Automatic folding and packaging mechanism of paper bag machine and control method of automatic folding and packaging mechanism

Abstract

The invention discloses an automatic folding and packaging mechanism of a paper bag machine and a control method thereof, and belongs to the technical field of paper bag packaging. The packaging mechanism comprises a base, and the base comprises a guide seat, an upper base, a vertical proofreading plate, a supporting plate and a sliding table; the folding assembly comprises a locking plate, an upper rotating folding plate, a lower rotating folding plate, a first pushing folding plate, an abutting plate, a front rotating abutting plate and a second pushing folding plate; the power assembly comprises an air cylinder and a swing arm driving motor; and a gluing assembly. According to the automatic folding and packaging mechanism of the paper bag machine, the power assembly drives the folding assembly to conduct gluing, full-automatic folding and packaging are achieved through an automatic control program, manual intervention is remarkably reduced, the paper bag packaging efficiency is improved, in addition, in the control method, a front rotating abutting plate is arranged to ensure the stability of the gluing process, the packaging quality is improved, and the production cost is reduced. The appearance and functionality of the paper bag are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of paper bag packaging, and in particular to an automatic folding and sealing mechanism for a paper bag machine and a control method thereof. Background Art

[0002] In the modern packaging and logistics industry, paper bags are widely used as a widely used environmentally friendly packaging material. With the rapid development of e-commerce and logistics distribution, the production and subsequent processing of paper bags are facing increasing challenges, especially the increasing demand for automation in palletizing, packaging and sealing.

[0003] After production, paper bags often need to go through the process of packaging and sealing for storage and transportation. However, due to their light weight and softness, the stacked paper bags are very easy to disperse and tilt, resulting in instability during the packaging process. This characteristic makes it difficult for traditional manual or semi-automatic methods to effectively handle the packaging needs of paper bags, and it is easy to cause damage and waste of paper bags. In addition, manual operation is prone to problems such as uneven stacking of paper bags and loose sealing, which affects subsequent logistics processing and product quality. In addition, for stacked paper bags, existing balers usually use a fixed rotation method for packaging. This design is not effective when handling loose paper bag stacks and cannot ensure the integrity and stability of the packaging.

[0004] Therefore, there is an urgent need for a new type of automatic packaging and sealing mechanism that can efficiently and accurately process the stacked paper bags, reduce manual intervention, improve the automation level of the production line, and ensure the firmness of the seal and the neatness of the appearance during the packaging process. To this end, we propose an automatic folding and sealing mechanism for a paper bag machine and its control method. Summary of the invention

[0005] The object of the present invention is to provide an automatic folding and sealing mechanism for a paper bag machine and a control method thereof, so as to solve the problems of slow production speed, poor stability of paper bag stacks and poor sealing quality caused by the existing paper bag machines relying on manual or semi-automatic methods.

[0006] In order to solve the above technical problems, the present invention provides an automatic folding and sealing mechanism for a paper bag machine and a control method thereof, comprising a base, wherein the base comprises a guide seat, an upper base arranged above the guide seat, vertical alignment plates arranged on both sides of the guide seat, a support plate arranged on one side of the guide seat, and a slide arranged on one side of the support plate; A folding assembly, the folding assembly comprising a locking plate arranged at one end of the guide seat, an upper rotating folding plate arranged below the upper base, lower rotating folding plates arranged at both sides of the guide seat, a first push-to-fold plate arranged at one side of the vertical alignment plate, abutment plates arranged at one side of the upper rotating folding plate and the lower rotating folding plate, a front rotating abutment plate arranged at one side of the support plate, and second push-to-folding plates arranged at both sides of the slide; A power assembly, the power assembly comprising a first cylinder disposed in the guide seat, a second cylinder disposed on one side of the vertical calibration plate, a pair of third cylinders disposed on both sides of the slide, and a plurality of swing arm drive motors; The gluing component includes a first gluing member arranged on one side of the locking plate, and a second gluing member arranged on the outer side of the vertical alignment plate.

[0007] Preferably, the guide seat comprises a guide plate, and the first cylinder is fixedly mounted on the bottom of the guide plate.

[0008] Preferably, the locking plate is driven by a first cylinder so that it can be folded 90 degrees along the plane of the guide plate.

[0009] Preferably, the upper rotary folding plate and the lower rotary folding plate are driven by swing arm drive motors arranged on their respective sides, so that they can swing horizontally by 90 degrees along the parallel plane between the upper base and the guide seat.

[0010] Preferably, the first push-to-close folding plate is connected to one side of the second cylinder and is driven by the second cylinder so that it can slide along the second cylinder track; The first push-to-fold plates are a pair, and an angle of 85 to 90 degrees is formed between the pushing planes of the two first push-to-fold plates. When the first push-to-fold plates on both sides slide synchronously, the paper bag package can be clamped from both sides.

[0011] Preferably, there are four abutment plates arranged in two pairs, one above the other, and driven by a swing arm drive motor disposed on one side of each abutment plate so as to be able to perform a 90-degree vertical swing along a direction parallel to the plane of the vertical alignment plate.

[0012] Preferably, the front rotating abutment plate is driven by a swing arm drive motor arranged on one side thereof, and swings along with the swing of the locking plate, clamping and positioning the front end of the paper bag between the locking plate and the abutment plate, so as to provide abutment support for the paper bag during gluing.

[0013] Preferably, the second push-to-close folding plate is driven by a third cylinder so that it can slide along the track direction of the third cylinder. The track direction is inclined, and an opening of 5 to 10 degrees is formed between the two third cylinders, which is opposite to the angle of the base. Its pushing direction is opposite to that of the first push-to-close folding plate.

[0014] Preferably, the first glue coating member is arranged on one side of the support plate, and the gluing position of the first glue coating member is located on the front surface of the paper bag on the pressing side after the locking plate is bent 90 degrees; The second glue coating member is arranged at one side of the vertical proofreading plate, and the gluing position of the second glue coating member is located at the side surface of the paper bag after the first pushing and folding plate is fully pushed in.

[0015] The present invention also provides a control method for an automatic folding and sealing mechanism of a paper bag machine, comprising the following steps: Steps: stack wrapping paper in paper bag; Steps: The stacked paper bags are divided into the front X, the back Y, the left Z, the right U, the top V, and the bottom W, wherein the front X faces the direction of the slide, and the left Z and the right U face the vertical alignment plates on both sides; Steps: The stacked paper bags are transported to the top of the guide plate by a conveyor belt, and the wrapping paper reel is started to wrap the wrapping paper around the paper bag stack along the extension direction of the guide seat, that is, the bottom surface W, the back surface Y, and the top surface V are wrapped in sequence, and the front surface X, the left surface Z, and the right surface U are open and unwrapped; Steps: Fold and glue the front X; Steps: Before folding, the locking plate is flush with the guide plate, and part of the packaging paper is left above the locking plate. The swing arm driving motor of the front rotating abutment plate is started, and the front rotating abutment plate extends along both sides of the paper bag stack and stops, and can abut against the packaging paper in the front X, so that the two sides of the packaging paper will not be suspended when gluing; Steps: Start the first glue coating part to evenly apply glue horizontally on the X-side surface of the packaging paper, then start the first cylinder, which pushes the locking plate to fold 90 degrees through the crank mechanism, bends the packaging paper on the locking plate to the front X of the paper bag stack, and makes the packaging paper close to the paper bag stack. Stick it for one minute until it is completely bonded, and the front X of the paper bag stack is glued; Steps: The front rotating abutment plate is reset with the first cylinder, and the front X wrapping is completed; Steps: Fold and glue the left side Z and the right side U; Steps: Start the second cylinders on both sides, synchronously drive the first push-and-close folding plate to slide along the second cylinder track, push the packaging paper at the rear Y to the side, until the packaging paper is attached to the side of the paper bag stack and locked; Steps: Start the second glue coating parts on both sides to evenly apply glue on both sides of the packaging paper from top to bottom along the side packaging paper, then drive the abutment plates, with the upper abutment plates facing downward and the lower abutment plates facing upward, respectively covering the two sides of the packaging paper in a triangular shape, and both the upper and lower packaging bags are in contact with the glue surface; Steps: Start the third cylinders on both sides, and synchronously drive the second push-to-close folding plate to slide along the third cylinder track, push the packaging paper X in front to the side, press and cover the packaging paper on the side, and also contact the adhesive surface, press and fit for one minute until it is completely bonded, and the left side Z and the right side U of the paper bag stack are glued; Steps: The second cylinder and the third cylinder are reset, the abutment plate is pulled out from the gap of the paper bag in the opposite direction of rotation and reset, and the paper bag stack is wrapped.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The automatic folding and sealing mechanism of a paper bag machine of the present invention drives each folding component separately through a power component, and uses a gluing component to perform gluing before folding. The mechanism adopts an automatic control program to realize fully automatic folding and sealing, which significantly reduces manual intervention and simplifies the operation process, thereby increasing the production speed of paper bags, ensuring efficient continuous operation, and greatly improving work efficiency; 2. The folding device of the automatic folding and sealing mechanism of a paper bag machine of the present invention is compactly configured, can adapt to production environments of different scales, fully optimize space utilization, make the equipment layout more flexible, and facilitate application in diversified production scenarios; 3. A control method for an automatic folding and sealing mechanism of a paper bag machine of the present invention includes comprehensive management of the stacking, front folding and sealing, and side folding and sealing of paper bag packaging. A front rotating abutment plate is provided in the front folding process, which can provide effective abutment during the gluing and bonding process to ensure that the two sides of the packaging paper will not be suspended during gluing. During the side folding and bonding process, the side packaging paper is abutted and sealed by the cooperation of the upper and lower abutment plates and the second push-to-fold plate. Finally, the upper and lower abutment plates are pulled out from the gap of the paper bag to achieve complete sealing of the paper bag. This design not only improves the quality and efficiency of packaging, but also ensures the overall appearance and functionality of the paper bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of an automatic folding and sealing mechanism of a paper bag machine provided by the present invention; Figure 2 It is a schematic diagram of the overall structure of the automatic folding and sealing mechanism of a paper bag machine provided by the present invention from another angle; Figure 3 This is a front view of an automatic folding and sealing mechanism for a paper bag machine provided by the present invention; Figure 4 It is a top view of an automatic folding and sealing mechanism of a paper bag machine provided by the present invention; In the figure: 1. base; 2. folding assembly; 3. power assembly; 4. gluing assembly; 101. guide seat; 102. upper base; 103. vertical proofreading plate; 104. support plate; 105. slide; 201. locking plate; 202. upper rotating folding plate; 203. lower rotating folding plate; 204. first push-to-close folding plate; 205. abutment plate; 206. front rotating abutment plate; 207. second push-to-close folding plate; 301. first cylinder; 302. second cylinder; 303. third cylinder; 304. swing arm drive motor; 401. first gluing member; 402. second gluing member. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are in very simplified form and in non-precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0021] Embodiment 1 The present invention provides an automatic folding and sealing mechanism for a paper bag machine, see Figures 1 to 4, comprising a base 1, the base 1 comprising a guide seat 101, an upper base 102 arranged above the guide seat 101, vertical proofreading plates 103 arranged on both sides of the guide seat 101, a support plate 104 arranged on one side of the guide seat 101, and a slide 105 arranged on one side of the support plate 104; a folding component 2, the folding component 2 comprising a locking plate 201 arranged at one end of the guide seat 101, an upper rotating folding plate 202 arranged below the upper base 102, lower rotating folding plates 203 arranged on both sides of the guide seat 101, a first push-to-close folding plate 204 arranged on one side of the vertical proofreading plate 103, and a first push-to-close folding plate 205 arranged on the upper rotating folding plate 20 2 and the abutting plate 205 on one side of the lower rotating folding plate 203, the front rotating abutting plate 206 arranged on one side of the supporting plate 104, and the second pushing and folding plates 207 arranged on both sides of the slide 105; a power component 3, the power component 3 includes a first cylinder 301 arranged in the guide seat 101, a second cylinder 302 arranged on one side of the vertical proofreading plate 103, a pair of third cylinders 303 arranged on both sides of the slide 104, and a plurality of swing arm driving motors 304; a gluing component 4, the gluing component 4 includes a first gluing member 401 arranged on one side of the locking plate 201, and a second gluing member 402 arranged on the outer side of the vertical proofreading plate 103.

[0022] The guide seat 101 includes a guide plate 101a, and the first cylinder 301 is fixedly installed at the bottom of the guide plate 101a; the locking plate 201 is driven by the first cylinder 301 so that it can be folded 90 degrees along the plane of the guide plate 101a; the upper rotating folding plate 202 and the lower rotating folding plate 203 are driven by the swing arm driving motor 304 arranged on their respective sides so that they can swing horizontally 90 degrees along the parallel plane between the upper base 102 and the guide seat 101; the first push-to-fold plate 204 is connected to one side of the second cylinder 302 and is driven by the second cylinder 302 so that it can slide along the track of the second cylinder 302; the first push-to-fold plate 204 is a pair, and the first push-to-fold plates 204 on both sides can clamp the paper bag package from both sides when sliding synchronously; the abutting plate 205 is driven by the swing arm driving motor 304 arranged on its respective side so that it can swing vertically 90 degrees along the parallel plane of the vertical proofreading plate 103 The front rotating abutment plate 206 is driven by a swing arm driving motor 304 arranged on one side thereof, and it swings along with the swing of the locking plate 201, clamping the front end of the paper bag between the locking plate 201 and the abutment plate 206, so as to provide abutment support for the paper bag during gluing; the second push-to-fold plate 207 is driven by the third cylinder 303, so that it can slide along the track direction of the third cylinder 303, and the track direction is inclined, forming a 5 The opening of ~10 degrees is opposite to the angle of the base 1, and its pushing direction is opposite to the first pushing and folding plate 204; the first glue coating member 401 is arranged on one side of the support plate 104, and the gluing position of the first glue coating member 401 is located on the front surface of the paper bag on the pressing side after the locking plate 201 is bent ninety degrees; the second glue coating member 402 is arranged on one side of the vertical proofreading plate 103, and the gluing position of the second glue coating member 402 is located on the side surface of the paper bag after the first pushing and folding plate 204 is fully pushed.

[0023] It should be noted that the guide seat 101 is used to place the paper bag stack, which is stacked by a palletizer and transported to the guide plate 101a. Prior to this, a layer of wrapping paper has been laid on the guide plate 101a, and the wrapping paper is transported to the top of the guide plate 101a along a roller via a reel. When the paper bag stack is placed on the guide plate 101a, the wrapping paper wraps around the paper bag stack to perform pressing packaging on the bottom, back and top.

[0024] Preferably, a first cylinder 301 is fixedly installed at the bottom of the guide plate 101a, and the first cylinder 301 is used to drive and push the locking plate 201. The specific method is as follows: Figure 2As shown, the first cylinder 301 is connected to the crank, and the crank rod is connected to the locking plate 201. When the cylinder arm of the first cylinder 301 is extended, it will push the locking plate 201 to fold 90 degrees, so that the locking plate 201 is perpendicular to the guide plate 101a. The first cylinder 301 contracts, and the locking plate 201 is restored to a state flush with the guide plate 101a.

[0025] Preferably, the upper base 102 is fixedly mounted above the base 1, and there is a pair of them, with the left and right sides of the paper bag stack respectively corresponding to the lower part. The upper base 102 is downwardly mounted with an upper rotating folding plate 202 and abutting plate 205.

[0026] Preferably, the vertical proofreading plate 103 is perpendicular to the guide plate 101a, and is vertically fixedly installed on both sides of the guide plate 101a. The second cylinder 302 is fixedly installed on the inner side of the vertical proofreading plate 103. The second cylinder 302 is used to drive the first push-and-fold plate 204. The first push-and-fold plate 204 is used to push the packaging paper behind the paper bag stack to the side and lay it flat. The first push-and-fold plate 204 is a square plate, and the plate surface has a raised arc in the pushing direction. It will slowly contact the paper surface during the pushing process, which helps to guide the paper to pass smoothly through both sides of the paper bag stack, and can also prevent the paper from being damaged due to the paper getting stuck in the folding plate, thereby reducing the tearing and wrinkling of the paper.

[0027] Preferably, the support plate 104 is fixedly installed between the guide seat 101 and the slide 105, and the front rotating abutment plate 206 is fixedly installed on the support plate 104. The front rotating abutment plate 206 can rotate 90 degrees. After the rotation is completed, it will form a flush state with a certain gap with the locking plate 201, and the packaging paper will be clamped in this gap. It is used to abut the packaging paper when gluing, which can prevent the two sides of the packaging paper from being suspended in the air during gluing, causing problems such as loose adhesion.

[0028] Preferably, the slide 105 is fixedly installed opposite to the guide seat 101, and the third cylinder 303 is fixedly installed on both sides of the slide 105. The third cylinder 303 is used to drive the second push-and-fold plate 207. The second push-and-fold plate 207 is used to push the packaging paper in front of the paper bag stack to the side and lay it flat, pressing the packaging paper laid on one side of the first push-and-fold plate 204 and adhering it to it. The second push-and-fold plate 207 has the same shape as the first push-and-fold plate 204, both have a raised arc, and the pushing directions are opposite.

[0029] Preferably, the glue coating member uses a sprayable water-based glue, which is evenly sprayed on the packaging paper through a linearly moving spraying device through the reciprocating motion of a motor. After spraying, it takes about one minute to adhere to the packaging paper, and after curing, the best bonding effect can be ensured. The process can also be accelerated by equipping a heating device to improve packaging efficiency. The first glue coating member 401 is installed on the inner side of the support plate 104, and its movement method is to move horizontally parallel to the guide plate 101a for spraying. The second glue coating member 402 is installed on one side of the vertical proofreading plate 103 to align with the paper bag stack, and its movement method is to move vertically up and down perpendicular to the direction of the guide plate 101a for spraying.

[0030] In summary, an automatic folding and packaging mechanism for a paper bag machine of the present invention drives each folding component separately through a power component, and uses a gluing component to perform gluing before folding. The mechanism adopts an automatic control program to realize fully automatic folding and packaging, which significantly reduces manual intervention and simplifies the operation process, thereby increasing the production speed of paper bags, ensuring efficient continuous operation, and greatly improving work efficiency; in addition, the folding equipment of the present invention has a compact configuration, can adapt to production environments of different scales, fully optimizes space utilization, makes the equipment layout more flexible, and is convenient for application in a variety of production scenarios.

[0031] Embodiment 2 The present invention provides a control method for the automatic folding and sealing mechanism of a paper bag machine. Figures 1 to 4 , including the following steps: Step (A): stacking packaging paper into paper bags; Step (A1): the stacked paper bags are divided into a front X, a back Y, a left Z, a right U, a top V, and a bottom W, wherein the front X faces the direction of the slide, and the left Z and the right U face the vertical alignment plates 103 on both sides; Step (A2): The stacked paper bags are transported to the top of the guide plate 101a by a conveyor belt, and the wrapping paper roll is started to wrap the wrapping paper around the paper bag stack along the extension direction of the guide seat 101, that is, the bottom surface W, the back surface Y, and the top surface V are wrapped in sequence, and the front surface X, the left surface Z, and the right surface U are in an open and unwrapped state; Step (B): Fold and glue the front X; Step (B1): before folding, the locking plate 201 is flush with the guide plate 101a, and a portion of the packaging paper is left above the locking plate 201. The swing arm driving motor 304 of the front rotating abutting plate 206 is started, and the front rotating abutting plate 206 extends along both sides of the paper bag stack and stops, and can abut against the packaging paper in front of X, so that the two sides of the packaging paper will not be suspended when gluing; Step (B2): Start the first glue coating member 401 to evenly apply glue on the surface X of the packaging paper horizontally, then start the first cylinder 301, and the first cylinder 301 pushes the locking plate 201 through the crank mechanism to fold 90 degrees, so that the packaging paper on the locking plate 201 is bent to the front X of the paper bag stack, so that the packaging paper is close to the paper bag stack, and the paper is close to the paper bag stack for one minute until it is completely bonded, and the bonding of the front X of the paper bag stack is completed; Step (B3): the front rotating abutment plate 206 and the first cylinder 301 are reset, and the front X wrapping is completed; Step (C): fold and glue the left side Z and the right side U; Step (C1): Start the second cylinders 302 on both sides, and synchronously drive the first push-and-fold plate 204 to slide along the track of the second cylinders 302, and push the packaging paper at the rear Y to the side until the packaging paper is attached to the side of the paper bag stack and locked; Step (C2): Start the second glue coating members 402 on both sides to evenly apply glue on both sides of the packaging paper from top to bottom along the side packaging paper, and then drive the abutting plates 205, with the upper abutting plates 205 facing downward and the lower abutting plates 205 facing upward, to cover the two sides of the packaging paper in a triangular shape, respectively, so that the upper and lower packaging bags are in contact with the glue surface; Step (C3): Start the third cylinders 303 on both sides, and synchronously drive the second push-and-close folding plate 207 to slide along the track of the third cylinder 303, push the packaging paper X in the front to the side, press and cover the packaging paper on the side, and also contact the adhesive surface, press and fit for one minute until it is completely bonded, and the left side Z and the right side U of the paper bag stack are glued; Step (C4): The second cylinder 302 and the third cylinder 303 are reset, and the abutting plate 205 is pulled out from the gap of the paper bag in the opposite direction of the rotation direction and reset, and the paper bag stack is wrapped.

[0032] In summary, the control method of the automatic folding and sealing mechanism of a paper bag machine of the present invention includes comprehensive management of the stacking, front folding seal and side folding seal of the paper bag packaging. A front rotating abutment plate is provided in the front seal to provide effective abutment during the gluing and bonding process to ensure that the two sides of the packaging paper will not be suspended during gluing. During the side folding and bonding process, the side packaging paper is abutted and sealed by the cooperation of the upper and lower abutment plates and the second push-to-fold plate. Finally, the upper and lower abutment plates are pulled out of the gap of the paper bag to achieve complete sealing of the paper bag. This design not only improves the quality and efficiency of the packaging, but also ensures the overall appearance and functionality of the paper bag. The present invention significantly improves the automation level and efficiency of paper bag production through innovative design and optimized control methods, and provides strong support for the intelligent development of the paper bag industry.

[0033] The above description is only a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes or modifications made by a person skilled in the art in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. An automatic folding and sealing mechanism for a paper bag machine, characterized in that: include, A base (1), the base (1) comprising a guide seat (101), an upper base (102) arranged above the guide seat (101), vertical alignment plates (103) arranged on both sides of the guide seat (101), a support plate (104) arranged on one side of the guide seat (101), and a slide table (105) arranged on one side of the support plate (104); A folding assembly (2), the folding assembly (2) comprising a locking plate (201) arranged at one end of the guide seat (101), an upper rotating folding plate (202) arranged below the upper base (102), lower rotating folding plates (203) arranged on both sides of the guide seat (101), a first push-to-fold plate (204) arranged on one side of the vertical alignment plate (103), an abutment plate (205) arranged on one side of the upper rotating folding plate (202) and the lower rotating folding plate (203), a front rotating abutment plate (206) arranged on one side of the support plate (104), and second push-to-fold plates (207) arranged on both sides of the slide (105); A power assembly (3), the power assembly (3) comprising a first cylinder (301) arranged in the guide seat (101), a second cylinder (302) arranged on one side of the vertical calibration plate (103), a pair of third cylinders (303) arranged on both sides of the slide table (104), and a plurality of swing arm drive motors (304); A glue coating component (4), the glue coating component (4) comprising a first glue coating member (401) arranged on one side of the locking plate (201), and a second glue coating member (402) arranged on the outside of the vertical calibration plate (103).

2. The automatic folding and sealing mechanism for a paper bag machine as claimed in claim 1, characterized in that: The guide seat (101) comprises a guide plate (101a), and the first cylinder (301) is fixedly mounted on the bottom of the guide plate (101a).

3. The automatic folding and sealing mechanism for a paper bag machine as claimed in claim 2, characterized in that: The locking plate (201) is driven by a first cylinder (301) so that it can be folded 90 degrees along the plane of the guide plate (101a).

4. The automatic folding and sealing mechanism for a paper bag machine as claimed in claim 3, characterized in that: The upper rotating folding plate (202) and the lower rotating folding plate (203) are driven by a swing arm driving motor (304) arranged on one side of each of them, so that they can swing horizontally at 90 degrees along a plane parallel to the upper base (102) and the guide seat (101).

5. The automatic folding and sealing mechanism for a paper bag machine as claimed in claim 4, characterized in that: The first push-to-close folding plate (204) is connected to one side of the second cylinder (302) and is driven by the second cylinder (302) so as to be able to slide along the track of the second cylinder (302); The first push-to-fold plates (204) are a pair, and an angle of 85 to 90 degrees is formed between the push planes of the two first push-to-fold plates (204). When the first push-to-fold plates (204) on both sides slide synchronously, the paper bag package can be clamped from both sides.

6. The automatic folding and sealing mechanism for a paper bag machine as claimed in claim 5, characterized in that: There are four abutment plates (205) arranged in two pairs, one above the other, and driven by swing arm drive motors (304) arranged on one side of each abutment plate, so that the abutment plates (205) can swing vertically by 90 degrees in a direction parallel to the plane of the vertical alignment plate (103).

7. The automatic folding and sealing mechanism for a paper bag machine as claimed in claim 6, characterized in that: The front rotating abutment plate (206) is driven by a swing arm drive motor (304) arranged on one side thereof, and swings along with the swing of the locking plate (201), clamping the front end of the paper bag between the locking plate (201) and the front rotating abutment plate (206), so as to provide abutment support for the paper bag when gluing.

8. The automatic folding and sealing mechanism for a paper bag machine as claimed in claim 7, characterized in that: The second push-to-close folding plate (207) is driven by the third cylinder (303) so that it can slide along the track direction of the third cylinder (303), the track direction is inclined, and an opening of 5 to 10 degrees is formed between the two third cylinders (303) in the opposite direction to the base (1), and its push-to-close direction is opposite to that of the first push-to-close folding plate (204).

9. The automatic folding and sealing mechanism for a paper bag machine as claimed in claim 8, characterized in that: The first glue coating member (401) is arranged on one side of the support plate (104), and the glue coating position of the first glue coating member (401) is located on the front surface of the paper bag on the pressing side after the locking plate (201) is bent 90 degrees; The second gluing member (402) is arranged on one side of the vertical proofreading plate (103), and the gluing position of the second gluing member (402) is located on the side surface of the paper bag after the first pushing and folding plate (204) is fully pushed in.

10. A control method for the automatic folding and sealing mechanism of a paper bag machine as claimed in any one of claims 1 to 9, characterized in that: The steps include: Step (A): stacking packaging paper into paper bags; Step (A1): dividing the stacked paper bags into a front X, a back Y, a left Z, a right U, a top V, and a bottom W, wherein the front X faces the direction of the slide, and the left Z and the right U face the vertical alignment plates (103) on both sides; Step (A2): the stacked paper bags are transported to the top of the guide plate (101a) via a conveyor belt, and the wrapping paper roll is started to wrap the wrapping paper around the outside of the paper bag stack along the extension direction of the guide seat (101), i.e., the bottom surface W, the back surface Y, and the top surface V are wrapped in sequence, and the front surface X, the left surface Z, and the right surface U are in an open and unwrapped state; Step (B): Fold and glue the front X; Step (B1): before folding, the locking plate (201) is flush with the guide plate (101a), and a portion of the packaging paper is left above the locking plate (201). The swing arm driving motor (304) of the front rotating abutting plate (206) is started, and the front rotating abutting plate (206) extends along both sides of the paper bag stack and stops, and can abut against the packaging paper in the front X, so that the two sides of the packaging paper will not be suspended in the air when gluing; Step (B2): start the first glue coating member (401) to evenly apply glue horizontally on the surface X of the packaging paper, then start the first cylinder (301), the first cylinder (301) pushes the locking plate (201) through the crank mechanism to fold 90 degrees, bend the packaging paper on the locking plate (201) to the front X of the paper bag stack, so that the packaging paper is close to the paper bag stack, and the paper is close to the paper bag stack for one minute until it is completely bonded, and the bonding of the front X of the paper bag stack is completed; Step (B3): the front rotating abutment plate (206) and the first cylinder (301) are reset, and the front X wrapping is completed; Step (C): fold and glue the left side Z and the right side U; Step (C1): start the second cylinders (302) on both sides, synchronously drive the first push-and-fold plate (204) to slide along the track of the second cylinder (302), and push the packaging paper at the rear Y to the side until the packaging paper is in contact with the side of the paper bag stack and locked; Step (C2): activating the second glue coating members (402) on both sides to evenly apply glue on both sides of the packaging paper from top to bottom along the side packaging paper, and then driving the abutment plates (205), with the upper abutment plates (205) facing downward and the lower abutment plates (205) facing upward, respectively covering the two sides of the packaging paper in a triangular shape, so that the upper and lower packaging bags are in contact with the glue surface; Step (C3): Start the third cylinders (303) on both sides, and synchronously drive the second push-and-close folding plate (207) to slide along the track of the third cylinder (303), push the packaging paper X in the front to the side, press and cover the packaging paper on the side, and also contact the adhesive surface, press and fit for one minute until it is completely bonded, and the left side Z and the right side U of the paper bag stack are bonded; Step (C4): the second cylinder (302) and the third cylinder (303) are reset, and the abutment plate (205) is pulled out from the gap of the paper bag in the opposite direction of the rotation direction and reset, and the paper bag stack is wrapped.

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