Bag body forming system, method and bag body forming mold for handbag

Abstract

The present invention discloses a bag body forming system, method and bag body forming mold for a handbag, wherein the forming system includes a forming mold that can move in a vertical direction, and a receiving platform located below the forming mold. The forming mold includes a mold body, and two first side walls that correspond to the two side surfaces of the handbag. During the production process, after the substrate with a pre-formed folded edge is pressed by the forming mold, the grasping portion of at least one first side wall of the forming mold grasps the corresponding side surface of the substrate on one side, and drives the side surface of the substrate on one side to move back and forth relative to the mold body of the forming mold along the height direction of the mold body, so that the folded edges at both ends of the substrate are plugged into each other in the height direction of the mold body. Through this bag body forming system, a bag body with high supporting strength can be produced with a streamlined process, and the bag mouth strength of the bag body is enhanced by the integrated bag mouth folded edge.

Description

Technical Field

[0001] The invention relates to the field of handbag production, and in particular to a bag body forming system, method and bag body forming mold for a handbag. Background Art

[0002] Handbags have become an indispensable and common tool in today's society. Due to the high practicality and portability of handbags, people have gradually put forward different requirements for the manufacturing of handbags. For example, some users want handbags to be as light and easy to fold as possible, while others want handbags to be as strong and not easy to deform. Based on this, handbags have different improvements in shape, material selection, and handle fixation.

[0003] Traditional handbags are usually formed by gluing the bottom ends of the side walls of the bag body together by gluing (e.g., paper bags) or hot pressing (e.g., non-woven bags). However, the bottom of this type of handbag is only connected by connecting the bottom ends of the side walls of the bag body. When the bag is subjected to heavy objects or is placed for a long time, the bottom of the bag body will fail to connect, resulting in the bottom of the bag being transparent, the items in the bag falling out, and other undesirable situations. In addition, the bag opening of the handbag is directly formed by the top of the side wall of the bag body, which is made of the same material as the side wall of the bag body and is open to the outside. Its own strength is low, and objects are also passed through the bag opening. Therefore, the bag opening of the handbag is a very easy to damage part. Furthermore, the handle of the handbag is usually set at the bag opening, and is often fixed to the edge of the bag opening by bonding or fixings. However, since the bag opening of the handbag itself has low strength, the strength of the connection between the bag opening and the handle is also low, and users often suffer from the damage of the connection between the bag opening and the handle. Summary of the invention

[0004] The purpose of the present invention is to solve the defects of the existing handbags, that is, the bottom of the bag is easy to open and the strength of the bag opening is insufficient. Specifically, the present invention proposes a new bag body forming system for handbags. The handbags made according to the bag body forming system of the handbag directly press the base material of the handbag through a forming mold, so that the bag body and the two side walls are designed as an integrated body, avoiding the problem of loose connection parts caused by the bottom of the bag connecting the lower ends of the side walls together. Furthermore, according to the bag body forming system proposed by the present invention, before the base material of the handbag is pressed by the forming mold, the two side ends corresponding to the bag opening of the base material and the bag opening of the handbag are folded inward, and then after the forming mold presses the base material, the two side ends are relatively formed to form a bag opening, and the end edges are plugged and joined to each other, so as to form a complete bag opening folded edge at the bag opening of the entire handbag. Under this structure, the strength of the bag opening with the bag opening folded edge is significantly enhanced. In addition, by arranging the end of the handle inside the bag opening folded edge and between the inner folded part and the inner wall of the bag body, the strength of the bag opening itself and the connection position between the bag opening and the handle are effectively strengthened.

[0005] Specifically, the handbag made by the above-mentioned bag forming system includes a bottom surface, two side surfaces located on both sides of the bottom surface, and the opposite sides of the two side surfaces overlap each other. The bag forming system provided by the present invention includes a forming mold that can be moved in the vertical direction, and a receiving platform located below the forming mold. Among them, the forming mold includes a mold body, and two first side walls corresponding to the two side surfaces of the handbag respectively; the lower end of the mold body is adapted to the shape of the bottom surface of the handbag, and at least one of the two first side walls of the forming mold is provided with a gripping portion adapted to the side surface of the corresponding handbag, and can reciprocate relative to the mold body along the height direction of the mold body. When the bag forming system provided by the present invention is used to form a bag, the substrate forming the handbag is pre-folded inward at both ends in the length direction and transferred to the receiving platform, which is located directly below the forming mold; the forming mold presses down the substrate, and the substrate is bent around the forming mold to form a " "-shaped structure and surrounds the forming mold; the grabbing portion of at least one first side wall of the forming mold grabs the corresponding side surface of the substrate and drives the side surface of the substrate to reciprocate relative to the mold body along the height direction of the mold body, so that the folded edges at both ends of the substrate are plugged into each other in the height direction of the mold body.

[0006] With the above technical solution, before the substrate is transferred to the receiving platform, the two ends of the substrate in the length direction are first folded inwards with folded edges. After the forming mold presses down the substrate, the substrate will bend around the forming mold to form a " "-shaped structure and surrounds the forming mold, the outer ends of the side surfaces of the substrates on both sides in the width direction need to be bent toward each other and the corresponding ends overlap and overlap each other to form a bag body. At this time, the folded edge of the outer end of the side surface of one side of the substrate is located inside the folded edge of the outer end of the side surface of the other side of the substrate. If the side surface of one side of the substrate is directly overlapped with the opposite sides of the side surface of the other side of the substrate, the folded edges of the side surfaces of the substrates on both sides are only connected by the single-side surfaces that are in contact with each other, and the connection strength is the same as the connection strength without folded edges, and the connection strength of the two sides of the handbag at the bag opening cannot be improved.

[0007] In the present embodiment, at least one of the two first side walls of the forming mold of the bag forming system is provided with a gripping portion adapted to the side of the corresponding handbag. After the substrate surrounds the forming mold, the gripping portion of at least one first side wall grips the corresponding side of the substrate and drives the side of the substrate to move relative to the mold body along the height direction of the mold body, so that a height difference is formed between the two substrate sides, and the folded edges of the two are staggered in the height direction. At this time, the folded edges on the side of the substrate will open a certain angle from the bending point (which can be pressed with a crease in advance) under the action of its own restoring force. Further, at least one first side wall is linked by the gripping portion to return the corresponding side of the substrate to a position flush with the side of the other side of the substrate. During the return process, the upper end of the side of the substrate on one side is inserted from the bending point between the side of the substrate on the other side and the folded edge, so that the folded edges at both ends of the substrate are connected to each other in the height direction of the mold body. At this time, the side of the substrate on one side and the opposite sides of the side of the substrate on the other side are overlapped with each other, and the connection strength of the side of the handbag at the bag mouth is ensured on the premise of completing the bag body forming.

[0008] The handbag processed by this bag forming system has its bottom surface and the side surfaces formed in one piece, which greatly enhances the connection strength between the bottom surface and the side surfaces of the handbag and improves the support of the handbag compared to the prior art in which the bottom ends of the side walls of the bag are bonded together to form the bottom of the bag. In addition, by forming an integrated bag opening fold at the bag opening, the strength of the bag opening is improved, reducing the risk of tearing the bag opening when loading and unloading items.

[0009] In addition, the bag body forming system of this handbag can make the folded edges at both ends of the substrate with pre-formed folded edges be inserted into each other in the height direction of the mold body during the forming process, which greatly simplifies the bag forming process of the handbag with bag mouth folded edges. There is no need to set up an additional bag-folding machine for folding the bag mouth, saving the space occupied by the handbag forming equipment.

[0010] Furthermore, an embodiment of the present invention also discloses a bag body forming system for a handbag, wherein a side wall guide assembly extending in the height direction is arranged between one of the two first side walls of the forming mold and the mold body, and the other is fixedly arranged on the side of the mold body.

[0011] With the above technical solution, during the molding process, a gripping portion of a first side wall grips the corresponding side surface of the substrate and drives the side surface of the substrate to move relative to the mold body, so that the folded edge of the side surface of the substrate on one side is completely staggered with the folded edge of the side surface of the substrate on the other side in the height direction, for example, the upper end of the folded edge at the end of the side surface of the substrate on one side is lower than the lower end of the folded edge at the end of the side surface of the substrate on the other side, or the lower end of the folded edge at the end of the side surface of the substrate on one side is higher than the upper end of the folded edge at the end of the side surface of the substrate on the other side. Furthermore, when the gripping portion of the first side wall grips the corresponding side surface of the substrate and drives the side surface of the substrate on one side to return to its original position relative to the mold body, the folded edge of the side surface of the substrate on the lower side will be inserted between the side surface of the substrate on the higher side and the corresponding folded edge, and the folded edges at both ends of the substrate can be plugged into each other in the height direction of the mold body.

[0012] Therefore, a side wall guide assembly extending in the height direction is arranged between a first side wall and the mold body, and the other is fixedly arranged on the side of the mold body, so that when the molding mold realizes the mutual insertion of the folded edges at both ends of the substrate, the required actions are simpler, and there are fewer parts in the molding mold, and the possibility of failure is small, thereby improving the service life and reliability of the molding mold.

[0013] In addition, when the first side wall drives the side surface of one substrate to return, it moves obliquely relative to the height direction, which makes it easier for the folded edge of the side surface of one substrate to be plugged into the folded edge of the side surface of the other substrate.

[0014] Furthermore, another embodiment of the present invention discloses a bag body forming system for a handbag, wherein a side wall guiding assembly extending in a height direction is provided between each of two first side walls of the forming mold and the mold body.

[0015] By adopting the above technical scheme, during the molding process, the two first side walls respectively drive the corresponding side surfaces of the substrate to move in opposite directions in the height direction, so that the folded edges on the side surfaces of the substrate on both sides are completely staggered in the height direction. For example, one first side wall drives one side surface of the substrate to move downward relative to the mold body, and the other first side wall drives the other side surface of the substrate to move upward relative to the mold body, until the upper end of the folded edge at the end of one side surface of the substrate is lower than the lower end of the folded edge at the end of the other side surface of the substrate. When the two first side walls drive the corresponding side surfaces of the substrate to return, the folded edge of the substrate side surface on the lower side will be inserted between the substrate side surface and the folded edge on the upper side.

[0016] Therefore, side wall guide assemblies extending in the height direction are arranged between the two first side walls and the mold body. Since the side surfaces of the substrate on both sides will move away from each other in the height direction under the linkage of the corresponding first side walls, compared with the structure in which a side wall guide assembly is arranged between one first side wall and the mold body, the stroke of a single first side wall in the height direction is shorter, the deformation generated on one side of the substrate is smaller, and the substrate is not easily damaged.

[0017] The embodiment of the present invention further discloses a bag body forming method of a handbag, and the bag body forming method and the bag body forming system mentioned above comprise the following steps:

[0018] S1: die-cutting the raw material to form a substrate for a handbag, the substrate sequentially including a first substrate side, a substrate middle, and a second substrate side in the length direction, wherein the substrate middle is adapted to the shape of the bottom surface of the handbag, and the first substrate side and the second substrate side are adapted to the shapes of the two side walls of the handbag respectively, and bottom folding extensions are respectively provided at both ends of the substrate middle in the width direction;

[0019] S2: bending the free ends of the first substrate side surface and the second substrate side surface in the length direction inward respectively to form folded edges;

[0020] S3: The substrate with the folded edge is transferred to the receiving platform, which is located directly below the forming mold. The forming mold moves in the vertical direction, and the lower end presses down the middle of the substrate. The substrate is bent around the forming mold to form a " "-shaped structure and surrounds the forming mold;

[0021] S4: The grabbing portion of at least one first side wall of the forming mold grabs the corresponding side surface of the substrate and drives the side surface of the substrate to reciprocate relative to the mold body of the forming mold along the height direction of the mold body, so that the folded edges at both ends of the substrate are plugged into each other in the height direction of the mold body.

[0022] By adopting the above technical scheme, the bag body forming method of this handbag makes the free ends of the first substrate side and the second substrate side in the length direction bend inward before the substrate is formed to form a folded edge. Further, after the substrate is transferred to the receiving platform and pressed by the forming mold, the grasping portion of at least one first side wall of the forming mold grasps the corresponding side of the substrate and drives the side of the substrate to move back and forth along the height direction of the mold body relative to the mold body of the forming mold, so that the folded edges at both ends of the substrate are plugged into each other in the height direction of the mold body, thereby completing the bag body forming process of the handbag. Compared with the prior art, in which the handbag is processed by other equipment after the bag body is formed, and then the edge of the bag mouth of the handbag is folded, when producing a handbag with a folded edge, the folded edge is already processed and formed before the substrate is pressed down by the mold, and there is no need to perform secondary processing on the produced bag body, which greatly improves the production efficiency of the handbag.

[0023] The embodiment of the present invention also discloses a bag body forming mold for a handbag, which is used in the bag body forming system mentioned above, wherein the forming mold includes a mold body, a pair of first side walls, and a pair of second side walls, wherein the pair of first side walls are arranged on opposite sides of the mold body in the first direction, respectively corresponding to the two sides of the handbag, and the pair of second side walls are arranged on opposite sides of the mold body in the second direction, respectively arranged between the opposite ends of each side of the pair of first side walls, and when viewed along the height direction of the mold body, the contour formed by the pair of first side walls and the pair of second side walls is adapted to the cross-sectional peripheral shape of the handbag. In addition, a side wall guide assembly is arranged between at least one first side wall and the mold body, and at least one first side wall can reciprocate along the side wall guide relative to the mold body along the height direction of the mold body, and is provided with a gripping portion adapted to the side of the corresponding handbag. In the embodiment of the present invention, the first direction is parallel to the length direction of the substrate forming the handbag, and the second direction is parallel to the width direction of the substrate forming the handbag.

[0024] With the above technical solution, the forming mold includes a mold body, a pair of first side walls, and a pair of second side walls. When viewed along the height direction of the mold body, the contour formed by the pair of first side walls and the pair of second side walls is adapted to the cross-sectional peripheral shape of the handbag. Therefore, when the forming mold is linked by the mold driving mechanism, the lower end of the forming mold is used to squeeze the substrate, and the side surfaces of the substrate are bent and attached to the side walls of the forming mold, the substrate can be surrounded to form the basic shape of the bag body.

[0025] Furthermore, when the folded edge is pre-folded inward on the side of the substrate, the grasping portion of at least one first side wall of the forming mold grasps the corresponding side of the substrate and drives the side of the substrate to move back and forth relative to the mold body along the height direction of the mold body, so that the folded edges at both ends of the substrate are plugged into each other in the height direction of the mold body. This forming mold can not only punch the substrate to form the shape of the bag body, but also, through the action of at least one first side wall, the folded edges pre-folded inward on the sides of the two substrates can overlap each other, so that during the forming process, the substrate can also be processed into a bag mouth fold to increase the structural strength of the bag mouth. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A structural schematic diagram of a handbag is provided for an embodiment of the present invention;

[0027] Figure 2 A schematic diagram of the structure of a bag forming system provided by an embodiment of the present invention;

[0028] Figure 3 A schematic structural diagram of a molding die, a die driving mechanism and a bottom support provided in an embodiment of the present invention;

[0029] Figure 4 A schematic diagram of the structure of a bottom insert component and a side seal assembly provided in an embodiment of the present invention;

[0030] Figure 5 A schematic structural diagram of a substrate provided in an embodiment of the present invention being located below a forming mold;

[0031] Figure 6 for Figure 5 Schematic diagram of the structure of the medium substrate;

[0032] Figure 7 A schematic diagram of a structure in which a substrate provided by an embodiment of the present invention is pressed downward by a forming mold, and a bottom folded extension portion is pushed and bent by a bottom inserting component;

[0033] Figure 8 for Figure 7 Schematic diagram of the structure of the medium substrate;

[0034] Fig. 9 A schematic structural diagram of two opposite ends of the substrate side surfaces of the substrate provided by an embodiment of the present invention being pushed and bent by the side insertion components;

[0035] Fig.10 for Fig. 9 Schematic diagram of the structure of the medium substrate;

[0036] Fig.11 A schematic structural diagram of a substrate provided in an embodiment of the present invention, in which one side surface of the substrate is linked to the first side wall of the forming mold and staggered with another side surface of the substrate;

[0037] Fig.12 for Fig.11 Schematic diagram of the structure of the medium substrate;

[0038] Fig.13 for Fig.12 , a partial schematic diagram of the folded edges of two substrate sides;

[0039] Fig.14 A schematic diagram of a structure in which the folded edges of two substrate sides of a substrate provided by an embodiment of the present invention are plugged into each other;

[0040] Fig.15 for Fig.14 Schematic diagram of the structure of the medium substrate;

[0041] Fig.16 for Fig.15 , a partial schematic diagram of the folded edges of two substrate sides;

[0042] Fig.17 A schematic structural diagram of a molding die provided by an embodiment of the present invention;

[0043] Fig.18 A schematic structural diagram of a molding die provided by an embodiment of the present invention from another perspective;

[0044] Fig.19 A schematic structural diagram of a first side wall and a side wall guide assembly of a molding die provided in an embodiment of the present invention.

[0045] Fig. 20 A flowchart of a bag forming method provided in an embodiment of the present invention.

[0046] Description of reference numerals:

[0047] 10. Handbag;

[0048] 101, bottom surface; 102, side surface; 1021, connecting surface; 103, folded edge; 104, cutout; 105, handle; 106, bottom bending portion;

[0049] 20. Base material;

[0050] 201, middle part of substrate; 202, side of substrate; 2021, extension part of side of substrate; 203, bottom fold extension part;

[0051] 30. Bag forming system;

[0052] 310, forming mold;

[0053] 311, mold body; 3110, body support; 312, first side wall; 3121, gripping portion; 3122, suction cup; 3123, guided member;

[0054] 313, second side wall; 3131, air intake hole;

[0055] 314, side wall guide assembly; 3141, side wall drive member; 3142, guide member;

[0056] 320, undertake the platform;

[0057] 330. mold driving mechanism; 331. connecting plate;

[0058] 340, bottom bracket;

[0059] 350, bottom insert component;

[0060] 360, side sealing assembly; 361, side inserting component; 362, pressing component;

[0061] 40. Rack;

[0062] 50. The length direction of the substrate;

[0063] 60. The width direction of the substrate. DETAILED DESCRIPTION

[0064] Traditional handbags usually form the bottom of the bag body by gluing the bottom ends of the side walls of the bag body together (e.g., paper bags) or hot pressing (e.g., non-woven bags). However, the bottom of this type of bag is only made by connecting the bottom ends of the side walls of the bag body together. When the bag is loaded with heavy objects or left for a long time, the connection at the bottom of the bag body may fail, resulting in the bag bottom being transparent and the items in the bag falling out. In addition, the bag opening is directly formed by the top of the bag side wall, which is made of the same material as the bag side wall and is open to the outside. It has low strength, and objects enter and exit through the bag opening. Therefore, the bag opening of the bag is a very easy-to-break part, and it is necessary to ensure that the bag opening of the bag has a high structural strength.

[0065] To this end, the present invention provides a bag body forming system for a handbag, wherein a forming mold of the forming system comprises a mold body, and two first side walls respectively corresponding to two side surfaces of the handbag, at least one of which is provided with a gripping portion adapted to the corresponding side surface of the handbag, and can reciprocate relative to the mold body along the height direction of the mold body; after the substrate with a pre-formed folded edge is pressed by the forming mold, the gripping portion of at least one first side wall of the forming mold grips the corresponding side surface of the substrate, and drives the side surface of the substrate to reciprocate relative to the mold body of the forming mold along the height direction of the mold body, so that the folded edges at both ends of the substrate are plugged into each other in the height direction of the mold body. Through this bag body forming system, a bag body with high supporting strength can be produced with a streamlined process, and the bag mouth strength of the bag body is enhanced by the integrated bag mouth folded edge.

[0066] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0067] To facilitate the explanation of the working principle of the bag forming system, the overall structure of the handbag will be explained below.

[0068] like Figure 1 As shown, the handbag 10 includes a bottom surface 101 and two side surfaces 102 located on both sides of the bottom surface 101. The opposite ends of the two side surfaces 102 are bent toward each other to form connecting surfaces 1021 respectively, and the edges of the two opposite connecting surfaces 1021 are fixedly connected to each other.

[0069] Optionally, the two side surfaces 102 of the handbag 10 are symmetrically arranged relative to the bottom surface 101, and the opposite side ends of the two side surfaces 102 are bent toward each other to form connecting surfaces 1021, wherein at least the outer edge portion of the folded edge 103 at the upper end of the connecting surface 1021 on one side is inserted between the upper end of the connecting surface 1021 on the other side and the folded edge 103.

[0070] As described above, in order to improve the bag opening strength of the handbag 10, it is possible to consider providing a bag opening fold 103 at the bag opening of the handbag 10. Furthermore, a bag opening fold extending around the bag opening of the handbag 10 can be formed at the bending position of the bag opening fold 103 of the handbag 10, and the bag opening of the handbag 10 is folded inward along the predetermined bag opening fold to form the bag opening fold 103.

[0071] The handbag 10 can be made of any one of non-woven fabrics, paper materials or paper-like materials, and the present invention does not make a sole limitation thereto.

[0072] Non-woven fabrics have high durability due to their fiber interlaced structure and can withstand a certain degree of stretching and tearing. For occasions that require high durability and environmental protection, non-woven fabric materials can be selected; while paper materials have good printing properties and can be easily printed with various texts, patterns and logos, and the cost is low. For occasions that focus on cost-effectiveness and printing performance, paper materials or paper-like materials can be selected to meet different usage requirements. It should be noted that the bag opening of the handbag 10 can also be provided with a handle 105 that is easy to hold. In fact, the two ends of the handle 105 are fixed between the bag opening fold 103 and the side 102, thereby enhancing the connection strength between the handle 105 and the bag body. Of course, regarding the connection method between the handle 105 and the bag body, those skilled in the art can design it according to actual conditions and specific needs, and this embodiment does not make specific restrictions on this. Of course, it is also possible to set a pair of bar holes at the bag opening of the handbag 10 without setting the handle 105, which can also be convenient for human hands to hold.

[0073] like Figure 2-Figure 4 As shown, an embodiment of the present invention discloses a bag body forming system 30 for a handbag, and the forming system includes a forming mold 310 that can move in a vertical direction, and a receiving platform 320 located below the forming mold 310. It should be noted that the receiving platform 320 can be a physical platform such as a track, a conveyor belt, and there is a space at a corresponding position below the forming mold 310 to avoid the downward pressure of the mold, or it can be a non-physical platform formed when the substrate 20 is transferred by adsorption, pushing, etc., and the present invention does not make specific limitations on this. More specifically, as Figure 3 As shown, the molding die 310 includes a die body 311, and two first side walls 312 corresponding to the two side surfaces 102 of the handbag 10 respectively; the lower end of the die body 311 is adapted to the shape of the bottom surface 101 of the handbag 10, and at least one of the two first side walls 312 of the molding die 310 is provided with a gripping portion 3121 adapted to the corresponding side surface 102 of the handbag 10, and can reciprocate relative to the die body 311 along the height direction of the die body 311. It should be noted that the molding die 310 can be provided with a gripping portion 3121 adapted to the corresponding side surface 102 of the handbag 10 on any one of the first side walls 312, or can be provided with a gripping portion 3121 adapted to the corresponding side surface 102 of the handbag 10 on both of the first side walls 312.

[0074] Among them, Figure 5 and Figure 6 As shown, the substrate 20 of the handbag 10 is formed in the length direction (such as Figure 6 The two ends of the substrate 20 are pre-folded inward to form a folded edge 103, and the substrate 20 is transferred to the receiving platform 320 and is located directly below the forming mold 310; the forming mold 310 presses down the substrate 20, and the substrate 20 is bent around the forming mold 310 to form a " "-shaped structure and surrounds the forming mold 310; the grasping portion 3121 of at least one first side wall 312 of the forming mold 310 grasps the corresponding side surface 202 of the substrate on one side, and drives the side surface 202 of the substrate on one side to move back and forth relative to the mold body 311 along the height direction of the mold body 311. Through such movement, the folded edges 103 at both ends of the substrate 20 are plugged together in the height direction of the mold body 311.

[0075] It should be noted that the two ends of the substrate 20 in the length direction are folded inward, which means that the two ends of the substrate 20 in the length direction are bent toward the surface of the side pressed by the molding die 310, so that the substrate 20 is bent by the molding die 310 into a " When the handbag 10 is in the shape of a "" shape, the folded edge 103 is located on the inner surface of the side surface 202 of the substrate. After the handbag 10 is formed, the folded edge 103 of the bag body is located inside the bag body, ensuring that the outer wall of the handbag 10 is relatively flat, thereby improving the aesthetics of the handbag 10.

[0076] Specifically, in this embodiment, before the substrate 20 is transferred to the receiving platform 320, the two ends of the substrate 20 in the length direction are pre-folded with folded edges 103. After the molding die 310 presses down the substrate 20, the substrate 20 will bend around the molding die 310 to form a " "-shaped structure and surrounds the forming mold 310, and the substrate side surfaces 202 on both sides are in the width direction (such as Figure 6 The outer parts of the substrate side 202 (as shown by the second arrow 60) need to be bent toward each other and the corresponding ends overlap and overlap each other to form a bag body. At this time, the folded edge 103 of the outer end of the substrate side 202 on one side is located inside the folded edge 103 of the outer end of the substrate side 202 on the other side. If the substrate side 202 on one side and the opposite sides of the substrate side 202 on the other side are directly overlapped with each other, the folded edges 103 of the substrate side 202 on both sides are only connected by the single-side surfaces that are in contact with each other, and the connection strength is the same as the connection strength without the folded edge 103, and the connection strength of the two sides 102 of the handbag 10 at the bag opening cannot be improved.

[0077] In the present embodiment, at least one of the two first side walls 312 of the forming mold 310 of the bag forming system 30 is provided with a gripping portion 3121 adapted to the side 102 of the corresponding handbag 10. After the substrate 20 surrounds the forming mold 310, the gripping portion 3121 of at least one first side wall 312 grips the corresponding side surface 202 of the substrate and drives the side surface 202 of the substrate to move relative to the mold body 311 along the height direction of the mold body 311, so that a height difference is formed between the two substrate sides 202, and the folded edges 103 of the two are staggered in the height direction. The folded edge 103 on the side surface 102 of the substrate will be offset from the bending position ( The folded edges 103 at both ends of the substrate 20 are connected to each other in the height direction of the mold body 311. At this time, the substrate side 202 on one side and the substrate side 202 on the other side are overlapped with each other on the opposite sides. On the premise of completing the bag body forming, the connection strength of the side 102 of the handbag 10 at the bag mouth is ensured.

[0078] The handbag 10 processed by the bag forming system 30 has a bottom surface 101 connected to the side surfaces 102 on both sides, which greatly enhances the connection strength between the bottom surface 101 and the side surfaces 102 of the handbag 10, and improves the support of the handbag 10, compared with the handbag 10 in the prior art in which the bottom ends of the side walls of the bag are bonded together to form the bottom of the bag. In addition, by folding the bag opening to form an integrated hem 103, the strength of the bag opening is improved, and the risk of tearing the bag opening when loading and unloading items is reduced.

[0079] Furthermore, the bag body forming system 30 of the handbag 10 can enable the folded edges 103 at both ends of the substrate 20 with the folded edges 103 pre-formed to be plugged into each other in the height direction of the mold body 311 during the forming process, thereby greatly simplifying the bag forming process of the handbag 10 with the folded edges 103. There is no need to additionally set up a bag-folding machine for folding the bag opening, thus saving the space occupied by the forming equipment of the handbag 10.

[0080] The working process of the bag forming system 30 is described in more detail below in conjunction with the substrate 20 .

[0081] like Figure 6 As shown, before the substrate 20 is transferred to the receiving platform 320, the substrate 20 is pre-processed. The substrate 20 needs to be cut into a predetermined shape. The length direction of the substrate 20 includes a first substrate side, a substrate middle portion 201, and a second substrate side (the first substrate side and the second substrate side are only used to distinguish the two substrate side portions 202). There are indentations between the first substrate side, the substrate middle portion 201, and the second substrate side to facilitate deformation by the molding die 310. The length direction of the substrate 20 is as shown in FIG. Figure 6 As shown by the first arrow 50, the width direction of the substrate 20 is as shown in FIG. Figure 6 As shown by the second arrow 60.

[0082] Furthermore, the substrate middle portion 201 is adapted to the shape of the bottom surface 101 of the handbag 10, and the first substrate side surface and the second substrate side surface are respectively adapted to the shapes of the two side walls of the handbag 10. Furthermore, each substrate side surface 202 is formed with substrate side surface extension portions 2021 on both sides of the substrate 20 in the width direction.

[0083] Furthermore, the free ends of the first substrate side surface and the second substrate side surface in the length direction of the substrate 20 will be squeezed by the corresponding folding devices and then bent inward to form the folded edges 103 .

[0084] Optionally, in one embodiment, after the free end of the substrate side 202 is bent to form a folded edge 103, two incisions 104 are opened at the bag opening in the middle of the width direction of the substrate 20, and the end of the handle 105 of the handbag 10 will be inserted between the folded edge 103 and the substrate side 202 through the incision 104 to achieve pre-fixation of the handle 105.

[0085] Furthermore, in one embodiment, bottom fold extensions 203 are respectively provided at both ends of the middle portion 201 of the substrate in the width direction. In the subsequent process, the bottom fold extensions 203 will be bent inwardly to connect with the first substrate side and the second substrate side to form a bottom bending portion 106 to connect the bottom surface 101 and the side surface 102 of the handbag 10, while improving the sealing of the bag body.

[0086] At this time, after the pretreatment of the substrate 20 is completed, Figure 2 and Figure 5 As shown, the substrate 20 is transferred to the receiving platform 320 and is located directly below the forming mold 310. The forming mold 310 moves in the vertical direction and presses down the middle part 201 of the substrate at the lower end. The substrate 20 is bent around the forming mold 310 to form a " "-shaped structure and surrounds the forming mold 310.

[0087] Among them, Figure 2 and Figure 3 As shown, the molding die 310 is driven by a mold driving mechanism 330 (for example, a mold driving motor), which is driven by a transmission belt to a connecting plate 331, and the connecting plate 331 is detachably connected to the upper end of the molding die 310. The mold driving mechanism 330 is arranged on a frame 40 of the bag molding device. The frame 40 serves as a supporting structure for the entire molding device and is formed by overlapping a plurality of frame beams. The frame 40 has at least three layers of supporting surfaces in the vertical direction. The top layer is used to support and connect the mold driving mechanism 330, the middle layer is used to support the substrate 20, and the bottom layer is used to support other components. Regarding the specific structure of the frame 40, this embodiment does not make any specific restrictions on this.

[0088] The frame 40 is provided with a guide rail extending in the height direction of the molding die 310, and the connecting plate 331 has a guided block adapted to and connected to the guide rail, and then the mold driving motor links the connecting plate 331 and the molding die 310 to move along the guide rail through a transmission belt to achieve the purpose of pressing down the substrate 20. Of course, the present invention does not specifically limit the specific structure of the mold driving mechanism 330.

[0089] Further, in order to ensure that when the molding die 310 presses down the substrate 20, the substrate 20 will not be staggered in the horizontal direction, optionally, in one embodiment, as Figure 2As shown, a bottom support member 340 is provided below the receiving platform 320 and is aligned with the lower end of the forming mold 310 in the vertical direction.

[0090] The bottom support 340 can move toward the forming mold 310 in the vertical direction to clamp the middle part 201 of the substrate together with the lower end of the forming mold 310. The bottom support 340 can be a tray or a pallet commonly used in the art. Of course, the bottom support 340 can move not only in the vertical direction but also in the horizontal direction to stagger with the forming mold 310, so as to leave a space for the handbag 10 to escape from the forming mold 310 when it is made. Regarding the structure for driving the bottom support 340 to move, those skilled in the art can design it according to actual conditions and specific needs, and this embodiment does not make any specific restrictions on this.

[0091] Of course, in another embodiment, a plurality of bottom suction cups may be provided at the bottom of the molding mold 310, and the molding mold 310 may adsorb the substrate 20 through the plurality of bottom suction cups. Regarding the specific design of the plurality of bottom suction cups, this embodiment does not specifically limit this.

[0092] When the bottom folded extensions 203 are respectively provided at both ends of the substrate middle portion 201 in the width direction, the bottom folded extensions 203 need to be bent toward the molding die 310 to form a bottom bent portion 106 opposite to the inner side of the substrate side surface 202 .

[0093] Optionally, in one embodiment, Figure 4 As shown, the bag forming system 30 also includes a pair of bottom insert components 350 arranged below the receiving platform 320 and located on both sides of the forming mold 310 in the width direction of the substrate 20, and the spacing between the pair of bottom insert components 350 in the width direction of the substrate 20 is the same as the length of the bottom surface 101 of the handbag 10.

[0094] And, if Figure 7 and Figure 8 As shown, the substrate 20 is bent around the forming mold 310 to form a " After the "-shaped structure is formed and surrounds the forming mold 310, a pair of bottom insert components 350 moves upward in the vertical direction, pushing the bottom folded extensions 203 on both sides of the substrate 20 corresponding to the lower end of the forming mold 310 in the width direction to bend upward relative to the lower end of the forming mold 310 to form a bottom bent portion 106. The bottom insert component 350 can be a bottom insert plate that is arranged in the vertical direction and extends perpendicular to the first side wall 312 of the forming mold 310, and is driven by a motor or a cylinder to move, and the present invention does not make specific limitations on this.

[0095] Furthermore, after the bottom folded extension portion 203 of the middle portion 201 of the substrate is bent to form the bottom bent portion 106, it is necessary to bend the opposite sides of the substrate side surface 202 in the width direction (i.e., the substrate side extension portion 2021) toward each other to form the connecting surface 1021 of the handbag 10 to surround the molding mold 310.

[0096] Optionally, in one embodiment, Figure 4 As shown, the bag forming system 30 further includes a side sealing assembly 360 , wherein the side sealing assembly 360 includes side insert components 361 disposed below the receiving platform 320 and located on both sides of the forming mold 310 in the length direction of the substrate 20 .

[0097] Specifically, two pairs of side insert components 361 corresponding to each other are arranged on both sides of the molding die 310 in the length direction of the substrate 20, and the distance between the two pairs of side insert components 361 is the same as the length of the bottom surface 101 of the handbag 10, or slightly larger than the length of the bottom surface 101 of the handbag 10. The side insert components 361 include side insert plates extending in the vertical direction and perpendicular to the first side wall 312 of the molding die 310. The side insert plates can be driven by the side insert driving member to move along the length direction of the substrate 20.

[0098] Among them, Fig. 9 and Fig.10 As shown, the side insert is driven to move along the length direction of the substrate 20 toward the forming mold 310, pushing the substrate side surfaces 202 on both sides to bend inward at the outer ends in the width direction (i.e., the substrate side extensions 2021) at the same time, and the corresponding ends overlap each other. It should be noted that if the substrate 20 is paper material, the substrate side extensions 2021 will be sprayed with glue in advance. In order to prevent the two opposite substrate side extensions 2021 from being bonded in advance when bending, compared with the side insert directly making the substrate side 202 surround the forming mold 310, the stroke of the side insert is slightly shorter, and the substrate side extensions 2021 on both sides will not be completely bent 90 degrees, and there will be a gap between the substrate side extensions 2021 on both sides.

[0099] At this time, the folded edge 103 of the substrate side extension portion 2021 on one side is located inside the folded edge 103 of the substrate side extension portion 2021 on the other side (see Fig.10 ), the first side wall 312 of the molding die 310 needs to move so that the folded edge 103 of the substrate side surface 202 on one side and the bag opening of the substrate side surface 202 on the other side are plugged into each other.

[0100] Optionally, in one embodiment, a side wall guide assembly 314 extending in the height direction is disposed between one of the two first side walls 312 of the molding mold 310 and the mold body 311 , and the other is fixedly disposed on the side surface 102 of the mold body 311 .

[0101] The gripping portion 3121 of the first side wall 312 grips the corresponding substrate side surface 202 and drives the substrate side surface 202 to move downward relative to the mold body 311 until the upper end of the folded edge 103 at the end of the substrate side surface 202 on one side is lower than the lower end of the folded edge 103 at the end of the substrate side surface 202 on the other side (see Fig.11 and Fig.12 ), and a first side wall 312 drives one side of the substrate side 202 to move upward until the folded edge 103 at the end of the substrate side 202 on one side is inserted into the folded edge 103 at the end of the substrate side 202 on the other side, and the upper ends of the folded edges 103 at the ends of the substrate side 202 on both sides are flush (see Fig.14 and Fig.15 ).

[0102] It should be noted that when the grabbing portion 3121 of the first side wall 312 grabs the corresponding substrate side surface 202 and drives the substrate side surface 202 to move, the substrate side surface extending portion 2021 is connected to the corresponding substrate side surface 202 and will be moved together with the substrate side surface 202 .

[0103] In fact, in this embodiment, the folded edge 103 of the substrate side 202 on one side is plugged into the pocket of the substrate side 202 on the other side, which means that the folded edge 103 of at least the edge of the substrate side extension part 2021 on both sides of the width direction of the substrate 20 on one side of the substrate 20 is plugged into the folded edge 103 on the corresponding substrate side extension part 2021 on the other side of the substrate 202.

[0104] In another alternative embodiment, a gripping portion 3121 of a first side wall 312 grips the corresponding substrate side surface 202 on one side, and drives the substrate side surface 202 on one side to move upward relative to the mold body 311 until the lower end of the folded edge 103 at the end of the substrate side surface 202 on one side is higher than the upper end of the folded edge 103 at the end of the substrate side surface 202 on the other side, and a first side wall 312 drives the substrate side surface 202 on one side to move downward at an angle until the folded edge 103 at the end of the substrate side surface 202 on the other side is inserted into the folded edge 103 at the end of the substrate side surface 202 on one side, and the upper ends of the folded edges 103 at the ends of the substrate side surfaces 202 on both sides are flush.

[0105] During the molding process, the gripping portion 3121 of the first side wall 312 grips the corresponding substrate side surface 202 and drives the substrate side surface 202 to move relative to the mold body 311, so that the folded edge 103 of the substrate side surface 202 on one side is completely staggered with the folded edge 103 of the substrate side surface 202 on the other side in the height direction (see Fig.13), for example, the upper end of the folded edge 103 at the end of one side of the substrate side 202 is lower than the lower end of the folded edge 103 at the end of the other side of the substrate side 202, or the lower end of the folded edge 103 at the end of one side of the substrate side 202 is higher than the upper end of the folded edge 103 at the end of the other side of the substrate side 202. Then, when the grasping portion 3121 of the first side wall 312 grasps the corresponding side of the substrate 202 and drives the side of the substrate 202 to return relative to the mold body 311, the folded edge 103 of the substrate side 202 on the lower side will be inserted between the substrate side 202 on the higher side and the corresponding folded edge 103 (see Fig.16 ), the folded edges 103 at both ends of the substrate 20 can be plugged into each other in the height direction of the mold body 311.

[0106] Therefore, a side wall guide assembly 314 extending in the height direction is arranged between a first side wall 312 and the mold body 311, and the other is fixedly arranged on the side 102 of the mold body 311, so that when the molding mold 310 realizes the mutual insertion of the folding edges 103 at both ends of the substrate 20, the required actions are simpler, and there are fewer parts in the molding mold 310, and the possibility of failure is small, thereby improving the service life and reliability of the molding mold 310.

[0107] In addition, when the first side wall 312 drives one side surface 202 to return, it moves obliquely relative to the height direction, making it easier for the folded edge 103 of one side surface 202 of the substrate to be plugged into the folded edge 103 of the other side surface 202 of the substrate.

[0108] It should be noted that when a first side wall 312 on the molding mold 310 moves in conjunction with the corresponding substrate side 202, it may affect the substrate side 202 on the other side, so that the middle portion 201 of the substrate can be tightly fitted with the bottom wall of the molding mold 310 (for example, clamped by the bottom support 340, or sucked by the suction cup provided at the bottom end of the molding mold 310, etc.), preventing the deformation of the substrate side 202 on one side from being transmitted to the substrate side 202 on the other side, thereby avoiding the misalignment of the substrate side 202 on the other side. Of course, a grasping portion 3121 may also be provided on the first side wall 312 on the other side to grasp the substrate side 202 on the other side, and the substrate side 202 on the other side may also be pressed against the corresponding first side wall 312 by an external structure such as a bag stripping belt. The present invention does not make any specific limitation on this.

[0109] In another embodiment, a side wall guide assembly 314 extending in the height direction is disposed between each of the two first side walls 312 of the molding die 310 and the die body 311. The gripping portion 3121 of one first side wall 312 grips the corresponding substrate side 202 and drives the substrate side 202 to move downward relative to the die body 311, and the gripping portion 3121 of the other first side wall 312 grips the corresponding substrate side 202 and drives the substrate side 202 to move upward relative to the die body 311 until the upper end of the folded edge 103 at the end of the substrate side 202 on one side is lower than the lower end of the folded edge 103 at the end of the substrate side 202 on the other side.

[0110] Furthermore, one first side wall 312 drives one side of the substrate side 202 to move upwardly and tilted, and the other first side wall 312 drives one side of the substrate side 202 to move downwardly and tilted, until the folded edge 103 at the end of the other side of the substrate side 202 is inserted into the folded edge 103 at the end of one side of the substrate side 202, and the upper ends of the folded edges 103 at the ends of the two sides of the substrate side 202 are flush.

[0111] During the molding process, the two first side walls 312 respectively drive the corresponding substrate side surfaces 202 to move in opposite directions in the height direction, so that the folded edges 103 on the substrate side surfaces 202 on both sides are completely staggered in the height direction. For example, one first side wall 312 drives one side of the substrate side surface 202 to move downward relative to the mold body 311, and the other first side wall 312 drives the other side of the substrate side surface 202 to move upward relative to the mold body 311, until the upper end of the folded edge 103 at the end of one side of the substrate side surface 202 is lower than the lower end of the folded edge 103 at the end of the other side of the substrate side surface 202. When the two first side walls 312 drive the corresponding substrate side surfaces 202 to return, the folded edge 103 of the substrate side surface 202 on the lower side will be inserted between the substrate side surface 202 and the folded edge 103 on the upper side. More specifically, in the process of the folded edges 103 on the two sides of the substrate side 202 returning to their original positions after being offset in the height direction, at least the edge portion of the folded edge 103 at the end of the substrate side 202 on one side close to the molding mold 310 will be inserted into the folded edge at the end of the substrate side 202 on the other side away from the molding mold 310, so as to form a uniform and smooth bag opening folded edge 103 along the bag opening of the finished handbag 10.

[0112] Therefore, side wall guide assemblies 314 extending in the height direction are arranged between the two first side walls 312 and the mold body 311. Since the substrate side surfaces 202 on both sides will move oppositely in the height direction under the linkage of the corresponding first side walls 312, compared with the structure in which the side wall guide assembly 314 is arranged between one first side wall 312 and the mold body 311, the single first side wall 312 has a shorter stroke in the height direction, the deformation generated on one side of the substrate 20 is smaller, the probability of torsional deformation of the substrate 20 is lower, the substrate 20 is not easily damaged, and the production efficiency and qualified product rate are improved.

[0113] It should be noted that in order to improve the success rate of the folded edges 103 at both ends of the substrate 20 being plugged into each other in the height direction of the mold body 311, the folded edge 103 of the downwardly moved substrate side 202 can be pre-bonded to the corresponding substrate side 202. The folded edge 103 will not open due to the elastic restoring force, making it easier to insert between the substrate side 202 and the folded edge 103 on the upper side.

[0114] After the folded edges 103 at both ends of the substrate 20 are connected to each other in the height direction of the mold body 311 by the action of the first side wall 312 on the molding mold 310, it is necessary to overlap the opposite sides of the two side surfaces 102. For example, when the substrate 20 is paper, the outer ends of the substrate side surfaces 202 in the width direction are pre-spread with glue to bond the overlapping parts of the outer ends of the substrate side surfaces 202 on both sides; for another example, when the substrate 20 is non-woven fabric, it is necessary to press the overlapping parts of the outer ends of the substrate side surfaces 202 on both sides by an ultrasonic iron or a heat sealing component to fix the bag body.

[0115] Alternatively, if Figure 4 As shown, in this embodiment, taking the substrate 20 as paper as an example, the side sealing assembly 360 also includes a clamping component 362 disposed below the receiving platform 320 and located on both sides of the forming mold 310 in the width direction of the substrate 20. Among them, when the folded edges 103 at both ends of the substrate 20 are plugged into each other in the height direction of the mold body 311, and the outer ends of the substrate side surfaces 202 on both sides in the width direction are simultaneously bent inward and the corresponding ends overlap each other, the clamping component 362 moves toward the forming mold 310, so that the overlapping parts of the corresponding ends of the substrate side surfaces 202 on both sides are overlapped together, and the overlapping parts of the corresponding ends are bonded by glue, and the lower sides of the corresponding ends of the substrate side surfaces 202 on both sides are fixedly bonded to the bottom bending portion 106 that has been folded inward in advance (see Figure 1 ).

[0116] It should be noted that before the clamping component 362 moves toward the molding mold 310, the side insert plate can also be further moved along the length direction of the substrate 20 toward the molding mold 310, pushing the side surfaces 202 of the substrate on both sides to bend further inward at the outer ends in the width direction until close to ninety degrees, thereby making it easier for the clamping component 362 to clamp the overlapping parts of the corresponding ends of the side surfaces 202 of the substrate on both sides.

[0117] In order to more clearly understand that the molding die 310 enables the folded edges 103 on both sides of the substrate 20 to be plugged into each other through the action of the first side wall 312 , the specific structure of the molding die 310 is described below.

[0118] like Figure 17-Figure 19 As shown, in this embodiment, the molding mold 310 includes a mold body 311, a pair of first side walls 312, and a pair of second side walls 313, wherein the pair of first side walls 312 are arranged on opposite sides of the mold body 311 in the first direction, respectively corresponding to the two side surfaces 102 of the handbag 10, and the pair of second side walls 313 are arranged on opposite sides of the mold body 311 in the second direction, respectively arranged between the opposite ends of each side of the pair of first side walls 312, and when viewed along the height direction of the mold body 311, the outline surrounded by the pair of first side walls 312 and the pair of second side walls 313 is adapted to the outer shape of the cross-section of the handbag 10.

[0119] It should be noted that, in this embodiment, the first direction is parallel to the length direction of the substrate 20 forming the handbag 10 , and the second direction is parallel to the width direction of the substrate 20 forming the handbag 10 .

[0120] A side wall guide assembly 314 is provided between at least one first side wall 312 and the mold body 311, and at least one first side wall 312 can reciprocate along the height direction of the mold body 311 relative to the mold body 311 along the side wall guide assembly 314, and is provided with a gripping portion 3121 adapted to the side surface 102 of the corresponding handbag 10. It should be noted that the molding mold 310 can be provided with a side wall guide assembly 314 between any one of the two first side walls 312 and the mold body 311, or between both of the two first side walls 312 and the mold body 311.

[0121] Optionally, in one embodiment, the mold body 311 includes a body support 3110 , and a pair of first side walls 312 and a pair of second side walls 313 are disposed around the body support 3110 .

[0122] Among them, a pair of second side walls 313 are fixed to opposite ends of the body bracket 3110 in the second direction, and the pair of second side walls 313 can be connected to the body bracket 3110 through a connecting horizontal plate, and the upper end of the body bracket 3110 extends out of the top of the first side wall 312 and the second side wall 313 and is detachably connected to the mold driving mechanism 330. Specifically, the upper end of the body bracket 3110 and the mold driving mechanism 330 can be connected by a detachable method commonly used in the art, such as a snap connection or a screw connection.

[0123] The side wall guide assembly 314 between the first side wall 312 and the mold body 311 is described in detail below.

[0124] The side wall guide assembly 314 includes a side wall driving member 3141 and a guiding member. The side wall driving member 3141 is fixed on the mold body 311, located on the inner side of the corresponding first side wall 312 and is transmission-connected to the inner wall of the first side wall 312. The guiding member includes a guiding member 3142 which is extended along the height direction of the mold body 311 and is arranged on the mold body 311, and a guided member 3123 which is arranged on the inner wall of the corresponding first side wall 312. The guided member 3123 is slidingly adapted to be connected to the guiding member 3142.

[0125] Moreover, in a cross section taken along the height direction of the mold body 311, the lower end of the guide member 3142 is closer to the corresponding first side wall 312 in the first direction than the upper end. Therefore, the first side wall 312 will be driven by the side wall driving member 3141 to slide along the guide member 3142 at an angle relative to the vertical direction. Taking the downward movement of the first side wall 312 along the vertical direction as an example, the first side wall 312 will move at an angle toward the lower side of the mold body 311, thereby better separating the partially overlapping folded edges 103 on the side surfaces 202 of the substrate on both sides. At the same time, there is a gap between the first side wall 312 and the pair of second side walls 313, so as to prevent the first side wall 312 from colliding with the edges of the pair of second side walls 313 when moving along the guide member 3142.

[0126] Specifically, in one embodiment, the side wall driving member 3141 is a driving cylinder, which is fixed to the inner wall of a corresponding second side wall 313 , and the output end of the driving cylinder is connected to the inner wall of a corresponding first side wall 312 .

[0127] The guide member 3142 is a guide rail located in the middle of the main body bracket 3110 in the second direction and extending along the height direction of the main body bracket 3110. The guided member 3123 is a slider located on the inner wall of the corresponding first side wall 312 in the second direction and adapted to the guide rail.

[0128] Specifically, Fig. 20As shown, in this embodiment, two driving cylinders are arranged between the first side wall 312 and the main body bracket 3110, and the two driving cylinders are symmetrically arranged on both sides of the main body bracket 3110. Two pairs of guide members 3142 are symmetrically arranged on both sides of the main body bracket 3110, and the first side wall 312 forms guided members 3123 adapted and connected thereto at corresponding positions.

[0129] In this embodiment, the gripping portion 3121 provided on the first side wall 312 is used to grip the corresponding substrate side 202 so as to maintain a predetermined relative position with the corresponding first side wall 312. When one first side wall 312 moves under the action of the side wall guide assembly 314, the gripping portion 3121 can grip the corresponding substrate side 202 and move together with the first side wall 312, while the other first side wall 312 does not move. The gripping portion 3121 provided on the other first side wall 312 can ensure that the corresponding substrate side 202 is not pulled and displaced.

[0130] Optionally, in one embodiment, the gripping portion 3121 is a plurality of suction cups 3122 evenly distributed on the outer wall of the first side wall 312, and the plurality of suction cups 3122 are connected to an external air extraction device through a pipeline. It should be noted that the number of the suction cups 3122 can be two, three, four or other numbers, and the present invention does not make a sole limitation on this.

[0131] Each suction cup 3122 is funnel-shaped, with its opening facing the side of the first side wall 312 away from the mold body 311 , and the outer edge of the suction cup 3122 is flush with the first side wall 312 .

[0132] In addition, the suction cup 3122 can extend out of the outside of the first side wall 312 to grab the corresponding side surface 202 of the substrate. Specifically, the molding mold 310 moves in the vertical direction and presses down the middle part 201 of the substrate at the lower end. During the downward movement of the middle part 201 of the substrate, the substrate side surfaces 202 on both sides of the length direction of the substrate 20 will bend toward the side wall of the molding mold 310 under the action of inertia or the action of the receiving platform 320. At this time, the suction cup 3122 on the first side wall 312 extends out of the outside of the first side wall 312 and adheres to the corresponding side surface 202 of the substrate. Then, during the return process, the side surface 202 of the substrate is driven to approach and adhere to the corresponding first side wall 312.

[0133] In another alternative embodiment, the grasping portion 3121 is a clamping jaw arranged at the upper edge of the first side wall 312, and the clamping jaw can move along the length direction of the substrate 20 to clamp the substrate side 202 corresponding to the first side wall 312, so that the substrate side 202 is attached to the corresponding first side wall 312.

[0134] Of course, a pushing component that can move toward the molding die 310 can also be set on the side of the molding die 310 in the length direction of the substrate 20. After the bottom inserting component 350 and the side inserting component 361 successively complete the action on the substrate 20, they are pushed toward the corresponding substrate side 202 through the pushing plate, so that the substrate side 202 is attached to the corresponding first side wall 312. The pushing component can be set as a plate-like structure parallel to the first side wall 312, and this embodiment does not make a sole limitation to this.

[0135] Further, if Fig.17 and Fig.18 As shown, in order to better connect the folded edge 103 of the substrate side 202 on one side with the folded edge 103 of the substrate side 202 on the other side, optionally, in one embodiment, an air suction hole 3131 is formed on the second side wall 313 and passes through the second side wall 313, and the air suction hole 3131 is connected to an external exhaust device through a pipeline arranged in the mold body 311.

[0136] When viewed along the second direction, the air suction hole 3131 is located on the second side wall 313 in the area of ​​the folded edge 103 on the inserted side of the folded edge 103 of the handbag 10, ensuring that the air suction hole 3131 can act on the folded edge 103, thereby adsorbing the inward folded edge 103 to form an opening between it and the corresponding substrate side 202, so as to facilitate the insertion of the lower side 102 and the folded edge 103.

[0137] In another alternative embodiment, a blowing hole penetrating through the second side wall 313 is formed on the second side wall 313 , and the blowing hole is connected to an external blowing device through a pipeline disposed in the mold body 311 .

[0138] Moreover, when viewed along the second direction, the blowing hole is located on the second side wall 313 in the area below the folded edge 103 on the inserted side of the folded edge 103 of the handbag 10, and the blowing hole blows air toward the substrate side 202. Under the blocking effect of the substrate side 202, the airflow is dispersed in the vertical direction, and part of the gas will enter between the substrate side 202 and the folded edge 103, thereby stretching the folded edge 103, which is also convenient for the insertion of the lower substrate side 202 and the folded edge 103.

[0139] Optionally, in one embodiment, Fig.18 and Fig.19As shown, a first side wall 312 of the molding die 310 is in a plate-like structure, and a side wall guide assembly 314 is arranged between the first side wall 312 and the mold body 311. The first side wall 312 on the other side is composed of a pair of second side walls 313 in the second direction. When the first side wall 312 on one side is linked by the side wall guide assembly 314 and connected to the corresponding substrate side 202 to displace, the substrate side 202 on the other side is pressed against the corresponding second side wall 313 by the bag-removing component, wherein the bag-removing component is a bag-removing belt integrated on the side plug plate. This structure allows the side wall guide assembly 314 arranged inside the molding die 310 to be in an open state, which is convenient for inspection and maintenance.

[0140] Of course, the embodiment of the present invention does not make any sole limitation on the specific structure of the molding die 310 .

[0141] Furthermore, in the face of diverse size and specification demands in the market, traditional molds are bulky, heavy and have a fixed structure, which leads to the need to frequently replace molds when switching to produce three-dimensional bags of different sizes. This not only increases production costs, but also seriously affects production efficiency and flexibility due to the complexity and time-consuming nature of mold replacement.

[0142] To this end, in one embodiment, the bag forming system 30 further includes a mold replacement assembly (not shown in the figure), which includes a plurality of mounting seats that can load a plurality of forming molds 310, and a guide component located between the plurality of mounting seats and the mold driving mechanism 330, and a mold disassembly component that can move along the guide component is provided on the guide component. The number of the mounting seats can be two, three, four or other numbers, which is not specifically limited in this embodiment.

[0143] The mold disassembly component can move along the guide component between the mold driving mechanism 330 and any mounting seat, and can remove the molding mold 310 from the end of the mold driving mechanism 330 and place it on an empty mounting seat, or extract the molding mold 310 from the mounting seat and install it on the end of the mold driving mechanism 330.

[0144] This bag forming system 30 can use the mold disassembly and assembly parts of the mold replacement assembly to replace multiple molding molds 310 set on the mounting seat and the molding molds 310 on the mold driving mechanism 330. Compared with the prior art, installing or removing the stripping plate on the molding mold 310, or manually disassembling the molding mold 310, the difficulty of mold changing is reduced, time and labor are saved, and thus it has the advantage of high mold changing efficiency.

[0145] Optionally, in one embodiment, the guide component includes a first guide extending along a first direction between the mold driving mechanism 330 and a plurality of mounting seats, and a second guide extending along a second direction through an opening of each bearing seat; wherein the first direction and the second direction are orthogonal to each other, and the first guide is disposed on the second guide and can move relative to the second guide along the second direction, and the mold disassembly member can be movably disposed on the first guide along the first direction. It should be noted that, in this embodiment, the first direction is the width direction of the substrate 20, and the second direction is the length direction of the substrate 20. Of course, the first direction can also be the length direction of the substrate 20, and the second direction can be the width direction of the substrate 20. This embodiment does not specifically limit this.

[0146] Furthermore, the guide member further includes a first driving member and a second driving member, wherein the first driving member drives the mold disassembly member to move along a first direction, and the second driving member drives the first guide member to move along a second direction. It should be noted that the first guide member and the second guide member can be slide grooves and slide rails commonly used in the art.

[0147] During the mold changing process, the mold disassembling and assembling parts move along the guide assembly between the mold driving mechanism 330 and the multiple supporting seats. For example, during the mold unloading process, the first driving member drives the mold disassembling and assembling parts to move the molding mold 310 removed from the mold driving mechanism 330 along the first guiding member to one side of the multiple mounting seats. Further, the second driving member drives the first guiding member to move along the second guiding member, and makes the mold disassembling and assembling parts on the first guiding member correspond to the supporting seat in the empty state, and the disassembled molding mold 310 is loaded by the supporting seat in the empty state. During the mold loading process, the second driving member drives the first guiding member along the second guiding member to move the molding mold 310 removed from the mold driving mechanism 330. The second guide member moves, and makes the mold disassembly and assembly member on the first guide member correspond to the supporting seat for loading the molding mold 310 to be replaced, the mold disassembly and assembly member picks up the molding mold 310 to be replaced, and then the second driving member drives the first guide member to move along the second guide member, and makes one end of the first guide member correspond to the mold driving mechanism 330, the first driving member drives the mold disassembly and assembly member to transport the molding mold 310 to be replaced along the first guide member to the mold connection position of the mold driving mechanism 330, and the molding mold 310 to be replaced is connected by the connecting plate 331 of the mold driving mechanism 330 to complete the mold change.

[0148] Of course, regarding the specific structure of the mold replacement assembly, those skilled in the art can design it according to actual conditions and specific needs, and this embodiment does not make any specific limitations on this.

[0149] Using the bag body forming system 30, the embodiment of the present invention also discloses a bag body forming method for a handbag, such as Fig. 20 As shown, the bag forming method comprises the following steps:

[0150] S1: die-cutting the raw material to form a substrate of the handbag 10, the substrate sequentially including a first substrate side, a substrate middle portion 201, and a second substrate side in the length direction, wherein the substrate middle portion 201 is adapted in shape to the bottom surface 101 of the handbag 10, and the first substrate side and the second substrate side are adapted in shape to the two side walls of the handbag 10, respectively, and bottom folding extension portions 203 are respectively provided at both ends of the substrate middle portion 201 in the width direction;

[0151] The raw material may be paper, paper-like material or non-woven fabric, etc.

[0152] S2: bending the free ends of the first substrate side surface and the second substrate side surface in the length direction inwards respectively to form a folded edge 103;

[0153] S3: The substrate with the folded edge 103 is transferred to the receiving platform 320, which is located directly below the forming mold 310. The forming mold 310 moves in the vertical direction, and the lower end presses down the middle part 201 of the substrate. The substrate is bent around the forming mold 310 to form a " "-shaped structure and surrounds the forming mold 310;

[0154] S4: The grabbing portion 3121 of at least one first side wall 312 of the molding mold 310 grabs the corresponding side surface 202 of the substrate, and drives the side surface 202 of the substrate to reciprocate along the height direction of the mold body 311 relative to the mold body 311 of the molding mold 310, so that the folded edges 103 at both ends of the substrate are plugged into each other in the height direction of the mold body 311.

[0155] Further, step S4 includes:

[0156] The gripping portion 3121 of one first side wall 312 grips the corresponding substrate side surface 202 on one side, and drives the substrate side surface 202 on one side to move downward relative to the mold body 311 until the upper end of the folded edge 103 at the end of the substrate side surface 202 on one side is lower than the lower end of the folded edge 103 at the end of the substrate side surface 202 on the other side, and the first side wall 312 drives the substrate side surface 202 on one side to move upward in an inclined manner until the folded edge 103 at the end of the substrate side surface 202 on one side is inserted into the folded edge 103 at the end of the substrate side surface 202 on the other side, and the upper ends of the folded edges 103 at the ends of the substrate side surfaces 202 on both sides are flush;

[0157] Alternatively, a gripping portion 3121 of a first side wall 312 grips the corresponding side surface 202 of the substrate on one side, and drives the side surface 202 of the substrate on one side to move upward relative to the mold body 311 until the lower end of the folded edge 103 at the end of the side surface 202 of the substrate on one side is higher than the upper end of the folded edge 103 at the end of the side surface 202 of the substrate on the other side, and a first side wall 312 drives the side surface 202 of the substrate on one side to move downward at an angle until the folded edge 103 at the end of the side surface 202 of the substrate on the other side is inserted into the folded edge 103 at the end of the side surface 202 of the substrate on one side, and the upper ends of the folded edges 103 at the ends of the side surfaces 202 of the substrate on both sides are flush.

[0158] Alternatively, the gripping portion 3121 of one first side wall 312 grips the corresponding side surface 202 of the substrate and drives the side surface 202 of the substrate to move downward relative to the mold body 311, and the gripping portion 3121 of the other first side wall 312 grips the corresponding side surface 202 of the substrate and drives the side surface 202 of the substrate to move upward relative to the mold body 311, until the upper end of the folded edge 103 at the end of the side surface 202 of the substrate is lower than the lower end of the folded edge 103 at the end of the other side surface 202.

[0159] Furthermore, one first side wall 312 drives one side of the substrate side 202 to move upwardly and tilted, and the other first side wall 312 drives one side of the substrate side 202 to move downwardly and tilted, until the folded edge 103 at the end of the other side of the substrate side 202 is inserted into the folded edge 103 at the end of one side of the substrate side 202, and the upper ends of the folded edges 103 at the ends of the two sides of the substrate side 202 are flush.

[0160] The bag body forming method of the handbag 10 is such that before the substrate is formed, the free ends of the first substrate side surface and the second substrate side surface in the length direction are bent inward to form the folded edges 103. Furthermore, after the substrate is transferred to the receiving platform 320 and pressed by the forming mold 310, the gripping portion 3121 of at least one first side wall 312 of the forming mold 310 grips the corresponding side surface 202 of the substrate, and drives the side surface 202 of the substrate to reciprocate relative to the mold body 311 of the forming mold 310 along the height direction of the mold body 311, so that the folded edges 103 at both ends of the substrate are plugged into each other in the height direction of the mold body 311. Thus, the bag body forming process of the handbag 10 is completed.

[0161] The handbag 10 made by this bag forming method has a bottom surface 101 connected to the side surfaces 102 on both sides, which greatly enhances the connection strength between the bottom surface 101 and the side surfaces 102 of the handbag 10, thereby improving the support of the handbag 10. In addition, the bag opening forms an integrated folding edge 103, which improves the strength of the bag opening and reduces the risk of tearing the bag opening when loading and unloading items.

[0162] In addition, compared to the prior art, in which the handbag 10 is subjected to secondary processing by other equipment after the bag body is formed, and then the edge of the bag mouth of the handbag 10 is folded, this bag body forming method, when producing a handbag 10 with a folded edge 103, the folded edge 103 has been processed and formed before the substrate 20 is pressed down by the forming mold 310, and there is no need to perform secondary processing on the produced bag body, which greatly improves the production efficiency of the handbag 10.

[0163] Optionally, in one embodiment, before step S3, the following steps are also included:

[0164] S3 - 1 : Select a mold model according to the bag body size of the handbag 10 to be formed, and connect the selected model of the forming mold 310 to the mold driving mechanism 330 .

[0165] It should be noted that different models of molding molds 310 differ in at least one of the length, width and thickness dimensions. Of course, the shape of the molding mold 310 is related to the specific bag type produced. Technical personnel in this field can design it according to actual conditions and specific needs. This embodiment does not make specific limitations on this.

[0166] However, the connection structure between each molding die 310 and the die driving mechanism 330 is the same, ensuring that each molding die 310 can be connected to the die driving mechanism 330 .

[0167] During use, the user matches the model of the molding die 310 on the die driving mechanism 330 according to the bag type to be produced.

[0168] If they match, then proceed to subsequent production;

[0169] If there is no match, the bag type to be produced is further matched with the model of the forming mold 310 on multiple mounting seats, and the forming mold 310 installed on one of the mounting seats and matching the bag type to be produced is determined as the mold to be replaced, and the forming mold 310 to be replaced on the mounting seat and the existing forming mold 310 on the mold driving mechanism 330 are replaced through the mold disassembly and assembly parts of the mold replacement assembly.

[0170] Optionally, in one embodiment, before step S4, the following steps are further included:

[0171] The bottom folded extensions 203 at both ends of the middle portion 201 of the substrate are bent by the bottom inserting member 350 to form the bottom folded portion 106 of the handbag 10 .

[0172] Optionally, in one embodiment, after step S4, the following steps are further included:

[0173] The side sealing assembly 360 is used to push the first substrate side surface and the second substrate side surface to bend inward at the outer ends in the width direction (i.e., the substrate side extension portion 2021) at the same time, and the corresponding ends overlap and overlap each other. It should be noted that when the first substrate side surface and the second substrate side surface are bent inward at the outer ends in the width direction at the same time and the corresponding ends overlap each other, they can be bonded by pre-sprayed glue, or they can also be heat-sealed by a heat-sealing component, so that the first substrate side surface and the second substrate side surface are connected to each other. Among them, the first substrate side surface and the second substrate side surface can be sprayed with glue at the outer ends in the width direction before the substrate 20 is transferred to the receiving platform 320.

[0174] It should be noted that, in addition to the implementation methods of the present invention described in the above-mentioned specific embodiments, those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention is introduced in conjunction with the preferred embodiment, this does not mean that the features of this invention are limited to this implementation method. On the contrary, the purpose of introducing the invention in conjunction with the implementation method is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, the above description contains many specific details, and the present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0175] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0176] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0177] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0178] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0179] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above is a further detailed description of the present invention in conjunction with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A bag body forming system for a handbag, the handbag comprising a bottom surface and two side surfaces located on both sides of the bottom surface, wherein opposite sides of the two side surfaces overlap each other; characterized in that: The molding system comprises a molding die movable in a vertical direction and a receiving platform located below the molding die; and, The molding die comprises a die body and two first side walls respectively corresponding to the two side surfaces of the handbag; the lower end of the die body is adapted to the shape of the bottom surface of the handbag, and at least one of the two first side walls of the molding die is provided with a gripping portion adapted to the corresponding side surface of the handbag, and can reciprocate relative to the die body along the height direction of the die body; wherein, The base material forming the handbag is pre-folded inward at both ends in the length direction, and is transferred to the receiving platform and located directly below the forming mold; the forming mold presses down the base material, and the base material is bent around the forming mold to form a " "-shaped structure and surrounds the forming mold; the grasping portion of at least one of the first side walls of the forming mold grasps the corresponding side surface of the substrate, and drives the side surface of the substrate to reciprocate relative to the mold body along the height direction of the mold body, so that the folded edges at both ends of the substrate are plugged into each other in the height direction of the mold body.

2. The bag body forming system of a handbag as claimed in claim 1, characterized in that: in, A side wall guide assembly extending in the height direction is arranged between one of the two first side walls of the molding die and the die body, and the other is fixedly arranged on the side of the die body; wherein, The gripping portion of the first side wall grips the corresponding side surface of the substrate, and drives the side surface of the substrate to move downward relative to the mold body until the upper end of the folded edge at the end of the side surface of the substrate on one side is lower than the lower end of the folded edge at the end of the side surface of the substrate on the other side, and the first side wall drives the side surface of the substrate to move upwardly until the folded edge at the end of the side surface of the substrate on one side is inserted into the folded edge at the end of the side surface of the substrate on the other side, and the upper ends of the folded edges at the ends of the side surfaces of the substrate on both sides are flush; or The grasping portion of the first side wall grasps the corresponding side surface of the substrate, and drives the side surface of the substrate to move upward relative to the mold body until the lower end of the folded edge at the end of the side surface of the substrate on one side is higher than the upper end of the folded edge at the end of the side surface of the substrate on the other side, and the first side wall drives the side surface of the substrate to move downward at an angle until the folded edge at the end of the side surface of the substrate on the other side is inserted into the folded edge at the end of the side surface of the substrate on one side, and the upper ends of the folded edges at the end of the side surfaces of the substrate on both sides are flush.

3. The bag body forming system of a handbag as claimed in claim 1, characterized in that: in, A side wall guide assembly extending in the height direction is provided between each of the two first side walls of the molding die and the die body; wherein, The grabbing portion of one of the first side walls grabs the corresponding side surface of the substrate and drives the side surface of the substrate to move downward relative to the mold body, and the grabbing portion of the other first side wall grabs the corresponding side surface of the substrate and drives the side surface of the substrate to move upward relative to the mold body, until the upper end of the folded edge at the end of the side surface of the substrate on one side is lower than the lower end of the folded edge at the end of the side surface of the substrate on the other side; further The first side wall drives the side surface of the substrate on one side to move upwardly and tilted, and the other first side wall drives the side surface of the substrate on one side to move downwardly and tilted, until the folded edge at the end of the side surface of the substrate on the other side is inserted into the folded edge at the end of the side surface of the substrate on one side, and the upper ends of the folded edges at the end of the side surfaces of the substrates on both sides are flush.

4. The bag body forming system of a handbag as claimed in claim 1, characterized in that: in, The bag forming system also includes a mold driving mechanism disposed on a frame, an end of the mold driving mechanism being detachably connected to the upper end of the mold body, and the mold driving mechanism can link the forming mold to move in a vertical direction to press down the substrate on the receiving platform.

5. The bag body forming system of a handbag as claimed in claim 4, characterized in that: in, The bag forming system further comprises a mold replacement assembly, the mold replacement assembly comprising a plurality of mounting seats capable of loading a plurality of the forming molds, and a guide component located between the plurality of mounting seats and the mold driving mechanism, the guide component being provided with a mold disassembly component capable of moving along the guide component; The mold disassembly and assembly component can move between the mold driving mechanism and any one of the mounting seats along the guide component, and can remove the molding mold from the end of the mold driving mechanism and place it on an empty mounting seat, or extract the molding mold from the mounting seat and install it on the end of the mold driving mechanism.

6. The bag body forming system of a handbag as claimed in claim 1, characterized in that: Both ends of the bottom surface of the handbag have bottom bending parts connected to the corresponding side surfaces; wherein, The bag forming system further comprises a pair of bottom inserting parts arranged below the receiving platform and located on both sides of the forming mold in the width direction of the substrate, and the spacing between the pair of bottom inserting parts in the width direction of the substrate is the same as the length of the bottom surface of the handbag; and The substrate is bent around the forming mold to form a "-shaped structure and surrounds the forming mold, the pair of bottom insert parts move upward in the vertical direction, pushing the ends of the parts of the substrate corresponding to the lower end of the forming mold on both sides in the width direction to bend upward relative to the lower end of the forming mold to form the bottom bending part.

7. The bag body forming system of a handbag as claimed in claim 1, characterized in that: The bag forming system further comprises a side sealing assembly, wherein: The side sealing assembly includes side insert components arranged below the receiving platform and located on both sides of the forming mold in the length direction of the substrate; wherein, The substrate is bent around the forming mold to form a After the "-shaped structure is formed and surrounds the forming mold, the side insertion component moves toward the forming mold along the length direction of the substrate, pushing the side surfaces of the substrate on both sides to bend inward at the outer ends in the width direction at the same time and the corresponding ends overlap each other.

8. The bag body forming system of a handbag as claimed in claim 7, characterized in that: The side sealing assembly also includes a pressing component disposed below the receiving platform and located on both sides of the forming mold in the width direction of the substrate; wherein, When the folded edges at both ends of the substrate are inserted into each other in the height direction of the mold body, and the side surfaces of the substrate on both sides are simultaneously bent inward at the outer ends in the width direction and the corresponding ends overlap with each other, the clamping component moves toward the forming mold so that the overlapping parts of the corresponding ends of the side surfaces of the substrate on both sides are overlapped together.

9. The bag body forming system of a handbag as claimed in claim 1, characterized in that: in, The bag forming system further comprises a bottom support member arranged below the receiving platform and aligned with the lower end of the forming mold in the vertical direction; wherein, The bottom support member may face the forming mold in a vertical direction to clamp the substrate together with the lower end of the forming mold.

10. A method for forming a bag body of a handbag, using the bag body forming system according to any one of claims 1 to 9; characterized in that: The steps include: S1: die-cutting a raw material to form a substrate for a handbag, wherein the substrate includes a first substrate side surface, a substrate middle portion, and a second substrate side surface in sequence in the length direction, wherein the substrate middle portion is adapted to the shape of the bottom surface of the handbag, and the first substrate side surface and the second substrate side surface are adapted to the shapes of the two side walls of the handbag respectively, and the two ends of the substrate middle portion in the width direction of the substrate are respectively provided with bottom folding extension portions; S2: bending the free ends of the first substrate side surface and the second substrate side surface in the length direction inward respectively to form folded edges; S3: The substrate with the folded edge is transferred to the receiving platform and is located directly below the forming mold. The forming mold moves in the vertical direction and the lower end presses down the middle of the substrate. The substrate is bent around the forming mold to form a " "-shaped structure and surrounds the forming mold; S4: The grasping portion of at least one first side wall of the molding mold grasps the corresponding side surface of the substrate, and drives the side surface of the substrate to reciprocate relative to the mold body of the molding mold along the height direction of the mold body, so that the folded edges at both ends of the substrate are plugged into each other in the height direction of the mold body.

11. The bag forming method according to claim 10, characterized in that: The step S4 comprises: The gripping portion of the first side wall grips the corresponding side surface of the substrate, and drives the side surface of the substrate to move downward relative to the mold body until the upper end of the folded edge at the end of the side surface of the substrate on one side is lower than the lower end of the folded edge at the end of the side surface of the substrate on the other side, and the first side wall drives the side surface of the substrate to move upwardly until the folded edge at the end of the side surface of the substrate on one side is inserted into the folded edge at the end of the side surface of the substrate on the other side, and the upper ends of the folded edges at the ends of the side surfaces of the substrate on both sides are flush; or The gripping portion of the first side wall grips the corresponding side surface of the substrate, and drives the side surface of the substrate to move upward relative to the mold body until the lower end of the folded edge at the end of the side surface of the substrate on one side is higher than the upper end of the folded edge at the end of the side surface of the substrate on the other side, and the first side wall drives the side surface of the substrate to move downward in an inclined manner until the folded edge at the end of the side surface of the substrate on the other side is inserted into the folded edge at the end of the side surface of the substrate on one side, and the upper ends of the folded edges at the ends of the side surfaces of the substrate on both sides are flush; or The grabbing portion of one of the first side walls grabs the corresponding side surface of the substrate and drives the side surface of the substrate to move downward relative to the mold body, and the grabbing portion of the other first side wall grabs the corresponding side surface of the substrate and drives the side surface of the substrate to move upward relative to the mold body, until the upper end of the folded edge at the end of the side surface of the substrate on one side is lower than the lower end of the folded edge at the end of the side surface of the substrate on the other side; further The first side wall drives the side surface of the substrate on one side to move upwardly and tilted, and the other first side wall drives the side surface of the substrate on one side to move downwardly and tilted, until the folded edge at the end of the side surface of the substrate on the other side is inserted into the folded edge at the end of the side surface of the substrate on one side, and the upper ends of the folded edges at the end of the side surfaces of the substrates on both sides are flush.

12. The bag forming method according to claim 10, characterized in that: Before step S3, the following steps are also included: S3-1: Select a mold model according to the bag body size of the handbag to be formed, and connect the selected molding mold to the mold driving mechanism.

13. The bag forming method according to claim 10, characterized in that: Before step S4, the method further includes the following steps: The bottom folded extensions at both ends of the middle of the base material are bent by using the bottom inserting component to form the bottom folded portion of the handbag.

14. The bag forming method according to claim 10, characterized in that: After step S4, the following steps are also included: The side sealing assembly is used to push the first substrate side surface and the second substrate side surface to bend inward at the outer ends in the width direction thereof at the same time, and the corresponding ends overlap and overlap each other.

15. A bag body forming mold for a handbag, used in the bag body forming system for a handbag as claimed in any one of claims 1 to 9; characterized in that: in, The molding die comprises a die body, a pair of first side walls, and a pair of second side walls, wherein the pair of first side walls are arranged on opposite sides of the die body in a first direction and correspond to two side surfaces of the handbag respectively, and the pair of second side walls are arranged on opposite sides of the die body in a second direction and are respectively arranged between opposite ends of each side of the pair of first side walls, and when viewed along the height direction of the die body, the contour surrounded by the pair of first side walls and the pair of second side walls is adapted to the outer shape of the cross section of the handbag; A side wall guide assembly is provided between at least one of the first side walls and the mold body, the at least one first side wall can reciprocate along the side wall guide relative to the mold body along the height direction of the mold body, and is provided with a gripping portion adapted to the side of the corresponding handbag; and, The first direction is parallel to a length direction of the base material forming the handbag, and the second direction is parallel to a width direction of the base material forming the handbag.

16. The bag body forming mold of the handbag according to claim 15, characterized in that: in, The side wall guide assembly includes a side wall driving member and a guiding member, wherein the side wall driving member is fixed to the mold body, located on the inner side of the corresponding first side wall and is drivingly connected to the inner wall of the first side wall, and the guiding member includes a guiding member provided on the mold body extending along the height direction of the mold body, and a guided member provided on the inner wall of the corresponding first side wall, wherein the guided member is slidably adapted to be connected to the guiding member; and In a cross section taken along a height direction of the mold body, a lower end of the guide is closer to the corresponding first side wall in the first direction than an upper end thereof.

17. The bag body forming mold of the handbag according to claim 16, characterized in that: The mold body includes a body support, and the pair of first side walls and the pair of second side walls are arranged around the body support; wherein, The pair of second side walls are fixed to opposite ends of the main body support in the second direction, and the upper end of the main body support extends out of the top ends of the first side wall and the second side wall and is detachably connected to the mold driving mechanism; and, The side wall driving member is a driving cylinder, the driving cylinder is fixed to a corresponding inner wall of the second side wall, and the output end of the driving cylinder is connected to a corresponding inner wall of the first side wall; The guiding member is a guide rail located in the middle of the main body bracket in the second direction and extending along the height direction of the main body bracket, and the guided member is a slider located on the corresponding inner wall of the first side wall in the second direction and adapted to the guide rail.

18. The bag body forming mold of the handbag according to claim 15, characterized in that: The grabbing portion is a plurality of suction cups evenly distributed on the outer wall of the first side wall, and the plurality of suction cups are connected to an external air extraction device through a pipeline; wherein, The plurality of suction cups are all funnel-shaped, with their openings facing the first side wall away from the mold body, and the outer edges of the suction cups are flush with the first side wall; and The suction cup may extend out of the outer side of the first side wall to grasp a corresponding side surface of the substrate.

19. The bag body forming mold of a handbag according to claim 15, characterized in that: in, The second side wall is formed with an air suction hole penetrating the second side wall, and the air suction hole is connected to an external air suction device through a pipeline arranged in the mold body; and when viewed along the second direction, the air suction hole is located on the second side wall in the area of ​​the folded edge of the handbag on the inserted side; or, A blowing hole is formed on the second side wall and penetrates the second side wall. The blowing hole is connected to an external blowing device through a pipeline arranged in the mold body; and when viewed along the second direction, the blowing hole is located on the second side wall in an area below the folded edge on the side where the folded edge of the handbag is inserted.

Images