Fireproof sealing ring for butterfly valve and production and processing equipment thereof

Abstract

The application discloses a butterfly valve fireproof sealing ring and a production and processing equipment thereof. The fireproof sealing ring comprises two metal shells which are oppositely arranged, and semicircular grooves are formed in the inner sides of the two metal shells; and a core material is arranged in the semicircular grooves. The production and processing equipment comprises two workbenches, and a work plate is arranged between the top portions of the two workbenches. The circular core material is arranged on the workbench, and the two metal shells can be sleeved on the circular core material through a pushing mechanism; in this process, the two metal shells can be assembled; finally, the ear of the metal shell is bent by a worker; in this way, the condition that the semicircular core material falls off from the metal shell before the two metal shells are assembled is avoided; the arrangement of the core material and the assembly of the metal shell are synchronously performed; the production procedure is reduced; and the efficiency of the production and processing equipment is improved.

Description

Technical Field

[0001] This invention relates to the field of fireproof sealing ring production technology, specifically to a fireproof sealing ring for a butterfly valve and its production and processing equipment. Background Technology

[0002] A butterfly valve, also known as a flap valve, is a simple regulating valve that can be used to control the switching of low-pressure pipeline media. It opens and closes by rotating around the valve shaft. In the event of a fire, to prevent fire from flowing into the butterfly valve through the pipeline, workers need to fix a fireproof sealing ring to the outer wall of the pipeline. The core material expands rapidly when heated to prevent the fire from spreading along the opening and to avoid damage to the butterfly valve.

[0003] In the production and processing of fireproof sealing rings, the semi-circular core material is first placed inside the metal shell, and then the corresponding two metal shells are assembled. During the assembly process, the lugs of the metal shells need to be inserted into the hanging rings, and then the lugs are bent. In this way, the production of fireproof sealing rings can be completed.

[0004] The existing technology has at least the following problems: when the semi-circular core material is placed inside the metal shell, since there is no fixed structure to limit the semi-circular core material, the semi-circular core material may fall off from the inside of the metal shell before assembly. At this time, the workers need to reassemble the semi-circular core material. Moreover, the semi-circular core material needs to go through two processes from being placed inside the metal shell to the completion of assembly, which reduces the processing efficiency of the workers. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fireproof sealing ring for a butterfly valve, comprising two metal shells, characterized in that: the two metal shells are placed opposite each other, and a semi-circular groove is provided on the inner side of each of the two metal shells, and a core material is placed inside the semi-circular groove;

[0006] The aforementioned fireproof sealing ring requires specialized production equipment during manufacturing. This equipment includes two workbenches, with a work plate installed between the tops of the two workbenches. A core material is installed on the top of the work plate, and a receiving component is installed on the top of the work plate and at the bottom of the core material. A limiting component is installed at the bottom of the work plate. A pushing mechanism is installed on the top of each of the two workbenches, and a drive plate is installed between the two pushing mechanisms. Conveying mechanisms are installed below the front and rear surfaces of the drive plate. A storage slot is provided inside each of the two workbenches, and metal shells are stacked sequentially from bottom to top in the storage slot.

[0007] The pushing mechanism includes a wedge frame, a pushing rod, a wedge rod, a cutting blade, and an extension frame. The tops of the two worktables are each slidably mounted with a pushing rod. The top of the pushing rod is mounted with a wedge frame, and the wedge rod is slidably connected inside the wedge frame. The wedge rod is fixedly connected to the bottom of the drive plate. The bottom front and rear of the drive plate are symmetrically mounted with extension frames, and the bottom of the extension frames is mounted with a cutting blade.

[0008] Preferably, the conveying mechanism includes a main shaft, a backstop assembly, a rack, a transmission disc, a rotating assembly, a belt, a crossbeam, a tray, and a buffer assembly. Two sets of crossbeams are installed on both the front and rear surfaces of the worktable, with two crossbeams in each set. A main shaft is rotatably connected between each set of crossbeams. Two transmission discs are symmetrically installed on the outer side wall of the main shaft. A belt is wound between two transmission discs in the same vertical direction. A tray is slidably installed below the interior of the receiving slot. A buffer assembly is installed inside the tray. The outer side of the tray is fixedly connected to the belt. A rotating assembly is installed on the outer side wall of the main shaft near the top of the worktable. A rack is installed on one side of the rotating assembly, and the rack is fixedly connected to the bottom of the drive plate.

[0009] Preferably, the limiting component includes a turntable, connecting rods, limiting rods, and a knob. The limiting component has four strip-shaped grooves distributed around its inner circumference. The limiting rods are slidably connected inside the strip-shaped grooves. The turntable is rotatably connected to the bottom center of the working plate via a connecting shaft. A knob is installed at the bottom center of the turntable. Four connecting rods are distributed and rotatably connected to the bottom circumference of the turntable. The ends of the four connecting rods away from the turntable are rotatably connected to the limiting rods.

[0010] Preferably, the receiving assembly includes a receiving plate, a second spring frame, and a fixing block. The top of the working plate has two elongated slots, and the receiving plate is slidably connected inside the elongated slots. A fixing block is installed at the center of the top of the working plate, and the two ends of the fixing block are equipped with second spring frames. The end of the second spring frame away from the fixing block is connected to the receiving plate.

[0011] Preferably, the buffer assembly includes a top rod, a top plate, and a first spring frame. The top rod slides up and down inside the tray. The top rod is located inside the storage slot. The top plate is installed on the top of the top rod. The first spring frame is sleeved on the outer wall of the top rod between the top plate and the tray.

[0012] Preferably, the rotating assembly includes a geared disc, a limiting tooth, and an inner disc. The inner disc is mounted on the outer side wall of the main shaft, and the geared disc is rotatably connected to the outer side wall of the inner disc. The geared disc meshes with the rack. A plurality of inclined grooves are distributed circumferentially on the inner ring surface of the geared disc, and a fixing groove is formed on the outer ring surface of the inner disc. The limiting tooth is installed inside the fixing groove.

[0013] Preferably, a baffle is installed on the top of both workbenches, and the baffle has a Z-shaped structure.

[0014] Preferably, the storage slot extends through the front and rear surfaces of the worktable.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The circular core material is placed on the workbench, and the two metal shells can be fitted onto the circular core material by the pushing mechanism. During this process, the two metal shells will complete the assembly work. Finally, the worker bends the lugs of the metal shells. In this way, the semi-circular core material is prevented from falling off the metal shells before the two metal shells are assembled. Moreover, the placement of the core material and the assembly of the metal shells are carried out simultaneously, reducing the production process and improving the efficiency of the production and processing equipment.

[0016] 2. Conveying mechanisms are installed on both the front and rear surfaces of the workbench. These mechanisms allow multiple metal shells inside the storage slot to rise simultaneously, placing the top metal shell on the top of the workbench. This eliminates the need for workers to repeatedly retrieve the metal shells, providing greater convenience and increasing the efficiency of the production equipment. Furthermore, the buffer components reduce the need for precise operation, enhancing ease of use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the workbench structure after the conveying mechanism is removed in this invention;

[0019] Figure 3 This is a schematic diagram of the right-side structure of the present invention;

[0020] Figure 4 This is a cross-sectional structural diagram of the present invention (viewed from front to back);

[0021] Figure 5 This is a top view of the worktable after the conveying mechanism, drive plate, and wedge rod have been removed in this invention.

[0022] Figure 6 This is a schematic cross-sectional view of the connection between the working plate and the receiving component in this invention (viewed from front to back);

[0023] Figure 7 This is a bottom view of the connection structure between the working plate and the limiting component in this invention;

[0024] Figure 8 This is a cross-sectional view of the connection between the spindle and the buffer assembly in this invention (viewed from left to back);

[0025] Figure 9 This is a schematic diagram of the assembly process for fireproof sealing rings.

[0026] In the diagram: 1. Workbench; 2. Pushing mechanism; 3. Drive plate; 4. Conveying mechanism; 5. Working plate; 6. Metal shell; 7. Core material; 11. Baffle; 12. Storage slot; 21. Wedge frame; 22. Pushing rod; 23. Wedge rod; 24. Cutting blade; 25. Extension frame; 41. Spindle; 42. Anti-reverse assembly; 43. Rack; 44. Transmission plate; 45. Rotating assembly; 451. Gear plate; 452. Limiting... Positioning teeth; 453, inner disc; 46, belt; 47, cross frame; 48, tray; 49, buffer assembly; 491, top rod; 492, top plate; 493, first spring frame; 51, receiving assembly; 511, receiving plate; 512, second spring frame; 513, fixing block; 52, limiting assembly; 521, turntable; 522, connecting rod; 523, limiting rod; 524, knob; 53, long groove; 54, strip groove. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] like Figure 9 As shown, a fireproof sealing ring for a butterfly valve includes two metal housings 6, which are placed opposite each other. A semi-circular groove is provided on the inner side of each metal housing 6, and a core material 7 is placed inside the semi-circular groove.

[0029] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the above-mentioned fireproof sealing ring requires the use of special production and processing equipment during the manufacturing process. The production and processing equipment includes two workbenches 1, a work plate 5 is installed between the tops of the two workbenches 1, a core material 7 is installed on the top of the work plate 5, a receiving component 51 is installed on the top of the work plate 5 and at the bottom of the core material 7, a limiting component 52 is installed at the bottom of the work plate 5, a pushing mechanism 2 is installed on the top of each of the two workbenches 1, a drive plate 3 is installed between the two pushing mechanisms 2, a conveying mechanism 4 is installed below the front surface and below the rear surface of the drive plate 3, and a storage slot 12 is opened inside each of the two workbenches 1, in which metal shells 6 are stacked from bottom to top.

[0030] In practice, the circular core material 7 is placed on the receiving component 51 of the work plate 5. The circular core material 7 can be positioned by the limiting component 52. Then, multiple metal shells 6 are stacked in the storage slot 12 inside the workbench 1. After the above operation is completed, the drive plate 3 can be pressed down by the existing lifting device (such as a cylinder). During this process, the pushing mechanism 2 will drive the two metal shells 6 to assemble the circular core material 7, and at the same time, the circular core material 7 will be cut into a semi-circle. Finally, the hanging ear of the inserted hanging ring is bent to complete the assembly of the fireproof sealing ring. The worker takes out the assembled fireproof sealing ring and then moves the drive plate 3 upward. During this process, the conveying mechanism 4 will drive the metal shells 6 inside the storage slot 12 to move upward step by step. Then the above steps are repeated to install the next fireproof sealing ring.

[0031] like Figure 2 As shown, the pushing mechanism 2 includes a wedge frame 21, a pushing rod 22, a wedge rod 23, a cutting blade 24, and an extension frame 25. The pushing rod 22 is slidably mounted on the top of both worktables 1. The wedge frame 21 is mounted on the top of the pushing rod 22. The wedge rod 23 is slidably connected inside the wedge frame 21. The wedge rod 23 is fixedly connected to the bottom of the drive plate 3. The extension frame 25 is symmetrically mounted on the front and rear of the bottom of the drive plate 3. The cutting blade 24 is mounted on the bottom of the extension frame 25.

[0032] In practice, as the drive plate 3 moves downward, the wedge rod 23 drives the push rod 22 at the bottom of the wedge frame 21 to move relative to it, causing the push rod 22 to push the metal shell 6 towards the circular core material 7. During this process, the cutting blade 24 connected to the extension frame 25 moves downward. When the cutting blade 24 reaches the bottom of the circular core material 7, the lug of the metal shell 6 will be inserted into the hanging ring. Then, the worker bends the lug to complete the assembly of the fireproof sealing ring. After the above operation is completed, the worker moves the drive plate 3 to drive the wedge rod 23 and the cutting blade 24 upward, causing the cutting blade 24 to disengage from the assembled fireproof sealing ring. At the same time, the wedge rod 23 drives the push rod 22 at the bottom of the wedge frame 21 to move to both sides to reset. Finally, the fireproof sealing ring is removed, and the assembly of the next fireproof sealing ring is performed.

[0033] like Figure 2 As shown, the storage slot 12 penetrates the front and rear surfaces of the workbench 1. In actual operation, when the metal shell 6 is placed inside the storage slot 12, the hanging ears and scraper ring can penetrate the storage slot 12 and be positioned on the front and rear surfaces of the workbench 1.

[0034] like Figure 6As shown, the receiving assembly 51 includes a receiving plate 511, a second spring frame 512, and a fixing block 513. The top of the working plate 5 has two elongated slots 53, and the receiving plate 511 is slidably connected inside the elongated slots 53. The fixing block 513 is installed at the center of the top of the working plate 5, and the second spring frame 512 is installed at both ends of the fixing block 513. The end of the second spring frame 512 away from the fixing block 513 is connected to the receiving plate 511. In specific operation, the core material 7 is placed on the receiving plate 511. The receiving plate 511 can leave a certain gap between the bottom of the core material 7 and the worktable 1, which facilitates the insertion of the core material 7 into the metal shell 6. As the metal shell 6 moves towards the core material 7, the metal shell 6 will push the receiving plate 511 towards the fixing block 513. When the metal shell 6 stops constraining the receiving plate 511, the receiving plate 511 will be reset under the action of the second spring frame 512 to ensure that the next core material 7 can be placed on the receiving plate 511.

[0035] like Figure 7 As shown, the limiting assembly 52 includes a turntable 521, connecting rods 522, limiting rods 523, and a knob 524. Four strip-shaped grooves 54 are distributed around the inner circumference of the limiting assembly 52. ​​The limiting rods 523 are slidably connected inside the strip-shaped grooves 54. The turntable 521 is rotatably connected to the bottom center of the working plate 5 via a connecting shaft. A torsion spring sleeved on the connecting shaft connects the turntable 521 to the working plate 5. A knob 524 is installed at the bottom center of the turntable 521. Four connecting rods 522 are distributed and rotatably connected around the bottom circumference of the turntable 521, with the four connecting rods 522 located away from the turntable 521. One end is rotatably connected to the limiting rod 523. In specific operation, when the core material 7 needs to be installed, the turntable 521 is rotated by the knob 524. During this process, the connecting rod 522 will drive the limiting rod 523 to move along the strip groove 54 towards the center of the turntable 521. Then, the operator places the core material 7 on the receiving component 51. Then, under the action of the torsion spring, the turntable 521 drives the limiting rod 523 to reset. During this process, the limiting rod 523 will adjust the position of the core material 7. The position of the core material 7 can be adjusted by the limiting rod 523 so that the core material 7 is in the center position.

[0036] like Figure 1As shown, the conveying mechanism 4 includes a main shaft 41, a backstop assembly 42, a rack 43, a transmission disc 44, a rotating assembly 45, a belt 46, a crossbeam 47, a tray 48, and a buffer assembly 49. Two sets of crossbeams 47 are installed on both the front and rear surfaces of the worktable 1. Each set of crossbeams 47 consists of two crossbeams. The main shaft 41 is rotatably connected between each set of crossbeams 47. Two transmission discs 44 are symmetrically installed on the outer side wall of the main shaft 41. A belt 46 is wound between the two transmission discs 44 in the same vertical direction. A tray 48 is slidably installed below the interior of the receiving slot 12. The buffer assembly 49 is installed inside the tray 48. The outer side of the tray 48 is fixedly connected to the belt 46. A rotating assembly 45 is installed on the outer side wall of the main shaft 41 near the top of the worktable 1. A rack 43 is installed on one side of the rotating assembly 45. The rack 43 is connected to the bottom of the drive plate 3. The parts are fixedly connected. In specific operation, when the drive plate 3 moves downward, it will cause the rack 43 to drive the rotating component 45 to rotate. When the drive plate 3 drives the rack 43 to move upward, the rotating component 45 will drive the transmission disk 44 on the outer wall of the main shaft 41 to rotate clockwise. Then, the belt 46 wound on the outer wall of the transmission disk 44 will drive the tray 48 to move upward. Since the strip rod at the bottom of the push rod 22 has not yet been completely removed from the top of the storage slot 12, the buffer component 49 will be compressed as the tray 48 continues to move upward. When the bottom of the push rod 22 is completely removed, the compressed buffer component 49 will drive the metal shell 6 inside the storage slot 12 to move upward, so that the metal shell 6 moves to the top of the worktable 1. In this way, the continuous discharge of the metal shell 6 is ensured, saving the workers from repeatedly picking up the metal shell 6.

[0037] like Figure 4 As shown, the buffer assembly 49 includes a top rod 491, a top plate 492, and a first spring frame 493. The top rod 491 slides up and down inside the tray 48. The top rod 491 is located inside the storage slot 12. The top plate 492 is installed on the top of the top rod 491. The first spring frame 493 is sleeved on the outer wall of the top rod 491 between the top plate 492 and the tray 48. In specific operation, multiple metal shells 6 are placed directly above the top plate 492. During the period when the tray 48 continues to move upward and the push rod 22 has not been completely removed from directly above the storage slot 12, the first spring frame 493 will be compressed. When the push rod 22 is completely removed from directly above the storage slot 12, the compressed first spring frame 493 will reset. During this process, the top plate 492 will drive the metal shells 6 to move upward, and then the uppermost metal shell 6 will move along the storage slot 12 to directly above the worktable 1. The buffer assembly 49 can reduce the accuracy of the adjustment tray 48's upward movement.

[0038] like Figure 8As shown, the rotating assembly 45 includes a gear disk 451, a limiting tooth 452, and an inner disk 453. The inner disk 453 is installed on the outer wall of the main shaft 41, and the gear disk 451 is rotatably connected to the outer wall of the inner disk 453. The gear disk 451 meshes with the rack 43. Several inclined grooves are distributed circumferentially on the inner ring surface of the gear disk 451. A fixing groove is opened on the outer ring surface of the inner disk 453. The limiting tooth 452 is installed inside the fixing groove. In specific operation, when the rack 43 moves downward, the gear disk 451 will rotate counterclockwise. Since the inclined groove does not restrict the limiting tooth 452, the gear disk 451 will rotate on its own while the inner disk 453 remains stationary. When the rack 43 moves upward, the gear disk 451 will rotate clockwise. During this process, the end of the limiting tooth 452 will contact the groove wall of the inclined groove, and then drive the inner disk 453 to rotate synchronously, ensuring that the metal shell 6 inside the storage groove 12 will not move upward during the assembly operation.

[0039] like Figure 2 As shown, baffles 11 are installed on the top of both worktables 1. The baffles 11 have a Z-shaped structure. During operation, the baffles 11 can prevent the metal shell 6 from popping off the worktable 1 when the buffer assembly 49 moves the metal shell 6 upward.

[0040] When this production and processing equipment is in use:

[0041] First, stack multiple metal shells 6 in the storage slots 12 inside the workbench 1. Then, place the core material 7 on the receiving component 51 of the work plate 5. The position of the circular core material 7 can be adjusted by the limiting component 52.

[0042] The second step involves using an external drive device to move the drive plate 3 up and down repeatedly. As the drive plate 3 moves downward, the push rod 22 pushes the metal outer shells 6 on both sides toward the core material 7, and the metal outer shells 6 fit onto the core material 7. During this process, the cutting blade 24 cuts the circular core material 7 into a semi-circle. Then, the worker uses a wrench to bend the lugs of the metal outer shell 6. This completes the assembly of the fireproof sealing ring.

[0043] The third step is to move the drive plate 3 upwards. The drive plate 3 can drive the cutting blade 24 to detach from the assembled fireproof sealing ring. Then, the assembled fireproof sealing ring is taken out, and the new round core material 7 is placed on the work plate 5. This process is repeated.

[0044] Fourth, as the drive plate 3 moves upward, the tray 48 will cause the buffer assembly 49 to squeeze. When the push rod 22 moves away from directly above the storage slot 12, the metal shell 6 inside the storage slot 12 will rise to the top of the workbench 1, thus completing the continuous feeding of the metal shell 6.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A butterfly valve fireproof sealing ring production and processing equipment, comprising two metal housings and two workbenches, characterized in that: Two said metal shell opposite placement, two said metal shell inside are equipped with semicircular recess, semicircular recess inside place core material; Two said workbench top between installation workboard, workboard top installation core material, workboard top and located the bottom of core material installation receiving assembly, workboard bottom installation limit component, two said workbench top all are installed and push away mechanism, two said push away mechanism between installation drive plate, drive plate front surface below and rear surface below all are installed and transport mechanism, two said workbench inside all are equipped with storage groove, the storage groove in from below to above sequentially stacked metal shell; Two said workbench top all are installed and baffle, baffle is Z-shaped structure; The push away mechanism includes wedge-shaped frame, push away rod, wedge-shaped rod, cutting blade and extension frame, two said workbench top all are left and right slide installation push away rod, the top of push away rod is installed with wedge-shaped frame, the inside of wedge-shaped frame is connected with wedge-shaped rod, wedge-shaped rod and drive plate bottom fixed connection, the bottom of drive plate front and rear symmetry installs extension frame, the bottom of extension frame is installed with cutting blade.

2. The butterfly valve fireproof sealing ring production and processing equipment according to claim 1, characterized in that: The transport mechanism includes a spindle, a reverse stop component, a rack, a transmission disc, a rotating component, a belt, a cross frame, a tray and a buffer component, the front surface and the rear surface of the workbench are provided with two groups of cross frames, each group of the cross frames comprises two cross frames, a spindle is rotatably connected between each group of the cross frames, two transmission discs are symmetrically mounted on the outer side wall of the spindle, a belt is wound between two transmission discs in the same vertical direction, a tray is slidably mounted inside the storage groove, a buffer component is mounted inside the tray, the outer side of the tray is fixedly connected with the belt, a rotating component is mounted on the outer side wall of the spindle near the top of the workbench, a rack is mounted on one side of the rotating component, and the rack is fixedly connected with the bottom of the drive plate.

3. The butterfly valve fireproof sealing ring production and processing equipment according to claim 1, characterized in that: The limit component includes a rotating disc, a connecting rod, a limit rod and a knob, four strip-shaped grooves are circumferentially distributed inside the limit component, the limit rod is slidably connected inside the strip-shaped grooves, a rotating disc is rotatably connected to the bottom center of the workboard through a connecting shaft, a knob is mounted on the bottom center of the rotating disc, four connecting rods are circumferentially distributed and rotatably connected to the bottom of the rotating disc, and one end of each connecting rod away from the rotating disc is rotatably connected with the limit rod.

4. The butterfly valve fireproof sealing ring production and processing equipment according to claim 1, characterized in that: The receiving assembly includes a receiving plate, a second spring frame and a fixed block, two long grooves are formed in the top of the workboard, the receiving plate is slidably connected inside the long grooves, a fixed block is mounted on the top center of the workboard, the second spring frame is mounted on both ends of the fixed block, and one end of the second spring frame away from the fixed block is connected with the receiving plate.

5. The butterfly valve fireproof sealing ring production and processing equipment according to claim 2, characterized in that: The buffer component includes a top rod, a top plate and a first spring frame, the top rod is slidably arranged inside the tray, the top rod is located inside the storage groove, the top plate is mounted on the top of the top rod, and the first spring frame is sleeved on the outer side wall of the top rod between the top plate and the tray.

6. The butterfly valve fireproof sealing ring production and processing equipment according to claim 2, characterized in that: The rotating assembly comprises a gear disc, a limiting tooth and an inner disc, an outer side wall of the main shaft is provided with the inner disc, an outer side wall of the inner disc is rotationally connected with the gear disc, the gear disc is engaged with the gear rack, a plurality of inclined grooves are distributed in a circumferential direction of an inner annular surface of the gear disc, a fixing groove is formed in an outer annular surface of the inner disc, and the limiting tooth is mounted in the fixing groove.

7. The butterfly valve fireproof sealing ring production and processing equipment according to claim 1, characterized in that: The receiving groove penetrates the front surface and the rear surface of the workbench.

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