Hidden drawing locking structure of die-casting die

Abstract

The utility model relates to a dark pulling locking structure of a die-casting die, which comprises a movable die, a dark pulling assembly is arranged on the movable die, the dark pulling assembly comprises a dark pulling core capable of sliding on the movable die and a dark pulling driving piece used for driving the pulling core to slide, and a locking assembly used for fixing the position of the dark pulling core is arranged on one side of the movable die. The locking assembly comprises a sliding block seat capable of sliding on the movable mold, a plug pin fixed on the sliding block seat and a sliding driving piece used for driving the sliding block seat to slide horizontally, and the sliding driving piece drives the sliding block seat to move so that the plug pin can be inserted into the hidden pulling core. The bolt is inserted into the fixing hole of the dark pulling core to lock the position of the dark pulling core in the mold core, so that the problem of bad products caused by dark pulling position change due to insufficient locking force is avoided, the locking effect and the locking speed of the locking structure are improved, and the manufacturing cost is reduced while the stability of the mold and the quality of the products are ensured.

Description

Technical Field

[0001] This utility model belongs to the field of die casting mold technology and relates to a hidden locking structure for die casting molds. Background Technology

[0002] When demolding die casting molds, it is common to encounter situations where the parting surface cannot be removed. In order to ensure that the casting can be successfully formed, a hidden core-pulling structure is usually used in the mold.

[0003] In existing technologies, hydraulic cylinders are generally used for direct core pulling. However, due to the structure of the hydraulic cylinder itself, the piston rod of the hydraulic cylinder will retract under the injection pressure during the production process, and the hidden core pulling will also retract accordingly, causing the position of the hidden core pulling to change, resulting in product defects. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a hidden locking structure for die-casting molds.

[0005] The objective of this utility model can be achieved through the following technical solution: a concealed core locking structure for a die-casting mold, comprising a moving mold, wherein a concealed core assembly is provided on the moving mold, the concealed core assembly includes a concealed core slidable on the moving mold and a concealed core driving component for driving the core to slide, a locking component for fixing the position of the concealed core is provided on one side of the moving mold, the locking component includes a slider seat slidable on the moving mold, a pin fixed on the slider seat, and a sliding driving component for driving the slider seat to slide horizontally, the sliding driving component drives the slider seat to move so that the pin is inserted into the concealed core, the output end of the sliding driving component is provided with a mounting block, the slider seat is provided with a mounting groove, and the mounting block is inserted into the mounting groove from top to bottom to realize the connection between the sliding driving block and the slider seat.

[0006] In the above-mentioned concealed core locking structure of a die-casting mold, the concealed core is inclinedly arranged on the moving mold, the bottom of the moving mold is embedded with an insert block, and the concealed core driving component is arranged on the insert block and its output end is connected to the concealed core.

[0007] In the aforementioned concealed drawing and locking structure of a die-casting mold, a concealed drawing sleeve is also provided between the concealed drawing core and the moving mold, and one end of the concealed drawing sleeve is fixed to the insert block.

[0008] In the aforementioned concealed locking structure of a die-casting mold, the moving mold is provided with a sliding groove for the slider seat to slide horizontally.

[0009] In the aforementioned concealed locking structure of a die-casting mold, the concealed sleeve and the concealed core are provided with fixing holes for inserting pins.

[0010] In the aforementioned concealed pulling and locking structure of a die-casting mold, the concealed pulling drive and the sliding drive are hydraulic cylinders or pneumatic cylinders.

[0011] Compared with the prior art, this utility model locks the position of the concealed core in the mold core by setting a locking component and inserting a pin into the fixing hole of the concealed core. This avoids the problem of defective products caused by the position change of the concealed core due to insufficient locking force, improves the locking effect and speed of the locking structure, ensures the stability of the mold and the quality of the product, and reduces manufacturing costs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a cross-sectional view of the present invention;

[0014] Figure 3 This is a schematic diagram of the closing of the moving mold and the fixed mold of this utility model;

[0015] Figure 4 This is a side view of the present invention.

[0016] In the diagram, 1 is the moving mold; 21 is the concealed core puller; 22 is the concealed core puller drive component; 31 is the slider seat; 32 is the pin; 33 is the sliding drive component; 4 is the insert block; 5 is the concealed core puller sleeve; 6 is the sliding groove; 7 is the fixing hole; 8 is the fixed mold; 9 is the mounting block; and 10 is the mounting groove. Detailed Implementation

[0017] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments. Example

[0018] like Figures 1 to 4 As shown, a concealed locking structure for a die-casting mold includes a moving mold 1 and a fixed mold 8. The fixed mold 8 is the stationary part of the die-casting mold, typically mounted on the fixed template of the injection molding machine. The moving mold 1, relative to the fixed mold 8, is the movable part, typically mounted on the moving template of the injection molding machine. The main function of the moving mold 1 is to close with the fixed mold 8 during the injection molding process, forming a sprue to inject and mold the molten material. After injection molding is complete, the moving mold 1 moves to separate the mold, thereby removing the molded part.

[0019] The moving mold 1 is provided with a concealed drawing assembly, which includes a concealed drawing core 21 that can slide on the moving mold 1 and a concealed drawing drive component 22 for driving the drawing core to slide. The concealed drawing core 21 is inclinedly arranged on the moving mold 1, and the top of the concealed drawing core 21 can protrude out of the moving mold 1. An inlay block 4 is embedded in the bottom of the moving mold 1. A concealed drawing sleeve 5 is also provided between the concealed drawing core 21 and the moving mold 1. One end of the concealed drawing sleeve is fixed to the inlay block. The concealed drawing sleeve 5 can guide the concealed drawing core 21 during adjustment.

[0020] In this embodiment, the bottom of the moving mold 1 is provided with an installation notch, and the inlay block 4 and the concealed pull drive component 22 are fixed in the installation notch.

[0021] The concealed drawing drive 22 is mounted on the inlay block and its output end is connected to the concealed drawing core 21.

[0022] The moving mold 1 has a locking assembly on one side for fixing the position of the concealed core puller 21. The locking assembly includes a slider seat 31 slidable on the moving mold 1, a pin 32 fixed on the slider seat 31, and a sliding drive component 33 for driving the slider seat 31 to slide horizontally. The concealed core puller sleeve 5 and the concealed core puller 21 have fixing holes 7 for the pin 32 to be inserted. The moving mold 1 has a sliding groove 6 for the slider seat 31 to slide horizontally.

[0023] In this embodiment, the output end of the sliding drive component 33 is provided with a mounting block 9, and the slider seat 31 is provided with a mounting groove 10. The mounting block 9 is inserted into the mounting groove 10 from top to bottom to realize the connection between the sliding drive block and the slider seat 31. This arrangement facilitates the installation, disassembly and maintenance of the sliding drive component 33 by the operator. After the mounting block 9 is inserted into the mounting groove 10, the operator can fix the sliding drive component 33 on the moving mold 1 with bolts.

[0024] In this embodiment, both the concealed pull drive component 22 and the sliding drive component 33 are hydraulic cylinders or pneumatic cylinders.

[0025] The sliding drive component 33 drives the slider seat 31 to move so that the pin 32 is inserted into the fixing hole 7 of the concealed core sleeve 5 and the concealed core 21, thereby locking the position of the concealed core 21 in the mold core and avoiding the problem of defective products caused by the position change of the concealed core due to insufficient locking force.

[0026] Working principle: When the mold is closed, the concealed core puller 22 first pushes the concealed core puller 21 into the pouring cavity. The pin 32 is connected to the slider seat 31. The sliding drive 33 pushes the slider forward, so that the pin 32 is inserted into the fixing hole 7 on the side of the concealed core puller 21 to lock the concealed core puller 21.

[0027] This utility model uses a locking component to lock the position of the concealed core 21 in the mold core by inserting the pin 32 into the fixing hole 7 of the concealed core 21. This avoids the problem of defective products caused by the position change of the concealed core due to insufficient locking force, improves the locking effect and speed of the locking structure, ensures the stability of the mold and the quality of the product, and reduces manufacturing costs.

[0028] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A concealed locking structure for a die-casting mold, comprising a moving mold (1), characterized in that, The moving mold (1) is provided with a concealed core assembly, which includes a concealed core (21) that can slide on the moving mold (1) and a concealed core drive component (22) for driving the core to slide. A locking component for fixing the position of the concealed core (21) is provided on one side of the moving mold (1). The locking component includes a slider seat (31) that can slide on the moving mold (1), a pin (32) fixed on the slider seat (31), and a sliding drive component (33) for driving the slider seat (31) to slide horizontally. The sliding drive component (33) drives the slider seat (31) to move so that the pin (32) is inserted into the concealed core (21). The output end of the sliding drive component (33) is provided with a mounting block (9). The slider seat (31) is provided with a mounting groove (10). The mounting block (9) is inserted into the mounting groove (10) from top to bottom to realize the connection between the sliding drive block and the slider seat (31).

2. The concealed locking structure for a die-casting mold according to claim 1, characterized in that: The concealed core puller (21) is inclinedly arranged on the moving mold (1), and the bottom of the moving mold (1) is embedded with an inlay block (4). The concealed core puller drive (22) is arranged on the inlay block (4) and its output end is connected to the concealed core puller (21).

3. The concealed locking structure for a die-casting mold according to claim 2, characterized in that: A concealed core puller (21) and a moving mold (1) are further provided with a concealed core puller sleeve (5), one end of which is fixed to the insert block (4).

4. The concealed locking structure for a die-casting mold according to claim 3, characterized in that: The moving mold (1) is provided with a sliding groove (6) for the slider seat (31) to slide horizontally.

5. The concealed locking structure for a die-casting mold according to claim 4, characterized in that: The concealed sleeve (5) and the concealed core (21) are provided with fixing holes (7) for inserting pins (32).

6. The concealed locking structure for a die-casting mold according to claim 5, characterized in that: The aforementioned concealed pull drive (22) and sliding drive (33) are hydraulic cylinders or pneumatic cylinders.

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