Midsole foaming small blank mold
By designing a symmetrical foaming space and appropriate feed hole locations in the shoe midsole foaming small embryo mold, the full expansion of the foaming material in three dimensions is achieved, solving the problem of unstable size and shape of existing molds under different materials and materials, and improving product quality and production efficiency.
Patent Information
- Application Number
- CN202421747992.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-23
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-07-23
AI Technical Summary
Existing foam molds have magnification differences and material shrinkage problems under different foaming materials and materials, which affect the size and shape of the product.
A small foaming mold for midsole of shoe is designed, including two symmetrically arranged foaming spaces between the upper mold and the bottom mold. The material path is arranged along the width direction of the foaming space. The projection of the first and second feed holes is located at the middle waist of the foaming space, so as to realize the full expansion of the foaming material in the three dimensions of X, Y, and Z.
Through this design, the foaming material is fully expanded in three dimensions, which improves the dimensional stability and variability of the product, and effectively improves the production efficiency and product quality.
Smart Images
Figure CN222779903U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of shoe midsole preparation, in particular to a shoe midsole foaming embryo mold. Background Art
[0002] The principle of supercritical physical foaming technology is an emerging physical foaming technology with broad development prospects. It has been applied in many fields, such as the sports shoe industry. In the process of preparing the midsole, the pre-prepared supercritical fluid medium is first injected into a special foaming mold to allow the medium to be fully and evenly mixed / diffused with the molten raw materials to form a single-phase mixed sol. Then, by changing the pressure, the medium is precipitated to form a large number of bubble nuclei. In the subsequent cooling and molding process, the bubble nuclei inside the sol are continuously grown and formed by adjusting and controlling the parameters, and finally a qualified microporous foaming product is obtained.
[0003] However, the existing foaming molds have problems with ratio differences and material shrinkage when using different foaming materials, which seriously affect the size and shape of the product.
[0004] Therefore, how to overcome the above technical defects is a problem that needs to be solved urgently by those skilled in the art. Utility Model Content
[0005] The utility model aims to provide a foaming mold for a midsole of a shoe, which can effectively improve the quality of the product.
[0006] In order to solve the above technical problems, the utility model provides a shoe midsole foaming embryo mold, comprising an upper mold and a bottom mold;
[0007] There are two spaced and symmetrically arranged foaming spaces between the upper mold and the bottom mold, and the upper mold is provided with a material channel, a first feed hole for connecting the material channel with one of the foaming spaces, and a second feed hole for connecting the material channel with another of the foaming spaces;
[0008] The material channel is arranged along the width direction of the foaming space, and the projections of the first material feeding hole and the second material feeding hole are respectively located on the middle waist parts of the two foaming spaces.
[0009] Optionally, in the above-mentioned shoe midsole foaming embryo mold, at least one of the upper mold and the bottom mold is provided with a vacuum hole and a vacuum groove for connecting the vacuum hole and the two foaming spaces.
[0010] Optionally, in the above-mentioned shoe midsole foaming embryo mold, the foaming space is arranged on the opposite surfaces of the upper mold and the bottom mold, or the foaming space is only arranged on the bottom mold.
[0011] Optionally, in the above-mentioned shoe midsole foaming embryo mold, a mounting groove is opened at the bottom of the bottom mold, and an automatic telescopic mechanism is arranged in the mounting groove. The automatic telescopic mechanism retracts into the mounting groove in a contracted state, and pushes the shoe midsole foaming embryo mold away from an external heating device in an extended state.
[0012] Optionally, in the above-mentioned shoe midsole foaming embryo mold, the automatic telescopic mechanism includes a spring, an electromagnetic coil and an armature, the electromagnetic coil is arranged at the bottom of the mounting groove, one end of the spring is arranged at the bottom of the mounting groove and the other end is provided with the armature.
[0013] Optionally, in the above-mentioned shoe midsole foaming embryo mold, one end of the upper mold and the bottom mold are rotatably connected, and the other end of the upper mold and the bottom mold are connected by a buckle mechanism;
[0014] And / or, the upper mold is provided with a handle.
[0015] Optionally, in the above-mentioned shoe midsole foaming embryo mold, at least one positioning column is provided on one of the upper mold and the bottom mold, and a positioning hole matching the positioning column is provided at a relative position of the other of the upper mold and the bottom mold.
[0016] Optionally, in the above-mentioned shoe midsole foaming embryo mold, a positioning groove for clamping with an external heating device is provided on the side of the bottom mold.
[0017] Optionally, in the above-mentioned shoe midsole foaming embryo mold, the shoe midsole foaming embryo mold is an aluminum mold or a steel mold.
[0018] Optionally, in the above-mentioned shoe midsole foaming embryo mold, the upper mold and the bottom mold are both rectangular structures.
[0019] The utility model provides a shoe midsole foaming embryo mold, which has the following beneficial effects:
[0020] Two foaming spaces for foaming and molding of foaming materials are arranged between the upper mold and the bottom mold. The foaming materials are introduced into the material channel, and the foaming materials enter the two foaming spaces through the first feeding hole and the second feeding hole respectively. Since the material channel is arranged along the width direction of the foaming space, the projections of the first feeding hole and the second feeding hole are respectively located on the middle waist of the two foaming spaces, which can realize the full expansion of the foaming materials in the three dimensions of X, Y and Z in the foaming space, effectively improving the production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.
[0022] Figure 1 A side view of a shoe midsole foaming embryo mold provided by an embodiment of the utility model;
[0023] Figure 2 A front view of a shoe midsole foaming embryo mold provided in an embodiment of the utility model.
[0024] In the above picture:
[0025] 100-upper die; 110-material channel; 120-first material feed hole; 130-second material feed hole;
[0026] 200- bottom mold; 210- foaming space;
[0027] 310-vacuum hole; 320-vacuum groove;
[0028] 400-Automatic telescopic mechanism;
[0029] 500- snap mechanism;
[0030] 600-Handle. DETAILED DESCRIPTION
[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0032] The core of the utility model is to provide a foaming mold for a midsole of a shoe, which can effectively improve the quality of the product.
[0033] In order to enable those skilled in the art to better understand the technical solution provided by the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0034] Specifically, please refer to Figure 1-Figure 2 The utility model provides a shoe midsole foaming embryo mold, which includes an upper mold 100 and a bottom mold 200.
[0035] There are two spaced and symmetrically arranged foaming spaces 210 between the upper mold 100 and the bottom mold 200. The shape of the foaming space 210 is consistent with the shape of the midsole after molding. The structure of the mold / foaming space 210 can be designed according to the shape and size of the small blank. The upper mold 100 is provided with a material channel 110, a first feed hole 120 for connecting the material channel 110 and one foaming space 210, and a second feed hole 130 for connecting the material channel 110 and another foaming space 210.
[0036] The material channel 110 is arranged along the width direction of the foaming space 210, and the projections of the first feed hole 120 and the second feed hole 130 are respectively located on the middle waist parts of the two foaming spaces 210. Compared with the prior art that sets the filling point of the material gun head at the sole position of the mold, this solution sets the material channel 110 corresponding to the material gun head on the middle waist part of the foaming space 210 of the mold, which can realize the expansion of the foaming material in three directions of X, Y and Z, and can ensure good dimensional stability and variability. It should be noted that the X direction is the width direction of the small embryo, the Y direction is the length direction of the small embryo, and the Z direction is the thickness direction of the small embryo.
[0037] The shoe midsole foaming embryo mold provided by the utility model has two foaming spaces 210 for foaming and molding of foaming materials between the upper mold 100 and the bottom mold 200. The foaming materials are introduced into the material channel 110, and the foaming materials enter the two foaming spaces 210 through the first feed hole 120 and the second feed hole 130 respectively. Since the material channel 110 is arranged along the width direction of the foaming space 210, the projections of the first feed hole 120 and the second feed hole 130 are respectively located on the middle waist parts of the two foaming spaces 210, which can realize the full expansion of the foaming materials in the three dimensions of the X direction, the Y direction and the Z direction in the foaming space 210, and effectively improve the production efficiency and product quality.
[0038] In a specific embodiment, at least one of the upper mold 100 and the bottom mold 200 is provided with a vacuum hole 310 and a vacuum groove 320 for connecting the vacuum hole 310 and the two foaming spaces 210. An external vacuum device is connected to the vacuum hole 310 to extract the internal air of the foaming space 210 to prevent oxidation reaction from occurring during the foaming process and affecting the molding quality of the shoe midsole. The projection of the vacuum hole 310 can be located on the center line of the front ends of the two foaming spaces 210 and extend to the top of the foaming space 210 through the vacuum groove 320.
[0039] In a specific embodiment, the foaming space 210 is arranged on the opposite surfaces of the upper mold 100 and the bottom mold 200, or the foaming space 210 is only arranged on the bottom mold 200, and can be adaptively designed according to the shape and size of the shoe midsole blank.
[0040] On the basis of the above specific embodiment, a mounting groove is provided at the bottom of the bottom mold 200, and an automatic telescopic mechanism 400 is provided in the mounting groove. The automatic telescopic mechanism 400 retracts into the mounting groove in a contracted state, and pushes the shoe midsole foaming embryo mold away from the external heating device in an extended state. The external heating device cover is arranged outside the shoe midsole foaming embryo mold to heat the mold.
[0041] Of course, the automatic telescopic mechanism 400 can also adopt other mechanism forms, as long as it can achieve elongation after the processing of the shoe midsole foaming embryo mold is completed, thereby pushing the shoe midsole foaming embryo mold outward.
[0042] Furthermore, the automatic telescopic mechanism 400 includes a spring, an electromagnetic coil and an armature, wherein the electromagnetic coil is arranged at the bottom of the mounting groove, one end of the spring is arranged at the bottom of the mounting groove and the other end is provided with an armature. When the electromagnetic coil is energized, a magnetic force that attracts the armature is generated, thereby compressing the spring, so that the electromagnetic coil and the armature are attracted together, and the automatic telescopic mechanism 400 is in a contracted state. When the electromagnetic coil is de-energized, the magnetic force that attracts the armature disappears, and the armature extends out of the mounting groove under the elastic force of the spring, pushing the shoe midsole foaming embryo mold away from the external heating device.
[0043] In a specific embodiment, one end of the upper mold 100 and the bottom mold 200 are rotatably connected to realize that the two can be flipped open and closed, and the other end of the upper mold 100 and the bottom mold 200 are connected by a buckle mechanism 500 to realize closure in the use state. Among them, a hinge mechanism is provided at the connection of one end of the upper mold 100 and the bottom mold 200, and the rotatable connection is realized by the hinge mechanism.
[0044] In addition, the upper mold 100 may also be equipped with a handle 600 to facilitate the movement of the shoe midsole foaming embryo mold and to assist the upper mold 100 in opening and closing relative to the bottom mold 200.
[0045] In order to achieve accurate alignment of the upper mold 100 and the bottom mold 200, at least one positioning column is provided on one of the upper mold 100 and the bottom mold 200, and a positioning hole matching the positioning column is provided at a relative position of the other of the upper mold 100 and the bottom mold 200. The number and position of the positioning column and the positioning hole correspond one to one, and both can be provided with one or more.
[0046] Similarly, in order to facilitate the accurate positioning of the midsole foaming embryo mold and the external heating device, a positioning groove for engaging with the external heating device is provided on the side of the bottom mold 200. Correspondingly, a positioning protrusion is provided at the relative position of the external heating device. The number and position of the positioning groove and the positioning protrusion correspond one to one, and both can be provided with one or more.
[0047] Specifically, the mold for the foaming embryo of the midsole can be made of steel or aluminum, which can withstand high pressure and temperature. The density of aluminum is small, which can reduce the weight of the mold and facilitate transportation and operation. At the same time, aluminum has good heat dissipation performance, which can effectively reduce the temperature of the mold during use and extend the service life of the mold.
[0048] like Figure 2 As shown, the upper mold 100 and the bottom mold 200 are both rectangular structures, which are convenient for production.
[0049] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, inside, outside, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0050] In the description of this application, the meaning of "plurality" is more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and it cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0051] In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.
[0052] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.
[0053] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.
[0054] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.
Claims
1. A shoe midsole foaming embryo mold, characterized in that: Including upper mold and bottom mold; There are two spaced and symmetrically arranged foaming spaces between the upper mold and the bottom mold, and the upper mold is provided with a material channel, a first feed hole for connecting the material channel with one of the foaming spaces, and a second feed hole for connecting the material channel with another of the foaming spaces; The material channel is arranged along the width direction of the foaming space, and the projections of the first material feeding hole and the second material feeding hole are respectively located on the middle waist parts of the two foaming spaces.
2. The shoe midsole foaming embryo mold according to claim 1, characterized in that: At least one of the upper mold and the bottom mold is provided with a vacuum hole and a vacuum groove for connecting the vacuum hole and the two foaming spaces.
3. The shoe midsole foaming embryo mold according to claim 1, characterized in that: The foaming space is arranged on opposite surfaces of the upper mold and the bottom mold, or the foaming space is only arranged on the bottom mold.
4. The shoe midsole foaming embryo mold according to claim 1, characterized in that: A mounting groove is provided at the bottom of the bottom mold, and an automatic telescopic mechanism is arranged in the mounting groove. The automatic telescopic mechanism retracts into the mounting groove in a contracted state, and pushes the shoe midsole foaming embryo mold away from an external heating device in an extended state.
5. The shoe midsole foaming embryo mold according to claim 4, characterized in that: The automatic telescopic mechanism comprises a spring, an electromagnetic coil and an armature, wherein the electromagnetic coil is arranged at the bottom of the mounting groove, one end of the spring is arranged at the bottom of the mounting groove and the other end is provided with the armature.
6. The shoe midsole foaming embryo mold according to claim 1, characterized in that: One end of the upper mold and the bottom mold are rotatably connected, and the other end of the upper mold and the bottom mold are connected by a buckle mechanism; And / or, the upper mold is provided with a handle.
7. The shoe midsole foaming embryo mold according to claim 1, characterized in that: At least one positioning column is arranged on one of the upper die and the bottom die, and a positioning hole matching the positioning column is arranged at a relative position of the other of the upper die and the bottom die.
8. The shoe midsole foaming embryo mold according to claim 1, characterized in that: The side surface of the bottom mold is provided with a positioning groove for clamping with an external heating device.
9. The shoe midsole foaming embryo mold according to claim 1, characterized in that: The shoe midsole foaming embryo mold is an aluminum mold or a steel mold.
10. The shoe midsole foaming embryo mold according to claim 1, characterized in that: The upper mold and the bottom mold are both rectangular structures.