阅读说明：本技术 一种套包鞋中底、包含套包鞋中底的鞋子及其制造方法 (Middle sole of overshoe, shoe comprising middle sole of overshoe and manufacturing method of middle sole ) 是由 吴立俊 于 2019-12-09 设计创作，主要内容包括：本发明公开了一种套包鞋中底、包含套包鞋中底的鞋子及其制造方法。其技术要点是：鞋中底,所述鞋中底的上侧面平整,所述鞋中底的下侧面边缘设有容纳鞋帮面的帮脚的缺口,所述缺口沿鞋中底边缘方向延伸且环形封闭,所述缺口包围的中间区域为抵触部,当鞋帮面的帮脚弯折嵌入缺口内时,鞋帮面帮脚与抵触部形成一个平整的贴合面,本发明能够使成品冷粘鞋贴合牢固、脚感舒适、使用寿命长。(The invention discloses a middle sole of a package shoe, a shoe comprising the middle sole of the package shoe and a manufacturing method of the middle sole of the package shoe. The technical key points are as follows: the shoe insole is flat in upper side face, a notch for accommodating the upper foot of the upper face is formed in the edge of the lower side face of the shoe insole, the notch extends along the direction of the edge of the middle bottom of the shoe and is sealed in an annular mode, the middle area surrounded by the notch is an abutting part, and when the upper foot of the upper face is bent and embedded into the notch, the upper foot and the abutting part form a flat attaching face.)

1. A galosh midsole comprising: shoe insole (1), the side of going up of shoe insole (1) levels its characterized in that: the utility model discloses a shoe upper, including shoes insole (1), breach (2), middle zone that breach (2) surround are conflict portion (3), and when the lasting foot of lasting face was buckled and is imbedded in breach (2), the lasting foot of lasting face formed a smooth binding face with conflict portion (3).

2. The overshoe midsole of claim 1, wherein: the notch (2) is arranged for a step (21).

3. The overshoe midsole of claim 2, wherein: the width of the ladder (21) is consistent, and the height of the ladder (21) is consistent with the thickness of the upper surface.

4. The overshoe midsole of claim 2, wherein: the edge of the step (21) is provided with a convex arc-shaped guide part (210).

5. The overshoe midsole of claim 1, wherein: the notch (2) is an inclined surface (22) which is inclined outwards from the inside of the insole (1).

6. The utility model provides a shoes that contain cover package shoes insole, including upper of a shoe face, shoes insole (1) and sole, shoes insole (1) sets up between upper of a shoe face and sole, its characterized in that: the midsole (1) is an overshoe midsole according to any one of claims 1 to 5.

7. A method of manufacturing a shoe including a socketed midsole, comprising:

step 1: making the upper surface into an inward turning of the upper in advance;

step 2: connecting the pre-turned upper surface with the step (21) at the edge of the insole (1) to form a flat binding surface;

and step 3: covering the connected upper surface and the insole (1) on a fixed shoe tree;

and 4, step 4: polishing the upper foot, gluing the binding surface, and then binding the shoe sole;

and 5: and (5) pressing and reinforcing, and taking down the finished shoe after the glue is firmly adhered.

8. A method of manufacturing a shoe including a socketed midsole, comprising:

step 1: making the upper surface into an inward turning of the upper in advance;

step 2: connecting the pre-turned upper surface with the step (21) at the edge of the insole (1) to form a flat binding surface;

and step 3: covering the connected upper surface and the insole (1) on a fixed shoe tree;

and 4, step 4: placing the connected upper surface and the insole (1) into an injection mold for injection molding;

and 5: taking down the shoe tree after the injection molding material is foamed;

step 6: and taking down the finished product shoes.

9. A method of manufacturing a shoe including a socketed midsole, comprising:

step 1: cutting the upper foot of the upper surface into an inclined slope surface by using a peeling machine;

step 2: making the upper surface into an inward turning of the upper in advance;

and step 3: aligning and connecting the slope on the pre-turned upper surface with the inclined surface (22) at the edge of the insole (1) to form a flat attaching surface;

and 4, step 4: covering the connected upper surface and the insole (1) on a fixed shoe tree;

and 5: polishing the upper foot, gluing the binding surface, and then binding the shoe sole;

step 6: and (5) pressing and reinforcing, and taking down the finished shoe after the glue is firmly adhered.

10. A method of manufacturing a shoe including a socketed midsole, comprising:

step 1: cutting the upper foot of the upper surface into an inclined slope surface by using a peeling machine;

step 2: making the upper surface into an inward turning of the upper in advance;

and step 3: aligning and connecting the slope on the pre-turned upper surface with the inclined surface (22) at the edge of the insole (1) to form a flat attaching surface;

and 4, step 4: covering the connected upper surface and the insole (1) on a fixed shoe tree;

and 5: placing the connected upper surface and the insole (1) into an injection mold for injection molding;

step 6: taking down the shoe tree after the injection molding material is foamed;

and 7: and taking down the finished product shoes.

Technical Field

The invention relates to the field of shoemaking, in particular to a middle sole of a package shoe, a shoe comprising the middle sole of the package shoe and a manufacturing method of the middle sole of the package shoe.

Background

At present, consumers have higher and higher requirements on the comfort level of footwear products, and designers and craftsmen can only make efforts on appearance modeling and decoration, or design the functional designs of breathable shoes, massage shoes and the like as health shoes.

Present healthy shoes are all pursuing the comfort of foot, and simultaneously, soft sole cover package technology is the comfort level is the highest in the leather shoes article, and present technique is only applicable to playshoes and the shoes of moulding plastics of helping even, and the dress, the commercial shoes etc. of cold-sticking, current technique can't be implemented, and the reason is: the cold-bonding process of the shoes needs a 10-15mm foot-supporting ground as a surface which is jointed with the soles, otherwise, the shoes are not firmly jointed with the soles and can be separated (the surfaces and the soles are separated), and the conventional insole is manufactured by the process, and the problem still exists that the insole and the upper surface are connected, the heel part surrounds the bottom edge of the insole, the upper of the shoe at the bottom edge of the insole is protruded downwards, the middle part of the insole is relatively sunken, the surface adhered with the sole is an uneven surface, when the sole is adhered by brushing glue, the sole is adhered with the upper and the foot at the edge, the middle part of the insole is adhered with the sole, at the moment, the middle part of the insole sinks, the contact surface with the foot is uneven, the comfortable feeling of the foot is low, and a gap exists between the adhered insole and the sole, the insole and the sole are easily separated by extrusion in the walking process, the quality of the shoe is low, and the service life is short.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the middle sole of the overshoe, the shoe comprising the middle sole of the overshoe and the manufacturing method thereof, which enable the finished product cold-bonded shoe to be firmly attached and the foot feel to be comfortable.

In order to achieve the purpose, the invention provides the following technical scheme: a galosh midsole comprising: the shoes insole, the side of going up of shoes insole levels, the downside edge in shoes insole is equipped with the breach that holds the group's foot of upper of a shoe face, the breach is sealed along the extension of the sole edge direction in the shoes and annular, the middle zone that the breach surrounds is conflict portion, and when the group's foot of upper of a shoe face buckles to imbed in the breach, the group's foot of upper of a shoe face forms a smooth binding face with conflict portion.

As a further improvement of the invention, the notches are arranged in a step.

As a further improvement of the present invention, the width of the step is uniform, and the height of the step is uniform with the thickness of the upper.

As a further development of the invention, the edge of the step is provided with a convexly curved guide portion.

As a further improvement of the invention, the notch is an inclined plane which inclines outwards from the inside of the insole.

As a further improvement of the present invention, a shoe including a middle sole of an overshoe comprises an upper, a middle sole and a sole, wherein the middle sole is disposed between the upper and the sole, and the middle sole is the middle sole of an overshoe according to any one of claims 1 to 5.

As a further improvement of the present invention, a method of manufacturing a shoe including an overshoe midsole,

step 1: making the upper surface into an inward turning of the upper in advance;

step 2: connecting the pre-turned upper surface with the step of the middle bottom edge of the shoe to form a flat attaching surface;

and step 3: covering the connected upper surface and the connected middle sole on a fixed shoe tree;

and 4, step 4: polishing the upper foot, gluing the binding surface, and then binding the shoe sole;

and 5: and (5) pressing and reinforcing, and taking down the finished shoe after the glue is firmly adhered.

As a further improvement of the present invention, a method of manufacturing a shoe including an overshoe midsole,

step 1: making the upper surface into an inward turning of the upper in advance;

step 2: connecting the pre-turned upper surface with the step of the middle bottom edge of the shoe to form a flat attaching surface;

and step 3: covering the connected upper surface and the connected middle sole on a fixed shoe tree;

and 4, step 4: placing the connected upper surface and the middle sole of the overshoe into an injection mold for injection molding;

and 5: taking down the shoe tree after the injection molding material is foamed;

step 6: and taking down the finished product shoes.

As a further improvement of the present invention, a method of manufacturing a shoe including an overshoe midsole,

step 1: cutting the upper foot of the upper surface into an inclined slope surface by using a peeling machine;

step 2: making the upper surface into an inward turning of the upper in advance;

and step 3: aligning and connecting a slope surface on the shoe upper surface which is turned inwards with an inclined surface on the middle bottom edge of the shoe to form a flat attaching surface;

and 4, step 4: covering the connected upper surface and the connected middle sole on a fixed shoe tree;

and 5: polishing the upper foot, gluing the binding surface, and then binding the shoe sole;

step 6: and (5) pressing and reinforcing, and taking down the finished shoe after the glue is firmly adhered.

As a further improvement of the present invention, a method of manufacturing a shoe including an overshoe midsole,

step 1: cutting the upper foot of the upper surface into an inclined slope surface by using a peeling machine;

step 2: making the upper surface into an inward turning of the upper in advance;

and step 3: aligning and connecting a slope surface on the shoe upper surface which is turned inwards with an inclined surface on the middle bottom edge of the shoe to form a flat attaching surface;

and 4, step 4: covering the connected upper surface and the connected middle sole on a fixed shoe tree;

and 5: placing the connected upper surface and the middle sole of the overshoe into an injection mold for injection molding;

step 6: taking down the shoe tree after the injection molding material is foamed;

and 7: and taking down the finished product shoes.

The shoe upper middle sole has the advantages that when the shoe upper middle sole is arranged on the shoe upper surface, the shoe upper surface is firstly subjected to inward turning of the upper foot in advance, then the shoe upper surface which is subjected to inward turning is connected with the notch of the bottom edge of the shoe middle sole, the outer side surface of the upper foot and the plane where the contact part is located form a flat binding surface, then the upper foot and the contact part are sewn together in a sewing or gluing or nailing mode, the upper side surface of the upper foot and the plane where the contact part is located are located on the same plane, so that sewing is smoother, the processing difficulty of workers is reduced, the operation is more convenient, the efficiency is improved, and the defective rate is reduced. Later paste the sole at the binding face brush glue, paste the sole after that, the face of pasting of sole is level and smooth, and it is big to paste the area, pastes the fastness height to level and level with foot contact surface, the feel travelling comfort is high, does not have the gap between sole and the shoes insole after pasting well, shoes high quality, long service life.

Drawings

FIG. 1 is a schematic structural view of a midsole of an overshoe of the invention;

FIG. 2 is a schematic view of the structure of the upper surface of the shoe and the insole of the overshoe after sewing;

FIG. 3 is a schematic view of the upper surface and the upper foot;

FIG. 4 is a schematic cross-sectional view of the toe cap of the upper when folded over the steps of the midsole of the overshoe;

FIG. 5 is a cross-sectional schematic view of a midsole gap of the overshoe in the form of a staircase;

FIG. 6 is a cross-sectional view of the toe cap of the upper when folded over the sloped surface of the midsole of the overshoe;

FIG. 7 is a cross-sectional schematic view of the midsole gap of the overshoe as an incline;

FIG. 8 is a schematic structural view of the cross section of the toe cap of the cold-bonded shoe after the sole is adhered thereon:

FIG. 9 is a schematic structural view of a cross section of a toe cap of a cold-bonded shoe using a conventional midsole, after the toe cap is bonded to the sole:

FIG. 10 is a schematic cross-sectional view of a rear toe cap manufactured by injection molding;

FIG. 11 is a schematic view of a conventional midsole mounted on an injection mold having a low degree of fitting;

FIG. 12 is a schematic view of a conventional midsole mounted on an injection mold having a high degree of fitting;

FIG. 13 is a schematic view of a construction of a shoe midsole of the present invention when fitted to an injection mold having a high degree of fitting.

Description of the labeling: 1. a midsole; 2. a notch; 21. a step; 210. an arc-shaped guide part; 22. an inclined surface; 3. a collision part.

Detailed Description

The invention will be further described in detail with reference to the following examples, which are given in the accompanying drawings.

Referring to fig. 1 to 13, a midsole for an overshoe according to the present embodiment includes: shoe insole 1, the side of going up of shoe insole 1 levels, the downside edge of shoe insole 1 is equipped with the breach 2 that holds the group's foot of upper of a shoe face, breach 2 extends and the annular seals along 1 edge direction in shoe insole, the middle zone that breach 2 surrounded is conflict portion 3, and when the group's foot of upper of a shoe face was buckled and is imbedded in breach 2, group's foot of upper of a shoe face formed a level binding face with conflict portion 3.

Through the technical scheme, when giving the upper of a shoe face on shoes insole 1, do the inside turn of group's foot earlier with the upper of a shoe face in advance, then will be in advance the upper of a shoe face of adversion and the breach 2 at 1 edge in shoes insole link together, group's foot lateral surface forms smooth binding face with the plane at 3 places of conflict portion this moment, later make up or mode such as sticky or nailing, sew up group's foot and conflict portion 3 together, group's foot is gone up the plane at side and 3 places of conflict portion and is in the coplanar messenger and sew up more smoothly, reduce staff's processing degree of difficulty, it is more convenient to operate, and raise the efficiency, reduce the defective percentage. Later paste the sole at the binding face brush glue, paste the sole after that, the face of pasting of sole is level and smooth, and it is big to paste the area, pastes the fastness height to level and level with foot contact surface, the feel travelling comfort is high, paste the sole after good and do not have the gap in the shoes insole 1, shoes high quality, long service life. The sole and the insole 1 can be firmly adhered without a 10-15mm foot upper. The process avoids the cold-bonding process of shoes, a sole ground of 10-15mm is required to be used as a surface which is bonded with a sole, otherwise, the bonding of the shoes and the sole is not firm, glue can be opened (the separation of the surface and the sole is caused), and the process is used for manufacturing the conventional insole 1, and has the following problems that the insole 1 is connected with the upper surface, the sole ground surrounds the edge of the insole 1, so that the upper of the insole 1 at the edge part of the insole 1 protrudes downwards, the middle part of the insole 1 is relatively sunken, the surface which is bonded with the sole is an uneven surface, when glue is applied to the sole, the sole is bonded with the upper and the sole at the edge, the middle part of the insole 1 is bonded with the sole, at the moment, the middle area of the insole 1 is sunken, the contact surface with the foot is uneven, the comfortable sensation of the foot is low, a gap exists between the bonded insole 1 and the sole, and the insole 1 is easy to, the quality of the shoes is low and the service life is short.

As a modified specific embodiment, the notch 2 is provided for the step 21.

Through above-mentioned technical scheme, the shoes insole 1 that ladder 21 set up processes conveniently in earlier stage to the vamp is turned over easily and is aimed at after rolling over, and then connects vamp and shoes insole 1, and follow-up processing is convenient, and is more high-efficient.

In a modified embodiment, the width of the step 21 is uniform, and the height of the step 21 is uniform with the thickness of the upper.

Through the technical scheme, the width of the notch 2 is consistent, the height of the turned upper foot at the edge of the upper face is consistent in a circle, the turned upper foot of the turned upper face is tightly attached to the groove wall of the notch 2, the formed connecting surface is flat, the turned width is consistent in a circle when the upper foot is turned, the position of the upper face does not need to be adjusted for many times when the upper foot is turned, and the operation is convenient. The height of the ladder 21 is consistent and equal to the thickness of the upper surface, and a flat binding surface can be formed by folding, so that the use is convenient.

As a modified embodiment, the edge of the notch 2 is provided with a convex arc-shaped guide part 210.

Through above-mentioned technical scheme, the edge of breach 2 is equipped with the arc guide portion 210 of evagination, accords with the shape that the position was buckled when the vamp face turns over more to the vamp foot turns over the contact surface bigger between and breach 2 when rolling over, and the laminating degree is higher, has avoided arris and vamp friction, avoids the friction internal damage of department of buckling, extension shoes life.

As a modified specific embodiment, the notch 2 is an inclined surface 22 which inclines outwards from the inner side of the insole 1.

Through above-mentioned technical scheme, the inclined plane 22 is laminated with the group's foot of peeling to area of contact is big, and joint strength is high, and group's foot is peeled back fluff, and the fastness after pasting is higher between 1 with the shoes insole. The binding surface formed by connecting the peeled shoe upper and the inclined surface 22 is smooth, the sole is convenient to adhere, and the firmness is high after the shoe upper and the sole are adhered.

A shoe comprising a package insole, which comprises an upper surface, an insole 1 and a sole, wherein the insole 1 is arranged between the upper surface and the sole, and the insole 1 is the package insole as claimed in any one of claims 1 to 5.

Through above-mentioned technical scheme, the face of pasting of sole is leveled, and it is big to paste the area, pastes the fastness height to level and level with foot contact surface, the feel travelling comfort of foot is high, paste the sole after good and do not have the gap in the shoes insole 1, shoes high quality, long service life.

As an improved embodiment, a method of manufacturing a shoe including an overshoe midsole,

step 1: making the upper surface into an inward turning of the upper in advance;

step 2: connecting the pre-turned upper surface with the step 21 at the edge of the insole 1 to form a flat binding surface;

and step 3: covering the connected upper surface and the insole 1 on a fixed shoe tree;

and 4, step 4: polishing the upper foot, gluing the binding surface, and then binding the shoe sole;

and 5: and (5) pressing and reinforcing, and taking down the finished shoe after the glue is firmly adhered.

Through the technical scheme, the upper of the upper surface is turned and folded, the upper surface is bent to enable the upper to be embedded into the ladder 21, the upper is tightly attached to the ladder 21, the plane where the outer side surface of the upper and the contact part 3 are located is located at a flat attaching surface, then the upper side surface of the upper and the plane where the contact part 3 is located are located at the same plane to enable sewing/nailing to be smoother, the processing difficulty of workers is reduced, the operation is more convenient, the efficiency is improved, the accuracy is high, the defective rate is reduced, the upper surface and the insole 1 are sleeved on a shoe tree from the toe position of the fixed shoe tree, then the adhering is carried out, the adhering surface of the sole is flat, the adhering area is large, the adhering firmness is high, the contact surface with the sole is flat, the foot feeling comfort is high, no gap exists between the adhered sole and the insole 1, the shoe has high quality and long service life.

As an improved embodiment, a method of manufacturing a shoe including an overshoe midsole,

step 1: making the upper surface into an inward turning of the upper in advance;

step 2: connecting the pre-turned upper surface with the step 21 at the edge of the insole 1 to form a flat binding surface;

and step 3: covering the connected upper surface and the insole 1 on a fixed shoe tree;

and 4, step 4: placing the connected upper surface and the insole 1 into an injection mold for injection molding;

and 5: taking down the shoe tree after the injection molding material is foamed;

step 6: and taking down the finished product shoes.

Through the technical scheme, the upper of the upper surface is turned and folded, the upper surface is bent to enable the upper to be embedded into the ladder 21, the upper is tightly attached to the ladder 21, the outer side surface of the upper and the plane where the abutting part 3 is located are located at a flat attaching surface, then the upper and the plane where the abutting part 3 is located are connected together in a sewing/adhering/nailing mode, the upper side surface of the upper and the plane where the abutting part 3 is located are located at the same plane to enable sewing/nailing to be smoother, the processing difficulty of workers is reduced, the operation is more convenient, the efficiency is improved, the accuracy is high, the defective rate is reduced, the upper surface and the insole 1 are sleeved on a shoe tree from the toe position of the fixed shoe tree, then injection molding is carried out, meanwhile, the thickness of the position of the ladder 21 is small, wrinkles of the upper surface at the toe position and the heel position are small when the upper surface is bent, and further the sewn insole 1 and the injection mold are, the matching degree with the mold is higher, and the gap between the mold and the upper surface after mold closing and extrusion is small, so that the injection molding material is prevented from leaking from the gap between folds; when the upper surface of the shoe is sewn by the existing insole 1, the wrinkles at the positions of the toe cap and the heel are large, the wrinkle part is in a dog tooth shape and high in hardness, if the fitting degree of an injection mold is high (the concave edge of the wrinkle is used as the fitting surface to manufacture the injection mold), the wrinkles can be flattened by closing the mold in use (the mold is time-consuming and labor-consuming in the method), the wrinkles are crushed, the wrinkle amplitude is large and cannot be flattened, defective products are caused, if the fitting degree of the injection mold is low (the convex edge of the wrinkle is used as the fitting surface to manufacture the injection mold), the mold closing is simple in use, and the injection molding materials leak from gaps of the wrinkles; when the middle sole of the overshoe disclosed by the invention is used, the distance of the raised wrinkles generated at the toe cap part and the heel part is small, the upper die is conveniently molded by a die with high attaching degree, fine wrinkles can be pressed smoothly, the wrinkle amplitude is fine, the wrinkles can be directly pressed smoothly, the defective rate is low, and meanwhile, the condition of material leakage of injection molding materials does not exist, so that the process steps of subsequently cleaning the leaked foaming materials are reduced, and the efficiency is improved. The materials are foamed to enter the upper surface and the middle sole 1 to connect the upper surface and the middle sole into a whole, the connection strength is high, no adhesion is needed, and the pollution is reduced.

As an improved embodiment, a method of manufacturing a shoe including an overshoe midsole,

step 1: cutting the upper foot of the upper surface into an inclined slope surface by using a peeling machine;

step 2: making the upper surface into an inward turning of the upper in advance;

and step 3: aligning and connecting the slope on the pre-turned upper surface with the inclined surface 22 at the edge of the insole 1 to form a flat attaching surface;

and 4, step 4: covering the connected upper surface and the insole 1 on a fixed shoe tree;

and 5: polishing the upper foot, gluing the binding surface, and then binding the shoe sole;

step 6: and (5) pressing and reinforcing, and taking down the finished shoe after the glue is firmly adhered.

Through the technical scheme, the upper of the upper surface is firstly peeled by the peeling machine, then the upper of the upper surface is turned and folded, the slope bending of the upper surface is attached to the inclined plane 22 of the insole 1, the plane of the outer side surface of the upper and the plane of the contact part 3 are positioned at the flat attaching surface, then the upper side surface of the upper and the plane of the contact part 3 are positioned at the same plane, so that the sewing/nailing is smoother, the processing difficulty of workers is reduced, the operation is more convenient, the efficiency is improved, the precision is high, the defective rate is reduced, then the upper surface and the insole 1 are sleeved on a shoe tree from the toe position of a fixed shoe tree, the adhesion is carried out, the adhesion surface of the sole is flat, the adhesion area is large, the adhesion is high, the contact surface with the foot is flat, the foot feeling comfort is high, no gap is formed between the adhered sole and the insole 1, the quality of the shoe is high, and the service life is long.

As an improved embodiment, a method of manufacturing a shoe including an overshoe midsole,

step 1: cutting the upper foot of the upper surface into an inclined slope surface by using a peeling machine;

step 2: making the upper surface into an inward turning of the upper in advance;

and step 3: aligning and connecting the slope on the pre-turned upper surface with the inclined surface 22 at the edge of the insole 1 to form a flat attaching surface;

and 4, step 4: covering the connected upper surface and the insole 1 on a fixed shoe tree;

and 5: placing the connected upper surface and the insole 1 into an injection mold for injection molding;

step 6: taking down the shoe tree after the injection molding material is foamed;

and 7: and taking down the finished product shoes.

Through the technical scheme, the upper of the upper surface is peeled by the peeling machine, then the upper of the upper surface is turned and folded, the slope bending of the upper surface is attached to the inclined surface 22 of the insole 1, the plane of the outer side surface of the upper and the plane of the contact part 3 are in a flat attachment surface, then the upper side surface and the plane of the contact part 3 are in the same plane, so that the sewing/nailing is smoother, the processing difficulty of workers is reduced, the operation is more convenient, the efficiency is improved, the precision is high, the defective rate is reduced, the upper surface and the insole 1 are sleeved on a shoe tree from the toe position of a fixed shoe tree, then the injection molding is carried out, meanwhile, the thickness of the position 22 of the inclined surface is small, and the wrinkles of the foot of the upper surface at the toe position and the heel position are small when the foot of the upper surface is bent, further ensuring that the sewed insole 1 and upper surface of the shoe are more attached to the injection mold, the matching degree with the mold is higher, and the gap between the sewed insole 1 and upper surface of the shoe is small after the mold is closed and extruded, so that the injection molding material is prevented from leaking from the gap between folds; when the upper surface of the shoe is sewn by the existing insole 1, the wrinkles at the positions of the toe cap and the heel are large, the wrinkle part is in a dog tooth shape and high in hardness, if the fitting degree of an injection mold is high (the concave edge of the wrinkle is used as the fitting surface to manufacture the injection mold), the wrinkles can be flattened by closing the mold in use (the mold is time-consuming and labor-consuming in the method), the wrinkles are crushed, the wrinkle amplitude is large and cannot be flattened, defective products are caused, if the fitting degree of the injection mold is low (the convex edge of the wrinkle is used as the fitting surface to manufacture the injection mold), the mold closing is simple in use, and the injection molding materials leak from gaps of the wrinkles; when the middle sole of the overshoe disclosed by the invention is used, the distance of the raised wrinkles generated at the toe cap part and the heel part is small, the upper die is conveniently molded by a die with high attaching degree, fine wrinkles can be pressed smoothly, the wrinkle amplitude is fine, the wrinkles can be directly pressed smoothly, the defective rate is low, and meanwhile, the condition of material leakage of injection molding materials does not exist, so that the process steps of subsequently cleaning the leaked foaming materials are reduced, and the efficiency is improved. The materials are foamed to enter the upper surface and the middle sole 1 to connect the upper surface and the middle sole into a whole, the connection strength is high, no adhesion is needed, and the pollution is reduced.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.