Feeding device for 3D printing equipment

Abstract

The utility model discloses a feeding device for 3D printing equipment. The feeding device comprises a material frame, a material barrel and a piston pushing device. The charging barrel is detachably fixed on the material frame; a discharging pipe is arranged on the charging barrel; the charging barrel is provided with a piston; the piston pushing device is used for pushing the piston so that the piston can move along the interior of the charging barrel. The piston pushing device comprises a lead screw, a power part, a lead screw nut and a transmission part. The power part is used for driving the screw rod to rotate; the lead screw nut is sleeved on the lead screw in a matching manner; the transmission part is used for pushing the piston and connected with the lead screw nut. According to the feeding device, feeding can be achieved, meanwhile, cost can be reduced, and the charging barrel can be replaced conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of feeding device for 3D printing equipment. BACKGROUND

[0002] In the 3D printing process, generally need to feed printing material on coating film first, then printing material is coated on printing platform by coating film. Currently, printing material is fed on coating film by feeding device. In the feeding process of existing feeding device, printing material in cartridge is sprayed on coating film by spraying mechanism to complete feeding. But the existing feeding device can realize feeding, but the structure is more complex, the cost is higher, and the cartridge is not convenient to replace, so it cannot meet the requirements of industry. SUMMARY

[0003] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a kind of feeding device for 3D printing equipment, which can realize feeding while reducing cost and facilitating the replacement of cartridge.

[0004] The purpose of the utility model is realized by the following technical solutions:

[0005] A kind of feeding device for 3D printing equipment, including rack, cartridge and piston push device;The cartridge is fixed on rack in a detachable manner;Discharge pipe is provided on the cartridge;The cartridge is installed with piston;The piston push device is used to push piston to make piston move along the inside of cartridge.

[0006] The piston push device includes lead screw, power component, lead screw nut and transmission part;The power component is used to drive lead screw to rotate;The lead screw nut is matchedly sleeved on the lead screw;The transmission part is used to push piston, and the transmission part is connected with lead screw nut.

[0007] The power component includes motor.

[0008] The output shaft of the motor is connected with the lead screw.

[0009] First bearing seat and second bearing seat are provided on the rack;The lead screw is rotatably installed on first bearing seat and second bearing seat.

[0010] The piston is provided with protruding part, the protruding part is provided with embedding slot, and the embedding slot is used for embedding the end of transmission part away from lead screw nut.

[0011] The end of transmission part away from lead screw nut is connected with protruding part in a detachable manner.

[0012] Guide slot is provided on the rack, and the transmission part includes anti-bending chain;The anti-bending chain is located in guide slot.

[0013] The guide groove comprises a first linear groove section, a circular-arc groove section and a second linear groove section; the first linear groove section is opposite to the second linear groove section, and the first linear groove section is communicated with the second linear groove section through the circular-arc groove section.

[0014] The rack is provided with a mounting groove for accommodating the material cylinder, and the rack is detachably connected with a resisting piece for resisting the material cylinder.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The feeding device for the 3D printing equipment provided by the utility model can push the piston by the piston pushing device to make the printing material in the material cylinder be discharged through the discharge pipe under the pushing action of the piston, so that the discharge can be realized at the same time, the structure can be simplified, and the cost can be reduced; and on the basis of the combination of the rack, the material cylinder and the piston pushing device, the material cylinder is detachably fixed on the rack, so that the material cylinder can be conveniently disassembled and replaced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a structural schematic view of the utility model;

[0018] Fig. 2 It is an explosion view of the utility model;

[0019] Fig. 3 It is an exploded schematic view of the piston pushing device;

[0020] In the drawings: 310, rack; 311, first bearing seat; 312, second bearing seat; 313, guide groove; 314, first linear groove section; 315, circular-arc groove section; 316, second linear groove section; 317, mounting groove; 318, resisting piece; 320, material cylinder; 321, discharge pipe; 322, piston; 323, convex part; 324, embedded groove; 330, piston pushing device; 331, screw rod; 332, power component; 333, screw rod nut; 334, transmission part; 335, connecting part. DETAILED DESCRIPTION

[0021] The utility model will be further described in combination with the drawings and the specific implementation, and it should be noted that the following described embodiments or technical features can be combined to form new embodiments without conflict.

[0022] For example, Figs. 1-3As shown, a feeding device for 3D printing equipment, including rack 310, barrel 320 and piston pushing device 330; the barrel 320 is detachably fixed on the rack 310; the barrel 320 is provided with a discharge pipe 321; the barrel 320 is installed with a piston 322; the piston pushing device 330 is used to push the piston 322 to move along the inside of the barrel 320.

[0023] In use, the piston pushing device 330 works, and the piston 322 is pushed by the piston pushing device 330 to move along the inside of the barrel 320, and the printing material in the barrel 320 is discharged along the discharge pipe 321 under the pushing action of the piston 322, so as to realize the discharge. Thus, the feeding device for 3D printing equipment provided by the utility model can realize the discharge by pushing the piston 322 by the piston pushing device 330, can simplify the structure, reduce the cost, and after the printing material in the barrel 320 is used up, the barrel 320 can be detached from the rack 310, the piston 322 is separated from the piston pushing device 330, and then a new barrel 320 is connected to the rack 310, so as to facilitate the disassembly of the barrel 320 and facilitate the replacement of the barrel 320.

[0024] The piston pushing device 330 includes a lead screw 331, a power component 332, a lead screw nut 333 and a transmission member 334; the power component 332 is used to drive the lead screw 331 to rotate; the lead screw nut 333 is matchedly sleeved on the lead screw 331; the transmission member 334 is used to push the piston 322, and the transmission member 334 is connected with the lead screw nut 333. In use, the power component 332 works, drives the lead screw 331 to rotate forward, so as to move the lead screw nut 333, and drives the piston 322 to move through the transmission member 334, so as to push the printing material in the barrel 320 towards the discharge pipe 321 through the piston 322, so that the printing material can be discharged from the discharge pipe 321, thereby realizing the discharge.

[0025] Preferably, the power component 332 includes a motor. Specifically, the output shaft of the motor is connected with the lead screw 331. By using the motor as the power component 332, the connection can be facilitated.

[0026] The rack 310 is provided with a first bearing seat 311 and a second bearing seat 312; the lead screw 331 is rotatably installed on the first bearing seat 311 and the second bearing seat 312, so that the support of the lead screw 331 can be improved through the first bearing seat 311 and the second bearing seat 312.

[0027] Preferably, the transmission member 334 is connected with the screw nut 333 through the connecting member 335, so as to facilitate the connection between the transmission member 334 and the screw nut 333.

[0028] The protruding part 323 is arranged on the piston 322, and the embedding groove 324 is arranged on the protruding part 323, and the end of the transmission member 334 away from the screw nut 333 is embedded in the embedding groove 324. By arranging the embedding groove 324 on the protruding part 323 and embedding the end of the transmission member 334 away from the screw nut 333 in the embedding groove 324, the stability of the piston 322 can be improved.

[0029] Preferably, the end of the transmission member 334 away from the screw nut 333 is detachably connected with the protruding part 323. By embedding the end of the transmission member 334 away from the screw nut 333 in the embedding groove 324 and detachably connecting the end of the transmission member 334 away from the screw nut 333 with the protruding part 323, the piston 322 and the piston moving device 330 can be separated, and the stability of the piston 322 can be further improved.

[0030] In the embodiment, the end of the transmission member 334 away from the screw nut 333 is connected with the protruding part 323 through a screw, and of course, the end of the transmission member 334 away from the screw nut 333 can also be connected with the protruding part 323 through a bolt or the like, as long as the end of the transmission member 334 away from the screw nut 333 can be detachably connected with the protruding part 323.

[0031] The guide groove 313 is arranged on the rack 310, and the transmission member 334 comprises an anti-bending chain, and the anti-bending chain is located in the guide groove 313. Specifically, the guide groove 313 comprises a first straight groove section 314, a circular-arc groove section 315 and a second straight groove section 316, the first straight groove section 314 is opposite to the second straight groove section 316, and the first straight groove section 314 is communicated with the second straight groove section 316 through the circular-arc groove section 315. In the process that the power component 332 drives the screw nut 333 to move along the axial direction of the screw rod 331, the anti-bending chain is driven by the screw nut 333 to move along the guide groove 313, and the anti-bending chain plays a pushing role on the piston 322, so that the guide groove 313 can guide the anti-bending chain. By arranging the guide groove 313 on the rack 310 and adopting the anti-bending chain as the transmission member 334, the piston 322 can be pushed to move, and the volume of the feeding device can be reduced, and the space can be saved.

[0032] Of course, in addition to this, the transmission member 334 can also adopt a transmission rod, or a push rack, etc., as long as the pushable piston 322 can be pushed. But the transmission member 334 adopts a bending-resistant chain, which is the most preferred embodiment of the utility model, and can push the piston 322 while reducing the volume of the feeding device and the space.

[0033] The rack 310 is provided with a mounting groove 317 for accommodating the feeding cylinder 320, and the rack 310 is detachably connected with a resisting member 318 for resisting the feeding cylinder 320. In this embodiment, the resisting member 318 is fixed on the rack 310 by screws. During the disassembly of the feeding cylinder 320 and the rack 310, only the resisting member 318 needs to be detached from the rack 310, and then the feeding cylinder 320 can be removed from the mounting groove 317 of the rack 310, so as to complete the disassembly of the feeding cylinder 320 and the rack 310.

[0034] Of course, in addition to this, other structures can also be adopted, as long as the feeding cylinder 320 can be detachably connected to the rack 310, for example, a pull-out box can be pullably mounted on the rack 310, and the pull-out box is provided with an accommodation cavity for accommodating the feeding cylinder 320, or a built-in cavity for accommodating the feeding cylinder 320 can be provided on the rack 310, and a buckle is provided at the opening of the built-in cavity (so that the feeding cylinder 320 can be conveniently put in and taken out by opening the buckle, and the feeding cylinder 320 can be locked in the accommodation cavity by buckling the buckle), etc. But by providing the mounting groove 317 for accommodating the feeding cylinder 320 on the rack 310, and detachably connecting the resisting member 318 on the rack 310, it is the preferred embodiment of the utility model that the feeding cylinder 320 can be detachably connected to the rack 310, and the disassembly of the feeding cylinder 320 and the rack 310 is facilitated.

[0035] The above-mentioned embodiments are only preferred embodiments of the utility model, and cannot be used to limit the scope of protection of the utility model. Any non-substantial changes and replacements made by those skilled in the art on the basis of the utility model all belong to the scope of protection claimed by the utility model.

Claims

1. A feeding device for 3D printing equipment, characterized in that: The device includes a material rack, a material cylinder, and a piston pushing device. The material cylinder is detachably fixed to the material rack. A discharge pipe is provided on the material cylinder. A piston is installed on the material cylinder. The piston pushing device is used to push the piston so that the piston moves along the inside of the material cylinder. The piston pushing device includes a lead screw, a power component, a lead screw nut, and a transmission component. The power component is used to drive the lead screw to rotate. The lead screw nut is fitted onto the lead screw. The transmission component is used to push the piston and is connected to the lead screw nut.

2. The feeding device for 3D printing equipment as described in claim 1, characterized in that: The power component includes an electric motor.

3. The feeding device for 3D printing equipment as described in claim 2, characterized in that: The output shaft of the motor is connected to the lead screw.

4. The feeding device for 3D printing equipment as described in claim 1, characterized in that: The material rack is provided with a first bearing seat and a second bearing seat; the lead screw is rotatably mounted on the first bearing seat and the second bearing seat.

5. The feeding device for 3D printing equipment as described in claim 1, characterized in that: The piston is provided with a protrusion, and the protrusion is provided with an embedding groove, which is used for embedding the end of the transmission component away from the lead screw nut.

6. The feeding device for 3D printing equipment as described in claim 5, characterized in that: The end of the transmission component away from the lead screw nut is detachably connected to the protrusion.

7. The feeding device for 3D printing equipment as described in claim 1, characterized in that: The material rack is provided with a guide groove, and the transmission component includes an anti-bending chain; the anti-bending chain is located in the guide groove.

8. The feeding device for 3D printing equipment as described in claim 7, characterized in that: The guide groove includes a first straight groove segment, an arc groove segment, and a second straight groove segment; the first straight groove segment is opposite to the second straight groove segment, and the first straight groove segment is connected to the second straight groove segment through the arc groove segment.

9. The feeding device for 3D printing equipment as described in claim 1, characterized in that: The material rack is provided with an installation groove for accommodating the material cylinder, and a stopper for blocking the material cylinder is detachably connected to the material rack.

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