A liner centrifugal forming machine and system

Abstract

This invention provides a liner centrifugal forming machine tool and system. The machine tool includes a machine tool frame, with a driving roller fixedly mounted on the top of the machine tool frame and a driven roller movably mounted on the top of the machine tool frame. A driving roller is positioned between each pair of driven rollers, and a pair of driven rollers and a driving roller together form a roller group. A driven roller adjusting screw is fixedly mounted on the bottom of the machine tool, and a driven roller adjusting slider is mounted on the driven roller adjusting screw. The system includes an insulated box, inside which the aforementioned liner centrifugal forming machine tool is housed. Outside the box are a door motor, a hot air unit, a solvent removal device, and a control box. This machine tool enables adjustment of the gap between the driving and driven rollers, allowing the liner centrifugal device to be used for missiles of different sizes. This system simplifies operator work, achieves automated manufacturing, and improves manufacturing efficiency.

Description

Technical Field

[0001] This invention belongs to the field of solid rocket engine technology, and relates to missile liners, specifically to a liner centrifugal forming machine tool and system. Background Technology

[0002] In modern warfare, rocket engines rely on the stable combustion of propellant to generate kinetic energy from chemical energy, providing flight propulsion for missiles. Propellant loading is divided into two modes: free-loading and wall-casting. In wall-casting, the main components are propellant, insulation layer, and liner. The liner is a high-molecular-weight elastomer material placed between the insulation layer and the propellant, serving to bond the two and ensure reliable adhesion. The uniformity and stability of the liner's properties and its bonding performance directly affect the integrity of the engine structure and its operational reliability. Currently, the main manufacturing processes for the liner include brush coating, stretch coating, spray coating, and polishing, followed by centrifugal molding at a specific temperature.

[0003] Due to their different uses, tactical missiles vary in size, which in turn leads to a wide range of solid rocket motor sizes, with large diameter and length variations. Therefore, the compatibility requirements for the liner molding device are very high. If flexible manufacturing is not possible, different molding equipment must be processed according to the size of the motor, resulting in huge investment. Moreover, personnel often operate the motor through the casing, making operation quite difficult. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a liner centrifugal forming machine tool and system, which solves the technical problem that the existing liner centrifugal device is difficult to be compatible with missiles of different sizes.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A liner centrifugal forming machine tool includes a machine tool frame, which includes a top frame and a bottom frame. The top frame and the bottom frame are arranged in parallel and opposite to each other, and multiple machine tool support legs are fixedly arranged vertically between the top frame and the bottom frame.

[0006] Multiple active roller mounting seats are fixedly installed on both longitudinal sides of the top frame of the machine tool. The multiple active roller mounting seats are arranged in pairs opposite each other. An active roller is rotatably installed between a pair of opposite active roller mounting seats. The active roller is arranged along the longitudinal direction.

[0007] A driven roller guide bracket is fixedly installed on each of the longitudinal sides of the machine tool bottom frame. A driven roller guide rail is fixedly installed on the top surface of the driven roller guide bracket. Multiple driven roller sliding seats are movably installed inside the driven roller guide rail, and the multiple driven roller sliding seats are arranged opposite each other in pairs. A driven roller mounting beam is fixedly installed between a pair of opposite driven roller sliding seats. A pair of driven roller mounting seats is fixedly installed on the top surface of each driven roller mounting beam. A driven roller is rotatably installed between a pair of driven roller mounting seats. The driven rollers are arranged along the longitudinal direction. A driving roller is arranged between each pair of driven rollers. A pair of driven rollers and a driving roller together form a roller group.

[0008] At least one driven roller adjusting screw mounting bracket is fixedly installed at the middle position of the bottom frame of the machine tool. The bottom of a pair of driven roller adjusting screw mounting seats is fixedly installed on the top surface of each driven roller adjusting screw mounting bracket. A driven roller adjusting screw is rotatably installed between the pair of driven roller adjusting screw mounting seats. The driven roller adjusting screws are arranged in the transverse direction. The bottom of at least one driven roller adjusting slider is installed on each driven roller adjusting screw. The top of the driven roller adjusting slider is fixedly connected to the bottom surface of the driven roller mounting beam. The number of driven roller adjusting sliders is equal to the number of driven rollers and they correspond one-to-one.

[0009] The present invention also has the following technical features: The driven roller includes a driven roller central shaft that is rotatably mounted on a driven roller mounting base. Multiple projectile stations are integrally provided on the driven roller central shaft, and the gap between adjacent projectile stations is a projectile limiting groove.

[0010] The active roller and the outer surface of the elastic body station are both provided with a heat-resistant rubber layer.

[0011] Multiple active roller drive motors are fixedly installed on the longitudinal rear side of the bottom frame of the machine tool. One end of the active roller drive chain is connected to the active roller drive motor, and the other end of the active roller drive chain is connected to the active roller.

[0012] The driven roller adjusting screw is equipped with a handwheel.

[0013] The machine tool bottom frame has a traveling pulley mounting bracket fixedly installed on each of its two transverse sides. Multiple traveling pulley mounting shafts are rotatably installed between a pair of traveling pulley mounting brackets. The traveling pulley mounting shafts are arranged in the transverse direction, and multiple traveling pulleys are fixedly installed on the traveling pulley mounting shafts.

[0014] The machine tool has a traveling pulley drive motor fixedly installed on its bottom frame. One end of the traveling pulley drive chain is connected to the traveling pulley drive motor, and the other end of the traveling pulley drive chain is connected to the traveling pulley mounting shaft.

[0015] A machine tool bottom beam is fixedly installed on the bottom surface of each of the two transverse sides of the machine tool bottom frame. Multiple travel pulley guide rails are installed below the machine tool bottom frame. The travel pulley guide rails are arranged along the longitudinal direction, and travel pulleys are movably installed on the travel pulley guide rails.

[0016] The present invention also protects a lining centrifugal forming system, including an insulated box, the insulated box including a front side, a left side, a right side and a top side, and at least one lining centrifugal forming machine tool as described above is provided inside the insulated box.

[0017] A sliding door motor is installed on the top surface of the enclosure.

[0018] A hot air unit is fixedly installed on the front side of the insulated box, and the hot air unit is connected to the space inside the insulated box through a pipe.

[0019] A solvent removal device is fixedly installed on the right side of the box, and the solvent removal device is connected to the space inside the insulated box through a pipe.

[0020] A control box is fixedly installed on the right side of the enclosure. The control box is connected to the door motor, hot air unit, and solvent removal device.

[0021] A sliding door is provided between the left and right sides of the enclosure, and at least one observation window is provided on the sliding door.

[0022] Compared with the prior art, the present invention has the following technical effects: (I) The liner centrifugal forming machine tool of the present invention adopts the mutual cooperation of the driven roller adjusting screw and the driven roller adjusting slider, which can realize the gap adjustment of the driving roller and the driven roller, so that the liner centrifugal device can be used for missiles of different sizes (diameter from 80mm to 1000mm).

[0023] (II) The liner centrifugal forming machine tool of the present invention has multiple elastic body stations on the driven roller, which can perform batch forming of multiple liners and improve manufacturing efficiency.

[0024] (III) The centrifugal molding system for the liner of the present invention uses a control box to drive the sliding door motor to realize the lifting and lowering control of the movable sliding door, and uses the control box to control the opening, closing, temperature setting, etc. of the hot air unit and the solvent removal device, which simplifies the operation of the operators, realizes automated manufacturing, and improves manufacturing efficiency. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the liner centrifugal forming machine.

[0026] Figure 2 This is a schematic diagram of the driven roller adjusting screw.

[0027] Figure 3 This is a schematic diagram of the driven roller.

[0028] Figure 4 This is a rear view of the liner centrifugal forming system.

[0029] Figure 5 This is a right view of the liner centrifugal forming system.

[0030] Figure 6 This is a top view of the liner centrifugal forming system.

[0031] The labels in the diagram represent the following: 1-Machine tool frame, 2-Driving roller mounting seat, 3-Driving roller, 4-Driven roller guide rail bracket, 5-Driven roller guide rail, 6-Driven roller sliding seat, 7-Driven roller mounting beam, 8-Driven roller mounting seat, 9-Driven roller, 10-Driven roller adjusting screw mounting bracket, 11-Driven roller adjusting screw mounting seat, 12-Driven roller adjusting screw, 13-Driven roller adjusting slider, 14-Heat-resistant rubber layer. 5-Active roller drive motor, 16-Active roller transmission chain, 17-Handwheel, 18-Traveling pulley mounting bracket, 19-Traveling pulley mounting shaft, 20-Traveling pulley, 21-Traveling pulley drive motor, 22-Traveling pulley transmission chain, 23-Machine tool base beam, 24-Traveling pulley guide rail, 25-Insulated box, 26-Sliding door, 27-Observation window, 28-Sliding door motor, 29-Hot air unit, 30-Solvent removal device, 31-Control box.

[0032] 101-Top frame of machine tool, 102-Bottom frame of machine tool, 103-Support leg of machine tool.

[0033] 901 - Driven roller center shaft, 902 - Projectile station, 903 - Projectile limiting groove.

[0034] The specific content of the present invention will be further explained in detail below with reference to the embodiments. Detailed Implementation

[0035] It should be noted that all components in this invention, unless otherwise specified, are components known in the art. For example: The driven roller adjusting screw 12 adopts a conventional screw known in the prior art.

[0036] The solvent removal device 30 employs a conventional solvent removal device known in the prior art, such as an exhaust fan unit.

[0037] The sliding door motor 28 uses a conventional explosion-proof motor known in the prior art.

[0038] The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments. All equivalent modifications made based on the technical solutions of this application fall within the protection scope of the present invention.

[0039] Example 1: This embodiment provides a centrifugal forming machine for linings, such as Figure 1 and Figure 2 As shown, the machine tool includes a machine tool frame 1, which includes a top frame 101 and a bottom frame 102. The top frame 101 and the bottom frame 102 are arranged in parallel and opposite to each other. Multiple machine tool support legs 103 are fixedly arranged vertically between the top frame 101 and the bottom frame 102.

[0040] Multiple active roller mounting seats 2 are fixedly installed on the longitudinal sides of the top frame 101 of the machine tool. The multiple active roller mounting seats 2 are arranged opposite each other in pairs. An active roller 3 is rotatably installed between a pair of opposite active roller mounting seats 2. The active roller 3 is arranged along the longitudinal direction.

[0041] A driven roller guide bracket 4 is fixedly installed on each of the longitudinal sides of the machine tool bottom frame 102. A driven roller guide rail 5 is fixedly installed on the top surface of the driven roller guide bracket 4. Multiple driven roller sliding seats 6 are movably installed inside the driven roller guide rail 5. The multiple driven roller sliding seats 6 are arranged opposite each other in pairs. A driven roller mounting beam 7 is fixedly installed between a pair of opposite driven roller sliding seats 6. A pair of driven roller mounting seats 8 is fixedly installed on the top surface of each driven roller mounting beam 7. A driven roller 9 is rotatably installed between a pair of driven roller mounting seats 8. The driven roller 9 is arranged along the longitudinal direction. A driving roller 3 is arranged between each pair of driven roller 9. A pair of driven roller 9 and a driving roller 3 together form a roller group.

[0042] At least one driven roller adjusting screw mounting bracket 10 is fixedly installed at the middle position of the machine tool bottom frame 102. The bottom of a pair of driven roller adjusting screw mounting seats 11 is fixedly installed on the top surface of each driven roller adjusting screw mounting bracket 10. A driven roller adjusting screw 12 is rotatably installed between the pair of driven roller adjusting screw mounting seats 11. The driven roller adjusting screw 12 is arranged in the transverse direction. The bottom of at least one driven roller adjusting slider 13 is installed on each driven roller adjusting screw 12. The top of the driven roller adjusting slider 13 is fixedly connected to the bottom surface of the driven roller mounting beam 7. The number of driven roller adjusting sliders 13 is equal to the number of driven rollers 9 and they correspond one-to-one.

[0043] In this embodiment, as the driven roller adjusting screw 12 rotates, the driven roller 9 adjusting sliding seat can move in the lateral direction, thereby driving the driven roller mounting beam 7 and the driven roller 9 to move in the lateral direction, realizing the adjustment of the distance between the driven roller 9 and the driving roller 3, so as to adapt to the centrifugal forming of elastic body liners of different diameters.

[0044] In this embodiment, there are two driving rollers 3, four driven rollers 9, four driven roller adjusting sliders 13, and three driven roller adjusting screws 12. One driven roller adjusting screw 12 is equipped with two driven roller adjusting sliders 13, and the other two driven roller adjusting screws 12 are each equipped with one driven roller adjusting slider 13. The number of driving rollers 3, driven rollers 9, driven roller adjusting sliders 13, and driven roller adjusting screws 12 can be set according to actual conditions.

[0045] As one specific solution in this embodiment, such as Figure 3 As shown, the driven roller 9 includes a driven roller central shaft 901 rotatably mounted on the driven roller mounting base 8. Multiple projectile stations 902 are integrally provided on the driven roller central shaft 901, and the gap between adjacent projectile stations 902 is a projectile limiting groove 903.

[0046] In this embodiment, the projectile station 902 is used to clamp the projectile, and a detachable limiting chuck (not shown in the figure) is provided in the projectile limiting groove 903. The limiting chuck can prevent the projectile from being displaced in the axial direction.

[0047] As one specific solution in this embodiment, such as Figure 3 As shown, both the drive roller 3 and the projectile station 902 are provided with a heat-resistant rubber layer 14. In this embodiment, the heat-resistant rubber layer 14 can increase friction to prevent the projectile from bouncing.

[0048] As one specific solution in this embodiment, such as Figure 1 As shown, multiple active roller drive motors 15 are fixedly installed on the longitudinal rear side of the machine tool bottom frame 102. One end of the active roller drive chain 16 is connected to the active roller drive motor 15, and the other end of the active roller drive chain 16 is connected to the active roller 3.

[0049] In this embodiment, the number of active roller drive motor 15, active roller transmission chain 16 and active roller 3 are equal and correspond one-to-one. The specific number can be set according to actual needs. After the active roller drive motor 15 is started, it drives the transmission chain to rotate, which in turn drives the active roller 3 to rotate.

[0050] As one specific solution in this embodiment, such as Figure 1 and Figure 2As shown, the driven roller adjusting screw 12 is equipped with a handwheel 17. In this embodiment, the driven roller adjusting screw 12 is driven to rotate by rotating the handwheel 17.

[0051] As one specific solution in this embodiment, such as Figure 1 As shown, a traveling pulley mounting bracket 18 is fixedly installed on each of the two transverse sides of the machine tool bottom frame 102. Multiple traveling pulley mounting shafts 19 are rotatably mounted between a pair of traveling pulley mounting brackets 18. The traveling pulley mounting shafts 19 are arranged in the transverse direction, and multiple traveling pulleys 20 are fixedly mounted on the traveling pulley mounting shafts 19. In this embodiment, the entire centrifugal forming machine tool can be moved by the rolling of the traveling pulleys 20.

[0052] As one specific solution in this embodiment, such as Figure 1 As shown, a travel pulley drive motor 21 is fixedly mounted on the bottom frame 102 of the machine tool. One end of a travel pulley transmission chain 22 is connected to the travel pulley drive motor 21, and the other end of the travel pulley transmission chain 22 is connected to the travel pulley mounting shaft 19. In this embodiment, the travel pulley drive motor 21 and the travel pulley transmission chain 22 are used to drive the travel pulley mounting shaft 19 to rotate, thereby realizing the rolling of the travel pulley 20.

[0053] As one specific solution in this embodiment, such as Figure 1 As shown, a machine tool bottom beam 23 is fixedly installed on the bottom surface of each of the two transverse sides of the machine tool bottom frame 102. Multiple travel pulley guide rails 24 are installed below the machine tool bottom frame 102, with the travel pulley guide rails 24 arranged longitudinally. Travel pulleys 20 are movably mounted on the travel pulley guide rails 24. In this embodiment, the travel pulley guide rails 24 guide the travel pulleys 20.

[0054] Example 2: This embodiment provides a centrifugal molding system for linings, such as Figures 4 to 6 As shown, it includes an insulated box 25, which includes a front side, a left side, a right side, and a top side. At least one lining centrifugal forming machine tool of Embodiment 1 is provided inside the insulated box 25.

[0055] A sliding door motor 28 is installed on the top surface of the enclosure. A hot air unit 29 is fixedly installed on the front side of the insulated enclosure 25, and the hot air unit 29 is connected to the space inside the insulated enclosure 25 via pipes. A solvent removal device 30 is fixedly installed on the right side of the enclosure, and the solvent removal device 30 is connected to the space inside the insulated enclosure 25 via pipes. A control box 31 is fixedly installed on the right side of the enclosure, and the control box 31 is connected to the sliding door motor 28, the hot air unit 29, and the solvent removal device 30.

[0056] In this embodiment, the sliding door motor 28 is connected to the movable sliding door 26 via a hinge, enabling the movable sliding door 26 to move up and down.

[0057] In this embodiment, air heated to a preset temperature is supplied into the insulation box 25 by the hot air unit 29, so that the insulation box 25 can be maintained at a suitable temperature.

[0058] In this embodiment, the solvent removal device 30 is used to remove volatile solvents.

[0059] In this embodiment, the control box 31 is used to control the start and stop of the sliding door motor 28, the hot air unit 29 and the solvent removal device 30.

[0060] As one specific solution in this embodiment, such as Figure 1 As shown, a sliding door 26 is provided between the left and right sides of the box body, and at least one observation window 27 is provided on the sliding door 26. In this embodiment, the rotation of the spring of the insulated box body 25 can be observed through the observation window 27.

[0061] The working process of this invention is as follows: First, the control box 31 starts the door motor 28, raises the movable door 26, and starts the travel pulley drive motor 21 to drive the travel pulley 20 to move on the travel pulley guide rail 24, so that the machine tool removes the insulated box 25.

[0062] Second, turn the handwheel 17 to drive the driven roller adjusting screw 12 to rotate, so that the driven roller adjusting slider 13 drives the driven roller 9 to move. After adjusting the driving roller 3 and the driven roller 9 to a suitable distance, the projectile is mounted on the projectile station 902 of the driven roller 9. Then, turn the handwheel 17 again to adjust the gap between the driving roller 3 and the driven roller 9 to ensure that the projectile can contact the driving roller 3.

[0063] Third, start the active roller drive motor 15 to drive the active roller 3 to rotate, and the active roller 3 drives the driven roller 9 to rotate, and brush the lining coating onto the projectile.

[0064] Fourth, after applying the lining coating, move the machine tool back into the insulation box 25 until the machine tool is inside the insulation box 25, then lower the sliding door 26 so that the sliding door 26 and the insulation box 25 form a sealed space.

[0065] Fifth, the solvent removal device 30 is started using the control box 31 to remove the volatile solvent components for 30 minutes. Then, the hot air unit 29 is started using the control box 31 and the heating temperature is set so that the heated air enters the insulation box 25, allowing the lining to form.

Claims

1. A lining centrifugal molding system, comprising an insulated box (25), wherein the insulated box (25) includes a front surface, a left surface, a right surface, and a top surface, characterized in that: The insulation box (25) is equipped with a lining centrifugal forming machine tool; the lining centrifugal forming machine tool includes a machine tool frame (1), the machine tool frame (1) includes a machine tool top frame (101) and a machine tool bottom frame (102), the machine tool top frame (101) and the machine tool bottom frame (102) are arranged in parallel opposite to each other, and multiple machine tool support legs (103) are fixedly arranged vertically between the machine tool top frame (101) and the machine tool bottom frame (102); Multiple active roller mounting seats (2) are fixedly installed on both longitudinal sides of the top frame (101) of the machine tool. The multiple active roller mounting seats (2) are arranged opposite to each other in pairs. An active roller (3) is rotatably installed between a pair of opposite active roller mounting seats (2). The active roller (3) is arranged along the longitudinal direction. A driven roller guide bracket (4) is fixedly installed on each of the longitudinal sides of the machine tool bottom frame (102). A driven roller guide rail (5) is fixedly installed on the top surface of the driven roller guide rail bracket (4). Multiple driven roller sliding seats (6) are movably installed inside the driven roller guide rail (5). The multiple driven roller sliding seats (6) are arranged opposite to each other in pairs. A driven roller mounting beam is fixedly installed between a pair of opposite driven roller sliding seats (6). A pair of driven roller mounting seats is fixedly installed on the top surface of each driven roller mounting beam. A driven roller (9) is rotatably installed between a pair of driven roller mounting seats. The driven roller (9) is arranged along the longitudinal direction. A driving roller (3) is arranged between each pair of driven rollers (9). A pair of driven rollers (9) and a driving roller (3) together form a roller group. At least one driven roller adjusting screw mounting bracket (10) is fixedly installed at the middle position of the bottom frame (102) of the machine tool. The bottom of a pair of driven roller adjusting screw mounting seats (11) is fixedly installed on the top surface of each driven roller adjusting screw mounting bracket (10). A driven roller adjusting screw (12) is rotatably installed between the pair of driven roller adjusting screw mounting seats (11). The driven roller adjusting screw (12) is arranged along the transverse direction. The bottom of at least one driven roller adjusting slider (13) is installed on each driven roller adjusting screw (12). The top of the driven roller adjusting slider (13) is fixedly connected to the bottom surface of the driven roller mounting beam. The number of driven roller adjusting sliders (13) is equal to the number of driven rollers (9) and they correspond one-to-one. The driven roller (9) includes a driven roller central shaft (901) rotatably mounted on a driven roller mounting base. Multiple projectile stations (902) are integrally provided on the driven roller central shaft (901), and the gap between adjacent projectile stations (902) is a projectile limiting groove (903). The active roller (3) and the projectile station (902) are both provided with a heat-resistant rubber layer (14). Multiple active roller drive motors (15) are fixedly installed on the longitudinal rear side of the bottom frame (102) of the machine tool. One end of an active roller drive chain (16) is connected to the active roller drive motor (15), and the other end of the active roller drive chain (16) is connected to the active roller (3). The driven roller adjusting screw (12) is equipped with a handwheel (17); A traveling pulley mounting bracket (18) is fixedly installed on each of the two sides of the bottom frame (102) of the machine tool. Multiple traveling pulley mounting shafts (19) are rotatably installed between a pair of traveling pulley mounting brackets (18). The traveling pulley mounting shafts (19) are arranged along the horizontal direction, and multiple traveling pulleys (20) are fixedly installed on the traveling pulley mounting shafts (19). The machine tool bottom frame (102) is fixedly installed with a traveling pulley drive motor (21), and one end of the traveling pulley transmission chain (22) is connected to the traveling pulley drive motor (21), and the other end of the traveling pulley transmission chain (22) is connected to the traveling pulley mounting shaft (19). A machine tool bottom beam (23) is fixedly installed on the bottom surface of the machine tool bottom frame (102) on both sides of the horizontal direction. Multiple travel pulley guide rails (24) are installed below the machine tool bottom frame (102). The travel pulley guide rails (24) are arranged along the longitudinal direction, and travel pulleys (20) are movably installed on the travel pulley guide rails (24). A sliding door motor (28) is installed on the top surface of the box. A hot air unit (29) is fixedly installed on the front side of the insulated box (25), and the hot air unit (29) is connected to the space inside the insulated box (25) through a pipe; A solvent removal device (30) is fixedly installed on the right side of the box body. The solvent removal device (30) is connected to the space inside the insulated box body (25) through a pipe. A control box (31) is fixedly installed on the right side of the box body. The control box (31) is connected to the door motor (28), the hot air unit (29), and the solvent removal device (30). A sliding door (26) is provided between the left and right sides of the box, and at least one observation window (27) is provided on the sliding door (26).

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