A method for manufacturing shoe back lining and shoe back lining

Abstract

The present invention relates to the field of production and processing technology, and specifically to a method for making a shoe back lining, wherein a double-density original cardboard is selected, and a drawing is performed, and the original cardboard is divided into an upper lining and a lower lining by shrinking and dividing, wherein the lower lining is drawn at a place where the hardness of the double-density original cardboard is larger, and the upper lining is drawn at a place where the hardness of the double-density original cardboard is smaller; the upper lining and the lower lining are cut out from the original cardboard respectively; a number of bonding points are set, and the upper ends of the upper lining and the lower lining are bonded to each other according to the bonding points; the bonded upper lining and the lower lining are hot-pressed into an integral shoe back lining, and the edge of the shoe back lining is thinned. In the present invention, the hard lower lining can provide support for the shape of the shoe, prevent the shoe from deforming, and avoid the problem of hanging feet, while the soft upper lining can greatly reduce the wear on the human foot, which is conducive to improving the comfort of the wearer.

Description

Technical Field

[0001] The invention relates to the technical field of shoe processing, and in particular to a method for manufacturing a shoe back lining and a shoe back lining. Background Art

[0002] During the manufacturing process of shoes, in order to increase the strength and hardness of the shoes and maintain the shape of the shoes, it is often necessary to place a shoe lining between the inner surface and the inner lining of the shoes. At present, traditional shoe back linings are produced and processed with materials with consistent overall hardness. However, the traditional shoe back lining production method has a relatively simple material selection, and softness and hardness cannot be taken into account. For example, choosing a material with good hardness will make the appearance good-looking and make the shoe appearance durable, but the edges will rub the feet and the comfort is not enough; while choosing a soft material may not cause the problem of rubbing the feet, but the shoe shape cannot be supported, it is easy to deform, and the problem of hanging feet will occur.

[0003] Therefore, the industry is in urgent need of a solution that can solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a method for manufacturing a shoe back lining and a shoe back lining in view of the deficiencies of the prior art. The purpose of the present invention can be achieved through the following technical solutions.

[0005] A method for manufacturing a shoe back lining, comprising:

[0006] Select a double-density original paperboard, draw a picture, and divide the double-density original paperboard into an upper lining sheet and a lower lining sheet by reducing and segmenting, wherein the lower lining sheet is drawn at a place where the double-density original paperboard has a high density, and the upper lining sheet is drawn at a place where the double-density original paperboard has a low density;

[0007] Cut the upper lining sheet and the lower lining sheet out of the double-density original paperboard respectively;

[0008] Setting a number of fitting points, fitting the lower end of the upper lining sheet and the upper end of the lower lining sheet together according to the fitting points;

[0009] The upper lining and the lower lining that have been bonded are heat-pressed to form an integral shoe back lining, and the edge of the shoe back lining is thinned.

[0010] Preferably, the double-density base paperboard is a double-density TPU base paperboard or a double-density EVA base paperboard.

[0011] Preferably, the lower lining sheet is cut out by die cutting, and the upper lining sheet is cut out by laser cutting.

[0012] Preferably, when drawing, mutually matching edge patterns are respectively provided at the lower end of the upper lining sheet and the upper end of the lower lining sheet.

[0013] Preferably, during the bonding, the edge patterns of the upper lining sheet and the lower lining sheet are engaged with each other, and the upper lining sheet and the lower lining sheet are bonded to each other using solder or glue.

[0014] Preferably, the thinning process is to press the upper lining sheet to have a uniform slope and to make the tail thickness of the lining sheet 0.15 mm-0.25 mm.

[0015] Preferably, the hardness of the upper lining is 53A-62A, and the softening temperature is 70-80°C; the hardness of the lower lining is 96A-100A, and the softening temperature is 70-80°C.

[0016] Preferably, setting a plurality of fitting points includes setting fitting points at least at the midpoint and at the left and right end points of the upper lining or the lower lining.

[0017] A shoe back lining comprises an upper lining and a lower lining, wherein the lower edge of the upper lining or the upper edge of the lower lining is provided with a plurality of fitting points, the fitting points are coated with a fitting layer, the lower edge of the upper lining and the upper edge of the lower lining are fitted together via the fitting layer, the hardness of the upper lining is less than that of the lower lining, the thickness of the upper lining gradually decreases from the inside to the outside, and the lower edge of the upper lining and the upper edge of the lower lining are provided with mutually interlocking edge patterns.

[0018] Preferably, the tail thickness of the upper lining is 0.15-0.25mm; the hardness of the upper lining is 53A-62A, and the softening temperature is 70-80°C; the hardness of the lower lining is 96A-100A, and the softening temperature is 70-80°C; the bonding layer is a solder layer or a glue layer; the double-density original paperboard is a double-density TPU original paperboard or a double-density EVA original paperboard.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention develops a shoe back lining and a manufacturing method thereof, wherein a double-density original paperboard is used to separate an upper lining piece and a lower lining piece of different hardness and softness. Since the upper lining piece and the lower lining piece are separated from the same original paperboard, the two can be well fitted and connected, ensuring that the upper lining piece and the lower lining piece can be fitted and positioned with each other and hot-pressed and melted into a whole. The hard lower lining piece can provide support for the shape of the shoe, prevent the shoe from deforming, and avoid the problem of hanging feet, while the soft upper lining piece can greatly reduce the wear on human feet. When used to produce shoes, the stability of the shoe structure can be ensured while also avoiding abrasion to the human body, which is beneficial to improving the comfort of the wearer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1Schematic diagram of the lower lining in an embodiment of the present invention.

[0022] Figure 2 Schematic diagram of the upper lining in an embodiment of the present invention.

[0023] Figure 3 It is a schematic diagram of the upper lining and the lower lining after being bonded together in an embodiment of the present invention.

[0024] Figure 4 Schematic diagram of the back lining of a shoe in an embodiment of the present invention. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only 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 ordinary technicians in this field without making creative work belong to the protection scope of the present invention.

[0026] Aiming at the problem that the selection of shoe back lining materials produced by traditional methods is relatively single and softness and hardness cannot be taken into account at the same time, the present invention provides a method for manufacturing shoe back linings. The shoe back linings manufactured by the method are used to produce shoes, which can ensure the stability of the shoe structure and avoid abrasion to the human body.

[0027] A shoe backing, such as Figures 1 to 4 As shown, it includes an upper lining 2 and a lower lining 1, as shown Figure 4 As shown, the upper lining sheet 2 and the lower lining sheet 1 are cut from the same double-density original paperboard and melted together by hot pressing. Double-density original paperboard is selected. Since different regions of the double-density original paperboard have different densities, different regions show different hardness, but their melting temperatures are the same. The lower lining sheet 1 is cut out by die cutting, and the upper lining sheet 2 is cut out by laser cutting. The harder lower lining sheet 1 can save time and improve production efficiency by die cutting, while the softer upper lining sheet 2 can better fit and connect with the lower lining sheet 1 by laser cutting. The lower end of the upper lining sheet 2 or the upper end of the lower lining sheet 1 is provided with a plurality of bonding points 3, and a bonding layer is coated at the bonding points 3. The bonding layer makes the lower edge of the upper lining sheet 2 and the upper edge of the lower lining sheet 1 bond to each other. A plurality of bonding points 3 are provided on the upper lining sheet 2 or the lower lining sheet 1, and the upper ends of the upper lining sheet 2 and the lower lining sheet 1 are bonded to each other according to the bonding points 3. The state of the upper lining sheet 2 and the lower lining sheet 1 after bonding is as shown in FIG. Figure 3As shown, the present invention does not require the number of fitting points 3, which can be determined according to actual conditions, as long as the positions of the upper lining 2 and the lower lining 1 do not change after fitting. The hardness of the upper lining 2 is less than that of the lower lining, and the lower lining 1 is cut out at the place where the density of the double-density original cardboard is large, and the upper lining 2 is cut out at the place where the density of the double-density original cardboard is small. The thickness of the upper lining 2 gradually decreases from the inside to the outside, presenting a thin structure. The thin structure of the shoe back lining is specifically that the thickness of the tail part of the shoe back lining changes from thick to thin evenly, thereby reducing the wear on the human foot. As shown Figure 4 As shown, the upper lining 2 and the lower lining 1 are hot pressed into a whole, and after being thinned, the upper lining 2 is melted into a soft edge to protect the human foot.

[0028] A shoe back lining provided in this embodiment, such as Figure 3 As shown, the lower edge of the upper lining sheet 2 and the upper edge of the lower lining sheet 1 are provided with mutually interlocking edge lines, and the edge lines of the upper lining sheet 2 and the edge lines of the lower lining sheet 1 can restrict each other, play a role of limiting, and avoid position change during the bonding process. Specifically, during bonding, the edge lines of the upper lining sheet 2 and the lower lining sheet 1 are interlocked with each other, and the upper lining sheet 2 is bonded to the lower lining sheet 1 with solder or glue, so that the upper lining sheet 2 and the lower lining sheet 1 are tightly bonded together.

[0029] In the shoe back lining provided in this embodiment, the tail thickness of the upper lining 2 is 0.15-0.25mm. If the tail thickness is too small, it is easy to be damaged by external force, and if the tail thickness is too thick, it will cause abrasion to human feet. After many experiments, the tail thickness range of 0.15-0.25mm can achieve the above-mentioned effect, and as a preferred embodiment, the tail thickness of 0.2mm has better effect.

[0030] In the present embodiment, a shoe back lining is provided, wherein the hardness of the upper lining 2 is 53A-62A, and the softening temperature is 70-80°C; the hardness of the lower lining 1 is 96A-100A, and the softening temperature is 70-80°C. Therefore, by selecting a temperature within the temperature range of 70-80°C, the upper lining 22 and the lower lining 11 can be melted at the same time, which is convenient for hot pressing and thinning treatment, and different hardnesses can meet different requirements, that is, the lower lining 11 is harder to provide support, and the upper lining 22 is softer to protect human feet and avoid abrasions of human feet.

[0031] A shoe back lining provided in this embodiment, such as Figure 3As shown, at least the midpoint and left and right end points of the upper lining sheet 2 or the lower lining sheet 1 are provided with the bonding point 33. The bonding point 33 can be provided on the upper lining sheet 22 or the lower lining sheet 11, so as to facilitate the bonding of the upper lining sheet 22 and the lower lining sheet 11. At least the midpoint and left and right end points of the upper lining sheet 22 or the lower lining sheet 11 are provided with the bonding point 33, so that the bonding force between the upper lining sheet 22 and the lower lining sheet 11 can be more balanced, and the possibility of falling off can be reduced.

[0032] In the shoe back lining provided in this embodiment, the bonding layer is a solder layer or a glue layer, which can effectively and tightly bond the upper lining 2 and the lower lining 1 together.

[0033] In the shoe back lining provided in this embodiment, the double-density original paperboard is a double-density TPU original paperboard or a double-density EVA original paperboard.

[0034] A method for making a shoe back lining, such as Figures 1 to 4 As shown, including:

[0035] Select a double-density original paperboard. Since different areas of the double-density original paperboard have different densities, the hardness of different areas is also different, but the melting temperature is the same. Draw on the double-density original paperboard. The drawing is mainly to draw the shape of the shoe back lining to be produced. After the shoe back lining is drawn, the original paperboard is divided into an upper lining 2 and a lower lining 1 by shrinking and splitting. The lower lining 1 is as shown in Figure 1 As shown, the lower lining 1 is used as the main body of the shoe back lining to provide support, and the upper lining 2 is used as Figure 2 As shown, the upper lining 2 is used to protect the user's feet and prevent the feet from being damaged by wear. In order to meet the requirements, the hardness of the upper lining 2 needs to be lower than that of the lower lining 1. Therefore, the lower lining 1 is cut out at the place where the hardness of the double-density original cardboard is larger, and the upper lining 2 is cut out at the place where the hardness of the double-density original cardboard is smaller.

[0036] The upper lining 2 and the lower lining 1 are cut out from the original cardboard respectively. Since the upper lining 2 and the lower lining 1 need to be processed and combined into a complete shoe back lining later, the upper lining 2 and the lower lining 1 are cut out from the same original cardboard, which is convenient for combining into one, and can fit well together, thereby ensuring the quality of the manufactured shoe back lining.

[0037] A plurality of bonding points 3 are set on the upper lining sheet 2 or the lower lining sheet 1, and the upper ends of the upper lining sheet 2 and the lower lining sheet 1 are bonded to each other according to the bonding points 3. The state of the upper lining sheet 2 and the lower lining sheet 1 after bonding is as shown in FIG. Figure 3 As shown, the present invention does not require the number of the bonding points 3, which can be determined according to actual conditions, as long as it can ensure that the positions of the upper lining sheet 2 and the lower lining sheet 1 do not change after bonding.

[0038] The upper lining 2 and the lower lining 1 that have been bonded are hot pressed into an integrated shoe back lining. The bonded upper lining 2 and the lower lining 1 can ensure that their positions do not change during the hot pressing process, thereby ensuring the quality of the hot pressing of the shoe back lining. In addition, the edge of the shoe back lining is processed to be thinned. After the thinning process, the edge of the shoe back lining presents a structure in which the thickness of the end portion of the shoe back lining changes from thick to thin, thereby reducing the wear on the human foot. Figure 4 As shown, the upper lining 2 and the lower lining 1 are hot pressed into a whole, and after being thinned, the upper lining 2 is melted into a soft edge to protect the human foot.

[0039] In the present embodiment, a method for manufacturing a shoe back lining is provided. The double-density original paperboard is a double-density TPU original paperboard or a double-density EVA original paperboard. The same original paperboard can be divided into a harder lower lining sheet 1 and a softer upper lining sheet 2, so that the lower lining sheet 1 and the upper lining sheet 2 can be conveniently fused into a whole later, thereby ensuring the quality of the fusion, so that the overall effect and comfort of the manufactured shoe back lining are better.

[0040] A method for making a shoe back lining is provided in this embodiment. The lower lining 1 is cut out by die cutting, and the upper lining 2 is cut out by laser cutting. The harder lower lining 1 can save time and improve production efficiency by die cutting, while the softer upper lining 2 can better fit and connect with the lower lining 1 by laser cutting.

[0041] In the method for making a shoe back lining provided in this embodiment, when drawing, mutually matching edge patterns are respectively provided on the fitting edges of the upper lining 2 and the lower lining 1, such as Figure 3 As shown, the edge grains of the upper lining sheet 2 and the lower lining sheet 1 can restrict each other, play a role of limiting, and avoid position change during the bonding process. Specifically, during bonding, the edge grains of the upper lining sheet 2 and the lower lining sheet 1 are engaged with each other, and the upper lining sheet 2 is bonded to the lower lining sheet 1 with solder or glue, so that the upper lining sheet 2 and the lower lining sheet 1 are tightly bonded together.

[0042] The present embodiment provides a method for making a shoe back lining. During the thinning process, the upper lining 2 is pressed out with a uniform slope and the thickness of the tail is 0.15-0.25 mm. If the thickness of the tail is too small, it is easy to be damaged by external force. If the thickness of the tail is too thick, it will cause abrasion to human feet. After many experiments, the tail thickness range of 0.15-0.25 mm can achieve the above effect. Preferably, the tail thickness of 0.2 mm has better effect.

[0043] In the present embodiment, a method for manufacturing a shoe back lining is provided. The hardness of the upper lining 2 is 53A-62A and the softening temperature is 70-80°C. The hardness of the lower lining 1 is 96A-100A and the softening temperature is 70-80°C. Therefore, by selecting a temperature within the temperature range of 70-80°C, the upper lining 2 and the lower lining 1 can be melted at the same time, which is convenient for hot pressing and thinning treatment. Different hardnesses can meet different requirements, that is, the lower lining 1 is harder to provide support, and the upper lining 2 is softer to protect human feet and avoid abrasions of human feet.

[0044] In the method for making a shoe back lining provided in this embodiment, the fitting point 3 can be set on the upper lining 2 or on the lower lining 1, so as to facilitate the fitting of the upper lining 2 and the lower lining 1. Figure 3 As shown, at least at the midpoint and the left and right end points of the upper lining 2 or the lower lining 1, the bonding point 3 can make the bonding force between the upper lining 2 and the lower lining 1 more balanced and reduce the possibility of falling off.

[0045] The present invention is further described above with the aid of specific embodiments. However, it should be understood that the specific description here should not be construed as limiting the essence and scope of the present invention. Various modifications made to the above embodiments by ordinary technicians in the field after reading this specification are all within the scope of protection of the present invention.

Claims

1. A method for manufacturing a shoe back lining, characterized in that: include: Select a double-density original paperboard, draw a picture, and divide the double-density original paperboard into an upper lining sheet and a lower lining sheet by reducing and segmenting, wherein the lower lining sheet is drawn at a place where the double-density original paperboard has a high density, and the upper lining sheet is drawn at a place where the double-density original paperboard has a low density; Cut the upper lining sheet and the lower lining sheet out of the double-density original paperboard respectively; Setting a number of fitting points, fitting the lower end of the upper lining sheet and the upper end of the lower lining sheet together according to the fitting points; The upper lining and the lower lining that have been bonded are hot pressed to form an integral shoe back lining, and the edge of the shoe back lining is thinned; The thinning process is to press the upper lining sheet to a uniform slope and make the tail thickness 0.15mm-0.25mm; The hardness of the upper lining is 53A-62A, and the softening temperature is 70-80°C; the hardness of the lower lining is 96A-100A, and the softening temperature is 70-80°C.

2. The method for manufacturing a shoe back lining according to claim 1, characterized in that: The double-density original paperboard is a double-density TPU original paperboard or a double-density EVA original paperboard.

3. The method for manufacturing a shoe back lining according to claim 1, characterized in that: The lower lining piece is cut out by die cutting, and the upper lining piece is cut out by laser cutting.

4. The method for manufacturing a shoe back lining according to claim 1, characterized in that: When drawing, mutually matching edge patterns are respectively provided at the lower end of the upper lining piece and the upper end of the lower lining piece.

5. The method for manufacturing a shoe back lining according to claim 4, characterized in that: When bonding, the edge patterns of the upper lining and the lower lining are engaged with each other, and the upper lining and the lower lining are bonded to each other using solder or glue.

6. The method for manufacturing a shoe back lining according to claim 1, characterized in that: Setting a plurality of fitting points includes setting fitting points at least at the midpoint and at the left and right end points of the upper lining or the lower lining.

7. A shoe back lining, characterized in that: It comprises an upper lining sheet and a lower lining sheet, wherein the lower edge of the upper lining sheet or the upper edge of the lower lining sheet is provided with a plurality of bonding points, the bonding points are coated with a bonding layer, the lower edge of the upper lining sheet and the upper edge of the lower lining sheet are bonded together through the bonding layer, the hardness of the upper lining sheet is less than that of the lower lining sheet, the thickness of the upper lining sheet gradually decreases from the inside to the outside, and the lower edge of the upper lining sheet and the upper edge of the lower lining sheet are provided with mutually biting edge lines; The tail thickness of the upper lining is 0.15-0.25mm; the hardness of the upper lining is 53A-62A, and the softening temperature is 70-80°C; the hardness of the lower lining is 96A-100A, and the softening temperature is 70-80°C; the bonding layer is a solder layer or a glue layer.

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