxiliary material fluid (hydrogel) and the minimum unit of fluid-mixing that forms.

Runner 51 can be oriented sequence by convection cell print unit, reduces the probability blocked.For fluid print unit is the fluid-mixing print unit formed by auxiliary material Fluid inclusions main material fluid, runner 51 also helps auxiliary material fluid and wraps up equably and protect main material fluid.

Additionally, due to runner 51 is in elongate shape, prevents the friction of biometric print material and metal material in print procedure from producing damage, thus runner 51 can protect fluid print unit, reduces the damage influence of print procedure mechanical force convection cell print unit.

Runner 51 can be straight as depicted, and fluid print unit is sprayed downwards, it is also possible to is arranged to the version of bending according to printing demand, to provide the selection of more emission direction.

As it is shown in figure 1, can also arrange heat preservation member 52 on extension rod 5 periphery, heat preservation member 52 ensure that fluid print unit keeps required temperature in runner 51, maintains the activity of fluid print unit.And such version overcomes, in the case of not having extension rod, shower nozzle must stretch out certain length so that applying ejection material but uninsulated technological deficiency.

Improve as to the one side of above-described embodiment, as it is shown in figure 1, runner 51 is tapered from its entrance to outlet.Runner 51 is so designed so that fluid print unit advances to be conducive to improving the fluid print unit flow velocity in runner 51 exit in runner 51, and reduces the probability of its blocking.Preferably, the section that the flow direction along fluid print unit of runner 51 intercepts is taper, fluid print unit is more uniformly distributed in runner 51 being similar to the runner 51 of the taper of the version of funnel or subway sluice gate, reduce its probability blocked further, and tapered runner is prone to processing, has preferable exploitativeness.

Preferably, on the one hand, the entrance opening dimension of runner 51 is n times of fluid print unit size, n=2-5, the problem that the entrance of runner 51 occurs blocking can be prevented effectively from this preferred size range.Preferably, the entrance opening dimension of runner 51 is 2 times of fluid print unit size, so that the porch of runner 51 at most can only enter two fluid print units abreast.Owing to runner 51 is tapering type runner, single-row fluid print unit can only be flowed out in the exit arriving runner 51, so can reduce the probability of fluid print unit blocking further, and beneficially fluid print unit is single-row ejection.

On the other hand, the outlet size of runner 51 is 1-1.5 times of fluid print unit size, preferably 1.2 times.In this size range, it is single-row ejection that runner 51 is not only beneficial to fluid print unit, and can also ensure main material fluid the most impaired in the case of avoid auxiliary material fluid blocked up wrap up main material fluid, and being conducive to improving further fluid print unit flow velocity at runner exit, it is ensured that fluid print unit is seriality and the uniformity of single-row ejection.

As the another aspect improvement to above-described embodiment, as shown in Figure 1, extension rod 5 end face adjoining with shower nozzle 1 is provided with open pocket 53, the outlet of open pocket 53 connects with runner 51, shower nozzle 1 extend in open pocket 53, the cross section of open pocket 53 is tapered towards runner 51, auxiliary material runner is formed between the outer wall and open pocket 53 of shower nozzle 1, a chamber is formed between the outlet and the outlet of open pocket 53 of shower nozzle 1, the main material fluid that the outlet from shower nozzle 1 sprays is wrapped up in the chamber by the auxiliary material fluid of auxiliary material runner, to form fluid print unit.By arranging tapered open pocket 53 on the end face adjoining with shower nozzle 1 at extension rod 5, auxiliary material runner is formed between outer wall and the open pocket 53 of shower nozzle 1, a chamber is formed between outlet and the outlet of open pocket 53 of shower nozzle 1, auxiliary material fluid (hydrogel) enters this chamber by auxiliary material runner and wraps up the main material fluid (biological prepared Chinese ink) of ejection in shower nozzle, thus forms fluid-mixing print unit.Wherein, main material fluid can be homogenizing, heterogeneous body (such as granular mixture), fluid continuously or discontinuously.

Specifically, owing to forming auxiliary material runner between outer wall and the tapered open pocket 53 of shower nozzle 1, auxiliary material runner has the function of uniform pressure, even if auxiliary material is to be entered auxiliary material runner by side as illustrated in fig. 1, it still has uniform pressure in auxiliary material runner, it is ensured that biomaterial has in the side being adjacent to or remotely from auxiliary material import and wraps up effect uniformly.In this embodiment, the section that the flow direction along described fluid print unit of open pocket 53 intercepts is preferably taper, the open pocket 53 of tapered structure makes auxiliary material fluid flow along the conical surface of open pocket 53, play the effect that the exit towards shower nozzle 1 is converged, being conducive to the auxiliary material element of fluid uniform parcel to main material element of fluid, the open pocket 53 of this version can also ensure that the flow direction in chamber is more stable.

Mixed fluid print unit flows in open pocket 53, and open pocket 53 is conducive to fluid print unit to converge at the runner 51 of extension rod 5, the flow direction of the mixed fluid print unit in guarantee chamber is more stable, it is to avoid it is spread in auxiliary material runner.

As shown in Figure 1, gap is left between outlet and the open pocket 53 of shower nozzle 1, preferably, gap between outlet and the open pocket 53 of shower nozzle 1 is less than the size of fluid print unit, so it is prevented from fluid print unit to auxiliary material runner reverse flow, it is ensured that chamber fluid inside print unit stably flows to runner 51.

According in biometric print machine nozzle component one embodiment of the present utility model, the process of auxiliary material Fluid inclusions main material fluid is as follows:

Main material fluid is after the ejection of shower nozzle 1, enter the chamber between outlet and the outlet of open pocket 53 of shower nozzle 1, auxiliary material fluid enters this chamber by the auxiliary material runner formed between outer wall and the open pocket 53 of shower nozzle 1, auxiliary material fluid in chamber has certain pressure, and the compressing of auxiliary material fluid is attached to the main material element of fluid of the part exposed by shower nozzle 1, until after the ejection of whole main material element of fluid, main material element of fluid is all wrapped up by auxiliary material fluid, define the fluid print unit of a mixing, at this moment during a part for this fluid print unit may have been introduced into the runner 51 of extension rod 5.Finally make winner's material element of fluid enter the runner 51 of extension rod 5 under the parcel continuously of auxiliary material fluid, flowed by the main material element of fluid of auxiliary material Fluid inclusions at runner 51 interior orientation, uniformly wrapped up and spray in order.

In flow process; main material fluid is wrapped up sufficiently uniformly by auxiliary material fluid; this spline structure also makes auxiliary material wrap up uniformly abundant; auxiliary material fluid was wrapped in around main material formation protection structure at main material fluid before the outlet of runner 51 sprays, and reduce further the print procedure impact on main material fluid.

Above in association with embodiment embodiment of the present utility model is described in detail, but this utility model is not limited to described embodiment.Such as shower nozzle 1 is detachable and is non-rotatably mounted on mounting blocks 4 and can also be realized by the interference fit between shower nozzle 1 and mounting blocks 4; for a person skilled in the art, these embodiments carry out in the case of without departing from principle of the present utility model and connotation multiple change, amendment, equivalence is replaced and modification still falls within protection domain of the present utility model.

Claims (12)

1. a biometric print machine, it is characterized in that, including shower nozzle (1), connector (2) and biometric print containers and the conveyer device with discharge nozzle (3), described conveyer device is for being transported to described shower nozzle (1) by biometric print material from described biometric print containers, first end of described connector (2) is threadeded with described discharge nozzle (3), the second detachably connected described shower nozzle of end (1) of described connector (2).

Biometric print machine the most according to claim 1, it is characterized in that, the port of export of described discharge nozzle (3) is provided with the first external screw thread, described first end of described connector (2) is provided with the first receiving chamber for accommodating the described port of export, described first accommodates intracavity is provided with the first female thread coordinated with described first external screw thread, and the described port of export is sheathed on and is threadedly coupled to state in described first end of connector (2).

Biometric print machine the most according to claim 2, it is characterised in that the described first section intercepted along the second extreme direction towards described connector (2) accommodating chamber is tapered.

Biometric print machine the most according to claim 3, it is characterised in that the described first described section accommodating chamber is taper.

Biometric print machine the most according to claim 4, it is characterised in that the tapering of described taper is 6%.

Biometric print machine the most according to claim 1, it is characterised in that also include mounting blocks (4), described shower nozzle (1) is detachable and is non-rotatably mounted on described mounting blocks (4).

Biometric print machine the most according to claim 6, it is characterized in that, it is provided with circumference position limiting structure between described shower nozzle (1) and described mounting blocks (4), is used for limiting between described shower nozzle (1) and described mounting blocks (4) and rotates against.

Biometric print machine the most according to claim 1, it is characterized in that, it is provided with dismountable circumference locating part between described connector (2) and described shower nozzle (1), is used for limiting between described connector (2) and described shower nozzle (1) and rotates against.

Biometric print machine the most according to claim 1, it is characterized in that, also include mounting blocks (4), described shower nozzle (1) is detachable and is non-rotatably mounted on described mounting blocks (4), described second end of described connector (2) is provided with the second external screw thread, described shower nozzle (1) is provided with the second receiving chamber of described second end for accommodating described connector (2), described second accommodates intracavity is provided with the second female thread coordinated with described second external screw thread, described second end of described connector (2) stretches into and is threadedly coupled to described second and accommodates intracavity.

Biometric print machine the most according to claim 9, it is characterized in that, described connector (2) also includes being arranged between described first end of described connector (2) and described second end and the axial limiting portion (21) of radial protrusion, and described biometric print machine also includes the elastic washer being arranged between described shower nozzle (1) and described axial limiting portion (21).

11. biometric print machines according to claim 9, it is characterized in that, the screw threads for fastening power between the second end and the described shower nozzle (1) of described connector (2) is designed to more than the screw threads for fastening power between the first end and the described discharge nozzle (3) of described connector (2).

12. biometric print machines according to claim 1, it is characterised in that described biometric print machine is 3D biometric print machine.