A sealing paper bag and a production process thereof

Abstract

The present application belongs to paper bag technical field, especially relate to a kind of sealing paper bag and its production process, including paper bag body, bag mouth and handle portion set up on paper bag body, handle portion includes handle mouth A set up in the both sides of paper bag body A, still include: first fold, connect on paper bag body upper end edge, first fold middle part is set up with handle mouth A corresponding handle mouth B;Second fold, connect in the middle part of handle mouth B inner side away from paper bag body for penetrating two handle mouth A makes two handle mouth A adhere;Hard paper sheet, is bonded on the both sides of paper bag body handle mouth A;Wherein, hard paper sheet middle part is set up with handle mouth A intercommunication opening.The beneficial effect of the present application is: effectively promote the firmness and sealing property of paper bag, bag mouth is not easy to tear damage, and bag mouth can be quickly closed and opened, convenient to use.

Description

Technical Field

[0001] This invention relates to the field of paper bag technology, and in particular to a production process for sealing paper bags. Background Technology

[0002] Paper bags are common items in daily life and are widely used in the food delivery industry. Most paper bags on the market are open-topped and are sealed before use. They also have handles for delivery personnel.

[0003] In existing technologies, paper bags are generally sealed with staples and tape, which provides low sealing and privacy. Furthermore, the opening of the paper bag is not very secure and is easily torn, making it difficult to grasp. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a sealing paper bag and its production process to solve the above problems.

[0005] The technical solution of the present invention is implemented as follows: A sealed paper bag includes a paper bag body, a bag opening, and a handle portion formed on the paper bag body. The handle portion includes handle openings A formed on both sides of the paper bag body A, and further includes:

[0006] The first fold is connected to the upper edge of the paper bag body, and a handle opening B corresponding to the handle opening A is opened in the middle of the first fold;

[0007] The second fold is connected to the middle of the side of the handle opening B away from the paper bag body, and is used to pass through the two handle openings A to make the two handle openings A fit together;

[0008] A piece of rigid paper is glued to the handle openings A on both sides of the paper bag body;

[0009] The rigid paper sheet has an opening in the middle that connects to the handle opening A. The first fold can be folded down along the connection with the paper bag body to close the bag opening. When the bag opening is closed, the second fold can be folded down along the connection with the first fold and pass through the two handle openings A to close the handle.

[0010] Furthermore, the first flap is integrally formed with the paper bag body. The first flap has a tear strip formed by several dot-shaped holes on one side adjacent to the paper bag body. A semi-circular handle protruding from the first flap is provided on one edge of the tear strip. An adhesive area A is provided on the side of the first flap away from the tear strip. The length direction of adhesive area A is parallel to the length direction of the first flap. Adhesive areas B are provided on both sides of the handle opening B, parallel to adhesive area A. An adhesive area C is provided on the second flap. Adhesive area C is positioned opposite to the extension line of the length direction of the two adhesive areas B. Double-sided adhesive strips are adhered to adhesive areas A, B, and C. A rigid cardboard is adhered to the bottom of the paper bag body.

[0011] Furthermore, a manufacturing process for a sealing paper bag includes the following steps:

[0012] Step 1: Take the paper to be processed and feed it into the printing press for paper printing.

[0013] Step 2: Feed the printed paper into the paper bonding device to bond the rigid paper sheets.

[0014] Step 3: Apply double-sided adhesive strips to the paper obtained in Step 2 using the adhesive strip bonding device on bonding areas A, B, and C.

[0015] Step 4: After the bonding in Step 2 is completed, the paper is fed into the die-cutting device by the conveyor belt for die-cutting and creasing, so that the paper forms a folded edge, handle A, and a first fold with handle B and a second fold.

[0016] Step 5: Feed the paper obtained in Step 3 into the folding machine, apply glue, and fold to form a sealed paper bag;

[0017] Step 6: Inspection, bagging, and warehousing.

[0018] Furthermore, the paper bonding device includes:

[0019] Workbench;

[0020] Conveyor belt A is fixedly installed on the upper part of the workbench for conveying the paper to be processed;

[0021] The traction roller is fixedly installed on the workbench and adjacent to the input end of the conveyor belt A;

[0022] Conveyor belt B is fixedly installed on the upper part of the workbench for conveying rigid paper sheets;

[0023] The paper gripping mechanism, located above conveyor belts A and B, is used to transfer rigid paper sheets from conveyor belt A to the paper to be processed on conveyor belt A.

[0024] Furthermore, the paper gripping mechanism includes:

[0025] Support frame;

[0026] The fixing plate is located inside the support frame;

[0027] Two sliders are provided, which are slidably connected to the lower end of the fixed plate. The two sliders are spaced apart along the length of the worktable.

[0028] Cylinder A is fixedly installed on one side of the lower end of the slider, and an opening communicating with the interior of cylinder A is provided at the lower end of cylinder A;

[0029] The slide rod is slidably connected inside cylinder A;

[0030] The spring is fixedly installed inside the upper end of cylinder A;

[0031] The adsorption plate is fixedly installed at the lower end of the slide bar;

[0032] A miniature air pump is fixedly installed on the upper part of a fixed plate, and an air extraction pipe is fixedly installed on the miniature air pump, which penetrates the cylinder A and communicates with the inside of the cylinder A.

[0033] The slider can slide along the width of the worktable at the bottom of the fixed plate. The support frame is in the shape of a "door". An electric push rod A is fixedly connected to the upper inner side of the support frame. The movable end of the electric push rod A is fixedly connected to the upper end of the fixed plate. The lower two sides of the support frame are fixed to the upper end of the worktable by bolts. Several locking blocks are integrally formed on the outer side of the slide rod along the length of the slide rod. The inner wall of the cylinder A has a locking groove that matches the locking blocks. The end of the spring away from the slider abuts against the upper end face of the slide rod. The upper end of the slide rod has a guide hole that penetrates the lower end of the adsorption plate.

[0034] Furthermore, cylinder A also includes:

[0035] A semi-annular block is slidably connected to one edge of the lower end of cylinder A;

[0036] An electromagnet is embedded within a semi-ring block;

[0037] Rubber blocks are adhered to the side of the semi-ring block facing the slide bar.

[0038] The inner side of the card block is embedded with an iron block arranged along the length of the card block. When the electromagnet is energized, the rubber block abuts against the card block.

[0039] Furthermore, the paper gripping mechanism also includes:

[0040] Cylinder B is embedded on the lower end face of the slider and is located to the left of cylinder A. A sealing cover plate is connected to the lower end of cylinder B by thread.

[0041] The sliding plug is slidably connected inside the cylinder B;

[0042] The stopper rod is fixedly installed in the middle of the lower end of the slide plug. The lower end of the stopper rod extends downward through the sealing cover plate and is hinged to a connecting rod.

[0043] The swing rod is hinged to the lower end face of the slider and is located between the stopper rod and the cylinder A;

[0044] The rotating wheel is fixedly installed at the lower end of the swing arm;

[0045] The receiving cavity is located inside the swing rod;

[0046] The connecting rod is hinged to the lower edge of the swing rod at one end, and a gas guide tube is fixedly connected between the upper edge of the inner side of the cylinder B and the swing rod to connect the receiving cavity with the cylinder B. A nozzle that communicates with the receiving cavity is embedded on the outer side of the lower end of the swing rod facing the adsorption plate.

[0047] Furthermore, the swing arm also includes:

[0048] The limiting component is L-shaped and includes an integrally formed vertical part and a horizontal part. The horizontal part is fixedly installed on the side of the upper end of the swing rod facing the cylinder A.

[0049] The angle between the horizontal part and the swing arm is acute. In the initial state, the horizontal part is parallel to the slider, and the vertical part abuts against the lower end face of the slider.

[0050] Furthermore, the paper gripping mechanism also includes:

[0051] Two electric push rods B are provided. The two electric push rods B are fixedly installed at the lower end of the fixed plate to push the slider to reciprocate along the length of the fixed plate.

[0052] Electric push rod C is fixedly installed inside the support frame on the side facing the conveyor belt A, and the length direction of electric push rod C is parallel to the length direction of the fixed plate;

[0053] The rubber roller bracket, in the shape of a "U", is fixedly installed on the output shaft of the electric push rod C;

[0054] The glue trough is fixedly installed at the lower end of the glue roller bracket;

[0055] Among them, the electric push rod B corresponds one-to-one with the slider, the glue roller corresponding to the glue tank is fixedly installed on the glue roller bracket, and a micro motor for driving the glue roller bracket is also fixedly installed on the outer side of the glue roller bracket.

[0056] Furthermore, it also includes:

[0057] Support plate A is fixedly installed on one side of the upper end of conveyor belt B and located below the support frame;

[0058] Support plate B is fixedly installed on one side of the upper end of conveyor belt A and located below the support frame;

[0059] The upper end of the support plate A is provided with a groove that cooperates with the rotating wheel.

[0060] By adopting the above technical solution, the roller will not directly contact the conveyor belt and the paper to be processed, thus preventing the roller from pressing on the paper to be processed and causing indentations, and preventing the roller from pressing on the conveyor belt B and causing the rigid paper to shift.

[0061] The beneficial effects of this invention are as follows:

[0062] 1. Effectively improves the strength and sealing of paper bags, making the bag opening less prone to tearing and damage, and allowing for quick sealing and opening, making it convenient to use;

[0063] 2. The forming process of paper bags is convenient and easy to implement, which is conducive to the large-scale mass production of paper bags. Attached Figure Description

[0064] 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.

[0065] Figure 1 This is a schematic diagram of the structure for pasting rigid cardboard onto the paper to be processed, according to a specific embodiment of the present invention.

[0066] Figure 2 This is a schematic diagram of the structure of the paper after it has been cut according to a specific embodiment of the present invention;

[0067] Figure 3 This is a schematic diagram of the paper bag structure after molding, according to a specific embodiment of the present invention;

[0068] Figure 4 This is a schematic diagram of the paper bonding device according to a specific embodiment of the present invention. Detailed Implementation

[0069] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0070] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0071] Example 1:

[0072] like Figures 1 to 4 As shown, the present invention discloses a sealing paper bag, including a paper bag body 1, a bag opening, and a handle portion formed on the paper bag body 1. The handle portion includes handle openings A2 formed on both sides of the paper bag body A, and further includes:

[0073] The first fold 3 is connected to the upper edge of the paper bag body 1, and the first fold 3 has a handle opening B4 in the middle that corresponds to the handle opening A2;

[0074] The second fold 41 is connected to the middle of the side of the handle opening B4 away from the paper bag body 1, and is used to pass through the two handle openings A to make the two handle openings A2 fit together.

[0075] A piece of rigid paper 5 is glued to the handle openings A2 on both sides inside the paper bag body 1;

[0076] The rigid paper sheet 5 has an opening in the middle that communicates with the handle opening A2. The first fold 3 can be folded down along the connection with the paper bag body 1 to close the bag opening. When the bag opening is closed, the second fold 41 can be folded down along the connection with the first fold 3 and pass through the two handle openings A2 to close the handle.

[0077] By adopting the above technical solutions, the strength and sealing of paper bags are effectively improved, the bag opening is not easily torn or damaged, and the bag opening can be quickly closed and opened, making it convenient to use.

[0078] Example 2:

[0079] This embodiment provides a sealing paper bag, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0080] Furthermore, the first fold 3 is integrally formed with the paper bag body 1. The first fold 3 has a tear strip formed by several dot-shaped holes on one side adjacent to the paper bag body 1. A semi-circular handle protruding from the first fold 3 is provided on one edge of the tear strip. An adhesive area A is provided on the side of the first fold 3 away from the tear strip. The length direction of the adhesive area A is parallel to the length direction of the first fold. Adhesive areas B are provided on both sides of the handle opening B4, parallel to the adhesive area A. An adhesive area C is provided on the second fold 41. The adhesive area C is arranged opposite to the extension line of the length direction of the two adhesive areas B. Double-sided adhesive strips are glued to the adhesive areas A, B and C. A rigid cardboard is glued to the bottom of the inner side of the paper bag body 1.

[0081] By adopting the above technical solution, users of paper bags can choose according to their actual needs. If the paper bags are to be repackaged, they can choose to tear open the double-sided adhesive strip of one area, either adhesive area A or adhesive area B, and then tear open the double-sided adhesive strip of adhesive area C to seal the bag opening. When reusing the paper bags, they can tear open the adhesive strip of the other area. If they are not to be reused, they can tear open the adhesive strip of all areas for bonding. The connection is firm, and the tear-out makes it easy to open the bag opening. The sealing ensures that the paper bag is firmly connected after it is sealed. The rigid cardboard setting further increases the carrying capacity of the paper bags. The setting of adhesive area C on the extension line of the length direction of adhesive area B allows the double-sided adhesive strip to be bonded first and then the handle hole to be punched during the production of paper bags, which improves production efficiency.

[0082] In addition, in this embodiment, the paper bag can be covered with a waterproof and oil-proof inner lining layer according to actual needs to further improve the paper bag's load-bearing capacity.

[0083] Example 3:

[0084] This embodiment provides a manufacturing process for sealing paper bags, including the following steps:

[0085] Step 1: Take the paper to be processed and feed it into the printing press for paper printing.

[0086] Step 2: Feed the printed paper into the paper bonding device to bond the rigid paper sheets.

[0087] Step 3: Apply double-sided adhesive strips to the paper obtained in Step 2 using the adhesive strip bonding device on bonding areas A, B, and C.

[0088] Step 4: After the bonding in Step 2 is completed, the paper is fed into the die-cutting device by the conveyor belt for die-cutting and creasing, so that the paper forms a folded edge, handle A, and a first fold with handle B and a second fold.

[0089] Step 5: Feed the paper obtained in Step 3 into the folding machine, apply glue, and fold to form a sealed paper bag;

[0090] Step 6: Inspection, bagging, and warehousing.

[0091] By adopting the above technical solution, the forming process of paper bags is convenient and easy to implement, which is conducive to the large-scale mass production of paper bags.

[0092] Example 4:

[0093] This embodiment provides a production process for sealing paper bags, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0094] Furthermore, the paper bonding device includes:

[0095] Workbench 6;

[0096] Conveyor belt A7 is fixedly installed on the upper end of workbench 6 for conveying paper to be processed;

[0097] The traction roller 8 is fixedly installed on the workbench 6 and adjacent to the input end of the conveyor belt A7;

[0098] Conveyor belt B9 is fixedly installed on the upper end of workbench 6 for conveying rigid paper sheets 5;

[0099] The paper gripping mechanism, located above conveyor belts A7 and B9, is used to transport the rigid paper sheet 5 on conveyor belt A7 to the paper to be processed on conveyor belt A7.

[0100] By adopting the above technical solution, the bonding of rigid paper sheets can be carried out quickly, which is more precise and efficient than manual bonding and avoids errors in bonding position from affecting subsequent cutting.

[0101] Example 5:

[0102] This embodiment provides a production process for sealing paper bags, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0103] Furthermore, the paper gripping mechanism includes:

[0104] Support frame 10;

[0105] The fixing plate 11 is located inside the support frame 10;

[0106] Two sliders 12 are provided, and the two sliders 12 are slidably connected to the lower end of the fixed plate 11. The two sliders are spaced apart along the length of the worktable 6.

[0107] The cylinder A13 is fixedly installed on one side of the lower end of the slider 12, and the lower end of the cylinder A13 has an opening that communicates with the interior of the cylinder A13.

[0108] Slide rod 14 is slidably connected inside cylinder A13;

[0109] Spring 15 is fixedly installed inside the upper end of cylinder A13;

[0110] The adsorption plate 16 is fixedly installed at the lower end of the slide bar 14;

[0111] A miniature air pump is fixedly installed on the upper end of the fixed plate 11, and an air extraction pipe is fixedly installed on the miniature air pump, which penetrates the cylinder A13 and communicates with the inside of the cylinder A13.

[0112] The slider 12 can slide along the width of the workbench 6 at the lower end of the fixed plate 11. The support frame 10 is in the shape of a "door". An electric push rod A is fixedly connected to the upper inner side of the support frame 10. The movable end of the electric push rod A is fixedly connected to the upper end of the fixed plate 11. The lower two sides of the support frame 10 are fixed to the upper end of the workbench 6 by bolts. Several locking blocks are integrally formed on the outer side of the slide rod 14 along the length of the slide rod 14. The inner side wall of the cylinder A13 is provided with a locking groove that cooperates with the locking blocks. The end of the spring 15 away from the slider 12 abuts against the upper end of the slide rod 14. The upper end of the slide rod 14 is provided with an air guide hole that penetrates the lower end of the adsorption plate 16.

[0113] By adopting the above technical solution, a slider and an adsorption plate are used in conjunction with a micro air pump. The electric push rod A can grip the rigid paper sheet conveyed by the conveyor belt B, apply glue with the glue roller, and then convey it to the paper to be processed for pressing. The spring setting allows the adsorption plate to better adhere to the rigid paper sheet before gripping it. Then, the micro air pump is used to extract air, so that the adsorption plate can stably grip the rigid paper sheet.

[0114] Example 6:

[0115] This embodiment provides a production process for sealing paper bags, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0116] Furthermore, the cylinder A13 also includes:

[0117] Semi-ring block 17 is slidably connected to one edge of the lower end of cylinder A13;

[0118] An electromagnet is embedded in the semi-ring block 17;

[0119] The rubber block is adhered to the side of the semi-ring block facing the slide bar 14.

[0120] The inner side of the card block is embedded with an iron block arranged along the length of the card block. When the electromagnet is energized, the rubber block abuts against the card block.

[0121] By adopting the above technical solution, after the adsorption plate is attached to the rigid paper, the electromagnet is energized to make the plate ring block adsorb and press the clamping block, so that the adsorption plate is not easy to displace and has good stability after being lifted by the electric push rod A.

[0122] Example 7:

[0123] This embodiment provides a production process for sealing paper bags, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0124] Furthermore, the paper gripping mechanism also includes:

[0125] Cylinder B18 is embedded on the lower end face of slider 12 and located to the left of cylinder A13. A sealing cover plate is threadedly connected to the lower end of cylinder B18.

[0126] Sliding plug 19 is slidably connected inside cylinder B18;

[0127] The stopper rod 20 is fixedly installed at the lower middle part of the slide plug 19. The lower end of the stopper rod 20 extends downward through the sealing cover plate and is hinged to a connecting rod.

[0128] The swing rod 21 is hinged to the lower end face of the slider 12 and is located between the stopper rod 20 and the cylinder A13;

[0129] Rotary wheel 22 is fixedly installed at the lower end of swing arm 21;

[0130] The receiving cavity 23 is opened inside the swing rod 21;

[0131] The connecting rod is hinged to one side of the lower edge of the swing rod 21 at the end away from the plug rod 20. A gas guide tube for communicating the receiving cavity 23 with the cylinder B18 is fixedly connected between the upper edge of the inner side of the cylinder B18 and the swing rod 21. A nozzle communicating with the receiving cavity 23 is embedded on the side of the lower end of the swing rod 21 facing the adsorption plate 16.

[0132] By adopting the above technical solution, the electric push rod A can synchronously drive the swing rod to move downward. When the swing rod is unable to move downward due to the resistance of the conveyor belt, it can be rotated to fold to the left. Since the stop rod and the swing rod are connected by a connecting rod, when the swing rod folds to the left, it can push the sliding stopper to rise. The air in the cylinder B is squeezed into the receiving cavity and sprayed onto the surface of the hard paper through the nozzle to remove debris and impurities from the surface of the hard paperboard, so that the subsequent adsorption plate can adhere more tightly to the hard paper. After the adsorption plate finishes gripping the hard paper, the electric push rod A is reset and then pushed by the electric push rod B to move the hard paper to the top of the paper to be processed. After applying glue, it descends to adhere the hard paper to the paper. During the descent and adhesion process, the swing rod can synchronously descend and fold to the left after contacting the conveyor belt A, so that the nozzle sprays air to clean the surface of the paper to be processed, preventing the attached debris from affecting the adhesion effect between the hard paper and the paper to be processed.

[0133] Example 8:

[0134] This embodiment provides a production process for sealing paper bags, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0135] Furthermore, the swing arm 21 also includes:

[0136] The limiting component 24 is L-shaped and includes an integrally formed vertical part and a horizontal part. The horizontal part is fixedly installed on the side of the upper end of the swing rod 21 facing the cylinder A13.

[0137] The angle between the horizontal part and the swing rod 21 is an acute angle. In the initial state, the horizontal part is parallel to the slider 12, and the vertical part abuts against the lower end face of the slider 12.

[0138] By adopting the above technical solution, the swing arm can be kept in an inclined state when it does not move, thus guiding the swing direction of the swing arm and preventing it from swinging to the right and colliding with the adsorption plate.

[0139] Example 9:

[0140] This embodiment provides a production process for sealing paper bags, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0141] Furthermore, the paper gripping mechanism also includes:

[0142] Two electric push rods B are provided. The two electric push rods B are fixedly installed at the lower end of the fixed plate 11 to push the slider 12 to reciprocate along the length of the fixed plate 11.

[0143] Electric push rod C is fixedly installed inside the support frame 10 on the side facing the conveyor belt A7, and the length direction of electric push rod C is parallel to the length direction of fixed plate 11;

[0144] The rubber roller bracket, in the shape of a "U", is fixedly installed on the output shaft of the electric push rod C;

[0145] The glue trough is fixedly installed at the lower end of the glue roller bracket;

[0146] Among them, the electric push rod B corresponds one-to-one with the slider 12, the glue roller corresponding to the glue tank is fixedly installed on the glue roller bracket, and a micro motor for driving the glue roller bracket is also fixedly installed on the outer side of the glue roller bracket.

[0147] By adopting the above technical solution, the electric push rod B can push the slider to slide back and forth above the two conveyor belts, and cooperate with the electric push rod A to pick up and put out materials. After the slider moves above the conveyor belt A, the electric push rod A extends and cooperates with the micro motor to make the glue roller apply glue to the lower end face of the rigid paper.

[0148] Example 10:

[0149] This embodiment provides a production process for sealing paper bags, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0150] Furthermore, it also includes:

[0151] Support plate A25 is fixedly installed on one side of the upper end of conveyor belt B9 and located below support frame 10;

[0152] Support plate B26 is fixedly installed on one side of the upper end of conveyor belt A7 and located below support frame 10;

[0153] The upper end of the support plate A25 is provided with a groove that cooperates with the rotating wheel 22.

[0154] By adopting the above technical solution, the roller will not directly contact the conveyor belt and the paper to be processed, thus preventing the roller from pressing on the paper to be processed and causing indentations, and preventing the roller from pressing on the conveyor belt B and causing the rigid paper to shift.

[0155] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A production process of a sealed paper bag, the sealed paper bag comprising a paper bag body (1), a bag opening, and a handle portion provided on the paper bag body (1), the handle portion comprising handle openings A (2) provided on both sides of the paper bag body (1), characterized in that, Also include: The first fold (3) is connected to the paper bag body (1) upper edge, the first fold (3) middle part is provided with the handle hole B (4) corresponding to the handle hole A (2); Second fold (41) is connected to the handle hole B (4) in the middle of the side away from the paper bag body (1) for penetrating two handle hole A (2) to make two handle hole A (2) fit; Hard paper sheet (5) is bonded to both sides of the handle hole A (2) in the paper bag body (1); Wherein, the middle part of the hard paper sheet (5) is provided with an opening communicated with the handle hole A (2), the first fold (3) can be folded downward along the connection with the paper bag body (1) to close the bag opening, when the bag opening is closed, the second fold (41) can be folded downward along the connection with the first fold (3) to penetrate the two handle hole A (2) and close the handle part; The first fold (3) is integrally formed with the paper bag body (1), the first fold (3) adjacent to one side of the paper bag body (1) is provided with a tear strip formed by a plurality of point holes, one side edge of the tear strip is provided with a convex first fold (3) setting half arc handle, the side of the first fold (3) away from the tear strip is provided with a bonding area A, the length direction of the bonding area A is parallel to the length direction of the first fold, the edge of the handle hole B (4) is provided with a bonding area B parallel to the bonding area A, the second fold (41) is provided with a bonding area C, the bonding area C is oppositely arranged on the extension line of the length direction of the two bonding areas B, the bonding area A, the bonding area B and the bonding area C are bonded with double-sided adhesive tape, the bottom of the paper bag body (1) is bonded with a hard paper board; The production process of the sealed paper bag, comprising the following steps: Step one, take the paper to be processed, the paper is sent into the printing machine in sequence to print the paper surface; Step two, the printed paper is sent into the paper sheet bonding device to bond the hard paper sheet (5); Step three, the paper obtained in step two is bonded with double-sided adhesive tape on the bonding area A, the bonding area B and the bonding area C through the adhesive tape bonding device; Step four, after the bonding of step two is completed, the paper is sent into the die cutting device through the conveying belt to die cut the indentation, so that the paper forms the folding edge, the handle hole A (2) and the first fold (3) with the handle hole B (4) and the second fold (41); Step five, the paper obtained in step three is sent into the folding machine to glue and fold to form the sealed paper bag; Step six, inspection, bagging and warehousing; The paper sheet bonding device comprises a workbench (6); Conveying belt A (7) is fixedly installed on the upper end of the workbench (6) for conveying the paper to be processed; The traction roller (8) is fixedly installed on the workbench (6) and adjacent to the input end of the conveying belt A (7); Conveying belt B (9) is fixedly installed on the upper end of the workbench (6) for conveying the hard paper sheet (5); The paper sheet grabbing mechanism is located above the conveying belt A (7) and the conveying belt B (9) for conveying the hard paper sheet (5) on the conveying belt A (7) to the paper to be processed on the conveying belt A (7); The paper sheet grabbing mechanism comprises a support frame (10); The fixed plate (11) is located on the inner side of the support frame (10); The slider (12) is provided with two blocks, and the two blocks are slidingly connected to the lower end of the fixed plate (11) and are arranged at intervals along the length direction of the workbench (6); The cylinder A (13) is fixedly installed on one side of the lower end of the slider (12), and the lower end of the cylinder A (13) is provided with an opening in communication with the inside of the cylinder A (13); The sliding rod (14) is slidingly connected in the cylinder A (13); The spring (15) is fixedly installed in the upper end of the cylinder A (13); The adsorption disc (16) is fixedly installed on the lower end of the sliding rod (14); The micro air pump is fixedly installed on the upper end of the fixed plate (11), and the micro air pump is fixedly installed with an air suction pipe penetrating through the cylinder A (13) and in communication with the inside of the cylinder A (13); The slider (12) can slide along the width direction of the workbench (6) at the lower end of the fixed plate (11), the support frame (10) is in the shape of "door", the inner side of the support frame (10) is fixedly connected with the electric push rod A at the upper end, the movable end of the electric push rod A is fixedly connected to the upper end of the fixed plate (11), the lower end of the support frame (10) is connected with the upper end of the workbench (6) through bolts on both sides, the outer side of the sliding rod (14) is integrally formed with a plurality of clamping blocks arranged along the length direction of the sliding rod (14), the inner side wall of the cylinder A (13) is provided with a clamping groove matched with the clamping block, the end of the spring (15) away from the slider (12) is abutted against the upper end surface of the sliding rod (14), and the upper end of the sliding rod (14) is provided with a gas guide hole penetrating through the lower end of the adsorption disc (16); The cylinder A (13) further comprises a semi-ring block (17) slidingly connected to the lower end of the cylinder A (13) on one side edge; The electromagnet is embedded in the semi-ring block (17); The rubber block is adhered to one side of the semi-ring block facing the sliding rod (14); The inner side of the clamping block is embedded with an iron block arranged along the length direction of the clamping block, and when the electromagnet is powered on, the rubber block is abutted on the clamping block; The paper sheet grabbing mechanism further comprises: The cylinder B (18) is embedded on the lower end surface of the slider (12) and located on the left side of the cylinder A (13), and the lower end of the cylinder B (18) is threadedly connected with a sealing cover plate; The sliding plug (19) is slidingly connected in the cylinder B (18); The plug rod (20) is fixedly installed on the lower end of the sliding plug (19), and the lower end of the plug rod (20) extends downwardly through the sealing cover plate and is hingedly connected with a connecting rod; The swing rod (21) is hingedly connected to the lower end surface of the slider (12) and located between the plug rod (20) and the cylinder A (13); The rotating wheel (22) is fixedly installed on the lower end of the swing rod (21); The accommodating cavity (23) is provided in the swing rod (21); The end of the connecting rod away from the plug rod (20) is hingedly connected to one side of the lower end edge of the swing rod (21), a gas guide pipe for making the accommodating cavity (23) communicate with the cylinder B (18) is fixedly connected between the upper end edge of the inner side of the cylinder B (18) and the swing rod (21), and the side of the lower end of the swing rod (21) facing the adsorption disc (16) is embedded with a nozzle in communication with the accommodating cavity (23).

2. A process for producing a sealed paper bag according to claim 1, characterized in that, The swing rod (21) further comprises: The limiting member (24) is in the shape of "L" and comprises an integral vertical part and a horizontal part. The horizontal part is fixedly installed on the outer side of the upper end of the swing rod (21) facing the cylinder A (13); The horizontal part and the swing rod (21) form an acute angle, and in the initial state, the horizontal part is parallel to the sliding block (12), and the vertical part abuts against the lower end surface of the sliding block (12).

3. A process for producing a sealed paper bag according to claim 1, characterized in that, The paper sheet grabbing mechanism further comprises: Two electric push rods B are fixedly installed on the lower end of the fixed plate (11) for pushing the sliding block (12) to reciprocate in the length direction of the fixed plate (11); An electric push rod C is fixedly installed on the side of the support frame (10) facing the conveying belt A (7), and the length direction of the electric push rod C is parallel to the length direction of the fixed plate (11); A rubber roller support in the shape of "U" is fixedly installed on the output shaft of the electric push rod C; A rubber groove is fixedly installed on the lower end of the rubber roller support; The electric push rod B corresponds to the sliding block (12) one by one, the rubber roller support is fixedly installed with a rubber coating roller corresponding to the rubber groove, and a micro motor for driving the rubber coating roller is further fixedly installed on the outer side of the rubber roller support.

4. A process for producing a sealed paper bag according to claim 1, characterized in that, Further comprising: A support plate A (25) is fixedly installed on one side of the upper end of the conveying belt B (9) and located below the support frame (10); A support plate B (26) is fixedly installed on one side of the upper end of the conveying belt A (7) and located below the support frame (10); The upper end of the support plate A (25) is provided with a sliding groove matched with the rotating wheel (22).

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