Food packaging bag, manufacturing method and manufacturing apparatus

Abstract

The application relates to a food packaging bag, a manufacturing method and a manufacturing device, and relates to the technical field of food packaging bags.The food packaging bag comprises at least two bag surfaces; the bag surfaces are connected oppositely to form a containing cavity; and recessed parts are arranged on the bag surfaces, wherein the recessed parts on the oppositely connected bag surfaces form air outlet channels, and the air outlet channels are in communication with the outside. The application has the effect of reducing the explosion phenomenon during food packaging bag processing.

Description

Technical Field

[0001] This application relates to the field of food bag technology, and in particular to a food packaging bag, manufacturing method and manufacturing equipment. Background Technology

[0002] With the fast pace of life, ready-to-eat products are gaining popularity. Consumers simply need to heat the food in a microwave. However, when heating food, the food bag expands in volume, potentially causing it to explode, which could pose a risk to consumers. Summary of the Invention

[0003] To reduce the risk of food bags exploding when heated, this application provides a food packaging bag, a manufacturing method, and manufacturing equipment.

[0004] Firstly, this application provides a food packaging bag, which adopts the following technical solution:

[0005] A food packaging bag includes at least two bag faces; the bag faces are connected to each other to form a receiving cavity; the bag faces are provided with recesses, wherein the recesses on the connected bag faces form an air venting channel, and the air venting channel is connected to the outside.

[0006] By adopting the above technical solution, when food is heated, the food bag expands. When the food bag expands to a certain volume, the containing cavity is connected to the air outlet channel. Some of the gas in the containing cavity is discharged through the air outlet channel, which can reduce the air pressure in the food bag and thus reduce the possibility of explosion during the heating process of the food bag.

[0007] Optionally, the bag surface has 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 that are connected to each other form a first sealing portion; the second side edges of the bag surfaces that are connected to each other form a second sealing portion; the width ratio of the first sealing portion to the second sealing portion is between 0.8 and 1.2.

[0008] By adopting the above technical solution, when the opposite bag surfaces are connected, the first side forms a first sealing part and the second side forms a second sealing part. The width of the first sealing part and the second sealing part is set between 0.8 and 1.2. When the food is heated, there is a certain sealing and fixing difference between the first sealing part and the second sealing part, which allows the air pressure inside the food bag to be released to a certain extent. While ensuring the sealing effect of the food bag packaging, the phenomenon of explosion during heating can be reduced.

[0009] Optionally, a third sealing portion is formed at the connection of the recessed portions of the oppositely connected bag surfaces; the third sealing portion is connected to the second sealing portion, and the width of the third sealing portion is smaller than that of the second sealing portion.

[0010] By adopting the above technical solution, the width of the third sealing part is set to be smaller than the width of the second sealing part. When the food bag is heated, the third sealing part formed by the recessed part loses its sealing effect first. At this time, the gas inside the food bag enters the recessed part and is discharged through the gas outlet channel, thereby reducing the pressure inside the food bag and reducing the possibility of the food bag exploding during heating.

[0011] Optionally, the width ratio of the third sealing portion to the width of the second sealing portion is between 0.2 and 0.3.

[0012] By adopting the above technical solution, the width ratio of the third sealing part to the second sealing part is set between 0.2 and 0.3, which can quickly achieve the sealing failure of the third sealing part, so that the excessively high air pressure inside the food bag can be quickly reduced when the food is heated, thus reducing the possibility of the food bag exploding.

[0013] Optionally, the first sealing portion and the second sealing portion have friction portions.

[0014] By adopting the above technical solution, friction parts are provided on the first sealing part and the second sealing part. On the one hand, this can increase the friction between the consumer and the food bag, improve the stability when the consumer takes out the food, and on the other hand, improve the connection strength between the bag surfaces, thereby improving the sealing effect of the food bag.

[0015] Secondly, the food bag manufacturing apparatus provided in this application adopts the following technical solution:

[0016] Optionally, the manufacturing apparatus includes a processing platform, a heat-sealing assembly, and a lifting assembly; the heat-sealing assembly includes two heat-sealing plates; each heat-sealing plate has a protrusion, a heat source, and an electrostatic part, the protrusion cooperating with the recess; the heat source is used to heat the bag surface; the electrostatic part is used to adsorb the bag surface; one heat-sealing plate is disposed on the processing platform; the lifting assembly is disposed on the processing platform, and the other heat-sealing plate is connected to the lifting assembly, wherein the two heat-sealing plates form a heat-sealing space for the food bag; the lifting assembly is used to drive the upper heat-sealing plate closer to the heat-sealing plate on the processing platform.

[0017] By adopting the above technical solution, one bag surface is placed on the heat-sealing plate of the processing platform, and the electrostatic part adsorbs and fixes the bag surface. The other bag surface is placed on the heat-sealing plate located on the lifting assembly, and the electrostatic part adsorbs and fixes the bag surface. Then, heat-sealing adhesive is applied to the bag surface on the heat-sealing plate on the processing platform. The lifting assembly is turned on, and the lifting assembly moves the heat-sealing plate close to the heat-sealing plate on the processing platform. When the two heat-sealing plates come into contact, the heat source is turned on, and the heat source heat-seales the bag surface, thus achieving the purpose of processing food bags.

[0018] Optionally, the lifting assembly includes a lifting rod, a lifting screw, and a lifting motor; the lifting rod is disposed on the processing platform; the lifting screw is rotatably connected to the lifting rod, the axial direction of the lifting screw is the same as the axial direction of the lifting rod, the heat-sealing plate located above is threadedly connected to the lifting screw and slidably connected to the lifting rod; the lifting motor is used to drive the lifting screw to rotate.

[0019] By adopting the above technical solution, the lifting motor is turned on, the lifting motor rotates, the lifting screw rotates on the lifting rod, and the lifting screw rotates, which drives the heat sealing plate to move. The heat sealing plate slides on the lifting rod, thereby achieving the purpose of driving the heat sealing plate located above to approach the heat sealing plate located on the processing platform.

[0020] Optionally, the manufacturing apparatus further includes an adhesive applicator; the lifting rod is rotatably mounted on the processing platform; the adhesive applicator is threadedly connected to the lifting screw, the adhesive applicator is slidably connected to the lifting rod, and the adhesive applicator and the heat-sealing plate are symmetrically arranged about the lifting rod.

[0021] By adopting the above technical solution, rotating the lifting rod causes the adhesive applicator and heat-sealing plate to rotate. The adhesive applicator is located directly above a heat-sealing plate. Adjusting the lifting assembly causes the adhesive applicator to move, and the adhesive applicator performs adhesive applicating operations on the bag surface located on the heat-sealing plate, thereby realizing automated adhesive applicating operations on the bag surface and improving the processing efficiency of food bags.

[0022] Optionally, the manufacturing apparatus further includes a rotating assembly for driving the lifting rod to rotate; the rotating assembly includes a rotating motor, a driving gear, and a driven gear; the driven gear is disposed on the lifting rod; the rotating motor is disposed on the processing platform, the driving gear is disposed on the output shaft of the rotating motor, the driving gear meshes with the driven gear, and the rotating motor is used to drive the driving gear to rotate.

[0023] By adopting the above technical solution, the rotating motor is turned on, and the rotating motor drives the drive gear to rotate. The drive gear drives the driven gear to rotate, and the driven gear drives the lifting rod to rotate. The rotation of the lifting rod drives the glue-applying plate and the heat-sealing plate to rotate. When the heat-sealing plate moves above the heat-sealing plate on the processing platform, the bag surface can be heat-sealed. When the glue-applying plate moves above a heat-sealing plate, the bag surface can be glue-applied. This can achieve the purpose of continuous and uninterrupted processing of food bags, thereby improving the processing efficiency of food bags.

[0024] A method for manufacturing a food bag manufacturing apparatus includes the following manufacturing steps:

[0025] A bag is placed on a heat-sealing plate on the processing platform via an electrostatic device;

[0026] The other side of the bag is placed on the heat-sealing plate located above via an electrostatic part;

[0027] Adjust the rotating assembly so that the adhesive applicator is directly above the heat-sealing plate on the processing platform. Activate the lifting assembly so that the adhesive applicator is close to the heat-sealing plate and applies adhesive to the bag surface placed on the heat-sealing plate.

[0028] Adjust the rotating assembly so that the heat sealing plate is directly above the heat sealing plate on the processing platform. Activate the lifting assembly, which will move the upper heat sealing plate closer to the heat sealing plate on the processing platform.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] 1. By setting the width of the third sealing part to be smaller than that of the second sealing part, when the food bag is heated, the third sealing part formed by the recessed part loses its sealing effect first. At this time, the gas inside the food bag enters the recessed part and is discharged through the gas outlet channel, thereby reducing the pressure inside the food bag and reducing the possibility of the food bag exploding during heating.

[0031] 2. By providing friction parts on the first sealing part and the second sealing part, on the one hand, the friction between the consumer and the food bag can be increased, improving the stability when the consumer takes out the food; on the other hand, the connection strength between the bag surfaces can be improved, thereby enhancing the sealing effect of the food bag.

[0032] 3. By turning on the lifting motor, the lifting motor rotates, which drives the lifting screw to rotate. The lifting screw rotates on the lifting rod, and when the lifting screw rotates, it drives the heat sealing plate to move. The heat sealing plate slides on the lifting rod, thereby driving the heat sealing plate located above to move closer to the heat sealing plate located on the processing platform.

[0033] 4. By rotating the lifting rod, the lifting rod drives the glue-applying plate and the heat-sealing plate to rotate. The glue-applying plate is located directly above the heat-sealing plate. Adjusting the lifting component drives the glue-applying plate to move. The glue-applying plate performs glue application on the bag surface located on the heat-sealing plate, realizing automated glue application on the bag surface, thereby improving the processing efficiency of food bags. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of a food bag manufacturing apparatus according to this application, which manufactures food bags.

[0036] Figure 2 yes Figure 1 A schematic diagram of part A.

[0037] Figure 3 This is a schematic diagram of another perspective on the manufacturing of food bags using a food bag manufacturing apparatus according to this application.

[0038] Figure 4 yes Figure 3 A schematic diagram of part B.

[0039] Figure 5 yes Figure 4 A schematic diagram of section C.

[0040] Figure 6 This is a schematic diagram of a food bag according to this application.

[0041] Figure 7 yes Figure 6 A schematic diagram of part D.

[0042] Explanation of reference numerals in the attached drawings: 1. Bag surface; 11. First side; 111. First sealing part; 12. Second side; 121. Second sealing part; 2. Recessed part; 21. Third sealing part; 211. First straight section; 212. Second straight section; 213. Connecting section; 3. Friction part; 4. Processing platform; 5. Heat sealing assembly; 51. Heat sealing plate; 511. Heat source part; 512. Static electricity part; 513. Protrusion part; 6. Lifting assembly; 61. Lifting rod; 62. Lifting screw; 63. Lifting motor; 7. Glue-applying plate; 8. Rotating assembly; 81. Rotating motor; 82. Driven gear; 83. Driven gear. Detailed Implementation

[0043] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention is further described below.

[0044] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0045] In related technologies, with the acceleration of the pace of life, pre-packaged food has come into people's view. The inventor discovered that food bags often explode when heated, and the explosion openings of food bags often appear on both sides of the length of the food bag. Food bag explosions can have a certain impact on consumers.

[0046] Based on this, embodiments of this application disclose a food packaging bag, a manufacturing method, and manufacturing equipment. This food bag has the effect of reducing the risk of explosion; according to the manufacturing method of the manufacturing apparatus, the food bag can be manufactured using this food bag manufacturing apparatus, and the food bag manufacturing apparatus can increase the manufacturing speed of the food bag.

[0047] Firstly, this application provides a food packaging bag.

[0048] Reference Figure 6 A food bag includes at least two bag faces 1. It is understood that the food bag can have multiple bag faces 1, which are connected to each other to form a receiving cavity. In the embodiments of this application, no specific limit is made on the number of bag faces 1.

[0049] As an example, there are two bag surfaces 1, which are connected to each other to form a receiving cavity; each bag surface 1 is provided with a recess 2, wherein when the two bag surfaces 1 are connected to each other, the recess 2 on the bag surface 1 forms an air outlet channel, which is connected to the outside.

[0050] Reference Figure 6 The bag surface 1 has a first side 11 arranged along the row direction and a second side 12 arranged along the column direction; the first side 11 of the bag surface 1 is connected to form a first sealing part 111; the second side 12 of the bag surface 1 is connected to form a second sealing part 121; the width ratio of the first sealing part 111 to the second sealing part 121 is between 0.8 and 1.2.

[0051] Reference Figure 6 , Figure 7 In one embodiment of this disclosure, the recessed portion 2 includes a first straight section 211, a second straight section 212, and a connecting section 213; wherein, the first straight section 211 and the second straight section 212 are perpendicular to the second side 12, and there is a certain distance between the first straight section 211 and the second straight section 212. This distance can determine the volume of the air outlet channel, and the volume of the air outlet channel determines the escape rate of gas in the food bag. This application does not impose specific limitations on this; the connecting section 213 is disposed on the side of the first straight section 211 and the second straight section 212 away from the second side 12.

[0052] Optionally, the connecting segment 213 can be straight or curved (for example, the first straight segment 211, the second straight segment 212, and the connecting segment 213 are U-shaped). In this embodiment, the connecting segment 213 is preferably curved, which facilitates the processing and manufacturing of food bag molds. On the other hand, the curved design of the connecting segment 213 can improve the sealing effect of the food bag.

[0053] Reference Figure 1A third sealing portion 21 is formed at the connection point of the recessed portion 2 of the oppositely connected bag surface 1; the third sealing portion 21 is connected to the second sealing portion 121, and the width of the third sealing portion 21 is smaller than that of the second sealing portion 121. Specifically, the width ratio of the third sealing portion 21 to the second sealing portion 121 is between 0.2 and 0.3. This arrangement results in a significant difference in width between the third sealing portion 21 and the second sealing portion 121. Thus, during the processing of the food bag, the third sealing portion 21 loses its sealing effect first, allowing the gas inside the food bag to be sent to the outside through the venting channel, thereby reducing the pressure in the food bag and preventing it from exploding.

[0054] Reference Figure 6 The first sealing part 111 and the second sealing part 121 are provided with friction parts 3. By providing friction parts 3 on the first sealing part 111 and the second sealing part 121, on the one hand, the friction between the consumer and the food bag can be increased, improving the stability when the consumer takes out the food; on the other hand, the connection strength between the bag surfaces 1 can be increased, thereby improving the sealing effect of the food bag.

[0055] Secondly, the food bag manufacturing apparatus provided in this application adopts the following technical solution:

[0056] Reference Figure 1 , Figure 2 The manufacturing apparatus includes a processing platform 4, a heat-sealing assembly 5, and a lifting assembly 6. The heat-sealing assembly 5 includes two heat-sealing plates 51. Each heat-sealing plate 51 has a protrusion 513, a heat source 511, and an electrostatic part 512. The protrusion 513 is configured to cooperate with the recess 2. It can be understood that the recess 2 can be processed by the pressing action of the protrusion 513. The heat source 511 is used to heat-treat the bag surface 1 (the process of sealing the food bag by heating is known to those skilled in the art, and this disclosure will not elaborate on this structure). (described); the electrostatic part 512 is used to adsorb the bag surface 1 (the adsorption of the bag surface 1 by the electrostatic part 512 is known to those skilled in the art, and this disclosure will not elaborate on this structure); a heat-sealing plate 51 is detachably fixed to the processing platform 4 by bolts; the lifting assembly 6 is installed on the processing platform 4, and another heat-sealing plate 51 is connected to the lifting assembly 6, wherein the two heat-sealing plates 51 form a heat-sealing space for the food bag; the lifting assembly 6 is used to drive the upper heat-sealing plate 51 closer to the heat-sealing plate 51 located on the processing platform 4.

[0057] Reference Figure 2The lifting assembly 6 includes a lifting rod 61, a lifting screw 62, and a lifting motor 63. The lifting rod 61 is mounted on the processing platform 4, wherein the axial direction of the lifting rod 61 is the same as the movement direction of the heat sealing plate 51. The lifting screw 62 is rotatably connected to the lifting rod 61, and the axial direction of the lifting screw 62 is the same as the axial direction of the lifting rod 61. The heat sealing plate 51 located above is threadedly connected to the lifting screw 62, and the heat sealing plate 51 and the lifting rod 61 are slidably connected. The lifting motor 63 is mounted on the processing platform 4, and the output shaft of the lifting motor 63 is coaxially connected to the lifting screw 62. The lifting motor 63 is used to drive the lifting screw 62 to rotate.

[0058] Reference Figure 2 The manufacturing apparatus also includes an adhesive applicator 7; a lifting rod 61 is rotatably mounted on the processing platform 4; the adhesive applicator 7 is threadedly connected to the lifting screw 62, and the adhesive applicator 7 and the lifting rod 61 are slidably connected, with the adhesive applicator 7 and the heat-sealing plate 51 arranged symmetrically about the lifting rod 61. With this arrangement, when adhesive needs to be applied to the bag surface 1, rotating the lifting rod 61 causes the adhesive applicator 7 and the heat-sealing plate 51 to rotate. When the heat-sealing plate 51 moves to the heat-sealing plate 51 mounted on the processing platform 4, the heat-sealing process of the bag surface 1 can be achieved; when the adhesive applicator 7 moves to the heat-sealing plate 51 mounted on the processing platform 4, the adhesive application process of the bag surface 1 can be achieved.

[0059] Furthermore, in some embodiments of this disclosure, the processing platform 4 is provided with multiple heat-sealing plates 51, which are symmetrically arranged about the lifting rod 61. In this way, the heat-sealing operation of the bag surface 1 can be performed on one side to complete the processing of the food bag, and the glue application operation of the bag surface 1 can be performed on the other side. The operator only needs to place the bag surface 1 on the heat-sealing plate 51 located on the working platform and the heat-sealing plate 51 connected to the lifting assembly 6 to realize uninterrupted processing of the food bag and improve the processing efficiency of the food bag.

[0060] Reference Figure 3 , Figure 4 , Figure 5 The manufacturing apparatus also includes a rotating assembly 8 for driving the lifting rod 61 to rotate; the rotating assembly 8 includes a rotating motor 81, a driving gear 82, and a driven gear 83; the driven gear 83 is fixed to the lifting rod 61 by a key connection; the rotating motor 81 is fixed to the processing platform 4, and the driving gear 82 is fixed to the output shaft of the rotating motor 81 by a key connection. The driving gear 82 meshes with the driven gear 83, and the rotating motor 81 is used to drive the driving gear 82 to rotate.

[0061] Thirdly, this application provides a method for manufacturing a food bag manufacturing apparatus.

[0062] A method for manufacturing a food bag manufacturing apparatus includes the following manufacturing steps:

[0063] Place a bag face 1 on the heat sealing plate 51 on the processing platform 4, turn on the electrostatic unit 512, and the electrostatic unit 512 will adsorb and set the bag face 1 on the heat sealing plate 51.

[0064] Another bag surface 1 is placed on the heat-sealing plate 51 located above. The electrostatic part 512 is turned on, and the electrostatic part 512 adsorbs and sets the bag surface 1 on the heat-sealing plate 51 located above.

[0065] Turn on the rotating assembly 8, and the rotating motor 81 will rotate. The rotating motor 81 will drive the drive gear 82 to rotate, and the drive gear 82 will drive the driven gear 83 to rotate. The driven gear 83 will drive the lifting rod 61 to rotate, and the rotation of the lifting rod 61 will drive the adhesive application plate 7 and the heat sealing plate 51 to rotate. When the adhesive application plate 7 is directly above the heat sealing plate 51 on the processing platform 4, turn on the lifting assembly 6, and the lifting motor 63 will drive the lifting screw 62 to rotate. The lifting screw 62 will drive the adhesive application plate 7 to move. The adhesive application plate 7 will approach the heat sealing plate 51 below and perform adhesive application on the bag surface 1 on the heat sealing plate 51 below.

[0066] When the rotating assembly 8 is activated, the rotating motor 81 rotates, which in turn drives the drive gear 82 to rotate. The drive gear 82 then drives the driven gear 83 to rotate, which in turn drives the lifting rod 61 to rotate. The rotation of the lifting rod 61 drives the adhesive application plate 7 and the heat sealing plate 51 to rotate. When the upper heat sealing plate 51 is directly above the heat sealing plate 51 on the processing platform 4, the lifting assembly 6 is activated, and the lifting motor 63 rotates. The lifting motor 63 then drives the lifting screw 62 to rotate, which in turn drives the upper heat sealing plate 51 to move closer to the lower heat sealing plate 51, thus performing a heat sealing operation on the bag surface 1 on the lower heat sealing plate 51, thereby processing the food bag.

[0067] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A food bag manufacturing apparatus, the food bag comprising: Includes at least two bag faces (1); The bag surfaces (1) are connected to each other to form a receiving cavity; The bag surface (1) is provided with a recess (2), wherein the recesses (2) on the bag surfaces (1) connected opposite to each other form an air outlet channel, which is connected to the outside; the bag surface (1) has a first side (11) arranged along the row direction and a second side (12) arranged along the column direction; the first side (11) of the bag surfaces (1) connected opposite to each other forms a first sealing part (111); the second side (12) of the bag surfaces (1) connected opposite to each other forms a second sealing part (12). 1) The width ratio of the first sealing portion (111) to the second sealing portion (121) is between 0.8 and 1.2; a third sealing portion (21) is formed at the connection of the recessed portion (2) of the oppositely connected bag surface (1); the third sealing portion (21) is connected to the second sealing portion (121), and the width of the third sealing portion (21) is smaller than that of the second sealing portion (121); the width ratio of the third sealing portion (21) to the second sealing portion (121) is between 0.2 and 0.

3. The first sealing part (111) and the second sealing part (121) have friction parts (3); the manufacturing device includes a processing platform (4), a heat sealing assembly (5) and a lifting assembly (6); the heat sealing assembly (5) includes two heat sealing plates (51); the heat sealing plate (51) has a protrusion (513), a heat source part (511) and an electrostatic part (512), the protrusion (513) and the recess (2) are configured to cooperate; the heat source part (511) is used for the bag The surface (1) is heated; the electrostatic part (512) is used to adsorb the bag surface (1); one of the heat-sealing plates (51) is disposed on the processing platform (4); the lifting assembly (6) is disposed on the processing platform (4), and the other heat-sealing plate (51) is connected to the lifting assembly (6), wherein the two heat-sealing plates (51) form a heat-sealing space for the food bag; the lifting assembly (6) is used to drive the upper heat-sealing plate (51) to approach the heat-sealing plate (51) located on the processing platform (4); The lifting assembly (6) includes a lifting rod (61), a lifting screw (62), and a lifting motor (63); the lifting rod (61) is mounted on the processing platform (4); the lifting screw (62) is rotatably connected to the lifting rod (61), the axial direction of the lifting screw (62) is the same as the axial direction of the lifting rod (61), the heat sealing plate (51) located above is threadedly connected to the lifting screw (62) and slidably connected to the lifting rod (61); the lifting motor (63) is used to drive the lifting screw (62) to rotate; the manufacturing device also includes an adhesive applicator (7); the lifting rod (61) is rotatably mounted on the processing platform (4); the adhesive applicator (7) is threadedly connected to the lifting screw (62), the adhesive applicator (7) is slidably connected to the lifting rod (61), and the adhesive applicator (7) and the heat sealing plate (51) are symmetrically arranged about the axial direction of the lifting rod (61).

2. The food bag manufacturing apparatus according to claim 1, characterized in that: The manufacturing apparatus further includes a rotating assembly (8) for driving the lifting rod (61) to rotate; the rotating assembly (8) includes a rotating motor (81), a driving gear (82) and a driven gear (83); the driven gear (83) is disposed on the lifting rod (61); the rotating motor (81) is disposed on the processing platform (4), the driving gear (82) is disposed on the output shaft of the rotating motor (81), the driving gear (82) meshes with the driven gear (83), and the rotating motor (81) is used to drive the driving gear (82) to rotate.

3. A method for manufacturing a food bag manufacturing apparatus, the manufacturing apparatus comprising a processing platform (4), a heat sealing assembly (5), a lifting assembly (6), a glue-applying plate (7), and a rotating assembly (8); the heat sealing assembly (5) comprises two heat sealing plates (51); the heat sealing plate (51) has a protrusion (513), a heat source (511), and an electrostatic part (512), the protrusion (513) being configured to cooperate with a recess (2); the heat source (511) being used to heat the bag surface (1); the electrostatic part (512) being used to adsorb the bag surface (1); one of the heat sealing plates (51) is disposed on the processing platform (4); the lifting assembly (6) is disposed on the processing platform (4), and the other heat sealing plate (51) is connected to the lifting assembly (6), wherein, The two heat-sealing plates (51) form a heat-sealing space for the food bag; the lifting assembly (6) is used to drive the upper heat-sealing plate (51) closer to the heat-sealing plate (51) located on the processing platform (4); The lifting rod (61) is rotatably mounted on the processing platform (4); the adhesive application plate (7) is threadedly connected to the lifting screw (62), the adhesive application plate (7) is slidably connected to the lifting rod (61), and the adhesive application plate (7) and the heat sealing plate (51) are symmetrically arranged about the lifting rod (61) axially. The rotating assembly (8) includes a rotating motor (81), a driving gear (82), and a driven gear (83); the driven gear (83) is mounted on the lifting rod (61); the rotating motor (81) is mounted on the processing platform (4), the driving gear (82) is mounted on the output shaft of the rotating motor (81), the driving gear (82) meshes with the driven gear (83), and the rotating motor (81) drives the driving gear (82) to rotate; characterized in that: the manufacturing method includes: Place a bag face (1) onto the heat-sealing plate (51) on the processing platform (4) via the electrostatic part (512); Another bag face (1) is placed on the heat-sealing plate (51) located above via the electrostatic part (512); Adjust the rotating assembly (8), the adhesive applicator (7) is located directly above the heat sealing plate (51) on the processing platform (4), turn on the lifting assembly (6), the adhesive applicator (7) is close to the heat sealing plate (51) on the processing platform (4), and the adhesive applicator (7) performs adhesive applicator operation on the bag surface (1) placed on the heat sealing plate (51). Adjust the rotating assembly (8) so that the heat sealing plate (51) is directly above the heat sealing plate (51) on the processing platform (4). Turn on the lifting assembly (6) so that the lifting assembly (6) moves the heat sealing plate (51) above closer to the heat sealing plate (51) on the processing platform (4).

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