Pouring device for valve production

Abstract

The utility model discloses a pouring device for valve production, which comprises a base and a forming mechanism, and a lower die seat is arranged in the middle of the upper end of the base; the forming mechanism comprises connecting plates, fixing plates and mandrels, the connecting plates are slidably connected with sliding grooves formed in the lower side of the interior of the lower die base, the fixing plates are arranged at the ends, away from the center of the interior of the base, of the connecting plates, and the mandrels are arranged on the upper sides of the ends, close to the center of the interior of the base, of the fixing plates; according to the pouring device for valve production, the position of the core shaft can be adjusted, the traditional mode that the core shaft is mounted and dismounted through a positioning pin and a positioning block is replaced, and the production efficiency is improved. The problem that the positioning elements need to be contained by adjusting the structure of the mold or increasing extra space is solved, and the manufacturing cost of the mold is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of valve production equipment, specifically a casting device for valve production. Background Technology

[0002] The casting device for valve production is an important piece of equipment used in the valve production process to inject molten metal (such as molten iron, molten steel, etc.) into the mold to form valve castings. The casting device can ensure that the molten metal is filled into the mold cavity smoothly and orderly. During the filling process, it controls the flow direction and speed of the molten metal so that the molten metal can enter the cavity evenly and continuously, thereby avoiding damage to the mold, cavity and mandrel.

[0003] When the valve production casting device is in operation, the mandrel is usually fixed inside the mold using locating pins and locating blocks. Then, the upper mold seat and the lower mold seat are closed, and the external casting equipment injects molten metal into the mold through the casting pipe, so that the molten metal fills the gap between the forming tank and the mandrel, ensuring that the valve can form the correct internal channel during the forming process. After the casting work is completed, the valve production casting device is cooled by external cooling equipment. After cooling is completed, the upper mold seat and the lower mold seat are separated, and then the mandrel is disassembled. Finally, the operator can take out the cast valve.

[0004] Existing casting devices for valve production, while capable of installing and fixing the mandrel using locating pins and blocks, still require disassembly after the work is completed to remove the cast valve. This method is cumbersome and reduces casting efficiency. Furthermore, the locating pins and blocks occupy space in the mold, necessitating adjustments to the mold structure or the addition of extra space to accommodate these locating elements before operation, which increases mold manufacturing costs. Therefore, we propose a new casting device for valve production. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a casting device for valve production that can adjust the position of the mandrel, replacing the traditional method of installing and disassembling the mandrel through positioning pins and positioning blocks. This solves the problem of needing to adjust the structure of the mold or add extra space to accommodate these positioning elements, reduces the manufacturing cost of the mold, and can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a casting device for valve production, including a base, a lower mold seat provided in the middle of the upper end of the base, and a forming mechanism;

[0007] The forming mechanism includes a connecting plate, a fixing plate, and a mandrel. The connecting plate is slidably connected to a groove provided on the lower side of the lower mold base. A fixing plate is provided on the end of the connecting plate away from the center of the base. A mandrel is provided on the upper side of the end of the fixing plate close to the center of the base. The position of the mandrel can be adjusted, which replaces the traditional method of installing and disassembling the mandrel through positioning pins and positioning blocks. This solves the problem of needing to adjust the structure of the mold or add extra space to accommodate these positioning elements, and reduces the manufacturing cost of the mold.

[0008] Furthermore, it also includes a control switch assembly located outside the base. The input terminal of the control switch assembly is electrically connected to an external power supply and can regulate the electrical components inside the equipment.

[0009] Furthermore, the molding mechanism also includes a mounting rod, gears, and a rack plate. The mounting rod is rotatably connected to the middle of the top wall of the lower mold base. Gears are provided on both the upper and lower sides of the outer arc surface of the mounting rod. The rack plates are all located at the end of the connecting plate near the center of the base. The upper gears mesh with the longitudinally adjacent rack plates, which can adjust the position of the mandrel.

[0010] Furthermore, the forming mechanism also includes a mounting ring and an internal gear ring. The mounting ring is rotatably connected to the middle of the bottom wall of the lower mold base. An internal gear ring is provided in the middle of the inner arc surface of the mounting ring. The gears on the lower side are all meshed with the internal gear ring, and the rack plate can be moved by the gears on the upper side.

[0011] Furthermore, it also includes a worm gear and a worm. The worm gear is located in the middle of the outer arc surface of the mounting ring, and the worm is rotatably connected to the lower side of the left wall of the lower mold seat. The worm gear and the worm are meshed and connected, and can drive the internal gear ring to rotate through the mounting ring.

[0012] Furthermore, it also includes a motor, which is located on the front side of the left end of the lower mold base. The right end of the motor output shaft is fixedly connected to the left end of the worm gear, and the input end of the motor is electrically connected to the output end of the control switch group, so that the worm gear can drive the worm wheel to rotate.

[0013] Furthermore, it also includes uprights, electric push rods, and a pouring pipe. The uprights are respectively set at the four corners of the upper end of the base, and the upper ends of the uprights are fixedly connected to the lower end of the mounting plate. The electric push rods are respectively set on the front and rear sides of the lower end of the mounting plate, and the lower ends of the telescopic ends of the electric push rods are fixedly connected to the upper end of the upper mold base. The lower end of the upper mold base and the upper end of the lower mold base are both provided with forming grooves. The mandrel is located inside the forming groove on the lower side. The pouring pipe is set in the pouring port opened in the middle of the upper end of the upper mold base. The input end of the electric push rod is electrically connected to the output end of the control switch group, which can perform pouring work on the valve.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This casting device for valve production has the following advantages:

[0015] After the casting device for valve production has cooled down, the upper gear drives the rack plate to move through meshing. The rack plate then drives the mandrel to move through the connecting plate, separating the mandrel from the forming groove and the cast valve. This allows for adjustment of the mandrel's position, replacing the traditional method of installing and disassembling the mandrel using locating pins and blocks. This simplifies operation, improves casting efficiency, and solves the problem of needing to adjust the mold structure or add extra space to accommodate these locating elements, further reducing the mold manufacturing cost. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the right side of this utility model;

[0018] Figure 3 This is a schematic diagram of the upper sectional structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the molding mechanism of this utility model.

[0020] In the diagram: 1. Base, 2. Control switch assembly, 3. Lower mold base, 4. Upright rod, 5. Mounting plate, 6. Electric push rod, 7. Upper mold base, 8. Molding mechanism, 81. Connecting plate, 82. Fixing plate, 83. Mandrel, 84. Mounting ring, 85. Internal gear ring, 86. Mounting rod, 87. Gear, 88. Rack plate, 9. Worm gear, 10. Worm, 11. Motor, 12. Casting pipe. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4 This embodiment provides a technical solution: a casting device for valve production, including a base 1, a lower mold seat 3 is provided in the middle of the upper end of the base 1, and a forming mechanism 8;

[0023] Molding mechanism 8 includes a connecting plate 81, a fixing plate 82, and a mandrel 83. The connecting plate 81 is slidably connected to a groove provided on the lower side of the lower mold base 3. A fixing plate 82 is provided at the end of the connecting plate 81 away from the center of the base 1. A mandrel 83 is provided on the upper side of the end of the fixing plate 82 near the center of the base 1. Molding mechanism 8 also includes a mounting rod 86, gears 87, and rack plates 88. The mounting rod 86 is rotatably connected to the middle of the top wall of the lower mold base 3. Gears 87 are provided on both the upper and lower sides of the outer arc surface of the mounting rod 86. The rack plates 88 are provided at the end of the connecting plate 81 near the center of the base 1. The upper gears 87 mesh with the longitudinally adjacent rack plates 88. Molding mechanism 8 also includes a mounting rod 86, gears 87, and rack plates 88. The mounting ring 84 and the internal gear ring 85 are rotatably connected to the middle of the bottom wall of the lower mold base 3. The internal gear ring 85 is set in the middle of the inner arc surface of the mounting ring 84. The gears 87 on the lower side are all meshed with the internal gear ring 85. After the valve production casting device has cooled down, the upper gear 87 drives the rack plate 88 to move through the meshing connection. The rack plate 88 drives the mandrel 83 to move through the connecting plate 81, so that the mandrel 83 is separated from the molding groove and the cast valve. This replaces the traditional method of installing and disassembling the mandrel 83 through positioning pins and positioning blocks. The operation is simple and the casting efficiency is improved. It solves the problem of needing to adjust the structure of the mold or add extra space to accommodate these positioning elements.

[0024] It also includes a control switch group 2, which is located outside the base 1. The input terminal of the control switch group 2 is electrically connected to an external power supply and can regulate the electrical components inside the equipment.

[0025] The device also includes a worm gear 9 and a worm 10. The worm gear 9 is located in the middle of the outer arc surface of the mounting ring 84. The worm 10 is rotatably connected to the lower side of the left wall of the lower mold base 3. The worm gear 9 and the worm 10 are meshed together. The drive device drives the worm 10 to rotate. During the rotation, the worm 10 drives the worm gear 9 to rotate through the meshing connection. The worm gear 9 drives the internal gear ring 85 to rotate through the mounting ring 84.

[0026] The system also includes a motor 11, which is located on the front side of the left end of the lower mold base 3. The right end of the output shaft of the motor 11 is fixedly connected to the left end of the worm gear 10. The input end of the motor 11 is electrically connected to the output end of the control switch group 2. When the motor 11 starts running, the output shaft of the motor 11 drives the worm gear 10 to rotate. During the rotation, the worm gear 10 drives the worm wheel 9 to rotate through meshing connection. The worm wheel 9 drives the internal gear ring 85 to rotate through the mounting ring 84.

[0027] The system includes uprights 4, electric push rods 6, and a pouring pipe 12. Uprights 4 are located at the four corners of the upper end of the base 1, and their upper ends are fixedly connected to the lower end of the mounting plate 5. Electric push rods 6 are located on the front and rear sides of the lower end of the mounting plate 5, and their lower ends are fixedly connected to the upper end of the upper mold base 7. The lower end of the upper mold base 7 and the upper end of the lower mold base 3 are provided with forming grooves. The mandrel 83 is located inside the forming groove on the lower side. The pouring pipe 12 is located in the pouring port opened in the middle of the upper end of the upper mold base 7. The input end of the electric push rod 6 is electrically connected to the output end of the control switch group 2, connecting the external pouring equipment to the pouring pipe 12. The external pouring equipment injects the molten metal into the interior of the forming groove through the pouring pipe 12. During the injection process, the external pouring equipment applies a certain pressure to fill the gap between the forming groove and the mandrel 83 with the molten metal, ensuring that the valve can form the correct internal channel during the forming process.

[0028] The working principle of the casting device for valve production provided by this utility model is as follows: During the operation of the casting device for valve production, the electric push rod 6 starts to run by adjusting the control switch group 2. The telescopic end of the electric push rod 6 extends, thereby causing the electric push rod 6 to drive the upper mold seat 7 to move downward. Finally, the lower end of the upper mold seat 7 contacts the upper end of the lower mold seat 3. Then, by adjusting the control switch group 2, the motor 11 starts to run. The output shaft of the motor 11 drives the worm gear 10 to rotate. During the rotation, the worm gear 10 drives the worm wheel 9 to rotate through the meshing connection. The worm wheel 9 drives the worm wheel 9 through the mounting ring 84. The inner gear ring 85 rotates, driving the lower gear 87 to rotate via a meshing connection. The lower gear 87 drives the upper gear 87 to rotate via a mounting rod 86. The upper gear 87 drives the rack plate 88 to move via a meshing connection. The rack plate 88 drives the mandrel 83 to move via a connecting plate 81, causing the mandrel 83 to insert into the forming groove. Finally, the ends of the mandrel 83 closest to the center of the base 1 come into contact with each other. Then, the external casting equipment is connected to the casting pipe 12. The external casting equipment injects molten metal into the forming groove through the casting pipe 12. During the injection process... During the casting process, external casting equipment applies pressure to fill the gap between the forming tank and the mandrel 83 with molten metal, ensuring that the valve can form the correct internal channel during the forming process. After casting is completed, external cooling equipment cools the casting device used for valve production. After cooling, the motor 11 starts running through the control switch group 2. The output shaft of the motor 11 drives the worm gear 10 to rotate in reverse. During the rotation, the worm gear 10 drives the worm wheel 9 to rotate through meshing connection. The worm wheel 9 drives the internal gear ring 85 to rotate through the mounting ring 84. The internal gear ring 85 drives the lower side through meshing connection. The gear 87 rotates, and the lower gear 87 drives the upper gear 87 to rotate via the mounting rod 86. The upper gear 87 drives the rack plate 88 to move through meshing connection. The rack plate 88 drives the mandrel 83 to move through the connecting plate 81, so that the mandrel 83 is separated from the molding groove and the valve after casting. Then, through the regulation of the control switch group 2, the electric push rod 6 starts to run. The telescopic end of the electric push rod 6 shortens, so that the electric push rod 6 drives the upper mold seat 7 to move upward, so that the lower end of the upper mold seat 7 is separated from the upper end of the lower mold seat 3. Finally, the operator can take out the valve after casting.

[0029] It is worth noting that the electric push rod 6 disclosed in the above embodiments can be YRJ0905, the motor 11 can be 5IK200A-AF, and the control switch group 2 is provided with control buttons corresponding to the electric push rod 6 and the motor 11 for controlling their switching.

[0030] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, 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 device for valve production, comprising a base (1), wherein a lower mold seat (3) is provided at the middle of the upper end of the base (1), characterized in that: It also includes a forming mechanism (8); The forming mechanism (8) includes a connecting plate (81), a fixing plate (82) and a mandrel (83). The connecting plate (81) is slidably connected to the sliding groove provided on the lower side of the lower mold base (3). The connecting plate (81) is provided with a fixing plate (82) at the end away from the center of the base (1). The fixing plate (82) is provided with a mandrel (83) on the upper side of the end near the center of the base (1).

2. The casting apparatus for valve production according to claim 1, characterized in that: It also includes a control switch group (2), which is located outside the base (1) and the input end of the control switch group (2) is electrically connected to an external power supply.

3. The casting apparatus for valve production according to claim 2, characterized in that: The forming mechanism (8) also includes a mounting rod (86), a gear (87) and a rack plate (88). The mounting rod (86) is rotatably connected to the middle of the top wall of the lower mold base (3). Gears (87) are provided on both the upper and lower sides of the outer arc surface of the mounting rod (86). The rack plates (88) are all located at one end of the connecting plate (81) near the center of the base (1). The gears (87) on the upper side are meshed with the rack plates (88) that are longitudinally adjacent.

4. The casting apparatus for valve production according to claim 3, characterized in that: The forming mechanism (8) also includes a mounting ring (84) and an internal gear ring (85). The mounting ring (84) is rotatably connected to the middle of the bottom wall of the lower mold base (3). An internal gear ring (85) is provided in the middle of the inner arc surface of the mounting ring (84), and the gears (87) on the lower side are all meshed with the internal gear ring (85).

5. A casting apparatus for valve production according to claim 4, characterized in that: It also includes a worm wheel (9) and a worm (10). The worm wheel (9) is located in the middle of the outer arc surface of the mounting ring (84), and the worm (10) is rotatably connected to the lower side of the left wall of the lower mold base (3). The worm wheel (9) and the worm (10) are meshed together.

6. A casting apparatus for valve production according to claim 5, characterized in that: It also includes a motor (11), which is located on the front side of the left end of the lower mold base (3). The right end of the output shaft of the motor (11) is fixedly connected to the left end of the worm (10), and the input end of the motor (11) is electrically connected to the output end of the control switch group (2).

7. A casting apparatus for valve production according to claim 2, characterized in that: It also includes uprights (4), electric push rods (6) and pouring pipes (12). The uprights (4) are respectively set at the four corners of the upper end of the base (1). The upper ends of the uprights (4) are fixedly connected to the lower end of the mounting plate (5). The electric push rods (6) are respectively set on the front and rear sides of the lower end of the mounting plate (5). The lower ends of the telescopic ends of the electric push rods (6) are fixedly connected to the upper end of the upper mold base (7). The lower end of the upper mold base (7) and the upper end of the lower mold base (3) are both provided with forming grooves. The mandrel (83) is located inside the forming groove on the lower side. The pouring pipe (12) is set in the pouring port opened in the middle of the upper end of the upper mold base (7). The input end of the electric push rods (6) is electrically connected to the output end of the control switch group (2).

Images