Adaptive Base Blank Molding Machine and Molding Method

Abstract

This application relates to the technical field of rubber product molding. Specifically, it relates to an adaptive base blank molding machine and a molding method, including a machine base, a mold, and a frame; the machine base includes a base body and a rotatable platform installed on the base body, and the mold is installed on the rotatable platform so that the mold rotates with the rotatable platform; the frame includes a pressure roller, and the pressure roller is used to act on the material layer laid on the mold. The purpose of this application is to address the problem that stress concentration points will be formed at the lap joint between two cord fabric layers in the arc area of the adaptive rubber base due to the current adaptive rubber base molding process, and to provide an adaptive base blank molding machine and a molding method.

Description

Technical Field

[0001] This application relates to the technical field of rubber product molding, and more particularly, to an adaptive base blank molding machine and a molding method. Background Art

[0002] The world's advanced medium and long-range nuclear-capable and conventional-capable land-based missiles adopt the technology of unanchored field launching. The strategic missile launch vehicle can operate in areas without roads, muddy, soft soil, deserts, etc., and can launch at non-scheduled locations. The launch site does not require prior preparation. The launch vehicle can stop and launch at any time during the maneuvering process. It adopts advanced hanging launch tubes and the technology of adaptive extension rubber bases connected thereto. The adaptive rubber base is mainly used to reliably transmit the impact load generated by cold launch (compressed air, gas, etc.) / hot launch (engine ignition) to the ground when the missile is launched, and at the same time control the additional load of the adaptive rubber base within a certain range to ensure the safety of the missile launch process and the launch vehicle.

[0003] As Figure 11 As shown, due to the special shape of the airbag-type adaptive rubber base, it is different from the conventional rubber product molding process. Currently, the commonly used process is to directly carry out molding in the vulcanization mold by the method of overlapping the skeleton material (nylon cord fabric layer). In the arc area a of the adaptive rubber base, the overlapping method of the cord fabric is adopted in the arc area a of the adaptive rubber base. Between the two cord fabric layers in the same layer, the cord fabric layer lines are not continuous but staggered at the joint, which leads to the joint position of the cord fabric layer overlapping in the arc area a becoming a stress concentration point under the pressure-bearing state. The end point of the cord fabric overlap of the adaptive rubber base becomes a stress concentration point under the missile ignition launch state, and the instantaneous stress concentration becomes the starting point of damage. Summary of the Invention

[0004] The purpose of this application is to provide an adaptive base blank molding machine and a molding method for the problem that the overlapping joint between the two cord fabric layers in the arc area of the adaptive rubber base will form a stress concentration point due to the current adaptive rubber base molding process.

[0005] To achieve the above purpose, this application adopts the following technical solutions:

[0006] One aspect of this application provides an adaptive base blank molding machine for molding an adaptive base blank, including a machine base, a mold, and a frame;

[0007] The machine base includes a base body and a rotatable platform installed on the base body, and the mold is installed on the rotatable platform so that the mold rotates with the rotatable platform;

[0008] The frame includes a pressure roller for acting on the material layer laid on the mold.

[0009] Optionally, the adaptive base blank is a trough with a notch. The bottom end of the mold is fixed on the rotatable platform, and the bottom end of the mold is used to form the notch, while the top end of the mold is used to form the bottom of the trough. That is to say, the mold is a frustum-like structure fixed on the rotatable platform, and the larger-diameter end of this frustum-like structure is fixed on the rotatable platform. During use, each material layer can be laid layer by layer on the outer surface of the mold, and then the material layer is rolled by the pressure roller for forming. This enables the excess material at the notch to be more conveniently cut on the rotatable platform by the cutting device after each material layer is rolled and before the blank is formed, thus completing the forming of the blank. Of course, the mold can also be a trough with its notch facing upward, and each material layer is laid in the trough, and the pressure roller rolls the material layer in the trough, but the step of cutting the excess material after rolling is not easy to complete.

[0010] Optionally, the mold includes a bottom layer part, a middle layer part, and a top layer part that are detachably connected in sequence from bottom to top. The middle layer part and the bottom layer part can have multiple size specifications. When it is necessary to adjust the total contour size of the blank, the middle layer part and / or the bottom layer part can be replaced according to the need to change the mold size, and thus change the total contour size of the blank to produce products of different specifications.

[0011] Optionally, both the bottom layer part and the middle layer part are annular parts, and a connecting part for assembling and installing a connecting member is formed at the inner ring edge of the annular part. Since the outer surface of the mold is used for laying the material layer, installing the bottom layer part and the middle layer part on the outer surface of the mold through the connecting member may affect the flatness of the material layer and have an impact on the forming. Making both the bottom layer part and the middle layer part annular parts facilitates the connection between the bottom layer part and the rotatable platform, the connection between the bottom layer part and the middle layer part, and the connection between the middle layer part and the top layer part from inside the ring.

[0012] Optionally, the frame includes a main body and a pressure roller moving assembly installed on the main body, and the pressure roller is installed on the pressure roller moving assembly. In this way, the pressure roller can be moved to different corresponding positions of the mold according to the need to roll the material layer, which is convenient for controlling the pressure roller as required. Of course, the position of the pressure roller can also be different, but instead, a mechanism for moving the rotatable platform can be added, and the rotatable platform is moved accordingly as needed.

[0013] Optionally, the press roller moving assembly includes a vertical moving member installed on the body and a horizontal moving member installed on the vertical moving member, and the press roller is installed on the horizontal moving member. In this way, the press roller can be moved in the vertical and horizontal directions according to the different positions of the formed blank, so as to realize the rolling of the corresponding positions. In the embodiment of the present application, the vertical moving member can realize the vertical movement of the horizontal moving member through a vertical driving motor and a vertical driving lead screw, and the horizontal moving member can realize the horizontal movement of the press roller through a horizontal driving motor and a horizontal driving lead screw. Of course, the horizontal moving member can be connected to the body, and then the vertical moving member can be installed on the horizontal moving member.

[0014] Optionally, the frame includes a press roller acting assembly, and the press roller acting assembly includes the press roller. The press roller acting assembly is installed on the horizontal moving member to realize the pivoting of the press roller through the press roller acting assembly. The pivoting of the press roller does not mean that the press roller rotates around a rotating shaft passing through its axis, but that the press roller and the rotating shaft together rotate around another axis as the pivoting axis. This further increases the flexibility of the movement of the press roller, is more conducive to forming the local details of the adaptive base blank, and improves the production quality of the adaptive base blank.

[0015] Optionally, the press roller has a rotating shaft coaxially arranged with the press roller, and the press roller acting assembly has a pivoting axis, and the pivoting axis is perpendicular to the rotating shaft. In this way, when the press roller rolls the arc part of the blank, the inclination angle of the rotating shaft of the press roller relative to the horizontal plane can be changed according to the radian of the arc part to adapt to the radian, so as to obtain a better rolling effect of the material layer at the arc part and make the blank have better quality. The press roller acting assembly can include a rotating motion driving part such as a motor to realize the pivoting of the press roller, or can include a linear motion driving part such as an electric push rod, and combine the corresponding mechanism to convert the linear motion into the pivoting motion of the press roller. Of course, the press roller acting assembly can also include a mechanism such as a cylinder to realize a micro-adjustment of the rolling pressure of the press roller, and more precisely control the rolling pressure according to different positions of the blank.

[0016] Another aspect of the present application provides a method for forming an adaptive base blank. The method for forming an adaptive base blank is realized by using the adaptive base blank forming machine provided by the present application. The method includes:

[0017] A film piece for covering the mold is arranged on the mold, and the film piece includes: a plurality of film layers stacked in sequence;

[0018] A plurality of curtain cloth pieces are sequentially arranged on the film piece, and after each curtain cloth piece is arranged, the adaptive base blank forming machine is controlled to roll the curtain cloth piece to form an initial material layer. Wherein, the curtain cloth piece includes two curtain cloth layers stacked continuously;

[0019] Laminating and bonding a film layer on the cord fabric layer at the uppermost layer of the initial stock layer to obtain a final stock layer;

[0020] Controlling the adaptive base blank forming machine to roll press the final stock layer;

[0021] Cutting the surplus material around the adaptive base blank formed in the final stock layer after roll pressing.

[0022] In the adaptive base blank forming method provided by the embodiment of the present application, by applying the adaptive base blank forming machine provided by the embodiment of the present application, the cord fabric layers are laid layer by layer as a whole, and roll pressing production is carried out. The cord threads in each cord fabric layer are continuous, and there are fewer or almost no stress concentration points. Furthermore, when the adaptive rubber base is in the missile ignition and launch state, fewer or almost no damage starting points will be formed.

[0023] The technical solution provided by the present application can achieve the following beneficial effects:

[0024] The adaptive base blank forming machine and forming method provided by the embodiment of the present application can be formed after laying each stock layer on the mold, so that the cord threads in each cord fabric layer are continuous at each position, reducing the number of stress concentration points of the adaptive base when bearing pressure, and further reducing the number of damage starting points caused by instantaneous stress concentration in the missile ignition and launch state, improving the safety and reliability of reaching the launch.

[0025] The additional technical features and their advantages of the present application will be more clearly described in the following description content, or can be understood through the specific practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the specific embodiments of the present application, the following will briefly introduce the drawings required for the description of the specific embodiments. Obviously, the following drawings are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 It is a front view structural schematic diagram of a part of the adaptive base blank forming machine provided by the embodiment of the present application;

[0028] Figure 2 It is a front view structural schematic diagram of a part of the frame provided by the embodiment of the present application;

[0029] Figure 3 It is a front view structural schematic diagram of the machine base provided by the embodiment of the present application;

[0030] Figure 4 For Figure 3Partial enlarged schematic view at B in [the figure];

[0031] Figure 5 Left view structural schematic diagram of a part of the adaptive base blank forming machine provided by an embodiment of the present application;

[0032] Figure 6 Is Figure 5 Partial enlarged schematic view at A in [the figure];

[0033] Figure 7 Top view structural schematic diagram of a part of the adaptive base blank forming machine provided by an embodiment of the present application;

[0034] Figure 8 Flow schematic diagram of the adaptive base blank forming method provided by an embodiment of the present application;

[0035] Figure 9 Top view schematic diagram of the cord fabric layer laid on the bonding disc provided by an embodiment of the present application;

[0036] Figure 10 Front view cross-sectional schematic diagram of the adaptive base blank;

[0037] Figure 11 Partial structural schematic view of the arc region of the adaptive base blank produced by the existing process;

[0038] Figure 12 Partial structural schematic view of the arc region of the adaptive base blank produced by the adaptive base blank forming machine and the forming method provided by an embodiment of the present application.

[0039] Reference numerals:

[0040] 100 - Body;

[0041] 200 - Vertical moving member;

[0042] 210 - Vertical driving motor;

[0043] 220 - Vertical driving lead screw;

[0044] 300 - Horizontal moving member;

[0045] 310 - Horizontal driving lead screw;

[0046] 320 - Horizontal driving motor;

[0047] 400 - Press roll acting component;

[0048] 410 - Press roll;

[0049] 411 - Rotating shaft;

[0050] 420 - Cylinder;

[0051] 430 - pivot shaft;

[0052] 440 - electric push rod;

[0053] 500 - mold;

[0054] 510 - top layer part;

[0055] 520 - middle layer part;

[0056] 530 - bottom layer part;

[0057] 540 - connecting part;

[0058] 600 - rotatable platform;

[0059] 700 - seat body;

[0060] 800 - cutting device;

[0061] 900 - cord fabric layer;

[0062] a - arc area. Detailed implementation manners

[0063] The technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0064] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0065] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0066] AsFigures 1 to 7 As shown, one aspect of the present application provides an adaptive base blank forming machine, which is used to form an adaptive base blank, and includes a machine base, a mold 500 and a frame;

[0067] The machine base includes a base body 700 and a rotatable platform 600 mounted on the base body 700, and the mold 500 is mounted on the rotatable platform 600, so that the mold 500 rotates with the rotatable platform 600;

[0068] The frame includes a pressure roller 410 , and the pressure roller 410 is used to act on the material layer laid on the mold 500 .

[0069] In the embodiment of the present application, the material layer includes a film layer and a cord layer 900; the rotation of the rotatable platform 600 can be achieved through a rotating drive member and a transmission mechanism.

[0070] The adaptive base blank forming machine provided in the embodiment of the present application can, when in use, lay the material layers on the mold 500 layer by layer, and then apply the pressure roller 410 to the laid material layers, so that the rotatable platform 600 and the pressure roller 410 rotate relative to each other, and the pressure roller 410 rolls all the material layers to complete the forming of the blank.

[0071] The adaptive base blank forming machine provided in the embodiment of the present application can form the material layers after laying them on the mold 500, so that the cords of the cord layer 900 in the same layer are connected at all positions, thereby reducing the number of stress concentration points of the adaptive base when under pressure, thereby reducing the number of damage starting points caused by instantaneous stress concentration when the missile is ignited and launched, and improving the safety and reliability of arrival and launch, especially as Figure 12Good effects can be obtained at the arc-shaped area a shown in the figure. When laying the cord fabric layer 900, the laying angle between the cord fabric layers 900 can also be changed as needed, so that the angle between the cord threads of different cord fabric layers 900 changes, thereby increasing the overall strength of the adaptive base from all directions. In the traditional production process, the thickness of the cord fabric and the total thickness increase in the overlapping area of the cord fabric layer 900, there are steps between layers, and it is not easy to discharge the air at the steps of the film layer - cord fabric layer 900 and cord fabric layer 900 - cord fabric layer 900 during the forming process, which is likely to cause product defects such as delamination and poor interlayer adhesion. At the state where the adaptive rubber base is ignited and launched (the internal pressure is 1.6 MPa and the internal temperature is 1100 - 1300 °C during hot launch, and it works for 1 second), the overlapping end points of the cord fabric become stress concentration points, and the instantaneous stress concentration becomes the starting point of failure. From the analysis of the failure results of the adaptive base in the known hot launch mode, most of the flame penetration areas are located in the overlapping area of the cord fabric layer 900. The traditional production process presents design risks in many aspects, while the manufacturing process realized by using the adaptive base blank forming machine provided by the embodiments of the present application significantly eliminates the risks brought by the overlapping of the cord fabric layer 900.

[0072] Optionally, the adaptive base blank is a groove body, the groove body has a groove opening, the bottom end of the mold 500 is fixed on the rotatable platform 600, the bottom end of the mold 500 is used to form the groove opening, and the top end of the mold 500 is used to form the bottom of the groove body of the groove body. That is to say, the mold 500 is a structure similar to a frustum of a cone fixed on the rotatable platform 600, and the larger diameter end of the structure similar to a frustum of a cone is fixed on the rotatable platform 600. During use, each material layer can be laid layer by layer on the outer surface of the mold 500, and then the material layer is formed by rolling with the pressure roller 410. This enables the excess material at the groove opening to be more conveniently cut on the rotatable platform 600 by the cutting device 800 after each material layer is rolled and before the blank is formed, completing the forming of the blank. Of course, the mold 500 can also be a groove body, the groove opening surface of the groove body faces upward, and each material layer is laid in the groove body, and the pressure roller 410 rolls the material layer in the groove body, but the step of cutting the excess material after rolling is not easy to complete.

[0073] Optionally, the mold 500 includes a bottom layer member 530, a middle layer member 520, and a top layer member 510 that are detachably connected in sequence from bottom to top. The middle layer member 520 and the bottom layer member 530 can have multiple size specifications. When it is necessary to adjust the total contour size of the blank, the middle layer member and / or the bottom layer member can be replaced as needed to change the mold size, thereby changing the total contour size of the blank and producing products of different specifications and sizes. The middle layer member 520 and the bottom layer member 530 can each be only one or can each have two or three, etc.

[0074] Optionally, the bottom layer 530 and the middle layer 520 are both annular members, and a connecting portion 540 for assembling and installing a connecting member is formed on the inner edge of the annular member. Since the outer surface of the mold 500 is used to lay the material layer, installing the bottom layer 530 and the middle layer 520 on the outer surface of the mold 500 through the connecting member may affect the flatness of the material layer and affect the molding. Making the bottom layer 530 and the middle layer 520 both annular members facilitates the connection between the bottom layer 530 and the rotatable platform 600, the connection between the bottom layer 530 and the middle layer 520, and the connection between the middle layer 520 and the top layer 510 from the inside of the annular member.

[0075] Optionally, the frame includes a body 100 and a roller moving assembly mounted on the body 100, and the roller 410 is mounted on the roller moving assembly. In this way, the roller 410 can be moved to different positions of the mold 500 to press the material layer as needed, so that the roller 410 can be controlled as needed. Of course, the roller 410 can also be placed at different positions, but a mechanism for moving the rotatable platform 600 is added, and the rotatable platform 600 is moved accordingly as needed.

[0076] Optionally, the pressing roller moving assembly comprises a vertical moving member 200 installed on the body 100, and a horizontal moving member 300 installed on the vertical moving member 200, and the pressing roller 410 is installed on the horizontal moving member 300. Like this, the pressing roller 410 can be moved vertically and horizontally according to the different positions of the formed blank, and the rolling of the corresponding position can be realized. In the present application embodiment, the vertical moving member 200 can realize the vertical movement of the horizontal moving member 300 by a vertical drive motor 210 and a vertical drive lead screw 220, and the horizontal moving member 300 can realize the horizontal movement of the pressing roller 410 by an arc horizontal drive motor 320 and a horizontal drive lead screw 310. Of course, the horizontal moving member 300 can be connected with the body 100, and then the vertical moving member 200 is installed on the horizontal moving member 300.

[0077] Optionally, the frame includes a roller action assembly 400, the roller action assembly 400 includes the roller 410, and the roller action assembly 400 is installed on the horizontal moving member 300, so as to realize the pivoting of the roller 410 through the roller action assembly 400. The pivoting of the roller 410 does not mean that the roller 410 rotates with the rotating shaft 411 passing through its axis, but that the roller 410 and the rotating shaft 411 rotate together with other axes as the pivot axis 430. This further increases the flexibility of the movement of the roller 410, is more conducive to the molding of the local details of the adaptive base blank, and improves the production quality of the adaptive base blank.

[0078] Optionally, the pressure roller 410 has a rotating shaft 411 coaxially arranged with the pressure roller 410, and the pressure roller acting assembly 400 has a pivot shaft 430, and the pivot shaft 430 is perpendicular to the rotating shaft 411. In this way, when the pressure roller 410 rolls the arc portion of the green body, the inclination angle of the rotating shaft of the pressure roller 410 relative to the horizontal plane can be changed according to the radian of the arc portion to adapt to the radian, so as to obtain a better rolling effect of the material layer at the arc portion and make the green body have better quality. The pressure roller acting assembly 400 can include a rotating motion driving member such as a motor to realize the pivoting of the pressure roller 410, or can include a linear motion driving member such as an electric push rod 440, and combine the corresponding mechanism to convert the linear motion into the pivoting motion of the pressure roller 410. Of course, the pressure roller acting assembly 400 can also include a mechanism such as a cylinder 420 to realize a micro-adjustment of the rolling pressure of the pressure roller 410, and more precisely control the rolling pressure according to different positions of the green body.

[0079] Optionally, it further includes a cutting device 800 for cutting the material layer. The cutting device 800 includes a moving member and a cutting member mounted on the moving member, and the cutting member is mounted on the moving member.

[0080] Optionally, a cutting groove is formed on the rotatable platform 600. The cutting groove is coaxially arranged with the mold 500, and the diameter of the cutting groove is larger than the diameter of the bottom end of the mold 500.

[0081] As Figure 8 shown, another aspect of the present application provides an adaptive base green body forming method. The adaptive base green body forming method is implemented by using the adaptive base green body forming machine provided in the embodiments of the present application. The method includes:

[0082] S1: A film piece for covering the mold is arranged on the mold. The film piece includes: a plurality of film layers stacked in sequence; the number of film layers in the film piece can be 1-3 layers, preferably, the number of film layers in the film piece is 2 layers;

[0083] S2: A plurality of curtain cloth pieces are sequentially arranged on the film piece, and after each curtain cloth piece is arranged, the adaptive base green body forming machine is controlled to roll the curtain cloth piece to form an initial material layer. Among them, the curtain cloth piece includes two curtain cloth layers 900 stacked continuously; in the initial material layer, the number of curtain cloth layers 900 can be 8-12 layers, preferably 10 layers.

[0084] S3: A film layer is laminated and adhered on the curtain cloth layer 900 on the uppermost layer of the initial material layer to obtain a final material layer; preferably, the number of film layers above the initial layer is 1 layer.

[0085] S4: Control the adaptive base green body forming machine to roll the final material layer;

[0086] S5: Cut the surplus material around the adaptive base blank formed in the final material layer after roll pressing.

[0087] In the method for forming an adaptive base blank provided by the embodiment of the present application, by applying the adaptive base blank forming machine provided by the embodiment of the present application, the cord fabric layer 900 as a whole is laid layer by layer for production. The single cord fabric layer 900 is continuous as a whole, and the cord threads of the cord fabric layer 900 are continuous at each position within the same layer, with fewer or almost no stress concentration points. Therefore, fewer or almost no damage starting points are formed in the adaptive rubber base under the missile ignition and launch state.

[0088] In the embodiment of the present application, the cord fabric layer 900 is preferably a rubber-coated cord fabric layer 900. Of course, the cord fabric layer 900 can also be a non-rubber-coated cord fabric layer 900, and the rubber solution is coated during the laying of the cord fabric layer 900.

[0089] To further illustrate the present solution, the present application also provides a specific application example of an adaptive base blank forming machine and a forming method.

[0090] In this application example, the machine base can also be called the forming machine base, the mold 500 can also be called the forming mold 500, the roller acting component 400 can also be called the roller 410 and the feeding and pressing mechanism, the roller moving component can also be called the lifting device, the blank can also be called the rubber blank, and the film layer can also be called the film.

[0091] To manufacture this new type of adaptive base, a forming machine and a forming process for specifically manufacturing the airbag type adaptive rubber base are developed. The forming machine and the forming process are used to press the inner and outer layer films and the cord fabric layer 900 together successively, cut off the surplus parts of the pressed films and the cord fabric layer 900, and put them into a special vulcanization mold for vulcanization to form the final product after the forming is completed.

[0092] Due to the special shape of the airbag type adaptive rubber base, it is different from the forming process of conventional rubber products. Currently, the relevant manufacturing units use the method of overlapping the skeleton material (nylon cord fabric layer) to directly form in the vulcanization mold during production. In this forming process, the cord fabric radial overlapping process is adopted in the "S" area. The cord of the cord fabric layer 900 in the S area and the cord fabric layer 900 of the blank base are not continuous, and the single cord is disconnected. This process has several defects: 1) The cord fabric overlapping process cannot effectively control the cord fabric angle; 2) The thickness of the cord fabric in the overlapping area and the total thickness increase, and there are steps between layers. During the forming process, the air between the film layer - cord fabric layer 900 and the cord fabric - cord fabric layer 900 at the steps is not easily discharged, which is likely to cause product defects such as delamination and poor interlayer adhesion; 3) Under the pressure-bearing state, the overlapping process skeleton material cannot bear the pressure as a whole, and the cord fabric endpoints in the S area become stress concentration points during loading. When the adaptive rubber base is in the state of missile ignition and launch (internal pressure 1.6 MPa, internal temperature 1100 - 1300 °C, working for 1 second during hot launch), the cord fabric overlapping endpoints become stress concentration points, and the instantaneous stress concentration becomes the starting point of failure. From the analysis of the failure results of the known hot launch mode adaptive base, most of the flame penetration areas are located in the skeleton material overlapping area, and this result shows that there are various design risks in this process.

[0093] According to the load-bearing and usage conditions of the airbag type adaptive rubber base, the rubber part structure design adopts the integral structure forming process without overlapping of the skeleton material. Calculate the safety multiple of the skeleton material according to the load usage conditions, and select the skeleton material with high strength and high modulus. The single cord of the skeleton material penetrates the whole rubber part base, reducing the number of cord fabric layers 900. During actual launch, it can ensure that the cord fabric layer 900 bears the pressure as a whole, and the impact load generated by cold launch (compressed air, gas, etc.) / hot launch (engine ignition) is reliably transmitted to the ground, so as to obtain better buffering and resilience performance, ensure the stability of the base and reduce the vibration impact on the launch device and the attached vehicle, and ensure the safety of the missile launch process.

[0094] The forming machine and the forming process design are constituted as follows: the machine base of the forming machine, the forming die 500, the frame, the pressing roller 410 and the feeding and pressing mechanism, the lifting device, the film-curtain fabric cutting device 800, the film (inner and outer rubber layers), and the curtain fabric layer 900; after the film layer or the curtain fabric layer 900 is laminated on the laminating disc, it is pulled to the forming die 500, and the adaptive base component (film layer or curtain fabric layer 900) is laminated on the forming die 500. The forming die 500 rotates and works on the machine base of the forming machine. The lifting device on the frame lowers the pressing roller 410 and the feeding and pressing mechanism for roll forming, and rolls the component. The pressing wheel rotates driven by the electric push rod 440, and at the same time descends and moves towards the center direction to ensure that the pressing wheel presses the film layer or the curtain fabric layer 900; after the pressing of the film layer or the curtain fabric layer 900 is completed, the pressing roller 410 and the lifting cross beam both rise to the highest position. After the roll forming is completed, the cutting device 800 slowly rotates one week along the workbench, rotates into the cutting position and cuts the redundant film and curtain fabric materials to complete the adaptive base rubber blank.

[0095] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An adaptive base blank forming machine, which is used to form an adaptive base blank, and is characterized in that, It includes a machine base, a mold and a frame; The machine base includes a base body and a rotatable platform installed on the base body, and the mold is installed on the rotatable platform so that the mold rotates with the rotatable platform; The frame includes a pressing roller, and the pressing roller is used to act on the material layer laid on the mold; The adaptive base blank is a trough body, the trough body has a trough opening, the bottom end of the mold is fixed on the rotatable platform, the bottom end of the mold is used to form the trough opening, and the top end of the mold is used to form the trough bottom of the trough body; The mold includes a bottom layer part, a middle layer part and a top layer part which are detachably connected in sequence from bottom to top; Both the bottom layer part and the middle layer part are annular parts, and a connecting part for assembling and installing a connecting piece is formed at the inner ring edge of the annular part; A cutting groove is formed on the rotatable platform, the cutting groove is coaxially arranged with the mold, and the diameter of the cutting groove is larger than the diameter of the bottom end of the mold.

2. The adaptive base blank forming machine according to claim 1, wherein The frame includes a main body and a pressing roller moving assembly installed on the main body, and the pressing roller is installed on the pressing roller moving assembly.

3. The adaptive base blank forming machine according to claim 2, wherein The pressing roller moving assembly includes a vertical moving part installed on the main body and a horizontal moving part installed on the vertical moving part, and the pressing roller is installed on the horizontal moving part.

4. The adaptive base blank forming machine according to claim 3, characterized in that, The frame includes a pressing roller acting assembly, the pressing roller acting assembly includes the pressing roller, and the pressing roller acting assembly is installed on the horizontal moving part to realize the pivoting of the pressing roller through the pressing roller acting assembly.

5. The adaptive base blank forming machine according to claim 4, characterized in that, The pressing roller has a rotating shaft coaxially arranged with the pressing roller, and the pressing roller acting assembly has a pivoting shaft, and the pivoting shaft is perpendicular to the rotating shaft.

6. Adaptive base blank forming method, characterized in that, This method for forming an adaptive base blank is realized by using the adaptive base blank forming machine as described in any one of claims 1-5, and the method includes: A film piece for covering the mold is arranged on the mold, and the film piece includes: a plurality of film layers stacked in sequence; A plurality of curtain cloth pieces are sequentially arranged on the film piece, and after each curtain cloth piece is arranged, the adaptive base blank forming machine is controlled to roll-press the curtain cloth piece to form an initial material layer, wherein the curtain cloth piece includes two curtain cloth layers continuously stacked; A film layer is laminated and adhered on the curtain cloth layer on the uppermost layer of the initial material layer to obtain a final material layer; Controlling the adaptive base blank forming machine to roll-press the final material layer; Cutting the surplus material around the adaptive base blank formed in the final material layer after roll-pressing.

7. The adaptive base blank forming method according to claim 6, wherein, The initial material layer includes two film layers, and the number of curtain cloth layers is 8-12 layers.

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