A die casting modular die, rapid die change system and method

Abstract

The application discloses a die-casting modular mold, a rapid mold changing system and method, and relates to the technical field of die-casting molds, comprising a mold general part and a special part core, wherein the mold general part comprises a mold bottom plate, one side of the mold bottom plate is connected with a core mounting block and a movable mold runner bottom plate, the movable mold runner bottom plate is provided with a guide groove for cooperating with a mold changing platform; the other side of the mold bottom plate is provided with a plurality of mold locking pins for positioning and locking when the die-casting machine is clamped; the special part core is connected with the core mounting block and the movable mold runner bottom plate; wherein the mold is formed into a frameless mold in a mold core fitting mode. The mold is divided into a general part and a special part, the mold is modularized, and the long-life components of the mold are shared; based on the modular design structure of the mold, the die-casting machine and the mold changing platform are coupled, and the die-casting mold is rapidly changed.

Description

Technical Field

[0001] This invention relates to the field of die-casting mold technology, and in particular to a modular die-casting mold, a quick mold-changing system and method. Background Technology

[0002] As products continue to grow larger, die-casting molds are constantly pushing the limits of existing metal materials in terms of size and weight. At the same time, the increased assembly difficulties of larger die-casting molds amplify downtime in die-casting production. Traditional die-casting molds require an external matching mold frame and an internal core component for product molding. The product core is a specialized part; product replacement renders the matching external mold frame unusable. While the external mold frame is less affected by impact loads and intense temperature fluctuations during die-casting, ensuring a long service life, the high degree of matching between the mold frame and the product core leads to significant wastage and lifespan limitations as the core is updated. Summary of the Invention

[0003] To address the shortcomings of existing technologies, the purpose of this invention is to provide a modular die-casting mold, a rapid mold-changing system, and a method. The mold is divided into general-purpose and special-purpose parts to achieve modularization and the sharing of long-life mold components. Based on the modular design structure of the mold, the die-casting machine and the mold-changing platform are coupled to achieve rapid replacement of the die-casting mold.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0005] In a first aspect, embodiments of the present invention provide a die-casting modular mold, comprising:

[0006] The mold general part includes a mold base plate, on one side of which a core mounting block and a moving mold runner base plate are connected. The moving mold runner base plate is provided with a guide groove for cooperating with the mold changing platform. On the other side of the mold base plate, a number of locking pins are installed to position and lock the mold when the die casting machine closes the mold.

[0007] The special part core is connected to the core mounting block and the moving mold flow channel base plate; the mold is formed by the core fitting method to form a frameless mold.

[0008] As a further implementation, the moving mold flow channel base plate uses a circular flow divider cone to position the core of the special part.

[0009] As a further implementation, fluid connection plates are provided on both sides of the mold base plate, and the fluid connection plates are adapted to the fluid connectors of the die casting machine.

[0010] As a further implementation, the core mounting block is disposed between the mold base plate and the special part core, and has a set mold ejector plate movement space.

[0011] As a further implementation, the flow-affected areas pre-identified by the dedicated core are designed as inserts.

[0012] As a further implementation, the relative position of the core mounting block and the mold base plate can be adjusted to install cores of different sizes.

[0013] Secondly, embodiments of the present invention also provide a die-casting quick mold-changing system, including the aforementioned mold and a mold-changing platform, the mold-changing platform being used to provide the moving power when the mold and the die-casting machine are closed.

[0014] Thirdly, embodiments of the present invention also provide a quick die-casting mold changing method. After the mold stops at a set position on the mold changing platform, the die-casting machine performs a mold closing action, wherein the mold is the mold described above; the locking pins on the mold base plate are inserted into the die-casting machine wall plate, and the mold is fastened to the die-casting machine wall plate by activating the die-casting machine wall plate cylinder; at the same time, the mold side fluid connection plate is connected to the die-casting machine side interface during the die-casting machine mold closing process;

[0015] When the die-casting machine is in the mold-closed state, release the hydraulic cylinder of the die-casting machine wall plate, and the mold moves with the mold bridge to detach from the die-casting machine wall plate, thus separating the die-casting machine from the mold.

[0016] As a further implementation, before installing the mold core, the relative dimensions of the core mounting block and the mold base plate are first adjusted, and then the special part core that conforms to the dimensions is fixed to the core mounting block and the mold base plate.

[0017] As a further implementation, the mold is powered by rollers on the mold changing platform, and the rollers rotate in guide grooves to move the mold horizontally.

[0018] The beneficial effects of this invention are as follows:

[0019] (1) The present invention divides the mold into a general part and a special part to form a frameless mold; by adjusting the relative position of the core mounting block and the mold base plate, it can be compatible with cores of different sizes; it realizes the modularization of the mold and the common use of long-life mold components, and reduces the processing input of general part materials.

[0020] (2) The mold coupling die casting machine and mold changing platform of the present invention, wherein the frameless mold is externally installed with a fluid connection plate and is provided with a mold locking pin, so that the die casting fluid pipeline can be automatically connected and separated under the mold closing action of the die casting machine, thereby improving the replacement efficiency.

[0021] (3) The bottom of the mold of the present invention is provided with a guide groove, which fits with the roller on the mold bridge to prevent it from tipping over during movement. The guide groove ensures the consistency of the direction of mold movement and improves the assembly accuracy. Attached Figure Description

[0022] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0023] Figure 1 This is a schematic diagram of the rapid mold change system structure according to one or more embodiments of the present invention;

[0024] Figure 2 This is a schematic diagram of the dedicated core structure according to one or more embodiments of the present invention;

[0025] Figure 3 This is a schematic diagram of the general mold part structure according to one or more embodiments of the present invention;

[0026] Figure 4 This is a schematic diagram of a mold base plate compatible with different cores according to one or more embodiments of the present invention;

[0027] Figure 5 This is a schematic diagram of a quick-connection between a fluid connection plate and a die-casting machine connector according to one or more embodiments of the present invention;

[0028] Figure 6 This is a schematic diagram of the installation of the special part core and the mold general part according to one or more embodiments of the present invention.

[0029] Among them, 1. Frameless mold, 2. Fluid connection plate, 3. Roller power mold bridge, 4. Mold changing platform, 5. Die casting machine wall plate, 6. Mold locking nail, 7. Special part core, 8. Mold base plate, 9. Core mounting block, 10. Moving mold flow channel base plate, 11. Die casting machine connector. Detailed Implementation

[0030] Example 1:

[0031] In a typical embodiment of the present invention, such as Figures 1-6 As shown, a modular die-casting mold is provided.

[0032] Existing die-casting molds suffer from long downtime due to production and mold replacement issues. Furthermore, due to the high degree of matching between the mold frame and the product core, the lifespan of the mold frame is often significantly wasted as the core is updated.

[0033] Based on this, this embodiment presents a modular die-casting mold, which adopts an integral quick-change frameless mold structure. By coupling the die-casting machine auxiliary automation equipment with the mold changing platform 4, the die-casting mold can be quickly replaced. By designing a modular mold structure and splitting the mold functional structure, the long-life parts of the mold can be shared, reducing the waste of mold material life.

[0034] The following is a detailed description of the die-casting modular mold, with reference to the accompanying drawings.

[0035] like Figure 2 , Figure 3 and Figure 6 As shown, the mold is divided into two parts: a general mold part and a special part core 7. The general mold part includes a mold base plate 8, a moving mold runner base plate 10, and a core mounting block 9. The moving mold runner base plate 10 and the core mounting block 9 are fixed on one side. The part below the flow divider cone is separated into the moving mold runner base plate 10, which serves as the positioning and load-bearing block area at the bottom of the mold. The moving mold runner base plate 10 uses a circular flow divider cone to meet the positioning requirements of the mold core part.

[0036] Meanwhile, a guide groove is provided at the bottom of the moving mold flow channel base plate 10. The guide groove is in dynamic cooperation with the external roller to make the mold move in the horizontal direction.

[0037] It should be noted that this embodiment utilizes external power to move the mold, enabling the die-casting machine and the mold to quickly connect and separate. The movement method can be positioning of the die-casting machine roller power mold bridge 3, positioning of the die-casting machine plate, adaptive fast floating connection positioning structure, etc., and can be selected according to actual needs.

[0038] The dedicated core 7 is the mold core, integrated with the barrel; the dedicated core 7 is fixed to the moving mold runner base plate 10 and the core mounting block 9 by bolts. The core mounting block 9 connects the mold base plate 8 and the dedicated core 7, and has space for setting the movement of the mold ejector plate; for example... Figure 4 As shown, different sizes of cores can be accommodated by adjusting the relative position of the core mounting block 9 and the mold base plate 8.

[0039] During the design phase, the special core 7 identifies the area affected by the high temperature and high pressure of aluminum alloy flow (flow-affected area). This area is designed and manufactured as a mold insert to facilitate subsequent maintenance. The remaining parts, together with the mold sealing surface, are prepared and processed as a whole. The mold is fitted with a mold core, eliminating the original mold frame structure and forming a frameless mold 1.

[0040] The back side of the dedicated core 7 integrates a mold ejector system (not shown in the figure). All ejector pins are mounted on the ejector pin clamp plate, and are installed via a prefabricated ejector pin base plate countersink, and secured by cold-connected screws on the ejector pin top side plate. A quick-connect reciprocating pin is installed on the back side of the ejector pin top side plate for quick connection with the die-casting machine's ejector cylinder.

[0041] like Figure 1 As shown, multiple locking pins 6 are connected to the other side of the mold base plate 8 (the side opposite to the moving mold flow channel base plate 10 and the core mounting block 9). The multiple locking pins 6 are spaced apart and located on the same horizontal line. The locking pins 6 are positioned and locked by the mold closing action of the die casting machine. After the frameless mold 1 is positioned and stabilized on the roller power mold bridge 3, the locking pins 6 are inserted into the die casting machine wall plate 5 as the die casting machine wall plate 5 is closed. The mold is then locked by the hydraulic cylinder to complete the mold installation operation.

[0042] The frameless mold 1 is connected to fluid connection plates 2 at both ends, which can be quickly connected to the die-casting machine connector 11 during the mold closing process; the input and output interfaces of the die-casting fluid quick connection system are concentrated on the fluid connection plates 2 on both sides of the mold cavity. The die-casting fluid quick connection system uses FLOW-3D simulation software to design the mold temperature field, and at the same time, the liquid, gas and electrical signal are centrally arranged in pipes at the reverse cavity position of the model.

[0043] The position and dimensions of the fluid connection plate 2 are matched one by one with each fluid output port of the die casting machine, and the mechanical connection between the mold and the fluid connection plate 2 is realized through the mold closing action of the die casting machine.

[0044] In this embodiment, the mold is divided into two types during the design phase: a general-purpose part and a special-purpose part, namely the general-purpose part and the special-purpose part core 7. By adjusting the relative position of the core mounting block 9 and the mold base plate 8, it is compatible with cores of different sizes. At the same time, the cooling system and ejector system are changed from the traditional mold frame support to the frameless mold 1, which becomes a special part of the die-casting mold, reducing the development cycle and reducing the processing input of materials for the general-purpose part.

[0045] Meanwhile, after the mold assembly is completed, the modular frameless die-casting mold 1 can meet the moving guidance function under the quick mold change platform 4. The frameless mold 1 is equipped with an integrated fluid connection plate 2, which realizes the automatic connection and separation of the die-casting fluid pipeline under the mold closing action of the die-casting machine, avoiding personnel intervention when changing the mold, achieving the effect of automated mold changing and speeding up the mold changing cycle.

[0046] Example 2:

[0047] This embodiment provides a die-casting quick mold change system, including the mold described in Embodiment 1, such as... Figure 1As shown, it also includes a mold changing platform 4 and a die casting machine. The mold changing platform 4 has a roller power function, which uses the guide groove at the bottom of the mold to cooperate with the roller to realize the horizontal movement of the mold.

[0048] This embodiment achieves rapid replacement of die-casting molds by coupling the die-casting machine and the mold-changing platform 4.

[0049] Example 3:

[0050] This embodiment provides a rapid mold change method for die casting, using the rapid mold change system described in Embodiment 2, including the following steps:

[0051] Step 1: Install the mold into the die-casting machine:

[0052] like Figure 1 As shown, a locking pin 6 is installed on the mold base plate 8. After the mold stops at the designated position of the roller power mold bridge 3, the die casting machine performs the mold closing action. The locking pin 6 protruding on the mold base plate 8 is inserted into the die casting machine wall plate 5. Then, by starting the hydraulic cylinder of the die casting machine wall plate 5, the mold is fastened to the die casting machine wall plate 5.

[0053] Meanwhile, the fluid connection plate 2 connects the mold side and the die-casting machine equipment side interface during the operation of the die-casting machine.

[0054] Step 2: Mold separation from die-casting machine:

[0055] When the die-casting machine is in the mold-closed state, the hydraulic cylinder of the die-casting machine wall plate 5 is released. The mold moves with the roller power mold bridge 3 and separates from the die-casting machine wall plate 5. At the same time, the guide groove at the bottom of the mold fits into the roller power mold bridge 3 to prevent it from tipping over during the movement, thus realizing the separation of the die-casting machine and the die-casting mold.

[0056] Furthermore, such as Figure 4 As shown, before installing the mold core, first adjust the relative dimensions of the core mounting block 9 and the mold base plate 8 to match different sizes of special-purpose cores 7. Figure 6 As shown, the core 7, which combines a quick-connect ejector system and a centralized fluid pipeline, is bolted to the moving mold runner base plate 10 and the core mounting block 9.

[0057] The mold movement and matching process is as follows: Figure 1 As shown, the prepared mold is placed on the mold changing platform 4. The mold changing platform 4 provides power to the rollers. The rollers rotate in the guide groove below the mold, which acts on the die-casting mold to realize the horizontal movement of the mold. The guide groove at the bottom of the mold can ensure the consistency of the mold movement direction.

[0058] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A modular die-casting mold, characterized in that, include: The mold general part includes a mold base plate, on one side of which a core mounting block and a moving mold runner base plate are connected. The moving mold runner base plate is provided with a guide groove for cooperating with the mold changing platform. On the other side of the mold base plate, a number of locking pins are installed to position and lock the mold when the die casting machine closes the mold. The dedicated core has an integrated mold ejector system on its back side. Combined with a centralized fluid pipeline, it is connected to the core mounting block and the moving mold flow channel base plate via bolts. The mold uses a core-fitting method to form a frameless mold. Fluid connection plates are connected to both ends of the frameless mold, allowing for quick-connection with the die-casting machine connector during mold closing. All ejector pins are mounted on ejector pin clamps, installed via a prefabricated ejector pin base plate countersink, and secured with cold-connected screws on the ejector pin top side plate. A quick-connect reciprocating pin is installed on the back side of the ejector pin top side plate for rapid connection with the die-casting machine's ejector cylinder. The core mounting block is positioned between the mold base plate and the special part core. The relative position of the core mounting block and the mold base plate can be adjusted to install cores of different sizes, and it also has a set mold ejector plate movement space.

2. The modular die-casting mold according to claim 1, characterized in that, The moving mold flow channel base plate uses a circular flow divider cone to position the core of the special part.

3. The modular die-casting mold according to claim 1, characterized in that, The fluid connection plate is compatible with the fluid connector of the die-casting machine.

4. The modular die-casting mold according to claim 1, characterized in that, The flow-affected areas pre-identified in the core of the special part are designed as inserts.

5. A die-casting quick mold change system, characterized in that, The mold, as described in any one of claims 1-4, further includes a mold changing platform, which provides the moving power when the mold is closed with the die-casting machine.

6. A method for rapid mold change in die casting, characterized in that, After the mold stops at the set position on the mold changing platform, the die casting machine performs a mold closing action, wherein the mold is the mold as described in any one of claims 1-4; the mold locking pins on the mold base plate are inserted into the die casting machine wall plate, and the mold is fastened to the die casting machine wall plate by activating the die casting machine wall plate hydraulic cylinder; at the same time, the mold side fluid connection plate is connected to the die casting machine side interface during the die casting machine mold closing process; When the die-casting machine is in the mold-closed state, release the hydraulic cylinder of the die-casting machine wall plate, and the mold moves with the mold bridge to detach from the die-casting machine wall plate, thus separating the die-casting machine from the mold.

7. The rapid mold change method for die casting according to claim 6, characterized in that, Before installing the mold core, first adjust the relative dimensions of the core mounting block and the mold base plate, and then fix the special part core that meets the specified dimensions to the core mounting block and the mold base plate.

8. A rapid die-casting mold-changing method according to claim 6, characterized in that, The mold is powered by rollers on the mold changing platform. The rollers rotate in the guide groove to move the mold horizontally.

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