One-piece injection molding process for manufacturing the welt and insole of a shoe mold

Abstract

The present invention relates to a manufacturing process for a molded welt insole with integral perfusion molding, including: Step 1: Slitting and blanking to produce a first semi-finished welt; Step 2: Coloring to produce a second semi-finished welt; Step 3: Cutting to produce a third semi-finished welt; Step 4: Modifying the contour and space to produce a fourth semi-finished welt; Step 5: Pre-cutting to produce a fifth semi-finished welt; Step 6: Strip cutting to cut into a sixth semi-finished welt; Step 7: Bonding the joint to produce a seventh semi-finished welt; Step 8: Applying glue to the back of the seventh semi-finished welt and applying glue to the upper surface of the shaped insole; Step 9: Hot pressing and forming, the seventh semi-finished welt is pressed and formed with the shaped insole according to a preset shape to produce a finished molded welt insole; wherein the order of Steps 2-5 can be adjusted arbitrarily. The welt of the molded welt insole made according to this process can be pre-shaped according to the requirements of the injection shoe model. During injection molding, there is no need for excessive adjustment, which is simpler, time-saving and labor-saving.

Description

Technical Field

[0001] The present invention relates to the field of injection-molded shoes, and particularly to a manufacturing process for a molded welt midsole of an integrally-injected molded shoe mold. Background Art

[0002] PU (poly urethane) injection-molded shoes are integrally formed in a mold. When adding a welt in the traditional molding process, the cut welt needs to be gradually pressed into the mold step by step, which is time-consuming and laborious and has a high defect rate, making mass production impossible. Summary of the Invention

[0003] Therefore, a manufacturing process for a molded welt midsole of an integrally-injected molded shoe mold is needed to solve the problem of difficulty in adding a welt in the existing injection-molded shoe production process.

[0004] To achieve the above object, the inventor provides a manufacturing process for a molded welt midsole of an integrally-injected molded shoe mold, including the following steps: Step 1: Strip and cut the material. Cut the original welt leather material into a width and thickness that meet the preset requirements to make a first semi-finished welt. Step 2: Color. Color the semi-finished welt made in the previous step to make a second semi-finished welt. Step 3: Cut incisions. Cut a number of vertically-through first incisions spaced apart on the outer side of the semi-finished welt made in the previous step to make the welt easy to bend, and make a third semi-finished welt. Step 4: Trim the accommodation space. Trim an accommodation space for accommodating the corresponding protrusions of the sole on the semi-finished welt made in the previous step to make a fourth semi-finished welt. Step 5: Pre-cut. Cut a non-through second incision from top to bottom, or cut a non-through and non-connected third incision from top to bottom and a fourth incision from bottom to top on the semi-finished welt made in the previous step to form a pre-tearing opening. The second incision divides the semi-finished welt into a reserved part and a to-be-torn part, or the third incision and the fourth incision divide the semi-finished welt into a reserved part and a to-be-torn part to make a fifth semi-finished welt. Step 6: Cut the strip. Cut the semi-finished welt made in the previous step into a sixth semi-finished welt according to a predetermined size. Step 7: Glue the joints. Glue the docking joints at both ends of the sixth semi-finished welt together with glue to make a seventh semi-finished welt. Step 8: Brush glue on the back of the seventh semi-finished welt and brush glue on the upper surface of the shaped midsole. Step 9: Hot press and form. After the seventh semi-finished welt brushed with glue is heated in a heating box, it is pressed and formed with the shaped midsole according to a preset shape to make a finished molded welt midsole; wherein the order of steps 2-5 can be adjusted arbitrarily.

[0005] Different from the prior art, the technical solution of this application presses and shapes the welt and the shaped insole together to finally form a molded welt insole. The welt of the molded welt insole made according to this process can be pre-shaped according to the requirements of the injection shoe model and can be directly placed in the corresponding mold during the integral molding of the injection shoe, which is simpler, time-saving and labor-saving compared with the prior art of gradually pressing the welt into the mold. Moreover, a pre-tear opening is provided on the welt of the molded welt insole made by this process. After the molded welt insole is fixed between the shoe upper and the sole, the part to be removed can be torn off through this pre-tear opening, which is convenient and fast.

[0006] Preferably, after the step 1 and before the steps 2-5, the following steps are further included: Step A: Open the thin edge of the welt. Cut out the thin edge of the welt for manufacturing the retaining wall from the first semi-finished welt to make an L-shaped semi-finished welt a; Step B: Glue the cutting surface of the semi-finished welt a. Coat glue on the cutting surface of the semi-finished welt a; Step C: Heat before standing the retaining wall. Place the semi-finished welt a coated with glue in a drying tunnel for heating and baking to soften the welt and dry the glue; Step D: Stand the retaining wall. Turn up the thin edge of the semi-finished welt a that has been heated and baked, then bend it downwards, and form a retaining wall after gluing it to the welt body with glue to make a semi-finished welt b with a retaining wall.

[0007] Preferably, 3%-5% curing agent is added to the glue used in the step B.

[0008] Preferably, the drying tunnel is 8-12m long, and the semi-finished welt a passes through the drying tunnel at a uniform speed of 8-12m / min.

[0009] Preferably, the drying tunnel is 10m long, the semi-finished welt a passes through the drying tunnel at a speed of 10m / min, the temperature of the first 4m of the drying tunnel is 70-100°C, and the temperature of the last 6m of the drying tunnel is 90-120°C.

[0010] Preferably, after the step 1 and before the step 6, the following steps are further included: Step E: Open a groove. Open a groove for sewing on the semi-finished welt made in the previous step to make a semi-finished welt c with a sewing groove; Step F: Sew. Sew in the groove of the semi-finished welt made in the previous step to make a semi-finished welt d.

[0011] Preferably, before step E, after step F, or between step E and step F, there is also step G: roughing, roughening the bottom of the semi-finished welt made in the previous step to form a semi-finished welt e; after steps E, F, and G are completed, there are also: step H: applying glue to the bottom of the semi-finished welt made in the previous step; step I: pasting the bottom, pasting a small strip for covering the bottom line holes formed by the stitching on the bottom of the semi-finished welt made in the previous step to form a semi-finished welt f.

[0012] Preferably, step 6 is specifically to obliquely cut the semi-finished welt made in the previous step to form a butting joint with a joint surface width of 15 - 20 MM; step 7 is specifically to apply a treatment agent on the joint surface of the butting joint, after baking and drying in an oven, apply glue on the joint surface, and after baking and drying in the oven again, glue the butting joints at both ends of the sixth semi-finished welt together.

[0013] Preferably, in step 7, gluing the butting joints at both ends of the sixth semi-finished welt together specifically means first manually aligning the joint surfaces of the butting joints for preliminary bonding, and then placing it on a press for pressing, with the air pressure between 0.4 Pa and 0.8 Pa and the pressing time being 1 - 10 S.

[0014] Preferably, in step 5, the second cut or the third cut and the fourth cut are perpendicular to the upper and lower surfaces of the welt, and the depths of the third cut and the fourth cut are the same. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to the drawings without creative efforts.

[0016] FIG. 1 is a front schematic view when strip cutting is performed in this embodiment;

[0017] FIG. 2 is a three-dimensional schematic view of the first semi-finished welt in this embodiment;

[0018] FIG. 3 is a cross-sectional schematic view when the thin edge of the welt is opened in this embodiment;

[0019] FIG. 4 is a three-dimensional schematic view of the semi-finished welt a in this embodiment;

[0020] FIG. 5 is a three-dimensional schematic view of the semi-finished welt b in this embodiment;

[0021] FIG. 6 is a three-dimensional schematic view of the semi-finished welt c in this embodiment;

[0022] Figure 7 is a three-dimensional schematic diagram of the semi-finished welt d of this embodiment;

[0023] Figure 8 is a bottom view of the semi-finished welt d of this embodiment;

[0024] Figure 9 is a bottom view of the semi-finished welt f of this embodiment;

[0025] Figure 10 is a three-dimensional schematic diagram of the third semi-finished welt of this embodiment;

[0026] Figure 11 is a three-dimensional schematic diagram of the fourth semi-finished welt of this embodiment;

[0027] Figure 12 is a three-dimensional schematic diagram of the fifth semi-finished welt of this embodiment;

[0028] Figure 13 is a schematic diagram of the position of the second incision of this embodiment;

[0029] Figure 14 is a schematic diagram of the positions of the third and fourth incisions of another embodiment;

[0030] Figure 15 is a three-dimensional schematic diagram of the sixth semi-finished welt of this embodiment;

[0031] Figure 16 is a three-dimensional schematic diagram of the seventh semi-finished welt of this embodiment;

[0032] Figure 17 is a plan schematic diagram of the finished molded welt insole of this embodiment. Explanation of reference numerals:

[0033] 10. Original welt leather; 20. First semi-finished welt; 30. Semi-finished welt a; 31. Thin edge;

[0034] 40. Semi-finished welt b; 41. Retaining wall; 50. Semi-finished welt c; 51. Groove; 60. Semi-finished welt d; 61. Stitch; 70. Semi-finished welt f; 71. Strip; 80. Third semi-finished welt; 81. First incision; 90. Fourth semi-finished welt; 91. Accommodating space; 100. Fifth semi-finished welt; 101. Second incision; 102. Third incision; 103. Fourth incision; 110. Sixth semi-finished welt; 111. Bonding surface; 120. Seventh semi-finished welt; 130. Molded insole. Detailed implementation manners

[0035] To describe in detail the technical content, structural features, achieved objectives and effects of the technical solution, the following is a detailed description in conjunction with specific embodiments and with reference to the accompanying drawings.

[0036] In the description of the present application, unless otherwise clearly specified and defined, the terms "first", "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance; unless otherwise specified or stated, the term "plurality" means two or more; the terms "connection", "fixation", etc. shall be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0037] In the description of this specification, it should be understood that the orientation terms such as "upper", "lower", "left", "right", etc. described in the embodiments of the present application are described from the angles shown in the drawings and should not be construed as limiting the embodiments of the present application. In addition, in the context, it should also be understood that when it is mentioned that one element is connected "above" or "below" another element, it can not only be directly connected "above" or "below" another element, but also be indirectly connected "above" or "below" another element through an intermediate element.

[0038] The present invention provides a manufacturing process for an integrally potted and molded shoe sole welt midsole. Please refer to FIGS. 1 to 17:

[0039] A manufacturing process for a PU integrally potted and molded shoe sole welt midsole includes the following steps:

[0040] Step 1: Slitting and blanking. Cut the original welt leather 10 with a suitable thickness into a rectangular strip-shaped first semi-finished welt 20 that meets the preset width.

[0041] Step A: Opening the thin edge of the welt. Cut a small long strip A from the first semi-finished welt 20 to cut out the thin edge 31 of the welt for manufacturing the retaining wall 41, and make an L-shaped semi-finished welt a30; (the thickness of the thin edge 31 of the welt in this embodiment is 1.3 mm).

[0042] Step B: Gluing the cut surface of the semi-finished welt a30. Coat the cut surface of the semi-finished welt a30 with PU glue, and 3%-5% curing agent is added to the PU glue; adding the curing agent can further increase the adhesiveness between the thin edge 31 of the welt and the welt body, making it more stable.

[0043] Step C: Heating in front of the retaining wall. Place the semi-finished product coated with glue along strip a30 in a drying oven for heating and baking to dry the glue and soften the strip. The drying oven in this embodiment is 10 m long. The semi-finished product strip a30 passes through the drying oven at a uniform speed of 10 m / min. The temperature of the first 4 m of the drying oven is 70 - 100 °C, and the temperature of the last 6 m of the drying oven is 90 - 120 °C. The function of the front section of the drying oven is to dry the glue, and the main function of the rear section is to preheat the strip. (The specific temperature of the drying oven can be adjusted accordingly according to the air temperature in the factory; in other embodiments, the drying oven can be set within the range of 8 - 12 m, and accordingly the semi-finished product strip a30 passes through the drying oven at a uniform speed of 8 - 12 m / min, and accordingly the temperature of the first 3.5 - 5.5 m of the drying oven is 70 - 100 °C, and accordingly the temperature of the last 5.5 - 6.5 m of the drying oven is 90 - 120 °C.)

[0044] Step D: Erecting the retaining wall. Flip the thin edge 31 of the semi-finished product strip a30 that has been heated and baked upwards and then bend it downwards, and form the retaining wall 41 by gluing it to the strip body with glue, thus making the semi-finished product strip b40 with the retaining wall 41. (The retaining wall 41 formed by the thin edge 31 of the strip is integral with the upper layer of the strip, without gaps, so it is not easy to have problems such as glue opening.)

[0045] Step E: Grooving. Open a groove 51 for sewing on the semi-finished product strip b40 to make the semi-finished product strip c50 with the sewing groove 51.

[0046] Step 2: Coloring. Spray the paint of the corresponding shape color on the semi-finished product strip c50 to make the second semi-finished product strip.

[0047] Step F: Sewing. Sew in the groove 51 of the second semi-finished product strip, sew the sewing thread (61) into the groove 51, and accordingly form corresponding sewing thread protrusions on the front corresponding to the groove 51 to make the semi-finished product strip d60.

[0048] Step G: Roughening. Roughen the bottom of the semi-finished product strip d60 to increase the tensile force with the PU material to form the semi-finished product strip e. (Specifically, in this implementation, the bottom of the semi-finished product strip d60 is lightly roughened with an 80 - grit sanding belt.)

[0049] Step H: Gluing the bottom of the semi-finished product strip f70. (Specifically, 706N glue is used in this implementation.) Step I: Lining. Stick a small strip 71 on the bottom of the semi-finished product strip e to cover the bottom line holes formed by sewing to form the semi-finished product strip f70. (The small strip 71 can prevent the PU material from overflowing from the line holes during the injection molding of the shoe mold.)

[0050] Step 3: Incision. Cut a plurality of first incisions 81 that penetrate up and down at intervals on the outer side of the semi-finished welt f70 to make the welt easily bendable, and form a third semi-finished welt 80; (Specifically, in this embodiment, a flat knife is used to cut the first incisions 81. The distance between several first incisions 81 is 2.5 - 3 MM, and the depth is 2 - 5.0 MM. The first incisions 81 make the welt easily bendable to facilitate the shaping of the upper mold. Second, it makes the injection molding process easy to exhaust air.)

[0051] Step 4: Contouring space. Cut a receiving space 91 for receiving the corresponding protrusions of the sole on the third semi-finished welt 80 to form a fourth semi-finished welt 90; (Specifically, in this embodiment, a U-shaped or arc-shaped cutter and a 90-degree right-angle cutter are used. The depth of the receiving space 91 is 2.0 - 4.0 MM, and the width is 1.5 - 2.5 MM.)

[0052] Step 5: Pre-cut. Cut a non-penetrating second incision 101 from top to bottom on the fourth semi-finished welt 90. The second incision 101 divides the semi-finished welt into a reserved part and a to-be-torn part, and form a fifth semi-finished welt 100; the second incision 101 is perpendicular to the upper and lower surfaces of the welt; (Specifically, in this embodiment, the thickness of the non-cut part at the bottom of the second incision 101 to the welt is 0.8 mm. In other embodiments, a non-penetrating and non-connected third incision 102 from top to bottom and a fourth incision 103 from bottom to top can be cut on the fourth semi-finished welt 90 to form a pre-tearing opening; the third incision 102 and the fourth incision 103 divide the fourth semi-finished welt 90 into a reserved part and a to-be-torn part. The third incision 102 and the fourth incision 103 are perpendicular to the upper and lower surfaces of the welt, and the depths of the third incision 102 and the fourth incision 103 are the same. The thickness of the non-cut part between the third incision 102 and the fourth incision 103 is 0.8 mm.)

[0053] Step 6: Strip cutting. Cut the fifth semi-finished welt 100 into a sixth semi-finished welt 110 according to a predetermined size. Specifically, in this embodiment, the fifth semi-finished welt 100 is obliquely cut to form a sixth semi-finished welt 110 with the width of the joint surface 111 being 8 - 18 MM; (Oblique cutting can increase the area of the joint surface 111 to increase the joint tensile force and make it more firm after bonding.)

[0054] Step 7: Bond the joints. Glue the docking joints at both ends of the sixth semi-finished product along the strip 110 together. After applying a treatment agent on the bonding surface 111 of the docking joint and baking it dry in an oven, apply PU glue on the bonding surface 111, and then bake it dry in the oven again. Then glue the joints at both ends of the sixth semi-finished product along the strip 110 together. Specifically, in this embodiment, first manually align the bonding surface 111 of the docking joint for preliminary bonding, and then place it on a press for pressing. The air pressure is between 0.4 Pa and 0.8 Pa, and the pressing time is 1 - 10 s to make the seventh semi-finished product along the strip 120; (Specifically, the treatment agent used in this embodiment is 2003TF, and the oven temperature is 150 °C).

[0055] Step 8: Brush glue on the back of the seventh semi-finished product along the strip 120 and brush glue on the upper surface of the shaped insole 130 cloth; (Specifically, in this embodiment, use 577H to brush the back step of the seventh semi-finished product along the strip 120, and the distance of applying glue is 4 MM to 6 MM; the glue used on the upper surface of the shaped insole 130 is yellow glue, PU glue or hot melt glue, etc. with an adhesive force of more than 4500 cps).

[0056] Step 9: Hot press and form. After the seventh semi-finished product along the strip 120 with glue brushed on is heated in a heating box, press and form it with the shaped insole 130 according to a preset shape to make the finished molded strip insole. (Specifically, the temperature of the heating box in this embodiment is 50 °C. Heating the seventh semi-finished product along the strip 120 before pressing can soften the material and make it easy to press into the mold; after the seventh semi-finished product along the strip 120 and the shaped insole 130 cloth are press-molded, the shape of the strip is fixed).

[0057] Producing according to the sequence of this embodiment, the steps are the most reasonable, the efficiency is the highest, and the quality of the produced products is the best.

[0058] The above embodiments are one of the manufacturing processes of the integral injection-molded shoe molded strip insole. Among them, the order of steps E, step 2, step F, and step G can be adjusted arbitrarily, but step F must be after step E; the order of steps 3, step 4, and step 5 can be adjusted arbitrarily; to form other embodiments.

[0059] The technical solution of this application presses the welt and the shaped insole into a molded welt insole. The welt of the molded welt insole made according to this process can be pre-shaped according to the requirements of the injection shoe model. When the injection shoe is integrally formed, it can be directly placed in the corresponding mold without much adjustment, which is simpler, time-saving and labor-saving compared with the prior art of gradually pressing the welt into the mold. Moreover, a pre-tear opening is provided on the welt of the molded welt insole made by this process. After the molded welt insole is fixed between the shoe upper and the sole, the part to be removed can be torn off through this pre-tear opening, which is convenient and fast. A pre-tear opening is provided on the welt of the molded welt insole made by this process. After the molded welt insole is fixed between the shoe upper and the sole, the part to be removed can be torn off through this pre-tear opening, which is convenient and fast. The thin edge of the welt and the upper layer of the welt of the molded welt insole made by this process are integrated without gaps. Therefore, the retaining wall formed by the thin edge of the welt is not likely to have problems such as glue opening.

[0060] It should be noted that although the above embodiments have been described in this article, the patent protection scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, any changes and modifications made to the embodiments described in this article, or equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present invention, and directly or indirectly applying the above technical solutions to other related technical fields, are all included in the protection scope of the present invention patent.

Claims

1. A manufacturing process for an integral injection-molded shoe sole welt and insole, characterized in that, It includes the following steps: Step 1: Slitting and cutting, cutting the original welt leather (10) into strips with a width meeting a preset requirement to make the first semi-finished welt (20); Step 2: Coloring, coloring the semi-finished welt made in the previous step to make the second semi-finished welt; Step 3: Notching, cutting a plurality of first notches (81) which are arranged at intervals and penetrate up and down on the outer side of the semi-finished welt made in the previous step to make the welt easily bendable, and making the third semi-finished welt (80); Step 4: Contouring and creating a receiving space, creating a receiving space (91) for accommodating the sole protrusion on the semi-finished welt made in the previous step to make the fourth semi-finished welt (90); Step 5: Pre-cutting, cutting a non-penetrating second notch (101) from top to bottom, or cutting a non-penetrating and non-connected third notch (102) from top to bottom and a fourth notch (103) from bottom to top on the semi-finished welt made in the previous step to form a pre-tearing opening; the second notch (101) divides the semi-finished welt into a reserved part and a to-be-torn part, or the third notch (102) and the fourth notch (103) divide the semi-finished welt into a reserved part and a to-be-torn part, and making the fifth semi-finished welt (100); Step 6: Strip cutting, cutting the semi-finished welt made in the previous step into a sixth semi-finished welt (110) according to a predetermined size; Step 7: Gluing the joints, gluing the docking joints at both ends of the sixth semi-finished welt (110) together with glue to make the seventh semi-finished welt (120); Step 8: Brushing glue on the back of the seventh semi-finished welt (120), and brushing glue along the edge on the upper surface of the shaped midsole (130); Step 9: Hot pressing and forming, after the seventh semi-finished welt (120) with glue brushed is heated in a heating box, pressing and forming it with the shaped midsole (130) according to a preset shape to make a finished molded welt midsole; Among them, the order of steps 2-5 can be adjusted arbitrarily.

2. The manufacturing process of an integrally potted and molded shoe sole welt insole according to claim 1, characterized in that, After step 1 and before steps 2-5, the following steps are further included: Step A: Cutting the thin edge of the welt, cutting a welt thin edge (31) for manufacturing the retaining wall (41) from the first semi-finished welt (20) to make an L-shaped semi-finished welt a (30); Step B: Gluing the cutting surface of the semi-finished welt a, coating glue on the cutting surface of the semi-finished welt a (30); Step C: Pre-heating before erecting the retaining wall, placing the semi-finished welt a (30) coated with glue in a drying tunnel for heating and baking to dry the glue and soften the welt; Step D: Erecting the retaining wall, turning up the welt thin edge (31) of the semi-finished welt a (30) after heating and baking, then bending it downwards, and gluing it on the welt body with glue to form the retaining wall (41), and making a semi-finished welt b (40) with the retaining wall (41).

3. The manufacturing process of an integrally potted and molded shoe sole welt insole according to claim 2, characterized in that, The glue used in step B is added with 3%-5% curing agent.

4. The manufacturing process of the integral injection-molded shoe sole welt according to claim 2, characterized in that, The drying tunnel is 8-12 m long, and the semi-finished welt a (30) passes through the drying tunnel at a constant speed of 8-12 m / min.

5. The manufacturing process of an integrally potted and molded shoe sole welt and insole according to claim 4, characterized in that, The drying tunnel is 10 m long. The semi-finished strip a (30) passes through the drying tunnel at a uniform speed of 10 m / min. The temperature of the first 4 m of the drying tunnel is 70 - 100 °C, and the temperature of the last 6 m of the drying tunnel is 90 - 120 °C.

6. The manufacturing process of the integral injection-molded shoe sole welt insole according to claim 1, characterized in that, After step 1 and before step 6, the following steps are further included: Step E: Grooving, a groove (51) for threading is opened on the semi-finished strip made in the previous step to make a semi-finished strip c (50) with a threading groove (51). Step F: Threading, threading is carried out in the groove (51) of the semi-finished strip made in the previous step to make a semi-finished strip d (60).

7. The manufacturing process of an integral injection-molded shoe sole welt insole according to claim 6, characterized in that, Before step E, after step F, or between step E and step F, step G is further included: Roughing, the bottom of the semi-finished strip made in the previous step is roughened to form a semi-finished strip e. After steps E, F, and G are completed, the following are included: Step H: Gluing the bottom of the semi-finished strip made in the previous step. Step I: Bottom pasting, a small strip (71) for covering the bottom line holes formed by threading is pasted on the bottom of the semi-finished strip made in the previous step to form a semi-finished strip f (70).

8. The manufacturing process of an integrally potted and molded shoe sole welt insole according to claim 1, characterized in that, Step 6 specifically is to obliquely cut the fifth semi-finished strip (100) to make a sixth semi-finished strip (110) with a joint surface (111) width of 8 - 18 mm; step 7 specifically is to apply a treatment agent on the joint surface (111) of the joint, after baking and drying in an oven, then apply glue on the joint surface (111), and after baking and drying in an oven again, glue the joints at both ends of the sixth semi-finished strip (110) together.

9. The manufacturing process of an integrally potted insole welt for a shoe mold according to claim 8, characterized in that, In step 7, gluing the joints at both ends of the sixth semi-finished strip (110) together specifically means first manually aligning the joint surfaces (111) of the joints for preliminary bonding, and then placing it on a press for pressing. The air pressure is between 0.4 Pa and 0.8 Pa, and the pressing time is 1 - 10 S.

10. A manufacturing process for an integrally potted and molded welt and insole of a shoe mold according to any one of claims 1-9, characterized in that, In step 5, the second cut (101) or the third cut (102) and the fourth cut (103) are perpendicular to the upper and lower surfaces of the strip, and the depths of the third cut (102) and the fourth cut (103) are the same.

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