CN211542144U

CN211542144U - Die set

Info

Publication number: CN211542144U
Application number: CN201921625823.8U
Authority: CN
Inventors: S·法亚尼; E·奥尔森
Original assignee: Carochi
Current assignee: Crocs Inc
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-09-22
Anticipated expiration: 2029-09-27

Abstract

The utility model provides a mould, which comprises an upper mould, the upper die and the middle die are connected through a sliding rod, the upper die and the middle die can move in the vertical direction, the lower die is kept stationary in the injection molding process, at least one corner of the upper die is provided with a first positioning part, the lower die is provided with a second positioning part matched with the first positioning part, and/or the middle die is provided with a third positioning part matched with the first positioning part. The mold can realize the integral molding of the sole with high production efficiency.

Description

Die set

Technical Field

The utility model relates to a mould, in particular to a mould for manufacturing shoes, especially soles.

Background

It is known that the moulds for manufacturing soles of shoes in the prior art are generally simple and generally only one sole can be formed at a time, thus causing a problem of low production efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model provides a make mould of sole of shoes can realize the integrated into one piece of sole with high production efficiency with the help of this mould.

The mould of the utility model comprises an upper mould, a middle mould and a lower mould,

wherein, four first die cavities are formed on the bottom surface of the upper die, four second die cavities matched with the four first die cavities are formed on the top surface of the middle die, four third die cavities are formed on the bottom surface of the middle die, four fourth die cavities matched with the four third die cavities are formed on the top surface of the lower die, the four first die cavities and the four second die cavities are mutually matched for forming four or two double soles, the four third die cavities and the four fourth die cavities are mutually matched for forming four or two double soles,

wherein the upper die and the middle die are connected through a sliding rod and can move in the vertical direction, the lower die is kept still in the injection molding process,

at least one corner of the upper die has a first positioning member, the lower die has a second positioning member cooperating with the first positioning member, and/or the middle die has a third positioning member cooperating with the first positioning member.

In particular, the lower mold is formed with an injection fluid flow passage extending in a horizontal direction, and an injection fluid flow passage penetrating the middle mold substantially in a vertical direction is formed between the upper mold and the lower mold.

In particular, the upper and lower molds are formed with injection fluid flow passages extending in a horizontal direction, capable of extending to the mold cavities.

In particular, the side walls of the upper mold, the middle mold and the lower mold are formed with side wall positioning parts which can be inserted into one another in a form-fitting manner for positioning.

In particular, the sidewall positioning members are horizontally oriented sidewall projections or recesses.

In particular, the sidewall positioning member is a vertically oriented sidewall relief structure.

In particular, the first positioning part is a guide post and the second positioning part is a guide hole.

In particular, the first positioning member is a guide hole and the second positioning member is a guide post.

In particular, two corners of the upper die on the same diagonal have first positioning members.

In particular, four corners of the upper die have first positioning members.

With the help of the utility model discloses a mould can realize the integrated into one piece of sole with high production efficiency, four pairs of soles of one shot forming for example. This enables efficient production of the sole.

Drawings

Figures 1A-1B show perspective views from different angles of a mould according to a first embodiment of the invention;

fig. 2A-2B show perspective views from different angles of a mold according to a second embodiment of the invention.

Description of the reference numerals

1, an upper die; 11 a first cavity; 12 a slide bar; 13 a first positioning member; 14 a side wall positioning part of the upper die; 15 a recess of the upper die; 16 convex parts;

2, middle mould; 21 a second cavity; 22 a third mold cavity; 23 side wall positioning parts of the middle mold; 24 a third positioning member; 25 through holes;

3, lower die; 31 a fourth cavity; 32 a second positioning member; 33 a side wall positioning part of the lower die; 34 a recessed portion of the lower mold; 35 a convex portion;

4, injection molding a fluid flow channel;

100 moulds.

Detailed Description

The same reference numerals are used for the same elements or elements having the same function according to the present invention, respectively. Furthermore, for the sake of clarity, only the reference numerals necessary for the description of the respective figures are shown in the respective figures.

Fig. 1A-1B show perspective views from different angles of a mold according to a first embodiment of the invention. Wherein fig. 1A is looking into the mold from below and fig. 1B is looking into the mold from above. As seen in fig. 1A, the mold 100 includes an upper mold 1, a middle mold 2, and a lower mold 3, the bottom surface of the upper mold 1 is formed with four first mold cavities 11, the top surface of the middle mold 2 is formed with four second mold cavities 21 (fig. 1B) matching the first mold cavities 11, and the bottom surface of the middle mold 2 is formed with four third mold cavities 22, and the top surface of the lower mold 3 is formed with four fourth mold cavities 31 (fig. 1B) matching the third mold cavities 22. The four first cavities 11 and the four second cavities 21 cooperate with each other for forming four or two soles of shoes, and the four third cavities 22 and the four fourth cavities 31 cooperate with each other for forming four or two soles of shoes. The upper and

middle molds

1, 2 are connected by, for example, a slide rod 12 and are movable in the vertical direction, while the lower mold 3 remains stationary during the injection molding process. At least one corner of the upper die 1, in this embodiment all four corners, has a first positioning member 13, and the lower die 3 has a second positioning member 32 (fig. 1B) that fits the first positioning member 13 (in this embodiment a guide post with a circular cross-section, but other forms of positioning members are also contemplated, such as a guide post with a polygonal cross-section or a frustoconical positioning member), such as a guide hole that matches the shape of the first positioning member 13 (guide post). During the closing of the upper, middle and

lower dies

1, 2, 3 and in the fully closed state, the guide posts are inserted into the form-fitting guide holes and are finally accommodated completely in the guide holes to achieve a guiding action during the closing. If necessary, the second positioning member may be a guide post and the first positioning member may be a guide hole.

In addition to the positioning between the respective parts of the mold 100 by the first positioning member 13 and the second positioning member 32, side wall positioning

members

14, 23, 33 are formed on the side walls of the upper mold 1, the side walls of the middle mold 2, and the side walls of the lower mold 3, respectively, and the side wall positioning members 14 of the upper mold, the side wall positioning members 23 of the middle mold, and the side wall positioning members 33 of the lower mold can be fitted into each other in a form-fitting manner to be positioned. In particular, the side wall positioning member 23 of the middle mold is formed as a protrusion, and the side wall positioning members 14 of the upper mold and the side wall positioning members 33 of the lower mold are formed as grooves. The upper part of the side wall positioning part 23 of the middle mold is matched with the side wall positioning part 14 of the upper mold, and the lower part of the side wall positioning part 23 of the middle mold is matched with the side wall positioning part 33 of the lower mold. In a state where the mold 100 is closed, an upper portion of the side wall positioning part 23 of the middle mold is accommodated in the side wall positioning part 14 of the upper mold, and a lower portion of the side wall positioning part 23 of the middle mold is accommodated in the side wall positioning part 33 of the lower mold; the upper portion of the middle mold 2 excluding the sidewall positioning members 23 is located in the recess 15 of the upper mold 1, and the lower portion of the middle mold 2 excluding the sidewall positioning members 23 is located in the recess 34 of the lower mold 3.

As can also be seen in fig. 1A-1B, both the upper mold part 1 and the lower mold part 3 are formed with injection fluid flow channels 4 extending in a horizontal direction, a part of the injection fluid is injected into the cavity formed by the first mold cavity 1 and the second mold cavity 21 through the injection fluid flow channels 4 of the upper mold part 1, and another part of the injection fluid is injected into the cavity formed by the third mold cavity 22 and the fourth mold cavity 31 through the injection fluid flow channels 4 of the lower mold part 3.

The production process using the mould according to the utility model has the following steps:

-preparing an injection fluid, chosen as a suitable material, for example PVC material, according to the sole to be formed;

mounting the mold 100, closing and locking the upper 1, middle 2 and lower 3 molds of the mold 100;

injecting an injection fluid into a plurality of cavities of the mold 100;

cooling the mold 100 until the injection fluid in the mold 100 is shaped by condensation;

opening the mould 100 and removing the condensation-formed sole.

Fig. 2A-2B show perspective views from different angles of a mold according to a second embodiment of the invention. Wherein fig. 2A is looking from below towards the mould and fig. 2B is looking from above towards the mould. The second embodiment differs from the first embodiment shown in fig. 1A-1B mainly in that:

two corners of the upper mold 1 opposite to each other on the same diagonal line have first positioning members 13, the middle mold 2 has third positioning members 24, such as guide holes, at positions corresponding to the first positioning members 13, and the lower mold 3 has second positioning members 32 at positions corresponding to the first positioning members 13 and the third positioning members 24. In this embodiment, the horizontal extension of the middle mold 2 corresponds to the upper mold 1 and the lower mold 3, and therefore the first positioning member 13 formed as a guide post can be inserted into the third positioning member 24 and the second positioning member 32 (guide hole) that are matched in shape. The third positioning member 24 of the lower die 3 may be omitted.

Furthermore, since the horizontal extension of the middle mold 2 corresponds to the upper and

lower molds

1, 3, the method of arranging the side

wall positioning members

14, 23, 33 also differs from the embodiment shown in fig. 1A-1B. Vertical concave-convex structures (instead of horizontal protrusions and grooves) are respectively formed on the side walls of the upper die 1, the middle die 2 and the lower die 3 for assisting positioning.

The lower die 3 is provided with an injection fluid flow passage 4 extending along the horizontal direction; the middle mold 2 has a through hole 25 formed at the center thereof, an injection fluid flow passage 4 penetrating substantially vertically is formed in a side wall of the through hole, and the upper mold 1 and the lower mold 3 have injection fluid flow passages 4 penetrating substantially vertically corresponding to the injection fluid flow passages 4 penetrating substantially vertically and formed in side walls of the

projections

16, 35 matching the shape of the through hole. The injection fluid flow channel 4 of the lower mold 3 extending in the horizontal direction is in direct fluid communication with the cavity formed by the third mold cavity 22 and the fourth mold cavity 31, and the injection fluid flow channel running through the middle mold in the vertical direction is in direct or indirect fluid communication with the cavity formed by the first mold cavity 1 and the second mold cavity 21 for injection of injection fluid.

Thus, as in the embodiment shown in fig. 1A to 1B, in a state where the mold 100 is closed, the cavity formed by the first cavity 1 and the second cavity 21 and the cavity formed by the third cavity 22 and the fourth cavity 31 are respectively closed in the shape of a sole, and after the injection fluid is injected into each cavity through the injection fluid flow passage 4 and cooled, four double soles are formed in all the cavities at once.

The illustrated embodiments are merely examples of an apparatus according to the invention or of a method according to the invention which can be implemented, for example, and these examples are not intended to be limiting.

Claims

1. A die is characterized by comprising an upper die, a middle die and a lower die,

2. The mold of claim 1, wherein the lower mold is formed with an injection fluid flow passage extending in a horizontal direction, and the upper mold and the lower mold are formed with an injection fluid flow passage extending substantially vertically through the middle mold.

3. The mold of claim 1, wherein the upper mold part and the lower mold part are formed with injection fluid flow passages extending in a horizontal direction, capable of extending to a mold cavity.

4. The mold according to claim 1, wherein the side walls of the upper mold, the middle mold, and the lower mold are formed with side wall positioning members that can be fitted into each other in a form-fitting manner to be positioned.

5. The mold of claim 4, wherein the sidewall positioning feature is a horizontally oriented sidewall projection or recess.

6. The mold of claim 5, wherein the sidewall positioning feature is a vertically oriented sidewall relief structure.

7. The mold of claim 1, wherein the first locating member is a guide post and the second locating member is a guide hole.

8. The mold of claim 1, wherein the first positioning member is a guide hole and the second positioning member is a guide post.

9. The mold of claim 1, wherein two corners of the upper mold on the same diagonal have first positioning members.

10. The mold of claim 1, wherein four corners of the upper mold have first locating features.