US 11,787,583 B2
Automatic pressing power device of vacuum packaging machine
Kunhua Chen, Shaoguan (CN)
Assigned to SHENZHEN AIPU ELECTRONICS TECHNOLOGY CO. LTD., Shenzhen (CN)
Filed by Shenzhen Aipu Electronics Technology Co. Ltd., Shenzhen (CN)
Filed on Feb. 11, 2022, as Appl. No. 17/670,315.
Prior Publication US 2023/0141249 A1, May 11, 2023
Int. Cl. B65B 31/06 (2006.01); B65B 31/02 (2006.01); B65B 51/14 (2006.01)
CPC B65B 31/06 (2013.01) [B65B 31/024 (2013.01); B65B 51/146 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An automatic pressing power device for a vacuum packaging machine, characterized in that the automatic pressing power device comprises a main body (1), a power plate (2) and a power airbag (4);
wherein the power plate (2) is connected with the main body (1) through the power airbag (4) and forms an extensible closed cavity (5);
wherein the bottom of the main body (1) is provided with an air nozzle (11) in communication with the closed cavity (5);
wherein a pressure plate (3) is arranged under the power plate (2);
wherein the power airbag (4) is annular;
wherein an annular inner side of the power airbag (4) is compacted and fixed by the power plate (2) and the pressure plate (3);
wherein an annular outer side of the power airbag (4) is pressed and fixed by the main body (1) and pressure ring (6);
wherein, in the closed cavity (5), the pressure plate (3) comprises a first component on the interior of the pressure plate (3), and the main body comprises a second component on the interior of the main body (1), wherein the first component and the second component are socketed with each other and a first return spring (7) is provided outside, wherein one end of the first return spring (7) is anchored at the inner side of the pressure plate (3), and the other end of the first return spring (7) is anchored at the inner side of the main body (1) to forma first telescopic mechanism (10).