Investment low-pressure casting pressure device

Abstract

The utility model discloses a low-pressure investment casting pressure device, which belongs to the technical field of investment and comprises a support, a guide post mounted on the support, a top plate arranged at the top of the guide post, a hydraulic oil cylinder mounted on the top plate, a pressing plate arranged between the support and the top plate, and the hydraulic oil cylinder penetrating through the top plate and fixedly connected with the top of the pressing plate. A supporting plate is arranged on the upper end face of the support, supporting pieces used for pushing the supporting plate to move up and down are arranged at the two ends of the supporting plate respectively, the other ends of the supporting pieces are connected with the side face of the support, a driving piece capable of driving the two supporting pieces to move at the same time is arranged on one side of the support, and penetrating openings used for a riser tube to penetrate through are formed in the support and the connecting plate respectively. And the positions of the two penetrating openings correspond to each other, so that the mold can be conveniently and quickly mounted or dismounted.

Description

Technical Field

[0001] The utility model relates to the technical field of investment mold, and more specifically to an investment mold low-pressure casting pressure device. Background Art

[0002] Low-pressure casting includes a pressure device, a molten pool-type holding furnace with the mold located below the mold, and an air compressor. A riser pipe connected to the mold cavity is fixedly arranged in the holding furnace. When casting aluminum alloy castings, the air compressor introduces compressed gas into the holding furnace. The pressure of the gas acts on the surface of the molten aluminum, so that the molten aluminum in the holding furnace smoothly fills the mold cavity along the riser pipe, and the molten aluminum in the cavity solidifies and forms under a higher pressure. Then the air compressor relieves the pressure of the gas in the holding furnace, and the molten aluminum in the riser pipe that has not yet solidified falls back into the holding furnace under the action of gravity. The hydraulic system lifts the mold and the formed aluminum alloy casting and separates the aluminum alloy casting, thereby completing the casting of the aluminum alloy casting.

[0003] Since the riser tube needs to pass through the work surface of the pressure device and extend into the interior of the mold, due to the existence of the riser tube, the mold needs to be lifted to a certain height during installation and disassembly to complete the installation or disassembly, which is rather troublesome in actual operation. In view of the above problems, a solution is proposed below. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide a low-pressure investment casting pressure device, which can realize convenient and rapid installation or disassembly of the mold.

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] A low-pressure investment casting pressure device comprises a bracket, a guide column is installed on the bracket, a top plate is arranged on the top of the guide column, a hydraulic cylinder is installed on the top plate, a pressure plate is arranged between the bracket and the top plate, the hydraulic cylinder passes through the top plate and the top of the pressure plate and is fixedly connected, a support plate is arranged on the upper end surface of the bracket, support members for pushing the support plate to move up and down are respectively arranged at both ends of the support plate, the other end of the support member is connected to the side of the bracket, a driving member that can drive two support members to move at the same time is arranged on one side of the bracket, and through holes for the liquid riser to pass through are respectively opened on the bracket and the connecting plate, and the two through holes are located in corresponding positions.

[0007] Preferably, the support member includes an X-shaped telescopic frame, a slide, a slider and a rotating rod, two slides are provided, and the two slides are symmetrically arranged on the sides of the top plate and the bracket in an up-down manner, two sliders are provided, and the two sliders are respectively slidably arranged on the corresponding slides, four rotating rods are provided, and the four rotating rods are respectively fixed on the four legs of the X-shaped telescopic frame, and the two legs at one end of the X-shaped telescopic frame are respectively rotatably matched with the support plate and the side of the bracket through the rotating rod, and the two legs at the other end of the X-shaped telescopic frame are respectively rotatably matched with the sliders on the support plate and the bracket through the rotating rod.

[0008] Preferably, the driving member includes a mounting frame, a motor, a threaded rod and a driving frame, the mounting frame is mounted on the side of the bracket, the motor is mounted on the mounting frame, the threaded rod is mounted on the output end of the motor, the driving frame is sleeved on the threaded rod, the driving frame and the threaded rod are threadedly matched, and the two output ends of the driving frame are respectively matched with two supporting members.

[0009] Preferably, the support plate is provided with a plurality of sliding openings, which respectively correspond to and fit with the guide posts, and the guide posts pass through the sliding openings and slide in cooperation.

[0010] Preferably, the driving frame is symmetrically provided with limit rods, the limit rods pass through the driving frame, and the limit rods and the driving frame are slidably matched.

[0011] Preferably, the pressing plate is sleeved on the guide column and is slidably fitted thereon.

[0012] Compared with the prior art, the advantages of the present invention are:

[0013] 1. This solution uses a driving member to simultaneously drive two X-shaped telescopic frames to start, and the two X-shaped telescopic frames push the support plate upward, so that the support plate drives the mold to move out from one end of the liquid riser, avoiding the trouble of manual operation and facilitating installation and disassembly.

[0014] Second, the motor drives the threaded rod to rotate, and the threaded rod pushes the driving frame to move. The driving frame can simultaneously push the two X-shaped telescopic frames to start, and the two X-shaped telescopic frames can ensure the stability of the movement of the support frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view structural schematic diagram of the utility model;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 3 It is a schematic diagram of the enlarged structure of A of the present utility model.

[0018] Description of the numbers in the figure:

[0019] 1. Bracket; 2. Guide column; 3. Top plate; 4. Hydraulic cylinder; 5. Press plate; 6. Support plate; 7. Support member; 8. Driving member; 9. Through-hole; 10. X-shaped telescopic frame; 11. Slide; 12. Sliding block; 13. Rotating rod; 14. Mounting frame; 15. Motor; 16. Threaded rod; 17. Driving frame; 18. Sliding mouth; 19. Limit rod. DETAILED DESCRIPTION

[0020] Embodiment 1:

[0021] See also Figure 1-3 A low-pressure investment casting pressure device includes a bracket 1, a guide column 2 is installed on the bracket 1, a top plate 3 is arranged on the top of the guide column 2, a hydraulic cylinder 4 is installed on the top plate 3, a pressure plate 5 is arranged between the bracket 1 and the top plate 3, the pressure plate 5 is sleeved on the guide column 2 and slidably fitted, and the hydraulic cylinder 4 passes through the top plate 3 and the top of the pressure plate 5 and is fixedly connected.

[0022] A support plate 6 is provided on the upper end surface of the bracket 1, and a plurality of sliding openings 18 are provided on the support plate 6. The sliding openings 18 correspond to and fit with the guide columns 2 respectively. The guide columns 2 pass through the sliding openings 18 and slide in conjunction with them. A plurality of mounting grooves (not shown in the figure) with T-shaped cross sections are evenly provided on the support plate 6. The mounting grooves are used to fix the mold by means of fixing parts to achieve detachable cooperation between the mold and the support plate 6 (this is a prior art and will not be elaborated in this application). Through openings 9 for the liquid riser to pass through are respectively provided on the bracket 1 and the connecting plate, and the positions of the two through openings 9 correspond to each other.

[0023] Both ends of the support plate 6 are respectively provided with support members 7 for pushing the support plate 6 to move up and down, and the support member 7 includes an X-shaped telescopic frame 10, a slide 11, a slider 12 and a rotating rod 13. Two slides 11 are provided, and the two slides 11 are symmetrically arranged on the sides of the top plate 3 and the bracket 1. Two sliders 12 are provided, and the two sliders 12 are respectively slidably arranged on the corresponding slides 11. Four rotating rods 13 are provided, and the four rotating rods 13 are respectively fixed on the four legs of the X-shaped telescopic frame 10. The two legs at one end of the X-shaped telescopic frame 10 are respectively rotatably matched with the support plate 6 and the side of the bracket 1 through the rotating rod 13, and the two legs at the other end of the X-shaped telescopic frame 10 are respectively rotatably matched with the sliders 12 on the support plate 6 and the bracket 1 through the rotating rod 13.

[0024] A driving member 8 that can simultaneously drive the two supporting members 7 to move is provided on one side of the bracket 1. The driving member 8 includes a mounting frame 14, a motor 15, a threaded rod 16 and a driving frame 17. The mounting frame 14 is installed on the side of the bracket 1, the motor 15 is installed on the mounting frame 14, the threaded rod 16 is installed at the output end of the motor 15, the driving frame 17 is sleeved on the threaded rod 16, the driving frame 17 and the threaded rod 16 are threadedly matched, and a limiting rod 19 is symmetrically arranged on the driving frame 17. The limiting rod 19 passes through the driving frame 17, and the limiting rod 19 and the driving frame 17 are slidably matched. The limiting rod 19 is used to ensure the stability of the movement of the driving frame 17, and the two output ends of the driving frame 17 are respectively rotatably matched with the rotating rod 13 on the support foot of the X-shaped telescopic frame 10 that rotates with the bracket 1.

[0025] Working principle:

[0026] When in use, the mold is placed on the support plate 6, the feed port of the mold is aligned with the through-hole 9 on the support plate 6, the mold is fixed by a fixing piece, and the motor 15 is started. The motor 15 will drive the threaded rod 16 to rotate, and the threaded rod 16 will drive the driving frame 17 to move. The driving frame 17 will drive one of the legs at one end of the X-shaped telescopic frame 10 to slide, so that the cooperation between the slide 11 and the slider 12 can ensure the stability of the movement of the X-shaped telescopic frame 10, and one of the legs at one end of the X-shaped telescopic frame 10 rotates and the other leg moves, that is, the X-shaped telescopic frame 10 will shorten in the vertical direction, that is, drive the support plate 6 to move downward, so as to ensure that the liquid riser of the external equipment can pass through the two through-holes 9 in turn and enter the feed port of the mold, which is convenient for installation. The pressing plate 5 is pushed by the hydraulic cylinder 4, and the pressing plate 5 acts on the upper end surface of the mold, thereby playing a low-pressure role.

Claims

1. An investment low-pressure casting pressure device, characterized in that: The invention comprises a bracket (1), a guide column (2) is installed on the bracket (1), a top plate (3) is arranged on the top of the guide column (2), a hydraulic cylinder (4) is installed on the top plate (3), a pressure plate (5) is arranged between the bracket (1) and the top plate (3), the hydraulic cylinder (4) passes through the top of the top plate (3) and the pressure plate (5) and is fixedly connected, a support plate (6) is arranged on the upper end surface of the bracket (1), support members (7) for pushing the support plate (6) to move up and down are respectively arranged at both ends of the support plate (6), the other end of the support member (7) is connected to the side of the bracket (1), a driving member (8) that can drive two support members (7) to move at the same time is arranged on one side of the bracket (1), and through openings (9) for the liquid lifting pipe to pass through are respectively opened on the bracket (1) and the connecting plate, and the two through openings (9) are located in corresponding positions.

2. The low-pressure investment casting pressure device according to claim 1, characterized in that: The support member (7) comprises an X-shaped telescopic frame (10), a slide (11), a slider (12) and a rotating rod (13). Two slides (11) are provided, and the two slides (11) are symmetrically arranged on the side of the top plate (3) and the bracket (1) in an up-down manner. Two sliders (12) are provided, and the two sliders (12) are respectively slidably arranged on the corresponding slides (11). Four rotating rods (13) are provided, and the four rotating rods (13) are respectively fixed on four legs of the X-shaped telescopic frame (10). The two legs at one end of the X-shaped telescopic frame (10) are respectively rotatably matched with the support plate (6) and the side of the bracket (1) through the rotating rod (13), and the two legs at the other end of the X-shaped telescopic frame (10) are respectively rotatably matched with the sliders (12) on the support plate (6) and the bracket (1) through the rotating rod (13).

3. The low-pressure investment casting pressure device according to claim 1, characterized in that: The driving member (8) comprises a mounting frame (14), a motor (15), a threaded rod (16) and a driving frame (17); the mounting frame (14) is mounted on a side of the bracket (1); the motor (15) is mounted on the mounting frame (14); the threaded rod (16) is mounted on an output end of the motor (15); the driving frame (17) is sleeved on the threaded rod (16); the driving frame (17) and the threaded rod (16) are threadedly matched; and two output ends of the driving frame (17) are respectively transmission-matched with two supporting members (7).

4. The low-pressure investment casting pressure device according to claim 1, characterized in that: The support plate (6) is provided with a plurality of sliding openings (18), the sliding openings (18) respectively corresponding to and fitting with the guide posts (2), and the guide posts (2) pass through the sliding openings (18) and slide in cooperation.

5. The low-pressure investment casting pressure device according to claim 3, characterized in that: The driving frame (17) is symmetrically provided with a limiting rod (19), the limiting rod (19) passes through the driving frame (17), and the limiting rod (19) and the driving frame (17) are slidably matched.

6. The low-pressure investment casting pressure device according to claim 1, characterized in that: The pressing plate (5) is sleeved on the guide column (2) and is slidably fitted thereon.

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