Zinc alloy casting forming die

Abstract

The utility model discloses a zinc alloy casting forming die. The zinc alloy casting forming die comprises an upper die assembly and a lower die assembly, the upper die assembly comprises an upper die base and an upper die plate, the lower die assembly comprises a lower die plate and a lower die base, the lower surface of the upper die plate is provided with an upper cavity, the upper surface of the lower die plate is provided with a lower cavity, and the upper cavity and the lower cavity form a cavity for manufacturing the zinc alloy casting; a core pulling mechanism is arranged between the upper die base and the lower die base and comprises a sliding block, a core block and a linkage rod, the sliding block can be transversely and movably arranged between the upper die base and the lower die base, the face, making contact with the upper die base in the horizontal direction, of the sliding block is an inclined face, the inclined face obliquely extends outwards from top to bottom, the upper end of the linkage rod is connected to the upper die base, and the lower end of the linkage rod is connected to the lower die base. The lower end of the linkage rod penetrates through the sliding block and extends into the receding groove of the lower die base, the linkage rod obliquely extends outwards from top to bottom, and the end, away from the cavity, of the core block is connected to the sliding block. The sliding block linkage core-pulling structure design is achieved, occupied space is reduced, later maintenance is reduced, and the service life of the mold is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of mold forming and manufacturing technology, and in particular to a zinc alloy casting mold. Background Technology

[0002] Die casting is a method of casting liquid forging, a process completed on a dedicated die casting and forging machine. The basic process involves molten metal being cast and filled into the mold cavity at low or high speed. The mold has movable cavity surfaces, and as the molten metal cools, pressure is applied for forging, eliminating shrinkage cavities and porosity defects in the blank, and achieving a forged, fragmented grain structure within the blank, significantly improving its overall mechanical properties. Currently, some chassis panels are made of zinc alloy. These panels are typically manufactured using zinc alloy casting molds. Because the panels have side through-holes, existing zinc alloy casting molds often incorporate a core-pulling mechanism. To ensure smooth core-pulling, a cylinder is usually used to drive the mechanism. While this achieves the core-pulling action, the cylinder requires installation space, resulting in a larger overall mold size. Furthermore, the cylinder's susceptibility to failure leads to excessive maintenance and can even shorten the mold's lifespan.

[0003] Therefore, a new technology needs to be developed to solve the above problems. Utility Model Content

[0004] In view of this, the present invention addresses the deficiencies of the existing technology and its main purpose is to provide a zinc alloy casting forming mold that realizes a slider linkage core pulling structure design, eliminating the need for a cylinder, reducing space occupation, reducing subsequent maintenance, and ensuring the service life of the mold.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A zinc alloy casting mold includes an upper mold assembly and a lower mold assembly connected to each other. The upper mold assembly includes an upper mold base and an upper template, the upper template being embedded in the lower surface of the upper mold base. The lower mold assembly includes a lower template and a lower mold base, the lower template being embedded in the upper surface of the lower mold base. The lower surface of the upper template has an upper cavity, and the upper surface of the lower template has a lower cavity. The upper cavity and the lower cavity constitute a cavity for making zinc alloy castings.

[0007] A core-pulling mechanism is provided between the upper mold base and the lower mold base. The core-pulling mechanism includes a slider, a core block, and a linkage rod. The slider is arranged laterally between the upper mold base and the lower mold base. The surface of the slider that contacts the upper mold base in the horizontal direction is an inclined surface, which extends obliquely outward from top to bottom. The upper end of the linkage rod is connected to the upper mold base, and the lower end of the linkage rod passes through the slider and extends into the clearance groove of the lower mold base. The linkage rod extends obliquely outward from top to bottom. The core block can move towards or away from the cavity. The end of the core block away from the cavity is connected to the slider.

[0008] As a preferred embodiment, the upper mold base is provided with an inclined contact block extending obliquely outward from top to bottom. The inclined contact block is fixedly connected to the upper mold base by a locking screw. The inclined contact block has an inclined contact surface extending obliquely outward from top to bottom, and the inclined surface contacts the inclined contact surface.

[0009] As a preferred embodiment, the lower mold base is provided with a guide block, the guide block having a guide groove, the guide groove being connected to the relief groove, and the lower end of the linkage rod passing through the guide groove and extending into the relief groove.

[0010] As a preferred embodiment, the linkage rod includes a main rod and a limiting head integrally connected to the upper end of the main rod. The peripheral sidewall of the limiting head extends outward to the outside of the peripheral sidewall of the main rod. The upper mold base is provided with a through hole extending obliquely outward from top to bottom. A limiting step is provided on the upper side of the through hole. The upper end of the main rod extends into the through hole. The lower end face of the limiting head is restricted by the limiting step. The lower end of the main rod passes through the slider and extends into the relief groove of the lower mold base.

[0011] As a preferred embodiment, the upper mold base is provided with a sprue, and the upper mold plate is provided with a flow channel, which is connected to the sprue and the cavity respectively.

[0012] As a preferred embodiment, both the upper mold base and the lower mold base are rectangular in shape. The four corners of the top of the lower mold base are recessed with positioning holes, and sleeves are embedded in the positioning holes. The four corners of the bottom of the upper mold base are protruding with guide posts, and the guide posts are adapted to the corresponding sleeves.

[0013] As a preferred embodiment, the bottom of the lower mold base is provided with a support plate assembly, which includes a support base plate, two vertical plates, two horizontal plates, a shock-absorbing spring, and a connecting column. The two vertical plates are vertically spaced to the left and right, and the upper and lower ends of the vertical plates are respectively connected to the lower mold base and the support base plate. The two horizontal plates are stacked vertically and located between the left and right distances of the two vertical plates. The two horizontal plates are locked together by connecting screws. One end of the connecting column passes through the upper horizontal plate, extends into the lower mold base, and extends to the upper surface of the lower mold base. The other end is flush with the lower surface of the upper horizontal plate. The shock-absorbing spring is sleeved on the connecting column. The upper end of the shock-absorbing spring is constrained by the lower mold base, and the lower end of the shock-absorbing spring is constrained by the upper horizontal plate.

[0014] As a preferred embodiment, a buffer space is formed between the lower mold base, the two vertical plates, and the supporting base plate, and the two horizontal plates are located within the buffer space; the two horizontal plates are the upper horizontal plate and the lower horizontal plate, respectively; one end of the connecting column passes through the top of the upper horizontal plate, extends into the lower mold base, and extends to the upper surface of the lower mold base, while the other end is flush with the lower surface of the upper horizontal plate; the lower end of the shock-absorbing spring is constrained by the top of the upper horizontal plate.

[0015] This utility model has significant advantages and beneficial effects compared with the prior art. Specifically, as can be seen from the above technical solution, it mainly involves providing a core-pulling mechanism between the upper mold base and the lower mold base. The core-pulling mechanism includes a slider, a core block, and a linkage rod. The slider is arranged laterally between the upper mold base and the lower mold base. The surface of the slider that contacts the upper mold base in the horizontal direction is an inclined surface, which extends obliquely outward from top to bottom. The upper end of the linkage rod is connected to the upper mold base, and the lower end of the linkage rod passes through the slider and extends into the relief groove of the lower mold base. The linkage rod extends from top to bottom... Extending outward at a downward angle, the core block can move towards or away from the cavity. The end of the core block away from the cavity is connected to the slider. In this way, it can move upward through the upper mold base, driving the linkage rod to move upward. The linkage rod moves the slider in conjunction with the linkage rod. Since the linkage rod extends outward at a downward angle, when the linkage rod moves upward, it drives the slider to move outward. The slider moves the core block outward as a whole to pull the core, thus realizing the slider linkage core-pulling structure design. There is no need to set up a cylinder, which reduces the space occupation, reduces the later maintenance, and ensures the service life of the mold.

[0016] To more clearly illustrate the structural features, technical means, and specific objectives and functions of this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure of an embodiment of this utility model;

[0018] Figure 2 This is a cross-sectional schematic diagram of an embodiment of the present utility model;

[0019] Figure 3 This is a three-dimensional schematic diagram of the lower mold assembly according to an embodiment of the present invention;

[0020] Figure 4 This is a three-dimensional schematic diagram of the upper mold component according to an embodiment of the present utility model;

[0021] Figure 5 This is a partial structural schematic diagram of the lower mold assembly according to an embodiment of the present utility model;

[0022] Figure 6 This is a partial structural schematic diagram of the upper mold assembly according to an embodiment of the present utility model;

[0023] Figure 7 This is a three-dimensional schematic diagram of the panel structure according to an embodiment of the present utility model.

[0024] Explanation of reference numerals in the attached diagram:

[0025] 10. Upper mold base; 11. Limiting step

[0026] 12. Pour gate 13. Guide column

[0027] 20. Upper template 21. Upper cavity

[0028] 22. Flow channel 30. Lower template

[0029] 31. Lower cavity; 40. Lower mold base

[0030] 41. Sleeve; 50. Slider

[0031] 60, Core Block 70, Linkage Rod

[0032] 71. Main body rod 72. Limiting head

[0033] 80. Angled contact block; 90. Guide block

[0034] 91. Guide groove; 101. Support base plate

[0035] 102. Vertical plate; 103. Shock-absorbing spring

[0036] 104. Buffer space; 105. Upper horizontal plate

[0037] 106. Lower horizontal panel; 107. Panel

[0038] 401. Leaving slot. Detailed Implementation

[0039] Please refer to Figures 1 to 7As shown, it illustrates the specific structure of an embodiment of the present invention.

[0040] A zinc alloy casting mold includes an upper mold assembly and a lower mold assembly connected to each other. The upper mold assembly includes an upper mold base 10 and an upper template 20, with the upper template 20 embedded in the lower surface of the upper mold base 10. The lower mold assembly includes a lower template 30 and a lower mold base 40, with the lower template 30 embedded in the upper surface of the lower mold base 40. The lower surface of the upper template 20 is provided with an upper cavity 21, and the upper surface of the lower template 30 is provided with a lower cavity 31. The upper cavity 21 and the lower cavity 31 constitute a cavity for making zinc alloy castings. The upper mold base 10 is provided with a pouring gate 12, and the upper template 20 is provided with a flow channel 22, which is connected to the pouring gate 12 and the cavity respectively.

[0041] Both the upper mold base 10 and the lower mold base 40 are rectangular structures. The four corners of the top of the lower mold base 40 are recessed with positioning holes, and sleeves 41 are embedded in the positioning holes. The four corners of the bottom of the upper mold base 10 are protruding with guide posts 13, and the guide posts 13 are adapted to the corresponding sleeves 41.

[0042] A core-pulling mechanism is provided between the upper mold base 10 and the lower mold base 40. The core-pulling mechanism includes a slider 50, a core block 60, and a linkage rod 70. The slider 50 is arranged laterally between the upper mold base 10 and the lower mold base 40. The surface of the slider 50 that contacts the upper mold base 10 in the horizontal direction is an inclined surface, which extends obliquely outward from top to bottom. The upper end of the linkage rod 70 is connected to the upper mold base 10, and the lower end of the linkage rod 70 passes through the slider 50 and extends into the relief groove 401 of the lower mold base 40. The linkage rod 70 extends obliquely outward from top to bottom. The core block 60 can move towards or away from the cavity. The end of the core block 60 away from the cavity is connected to the slider 50. The upper mold base 10 is provided with an inclined contact block 80 extending obliquely outward from top to bottom. The inclined contact block 80 is fixedly connected to the upper mold base 10 by locking screws. The inclined contact block 80 has an inclined contact surface extending obliquely outward from top to bottom. The inclined surface contacts the inclined contact surface, thus realizing the mutual pushing action between the slider 50 and the inclined contact block 80. Also, when the inclined contact block 80 is worn too much, it can be disassembled and replaced by locking screws. Here, when the mold is opened, the upper mold base 10 moves upward, which drives the inclined contact block 80 to move upward to make room for the slider 50. The upward movement of the upper mold base 10 drives the linkage rod 70 to move upward. The linkage rod 70 drives the slider 50 to move. Since the linkage rod 70 extends obliquely outward, when the linkage rod 70 moves upward, it drives the slider 50 to move outward. The slider 50 drives the core block 60 to move outward as a whole for core pulling.

[0043] A guide block 90 is detachably mounted on the lower mold base 40 by screws. The guide block 90 has a guide groove 91, which is connected to the relief groove 401. The lower end of the linkage rod 70 passes through the guide groove 91 and extends into the relief groove 401. Here, through the design of the combination of the guide block 90 and the guide groove 91, the relative lateral movement of the linkage rod 70 is restricted within the guide groove 91, and the linkage rod 70 mainly contacts the inner sidewall of the guide groove 91. This reduces the contact friction between the linkage rod 70 and the lower mold base 40, and reduces the frictional wear on the lower mold base 40. When the guide block 90 is worn too much, it is only necessary to replace it with a new guide block 90 and lock it to the lower mold base 40 with screws.

[0044] The linkage rod 70 includes a main rod 71 and a limiting head 72 integrally connected to the upper end of the main rod 71. The peripheral sidewall of the limiting head 72 extends outward to the outside of the peripheral sidewall of the main rod 71. The upper mold base 10 is provided with a through hole extending obliquely outward from top to bottom. A limiting step 11 is provided on the upper side of the through hole. The upper end of the main rod 71 extends into the through hole. The lower end face of the limiting head 72 is restricted by the limiting step 11. The lower end of the main rod 71 passes through the slider 50 and extends into the relief groove 401 of the lower mold base 40.

[0045] The bottom of the lower mold base 40 is provided with a support plate assembly, which includes a support base plate 101, two vertical plates 102, two horizontal plates, a shock-absorbing spring 103, and a connecting column. The two vertical plates 102 are vertically spaced to the left and right, and the upper and lower ends of the vertical plates 102 are respectively connected to the lower mold base 40 and the support base plate 101. The two horizontal plates are stacked vertically and located between the left and right distances of the two vertical plates 102. The two horizontal plates are locked together by connecting screws. One end of the connecting column passes through the upper horizontal plate, extends into the lower mold base 40, and extends to the upper surface of the lower mold base 40. The other end is flush with the lower surface of the upper horizontal plate. The shock-absorbing spring 103 is sleeved on the connecting column. The upper end of the shock-absorbing spring 103 is restricted by the lower mold base 40, and the lower end of the shock-absorbing spring 103 is restricted by the upper horizontal plate. In this embodiment, a buffer space 104 is formed between the lower mold base 40, the two vertical plates 102, and the supporting base plate 101, and the two horizontal plates are located within the buffer space 104. The two horizontal plates are an upper horizontal plate 105 and a lower horizontal plate 106, respectively. One end of the connecting column passes through the upper horizontal plate 105, extends into the lower mold base 40, and reaches the upper surface of the lower mold base 40. The other end is flush with the lower surface of the upper horizontal plate 105. The lower end of the shock-absorbing spring 103 is constrained by the upper horizontal plate 105. Here, the design of the support plate assembly with the shock-absorbing spring 103 improves its shock absorption capacity, strengthens the overall structural strength, enables it to withstand greater impact forces, and further extends its service life.

[0046] Multiple buffer pads are provided between the lower transverse plate 106 and the supporting base plate 101, thereby further improving the buffering capacity. In this embodiment, the buffer pads are secured to the upper surface of the supporting base plate 101 by positioning screws, protruding from the upper surface of the supporting base plate 101, and the upper surface of the buffer pads is constrained by the lower surface of the lower transverse plate 106.

[0047] In this embodiment, the core-pulling mechanism is provided in three sets. The three sets of core-pulling mechanisms are respectively located on the left, right and front sides between the upper mold base 10 and the lower mold base 40. The slider 50 and the core block 60 of each set of core-pulling mechanisms can be connected by screw locking, snap-fit ​​structure or other detachable connection structure, as long as the slider 50 and the core block 60 can be detachably connected.

[0048] Furthermore, this utility model is mainly applied to the molding and manufacturing of panels on chassis, but is not limited to the application of panels on chassis. Preferably, the structure of the panel 107 on the chassis is as follows: Figures 5 to 7 The structure of panel 107 shown.

[0049] In summary, the key design feature of this utility model lies in the inclusion of a core-pulling mechanism between the upper and lower mold bases. This mechanism comprises a slider, a core block, and a linkage rod. The slider is laterally movable between the upper and lower mold bases. The surface of the slider that contacts the upper mold base in the horizontal direction is an inclined plane, extending obliquely downwards and outwards. The upper end of the linkage rod is connected to the upper mold base, and the lower end of the linkage rod passes through the slider and extends into the clearance groove of the lower mold base. The linkage rod extends obliquely downwards and outwards. The core block can move towards or away from the cavity. The end of the core block away from the cavity is connected to the slider. Thus, the upper mold base can move upwards, causing the linkage rod to move upwards. The linkage rod then moves the slider in conjunction with the upper mold base. Because the linkage rod extends obliquely outwards, its upward movement causes the slider to move outwards, which in turn moves the core block outwards to pull the core. This achieves a slider-linkage core-pulling structure design, eliminating the need for a cylinder, reducing space occupation, minimizing subsequent maintenance, and ensuring the service life of the mold.

[0050] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A zinc alloy casting mold, comprising an upper mold assembly and a lower mold assembly connected to each other; the upper mold assembly includes an upper mold base and an upper template, the upper template being embedded in the lower surface of the upper mold base; the lower mold assembly includes a lower template and a lower mold base, the lower template being embedded in the upper surface of the lower mold base; characterized in that: The lower surface of the upper template is provided with an upper cavity, and the upper surface of the lower template is provided with a lower cavity. The upper cavity and the lower cavity together constitute a cavity for making zinc alloy castings. A core-pulling mechanism is provided between the upper mold base and the lower mold base. The core-pulling mechanism includes a slider, a core block, and a linkage rod. The slider is arranged laterally between the upper mold base and the lower mold base. The surface of the slider that contacts the upper mold base in the horizontal direction is an inclined surface, which extends obliquely outward from top to bottom. The upper end of the linkage rod is connected to the upper mold base, and the lower end of the linkage rod passes through the slider and extends into the clearance groove of the lower mold base. The linkage rod extends obliquely outward from top to bottom. The core block can move towards or away from the cavity. The end of the core block away from the cavity is connected to the slider.

2. The zinc alloy casting mold according to claim 1, characterized in that: The upper mold base is provided with an inclined contact block extending obliquely outward from top to bottom. The inclined contact block is fixedly connected to the upper mold base by a locking screw. The inclined contact block has an inclined contact surface extending obliquely outward from top to bottom, and the inclined surface is in contact with the inclined contact surface.

3. The zinc alloy casting mold according to claim 1, characterized in that: The lower mold base is provided with a guide block, the guide block has a guide groove, the guide groove is connected to the relief groove, and the lower end of the linkage rod passes through the guide groove and extends into the relief groove.

4. The zinc alloy casting mold according to claim 1, characterized in that: The linkage rod includes a main rod and a limiting head integrally connected to the upper end of the main rod. The peripheral sidewall of the limiting head extends outward to the outside of the peripheral sidewall of the main rod. The upper mold base is provided with a through hole extending obliquely outward from top to bottom. A limiting step is provided on the upper side of the through hole. The upper end of the main rod extends into the through hole. The lower end face of the limiting head is restricted by the limiting step. The lower end of the main rod passes through the slider and extends into the relief groove of the lower mold base.

5. The zinc alloy casting mold according to claim 1, characterized in that: The upper mold base is provided with a pouring gate, and the upper mold plate is provided with a flow channel, which is connected to the pouring gate and the cavity respectively.

6. The zinc alloy casting mold according to claim 1, characterized in that: Both the upper mold base and the lower mold base are rectangular in shape. The four corners of the top of the lower mold base are recessed with positioning holes, and sleeves are embedded in the positioning holes. The four corners of the bottom of the upper mold base are protruding with guide posts, and the guide posts are adapted to the corresponding sleeves.

7. The zinc alloy casting mold according to claim 1, characterized in that: The bottom of the lower mold base is provided with a support plate assembly, which includes a support base plate, two vertical plates, two horizontal plates, a shock-absorbing spring, and a connecting column. The two vertical plates are vertically spaced to the left and right, and the upper and lower ends of the vertical plates are respectively connected to the lower mold base and the support base plate. The two horizontal plates are stacked vertically and located between the left and right distances of the two vertical plates. The two horizontal plates are locked together by connecting screws. One end of the connecting column passes through the upper horizontal plate, extends into the lower mold base, and extends to the upper surface of the lower mold base. The other end is flush with the lower surface of the upper horizontal plate. The shock-absorbing spring is sleeved on the connecting column. The upper end of the shock-absorbing spring is restricted by the lower mold base, and the lower end of the shock-absorbing spring is restricted by the upper horizontal plate.

8. The zinc alloy casting mold according to claim 7, characterized in that: The lower mold base, the two vertical plates, and the supporting base plate form a buffer space, and the two horizontal plates are located within the buffer space; the two horizontal plates are the upper horizontal plate and the lower horizontal plate, respectively; one end of the connecting column passes through the top of the upper horizontal plate, extends into the lower mold base, and extends to the upper surface of the lower mold base, while the other end is flush with the lower surface of the upper horizontal plate; the lower end of the shock-absorbing spring is restricted by the top of the upper horizontal plate.

Images