Die-casting die with replaceable die core

Abstract

The die-casting die with the replaceable die core comprises a female die base, a fixing frame is fixedly arranged on the upper end face of the female die base, an air cylinder is arranged in the fixing frame, a limiting disc is arranged below the air cylinder, a die core box is arranged at the lower end of the limiting disc, and a connecting sleeve is fixedly arranged on the upper end face of the die core box. Threaded rods are symmetrically arranged on the outer wall of the limiting disc, clamping plates are arranged at one ends of the threaded rods, a motor is fixedly arranged in the female die base, the output end of the motor is connected with a worm, the outer wall of the worm is in meshed connection with a worm gear, a fixing rod is fixedly connected to the middle of the worm gear, and an eccentric wheel is arranged on the outer wall of the fixing rod. And a bottom plate is arranged above the eccentric wheel, an ejector rod is arranged on the upper end face of the bottom plate, a push plate is fixedly installed at one end of the ejector rod, the mold core can be rapidly disassembled and replaced, a formed product obtained after stamping can be rapidly demolded, and practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of die casting moulds, in particular to a die casting mould with a replaceable mould core. Background Art

[0002] Die casting mold is a tool for casting metal parts, a tool that completes the die casting process on a special die casting die forging machine. The basic process of die casting is: the molten metal is first cast and filled into the mold cavity at a low speed or high speed. The mold has a movable cavity surface, which is pressurized and forged with the cooling process of the molten metal, which not only eliminates the shrinkage and porosity defects of the blank, but also makes the internal structure of the blank reach the broken grains in the forged state. The comprehensive mechanical properties of the blank are significantly improved.

[0003] The existing patent with publication number CN216370105U proposes a die-casting mold with a replaceable mold core. The die-casting mold is placed on a static mold body by setting a static mold core. At this time, the clamping piece drives the clamping block toward the static mold body, so that the clamping block presses the static mold core onto the static mold body. At this time, the placement groove, mounting hole, and connecting hole are opened to facilitate the processing of the static mold body and the static mold core. At this time, the static mold body and the static mold core are locked by the setting of the clamping piece and the clamping block, which is easy to operate. Damage to the clamping block and the clamping piece does not affect the static mold body and the static mold core, thereby saving costs.

[0004] However, the die-casting mold does not have the function of quickly demolding the die-cast products. The existing method is often to dry the mold itself, and the staff demolds it, which affects the use of the die-casting mold, reduces production efficiency, and is time-consuming and labor-intensive. In response to the above problems, we proposed a die-casting mold with a replaceable core for improvement and upgrading. Utility Model Content

[0005] The purpose of the utility model is to provide a die-casting mold with a replaceable mold core to solve the problems raised in the above background technology.

[0006] In order to solve the above problems, the following technical solutions are provided:

[0007] A die-casting mold with a replaceable mold core is designed, including a die base, a fixing frame is fixedly provided on the upper end surface of the die base, a cylinder is provided inside the fixing frame and a limiting disk is provided below the cylinder, a core box is provided at the lower end of the limiting disk and a connecting sleeve is fixedly provided on the upper end surface of the core box, threaded rods are symmetrically provided on the outer wall of the limiting disk and a clamping plate is provided at one end of the threaded rod, a motor is fixedly provided inside the die base and a worm is connected to the output end of the motor and a worm wheel is meshingly connected to the outer wall of the worm, a fixing rod is fixedly connected to the middle part of the worm wheel and an eccentric wheel is provided on the outer wall of the fixing rod, a bottom plate is provided above the eccentric wheel and a push rod is provided on the upper end surface of the bottom plate, and a push plate is fixedly installed on one end of the push rod.

[0008] Furthermore, a control panel is provided on the upper end surface of the die base on one side of the fixing frame, the cylinder is fixedly installed in the middle of the fixing frame, and one end of the cylinder is fixedly connected to the punching rod and one end of the punching rod is fixedly connected to the limit plate.

[0009] Furthermore, a threaded column is fixedly installed inside the limiting disk and is threadedly connected to the connecting sleeve, one end of the threaded rod is fixedly connected to a threaded knob and the other end of the threaded rod is rotatably connected to the outer wall of the clamping plate, and the outer wall of the threaded rod is threadedly connected to the inside of the limiting disk.

[0010] Furthermore, the worm and the worm wheel are both rotatably mounted inside the die base, the outer wall of the fixing rod is rotatably mounted on the hinge seat, and the hinge seat is fixedly mounted inside the die base.

[0011] Furthermore, the number of the eccentric wheels is three, the outer wall of the eccentric wheel is closely connected to the bottom plate, and the number of the push rods is two.

[0012] Furthermore, the push plate is arranged inside the lower mold, and two movable grooves are opened inside the lower mold. One end of the push rod is slidably connected inside the movable groove and the extended end is connected to the push plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model device is provided with components such as a limit plate, a threaded rod, a clamping plate, a connecting sleeve, a threaded column, and a core box. The clamping plate at one end of the threaded rod is driven to move outward by manually rotating two threaded knobs. At this time, the clamping plate is detached from the outer wall of the connecting sleeve, and then the connecting sleeve on the core box is rotated out of the threaded column on the punching rod. The core can be quickly disassembled and replaced, and the operation is simple.

[0015] 2. The utility model device is provided with components such as a motor, a worm, a worm wheel, a fixed rod, an eccentric wheel, a bottom plate, a push rod, and a push plate. The worm is driven by the driving motor to engage the worm wheel to rotate, and the worm wheel drives the three eccentric wheels on the fixed rod to squeeze the bottom plate above, so that the bottom plate drives the two push rods to slide inside the lower mold to lift the push plate, and the stamped product is quickly demolded, which is beneficial to reduce the burden on the staff, save time and effort, and has a simple structure.

[0016] With reference to the following description and drawings, specific embodiments of the present invention are disclosed in detail, indicating the manner in which the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications and equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of a die-casting mold with a replaceable mold core according to the utility model;

[0019] Figure 2 It is a schematic diagram of a partial cross-sectional structure of a die-casting mold with a replaceable mold core according to the utility model;

[0020] Figure 3 for Figure 2 A schematic diagram of a local enlarged structure;

[0021] Figure 4 for Figure 3 Schematic diagram of local split structure;

[0022] Figure 5 for Figure 2 Schematic diagram of the internal enlarged split structure.

[0023] In the figure: 1. die base; 2. control panel; 3. fixing frame; 4. cylinder; 5. core box; 6. lower die; 7. ejector rod; 8. limit plate; 9. punch rod; 10. threaded knob; 11. connecting sleeve; 12. threaded rod; 13. clamping plate; 14. threaded column; 15. motor; 16. worm; 17. worm wheel; 18. fixing rod; 19. hinged seat; 20. eccentric wheel; 21. bottom plate; 22. push plate; 23. movable groove. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] like Figure 1 - Figure 5As shown, the present embodiment provides a die-casting mold with a replaceable mold core, including a die base 1, a fixing frame 3 is fixedly arranged on the upper end surface of the die base 1, a cylinder 4 is arranged inside the fixing frame 3 and a limiting disk 8 is arranged below the cylinder 4, a core box 5 is arranged at the lower end of the limiting disk 8 and a connecting sleeve 11 is fixedly arranged on the upper end surface of the core box 5, threaded rods 12 are symmetrically arranged on the outer wall of the limiting disk 8 and a clamping plate 13 is arranged at one end of the threaded rod 12, a motor 15 is fixedly arranged inside the die base 1, a worm 16 is connected to the output end of the motor 15 and a worm wheel 17 is meshedly connected to the outer wall of the worm 16, a fixing rod 18 is fixedly connected to the middle part of the worm wheel 17 and an eccentric wheel 20 is arranged on the outer wall of the fixing rod 18, a bottom plate 21 is arranged above the eccentric wheel 20 and a push rod 7 is arranged on the upper end surface of the bottom plate 21, and a push plate 22 is fixedly installed at one end of the push rod 7.

[0026] Preferably, a control panel 2 is provided on the upper end surface of the die base 1 on one side of the fixed frame 3, the cylinder 4 is fixedly installed in the middle of the fixed frame 3, and one end of the cylinder 4 is fixedly connected to the punching rod 9 and one end of the punching rod 9 is fixedly connected to the limiting plate 8, so as to drive the core box 5 at one end of the punching rod 9 to perform stamping work, a threaded column 14 is fixedly installed inside the limiting plate 8 and the threaded column 14 is threadedly connected to the connecting sleeve 11, one end of the threaded rod 12 is fixedly connected to the threaded knob 10 and the other end of the threaded rod 12 is rotatably connected to the outer wall of the clamping plate 13, the outer wall of the threaded rod 12 is threadedly connected to the inside of the limiting plate 8, so as to facilitate the quick disassembly and replacement of the core box 5, the worm 16 and the worm wheel 17 are both rotatably installed inside the die base 1, the outer wall of the fixed rod 18 is rotatably installed on the hinged seat 19 and the hinged seat 19 is fixedly installed inside the die base 1, so as to facilitate the stable rotation of the eccentric wheel 20 on the outer wall of the fixed rod 18.

[0027] Preferably, three eccentric wheels 20 are provided, and the outer wall of the eccentric wheel 20 is fittedly connected to the bottom plate 21. Two push rods 7 are provided to facilitate driving the push rods 7 to rise and fall. The push plate 22 is provided inside the lower mold 6. Two movable grooves 23 are provided inside the lower mold 6. One end of the push rod 7 is slidably connected to the movable groove 23 and the extended end is connected to the push plate 22, which is convenient for quickly demolding the molded product, saving time and effort.

[0028] The use principle and use process of the utility model are as follows: the staff manually rotates the two threaded knobs 10 to drive the clamping plate 13 at one end of the threaded rod 12 to move outward. At this time, the clamping plate 13 is detached from the outer wall of the connecting sleeve 11, and then the connecting sleeve 11 on the core box 5 is rotated out from the threaded column 14 on the punching rod 9. The core can be quickly disassembled and replaced, and the worm 16 is driven by the driving motor 15 to engage the worm gear 17 to rotate. At this time, the worm gear 17 drives the three eccentric wheels 20 on the fixed rod 18 to squeeze the bottom plate 21 above, so that the bottom plate 21 drives the two ejector rods 7 to slide inside the lower mold 6 to lift the push plate 22, and the stamped product is quickly demolded.

[0029] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

Claims

1. A die-casting mold with a replaceable mold core, characterized in that: The die base comprises a die-forming base (1), the upper end surface of the die-forming base (1) is fixedly provided with a fixing frame (3), a cylinder (4) is provided inside the fixing frame (3), a limiting plate (8) is provided below the cylinder (4), a core box (5) is provided at the lower end of the limiting plate (8), and a connecting sleeve (11) is fixedly provided on the upper end surface of the core box (5), a threaded rod (12) is symmetrically provided on the outer wall of the limiting plate (8), and a clamping plate (13) is provided at one end of the threaded rod (12), and the die-forming base (1) is provided with a fixing frame (3), a cylinder (4) is provided inside the fixing frame (3), and a limiting plate (8) is provided below the cylinder (4), a core box (5) is provided at the lower end of the limiting plate (8), and a connecting sleeve (11) is fixedly provided on the upper end surface of the core box (5), a threaded rod (12) is symmetrically provided on the outer wall of the limiting plate (8), and a clamping plate (13) is provided at one end of the threaded rod (12), and the die A motor (15) is fixedly arranged inside the base (1), and a worm (16) is connected to the output end of the motor (15), and a worm wheel (17) is meshingly connected to the outer wall of the worm wheel (16), a fixed rod (18) is fixedly connected to the middle of the worm wheel (17), and an eccentric wheel (20) is arranged on the outer wall of the fixed rod (18), a bottom plate (21) is arranged above the eccentric wheel (20), and a push rod (7) is arranged on the upper end surface of the bottom plate (21), and a push plate (22) is fixedly installed on one end of the push rod (7).

2. A die-casting mold with a replaceable mold core according to claim 1, characterized in that: The upper end surface of the die base (1) is located on one side of the fixed frame (3) and is provided with a control panel (2); the cylinder (4) is fixedly mounted in the middle of the fixed frame (3); one end of the cylinder (4) is fixedly connected to the punching rod (9); and one end of the punching rod (9) is fixedly connected to the limit plate (8).

3. The die-casting mold with replaceable mold core according to claim 1, characterized in that: A threaded column (14) is fixedly installed inside the limiting plate (8), and the threaded column (14) is threadedly connected to the connecting sleeve (11); one end of the threaded rod (12) is fixedly connected to a threaded knob (10), and the other end of the threaded rod (12) is rotatably connected to the outer wall of the clamping plate (13); the outer wall of the threaded rod (12) is threadedly connected to the inside of the limiting plate (8).

4. A die-casting mold with a replaceable mold core according to claim 1, characterized in that: The worm (16) and the worm wheel (17) are both rotatably mounted inside the die base (1); the outer wall of the fixing rod (18) is rotatably mounted on the hinge seat (19), and the hinge seat (19) is fixedly mounted inside the die base (1).

5. The die-casting mold with replaceable mold core according to claim 1, characterized in that: The number of the eccentric wheels (20) is three, the outer wall of the eccentric wheel (20) is closely connected to the bottom plate (21), and the number of the push rods (7) is two.

6. The die-casting mold with replaceable mold core according to claim 1, characterized in that: The push plate (22) is arranged inside the lower mold (6), and two movable grooves (23) are provided inside the lower mold (6). One end of the push rod (7) is slidably connected inside the movable groove (23) and the extended end is connected to the push plate (22).

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