Three-dimensional bag production equipment and production process

Abstract

The present application provides a three-dimensional bag manufacturing equipment and manufacturing method, the equipment includes a frame and feeding, bag mouth folding, and forming. The feeding station conveys the sheets one by one through the sheet feeding device; the bag mouth folding station uses the bag mouth folding device to fold the two sides of the sheet in the length direction to form the bag mouth folding, and at least one bag mouth folding is opened at a preset angle; the forming station folds the sheet through the bag body forming mechanism to form the bag body, and the folding plug-in mechanism drags the bag mouth folding to be misaligned and plugged, and the bag body sealing mechanism seals. The manufacturing method includes the steps of sheet material feeding, head card placement, handle fixing, bag mouth folding, bag body forming, folding plug-in, bag body sealing, bag folding and bottom card placement. The equipment and method simplify the production process, improve the production efficiency and yield rate, ensure the aesthetics and structural stability of the bag body, and at the same time, the equipment is compact and occupies a small space, which meets the land requirements of manufacturers, and can prevent the formed bag body from being pulled and damaged, thereby extending the service life.

Description

Technical Field

[0001] The present application relates to the technical field of three-dimensional bag manufacturing, and in particular to a three-dimensional bag manufacturing device and a manufacturing process. Background Art

[0002] A three-dimensional bag is a bag with a three-dimensional structure. Compared with traditional flat bags, it is more efficient in space utilization and can hold more items. In the development of the packaging industry, with the increasing variety of goods and the improvement of consumers' packaging requirements, traditional flat bags have gradually failed to meet the needs. Therefore, three-dimensional bags came into being, and its appearance brought new changes to commodity packaging. Early three-dimensional bags were mainly used for the packaging of some special commodities, such as food, cosmetics, etc. With the continuous advancement of technology and the continuous expansion of application fields, three-dimensional bags are now widely used in various industries, such as logistics, e-commerce, retail, etc.

[0003] Common three-dimensional bags include paper three-dimensional bags, plastic three-dimensional bags, composite three-dimensional bags, and aluminum foil three-dimensional bags. Taking paper three-dimensional bags as an example, due to the relatively low strength of the paper itself, its mechanical properties such as tensile strength and tear strength are low, and it is easy to break when impacted by external forces, especially the bag mouth is prone to cracking. In response to this, the bag mouth is designed with a folding edge. When in use, the bag mouth folding edge can not only play a good sealing role, but also effectively prevent the leakage of items in the bag. And the bag mouth folding edge can also provide additional protection to reduce the friction and discomfort of the bag on the hand. Especially when the bag is loaded with heavy objects, the folding edge can disperse the weight, reduce the pressure on the skin and muscles of the hand, and make the user more comfortable.

[0004] In the prior art, when producing a three-dimensional bag with a bag mouth folded edge, the first solution is to set up a folding machine after the bag body of the three-dimensional bag is formed, and use the folding machine to fold the formed bag; when the three-dimensional bag is made in this way, the bag mouth folded edge connection will be better sealed, and the folded edge seam is also more beautiful. On the one hand, this solution will result in a larger volume of the three-dimensional bag making equipment, which will require a larger space and cannot meet the land requirements of some manufacturers. On the other hand, when using this solution to fold the three-dimensional bag, it is necessary to first turn the bag mouth outside, fold it inward and other steps to complete the process. Not only are the process steps complicated, but the production efficiency is low; and after the bag body is formed, there is a greater risk of damage to the bag body due to the multiple steps of operating the bag body, which affects the yield of the three-dimensional bag production. Another solution is to fold the bag body before forming it, and directly stack and glue the bag mouth folded edges during forming. Although this solution improves the production efficiency, the thickness of the bag mouth folded edge is too large, which affects the aesthetics. On the other hand, the strength of the bag mouth folded edge connection will be greatly weakened, which affects the structural reinforcement performance of the bag mouth folded edge on the three-dimensional bag.

[0005] In summary, the three-dimensional bag with bag opening fold in the prior art has the problem of not being able to simultaneously improve product quality and production efficiency during production. Summary of the invention

[0006] The purpose of the present application is to solve the above-mentioned defects of the existing three-dimensional bag making equipment, and to provide a three-dimensional bag making equipment and a making method.

[0007] First, the present application provides a three-dimensional bag manufacturing device, which is used to manufacture three-dimensional bags, which can be paper three-dimensional bags with handles, plastic three-dimensional bags, etc., or paper three-dimensional bags without handles, plastic three-dimensional bags, etc. The manufactured three-dimensional bag includes a bottom surface, two side surfaces located on both sides of the bottom surface, and the opposite sides of the two side surfaces overlap each other.

[0008] Regarding the three-dimensional bag manufacturing equipment provided in the present application, the manufacturing equipment includes a frame, and the frame is sequentially provided with a feeding station, a bag mouth folding station and a forming station along the production direction.

[0009] At the feeding station, a sheet material feeding device is provided, which is used to convey the sheets of formed three-dimensional bags to the next station one by one, thus ensuring the continuity of sheet material supply and laying the foundation for subsequent efficient production.

[0010] At the pocket hemming station, a pocket hemming device is provided at the pocket hemming station, which folds the sheet material conveyed to the pocket hemming station inwards on both sides in the length direction of the sheet material to form pocket hemming, wherein at least one of the pocket hemming formed on both sides in the length direction of the sheet material is opened at a preset angle relative to the inner wall of the sheet material body; such a design enables the pocket hemming to have a certain opening angle when the sheet material is pre-folded, so that when the bag body is subsequently formed, it is convenient for one of the pocket hemming to be inserted between the other pocket hemming opened relative to the side wall and the side wall, thereby providing a guarantee for the successful insertion of the pocket hemming during the subsequent bag body forming.

[0011] In the forming station, the forming station is provided with a bag forming mechanism, a folding and plugging mechanism and a bag sealing mechanism; wherein the bag forming mechanism is provided on the frame, and folds the corresponding area of ​​the sheet material conveyed to the forming station to form a bag; at least one side of the bag forming mechanism is provided with a folding and plugging mechanism, and the folding and plugging mechanism drags the two bag opening folding edges at the overlapping parts of the two sides of the bag body to be misaligned and plugged into each other; the bag sealing mechanism is provided on both sides of the bag forming mechanism, corresponding to the two sides of the bag body, and the bag forming mechanism seals the connection between the two side surfaces of the bag body after the folding and plugging of the bag opening. In this process, the folding and plugging mechanism provided on at least one side can drag the two bag opening folding edges at the overlapping parts of the two sides of the bag body to be misaligned and plugged into each other, and this method can accurately realize the plugging of the bag opening folding edges, thereby improving the success rate of plugging. At the same time, the bag sealing mechanism is arranged on both sides of the bag forming mechanism and corresponds to the two side surfaces of the bag body. After the bag mouth folding edge is inserted, the two side connection points of the bag body can be sealed, ensuring the connection strength and sealing of the bag body.

[0012] When making three-dimensional bags using the production equipment provided by the present application, the bag mouth folding edge can be plugged in and sealed during the bag body forming process. The bag mouth folding edge connection is smoother and the connection is more firmly plugged in, thereby ensuring the aesthetics and structural stability of the bag body, and no additional folding machine is required for subsequent processes such as bag mouth folding. Not only is the production process simple, it can also prevent the formed bag body from being pulled and damaged, and the entire production equipment is more compact and occupies less space, which can further meet the land needs of more manufacturers.

[0013] Furthermore, since at least one of the bag opening folds formed on both sides of the sheet in the length direction is opened at a preset angle relative to the inner wall of the sheet body when the bag opening fold is folded before the bag body is formed, the bag opening fold can be stably plugged in without performing the folding opening action at the connection during the forming process. The bag opening fold is sealed by this plugging method, which avoids additional operation steps and further simplifies the production process and equipment structure.

[0014] Therefore, this production equipment can not only efficiently produce three-dimensional bags with good aesthetics and high bag strength through continuous feeding, efficient folding and splicing sealing actions, and simplified processes, but also improve the success rate of splicing and sealing at the bag folding connection, thereby greatly improving the yield rate of three-dimensional bag production.

[0015] Furthermore, in the three-dimensional bag manufacturing equipment provided in the present application, the bag mouth folding device includes a pair of folding components respectively arranged on both sides of the length direction of the sheet material, each folding component includes a folding mechanism, which can be flipped around the width direction of the sheet material and arranged on the frame, and is located outside the corresponding side edge of the bag mouth folding station in the width direction of the frame. The folding mechanism can be flipped around the width direction of the sheet material so that the corresponding side of the sheet material in its length direction is folded to form a bag mouth folded edge.

[0016] When the device is started, the folding mechanism begins to flip around the width direction of the sheet material, and the corresponding side of the sheet material in the length direction will be folded along with the flipping of the folding mechanism, thereby forming a bag opening fold. This method of folding the bag opening fold by flipping is more in line with the bending characteristics of the sheet material, especially for paper sheets. Since paper sheets are relatively brittle, the invention can reduce the risk of tearing the paper sheet material by folding the bag opening fold compared to other bending methods.

[0017] Furthermore, at least one folding assembly also includes a support mechanism, which can be movably arranged on the frame along the length direction of the sheet material, and is located on the inner side of the corresponding side edge of the bag opening folding station in the width direction of the frame. The support mechanism can be moved to the bag opening folding on the corresponding side in the length direction of the sheet material, and support the inner side surface of at least one bag opening folding, so that the bag opening folding on the corresponding side is opened at a preset angle relative to the inner wall of the sheet material body. During the bag opening folding formation process, the support mechanism moves to the bag opening folding on the corresponding side in the length direction of the sheet material, and at this time, the support mechanism starts to play a role, and it supports the inner side surface of at least one bag opening folding. Due to the support of the support mechanism, the bag opening folding on the corresponding side can be opened at a preset angle relative to the inner wall of the sheet material body, which can ensure that the bag opening folding has good stability and plug-in performance in the opened state.

[0018] Compared with the traditional three-dimensional bag production, which may require the connection folding and opening action during the forming process to realize the bag opening, in the device of the present application, the bag opening folding edge is pre-opened at a preset angle through the support mechanism, and during the forming process, these opened bag opening folding edges can be naturally plugged into each other without the need for additional connection folding and opening action.

[0019] Furthermore, the present application utilizes the structural characteristics formed by the pre-opening of the bag mouth fold, so that the bag mouth fold can be tightly plugged together to achieve the sealing of the bag mouth. Compared with the traditional method, the complex operation step of opening the fold at the connection that may affect the quality is omitted, thereby simplifying the entire production process and equipment structure. During the process of folding the bag mouth, the equipment will simultaneously use the action of the support mechanism to realize the opening of the fold. There is no need to perform additional opening operations on the bag mouth fold subsequently, and the stable plugging and sealing of the bag mouth fold can be achieved, which improves production efficiency and reduces the complexity and difficulty of operation of the equipment.

[0020] Furthermore, in the manufacturing equipment of the three-dimensional bag provided by the present application, the support mechanism includes a support plate extending along the width direction of the sheet material, a support member arranged on the side of the support plate away from the sheet material, and an inclined surface extending obliquely from the inside to the outside along the length direction of the sheet material is formed at the end of the support member away from the sheet material, and when the bag opening fold is folded, the outer edge of the support plate is pressed against the folding edge indentation line preformed on the sheet material, and the inclined surface is supported on the inner side of the bag opening fold. The support mechanism stably supports the sheet material along the width direction of the sheet material through the support plate, and in particular, when in use, the support plate can be pressed against the fold of the bag opening fold on the sheet material, that is, the outer edge of the support plate is pressed against the folding edge indentation line preformed on the sheet material, so that when the folding mechanism folds the fold, the fold can be stably folded along the fold line, thereby ensuring the position accuracy of the folding of the bag opening fold.

[0021] Furthermore, the inclined surface design of the supporting member enables the bag opening fold to open along a preset inclined surface angle when folded, thereby achieving a certain opening angle of the bag opening fold. No additional opening action is required, thereby simplifying the production process. Since additional production steps are omitted, the operating efficiency of the equipment is improved and the production cost is reduced.

[0022] Secondly, the present application also provides a method for making a three-dimensional bag, which is applied to the three-dimensional bag making device of the above structure and includes the following steps:

[0023] S1, the sheet material feeding device conveys the stacked sheets one by one to the head card placement station;

[0024] S2, the header card placement device of the header card placement station places the header cards one by one in the header card placement area preset for the corresponding sheet material;

[0025] S3, the handle fixing device fixes the two ends of each handle to the edge of the handle opening on the corresponding sheet transported to the handle fixing station;

[0026] S4, the bag opening folding device opens and folds at least one bag opening folding edge on both sides in the length direction of the sheet material at a preset angle;

[0027] S5, the bag forming mechanism folds the corresponding area of ​​the sheet material to form a bag body;

[0028] S6, the folding and plugging mechanism drags one bag opening folding edge at the side connection of the bag body and another bag opening folding edge to be misaligned and plugged into each other;

[0029] S7, the bag sealing mechanism seals the side connection of the bag;

[0030] S8, the bag folding device presses the formed bag body into a folded state, and the bottom card placing device places the bottom card into the bag body.

[0031] When making handbags using the above-mentioned production method, the stacked sheets (which can be paper, plastic film or other materials suitable for making bags) are transported one by one to the header card placement station on the production line. This ensures that each sheet can be processed continuously and efficiently in the subsequent steps. At the header card placement station, the header cards (usually used to support the bag opening and increase its structural stability) are placed one by one at the preset position of each sheet. The position and number of the header cards can be determined according to the design requirements of the bag. Next, the handle (a handle for convenient carrying of the bag) is fixed to the sheet at the handle fixing station. The two ends of the handle are usually firmly attached to the preset handle opening edges on the sheet to ensure its stability and durability. At the bag mouth folding station, the bag mouth folding device folds at least one bag mouth in the length direction of the sheet material, specifically at a preset angle, in preparation for the subsequent plugging and sealing steps. The bag body forming mechanism then folds the corresponding area of ​​the sheet material to preliminarily form the shape of the bag body, specifically by folding the bottom, side or other parts of the sheet material to create the internal space and structure of the bag. Next, the folding plug-in mechanism plugs one bag mouth fold at the side connection of the bag body with another bag mouth fold in an offset manner. This plug-in method can enhance the structural strength of the bag mouth and provide a closure method without additional sealing or bonding. After the plug-in is completed, the bag body sealing mechanism seals the side connection of the bag body, specifically by sewing, bonding or other appropriate process methods to ensure the integrity and closure of the bag. Finally, the bag folding device presses the formed bag body into a folded state for easy storage and transportation, and the bottom card placing device places a bottom card in the bag body (to support the bag bottom and increase its structural stability). The completed bag is finally packaged, distributed or sold.

[0032] In the above steps, during the bag body forming process (steps S5 to S7), the bag mouth fold (processed in step S4) is folded and opened at a preset angle, and then the folding plug-in mechanism (step S6) is used to achieve dislocation plug-in. This step is followed by the bag body forming, ensuring that the bag mouth completes the key connection action during the forming process, and there is no need to perform the bag mouth folding process separately. After the plug-in is completed, the bag body sealing mechanism immediately seals the side connection (step S7). Such immediate processing not only ensures the firmness of the bag mouth, but also makes the connection smoother, thereby improving the aesthetics and structural stability of the bag body. Since the bag mouth fold has been folded before the bag body is formed (step S4), and this folding is opened at a preset angle, there is no need to perform additional connection folding and opening actions during the forming process, which simplifies the production process. The manufacturing equipment is more compact in structure, and because there is no need to add additional mechanical equipment or space for additional bag mouth processing steps, the compactness of the equipment not only reduces the floor space, but also reduces production costs and maintenance difficulties.

[0033] Furthermore, since the bag mouth fold has been plugged in and sealed during the forming process, the formed bag body has stronger structural stability at the connection and can resist the pulling of strong external forces, thereby extending the service life of the bag body. The formed bag body does not require additional pulling action, which is not only efficient but also does not cause the problem of the formed bag body being damaged by pulling.

[0034] To sum up, when using the production method provided in this application to produce three-dimensional bags, the combined effects of instant bag folding, plugging and sealing, process simplification and equipment compactness, improved production efficiency and yield rate, and prevention of the formed bag body from being pulled and damaged not only ensure the aesthetics and structural stability of the bag body, but also greatly improve the production efficiency and yield rate of the three-dimensional bags, which can meet the land use and production needs of more manufacturers. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A schematic diagram of the front view structure of a three-dimensional bag manufacturing device provided in an embodiment of the present application;

[0036] Figure 2 A schematic diagram of the three-dimensional structure of a three-dimensional bag manufacturing device provided in an embodiment of the present application;

[0037] Figure 3 A schematic diagram of the three-dimensional structure of the three-dimensional bag manufacturing equipment provided in an embodiment of the present application without the sheet material supply device;

[0038] Figure 4 A schematic diagram of the three-dimensional structure of a sheet material supply device in a three-dimensional bag manufacturing device provided in an embodiment of the present application;

[0039] Figure 5 A schematic diagram of the three-dimensional structure of a head card placement device in a three-dimensional bag manufacturing device provided in an embodiment of the present application;

[0040] Figure 6 A partially enlarged structural schematic diagram of a head card placement device in a three-dimensional bag manufacturing device provided in an embodiment of the present application from another perspective;

[0041] Figure 7 A schematic diagram of the three-dimensional structure of a handle fixing device in a three-dimensional bag manufacturing device provided in an embodiment of the present application;

[0042] Figure 8 A partially enlarged structural schematic diagram of a handle fixing device in a three-dimensional bag manufacturing device provided in an embodiment of the present application;

[0043] Fig. 9 A schematic diagram of the three-dimensional structure of a bag opening folding device in a three-dimensional bag manufacturing device provided in an embodiment of the present application;

[0044] Fig.10 A partially enlarged structural schematic diagram of a bag opening folding device in a three-dimensional bag manufacturing device provided in an embodiment of the present application;

[0045] Fig.11 A schematic diagram of a three-dimensional structure of a structure provided in a forming station of a three-dimensional bag manufacturing device provided in an embodiment of the present application;

[0046] Fig.12 A schematic diagram of the three-dimensional structure of a forming mold and a dragging component in a three-dimensional bag manufacturing device provided in an embodiment of the present application;

[0047] Fig.13 A schematic diagram of the three-dimensional structure of the folding and plugging mechanism of the three-dimensional bag manufacturing device provided in the embodiment of the present application including dragging the belt;

[0048] Fig.14 A schematic diagram of the three-dimensional structure of a three-dimensional bag made by the three-dimensional bag making device provided in an embodiment of the present application;

[0049] Fig.15 for Fig.14 A partial enlarged view of

[0050] Fig.16 A flow chart of a method for making a three-dimensional bag provided in an embodiment of the present application.

[0051] Description of reference numerals:

[0052] 1. Frame; 101. Production direction; 102. Width direction; 1001. Front; 1002. Side; 1003. Bag folding edge; 1004. Handle; 1005. Handle opening;

[0053] 10. Sheet material supply device;

[0054] 11. Sheet height adjustment mechanism; 12. Sheet transport mechanism;

[0055] 20. Head card placement device;

[0056] 21. Head card grabbing mechanism;

[0057] 22. Head card feeding mechanism; 221. Main feeding member; 222. Secondary feeding member; 223. Feeding guide member;

[0058] 23. Mounting seat;

[0059] 30. Handle fixing device;

[0060] 31. Handle supply mechanism;

[0061] 32. Handle grabbing mechanism;

[0062] 33. Handle fixing mechanism;

[0063] 40. Bag opening folding device; 401. Folding assembly;

[0064] 41. Support mechanism; 411. Support plate; 412. Support member;

[0065] 42. Folding mechanism; 421. Folding plate; 422. Flipping drive mechanism;

[0066] 43. Limiting mechanism;

[0067] 50. Molding station;

[0068] 51. bag forming mechanism; 511. forming mold; 512. forming area;

[0069] 52. Folding and plugging mechanism; 521. Drag component;

[0070] 53. Bag sealing mechanism; 531. Pushing component; 532. Sealing component;

[0071] 60. Sheet material conveying mechanism. DETAILED DESCRIPTION

[0072] The present application provides a three-dimensional bag manufacturing device and a manufacturing method. The three-dimensional bag manufacturing device manufactures three-dimensional bags by adopting the manufacturing method. The manufactured three-dimensional bags can be paper three-dimensional bags, plastic three-dimensional bags, etc. with handles, or paper three-dimensional bags, plastic three-dimensional bags, etc. without handles. The three-dimensional bag includes a bottom surface, two side surfaces located on both sides of the bottom surface, and the two opposite sides of the two side surfaces overlap each other. The manufacturing device can not only manufacture three-dimensional bags with good aesthetics and high bag strength with high efficiency through continuous feeding, efficient folding and plug-in sealing actions, and simplified processes, but also improve the success rate of plug-in sealing at the bag mouth folding connection, thereby greatly improving the yield rate of three-dimensional bag manufacturing.

[0073] In order to more clearly introduce the solution of the present invention, the manufacturing equipment and method of the three-dimensional bag are exemplified below with reference to the accompanying drawings.

[0074] First, the manufacturing equipment of this three-dimensional bag is demonstrated.

[0075] For the manufacturing equipment of the three-dimensional bag provided by this application, see Figures 1 to 3 In one embodiment of the present application, the manufacturing device includes a frame 1 as a supporting structure of the entire device, and the frame 1 is used to install and fix all other components. The frame 1 is sequentially provided with a feeding station, a bag mouth folding station and a forming station 50 along the production direction 101.

[0076] At the feeding station, a sheet material feeding device 10 is provided, and the sheet material feeding device 10 is used to convey the sheets of the formed three-dimensional bag to the next station one by one, thereby ensuring the continuity of the sheet material supply and laying the foundation for subsequent efficient production.

[0077] See also Figure 4The sheet feeding device 10 includes a sheet height adjustment mechanism 11 and a sheet conveying mechanism 12; the sheet height adjustment mechanism 11 is arranged on the frame 1 and is located on the upstream side of the feeding station. Sheets are stacked on the sheet height adjustment mechanism 11, and the top height of the sheets can be adjusted in the vertical direction; the sheet conveying mechanism 12 is arranged on the downstream side of the feeding station, and includes a first conveying assembly and a second conveying assembly arranged in sequence along the production direction; the first conveying assembly includes an extracting component, which extracts a sheet located at the top of the stacked sheets and conveys it to the inlet end of the second conveying assembly along the production direction; the second conveying assembly includes A conveying component that can move along the production direction, and the sheet material conveyed to the inlet end of the second conveying component at least partially adheres to the conveying component and is conveyed to the outlet end of the second conveying component via the conveying component; a correction component is also provided on the frame 1, located on the downstream side of the second conveying component, and the correction component includes a driving component and an adjusting component provided on the frame 1, and the adjusting component is transmission-connected to the power output end of the driving component and can move along the width direction 102 of the frame 1; when the sheet material is conveyed to the downstream end of the second conveying component, the driving component drives the adjusting component to push the sheet material to translate along the width direction 102 of the frame 1 to align with the feeding port of the next workstation.

[0078] In the sheet supply device 10, the sheet height adjustment mechanism 11 can be a liftable platform or tray, which is installed on the frame 1 and can be adjusted in height in the vertical direction through a lifting mechanism (such as an electric lifting column, a hydraulic cylinder or a pneumatic cylinder, etc.). When the top height of the sheet needs to be adjusted, the lifting mechanism will drive the platform or tray to rise or fall, thereby changing the overall height of the sheet placed thereon. In this way, it can be ensured that the sheet is supplied to the extraction component at an appropriate height, which is convenient for the extraction component to grasp smoothly. The extraction component can be a mechanical arm with a suction cup or a robot arm with a clamp, which is used to grasp the top one of the stacked sheets and move it to the entrance end of the second conveying component along the production direction. The movement of the extraction component can be powered by a driving mechanism such as a motor, a cylinder or a hydraulic cylinder. The conveying component can be a conveyor belt, a roller conveyor line or a sliding plate with a slide rail, which is used to carry the sheet conveyed by the extraction component and move it to the exit end along the production direction. The movement of the conveying component can be powered by a power source such as a motor or a hydraulic motor. The driving component can be a motor or a cylinder, which is used to provide power to push the adjusting component to move; the adjusting component can be a push plate, a sliding block or a retractable push rod, which is used to move in the width direction 102 of the frame 1 according to the instruction of the driving component, thereby pushing the sheet to correct the deviation.

[0079] Furthermore, in order to ensure the accuracy of the correction, the correction component can also be provided with a sensor (such as a photoelectric sensor, a position sensor, etc.). The sensor can detect the position information of the sheet and feed this information back to the control system; the control system adjusts the output of the driving component according to the feedback information, thereby controlling the moving trajectory and speed of the adjusting component.

[0080] During the working process, the staff first stacks the sheets on the sheet height adjustment mechanism 11, and then moves the sheets in the vertical direction through the sheet height adjustment mechanism 11 to change the height position of the sheets stacked on the sheet height adjustment mechanism 11, so that the top sheet of the stacked sheets is located within the extraction range of the extraction component. Then the stacked sheets are lifted by the extraction component and conveyed one by one to the conveying component of the second conveying component, and then the conveying component continuously conveys the sheets along the production direction, thereby ensuring that the sheets can be stably conveyed to the downstream end of the second conveying component. When the sheets are conveyed to the downstream end of the second conveying component, if the sheets are misaligned with the feed port of the next station, the driving component can drive the adjusting component to push the sheets to translate along the width direction 102 of the frame 1 to align with the feed port of the next station, thereby ensuring that the sheets can accurately enter the next station. Therefore, this setting method can make the sheet material reach the next workstation accurately, such as the rope threading workstation, the folding workstation, etc., so that the sheet material can be accurately processed in the next workstation without dimensional deviation, thereby ensuring the accuracy of the size of the produced paper bags and reducing the defective rate of the produced paper bags.

[0081] Furthermore, when the sheet material supply device 10 of the paper bag forming machine is used to convey the sheets to the paper bag machine, there is no need to manually place the sheets one by one for conveyance, thereby reducing the labor cost.

[0082] It should be understood that when the sheet material is conveyed to the paper bag machine through the sheet material feeding device 10 of such a paper bag forming machine, the conveying speed of the sheet material by the extraction component should be lower than the conveying speed of the conveying component to avoid the problem of sheet material interfering with each other during the conveying process, such as the problem of two adjacent sheets overlapping each other during the conveying process.

[0083] At the bag folding station, see Figure 1 , Figure 3 , Fig. 9 , Fig.10 , Fig.14 , Fig.15The pocket folding station is provided with a pocket folding device 40, which folds the sheet material conveyed to the pocket folding station inward on both sides in the length direction of the sheet material to form a pocket fold 1003, wherein at least one of the pocket folds 1003 formed on both sides in the length direction of the sheet material (see the width direction 102 of the frame) is opened at a preset angle relative to the inner wall of the sheet material body; such a design ensures that the pocket fold 1003 has a certain degree of opening when the sheet material is pre-folded, and when the bag body is subsequently formed, since the pocket fold 1003 is opened at a preset angle relative to the inner wall of the sheet body when being folded, the successful insertion of the pocket fold 1003 during the subsequent bag body forming is guaranteed.

[0084] It should be understood that the preset angle of the bag mouth fold 1003 refers to the specific angle formed when the bag mouth fold 1003 is folded relative to the bag body or the inner wall of the sheet during the bag mouth fold 1003 process. The specific value of the preset angle is not limited, for example, it can be set to any angle between 10° and 80°. By folding one of the bag mouth folds 1003 or two bag mouth folds 1003 corresponding to the side 1002 at a preset angle, the bag mouth fold 1003 on one side of the sheet can be completely folded, and the other can be folded at a preset angle; or the bag mouth folds 1003 on both sides of the sheet can be folded at a preset angle; the bag mouth folds 1003 formed in both ways can achieve stable plug-in during subsequent molding, thereby ensuring the success rate of the insertion of the bag mouth fold 1003, and further ensuring that the production equipment can produce qualified three-dimensional bags more efficiently.

[0085] The structure of the bag mouth folding device 40 is not limited. For example, a folding mechanism may be provided to fold the bag mouth folded by the folding mechanism, or a pushing mechanism may be provided to push the bag mouth folded by the pushing mechanism to achieve the folding.

[0086] The structure of the bag mouth folding device 40 including the folding mechanism 42 is introduced below by taking the bag mouth folding device 40 as an example:

[0087] See also Fig. 9 , Fig.10 , Fig.14 The bag mouth folding device 40 includes a pair of folding components 401 respectively arranged on both sides of the length direction of the sheet material, each folding component 401 includes a folding mechanism 42, and the folding mechanism 42 can be flipped around the width direction of the sheet material (refer to the production direction 101) and is arranged on the frame 1. The folding mechanism 42 is located outside the corresponding side edge of the bag mouth folding station in the width direction 102 of the frame 1. The folding mechanism 42 can be flipped around the width direction of the sheet material so that the sheet material is folded on the corresponding side in its length direction to form a bag mouth fold 1003.

[0088] It should be understood that, in the present application, the width direction of the sheet is the same direction as the production direction 101 of the frame.

[0089] When the device is started, the folding mechanism 42 begins to flip around the width direction of the sheet material, and the corresponding side of the sheet material in the length direction will be folded along with the flipping of the folding mechanism 42, thereby forming the bag opening fold 1003. This method of folding the bag opening fold 1003 by flipping is more in line with the bending characteristics of the sheet material, especially for paper sheets, because paper sheets are relatively brittle, the present application achieves the folding of the bag opening fold 1003 by bending, which can reduce the risk of the paper sheet material being torn compared to other bending methods.

[0090] Specifically, the folding mechanism 42 includes a folding plate 421 and a flipping drive mechanism 422. The folding plate 421 can be flipped on the frame 1 around the width direction of the sheet material, and is located below the corresponding side end of the sheet material at the bag folding station in the width direction 102 of the frame 1. The folding plate 421 is transmission-connected to the power output end of the flipping drive mechanism 422, and the flipping drive mechanism 422 drives the folding plate 421 to flip around the width direction of the sheet material.

[0091] Furthermore, at least one folding component 401 further includes a support mechanism 41, which can be movably arranged on the frame 1 along the length direction of the sheet material, and is located inside the edge of the corresponding side of the bag folding station in the width direction 102 of the frame 1. The support mechanism 41 can be moved to the bag folding 1003 on the corresponding side in the length direction of the sheet material, and support the inner side surface 1002 of at least one bag folding 1003, so that the bag folding 1003 on the corresponding side is opened at a preset angle relative to the inner wall of the sheet material body. During the formation of the bag folding 1003, the support mechanism 41 moves to the bag folding 1003 on the corresponding side in the length direction of the sheet material, and at this time, the support mechanism 41 starts to play a role, and it supports the inner side surface 1002 of at least one bag folding 1003. Due to the support of the support mechanism 41, the bag opening fold 1003 on the corresponding side can be opened at a preset angle relative to the inner wall of the sheet body, which can ensure that the bag opening fold 1003 has good stability and plug-in performance in the opened state.

[0092] Compared with the traditional three-dimensional bag manufacturing, which may require the connection folding and opening action during the forming process to realize the bag mouth forming, in the device of the present application, the bag mouth folding edge 1003 is pre-opened at a preset angle through the support mechanism 41, and during the forming process, these opened bag mouth folding edges 1003 can be naturally plugged into each other without the need for additional connection folding and opening action.

[0093] Furthermore, the present application utilizes the structural characteristics formed by the pre-opening of the bag mouth fold 1003, so that the bag mouth fold 1003 can be tightly plugged together to achieve the sealing of the bag mouth. Compared with the traditional method, the complicated operation step of opening the fold at the connection that may affect the quality is omitted, thereby simplifying the entire production process and equipment structure. During the process of folding the bag mouth 1003, the equipment will synchronously use the action of the support mechanism 41 to achieve the opening of the fold, and there is no need to perform additional opening operations on the bag mouth fold 1003 later, so that the bag mouth fold 1003 can be stably plugged and sealed, thereby improving production efficiency and reducing the complexity and difficulty of operation of the equipment.

[0094] Further, in the three-dimensional bag manufacturing device provided in the present application, see Fig.10 The support mechanism 41 includes a support plate 411 extending along the width direction of the sheet material, and a support member 412 arranged on the side of the support plate 411 away from the sheet material. The end of the support member 412 away from the sheet material is formed with an inclined surface extending obliquely from the inside to the outside along the length direction of the sheet material. When the bag mouth fold 1003 is folded, the outer edge of the support plate 411 is pressed against the folding indentation line preformed on the sheet material, and the inclined surface is supported on the inner side 1002 of the bag mouth fold 1003. The support mechanism 41 is stably supported along the width direction 102 of the sheet material by the support plate 411. In particular, when in use, the support plate 411 can be pressed against the fold of the bag mouth fold 1003 on the sheet material, that is, the outer edge of the support plate 411 is pressed against the folding indentation line preformed on the sheet material, so that when the folding mechanism 42 folds the fold, the fold can be stably folded along the folding line, thereby ensuring the position accuracy of the folding of the bag mouth fold 1003. The support member 412 may be specifically configured as a plurality of support ribs formed on the support plate 411 and spaced apart along the length direction of the support plate 411, and the upper sidewalls of the plurality of support ribs form an inclined surface. The number of support ribs is not limited, for example, it may be 4, 5, or more.

[0095] Furthermore, the inclined surface design of the supporting member 412 enables the bag opening fold 1003 to open along a preset inclined surface angle when folded, thereby achieving a certain opening angle of the bag opening fold 1003. No additional opening action is required, thereby simplifying the production process. Since additional production steps are omitted, the operating efficiency of the equipment is improved and the production cost is reduced.

[0096] Furthermore, the bag mouth folding device 40 also includes a limiting mechanism 43 movably arranged on the frame 1 in the vertical direction, and a pressure plate is arranged at the lower end of the limiting mechanism 43. When the sheet material is conveyed to the bag mouth folding station, the limiting mechanism 43 links the pressure plate to move downward and press the sheet material to be fixed relative to the table surface of the bag mouth folding station.

[0097] In the above-mentioned bag folding device 40, the bag folding device 40 includes a pair of folding components 401, a supporting mechanism 41, and a limiting mechanism 43, and each mechanism in the bag folding device 40 is also electrically connected to the control system of the whole machine, and the control system can be a control cabinet, etc.

[0098] A pair of folding assemblies 401 are respectively arranged on both sides of the length direction of the sheet material, and each folding assembly 401 includes a folding mechanism 42 and a flipping drive mechanism 422. The folding mechanism 42 is mainly composed of a folding plate 421, which can be flipped around the width direction of the sheet material and arranged on the frame 1, and is located below the corresponding side end of the sheet material at the bag mouth folding station. The flipping drive mechanism 422 is connected to the folding plate 421 in a transmission manner, and provides power to drive the folding plate 421 to flip around the width direction of the sheet material. The support mechanism 41 can be movably arranged on the frame 1 along the length direction of the sheet material, and is located on the inner side of the corresponding side edge of the bag mouth folding station. The support mechanism 41 includes a support plate 411 and a support member 412. The support plate 411 extends along the width direction of the sheet material, and is used to support the sheet material during the folding process. The support member 412 is arranged on the side of the support plate 411 away from the sheet material, and the end thereof away from the sheet material is formed with an inclined surface for supporting the inner side surface 1002 of the bag mouth folding edge 1003. The limiting mechanism 43 is movably arranged on the frame 1 in the vertical direction, and the limiting mechanism 43 is provided with a pressing plate. When the sheet material is conveyed to the bag mouth folding edge station, the limiting mechanism 43 links the pressing plate to move downward and press the sheet material, so that it is relatively fixed with the table surface of the bag mouth folding edge station.

[0099] Furthermore, the folding mechanism 42 may include a driving arm and a connecting rod mechanism in addition to the folding plate 421. The folding plate 421 may be designed as a flexible plate-like structure to accommodate sheets of different thicknesses and materials. And the portion of the folding plate 421 that is in direct contact with the sheet may be provided with a flexible protective pad to prevent damage to the sheet. The driving arm is connected to the folding plate 421 and is used to transmit the power of the flipping driving mechanism 422. The driving arm may be designed as a rod-like structure that can rotate around a fixed axis and is connected to the folding plate 421 through a connecting rod mechanism. The connecting rod mechanism is a transmission mechanism connecting the driving arm and the folding plate 421, and is used to convert the rotational motion of the driving arm into the flipping motion of the folding plate 421. The connecting rod mechanism may be designed as a four-bar linkage or other structure to ensure that the folding plate 421 can be flipped smoothly and accurately.

[0100] When the bag mouth folding device 40 is started, the control system first controls the limit mechanism 43 to move. The limit mechanism 43 can be a driving motor electrically connected to the control system, and the linkage pressing plate moves downward and presses the sheet material to be relatively fixed with the table of the bag mouth folding station to prevent the sheet material from moving and affecting the subsequent folding effect. Then the flip drive mechanism 422 starts to work. The flip drive mechanism 422 can also be a driving motor electrically connected to the control system to drive the folding plate 421 to flip around the width direction of the sheet material. The folding plate 421 contacts the sheet material during the flipping process and applies pressure to fold one side of the sheet material to form the bag mouth folding 1003. At the same time, the support mechanism 41 moves to the bag mouth folding 1003 on the corresponding side in the length direction of the sheet material, and the outer edge of the support plate 411 is pressed against the folding indentation line pre-formed on the sheet material, and the inclined surface of the support member 412 is supported on the inner side 1002 of the bag mouth folding 1003. Due to the support of the support mechanism 41 and the pressing of the folding plate 421, the bag opening folding edge 1003 opens at a preset angle relative to the inner wall of the sheet body. After the folding is completed, the bag opening folding edge 1003 can be stably plugged together because it is pre-opened. No additional folding and opening action at the connection is required to achieve the sealing of the bag opening. After completing the bag opening folding edge 1003 once, each component is reset and ready to enter the next cycle.

[0101] It should be understood that when the bag mouth folding device 40 is not started, the folding plate 421 is not higher than the table surface in the height direction. When the sheet is conveyed to the folding station, the bag mouth folding 1003 of the sheet is located above the folding plate 421. During the folding process, on the one hand, the pressing plate fixes the sheet; on the other hand, the support plate 411 will press the folding indentation line pre-formed on the sheet. Due to the guiding effect of the edge of the support plate 411 and the limiting effect of the pressing plate, the bag mouth folding 1003 will be accurately bent along the folding line, which provides a basis for the aesthetics of the subsequent bag body; and because the support plate 411 can also support the inner wall of the sheet body, it is more conducive to the stability of the subsequent folding plug-in action. The folding plate 421 and the support plate 411 are staggered in the width direction 102 of the frame 1 to prevent the folding plate 421 and the support plate 411 from interfering with each other during the action.

[0102] See also Figure 1 , Figure 3 , Fig.11 , Fig.14In the forming station 50 of the manufacturing equipment, the forming station 50 is provided with a bag forming mechanism 51, a folding edge plug-in mechanism 52 and a bag sealing mechanism 53; the bag forming mechanism 51, the folding edge plug-in mechanism 52 and the bag sealing mechanism 53 work together to form the folded edge processed sheet into a bag structure and seal it, especially after the bag forming mechanism 51 forms the bag, the bag forming mechanism 51 can plug the bag mouth folding edges 1003 at the two sides 1002 of the bag, and then the bag sealing mechanism 53 seals the bag, and the whole action can be completed in the forming station 50, which is not only more efficient; it can also ensure that the bag mouth folding edges 1003 at the two sides 1002 of the bag are more smoothly connected, so as to produce a more beautiful three-dimensional bag, and the connection of the bag mouth folding edges 1003 is plugged and then sealed, so that the bag mouth of the bag has higher strength.

[0103] Specifically, the bag forming mechanism 51 is arranged on the frame 1, and is used to fold the corresponding area of ​​the sheet material conveyed to the forming station 50 to form a bag body; at least one side of the bag forming mechanism 51 is provided with a folding edge plugging mechanism 52, and the folding edge plugging mechanism 52 drags the two bag opening folding edges 1003 at the overlapping parts of the two side surfaces 1002 of the bag body to be displaced and plugged into each other (such as Fig.15 As shown); it should be understood here that the folding and plugging mechanism 52 can be provided on one side of the bag forming mechanism 51, or the folding and plugging mechanism 52 can be provided on both sides of the bag forming mechanism 51.

[0104] Among them, when a folding and plug-in mechanism 52 is provided on one side of the bag forming mechanism 51, during the plugging process, the bag mouth folding 1003 of the bag body can be such that one front side 1001 of the bag body is fixed relative to the bag forming mechanism 51, and the other front side 1001 is dragged by the folding and plug-in mechanism 52; wherein, the front side 1001 of the bag body refers to the surface of the bag body adjacent to the side surface 1002, and the two front sides 1001 are arranged opposite to each other. When one front side 1001 is dragged, it will drive the side surface 1002 adjacent to it to move; for example, when the bag body is placed in the vertical direction (that is, the front side 1001 and the side surface 1002 of the bag body extend in the vertical direction), the folding and plug-in mechanism 52 is movably arranged in the vertical direction, directly dragging one front side 1001 to move. Since the front side 1001 and the side surface 1002 are both formed by folding the sheet material into one piece, the two are an integrated structure. In this regard, when a front side 1001 is dragged and moved in the vertical direction by the folding edge plug-in mechanism 52, its adjacent side surface 1002 will be simultaneously linked to move in the vertical direction. After a stroke of moving up and down in the vertical direction, one bag mouth fold 1003 is plugged into another bag mouth fold 1003; based on the above description, since the production equipment of the present application is in the bag mouth folding station, the bag mouth fold 1003 is opened at a preset angle relative to the inner wall of the sheet body, so it will be easier to insert when one bag mouth fold 1003 is plugged into another bag mouth fold 1003.

[0105] When the folding and plug-in mechanisms 52 are provided on both sides of the bag body forming mechanism 51, during the plug-in process, the two front sides 1001 of the bag body can be dragged by the folding and plug-in mechanisms 52; for example, the two front sides 1001 can be dragged in opposite directions along the vertical direction by the folding and plug-in mechanisms 52 and then reset, which will simultaneously link the adjacent side faces 1002 to move along the vertical direction with the same trajectory. After the side faces 1002 move up and down in the vertical direction for one stroke, one bag mouth folded edge 1003 is plugged into the other bag mouth folded edge 1003.

[0106] The structure of the bag forming mechanism 51 is not limited, and the bag forming mechanism 51 is described in detail below:

[0107] In one embodiment, see Fig.10 and Fig.11 The bag forming mechanism 51 includes a forming mold 511 movably arranged on the frame 1 in the vertical direction, and a forming area 512 is formed on the table of the forming station 50. The forming mold 511 moves in the vertical direction so that the sheet material located at the forming station 50 is wrapped around the outside of the forming mold 511 to form a bag body; the folding and plug-in mechanism 52 is movably arranged on at least one side of the forming mold 511 in the vertical direction, and the folding and plug-in mechanism 52 drags the front side 1001 of the corresponding side of the bag body to move back and forth in the vertical direction relative to the front side 1001 of the other side, so that the bag mouth folding edges 1003 at the upper ends of the two side surfaces 1002 of the bag body are displaced in the vertical direction and plugged into each other.

[0108] Specifically, the folding and plugging mechanism 52 can be set on one side of the forming mold 511, or on both sides. In specific implementation, the forming mold 511 is movably set on the frame 1 along the vertical direction, and the forming mold 511 has an outer contour that matches the desired bag shape (the mold can be designed with a cavity or groove inside) so that the sheet can be wrapped around its outside during the forming process. A driving device (such as a motor, a cylinder or a hydraulic cylinder, etc.) is provided to provide the forming mold 511 with moving power in the vertical direction. The table top of the forming station 50 is formed with a forming area 512 for accommodating and supporting the forming mold 511 and the bag being formed. The table surface can be a structure with high adhesion, such as a smooth plane through fine polishing, and the adhesion between the table surface and the sheet is improved by the principle of negative pressure.

[0109] When in use, the sheet is transported to the table of the forming station 50 by the conveying device and is located in the forming area 512. Under the action of the driving device, the forming mold 511 begins to move downward in the vertical direction. During the movement, the outer contour of the mold gradually contacts the sheet. As the forming mold 511 continues to descend, the sheet gradually deforms under the pressure of the mold and fits on the outer contour of the mold to form the basic shape of the bag body. At this time, the two side faces 1002 of the bag body and the bag mouth folding edge 1003 at the upper end have been initially formed. When the forming mold 511 descends to a predetermined position, for example, after the bag body is formed, the folding edge plug-in mechanism 52 starts to work. It first clamps the front side 1001 of the bag body (i.e., the side adjacent to the side 1002), and drags the side front 1001 in the vertical direction to move back and forth in the vertical direction relative to the other side front 1001. In this process, the bag mouth folding edges 1003 at the upper ends of the two side faces 1002 of the bag body are displaced in the vertical direction and plugged into each other. After the insertion is completed, the forming die 511 is driven by the driving device to move upward in the vertical direction and return to the initial position. At this time, the sealed bag body has been formed.

[0110] When the folding and plugging mechanism 52 is arranged on one side of the forming mold 511, the folding and plugging mechanism 52 is arranged on one side of the forming mold 511 and at a position corresponding to the front side 1001 of the corresponding side of the bag body; a bag body limiting component is arranged at a position of the forming mold 511 corresponding to the front side 1001 of the other side of the bag body, which is used to limit the front side 1001 of the other side of the bag body from moving in the vertical direction relative to the side wall of the forming mold 511; the folding and plugging mechanism 52 includes a dragging component 521 movably arranged in the vertical direction, and the dragging component 521 reciprocates in the vertical direction, dragging the front side 1001 of the corresponding side of the bag body to move back and forth in the vertical direction relative to the front side 1001 of the other side.

[0111] Specifically, the bag body limiting component can be designed in the form of a convex block, a baffle, a suction cup or a clamping device, etc., and fixed to the position corresponding to the front face 1001 on the other side of the bag body on the forming mold 511. During the descent of the forming mold 511, the bag body limiting component contacts the front face 1001 on the other side of the bag body and generates friction or extrusion force, thereby limiting the movement of the bag body in the vertical direction to prevent deformation or dislocation during the forming process. The dragging component 521 can be a cylinder push rod, a hydraulic piston rod, an electric push rod, a manipulator, etc. When in use, it moves back and forth in the vertical direction. When it is necessary to drag the side face 1002 of the bag body, the dragging component 521 extends and clamps or absorbs the front face 1001 on one side of the bag body. Then, the dragging component 521 moves in the vertical direction, so that the front faces 1001 on both sides of the bag body produce relative displacement, so that the bag mouth fold 1003 is dislocated in the vertical direction and plugged into each other. After the plugging is completed, the dragging component 521 retracts and returns to the initial position to prepare for the next plugging cycle.

[0112] When the folding and plug-in mechanisms 52 are arranged on both sides of the forming mold 511, the folding and plug-in mechanisms 52 are arranged on both sides corresponding to the forming mold 511 and the bag body, and the two folding and plug-in mechanisms 52 both include a dragging component 521 that can be movably arranged along the vertical direction; the dragging component 521 of one folding and plug-in mechanism 52 drags the front side 1001 of the corresponding side of the bag body upward and then resets, and the dragging component 521 of the other folding and plug-in mechanism 52 drags the front side 1001 of the other side of the bag body downward and then resets, so that the bag mouth folding edges 1003 at the upper ends of the two side surfaces 1002 of the bag body are displaced in the vertical direction and then plugged into each other.

[0113] When the bag folding edge 1003 is connected in this way, the dragging component 521 of one folding edge connection mechanism 52 is controlled to move upward, clamping or pressing the front side 1001 of the bag body to move upward; at the same time, the dragging component 521 of the other folding edge connection mechanism 52 is moved downward, clamping or pressing the front side 1001 of the other side of the bag body to move downward. During the movement of the dragging component 521, the front sides 1001 of the bag body produce relative displacement in the vertical direction, resulting in the vertical misalignment of the bag folding edge 1003. When the dragging component 521 reaches the predetermined position, the driving device controls it to reset and return to the initial position. At this time, the misaligned bag folding edges 1003 have been connected to each other.

[0114] The specific structure of the folding and plugging mechanism 52 is not limited.

[0115] In one possible implementation, see Fig.12 The dragging component 521 of the folding plug-in mechanism 52 can be a dragging plate arranged on the corresponding side of the forming mold 511 and at least one front side 1001 of the bag body. The dragging plate can be movably connected to the side wall of the forming mold 511 in the vertical direction, and when the sheet material is wrapped around the outside of the forming mold 511, the inner wall of the bag body on the corresponding side of the formed bag body is fitted with the outer wall of the dragging plate. The dragging plate moves in the vertical direction to drag the front side 1001 of the corresponding side of the bag body to reciprocate in the vertical direction relative to the front side 1001 on the other side.

[0116] Specifically, the shape and size of the drag plate need to match the front side 1001 of the bag body, and the outer wall of the drag plate can be precisely processed to ensure that it fits tightly with the inner wall of the bag body to avoid friction or sliding during the dragging process. When the drag plate needs to be connected to the side wall of the forming mold 511, it can be a sliding connection, a guide rail connection or other reliable connection methods. The drive of the drag plate can choose a cylinder, a hydraulic cylinder, an electric push rod, etc. as the driving device, and the specific selection needs to be comprehensively considered based on production requirements, cost budget, equipment space and other factors.

[0117] It should be understood that the drag plate can be an integral structure with the side wall of the molding die 511 , or can be an additional plate movably disposed on the side wall of the molding die 511 .

[0118] When the dragging plate and the side wall of the forming mold 511 form an integral structure, the side wall of the forming mold 511 is connected to the mold body in a movable manner in the vertical direction. For example, the mold body is provided with a slide rail, and the side wall of the forming mold 511 is connected to the mold body in a sliding manner through the slide rail. When in use, when the various surfaces of the bag body are folded over to wrap the mold, the outer wall of the dragging plate will also fit tightly with the inner wall of one front side 1001 of the bag body, and because the dragging plate is movable, it can drag one side front side 1001 of the bag body in the vertical direction.

[0119] In another possible implementation, see Fig.13 The dragging component 521 of the folding plug-in mechanism 52 can be a dragging belt arranged on the corresponding side of the forming mold 511 and at least one front side 1001 of the bag body. When the sheet material is wrapped around the outside of the forming mold 511, the dragging belt approaches and abuts against the outer wall of the bag body on the corresponding side of the bag body to drag the front side 1001 of the corresponding side of the bag body to reciprocate in the vertical direction relative to the front side 1001 of the other side.

[0120] Specifically, the dragging belt may be provided on one side of the forming mold 511, or may be provided on both sides of the forming mold 511. When the dragging belt is provided on one side of the forming mold 511, a suction cup may be provided on the other side wall of the forming mold 511. After the bag body is wrapped on the outside of the forming mold 511, the suction cup will absorb one front side 1001 of the bag body and fix it relative to the forming mold 511. The driving motor of the dragging belt or the driving motor drives the dragging belt to contact the other front side 1001 of the bag body and drives the dragging belt to rotate. At this time, the friction between the dragging belt and the other front side 1001 will break away from the other front side 1001 and move in the vertical direction. When one front side 1001 is adjacent to the side 1001, the dragging belt will rotate. When the side 1002 adjacent to one front face 1001 is on the outside, the other front face 1001 is dragged downward by the drag belt and then reset, so that the pocket folded edge 1003 of the adjacent side 1002 of the other front face 1001 is inserted into the pocket folded edge 1003 of the adjacent side 1002 of one front face 1001; when the adjacent side 1002 of one front face 1001 is on the inside, the other front face 1001 is dragged upward by the drag belt and then reset, so that the pocket folded edge 1003 of the adjacent side 1002 of one front face 1001 is inserted into the pocket folded edge 1003 of the adjacent side 1002 of the other front face 1001.

[0121] It should be understood that the drive motor or drive cylinder for dragging the belt may be provided with two (eg Fig.13In the scheme shown in the figure, one of the driving belts moves along the width direction 102 of the frame 1, that is, the driving belt abuts against the bag body or moves away from the bag body; the other drives the bag-taking belt to rotate to drag the front side 1001 of the bag body up and down,

[0122] See also Fig.13 When dragging belts are set on both sides of the forming mold 511, the two dragging belts are set in the same way; when in use, after the bag body is wrapped around the outside of the forming mold 511, the two dragging belts are driven and abut against the two front sides 1001 of the bag body.

[0123] In one embodiment, one of the dragging belts may only abut against one front side 1001 of the bag body without dragging it to move up and down, and the other dragging belt may drag the other front side 1001 of the bag body to move up and down to achieve the insertion of the bag opening fold 1003.

[0124] In another embodiment, one drag belt may drag one front side 1001 of the bag body upward and then reset, and another drag belt may drag the other front side 1001 of the bag body downward and then reset, thereby achieving the insertion of the bag opening fold 1003.

[0125] In the process of making a three-dimensional bag, after the above structural actions, the bag body is basically formed, and the bag body needs to be sealed and reinforced by the bag body sealing mechanism 53. Fig.11 , Fig.13 The bag body sealing mechanism 53 is arranged on both sides of the bag body forming mechanism 51, and the two bag body sealing mechanisms 53 correspond to the two side surfaces 1002 of the bag body. The bag body forming mechanism 51 seals the connection between the two side surfaces 1002 of the bag body after the bag mouth folding edge 1003 is plugged in. In this process, the folding edge plugging mechanism 52 arranged on at least one side can drag the two bag mouth folding edges 1003 at the overlapped part of the two side surfaces 1002 of the bag body to be misaligned and plugged in each other. This method can accurately realize the plugging of the bag mouth folding edges 1003, thereby improving the success rate of plugging. At the same time, the bag body sealing mechanism 53 is arranged on both sides of the bag body forming mechanism 51 and corresponds to the two side surfaces 1002 of the bag body. After the bag mouth folding edge 1003 is plugged in, the connection between the two side surfaces 1002 of the bag body can be sealed, thereby ensuring the connection strength and sealing of the bag body.

[0126] It should be understood that when the bag body is sealed, glue may be pre-coated at the connection between the two side surfaces 1002 of the bag body, and the bag body sealing mechanism 53 may press to glue and fix the two side surfaces 1002 of the bag body. Alternatively, the bag body sealing mechanism 53 may be a heat sealing mechanism. When the bag body is made of thermoplastic materials such as plastic or non-woven fabric, the bag body sealing mechanism 53 may directly thermoplastic seal the two side surfaces 1002 of the bag body.

[0127] In a feasible embodiment, the bag body sealing mechanism 53 can be configured as a hot-pressing sealing mechanism, and specifically, the hot-pressing sealing mechanism is mainly composed of a heating plate and a pressure device. The heating plate is embedded with a heating wire or a heating tube to provide the heat required for sealing. The pressure device is usually composed of components such as a cylinder or a spring, and is used to apply necessary pressure to the bag body during the sealing process. After the bag mouth folding edge 1003 is plugged in, the control system starts the heating plate to heat it to a predetermined temperature, and the pressure device (such as a cylinder) starts working to press the heating plate to the connection between the two sides 1002 of the bag body. After the predetermined sealing time, the control system turns off the heating plate, and the pressure device releases the pressure, thereby achieving the sealing of the bag body. The three-dimensional bag produced in this way can be a three-dimensional bag made of thermoplastic material.

[0128] In another feasible embodiment, the bag body sealing mechanism 53 can be configured as an ultrasonic sealing mechanism, and the ultrasonic sealing mechanism can be composed of an ultrasonic generator, a transducer, an horn and a welding head. The ultrasonic generator generates high-frequency electrical energy, which is converted into mechanical vibration energy by the transducer, and then amplified by the horn and transmitted to the welding head. The welding head directly contacts the connection between the two sides 1002 of the bag body, and the friction heat generated by the high-frequency vibration is used to achieve sealing. When in use, after the bag mouth folding edge 1003 is plugged in, the ultrasonic generator is started to generate high-frequency electrical energy and transmit it to the transducer. The transducer converts the electrical energy into mechanical vibration energy, and transmits it to the welding head after amplification by the horn. The welding head generates high-frequency vibration at the connection between the two sides 1002 of the bag body, so that the bag body material is partially melted and sealed together. The three-dimensional bag produced in this way can also be a three-dimensional bag made of thermoplastic material.

[0129] For a three-dimensional bag made of thermoplastic material, the bag body sealing mechanism 53 can also be an impulse sealing device, a fuse sealing device, etc.

[0130] In another possible implementation, see Fig.13 The three-dimensional bag can also be a three-dimensional bag made of non-thermoplastic materials, such as a paper three-dimensional bag, and the sheets of the paper three-dimensional bag are pre-coated with glue at the connection position. For processing such a three-dimensional bag, the bag body sealing mechanism 53 includes a pushing component 531 arranged on the frame 1, and a sealing component 532 connected to the power output end of the pushing component 531 by transmission. The pushing component 531 pushes the sealing component 532 along the length direction of the frame 1 ( Fig.13 The sealing member 532 moves in the left and right directions in the bag body so as to abut against and seal the connection between the side surfaces 1002 of the bag body.

[0131] Specifically, the pushing component 531 may include a motor, a reducer, a transmission shaft, etc., which are used to provide power for the sealing component 532 to move. The motor drives the transmission shaft to rotate through the reducer, thereby driving the sealing component 532 to move along the length direction of the frame 1. The sealing component 532 directly contacts and presses the connection between the side 1002 of the bag body to achieve sealing. According to the characteristics of the paper three-dimensional bag and the requirements of glue coating, the sealing component 532 can be in the form of a pressure roller, a flat plate pressing block, etc. The surface of the pressure roller or the flat plate pressing block can be covered with an elastic material to increase the sealing and uniformity when in contact with the bag body. When in use, after the bag mouth folding edge 1003 is plugged in, the motor is started to drive the transmission shaft to rotate through the reducer. The transmission shaft drives the sealing component 532 to move along the length direction of the frame 1 until it abuts and presses the connection between the side 1002 of the bag body, and maintains a certain pressure and time to ensure that the glue is fully cured and sealed.

[0132] It should be understood that the three-dimensional bag made of thermoplastic material can also be sealed by the above-mentioned gluing method, and this is not the only requirement of the present application.

[0133] Based on the above scheme, the production equipment provided by the present application can realize the insertion and sealing of the bag mouth folding edge 1003 during the bag body forming process when producing a three-dimensional bag. The connection of the bag mouth folding edge 1003 is smoother and the connection is more firmly connected, thereby ensuring the aesthetics and structural stability of the bag body, and no additional folding machine is required for subsequent processes such as bag mouth folding. Not only is the production process simple, it can also prevent the formed bag body from being pulled and damaged, and the entire production equipment is more compact and occupies less space, which can further meet the land use needs of more manufacturers.

[0134] Furthermore, since the bag opening fold 1003 is folded in advance before the bag body is formed, at least one of the bag opening folds 1003 formed on both sides in the length direction of the sheet opens at a preset angle relative to the inner wall of the sheet body, so that the bag opening fold 1003 can be stably plugged in without performing the folding opening action at the connection during the forming process. The bag opening fold 1003 is sealed by this plugging method, which avoids additional operation steps and further simplifies the production process and equipment structure.

[0135] Therefore, this production equipment can not only efficiently produce three-dimensional bags with good aesthetics and high bag strength through continuous feeding, efficient folding and splicing sealing actions, and simplified processes, but also improve the success rate of splicing and sealing at the bag mouth folding edge 1003 connection, thereby greatly improving the yield rate of three-dimensional bag production.

[0136] Based on the above-mentioned three-dimensional bag manufacturing equipment provided by the present application, a handbag with a handle can also be manufactured. Specifically, see Figure 1 , Figure 2 , Figure 3 , Figure 7 , Figure 8 , Fig.14 A handle fixing station is also provided on the frame 1 between the feeding station and the bag opening folding station, and a handle fixing device 30 is provided on the handle fixing station, and the handle fixing device 30 includes a handle supply mechanism 31, a handle grabbing mechanism 32 and a handle fixing mechanism 33 provided on the frame 1. The handle supply mechanism 31 is provided below the table where the handle fixing station is located, and is used to move the two ends of the handle 1004 to below the handle opening 1005 of the sheet material placed on the handle fixing station, the handle grabbing mechanism 32 is movably provided above the table where the handle fixing station is located in the vertical direction, and is used to grab the two ends of the handle 1004 from below the handle opening 1005 to above the handle opening 1005 and release it, and the handle fixing mechanism 33 is provided above the table where the handle fixing station is located and on one side of the handle grabbing mechanism 32, and is used to fix the two ends of the handle 1004 to the edge position of the handle opening 1005.

[0137] It should be understood that the sheet material is pre-formed with a handle opening 1005, and the handle supply mechanism 31 may be a linear slide rail or a pneumatic / electric push rod or other mechanism, which is used to accurately move the two ends of the handle 1004 (which may be a pre-formed metal ring, paper handle, plastic strip or cloth strip, etc.) to the handle opening 1005 of the sheet material placed on the upper table of the handle fixing station. When in use, the handles 1004 can be stored in the material bin of the supply mechanism and pushed to the designated position one by one by a mechanical arm or a push rod. The handle grabbing mechanism 32 includes a driving component, a grabbing component, and a rolling and sealing component arranged on one side of the grabbing component; the driving component drives the grabbing end of the grabbing component to reciprocate through the handle opening 1005 in a direction perpendicular to the handle fixing table and move the corresponding end of the handle from the bottom of the handle fixing table to the top; the rolling and sealing component includes a rolling and sealing wheel, and the driving component drives the rolling and sealing wheel to move in the direction of the plane where the handle fixing table is located, and rolls and seals the corresponding end of the handle moved to the top of the handle fixing table to the preset handle fixing part on the sheet. The handle fixing part refers to the area on the sheet where the handle is preset to be fixed or the area pre-coated with glue. Specifically, the driving component (such as a motor, a cylinder, etc.) is fixedly arranged on the frame 1 and is responsible for providing power. The grabbing component and the rolling and sealing component are respectively connected to the power output end of the driving component by transmission to realize the grabbing and sealing actions. The grabbing assembly and the rolling and sealing assembly are respectively connected to the power output end of the driving assembly; the grabbing assembly can be in the form of a suction cup, a clamping claw, etc., and can adaptively grab handles of different materials and sizes. The grabbing end reciprocates in a direction perpendicular to the handle fixing table surface to pull the handle 1004 from the bottom to the top. The rolling and sealing assembly is used to roll and seal the end of the handle to the preset handle fixing part on the sheet after the handle is grabbed to the top. The rolling and sealing wheel can also adopt a heating design, for example, a heating wire, a heating plate, etc. can be set inside the rolling and sealing wheel to enhance the sealing effect.

[0138] When the handle is fixed as a whole, the sheet is placed on the handle fixing station, on which a handle opening 1005 is pre-formed. The handle supply mechanism 31 moves the two ends of the handle 1004 to the bottom of the handle opening 1005. The driving component is started, driving the grabbing end of the grabbing component to reciprocate in a direction perpendicular to the handle fixing table surface, grabbing the two ends of the handle 1004 from the bottom and pulling it to the top. At the same time or later when the handle is grabbed to the top, the rolling and sealing component is started, and the rolling and sealing wheel moves in the direction of the plane where the handle fixing table surface is located, rolling and sealing the corresponding ends of the handle 1004 to the preset handle fixing part on the sheet. After rolling and sealing, the handle fixing mechanism 33 can also use heating technology to further reinforce and fix the handle, such as drying. After the handle is fixed, the sheet continues to enter the subsequent bag opening folding 1003 and other processes, and finally a handbag with a handle is made.

[0139] Regarding the above-mentioned driving component, and the driving relationship between the driving component and each mechanism, in an achievable embodiment, the driving component includes a first driving component and a second driving component; the grabbing component is transmission-connected to the power output end of the first driving component, and the first driving component drives the grabbing component to reciprocate in a direction perpendicular to the handle fixing table surface; the rolling and sealing component is transmission-connected to the power output end of the second driving component, and the second driving component drives the rolling and sealing wheel to move in the direction of the plane where the handle fixing table surface is located. Specifically, the grabbing component can be connected to the power output end of the first driving component through a transmission mechanism (such as gear transmission, belt transmission, cam transmission, etc.), and the first driving component drives the grabbing component to reciprocate in the vertical direction to achieve the grabbing and releasing action; the rolling and sealing component can also be connected to the power output end of the second driving component through a corresponding transmission mechanism. The second driving component drives the rolling and sealing wheel to move in the direction of the plane where the handle fixing table surface is located to roll and seal the handle.

[0140] It should be understood that this application does not make any specific requirement on the specific transmission mechanism to be adopted, and the specific selection should be based on actual production needs.

[0141] Furthermore, the driving assembly also includes a moving seat, which is movably arranged on the frame 1 in a direction parallel to the plane where the handle fixing table is located, the first driving component is fixedly arranged on the moving seat, and the second driving component is fixedly connected to the frame 1 and is transmission-connected to the moving seat; the grabbing assembly and the rolling and sealing assembly are both arranged on the moving seat, the first driving component drives the grabbing assembly to reciprocate relative to the moving seat in a direction perpendicular to the handle fixing table, and the second driving component drives the moving seat and links the grabbing assembly and the rolling and sealing assembly to move synchronously in the direction of the plane where the handle fixing table is located. Specifically, the moving seat serves as a carrier of the first driving component, the grabbing assembly and the rolling and sealing assembly to realize overall movement. In the initial state, the moving seat, the grabbing assembly and the rolling and sealing assembly are all in preset positions. When the handle needs to be grabbed, the control system sends a command to the first driving component, the first driving component starts and drives the grabbing component to move downward in the vertical direction to the grabbing position, the grabbing component performs the grabbing action and fixes the handle, after grabbing the handle, the controller sends a command to the second driving component, the second driving component starts and drives the moving seat to move in a direction parallel to the plane where the handle fixing table is located to the sealing position, during this process, the grabbing component and the rolling and sealing component move synchronously with the moving seat, during the movement, the rolling and sealing component rolls and seals the handle. The rolling method can make the handle end more flatly connected to the sheet material, and can be more fully connected to the sheet material.

[0142] Furthermore, the driving assembly also includes a swinging component, one end of which is arranged on the moving seat, and the rolling and sealing wheel is rotatably connected to the other end of the swinging component, and the rolling and sealing wheel can be translated relative to the grabbing component in the vertical direction. Through the design of this structure, even if the rolling and sealing component and the grabbing component are both arranged on the moving seat, the two move synchronously in the direction of the plane where the handle fixing table is located; when the grabbing component moves up and down to grab the handle, the rolling and sealing wheel of the rolling and sealing component can be translated relative to the grabbing component in the vertical direction, such as lifting, so as to avoid the rolling and sealing component abutting against the handle fixing table when the grabbing component moves downward, thereby interfering with the movement of the grabbing component in the vertical direction. After the grabbing component is lifted up and reset, the swinging component can drive the rolling and sealing wheel of the rolling and sealing component to descend, so that when the grabbing component moves synchronously in the direction of the plane where the handle fixing table is located, the rolling and sealing wheel of the rolling and sealing component is lowered and pressed on the end of the handle, and the end of the rolling handle is synchronously moved to be fixed.

[0143] The specific structure and setting mode of the swing component are not limited. In an achievable embodiment, the swing component includes an elastic swing arm, one end of which is connected to the mobile seat and the other end is connected to the rolling and sealing assembly. Specifically, one end of the elastic swing arm can be connected to the mobile seat by a hinge, a bolt connection or other connection mode that allows one end of the swing arm to rotate relative to the mobile seat. The other end of the elastic swing arm can be connected to the bracket or mounting seat 23 of the rolling and sealing wheel. When in use, when the grabbing assembly moves downward to grab the handle, the rolling and sealing assembly may interfere with the handle due to the proximity to the table surface where the handle is fixed. At this time, the elastic swing arm, due to its own elasticity, will allow the rolling and sealing wheel to be pushed by the table surface to lift up relative to the grabbing assembly, thereby avoiding interference. When the grabbing assembly completes grabbing and lifts up to reset, the elastic swing arm will gradually return to its original position due to its own elasticity or the action of external forces (such as gravity or springs, etc.), driving the rolling and sealing wheel to descend, and realizing rolling and sealing the handle. The elastic swing arm can be a spring, a compressible spring, etc.

[0144] In another feasible embodiment, the swing component includes a swing rod and a driving cylinder, one end of the swing rod is rotatably connected to the mobile seat, and the other end is rotatably connected to the rolling and sealing wheel, the driving cylinder is fixedly connected to the mobile seat and close to the other end of the swing rod, and the end of the telescopic rod of the driving cylinder is rotatably connected to the swing rod; wherein, the driving cylinder drives the swing rod to swing to link the rolling and sealing wheel to translate relative to the grabbing assembly in a direction perpendicular to the handle fixed table. Specifically, one end of the swing rod is connected to the mobile seat by a hinge or other rotatable connection method, so that the swing rod can be allowed to swing within a certain range. The other end of the swing rod is rotatably connected to the rolling and sealing wheel, and this connection also needs to ensure the relative movement of the rolling and sealing wheel in the vertical direction; for example, hinged. The driving cylinder can be fixedly connected to the mobile seat and close to the other end of the swing rod. The end of the telescopic rod of the driving cylinder is connected to the swing rod by a rotatable connection method, so that when the cylinder is extended and retracted, the swing rod can be driven to swing. When in use, when the grabbing assembly moves downward, the driving cylinder drives the swing rod to swing, so that the rolling and sealing wheel is lifted upward to avoid interference with the handle fixing table. When the grabbing assembly completes grabbing and lifts up to reset, the driving cylinder drives the swing rod to swing again, so that the rolling and sealing wheel descends. After the rolling and sealing wheel descends into place, as the grabbing assembly moves synchronously in the direction of the plane where the handle fixing table is located, the rolling effect of the rolling and sealing wheel will fix the end of the handle.

[0145] In the above solution, the position on the sheet material on one side of the handle opening 1005 may be pre-coated with glue, and the rolling action of the rolling and sealing wheel enables the handle end to fully contact with the glue to be fixed.

[0146] Based on the above three-dimensional bag production equipment, see Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 A head card placing station is also provided on the frame 1 between the feeding station and the handle fixing station, and a head card placing device 20 is provided on the head card placing station. The head card placing device 20 includes a head card grabbing mechanism 21 and a head card feeding mechanism 22; the head card feeding mechanism 22 is used to transport the head cards one by one to one side of the sheet material on the head card placing station, and the head card grabbing mechanism 21 is used to grab the head cards transported to one side of the sheet material to the head card placing area on the sheet material.

[0147] Specifically, the head card placement device 20 also includes a mounting seat 23 arranged on the frame 1, the head card grasping mechanism 21 and the head card feeding mechanism 22 are respectively located on opposite sides of the mounting seat 23, and the mounting seat 23 has a head card opening adapted to the head card, and the head card feeding mechanism 22 transports the head card to the opening area of ​​the head card opening; the head card grasping mechanism 21 includes a grasping member that can grasp the head card, a grasping driving member and a grasping guide member, the grasping driving member drives the grasping member to grasp the head card through the head card opening, and then moves along the grasping guide member and places the head card at a preset position of the substrate; the head card feeding mechanism 22 includes a main feeding member 221, a secondary feeding member 222, and a feeding guide member 223, the main feeding member 221 and the secondary feeding member 222 are located in the accommodating space on one side of the mounting seat 23, and move toward the mounting seat 23 along the feeding guide member 223 in turn, and supply the head card in the accommodating space to the opening area.

[0148] This head card placement device 20 includes a mounting seat 23 and a head card grabbing mechanism 21 and a head card feeding mechanism 22 arranged on both sides of the mounting seat 23. The mounting seat 23 is installed on the side of the substrate transported by the handbag production equipment, and the head card supplied by the head card feeding mechanism 22 can be moved and placed on a preset position of the substrate through the grabbing component.

[0149] Specifically, the grabbing driving member drives the grabbing member to move along the grabbing guide member. When the grabbing member passes through the head card opening of the mounting seat 23, it can grab the head card and move the head card along the grabbing guide member to place it at a predetermined position on the substrate. The grabbing guide member can ensure that the grabbing member remains stable during the movement and accurately places the head card at a preset position on the substrate.

[0150] The main feeding member 221 and the secondary feeding member 222 are located in the accommodation space on one side of the mounting seat 23, and move along the feeding guide member 223 toward the mounting seat 23 in turn to feed the head cards in the accommodation space to the head card opening area. For example, the main feeding member 221 first feeds the head cards to the head card opening area. Even after the head cards on the main feeding member 221 are fed to the head card opening area and are grabbed by the grabbing member, the secondary feeding member 222 immediately moves along the feeding guide member 223 to feed the next batch of head cards to the head card opening area, and the main feeding member 221 is returned and replenished with new head cards, ensuring that the grabbing member can always grab from the head card opening, realizing the continuous feeding of head cards, avoiding the problem of stopping the machine due to the exhaustion of the head cards, and thus improving production efficiency. At the same time, due to the uninterrupted feeding of the head cards, the process of stopping the machine for re-debugging is avoided, and the waste of substrates is also reduced.

[0151] Further, the secondary feeding member 222 is located on a side of the main feeding member 221 close to the mounting seat 23, and the secondary feeding member 222 can switch between an initial state staggered with the head card opening and a feeding state aligned with the head card opening, and the main feeding member 221 has an avoidance portion adapted to the secondary feeding member 222. The main feeding drive member drives the main feeding member 221 to move along the feeding guide member 223 toward the mounting seat 23 until the main feeding end of the main feeding member 221 is flush with the secondary feeding end of the secondary feeding member 222. The secondary feeding member 222 switches from the initial state to the feeding state, and the secondary feeding drive member drives the secondary feeding member 222 to move along the feeding guide member 223 toward the mounting seat 23, and feeds the head cards in the accommodating space to the head card opening area in sequence, and the main feeding drive member drives the main feeding member 221 to move away from the mounting seat 23 along the feeding guide member 223 to fill multiple head cards. In this solution, the secondary supply member 222 is cleverly designed on the side of the main supply member 221 close to the mounting seat 23. Such a layout helps to achieve continuous supply of head cards. At the same time, when the main supply member 221 supplies head cards, the secondary supply member 222 can switch to an initial state that is offset from the opening of the head card, ensuring that it will not block the main supply member 221 from supplying head cards.

[0152] In the extension direction of the feeding guide 223, the secondary feeding member 222 is located on the side of the main feeding member 221 close to the mounting seat 23, and the secondary feeding member 222 has an initial state and a feeding state. In the initial state, the secondary feeding member 222 is staggered with the head card opening to avoid interfering with the feeding process of the main feeding member 221; when the main feeding drive drives the main feeding member 221 to complete the feeding task and is flush with the secondary feeding member 222, the secondary feeding member 222 switches to the feeding state, aligns with the head card opening, and replaces the main feeding member 221 to feed the head card under the drive of the secondary feeding drive. This layout enables the secondary feeding member 222 to quickly switch to the feeding state after the main feeding member 221 completes the feeding, and replaces the main feeding member 221 to continue to feed the head card, while the main feeding member 221 moves in the direction away from the mounting seat 23 under the drive of the main feeding drive, so as to facilitate the addition of new head cards to the main feeding member 221.

[0153] The layout of the main supply member 221 and the secondary supply member 222 is compact, which improves space utilization and makes the entire head card placement device 20 more compact. In addition, the main supply member 221 has an avoidance portion that is compatible with the secondary supply member 222, ensuring that the main supply member 221 will not collide or interfere with the secondary supply member 222 during movement, thereby ensuring the smooth progress of the succession supply process.

[0154] It should be noted that the main feeding member 221 and the secondary feeding member 222 can be driven by different power sources respectively. Specifically, the head card feeding mechanism 22 also includes a main feeding driving member and a secondary feeding driving member. The main feeding driving member is used to drive the main feeding member 221 to move along the feeding guide member 223, and the secondary feeding driving member is used to drive the secondary feeding driving member to move along the feeding guide member 223. Of course, the main feeding member 221 and the secondary feeding member 222 can also be driven by the same power source, and this embodiment does not make the sole limitation to this.

[0155] The main feeding drive member includes a main feeding drive motor, and a main transmission belt is arranged between the main feeding drive motor and the main feeding member 221. The secondary feeding drive member includes a secondary feeding drive motor, and a secondary transmission belt is arranged between the secondary feeding drive motor and the secondary feeding member 222. Of course, the main feeding drive member and the secondary feeding drive member are not limited to motors, but can also be cylinders, hydraulic cylinders, etc. Similarly, the transmission mode between the main feeding drive motor and the main feeding member 221, the secondary feeding drive motor and the secondary feeding member 222 is not limited to the belt transmission mode, but can also be a worm gear, a chain transmission mode, and those skilled in the art can design it according to actual conditions and specific needs, and this embodiment does not make specific limitations on this.

[0156] This head card placement device 20 can be installed on the side of the substrate transported by the handbag production equipment through the mounting seat 23, and the head card supplied by the head card supply mechanism 22 can be moved and placed on the preset position of the substrate through the grabbing component.

[0157] Specifically, the grabbing driving member drives the grabbing member to move along the grabbing guide member. When the grabbing member passes through the head card opening of the mounting seat 23, it can grab the head card and move the head card along the grabbing guide member to place it at a predetermined position on the substrate. The grabbing guide member can ensure that the grabbing member remains stable during the movement and accurately places the head card at a preset position on the substrate.

[0158] The main feeding member 221 includes a main feeding plate extending parallel to the opening plane of the head card opening, and the main feeding plate is connected to the main feeding drive motor through a main transmission belt. It should be noted that, viewed in a direction perpendicular to the opening plane of the head card opening, the plate surface area of ​​the main feeding member 221 can be larger than the opening area of ​​the head card opening area, and of course, can also be equal to the opening area of ​​the head card opening area.

[0159] When this main supply plate is supplying head cards, multiple head cards can be stacked on the main supply plate along the thickness direction, and since the board area of ​​the main supply plate is greater than or equal to the opening area of ​​the head card opening area, it is ensured that the main supply plate can cover or at least match the size of the head card opening, thereby stably supporting and guiding the head cards to enter the head card opening area.

[0160] The secondary supply member 222 includes a secondary supply base plate drivingly connected to a secondary supply driving member, a plurality of secondary supply plug-ins spaced apart on the secondary supply base plate, and a plug-in driving member drivingly connected to the plurality of secondary supply plug-ins, and a plate driving member, wherein a plate surface of each secondary supply plug-in serving as a secondary supply end extends parallel to the opening plane.

[0161] The number of sub-supply boards may be two, three, four, or any other number. In the present embodiment, four sub-supply boards are used for illustration. Of course, the present embodiment does not impose a sole limitation on the number of sub-supply boards.

[0162] The avoidance portion is provided as a plurality of avoidance grooves on the main supply plate that are opposite to and matched with the plurality of sub-supply plug-ins in the extending direction of the supply guide 223. In this embodiment, four avoidance grooves are provided on the main supply plate. In addition, the plug-in plate driving member drives the plurality of sub-supply plug-ins to move in a direction parallel to the opening plane, toward or away from the main supply plate.

[0163] The secondary supply substrate serves as the main part of the secondary supply member 222, and is connected to the secondary supply driving member, that is, it is connected to the secondary supply driving motor through a secondary transmission belt, and links multiple secondary supply plug-ins to move along the supply guide member 223. Multiple plug-ins are arranged on the secondary supply substrate at intervals, and the board surface of each plug-in extends parallel to the opening plane, so that the plug-in plate can remain parallel to the opening plane during movement, thereby ensuring that after the plug-in plate driving member drives multiple secondary supply plug-ins to switch from the initial state to the supply state, the plug-in plate can smoothly supply the head card to the head card opening area.

[0164] This head card placement device 20 achieves head card placement through the following steps:

[0165] A plurality of head cards are stacked on the main supply member 221, and the specific number is not limited. The main supply drive member drives the main supply member 221 to move along the supply guide member 223 toward the mounting seat 23, and supplies the head cards in the accommodating space to the opening area of ​​the head card opening in sequence.

[0166] The grab driving member drives the grab member to grab the head card from the head card opening, move along the grab guiding member to and place it at a preset position of the substrate.

[0167] After the main feeding member 221 reaches the first position, the secondary feeding driving member drives the secondary feeding member 222 to move along the feeding guide member 223 toward the mounting seat 23, and feeds the head cards in the accommodating space to the head card opening area in sequence.

[0168] The main feeding driving member drives the main feeding member 221 to move away from the mounting seat 23 along the feeding guide member 223 and fill a plurality of head cards.

[0169] This head card placement method realizes the continuous supply and placement of head cards through the alternating supply of the main supply member 221 and the secondary supply member 222. Even if one of the main supply member 221 or the secondary supply member 222 is in the state of replenishing head cards, the other can still continuously supply head cards, thereby improving the production efficiency of handbags. In addition, the grabbing member can accurately grab the head card from the head card pile and place it accurately at the preset position of the substrate, ensuring product quality.

[0170] Based on the three-dimensional bag manufacturing equipment provided in the present application, a bag folding station and a bottom card placing station are also arranged on the frame 1 on the downstream side of the forming station 50; the bag folding station is provided with a bag folding device, which is used to press the formed bag body into a folded state, and the bottom card placing station is provided with a bottom card placing device, which is used to place a bottom card into the bag body.

[0171] Specifically, the structure of the bag folding device is not limited, for example, it may include a folding plate, a driving mechanism (such as a cylinder, a motor, etc.) and a guiding mechanism. The folding plate is the main component for performing the folding action, and its shape and number are designed according to the size of the bag body and the folding requirements. The driving mechanism is responsible for providing the power required for the movement of the folding plate, and the guiding mechanism ensures that the folding plate moves along a predetermined path. When the formed bag body is transported to the bag folding station, the control system will issue an instruction, the driving mechanism will start, and the folding plate will move toward the bag body. The folding plate folds the bag body in a predetermined order and angle until the desired folding state is reached. During the folding process, the guiding mechanism ensures that the folding plate can accurately contact the corresponding position of the bag body to avoid folding misalignment or damage to the bag body. After the folding is completed, the driving mechanism will drive the folding plate back to the initial position and wait for the arrival of the next bag body.

[0172] The structure of the bottom card placing device is not limited. For example, the bottom card placing device may include a bottom card storage unit, a conveying mechanism, a positioning mechanism, and a placing mechanism. The bottom card storage unit is used to store the bottom card to be placed, the conveying mechanism is responsible for conveying the bottom card from the storage unit to the placement position, the positioning mechanism ensures that the bottom card can be accurately positioned at the placement position, and the placing mechanism is responsible for placing the bottom card into the bag body. When the bag body is conveyed to the bottom card placing station, the control system will issue an instruction to start the conveying mechanism. The conveying mechanism takes the bottom card out of the storage unit and conveys it to the placement position along a predetermined path. During the conveying process, the positioning mechanism ensures that the position of the bottom card is accurate. When the bottom card reaches the placement position, the placing mechanism will start and smoothly place the bottom card into the bag body. After the placement is completed, the conveying mechanism and the placing mechanism will return to the initial position and wait for the arrival of the next bag body and bottom card.

[0173] Specifically, in the above scheme, the bottom card storage unit can be a container or a shelf for storing a large number of bottom cards to be placed. Specifically, it can be a simple stacking bin in which the bottom cards are neatly stacked together, or a complex storage system with a partition and guide structure to ensure that the bottom cards can be smoothly taken out and transported. When the bottom card placement device needs to take the bottom card, the control system will issue an instruction to start the conveying mechanism connected to the bottom card storage unit. The conveying mechanism can be a device such as a belt, a roller or a suction cup, which takes out the topmost bottom card from the storage unit and prepares to transport it to the next position. Of course, its specific structure can also refer to the head card placement device 20.

[0174] The conveying mechanism can also be a belt conveyor, a chain conveyor, a roller conveyor or a pneumatic conveying system. Under the command of the control system, the conveying mechanism starts working, takes the bottom card out of the storage unit, and smoothly conveys it to the placement position along a predetermined path. The positioning mechanism is used to ensure that the bottom card can be accurately positioned at the placement position. It can be a mechanical clamp, a pneumatic clamp or an electromagnet. The design of these positioning mechanisms depends on the shape and size of the bottom card and the accuracy requirements of the placement position. Before the bottom card is conveyed to the placement position, the positioning mechanism will first calibrate and locate the placement position. Then, when the bottom card reaches the placement position, the positioning mechanism will quickly and accurately clamp or absorb the bottom card to ensure that its position is accurate. The placement mechanism can be a cylinder, a motor-driven push rod, a suction cup or a mechanical arm. The design of the placement mechanism depends on the shape and size of the bag body, as well as the placement position and method of the bottom card. After the control system issues a command, the placement mechanism starts working. The bottom card can be smoothly placed in the bag body by pushing, adsorbing or grabbing. During the placement process, the placement mechanism will maintain appropriate force and speed to ensure that the bottom card can be accurately placed at the predetermined position in the bag body without causing damage to the bag body.

[0175] As mentioned above, the present application does not make any unique requirements on the specific structures of the bottom card placing device and the bag folding device, and they can be designed according to actual needs.

[0176] Further, see Figure 3 The feeding station, the head card placement station, the handle fixing station, the bag mouth folding station, the forming station 50, the bag folding station, and the bottom card placement station are all provided with a sheet material conveying mechanism 60, and the sheet material conveying mechanism 60 conveys the sheet material from the previous station to the next station at a preset interval time. The sheet material conveying mechanism 60 includes any one of a conveyor belt, a movable clamp, and a movable suction cup.

[0177] Specifically, when the sheet conveying mechanism 60 adopts a conveyor belt, the sheet conveying mechanism 60 may include a driving motor, a transmission roller, a conveyor belt body, a roller, a tensioning device, and the like. The driving motor provides power and drives the conveyor belt to circulate through the transmission roller. The roller is used to support the conveyor belt and carry the sheet to ensure smooth transportation. The tensioning device (such as a tensioning wheel) is used to adjust the tightness of the conveyor belt to prevent slipping or excessive relaxation. When the driving motor is started, the transmission roller starts to rotate, driving the conveyor belt to circulate. The sheet is placed on the conveyor belt and moves forward with the conveyor belt. By adjusting the speed of the driving motor and the tightness of the tensioning device, the conveying speed and stability of the conveyor belt can be controlled. When the production direction needs to be changed, it can be achieved by setting devices such as steering rollers or slide rails.

[0178] When the sheet conveying mechanism 60 adopts a movable clamp, the movable clamp may include a clamp body, a driving device (such as a cylinder, a motor, etc.), and a guide mechanism. The clamp body is used to clamp the sheet, and the driving device provides power to open and close the clamp. The guide mechanism ensures that the clamp maintains a stable trajectory during movement. When the control system issues an instruction, the driving device starts and drives the clamp body to move toward the sheet. When the clamp contacts the sheet, the clamp closes and clamps the sheet. Then, the driving device continues to work, driving the clamp and the sheet to move to the next station. After reaching the target position, the clamp opens to release the sheet.

[0179] When the sheet conveying mechanism 60 adopts a movable suction cup, the movable suction cup may include a suction cup body, a vacuum generating device (such as a vacuum generator), a driving device (such as a cylinder, a motor, etc.), and a guiding mechanism. The suction cup body is used to adsorb the sheet, and the vacuum generating device provides negative pressure to enable the suction cup to generate adsorption force. The driving device provides power to move the suction cup, and the guiding mechanism ensures that the suction cup maintains a stable trajectory during movement. When the vacuum generating device is started, the suction cup body generates negative pressure to adsorb the sheet. Then, the driving device starts to drive the suction cup and the sheet to move to the next station. After reaching the target position, the vacuum generating device stops working and the suction cup releases the sheet.

[0180] As mentioned above, the three-dimensional bag manufacturing equipment provided by the present application realizes automation of the three-dimensional bag production process through integrated manufacturing equipment. From the sheet-by-sheet conveying of the sheet, the placement of the head card, the fixing of the handle, the folding of the bag mouth, the forming of the bag body, the plugging of the folding edge, the sealing of the bag body, and the folding of the bag body and the placement of the bottom card, the entire process requires almost no manual intervention, which greatly improves the production efficiency, not only reduces the labor cost, but also shortens the product launch cycle.

[0181] Moreover, the pocket folding edge 1003 can be plugged and sealed during the bag body forming process, and the connection of the pocket folding edge 1003 is smoother and more firmly plugged, so as to ensure the aesthetics and structural stability of the bag body, and no additional folding machine is required for the subsequent bag folding process, which is not only simple in the production process, but also can prevent the bag body from being pulled and damaged after forming, and the entire production equipment is more compact and occupies less space, which can further meet the land use needs of more manufacturers. When the pocket folding edge 1003 is folded in advance before the bag body is formed, at least one of the pocket folding edges 1003 formed on both sides of the length direction of the sheet opens at a preset angle relative to the inner wall of the sheet body, so that the pocket folding edge 1003 can be stably plugged without the need to perform the folding and opening action of the connection during the forming process. The pocket folding edge 1003 is sealed by this plugging method, which avoids additional operation steps and further simplifies the production process and equipment structure. This production equipment, through continuous feeding, efficient folding and splicing sealing actions, and simplified processes, can not only efficiently produce three-dimensional bags with good aesthetics and high bag strength, but also improve the success rate of splicing and sealing at the bag mouth folding edge 1003 connection, thereby greatly improving the yield rate of three-dimensional bag production.

[0182] See also Fig.15 And combined Figure 1 , Figure 2 , Figure 3 , Fig.11 , Fig.14 , Fig.15 The present application also provides a method for manufacturing a three-dimensional bag having the above structure, and the method comprises the following steps:

[0183] S1, the sheet material feeding device 10 conveys the stacked sheets one by one to the head card placement station;

[0184] S2, the header card placement device 20 of the header card placement station places the header cards one by one in the header card placement area preset for the corresponding sheet material;

[0185] S3, the handle fixing device 30 fixes the two ends of each handle to the edge of the handle opening 1005 on the corresponding sheet transported to the handle fixing station;

[0186] S4, the pocket folding device 40 opens and folds at least one pocket folding edge 1003 on both sides in the length direction of the sheet at a preset angle;

[0187] S5, the bag forming mechanism 51 folds the corresponding area of ​​the sheet material to form a bag body;

[0188] S6, the folding and plugging mechanism 52 drags one bag opening folding 1003 at the connection of the middle side surface 1002 of the bag body and plugs it into the other bag opening folding 1003 after they are misaligned;

[0189] S7, the bag sealing mechanism 53 seals the connection between the side surface 1002 of the bag;

[0190] S8, the bag folding device presses the formed bag body into a folded state, and the bottom card placing device places the bottom card into the bag body.

[0191] When the above-mentioned manufacturing method is used to make handbags, the stacked sheets (which can be paper, plastic film or other materials suitable for making bags) are transported one by one to the header card placement station on the production line. This ensures that each sheet can be processed continuously and efficiently in the subsequent steps. At the header card placement station, the header cards (usually used to support the bag opening and increase its structural stability) are placed one by one at the preset position of each sheet, and the position and number of the header cards can be determined according to the design requirements of the bag. Next, the handle (a handle for conveniently carrying the bag) is fixed to the sheet transported to the handle fixing station, and the two ends of the handle are usually firmly attached to the edges of the preset handle opening 1005 on the sheet to ensure its stability and durability. At the bag mouth folding station, the bag mouth folding device 40 folds at least one bag mouth in the length direction of the sheet material, specifically at a preset angle, in preparation for the subsequent plugging and sealing steps. The bag body forming mechanism 51 then folds the corresponding area of ​​the sheet material to preliminarily form the shape of the bag body, specifically by folding the bottom, side 1002 or other parts of the sheet material to create the internal space and structure of the bag. Next, the folding plug-in mechanism 52 plugs one bag mouth fold 1003 at the connection of the side 1002 of the bag body with another bag mouth fold 1003 by misalignment. This plug-in method can enhance the structural strength of the bag mouth and provide a closure method without additional sewing or bonding. After the plug-in is completed, the bag body sealing mechanism 53 seals the connection of the side 1002 of the bag body, specifically by sewing, bonding or other appropriate process methods to ensure the integrity and closure of the bag. Finally, the bag folding device presses the formed bag into a folded state for easy storage and transportation, and the bottom card placing device places a bottom card into the bag (to support the bottom of the bag and increase its structural stability). The completed bag is finally packaged, distributed or sold.

[0192] In the above steps, during the bag body forming process (steps S5 to S7), the bag mouth fold 1003 (processed in step S4) is folded and opened at a preset angle, and then the folding plug-in mechanism 52 (step S6) is used to achieve the dislocation plug-in. This step is followed by the bag body forming, ensuring that the bag mouth completes the key connection action during the forming process, and there is no need to perform the bag mouth folding process separately later. After the plug-in is completed, the bag body sealing mechanism 53 immediately seals the connection of the side 1002 (step S7). Such immediate processing not only ensures the firmness of the bag mouth, but also makes the connection smoother, thereby improving the aesthetics and structural stability of the bag body. Since the bag mouth fold 1003 has been folded before the bag body is formed (step S4), and this folding is opened at a preset angle, there is no need to perform additional connection folding and opening actions during the forming process, which simplifies the production process. The production equipment is made more compact in structure, and because there is no need to add additional mechanical equipment or space for additional bag opening processing steps, the compactness of the equipment not only reduces the footprint, but also reduces production costs and maintenance difficulties.

[0193] Furthermore, since the bag mouth fold 1003 has been plugged in and sealed during the molding process, the molded bag body has stronger structural stability at the connection and can resist the pulling of external forces, thereby extending the service life of the bag body. The molded bag body does not require additional pulling action, which is not only efficient but also does not cause the problem of the molded bag body being damaged by pulling.

[0194] In summary, when using the production method provided in the present application to produce three-dimensional bags, the immediate insertion and sealing of the bag mouth fold 1003, the simplification of the process and the compactness of the equipment, the improvement of the production efficiency and the yield rate, and the prevention of the formed bag body from being pulled and damaged, etc., not only ensure the aesthetics and structural stability of the bag body, but also greatly improve the production efficiency and yield rate of the three-dimensional bags, which can meet the land use and production needs of more manufacturers.

[0195] The above is a description of the implementation mode of the present application by specific specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Although the description of the present application will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this application are limited to the implementation mode. On the contrary, the purpose of introducing the application in conjunction with the implementation mode is to cover other options or modifications that may be extended based on the claims of the present application. In order to provide a deep understanding of the present application, many specific details will be included in the above description. The present application can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present application, some specific details will be omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0196] 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.

[0197] 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 product of the application is usually placed when in use. They are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the device or component 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 application.

[0198] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0199] 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.

Claims

1. A three-dimensional bag manufacturing device, the three-dimensional bag comprising a bottom surface and two side surfaces located on both sides of the bottom surface, wherein the two opposite sides of the two side surfaces overlap each other; characterized in that: It includes a frame, and the frame is provided with a feeding station, a bag folding station and a forming station in sequence along the production direction; wherein, The feeding station is provided with a sheet material feeding device, and the sheet material feeding device is used to transport the sheets for forming the three-dimensional bag to the next station one by one; The bag mouth folding station is provided with a bag mouth folding device, which folds the sheet material conveyed to the bag mouth folding station inwardly on both sides of the sheet material in the length direction to form a bag mouth fold, wherein at least one of the bag mouth folds formed on both sides in the length direction of the sheet material is opened at a preset angle relative to the inner wall of the sheet material body; The forming station is provided with a bag forming mechanism, a folding and plugging mechanism and a bag sealing mechanism; wherein, The bag forming mechanism is arranged on the frame, and folds the corresponding area of ​​the sheet material conveyed to the forming station to form a bag body; the folding and plugging mechanism is arranged on at least one side of the bag forming mechanism, and the folding and plugging mechanism drags the two bag opening folding edges at the overlapping parts of the two side surfaces of the bag body to be misaligned and plugged into each other; the bag sealing mechanism is arranged on both sides of the bag forming mechanism, corresponding to the two side surfaces of the bag body, and the bag forming mechanism seals the connection between the two side surfaces of the bag body after the bag opening folding edges are plugged; and, The bag mouth folding device includes a pair of folding components respectively arranged on both sides of the length direction of the sheet material, at least one of the folding components includes a supporting mechanism, the supporting mechanism can be movably arranged on the frame along the length direction of the sheet material, and is located on the inner side of the corresponding side edge of the bag mouth folding station in the width direction of the frame. The supporting mechanism can move to the bag mouth fold on the corresponding side in the length direction of the sheet material and support the inner side surface of at least one of the bag mouth folds, so that the bag mouth fold on the corresponding side is opened at a preset angle relative to the inner wall of the sheet material body.

2. The three-dimensional bag manufacturing device according to claim 1, characterized in that: in, Each of the folding components includes a folding mechanism, which can be set on the frame in a flipping manner around the width direction of the sheet material and is located outside the corresponding side edge of the bag mouth folding station in the width direction of the frame. The folding mechanism can be flipped around the width direction of the sheet material so that the corresponding side of the sheet material in its length direction is folded to form a bag mouth fold.

3. The three-dimensional bag manufacturing device according to claim 2, characterized in that: The support mechanism includes a support plate extending along the width direction of the sheet material, and a support member arranged on the side of the support plate away from the sheet material. The end of the support member away from the sheet material is formed with an inclined surface extending from the inside to the outside along the length direction of the sheet material. When the bag mouth fold is folded, the outer edge of the support plate is pressed against the fold indentation line pre-formed on the sheet material, and the inclined surface is supported on the inner side surface of the bag mouth fold.

4. The three-dimensional bag manufacturing device according to claim 3, characterized in that: The support member is configured as a plurality of support ribs formed on the support plate and distributed at intervals along the length direction of the support plate, and the upper side wall surfaces of the plurality of support ribs form the inclined surface.

5. The three-dimensional bag manufacturing device according to claim 2, characterized in that: The folding mechanism includes a folding plate and a flipping drive mechanism. The folding plate can be flipped on the frame around the width direction of the sheet material and is located below the corresponding side end of the sheet material at the bag mouth folding station in the width direction of the frame. The folding plate is transmission-connected to the power output end of the flipping drive mechanism, and the flipping drive mechanism drives the folding plate to flip around the width direction of the sheet material.

6. The three-dimensional bag manufacturing device according to claim 1, characterized in that: The bag mouth folding device also includes a limiting mechanism movably arranged on the frame in the vertical direction, and a pressing plate is arranged at the lower end of the limiting mechanism. When the sheet material is conveyed to the bag mouth folding station, the limiting mechanism links the pressing plate to move downward and press the sheet material to be fixed relative to the table surface of the bag mouth folding station.

7. The three-dimensional bag manufacturing device according to any one of claims 1 to 6, characterized in that: The bag forming mechanism comprises a forming mold movably arranged on the frame in a vertical direction, a forming area is formed on the table of the forming station, and the forming mold moves in a vertical direction so that the sheet material located at the forming station is wrapped around the outside of the forming mold to form the bag; and The folding and plug-in mechanism can be movably arranged on at least one side of the forming mold in the vertical direction. The folding and plug-in mechanism drags the front side of the corresponding side of the bag body to move back and forth in the vertical direction relative to the front side of the other side, so that the bag mouth folds at the upper ends of the two side surfaces of the bag body are staggered in the vertical direction and then plugged into each other.

8. The three-dimensional bag manufacturing device according to claim 7, characterized in that: The folding and plugging mechanism is arranged on one side of the forming mold, at a position corresponding to the front side of the corresponding side of the bag body; a bag body limiting component is arranged at a position of the forming mold corresponding to the front side of the other side of the bag body, for limiting the front side of the other side of the bag body from moving in the vertical direction relative to the side wall of the forming mold; and The folding and plugging mechanism comprises a dragging component movably arranged in the vertical direction, and the dragging component reciprocates in the vertical direction to drag the front side of the corresponding side of the bag body to reciprocate in the vertical direction relative to the front side of the other side.

9. The three-dimensional bag manufacturing device according to claim 7, characterized in that: The two sides of the molding die corresponding to the bag body are provided with the folding and plugging mechanisms, and the two folding and plugging mechanisms each include a dragging component that can be movably arranged in the vertical direction; wherein, The dragging component of one folding and plugging mechanism drags the front side of the corresponding side of the bag body upward and then resets, and the dragging component of the other folding and plugging mechanism drags the front side of the other side of the bag body downward and then resets, so that the bag opening folds at the upper ends of the two side surfaces of the bag body are offset in the vertical direction and then plugged into each other.

10. The three-dimensional bag manufacturing device according to claim 7, characterized in that: The folding and plug-in mechanism is a drag plate arranged on the corresponding side of the forming mold and at least one front side of the bag body, the drag plate is movably connected to the side wall of the forming mold in the vertical direction, and when the sheet material is wrapped around the outside of the forming mold, the inner wall of the bag body on the corresponding side of the bag body is formed to fit with the outer wall of the drag plate, and the drag plate moves in the vertical direction to drag the front side of the corresponding side of the bag body to reciprocate in the vertical direction relative to the front side of the other side; or The folding and plug-in mechanism is a dragging belt arranged on the corresponding side of the forming mold and at least one front side of the bag body. When the sheet material is wrapped around the outside of the forming mold, the dragging belt approaches and abuts against the outer wall of the bag body on the corresponding side of the bag body to drag the front side of the corresponding side of the bag body to reciprocate in the vertical direction relative to the front side of the other side.

11. The three-dimensional bag manufacturing device according to claim 7, characterized in that: The bag sealing mechanism includes a pushing component arranged on the frame and a sealing component transmission-connected to the power output end of the pushing component, wherein the pushing component pushes the sealing component to move along the length direction of the frame so that the sealing component abuts against and seals the side connection of the bag body.

12. The three-dimensional bag manufacturing device according to any one of claims 1 to 6, characterized in that: The frame is also provided with a handle fixing station between the feeding station and the bag opening folding station, and the handle fixing station is provided with a handle fixing device, and the handle fixing device includes a handle feeding mechanism, a handle grabbing mechanism and a handle fixing mechanism provided on the frame; wherein, The handle supply mechanism is arranged below the table surface where the handle fixing station is located, and is used for moving the two ends of the handle to below the handle opening of the sheet material placed on the handle fixing station; the handle grabbing mechanism is movably arranged in the vertical direction above the table surface where the handle fixing station is located, and is used for grabbing the two ends of the handle from below the handle opening to above the handle opening and releasing it; the handle fixing mechanism is arranged above the table surface where the handle fixing station is located and on one side of the handle grabbing mechanism, and is used for fixing the two ends of the handle to the edge position of the handle opening.

13. The three-dimensional bag manufacturing device according to claim 12, characterized in that: The frame is also provided with a head card placement station between the feeding station and the handle fixing station, and the head card placement station is provided with a head card placement device, and the head card placement device includes a head card grabbing mechanism and a head card feeding mechanism; wherein, The head card feeding mechanism is used to transport the head cards one by one to one side of the sheet material on the head card placement station, and the head card grabbing mechanism is used to grab the head cards transported to one side of the sheet material to the head card placement area on the sheet material.

14. The three-dimensional bag manufacturing device according to claim 13, characterized in that: The head card placement device also includes a mounting seat arranged on the frame, the head card grabbing mechanism and the head card feeding mechanism are respectively located on opposite sides of the mounting seat, and the mounting seat has a head card opening adapted to the head card, and the head card feeding mechanism transports the head card to the opening area of ​​the head card opening; wherein The head card grabbing mechanism comprises a grabbing member capable of grabbing the head card, a grabbing driving member and a grabbing guiding member, wherein the grabbing driving member drives the grabbing member to grab the head card through the head card opening, and then moves along the grabbing guiding member to place the head card at a preset position of the substrate; The head card feeding mechanism includes a main feeding member, a secondary feeding member, and a feeding guide member. The main feeding member and the secondary feeding member are located in a storage space on one side of the mounting seat, and move along the feeding guide member toward the mounting seat in turn to feed the head card in the storage space to the head card opening area.

15. The three-dimensional bag manufacturing device according to claim 13, characterized in that: The frame is also provided with a bag folding station and a bottom card placing station on the downstream side of the forming station; wherein, The bag folding station is provided with a bag folding device, and the bag folding device is used to press the formed bag body into a folded state. The bottom card placing station is provided with a bottom card placing device, and the bottom card placing device is used to place a bottom card into the bag body.

16. The three-dimensional bag manufacturing device according to claim 15, characterized in that: The feeding station, the head card placement station, the handle fixing station, the bag mouth folding station, the forming station, the bag folding station, and the bottom card placement station are all provided with sheet material conveying mechanisms, and the sheet material conveying mechanisms convey the sheet material from the previous station to the next station at a preset interval time.

17. The three-dimensional bag manufacturing device according to claim 16, characterized in that: The sheet material conveying mechanism comprises any one of a conveying belt, a movable clamping claw, and a movable suction cup.

18. The three-dimensional bag manufacturing device according to any one of claims 1 to 6, characterized in that: The sheet material supply device includes a sheet material height adjustment mechanism and a sheet material conveying mechanism; wherein, The sheet height adjustment mechanism is arranged on the frame and located at the upstream side of the feeding station. Sheets are stacked on the sheet height adjustment mechanism, and the top height of the sheet can be adjusted in the vertical direction. The sheet material conveying mechanism is arranged at the downstream side of the feeding station, and comprises a first conveying assembly and a second conveying assembly arranged in sequence along the production direction; the first conveying assembly comprises an extracting component, the extracting component extracts the sheet material located at the top of the stacked sheets and conveys it to the inlet end of the second conveying assembly along the production direction; the second conveying assembly comprises a conveying component movable along the production direction, the sheet material conveyed to the inlet end of the second conveying assembly at least partially adheres to the conveying component and is conveyed to the outlet end of the second conveying assembly via the conveying component; and, A deviation correction component is also arranged on the frame at the downstream side of the second conveying component, and the deviation correction component includes a driving component and an adjusting component arranged on the frame, and the adjusting component is transmission-connected to the power output end of the driving component and can move along the width direction of the frame; wherein, When the sheet material is conveyed to the downstream end of the second conveying assembly, the driving component drives the adjusting component to push the sheet material to translate along the width direction of the frame so as to be aligned with the material inlet of the next station.

19. A method for making a three-dimensional bag, characterized in that: The manufacturing method is applied to the manufacturing equipment of the three-dimensional bag according to any one of claims 1 to 18, and comprises the following steps: S1, the sheet material feeding device conveys the stacked sheets one by one to the head card placement station; S2, the head card placement device of the head card placement station places the head cards one by one in the head card placement area preset for the corresponding sheet; S3, the handle fixing device fixes the two ends of each handle to the edge of the handle opening on the corresponding sheet transported to the handle fixing station; S4, the bag opening folding device opens and folds at least one of the bag opening folds on both sides of the sheet in the length direction at a preset angle; S5, the bag forming mechanism folds the corresponding area of ​​the sheet material to form a bag body; S6, the folding edge plugging mechanism drags one of the bag opening folding edges at the side connection of the bag body and another bag opening folding edge to be plugged into each other after being misaligned; S7, the bag body sealing mechanism seals the side connection of the bag body; S8, the bag folding device presses the formed bag body into a folded state, and the bottom card placing device places a bottom card into the bag body.

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