Brake disc casting mold capable of reducing casting choking defect

Abstract

The utility model provides a brake disc casting mould for reducing casting choking defect, which relates to the technical field of brake disc processing, and comprises a lower mould and an upper mould, the surface of the upper mould is provided with a casting gate and a plurality of air outlets, one side of the surface of the lower mould is provided with an auxiliary device, and the auxiliary device is provided with a plurality of air outlets. The auxiliary device discharges air in a cavity of a pouring mold through a fan and an air collecting cover, the auxiliary device comprises the fan, the fan is installed on one side of the surface of a lower mold, a connecting pipe is installed at the input end of the fan, and a conveying pipe is arranged on the inner wall of the connecting pipe in a sliding mode. In the using process of the brake disc pouring mold, air in the brake disc pouring mold can be better exhausted as much as possible, so that molten metal is not prone to reacting with the air, the choking defect of brake disc casting is reduced, and the using effect of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of brake disc processing technology, and in particular to a brake disc casting mold that reduces casting defects such as backfiring. Background Technology

[0002] Brake disc casting molds are used to produce brake discs. Their main function is to provide a fixed, high-temperature resistant space in which molten metal cools and solidifies, forming the final shape of the brake disc.

[0003] During the production and casting of brake discs, a sand core is placed into the mold beforehand, and then the upper and lower molds are brought into contact and joined together. Finally, molten metal is poured in through the casting port of the upper mold and left to cool and solidify. However, in actual use, it has been found that when the molten metal is poured into the mold cavity, it is difficult to expel the air in the cavity. This causes the molten metal to react with the air components in the cavity, resulting in a fire and affecting the quality of the brake disc molding. Utility Model Content

[0004] The technical problem this invention aims to solve is that when molten metal is poured into the mold cavity, it is difficult to expel the air from the cavity, causing the molten metal to react with the air components in the cavity, resulting in a fire and affecting the quality of the brake disc molding.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a brake disc casting mold for reducing casting defects, including a lower mold and an upper mold. The upper mold has a casting port and several exhaust ports on its surface. An auxiliary device is provided on one side of the surface of the lower mold. The auxiliary device uses a fan and an air collector to exhaust the air in the mold cavity.

[0006] The effect achieved by the above components is as follows: when the brake disc is being cast and processed, the sand core is first placed into the inner wall of the lower mold, then the upper mold is placed on the surface of the lower mold, and then the auxiliary device is activated to pour molten metal into the pouring port on the surface of the upper mold, while waiting for the brake disc to be formed.

[0007] Preferably, the auxiliary device includes a fan, wherein the fan is installed on one side of the surface of the lower mold, a connecting pipe is installed at the input end of the fan, a conveying pipe is slidably arranged on the inner wall of the connecting pipe, and an electric telescopic rod is arranged on the arc surface of the connecting pipe. The input end and output end of the electric telescopic rod are respectively connected to the connecting pipe and the conveying pipe, and a wind collector is installed at one end of the connecting pipe.

[0008] The effect achieved by the above components is that, during the use of the brake disc casting mold, the internal air can be better discharged as much as possible, so that the molten metal is less likely to react with the air, reducing the scorching defects in brake disc casting and improving the performance of the device.

[0009] Preferably, the auxiliary device further includes a mounting rod installed on the inner wall of the air collecting hood, wherein a plurality of reinforcing tubes aligned with the exhaust ports on the surface of the upper mold are fixedly mounted on the surface of the mounting rod.

[0010] The effect achieved by the above components is that, by setting up the reinforcing pipe, the fan can be better aligned with the exhaust port on the surface of the upper mold when it forms a negative pressure airflow, thereby more efficiently venting the air inside the cavity.

[0011] Preferably, the auxiliary device includes a reinforcing ring installed and fixed at one end of the conveying pipe, wherein the reinforcing ring is sleeved on the arc surface of the connecting pipe.

[0012] The effect achieved by the above components is as follows: by setting the reinforcing ring made of silicone rubber, the connecting pipe and the conveying pipe are guaranteed to have good sealing performance, thereby ensuring stable airflow and drainage when the fan generates airflow.

[0013] Preferably, the auxiliary device further includes a protective sleeve installed at the input end of the electric telescopic pole, wherein the protective sleeve protects the connection of the electric telescopic pole.

[0014] The effect achieved by the above-mentioned components is that, through the protective sleeve made of graphite material, it is not easy for impurities from the processing environment to be brought into the interior of the electric telescopic rod during operation, thus ensuring the normal use of the components.

[0015] Preferably, the surfaces of the lower mold and the upper mold are jointly provided with a stabilizing device, wherein the stabilizing device includes two fixed frames, and the two fixed frames are connected to the surface of the lower mold. The surface of the upper mold is fixed with two clamping plates, wherein the two clamping plates are respectively clamped to the inner walls of the two fixed frames, and the clamping plates are fixed to the fixed frames by bolts.

[0016] The effect achieved by the above components is that the connection between the upper and lower molds is more stable, less prone to abnormal shaking, ensuring stable molding of molten metal inside the cavity, and improving the molding effect of the brake disc.

[0017] Preferably, the stabilizing device further includes a knob mounted on the surface of the bolt, wherein the knob assists in the rotation of the bolt for use.

[0018] The effect achieved by the above components is that the knob makes it easier and faster to turn the bolt during use, thereby making the connection and separation of the card plate and the fixed frame faster.

[0019] Preferably, the stabilizing device further includes a connecting rope mounted on the surface of the card plate, wherein the other end of the connecting rope is connected to a bolt.

[0020] The effect achieved by the above components is that the connecting rope makes the bolts easier to remove during use, thereby better connecting and fixing the mold components.

[0021] The beneficial effects of this utility model are:

[0022] The brake disc casting mold of this invention can better expel internal air during use, thereby making it less likely for the molten metal to react with air, reducing the scorching defects in brake disc casting, and improving the performance of the device. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the auxiliary device of this utility model;

[0026] Figure 3 This is a utility model Figure 2 A schematic diagram of the side structure;

[0027] Figure 4 This is a schematic diagram of the stabilizing device of this utility model.

[0028] Legend: 1. Lower mold; 2. Upper mold; 3. Casting gate; 4. Air vent; 5. Auxiliary device; 51. Exhaust fan; 52. Connecting pipe; 53. Conveying pipe; 54. Air collector hood; 55. Electric telescopic rod; 56. Protective sleeve; 57. Reinforcing ring; 58. Mounting rod; 59. Reinforcing pipe; 6. Stabilizing device; 61. Fixing frame; 62. Clamping plate; 63. Bolt; 64. Knob; 65. Connecting rope. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Figure 1 and Figure 2 The brake disc casting mold shown includes a lower mold 1 and an upper mold 2. The upper mold 2 has a casting port 3 and several exhaust ports 4 on its surface. An auxiliary device 5 is provided on one side of the surface of the lower mold 1. The auxiliary device 5 uses a fan 51 and an air collector 54 to exhaust the air in the mold cavity. A stabilizing device 6 is provided on the surfaces of the lower mold 1 and the upper mold 2.

[0032] Figure 1 , Figure 2 and Figure 3 The auxiliary device 5 shown includes a blower 51, which is installed on one side of the surface of the lower mold 1. A connecting pipe 52 is installed at the input end of the blower 51, and a conveying pipe 53 is slidably arranged on the inner wall of the connecting pipe 52. An electric telescopic rod 55 is arranged on the arc surface of the connecting pipe 52. The input and output ends of the electric telescopic rod 55 are connected to the connecting pipe 52 and the conveying pipe 53, respectively. A wind collector hood 54 is installed at one end of the connecting pipe 52. When the brake disc is being cast and processed, the sand core is first placed into the inner wall of the lower mold 1, then the upper mold 2 is placed on the surface of the lower mold 1, and then molten metal is poured into the pouring port on the surface of the upper mold 2. At the same time, the blower is activated. The electric telescopic rod 55 on the surface of the connecting pipe 52 will retract during operation, thereby driving the conveying pipe 53 to slide on the inner wall of the connecting pipe 52, causing the air collecting hood 54 to move closer to the surface of the mold 2 until the air collecting hood 54 is moved to a position close to the exhaust port 4. At the same time, the fan 51 is started. At this time, the fan 51 generates negative pressure airflow, thereby sucking in and removing the air inside the cavity, and waiting for the brake disc to be formed. During the use of the brake disc casting mold, the internal air can be better discharged as much as possible, so that the molten metal is less likely to react with the air, reducing the scorching defects in the casting of the brake disc and improving the use effect of the device.

[0033] Figure 1 , Figure 2 and Figure 3The auxiliary device 5 shown also includes a mounting rod 58 installed on the inner wall of the air collecting hood 54. Several reinforcing tubes 59 are fixedly mounted on the surface of the mounting rod 58, aligned with the exhaust ports 4 on the surface of the upper mold 2. The reinforcing tubes 59 allow the fan 51 to better align with the exhaust ports 4 on the surface of the upper mold 2 when a negative pressure airflow is generated, thus more efficiently venting air from the cavity. The auxiliary device 5 also includes a reinforcing ring 57 fixed to one end of the conveying pipe 53. The reinforcing ring 57 is fitted onto the arc surface of the connecting pipe 52, allowing air to pass through... The reinforcing ring 57 made of silicone rubber ensures good sealing between the connecting pipe 52 and the conveying pipe 53, thereby ensuring stable airflow and drainage when the fan 51 generates airflow. The auxiliary device 5 also includes a protective sleeve 56 installed at the input end of the electric telescopic rod 55. The protective sleeve 56 protects the connection of the electric telescopic rod 55. The protective sleeve 56 made of graphite material prevents impurities from the processing environment from entering the electric telescopic rod 55 during operation, ensuring the normal use of the components.

[0034] Figure 1 and Figure 4 The stabilizing device 6 shown includes two fixed frames 61, which are connected to the surface of the lower mold 1. Two clamping plates 62 are fixedly installed on the surface of the upper mold 2. The two clamping plates 62 are respectively clamped to the inner walls of the two fixed frames 61, and the clamping plates 62 are fixed to the fixed frames 61 by bolts 63. When the upper mold 2 is placed on the surface of the lower mold 1, the clamping plates 62 fixedly connected to the surface of the upper mold 2 will be inserted into the inner wall of the fixed frames 61 fixedly connected to the surface of the lower mold 1. Then the bolts 63 penetrate the surface of the clamping plates 62 and are threadedly connected to the inner wall of the fixed frames 61. At this time, the connection between the upper mold 2 and the lower mold 1 will be more stable and less prone to abnormal shaking, ensuring the stable forming of molten metal inside the cavity and improving the forming effect of the brake disc.

[0035] Figure 1 and Figure 4 The stabilizing device 6 shown also includes a knob 64 mounted on the surface of the bolt 63. The knob 64 assists in the rotation of the bolt 63. The setting of the knob 64 makes it easier and faster to rotate the bolt 63 during use, thereby making the connection and separation of the clamping plate 62 and the fixing frame 61 faster. The stabilizing device 6 also includes a connecting rope 65 mounted on the surface of the clamping plate 62. The other end of the connecting rope 65 is connected to the bolt 63. The setting of the connecting rope 65 makes it easier to pick up the bolt 63 during use, thereby better connecting and fixing the mold components.

[0036] Working principle: When the brake disc is being cast, the sand core is first placed into the inner wall of the lower mold 1, and then the upper mold 2 is placed on the surface of the lower mold 1. Molten metal is then poured into the pouring port on the surface of the upper mold 2. At the same time, the electric telescopic rod 55 on the surface of the connecting pipe 52 is activated. The electric telescopic rod 55 will retract, thereby driving the conveying pipe 53 to slide on the inner wall of the connecting pipe 52, so that the air collecting hood 54 moves closer to the surface of the upper mold 2 until the air collecting hood 54 is moved to a position close to the exhaust port 4. At the same time, the blower 51 (model V-HT) is activated. At this time, the blower 51 generates negative pressure airflow, thereby sucking in and removing the air inside the cavity, and waiting for the brake disc to be formed. During the use of the brake disc casting mold, the internal air can be better discharged as much as possible, so that the molten metal is less likely to react with the air, reducing the scorching defects in the casting of the brake disc and improving the use effect of the device.

[0037] When the upper mold 2 is placed on the surface of the lower mold 1, the clamping plate 62 fixedly connected to the surface of the upper mold 2 will be inserted into the inner wall of the fixing frame 61 fixedly connected to the surface of the lower mold 1. Then, the bolt 63 passes through the surface of the clamping plate 62 and is threadedly connected to the inner wall of the fixing frame 61. At this time, the connection between the upper mold 2 and the lower mold 1 will be more stable and less prone to abnormal shaking, ensuring the stable forming of molten metal inside the cavity and improving the forming effect of the brake disc.

[0038] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A brake disc casting mold for reducing the seizure defect of a cast brake disc, comprising a lower mold (1) and an upper mold (2), characterized in that: The upper mold (2) has a casting port (3) and several exhaust ports (4) on its surface. An auxiliary device (5) is provided on one side of the surface of the lower mold (1). The auxiliary device (5) uses a fan (51) and an air collector (54) to exhaust the air in the mold cavity.

2. The brake rotor casting mold for reducing the flash defect according to claim 1, wherein: The auxiliary device (5) includes a fan (51), wherein the fan (51) is installed on one side of the surface of the lower mold (1), and a connecting pipe (52) is installed at the input end of the fan (51). A conveying pipe (53) is slidably arranged on the inner wall of the connecting pipe (52), and an electric telescopic rod (55) is arranged on the arc surface of the connecting pipe (52). The input end and the output end of the electric telescopic rod (55) are respectively connected to the connecting pipe (52) and the conveying pipe (53). A wind collector hood (54) is installed at one end of the connecting pipe (52).

3. A brake disc casting mold for reducing the seizure defect of a cast brake disc according to claim 2, characterized in that: The auxiliary device (5) also includes an installation rod (58) installed on the inner wall of the air collecting hood (54), wherein several reinforcing tubes (59) are fixedly installed on the surface of the installation rod (58) and aligned with the exhaust port (4) on the surface of the upper mold (2).

4. The brake rotor casting mold of claim 2, wherein: The auxiliary device (5) includes a reinforcing ring (57) installed and fixed at one end of the conveying pipe (53), wherein the reinforcing ring (57) is sleeved on the arc surface of the connecting pipe (52).

5. The brake rotor casting mold of claim 2 wherein: The auxiliary device (5) also includes a protective sleeve (56) installed at the input end of the electric telescopic pole (55), wherein the protective sleeve (56) protects the connection of the electric telescopic pole (55).

6. The brake rotor casting mold of claim 1 wherein: The surfaces of the lower mold (1) and the upper mold (2) are jointly provided with a stabilizing device (6), wherein the stabilizing device (6) includes two fixed frames (61), and the two fixed frames (61) are connected to the surface of the lower mold (1). The surface of the upper mold (2) is fixed with two clamping plates (62), wherein the two clamping plates (62) are respectively clamped to the inner walls of the two fixed frames (61), and the clamping plates (62) and the fixed frames (61) are fixed by bolts (63).

7. A brake disc casting mold for reducing casting backfire defects according to claim 6, characterized in that: The stabilizing device (6) also includes a knob (64) mounted on the surface of the bolt (63), wherein the knob (64) assists in the rotation of the bolt (63).

8. The brake rotor casting mold of claim 6, wherein: The stabilizing device (6) also includes a connecting rope (65) mounted on the surface of the card plate (62), wherein the other end of the connecting rope (65) is connected to a bolt (63).

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