Conformal molding process, footwear accessory, and shoe

Abstract

The application discloses a one-piece forming process, a shoe accessory and a shoe, and belongs to the technical field of shoe accessory production processes, wherein the one-piece forming process comprises the following steps: providing a forming die, a first foaming material, an upper shoe piece and a lower shoe piece, wherein the forming die comprises a first upper die seat and a lower die seat, the first upper die seat is provided with a first upper forming surface and a first sole forming surface, and the lower die seat is provided with a second upper forming surface and a second sole forming surface; the upper shoe piece is attached to the first upper forming surface and the first sole forming surface; the lower shoe piece is attached to the second upper forming surface and the second sole forming surface; the first foaming material is added above the lower shoe piece; the first upper die seat and the lower die seat are closed, the first upper die seat and the lower die seat jointly form a die cavity, and the first foaming material is foamed in the die cavity; after pressure maintaining for a first preset time, the first upper die seat and the lower die seat are separated to obtain a combination of the upper and the sole, and the upper and the sole are integrally formed into a piece, which is beneficial to the integral forming of the upper and the sole.

Description

Technical Field

[0001] This invention relates to the field of footwear accessory manufacturing technology, and particularly to one-piece molding process, footwear accessories, and shoes. Background Technology

[0002] In current shoe manufacturing processes, the sole and upper are molded separately and then joined together by gluing, sewing, and other methods. This can easily lead to a more complex shoe manufacturing process, resulting in poor stability of the connection between the sole and upper. After prolonged wear, problems such as glue separation and loosening of the sewing thread may occur at the connection between the sole and upper. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a one-piece molding process, which enables the upper and sole to be molded as a single unit, thereby improving the connection stability between the upper and sole.

[0004] The present invention also proposes a footwear accessory.

[0005] The present invention also proposes a shoe.

[0006] According to a first aspect of the present invention, a one-piece molding process includes:

[0007] The mold provides a molding die, a first foaming material, an upper shoe piece, and a lower shoe piece. The molding die includes a first upper mold base and a lower mold base. The first upper mold base is provided with a first upper forming surface and a first sole forming surface connected to each other. The lower mold base is provided with a second upper forming surface and a second sole forming surface connected to each other.

[0008] The upper shoe piece is attached to the first upper molding surface and the first sole molding surface;

[0009] The lower shoe piece is attached to the second upper molding surface and the second sole molding surface;

[0010] Add the first foaming material to the top of the lower shoe piece;

[0011] The first upper mold base and the lower mold base are joined together, the first upper forming surface and the second upper forming surface are opposite to each other, and the first sole forming surface and the second sole forming surface are opposite to each other, so as to jointly form a mold cavity, and the first foaming material foams in the mold cavity;

[0012] After the first preset pressure holding time, the first upper mold base and the lower mold base separate to obtain the combination of the shoe upper and the shoe sole.

[0013] According to the one-piece molding process of the present invention, it has at least the following beneficial effects: The first upper mold base is provided with a first upper molding surface and a first sole molding surface, the first upper molding surface and the first sole molding surface are arranged at an angle, and the junction of the first upper molding surface and the first sole molding surface corresponds to the heel of the human foot. Correspondingly, the lower mold base is provided with a second upper molding surface and a second sole molding surface, the second upper molding surface and the second sole molding surface are arranged at an angle, and the junction of the second upper molding surface and the second sole molding surface together forms a groove adapted to the heel of the human foot. During production, the worker can attach the upper shoe piece to the first upper molding surface and the first sole molding surface, and attach the lower shoe piece to the second upper molding surface and the second sole molding surface. Then, a first foaming material can be added to the lower mold base. When the first upper mold base and the lower mold base are connected and the mold is closed, the first upper molding surface and the second sole molding surface... The upper forming surfaces are arranged opposite each other for forming the upper, and the first and second sole forming surfaces are arranged opposite each other for forming the sole. The first upper mold base and the lower mold base together form a mold cavity. The first foaming material is foamed and formed in the mold cavity. Under the expansion of the first foaming material, the upper shoe piece is formed into a shape and structure that matches the first upper forming surface and the first sole forming surface. The lower shoe piece is formed into a shape and structure that matches the second upper forming surface and the second sole forming surface. The first foaming material fills the entire mold cavity. The foamed layer formed by the first foaming material is sandwiched between the upper and lower shoe pieces, so that the formed upper and sole are connected as one piece, that is, the upper and sole are integrally formed. This helps to improve the connection stability between the upper and sole. Compared with the method of making the upper and sole separately and then connecting them, it helps to simplify the shoe manufacturing process and improve production efficiency.

[0014] According to some embodiments of the present invention, both the first upper forming surface and the first sole forming surface are provided with a plurality of first air intake holes;

[0015] The upper shoe piece is attached to the first upper molding surface and the first sole molding surface, including:

[0016] The upper shoe piece is placed against the first upper forming surface and the first sole forming surface, and a vacuum is drawn through the first air intake hole, so that the upper shoe piece is adsorbed onto the first upper forming surface and the first sole forming surface.

[0017] Specifically, in order to maintain the fit between the upper shoe piece and the first upper molding surface and the first sole molding surface, the first upper mold base is provided with multiple first suction holes at both the first upper molding surface and the first sole molding surface. After the upper shoe piece covers the first upper molding surface and the first sole molding surface and comes into contact with them, the worker can use an external pump to perform vacuum treatment on the first suction holes to create negative pressure. The negative pressure can be used to adsorb the upper shoe piece onto the first upper molding surface and the first sole molding surface, which helps to avoid the problem of the upper shoe piece shifting or wrinkling due to the expansion of the first foam material. This one-piece molding process uses negative pressure adsorption combined with foam expansion to make the upper shoe piece form a shape that matches the first sole molding surface and the first upper molding surface, and also helps to improve the surface accuracy of the upper shoe piece molding.

[0018] According to some embodiments of the present invention, the upper shoe piece abuts against the first upper forming surface and the first sole forming surface, including:

[0019] A clamping frame is provided, and the clamping frame has an opening;

[0020] Attach the upper shoe piece to the clamping frame and cover the opening;

[0021] The clamping frame is close to the first upper mold base, and the first upper forming surface and the first sole forming surface pass through the opening and abut against the upper shoe piece, while the upper shoe piece remains taut.

[0022] Considering that the first upper molding surface and the first sole molding surface have concave and convex shapes, when the upper shoe piece is attached to the first upper molding surface and the first sole molding surface, wrinkles are easily generated at the concave and convex shapes, resulting in an uneven surface of the upper or sole after molding. This one-piece molding process also includes a clamping frame, which connects the upper shoe piece to the clamping frame and makes the upper shoe piece cover the opening. Then, the clamping frame is pressed relative to the first upper mold base, so that the first upper molding surface and the first sole molding surface pass through the opening and abut against the upper shoe piece. The clamping frame helps to keep the upper shoe piece in a taut state when it is attached. By utilizing the deformation of the upper shoe piece, the upper shoe piece can form a shape and structure that matches the first upper molding surface and the first sole molding surface.

[0023] According to some embodiments of the present invention, the molding die further includes a first pressure frame, and the first upper mold base is provided with a first annular groove surrounding the first upper molding surface and the first sole molding surface, and the first pressure frame is adapted to the first annular groove;

[0024] The upper shoe piece is abutted against the first upper molding surface and the first sole molding surface, including:

[0025] The upper shoe piece is placed over the first annular groove, and the first pressure frame is fitted into the first annular groove.

[0026] To ensure the upper shoe piece adheres to the first upper molding surface and the first sole molding surface, the molding die also includes a first pressure frame. Correspondingly, the first upper mold base has a first annular groove that fits around the first upper molding surface and the first sole molding surface. During production, the worker can cover the first annular groove, the first upper molding surface, and the first sole molding surface with the upper shoe piece, and then engage the first pressure frame with the first annular groove. This allows the outer edge of the upper shoe piece to be sandwiched between the first pressure frame and the first annular groove, which helps to maintain the fit between the upper shoe piece and the first upper molding surface and the first sole molding surface. This eliminates the need for the worker to constantly press to ensure the upper shoe piece adheres to the first upper mold base. Furthermore, the engagement of the first pressure frame with the first annular groove improves the seal between the upper shoe piece and the first upper molding surface and the first sole molding surface, helping to prevent vacuum leakage between the upper shoe piece and the first upper molding surface or the first sole molding surface.

[0027] According to some embodiments of the present invention, the upper shoe piece abuts against the first upper forming surface and the first sole forming surface, including:

[0028] Provide a bonding element having a bonding surface adapted to the first upper molding surface;

[0029] The upper shoe piece is placed over the first upper molding surface, and the bonding surface of the bonding component is embedded with the first upper molding surface.

[0030] Considering that the first upper molding surface has a greater degree of concavity and convexity compared to the first sole molding surface, it is difficult for the upper shoe piece to fully fit the first upper molding surface. In areas with excessive changes in concavity and convexity, the upper shoe piece is prone to wrinkles. This one-piece molding process also includes a bonding component, which has a bonding surface adapted to the first upper molding surface. During production, the worker can cover the first upper molding surface and the first sole molding surface with the upper shoe piece and press the bonding surface of the bonding component towards the first upper molding surface so that the bonding surface is embedded with the first upper molding surface. The upper shoe piece is placed between the bonding component and the first upper mold base. Through the mutual compression between the bonding component and the first upper mold base, it is beneficial to make the upper shoe piece fit the first upper molding surface and reduce the wrinkles generated on the upper shoe piece at the first upper molding surface.

[0031] According to some embodiments of the present invention, both the second upper forming surface and the second sole forming surface are provided with a plurality of second air intake holes;

[0032] The lower shoe piece is attached to the second upper molding surface and the second sole molding surface, including:

[0033] The lower shoe piece is placed against the second upper forming surface and the second sole forming surface, and a vacuum is drawn through the second air intake. The lower shoe piece is then adsorbed onto the second upper forming surface and the second sole forming surface.

[0034] Specifically, to ensure the fit between the lower shoe piece and the second upper and second sole molding surfaces, the lower mold base is equipped with multiple second suction holes at both the second upper and sole molding surfaces. After the lower shoe piece covers the second upper and sole molding surfaces and comes into contact with them, the worker can use an external pump to create a vacuum at the second suction holes, thus forming a negative pressure. This negative pressure allows the lower shoe piece to be adsorbed onto the second upper and sole molding surfaces, preventing the lower shoe piece from shifting or shrinking due to the expansion of the second foam material. This integrated molding process, through negative pressure adsorption combined with foam expansion, allows the lower shoe piece to form a shape that matches the second sole and upper molding surfaces, and also improves the surface precision of the lower shoe piece molding.

[0035] According to some embodiments of the present invention, the lower shoe piece includes a sole support piece and an upper support piece;

[0036] The lower shoe piece is abutted against the second upper molding surface and the second sole molding surface, including:

[0037] Place the upper panel corresponding to the second upper forming surface, and place the sole panel corresponding to the second sole forming surface. The rear edge of the sole panel is connected to the lower edge of the upper panel.

[0038] The lower mold base is set as a concave mold. In order to achieve the bonding of the lower shoe piece with the second sole forming surface and the second upper forming surface, the lower shoe piece can be formed in two parts. The lower shoe piece includes a sole sheath and an upper sheath. The upper sheath is set to correspond to the upper. During production, the upper sheath is placed to correspond to the second upper forming surface, which helps to improve the fit between the upper sheath and the second upper forming surface and facilitates the bonding between them. The sole sheath is placed to correspond to the second sole forming surface, which helps to improve the fit between the sole sheath and the second sole forming surface and facilitates the bonding between them. Moreover, the rear edge of the sole sheath is connected to the lower edge of the upper sheath. Under the foaming and expansion effect of the first foaming material, the sole sheath and the upper sheath are connected as one, which helps to improve the connection stability between the sole sheath and the upper sheath and helps to avoid the problem of vacuum leakage or glue leakage at the junction of the sole sheath and the upper sheath.

[0039] According to some embodiments of the present invention, the shoe upper panel has a recessed three-dimensional shape; and / or,

[0040] The shoe upper panel is made by sewing.

[0041] Optionally, the upper panel has a recessed three-dimensional shape. The upper panel is made according to the shape of the second upper forming surface. The upper panel is placed corresponding to the second upper forming surface, which helps to improve the fit between the upper panel and the second upper forming surface and facilitates the fitting of the upper panel and the second upper forming surface. Optionally, the upper panel can be made by sewing, so that the upper panel forms a preset three-dimensional shape to improve the fit and connection between the upper panel and the second upper forming surface.

[0042] According to some embodiments of the present invention, the molding die further includes a second pressure frame, and the lower mold base is provided with a second annular groove surrounding the second upper molding surface and the second sole molding surface, and the second pressure frame is adapted to the second annular groove;

[0043] The lower shoe piece is abutted against the second upper molding surface and the second sole molding surface, including:

[0044] The lower shoe piece is placed over the second annular groove, and the second pressure frame is fitted into the second annular groove.

[0045] To ensure the lower shoe piece adheres to the second upper molding surface and the second sole molding surface, the molding die also includes a second pressure frame. Correspondingly, the second upper mold base has a second annular groove that fits around the second upper molding surface and the second sole molding surface. During production, the worker can cover the second annular groove, the second upper molding surface, and the second sole molding surface with the lower shoe piece, and then engage the second pressure frame with the second annular groove. This allows the outer edge of the lower shoe piece to be sandwiched between the second pressure frame and the second annular groove, which helps to maintain the fit between the lower shoe piece and the second upper molding surface and the second sole molding surface. This eliminates the need for the worker to constantly press to ensure the lower shoe piece adheres to the lower mold base. Furthermore, the engagement of the second pressure frame with the second annular groove improves the seal between the lower shoe piece and the second upper molding surface and the second sole molding surface, helping to prevent vacuum leakage between the lower shoe piece and either the second upper molding surface or the second sole molding surface.

[0046] According to some embodiments of the present invention, the molding die further includes a second upper mold base, the second upper mold base including a third upper molding surface and a third sole molding surface connected to each other;

[0047] The one-piece molding process, before adding the first foam material above the lower shoe piece, also includes:

[0048] Provide a second foam material and add it above the lower shoe piece;

[0049] The second upper mold base and the lower mold base are joined together, the third upper forming surface is opposite to the second upper forming surface, and the third sole forming surface is opposite to the second sole forming surface, so as to jointly surround the forming cavity, and the second foaming material foams in the cavity;

[0050] After the second preset pressure holding time, the second upper mold base separates from the lower mold base.

[0051] To modify the support and wrapping performance of the upper or sole for the human body, the molding mold also includes a second upper mold base. The second upper mold base has a third upper molding surface and a third sole molding surface connected to each other. This one-piece molding process can use multiple foaming to prepare the combination of upper and sole, so that the combination forms a sandwich with different softness and hardness. Specifically, the worker attaches the upper shoe piece to the upper mold base and the lower shoe piece to the lower mold base. The worker can then add the second foaming material above the lower shoe piece and close the second upper mold base and the lower mold base together to form a molding cavity. The second foaming material foams and forms in the cavity. Under the expansion of the second foaming material, a lower adhesive layer is formed above the lower shoe piece. Then, by changing the first upper mold base and the lower mold base to close the mold, and cooperating with the foaming of the first foaming material, an upper adhesive layer with different hardness is formed above the lower adhesive layer. The upper adhesive layer and the lower adhesive layer are sandwiched between the upper shoe piece and the lower shoe piece in sequence.

[0052] According to a second aspect of the present invention, the footwear accessory is manufactured using a one-piece molding process as described in any of the first aspects.

[0053] According to the embodiments of the present invention, the footwear accessories have at least the following beneficial effects: A first upper mold base is provided with a first upper forming surface and a first sole forming surface, the first upper forming surface and the first sole forming surface are arranged at an angle, and the junction of the first upper forming surface and the first sole forming surface corresponds to the heel of the human foot. Correspondingly, a lower mold base is provided with a second upper forming surface and a second sole forming surface, the second upper forming surface and the second sole forming surface are arranged at an angle, and the junction of the second upper forming surface and the second sole forming surface together forms a groove adapted to the heel of the human foot. During production, workers can attach the upper shoe piece to the first upper forming surface and the first sole forming surface, and attach the lower shoe piece to the second upper forming surface and the second sole forming surface. Then, a first foaming material can be added to the lower mold base. When the first upper mold base and the lower mold base are connected and the mold is closed, the first upper forming surface and the second sole forming surface form a groove that corresponds to the heel of the human foot. The upper and lower mold surfaces are arranged opposite each other to form the upper. The first and second sole mold surfaces are arranged opposite each other to form the sole. The first upper mold base and the lower mold base together form a mold cavity. The first foam material is foamed and formed in the mold cavity. Under the expansion of the first foam material, the upper shoe piece is formed to match the shape and structure of the first upper and the first sole mold surfaces. The lower shoe piece is formed to match the shape and structure of the second upper and the second sole mold surfaces. The first foam material fills the entire mold cavity. The foam layer formed by the first foam material is sandwiched between the upper and the lower shoe pieces, so that the formed upper and the sole are connected as one piece. That is, the upper and sole are integrally molded parts, which helps to improve the connection stability between the upper and the sole. Compared with the method of making the upper and the sole separately and then connecting them, it helps to simplify the shoe manufacturing process and improve production efficiency.

[0054] The shoes according to a third aspect of the present invention include the footwear accessories shown in the second aspect.

[0055] The shoes according to embodiments of the present invention have at least the following beneficial effects: A first upper mold base is provided with a first upper forming surface and a first sole forming surface, the first upper forming surface and the first sole forming surface are arranged at an angle, and the junction of the first upper forming surface and the first sole forming surface corresponds to the heel of the human foot. Correspondingly, a lower mold base is provided with a second upper forming surface and a second sole forming surface, the second upper forming surface and the second sole forming surface are arranged at an angle, and the junction of the second upper forming surface and the second sole forming surface together forms a groove adapted to the heel of the human foot. During production, workers can attach the upper shoe piece to the first upper forming surface and the first sole forming surface, and attach the lower shoe piece to the second upper forming surface and the second sole forming surface. Then, a first foaming material can be added to the lower mold base. When the first upper mold base and the lower mold base are connected and the mold is closed, the first upper forming surface and the second upper forming surface... The molding surfaces are arranged opposite each other for molding the upper, and the first and second sole molding surfaces are arranged opposite each other for forming the sole. The first upper mold base and the lower mold base together form a mold cavity. The first foaming material is foamed and molded in the mold cavity. Under the expansion of the first foaming material, the upper shoe piece is formed to match the shape and structure of the first upper molding surface and the first sole molding surface, and the lower shoe piece is formed to match the shape and structure of the second upper molding surface and the second sole molding surface. The first foaming material fills the entire mold cavity. The foam layer formed by the first foaming material is sandwiched between the upper and lower shoe pieces, so that the molded upper and sole are connected as one piece, that is, the upper and sole are integrally molded parts. This is beneficial to improve the connection stability between the upper and sole. Compared with the method of making the upper and sole separately and then connecting them, it is beneficial to simplify the shoe manufacturing process and improve production efficiency.

[0056] 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

[0057] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0058] Figure 1 This is a schematic diagram of the structure of a combined body using a one-piece molding process according to an embodiment of the present invention;

[0059] Figure 2 This is a schematic diagram of the structure of an assembly formed by a one-piece molding process according to an embodiment of the present invention from another perspective.

[0060] Figure 3 This is a schematic diagram of the molding die in the integral molding process of an embodiment of the present invention, showing the structure of the mold when the first upper mold base and the lower mold base are closed.

[0061] Figure 4 This is a schematic diagram of the lower mold base in a one-piece molding process according to an embodiment of the present invention;

[0062] Figure 5 This is a schematic diagram of the structure in which the lower mold base and the second pressure frame are separated in a one-piece molding process according to an embodiment of the present invention;

[0063] Figure 6 This is a schematic diagram of the structure of the shoe upper panel in a one-piece molding process according to an embodiment of the present invention;

[0064] Figure 7 This is a schematic diagram of the shoe upper and sole panels placed on the lower mold base in a one-piece molding process according to an embodiment of the present invention.

[0065] Figure 8 This is a schematic diagram of the structure of the first upper mold base in a one-piece molding process according to an embodiment of the present invention;

[0066] Figure 9 This is a flowchart of a one-piece molding process according to an embodiment of the present invention;

[0067] Figure 10 This is a flowchart of a one-piece molding process according to an embodiment of the present invention;

[0068] Figure 11 This is a flowchart of a one-piece molding process according to an embodiment of the present invention;

[0069] Figure 12 This is a flowchart of a one-piece molding process according to an embodiment of the present invention;

[0070] Figure 13 This is a flowchart of a one-piece molding process according to an embodiment of the present invention;

[0071] Figure 14 This is a flowchart of a one-piece molding process according to an embodiment of the present invention;

[0072] Figure 15 This is a flowchart of a one-piece molding process according to an embodiment of the present invention;

[0073] Figure 16 This is a flowchart of a one-piece molding process according to an embodiment of the present invention;

[0074] Figure 17 This is a flowchart of a one-piece molding process according to an embodiment of the present invention.

[0075] Icon labels:

[0076] 100. First upper mold base; 110. First sole forming surface; 120. First upper forming surface; 121. Recess; 130. Protrusion; 140. First gas flow channel; 150. Upper bonding surface; 160. First annular groove; 170. Upper limit part;

[0077] 200, Lower mold base; 210, Second sole forming surface; 220, Second upper forming surface; 221, Textured part; 230, Groove; 240, Second gas flow channel; 250, Lower bonding surface; 260, Second annular groove; 270, Lower limiting part;

[0078] 300. First pressing frame;

[0079] 400. Second pressing frame;

[0080] 500, Combined piece; 510, Shoe sole panel; 520, Shoe upper panel. Detailed Implementation

[0081] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0082] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0083] In the description of this invention, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or their sequential relationship.

[0084] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0085] Reference Figures 1 to 17 As shown, an embodiment of the one-piece molding process of the present invention includes the following steps:

[0086] Step S100: Provide a molding die, a first foaming material, an upper shoe piece and a lower shoe piece. The molding die includes a first upper mold base 100 and a lower mold base 200. The first upper mold base 100 is provided with a first upper molding surface 120 and a first sole molding surface 110 connected to each other. The lower mold base 200 is provided with a second upper molding surface 220 and a second sole molding surface 210 connected to each other.

[0087] Step S200: The upper shoe piece is attached to the first upper forming surface 120 and the first sole forming surface 110;

[0088] Step S300: The lower shoe piece is attached to the second upper forming surface 220 and the second sole forming surface 210;

[0089] Step S400: Add the first foam material to the top of the lower shoe piece;

[0090] In step S500, the first upper mold base 100 and the lower mold base 200 are closed, the first upper forming surface 120 and the second upper forming surface 220 are opposite to each other, and the first sole forming surface 110 and the second sole forming surface 210 are opposite to each other to form a mold cavity, and the first foaming material foams in the mold cavity.

[0091] In step S600, after holding the pressure for a first preset time, the first upper mold base 100 and the lower mold base 200 separate to obtain the combination of the shoe upper and the shoe sole 500.

[0092] Reference Figure 3 , Figure 4 , Figure 5 and Figure 8 As shown, it can be understood that in step S100, the forming mold includes a first upper mold base 100 and a lower mold base 200. The first upper mold base 100 is a punch, and the lower mold base 200 is a die. The lower surface of the first upper mold base 100 is a parting surface, and the upper surface of the lower mold base 200 is a parting surface.

[0093] The lower surface of the first upper mold base 100 includes a first upper forming surface 120 and a first sole forming surface 110. The first upper forming surface 120 is located behind the first sole forming surface 110, and the first upper forming surface 120 and the first sole forming surface 110 are arranged at an angle. The junction of the first upper forming surface 120 and the first sole forming surface 110 together forms a protrusion 130 that fits the human heel. Specifically, the first upper forming surface 120 is arched to wrap and support the human heel, and the first sole forming surface 110 is flat to fit the sole of the human foot.

[0094] Reference Figure 4 and Figure 5As shown, the upper surface of the adaptable lower mold base 200 includes a second upper forming surface 220 and a second sole forming surface 210. The second upper forming surface 220 is located behind the second sole forming surface 210, and the second upper forming surface 220 and the second sole forming surface 210 are arranged at an angle. The junction of the second upper forming surface 220 and the second sole forming surface 210 together forms a groove 230 that fits the human heel, and the shape of the groove 230 matches the shape of the protrusion 130. Specifically, the second upper forming surface 220 is arched to wrap and support the human heel, and the second sole forming surface 210 is flat to fit the human foot.

[0095] Reference Figure 8 As shown, it can be understood that in step S100, the first upper forming surface 120 and the first sole forming surface 110 are provided with a plurality of first air intake holes, and the first upper mold base 100 is provided with a first gas flow channel 140. The first air intake holes located on the first upper forming surface 120 and the first sole forming surface 110 are connected to the first gas flow channel 140.

[0096] Multiple first air intake holes are densely distributed on the first upper molding surface 120 and the first sole molding surface 110. Each of the multiple first air intake holes is connected to one end of the first gas flow channel 140. The other end of the first gas flow channel 140 is the first air extraction port. The user can connect the external pump body to the first air extraction port through a hose. Under the pressure change action of the pump body, a negative pressure is generated at the first air intake hole.

[0097] Reference Figure 10 As shown, it can be understood that in step S200, attaching the upper shoe piece to the first upper forming surface 120 and the first sole forming surface 110 includes the following steps:

[0098] In step S210, the upper shoe piece is placed against the first upper forming surface 120 and the first sole forming surface 110, and a vacuum is drawn through the first air intake hole, so that the upper shoe piece is adsorbed onto the first upper forming surface 120 and the first sole forming surface 110.

[0099] Reference Figure 8As shown, specifically, in order to maintain the fit between the upper shoe piece and the first upper forming surface 120 and the first sole forming surface 110, the first upper mold base 100 is provided with multiple first suction holes at the first upper forming surface 120 and the first sole forming surface 110. After the upper shoe piece covers the first upper forming surface 120 and the first sole forming surface 110 and abuts against the first upper forming surface 120 and the first sole forming surface 110, the worker can use an external pump to perform vacuum treatment on the first gas flow channel 140 so that a negative pressure is formed at the first suction hole. The negative pressure can be used to adsorb the upper shoe piece at the first upper forming surface 120 and the first sole forming surface 110, which helps to avoid the problem of the upper shoe piece shifting or wrinkling under the expansion of the first foam material. This one-piece molding process uses negative pressure adsorption combined with foam expansion to make the upper shoe piece form a shape that matches the first sole forming surface 110 and the first upper forming surface 120, and also helps to improve the surface accuracy of the upper shoe piece molding. The sole and upper share the same upper piece, which fits snugly against the heel and sole of the foot, reducing friction and improving comfort.

[0100] Reference Figure 11 As shown, it can be understood that in step S210, the process of abutting the upper shoe piece against the first upper forming surface 120 and the first sole forming surface 110 also includes the following steps:

[0101] Step S211: Provide a clamping frame, the clamping frame having an opening;

[0102] Step S212: Attach the upper shoe piece to the clamping frame and cover the opening;

[0103] In step S213, the clamping frame moves closer to the first upper mold base 100, and the first upper forming surface 120 and the first sole forming surface 110 pass through the opening and abut against the upper shoe piece, while the upper shoe piece remains taut.

[0104] In step S211, the clamping frame includes a first frame and a second frame. The first frame and the second frame are rotatably connected, and both the first frame and the second frame are provided with openings. The first frame and the second frame can be unfolded or overlapped relative to each other. When the first frame and the second frame overlap, the opening of the first frame overlaps with the opening of the second frame.

[0105] In step S212, during production, the worker can unfold the first frame and the second frame, and place the upper shoe piece on one of the first frame and the second frame. Then, by rotating the other of the first frame and the second frame, the upper shoe piece is clamped between the first frame and the second frame. The clamping of the first frame and the second frame helps to cover the opening, and the upper shoe piece is in a taut state. This helps to avoid the problem that the upper shoe piece cannot fully fit the first upper forming surface 120 or the first sole forming surface 110 when it comes into contact with the first upper forming surface 120 or the first sole forming surface 110.

[0106] In step S213, after the upper shoe piece is clamped between the first frame and the second frame, the user can align the opening of the clamping frame with the first upper forming surface 120 and the first sole forming surface 110, and apply pressure to the clamping frame toward the first upper mold base 100 so that the clamping frame moves toward the first upper mold base 100, and the first upper forming surface 120 and the first sole forming surface 110 pass through the opening and abut against the upper shoe piece.

[0107] Considering that the first upper forming surface 120 and the first sole forming surface 110 have concave and convex shapes, when the upper shoe piece is attached to the first upper forming surface 120 and the first sole forming surface 110, wrinkles are easily generated at the concave and convex shapes, resulting in an uneven surface of the upper or sole after molding. The one-piece molding process also includes a clamping frame, which connects the upper shoe piece to the clamping frame and makes the upper shoe piece cover the opening. Then, the clamping frame is pressed relative to the first upper mold base 100, so that the first upper forming surface 120 and the first sole forming surface 110 pass through the opening and abut against the upper shoe piece. The clamping frame helps to keep the upper shoe piece in a taut state when it is attached. By utilizing the deformation of the upper shoe piece, the upper shoe piece can form a shape and structure that matches the first upper forming surface 120 and the first sole forming surface 110.

[0108] In another embodiment, the clamping frame is provided with multiple positioning pins arranged around the opening. During use, the worker can pass the upper shoe piece through the positioning pins to connect it to the clamping frame and cover the opening. The positioning pins help to fix the relative position of the upper shoe piece and the clamping frame. Then, the worker can align the positioning pins towards the first upper mold base 100, making the opening of the clamping frame aligned with the first upper forming surface 120 and the first sole forming surface 110. Pressure is applied to the clamping frame towards the first upper mold base 100, causing the clamping frame to move closer to the first upper mold base 100. After passing through the opening, the first upper forming surface 120 and the first sole forming surface 110 abut against the upper shoe piece. Under the limiting effect of the positioning pins, the upper shoe piece remains taut, which helps to achieve a complete fit between the upper shoe piece and the first upper forming surface 120 or the first sole forming surface 110.

[0109] Reference Figure 8 and Figure 12 As shown, it can be understood that the molding die also includes a first pressure frame 300, and the first upper mold base 100 is provided with a first annular groove 160 surrounding the first upper molding surface 120 and the first sole molding surface 110. The first pressure frame 300 is adapted to the first annular groove 160.

[0110] In step S210, the upper shoe piece is abutted against the first upper forming surface 120 and the first sole forming surface 110, and the following steps are also included:

[0111] Step S214: Cover the first annular groove 160 with the upper shoe piece and fit the first pressing frame 300 into the first annular groove 160.

[0112] To ensure the upper shoe piece adheres tightly to the first sole molding surface 110 and the first upper molding surface 120, and to prevent wrinkles from forming on the first upper molding surface 120 and the first sole molding surface 110 due to the vacuum effect of the first gas flow channel 140, the molding mold also includes a first pressure frame 300, and a first upper mold base 100 with a first annular groove 160 on the outer side of the first upper molding surface 120 and the first sole molding surface 110.

[0113] After the upper shoe piece covers the first sole molding surface 110 and the first upper molding surface 120, the user can embed the first pressure frame 300 into the first annular groove 160, so that the outer edge of the upper shoe piece is clamped in the first pressure frame 300 and the first annular groove 160. This helps to tighten the upper shoe piece and fit it with the first upper molding surface 120 and the first sole molding surface 110. With the expansion of the first foam material, a suitable surface shape is formed for the first upper molding surface 120 and the first sole molding surface 110. This can effectively reduce the wrinkles generated after the upper shoe piece is formed, ensuring that the upper and sole have a smooth transition with the human body. Furthermore, the embedding of the first pressure frame 300 and the first annular groove 160 helps to fix the upper shoe piece at the first upper mold base 100, which helps to fix the fit between the upper shoe piece and the first upper molding surface 120 and the first sole molding surface 110. There is no need for the worker to press the upper shoe piece to fit the first upper mold base 100 at all times.

[0114] Reference Figure 13 As shown, it can be understood that in step S210, the process of abutting the upper shoe piece against the first upper forming surface 120 and the first sole forming surface 110 also includes the following steps:

[0115] Step S215, providing a bonding component having a bonding surface adapted to the first upper molding surface 120;

[0116] Step S216: Cover the upper shoe piece onto the first upper forming surface 120, and the bonding surface of the bonding piece is embedded with the first upper forming surface 120.

[0117] Compared to the first sole molding surface 110, the first upper molding surface 120 has a greater degree of concavity and convexity, making it difficult for the upper shoe piece to fully fit the first upper molding surface 120. In areas with excessive changes in concavity and convexity, the upper shoe piece is prone to wrinkles. The one-piece molding process also includes a bonding component, which has a bonding surface that is adapted to the first upper molding surface 120.

[0118] Reference Figure 1 and Figure 8 As shown, during production, the worker can cover the first upper forming surface 120 and the first sole forming surface 110 with the upper shoe piece, and press the bonding surface of the bonding component toward the first upper forming surface 120 so that the bonding surface is embedded with the first upper forming surface 120. The upper shoe piece is placed between the bonding component and the first upper mold base 100. Through the mutual compression between the bonding component and the first upper mold base 100, it is beneficial to make the upper shoe piece fit with the first upper mold base 100 and reduce the wrinkles generated on the upper shoe piece at the first upper forming surface 120.

[0119] Understandably, the molding die also includes a second lower mold base, which has a fourth upper molding surface and a fourth sole molding surface connected to each other. The fitting component can be the second lower mold base. The fourth upper molding surface is adapted to the first upper molding surface 120, and the fourth sole molding surface is adapted to the first sole molding surface 110.

[0120] In use, the worker can first connect the upper shoe piece to the clamping frame and move the clamping frame closer to the first upper mold base 100 so that the first upper forming surface 120 and the first sole forming surface 110 pass through the opening and abut against the upper shoe piece. Then, the first pressing frame 300 can pass through the opening and press the upper shoe piece tightly into the first annular groove 160 to maintain the fit between the upper shoe piece and the first upper mold base 100. Then, the second lower mold base passes through the opening and aligns with the first upper mold base 100. Under the mutual compression of the second lower mold base and the first upper mold base 100, it is beneficial to make the upper shoe piece fit with the first upper mold base 100 and reduce the wrinkles generated on the upper shoe piece at the first upper forming surface 120 or the first sole forming surface 110. This is beneficial to make the upper shoe piece fit fully with the first upper forming surface 120 or the first sole forming surface 110. Then, by vacuuming, the gap between the upper shoe piece and the first upper forming surface 120 or the first sole forming surface 110 can be eliminated, and the upper shoe piece can be adsorbed on the first upper mold base 100 to maintain the fit between the upper shoe piece and the first upper mold base 100. This is beneficial to achieve full fit between the upper shoe piece and the first upper forming surface 120 and the first sole forming surface 110.

[0121] Reference Figure 4 and Figure 5 As shown, it can be understood that in step S100, the second upper forming surface 220 and the second sole forming surface 210 are both provided with a plurality of second air intake holes, and the lower mold base 200 is provided with a second gas flow channel 240. The second air intake holes located on the second upper forming surface 220 and the second sole forming surface 210 are connected to the second gas flow channel 240.

[0122] Multiple second air intake holes are densely distributed on the second upper molding surface 220 and the second sole molding surface 210. Each of the multiple second air intake holes is connected to one end of the second gas flow channel 240. The other end of the second gas flow channel 240 is a second air extraction port. The user can connect the external pump body to the second air extraction port through a hose. Under the pressure change action of the pump body, negative pressure is generated at the second air intake holes located on the second upper molding surface 220 and the second sole molding surface 210.

[0123] In use, workers can cover the lower shoe piece with the second upper forming surface 220 and the second sole forming surface 210, and by evacuating the second gas flow channel 240, the lower shoe piece is made to fit tightly against the second upper forming surface 220 and the second sole forming surface 210. This helps to avoid the problem of the lower shoe piece shifting or wrinkling under the expansion of the first foam material. In addition, the expansion of the first foam material helps to form a surface shape that matches the second upper forming surface 220 and the second sole forming surface 210, which helps to improve the accuracy of the formed surface shape.

[0124] Reference Figure 14 As shown, it can be understood that in step S300, attaching the lower shoe piece to the second upper forming surface 220 and the second sole forming surface 210 includes the following steps:

[0125] In step S310, the lower shoe piece is placed against the second upper forming surface 220 and the second sole forming surface 210, and a vacuum is drawn through the second air suction hole, so that the lower shoe piece is adsorbed onto the second upper forming surface 220 and the second sole forming surface 210.

[0126] Specifically, in order to maintain the fit between the lower shoe piece and the second upper molding surface 220 and the second sole molding surface 210, the lower mold base 200 is provided with multiple second suction holes at both the second upper molding surface 220 and the second sole molding surface 210. After the lower shoe piece covers the second upper molding surface 220 and the second sole molding surface 210 and comes into contact with them, the worker can use an external pump to vacuum the second gas flow channel 240 to create a negative pressure at the second suction holes. The negative pressure can be used to adsorb the lower shoe piece onto the second upper molding surface 220 and the second sole molding surface 210, which helps to avoid the problem of the lower shoe piece shifting or wrinkling due to the expansion of the first foam material. This one-piece molding process uses negative pressure adsorption combined with foam expansion to make the lower shoe piece form a shape that matches the second sole molding surface 210 and the second upper molding surface 220, and also helps to improve the surface accuracy of the lower shoe piece molding. The lower shoe piece covers the lower surface of the sole and the outer surface of the upper, which helps to enhance the connection stability and integrity between the sole and the upper, so as to achieve wrapping and support for the human foot.

[0127] Reference Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, it can be understood that the lower shoe piece includes the sole panel 510 and the upper panel 520. (Refer to...) Figure 15 As shown, in step S310, the lower shoe piece abuts against the second upper forming surface 220 and the second sole forming surface 210, including:

[0128] In step S311, the upper panel 520 is placed corresponding to the second upper forming surface 220, and the sole panel 510 is placed corresponding to the second sole forming surface 210. The rear edge of the sole panel 510 is connected to the lower edge of the upper panel 520.

[0129] The lower mold base 200 is a concave mold. To achieve the fit between the lower shoe piece and the second sole forming surface 210 and the second upper forming surface 220, the lower shoe piece can be formed in two parts. The lower shoe piece includes a sole support piece 510 and an upper support piece 520. The upper support piece 520 is positioned corresponding to the upper. During production, the upper support piece 520 is placed corresponding to the second upper forming surface 220, which helps improve the fit between the upper support piece 520 and the second upper forming surface 220 and facilitates the fit between them. The sole support piece 510 corresponds to the second sole forming surface 220. The placement of the 10-inch plate improves the fit between the sole panel 510 and the second sole molding surface 210, and facilitates the bonding between the sole panel 510 and the second sole molding surface 210. Furthermore, the rear edge of the sole panel 510 overlaps with the lower end of the upper panel 520. Under the foaming and expansion effect of the first foaming material, the sole panel 510 and the upper panel 520 are connected as one unit, which improves the connection stability between the sole panel 510 and the upper panel 520, and helps to avoid the problem of vacuum leakage or glue leakage at the junction of the sole panel 510 and the upper panel 520.

[0130] Reference Figure 1 , Figure 2 and Figure 6 As shown, it can be understood that the upper panel 520 has a concave three-dimensional shape. The upper panel 520 is made according to the shape of the second upper forming surface 220. The upper panel 520 is placed corresponding to the second upper forming surface 220, which helps to improve the fit between the upper panel 520 and the second upper forming surface 220 and facilitates the fitting of the upper panel 520 and the second upper forming surface 220.

[0131] Reference Figure 6 and Figure 7 As shown, optionally, the upper panel 520 can be formed by sewing. Workers can use fabric sewing technology, for example, cut notches into a flat piece of fabric, and then sew the two sides of the notches together to form a whole, so that the flat piece of fabric has a concave three-dimensional shape to form the upper panel 520. This helps to improve the fit between the upper panel 520 and the second upper forming surface 220, so as to achieve a full fit between the upper panel 520 and the second upper forming surface 220.

[0132] In another embodiment, the upper panel 520 and the sole panel 510 are made of the same sheet material. By sewing the upper panel 520, the upper panel 520 can be formed into a three-dimensional shape, while the sole panel 510 remains flat.

[0133] Reference Figure 16As shown, it can be understood that in this embodiment, the molding die also includes a second pressure frame 400, and the lower mold base 200 is provided with a second annular groove 260 surrounding the second upper molding surface 220 and the second sole molding surface 210. The second pressure frame 400 is adapted to the second annular groove 260.

[0134] In step S310, the lower shoe piece is abutted against the second upper forming surface 220 and the second sole forming surface 210, and the following steps are also included:

[0135] In step S312, the lower shoe piece is covered by the second annular groove 260, and the second pressing frame 400 is fitted into the second annular groove 260.

[0136] Reference Figure 3 , Figure 4 and Figure 5 As shown, in order to ensure that the lower shoe piece fits snugly against the second upper forming surface 220 and the second sole forming surface 210, the molding die also includes a second pressure frame 400. Correspondingly, the lower mold base 200 is provided with a second annular groove 260 that fits around the second upper forming surface 220 and the second sole forming surface 210. During production, the worker can cover the second annular groove 260, the second upper forming surface 220, and the second sole forming surface 210 with the lower shoe piece, and then fit the second pressure frame 400 into the second annular groove 260 so that the outer edge of the lower shoe piece is clamped against the second upper forming surface 220 and the second sole forming surface 210. The second annular groove 260 and the second pressure frame 400 help to fix the lower shoe piece to the second upper forming surface 220 and the second sole forming surface 210, eliminating the need for workers to constantly press to ensure the lower shoe piece is in contact with the lower mold base 200. Furthermore, the engagement of the second pressure frame 400 and the second annular groove 260 helps to improve the sealing between the lower shoe piece and the second upper forming surface 220 and the second sole forming surface 210, thus preventing vacuum leakage between the lower shoe piece and the second upper forming surface 220 or the second sole forming surface 210.

[0137] Specifically, after the worker places the upper panel 520 corresponding to the second upper forming surface 220, the upper edge of the upper panel 520 can be folded outward so that the upper panel 520 partially covers the second annular groove 260. Then, the second pressing frame 400 is fitted into the second annular groove 260 to initially fix the relative position of the upper panel 520 on the lower mold base 200. Then, by vacuuming the second air suction hole, the upper panel 520 can be made to fit with the second upper forming surface 220. After adjusting the relative relationship between the upper panel 520 and the second upper forming surface 220, the sole panel 510 can be placed corresponding to the second sole forming surface 210, and the rear edge of the sole panel 510 overlaps and fits with the lower edge of the upper panel 520, so that the upper panel 520 and the sole panel 510 together form the lower shoe panel.

[0138] Understandably, when the first foaming material is foamed and formed in the mold cavity, and the first upper mold base 100 and the lower mold base 200 are separated, the worker can use an external pump to blow air out of the first and second air intake holes. That is, air is blown out from both the first and second air intake holes to help separate the upper shoe piece from the first upper forming surface 120 and the first sole forming surface 110, as well as the lower shoe piece from the second upper forming surface 220 and the second sole forming surface 210. This helps to avoid the problem of damage to the assembly 500 caused by pulling the assembly 500 during demolding and improves the demolding efficiency of the assembly 500. This one-piece molding process uses vacuuming to allow the upper shoe piece to adhere to the first upper molding surface 120 and the first sole molding surface 110, and the lower shoe piece to adhere to the second upper molding surface 220 and the second sole molding surface 210, thereby improving the surface molding accuracy of the assembly 500. By blowing air, it is beneficial to separate the molded assembly 500 from the first upper mold base 100 and the lower mold base 200, and maintain the integrity of the assembly 500.

[0139] Understandably, the first upper molding surface 120 has a forward-recessed recess 121, so that the molded upper has a forward-protruding protrusion. The second upper molding surface 220 has a forward-protruding convex portion, which matches the recess 121. When the first upper mold base 100 and the lower mold base 200 are closed, the convex portion and the recess 121 together form a forward-protruding cavity. After the first foaming material expands and forms in this cavity, the first foaming material fills the cavity to form the forward-protruding protrusion.

[0140] The raised blocks are designed to correspond to the ankle tube, which helps to protect and wrap the heel, absorb the impact generated by the movement of the body, and thus improve the wearer's comfort.

[0141] Reference Figure 17 As shown, it is understood that the molding die also includes a second upper mold base, which includes a third upper molding surface and a third sole molding surface connected to each other;

[0142] The one-piece molding process, before adding the first foam material above the lower shoe piece, also includes:

[0143] Step S700: Provide a second foam material and add the second foam material to the top of the lower shoe piece;

[0144] In step S800, the second upper mold base and the lower mold base 200 are closed, the third upper forming surface is opposite to the second upper forming surface 220, and the third sole forming surface is opposite to the second sole forming surface 210, so as to jointly surround the forming cavity, and the second foaming material foams in the cavity.

[0145] In step S900, after the pressure is maintained for a second preset time, the second upper mold base and the lower mold base 200 separate.

[0146] In order to change the support and wrapping performance of the upper or sole for the human body, the molding mold also includes a second upper mold base. The second upper mold base is provided with a third upper molding surface and a third sole molding surface connected to each other. The one-piece molding process can use multiple foaming to prepare the combination body 500 of upper and sole, so that the combination body 500 forms a sandwich with different softness and hardness. Specifically, after the worker attaches the lower shoe piece to the lower mold base 200, the worker can add the second foaming material above the lower shoe piece, and make the second upper mold base and the lower mold base 200 close together. The second upper mold base and the lower mold base 200 together form a cavity, and the second foaming material foams and forms in the cavity. Under the expansion of the second foaming material, a lower adhesive layer is formed above the lower shoe piece. Then, by changing the first upper mold base 100 and the lower mold base 200 to close together, and in conjunction with the foaming method of the first foaming material, an upper adhesive layer with different hardness is formed above the lower adhesive layer. The upper adhesive layer and the lower adhesive layer are sandwiched between the upper shoe piece and the lower shoe piece in sequence, which is beneficial to change the softness and hardness of the assembly 500.

[0147] The lower rubber layer is harder than the upper rubber layer. The human foot directly impacts the upper rubber layer. The hardness design of the upper rubber layer helps absorb the impact generated by the user's movement, thereby improving the user's wearing comfort. The lower rubber layer is set around the outside of the upper rubber layer. The hardness design of the lower rubber layer helps improve the connection stability between the upper and the sole, so as to achieve support and protection for the human foot.

[0148] It should be noted that the first preset time and the second preset time can be adjusted according to factors such as the type of first foaming material, the amount of first foaming material added, and the materials of the upper and lower shoe pieces. For example, they can be 30S, 40S, 50S, 60S, etc. This is just an example, and the actual values ​​of the first preset time and the second preset time are not limited.

[0149] Reference Figure 4 and Figure 5 As shown, it can be understood that the second upper forming surface 220 corresponds to the outer surface of the upper, that is, the appearance surface of the shoe at the upper. The second upper forming surface 220 is provided with textured parts 221 with concave and convex shapes. By the fit between the lower shoe piece and the second upper forming surface 220, and with the expansion effect of the first foam material, the lower shoe piece forms a surface shape that matches the textured parts 221, which helps to improve the forming accuracy of the lower shoe piece. Compared with the hot pressing process, it helps to reduce the limitation of heating temperature on the fabric and avoid the problem of the fabric being damaged by high temperature.

[0150] It should be noted that the specific texture of the texture section 221 can be made according to the actual shoe design, and there is no restriction on the specific texture of the texture section 221 here.

[0151] In another embodiment, the lower mold base 200 also includes a housing and a mold core. The housing has a recessed receiving groove. The mold core is detachably connected to the housing and can be embedded in the receiving groove. When the mold core is embedded in the receiving groove, the upper surface of the mold core and the upper surface of the housing together form the second upper forming surface 220 and the second sole forming surface 210. The textured portion 221 is located on the upper surface of the mold core. This means that workers can change the pattern of the mold core to change the textured portion 221 connected to the housing, thereby meeting the molding requirements of different products. The mold core can be prepared using a 3D stereolithography process. Compared to traditional molds that are integrally machined from a single piece of steel, this method saves manufacturing costs and time, improves manufacturing efficiency, meets the molding requirements of various shapes and structures, and avoids the problem of dead angles in traditional machining.

[0152] It is understood that in step S500, specifically, the first foaming material can be a polyurethane mixture. During the foaming process, the foaming material will heat up and expand on its own, so that the first foaming material is connected to the upper shoe piece and the lower shoe piece as one piece, and the upper shoe piece forms a shape that matches the first shoe upper forming surface 120 and the first shoe sole forming surface 110, and the lower shoe piece forms a shape that matches the second shoe upper forming surface 220 and the second shoe sole forming surface 210, thereby improving the surface accuracy of the shoe upper and shoe sole forming.

[0153] For the molded combination of upper and sole 500, the upper shoe piece is the material that comes into contact with the sole and heel of the human foot. The upper shoe piece can be made of skin-friendly materials, such as various fabrics. The lower surface of the lower shoe piece is used to connect with the midsole, and the rear surface of the lower shoe piece is the rear surface and exterior surface of the heel counter.

[0154] It is understood that in step S500, the lower mold base 200 is provided with a lower bonding surface 250 surrounding the second upper forming surface 220 and the second sole forming surface 210, and the first upper mold base 100 is provided with an upper bonding surface 150 surrounding the first upper forming surface 120 and the first sole forming surface 110. The upper bonding surface 150 can abut against the lower bonding surface 250 to close the mold cavity.

[0155] Specifically, the lower bonding surface is gradually inclined upwards from the inside out, and the upper bonding surface is also gradually inclined upwards from the inside out. When the first upper mold base 100 and the lower mold base 200 are closed, the upper bonding surface 150 and the lower bonding surface 250 are tightly attached to close the outer edge of the mold cavity. Under the expansion of the first foaming material, the first foaming material forms a shape that matches the mold cavity, which helps to avoid the problem of the first foaming material overflowing the mold cavity. It also helps to ensure that the molded shoe upper and sole assembly 500 has a preset softness and hardness. Furthermore, by setting the inclination angle of the upper and lower bonding surfaces, it is beneficial to achieve the alignment of the first upper mold base 100 and the lower mold base 200, so as to achieve the docking of the first upper mold base 100 and the lower mold base 200.

[0156] Understandably, in order to achieve stable docking between the first upper mold base 100 and the lower mold base 200, the lower mold base 200 is also provided with a lower limit part 270, and the first upper mold base 100 is also provided with an upper limit part 170. When the first upper mold base 100 approaches the lower mold base 200, the docking of the upper limit part 170 and the lower limit part 270 helps to restrict the first upper mold base 100 from moving in the lateral direction relative to the lower mold base 200, and helps to make the first upper mold base 100 and the lower mold base 200 dock in a preset position to ensure that the shape of the mold cavity is the preset shape.

[0157] Specifically, the lower limit part 270 includes four connecting posts, which are arranged around the second annular groove 260. The upper end of the four connecting posts is provided with a downward recessed slot. Correspondingly, the upper limit part 170 includes four plug-in posts, which are arranged around the first annular groove 160. The plug-in posts and connecting posts are arranged in a one-to-one correspondence, and the lower end of the plug-in posts can be inserted into the slot.

[0158] After the four plug-in columns are connected to the four connecting columns, and the upper mating surface 150 and the lower mating surface 250 are tightly attached, the first upper mold base 100 and the lower mold base 200 can be docked.

[0159] Understandably, this one-piece molding process also includes the following steps:

[0160] Step S1000: Provide trimming tools and edge binding pieces for use;

[0161] Step S1100: Use a trimming tool to trim the excess edges of the assembly 500;

[0162] In step S1200, the edge binding piece is wrapped around the upper edge of the assembly 500, connecting the edge binding piece to the shoe upper as one piece.

[0163] Considering that the formed assembly 500 needs to be connected to the shoe upper or outsole, and that the upper edge of the assembly 500 may rub against the heel, the one-piece molding process requires trimming the excess edges of the obtained assembly 500 to form a preset shape, so as to facilitate the connection between the assembly 500 and the shoe upper or outsole. The edge banding piece covers the upper edge of the assembly 500, that is, the edge banding piece covers the upper edge of the corresponding shoe upper of the assembly 500, which helps to enhance the connection stability between the upper and lower shoe pieces and avoid the problem of burrs generated on the upper edge of the upper or lower shoe pieces rubbing against the human heel.

[0164] One embodiment of the present invention provides a footwear accessory manufactured using the one-piece molding process described in the above embodiment.

[0165] The first upper mold base 100 is provided with a first upper forming surface 120 and a first sole forming surface 110. The first upper forming surface 120 and the first sole forming surface 110 are arranged at an angle. The junction of the first upper forming surface 120 and the first sole forming surface 110 corresponds to the heel of the human foot. Correspondingly, the lower mold base 200 is provided with a second upper forming surface 220 and a second sole forming surface 210. The second upper forming surface 220 and the second sole forming surface 210 are arranged at an angle. The junction of the upper molding surface 220 and the second sole molding surface 210 together forms a groove 230 that fits the human heel. During production, the worker can attach the upper shoe piece to the first upper molding surface 120 and the first sole molding surface 110, and attach the lower shoe piece to the second upper molding surface 220 and the second sole molding surface 210. Then, the first foaming material can be added to the lower mold base 200. After the first upper mold base 100 and the lower mold base 200 are aligned and the mold is closed, the first upper molding surface 220... The upper mold base 100 and the lower mold base 200 are positioned opposite to the second upper molding surface 220 for forming the upper, and opposite to the second lower molding surface 210 for forming the sole. The upper mold base 100 and the lower mold base 200 together form a mold cavity. The first foaming material is foamed and formed in the mold cavity. Under the expansion of the first foaming material, the upper shoe piece is formed to match the shape and structure of the first upper molding surface 120 and the first lower molding surface 110, and the lower shoe piece is formed to match the shape and structure of the second upper molding surface 220 and the second lower molding surface 210. The first foaming material fills the entire mold cavity. The foam layer formed by the first foaming material is sandwiched between the upper and lower shoe pieces, so that the formed upper and sole are connected as one piece to obtain a footwear accessory. The integrated molding of the upper and sole is beneficial to improving the connection stability between the upper and sole. Compared with the method of making the upper and sole separately and then connecting them, it is beneficial to simplify the shoe manufacturing process and improve production efficiency.

[0166] One embodiment of the present invention provides a shoe that includes the footwear accessories shown in the above embodiments.

[0167] The first upper mold base 100 is provided with a first upper forming surface 120 and a first sole forming surface 110. The first upper forming surface 120 and the first sole forming surface 110 are arranged at an angle. The junction of the first upper forming surface 120 and the first sole forming surface 110 corresponds to the heel of the human foot. Correspondingly, the lower mold base 200 is provided with a second upper forming surface 220 and a second sole forming surface 210. The second upper forming surface 220 and the second sole forming surface 210 are arranged at an angle. The junction of the upper molding surface 220 and the sole molding surface 210 together forms a groove 230 that conforms to the human heel. During production, the worker can attach the upper shoe piece to the first upper molding surface 120 and the first sole molding surface 110, and attach the lower shoe piece to the second upper molding surface 220 and the second sole molding surface 210. Then, the first foaming material can be added to the lower mold base 200. When the first upper mold base 100 and the lower mold base 200 are aligned and the mold is closed, the first upper is formed. The first shoe upper forming surface 120 is positioned opposite to the second shoe upper forming surface 220 for forming the shoe upper. The first shoe sole forming surface 110 is positioned opposite to the second shoe sole forming surface 210 for forming the shoe sole. The first upper mold base 100 and the lower mold base 200 together form a mold cavity. The first foaming material is foamed and formed in the mold cavity. Under the expansion of the first foaming material, it is beneficial for the upper shoe piece to form a shape and structure that matches the first shoe upper forming surface 120 and the first shoe sole forming surface 110. The lower shoe piece is formed to form a shape and structure that matches the second shoe upper forming surface 220 and the second shoe sole forming surface 210. The first foaming material fills the entire mold cavity. The foaming layer formed by the first foaming material is sandwiched between the upper shoe piece and the lower shoe piece, so that the formed shoe upper and the shoe sole are connected as one piece, that is, the shoe upper and the shoe sole are integrally formed. This is beneficial to improve the connection stability between the shoe upper and the shoe sole. Compared with the method of making the shoe upper and the shoe sole separately and then connecting them, it is beneficial to simplify the shoe manufacturing process and improve production efficiency.

[0168] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A one-piece molding process, characterized in that, include: A molding die, a first foaming material, an upper shoe piece, and a lower shoe piece are provided. The molding die includes a first upper mold base (100) and a lower mold base (200). The first upper mold base (100) is provided with a first upper molding surface (120) and a first sole molding surface (110) connected to each other. The lower mold base (200) is provided with a second upper molding surface (220) and a second sole molding surface (210) connected to each other. The upper shoe piece is attached to the first upper forming surface (120) and the first sole forming surface (110); The lower shoe piece is attached to the second upper forming surface (220) and the second sole forming surface (210); The first foaming material is added above the lower shoe piece; The first upper mold base (100) and the lower mold base (200) are closed, the first upper forming surface (120) and the second upper forming surface (220) are opposite to each other, the first sole forming surface (110) and the second sole forming surface (210) are opposite to each other, so as to jointly form a mold cavity, and the first foaming material is foamed in the mold cavity; After holding pressure for a first preset time, the first upper mold base (100) separates from the lower mold base (200) to obtain the combination of the upper and the sole (500); Both the first upper forming surface (120) and the first sole forming surface (110) are provided with a plurality of first air intake holes; The step of attaching the upper shoe piece to the first upper forming surface (120) and the first sole forming surface (110) includes: The upper shoe piece is placed against the first upper forming surface (120) and the first sole forming surface (110), and a vacuum is drawn through the first air intake hole, so that the upper shoe piece is adsorbed onto the first upper forming surface (120) and the first sole forming surface (110). The step of abutting the upper shoe piece against the first upper forming surface (120) and the first sole forming surface (110) includes: A clamping frame is provided, the clamping frame having an opening; The upper shoe piece is connected to the clamping frame and covers the opening; The clamping frame is close to the first upper mold base (100), the first upper forming surface (120) and the first sole forming surface (110) pass through the opening and abut against the upper shoe piece, and the upper shoe piece remains taut; The step of abutting the upper shoe piece against the first upper forming surface (120) and the first sole forming surface (110) includes: A bonding element is provided, the bonding element having a bonding surface adapted to the first upper forming surface (120); The upper shoe piece is placed on the first upper forming surface (120), and the bonding surface of the bonding component is embedded in the first upper forming surface (120); Both the second upper forming surface (220) and the second sole forming surface (210) are provided with multiple second air intake holes; The step of attaching the lower shoe piece to the second upper forming surface (220) and the second sole forming surface (210) includes: The lower shoe piece is placed against the second upper forming surface (220) and the second sole forming surface (210), and a vacuum is drawn through the second air intake hole, so that the lower shoe piece is adsorbed onto the second upper forming surface (220) and the second sole forming surface (210). The lower shoe piece includes a sole panel (510) and an upper panel (520); The step of abutting the lower shoe piece against the second upper forming surface (220) and the second sole forming surface (210) includes: The upper panel (520) is placed corresponding to the second upper forming surface (220), and the sole panel (510) is placed corresponding to the second sole forming surface (210). The rear edge of the sole panel (510) is connected to the lower edge of the upper panel (520).

2. The integral molding process according to claim 1, characterized in that: The molding die further includes a first pressure frame (300), and the first upper mold base (100) is provided with a first annular groove (160) surrounding the first upper molding surface (120) and the first sole molding surface (110), and the first pressure frame (300) is adapted to the first annular groove (160); The step of abutting the upper shoe piece against the first upper forming surface (120) and the first sole forming surface (110) includes: The upper shoe piece is placed over the first annular groove (160), and the first pressure frame (300) is fitted into the first annular groove (160).

3. The integral molding process according to claim 1, characterized in that: The shoe upper panel (520) has a recessed three-dimensional shape; and / or, The shoe upper panel (520) is made by sewing.

4. The integral molding process according to claim 1, characterized in that: The molding die also includes a second pressure frame (400), and the lower mold base (200) is provided with a second annular groove (260) surrounding the second upper molding surface (220) and the second sole molding surface (210), and the second pressure frame (400) is adapted to the second annular groove (260); The step of abutting the lower shoe piece against the second upper forming surface (220) and the second sole forming surface (210) includes: The lower shoe piece is placed over the second annular groove (260), and the second pressure frame (400) is fitted into the second annular groove (260).

5. The integral molding process according to claim 1, characterized in that: The molding die also includes a second upper mold base, which includes a third upper molding surface and a third sole molding surface connected together. The one-piece molding process, before adding the first foam material to the upper part of the shoe piece, further includes: Provide a second foam material and add the second foam material above the lower shoe piece; The second upper mold base and the lower mold base (200) are closed, the third upper forming surface is opposite to the second upper forming surface (220), and the third sole forming surface is opposite to the second sole forming surface (210) to jointly form a cavity, and the second foaming material is foamed in the cavity; After a second preset pressure holding time, the second upper mold base separates from the lower mold base (200).

6. Footwear accessories, characterized in that: It is produced by applying the integral molding process as described in any one of claims 1 to 5.

7. Shoes, characterized in that: Including the footwear accessories as described in claim 6.

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