An energy-saving and consumption-reducing ball valve cover forging die

Abstract

This utility model discloses an energy-saving and consumption-reducing ball valve cover forging die, relating to the field of forging die technology. It includes a forging press, comprising an upper die and a lower die. The lower die has a drive cavity inside, and a slide rod is fixedly installed inside the drive cavity. Symmetrical movable frames are slidably mounted on both ends of the slide rod. Rotating arms are provided at both ends of the top of the movable frames. Symmetrical connecting rods are hinged to the rotating arms on the movable frames at both ends of the slide rod. The connecting rods are hinged to connecting arms, which are fixedly mounted at the bottom of a lifting plate. A rack is fixedly mounted inside the movable frame, meshing with a gear. The gear is rotatably mounted in the drive cavity via a rotating shaft. A pull rod is fixedly mounted on the movable frame at one end of the slide rod, with one end passing through the drive cavity and connected to a pull handle. This utility model drives the mechanical structure by manually pulling the pull handle, eliminating the need for electric motors, hydraulic pumps, and other electrical equipment, thus eliminating energy conversion losses during electric drive.

Description

Technical Field

[0001] This utility model relates to the field of forging die technology, specifically to an energy-saving and consumption-reducing ball valve cover forging die. Background Technology

[0002] In modern industrial systems, ball valves, as key fluid control components, are widely used in many fields such as petroleum, chemical, power, and energy. With the acceleration of global industrialization, the demand for ball valves in these industries continues to rise, thereby driving the continuous expansion of the market size for ball valve bonnet forgings. The demand for high-quality, high-performance ball valve bonnets is particularly significant in the infrastructure construction and traditional industry upgrading processes of some emerging economies.

[0003] In existing mold demolding technologies, some demolding processes rely on electric drive, such as using electric push rods or electro-hydraulic systems to open and close the mold and eject the forgings. However, electric drive systems are prone to lacking precise control mechanisms during operation, and even under no-load or low-load conditions, they still need to maintain high power operation, resulting in energy waste. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an energy-saving and consumption-reducing ball valve cover forging die, which solves the problem mentioned in the background technology that the electric drive system still needs to maintain high power operation under no-load or low-load conditions, resulting in energy waste.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an energy-saving and consumption-reducing ball valve cover forging die, comprising a forging press, the forging press including an upper die and a lower die, the lower die having a drive cavity inside, a slide rod fixedly installed inside the drive cavity, mutually symmetrical movable frames slidably installed on both ends of the slide rod, rotating arms being provided at both ends of the top of the movable frames, mutually symmetrical connecting rods being hinged to the rotating arms on the movable frames at both ends of the slide rod, the connecting rods being hinged to connecting arms, the connecting arms being fixedly installed at the bottom of a lifting plate, a rack being fixedly installed inside the movable frame, the rack meshing with a gear, the gear being rotatably installed in the drive cavity via a rotating shaft, a pull rod being fixedly installed on the movable frame at one end of the slide rod, one end of the pull rod passing through the drive cavity and connected to a pull handle.

[0006] Preferably, the movable frame has a through hole, which corresponds to a rack on another movable frame.

[0007] Preferably, the racks on the movable frames at both ends of the slide rod are arranged symmetrically around the gear, and the racks on the movable frames at both ends of the slide rod mesh with the gear.

[0008] Preferably, a retaining ring is fixedly provided in the middle of the slide rod.

[0009] Preferably, springs are connected to both sides of the fixing ring, and the springs are sleeved on the slide rod.

[0010] Preferably, the springs on both sides of the fixed ring are connected to the movable frames at both ends of the slide rod.

[0011] This utility model provides an energy-saving and consumption-reducing ball valve cover forging die. It has the following beneficial effects:

[0012] (1) This utility model drives the mechanical structure by manually pulling the handle, eliminating the need for electric motors, hydraulic pumps and other electrical equipment, thus eliminating energy conversion losses during electric drive. At the same time, it eliminates complex components such as motors, solenoid valves and oil pipes, retaining only mechanical parts such as gears, racks and slides, which facilitates maintenance and reduces energy and material consumption during maintenance.

[0013] (2) When the movable frame slides to both sides to demold, the spring is compressed and stores elastic potential energy; after demolding, the spring releases its potential energy and pushes the movable frame back to the direction of the fixed ring. The presence of the fixed ring ensures that the spring always maintains its central positioning during compression and release, avoids the spring from shifting or twisting when under force, and ensures the uniform transmission of the reset force. Attached Figure Description

[0014] Figure 1 This is a diagram showing the overall structure of the present utility model;

[0015] Figure 2 This utility model Figure 1 Internal structure diagram of the lower and middle mold;

[0016] Figure 3 This utility model Figure 2 Structural diagram of the middle slide bar;

[0017] Figure 4 This utility model Figure 3 Structural diagram of the mobile frame.

[0018] In the diagram, 1. Forging press; 2. Lower die; 21. Drive cavity; 22. Slide rod; 221. Fixing ring; 222. Spring; 23. Moving frame; 231. Rotating arm; 232. Rack; 233. Through hole; 24. Connecting rod; 25. Lifting plate; 251. Connecting arm; 26. Gear; 27. Rotating shaft; 28. Pull rod; 281. Pull handle; 3. Upper die. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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] Example 1: Please refer to Figures 1-4 This utility model provides an energy-saving and consumption-reducing ball valve cover forging die, including a forging press 1. The forging press 1 includes an upper die 3 and a lower die 2. The lower die 2 has a drive cavity 21 inside. A slide rod 22 is fixedly installed inside the drive cavity 21. Symmetrical movable frames 23 are slidably installed on both ends of the slide rod 22. Rotating arms 231 are provided at both ends of the top of the movable frames 23. Symmetrical connecting rods 24 are hinged to the rotating arms 231 on the movable frames 23 at both ends of the slide rod 22. The connecting rods 24 are hinged to the connecting arms 251. The connecting arms 251 are fixedly installed at the bottom of the lifting plate 25. A rack 232 is fixedly installed on the inner side of the movable frame 23. The rack 232 meshes with a gear 26. The gear 26 is rotatably installed in the drive cavity 21 through a rotating shaft 27. A pull rod 28 is fixedly installed on the movable frame 23 at one end of the slide rod 22. One end of the pull rod 28 passes through the drive cavity 21 and is connected to a pull handle 281.

[0021] The movable frame 23 has a through hole 233, which corresponds to the rack 232 on another movable frame 23.

[0022] The racks 232 on the moving frames 23 at both ends of the slide rod 22 are arranged symmetrically around the gear 26, and the racks 232 on the moving frames 23 at both ends of the slide rod 22 mesh with the gear 26.

[0023] A fixing ring 221 is fixedly installed in the middle of the slide bar 22.

[0024] Springs 222 are connected to both sides of the fixed ring 221, and the springs 222 are sleeved on the slide rod 22.

[0025] The springs 222 on both sides of the fixed ring 221 are connected to the movable brackets 23 on both ends of the slide rod 22.

[0026] Specifically, the blank of the ball valve cover is placed on the lower mold 2. At this time, the upper mold 3 is in the raised state. The moving frame 23 in the drive cavity 21 of the lower mold 2 is in the initial position under the action of the spring 222. The rotating arm 231, the connecting rod 24 and the lifting plate 25 are in the low position and will not affect the placement of the blank.

[0027] The forging press 1 is started, and the upper die 3 moves downward under the power drive of the forging press 1, gradually approaching and contacting the billet. As the upper die 3 continues to press down, the billet undergoes plastic deformation under the extrusion action of the upper die 3 and the lower die 2, gradually forming the shape of a ball valve cover. During this process, the lower die 2 remains fixed, providing stable support for the billet. The upper die 3 presses down to the set position, completing the forging of the billet and ensuring that the ball valve cover achieves the required size and shape accuracy. At this point, the upper die 3 stops pressing down and maintains stable pressure for a period of time to ensure the forming quality of the forging.

[0028] After forging is completed, the operator pulls the handle 281, which drives the pull rod 28, thereby pulling the movable frame 23 at one end of the slide rod 22 to slide on the slide rod 22. Since the racks 232 on both ends of the movable frame 23 of the slide rod 22 are engaged with the gears 26 and are symmetrically arranged around the gears 26, when one side of the movable frame 23 slides, the other side of the movable frame 23 will slide synchronously in the opposite direction through the transmission between the racks 232 and the gears 26.

[0029] As the two movable frames 23 slide, the rotating arm 231 at the top drives the connecting rod 24 to move. The connecting rod 24 pushes the lifting plate 25 upward through the connecting arm 251. Due to the design of the perforation 233 corresponding to the rack 232, the stability and accuracy of the sliding of the movable frame 23 are ensured, and the rack 232 is prevented from obstructing the movement of the movable frame 23. The lifting plate 25 smoothly pushes the formed ball valve cover out of the lower mold 2, completing the demolding operation.

[0030] After demolding, the pull handle 281 is released, and under the elastic force of the spring 222, the two moving frames 23 move and reset along the slide bar 22. The fixing ring 221 provides a fixed fulcrum for the spring 222, ensuring the stability of the spring 222 during compression and release. The moving frame 23, rotating arm 231, connecting rod 24, and lifting plate 25 return to their initial positions, ready for the next forging and demolding.

[0031] The entire demolding process is achieved by manually pulling the handle 281 and the mechanical transmission structure, without the need for electric drive. Compared with traditional electric or hydraulic demolding systems, it completely eliminates the energy consumption of equipment such as motors and hydraulic pumps, as well as related energy conversion losses, and significantly reduces energy consumption in the production process. The use of mechanical components such as gears 26, racks 232, and slide bars 22 reduces the use of complex electrical and hydraulic components, lowers the manufacturing cost of the equipment, reduces the number of failure points, improves the reliability and stability of the mold, and reduces the frequency and cost of maintenance.

[0032] Working principle: The ball valve cover blank is placed smoothly on the surface of the lower die 2, ensuring its accurate position. At this time, the upper die 3 is in the raised state, and the moving frame 23 in the drive cavity 21 of the lower die 2 is located at the initial position at both ends of the slide rod 22 under the elastic force of the spring 222. The rotating arm 231, connecting rod 24 and lifting plate 25 are in the low position, which will not interfere with the placement of the blank, thus preparing for subsequent forging.

[0033] The forging press 1 is started, and the upper die 3 moves downward vertically under the power drive of the forging press 1. The upper die 3 gradually approaches and contacts the billet. With continuous downward pressure, the billet undergoes plastic deformation under the extrusion force of the upper die 3 and the lower die 2. The lower die 2 remains fixed, providing stable support for the billet, so that the billet is gradually formed into the shape of a ball valve cover. When the set downward pressure position is reached, the upper die 3 stops pressing and maintains stable pressure for a period of time to ensure that the internal structure of the forging is fully compacted, achieving the required dimensional accuracy and shape requirements, thus completing the forging process.

[0034] After the forging process is completed, the operator manually pulls the handle 281, which drives the pull rod 28, and then pulls the movable frame 23 at one end of the slide rod 22. Since the racks 232 on both ends of the movable frame 23 of the slide rod 22 are meshed with the gears 26 and are arranged in a rotationally symmetrical manner, when one side of the movable frame 23 slides, the other side of the movable frame 23 will slide in the opposite direction synchronously through the transmission relationship between the racks 232 and the gears 26. While the two movable frames 23 slide, the rotating arm 231 at the top of them drives the connecting rod 24 to move, and the connecting rod 24 pushes the lifting plate 25 upward through the connecting arm 251. The design of the through holes 233 on the movable frame 23 corresponding to the racks 232 ensures the smoothness and accuracy of the sliding of the movable frame 23 and avoids motion interference. Finally, the lifting plate 25 smoothly pushes the formed ball valve cover out of the lower mold 2, completing the demolding operation.

[0035] After the demolding operation is completed, the operator releases the pull handle 281, and under the elastic force of the spring 222, the two movable frames 23 slide back to their original positions along the slide bar 22. As the movable frames 23 return to their original positions, the rotating arm 231, connecting rod 24, and lifting plate 25 also return to their initial positions, preparing for the next forging and demolding cycle.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An energy-saving and consumption-reducing ball valve cover forging press die, comprising a forging press (1), wherein the forging press (1) comprises an upper die (3) and a lower die (2), characterized in that: The lower mold (2) has a drive cavity (21) inside, and a slide rod (22) is fixedly installed inside the drive cavity (21). Symmetrical moving frames (23) are slidably installed on both ends of the slide rod (22). Rotating arms (231) are provided at both ends of the top of the moving frames (23). Symmetrical connecting rods (24) are hinged to the rotating arms (231) on the moving frames (23) at both ends of the slide rod (22). The connecting rods (24) are hinged to the connecting arms (251). The connecting arm (251) is fixedly installed at the bottom of the lifting plate (25). A rack (232) is fixedly installed on the inner side of the moving frame (23). The rack (232) meshes with the gear (26). The gear (26) is rotatably installed in the drive cavity (21) through the rotating shaft (27). A pull rod (28) is fixedly installed on the moving frame (23) at one end of the slide rod (22). One end of the pull rod (28) passes through the drive cavity (21) and is connected to the handle (281).

2. The energy saving and consumption reducing ball valve cover forging and pressing die according to claim 1, characterized in that: The movable frame (23) has a through hole (233) which corresponds to the rack (232) on another movable frame (23).

3. The energy saving and consumption reducing ball valve cover forging and pressing die according to claim 2, characterized in that: The racks (232) on the moving frames (23) at both ends of the slide rod (22) are symmetrically arranged around the gear (26), and the racks (232) on the moving frames (23) at both ends of the slide rod (22) are meshed with the gear (26).

4. The energy saving and consumption reducing ball valve cover forging and pressing die according to claim 3, characterized in that: A fixing ring (221) is fixedly provided in the middle of the slide bar (22).

5. The energy saving and consumption reducing ball valve cover forging and pressing die according to claim 4, characterized in that: Springs (222) are connected to both sides of the fixing ring (221), and the springs (222) are sleeved on the slide rod (22).

6. The energy saving and consumption reducing ball valve cover forging and pressing die according to claim 5, characterized in that: The springs (222) on both sides of the fixed ring (221) are connected to the movable frames (23) on both ends of the slide rod (22).

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