Manufacturing equipment and process of three-in-one moccasin

Abstract

The application discloses a manufacturing equipment for three-in-one upper-set slippers, which is used for manufacturing three-in-one upper-set slippers, and the three-in-one upper-set slippers comprise a sole, an upper and a shoe pad. The manufacturing equipment comprises a shoe tree. The bottom of the shoe tree is provided with a shoe pad positioning groove and a positioning nail. The shoe pad is arranged in the shoe pad positioning groove, and the positioning nail is arranged at the bottom of the shoe tree close to the heel and penetrates the shoe pad arranged in the shoe pad positioning groove. The upper comprises an upper surface and an auxiliary connecting fabric. The edge of the bottom of the upper surface is fixedly connected with the edge of the auxiliary connecting fabric. The upper is sleeved on the shoe tree, and the rear part of the auxiliary connecting fabric is fixed on the positioning nail. The sole is fixed at the bottom of the upper and the shoe pad positioned on the shoe tree. The application also provides a manufacturing process for the three-in-one upper-set slippers by using the manufacturing equipment. The application reduces the operation difficulty of workers, guarantees the product quality and improves the production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of slippers, and in particular to a manufacturing device and process for three-in-one slippers. Background Art

[0002] Slippers are a type of shoe with no upper on the back half. They are mostly flat-soled and are often made of very light and soft leather, plastic, cloth, etc. They are generally worn indoors.

[0003] Chinese patent CN210043271U discloses a three-in-one process for making Labang injection-molded slippers. The manufacturing process includes the following steps: Step 1: Place the insole into the insole groove on the shoe last and pierce and secure the insole with a fixing nail; Step 2: Slip the upper onto the bottom of the shoe last and pierce and secure the edge of the upper onto the fixing nail; Step 3: Place the shoe last with the upper and insole fixed together into an injection mold, and injection-mold the sole, insole, and upper together using the injection mold. However, the upper of these slippers is a semi-slip structure with an unfixed size. After the upper is put on the shoe last, the upper needs to be tightened and the two corners of the upper need to be fixed to the fixing nails. This operation is relatively difficult, requires high standards of workers, is difficult to control quality, and has low production efficiency. Summary of the Invention

[0004] In view of the defects in the prior art, the present invention provides a manufacturing device and process for three-in-one slippers, so as to reduce the difficulty of workers' operation, ensure product quality and improve production efficiency.

[0005] On the one hand, the present invention provides a manufacturing device for three-in-one slippers, which is used to manufacture three-in-one slippers. The three-in-one slippers include a sole, an upper and an insole, and the manufacturing device includes a shoe last; the bottom of the shoe last is provided with an insole positioning groove and a positioning nail, the insole is placed in the insole positioning groove, the positioning nail is provided at the bottom of the shoe last near the heel, and passes through the insole placed in the insole positioning groove; the upper includes an upper and an auxiliary connecting fabric, the edge of the bottom of the upper is fixedly connected to the edge of the auxiliary connecting fabric, the upper is put on the shoe last, and the rear part of the auxiliary connecting fabric is fixed on the positioning nail; the sole is fixed to the bottom of the upper and insole positioned on the shoe last.

[0006] When using the above-mentioned manufacturing equipment to manufacture three-in-one slippers, first place the insole in the insole positioning groove at the bottom of the shoe last, and at the same time, the positioning nail passes through the insole, so that the insole can be positioned and installed on the bottom of the shoe last. Then, the upper with auxiliary connecting fabric sewn on it is put on the shoe last, so that the bottom of the upper and the auxiliary connecting fabric are pressed on the insole, and at the same time, the positioning nail passes through the auxiliary connecting fabric to achieve the positioning and installation of the upper. Finally, the sole is fixed to the bottom of the upper and insole positioned on the shoe last, so that the sole, upper and insole can be combined together. Compared with the existing technology, this application sews auxiliary connecting fabric at the bottom of the upper, and when installing the upper, it can be directly put on the shoe last and positioned by the positioning nail. It is easy to operate, greatly reduces the difficulty of workers' operation, ensures product quality, and improves production efficiency.

[0007] Furthermore, the auxiliary connecting fabric is provided with a plurality of through holes.

[0008] Furthermore, the upper is a layered structure made of common slipper fabric or leather material.

[0009] Furthermore, the edge of the shoe last is provided on a convex edge extending from one side of the sole of the shoe last through the heel to the other side of the sole of the foot, and the insole positioning groove is formed on the inner side of the convex edge.

[0010] Furthermore, the sole is fixed to the bottom of the upper and insole positioned on the shoe last by gluing.

[0011] Furthermore, the sole is fixed to the bottom of the upper and the insole positioned on the shoe last by injection molding through an injection mold.

[0012] Furthermore, the injection mold includes a lower mold and an upper mold, the upper part of the lower mold is provided with a lower mold cavity, the shoe last is placed in the lower mold cavity, the lower part of the upper mold is provided with an upper mold cavity, the upper mold cover is provided on the lower mold, the edge of the upper mold cavity is pressed against the periphery of the bottom of the upper and insole positioned on the shoe last, and the upper mold is provided with an injection port connected to the upper mold cavity.

[0013] Furthermore, the lower mold includes a base and a lower mold frame, the lower mold cavity is formed inside the lower mold frame and is placed on the base, one end of the lower mold frame is hinged to the base, the upper mold cover is arranged on the lower mold frame, and one end of the upper mold is hinged to the base.

[0014] On the other hand, the present invention provides a manufacturing process for three-in-one slippers with an upper, using the above-mentioned manufacturing equipment, and including the following steps: step one, sewing the upper and the auxiliary connecting fabric together to form an upper with a sole; step two, placing the insole in the insole positioning groove at the bottom of the shoe last, and the positioning nails at the bottom of the shoe last pass through the insole to position the insole; step three, tightly putting the sewn upper on the shoe last, and the positioning nails at the bottom of the shoe last pass through the rear part of the auxiliary connecting fabric to position the upper; step four, gluing or injection molding the sole to the bottom of the upper and insole positioned on the shoe last.

[0015] By adopting the above manufacturing process, auxiliary connecting fabric is sewn on the bottom of the upper in advance. When installing the upper, it can be directly put on the shoe last and positioned by positioning nails. It is easy to operate, greatly reduces the difficulty of workers' operation, ensures product quality and improves production efficiency.

[0016] Furthermore, in step four, the sole is fixed to the bottom of the upper and the insole by injection molding. When injecting the sole, the shoe last with the upper and the insole is installed in the lower mold, and then the upper mold is closed. The edge of the upper mold cavity of the upper mold is pressed tightly against the periphery of the bottom of the upper and the insole, and then glue is injected into the upper mold cavity through the injection port. After the injection molding is completed, the upper mold is opened, the shoe last is taken out, and then the molded slippers are removed from the shoe last. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0018] Figure 1 This is a schematic structural diagram of a shoe upper according to an embodiment of the present invention;

[0019] Figure 2 Schematic diagram of the structure of a shoe last according to an embodiment of the present invention;

[0020] Figure 3 This is a structural schematic diagram of an insole and an upper installed on a shoe last according to an embodiment of the present invention;

[0021] Figure 4 Schematic diagram of the injection molding of the sole according to an embodiment of the present invention.

[0022] Figure 5 This is a schematic structural diagram of a finished three-in-one slipper according to an embodiment of the present invention.

[0023] In the accompanying drawings, 100-sole; 200-upper; 210-upper; 220-auxiliary connecting fabric; 221-through hole; 300-insole; 400-shoe last; 410-insole positioning groove; 411-convex edge; 420-positioning nail; 500-injection mold; 510-lower mold; 511-base; 512-lower mold frame; 520-upper mold; 530-lower mold cavity; 540-upper mold cavity. DETAILED DESCRIPTION

[0024] The following embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0025] It should be noted that, unless otherwise specified, the technical or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0026] On the one hand, if Figure 1-Figure 5 As shown, an embodiment of the present invention provides a manufacturing device for three-in-one slippers, which is used to manufacture three-in-one slippers. The three-in-one slippers include a sole 100, an upper 200 and an insole 300, and the manufacturing device includes a shoe last 400.

[0027] The bottom of the shoe last 400 is provided with an insole positioning groove 410 and a positioning nail 420. The insole 300 is placed in the insole positioning groove 410. The positioning nail 420 is provided at the bottom of the shoe last 400 near the heel and passes through the insole 300 placed in the insole positioning groove 410.

[0028] The shoe upper 200 includes an upper surface 210 and an auxiliary connecting fabric 220. The upper surface 210 can be a layered structure made of commonly used slipper fabric or leather material. The edge of the bottom of the upper surface 210 is fixedly connected to the edge of the auxiliary connecting fabric 220. The shoe upper 200 is mounted on the shoe last 400, and the rear part of the auxiliary connecting fabric 220 is fixed on the positioning nail 420.

[0029] The sole 100 is fixed to the bottom of the upper 200 and the insole 300 positioned on the shoe last 400 .

[0030] When the three-in-one slippers are manufactured using the above-mentioned manufacturing equipment, the insole 300 is first placed in the insole positioning groove 410 at the bottom of the shoe last 400, and the positioning nail 420 passes through the insole 300, so that the insole 300 can be positioned and installed on the bottom of the shoe last 400. Then, the upper 200 with the auxiliary connecting fabric 220 sewn thereon is put on the shoe last 400, so that the bottom of the upper 210 and the auxiliary connecting fabric 220 are pressed on the insole 300, and the positioning nail 420 passes through the auxiliary connecting fabric 220, so that the upper 200 can be positioned and installed on the shoe last 400. 0 is positioned and installed, and finally the sole 100 is fixed to the bottom of the upper 200 and the insole 300 positioned on the shoe last 400, so that the sole 100, the upper 200 and the insole 300 are combined together. Compared with the prior art, the present application sews an auxiliary connecting fabric 220 at the bottom of the upper 210. When installing the upper 200, it is directly put on the shoe last 400 and positioned by the positioning nails 420. The operation is convenient, which greatly reduces the difficulty of workers' operation, ensures product quality and improves production efficiency.

[0031] In a preferred embodiment, a plurality of through holes 221 are provided on the auxiliary connecting fabric 220 . By providing the through holes 221 on the auxiliary connecting fabric 220 , the front portion of the sole 100 and the front portion of the insole 300 can be tightly combined together.

[0032] In a preferred embodiment, the edge of the shoe last 400 is provided on a ledge 411 extending from one side of the sole of the foot through the heel to the other side of the sole of the foot, and an insole positioning groove 410 is formed on the inner side of the ledge 411. In this way, the ledge 411 surrounding the insole positioning groove 410 can be disconnected at the front of the shoe last 400, making it easier to remove the formed slippers from the shoe last 400.

[0033] The sole 100 can be fixed to the bottom of the upper 200 and the insole 300 positioned on the shoe last 400 by gluing, or can be fixed to the bottom of the upper 200 and the insole 300 positioned on the shoe last 400 by injection molding using an injection mold 500. Preferably, the sole 100 is fixed to the bottom of the upper 200 and the insole 300 positioned on the shoe last 400 by injection molding using an injection mold 500.

[0034] like Figure 4As shown, the injection mold 500 includes a lower mold 510 and an upper mold 520. A lower mold cavity 530 is provided on the upper part of the lower mold 510, and the shoe last 400 is placed in the lower mold cavity 530. An upper mold cavity 540 is provided on the lower part of the upper mold 520. The upper mold 520 is covered on the lower mold 510. The edge of the upper mold cavity 540 is pressed against the periphery of the bottom of the upper 200 and the insole 300 positioned on the shoe last 400. An injection port connected to the upper mold cavity 540 is provided on the upper mold 520. When injecting the sole 100, the upper mold 520 is pressed against the periphery of the bottom of the upper 200 and the insole 300 to prevent glue leakage. More preferably, the lower mold 510 includes a base 511 and a lower mold frame 512, the interior of the lower mold frame 512 forms a lower mold cavity 530 and is placed on the base 511, one end of the lower mold frame 512 is hinged to the base 511, and the upper mold 520 is covered on the lower mold frame 512, and one end of the upper mold 520 is hinged to the base 511. During the injection molding process of the sole 100, it is convenient to load or remove the shoe last 400 by opening the upper mold 520 and the lower mold frame 512.

[0035] On the other hand, an embodiment of the present invention provides a manufacturing process for three-in-one slippers, using the above-mentioned manufacturing equipment, including the following steps:

[0036] Step 1: Sewing the upper 210 and the auxiliary connecting fabric 220 together to form the shoe upper 200 with the sole;

[0037] Step 2: Place the insole 300 in the insole positioning groove 410 at the bottom of the shoe last 400, and insert the positioning nail 420 at the bottom of the shoe last 400 through the insole 300 to position the insole 300;

[0038] Step 3: Put the sewn upper 200 tightly onto the shoe last 400, and insert the positioning nails 420 at the bottom of the shoe last 400 through the rear part of the auxiliary connecting fabric 220 to position the upper 200;

[0039] Step 4: Paste or injection-mold the sole 100 on the bottom of the upper 200 and the insole 300 positioned on the shoe last 400. Preferably, the sole 100 is fixed to the bottom of the upper 200 and the insole 300 by injection molding. When injecting the sole 100, the shoe last 400 with the upper 200 and the insole 300 is installed in the lower mold 510, and then the upper mold 520 is closed. The edge of the upper mold cavity 540 of the upper mold 520 is pressed tightly against the periphery of the bottom of the upper 200 and the insole 300, and then glue is injected into the upper mold cavity 540 through the injection port. After the injection molding is completed, open the upper mold 520, take out the shoe last 400, and then remove the molded slippers from the shoe last 400.

[0040] By adopting the above-mentioned manufacturing process, the auxiliary connecting fabric 220 is sewn in advance on the bottom of the upper 210. When installing the upper 200, it can be directly put on the shoe last 400 and positioned by the positioning pins 420. This is convenient to operate, greatly reduces the difficulty of operation for workers, ensures product quality, and improves production efficiency.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A manufacturing process for three-in-one slippers, characterized by: The three-in-one slippers include a sole, an upper and an insole, and the manufacturing equipment of the three-in-one slippers includes a shoe last; The bottom of the shoe last is provided with an insole positioning groove and a positioning nail, the insole is placed in the insole positioning groove, and the positioning nail is provided at a position near the heel of the bottom of the shoe last and passes through the insole placed in the insole positioning groove; The shoe upper comprises an upper surface and an auxiliary connecting fabric, the edge of the bottom of the upper surface is fixedly connected to the edge of the auxiliary connecting fabric, the shoe upper is sleeved on the shoe last, and the rear portion of the auxiliary connecting fabric is fixed to the positioning nails, and the auxiliary connecting fabric is provided with a plurality of through holes; The sole is fixed to the bottom of the upper and insole positioned on the shoe last; The manufacturing process of the three-in-one slippers includes the following steps: Step 1: Sew the upper and auxiliary connecting fabrics together to form the upper with the sole; Step 2: Place the insole in the insole positioning groove at the bottom of the shoe last, and insert the positioning nails at the bottom of the shoe last through the insole to position the insole; Step 3: Put the sewn upper tightly on the shoe last, and insert the positioning nails at the bottom of the shoe last through the back of the auxiliary connecting fabric to position the upper; Step 4: sticking or injection molding the sole on the bottom of the upper and insole positioned on the shoe last.

2. The manufacturing process of the three-in-one slippers according to claim 1, characterized in that: The upper is a layer structure made of common slipper cloth or leather material.

3. The manufacturing process of the three-in-one slippers according to claim 1, characterized in that: The edge of the shoe last is arranged on a convex edge extending from one side of the sole of the shoe last through the heel to the other side of the sole of the foot, and the inner side of the convex edge forms the insole positioning groove.

4. The manufacturing process of the three-in-one slippers according to any one of claims 1 to 3, characterized in that: The sole is fixed to the bottom of the upper and the insole positioned on the shoe last by gluing.

5. The manufacturing process of the three-in-one slippers according to any one of claims 1 to 3, characterized in that: The sole is fixed to the bottom of the upper and the insole positioned on the shoe last through an injection mold.

6. The manufacturing process of the three-in-one slippers according to claim 5, characterized in that: The injection mold includes a lower mold and an upper mold. The upper part of the lower mold is provided with a lower mold cavity, and the shoe last is placed in the lower mold cavity. The lower part of the upper mold is provided with an upper mold cavity, and the upper mold cover is provided on the lower mold. The edge of the upper mold cavity is pressed against the periphery of the bottom of the upper and insole positioned on the shoe last. The upper mold is provided with an injection port connected to the upper mold cavity.

7. The manufacturing process of the three-in-one slippers according to claim 6, characterized in that: The lower mold includes a base and a lower mold frame. The lower mold cavity is formed inside the lower mold frame and is placed on the base. One end of the lower mold frame is hinged to the base. The upper mold cover is arranged on the lower mold frame, and one end of the upper mold is hinged to the base.

8. The manufacturing process of the three-in-one slippers according to claim 1, characterized in that: In step four, the sole is fixed to the bottom of the upper and insole by injection molding. When injecting the sole, the shoe last with the upper and insole is installed in the lower mold, and then the upper mold is closed. The edge of the upper mold cavity of the upper mold is pressed tightly against the periphery of the bottom of the upper and insole, and then glue is injected into the upper mold cavity through the injection port. After the injection molding is completed, the upper mold is opened, the shoe last is taken out, and then the molded slippers are removed from the shoe last.

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