Heel cup and shoe

Abstract

The utility model discloses a heelpiece cup and a shoe, the heelpiece cup comprises a heelpiece cup main body, the heelpiece cup main body is a three-dimensional structure, the heelpiece cup main body comprises an outer layer; the lining is arranged on the inner side of the outer layer and is a waterproof lining; and the PP film is fixed on the surface of the outer layer through fusing combination, and the surface of the PP film is provided with three-dimensional textures formed by hot pressing. According to the heel cup and the shoe, the heel cup not only has a waterproof function, but also can be tightly attached to the three-dimensional and large-area PP film, and therefore the application range of the heel cup is widened.

Description

TECHNICAL FIELD

[0001] The utility model relates to a footwear product technical field, concretely relates to a heel cup and shoes. BACKGROUND

[0002] In the footwear manufacturing field, the existing heel cup technology has two major problems: first, it cannot achieve good waterproof performance, and traditional materials and processes cannot effectively prevent water penetration, affecting wearing comfort and shoe life; second, it is difficult to form a three-dimensional large-area PP film cover through secondary processing, limiting the application of the heel cup in complex structure design. UTILITY MODEL CONTENT

[0003] The utility model aims at overcoming the above-mentioned defects or problems in the background art, providing a heel cup and shoes, which not only has waterproof function, but also closely fits a three-dimensional and large-area PP film, thereby widening its application range.

[0004] To achieve the above-mentioned purpose, the utility model each embodiment adopts the following technical scheme but is not limited to the following scheme:

[0005] The first technical scheme relates to a heel cup, which comprises a heel cup main body, which is a three-dimensional structure, and the heel cup main body comprises: an outer layer; an inner layer, which is set inside the outer layer and is a waterproof inner layer; and a PP film, which is fixed on the surface of the outer layer by fusion cutting, and the surface of the PP film is provided with a three-dimensional texture formed by hot pressing.

[0006] The second technical scheme is based on the first technical scheme, wherein the inner layer adopts waterproof fabric.

[0007] The third technical scheme is based on the first technical scheme, wherein the inner layer is close to the outer layer and is attached to a waterproof film.

[0008] The fourth technical scheme is based on the first technical scheme, wherein the heel cup main body is formed by first fusion cutting and second fusion cutting to realize PP film covering.

[0009] The fifth technical scheme is based on the fourth technical scheme, wherein the PP film is fixed on the outer layer by ultrasonic wave after the first fusion cutting.

[0010] The sixth technical scheme is based on the fifth technical scheme, wherein the heel cup main body is re-shaped by a hot pressing die to restore its three-dimensional structure after the second fusion cutting.

[0011] The seventh technical scheme is based on the sixth technical scheme, wherein the three-dimensional texture of the PP film is formed by the hot pressing die.

[0012] The eighth technical scheme is based on any one of the first to seventh technical schemes, wherein a shoe adopts the above-mentioned heel cup in the heel part.

[0013] From the above description of the various embodiments of the present application, compared with the prior art, the various embodiments of the present application have the following beneficial effects:

[0014] In the first technical solution and related embodiments, the heel cup body of the three-dimensional structure adopts a waterproof lining, effectively blocking water penetration and keeping the inside of the shoe dry. The PP film is superimposed on the outer surface through a secondary fusing process to form a three-dimensional PP texture structure, thereby enhancing the bonding strength and improving the bonding strength, overall supportability and wrapability of the heel cup. This process realizes three-dimensional large-area PP film coverage, widening the application of the heel cup in complex structure design.

[0015] In the second technical solution and related embodiments, this is an embodiment of the lining, which directly selects waterproof fabric as the lining to effectively block water penetration.

[0016] In the third technical solution and related embodiments, this is an embodiment of the lining, which forms a waterproof effect by attaching a waterproof film.

[0017] In the fourth technical solution and related embodiments, twice fusing and shaping are used to ensure the firm combination between the PP film and the heel cup body and improve the structural strength and durability of the heel cup.

[0018] In the fifth technical solution and related embodiments, the high-frequency vibration of ultrasonic waves can quickly combine the PP film and the heel cup body tightly, ensuring the firmness and uniformity of the attachment.

[0019] In the sixth technical solution and related embodiments, the use of the hot-pressing mold ensures the accuracy and stability of the three-dimensional structure of the heel cup body.

[0020] In the seventh technical solution and related embodiments, the three-dimensional texture formed by the hot-pressing mold not only looks beautiful, but also enhances the bonding force between the PP film and the heel cup body, improving the visual effect and durability of the heel cup.

[0021] In the tenth technical solution and related embodiments, the heel part of the shoe combines the supportability, comfort and waterproof performance of the heel cup, improving the overall quality and wearing experience of the shoe. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings needed in the embodiment description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0023] Fig. 1 Front view of the heel cup of the embodiment;

[0024] Fig. 2 schematic view of the back of the heel cup of the embodiment;

[0025] Fig. 3 schematic view of the side of the heel cup of the embodiment. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are preferred embodiments of the present application, and should not be regarded as excluding other embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] In the claims, the description and the drawings of the present application, unless otherwise explicitly limited, the terms such as "first", "second", or "third" are used only to distinguish different objects, and are not used to describe a specific order.

[0028] In the claims, the description and the drawings of the present application, unless otherwise explicitly limited, for the terms of orientation, such as "center", "transverse", "vertical", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "back", "left", "right", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation and position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, so it cannot be understood as limiting the specific protection scope of the present application.

[0029] In the claims, the description and the drawings of the present application, unless otherwise explicitly limited, such as the terms "fixedly connected" or "fixedly connected", should be broadly understood, that is, any connection mode between the two without displacement relationship and relative rotation relationship, that is, it includes non-detachable fixed connection, detachable fixed connection, integration and fixed connection through other devices or elements.

[0030] In the claims, the description and the drawings of the present application, such as the terms "include", "have" and their variants, are intended to mean "include but not limited to".

[0031] As shown in FIG. Figs. 1 to 3 A heel cup, comprising a heel cup body, the body is a three-dimensional structure, which can better fit the foot type, reduce friction and discomfort, and ensure the comfort during wearing. Specifically, the heel cup selects a commercially available heel cup product with a three-dimensional structure. The heel cup body includes an outer layer, an inner layer and a PP film.

[0032] The outer layer is made of mesh or leather. Mesh provides breathability and lightweight, and is often used in athletic or casual shoes; leather provides durability, comfort, and aesthetics, and is often used in formal shoes or boots.

[0033] The inner lining is waterproof. Commercially available heel cups typically do not have waterproof linings; this application achieves waterproof functionality through the following two embodiments.

[0034] Example 1

[0035] Traditional heel cup linings typically lack waterproofing. To improve the waterproofing performance of the heel cup, this embodiment replaces the lining with a waterproof fabric. In this embodiment, GORE-TEX is selected as the waterproof lining fabric. This fabric effectively blocks water penetration while maintaining good breathability.

[0036] Example 2

[0037] A waterproof membrane is bonded between the inner and outer layers. This membrane needs to have good high-temperature resistance to ensure it is not damaged by high temperatures during subsequent manufacturing processes. For example, a TPU film can be used to prevent moisture from seeping through the gaps in the heel cup.

[0038] The PP film is fixed to the outer surface by melting and bonding. The surface of the PP film has a three-dimensional texture formed by hot pressing, which enhances the bonding strength, overall support and wrapping of the heel cup.

[0039] The heel cup body is formed through a first and second melting and shaping process to achieve PP film coverage. This two-stage melting and shaping ensures a strong bond between the PP film and the heel cup body, improving the structural strength and durability of the heel cup.

[0040] After the PP film melts during the first bonding process, it is fixed to the outer layer using ultrasound. The high-frequency vibration of the ultrasound can quickly and tightly bond the PP film to the heel cup body, ensuring a firm and uniform fit.

[0041] After the heel cup body is melted a second time, it is reshaped using a hot-pressing mold to restore its three-dimensional structure. The three-dimensional texture of the PP film is formed using a hot-pressing mold. The three-dimensional texture formed by the hot-pressing mold is not only aesthetically pleasing, but also enhances the bonding strength between the PP film and the heel cup body, improving the visual effect and durability of the heel cup.

[0042] In this embodiment, the three-dimensional heel cup body uses a waterproof lining to effectively prevent water penetration and keep the inside of the shoe dry. A PP film is superimposed on the outer surface through a secondary melting process to form a three-dimensional PP textured structure, thereby enhancing the bonding strength and improving the overall support and wrapping properties of the heel cup. This process achieves large-area three-dimensional PP film coverage, broadening the application of heel cups in complex structural designs.

[0043] A method for laminating a PP film to a heel cup as described above includes the following steps: surface treatment of the heel cup body to enhance adhesion; first melting the heel cup body, using ultrasound to fix the PP film onto the heel cup body after the first melting, and completing the first shaping; second melting the heel cup body with the PP film laminated; fixing the heel cup body after the second melting in a hot press mold for a second shaping; after the second shaping is completed, performing a quality inspection and confirming whether the color effect meets the requirements.

[0044] The secondary melting and shaping process utilizes a melting and shaping machine. The use of this machine improves the accuracy and efficiency of the melting and shaping process, ensuring the consistency and stability of the heel cup. The secondary melting process involves an upper mold and a lower mold, which are further divided into hot pressing and cooling steps, with hot pressing preceding cooling.

[0045] The specific steps are as follows:

[0046] Step 1: Surface Treatment: Perform surface treatment on the heel cup body to enhance its adhesion to the PP film. Apply a treatment agent to the surface of the heel cup body and bake it to the specified temperature and time.

[0047] Step Two: First Welding and Shaping: Adjust the parameters of the welding and shaping machine, and place the heel cup body into the mold for the first welding. Use ultrasound to fix the PP film onto the heel cup body, ensuring a tight fit. Then perform the first shaping to ensure a tight bond between the PP film and the heel cup body.

[0048] The hot-pressing parameters for the first melting point are as follows: upper mold temperature set at 170±10℃, lower mold temperature set at 120±10℃, hot-pressing pressure at 15-30pa, and hot-pressing time at 10-15 seconds.

[0049] Cooling parameters for the first meltdown: cooling pressure 10-30 Pa, cooling time 5-8 seconds.

[0050] The first shaping process involves preparing materials such as interlayer cotton, heel counter, and eyelet reinforcement, and assembling and positioning them according to design requirements. Then, the assembled heel cup body is placed into the mold for the first shaping. After shaping, necessary adjustments and inspections are performed.

[0051] During the first shaping process, the upper mold temperature was set to 192℃ and the lower mold temperature to 188℃, with a time of 260 seconds. The mold temperature was measured every 2 hours to prevent excessively high or low temperatures and to prevent quality variations.

[0052] Step 3, Second Welding: After the first shaping, the heel cup body is repaired and inspected as necessary, and then sent to the welding and shaping machine for a second welding to further strengthen the bonding force between the PP film and the heel cup body.

[0053] The hot-pressing parameters for the second melting are as follows: the upper mold temperature is set at 170±10℃, the lower mold temperature is set at 120±10℃, the hot-pressing pressure is 15-30pa, and the hot-pressing time is 10-15 seconds.

[0054] Cooling parameters for the second meltdown: cooling pressure 10-30 Pa, cooling time 5-8 seconds.

[0055] Step 4, Second Shaping: After the second melting, the main body of the heel cup is treated with glue spraying, trimming, and stitching, and then placed into a secondary mold for a second shaping to form a stable three-dimensional texture structure.

[0056] During the second shaping process, the upper mold temperature was set to 188℃ and the lower mold temperature to 185℃, with a time of 260 seconds. The mold temperature was measured every 2 hours to prevent excessively high or low temperatures and to prevent quality variations.

[0057] Step 5: Quality Inspection: After the second shaping is completed, check the heel cup body for defects such as excess glue or misalignment, and confirm that the color effect meets the requirements. Inspection standards include no rough edges, uniform color, consistent shade, and accurate pattern positioning.

[0058] A shoe whose heel portion utilizes the heel cup described in the above embodiment. The heel portion of this shoe combines the support, comfort, and waterproofing properties of the heel cup, enhancing the overall quality and wearing experience of the shoe.

[0059] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this utility model, but does not constitute a limitation on the scope of protection of this utility model. Modifications, equivalent substitutions, or other improvements to the embodiments of this utility model or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this utility model or the foregoing embodiments, should all be included within the scope of protection of this utility model.

Claims

1. A heel cup, characterized in that, Includes a heel cup body, which has a three-dimensional structure, and the heel cup body includes: Outer layer; The inner lining, located inside the outer layer, is waterproof; and A PP film is fixed to the outer surface by fusion bonding, and the surface of the PP film is provided with a three-dimensional texture formed by hot pressing.

2. A heel cup as described in claim 1, characterized in that, The lining is made of waterproof fabric.

3. A heel cup as described in claim 1, characterized in that, A waterproof membrane is bonded between the inner layer and the outer layer.

4. A heel cup as described in claim 1, characterized in that, The heel cup body is formed through a first melting and shaping process and a second melting and shaping process to achieve PP film coverage.

5. A heel cup as described in claim 4, characterized in that, The PP film is fixed to the outer layer by ultrasonic waves after the first melting.

6. A heel cup as described in claim 5, characterized in that, After the heel cup body melts a second time, its three-dimensional structure is restored by hot pressing mold.

7. A heel cup as described in claim 6, characterized in that, The three-dimensional texture of the PP film is formed by hot pressing mold.

8. A type of shoe, characterized in that, The heel portion adopts a heel cup as described in any one of claims 1 to 7.

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