Granted Patent B2

US 12,617,059 · App. 17/970,352 · Granted May 5, 2026

Inventors: Jingwei Ning (Ningbo, CN); Wen Liu (Ningbo, CN); Hongwei Cui (Ningbo, CN); Kai Lin (Ningbo, CN); Xiang Yan (Ningbo, CN); Hang Wang (Ningbo, CN); Zhiwen Guo (Ningbo, CN); Chi Zhang (Ningbo, CN); Pengfei Liu (Ningbo, CN)

Assignee: Zhejiang Wanli University

B24C5/04B24C7/0046B24C3/06

Abstract

Claims (16)

1 . A sandblasting device for automobile part processing, comprising:

a sand cylinder ( 3 ),

a feeding pipeline ( 4 ), and

a spray head device comprising:

a spray head body ( 1 ) and a connecting pipe ( 2 ), wherein a conical through hole ( 11 ) is penetratingly arranged in the spray head body ( 1 ), one end of the conical through hole ( 11 ) forms a discharge port ( 12 ), and the other end of the conical through hole ( 11 ) forms a feed port ( 13 ); a caliber of the feed port ( 13 ) is greater than that of the discharge port ( 12 ), the connecting pipe ( 2 ) is fixedly connected to the feed port ( 13 ) of the spray head body ( 1 ), the connecting pipe ( 2 ) is arranged coaxially with the conical through hole ( 11 ), and the caliber of the connecting pipe ( 2 ) is adapted to that of the feeding port ( 13 );

multiple spiral trunkings ( 14 ) are arranged at intervals on an inner wall of the conical through hole ( 11 ), the spiral trunkings ( 14 ) extend from one end of the feeding port ( 13 ) to one end of the discharging port ( 12 ), and two ends of the spiral trunkings ( 14 ) are arranged to be through the spray head body ( 1 ); and

multiple injection pipes ( 15 ) are evenly spaced along a circumferential direction of a side wall of the connecting pipe ( 2 ), and the injection pipes ( 15 ) communicate with the connecting pipe ( 2 );

wherein one end of the feeding pipeline ( 4 ) is connected to the sand cylinder ( 3 ), and the other end of the feeding pipeline ( 4 ) is connected to the connecting pipe ( 2 ) of the spray head device, and microtextures ( 5 ) are provided at intervals on the inner wall of the feeding pipeline ( 4 ).

2 . The sandblasting device for automobile part processing according to claim 1 , wherein the feeding pipeline ( 4 ) comprises a main pipe ( 41 ), a branch pipe ( 42 ), and a branch joint ( 43 ), one end of the main pipe ( 41 ) being in communication with a plurality of the branch pipes ( 42 ) via the branch joint ( 43 ), and the spray head device being provided at a tail end of the branch pipe ( 42 ); and the microtexture ( 5 ) is arranged on the inner wall of the branch joint ( 43 ).

3 . The sandblasting device for automobile part processing according to claim 2 , further comprising a jig ( 8 ) for holding an automobile part, wherein the jig comprises multiple jigs ( 8 ), and each of the multiple jigs ( 8 ) are respectively provided toward the spray head device.

4 . The sandblasting device for automobile part processing according to claim 3 , further comprising a box body ( 9 ) having a top cover ( 90 ) at an upper end of the box body ( 9 ), wherein the sand cylinder ( 3 ) is mounted to the upper end of the top cover ( 90 ), the main pipe ( 41 ) penetrates through the top cover ( 90 ) and is used to extend to an interior of the box body ( 9 ), and multiple jigs ( 8 ) are provided inside the box body ( 9 ) and are respectively provided toward the spray head device.

5 . The sandblasting device for automobile part processing according to claim 1 , further comprising an air compressor apparatus ( 6 ) and a breathing line ( 7 ), wherein the air compressor apparatus ( 6 ) communicates with the connecting pipe ( 2 ) of the spray head device via the breathing line ( 7 ).

6 . The sandblasting device for automobile part processing according to claim 5 , wherein the breathing line ( 7 ) comprises a main breather pipe ( 71 ), a distributor ( 72 ), and a branch breather pipe ( 73 ), one end of the main breather pipe ( 71 ) being connected to the air compressor apparatus ( 6 ), the other end of the main breather pipe ( 71 ) being in communication with a plurality of the branch breather pipes ( 73 ) via the distributor ( 72 ), and the tail end of the branch breather pipe ( 73 ) being in communication with the injection pipe ( 15 ) of the spray head device.

7 . The sandblasting device of claim 1 , wherein the spiral trunking ( 14 ) extends in the form of a conical helix.

8 . The sandblasting device of claim 1 , wherein the side wall of the pipe ( 2 ) is provided with the plurality of mounting blocks ( 16 ) at even intervals along its circumferential direction, a communication hole ( 17 ) is penetratingly provided in each of the mounting blocks ( 16 ), one end of each communication hole ( 17 ) penetrates through the side wall of the connecting pipe ( 2 ) to communicate with the connecting pipe ( 2 ), and the mounting block ( 16 ) communicates with its respective injection pipe ( 15 ) through its respective communication hole ( 17 ); and

one end of each injection pipe ( 15 ) away from the connecting pipe ( 2 ) is used for connecting with the air compressor apparatus ( 6 ).

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (18)