A forging device for a globe valve seat

Abstract

The present invention relates to the technical field of valve forging, and more specifically discloses a forging device for a globe valve seat, which includes a support plate. The inner wall of the support plate is fixedly connected with a circulating track. A number of workstations are arranged around the support plate, and the workstations move cyclically under the limitation of the circulating track. A lower die is fixedly connected to each workstation. Two reinforcing frames are fixedly connected to the upper side of the support plate. Cylinders are fixedly connected to the tops of the two reinforcing frames. The extending ends of the two cylinders are both fixedly connected with upper dies. A clamping and flipping mechanism is arranged between the two reinforcing frames, and an ejection mechanism is arranged below the clamping and flipping mechanism. A sprocket conveyor mechanism is arranged on the support plate; it is beneficial to automatically and continuously process and forge valve seat workpieces, perform double-sided processing on the workpieces, and ensure that both sides of the workpieces are evenly processed, thereby improving the overall processing accuracy and production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of valve forging, and more particularly to a forging device for a globe valve seat. Background Art

[0002] A globe valve refers to a valve in which the closing member (valve flap) moves along the center line of the valve seat. Its working principle is to control the flow of fluid by relying on the movement of the valve flap on the valve seat. The valve flap makes a linear motion along the center line of the valve seat, changing the distance between the valve flap and the valve seat, thereby changing the cross-sectional area of the flow channel to achieve the control and cut-off of the flow rate.

[0003] Patent No. CN117047026A discloses a forging device and a forging process for a valve body, including a forging seat, a driving device for driving the casting to rotate, and a supporting device for supporting the forging position of the casting; the driving device is movably arranged on the forging seat; the supporting device is arranged on one side of the forging seat. It solves the problems that in the existing solution, the control requirements for the heat treatment temperature are relatively high, and in daily production, the valve body often fails to reach the ideal tissue form after heat treatment and the heat treatment process takes a long time, which will affect the production efficiency.

[0004] The existing valve seats are generally forged one by one. Forging valve seats one by one means that each valve seat needs to go through a series of complex forging processes, including heating, forging, cooling, etc. These processes require a large amount of time and labor, resulting in relatively low production efficiency. Moreover, each time only one surface can be processed, and problems such as uneven thickness and shape deviation caused by single-sided processing are insufficient to meet the existing product requirements. Turning over requires manual or mechanical assistance, which is more time-consuming and reduces the production efficiency. For this reason, we propose a forging device for a globe valve seat. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a forging device for a globe valve seat to solve the problems existing in the above-mentioned background art.

[0006] The present invention provides the following technical solution: A forging device for a globe valve seat, including a support plate, a circulating track is fixedly connected to the inner wall of the support plate, several workstations are arranged around the support plate, and the workstations move cyclically under the limitation of the circulating track. A lower die is fixedly connected to each workstation. Two reinforcing frames are fixedly connected to the upper side of the support plate. Cylinders are fixedly connected to the tops of the two reinforcing frames. Upper dies are fixedly connected to the extending ends of the two cylinders. A clamping and flipping mechanism is arranged between the two reinforcing frames. A jacking mechanism is arranged below the clamping and flipping mechanism. A Geneva wheel conveying mechanism is arranged on the support plate. The Geneva wheel conveying mechanism controls the intermittent cyclic movement of several workstations, so that each workstation pauses when passing through the reinforcing frames and the clamping and flipping mechanism, and the workpiece is jacked out by the jacking mechanism to cooperate with the clamping and flipping mechanism for flipping;

[0007] The grooved wheel conveying mechanism includes a sprocket, a chain, a first motor, and a driven grooved wheel. There are two sprockets, both of which are rotatably connected between the inner walls of the support plate. The chain is drivingly connected between the two sprockets. The first motor is fixedly connected to the side of the support plate. The output end of the first motor is fixedly connected with a driving dial. The driven grooved wheel is fixedly connected to one of the sprockets, and the driving dial meshes with the driven grooved wheel.

[0008] Further, positioning grooves are provided on both sides of each station. Pulleys are installed on both sides of the station. The pulleys are rollingly connected to the surface of the circulating track. An extension rod is fixedly connected between the station and the chain.

[0009] Further, the extending end of the air cylinder is fixedly connected with a U-shaped frame. A first sliding groove is provided on the side wall of the reinforcing frame. The U-shaped frame is slidably connected in the first sliding groove. A first slider is fixedly connected to the U-shaped frame near the positioning groove. The first slider is slidably connected in the positioning groove.

[0010] Further, the ejecting mechanism includes a second motor, an eccentric wheel, a limiting sleeve, and a straight rod. The second motor is fixedly connected to the side of the support plate. The eccentric wheel is fixedly connected to the output end of the second motor. The limiting sleeve is fixedly connected to the inner wall of the support plate. The straight rod is slidably connected in the limiting sleeve. A second slider is fixedly connected to the bottom of the straight rod. A second sliding groove is provided on the side of the eccentric wheel close to the second slider. The second slider is slidably connected in the second sliding groove.

[0011] Further, a top block is installed between the station and the lower die. The top block can slidably penetrate the lower die. A spring is sleeved on the circumferential surface of the top block. The straight rod can push up the top block when moving upward.

[0012] Further, the clamping and flipping mechanism includes a support frame, a sliding seat, a third motor, an electric clamp, and an electric push rod. The support frame is fixedly connected to the upper side of the support plate. The sliding seat is slidably connected in the support frame. The third motor is fixedly connected to the side of the sliding seat. The electric clamp is fixedly connected to the output end of the third motor. The electric push rod is fixedly connected to the lower inner wall of the support frame. The extending end of the electric push rod is fixedly connected to the sliding seat.

[0013] Further, the circulating tracks are symmetrically arranged on the inner wall of the support plate. Four pulleys are arranged on one side of each station close to the circulating track. The diameter of the end of the first slider gradually decreases.

[0014] The technical effects and advantages of the present invention:

[0015] The present invention controls the cyclic movement of several workstations through a Geneva wheel conveyor mechanism, which is beneficial to the automated continuous processing and forging of valve seat workpieces. Through the cyclically moving workstations, the forging production of valve seats can be carried out continuously and stably, effectively improving the production efficiency. Compared with traditional manual forging or simple mechanized forging, automated forging can significantly reduce the production cycle, meet the needs of large-scale production, reduce the manual operation links, reduce the dependence on workers, thus effectively saving labor costs. It can also reduce the labor intensity of workers, improve the working environment, and reduce the occurrence of work-related injuries. Through automated control, precise control of the forging process can be achieved, which is beneficial to producing valve seat products with stable quality and excellent performance.

[0016] The present invention flips the workpiece through an ejection mechanism and a clamping and flipping mechanism, which is beneficial for double-sided processing of the workpiece, can ensure that both sides of the workpiece are evenly processed, thereby improving the overall processing accuracy, and avoiding problems such as uneven thickness and shape deviation caused by single-sided processing. During the automated processing, by precisely controlling the flipping timing and flipping action, the error accumulation caused by multiple clamping and positioning can be reduced, which helps to maintain the high precision and consistency of the valve seat, meet strict quality requirements, and moreover, there is no need to interrupt the production process for manual flipping or re-clamping, improving the automation degree of the production line, reducing manual intervention, and thus improving the production efficiency.

[0017] The present invention is provided with a first slider, which is beneficial for finely adjusting the position of the workstation by using the first slider. Since the workstation moves according to the position of the chain, there may be slight deviations. By synchronously lowering the first slider and the upper die, the position of the workstation can be finely adjusted before the workpiece is forged, enabling the lower die to accurately process, and effectively ensuring the quality of the forged product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 is a top view of the overall structure of the present invention.

[0020] Figure 3 is a schematic diagram of the internal structure of the present invention.

[0021] Figure 4 is a schematic diagram of the Geneva wheel conveyor mechanism of the present invention.

[0022] Figure 5 is a schematic diagram of the clamping and flipping mechanism of the present invention.

[0023] Figure 6 is a schematic diagram of the ejection mechanism of the present invention.

[0024] Figure 7Schematic cross-sectional structure diagram of the lower die of the present invention.

[0025] Figure 8 Schematic structure diagram of the upper die of the present invention.

[0026] Reference numerals are: 1, support plate; 2, circulating track; 3, work station; 301, positioning groove; 302, pulley; 303, ejector block; 304, spring; 305, extension rod; 4, lower die; 5, reinforcement frame; 501, first chute; 6, grooved wheel conveying mechanism; 601, sprocket; 602, chain; 603, first motor; 604, driving dial; 605, driven grooved wheel; 7, cylinder; 701, upper die; 702, U-shaped frame; 703, first slider; 8, ejecting mechanism; 801, second motor; 802, eccentric wheel; 803, limit sleeve; 804, straight rod; 805, second slider; 806, second chute; 9, clamping and flipping mechanism; 901, support frame; 902, sliding seat; 903, third motor; 904, electric fixture; 905, electric push rod. Detailed implementation manners

[0027] Next, the technical solutions in the present invention will be clearly and completely described in conjunction with the drawings in the present invention. In addition, the forms of each structure described in the following implementation manners are merely examples, and a globe valve seat forging device related to the present invention is not limited to the structures described in the following implementation manners. All other implementation manners obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0028] Referring to Figures 1 to 8 , the present invention provides a globe valve seat forging device, including a support plate 1. The inner wall of the support plate 1 is fixedly connected with a circulating track 2. A plurality of work stations 3 are arranged around the support plate 1. The work stations 3 move in a cycle under the limitation of the circulating track 2. A lower die 4 is fixedly connected to each work station 3. Two reinforcement frames 5 are fixedly connected to the upper side of the support plate 1. Cylinders 7 are fixedly connected to the tops of the two reinforcement frames 5. The extending ends of the two cylinders 7 are fixedly connected with upper dies 701. A clamping and flipping mechanism 9 is arranged between the two reinforcement frames 5. An ejecting mechanism 8 is arranged below the clamping and flipping mechanism 9. A grooved wheel conveying mechanism 6 is arranged on the support plate 1. The grooved wheel conveying mechanism 6 is used to control the intermittent cyclic movement of a plurality of work stations 3, so that each work station 3 pauses at the positions of the reinforcement frames 5 and the clamping and flipping mechanism 9, and the workpiece is ejected by the ejecting mechanism 8 to cooperate with the clamping and flipping mechanism 9 for flipping.

[0029] The Geneva wheel conveyor mechanism 6 includes a sprocket 601, a chain 602, a first motor 603, and a driven Geneva wheel 605. There are two sprockets 601, both of which are rotatably connected between the inner walls of the support plate 1. The chain 602 is drivingly connected between the two sprockets 601. The first motor 603 is fixedly connected to the side of the support plate 1. The output end of the first motor 603 is fixedly connected with a driving dial 604. The driven Geneva wheel 605 is fixedly connected to one of the sprockets 601, and the driving dial 604 meshes with the driven Geneva wheel 605.

[0030] In this embodiment, it should be specifically noted that: the circular tracks 2 are symmetrically arranged on the inner walls of the support plate 1. Pulleys 302 are installed on the workstations 3. By using the pulleys 302 to roll on the surfaces of the circular tracks 2, the workstations 3 are restricted to move cyclically on the circular tracks 2. Moreover, several workstations 3 are evenly distributed, that is, the distances between several workstations 3 are the same. The lower die 4 and the upper die 701 cooperate to process forged workpieces. The Geneva wheel conveyor mechanism 6 is used to control the intermittent cyclic movement of several workstations 3. During operation, the driving dial 604 is driven to rotate by the output end of the first motor 603. The driving dial 604 drives the driven Geneva wheel 605 to rotate intermittently. The driven Geneva wheel 605 drives the sprocket 601 to rotate intermittently, thereby driving the chain 602 to move intermittently. When the chain 602 moves, it drives the workstation 3 to move through the extension rod 305, and finally drives the lower die 4 to move. Each lower die 4 will pause when passing under the reinforcement frame 5. At this time, the upper die 701 is controlled by the cylinder 7 to move downward to perform the forging work on the workpiece. Through the cyclic movement of the workstations 3 in this solution, an automated forging system for workpieces is realized. Through the cyclically moving workstations, the forging production of valve seats can be carried out continuously and stably, effectively improving the production efficiency. Compared with traditional manual forging or simple mechanized forging, automated forging can greatly reduce the production cycle and meet the needs of large-scale production. The automated forging system reduces the manual operation links, reduces the dependence on workers, thereby effectively saving labor costs. Automated forging can also reduce the labor intensity of workers, improve the working environment, and reduce the occurrence of work-related injuries. Through automated control, precise control of the forging process can be achieved, thereby producing valve seat products with stable quality and excellent performance.

[0031] Preferably, the cyclically moving workstations can be designed according to actual situations, so that the automated forging system designed in this solution can flexibly meet the production requirements of valve seats of different specifications and different materials. By adjusting the tooling and process parameters, different models of valve seats can be quickly switched for production, improving the flexibility and adaptability of the production line.

[0032] The main difference between this embodiment and the prior art is that in this embodiment, an ejection mechanism 8 and a clamping and flipping mechanism 9 are used to flip the workpiece. Specifically: The positions of the two upper molds 701 and the clamping and flipping mechanism 9 correspond to three consecutive lower molds 4. The lower molds 4 on both sides correspond to the positions of the upper molds 701, and the lower mold 4 in the middle corresponds to the position of the clamping and flipping mechanism 9. While the upper mold 701 is performing the forging step, the output end of the second motor 801 drives the eccentric wheel 802 to rotate. The eccentric wheel 802 drives the second slider 805 to move upward. The second slider 805 drives the straight rod 804 to move upward. The straight rod 804 pushes the ejector block 303 upward, so that the workpiece in the lower mold 4 is ejected by the ejector block 303. At this time, the electric clamp 904 is controlled to clamp both sides of the workpiece. Then, the output end of the second motor 801 rotates back, so that the straight rod 804 returns to its original position, and the extension end of the electric push rod 905 is controlled to drive the sliding seat 902 to move upward. The sliding seat 902 drives the electric clamp 904 to move upward, so that after the workpiece is separated from the lower mold 4, the output end of the third motor 903 is used to drive the electric clamp 904 to rotate. The electric clamp 904 drives the workpiece to flip 180 degrees. Then, the extension end of the electric push rod 905 is controlled to move downward, so that the electric clamp 904 moves downward. After the workpiece is placed back into the lower mold 4, the electric clamp 904 is loosened, realizing that the workpieces corresponding to the two upper molds 701 are in a flipped state, enabling double-sided processing of the workpiece, ensuring that both sides of the workpiece are evenly processed, thereby improving the overall processing accuracy, avoiding problems such as uneven thickness and shape deviation caused by single-sided processing. During the automated processing process, by precisely controlling the flipping timing and flipping action, the error accumulation caused by multiple clamping and positioning can be reduced, contributing to maintaining the high precision and consistency of the valve seat, meeting strict quality requirements, and moreover, there is no need to interrupt the production process for manual flipping or re-clamping, improving the automation degree of the production line, reducing manual intervention, and thus improving production efficiency.

[0033] The above structure is the main structure of this embodiment, which solves the problem of low efficiency in forging valve seats one by one. The driving dial 604 and the driven Geneva wheel 605 are existing structures. The specific structures and connection methods of the lower mold 4 and the upper mold 701 are not specifically described in this embodiment. In addition, how the clamping and flipping mechanism 9 clamps and flips also belongs to the prior art. Therefore, this application does not make a detailed limitation.

[0034] Refer to Figure 3 and Figure 6 , positioning grooves 301 are provided on both sides of each station 3. Pulleys 302 are installed on both sides of the station 3. The pulleys 302 are in rolling connection with the surface of the circulating track 2. A lengthening rod 305 is fixedly connected between the station 3 and the chain 602.

[0035] In this embodiment, it should be specifically noted that the pulley 302 can roll on the surface of the circulating track 2. The circulating track 2 has an upper and lower double-track structure. The pulley 302 is designed as a double-wheel structure according to the circulating track 2. That is, four pulleys 302 are arranged near the circulating track 2 at the work station 3, with a larger contact area, providing a more reliable supporting force to ensure a stable path during the movement of the work station 3, effectively preventing the deviation phenomenon caused by uneven force or external interference. The extension rod 305 is used to connect the work station 3 and the chain 602. The chain 602 drive has a relatively accurate average transmission ratio, which means that during the movement between the work stations 3, the chain 602 can maintain a stable transmission speed, ensuring the synchronization and coordination between several work stations 3. This accuracy helps to realize the automation and precise control of the production line, improve production efficiency and product quality. Moreover, the structure of the transmission system of the chain 602 is relatively compact, which can save space and make the layout of the production line more flexible. At the same time, as a flexible element, the chain 602 can freely change its length by adding or reducing chain links, so as to adapt to the distance and layout requirements between different work stations. This flexibility helps to adapt to various production environments and process requirements.

[0036] Refer to Figure 6 and Figure 8 , a U-shaped frame 702 is fixedly connected to the extending end of the air cylinder 7. A first sliding groove 501 is formed in the side wall of the reinforcing frame 5. The U-shaped frame 702 is slidably connected in the first sliding groove 501. A first slider 703 is fixedly connected to the U-shaped frame 702 near the positioning groove 301. The first slider 703 is slidably connected in the positioning groove 301.

[0037] In this embodiment, it should be specifically noted that when the extending end of the air cylinder 7 pushes the upper die 701 to move up and down, the U-shaped frame 702 moves up and down accordingly. The U-shaped frame 702 moves in the first sliding groove 501. The first sliding groove 501 is used to limit the linear movement of the U-shaped frame 702 to prevent the upper die 701 from shifting, ensuring an accurate forging process. The first slider 703 is designed to cooperate with the positioning groove 301. During the downward movement of the first slider 703, the first slider 703 will slide into the positioning groove 301. Moreover, the diameter of the end of the first slider 703 gradually decreases. After sliding into the positioning groove 301, the first slider 703 fits seamlessly with the positioning groove 301, realizing the fine adjustment of the position of the work station 3 by the first slider 703. Since the work station 3 moves according to the position of the chain 602, there may be slight deviations. By synchronously lowering the first slider 703 and the upper die 701, the position of the work station 3 can be finely adjusted before the workpiece is forged, enabling the lower die 4 to perform precise machining and effectively ensuring the quality of the forged product.

[0038] Refer to Figure 1 , Figure 2 and Figure 6, the ejection mechanism 8 includes a second motor 801, an eccentric wheel 802, a limit sleeve 803 and a straight rod 804. The second motor 801 is fixedly connected to the side of the support plate 1. The eccentric wheel 802 is fixedly connected to the output end of the second motor 801. The limit sleeve 803 is fixedly connected to the inner wall of the support plate 1. The straight rod 804 is slidably connected within the limit sleeve 803. A second slider 805 is fixedly connected to the bottom of the straight rod 804. A second chute 806 is formed on one side of the eccentric wheel 802 close to the second slider 805. The second slider 805 is slidably connected within the second chute 806.

[0039] In this embodiment, it should be specifically noted that: the limit sleeve 803 is located below the clamping and flipping mechanism 9. The straight rod 804 and the second slider 805 are an integral structure. During operation, the eccentric wheel 802 is driven to rotate by the output end of the second motor 801. Since the second slider 805 slides within the second chute 806 and the straight rod 804 moves linearly under the restriction of the limit sleeve 803, the eccentric wheel 802 can drive the straight rod 804 to move up and down reciprocally, thereby realizing the ejection and reset functions of the straight rod 804.

[0040] Refer to Figure 7 , a top block 303 is installed between the station 3 and the lower die 4. The top block 303 can slidably penetrate the lower die 4. A spring 304 is sleeved on the circumferential surface of the top block 303. The straight rod 804 moving upward can eject the top block 303.

[0041] In this embodiment, it should be specifically noted that: a small hole is formed at the bottom of the station 3. The straight rod 804 moving upward can pass through the small hole and push the top block 303 to move upward, thereby ejecting the workpiece in the lower die 4. After the straight rod 804 returns downward to its original position, under the elastic action of the spring 304, the top block 303 returns downward to its original position, realizing the ejection and reset functions of the top block 303 and enabling it to be recycled.

[0042] Refer to Figure 5 , the clamping and flipping mechanism 9 includes a support frame 901, a sliding seat 902, a third motor 903, an electric clamp 904 and an electric push rod 905. The support frame 901 is fixedly connected to the upper side of the support plate 1. The sliding seat 902 is slidably connected within the support frame 901. The third motor 903 is fixedly connected to the side of the sliding seat 902. The electric clamp 904 is fixedly connected to the output end of the third motor 903. The electric push rod 905 is fixedly connected to the lower inner wall of the support frame 901. The extended end of the electric push rod 905 is fixedly connected to the sliding seat 902.

[0043] In this embodiment, it should be specifically noted that: the support frame 901 is used to install the slide block 902 and the electric push rod 905. The slide block 902 can be pushed upward by the electric push rod 905. The electric fixture 904 is a common parallel fixture. In the initial state, the electric fixture 904 is slightly higher than the position of the lower die 4. During operation, after the ejector block 303 ejects the workpiece to a certain height, the electric fixture 904 is controlled to clamp the workpiece. Then, the slide block 902 is driven upward by the electric push rod 905, and the slide block 902 drives the electric fixture 904 upward to separate the workpiece from the lower die 4. Then, the electric fixture 904 is driven to flip by the third motor 903 to flip the workpiece 180 degrees. After the workpiece is turned over, the electric fixture 904 moves downward to the original position and releases the workpiece, and the workpiece returns to the lower die 4 again. The turned-over workpiece continues to move to the lower side of the next reinforcing frame 5, and forging processing can be performed on the turned-over workpiece.

[0044] Refer to Figure 4 , the circulating tracks 2 are symmetrically arranged on the inner wall of the support plate 1. Four pulleys 302 are arranged on one side of each station 3 close to the circulating track 2, and the diameter of the end of the first slider 703 gradually decreases.

[0045] In this embodiment, it should be specifically noted that: two circulating tracks 2 are designed, located on both sides of the station 3. Compared with the single-track structure, it is more stable and provides a more stable supporting effect. The contact area between the four pulleys 302 and the circulating track 2 is larger, providing a more reliable supporting force to ensure that the station 3 always maintains a stable path during the moving process. The diameter of the end of the first slider 703 is the smallest. If the position of the station 3 deviates, the first slider 703 can be inserted into the positioning groove 301 more smoothly and gradually realizes the correction function during the insertion process.

[0046] The working principle of the present invention:

[0047] The main problems solved by this embodiment are: by using the intermittent cyclic movement of the station 3 and the lower die 4, an automated forging system for workpieces is realized, which can continuously and stably perform the forging production of valve seats, solving the problem of low productivity of individual valve seats. By using the ejecting mechanism 8 and the clamping and flipping mechanism 9 to flip the workpiece, double-sided processing of the workpiece can be performed, ensuring that both sides of the workpiece are evenly processed, and solving problems such as uneven thickness and shape deviation caused by single-sided processing. There is no need to interrupt the production process for manual flipping or re-clamping, improving the automation degree of the production line.

[0048] The specific steps are as follows:

[0049] Start the first motor 603 to drive the driving dial 604 to rotate. The driving dial 604 drives the driven sprocket wheel 605 to rotate intermittently. The driven sprocket wheel 605 drives the sprocket 601 to rotate intermittently. The sprocket 601 drives the chain 602 to move intermittently, thereby driving a number of workstations 3 and the lower die 4 to move intermittently in a cycle, and placing the workpiece to be forged in the lower die 4 above the support plate 1. When the lower die 4 moves to the lower side of the first reinforcing frame 5, it pauses. The extension end of the cylinder 7 is used to push the upper die 701 and the U-shaped frame 702 downward. The first slider 703 is inserted into the positioning groove 301 to correct the position of the workstation 3, ensuring that the lower die 4 is accurately located below the upper die 701. Then, the forging work on the workpiece is carried out. After the forging is completed, the upper die 701, the U-shaped frame 702, and the first slider 703 return to their original positions. The workstation 3 and the lower die 4 continue to move and pause when they move to the lower side of the electric fixture 904. At this time, the output end of the second motor 801 drives the eccentric wheel 802 to rotate, so that the eccentric wheel 802 pushes the ejector block 303 upward, thereby ejecting the workpiece in the lower die 4. After the ejector block 303 ejects the workpiece to a certain height, the electric fixture 904 is controlled to clamp the workpiece. Then, the electric push rod 905 drives the slide seat 902 to move upward, and the slide seat 902 drives the electric fixture 904 to move upward, separating the workpiece from the lower die 4. Then, the third motor 903 drives the electric fixture 904 to flip, so that the workpiece flips 180 degrees. After the workpiece is turned over, the electric fixture 904 moves downward to its original position and releases the workpiece. The workpiece returns to the lower die 4 again. The turned-over workpiece continues to move to the lower side of the next reinforcing frame 5, and the forging process on the turned-over workpiece can be carried out to realize the automatic double-sided forging of the workpiece.

[0050] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A stop valve seat forging device, comprising a support plate (1), characterized in that: The inner wall of the support plate (1) is fixedly connected to the circulating track (2), and a plurality of workstations (3) are arranged around the support plate (1). The workstations (3) move cyclically under the limit of the circulating track (2), and each of the workstations (3) is fixedly connected to a lower mold (4). Two reinforcement frames (5) are fixedly connected to the upper side of the support plate (1), and the tops of the two reinforcement frames (5) are fixedly connected to a cylinder (7), and the extended ends of the two cylinders (7) are fixedly connected to an upper mold (701). A clamping and flipping mechanism (9) is arranged between the two reinforcement frames (5), and an ejection mechanism (8) is arranged at the lower side of the clamping and flipping mechanism (9). A grooved wheel conveying mechanism (6) is arranged on the support plate (1), and the intermittent cyclic movement of the plurality of workstations (3) is controlled by the grooved wheel conveying mechanism (6), so that each workstation (3) pauses after passing through the reinforcement frame (5) and the clamping and flipping mechanism (9), and the ejection mechanism (8) ejects the workpiece to cooperate with the clamping and flipping mechanism (9) for flipping; The grooved wheel conveying mechanism (6) comprises a sprocket (601), a chain (602), a first motor (603) and a driven grooved wheel (605); two sprockets (601) are provided and are both rotatably connected between the inner walls of the support plate (1); the chain (602) is transmission-connected between the two sprockets (601); the first motor (603) is fixedly connected to the side of the support plate (1); and the output end of the first motor (603) is fixedly connected to a driving dial ( 604), the driven groove wheel (605) is fixedly connected to one of the sprockets (601), the active dial (604) is meshed with the driven groove wheel (605), both sides of each of the workstations (3) are provided with positioning grooves (301), both sides of the workstations (3) are provided with pulleys (302), the pulleys (302) are rollingly connected to the surface of the circulating track (2), and an extension rod (305) is fixedly connected between the workstation (3) and the chain (602).

2. A stop valve seat forging device according to claim 1, characterized in that: The extended end of the cylinder (7) is fixedly connected to a U-shaped frame (702), a side wall of the reinforcement frame (5) is provided with a first slide groove (501), the U-shaped frame (702) is slidably connected in the first slide groove (501), and a first slider (703) is fixedly connected to the U-shaped frame (702) near the positioning groove (301), and the first slider (703) is slidably connected in the positioning groove (301).

3. A stop valve seat forging device according to claim 2, characterized in that: The ejection mechanism (8) comprises a second motor (801), an eccentric wheel (802), a limiting sleeve (803) and a straight rod (804); the second motor (801) is fixedly connected to a side of the support plate (1); the eccentric wheel (802) is fixedly connected to an output end of the second motor (801); the limiting sleeve (803) is fixedly connected to an inner wall of the support plate (1); the straight rod (804) is slidably connected inside the limiting sleeve (803); a second sliding block (805) is fixedly connected to the bottom of the straight rod (804); a second sliding groove (806) is provided on a side of the eccentric wheel (802) close to the second sliding block (805); and the second sliding block (805) is slidably connected inside the second sliding groove (806).

4. A stop valve seat forging device according to claim 3, characterized in that: A top block (303) is installed between the work station (3) and the lower mold (4). The top block (303) can slide through the lower mold (4). A spring (304) is sleeved on the circumferential surface of the top block (303). The straight rod (804) can move upward to eject the top block (303).

5. A stop valve seat forging device according to claim 4, characterized in that: The clamping and flipping mechanism (9) comprises a support frame (901), a slide seat (902), a third motor (903), an electric clamp (904) and an electric push rod (905), wherein the support frame (901) is fixedly connected to the upper side of the support plate (1), the slide seat (902) is slidably connected inside the support frame (901), the third motor (903) is fixedly connected to the side of the slide seat (902), the electric clamp (904) is fixedly connected to the output end of the third motor (903), the electric push rod (905) is fixedly connected to the lower inner wall of the support frame (901), and the extended end of the electric push rod (905) is fixedly connected to the slide seat (902).

6. A stop valve seat forging device according to claim 5, characterized in that: The circulating track (2) is symmetrically arranged on the inner wall of the support plate (1); four pulleys (302) are arranged on a side of each workstation (3) close to the circulating track (2); and the diameter of the end of the first sliding block (703) gradually decreases.

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