A shoe last

Abstract

The utility model discloses a shoe last, and the technical solution thereof mainly includes a shoe last body, a mounting plate, a flow guide iron pipe and a positioning member, wherein the shoe last body and the mounting plate are both provided with mounting holes for installing the flow guide iron pipe; the positioning member includes a limiting ring and a magnetic ring, wherein the magnetic ring is installed below the limiting ring, and the magnetic ring is used for magnetic connection with the flow guide iron pipe; the diameter of the limiting ring is larger than the diameter of the mounting hole, and the limiting ring is used for abutting against the mounting plate for limiting. The upper end of the mounting plate is provided with a mounting ring groove, and the lower end of the limiting ring is extended with an annular protrusion for being inserted into the mounting ring groove, and the shoe last can facilitate the installation of the iron pipe.

Description

Technical Field

[0001] The utility model relates to the field of shoe molds, and more specifically, to a shoe last. Background Art

[0002] The shoe last is the mother of the shoe and also the molding mold of the shoe. The shoe last not only determines the shape and style of the shoe, but also determines whether the shoe fits the foot and whether it can protect the foot. Currently, the soles of many shoes are made of rubber material, and the soles are mainly injection molded. In the actual production process, the upper is fixed on the shoe last, and then the shoe last is placed on the molding mold to form the sole fixed to the upper.

[0003] It is proposed in the prior art that an injection through hole is provided on a shoe last to improve the injection molding efficiency of shoes. For example, Chinese patent publication number CN220777570U discloses a shoe last in which a vertical iron pipe is installed in the shoe last to facilitate the flow of materials.

[0004] However, the above device has the following disadvantages: 1. It is inconvenient to dismantle and install the iron pipe, which makes the process complicated;

[0005] 2. The shape and extension of the positioning protrusion are difficult to control. When it is necessary to apply it to more occasions, the operation steps are cumbersome. Utility Model Content

[0006] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a shoe last, which can facilitate the installation of the iron pipe and the replacement of the positioning part at the lower end.

[0007] To achieve the above purpose, the utility model provides the following technical solutions: a shoe last, comprising a shoe last body, a mounting plate, a guide iron pipe and a positioning member, wherein the shoe last body and the mounting plate are both provided with mounting holes for installing the guide iron pipe;

[0008] The positioning member includes a limiting ring and a magnetic ring, wherein the magnetic ring is installed below the limiting ring and is used for magnetic connection with the guide iron pipe;

[0009] The diameter of the limiting ring is larger than the diameter of the mounting hole, and the limiting ring is used for abutting against the mounting plate for limiting position.

[0010] In summary, the utility model has the following beneficial effects: through the magnetic attraction between the magnetic ring and the guide iron pipe, and the limiting abutment between the limiting ring and the mounting plate, a limiting effect is formed on the positioning part. When the shoe last body is transferred, the guide iron pipe will not shift, thereby ensuring the stability of the equipment installation.

[0011] The design of the mounting hole and the guide iron pipe is that the guide iron pipe is inserted from the opening of the mounting plate and passes through the lower end of the shoe last body. A feed port is formed at the upper end of the mounting plate and a discharge port is formed at the lower end of the shoe last body. When the guide iron pipe is blocked, it can be replaced by simply removing the positioning piece and then poking the guide iron pipe out. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic diagram of the structure of a shoe last;

[0013] Figure 2 It is a three-dimensional structural schematic diagram of the mounting plate and the guide iron pipe;

[0014] Figure 3 It is a schematic diagram of the separation structure of the mounting plate;

[0015] Figure 4 It is a structural diagram of the installation ring groove position.

[0016] Figure numerals: 1. shoe last body; 11. extension part; 12. latch; 2. mounting plate; 21. mounting ring groove; 22. iron ring; 23. connecting hole; 3. guide iron pipe; 4. positioning member; 41. limiting ring; 411. annular protrusion; 42. magnetic ring; 5. mounting hole; 6. positioning ring; 61. positioning boss. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The same parts are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom surface" and "top surface", "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0018] Reference Figures 1 to 4 As shown, in order to achieve the above purpose, the utility model provides the following technical solutions: a shoe last, including a shoe last body 1, a mounting plate 2, a guide iron pipe 3 and a positioning member 4, and the shoe last body 1 and the mounting plate 2 are both provided with mounting holes 5 for installing the guide iron pipe 3;

[0019] The positioning member 4 includes a limiting ring 41 and a magnetic ring 42. The magnetic ring 42 is installed below the limiting ring 41. The magnetic ring 42 is used for magnetic connection with the guide iron pipe 3.

[0020] The diameter of the limiting ring 41 is greater than the diameter of the mounting hole 5 , and the limiting ring 41 is used to abut against the mounting plate 2 for limiting position.

[0021] The design of the utility model forms a limiting effect on the positioning member 4 through the magnetic attraction between the magnetic ring 42 and the guide iron pipe 3, and the limiting abutment between the limiting ring 41 and the mounting plate 2. When the shoe last body 1 is transferred, the guide iron pipe 3 will not shift, thereby ensuring the stability of the equipment installation.

[0022] The design of the mounting hole 5 and the guide iron pipe 3 is that the guide iron pipe 3 is inserted from the opening of the mounting plate 2 and passes through the lower end of the shoe last body 1. A feed port is formed at the upper end of the mounting plate 2, and a discharge port is formed at the lower end of the shoe last body 1. When the guide iron pipe 3 is blocked, it only needs to be removed by the positioning piece 4, and then the guide iron pipe 3 is poked out for replacement.

[0023] Furthermore, in order to facilitate the flow of materials into the guide iron pipe 3, a drainage slope is provided on the circumference of the limiting ring 41, and the drainage slope is used to reduce the thickness of the outer side of the limiting ring, so that the material flows along the drainage slope toward the center of the limiting ring.

[0024] The upper end of the mounting plate 2 is provided with a mounting annular groove 21, and the lower end of the limiting ring 41 is extended with an annular projection 411 for being inserted into the mounting annular groove 21. The design of the annular projection 411 and the mounting annular groove 21 can enhance the installation strength of the positioning member 4.

[0025] An iron ring 22 is arranged in the mounting ring groove 21, and the annular protrusion 411 is made of a magnetic material. The design of this structure can achieve the connection strength by plugging the annular protrusion 411 with the mounting ring groove 21, and can also strengthen the connection strength by magnetic attraction between the iron ring 22 and the annular protrusion 411.

[0026] The limiting ring 41 is provided with a thread groove for installing the magnetic ring 42, and a thread block is provided at the upper end of the magnetic ring 42, and the magnetic ring 42 is screwed into the thread groove. The design of the thread groove can adjust the overall length of the positioning member 4 by screwing, thereby controlling the extension length of the lower end of the guide steel pipe.

[0027] 2. During the high-temperature injection molding process, the magnetism of the magnetic ring 42 may be reduced. Existing high-temperature resistant magnetic materials can be used. In order to ensure the stability of the installation, the magnetic ring 42 can be replaced regularly.

[0028] The limiting ring 41 and the magnetic ring 42 are integrally formed and are made of magnetic material, and an iron layer is provided on the upper end of the mounting plate 2. This is another embodiment of the connection between the positioning member 4 and the mounting plate 2, and the positioning member 4 and the mounting plate 2 are magnetically attracted to each other, thereby enhancing the installation strength of the positioning member 4.

[0029] The device further comprises a positioning ring 6 which is made of a magnetic material and is used for being inserted into the lower end of the mounting hole 5 and being disposed in contact with the guide steel pipe.

[0030] The design of the positioning ring 6 can make the diameter and length of the lower end different by replacing the positioning rings 6 with different shapes and lengths. When it is necessary to increase the hardness of the sole in some occasions, cardboard is placed in contact with the bottom wall of the shoe last body 1. The cardboard has positioning holes. At this time, the positioning ring 6 cooperates with the positioning holes to reduce the situation of position deviation of the cardboard.

[0031] A positioning boss 61 is provided at the lower end of the positioning ring 6. The positioning ring 6 is screwed onto the positioning boss 61, and the positioning ring 6 and the positioning boss 61 enclose a "丄" - shaped structure.

[0032] By replacing the positioning boss 61, bottoms with different sizes can be formed, so that it can be applied to more usage occasions.

[0033] Connection holes 23 are provided on the mounting plate 2. One end of the shoe last body 1 is provided with an extension part 11, and a pin 12 corresponding to the connection hole 23 is provided on the extension part 11. The design of this structure can improve the connection strength between the mounting plate 2 and the shoe last body 1.

[0034] The connection hole 23 and the mounting hole 5 are respectively arranged on both sides of the mounting plate 2. Arranged on both sides, through the connection of the positioning member 4 and the pin 12, the two force - bearing points are located on both sides of the center of the upper end of the shoe last body 1, making the installation force balanced.

[0035] The extension part 11 and the mounting plate 2 can also be connected by bolts. At this time, the setting position of the extension part 11 can be on the left side of the shoe last body 1.( Figure 1 In the figure is the right side of the shoe last body 1)

[0036] The above is only the preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above - mentioned embodiments. All technical solutions within the idea of the present utility model belong to the protection scope of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements should also be regarded as within the protection scope of the present utility model.

Claims

1. A shoe last, characterized by: It includes a shoe last body (1), a mounting plate (2), a diversion iron pipe (3) and a positioning member (4). Mounting holes (5) for installing the diversion iron pipe (3) are penetratedly provided on both the shoe last body (1) and the mounting plate (2); The positioning member (4) includes a limiting ring (41) and a magnetic ring (42). The magnetic ring (42) is installed below the limiting ring (41), and the magnetic ring (42) is used for magnetically connecting with the diversion iron pipe (3); The diameter dimension of the limiting ring (41) is larger than the diameter dimension of the mounting hole (5), and the limiting ring (41) is used for abutting and limiting with the mounting plate (2).

2. A shoe last according to claim 1, characterized in that: An installation ring groove (21) is provided at the upper end of the mounting plate (2), and an annular convex block (411) for being inserted into the installation ring groove (21) is extendedly provided at the lower end of the limiting ring (41).

3. A shoe last according to claim 2, characterized in that: An iron ring (22) is provided in the installation ring groove (21), and the annular convex block (411) is made of a magnetic material.

4. A shoe last according to claim 1, characterized in that: A threaded groove for installing the magnetic ring (42) is provided on the limiting ring (41), a threaded block is provided at the upper end of the magnetic ring (42), and the magnetic ring (42) is screwed into the threaded groove.

5. The shoe last according to claim 1, characterized in that: The limiting ring (41) and the magnetic ring (42) are integrally structured and are both made of magnetic materials, and an iron sheet layer is provided at the upper end of the mounting plate (2).

6. A shoe last according to any one of claims 1 to 5, characterized in that: It further includes a positioning ring (6). The positioning ring (6) is made of a magnetic material and is used for being inserted into the lower end of the mounting hole (5) and abutting against the diversion steel pipe.

7. A shoe last according to claim 6, characterized in that: A positioning boss (61) is provided at the lower end of the positioning ring (6), the positioning ring (6) is screwed on the positioning boss (61), and the positioning ring (6) and the positioning boss (61) enclose an "丄" shaped structure.

8. The shoe last according to claim 1, characterized in that: A connecting hole (23) is provided on the mounting plate (2), an extension part (11) is provided at one end of the shoe last body (1), and a plug pin (12) corresponding to the connecting hole (23) is provided on the extension part (11).

9. A shoe last according to claim 8, characterized in that: The connecting hole (23) and the mounting hole (5) are respectively arranged on two sides of the mounting plate (2).

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