Production method of upper bottom piece and finished shoe, upper bottom piece and finished shoe

Abstract

The invention discloses a production method of an upper bottom piece and a finished shoe, the upper bottom piece and the finished shoe, and belongs to the technical field of shoemaking, and the production method of the upper bottom piece comprises the following steps: filling a foaming material in a mold opening state of a forming mold; putting the shoe tree into a forming mold; the shoe tree is located in the main cavity, a thin-wall cavity is formed between the shoe tree and the cavity wall of the main cavity, the thin-wall cavity is divided into a first cavity and a second cavity, the first cavity is located on the lower portion of the shoe tree, the foaming material is located in the first cavity, the second cavity is located on the rear portion of the shoe tree, and the first cavity and the second cavity are communicated with the rear portion of the top of the shoe tree; the foaming material is heated to be foamed from the first cavity to the second cavity, a sole is formed in the first cavity, and a heel part is formed in the second cavity; in the forming process, the shoe tree is sleeved with the shoe cover to obtain the production method of the finished shoe, the produced shoe upper bottom piece and the shoe sole and the shoe heel part of the finished shoe are connected more firmly, and the production method of the finished shoe enables the shoemaking process to be simpler and more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of shoe manufacturing, and particularly to a production method of a shoe upper and sole component and a finished shoe, as well as the shoe upper and sole component and the finished shoe. Background Art

[0002] A slip-on shoe refers to a type of shoe that allows a user to directly slip their foot into the shoe without using their hands to lift the back of the shoe, and the foot can automatically slide into the shoe only by stepping on the back of the shoe with the heel. It mainly includes a shoe upper and sole component, and the shoe upper and sole component includes two parts: a sole and a shoe back. Among them, the shoe back is an important component for realizing the slip-on function, and it needs to provide sufficient elasticity for the shoe back to automatically reset and appropriate softness so that the shoe back does not rub the heel. In the existing technology, the shoe back and the sole are produced separately and then bonded later, and the connectivity is not good. The pressure from the heel on the shoe back will cause the shoe back and the sole to move relative to each other, affecting the service life of the slip-on shoe.

[0003] In the existing technology for preparing slip-on finished shoes, since the slip-on finished shoes have a flyknit upper, and the flyknit upper mainly uses TPU monofilament flyknit upper. However, since the optimal molding temperature of the TPU monofilament flyknit upper is 165 degrees Celsius, and the mold temperature of the existing hot pressing and molding production process is generally between 180 degrees Celsius and 230 degrees Celsius. If the TPU monofilament flyknit upper is put into the mold and integrally molded with the foaming material, the overall structure of the TPU monofilament flyknit upper will be damaged. Therefore, the existing production process requires producers to produce the sole, the TPU monofilament flyknit upper, and the shoe back component, and then produce the rough embryo of the shoe through multiple welding methods. Later, manual processing is required to achieve the technical effect of seamless and glue-free. This production method requires producers to combine the elastic component in the shoe back with the shoe back surround piece in advance when producing the upper and shoe back combination. Then, with the cooperation of other molds, the already formed upper and shoe back components and the sole are further heated to make them welded together. This secondary welding combination method between the shoe back and the sole is likely to result in poor connection performance between the sole and the shoe back, easy deformation, and inability to provide sufficient elasticity to achieve the slip-on effect. Moreover, the process of further heating is likely to damage the structure of the sole and the shoe back, that is, damage the structure of the shoe upper and sole component, affecting the use performance of the whole shoe. Reheating the already formed sole will cause secondary welding defects at the welding joints between the sole and the upper and shoe back combination, and manual processing is also required to obtain the finished shoe. Summary of the Invention

[0004] The purpose of the present invention is to provide a production method of a shoe upper and sole component and a finished shoe, as well as the shoe upper and sole component and the finished shoe, so as to solve one or more technical problems existing in the prior art, and at least provide a beneficial choice or create conditions.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is as follows: First, the present invention provides a production method for a shoe upper and sole part, including the following steps:

[0006] Prepare a molding die, a shoe last, and foaming material. The molding die includes a bottom die, a first side die, and a second side die. The first side die and the second side die are symmetrically arranged. The bottom die is provided with a main cavity. The opposite surfaces of the first side die and the second side die are provided with protruding parting surfaces. The parting surface is provided with a blade-shaped edge. The blade-shaped edge means that a bevel is formed below the contact between the parting surface and the shoe last, forming an angle with the upper surface of the parting surface;

[0007] Fill the foaming material in the open state of the molding die;

[0008] Put the shoe last into the molding die;

[0009] Close the mold so that the shoe last is located in the main cavity, make the parting surface closely fit with the shoe last, so that a thin-walled cavity is formed between the shoe last and the cavity wall of the main cavity. The thin-walled cavity is divided into a first cavity and a second cavity. The first cavity is located below the shoe last, and the foaming material is located in the first cavity. The second cavity is located at the rear of the shoe last, and the second cavity extends backward from the top of the shoe last;

[0010] Hot press and form, heat the foaming material to make the foaming material foam from the first cavity to the second cavity, form a shoe sole in the first cavity, and form a shoe heel counter in the second cavity, so as to form the shoe upper and sole part by combining the shoe sole and the shoe heel counter.

[0011] By providing a first cavity and a second cavity communicating with each other in the molding die for simultaneously forming the shoe heel counter and the shoe sole, and placing the foaming material in the first cavity to foam, the producer can foam and form a shoe upper and sole part with moderate elasticity, wear resistance, and supportability at one time through the molding die. In the present invention, the shoe upper and sole part is a combined part of a shoe heel counter and a shoe sole integrated. Compared with the method of stuffing an elastic sheet into the shoe heel counter piece and then connecting the shoe heel counter piece and the shoe sole, the connection firmness between the shoe heel counter and the shoe sole can be improved, so that the shoe heel counter and the shoe sole are not easily separated. When the user steps on the shoe heel counter with the heel force to slide the foot into the shoe, the shoe heel counter produced by this method can provide better support performance. It should be noted that the thin-walled cavity refers to its thickness being less than the main cavity of the molding die, rather than the specific thickness of the thin-walled cavity. Currently, the production of plastic shoe soles generally uses the method of secondary foaming, that is, heating the foaming material to plasticize, and then performing secondary foaming after the molded part is cooled, and then trimming after cooling and shaping. And the method for producing this shoe upper and sole part can not only produce products with better performance, but also save processes and improve production efficiency.

[0012] Since the sole thickness is greater than that of the shoe counter, placing the foaming material in the sole forming area for foaming, with the foaming direction spreading from the first cavity to the second cavity, can enable the foaming material to uniformly extend to the top of the second cavity after filling the first cavity, avoiding uneven foaming and resulting in good consistency of the formed shoe upper and sole parts.

[0013] As an extension of the above solution, the step of filling the foaming material in the open mold state of the molding die includes the following steps:

[0014] Quantitatively weigh the foaming material, which is a polymer composite material;

[0015] Fill the foaming material into the center of the bottom of the first cavity.

[0016] In the stage of filling the foaming material, placing the quantitatively good foaming material in the center of the bottom of the first cavity, with the foaming direction extending from the first cavity to the second cavity, that is, from the sole forming area to the shoe counter forming area, can improve the consistency of the connection between the shoe counter and the sole, maintain consistent performance, and will not form flash overflow or under-molding. On the other hand, by selecting a polymer composite material as the foaming material, the foaming material can have sufficient good fluidity, enabling the produced shoe upper and sole parts to have appropriate elasticity, wear resistance, and support.

[0017] As an extension of the above solution, in the hot pressing and molding step, it includes:

[0018] Heat the molding die to reach the molding temperature and maintain it for the first time, so that the foaming material fills the first cavity and the second cavity and forms according to the first pattern part of the first cavity, obtaining an integrally formed shoe upper and sole part with the first pattern.

[0019] By heating and insulating the die for the first time in the hot pressing and molding stage, the fluidity of the foaming material can be better, enabling the foaming material to fill the first pattern part, which can directly form anti-slip patterns on the sole of the produced shoe upper and sole parts, making the patterns on the side of the produced shoe upper and sole parts more beautiful, and enabling the production of shoe upper and sole parts that can be used in other processes through one-time foaming and molding.

[0020] On the basis of the above solution, the present invention further provides a shoe upper and sole part, which is obtained by the shoe upper and sole part production method described in any one of the above solutions, including an integrally hot-pressed shoe counter and sole, the shoe counter having a first shoe counter connected to the sole, and a second shoe counter extending rearward of the shoe counter connected to the top of the first shoe counter.

[0021] By setting that the shoe counter has a second shoe counter extending backward, when the user wears the shoe with this shoe upper and sole unit, the heel can step on the second shoe counter, and with a slight force, the foot can be slipped into the shoe. Supported by the first shoe counter, the one-step-on function can be realized. Such a setting method can extend the service life of the shoe counter position.

[0022] As an extension of the above solution, one side of the upper surface of the second shoe counter close to the sole has an arc-shaped groove. By having an arc-shaped groove on the upper surface of the second shoe counter close to the sole, when the user wears the shoe with this shoe upper and sole unit, the heel can step on the second shoe counter, and with a slight force, the foot can be slipped into the shoe along the arc-shaped groove. Supported by the first shoe counter, the one-step-on function can be realized. Such a setting method can extend the service life of the shoe counter position.

[0023] As an extension of the above solution, the sole is provided with a first pattern. By setting the first pattern in the sole area, the sole area of the shoe upper and sole unit can have anti-slip patterns and patterns on the side walls, and when applied to other production processes, there is no need for secondary welding processing.

[0024] On the basis of the above solution, the present invention also provides a production method for finished shoes, including the following steps:

[0025] Prepare a molding die, a shoe last, a shoe cover, and foaming material. The molding die includes a bottom die, a first side die, and a second side die. The first side die and the second side die are symmetrically arranged. The bottom die is provided with a main cavity. The opposite surfaces of the first side die and the second side die are provided with protruding parting surfaces. The parting surface is provided with a blade-shaped edge, and the blade-shaped edge means that a bevel is formed below the contact between the parting surface and the shoe last, forming an angle with the upper surface of the parting surface;

[0026] Fill the foaming material in the open state of the molding die;

[0027] Put the shoe cover on the shoe last so that the shoe cover fits tightly with the shoe last;

[0028] Move the shoe last into the molding die;

[0029] Close the die so that the shoe cover is located in the main cavity, and make the parting surface fit tightly with the shoe cover, so that a thin-walled cavity is formed between the shoe cover and the cavity wall of the main cavity. The thin-walled cavity is divided into a first cavity and a second cavity. The first cavity is located at the lower part of the shoe cover, and the foaming material is located in the first cavity. The second cavity is located at the rear of the shoe cover, and the second cavity extends backward from the top of the shoe cover;

[0030] Hot pressing molding, heating the foaming material to cause the foaming material to foam from the first cavity to the second cavity, forming a shoe sole in the first cavity and a shoe heel counter in the second cavity. During the foaming process, the foaming material is welded to the shoe cover to obtain a finished shoe.

[0031] By putting the shoe cover on the shoe last and placing the made shoe last into the molding die, the foaming material is in direct contact with the shoe cover. The produced shoes avoid the flaw of secondary welding and do not require manual rework and can be directly used. Since the shoe upper and sole parts produced are formed in one step, it will not affect the service life of the shoe upper and sole parts. At the same time, the shoe upper and sole parts are welded to the shoe cover at a high temperature, and there is better adhesion performance between the produced shoe upper and sole parts and the shoe cover, which can improve the service life of the shoes.

[0032] Since the shoe heel counter and the shoe sole are integrally hot-pressed and molded, the formed shoe heel counter part has elasticity and support performance. And because part of the shoe cover is exposed outside the cavity, the temperature borne by the upper part of the shoe cover is much lower than the molding temperature of the foaming material in the first cavity and the second cavity. The surface structure of the TPU monofilament fly-knit upper part will not be affected by the temperature of the foaming material. Therefore, in the pre-prepared shoe cover, it can be only a combination of the TPU monofilament fly-knit upper, the shoe heel counter gusset, and the insole, and does not need to include a shoe heel counter elastic part. And this combination can be directly obtained by fabric weaving, that is, the production method of the finished shoes provided by the present invention can produce a slip-on whole shoe with a TPU monofilament fly-knit upper only through one-time foaming and molding.

[0033] As an extension of the above solution, when closing the mold, the shoe cover and the molding die are closely fitted through the parting surface, so that part of the shoe cover is located inside the parting surface and welded to the foaming material, and the other part of the shoe cover is exposed outside the parting surface.

[0034] This can make a part of the shoe cover exposed outside the parting surface not be heated, and can maintain the performance of the TPU monofilament fly-knit upper of the produced whole shoe, and will not damage the overall layer structure of the upper due to the welding of the upper and the sole. The part of the TPU monofilament fly-knit upper located below the parting surface will be reheated and melted during the foaming of the foaming material, so that this part is tightly connected to the shoe upper and sole parts.

[0035] As an extension of the above solution, when closing the mold, the blade-like edge of the parting surface presses against the upper edge of the insole part of the shoe cover and a part of the rear vamp piece of the shoe cover. This can make the foaming material completely welded to the insole of the shoe cover, making the produced whole shoe firmly connected. And because the blade-like edge of the parting surface is used to press the shoe cover, the foaming space between the first cavity and the second cavity can be made more airtight, making the produced shoe upper and sole part more integrated, improving the connection firmness between the rear vamp and the sole, making it not easy to separate, and providing better support performance for the rear vamp.

[0036] On the basis of the above solution, the present invention further provides a finished shoe, which is obtained by the shoe-making method described in any one of the above solutions. Since the obtained finished shoe has the shoe upper and sole part described in any one of the above solutions, the finished shoe can have all the beneficial effects of the shoe upper and sole part. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The following further describes the present invention with reference to the drawings and embodiments;

[0038] Figure 1 It is a flowchart of the production method of the shoe upper and sole part provided by the present invention;

[0039] Figure 2 It is a flowchart of the production method of the finished shoe provided by the present invention;

[0040] Figure 3 It is a flowchart of the production method of the shoe upper and sole part provided by the embodiment of the present invention;

[0041] Figure 4 It is a flowchart of the production method of the shoe upper and sole part provided by the embodiment of the present invention;

[0042] Figure 5 It is a schematic diagram of the molding die provided by the present invention;

[0043] Figure 6 It is a schematic diagram of the shoe cover provided by the present invention;

[0044] Figure 7 It is a partial schematic diagram of the molding die provided by the present invention;

[0045] Figure 8 It is a schematic diagram of the second side mold provided by the present invention;

[0046] Figure 9 It is a schematic diagram of the shoe upper and sole part provided by the present invention;

[0047] Figure 10 It is a schematic diagram of the finished shoe provided by the present invention;

[0048] Figure 11It is a schematic diagram of the shoe upper and sole component provided by the embodiment of the present invention.

[0049] In the drawings: 100, forming mold; 101, first cavity; 102, second cavity; 103, parting surface; 104, first pattern part, 1041, anti-slip pattern forming cavity, 1042, pattern forming cavity, 1046, first pattern, 1043, anti-slip pattern, 1044, pattern; 105, first side mold; 106, second side mold, 1061, lower cavity, 1062, upper cavity, 1063, main cavity; 107, bottom mold, 1071, chute, 1072, guide post; 200, shoe last; 300, shoe upper and sole component; 301, shoe back, 3011, first shoe back, 3012, second shoe back; 302, shoe sole, 3021, arc groove; 303, first exhaust hole; 304, second exhaust hole; 400, shoe cover; 401, insole; 402, shoe back gusset; 403, shoe upper; 500, finished shoe. Detailed implementation manners

[0050] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the protection scope of the present invention.

[0051] In the description of the present invention, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0052] In the description of the present invention, if there are descriptions with words such as "several", its meaning is one or more, and the meaning of multiple is more than two. Understandings such as greater than, less than, exceeding, etc. do not include the present number, and understandings such as above, below, within, etc. include the present number.

[0053] In the description of the present invention, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0054] Referring to Figures 1 to 11 , several embodiments of the production method of the shoe upper and sole component of the present invention are given below.

[0055] Such as Figure 1 , Figure 5 , Figure 6 ,Figure 7 , Figure 8 As shown in Figure 8 , in some embodiments, a production method of a shoe upper and sole part includes:

[0056] S100. Prepare a molding die 100, a shoe last 200, and foaming material. The molding die 100 includes a bottom die 107, a first side die 105 and a second side die 106 symmetrically arranged. A main cavity 1063 is provided on the bottom die 107. A protruding parting surface 103 is provided on the opposite surfaces of the first side die 105 and the second side die 106. The parting surface 103 is provided with a blade-like edge.

[0057] S200. Fill the foaming material in the open state of the molding die 100.

[0058] S300. Place the shoe last 200 into the molding die.

[0059] S400. Close the die so that the shoe last 200 is located in the main cavity 1063, make the parting surface 103 closely fit with the shoe last 200, and form a thin-walled cavity between the shoe last 200 and the cavity wall of the main cavity 1063. The thin-walled cavity is divided into a first cavity 101 and a second cavity 102. The first cavity 101 is located below the shoe last 200, and the foaming material is located in the first cavity 101. The second cavity 102 is located at the rear of the shoe last 200, and the second cavity 102 extends backward from the top of the bottom die 107.

[0060] S500. Hot press and form, heat the foaming material to make the foaming material foam from the first cavity 101 to the second cavity 102, form a shoe sole in the first cavity 101, and form a shoe back part in the second cavity 102.

[0061] Wherein, the parting surface 103 has a notch matching the shape of the shoe last 200. When cooperating with the shoe last 200 for hot press forming, the notch closely adheres to the shoe last 200. The parting surface 103 is arranged in the upper middle part of the side die, so that the space enclosed by the first side die 105, the second side die 106 and the shoe last 200 is divided into an upper cavity 1062 and a lower cavity 1061.

[0062] In the closed die state, the height of the rear end surface of the molding die 100 is higher than the height of the front end surface of the molding die 100, so that there is an included angle between the upper and lower surfaces of the molding die 100. The height of the rear of the main cavity 1063 of the bottom die 107 is higher than the height of the front of the main cavity 1063.

[0063] In the mold-closed state, the parting surface 103 closely adheres to the shoe last 200. The shoe last 200 is placed inside the bottom mold 107, so that a first cavity 101 and a second cavity 102 are formed between the main cavity 1063 on the bottom mold 107, the shoe last 200 and the side mold. The first cavity 101 is provided with a first pattern part 104. The first pattern part 104 includes an anti-slip pattern forming cavity 1041 provided at the bottom of the first cavity 101 and a pattern forming cavity 1042 provided at the side wall of the first cavity 101. The first cavity 101 is correspondingly used for sole molding, and the second cavity 102 is used for rear shoe upper molding. The bottom mold 107 is located in the lower cavity 1061, and a part of the shoe last 200 is exposed in the upper cavity 1062. Wherein, at the position where the parting surface 103 contacts the shoe last 200, there is also a blade-shaped edge (that is, a bevel is formed below the contact between the parting surface 103 and the shoe last 200, forming a certain angle with the upper surface of the parting surface 103), so that the side mold fits more closely with the shoe last 200. The side mold and the bottom mold 107 are provided with matching chutes 1071 and guide posts 1072 for moving the side mold relative to the bottom mold 107, so that the positioning accuracy is higher.

[0064] During production, the molding die 100 and the shoe last 200 are both loaded on a shoe-making machine. A release agent is sprayed onto the main cavity 1063 and the shoe last 200, and then a precisely measured amount of foaming material is placed into the main cavity 1063. The shoe last 200 is moved towards the main cavity 1063 to place the shoe last 200 in the molding die 100, so that a first cavity 101 and a second cavity 102 communicating with each other are formed in the molding die 100. Then, the mold is closed, pressure is applied to the shoe last 200, and the mold is heated to 184 °C and kept warm for 200 seconds, so that the foaming material uniformly fills the first cavity 101 and the second cavity 102, and a shoe upper and sole part 300 is integrally formed. After cooling, the shoe upper and sole part 300 is taken out.

[0065] In order to ensure that the formed shoe upper and sole part 300 has good wear resistance, supportability and elasticity, the foaming material is selected as a high molecular composite material. In this embodiment, a high molecular composite material composed of 70% TPU, 14% SEBS material, 10% EVA, 4% POE, 1.6% compatibilizer and 0.4% antioxidant is selected. By arranging a main cavity 1063 in which the rear shoe upper 301 and the sole 302 are integrally formed in the molding die 100, producers can integrally hot-press a rear shoe upper 301 and a sole 302 assembly with moderate elasticity, wear resistance and supportability through the molding die 100, improving the connection firmness between the rear shoe upper 301 and the sole 302, making the rear shoe upper 301 and the sole 302 not easily separated, and being able to provide better support performance for the rear shoe upper.

[0066] Materials such as polyether block polyamide mixed with a small amount of ethylene-vinyl acetate copolymer, polyether block polyamide mixed with a small amount of thermoplastic polyurethane rubber, and thermoplastic polyurethane rubber mixture can also be used as foaming materials and produced using this process.

[0067] Such as Figure 3 As shown, in some embodiments, considering the need to solve the problem of flash and make the foaming of the foaming material more uniform, in step S300, step S300 is specifically set as:

[0068] Step S310, quantitatively weighing the foaming material;

[0069] Step S320, filling the foaming material to the center of the bottom of the first cavity 101.

[0070] Making the foaming direction extend from the first cavity 101 to the second cavity 102, that is, extending from the sole molding area to the shoe counter molding area, can improve the consistency of the connection between the shoe counter 301 and the sole 302, maintain consistent performance, and prevent flash overflow or insufficient molding. In some cases, the foaming material can be cut into strips, and the length of the foaming material is equal to the length of the shoe last 200. Specifically, the molding die 100 is clamped above the disk shoe-making machine, the shoe last 200 is set below the molding die 100. When filling the foaming material, the cut foaming material is pasted on the shoe last 200, and then the shoe last 200 is lifted so that the foaming material is located at the bottom of the first cavity 101. By using the method of inverting the molding die 100, the fluidity of the foaming material can be enhanced, enabling this method for producing shoe upper and sole parts to be applicable to different types of materials and meet the needs of producers.

[0071] Such as Figure 4 As shown, in some embodiments, to improve the fluidity of the foaming material and make the sole area of the produced shoe upper and sole part 300 have anti-slip patterns, step S400 includes:

[0072] S410, heating the molding die 100 to reach the molding temperature and maintaining it for the first time, so that the foaming material fills the first cavity 101 and the second cavity 102 and is molded according to the first pattern part 104 of the first cavity 101, obtaining an integrally molded shoe upper and sole part 300 with the first pattern 1046.

[0073] By heating and insulating the mold for the first period of time during the hot pressing and forming stage, the fluidity of the foaming material can be made better, enabling the foaming material to fill the first pattern part 104. This allows the sole 302 of the shoe upper and sole part 300 produced to directly form anti-slip patterns 1043, and makes the patterns 1044 formed on the side of the shoe upper and sole part 300 produced more beautiful. It can directly produce the shoe upper and sole part 300 that can be used in other manufacturing processes through one-step foaming and forming.

[0074] As Figure 2 shown, in some embodiments, the present invention further provides a method for manufacturing a finished shoe, including the following steps:

[0075] S1. Prepare a forming mold 100, a shoe last 200, a shoe cover 400, and foaming material. The forming mold 100 includes a bottom mold, a first side mold 105 and a second side mold 106 symmetrically arranged. The bottom mold 107 is provided with a main cavity 1063. The opposite surfaces of the first side mold 105 and the second side mold 106 are provided with protruding parting surfaces 103, and the parting surfaces 103 are provided with blade-shaped edges;

[0076] S2. Fill the foaming material in the open state of the forming mold 100;

[0077] S3. Put the pre-prepared shoe cover 400 on the shoe last 200 so that the shoe cover 400 fits closely with the shoe last 200;

[0078] S4. Put the shoe last 200 into the forming mold 100;

[0079] S5. Close the mold so that the shoe last 200 is located in the main cavity 1063, make the parting surface 103 fit closely with the shoe cover 400, so that a thin-walled cavity is formed between the shoe cover 400 and the cavity wall of the main cavity 1063. The thin-walled cavity is divided into a first cavity 101 and a second cavity 102. The first cavity 101 is located below the shoe last 200, and the foaming material is located in the first cavity 101. The second cavity 102 is located at the rear of the shoe cover 400, and the second cavity 102 extends backward from the top of the bottom mold 107;

[0080] S6. Hot press and form, heat the foaming material to make the foaming material foam from the first cavity 101 to the second cavity 102, form a sole in the first cavity 101, and form a shoe back in the second cavity 102. Taking the parting surface 103 as the relative outer side, during the foaming process, the foaming material is welded to the part of the shoe cover 400 located inside the parting surface 103 to obtain an integrally formed finished shoe 500.

[0081] The structure of the shoe cover 400 includes a shoe upper 403, an insole 401, and a rear shoe counter piece 402. The shoe upper 403 is connected to the rear shoe counter piece 402 to form a shoe upper assembly with an opening, and the shoe upper assembly is connected to the insole 401.

[0082] By putting the shoe cover 400 on the shoe last 200 and placing the prepared shoe last 200 into the molding die 100, the foaming material is in direct contact with the shoe cover 400. The produced finished shoe 500 does not have the defect of secondary welding, does not need to be manually trimmed again, and can be directly used. Since the shoe upper and sole part 300 produced is formed in one step, it does not affect the service life of the shoe upper and sole part 300. At the same time, the shoe upper and sole part 300 is welded to the shoe cover 400 at a high temperature, and there is better adhesion performance between the produced shoe upper and sole part 300 and the shoe cover 400, which can improve the service life of the finished shoe 500.

[0083] Since the rear shoe upper 301 and the sole 302 are integrally hot-pressed and formed, the rear shoe upper 301 part has certain elasticity and support performance. Therefore, in the pre-prepared shoe cover 400, the elastic part in the rear shoe upper assembly in the prior art can be not included. That is, the shoe cover 400 can only be a combination of the shoe upper 403, the lining of the rear shoe counter piece, and the insole 401, and this combination can be directly obtained by fabric weaving. That is, the production method of the finished shoe provided by the present invention can produce a slip-on finished shoe only through one-time hot pressing. Moreover, the sole 302 and the rear shoe upper 301 of the finished shoe 500 produced by this method are obtained by the production method of the shoe upper and sole part provided by the present invention. Therefore, the produced finished shoe 500 has all the advantages originally possessed by the production method of the shoe upper and sole part.

[0084] As Figure 5 shown, in some embodiments, in order to prevent the part of the shoe cover 400 that is not in contact with the shoe upper and sole part 300 from being heated and to maintain the performance of the shoe upper 403 of the produced finished shoe 500, especially when producing a slip-on whole shoe with a special layer structure on the shoe upper, the special layer structure of the shoe upper 403 will not be damaged due to the welding between the shoe upper 403 and the sole 302. In step S350, when the mold is closed, the shoe cover 400 and the molding die 100 are closely attached through the parting surface 103, so that a part of the shoe cover 400 is located inside the parting surface 103 and is welded to the foaming material, and another part of the shoe cover 400 is exposed outside the parting surface 103.

[0085] In some embodiments, the upper edge of the insole 401 part of the shoe cover 400 and a part of the rear shoe upper gusset 402 of the shoe cover 400 can also be pressed tightly by the blade-shaped edge of the parting surface 103, so that the foaming material is completely welded to the insole 401 of the shoe cover 400, making the produced finished shoe 500 firmly connected. And because the blade-shaped edge of the parting surface 103 is used to press the shoe cover 400, the foaming space between the first cavity 101 and the second cavity 102 can be made more airtight, making the produced shoe upper and sole part 300 more integrated.

[0086] As Figure 9 shown, in some embodiments, the present invention also provides a shoe upper and sole part 300, which is produced by the above-mentioned scheme and includes: a rear shoe upper 301 and a sole 302 integrally formed by hot pressing. The bottom of the sole 302 is provided with anti-slip patterns 1043, and the side wall of the sole 302 is provided with patterns 1044. The rear shoe upper 301 has a first rear shoe upper 3011 connected to the sole 302, and a second rear shoe upper 3012 extending backward from the top of the first rear shoe upper 3011 is connected to the first rear shoe upper 3011. By integrally forming the rear shoe upper 301 and the sole 302 by hot pressing, the connection firmness between the rear shoe upper 301 and the sole 302 can be improved, making it not easy to separate, and better supporting performance can be provided for the rear shoe upper 301. By providing that the rear shoe upper 301 has a second rear shoe upper 3012 extending backward, when the user wears a shoe containing the shoe upper and sole part 300, the heel can step on the second rear shoe upper 3012, and with a slight force, the foot can be slipped into the shoe. Under the support of the first rear shoe upper 3011, the function of one-step entry can be realized, and the service life of the rear shoe upper 301 can be extended.

[0087] In order to further enable the user to better realize the function of one-step entry and extend the service life of the rear shoe upper 301 when wearing a shoe containing the shoe upper and sole part 300, the upper surface of the second rear shoe upper 3012 near the sole 302 has an arc-shaped groove, which has the function of positioning and guiding, so that when the user steps on the second rear shoe upper 3012 with the heel, the foot can slide directly into the shoe along the arc-shaped groove, reducing the degree of deformation of the rear shoe upper 301.

[0088] As Figure 10 shown, in some embodiments, a finished shoe 500 is also provided. The finished shoe 500 includes a shoe upper 403, a rear shoe upper gusset 402, an insole 401, and a shoe upper and sole part 300. The shoe upper 403 is connected to the rear shoe upper gusset 402 to form a shoe cover assembly with a shoe opening. The shoe cover assembly is connected to the insole 401, and the insole 401, the rear shoe upper gusset 402, and the shoe upper and sole part 300 are integrally formed and connected by hot pressing through the production method of the foregoing finished shoe.

[0089] In some embodiments, the production personnel clamp the molding die 100 above the shoe-making machine, connect the lifting bracket to the shoe last 200 and set it below the molding die 100, so that the bottom of the shoe last 200 faces the molding die 100 in an inverted manner. When filling the foaming material, measure the foaming material and cut it into a strip with a length consistent with that of the shoe last 200, and attach the foaming material to the bottom of the shoe last 200. When the filling of the foaming material is completed, move the shoe last 200 upward so that the bottom of the shoe last 200 and the molding die 100 clamp the foaming material. Then, heat and keep warm the molding die 100 so that the foaming material foams and fills the first cavity 101 and the second cavity 102.

[0090] After cooling, open the molding die 100, lower the lifting bracket, and then take out the mold to obtain the integrally formed shoe upper and sole part 300. Since the molding die 100 is inverted, the second cavity 102 becomes downward-facing, making it easier for the foaming material to fill the second cavity 102, ensuring uniform foaming of the foaming material. Even when using materials with poor foaming fluidity, the molding effect can be guaranteed.

[0091] Similarly, by putting a shoe cover 400 on the shoe last 200, a finished shoe 500 can be produced. And because there is an included angle between the upper and lower surfaces of the molding die 100, and the vertical height of the front surface of the molding die 100 is less than the vertical height of the rear surface of the molding die 100, when the molding die 100 is clamped above the shoe-making machine, the front side of the molding die 100 faces outward, which is convenient for dissipating heat from the surface of the shoe cover 400 when producing the finished shoe 500.

[0092] As Figure 11 shown, in some embodiments, in the shoe upper and sole part 300 provided by the present invention, the shoe upper and sole part 300 is further provided with a first exhaust hole 303 and a second exhaust hole 304. The first exhaust hole 303 runs through the shoe upper and sole part 300 in the left-right direction, and the second exhaust hole 304 runs through the upper surface of the shoe upper and sole part 300 and communicates with the first exhaust hole 303. When the user wears sports shoes containing the shoe upper and sole part 300, since there are ventilation holes provided on the insole of the shoe, and the insole of the shoe is connected to the shoe upper and sole part, the sweat inside the shoe can pass through the ventilation holes on the insole and be discharged through the first exhaust hole 303 and the second exhaust hole 304. The existence of the first exhaust hole 303 and the second exhaust hole 304 reduces the weight of the shoe upper and sole part, thereby reducing the overall weight of the shoe. When the user is walking, the first exhaust hole 303 will undergo slight deformation between its upper and lower walls due to the user's gravity and will recover when the user lifts the foot. The first exhaust hole 303 can play a buffering role. Due to the characteristics of the high-resilience material, the first exhaust hole 303 will not be completely flattened.

[0093] The above has specifically described the preferred embodiments of the present invention. However, the present invention is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A production method of a shoe upper and sole unit, characterized in that, It includes the following steps: Prepare a forming mold (100), a shoe last (200), and foaming material. The forming mold (100) includes a bottom mold (107), a first side mold (105), and a second side mold (106). The first side mold (105) and the second side mold (106) are symmetrically arranged. A main cavity (1063) is provided on the bottom mold (107). A protruding parting surface (103) is provided on the opposite surfaces of the first side mold (105) and the second side mold (106). The parting surface (103) has a blade-shaped edge. The blade-shaped edge means that a bevel is formed below the contact between the parting surface (103) and the shoe last (200), forming an angle with the upper surface of the parting surface (103). Fill the foaming material in the open state of the forming mold (100). Place the shoe last (200) into the forming mold (100). Close the mold so that the shoe last (200) is located in the main cavity (1063), make the parting surface (103) closely fit with the shoe last (200), and form a thin-walled cavity between the shoe last (200) and the cavity wall of the main cavity (1063). The thin-walled cavity is divided into a first cavity (101) and a second cavity (102). The first cavity (101) is located at the lower part of the shoe last (200), and the foaming material is located in the first cavity (101). The second cavity (102) is located at the rear of the shoe last (200), and the second cavity (102) extends backward from the top of the bottom mold (107). Hot press and form. Heat the foaming material to make the foaming material foam from the first cavity (101) to the second cavity (102), form a shoe sole in the first cavity (101), and form a shoe heel counter in the second cavity (102), so that the shoe sole and the shoe heel counter form the shoe upper-bottom part.

2. The production method of the shoe upper and sole part according to claim 1, characterized in that: In the step of filling the foaming material in the open state of the forming mold (100), it includes the following steps: Quantitatively weigh the foaming material, and the foaming material is a polymer composite material. Fill the foaming material to the center of the bottom of the first cavity (101).

3. The production method of the shoe upper and sole piece according to claim 1, characterized in that: In the step of hot press and form, it includes: Heat the forming mold (100) to make the forming mold (100) reach the forming temperature and maintain for a first period of time, so that the foaming material fills the first cavity (101) and the second cavity (102) and is formed according to the first pattern part (104) of the first cavity (101), and obtain an integrally formed shoe upper-bottom part (300) with a first pattern (1046).

4. A shoe upper and sole unit, characterized in that: Obtained by the shoe upper-bottom part production method according to any one of claims 1 to 3, including an integrally hot-pressed shoe heel counter (301) and a shoe sole (302). The shoe heel counter (301) has a first shoe heel counter (3011) connected to the shoe sole (302), and a second shoe heel counter (3012) extending backward from the top of the first shoe heel counter (3011) is connected to the shoe heel counter (301).

5. The shoe upper and sole member according to claim 4, wherein: One side of the upper surface of the second shoe heel counter (3012) close to the shoe sole (302) has an arc-shaped groove.

6. The shoe upper and sole member according to claim 5, wherein: The sole (302) is provided with a first pattern (1046).

7. A production method of finished shoes, characterized in that, The method includes the following steps: Prepare a molding die (100), a shoe last (200), a shoe cover (400), and a foaming material. The molding die (100) includes a bottom die (107), a first side die (105), and a second side die (106). The first side die (105) and the second side die (106) are symmetrically arranged. The bottom die (107) is provided with a main cavity (1063). The opposite surfaces of the first side die (105) and the second side die (106) are provided with protruding parting surfaces (103). The parting surfaces (103) are provided with blade-shaped edges. The blade-shaped edges refer to that a bevel is formed below the contact part of the parting surfaces (103) and the shoe cover (400), forming an angle with the upper surface of the parting surfaces (103). Fill the foaming material in the open state of the molding die (100). Put the shoe cover (400) on the shoe last (200) so that the shoe cover (400) fits tightly with the shoe last (200). Move the shoe last (200) into the molding die (100). Close the die so that the shoe last (200) is located in the main cavity (1063), and the parting surfaces (103) fit tightly with the shoe cover (400), so that a thin-walled cavity is formed between the shoe cover (400) and the cavity wall of the main cavity (1063). The thin-walled cavity is divided into a first cavity (101) and a second cavity (102). The first cavity (101) is located below the shoe last (200), and the foaming material is located in the first cavity (101). The second cavity (102) is located at the rear of the shoe cover (400), and the second cavity (102) extends backward from the top of the bottom die (107). Hot press and form. Heat the foaming material so that the foaming material foams from the first cavity (101) to the second cavity (102). A sole is formed in the first cavity (101), and a shoe back part is formed in the second cavity (102). During the foaming process, the foaming material is welded to the shoe cover (400) to obtain a finished shoe.

8. The production method of the finished shoes according to claim 7, characterized in that: In the die closing step, it includes the following steps: Make the shoe cover (400) fit tightly with the parting surfaces (103) and the shoe last (200). Make a part of the shoe cover (400) be located inside the parting surfaces (103) and be welded to the foaming material, and make another part of the shoe cover (400) expose outside the parting surfaces (103).

9. The production method of the finished shoe according to claim 8, characterized in that: Make the blade-shaped edges of the parting surfaces (103) press the upper edges of the insole (401) part of the shoe cover (400) and a part of the backstay panel (402) of the shoe cover (400).

10. A finished shoe, characterized in that: It includes a shoe upper and sole part (300) and a shoe cover (400), and is made by the production method of the finished shoe according to any one of claims 7 to 9.

Images