Core pulling structure and die-casting die
By introducing a guide base and a core-pulling conversion assembly into the die-casting mold, the conversion from longitudinal to horizontal movement is achieved, solving the interference problem between the core-pulling structure and the safety door of the die-casting machine, and improving the compactness of the mold and the core-pulling capability.
Patent Information
- Application Number
- CN202520504469.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-20
AI Technical Summary
The core-pulling mechanism of existing die-casting molds is prone to structural interference with the safety door of the die-casting machine, especially when the core-pulling distance is long, which leads to an increase in the overall size of the mold and poor compactness.
By employing a guide base and a core-pulling conversion assembly, and through the design of guide grooves and sliding conversion parts, the movement direction of the drive component is changed from longitudinal to horizontal, avoiding the drive component being vertically installed on the outside of the die-casting mold, thus achieving a compact core-pulling structure.
It effectively avoids structural interference between the end of the drive component and the safety door of the die-casting machine, reduces the overall size of the mold, improves the structural compactness of the die-casting mold, and meets the requirements of a longer core-pulling distance.
Smart Images
Figure CN223916620U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of die casting mold technology, and in particular to a core-pulling structure and a die casting mold. Background Technology
[0002] When the structure of a die-casting part is relatively complex and demolding cannot be completed directly through the mold opening action, a core-pulling mechanism is usually needed to complete the lateral parting and demolding of the die-casting part.
[0003] Generally, core-pulling mechanisms typically use hydraulic cylinders as the power source for the core-pulling action. Specifically, the piston rod at the front end of the cylinder is aligned with the core-pulling direction, meaning the cylinder is vertically mounted on the outside of the die-casting mold, increasing the overall size of the mold. In this case, if the core-pulling direction of the die-casting part faces the safety door of the die-casting machine, the end of the cylinder can easily cause structural interference with the safety door, posing a production safety hazard. Especially when the core-pulling distance is long, a larger hydraulic cylinder is required, significantly increasing the overall size of the die-casting mold and exacerbating the aforementioned structural interference problem, while also resulting in poor overall structural compactness of the die-casting mold. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a core-pulling structure and die-casting mold that can realize the conversion from longitudinal movement to horizontal movement, so as to avoid the problem of structural interference between the end of the driving component and the safety door of the die-casting machine, and simultaneously improve the overall structural compactness of the die-casting mold.
[0005] The objective of this utility model is achieved through the following technical solution:
[0006] A core-pulling structure for pulling a die-cast part from the cavity of a die-casting mold, the core-pulling structure comprising:
[0007] The guide base has a first guide groove and a second guide groove that are connected to each other.
[0008] A driving component is arranged parallel to the outside of the die-casting mold, and the guide base is located in the power output direction of the driving component;
[0009] A core-pulling conversion assembly includes a first sliding conversion member and a second sliding conversion member; the power output end of the driving member is connected to the first sliding conversion member, the first sliding conversion member is slidably disposed in the first guide groove, the second sliding conversion member is slidably disposed in the second guide groove, one end of the first sliding conversion member has a first helical tooth sliding portion, one end of the second sliding conversion member has a second helical tooth sliding portion, the first helical tooth sliding portion and the second helical tooth sliding portion are slidably engaged, and the driving member drives the first sliding conversion member to slide in the first guide groove, so as to drive the first helical tooth sliding portion and the second helical tooth sliding portion to slidably engage;
[0010] The sliding direction of the first sliding conversion member is perpendicular to the sliding direction of the second sliding conversion member, and the end of the second sliding conversion member away from the second helical tooth sliding part is used to connect the core-pulling member.
[0011] In one embodiment, the core-pulling structure further includes a connector disposed between the driving member and the first sliding conversion member, the connector being used to fix the driving member and the first sliding conversion member together.
[0012] In one embodiment, both the first guide groove and the second guide groove penetrate the guide base.
[0013] In one embodiment, the guide base is further provided with a step, which is connected to the first guide groove;
[0014] The core-pulling structure also includes a pressure plate, which is located at the stepped position and abuts against the other end of the first sliding conversion member.
[0015] In one embodiment, the pressure plate is detachably connected to the guide base.
[0016] In one embodiment, both the first sliding transition member and the second sliding transition member are integrally formed structures.
[0017] In one embodiment, the guide base has a T-shaped structure.
[0018] A die-casting mold, comprising the core-pulling structure described in any of the above embodiments.
[0019] Compared with the prior art, the present invention has at least the following advantages:
[0020] The first sliding conversion component is slidably disposed in the first guide groove, and the second sliding conversion component is slidably disposed in the second guide groove. Simultaneously, the sliding direction of the first sliding conversion component is perpendicular to the sliding direction of the second sliding conversion component. Thus, a driving component parallel to the outside of the die-casting mold drives the first sliding conversion component to slide, causing the first helical tooth sliding part and the second helical tooth sliding part to engage, thereby driving the second sliding conversion component to slide in the second guide groove. This invention's core-pulling structure enables the conversion from longitudinal to horizontal movement, eliminating the need for the driving component to be vertically installed on the outside of the die-casting mold. This significantly reduces the overall size of the die-casting mold and effectively avoids structural interference between the end of the driving component and the safety door of the die-casting machine. Simultaneously, it allows the core-pulling structure to meet the core-pulling requirements of die-cast parts with long core-pulling distances, while also improving the overall structural compactness of the die-casting mold. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the core-pulling structure in one embodiment;
[0023] Figure 2 for Figure 1 Exploded view of the core-pulling structure shown;
[0024] Figure 3 for Figure 1 Exploded view of a portion of the core-pulling structure shown;
[0025] Figure 4 This is a schematic diagram of the core-pulling structure and the die-casting mold.
[0026] Figure 5 This is a schematic diagram of the core-pulling structure and the die-casting mold.
[0027] Reference numerals: Core-pulling structure 10; Die-casting mold 100; Guide base 200; First guide groove 201; Second guide groove 202; Step position 203; Driving component 300; Core-pulling conversion assembly 400; First sliding conversion component 410; First helical tooth sliding part 4110; Second sliding conversion component 420; Second helical tooth sliding part 4120; Connector 500; Pressure plate 600. Detailed Implementation
[0028] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.
[0029] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0031] This disclosure provides a core-pulling structure for pulling cores from a die-casting part within the cavity of a die-casting mold. The core-pulling structure includes a guide base, a driving component, and a core-pulling conversion assembly. The guide base has a first guide groove and a second guide groove that are connected to each other. The driving component is parallel to the outside of the die-casting mold, and the guide base is located in the power output direction of the driving component. The core-pulling conversion assembly includes a first sliding conversion component and a second sliding conversion component. The power output end of the driving component is connected to the first sliding conversion component. The first sliding conversion component is slidably disposed in the first guide groove, and the second sliding conversion component is slidably disposed in the second guide groove. One end of the first sliding conversion component has a first helical tooth sliding portion, and one end of the second sliding conversion component has a second helical tooth sliding portion. The driving component drives the first sliding conversion component to slide, thereby causing the first helical tooth sliding portion and the second helical tooth sliding portion to engage in sliding contact. The sliding direction of the first sliding conversion component is perpendicular to the sliding direction of the second sliding conversion component, and the end of the second sliding conversion component adjacent to the cavity of the die-casting mold is used to connect to the core-pulling component.
[0032] See Figures 1 to 5 To better understand the core-pulling structure 10 of this application, the following further explanation of the core-pulling structure 10 is provided:
[0033] A core-pulling structure 10 according to one embodiment is used to pull the core of a die-cast part inside the cavity of a die-casting mold 100. The core-pulling structure 10 includes a guide base 200, a driving member 300, and a core-pulling conversion assembly 400. The guide base 200 has a first guide groove 201 and a second guide groove 202 that are connected to each other; the driving member 300 is arranged parallel to the outside of the die-casting mold 100, and the guide base 200 is located in the power output direction of the driving member 300; the core-pulling conversion assembly 400 includes a first sliding conversion member 410 and a second sliding conversion member 420; the power output end of the driving member 300 is connected to the first sliding conversion member 410, the first sliding conversion member 410 is slidably disposed in the first guide groove 201, and the second sliding conversion member 420 is slidably disposed in the second guide groove 202. One end of the first sliding conversion member 410 has a... The first helical tooth sliding portion 4110 and the second helical tooth sliding portion 4120 are formed at one end of the second sliding conversion member 420. The first helical tooth sliding portion 4110 and the second helical tooth sliding portion 4120 are slidably engaged. The driving member 300 drives the first sliding conversion member 410 to slide in the first guide groove 201, so as to drive the first helical tooth sliding portion 4110 and the second helical tooth sliding portion 4120 to slidably engage. The sliding direction of the first sliding conversion member 410 is perpendicular to the sliding direction of the second sliding conversion member 420. The end of the second sliding conversion member 420 away from the second helical tooth sliding portion 4120 is used to connect the core pulling member.
[0034] In this embodiment, the first sliding conversion member 410 is slidably disposed in the first guide groove 201, and the second sliding conversion member 420 is slidably disposed in the second guide groove 202. At the same time, the sliding direction of the first sliding conversion member 410 is perpendicular to the sliding direction of the second sliding conversion member 420. Thus, the first sliding conversion member 410 is driven to slide by the driving member 300 which is parallel to the outside of the die-casting mold 100, so as to drive the first helical tooth sliding part 4110 and the second helical tooth sliding part 4120 to slide and engage, thereby driving the second sliding conversion member 420 to slide in the second guide groove 202, and then driving the core-pulling member to pull the core. The core-pulling structure 10 of this utility model can realize the core-pulling conversion from longitudinal movement to horizontal movement, thus eliminating the need to vertically install the drive component 300 on the outside of the die-casting mold 100, significantly reducing the overall size of the die-casting mold 100, and effectively avoiding the problem of structural interference caused by the end of the drive component 300 to the safety door of the die-casting machine; at the same time, the core-pulling structure 10 can meet the core-pulling requirements of die-casting parts with long core-pulling distances, and simultaneously improve the overall structural compactness of the die-casting mold 100.
[0035] It should be noted that, in this embodiment, the drive component 300 may be a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.
[0036] like Figure 1 and Figure 2 As shown, in one embodiment, the core-pulling structure 10 further includes a connector 500, which is disposed between the driving member 300 and the first sliding conversion member 410. The connector 500 is used to fix the driving member 300 and the first sliding conversion member 410.
[0037] It is understood that in this embodiment, the driving component 300 is a hydraulic cylinder, and the piston rod of the hydraulic cylinder and the first sliding conversion component 410 are separate structures, which facilitates the separate processing of the first sliding conversion component 410. After processing, the piston rod of the hydraulic cylinder and the first sliding conversion component 410 are fixedly connected through the connector 500.
[0038] like Figure 1 and Figure 2 As shown, in one embodiment, both the first guide groove 201 and the second guide groove 202 penetrate the guide base 200. This allows the first sliding conversion member 410 and the second sliding conversion member 420 to have a longer sliding space, enabling the second sliding conversion member 420 to drive the core-pulling member to perform a longer core-pulling distance, thus meeting the core-pulling requirements of more die-cast parts.
[0039] It should be noted that the end of the core-pulling component that is away from the second sliding conversion component 420 extends into the cavity of the die-casting mold 100 to form the structure of the corresponding die-casting component, such as holes, grooves or other irregular surfaces.
[0040] like Figure 1 and Figure 2 As shown, in one embodiment, the guide base 200 further includes a step 203, which communicates with the first guide groove 201. The core-pulling structure 10 also includes a pressure plate 600, which is located at the step 203 and abuts against the other end of the first sliding conversion member 410. In one embodiment, the pressure plate 600 is detachably connected to the guide base 200. Thus, after the first sliding conversion member 410 is slidably installed into the first guide groove 201, the installation of the first sliding conversion member 410 is limited by the pressure plate 600 abutting against the other end of the first sliding conversion member 410. Specifically, in this embodiment, the pressure plate 600 is connected to the step 203 by screws, which effectively improves the convenience and reliability of the installation of the first sliding conversion member 410.
[0041] like Figure 2 and Figure 3As shown, in one embodiment, both the first sliding transition member 410 and the second sliding transition member 420 are integrally formed structures. This effectively ensures that the first sliding transition member 410 and the second sliding transition member 420 have good structural strength, making them less prone to breakage during sliding, thereby ensuring the sliding stability of the first sliding transition member 410 and the second sliding transition member 420.
[0042] like Figure 2 As shown, in one embodiment, the guide base 200 has a T-shaped structure. Specifically, in this embodiment, the T-shaped guide base 200 is connected to the outer side of the die-casting mold 100 by screws, improving the ease of assembly and disassembly.
[0043] Please refer to the following: Figures 1 to 5 This application also provides a die-casting mold, including the core-pulling structure described in any of the above embodiments.
[0044] In this embodiment, the die-casting mold adopts the aforementioned core-pulling structure. A driving component parallel to the outer side of the die-casting mold drives the first sliding conversion component to slide, causing the first helical tooth sliding part and the second helical tooth sliding part to engage, thereby driving the second sliding conversion component to slide in the second guide groove. When the die-casting mold opens, the core-pulling structure enables a conversion from longitudinal to horizontal movement, eliminating the need to vertically mount the driving component on the outer side of the die-casting mold. This significantly reduces the overall size of the die-casting mold and effectively avoids structural interference between the end of the driving component and the safety door of the die-casting machine. Simultaneously, the core-pulling structure can meet the core-pulling requirements of die-cast parts with long core-pulling distances, improving the overall structural compactness of the die-casting mold and allowing it to better adapt to compact die-casting machines.
[0045] Compared with the prior art, the present invention has at least the following advantages:
[0046] The first sliding conversion component is slidably disposed in the first guide groove, and the second sliding conversion component is slidably disposed in the second guide groove. Simultaneously, the sliding direction of the first sliding conversion component is perpendicular to the sliding direction of the second sliding conversion component. Thus, a driving component parallel to the outside of the die-casting mold drives the first sliding conversion component to slide, causing the first helical tooth sliding part and the second helical tooth sliding part to engage, thereby driving the second sliding conversion component to slide in the second guide groove. This invention's core-pulling structure enables the conversion from longitudinal to horizontal movement, eliminating the need for the driving component to be vertically installed on the outside of the die-casting mold. This significantly reduces the overall size of the die-casting mold and effectively avoids structural interference between the end of the driving component and the safety door of the die-casting machine. Simultaneously, it allows the core-pulling structure to meet the core-pulling requirements of die-cast parts with long core-pulling distances, while also improving the overall structural compactness of the die-casting mold.
[0047] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A core-pulling structure for core-pulling a die casting in a cavity of a die casting mold, characterized by, The core-pulling structure comprises: A guide base, which is provided with a first guide sliding groove and a second guide sliding groove in communication; A driving member, which is arranged in parallel to the outside of the die-casting mold, and the guide base is located in the power output direction of the driving member; A core-pulling conversion assembly, which comprises a first sliding conversion member and a second sliding conversion member; the power output end of the driving member is connected with the first sliding conversion member, the first sliding conversion member is arranged in sliding mode in the first guide sliding groove, the second sliding conversion member is arranged in sliding mode in the second guide sliding groove, one end of the first sliding conversion member is formed with a first bevel tooth sliding part, one end of the second sliding conversion member is formed with a second bevel tooth sliding part, the first bevel tooth sliding part and the second bevel tooth sliding part are connected in sliding engagement, and the driving member drives the first sliding conversion member to slide in the first guide sliding groove to drive the first bevel tooth sliding part and the second bevel tooth sliding part to slide in engagement. The sliding direction of the first sliding conversion member is perpendicular to the sliding direction of the second sliding conversion member, and one end of the second sliding conversion member, which is away from the second bevel tooth sliding part, is used for connecting a core-pulling member.
2. The core structure of claim 1, wherein The core-pulling structure further comprises a connector, which is arranged between the driving member and the first sliding conversion member, and is used for fixedly connecting the driving member and the first sliding conversion member.
3. The core structure of claim 1, wherein The first guide sliding groove and the second guide sliding groove both penetrate through the guide base.
4. The core structure of claim 1, wherein The guide base is further provided with a step position, which is in communication with the first guide sliding groove; The core-pulling structure further comprises a pressing plate, which is arranged in the step position and abuts against the other end of the first sliding conversion member.
5. The core structure of claim 4, wherein The pressing plate and the guide base are detachably connected.
6. The core structure of claim 1, wherein The first sliding conversion member and the second sliding conversion member are both integrally formed.
7. The core structure of claim 1 wherein, The guide base is in T-shaped structure.
8. A die-casting mold characterized by comprising: The core-pulling structure comprises the core-pulling structure according to any one of claims 1-7.