CN-118479147-B - Food packaging bag, manufacturing method and manufacturing equipment

Abstract

The application relates to a food packaging bag, a manufacturing method and manufacturing equipment, and relates to the technical field of food bags, wherein the food bag comprises at least two bag surfaces; the bag surface is connected relatively to form a containing cavity, a concave part is arranged on the bag surface, wherein an air outlet channel is formed by the concave parts on the bag surface which are connected relatively, and the air outlet channel is communicated with the outside. The application has the effect of reducing the explosion phenomenon during the processing of the food bag.

Inventors

• QIAN HUI
• WEN LIXIANG

Assignees

• 上海上源印务有限公司

Dates

Publication Date

20260512

Application Date

20240527

Claims (3)

1. 1. A food bag manufacturing device comprises at least two bag surfaces (1), wherein the bag surfaces (1) are oppositely connected to form a containing cavity, a concave part (2) is arranged on the bag surfaces (1), wherein the concave part (2) on the bag surfaces (1) which are oppositely connected form an air outlet channel which is communicated with the outside, the bag surfaces (1) are provided with first side edges (11) arranged along the row direction and second side edges (12) arranged along the column direction, the first side edges (11) of the bag surfaces (1) which are oppositely connected are connected to form a first sealing part (111), the second side edges (12) of the bag surfaces (1) which are oppositely connected are connected to form a second sealing part (121), the ratio of the width of the first sealing part (111) to the width of the second sealing part (121) is between 0.8 and 1.2, a third sealing part (21) is formed at the joint of the concave part (2) of the bag surfaces (1) which are oppositely connected, the width of the third sealing part (21) is smaller than the width of the second sealing part (21) to the second sealing part (121), and the third sealing part (21) is smaller than the width of the third sealing part (21.0.2) between the first sealing part and the second sealing part (121) The second sealing part (121) is provided with a friction part (3), and is characterized in that the manufacturing device comprises a processing platform (4), a heat sealing assembly (5) and a lifting assembly (6), the heat sealing assembly (5) comprises two heat sealing plates (51), the heat sealing plates (51) are provided with a protruding part (513), a heat source part (511) and an electrostatic part (512), the protruding part (513) is matched with the concave part (2), the heat source part (511) is used for conducting heat treatment on a bag surface (1), the electrostatic part (512) is used for adsorbing the bag surface (1), one heat sealing plate (51) is arranged on the processing platform (4), the lifting assembly (6) is arranged on the processing platform (4), the other heat sealing plate (51) is connected with the lifting assembly (6), the two heat sealing plates (51) form a heat sealing space for the food bag, and the lifting assembly (6) is used for driving the heat sealing plate (51) above to be close to the processing platform (51) on the processing platform (4); The lifting assembly (6) comprises a lifting rod (61), a lifting screw rod (62) and a lifting motor (63), wherein the lifting rod (61) is arranged on the processing platform (4), the lifting screw rod (62) is rotatably connected to the lifting rod (61), the axial direction of the lifting screw rod (62) is the same as the axial direction of the lifting rod (61), the heat sealing plate (51) above is in threaded connection with the lifting screw rod (62) and is in sliding connection with the lifting rod (61), the lifting motor (63) is used for driving the lifting screw rod (62) to rotate, the manufacturing device further comprises a glue smearing plate (7), the lifting rod (61) is rotatably arranged on the processing platform (4), the glue smearing plate (7) is in threaded connection with the lifting screw rod (62), the glue smearing plate (7) is in sliding connection with the lifting rod (61), and the glue smearing plate (7) and the heat sealing plate (51) are symmetrically arranged around the axial direction of the lifting rod (61).
2. 2. The food bag manufacturing device according to claim 1, further comprising a rotating assembly (8) for driving the lifting rod (61) to rotate, wherein the rotating assembly (8) comprises a rotating motor (81), a driving gear (82) and a driven gear (83), the driven gear (83) is arranged on the lifting rod (61), the rotating motor (81) is arranged on the processing platform (4), the driving gear (82) is arranged on an output shaft of the rotating motor (81), the driving gear (82) is meshed with the driven gear (83), and the rotating motor (81) is used for driving the driving gear (82) to rotate.
3. 3. A manufacturing method of a food bag manufacturing device comprises a processing platform (4), a heat sealing assembly (5), a lifting assembly (6), a plastering plate (7) and a rotating assembly (8), wherein the heat sealing assembly (5) comprises two heat sealing plates (51), a protruding portion (513), a heat source portion (511) and an electrostatic portion (512) are arranged on the heat sealing plates (51), the protruding portion (513) is matched with a concave portion (2), the heat source portion (511) is used for conducting heat treatment on a bag surface (1), the electrostatic portion (512) is used for adsorbing the bag surface (1), one heat sealing plate (51) is arranged on the processing platform (4), the lifting assembly (6) is arranged on the processing platform (4), the other heat sealing plate (51) is connected with the lifting assembly (6), the two heat sealing plates (51) form a heat sealing space for the food bag, and the lifting assembly (6) is used for driving the heat sealing plate (51) located above to be close to the processing platform (51) located on the heat sealing platform (4); the plastering plate (7) is connected to the lifting screw (62) in a threaded manner, the plastering plate (7) is connected with the lifting rod (61) in a sliding manner, and the plastering plate (7) and the heat sealing plate (51) are symmetrically arranged relative to the axial direction of the lifting rod (61); The rotating assembly (8) comprises a rotating motor (81), a driving gear (82) and a driven gear (83), wherein the driven gear (83) is arranged on the lifting rod (61), the rotating motor (81) is arranged on the processing platform (4), the driving gear (82) is arranged on an output shaft of the rotating motor (81), the driving gear (82) is meshed with the driven gear (83), and the rotating motor (81) is used for driving the driving gear (82) to rotate, and the manufacturing method is characterized by comprising the following steps: Placing one bag surface (1) on a heat sealing plate (51) on a processing platform (4) through an electrostatic part (512); The other bag surface (1) is arranged on the heat sealing plate (51) above through the electrostatic part (512); The adjusting and rotating assembly (8), the plastering plate (7) is positioned right above the heat sealing plate (51) on the processing platform (4), the lifting assembly (6) is started, the plastering plate (7) is close to the heat sealing plate (51) on the processing platform (4), and the plastering plate (7) performs plastering operation on the bag surface (1) placed on the heat sealing plate (51); and the rotating assembly (8) is regulated, the heat sealing plate (51) is positioned right above the heat sealing plate (51) on the processing platform (4), the lifting assembly (6) is started, and the lifting assembly (6) drives the heat sealing plate (51) above to be close to the heat sealing plate (51) positioned on the processing platform (4).

Description

Food packaging bag, manufacturing method and manufacturing equipment Technical Field The application relates to the technical field of food bags, in particular to a food packaging bag, a manufacturing method and manufacturing equipment. Background Along with the acceleration of the life rhythm, the instant product is favored, and when the instant product is used by consumers, the instant product can be used only by putting food into a microwave oven for heating. When the food is heated, the volume of the food bag is increased, explosion phenomenon can occur, and certain influence is caused on the user. Disclosure of Invention In order to reduce the phenomenon that a food bag explodes when heated, the application provides a food packaging bag, a manufacturing method and manufacturing equipment. In a first aspect, the application provides a food packaging bag, which adopts the following technical scheme: The food packaging bag comprises at least two bag surfaces, wherein the bag surfaces are oppositely connected to form a containing cavity, a concave part is arranged on each bag surface, an air outlet channel is formed in the concave part on each bag surface which is oppositely connected, and the air outlet channels are communicated with the outside. Through adopting above-mentioned technical scheme, when heating food, the food bag inflation, when the food bag inflation to certain volume, hold the chamber and go out the air passage intercommunication, hold the partial gas in the chamber and go out the air passage and discharge, can reduce the atmospheric pressure in the food bag, and then reduce the phenomenon that the explosion appears in the food bag heating process. Optionally, the bag surface is provided with a first side edge arranged along the row direction and a second side edge arranged along the column direction, the first side edges of the bag surfaces which are connected relatively are connected to form a first sealing part, the second side edges of the bag surfaces which are connected relatively are connected to form a second sealing part, and the ratio of the widths of the first sealing part to the second sealing part is 0.8-1.2. Through adopting above-mentioned technical scheme, when the relative bag face is connected, first side forms first sealing portion, and the second side forms second sealing portion, sets up the width of first sealing portion and second sealing portion between 0.8~1.2, when heating food, has certain sealed fixed difference between first sealing portion and the second sealing portion for the inside atmospheric pressure of food bag can release under certain degree, under the effect of guaranteeing the food bag packing seal, can reduce the phenomenon of explosion when heating. Optionally, a third sealing part is formed at the joint of the concave parts of the bag faces which are connected oppositely, the third sealing part is connected with the second sealing part, and the width of the third sealing part is smaller than that of the second sealing part. Through adopting above-mentioned technical scheme, set the width of third sealing portion to be less than the width of second sealing portion, when heating the food bag, lose sealed effect earlier by the third sealing portion that the depressed part formed, at this moment, the inside gas of food bag enters into the depressed part to discharge through the passageway of giving vent to anger, realize the depressurization to the inside of food bag, thereby reduce the phenomenon that the food bag explodes in the heating. Optionally, a ratio of the width of the third sealing portion to the second sealing portion is between 0.2 and 0.3. Through adopting above-mentioned technical scheme, set up the ratio of the width of third sealing portion and second sealing portion between 0.2~0.3, can realize the sealed inefficacy of third sealing portion fast for the too high atmospheric pressure can reduce fast in the food bag when food heats, reduces the phenomenon that the explosion appears in the food bag. Optionally, the first sealing part and the second sealing part are provided with friction parts. Through adopting above-mentioned technical scheme, set up friction portion on first sealing portion, second sealing portion, can increase the frictional force between consumer and the food bag on the one hand, improve the stability when consumer takes food, on the other hand improves the joint strength between the bag face, improves the purpose of the sealed effect of food bag. In a second aspect, the present application provides a food bag manufacturing apparatus, which adopts the following technical scheme: The manufacturing device comprises a processing platform, a heat sealing assembly and a lifting assembly, wherein the heat sealing assembly comprises two heat sealing plates, the heat sealing plate is provided with a protruding portion, a heat source portion and an electrostatic portion, the protruding portion and the concave portion are ar