CN219806472U - Material adding device of 3D printer - Google Patents

Abstract

The utility model relates to the field of 3D printing, in particular to a material adding device for a 3D printer. Including support, elevating platform and cistern, be connected with lever and air pump on the support, the elevating platform is close to support side fixedly connected with connecting strip, and connecting strip one side is pressed the lever top, lever keep away from connecting strip one side fixedly connected with bearing block, the cistern with through the pipe intercommunication between the air pump, the lever both sides all rotate and are connected with the longeron, and the air pump both sides are equipped with touch electrovalve, inlet pipe and discharging pipe, and inlet pipe end-to-end connection has the feeding case, and discharging pipe end-to-end connection has the discharging case. By using the air pump with two touch type electric valves, the automatic filling function of the 3D printing material can be realized. The combination of the lever, the connecting strip and the bearing block ensures that the feeding and discharging functions can be used only when the lifting platform is in the highest or lowest state. The pneumatic valve that sets up on the discharging case is after the collection waste material finishes, guarantees can not form negative pressure damage printer, safety and stability.

Description

Material adding device of 3D printer

Technical Field

The utility model belongs to the technical field of 3D printing, and particularly relates to a material adding device for a 3D printer.

Background

The 3D printing technology, namely one of the rapid prototyping technologies, is a technology for constructing objects by using powdery metal or plastic and other bondable materials based on digital model files in a layer-by-layer printing mode. The photocuring 3D printer using the liquid smooth resin as the raw material is common, the 3D printing function is realized by feeding the printing materials into the printer body and inputting the model data to be printed, the cost of the used raw material liquid smooth resin is low, and meanwhile, better printing performance than that of a common printer can be provided.

One chinese patent with publication number CN217944345U discloses a material adding device of 3D printer, including light curing printer body, material adding device main part and controller, light curing printer body is including the cistern, a pedestal, a light source, lift shaping platform and body frame, light curing printer body's both sides are provided with material adding device main part, automatic feed mechanism in the material adding device main part is including the material case, the feed liquor pump body, feeding pipeline and drain pipe, the device possesses automatic material and adds and automatic material recovery's function, simultaneously through a plurality of groups of photochemical resin box that set up, the body frame, can realize the automatic interpolation and the recovery of polychrome liquid photochemical resin, the practicality of light curing printer body has been promoted greatly, can reach the multi-functional.

The material adding device of the 3D printer has the advantages that the functions of automatically adding materials and automatically recycling residual materials are achieved, two air pumps are required to be installed, and the use cost is high. And because the influence of outside air, foretell printer automatic collection waste material function is simple, and the phenomenon that partial waste material was not collected to the material incasement because of the adhesion in the cistern can appear, and the waste material remains inside the printer organism, influences subsequent printing effect, if not in time manual clearance, can influence the subsequent normal use of printer even.

Disclosure of Invention

In order to make up for the defects of the prior art, the utility model provides a material adding device of a 3D printer.

The technical scheme adopted for solving the technical problems is as follows: including the support, support top swing joint has the elevating platform, is equipped with the knob on the support, is through rotating the motion of knob control elevating platform vertical direction on the support, and then the height of control elevating platform, support bottom fixedly connected with cistern, support upper end rotation is connected with the lever, fixedly connected with air pump on the support, and the air pump is located the below of lever, the elevating platform is close to support side fixedly connected with connecting strip, connecting strip one side is pressed the lever top, connecting strip one side fixedly connected with bearing block is kept away from to the lever, and the cooperation of connecting strip and bearing block is used and is guaranteed that the lever is in the horizontality all the time when the elevating platform is not in highest point or lowest point. The liquid tank is communicated with the air pump through a conduit, and materials attracted by the air pump are transported into and out of the liquid tank through the conduit. The lever both sides all rotate and are connected with the longeron, and the air pump is close to the longeron both sides and all is equipped with the touch electric valve that corresponds with the longeron, and touch electric valve comprises response piece, pressure sensor and valve, when pressure sensor felt pressure through the response piece, with the signal transmission to the valve on, the valve is closed, when pressure sensor felt pressure, no longer sends the signal of telecommunication, the valve is opened. When the feeding and discharging are not carried out, the touch type electric valve senses the long plate, the electric valve is in a closed state, when the feeding and discharging are carried out, the long plate on one side is completely not contacted with the touch type electric valve, the touch type electric valve does not sense the long plate, and the electric valve is in an open state. The air pump both sides are equipped with inlet pipe and discharging pipe, inlet pipe end fixedly connected with feeding case, discharging pipe end fixedly connected with discharging case. When printing is ready, the air pump generates attractive force, materials required by printing in the feeding box are sucked into the liquid tank through the feeding pipe and begin to be printed, and after printing is finished, residual materials in the liquid tank are sent into the discharging box through the discharging pipe.

Preferably, the feeding pipe is arranged on one side close to the connecting strip, the discharging pipe is arranged on one side close to the bearing block, the feeding box and the discharging box are symmetrically distributed on two sides of the air pump, and a valve is arranged on one side of the discharging box. The feeding case and the discharging case are symmetrically distributed about the air pump, so that the feeding of printing materials and the discharging of waste materials are facilitated, meanwhile, only one of the material cases is influenced during the working of the air pump, and the normal operation of the 3D printer is maintained. The valve that sets up on the discharging case is opened after the garbage collection finishes, avoids the inside negative pressure that appears of cistern, damages the printer organism.

Preferably, the lifting table is internally provided with a sealing surface, the area of the sealing surface is not smaller than the area of the opening of the liquid tank, the bottom of the liquid tank is fixedly connected with a base, the periphery of the base is movably connected with supporting legs, and the bottom of the base is movably connected with a light source. When the lifting platform is lowered to the lowest position in the horizontal direction, the sealing surface is in close contact with the liquid tank, and a closed space is formed in the liquid tank, so that the effect of absorbing waste materials by the air pump is better. Supporting legs around the base make whole 3D printer and place the plane of printer and produce certain distance, can not adhere on the printer surface when unnecessary printing material drops, simultaneously, supporting legs and light source can dismantle, conveniently clean and wash work to base and light source.

Preferably, the touch type electrovalves arranged on two sides of the air pump are distributed in a central symmetry mode, and the lifting stroke of the lifting platform is longer than the longitudinal length of the touch type electrovalves. When the lifting platform is not in the highest or lowest plane in the vertical direction, the long plates on the two sides are always tightly attached to the touch type electrovalve, so that the touch type electrovalve is in a closed state in the rest time except the feeding and discharging stages.

Preferably, the guide pipe extends downwards longitudinally from the bottom of the air pump, extends to the side close to the plane of the base, bends towards two sides and is fixedly connected with two sides of the liquid tank. By using the connecting mode, on one hand, materials absorbed by the air pump are more rapidly and downwards transferred in the guide pipe under the influence of gravity, and on the other hand, the feeding pipe and the discharging pipe are not mixed, so that residual waste materials can be accurately fed into the discharging box.

Preferably, the lifting platform drives the connecting strip to move on the support, the connecting strip adjusting range is up to the top end of the support, and down to the horizontal plane where the connecting strip is located when the lifting platform is attached to the liquid tank. When the lifting platform is in the ascending stage, the lifting platform drives the connecting strip to ascend to the vertical direction together, at the moment, the connecting strip does not press the lever, the lever always guarantees that the long plate is separated from the corresponding touch type electrovalve through the bearing block, the touch type electrovalve on one side of the feeding pipe is in an opening state, the feeding effect is achieved, when the lifting platform is in the descending stage, the lifting platform drives the connecting strip to descend to the vertical direction together, at the moment, the pressure of the connecting strip to the lever gradually increases, and when the pressure maximum value is reached, the lever enables the long plate to be separated from the corresponding touch type electrovalve, the touch type electrovalve on one side of the discharging pipe is in an opening state, and the discharging effect is achieved.

Preferably, the liquid tank is rectangular, tank fillets are arranged around the inside of the liquid tank, and the lifting table, the feeding box and the discharging box are all provided with fillets. The groove fillets of the liquid groove can ensure that no dead angle which is difficult to clean exists when waste collection is carried out. The lifting table, the feeding box and the discharging box are provided with round corners on the outer sides, so that a user is not easy to stab.

The utility model has the beneficial effects that:

1. by using the air pump with two touch type electric valves, the automatic filling function of the 3D printing material can be realized. Simultaneously, the air pump is shared to feed inlet and discharge gate, makes whole device simpler, and the used cost of putting into production is lower.

2. The combination of the lever, the connecting strip and the bearing block can ensure that the feeding and discharging functions can be used only when the lifting platform is in the highest or lowest state, and ensure that the printer can not continuously feed and discharge materials when the lifting platform is at the non-working height, thereby avoiding the phenomenon of wasting materials.

3. The pneumatic valve that sets up on the discharging case has improved the problem that damages the printer because of forming negative pressure after the collection waste material finishes, uses safer stability.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a perspective view of an overall structure;

FIG. 2 is a front view of the integrated mechanism;

FIG. 3 is a top view of the overall structure;

FIG. 4 is a combination view of a lever and an air pump;

FIG. 5 is a combination of a trough and a lift table;

FIG. 6 is a top view of the trough and lift table;

fig. 7 is a rear view of the tapping box.

In the figure: 1. a bracket; 2. a lifting table; 3. a liquid tank; 4. a base; 5. a lever; 6. an air pump; 7. a connecting strip; 8. a bearing block; 9. a conduit; 10. a long plate; 11. a touch-type electrovalve; 12. a feed pipe; 13. a discharge pipe; 14. a feed box; 15. a discharging box; 16. a valve; 17. sealing surfaces; 18. support legs; 19. groove fillets; 20. round corners; 21. a light source; 22. and (5) a knob.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment one:

as shown in fig. 1 to 7, the material adding device of a 3D printer according to the embodiment of the utility model includes a support 1, the top end of the support 1 is movably connected with a lifting platform 2, the support 1 is provided with a knob 22, the lifting platform 2 is controlled to move in the vertical direction on the support 1 by rotating the knob 22, the height of the lifting platform 2 is further controlled, the bottom end of the support 1 is fixedly connected with a liquid tank 3 and a base 4, the upper end of the support 1 is rotatably connected with a lever 5, the support 1 is fixedly connected with an air pump 6, the air pump 6 is positioned below the lever 5, the lifting platform 2 is fixedly connected with a connecting strip 7, one side of the connecting strip 7 is pressed at the top of the lever 5, one side of the lever 5, which is far away from the connecting strip 7, is fixedly connected with a bearing block 8, the liquid tank 3 is communicated with the air pump 6 by a conduit 9, two sides of the lever 5 are rotatably connected with a long plate 10, the air pump 6 is near two sides of the long plate 10 are respectively provided with a touch electric valve 11 corresponding to the long plate 10, the touch electric valve 11 is composed of an induction block, a pressure sensor and a valve, when the pressure sensor senses the pressure by the induction block, the pressure sensor senses the pressure, the valve is positioned below the lever 5, the lever is fixedly connected with a connecting strip, and a connecting strip, a connecting bar, and a connecting bar is connected with a connecting bar by a connecting valve, and by and a valve. When feeding and discharging are not carried out, the touch type electric valve 11 senses the long plate 10, the touch type electric valve 11 is in a closed state, and when feeding and discharging are carried out, the long plate 10 on one side is completely not contacted with the touch type electric valve 11, the touch type electric valve 11 does not sense the long plate 10, and the touch type electric valve 11 is in an open state. The air pump 6 both sides are equipped with inlet pipe 12 and discharging pipe 13, and inlet pipe 12 end fixedly connected with feeding case 14, discharging pipe 13 end fixedly connected with discharging case 15. When printing is ready, the air pump 6 generates attractive force, materials required for printing in the feeding box 14 are sucked into the liquid tank 3 through the feeding pipe 12 and begin to be printed, and after printing is finished, residual materials in the liquid tank 3 are sent into the discharging box 15 through the discharging pipe 13.

The inlet pipe 12 is located near connecting strip 7 one side, and discharging pipe 13 is located near bearing block 8 one side, and feeding case 14 and discharging case 15 are the both sides of symmetric distribution in air pump 6, and discharging case 13 one side is equipped with valve 16. The feeding box 14 and the discharging box 15 are symmetrically distributed about the air pump 6, so that the feeding of printing materials and the discharging of waste materials are facilitated, and if the feeding box lacks materials or the discharging box is fully piled with waste materials, a user can conveniently replace new materials or clean waste materials. Meanwhile, when the air pump 6 runs, only one material box is matched with the air pump to work, so that the 3D printer can be guaranteed to run normally in the printing process. After the printing process and the waste collection process are finished, if negative pressure appears in the liquid tank 3, the liquid tank and the lifting table are not separated manually, when the situation appears, the valve 16 arranged on the discharging box 15 is opened, a new air circulation port is formed in the liquid tank 3, the liquid tank 3 and the lifting table 2 are separated normally, and the printer body is prevented from being damaged.

The lifting table 2 is internally provided with a sealing surface 17, the area of the sealing surface 17 is not smaller than the area of the opening of the liquid tank 3, the bottom of the liquid tank 3 is fixedly connected with the base 4, the periphery of the base 4 is movably connected with supporting legs 18, and the bottom of the base is movably connected with a light source 21. When the lifting platform 2 is lowered to the lowest position in the horizontal direction, the sealing surface 17 is in close contact with the liquid tank 3, so that the liquid tank 3 and the lifting platform 2 are combined into a closed space, and the air pump 6 can not continuously suck external air when absorbing waste in the liquid tank 3, so that the air pump 6 can absorb the waste more quickly and effectively. The supporting legs 18 around the base 4 enable the whole 3D printer to be at a certain distance from the plane on which the printer is placed, if a small part of materials fall out of the liquid tank in the feeding or discharging process, the materials can fall on the plane on which the printer is placed, the quantity of materials possibly adhered to the surface of the printer is reduced, and meanwhile, the base 4 and the light source 21 of the printer can be wiped and cleaned by disassembling the supporting legs 18, so that the printer is kept clean.

The touch type electrovalves 11 arranged on the two sides of the air pump 6 are distributed in a central symmetry mode, and the lifting stroke of the lifting table 2 is longer than the longitudinal length of the touch type electrovalves 11. When the lifting table 2 is not in the highest or lowest plane in the vertical direction, the long plates 10 on two sides are always tightly attached to the touch type electric valve 11, so that the touch type electric valve 11 is in a closed state in the rest time except the feeding and discharging stages, and the problem that when the printer is not required to feed or discharge, the air pump erroneously attracts materials into the liquid tank to cause printing errors or printing failures is avoided.

The guide pipe 9 extends downwards longitudinally from the bottom of the air pump 6 to the side close to the plane of the base, bends towards two sides and is fixedly connected with two sides of the liquid tank 3. By using the connection mode, on one hand, the materials absorbed by the air pump 6 are more rapidly transferred downwards in the guide pipe 9 under the influence of gravity, and on the other hand, the feeding pipe 12 and the discharging pipe 13 are not mixed, so that the residual waste materials can be accurately fed into the discharging box 15.

The lifting table 2 drives the connecting strip 7 to move on the support 1, the adjusting range of the connecting strip 7 is up to the top end of the support 1, and the connecting strip 7 is down to the horizontal plane where the lifting table 2 is positioned when being attached to the liquid tank 3. When the lifting platform 2 is in the lifting stage, the lifting platform 2 drives the connecting strip 7 to lift up to the vertical direction together, at the moment, the connecting strip does not press the lever 5, the lever 5 always guarantees that the long plate 10 is separated from the corresponding touch type electrovalve 11 through the bearing block 8, the corresponding long plate 10 cannot be sensed by the touch type electrovalve 11 on one side of the feeding pipe 12, the lifting platform is converted into the opening state from the closing state, meanwhile, the lifting platform is always in the closing state with the touch type electrovalve 11 on one side of the discharging pipe 13, the feeding box is communicated with the air pump, and printing materials in the feeding box are transferred into the liquid tank, so that the feeding effect is achieved. When the lifting table 2 is in the descending stage, the lifting table 2 drives the connecting strip 7 to descend downwards along with the vertical direction, at the moment, the pressure of the connecting strip 7 to the lever 5 gradually increases, when the pressure reaches the maximum value, the lever 5 enables the long plate 10 to be separated from the corresponding touch type electrovalve 11, the corresponding long plate 10 cannot be sensed by the touch type electrovalve 11 on one side of the discharging pipe 13, the touch type electrovalve 11 on one side of the discharging pipe 13 is converted into the opening state from the closing state, the touch type electrovalve 11 on one side of the discharging pipe 13 is in the opening state, meanwhile, the touch type electrovalve 11 on one side of the feeding pipe 12 is always in the closing state, the discharging box is communicated with the air pump, and printing waste in the liquid tank is transferred into the discharging box, so that the discharging effect is achieved.

Embodiment two:

as shown in fig. 6 and 7, the liquid tank 3 is rectangular, tank fillets 19 are arranged around the inside of the liquid tank 3, and round corners 20 are arranged on the lifting table 2, the feeding tank 14 and the discharging tank 15. The groove fillets 19 of the liquid bath 3 ensure that no dead corners are present which are difficult to clean during the collection of the waste. The lifting platform 2, the feeding box 14 and the discharging box 15 are provided with round corners 20 on the outer sides, so that a user is not easy to stab.

Working principle: the lifting table 2 is moved to the top end of the bracket 1 in the vertical direction by using the knob 22, at this time, the long plate 10 at one side of the feeding pipe 12 and the corresponding touch-type electric valve 11 thereof are not contacted at all, the touch-type electric valve 11 is opened, the air pump 6 sucks the printing material in the feeding box 14, and the printing material is transferred to the liquid tank 3 of the printer through the guide pipe 9 and starts printing. After printing, the lifting table 2 is downwards moved to a height at which the lifting table 2 is contacted with the liquid tank 3 and a closed space is formed by using the knob 22, at the moment, the long plate 10 on one side of the discharging pipe 13 is not contacted with the corresponding touch type electrovalve 11, the touch type electrovalve 11 is opened, the air pump 6 sucks the residual waste materials in the liquid tank 3, and the waste materials are transferred to the discharging box 15 through the guide pipe 9, so that the collection work of the waste materials is completed. And then a valve 16 on the discharging box 15 is opened to avoid negative pressure formed between the lifting table 2 and the liquid tank 3 and damage to the printer body. Wherein, except for the stage of starting printing and collecting waste, the long plates 10 at two sides are respectively separated from the corresponding touch type electrovalves 11, and are contacted with the corresponding touch type electrovalves 11 in other states, so that the closing of the touch type electrovalves 11 is kept.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims (6)

1. The utility model provides a material interpolation device of 3D printer, includes support (1), its characterized in that: support (1) top swing joint has elevating platform (2), support (1) bottom fixedly connected with cistern (3), support (1) upper end rotates and is connected with lever (5), fixedly connected with air pump (6) on support (1), air pump (6) are located the below of lever (5), elevating platform (2) are close to support side fixedly connected with connecting strip (7), connecting strip (7) one side is pressed lever (5) top, connecting strip (7) one side fixedly connected with supporting piece (8) are kept away from to lever (5), cistern (3) with through pipe (9) intercommunication between air pump (6), lever (5) both sides all rotate and are connected with longboard (10), air pump (6) both sides all are equipped with touch electric valve (11) that correspond with longboard (10), air pump (6) both sides are equipped with inlet pipe (12) and discharging pipe (13), inlet pipe (12) end fixedly connected with discharging case (14), discharging pipe (13) end fixedly connected with discharging case (15).

2. The material adding device of the 3D printer according to claim 1, wherein: the feeding pipe (12) is located on one side, close to the connecting strip (7), of the feeding box (14), the discharging pipe (13) is located on one side, close to the bearing block (8), of the discharging box (15), the feeding box (14) and the discharging box (15) are symmetrically distributed on two sides of the air pump (6), and a valve (16) is arranged on the outer surface of the discharging box (15).

3. The material adding device of the 3D printer according to claim 1, wherein: the lifting table is characterized in that a sealing surface (17) is arranged at the bottom of the lifting table (2), the area of the sealing surface (17) is not smaller than the area of an opening of the liquid tank (3), a base (4) is fixedly connected to the bottom of the liquid tank (3), and supporting legs (18) are movably connected around the base (4).

4. The material adding device of the 3D printer according to claim 1, wherein: the touch type electrovalve (11) is distributed in bilateral symmetry about the middle point of the air pump (6), and the lifting stroke of the lifting table (2) is larger than the longitudinal length of the touch type electrovalve (11).

5. The material adding device of the 3D printer according to claim 1, wherein: the guide pipes (9) are respectively communicated with two sides of the liquid tank (3).

6. The material adding device of the 3D printer according to claim 1, wherein: the liquid tank (3) is rectangular, tank inner corners (19) are arranged around the inside of the liquid tank (3), and round corners (20) are arranged at the corners of the lifting table (2), the feeding box (14) and the discharging box (15).