Full-automatic propellant fixed-length cutting device

Abstract

The application discloses a kind of full-automatic propellant fixed-length cutting device, belong to cutting processing technical field, including workbench and be set at the top end of workbench for cutting propellant cutting combination, the bottom end of workbench is connected with multiple support legs, the top end of workbench is connected with the protective cover for explosion prevention, the top end of workbench is connected with two symmetrically arranged right-angled trapezoidal for limiting propellant limiting plate, the top end of workbench is provided with blanking groove for facilitating cutting waste slag to fall down;The bottom end of workbench is detachably connected with the liquid containing box compatible with blanking groove, two vertical inner walls of liquid containing box are connected with inclined plate, and the inclined filter frame between inclined plate and liquid containing box, the inner wall of filter frame is connected with the filter screen for filtering air.The full-automatic propellant fixed-length cutting device can not only isolate and ensure the safety of operation, but also can special material handling for unqualified propellant.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of cutting processing, and in particular relates to a full-automatic propellant fixed-length cutting device. BACKGROUND

[0002] In the production process of military ammunition, the propellant charge quantity needs to be accurately controlled according to the charging process standard, otherwise the product is unqualified. The existing production process is as follows: after the staff weighs the propellant column weight by hand, the propellant column that needs to be adjusted in weight is manually broken according to the charging process requirement, and then the propellant column weight is weighed again to confirm whether the requirement is met, and if not, the propellant column needs to be broken and weighed again. It is time-consuming and laborious, so a full-automatic propellant fixed-length cutting device is provided to ensure the consistency of the charging quantity in the production process of military ammunition and improve the product quality and production efficiency, but it has the disadvantage that although manual close-range cutting is not required, the instrument and the propellant cannot be isolated as much as possible, and danger may still occur.

[0003] After searching, a full-automatic propellant fixed-length cutting device is provided in Chinese patent document (application publication number CN116222322A). The full-automatic propellant fixed-length cutting device includes a cutting device rack, a lower decorative plate, an upper isolation plate, an input side isolation door mechanism, a propellant column cutting and output mechanism, a propellant column fixed-length mechanism, a propellant column pressing mechanism, a propellant column shearing mechanism, an output side isolation door mechanism, and a waste collection cartridge. The device can cut propellant according to the instructions of the upper computer, and no personnel is involved in the working process, realizing man-machine isolation operation, adapting to intelligent and automatic assembly line charging process, ensuring the consistency of the charging quantity in the production process of ammunition, and improving the product quality and production efficiency. However, it has the disadvantage that although manual close-range cutting is not required, the instrument and the propellant cannot be isolated as much as possible, and danger may still occur. SUMMARY

[0004] The purpose of the present application is to provide a full-automatic propellant fixed-length cutting device to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a full-automatic propellant fixed-length cutting device, including a workbench and a cutting combination for cutting propellant arranged at the top end of the workbench, a plurality of supporting legs connected to the bottom end of the workbench, a protective cover for explosion prevention connected to the top end of the workbench, two symmetrical right-angled trapezoidal limiting plates for limiting the propellant connected to the top end of the workbench, and a discharging groove for facilitating the falling of cutting waste arranged at the top end of the workbench.

[0006] The bottom end of the workbench is detachably connected with a liquid containing box matched with the blanking groove, the two vertical inner walls of the liquid containing box are connected with inclined connecting plates, an inclined filter frame is arranged between the inclined connecting plates and the liquid containing box, the inner wall of the filter frame is connected with a filter screen for filtering air, two triangular plates for plugging are connected between the filter frame and the liquid containing box, both sides of the liquid containing box are provided with air passage corresponding to the filter frame, the top end of the protective cover is connected with a plurality of fixing clamps, the fixing clamps are fixed with nitrogen cylinders, the gas outlets of the nitrogen cylinders are communicated with the protective cover through a gas discharge pipe provided with an electromagnetic valve, and the opening of the gas discharge pipe is aligned with the cutting assembly.

[0007] As a preferred embodiment, the cutting assembly comprises an L-shaped mounting plate fixedly connected to the top end of the protective cover, a vertical electric push rod connected to the lateral inner wall of the mounting plate, and a mounting rod connected to the bottom end of the moving part of the vertical electric push rod, the bottom end of the mounting rod is connected with a cutting knife for cutting the propellant.

[0008] As a preferred embodiment, the top end of the protective cover is provided with a circular passage matched with the mounting rod, and the inner wall of the circular passage is bonded with a rubber sleeve having a sealing effect.

[0009] As a preferred embodiment, the outer periphery of the mounting rod is connected with two air plugging ring plates, and the adjacent side surfaces of the two air plugging ring plates are bonded with rubber ring plates.

[0010] As a preferred embodiment, vertical linear motors are installed on both sides of the protective cover to provide power for the fixed-length propellant pushing, and the moving parts of the two vertical linear motors are jointly connected with a C-shaped connecting plate.

[0011] As a preferred embodiment, the bottom end of the connecting plate is connected with a vertical plate, the side surface of the vertical plate is connected with a pushing plate for pushing the propellant, the shape of the pushing plate corresponds to the gap between the two limiting plates, and the top end of the pushing plate is connected with a pressing plate for fixing the propellant through a plurality of connecting electric push rods.

[0012] As a preferred embodiment, circular passages are provided on both sides of the protective cover to facilitate feeding and discharging, auxiliary electric push rods are connected to both sides of the protective cover, and the moving parts of the auxiliary electric push rods are connected with plugging plates for plugging the circular passages.

[0013] As a preferred embodiment, the side surface of the workbench is rotatably connected with a receiving plate, the side surfaces of the two supporting legs are connected with inclined electric push rods, and the side surfaces of the inclined electric push rods are connected with pulleys for lifting the receiving plate.

[0014] As a preferred embodiment, an adjusting linear motor is embedded and installed at the top end of the receiving plate, the moving part of the adjusting linear motor is connected with a pushing plate for pushing the material, and one of the vertical side surfaces of the pushing plate is configured as an inclined surface.

[0015] As a preferred embodiment, the side of the protective cover is embedded with a perspective window, the side of the protective cover is installed with a controller for providing full-automatic control of the cutting assembly, the inner cavity of the liquid containing box contains treatment liquid, and the side of the liquid containing box is installed with a stirrer for stirring the treatment liquid.

[0016] Compared with the prior art, the technical effects and advantages of the present application are:

[0017] The full-automatic propellant fixed-length cutting device can isolate the vertical electric push rod and other instruments of the cutting assembly from the outside of the cutting knife, reduce the influence of the instruments on the propellant, improve safety, introduce nitrogen from the space between the protective cover and the workbench to assist in discharging air and reducing the oxygen content in the space, greatly reduce the possibility of danger due to the good fire-retardant effect of nitrogen and the lower temperature than room temperature, improve the overall safety, and the generated waste residue and the waste residue that may exist in the propellant itself will move downward under gravity, fall into the liquid containing box, be stirred by the stirrer, and be mixed with the treatment liquid to avoid affecting subsequent cutting.

[0018] The full-automatic propellant fixed-length cutting device can drive the mounting rod and the cutting knife to move downward to cut the propellant, and the vertical electric push rod is not in the protective cover to ensure the safety of the work, and the rubber sleeve can reduce the circulation of gas in the circular channel, and the rubber ring plate of the air blocking ring plate can block the circular channel after cutting to reduce the circulation of gas in the circular channel.

[0019] The full-automatic propellant fixed-length cutting device can drive the mounting rod and the cutting knife to move downward to cut the propellant, and the vertical electric push rod is not in the protective cover to ensure the safety of the work, and the rubber sleeve can reduce the circulation of gas in the circular channel, and the rubber ring plate of the air blocking ring plate can block the circular channel after cutting to reduce the circulation of gas in the circular channel.

[0020] The full-automatic propellant fixed-length cutting device can drive the mounting rod and the cutting knife to move downward to cut the propellant, and the vertical electric push rod is not in the protective cover to ensure the safety of the work, and the rubber sleeve can reduce the circulation of gas in the circular channel, and the rubber ring plate of the air blocking ring plate can block the circular channel after cutting to reduce the circulation of gas in the circular channel.

[0021] The full-automatic propellant fixed-length cutting device can not only isolate and ensure the safety of operation, but also can specially receive and process the unqualified propellant. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic view of the present application;

[0023] Figure 2 It is a structural schematic view of the present application Figure 1 It is a structural schematic view of the present application after adjusting the receiving plate;

[0024] Figure 3 It is a structural schematic view of the present application Figure 1 It is a structural schematic view of the present application after removing the protective cover and the auxiliary structure;

[0025] Figure 4 It is a structural schematic view of the present application Figure 3 It is a sectional view of the present application in C-C direction;

[0026] Figure 5 It is a structural schematic view of the liquid containing box of the present application;

[0027] Figure 6 It is a structural schematic view of the cutting combination of the present application;

[0028] Figure 7 It is a structural schematic view of the vertical linear motor of the present application;

[0029] Figure 8 It is an enlarged view of the structure at B in the present application; Figure 7

[0030] It is an enlarged view of the structure at A in the present application; Figure 9 Figure 1 It is a structural schematic view of the inclined electric push rod of the present application.

[0031] Figure 10 Explanation of reference signs:

[0032] In the drawing: 1, workbench; 2, supporting leg; 3, cutting combination; 4, protective cover; 5, limiting plate; 6, liquid containing box; 7, inclined connecting plate; 8, filter frame; 9, triangular plate; 10, fixed clamp; 11, nitrogen cylinder; 12, gas discharge pipe; 13, vertical linear motor; 14, connecting plate; 15, push plate; 16, auxiliary electric push rod; 17, blocking plate; 18, receiving plate; 19, inclined electric push rod; 20, pulley; 21, adjusting linear motor; 22, push plate; 23, controller; 24, connecting electric push rod; 25, pressing plate; 26, stirrer;

[0033] In the drawing: 1, workbench; 2, supporting leg; 3, cutting combination; 4, protective cover; 5, limiting plate; 6, liquid containing box; 7, inclined connecting plate; 8, filter frame; 9, triangular plate; 10, fixed clamp; 11, nitrogen cylinder; 12, gas discharge pipe; 13, vertical linear motor; 14, connecting plate; 15, push plate; 16, auxiliary electric push rod; 17, blocking plate; 18, receiving plate; 19, inclined electric push rod; 20, pulley; 21, adjusting linear motor; 22, push plate; 23, controller; 24, connecting electric push rod; 25, pressing plate; 26, stirrer;

[0034] ​30. Mounting plate; 31. Vertical electric actuator; 32. Mounting rod; 33. Medicine cutter; 34. Air-blocking ring plate; 35. Rubber ring plate. Detailed Implementation

[0035] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid obscuring the invention.

[0036] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0037] To improve security, such as Figures 1 to 10 As shown, a fully automatic propellant length-cutting device includes a workbench 1 and a cutting assembly 3 for cutting propellant, located at the top of the workbench 1. A protective cover 4 for explosion protection is connected to the top of the workbench 1; the protective cover 4 is detachable. Two symmetrically arranged right-angled trapezoidal limiting plates 5 are connected to the top of the workbench 1 to limit the propellant. The slope and spacing of the two limiting plates 5 are pre-selected according to actual needs. The propellant to be cut is guided through a circular channel using transport equipment, a robotic arm, or manually, and introduced between the two limiting plates 5, ensuring it is fully inserted into the inner cavity of the protective cover 4. A feeding trough is provided at the top of the workbench 1 to facilitate the falling of cutting waste. The length of the feeding trough is greater than the length of the limiting plates 5, and the length and width of the liquid collection box 6 are greater than the length and width of the feeding trough to ensure complete reception. A liquid collection box 6 adapted to the feeding trough is detachably connected to the bottom of the workbench 1. Two vertical... An inclined connecting plate 7 is connected to the inner wall of the protective cover 4. An inclined filter frame 8 is connected between the inclined connecting plate 7 and the liquid container 6. The inner wall of the filter frame 8 is connected to a filter screen for filtering air. The reverse inclined design of the filter screen can filter better and reduce the possibility of filter material adhering to the filter screen and reducing the possibility of the filter screen being blocked. Two triangular plates 9 are connected between the filter frame 8 and the liquid container 6 for sealing. Ventilation channels corresponding to the filter frame 8 are opened on both sides of the liquid container 6. Multiple fixing clips 10 are connected to the top of the protective cover 4. The fixing clips 10 fix nitrogen cylinders 11. The outlet of the nitrogen cylinder 11 is connected to the protective cover 4 through a vent pipe 12 with a solenoid valve. The vent pipe 12 can also be connected to multiple branch pipes through a multi-port assembly to achieve uniform gas discharge. The opening of the vent pipe 12 is aligned with the cutting assembly 3. Before cutting, the solenoid valve of the vent pipe 12 is opened by the controller 23, so that the nitrogen in the nitrogen cylinder 11 is introduced into the protective cover 4.

[0038] The inner cavity of the liquid containing box 6 contains treatment liquid, which can be clean water. A nitrogen concentration sensor is installed on the inner wall of the liquid containing box 6 to detect the concentration of nitrogen, or can react with the propellant to form a non-dangerous substance. A stirrer 26 is installed on the side of the liquid containing box 6 to stir the treatment liquid, which can assist the mixing of the treatment liquid and the waste residue and reduce the impact of the waste residue on the subsequent process.

[0039] In order to cut, the cutting assembly 3 includes an L-shaped mounting plate 30 fixedly connected to the top end of the protective cover 4, a vertical electric push rod 31 connected to the lateral inner wall of the mounting plate 30, and a mounting rod 32 connected to the bottom end of the moving part of the vertical electric push rod 31. The bottom end of the mounting rod 32 is connected with a propellant cutting knife 33 for cutting the propellant. The side of the limiting plate 5 is provided with a cutting groove matched with the propellant cutting knife 33. The top end of the protective cover 4 is provided with a circular channel matched with the mounting rod 32. The inner wall of the circular channel is bonded with a rubber sleeve having a sealing effect. The outer periphery of the mounting rod 32 is connected with two air blocking ring plates 34. The adjacent sides of the two air blocking ring plates 34 are bonded with rubber ring plates 35. The vertical electric push rod 31 is controlled to extend, driving the mounting rod 32 and the propellant cutting knife 33 to move downward, thereby cutting the propellant. After the cutting is completed, the vertical electric push rod 31 is controlled to reset, so that the vertical electric push rod 31 is not in the protective cover 4, ensuring the safety of the work. The rubber sleeve can reduce the circulation of gas in the circular channel. After the cutting is completed, the rubber ring plates 35 of the air blocking ring plates 34 can block the circular channel, reducing the circulation of gas in the circular channel.

[0040] In order to cut, the cutting assembly 3 includes an L-shaped mounting plate 30 fixedly connected to the top end of the protective cover 4, a vertical electric push rod 31 connected to the lateral inner wall of the mounting plate 30, and a mounting rod 32 connected to the bottom end of the moving part of the vertical electric push rod 31. The bottom end of the mounting rod 32 is connected with a propellant cutting knife 33 for cutting the propellant. The side of the limiting plate 5 is provided with a cutting groove matched with the propellant cutting knife 33. The top end of the protective cover 4 is provided with a circular channel matched with the mounting rod 32. The inner wall of the circular channel is bonded with a rubber sleeve having a sealing effect. The outer periphery of the mounting rod 32 is connected with two air blocking ring plates 34. The adjacent sides of the two air blocking ring plates 34 are bonded with rubber ring plates 35. The vertical electric push rod 31 is controlled to extend, driving the mounting rod 32 and the propellant cutting knife 33 to move downward, thereby cutting the propellant. After the cutting is completed, the vertical electric push rod 31 is controlled to reset, so that the vertical electric push rod 31 is not in the protective cover 4, ensuring the safety of the work. The rubber sleeve can reduce the circulation of gas in the circular channel. After the cutting is completed, the rubber ring plates 35 of the air blocking ring plates 34 can block the circular channel, reducing the circulation of gas in the circular channel.

[0041] In order to facilitate the feeding and discharging, and can be blocked, the protection cover 4 is provided with a circular channel on both sides, the protection cover 4 is connected with an auxiliary electric push rod 16, the moving part of the auxiliary electric push rod 16 is connected with a blocking plate 17 for blocking the circular channel.

[0042] In order to receive the material, and adjust, the side of the workbench 1 is rotatably connected with a receiving plate 18, the receiving equipment for qualified propellant is arranged below the receiving plate 18, similar Figure 1 to the right side, the receiving equipment for unqualified propellant is arranged on the other side of the receiving plate 18, similar Figure 1 to the front side, the bottom end of the workbench 1 is connected with a plurality of supporting legs 2, the side of two supporting legs 2 is connected with an inclined electric push rod 19, the side of the inclined electric push rod 19 is connected with a pulley 20 for lifting the receiving plate 18, the top end of the receiving plate 18 is embedded with an adjusting linear motor 21, the moving part of the adjusting linear motor 21 is connected with a pushing plate 22 for pushing the material, one of the vertical sides of the pushing plate 22 is configured as an inclined surface, the cut finished propellant is subsequently pushed off the protection cover 4 and falls into the receiving plate 18 and the receiving equipment, if the last section of the propellant is qualified, the previous operation is repeated, if it is unqualified, the inclined electric push rod 19 is controlled to extend, so that the pulley 19 lifts the receiving plate 18, so that the receiving plate 18 is in an upward inclined state, when the material is continuously pushed, the unqualified propellant is pushed off the protection cover 4 by the pushing plate 15, and falls onto the receiving plate 18 by gravity, along the inclined angle of the receiving plate 18, and leans against the side of the workbench 1, at this time, the adjusting linear motor 21 is controlled to drive the pushing plate 22 to move, and the unqualified propellant is pushed to fall into the receiving equipment.

[0043] In order to realize full-automatic cutting of the propellant, a perspective window is embedded on the side of the protection cover 4, and a controller 23 for providing full-automatic control of the cutting assembly 3 is arranged on the side of the protection cover 4.

[0044] The electromagnetic valve, the vertical linear motor 13, the auxiliary electric push rod 16, the inclined electric push rod 19, the adjusting linear motor 21, the vertical electric push rod 31 and the controller 23 are all existing technologies, the working principle, size and model are not related to the function of the present application, so they will not be described in detail, the control mode of the present application is automatically controlled by the controller 23, the control circuit of the controller 23 can be realized by simple programming by the person skilled in the art, the power supply also belongs to the common knowledge in the art, and the present application is mainly used for protecting the mechanical device, so the control mode and the circuit connection of the present application will not be explained in detail.

[0045] Working principle

[0046] The full-automatic propellant fixed-length cutting device uses a conveying device, a mechanical arm or manual operation to pass the propellant to be cut through the circular channel, into the space between the two limiting plates 5, and make it fully into the inner cavity of the protective cover 4, after completion, control the two auxiliary electric push rods 16 to extend, so that the blocking plate 17 moves downward to block the circular channel, then set the qualified propellant receiving device below the receiving plate 18, and set the unqualified propellant collecting device on the other side of the receiving plate 18;

[0047] Before cutting, the controller 23 opens the electromagnetic valve of the air release pipe 12, so that the nitrogen in the nitrogen cylinder 11 is introduced into the protective cover 4, part of the nitrogen flows out from the ventilation channel of the liquid containing box 6, then the two auxiliary electric push rods 16 are controlled to reset, the blocking of the blocking plate 17 is removed, the moving part of the vertical linear motor 13 is controlled to move towards the receiving plate 18, when the pressing plate 25 contacts the propellant, the pressing plate 25 is manually lifted, when the pushing plate 15 contacts the propellant, the pressing plate 25 is released, the restoring force of the tension spring 24 makes the pressing plate 25 press the propellant, the vertical linear motor 13 is continuously controlled to move, then the vertical electric push rod 31 is controlled to extend, driving the mounting rod 32 and the cutting knife 33 to move downward, and then cutting the propellant, after cutting is completed, the vertical electric push rod 31 is controlled to reset, the previous operation is repeated, the cut propellant is separated from the protective cover 4 when it is pushed, and falls onto the receiving plate 18 and into the receiving device, if the last section of propellant is qualified, the previous operation is repeated, if it is unqualified, the inclined electric push rod 19 is controlled to extend, so that the pulley 19 lifts the receiving plate 18, so that the receiving plate 18 is in an upward inclined state, when the material is continuously pushed, the unqualified propellant falls onto the receiving plate 18 due to the separation of the pushing plate 15 from the protective cover 4, and leans against the side of the workbench 1 along the inclination angle of the receiving plate 18, at this time, the adjusting linear motor 21 drives the pushing plate 22 to move, and pushes the unqualified propellant to fall into the collecting device.

[0048] It should be noted that, in the present document, relational terms such as one and another and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying that there is any such relationship or order between these entities or actions.

[0049] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A full-automatic propellant fixed-length cutting device, comprising a workbench (1) and a cutting assembly (3) arranged at the top end of the workbench (1) and used for cutting propellant, and a plurality of supporting legs (2) connected to the bottom end of the workbench (1), characterized in that: The top end of the workbench (1) is connected with a protective cover (4) for explosion prevention, the top end of the workbench (1) is connected with two symmetrical right trapezoidal limiting plates (5) for limiting propellant, and the top end of the workbench (1) is provided with a discharging groove for facilitating cutting and falling of waste residues. The bottom end of the workbench (1) is detachably connected with a liquid containing box (6) matched with the discharging groove, the two vertical inner walls of the liquid containing box (6) are connected with inclined connecting plates (7), and an inclined filter frame (8) is arranged between the inclined connecting plates (7) and the liquid containing box (6), the inner wall of the filter frame (8) is connected with a filter screen for filtering air, two triangular plates (9) for plugging are connected between the filter frame (8) and the liquid containing box (6), and air passages corresponding to the filter frame (8) are formed in the two sides of the liquid containing box (6), the top end of the protective cover (4) is connected with a plurality of fixing clamps (10), a nitrogen cylinder (11) is fixed to the fixing clamps (10), the gas outlet of the nitrogen cylinder (11) is communicated with the protective cover (4) through a gas discharge pipe (12) provided with an electromagnetic valve, and the opening of the gas discharge pipe (12) is aligned with the cutting assembly (3). The cutting assembly (3) comprises an L-shaped mounting plate (30) fixedly connected to the top end of the protective cover (4), a vertical electric push rod (31) connected to the horizontal inner wall of the mounting plate (30), and a mounting rod (32) connected to the bottom end of the moving part of the vertical electric push rod (31), the bottom end of the mounting rod (32) is connected with a propellant cutting knife (33) for cutting propellant, and a cutting groove matched with the propellant cutting knife (33) is formed in the side surface of the limiting plate (5). The top end of the protective cover (4) is provided with a circular passage matched with the mounting rod (32), and a rubber sleeve with a sealing effect is bonded to the inner wall of the circular passage.

2. The full-automatic propellant fixed-length cutting device according to claim 1, characterized in that: The outer periphery of the mounting rod (32) is connected with two air blocking ring plates (34), and the adjacent side surfaces of the two air blocking ring plates (34) are bonded with rubber ring plates (35).

3. The full-automatic fixed-length cutting device for propellant according to claim 1, characterized in that: Vertical linear motors (13) for providing power for the pushing of the fixed-length propellant are mounted on the two sides of the protective cover (4), and the moving parts of the two vertical linear motors (13) are jointly connected with a C-shaped connecting plate (14).

4. The full-automatic propellant fixed-length cutting device according to claim 3, characterized in that: The bottom end of the connecting plate (14) is connected with a vertical plate, the side surface of the vertical plate is connected with a pushing plate (15) for pushing propellant, the shape of the pushing plate (15) is correspondingly arranged with the gap between the two limiting plates (5), and the top end of the pushing plate (15) is connected with a pressing plate (25) for fixing propellant through a plurality of connecting electric push rods (24).

5. The full-automatic fixed-length cutting device for propellant according to claim 1, characterized in that: Circular passages for facilitating feeding and discharging are formed in the two sides of the protective cover (4), and auxiliary electric push rods (16) are connected to the two sides of the protective cover (4), the moving parts of the auxiliary electric push rods (16) are connected with plugging plates (17) for plugging the circular passages.

6. The full-automatic fixed-length cutting device for propellant according to claim 1, characterized in that: The side surface of the workbench (1) is rotatably connected with a receiving plate (18), the side surfaces of the two supporting legs (2) are connected with inclined electric push rods (19), and the side surfaces of the inclined electric push rods (19) are connected with pulleys (20) for lifting the receiving plate (18).

7. The full-automatic fixed-length cutting device for propellant according to claim 6, characterized in that: The top end of the material receiving plate (18) is embedded with an adjusting linear motor (21), the moving part of the adjusting linear motor (21) is connected with a material pushing plate (22) for pushing material, and one vertical side of the material pushing plate (22) is configured as an inclined plane.

8. The full-automatic fixed-length cutting device for propellant according to claim 1, characterized in that: The side of the protective cover (4) is embedded with a perspective window, the side of the protective cover (4) is provided with a controller (23) for providing full-automatic control of the cutting assembly (3), the inner cavity of the liquid containing box (6) contains treatment liquid, and the side of the liquid containing box (6) is provided with a stirrer (26) for stirring the treatment liquid.

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