Casting mold for producing engine cylinder block

Abstract

The utility model relates to the technical field of engine cylinder production, in particular to a casting mold for engine cylinder production, which comprises a bottom plate, a fixed mold, a support frame and power equipment, the fixed mold and the support frame are fixedly mounted on the upper surface of the bottom plate, and the power equipment is fixedly mounted on a transverse plate of the support frame. A movable mold is fixedly mounted at the output end of the power equipment, an exhaust groove is formed in the movable mold, a mounting groove is formed in the supporting frame, an end plate is fixedly mounted in the mounting groove, and an exhaust groove cleaning assembly is mounted on the end plate. The scraping plates adopt arc-shaped surface contact design and spiral arrangement, the molded surfaces of the outer walls of the scraping plates are attached to the inner wall of the exhaust groove, the low-position ends of the adjacent scraping plates are located below the high-position ends, a gapless spiral scraping surface is formed, and the inner wall of the exhaust groove can be subjected to global scraping, and stubborn attachments such as metal residues and oxide skin can be stripped.

Description

Technical Field

[0001] This utility model relates to the field of engine cylinder block manufacturing technology, specifically to a casting mold for engine cylinder block manufacturing. Background Technology

[0002] The engine block is the core load-bearing and basic structural component of an internal combustion engine. It provides the mounting and positioning reference, support carrier, and sealing space for core moving components such as cylinders, crankshafts, and camshafts. It also integrates functional structures such as cooling water passages, lubrication oil passages, and mounting flanges, and is the core load-bearing component for engine power output.

[0003] In the engine block casting process, the venting groove of the casting mold is a key structure to ensure the quality of the casting. Its main function is to expel the gas inside the cavity and avoid defects such as porosity and cold shuts when the molten metal is filled. However, in actual pouring operations, metal residues are prone to accumulate in the venting groove. On the one hand, during the high-pressure and high-speed filling process, some molten metal will seep into the venting groove due to airflow entrainment or pressure fluctuations. On the other hand, impurities such as oxide scale formed by the cooling of the front end of the molten metal and high-temperature residue of the release agent will also be pushed into the venting groove with the gas and adhere to the groove wall. If the process parameters are not set properly or the mold parting surface fails to fit, "flash" waste formed by molten metal splashing will also accumulate, further aggravating the risk of blockage in the venting groove. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a casting mold for engine cylinder block production, which has advantages such as cleaning exhaust groove residue and solving the problem of exhaust groove residue accumulation.

[0005] This utility model discloses a casting mold for producing engine cylinder blocks, comprising a base plate, a fixed mold, a support frame, and a power device. The fixed mold and the support frame are fixedly installed on the upper surface of the base plate, the power device is fixedly installed on the cross plate of the support frame, a moving mold is fixedly installed at the output end of the power device, an exhaust groove is provided in the moving mold, an installation groove is provided in the support frame, an end plate is fixedly installed in the installation groove, and an exhaust groove cleaning component is installed on the end plate.

[0006] The exhaust channel cleaning assembly includes a drive motor, a drive gear, and a driven gear. The drive motor is fixedly mounted on an end plate. The drive gear is located in a mounting slot and fixedly connected to the output end of the drive motor. The driven gear meshes with the drive gear. A rotating tube is fixedly mounted inside the driven gear. A connector is fixedly mounted at the bottom end of the rotating tube. A main rod is fixedly mounted inside the connector. An end block is fixedly mounted at the bottom end of the main rod. Spring rods are evenly mounted on the lower outer circumference of the end block. A scraper is fixedly mounted at the end of the spring rod. Brush bristles are fixedly mounted on the lower outer circumference of the main rod.

[0007] This utility model discloses a casting mold for producing engine cylinder blocks, wherein the scraper is arc-shaped and the outer wall of the scraper is in contact with the inner wall of the exhaust groove.

[0008] This utility model discloses a casting mold for producing engine cylinder blocks, wherein the scrapers are arranged in a spiral shape, and the lowermost end of each scraper partially overlaps with the uppermost end of the previous scraper.

[0009] This utility model discloses a casting mold for producing engine cylinder blocks, wherein the top end of the rotating tube passes through an end plate and is rotatably fitted with a connector, and the connector is fixedly installed on the end plate.

[0010] This utility model discloses a casting mold for producing engine cylinder blocks, wherein the main rod has a hollow internal structure and the outer surface of the main rod is uniformly provided with air outlet grooves.

[0011] This utility model discloses a casting mold for producing engine cylinder blocks, wherein a reinforcing plate is fixedly installed on the lower surface of the support frame cross plate, and the reinforcing plates are evenly distributed in the front, back, left and right directions, and a reinforcing ring is fixedly installed between adjacent reinforcing plates.

[0012] This utility model discloses a casting mold for producing engine cylinder blocks, wherein the main rod is located inside the reinforcing plate, and the distance between the outer walls of the two reinforcing plates is smaller than the diameter of the exhaust groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. The scraper of this utility model adopts an arc-shaped surface contact design and a spiral arrangement. Its outer wall surface fits into the inner wall of the exhaust groove, and the lower end of the adjacent scraper is located below the higher end, forming a gapless spiral scraping surface, which can perform full-area scraping on the inner wall of the exhaust groove and remove stubborn deposits such as metal residue and oxide scale.

[0015] 2. The bristles on the surface of the main rod of this utility model rotate synchronously with the main rod, which can perform secondary brushing and cleaning of the impurities remaining after scraping by the scraper, thus improving the residue cleaning effect.

[0016] 3. The air introduced into the hollow structure of the main rod of this utility model is sprayed out through the air outlet groove to form a swirling blowing effect, which can blow away the impurities scraped and brushed off from the inner wall of the exhaust groove, avoid the secondary adhesion of impurities and their accumulation, and further improve the residue cleaning effect. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the mounting groove structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the cleaning component structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the end block structure of this utility model.

[0022] In the diagram: 1. Base plate; 2. Fixed mold; 3. Support frame; 4. Power equipment; 5. Moving mold; 6. Exhaust trough; 7. Mounting trough; 8. Exhaust trough cleaning assembly; 801. Drive motor; 802. Drive gear; 803. Driven gear; 804. Rotating tube; 805. Connector; 806. Connector head; 807. Main rod; 808. End block; 809. Spring rod; 810. Scraper; 811. Brush bristles; 812. Air outlet trough; 813. Reinforcing plate; 814. Reinforcing ring; 9. End plate. Detailed Implementation

[0023] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0024] Please see Figure 1-4 This utility model discloses a casting mold for producing engine cylinder blocks, comprising a base plate 1, a fixed mold 2, a support frame 3, and a power device 4. The fixed mold 2 and the support frame 3 are fixedly installed on the upper surface of the base plate 1, and the power device 4 is fixedly installed on the horizontal plate of the support frame 3. A moving mold 5 is fixedly installed at the output end of the power device 4. An exhaust groove 6 is provided in the moving mold 5, and an installation groove 7 is provided in the support frame 3. An end plate 9 is fixedly installed in the installation groove 7, and an exhaust groove cleaning component 8 is installed on the end plate 9.

[0025] A fixed mold 2 is installed on the base plate 1, and a moving mold 5 is installed at the output end of the power equipment 4. The moving mold 5 and the fixed mold 2 cooperate to form the entire mold. A pouring gate is opened on the moving mold 5. The molten metal is injected into the mold cavity formed by the closing of the moving mold 5 and the fixed mold 2 through the pouring gate of the moving mold 5. The lower part of the fixed mold 2 is provided with an ejection structure for ejecting the casting during demolding, ensuring that the casting is smoothly separated from the mold cavity. A venting groove 6 is provided inside the moving mold 5. The upper end of the venting groove 6 is provided with a chamfer structure. During demolding, the power equipment 4 drives the moving mold 5 to move upward, and the venting groove cleaning component 8 cleans the venting groove 6.

[0026] The exhaust duct cleaning assembly 8 includes a drive motor 801, a drive gear 802, and a driven gear 803. The drive motor 801 is fixedly mounted on the end plate 9. The drive gear 802 is located in the mounting groove 7 and is fixedly connected to the output end of the drive motor 801. The driven gear 803 meshes with the drive gear 802. A rotating tube 804 is fixedly mounted inside the driven gear 803. A connector 806 is fixedly mounted at the bottom end of the rotating tube 804. A main rod 807 is fixedly mounted inside the connector 806. An end block 808 is fixedly mounted at the bottom end of the main rod 807. Spring rods 809 are evenly mounted on the lower outer circumference of the end block 808. A scraper 810 is fixedly mounted at the end of the spring rod 809. Brush bristles 811 are fixedly mounted on the lower outer circumference of the main rod 807.

[0027] The drive motor 801 drives the active gear 802 to rotate, which in turn drives the driven gear 803 to rotate. Through transmission, the rotating tube 804, connector 806, and main rod 807 rotate. The spring rod 809 installed on the lower side of the outer peripheral surface of the end block 808 is elastic and can bend and return to its original position. A scraper 810 is installed at the end of the spring rod 809. When the moving mold 5 moves upward, the scraper 810 is inserted into the exhaust groove 6. The chamfered structure at the upper end of the exhaust groove 6 facilitates the entry of the scraper 810 into the exhaust groove 6. When the scraper 810 is inserted into the exhaust groove 6, the elasticity of the spring rod 809 ensures that the scraper 810 is in close contact with the inner wall of the exhaust groove 6, scraping and cleaning the inner wall of the exhaust groove 6. At the same time, the drive motor 801 drives the bristles 811 on the surface of the main rod 807 to rotate synchronously with the main rod 807, performing a secondary cleaning of the inner wall of the exhaust groove 6.

[0028] The scraper 810 is arc-shaped, and the outer wall of the scraper 810 is in contact with the inner wall of the exhaust groove 6.

[0029] The scraper 810 adopts an arc-shaped curved surface design, and its outer wall surface fits into the inner wall cavity of the exhaust groove 6. This arc-shaped structure forms a surface contact with the inner wall of the exhaust groove 6, increasing the cleaning contact area.

[0030] The scrapers 810 are arranged in a spiral shape, and the bottom of each scraper 810 partially overlaps with the top of the previous scraper 810.

[0031] Multiple scrapers 810 are circumferentially assembled on the outer ring of the end block 808 in a ring-shaped distribution. The lower end of the scraper 810 overlaps below the higher end of the adjacent scraper 810, forming a continuous and gapless spiral scraping surface, which can perform full-area scraping operation on the inner wall of the exhaust groove 6, ensuring that metal residues, slag and other impurities in the exhaust groove 6 are completely scraped away.

[0032] The top end of the rotating tube 804 passes through the end plate 9 and is rotatably fitted with a connector 805, which is fixedly installed on the end plate 9.

[0033] The top end of the rotating tube 804 is rotatably connected to the connector 805. The connector 805 is used to connect the air tube. The connector 805 is fixed, while the rotating tube 804 is designed to be rotatable.

[0034] The main rod 807 has a hollow internal structure, and the outer surface of the main rod 807 is uniformly provided with air outlet grooves 812.

[0035] Connector 805 connects to the air pipe, and air is transmitted to the main rod 807 through the rotating pipe 804. The airflow is sprayed out through the air outlet groove 812, which can promptly blow away the residue scraped by the scraper 810 and brushed off by the bristles 811 from the inner wall of the exhaust groove 6, preventing impurities from adhering to the groove body again. At the same time, the air outlet grooves 812 are evenly distributed on the outer surface of the main rod 807, and the main rod 807 rotates with the drive motor 801, so that the airflow is sprayed out through the air outlet grooves 812 to form a swirling blowing effect, thereby further increasing the cleaning effect.

[0036] A reinforcing plate 813 is fixedly installed on the lower surface of the support frame 3 horizontal plate, and the reinforcing plates 813 are evenly distributed in the front, back and left and right directions. A reinforcing ring 814 is fixedly installed between adjacent reinforcing plates 813.

[0037] The reinforcing plates 813 are distributed in all directions, with gaps between adjacent reinforcing plates 813 to prevent the reinforcing structure from obstructing airflow.

[0038] The main rod 807 is located inside the reinforcing plate 813, and the distance between the outer walls of the two reinforcing plates 813 is less than the diameter of the exhaust groove 6.

[0039] The outer edge of the reinforcing plate 813 can extend into the inner cavity of the exhaust groove 6, which can support and protect the main rod 807 located inside it, and prevent the main rod 807 from deforming after long-term use and becoming misaligned with the exhaust groove 6.

[0040] When using a casting mold for engine block production: the power unit 4 drives the moving mold 5 to move down and close with the fixed mold 2. After the mold is closed, molten metal is injected into the cavity through the pouring port on the moving mold 5. During the pouring process, gas is discharged through the exhaust groove 6. Due to the flow impact of the molten metal during injection, some molten metal will splash into the exhaust groove 6. After the casting is formed, the power unit 4 drives the moving mold 5 to move up. The arc-shaped scraper 810 with a spiral setting on the outer ring of the end block 808 is inserted into the exhaust groove 6 with the elastic reset of the spring rod 809 to scrape off the residue. At the same time, the drive motor 801 drives the brush bristles 811 on the surface of the main rod 807 to rotate synchronously with the main rod 807 to perform secondary cleaning of the inner wall of the exhaust groove 6. During the cleaning process, the connector 805 is connected to the air pipe. The airflow is transmitted to the main rod 807 through the rotating pipe 804 and then sprayed out through the air outlet groove 812 to form a swirling blowing to blow off the impurities from the groove wall, thereby further increasing the cleaning effect.

[0041] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A casting mold for producing engine cylinder blocks, comprising a base plate (1), a fixed mold (2), a support frame (3), and a power unit (4), characterized in that: The fixed mold (2) and the support frame (3) are fixedly installed on the upper surface of the base plate (1). The power equipment (4) is fixedly installed on the horizontal plate of the support frame (3). The output end of the power equipment (4) is fixedly installed with a moving mold (5). An exhaust groove (6) is opened in the moving mold (5). An installation groove (7) is opened in the support frame (3). An end plate (9) is fixedly installed in the installation groove (7). An exhaust groove cleaning component (8) is installed on the end plate (9). The exhaust trough cleaning assembly (8) includes a drive motor (801), a drive gear (802), and a driven gear (803). The drive motor (801) is fixedly mounted on the end plate (9). The drive gear (802) is located in the mounting groove (7) and is fixedly connected to the output end of the drive motor (801). The driven gear (803) meshes with the drive gear (802). A rotating tube (804) is fixedly mounted inside the driven gear (803). A connector (806) is fixedly mounted at the bottom end of the rotating tube (804). A main rod (807) is fixedly mounted inside the connector (806). An end block (808) is fixedly mounted at the bottom end of the main rod (807). Spring rods (809) are evenly mounted on the lower side of the outer ring of the end block (808). A scraper (810) is fixedly mounted at the end of the spring rod (809). Brush bristles (811) are fixedly mounted on the lower side of the outer circumference of the main rod (807).

2. The casting mold for producing an engine cylinder block according to claim 1, characterized in that: The scraper (810) is arc-shaped, and the outer wall of the scraper (810) is attached to the inner wall of the exhaust groove (6).

3. The casting mold for producing an engine cylinder block according to claim 1, characterized in that: The scraper (810) is arranged in a spiral shape, and the lowermost end of each scraper (810) partially overlaps with the uppermost end of the previous scraper (810).

4. The casting mold for producing an engine cylinder block according to claim 1, characterized in that: The top end of the rotating tube (804) passes through the end plate (9) and is rotatably fitted with a connector (805), which is fixedly installed on the end plate (9).

5. A casting mold for producing an engine cylinder block according to claim 1, characterized in that: The main rod (807) has a hollow structure inside, and the outer surface of the main rod (807) is uniformly provided with air outlet grooves (812).

6. A casting mold for producing an engine cylinder block according to claim 1, characterized in that: The lower surface of the support frame (3) is fixedly installed with a reinforcing plate (813), and the reinforcing plates (813) are evenly distributed in front, back, left and right. A reinforcing ring (814) is fixedly installed between adjacent reinforcing plates (813).

7. A casting mold for producing an engine cylinder block according to claim 6, characterized in that: The main rod (807) is located inside the reinforcing plate (813), and the distance between the outer walls of the two reinforcing plates (813) is less than the diameter of the exhaust groove (6).

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