Horizontal low pressure casting machine for inclined tie rods

Abstract

The present invention belongs to nonferrous metal casting equipment, and particularly relates to a horizontal low-pressure casting machine with inclined tie bars. A main mold opening and closing structure is fixedly installed on the left and right sides of the upper end surface of the working platform through a left static plate and a right static plate, respectively. The main mold opening and closing structures are screwed to the left side of the support plate. The left ends of the two guide bars 1 movably installed on the right static plate are fixed to the right side of the right movable mold plate through locking nuts 2 and screws. The guide bars 1 and 2 are arranged in parallel at 90 degrees. The left movable mold plate and the right movable mold plate slide on the guide bar 2 through the main mold opening and closing guide sleeves, respectively, to overcome the eccentricity of the mold locking force and prevent the working platform from being affected by the bending force and shortening its service life. In addition, the guide bar 2 is arranged in parallel at 45 degrees, with the front lower and the rear higher, which can meet the process requirements of the production of side mold structure castings.

Description

Technical Field

[0001] The invention belongs to nonferrous metal casting equipment, and in particular relates to a horizontal low-pressure casting machine with an inclined tie rod. Background Art

[0002] In the low-pressure casting process of non-ferrous metals, the production of non-ferrous metal castings mainly uses two types of low-pressure casting machines, vertical and horizontal. The advantages of the vertical low-pressure casting machine are that it can be centrally positioned, easy to eject, and the mold plate is evenly stressed. The disadvantage is that the mold installation surface is small due to the limitation of the four columns, and it is inconvenient to install the mold and remove the casting due to the limitation of the upper mold plate, and it is not suitable for the production of large castings; the advantage of the horizontal low-pressure casting machine is that it is convenient to install the mold and remove the casting, and the mold installation space is large, which is very suitable for the production of large castings. The disadvantage is that the opening and closing force is eccentric, and the casting is easily pulled off course during the mold opening process, causing deformation, cracks, and even breakage of the casting, increasing the rework rate and scrap rate of the casting, and the working platform is affected by the bending force and reduces its service life. In this way, the existing horizontal low-pressure casting machine has deficiencies in production efficiency and leveling quality in the production process of large non-ferrous metal castings. Summary of the Invention

[0003] The purpose of the present invention is to overcome the above technical deficiencies and provide a horizontal low-pressure casting machine with inclined tie bars, which has accurate mold positioning, ensures that the casting does not tilt, and is convenient and flexible to operate.

[0004] The technical solution adopted by the present invention to solve the technical problem is: a horizontal low-pressure casting machine with inclined pulleys includes a working platform, a working platform bracket, a main opening and closing mold cylinder, a side opening and closing mold cylinder, a hydraulic power system, and an electronic control system. Its characteristics are that the main opening and closing mold structures are fixedly installed on the left and right sides of the upper end surface of the working platform through a left static plate and a right static plate respectively, and the side opening and closing mold structure is fixedly installed on the middle rear convex part of the upper end surface of the working platform through a side static plate, the side opening and closing mold structure is placed in the rear center part of the main opening and closing mold structure, the side opening and closing mold structure and the main opening and closing mold structure are perpendicular to each other on the same plane, two guide bars 2 are respectively installed between the left static plate and the right static plate, the two guide bars 2 are higher in the front and lower in the back and are parallel to each other at an angle of 45 degrees, the rear higher guide bar 2 is higher than the side opening and closing mold structure, the left and right ends of the guide bar 2 are respectively fixed to the side surfaces of the left static plate and the right static plate by a locking nut 3, a pressure plate, and a screw, and two guide bars 1 are movably installed on the left static plate and the right static plate respectively, and each two guide bars 1 are higher in the front and lower in the back and are parallel to each other at an angle of 45 degrees. The left ends of the two guide bars movably worn on the left static plate are fixed to the right side surface of the support plate by locking nut 1 and screws, and the right ends of the two guide bars movably worn on the left static plate are fixed to the left side surface of the left movable plate by locking nut 2 and screws. The right ends of the two guide bars movably worn on the right static plate are fixed to the left side surface of the support plate by locking nut 1 and screws. The left ends of the two guide bars movably worn on the right static plate are fixed to the right side surface of the right movable plate by locking nut 2 and screws. The guide bars 1 and the guide bars 2 are arranged in a 90° cross and parallel manner. The left movable plate and the right movable plate slide on the guide bar 2 respectively through the main opening and closing mold guide sleeves, and the main opening and closing mold guide sleeves are respectively mounted on the left movable plate and the right movable plate and fixed with screws through the main opening and closing mold pressure cover; four guide bars 3 are evenly distributed and parallel between the side support plate and the side movable plate through connecting nuts 3 and screws at four corners, and the guide rods 3 slide in the side opening and closing mold guide sleeves fixed on the side static plate through the side opening and closing mold pressure cover and screws.

[0005] The beneficial effects of the present invention are as follows: the inclined-bar horizontal low-pressure casting machine sets two guide bars 2 in parallel at a 45° angle between the left static plate and the right static plate, with the two guide bars 2 being lower in front and higher in the back. At the same time, the two guide bars 2 cooperate with the four guide bars 1 to position and guide the left movable plate and the right movable plate, thereby achieving smooth mold opening and closing, avoiding deformation, cracks or even breakage of the casting due to deviation of the casting during the mold opening process, ensuring accurate positioning of the left and right molds, consistent force directions of the castings, overcoming eccentricity of the clamping force, preventing the working platform from being affected by bending force and shortening its service life, and the guide bars 2 being set in parallel at a 45° angle with the front lower and the back higher, which can meet the process requirements of the production of side mold structure castings. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] The following is a detailed description of the embodiments with reference to the accompanying drawings.

[0007] Figure 1 It is a structural diagram of a horizontal low-pressure casting machine with inclined tie bars.

[0008] Figure 2 This is the main view of the inclined-bar horizontal low-pressure casting machine structure.

[0009] Figure 3 yes Figure 2 Top view of .

[0010] Figure 4 yes Figure 2 Main view of the main opening and closing mold structure.

[0011] Figure 5 yes Figure 4 Left side view.

[0012] Figure 6 It is a top view of the side-opening mold closing structure.

[0013] Figure 7 yes Figure 6 P-direction view.

[0014] Figure 8 yes Figure 6 Left side view.

[0015] In the figure: 1-main mold opening and closing structure; 1-1-main mold opening and closing cylinder; 1-2-support plate; 1-3-locking nut 1; 1-4-left static plate; 1-5-guide bar 1; 1-6-locking nut 2; 1-7-left movable plate; 1-8-guide bar 2; 1-9-right movable plate; 1-10-right static plate; 1-11-pressing plate; 1-12-locking nut 3; 1-13-connecting nut 1; 1-14-main mold opening and closing guide sleeve; 1-1 5-Main mold opening and closing cover; 2-Side mold opening and closing structure; 2-1-Side moving plate; 2-2-Side support plate; 2-3-Connecting nut 2; 2-4-Connecting nut 3; 2-5-Side mold opening and closing cylinder; 2-6-Side mold opening and closing cover; 2-7-Side mold opening and closing guide sleeve; 2-8-Guide bar 3; 2-9-Side static plate; 3-Working platform; 3-1-Working platform bracket; 3-2-Working platform foot; 4-Hydraulic power system; 5-Electronic control system. DETAILED DESCRIPTION

[0016] For example, see the attached Figures 1 to 8The work platform 3 of the inclined-strut horizontal low-pressure casting machine is equipped with a work platform bracket 3-1 and bracket feet 3-2. A left static plate 1-4 and a right static plate 1-10 are bolted to the upper end surface of the work platform 3 on the left and right sides, respectively. The main mold opening and closing structure 1 is fixedly mounted through the left and right static plates 1-4 and 1-10. A side static plate 2-9 is bolted to the rear convex portion of the upper end surface of the work platform 3. The side mold opening and closing structure 2 is mounted through the side static plate 2-9. The side mold opening and closing structure 2 is positioned at the rear center of the main mold opening and closing structure 1, coplanar and perpendicular to the main mold opening and closing structure 1. Two guide bars 1-8 are respectively installed between the left and right static plates 1-4 and 1-10. The two guide bars 1-8 are arranged parallel to each other at a 45° angle, with the front lower and the rear higher. The rear higher guide bar 1-8 is higher than the side mold opening and closing structure 2. The left and right ends of the second guide bar 1-8 are respectively secured to the left side of the left static plate 1-4 and the right side of the right static plate 1-10 via lock nuts 3 1-12, pressure plates 1-11, and screws. Two guide bars 1-5 are movably mounted on each of the left and right static plates 1-4, 1-10. Each pair of guide bars 1-5 is arranged parallel to each other at a 45° angle, with the front higher and the back lower. The left ends of the two guide bars 1-5 movably mounted on the left static plate 1-4 are secured to the right side of the support plate 1-2 via lock nuts 1-3 and screws. The right ends of the two guide bars 1-5 movably mounted on the left static plate 1-4 are secured to the left side of the left movable mold plate 1-7 via lock nuts 2 1-6 and screws. The right ends of the two guide bars 1-5 movably mounted on the right static plate 1-10 are fixed to the left side of the support plate 1-2 via lock nuts 1-3 and screws. The left ends of the two guide bars 1-5 movably mounted on the right static plate 1-10 are fixed to the right side of the right movable mold plate 1-9 via lock nuts 1-6 and screws. The guide bars 1-5 and 1-8 are arranged parallel and cross-sectionally at a 90-degree angle. The left main mold opening and closing cylinder 1-1 is fixed to the left side of the left static plate 1-4 via screws. The right main mold opening and closing cylinder 1-1 is fixed to the right side of the right static plate 1-10 via screws. The piston rod of the left main mold opening and closing cylinder 1-1 movably passes through the inner hole of the left static plate 1-4 and is fixed to the left movable mold plate 1-7 via connecting nuts 1-13 and screws. The right main mold opening and closing cylinder 1-1 is fixed to the right side of the right static plate 1-10 via screws. The piston rod of the right main mold opening and closing cylinder 1-1 moves through the inner hole of the right static plate 1-10 and is fixed to the right movable mold plate 1-9 via connecting nut 1-3 and screws. The left movable mold plate 1-7 and the right movable mold plate 1-9 slide on guide bar 2 1-8 via main mold opening and closing guide sleeves 1-14. The main mold opening and closing guide sleeves 1-14 are respectively installed on the left movable mold plate 1-7 and the right movable mold plate 1-9 and are fixed with screws via the main mold opening and closing cover 1-15.Four guide bars 3 2-8 are evenly spaced and parallel between the side support plate 2-2 and the side movable plate 2-1, using connecting nuts 3 2-4 and screws. One end of the guide bars 3 2-8 is fixedly connected to the side support plate 2-2, and the other end is fixedly connected to the side movable plate 2-1, using connecting nuts 3 2-4 and screws. The side opening and closing mold cylinder 2-5 is fixed to the side of the side static plate 2-9 via screws. The piston rod of the side opening and closing mold cylinder 2-5 is fixedly connected to the side support plate 2-2 via connecting nuts 2-3 and screws. The guide bars 3 2-8 slide within the side opening and closing mold guide sleeves 2-7, which are fixed to the side static plate 2-9 via side opening and closing mold pressure covers 2-6 and screws. A hydraulic power system 4 and an electronic control system 5 are fixed to the ground to the right of the work platform 3. The electronic control system 5 is connected to the hydraulic power system 4, and the hydraulic power system 4 is connected to the main opening and closing mold cylinder 1-1 and the side opening and closing mold cylinder 2-5 via hydraulic pipelines.

[0017] The working process of the inclined tie rod horizontal low-pressure casting machine is as follows: first, start the electronic control system 5, start the hydraulic pump of the hydraulic power system 4 through the motor of the electronic control system 5, adjust the hydraulic power system 4 to ensure that the system pressure is 12MPa, and run each action dry to ensure that each action is normal; install the mold base on the working platform 3, and then place the assembled mold in the center of the mold base, close the main opening and closing mold structure 1, and fix the left and right molds of the mold on the left movable mold plate 1-7 and the right movable mold plate 1-9 respectively, close the side opening and closing mold structure 2, and connect the side molds to the side movable plate 2-1 On, debug each action to ensure smooth operation and complete mold installation; work begins, drive the main mold opening and closing cylinder 1-1 forward to close the mold through the hydraulic power system 4, and after the main mold opening and closing structure 1 locks the main mold, the side mold opening and closing structure 2 locks the side mold, and the hydraulic power system 4 maintains pressure; then start using the filling device to fill, pressurize, maintain pressure, and cool the casting according to the casting process. When the cooling time is up, the side mold opening and closing structure 2 pulls the core. After the core is pulled into place, the clamping structure retreats to release the mold, and the main mold opening and closing structure 1 opens the mold to the set position and takes out the casting, completing a production process cycle.

Claims

1. A horizontal low-pressure casting machine with inclined tie bars, comprising a working platform (3), a working platform bracket (3-1), a main mold opening and closing cylinder (1-1), a side mold opening and closing cylinder (2-5), a hydraulic power system (4), and an electronic control system (5), characterized in that: A main mold opening and closing structure (1) is fixedly mounted on the left and right sides of the upper end surface of the working platform (3) through a left static plate (1-4) and a right static plate (1-10), respectively. A side mold opening and closing structure (2) is fixedly mounted on the rear convex portion of the middle of the upper end surface of the working platform (3) through a side static plate (2-9). The side mold opening and closing structure (2) is placed at the rear center portion of the main mold opening and closing structure (1). The side mold opening and closing structure (2) and the main mold opening and closing structure (1) are perpendicular to each other on the same plane. Two guide bars (1-8) are respectively installed between the left static plate (1-4) and the right static plate (1-10). The two guide bars (1-8) are arranged parallel to each other at a 45° angle, with the front lower than the back and the rear higher. The high guide bar 2 (1-8) is higher than the side opening and closing mold structure (2). The left and right ends of the guide bar 2 (1-8) are respectively fixed to the side surfaces of the left static plate (1-4) and the right static plate (1-10) by means of locking nuts 3 (1-12), pressure plates (1-11), and screws. Two guide bars 1 (1-5) are respectively movably mounted on the left static plate (1-4) and the right static plate (1-10). The two guide bars 1 (1-5) are arranged parallel to each other at an angle of 45 degrees, with the front being higher and the back being lower. The left ends of the two guide bars 1 (1-5) movably mounted on the left static plate (1-4) are fixed to the right side surface of the support plate (1-2) by means of locking nuts 1 (1-3) and screws. The right ends of the two guide bars (1-5) of the movable wear on (1-4) are fixed to the left side of the left movable plate (1-7) through the locking nut (1-6) and the screw. The right ends of the two guide bars (1-5) of the movable wear on the right static plate (1-10) are fixed to the left side of the support plate (1-2) through the locking nut (1-3) and the screw. The left ends of the two guide bars (1-5) of the movable wear on the right static plate (1-10) are fixed to the right side of the right movable plate (1-9) through the locking nut (1-6) and the screw. The guide bars (1-5) and the guide bars (1-8) are arranged in a 90° cross-parallel arrangement. The left movable plate ( The left movable die plate (1-7) and the right movable die plate (1-9) respectively slide on the guide bar 2 (1-8) through the main opening and closing die guide sleeve (1-14), and the main opening and closing die guide sleeve (1-14) is respectively installed on the left movable die plate (1-7) and the right movable die plate (1-9) and fixed with screws through the main opening and closing die cover (1-15); four guide bars 3 (2-8) are evenly distributed and parallelly installed between the side support plate (2-2) and the side movable plate (2-1) through the connecting nut 3 (2-4) and the screws at the four corners, and the guide bars 3 (2-8) respectively slide in the side opening and closing die guide sleeve (2-7) fixed on the side static plate (2-9) through the side opening and closing die cover (2-6) and screws.

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