Structure for preventing water accumulation in deep cavity of lower sliding block of die-casting die

Abstract

The invention discloses a structure for preventing water accumulation in a deep cavity of a lower slide block of a die-casting die, which is characterized by comprising a ground side slide block seat, a sprue spreader, a ground side slide block, a mold core and a fixed die frame, the sprue spreader and the ground side slide block are arranged on the ground side slide block seat, the ground side slide block is positioned above the sprue spreader, the mold core is movably arranged on the ground side slide block seat, and the fixed die frame is positioned above the ground side slide block seat. The upper end of the mold core sequentially penetrates through the sprue spreader and the ground side sliding block, movable gaps are formed between the mold core and the sprue spreader and between the mold core and the ground side sliding block, the upper end of the mold core extends into a mold cavity of the ground side sliding block, the bottom of the mold cavity of the ground side sliding block is provided with a sealing contact face, and a drainage gap is formed between the mold core and the sealing contact face in the mold opening state. A spring for elastically supporting the mold core downwards is arranged on the ground side sliding block seat, a ball head extending out of the plug block is arranged at the lower end of the mold core, and a jacking and pressing inclined plane for jacking and pressing the ball head is arranged on the fixed mold frame. The mold has the beneficial effects that the structure is simple, a drainage channel can be formed in the bottom of the deep cavity in the mold opening state, water accumulation is avoided, and the casting quality can be remarkably improved.

Description

Technical Field

[0001] The invention relates to the field of die casting moulds, and in particular to a structure for preventing water from accumulating in a deep cavity of a slider under a die casting mould. Background Art

[0002] Die casting is a precision casting method that uses high pressure to force molten metal into a complex metal mold. The castings produced by die casting are called die castings. The tensile strength of these materials is nearly twice that of ordinary casting alloys, which is more positive for aluminum alloy automobile wheels, frames and other parts that are expected to be produced with higher strength and impact-resistant materials.

[0003] Die castings come in a variety of shapes, and many of them have structures such as connecting columns, which require a cavity on the mold and a protruding core in the middle of the cavity. However, this structure can easily cause water to accumulate in the cavity when the release agent is sprayed before die casting, and it is difficult to blow away the water by blowing, resulting in serious casting defects. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides a structure for preventing water from accumulating in the deep cavity of the slider under the die-casting mold. The structure is simple and solves the problem of water accumulating in the concave cavity of the mold.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A structure for preventing water from accumulating in the deep cavity of a slider under a die casting mold, characterized in that it comprises a ground side slider seat, a diverter cone, a ground side slider, a core, and a fixed mold frame, wherein the diverter cone and the ground side slider are arranged on the ground side slider seat, the ground side slider is located above the diverter cone, the core is movably arranged on the ground side slider seat, the upper end of the core passes through the diverter cone and the ground side slider in sequence, an active gap is provided between the core and the diverter cone and the ground side slider, the upper end of the core extends into the cavity of the ground side slider, the bottom of the cavity of the ground side slider has a sealing contact surface, and a drainage gap is provided between the core and the sealing contact surface in an open mold state, the ground side slider seat has a spring cavity, a spring is provided in the spring cavity, a spring limit platform is provided on the core, the spring is elastically supported downward on the spring limit platform, a blocking block at the lower end of the spring limit platform is provided at the lower end of the spring cavity, a ball head extending out of the blocking block is provided at the lower end of the core, and a pressing inclined surface for pressing the ball head is provided on the fixed mold frame.

[0007] Furthermore, the sealing contact surface is a conical surface, and the upper portion of the core has a conical portion that matches the sealing contact surface.

[0008] Furthermore, a fixed die locking block is arranged on the top pressing inclined surface, and the top surface of the fixed die locking block is an inclined surface.

[0009] The beneficial effects of the present invention include: simple structure, being able to form a drainage channel at the bottom of the deep cavity in an open mold state to avoid water accumulation, and being able to significantly improve the casting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the present invention;

[0011] Figure 2 yes Figure 1 A partial enlarged view of

[0012] Figure 3 It is a schematic diagram of the structure of the mold clamping state of the present invention;

[0013] Figure 4 yes Figure 3 A partial enlarged view of . DETAILED DESCRIPTION

[0014] The present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0015] A kind of Figure 1-4 The structure shown in the figure for preventing water accumulation in the deep cavity of the slider under the die-casting mold includes a ground side slider seat 1, a diverter cone 2, a ground side slider 3, a core 4, and a fixed mold frame 5. The diverter cone 2 and the ground side slider 3 are arranged on the ground side slider seat 1, and the ground side slider 3 is located above the diverter cone 2. The core 4 is vertically movably arranged on the ground side slider seat 1, and the upper end of the core 4 passes through the diverter cone 2 and the ground side slider 3 in sequence. There is a movable gap between the core 4 and the diverter cone 2 and the ground side slider 3. The upper end of the core 4 extends into the cavity of the ground side slider 3. The bottom of the cavity of the ground side slider 3 has a sealing contact surface 31, and the sealing contact surface 31 is a conical surface. The upper part of the core 4 has a conical portion that cooperates with the sealing contact surface 31. In the open mold state, there is a drainage gap between the core 4 and the sealing contact surface 31. In the closed mold state, the conical portion of the core 4 contacts the sealing contact surface 31 to achieve sealing and water sealing.

[0016] In order to realize automatic sealing and drainage of the core 4, the ground side slider seat 1 of this embodiment has a spring cavity 11, a spring 6 is arranged in the spring cavity 11, and a spring limit platform 41 is arranged on the core 4. The spring 6 is elastically supported downward on the spring limit platform 41, and the core 4 moves downward in a natural state. A blocking block 7 is arranged at the lower end of the spring cavity 11 to limit the lower end of the spring limit platform 41, which is used to limit the lower end of the spring limit platform 41. The lower end of the core 4 has a ball head 42 extending out of the blocking block 7, and the fixed mold frame 5 has a pressing inclined surface 51 for pressing the ball head 42. A fixed mold locking block 8 is arranged on the pressing inclined surface 51, and the top surface of the fixed mold locking block 8 is an inclined surface. When the mold is closed, the ground side slider seat 1 is combined with the fixed mold frame 5, and at this time, the top surface of the fixed mold locking block 8 pushes the core 4 upward.

[0017] The technical solutions provided by the embodiments of the present invention are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A structure for preventing water accumulation in the deep cavity of the slider under the die casting mold, characterized in that: The invention comprises a ground side slider seat (1), a diverter cone (2), a ground side slider (3), a core (4), and a fixed mold frame (5), wherein the diverter cone (2) and the ground side slider (3) are arranged on the ground side slider seat (1), the ground side slider (3) is located above the diverter cone (2), the core (4) is movably arranged on the ground side slider seat (1), the upper end of the core (4) passes through the diverter cone (2) and the ground side slider (3) in sequence, and there is a movable gap between the core (4) and the diverter cone (2) and the ground side slider (3), the upper end of the core (4) extends into the mold cavity of the ground side slider (3), and the bottom of the mold cavity of the ground side slider (3) has A sealing contact surface (31), a drainage gap is provided between the core (4) and the sealing contact surface (31) in the mold opening state, a spring cavity (11) is provided on the ground side slider seat (1), a spring (6) is arranged in the spring cavity (11), a spring limit platform (41) is provided on the core (4), the spring (6) is elastically supported downward on the spring limit platform (41), a blocking block (7) at the lower end of the spring cavity (11) is provided at the lower end of the spring limit platform (41), a ball head (42) extending out of the blocking block (7) is provided at the lower end of the core (4), and a pressing inclined surface (51) is provided on the fixed mold frame (5) for pressing the ball head (42).

2. The structure for preventing water accumulation in the deep cavity of the slider under the die casting mold according to claim 1, characterized in that: The sealing contact surface (31) is a conical surface, and the upper part of the core (4) has a conical portion that matches the sealing contact surface (31).

3. The structure for preventing water accumulation in the deep cavity of the slider under the die casting mold according to claim 1, characterized in that: A fixed die locking block (8) is arranged on the top pressing inclined surface (51), and the top surface of the fixed die locking block (8) is an inclined surface.

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