Box body, mold thereof and mold operation method

Abstract

The invention provides a box body, a mold thereof and a mold operation method, and relates to the technical field of luggage, the box body comprises two shells and a zipper structure used for connecting the two shells, the zipper structure comprises two pieces of zipper cloth and a keel fixedly connected with the zipper cloth; wherein the zipper cloth is provided with first zipper teeth used for controlling the two shells to be opened and closed, the shells are provided with grooves used for containing the keels, and the keels are fixed in the grooves so that the zipper cloth can be fixed to the shells. Therefore, the problems that an existing zipper box is high in cost, a leather strap or a frame body is higher than a box body after assembly, and the strength of a box opening is poor are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of luggage, and more specifically, to a box body, its mold and a mold operation method. Background Art

[0002] The traditional zipper structure is sewn onto the box body (shell) manually together with a leather strip, and the sewing line of the zipper is below the leather strip. The specific operation sequence is as follows: the inner lining cloth is first bonded to the box body, and then the leather strip and the zipper are put together on the box body and sewn. This part of the work takes a lot of time and must be completed by a very experienced high-speed sewing machine master. And manually operating the high-speed sewing machine for sewing has a high labor cost. In addition, after the traditional zipper is assembled with the box body, there will be a leather strip or a frame protruding about 2 - 5 mm above the box body, affecting the overall beauty of the box body. At the same time, the box mouth of the traditional zipper box is straight, and the strength of the box mouth is poor and it is easy to deform. Summary of the Invention

[0003] The present invention discloses a box body, aiming to improve the problems of high cost of the existing zipper box, a leather strip or a frame protruding above the box body after assembly, and poor strength of the box mouth.

[0004] The present invention adopts the following solutions:

[0005] A box body includes two shell bodies and a zipper structure for connecting the two shell bodies. The zipper structure includes two zipper cloths and a keel fixedly connected to the zipper cloths. Among them, a first zipper tooth for controlling the opening and closing of the two shell bodies is arranged on the zipper cloth, and a groove for accommodating the keel is arranged on the shell body, and the keel is fixed in the groove so that the zipper cloth is fixed on the shell body.

[0006] As a further improvement, the keel is an integral or segmented keel, and the keel can be bent along with the shape of the groove.

[0007] As a further improvement, a decorative strip is arranged at the opening of the groove to cover the keel, and the outer peripheral surface of the decorative strip is flush with the outer surface of the shell body.

[0008] As a further improvement, a first clamping part is arranged on the decorative strip, a second clamping part is arranged on the keel, and the decorative strip is fastened and fixed through the first clamping part and the second clamping part.

[0009] As a further improvement, the keel is fixed to the groove by means of adhesive or fastener connection.

[0010] As a further improvement, the material of the keel is plastic, soft rubber, wood, metal or leather.

[0011] As a further improvement, the inner wall surface of the groove is configured to be similar in shape to the outer wall surface of the keel.

[0012] As a further improvement, one end of the zipper cloth is provided with first zipper teeth, and the other end is provided with second zipper teeth. The first zipper teeth are exposed outside the box body and are used for meshing with the first zipper teeth of another zipper body; the second zipper teeth are used for meshing with the third zipper teeth on the inner lining cloth of the box body.

[0013] As a further improvement, the zipper cloth is integrally formed with the keel or fixed by sewing or gluing.

[0014] Another mold is provided, which includes a mold body and a movable part. The mold is provided with a first forming part, and the movable part is provided with a second forming part and is arranged around the first forming part. The heated sheet is adsorbed by vacuum so that the sheet is adsorbed on the surface of the first forming part to form the shell, and the groove is formed through the second forming part, wherein the shell is the shell as described in any one of the above.

[0015] Another operation method of the mold is provided, which includes the following steps:

[0016] (1) Gather the 4 movable parts arranged around the mold body towards the center in the horizontal direction;

[0017] (2) Place the heated plastic sheet on the mold body;

[0018] (3) Adsorb the plastic sheet by vacuum so that the sheet is adsorbed downward on the first forming part 61 of the mold body to form the main body of the shell; and form a groove at the second forming part of the movable part;

[0019] (4) When demolding, the movable part first moves away from the center and outwards in the horizontal direction to complete the demolding of the groove; then the mold body sinks so that the shell is separated from the mold body to realize the demolding of the shell;

[0020] (5) Finally, take out the shell to complete the mold removal.

[0021] Another operation method of the mold is provided, which includes the following steps:

[0022] (1) Place the 4 movable parts into the assembly grooves around the mold body;

[0023] (2) Place the heated plastic sheet on the mold body;

[0024] (3) Adsorb the plastic sheet by vacuum so that the plastic sheet is adsorbed downward on the first forming part of the mold body to form the main body of the shell; and form a groove 14 at the second forming part of the movable part;

[0025] (4) During demolding, the movable part is synchronously ejected upward with the housing to separate from the mold body, and then the movable part is moved out laterally to complete the demolding of the groove.

[0026] By adopting the above technical solutions, the present invention can achieve the following technical effects:

[0027] In this application, the keel is fixed to the groove of the box body, so that the zipper structure is fixed on the box body. During the fixing process of the zipper structure, manual high-speed sewing is not required, thus reducing labor costs. In addition, the keel can be fixed through assembly, and its operation difficulty is much lower than that of high-speed sewing, which can ensure the assembly quality and then improve the yield rate. At the same time, the keel assembly and fixing method is very easy to realize automated production, solving the problem that traditional production lines cannot be automated. Modularize and automate the assembly production of the zipper structure, optimize the factory material management and the personnel configuration of the production line, greatly improve the production efficiency and product quality, greatly save the factory's labor costs and production costs, and truly achieve cost reduction and efficiency increase.

[0028] In addition, the keel is accommodated in the groove, which can make the height of the keel lower than the outer peripheral surface of the box body, making the appearance of the box body integrated, improving the box body effect and aesthetics. At the same time, the setting of the groove can enhance the strength of the opening of the box body, and the connection between the keel and the groove can further strengthen the strength of the box body. Thus, it improves the problem that the existing zipper box has a straight surface near the opening, resulting in weak box body strength. Description of the Drawings

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, so they should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0030] Figure 1 and Figure 2 are schematic structural diagrams of one embodiment of the present invention from different perspectives;

[0031] Figures 3 to 5 are schematic structural diagrams of the keel in different embodiments of the present invention;

[0032] Figure 6 is a schematic structural diagram of the connection between the keel and the zipper part by sewing (the dotted line indicates the sewing track);

[0033] Figures 7 to 10 are schematic assembly diagrams of the zipper structure in different embodiments of the present invention;

[0034] Figures 11 to 14 are schematic structural diagrams of the box body in different embodiments of the present invention;

[0035] Figures 15 to 18 are schematic structural diagrams of the assembly of the groove and the keel in different embodiments of the present invention;

[0036] Figures 19 to 23 are schematic structural diagrams of the groove in different embodiments of the present invention;

[0037] Figure 24 is a schematic structural diagram of the mold in one embodiment of the present invention;

[0038] Figure 25 is a schematic structural diagram of the box body in one embodiment of the present invention.

[0039] Figure 26 is a schematic structural diagram of the mold in another embodiment of the present invention.

[0040] Figure 27 are schematic diagrams of the dimensions of the groove in different embodiments of the present invention.

[0041] Icon:

[0042] 1 - Box body; 11 - Upper shell; 12 - Lower shell; 13 - Inner cloth; 131 - Third zipper teeth; 14 - Groove;

[0043] 2 - Zipper cloth; 21 - First zipper teeth; 22 - Second zipper teeth;

[0044] 3 - Keel; 31 - Rubber strip;

[0045] 4 - Rivet;

[0046] 5 - Decorative strip;

[0047] 6 - Mold body; 61 - First forming part;

[0048] 7 - Movable part; 71 - Second forming part;

[0049] 8 - Sheet. Detailed implementation manners

[0050] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0051] Embodiment

[0052] Combined with Figure 1 and Figure 2 , this embodiment provides a zipper structure for connecting the upper shell 11 and the lower shell 12 of the box body 1, including two zipper bodies. The zipper body includes a zipper cloth 2 and a keel 3. One end of the zipper cloth 2 is provided with a first zipper tooth 21, and the other end is used to connect with the inner cloth 13 of the box body 1. Among them, the first zipper tooth 21 is exposed outside the box body 1 and is used to engage with the first zipper tooth 21 of another zipper body; the keel 3 is connected to the zipper cloth 2, and by fixedly connecting the keel 3 to the box body 1, the zipper body is fixed on the box body 1. Preferably, the keel 3 is used to be installed on the outer peripheral surface of the box body 1 and is fixed to the box body 1 by means of fasteners or adhesives. Exemplarily, the fixing method of the keel 3 to the box body 1 can be rivet 4 (pull nail) fixing, screw fixing, glue fixing, hot melting, sewing, etc.

[0053] It should be noted that in this embodiment, the zipper body is fixed on the box body 1 by fixing the keel 3 to the box body 1. During the fixing process of the zipper body, manual high-speed sewing is not required, thereby reducing labor costs. In addition, the keel 3 can be fixed through assembly, and its operation difficulty is much lower than that of high-speed sewing, which can ensure the assembly quality and thus improve the yield rate. At the same time, the assembly and fixing method of the keel 3 is very easy to realize automated production, solving the problem that traditional production lines cannot be automated. Modularize and automate the assembly production of the zipper structure, optimize the factory material management and the personnel configuration of the production line, greatly improve the production efficiency and product quality, greatly save the labor cost and production cost of the factory, and truly achieve cost reduction and efficiency increase.

[0054] Based on the above embodiments, in an optional embodiment of the present invention, on the other end of the zipper cloth 2 relative to the first zipper teeth 21, there are second zipper teeth 22 for engaging with the inner cloth 13, and the keel 3 is arranged between the first zipper teeth 21 and the second zipper teeth 22. Exemplarily, a whole piece of zipper cloth 2 is selected, bent and sewn according to the required size, and the bent part is used to connect with the keel 3. In other embodiments, two pieces of zipper cloth 2 can also be selected for splicing and sewing, the bent parts of the two zipper parts are connected with the keel 3, and the end of the zipper cloth 2 far from the keel 3 is provided with the first zipper teeth 21, one end is used to engage with another zipper body, and the other end is used to engage with the inner cloth 13. For the traditional zipper box, the inner cloth, the zipper and the box body need to be sewn manually to become a whole and cannot be disassembled. In this embodiment, the zipper cloth 2 and the keel 3 form a modular assembly, and zipper teeth for engaging with the inner part are reserved inside, which is convenient for the installation, disassembly, cleaning or washing of the inner cloth 13, thus facilitating the use of consumers.

[0055] In a preferred embodiment, the keel 3 and the zipper cloth 2 are integrally formed. For example, secondary overmolding injection molding, not limited to this, in other embodiments, the keel 3 and the zipper cloth 2 can also be fixed by sewing (as Figure 6 shown), hot melting, rivets 4, clamping, buckling, gluing and other methods. Preferably, the keel 3 and the zipper cloth 2 are integrally injection molded, and their bonding strength is higher; the keel 3 is an integral or segmented keel, the integral keel is an entire independent keel, and the segmented keel is a keel composed of multiple segments; the keel 3 can be bent along with the shape of the box body, so it can fit any radian of the circumference of the box body 1. The length of the keel 3 can be adjusted by the number of segments, and the length of the segments can be set according to requirements. Combining Figures 3 to 5 , the keel 3 can be in the shape of a chain, a buckle or a pleated shape, etc. The keel 3 can be made of plastic, soft rubber, wood, metal, leather and other materials. In another embodiment, the keel 3 is an integrally hollow type, and the keel 3 is formed by whole-piece hollow extrusion or metal bending. It can be metal, soft rubber, or hard rubber or a combination of hard and soft co-extruded materials or wood. The material has a wide selection, good strength, and the keel 3 and the zipper can fit any radian of the circumference of the box body 1. Combining Figures 7 to 10 , the keel 3 can be in different shapes, and a rubber strip 31 can also be padded at the locking position to enhance the tightness of the locking position. The rubber strip 31 can be hard rubber or soft rubber, or a combination of both. The fixed rivets 4 can also be arranged on the bottom or side of the keel 3, and its installation form and shape are diverse, which can meet the design requirements of different box bodies 1.

[0056] Furthermore, the zipper cloth 2 is elastic. Through the elasticity generated by the zipper cloth 2 itself, the expansion function of the zipper box is realized. After use, the capacity of the box body 1 can be expanded by more than 20%. It is more concise, convenient and practical than the telescopic function of the zippers of traditional zipper boxes. Among them, the zipper cloth 2 can use recycled mineral water bottles as raw materials, be processed into a new type of environmental protection material, and be woven into an elastic zipper cloth 2. Not limited to this, other elastic fabrics can also be used. Thus, it can be applied to various forms of zipper boxes, such as: front-opening, rear-opening, side-opening, top-opening, external pockets, external backpacks, etc. Among them, a zipper box is a box that uses a zipper for opening and closing, including a blister zipper box, an injection-molded zipper box, a frame zipper box, a thermoformed zipper box, a cloth box, a chemical container box, etc. Not limited to this, no specific limitation is made.

[0057] Combined with Figures 11 to 14 , the present invention further provides a box body, including an upper shell 11 and a lower shell 12. The upper shell 11 and the lower shell 12 are connected through a zipper structure, and the zipper structure is the zipper structure of any one of the above embodiments. Preferably, a groove 14 is designed around the box opening. The groove 14 directly strengthens the box opening, and at the same time, a keel 3 is added in the groove 14 to improve the overall strength of the box body 1. During assembly, the keel 3 is snapped into the groove 14 and fixed to the groove 14 so that the zipper structure is fixedly connected to the box body 1. For example, rivets 4 (pulling nails) are driven from the inside of the box body 1 to the outside to fix the keel 3. The keel 3 can also be fixed to the groove 14 by screws, adhesives, hot melting, sewing, etc.

[0058] Another embodiment provides a box body, including two shells (the upper shell 11 and the lower shell 12 respectively) and a zipper structure for connecting the two shells. The zipper structure includes two zipper cloths 2 and a keel 3 fixedly connected to the zipper cloth 2; wherein, a first zipper tooth 21 for controlling the opening and closing of the two shells is arranged on the zipper cloth 2, and a groove 14 for accommodating the keel 3 is arranged on the shell. The keel 3 is fixed in the groove 14 so that the zipper cloth 2 is fixed on the shell.

[0059] Furthermore, the height of the keel 3 is not greater than the depth of the groove 14, so that the height of the keel 3 is lower than the outer peripheral surface of the box body 1, making the appearance of the box body 1 integrated and improving the overall effect and aesthetics of the box body 1. Preferably, a decorative strip 5 is arranged at the opening of the groove 14 to cover the keel 3, and the outer peripheral surface of the decorative strip 5 is flush with the outer surface of the shell, so that the appearance of the box body 1 is cleaner. In one implementation manner, a first clamping portion is arranged on the decorative strip 5, and a second clamping portion is arranged on the keel 3. The decorative strip 5 is fixedly buckled through the first clamping portion and the second clamping portion. The first clamping portion and the second clamping portion can be set as buckles, not limited to this.

[0060] Specifically, in this embodiment, referring to Figure 13, the box body 1 has no step undulations of the traditional opening method, the surface of the box body 1 is flatter, more integral and more beautiful. Refer to Figure 14 , the box body 1 has no large circumferential gaps of the traditional opening method, saves more space, and has a larger capacity inside the box body 1.

[0061] In another embodiment, in combination with Figures 15 to 18 , the inner wall surface of the groove 14 is configured to be similar to the outer wall surface of the keel 3, that is, the groove 14 can be matched and adjusted according to various shapes of the keel 3, and can be square, circular, elliptical, trapezoidal, etc., without specific limitation.

[0062] Preferably, the groove 14 is arranged near the opening of the housing, and the position of the groove 14 can be Figures 19 to 23 As shown, the setting of the groove 14 can enhance the strength of the opening of the box body 1, and the connection between the keel 3 and the groove 14 can further strengthen the strength of the box body 1. Thus, it improves the problem that the existing zipper box has a straight surface near the opening, resulting in weak strength of the box body. Preferably, as Figure 27 shown, the size range of the groove 14 is: w1: 0.3 - 35 mm; w2: 0.5 - 40 mm; w3: 1.0 - 40 mm; h: 0.3 - 35 mm.

[0063] Based on the above embodiments, in an alternative embodiment of the present invention, one end of the zipper cloth 2 is provided with a first zipper tooth 21, and the other end is provided with a second zipper tooth 22. The first zipper tooth 21 is exposed outside the box body 1 and is used to engage with the first zipper tooth 21 of another zipper body; the second zipper tooth 22 is used to engage with the third zipper tooth 131 on the inner cloth 13 of the box body 1. Preferably, the zipper cloth 2 and the keel 3 are integrally formed to facilitate conforming to any arc on the groove 14, and the length of the keel 3 can also be arbitrarily intercepted according to needs.

[0064] In combination with Figure 24 and Figure 25 , the present invention further provides a mold, including a mold body 6 and a movable part 7. The mold body 6 is provided with a first forming part 61, and the movable part 7 is provided with a second forming part 71. The movable part 7 is arranged around the first forming part 61, and the heated sheet 8 is adsorbed by vacuum so that the sheet 8 is adsorbed on the surface of the first forming part 61 to form a housing, and the groove 14 is formed through the second forming part 71, wherein the housing is the housing as described in the above embodiments. Exemplarily, the second forming part 71 protrudes outward. When the mold is opened, the movable part 7 first moves outward to facilitate the demolding of the housing.

[0065] Specifically, the using steps of the mold include:

[0066] (1) Gather the 4 movable parts 7 arranged around the upper part of the mold body 6 towards the center in the horizontal direction;

[0067] (2) Place the heated plastic sheet 8 on the mold body 6;

[0068] (3) Vacuum adsorb the plastic sheet 8 to make the sheet 8 be adsorbed downward on the first molding part 61 of the mold body 6 to form the shell body; and form a groove 14 at the second molding part 71 of the movable part 7;

[0069] (4) During demolding, the movable part 7 first moves away from the center horizontally and outwards to complete the demolding of the groove 14; subsequently, the mold body 6 sinks to separate the shell from the mold body 6 to achieve shell demolding;

[0070] (5) Finally, take out the shell to complete mold removal.

[0071] The movable part 7 and the mold body 6 are reset, and the above process is repeated to achieve mass production. It should be noted that this molding and demolding process is applicable to female mold thermoforming and can also be applied to male mold thermoforming. When applied to male mold thermoforming, the second molding part 71 of the movable part 7 can be recessed. Not limited to this, no specific limitation is made.

[0072] In other embodiments, referring to Figure 26 , an assembly groove for adapting to the movable part 7 is formed on the mold body 6, and the molding and demolding process includes:

[0073] (1) Place 4 movable parts 7 into the assembly grooves around the upper part of the mold body 6,

[0074] (2) Place the heated plastic sheet 8 on the mold body 6;

[0075] (3) Vacuum adsorb the plastic sheet 8 to make the sheet 8 be adsorbed downward on the first molding part 61 of the mold body 6 to form the shell body; and form a groove 14 at the second molding part 71 of the movable part 7;

[0076] (4) During demolding, the movable part 7 is synchronously taken out upwards with the shell to separate from the mold body 6, and then the movable part 7 is moved out laterally to complete the demolding of the groove 14. Repeat the above process to achieve mass production.

[0077] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions within the idea of the present invention belong to the protection scope of the present invention.

Claims

1. A box body, characterized in that, It includes two shells and a zipper structure for connecting the two shells. The zipper structure includes two zipper fabrics and a keel fixedly connected to the zipper fabrics. Wherein, a first zipper teeth for controlling the opening and closing of the two shells is provided on the zipper fabric, and a groove for accommodating the keel is provided on the shell. The keel is fixed in the groove so that the zipper fabric is fixed on the shell.

2. The box according to claim 1, characterized in that, The keel is an integral or segmented keel, and the keel can be bent along the shape of the groove.

3. The box according to claim 1, characterized in that, A decorative strip is arranged at the opening of the groove to cover the keel, and the outer peripheral surface of the decorative strip is flush with the outer surface of the shell.

4. The box according to claim 3, wherein A first clamping portion is arranged on the decorative strip, and a second clamping portion is arranged on the keel. The decorative strip is fixedly clamped through the cooperation of the first clamping portion and the second clamping portion.

5. The box according to claim 1, characterized in that, The keel is fixed to the groove by means of adhesive or fastener connection.

6. The box according to claim 1, characterized in that, The material of the keel is plastic, soft rubber, wood, metal or leather.

7. The box according to claim 1, characterized in that, The inner wall surface of the groove is configured to be similar in shape to the outer wall surface of the keel.

8. The box according to claim 1, characterized in that, One end of the zipper fabric is provided with first zipper teeth, and the other end is provided with second zipper teeth. The first zipper teeth are exposed outside the box body and are used for meshing with the first zipper teeth of another zipper body; the second zipper teeth are used for meshing with the third zipper teeth on the inner lining fabric of the box body.

9. The box according to claim 8, characterized in that, The zipper fabric and the keel are integrally formed or fixed by sewing or gluing.

10. A mold, characterized in that, It includes a mold body and a movable part. The mold is provided with a first forming part, and the movable part is provided with a second forming part and is arranged along the periphery of the first forming part. By vacuum adsorbing the heated sheet material, the sheet material is adsorbed on the surface of the first forming part to form the shell, and the groove is formed through the second forming part, wherein the shell is the shell according to any one of claims 1-9.

11. An operating method of a mold as claimed in claim 10, which comprises the following steps: (1) Gather the 4 movable parts arranged around the mold body towards the center in the horizontal direction; (2) Place the heated plastic sheet material on the mold body; (3) Vacuum adsorb the plastic sheet material so that the sheet material is adsorbed downward on the first forming part of the mold body to form the shell body; and form a groove at the second forming part of the movable part; (4) When demolding, the movable part first moves away from the center and outwards in the horizontal direction to complete the demolding of the groove; then the mold body sinks so that the shell is separated from the mold body to realize the demolding of the shell; (5) Finally, take out the shell to complete the mold removal.

12. An operating method of a mold as claimed in claim 10, which comprises the following steps: (1) Place the 4 movable parts into the assembly grooves around the mold body; (2) Place the heated plastic sheet material on the mold body; (3) Vacuum adsorb the plastic sheet material so that the plastic sheet material is adsorbed downward on the first forming part of the mold body to form the shell body; and form a groove 14 at the second forming part of the movable part; (4) When demolding, the movable part is synchronously lifted out with the shell to be separated from the mold body, and then the movable part is moved out laterally to complete the demolding of the groove.

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