CN216466232U - Feeding mechanism of 3D printing vertical extruder - Google Patents
Feeding mechanism of 3D printing vertical extruder Download PDFInfo
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- CN216466232U CN216466232U CN202122177665.8U CN202122177665U CN216466232U CN 216466232 U CN216466232 U CN 216466232U CN 202122177665 U CN202122177665 U CN 202122177665U CN 216466232 U CN216466232 U CN 216466232U
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- feeding
- extruder
- screw
- screw rod
- extruder barrel
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Abstract
The utility model discloses a feeding mechanism of a 3D printing vertical extruder, which comprises a feeding hopper, wherein a conical feeding cavity is formed in the feeding hopper, the inner diameter of the conical feeding cavity is gradually reduced from top to bottom, the bottom of the feeding hopper is arranged at the feeding end of the top of an extruder barrel, the conical feeding cavity is communicated with the inside of the extruder barrel, a screw rod is arranged in the extruder barrel, the top end of the screw rod extends upwards to penetrate through the conical feeding cavity, a feeding screw rib is arranged on the outer side of the part, located in the conical feeding cavity, of the screw rod, and the diameter of the feeding screw rib is gradually reduced from top to bottom. The feeding device realizes downward pressing feeding, accelerates the feeding speed, avoids the phenomena of bridging, blocking and the like at the feeding end of the top of the barrel body of the extruder, and ensures the stable conveying capacity and the stable flow of the extruder.
Description
Technical Field
The utility model relates to the technical field of extruder equipment, in particular to a feeding mechanism of a 3D printing vertical extruder.
Background
In the field of extruder plants, if the "plasticizing" capacity of an extruder is not considered but is aimed at pursuing the output of the extruder, it is necessary to increase the "swallowing" capacity of the extruder for the material, i.e. the greater the capacity of the extruder to feed the material to the extruder the greater the output of the extruder.
For a vertical single-screw extruder for micro 3D printing, material gravity is utilized during feeding, namely, materials are added into a machine barrel through a feed inlet at the top end of the extruder, feeding is realized under the action of the gravity of the materials and the rotary conveying action of a screw, but the gravity of the tiny particles is limited due to the fact that the particle size of the added materials is small (generally below 1.3 mm), and the extruder has a head back pressure acting force, so that the materials are subjected to the reaction force of a material positive thrust force in front of a spiral groove of a feed section of the fed screw, the feeding of the materials is hindered, and the phenomena of bridging, blocking and the like easily occur to the materials.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems in the prior art, the utility model provides a feeding mechanism of a 3D printing vertical extruder, which realizes downward forced feeding, accelerates the feeding speed, avoids the phenomena of bridging, blocking and the like of materials at the feeding end of the top of an extruder barrel, and ensures the stable conveying capacity and the stable flow of the extruder.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a feeding mechanism of a 3D printing vertical extruder, which comprises a feeding hopper, wherein a conical feeding cavity is formed in the feeding hopper, the inner diameter of the conical feeding cavity is gradually reduced from top to bottom, the bottom of the feeding hopper is arranged at the feeding end of the top of an extruder barrel, the conical feeding cavity is communicated with the interior of the extruder barrel, a screw is arranged in the extruder barrel, the top end of the screw extends upwards to penetrate through the conical feeding cavity, a feeding screw ridge is arranged on the outer side of the inner part of the conical feeding cavity of the screw, and the outer diameter of the feeding screw ridge is gradually reduced from top to bottom.
The improved structure is characterized in that a feed inlet is formed in the top end of the feeding hopper, and a feed pipe is communicated with the feed inlet.
Through setting up, the material is carried to feeding hopper inside by the inlet pipe is automatic, has realized automatic feed.
The improved structure is characterized in that the screw is of a conical structure, the diameter of the screw is gradually reduced from the feeding end at the top of the extruder barrel to the discharging end at the bottom of the extruder barrel, a conveying screw ridge is arranged on the outer side of the screw and located inside the extruder barrel, and the outer diameter of the conveying screw ridge is gradually reduced from top to bottom.
Through setting up the transport screw arris to screw rod and outside, can be more smooth and easy stable continuously the downwardlyconveying with the material under the rotation of screw rod.
The improvement is that a material level sensor is arranged on the side wall of the feeding hopper.
Through installation material level sensor, can real time monitoring feed hopper interior material's height to the unloading speed of material can real time monitoring and regulation and control.
The improved structure is characterized in that a mandrel is detachably connected inside the screw rod, the end part of the mandrel is connected with a driving device, and the mandrel and the screw rod are coaxially arranged.
Because the screw rod contacts with the material for a long time, takes place wearing and tearing easily, establish the screw rod cover and install in the dabber outside, can conveniently dismantle maintenance or change the serious screw rod of wearing and tearing, reduce the use cost of equipment.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, the feeding hopper with the conical feeding cavity inside is arranged, materials entering the feeding hopper are automatically gathered to the bottom of the feeding hopper downwards along the inner side wall of the feeding hopper, the screw rod penetrates through the conical feeding cavity, the feeding screw rib with the diameter gradually reduced from top to bottom is arranged on the outer side of the screw rod, and the rotation of the feeding screw rib is driven while the screw rod rotates to convey the materials downwards, so that the materials in the feeding hopper are fed downwards in a pressing mode, the feeding speed is increased, the phenomena of bridging, blocking and the like of the materials at the feeding end of the top of the barrel of the extruder are avoided, and the stable conveying capacity and the stable flow of the extruder are ensured; through the structural improvement, the yield of the 3D printing vertical extruder can be increased by about 5%, and the flow rate is quite stable.
Drawings
The utility model is described in further detail below with reference to specific embodiments and with reference to the following drawings.
FIG. 1 is a schematic structural diagram of a feeding mechanism of a 3D printing vertical extruder in the utility model;
wherein, the specific reference numbers are: the feeding device comprises a feeding hopper 1, a conical feeding cavity 2, a feeding port 3, a feeding pipe 4, a material level sensor 5, a screw 6, a feeding screw ridge 7, a conveying screw ridge 8, a mandrel 9 and an extruder barrel 10.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
The embodiment of the utility model discloses a feeding mechanism of a 3D printing vertical extruder, which comprises a feeding hopper 1, wherein a conical feeding cavity 2 is formed inside the feeding hopper 1, the inner diameter of the conical feeding cavity 2 is gradually reduced from top to bottom, the bottom of the feeding hopper 1 is arranged at the feeding end of the top of an extruder barrel 10, the conical feeding cavity 2 is communicated with the inside of the extruder barrel 10, a screw rod 6 is arranged inside the extruder barrel 10, the top end of the screw rod 6 extends upwards to penetrate through the conical feeding cavity 2, a feeding screw rib 7 is arranged on the outer side of the part, located inside the conical feeding cavity 2, of the screw rod 6, and the outer diameter of the feeding screw rib 7 is gradually reduced from top to bottom.
Wherein, a feed inlet 3 is arranged at the top end of the feeding hopper 1, and a feed pipe 4 is communicated with the feed inlet 3. Through setting up, the material is carried to feeding hopper 1 inside by inlet pipe 4 is automatic, has realized automatic feed.
Wherein, screw rod 6 is the toper structure, and the diameter of screw rod 6 is reduced gradually by the feed end at extruder barrel 10 top to the discharge end direction of extruder barrel 10 bottom, and the screw rod 6 outside is equipped with carries spiral shell arris 8, carries spiral shell arris 8 to be located extruder barrel 10 inside, and carries the external diameter of spiral shell arris 8 from last to reducing gradually down. Through setting up screw rod 6 and the transport screw arris 8 in the outside, can be more smooth and easy stable under the rotation of screw rod 6 and continue the downdraft with the material.
Wherein, a material level sensor 5 is arranged on the side wall of the feeding hopper 1. Through installation material level sensor 5, can real time monitoring feeding hopper 1 in the height of material to the unloading speed of material can real time monitoring and regulation and control.
Wherein, the inside dabber 9 that is connected with of screw rod 6 can be dismantled, and dabber 9 tip is connected with drive arrangement, and dabber 9 sets up with the axle center with screw rod 6. Because the screw rod 6 contacts with the material for a long time, takes place wearing and tearing easily, establish the screw rod 6 cover and install in the dabber 9 outside, can conveniently dismantle maintenance or change the serious screw rod 6 that wears out, reduce the use cost of equipment.
According to the utility model, the feeding hopper 1 with the conical feeding cavity 2 inside is arranged, materials entering the feeding hopper 1 automatically gather to the bottom of the feeding hopper 1 downwards along the inner side wall of the feeding hopper, the screw rod 6 penetrates through the conical feeding cavity 2, the feeding screw rib 7 with the diameter gradually reduced from top to bottom is arranged on the outer side of the screw rod 6, and the screw rod 6 drives the feeding screw rib 7 to rotate when conveying the materials downwards, so that the materials in the feeding hopper 1 are pressed downwards for feeding, the feeding speed is accelerated, the phenomena of bridging, blocking and the like at the feeding end of the top of the extruder barrel 10 are avoided, and the stable conveying capacity and the stable flow of the extruder are ensured; through the structural improvement, the yield of the 3D printing vertical extruder can be increased by about 5%, and the flow rate is quite stable.
The present invention has been described in terms of specific examples, which are provided to aid understanding of the utility model and are not intended to be limiting. For a person skilled in the art to which the utility model pertains, several simple deductions, modifications or substitutions may be made according to the idea of the utility model.
Claims (5)
1. The utility model provides a feed mechanism of vertical extruder is printed to 3D, its characterized in that, includes the feeding hopper, the inside toper feeding chamber that forms of feeding hopper, the internal diameter in toper feeding chamber reduces from last to down gradually, the feeding end department at extruder barrel top is installed to the feeding hopper bottom, just toper feeding chamber with the extruder barrel is inside to be linked together, extruder barrel internally mounted has the screw rod, the screw rod top upwards extends to run through toper feeding chamber, the screw rod is located toper feeding intracavity portion outside is equipped with the feed screw arris, the external diameter of feed screw arris reduces from last to down gradually.
2. The feeding mechanism of the 3D printing vertical extruder as claimed in claim 1, wherein a feeding port is formed at the top end of the feeding hopper, and a feeding pipe is communicated with the feeding port.
3. The feeding mechanism of a vertical 3D printing extruder as claimed in claim 1, wherein the screw is of a conical structure, the diameter of the screw is gradually reduced from the feeding end at the top of the extruder barrel to the discharging end at the bottom of the extruder barrel, a conveying screw rib is arranged on the outer side of the screw, the conveying screw rib is positioned in the extruder barrel, and the outer diameter of the conveying screw rib is gradually reduced from top to bottom.
4. The feeding mechanism of a 3D printing vertical extruder as claimed in claim 1, wherein a material level sensor is mounted on the side wall of the feeding hopper.
5. The feeding mechanism of a 3D printing vertical extruder as claimed in claim 1, wherein a mandrel is detachably connected inside the screw, the end of the mandrel is connected with a driving device, and the mandrel and the screw are coaxially arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122177665.8U CN216466232U (en) | 2021-09-09 | 2021-09-09 | Feeding mechanism of 3D printing vertical extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122177665.8U CN216466232U (en) | 2021-09-09 | 2021-09-09 | Feeding mechanism of 3D printing vertical extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216466232U true CN216466232U (en) | 2022-05-10 |
Family
ID=81436702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122177665.8U Active CN216466232U (en) | 2021-09-09 | 2021-09-09 | Feeding mechanism of 3D printing vertical extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216466232U (en) |
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2021
- 2021-09-09 CN CN202122177665.8U patent/CN216466232U/en active Active
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