Ultrahigh molecular weight polyethylene midsole

Abstract

The invention provides an ultra-high molecular weight polyethylene midsole. The insole is manufactured through the procedures of cutting, uniform stirring, opening, net laying, puncturing and rolling, compressing, laser cutting and the like of the ultra-high molecular weight polyethylene wires, the anti-puncturing effect of the ultra-high molecular weight polyethylene insole is good, the manufactured insole is soft in texture, and compared with a steel plate material or a metal wire net and the like, the ultra-high molecular weight polyethylene insole is light in material and low in cost. When the ultra-high molecular weight polyethylene midsole is applied to the safety shoes, the wearing comfort of the safety shoes is improved, the weight of the manufactured safety shoes is reduced, and the portability of the safety shoes is improved.

Description

Technical Field

[0001] The invention relates to the technical field of midsoles, and in particular to an ultra-high molecular weight polyethylene midsole. Background Art

[0002] The midsole is an important part of the shoe, located between the outsole and the insole, and mainly plays the role of cushioning and absorbing ground impact. Labor protection shoes are a kind of shoes that provide safety protection for the feet. There are many types of them, such as toe protection, puncture resistance, insulation, acid and alkali resistance, etc. The selection of labor protection shoes should be based on the nature and degree of hazards in the working environment. For labor protection shoes used by workers, the puncture resistance of the midsole is an important guarantee for the safety of labor protection shoes.

[0003] At present, in order to increase the puncture resistance of some existing safety shoes, steel plates or metal meshes are added to improve the puncture resistance of the midsole. Although this method can effectively prevent puncture, the material is relatively hard, which reduces the comfort of the safety shoes. In addition, the material is heavy, which further increases the weight of the safety shoes and reduces the portability of the safety shoes.

[0004] In summary, there is a need for an ultra-high molecular weight polyethylene midsole. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an ultra-high molecular weight polyethylene midsole, which solves the problems mentioned in the background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] An ultra-high molecular weight polyethylene midsole, the specific preparation process comprises the following steps:

[0008] (1) mechanically cutting the ultra-high molecular weight polyethylene fiber tow into fiber tows of 50-60 cm in length;

[0009] (2) adding the cut ultra-high molecular weight polyethylene fiber tow into a stirring machine, adding an appropriate amount of liquid medicine into the stirring machine, and uniformly stirring the cut fiber tow by the stirring machine, thereby eliminating static electricity generated during the stirring process of the ultra-high molecular weight polyethylene fiber tow under the action of the liquid medicine;

[0010] (3) adding the ultra-high molecular weight polyethylene tow after uniform stirring into an opener, and loosening the ultra-high molecular weight polyethylene tow after stirring by the opener;

[0011] (4) Laying the opened ultra-high molecular weight polyethylene filaments into a net, stacking the ultra-high molecular weight polyethylene filaments layer by layer, wherein the height of the stacked ultra-high molecular weight polyethylene filaments is 50-60 cm;

[0012] (5) passing the laid ultra-high molecular weight polyethylene filaments through a needle punching machine for 5-6 steps, and laminating the ultra-high molecular weight polyethylene filaments with a layer height of 50-60 cm to a thickness of 6-7 mm;

[0013] (6) rolling up the ultra-high molecular weight polyethylene filament layer that has been pierced and pressed to a thickness of 6-7 mm, transferring the rolled ultra-high molecular weight polyethylene filament layer to a subsequent compression device, further compressing and shaping the ultra-high molecular weight polyethylene filament layer, and compressing the ultra-high molecular weight polyethylene filament layer of 6-7 mm to a thickness of 3-4 mm;

[0014] (7) The ultra-high molecular weight polyethylene filament layer with a thickness of 3-4 mm after shaping is cut by a laser cutting machine. Under computer control, the ultra-high molecular weight polyethylene filament layer is cut into midsoles of specified shapes and sizes.

[0015] The present invention provides an ultra-high molecular weight polyethylene midsole. Compared with the prior art, it has the following beneficial effects:

[0016] The midsole of this patent is made of ultra-high molecular weight polyethylene wire through processes such as cutting, mixing, loosening, laying, piercing and rolling, compression and laser cutting. The ultra-high molecular weight polyethylene midsole not only has good anti-puncture effect, but also has a soft texture. In addition, compared with steel plate materials or metal wire mesh, the ultra-high molecular weight polyethylene is light in material. When the ultra-high molecular weight polyethylene midsole is used in labor protection shoes, it not only improves the wearing comfort of the labor protection shoes, but also reduces the weight of the labor protection shoes after production, thereby improving the lightness of the labor protection shoes. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Embodiment 1

[0019] In order to solve the technical problems in the background technology, an ultra-high molecular weight polyethylene midsole is provided as follows:

[0020] The present invention provides an ultra-high molecular weight polyethylene midsole, and the specific preparation process comprises the following steps:

[0021] (1) mechanically cutting the ultra-high molecular weight polyethylene fiber tow into fiber tows of 50-60 cm in length;

[0022] (2) adding the cut ultra-high molecular weight polyethylene fiber tow into a stirring machine, adding an appropriate amount of liquid medicine into the stirring machine, and uniformly stirring the cut fiber tow by the stirring machine, thereby eliminating static electricity generated during the stirring process of the ultra-high molecular weight polyethylene fiber tow under the action of the liquid medicine;

[0023] (3) adding the ultra-high molecular weight polyethylene tow after uniform stirring into an opener, and loosening the ultra-high molecular weight polyethylene tow after stirring by the opener;

[0024] (4) Laying the opened ultra-high molecular weight polyethylene filaments into a net, stacking the ultra-high molecular weight polyethylene filaments layer by layer, wherein the height of the stacked ultra-high molecular weight polyethylene filaments is 50-60 cm;

[0025] (5) passing the laid ultra-high molecular weight polyethylene filaments through a needle punching machine for 5-6 steps, and laminating the ultra-high molecular weight polyethylene filaments with a layer height of 50-60 cm to a thickness of 6-7 mm;

[0026] (6) rolling up the ultra-high molecular weight polyethylene filament layer that has been pierced and pressed to a thickness of 6-7 mm, transferring the rolled ultra-high molecular weight polyethylene filament layer to a subsequent compression device, further compressing and shaping the ultra-high molecular weight polyethylene filament layer, and compressing the ultra-high molecular weight polyethylene filament layer of 6-7 mm to a thickness of 3-4 mm;

[0027] (7) The ultra-high molecular weight polyethylene filament layer with a thickness of 3-4 mm after shaping is cut by a laser cutting machine. Under computer control, the ultra-high molecular weight polyethylene filament layer is cut into midsoles of specified shapes and sizes.

[0028] The surface of the ultra-high molecular weight polyethylene filaments can be coated with ENIENT rubber glue or glue can be added during the ultra-high molecular weight polyethylene melt spinning process for composite treatment, so that when the ultra-high molecular weight polyethylene filaments are used in the midsole production, the bonding and shaping between the ultra-high molecular weight polyethylene filaments can be improved.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0030] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An ultra-high molecular weight polyethylene midsole, characterized in that: The specific preparation process includes the following steps: (1) mechanically cutting the ultra-high molecular weight polyethylene fiber tow into fiber tows of 50-60 cm in length; (2) adding the cut ultra-high molecular weight polyethylene fiber tow into a stirring machine, adding an appropriate amount of liquid medicine into the stirring machine, and uniformly stirring the cut fiber tow by the stirring machine, thereby eliminating static electricity generated during the stirring process of the ultra-high molecular weight polyethylene fiber tow under the action of the liquid medicine; (3) adding the ultra-high molecular weight polyethylene tow after uniform stirring into an opener, and loosening the ultra-high molecular weight polyethylene tow after stirring by the opener; (4) Laying the opened ultra-high molecular weight polyethylene filaments into a net, stacking the ultra-high molecular weight polyethylene filaments layer by layer, wherein the height of the stacked ultra-high molecular weight polyethylene filaments is 50-60 cm; (5) passing the laid ultra-high molecular weight polyethylene filaments through a needle punching machine for 5-6 steps, and laminating the ultra-high molecular weight polyethylene filaments with a layer height of 50-60 cm to a thickness of 6-7 mm; (6) rolling up the ultra-high molecular weight polyethylene filament layer that has been pierced and pressed to a thickness of 6-7 mm, transferring the rolled ultra-high molecular weight polyethylene filament layer to a subsequent compression device, further compressing and shaping the ultra-high molecular weight polyethylene filament layer, and compressing the ultra-high molecular weight polyethylene filament layer of 6-7 mm to a thickness of 3-4 mm; (7) The ultra-high molecular weight polyethylene filament layer with a thickness of 3-4 mm after shaping is cut by a laser cutting machine. Under computer control, the ultra-high molecular weight polyethylene filament layer is cut into midsoles of specified shapes and sizes.