CN218906334U

CN218906334U - Screw conveyer quick detach location structure and binder sprays 3D printer

Info

Publication number: CN218906334U
Application number: CN202222460318.0U
Authority: CN
Inventors: 琚程林
Original assignee: Zhejiang Flashforge 3d Technology Co ltd
Current assignee: Zhejiang Flashforge 3d Technology Co ltd
Priority date: 2022-09-14
Filing date: 2022-09-14
Publication date: 2023-04-25
Anticipated expiration: 2032-09-14

Abstract

The utility model discloses a quick-dismantling positioning structure of a screw conveyer and a binder spraying 3D printer, wherein two ends of the screw conveyer are respectively communicated with a feeding bin and a storage bin, the screw conveyer is connected with a rotating shaft, the rotating shaft is in transmission connection with a driving mechanism, one end of the screw conveyer is provided with a conical connecting part, the rotating shaft is provided with a conical opening part, the conical connecting part is matched with the conical opening part, and the screw conveyer and the rotating shaft are detachably spliced and matched with the conical opening part through the conical connecting part. The conical connecting part and the conical opening form conical surface guide, so that the insertion and the pulling are labor-saving, and the screw conveyor and the rotating shaft are convenient to install.

Description

Screw conveyer quick detach location structure and binder sprays 3D printer

Technical Field

The utility model belongs to the field of 3D printing, and particularly relates to a quick-dismantling positioning structure of a screw conveyor.

Background

And spraying the adhesive on a layer of nylon, metal or ceramic powder by using an adhesive spraying 3D printer according to a two-dimensional slice pattern of the three-dimensional model, and adhering the additive manufacturing technology of powder forming, thereby obtaining the 3D model. The 3D printing mode has the characteristics of high efficiency, low cost and suitability for mass production.

Screw conveyer carries the printing platform with powder from the powder case, and in the 3D printing process, screw conveyer needs to dismantle the clearance often and remain powder. In order to keep the axle center, the existing screw conveyor can be fixed at two ends of the rotary conveyor by key grooves, cannot be quickly disassembled, and is inconvenient to clean and maintain.

Disclosure of Invention

The utility model aims to provide a quick-dismantling and positioning structure of a screw conveyor, which can realize quick dismantling and assembling and is convenient to clean and maintain while realizing a force transmission function.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a quick-dismantling positioning structure of a screw conveyer is characterized in that two ends of the screw conveyer are respectively communicated with a feeding bin and a storage bin, the screw conveyer is connected with a rotating shaft, the rotating shaft is in transmission connection with a driving mechanism, one end of the screw conveyer is provided with a conical connecting portion, the rotating shaft is provided with a conical surface opening portion, the conical connecting portion is matched with the conical surface opening portion, and the screw conveyer is detachably spliced and matched with the rotating shaft through the conical connecting portion and the conical surface opening portion. The conical connecting part and the conical opening form conical surface guide, so that the insertion and the pulling are labor-saving, and the screw conveyor and the rotating shaft are convenient to install.

Further, the screw conveyor is provided with a positioning pin, the rotating shaft is provided with a positioning hole, and when the conical connecting part is placed in the conical surface opening part, the positioning pin is installed in the positioning hole. The screw conveyer and the rotating shaft transmit torque through the locating pin and the locating hole, the motor drives the rotating shaft to rotate, and the rotating shaft drives the screw conveyer to rotate, so that powder in the feeding bin is conveyed to the storage bin through the screw conveyer. When in installation, the positioning pin of the screw conveyor is aligned with the positioning hole of the rotating shaft, so that one end of the screw conveyor is installed in the rotating shaft; during cleaning and maintenance, the spiral conveyor and the rotating shaft can be separated only by pulling the spiral conveyor upwards, so that residual powder of the spiral conveyor can be cleaned conveniently.

Further, the locating pin symmetry sets up in the toper connecting portion, and the locating pin link up along the radial of toper connecting portion, and the both ends of locating pin are located toper connecting portion outward, locating pin and toper connecting portion fixed connection or integrated into one piece, locating pin and location trompil phase-match. Symmetrically arranged locating pins are convenient for transmitting torque to the screw conveyor.

Further, the locating pin is in clearance fit with the locating hole.

Further, the screw conveyer is vertically arranged, and the rotating shaft is positioned at the end, close to the feeding bin, of the screw conveyer.

Further, be equipped with the discharge gate in the storage silo, the discharge gate is equipped with the fixed plate, and screw conveyer's the other end is installed in the fixed plate. Powder enters the storage bin from the discharge hole, and the fixed plate is used for limiting the position of the screw conveyor and preventing the screw conveyor from shaking when rotating.

Further, a first bearing is arranged between the fixed plate and the screw conveyor. The upper end of the screw conveyor provides a rotation fulcrum through a first bearing.

Further, screw conveyer and rotation axis are installed in the feeding seat, and one side of feeding seat is equipped with the feeding storehouse, and the opposite side of feeding seat is equipped with the clearance mouth, and the clearance mouth is fixed with detachable clearance board. After the material cleaning plate is disassembled, the residual powder on the spiral conveyor and the rotating shaft can be directly cleaned through the material cleaning opening.

Further, a second bearing and a framework oil seal are arranged on the periphery of the rotating shaft, the framework oil seal is positioned at the installation position of the rotating shaft and the screw conveyor, and the second bearing is positioned at the lower end of the framework oil seal. The second bearing facilitates rotation of the rotating shaft, and the first bearing and the second bearing cooperate to keep the rotating shaft from moving in series. The skeleton oil blanket realizes moving seal to the rotation axis, prevents that powder from dropping to the rotation axis bottom and influencing the motor.

A3D printer is sprayed to binder includes screw conveyer quick detach location structure.

By adopting the technical scheme, the utility model has the following beneficial effects:

the conical connecting part of the screw conveyer and the rotating shaft forms conical surface guide with the conical surface opening, so that the insertion and the extraction are labor-saving, and the screw conveyer and the rotating shaft are convenient to install. The motor drives the rotating shaft to rotate through the locating pin and the locating hole, and the rotating shaft drives the screw conveyor to rotate, so that powder in the feeding bin is conveyed to the storage bin through the screw conveyor. When in installation, the positioning pin of the screw conveyor is aligned with the positioning hole of the rotating shaft, so that one end of the screw conveyor is installed in the rotating shaft; during cleaning and maintenance, the spiral conveyor and the rotating shaft can be separated only by pulling the spiral conveyor upwards, so that residual powder of the spiral conveyor can be cleaned conveniently. The locating pin may be an interference fit with the locating aperture. The conical connecting part and the conical opening form conical surface guide, so that the screw conveyor and the rotating shaft are convenient to install.

Powder enters the storage bin from the discharge hole, and the fixed plate is used for limiting the position of the screw conveyor and preventing the screw conveyor from shaking when rotating. The upper end of the screw conveyor provides a rotation fulcrum through a first bearing. The second bearing arranged on the rotating shaft is convenient for the rotation of the rotating shaft, and meanwhile, the first bearing and the second bearing are matched to keep the rotating shaft from moving in a stringing way. The skeleton oil blanket realizes moving seal to the rotation axis, prevents that powder from dropping to the rotation axis bottom and influencing the motor. After the material cleaning plate is disassembled, the residual powder on the spiral conveyor and the rotating shaft can be directly cleaned through the material cleaning opening.

Drawings

The utility model is further described below with reference to the accompanying drawings.

Fig. 1 is a front cross-sectional view of a quick release positioning structure of a screw conveyor.

Fig. 2 is a schematic structural view of a storage bin, an auger and a rotating shaft.

Fig. 3 is a schematic view of the structure of the screw conveyor.

Fig. 4 is a schematic structural view of the rotary shaft.

Fig. 5 is a left side view of a quick release positioning structure of the screw conveyor.

Fig. 6 is a top view of the storage bin.

Detailed Description

The utility model provides a screw conveyer quick detach location structure as shown in fig. 1 and 2, screw conveyer 1 is equipped with shell 2 outward, screw conveyer 1's both ends communicate respectively and are had feeding storehouse 3 and storage silo 4, screw conveyer 1 vertical setting, feeding storehouse 3 is located screw conveyer 1's lower extreme, storage silo 4 is located screw conveyer 1's upper end, screw conveyer 1 can carry the powder granule from the feeding storehouse 3 of lower extreme to the storage silo 4 of upper end. The screw conveyor 1 is connected with a rotating shaft 5 near the feeding bin end, and the rotating shaft 5 is in transmission connection with a driving mechanism motor 6. As shown in fig. 3 and 4, the screw conveyor 1 is provided with a tapered connecting portion 7 and a positioning pin 8, the tapered connecting portion 7 is located at a position, close to the feeding bin end, of the screw conveyor 1, the diameter of the tapered connecting portion 7 gradually decreases from the screw conveyor 1 end, the rotating shaft 5 is provided with a tapered opening portion 9, the tapered opening portion 9 is provided with a positioning hole 10, the tapered connecting portion 7 is matched with the tapered opening portion 9, the tapered connecting portion 7 of the screw conveyor 1 is detachably connected with the rotating shaft 5 in an inserting mode, the positioning pin 8 is fixedly connected with the tapered connecting portion 7, and the positioning pin 8 is installed in the positioning hole 10.

The screw conveyor 1 and the rotating shaft 5 transmit torque through the locating pin 8 and the locating hole 10, the motor 6 drives the rotating shaft 5 to rotate, and the rotating shaft 5 drives the screw conveyor 1 to rotate, so that powder in the feeding bin 3 is conveyed to the storage bin 4 through the screw conveyor 1. The conical connecting part 7 and the conical opening part 9 form conical guide, so that the screw conveyor 1 and the rotating shaft 5 are convenient to install. When in installation, the positioning pin 8 of the screw conveyor 1 is aligned with the positioning hole 10 of the rotating shaft 5, so that one end of the screw conveyor 1 is installed in the rotating shaft 5; during cleaning and maintenance, as the lower end of the screw conveyer 1 is positioned by the conical surface, the screw conveyer 1 is pulled out in the vertical direction easily, and the screw conveyer 1 and the rotating shaft 5 can be separated only by pulling out the screw conveyer 1 upwards, so that the residual powder of the screw conveyer 1 can be cleaned conveniently. The positioning pin 8 is in clearance fit with the positioning hole 10, so that torque transmission can be realized, and the screw conveyor 1 and the rotating shaft 5 can be separated upwards.

As shown in fig. 3, in this embodiment, the positioning pin 8 is symmetrically disposed on the tapered connection portion 7, the positioning pin 8 is disposed along the radial direction of the tapered connection portion 7, two ends of the positioning pin 8 are located outside the tapered connection portion 7, the middle portion of the positioning pin 8 is located in the tapered connection portion 7, the positioning pin 8 is a cylindrical positioning pin, the positioning pin 8 and the tapered connection portion 7 are fixedly connected or integrally formed by interference fit, and the positioning pin 8 is matched with the positioning hole 10. Symmetrically arranged locating pins 8 facilitate the transfer of torque to the screw conveyor 1.

As shown in fig. 5, the bottom of the screw conveyor 1 and the rotating shaft 5 are installed in a feeding seat 11, one side of the feeding seat 11 is provided with a feeding bin 3, the other side of the feeding seat 11 is provided with a material cleaning opening 12, and a detachable material cleaning plate 13 is fixed on the material cleaning opening 12. After the material cleaning plate 13 is disassembled, the residual powder on the screw conveyor 1 and the rotating shaft 5 can be directly cleaned through the material cleaning opening 12.

As shown in fig. 1 and 6, a discharge port 14 is provided in the storage bin 4, the discharge port 14 is provided with a fixed plate 15, the other end of the screw conveyor 1 is mounted on the fixed plate 15, and a first bearing 16 is provided between the fixed plate 15 and the screw conveyor 1. The powder enters the storage bin 4 from the discharge hole 14, and the fixing plate 15 is used for limiting the position of the screw conveyor 1 and preventing the screw conveyor 1 from shaking up and down when rotating. The upper end of the screw conveyor 1 provides a pivot point of rotation by means of a first bearing 16.

As shown in fig. 1, the outer periphery of the rotary shaft 5 is provided with a second bearing 17 and a skeleton oil seal 18, and the skeleton oil seal 18 is located at the installation position of the rotary shaft 5 and the screw conveyor 1. The second bearing 17 is located at the lower end of the framework oil seal 18, the second bearing 17 facilitates the rotation of the rotating shaft 5, and meanwhile the first bearing 16 and the second bearing 17 cooperate to keep the rotating shaft 5 from bouncing. The skeleton oil seal 18 realizes dynamic seal to the rotating shaft 5, and prevents powder from falling to the bottom of the rotating shaft 5 to influence the motor 6.

The above is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any simple changes, equivalent substitutions or modifications made on the basis of the present utility model to solve the substantially same technical problems and achieve the substantially same technical effects are encompassed within the scope of the present utility model.

Claims

1. Screw conveyer quick detach location structure, screw conveyer's both ends communicate respectively has feeding storehouse and storage silo, its characterized in that: the screw conveyer is connected with the rotation axis, the rotation axis is connected with actuating mechanism transmission, the one end of screw conveyer is equipped with toper connecting portion, the rotation axis is equipped with the conical surface opening, toper connecting portion with conical surface opening assorted, screw conveyer with the rotation axis passes through toper connecting portion with conical surface opening detachably grafting cooperation.

2. The screw conveyor quick release positioning structure according to claim 1, wherein: the screw conveyer is provided with a locating pin, the rotating shaft is provided with a locating hole, and when the conical connecting part is placed in the conical surface opening part, the locating pin is installed in the locating hole.

3. The screw conveyor quick release positioning structure according to claim 2, wherein: the locating pin symmetry set up in toper connecting portion, the locating pin is followed the radial link up of toper connecting portion, the both ends of locating pin are located outside the toper connecting portion, locating pin and toper connecting portion fixed connection or integrated into one piece, the locating pin with the location trompil phase-match.

4. A screw conveyor quick release positioning structure according to claim 3, wherein: the locating pin is in clearance fit with the locating hole.

5. A quick release positioning structure for a screw conveyor according to any one of claims 1 to 4, wherein: the screw conveyer is vertically arranged, and the rotating shaft is positioned at the end, close to the feeding bin, of the screw conveyer.

6. The screw conveyor quick release positioning structure according to claim 1, wherein: the storage bin is internally provided with a discharge hole, the discharge hole is provided with a fixed plate, and the other end of the screw conveyer is arranged on the fixed plate.

7. The quick release positioning structure of a screw conveyor according to claim 6, wherein: a first bearing is arranged between the fixed plate and the screw conveyor.

8. The screw conveyor quick release positioning structure according to claim 1, wherein: the screw conveyer with the rotation axis is installed in the feeding seat, one side of feeding seat is equipped with the feeding storehouse, the opposite side of feeding seat is equipped with the clearance mouth, the clearance mouth is fixed with detachable clearance board.

9. The screw conveyor quick release positioning structure according to claim 1, wherein: the outer periphery of the rotating shaft is provided with a second bearing and a framework oil seal, the framework oil seal is positioned at the installation position of the rotating shaft and the screw conveyor, and the second bearing is positioned at the lower end of the framework oil seal.

10. An adhesive sprays 3D printer, its characterized in that: comprising the screw conveyor quick-release positioning structure according to any one of claims 1 to 9.