CN113414981A

CN113414981A - Efficient FDM3D printing device

Info

Publication number: CN113414981A
Application number: CN202110804057.7A
Authority: CN
Inventors: 郭文霞; 吴永军
Original assignee: Inner Mongolia University of Technology
Current assignee: Inner Mongolia University of Technology
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2021-09-21
Anticipated expiration: 2041-07-16
Also published as: CN113414981B

Abstract

The invention discloses an efficient FDM3D printing device, wherein a lifting plate and a bearing table positioned above the lifting plate are vertically and slidably arranged in a printing box body, the bearing table is movably supported on the lifting plate through an elastic supporting piece, and a plurality of vertical column body assemblies are further arranged on the bottom surface of the bearing table; the bearing platform is characterized by further comprising a horizontal reference plate arranged in parallel with the lifting plate, a plurality of abutting assemblies are arranged on the horizontal reference plate, each abutting assembly is arranged in one-to-one correspondence with the vertical column body assembly, the horizontal reference plate vertically moves upwards under the driving of the driving device to enable the abutting assemblies to abut against the vertical column body assemblies, and the bearing platform and the horizontal reference plate are arranged in parallel. The efficient FDM3D printing device provided by the invention can quickly level a bearing table, and can enable a spray head to be close to the distance of a piece of paper relative to the bearing table, namely, the spray head can spray materials conveniently, so that the continuous spraying of a bonding performance plate between a first layer of coating and the bearing table and subsequent coatings can be greatly improved.

Description

Efficient FDM3D printing device

Technical Field

The invention relates to the technical field of 3D printing, in particular to a high-efficiency FDM3D printing device.

Background

FDM3D refers to a material that will be FDM, such as a thermoplastic material, e.g., wax, ABS, nylon, etc. The materials are fed in a filamentous form, then the materials are heated and melted in the spray head, the materials move along the section profile and the filling track of the structural structure of the part, the melted materials are extruded out at the same time, and after printing is finished, the materials are solidified into products, namely the 3D products required by people are obtained.

Generally, when 3D printing is performed, in the working process of a printer, a working platform needs to be continuously moved due to the sizes of different products, since a spray head moves along the X and Y axes of the printer and needs to be driven by a corresponding transmission mechanism, and the transmission mechanism changes in a multi-mode manner, most of the working platforms are arranged in a suspension manner, that is, a spring is arranged below a supporting working platform to support the working platform, so that the working platform needs to be adjusted each time printing is performed, the existing adjusting manner is that the working platform is controlled to ascend to be close to a printing spray head, the printing spray head is moved, the printing spray head is sequentially positioned to four corner position points of the working platform, when the printing spray head is positioned at each corner position point of the working platform, an adjusting nut below the working platform is sequentially and manually adjusted, and then a gap of about one piece of printing paper is kept between each position point and the printing spray head, to determine that the work platform has been leveled;

for example, in the patent of the invention in china with the publication number "CN 105563828B" entitled "automatic leveling type 3D printer", an electromagnet is arranged in a printing nozzle, and the magnetic force of the electromagnet drives a sliding column to move, and then under the action of other structures in cooperation, each corner position point just props against the printing nozzle, so that the working platform is adjusted to a horizontal state, and the effect of saving labor energy is achieved.

For another example, as the chinese patent with an issued publication number of "CN 107599399B" entitled "leveling mechanism for 3D printer and 3D printer", the disclosed adjusting plate and platform are connected by an axial guiding structure and can move relatively in the axial direction through the axial guiding structure, the adjusting plate and the axial guiding structure can move downward together at the initial stage of platform descending, when the platform abuts against the tray, the platform can move freely up and down in the axial direction relative to the adjusting plate for automatic adjustment, and has good and rapid adjusting effect.

The existing leveling mode is not only complex, but also the existing working platform is in a suspension plate type, so that the problem of low levelness of the working platform still exists, the coating is not easy to stick on the working platform when the first layer of coating is printed, the continuous printing above the subsequent layer is greatly influenced, and the forming quality of a product is influenced.

Disclosure of Invention

The invention aims to provide an efficient FDM3D printing device to solve the defects in the prior art.

In order to achieve the above purpose, the invention provides the following technical scheme:

an efficient FDM3D printing device comprises a printing box body, wherein a lifting plate and a bearing table located above the lifting plate are vertically and slidably arranged in the printing box body, the bearing table is movably supported on the lifting plate through an elastic supporting piece, and a plurality of vertical cylinder assemblies are further arranged on the bottom surface of the bearing table;

the bearing platform is characterized by further comprising a horizontal reference plate arranged in parallel with the lifting plate, a plurality of abutting assemblies are arranged on the horizontal reference plate, the abutting assemblies and the vertical column assemblies are arranged in a one-to-one correspondence mode, the horizontal reference plate moves vertically upwards under the driving of a driving device to enable the abutting assemblies to abut against the vertical column assemblies, and the bearing platform and the horizontal reference plate are arranged in parallel.

Preferably, the elastic support member is a first spring, the first spring is sleeved on the vertical column, the vertical column assembly comprises a support column and a horizontal plate fixedly arranged below the support column, the upper end of the support column is connected to the bearing table, and the first spring is located between the bearing table and the lifting plate.

Preferably, the supporting column penetrates through the lifting plate, and the horizontal plate is located in the reference groove under the elastic force of the first spring.

Preferably, the end of the supporting column is connected to the bearing table in a universal rotating mode.

Preferably, the horizontal reference plate is vertically and slidably arranged below the lifting plate through a fixing rod, and the driving device is arranged below the horizontal reference plate to drive the horizontal reference plate to vertically reciprocate.

Preferably, the abutting assembly comprises an abutting block vertically arranged on the horizontal reference plate in a sliding mode and a threaded column connected in the abutting block in a sliding mode, a second spring is sleeved on the outer wall of the threaded column in a sleeved mode, and the threaded column is connected to the horizontal reference plate in a threaded mode.

Preferably, under the elastic force of the second spring, the abutting block protrudes above the horizontal reference plate and abuts against the horizontal plate.

Preferably, a plurality of inclined grooves are formed in the upper portion of the horizontal plate, inclined blocks are arranged in the inclined grooves in a sliding mode along inclined planes, and when the inclined blocks are completely filled in the inclined grooves, the horizontal plate can move downwards for a certain distance.

Preferably, a plurality of tapered blocks matched with the tapered grooves are fixedly installed above the horizontal reference plate, and when the tapered blocks are pushed into the tapered grooves, the tapered blocks can abut against the inclined blocks, so that the inclined blocks are filled into the inclined grooves.

Preferably, the height of the abutting block is higher than that of the conical block.

In the above technical solution, the efficient FDM3D printing apparatus provided by the present invention has the following beneficial effects:

the horizontal reference plate is arranged below the lifting plate, and the abutting mechanism is arranged on the horizontal reference plate, so that when the levelness of the bearing table is adjusted, the abutting assembly abuts against the supporting column at the corresponding position by upwards driving the horizontal reference plate, the supporting column can be in a horizontal state relative to the bearing table without losing the elastic support of the first spring to the bearing table, and the inclined block can be abutted by the arranged conical block when the bearing table is in the horizontal state, so that the bearing table moves downwards for about the distance of a piece of paper, the bearing table can be quickly in the horizontal state, the distance of the nozzle relative to the bearing table is about the distance of a piece of paper, the nozzle can spray materials conveniently, and the continuous spraying of the bonding performance plate between the first layer of coating and the bearing table and subsequent coatings can be greatly improved, the molding quality of the product is improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 is a schematic structural diagram provided in an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a lifting plate, a bearing table, and a horizontal reference plate according to an embodiment of the present invention;

FIG. 3 is an exploded view of a lift plate, a carrier, and a horizontal reference plate according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a plane structure of the lifting plate, the bearing table, and the horizontal reference plate when not in use according to an embodiment of the present invention;

FIG. 5 is a schematic view of a plane structure of the lifting plate, the bearing table, and the horizontal reference plate when in use according to the embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a vertical column assembly provided by an embodiment of the present invention;

FIG. 7 is an enlarged schematic view of a portion A according to an embodiment of the present invention;

FIG. 8 is an enlarged schematic view of a structure at B according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a fastening block and a threaded post according to an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of an adjusting block and a connecting column according to an embodiment of the present invention;

FIG. 11 is a schematic structural view of a carrier and a horizontal plate according to an embodiment of the present invention;

FIG. 12 is a schematic structural view of a tilted block provided in an embodiment of the present invention when not in use;

fig. 13 is a schematic structural view illustrating an inclined block being pressed into an inclined groove according to an embodiment of the present invention.

Description of reference numerals:

1. printing the box body; 2. a lifting plate; 3. a bearing table; 4. heating a tube; 5. a horizontal reference plate; 6. fixing the rod; 7. a support pillar; 8. a propping block; 9. a conical block; 10. connecting columns; 11. a slider; 101. a spray head; 102. a cross bar; 21. a threaded rod; 41. a cooling tube; 411. an adjustment column; 51. an adjustment member; 71. a first spring; 72. a horizontal plate; 7201. a reference groove; 7202. an inclined groove; 82. a second spring; 91. a tapered block; 901. a tapered groove; 81. a threaded post; 1001. a third spring; 1002. a locking block; 1101. an adjusting block; 1102. a chute.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of the word "comprising" or "comprises", and the like, in this disclosure is intended to mean that the elements or items listed before that word, include the elements or items listed after that word, and their equivalents, without excluding other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Referring to fig. 1-13, an efficient FDM3D printing apparatus includes a printing box 1, a lifting plate 2 and a carrier 3 disposed above the lifting plate 2 are vertically slidably disposed in the printing box 1, the carrier 3 is movably supported on the lifting plate 2 by an elastic support, a plurality of vertical cylinder assemblies are disposed on a bottom surface of the carrier 3, a horizontal reference plate 5 is disposed in parallel with the lifting plate 2, the horizontal reference plate 5 is disposed with a plurality of abutting assemblies, each abutting assembly is disposed in one-to-one correspondence with the vertical cylinder assemblies, the horizontal reference plate 5 is driven by a driving device to move vertically upwards to abut the abutting assemblies against the vertical cylinder assemblies, and the carrier 3 and the horizontal reference plate 5 are disposed in parallel, specifically, the invention supports the carrier 3 by the elastic support, and then transmits abutting force of the abutting assemblies by the vertical cylinder assemblies, thereby can be through the vertical cylinder subassembly of butt subassembly butt for plummer 3 is parallel arrangement with horizontal datum plate 5, thereby under the dynamics of propping tight subassembly to the conflict of vertical cylinder subassembly, makes plummer 3 be in the horizontality for horizontal datum plate 5. And the vertical column body assembly penetrates through the lifting plate 2 and is contacted with the abutting assembly, so that the abutting force of the abutting assembly can be received.

According to the invention, the horizontal reference plate 5 is arranged below the lifting plate 2, and the abutting mechanism is arranged on the horizontal reference plate 5, so that when the levelness of the bearing table 3 is adjusted, the horizontal reference plate 5 is driven upwards to enable the abutting assembly to abut against the supporting column 7 at the corresponding position, namely the supporting column 7 can be in a horizontal state relative to the bearing table 3 without losing the elastic support of the first spring 71 to the bearing table 3, and the bearing table 3 can abut against the inclined block 91 through the arranged conical block 9 when in the horizontal state, so that the bearing table 3 can move downwards by about a paper-feeding distance, not only can the bearing table 3 be quickly in the horizontal state, but also the spray head 101 can be enabled to be about a paper-feeding distance relative to the bearing table 3, namely the spray head 101 can be convenient to spray, so that the continuous spraying of the adhesion performance plate between the first layer of coating and the bearing table 3 and the subsequent coating can be greatly improved, the molding quality of the product is improved.

Specifically, in this embodiment, the elastic support member is a first spring 71, the first spring 71 is sleeved on a vertical column, the vertical column assembly includes a support column 7 and a horizontal plate 72 fixedly disposed below the support column 7, the upper end of the support column 7 is connected to the plummer 3, the first spring 71 is located between the plummer 3 and the lifting plate 2, and specifically, the horizontal plate 72 fixedly disposed below the support column 7 is located in a reference groove 7201 formed below the lifting plate 2; and the abutting assembly is vertically arranged on the horizontal reference plate 5, the abutting assembly abuts against each horizontal plate 72 under the driving of the driving device to synchronously move upwards and tightly attach to the horizontal groove surface of the reference groove 7201, so that the bearing table 3 is in a horizontal state, the groove surface formed above the reference groove 7201 is parallel to the horizontal reference plate 5, the first spring 71 is positioned between the bearing table 3 and the lifting plate 2, and the lifting plate 2 is in a fixed state relative to the bearing table 3, namely, the elastic force of the first spring 71 has an upward elastic force trend, so that the bearing table 3 is supported.

In a further embodiment of the present invention, the support column 7 penetrates the elevating plate 2, and the horizontal plate 72 is seated in the reference groove 7201 by the elastic force of the first spring 71. The horizontal plate 72 fixedly disposed below the support column 7 is located in the reference groove 7201, the horizontal plate 72 is located in the reference groove 7201 by the elastic force of the first spring 71, and the upper side of the horizontal plate 72 is brought into close contact with the upper groove surface in the reference groove 7201.

Further, the end of the supporting column 7 is rotatably connected to the carrier 3. In the invention, in particular, after the support column is used for a long time, the first spring 71 is deformed, so that one support column 7 can move downwards to a corresponding position, the universal rotating shaft ball is arranged at the end part of the support column 7, and then the universal rotating shaft ball is connected below the bearing platform 3, so that when one support column 7 moves downwards due to insufficient elasticity, the support column 7 and the bearing platform 3 cannot be clamped.

Further, a horizontal reference plate 5 is vertically slidably provided below the elevating plate 2 by a fixing rod 6, and a driving means is provided below the horizontal reference plate 5 to drive the horizontal reference plate 5 to vertically reciprocate. In the invention, the adjusting piece 51 is formed by rotatably arranging one end of an adjusting screw below the lifting plate 2 and then in threaded connection with the horizontal reference plate 5, namely when the adjusting screw is rotated, the threaded horizontal reference plate 5 can vertically move upwards or downwards along the fixed rod 6.

In the further proposed scheme of the present invention, the abutting assembly comprises an abutting block 8 vertically slidably disposed on the horizontal reference plate 5 and a threaded post 81 slidably connected in the abutting block 8, a second spring 82 is sleeved on an outer wall of the threaded post 81, and the threaded post 81 is threadedly connected to the horizontal reference plate 5, in the present invention, under long-time use, the elastic force of the first spring 71 will change correspondingly, that is, the support levelness of the bearing table 3 will also change, and in the present invention, by the elastic force adjustable abutting assembly, when the elastic force of one of the first springs 71 changes, it is more preferable that the threaded post 81 correspondingly disposed below can be adjusted, so that the corresponding movement is performed, that is, the threaded post 81 is displaced relatively with respect to the abutting block 8, so that the elastic force of the second spring 82 to the abutting block 8 is changed, that the change of the elastic force of the corresponding first spring 71 can be adaptively compensated, therefore, the sum of the elastic force of each abutting component and the elastic force of the corresponding first spring 71 can be ensured to be equal, namely the supporting force for the bearing table 3 is also basically equal, the levelness of the bearing table 3 can be further improved, and the change of the supporting force caused by the change of the first springs 71 can be overcome.

In the embodiment of the present invention, under the elastic force of the second spring 82, the abutting block 8 protrudes above the horizontal reference plate 5 and abuts against the horizontal plate 72. And specifically, the elastic force of the first spring 71 is smaller than that of the second spring 82, so that when the abutting block 8 abuts against the horizontal plate 72, the abutting block 8 can firstly overcome the elastic force of the first spring 71, and the horizontal plate 72 is tightly attached to the groove surface of the reference groove 7201.

Further, a plurality of inclined grooves 7202 are formed above the horizontal plate 72, inclined blocks 91 are arranged in the inclined grooves 7202 in a sliding manner along inclined planes, and when the inclined blocks 91 are completely filled in the inclined grooves 7202, the horizontal plate 72 can move downwards for a certain distance; specifically, the inclined groove 7202 and the inclined block 91 are as shown in fig. 6, in the initial position, a state between the inclined block 91 and the inclined groove 7202 is as shown in fig. 12, the inclined block 91 is not completely located in the inclined groove 7202, the horizontal plate 72 at this time is close to and attached to the groove surface of the reference groove 7201, one end of the inclined block 91 is located in the tapered groove 901 formed in the lifting plate 2, one end of the inclined block 91, which is far away from the inclined groove 7202, is located in the tapered groove 901, that is, when the inclined block 9 is pressed into the tapered groove 901, the inclined block 91 can be pressed, so that the inclined block 91 is pressed into the inclined groove 7202, and the horizontal plate 72 moves downward for a certain distance.

As shown in fig. 12, a plurality of tapered blocks 9 adapted to the tapered groove 901 are fixedly mounted above the horizontal reference plate 5, and when the tapered blocks 9 are pushed into the tapered groove 901, they can abut against the tapered blocks 91, so that the tapered blocks 91 are completely filled in the tapered groove 7202.

In particular, the height of the abutment block 8 is higher than the height of the conical block 9. In the invention, the height of the abutting block 8 is set to be higher than that of the conical block 9, that is, when leveling is performed, the abutting block 8 can abut against the horizontal plate 72, so that the bearing table 3 is in a horizontal state, and then the conical block 9 abuts into the conical groove 901, so that the horizontal plate 72 moves downward, that is, the abutting force of the abutting block 8 against the horizontal plate 72 is not affected.

Specifically, the lower surface of the bearing table 3 is also provided with an annular cooling pipe 41, the cooling pipe 41 can vertically slide between the bearing table 3 and the lifting plate 2, a heating pipe 4 is also arranged above the lifting plate 2, the heating pipe 4 is positioned between the annular cooling pipes 41, the cooling pipe 41 and the heating pipe 4 are connected through an adjusting column 411, a connecting column 10 is arranged below the heating pipe 4, one end of the connecting column 10 penetrates through the lifting plate 2, and the connecting column is detachably connected to a horizontal reference plate 5 arranged below the lifting plate 2;

in the invention, the cooling pipe 41 and the heating pipe 4 are connected through the adjusting column 411, and when the heating pipe 4 moves upwards, the cooling pipe 41 can be driven to move downwards by the acting force of the adjusting column 411. The cooling pipe 41 can be separated from the bearing table 3 in the downward moving process, the initial position enables the condensation pipe to be in contact with the lower surface of the bearing table 3, and the heating pipe 4 moves upwards and is in contact with the lower surface of the bearing table 3 to heat the bearing table 3 in the downward moving process of the cooling pipe 41;

furthermore, a locking mechanism is arranged below the connecting column 10, an adjusting component matched with the locking mechanism is arranged on the horizontal reference plate 5, the locking mechanism comprises a locking block 1002 and a third spring 1001 which are arranged below the connecting column 10 in a sliding manner, the third spring 1001 is arranged in the connecting column 10, one end of the third spring is abutted against the locking block 1002, namely under the elastic force of the third spring 1001, as shown in fig. 8, one end of the locking block 1002 protrudes to the outer side of the connecting column 10 and can be inserted into a sliding groove 1102 formed in the horizontal reference plate 5, the adjusting component comprises a sliding block 11 which is arranged in the sliding groove 1102 in a horizontal sliding manner and an adjusting block 1101 which is arranged on the horizontal reference plate 5 in a rotating manner, one end of the sliding block 1101 is movably arranged on the sliding block 11, and the setting of the adjusting component is mainly aimed at requiring to move the heating pipe 4 downwards and move the cooling pipe 41 upwards synchronously after the product is sprayed, contact with the below of plummer 3, only need adjust the regulating block 1101 at this moment and can be with heating pipe 4 downstream, need not adjust whole horizontal datum plate 5 to the very big processing of the product of being convenient for saves the regulation time, and does work to the operation panel through what connect heat pipe and cooling tube 41 looks crisscross: before processing, the bearing table 3 is leveled through the horizontal reference plate 5 and the abutting assembly, and in the process of adjustment, can simultaneously adjust the upward movement of the heating pipe 4, so that the heating pipe 4 is attached below the bearing platform 3, then the bearing table 3 is heated, thereby improving the temperature of the heating table, facilitating the first layer of coating sprayed by the spray head 101 to be adhered on the bearing table 3, then, after the spraying is finished, the heating pipe 4 can be directly moved downwards through the adjusting and adjusting block 1101 without integrally moving the horizontal reference plate 5 downwards, thereby not only ensuring the levelness of the bearing platform 3 and facilitating the next use, but also being capable of interchanging the vertical positions of the heating pipe 4 and the cooling pipe 41, thereby also being convenient for remove the cooling tube 41 to the below of plummer 3, be convenient for cool off the periphery of the product after just processing, be convenient for remove the product fast.

Specifically, the notch that spout 1102 set up is as shown in fig. 8, that is, what the notch of spout 1102 was seted up is bigger, stirs adjusting block 1101 promptly for when locking block 1002 breaks away from spout 1102, the below of locking block 1002 can break away from spout 1102 earlier, thereby the locking block 1002 downstream of being convenient for, be convenient for drive heating pipe 4 downstream.

In the invention, the heating pipe 4 and the cooling pipe 41 are arranged between the bearing platform 3 and the lifting plate 2, the cooling pipe 41 is positioned above the bearing platform 3 in an initial state, so that the arrangement of the cooling pipe 41 and the heating pipe 4 can increase the temperature in the middle of the bearing platform 3 through the heating pipe 4 when spraying the first layer, thereby increasing the bonding performance between the first layer and the bearing platform 3 and facilitating the forming of subsequent products, and the temperature of the bearing platform 3 is reduced through the cooling pipe 41 after the products are formed, thereby facilitating the taking out of the products and reducing the scalding of workers, moreover, in the invention, the heating pipe 4 is arranged between the annular cooling pipes 41, thereby heating the middle of the bearing platform 3 during heating and facilitating the bonding, and the annular cooling pipe 41 is arranged, thereby firstly cooling the peripheral bearing platform 3, thereby make the temperature at shaping product top reduce the temperature by outside to interior gradually be convenient for more personnel through with instruments such as shovel through peripheral region inside shovel be convenient for take out of product that have already reduced the temperature.

In the cup-type cooling device, the heating pipes 4 and the cooling pipes 41 are arranged in a staggered manner, so that the heating pipes 4 and the cooling pipes 41 are not completely positioned below the plummer 3; when the two are used or not used, the temperature interference of the other side can be avoided, and the service life is prolonged.

In use, the device is first placed in a horizontal position, i.e. with the crossbar 102 horizontal, and then with the threaded rod 21 vertical, before adjustment:

since the support column 7 is pressed upward by the elastic force of the first spring 71, the horizontal plate 72 is positioned in the reference groove 7201 to be closely fitted to the upper groove surface of the reference groove 7201, and then the inclined block 91 is in a state as shown in fig. 12, that is, the inclined block 91 does not completely fill the inclined groove 7202.

The heating pipe 4 is positioned on the lifting plate 2, and the cooling pipe 41 is positioned on the lower surface of the bearing table 3;

the locking block 1002 arranged below the connecting column 10 is located in the chute 1102, and the connecting column 10 and the horizontal reference plate 5 are in a connected state at the moment, namely, when the horizontal reference plate 5 is lifted, the connecting column 10 and the heating pipe 4 can be synchronously driven to move upwards

The vertical state of the lifting plate 2, the bearing table 3 and the horizontal reference plate 5 is shown in fig. 4;

during adjustment, the adjusting member 51 is rotated first, the adjusting member 51 drives the horizontal reference plates 5 which are connected with each other by screw threads to move upwards, in the process of moving upwards, the connecting column 10 which is connected with each other is driven to move vertically upwards along the direction of the fixing rod 6, then the connecting column 10 moves upwards to penetrate through the lifting plate 2, the heating pipe 4 which is connected with each other is driven to move upwards, meanwhile, the abutting components at the two ends synchronously move upwards, the abutting blocks 8 abut against each corresponding horizontal plate 72, then, the upward movement is continued, in the process of moving upwards, as the abutting blocks 8 already abut against the horizontal plates 72, in the process of continuously moving upwards, the abutting blocks 8 move downwards, namely, the second springs 82 are compressed, at the moment, the elastic force compressed by the second springs 82 abuts against each corresponding horizontal plate 72, and therefore, each horizontal plate 72 is tightly attached to the upper groove surface of the reference groove 7201, because the upper groove surface of the reference groove 7201 is in a horizontal state, the tightly attached horizontal plate 72 is also in a horizontal state, so that the bearing table 3 connected to the supporting column 7 is in a horizontal state, that is, the horizontal plate 72 is tightly attached by the abutting block 8, so that the four supporting columns 7 connected with the horizontal plate 72 are tightly attached to the groove surface of the reference groove 7201, that is, the bearing table 3 is in a horizontal state, then the adjusting piece 51 stops rotating, at this time, the adjusting threaded rod 21 rotates, so that the threaded rod 21 drives the lifting plate 2 in threaded connection to move up and down, then the table surface of the bearing table 3 is adjusted to be in contact with the nozzle of the spray head 101, then the adjusting piece 51 is adjusted, so that the horizontal reference plate 5 moves up by one end distance, at this time, the conical block 9 moves into the conical groove 901, the head of the conical block 9 abuts against the inclined block 91, that is after continuous upward extrusion, the conical head of the conical block 9 is abutted against the inclined block 91, so that the inclined block 91 moves in the inclined groove 7202, in the process of moving in the inclined groove 7202, due to the inclined plane effect of the inclined block 91, the horizontal plate 72 can be gradually extruded to move downwards for a certain distance, the moved position is shown in figure 13, the horizontal plate 72 moves downwards for a certain distance integrally, so that the connected supporting column 7 moves downwards for a certain distance integrally, namely, a certain distance is formed between the bearing table 3 and the spray head 101, the distance is about the thickness of a piece of paper, so that the distance between the bearing table 3 and the spray head 101 can be synchronously adjusted, because the whole bearing table 3 moves downwards for a certain distance by the extrusion force of the inclined block 91, the bearing table 3 which moves downwards is still in a horizontal state, and then the heating pipe 4 is positioned below the bearing table 3 and is contacted with the lower part of the bearing table 3, namely, the cooling pipe 41 connected with the adjusting column 411 moves downwards without contacting with the bearing platform 3, then the heating pipe 4 is started, so that the heating pipe 4 heats the bearing platform 3, when the heating pipe is heated to a preset temperature, the heating is stopped, then spraying modeling can be carried out, when spraying is carried out, the supporting force of the bearing platform 3 is the sum of the elastic forces of the first spring 71 and the second spring 82, meanwhile, the bearing platform 3 can be ensured to be in an elastic supporting state, when the spraying is finished and needs to be taken out, the adjusting blocks 1101 are directly and respectively shifted towards two sides, so that the adjusting blocks 1101 drive the connected sliding blocks 11 to move towards the direction close to the locking blocks 1002, the moving blocks move downwards towards the direction separated from the sliding chutes 1102, namely are not limited by the sliding chutes 1102, then move downwards under the gravity of the heating pipe 4, namely, the heating pipe 4 moves downwards, then the same heating pipe 4 drives the cooling pipe 41 to move upwards under the linkage of the adjusting column 411, thereby the cooling pipe 41 moves up to the lower part of the bearing platform 3 and contacts with the lower surface of the bearing platform 3, then the cooling pipe 41 is started, the cooling pipe 41 cools the annular periphery of the bearing platform 3 inwards gradually, thereby the temperature between the bottom of the product and the bearing platform 3 is reduced gradually, the bonding performance is reduced, then the product can be taken out conveniently, then the bottom of the product can be quickly separated from the bearing platform 3 by using a small shovel, therefore, through the arrangement of the cooling pipe 41 and the heating pipe 4, the bonding performance between the first layer and the bearing platform 3 can be increased when the first layer is sprayed, after the product is formed, the product can be taken out conveniently by reducing the temperature of the bearing platform 3 through the cooling pipe 41, the condition that the working personnel are scalded is reduced, then when the next product is manufactured, the two connecting columns 10 are directly pushed upwards, so that the locking blocks 1002 of the two connecting posts 10 are inserted into the sliding slots 1102, and the manufacturing process can be continued.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. The utility model provides an efficient FDM3D printing device, includes a printing box (1), vertical slip is provided with lifter plate (2) and is located plummer (3) of lifter plate (2) top in the printing box (1), its characterized in that: the bearing table (3) is movably supported on the lifting plate (2) through an elastic supporting piece, and a plurality of vertical column assemblies are further arranged on the bottom surface of the bearing table (3);

the bearing platform is characterized by further comprising a horizontal reference plate (5) arranged in parallel with the lifting plate (2), wherein a plurality of abutting assemblies are arranged on the horizontal reference plate (5), each abutting assembly and the vertical column body assembly are arranged in a one-to-one correspondence mode, the horizontal reference plate (5) is driven by a driving device to vertically move upwards so that the abutting assemblies abut against the vertical column body assemblies, and the bearing platform (3) and the horizontal reference plate (5) are arranged in parallel.

2. An efficient FDM3D printing device according to claim 1, wherein the elastic support is a first spring (71), the first spring (71) is sleeved on a vertical cylinder, the vertical cylinder assembly comprises a supporting column (7) and a horizontal plate (72) fixedly arranged below the supporting column (7), the upper end of the supporting column (7) is connected to the carrier (3), and the first spring (71) is located between the carrier (3) and the lifting plate (2).

3. An efficient FDM3D printing apparatus according to claim 2, wherein the support posts (7) extend through the lifting plate (2), and the horizontal plate (72) is located in the reference grooves (7201) under the force of the first springs (71).

4. An efficient FDM3D printing apparatus according to claim 1, wherein the ends of the support posts (7) are pivotally attached to the carrier (3).

5. An efficient FDM3D printing device according to claim 1, wherein the horizontal reference plate (5) is vertically slidably arranged below the lifting plate (2) through a fixing rod (6), and the driving device is arranged below the horizontal reference plate (5) to drive the horizontal reference plate (5) to reciprocate vertically.

6. An efficient FDM3D printing device according to claim 1, wherein the abutting assembly comprises an abutting block (8) vertically slidably disposed on the horizontal reference plate (5) and a threaded column (81) slidably connected in the abutting block (8), the outer wall of the threaded column (81) is sleeved with a second spring (82), and the threaded column (81) is screwed on the horizontal reference plate (5).

7. An efficient FDM3D printing device according to claim 6, wherein the abutting block (8) protrudes above the horizontal reference plate (5) and abuts on the horizontal plate (72) under the elastic force of the second spring (82).

8. An efficient FDM3D printing device according to claim 7, wherein a plurality of inclined grooves (7202) are formed above the horizontal plate (72), an inclined block (91) is slidably disposed along an inclined plane in each inclined groove (7202), and when all the inclined blocks (91) are filled in the inclined grooves (7202), the horizontal plate (72) can move downwards for a certain distance.

9. An efficient FDM3D printing device according to claim 7, wherein a plurality of tapered blocks (9) matched with the tapered slots (901) are fixedly mounted above the horizontal reference plate (5), and when the tapered blocks (9) abut into the tapered slots (901), the tapered blocks (9) can abut against the inclined blocks (91) so that the inclined blocks (91) fill the inclined slots (7202).

10. An efficient FDM3D printing apparatus according to claim 7, wherein the height of said abutment block (8) is greater than the height of said conical block (9).