Automatic casting control valve

Abstract

The utility model belongs to the technical field of aluminum alloys, and particularly relates to an automatic casting control valve, comprising: an upper shell, an inner lining is provided on the inner side of the upper shell, a lower shell is axially connected to the bottom surface of the upper shell, a casting flushing port and a drain port are provided on the bottom surface of the lower shell, a double-channel valve core structure for controlling the opening and closing of the casting flushing port and the drain port is provided on the inner side of the lower shell, a position detection structure is provided between the double-channel valve core structure and the lower shell, a driving structure is provided below the lower shell, the double-channel valve core structure is transmission-connected to the driving structure; the driving structure and the position detection structure are electrically connected to an external controller. Using these structures, an automatic casting control valve is realized that can accurately control the angle, realize casting runner flushing, quantitative and constant speed casting, as well as slag removal, draining and other functions.

Description

Technical Field

[0001] The utility model belongs to the technical field of aluminum alloys, and in particular relates to an automatic casting control valve. Background Art

[0002] Because it is difficult to accurately control the flow rate and velocity of aluminum liquid during gravity casting of aluminum ingots or castings, especially when casting test castings. Too fast aluminum liquid flow rate will lead to serious slag roll and inclusion defects, while too slow flow rate will lead to defects such as insufficient pouring and cold shut, both of which will seriously affect the quality and performance of castings, resulting in invalid test data and an increase in sample volume. At the same time, aluminum liquid is a high-temperature liquid. Once overflow occurs, it may cause risks such as personal injury and explosion. In addition, aluminum slag, oxides and other residues often remain at the casting distribution port. Once they are filled into the casting mold cavity with aluminum liquid, they will form slag inclusions, inclusions and other defects in the casting or ingot, seriously affecting the mechanical properties of the casting.

[0003] The technology of this application aims to solve the problems of controlling the quantitative and constant speed supply of casting aluminum liquid, avoiding defects such as slag inclusion and impurities, and casting safety. Utility Model Content

[0004] The utility model aims to provide an automatic casting control valve to solve the above problems and achieve the functions of casting runner flushing, quantitative and constant speed casting, slag discharge, draining and the like.

[0005] To achieve the above purpose, the utility model provides the following solutions:

[0006] An automatic casting control valve, comprising: an upper shell, an inner lining is provided on the inner side of the upper shell, a lower shell is axially connected to the bottom surface of the upper shell, a casting flushing port and a liquid discharge port are provided on the bottom surface of the lower shell, a dual-channel valve core structure for controlling the opening and closing of the casting flushing port and the liquid discharge port is provided on the inner side of the lower shell, a position detection structure is provided between the dual-channel valve core structure and the lower shell, a driving structure is provided below the lower shell, and the dual-channel valve core structure is drivingly connected to the driving structure;

[0007] The driving structure and the position detection structure are electrically connected to an external controller.

[0008] Preferably, the dual-channel valve core structure includes a control valve core, and a drainage hole and a casting flushing hole are vertically opened on the control valve core. The drainage hole matches the drainage port, and the casting flushing hole matches the casting flushing port. The control valve core shaft is connected to a rotating shaft, and the bottom end of the rotating shaft passes through the bottom surface of the lower shell, and the driving structure is transmission-connected to the bottom end of the rotating shaft.

[0009] Preferably, the casting flushing hole is an elongated arc-shaped hole, and the shape of the casting flushing port matches the casting flushing hole.

[0010] Preferably, the driving structure comprises a rotating rod, one end of which is clamped with the bottom end of the rotating shaft, and the other end of which is transmission-connected with a driving part.

[0011] Preferably, a docking sleeve is provided at one end of the rotating rod close to the rotating shaft, and the docking sleeve is arranged on the outside of the rotating shaft through a spline sleeve. A clamping nut is threadedly connected to the bottom end of the rotating shaft, and the clamping nut abuts against the bottom surface of the docking sleeve.

[0012] Preferably, the driving part comprises a connecting rod, one end of the connecting rod is fixedly connected to the output shaft of the servo motor, the output shaft of the servo motor is perpendicular to the connecting rod, the servo motor is fixedly connected to the external fixing bracket, the top surface of the other end of the connecting rod is fixedly connected to a slider, the bottom surface of the end of the rotating rod away from the rotating shaft is provided with a sliding groove, and the slider is slidably connected to the outer side of the sliding groove;

[0013] The servo motor is electrically connected to the external controller.

[0014] Preferably, the position detection structure comprises a plurality of detection detection heads and a plurality of docking detection heads, wherein the plurality of detection detection heads are arranged at equal intervals along the circumferential direction on the inner side of the lower housing, and the plurality of docking detection heads are arranged at equal intervals along the circumferential direction on the outer side of the control valve core;

[0015] The detection detection head and the docking detection head are electrically connected to the external controller.

[0016] Compared with the prior art, the utility model has the following advantages and technical effects:

[0017] The device is provided with a dual-channel valve core structure, which cooperates with the transmission of the driving structure to effectively control the opening and closing of the casting flushing port and the drain port, and control the opening and closing angle of the casting flushing port, so as to control the casting in a quantitative and constant speed manner. In addition, a position detection structure is also provided between the dual-channel valve core structure and the lower outer shell. The rotation angle of the valve core structure in the device can be monitored through the dual-channel valve core structure and the position detection structure of the lower outer shell, thereby achieving stable control of the angle.

[0018] Utilizing these structures, an automatic casting control valve is realized that can precisely control the angle, realize casting runner flushing, quantitative and constant speed casting, as well as slag discharge and draining and other functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor:

[0020] Figure 1 It is a structural schematic diagram of the device;

[0021] Figure 2 This is an explosion diagram of the device;

[0022] Figure 3 It is a structural setting of a valve core structure and a drive structure.

[0023] Figure numerals: 1. upper shell; 2. lower shell; 3. lining; 4. valve core structure; 5. driving structure; 6. position detection structure; 7. casting flushing port; 8. drain port; 401. control valve core; 402. drain hole; 403. casting flushing hole; 404. rotating shaft; 405. docking joint; 406. pressing nut; 501. rotating rod; 502. docking sleeve; 503. spline groove; 504. connecting rod; 505. servo motor; 506. slide groove; 601. detection detection head; 602. docking detection head. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] Reference Figures 1 to 3 As shown, the utility model provides an automatic casting control valve, comprising: an upper shell 1, an inner lining 3 is provided on the inner side of the upper shell 1, a lower shell 2 is axially connected to the bottom surface of the upper shell 1, a casting flushing port 7 and a drain port 8 are provided on the bottom surface of the lower shell 2, a double-channel valve core structure 4 for controlling the opening and closing of the casting flushing port 7 and the drain port 8 is provided on the inner side of the lower shell 2, a position detection structure 6 is provided between the double-channel valve core structure 4 and the lower shell 2, a driving structure 5 is provided below the lower shell 2, and the double-channel valve core structure 4 is drivingly connected to the driving structure 5;

[0027] The driving structure 5 and the position detection structure 6 are electrically connected to the external controller.

[0028] The device is provided with a dual-channel valve core structure 4, which cooperates with the transmission of the driving structure 5 to well control the opening and closing of the casting flushing port 7 and the drain port 8, and control the opening and closing angle of the casting flushing port 7, so as to control the casting in a quantitative and constant speed manner. In addition, a position detection structure 6 is also provided between the dual-channel valve core structure 4 and the lower shell 2. The rotation angle of the valve core structure 4 in the device can be monitored through the position detection structure 6 of the dual-channel valve core structure 4 and the lower shell 2, thereby realizing stable control of the angle.

[0029] The external controller includes a power supply and a signal terminal board device, and the driving structure 5 and the position detection structure 6 are electrically connected to the power supply and the signal terminal board device respectively.

[0030] A further optimized solution is provided, in which the dual-channel valve core structure 4 includes a control valve core 401, on which a drainage hole 402 and a casting flushing hole 403 are vertically opened, the drainage hole 402 matches the drainage port 8, the casting flushing hole 403 matches the casting flushing port 7, the control valve core 401 is axially connected to a rotating shaft 404, the bottom end of the rotating shaft 404 passes through the bottom surface of the lower shell 2, and the driving structure 5 is transmission-connected to the bottom end of the rotating shaft 404.

[0031] The relative positions of the drain hole 402 and the casting flushing hole 403 on the control valve core 401 are different from the relative positions of the casting flushing port 7 and the drain port 8. When the drain hole 402 is aligned with the drain port 8, the casting flushing hole 403 is not connected to the casting flushing port 7. When the casting flushing hole 403 is connected to the casting flushing port 7, the drain hole 402 is not connected to the drain port 8. By controlling the staggered situation between the casting flushing hole 403 and the casting flushing port 7, the different flow rates and flow velocities required for casting can be controlled, and quantitative and constant speed control can be performed.

[0032] According to a further optimization scheme, the casting flushing hole 403 is an elongated arc-shaped hole, and the shape of the casting flushing port 7 matches the casting flushing hole 403 .

[0033] The center of the casting flushing hole 403 is located on the axis of the control valve core 401 , and the passage to the casting flushing port 7 can be changed by rotating the casting flushing hole 403 .

[0034] According to a further optimized solution, the driving structure 5 includes a rotating rod 501 , one end of which is clamped with the bottom end of the rotating shaft 404 , and the other end of the rotating rod 501 is transmission-connected with a driving unit.

[0035] To further optimize the solution, a docking sleeve 502 is provided at one end of the rotating rod 501 close to the rotating shaft 404. The docking sleeve 502 is arranged on the outside of the rotating shaft 404 through a spline sleeve. A clamping nut 406 is threadedly connected to the bottom end of the rotating shaft 404, and the clamping nut 406 abuts against the bottom surface of the docking sleeve 502.

[0036] The relative position of the docking sleeve 502 is fixed by the compression nut 406 , and the spline groove 503 provided on the docking sleeve 502 can push the docking head 405 at the bottom of the rotating shaft 404 through the spline, thereby driving the control valve core 401 to rotate.

[0037] Further optimizing the scheme, the driving part includes a connecting rod 504, one end of the connecting rod 504 is fixedly connected to the output shaft of the servo motor 505, the output shaft of the servo motor 505 is perpendicular to the connecting rod 504, the servo motor 505 is fixedly connected to the external fixed bracket, the top surface of the other end of the connecting rod 504 is fixedly connected to a slider, and the bottom surface of the end of the rotating rod 501 away from the rotating shaft 404 is provided with a slide groove 506, and the slider is slidably connected to the slide groove 506;

[0038] The servo motor 505 is electrically connected to an external controller.

[0039] When the servo motor 505 is started, the connecting rod 504 rotates, which can drive the slider to rotate, and the slider pushes the rotating rod 501 to rotate. The setting of the sliding groove 506 allows the slider to normally push the rotating rod 501 to rotate.

[0040] Further optimized solution, the position detection structure 6 includes a plurality of detection detection heads 601 and a plurality of docking detection heads 602, wherein the plurality of detection detection heads 601 are arranged at equal intervals along the circumferential direction on the inner side of the lower housing 2, and the plurality of docking detection heads 602 are arranged at equal intervals along the circumferential direction on the outer side of the control valve core 401;

[0041] The detection detection head 601 and the docking detection head 602 are electrically connected to the external controller.

[0042] By making different docking detection heads 602 and detection detection heads 601 come into contact, the rotation angle of the control valve core 401 in the device can be detected.

[0043] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0044] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. An automatic casting control valve, characterized in that: include: An upper shell (1), wherein an inner lining (3) is provided on the inner side of the upper shell (1), a lower shell (2) is axially connected to the bottom surface of the upper shell (1), a casting flushing port (7) and a liquid discharge port (8) are provided on the bottom surface of the lower shell (2), a dual-channel valve core structure (4) for controlling the opening and closing of the casting flushing port (7) and the liquid discharge port (8) is provided on the inner side of the lower shell (2), a position detection structure (6) is provided between the dual-channel valve core structure (4) and the lower shell (2), a driving structure (5) is provided below the lower shell (2), and the dual-channel valve core structure (4) is drivingly connected to the driving structure (5); The driving structure (5) and the position detection structure (6) are electrically connected to an external controller.

2. The automatic casting control valve according to claim 1, characterized in that: The dual-channel valve core structure (4) comprises a control valve core (401), and a drainage hole (402) and a casting flushing hole (403) are vertically opened on the control valve core (401), the drainage hole (402) matches the drainage port (8), and the casting flushing hole (403) matches the casting flushing port (7), the control valve core (401) is axially connected to a rotating shaft (404), the bottom end of the rotating shaft (404) passes through the bottom surface of the lower shell (2), and the driving structure (5) is drivingly connected to the bottom end of the rotating shaft (404).

3. The automatic casting control valve according to claim 2, characterized in that: The casting flushing hole (403) is an elongated arc-shaped hole, and the shape of the casting flushing port (7) matches the casting flushing hole (403).

4. The automatic casting control valve according to claim 2, characterized in that: The driving structure (5) comprises a rotating rod (501), one end of which is clamped with the bottom end of the rotating shaft (404), and the other end of which is drivingly connected to a driving unit.

5. The automatic casting control valve according to claim 4, characterized in that: A docking sleeve (502) is provided at one end of the rotating rod (501) close to the rotating shaft (404); the docking sleeve (502) is arranged on the outside of the rotating shaft (404) through a spline sleeve; a clamping nut (406) is threadedly connected to the bottom end of the rotating shaft (404); the clamping nut (406) abuts against the bottom surface of the docking sleeve (502).

6. The automatic casting control valve according to claim 4, characterized in that: The driving part comprises a connecting rod (504), one end of the connecting rod (504) is fixedly connected to the output shaft of the servo motor (505), the output shaft of the servo motor (505) is perpendicular to the connecting rod (504), the servo motor (505) is fixedly connected to an external fixed bracket, the top surface of the other end of the connecting rod (504) is fixedly connected to a slider, the bottom surface of one end of the rotating rod (501) away from the rotating shaft (404) is provided with a sliding groove (506), and the sliding block is slidably connected to the outer side of the sliding groove (506); The servo motor (505) is electrically connected to the external controller.

7. The automatic casting control valve according to claim 2, characterized in that: The position detection structure (6) comprises a plurality of detection detection heads (601) and a plurality of docking detection heads (602), wherein the plurality of detection detection heads (601) are arranged at equal intervals along the circumferential direction on the inner side of the lower housing (2), and the plurality of docking detection heads (602) are arranged at equal intervals along the circumferential direction on the outer side of the control valve core (401); The detection detection head (601) and the docking detection head (602) are electrically connected to the external controller.

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