Cooling device of cylinder barrel mold

Abstract

A cooling device of a cylinder barrel mold comprises a gas distribution disc used for being placed in an inner cavity of the cylinder barrel mold, the gas distribution disc comprises an upper gas distribution disc body and a lower gas distribution disc body, the upper gas distribution disc body and the lower gas distribution disc body are connected and fixed through a double-thread screw, and the interior of the upper gas distribution disc body and the interior of the lower gas distribution disc body are each of a cavity structure. A plurality of radially arranged gas orifices are uniformly distributed on the outer circumference; and the upper gas distribution disc and the lower gas distribution disc are connected with a gas charging device through gas pipes.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of mould cooling, specifically relates to a cooling device of cylinder mould. BACKGROUND

[0002] Referring to Figures 5 to 7 , the cooling device of cylinder mould in prior art is cylindrical, the upper half section of the cooling device is provided with helical grooves along the axial direction, and two channels are arranged on the bottom surface, one of the channels is communicated with the helical grooves through the upper surface of the cooling device, and the other channel is arranged on the bottom of the cylindrical side surface and communicated with the helical grooves, cooling medium is poured into any one of the channels, and the other channel flows out the cooling medium, so that the cylinder mould is cooled from bottom to top or from top to bottom, and the casting on the outer surface of the cylinder mould is sequentially solidified. However, in the process of cooling and solidification of the casting, some areas need to be rapidly cooled and solidified, and some areas need to be slowly cooled and solidified, when the cooling device is used to cool the corresponding position of the cylinder mould, the temperature of the cooling medium in the helical grooves is inconsistent, for example, when the cooling is performed from top to bottom, the temperature of the cooling medium at the upper end of the helical grooves is lower than that of the cooling medium at the lower end of the helical grooves, it is difficult to ensure precise cooling control of the local cylinder mould, the areas that need to be slowly cooled and solidified are easily cooled too fast, resulting in shrinkage defects of the casting, or the areas that need to be rapidly cooled and solidified are cooled too slowly, resulting in difficulty in forming the casting, and the cooling effect is not ideal. SUMMARY

[0003] In view of the above problems, the utility model provides a cooling device of cylinder mould, which can precisely control the cooling of the cylinder mould, ensure normal solidification and forming of the casting, and has better cooling effect.

[0004] The technical scheme of the utility model provides a cooling device of cylinder mould, which comprises a gas distribution disc for being placed in the inner cavity of the cylinder mould, the gas distribution disc comprises an upper gas distribution disc and a lower gas distribution disc, the upper and lower gas distribution discs are fixedly connected through a double-end screw rod, the interiors of the upper and lower gas distribution discs are cavity structures, a plurality of radially arranged air injection holes are uniformly distributed on the outer circumferences of the upper and lower gas distribution discs, and the upper and lower gas distribution discs are connected with a gas charging device through gas pipes.

[0005] Preferably, a plurality of radially extending bosses are uniformly distributed on the outer circumferences of the upper and lower gas distribution discs.

[0006] Preferably, an axially through gas pipe accommodation hole is arranged in the middle part of each of the upper and lower gas distribution discs, a gas pipe connecting port is arranged on the side wall of each gas pipe accommodation hole, and each gas pipe connecting port is connected with the gas charging device through a gas pipe.

[0007] Preferably, the gas distribution disc is provided with screw holes on both sides of the gas pipe positioning hole, the screw holes of the upper and lower gas distribution discs correspond in position, the two ends of the double-headed screw rod are respectively threaded through the screw holes of the upper and lower gas distribution discs and are threadedly connected with the nuts to fixedly connect the upper and lower gas distribution discs.

[0008] Preferably, the middle section of the double-headed screw rod is a large-diameter section for supporting and limiting, and the two ends are small-diameter sections provided with threads for cooperating with the nuts to fix the upper and lower gas distribution discs.

[0009] Preferably, the upper and lower gas distribution discs have the same radius and are smaller than the radius of the inner cavity of the cylinder die.

[0010] Preferably, the upper and lower gas distribution discs are each composed of symmetrical upper and lower halves.

[0011] The upper and lower gas distribution discs are uniformly provided with air injection holes on the outer circumferential surface, the local part of the inner cavity of the cylinder die is precisely cooled through the air injection holes, and the time, airflow velocity and other parameters of the air injection cooling of the inner cavity of the cylinder die by the upper and lower gas distribution discs are controlled through the air charging device, so that the normal solidification of each part of the casting is ensured and the casting is prevented from being scrapped. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structural schematic view of the utility model;

[0013] Figure 2 It is a structural schematic view of the gas distribution disc of the utility model;

[0014] Figure 3 It is a schematic view of the gas flow direction of the utility model;

[0015] Figure 4 It is a structural schematic view of the utility model assembled in the inner part of the cylinder die;

[0016] Figure 5 It is a structural schematic view of the cylinder die;

[0017] Figure 6 It is a structural schematic view of the cooling device of the prior art;

[0018] Figure 7 It is a structural schematic view of the cooling device of the prior art assembled in the inner part of the cylinder die. DETAILED DESCRIPTION

[0019] Referring to Figures 1 to 3The application discloses a cooling device for a cylinder mold, which comprises a gas distribution plate 1 for being put into the inner cavity of the cylinder mold 5, wherein the gas distribution plate 1 comprises an upper gas distribution plate and a lower gas distribution plate, and the upper and lower gas distribution plates are both composed of symmetrical upper and lower halves, and are simple in structure and convenient to process and install. The middle part of each of the upper and lower gas distribution plates is provided with an axially-through gas pipe accommodating hole 13, and the side wall of each gas pipe accommodating hole 13 is provided with a gas pipe connecting port 14, and each gas pipe connecting port 14 is connected with the inflation device through a gas pipe 3. The gas pipe accommodating hole 13 of the upper and lower gas distribution plates is provided with screw holes 15 on both sides of the hole, the positions of the screw holes 15 of the upper and lower gas distribution plates are corresponding, the middle section of a double-end screw rod 2 is a large-diameter section 21, which is used for supporting and limiting the upper and lower gas distribution plates, and the two ends of the double-end screw rod 2 are small-diameter sections, which are provided with threads, and the two ends of the double-end screw rod 2 are respectively threaded through the screw holes 15 of the upper and lower gas distribution plates and are screwed with nuts 4, so as to fixedly connect the upper and lower gas distribution plates. The inner part of each of the upper and lower gas distribution plates is a cavity structure, and a plurality of radially-arranged gas injection holes 11 are uniformly distributed on the outer periphery, eight gas injection holes 11 are arranged in the embodiment, a plurality of radially-extending bosses 12 are uniformly distributed on the outer periphery of the upper and lower gas distribution plates, four bosses 12 are arranged in the embodiment, the four bosses are arranged at intervals of the gas injection holes 11, so as to prevent the gap between the gas injection holes 11 and the inner wall of the cylinder mold 5 from being too small and the cooling effect from being affected, and the bosses 12 are abutted against the inner wall of the cylinder mold 5, so as to prevent the device from shaking in the gas injection cooling process and affecting the cooling effect. The radii of the upper and lower gas distribution plates are the same and are slightly smaller than the radius of the inner cavity of the cylinder mold 5, so as to prevent the gap between the radially-arranged gas injection holes 11 on the outer periphery of the upper and lower gas distribution plates and the inner wall of the cylinder mold 5 from being too small and the cooling effect from being affected.

[0020] See Figure 4The use process of the utility model is that first, the cylinder barrel mold 5 is used to pour the casting, the mold is tested, after molding, the test mold casting is taken down for analysis, according to the analysis result, the installation position of the device is determined, then the cylinder barrel mold 5 is detached from the mold mechanism, according to the installation position of the device, the double-end screw rod 2 with appropriate length and the support rod 6 with appropriate length are selected, after the upper and lower gas distribution plates of the device are assembled, they are put into the inner cavity of the cylinder barrel mold 5, the device is assembled to the installation position through the support rod 6 and the mold pressing plate 7, then the cylinder barrel mold 5 is installed on the mold mechanism through the mold pressing plate 7, the air pipes 3 of the upper and lower gas distribution plates are connected with the inflation device on the mold mechanism through the accommodation holes on the mold pressing plate 7, finally, the cylinder barrel mold 5 is used to pour the casting, during the cooling and solidification process of the casting, the inflation device is started and according to the cooling and solidification requirement of each part of the casting, the inflation time, the gas flow rate and other parameters of the upper and lower gas distribution plates are set, then the upper and lower gas distribution plates are inflated at the same time, the corresponding positions on the inner wall of the cylinder barrel mold 5 are cooled through the air injection holes 11 on the outer circumferences of the upper and lower gas distribution plates, the normal solidification of each part of the casting is ensured, and the casting is avoided from being scrapped.

[0021] In the utility model, different double-end screw rods 2 and support rods 6 with different lengths can be selected according to the cooling and solidification requirement of the casting, the normal solidification of each part of the casting is ensured, and the casting is avoided from being scrapped.

[0022] The above only describes the preferred embodiments of the utility model, and is not used for limiting the utility model, and the changes made by the person skilled in the art to the utility model without departing from the spirit of the utility model all fall within the protection scope of the utility model.

Claims

1. A cooling device for a cylinder mold, characterized by: The application relates to a gas distribution disc (1) for being put into the inner cavity of a cylinder mould (5), wherein the gas distribution disc (1) comprises an upper gas distribution disc and a lower gas distribution disc, the upper and lower gas distribution discs are fixedly connected through a double-end screw rod (2), the inner part of each of the upper and lower gas distribution discs is a cavity structure, a plurality of radially arranged air injection holes (11) are uniformly distributed on the outer periphery of each of the upper and lower gas distribution discs, and each of the upper and lower gas distribution discs is connected with an air charging device through an air pipe (3).

2. A cooling device for a cylinder mold according to claim 1, characterized in that: The outer periphery of each of the upper and lower gas distribution discs is uniformly provided with a plurality of radially extending bosses (12).

3. A cooling device for a cylinder mold according to claim 1, characterized in that: The middle part of each of the upper and lower gas distribution discs is provided with an axially penetrating air pipe accommodating hole (13), the side wall of each air pipe accommodating hole (13) is provided with an air pipe connecting port (14), and each air pipe connecting port (14) is connected with the air charging device through the air pipe (3).

4. A cooling arrangement for a cylinder barrel mould as claimed in claim 3, characterised in that: The air pipe accommodating hole (13) of each of the upper and lower gas distribution discs is provided with screw holes (15) on both sides of the hole mouth, the screw holes (15) of the upper and lower gas distribution discs are in correspondence, the two ends of the double-end screw rod (2) respectively pass through the screw holes (15) of the upper and lower gas distribution discs and are threadedly connected with nuts (4) to fixedly connect the upper and lower gas distribution discs.

5. A cooling device for a cylinder liner according to claim 1 or 4, characterized in that: The middle section of the double-end screw rod (2) is a large-diameter section (21) for supporting and limiting, and the two ends are small-diameter sections provided with threads for being matched with the nuts (4) to fixedly connect the upper and lower gas distribution discs.

6. A cooling device for a cylinder mold according to claim 1, characterized in that: The upper and lower gas distribution discs have the same radius and are smaller than the inner cavity radius of the cylinder mould (5).

7. A cooling device for a cylinder mold according to claim 1, characterized in that: Each of the upper and lower gas distribution discs is composed of symmetrical upper and lower halves.

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