Casting mold of valve body casting

Abstract

The utility model discloses a casting mold of a valve body casting, which comprises a fixed mold plate and a cooling mechanism, a movable mold plate is vertically connected among the outer cambered surfaces of four guide posts of the fixed mold plate in a sliding manner; the cooling mechanism comprises a cooling tank, confluence tanks, drainage holes and blocking balls, the cooling tank is arranged at the lower end of the interior of the fixed mold plate, the confluence tanks are arranged at the left end and the right end of the fixed mold plate respectively, the drainage holes are formed in the bottom wall of the cooling tank, and the blocking balls moving along with temperature changes are slidably connected into the drainage holes. According to the casting mold for the valve body casting, opening and closing of the water drainage holes are controlled through temperature changes, so that cooling liquid absorbing enough heat leaves the cooling groove through the water drainage holes in time, it is guaranteed that heat in the casting mold is rapidly absorbed by the cooling liquid, and the cooling efficiency of the casting mold is improved; and the production of the valve body casting is quicker.

Description

Technical Field

[0001] This utility model relates to the field of valve body casting technology, specifically a casting mold for valve body casting. Background Technology

[0002] Valve body castings are parts formed by melting metal, pouring it into a mold, and then cooling and solidifying it. Valve body castings play a crucial role in valve manufacturing, and their quality directly affects the valve's performance and service life. They are widely used in various valves and are suitable for various industrial pipelines and systems to control fluid flow and pressure. The production process of valve body castings requires the use of casting molds to shape the castings. In the existing technology, authorized publication number CN 219464706... U proposes a casting mold, including a base, a first shell, and a second shell. A connecting mechanism is provided between the first and second shells to restrict their connection. The second shell has a cavity, and a placement platform is fixedly welded into the cavity. A cast iron mold is placed on the placement platform. The first shell has a placement groove, and a trapezoidal chamber is fixedly installed in the placement groove. The other end of the trapezoidal chamber is connected to two bellows, both of which extend to the outside of the first shell and are located directly above the cast iron mold. Although valve body castings can be poured, during the cooling process of the casting, the coolant that has absorbed enough heat cannot leave the cooling groove in time, resulting in a reduction in cooling effect and affecting the cooling efficiency of the casting mold. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a casting mold for valve body castings. By controlling the opening and closing of the drain hole through temperature changes, the coolant that has absorbed enough heat can leave the cooling tank in time through the drain hole, ensuring that the coolant can quickly absorb the heat inside the casting mold, improving the cooling efficiency of the casting mold, and making the production of valve body castings faster. This can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a casting mold for a valve body casting, including a fixed template, a movable template vertically slidably connected between the outer arc surfaces of the four guide columns of the fixed template, and a cooling mechanism;

[0005] Cooling mechanism: It includes a cooling tank, a manifold, a drain hole, and a baffle ball. The cooling tank is located at the lower end of the interior of the fixed template. The manifolds are located at the left and right ends of the fixed template. The bottom wall of the cooling tank is provided with a drain hole. The drain hole is slidably connected to a baffle ball that moves with temperature changes. The drain hole is connected to the adjacent manifold. The opening and closing of the drain hole is controlled by temperature changes, so that the coolant that has absorbed enough heat can leave the cooling tank in time through the drain hole. This ensures that the coolant can quickly absorb heat inside the casting mold, improve the cooling efficiency of the casting mold, and make the production of valve body castings faster.

[0006] Furthermore, the cooling mechanism also includes a chute, a slide plate, and a slide column. The chute is respectively disposed on the top wall of the cooling tank. The slide plate is slidably connected inside the chute. The lower surface of the slide plate is provided with a slide column. The slide column passes through the inside of the chute and is fixedly connected to the adjacent baffle ball. The upper surface of the slide plate and the top wall of the chute are filled with air to provide power for the movement of the baffle ball.

[0007] Furthermore, the cooling mechanism also includes a water inlet tank, which is located in the middle of the fixed template and is connected to the middle of the cooling tank. The cooling tank is an arc-shaped tank, and its left and right ends are respectively connected to adjacent confluence tanks to facilitate the entry of coolant into the cooling tank.

[0008] Furthermore, the outer arc surface of the sliding column is provided with a sealing gasket, which contacts the inner wall of the sliding groove to seal the sliding column and the sliding groove.

[0009] Furthermore, the rear inner wall of the manifold is provided with drainage holes, and the bottom wall of the manifold is sloped to facilitate the discharge of coolant.

[0010] Furthermore, a baffle is slidably connected to the upper end of the water inlet tank. The surface of the baffle is provided with water inlet hole one, and the top wall of the water inlet tank is provided with water inlet hole two. Water inlet hole two and water inlet hole one are longitudinally spaced apart. Water inlet hole two is connected to the middle of the cooling tank, so as to control the coolant to enter the cooling tank evenly in the longitudinal direction.

[0011] Furthermore, the rear inner wall of the water inlet trough is provided with a support column, the vertical plate at the rear end of the baffle is longitudinally slidably connected to the support column, and a spring is provided between the vertical plate of the baffle and the rear inner wall of the water inlet trough. The spring is movably sleeved on the outer arc surface of the support column to provide elastic limit for the baffle.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The casting mold for this valve body casting has the following advantages:

[0013] By controlling the opening and closing of the drain hole through temperature changes, the coolant that has absorbed enough heat can leave the cooling tank in a timely manner through the drain hole, ensuring that the coolant can quickly absorb heat inside the casting mold, improving the cooling efficiency of the casting mold, and making the production of valve body castings faster. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a structural schematic diagram of the cooling mechanism of this utility model in frontal cross-section;

[0016] Figure 3 This is an enlarged structural diagram of point A in this utility model;

[0017] Figure 4 This is a schematic diagram of the side cross-section of the baffle of this utility model.

[0018] In the diagram: 1 Fixed template, 2 Moving template, 3 Water inlet hole 2, 4 Cooling mechanism, 41 Water inlet tank, 42 ​​Cooling tank, 43 Manifold, 44 Drain hole, 45 Slide groove, 46 Slide plate, 47 Slide column, 48 Baffle ball, 5 Sealing gasket, 6 Drain hole, 7 Baffle, 8 Water inlet hole 1, 9 Support column, 10 Spring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4 This embodiment provides a technical solution: a casting mold for a valve body casting, including a fixed template 1, a movable template 2 vertically slidably connected between the outer arc surfaces of the four guide pillars of the fixed template 1, the fixed template 1 and the movable template 2 adopt the fixed mold and movable mold commonly used in the prior art, the fixed template 1 and the movable template 2 are closed to form a mold cavity that constitutes the shape of the casting, the molten casting liquid is injected into the mold cavity formed by the combination of the fixed template 1 and the movable template 2, so that the molten casting liquid is cooled into the casting inside the mold cavity, and a cooling mechanism 4 is also included;

[0021] Cooling mechanism 4 includes a cooling tank 42, a manifold 43, a drain hole 44, and baffles 48. The cooling tank 42 is located at the lower end of the fixed template 1. The manifolds 43 are located at the left and right ends of the fixed template 1. The bottom wall of the cooling tank 42 is provided with drain holes 44. Each drain hole 44 is slidably connected to a baffle 48 that moves with temperature changes. The drain holes 44 are connected to adjacent manifolds 43. Cooling mechanism 4 also includes a sliding groove 45, a sliding plate 46, and a sliding column 47. The sliding groove 45 is located on the top wall of the cooling tank 42. Each sliding groove 45 is slidably connected to a sliding plate 46. Each sliding plate 46 has a sliding column 47 on its lower surface. The sliding column 47 extends out of the sliding groove 45 and is fixedly connected to the adjacent baffle 48. The upper surface of the sliding plate 46... Air is filled between the upper surface of the slide plate 46 and the top wall of the slide groove 45. During cooling, the air temperature between the upper surface of the slide plate 46 and the top wall of the slide groove 45 rises due to the heating of the casting liquid inside the mold cavity. The air volume expands, pushing the slide plate 46 and the slide column 47 downwards, causing the stop ball 48 to move down and leave the drain hole 44. The drain hole 44 opens, and as the coolant flows along the interior of the cooling tank 42, it absorbs heat from the interior of the mold cavity. The coolant, after absorbing heat, will be discharged from the nearby drain hole 44 into the manifold 43 in a timely manner. As the coolant absorbs heat, the temperature of the air inside the slide groove 45 gradually decreases, and its volume contracts. The pressure between the top wall of the slide groove 45 and the upper surface of the slide plate 46 decreases. Under the action of the pressure difference, the slide plate 46 is pulled. The ball stop 48 moves upward, and when the air temperature in the slide 45 reaches the specified range, the ball stop 48 blocks the drain hole 44 to prevent unheated coolant from leaving the cooling tank 42, thus improving the cooling effect. The cooling mechanism 4 also includes a water inlet 41, which is located in the middle of the fixed template 1 and is connected to the middle of the cooling tank 42. The cooling tank 42 is an arc-shaped groove, and its left and right ends are connected to the adjacent confluence trough 43. The outer arc surface of the sliding column 47 is provided with sealing gaskets 5, which contact the inner wall of the slide 45 to seal the connection between the sliding column 47 and the slide 45. The rear inner wall of the confluence trough 43 is provided with drain holes 6, and the bottom wall of the confluence trough 43 is inclined, which facilitates the confluence of water. The coolant in the tank 43 is discharged from the drain hole 6. A baffle 7 is slidably connected to the upper end of the inlet tank 41. The surface of the baffle 7 is provided with inlet holes 8. The top wall of the inlet tank 41 is provided with inlet holes 3. The inlet holes 3 and 8 are longitudinally spaced apart. The inlet holes 3 are all connected to the middle of the cooling tank 42. A support column 9 is provided on the rear inner wall of the inlet tank 41. The vertical plate at the rear end of the baffle 7 is slidably connected to the support column 9. A spring 10 is provided between the vertical plate of the baffle 7 and the rear inner wall of the inlet tank 41. The spring 10 is movably sleeved on the outer arc surface of the support column 9. When the coolant enters the inlet tank 41, the inlet holes 3 and 8 are misaligned, preventing the coolant from leaving the inlet tank 41. When the inlet tank 41 is completely filled with coolant, under the action of water pressure...Overcoming the elastic force of spring 10, the baffle 7 is pushed backward. When inlet hole 2 3 and inlet hole 1 8 coincide, the coolant enters the cooling tank 42 through inlet hole 2 3, ensuring a more uniform longitudinal distribution of the coolant.

[0022] The working principle of the casting mold for a valve body casting provided by this utility model is as follows: During the casting process of the valve body casting, molten casting liquid is injected into the mold cavity formed by the combination of fixed mold plate 1 and moving mold plate 2. After the molten casting liquid is injected, coolant enters the water inlet tank 41. At this time, water inlet hole 2 3 and water inlet hole 1 8 are misaligned, preventing the coolant from leaving the water inlet tank 41. At the same time, under the heating of the casting liquid inside the mold cavity, the air temperature between the upper surface of the slide plate 46 and the top wall of the slide groove 45 increases, and the air volume expands, pushing the slide plate 46 and slide column 47 downward, causing the baffle ball 48 to move down and leave the drain hole 44, opening the drain hole 44. When the water inlet tank 41 is completely filled with coolant, under the action of water pressure, it overcomes the elastic force of the spring 10 and pushes the baffle 7 backward. When water inlet hole 2 3 and water inlet hole 1 8 coincide, the coolant flows through water inlet hole 2 3. The coolant enters the cooling tank 42, ensuring a more uniform longitudinal distribution. The coolant then flows along the interior of the cooling tank 42, absorbing heat from the mold cavity. At this time, the air temperature inside the chute 45 is relatively high, resulting in a greater heat absorption by the coolant. After absorbing sufficient heat, the coolant is promptly discharged from the nearby drain hole 44 into the manifold 43. As the coolant absorbs heat, the air temperature inside the chute 45 gradually decreases, causing the volume to shrink. Under the pressure difference, this pulls the slide plate 46 and the baffle ball 48 upwards. When the air temperature inside the chute 45 reaches a specified range, the baffle ball 48 blocks the drain hole 44. At this point, the air temperature inside the chute 45 is lower, and the temperature difference is smaller, preventing coolant that has not absorbed sufficient heat from leaving the cooling tank 42, thus improving the cooling effect and allowing the molten casting liquid to cool and solidify into a casting inside the mold cavity.

[0023] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A casting mold for a valve body casting, comprising a fixed template (1), wherein a movable template (2) is vertically slidably connected between the outer arc surfaces of four guide pillars of the fixed template (1), characterized in that: It also includes a cooling mechanism (4); Cooling mechanism (4): It includes a cooling tank (42), a confluence channel (43), a drain hole (44) and a baffle ball (48). The cooling tank (42) is located at the lower end of the interior of the fixed template (1). The confluence channels (43) are located at the left and right ends of the fixed template (1). The bottom wall of the cooling tank (42) is provided with drain holes (44). The drain holes (44) are all slidably connected with baffle balls (48) that move with temperature changes. The drain holes (44) are connected to the adjacent confluence channels (43).

2. The casting mold for a valve body casting according to claim 1, characterized in that: The cooling mechanism (4) further includes a chute (45), a slide plate (46), and a slide column (47). The chute (45) is respectively disposed on the top wall of the cooling tank (42). The slide plate (46) is slidably connected inside the chute (45). The slide column (47) is provided on the lower surface of the slide plate (46). The slide column (47) passes through the interior of the chute (45) and is fixedly connected to the adjacent baffle ball (48). Air is filled between the upper surface of the slide plate (46) and the top wall of the chute (45).

3. The casting mold for a valve body casting according to claim 1, characterized in that: The cooling mechanism (4) also includes a water inlet trough (41), which is located in the middle of the fixed template (1). The water inlet trough (41) is connected to the middle of the cooling trough (42). The cooling trough (42) is an arc-shaped trough, and the left and right ends of the cooling trough (42) are connected to the adjacent confluence trough (43) respectively.

4. The casting mold for a valve body casting according to claim 2, characterized in that: The outer arc surface of each sliding column (47) is provided with a sealing gasket (5), and the sealing gasket (5) is in contact with the inner wall of the sliding groove (45).

5. The casting mold for a valve body casting according to claim 1, characterized in that: The rear inner wall of the manifold (43) is provided with drainage holes (6), and the bottom wall of the manifold (43) is all inclined.

6. The casting mold for a valve body casting according to claim 3, characterized in that: The upper end of the water inlet tank (41) is slidably connected to a baffle (7). The surface of the baffle (7) is provided with water inlet hole 1 (8). The top wall of the water inlet tank (41) is provided with water inlet hole 2 (3). Water inlet hole 2 (3) and water inlet hole 1 (8) are longitudinally spaced apart. Water inlet hole 2 (3) is connected to the middle of the cooling tank (42).

7. The casting mold for a valve body casting according to claim 6, characterized in that: The rear inner wall of the water inlet trough (41) is provided with a support column (9), the vertical plate at the rear end of the baffle (7) is longitudinally slidably connected to the support column (9), and a spring (10) is provided between the vertical plate of the baffle (7) and the rear inner wall of the water inlet trough (41). The spring (10) is movably sleeved on the outer arc surface of the support column (9).

Images