Packaging bag packaging system and packaging bag packaging method

Abstract

The present invention discloses a packaging bag packing system and a packaging bag packing method. The packaging bag packing system is located downstream of the equipment outlet end of the packaging bag forming equipment, and includes a placement platform, a clamping mechanism, a laminating mechanism, a heating and plastic sealing mechanism, and a conveying mechanism. The clamping mechanism is arranged on a frame, and can reciprocate between the equipment outlet end and the placement platform to perform multiple clamping and stacking actions to form a packaging bag stack in the stacking space on the placement platform. The packaging bag stack is formed by stacking a plurality of packaging bag groups in sequence in the vertical direction. And in the same packaging bag group, the bag openings of each packaging bag are located on the same side in the vertical direction. In two adjacent packaging bag groups, the bag openings of each packaging bag group are respectively located on opposite sides in the vertical direction. The present invention can continuously perform clamping and stacking actions to quickly pack the produced packaging bags, and the alternating stacking of the bag bottoms is more stable.

Description

Technical Field

[0001] The present invention relates to the technical field related to bag sorting, and in particular to a packaging bag packing system and a packaging bag packing method. Background Art

[0002] Packaging bags refer to bags used to collect and pack goods. They are made of different materials, shapes, sizes and uses to meet the protection, storage, transportation and sales needs of different goods. Packaging bags play a vital role in modern commerce. They not only protect goods from damage, but also enhance the brand image and attract consumers' attention through design, printing and material selection.

[0003] In the prior art, after the packaging bags are formed by the packaging bag forming equipment, the packaging bags are output in an assembly line manner, for example, 30, 60, 120 or even more packaging bags are output per minute. However, after these packaging bags are produced, they need to be collected and packaged by manual picking. Even if some equipment can accumulate a certain number of packaging bags at the equipment outlet and then collect them, staff are still required to collect and package them. Therefore, each packaging bag forming equipment needs to be equipped with at least one staff member to collect and package the packaging bags. The packaging efficiency is low when the staff packs purely by physical labor, and packaging errors are prone to occur under high-intensity labor.

[0004] Therefore, in the prior art, the packaging bag forming equipment needs to be equipped with at least one worker to collect and pack the packaging bags, which has the problems of low packaging efficiency and poor packaging effect. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the packaging bag forming equipment in the prior art needs to be equipped with at least one staff member to collect and pack the packaging bags, resulting in low packaging efficiency and poor packaging effect.

[0006] In order to solve the above technical problems, the embodiment of the present invention discloses a packaging bag packaging system, which is located downstream of the device outlet of the packaging bag forming device, and includes a placement platform, a clamping mechanism, a film laminating mechanism, a heating and plastic sealing mechanism, and a conveying mechanism. The placement platform is located on the downstream side of the device outlet.

[0007] The clamping mechanism is arranged on the frame and can reciprocate between the equipment outlet and the placement platform to perform multiple clamping and stacking actions to form a stack of packaging bags in the stacking space on the placement platform.

[0008] The film covering mechanism is located downstream of the placing platform in the packaging direction, receives the packaging bag stack from the placing platform and covers the outer periphery of the packaging bag stack with a protective film.

[0009] The heating and plastic sealing mechanism is located downstream of the laminating mechanism in the packaging direction, and heats the protective film on the periphery of the packaging bag stack from the laminating mechanism so that the protective film is heated and plastic-sealed on the peripheral surface of the packaging bag stack.

[0010] The conveying mechanism passes through the laminating mechanism and the heating and plastic sealing mechanism in sequence from the placing platform, so as to convey the packaging bag stack on the placing platform through the laminating mechanism and the heating and plastic sealing mechanism in sequence.

[0011] In each clamping and stacking action, the clamping head of the clamping mechanism approaches the outlet end of the equipment, clamps a packaging bag group and moves to the top of the placement platform, and stacks a packaging bag group horizontally in the stacking space; wherein, a packaging bag group is formed by stacking a predetermined number of packaging bags, and the packaging bag stack is formed by stacking multiple packaging bag groups in sequence in the vertical direction. Moreover, in the packaging bag stack, in the same packaging bag group, the bag openings of each packaging bag are located on the same side in the vertical direction. Moreover, in two adjacent packaging bag groups, the bag openings of each packaging bag group are located on opposite sides in the vertical direction.

[0012] By adopting the above technical solution, the present application provides a fully automated and efficient packaging bag packaging system. The clamping mechanism moves back and forth between the equipment outlet and the placement platform to perform multiple clamping and stacking actions. It can continuously perform clamping and stacking actions, ensuring the continuous operation of the production line. In conjunction with the production speed and capacity of the high-speed packaging bag forming equipment, the packaging bags produced can be quickly packaged. Furthermore, the clamping mechanism can accurately control the clamping force and moving speed, thereby ensuring that the material is not damaged during the clamping and stacking process, thereby ensuring product quality. Since the clamping mechanism can operate according to a preset program, each clamping and stacking action is consistent, improving the consistency and stability of the product. It also saves labor costs and has higher safety performance.

[0013] More importantly, the packaging system provided by the present application can perform multiple clamping and stacking actions in one packaging process. Each time a group of packaging bags (consisting of multiple packaging bags) is clamped, and then multiple groups of packaging bags are stacked in sequence on the placement platform to form a packaging bag stack (multiple groups of packaging bags). Through such a design, a larger number of packaging bags can be stacked in one packaging bag stack. For example, one packaging bag group includes 20 packaging bags, and one packaging bag stack includes 5 groups. In this way, a packaging bag stack has 100 packaging bags stacked together, thereby meeting the demand for stacking multiple packaging bags at one time.

[0014] Furthermore, in the stack of packaging bags packaged by the packaging bag packaging system disclosed in the present application, in two adjacent packaging bag groups, the bag openings of each packaging bag group are located on opposite sides in the vertical direction. That is to say, in the same packaging bag stack, the bag openings and bag bottoms of two adjacent packaging bag groups are placed cross-overlappingly (the bag bottoms are alternately stacked), because in a group of packaging bags, the thickness of the bag opening and the bag bottom are inconsistent, and generally the thickness of the bag bottom is greater than the thickness of the bag opening. Therefore, the present application sets up a packaging system to achieve automatic collection while stacking in an alternating forward and reverse manner, optimizing the stacking method of packaging bags, making the packaging bag stacking more stable and less prone to collapse, and meeting the needs of stacking and collecting a large number of packaging bags and stably laying them flat.

[0015] Further preferably, 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 stroke distances of the horizontal transfer strokes are different, and the directions of the stacking strokes are opposite. With this arrangement, by adjusting and designing the different horizontal transfer strokes and stacking strokes in two adjacent clamping and stacking actions, the bag opening and the bag bottom in two adjacent clamping and stacking actions are stacked in an oppositely offset manner.

[0016] Further preferably, the packaging bag packing system also includes a bag body limiting mechanism, the bag body limiting mechanism includes a first limiting frame and a second limiting frame extending upward from the placing platform, the first limiting frame and the second limiting frame are arranged to be spaced apart from each other along the horizontal transfer direction of the horizontal transfer stroke, and a stacking space for placing stacks of packaging bags is defined between the first limiting frame and the second limiting frame, and in the horizontal transfer direction, the first limiting frame and the second limiting frame are also inclinedly provided with a first auxiliary support plate and a second auxiliary support plate on their outer sides, respectively.

[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 on the placement platform, and the packaging bag stack is placed on the receiving base plate. The labeling mechanism sticks the label on the protective film on the surface of the packaging bag stack.

[0018] The embodiment of the present invention further discloses a packaging bag packing method, which is applied to the packaging bag packing system mentioned above, and the method comprises:

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

[0020] S2, the clamping mechanism returns to the equipment outlet, clamps a new packaging bag group and moves the new packaging bag group to the top of 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.

[0021] S3, repeating the above 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 a plurality of packaging bag groups in sequence in the vertical direction. In the stack of packaging bags, in the same packaging bag group, the bag openings of the packaging bags are located on the same side in the vertical direction. In two adjacent packaging bag groups, the bag openings and bag bottoms of each packaging bag group are located on opposite sides in the vertical direction.

[0022] S4, the conveying mechanism conveys the packaging bag stack along the conveying path to the downstream laminating mechanism, the laminating mechanism receives the packaging bag stack from the placement platform and covers the outer periphery of the packaging bag stack with a protective film, and cuts off the protective film on the downstream side of the packaging bag stack in the conveying direction through the cutting component of the laminating mechanism.

[0023] S5. The conveying mechanism conveys the stack of packaging bags covered with the protective film to the heating and plastic sealing chamber, and heats the protective film to perform plastic sealing on the stack of packaging bags.

[0024] By adopting the above technical scheme, the packaging bag packing method disclosed in the present application can realize fully automated and efficient packaging, and can continuously perform clamping and stacking actions, ensuring the continuous operation of the production line, and cooperate with the production speed and production capacity of high-speed packaging bag forming equipment to quickly pack and produce good packaging bags. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0027] Figure 3 A schematic diagram of the partial structure of the clamping mechanism and the bottom plate placement mechanism of the packaging bag packaging system provided in an embodiment of the present invention;

[0028] Figure 4 A schematic diagram of a stacking stroke of a clamping mechanism of a packaging bag packing system provided in an embodiment of the present invention clamping two adjacent packaging bag groups with their bag openings and bag bottoms opposite to each other;

[0029] Figure 5 A schematic diagram of the partial structure of a film laminating mechanism of a packaging bag packaging system provided by an embodiment of the present invention;

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

[0031] Figure 7 This is a flow chart of the packaging bag packing method provided in Example 2 of the present invention.

[0032] Description of reference numerals:

[0033] 10. Equipment outlet;

[0034] 101. Packaging bag group;

[0035] 100. Place the platform;

[0036] 200, clamping mechanism;

[0037] 210, clamping head; 211, swinging part;

[0038] 220, horizontal drive assembly;

[0039] 221, horizontal driving unit; 222, horizontal guiding unit; 223, horizontal moving seat;

[0040] 230, vertical drive assembly;

[0041] 300, laminating mechanism;

[0042] 310, material storage component;

[0043] 311, material storage rack; 312, material storage roller shaft; 313, conveying roller shaft;

[0044] 320, film laying support; 330, cutting assembly; 340, film laying channel; 350, pressing plate;

[0045] 400, heating plastic sealing mechanism;

[0046] 410, heating plastic sealing chamber; 420, plastic sealing inlet; 430, plastic sealing outlet;

[0047] 500, conveying mechanism;

[0048] 510, first conveying mechanism;

[0049] 511, conveying guide unit; 512, sliding seat; 513, pressing rod; 514, supporting part;

[0050] 520, second conveying mechanism; 530, third conveying mechanism;

[0051] 600, labeling agency;

[0052] 700, bottom plate placement mechanism;

[0053] 710, placing the swing arm; 720, adsorption assembly;

[0054] 800, bag body limiting mechanism;

[0055] 911, first ascending stroke; 912, first horizontal moving stroke; 913, first descending moving stroke; 914, first stacking stroke; 915, first packaging bag group;

[0056] 921, second ascending stroke; 922, second horizontal moving stroke; 923, second descending moving stroke; 924, second stacking stroke; 925, second packaging bag group. DETAILED DESCRIPTION

[0057] Packaging bags play a vital role in modern commerce. They not only protect goods from damage, but also enhance brand image and attract consumers' attention through design, printing and material selection. With the development of science and technology, many packaging bag forming equipment have appeared in the prior art. Most of the packaging bag forming equipment folds the sheet base material into a three-dimensional packaging bag. The formed packaging bag is output after folding, and then the output packaging bag is collected, stored or transported for standby.

[0058] After the existing packaging bag forming equipment is produced, it is necessary to collect and pack the packaging bags produced by the packaging bag forming equipment by manual picking. Each packaging bag forming equipment needs to be equipped with at least one staff member to collect and pack the packaging bags. The staff's packaging efficiency is low when they pack purely by physical labor, and it is easy to make packaging errors under high-intensity labor. And with the development of technology, the bag making and folding speed of packaging bag forming equipment is getting faster and faster. For example, the output speed is 120, 150 or even faster per minute. This requires the staff to sort and collect 120, 150 or even more packaging bags per minute. It is difficult to meet the packaging of high-speed machines simply by manual means. Furthermore, although there are some auxiliary packaging mechanisms in the existing technology, these auxiliary packaging mechanisms are to collect after a certain number of packaging bags are accumulated at the outlet of the equipment, and still cannot achieve automatic packaging, so it is impossible to achieve full production line automation.

[0059] In order to solve the above technical problems, the present application discloses a packaging bag packaging system, which can realize the automatic packaging stacking, coating and heating and plastic sealing processes of packaging bags by setting a placement platform, a clamping mechanism, a laminating mechanism, a heating and plastic sealing mechanism and a conveying mechanism to cooperate with each other, so as to pack the produced packaging bags, and the packaging system can clamp and pack a large number of packaging bags at one time, which can meet the packaging speed requirements of high-speed machines, and can also realize fully automatic packaging of packaging bags. In addition, those skilled in the art should understand that the packaging bag packaging system disclosed in the present application can also pack various common bag types such as handbags, non-woven bags, paper bags, plastic bags, etc.

[0060] Next, the specific structure, coordination method and working process of the packaging bag packaging system disclosed in this application are briefly described:

[0061] The embodiment of the present invention discloses a packaging bag packaging system, which is located downstream of the device outlet end 10 of the packaging bag forming device, and includes a placement platform 100, a clamping mechanism 200, a laminating mechanism 300, a heating and plastic sealing mechanism 400, and a conveying mechanism 500. Those skilled in the art should understand that the packaging bag packaging system disclosed in the present application can sequentially achieve the following by setting these structures: clamping and stacking packaging bags to form a packaging bag stack, and then conveying the packaging bag stack to the laminating mechanism 300 to complete the laminating of the outer layer of the packaging bag stack, and the film can be a dustproof film, a protective film, etc., and then conveying to the heating and plastic sealing mechanism 400 to heat and plastic seal the film after the laminating is completed. The conveying mechanism 500 is used to convey the packaging bag stack between two adjacent mechanisms, for example, from the placement platform 100 to the laminating mechanism 300, from the laminating mechanism 300 to the heating and plastic sealing mechanism 400, etc. The conveying mechanism 500 can be a push conveying mechanism, a belt transmission conveying mechanism, etc., and can be adjusted and designed according to specific needs.

[0062] The placement platform 100, the clamping mechanism 200, the laminating mechanism 300 and the heating and plastic sealing mechanism 400 disclosed in the present application are arranged in sequence along the packaging direction, so see Figure 1 In one of the settings, the platform 100, the clamping mechanism 200, the laminating mechanism 300 and the heating and plastic sealing mechanism 400 are arranged in a straight line. In another setting, they can also be arranged in an "L" shape, "U" shape or other different arrangements according to 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.

[0063] The placement platform 100 in the present application is arranged on the downstream side of the equipment outlet 10. Preferably, the placement platform 100 is arranged on the downstream side of the equipment outlet 10 near the outlet. Similarly, the clamping mechanism 200 is arranged on the frame and can reciprocate between the equipment outlet 10 and the placement platform 100 to perform multiple clamping and stacking actions to form a stack of packaging bags in the stacking space on the placement platform 100. Therefore, the clamping mechanism 200 is also arranged on the downstream side of the equipment outlet 10 near the outlet. It should be noted that when the clamping mechanism 200 moves back and forth between the equipment outlet end 10 and the placement platform 100 to perform the clamping and stacking action, the clamping mechanism 200 clamps a certain number of packaging bags (hereinafter also referred to as packaging bag group 101) at the equipment outlet end 10 and then transfers and stacks them on the placement platform 100. Therefore, all actions of the clamping mechanism 200 in this application are to clamp the packaging bags from the equipment outlet end 10 and then stack them horizontally on the placement platform 100. The clamping mechanism 200 must be provided with at least one component that can clamp and release, such as a clamping head 210, a clamping claw, a robotic arm, etc., and can clamp 10, 15, 20 or other numbers of packaging bags at a time during each clamping process. This embodiment does not make specific limitations on this.

[0064] 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 located downstream of the placement platform 100. The laminating mechanism 300 receives the packaging bag stacks from the placement platform 100 conveyed by the conveying mechanism 500, and covers the outer periphery of the packaging bag stacks with a layer of protective film. The laminating action can be performed after receiving each packaging bag stack conveyed. The heating and plastic sealing mechanism 400 is located downstream of the laminating mechanism 300 in the packaging direction, and heats the protective film on the outer periphery of the packaging bag stacks from the laminating mechanism 300 so that the protective film is heated and plastic-sealed to the outer peripheral surface of the packaging bag stacks.

[0065] The conveying mechanism 500 passes through the laminating mechanism 300 and the heating and plastic sealing mechanism 400 from the placement platform 100 in sequence, so as to convey the stack of packaging bags on the placement platform 100 through the laminating mechanism 300 and the heating and plastic sealing mechanism 400 in sequence, that is, the stack of packaging bags needs to pass through the laminating mechanism 300 and the heating and plastic sealing mechanism 400 respectively. In one implementation, the conveying mechanism 500 can be set as a whole conveyor belt, conveyor chain, etc. to convey the stack of packaging bags between different mechanisms such as the laminating mechanism 300 and the heating and plastic sealing mechanism 400; in another implementation, the conveying mechanism 500 can also include multiple separate conveying components and be arranged between two adjacent mechanisms. The multiple conveying components are arranged at intervals in the packaging direction and ensure that the stack of packaging bags can be conveyed to pass through the laminating mechanism 300 and the heating and plastic sealing mechanism 400 in sequence. For example, a reciprocating conveying component is arranged between the stack of packaging bags and the laminating mechanism 300, and a conveyor belt or conveyor chain is arranged between the laminating mechanism 300 and the heating and plastic sealing mechanism 400.

[0066] Next, the clamping and stacking action of the clamping mechanism 200 is explained in detail:

[0067] First of all, it should be noted that each packaging bag outputted from the device outlet 10 of the packaging bag forming device in this embodiment is outputted after being folded and flattened (for easy sorting, packaging and transportation), and each packaging bag outputted in this embodiment is outputted vertically outward, and then after the predetermined number of bags are accumulated at the output end, the tops of the multiple packaging bags are clamped by the clamping head 210 of the clamping mechanism 200 and transported toward the placement platform 100. It should be noted that the bag openings of each packaging bag outputted from the device outlet 10 are consistent, for example, the bag openings are all facing upward or facing downward. In other embodiments or implementations, the packaging bags can be outputted outward in a horizontal direction, and are also clamped by the clamping head 210 of the clamping mechanism 200 after reaching the predetermined number, and the only difference is that the clamping position and clamping angle of the clamping head 210 are different, and this embodiment does not make specific restrictions on this.

[0068] In each clamping and stacking action, the clamping head 210 of the clamping mechanism 200 approaches the device outlet 10, clamps a packaging bag group 101 and moves to the top of the placement platform 100, and stacks a packaging bag group 101 horizontally in the stacking space. The stacking space is a fixed area on the placement platform 100, and the clamping head 210 of the clamping mechanism 200 places a packaging bag group 101 in the area each time. When the number of clamping increases, multiple packaging bag groups 101 are stacked in the vertical direction above the placement platform 100 to form a packaging bag stack, wherein 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 in the vertical direction. Furthermore, because the directions of each packaging bag coming out of the device outlet 10 are consistent, for example, the bag openings are facing upward, in the packaging bag stack, the bag openings of each packaging bag in the same packaging bag group 101 are located on the same side in the vertical direction. In two adjacent packaging bag groups 101, the bag openings of each packaging bag group 101 are located on opposite sides in the vertical direction.

[0069] That is to say, in the same stack of packaging bags, the bag openings and bag bottoms of two adjacent groups of packaging bags are placed cross-overlappingly, that is, the bag openings and bag bottoms are alternately stacked. Because for each packaging bag, the thickness of the bag opening and bag bottom are inconsistent. Generally speaking, because the bag bottom has a repeated folding structure, the thickness of the bag bottom is greater than the thickness of the bag opening. For example, when the thickness of the bag bottom of each packaging bag is 1mm thicker than the thickness of the bag opening, when a group of packaging bags has 10 packaging bags, the bag bottom of a group of packaging bags will be 1cm thicker than the bag opening. If the bag openings and bag bottoms are stacked in the same direction, even if only 30 packaging bags are stacked in one packaging bag stack, each bag opening Any setting method will result in a thickness difference of more than 3 cm between the bottom and the mouth of a stack of packaging bags. This method will inevitably lead to unstable stacking of packaging bags, easy to tip over and inability to stack more quantities at one time. Therefore, during the packaging process, the packaging bag packaging system disclosed in the present application can automatically collect and stack them in an alternating manner, or in an alternating manner of stacking the bag mouth and the bag bottom. After the bag mouth and the bag bottom are alternately stacked, the height difference between the bag mouth and the bag bottom can be eliminated, thereby optimizing the stacking method of the packaging bags, making the stacking of the packaging bags more stable and less likely to collapse, and meeting the needs of stacking and collecting a large number of packaging bags and stably laying them flat.

[0070] By adopting the above-mentioned structural design, the present application provides a fully automated and efficient packaging bag packaging system. The clamping mechanism 200 moves back and forth between the equipment outlet 10 and the placement platform 100 to perform multiple clamping and stacking actions. It can continuously perform clamping and stacking actions, ensuring the continuous operation of the production line. In conjunction with the production speed and capacity of the high-speed packaging bag forming equipment, the packaging bags produced can be quickly packaged. Furthermore, the clamping mechanism 200 can accurately control the clamping force and moving speed, thereby ensuring that the material is not damaged during the clamping and stacking process, thereby ensuring product quality. Since the clamping mechanism 200 can operate according to a preset program, each clamping and stacking action is consistent, thereby improving the consistency and stability of the product. It also saves labor costs and has higher safety performance.

[0071] More importantly, the packaging system provided by the present application can perform multiple clamping and stacking actions in one packaging process. Each time a group of packaging bag groups 101 (consisting of multiple packaging bags) is clamped, and then multiple groups of packaging bag groups 101 are stacked and stacked in sequence on the placement platform 100 to form a packaging bag stack (multiple groups of packaging bags). Through such a design, a larger number of packaging bags can be stacked in one packaging bag stack. For example, a group of packaging bag groups includes 20, and a packaging bag stack includes 5 groups. In this way, a packaging bag stack has 100 packaging bags stacked together, and because the bag mouth and the bag bottom are alternately stacked, the height difference between the bag mouth and the bag bottom is eliminated, thereby meeting the demand for stacking a larger number of packaging bags at one time, thereby improving the packaging efficiency of the packaging system.

[0072] In order to make the actions, working modes and coordination between the various mechanisms of the packaging bag packaging system disclosed in the present application clear, the clamping mechanism 200, the laminating mechanism 300, the heating and plastic sealing mechanism 400 and the conveying mechanism 500 are explained in detail separately below:

[0073] First, the working method and specific structure of the clamping mechanism 200 are described:

[0074] In the packaging bag packaging system disclosed in this embodiment, see Figure 2 as well as Figure 3The clamping mechanism 200 includes a horizontal drive assembly 220, a vertical drive assembly 230 and a clamping assembly. Among them, one end of the horizontal drive assembly 220 is fixed on the frame, above the equipment outlet end 10, and the other end extends horizontally to above the placement platform 100 and has a horizontal movable part that can move horizontally. Those skilled in the art should understand that the horizontal drive assembly 220 can be various common structures that can achieve horizontal movement and drive, for example, the horizontal drive assembly 220 can be a cylinder arranged in the horizontal direction, a horizontal guide rail and a horizontal movable seat are arranged at the output end of the cylinder, and the horizontal movable seat is driven by the cylinder to move along the horizontal guide rail; the horizontal drive assembly 220 can be a drive motor, a gear rack arranged in the horizontal direction, a worm gear and other structures, and a horizontal guide rail and a horizontal movable seat arranged in the horizontal direction, for example, the output end of the drive motor is connected to the gear transmission, and then drives the rack and the horizontal movable part to move in the horizontal direction. 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, etc. 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 reciprocatingly and drives the horizontal movable seat to move reciprocatingly in the horizontal direction.

[0075] The vertical drive assembly 230 is disposed on the horizontal movable portion of the horizontal drive assembly 220 and has a vertical movable portion that can move in the vertical direction, and the clamping assembly is disposed on the vertical movable portion. Similarly, the vertical drive assembly 230 can also be various common structures 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.

[0076] Furthermore, in this embodiment, the horizontal driving assembly 220 drives the horizontal movable part, the linked vertical driving assembly 230 and the clamping assembly to move in the horizontal direction, and the vertical driving assembly 230 drives the vertical movable part and the linked clamping assembly to move in the vertical direction; wherein each clamping and stacking action includes a clamping stroke, a horizontal transfer stroke, and a stacking stroke. Specifically, the clamping strokes in each clamping and stacking action are basically the same, and multiple packaging bags are clamped by the clamping head 210, and then transported upward along the ascending stroke for a certain distance, and then moved along the horizontal transfer stroke, and then transported downward along the descending stroke for a certain distance after moving to a predetermined position, and finally a group of packaging bags are stacked on the placement platform 100 along the stacking stroke.

[0077] Furthermore, in two adjacent clamping and stacking actions, the distances of the horizontal transfer strokes are different, and the directions of the stacking strokes are opposite. Specifically, taking the placement platform 100 as a reference, in the two clamping and stacking actions, one horizontal transfer stroke is longer, and the other horizontal transfer stroke is shorter, and further the two opposite stacking strokes are coordinated to achieve alternating stacking of the bag mouth and the bag bottom during the two adjacent stacking processes.

[0078] In order to explain in more detail how to clamp and stack the packaging bag group 101 by clamping and stacking twice in different strokes, please refer to Figure 4 In this embodiment, the first stacking and the second stacking are taken as examples for explanation:

[0079] In the figure, the dotted arrow indicates the first stacking stroke, and the solid arrow indicates the second stacking stroke. The unclamped and stacked packaging bag group 101 stands upright at the outlet end 10 of the device. Figure 4 The black part of each packaging bag group 101 represents the bag opening part.

[0080] First, take 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 end 10 to clamp the bag mouth (black part) of the first packaging bag group 915 as the first clamping stroke. After clamping the first packaging bag group 915, it first moves along the first ascending stroke 911, and after rising to a predetermined height, it moves along the first horizontal moving stroke 912 in the horizontal direction. After moving to the first predetermined position, it moves along the first descending moving stroke 913, and then moves toward 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 mouth is placed toward the side close to the equipment outlet end 10.

[0081] Next, the clamping of the second packaging bag group 925 in the second stacking stroke is used as an example for explanation. After the clamping head 210 of the clamping mechanism 200 has completed stacking the first packaging bag group 915, 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 (black part) of the second packaging bag group 925 as the second clamping stroke. After clamping the second packaging bag group 925, it first moves along the second ascending stroke 921, and after ascending to a predetermined height, it moves along the second horizontal movement stroke 922 in the horizontal direction. After moving to the second predetermined position, it moves along the second descending movement stroke 923, and then moves toward 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 toward the side away from the equipment outlet end 10. After completing the first stacking and the second stacking, the two groups of packaging bags are stacked in sequence in the vertical direction, and the bag opening and the bag bottom are stacked in opposite ways.

[0082] More specifically, in the present embodiment, the horizontal driving assembly 220 includes a horizontal driving unit 221, a horizontal guiding unit 222 and a horizontal movable seat 223 as a horizontal movable part. The horizontal guiding unit 222 is extended in the horizontal direction and one end is fixed to the frame. The horizontal movable seat 223 can be translated in the horizontal direction on one side of the horizontal guiding unit 222. The horizontal driving unit 221 is fixed on the horizontal guiding unit 222 and can drive the horizontal movable seat 223 to reciprocate in the horizontal direction on the horizontal guiding unit 222.

[0083] In a preferred implementation method disclosed in this embodiment, the horizontal driving unit 221 is configured as a driving motor, and cooperates with a conveyor belt arranged in the horizontal direction. The horizontal movable seat 223 is fixedly arranged at one end of the conveyor belt. The horizontal guiding unit 222 is preferably configured as a horizontal guide rail, and the horizontal movable seat 223 is slidably arranged on the horizontal guide rail. Through this structural design, because the horizontal driving component 220 only needs to realize horizontal reciprocating motion, it can be realized by setting a driving motor, a conveyor belt and a horizontal movable seat 223 to work together.

[0084] It should be noted that, in this embodiment, the first stacking process and the second stacking process are as follows: Figure 2~Figure 4 It can be known that the vertical movement stroke of the vertical drive assembly 230 disclosed in the present application needs to be changed and adjusted. In different stacking processes, the vertical drive assembly 230 drives the clamping head 210 to move in a vertical direction at different distances.

[0085] The clamping assembly includes a swinging portion 211 and a clamping head 210. In the present embodiment, because the packaging bag group 101 is placed in a vertical direction when the packaging bag group 101 is clamped from the equipment outlet end 10, and is placed in a horizontal direction when stacked on the placement platform 100, the swinging portion 211 is preferably provided in the present 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 portion 211 drives the clamping head 210 to swing 90 degrees, so that the bag mouth of the packaging bag group 101 changes from a vertical state to a horizontal state. The clamping head 210 is provided at the lower end of the swinging portion 211. The clamping head 210 can switch between an open state and a clamping state, and the swinging portion 211 can swing within an angle range of -90° to +90° relative to the vertical direction.

[0086] It should be noted that, in this embodiment, the swing portion 211 can swing -90°~+90° relative to the vertical direction, which means that the swing angles are different. For example, when the swing portion 211 swings 90° to the left, it is +90°, and when the swing portion 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 in the direction toward the right, the swing portion 211 swings 90° to the left, so that the bag opening after placement faces the right; when the stacked packaging bag group 101 is moved in the direction toward the left, the swing portion 211 swings 90° to the right, so that the bag opening after placement faces the left, thereby achieving that the bag openings and bag bottoms of two adjacent packaging bag groups 101 are placed in sequence and cross-overlap.

[0087] Furthermore, in order to improve the stability of stacking packaging bags in the stacking space, the packaging bag packaging system disclosed in this embodiment also includes a bag body limiting mechanism 800, which includes a first limiting frame and a second limiting frame extending upward from the placement platform 100, the first limiting frame and the second limiting frame are arranged at intervals from each other along the horizontal transfer direction of the horizontal transfer stroke, and the first limiting frame and the second limiting frame define a stacking space for placing the packaging bag stacks. In addition, in the horizontal transfer direction, the first limiting frame and the second limiting frame are respectively provided with a first auxiliary support plate and a second auxiliary support plate on the outside, the first auxiliary support plate and the second auxiliary support plate are fixedly arranged on the placement platform 100, and the first auxiliary support plate and the second auxiliary support plate are inclined from the placement platform 100 toward the stacking space along the horizontal transfer direction.

[0088] The spacing dimension between the first limiting frame and the second limiting frame of the bag body limiting mechanism 800 disclosed in this embodiment must be at least larger than the length dimension from the bag opening to the bag bottom of each packaging bag. Preferably, in this embodiment, the spacing dimension between the first limiting frame and the second limiting frame is larger than the length dimension of the packaging bag by 5 to 10 cm. This can limit the packaging bag without interfering with the packaging bag.

[0089] More specifically, in this embodiment, the first limit frame and the second limit frame can also be lifted and lowered relative to the top surface of the placement platform 100, respectively. The first limit frame and the second limit frame disclosed in this application work separately, and in two adjacent clamping and stacking actions, the first limit frame and the second limit frame are lifted and staggered in sequence, respectively. In each clamping and stacking action, before the clamping mechanism 200 clamps a packaging bag group 101 and enters the stacking stroke, one of the first limit frame and the second limit frame on the side where the current stacking stroke starts is lifted upward relative to the placement platform 100 in the vertical direction until its top is higher than the other limit member and the height of the topmost packaging bag in the current stacking space in the vertical direction, that is, no matter from which direction the packaging bag group 101 is transferred and stacked, the limit frame on the corresponding side must be at least higher than the limit frame on the other side, and also higher than the height of the packaging bag. In addition, the first limit frame and the second limit frame can be driven to lift and lower by a driving cylinder, a linear motor or other driving unit, which is not specifically limited in this embodiment.

[0090] Next, continue to see Figure 2 The first stacking and the second stacking of the packaging bag group 101 are used as examples for explanation:

[0091] A first limiting frame is arranged on the left side, with a first auxiliary support plate on the left side of the first limiting frame, and a second limiting frame is arranged on the right side, with a second auxiliary support plate on the right side of the second limiting frame, wherein when the first stacking stroke 914 of the first stacking is directed toward the left side, when the clamping head 210 clamps the packaging bag group 101 and moves toward the left side, the first limiting frame is first lifted to a certain height (for example, any value within 5 to 15 cm), and then during the process of the clamping head 210 clamping the packaging bag group 101 and moving the bag group to the left, the bag bottom of the packaging bag will first pass through the inclined first auxiliary support plate in a sweeping posture, so that the packaging bag group 101 is in an inclined state, the bag opening is located on the right side of the bag bottom, and the height of the bag opening is higher than the height of the bag bottom, and then the bag bottom passes through the first limiting frame in a sweeping posture. Through such a structural design, it can be ensured that a group of packaging bag groups 101 are horizontally stacked on the placement platform 100 in a flat posture, and the packaging bag will not produce wrinkles or unevenness.

[0092] When the second stacking stroke 924 of the second stacking is directed toward the right side, when the clamping head 210 clamps the packaging bag group 101 and moves toward the right side, the second limiting frame should be pre-raised to a higher height (for example, any value within 30-45 cm). For example, before the second stacking, the height of the first limiting frame and the first stacked packaging bag group 101 are roughly flush, both of which are 15 cm. At this time, the height to which the second limiting frame should be raised should be at least higher than the top surface of the first packaging bag group 101 and the height of the first limiting frame, so that the second limiting frame can lift the bottom of the second packaging bag group 101. To achieve the smoothing effect, similarly, when the clamping head 210 clamps the packaging bag group 101 and moves to the right, the bottom of the packaging bag will first pass through the inclined second auxiliary support plate in a sweeping posture, so that the packaging bag group 101 is in a tilted state, the bag opening is located on the left side of the bag bottom, and the height of the bag opening is higher than the height of the bag bottom, and then the bag bottom passes through the second limit frame in a sweeping posture. Through such a structural design, it can be ensured that the second group of packaging bag groups 101 are horizontally stacked on top of the first group of packaging bag groups 101 in a flat posture, and the bag opening and the bag bottom are in opposite directions to balance the problem of inconsistent thickness between the bag opening and the bag bottom.

[0093] Furthermore, the implementation of this embodiment also discloses a packaging bag packaging system, which also includes a bottom plate placement mechanism 700. In this embodiment, the bottom plate placement mechanism 700 is used to place a receiving bottom plate on the placement platform 100 before stacking the packaging bags to form a stack, and then place the packaging bags on the receiving bottom plate during the stacking process. Specifically, placing the receiving bottom plate in this embodiment has the advantage of enhancing the stability of the packaging bag stacking, so that the packaging bags are not easy to tip over or slide during the stacking process. The receiving bottom plate can disperse the pressure on the bottom of the packaging bag to avoid the packaging bag from being damaged due to excessive local pressure. At the same time, the bottom plate can also prevent direct friction between the packaging bag and the placement platform 100, reducing the wear of the packaging bag. Further setting the receiving bottom plate can also enhance the overall structural strength of the packaging bag stacking, and reduce the damage and scattering of the packaging bag caused by bumps and vibrations during transportation. At the same time, the bottom plate can also serve as a fixed fulcrum for the transportation tool to ensure the stability and safety of the packaging bag stacking during transportation.

[0094] The bottom plate placement mechanism 700 disclosed in this embodiment includes a bottom plate placement space located on one side of the placement platform 100, and a bottom plate placement component, one end of the bottom plate placement component is fixed on the frame, and the other end can reciprocate between the bottom plate placement space and the placement platform 100. Among them, the bottom plate placement component includes a placement swing arm 710 and an adsorption component 720, one end of the placement swing arm 710 is fixed on the frame and above the placement platform 100, and the adsorption component 720 is arranged at the other end of the placement swing arm 710, and the placement swing arm 710 can drive the adsorption component 720 to reciprocate between the bottom plate placement space and the placement platform 100, and multiple receiving bottom plates are stacked in the bottom plate placement space. Among them, the adsorption component 720 adsorbs the outermost one of the multiple receiving bottom plates, and the placement swing arm 710 drives the adsorption component 720 and the receiving bottom plate to swing, and lays the receiving bottom plate flat in the stacking space on the placement platform 100, and the packaging bag is stacked on the receiving bottom plate.

[0095] Specifically, the placement swing arm 710 in this embodiment can be set to a motor and a connecting rod working together to achieve the reciprocating movement and placement of the swing arm, or it can be set to a motor, a cam and a rotating shaft working together to achieve the reciprocating movement and change of the swing arm, or it can be driven by a cylinder, a cam and a connecting rod working together to achieve the reciprocating movement and placement of the swing arm. This embodiment does not make any specific limitations on this.

[0096] More specifically, in this embodiment, the adsorption component 720 is preferably configured as a suction nozzle, and multiple suction nozzles are arranged at intervals, for example, 4, 6, 8 or other numbers are arranged at intervals. By arranging the coordinated work of the adsorption component 720 and the placement swing arm 710, the automatic grasping, swinging and flattening of the receiving base plate can be realized, which greatly improves the degree of automation 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 each time the operation is performed. The swing arm is set to further ensure that the receiving base plate is accurately flattened at the designated position of the placement platform 100, thereby achieving precise positioning.

[0097] Next, the specific structure of the film laminating mechanism 300 of the packaging bag packaging system disclosed in this application is described in detail:

[0098] See also Figure 1 as well as Figure 5 The laminating mechanism 300 includes a material storage component 310 ( Figure 1), a film laying support 320 and a cutting assembly 330. The material storage assembly 310 includes a material storage frame 311, a material storage roller 312 and a conveying roller 313. The material storage roller 312 is arranged in the material storage frame 311. A protective film roll is fixedly sleeved on the material storage roller 312. The conveying roller 313 is arranged on one side of the material storage roller 312 and conveys the protective film. The material storage frame 311 is a supporting structure of the material storage assembly 310, which is used to fix and support the material storage roller 312 and the conveying roller 313, and protect the protective film roll in the material storage frame 311. The design of the material storage roller 312 allows the protective film roll to rotate and unfold smoothly, which is convenient for subsequent transportation and use. The conveying roller 313 drives the protective film to unfold from the material storage roller 312 by rotating, and conveys it to a designated position and lays it on the conveying path of the packaging bag stack. In this embodiment, the film laying support 320 is preferably configured as a tripod, which has the advantage of a more stable structure.

[0099] The film laying support 320 is fixedly arranged on the conveying mechanism 500 and is located on the transmission path of the packaging bag stack. The film laying support 320 has a film covering channel 340 for the packaging bag stack to pass through below. The protective film passes through the conveying roller 313 in sequence and is laid on the film laying support 320. The protective film on the film laying support 320 covers the film covering channel 340 in the vertical direction, and when the packaging bag stack is conveyed through the film covering channel 340, the protective film covers the periphery of the packaging bag stack. Specifically, the protective film on the film laying support 320 covers the film covering channel 340 in the vertical direction to form a closed or nearly closed wrapping space. When the packaging bag stack is conveyed to the film covering channel 340, the protective film will automatically cover the periphery of the packaging bag stack to achieve the purpose of packaging. 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, which greatly improves the packaging efficiency. The protective film can tightly cover the outer circumference of the packaging bag stack, providing effective protection to prevent damage during transportation or storage.

[0100] The cutting assembly 330 is arranged downstream of the film laying support 320. After the packaging bag stack passes through the film coating channel 340 and is covered with the protective film, the cutting assembly 330 cuts off the protective film on the downstream side of the packaging bag stack in the conveying direction. The cutting assembly 330 includes a cutter support, a transverse cutter and a driving unit. The cutter support is arranged on the transmission path downstream of the film laying support 320 to provide a stable support for the transverse cutter. The transverse cutter is connected to the driving unit by transmission, and the driving unit can drive the transverse cutter to move back and forth in the vertical direction. A lifting and moving pressing plate 350 is also arranged on the downstream side of the cutter support. The driving unit can be set as a driving cylinder, a driving motor and a transmission belt, a linear motor or other components that can realize reciprocating movement. In this embodiment, it is preferably set as a driving cylinder. The cutting assembly 330 realizes precise cutting of the protective film through the cooperation of the transverse cutter and the driving unit. The cutting process is smooth and rapid, which can ensure the accuracy and consistency of the cutting position and has high efficiency and automation.

[0101] Furthermore, a pressing plate 350 is provided. The function of the pressing plate 350 is to press the protective film tightly against the stack of packaging bags before cutting, and to avoid shaking and displacement of the stack of packaging bags during cutting. Pressing the stack of packaging bags by the pressing plate 350 before cutting also helps to protect the stack of packaging bags from damage and ensure 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.

[0102] Furthermore, in this embodiment, the material storage rack 311 is located on one side of the transmission path of the packaging bag stack, and the transmission direction of the protective film is perpendicular to the direction of the transmission path of the packaging bag stack. With such a setting, the protective film is unfolded from the material storage rack 311 and transmitted to the film laying support 320 along a specific direction, and such a setting allows the protective film to be laid flat on the path of the packaging bag stack, thereby ensuring that the packaging bag stack can be automatically coated when passing through the film laying support 320. The film laying support 320 includes an inclined guide frame spanning the transmission path, and the length dimension of the inclined guide frame is greater than the width dimension of the transmission path, which can ensure that the protective film can completely cover the entire transmission path. The protective film is wound around the inclined guide frame and is set on the transmission path of the packaging bag stack, and the width dimension of the protective film is greater than the width dimension of the transmission path. With such a setting, the protective film can fully cover the packaging bag stack on the entire transmission path, ensuring that each packaging bag stack can be fully protected during the transmission process. The design is highly flexible and can adapt to different sizes and shapes of packaging bag stacks. By adjusting the position of the inclined guide frame and the protective film, it can be ensured that the protective film can fit tightly around the outer periphery of the packaging bag stack.

[0103] Next, the heating and plastic sealing of the packaging system of the packaging bag disclosed in this application is explained in detail:

[0104] like Figure 1 As shown, in an achievable embodiment, the heating and plastic sealing mechanism 400 includes a heating and plastic sealing chamber 410, and the heating and plastic sealing chamber 410 includes a plastic sealing inlet 420 and a plastic sealing outlet 430 arranged at intervals along the transmission path. The heating and plastic sealing chamber 410 provides a closed or semi-closed environment for heating and plastic sealing the protective film. In the chamber, the heating unit transfers heat to the protective film and the packaging bag stack to make them reach the temperature required for heat plastic sealing. The packaging bag stack enters through the plastic sealing inlet 420 in the heating and plastic sealing chamber 410, and then is discharged from the plastic sealing outlet 430. The heating and plastic sealing chamber 410 is provided with a heating unit, and the transmission mechanism extends from the plastic sealing inlet 420 to the plastic sealing outlet 430. Preferably, the transmission mechanism is configured as a conveying roller extending sequentially in the heating and plastic sealing chamber 410. The heating and plastic sealing mechanism 400 is a crucial part of the automated packaging system, which is responsible for tightly fixing the protective film on the packaging bag stack to provide additional protection and stability. Through the coordinated work of the heat-sealing chamber, the heating unit and the transmission mechanism, the heating, sealing and fixing of the protective film on the stack of packaging bags are achieved. The heat-sealing chamber 410 disclosed in the present application has remarkable effects such as transmission stability, precise control, adaptability and easy maintenance.

[0105] It should be further explained 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 exit of the laminating mechanism 300. The second conveying mechanism 520 extends from the exit of the laminating mechanism 300 through the heating and plastic sealing mechanism 400, and also includes a third conveying mechanism 530. The third conveying mechanism 530 conveys from the heating and plastic sealing mechanism 400 to the side of the labeling mechanism 600.

[0106] The first conveying mechanism 510 includes a conveying driving unit, a conveying guiding unit 511 and a pressing and pushing component. Figure 6The conveying guide unit 511 extends from one side of the placement platform 100 toward one side of the 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 driving motor, and the conveying guide unit 511 is configured as a conveyor belt. The driving motor drives the conveyor belt to move back and forth to drive the pressing and pushing component. The pressing and pushing assembly includes a sliding seat 512, a supporting portion 514 and a pressing rod 513. The sliding seat 512 is connected to the conveyor belt transmission. The supporting portion 514 is fixedly arranged on the sliding seat 512. A pressing cylinder is also arranged on the supporting portion 514. The pressing rod 513 is arranged at the end of the pressing cylinder. In the present embodiment, two groups of pressing rods 513 are arranged. When the pressing and pushing assembly needs to press and push the packaging bag stack, the sliding seat 512 first drives the supporting portion 514 and the pressing rod 513 to slide to one side of the packaging bag stack, and then the pressing cylinder drives the pressing rod 513 downward to press the packaging bag stack downward, which can reduce the gap between the packaging bags, make the packaging bag stack pressed more tightly, facilitate mobile transportation and reduce the volume of the packaging bag stack.

[0107] The second conveying mechanism 520 and the third conveying mechanism 530 include conveying belts, one end of which is located at the outlet of the laminating mechanism 300 , and the other end of which extends out of the outlet of the heating and plastic sealing mechanism 400 .

[0108] Next, the labeling mechanism 600 in the packaging bag packaging system disclosed in the present application is explained. The labeling mechanism 600 includes a labeling bracket and a labeling conveyor belt. The labeling conveyor belt is arranged on the labeling bracket in a conveyable manner. A plurality of labels are pasted on the labeling conveyor belt at intervals. When the packaging bag stack is conveyed to the labeling bracket, one of the labels is pasted on 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 and is used to convey and position the label. When the packaging bag stack reaches the labeling position, the labeling conveyor belt will move 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 an adhesive to ensure that the label is firmly pasted on the protective film. Once the label is pasted, the labeling conveyor belt may continue to move to prepare the next label for the next packaging bag stack. Labeling on the packaged packaging bag stack provides key information about the packaging bag, which is helpful for product identification, tracking and management.

[0109] In summary, the packaging system of the packaging bag disclosed in the present application is explained in more detail. In a preferred embodiment disclosed in the present application, the packaging system includes a placement platform 100, a bottom plate placement mechanism 700, a clamping mechanism 200, a bag body limiting mechanism 800, a film laminating mechanism 300, a heating and plastic sealing mechanism 400, a labeling mechanism 600 and a conveying mechanism 500. The clamping mechanism 200, the film laminating mechanism 300, the heating and plastic sealing mechanism 400 and the labeling mechanism 600 are sequentially arranged at intervals along the packaging direction, and the adjacent two mechanisms are conveyed by the conveying mechanism 500 and the packaging bag stack is conveyed from the upstream mechanism to the downstream mechanism. Among them:

[0110] The bottom plate placement mechanism 700 is arranged on one side of the clamping mechanism 200 and its working process will not interfere with the misalignment of the clamping mechanism 200. The bottom plate placement mechanism 700 includes a placement swing arm 710 and an adsorption assembly 720. The bottom plate placement mechanism 700 is used to place a receiving bottom plate on the placement platform 100 before packaging and stacking to form a stack of packaging bags, and then place the packaging bags on the receiving bottom plate during the stacking process. The clamping mechanism 200 includes a horizontal drive assembly 220, a vertical drive assembly 230 and a clamping assembly. The horizontal drive assembly 220 drives the horizontal movable part, the linkage vertical drive assembly 230 and the clamping assembly to move in the horizontal direction, and the vertical drive assembly 230 drives the vertical movable part and the linkage clamping assembly to move in the vertical direction. The bag body limiting mechanism 800 includes a first limiting frame and a second limiting frame extending upward from the placement platform 100, and a first auxiliary support plate and a second auxiliary support plate located outside the first limiting frame and the second limiting frame, which cooperate to assist in stacking the packaging bag group 101 and form a packaging bag stack. The film coating mechanism 300 includes a material storage component 310, a film laying support 320, and a cutting component 330. The protective film output from the material storage component 310 is laid on the film laying support 320. 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. The cutting component 330 is arranged downstream of the film laying support 320. After the packaging bag stack passes through the film coating channel 340 and is covered with the protective film, the cutting component 330 cuts off the protective film on the downstream side of the packaging bag stack in the conveying direction. The heating and plastic sealing cabin 410 is located downstream of the film coating mechanism 300. The heating and plastic sealing cabin 410 provides a closed or semi-closed environment for heating and plastic sealing the protective film. A labeling mechanism 600 is provided downstream of the heating and plastic sealing chamber 410, and finally the outer surface of the protective film is labeled.

[0111] Next, the packaging process of the packaging system for packaging bags disclosed in this application is further described:

[0112] First, the placement platform 100 and the clamping mechanism 200 are arranged on the side close to the equipment outlet end 10. In this embodiment, the clamping head 210 of the clamping mechanism 200 clamps 20 packaging bags at one time as an example for explanation. First, 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 the receiving bottom plate is laid flat in the stacking space on the placement platform 100 (located at the first limit frame and the second limit frame), and at this time, the first limit frame and the second limit frame are located below the placement platform 100.

[0113] Then the clamping mechanism 200 starts to clamp the first group of packaging bag groups 101 for stacking. The first stacking process is as follows: Figure 4 As shown by the dotted arrow, the clamping head 210 clamps the bag opening of the first packaging bag group 915 from the equipment outlet, moves up to a predetermined height, moves along the first horizontal movement stroke 912 in the horizontal direction, moves to the first predetermined position, moves along the first descending movement stroke 913, and then moves toward the first stacking stroke 914 (toward the left in the figure) so that the first packaging bag group 915 is placed horizontally on the placement platform 100. Before the first stacking stroke 914, the first limit frame on the left side is first raised to a certain height, and the bottom of the packaging bag will first pass through the inclined first auxiliary support plate in a brushing posture, so that the packaging bag group 101 is in an inclined state, the bag opening is located on the right side of the bag bottom, and the height of the bag opening is higher than the height of the bag bottom, and then the bag bottom passes through the first limit frame in a brushing posture to ensure that a group of packaging bags are horizontally stacked on the placement platform 100 in a flat posture.

[0114] After the clamping head 210 completes the first clamping and stacking, it starts 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 mouth of the second packaging bag group 925, and then moves along the second ascending stroke 921. After ascending to a predetermined height, it moves along the second horizontal movement stroke 922 in the horizontal direction. After moving to the second predetermined position, it moves along the second descending movement stroke 923, and then moves toward 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 mouth is placed toward the side away from the equipment outlet end 10, and then the above steps are repeated, for example, 3 times of packaging, 4 times of packaging or even more times of packaging, so that the bag mouth and bag bottom of any two adjacent packaging bag groups 101 are in opposite directions. It should be noted that before the second stacking, the height of the first limit frame is roughly the same as that of the first group of stacked packaging bags. At this time, the height to which the second limit frame needs to be raised should be at least higher than the top surface of the first group of packaging bags and the height of the first limit frame, so that the second limit frame can smooth the bottom of the second group of packaging bags. Therefore, the first limit frame and the second limit frame are lifted in sequence.

[0115] For example, four groups of packaging bags are stacked in this packaging. 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 assembly press the packaging bag stack downward, and push the packaging bag stack and the receiving bottom plate to be conveyed toward the side of the coating mechanism 300. During the conveying process, the first limit frame and the second limit frame are lowered to below the placement platform 100 to avoid interference. When the packaging bag stack is conveyed through the coating channel 340, the protective film covers the periphery of the packaging bag stack. The cutting assembly 330 is arranged downstream of the film laying support 320. After the packaging bag stack passes through the coating channel 340 and is covered with the protective film, the cutting assembly 330 cuts off the protective film on the downstream side of the packaging bag stack in the conveying direction. The protective film is then transported to the entrance of the heating and plastic sealing chamber 410 through a conveyor belt and enters the heating and plastic sealing chamber 410. Conveyor rollers are sequentially extended in the heating and plastic sealing chamber 410, and a heating unit, such as a heating rod, a heating plate, etc., is also provided. When the conveyor rollers push the packaging bag stack to move, the protective film is heated and plastic-sealed, and finally transported to the labeling mechanism 600 to label the outer layer of the protective film.

[0116] Example 2

[0117] The implementation of this embodiment discloses a packaging bag packaging method, which is applied to any packaging bag packaging system in Example 1, see Figure 7 , the method comprising:

[0118] S1. The clamping mechanism 200 clamps a packaging bag group 101 from the device outlet 10 of the packaging bag forming device, and the clamping mechanism 200 clamps and transfers a packaging bag group 101 to the top of the placement platform 100, and stacks the packaging bag group 101 on the placement platform 100 along a first horizontal direction.

[0119] S2. The clamping mechanism 200 returns to the equipment outlet 10, clamps a 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 along a second horizontal direction opposite to the first horizontal direction.

[0120] S3, repeating the above 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 a plurality of packaging bag groups 101 in sequence in the vertical direction; and in the stack of packaging bags, in the same packaging bag group 101, the bag openings of the packaging bags are located on the same side in the vertical direction; and in two adjacent packaging bag groups 101, the bag openings and bag bottoms of each packaging bag group 101 are located on opposite sides in the vertical direction;

[0121] S4, the conveying mechanism 500 conveys the packaging bag stack along the conveying path to the downstream laminating mechanism 300, the laminating 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, and cuts off the protective film on the downstream side of the packaging bag stack in the conveying direction through the cutting component 330 of the laminating mechanism 300;

[0122] S5. The conveying mechanism 500 conveys the stack of packaging bags covered with the protective film to the heating and plastic sealing chamber 410, and heats the protective film to perform plastic sealing on the stack of packaging bags.

[0123] Furthermore, the packaging bag packing method further includes the following steps before step S1:

[0124] S0, laying a receiving bottom plate on the placement platform 100; and in step S1, the clamping mechanism 200 stacks a packaging bag group 101 on the receiving bottom plate. It should be noted that after executing step S0, in step S1, the clamping mechanism 200 stacks a packaging bag group 101 on the receiving bottom plate.

[0125] Furthermore, the packaging bag packing method further includes the following steps after step S5:

[0126] S6, conveying the plastic-sealed packaging bags to the labeling mechanism 600, and using the labeling mechanism 600 to stick labels on the plastic-sealed outer side of the packaging bags.

[0127] The packaging bag packing method disclosed in the present application can realize fully automated and efficient packaging, and can continuously perform clamping and stacking actions, thereby ensuring the continuous operation of the production line. In conjunction with the production speed and production capacity of high-speed packaging bag forming equipment, the packaging bags produced can be quickly packaged.

[0128] It should be noted that, in addition to the implementation methods of the present invention described in the above-mentioned specific embodiments, those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention is introduced in conjunction with the preferred embodiment, this does not mean that the features of this invention are limited to this implementation method. On the contrary, the purpose of introducing the invention in conjunction with the implementation method is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, the above description contains many specific details, and the present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0129] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0130] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when used. 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0131] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0132] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0133] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above is a further detailed description of the present invention in conjunction with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A packaging bag packaging system, characterized in that: The packaging bag packaging system is located downstream of the equipment outlet end of the packaging bag forming equipment, and includes a placement platform, a clamping mechanism, a laminating mechanism, a heating and plastic sealing mechanism, and a conveying mechanism; wherein The placement platform is located on the downstream side of the outlet end of the equipment; The clamping mechanism is arranged on the frame and can reciprocate between the outlet of the equipment and the placement platform to perform multiple clamping and stacking actions to form a stack of packaging bags in the stacking space on the placement platform; The film covering mechanism is located downstream of the placing platform in the packaging direction, receives the packaging bag stack from the placing platform and covers the outer periphery of the packaging bag stack with a protective film; The heating and plastic sealing mechanism is located downstream of the laminating mechanism in the packaging direction, and heats the protective film on the periphery of the packaging bag stack from the laminating mechanism, so that the protective film is heated and plastic-sealed to the peripheral surface of the packaging bag stack; The conveying mechanism sequentially passes through the laminating mechanism and the heating and plastic sealing mechanism from the placement platform to sequentially convey the packaging bag stack on the placement platform through the laminating mechanism and the heating and plastic sealing mechanism; wherein In each clamping and stacking action, the clamping head of the clamping mechanism approaches the outlet end of the device, clamps a packaging bag group and moves to the top of the placement platform, and stacks the packaging bag group horizontally in the stacking space; wherein the packaging bag group is formed by stacking a predetermined number of packaging bags, and the packaging bag stack is formed by stacking a plurality of packaging bag groups in sequence in the vertical direction; and In the stack of packaging bags, in the same packaging bag group, the bag openings of the packaging bags are located on the same side in the vertical direction; and in two adjacent packaging bag groups, the bag openings of the packaging bag groups are located on opposite sides in the vertical direction; wherein The clamping mechanism starts to clamp the first packaging bag group for stacking, the clamping head clamps the bag mouth of the first packaging bag group from the equipment outlet, moves upward to a predetermined height, moves along a first horizontal movement stroke in the horizontal direction, moves to a first predetermined position, moves along a first descending movement stroke, and then moves toward a first stacking stroke so that the first packaging bag group is placed horizontally on the placement platform; After the clamping head completes the first clamping and stacking, it starts to clamp the second packaging bag group. The clamping head of the clamping mechanism moves from the previous process to the equipment outlet end to clamp the bag mouth of the second packaging bag group, and then moves along the second ascending stroke. After rising to a predetermined height, it moves along the horizontal direction for a second horizontal movement stroke. After moving to the second predetermined position, it moves along the second descending movement stroke, and then moves toward the second stacking stroke so that the second packaging bag group is placed horizontally above the first packaging bag group, and the bag mouth of the second packaging bag group is placed toward the side away from the equipment outlet end, so that the bag mouth and bag bottom of any two adjacent packaging bag groups are in opposite directions.

2. The packaging bag packaging system according to claim 1, characterized in that: The clamping mechanism includes a horizontal drive assembly, a vertical drive assembly and a clamping assembly; wherein, One end of the horizontal driving assembly is fixed on the frame and above the outlet end of the equipment, and the other end extends horizontally to above the placement platform and has a horizontal movable part that can move horizontally; The vertical driving assembly is arranged on the horizontal movable part of the horizontal driving assembly and has a vertical movable part movable in a vertical direction, and the clamping assembly is arranged on the vertical movable part; and The horizontal driving assembly drives the horizontal movable part, links the vertical driving assembly and the clamping assembly to move in the horizontal direction, and the vertical driving assembly drives the vertical movable part, links the clamping assembly to move in the vertical direction; wherein 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 stroke distances of the horizontal transfer stroke are different, and the directions of the stacking stroke are opposite.

3. The packaging bag packaging system according to claim 2, characterized in that: in The horizontal driving assembly includes a horizontal driving unit, a horizontal guiding unit and a horizontal moving seat as the horizontal movable part, wherein the horizontal guiding unit is extended in the horizontal direction and one end of the horizontal moving seat is fixed to the frame, the horizontal moving seat can be arranged on one side of the horizontal guiding unit in a horizontally movably manner, and the horizontal driving unit is fixed to the horizontal guiding unit and can drive the horizontal moving seat to reciprocate on the horizontal guiding unit in the horizontal direction; and The clamping assembly includes a swinging portion and a clamping head, wherein the clamping head is arranged at the lower end of the swinging portion, the clamping head can be switched between an open state and a clamping state, and the swinging portion can swing within an angle range of -90° to +90° relative to the vertical direction.

4. The packaging bag packaging system according to claim 2, characterized in that: The packaging bag further comprises a bag body limiting mechanism, wherein the bag body limiting mechanism 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 arranged spaced apart from each other along the horizontal transfer direction of the horizontal transfer stroke, and a stacking space for placing the stack of packaging bags is defined between the first limiting frame and the second limiting frame; and In the horizontal transfer direction, the first and second auxiliary support plates are respectively arranged on the outer sides of the first limit frame and the second limit frame, the first and second auxiliary support plates are fixedly arranged on the placement platform, and the first and second auxiliary support plates are inclined along the horizontal transfer direction from the placement platform toward the stacking space.

5. The packaging bag packaging system according to claim 4, characterized in that: 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 staggered and lifted in sequence; wherein In each clamping and stacking action, before the clamping mechanism clamps one of the packaging bag groups to enter the stacking stroke, one of the first limit frame and the second limit frame on the side where the current stacking stroke starting position is located is lifted upward in the vertical direction relative to the placement platform until its top is higher than the other limit member and the height of the topmost packaging bag in the current stacking space in the vertical direction.

6. The packaging bag packaging system according to claim 2, characterized in that: It also includes a bottom plate placement mechanism, the bottom plate placement mechanism includes a bottom plate placement space located on one side of the placement platform, and a bottom plate placement component, one end of the bottom plate placement component is fixed to the frame, and the other end can reciprocate between the bottom plate placement space and the placement platform; wherein, the bottom plate placement component includes a placement swing arm and an adsorption component, one end of the placement swing arm is fixed to the frame and above the placement platform, the adsorption component is arranged at the other end of the placement swing arm, the placement swing arm can drive the adsorption component to reciprocate between the bottom plate placement space and the placement platform, and a plurality of receiving bottom plates are stacked in the bottom plate placement space; wherein The adsorption component adsorbs the outermost one of the multiple receiving base plates, and the placement swing arm drives the adsorption component and the receiving base plate to swing, and the receiving base plate is laid flat in the stacking space on the placement platform, and the packaging bags are stacked on the receiving base plate.

7. The packaging bag packaging system according to any one of claims 1 to 6, characterized in that: The film-laying mechanism comprises a material storage component, a film-laying support and a cutting component; wherein The material storage assembly comprises a material storage frame, a material storage roller shaft and a conveying roller shaft, wherein the material storage roller shaft is arranged in the material storage frame, a protective film roll is fixedly sleeved on the material storage roller shaft, and the conveying roller shaft is arranged on one side of the material storage roller shaft and conveys the protective film; The film laying support is fixedly arranged on the conveying mechanism and located on the transmission path of the packaging bag stack. A film covering channel is provided below the film laying support for the packaging bag stack to pass through. The protective film passes through the conveying roller in sequence and is laid on the film laying support. The protective film on the film laying support covers the film covering channel in the vertical direction. When the packaging bag stack is conveyed through the film covering channel, the protective film covers the outer periphery of the packaging bag stack. The cutting assembly is arranged downstream of the film laying support. After the packaging bag stack passes through the film covering channel and is covered with the protective film, the cutting assembly cuts off the protective film on the downstream side of the packaging bag stack in the conveying direction. The cutting assembly includes a cutter support, a transverse cutter and a driving unit. in The cutter support is arranged on the transmission path downstream of the film laying support, and the transverse cutter is in transmission connection with the driving unit, and the driving unit can drive the transverse cutter to reciprocate in the vertical direction; and A lifting and moving pressing plate is also arranged on the downstream side of the cutter support.

8. The packaging bag packaging system according to claim 7, characterized in that: The material storage rack is located on one side of the transmission path of the packaging bag stack, and the transmission direction of the protective film is perpendicular to the direction of the transmission path of the packaging bag stack; wherein The film laying support includes an inclined guide frame spanning the transmission path, and the length dimension of the inclined guide frame is greater than the width dimension of the transmission path; the protective film is wound around the inclined guide frame and laid on the transmission path of the packaging bag stack, and the width dimension of the protective film is greater than the width dimension of the transmission path.

9. The packaging bag packaging system according to claim 7, characterized in that: The heating and plastic sealing mechanism comprises a heating and plastic sealing chamber, and the heating and plastic sealing chamber comprises a plastic sealing inlet and a plastic sealing outlet arranged at intervals along the transmission path; wherein, A heating unit is arranged in the heating and plastic sealing chamber, and a transmission mechanism in the heating and plastic sealing chamber extends from the plastic sealing inlet to the plastic sealing outlet.

10. The packaging bag packaging system according to claim 7, characterized in that: The conveying mechanism includes a first conveying mechanism and a second conveying mechanism, wherein 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 plastic sealing mechanism; The first conveying mechanism comprises a conveying driving unit, a conveying guiding unit and a pressing and pushing component, wherein the conveying guiding unit extends from one side of the placing platform toward one side of the laminating mechanism, and the conveying driving unit can drive the pressing and pushing component to reciprocate along the conveying guiding unit; The second conveying mechanism comprises a conveying belt, one end of which is located at the outlet of the film-laminating mechanism, and the other end of which extends out of the outlet of the heating and plastic-sealing mechanism.

11. The packaging bag packaging system according to claim 7, 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 arranged on the labeling bracket. A plurality of labels are pasted on the labeling conveyor belt at intervals. When the stack of packaging bags is conveyed to the labeling bracket, one of the labels is pasted on the protective film on the surface of the stack of packaging bags.

12. A packaging bag packaging method, characterized in that: The method is applied to the packaging bag packaging system according to any one of claims 1 to 11, and the method comprises: S1, the clamping mechanism clamps a packaging bag group from the device outlet end of the packaging bag forming device, the clamping mechanism clamps and transfers the packaging bag group to the top of the placement platform, and stacks the packaging bag group on the placement platform along a first horizontal direction; S2, the clamping mechanism returns to the exit end of the equipment, clamps a new packaging bag group and moves the new packaging bag group to the top of 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, repeating the 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 a plurality of packaging bag groups in sequence in a vertical direction; and in the stack of packaging bags, in the same packaging bag group, the bag openings of the packaging bags are located on the same side in the vertical direction; and in two adjacent packaging bag groups, the bag openings and bag bottoms of each packaging bag 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 laminating mechanism, the laminating 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, and cuts off the protective film on the downstream side of the stack of packaging bags in the conveying direction by the cutting component of the laminating mechanism; S5. The conveying mechanism conveys the stack of packaging bags covered with the protective film to a heating and plastic-sealing chamber, and heats the protective film to perform plastic-sealing on the stack of packaging bags.

13. The packaging bag packing method according to claim 12, characterized in that: Before step S1, the following steps are also included: S0, laying the receiving bottom plate flat on the placement platform; and In the step S1, the clamping mechanism stacks the one packaging bag set on the receiving bottom plate.

14. The packaging bag packing method according to claim 12, characterized in that: After step S5, the method further includes the following steps: S6, conveying the plastic-sealed packaging bag stack to a labeling mechanism, and using the labeling mechanism to stick labels on the plastic-sealed outer side of the packaging bag stack.

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