Novel 3D printer feeding device

Abstract

The utility model discloses a novel 3D printer feeding device which comprises a vertical frame, the side wall of the vertical frame is provided with a vertical groove, the top of the vertical frame is provided with a height adjusting assembly extending into the vertical groove, the side wall of the height adjusting assembly is fixedly connected with an insertion plate in an inserted mode, and the side wall of the insertion plate is fixedly provided with a storage barrel in an attached mode. And a barrel cover is mounted at the top of the storage barrel in an attached mode, a vacuum pump is mounted on the surface of the barrel cover in an attached mode, and a vibration bubble removing assembly extending into the storage barrel is mounted at the center of the surface of the barrel cover. Through the arranged vibration bubble removing assembly, filled raw materials can be shaken and compacted, bubbles in the raw materials can be removed, the situation that gaps exist in the raw materials, consequently, discharging is not compact, and the later printing effect is affected is avoided, the interior of the material storage barrel can be controlled to be in a vacuum state through combination of the arranged feeding assembly, a discharging pipe, a vacuum pump and a rotating piece, and the working efficiency is improved. And the problem that discharging is not solid due to air in the material storage barrel is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printer feeding devices, in particular to a novel 3D printer feeding device. Background Art

[0002] 3D printer is a kind of machine of cumulative manufacturing technology, i.e. rapid prototyping technology. It is based on a digital model file and uses special wax materials, powdered metal or plastic and other adhesive materials to print layers of adhesive materials to make three-dimensional objects. 3D printers need to be equipped with special feeding devices to ensure sufficient supply of raw materials, and pre-process the raw materials to make them ready for use.

[0003] Application No. CN202122308528.3 discloses a new type of 3D printer follow-up feeding device, including a lifting plate, one side of the lifting plate is transmission-connected with a lifting mechanism, one side of the lifting plate is installed with a storage barrel, and one side of the bottom end of the storage barrel is connected with an air blowing mechanism. The utility model can use gas to push the extrusion plate to move upward, cooperate with the support spring to assist the reset force, improve the stability of the upward movement of the extrusion plate, and the extrusion plate pushes the material upward to be evenly discharged from the discharge pipe, thereby improving the uniformity of the discharge and avoiding material breakage.

[0004] During actual use of the device, it was found that when the feed pipe was opened to add raw materials into the storage barrel through the feeding port, the raw materials piled up on each other, and bubbles may exist in them, resulting in gaps inside the added raw materials. When the raw materials were pushed upward to be squeezed, the bubbles in the raw materials would occupy the space in the discharge pipe, resulting in inaccurate discharge and affecting the subsequent 3D printing effect.

[0005] To this end, we propose a new type of 3D printer feeding device. Utility Model Content

[0006] The main purpose of the utility model is to provide a novel 3D printer feeding device, which can shake and vibrate the filled raw materials to remove bubbles inside the raw materials, avoid gaps in the raw materials that cause false discharge and affect the subsequent printing effect, and can control the storage barrel to be in a vacuum state to avoid the problem of false discharge caused by air inside the storage barrel, which can effectively solve the problems in the background technology.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A novel 3D printer feeding device comprises a vertical frame, a side wall of the vertical frame is configured with a vertical slot, a height adjustment component extending into the vertical slot is installed on the top of the vertical frame, a plug plate is plugged and fixed to the side wall of the height adjustment component, and a material storage barrel is fixed to the side wall of the plug plate;

[0009] A barrel cover is fitted on the top of the storage barrel, a vacuum pump is fitted on the surface of the barrel cover, and a vibration degassing component extending into the storage barrel is installed at the center of the barrel cover surface, and the surface of the barrel cover is structured with a filling port and a discharge port, a feeding end cap is fixed on the inner periphery of the filling port, a discharge pipe is fixed on the inner periphery of the discharge port, and a rotating piece is rotatably arranged on the inner periphery of the discharge pipe;

[0010] The outer periphery of the material storage barrel is structured with a vertical straight groove, and a sealing frame located outside the straight groove is sealedly installed on the outer periphery of the material storage barrel, and a feeding assembly is installed between the inside of the sealing frame and the inside of the material storage barrel.

[0011] Furthermore, the feeding assembly includes a second screw rotatably arranged between the inner walls of the sealing frame, the outer peripheral thread of the second screw is connected to a fitting slider that slides in sliding engagement with the inner wall of the sealing frame, the end of the fitting slider is fixed with an extrusion plate that fits in engagement with the inner periphery of the storage barrel, and a reduction motor is installed at the bottom of the storage barrel for driving the second screw to rotate.

[0012] Furthermore, the vibration debubble assembly includes a bonding sheet bonded to the surface of the cylinder cover, a vibration motor is installed on the surface of the bonding sheet, the output shaft of the vibration motor is transmission-connected to a first limit rod located below the cylinder cover, a second limit rod is slidingly arranged inside the first limit rod, a third limit rod is slidingly arranged at the bottom of the second limit rod, the bottom of the third limit rod is structured with a groove, and a swing block is rotatably installed in the groove.

[0013] Furthermore, the height adjustment assembly includes a first screw rod rotatably installed in the vertical groove, and the top of the first screw rod extends above the vertical frame, a transmission gear is fixedly mounted on the outer periphery of the top of the first screw rod, a reciprocating motor is installed on the surface of the vertical frame, and a driving gear meshingly connected to the transmission gear is fixedly mounted on the outer periphery of the end of the output shaft of the reciprocating motor, and the outer periphery of the first screw rod is threadedly connected to a sliding block slidably arranged in the sliding groove.

[0014] Furthermore, a slot is formed on the side wall of the sliding block, and a bolt is passed through the top of the sliding block.

[0015] Furthermore, a circular groove adapted to the top of the first limiting rod is configured at the bottom of the cylinder cover, and the top of the first limiting rod extends into the circular groove.

[0016] Furthermore, a protective cover is fitted on the top of the vertical frame.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. The novel 3D printer feeding device has a vibration debubble removal component, and the first limit rod, the second limit rod and the third limit rod can slide and retract. When the raw material is added, the vibration motor drives the first limit rod, the second limit rod and the third limit rod to rotate at a high speed, so that the swing block at the bottom of the third limit rod swings continuously, driving the first limit rod, the second limit rod and the third limit rod to vibrate slightly at a high speed, shaking the added raw material, which is conducive to removing the bubbles inside the raw material after vibrating it, and avoiding gaps in the raw material;

[0019] 2. The new 3D printer feeding device has a feeding assembly, a discharge pipe, a vacuum pump and a rotating plate. The vacuum pump can extract the air in the storage barrel, and the storage barrel is in a vacuum state. When the extrusion plate is controlled to push the raw material upward, the rotating plate can be pushed open only when the raw material enters the discharge pipe, and the problem of false discharge caused by the air inside the storage barrel can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a new type of 3D printer feeding device of the utility model.

[0021] Figure 2 The utility model is a schematic diagram of the structure of a vertical frame in a novel 3D printer feeding device.

[0022] Figure 3 This is a cross-sectional view of a material storage barrel in a novel 3D printer feeding device of the utility model.

[0023] Figure 4 It is a cross-sectional view of a vibrating debubble assembly in a novel 3D printer feeding device of the utility model.

[0024] In the figure: 1. vertical frame; 2. first screw; 3. transmission gear; 4. driving gear; 5. reciprocating motor; 6. protective cover; 7. sliding block; 8. plug plate; 9. storage barrel; 10. barrel cover; 11. sealing frame; 12. reduction motor; 13. second screw; 14. bonding slider; 15. extrusion plate; 16. vibration de-bubble assembly; 161. bonding sheet; 162. vibration motor; 163. first limit rod; 164. second limit rod; 165. third limit rod; 166. swing block; 17. feeding end cover; 18. vacuum pump; 19. discharge pipe; 20. rotating sheet. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1-4As shown, a novel 3D printer feeding device comprises a vertical frame 1, the side wall of the vertical frame 1 is configured with a vertical slot, a height adjustment component extending into the vertical slot is installed on the top of the vertical frame 1, a plug plate 8 is plugged and fixed to the side wall of the height adjustment component, and a material storage barrel 9 is fixed to the side wall of the plug plate 8;

[0027] The height adjustment assembly can drive the insert plate 8 to move vertically, thereby changing the height of the storage barrel 9 through the insert plate 8, so that the storage barrel 9 can adapt to the position movement of the printer nozzle;

[0028] A barrel cover 10 is fitted on the top of the storage barrel 9, a vacuum pump 18 is fitted on the surface of the barrel cover 10, and a vibration degassing component 16 extending into the storage barrel 9 is installed at the center of the surface of the barrel cover 10. The surface of the barrel cover 10 is structured with a filling port and a discharge port, a feeding end cover 17 is fixed on the inner periphery of the filling port, a discharge pipe 19 is fixed on the inner periphery of the discharge port, and a rotating piece 20 is rotatably arranged on the inner periphery of the discharge pipe 19;

[0029] The vibration degassing component 16 can vibrate the charged raw materials so that the raw materials are densely accumulated in the storage barrel 9. After the bubbles in the raw materials are squeezed out, the air in the storage barrel 9 is extracted under the action of the vacuum pump 18. The storage barrel 9 is in a vacuum state, which avoids the interference of air when squeezing the raw materials and causes the discharge to be unsolid;

[0030] The outer periphery of the material storage barrel 9 is constructed with a vertically arranged straight groove, and a sealing frame 11 located outside the straight groove is sealed on the outer periphery of the material storage barrel 9, a feeding assembly is installed between the interior of the sealing frame 11 and the interior of the material storage barrel 9, and the sealing frame 11 is connected to the interior of the material storage barrel 9 through the straight groove.

[0031] Preferably, the feeding assembly includes a second screw 13 rotatably arranged between the inner walls of the sealing frame 11, the outer peripheral thread of the second screw 13 is connected to a fitting slider 14 that slides in contact with the inner wall of the sealing frame 11, the end of the fitting slider 14 is fixed with an extrusion plate 15 that fits in contact with the inner periphery of the storage barrel 9, and the bottom of the storage barrel 9 is equipped with a reduction motor 12 for driving the second screw 13 to rotate.

[0032] The reduction motor 12 drives the second screw 13 to rotate forward and reversely, and the fitting slider 14 slides up and down along the inner wall of the sealing frame 11 under the action of the second screw 13, changing the space size of the storage barrel 9 above the extrusion plate 15 to extrude the raw materials.

[0033] Preferably, the vibrating debubble assembly 16 includes a bonding sheet 161 bonded to the surface of the barrel cover 10, a vibration motor 162 is installed on the surface of the bonding sheet 161, the output shaft of the vibration motor 162 is transmission-connected to a first limiting rod 163 located below the barrel cover 10, a second limiting rod 164 is slidingly arranged inside the first limiting rod 163, a third limiting rod 165 is slidingly arranged at the bottom of the second limiting rod 164, the bottom of the third limiting rod 165 is structured with a groove, and a swing block 166 is rotatably installed in the groove.

[0034] When the extrusion plate 15 in the feeding assembly slowly moves upward, the surface of the extrusion plate 15 first contacts with the bottom of the third limiting rod 165. As the extrusion plate 15 continues to move upward, the third limiting rod 165 slowly contracts toward the inside of the second limiting rod 164, and the second limiting rod 164 slowly contracts toward the inside of the first limiting rod 163. When the surface of the extrusion plate 15 contacts with the bottom of the first limiting rod 163, the extrusion plate 15 cannot continue to move upward, and raw materials need to be added in time.

[0035] Preferably, the height adjustment assembly includes a first screw rod 2 rotatably installed in a vertical groove, and the top of the first screw rod 2 extends to above the vertical frame 1, a transmission gear 3 is fixedly sleeved on the outer periphery of the top of the first screw rod 2, a reciprocating motor 5 is installed on the surface of the vertical frame 1, and a driving gear 4 meshing with the transmission gear 3 is fixedly sleeved on the outer periphery of the output shaft end of the reciprocating motor 5, and the transmission ratio between the transmission gear 3 and the driving gear 4 is 2, which can play a deceleration role, and the reciprocating motor 5 drives the first screw rod 2 to rotate through the transmission gear 3 and the driving gear 4. The meshing effect of the transmission gear 3 and the driving gear 4 is good and it is not easy to slip. The outer periphery of the first screw rod 2 is threadedly connected with a sliding block 7 slidably set in the sliding groove. Since the reciprocating motor 5 has a high rotation speed, the rotation speed of the first screw rod 2 can be reduced through the transmission of the transmission gear 3 and the driving gear 4, so as to avoid the first screw 2 rotating too fast and making it inconvenient to control the moving distance of the sliding block 7.

[0036] The output shaft of the reciprocating motor 5 drives the first screw rod 2 to rotate through the driving gear 4 and the transmission gear 3, so that the sliding block 7 moves up and down in contact with the vertical groove under the action of the first screw rod 2.

[0037] Preferably, a slot is formed on the side wall of the sliding block 7, and a bolt is passed through the top of the sliding block 7.

[0038] The plug-in plate 8 and the sliding block 7 are conveniently plugged and fixed through the slot, and the side wall of the plug-in plate 8 is provided with a plug-in block adapted to the slot. The plug-in block is tightened with bolts, so that the plug-in plate 8 and the sliding block 7 can be quickly installed and fixed.

[0039] Preferably, the bottom of the barrel cover 10 is configured with a circular groove adapted to the top of the first limiting rod 163 , and the top of the first limiting rod 163 extends into the circular groove.

[0040] Under the effect of the circular groove, the stability of the top of the first limiting rod 163 can be maintained when it rotates, and the first limiting rod 163, the second limiting rod 164 and the third limiting rod 165 can be prevented from swinging significantly.

[0041] Preferably, a protective cover 6 is fitted on the top of the vertical frame 1 .

[0042] The protective cover 6 is used to seal the driving gear 4 and the transmission gear 3 to prevent foreign matter from being caught between the transmission gear 3 and the driving gear 4 .

[0043] It should be noted that the utility model is a novel 3D printer feeding device, which pre-controls the feeding assembly to move the extrusion plate 15 to the lowest position. When filling the raw material, the filling end cover is opened to inject the raw material, and at the same time, the vibration bubble removal assembly 16 is started, and the output shaft of the vibration motor 162 drives the first limit rod 163, the second limit rod 164 and the third limit rod 165 to rotate at a high speed. Under the action of the swing block 166 at the bottom of the third limit rod 165, the first limit rod 163, the second limit rod 164 and the third limit rod 165 are slightly moved. The raw material is vibrated and compacted by high-speed swinging. The bubbles in the raw material are discharged and located above the raw material. The air in the storage barrel 9 is sucked out by the vacuum pump 18 and discharged to the outside of the storage barrel 9. The storage barrel 9 is in a vacuum state. The feeding component squeezes the raw material into the discharge pipe 19 by slowly moving the extrusion plate 15 upward to supply the 3D printer's nozzle. When the nozzle moves, the reciprocating motor 5 can drive the first screw 2 to rotate through the meshing transmission of the driving gear 4 and the transmission gear 3, so that the sliding block 7 moves up and down along the vertical groove, thereby changing the height of the storage barrel 9 to adapt to the change of the nozzle position.

[0044] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A new type of 3D printer feeding device, characterized in that: It comprises a vertical frame (1), the side wall of the vertical frame (1) is configured with a vertical groove, a height adjustment component extending into the vertical groove is installed on the top of the vertical frame (1), a plug plate (8) is inserted and fixed to the side wall of the height adjustment component, and a storage barrel (9) is fixedly attached to the side wall of the plug plate (8); A barrel cover (10) is fitted on the top of the storage barrel (9), a vacuum pump (18) is fitted on the surface of the barrel cover (10), and a vibration degassing component (16) extending into the storage barrel (9) is installed at the center of the surface of the barrel cover (10), and the surface of the barrel cover (10) is structured with a filling port and a discharge port, a feeding end cover (17) is fixed on the inner periphery of the filling port, a discharge pipe (19) is fixed on the inner periphery of the discharge port, and a rotating piece (20) is rotatably arranged on the inner periphery of the discharge pipe (19); The outer periphery of the material storage barrel (9) is structured with a vertically arranged straight groove, and a sealing frame (11) located outside the straight groove is sealedly installed on the outer periphery of the material storage barrel (9), and a feeding assembly is installed between the interior of the sealing frame (11) and the interior of the material storage barrel (9).

2. A novel 3D printer feeding device according to claim 1, characterized in that: The feeding assembly comprises a second screw (13) rotatably arranged between the inner walls of the sealing frame (11); the outer circumference of the second screw (13) is threadedly connected to a fitting slider (14) that is slidably fitted with the inner wall of the sealing frame (11); an extrusion plate (15) that is fitted with the inner circumference of a storage barrel (9) is fixed to the end of the fitting slider (14); and a reduction motor (12) for driving the second screw (13) to rotate is installed at the bottom of the storage barrel (9).

3. A novel 3D printer feeding device according to claim 1, characterized in that: The vibrating debubble assembly (16) comprises a bonding sheet (161) bonded to the surface of the barrel cover (10), a vibration motor (162) being mounted on the surface of the bonding sheet (161), an output shaft of the vibration motor (162) being drivingly connected to a first limiting rod (163) located below the barrel cover (10), a second limiting rod (164) being slidably disposed inside the first limiting rod (163), a third limiting rod (165) being slidably disposed at the bottom of the second limiting rod (164), a groove being structured at the bottom of the third limiting rod (165), and a swing block (166) being rotatably mounted in the groove.

4. A novel 3D printer feeding device according to claim 1, characterized in that: The height adjustment assembly comprises a first screw rod (2) rotatably mounted in a vertical groove, and the top of the first screw rod (2) extends above the vertical frame (1), a transmission gear (3) is sleeved and fixed on the outer periphery of the top of the first screw rod (2), a reciprocating motor (5) is mounted on the surface of the vertical frame (1), and a driving gear (4) meshingly connected to the transmission gear (3) is sleeved and fixed on the outer periphery of the output shaft end of the reciprocating motor (5), and a sliding block (7) slidably arranged in the sliding groove is threadedly connected to the outer periphery of the first screw rod (2).

5. A novel 3D printer feeding device according to claim 4, characterized in that: The side wall of the sliding block (7) is configured with a slot, and the top of the sliding block (7) is penetrated by a bolt.

6. A novel 3D printer feeding device according to claim 3, characterized in that: The bottom of the cylinder cover (10) is configured with a circular groove adapted to the top of the first limiting rod (163), and the top of the first limiting rod (163) extends into the circular groove.

7. A novel 3D printer feeding device according to claim 1, characterized in that: A protective cover (6) is fitted on the top of the vertical frame (1).

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