Mold core and cooling mold

Abstract

The utility model discloses a mold core and a cooling mold, the mold core comprises a mold core main body, a water channel, an air guide groove, an air channel and an air inlet, the water channel is arranged on the mold core main body and is positioned on one side of a molding surface of the mold core main body; the air guide groove is formed in the forming face of the mold core body, the air inlet is formed in the non-forming face of the mold core body, and the air guide groove is communicated with the air inlet through an air channel. According to the mold core and the mold, the water channel is formed in the mold core main body, basic cooling of the mold core main body can be achieved through the water channel during production, the air guide groove is formed in the forming face of the mold core main body, and cooling gas is supplied to the air guide groove through the air inlet in the non-forming face of the mold core main body, so that the cooling gas can cover the surface of a part during machining; and cooling of the part and the mold is accelerated, the part cooling speed is effectively increased, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of moulding and cooling mould, belong to mould technical field. BACKGROUND

[0002] With the continuous application of new materials in automobile, and the continuous introduction of advanced design concept to meet the market demand for lightweight and high safety performance automobile, manufacturing process also needs to be constantly innovated. Using high-strength steel sheet stamping parts to manufacture vehicle body is an important way to realize lightweight and improve collision safety. At present, 1300-1500Mpa super high strength parts are generally used in automobile body safety parts. When the strength of steel sheet reaches 1500Mpa, the conventional cold stamping forming process is almost impossible to form. However, the use of hot forming technology can well solve the problem of super high strength forming.

[0003] 22MnB5 is a common forming steel, and its microstructure before hot stamping is pearlite + ferrite, with a tensile strength of 600Mpa. After hot stamping, the microstructure is martensite, with a tensile strength of 1500Mpa. In hot forming production, the process is generally as follows: the plate is uniformly heated from room temperature to 930-950℃, then it is sent into the mold for stamping, the press is closed for pressure holding and quenching, and then the press is opened for part demolding. During production, the forming steel block is attached through the stamping process. Since the plate is heated at high temperature, the heat in the plate is transferred to the forming steel block, and then the heat is carried away by the internal cooling water flow. Since the part needs to be cooled rapidly to below 200℃ to complete the transformation of austenite to martensite, the indirect cooling rate using internal waterway is limited by the influence of the type surface ratio, holding pressure and waterway distance. The holding time is generally about 8-20S. Due to the irregular shape of the part, the waterway can only be machined as a straight hole due to the limitation of machine tool manufacturing. The waterway cannot be bent with the type, causing the distance of some areas from the waterway to be too far, resulting in hot spot areas of the part, greatly limiting the production rhythm and affecting the production efficiency.

[0004] Therefore, to improve the cooling rate of the part and improve the production efficiency, a moulding cooling mould is needed. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at overcoming the defects in the prior art, and provides a moulding and cooling mould. Waterways are formed in the moulding main body to achieve basic cooling of the moulding main body during production. Air guide grooves are formed on the forming surface of the moulding main body, and cooling gas is supplied to the air guide grooves through the air inlet on the non-forming surface of the moulding main body. The cooling gas can cover the surface of the part during processing, accelerating the cooling of the part and the mould, effectively improving the cooling rate of the part and improving the production efficiency.

[0006] In order to achieve the above-mentioned purpose, in order to solve the above-mentioned technical problems, the utility model is with the following technical scheme realizes:

[0007] Firstly, the utility model provides a kind of mould, including mould main body, water channel, air guide groove, air channel and air inlet, wherein,

[0008] The water channel is opened in mould main body, and is located the one side of forming surface of mould main body;

[0009] The air guide groove is opened in the forming surface of mould main body, the air inlet is opened in the non-forming surface of mould main body, and the air guide groove is communicated with air inlet by air channel.

[0010] Further, the water channel is provided with several, and several water channels are evenly distributed on the one side of forming surface of mould main body.

[0011] Further, the air guide groove is provided with several, and several air guide grooves are distributed on the one side of forming surface of mould main body away from the bottom surface of mould main body.

[0012] Further, it further includes through slot, the through slot is opened in mould main body, one side of the through slot is communicated with several air guide grooves, and the other side of the through slot is communicated with air channel.

[0013] Further, the air guide groove is spaced apart from water channel.

[0014] Secondly, the utility model provides a kind of mould, including the mould of first aspect described.

[0015] Further, it further includes first air pipe, cooling assembly and press air source adapter, one end of the first air pipe is communicated with air inlet by cooling assembly, the other end of the first air pipe is communicated with press air source adapter, and press air source adapter is opened with press air source interface.

[0016] Further, the cooling assembly includes second air pipe and jet cooling device, wherein,

[0017] One end of the second air pipe is communicated with air inlet, the other end of the second air pipe is communicated with the air outlet of jet cooling device, and the air inlet of jet cooling device is communicated with first air pipe.

[0018] Compared with prior art, the utility model reaches the beneficial effects:

[0019] The moulding core provided by the utility model can realize basic cooling of the moulding core body through the water channel during production, and the air guide groove is arranged on the forming surface of the moulding core body, and the air guide groove is supplied with cooling gas through the air inlet on the non-forming surface of the moulding core body, so that the cooling gas can cover the surface of the part during processing, the cooling of the part and the mould is accelerated, the part cooling rate is effectively improved, and the production efficiency is improved.

[0020] The cooling mould provided by the utility model can accelerate the cooling of the part and the mould during processing and production, effectively improve the part cooling rate, and improve the production efficiency by adapting the above moulding core. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the structural schematic view of the moulding core provided by the utility model;

[0022] Figure 2 is the structural schematic view of the moulding core body connected with the air source.

[0023] In the figure: 1, moulding core body; 2, water channel; 3, air guide groove; 4, air channel; 5, air inlet; 6, first air pipe; 7, press air source adapter; 8, press air source interface; 9, second air pipe; 10, air jet cooler. DETAILED DESCRIPTION

[0024] The utility model will be further described below in combination with the drawings. The following examples are only used to more clearly illustrate the technical scheme of the utility model, and cannot limit the protection scope of the utility model.

[0025] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0026] In the description of the utility model, it is necessary to explain that, unless there are definite provisions and limitations, the terms "mount", "connect", "connect" should be understood broadly, for example, it can be fixed connection, also can be detachable connection, or integrally connected, it can be mechanical connection, also can be electrical connection, it can be directly connected, also can be indirectly connected through intermediate medium, it can be the communication inside two elements, for ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances. Embodiment one

[0027] As Figure 1 Indicated, the utility model provides a kind of moulding core, including moulding core main body 1, water channel 2, gas guide groove 3, air passage 4 and air inlet 5, wherein,

[0028] The water channel 2 is opened in the moulding core main body 1, and is located on the forming surface side of the moulding core main body 1;

[0029] The gas guide groove 3 is opened on the forming surface of the moulding core main body 1, the air inlet 5 is opened on the non-forming surface of the moulding core main body 1, and the gas guide groove 3 is communicated with the air inlet 5 by the air passage 4.

[0030] In the above technical solution, by opening water channel 2 on moulding core main body 1, the basic cooling of moulding core main body 1 can be realized by water channel 4 during production, and the gas guide groove 3 is opened on the forming surface of the moulding core main body 1, and the air inlet 5 is supplied to the gas guide groove 3 on the non-forming surface of the moulding core main body 1, so that the cooling gas can cover the surface of the part during processing, accelerate the cooling of the part and the mould, effectively improve the part cooling rate and improve the production efficiency. Embodiment two

[0031] As Figure 1 And Figure 2 Indicated, the utility model provides a kind of moulding core, and the difference between the moulding core provided by embodiment one is:

[0032] To ensure the cooling effect of water channel 2, in the embodiment, the water channel 2 is provided with a plurality of, and the plurality of water channels 2 are evenly distributed on the forming surface side of the moulding core main body 1.

[0033] To ensure the cooling effect of gas guide groove 3, in the embodiment, the gas guide groove 3 is provided with a plurality of, and the plurality of gas guide grooves 3 are distributed on the side of the forming surface of the moulding core main body 1 away from the bottom surface of the moulding core main body 1.

[0034] To realize the communication between the plurality of gas guide grooves 3 and the air passage 4, further comprising a through groove, the through groove is opened in the moulding core main body 1, one side of the through groove is communicated with the plurality of gas guide grooves 3, and the other side of the through groove is communicated with the air passage 4.

[0035] In order to avoid the interference between the air guide groove 3 and the water channel 2, the air guide groove 3 is arranged in a spaced manner with the water channel 2. Embodiment three

[0036] The embodiment provides a cooling mold, by adapting the mold core in the embodiment one, the cooling of the part and the mold can be accelerated during the machining production, the part cooling rate is effectively improved, and the production efficiency is improved.

[0037] As shown in Figure 2 In order to realize the supply of cooling gas, a first air pipe 6, a cooling assembly and a press air source adapter 7 are further included, one end of the first air pipe 6 is communicated with the air inlet 5 through the cooling assembly, the other end of the first air pipe 6 is communicated with the press air source adapter 7, and the press air source adapter 7 is provided with a press air source interface 8.

[0038] In order to realize the cooling of the compressed air by the cooling assembly, the cooling assembly includes a second air pipe 9 and a jet cooler 10, wherein,

[0039] One end of the second air pipe 9 is communicated with the air inlet 5, the other end of the second air pipe 9 is communicated with the air outlet of the jet cooler 10, and the air inlet 5 of the jet cooler 10 is communicated with the first air pipe 6.

[0040] The above only is the preferred embodiment of the present application, it should be pointed out, for ordinary skilled in the technical field, without departing from the technical principles of the present application, under the premise of, can make a number of improvements and deformation, these improvements and deformation also should be considered as the protection scope of the present application.

Claims

1. A mold core, characterized by, The utility model relates to a mold core body (1), water channel (2), gas guide groove (3), air channel (4) and air inlet (5), wherein, The water channel (2) is arranged on the mold core body (1) and located on the side of the forming surface of the mold core body (1); The gas guide groove (3) is arranged on the forming surface of the mold core body (1), the air inlet (5) is arranged on the non-forming surface of the mold core body (1), and the gas guide groove (3) and the air inlet (5) are communicated through the air channel (4).

2. The mold core of claim 1, wherein, The water channel (2) is provided with a plurality of water channels (2) which are evenly distributed on the side of the forming surface of the mold core body (1).

3. The mold core of claim 2, wherein, The gas guide groove (3) is provided with a plurality of gas guide grooves (3) which are distributed on the side of the forming surface of the mold core body (1) away from the bottom surface of the mold core body (1).

4. The mold core of claim 3, wherein, The utility model further comprises a through groove which is arranged in the mold core body (1), one side of the through groove is communicated with the plurality of gas guide grooves (3), and the other side of the through groove is communicated with the air channel (4).

5. The mold core of claim 4, wherein, The gas guide groove (3) is arranged at intervals with the water channel (2).

6. A cooling mold characterized by, The utility model further comprises the mold core body (1) of any one of claims 1-5.

7. The cooled mold of claim 6, wherein, The utility model further comprises a first air pipe (6), a cooling assembly and a press air source adapter (7), one end of the first air pipe (6) is communicated with the air inlet (5) through the cooling assembly, the other end of the first air pipe (6) is communicated with the press air source adapter (7), and the press air source adapter (7) is provided with a press air source interface (8).

8. The cooled mold of claim 7, wherein, The cooling assembly comprises a second air pipe (9) and a jet cooler (10), wherein, One end of the second air pipe (9) is communicated with the air inlet (5), the other end of the second air pipe (9) is communicated with the air outlet of the jet cooler (10), and the air inlet (5) of the jet cooler (10) is communicated with the first air pipe (6).

Images