Secondary core-pulling structure of mold

Abstract

The utility model relates to the field of die-casting dies, in particular to a secondary core-pulling structure of a die. The secondary core pulling structure of the mold comprises a power mechanism, a first sliding block, a driving plate and a second sliding block, the power mechanism is connected with the first sliding block, a driving inclined plane is arranged on the first sliding block, a transmission surface matched with the driving inclined plane is arranged on the driving plate, a gap exists between the driving inclined plane and the transmission surface, and the second sliding block is connected with the driving inclined plane. And the driving plate is connected with the second sliding block. Only a single power mechanism needs to be arranged, the second sliding block can be driven by the driving plate to conduct secondary core pulling on the mold, the structure is simple, and stability and practicability are achieved.

Description

Technical Field

[0001] This utility model relates to the field of die casting molds, and in particular to a secondary core-pulling structure for molds. Background Technology

[0002] For molds with complex cavity structures, a secondary core-pulling mechanism is often used to remove the core. This is to address the issue of excessive clamping force exerted by the product on the core-pulling area.

[0003] The problem with existing technology is that both the primary and secondary core-pulling sliders require a power mechanism to drive them or a transmission mechanism to achieve linkage, which complicates the mold structure. Therefore, existing technology needs improvement. Utility Model Content

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a mold secondary core-pulling structure, which is simple and reliable.

[0005] The technical solution adopted by this utility model to solve the problem is: a secondary core-pulling structure for a mold, comprising,

[0006] Power mechanism, first slider, drive plate, second slider;

[0007] The power mechanism is connected to the first slider, the first slider is provided with a driving inclined surface, the driving plate is provided with a transmission surface adapted to the driving inclined surface, there is a gap between the driving inclined surface and the transmission surface, and the driving plate is connected to the second slider.

[0008] As a further improvement to the above technical solution, the power mechanism is a hydraulic cylinder.

[0009] As a further improvement to the above technical solution, the number of the first sliders is two, the drive plate is arranged horizontally, and both ends of the drive plate are provided with the transmission surface, and the two transmission surfaces are respectively movably connected to the two first sliders.

[0010] As a further improvement to the above technical solution, the second slider is disposed on the lower side of the first slider and the drive plate, and the middle part of the drive plate is fixedly connected to the second slider.

[0011] As a further improvement to the above technical solution, the output end of the power mechanism is attached to a horizontally arranged fixing block, and the fixing block is fixedly connected to the two first sliders by screws.

[0012] As a further improvement to the above technical solution, a sliding plane is provided on the inner wall of the first slider, and the drive plate overlaps on the sliding plane.

[0013] A mold includes a secondary core-pulling structure as described above, and further includes a first insert and a second insert, wherein the first insert is disposed in the second insert;

[0014] The front end of the first slider is provided with a first through groove, and the rear end of the first insert is provided with a first boss, which is engaged with the first through groove.

[0015] The second insert is fixedly connected to the second slider.

[0016] The beneficial effects of this utility model are as follows: a drive plate is provided, a transmission surface is provided on the drive plate, a second slider is fixedly connected to the drive plate, and a drive inclined surface is provided on the first slider. The first slider is translated under the drive of the power mechanism to perform the first core pulling of the mold. After the translation reaches the set distance, the drive inclined surface and the transmission surface cooperate with each other, and the drive plate drives the second slider to perform the second core pulling of the mold. There is no need to set up a separate power mechanism or a complex transmission mechanism for the second core pulling of the mold. The structure is simple, stable and practical. Attached Figure Description

[0017] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of the preferred embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram showing the connection between the drive plate and the first slider of this utility model;

[0020] Figure 3 Cross-sectional view of a preferred embodiment of the present invention Figure 1 ;

[0021] Figure 4 Cross-sectional view of a preferred embodiment of the present invention Figure 2 .

[0022] In the figure: 1-power mechanism, 2-first slider, 21-driving inclined surface, 22-sliding plane, 23-first through groove, 3-drive plate, 31-transmission surface, 4-second slider, 5-fixed block, 6-first insert, 61-first boss, 7-second insert. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is for distinguishing technical features only and should not be construed as indicating or implying relative importance, the quantity of indicated technical features, or the order of the indicated technical features. In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installing," and "connecting" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of these terms in this utility model based on the specific content of the technical solution.

[0026] Reference Figures 1 to 4 A secondary core-pulling structure for a mold, in a preferred embodiment, includes:

[0027] There are two first sliders 2. The first slider 2 is provided with a driving inclined surface 21 and a sliding plane 22 on its inner wall. The sliding plane 22 is located below the driving inclined surface 21. The front end of the first slider 2 is provided with a first through groove 23.

[0028] The drive plate 3 is arranged horizontally, and both ends of the drive plate 3 are provided with transmission surfaces 31. The bottom of the drive plate 3 overlaps on the sliding plane 22. The transmission surfaces 31 are adapted to the drive inclined plane 21. There is a gap between the drive inclined plane 21 and the transmission surfaces 31. The two transmission surfaces 31 are respectively movably connected to the two first sliders 2.

[0029] The second slider 4 is located on the lower side of the first slider 2 and the drive plate 3, and the middle part of the drive plate 3 is fixedly connected to the second slider 4.

[0030] The power mechanism 1 is a hydraulic cylinder. A horizontally positioned fixing block 5 is attached to the output end of the power mechanism 1. The fixing block 5 is fixedly connected to both first sliders 2 by screws. The drive plate 3 is connected to the second slider 4.

[0031] In a preferred embodiment, the power mechanism 1 drives the first slider 2 to translate, performing the first core-pulling process on the insert. When the slider has translated to a set distance (e.g., 80-100mm), the driving inclined surface 21 on the first slider 2 abuts against the transmission surfaces 31 at both ends of the drive plate 3. The first slider 2 drives the drive plate 3 to translate, thereby driving the second slider 4, which is fixed to the drive plate 3, to move, performing the second core-pulling process on the insert. Only a single power mechanism 1 is needed, and the drive plate 3 can be used to quickly perform the second core-pulling process on the insert, resulting in a simple and stable structure.

[0032] The first insert 6 and the second insert 7 are inserted into the second insert 7. The rear end of the first insert 6 is provided with a first boss 61, which is connected to the first through groove 23. The second insert 7 is fixedly connected to the second slider 4.

[0033] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A secondary core-pulling structure for a mold, characterized in that, include: Power mechanism (1), first slider (2), drive plate (3), second slider (4); The power mechanism (1) is connected to the first slider (2), the first slider (2) is provided with a driving inclined surface (21), the driving plate (3) is provided with a transmission surface (31) adapted to the driving inclined surface (21), there is a gap between the driving inclined surface (21) and the transmission surface (31), and the driving plate (3) is connected to the second slider (4).

2. The mold secondary core-pulling structure as described in claim 1, characterized in that: The power mechanism (1) is a hydraulic cylinder.

3. The mold secondary core-pulling structure as described in claim 1, characterized in that: There are two first sliders (2), the drive plate (3) is arranged horizontally, and both ends of the drive plate (3) are provided with the transmission surface (31), and the two transmission surfaces (31) are respectively movably connected to the two first sliders (2).

4. The mold secondary core-pulling structure as described in claim 1, characterized in that: The second slider (4) is located on the lower side of the first slider (2) and the drive plate (3), and the middle part of the drive plate (3) is fixedly connected to the second slider (4).

5. The mold secondary core-pulling structure as described in claim 1, characterized in that: The output end of the power mechanism (1) is connected to a horizontally arranged fixing block (5), and the fixing block (5) is fixedly connected to the two first sliders (2) by screws.

6. The mold secondary core-pulling structure as described in claim 1, characterized in that: The inner wall of the first slider (2) is provided with a sliding plane (22), and the drive plate (3) is attached to the sliding plane (22).

7. A mold, comprising a secondary core-pulling structure as described in any one of claims 1-6, characterized in that: It includes a first insert (6) and a second insert (7), wherein the first insert (6) is inserted into the second insert (7); The first slider (2) has a first through groove (23) at its front end and the first insert (6) has a first boss (61) at its rear end. The first boss (61) is connected to the first through groove (23). The second insert (7) is fixedly connected to the second slider (4).

Images