Convenient-to-adjust material spraying device for 3D printing

Abstract

The utility model discloses a 3D printing material spraying device convenient to adjust, and relates to the technical field of 3D printing material spraying, the 3D printing material spraying device comprises a material storage tank, the top of the material storage tank is provided with a hydraulic rod, the output end of the hydraulic rod is fixedly connected with a pushing piston, and the pushing piston is slidably connected to the interior of the material storage tank; a discharging hopper is fixedly connected to the bottom of the storage tank, a connecting ring is fixedly connected to the bottom end of the discharging hopper, a clamping ring is fixedly connected to the bottom of the connecting ring, a fixing column is fixedly connected to the side of the discharging hopper, a first rotating piece is rotatably connected to the bottom of the fixing column, and a rotating column is fixedly connected to the bottom of the first rotating piece. And spray head assemblies are arranged on the side of the rotating column at equal angles, the spray head assemblies are provided with discharging openings with different hole diameters, and the spray head assemblies with the discharging openings with different thicknesses are aligned to the lower portion of the discharging hopper by rotating the rotating column, so that the thickness of materials sprayed out during 3D printing can be adjusted conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to 3D printing material spraying technical field, concretely to a 3D printing is with convenient adjustment's material spraying device. BACKGROUND

[0002] 3D printing is based on discrete - accumulation principle. First, the three -dimensional design software is utilized to create the three -dimensional model of object, or the three -dimensional data of existing object is obtained through three -dimensional scanning equipment, and these data form the basic digital model file of 3D printing. Then, the digital model file is imported into 3D printer, and the printer forms three -dimensional entity according to the layering information of model, and material is stacked layer by layer according to certain path and mode.

[0003] In the Chinese patent CN212684736U, the utility model belongs to 3D printer technical field, specifically discloses a 3D printing is with convenient adjustment's material spraying device, including material box and baffle, the top of material box is provided with box cover, the top of box cover is provided with dust cover, the lower of motor is swingly connected with stirring rod, the left and right sides of material box are all connected with fixed link, the inside of sliding block is provided with fixed hole, the inside of push rod is provided with reset spring, this 3D printing is with convenient adjustment's material spraying device, compared with the existing ordinary 3D printing is with material spraying device, setting sliding block and the sliding movement of the slide rail installed in printer, so that the nozzle below the material box is moved, can be sprayed to the product corner and print, set electric control valve can control the flow rate of raw materials in material box, the impurities in raw materials can be filtered out through the filter screen, improve the printing quality.

[0004] The above-mentioned 3D printing material spraying device cannot adjust the aperture of the material spraying port, and the consistency of the ejected raw materials is thick or thin, which leads to the problem that the extruded raw materials are too thick in plastic printing, the precision is not enough, or the extruded raw materials are too thin in filling, and the filling efficiency is too low.

[0005] In view of the above problems, a 3D printing material spraying device with convenient adjustment is proposed. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a 3D printing material spraying device with convenient adjustment, which solves the problem that the aperture of the material spraying port cannot be adjusted in the background technology, the consistency of the ejected raw materials is thick or thin, which leads to the problem that the extruded raw materials are too thick in plastic printing, the precision is not enough, or the extruded raw materials are too thin in filling, and the filling efficiency is too low.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a kind of D printing is conveniently adjusted and is sprayed material device, including storage tank, the top of the storage tank is equipped with hydraulic rod, and the output end of hydraulic rod is fixedly connected with push piston, the push piston is slidably connected in the inside of storage tank, the bottom of the storage tank is fixedly connected with hopper, the bottom of the hopper is fixedly connected with connecting ring, and the bottom of connecting ring is fixedly connected with snap-in ring, the side of the hopper is fixedly connected with fixed column, and the bottom of fixed column is rotatably connected with first rotating piece, the bottom of the first rotating piece is fixedly connected with rotating column, the side of rotating column is arranged with spray head assembly at equal angle, and spray head assembly is equipped with different aperture size of discharge port.

[0008] Preferably, the snap-in ring is externally clamped and connected with a spray column, the spray column has a receiving port and a discharge port formed in the interior thereof, the receiving port and the discharge port are in communication, and the receiving port is in communication with the hopper through the connecting ring.

[0009] Preferably, the bottom of the spray column is fixedly connected with a spray nozzle, and the spray nozzle is in communication with the discharge port.

[0010] Preferably, the side of the spray column is provided with a sliding groove, a fastening screw rod penetrates through the interior of the sliding groove, and the fastening screw rod is rotatably connected with the spray column, the top end of the fastening screw rod is fixedly connected with a second rotating piece, the second rotating piece is embedded in the interior of the spray column, and the second rotating piece is rotatably connected with the spray column.

[0011] Preferably, the fastening screw rod is externally threadedly connected with a T-shaped sliding block, the T-shaped sliding block is slidably connected in the interior of the sliding groove, the side of the T-shaped sliding block is fixedly connected with a connecting rod, and the end of the connecting rod away from the T-shaped sliding block is fixedly connected with the rotating column.

[0012] Preferably, the side of the storage tank is fixedly connected with a feed pipe, and a control assembly is mounted in the interior of the feed pipe, the control assembly comprises a spring, the spring is embedded in the interior of the feed pipe, one end of the spring is fixedly connected with the feed pipe, the other end of the spring is fixedly connected with a ball plug, the exterior of the ball plug is nested with a valve seat, and the valve seat is fixedly connected in the interior of the feed pipe.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model provides a kind of 3D printing is conveniently adjusted and sprays material device, by rotating rotating column, the nozzle assembly with the different thickness of blanking outlet is aligned under the blanking hopper, it is convenient to be able to realize the thickness of the material that sprays during 3D printing is adjusted, for the large-area filling part of model, it can use larger spray material orifice aperture, extrude a large amount of material quickly, improve filling speed, shorten printing time, and on the surface detail of model or key structure part, then use smaller aperture to carry out fine printing, realize the organic combination of quick filling and fine processing, while guaranteeing printing quality, improve overall printing efficiency, accurately adjust spray material orifice aperture, can be according to the actual demand of model, accurately control the extrusion amount of material, avoid waste due to aperture being too large and causing material to be extruded excessively, for some expensive printing materials, such as metal powder, high-performance polymer etc., reduce material waste can significantly reduce printing cost. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall cross-sectional structure schematic diagram of the utility model;

[0016] Figure 2 It is the overall three-dimensional structure schematic diagram of the utility model;

[0017] Figure 3 It is the cross-sectional structure schematic diagram of the nozzle assembly part of the utility model;

[0018] Figure 4 It is the three-dimensional structure schematic diagram of the rotating column side part of the utility model;

[0019] Figure 5 It is the cross-sectional structure schematic diagram of the direction control component part of the utility model.

[0020] In the drawing: 1, storage tank;2, hydraulic rod;3, push piston;4, nozzle assembly;5, feed pipe;6, direction control component;7, fixed column;8, first rotating piece;9, rotating column;10, blanking hopper;11, connecting ring;12, clamping ring;401, connecting rod;402, T-shaped slider;403, spray material column;404, receiving port;405, blanking outlet;406, spray nozzle;407, fastening screw;408, second rotating piece;409, sliding slot;601, spring;602, ball plug;603, valve seat. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings of the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0022] In order to further understand the content of the present application, the present application will be described in detail with reference to the accompanying drawings.

[0023] Embodiment one

[0024] Please refer to Figures 1 to 5 The utility model discloses a 3D prints with the easy -to -adjust material spraying device, including the storage tank 1, the top of storage tank 1 is installed with hydraulic pressure rod 2, and the output of hydraulic pressure rod 2 is fixedly connected with push piston 3, push piston 3 is connected in the inside of storage tank 1 slidingly, the bottom of storage tank 1 is fixedly connected with the hopper 10, the bottom of hopper 10 is fixedly connected with the connecting ring 11, and the bottom of connecting ring 11 is fixedly connected with the snap -in ring 12, and the side of hopper 10 is fixedly connected with fixed column 7, and the bottom of fixed column 7 is rotatably connected with first rotary piece 8, and the bottom of first rotary piece 8 is fixedly connected with rotary column 9, and rotary column 9's side is arranged with the equal angle of spray head subassembly 4, and spray head subassembly 4 is equipped with the different aperture size of discharge port 405.

[0025] The outside of snap -in ring 12 is clamped and is connected with the material spraying column 403, and the inside of material spraying column 403 is provided with the receiving port 404 and the discharge port 405, and the receiving port 404 is communicated with the discharge port 405, and the receiving port 404 is communicated with hopper 10 through connecting ring 11, and the bottom of material spraying column 403 is fixedly connected with the material spraying nozzle 406, and the material spraying nozzle 406 is communicated with the discharge port 405, and the side of material spraying column 403 is provided with the sliding groove 409, and the inside of sliding groove 409 is penetrated with the fastening screw rod 407, and the fastening screw rod 407 is rotatably connected with material spraying column 403, and the top of fastening screw rod 407 is fixedly connected with second rotary piece 408, and second rotary piece 408 is embedded in the inside of material spraying column 403, and second rotary piece 408 is rotatably connected with material spraying column 403, and the outside of fastening screw rod 407 is threadedly connected with T -type sliding block 402, and T -type sliding block 402 is slidingly connected in the inside of sliding groove 409, and the side of T -type sliding block 402 is fixedly connected with connecting rod 401, and the end away from T -type sliding block 402 of connecting rod 401 is fixedly connected with rotary column 9.

[0026] When it is necessary to adjust the thickness of the material sprayed according to the printing requirements, just rotate the rotating column 9, make the nozzle assembly 4 equipped with the corresponding aperture size discharge port 405 align directly below the clamping ring 12, at this time rotate the fastening lead screw 407, because the fastening lead screw 407 is in threaded connection with the T-shaped slider 402, and the height of the T-shaped slider 402 will not change, and then the spray material column 403 can move upward under the action of the fastening lead screw 407, so that the groove at the top of the spray material column 403 corresponds to the clamping ring 12, so that the connecting ring 11 and the receiving port 404 are connected together, at this time start the hydraulic rod 2, the output end of the hydraulic rod 2 with the push piston 3 moves downward, extruding the material in the inside of the storage tank 1, and then the material can be finally sprayed from the spray nozzle 406 through the discharge hopper 10, the connecting ring 11, the receiving port 404 and the discharge port 405, and 3D printing is carried out.

[0027] The side of the storage tank 1 is fixedly connected with the feeding pipe 5, and the inside of the feeding pipe 5 is provided with the control assembly 6, the control assembly 6 comprises a spring 601, and the spring 601 is embedded in the inside of the feeding pipe 5, one end of the spring 601 is fixedly connected with the feeding pipe 5, and the other end of the spring 601 is fixedly connected with a ball plug 602, the outside of the ball plug 602 is nested with a valve seat 603, and the valve seat 603 is fixedly connected in the inside of the feeding pipe 5.

[0028] The molten material is transported into the inside of the storage tank 1 through the feeding pipe 5 for replenishment, when the hydraulic rod 2 with the push piston 3 moves upward, the inside of the storage tank 1 is in a negative pressure state, the ball plug 602 is separated from the valve seat 603, and then the material can be transported into the inside of the storage tank 1 through the feeding pipe 5, when the hydraulic rod 2 with the push piston 3 moves downward, under the action of the spring 601, the ball plug 602 is clamped in the inside of the valve seat 603, and is blocked, thereby preventing the material in the inside of the storage tank 1 from flowing back into the inside of the feeding pipe 5.

[0029] It should be noted that in this text, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0030] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A conveniently adjustable material spraying device for 3D printing, characterized in that: Including the storage tank (1), the top of the storage tank (1) is provided with a hydraulic rod (2), and the output end of the hydraulic rod (2) is fixedly connected with a push piston (3), the push piston (3) is slidingly connected in the inside of the storage tank (1), the bottom of the storage tank (1) is fixedly connected with a lower hopper (10), the bottom end of the lower hopper (10) is fixedly connected with a connecting ring (11), and the bottom of the connecting ring (11) is fixedly connected with a clamping ring (12), the side of the lower hopper (10) is fixedly connected with a fixed column (7), and the bottom of the fixed column (7) is rotatably connected with a first rotating piece (8), the bottom of the first rotating piece (8) is fixedly connected with a rotating column (9), the side of the rotating column (9) is arranged with a nozzle assembly (4) at equal angles, and the nozzle assembly (4) is provided with a lower outlet (405) with different hole diameters.

2. A conveniently adjustable material spraying device for 3D printing according to claim 1, characterized in that: The outside of the clamping ring (12) is clamped with a spraying column (403), the inside of the spraying column (403) is provided with a receiving port (404) and a lower outlet (405), the receiving port (404) and the lower outlet (405) are communicated, and the receiving port (404) is communicated with the lower hopper (10) through the connecting ring (11).

3. A conveniently adjustable material spraying device for 3D printing according to claim 2, characterized in that: The bottom of the spraying column (403) is fixedly connected with a spraying nozzle (406), and the spraying nozzle (406) is communicated with the lower outlet (405).

4. A convenient adjustable material spraying device for 3D printing according to claim 2, characterized in that: The side of the spraying column (403) is provided with a sliding groove (409), the inside of the sliding groove (409) penetrates a fastening screw rod (407), and the fastening screw rod (407) is rotatably connected with the spraying column (403), the top end of the fastening screw rod (407) is fixedly connected with a second rotating piece (408), the second rotating piece (408) is embedded in the inside of the spraying column (403), and the second rotating piece (408) is rotatably connected with the spraying column (403).

5. A conveniently adjustable material spraying device for 3D printing according to claim 4, characterized in that: The outside of the fastening screw rod (407) is threadedly connected with a T-shaped sliding block (402), the T-shaped sliding block (402) is slidingly connected in the inside of the sliding groove (409), the side of the T-shaped sliding block (402) is fixedly connected with a connecting rod (401), and the end of the connecting rod (401) away from the T-shaped sliding block (402) is fixedly connected with the rotating column (9).

6. A convenient adjustable material spraying device for 3D printing according to claim 1, characterized in that: The side of the storage tank (1) is fixedly connected with a feeding pipe (5), and the inside of the feeding pipe (5) is provided with a control assembly (6), the control assembly (6) comprises a spring (601), and the spring (601) is embedded in the inside of the feeding pipe (5), one end of the spring (601) is fixedly connected with the feeding pipe (5), the other end of the spring (601) is fixedly connected with a ball plug (602), the outside of the ball plug (602) is nested with a valve seat (603), and the valve seat (603) is fixedly connected in the inside of the feeding pipe (5).

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