Die-casting die with replaceable die core

Abstract

The utility model discloses a die-casting die with a replaceable die core, which comprises a lower die, a movable sliding chute is arranged in the middle of the lower die, clamping parts are symmetrically arranged in the middle of the movable sliding chute, a lower die core is clamped in the middle of each clamping part, each clamping part comprises a movable clamping plate with an L-shaped structure, limiting clamping plates are arranged on two sides of each movable clamping plate, and the limiting clamping plates are arranged on the movable clamping plates. The mold has the advantages that the limiting clamping plate and the movable clamping plate are used in cooperation, the mold can adapt to mold cores of different shapes and sizes, such as a round shape and a rectangular shape, the same set of mold can be used for producing various different products, and therefore the requirements for multiple sets of molds are reduced, cost is saved, and production efficiency is improved. The die core can be quickly replaced by rotating the lead screw, the whole die does not need to be disassembled, the die replacement time is shortened, and the production efficiency is improved.

Description

Technical Field

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

[0002] Die casting is a method of casting liquid die forging, a process completed on a special die casting die forging machine. Its basic process is that the molten metal is first cast and filled into the mold cavity at a low or high speed. The mold has a movable cavity surface, which is pressurized and forged as the molten metal cools.

[0003] In the prior art, when the die-casting mold is in use, the staff needs to replace different mold cores according to different process requirements. The current replacement method requires the use of corresponding tools to tighten and loosen multiple mounting bolts. This method of replacing the mold core is slow and easily affects the staff. Some improved molds can only be used for mold cores of one shape and structure. For example, a rectangular mold core is simply fixed from both ends by pins, which cannot adapt to mold cores of different shapes and sizes. Utility Model Content

[0004] 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.

[0005] To achieve the above object, the utility model provides the following technical solution: a die-casting mold with a replaceable mold core, comprising:

[0006] A lower mold, wherein a movable slide groove is provided in the middle of the lower mold, a clamping portion is symmetrically provided in the middle of the movable slide groove, the middle of the clamping portion clamps the lower mold core, the clamping portion comprises an L-shaped movable clamping plate, and limiting clamping plates are provided on both sides of the movable clamping plate for fixing lower mold cores of different shapes;

[0007] The upper mold can be raised and lowered and is placed above the lower mold. The bottom of the lower mold is detachably provided with an upper mold core, and the top of the upper mold is slidably connected with a movable latch for fixing the upper mold core.

[0008] Preferably, the bottom of the lower mold is fixedly connected to a supporting base.

[0009] Preferably, the four corners of the top of the lower mold are fixedly connected with guide columns, and the top of the guide columns is fixedly connected with a top plate.

[0010] Preferably, the middle part of the movable slide groove is rotatably connected to a No. 1 bidirectional screw rod, the No. 1 bidirectional screw rod is threadedly connected to the movable splint, the top of the movable splint is fixedly connected to a fixed slide rod, the limiting splint is slidably connected to the outside of the fixed slide rod, the top of the movable splint is rotatably connected to a No. 2 bidirectional screw rod, the No. 2 bidirectional screw rod is threadedly connected to the limiting splint.

[0011] Preferably, the upper die is slidably connected to a guide column, and a return spring is sleeved on the outer side of the guide column and located between the lower die and the upper die.

[0012] Preferably, the top of the upper mold core is fixedly connected with a positioning rod, the middle of the upper mold is provided with a positioning hole used in conjunction with the positioning rod, the top of the upper mold is fixedly connected with a limiting sleeve, and the movable pin is slidably connected to the bottom of the limiting sleeve.

[0013] Preferably, one end of the limiting sleeve is threadedly connected to a fastening screw, one end of the fastening screw is rotatably connected to a movable latch, and one side of the upper mold core is provided with a limiting slot used in conjunction with the movable latch.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: by using the limiting clamp in conjunction with the movable clamp, the mold can adapt to mold cores of different shapes and sizes, such as round and rectangular, which allows the same set of molds to be used to produce a variety of different products, thereby reducing the demand for multiple sets of molds and saving costs. By turning the screw, the mold core can be quickly replaced without disassembling the entire mold, thereby shortening the mold change time and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the lower mold core of the rectangular structure of the utility model when it is installed;

[0016] Figure 2 This is a schematic diagram of the structure of the circular lower mold core of the utility model when it is installed;

[0017] Figure 3 This is a schematic diagram of the position structure of the mobile slide of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the limit sliding sleeve of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the movable splint of the utility model.

[0020] In the figure: 1. Support base; 2. Guide column; 3. Return spring; 4. Lower mold; 5. Upper mold; 6. Top plate; 7. No. 1 two-way screw; 8. Moving slide; 9. Lower mold core; 10. Moving clamp; 11. No. 2 two-way screw; 12. Limit clamp; 13. Fixed slide; 14. Upper mold core; 15. Positioning rod; 16. Limit slot; 17. Movable latch; 18. Limit sleeve; 19. Fastening screw. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 , 2 As shown in Figures 3, 4 and 5, the utility model provides a technical solution: a die-casting mold with a replaceable mold core, comprising: a lower mold 4, a movable slide groove 8 is opened in the middle of the lower mold 4, a clamping part is symmetrically slidably installed in the middle of the movable slide groove 8, and the middle of the clamping part clamps the lower mold core 9, and the clamping part comprises an L-shaped movable clamping plate 10, the contact surface between the movable clamping plate 10 and the lower mold core 9 is an inclined surface, and its thickness gradually increases along the middle of the lower mold 4 toward one end, and limiting clamping plates 12 are arranged on both sides of the movable clamping plate 10 for fixing the lower mold core 9 of different shapes, and the base of the lower mold core 9 is rectangular and circular; the upper mold 5 can be raised and lowered and placed above the lower mold 4, and the bottom of the lower mold 4 is detachably installed with an upper mold core 14, and the top of the upper mold 5 is slidably connected with a movable pin 17 for fixing the upper mold core 14.

[0023] It should be noted that when the utility model needs to install the lower mold core 9 of the circular structure, the lower mold core 9 and the positioning hole on the top of the lower mold 4 are positioned by pins, and then the No. 1 bidirectional screw rod 7 is rotated, and the No. 1 bidirectional screw rod 7 drives the two movable clamps 10 to move toward the middle, so that the base of the lower mold core 9 is pressed and fixed by the movable clamp 10, and the two limiting clamps 12 are driven to move closer to the movable clamp 10 by the No. 2 bidirectional screw rod 11, so that the lower mold core 9 is clamped and fixed from the side. When the lower mold core 9 of the rectangular structure is installed, the spacing of the limiting clamps 12 is adjusted by the No. 2 bidirectional screw rod 11 according to the width of the lower mold core 9, so that the limiting clamps 12 and the lower mold core 9 are fixed. The width is adapted, and then the movable splint 10 is driven by the No. 1 bidirectional screw 7 to move toward the middle of the movable slide 8, so as to fix the lower mold core 9 from both ends and both sides of the lower mold core 9, so that the movable splint 10 cooperates with the limiting splint 12 to realize the replacement and fixation of the lower mold core 9 of different shapes. By using the limiting splint 12 in conjunction with the movable splint 10, the mold can adapt to mold cores of different shapes and sizes, such as round and rectangular. This allows the same set of molds to be used to produce a variety of different products, thereby reducing the demand for multiple sets of molds and saving costs. By rotating the screw, the mold core can be quickly replaced without disassembling the entire mold, thereby shortening the mold change time and improving production efficiency.

[0024] See also Figure 1 , 2As shown in Figure 3, the bottom of the lower mold 4 is installed with a supporting base 1 by bolts, the four corners of the top of the lower mold 4 are installed with guide columns 2 by bolts, and the top of the guide columns 2 is installed with a top plate 6 by bolts.

[0025] It should be noted that the utility model connects the lower mold 4 and the top plate 6 into one body through the guide column 2, thereby increasing the stability of the entire mold and avoiding uneven pressure that may cause damage to the mold.

[0026] See also Figure 5 As shown, the middle part of the movable slide groove 8 is rotatably connected to a No. 1 bidirectional screw rod 7, which is threadedly connected to the movable splint 10, and the top of the movable splint 10 is installed with a fixed slide rod 13 by bolts, and the limiting splint 12 is slidably connected to the outer side of the fixed slide rod 13, and the top of the movable splint 10 is rotatably connected to a No. 2 bidirectional screw rod 11, which is threadedly connected to the limiting splint 12.

[0027] It should be noted that the bidirectional screw of the utility model includes a central axis and two groups of symmetrically arranged threads, and the rotation direction of each group of threads is opposite, that is, one group is right-handed and the other group is left-handed. When the central axis rotates, the nut is allowed to move in one direction on the screw, and another independent nut can move in the opposite direction at the same time. The No. 1 bidirectional screw 7 can drive the two movable splints 10 to move toward the middle at the same time, and the No. 2 bidirectional screw 11 drives the two No. 2 bidirectional screws 11 to move closer to the movable splints 10, so that the lower mold core 9 can be moved from four directions, so that it can cope with lower mold cores 9 of different shapes and structures.

[0028] See also Figure 4 As shown, the upper mold 5 is slidably connected to the guide column 2, and a return spring 3 is sleeved on the outer side of the guide column 2 and located between the lower mold 4 and the upper mold 5. The top of the upper mold core 14 is fixedly connected with a positioning rod 15, and the middle of the upper mold 5 is provided with a positioning hole used in conjunction with the positioning rod 15. A limiting sleeve 18 is installed on the top of the upper mold 5 by bolts, and a movable latch 17 is slidably connected to the bottom of the limiting sleeve 18. One end of the limiting sleeve 18 is threadedly connected with a fastening screw 19, and one end of the fastening screw 19 is rotatably connected to the movable latch 17. One side of the upper mold core 14 is provided with a limiting slot 16 used in conjunction with the movable latch 17.

[0029] It should be noted that a hole is provided in the middle of the upper mold 5 of the utility model to cooperate with the top of the upper mold core 14. The upper mold core 14 is pushed upward so that the upper mold core 14 fits with the upper mold 5. The positioning rod 15 is used to position the upper mold core 14 so that the shape of the upper mold core 14 matches the lower mold core 9. When the limit slot 16 moves to the position corresponding to the movable latch 17, the fastening screw 19 is rotated. Under the extrusion of the thread, the movable latch 17 moves toward the limit slot 16. When the movable latch 17 is inserted into the limit slot 16, the upper mold core 14 is connected to the upper mold 5, thereby completing the replacement and installation of the upper mold core 14.

[0030] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0032] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A die-casting mold with a replaceable mold core, characterized in that: include: A lower mold (4), wherein a movable slide groove (8) is provided in the middle of the lower mold (4), a clamping portion is symmetrically provided in the middle of the movable slide groove (8), a lower mold core (9) is clamped in the middle of the clamping portion, and the clamping portion comprises an L-shaped movable clamping plate (10), and limiting clamping plates (12) are provided on both sides of the movable clamping plate (10) for fixing lower mold cores (9) of different shapes; The upper mold (5) can be raised and lowered and placed above the lower mold (4); the bottom of the lower mold (4) is detachably mounted with an upper mold core (14); the top of the upper mold (5) is slidably connected with a movable latch (17) for fixing the upper mold core (14).

2. A die-casting mold with a replaceable mold core according to claim 1, characterized in that: The bottom of the lower mold (4) is fixedly connected to a support base (1).

3. The die-casting mold with replaceable mold core according to claim 1, characterized in that: The four corners of the top of the lower mold (4) are fixedly connected to guide columns (2), and the top of the guide columns (2) is fixedly connected to a top plate (6).

4. The die-casting mold with replaceable mold core according to claim 1, characterized in that: The middle part of the movable slide groove (8) is rotatably connected to a No. 1 bidirectional screw rod (7), and the No. 1 bidirectional screw rod (7) is threadedly connected to the movable clamp plate (10). The top of the movable clamp plate (10) is fixedly connected to a fixed slide rod (13), and the limiting clamp plate (12) is slidably connected to the outer side of the fixed slide rod (13). The top of the movable clamp plate (10) is rotatably connected to a No. 2 bidirectional screw rod (11), and the No. 2 bidirectional screw rod (11) is threadedly connected to the limiting clamp plate (12).

5. A die-casting mold with replaceable mold core according to claim 4, characterized in that: The upper die (5) is slidably connected to the guide column (2), and a return spring (3) is sleeved on the outer side of the guide column (2) and located between the lower die (4) and the upper die (5).

6. The die-casting mold with replaceable mold core according to claim 1, characterized in that: The top of the upper mold core (14) is fixedly connected to a positioning rod (15), the middle of the upper mold (5) is provided with a positioning hole used in conjunction with the positioning rod (15), the top of the upper mold (5) is fixedly connected to a limiting sliding sleeve (18), and the movable latch (17) is slidably connected to the bottom of the limiting sliding sleeve (18).

7. A die-casting mold with a replaceable mold core according to claim 6, characterized in that: One end of the limiting sliding sleeve (18) is threadedly connected to a fastening screw (19), one end of the fastening screw (19) is rotatably connected to a movable latch (17), and one side of the upper mold core (14) is provided with a limiting slot (16) used in conjunction with the movable latch (17).

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