Main runner direct connection type submersible opening pouring structure

Abstract

The utility model discloses a main runner direct connection type diving gate pouring structure which is characterized by comprising a front mold and a rear mold, an outer forming insert and an inner forming insert are arranged on the rear mold, an outer insert hole is formed in the outer forming insert, the inner forming insert is located in the outer insert hole, an insert groove is formed in the front mold, and the inner forming insert is located in the insert groove. The outer forming insert is located in the insert groove, a first forming cavity is formed between the outer forming insert and the insert groove, a first main runner is arranged in the front mold, a second main runner and a branch runner which is obliquely arranged and communicated with the second main runner are arranged in the inner forming insert, and the first main runner is communicated with the second main runner. A second forming cavity communicated with the first forming cavity is formed between the outer forming insert and the inner forming insert, and the sub-runner is communicated with the second forming cavity.

Description

Technical Field

[0001] The utility model relates to an injection mold, in particular to a direct-connected main runner submarine gate pouring structure. Background Art

[0002] In injection molds, submarine gate gating is a commonly used gating method in injection molds. However, for the runner design of ordinary submarine gate gating, there must be a distance (runner one) greater than twice the diameter of the main runner to ensure the deformation space during ejection. Otherwise, the submarine gate will break in the mold. Therefore, its runner design is as Figure 7 shown in the structure: including a main runner A, a runner one B perpendicular and communicating with the main runner, and a runner two C communicating with the runner one B and inclined, and the runner two C communicates with the injection cavity.

[0003] However, due to the existence of the runner one B, when injecting some products with narrow inner holes by using the submarine gate gating method, since the inner hole diameter is small, it is impossible to design a submarine gate inside. Therefore, the present application designs a direct-connected main runner submarine gate pouring structure to solve the above problems. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a direct-connected main runner submarine gate pouring structure.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] The direct-connected main runner submarine gate pouring structure is characterized in that: it includes a front mold and a rear mold. An outer forming insert and an inner forming insert are provided on the rear mold. An outer insert hole is provided in the outer forming insert. The inner forming insert is located in the outer insert hole. An insert groove is provided in the front mold. The outer forming insert is located in the insert groove and a forming cavity one is formed between the outer forming insert and the insert groove. A main runner one is provided in the front mold. A main runner two and a runner inclined and communicating with the main runner two are provided in the inner forming insert. The main runner one communicates with the main runner two. A forming cavity two communicating with the forming cavity one is provided between the outer forming insert and the inner forming insert. The runner communicates with the forming cavity two.

[0007] The aperture of the runner gradually becomes smaller from the end communicating with the main runner two to the end communicating with the main forming cavity two.

[0008] The angle between the runner and the main runner two is 45 degrees.

[0009] A locking groove is provided on the bottom surface of the outer forming insert. The outer insert hole communicates with the locking groove. A protruding locking plate is provided on the outer side wall of the inner forming insert. The locking plate is located in the locking groove and is locked and fixed with the rear mold through the outer forming insert.

[0010] It further includes a thimble. The inner forming insert has an inner insert hole penetrating through the upper and lower ends of the inner forming insert. The thimble is located in the inner insert hole, and the second main runner is composed of the inner insert hole and the thimble.

[0011] The beneficial effects of the present utility model are as follows: Through the technical solution of this application, not only can the workpiece required by the applicant be injection molded, but also this application can overcome technical prejudices, directly connect the sub-runner with the second main runner, thereby realizing glue injection from a narrow inner hole, ensuring the smooth outer surface of the workpiece, and eliminating the need to process and remove the residual glue points. Description of the Drawings

[0012] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0013] Figure 1 is the overall structural view of the present utility model;

[0014] Figure 2 is the structural view of the separation of the outer forming insert and the workpiece;

[0015] Figure 3 is the sectional structural view of the present utility model;

[0016] Figure 4 is the exploded structural view of the outer forming insert and the inner forming insert;

[0017] Figure 5 is the structural view of the front mold;

[0018] Figure 6 is the runner structural view of the sub-runner and the second main runner of this application;

[0019] Figure 7 is the runner structural view of the general submarine gate glue injection. Detailed Embodiments

[0020] The advantages, features and implementation methods of the present disclosure will be clarified by the following implementation schemes described with reference to the drawings. However, the present disclosure can be embodied in different forms and should not be construed as limited to the implementation schemes set forth herein. On the contrary, these implementation schemes are provided so that the present disclosure will be comprehensive and complete, and will fully convey the scope of the present disclosure to those skilled in the art. In addition, the present disclosure is only limited by the scope of the claims.

[0021] The shapes, sizes, ratios, angles, and numbers disclosed in the accompanying drawings used to describe the embodiments of the present disclosure are merely examples, and thus the present disclosure is not limited to the details shown. Throughout this specification, the same reference numerals refer to the same elements. In the following description, when a detailed description of a related known function or configuration is determined to unnecessarily obscure the focus of the present disclosure, that detailed description will be omitted. When using "comprising", "having", and "including" described in this specification, other components may be added unless "only" is used. Unless otherwise indicated, terms in the singular form may include the plural form.

[0022] When interpreting an element, although not explicitly described, the element is understood to include a margin of error.

[0023] When describing a positional relationship, for example, when the positional relationship is described as "on...", "above...", "below...", and "adjacent to...", unless "immediately" or "directly" is used, one or more parts may be arranged between the two other parts.

[0024] When describing a temporal relationship, for example, when the temporal order is described as "after...", "subsequently", "next", and "before...", unless "exactly" or "directly" is used, discontinuous cases may be included.

[0025] It should be understood that although terms such as "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from other elements. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element, without departing from the scope of the present disclosure.

[0026] As can be fully understood by those skilled in the art, the features of different embodiments of the present disclosure may be partially or fully coupled or combined with each other, and may cooperate with each other in various ways and be technically driven. The embodiments of the present disclosure may be executed independently of each other, or may be executed together in a mutually dependent relationship.

[0027] Refer to Figures 1 to 6, the present utility model discloses a sprue directly-connected submarine gate casting structure, including a front mold 1 and a rear mold 2. An outer forming insert 3 and an inner forming insert 4 are provided on the rear mold 2. An outer insert hole 5 is provided in the outer forming insert 3. The inner forming insert 4 is located in the outer insert hole 5. An insert groove 6 is provided in the front mold 1. The outer forming insert 3 is located in the insert groove 6, and a first forming cavity 7 is formed between the outer forming insert 3 and the insert groove 6. A first sprue 8 is provided in the front mold 1. The first sprue 8 is communicated with the gate. The glue enters the first sprue 8 from the gate. A second sprue 9 and a sub-gate 10 which is obliquely arranged and communicated with the second sprue 9 are provided in the inner forming insert 4. The first sprue 8 is communicated with the second sprue 9. A second forming cavity 11 which is communicated with the first forming cavity 7 is provided between the outer forming insert 3 and the inner forming insert 4. The sub-gate 10 is communicated with the second forming cavity 11. Through the above structure, the workpiece 12 injection-molded by the present application has an outer shell and a concave blind hole is formed on the top surface of the outer shell, and the gate is arranged in the blind hole. The first forming cavity 7 forms the outer shell, and the second forming cavity 11 forms the blind hole. The shape of the outer forming insert 3 corresponds to the outer shell of the workpiece 12, and the inner forming insert 4 is a round rod. Because the aperture of the blind hole is small, the flow path of the ordinary submarine gate feeding cannot be designed in the blind hole. The present application directly uses the sub-gate 10 to communicate with the second sprue 9, thereby reducing the width of the flow path, so as to realize feeding in a narrow inner hole and meet the user's requirements. Of course, the above structure also has certain requirements for the glue material, and generally materials such as ABS and PC are selected.

[0028] As shown in the figure, the aperture of the sub-gate 10 gradually becomes smaller from the end communicated with the second sprue 9 to the end communicated with the second main forming cavity 11. This not only facilitates feeding but also forms a small and easily breakable residual glue point. The angle between the sub-gate 10 and the second sprue 9 is 45 degrees. Such a structure also facilitates feeding.

[0029] As shown in the figure, a locking groove 15 is provided on the bottom surface of the outer forming insert 3. The outer insert hole 5 is communicated with the locking groove 15. A protruding locking plate 13 is provided on the outer side wall of the inner forming insert 4. The locking plate 13 is located in the locking groove 15 and is locked and fixed by the outer forming insert 3 and the rear mold 2. The outer forming insert 3 is fixed to the rear mold 2 by screws. The above structure facilitates the processing and assembly of the outer forming insert 3 and the inner forming insert 4.

[0030] As shown in the figure, it further includes an ejector pin 14. The inner forming insert 4 has an inner insert hole penetrating through the upper and lower ends of the inner forming insert 4. The ejector pin 14 is located in the inner insert hole. The second sprue 9 is composed of the inner insert hole and the ejector pin 14. The design of the above structure facilitates that when the mold is opened, the ejection force received by the product is relatively uniform and it is easy to eject.

[0031] The above has introduced in detail a sprue directly-connected submarine gate casting structure provided by an embodiment of the present utility model. Specific examples are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. The sprue direct-connected submarine gate gating structure is characterized in that: It includes a front mold and a rear mold. An outer forming insert and an inner forming insert are provided on the rear mold. An outer insert hole is provided in the outer forming insert, and the inner forming insert is located in the outer insert hole. An insert groove is provided in the front mold. The outer forming insert is located in the insert groove, and a first forming cavity is formed between the outer forming insert and the insert groove. A first main runner is provided in the front mold. A second main runner and a sub-runner which is inclined and communicates with the second main runner are provided in the inner forming insert. The first main runner communicates with the second main runner. A second forming cavity which communicates with the first forming cavity is provided between the outer forming insert and the inner forming insert. The sub-runner communicates with the second forming cavity.

2. The direct sprue-connected submarine gate casting structure according to claim 1, characterized in that: The aperture of the sub-runner gradually decreases from the end communicating with the second main runner to the end communicating with the second main forming cavity.

3. The direct sprue-connected submarine gate gating structure according to claim 1, wherein: The angle between the sub-runner and the second main runner is 45 degrees.

4. The direct sprue-connected submarine gate casting structure according to claim 1, characterized in that: A locking groove is provided on the bottom surface of the outer forming insert, and the outer insert hole penetrates through the locking groove. A protruding locking plate is provided on the outer side wall of the inner forming insert. The locking plate is located in the locking groove and is locked and fixed to the rear mold through the outer forming insert.

5. The direct sprue-connected submarine gate gating structure according to claim 1, wherein: It further includes an ejector pin. The inner forming insert has an inner insert hole penetrating through the upper and lower ends of the inner forming insert. The ejector pin is located in the inner insert hole, and the second main runner is composed of the inner insert hole and the ejector pin.

Images