Packaging bag bundling system and packaging bag bundling method

Abstract

A packaging bag bundling system, located downstream of a device outlet end (10) of a packaging bag forming device. The system comprises: a placement platform (100), a clamping mechanism (200), a film covering mechanism (300), a plastic film heat-sealing mechanism (400), and a conveying mechanism (500). The clamping mechanism is arranged on a machine frame, and is capable of reciprocating movement between the device outlet end and the placement platform to perform multiple clamping and stacking operations, so as to form a packaging bag stack within a stacking space on the placement platform. The packaging bag stack is formed by sequentially stacking a plurality of packaging bag groups in a vertical direction. In a same packaging bag group, mouths of the packaging bags are located on a same side in the vertical direction, and in two adjacent packaging bag groups, mouths of the packaging bag groups are respectively located on two opposite sides in the vertical direction. The packaging bag bundling system is capable of continuously performing clamping and stacking operations to rapidly bundle the produced packaging bags, and alternating stacking of bag mouths and bag bottoms provides improved stability. In addition, the invention further relates to a packaging bag bundling method.

Description

Packaging bag packaging system and packaging bag packaging method Technical Field

[0001] This invention relates to the field of bag packaging technology, and in particular to a bag packaging system and a bag packaging method. Background Technology

[0002] Packaging bags are bags used to hold goods. They vary in material, shape, size, and purpose to meet the protection, storage, transportation, and sales needs of different products. Packaging bags play a vital role in modern commerce; they not only protect goods from damage but also enhance brand image and attract consumer attention through design, printing, and material selection.

[0003] In existing technologies, after packaging bags are formed by packaging bag forming equipment, they are output in an assembly line manner, for example, 30, 60, 120 or even more packaging bags per minute. However, after these packaging bags are produced, they need to be collected and packaged manually. Even if some equipment can accumulate a certain number of packaged bags at the equipment outlet before collection, workers are still required to collect and package them. Therefore, each packaging bag forming equipment needs to be equipped with at least one worker to collect and package the packaging bags. When workers pack the bags by physical labor, the packaging efficiency is low, and problems such as packaging errors are prone to occur under high-intensity labor.

[0004] Therefore, existing packaging bag forming equipment requires at least one worker to collect and pack the bags, resulting in low packing efficiency and poor packing effect. Summary of the Invention

[0005] The purpose of this invention is to solve the problems of low packaging efficiency and poor packaging effect in existing packaging bag forming equipment, which requires at least one worker to collect and pack packaging bags.

[0006] To address the aforementioned technical problems, embodiments of the present invention disclose a packaging bag packaging system. The packaging bag packaging system is located downstream of the outlet end of a packaging bag forming equipment and includes a placement platform, a clamping mechanism, a film-coating mechanism, a heating and sealing mechanism, and a conveying mechanism. The placement platform is located downstream of the equipment outlet end.

[0007] The clamping mechanism is mounted on the frame and can move back and forth between the equipment outlet and the placement platform to perform multiple clamping and stacking actions, so as to form a stack of packaging bags in the stacking space on the placement platform.

[0008] The laminating unit is located downstream of the placement platform in the packaging direction, receives the stack of packaging bags from the placement platform, and covers the outer periphery of the stack of packaging bags with a protective film.

[0009] The heating and sealing mechanism is located downstream of the laminating mechanism in the packaging direction. It heats the protective film on the outer periphery of the packaging bag stack from the laminating mechanism so that the protective film is heated and seals the outer periphery of the packaging bag stack.

[0010] The conveying mechanism transports the stacked packaging bags on the placement platform through the film-coating mechanism and the heating and sealing mechanism in sequence.

[0011] During each clamping and stacking action, the clamping head of the clamping mechanism approaches the equipment outlet, clamps a group of packaging bags, moves it above the placement platform, and horizontally stacks the group of packaging bags in the stacking space. A group of packaging bags is composed of a predetermined number of stacked bags, and the stack of packaging bags is formed by stacking multiple groups of packaging bags sequentially in the vertical direction. Furthermore, within the stack of packaging bags, in the same group, the openings of all bags are located on the same side in the vertical direction. And in two adjacent groups of packaging bags, the openings of each group are located on opposite sides in the vertical direction.

[0012] By adopting the above technical solution, this application provides a fully automated and efficient packaging bag packaging system. The clamping mechanism reciprocates between the equipment outlet and the placement platform, performing multiple clamping and stacking actions. This continuous clamping and stacking action ensures continuous operation of the production line. Combined with the production speed and capacity of the high-speed packaging bag forming equipment, it quickly packages the produced bags. Furthermore, the clamping mechanism can precisely control the clamping force and moving speed, thereby ensuring that the materials are not damaged during clamping and stacking, guaranteeing product quality. Because the clamping mechanism can operate according to a preset program, each clamping and stacking action is consistent, improving product consistency and stability. It also saves labor costs and offers higher safety performance.

[0013] More importantly, the packaging system provided in this application can perform multiple clamping and stacking actions in a single packaging process. Each clamping and stacking action clamps a group of packaging bags (composed of multiple packaging bags), and then stacks multiple groups of packaging bags sequentially on the placement platform to form a packaging bag stack (multiple groups of packaging bags). Through this design, a larger number of packaging bags can be stacked in one packaging bag stack. For example, a group of packaging bags includes 20 packaging bags, and a packaging bag stack includes 5 groups, so a packaging bag stack has 100 packaging bags stacked together, thus meeting the need to stack multiple packaging bags at one time.

[0014] Furthermore, in the packaging bag stacking system disclosed in this application, the bag openings of adjacent groups of bags are located on opposite sides in the vertical direction. That is, in the same stack, the bag openings and bottoms of adjacent groups are placed in an overlapping manner (bags and bottoms are alternately stacked). Because the thickness of the bag opening and bottom is inconsistent within a group of bags, generally the bottom is thicker than the opening, this application optimizes the stacking method by setting up a packaging system that enables automatic collection and alternating stacking, making the bag stacks more stable and less prone to collapse. This meets the requirements for both large-scale bag stacking and stable flat placement.

[0015] More preferably, each clamping and stacking action includes a clamping stroke, a horizontal transfer stroke, and a stacking stroke; furthermore, in two adjacent clamping and stacking actions, the horizontal transfer stroke distance is different, and the stacking stroke direction is opposite. Through this configuration, by adjusting and designing the different horizontal transfer strokes and stacking strokes in two adjacent clamping and stacking actions, the bag opening and bag bottom are stacked in a staggered and opposite manner in two adjacent clamping and stacking actions.

[0016] More preferably, the packaging bag packing system further includes a bag limiting mechanism, which includes a first limiting frame and a second limiting frame extending upward from the placement platform. The first limiting frame and the second limiting frame are spaced apart from each other along the horizontal conveying direction of the horizontal conveying stroke. The first limiting frame and the second limiting frame define a stacking space for placing the packaging bags. In the horizontal conveying direction, a first auxiliary support plate and a second auxiliary support plate are respectively inclinedly provided on the outer side of the first limiting frame and the second limiting frame.

[0017] More preferably, it also includes a base plate placement mechanism and a labeling mechanism. The base plate placement mechanism is used to lay the receiving base plate flat in the stacking space of the placement platform, and the packaging bags are stacked on the receiving base plate. The labeling mechanism affixes the label to the protective film on the surface of the stacked packaging bags.

[0018] The present invention also discloses a packaging bag packing method, which is applied to the above-mentioned packaging bag packing system, and the method includes:

[0019] S1. The clamping mechanism clamps a group of packaging bags from the outlet end of the packaging bag forming equipment. The clamping mechanism clamps and transfers a group of packaging bags to the placement platform and stacks the group of packaging bags on the placement platform along the first horizontal direction.

[0020] S2. The clamping mechanism returns to the equipment outlet, clamps the new packaging bag group, and moves the new packaging bag group to the top of the placement platform. It then stacks the packaging bag group on top of the existing packaging bag group on the placement platform along the second horizontal direction, which is opposite to the first horizontal direction.

[0021] S3. Repeat steps S1 and S2 until a predetermined stack of packaging bags is formed, wherein the stack is composed of multiple groups of packaging bags stacked vertically in sequence. Furthermore, within the same group of packaging bags, the openings of the bags are located on the same side vertically. And in two adjacent groups of packaging bags, the openings and bottoms of each group are located on opposite sides vertically.

[0022] S4. The conveying mechanism transports the stacked packaging bags along the conveying path to the downstream laminating mechanism. The laminating mechanism receives the stacked packaging bags from the placement platform and covers the outer periphery of the stacked packaging bags with a protective film. The cutting component of the laminating mechanism cuts the protective film on the upstream and downstream sides of the stacked packaging bags in the conveying direction.

[0023] S5. The conveying mechanism transports the stacked packaging bags covered with protective film to the heating and sealing chamber, where the protective film is heated to seal the stacked packaging bags.

[0024] By adopting the above technical solution, the packaging bag packaging method disclosed in this application can achieve fully automated and efficient packaging, and can continuously perform clamping and stacking actions, ensuring continuous operation of the production line. Combined with the production speed and capacity of high-speed packaging bag forming equipment, it can quickly package the produced packaging bags. Attached Figure Description

[0025] Figure 1 is a schematic diagram of the overall structure of the packaging bag packing system provided in an embodiment of the present invention;

[0026] Figure 2 is a partial structural schematic diagram of the clamping mechanism of the packaging bag packing system provided in an embodiment of the present invention;

[0027] Figure 3 is a partial structural schematic diagram of the clamping mechanism and the base plate placement mechanism of the packaging bag packaging system provided in an embodiment of the present invention;

[0028] Figure 4 is a schematic diagram of the stacking process of the clamping mechanism of the packaging bag packing system provided in the embodiment of the present invention, in which the bag openings and bottoms of two adjacent packaging bag groups are stacked in opposite directions;

[0029] Figure 5 is a partial structural schematic diagram of the film-coating mechanism of the packaging bag packing system provided in an embodiment of the present invention;

[0030] Figure 6 is a partial structural schematic diagram of the first drive mechanism of the packaging bag packing system provided in an embodiment of the present invention;

[0031] Figure 7 is a flowchart of the packaging bag packing method provided in Embodiment 2 of the present invention.

[0032] Explanation of reference numerals in the attached drawings: 10. Equipment outlet end; 101. Packaging bag group; 100. Placement platform; 200. Clamping mechanism; 210. Clamping head; 211. Swinging part; 220. Horizontal drive assembly; 221. Horizontal drive unit; 222. Horizontal guide unit; 223. Horizontal moving seat; 230. Vertical drive assembly; 231. Connecting seat; 232. Vertical drive unit; 233. Vertical lifting plate; 234. Vertical transmission belt; 2341. One side belt; 2342. The other side belt; 2343. Connecting plate; 2344. Auxiliary connecting plate; 235. Auxiliary vertical lifting plate; 236. First guide assembly; 237. Second guide assembly; 300. Film covering mechanism; 310. Storage assembly; 311. Storage frame; 312. Storage roller shaft; 313. Conveying roller shaft; 320. Film laying support; 330. Cutting assembly; 340. Laminating channel; 350. Pressing plate; 400. Heating and sealing mechanism; 410. Heating and sealing chamber; 420. Sealing inlet; 430. Sealing outlet; 500. Conveying mechanism; 510. First conveying mechanism; 511. Conveying guide unit; 512. Sliding seat; 513. Pressing rod; 514. Support part; 520. Second conveying mechanism; 530. Third conveying mechanism; 600. Labeling mechanism; 700. Base plate placement mechanism; 710. Placement swing arm; 720. Adsorption assembly; 800. Bag body limiting mechanism; 911. First upward stroke; 912. First horizontal movement stroke; 913. First downward movement stroke; 914. First stacking stroke; 915. First packaging bag group; 921. Second upward stroke; 922. Second horizontal movement stroke; 923. Second downward movement stroke; 924. Second stacking stroke; 925. Second packaging bag set. Detailed Implementation

[0033] Packaging bags play a vital role in modern commerce. They not only protect goods from damage but also enhance brand image and attract consumer attention through design, printing, and material selection. With technological advancements, numerous packaging bag forming machines have emerged. These machines typically fold sheet materials into three-dimensional packaging bags. The formed bags are then folded and output, and subsequently collected, stored, or transported for later use.

[0034] After existing packaging bag forming equipment is manufactured, the bags produced by the equipment need to be collected and packaged manually. Each packaging bag forming machine requires at least one worker to collect and package the bags. When workers rely solely on physical labor for packaging, the packaging efficiency is low, and errors are prone to occur under high-intensity labor. Furthermore, with the development of technology, the bag forming speed of packaging bag forming equipment is getting faster and faster, for example, outputting 120, 150 or even faster per minute. This requires workers to collect and sort 120, 150 or even more bags per minute. It is difficult to meet the packaging needs of high-speed machines by manual labor alone. In addition, although there are some auxiliary packaging mechanisms in the existing technology, these mechanisms only accumulate a certain number of bags at the equipment outlet before collecting them, which still cannot achieve automated packaging. Therefore, it is impossible to achieve fully automated production line production.

[0035] To address the aforementioned technical problems, this application discloses a packaging bag packing system. This system, through the coordinated operation of a placement platform, clamping mechanism, laminating mechanism, heating and sealing mechanism, and conveying mechanism, enables automated packing, stacking, laminating, and heating and sealing of packaging bags. This allows for the packing of pre-produced bags. Furthermore, the system can hold and pack a large number of bags at once, meeting the speed requirements of high-speed machines and achieving fully automated packing. Those skilled in the art will understand that the packaging bag packing system disclosed in this application can also pack various common bag types, such as tote bags, non-woven bags, paper bags, and plastic bags.

[0036] The following is a brief description of the specific structure, coordination method, and working process of the packaging bag packing system disclosed in this application:

[0037] This invention discloses a packaging bag packing system located downstream of the equipment outlet 10 of a packaging bag forming device. The system includes a placement platform 100, a clamping mechanism 200, a laminating mechanism 300, a heating and sealing mechanism 400, and a conveying mechanism 500. Those skilled in the art will understand that the packaging bag packing system disclosed in this application, by setting these structures, enables the following sequential actions: clamping and stacking packaging bags to form a packaging bag stack; then conveying the packaging bag stack to the laminating mechanism 300 to complete the lamination of the outer layer of the packaging bag stack; the laminating film can be a dustproof film, protective film, etc.; after lamination, it is conveyed to the heating and sealing mechanism 400 for heating and sealing. The conveying mechanism 500 is used to transport the packaging bag stack between two adjacent mechanisms, for example, from the placement platform 100 to the laminating mechanism 300, and from the laminating mechanism 300 to the heating and sealing mechanism 400, etc. The conveying mechanism 500 can be a push conveying mechanism, a belt drive conveying mechanism, etc., and can be adjusted and designed according to specific needs.

[0038] The placement platform 100, clamping mechanism 200, film covering mechanism 300, and heating and sealing mechanism 400 disclosed in this application are arranged sequentially along the packaging direction. Therefore, referring to Figure 1, in one arrangement, the placement platform 100, clamping mechanism 200, film covering mechanism 300, and heating and sealing mechanism 400 are arranged in a straight line. In another arrangement, they can also be arranged in different ways such as "L" shape or "U" shape depending on the shape of the site or the need to reduce the floor space. Those skilled in the art can design and select according to actual needs.

[0039] In this application, the placement platform 100 is located downstream of the equipment outlet 10. Preferably, the placement platform 100 is located downstream of the equipment outlet 10, near the outlet end. Similarly, the clamping mechanism 200 is mounted on the frame and can reciprocate between the equipment outlet 10 and the placement platform 100 to perform multiple clamping and stacking actions, thereby forming a stack of packaging bags within the stacking space on the placement platform 100. Therefore, the clamping mechanism 200 is also located downstream of the equipment outlet 10, near the outlet end. It should be noted that when the clamping mechanism 200 reciprocates between the equipment outlet 10 and the placement platform 100 to perform clamping and stacking actions, the clamping mechanism 200 clamps a certain number of packaging bags (hereinafter also referred to as packaging bag group 101) at the equipment outlet 10 and then transfers and stacks them on the placement platform 100. Therefore, all actions of the clamping mechanism 200 in this application involve clamping packaging bags at the equipment outlet 10 and then horizontally stacking them on the placement platform 100. The clamping mechanism 200 must be equipped with at least one component that can switch between clamping and releasing, such as a clamping head 210, a gripper, a robotic arm, etc. Each clamping process can clamp 10, 15, 20 or other numbers of packaging bags at once. This embodiment does not make specific limitations on this.

[0040] As mentioned above, the laminating mechanism 300 is located downstream of the placement platform 100 in the packaging direction. Specifically, the laminating mechanism 300 is an adjacent station downstream of the placement platform 100. The laminating mechanism 300 receives the stacks of packaging bags from the placement platform 100 conveyed by the conveying mechanism 500 and covers the outer periphery of the stacks with a protective film. The laminating action is performed after receiving each stack of packaging bags. The heating and sealing mechanism 400 is located downstream of the laminating mechanism 300 in the packaging direction. It heats the protective film on the outer periphery of the stacks of packaging bags from the laminating mechanism 300 so that the protective film is heated and seals the outer surface of the stacks of packaging bags.

[0041] The conveying mechanism 500 sequentially transports the stacked packaging bags on the placement platform 100 through the laminating mechanism 300 and the heating and sealing mechanism 400. In other words, the stacked packaging bags need to pass through the laminating mechanism 300 and the heating and sealing mechanism 400 respectively. In one implementation, the conveying mechanism 500 can be configured as a single conveyor belt or conveyor chain to transport the stacked packaging bags between different mechanisms such as the laminating mechanism 300 and the heating and sealing mechanism 400. In another implementation, the conveying mechanism 500 can include multiple individual conveying components arranged between adjacent mechanisms. These multiple conveying components are spaced apart in the packaging direction to ensure that the stacked packaging bags can be transported sequentially through the laminating mechanism 300 and the heating and sealing mechanism 400. For example, a reciprocating conveying component can be arranged between the stacked packaging bags and the laminating mechanism 300, and a conveyor belt or conveyor chain can be arranged between the laminating mechanism 300 and the heating and sealing mechanism 400.

[0042] The clamping and stacking action of the clamping mechanism 200 will be explained in detail below:

[0043] First, it should be noted that in this embodiment, each packaging bag output from the outlet end 10 of the packaging bag forming equipment is a formed packaging bag that has been folded and flattened (for easy sorting, packing, and conveying). Furthermore, in this embodiment, each packaging bag is output vertically outwards. After accumulating to a predetermined quantity at the outlet end, multiple packaging bags are clamped by the clamping head 210 of the clamping mechanism 200, with their tops facing the placement platform 100, and conveyed. It should be noted that the openings of each packaging bag output from the outlet end 10 are identical; for example, all openings face upwards or downwards. In other embodiments or implementations, the packaging bags may be output horizontally outwards, and similarly, after reaching a predetermined quantity, they are clamped by the clamping head 210 of the clamping mechanism 200. The difference lies only in the clamping position and angle of the clamping head 210; this embodiment does not specifically limit this.

[0044] During each clamping and stacking action, the clamping head 210 of the clamping mechanism 200 approaches the equipment outlet end 10, clamps a packaging bag group 101, moves it above the placement platform 100, and horizontally stacks the packaging bag group 101 in the stacking space. The stacking space is a fixed area on the placement platform 100. The clamping head 210 of the clamping mechanism 200 places a packaging bag group 101 in this area each time. As the number of clamping operations increases, multiple packaging bag groups 101 are stacked vertically above the placement platform 100 to form a packaging bag stack. A packaging bag group 101 is formed by stacking a predetermined number of packaging bags. For example, in one preferred implementation, the number of packaging bags in a group of packaging bag groups 101 can be set to any value between 10 and 20, and the packaging bag stack is formed by stacking multiple packaging bag groups 101 vertically in sequence. Furthermore, since each package bag exiting from the equipment outlet 10 faces the same direction (e.g., with the bag opening facing upwards), in the stack of package bags, within the same package bag group 101, the bag openings of each package bag are located on the same side in the vertical direction. In two adjacent package bag groups 101, the bag openings of each package bag group 101 are located on opposite sides in the vertical direction.

[0045] In other words, in the same stack of packaging bags, the openings and bottoms of adjacent groups of bags are placed in an overlapping manner, that is, the openings and bottoms are stacked alternately. This is because the thickness of the opening and bottom of each bag is different. Generally, due to the repeated folding structure of the bottom, the thickness of the bottom is greater than the thickness of the opening. For example, when the thickness of the bottom of each bag is 1mm greater than the thickness of the opening, and there are 10 bags in a group, the bottom of the bag in a group will be 1cm thicker than the opening. If the openings and bottoms are stacked in the same direction, even if there are only 30 bags stacked in one stack, each opening... All these setup methods result in a thickness difference of more than 3cm between the bottom and top of a stack of packaging bags. This inevitably leads to unstable stacking, easy tipping, and an inability to stack a large quantity at once. Therefore, the packaging bag packing system disclosed in this application can automatically collect the bags while stacking them in an alternating manner, or by alternating the top and bottom of the bags. This alternating stacking of the top and bottom of the bags eliminates the height difference between them, optimizes the stacking method, and makes the packaging bags more stable and less prone to collapse. It meets the requirements of both collecting a large number of packaging bags and laying them out stably.

[0046] By employing the aforementioned structural design, this application provides a fully automated and efficient packaging bag packaging system. The clamping mechanism 200 reciprocates between the equipment outlet 10 and the placement platform 100, performing multiple clamping and stacking actions. This continuous clamping and stacking action ensures continuous operation of the production line. Combined with the high-speed production speed and capacity of the high-speed packaging bag forming equipment, it quickly packages the produced bags. Furthermore, the clamping mechanism 200 can precisely control the clamping force and movement speed, ensuring that the materials are not damaged during clamping and stacking, thus guaranteeing product quality. Because the clamping mechanism 200 operates according to a preset program, each clamping and stacking action is consistent, improving product consistency and stability. It also saves labor costs and offers higher safety performance.

[0047] More importantly, the packaging system provided in this application can perform multiple clamping and stacking actions during a single packaging process. Each clamping and stacking action clamps a group of packaging bags 101 (composed of multiple packaging bags), and then stacks multiple groups of packaging bags 101 sequentially on the placement platform 100 to form a packaging bag stack (multiple groups of packaging bags). Through this design, a larger number of packaging bags can be stacked in one packaging bag stack. For example, a group of packaging bags includes 20 bags, and a packaging bag stack includes 5 groups, so a packaging bag stack has 100 packaging bags stacked together. Furthermore, because the bag openings and bottoms are stacked alternately, the height difference between the bag openings and bottoms is eliminated, thereby meeting the need to stack a large number of packaging bags at one time, and thus improving the packaging efficiency of the packaging system.

[0048] To explain the actions, working methods, and coordination between the various mechanisms of the packaging bag packing system disclosed in this application, the following sections will provide detailed explanations of each mechanism, including the clamping mechanism 200, the film covering mechanism 300, the heating and sealing mechanism 400, and the conveying mechanism 500:

[0049] First, the working principle and specific structure of the clamping mechanism 200 will be explained:

[0050] In the packaging bag packing system disclosed in this embodiment, referring to Figures 2 and 3, the clamping mechanism 200 includes a horizontal drive assembly 220, a vertical drive assembly 230, and a clamping assembly. One end of the horizontal drive assembly 220 is fixed to the frame above the equipment outlet 10, and the other end extends horizontally above the placement platform 100 and has a horizontally movable part that can move horizontally. Those skilled in the art should understand that the horizontal drive assembly 220 can be any common structure capable of horizontal movement and drive. For example, the horizontal drive assembly 220 can be a cylinder positioned horizontally, with a horizontal guide rail and a horizontal movable seat at the cylinder's output end, driving the horizontal movable seat to move along the horizontal guide rail. Alternatively, the horizontal drive assembly 220 can be a drive motor, a horizontally positioned gear rack and pinion, a worm gear, or other structures, along with a horizontally positioned horizontal guide rail and horizontal movable seat. For example, the output end of the drive motor is connected to a gear transmission, which then drives the rack and the horizontal movable part to move horizontally. The horizontal drive assembly 220 can also be a drive motor, a conveyor belt arranged in the horizontal direction, a horizontal guide rail, and a horizontal movable seat. The horizontal movable seat is fixedly arranged on one side of the conveyor belt and slidably arranged along the horizontal guide rail. The drive motor drives the conveyor belt to rotate back and forth and drives the horizontal movable seat to move back and forth in the horizontal direction.

[0051] The vertical drive assembly 230 is disposed on the horizontal movable part of the horizontal drive assembly 220 and has a vertical movable part that can move in the vertical direction. The clamping assembly is disposed on the vertical movable part. Similarly, the vertical drive assembly 230 can also be any common structure that can move in the vertical direction, such as a drive cylinder and a vertical guide unit, or a structure in which a drive motor and a conveyor belt cooperate.

[0052] Furthermore, in this embodiment, the horizontal drive component 220 drives the horizontal movable part, the linked vertical drive component 230, and the clamping component to move horizontally, and the vertical drive component 230 drives the vertical movable part and the linked clamping component to move vertically. Each clamping and stacking action includes a clamping stroke, a horizontal conveying stroke, and a stacking stroke. Specifically, the clamping stroke in each clamping and stacking action is basically the same: multiple packaging bags are clamped by the clamping head 210, then conveyed upwards a certain distance along the upward stroke, then moved along the horizontal conveying stroke, and after moving to a predetermined position, conveyed downwards a certain distance along the downward stroke. Finally, a group of packaging bags is stacked on the placement platform 100 along the stacking stroke.

[0053] Furthermore, in two adjacent clamping and stacking actions, the horizontal transfer distances are different, and the stacking directions are opposite. Specifically, taking the placement platform 100 as a reference, in two clamping and stacking actions, one horizontal transfer stroke is longer, and the other horizontal transfer stroke is shorter. In addition, the two opposite stacking strokes are combined to achieve the alternating stacking of the bag opening and bag bottom in the two adjacent stacking processes.

[0054] To illustrate in more detail how the clamping and stacking of the packaging bag group 101 is achieved through two adjacent clamping and stacking operations with different strokes, please refer to Figure 4. In this embodiment, the first and second stacking operations are used as examples for illustration:

[0055] In the figure, the dashed arrows represent the first stacking stroke, and the solid arrows represent the second stacking stroke. At the equipment outlet end 10, there are unstuck packaging bag groups 101. In Figure 4, the black part of each packaging bag group 101 represents the bag opening.

[0056] Taking the first stacking stroke of clamping the first packaging bag group 915 as an example, the clamping head 210 of the clamping mechanism 200 moves from the initial position to the equipment outlet 10 to clamp the bag opening (black part) of the first packaging bag group 915. This is the first clamping stroke. After clamping the first packaging bag group 915, it first moves along the first rising stroke 911. After rising to a predetermined height, it moves along the horizontal direction for the first horizontal moving stroke 912. After moving to the first predetermined position, it moves along the first falling moving stroke 913. Then it moves towards the first stacking stroke 914 so that the first packaging bag group 915 is placed horizontally on the placement platform 100, and the black bag opening is placed towards the side closer to the equipment outlet 10.

[0057] The following explanation uses the second stacking stroke for clamping the second packaging bag group 925 as an example. After the clamping head 210 of the clamping mechanism 200 completes the stacking of the first packaging bag group 915, the clamping head 210 of the clamping mechanism 200 moves from the previous process to the equipment exit end 10 to clamp the bag opening (black part) of the second packaging bag group 925. This is the second clamping stroke. After clamping the second packaging bag group 925, it first moves along the second upward stroke 921. After rising to a predetermined height, it moves horizontally along the second horizontal movement stroke 922. After moving to the second predetermined position, it moves along the second downward movement stroke 923, and then moves towards the second stacking stroke 924 so that the second packaging bag group 925 is placed horizontally above the first packaging bag group 915, and the black bag opening faces away from the equipment exit end 10. After completing the first and second stacking, the two groups of packaging bags are stacked vertically in sequence, with the bag openings and bottoms stacked in opposite directions.

[0058] More specifically, in this embodiment, the horizontal drive assembly 220 includes a horizontal drive unit 221, a horizontal guide unit 222, and a horizontal moving seat 223 as a horizontal movable part. The horizontal guide unit 222 extends in the horizontal direction and is fixed at one end to the frame. The horizontal moving seat 223 is translatably disposed on one side of the horizontal guide unit 222 in the horizontal direction. The horizontal drive unit 221 is fixed on the horizontal guide unit 222 and can drive the horizontal moving seat 223 to reciprocate in the horizontal direction on the horizontal guide unit 222.

[0059] In a preferred embodiment disclosed in this example, the horizontal drive unit 221 is configured as a drive motor and works in conjunction with a conveyor belt arranged in the horizontal direction. The horizontal moving seat 223 is fixedly disposed at one end of the conveyor belt. The horizontal guide unit 222 is preferably configured as a horizontal guide rail, and the horizontal moving seat 223 is slidably disposed on the horizontal guide rail. With this structural design, since the horizontal drive component 220 only needs to achieve horizontal reciprocating motion, the drive motor, the conveyor belt and the horizontal moving seat 223 can work together to achieve this.

[0060] It should be noted that, in this embodiment, as described in the first and second stacking processes and Figures 2-4, the vertical travel distance of the vertical drive assembly 230 disclosed in this application needs to be changed and adjusted. In different stacking processes, the vertical drive assembly 230 drives the clamping head 210 to move different distances in the vertical direction. Therefore, in this embodiment, the vertical lifting plate 233 and the auxiliary vertical lifting plate 235 work together. Specifically, the vertical lifting plate 233 has a first vertical travel distance. When the vertical lifting plate 233 moves to its limit position along the first vertical travel distance, the auxiliary vertical lifting plate 235 can move relative to the vertical lifting plate 233 in the vertical direction... The vertical lifting plate 233 and the auxiliary vertical lifting plate 235 are controlled by a vertical transmission belt 234 in this embodiment, making the structure simpler and more compact. Through the cooperation of the vertical lifting plate 233, the auxiliary vertical lifting plate 235 and the vertical transmission belt 234, different actions such as suspension, vertical limit displacement and vertical adjustment displacement can be realized when the clamping head 210 clamps the packaging bag group 101 in the vertical direction. This allows the clamping head 210 to clamp the packaging bag group 101 to complete reverse cross-stacking and stacking actions at different heights, such as the first stacking and the second stacking. This allows the bag opening and bag bottom to be stacked alternately during the two adjacent stacking processes, and the packaging bags are lifted and stacked sequentially in the vertical direction.

[0061] Please refer to Figures 2 and 3. The vertical drive assembly 230 includes a connecting seat 231, a vertical drive unit 232, a vertical lifting plate 233, and a vertical transmission belt 234. One side of the connecting seat 231 is fixed to the end of the horizontal moving seat 223 away from the horizontal guide unit 222. The vertical lifting plate 233 is movably disposed on the other side of the connecting seat 231. The output end of the vertical drive unit 232 is connected to the vertical transmission belt 234. The vertical transmission belt 234 extends vertically and is disposed on one side of the vertical lifting plate 233. The vertical lifting plate 233 is fixedly connected to one side belt body 2341 of the vertical transmission belt 234 via a connecting plate 2343 and can move vertically along with the one side belt body 2341 of the vertical transmission belt 234.

[0062] Furthermore, the vertical drive assembly 230 also includes an auxiliary vertical lifting plate 235. The auxiliary vertical lifting plate 235 is disposed between the vertical lifting plate 233 and the horizontal moving seat 223, parallel to and spaced apart from the vertical lifting plate 233, and can slide relative to it in the vertical direction. The auxiliary vertical lifting plate 235 is fixedly connected to the belt body 2342 on the other side of the vertical transmission belt 234 through an auxiliary connecting plate 2344. The end of the auxiliary connecting plate 2344 away from the vertical transmission belt 234 is fixedly connected to the horizontal moving seat 223. The vertical drive unit 232 is fixed to the end of the auxiliary vertical lifting plate 235 away from the clamping assembly.

[0063] In this embodiment, the vertical drive unit 232 is preferably configured as a vertical drive motor, and the output end of the vertical drive motor is connected to the vertical transmission belt 234. That is, the vertical drive motor will drive the vertical transmission belt 234 to rotate. Specifically, when the vertical transmission belt 234 rotates a certain distance and causes the vertical lifting plate 233 to descend to a predetermined position, for example, when the connecting plate 2343 moves to the limit position of one side of the belt body 2341, since one side of the horizontal moving seat 223 is fixed to the end of the horizontal moving seat 223 away from the horizontal guide unit 222, when the drive motor continues to rotate, the auxiliary vertical lifting plate 235 will continue to rise and fall relative to the vertical lifting plate 233, thereby making the vertical drive assembly 230 drive the clamping head 210 to move a greater distance in the vertical direction and the moving distance is adjustable.

[0064] Furthermore, it should be noted that conventional transmission belt connection methods can only achieve a conveying length that is the same as the length of one side of the conveyor belt, such as the horizontal transmission belt in this embodiment. In this embodiment, however, a vertical lifting plate 233 and an auxiliary vertical lifting plate 235 are respectively connected to the belt body on different sides of the vertical transmission belt 234, as shown in Figure 2. The vertical lifting plate 233 is fixedly connected to one side of the belt body 2341 via a connecting plate 2343, and the auxiliary vertical lifting plate 235 is fixedly connected to the other side of the belt body 2342 via an auxiliary connecting plate 2344. This structure allows the vertical lifting plate 233 and the auxiliary vertical lifting plate 235 to move vertically a distance equal to the length of the vertical transmission belt 234. Therefore, the maximum stroke achievable by the entire vertical drive assembly 230 is greater than the length of a single side of the conveyor belt. Furthermore, the vertical lifting plate 233 and the auxiliary vertical lifting plate 235 can slide and engage with each other, offering greater freedom and a wider range of applications to meet the clamping and stacking needs of packaging bags.

[0065] Further, referring to Figure 3, a first guide component 236 extending vertically is provided between the opposing surfaces of the auxiliary vertical lifting plate 235 and the horizontal moving seat 223, and a second guide component 237 extending vertically is provided between the opposing surfaces of the auxiliary vertical lifting plate 235 and the vertical lifting plate 233. Specifically, both the first guide component 236 and the second guide component 237 can be configured as, for example, a slide rail, a guide rail, or a guide groove. In a preferred implementation disclosed in this embodiment, both the first guide component 236 and the second guide component 237 include a guide groove extending vertically and a guide protrusion adapted to the guide groove. With this structure, the movement of the horizontal moving seat 223 along the vertical direction can be more stable and reliable.

[0066] The clamping assembly includes a swinging part 211 and a clamping head 210. In this embodiment, when the packaging bag group 101 is clamped from the equipment outlet end 10, the packaging bag group 101 is placed in a vertical direction. However, when it is stacked on the placement platform 100, the packaging bag group 101 is placed in a horizontal direction. Therefore, the swinging part 211 is preferably provided in this application. After the clamping head 210 clamps the packaging bag group 101, when the packaging bag group 101 is stacked along the stacking stroke, the swinging part 211 drives the clamping head 210 to swing 90 degrees, so that the bag opening of the packaging bag group 101 changes from a vertical state to a horizontal state. That is to say, the swinging part 211 is swingably provided at the lower end of the vertical lifting plate 233, and the clamping head 210 is provided at the lower end of the swinging part 211. The clamping head 210 can switch between an open state and a clamping state. The swinging part 211 can swing within an angle range of -90° to +90° relative to the vertical direction.

[0067] It should be noted that in this embodiment, the swinging part 211 can swing from -90° to +90° relative to the vertical direction, which refers to different swing angles. For example, when the swinging part 211 swings 90° to the left, it is +90°, and when the swinging part 211 swings 90° to the right, it is -90°. More specifically, for example, after the clamping head 210 switches to the clamping state to clamp the packaging bag group 101, when the packaging bag group 101 is stacked in the horizontal direction, when the stacked packaging bag group 101 is moved along the direction to the right, the swinging part 211 swings 90° to the left, so that the bag opening faces to the right. When the stacked packaging bag group 101 is moved along the direction to the left, the swinging part 211 swings 90° to the right, so that the bag opening faces to the left. This achieves that the bag openings and bottoms of two adjacent packaging bag groups 101 are placed in a sequentially overlapping manner.

[0068] Furthermore, to improve the stability of stacking packaging bags within the stacking space, the packaging bag packaging system disclosed in this embodiment also includes a bag limiting mechanism 800. The bag limiting mechanism 800 includes a first limiting frame and a second limiting frame extending upwards from the placement platform 100. The first and second limiting frames are spaced apart from each other along the horizontal conveying direction of the horizontal conveying stroke, defining a stacking space for placing the packaging bags. Additionally, in the horizontal conveying direction, a first auxiliary support plate and a second auxiliary support plate are respectively provided on the outer sides of the first and second limiting frames. The first and second auxiliary support plates are fixedly mounted on the placement platform 100 and are inclined towards the stacking space from the placement platform 100 along the horizontal conveying direction.

[0069] The interval between the first limiting frame and the second limiting frame of the bag limiting mechanism 800 disclosed in this embodiment is at least greater than the length between the opening and the bottom of each packaging bag. Preferably, in this embodiment, the interval between the first limiting frame and the second limiting frame is 5 to 10 cm greater than the length of the packaging bag. This can limit the packaging bag without interfering with it.

[0070] More specifically, in this embodiment, the first and second limiting frames can also be raised and lowered relative to the top surface of the placement platform 100. The first and second limiting frames disclosed in this application operate independently, and in two adjacent clamping and stacking actions, the first and second limiting frames are raised sequentially in a staggered manner. In each clamping and stacking action, before the clamping mechanism 200 clamps a group of packaging bags 101 into the stacking stroke, one of the first and second limiting frames on the side where the current stacking stroke begins is raised vertically relative to the placement platform 100 until its top is higher than the other limiting frame and the height of the topmost packaging bag in the current stacking space. That is to say, no matter which direction the packaging bag group 101 is moved and stacked, the limiting frame on the corresponding side must be at least higher than the limiting frame on the other side and also higher than the height of the packaging bag. Furthermore, the first and second limiting frames can be driven to rise and fall by a drive cylinder, linear motor, or other drive unit. This embodiment does not specifically limit this.

[0071] Next, let's continue with Figure 2 and use the first and second stacking of packaging bag group 101 as examples for explanation:

[0072] A first limiting frame is set on the left side, with a first auxiliary support plate on the left side of the first limiting frame. A second limiting frame is set on the right side, with a second auxiliary support plate on the right side of the second limiting frame. When the first stacking stroke 914 of the first stacking is pointing to the left, when the clamping head 210 clamps the packaging bag group 101 and moves to the left, the first limiting frame is first raised to a certain height (e.g., any value within 5-15cm). Then, as the clamping head 210 clamps the packaging bag group 101 and moves to the left, the bottom of the packaging bag will first pass through the inclined first auxiliary support plate in a brushing motion, so that the packaging bag group 101 is in an inclined state, with the bag opening located on the right side of the bag bottom and the height of the bag opening higher than the height of the bag bottom. Then the bag bottom passes through the first limiting frame in a brushing motion. Through this structural design, it can be ensured that a group of packaging bags 101 are all stacked horizontally on the placement platform 100 in a flat posture, and the packaging bags will not produce wrinkles or unevenness.

[0073] When the direction of the second stacking stroke 924 of the second stacking is to the right, as the clamping head 210 clamps the packaging bag group 101 and moves to the right, the second limiting frame needs to be raised to a higher height beforehand (e.g., any value within 30-45cm). For example, before the second stacking, the height of the first limiting frame and the already stacked first group of packaging bag groups 101 are roughly the same, both 15cm. At this time, the height that the second limiting frame needs to be raised should be at least higher than the top surface of the first group of packaging bag groups 101 and the height of the first limiting frame, in order to meet the requirement that the second limiting frame can lift the bottom of the second group of packaging bag groups 101. To achieve a smoothing effect, similarly, as the clamping head 210 clamps the packaging bag group 101 and moves it to the right, the bottom of the packaging bag will first pass through the inclined second auxiliary support plate in a brushing motion, so that the packaging bag group 101 is in an inclined state, with the bag opening located on the left side of the bag bottom and the height of the bag opening higher than the height of the bag bottom. Then the bag bottom passes through the second limiting frame in a brushing motion. Through this structural design, it can be ensured that the second group of packaging bag groups 101 are all horizontally stacked on top of the first group of packaging bag groups 101 in a flat posture, and the bag opening and bag bottom face opposite directions to balance the problem of inconsistent thickness between the bag opening and bag bottom.

[0074] Furthermore, this embodiment also discloses a packaging bag packing system, including a base plate placement mechanism 700. In this embodiment, the base plate placement mechanism 700 is used to place a receiving base plate on the placement platform 100 before stacking the packaging bags to form a stack. Then, during the stacking process, the packaging bags are placed on the receiving base plate. Specifically, in this embodiment, placing the receiving base plate has the advantage of enhancing the stability of the packaging bag stack, making it less likely for the packaging bags to tip over or slide during the stacking process. The receiving base plate can distribute the pressure on the bottom of the packaging bags, preventing the packaging bags from breaking due to excessive local pressure. At the same time, the base plate can also prevent direct friction between the packaging bags and the placement platform 100, reducing wear on the packaging bags. Further, the receiving base plate can also enhance the overall structural strength of the packaging bag stack, reducing damage and scattering of the packaging bags caused by bumps and vibrations during transportation. At the same time, the base plate can also serve as a fixed fulcrum for the transportation vehicle, ensuring the stability and safety of the packaging bag stack during transportation.

[0075] The base plate placement mechanism 700 disclosed in this embodiment includes a base plate placement space located on one side of the placement platform 100 and a base plate placement assembly. One end of the base plate placement assembly is fixed to the frame, and the other end can reciprocate between the base plate placement space and the placement platform 100. The base plate placement assembly includes a placement swing arm 710 and an adsorption assembly 720. One end of the placement swing arm 710 is fixed to the frame and above the placement platform 100, and the adsorption assembly 720 is disposed at the other end of the placement swing arm 710. The placement swing arm 710 can drive the adsorption assembly 720 to reciprocate between the base plate placement space and the placement platform 100. Multiple receiving base plates are stacked within the base plate placement space. The adsorption assembly 720 adsorbs the outermost of the multiple receiving base plates. The placement swing arm 710 drives the adsorption assembly 720 and the receiving base plate to swing, laying the receiving base plate flat in the stacking space on the placement platform 100. Packaging bags are stacked on the receiving base plates.

[0076] Specifically, in this embodiment, the placement arm 710 can be configured to work in conjunction with a motor and a connecting rod to achieve the reciprocating movement and placement of the arm, or it can be configured to work in conjunction with a motor, a cam, and a rotating shaft to achieve the reciprocating movement and movement of the arm, or it can be configured to work in conjunction with a drive cylinder, a cam, and a connecting rod to achieve the reciprocating movement and placement of the arm. This embodiment does not make any specific limitations on this.

[0077] More specifically, in this embodiment, the adsorption component 720 is preferably configured as a suction nozzle, and multiple suction nozzles are arranged at intervals, such as 4, 6, 8 or other numbers. By setting the adsorption component 720 and the placement swing arm 710 to work together, the automatic gripping, swinging and flattening of the receiving base plate can be realized, which greatly improves the automation level of the operation. The adsorption component 720 can accurately adsorb the outermost one of the multiple receiving base plates, ensuring that the target can be accurately selected in each operation. The swing arm further ensures that the receiving base plate is accurately laid flat at the designated position of the placement platform 100, realizing precise positioning.

[0078] The specific structure of the film-covering mechanism 300 of the packaging bag packing system disclosed in this application will be described in detail below:

[0079] Please refer to Figures 1 and 5. The laminating mechanism 300 includes a storage assembly 310 (shown in Figure 1), a film-laying support 320, and a cutting assembly 330. The storage assembly 310 includes a storage frame 311, a storage roller 312, and a conveying roller 313. The storage roller 312 is disposed within the storage frame 311, and a protective film roll is fixedly sleeved on the storage roller 312. The conveying roller 313 is disposed on one side of the storage roller 312 and conveys the protective film. The storage frame 311 is the supporting structure of the storage assembly 310, used to fix and support the storage roller 312 and the conveying roller 313, and to protect the protective film roll within the storage frame 311. The design of the storage roller 312 allows the protective film roll to rotate and unfold smoothly, facilitating subsequent conveying and use. The conveying roller 313 drives the protective film to unfold from the storage roller 312 by rotation, conveying it to the designated position and laying it on the conveying path of the packaging bag stacking. In this embodiment, the film laying support 320 is preferably set as a tripod, which has the advantage of more stable structure.

[0080] The film-laying support 320 is fixedly mounted on the conveying mechanism 500 and located on the transport path of the packaging bag stacking. Below the film-laying support 320 is a film-coating channel 340 through which the packaging bag stacking passes. The protective film passes sequentially through the conveying roller 313 and is laid on the film-laying support 320. The protective film on the film-laying support 320 vertically covers the film-coating channel 340, and when the packaging bag stack is conveyed through the film-coating channel 340, the protective film covers the outer periphery of the packaging bag stack. Specifically, the protective film on the film-laying support 320 vertically covers the film-coating channel 340, forming a closed or nearly closed packaging space. When the packaging bag stack is conveyed to the film-coating channel 340, the protective film automatically covers the outer periphery of the packaging bag stack, achieving the packaging purpose. Through the cooperation of the conveying mechanism 500 and the film-laying support 320, the automatic laying and covering of the protective film is realized, greatly improving packaging efficiency. The protective film can tightly cover the outer perimeter of the stacked packaging bags, providing effective protection against damage during transportation or storage.

[0081] The cutting assembly 330 is located downstream of the film-laying support 320. After the packaging bags are stacked and pass through the film-covering channel 340 and covered with the protective film, the cutting assembly 330 cuts the protective film on the upstream and downstream sides of the packaging bag stack in the conveying direction. The cutting assembly 330 includes a cutter support, a transverse cutter, and a drive unit. The cutter support spans the conveying path downstream of the film-laying support 320, providing stable support for the transverse cutter. The transverse cutter is connected to the drive unit, which drives the transverse cutter to reciprocate vertically. A liftable pressing plate 350 is also provided downstream of the cutter support. The drive unit can be a drive cylinder, drive motor, transmission belt, linear motor, or other components capable of reciprocating movement; in this embodiment, a drive cylinder is preferred. Through the cooperation of the transverse cutter and the drive unit, the cutting assembly 330 achieves precise cutting of the protective film. The cutting process is smooth and rapid, ensuring the accuracy and consistency of the cutting position, and exhibiting high efficiency and automation.

[0082] Furthermore, a pressing plate 350 is also provided. The function of the pressing plate 350 is to press the protective film firmly onto the stack of packaging bags before cutting, and to prevent the stack of packaging bags from shaking or shifting during the cutting process. Pressing the stack of packaging bags with the pressing plate 350 before cutting also helps to protect the stack of packaging bags from damage, ensuring its integrity and stability. The pressing plate 350 is preferably controlled by a pressing cylinder, and the pressing speed and pressing force can be adjusted.

[0083] Furthermore, in this embodiment, the storage rack 311 is located on one side of the transport path of the packaging bag stacking, and the transport direction of the protective film is perpendicular to the direction of the transport path of the packaging bag stacking. With this arrangement, the protective film unfolds from the storage rack 311 and is transported along a specific direction to the film-laying support 320. This arrangement ensures that the protective film is laid flat on the transport path of the packaging bag stacking, thereby guaranteeing that the packaging bag stacking can be automatically covered with film when passing the film-laying support 320. The film-laying support 320 includes an inclined guide frame spanning the transport path. The length of the inclined guide frame is greater than the width of the transport path, ensuring that the protective film can completely cover the entire transport path. The protective film is wrapped around the inclined guide frame and laid on the transport path of the packaging bag stacking, and the width of the protective film is greater than the width of the transport path. Through this arrangement, the protective film can fully cover the packaging bag stacks along the entire transport path, ensuring that each packaging bag stack is adequately protected during transport. This design is highly flexible and can adapt to stacks of packaging bags of different sizes and shapes. By adjusting the position of the tilting guide and the protective film, it can be ensured that the protective film can fit tightly against the outer perimeter of the stack of packaging bags.

[0084] The following is a detailed explanation of the heat sealing system for packaging bags disclosed in this application:

[0085] As shown in Figure 1, in one feasible embodiment, the heated sealing mechanism 400 includes a heated sealing chamber 410. The heated sealing chamber 410 includes a sealing inlet 420 and a sealing outlet 430 spaced apart along a conveying path. The heated sealing chamber 410 provides a closed or semi-closed environment for heating and sealing the protective film. Inside the chamber, a heating unit transfers heat to the protective film and the stacked packaging bags, bringing them to the temperature required for heat sealing. The stacked packaging bags enter through the sealing inlet 420 within the heated sealing chamber 410 and exit through the sealing outlet 430. The heating unit is located within the heated sealing chamber 410, and a conveying mechanism extends from the sealing inlet 420 to the sealing outlet 430. Preferably, the conveying mechanism is configured as conveyor rollers extending sequentially within the heated sealing chamber 410. The heated sealing mechanism 400 is a crucial component of the automated packaging system, responsible for tightly securing the protective film to the stacked packaging bags, providing additional protection and stability. Through the coordinated operation of the heat-sealing chamber, heating unit, and transmission mechanism, the protective film is heated, sealed, and fixed on the stack of packaging bags. The heat-sealing chamber 410 disclosed in this application has significant effects such as transmission stability, precise control, adaptability, and ease of maintenance.

[0086] It should be further noted that the conveying mechanism 500 includes a first conveying mechanism 510 and a second conveying mechanism 520. The first conveying mechanism 510 extends from the placement platform 100 to the outlet of the laminating mechanism 300, and the second conveying mechanism 520 extends from the outlet of the laminating mechanism 300 through the heating and sealing mechanism 400. It also includes a third conveying mechanism 530, which conveys the material from the heating and sealing mechanism 400 to the labeling mechanism 600.

[0087] The first conveying mechanism 510 includes a conveying drive unit, a conveying guide unit 511, and a pressing and pushing component. Please refer to Figure 6. The conveying guide unit 511 extends from one side of the placement platform 100 toward the side of the film coating mechanism 300. The conveying drive unit (not shown in the figure) can drive the pressing and pushing component to move back and forth along the conveying guide unit 511. Preferably, the conveying drive unit is configured as a drive motor, and the conveying guide unit 511 is configured as a conveyor belt. The drive motor drives the conveyor belt to move back and forth, which can drive the pressing and pushing component. The pressing and pushing assembly includes a sliding seat 512, a support part 514, and a pressing rod 513. The sliding seat 512 is connected to the conveyor belt. The support part 514 is fixedly mounted on the sliding seat 512. A pressing cylinder is also mounted on the support part 514. The pressing rod 513 is mounted at the end of the pressing cylinder. In this embodiment, two sets of pressing rods 513 are provided. When the pressing and pushing assembly needs to press and push the packaging bags stack, the sliding seat 512 first drives the support part 514 and the pressing rod 513 to slide to one side of the packaging bag stack. Then, the pressing cylinder drives the pressing rod 513 downward to press the packaging bag stack downward. This can reduce the gap between the packaging bags, making the packaging bag stack more compact, facilitating movement and transportation, and reducing the volume of the packaging bag stack.

[0088] The second conveying mechanism 520 and the third conveying mechanism 530 include a conveyor belt, one end of which is located at the outlet of the laminating mechanism 300, and the other end extends out of the outlet of the heating and sealing mechanism 400.

[0089] The labeling mechanism 600 in the packaging bag packing system disclosed in this application will be explained below. The labeling mechanism 600 includes a labeling bracket and a labeling conveyor belt. The labeling conveyor belt is conveyably mounted on the labeling bracket, and multiple labels are affixed to the conveyor belt at intervals. When the packaging bag stack is conveyed to the labeling bracket, one of the labels is affixed to the protective film on the surface of the packaging bag stack. Specifically, the labeling conveyor belt is a conveyable device that can move on the labeling bracket to convey and position the labels. When the packaging bag stack reaches the labeling position, the labeling conveyor belt moves precisely to ensure that one of the labels is aligned with the protective film on the surface of the packaging bag stack. The labeling mechanism 600 preferably uses adhesive to ensure that the label is firmly affixed to the protective film. Once the label is affixed, the labeling conveyor belt may continue to move to prepare the next label for the next packaging bag stack. Labeling the packed packaging bag stack provides key information about the packaging bags, which helps in product identification, tracking, and management.

[0090] In summary, the packaging system for the bags disclosed in this application will be explained in more detail. In a preferred embodiment of this application, the packaging system includes a placement platform 100, a base plate placement mechanism 700, a clamping mechanism 200, a bag limiting mechanism 800, a film covering mechanism 300, a heat sealing mechanism 400, a labeling mechanism 600, and a conveying mechanism 500. The clamping mechanism 200, the film covering mechanism 300, the heat sealing mechanism 400, and the labeling mechanism 600 are arranged sequentially at intervals along the packaging direction. Adjacent mechanisms are connected by the conveying mechanism 500, which transports and stacks the packaging bags from the upstream mechanism to the downstream mechanism. Wherein:

[0091] The base plate placement mechanism 700 is located on one side of the clamping mechanism 200, and its operation will not interfere with the clamping mechanism 200 due to misalignment. The base plate placement mechanism 700 includes a placement swing arm 710 and an adsorption component 720. The base plate placement mechanism 700 is used to place a receiving base plate on the placement platform 100 before the packaging bags are stacked to form a packaging bag stack, and then place the packaging bags on the receiving base plate during the stacking process. The clamping mechanism 200 includes a horizontal drive component 220, a vertical drive component 230, and a clamping component. The horizontal drive component 220 drives the horizontal movable part, the vertical drive component 230, and the clamping component to move horizontally. The vertical drive component 230 drives the vertical movable part and the clamping component to move vertically. The vertical drive component 230, through the cooperation of the vertical lifting plate 233, the auxiliary vertical lifting plate 235, and the vertical transmission belt 234, can achieve a larger vertical stroke and vertical movement, so that the bag opening and bag bottom are alternately stacked in adjacent stacking processes. The bag limiting mechanism 800 includes a first limiting frame and a second limiting frame extending upward from the placement platform 100, as well as a first auxiliary support plate and a second auxiliary support plate located outside the first and second limiting frames, which work together to assist in stacking the packaging bag group 101 and forming a packaging bag stack. The laminating mechanism 300 includes a storage assembly 310, a film laying support 320, and a cutting assembly 330. The protective film output from the storage assembly 310 is laid on the film laying support 320. When the packaging bag stack is conveyed through the laminating channel 340, the protective film covers the outer periphery of the packaging bag stack. The cutting assembly 330 is located downstream of the film laying support 320. After the packaging bag stack passes through the laminating channel 340 and is covered with the protective film, the cutting assembly 330 cuts the protective film on the upstream and downstream sides of the packaging bag stack in the conveying direction. The heated sealing chamber 410 is located downstream of the laminating mechanism 300. The heated sealing chamber 410 provides a closed or semi-closed environment for heating and sealing the protective film. Downstream of the heated sealing chamber 410 is a labeling mechanism 600, which finally labels the outer surface of the protective film.

[0092] Next, the packaging process of the packaging bag packaging system disclosed in this application will be further explained:

[0093] First, the placement platform 100 and the clamping mechanism 200 are located on the side near the equipment outlet 10. In this embodiment, the clamping head 210 of the clamping mechanism 200 clamps 20 packaging bags at a time as an example. Before the clamping head 210 of the clamping mechanism 200 clamps the packaging bag group 101, the adsorption component 720 of the bottom plate placement mechanism 700 adsorbs the outermost receiving bottom plate in the bottom plate placement space and lays the receiving bottom plate flat in the stacking space on the placement platform 100 (located between the first limiting frame and the second limiting frame). At this time, the first limiting frame and the second limiting frame are located below the placement platform 100.

[0094] Then, the clamping mechanism 200 begins to clamp and stack the first group of packaging bags 101. The stroke of the first stacking process is shown by the dotted arrow in Figure 4. The clamping head 210 clamps the opening of the first group of packaging bags 915 from the equipment outlet, moves upward to a predetermined height, and then moves horizontally for a first horizontal movement stroke 912. After moving to the first predetermined position, it moves along a first downward movement stroke 913, and then moves towards the first stacking stroke 914 (to the left in the figure) so that the first group of packaging bags 915 is placed horizontally on the placement platform 100. Before the first stacking stroke 914, the first limiting frame on the left side is raised to a certain height. The bottom of the packaging bag will pass through the inclined first auxiliary support plate in a brushing posture, so that the packaging bag group 101 is in an inclined state, with the opening of the bag located on the right side of the bottom of the bag, and the height of the opening of the bag is higher than the height of the bottom of the bag. Then the bottom of the bag passes through the first limiting frame in a brushing posture to ensure that the group of packaging bags are all stacked horizontally on the placement platform 100 in a flat posture.

[0095] After the clamping head 210 completes the first clamping and stacking, it begins to clamp the second packaging bag group 925. The stacking stroke of the second packaging bag group 925 is shown by the solid arrow in the figure. The clamping head 210 of the clamping mechanism 200 moves from the previous process to the equipment outlet end 10 to clamp the bag opening of the second packaging bag group 925. Then, it moves along the second upward stroke 921. After rising to a predetermined height, it moves along the second horizontal stroke 922. After moving to the second predetermined position, it moves along the second downward stroke 923. Then, it moves towards the second stacking stroke 924 so that the second packaging bag group 925 is placed horizontally above the first packaging bag group 915, and the black bag opening is placed facing away from the equipment outlet end 10. Then, the above steps are repeated, for example, 3 times, 4 times or more, so that the bag opening and bag bottom of any two adjacent packaging bag groups 101 are opposite in direction. It should be noted that before the second stacking, the height of the first limiting frame and the first set of stacked packaging bags are roughly the same. At this time, the height of the second limiting frame should be at least higher than the top surface of the first set of packaging bags and the height of the first limiting frame in order to ensure that the second limiting frame can smooth the bottom of the second set of packaging bags. Therefore, the first limiting frame and the second limiting frame are raised in a staggered manner in sequence.

[0096] For example, in this packaging process, four sets of packaging bags are stacked. After the packaging bags are stacked, the first conveying mechanism 510 moves to one side of the packaging bag stack, and the two pressing rods 513 of the pressing and pushing component press the packaging bag stack downwards, pushing the packaging bag stack and the receiving base plate together towards the laminating mechanism 300. During the conveying process, the first and second limiting frames descend below the placement platform 100 to avoid interference. When the packaging bag stack is conveyed through the laminating channel 340, the protective film covers the outer perimeter of the packaging bag stack. The cutting component 330 is located downstream of the film-laying support 320. After the packaging bag stack passes through the laminating channel 340 and is covered with the protective film, the cutting component 330 cuts the protective film on the upstream and downstream sides of the packaging bag stack in the conveying direction. The protective film is then conveyed to the entrance of the heating and sealing chamber 410 via a conveyor belt. Inside the heating and sealing chamber 410, there are conveyor rollers and heating units such as heating rods and heating plates. When the conveyor rollers push the packaging bags to move, the protective film is heated and sealed. Finally, it is conveyed to the labeling mechanism 600 to affix labels to the outer layer of the protective film.

[0097] Example 2

[0098] This embodiment discloses a packaging bag packing method, which is applied to the packaging bag packing system of any one of Embodiment 1. Please refer to Figure 7. The method includes:

[0099] S1. The clamping mechanism 200 clamps a packaging bag group 101 from the equipment outlet end 10 of the packaging bag forming equipment. The clamping mechanism 200 clamps and transfers the packaging bag group 101 to the upper part of the placement platform 100, and stacks the packaging bag group 101 on the placement platform 100 along the first horizontal direction.

[0100] S2. The clamping mechanism 200 returns to the equipment outlet end 10, clamps the new packaging bag group 101 and moves the new packaging bag group 101 to the top of the placement platform 100, and stacks the packaging bag group 101 on top of the existing packaging bag group 101 on the placement platform 100 in a second horizontal direction opposite to the first horizontal direction.

[0101] S3. Repeat steps S1 and S2 until a stack of packaging bags of a predetermined height is formed. The stack of packaging bags is formed by stacking multiple groups of packaging bags 101 in sequence in the vertical direction. In the stack of packaging bags, the openings of the bags in the same group of packaging bags 101 are located on the same side in the vertical direction. In two adjacent groups of packaging bags 101, the openings and bottoms of the bags are located on opposite sides in the vertical direction.

[0102] S4. The conveying mechanism 500 conveys the packaging bag stack along the conveying path to the downstream film-coating mechanism 300. The film-coating mechanism 300 receives the packaging bag stack from the placement platform 100 and covers the outer periphery of the packaging bag stack with a protective film. The cutting component 330 of the film-coating mechanism 300 cuts the protective film of the packaging bag stack on the upstream and downstream sides of the conveying direction.

[0103] S5. The conveying mechanism 500 transports the stacked packaging bags covered with protective film to the heating and sealing chamber 410, where the protective film is heated to seal the stacked packaging bags.

[0104] Furthermore, regarding the above-mentioned packaging method, the following steps are included before step S1:

[0105] S0. A receiving base plate is laid flat on the placement platform 100; and in step S1, the clamping mechanism 200 stacks a packaging bag group 101 on the receiving base plate. It should be noted that after performing step S0, in step S1, the clamping mechanism 200 stacks a packaging bag group 101 on the receiving base plate.

[0106] Furthermore, regarding the above-mentioned packaging method, after step S5, the following steps are also included:

[0107] S6. The sealed packaging bags are stacked and transported to the labeling mechanism 600, and the labeling mechanism 600 affixes labels to the outside of the sealed packaging bags.

[0108] The packaging bag packaging method disclosed in this application can achieve fully automated and efficient packaging, and can continuously perform clamping and stacking actions, ensuring continuous operation of the production line. Combined with the production speed and capacity of high-speed packaging bag forming equipment, it can quickly package the produced packaging bags.

[0109] It should be noted that, in addition to the specific embodiments described above, those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention is presented in conjunction with preferred embodiments, this does not mean that the features of the invention are limited to these embodiments. On the contrary, the purpose of describing the invention in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of the present invention. To provide a deep understanding of the invention, many specific details are included in the above description, and the invention may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of the invention, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0110] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0111] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of the invention is usually placed in during use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0112] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0113] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0114] While the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the invention to these descriptions. Various changes in form and detail can be made by those skilled in the art, including several simple deductions or substitutions, without departing from the spirit and scope of the invention.

Claims

1. A packaging bag packing system characterized by comprising: The packaging bag packaging system is located downstream of the outlet end of the packaging bag forming equipment, and includes a placement platform, a clamping mechanism, a film covering mechanism, a heating and sealing mechanism, and a conveying mechanism; wherein The placement platform is located downstream of the outlet end of the equipment; The clamping mechanism is mounted on the frame and can reciprocate between the equipment outlet end and the placement platform to perform multiple clamping and stacking actions, so as to form a stack of packaging bags in the stacking space on the placement platform. The film-coating mechanism is located downstream of the placement platform in the packaging direction, receives the stack of packaging bags from the placement platform, and covers the outer periphery of the stack of packaging bags with a protective film. The heating and sealing mechanism is located downstream of the laminating mechanism in the packaging direction, and heats the protective film on the outer periphery of the packaging bag stack from the laminating mechanism so that the protective film is heated and seals the outer periphery of the packaging bag stack. The conveying mechanism sequentially transports the stacked packaging bags on the placement platform through the film-coating mechanism and the heat-sealing mechanism from the placement platform; wherein... In each clamping and stacking action, the clamping head of the clamping mechanism approaches the outlet end of the equipment, clamps a group of packaging bags, moves it above the placement platform, and horizontally stacks the group of packaging bags in the stacking space; wherein, the group of packaging bags is composed of a predetermined number of stacked packaging bags, and the stack of packaging bags is composed of multiple groups of packaging bags stacked sequentially in the vertical direction; and In the stack of packaging bags, within the same group of packaging bags, the openings of each bag are located on the same side in the vertical direction; and in two adjacent groups of packaging bags, the openings of each group are located on opposite sides in the vertical direction.

2. The bagging system of claim 1, wherein, The clamping mechanism includes a horizontal drive component, a vertical drive component, and a clamping component; wherein, One end of the horizontal drive assembly is fixed to the frame above the equipment outlet, and the other end extends horizontally to the top of the placement platform and has a horizontally movable part that can move horizontally. The vertical drive assembly is disposed on the horizontal movable part of the horizontal drive assembly and has a vertical movable part that can move in the vertical direction; the clamping assembly is disposed on the vertical movable part; and The horizontal driving component drives the horizontal movable part, and in conjunction with the vertical driving component and the clamping component, to move horizontally; the vertical driving component drives the vertical movable part, and in conjunction with the clamping component, to move vertically. Each clamping and stacking action includes a clamping stroke, a horizontal transfer stroke, and a stacking stroke; and in two adjacent clamping and stacking actions, the travel distance of the horizontal transfer stroke is different, and the direction of the stacking stroke is opposite.

3. The bagging system of claim 2, wherein, in The horizontal drive assembly includes a horizontal drive unit, a horizontal guide unit, and a horizontal moving seat as the horizontal movable part. The horizontal guide unit extends in the horizontal direction and is fixed at one end to the frame. The horizontal moving seat is translatably disposed on one side of the horizontal guide unit in the horizontal direction. The horizontal drive unit is fixed on the horizontal guide unit and can drive the horizontal moving seat to reciprocate on the horizontal guide unit in the horizontal direction. The vertical drive assembly includes a connecting seat, a vertical drive unit, a vertical lifting plate, and a vertical transmission belt; wherein, one side of the connecting seat is fixed to the end of the horizontal moving seat away from the horizontal guide unit, the vertical lifting plate is movably disposed on the other side of the connecting seat in the vertical direction, the output end of the vertical drive unit is drively connected to the vertical transmission belt, the vertical transmission belt extends in the vertical direction and is disposed on one side of the vertical lifting plate, the vertical lifting plate is fixedly connected to one side of the vertical transmission belt via a connecting plate and can move in the vertical direction with the one side of the vertical transmission belt; and The clamping assembly includes a swinging part and a clamping head. The swinging part is swingably disposed at the lower end of the vertical lifting plate, and the clamping head is disposed at the lower end of the swinging part. The clamping head can switch between an open state and a clamping state. The swinging part can swing within an angle range of -90° to +90° relative to the vertical direction.

4. The bagging system of claim 3, wherein, The vertical drive assembly further includes an auxiliary vertical lifting plate, which is disposed between the vertical lifting plate and the horizontal moving seat, parallel to and spaced apart from the vertical lifting plate, and can slide relative to it in the vertical direction. The auxiliary vertical lifting plate is fixedly connected to the other side of the vertical transmission belt via an auxiliary connecting plate, and the end of the auxiliary connecting plate away from the vertical transmission belt is fixedly connected to the horizontal moving seat. The vertical drive unit is fixed to the end of the auxiliary vertical lifting plate away from the clamping assembly; A first guide component extending in the vertical direction is provided between the opposing surfaces of the auxiliary vertical lifting plate and the horizontal moving seat, and a second guide component extending in the vertical direction is provided between the opposing surfaces of the auxiliary vertical lifting plate and the vertical lifting plate. Both the first guide component and the second guide component include a guide groove extending in the vertical direction and a guide protrusion adapted to the guide groove.

5. The bagging system of claim 2, wherein, It also includes a bag-body limiting mechanism, which comprises a first limiting frame and a second limiting frame extending upward from the placement platform. The first limiting frame and the second limiting frame are spaced apart from each other along the horizontal conveying direction of the horizontal conveying stroke, and the first limiting frame and the second limiting frame define a stacking space for placing the packaging bags. In the horizontal transfer direction, a first auxiliary support plate and a second auxiliary support plate are respectively provided on the outer side of the first limiting frame and the second limiting frame. The first auxiliary support plate and the second auxiliary support plate are fixedly installed on the placement platform, and the first auxiliary support plate and the second auxiliary support plate are inclined from the placement platform toward the stacking space along the horizontal transfer direction.

6. The packaging bag packing system according to claim 5, wherein The first limiting frame and the second limiting frame can also be raised and lowered relative to the top surface of the placement platform, wherein, in two adjacent clamping and stacking actions, the first limiting frame and the second limiting frame are raised in a staggered manner in sequence; wherein In each clamping and stacking action, before the clamping mechanism clamps a group of packaging bags into the stacking stroke, one of the first limiting frame and the second limiting frame on the side where the current stacking stroke begins is raised vertically relative to the placement platform until its top is higher in the vertical direction than the other limiting member and the height of the topmost packaging bag in the current stacking space.

7. The bagging system of claim 2, wherein, It also includes a base plate placement mechanism, which includes a base plate placement space located on one side of the placement platform and a base plate placement assembly. One end of the base plate placement assembly is fixed to the frame, and the other end can reciprocate between the base plate placement space and the placement platform. The base plate placement assembly includes a placement swing arm and an adsorption assembly. One end of the placement swing arm is fixed to the frame and above the placement platform, and the adsorption assembly is disposed at the other end of the placement swing arm. The placement swing arm can drive the adsorption assembly to reciprocate between the base plate placement space and the placement platform. Multiple base plates are stacked within the base plate placement space. The adsorption component adsorbs the outermost of the plurality of receiving base plates. The placement swing arm drives the adsorption component and the receiving base plate to swing, and lays the receiving base plate flat in the stacking space of the placement platform. The packaging bags are stacked on the receiving base plate.

8. The packaging bag packing system according to any one of claims 1 to 7, characterized in that, The film-coating mechanism includes a material storage assembly, a film-laying support, and a cutting assembly; wherein The storage assembly includes a storage frame, a storage roller shaft, and a conveying roller shaft. The storage roller shaft is disposed inside the storage frame, and a protective film roll is fixedly sleeved on the storage roller shaft. The conveying roller shaft is disposed on one side of the storage roller shaft and conveys the protective film. The film-laying support is fixedly mounted on the conveying mechanism and located on the transport path of the packaging bag stack. The film-laying support has a film-coating channel below it for the packaging bag stack to pass through. The protective film passes through the conveying rollers in sequence and is laid on the film-laying support. The protective film on the film-laying support covers the film-coating channel in the vertical direction. When the packaging bag stack is conveyed through the film-coating channel, the protective film covers the outer periphery of the packaging bag stack. The cutting assembly is located downstream of the film-laying support. After the packaging bags are stacked through the film-laying channel and covered with the protective film, the cutting assembly cuts the protective film on the upstream and downstream sides of the packaging bags stack in the conveying direction. The cutting assembly includes a cutter support, a transverse cutter, and a drive unit. in The cutter holder is positioned downstream of the film-laying support across the transport path. The transverse cutter is connected to the drive unit, which is capable of driving the transverse cutter to reciprocate vertically. A movable pressing plate is also provided on the downstream side of the cutter holder.

9. The bagging system of claim 8, wherein, The storage rack is located on one side of the conveying path of the packaging bags stacking, and the conveying direction of the protective film is perpendicular to the direction of the conveying path of the packaging bags stacking; wherein The film-laying support includes an inclined guide frame that spans the transport path, the length of which is greater than the width of the transport path; the protective film is wrapped around the inclined guide frame and laid on the transport path of the stacked packaging bags, and the width of the protective film is greater than the width of the transport path.

10. The bagging system of claim 8, wherein, The heated sealing mechanism includes a heated sealing chamber, which comprises a sealing inlet and a sealing outlet spaced apart along the transport path; wherein... The heating and sealing chamber is equipped with a heating unit, and the transmission mechanism inside the heating and sealing chamber extends from the sealing inlet to the sealing outlet.

11. The packaging bag packing system as described in claim 8, characterized in that, The conveying mechanism includes a first conveying mechanism and a second conveying mechanism. The first conveying mechanism extends from the placement platform to the outlet of the laminating mechanism, and the second conveying mechanism extends from the outlet of the laminating mechanism through the heating and sealing mechanism. The first conveying mechanism includes a conveying drive unit, a conveying guide unit, and a pressing and pushing component. The conveying guide unit extends from one side of the placement platform toward the side of the film coating mechanism. The conveying drive unit can drive the pressing and pushing component to reciprocate along the conveying guide unit. The second conveying mechanism includes a conveyor belt, one end of which is located at the outlet of the coating mechanism, and the other end extends out of the outlet of the heating and sealing mechanism.

12. The packaging bag packing system as described in claim 8, characterized in that, It also includes a labeling mechanism, which includes a labeling bracket and a labeling conveyor belt. The labeling conveyor belt is conveyably mounted on the labeling bracket, and multiple labels are affixed to the labeling conveyor belt at intervals. When the packaging bags are stacked and conveyed to the labeling bracket, one of the labels is affixed to the protective film on the surface of the packaging bags.

13. A method for packaging bags, characterized in that, The method is applied to the packaging bag packing system according to any one of claims 1 to 12, and the method includes: S1. The clamping mechanism clamps a group of packaging bags from the equipment outlet end of the packaging bag forming equipment, and the clamping mechanism clamps and transfers the group of packaging bags to the above the placement platform, and stacks the group of packaging bags on the placement platform along the first horizontal direction. S2. The clamping mechanism returns to the outlet end of the equipment, clamps the new packaging bag group and moves the new packaging bag group to above the placement platform, and stacks the packaging bag group on top of the existing packaging bag group on the placement platform along a second horizontal direction opposite to the first horizontal direction; S3. Repeat steps S1 and S2 until a stack of packaging bags of a predetermined height is formed, wherein the stack of packaging bags is formed by stacking multiple groups of packaging bags sequentially in the vertical direction; and in the stack of packaging bags, within the same group of packaging bags, the openings of the bags are located on the same side in the vertical direction; and in two adjacent groups of packaging bags, the openings and bottoms of each group are located on opposite sides in the vertical direction. S4. The conveying mechanism conveys the stack of packaging bags along the conveying path to the downstream film-coating mechanism. The film-coating mechanism receives the stack of packaging bags from the placement platform and covers the outer periphery of the stack of packaging bags with a protective film. The film-coating mechanism then cuts the protective film on the upstream and downstream sides of the stack of packaging bags in the conveying direction using the cutting component of the film-coating mechanism. S5. The conveying mechanism transports the stacked packaging bags covered with the protective film to the heating and sealing chamber, and heats the protective film to seal the stacked packaging bags.

14. The packaging method for packaging bags as described in claim 13, characterized in that, The following steps are included before step S1: S0. Lay the receiving base plate flat on the placement platform; and In step S1, the clamping mechanism stacks the packaging bag group on the receiving base plate.

15. The packaging method for packaging bags as described in claim 13, characterized in that, Following step S5, the following steps are also included: S6. The sealed packaging bags are stacked and transported to the labeling mechanism, and the labeling mechanism is used to affix labels to the outside of the sealed packaging bags.

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