Shoe with local welt and shoemaking process of shoe

Abstract

The shoe comprises a shoe outsole, a shoe seed sole and a vamp, a cavity is formed in the shoe outsole, penetrating through holes are formed in the front end face and the rear end face of the cavity and communicated with the outside, welt protrusions are arranged on the left side edge and the right side edge of the cavity, and protective parts are arranged at the positions, not provided with the welt protrusions, of the shoe outsole. The bottom of the vamp is connected with the bottom of the shoe insole through the connecting part to form a shoe cavity for a foot to penetrate through, and the shoe insole and the shoe outsole are pressed into a whole after the adhesive in the cavity is heated. According to the shoe, the waterproofness of the connection of the vamp and the sole is improved, the protection of the toe cap and the heel is enhanced, the attractiveness of the shoe is further improved, the invention further provides a shoemaking process of the shoe, and the shoe is convenient to manufacture.

Description

Technical Field

[0001] The invention relates to a pair of shoes provided with a partial welt and a shoemaking process of the shoe. Background Art

[0002] Shoes are items worn on the feet to prevent the feet from being hurt. The earliest shoes were mostly straw sandals and cloth shoes. Later, with the development of science and technology, materials such as plastics were also applied to the production of shoes. In the existing shoemaking process, injection-molded shoes generally first have the soles injection-molded, and then the soles are bonded to the shoe body using a cold bonding process. For shoes with welts, after the soles and the shoe body are bonded, the welts are bonded to the outside of the connection between the soles and the shoe body. Not only is the process complicated and the work efficiency is low, but the connection effect is not ideal, the soles and the shoe body are easily debonded and separated, the connection between the welts and the soles and the shoe body is not very firm, and they are easy to fall off. At the same time, there are problems such as unevenness and non-fitting with the shoe body after the welts are bonded, which affects the quality of the shoes. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a shoe with a partial edge strip, which improves the waterproofness of the connection between the upper and the sole and enhances the protection of the toe and the heel. A shoemaking process for the shoe is also provided to facilitate the manufacture of the shoe.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a shoe with a partial edge strip, including an outsole, a midsole and an upper, a concave cavity is provided on the outsole, and the front and rear end surfaces of the concave cavity are provided with through holes connected to the outside, the left and right side edges of the concave cavity are provided with edge strip protrusions, and the positions of the outsole where no edge strip protrusions are provided are provided with protective parts, the bottom of the upper is connected to the bottom of the midsole through a connecting part to form a shoe cavity for the foot to penetrate, and the midsole and the outsole are pressed into one after the adhesive in the concave cavity is heated.

[0005] Furthermore, the cavity is extended upwardly to be provided with a plurality of hemispherical protrusions, and the bottom of the midsole is provided with hemispherical grooves corresponding to the protrusions.

[0006] Furthermore, the protective member comprises a metal sheet sandwiched between the midsole and the outsole, the lower end surface of the metal sheet is provided with an extended claw close to the cavity, and the end of the extended claw is sleeved on the hemispherical protrusion.

[0007] Furthermore, the outer edge of the metal sheet is bent to fit with the edge of the midsole of the shoe.

[0008] Furthermore, the outer edge of the metal sheet is detachably connected with upper and lower blocking pieces, the upper blocking piece fits the shape of the upper, and the lower blocking piece fits the outer peripheral edge of the outsole and can cover the through hole.

[0009] Furthermore, the connecting portion includes an extended fabric extending from the bottom of the upper, the extended fabric is wrapped with a card block, and the midsole is provided with a card slot corresponding to the card block.

[0010] Furthermore, the welt protrusion is integrally formed with the outsole, and the welt protrusion includes a retaining wall close to one side of the cavity and a platform connected to the retaining wall.

[0011] A shoemaking process for making shoes with partial welts comprises the following steps:

[0012] S1: Making the outsole of the shoe, installing the heating element in the concave cavity, and the heating element is not started at this time;

[0013] S2: making protective parts, installing the protective parts on the outsole of the shoe and laying adhesive;

[0014] S3: manufacturing a shoe midsole and a shoe upper, connecting the shoe midsole and the shoe upper to form a shoe cavity, and inserting the rear shoe last into the shoe cavity;

[0015] S4: The heating element is taken out after being started, and the midsole and outsole are pressed together to form a whole;

[0016] S5: Check the whole and repair the unbonded parts;

[0017] S6: Bend the metal sheet or install upper and lower baffles.

[0018] Furthermore, the multiple heating parts are each composed of a bendable and changeable strip formed by spirally winding multiple heating wires, and the multiple heating parts are commonly provided with a cleaning ring, which is installed at the through hole and is used to scrape the hot melt adhesive attached to the heating part and leave it in the concave cavity when the heating part is pulled out.

[0019] Beneficial effects:

[0020] 1. Welt protrusions are provided on the left and right sides of the outsole. The outsole without welt protrusions is provided with protective parts. The waterproofness between the outsole and the upper is enhanced by the joint action of the welt protrusions and the protective parts.

[0021] 2. The protective part includes a metal sheet, and the metal sheet is arranged in two types. The first type is to bend the outer edge of the metal sheet or the second type is to have upper and lower baffles detachably connected to the edge of the metal sheet. The second type of upper and lower baffles can fully wrap the toe and heel position, protect the toe and heel, prevent collision and thus protect the toes, and the setting of the protective part also increases the aesthetics of the shoes.

[0022] 3. A shoemaking process is also provided, which adopts a method different from the traditional shoemaking process, and improves the connection firmness between the upper, the midsole and the outsole during the process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of a shoe without upper and lower baffles;

[0024] Figure 2 A schematic diagram of a shoe with upper and lower baffles;

[0025] Figure 3 It is a schematic diagram of a shoe outsole and a shoe midsole;

[0026] Figure 4 It is a schematic diagram of the connection between the upper and the midsole;

[0027] Figure 5 It is a top view of the connection between the metal sheet and the outsole of the shoe;

[0028] Figure 6 This is a schematic diagram of the first type of metal sheet;

[0029] Figure 7 A schematic diagram of a protective member with upper and lower baffles;

[0030] Figure 8 Schematic diagram of the distribution of the heating part on the outsole of the shoe.

[0031] Figure numerals: 1, outsole; 11, concave cavity; 12, hemispherical protrusion; 2, midsole; 21, hemispherical groove; 22, slot; 3, upper; 4, through hole; 5, protrusion along the edge; 51, retaining wall; 52, platform; 6, protective member; 61, metal sheet; 62, extended claw; 7, upper baffle; 8, lower baffle; 9, connecting part; 91, extended fabric; 92, block; 10, heating member; 101, heating part; 102, cleaning ring. DETAILED DESCRIPTION

[0032] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0033] Refer to Figure 1-Figure 7As shown, the present invention provides a shoe with a partial welt, including an outsole 1, a midsole 2 and an upper 3. The bottom of the upper 3 is connected to the bottom of the midsole 2 through a connecting portion 9 to form a shoe cavity for the foot to enter. The connecting portion 9 includes an extended fabric 91 extending from the bottom of the upper 3. The extended fabric 91 is wrapped with a clamping block 92. The midsole 2 is provided with a clamping groove 22 corresponding to the clamping block 92, thereby realizing the connection between the upper 3 and the midsole 2. The outsole 1 is provided with a concave cavity 11, and an adhesive is provided in the concave cavity 11. The midsole 2 is heated by the adhesive to The bottom 2 with the upper 3 bottom is pressed together with the outsole 1 to form a complete shoe body. The front and rear end surfaces of the cavity 11 are provided with through holes 4 to communicate with the outside. The left and right sides of the cavity 11 are provided with edge protrusions 5. The edge protrusions 5 are formed integrally with the outsole 1, avoiding the problem of the prior art that the edge and the outsole 1 are easily debonded and separated by bonding. The edge protrusions 5 include a retaining wall 51 close to one side of the cavity 11 and a platform 52 connected to the retaining wall 51. The retaining ring is used for waterproofing, and the platform 52 is used to make the sole not too thick visually. The toe and heel of the outsole 1 without the edge protrusions 5 are provided with protective parts 6. Since the toe and heel are most likely to be invaded by rainwater in rainy weather or the joints between the upper 3 and the outsole are easily leaking, the protective parts 6 are provided for protection. The left and right sides are waterproofed by the edge protrusions 5. The cavity 11 is extended upwardly to be provided with a plurality of hemispherical protrusions 12, and the bottom of the midsole 2 is provided with hemispherical grooves 21 corresponding to the protrusions, so that the adhesive can fully press the midsole 2 and the outsole 1 firmly during the pressing process.

[0034] Refer to Figure 5 , Figure 6 As shown, the protective member 6 includes a metal sheet 61 sandwiched between the midsole 2 and the outsole 1. The lower end surface of the metal sheet 61 is provided with an extended claw near the concave cavity 11. The end of the extended claw is sleeved on the hemispherical protrusion 12 to limit the position of the metal sheet 61 to prevent the metal sheet 61 from being offset during the pressing process. The edge of the metal sheet 61 is bent to fit the edge of the midsole 2, and then the upper 3 is set between the bent part of the metal sheet 61 and the midsole 2. By setting the bent part of the metal sheet 61, the joint between the upper 3 and the midsole 2 can be protected, and the overall appearance of the shoe is enhanced.

[0035] Refer to Figure 7As shown, the outer edge of the metal sheet 61 is detachably connected with the upper and lower baffles 8, the upper baffle 7 extends downward and is provided with a plurality of first bending strips, the edge of the metal sheet 61 is provided with a socket corresponding to the bending strip, and a second bending strip is provided between adjacent sockets, the first bending strip is inserted into the socket, bent outwards and then bent toward the upper end surface of the metal sheet 61, so that the upper baffle 7 is connected to the metal sheet 61, and the lower baffle 8 is provided with a through hole corresponding to the second bending strip, the second bending strip passes through the through hole 4 and is bent outwards and then bent toward the upper end surface of the metal sheet 61, so that the lower baffle 8 is connected to the metal sheet 61, in order to strengthen the connection between the upper baffle 7, the lower baffle 8 and the metal sheet 61, glue can be used to firmly bond at the connection. By setting the upper baffle 7 and the lower baffle 8, the strength of the toe and the heel of the shoe is increased, and it is not easy to collapse while improving the protection. A hot melt adhesive can be provided between the upper baffle 7 and the lower baffle 8 to form a bond with the side of the upper 3 and the outsole 1, or Velcro can be used to achieve connection (belonging to the prior art, not shown in the attached drawings).

[0036] The present invention provides a shoe-making process, comprising the following steps:

[0037] S1: manufacturing a shoe outsole 1, installing a heating element 10 in a concave cavity 11, wherein the heating element 10 is not started; S2: manufacturing a protective element 6, installing the protective element 6 on the shoe outsole 1 and laying an adhesive;

[0038] S3: manufacturing the midsole 2 and the upper 3, connecting the midsole 2 and the upper 3 to form a shoe cavity through the connecting portion 9, and inserting the rear shoe last into the shoe cavity;

[0039] S4: The heating element 10 is started and then taken out, and the midsole 2 and the outsole 1 are pressed together to form a whole;

[0040] S5: Check the whole and repair the unbonded parts;

[0041] S6: Bend the metal sheet 61 or install the upper and lower baffles 8 .

[0042] Furthermore, the multiple heating parts 101 are each composed of a bendable and changeable strip formed by spirally winding multiple heating wires. The multiple heating parts 101 are commonly movably sleeved with a cleaning ring 102. The cleaning ring 102 is installed at the through hole 4 and is used to scrape the hot melt adhesive attached to the heating part 101 and leave it in the concave cavity 11 when the heating part 101 is pulled out.

[0043] Specifically, the specific finished product manufacturing of the outsole 1, the upper 3, and the midsole 2 are all prior art, and no further description is given here. To manufacture the outsole 1, the heating element 10 is inserted into the concave cavity 11 through the through hole 4 in advance, and ... Figure 8As shown, the heating element 10 contains a plurality of heating parts 101, and the position of the heating part 101 is adjusted according to the position of the concave cavity 11. The heating part 101 is composed of a plurality of heating wires spirally wound to form a bendable and changeable strip. The heating wires can also adjust the position to ensure that the hot melt adhesive sheet or hot melt adhesive particles are fully heated and melted to produce viscosity. At this time, the heating element 10 is not started to heat; make a protective member 6, place a metal sheet 61 on the outsole 1 and put the extended claws on the metal sheet 61 on the hemispherical protrusion 12 on the concave cavity 11, limit the extended claws of the metal sheet 61 in the concave cavity 11, and then lay the hot melt adhesive sheet or hot melt adhesive particles in the concave cavity 11; make a midsole 2 and an upper 3, and the bottom edge of the upper 3 is passed through The extended fabric 91 wraps the card block 92, and the card block 92 with the extended fabric 91 is inserted into the bottom card slot 22 of the midsole 2, so that the upper 3 and the midsole 2 form a shoe cavity, and the shoe last is inserted into the shoe cavity for subsequent pressing; according to the degree of control over the melting time of the hot melt adhesive sheet or the hot melt adhesive particles, the midsole 2 can be aligned with the outsole 1, and the cavity 11 can be formed into a relatively closed cavity, and the heating element 10 can be started and heated to the degree that the hot melt adhesive melts, and the heating element 10 is taken out. During the removal process, the hot melt adhesive attached to the heating part 101 is scraped off by the cleaning ring 102 and left in the cavity 11, and then the through hole 4 is sealed, and the midsole 2 is pressed downward against the sole and the protrusion 5 along the strip is pressed horizontally, so that the upper 3, the midsole 2 and the outsole 1 are pressed into a whole to form a complete shoe. Alternatively, the hot melt adhesive sheet or hot melt adhesive particles are melted by the heating element 10, and then the heating element 10 is taken out and the midsole 2 and the outsole 1 are quickly aligned and pressed together to form a complete shoe. This sequence can ensure that the hot melt adhesive particles are fully melted to increase the tightness of the midsole 2 and the outsole 1. The unbonded part of the raised edge strip and the upper 3 is then bonded by waterproof glue; after checking the whole and finding no problem, the metal sheet 61 is bent or the upper and lower baffles 8 are installed, and the part without the edge strip is protected by the metal sheet 61 or together with the upper and lower baffles 8.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A shoe with a partial welt, comprising an outsole, a midsole and an upper, characterized in that: A concave cavity is provided on the outsole, and through holes are provided on the front and rear end surfaces of the concave cavity to communicate with the outside. Edges of the left and right sides of the concave cavity are provided with edge protrusions. Protective parts are provided at the positions of the outsole where no edge protrusions are provided. The bottom of the upper is connected to the bottom of the midsole through a connecting part to form a shoe cavity for the foot to enter. After the adhesive in the concave cavity is heated, the midsole and the outsole are pressed into one.

2. The shoe with partial welt according to claim 1, characterized in that: The cavity is extended upwardly to be provided with a plurality of hemispherical protrusions, and the bottom of the midsole is provided with hemispherical grooves corresponding to the protrusions.

3. The shoe with partial welt according to claim 2, characterized in that: The protective element comprises a metal sheet sandwiched between the midsole and the outsole, the lower end surface of the metal sheet is provided with an extended claw close to the concave cavity, and the end of the extended claw is sleeved on the hemispherical protrusion.

4. The shoe with partial welt according to claim 3, characterized in that: The outer edge of the metal sheet is bent and fits with the edge of the midsole of the shoe.

5. The shoe with partial welt according to claim 3, characterized in that: The outer edge of the metal sheet is detachably connected with upper and lower blocking sheets, the upper blocking sheet fits the shape of the upper, and the lower blocking sheet fits the outer peripheral edge of the outsole and can cover the through hole.

6. The shoe with partial welt according to claim 4 or 5, characterized in that: The connecting portion comprises an extended fabric extending from the bottom of the upper, the extended fabric is wrapped with a clamping block, and the midsole is provided with a clamping groove corresponding to the clamping block.

7. The shoe with partial welt according to claim 6, characterized in that: The welt protrusion is integrally formed with the shoe outsole, and the welt protrusion comprises a retaining wall close to one side of the concave cavity and a platform connected to the retaining wall.

8. A shoemaking process for making the shoe with partial welt as claimed in claim 7, characterized in that: The following steps are involved: S1: Making the outsole of the shoe, installing the heating element in the concave cavity, and the heating element is not started at this time; S2: making protective parts, installing the protective parts on the outsole of the shoe and laying adhesive; S3: manufacturing a shoe midsole and a shoe upper, connecting the shoe midsole and the shoe upper to form a shoe cavity, and inserting the rear shoe last into the shoe cavity; S4: The heating element is taken out after being started, and the midsole and outsole are pressed together to form a whole; S5: Check the whole and repair the unbonded parts; S6: Bend the metal sheet or install upper and lower baffles.

9. The shoemaking process according to claim 8, characterized in that: The multiple heating parts are all composed of a bendable and changeable strip formed by spirally winding multiple heating wires. The multiple heating parts are jointly sleeved with a cleaning ring, which is installed at the through hole and is used to scrape the hot melt adhesive attached to the heating part and leave it in the concave cavity when the heating part is pulled out.

Images