Nozzle stable moving mechanism for FGF (Fibroblast Growth Factor) molten particle material printing

Abstract

The utility model discloses a nozzle stable moving mechanism for FGF (Fibroblast Growth Factor) molten granular material printing, which belongs to the field of FGF molten granular materials and comprises a printer main body consisting of a printing platform and a bracket, and the printing platform is arranged on the bracket; according to the nozzle stable moving mechanism for FGF molten particle material printing, the motor, the eccentric wheel, the sliding rod and the spring are arranged, the fixed plate is supported through the effect of the supporting plate, the motor is combined to drive the rotating shaft to rotate, the eccentric wheel is matched, the movable plate is jacked upwards through rotation of the eccentric wheel, and the elastic effect of the sliding rod and the spring is combined; and when the eccentric wheel moves away from the movable plate, the movable plate can automatically reset downwards under the counter-acting force of the spring, so that a printed object on the printing platform is jacked up under the action of repeated up-and-down movement of the movable plate, the object is separated from the printing platform, time and labor are saved, and the printing efficiency is improved. And stable moving work of the nozzle is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to FGF melting granular material technical field, concretely relates to a nozzle stable moving mechanism for FGF melting granular material printing. BACKGROUND

[0002] The melting granular material printing uses granular raw materials, usually plastic or composite materials, these particles are melted and extruded layer by layer through a heated nozzle, thus creating complex customized objects, the working principle of the FGF technology is similar to the common FDM (Fused Deposition Modeling) or FFF (Fused Filament Fabrication) technology, but the key difference lies in that it uses granular raw materials instead of wire, the FGF technology needs a special extruder, the core components of which are screw and barrel, the screw rotates in the barrel to transport plastic particles from the hopper to the nozzle, the extruder usually has multiple heating zones to melt the plastic into a uniform melt and extrude it through the nozzle onto the printing platform.

[0003] The existing melting granular material printing does not have an ejection structure on the printing platform during use, which causes the staff to manually remove the printed object from the platform after printing, and since the object is adhered to the printing platform, the staff needs to exert force to remove it, which is time-consuming and labor-intensive and affects the normal operation of the nozzle. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a nozzle stable moving mechanism for FGF melting granular material printing to solve the problem of the existing melting granular material printing in the prior art, which does not have an ejection structure on the printing platform during use, which causes the staff to manually remove the printed object from the platform after printing, and since the object is adhered to the printing platform, the staff needs to exert force to remove it, which is time-consuming and labor-intensive and affects the normal operation of the nozzle.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a printer main body composed of a printing platform and a support, the printing platform is installed on the support, a hopper is installed at the top end of the support, a channel is formed in the printing platform, a movable plate is arranged in the channel, a U-shaped support plate is installed on the lower surface of the printing platform, two fixed plates are installed on the upper surface of the support plate, a rotating shaft is rotatably installed between the two fixed plates, a motor is installed on one of the fixed plates, one end of the rotating shaft extends out of the fixed plate and is fixedly connected with the output shaft of the motor, an eccentric wheel is installed on the rotating shaft, four slide rods are slidably installed on the support plate, the top end of the slide rod is fixedly connected with the movable plate, a bottom plate is installed at the bottom end of the slide rod, a spring is sleeved on the slide rod and fixedly connected with the bottom plate and the support plate at both ends.

[0006] By means of the above scheme, the motor, eccentric wheel, slide rod and spring are arranged, the fixed plate is supported by the support plate, the motor drives the rotating shaft to rotate, the eccentric wheel is used, the movable plate is lifted up by the rotation of the eccentric wheel, the spring is used, the movable plate is reset downward by the reaction force of the spring when the eccentric wheel is away from the movable plate, the printing object on the printing platform is lifted up by the repeated up-and-down movement of the movable plate, the object is separated from the printing platform, time and labor are saved, and stable movement of the nozzle is ensured.

[0007] In the above scheme, it should be noted that the motor is electrically connected with the external power supply.

[0008] As a preferred embodiment, the left and right sides of the inner wall of the channel are both provided with an intercepting plate, and the upper surface of the intercepting plate is attached to the lower surface of the movable plate.

[0009] By means of the above scheme, the intercepting plate is arranged in the channel, which supports the movable plate and intercepts the downward movement of the movable plate, so that the movable plate and the printing platform are always on the same horizontal plane, and the accuracy of the movement distance of the movable plate is improved.

[0010] As a preferred embodiment, the left and right sides of the bracket are both provided with two mounting plates, and the mounting plates are provided with bolts.

[0011] By means of the above scheme, the mounting plate is arranged, the bolts on the mounting plate are used to fix the printer body, the printer body is prevented from shaking during work, the stability of the nozzle during movement is improved, and the bolts can be loosened at any time.

[0012] As a preferred embodiment, a circular cover plate is arranged above the material cylinder, four positioning grooves are arranged on the upper surface of the material cylinder, a positioning pin is arranged in each positioning groove, and the top end of the positioning pin is fixedly connected with the cover plate.

[0013] By means of the above scheme, the cover plate and the positioning pin are arranged, the top end of the material cylinder is timely blocked and covered by the cover plate, impurities are prevented from entering the material cylinder during printing, the cover plate is fixed on the material cylinder by the positioning pin, and the stability of the cover plate is improved.

[0014] As a preferred implementation form, the upper surface of the support is slidably provided with an L-shaped plate through a sliding assembly, a connecting rod is slidably installed on the horizontal part of the L-shaped plate, the bottom end of the connecting rod is fixedly connected with the cover plate, and the top end of the connecting rod is provided with a pulling plate.

[0015] By adopting the above scheme, the L-shaped plate and the connecting rod are arranged, the connecting rod is supported by the L-shaped plate, the connecting rod is supported above the cover plate, the connecting rod is fixedly connected with the cover plate, the connecting rod is moved by the pulling plate, the cover plate is driven to move up and down, the cover plate is moved conveniently, the structure is simple, and the operation is convenient.

[0016] As a preferred implementation form, the sliding assembly comprises a wedge-shaped plate, the upper surface of the support is provided with a wedge-shaped groove, and the wedge-shaped plate is slidably installed in the wedge-shaped groove.

[0017] By adopting the above scheme, the wedge-shaped plate is arranged, the L-shaped plate can be moved at the top end of the support by the sliding action of the wedge-shaped plate in the wedge-shaped groove, and after the cover plate is opened, the cover plate is moved to one side, so that the cover plate does not affect the feeding work.

[0018] As a preferred implementation form, the right side of the front side of the vertical part of the support is provided with an open-top placing frame, and the placing frame is provided with a scraper.

[0019] By adopting the above scheme, the placing frame and the scraper are arranged, the scraper is stored by the placing frame, the nozzle after printing is cleaned of residual particles by the scraper, the residual particles are prevented from blocking the nozzle, the stability of the nozzle during movement is improved, and the nozzle can be used for printing for a long time.

[0020] Compared with the prior art, the utility model has the advantages that:

[0021] The nozzle stable moving mechanism for FGF molten particle printing is provided with a motor, an eccentric wheel, a sliding rod and a spring, the fixed plate is supported by the supporting plate, the motor drives the rotating shaft to rotate, the eccentric wheel is used, the movable plate is lifted up by the rotation of the eccentric wheel, the elastic force of the sliding rod and the spring is used, when the eccentric wheel is away from the movable plate, the movable plate is reset downward by the elastic force of the spring, the printing object on the printing platform is lifted up by the repeated upward and downward movement of the movable plate, the object is separated from the printing platform, time and labor are saved, the nozzle is stably moved, and the work is ensured.

[0022] The FGF molten granular material printing nozzle stable moving mechanism is provided with an intercepting plate, which is installed in the channel, supports the movable plate, intercepts the downward moving distance of the movable plate, ensures that the movable plate and the printing platform are always in the same horizontal plane, and improves the accuracy of the moving distance of the movable plate. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 It is a structural schematic view of the utility model;

[0024] Fig. 2 It is a printing platform main view structure schematic view of the utility model;

[0025] Fig. 3 It is an L-shaped plate main view structure schematic view of the utility model.

[0026] In the drawing: 1, printing platform; 2, support; 3, barrel; 4, support plate; 5, movable plate; 6, fixed plate; 7, rotating shaft; 8, eccentric wheel; 9, sliding rod; 10, spring; 11, bottom plate; 12, intercepting plate; 13, motor; 14, mounting plate; 15, bolt; 16, placing frame; 17, scraper; 18, cover plate; 19, positioning pin; 20, L-shaped plate; 21, wedge-shaped plate; 22, connecting rod; 23, pull plate. DETAILED DESCRIPTION

[0027] Please refer to Figs. 1-3The utility model provides a kind of nozzle stable moving mechanism for FGF molten granular material printing, including the printer main body being made of printing platform 1 and support 2, printing platform 1 is installed on support 2, material cylinder 3 is installed at the top of support 2, channel is opened in printing platform 1, movable plate 5 is arranged in channel, the lower surface of printing platform 1 is installed with U-shaped support plate 4, the upper surface of support plate 4 is installed with two fixed plates 6, rotating shaft 7 is rotatably installed between two fixed plates 6, one of fixed plates 6 is installed with motor 13, one end of rotating shaft 7 extends out from one of fixed plates 6 and is fixedly connected with the output shaft of motor 13, eccentric wheel 8 is installed on rotating shaft 7, four slide rods 9 are slidably installed on support plate 4, the top of slide rod 9 is fixedly connected with movable plate 5, the bottom of slide rod 9 is installed with bottom plate 11, spring 10, which is fixedly connected with bottom plate 11 and support plate 4 at both ends, is sleeved on slide rod 9, by setting motor 13, eccentric wheel 8, slide rod 9 and spring 10, the effect of support plate 4 is used to support fixed plate 6, motor 13 drives rotating shaft 7 to rotate, cooperates with the effect of eccentric wheel 8, movable plate 5 is lifted up by the rotation of eccentric wheel 8, the elastic effect of slide rod 9 and spring 10 makes movable plate 5 receive the reaction force of spring 10, when eccentric wheel 8 is away from movable plate 5, movable plate 5 can be reset downward by itself, and then the printing object on printing platform 1 is lifted up by the repeated up-and-down movement of movable plate 5, so that the object is separated from printing platform 1, time and labor are saved, and the stable movement of nozzle is ensured.

[0028] Intercepting plate 12 is installed on the left and right side surfaces of the inner wall of channel, the upper surface of intercepting plate 12 is attached to the lower surface of movable plate 5, by setting intercepting plate 12, the effect of intercepting plate 12 installed in channel is used, on the one hand, movable plate 5 is supported, on the other hand, the distance of movable plate 5 moving downward is intercepted, so that movable plate 5 and printing platform 1 are always in the same horizontal plane, and the accuracy of the moving distance of movable plate 5 is improved.

[0029] Two mounting plates 14 are installed on the left and right side surfaces of support 2, bolt 15 is inserted in mounting plate 14, by setting mounting plate 14, the effect of bolt 15 on mounting plate 14 is used, it is convenient to tighten bolt 15 to strengthen and fix printer main body by rotating bolt 15, the phenomenon of printer main body shaking in working process is avoided, and the stability of nozzle moving is improved, and the effect of bolt 15 thread is combined, so that bolt 15 can be loosened at any time.

[0030] The upper part of the material cylinder 3 is provided with a circular cover plate 18, the upper surface of the material cylinder 3 is provided with four positioning grooves, the positioning grooves are provided with positioning pins 19, the top end of the positioning pin 19 is fixedly connected with the cover plate 18, through the setting of the cover plate 18 and the positioning pin 19, the top end of the material cylinder 3 is timely blocked and covered by the cover plate 18, so that impurities are prevented from entering the material cylinder 3 during printing, and the cover plate 18 is fixed on the material cylinder 3 by the positioning pin 19, thereby improving the stability of the cover plate 18.

[0031] The upper surface of the support 2 is slidably provided with an L-shaped plate 20 through a sliding assembly, the transverse part of the L-shaped plate 20 is slidably provided with a connecting rod 22, the bottom end of the connecting rod 22 is fixedly connected with the cover plate 18, and the top end of the connecting rod 22 is provided with a pull plate 23, through the setting of the L-shaped plate 20 and the connecting rod 22, the connecting rod 22 is slidably supported by the L-shaped plate 20 and supported above the cover plate 18, and the connecting rod 22 is driven to move up and down by the pull plate 23, thereby facilitating the movement of the cover plate 18, which is simple in structure and convenient to operate.

[0032] The sliding assembly comprises a wedge-shaped plate 21, the upper surface of the support 2 is provided with a wedge-shaped groove, and the wedge-shaped plate 21 is slidably installed in the wedge-shaped groove, and the L-shaped plate 20 is installed on the upper surface of the wedge-shaped plate 21, through the setting of the wedge-shaped plate 21, the L-shaped plate 20 can move on the top end of the support 2 by the sliding action of the wedge-shaped plate 21 in the wedge-shaped groove, thereby facilitating the movement of the cover plate 18 to one side after being opened, and avoiding the influence of the cover plate 18 on the feeding work.

[0033] The vertical part of the support 2 is provided with an open-top placing frame 16 on the right side of the front surface, and the placing frame 16 is provided with a scraper 17, through the setting of the placing frame 16 and the scraper 17, the scraper 17 is stored and placed by the placing frame 16, and the bottom end of the nozzle after printing is cleaned of residual particles by the scraper 17, thereby avoiding the blockage of the nozzle by the residual particles, thereby improving the stability of the nozzle during movement, so that the nozzle can perform printing work for a long time.

[0034] In use, the bolt 15 is rotated to fix the support 2, the pull plate 23 is moved upward, the connecting rod 22 is driven to move upward by the pull plate 23, the cover plate 18 is driven to move upward by the connecting rod 22, the bottom end of the positioning pin 19 is gradually moved out of the positioning groove by the cover plate 18, then the L-shaped plate 20 is moved, the wedge-shaped plate 21 is driven to slide in the wedge-shaped groove when the L-shaped plate 20 is moved, then the cover plate 18 is moved to one side, the granular material is put into the barrel 3, then the printing work is carried out, after the device is finished printing, the motor 13 is started, the rotating shaft 7 is driven to rotate by the motor 13, the eccentric wheel 8 is driven to rotate by the rotating shaft 7, when the top end of the eccentric wheel 8 gradually contacts the movable plate 5, the movable plate 5 is moved upward, the slide rod 9 is driven to move upward by the movable plate 5 to extrude the spring 10, when the eccentric wheel 8 gradually moves away from the movable plate 5, the movable plate 5 is moved downward under the action of the spring 10, and then the movable plate 5 is repeatedly moved upward and downward to separate the object adhered to the printing platform 1.

Claims

1. A nozzle stable moving mechanism for FGF fused granular material printing, characterized by: The utility model provides a printer body including by printing platform (1) and support (2), printing platform (1) is installed on support (2), the top of support (2) is equipped with material cylinder (3), be equipped with the passageway on printing platform (1), be provided with movable plate (5) in the passageway, the lower surface of printing platform (1) is equipped with the support plate (4) of U type, the upper surface of support plate (4) is equipped with two fixed plate (6), rotatory mounting has the pivot (7) between two fixed plate (6), one of fixed plate (6) is equipped with motor (13), one end of pivot (7) extends out from one of fixed plate (6) and is fixedly connected with the output shaft of motor (13), pivot (7) is equipped with eccentric wheel (8), four slide bars (9) are installed on the support plate (4) and slide through, the top of slide bar (9) is fixedly connected with movable plate (5), the bottom of slide bar (9) is equipped with bottom plate (11), and the spring (10) of two ends fixedly connected with bottom plate (11) and support plate (4) is sleeved on the slide bar (9).

2. The FGF molten pellet printing nozzle stable moving mechanism according to claim 1, characterized by: The left and right sides of the inner wall of the passageway are both equipped with intercepting plates (12), and the upper surfaces of the intercepting plates (12) are in close contact with the lower surface of the movable plate (5).

3. The FGF fused granule nozzle stable moving mechanism according to claim 1, characterized in that: The left and right sides of the support (2) are both equipped with two mounting plates (14), and the mounting plates (14) are inserted with bolts (15).

4. The FGF melt granule printing nozzle stable moving mechanism according to claim 1, characterized in that: The upper surface of the material cylinder (3) is provided with a circular cover plate (18), four positioning grooves are formed in the upper surface of the material cylinder (3), and positioning pins (19) are arranged in the positioning grooves.

5. The FGF molten pellet printing nozzle stable moving mechanism according to claim 4, characterized by: The upper surface of the support (2) is slidably equipped with an L-shaped plate (20) through a sliding assembly, the lateral part of the L-shaped plate (20) is slidably penetrated and installed with a connecting rod (22), the bottom end of the connecting rod (22) is fixedly connected with the cover plate (18), and the top end of the connecting rod (22) is installed with a pull plate (23).

6. The FGF molten pellet printing nozzle stable moving mechanism according to claim 5, characterized by: The sliding assembly includes a wedge-shaped plate (21), a wedge-shaped groove is formed in the upper surface of the support (2), the wedge-shaped plate (21) is slidably installed in the wedge-shaped groove, and the L-shaped plate (20) is installed on the upper surface of the wedge-shaped plate (21).

7. The FGF molten pellet printing nozzle stable moving mechanism according to claim 5, characterized by: The right side of the front vertical part of the support (2) is equipped with an open-top placement frame (16), and a scraper (17) is arranged in the placement frame (16).

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