Detachable die core and die-casting die

Abstract

The utility model relates to the technical field of forming dies, in particular to a detachable die core and a die-casting die, the detachable die core comprises a supporting plate, and the supporting plate is used for being detachably and fixedly connected with a die body; the mold core rods are arranged perpendicular to the supporting plate, the mold core rods are detachably and fixedly connected with the supporting plate, and the mold core rods are located on the same side of the supporting plate; according to the die-casting mold, hole forming can be achieved in the die-casting process through the mold core rod, the mold core rod and the mold body can be conveniently installed through the supporting plate while the mold core rod is fixed, in addition, when the mold core rod is damaged, only the damaged mold core rod needs to be detached from the supporting plate to be replaced, operation is easy, convenient and rapid, and the production efficiency is improved. And therefore, the influence of the fracture of the core rod on the die-casting production efficiency of products is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of molding dies, and in particular to a detachable mold core and a mold. Background Art

[0002] Die casting is a molding method that uses high pressure to press molten raw materials into a molding mold and then forms the molten raw materials after they condense. The molds used for die casting can generally be divided into plastic die casting molds and metal die casting molds according to the type of raw materials.

[0003] During die-casting, especially metal die-casting, some products have densely arranged openings with relatively small apertures. At this time, the core structure used as the hole forming in the die-casting mold is limited by the core material and has a very high risk of breakage during the die-casting process. At present, after the core breaks, the broken core structure is generally repaired by welding on the mold body and then secondary processing and grinding. However, the repair of the core structure in this way is inefficient, which affects the production efficiency of the product die-casting. Utility Model Content

[0004] In order to reduce the influence of core rod breakage on product die-casting production efficiency, the present application provides a detachable mold core and a die-casting mold.

[0005] The present application provides a detachable mold core and mold using the following technical solutions:

[0006] In a first aspect, the present application provides a detachable mold core, comprising

[0007] A support plate, the support plate being used for being detachably fixedly connected to the mold body;

[0008] A plurality of core rods are vertically arranged with respect to the support plate, and the core rods are detachably fixedly connected with the support plate, and the plurality of core rods are located on the same side of the support plate.

[0009] By adopting the above technical solution, a detachable mold core is designed, and the hole can be formed during the die-casting process through the core rod. The support plate is convenient for fixing the core rod and installing it with the mold body at the same time. Moreover, when the core rod is damaged, the damaged core rod can be removed from the support plate and replaced. The operation is simple, convenient and fast, thereby reducing the influence of the core rod breakage on the die-casting production efficiency of the product.

[0010] In a specific embodiment, the core rod comprises

[0011] A forming section, the forming section passes through the support plate and is arranged so as to be slidably connected to the support plate;

[0012] A positioning section is connected to the forming section, and a positioning step is formed between the positioning section and the forming section.

[0013] By adopting the above technical scheme, the designed core rod facilitates the forming of the holes on the product during the die-casting process through the forming section, and facilitates the formation of a positioning step in cooperation with the forming section through the positioning section. Furthermore, when it is installed on the support plate, the three-dimensional coordinates of the forming section are guaranteed to be accurate, thereby improving the quality of the die-cast product.

[0014] In a specific possible implementation scheme, the diameter of the positioning section is smaller than the diameter of the forming section, and a countersunk bolt is threadedly connected to the support plate, the countersunk bolt extends into the support plate, and the countersunk bolt is threadedly connected to the positioning section.

[0015] By adopting the above technical solution, the positioning section can be fixed by countersunk bolts without affecting the installation of the support plate.

[0016] In a specific embodiment, the support plate comprises

[0017] The mounting layer, the diameter of the positioning section is larger than the diameter of the forming section, the mounting layer is provided with a receiving cavity for receiving the positioning section, and the positioning section is slidably connected to the mounting layer;

[0018] A fixing layer is connected to the mounting layer by bolts, and the fixing layer abuts against a side of the positioning section away from the forming section.

[0019] By adopting the above technical solution, force is applied to the positioning segment, and the positioning segment drives the forming segment to move until the forming segment passes through the installation layer, and the positioning steps of the positioning segment and the forming segment abut against the top wall of the accommodating cavity in the installation layer, and then the fixing layer and the installation layer are bolted together by bolts to fix the position of the positioning segment. On the premise of realizing a detachable connection of the core rod, the diameter ratio of the forming segment and the positioning segment can be guaranteed to improve the strength of the core rod positioning structure.

[0020] In a specific possible implementation scheme, a venting groove is provided on the positioning section, and when the positioning section is inserted into the accommodating cavity, the venting groove is used to discharge gas in a cavity formed by the accommodating cavity and a side of the positioning section close to the molding section.

[0021] By adopting the above technical solution, when the positioning section is inserted into the accommodating cavity, the gas in the cavity on the side of the positioning section close to the forming section can be quickly discharged, which facilitates the rapid insertion of the positioning section.

[0022] In a specific possible implementation manner, the opening direction of the exhaust groove is consistent with the axial direction of the forming section, and the exhaust groove is arranged to penetrate the positioning section.

[0023] By adopting the above technical solution, the gas in the chamber of the accommodating cavity on the side of the positioning section close to the forming section can be quickly discharged without affecting the positioning of the positioning section.

[0024] In a specific possible implementation mode, the exhaust groove is opened on the surface of the positioning segment and the circumferential surface of the positioning segment and is connected to each other.

[0025] By adopting the above technical solution, the gas in the chamber of the accommodating cavity on the side of the positioning section close to the forming section can be quickly discharged without affecting the positioning of the positioning section.

[0026] In a second aspect, the present application provides a die-casting mold, comprising a mold body and a detachable mold core, wherein the detachable mold core is mounted on the mold body.

[0027] By adopting the above technical solution, the time required to replace the core rod when it is damaged can be shortened, and the die-casting molding efficiency of the die-casting mold can be improved.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. The designed detachable mold core can realize hole forming in the die-casting process through the core rod. The support plate is convenient for fixing the core rod and installing it with the mold body at the same time. In addition, when the core rod is damaged, the damaged core rod can be removed from the support plate and replaced. The operation is simple, convenient and fast, thereby reducing the impact of the core rod breakage on the die-casting production efficiency of the product.

[0030] 2. The designed detachable mold core facilitates the forming of the holes on the product during the die-casting process through the forming section, and facilitates the formation of a positioning step in cooperation with the forming section through the positioning section. When installed on the support plate, the three-dimensional coordinates of the forming section are guaranteed to be accurate, so as to improve the quality of the die-casting product.

[0031] 3. The designed detachable mold core can avoid interference between two adjacent positioning sections when the core rods are arranged densely by staggering the positioning sections axially, so as to increase the outer diameter of the positioning section and ensure the strength of the core rod positioning structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the detachable mold core of Example 1 of the present application.

[0033] Figure 2 It is a cross-sectional view of the detachable mold core of Example 2 of the present application.

[0034] Figure 3 It is a cross-sectional view of the detachable mold core of Example 3 of the present application.

[0035] Figure 4 It is a schematic diagram of the structure of the medium-sized core rod in Examples 4 and 5 of the present application.

[0036] Figure 5 It is a schematic diagram of the structure of the medium-sized core rod in Example 6 of the present application.

[0037] Explanation of the reference numerals: 1. Support plate; 11. Installation layer; 111. Accommodating cavity; 12. Fixing layer; 2. Core rod; 21. Forming section; 22. Positioning section; 3. Countersunk bolt; 4. Exhaust groove. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-5 This application is described in further detail.

[0039] The embodiments of the present application disclose a detachable mold core and a die-casting mold.

[0040] In a first aspect, an embodiment of the present application discloses a detachable mold core.

[0041] Example 1

[0042] Reference Figure 1 A detachable mold core includes a support plate 1 and a core rod 2, the support plate 1 is used to be detachably fixedly connected to the mold body. In the present application, the support plate 1 and the corresponding mounting plate in the mold body are detachably fixedly connected by bolts; there are multiple core rods 2, and the multiple core rods 2 are all located on the same side of the support plate 1, and the core rod 2 and the support plate 1 are vertically arranged, and the core rod 2 and the support plate 1 are detachably fixedly connected, so that the core rod 2 can be quickly replaced when the core rod 2 is damaged, thereby improving the production efficiency of product die-casting.

[0043] Reference Figure 1 and Figure 2 In order to ensure the accuracy of the position of the core rod 2 and improve the dimensional accuracy of the product after die-casting, the core rod 2 includes a molding section 21 and a positioning section 22. The molding section 21 is arranged through the support plate 1, and the molding section 21 is slidably connected to the support plate 1. The positioning section 22 is integrally connected to the molding section 21, and there is a difference between the outer diameter of the positioning section 22 and the outer diameter of the molding section 21, so that a positioning step is formed between the positioning section 22 and the molding section 21, and the positioning step is abutted against a shape-matched structure in the support plate 1 to ensure the accurate spatial position of the positioning section 22.

[0044] Example 2

[0045] Reference Figure 2Based on Example 1, this embodiment further discloses that the diameter of the positioning section 22 is smaller than the diameter of the forming section 21, and a plurality of countersunk bolts 3 are threadedly connected to the support plate 1. In this application, the number of countersunk bolts 3 is consistent with the number of positioning sections 22. The countersunk bolts 3 are sunk into the support plate 1, and the countersunk bolts 3 are threadedly connected to the positioning section 22.

[0046] The implementation principle of a detachable mold core in an embodiment of the present application is: insert the positioning section 22 into the blind hole opened on the support plate 1, and then fix the positioning section 22 by the countersunk bolt 3 until the positioning step abuts against the blind hole step, thereby achieving the position fixation of the molding section 21.

[0047] Example 3

[0048] Reference Figure 3 Based on Example 1, this embodiment further discloses that the diameter of the positioning section 22 is greater than the diameter of the forming section 21, and the support plate 1 includes a mounting layer 11 and a fixing layer 12, the mounting layer 11 is provided with a receiving cavity 111 for accommodating the positioning section 22, the positioning section 22 is slidably connected to the mounting layer 11, the forming section 21 is arranged through the mounting layer 11, the fixing layer 12 is bolted to the mounting layer 11, and the fixing layer 12 abuts against the side of the positioning section 22 away from the forming section 21.

[0049] Example 4

[0050] Reference Figure 4 In this embodiment, based on the third embodiment, in order to facilitate the positioning section 22 to be inserted smoothly and quickly into the accommodating cavity 111, an exhaust groove 4 is opened on the positioning section 22. When the positioning section 22 is inserted into the accommodating cavity 111, the exhaust groove 4 is used to exhaust the gas in the chamber formed by the accommodating cavity 111 and one side of the top wall of the positioning section 22.

[0051] Example 5

[0052] Reference Figure 4 Based on Example 5, this embodiment further discloses that the exhaust groove 4 is arranged in the same axial direction as the forming section 21 , and the exhaust groove 4 is arranged to penetrate the positioning section 22 .

[0053] Example 6

[0054] Reference Figure 5 Based on Example 5, this embodiment further discloses that the exhaust groove 4 is opened on the top wall surface of the positioning section 22 and the circumferential surface of the positioning section 22, and the exhaust grooves 4 on the top wall surface of the positioning section 22 and the circumferential surface of the positioning section 22 are connected.

[0055] The implementation principle of a detachable mold core in an embodiment of the present application is: force is applied to the positioning section 22, and the positioning section 22 drives the molding section 21 to move until the molding section 21 passes through the mounting layer 11, and the positioning steps of the positioning section 22 and the molding section 21 abut against the top wall of the accommodating cavity 111 in the mounting layer 11, and then the fixing layer 12 and the mounting layer 11 are bolted together by bolts to fix the position of the positioning section 22, thereby fixing the position of the molding section 21.

[0056] In a second aspect, an embodiment of the present application discloses a die-casting mold, comprising a mold body and the detachable mold core disclosed in the first aspect of the embodiment of the present application, wherein the detachable mold core is mounted on the mold body.

[0057] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A detachable mold core, characterized in that: include A support plate (1), the support plate (1) being used for being detachably fixedly connected to the mold body; A plurality of core rods (2) are provided, wherein the core rods (2) and the support plate (1) are arranged perpendicularly, and the core rods (2) and the support plate (1) are detachably fixedly connected, and the plurality of core rods (2) are located on the same side of the support plate (1).

2. The detachable mold core according to claim 1, characterized in that: The core rod (2) comprises A forming section (21), the forming section (21) passing through the support plate (1) and being arranged so as to be slidably connected to the support plate (1); A positioning section (22), wherein the positioning section (22) is connected to the forming section (21), and a positioning step is formed between the positioning section (22) and the forming section (21).

3. The detachable mold core according to claim 2, characterized in that: The diameter of the positioning section (22) is smaller than the diameter of the forming section (21), and a countersunk bolt (3) is threadedly connected to the support plate (1), the countersunk bolt (3) extends into the support plate (1), and the countersunk bolt (3) is threadedly connected to the positioning section (22).

4. The detachable mold core according to claim 2, characterized in that: The support plate (1) comprises The mounting layer (11) has a diameter of the positioning section (22) that is larger than a diameter of the forming section (21), and the mounting layer (11) is provided with a receiving cavity (111) for receiving the positioning section (22), and the positioning section (22) is slidably connected to the mounting layer (11); A fixing layer (12), the fixing layer (12) being connected to the mounting layer (11) by bolts, and the fixing layer (12) being in abutment with a side of the positioning section (22) away from the forming section (21).

5. The detachable mold core according to claim 4, characterized in that: The positioning section (22) is provided with an exhaust groove (4), and when the positioning section (22) is inserted into the accommodating cavity (111), the exhaust groove (4) is used to exhaust gas in a cavity formed by the accommodating cavity (111) and a side of the positioning section (22) close to the molding section (21).

6. The detachable mold core according to claim 5, characterized in that: The opening direction of the exhaust groove (4) is consistent with the axial direction of the forming section (21), and the exhaust groove (4) is arranged to penetrate the positioning section (22).

7. The detachable mold core according to claim 5, characterized in that: The exhaust groove (4) is opened on the surface of the positioning section (22) and the circumferential surface of the positioning section (22) and is connected to each other.

8. A die-casting mold, characterized in that: It comprises a mold body and a detachable mold core as described in any one of claims 1 to 7, wherein the detachable mold core is mounted on the mold body.

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