CN110802210A

CN110802210A - Mould with exhausting function

Info

Publication number: CN110802210A
Application number: CN201911098655.6A
Authority: CN
Inventors: 张莹; 饶龙瑾; 任怀德
Original assignee: Zhuhai Runxingtai Electrical Equipment Co Ltd
Current assignee: Zhuhai Runxingtai Electrical Equipment Co Ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-02-18
Anticipated expiration: 2039-11-12
Also published as: CN110802210B

Abstract

The invention provides a mold with an exhaust function, wherein a mold core insert is arranged in the mold, the mold core insert consists of a plurality of exhaust inserts which are arranged, one end of each exhaust insert is communicated with the bottom surface of the mold, each exhaust insert is provided with a thimble position, a first exhaust groove and a second exhaust groove, the end part of each first exhaust groove is communicated with the thimble position, the first exhaust groove is communicated with the second exhaust groove, and one end of each second exhaust groove is communicated with the bottom surface of the mold. The mold with the exhaust function divides the characteristic part which is difficult to exhaust in the mold cavity into the exhaust insert pieces, and the deep cavity and the narrower part of the gap are separated to be beneficial to mold saving and polishing and die casting production.

Description

Mould with exhausting function

Technical Field

The invention relates to the technical field of mold manufacturing, in particular to a mold with an exhaust function.

Background

With the development of the mold industry, the appearance of a plurality of products is more and more peculiar, which adds a plurality of difficulties for mold manufacturing. Compared with the prior art, for deep cavity products, because the mold cavity is deep, gas at the deep cavity is not easy to be discharged during die casting, and negative pressure is easy to form, the product molding quality is poor, for example, the problems of insufficient casting, generation of bubbles or air holes on the surface of the product and the like occur. Therefore, how to solve the problem of difficult venting of the deep cavity part in the die-casting die becomes a technical problem to be solved urgently.

Disclosure of Invention

The present invention is directed to solving the problems described above.

According to a first aspect of the invention, a mold core insert is arranged in the mold, the mold core insert is composed of a plurality of arranged exhaust inserts, one end of each exhaust insert is communicated with the bottom surface of the mold, each exhaust insert is provided with a thimble position, a first exhaust groove and a second exhaust groove, the end of each first exhaust groove is communicated with the thimble position, the first exhaust groove is communicated with the second exhaust groove, and one end of the second exhaust groove is communicated with the bottom surface of the mold.

The mold with the air exhaust function can also have the following characteristics:

and a third exhaust groove is also formed in one end, communicated with the bottom surface of the mold, of the exhaust insert and communicated with the ejector pin.

the third exhaust groove is also communicated with the second exhaust groove.

the exhaust insert further comprises an insert hanging table, the insert hanging table is arranged on two sides of one end of the exhaust insert, and the insert hanging table is used for positioning the exhaust insert and the mold in the Z-axis direction.

the exhaust insert further comprises an X-axis positioning part and a Y-axis positioning part, and the X-axis positioning part is used for positioning the exhaust insert and the mold in the X direction; and the Y-axis positioning part is used for positioning the exhaust insert and the mold in the Y direction.

the exhaust insert is provided with an inlaying identification code.

The mold with the exhaust function has the advantages that:

1. the characteristic part which is difficult to exhaust in the die cavity of the die is divided into the exhaust inserts one by one, and the deep cavity and the narrow part of the gap are separated to facilitate die-saving polishing, die-casting production and improvement of the quality of a product casting;

2. by adopting the mosaic type mold core insert structure, the surface of a product casting is not easy to generate bad phenomena such as air holes, air bubbles and the like, and the improvement of the surface smoothness and the die-casting formability of the product is facilitated;

3. by adopting the exhaust insert structure, the periphery of the exhaust insert is completely exhausted, the exhaust space is increased, the flow of exhausted gas is increased, and the exhaust efficiency is high;

4. by adopting the exhaust insert structure, the part which is not easy to exhaust in the mould cavity can not generate negative pressure, and the lack casting of a product casting can not be caused;

5. the assembly is simple, and the processing cost is low.

Other characteristic features and advantages of the invention will become apparent from the following description of exemplary embodiments, which is to be read in connection with the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention. In the drawings, like reference numerals are used to indicate like elements. The drawings in the following description are directed to some, but not all embodiments of the invention. For a person skilled in the art, other figures can be derived from these figures without inventive effort.

Fig. 1 schematically shows a structural view of an embodiment of a mold having a venting function of the present invention;

FIG. 2 schematically illustrates a structural view of an embodiment of the venting insert of the present invention;

fig. 3 schematically illustrates a structural view of another embodiment of the venting insert of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

Hereinafter, a mold having an exhausting function according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1(a) is a schematic structural view showing one embodiment of an upper portion of a mold having a degassing function according to the present invention,

fig. 1(b) shows a schematic structural view of a specific embodiment of the bottom of the mold with a degassing function of the present invention.

As shown in figure 1, the invention provides a mould with exhaust function, a mould core insert is arranged in a mould 1, the mould core insert is composed of a plurality of exhaust inserts 2 which are arranged, the exhaust inserts 2 are spliced with each other, the exhaust inserts are flaky, the inserts are parallel to each other, one end of each exhaust insert 2 is communicated with the bottom surface of the mould 1, each exhaust insert is tightly jointed, each exhaust insert 2 is provided with a thimble position 3, a first exhaust groove 4 and a second exhaust groove 5, the end part of the first exhaust groove 4 is communicated with the thimble position 3, the first exhaust groove 4 is communicated with the second exhaust groove 5, one end of the second exhaust groove 5 is communicated with the bottom surface of the mould 1, the invention can be used as a universal insert exhaust structure by making a mould part with a deeper cavity or a bad exhaust part into a special mould core insert structure, thereby solving the problem of difficult exhaust of a deep cavity part in a die-casting mould, thereby achieving the purpose of good product forming.

Figure 2 shows a schematic diagram of one embodiment of the venting insert of the present invention.

As shown in fig. 2, the exhaust insert 2 is provided with a thimble position 3, a first exhaust groove 4 and a second exhaust groove 5, one end of the exhaust insert 2 communicated with the bottom surface of the mold 1 is further provided with a third exhaust groove 6, the third exhaust groove 6 is communicated with the thimble position 3, and the thimble position is used for placing a thimble.

Specifically, the third exhaust groove 6 also communicates with the second exhaust groove 5.

With reference to the structure shown in fig. 2, the air exhausting principle of the mold with the air exhausting function of the present invention is as follows:

when high-temperature, high-pressure and high-speed molten aluminum enters a mold cavity through a mold runner, the whole mold cavity can be filled within a very short time (0.05S-0.20S), the high-temperature molten aluminum pushes gas in the mold cavity to enter a first exhaust groove 4, an ejector pin position 3, a second exhaust groove 5 and a third exhaust groove 6 from the upper part of an exhaust insert 2 in sequence and be smoothly exhausted to the outside atmosphere under high-temperature and high-pressure, and the high-temperature molten aluminum is solidified and formed into a casting within a very short time under high pressure, so that the problem that the gas in the mold cavity of a die-casting mold is not easily pushed out of the mold cavity by the high-temperature, high-speed and high-pressure molten aluminum is solved, and the finished product rate and the product quality of product molding are improved.

In order to enable the assembly process of the mold core insert to be simpler and the exhaust insert to be conveniently and fixedly installed, the exhaust insert 2 further comprises an insert hanging table 7, the insert hanging table 7 is arranged on two sides of one end of the exhaust insert 2, and the insert hanging table 7 is used for positioning the exhaust insert 2 and the mold 1 in the Z-axis direction.

Fig. 3 shows a schematic view of another embodiment of the vented insert of the present invention.

As shown in fig. 3, the exhaust insert 2 further includes an X-axis positioning portion 8 and a Y-axis positioning portion 9, where the X-axis positioning portion 8 is used for positioning the exhaust insert 2 and the mold 1 in the X direction; the Y-axis positioning part 9 is used for positioning the exhaust insert 2 and the mold 1 in the Y direction, and the exhaust insert is convenient to fixedly mount in the X-axis direction and the Y-axis direction during assembly.

The exhaust insert 2 is provided with an inlaying identification code 10, which can facilitate the processing and installation of the exhaust insert.

The mold with the exhaust function has the advantages that:

5. the assembly is simple, and the processing cost is low.

The above-described aspects may be implemented individually or in various combinations, and such variations are within the scope of the present invention.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Finally, it should be noted that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The mold with the exhaust function is characterized in that the mold core insert is arranged in the mold (1) and comprises a plurality of exhaust inserts (2) which are arranged well, one end of each exhaust insert (2) is communicated with the bottom surface of the mold (1), each exhaust insert (2) is provided with a thimble position (3), a first exhaust groove (4) and a second exhaust groove (5), the end part of each first exhaust groove (4) is communicated with the thimble position (3), each first exhaust groove (4) is communicated with the corresponding second exhaust groove (5), and one end of each second exhaust groove (5) is communicated with the bottom surface of the mold (1).

2. The mold according to claim 1, characterized in that the end of the venting insert (2) communicating with the bottom surface of the mold (1) is further provided with a third venting groove (6), the third venting groove (6) communicating with the needle-point (3).

3. Mould according to claim 2, characterised in that said third venting groove (6) is also in communication with said second venting groove (5).

4. The mold according to claim 1, wherein the vented insert (2) further comprises an insert mount (7), the insert mount (7) being provided on both sides of one end of the vented insert (2), the insert mount (7) being for positioning the vented insert (2) in the Z-axis direction with the mold (1).

5. The mold according to claim 1, characterized in that the gas exhaust insert (2) further comprises an X-axis positioning portion (8) and a Y-axis positioning portion (9), the X-axis positioning portion (8) being for positioning the gas exhaust insert (2) with the mold (1) in the X direction; the Y-axis positioning part (9) is used for positioning the exhaust insert (2) and the mold (1) in the Y direction.

6. Mould according to any one of claims 1 to 5, characterized in that the degassing insert (2) is provided with an inlay identification code (10).