Casting production device for valve casting

Abstract

The utility model discloses a casting production device for valve casting, which comprises a lower die, an upper die is arranged at the top of the lower die, a casting gate is arranged in the middle of the top surface of the upper die, and a die cavity is arranged in the middle of the top surface of the lower die; the inner side of the bottom of the lower die penetrates through a bearing left and right to be connected with a rotating rod, the middle of the rotating rod is connected with a screw rod through a conical tooth connecting piece, and the screw rod is in threaded connection with a die outlet plate; a cavity is formed in the inner side of the bottom of the lower mold, and knocking rods are slidably connected into the cavity at equal intervals in a penetrating mode. And a heat dissipation cavity is formed in the top of the inner side of the lower mold and surrounds the outer side of the mold cavity, cooling pipes are laid on the inner wall of the heat dissipation cavity, and heat dissipation fans are installed in the middles of the left side and the right side of the heat dissipation cavity at equal intervals. When the casting production device for valve casting is used, a formed valve can be subjected to mold stripping treatment conveniently and rapidly, and the cooling speed of a model is increased in a water cooling and air cooling mode.

Description

Technical Field

[0001] The utility model relates to the technical field related to valve casting, in particular to a casting production device for valve casting. Background Art

[0002] Valves are important fluid control equipment in industrial production. The casting process has an important impact on the quality and performance of the product. The research and development of casting production equipment for valve casting has also received more and more attention. The main purpose of this production device is to improve the quality and precision of castings, shorten the production cycle, and reduce production costs. In the production process of valve casting, the production device can realize the automated production and quality control of castings, reduce labor intensity and errors in human operation;

[0003] A valve casting production device disclosed in publication number CN220239985U pours raw materials into a concave mold, starts a hydraulic lift to lower the punch and merge with the concave mold, starts a water pump to pump condensate inside the groove into a pipeline and then pours it into the water inlet from the outlet pipe, and the condensate flows inside the inner cooling channel to fully cool the cavity, thereby improving the cooling efficiency of the raw materials, and with the continuous pumping of the water pump, the condenser circulates to increase the cooling speed. After cooling, the punch is raised, the drive motor is started to rotate the drive gear, and the transmission gear and the drive gear are driven under meshing action so that the L-shaped bracket and the concave mold are turned over with the center of the circle of the transmission gear as the axis, and then a tool is used to knock the rubber block, and the rubber block hits the bottom cavity under the force, and the force is transmitted to the cavity to make the concave mold vibrate, and a gap is formed between the valve and the cavity for demolding;

[0004] However, the above scheme still has the following problems during use: when in use, the cavity is cooled by water circulation, and the cooling method is single; and when demolding, the mold is knocked with the help of tools to generate vibration. In this process, power equipment needs to be installed for driving, which consumes a lot of energy and is not convenient for self-assisted demolding during the pouring process.

[0005] Therefore, we propose a casting production device for valve casting to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the utility model is to provide a casting production device for valve casting, so as to solve the problem that the existing casting production device for valve casting on the market currently proposed in the above background technology, when in use, the cavity is cooled by water circulation, the cooling method is single, and then when demolding, the mold is knocked with the help of tools to generate vibration. In this process, power equipment needs to be installed for driving, which consumes a lot of energy and is not convenient for self-assisted demolding during the casting process.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a casting production device for valve casting, comprising a lower mold, an upper mold is arranged on the top of the lower mold, a casting port is opened in the middle of the top surface of the upper mold, and a mold cavity is opened in the middle of the top surface of the lower mold, and a telescopic rod is installed between the lower mold and the upper mold;

[0008] The inner side of the bottom of the lower mold has a rotating rod connected to the bearing on the left and right sides, and the middle part of the rotating rod is connected to the screw through a bevel gear connector, and the screw is threadedly connected to a demolding plate, and the demolding plate penetrates and slides on the inner bottom of the mold cavity in a sealed fit;

[0009] A cavity is provided on the inner side of the bottom of the lower mold, and knocking rods are slidably connected to the cavity at equal intervals, and the cavity is located below the mold cavity;

[0010] A heat dissipation cavity is provided at the inner top of the lower mold, and the heat dissipation cavity surrounds the outer side of the mold cavity, and a cooling pipe is laid on the inner wall of the heat dissipation cavity, and heat dissipation fans are installed at equal intervals in the middle of the left and right sides of the heat dissipation cavity.

[0011] Preferably, pull ropes are symmetrically fixed to the bottom of the left and right sides of the upper mold, and the bottom of the pull ropes are wrapped around the left and right ends of the rotating rod, and a torsion spring is installed between the rotating rod and the lower mold, and the rotating rod drives the demolding mold plate through a screw to form a vertical sliding structure, and the demolding mold plate as a whole is set to a "T" shape structure.

[0012] Preferably, the outer side of the rotating rod is integrally mounted with a first magnetic block and a second magnetic block, and the magnetic poles of the first magnetic block and the second magnetic block are opposite, and the first magnetic block and the second magnetic block are grouped and equidistantly spaced on the outer side of the rotating rod.

[0013] Preferably, the first magnetic block and the second magnetic block on the outside of the rotating rod intermittently contact the bottom of the knocking rod, and a third magnetic block is integrally installed at the bottom of the knocking rod, and the magnetic poles of the third magnetic block are the same as those of the first magnetic block, and the knocking rod forms a sliding impact structure with the cavity through the first magnetic block, the second magnetic block and the third magnetic block.

[0014] Preferably, the heat dissipation cavity is configured as a rectangular ring structure, and the head and tail ends of the cooling pipes laid in the heat dissipation cavity are respectively connected to a water tank and a water pump, and the water tank and the water pump are both installed on the front side of the lower mold, and a semiconductor refrigeration plate is installed on the top of the water tank, and the water tank is connected to the water pump.

[0015] Preferably, drive fans are connected to the sealed bearings at equal intervals on the left and right sides of the cooling tube, and a heat dissipation fan is integrally installed on the outer side of the drive fan.

[0016] Preferably, the driving fan is cooled by a driving fan air-cooling heat dissipation structure, and heat dissipation holes are provided at equal intervals between the left and right sides of the heat dissipation cavity and the lower mold.

[0017] Compared with the prior art, the casting production device for valve casting of the utility model has the following beneficial effects: when in use, the molded valve can be conveniently and quickly demolded, and the cooling speed of the model can be accelerated by water cooling and air cooling. The specific contents are as follows:

[0018] 1. Through the setting of the rotating rod and the ejection plate, when the mold is opened after the valve is cast, the molded model can be automatically pushed out, and the ejection operation can be completed without the help of external equipment, with low energy consumption and convenient ejection. After the pull rope drives the rotating rod to rotate, the rotating rod will drive the screw to rotate through the bevel gear connector. After the screw rotates, it will drive the ejection plate to slide vertically in the mold cavity, and then the model will be automatically ejected;

[0019] 2. By setting the knocking rod, the mold cavity can be vibrated when demolding, thereby reducing the resistance during demolding and improving the demolding efficiency;

[0020] Furthermore, after the rotating rod rotates, it will drive the first magnetic block and the second magnetic block to overlap with the third magnetic block intermittently, so that the knocking rod slides vertically under the action of repulsive force and adsorption force, thereby striking the inner cavity, and the vibration will be directly transmitted to the mold cavity;

[0021] 4. Through the setting of cooling pipes and water tanks, and then through the flow of cooling water in the cooling pipes, the heat loss of the mold cavity is accelerated, thereby improving the cooling and molding effect of the model. After the water pump pumps the water, the cooling water will circulate, and the semiconductor refrigeration sheet on the water tank can continuously cool the used cooling water, thereby achieving the effect of water cooling;

[0022] Furthermore, the cooling water in the cooling pipe will drive the driving fan to rotate after flowing, and the driving fan will drive the outer cooling fan to rotate. When the cooling fan rotates, wind will be generated and then discharged from the cooling holes, thereby performing air cooling and heat dissipation, thereby improving the cooling and molding efficiency of the model. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the overall front section structure of the utility model;

[0025] Figure 3 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0026] Figure 4 For this utility model Figure 2 The enlarged structural diagram at B in the middle;

[0027] Figure 5This is a schematic diagram of the three-dimensional structure of the rotating rod, the screw rod and the knocking rod of the utility model;

[0028] Figure 6 For this utility model Figure 2 The enlarged structural diagram at C in the middle;

[0029] Figure 7 It is a schematic diagram of the internal top-sectional structure of the lower mold of the utility model.

[0030] In the figure: 1. lower mold; 2. upper mold; 3. casting port; 4. mold cavity; 5. telescopic rod; 6. pull rope; 7. rotating rod; 8. torsion spring; 9. screw; 10. demolding plate; 11. first magnetic block; 12. second magnetic block; 13. cavity; 14. knocking rod; 15. third magnetic block; 16. heat dissipation cavity; 17. heat dissipation hole; 18. cooling pipe; 19. water tank; 20. semiconductor refrigeration plate; 21. water pump; 22. driving fan; 23. cooling fan. DETAILED DESCRIPTION

[0031] 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.

[0032] Embodiment 1: In order to solve the problem that the existing valve casting production device is not convenient for the model to be easily removed during use, the following solution is proposed. Please refer to Figure 1-Figure 5 As shown,

[0033] It includes a lower mold 1, and an upper mold 2 is arranged on the top of the lower mold 1, and a casting port 3 is opened in the middle of the top surface of the upper mold 2, and a mold cavity 4 is opened in the middle of the top surface of the lower mold 1, and a telescopic rod 5 is installed between the lower mold 1 and the upper mold 2; the inner side of the bottom of the lower mold 1 is connected with a rotating rod 7 through the bearing on the left and right sides, and the middle part of the rotating rod 7 is connected to the screw 9 through a bevel gear connector, and a demolding plate 10 is threadedly connected on the screw 9, and the demolding plate 10 penetrates and slides on the inner bottom of the mold cavity 4 in a sealed fit, and the bottom of the left and right sides of the upper mold 2 are symmetrically fixed with a pull rope 6, and the bottom of the pull rope 6 is wound around the left and right ends of the rotating rod 7, and a torsion spring 8 is installed between the rotating rod 7 and the lower mold 1, and the rotating rod 7 drives the demolding plate 10 through the screw 9 to form a vertical sliding structure, and the demolding plate 10 is set as a whole. The T"-shaped structure, when in use, the telescopic rod 5 drives the upper mold 2 to move down and close the mold with the lower mold 1, and then the casting liquid is poured into the casting port 3 of the upper mold 2, and the casting liquid will flow into the mold cavity 4 for casting and molding, and then after the model is cooled and formed, the telescopic rod 5 drives the upper mold 2 to move and open the mold, and the upper mold 2 will pull the pull rope 6 after moving, and the pull rope 6 will drive the rotating rod 7 to rotate, and then reverse the torsion spring 8, and after the rotating rod 7 rotates, it will drive the screw rod 9 to rotate synchronously through the bevel gear connector, and after the screw 9 rotates, it will drive the ejection plate 10 to move up in the mold cavity 4, so that the molded model is automatically pushed out, improving the ejection efficiency, and when the mold is closed again, the pull rope 6 is relaxed, and the torsion spring 8 will drive the rotating rod 7 to rotate, so that the screw 9 drives the ejection plate 10 to move down and reset, which is convenient for the next use.

[0034] Embodiment 2: In order to solve the problem of large resistance when the casting production device for valve casting is used, the following solution is proposed. Please refer to Figure 2 and Figure 4-Figure 5 As shown,

[0035] A cavity 13 is provided on the inner side of the bottom of the lower mold 1, and a knocking rod 14 is slidably connected to the cavity 13 at equal intervals, and the cavity 13 is located below the mold cavity 4, and a first magnetic block 11 and a second magnetic block 12 are integrally installed on the outer side of the rotating rod 7, and the magnetic poles of the first magnetic block 11 and the second magnetic block 12 are opposite, and the first magnetic block 11 and the second magnetic block 12 are grouped and equidistantly arranged on the outer side of the rotating rod 7, and the first magnetic block 11 and the second magnetic block 12 on the outer side of the rotating rod 7 are intermittently in contact with the bottom of the knocking rod 14, and a third magnetic block 15 is integrally installed on the bottom of the knocking rod 14, and the third magnetic block 15 is in contact with the first magnetic block 11. The magnetic poles are the same, and the knocking rod 14 forms a sliding impact structure with the cavity 13 through the first magnetic block 11, the second magnetic block 12 and the third magnetic block 15. When the rotating rod 7 rotates, the first magnetic block 11 and the second magnetic block 12 on the outside will be driven to rotate synchronously, and the first magnetic block 11 and the second magnetic block 12 will intermittently overlap with the third magnetic block 15 at the bottom of the knocking rod 14, so that the knocking rod 14 is driven to slide vertically under the action of magnetic repulsion and magnetic attraction, and then hit the top of the cavity 13. The vibration generated by the impact will be directly transmitted to the mold cavity 4, thereby reducing the resistance between the model and the mold cavity 4 when demolding.

[0036] Embodiment 3: In order to improve the cooling efficiency of the model during use of the casting production device for valve casting, the following solution is proposed. For details, please refer to Figure 1-Figure 2 and Figure 6-Figure 7 As shown,

[0037] A heat dissipation cavity 16 is provided at the inner top of the lower mold 1, and the heat dissipation cavity 16 surrounds the outer side of the mold cavity 4, and a cooling pipe 18 is laid on the inner wall of the heat dissipation cavity 16, and heat dissipation fans 23 are installed at equal intervals in the middle of the left and right sides of the heat dissipation cavity 16, and the heat dissipation cavity 16 is set as a rectangular ring structure, and the head and tail ends of the cooling pipe 18 laid in the heat dissipation cavity 16 are respectively connected to the water tank 19 and the water pump 21, and the water tank 19 and the water pump 21 are both installed on the front side of the lower mold 1, and a semiconductor refrigeration sheet 20 is installed on the top of the water tank 19, and the water tank 19 is connected to the water pump 21. During the cooling of the model, the water pump 21 is turned on, and the water pump 21 will circulate the cooling water in the cooling pipe 18 inside the heat dissipation cavity 16. After the water in the cooling pipe 18 flows into the water tank 19, the water tank 19 will continuously cool the used cooling water through the semiconductor refrigeration sheet 20, thereby maintaining the water cooling effect;

[0038] Please refer to Figure 1-Figure 2 and Figure 6-Figure 7As shown, a driving fan 22 is connected to the sealed bearing at equal intervals on the left and right sides of the cooling tube 18, and a heat dissipation fan 23 is integrally installed on the outside of the driving fan 22. The heat dissipation fan 23 is cooled by the driving fan 22 through an air-cooled heat dissipation structure, and heat dissipation holes 17 are provided at equal intervals between the left and right sides of the heat dissipation cavity 16 and the lower mold 1. When water in the cooling tube 18 flows, it will impact the driving fan 22, and then the driving fan 22 will rotate and drive the outer heat dissipation fan 23 to rotate synchronously. When the heat dissipation fan 23 rotates, the heat will be discharged from the heat dissipation holes 17, thereby achieving an air-cooling cooling effect, thereby further improving the model cooling efficiency.

Claims

1. A casting production device for valve casting, comprising a lower mold (1), wherein an upper mold (2) is arranged on the top of the lower mold (1), a casting port (3) is opened in the middle of the top surface of the upper mold (2), and a mold cavity (4) is opened in the middle of the top surface of the lower mold (1), and a telescopic rod (5) is installed between the lower mold (1) and the upper mold (2); Features: The bottom inner side of the lower mold (1) is connected to a rotating rod (7) through bearings on the left and right sides, and the middle part of the rotating rod (7) is connected to a screw rod (9) through a bevel gear connector, and a demolding plate (10) is threadedly connected to the screw rod (9), and the demolding plate (10) penetrates and slides on the inner bottom of the mold cavity (4) in a sealed fit; A cavity (13) is provided on the inner side of the bottom of the lower mold (1), and knocking rods (14) are slidably connected to the cavity (13) at equal intervals, and the cavity (13) is located below the mold cavity (4); A heat dissipation cavity (16) is provided at the inner top of the lower mold (1), and the heat dissipation cavity (16) surrounds the outer side of the mold cavity (4), and a cooling pipe (18) is laid on the inner wall of the heat dissipation cavity (16), and heat dissipation fans (23) are installed at equal intervals in the middle of the left and right sides of the heat dissipation cavity (16).

2. The casting production device for valve casting according to claim 1, characterized in that: Pull ropes (6) are symmetrically fixed to the bottom of the left and right sides of the upper mold (2), and the bottom of the pull ropes (6) is wound around the left and right ends of the rotating rod (7), and a torsion spring (8) is installed between the rotating rod (7) and the lower mold (1), and the rotating rod (7) drives the ejection mold plate (10) through the screw rod (9) to form a vertical sliding structure, and the ejection mold plate (10) is set as a "T"-shaped structure as a whole.

3. The casting production device for valve casting according to claim 1, characterized in that: A first magnetic block (11) and a second magnetic block (12) are integrally mounted on the outer side of the rotating rod (7), the magnetic poles of the first magnetic block (11) and the second magnetic block (12) are opposite, and the first magnetic block (11) and the second magnetic block (12) are arranged in groups at equal intervals on the outer side of the rotating rod (7).

4. The casting production device for valve casting according to claim 3 is characterized in that: The first magnetic block (11) and the second magnetic block (12) on the outer side of the rotating rod (7) intermittently contact the bottom of the knocking rod (14), and the bottom of the knocking rod (14) is integrally installed with a third magnetic block (15), and the third magnetic block (15) has the same magnetic pole as the first magnetic block (11), and the knocking rod (14) forms a sliding impact structure with the cavity (13) through the first magnetic block (11), the second magnetic block (12) and the third magnetic block (15).

5. The casting production device for valve casting according to claim 1, characterized in that: The heat dissipation cavity (16) is configured as a rectangular ring structure, and the head and tail ends of the cooling pipe (18) laid in the heat dissipation cavity (16) are respectively connected to a water tank (19) and a water pump (21), and the water tank (19) and the water pump (21) are both installed on the front side of the lower mold (1), and a semiconductor cooling plate (20) is installed on the top of the water tank (19), and the water tank (19) is connected to the water pump (21).

6. The casting production device for valve casting according to claim 5, characterized in that: The left and right sides of the cooling pipe (18) are evenly spaced and penetrate the sealed bearings to be connected with a driving fan (22), and a heat dissipation fan (23) is integrally installed on the outer side of the driving fan (22).

7. A casting production device for valve casting according to claim 6, characterized in that: The driving fan (22) is provided with an air-cooled heat dissipation structure through the driving fan (22), and heat dissipation holes (17) are provided at equal intervals between the left and right sides of the heat dissipation cavity (16) and the lower mold (1).

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