Energy-containing material dry screening flexible unloading device

Abstract

The application discloses a kind of energetic material dry sieve flexible blanking device, it is related to the field of explosives production technology, including flexible material pressing assembly, rotary drive assembly and lifting assembly, flexible material pressing assembly is connected with lifting assembly by rotating mechanism, rotary drive assembly is located between flexible material pressing assembly and lifting assembly, rotary drive assembly drives flexible material pressing assembly to rotate around rotating mechanism, and flexible material pressing assembly includes the installation mechanism with buffering effect and the several flexible pressure heads that are evenly distributed below installation mechanism.The blanking device of the application has high degree of automation, increases safety, avoids material caking, simulates human manual reciprocating kneading action, and simultaneously improves the blanking rate.

Description

Technical Field

[0001] This invention relates to the field of explosives production technology, and more specifically to the field of flexible feeding device for dry screening of energetic materials. Background Technology

[0002] Explosives are substances that can burn violently (i.e., explode) in a very short time. They are substances that explode due to their own energy under the influence of a certain amount of external energy. The explosives industry is one of the important industrial sectors for strengthening national defense and developing the national economy. In the military field, the explosives industry is an important component of the weapons industry. Explosives are the energy source for weapons; artillery shells, missiles, aerial bombs, torpedoes, mines, landmines, pyrotechnics, and blasting charges all require explosives. Explosives are also widely used in the mining of ores, coal, oil, and natural gas; road construction; damming; river dredging; seismic prospecting; explosive processing; controlled blasting; as well as in satellite launches and the aerospace industry.

[0003] In the production and preparation of explosives, particle size and shape classification are required, which necessitates the use of vibration classification. The vibration classification device (vibrating screen) is equipped with a material conveyor line or manual feeding. To increase the feeding speed and prevent agglomeration, the explosives on the screen are manually stirred and separated using hard tools. However, the existing hard tools are made of rigid materials, which can easily damage the shape of the explosives, resulting in the production of explosives that cannot guarantee the required particle shape. In addition, since explosives are volatile substances, manual operation cannot guarantee safety. If stirring is not performed, the material will clump together over time. Summary of the Invention

[0004] The purpose of this invention is to solve the technical problem that the shape of explosive particles is damaged and safety hazards exist when the explosive is manually moved by hard tools. This invention provides a flexible feeding device for dry screening of energetic materials for feeding explosives onto a vibrating screen for military use.

[0005] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0006] A flexible feeding device for dry screening of energetic materials includes a flexible pressing component, a rotary drive component, and a lifting component. The flexible pressing component and the lifting component are movably connected through a rotating mechanism. The rotary drive component is located between the flexible pressing component and the lifting component. The rotary drive component drives the flexible pressing component to rotate around the rotating mechanism. The flexible pressing component includes a mounting mechanism with a buffering function and a plurality of flexible pressing heads evenly distributed below the mounting mechanism.

[0007] In this design, the feeding device is installed above the vibrating screen (dry screen), and the descent distance is controlled by the lifting assembly. For the feeding device, the flexible pressing assembly is located below, the lifting assembly is located above, and the rotary drive assembly is located between the flexible pressing assembly and the lifting assembly. During operation, the lifting assembly vertically raises and lowers the flexible pressing assembly to a suitable height from the vibrating screen as needed. The rotary drive assembly drives the flexible pressing assembly to rotate at a certain angle. Because the flexible pressing assembly is equipped with several flexible pressing heads, the rotary drive assembly can drive these heads to rotate at a certain angle (the specific rotation angle is designed according to different situations). The flexible pressing heads disperse and separate the material (explosives) on the vibrating screen without damaging the particle shape of the material (explosives). This feeding device has a high degree of automation, requires no manual operation, increases safety, avoids material clumping, and improves the feeding rate of the dry screen.

[0008] The reciprocating motion of the rotary drive component in the pressing device drives the flexible pressing component below to rotate at a certain angle, simulating the manual kneading motion of a human. The flexible pressing head at the bottom simulates the soft skin of a human.

[0009] The flexible pressure head is made of silicone. The shape of the silicone pressure head can be selected according to the actual situation, and can be cylindrical, conical, nipple-shaped, or other shapes; the hardness of the silicone pressure head can also be selected according to the actual situation. The Shore hardness of the silicone pressure head can be selected as follows: 5 (softest, the rubber head deforms more and has poor durability), 10~15 (slightly soft), 20~25 (medium), 30~35 (slightly hard), or 40 (hardest, similar to the hardness of an eraser, with little rubber head deformation).

[0010] The feed inlet (circular tube feed) of the material (explosive) can be set in the middle of the pressing device. During the vibration process, the material can be crushed and dispersed to the maximum extent as it moves from the middle to the outside.

[0011] Furthermore, the installation mechanism includes a rotating plate, a safety buffer assembly, and a pressure head mounting plate arranged in sequence. The upper part of the rotating plate is connected to the lifting assembly via a rotation mechanism, the lower part of the rotating plate is connected to the safety buffer assembly, and the lower part of the safety buffer assembly is connected to the pressure head mounting plate. The pressure head mounting plate is used to install the flexible pressure head.

[0012] In this design, a safety buffer component is incorporated into the installation mechanism, enabling the mechanism itself to raise and lower the flexible pressure head within a certain range. The safety buffer component and the lifting component achieve dual raising and lowering of the flexible pressure head. The reciprocating motion of the rotary drive component causes the lower rotating plate and the flexible pressure head to rotate together at a certain angle, simulating the manual reciprocating rubbing motion of a human. The lowest flexible pressure head simulates the soft skin of a human body.

[0013] Furthermore, the safety buffer assembly includes multiple airbag cylinders, which are evenly distributed circumferentially between the rotating plate and the pressure head mounting plate.

[0014] In this design, the airbag cylinder has a safety buffer function. The top of the airbag cylinder is fixed to the rotating plate, and its bottom is installed on the pressure head mounting plate. The airbag cylinder can raise and lower the pressure head mounting plate by 50mm.

[0015] Furthermore, a closed outer retaining ring is provided around the edge of the pressure head mounting plate.

[0016] In this design, the outer retaining ring is sealed by a flexible connection to prevent material from entering above the pressure head mounting plate.

[0017] Furthermore, the lifting assembly includes a fixed mounting plate, a lifting drive mechanism, and a lifting plate arranged sequentially. One end of the lifting drive mechanism is mounted on the fixed mounting plate, and the other end of the lifting drive mechanism is connected to the lifting plate. One end of the rotation drive assembly is hinged to the lifting plate, and the other end of the rotation drive assembly is hinged to the mounting mechanism.

[0018] This solution presents a preferred structure for the lifting assembly, which features a simple structure, reasonable design, low installation and manufacturing costs, and reliable lifting capability.

[0019] Furthermore, the lifting assembly also includes a stabilizing guide assembly to increase the lifting stability of the lifting plate. The number of stabilizing guide assemblies is at least two sets. Each set of stabilizing guide assemblies includes a guide shaft fixed to the upper surface of the lifting plate and a guide sleeve set on the fixed mounting plate. The guide shaft and the corresponding guide sleeve are fitted together.

[0020] In this solution, the lifting plate of the stabilizing guide assembly is slidably mounted on the fixed mounting plate (external platform) via a guide shaft. The lifting drive mechanism is connected to the lifting plate, driving the lifting plate to rise and fall vertically, preventing the lifting plate from shaking during the lifting process. This sleeve-type guide assembly has the advantages of simple structure, low installation and manufacturing cost, and stable guidance.

[0021] For ease of manufacturing, both the lifting plate and the fixed mounting plate are disc-shaped and identical in size. Taking a configuration of three stabilizing guide components as an example, these three components and the lifting drive mechanism constitute four mechanisms, which are evenly distributed circumferentially along the edge of the fixed mounting plate. This circumferential distribution is a preferred layout. The number of stabilizing guide components can also vary, and they do not necessarily need to be evenly distributed circumferentially; any arrangement that meets the design requirements is acceptable.

[0022] Furthermore, the lifting drive mechanism is equipped with a pressure sensor that can provide real-time pressure feedback. The lifting drive mechanism is one of the following: a lifting cylinder, a lifting hydraulic cylinder, a lifting electric cylinder, or a lifting lead screw.

[0023] In this solution, in addition to the lifting selection form mentioned above, the lifting drive mechanism can also be other lifting drive mechanisms that can meet the design requirements. Among them, the lifting electric cylinder is a preferred method. Taking the lifting electric cylinder as an example, the cylinder body of the lifting electric cylinder is installed on one side of the upper surface of the fixed mounting plate. The piston shaft of the lifting electric cylinder extends through the end of the fixed mounting plate and is equipped with a pressure sensor. The pressure sensor is fixedly connected to the upper surface of the lifting plate below. The pressure sensor feeds back the monitored pressure to the control center in real time, so as to facilitate timely adjustment of the lifting pressure.

[0024] Furthermore, the rotating mechanism is a rotating bearing, with the inner ring of the rotating bearing fixedly connected to the lifting assembly, and the outer ring of the rotating bearing fixed to the top of the mounting mechanism.

[0025] In this design, the rotating component is a rotating bearing, which is a preferred rotating structure. However, other movable structures that meet the design requirements, such as movable joints, can also be used.

[0026] Furthermore, the rotary drive assembly includes a rotary cylinder, a connecting member, and a rotating member. One end of the connecting member is fixed to the outer ring of the rotary bearing, and the other end of the connecting member is hinged to the rotating member. The cylinder body of the rotary cylinder is hinged to the bottom of the lifting assembly, and the end of the piston rod of the rotary cylinder is fixedly connected to the rotating member.

[0027] This solution introduces a preferred structure of a rotary drive assembly. The main component of this rotary drive assembly is a rotary cylinder. The piston of the rotary cylinder drives the connecting part to rotate through a rotary component, which in turn drives the mounting mechanism on the outer ring of the rotary bearing to rotate, thereby realizing the rotation of the flexible pressure head. Due to the size limitations of the rotary cylinder, connecting part and rotary component, the rotation angle of the mounting mechanism in this solution is 15°~30°.

[0028] Furthermore, the rotating part is an L-shaped bent part, which includes an integrally formed horizontal plate and a vertical plate. The free end of the horizontal plate is hinged to the end of the connecting piece, and the vertical plate is fixedly connected to the end of the piston rod of the rotary cylinder.

[0029] This solution introduces a preferred structure for the rotating component. The L-shaped bending component has the advantages of simple structure, convenient installation, and low manufacturing cost. The rotating component can also be any other structure that achieves the design objective.

[0030] The beneficial effects of this invention are as follows:

[0031] 1. The feeding device disclosed in this invention is mainly used in the field of feeding materials to vibrating screens for military explosives. The lifting component vertically lifts and lowers the flexible pressing component to a suitable height from the vibrating screen as required. The rotary drive component drives the flexible pressing component to rotate at a certain angle. Since the flexible pressing component is equipped with several flexible pressing heads, the rotary drive component can drive several flexible pressing heads to rotate at a certain angle (the specific rotation angle is designed according to different situations). The flexible pressing heads disperse and separate the material on the vibrating screen without damaging the particle shape of the material on the vibrating screen. This feeding device has a high degree of automation, simulates the manual reciprocating kneading action of humans, does not require manual operation, increases safety, avoids material agglomeration, and improves the feeding rate of dry screens.

[0032] 2. When the rotary drive component of the present invention reciprocates, it drives the flexible pressing component below to reciprocate at a certain angle. This process simulates the manual reciprocating kneading motion of a human. The flexible pressing head at the bottom simulates the soft skin of a human.

[0033] 3. The safety buffer component of the present invention enables the installation mechanism itself to drive the flexible pressure head to rise and fall within a certain range. The safety buffer component and the lifting component realize the dual lifting of the flexible pressure head.

[0034] 4. The lifting plate of the stable guide assembly of the present invention is slidably mounted on the fixed mounting plate (external platform) through the guide shaft. The lifting drive mechanism is connected to the lifting plate and drives the lifting plate to lift vertically, preventing the lifting plate from shaking during the lifting process. This sleeve-type guide assembly has the advantages of simple structure, low installation and manufacturing cost and stable guidance.

[0035] 5. The lifting assembly of the present invention is equipped with a pressure sensor, which feeds back the monitored pressure to the control center in real time, so as to facilitate timely adjustment of the lifting pressure. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of the present invention;

[0037] Figure 2 yes Figure 1 A structural diagram including the outer retaining ring;

[0038] Figure 3 yes Figure 2 A three-dimensional image;

[0039] Figure 4 yes Figure 1 The left view;

[0040] Figure 5 yes Figure 4 A bottom view;

[0041] Figure 6 yes Figure 1 A partial structural diagram;

[0042] Figure 7 This is a schematic diagram of the structure of the additional feeding device and screen device of the present invention;

[0043] Figure 8 yes Figure 7 A schematic diagram of the structure after removing the enclosure;

[0044] Figure 9 try Figure 8 A structural diagram without the feeding assembly;

[0045] Reference numerals: 1-Flexible pressure head, 2-Pressure head mounting plate, 3-Rotating plate, 4-Lifting plate, 5-Fixed mounting plate, 6-Stabilizing guide assembly, 61-Guide shaft, 62-Guide sleeve, 7-Lifting drive mechanism, 8-Pressure sensor, 9-Rotation drive assembly, 91-Connector, 92-Rotating component, 93-Rotation cylinder, 10-Safety buffer assembly, 11-Outer retaining ring. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0047] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0048] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0049] In the description of the embodiments of the present invention, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0050] Example 1

[0051] like Figures 1 to 9 As shown, this embodiment provides a flexible feeding device for dry screening of energetic materials, including a flexible pressing component, a rotary drive component 9 and a lifting component. The flexible pressing component and the lifting component are movably connected through a rotating mechanism. The rotary drive component 9 is located between the flexible pressing component and the lifting component. The rotary drive component 9 drives the flexible pressing component to rotate around the rotating mechanism. The flexible pressing component includes a mounting mechanism with a buffering function and a plurality of flexible pressing heads 1 evenly distributed below the mounting mechanism.

[0052] In this embodiment, the feeding device is installed above the vibrating screen (dry screen), and the descent distance is controlled by the lifting component. For the feeding device, the flexible pressing component is located below, the lifting component is located above, and the rotary drive component 9 is located between the flexible pressing component and the lifting component. During operation, the lifting component vertically raises and lowers the flexible pressing component to a suitable height from the vibrating screen as needed. The rotary drive component 9 drives the flexible pressing component to rotate at a certain angle. Since the flexible pressing component is equipped with several flexible pressing heads 1, the rotary drive component 9 can drive these heads to rotate at a certain angle (the specific rotation angle is designed according to different situations). The flexible pressing heads 1 disperse and separate the material (explosives) on the vibrating screen without damaging the particle shape of the material (explosives). This feeding device has a high degree of automation, requires no manual operation, increases safety, avoids material agglomeration, and improves the feeding rate of the dry screen.

[0053] When the rotary drive component 9 in the pressing device reciprocates, it drives the flexible pressing component below to reciprocate at a certain angle. This process simulates the manual reciprocating kneading motion of a human. The flexible pressing head 1 at the bottom simulates the soft skin of a human.

[0054] The flexible pressure head 1 is made of silicone. The shape of the silicone pressure head can be selected according to the actual situation. It can be cylindrical, conical, or nipple-shaped, or other shapes. The hardness of the silicone pressure head can also be selected according to the actual situation. The Shore hardness of the silicone pressure head can be 5 (softest, the rubber head deforms more and has poor durability), 10~15 (slightly soft), 20~25 (medium), 30~35 (slightly hard) or 40 (hardest, similar to the hardness of an eraser, the rubber head deforms less).

[0055] The material (explosive) feed inlet (circular tube feed) can be set in the middle of the entire pressing device. During the vibration process, the material can be crushed and dispersed to the maximum extent as it moves from the middle to the outside.

[0056] Example 2

[0057] like Figures 1 to 6 As shown, this embodiment provides a flexible feeding device for dry screening of energetic materials, including a flexible pressing component, a rotary drive component 9 and a lifting component. The flexible pressing component and the lifting component are movably connected through a rotating mechanism. The rotary drive component 9 is located between the flexible pressing component and the lifting component. The rotary drive component 9 drives the flexible pressing component to rotate around the rotating mechanism. The flexible pressing component includes a mounting mechanism with a buffering function and a plurality of flexible pressing heads 1 evenly distributed below the mounting mechanism.

[0058] The mounting mechanism includes a rotating plate 3, a safety buffer assembly 10, and a pressure head mounting plate 2 arranged in sequence. The upper part of the rotating plate 3 is connected to the lifting assembly through a rotating mechanism, the lower part of the rotating plate 3 is connected to the safety buffer assembly 10, and the lower part of the safety buffer assembly 10 is connected to the pressure head mounting plate 2. The pressure head mounting plate 2 is used to install the flexible pressure head 1.

[0059] The safety buffer assembly 10 includes multiple airbag cylinders, which are evenly distributed circumferentially between the rotating plate 3 and the pressure head mounting plate 2.

[0060] In this embodiment, a safety buffer component 10 is designed into the installation mechanism, enabling the installation mechanism itself to drive the flexible pressure head 1 to rise and fall within a certain range. The safety buffer component 10 and the lifting component achieve dual lifting and lowering of the flexible pressure head 1. When the rotary drive component 9 reciprocates, it drives the lower rotary plate 3 and the flexible pressure head 1 to reciprocate at a certain angle, simulating the manual reciprocating rubbing motion of a human. The lowermost flexible pressure head 1 simulates the soft skin of a human.

[0061] The airbag cylinder has a safety buffer function. The top of the airbag cylinder is fixed on the rotating plate 3, and its bottom is installed on the pressure head mounting plate 2. The airbag cylinder can raise and lower the pressure head mounting plate 2 by 50mm.

[0062] Example 3

[0063] This embodiment is a further optimization based on embodiment 2, specifically:

[0064] The pressure head mounting plate 2 is provided with a closed outer retaining ring 11 around its edge.

[0065] In this embodiment, the outer retaining ring 11 is sealed by a flexible connection to prevent material from entering above the pressure head mounting plate 2.

[0066] Example 4

[0067] This embodiment is a further optimization based on any one of the embodiments in Embodiments 1-3, specifically:

[0068] The lifting assembly includes a fixed mounting plate 5, a lifting drive mechanism 7, and a lifting plate 4 arranged in sequence. One end of the lifting drive mechanism 7 is mounted on the fixed mounting plate 5, and the other end of the lifting drive mechanism 7 is connected to the lifting plate 4. One end of the rotary drive assembly 9 is hinged to the lifting plate 4, and the other end of the rotary drive assembly 9 is hinged to the mounting mechanism.

[0069] In this embodiment, a preferred structure of the lifting assembly is presented. This structure has the advantages of simple structure, reasonable design, low installation and manufacturing cost, and reliable lifting capability.

[0070] Example 5

[0071] This embodiment is a further optimization based on embodiment 4, specifically:

[0072] The lifting assembly also includes a stabilizing guide assembly 6 to increase the lifting stability of the lifting plate 4. There are at least two sets of stabilizing guide assemblies 6. Each set of stabilizing guide assemblies 6 includes a guide shaft 61 fixed on the upper surface of the lifting plate 4 and a guide sleeve 62 set on the fixed mounting plate 5. The guide shaft 61 and the corresponding guide sleeve 62 are fitted together.

[0073] In this embodiment, the lifting plate 4 of the stabilizing guide assembly 6 is slidably mounted on the fixed mounting plate 5 (external platform) via the guide shaft 61. The lifting drive mechanism 7 is connected to the lifting plate 4, driving the lifting plate 4 to rise and fall vertically, preventing the lifting plate 4 from shaking during the lifting process. This sleeve-type guide assembly has the advantages of simple structure, low installation and manufacturing cost, and stable guidance.

[0074] For ease of manufacturing, both the lifting plate 4 and the fixed mounting plate 5 are disc-shaped and identical in size. Taking a configuration of three stabilizing guide components 6 as an example, the three stabilizing guide components 6 and the lifting drive mechanism 7 constitute four mechanisms, which are evenly distributed circumferentially along the edge of the fixed mounting plate 5. This circumferential distribution is a preferred layout. The number of stabilizing guide components 6 can also be other, and they do not necessarily need to be evenly distributed circumferentially, as long as the design requirements are met.

[0075] Example 6

[0076] This embodiment is a further optimization based on any one of the embodiments 1-5, specifically:

[0077] The lifting drive mechanism 7 is equipped with a pressure sensor 8 that can provide real-time pressure feedback. The lifting drive mechanism 7 is one of a lifting cylinder, a lifting hydraulic cylinder, a lifting electric cylinder, or a lifting lead screw.

[0078] The rotating mechanism is a rotating bearing. The inner ring of the rotating bearing is fixedly connected to the lifting assembly, and the outer ring of the rotating bearing is fixed to the top of the mounting mechanism.

[0079] In this scheme, in addition to the above-mentioned lifting selection form, the lifting drive mechanism 7 can also be other lifting drive mechanisms 7 that can meet the design requirements. Among them, the lifting electric cylinder is a preferred method. Taking the lifting electric cylinder as an example, the cylinder body of the lifting electric cylinder is installed on one side of the upper surface of the fixed mounting plate 5. The piston shaft of the lifting electric cylinder extends through the end of the fixed mounting plate 5 and is equipped with a pressure sensor 8. The pressure sensor 8 is fixedly connected to the upper surface of the lifting plate 4 below. The pressure sensor 8 feeds back the monitored pressure to the control center in real time, so as to facilitate timely adjustment of the lifting pressure.

[0080] In addition, the rotating component is a rotating bearing, which is a preferred rotating structure. It can also be other movable structures that meet the design requirements, such as movable joints.

[0081] Example 7

[0082] This embodiment is a further optimization based on any one of the embodiments 1-5, specifically:

[0083] The rotary drive assembly 9 includes a rotary cylinder 93, a connector 91, and a rotating component 92. One end of the connector 91 is fixed to the outer ring of the rotary bearing, and the other end of the connector 91 is hinged to the rotating component 92. The cylinder body of the rotary cylinder 93 is hinged to the bottom of the lifting assembly, and the end of the piston rod of the rotary cylinder 93 is fixedly connected to the rotating component 92.

[0084] The rotating part 92 is an L-shaped bending part, which includes an integrally formed horizontal plate and a vertical plate. The free end of the horizontal plate is hinged to the end of the connecting part 91, and the vertical plate is fixedly connected to the end of the piston rod of the rotary cylinder 93.

[0085] In this embodiment, a preferred structure of the rotary drive assembly 9 is introduced. The main component of the rotary drive assembly 9 is the rotary cylinder 93. The piston of the rotary cylinder 93 drives the connecting piece 91 to rotate through the rotary component 92, which in turn drives the mounting mechanism on the outer ring of the rotary bearing to rotate, thereby realizing the rotation of the flexible pressure head 1. Due to the size limitations of the rotary cylinder 93, the connecting piece 91 and the rotary component 92, the rotation angle of the mounting mechanism in this scheme is 15°~30°.

[0086] In addition, this embodiment introduces a preferred structure for the rotating component 92. The L-shaped bending component has the advantages of simple structure, convenient installation, and low manufacturing cost. The rotating component 92 can also be any other structure that can achieve the design purpose.

Claims

1. A flexible feeding device for dry screening of energetic materials, characterized in that, It includes a flexible pressing component, a rotating mechanism, a rotary drive component (9), and a lifting component. The flexible pressing component and the lifting component are movably connected through the rotating mechanism. The rotary drive component (9) is located between the flexible pressing component and the lifting component. The rotary drive component (9) drives the flexible pressing component to rotate around the rotating mechanism. The flexible pressing assembly includes a buffer mounting mechanism and a plurality of flexible pressing heads (1) evenly distributed below the mounting mechanism. The mounting mechanism includes a rotating plate (3), a safety buffer assembly (10), and a pressing head mounting plate (2) arranged in sequence. The upper part of the rotating plate (3) is connected to the lifting assembly through a rotating mechanism. The lower part of the rotating plate (3) is connected to the safety buffer assembly (10). The lower part of the safety buffer assembly (10) is connected to the pressing head mounting plate (2). The pressing head mounting plate (2) is used to install the flexible pressing head (1).

2. The flexible feeding device for dry screening of energetic materials according to claim 1, characterized in that, The safety buffer assembly (10) includes multiple airbag cylinders, which are evenly distributed circumferentially between the rotating plate (3) and the pressure head mounting plate (2).

3. The flexible feeding device for dry screening of energetic materials according to claim 1, characterized in that, The pressure head mounting plate (2) is provided with a closed outer retaining ring (11) around its edge.

4. The flexible feeding device for dry screening of energetic materials according to claim 1, characterized in that, The lifting assembly includes a fixed mounting plate (5), a lifting drive mechanism (7), and a lifting plate (4) arranged in sequence. One end of the lifting drive mechanism (7) is mounted on the fixed mounting plate (5), and the other end of the lifting drive mechanism (7) is connected to the lifting plate (4). One end of the rotation drive assembly (9) is hinged to the lifting plate (4), and the other end of the rotation drive assembly (9) is hinged to the mounting mechanism.

5. The flexible feeding device for dry screening of energetic materials according to claim 4, characterized in that, The lifting assembly also includes a stabilizing guide assembly (6) to increase the lifting stability of the lifting plate (4). The number of stabilizing guide assemblies (6) is at least two sets. Each set of stabilizing guide assemblies (6) includes a guide shaft (61) fixed on the upper surface of the lifting plate (4) and a guide sleeve (62) set on the fixed mounting plate (5). The guide shaft (61) and the corresponding guide sleeve (62) are fitted together.

6. The flexible feeding device for dry screening of energetic materials according to claim 4, characterized in that, The lifting drive mechanism (7) is equipped with a pressure sensor (8) that can provide real-time pressure feedback. The lifting drive mechanism (7) is one of a lifting cylinder, a lifting oil cylinder, a lifting electric cylinder, or a lifting screw.

7. The flexible feeding device for dry screening of energetic materials according to claim 1, characterized in that, The rotating mechanism is a rotating bearing, the inner ring of which is fixedly connected to the lifting assembly, and the outer ring of which is fixed to the top of the mounting mechanism.

8. The flexible feeding device for dry screening of energetic materials according to claim 7, characterized in that, The rotary drive assembly (9) includes a rotary cylinder (93), a connector (91), and a rotary component (92). One end of the connector (91) is fixed to the outer ring of the rotary bearing, and the other end of the connector (91) is hinged to the rotary component (92). The cylinder body of the rotary cylinder (93) is hinged to the bottom of the lifting assembly, and the end of the piston rod of the rotary cylinder (93) is fixedly connected to the rotary component (92).

9. A flexible feeding device for dry screening of energetic materials according to claim 8, characterized in that, The rotating part (92) is an L-shaped bending part, which includes an integrally formed horizontal plate and a vertical plate. The free end of the horizontal plate is hinged to the end of the connecting part (91), and the vertical plate is fixedly connected to the end of the piston rod of the rotary cylinder (93).

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