A sealing ring forming device with an automatic ejection structure

Abstract

This utility model discloses a sealing ring forming device with an automatic ejection structure, relating to the field of sealing ring production technology. It includes a horizontally placed support frame, with a fixed frame fixedly connected to the top of the support frame, and a hydraulic cylinder fixedly connected to the middle of the top of the fixed frame. A driven roller and a driving roller are rotatably connected to the two ends inside the fixed frame, respectively. The driving roller is driven by a servo motor. A transmission chain plate is sleeved on the outside of the driven roller and the driving roller. The transmission chain plate is composed of moving plates hinged end-to-end, and each moving plate has equidistantly distributed insertion slots inside. This sealing ring forming device with an automatic ejection structure automatically cycles through the continuous movement of multi-station lower molds via the transmission chain plate. The matrix-distributed pressing rods can simultaneously press multiple products, achieving continuous processing and improving processing efficiency. When the moving plates rotate to the bottom, impurities automatically fall off as the lower mold opening faces downwards.

Description

Technical Field

[0001] This utility model relates to the field of sealing ring production technology, specifically a sealing ring forming device with an automatic ejection structure. Background Technology

[0002] A sealing ring forming device is a specialized piece of equipment used to manufacture sealing rings. Sealing rings are a common mechanical sealing element, often used in various mechanical equipment to prevent liquid and gas leakage.

[0003] For example, Chinese Patent CN217834454U discloses a molding device for sealing rings, including a processing table, a molding machine body fixedly installed on the top of the processing table, a support shell at the bottom of the molding machine body, a lower mold fixedly connected to the top of the support shell, and an ejection mechanism inside the support shell. The ejection mechanism includes a movable crank and four movable rods. The movable crank is located at one end of the support shell, and a rotating shaft is fixedly connected to one side of the movable crank. Mold cavities are opened on the four corner surfaces of the top of the lower mold. The structure is simple and reasonable, which makes it safer for workers to remove the sealing rings and improves the practicality of the molding device. At the same time, it makes the ejection arc plate more stable during molding, preventing the sealing ring from failing to form due to instability of the ejection arc plate. It avoids the problem that existing sealing rings need to be manually removed after heating and molding, which may cause burns upon contact and poses a safety hazard, making it difficult to meet the actual use conditions.

[0004] In the process of forming a sealing ring, the material needs to be pre-weighed and then placed into a mold for pressing. Existing sealing ring forming devices have a limited number of rings that can be processed at one time, resulting in low processing efficiency. Furthermore, the process of removing the formed sealing rings is inconvenient. Utility Model Content

[0005] The purpose of this utility model is to provide a sealing ring forming device with an automatic ejector structure, so as to solve the problems in the above-mentioned background technology that the sealing ring forming device has a limited number of rings that can be processed at one time, low processing efficiency, and inconvenient process of removing the formed sealing rings.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a sealing ring forming device with an automatic feeding structure, comprising a support frame placed horizontally on the ground, a fixed frame fixedly connected to the top of the support frame, and a hydraulic cylinder fixedly connected to the middle of the top of the fixed frame;

[0007] The fixed frame has a driven roller and a driving roller rotatably connected to its two ends. The driving roller is driven by a servo motor. A transmission chain plate is sleeved on the outside of the driven roller and the driving roller. The transmission chain plate is composed of motion plates that are hinged to each other at their ends. Each motion plate has equidistantly distributed insertion slots. A lower mold is slidably connected inside each insertion slot.

[0008] Preferably, the lower mold has a material groove in the middle, a stud is fixedly connected to the bottom of the lower mold, a limiting plate is sleeved on the outside of the stud, and a hand-tightening nut is threaded to the lower end of the stud.

[0009] Preferably, the hand-tightening nut and the lower end face of the limiting plate are fitted together to fix the limiting plate to the bottom of the lower mold to form a detachable structure. The lower mold is connected by the detachable limiting plate to form a detachable structure between the lower mold and the insertion slot. The outer width of the limiting plate is greater than the bottom width of the lower mold.

[0010] Preferably, the driven roller and the driving roller are composed of a shaft and gear disks fixedly connected to both ends of the shaft. Equally spaced and radially distributed push rods are fixedly connected to the outer side of the shaft constituting the driving roller, and the push rods correspond one-to-one with the lower mold.

[0011] Preferably, a moving block is slidably connected inside the fixed frame, the telescopic end of the hydraulic cylinder extends into the fixed frame, and the top of the moving block and the telescopic end of the hydraulic cylinder are fixedly connected to each other.

[0012] Preferably, the bottom of the moving block is fixedly connected with a matrix-distributed pressure rod, the lower end of the pressure rod matches the material trough, the lower edge of the pressure rod and the top edge of the lower mold form a molding cavity, and the lower end of the pressure rod can be heated.

[0013] Preferably, a support plate is fixedly connected inside the support frame. The support plate is located on the top inner side of the motion plate transmission chain plate and is in contact with it. The support plate has equidistantly distributed support grooves inside. The support grooves are aligned with the lower mold. A discharge groove is provided at one end of the support frame near the drive roller. A scraper is provided on the inner top of the discharge groove. The scraper and the end face of the lower mold are in contact with each other.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This sealing ring forming device with an automatic ejector structure automatically cycles through the continuous movement of multi-station lower molds via a transmission chain plate. The matrix-distributed lower pressure rods can simultaneously press multiple products, achieving continuous processing and improving processing efficiency. When the moving plate rotates to the bottom, the lower mold opening faces downwards and impurities automatically fall off.

[0016] The radial ejector rod of the drive roller is linked with the motion plate to automatically lift the lower mold in the discharge area. It works in conjunction with the fixed scraper to achieve demolding. The guide structure formed by the discharge groove and the scraper ensures that the forming sealing ring is orderly removed from the mold and collected in a concentrated manner, thereby improving material handling efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the support frame of this utility model;

[0019] Figure 3 This is a schematic diagram of the support plate structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the motion plate structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of the lower mold of this utility model;

[0022] Figure 6 This is a schematic diagram of the drive roller structure of this utility model.

[0023] In the diagram: 1. Support frame; 2. Fixed frame; 3. Hydraulic cylinder; 4. Driven roller; 5. Drive roller; 6. Moving plate; 7. Insertion slot; 8. Lower mold; 9. Material trough; 10. Stud; 11. Limiting plate; 12. Hand-tightening nut; 13. Push rod; 14. Moving block; 15. Lower pressure rod; 16. Support plate; 17. Support groove; 18. Discharge trough; 19. Scraper. Detailed Implementation

[0024] 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.

[0025] Example 1: Please refer to Figure 1 - Figure 6This utility model provides the following technical solution: a sealing ring forming device with an automatic feeding structure, comprising a support frame 1 placed horizontally on the ground, a fixed frame 2 fixedly connected to the top of the support frame 1, and a hydraulic cylinder 3 fixedly connected to the middle of the top of the fixed frame 2; a driven roller 4 and a driving roller 5 are rotatably connected to the two ends inside the fixed frame 2, the driving roller 5 is driven by a servo motor, and a transmission chain plate is sleeved on the outside of the driven roller 4 and the driving roller 5. The transmission chain plate is composed of moving plates 6 that are hinged to each other at both ends, and each moving plate 6 has equidistantly distributed... The insertion slots 7 are slidably connected to a lower mold 8. A material groove 9 is located in the center of the lower mold 8. A stud 10 is fixedly connected to the center of the bottom of the lower mold 8. A limiting plate 11 is sleeved on the outside of the stud 10. A hand-tightening nut 12 is threaded to the lower end of the stud 10. The hand-tightening nut 12 and the lower end face of the limiting plate 11 are mutually abutted, fixing the limiting plate 11 to the bottom of the lower mold 8 to form a detachable structure. The detachable connection between the lower mold 8 and the insertion slots 7 is formed by the limiting plate 11. The outer width is greater than the bottom width of the lower mold 8. The driven roller 4 and the driving roller 5 are composed of a shaft and gear discs fixedly connected to both ends of the shaft. Equally spaced and radially distributed push rods 13 are fixedly connected to the outer side of the shaft constituting the driving roller 5. The push rods 13 correspond one-to-one with the lower mold 8. Moving blocks 14 are slidably connected inside the fixed frame 2. The telescopic end of the hydraulic cylinder 3 extends into the fixed frame 2. The top of the moving block 14 and the telescopic end of the hydraulic cylinder 3 are fixedly connected to each other. A matrix-distributed pressing rod 15 is fixedly connected to the bottom of the moving block 14. The lower end of the pressing rod 15 and... The material trough 9 is matched, and the lower edge of the lower pressure rod 15 and the top edge of the lower mold 8 form a forming cavity. The lower end of the lower pressure rod 15 can be heated. The support frame 1 is fixedly connected to the support plate 16. The support plate 16 is located on the top of the inner side of the transmission chain plate of the motion plate 6 and is in contact with it. The support plate 16 has equidistantly distributed support grooves 17 inside. The support grooves 17 are aligned with the lower mold 8. The end of the support frame 1 near the drive roller 5 is provided with a discharge groove 18. The top inner side of the discharge groove 18 is provided with a scraper 19. The scraper 19 and the end face of the lower mold 8 are in contact with each other.

[0026] The driven roller 4 and the driving roller 5 are rotatably connected at both ends inside the fixed frame 2 via a bearing structure. The driving roller 5 is driven by an external servo motor. The internal shaft of the driving roller 5 is fixedly connected to a gear disk and radially distributed push rods 13. After the servo motor starts, it drives the driving roller 5 to rotate slowly, synchronously driving the driven roller 4 through the gear disk meshing mechanism. The transmission chain plate is sleeved on the outside of the driven roller 4 and the driving roller 5. The transmission chain plate is composed of motion plates 6 that are hinged end to end. Each motion plate 6 has equidistantly distributed insertion slots 7 inside. The lower mold 8 is slidably connected through the insertion slots 7, ensuring its detachability and stability. The lower mold 8 has a material trough 9 in the middle to hold the standard weight sealing ring raw materials after precise weighing. The bottom center of the lower mold 8 is fixedly connected to a stud 10, and a limiting plate 11 is sleeved on the outside of the stud 10. A hand-tightening nut 12 is installed at the lower end of the stud 10 by means of threaded connection. When the operator tightens the hand-tightening nut 12, its lower end face is tightly fitted with the limiting plate 11, thereby firmly fixing the limiting plate 11 to the bottom of the lower mold 8, forming a detachable structure. The lower mold 8 is installed in the insertion groove 7 through the limiting plate 11, ensuring the stability of the device during operation, while facilitating manual disassembly and maintenance, and improving flexibility.

[0027] When the device is started, the servo motor starts first, driving the drive roller 5 to rotate at a low and uniform speed. The driven roller 4 is driven to rotate in coordination through the chain plate structure. In the initial position, the lower mold 8 is located in the material loading area near the driven roller 4 inside the fixed frame 2. The operator accurately fills the sealing ring raw material into the material trough 9. Subsequently, the transmission chain plate drives the motion plate 6 to move continuously, smoothly conveying the lower mold 8 to the pressing area. The support plate 16 is fixed inside the support frame 1, located on the top inner side of the transmission chain plate of the motion plate 6. Its top surface is in close contact with the motion plate 6, providing stable support for the entire transmission chain plate to avoid vibration. At the same time, the support plate 16 has equidistantly distributed support grooves 17 inside. Each support groove 17 is precisely aligned with the lower mold 8 in the motion plate 6, ensuring that the material trough 9 will not deform or overflow during the subsequent pressing process.

[0028] When the moving plate 6 moves to the pressing area and the lower mold 8 aligns with each pressing rod 15, the hydraulic cylinder 3 starts to move. The telescopic end of the hydraulic cylinder 3 extends downward, driving the moving block 14 to move downward. The bottom of the moving block 14 is fixedly connected to the pressing rods 15 distributed in a matrix structure. The lower end of each pressing rod 15 matches the size and shape of the corresponding material groove 9. When the pressing rod 15 descends, its lower edge is in close contact with the top edge of the lower mold 8, forming a closed molding cavity to prevent material leakage. At the same time, the lower end of the pressing rod 15 is controlled to be heated by the built-in heating element, softening the sealing ring material and applying uniform pressure. Under the action of high temperature and heavy pressure, the material is gradually squeezed and filled into the molding cavity, and compacted to form the sealing ring product. After the pressing process is completed, the telescopic end of the hydraulic cylinder 3 automatically retracts, driving the moving block 14 and all pressing rods 15 to return to their original position. At this time, the transmission chain plate structure continues to rotate at a uniform speed, entering the subsequent demolding stage.

[0029] As the moving plate 6 moves toward the drive roller 5, the drive roller 5 rotates when it reaches the discharge area. Its radially distributed push rods 13 move upward, lifting the limit plate 11, thereby pushing part of the lower mold 8 out of the insertion groove 7. The moving plate 6 continues to move forward, driving the partially ejected lower mold 8 to the scraping area. The scraper 19 is fixedly installed on the inner side of the top of the discharge groove 18. The scraper 19 and the end face of the lower mold 8 always maintain a tight fit. When the moving plate 6 passes the scraper 19, the scraper 19 gently scrapes up the formed sealing ring and guides it into the discharge groove 18, completing the automatic unloading. The whole process forms a continuous cycle. The servo motor maintains low-speed stable operation. In the moving path of the moving plate 6, when the lower mold 8 rotates to the downward direction, impurities can be naturally discharged by its own gravity.

[0030] The detachable structure of the hand-tightening nut 12 and the limiting plate 11 allows for quick replacement of the lower mold 8, easily adapting to the molding requirements of different sized sealing rings; the support plate 16 and the support groove 17 work together to provide reliable support force and prevent material from overflowing during the extrusion process.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sealing ring forming device with an automatic feeding structure, comprising a support frame (1) placed horizontally on the ground, a fixed frame (2) fixedly connected to the top of the support frame (1), and an oil cylinder (3) fixedly connected to the middle of the top of the fixed frame (2); characterized in that The fixed frame (2) has a driven roller (4) and a driving roller (5) rotatably connected at both ends. The driving roller (5) is driven by a servo motor. The driven roller (4) and the driving roller (5) are fitted with a transmission chain plate on their outer sides. The transmission chain plate is composed of a motion plate (6) that is hinged to each other at both ends. Each motion plate (6) has an equally spaced insertion slot (7) inside. Each insertion slot (7) is slidably connected to a lower mold (8).

2. The sealing ring forming device with automatic ejection structure according to claim 1, characterized in that: The lower mold (8) has a material groove (9) in the middle inside. A stud (10) is fixedly connected to the bottom middle of the lower mold (8). A limiting plate (11) is sleeved on the outside of the stud (10). A hand-tightening nut (12) is threaded to the lower end of the stud (10).

3. The sealing ring forming device with automatic ejection structure according to claim 2, characterized in that: The hand-tightening nut (12) and the lower end face of the limiting plate (11) are attached to each other to fix the limiting plate (11) to the bottom of the lower mold (8) to form a detachable structure. The lower mold (8) is formed by the detachable connection of the limiting plate (11) to form a detachable structure between the lower mold (8) and the insertion groove (7). The outer width of the limiting plate (11) is greater than the bottom width of the lower mold (8).

4. The sealing ring forming device with an automatic ejection structure according to claim 1, characterized in that: The driven roller (4) and the driving roller (5) are composed of a shaft and a gear disk fixedly connected to both ends of the shaft. The outer side of the shaft constituting the driving roller (5) is fixedly connected with push rods (13) that are equidistant and radially distributed. The push rods (13) correspond one-to-one with the lower mold (8).

5. A sealing ring forming device with an automatic ejection structure according to claim 4, characterized in that: The fixed frame (2) is slidably connected to a moving block (14), and the telescopic end of the oil cylinder (3) extends into the fixed frame (2). The top of the moving block (14) and the telescopic end of the oil cylinder (3) are fixedly connected to each other.

6. A sealing ring forming device with an automatic ejection structure according to claim 5, characterized in that: The bottom of the moving block (14) is fixedly connected to a matrix-structured pressing rod (15). The lower end of the pressing rod (15) matches the material trough (9). The lower edge of the pressing rod (15) and the top edge of the lower mold (8) form a molding cavity. The lower end of the pressing rod (15) can be heated.

7. A sealing ring forming device with an automatic ejection structure according to claim 6, characterized in that: The support frame (1) is fixedly connected to a support plate (16). The support plate (16) is located on the top of the inner side of the transmission chain plate of the motion plate (6) and is in contact with it. The support plate (16) has equidistantly distributed support grooves (17). The support grooves (17) are aligned with the lower mold (8). The end of the support frame (1) near the drive roller (5) is provided with a discharge groove (18). The inner side of the top of the discharge groove (18) is provided with a scraper (19). The scraper (19) and the end face of the lower mold (8) are in contact with each other.

Images