Metal die-casting die
By introducing a separate design for bending and core pulling in the metal die-casting mold, the problem that traditional molds cannot form curved faucets has been solved, improving yield and production efficiency, simplifying the process, and reducing operational difficulty and environmental impact.
Patent Information
- Application Number
- CN202520472300.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-17
AI Technical Summary
Traditional metal die-casting molds cannot form faucet bodies with curved shapes, and existing casting processes are complex, inefficient, have low yield rates, high operational requirements, and are environmentally unfriendly.
Design a metal die-casting mold, including a mold blank, mold core, core pulling, bending tube and linear drive mechanism. The cavity is defined by the bending tube and the side wall of the cavity. After the bending tube is separated from the core pulling, it becomes the internal structure of the faucet body, realizing the bending shape forming.
This technology enables the die-casting of curved faucet bodies, improving product yield and production efficiency, simplifying the process, and reducing operational difficulty and environmental impact.
Smart Images
Figure CN223916619U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of faucet manufacturing technology, and in particular to a metal die-casting mold. Background Technology
[0002] Traditional metal die-casting molds consist of structural guide pillars, sliders, straight ejectors, and angled ejectors. When die-casting faucets using these molds, the upper and lower mold cores define a cavity in the closed state. A core puller is installed within this cavity, and the core puller, along with the sidewall of the cavity, defines the mold chamber. Metal material is injected into the chamber, forming the faucet body. Finally, the core puller is extracted from the faucet body, thus producing the faucet. However, these metal die-casting molds cannot be used to form faucet bodies with curved shapes. Figure 1 A faucet body with an arc-shaped bend is shown. Figure 1 The two solid arc-shaped lines on the outside of the faucet body represent the movement path of the arc-shaped core puller when it is pulled outwards. If an arc-shaped core puller is used for die casting, after die casting, the arc-shaped core puller will interfere with the faucet body during the outward pulling process, making it impossible to pull out. In other words, existing metal die casting molds cannot completely realize the forming of all faucet bodies with curved shapes. Currently, other casting processes can be used to solve the production problem of faucet bodies that cannot be die-cast, such as using sand core casting molds. However, this method has problems such as complex processes, unstable processes, high operator requirements, large machining and polishing volumes, low yield, low production efficiency, and unfriendly working environment. Therefore, there is an urgent need to develop a metal die casting mold that can realize the die casting of curved faucet bodies and improve product yield and processing efficiency. Utility Model Content
[0003] One object of this invention is to solve at least the aforementioned problems and / or defects, and to provide at least the advantages described below.
[0004] One objective of this invention is to provide a metal die-casting mold that can achieve die-casting of curved faucet bodies, thereby improving product yield and production efficiency.
[0005] To achieve these objectives and other advantages according to the present invention, a metal die-casting mold is provided for producing a faucet body, comprising:
[0006] A mold blank, which has a mold cavity;
[0007] A pair of mold cores, the pair of mold cores being disposed inside the mold cavity, the pair of mold cores defining the cavity in the mold-closed state;
[0008] The core puller is configured to be able to enter or exit the mold cavity and is located on the outside of one end of the cavity;
[0009] A bent tube, disposed within the cavity, has one end detachably connected to the core puller, and the other end extending to the outside of the other end of the cavity. It is fixed to the pair of mold cores by a detachable positioning structure, thereby allowing the bent tube and the sidewall of the cavity to jointly define a cavity for molding the faucet body; and
[0010] A linear drive mechanism, connected to the core puller, is used to drive the core puller into the mold cavity and connect to the bend to fix one end of the bend, or to drive the core puller to disengage from one end of the bend and leave the mold cavity.
[0011] Preferably, in the metal die-casting mold, one end of the bent tube is inserted into the core puller.
[0012] Preferably, in the metal die-casting mold, one end of the bent tube is inserted into the core puller in a manner that allows the core puller to rotate relative to the axis of the core puller.
[0013] Preferably, in the metal die-casting mold, the front end of the core puller is provided with an annular groove, and one end of the bent tube is inserted into the annular groove to connect with the core puller.
[0014] Preferably, in the metal die-casting mold, the pair of mold cores includes a fixed mold core and a movable mold core disposed in a manner movable relative to the fixed mold core; the positioning structure includes a positioning pin and a positioning hole, the positioning pin is disposed on the fixed mold core, the positioning hole is disposed at the other end of the bent tube, and the positioning pin is placed in the positioning hole, thereby fixing the other end of the bent tube on the fixed mold core.
[0015] Preferably, in the metal die-casting mold, when the bent tube rotates relative to the core puller to the state of entering the cavity, the positioning hole is aligned with the positioning pin so that the positioning pin is inserted into the positioning hole, thereby fixing the other end of the bent tube on the fixed mold core.
[0016] Preferably, in the metal die-casting mold, the bent pipe is a stainless steel pipe or a copper pipe.
[0017] Preferably, in the metal die-casting mold, the bent pipe is a pipe body with an arc-shaped bent portion or a pipe body with a right-angle bent portion.
[0018] This utility model has at least the following beneficial effects:
[0019] This utility model provides a metal die-casting mold for producing a faucet body, comprising: a mold blank having a mold cavity; a pair of mold cores disposed inside the mold cavity, the pair of mold cores defining a cavity in a closed state; a core puller disposed in a manner that allows it to enter or leave the mold cavity, located on the outer side of one end of the cavity; a bent tube disposed within the cavity, one end of the bent tube being detachably connected to the core puller, the other end of the bent tube extending to the outer side of the other end of the cavity, and fixed to the pair of mold cores by a detachable positioning structure, thereby allowing the bent tube and the side wall of the cavity to jointly define a cavity for forming the faucet body; and a linear drive mechanism connected to the core puller for driving the core puller into the mold cavity and connecting with the bent tube to fix one end of the bent tube, or for driving the core puller to detach from one end of the bent tube and leave the mold cavity. Based on the mold provided by this utility model, after the die casting of the faucet body is completed, the bent tube and the part formed in the cavity together constitute the faucet body, becoming the internal structure embedded in the faucet body. It does not need to be pulled out with the core, thus solving the problem that the arc-shaped core cannot be pulled out in the traditional die casting mold. It realizes the die casting of the curved faucet body, which can improve the product yield and production efficiency.
[0020] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of the faucet body with an arc-shaped curved shape in this utility model.
[0022] Figure 2 This is a schematic diagram of the structure of the metal die-casting mold in this utility model.
[0023] Figure 3 This is a schematic diagram of the structure of the metal die-casting mold in this utility model, showing the state where the bent pipe has not entered the cavity during use. Detailed Implementation
[0024] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.
[0025] like Figure 2 and Figure 3As shown, this utility model provides a metal die-casting mold for processing a faucet body 107, comprising: a mold blank 103 having a mold cavity; a pair of mold cores disposed inside the mold cavity, the pair of mold cores defining the cavity in the closed state; a core puller 102 disposed in a manner that allows it to enter or leave the mold cavity, located outside one end of the cavity; and a bent tube 105 disposed within the cavity, one end of the bent tube 105 being detachably connected to the core puller 102, the other end of the bent tube 105 extending... Extending to the outside of the other end of the cavity, the bend 105 is fixed to the pair of mold cores by a detachable positioning structure, thereby defining a cavity for molding the faucet body 107 together with the side wall of the cavity; and a linear drive mechanism 101, which is connected to the core pull 102, for driving the core pull 102 into the mold cavity and connecting with the bend 105 to fix one end of the bend 105, or for driving the core pull 102 to disengage from one end of the bend 105 and leave the mold cavity.
[0026] Hereinafter, the pair of mold cores will be referred to as the upper mold core and the lower mold core. The upper and lower mold cores are respectively the upper half and the lower half of the cavity. When the mold is closed, the upper half and the lower half of the cavity are combined to form a complete cavity. This cavity should have the same shape as the faucet body 107 to be processed. In use, the bent pipe 105 is placed in the lower half of the cavity. The linear drive mechanism 101 works, driving the core puller 102 to enter into the mold cavity and connect to one end of the bent pipe 105, thereby fixing one end of the bent pipe 105. The other end of the bent pipe 105 is fixed to the pair of mold cores by a positioning structure. The bent tube 105 and the side wall of the cavity define a cavity. Metal material is injected into this cavity. After molding, the bent tube 105 and the molded part inside the cavity combine to form a whole, together constituting the faucet body 107. The bent tube 105 becomes the internal structure embedded in the faucet body 107. It can be understood that the bent tube 105 has the same shape as the internal pipe of the faucet body 107 to be processed, and it plays the function of the core pull 102 in the traditional die-casting mold. After processing, the core pull 102 is disengaged from the bent tube 105 under the action of the linear drive mechanism 101. The bent tube 105 does not need to be pulled out with the core pull 102, thus solving the problem that the arc-shaped core pull 102 cannot be pulled out in the traditional die-casting mold. This realizes the die-casting processing of the curved faucet body 107, which can improve the product yield and processing efficiency.
[0027] The specific process for producing the faucet body 107 using this metal die-casting mold is as follows:
[0028] During mold closing, the linear drive mechanism 101 pre-action pushes the core puller 102 into position. The operator holds the bent tube 105, inserting one end of the bent tube 105 into the core puller 102, while the other end of the bent tube 105 is fixed to a pair of mold cores via a positioning structure. The upper and lower mold cores close, and the die-casting machine's injection system injects metal material to fill the cavity. The filling material cools and solidifies, and the formed part within the cavity combines with the bent tube 105 to form a single unit, constituting the faucet body 107. Next, before mold opening, the linear drive mechanism 101 drives the core puller 102 to disengage from the bent tube 105. Afterward, the upper and lower mold cores open, and the die-casting machine's ejection system ejects the faucet body 107 from the lower mold core. The linear drive mechanism 101 immediately resets the core puller 102, and the operator places the bent tube 105. This cycle repeats to complete the product's operation.
[0029] In summary, based on the mold provided by this utility model, after the die-casting process of the faucet body 107 is completed, the bent tube 105 and the part formed in the cavity together constitute the faucet body 107, becoming the internal structure embedded in the faucet body 107. It does not need to be pulled out with the core puller 102, thus solving the problem that the arc-shaped core puller 102 cannot be pulled out in the traditional die-casting mold. It realizes the die-casting of the curved faucet body 107, which can improve the product yield and production efficiency.
[0030] In a preferred embodiment, in the metal die-casting mold, one end of the bent tube 105 is inserted into the core puller 102. This embodiment provides a simpler and easier-to-implement connection method between the bent tube 105 and the core puller 102.
[0031] In a preferred embodiment, in the metal die-casting mold, one end of the bent tube 105 is inserted into the core puller 102 in a manner that allows it to rotate relative to the axis of the core puller 102.
[0032] Based on the above design, when placing the bent tube 105 into the cavity, it can first be placed on the lower mold core 104 at any angle. That is, one end of the bent tube 105 is located inside the cavity and connected to the core puller 102, while the other part is located outside the cavity. Then, the bent tube 105 is rotated around the core puller 102 as the axis of rotation, so that the other part of the bent tube 105 also enters the cavity. Specifically, the core puller 102 can be designed as a cylindrical structure, and one end of the bent tube 105 can also be a cylindrical structure, so that one end of the bent tube 105 can be inserted in a way that allows it to rotate relative to the axis of the core puller 102.
[0033] In a preferred embodiment, in the metal die-casting mold, the front end of the core-pulling 102 is provided with an annular groove, and one end of the bent tube 105 is inserted into the annular groove, thereby connecting with the core-pulling 102.
[0034] In a preferred embodiment, in the metal die-casting mold, the pair of mold cores includes a fixed mold core and a movable mold core disposed in a manner movable relative to the fixed mold core; the positioning structure includes a positioning pin 106 and a positioning hole 108, the positioning pin 106 being disposed on the fixed mold core, the positioning hole 108 being disposed at the other end of the bent tube 105, the positioning pin being placed in the positioning hole, thereby fixing the other end of the bent tube 105 to the fixed mold core.
[0035] When the mold is closed, the positioning hole 108 is inserted into the positioning pin 106, fixing the bent tube 105 to one of the mold cores. When the mold is opened, the positioning hole 108 can be disengaged from the positioning pin 106, thereby releasing the positioning structure from fixing the bent tube 105, thus realizing the ejection of the faucet body 107.
[0036] In a preferred embodiment, in the metal die-casting mold, when the bent tube 105 is rotated relative to the core-pulling 102 to enter the cavity, the positioning hole 108 is aligned with the positioning pin 106 so that the positioning hole 108 is placed into the positioning pin 106, thereby fixing the other end of the bent tube 105 to the fixed mold core.
[0037] When the mold is opened, the ejection system ejects the faucet body 107 from the lower mold core 104, and the bend 105, as an internal structure of the faucet body 107, is separated from the positioning pin 106, thereby releasing the positioning structure from fixing the bend 105.
[0038] Specifically, a positioning hole 108 is machined at the other end of the bent tube 105, and a positioning pin 106 for positioning the bent tube 105 is inlaid on the lower mold core 104. During operation, one end of the bent tube 105 is held and inserted into the core puller 102, and the bent tube 105 is rotated around the core puller 102 as an axis to align the positioning hole 108 with the positioning pin 106 until the bent tube 105 is firmly placed in the cavity.
[0039] In a preferred embodiment, the bent pipe 105 in the metal die-casting mold is a stainless steel pipe or a copper pipe. In a preferred embodiment, the metal material used for processing can be a zinc alloy, aluminum alloy, or magnesium alloy.
[0040] In a preferred embodiment, in the metal die-casting mold, the bent pipe 105 is a pipe body with an arc-shaped bend or a pipe body with a right-angle bend.
[0041] The linear drive mechanism 101 can be a pneumatic cylinder or a hydraulic cylinder.
[0042] The following is a specific embodiment to illustrate the working process of a metal die-casting mold.
[0043] Before mold closing, the cylinder pre-action pushes the core puller 102 into position. The operator holds the bent tube 105, inserts one end of the bent tube 105 into the annular groove of the core puller 102, and rotates the bent tube 105 around the core puller 102 as an axis, aligning the positioning hole 108 with the positioning pin 106, until the bent tube 105 is fixed in the cavity. The upper and lower mold cores close, and the die-casting machine's injection system injects metal material to fill the cavity. The filling material cools and solidifies, and the formed part inside the cavity combines with the bent tube 105 to form a whole, together constituting the faucet body 107, that is, the bent tube 105 serves as the internal structure of the faucet body 107. Next, before mold opening, the cylinder drives the core puller 102 to detach from the product cavity. Afterwards, the upper and lower mold cores open, and the ejection system of the die-casting machine ejects the faucet body 107 from the lower mold core 104. The cylinder immediately performs the core-pulling 102 reset action, and the operator places the next bend 105. This process is repeated to complete the product cycle operation.
[0044] Although embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. It can be applied to various fields suitable for this utility model. Other modifications can be readily implemented by those skilled in the art. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and examples shown and described herein.
Claims
1. A metal die-casting mold for producing faucet bodies, characterized in that, include: A mold blank, which has a mold cavity; A pair of mold cores, the pair of mold cores being disposed inside the mold cavity, the pair of mold cores defining the cavity in the mold-closed state; The core puller is configured to be able to enter or exit the mold cavity and is located on the outside of one end of the cavity; A bend is disposed within the cavity, one end of which is detachably connected to the core puller, and the other end of which extends to the outside of the other end of the cavity. It is fixed to the pair of mold cores by a detachable positioning structure, thereby allowing the bend and the sidewall of the cavity to define a cavity for molding the faucet body. as well as A linear drive mechanism, connected to the core puller, is used to drive the core puller into the mold cavity and connect to the bend to fix one end of the bend, or to drive the core puller to disengage from one end of the bend and leave the mold cavity.
2. The metal die-casting mold as described in claim 1, characterized in that, One end of the bent tube is inserted into the core puller.
3. The metal die-casting mold as described in claim 2, characterized in that, One end of the bent tube is inserted into the core puller in a manner that allows it to rotate relative to the axis of the core puller.
4. The metal die-casting mold as described in claim 3, characterized in that, The front end of the core puller is provided with an annular groove, and one end of the bent tube is inserted into the annular groove to connect with the core puller.
5. The metal die-casting mold as described in claim 3 or 4, characterized in that, The pair of mold cores includes a fixed mold core and a movable mold core disposed in a manner movable relative to the fixed mold core; the positioning structure includes a positioning pin and a positioning hole, the positioning pin is disposed on the fixed mold core, the positioning hole is disposed at the other end of the bend, and the positioning pin is placed in the positioning hole, thereby fixing the other end of the bend to the fixed mold core.
6. The metal die-casting mold as described in claim 5, characterized in that, When the bent tube rotates relative to the core puller to enter the cavity, the positioning hole aligns with the positioning pin so that the positioning pin is inserted into the positioning hole, thereby fixing the other end of the bent tube to the fixed mold core.
7. The metal die-casting mold as described in claim 1, characterized in that, The bend is made of stainless steel or copper.
8. The metal die-casting mold as described in claim 1, characterized in that, The bend is a pipe body with an arc-shaped bend or a pipe body with a right-angle bend.