Quick-release front-assembly mold core structure

Abstract

The utility model discloses a quick-release pre-assembly mold core structure, which is characterized by comprising a mold core, a mold core and a positioning pin, the mold core is provided with a vertical mold core mounting hole, the mold core is arranged in the mold core mounting hole, the mold core comprises a forming part, a sealing part and a connecting part, the forming part is positioned in a forming cavity of the mold core, the sealing part is positioned in the forming cavity of the mold core, and the connecting part is positioned in the forming cavity of the mold core. The sealing part is tightly matched with the mold core mounting hole, the upper end face of the sealing part is flush with the bottom face of the mold core cavity, the connecting part is provided with a connecting hole in the radial direction, the mold core is provided with a transverse positioning pin hole, the positioning pin hole is right opposite to the connecting hole, a positioning pin is arranged in the positioning pin hole, and the positioning pin is matched with the connecting hole. And the front end of the positioning pin extends into the connecting hole. The utility model has the beneficial effects that the structure can realize accurate positioning of the mold core, can ensure that the direction of the top surface of the mold core is correct, can realize quick replacement by adopting a front mounting mode, is locked by using the transverse positioning pin, and avoids mold removal when the mold core is replaced.

Description

Technical Field

[0001] The utility model relates to the field of molds, in particular to a quick-disassembly front-mounted core structure. Background Art

[0002] The core is an important component of the mold and is also a consumable part, so its damage time is accidental. If the core is damaged during the production process of a large mold, it needs to be replaced. However, replacing the core currently takes a lot of time. The existing quick-change core is mainly connected to the core or the connecting rod on the core through threads. However, when the top surface of the core is an inclined surface or other special structure, it has extremely high requirements for direction, and the existing quick-change core structure cannot meet the requirements. Therefore, it is necessary to design a new quick-change core structure. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the utility model provides a quick-disassembly front-mounted core structure, which has a simple structure, can meet the positioning requirements of the core, and can also realize the rapid replacement of the core.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A quick-release front-mounted core structure, characterized in that it includes a core, a mold core, and a locating pin. The core has a vertical core mounting hole, the core is arranged in the core mounting hole, the core includes a molding part, a sealing part, and a connecting part, the molding part is located in the molding cavity of the core, the sealing part is tightly matched with the core mounting hole, and the upper end surface of the sealing part is flush with the bottom surface of the core cavity, the connecting part has a connecting hole in a radial direction, the core has a transverse locating pin hole, the locating pin hole is opposite to the connecting hole, a locating pin is arranged in the locating pin hole, and the front end of the locating pin extends into the connecting hole.

[0006] Furthermore, the upper end surface of the core is an inclined surface, the sealing portion is provided with a rotation-stopping surface, and the core mounting hole is adapted to the structure of the sealing portion.

[0007] Furthermore, the outer end of the positioning pin hole has an internal thread, the outer end of the positioning pin has an external thread matching the internal thread, and the end of the positioning pin has an internal hexagonal rotating hole.

[0008] The beneficial effects of the utility model include: the structure can realize accurate positioning of the core and can ensure the correct direction of the top surface of the core, the front-loading method can realize rapid replacement, and the horizontal positioning pin is used for locking, so as to avoid demoulding when changing the core. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the utility model;

[0010] Figure 2 It is a schematic diagram of the core structure of the utility model;

[0011] Figure 3 It is a schematic diagram of the core structure of the utility model. DETAILED DESCRIPTION

[0012] The present invention will be further described in detail below in conjunction with specific embodiments and accompanying drawings.

[0013] A kind of Figure 1-3 The quick-release front-mounted core structure shown includes a core 1, a core 2, and a positioning pin 3. The core 1 has a vertical core mounting hole 4, and the core 2 is arranged in the core mounting hole 4 in a vertically inserted manner. The core 2 includes a molding portion 21, a sealing portion 22, and a connecting portion 23, wherein the molding portion 21 is located in the molding cavity of the core 1. The sealing portion 22 is tightly matched with the core mounting hole 4, and the upper end surface of the sealing portion 22 is flush with the bottom surface of the cavity of the core 1, constituting a part of the cavity surface. The connecting portion 23 has a connecting hole 24 that passes through in the radial direction, and the core 1 has a transverse positioning pin hole 5. When the core 2 is inserted, the positioning pin hole 5 is opposite to the connecting hole 24. A positioning pin 3 is arranged in the positioning pin hole 5, and the front end of the positioning pin 3 passes through the connecting hole 24, thereby locking the core 2.

[0014] In this embodiment, the upper end surface of the core 2 is an inclined surface, so it is necessary to ensure the correct installation direction of the core. In this embodiment, the sealing part 22 has a rotation-stopping surface 25, and the core installation hole 4 is adapted to the structure of the sealing part 22.

[0015] Furthermore, the outer end of the locating pin hole 5 has an internal thread, and the outer end of the locating pin 3 has an external thread that matches the internal thread. The locating pin 3 is connected to the locating pin hole 5 through threads, and the end of the locating pin 3 has a hexagonal rotating hole, which is convenient for rotating the locating pin 3 with a wrench.

[0016] The technical solutions provided by the embodiments of the present invention are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A quick-release front-loading core structure, characterized in that: The mold core (1) comprises a mold core (2), and a positioning pin (3). The mold core (1) is provided with a vertical core mounting hole (4). The mold core (2) is arranged in the core mounting hole (4). The mold core (2) comprises a molding part (21), a sealing part (22), and a connecting part (23). The molding part (21) is located in the molding cavity of the mold core (1). The sealing part (22) is tightly matched with the core mounting hole (4), and the upper end surface of the sealing part (22) is flush with the bottom surface of the mold cavity of the mold core (1). The connecting part (23) has a radial connecting hole (24). The mold core (1) is provided with a transverse positioning pin hole (5). The positioning pin hole (5) is directly opposite to the connecting hole (24). The positioning pin (3) is arranged in the positioning pin hole (5), and the front end of the positioning pin (3) passes through the connecting hole (24).

2. A quick-release front-loading core structure according to claim 1, characterized in that: The upper end surface of the core (2) is an inclined surface, the sealing portion (22) is provided with a rotation-stopping surface (25), and the core mounting hole (4) is structurally compatible with the sealing portion (22).

3. The quick-release front-loading core structure according to claim 1, characterized in that: The outer end of the positioning pin hole (5) has an internal thread, the outer end of the positioning pin (3) has an external thread matching the internal thread, and the end of the positioning pin (3) has an internal hexagonal rotating hole.

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