US 11,999,127 B2
Automatic packaging bag production device and method
Xianfeng Peng, Anqing (CN); Fenglin Jiang, Anqing (CN); Zhaorong Lv, Anqing (CN); Ziheng Lv, Anqing (CN); and Xiang Ma, Anqing (CN)
Assigned to ANQING HENG CHANG MACHINERY CO., LTD., Anqing (CN)
Filed by Anqing HENG CHANG Machinery Co., Ltd., Anqing (CN)
Filed on Nov. 15, 2023, as Appl. No. 18/509,348.
Application 18/509,348 is a continuation of application No. PCT/CN2023/095286, filed on May 19, 2023.
Claims priority of application No. 202210862081.0 (CN), filed on Jul. 20, 2022.
Prior Publication US 2024/0083132 A1, Mar. 14, 2024
Int. Cl. B31B 70/00 (2017.01); B31B 70/02 (2017.01); B31B 70/14 (2017.01); B31B 70/64 (2017.01)
CPC B31B 70/25 (2017.08) [B31B 70/02 (2017.08); B31B 70/142 (2017.08); B31B 70/642 (2017.08)] 20 Claims
OG exemplary drawing
 
1. An automatic packaging bag production device, comprising:
an easy-tear line forming mechanism, comprising a first passage, and configured to form an easy-tear line on a belt-shaped material passing through the first passage;
a sealing and cutting mechanism, comprising a second base plate, and a cutting assembly and a sealing assembly arranged on the second base plate, wherein the cutting assembly comprises an upper cutter and a lower cutter; a second passage is formed between the upper cutter and the lower cutter, and the upper cutter and the lower cutter are driven by a third driving element to move close to or away from each other; the sealing assembly comprises an upper sealer and a lower sealer; and a third passage is formed between the upper sealer and the lower sealer, and the upper sealer and the lower sealer are driven by a fourth driving element to move close to or away from each other;
a tray, wherein the first passage, the second passage, the third passage, and the tray are sequentially arranged; and
a traction mechanism, configured to pull the belt-shaped material for a sequence of operations as follows: in the first passage, the easy-tear line forming mechanism forms the easy-tear line on the belt-shaped material; in the second passage, the upper cutter and the lower cutter move close to each other to cut a packaging bag, such that the packaging bag falls onto the tray; and in the third passage, the upper sealer and the lower sealer move close to each other to heat-seal a tail end of the packaging bag.