CN218803713U

CN218803713U - Multi-cavity multi-layer die structure with large frame type O-shaped ring die

Info

Publication number: CN218803713U
Application number: CN202223345099.8U
Authority: CN
Inventors: 丁金新
Original assignee: Qidong Huida Shock Absorption Technology Co ltd
Current assignee: Qidong Huida Shock Absorption Technology Co ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-04-07
Anticipated expiration: 2032-12-13

Abstract

The utility model discloses a multi-layer die structure with one die and multiple cavities for a large-frame O-shaped ring, which comprises a multi-layer die plate, a plurality of die cavities and one or more injection holes, wherein the section of each injection hole is trapezoidal, and the diameter of the bottom end of each injection hole is larger than that of the top end; the top end of the lower template is provided with a material storage cavity at the bottom end of the injection hole, the material storage cavity is in a semicircular concave hole shape, and the diameter of the material storage cavity is equal to that of the bottom end of the injection hole. The injection type charging method is adopted by the mold structure through the injection holes, the pressure in each layer of mold cavity is kept consistent due to the trapezoidal injection holes, the mold materials can be fully injected into each layer of mold cavity, and the shrinkage rate of each layer of mold cavity product can be guaranteed to be consistent due to the arrangement of the material storage cavity. Therefore, the processing efficiency of the large-frame O-shaped ring is improved, the energy consumption and the processing cost are reduced, and the vulcanization production efficiency is improved; the generation of waste edges is reduced; the injected glue in the multiple die cavities is consistent, and the internal pressure is stable; the uniformity and the height of the product are consistent.

Description

Multi-cavity multi-layer die structure with large frame type O-shaped ring die

Technical Field

The utility model relates to the technical field of mold, especially, relate to a multicavity multilayer mould structure of big frame type O type circle a mould.

Background

The O-ring is a rubber seal ring with a circular cross section, and is called an O-ring because the cross section is O-shaped. Beginning in the middle of the 19 th century, it was used as a sealing element for steam engine cylinders. Modern O-rings have wider applications.

In the actual production and processing process of the O-shaped ring, a one-die one-hole production mode is generally adopted for large O-shaped rings (the diameter is 200-600 mm), and the actual working efficiency is low. The processing efficiency of the large frame type O-shaped ring can be improved by adopting a one-die multi-hole mode, and because the size of the large frame type O-shaped ring is larger, a vulcanizing machine takes 600 × 600MM as an example, and can only be used for manufacturing O-shaped rings with 4 holes and phi 200 holes generally.

If a laminating method is adopted, because a manual feeding method is adopted, the time is long, the phenomenon of early vulcanization is easy to generate, the operation difficulty is high, an operator is easy to be in disorder of hands and feet, and the qualified rate of the O-shaped ring finished product is low.

The applicant innovates a one-mold multi-cavity mold structure of the large-frame O-shaped ring in practice, improves the processing efficiency of the large-frame O-shaped ring, and simultaneously ensures the qualification rate.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a multicavity multilayer mould structure of big frame type O type circle a mould has solved the big problem that with the product percent of pass low of the mould multicavity mould operation degree of difficulty.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a multi-cavity multi-layer die structure of a large-frame O-shaped ring comprises an upper die plate, a lower die plate and a single or a plurality of injection holes, wherein the upper die plate and the lower die plate are provided with a plurality of middle die plates, a single or a plurality of die cavities are arranged between every two adjacent die plates, each die cavity is communicated with the adjacent injection hole through a runner, the injection holes penetrate through the upper die plate and all the middle die plates, the cross sections of the injection holes are trapezoidal, and the diameter of the bottom ends of the injection holes is larger than that of the top ends of the injection holes.

As a further aspect of the present invention: and a material storage cavity is arranged at the bottom of the injection hole at the top end of the lower template and is in a semicircular concave hole shape.

As a further aspect of the present invention: the diameter of the material storage cavity is equal to that of the bottom end of the injection hole.

As a further aspect of the present invention: the mould structure comprises an upper mould plate, a lower mould plate and a middle mould plate, wherein four mould cavities are arranged on each layer, and the injection holes are formed in the middles of the four mould cavities.

As a further aspect of the present invention: the injection device is provided with two parallel injection holes, and the top end of the upper template is provided with a diversion trench for communicating the two injection holes.

Compared with the prior art, the beneficial effects of the utility model are that:

the multi-cavity multi-layer mold structure comprises a multi-layer mold plate, a plurality of mold cavities and one or a plurality of injection holes, wherein each mold cavity is communicated with the injection hole through a runner, the injection hole penetrates through the upper mold plate and all the middle mold plates, the section of the injection hole is trapezoidal, and the diameter of the bottom end of the injection hole is larger than that of the top end of the injection hole; the top end of the lower template is provided with a material storage cavity at the bottom end of the injection hole, the material storage cavity is in a semicircular concave hole shape, and the diameter of the material storage cavity is equal to that of the bottom end of the injection hole. The injection type charging method is adopted by the mold structure through the injection holes, the pressure in each layer of mold cavity is kept consistent due to the trapezoidal injection holes, the mold materials can be fully injected into each layer of mold cavity, and the shrinkage rate of each layer of mold cavity product can be guaranteed to be consistent due to the arrangement of the material storage cavity. Therefore, the processing efficiency of the large-frame O-shaped ring is improved, the energy consumption and the processing cost are reduced, and the vulcanization production efficiency is improved; the generation of waste edges is reduced; the injected glue in the multiple die cavities is consistent, and the internal pressure is stable; the uniformity and the height of the product are consistent.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic structural view of the multi-cavity multi-layer mold structure with a large frame O-ring.

Fig. 2 is the utility model discloses a big frame type O type circle multicavity multilayer mold structure's of a mould AA department section view.

Fig. 3 is a BB cross-sectional view of the multi-cavity multi-layer mold structure with a large frame O-ring.

Notations for reference numerals:

1. mounting a template; 2. a lower template; 3. a middle template; 4. a mold cavity; 5. an injection hole; 6. a flow channel; 7. a storage cavity; 8. a diversion trench;

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. The following description refers to the accompanying drawings in which the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

It should be noted that all directional indicators (such as up, down, left, right, front, and back) in the embodiments are only used to explain the relative position relationship between the components in a specific posture (as shown in the drawings), the motion situation, and the like, and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the embodiments are only used for description purposes, do not particularly refer to an order or sequential meaning, and do not limit the present invention, but merely distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

For further understanding of the contents, features and effects of the present invention, the following embodiments are exemplified in conjunction with the accompanying drawings as follows:

the actual working efficiency is low when a one-die one-hole production mode is generally adopted for large O-shaped rings (the diameter is 200-600 mm). The processing efficiency of the large-frame O-shaped ring can be improved by adopting a one-die multi-hole mode, and because the large-frame O-shaped ring has larger size, a vulcanizing machine takes 600X 600MM as an example, the large-frame O-shaped ring can only be used for manufacturing O-shaped rings with 4 holes phi 200 generally, and the production efficiency is not ideal. The processing efficiency can be further improved by adopting a laminating method, and the manual feeding method is long in time, easy to generate early vulcanization phenomenon, high in operation difficulty, easy for operators to be in disorder of hands and feet, and low in qualified rate of large O-shaped ring finished products.

The applicant innovates a multi-cavity multi-layer mold structure in practice, solves the existing problems, and improves the processing efficiency of large O-shaped rings (with the diameter of 200-600 mm), as shown in figures 1-3:

the multi-cavity multi-layer die structure comprises an upper die plate 1 and a lower die plate 2, wherein the upper die plate 1 and the lower die plate 2 are provided with a plurality of middle die plates 3, a single or a plurality of die cavities 4 are formed in the middle of two adjacent die plates, and the single or the plurality of die cavities 4 can be arranged according to the diameter of an O-shaped ring and the size of a vulcanizing machine. And a finished O-shaped ring can be produced by injecting a mold material into the mold cavity 4.

The glue injection device also comprises a single or a plurality of injection holes 5, and the plurality of injection holes 5 can improve the glue injection efficiency, so that the processing efficiency is improved.

Each die cavity 4 is communicated with the nearest adjacent injection hole 5 through a runner 6, the injection holes 5 penetrate through the upper die plate 1 and all the middle die plates 3, the cross section of each injection hole 5 is trapezoidal, and the diameter of the bottom end of each injection hole 5 is larger than that of the top end of each injection hole 5. Original injection hole 5 is the cylinder of upper and lower unanimity, can not guarantee that every layer of die cavity 4 can be filled up simultaneously, has seriously influenced O type circle quality, and trapezoidal injection hole 5's setting has guaranteed that every layer of die cavity 4 internal pressure keeps unanimous to every layer of die cavity 4 can be filled up the mould material simultaneously. It should be noted that the specific diameter and width of the injection hole 5 can be adaptively set according to specific situations.

In addition, a material storage cavity 7 is arranged at the bottom end of the injection hole 5 at the top end of the lower template 2, the material storage cavity 7 is in a semicircular concave hole shape, and the diameter of the material storage cavity 7 is equal to that of the bottom end of the injection hole 5. The arrangement of the material storage cavity 7 can ensure that the shrinkage rate of 4 products in each layer of die cavity is consistent, and the uniformity and the height of each layer of products are effectively ensured to be consistent.

Specifically, as shown in fig. 1, the mold structure includes an upper mold plate 1, a lower mold plate 2 and a middle mold plate 3, each layer is provided with four mold cavities 4, injection holes 5 are arranged in the middle of the four mold cavities 4, and each mold cavity 4 is communicated with the nearest injection hole 5 through a runner 6. Two parallel injection holes 5 are arranged, and a diversion trench 8 is arranged at the top end of the upper template 1 to communicate the two injection holes 5.

This novel mould structure has more outstanding advantage in practical application:

the injection type charging method is adopted by the mold structure through the injection holes 5, the pressure in each layer of the mold cavity 4 is kept consistent due to the trapezoidal injection holes 5, the mold materials can be fully injected into each layer of the mold cavity 4, and the shrinkage rate of products in each layer of the mold cavity 4 can be guaranteed to be consistent due to the material storage cavity 7.

Therefore, the processing efficiency of the large-frame O-shaped ring is improved through the multi-cavity multi-layer structure, the energy consumption and the processing cost are reduced, and the vulcanization production efficiency is improved; the generation of waste edges is reduced; the injection glue of the multi-cavity 4 is consistent, and the internal pressure is stable; the uniformity and the height of the product are consistent.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The scope of the application is limited only by the appended claims.

Claims

1. The utility model provides a multicavity multilayer mold structure of big frame type O type circle a mould, includes cope match-plate pattern (1) and lower bolster (2), cope match-plate pattern (1) and lower bolster (2) are equipped with a plurality of well templates (3), contain single or a plurality of die cavity (4) in the middle of two adjacent templates, its characterized in that: the injection mould further comprises one or more injection holes (5), each mould cavity (4) is communicated with the adjacent injection hole (5) through a runner (6), the injection holes (5) penetrate through the upper mould plate (1) and all the middle mould plates (3), the cross section of each injection hole (5) is trapezoidal, and the diameter of the bottom end of each injection hole (5) is larger than that of the top end of each injection hole.

2. The large frame-shaped O-ring one-mold multi-cavity multilayer mold structure according to claim 1, wherein: the top end of the lower template (2) is provided with a material storage cavity (7) at the bottom end of the injection hole (5), and the material storage cavity (7) is in a semicircular concave hole shape.

3. The large-frame O-ring one-mold multi-cavity multilayer mold structure according to claim 2, wherein: the diameter of the material storage cavity (7) is equal to the diameter of the bottom end of the injection hole (5).

4. The large frame-shaped O-ring one-mold multi-cavity multilayer mold structure according to claim 3, wherein: the die structure comprises an upper die plate (1), a lower die plate (2) and a middle die plate (3), wherein four die cavities (4) are arranged on each layer, and the injection holes (5) are formed in the middles of the four die cavities (4).

5. The large frame-shaped O-ring one-mold multi-cavity multilayer mold structure according to claim 4, wherein: the injection device is provided with two parallel injection holes (5), and the top end of the upper template (1) is provided with a diversion trench (8) for communicating the two injection holes (5).