Casting production system for valve casting
By introducing a sand filter screen and a shaking component into the valve casting production system, the problem of sand particles not being able to be compacted due to gaps in the sand box was solved, achieving uniform laying and compaction of sand particles, and improving valve molding quality and production efficiency.
Patent Information
- Application Number
- CN202511629594.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-08
- Publication Date
- 2026-01-23
AI Technical Summary
In existing valve casting production equipment, gaps exist inside the sand box, which prevents the sand particles used for sand casting from being compacted, thus affecting the valve forming process.
By designing a system that includes casting components, sand mold components, and shaking components, the uniform spreading and compaction of sand particles within the shaking box is achieved through the combination of sand filter screen filtration and shaking components, thus avoiding the formation of gaps between sand particles.
It achieves uniform spreading and further compaction of sand particles for sand casting, simplifies operation steps, and improves work efficiency and casting quality.
Smart Images
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Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of casting processing, more particularly, it relates to a valve casting production system. BACKGROUND
[0002] Valves are control components in fluid conveying systems, with functions of cutting off, regulating, guiding flow, preventing backflow, stabilizing pressure, shunting or overflow pressure relief, etc. Valves used in fluid control systems, from the simplest stop valve to the most complex self-control system, have quite a variety of types and specifications. Valves can be used to control various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media.
[0003] At present, when producing valves on the market, the sand casting method is generally used for valve casting production. However, the existing casting production method has the following technical problems during use: The sand box in the existing valve casting production device has the following technical problems during use: due to its simple structure, it cannot realize synchronous operation of multiple steps, resulting in certain gaps in the sand box after filling the sand particles for sand casting, which further leads to the inability to achieve a dense degree during casting valves, and has a certain impact on the subsequent valve forming process. SUMMARY
[0004] In view of the deficiencies in the prior art, the purpose of the present application is to provide a valve casting production system that can promote the sand particles for sand casting in the shaking sand box to be evenly laid in the shaking sand box under the filtering action of the sand filter net, prevent larger particles in the sand particles for sand casting from falling into the shaking sand box, and prevent gaps between the sand particles for sand casting and the valve sand core, so as to prevent the inability to achieve further ramming effect and avoid the impact on the final casting process.
[0005] In order to achieve the above object, the present application provides the following technical scheme: a valve casting production system for casting, comprising a casting assembly, a sand mold assembly is slidably matched on the casting assembly; the casting assembly comprises a casting part and a top pressing part slidably matched on the casting part, the sand mold assembly comprises a moving part slidably matched on the casting part, a wobble part fixedly installed on the moving part and a sand wobble part slidably matched on the moving part; the casting part comprises a casting box, a plurality of guide rods are fixedly arranged on the bottom of the casting box, an L-shaped moving plate is fixedly arranged on the top of the casting box, and two vertical plates are symmetrically fixed on the bottom of the L-shaped moving plate; the moving part comprises a positioning plate slidably matched between the plurality of guide rods; the wobble part comprises a mounting plate fixedly installed on the positioning plate, a T-shaped sliding block is fixedly arranged on one side of the mounting plate and slidably matched between the two vertical plates, a hinged arm is hingedly matched on one side of the mounting plate, a U-shaped extrusion arm is fixedly arranged on the end of the hinged arm, a push rod is fixedly arranged on the inner wall of the U-shaped extrusion arm and slidably matched with the sand wobble part, and an arc-shaped spring is fixedly arranged on one side of the hinged arm and fixedly connected with the sand wobble part.
[0006] The present application is further provided that: the inner wall of the L-shaped moving plate is fixedly provided with a trapezoidal plate, and the protrusions at the bottom of the displacement are connected with the trapezoidal plate.
[0007] The present application is further provided that: a sliding groove is formed through the top of the hinged arm; a sliding rod is arranged on one side of the T-shaped sliding block and slidably matched in the T-shaped sliding block and the mounting plate, two guide rails are fixedly arranged on the side surface of the sliding rod and slidably matched in the T-shaped sliding block and the positioning plate, a sliding ball is fixedly arranged on one end of the sliding rod and slidably matched with the trapezoidal plate and the plurality of protrusions, a U-shaped plate is fixedly arranged on the other end of the sliding rod, and a sliding shaft is fixedly arranged on the inner wall of the U-shaped plate and slidably matched in the sliding groove.
[0008] The present application is further provided that: the sand wobble part comprises a sand wobble box, a sand filter net is arranged on the bottom of the sand wobble box, and a plurality of U-shaped sliding plates are fixedly arranged on the peripheral side of the sand wobble box and slidably matched in the positioning plate; a plurality of elastic springs are fixedly arranged between the peripheral side of the sand wobble box and the positioning plate, and an oblique groove is formed through the bottom of the sand wobble box and slidably matched with the push rod.
[0009] The present application is further provided that: an installation cavity is arranged on the bottom of the casting box, a vibration motor is fixedly arranged on the top of the installation cavity, a bottom plate is fixedly arranged on the peripheral side of the casting box, a driving motor is fixedly arranged on the top of the bottom plate, and a threaded screw rod is fixedly arranged on the output shaft of the driving motor and threadedly connected with the positioning plate.
[0010] The application is further provided with an L-shaped support plate fixed on the outer circumferential side of the casting box, a servo motor fixed on one inner side of the L-shaped support plate, a moving threaded rod fixed on the output shaft of the servo motor, a guide cross bar fixed on one inner side of the L-shaped support plate, and an installation groove extending downward formed on the outer top of the casting box.
[0011] The application is further provided with a top pressing member including a top pressing plate, a casting pipe penetratingly and communicatively arranged on the top of the top pressing plate, and a pouring ladle communicated with the top of the casting pipe; two side plates fixed on the top of the top pressing plate; and two lower pressing plates fixed on the outer bottom of the shaking sand box.
[0012] The application is further provided with a work-shaped sliding block fixed on the back side of each of the two side plates, a U-shaped sliding plate slidingly matched with each of the two work-shaped sliding blocks, a vertical round rod fixed on the inner bottom of each of the two U-shaped sliding plates, a reset spring fixed between the work-shaped sliding block and the U-shaped sliding plate and sleeved on the vertical round rod, and a threaded rotating connection between one U-shaped sliding plate and the moving threaded rod and a sliding matching between the other U-shaped sliding plate and the guide cross bar.
[0013] The application has the following advantages: 1. The gradual downward movement of the positioning plate between the guide rods drives the sliding ball fixed on one end of the sliding rod to slide on the protrusions in sequence, so that the sliding rod penetrates and slides reciprocatingly on the T-shaped sliding block and the mounting plate along with the continuous downward movement of the positioning plate, and the U-shaped sliding plates fixed on the outer circumferential side of the shaking sand box slide reciprocatingly on the positioning plate synchronously, so that the sand particles in the shaking sand box can be evenly laid in the shaking sand box under the filtering action of the sand filtering net, and the larger particles in the sand particles for sand casting can be prevented from falling into the shaking sand box, so that the gap between the sand particles for sand casting and the valve sand core can be avoided, and the further tamping effect can be achieved, and the influence on the final casting process can be avoided.
[0014] 2. The sliding ball slides from the bottom protrusion to the side of the trapezoidal plate, so that the shaking sand box returns to the original position on the positioning plate, and the center position of the shaking sand box and the center position of the top pressing member are in the state of mutual coincidence, so that the further tamping process of the sand particles for sand casting is completed integrally through the synchronous downward movement of the shaking sand box, and the further tamping operation of the sand particles for sand casting is not needed, the operation steps are simplified, and the working efficiency of the whole process is improved. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a structural schematic view of the valve casting production system.
[0016] Figure 2 It is a structural schematic view of the casting assembly.
[0017] Figure 3 Structure diagram of sand mold assembly of the present application.
[0018] Figure 4 Structure diagram of castings of the present application.
[0019] Figure 5 Side view of castings of the present application.
[0020] Figure 6 Bottom view of castings of the present application.
[0021] Figure 7 Structure diagram of top pressing piece of the present application.
[0022] Figure 8 Front view of top pressing piece of the present application.
[0023] Figure 9 Structure diagram of moving piece of the present application.
[0024] Figure 10 Structure diagram of shaking piece of the present application.
[0025] Figure 11 Structure diagram of sand shaking piece of the present application.
[0026] Figure 12 Top view of sand shaking piece of the present application.
[0027] In the figure: 1, casting assembly; 2, sand mold assembly; 3, castings; 4, top pressing piece; 5, moving piece; 6, shaking piece; 7, sand shaking piece; 301, casting box; 302, guide rod; 303, L-shaped moving plate; 304, vertical plate; 305, trapezoidal plate; 306, protruding block; 307, mounting cavity; 308, vibration motor; 309, bottom plate; 310, driving motor; 311, threaded screw rod; 312, L-shaped support plate; 313, servo motor; 314, moving threaded rod; 315, guide crossbar; 316, mounting groove; 401, top pressing plate; 402, casting pipe; 403, casting bucket; 404, side plate; 405, I-shaped sliding block; 406, U-shaped sliding plate; 407, vertical round rod; 408, reset spring; 501, positioning plate; 601, mounting plate; 602, T-shaped sliding block; 603, hinged arm; 604, U-shaped extrusion arm; 605, lever; 606, arc spring; 607, sliding groove; 608, sliding rod; 609, guide rail; 610, sliding ball; 611, U-shaped plate; 612, sliding shaft; 701, sand shaking box; 702, sand filtering net; 703, U-shaped sliding plate; 704, elastic spring; 705, oblique groove; 706, pressing plate. DETAILED DESCRIPTION
[0028] It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.
[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs.
[0030] In the present application, unless otherwise specified, the orientation such as "up, down" is generally directed to the direction shown in the drawings, or is directed to the vertical, perpendicular or gravity direction; similarly, for the convenience of understanding and description, "left, right" is generally directed to the left and right shown in the drawings; "inner, outer" refers to the inner and outer relative to the contour of each component itself, but the above orientation words are not used to limit the present application.
[0031] Embodiment one, please refer to Figures 1-12 The present application provides the following technical solutions: a valve casting production system for casting, specifically comprising a casting assembly 1, a sand mold assembly 2 is slidingly fitted on the casting assembly 1; the casting assembly 1 comprises a casting part 3 and a top pressing part 4 slidingly fitted on the casting part 3, the sand mold assembly 2 comprises a moving part 5 slidingly fitted on the casting part 3, a shaking part 6 fixedly installed on the moving part 5, and a sand shaking part 7 slidingly fitted on the moving part 5 (during the whole process, the shaking part 6 is used for driving, and the sand shaking part 7 is used for performing a later shaking action); the casting part 3 comprises a casting box 301, a plurality of guide rods 302 are fixedly arranged on the outer bottom of the casting box 301, an L-shaped moving plate 303 is fixedly arranged on the outer top of the casting box 301, and two vertical plates 304 symmetrically fixedly arranged on the inner bottom of the L-shaped moving plate 303; the moving part 5 comprises a positioning plate 501 slidingly fitted between the plurality of guide rods 302; the shaking part 6 comprises a mounting plate 601 fixedly installed on the positioning plate 501, a T-shaped sliding block 602 slidingly fitted between the two vertical plates 304 is fixedly arranged on one side of the mounting plate 601, a hinged arm 603 is hingedly fitted on one side of the mounting plate 601, a U-shaped extrusion arm 604 is fixedly arranged at the end of the hinged arm 603, a push rod 605 slidingly fitted with the sand shaking part 7 is fixedly arranged on the inner wall of the U-shaped extrusion arm 604, and an arc-shaped spring 606 fixedly connected with the sand shaking part 7 is fixedly arranged on one side of the hinged arm 603; Further, the L-shaped moving plate 303 has a trapezoidal plate 305 fixed on the inner wall of the L-shaped moving plate 303, and a plurality of protrusions 306 are fixed on the inner wall of the L-shaped moving plate 303, wherein the protrusion 306 at the bottom of the displacement is connected with the trapezoidal plate 305; the top of the articulated arm 603 has a sliding groove 607; the T-shaped sliding block 602 has a sliding rod 608 which is slidably arranged on the T-shaped sliding block 602 and the mounting plate 601, and the sliding rod 608 has two guide rails 609 which are slidably arranged on the T-shaped sliding block 602 and the positioning plate 501, and the sliding rod 608 has a sliding ball 610 which is slidably arranged on the trapezoidal plate 305 and the plurality of protrusions 306, and the sliding rod 608 has a U-shaped plate 611 which is fixed on one end of the sliding rod 608, and the U-shaped plate 611 has a sliding shaft 612 which is slidably arranged in the sliding groove 607; the sand shaking device 7 comprises a sand shaking box 701, and the sand shaking box 701 has a sand filtering net 702 arranged on the bottom of the sand shaking box 701, and the sand shaking box 701 has a plurality of U-shaped sliding plates 703 which are slidably arranged on the positioning plate 501 and are fixed on the outer circumferential surface of the sand shaking box 701; the sand shaking box 701 has a plurality of elastic springs 704 which are fixed between the outer circumferential surface of the sand shaking box 701 and the positioning plate 501, and the sand shaking box 701 has an inclined groove 705 which is slidably arranged on the elastic spring 704 and is arranged on the bottom of the sand shaking box 701.
[0032] The specific application of the embodiment is that: before the sand mold casting, through the gradual downward movement of the positioning plate 501 between the guide rods 302, the sliding ball 610 fixed at one end of the sliding rod 608 is sequentially slid on the side of the convex blocks 306 and the trapezoidal plate 305. When the sliding ball 610 fixed at one end of the sliding rod 608 is sequentially slid on the side of the convex blocks 306, through the convex design of the convex blocks 306, the sliding ball 610 is slid on the convex blocks 306, and the sliding rod 608 is simultaneously slid on the T-shaped sliding block 602 and the mounting plate 601. During the sliding process, through the sliding cooperation of the sliding shaft 612 and the sliding groove 607, the articulated arm 603 is simultaneously articulated and rotated on one side of the mounting plate 601, and the U-shaped extrusion arm 604 at the end of the articulated arm 603 and the U-shaped extrusion arm 604 are simultaneously slid in the inclined groove 705. The sliding force of the lever 605 in the inclined groove 705 acts on the arc spring 606 fixed between the articulated arm 603 and the sand shaking box 701. Through the continuous downward movement of the positioning plate 501 between the guide rods 302 and the sliding cooperation of the sliding ball 610 on the convex blocks 306, and the elastic force of the arc spring 606, the sliding rod 608 is reciprocatingly slid on the T-shaped sliding block 602 and the mounting plate 601 with the continuous downward movement of the positioning plate 501, which provides a certain thrust for the reciprocating movement of the sand shaking box 701. The elastic springs 704 connected and fixed between the outer circumferential side of the sand shaking box 701 and the positioning plate 501 are repeatedly stretched or compressed, which synchronously drives the U-shaped sliding plates 703 fixed on the outer circumferential side of the sand shaking box 701 to reciprocate on the positioning plate 501, and finally the sand particles in the sand shaking box 701 are evenly laid in the sand shaking box 701 under the filtering action of the sand filter net 702, which prevents larger sand particles from falling into the sand shaking box 701, causing gaps between the sand particles and the valve sand core, preventing further tamping, and avoiding affecting the final casting process; During the stepwise downward movement of the positioning plate 501 between the guide rods 302, the sliding ball 610 fixed at one end of the sliding rod 608 slides in turn on the protrusions 306 and the side of the trapezoidal plate 305. When the sliding ball 610 slides from the bottom protrusion 306 to the side of the trapezoidal plate 305, the arc spring 606 gradually returns to the original state. At this time, the elastic springs 704 fixed between the outer circumferential side of the shaking sand box 701 and the positioning plate 501 also gradually return to the original state. Subsequently, during the sliding of the sliding ball 610 from the inclined surface of the trapezoidal plate 305 to the horizontal surface, the shaking sand box 701 returns to the original position on the positioning plate 501. At this time, during the continuous downward movement of the positioning plate 501 between the guide rods 302, the shaking of the shaking sand box 701 on the positioning plate 501 stops, and the center position of the shaking sand box 701 coincides with the center position of the top pressing piece 4 during the later pressing and ramming process of the shaking sand box 701 (during this process, the shaking sand box 701 returns to the original position on the positioning plate 501). Through the synchronous downward movement of the shaking sand box 7, the further pressing and ramming process of the sand particles for sand casting is completed integrally, and there is no need to separately perform further ramming work on the sand particles for sand casting, which simplifies the operation steps and improves the work efficiency of the whole process.
[0033] Example two, please refer to Figures 1-12The second embodiment is improved on the basis of the first embodiment. Specifically, the outer bottom of the casting box 301 is provided with a mounting cavity 307, and the inner top of the mounting cavity 307 is fixed with a vibration motor 308. The outer peripheral side of the casting box 301 is fixed with a bottom plate 309, the top of the bottom plate 309 is fixed with a driving motor 310, the output shaft of the driving motor 310 is fixed with a threaded rod 311 which is screwed with the positioning plate 501. The outer peripheral side of the casting box 301 is fixed with an L-shaped support plate 312, one inner side of the L-shaped support plate 312 is fixed with a servo motor 313, the output shaft of the servo motor 313 is fixed with a moving threaded rod 314, one inner side of the L-shaped support plate 312 is fixed with a guide cross rod 315, and the outer top of the casting box 301 is provided with a downwardly extending mounting groove 316. The top pressing part 4 comprises a top pressing plate 401, the top of which is provided with a casting pipe 402 which is communicated therethrough, and the top of the casting pipe 402 is communicated with a casting hopper 403. The top of the top pressing plate 401 is fixed with two symmetrical side plates 404. The outer bottom of the shaking sand box 701 is fixed with two symmetrical lower pressing plates 706. The back side of each of the two side plates 404 is fixed with an I-shaped sliding block 405, and the I-shaped sliding block 405 is slidingly fitted with a U-shaped sliding plate 406. The inner bottom of each of the two U-shaped sliding plates 406 is fixed with a vertical round rod 407, and the I-shaped sliding block 405 and the U-shaped sliding plate 406 are fixed with a reset spring 408 which is sleeved on the vertical round rod 407. One U-shaped sliding plate 406 is screwedly connected with the moving threaded rod 314, and the other U-shaped sliding plate 406 is slidingly fitted with the guide cross rod 315.
[0034] The specific application of the second embodiment is: when the system is used for sand casting production of valves, the sand particles for sand casting are first laid on the inside of the pouring box 301, then the valve sand core of the shaping cavity is placed on the surface of the sand particles, and then the driving motor 310 is started to drive the threaded screw rod 311 fixed on the output shaft of the driving motor 310 to move synchronously, and the positioning plate 501 is raised and lowered on the guide rods 302 through the sliding fit between the guide rods 302 and the positioning plate 501, so that the sand box 701 reciprocates on the positioning plate 501, and the sand particles for sand casting in the sand box 701 are laid on the inside of the pouring box 301 under the filtering effect of the filter screen 702 and the shaking effect of the sand box 701, so that the filtered sand particles for sand casting cover the valve sand core, and then the vibration motor 308 fixed on the top of the installation cavity 307 is started to vibrate the sand particles for sand casting that are laid in the pouring box 301 and filtered and shaken, so that the sand particles for sand casting in the pouring box 301 vibrate left and right under the vibration of the vibration motor 308, so as to reduce the gaps between the sand particles for sand casting in the pouring box 301, make the sand particles for sand casting closely contact with the valve sand core, and achieve a certain tamping effect, thereby increasing the pouring forming effect in the later stage; After the sand particles for sand casting complete the shaking, filtering, and paving operation, the driving motor 310 stops working, at which time the positioning plate 501 stops moving downward on the guide rods 302 (there is still a certain gap between the bottom of the positioning plate 501 and the top of the pouring box 301, and the overall distance of the gap is greater than the overall height of the top pressing piece 4), then the servo motor 313 is started, which drives the moving threaded rod 314 fixed to the output shaft of the servo motor 313 to rotate synchronously, so that the moving threaded rod 314 moves synchronously on the U-shaped sliding plate 406 in a threaded manner, and through the sliding cooperation between the other U-shaped sliding plate 406 and the guide cross rod 315, the two U-shaped sliding plates 406 move towards the inside of the two installation grooves 316, respectively, until the top pressing plate 401 moves horizontally to the top of the pouring box 301, the servo motor 313 is turned off, then the driving motor 310 is started, which drives the positioning plate 501 to move downward on the guide rods 302 (during this process, the reciprocating shaking process of the shaking sand box 701 on the positioning plate 501 ends, at which time the shaking sand box 701 is located directly above the top pressing plate 401, and the center position of the shaking sand box 701 is aligned with the center position of the top pressing plate 401), so that the two lower pressing plates 706 fixed to the outer bottom of the shaking sand box 701 gradually approach the two side plates 404 fixed to the top of the top pressing plate 401, so that the shaking sand box 701 generates a downward moving force on the top pressing plate 401 through the descending process of the shaking sand box 701, so that the two I-shaped sliding blocks 405 fixedly connected between the I-shaped sliding blocks 405 and the U-shaped sliding plates 406 move downward inside the two U-shaped sliding plates 406, respectively, and the return springs 408 fixedly connected between the I-shaped sliding blocks 405 and the U-shaped sliding plates 406 are compressed synchronously (after compression, the return springs 408 facilitate the upward movement of the two I-shaped sliding blocks 405 inside the two U-shaped sliding plates 406 under the elastic force of the return springs 408, so that the top pressing plate 401 returns to the original position), so that the top pressing plate 401 moves downward above the pouring box 301, and finally through the downward movement process of the top pressing plate 401, the sand particles for sand casting inside the pouring box 301 are further compacted, which improves the later pouring forming effect. After the sand particles for sand casting complete the shaking, filtering, and paving and further compacting, the molten metal liquid in a molten state is poured into the surrounding of the molding cavity formed by the valve sand core through the pouring hopper 403 connected and arranged at the top of the casting pipe 402, so as to complete the casting work and form the required valve.
[0035] Obviously, the above-described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative labor should belong to the scope of protection of the present application.
[0036] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular form "a", "an" and "the" include plural references unless the context clearly dictates otherwise. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. As used herein, the term "includes" means includes but not limited to, and the term "including" means including but not limited to.
[0037] It should be noted that the terms "first", "second", and the like, used in the description and in the claims of the present application are intended to distinguish between similar objects, but are not necessarily intended to convey an order of precedence or sequence. It will be understood by those skilled in the art that the data so used can be interchanged, where appropriate, so that the embodiments of the present application described herein can be carried out in a variety of ways other than those explicitly described or shown herein.
[0038] The preferred embodiments of the present application have been described above with the specific embodiments. The present application can be modified and changed by those skilled in the art without departing from the spirit and principles of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
[0039] The preferred embodiments of the present application have been described above with the specific embodiments. The present application can be modified and changed by those skilled in the art without departing from the spirit and principles of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. A gating production system for valve casting, comprising a gating assembly (1), characterized in that: The casting assembly (1) is slidably matched with a sand mold assembly (2); The casting assembly (1) comprises a casting (3) and a top pressing piece (4) slidably matched on the casting (3), and the sand mold assembly (2) comprises a moving piece (5) slidably matched on the casting (3), a shaking piece (6) fixedly installed on the moving piece (5) and a sand shaking piece (7) slidably matched on the moving piece (5); The casting (3) comprises a casting box (301), a plurality of guide rods (302) are fixedly arranged on the bottom of the casting box (301), an L-shaped moving plate (303) is fixedly arranged on the top of the casting box (301), and two symmetrical vertical plates (304) are fixedly arranged on the bottom of the L-shaped moving plate (303); The moving piece (5) comprises a positioning plate (501) slidably matched between the plurality of guide rods (302); The shaking piece (6) comprises an installation plate (601) fixedly installed on the positioning plate (501), a T-shaped sliding block (602) slidably matched between the two vertical plates (304) is fixedly arranged on one side of the installation plate (601), a hinged arm (603) is hingedly matched on one side of the installation plate (601), a U-shaped extrusion arm (604) is fixedly arranged on the end of the hinged arm (603), a push rod (605) slidably matched with the sand shaking piece (7) is fixedly arranged on the inner wall of the U-shaped extrusion arm (604), and an arc-shaped spring (606) fixedly connected with the sand shaking piece (7) is fixedly arranged on one side of the hinged arm (603).
2. A valve foundry casting production system according to claim 1, characterized in that: A trapezoidal plate (305) is fixedly arranged on the inner wall of the L-shaped moving plate (303), and a plurality of protrusions (306) are fixedly arranged on the inner wall of the L-shaped moving plate (303), wherein the protrusion (306) at the bottom of the middle position is connected with the trapezoidal plate (305).
3. A valve foundry casting production system according to claim 2, characterized in that: A sliding groove (607) is formed in the top of the hinged arm (603); A sliding rod (608) slidably matched on the T-shaped sliding block (602) and the installation plate (601) is arranged on one side of the T-shaped sliding block (602), two guide rails (609) slidably matched on the T-shaped sliding block (602) and the positioning plate (501) are fixedly arranged on the side surface of the sliding rod (608), a sliding ball (610) slidably matched with the trapezoidal plate (305) and the plurality of protrusions (306) is fixedly arranged on one end of the sliding rod (608), a U-shaped plate (611) is fixedly arranged on the other end of the sliding rod (608), and a sliding shaft (612) slidably matched in the sliding groove (607) is fixedly arranged on the inner wall of the U-shaped plate (611).
4. A valve foundry casting production system according to claim 3, characterized in that: The sand shaking piece (7) comprises a sand shaking box (701), a sand filtering net (702) is arranged on the inner bottom of the sand shaking box (701), and a plurality of U-shaped sliding plates (703) slidably matched on the positioning plate (501) are fixedly arranged on the peripheral side of the sand shaking box (701); A plurality of elastic springs (704) are fixedly arranged between the peripheral side of the sand shaking box (701) and the positioning plate (501), and an inclined groove (705) slidably matched with the push rod (605) is formed in the outer bottom of the sand shaking box (701).
5. A valve foundry casting production system according to claim 4, characterized in that: The casting box (301) is externally provided with a mounting cavity (307) in the bottom part, and a vibration motor (308) is fixed in the top part of the mounting cavity (307); The casting box (301) is externally provided with a bottom plate (309) in the side part, and a driving motor (310) is fixed in the top part of the bottom plate (309), and the output shaft of the driving motor (310) is fixed with a threaded rod (311) which is in threaded connection with the positioning plate (501).
6. A valve foundry casting production system according to claim 5, characterized in that: The casting box (301) is externally provided with an L-shaped support plate (312) in the side part, and a servo motor (313) is fixed in one inner side of the L-shaped support plate (312), and the output shaft of the servo motor (313) is fixed with a moving threaded rod (314), and a guide cross rod (315) is fixed in one inner side of the L-shaped support plate (312), and the top part of the casting box (301) is provided with a downwardly extending mounting groove (316).
7. A valve foundry casting production system according to claim 6, characterized in that: The top pressing part (4) comprises a top pressing plate (401), and a casting pipe (402) is penetratingly and communicatively arranged in the top part of the top pressing plate (401), and a pouring ladle (403) is communicated in the top part of the casting pipe (402); The top part of the top pressing plate (401) is fixed with two symmetrical side plates (404); The bottom part of the shaking sand box (701) is fixed with two symmetrical lower pressing plates (706).
8. A valve foundry casting production system according to claim 7, characterized in that: The back side of each of the two side plates (404) is fixed with an I-shaped sliding block (405), and a U-shaped sliding plate (406) is slidingly matched on each of the two I-shaped sliding blocks (405), and a vertical round rod (407) is fixed in the inner bottom part of each of the two U-shaped sliding plates (406), and a reset spring (408) is fixed between the I-shaped sliding block (405) and the U-shaped sliding plate (406) and is sleeved on the vertical round rod (407), one U-shaped sliding plate (406) is in threaded rotary connection with the moving threaded rod (314), and the other U-shaped sliding plate (406) is in sliding connection with the guide cross rod (315).