Manufacturing process of the shoe heel counter, shoe heel counter and shoes

Abstract

This invention discloses a manufacturing process for a shoe heel counter, a shoe heel counter, and a shoe, belonging to the technical field of shoe heel counter manufacturing processes. The manufacturing process for the shoe heel counter includes the following steps: providing a first raw material, a first cut piece, and a second cut piece; molding the first raw material to obtain an inner core; cutting the first and second cut pieces respectively, wherein the shapes of the first and second cut pieces are adapted to the partial outline of the inner core, and the first and second cut pieces are connected to each other to form an outer sleeve; covering the outer surface of the inner core with the outer sleeve, wherein the inner surface of the outer sleeve is attached to the outer surface of the inner core to form a shoe heel counter blank, thus forming an outer sleeve that adapts to the outline of the inner core. The resulting shoe heel counter can better maintain the shape of the inner core, making the shape of the resulting shoe heel counter more full.

Description

Technical Field

[0001] This invention relates to the field of shoe heel counter manufacturing technology, and particularly to the preparation process of shoe heel counter, shoe heel counter and shoes. Background Technology

[0002] The heel counter is a common accessory in footwear. The heel counter, forefoot counter, and sole together form a cavity for the human foot to wear. The heel counter mainly provides support and wrapping for the heel.

[0003] The heel counter typically consists of an outer cover and an inner padding, with the cover encasing the padding. However, current heel counters often suffer from a mismatch between the shape of the cover and the shape of the padding, resulting in the cover excessively compressing the padding and causing the finished heel counter to lack fullness. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0005] In a first aspect, the present invention provides a manufacturing process for a shoe heel counter, comprising: providing a first raw material, a first cut piece, and a second cut piece; molding the first raw material to obtain an inner core; cutting the first cut piece and the second cut piece respectively, wherein the shapes of the first cut piece and the second cut piece are adapted to the partial outline of the inner core, and the first cut piece and the second cut piece are connected to each other to form an outer cover; covering the outer cover with the outer surface of the inner core, wherein the inner surface of the outer cover is attached to the outer surface of the inner core to form a shoe heel counter blank.

[0006] The manufacturing process of the shoe heel counter provided by the embodiments of the present invention has at least the following beneficial effects: the first raw material is molded to obtain an inner core, which serves as the filling material for the shoe heel counter to support its shape and achieve wrapping and support for the human heel. The first and second cut pieces, as part of the outer cover, need to cover a portion of the inner core respectively. Before the outer cover covers the inner core, the manufacturing process of the shoe heel counter cuts the shapes of the first and second cut pieces according to the outer contour of the inner core, so that after the first and second cut pieces are connected to each other, an outer cover that matches the outer contour of the inner core can be formed. When the outer cover covers the outer surface of the inner core, it helps to reduce the compression of the inner core by the outer cover, so that the shoe heel counter can better maintain the shape of the inner core, making the shape of the shoe heel counter fuller and avoiding the problem of excessive compression of the inner core by the outer cover.

[0007] According to some embodiments of the present invention, the upper edges of the first cut piece and the second cut piece are connected;

[0008] The process of covering the outer layer of the inner core with the inner surface of the outer layer adhering to the outer surface of the inner core also includes the following steps:

[0009] The second piece is attached to the back surface of the inner core;

[0010] Fold the first piece forward, covering the upper end and front surface of the inner core and fitting it snugly against the inner core.

[0011] Considering that when a user wears shoes with this heel counter, the heel mainly contacts the front surface of the heel counter, during manufacturing, the worker can attach the second piece to the back surface of the inner core, with the upper edges of the first and second pieces connected. After the second piece is attached, the worker can fold the first piece forward so that it covers the upper part and front surface of the inner core, thus achieving a wrapping effect between the first and second pieces. That is, the joint between the first and second pieces is located on the back surface of the inner core, thereby avoiding the problem of the first and second pieces rubbing against the body and improving the comfort of the user wearing the finished heel counter.

[0012] According to some embodiments of the present invention, the back surface of the inner core is provided with a groove, and the two ends of the groove are spaced apart from each other on the left and right.

[0013] The manufacturing process of the shoe's heel counter includes the following steps before the second piece is attached to the back surface of the inner core:

[0014] Position and fit the joint between the first and second cut pieces with the groove.

[0015] Specifically, the back surface of the inner core has a groove, which extends from the left end to the right end of the inner core. The two ends of the groove are spaced apart, meaning the shape of the groove matches the overall shape of the inner core. During production, workers can position and fit the joint between the first and second cut pieces along the groove, thus achieving the fit between the second cut piece and the inner core, as well as the wrapping of the upper and front surfaces of the first cut piece and the inner core. The positioning of the joint between the first and second cut pieces and the groove facilitates the positioning of the outer jacket and the inner core, allowing the formed outer jacket and inner core to wrap in the preset position, thereby improving the matching degree between the outer jacket and the inner core. The fitting of the joint between the first and second cut pieces and the groove makes the heel counter of the shoe smoothly transition at the joint between the first and second cut pieces, avoiding the problem of a protrusion at the joint between the first and second cut pieces.

[0016] According to some embodiments of the present invention, both the first cut piece and the second cut piece are coated with hot melt adhesive;

[0017] The second piece is attached to the back surface of the inner core; the first piece is folded forward, covering the upper end and front surface of the inner core and attaching to it, including the following steps:

[0018] Heat the second piece of fabric;

[0019] Position and fit the upper edge of the second piece with the groove;

[0020] Attach the second piece to the back surface of the inner core;

[0021] Fold the first piece forward so that it covers the top and front surface of the inner core;

[0022] The first piece of fabric is heated and pressed at multiple points, and the first piece of fabric is positioned and attached to the inner core at multiple points.

[0023] To gradually achieve the wrapping and bonding of the outer layer to the inner core, hot melt adhesive is sprayed onto both the first and second cut pieces. Workers can heat the second cut piece using an external heater to make it sticky, and then position and fit the upper edge of the second cut piece with the groove, thus fixing the relative position of the second cut piece and the inner core. The second cut piece is then pressed onto the back surface of the inner core to achieve bonding. The first cut piece is then folded forward so that it covers the upper end and front surface of the inner core, thus wrapping the inner core. Workers can then use the external heater to heat multiple points on the first cut piece, combined with hand pressing, to achieve multi-point positioning and bonding between the first cut piece and the inner core. This allows workers to adjust the wrapping position of the first cut piece and the inner core, assisting in achieving a complete bonding between the first cut piece and the inner core.

[0024] According to some embodiments of the present invention, the inner surface of the outer jacket is bonded to the outer surface of the inner core, and the process further includes the following steps:

[0025] Place the second piece, the inner core, and the first piece on the parting surface of the first forming mold;

[0026] The first molding mold is closed, and the second piece, the inner core, and the first piece are heated, connecting the first piece, the second piece, and the inner core into one piece.

[0027] After the worker wraps the outer layer around the inner core, the relative positions of the outer layer and the inner core are initially determined. Then, the worker can place the combination of the second piece, the inner core, and the first piece on the parting surface of the first molding mold. The first molding mold is then closed, and the first piece, the second piece, and the inner core are heated and kept warm to heat-press them together, thus fixing the fit between the first piece, the second piece, and the inner core and improving the shape stability of the shoe upper made using this shoe upper manufacturing process.

[0028] According to some embodiments of the present invention, the manufacturing process of the shoe heel counter further includes the following steps:

[0029] Provide two parallel shaping parts;

[0030] Remove the inner core and outer shell from the first molding mold;

[0031] The inner core and outer shell are sandwiched together between two shaping parts.

[0032] To ensure the shoe's heel counter provides adequate support and wrapping for the body, workers remove the hot-pressed inner core and outer shell from the first molding mold. While the inner core and outer shell are still warm, workers can clamp them together between two shaping components. The squeezing force of the two components keeps the inner core and outer shell in an arched shape, ensuring that the finished shoe heel counter effectively wraps and supports the body.

[0033] According to some embodiments of the present invention, the width of the first piece in the front-to-back direction is adapted to the front-to-back span of the inner core.

[0034] To ensure the first piece fully wraps around and fits the upper part and front of the inner core, avoiding excessive compression due to excessive tightness or wrinkles due to excessive looseness, the width of the first piece in the front-to-back direction is matched to the front-to-back span of the inner core during cutting. That is, the width of the first piece is relatively larger in areas with a larger front-to-back span of the inner core, and relatively smaller in areas with a smaller front-to-back span of the inner core. This allows the outer layer to better wrap and fit the inner core when it covers the outer surface, avoiding the problem of the outer layer being too tight or too loose. This ensures that the shape of the formed shoe heel counter largely retains the shape of the inner core, resulting in a fuller shape for the formed shoe heel counter.

[0035] According to some embodiments of the present invention, the upper end of the inner core is provided with a bulge, the bulge is arched, the rear end of the bulge is higher than the front end, the thickness of the bulge gradually decreases from back to front, the groove is provided below the bulge, and the first piece of fabric covers the outer surface of the bulge.

[0036] Specifically, to improve the fit of the heel counter to the human foot, a bulge is provided at the top of the inner core. The bulge is arched, meaning its shape matches the shape of the inner core. When a user wears a shoe with a heel counter made using this manufacturing process, the bulge surrounds the shoe opening to wrap around the heel. To avoid restricting the heel at the junction of the first and second cut pieces, a groove is located below the bulge, meaning the junction of the first and second cut pieces is located below the bulge. The first cut piece covers the entire surface of the bulge, making the heel counter more full and improving the fit between the bulge and the human heel.

[0037] According to some embodiments of the present invention, the first raw material is subjected to molding treatment, including the following steps:

[0038] The first raw material is placed on the parting surface of the second molding mold, the second molding mold is closed, and the first raw material is hot-pressed and kept warm.

[0039] Alternatively, the first raw material can be foamed and molded.

[0040] Optionally, the molding process of the first raw material includes a hot pressing process, in which the first raw material is placed on the parting surface of the second molding mold, the second molding mold is closed, and the first raw material is heated and kept at a constant temperature. Under the constraint of the mold cavity of the second molding mold, the first raw material is hot-pressed and formed, and the shape of the inner core prepared is more flexible, which is suitable for the use needs of various footwear. Optionally, the worker can foam the first raw material, and under the constraint of the foaming cavity, the first raw material expands and forms an inner core. The inner core is integrally molded, and the shape stability of the inner core is better.

[0041] According to some embodiments of the present invention, the first cut piece and the second cut piece are cut respectively, including the following steps:

[0042] A first cutting board and a second cutting board are provided, the shapes of the first cutting board and the second cutting board are both adapted to the partial outline of the inner core;

[0043] Cut the first piece of fabric along the shape of the first cutting board, and cut the second piece of fabric along the shape of the second cutting board;

[0044] Based on the covering effect of the first and second cut pieces on the inner core, adjust the shape of the first and second cut pieces.

[0045] Before cutting the first and second pieces separately, workers can prepare the first and second cutting boards in advance. They can cut the first and second pieces according to their outlines to make the shapes of the first and second pieces fit the outline of the inner core. When the outer shell wraps the inner core, workers can observe the wrapping effect of the first and second pieces on the inner core to see if it is too tight or too loose, and then adjust the shapes of the first and second cutting boards to improve the fit between the first and second pieces and the inner core.

[0046] According to some embodiments of the present invention, the first cut piece and the second cut piece are connected to each other to form a jacket, including the following steps:

[0047] Overlap the cut edges of the first and second pieces and sew them together, creating an excess edge at the junction of the first and second pieces.

[0048] Unfold the first and second pieces to form the coat, with the excess fabric on the inside of the coat.

[0049] When connecting the first and second cut pieces, workers can overlap the cut edges of the first and second cut pieces and sew them together step by step to ensure a stable connection between the cut edges of the first and second cut pieces. An excess edge is created at the junction of the first and second cut pieces. This excess edge is located on the inside of the outer layer. When the inner surface of the outer layer and the outer surface of the inner core are wrapped and fitted together, the excess edge is hidden inside the outer layer. This helps to reduce the impact of the excess edge on the overall appearance of the heel counter and eliminates any protrusion at the excess edge on the heel counter.

[0050] Secondly, the present invention also provides a shoe heel counter, which is manufactured using a shoe heel counter manufacturing process as described in any one of the first aspects.

[0051] The shoe heel counter provided by the embodiments of the present invention has at least the following beneficial effects: the shoe heel counter is made by the shoe heel counter manufacturing process shown in any one of the first aspects, wherein the first raw material is molded to obtain an inner core, the inner core serves as the filling material of the shoe heel counter to support the shape of the shoe heel counter and achieve wrapping and support for the human heel, the first cut piece and the second cut piece serve as part of the outer cover and need to respectively cover part of the inner core, the shoe heel counter manufacturing process, before the outer cover covers the inner core, cuts the shape of the first cut piece and the second cut piece according to the outer contour of the inner core, so that after the first cut piece and the second cut piece are connected to each other, an outer cover that matches the outer contour of the inner core can be formed. When the outer cover covers the outer surface of the inner core, it helps to reduce the compression of the inner core by the outer cover, so that the shoe heel counter can better maintain the shape of the inner core, so that the shape of the shoe heel counter is fuller and the problem of excessive compression of the inner core by the outer cover is avoided.

[0052] Thirdly, the present invention also provides a shoe, including a heel counter as shown in the second aspect.

[0053] The shoes provided according to embodiments of the present invention have at least the following beneficial effects: the shoes include the heel counter as shown in the second aspect, wherein a first raw material is molded to obtain an inner core, the inner core serving as filling material for the heel counter to support its shape and achieve wrapping and support for the human heel; a first cut piece and a second cut piece, as part of an outer cover, respectively cover a portion of the inner core; the manufacturing process of the heel counter involves cutting the shapes of the first and second cut pieces according to the outer contour of the inner core before the outer cover covers the inner core, so that after the first and second cut pieces are connected to each other, an outer cover that matches the outer contour of the inner core can be formed; when the outer cover covers the outer surface of the inner core, it helps to reduce the compression of the inner core by the outer cover, so that the heel counter can better maintain the shape of the inner core, making the shape of the heel counter more full and avoiding the problem of excessive compression of the inner core by the outer cover.

[0054] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0055] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0056] Figure 1 Structural diagrams of the first and second cut pieces of the shoe heel counter provided in an embodiment of the present invention;

[0057] Figure 2 This is a structural diagram illustrating the bonding between the second cut piece of the shoe heel counter and the inner core, provided in an embodiment of the present invention.

[0058] Figure 3 This is a structural diagram illustrating the folding of the first piece of the shoe heel counter relative to the inner core, as provided in an embodiment of the present invention.

[0059] Figure 4 This is a structural diagram of the shoe heel counter provided in an embodiment of the present invention;

[0060] Figure 5 This is a structural diagram of the inner core of the shoe heel counter provided in an embodiment of the present invention;

[0061] Figure 6 A flowchart illustrating the manufacturing process of the shoe heel counter provided in an embodiment of the present invention;

[0062] Figure 7 A flowchart illustrating the manufacturing process of the shoe heel counter provided in an embodiment of the present invention;

[0063] Figure 8 A flowchart illustrating the manufacturing process of the shoe heel counter provided in an embodiment of the present invention;

[0064] Figure 9 This is a flowchart illustrating the manufacturing process of the shoe heel counter provided in an embodiment of the present invention.

[0065] Figure label:

[0066] 100. Outer garment; 110. First piece; 120. Second piece; 200. Inner core; 210. Bulges; 220. Thread channel. Detailed Implementation

[0067] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0068] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0069] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or," "and / or," or "and / or" throughout the text implies three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0070] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0071] Example 1, see below for reference Figures 1 to 9 To describe the manufacturing process of the shoe heel counter provided in the embodiments of the present invention, the process steps are designed to make the fit between the outer shell 100 and the inner core 200 higher, resulting in a fuller shoe heel counter.

[0072] Understandably, see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The manufacturing process of the shoe heel counter provided by the present invention includes the following steps:

[0073] S100 provides a first raw material, a first cut piece 110, and a second cut piece 120;

[0074] S200, the first raw material is molded to obtain the inner core 200;

[0075] S300, the first piece 110 and the second piece 120 are cut respectively. The shape of the first piece 110 and the shape of the second piece 120 are adapted to the partial outline of the inner core 200. The first piece 110 and the second piece 120 are connected to each other to form the outer cover 100.

[0076] S400, the outer shell 100 is wrapped around the outer surface of the inner core 200, and the inner surface of the outer shell 100 is attached to the outer surface of the inner core 200 to form the shoe heel counter blank.

[0077] In step S200, the first raw material is molded to form an inner core 200. The inner core 200 serves as the filling material for the heel counter of the shoe to support the shape of the heel counter and achieve wrapping and support for the human heel.

[0078] Specifically, the inner core 200 can be arched. When a user wears a shoe with a heel counter made using the same manufacturing process, the inner core 200 can wrap around the heel and provide auxiliary support.

[0079] Furthermore, in order to improve the wrapping and support performance of the inner core 200 for the human heel, the first material may include a support sheet. After the inner core 200 is formed, the support sheet is placed inside the inner core 200. The support sheet may be made of materials with good support and elasticity, such as TPU (thermoplastic polyurethane elastomer), TPE (thermoplastic elastomer), or TPEE (thermoplastic polyester elastomer), to enhance the wrapping performance of the inner core 200 for the human body and the bending resistance of the inner core 200, which helps to prevent the user from stepping on the heel of the shoe and causing it to collapse.

[0080] It is understood that the molding process of the first raw material in step S200 includes the following steps:

[0081] S210, the first raw material is placed on the parting surface of the second molding mold, the second molding mold is closed, and the first raw material is hot-pressed and kept warm.

[0082] The first raw material may include a support sheet and multiple cotton bodies. The multiple cotton bodies are stacked sequentially on the parting surface of the second molding mold, and the support sheet is placed between the cotton bodies. Using the pressure after the second molding mold is closed, and the temperature provided by the external hot press, the multiple cotton bodies and the support sheet can be hot-pressed together to form the inner core 200.

[0083] Under the constraint of the mold cavity of the second molding mold, the first raw material is hot-pressed and the shape of the prepared inner core 200 is more flexible, which is suitable for the use needs of various shoes. Furthermore, through the design of the parting surface of the second molding mold, the surface of the first raw material can be smoothly transitioned, which meets the use needs of shoe upper preparation.

[0084] After the formed inner core 200 is removed from the second molding mold, the worker can use cutting tools such as a cutter and scissors to cut the upper end of the inner core 200, so that the upper end of the inner core 200 forms a smooth transition, so that the outer sleeve 100 can cover the upper end of the inner core 200 to form the shoe heel counter blank.

[0085] It should be understood that, in some other embodiments, the step of molding the first raw material in step S200 includes the following steps:

[0086] S220, the first raw material is foamed and molded.

[0087] The first raw material is a foaming liquid or foaming particles. The first raw material is placed in a foaming chamber and high-temperature saturated steam is introduced into the foaming chamber. The high enthalpy of the steam is used to provide a temperature environment for the first raw material, causing the first raw material to foam and expand. Under the constraint of the foaming chamber, the first raw material foams to form an inner core 200.

[0088] The inner core 200 prepared has a higher degree of flexibility in shape, which is suitable for the needs of various footwear. Furthermore, through the design of the foaming cavity, the surface of the first raw material can be smoothly transitioned, which meets the needs of the preparation of the shoe upper.

[0089] Understandably, see Figure 1 In this embodiment, step S300 involves cutting the first cut piece 110 and the second cut piece 120, including the following steps:

[0090] S310 provides a first cutting board and a second cutting board, the shapes of the first cutting board and the second cutting board are both adapted to the partial outer contour of the inner core 200.

[0091] S320, the first piece 110 is cut along the shape of the first cutting board, and the second piece 120 is cut along the shape of the second cutting board;

[0092] S330, based on the covering effect of the first cut piece 110 and the second cut piece 120 on the inner core 200, adjust the shape of the first cut piece and the shape of the second cut piece.

[0093] In step S310, the shape of the first and second cutting boards can be determined by the worker covering the inner core 200 with a piece of fabric, outlining the area where the fabric is attached, and then unfolding the fabric.

[0094] Alternatively, users can use 3D software to calculate the surface area of ​​the inner core 200 and its unfolded planar shape, thereby determining the shape and size of the first and second cutting boards.

[0095] In step 320, the worker can stack the first cut piece 110 on the first cutting board and cut the first cut piece 110 along the boundary of the first cutting board so that the cut first cut piece 110 can fit a portion of the outer contour of the inner core 200. The worker can stack the second cut piece 120 on the second cutting board and cut the second cut piece 120 along the boundary of the second cutting board so that the cut second cut piece 120 can fit a portion of the outer contour of the inner core 200.

[0096] In step S330, after the worker wraps the cut first piece 110 and second piece 120 around the inner core 200, the shape of the first piece 110 and the second piece 120 is adjusted in reverse to improve the shape of the first piece 110 and the second piece 120.

[0097] For example, when the first piece 110 covers the inner core 200, if the first piece 110 is relatively tight in the first position, the worker can increase the width of the first cutting board to reduce the tension of the first piece 110 in the first position after cutting, which helps to reduce the pressure of the outer jacket 100 on the inner core 200 in the first position.

[0098] For example, when the first piece 110 covers the inner core 200, the first piece 110 is relatively loose at the second position. The worker can reduce the width of the first piece 110 to increase the tension of the cut first piece 110 at the second position, so as to achieve a full fit between the outer cover 100 and the inner core 200 at the second position, which helps to avoid the problem of wrinkles in the outer cover 100.

[0099] The adjustment method for the second cutting board is the same as that for the first cutting board, and will not be repeated here.

[0100] Understandably, see Figure 2 and Figure 3 In step S300, the first cut piece 110 and the second cut piece 120 are connected to each other to form the outer garment 100, including the following steps:

[0101] S340, overlap the cut edges of the first cut piece 110 and the second cut piece and sew them together, so that an excess edge is generated at the junction of the first cut piece 110 and the second cut piece 120.

[0102] S350, unfold the first piece 110 and the second piece 120 to form the outer garment 100, with the remaining edge on the inside of the outer garment 100.

[0103] In step S340, the first cut piece 110 and the second cut piece 120 can be connected by sewing. After the cut edges of the first cut piece 110 and the second cut piece 120 overlap, the first cut piece 110 and the second cut piece 120 are sewn together by the sewing action of the external sewing machine. An excess edge is generated at the junction of the first cut piece 110 and the second cut piece 120. The connection of the first cut piece 110 and the second cut piece 120 by sewing is conducive to achieving a stable connection between the first cut piece 110 and the second cut piece 120.

[0104] In step S350, the first cut piece 110 and the second cut piece 120 are unfolded to form an outer cover 100, and the outer cover 100 is wrapped around the outer surface of the inner core 200. The excess edge is located on the inner side of the inner core 200 and is hidden inside the outer cover 100. This helps to reduce the impact of the excess edge on the overall appearance of the heel counter and helps to eliminate the protrusion of the heel counter at the excess edge.

[0105] Understandably, see Figure 7 The upper edges of the first cut piece 110 and the second cut piece 120 are connected.

[0106] In step S400, the step of covering the outer shell 100 with the outer shell 100 and adhering the inner surface of the outer shell 100 to the outer surface of the inner core 200 further includes the following steps:

[0107] S410, the second cut piece 120 is attached to the back surface of the inner core 200;

[0108] S420, the first piece 110 is folded forward, covering the upper end and front surface of the inner core 200 and fitting together with the inner core 200.

[0109] In step S410, considering that when a user wears a shoe with this heel counter, the heel mainly contacts the front surface of the heel counter, during manufacturing, the worker can attach the second piece 120 to the rear surface of the inner core 200, and the upper edges of the first piece 110 and the second piece 120 are connected, that is, the junction of the first piece 110 and the second piece 120 is located on the rear surface of the inner core 200. This avoids the problem of the junction of the first piece 110 and the second piece 120 causing rubbing against the human body, and helps to improve the comfort of the user wearing the heel counter made by the manufacturing process of this heel counter.

[0110] In step S420, after the second piece 120 is attached, the worker can fold the first piece 110 forward so that the first piece 110 covers the upper end and front surface of the inner core 200, so that the first piece 110 and the second piece 120 together wrap the inner core 200. That is, the front surface and upper end of the formed shoe heel are both surrounded by the first piece 110, which helps to achieve a smooth transition between the front surface and upper end of the shoe heel, making the formed shoe heel fuller.

[0111] Understandably, see Figure 5 The inner core 200 has a wire groove 220 on its back surface, with the two ends of the wire groove 220 spaced apart on the left and right.

[0112] In step S400, before the second cut piece 120 is attached to the back surface of the inner core 200, the manufacturing process of the shoe heel counter also includes the following steps:

[0113] S430, the junction of the first cut piece 110 and the second cut piece 120 is positioned and fitted with the groove 220.

[0114] Specifically, the rear surface of the inner core 200 is provided with a wire groove 220, that is, the wire groove 220 extends from the left end of the inner core 200 to the right end of the inner core 200, and the two ends of the wire groove 220 are spaced apart from each other, that is, the shape of the wire groove 220 is adapted to the overall shape of the inner core 200.

[0115] During production, workers can position and fit the joint between the first cut piece 110 and the second cut piece 120 along the groove 220. That is, the excess edges of the first cut piece 110 and the second cut piece 120 fit into the groove 220, thereby eliminating the influence of the excess edges on the shape of the shoe back and making the joint between the first cut piece 110 and the second cut piece 120 a smooth transition.

[0116] Then, the worker attaches the second cut piece 120 to the inner core 200, and wraps the upper end and front surface of the first cut piece 110 and the inner core 200. The positioning of the first cut piece 110 and the second cut piece 120 with the groove 220 helps to position the outer jacket 100 and the inner core 200, so that the formed outer jacket 100 and the inner core 200 are wrapped in the preset position to improve the matching degree of the outer jacket 100 and the inner core 200. This ensures that the wrapped outer jacket 100 and the inner core 200 are fully fitted, so as to ensure that the formed shoe heel counter is fuller.

[0117] The joint between the first piece 110 and the second piece 120 is fitted with the groove 220, so that the heel counter of the shoe is smoothly transitioned at the joint between the first piece 110 and the second piece 120, which can avoid the problem of the joint between the two first pieces 110 and the second piece 120 protruding.

[0118] Specifically, the width of the groove 220 gradually decreases from the outside to the inside. That is, the groove 220 is wider at the opening, which facilitates the alignment and fitting of the joint between the first piece 110 and the second piece 120 with the groove 220, thereby reducing the impact of the joint between the first piece 110 and the second piece 120 on the shape of the shoe's heel counter. Conversely, the groove 220 is narrower at the bottom, which helps to achieve a tight fit between the inner core 200 and the outer shell 100, thereby reducing the gap between the outer shell 100 and the inner core 200 and maintaining the structural stability of the shoe's heel counter. Specifically, the vertical cross-section of the groove 220 is V-shaped or U-shaped.

[0119] Understandably, see Figure 8 Hot melt adhesive is sprayed onto both the first cut piece 110 and the second cut piece 120. After the hot melt adhesive melts when heated, it makes the first cut piece 110 and the second cut piece 120 sticky, so as to achieve the bonding and fixation of the first cut piece 110 and the second cut piece 120 with the inner core 200.

[0120] Step S410 includes the following steps:

[0121] S411, Heat the second cut piece 120;

[0122] S412, Position and fit the upper edge of the second piece 120 with the groove 220;

[0123] S413, attach the second piece 120 to the back surface of the inner core 200.

[0124] To gradually achieve the wrapping and bonding of the outer cover 100 to the inner core 200, hot melt adhesive is sprayed onto both the first cut piece 110 and the second cut piece 120. Workers can heat the second cut piece 120 using an external heater, such as a hair dryer, iron, or heating rod. Under the heating action of the heater, the second cut piece 120 becomes sticky, and the upper edge of the second cut piece 120 is positioned and fitted with the groove 220. That is, after fixing the relative positional relationship between the second cut piece 120 and the inner core 200, the worker can press the second cut piece 120 onto the back surface of the inner core 200 by hand to achieve the bonding of the second cut piece 120 and the inner core 200. Through the adhesion of the hot melt adhesive, the bonding and fixation of the second cut piece 120 and the inner core 200 are initially achieved.

[0125] Step S420 includes the following steps:

[0126] S421, fold the first piece 110 forward, so that the first piece 110 covers the upper end and front surface of the inner core 200;

[0127] S422, the first cut piece 110 is heated and pressed at multiple points, and the first cut piece 110 is positioned and attached to the inner core at more than 200 points.

[0128] After the second piece 120 is attached to the inner core 200, the worker can fold the first piece 110 forward so that the first piece 110 covers the upper end and front surface of the inner core 200, thereby wrapping the inner core 200 with the first piece 110. Since the upper edges of the first piece 110 and the second piece 120 are connected, the joint between the first piece 110 and the second piece 120 fits into the groove 220, which helps to eliminate the excess edge generated at the joint between the first piece 110 and the second piece 120 from affecting the shape of the formed shoe heel.

[0129] Then, the worker can use an external heater to heat multiple points on the first piece 110, combined with hand pressure, to achieve multi-point positioning and bonding of the first piece 110 and the inner core 200. This allows the worker to adjust the wrapping position of the first piece 110 and the inner core 200, thus achieving initial bonding and fixation, and assisting in achieving full bonding. Because the first piece 110 has a large covering area and corresponds to the concave and convex shape of the inner core 200, when the worker wraps the first piece 110 around the upper end and front of the inner core 200, multi-point heating and hand pressure can be used to gradually achieve positioning and full bonding of the first piece 110 and the inner core 200 through multi-point positioning.

[0130] Understandably, in order to ensure that the first piece 110 fully wraps around and fits the upper part and front of the inner core 200, and to avoid the problem of the first piece 110 being too tight and causing excessive compression of the inner core 200, or the first piece 110 being too loose and causing wrinkles, the width of the first piece 110 in the front-to-back direction is adapted to the span of the inner core 200 from front to back when the first piece 110 is cut.

[0131] That is, the width of the first piece 110 is relatively large in the area with a large span between the front and back of the inner core 200, and relatively small in the area with a small span between the front and back of the inner core 200. This allows the outer piece 100 to better wrap and fit the inner core 200 when it covers the outer surface of the inner core 200, so as to avoid the problem of the outer piece 100 being too tight or too loose. This allows the shape of the formed shoe heel to retain the shape of the inner core 200 to a greater extent, making the shape of the formed shoe heel fuller.

[0132] Understandably, see Figure 4 and Figure 9 In step S400, the inner surface of the outer jacket 100 is bonded to the outer surface of the inner core 200, and the process further includes the following steps:

[0133] S440, the second piece 120, the inner core 200 and the first piece 110 are placed on the parting surface of the first forming mold;

[0134] S450, the first forming mold closes and heats the second cutting piece 120, the inner core 200 and the first cutting piece 110, and the first cutting piece 110, the second cutting piece 120 and the inner core 200 are connected as one piece.

[0135] After the worker heats the first cut piece 110 and the second cut piece 120 with a heater, the adhesive generated by the hot melt glue is used to initially achieve the bonding and fixation of the first cut piece 110 and the second cut piece 120 with the inner core 200. This is to further achieve a complete bonding and stable connection between the first cut piece 110 and the second cut piece 120 and the inner core 200.

[0136] Workers can place the assembly of the second cut piece 120, the inner core 200, and the first cut piece 110 on the parting surface of the first molding mold. Then, the first molding mold is closed, and the first cut piece 110, the second cut piece 120, and the inner core 200 are heated and kept warm. Under the combined pressure and temperature, the first cut piece 110, the second cut piece 120, and the inner core 200 are hot-pressed together to form a whole, that is, to fix the bonding relationship of the first cut piece 110, the second cut piece 120, and the inner core 200, so as to improve the shape stability of the shoe upper made by applying this shoe upper manufacturing process.

[0137] Understandably, to ensure the shoe's heel counter provides adequate support and wrapping for the body, the manufacturing process of the heel counter includes the following steps:

[0138] The S500 provides two parallel shaping parts;

[0139] S600, remove the inner core 200 and outer casing 100 from the first forming mold;

[0140] S700, the inner core 200 and the outer casing 100 are clamped together between two shaping parts.

[0141] After the worker removes the inner core 200 and outer shell 100 from the first molding mold after hot pressing, the inner core 200 and outer shell 100 are still hot. The worker can clamp the inner core 200 and outer shell 100 together between two shaping parts. By using the squeezing force of the two shaping parts, the inner core 200 and outer shell 100 can maintain an arch shape together, so as to ensure that the formed shoe heel can effectively wrap and support the human body.

[0142] Specifically, the two shaping components can be two parallel flat plates. By limiting the movement of the two flat plates, the heel counter of the shoe is made to form a preset arch shape.

[0143] Understandably, considering that the left and right edges of the heel counter need to connect with the left and right ends of the forefoot to form the shoe opening, and the bottom edge of the heel counter needs to connect with the top of the sole, so that the forefoot, heel counter, and sole together form an inner cavity for the human foot to wear.

[0144] The manufacturing process of the shoe's heel counter also includes the following steps:

[0145] Using cutting tools, the left, right, and bottom edges of the cooled and shaped shoe heel counter blank are cut to form the finished shoe heel counter.

[0146] The first molding die may be provided with boundary protrusions. When the inner core 200 and the outer sleeve 100 are pressed together at the first molding die, boundary grooves are formed on the outer sleeve 100 and the inner core 200. Workers can use cutting tools to cut along the boundary grooves so that the shoe heel counter blank forms a preset shape, thus obtaining the finished shoe heel counter.

[0147] Understandably, specifically, in order to improve the wrapping performance of the molded heel counter on the human heel, the upper end of the inner core 200 is also provided with a bulge 210. The bulge 210 is arched, and that is, the shape of the bulge 210 matches the shape of the inner core 200. When the user wears the shoe with the molded heel counter, the bulge 210 is set around the shoe opening to achieve wrapping of the human heel.

[0148] The rear of the bulge 210 is higher than the front, and its thickness gradually decreases from back to front. The lower front of this molded heel counter helps reduce obstruction and impact on the ankle, while the higher rear provides better heel support and wrapping. The gradually decreasing thickness of the bulge 210 conforms to the shape of the heel, ensuring comprehensive heel coverage, improving user comfort, and reducing the risk of injury during exercise.

[0149] To avoid restricting the human heel at the junction of the first piece 110 and the second piece 120, the groove 220 is located below the bulge 210, that is, the junction of the first piece 110 and the second piece 120 is located below the bulge 210, and the first piece 110 covers the entire outer surface of the bulge 210, so that the heel of the shoe is fuller in the shape of the bulge 210, thereby improving the fit between the bulge 210 and the human heel.

[0150] In Example 2, it is understood that the shoe heel counter provided in this embodiment of the invention is manufactured using the shoe heel counter manufacturing process shown in Example 1.

[0151] The heel counter is manufactured using the heel counter manufacturing process described in Embodiment 1 above. The first raw material is molded to obtain an inner core 200. The inner core 200 serves as the filling material for the heel counter, supporting its shape and providing wrapping and support for the heel. The first cut piece 110 and the second cut piece 120, as part of the outer shell 100, need to respectively cover portions of the inner core 200. Before the outer shell 100 covers the inner core 200, the heel counter manufacturing process involves shaping the first cut piece 110 and the second cut piece 120 according to the outer contour of the inner core 200. The shapes of the first cut piece 110 and the second cut piece 120 are cut so that after the first cut piece 110 and the second cut piece 120 are connected to each other, an outer cover 100 that matches the outer contour of the inner core 200 can be formed. When the outer cover 100 covers the outer surface of the inner core 200, it helps to reduce the compression of the inner core 200 by the outer cover 100, so that the heel counter of the shoe can better maintain the shape of the inner core 200, making the shape of the heel counter of the shoe fuller, and avoiding the problem of excessive compression of the inner core 200 by the outer cover 100.

[0152] According to Embodiment 3, it is understood that the shoe provided according to the embodiments of the present invention includes a forefoot, a sole, and a heel counter as shown in Embodiment 2.

[0153] The back end of the forefoot and the front end of the heel connect to form the shoe opening. The lower ends of both the forefoot and heel connect to the upper end of the sole to form an inner cavity for the human foot to wear.

[0154] The shoe includes a heel counter manufactured using the process described in Example 2. A first raw material is molded to obtain an inner core 200. The inner core 200 serves as the filling material for the heel counter, supporting its shape and providing wrapping and support for the heel. A first cut piece 110 and a second cut piece 120, as part of an outer cover 100, respectively cover portions of the inner core 200. Before the outer cover 100 covers the inner core 200, the heel counter manufacturing process involves shaping the inner core 200 according to its outline. The shapes of the first cut piece 110 and the second cut piece 120 are cut so that after the first cut piece 110 and the second cut piece 120 are connected to each other, an outer cover 100 that matches the outer contour of the inner core 200 can be formed. When the outer cover 100 covers the outer surface of the inner core 200, it helps to reduce the compression of the inner core 200 by the outer cover 100, so that the heel counter of the shoe can better maintain the shape of the inner core 200, making the shape of the heel counter of the shoe fuller, and avoiding the problem of excessive compression of the inner core 200 by the outer cover 100.

[0155] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural transformations made using the contents of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of patent protection of the present invention.

[0156] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The manufacturing process of the shoe heel counter, characterized in that, Includes the following steps: Provide a first raw material, a first cut piece (110), and a second cut piece (120); The first raw material is subjected to molding treatment to obtain the inner core (200); The first piece (110) and the second piece (120) are cut respectively. The shapes of the first piece (110) and the second piece (120) are adapted to the partial outline of the inner core (200). The first piece (110) and the second piece (120) are connected to each other to form the outer cover (100). The upper edges of the first piece (110) and the second piece (120) are connected. Hot melt adhesive is sprayed on both the first piece (110) and the second piece (120). The outer sleeve (100) is wrapped around the outer surface of the inner core (200), and the inner surface of the outer sleeve (100) is attached to the outer surface of the inner core (200) to form a shoe heel counter blank; The process of covering the outer shell (100) of the inner core (200) with the inner surface of the outer shell (100) and adhering to the outer surface of the inner core (200) further includes the following steps: The second cut piece (120) is attached to the rear surface of the inner core (200); Fold the first piece (110) forward, so that the first piece (110) covers the upper end and front surface of the inner core (200) and fits against the inner core (200); The inner core (200) has a groove (220) on its back surface, and the two ends of the groove (220) are spaced apart to the left and right. Before the second cut piece (120) is attached to the rear surface of the inner core (200), the following steps are also included: Position and fit the junction of the first cut piece (110) and the second cut piece (120) with the groove (220); The second cut piece (120) is attached to the rear surface of the inner core (200); the first cut piece (110) is folded forward, covering the upper end and front surface of the inner core (200) and attaching to the inner core (200), including the following steps: Heat the second cut piece (120); Position and fit the upper edge of the second cut piece (120) with the groove (220); The second cut piece (120) is attached to the rear surface of the inner core (200); Fold the first piece (110) forward so that it covers the upper end and front surface of the inner core (200); The first cut piece (110) is heated and pressed at multiple points, and the first cut piece (110) is positioned and attached to the inner core (200) at multiple points; The width of the first cut piece (110) in the front-to-back direction is adapted to the front-to-back span of the inner core (200); The inner core (200) has a bulge (210) at its upper end. The bulge (210) is arched, with the rear end of the bulge (210) being higher than the front end. The thickness of the bulge (210) gradually decreases from back to front. The wire groove (220) is located below the bulge (210), and the first cut piece (110) covers the outer surface of the bulge (210). The first cut piece (110) and the second cut piece (120) are connected to each other to form an outer garment (100), including the following steps: The cut edge of the first cut piece (110) is overlapped with the cut edge of the second cut piece (120) and sewn together, so that an excess edge is generated at the junction of the first cut piece (110) and the second cut piece (120); Unfold the first cut piece (110) and the second cut piece (120) to form an outer garment (100), with the remaining edge located on the inside of the outer garment (100).

2. The manufacturing process of the shoe heel counter according to claim 1, characterized in that, The inner surface of the outer jacket (100) is bonded to the outer surface of the inner core (200), and the process further includes the following steps: The second piece (120), the inner core (200), and the first piece (110) are placed on the parting surface of the first molding die; The first molding mold is closed, and the second cut piece (120), the inner core (200) and the first cut piece (110) are heated, and the first cut piece (110), the second cut piece (120) and the inner core (200) are connected as one unit.

3. The manufacturing process of the shoe heel counter according to claim 2, characterized in that, It also includes the following steps: Provide two parallel shaping parts; Remove the inner core (200) and the outer shell (100) from the first molding mold; The inner core (200) and the outer shell (100) are sandwiched together between the two shaping parts.

4. The manufacturing process of the shoe heel counter according to claim 1, characterized in that, The first raw material is subjected to molding processing, including the following steps: The first raw material is placed on the parting surface of the second molding mold, the second molding mold is closed, and the first raw material is hot-pressed and kept warm. Alternatively, the first raw material can be foamed and molded.

5. The manufacturing process of the shoe heel counter according to claim 1, characterized in that, The first cut piece (110) and the second cut piece (120) are cut respectively, including the following steps: A first cutting board and a second cutting board are provided, the shapes of the first cutting board and the second cutting board being adapted to a portion of the outer contour of the inner core (200); The first piece (110) is cut along the shape of the first cutting board, and the second piece (120) is cut along the shape of the second cutting board; Based on the covering effect of the first cut piece (110) and the second cut piece (120) on the inner core (200), the shape of the first cut piece and the shape of the second cut piece are adjusted.

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