Parting angle mechanism and die-casting die

Abstract

The application provides a fixed mold oblique elastic mechanism, which comprises a sliding block, a pulling block, a bolted screw and an elastic element. The sliding block comprises a guide part and a forming part. The guide part is provided with a first oblique hole and a containing groove. The guide part is used to be located in a guide hole of a fixed mold core and is in sliding connection with the fixed mold core. The forming part, the fixed mold core and a movable mold core jointly form a forming cavity. The pulling block comprises a connecting part and a pulling hook part. The connecting part is fixedly connected with the movable mold core. The pulling hook part is located in the containing groove. A matching groove is provided on the side of the containing groove away from the forming cavity. The pulling hook part is in abutment with the matching groove. The fixed mold core is provided with a second oblique hole for communicating with a mounting hole of a fixed mold embryo. The bolted screw is inserted into the first oblique hole through the mounting hole and the second oblique hole, so that the bolted screw is fixedly connected with the sliding block. The elastic element is sleeved on the bolted screw. Two ends of the elastic element are respectively in elastic abutment in the first oblique hole and the second oblique hole. The application also provides a die-casting die comprising a fixed mold assembly, a movable mold assembly, an ejection mechanism and the fixed mold oblique elastic mechanism.

Description

Technical Field

[0001] This application relates to the technical field of die casting molds, and in particular to a fixed mold inclined spring mechanism and a die casting mold. Background Technology

[0002] In the field of metal casting, circular castings are widely used due to their structural symmetry and mechanical properties. To meet different functional requirements, these castings typically require various annular grooves or channel structures. However, when the groove is located on one side of the fixed mold, traditional demolding methods are difficult to implement. Due to the space constraints of the inner ring, conventional slider core-pulling mechanisms are unsuitable, and the core-pulling mechanism needs to be prioritized for withdrawal during mold opening, leading to a more complex mold structure, cumbersome operation, and reduced production efficiency.

[0003] The current industry standard solution is a "cast as a whole, then machine" process. This involves filling the groove area during the casting stage, and then machining the desired groove after the casting is complete. While this process avoids demolding issues, the filled area creates a structural abrupt change compared to other parts during casting, leading to localized hot spots when the molten metal solidifies. This uneven solidification process can cause defects such as shrinkage cavities and porosity within the casting, generating residual stress that severely affects the product's mechanical properties and dimensional stability. Furthermore, subsequent machining will expose these internal defects to the surface, potentially rendering the product unusable. Utility Model Content

[0004] The purpose of this application is to overcome the shortcomings of the prior art and provide a fixed mold inclined spring mechanism and die casting mold that ensure product quality and have a simpler demolding process.

[0005] The objective of this application is achieved through the following technical solution:

[0006] A fixed-mold inclined spring mechanism, comprising:

[0007] The slider includes a guide portion and a forming portion. The guide portion has a first oblique hole and a receiving groove. The guide portion is located in the guide hole of the fixed mold core and is slidably connected to the fixed mold core. The forming portion, the fixed mold core and the moving mold core together form a cavity.

[0008] A pull block, the pull block including a connecting part and a pull hook part, the connecting part being fixedly connected to the moving mold core, the pull hook part being located in the receiving groove, the receiving groove having a mating groove on the side opposite to the cavity, the pull hook part abutting against the mating groove;

[0009] The bolt is provided with a second oblique hole for communicating with the mounting hole of the fixed mold blank. The bolt is inserted into the first oblique hole through the mounting hole and the second oblique hole so that the bolt is fixedly connected to the slider.

[0010] An elastic element is sleeved on a bolt screw, and its two ends elastically abut against the first oblique hole and the second oblique hole, respectively.

[0011] In one embodiment, each slider has two first oblique holes, which are symmetrically arranged.

[0012] In one embodiment, the pull block is a one-piece molded structure.

[0013] In one embodiment, the slider further includes a wear-resistant block disposed on the side of the receiving groove away from the cavity, and the wear-resistant block has a mating groove on the side facing the receiving groove, and the hook portion abuts against the mating groove.

[0014] In one embodiment, the wear-resistant block and the slider are detachably connected by a connector. The wear-resistant block has a first connecting hole, and the slider has a corresponding second connecting hole. The connector passes through the first connecting hole and the second connecting hole in sequence.

[0015] In one embodiment, a groove is provided on the side of the guide portion away from the forming portion, and a slide bar is correspondingly provided on the inner wall of the guide hole, the slide bar being disposed in the groove.

[0016] In one embodiment, the bolt includes a head and a screw rod, the screw rod being used to insert into the mounting hole, the second oblique hole and the first oblique hole, and the head being movably abutting against the limiting groove of the fixed template.

[0017] A die-casting mold includes: a fixed mold assembly, a moving mold assembly, and a fixed mold tilting spring mechanism as described in any of the above embodiments. The fixed mold assembly includes a fixed mold blank, a fixed mold core, and a fixed mold mandrel. The fixed mold core is fixed on the fixed mold blank, and the fixed mold mandrel is press-fitted into the fixed mold core. The moving mold assembly includes a moving mold blank, a moving mold core, and a moving mold mandrel. The moving mold core is fixed on the moving mold blank, and the moving mold mandrel is press-fitted into the moving mold core. The moving mold mandrel, the fixed mold core, and the slider of the fixed mold tilting spring mechanism cooperate to form a cavity. The fixed mold core has a guide hole, and the guide portion of the slider is slidably connected to the guide hole. The fixed mold blank has a mounting hole, and the fixed mold core has a second tilting hole. The bolt of the fixed mold tilting spring mechanism is inserted into the mounting hole and the second tilting hole.

[0018] Compared with the prior art, this application has at least the following advantages:

[0019] The operation process of the aforementioned fixed mold tilting spring mechanism is as follows: When the mold opens, the moving mold assembly moves away from the fixed mold assembly, causing the moving mold core to separate from the fixed mold core. At the same time, the moving mold core drives the pull block to move away from the fixed mold assembly. The pull hook of the pull block abuts against the matching groove of the slider, and the pull block pulls the slider through the pull hook. Simultaneously, the elastic element rebounds, and the auxiliary slider pops out along the guide hole towards the moving mold. The forming part and the casting gradually separate. The slider slides a predetermined distance, and the bolt screw limits and tightens the slider to stop the slider from sliding. The forming part and the casting are separated, realizing core pulling and ensuring that the casting is ejected smoothly. When the mold closes, the moving mold returns to its original position, and the moving mold assembly pushes the slider to move and reset along the guide hole towards the fixed mold assembly. At the same time, the elastic element is compressed, and the bolt screw moves away from the fixed mold assembly to release the limit. The pull block is located in the receiving groove, the mold is closed, and the next cycle begins.

[0020] The aforementioned fixed mold tilting spring mechanism uses a hook in the moving mold core to engage with the sliding block in a groove. When the mold is opened, the sliding block is pulled, and an elastic element in a compressed state is provided to assist the sliding block. This eliminates the need for a separate power source for the fixed mold tilting spring mechanism, reduces the number of parts, simplifies the structure and operation of the die-casting mold, reduces the risk of failure, and improves production efficiency.

[0021] The fixed-mold inclined spring mechanism enables the one-time forming of circular castings with grooves on the fixed mold side, avoiding defects caused by localized hot spots during the overall casting process, which is common in "first integral casting and then machining" processes. This improves the mechanical properties and dimensional stability of the product and reduces the scrap rate. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a die-casting mold according to an embodiment.

[0024] Figure 2 This is a schematic diagram of the fixed mold inclined spring mechanism according to one embodiment;

[0025] Figure 3 for Figure 2 A sectional view of the fixed mold inclined spring mechanism shown;

[0026] Figure 4 for Figure 3 A partial enlarged view of the sectional view shown;

[0027] Figure 5 for Figure 2The diagram shows another state of the fixed mold inclined spring mechanism.

[0028] Figure 6 for Figure 2 The diagram shows another state of the fixed mold inclined spring mechanism.

[0029] Figure 7 for Figure 2 A schematic diagram of the slider structure of the fixed mold inclined spring mechanism shown;

[0030] Figure 8 for Figure 2 A schematic diagram of the wear-resistant block of the fixed mold inclined spring mechanism shown;

[0031] Figure 9 for Figure 2 The diagram shows the structure of the pull block of the fixed mold inclined spring mechanism. Detailed Implementation

[0032] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application 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 application.

[0033] 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.

[0034] 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 application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] To better understand the technical solution and beneficial effects of this application, the following detailed description is provided in conjunction with specific embodiments:

[0036] Please see Figures 1 to 9The fixed mold inclined spring mechanism 10 of this utility model includes a slider 100, a pull block 200, a bolt screw 300, and an elastic element 310. The slider 100 includes a guide portion 110 and a forming portion 120. The guide portion 110 has a first inclined hole 1101 and a receiving groove 1102. The guide portion 110 is located in the guide hole 400 of the fixed mold core 21c and is slidably connected to the fixed mold core 21c. The forming portion 120, the fixed mold core 21c, and the moving mold core 22c together form a cavity 23. The pull block 200 includes a connecting portion 210 and a hook portion 220. The connecting portion 210 is fixedly connected to the moving mold core 22c. The hook portion 220 is located in the receiving groove 1102. A mating groove 1103 is opened on the side of the receiving groove 1102 away from the cavity 23. The hook portion 220 abuts against the mating groove 1103. The bolt 300 is fixedly connected to the slider 100. The fixed mold blank 21a has a mounting hole 500, and the fixed mold core 21b has a second inclined hole 600. The mounting hole 500 and the second inclined hole 600 are connected. The bolt 300 is used to be inserted into the first inclined hole 1101 through the mounting hole 500 and the second inclined hole 600. The bolt 300 is used to be slidably connected to the fixed mold assembly 22. The elastic element 310 is sleeved on the bolt 300. The two ends of the elastic element 310 are used to elastically abut against the first inclined hole 1101 and the second inclined hole 600 respectively.

[0037] The operation process of the fixed mold tilting spring mechanism 10 is as follows: When the mold opens, the moving mold assembly 22 moves away from the fixed mold assembly 21, causing the moving mold core 22c to separate from the fixed mold core 21c. At the same time, the moving mold core 22c drives the pull block 200 to move away from the fixed mold assembly 21. The pull hook part 220 of the pull block 200 abuts against the mating groove 1103 of the slider 100, and the pull block 200 pulls the slider 100 through the pull hook part 220. At the same time, the elastic element 310 rebounds and pushes the slider 100 to pop out along the guide hole 400 towards the moving mold assembly 22, and the forming part 120 gradually... Separation: The slider 100 slides to a predetermined distance, and the bolt screw 300 limits and tightens the slider 100, causing it to stop sliding. The forming part 120 separates from the casting, realizing core pulling and ensuring the casting is ejected smoothly. When the mold is closed, the moving mold assembly 22 returns to its original position. The moving mold assembly 22 pushes the slider 100 to reset along the guide hole 110 towards the fixed mold assembly 21, simultaneously compressing the elastic element 310. The bolt screw 300 moves away from the fixed mold assembly 21 to release the limit. The pull block 200 is located in the receiving groove 1102, and the mold is closed in place, ready for the next cycle.

[0038] In this embodiment, the fixed mold tilting spring mechanism 10, through the engagement of the hook portion 220 of the moving mold core 22c with the mating groove 1103 of the slider 100, pulls the slider 100 during mold opening. An elastic element 310 in a compressed state assists the slider 100 in sliding. This eliminates the need for a separate power source for the fixed mold tilting spring mechanism 10, reducing the number of parts, simplifying the structure and operation of the die-casting mold 20, lowering the risk of failure, and improving production efficiency. Furthermore, the fixed mold tilting spring mechanism 10 enables one-time forming of circular castings with grooves on the fixed mold side, avoiding defects caused by localized hot spots during the overall casting process in the "first integral casting, then machining" process. This improves the mechanical properties and dimensional stability of the product and reduces the scrap rate.

[0039] Furthermore, the elastic element 310 is a spring or an elastic sleeve, which gives the elastic element 310 better elasticity.

[0040] like Figure 5 and Figure 6 As shown, in one embodiment, each slider 100 has two first oblique holes 1101, which are symmetrically arranged. It is understood that each first oblique hole 1101 contains a bolt 300. By symmetrically arranging the two bolts 300, the load is rationally distributed to the two support points, improving the stress distribution. This reduces the load intensity and size of a single bolt 300, making the overall structure more compact.

[0041] like Figures 3 to 9 As shown, in one embodiment, the pull block 200 is a one-piece molded structure. It can be understood that by integrally molding the connecting part 210 and the hook part 220, the overall structural strength of the pull block 200 is improved, and the stability of the fixed mold inclined spring mechanism 10 during operation is enhanced.

[0042] like Figures 3 to 8 As shown, in one embodiment, the slider 100 further includes a wear-resistant block 130. The wear-resistant block 130 is disposed on the side of the receiving groove 1102 opposite to the cavity 23. A mating groove 1103 is formed on the side of the wear-resistant block 130 facing the receiving groove 1102, and the hook portion 220 abuts against the mating groove 1103. It can be understood that by providing the wear-resistant block 130 on the contact surface between the slider 100 and the pull block 200, the wear of the slider 100 is reduced and its service life is extended.

[0043] like Figures 3 to 8As shown, in one embodiment, the wear-resistant block 130 and the slider 100 are detachably connected via a connector (not shown). The wear-resistant block 130 has a first connecting hole 1301, and the slider has a corresponding second connecting hole (not shown). The connector passes through the first connecting hole 1301 and the second connecting hole in sequence. Specifically, in this embodiment, the connector is a screw, and the second connecting hole is a threaded hole. The threaded connection facilitates quick installation and removal of the wear-resistant block 130. By replacing the wear-resistant block 130 individually, the service life of the slider 100 is extended, and the stability of the fixed mold inclined spring mechanism 10 is improved.

[0044] like Figures 3 to 7 As shown, in one embodiment, a groove 1104 is provided on the side of the guide portion 110 opposite to the forming portion 120, and a slide bar 410 is correspondingly provided on the inner wall of the guide hole 400, with the slide bar 410 disposed in the groove 1104. Specifically, the groove 1104 is a dovetail groove, and the shape of the slide bar 410 is adapted to the dovetail groove. The dovetail groove achieves its self-locking characteristic through its unique trapezoidal cross-section, which can prevent the slider 100 from shifting or loosening during the casting process, ensuring the forming accuracy of the casting. In addition, the dovetail groove also has a positioning function, ensuring the accurate installation position of the slider 100 and avoiding assembly errors.

[0045] like Figure 3 , Figure 5 and Figure 6 As shown, in one embodiment, the bolt 300 includes a head 320 and a screw 330. The screw 330 is used to insert into the mounting hole 500, the second oblique hole 600, and the first oblique hole 1101. The head 320 movably abuts against the limiting groove 700 of the fixed template 21a. In this embodiment, the limiting groove 700 is formed along the mounting hole 500 on the fixed template 21a to prevent the head of the bolt 300 from directly impacting the fixed template 21a, thereby extending the service life of the die-casting mold 20.

[0046] like Figure 1As shown, this application also provides a die-casting mold 20, which includes a fixed mold assembly 21, a moving mold assembly 22, and a fixed mold tilting spring mechanism 10 as described in any of the above embodiments. The fixed mold assembly 21 includes a fixed mold blank 21a, a fixed mold core 21b, and a fixed mold core 21c. The fixed mold core 21b is fixed on the fixed mold blank 21a, and the fixed mold core 21c is press-fitted into the fixed mold core 21b. The moving mold assembly 22 includes a moving mold blank (not shown), a moving mold core (not shown), and a moving mold core 22c. The moving mold core is fixed on the moving mold blank, and the moving mold core 22c is press-fitted into the moving mold core. The moving mold core 22c, the fixed mold core 21c, and the slider 100 of the fixed mold tilting spring mechanism 10 cooperate to form a cavity 23. The fixed mold core 21c has a guide hole 400. The guide part 110 of the slider 100 is slidably connected to the guide hole 400. The fixed mold blank 21a has a mounting hole 500, and the fixed mold core 21b has a second inclined hole 600. The bolt screw 300 of the fixed mold tilting spring mechanism 10 is inserted into the mounting hole 500 and the second inclined hole 600.

[0047] In this embodiment, the die-casting mold 20, by setting a fixed mold tilting spring mechanism 10, realizes the forming and demolding of the groove on one side of the fixed mold of the circular casting, simplifying subsequent machining processes, improving production efficiency, and ensuring stable casting quality. The fixed mold tilting spring mechanism 10 has a simple structure and is easy to install and maintain. In addition, the die-casting mold 20 realizes the one-time forming of the circular casting with the groove on the fixed mold side through the fixed mold tilting spring mechanism 10, simplifying the process route and improving production efficiency and product quality.

[0048] Compared with the prior art, this application has at least the following advantages:

[0049] The operation process of the aforementioned fixed mold tilting spring mechanism is as follows: When the mold opens, the moving mold assembly moves away from the fixed mold assembly, causing the moving mold core to separate from the fixed mold core. At the same time, the moving mold core drives the pull block to move away from the fixed mold assembly. The pull hook of the pull block abuts against the matching groove of the slider, and the pull block pulls the slider through the pull hook. Simultaneously, the elastic element rebounds, and the auxiliary slider pops out along the guide hole towards the moving mold assembly. The forming part and the casting gradually separate. The slider slides a predetermined distance, and the bolt screw limits and tightens the slider to stop the slider from sliding. The forming part and the casting are separated, realizing core pulling and ensuring that the casting is ejected smoothly. When the mold closes, the moving mold assembly returns to its original position. The moving mold assembly pushes the slider to move along the guide hole towards the fixed mold assembly to reset, and simultaneously compresses the elastic element. The bolt screw moves away from the fixed mold assembly to release the limit. The pull block is located in the receiving groove, the mold is closed, and the next cycle begins.

[0050] The aforementioned fixed mold tilting spring mechanism uses a hook in the moving mold core to engage with the sliding block in a groove. When the mold is opened, the sliding block is pulled, and an elastic element in a compressed state is provided to assist the sliding block. This eliminates the need for a separate power source for the fixed mold tilting spring mechanism, reduces the number of parts, simplifies the structure and operation of the die-casting mold, reduces the risk of failure, and improves production efficiency.

[0051] The fixed-mold inclined spring mechanism enables the one-time forming of circular castings with grooves on the fixed mold side, avoiding defects caused by localized hot spots during the overall casting process, which is common in "first integral casting and then machining" processes. This improves the mechanical properties and dimensional stability of the product and reduces the scrap rate.

[0052] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A fixed-mold inclined spring mechanism, characterized in that, include: The slider includes a guide portion and a forming portion. The guide portion has a first oblique hole and a receiving groove. The guide portion is located in the guide hole of the fixed mold core and is slidably connected to the fixed mold core. The forming portion, the fixed mold core and the moving mold core together form a cavity. A pull block, the pull block including a connecting part and a pull hook part, the connecting part being fixedly connected to the moving mold core, the pull hook part being located in the receiving groove, the receiving groove having a mating groove on the side opposite to the cavity, the pull hook part abutting against the mating groove; A bolt is fixedly connected to the slider. The fixed mold core has a second oblique hole for communicating with the mounting hole of the fixed mold blank. The bolt is inserted into the first oblique hole through the mounting hole and the second oblique hole. The bolt is used to slide to the moving mold assembly. An elastic element is sleeved on a bolt screw, and its two ends elastically abut against the first oblique hole and the second oblique hole, respectively.

2. The fixed-mold inclined spring mechanism according to claim 1, characterized in that, Each slider has two first oblique holes, which are symmetrically arranged.

3. The fixed-mold inclined spring mechanism according to claim 1, characterized in that, The pull block is a one-piece molded structure.

4. The fixed-mold inclined spring mechanism according to claim 1, characterized in that, The slider also includes a wear-resistant block, which is disposed on the side of the receiving groove away from the cavity. The wear-resistant block has a mating groove on the side facing the receiving groove, and the hook portion abuts against the mating groove.

5. The fixed-mold inclined spring mechanism according to claim 4, characterized in that, The wear-resistant block and the slider are detachably connected by a connector. The wear-resistant block has a first connecting hole, and the slider has a corresponding second connecting hole. The connector passes through the first connecting hole and the second connecting hole in sequence.

6. The fixed-mold inclined spring mechanism according to claim 1, characterized in that, The guide portion has a groove on the side opposite to the forming portion, and a slide bar is correspondingly provided on the inner wall of the guide hole, with the slide bar disposed in the groove.

7. The fixed-mold inclined spring mechanism according to claim 1, characterized in that, The bolt includes a head and a screw rod. The screw rod is used to insert into the mounting hole, the second oblique hole and the first oblique hole. The head is movably abutted against the limiting groove of the fixed template.

8. A die-casting mold, characterized in that, include: A fixed mold assembly, a moving mold assembly, and a fixed mold tilting spring mechanism according to any one of claims 1-7, wherein the fixed mold assembly includes a fixed mold blank, a fixed mold core, and a fixed mold core, the fixed mold core being fixed on the fixed mold blank, and the fixed mold core being press-fitted into the fixed mold core; the moving mold assembly includes a moving mold blank, a moving mold core, and a moving mold core, the moving mold core being fixed on the moving mold blank, and the moving mold core being press-fitted into the moving mold core, wherein the moving mold core, the fixed mold core, and the slider of the fixed mold tilting spring mechanism cooperate to form a cavity, the fixed mold core having a guide hole, the guide portion of the slider being slidably connected to the guide hole, the fixed mold blank having a mounting hole, the fixed mold core having a second tilting hole, and the bolt of the fixed mold tilting spring mechanism being inserted into the mounting hole and the second tilting hole.

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