CN119704777A

CN119704777A - Manufacturing equipment and manufacturing process of three-dimensional bag

Info

Publication number: CN119704777A
Application number: CN202510241504.0A
Authority: CN
Inventors: 黄星; 薛道隆
Original assignee: Zhejiang Ounuo Machinery Technology Co ltd
Current assignee: Zhejiang Ounuo Machinery Technology Co ltd
Priority date: 2025-03-03
Filing date: 2025-03-03
Publication date: 2025-03-28
Anticipated expiration: 2045-03-03
Also published as: CN119704777B

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

Manufacturing equipment and manufacturing process of three-dimensional bag

Technical Field

The application relates to the technical field of three-dimensional bag manufacturing, in particular to a manufacturing device and a manufacturing process of a three-dimensional bag.

Background

A three-dimensional bag is a bag having a three-dimensional structure that is more efficient in space utilization and capable of holding more items than conventional planar bags. In the development history of the packaging industry, with the increasing abundance of commodity types and the increasing demand of consumers for packaging, traditional planar bags are increasingly difficult to meet. The three-dimensional bag has thus emerged, bringing new innovations for the packaging of goods. The three-dimensional bag is mainly used for packaging special commodities, such as foods, cosmetics and the like, and is widely applied to various industries, such as logistics, electronic commerce, retail and the like nowadays along with continuous progress of technology and continuous expansion of application fields.

The common three-dimensional bags comprise a paper three-dimensional bag, a plastic three-dimensional bag, a composite three-dimensional bag and an aluminum foil three-dimensional bag, and the paper three-dimensional bag is taken as an example, and because the strength of paper is relatively low, the paper has low mechanical properties such as tensile strength, tear resistance and the like, and is easy to break when being impacted by external force, especially the bag mouth is easy to break. For this purpose, the mouth portion is provided with a flange design. When the bag is used, the bag opening folded edge not only can play a good sealing role, but also can effectively prevent the leakage of articles in the bag. And the pocket flap may also provide additional protection to reduce friction and discomfort of the pocket to the hand. Particularly, when the bag is loaded with heavy objects, the folded edges can disperse the weight, so that the pressing feeling to the skin and the muscles of the hands is reduced, and the user is more comfortable.

In the prior art, when the three-dimensional bag with the bag opening folded edge is produced, the first scheme is that after the bag body of the three-dimensional bag is molded, the molded bag is folded by the folding machine, and the three-dimensional bag is produced by adopting the mode, although the bag opening folded edge connecting position can be sealed well, and the folded edge sewing position is attractive. The scheme is characterized in that the bag body is formed by adopting a plurality of steps, namely, the bag mouth is turned outwards, folded inwards and the like, when the three-dimensional bag is folded, the bag body is complicated in process steps and low in production efficiency, the bag body is operated by adopting the steps after the bag body is formed, the risk of damage of the bag body is high, the manufacturing yield of the three-dimensional bag is influenced, the bag body is folded in advance, and the bag mouth folded edges are directly laminated and bonded during forming, so that the manufacturing efficiency is improved.

In conclusion, the three-dimensional bag with the bag opening folded edges in the prior art has the problem that the quality and the production efficiency of products cannot be improved at the same time during manufacturing.

Disclosure of Invention

The application aims to solve the defects of the conventional three-dimensional bag manufacturing equipment and aims to provide the three-dimensional bag manufacturing equipment and the three-dimensional bag manufacturing method.

Firstly, the application provides a manufacturing device of a three-dimensional bag, which is used for manufacturing the three-dimensional bag, wherein the three-dimensional bag can be a paper three-dimensional bag with a handle, a plastic three-dimensional bag and the like, or can be a paper three-dimensional bag without a handle, a plastic three-dimensional bag and the like. The three-dimensional bag comprises a bottom surface and two side surfaces positioned at two sides of the bottom surface, wherein the two opposite sides of the two side surfaces are overlapped with each other.

The manufacturing equipment for the three-dimensional bag comprises a frame, wherein the frame is sequentially provided with a feeding station, a bag opening flanging station and a forming station along the production direction.

At the feed station, the feed station is provided with a sheet feeding device, and the sheet feeding device is used for conveying sheets of the formed three-dimensional bag to the next station one by one, so that the continuity of sheet supply is ensured, and a foundation is laid for subsequent efficient production.

The bag mouth flanging station is provided with a bag mouth flanging device, the bag mouth flanging device inwards folds the two sides of the sheet material conveyed to the bag mouth flanging station in the length direction of the sheet material to form bag mouth flanging, at least one of the bag mouth flanging formed on the two sides of the sheet material in the length direction is opened at a preset angle relative to the inner wall of the sheet material body, the bag mouth flanging has a certain opening angle when the sheet material is folded in advance, and when the subsequent bag body is formed, one bag mouth flanging is conveniently inserted between the bag mouth flanging and the side wall which are opened relative to the side wall, so that guarantee is provided for success of the bag mouth flanging grafting when the subsequent bag body is formed.

The bag body forming mechanism is arranged on the frame and turns over corresponding areas of sheets conveyed to the forming station to form a bag body, the folding edge inserting mechanism is arranged on at least one side of the bag body forming mechanism, the folding edge inserting mechanism drags two bag mouth folds at the joint of two side faces of the bag body to be inserted mutually after misplacement, and the bag body sealing mechanism is arranged on two sides of the bag body forming mechanism and corresponds to the two side faces of the bag body, and seals the joint of the two side faces of the bag body after the folding edge inserting of the bag mouth. In the process, the folding edge inserting mechanism arranged on at least one side of the folding edge inserting mechanism can drag the two bag opening folding edges at the joint of the two side surfaces of the bag body to be inserted mutually after being staggered, so that the inserting of the bag opening folding edges can be accurately realized, and the inserting success rate is improved. Meanwhile, the bag body sealing mechanism is arranged at two sides of the bag body forming mechanism and corresponds to two side faces of the bag body, and the joint of the two side faces of the bag body can be sealed after the bag opening folded edges are spliced, so that the connection strength and the tightness of the bag body are ensured.

The manufacturing equipment provided by the application can realize the grafting and sealing of the pocket mouth folded edges in the forming process of the pocket body, the joint of the pocket mouth folded edges is smoother, and the grafting of the joint is firmer, thereby ensuring the aesthetic property and the structural stability of the pocket body, and the subsequent process of pocket mouth folding and the like without an additional mouth folding machine is not needed, thus the manufacturing process is simple, the formed pocket body is prevented from being pulled and damaged, the whole manufacturing equipment is more compact, the occupied space is smaller, and the land requirements of more manufacturers can be further met.

Further, when the pocket mouth folds are folded in advance before the pocket body is formed, at least one pocket mouth fold of the pocket mouth folds formed on two 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, so that the pocket mouth folds can be stably spliced without opening the folds at the joint in the forming process. The bag mouth edge folding and sealing is realized by utilizing the plugging mode, so that extra operation steps are avoided, and the production process and the equipment structure are further simplified.

Therefore, the manufacturing equipment can not only manufacture the three-dimensional bag with good aesthetic property and high bag body strength with higher efficiency through continuous feeding, efficient flanging and splicing and sealing actions and simplified process, but also improve the success rate of splicing and sealing at the flanging connection position of the bag mouth, thereby greatly improving the manufacturing yield of the three-dimensional bag.

Further, in the manufacturing equipment of the three-dimensional bag provided by the application, the bag mouth flanging device comprises a pair of flanging assemblies respectively arranged at two sides of the sheet in the length direction, each flanging assembly comprises a turnover mechanism, the turnover mechanism can be arranged on the frame in a turnover manner around the width direction of the sheet and is positioned at the outer side of the corresponding side edge of the bag mouth flanging station in the width direction of the frame, and the turnover mechanism can be turned around the width direction of the sheet to enable the sheet to be turned over at the corresponding side in the length direction of the sheet to form the bag mouth flanging.

When the equipment is started, the turnover mechanism starts to turn over around the width direction of the sheet material, and the corresponding side of the sheet material in the length direction can be turned over along with the turning over of the turnover mechanism, so that the pocket mouth folded edge is formed. The bag mouth folding is achieved in a turnover mode, so that the bag mouth folding is more consistent with the folding characteristic of the sheet materials, and particularly for the paper sheet materials, as the paper sheet materials are brittle, the bag mouth folding is achieved in a folding mode, and compared with other folding modes, the risk of tearing the paper sheet materials can be reduced.

Further, the at least one hemming assembly further comprises a supporting mechanism which is movably arranged on the frame along the length direction of the sheet material and is positioned at the inner side of the edge of the corresponding side of the pocket hemming station in the width direction of the frame, and the supporting mechanism can be moved to the pocket hemming position of the corresponding side of the sheet material in the length direction and supports the inner side surface of the at least one pocket hemming, so that the pocket hemming of the corresponding side is opened at a preset angle relative to the inner wall of the sheet material body. In the process of forming the pocket folds, the supporting mechanism moves to the pocket folds on the corresponding side in the length direction of the sheet material, and at this time, the supporting mechanism starts to act and supports the inner side surface of at least one pocket fold. Due to the support of the support mechanism, the pocket mouth folded edge at the corresponding side can be opened at a preset angle relative to the inner wall of the sheet material body, and the pocket mouth folded edge can be ensured to have better stability and splicing performance in an opened state.

Compared with the traditional three-dimensional bag manufacturing, the bag opening forming process can realize the bag opening forming only by performing the edge folding opening action at the connecting part in the forming process. In the equipment of the application, the bag mouth folds are opened at a preset angle in advance through the supporting mechanism, and in the forming process, the opened bag mouth folds can be naturally mutually spliced without performing additional folding opening actions at the joint.

Furthermore, the application utilizes the structural characteristics formed by pre-opening the bag mouth folded edges, so that the bag mouth folded edges can be tightly spliced together, and the sealing of the bag mouth is realized. Compared with the traditional method, the method omits the complicated operation step of folding and opening at the joint and possibly affecting the quality, thereby simplifying the whole production process and equipment structure. The equipment can realize the hem opening at the in-process of sack hem simultaneously and utilize supporting mechanism's action, need not to do extra opening operation to the sack hem follow-up, can realize the stable grafting and the closing of sack hem, improved production efficiency, reduced the complexity and the operation degree of difficulty of equipment.

Further, in the manufacturing equipment of the three-dimensional bag provided by the application, the supporting mechanism comprises the supporting plate extending along the width direction of the sheet material and the supporting member arranged on one side of the supporting plate away from the sheet material, an inclined surface extending obliquely from inside to outside along the length direction of the sheet material is formed at the end part of the supporting member away from the sheet material, when the bag mouth edge folding is folded, the outer side edge of the supporting plate is pressed on a preformed edge folding indentation line on the sheet material, and the inclined surface is supported on the inner side surface of the bag mouth edge folding. The supporting mechanism stably supports the supporting plate along the width direction of the sheet material, and particularly when the folding mechanism is used, the supporting plate can be extruded at the crease of the pocket mouth flanging on the sheet material, namely, the outer side edge of the supporting plate is pressed on a flanging impression line formed in advance on the sheet material, so that when the flanging is folded by the folding mechanism, the flanging can be stably folded along the crease line, and the position accuracy of folding the pocket mouth flanging is ensured.

Further, due to the inclined plane design of the supporting member, the pocket mouth folded edge can be unfolded along a preset inclined plane angle when being folded, so that the pocket mouth folded edge is unfolded at a certain angle. No additional opening action is needed, thereby simplifying the production process. The operation efficiency of the equipment is improved and the production cost is reduced because the extra production steps are omitted.

Secondly, the application also provides a manufacturing method of the three-dimensional bag, which is applied to the manufacturing equipment of the three-dimensional bag with the structure and comprises the following steps:

s1, conveying stacked sheets to a head card placing station one by a sheet feeding device;

s2, the head card placing device of the head card placing station places the head cards one by one in a head card placing area preset corresponding to the sheet material;

s3, fixing the two ends of each lifting handle on the edge of the lifting handle opening on the corresponding sheet conveyed to the lifting handle fixing station by the lifting handle fixing device;

S4, at least folding at least one pocket opening in two sides of the sheet material in the length direction by the pocket opening folding device, and unfolding and folding at a preset angle;

s5, the corresponding areas of the sheet materials are turned over by the bag body forming mechanism to form a bag body;

S6, dragging a bag mouth hem at the side surface connecting position in the bag body by the hem inserting mechanism to be inserted with another bag mouth hem after dislocation;

S7, the bag body sealing mechanism seals the side face connecting part of the bag body;

s8, the formed bag body is pressed into a folded state by the bag folding device, and the bottom card is placed into the bag body by the bottom card placing device.

When the manufacturing method is used for manufacturing the handbag, the stacked sheets (such as paper, plastic films or other materials suitable for manufacturing bags) are conveyed to a head card placing station on a production line one by one. This ensures that the subsequent steps can process each sheet continuously and efficiently. At the head card placement station, the head cards (which are typically used to support the mouth of the bag and increase its structural stability) are placed one by one at preset locations on each sheet, and the location and number of the head cards may be determined according to the design requirements of the bag. Next, a handle (a handle for conveniently carrying the bag) is fixed to the sheet material of the handle fixing station, and both ends of the handle are generally firmly attached to the edge of a handle opening preset in the sheet material to ensure its stability and durability. At the pocket mouth hemming station, the pocket mouth hemming device folds at least one pocket mouth in the length direction of the sheet material, specifically at a preset angle, so as to prepare for subsequent plugging and sealing steps, and the pocket body forming mechanism folds corresponding areas of the sheet material to preliminarily form the shape of the pocket body, specifically can fold the bottom, side or other parts of the sheet material to create the inner space and structure of the pocket. And then, the edge folding and inserting mechanism carries out dislocation and inserting on one pocket edge and the other pocket edge at the joint of the side surfaces in the pocket body. The plugging mode can enhance the structural strength of the bag mouth, and provides a sealing mode without additional sealing or bonding, and after the plugging is finished, the bag body sealing mechanism seals the side surface connection part of the bag body, and the bag body sealing mechanism can be realized by stitching, bonding or other proper technological methods so as to ensure the integrity and the sealing performance of the bag. Finally, the bag folding device presses the formed bag body into a folded state so as to be convenient for storage and transportation, and the bottom card placing device places a bottom card (used for supporting the bag bottom and increasing the structural stability thereof) into the bag body. The finished bag is finally packaged, distributed or sold.

In the above steps, during the formation of the bag body (steps S5 to S7), the bag mouth flange (processed in step S4) is folded and opened at a predetermined angle, and then the staggered insertion is achieved by the flange insertion mechanism (step S6). The step is followed by the molding of the bag body, so that the key connection action of the bag mouth is ensured in the molding process, and the subsequent processes of bag mouth folding and the like are not needed. After the plugging is finished, the bag body sealing mechanism immediately seals the side junction (step S7), so that the instant treatment not only ensures the firmness of the bag mouth, but also ensures that the junction is smoother, and the attractiveness and the structural stability of the bag body are improved. Because the folding processing (step S4) is carried out on the bag mouth folding edge before the bag body is formed, and the folding is carried out at a preset angle, the folding opening action of the folding edge at the connecting part is not needed in the forming process, and the production process is simplified. The manufacturing equipment is more compact in structure, and because extra mechanical equipment or space is not needed to be additionally arranged for extra pocket processing steps, the compactness of the equipment not only reduces the occupied area, but also reduces the production cost and the maintenance difficulty.

Further, as the bag mouth edge folding is spliced and sealed in the forming process, the formed bag body has stronger structural stability at the joint and can resist the pulling of stronger external force, so that the service life of the bag body is prolonged, the formed bag body does not need additional pulling action, the efficiency is high, and the problem that the formed bag body is damaged by pulling is avoided.

In summary, when the manufacturing method provided by the application is used for manufacturing the three-dimensional bag, the three-dimensional bag is spliced and sealed through the instant bag opening flanging, the process is simplified, the equipment compactness is improved, the manufacturing efficiency and the yield are improved, the formed bag body is prevented from being pulled and damaged, and other combined actions are realized, so that the aesthetic property and the structural stability of the bag body are ensured, the manufacturing efficiency and the yield of the three-dimensional bag are greatly improved, and the use area and the production requirement of more manufacturers can be met.

Drawings

Fig. 1 is a schematic front view of a stereoscopic bag manufacturing apparatus according to an embodiment of the present application;

Fig. 2 is a schematic perspective view of a manufacturing apparatus for a stereoscopic bag according to an embodiment of the present application;

Fig. 3 is a schematic perspective view of a three-dimensional bag manufacturing apparatus according to an embodiment of the present application, with a sheet material feeding device removed;

Fig. 4 is a schematic perspective view of a sheet feeding device in a manufacturing apparatus of a stereoscopic bag according to an embodiment of the present application;

Fig. 5 is a schematic perspective view of a head card placement device in a manufacturing apparatus of a stereoscopic bag according to an embodiment of the present application;

Fig. 6 is a schematic view of a partially enlarged structure of another view angle of a head card placement device in a manufacturing apparatus of a stereoscopic bag according to an embodiment of the present application;

fig. 7 is a schematic perspective view of a handle fixing device in a manufacturing apparatus of a stereoscopic bag according to an embodiment of the present application;

Fig. 8 is a schematic view of a partially enlarged structure of a handle fixing device in a manufacturing apparatus of a three-dimensional bag according to an embodiment of the present application;

Fig. 9 is a schematic perspective view of a bag mouth hemming device in a manufacturing apparatus for a stereoscopic bag according to an embodiment of the present application;

fig. 10 is a schematic view of a partially enlarged structure of a bag mouth hemming device in a manufacturing apparatus of a three-dimensional bag according to an embodiment of the present application;

FIG. 11 is a schematic perspective view of a structure arranged in a forming station in a manufacturing apparatus for three-dimensional bags according to an embodiment of the present application;

Fig. 12 is a schematic view of a three-dimensional structure of a forming mold and a dragging part in a manufacturing apparatus of a three-dimensional bag according to an embodiment of the present application;

Fig. 13 is a schematic view of a three-dimensional structure of a hemming plug-in mechanism in a three-dimensional bag manufacturing device according to an embodiment of the present application when the hemming plug-in mechanism includes a dragging belt;

Fig. 14 is a schematic view of a three-dimensional structure of a three-dimensional bag manufactured by a manufacturing apparatus of a three-dimensional bag according to an embodiment of the present application;

FIG. 15 is an enlarged view of a portion of FIG. 14;

Fig. 16 is a flowchart of a method for manufacturing a stereoscopic pouch according to an embodiment of the present application.

Reference numerals illustrate:

1. The machine frame comprises a frame body, 101, a production direction, 102, a width direction, 1001, a front face, 1002, a side face, 1003, a bag opening flanging, 1004, a handle, 1005 and a handle opening;

10. a sheet material supply device;

11. A sheet height adjusting mechanism 12, a sheet conveying mechanism;

20. a head card placement device;

21. a head clamp grabbing mechanism;

22. Head card feed mechanism 221, main feed piece 222, secondary feed piece 223, feed guide piece;

23. a mounting base;

30. A handle fixing device;

31. a handle supply mechanism;

32. a handle grabbing mechanism;

33. A handle fixing mechanism;

40. A bag mouth flanging device 401, a flanging assembly;

41. 411, stay plate, 412, support member;

42. the folding mechanism, 421, the folding plate, 422, the turnover driving mechanism;

43. A limiting mechanism;

50. a forming station;

51. a bag body forming mechanism, 511, a forming die, 512, and a forming area;

52. 521, dragging parts;

53. A bag body sealing mechanism 531, a pushing part 532 and a sealing part;

60. And a sheet conveying mechanism.

Detailed Description

The application provides a manufacturing device and a manufacturing method of a three-dimensional bag, wherein the manufacturing device of the three-dimensional bag is used for manufacturing the three-dimensional bag, and the manufactured three-dimensional bag can be a paper three-dimensional bag with a handle, a plastic three-dimensional bag and the like, or can be a paper three-dimensional bag without a handle, a plastic three-dimensional bag and the like. The three-dimensional bag comprises a bottom surface and two side surfaces positioned at two sides of the bottom surface, wherein the two opposite sides of the two side surfaces are overlapped with each other. The manufacturing equipment can be used for manufacturing the three-dimensional bag with good aesthetic property and high bag body strength more efficiently through continuous feeding, efficient flanging, splicing and sealing actions and simplified process, and the success rate of splicing and sealing at the flanging connection position of the bag mouth can be improved, so that the manufacturing yield of the three-dimensional bag can be greatly improved.

In order to more clearly describe the solution of the present invention, the apparatus and method for producing a three-dimensional bag are illustrated below with reference to the accompanying drawings.

First, a manufacturing apparatus of such a three-dimensional bag will be described.

With respect to the fabrication apparatus of such a three-dimensional bag provided by the present application, referring to fig. 1 to 3, in one embodiment of the present application, the fabrication apparatus includes a frame 1 as a supporting structure of the whole apparatus, the frame 1 being used to mount and fix all other components. The frame 1 is provided with a feeding station, a pocket mouth flanging station and a forming station 50 in sequence along the production direction 101.

At the feeding station, the feeding station is provided with a sheet feeding device 10, and the sheet feeding device 10 is used for conveying sheets of the formed three-dimensional bag to the next station one by one, so that the continuity of sheet supply is ensured, and a foundation is laid for subsequent efficient production.

Referring to fig. 4, the sheet feeding apparatus 10 includes a sheet height adjusting mechanism 11 and a sheet conveying mechanism 12, the sheet height adjusting mechanism 11 is provided on the frame 1 on an upstream side of the feeding station, the sheet height adjusting mechanism 11 is provided with a sheet stacked thereon and is capable of adjusting a top height of the sheet in a vertical direction, the sheet conveying mechanism 12 is provided on a downstream side of the feeding station and includes a first conveying member and a second conveying member which are sequentially provided in a production direction, the first conveying member includes an extracting member which extracts one of the stacked sheets and is conveyed to an inlet end of the second conveying member in the production direction, the second conveying member includes a conveying member which is movable in the production direction, the sheet conveyed to an inlet end of the second conveying member is at least partially attached to the conveying member and is conveyed to an outlet end of the second conveying member via the conveying member, the frame 1 is further provided with a deviation correcting member on a downstream side of the second conveying member, the deviation correcting member includes a driving member and an adjusting member provided on the frame 1, the adjusting member is connected to the driving member and is movable in the width direction of the frame 1 in the driving member in the direction of the driving member 102 when the driving member is moved to the downstream side of the frame 1 in the direction.

In the sheet feeding device 10, the sheet height adjusting mechanism 11 may be a liftable platform or tray that is mounted on the frame 1 and is capable of height adjustment in the vertical direction by a lifting mechanism (e.g., an electric lifting column, a hydraulic cylinder, a pneumatic cylinder, or the like). When the top height of the sheet needs to be adjusted, the lifting mechanism drives the platform or tray to rise or fall, thereby changing the overall height of the sheet placed thereon. In this way, it is ensured that the sheet is fed to the extraction member at an appropriate height, facilitating smooth gripping by the extraction member. The extracting component can be a mechanical arm with a sucking disc or a robot arm with a clamping jaw, and is used for grabbing the uppermost one of the stacked sheets and moving the uppermost one to the inlet end of the second conveying component along the production direction, and the movement of the extracting component can be powered by a driving mechanism such as a motor, an air cylinder or a hydraulic cylinder. The conveying component can be a conveyor belt, a roller conveying line or a sliding plate with a sliding rail, and is used for bearing the sheet materials conveyed by the extracting component and moving the sheet materials to the outlet end along the production direction, and the movement of the conveying component can be powered by a power source such as a motor or a hydraulic motor. The driving part can be a motor or an air cylinder for providing power for pushing the adjusting part to move, and the adjusting part can be a push plate, a sliding block or a telescopic push rod for moving in the width direction 102 of the frame 1 according to the instruction of the driving part so as to push the sheet material to rectify the deviation.

Further, to ensure accuracy of correction, the correction assembly may further be provided with a sensor (e.g., a photoelectric sensor, a position sensor, etc.). The sensor can detect the position information of the sheet material and feed back the information to the control system, and the control system adjusts the output of the driving part according to the fed back information so as to control the moving track and speed of the adjusting part.

In the working process, firstly, a worker stacks the sheet material layers on the sheet material height adjusting mechanism 11, then, the sheet material is moved in the vertical direction through the sheet material height adjusting mechanism 11, and the sheet material height position of the sheet material layers stacked on the sheet material height adjusting mechanism 11 is changed, so that the uppermost sheet material in the stacked sheet material layers is positioned in the extraction range of the extraction part. The stacked sheets are then lifted by the pick-up member and conveyed one by one onto the conveying member of the second conveying assembly, and the conveying member then conveys the sheets continuously in the production direction, thereby ensuring that the sheets can be stably conveyed to the downstream end of the second conveying member. When the sheet material is conveyed to the downstream end of the second conveying assembly, if the sheet material is misplaced with the feed inlet of the next station, the driving component can drive the adjusting component to push the sheet material to translate along the width direction 102 of the frame 1 so as to be aligned with the feed inlet of the next station, thereby ensuring that the sheet material can accurately enter the next station. Therefore, the sheet material can accurately reach the next station, such as a rope threading station, a flanging station and the like, so that the sheet material can be accurately processed in the next station, the size is free from deviation, the accuracy of the size of the produced paper bag is ensured, and the defective rate of the produced paper bag is reduced.

Further, when the sheet feeding device 10 of the paper bag forming machine is used for conveying sheets for the paper bag machine, the sheets do not need to be manually placed one by one for conveying, so that the labor cost is reduced.

It should be understood that, when the sheet material is conveyed by the sheet material feeding apparatus 10 of such a paper bag forming machine for a paper bag machine, the conveying speed of the extracting member for the sheet material should be lower than that of the conveying member, so that the problem that the sheet materials interfere with each other during the conveying process, such as the problem that two adjacent sheet materials overlap each other during the conveying process, is avoided.

In the pocket hemming station, see fig. 1, 3, 9, 10, 14 and 15, a pocket hemming device 40 is arranged in the pocket hemming station, the pocket hemming device 40 folds the sheet material conveyed to the pocket hemming station inwards at two sides of the sheet material in the length direction to form pocket hemms 1003, at least one pocket hemming 1003 formed at two sides of the sheet material in the length direction (see the width direction 102 of the frame) is unfolded at a preset angle relative to the inner wall of the sheet material body, and the pocket hemming 1003 has a certain opening degree when the sheet material is folded in advance, and the pocket hemming 1003 is unfolded at the preset angle relative to the inner wall of the sheet material when the subsequent pocket body is formed, so that the successful guarantee of the pocket hemming 1003 in the subsequent pocket body forming is provided.

It should be understood that the preset angle of the mouth flange 1003 refers to a specific angle formed when the mouth flange 1003 is folded with respect to the inner wall of the bag body or the sheet material during the mouth flange 1003, and the specific value of the preset angle is not limited, and may be any angle between 10 ° and 80 °, for example. One of the pocket folds 1003 or two pocket folds 1003 corresponding to the side 1002 in the pocket folds 1003 are folded at a preset angle, the pocket folds 1003 on one side of the sheet material can be folded completely, the other pocket folds 1003 on two sides of the sheet material can be folded at a preset angle, the pocket folds 1003 formed in the two ways can be stably spliced during subsequent forming, so that the success rate of splicing the pocket folds 1003 is ensured, and further, the manufacturing equipment can manufacture qualified three-dimensional bags more efficiently.

The structure of the bag mouth hemming device 40 is not limited, and for example, a folding mechanism may be provided, the bag mouth hemming may be folded by the folding mechanism, or a pushing mechanism may be provided, and the bag mouth hemming may be pushed by the pushing mechanism to realize hemming.

The following describes the structure of the bag mouth hemming device 40 taking the bag mouth hemming device 40 including the folding mechanism 42 as an example:

Referring to fig. 9, 10 and 14, the pocket hemming device 40 includes a pair of hemming assemblies 401 respectively disposed on two sides of the sheet in the length direction, each hemming assembly 401 includes a folding mechanism 42, the folding mechanism 42 is disposed on the frame 1 in a manner capable of being turned around the width direction (see the production direction 101) of the sheet, and is located outside the edge of the corresponding side of the pocket hemming station in the width direction 102 of the frame 1, and the folding mechanism 42 is capable of being turned around the width direction of the sheet so that the sheet is folded around the corresponding side of the sheet in the length direction to form a pocket hem 1003.

It is to 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.

When the apparatus is activated, the tucking mechanism 42 begins to turn around the width direction of the sheet, and the respective sides of the sheet in the length direction are tucked with the turning of the tucking mechanism 42, thereby forming the mouth folds 1003. The folding of the pocket flange 1003 in a turning manner is more consistent with the folding characteristics of the sheet, and particularly for the paper sheet, the folding of the pocket flange 1003 in a folding manner can reduce the risk of tearing the paper sheet compared with other folding manners because the paper sheet is brittle.

Specifically, the folding mechanism 42 includes a folding plate 421 and a turning driving mechanism 422, the folding plate 421 is disposed on the frame 1 in a manner capable of turning around the width direction of the sheet, below the corresponding side end portion of the sheet located at the pocket mouth folding station in the width direction 102 of the frame 1, and the folding plate 421 is connected to the power output end of the turning driving mechanism 422 in a transmission manner, and the turning driving mechanism 422 drives the folding plate 421 to turn around the width direction of the sheet.

Further, the at least one hemming assembly 401 further includes a supporting mechanism 41, the supporting mechanism 41 is movably disposed on the frame 1 along the length direction of the sheet material and is located inside the edge of the corresponding side of the pocket hemming station in the width direction 102 of the frame 1, the supporting mechanism 41 is movable to the pocket hem 1003 of the corresponding side of the sheet material along the length direction and supports the inner side 1002 of the at least one pocket hem 1003, so that the pocket hem 1003 of the corresponding side is opened at a preset angle relative to the inner wall of the sheet material body. During the formation of the mouth folds 1003, the support means 41 is moved to the mouth folds 1003 on the respective side in the sheet length direction, at which time the support means 41 comes into play, which supports the inner side 1002 of at least one mouth fold 1003. Due to the support of the support mechanism 41, the pocket flange 1003 on the corresponding side can be opened at a preset angle relative to the inner wall of the sheet material body, so that the pocket flange 1003 can be ensured to have better stability and splicing performance in the opened state.

Compared with the traditional three-dimensional bag manufacturing, the bag opening forming process can realize the bag opening forming only by performing the edge folding opening action at the connecting part in the forming process. In the apparatus of the present application, the bag mouth flaps 1003 are opened at a predetermined angle in advance by the supporting mechanism 41, and these opened bag mouth flaps 1003 can be naturally inserted into each other during the molding process without performing an additional joint flap opening operation.

Further, the application utilizes the structural characteristics formed by pre-opening the pocket mouth folded edges 1003, so that the pocket mouth folded edges 1003 can be tightly spliced together, and the closing of the pocket mouth is realized. Compared with the traditional method, the method omits the complicated operation step of folding and opening at the joint and possibly affecting the quality, thereby simplifying the whole production process and equipment structure. The equipment can realize the hem opening by simultaneously utilizing the action of the supporting mechanism 41 in the process of the pocket mouth hem 1003, and the stable splicing and sealing of the pocket mouth hem 1003 can be realized without additional opening operation on the pocket mouth hem 1003, so that the production efficiency is improved, and the complexity and the operation difficulty of the equipment are reduced.

Further, in the apparatus for manufacturing a three-dimensional bag according to the present application, referring to fig. 10, the supporting mechanism 41 includes a supporting plate 411 extending in the width direction of the sheet material, and a supporting member 412 disposed on a side of the supporting plate 411 away from the sheet material, wherein an inclined surface extending obliquely from inside to outside in the length direction of the sheet material is formed at an end of the supporting member 412 away from the sheet material, and when the bag mouth flange 1003 is folded, an outer edge of the supporting plate 411 is pressed against a flange indentation line formed in advance on the sheet material, and the inclined surface is supported on an inner side surface 1002 of the bag mouth flange 1003. The supporting mechanism 41 stably supports the supporting plate 411 along the width direction 102 of the sheet material, and particularly when the folding mechanism is used, the supporting plate 411 can be extruded at a crease of a pocket mouth crease 1003 on the sheet material, namely, the outer edge of the supporting plate 411 is pressed on a crease mark line formed in advance on the sheet material, so that when the folding mechanism 42 folds the crease, the crease can be stably folded along the crease mark line, and the position accuracy of folding the pocket mouth crease 1003 is ensured. The support member 412 may be specifically formed of a plurality of support ribs formed on the support plate 411 and spaced apart in the longitudinal direction of the support plate 411, and upper side walls of the plurality of support ribs may be inclined surfaces. The number of the support ribs is not limited, and may be, for example, 4, 5, or the like.

Further, the bevel design of the supporting member 412 enables the bag mouth flange 1003 to be opened along a preset bevel angle when the bag mouth flange 1003 is folded, so that a certain opening angle of the bag mouth flange 1003 is realized. No additional opening action is needed, thereby simplifying the production process. The operation efficiency of the equipment is improved and the production cost is reduced because the extra production steps are omitted.

Further, the bag mouth flanging device 40 further comprises a limiting mechanism 43 which is movably arranged on the frame 1 along the vertical direction, a pressing plate is arranged at the lower end of the limiting mechanism 43, and when the sheet material is conveyed to the bag mouth flanging station, the limiting mechanism 43 is linked with the pressing plate to move downwards and press the sheet material to be relatively fixed with the table top of the bag mouth flanging station.

In the above-mentioned pocket mouth hemming device 40, the pocket mouth hemming device 40 includes a pair of hemming assemblies 401, a supporting mechanism 41, and a limiting mechanism 43, and each mechanism in the pocket mouth hemming device 40 is further electrically connected with a control system of the whole machine, where the control system may be a control cabinet or the like.

A pair of hemming assemblies 401 are respectively disposed at both sides in the length direction of the sheet, and each hemming assembly 401 includes a hemming mechanism 42 and a hemming driving mechanism 422. The folding mechanism 42 mainly comprises a folding plate 421, wherein the folding plate 421 can be arranged on the frame 1 in a turnover manner around the width direction of the sheet material and is positioned below the end part of one side of the sheet material of the pocket mouth folding station. The turning driving mechanism 422 is in transmission connection with the edge folding plate 421 and provides power to drive the edge folding plate 421 to turn around the width direction of the sheet material. The supporting mechanism 41 is movably arranged on the frame 1 along the length direction of the sheet material and is positioned on the inner side of the corresponding side edge of the bag mouth flanging station. The support mechanism 41 includes a stay 411 and a support member 412. The stay 411 extends in the width direction of the sheet for supporting the sheet during folding. The support member 412 is disposed on a side of the stay 411 away from the sheet material, and an end of the stay away from the sheet material is formed with a slope for supporting an inner side 1002 of the pocket flange 1003. The limiting mechanism 43 is movably disposed on the frame 1 along the vertical direction, and the limiting mechanism 43 is provided with a pressing plate. When the sheet is conveyed to the pocket mouth flanging station, the limiting mechanism 43 links the pressing plate to move downwards and press the sheet, so that the sheet and the table top of the pocket mouth flanging station are relatively fixed.

Further, the folding mechanism 42 may further include a driving arm and a link mechanism in addition to the folding plate 421. The edge folding plate 421 can be designed into a flexible plate structure to adapt to sheets with different thickness and materials. And the portion of the hemming plate 421 directly contacting the sheet material may be provided with a flexible protection pad to prevent damage to the sheet material. The driving arm is connected to the hemming plate 421 for transmitting power of the inversion driving mechanism 422. The driving arm may be designed as a rod-shaped structure capable of rotating around a fixed shaft, and is connected with the edge folding plate 421 through a link mechanism, wherein the link mechanism is a transmission mechanism for connecting the driving arm and the edge folding plate 421 and is used for converting the rotation motion of the driving arm into the overturning motion of the edge folding plate 421, and the link mechanism may be designed as a four-link mechanism or other structures so as to ensure that the edge folding plate 421 can be overturned stably and accurately.

When the bag mouth flanging device 40 is started, the control system firstly controls the limiting mechanism 43 to act, the limiting mechanism 43 can be a driving motor electrically connected with the control system, and the linkage pressing plate moves downwards and presses the sheet material to be relatively fixed with the table top of the bag mouth flanging station, so that the sheet material is prevented from moving to influence the subsequent flanging effect. Then, the turning driving mechanism 422 starts to work, and the turning driving mechanism 422 may also be a driving motor electrically connected with the control system, so as to drive the edge folding plate 421 to turn around the width direction of the sheet material. The flap 421 contacts the sheet during the inversion process and applies pressure to cause one side of the sheet to be folded over to form the pocket flap 1003. At the same time, the supporting mechanism 41 moves to the pocket flange 1003 on the corresponding side in the sheet length direction, the outer edge of the supporting plate 411 is pressed against the pre-formed flange indentation line on the sheet, and the inclined surface of the supporting member 412 is supported on the inner side surface 1002 of the pocket flange 1003. The pocket flange 1003 is opened at a predetermined angle with respect to the inner wall of the sheet material body due to the supporting action of the supporting mechanism 41 and the pressing action of the flange plate 421. After the folding is completed, the mouth folds 1003 can be stably inserted together due to the pre-opening. The bag opening can be sealed without performing additional edge folding and opening actions at the joint. After the pocket flap 1003 is completed, the components are reset and ready for the next cycle.

It should be understood that when the pocket edge folding device 40 is not started, the edge folding plate 421 is not higher than the table top in the height direction, the pocket edge folding 1003 of the sheet is located above the edge folding plate 421 when the sheet is conveyed to the edge folding station, in the edge folding process, on one hand, the pressing plate is used for fixing the sheet, on the other hand, the supporting plate 411 can be pressed on the edge folding indentation line formed in advance on the sheet, due to the guiding effect of the edge of the supporting plate 411 and the limiting effect of the pressing plate, the pocket edge folding 1003 can be accurately folded along the crease line, which provides a foundation for the attractiveness of the subsequent pocket body, and since the supporting plate 411 can also support the inner wall of the sheet body, the stable operation of the subsequent edge folding is facilitated. The edge folding plate 421 and the supporting plate 411 are arranged in a staggered manner in the width direction 102 of the frame 1, so that the edge folding plate 421 and the supporting plate 411 can be prevented from interfering with each other in the operation process.

Referring to fig. 1, 3, 11 and 14, a forming station 50 of a manufacturing device is provided with a bag forming mechanism 51, a folding edge inserting mechanism 52 and a bag body sealing mechanism 53, the bag forming mechanism 51, the folding edge inserting mechanism 52 and the bag body sealing mechanism 53 are utilized to form and seal a folded sheet into a bag body structure, especially after the bag body forming mechanism 51 forms the bag body, the bag body forming mechanism 51 can insert bag opening folding edges 1003 at two side faces 1002 of the bag body, then the bag body sealing mechanism 53 seals the bag body, the whole operation can be completed at the forming station 50, the efficiency is higher, the connection of the bag opening folding edges 1003 at the two side faces 1002 of the bag body is more smooth, a more attractive three-dimensional bag is produced, and the bag opening of the bag body is sealed after the connection of the bag opening folding edges 1003 is inserted, so that the strength of the bag opening is higher.

Specifically, the bag forming mechanism 51 is disposed on the frame 1, and is used for folding 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 inserting mechanism 52, the folding inserting mechanism 52 drags two bag mouth folds 1003 at the overlapping position of two sides 1002 of the bag body to be inserted into each other after being dislocated (as shown in fig. 15), and it is understood that one side of the bag forming mechanism 51 may be provided with the folding inserting mechanism 52, or both sides of the bag forming mechanism 51 may be provided with the folding inserting mechanism 52.

When the hemming and plugging mechanism 52 is disposed on one side of the bag body forming mechanism 51, the hemming and plugging mechanism 1003 of the bag opening of the bag body may be that one front surface 1001 of the bag body is fixed relative to the bag body forming mechanism 51 and the other front surface 1001 is dragged by the hemming and plugging mechanism 52, wherein the front surface 1001 of the bag body refers to a surface adjacent to the side surface 1002 in the bag body, and the two front surfaces 1001 are opposite, when one front surface 1001 is dragged, the side surface 1002 adjacent to the bag body is driven to move, for example, when the bag body is placed in a vertical direction (i.e. the front surface 1001 and the side surface 1002 of the bag body extend in the vertical direction), the hemming and plugging mechanism 52 is movably disposed in the vertical direction, and directly drags one front surface 1001 to move, and both the front surface 1001 and the side surface 1002 are integrally formed by sheet material. In contrast, when one front surface 1001 is dragged by the hemming and inserting mechanism 52 to move in the vertical direction, the adjacent side surface 1002 is simultaneously linked to move in the vertical direction, and after one stroke of up-and-down reciprocating movement in the vertical direction, one pocket hemming 1003 is inserted into the other pocket hemming 1003, and based on the above description, since the manufacturing device of the present application opens the pocket hemming 1003 at a preset angle relative to the inner wall of the sheet material body in the pocket hemming station, the insertion is easier when one pocket hemming 1003 is inserted into the other pocket hemming 1003.

When the two sides of the bag body forming mechanism 51 are provided with the folding and inserting mechanisms 52, the bag mouth folding edge 1003 of the bag body can be dragged by the folding and inserting mechanisms 52 in the inserting process, for example, the two front faces 1001 can be reset after being dragged by the folding and inserting mechanisms 52 in opposite directions along the vertical direction, and the adjacent side faces 1002 are linked to move along the vertical direction at the same time in the same track, and after the side faces 1002 reciprocate up and down along the vertical direction for one stroke, one bag mouth folding edge 1003 is inserted into the other bag mouth folding edge 1003.

The structure of the bag forming mechanism 51 is not limited, and the bag forming mechanism 51 will be described in detail below:

In one embodiment, referring to fig. 10 and 11, the bag body forming mechanism 51 comprises a forming die 511 movably arranged on the frame 1 along the vertical direction, a forming area 512 is formed on the table surface of the forming station 50, the forming die 511 moves along the vertical direction to enable the sheet material positioned at the forming station 50 to wrap the outer side of the forming die 511 to form a bag body, the edge folding inserting mechanism 52 is movably arranged on at least one side of the forming die 511 along the vertical direction, and the edge folding inserting mechanism 52 drags the front 1001 of the corresponding side of the bag body to reciprocate and stagger in the vertical direction relative to the front 1001 of the other side, so that the bag mouth edges 1003 at the upper ends of the two side faces 1002 of the bag body are mutually inserted after being staggered in the vertical direction.

Specifically, the hemming-inserting mechanism 52 may be provided on one side of the molding die 511, or the hemming-inserting mechanism 52 may be provided on both sides. In practice, the forming die 511 is movably disposed on the frame 1 along a vertical direction, and the forming die 511 has an outer contour (a cavity or a groove may be designed in the die) matching a desired shape of the bag body, so as to wrap the sheet material on the outer side thereof during the forming process. A driving means (such as a motor, a cylinder, a hydraulic cylinder, or the like) is provided for providing a moving power of the forming die 511 in the vertical direction. The forming station 50 is counter-formed with a forming area 512 for receiving and supporting a forming die 511 and the bag being formed. The mesa surface may be a structure with a high adhesion, for example by a polished smooth plane, the adhesion between mesa surface and the sheet being improved by the principle of negative pressure.

In use, the sheet is transported by the transport means to the table of the forming station 50 and is positioned in the forming zone 512, and the forming die 511 begins to move downwardly in a vertical direction under the influence of the drive means. During the movement, the outer contour of the mold gradually contacts the sheet material, and as the molding mold 511 continues to descend, the sheet material gradually deforms under the compression of the mold and conforms to the outer contour of the mold, forming the basic shape of the bag. At this time, both sides 1002 of the pouch body and the mouth flange 1003 of the upper end have been preliminarily formed. When the forming die 511 is lowered to a predetermined position, for example, after the bag body is formed, the hemming device 52 starts to operate. It first grips one side face 1001 of the pouch (i.e., the face adjacent to the side face 1002) and pulls the side face 1001 in a vertical direction to reciprocate in a staggered manner relative to the other side face 1001. In this process, the bag mouth folds 1003 at the upper ends of the two side faces 1002 of the bag body are dislocated in the vertical direction and are inserted into each other. After the plugging is completed, the forming mold 511 is moved upward in the vertical direction by the driving of the driving device, and returns to the initial position. At this point, the sealed pouch has been formed.

When the hemming grafting mechanism 52 is arranged on one side of the forming die 511, the hemming grafting mechanism 52 is arranged on one side of the forming die 511 and at a position corresponding to the front 1001 of the corresponding side of the bag body, a bag body limiting component is arranged on the position corresponding to the front 1001 of the other side of the forming die 511 and used for limiting the front 1001 of the other side of the bag body to move in the vertical direction relative to the side wall of the forming die 511, and the hemming grafting mechanism 52 comprises a dragging component 521 which is movably arranged in the vertical direction and moves back and forth in the vertical direction, and the front 1001 of the corresponding side of the bag body is dragged to move back and forth in the vertical direction relative to the front 1001 of the other side.

Specifically, the bag body limiting component can be designed into a bump, a baffle, a sucker, a clamping device or the like, and is fixed on the forming mold 511 at a position corresponding to the front 1001 on the other side of the bag body. During the lowering of the forming mold 511, the bag body limiting member contacts the other side front surface 1001 of the bag body and generates a friction force or a pressing force, thereby limiting the movement of the bag body in the vertical direction and preventing deformation or dislocation during the forming process. Dragging member 521 may be a cylinder pushrod, hydraulic piston rod, electric pushrod, robotic arm, etc. In use, the dragging member 521 is extended to clamp or adsorb the front side 1001 of the bag body when the side 1002 of the bag body is required to be dragged, and reciprocally moved in the vertical direction. Then, the dragging part 521 moves in the vertical direction, so that the front surfaces 1001 of the two sides of the bag body are relatively displaced, and the bag mouth folds 1003 are staggered in the vertical direction and are mutually inserted. After the mating is completed, the dragging element 521 is retracted and returned to the initial position in preparation for the next mating cycle.

When the edge folding inserting mechanisms 52 are arranged on two sides of the forming die 511, the edge folding inserting mechanisms 52 are arranged on two sides of the forming die 511 corresponding to the bag body, the two edge folding inserting mechanisms 52 comprise dragging parts 521 which are movably arranged along the vertical direction, the dragging parts 521 of one edge folding inserting mechanism 52 drag the front 1001 of the corresponding side of the bag body to move upwards and reset, and the dragging parts 521 of the other edge folding inserting mechanism 52 drag the front 1001 of the other side of the bag body to move downwards and reset, so that the bag mouth edge folding 1003 at the upper ends of the two side faces 1002 of the bag body are mutually inserted after being staggered in the vertical direction.

When the bag mouth folding 1003 is spliced in this way, the dragging part 521 of one folding splicing mechanism 52 is controlled to move upwards, and one side front 1001 of the bag body is clamped or pressed to move upwards, and simultaneously, the dragging part 521 of the other folding splicing mechanism 52 is controlled to move downwards, and the other side front 1001 of the bag body is clamped or pressed to move downwards. During the movement of the dragging part 521, the two sides of the front 1001 of the bag body are displaced relatively in the vertical direction, resulting in the misalignment of the mouth flange 1003 in the vertical direction. When the drag member 521 reaches the predetermined position, the driving device controls the reset thereof to return to the initial position. At this point, the misaligned pocket folds 1003 have been plugged into one another.

The specific structure of the hemming-inserting mechanism 52 is not limited.

In one possible embodiment, referring to fig. 12, the dragging component 521 of the hemming device 52 may be a dragging plate disposed on a side of the forming mold 511 corresponding to at least one front surface 1001 of the bag body, the dragging plate is movably connected to a side wall of the forming mold 511 along a vertical direction, and when the sheet material is wrapped outside the forming mold 511, an inner wall of the bag body on the corresponding side of the formed bag body is attached to an outer wall of the dragging plate, and the dragging plate moves along the vertical direction to drag the front surface 1001 on the corresponding side of the bag body to reciprocate in the vertical direction relative to the front surface 1001 on the other side.

Specifically, the shape and size of the dragging plate need to be matched with the front 1001 of one side of the bag body, the outer wall of the dragging plate can be precisely machined, the inner wall of the bag body is tightly attached, and friction or sliding in the dragging process is avoided. When the dragging plate needs to be connected to the side wall of the forming mold 511, the dragging plate can be connected in a sliding manner, a guide rail manner or other reliable connection manners. The driving of the dragging plate can be realized by selecting an air cylinder, a hydraulic cylinder, an electric push rod and the like as driving devices, and the specific selection needs to be comprehensively considered according to factors such as production requirements, cost budget, equipment space and the like.

It should be understood that the dragging plate may be formed as a single body with the sidewall of the forming mold 511, or may be a plate additionally movably provided to the sidewall of the forming mold 511.

When the drag plate is formed as an integral structure with the sidewall of the molding die 511, the sidewall of the molding die 511 is movably connected with the die body in the vertical direction. For example, the mold body is provided with a slide rail, and the side wall of the molding mold 511 is slidably connected to the mold body through the slide rail. When the bag body is used, when the wrapping mould is folded on each surface of the bag body, the outer wall of the dragging plate is tightly attached to the inner wall of the front surface 1001 of the bag body, and the dragging plate is movable, so that the dragging plate can drag the front surface 1001 of one side of the bag body in the vertical direction.

In another embodiment, referring to fig. 13, the dragging component 521 of the hemming device 52 may be a dragging belt disposed on a side of the forming mold 511 corresponding to the at least one front surface 1001 of the bag body, and when the sheet material is wrapped outside 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, so as to drag the front surface 1001 on the corresponding side of the bag body to reciprocate in a vertical direction relative to the front surface 1001 on the other side.

Specifically, a dragging belt may be disposed on one side of the forming mold 511, or may be disposed on both sides of the forming mold 511. When one side of the forming die 511 is provided with a dragging belt, the other side wall of the forming die 511 may be provided with a sucking disc, after the bag body is wrapped outside the forming die 511, the sucking disc can suck one front side 1001 of the bag body and fix the bag body relative to the forming die 511, a driving motor or a driving motor of the dragging belt drives the dragging belt to abut against the other front side 1001 of the bag body and drive the dragging belt to rotate, at the moment, friction force between the dragging belt and the other front side 1001 can be separated from the other front side 1001 to move in the vertical direction, wherein when the adjacent side 1002 of the one front side 1001 is at the outer side, the other front side 1001 is reset after being dragged by the dragging belt to move downwards, so that the bag mouth folded 1003 of the adjacent side 1002 of the other front side 1001 is spliced in the bag mouth folded 1003 of the adjacent side 1002 of the one front side 1001, and when the adjacent side 1002 of the front side 1001 is at the inner side 1002, the other front side 1001 is reset after being moved upwards by the driving belt, so that the bag mouth folded 1003 of the adjacent side 1002 of the other front side 1001 is spliced in the bag mouth folded 1003 of the adjacent side 1002.

It should be understood that two driving motors or driving cylinders for driving the dragging belt may be provided (as shown in fig. 13), wherein one driving the dragging belt moves along the width direction 102 of the frame 1, that is, driving the dragging belt to abut against the bag body or be far away from the bag body, and the other driving the bag releasing belt to rotate to realize the up-and-down movement of the front surface 1001 of the dragging bag body,

Referring to fig. 13, when the dragging belts are disposed at two sides of the forming mold 511, the two dragging belts are disposed in the same manner, and when the bag is wrapped outside the forming mold 511, the two dragging belts are driven to abut against the two front surfaces 1001 of the bag.

In one embodiment, one dragging belt is only abutted against one front surface 1001 of the bag body and does not drag the bag body to move up and down, and the other dragging belt drags the other front surface 1001 of the bag body to move up and down so as to realize the plugging of the bag opening folded edge 1003.

In another embodiment, one dragging belt can drag one front surface 1001 of the bag body to move upwards and then reset, and the other dragging belt can drag the other front surface 1001 of the bag body to move downwards and then reset, so that the plugging of the bag opening folded edge 1003 is realized.

In the process of manufacturing the three-dimensional bag, after the above-mentioned structural actions, the bag body is basically molded at this time, and the bag body needs to be sealed and reinforced by the bag body sealing mechanism 53 at this time. Specifically, referring to fig. 11 and 13, the bag body sealing mechanisms 53 are disposed on two sides of the bag body forming mechanism 51, and the two bag body sealing mechanisms 53 correspond to two side faces 1002 of the bag body, and the bag body forming mechanism 51 seals a joint of the two side faces 1002 of the bag body after the bag mouth flange 1003 is inserted. In the process, the folding edge inserting mechanism 52 arranged on at least one side of the bag body can drag the two bag opening folding edges 1003 at the joint of the two side faces 1002 of the bag body to be inserted mutually after being staggered, so that the inserting of the bag opening folding edges 1003 can be accurately realized, and the inserting success rate is improved. Meanwhile, the bag body sealing mechanism 53 is arranged at two sides of the bag body forming mechanism 51 and corresponds to two side faces 1002 of the bag body, and after the bag opening folded edges 1003 are spliced, the joint of the two side faces 1002 of the bag body can be sealed, so that the connection strength and the tightness of the bag body are ensured.

It should be understood that, when the bag body is sealed, glue may be applied to the joint of the two sides 1002 of the bag body in advance, the bag body sealing mechanism 53 may be pressed to fix the two sides 1002 of the bag body by gluing, or the bag body sealing mechanism 53 may be a heat sealing mechanism, and when the bag body is made of thermoplastic materials such as plastic or non-woven fabrics, the bag body sealing mechanism 53 may directly seal the two sides 1002 of the bag body by thermoplastic.

In one possible embodiment, the bag body sealing mechanism 53 may be a thermal compression sealing mechanism, and in particular, the thermal compression sealing mechanism mainly comprises a heating plate and a pressure device. The heating plate is embedded with an electric heating wire or an electric heating tube for providing heat required by sealing. The pressure means are usually constituted by a cylinder or a spring or the like for exerting the necessary pressure on the bag during the closing process. After the neck flange 1003 is inserted, the control system activates the heater plate to heat it to a predetermined temperature and the pressure device (e.g., cylinder) begins to operate, pressing the heater plate against the junction between the two sides 1002 of the bag. After a predetermined sealing time, the control system closes the heating plate, and the pressure device releases the pressure, thereby sealing the bag. The three-dimensional bag produced in this way may be a three-dimensional bag made of thermoplastic material.

In another possible embodiment, the bag closure mechanism 53 may be configured as an ultrasonic closure mechanism, which may be comprised of an ultrasonic generator, transducer, horn, and horn. The ultrasonic generator generates high-frequency electric energy, the electric energy is converted into mechanical vibration energy through the energy converter, the mechanical vibration energy is amplified through the amplitude transformer and then transmitted to the welding head, the welding head is directly contacted with the joint of the two side faces 1002 of the bag body, and the sealing is realized by using friction heat generated by the high-frequency vibration. In use, after the pocket flange 1003 is inserted, the ultrasonic generator is started to generate high frequency electric energy and transmit the electric energy to the transducer. The transducer converts electrical energy into mechanical vibrational energy and transmits the mechanical vibrational energy to the horn after amplification by the horn. The welding head produces high frequency vibrations at the junction of the two sides 1002 of the bag body to locally melt and seal the bag body material together, and the three-dimensional bag produced in this way may also be a three-dimensional bag made of thermoplastic material.

For a three-dimensional bag made of thermoplastic material, the bag body sealing mechanism 53 may also be a pulse sealing device, a fuse sealing device, or the like.

In yet another possible embodiment, see fig. 13, the stereo bag may also be a stereo bag made of a non-thermoplastic material, such as a paper stereo bag, the sheets of which are pre-coated with glue at the attachment locations. For processing such a three-dimensional bag, the bag body sealing mechanism 53 includes a pushing member 531 provided on the frame 1, and a sealing member 532 drivingly connected to a power output end of the pushing member 531, the pushing member 531 pushing the sealing member 532 to move in a longitudinal direction (left-right direction in fig. 13) of the frame 1 so that the sealing member 532 abuts against and seals a joint of the side faces 1002 of the bag body.

Specifically, the pushing part 531 may include a motor, a decelerator, a transmission shaft, etc. for providing power for moving the closing part 532. The motor drives the transmission shaft to rotate through the speed reducer, and then drives the sealing component 532 to move along the length direction of the frame 1. The sealing member 532 directly contacts and presses the sides 1002 of the pouch at the junction to achieve sealing. The sealing member 532 may take the form of a press roll, a flat press block, etc., depending on the characteristics of the paper stereoscopic pouch and the glue application requirements. The surface of the press roll or the flat press block can be covered with an elastic material to increase the sealing property and uniformity when contacting with the bag body. In use, after the pocket mouth folded edge 1003 is spliced, the motor is started, and the transmission shaft is driven to rotate through the speed reducer. The drive shaft drives the sealing component 532 to move along the length direction of the frame 1 until the sealing component abuts against and presses the connection part of the side face 1002 of the bag body, and certain pressure and time are kept to ensure that the glue is fully cured and sealing is achieved.

It will be appreciated that the three-dimensional bag of thermoplastic material may also be sealed by means of gluing as described above, as the application does not require this exclusively.

Based on the scheme, the manufacturing equipment provided by the application can realize the plugging and sealing of the pocket opening folded edges 1003 in the process of forming the pocket body, the joint of the pocket opening folded edges 1003 is smoother, and the plugging of the joint is firmer, so that the attractiveness and the structural stability of the pocket body can be ensured, and the pocket opening folding process and other processes are not needed to be carried out by an additional folding machine, so that the manufacturing equipment is simple in the manufacturing process, the formed pocket body can be prevented from being pulled and damaged, the whole manufacturing equipment is more compact, the occupied space is smaller, and the land requirements of more manufacturers can be further met.

Further, since at least one pocket flap 1003 of the pocket flaps 1003 formed on both sides in the longitudinal direction of the sheet is opened at a predetermined angle with respect to the inner wall of the sheet body when the pocket flaps 1003 are folded in advance before the molding of the bag body, stable insertion of the pocket flaps 1003 can be achieved without performing a junction flap opening operation in the molding process. The sealing of the pocket mouth folded edge 1003 is realized by utilizing the plugging mode, so that extra operation steps are avoided, and the production process and the equipment structure are further simplified.

Therefore, the manufacturing equipment can not only manufacture the three-dimensional bag with good aesthetic property and high bag body strength with high efficiency through continuous feeding, efficient flanging and splicing and sealing actions and simplified process, but also improve the success rate of splicing and sealing at the joint of the bag mouth flanging 1003, thereby greatly improving the manufacturing yield of the three-dimensional bag.

Based on the manufacturing equipment of the three-dimensional bag provided by the application, a handbag with a handle can be manufactured, specifically, referring to fig. 1,2, 3, 7,8 and 14, a handle fixing station is further arranged between a feeding station and a bag mouth flanging station on the rack 1, a handle fixing device 30 is arranged on the handle fixing station, and the handle fixing device 30 comprises a handle feeding mechanism 31, a handle grabbing mechanism 32 and a handle fixing mechanism 33 which are arranged on the rack 1. The handle feeding mechanism 31 is arranged below the table top where the handle fixing station is located and is used for moving two ends of the handle 1004 to the position below the handle opening 1005 of the sheet material placed on the handle fixing station, the handle grabbing mechanism 32 is movably arranged above the table top where the handle fixing station is located along the vertical direction and is used for grabbing two ends of the handle 1004 to the position above the handle opening 1005 and releasing the handle opening 1005 from the position below the handle opening 1005, and the handle fixing mechanism 33 is arranged above the table top where the handle fixing station is located and is located on one side of the handle grabbing mechanism 32 and is used for fixing two ends of the handle 1004 at the edge position of the handle opening 1005.

It will be appreciated that the sheet stock is preformed with handle openings 1005 and that the handle feed mechanism 31 may be a linear slide or pneumatic/electric push rod mechanism or the like for moving the ends of the handle 1004 (which may be preformed metal rings, paper handles, plastic strips or cloth strips or the like) precisely directly beneath the handle openings 1005 of the sheet stock placed on the table top at the handle holding station. In use, the handles 1004 may be stored in a magazine of the feeding mechanism and pushed one by one to a designated location by a robotic arm or push rod. The handle grabbing mechanism 32 comprises a driving component, a grabbing component and a rolling sealing component arranged on one side of the grabbing component, wherein the driving component drives the grabbing end of the grabbing component to pass through the handle opening 1005 in a direction perpendicular to the handle fixing table top in a reciprocating manner and move the corresponding end of the handle from the lower side to the upper side of the handle fixing table top, the rolling sealing component comprises a rolling sealing wheel, the driving component drives the rolling sealing wheel to move along the direction of the plane of the handle fixing table top, and the corresponding end of the handle moving to the upper side of the handle fixing table top is rolled and sealed on a preset handle fixing part on the sheet material. The handle fixing part refers to a preset handle fixing area or a glue pre-coated area on the sheet material, specifically, a driving assembly (such as a motor, an air cylinder and the like) is fixedly arranged on the frame 1 and is responsible for providing power. The grabbing component and the rolling sealing component are respectively connected with the power output end of the driving component in a transmission way, so that grabbing and sealing actions are realized. The grabbing component and the rolling sealing component are respectively connected with the power output end of the driving component in a transmission way, and the grabbing component can adopt the forms of sucking discs, clamping jaws and the like and can be used for adaptively grabbing handles with different materials and sizes. The gripping end reciprocates in a direction perpendicular to the handle securing mesa to pull the handle 1004 from below to above. The rolling sealing assembly is used for rolling and sealing the end part of the lifting handle on a preset lifting handle fixing part on the sheet after the lifting handle is grabbed to the upper part, and the rolling sealing wheel can also adopt a heating design, for example, a heating wire, a heating plate and the like can be arranged in the rolling sealing wheel so as to enhance the sealing effect.

When the handle is integrally secured, the sheet is placed in a handle securing station with a handle opening 1005 pre-formed therein. The handle feeding mechanism 31 moves both ends of the handle 1004 to below the handle opening 1005. The driving component is started to drive the grabbing ends of the grabbing component to reciprocate along the direction perpendicular to the fixed table surface of the lifting handle, and the two ends of the lifting handle 1004 are grabbed from the lower side and lifted to the upper side. At the same time or later when the handle is grabbed to the upper part, the rolling and sealing assembly is started, the rolling and sealing wheel moves along the direction of the plane of the handle fixing table board, and the corresponding end part of the handle 1004 is in rolling and sealing on the preset handle fixing part on the sheet material. After the roll-sealing, the handle fixing mechanism 33 may further use a heating technique to fix the handle, such as drying. After the handle is fixed, the sheet material continues to enter the subsequent procedures of bag mouth flanging 1003 and the like, and finally the handbag with the handle is manufactured.

For the driving assembly and the driving relation between the driving assembly and each mechanism, in one implementation mode, the driving assembly comprises a first driving part and a second driving part, the grabbing assembly is in transmission connection with the power output end of the first driving part, the first driving part drives the grabbing assembly to reciprocate along the direction perpendicular to the handle fixing table top, the rolling sealing assembly is in transmission connection with the power output end of the second driving part, and the second driving part drives the rolling sealing wheel to move along the direction of the plane of the handle fixing table top. Specifically, the grabbing component can be connected with the power output end of the first driving component through a transmission mechanism (such as gear transmission, belt transmission, cam transmission and the like), the first driving component drives the grabbing component to reciprocate along the vertical direction to achieve grabbing and releasing actions, and the rolling sealing component can be connected with the power output end of the second driving component through a corresponding transmission mechanism. The second driving part drives the rolling sealing wheel to move along the direction of the plane of the handle fixing table surface, and rolling sealing is carried out on the handle.

It is to be understood that the application does not make unique requirements on what kind of transmission mechanism is adopted specifically, and the transmission mechanism is selected specifically according to actual production requirements.

Still further, the driving assembly further comprises a moving seat which is movably arranged on the frame 1 along the direction parallel to the plane of the handle fixing table top, the first driving component is fixedly arranged on the moving seat, the second driving component is fixedly connected on the frame 1 and is in transmission connection with the moving seat, the grabbing assembly and the rolling sealing assembly are both arranged on the moving seat, the first driving component drives the grabbing assembly to reciprocate relative to the moving seat along the direction perpendicular to the plane of the handle fixing table top, and the second driving component drives the moving seat to synchronously move along the direction of the plane of the handle fixing table top. Specifically, the movable seat is used as a carrier of the first driving component, the grabbing component and the rolling sealing component, so that the integral movement is realized. In the initial state, the movable seat, the grabbing component and the rolling sealing component are all located at preset positions. When the handle is required to be grabbed, the control system sends an instruction to the first driving part, the first driving part starts and drives the grabbing component to move downwards to a grabbing position along the vertical direction, the grabbing component performs grabbing action to fix the handle, after the handle is grabbed, the controller sends an instruction to the second driving part, the second driving part starts and drives the movable seat to move to a sealing position along the direction parallel to the plane where the fixed table top of the handle is located, in the process, the grabbing component and the rolling sealing component synchronously move along with the movable seat, and in the moving process, the rolling sealing component rolls and seals the handle. The handle ends can be more smoothly connected with the sheet material in a rolling manner, and can be more fully connected with the sheet material.

Further, the driving assembly further comprises a swinging component, one end of the swinging component is arranged on the movable seat, the rolling sealing wheel is rotationally connected to the other end of the swinging component, and the rolling sealing wheel can translate relative to the grabbing assembly along the vertical direction. Through the design of the structure, even though the rolling sealing component and the grabbing component are arranged on the movable seat and synchronously move in the direction of the plane where the lifting handle is fixed, when the grabbing component moves up and down to grab the lifting handle, the rolling sealing wheel of the rolling sealing component can translate relative to the grabbing component along the vertical direction, such as lifting, so that interference caused by the fact that the rolling sealing component is abutted to the lifting handle fixed plane and further the movement of the grabbing component in the vertical direction when the grabbing component moves downwards can be avoided. After the grabbing component is lifted upwards to reset, the swinging component can drive the rolling sealing wheel of the rolling sealing component to descend, so that when the grabbing component synchronously moves along the direction of the plane of the handle fixing table surface, the rolling sealing wheel of the rolling sealing component descends to press the end part of the handle, and synchronously moves the end part of the rolling handle to fix the end part of the rolling handle.

The specific structure and arrangement of the swinging component are not limited, and in one implementation, the swinging component comprises an elastic swinging arm, one end of which is connected with the movable seat, and the other end of which is connected with the rolling sealing component. Specifically, one end of the elastic swing arm may be connected to the movable seat by a hinge, a bolt, or other connection means that allows one end of the swing arm to rotate relative to the movable seat. The other end of the elastic swing arm can be connected with a bracket or a mounting seat 23 of the rolling sealing wheel. When the grabbing component moves downwards to grab the lifting handle in use, the rolling sealing component can interfere due to the approach of the rolling sealing component and the lifting handle fixing table top. At this time, the elastic swing arm, due to its own elasticity, can allow the rolling seal wheel to be lifted upwards relative to the grabbing assembly by the pushing of the table top, thereby avoiding interference. After the grabbing component is grabbed and lifted upwards to reset, the elastic swing arm gradually returns to the original position due to the elasticity of the elastic swing arm or the action of external force (such as gravity or a spring) to drive the rolling sealing wheel to descend, so that rolling sealing of the lifting handle is realized. The elastic swing arm may be a spring plate, a compressible spring, or the like.

In another implementation mode, the swinging component comprises a swinging rod and a driving air cylinder, one end of the swinging rod is rotatably connected with the movable seat, the other end of the swinging rod is rotatably connected with the rolling sealing wheel, the driving air cylinder is fixedly connected with the movable seat and is close to the other end of the swinging rod, and the end of a telescopic rod of the driving air cylinder is rotatably connected with the swinging rod, wherein the driving air cylinder drives the swinging rod to swing so as to link the rolling sealing wheel to translate relative to the grabbing component along the direction perpendicular to the fixed table surface of the lifting handle. Specifically, one end of the swing rod is connected with the movable seat through a hinge or other rotation connection mode, so that the swing rod can be allowed to swing within a certain range. The other end of the pendulum rod is connected to the roll-on sealing wheel in a rotationally fixed manner, which connection likewise requires a relative movement of the roll-on sealing wheel in the vertical direction, for example a hinge joint. The driving cylinder can be fixedly connected to the movable seat and is close to the other end of the swing rod. The end part of the telescopic rod of the driving cylinder is connected with the swing rod in a rotating connection mode, so that the swing rod can be driven to swing when the cylinder stretches. When the grabbing component moves downwards, the driving cylinder drives the swing rod to swing, so that the rolling sealing wheel is lifted upwards, and interference with the lifting handle fixing table top is avoided. When the grabbing component is grabbed and lifted upwards to reset, the driving cylinder drives the swing rod to swing again, so that the rolling sealing wheel descends. After the rolling sealing wheel descends in place, the end part of the handle can be fixed under the rolling action of the rolling sealing wheel along with the synchronous movement of the grabbing component in the direction of the plane where the handle fixing table board is located.

In the above-mentioned scheme, the position on the sheet material at one side of the handle opening 1005 may be pre-coated with glue, and the rolling action of the rolling sealing wheel makes the end portion of the handle fully contact with the glue to achieve fixation.

Based on the above-mentioned three-dimensional bag manufacturing equipment, referring to fig. 1, 2, 3, 5 and 6, a head card placing station is further arranged on the frame 1 between the feeding station and the handle fixing station, a head card placing device 20 is arranged on the head card placing station, the head card placing device 20 comprises a head card grabbing mechanism 21 and a head card feeding mechanism 22, the head card feeding mechanism 22 is used for conveying the head cards to one side of the sheet material on the head card placing station one by one, and the head card grabbing mechanism 21 is used for grabbing the head cards conveyed to one side of the sheet material to a head card placing area on the sheet material.

Specifically, the head card placing device 20 further comprises a mounting seat 23 arranged on the frame 1, the head card grabbing mechanism 21 and the head card feeding mechanism 22 are respectively located on two opposite sides of the mounting seat 23, the mounting seat 23 is provided with a head card opening matched with the head card, the head card feeding mechanism 22 conveys the head card into an opening area of the head card opening, the head card grabbing mechanism 21 comprises grabbing pieces capable of grabbing the head card, grabbing driving pieces and grabbing guide pieces, the grabbing driving pieces drive the grabbing pieces to grab the head card through the head card opening, then move along the grabbing guide pieces and place the head card at a preset position of a base material, the head card feeding mechanism 22 comprises a main feeding piece 221, a secondary feeding piece 222 and a feeding guide piece 223, the main feeding piece 221 and the secondary feeding piece 222 are located in an accommodating space on one side of the mounting seat 23, alternately move along the feeding guide piece 223 towards the mounting seat 23, and feed the head card in the accommodating space to the opening area.

Such a head card placing device 20 includes a mount 23, and a head card gripping mechanism 21 and a head card feeding mechanism 22 provided on both opposite sides of the mount 23, the mount 23 being mounted on the side of a carrier bag production facility transporting a base material, and the head card fed by the head card feeding mechanism 22 being movable and placed on a preset position of the base material by a gripping member.

Specifically, snatch the driver drive and snatch the piece and remove along snatching the guide, can snatch the head card when snatching the head card opening of piece through mount pad 23 to remove the head card along snatching the guide and place in the preset position of substrate, snatch the guide and can ensure to snatch the piece and keep stable at the removal in-process, and accurately place the head card in the preset position of substrate.

The main feeding member 221 and the sub feeding member 222 are located in the accommodating space on one side of the mounting seat 23, and alternately move along the feeding guide member 223 toward the mounting seat 23 to feed the head card in the accommodating space to the head card opening area, and taking the case that the main feeding member 221 firstly feeds the head card to the head card opening area, even if the head card on the main feeding member 221 is fed to the head card opening area and is grabbed by the grabbing member, the sub feeding member 222 moves along the feeding guide member 223 immediately after the head card is fed to the head card opening area, and the main feeding member 221 withdraws to supplement the new head card, so that the grabbing member can always grab the head card from the head card opening, the continuous feeding of the head card is realized, the problem that the machine is required to be stopped because the head card is fed is avoided, and the production efficiency is improved. Meanwhile, the feeding of the head card is uninterrupted, so that the process of stopping and debugging again is avoided, and the waste of the base material is reduced.

Further, the secondary feeding member 222 is located on one side of the primary feeding member 221 near the mounting seat 23, the secondary feeding member 222 can be switched between an initial state of being staggered with the head card opening and a feeding state of being aligned with the head card opening, and the primary feeding member 221 is provided with a avoiding portion adapted to the secondary feeding member 222. The primary feed drive drives the primary feed 221 along the feed guide 223 toward the mount 23 until the primary feed end of the primary feed 221 is flush with the secondary feed end of the secondary feed 222. The secondary feeding member 222 is switched from the initial state to the feeding state, and the secondary feeding driving member drives the secondary feeding member 222 to move along the feeding guide member 223 toward the mounting seat 23, sequentially feeds the head cards in the accommodating space to the head card opening area, and the primary feeding driving member drives the primary feeding member 221 to move along the feeding guide member 223 away from the mounting seat 23, thereby filling the plurality of head cards. In this solution, the secondary feeding member 222 is skillfully designed on the side of the main feeding member 221 near the mounting seat 23, so that the layout is helpful for realizing continuous feeding of the head card, and at the same time, when the main feeding member 221 feeds the head card, the secondary feeding member 222 can be switched to an initial state staggered from the opening of the head card, so as to ensure that the main feeding member 221 is not blocked from feeding the head card.

In the extending direction of the feeding guide 223, the secondary feeding member 222 is located at one side of the primary feeding member 221 near 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 from the head card opening to avoid interfering with the feeding process of the primary feeding member 221, and when the primary feeding driving member drives the primary feeding member 221 to complete the feeding task and to be flush with the secondary feeding member 222, the secondary feeding member 222 is switched to the feeding state to be aligned with the head card opening, and the primary feeding member 221 is driven by the secondary feeding driving member to feed the head card. This arrangement allows the secondary feed 222 to switch to the feed state quickly after the primary feed 221 has completed feeding, taking over the primary feed 221 to continue feeding the head card, while the primary feed 221 is driven by the primary feed drive to move in a direction away from the mounting base 23, thereby facilitating replenishment of the primary feed 221 with a new head card.

The main feeding piece 221 and the secondary feeding piece 222 are compact in layout, the space utilization rate is improved, the whole head card placing device 20 is more compact, and the main feeding piece 221 is provided with the avoiding part matched with the secondary feeding piece 222, so that the main feeding piece 221 cannot collide or interfere with the secondary feeding piece 222 in the moving process, and smooth proceeding of the succession feeding process is ensured.

It should be noted that, the main feeding member 221 and the sub feeding member 222 may be driven by different power sources, and specifically, the head card feeding mechanism 22 further includes a main feeding driving member and a sub feeding driving member, where the main feeding driving member is used to drive the main feeding member 221 to move along the feeding guiding member 223, and the sub feeding driving member is used to drive the sub feeding driving member to move along the feeding guiding member 223. Of course, the main feeding member 221 and the sub feeding member 222 may also be driven by the same power source, which is not limited in this embodiment.

The main feeding driving part includes a main feeding driving motor, and a main transmission belt is provided between the main feeding driving motor and the main feeding part 221. The secondary feed drive includes a secondary feed drive motor with a secondary drive belt disposed between the secondary feed drive motor and the secondary feed 222. Of course, the main feeding driving member and the sub feeding driving member are not limited to the motor, but may be a cylinder, a hydraulic cylinder, or the like, and similarly, regarding the transmission manner between the main feeding driving motor and the main feeding member 221, and between the sub feeding driving motor and the sub feeding member 222, the transmission manner is not limited to the belt transmission manner, but may be a worm gear transmission manner or a chain transmission manner, and those skilled in the art may design according to the actual situation and the specific requirements, and this embodiment is not limited thereto.

Such a head card placing device 20 can be installed at the side of the carrier bag production facility transporting the base material through the mounting base 23, and the head card fed by the head card feeding mechanism 22 can be moved and placed at the preset position of the base material through the gripping member.

The main feeding member 221 includes a main feeding plate extending parallel to an opening plane of the head card opening, and the main feeding plate is connected to a main feeding driving motor through a main transmission belt. The plate surface area of the main feeding member 221 may be larger than the opening area of the head card opening area when seen in a direction perpendicular to the opening plane of the head card opening, and may be equal to the opening area of the head card opening area.

When the main feeding plate feeds the head cards, a plurality of head cards can be stacked and placed on the main feeding plate along the thickness direction, and the plate surface area of the main feeding plate is larger than or equal to the opening area of the head card opening area, so that the main feeding plate can cover or at least match the size of the head card opening, and the head cards can be stably supported and guided to enter the head card opening area.

The secondary feeding member 222 includes a secondary feeding substrate in driving connection with the secondary feeding driving member, a plurality of secondary feeding insertion plates disposed at intervals on the secondary feeding substrate, and an insertion plate driving member in driving connection with the plurality of secondary feeding insertion plates, and a plate surface of each secondary feeding insertion plate as a secondary feeding end extends parallel to the opening plane.

The number of the secondary feeding plugboards may be two, three, four, or other numbers, and in this embodiment, the number of the secondary feeding plugboards is four, however, this embodiment is not limited only.

The avoidance portion is provided as a plurality of avoidance grooves on the main feeding plate, which are opposed to and adapted to the plurality of sub-feeding insertion plates in the extending direction of the feeding guide 223, and in this embodiment, four avoidance grooves are provided on the main feeding plate. And the board driving piece drives the plurality of secondary feeding boards to move along the direction parallel to the opening plane, towards or away from the main feeding board.

The secondary feeding substrate serves as a main body portion of the secondary feeding member 222 and is in transmission connection with the secondary feeding driving member, namely, is connected with a secondary feeding driving motor through a secondary transmission belt, and is used for linking a plurality of secondary feeding plugboards to move along the feeding guide member 223, a plurality of plugboards are arranged on the secondary feeding substrate at intervals, the board surface of each plugboard extends parallel to the opening plane, so that the plugboard can keep parallel to the opening plane when moving, and after the plugboard driving member drives the plurality of secondary feeding plugboards to switch from an initial state to a feeding state, the plugboards can smoothly feed the head card to the opening area of the head card.

Such a head card placement device 20 achieves head card placement by:

a plurality of head cards are stacked on the main feeding member 221, the specific number is not limited, and the main feeding driving member drives the main feeding member 221 to move toward the mounting seat 23 along the feeding guide 223, and the head cards in the accommodating space are sequentially fed to the opening area of the head card opening.

The grabbing driving piece drives the grabbing piece to grab the head clamp from the opening of the head clamp and move to and put on a preset position of the base material along the grabbing guide piece.

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

The main feed drive drives the main feed 221 along the feed guide 223 away from the mount 23 and fills the plurality of head cards.

According to the head card placement method, continuous feeding and placement of the head cards are achieved through alternate feeding of the main feeding piece 221 and the secondary feeding piece 222, even if one of the main feeding piece 221 or the secondary feeding piece 222 is in a head card supplementing state, the other can still continuously feed the head cards, the production efficiency of the handbag is improved, and the grabbing piece can accurately grab the head cards from the head card stack and accurately place the head cards at the preset positions of the base materials, so that the product quality is guaranteed.

The manufacturing equipment for the three-dimensional bag is characterized in that a bag folding station and a bottom card placing station are further arranged on the downstream side of a forming station 50 on a frame 1, the bag folding station is provided with a bag folding device, the bag folding device is used for pressing a 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 for placing bottom cards into the bag body.

Specifically, the bag folding device is not limited in structure, and may include, for example, a folding plate, a driving mechanism (such as a cylinder, a motor, etc.), and a guide mechanism. The folding plate is a 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 requirement. The drive mechanism is responsible for providing the power required for the movement of the folding plate and the guide mechanism ensures that the folding plate moves in a predetermined path. When the formed bag body is conveyed to the bag folding station, the control system can send out an instruction, and the driving mechanism is started to drive the folding plate to move towards the bag body. The folding plates fold the bag body in a predetermined sequence and angle until a desired folded condition is achieved. In the folding process, the guide mechanism ensures that the folding plate can accurately contact the corresponding position of the bag body, so that the folding dislocation is avoided or the bag body is damaged, and after the folding is completed, the driving mechanism can drive the folding plate to return to the initial position to wait for the arrival of the next bag body.

The structure of the bottom card placing device is not limited, and 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 for storing 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 placement 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 can send out an instruction to start the conveying mechanism. The transport mechanism takes the bottom card out of the storage unit and transports it to the placement position along a predetermined path. In the conveying process, the positioning mechanism can ensure that the position of the bottom card is accurate. When the bottom card reaches the placement position, the placement mechanism can be started to place the bottom card into the bag body stably. After the placement is completed, the conveying mechanism and the placement mechanism return to the initial positions and wait for the arrival of the next bag body and bottom card.

Specifically, in the above-described scheme, the bottom card storing unit may be a container or a rack for storing a large number of bottom cards to be placed. In particular, it may be a simple stacking bin in which the bottom cards are stacked neatly together, or a complex storage system with separation and guide structures to ensure that the bottom cards can be removed and transported smoothly. When the bottom card placing device needs to take the bottom card, the control system can send out an instruction to start the conveying mechanism connected with the bottom card storage unit. The transport mechanism may be a belt, roller, or suction cup, etc., which removes the uppermost bottom card from the storage unit and prepares it for transport to the next location. Of course, reference may also be made to the head card placement device 20 for its specific structure.

The conveying mechanism can also be a belt conveyor, a chain conveyor, a roller conveyor or a pneumatic conveying system, etc. Under the instruction of the control system, the conveying mechanism starts to work, takes the bottom card out of the storage unit and smoothly conveys the bottom card to the placement position along a preset path. The positioning mechanism is used for ensuring that the bottom card can be accurately positioned on the placement position. Can be a mechanical clamp, a pneumatic claw, an electromagnet or the like. The design of these positioning mechanisms depends on the shape and size of the bottom card and the accuracy requirements of the placement location. The positioning mechanism will calibrate and position the placement position before the bottom card is transported to the placement position. Then, when the bottom card reaches the placement position, the positioning mechanism can rapidly and accurately clamp or adsorb the bottom card, so that the position of the bottom card is ensured to be accurate. The placing mechanism can be a cylinder, a push rod driven by a motor, a sucker, a mechanical arm or the like. The design of the placement mechanism depends on the shape and size of the bag body, and the placement position and manner of the bottom card. After the control system gives out the instruction, the placement mechanism starts to work. The bottom card can be stably placed in the bag body by pushing, adsorbing or grabbing and the like. In the placing process, the placing mechanism can keep proper strength and speed so as to ensure that the bottom card can be accurately placed at a preset position in the bag body and cannot damage the bag body.

Therefore, the application does not make unique requirements on the specific structures of the bottom card placing device and the bag folding device, and the bottom card placing device and the bag folding device are designed according to actual requirements.

Further, referring to fig. 3, the feeding station, the head card placing station, the handle fixing station, the bag mouth folding station, the forming station 50, the bag folding station and the bottom card placing station are all provided with a sheet conveying mechanism 60, and the sheet conveying mechanism 60 conveys sheets from the previous station to the next station at preset interval time. The sheet material conveying mechanism 60 includes any one of a conveying belt, a movable jaw, and a movable suction cup.

Specifically, when the sheet conveying mechanism 60 adopts a conveying belt, the sheet conveying mechanism 60 may include a driving motor, a transmission roller, a conveying belt body, a carrier roller, a tensioning device, and the like. The driving motor provides power and drives the conveyer belt to circularly move through the transmission roller. The bearing roller is used for supporting the conveyer belt and bearing the sheet material, ensures to carry steadily. Tensioning devices (e.g., tensioner wheels) are used to adjust the tightness of the conveyor belt to prevent slippage or excessive slack. When the driving motor is started, the transmission roller starts to rotate to drive the conveyer belt to circularly move. The web is placed on a conveyor belt and moves forward with the conveyor belt. The conveying speed and stability of the conveying belt can be controlled by adjusting the speed of the driving motor and the tightness of the tensioning device. When the production direction needs to be changed, the device can be realized by arranging a steering roller, a sliding rail and the like.

Where the sheet transport mechanism 60 employs movable jaws, the movable jaws may include a jaw body, a drive (e.g., cylinder, motor, etc.), a guide mechanism. The clamping jaw body is used for clamping sheet materials, and the driving device provides power to enable the clamping jaw to open and close. The guide mechanism ensures that the jaws maintain a stable trajectory during movement. When the control system sends out an instruction, the driving device is started to drive the clamping jaw body to move towards the sheet material. When the clamping jaw contacts the sheet material, the clamping jaw closes to clamp the sheet material. Then, the driving device continues to work to drive the clamping jaw and the sheet material to move to the next station together. After reaching the target position, the jaws open to release the web.

Where the sheet transport mechanism 60 employs a movable suction cup, the movable suction cup may include a suction cup body, a vacuum generating device (e.g., a vacuum generator), a driving device (e.g., a cylinder, a motor, etc.), a guide mechanism. The sucking disc body is used for adsorbing the sheet material, and the vacuum generating device provides negative pressure to enable the sucking disc to generate adsorption force. The driving device provides power to enable the sucker to move, and the guiding mechanism ensures that the sucker keeps a stable track in the moving process. When the vacuum generating device is started, the sucker body generates negative pressure to adsorb the sheet materials. Then, the driving device is started to drive the sucking disc and the sheet material to move to the next station together. After reaching the target position, the vacuum generating device stops working, and the sucking disc releases the sheet material.

In the above, the manufacturing equipment of the three-dimensional bag provided by the application realizes automation of the production process of the three-dimensional bag through the integrated manufacturing equipment. The whole process almost does not need manual intervention from the steps of sheet material conveying, head card placement, folding edge of a handle fixed to a bag opening, forming of a bag body, inserting of the folding edge, sealing of the bag body, folding of the bag body and placement of a bottom card, production efficiency is greatly improved, labor cost is reduced, and product marketing period is shortened.

And just can realize that the sack hem 1003 is pegged graft and seal in the bag body shaping in-process, the sack hem 1003 junction is more even, and the junction is pegged graft more firmly to can ensure the aesthetic property and the structural stability of the bag body, and follow-up need not extra roll over mouthful machine and carry out processes such as sack hem mouth, not only the manufacturing process is simple, can prevent that the bag body after the shaping from being pulled the damage, and whole preparation equipment is compacter, occupation space is littleer, can further satisfy more manufacturer's ground needs. When the pocket mouth folds 1003 are folded in advance before the shaping of the pocket body, at least one pocket mouth fold 1003 of the pocket mouth folds 1003 formed on two sides of the sheet in the length direction opens at a preset angle relative to the inner wall of the sheet body, so that the pocket mouth folds 1003 can be stably spliced without the action of folding and opening at the joint in the shaping process. The sealing of the pocket mouth folded edge 1003 is realized by utilizing the plugging mode, so that extra operation steps are avoided, and the production process and the equipment structure are further simplified. The manufacturing equipment can not only manufacture the three-dimensional bag with good aesthetic property and high bag body strength at high efficiency through continuous feeding, efficient edge folding and splicing and sealing actions and simplified process, but also improve the success rate of splicing and sealing at the joint of the bag mouth edge folding 1003, thereby greatly improving the manufacturing yield of the three-dimensional bag.

Referring to fig. 15 in combination with fig. 1,2,3, 11, 14, 15, the present application also provides a manufacturing method of a manufacturing apparatus for a three-dimensional bag of the above structure, and includes the steps of:

S1, conveying stacked sheets to a head card placing station one by a sheet feeding device 10;

s2, the head card placing device 20 of the head card placing station places the head cards one by one in a head card placing area preset corresponding to the sheet material;

s3, fixing two ends of each handle on edges of a handle opening 1005 on the corresponding sheet conveyed to the handle fixing station by the handle fixing device 30;

S4, the pocket mouth flanging device 40 is used for opening and folding at least one pocket mouth flanging 1003 on two sides of the sheet material in the length direction at a preset angle;

S5, the bag body forming mechanism 51 turns over the corresponding area of the sheet material to form a bag body;

S6, dragging a bag mouth hem 1003 at the joint of the side faces 1002 in the bag body by the hem inserting mechanism 52, and inserting the bag mouth hem 1003 and the other bag mouth hem 1003 after misplacement;

S7, the bag body sealing mechanism 53 seals the joint of the side faces 1002 of the bag body;

When the manufacturing method is used for manufacturing the handbag, the stacked sheets (such as paper, plastic films or other materials suitable for manufacturing bags) are conveyed to a head card placing station on a production line one by one. This ensures that the subsequent steps can process each sheet continuously and efficiently. At the head card placement station, the head cards (which are typically used to support the mouth of the bag and increase its structural stability) are placed one by one at preset locations on each sheet, and the location and number of the head cards may be determined according to the design requirements of the bag. Next, a handle (a handle for conveniently carrying the bag) is fixed to the sheet material conveyed to the handle fixing station, and both ends of the handle are generally firmly attached to edges of a handle opening 1005 preset in the sheet material to ensure its stability and durability. At the pocket hemming station, the pocket hemming device 40 folds at least one pocket of the sheet material in the length direction, specifically at a predetermined angle, to provide for subsequent insertion and sealing steps, and the pocket forming mechanism 51 then folds the corresponding region of the sheet material to initially form the pocket shape, specifically, the bottom, side 1002 or other portion of the sheet material, to create the interior space and structure of the pocket. Next, the hem insertion mechanism 52 inserts one pocket hem 1003 and the other pocket hem 1003 at the junction of the sides 1002 in the pocket in a staggered manner. The plugging method can enhance the structural strength of the bag mouth and provide a sealing method without additional sewing or bonding, and after the plugging is completed, the bag body sealing mechanism 53 seals the connection part of the side face 1002 of the bag body, specifically can be realized by sewing, bonding or other appropriate technological methods, so as to ensure the integrity and the sealing performance of the bag. Finally, the bag folding device presses the formed bag body into a folded state so as to be convenient for storage and transportation, and the bottom card placing device places a bottom card (used for supporting the bag bottom and increasing the structural stability thereof) into the bag body. The finished bag is finally packaged, distributed or sold.

In the above steps, during the formation of the pouch (steps S5 to S7), the mouth flange 1003 (processed in step S4) is folded and opened at a predetermined angle, and then the misplaced insertion is achieved by the flange insertion mechanism 52 (step S6). The step is followed by the molding of the bag body, so that the key connection action of the bag mouth is ensured in the molding process, and the subsequent processes of bag mouth folding and the like are not needed. After the plugging is completed, the bag body sealing mechanism 53 seals the junction of the side faces 1002 immediately (step S7), so that the instant processing not only ensures the firmness of the bag mouth, but also enables the junction to be smoother, and the aesthetic property and the structural stability of the bag body are improved. Because the bag mouth flange 1003 is folded before the bag body is formed (step S4), and the bag mouth flange is unfolded at a preset angle, no additional flange opening action at the joint is needed in the forming process, and the production process is simplified. The manufacturing equipment is more compact in structure, and because extra mechanical equipment or space is not needed to be additionally arranged for extra pocket processing steps, the compactness of the equipment not only reduces the occupied area, but also reduces the production cost and the maintenance difficulty.

Further, since the pocket mouth folded edge 1003 is inserted and sealed in the forming process, the formed pocket body has stronger structural stability at the joint and can resist the pulling of external force, so that the service life of the pocket body is prolonged, the formed pocket body does not need additional pulling action, the efficiency is high, and the problem that the formed pocket body is damaged by pulling is avoided.

In summary, when the manufacturing method provided by the application is used for manufacturing the three-dimensional bag, the instant bag opening folded edge 1003 is spliced and sealed, the process is simplified, the equipment compactness is improved, the manufacturing efficiency and the yield are improved, the formed bag body is prevented from being pulled and damaged, and other combined actions are realized, so that the aesthetic property and the structural stability of the bag body are ensured, the manufacturing efficiency and the yield of the three-dimensional bag are greatly improved, and the use area and the production requirement of more manufacturers can be met.

The foregoing describes embodiments of the present application in terms of specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. While the description of the application will be presented in connection with a preferred embodiment, it is not intended that the application be limited to this embodiment. Rather, the purpose of the present application is to cover other alternatives or modifications, which may be extended by the claims based on the application. The above description will contain numerous specific details in order to provide a thorough understanding of the present application. The application may be practiced without these specific details. Furthermore, some specific details are omitted from the description in order to avoid obscuring the application. It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other.

It should be noted that in this specification, like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present embodiment, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "inner", "bottom", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship that is conventionally put when the application product is used, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the apparatus or component referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present application.

The terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.

In the description of the present embodiment, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or communicating between two components. The specific meaning of the above terms in the present embodiment can be understood in a specific case by those of ordinary skill in the art.

Claims

1. The manufacturing equipment of the three-dimensional bag comprises a bottom surface, two side surfaces positioned at two sides of the bottom surface, wherein the two opposite sides of the two side surfaces are mutually overlapped, the equipment is characterized by comprising a frame, the frame is sequentially provided with a feeding station, a bag mouth flanging station and a forming station along the production direction,

The feeding station is provided with a sheet feeding device which is used for conveying sheets for forming the three-dimensional bags to the next station one by one;

The bag mouth flanging station is provided with a bag mouth flanging device, the bag mouth flanging device turns over the two sides of the sheet material which is conveyed to the bag mouth flanging station in the length direction of the sheet material inwards to form bag mouth flanging, and at least one of the bag mouth flanging formed on the two sides of the sheet material in the length direction is opened at a preset angle relative to the inner wall of the sheet material body;

The forming station is provided with a bag body forming mechanism, a flanging inserting mechanism and a bag body sealing mechanism,

The bag body forming mechanism is arranged on the frame, corresponding areas of the sheet materials conveyed to the forming stations are folded to form a bag body, at least one side of the bag body forming mechanism is provided with the folding edge inserting mechanism, the folding edge inserting mechanism drags two bag opening folding edges at the joint of two side faces of the bag body to be inserted mutually after the folding edges are staggered, the bag body sealing mechanism is arranged on two sides of the bag body forming mechanism and corresponds to the two side faces of the bag body, and the bag body forming mechanism seals the joint of the two side faces of the bag body after the folding edges of the bag opening are inserted.

2. The apparatus for producing a three-dimensional bag according to claim 1, wherein,

The bag mouth flanging device comprises a pair of flanging assemblies respectively arranged at two sides of the sheet in the length direction, each flanging assembly comprises a turnover mechanism, the turnover mechanism can be arranged on the frame in a turnover manner around the width direction of the sheet and is positioned at the outer side of the corresponding side edge of the bag mouth flanging station in the width direction of the frame, the turnover mechanism can be turned around the width direction of the sheet to enable the sheet to be turned around the corresponding side of the sheet in the length direction to form a bag mouth flanging, and

At least one the hem subassembly still includes supporting mechanism, supporting mechanism can follow the length direction of sheet stock set up movably in the frame, in the width direction of frame is located the corresponding one side edge inboard of sack hem station, supporting mechanism can move to the corresponding one side in the length direction of sheet stock sack hem department, support at least one the medial surface of sack hem, so that corresponding one side the sack hem opens with preset angle for the sheet stock body inner wall.

3. The apparatus for producing a three-dimensional bag according to claim 2, wherein the supporting mechanism comprises a supporting plate extending in the width direction of the sheet material, and a supporting member provided on a side of the supporting plate away from the sheet material, an inclined surface extending obliquely from inside to outside in the longitudinal direction of the sheet material is formed at an end of the supporting member away from the sheet material, and when the bag mouth flange is folded, an outer side edge of the supporting plate is pressed against a flange indentation line preformed on the sheet material, and the inclined surface is supported on an inner side surface of the bag mouth flange.

4. The apparatus for producing a three-dimensional bag according to claim 3, wherein the support member is provided as a plurality of support ribs formed on the stay plate and spaced apart in a longitudinal direction of the stay plate, and upper side wall surfaces of the plurality of support ribs form the inclined surface.

5. The apparatus for producing a three-dimensional bag according to claim 2, wherein the folding mechanism includes a folding plate and a turning drive mechanism, the folding plate is disposed on the frame in a turnable manner around the width direction of the sheet, is located below the corresponding side end portion of the sheet of the bag mouth folding station in the width direction of the frame, and is in transmission connection with the power output end of the turning drive mechanism, and the turning drive mechanism drives the folding plate to turn around the width direction of the sheet.

6. The apparatus for producing a three-dimensional bag according to claim 1, wherein the bag mouth hemming device further comprises a limiting mechanism which is arranged on the frame in a manner of being movable in a vertical direction, a pressing plate is arranged at the lower end of the limiting mechanism, and when the sheet material is conveyed to the bag mouth hemming station, the limiting mechanism links the pressing plate to move downwards and press the sheet material to be relatively fixed with a table top of the bag mouth hemming station.

7. The apparatus for producing a three-dimensional bag according to any one of claims 1 to 6, wherein the bag body forming mechanism comprises a forming die movably provided on the frame in a vertical direction, a forming region is formed on a table surface of the forming station, the forming die is moved in the vertical direction so that a sheet material positioned at the forming station is wrapped outside the forming die to form the bag body, and

The folding edge inserting mechanism can be movably arranged on at least one side of the forming die in the vertical direction, and drags the front face of the corresponding side of the bag body to reciprocate and stagger in the vertical direction relative to the front face of the other side, so that the folding edges of the bag openings at the upper ends of the two side surfaces of the bag body are mutually inserted after being staggered in the vertical direction.

8. The apparatus for producing a three-dimensional bag according to claim 7, wherein the hemming insertion mechanism is provided at a position corresponding to a front face of the respective one side of the bag body on one side of the molding die, a bag body restricting member for restricting movement of the front face of the other side of the bag body in a vertical direction with respect to a side wall of the molding die is provided at a position corresponding to the front face of the other side of the bag body, and

The folding plug-in mechanism comprises a dragging component which is movably arranged along the vertical direction, the dragging component moves reciprocally along the vertical direction, and the front face of the corresponding side of the bag body is dragged to move reciprocally along the vertical direction relative to the front face of the other side.

9. The apparatus for producing a three-dimensional bag according to claim 7, wherein the two sides of the molding die corresponding to the bag body are provided with the hemming plug-in mechanisms, both of the hemming plug-in mechanisms comprise dragging parts movably arranged along the vertical direction, wherein,

The dragging component of one edge folding grafting mechanism drags the front face of the corresponding side of the bag body to move upwards and then reset, and the dragging component of the other edge folding grafting mechanism drags the front face of the other side of the bag body to move downwards and then reset, so that the edge folds of the bag openings at the upper ends of the two side faces of the bag body are mutually spliced after being staggered in the vertical direction.

10. The apparatus for producing a three-dimensional bag according to claim 7, wherein the hemming and inserting mechanism is a drag plate provided on a side of the molding die corresponding to at least one front surface of the bag body, the drag plate being connected to a side wall of the molding die so as to be movable in a vertical direction, and when the sheet material is wrapped outside the molding die, an inner wall of the bag body on the corresponding side of the formed bag body is bonded to an outer wall of the drag plate, and the drag plate is moved in the vertical direction so as to drag the front surface on the corresponding side of the bag body to reciprocate in the vertical direction with respect to the front surface on the other side, or

The folding plug-in mechanism is a dragging belt arranged on one side of the forming die corresponding to at least one front side of the bag body, and when the sheet material is wrapped on the outer side of the forming die, the dragging belt is close to and abutted against the outer wall of the bag body on the corresponding side of the bag body so as 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 apparatus for producing a three-dimensional bag according to claim 7, wherein the bag body sealing mechanism comprises a pushing member arranged on the frame and a sealing member connected with a power output end of the pushing member in a transmission manner, and the pushing member pushes the sealing member to move along the length direction of the frame so that the sealing member abuts against and seals the side surface connection part of the bag body.

12. The apparatus for producing a three-dimensional bag according to claim 1 to 6, wherein a handle fixing station is further provided on the frame between the feeding station and the bag mouth folding station, a handle fixing device is provided on the handle fixing station, the handle fixing device comprises a handle feeding mechanism, a handle grabbing mechanism and a handle fixing mechanism provided on the frame,

The handle feeding mechanism is arranged below the table top where the handle fixing station is located, and is used for moving two ends of a handle to the position, on the handle fixing station, of the lower portion of the handle opening of the sheet stock, the handle grabbing mechanism is movably arranged above the table top where the handle fixing station is located along the vertical direction, is used for grabbing two ends of the handle to the upper portion of the handle opening and releasing the handle from the lower portion of the handle opening, and the handle fixing mechanism is arranged above the table top where the handle fixing station is located and is located on one side of the handle grabbing mechanism, and is used for fixing two ends of the handle to the edge position of the handle opening.

13. The apparatus for producing three-dimensional bags according to claim 12, wherein a head card placing station is further provided on the frame between the feeding station and the handle fixing station, a head card placing device is provided on the head card placing station, the head card placing device comprises a head card grabbing mechanism and a head card feeding mechanism,

The head card feeding mechanism is used for conveying the head cards to one side of the sheet material on the head card placing station one by one, and the head card grabbing mechanism is used for grabbing the head cards conveyed to one side of the sheet material to a head card placing area on the sheet material.

14. The apparatus for producing a three-dimensional bag according to claim 13, wherein the head card placement device further comprises a mounting seat arranged on the frame, the head card grabbing mechanism and the head card feeding mechanism are respectively arranged on two opposite sides of the mounting seat, and the mounting seat is provided with a head card opening matched with a head card, and the head card feeding mechanism conveys the head card into an opening area of the head card opening, wherein the head card grabbing mechanism and the head card feeding mechanism are respectively arranged on two opposite sides of the mounting seat

The head card grabbing mechanism comprises a grabbing piece, a grabbing driving piece and a grabbing guide piece, wherein the grabbing piece can grab a head card, the grabbing driving piece drives the grabbing piece to grab the head card through the head card opening, then the grabbing driving piece moves along the grabbing guide piece and places the head card at a preset position of a base material;

the head card feeding mechanism comprises a main feeding piece, a secondary feeding piece and a feeding guide piece, wherein the main feeding piece and the secondary feeding piece are positioned in an accommodating space at one side of the mounting seat and alternately move along the feeding guide piece towards the mounting seat, and the head card in the accommodating space is fed to the head card opening area.

15. The apparatus for producing three-dimensional bags according to claim 13, wherein a bag folding station and a bottom card placing station are further arranged on the machine frame at the downstream side of the forming station,

The bag folding station is provided with a bag folding device, the bag folding device is used for pressing 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 for placing bottom cards into the bag body.

16. The apparatus of claim 15, wherein the feeding station, the head card placing station, the handle fixing station, the bag mouth folding station, the forming station, the bag folding station, and the bottom card placing station are all provided with a sheet conveying mechanism therebetween, and the sheet conveying mechanism conveys the sheet from the previous station to the next station at a predetermined interval.

17. The apparatus for producing three-dimensional bags according to claim 16, wherein said sheet material conveying mechanism comprises any one of a conveyor belt, a movable jaw, and a movable suction cup.

18. The apparatus for producing a three-dimensional bag according to claim 1 to 6, wherein the sheet feeding device comprises a sheet height adjusting mechanism and a sheet conveying mechanism,

The sheet height adjusting mechanism is arranged on the frame and is positioned at the upstream side of the feeding station, sheets are stacked on the sheet height adjusting mechanism, and the top height of the sheets can be adjusted in the vertical direction;

The sheet conveying mechanism is arranged on the downstream side of the feeding station and comprises a first conveying assembly and a second conveying assembly which are sequentially arranged along the production direction, the first conveying assembly comprises an extracting component which extracts the uppermost one of the sheets placed in a stacking manner and conveys the uppermost one to the inlet end of the second conveying assembly along the production direction, the second conveying assembly comprises a conveying component which can move along the production direction, the sheet conveyed to the inlet end of the second conveying assembly is at least partially attached to the conveying component and conveyed to the outlet end of the second conveying assembly through the conveying component, and the second conveying assembly comprises a conveying component which can move along the production direction, wherein the sheet is at least partially attached to the conveying component

The machine frame is also provided with a deviation rectifying assembly positioned on the downstream side of the second conveying assembly, the deviation rectifying assembly comprises a driving part and an adjusting part which are arranged on the machine frame, the adjusting part is connected with the power output end of the driving part in a transmission way and can move along the width direction of the machine frame,

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 a feed inlet of a next station.

19. A method for manufacturing a three-dimensional bag, which 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:

s4, the pocket mouth flanging device is used for opening and folding at least one pocket mouth flanging at least in two sides of the sheet material in the length direction at a preset angle;

S5, the bag body forming mechanism turns over the corresponding area of the sheet material to form a bag body;

s6, dragging one pocket mouth edge at the side surface joint of the pocket body by the edge folding and inserting mechanism, and inserting the pocket mouth edge and the other pocket mouth edge after misplacement;