CN111267288A - An automatic compensation filling device for isostatic pressing of energetic materials - Google Patents

Abstract

The invention discloses an automatic compensation filling device for isostatic pressing of energetic materials, and belongs to the technical field of energetic materials. Including frame, barrel gripper assembly, lifting table assembly, barrel, lifting hopper assembly, hopper, elastic mold and vibrating table, the lifting table assembly and vibrating table are installed in one side of the frame, and the barrel is placed in The upper part of the lifting hopper assembly, the elastic mold is installed on the vibrating table, the lifting hopper assembly is slidably installed on the frame above the elastic mold, the hopper is installed on the lifting hopper assembly, and the bottom discharge port of the hopper is connected to the feeding of the elastic mold The openings are opposite to each other, and the material barrel gripper assembly is slidably installed on the top of the frame, and is used for grabbing the material barrel and moving the material barrel above the top discharge opening of the material hopper. The invention has a novel structure and adopts a new design method. The invention realizes the automatic feeding, unloading and filling operations of energetic materials, and effectively prevents the occurrence of dust and powder leakage during the filling process.

Description

An automatic compensation filling device for isostatic pressing of energetic materials

technical field

The invention relates to the technical field of energetic materials, and more particularly to an automatic compensation filling device for isostatic pressing of energetic materials.

Background technique

Compared with traditional energetic material molding products, isostatic pressing has the unique advantages of high density and uniformity and near-net shape. The basic principle is to place the powder energy-containing material pre-packaged in an elastic mold such as rubber or plastic in a closed container filled with liquid, and the deformation of the elastic mold under the pressure of an isotropic liquid medium is transmitted to the mold. Powder an energetic material so that it is compacted into a dense body or part with a certain density and strength.

Since the surface of the outer mold is subjected to the same pressure during the isostatic pressing process, in order to avoid inconsistent shrinkage of different parts of the molded blank due to the uneven density of the mold filler, which affects the machining allowance of the subsequent blank, it is required that the density of the elastic mold filler be as uniform as possible .

The traditional operation method of isostatic pressing of energetic materials is manual dumping, during which there are unfavorable factors such as easy generation of dust, large environmental pollution and high labor intensity. The elastic mold is fixed on the vibrating table for packing, and the powder energetic material is densely and evenly distributed by the vibration of the vibrator. During this process, with the gradual vibration and compaction of the powdery energetic material in the elastic mold, the excess powdery energetic material in the silo is constantly compensated for feeding, which effectively ensures the consistency of the filler density. However, when the filling is over, that is, when the mold cavity has been completely filled with powder, the separation of the silo discharge port and the elastic mold feed port will inevitably lead to powder leakage and dust, which will cause environmental pollution and increase cleaning and sprinkling. operation process, and at the same time cause harm to the physical and mental health of the operator. In addition, energetic material powder is usually composed of particles of different particle sizes, and it is difficult to avoid particle size segregation in the vacuum adsorption feeding process applied in industry, which promotes the stratification of powder particles, which is disadvantageous to its subsequent molding performance. influences.

In summary, in order to give full play to the advantages of isostatic pressing near net shape and promote the popularization and application of isostatic pressing technology, it is urgent to provide an automatic isostatic pressing filling device for energetic materials that is easy to operate, environmentally friendly and maintains stable powder properties. .

SUMMARY OF THE INVENTION

The invention is an automatic compensation filling device for isostatic pressing of energetic materials, which has the advantages of uniform packing density of energetic materials and no particle size segregation, and overcomes the disadvantages of dust and high labor intensity in the traditional packing process. It is suitable for the flexible production organization mode of "multi-variety, small batch and intermittent", which can effectively improve the quality consistency and production efficiency of isostatic pressing parts of energetic materials.

In order to achieve the above object, the present invention adopts the following technical solutions:

An automatic compensation filling device for isostatic pressing of energetic materials, including a frame, a barrel gripper assembly, a lifting material table assembly, a barrel, a lifting material hopper assembly, a material hopper, an elastic mold and a vibrating table, and a lifting material table The components and the vibrating table are installed in one side of the frame, the barrel is placed on the upper part of the lifting table assembly, the elastic mold is installed on the vibration table, the lifting hopper assembly is slidably installed on the frame above the elastic mold, and the hopper is installed on the lifting table. On the hopper assembly, and the bottom discharge port of the hopper is opposite to the feed port of the elastic mold, the barrel gripper assembly is slidably installed on the top of the frame for grabbing the barrel and moving the barrel to the top of the hopper Above the discharge opening.

The automatic compensation filling device for isostatic pressing of energetic material of the present invention is used for automatic feeding, unloading and filling of energetic material powder. After vibrating, make the energetic material powder packing dense, uniform and full. Mainly through the barrel gripper assembly, the barrel on the lifting hopper assembly is grasped and turned over, and then moved to the upper hopper set on the lifting hopper assembly, and then the lifting hopper assembly is raised, so that the material in the barrel is unloaded through the top of the hopper. The port enters the hopper, and then the lifting and lowering hopper assembly descends, so that the material in the hopper enters the elastic mold through the bottom discharge port of the hopper, and the energetic material powder is automatically loaded into the elastic mold.

Further, the cartridge gripper assembly includes a first displacement assembly, a first mounting frame, a cartridge positioning plate, a claw assembly and a sealing cover, the first displacement assembly is installed on the top of the frame, and the first mounting frame is movably installed. On the first displacement component, the barrel positioning plate is in the shape of a circular ring, the inner ring of the barrel positioning plate is used to fasten the barrel, and two oppositely arranged on the barrel positioning plate are installed for grabbing the barrel The holding claw assembly and two oppositely arranged rotating shafts used to drive the barrel positioning plate to turn over, the connecting line between the two holding claw assemblies and the two rotating shafts is a cross, the sealing cover is funnel-shaped, and the big end of the sealing cover is positioned with the barrel The disc is sealed and connected, the small end of the sealing cover is connected with a vertical discharge section, the vertical discharge section is provided with a valve plate assembly, and the barrel positioning plate is rotatably connected to the first mounting frame through the rotating shafts provided on both sides, and The rotating shaft on one side is connected with the rotating motor arranged on the first mounting frame.

Further, the holding claw assembly includes a cylinder, an arc-shaped indenter matched with the side wall of the material cylinder, and an anti-static rubber pad, the cylinder is installed on the lower part of the positioning plate of the material cylinder, and the arc-shaped indenter is installed on the telescopic rod of the cylinder. , the anti-static rubber pad is installed on the arc pressure head.

Further, the first displacement assembly includes two first sliding rails, two connecting rods, two supporting rods, a translation motor, a first screw rod, a first nut and a first bearing seat, and the two first sliding rails pass through Two connecting rods are arranged horizontally on the top of the frame, two supporting rods are respectively fixed between the frame and the connecting rods, the translation motor is fixed on one of the connecting rods, and the first bearing seat is relatively fixed on the other one. On the connecting rod, one end of the first screw rod is arranged in the first bearing seat, the other end of the first screw rod is connected with the output end of the translation motor, and the first nut is screwed on the screw rod.

Further, the first mounting frame includes a top frame and two mounting arms connected perpendicular to the top frame and installed on both sides of the first screw rod, the top frame is mounted on the first nut, and both ends of the top frame are slidably connected to the first screw rod. On a slide rail, one of the rotating shafts is connected in one mounting arm, and the other rotating shaft is connected to the other mounting arm through the shaft, and is connected with the rotating motor arranged on the mounting arm.

Further, the valve plate assembly includes a valve plate, a spring, a locking rod and a guide fixing cavity, the valve plate is conical and the diameter of the outer edge of the valve plate is larger than the diameter of the small end of the sealing cover, and the guide fixing cavity is fixed in the vertical outlet. On the side wall of the material section, the locking rod is slidably connected in the guide and fixed cavity, the top of the locking rod is fixed on the bottom of the valve plate, the bottom of the locking rod is provided with a clamping table, the spring is located in the guide and fixed cavity, and the spring passes through. The card table is sleeved on the locking rod.

Further, the lifting material table assembly includes a lower cavity and an upper cover, a lifting rodless cylinder is installed on the side wall of the lower cavity, a connecting plate is fixed on the side wall of the upper cover, and the connecting plate is fixedly connected to the lifting and lowering device. On the slider of the rod cylinder, a guide sleeve is arranged in the lower cavity, and the guide sleeve is slidably connected with a lifting guide rod. groove.

Further, the lifting hopper assembly includes two second sliding rails, a support frame, a lifting motor, a second screw, a second nut and a second bearing seat, and the two second sliding rails are vertically arranged on the frame to support The frame is slidably connected to the second sliding rail, the second bearing seat is fixed on the frame at the top of the second sliding rail, the lifting motor is correspondingly fixed on the frame at the bottom end of the second bearing seat, and one end of the second screw is arranged on the first In the second rotating shaft seat, the other end of the second screw is connected with the output end of the lifting motor, the second nut is screwed on the second screw, the second nut is fixed on the side wall of the support frame, and the hopper is fixed on the support frame.

Further, the support frame is provided with a through groove for fixing the hopper, the outer diameter of the hopper is less than or equal to the inner diameter of the through groove, and the side wall of the hopper is provided with a clamping table, the hopper is arranged through the through groove and passes through the clamping table. It is clamped on the support frame, and a load cell is installed between the clamp table and the support frame.

Further, the bottom of the hopper is tapered, a top rod matched with the locking rod is installed in the discharge opening at the top of the hopper, and a plug-in valve is installed at the bottom of the hopper.

Compared with the prior art, the present invention has the following beneficial effects:

The present invention has a novel structure and adopts a new design method. The present invention realizes the automatic feeding, unloading and filling operations of energetic materials. The present invention realizes the automatic filling operation of energetic materials, and ensures that the materials in the barrel are added to the material. When in the mold, due to the addition of the valve plate and the sealing cover and other structures, it is ensured that the material in the barrel first passes through the transfer station hopper and then enters the rubber mold, and the whole process will not produce dust and overflow leakage, which is significantly improved. The working environment has significantly improved the intrinsic safety and occupational hygiene level of energetic material filling operations.

At the same time, it ensures that the density of the mold filler is uniform and that no powder stratification occurs. At the same time, the transportation of energetic material powder is limited in a closed environment, thus preventing dust and leakage of energetic material powder, and significantly improving the intrinsic safety and occupational hygiene level of energetic material filling operation.

Description of drawings

1 is a schematic structural diagram of an automatic compensation filling device for isostatic pressing of energetic materials according to the present invention;

2 is a schematic structural diagram of a lifting hopper assembly of an automatic compensation filling device for isostatic pressing of energetic materials according to the present invention;

3 is a schematic structural diagram of a barrel gripper assembly of an automatic compensation filling device for isostatic pressing of energetic materials according to the present invention;

Fig. 4 is a kind of structural schematic diagram of the holding claw assembly holding the barrel of the automatic compensation filling device for isostatic pressing of energetic materials according to the present invention;

5 is a schematic diagram of a weighing structure between a hopper and a support frame of an automatic compensation filling device for isostatic pressing of energetic materials according to the present invention;

6 is a top view of a hopper of an automatic compensation filling device for isostatic pressing of energetic materials according to the present invention and a barrel connected with a sealing cover;

7 is a schematic structural diagram of a hopper of an automatic compensation filling device for isostatic pressing of energetic materials and a barrel connected with a sealing cover according to the present invention;

Fig. 8 is a partial enlarged view of A in Fig. 7;

9 is a schematic structural diagram of a lift hopper assembly of an automatic compensation filling device for isostatic pressing of energetic materials according to the present invention.

Marking in the figure: 1-frame, 2-installation arm, 3-top frame, 4-first slide rail, 5-connecting rod, 6-translation motor, 7-first bearing seat, 8-first screw rod, 9 -Second bearing seat, 10-Rotary motor, 11-Second slide rail, 12-Barrel, 13-Lifting table assembly, 14-Vibrating table, 15-Elastic mold, 16-Hopper, 17-Lower cavity, 18- Lifting guide rod, 19- Upper cover, 20- Lifting rodless cylinder, 21- Connecting plate, 22- Barrel positioning plate, 23- Rotary shaft, 24- Air cylinder, 25- Arc indenter, 26- Anti-static glue Gasket, 27-vertical discharge section, 28-first nut, 29-sealing cover, 30-second nut, 31-support frame, 32-insert valve, 33-card table, 34-load cell, 35 - Valve plate, 36- Lock lever, 37- Guide fixed cavity, 38- Spring, 39- Ejector rod, 40- Lift motor.

Detailed ways

The present invention will be further described below with reference to the embodiments, and the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, any other used embodiments obtained by those of ordinary skill in the art without creative work all belong to the protection scope of the present invention.

Embodiment 1:

As shown in Figures 1-9, an automatic compensation filling device for isostatic pressing of energetic materials includes a frame 1, a barrel gripper assembly, a lifting table assembly 13, a barrel 12, a lifting hopper assembly, The hopper 16, the elastic mold 15 and the vibrating table 14, the frame 1 is supported and positioned as a whole system, and the lower bottom plate is fixed to the ground; the barrel 12 is used to store the raw materials of energetic material powder. The hopper 16 is used for temporary storage and automatic unloading of energetic material powder, which can move up and down, and an automatic plug valve 32 is installed at the bottom. The lifting table assembly 13 and the vibrating table 14 are installed in one side of the frame 1, the barrel 12 is placed on the upper part of the lifting table assembly 13, the elastic mold 15 is installed on the vibration table 14, and the lifting hopper assembly is slidingly installed on the elastic mold On the frame 1 above the 15, the hopper 16 is installed on the lifting hopper assembly, and the bottom discharge port of the hopper 16 is opposite to the feeding port of the elastic mold 15, and the barrel gripper assembly is slidably installed on the top of the frame 1. , used to grab the barrel 12 and move the barrel 12 to above the top discharge opening of the hopper 16 . The elastic mold 15 in this embodiment is a rubber mold or a plastic mold made of elastic materials such as rubber or plastic.

The automatic compensation filling device for isostatic pressing of energetic material of the present invention is used for automatic feeding, unloading and filling of energetic material powder, and the energetic material powder is automatically loaded into the elastic mold 15 through automatic control, and vibrated After the stage 14 is vibrated, the filling of the energetic material powder is made dense, uniform and full. The barrel 12 on the lifting hopper assembly is mainly grasped and turned over by the barrel gripper assembly, and then moved to the upper side of the hopper 16 set on the lifting hopper assembly, and then the lifting hopper assembly is raised, so that the material in the barrel 12 passes through the hopper. The top discharge port of 16 enters the hopper 16, and then the lifting and lowering hopper assembly descends, so that the material in the hopper 16 enters the elastic mold 15 through the bottom discharge port of the hopper 16, and the energetic material powder is automatically loaded into the elastic mold 15. .

Example 2

As shown in FIG. 3 , this embodiment is further optimized on the basis of Embodiment 1, and the similarities will not be repeated. In this embodiment, the barrel gripper assembly includes a first displacement assembly, a first installation Rack, barrel positioning plate 22, claw assembly and sealing cover 29, the first displacement assembly is installed on the top of the rack 1, the first mounting frame is movably installed on the first displacement assembly, and the barrel positioning plate 22 is annular , the inner ring of the barrel positioning plate 22 is used to be fastened on the barrel 12, and the barrel positioning plate 22 is installed with two oppositely arranged and used for grabbing the barrel 12. Claw assemblies and two oppositely arranged for The rotating shaft 23 that drives the cylinder positioning plate 22 to turn over, the connecting line between the two claw assemblies and the two rotating shafts 23 is a cross, the sealing cover 29 is funnel-shaped, and the big end of the sealing cover 29 is sealed with the cylinder positioning plate 22. The small end of the cover 29 is connected with a vertical discharge section 27, the vertical discharge section 27 is provided with a valve plate 35 assembly, and the barrel positioning plate 22 is rotatably connected to the first mounting frame through the rotating shafts 23 provided on both sides, And the rotating shaft 23 on one side is connected with the rotating electric machine 10 arranged on the first mounting frame.

In this embodiment, the first displacement component mainly plays the role of a support and a track, because the barrel gripper component needs to grab the barrel 12 from the lifting table component 13 through the claw component and then move it to the hopper 16 Above, so, the first displacement component is a displacement mechanism. The first mounting frame is used to install components such as the filling cylinder positioning plate 22, the claw assembly and the sealing cover 29, and the first mounting frame is movably connected to the first displacement assembly.

When it is working, the lifting table assembly 13 rises, which drives the barrel 12 (unpacking) to rise. When the barrel 12 rises into the barrel positioning plate 22 and is in sealing contact with the sealing cover 29, the barrel 12 holds the claw. The assembly moves to fasten the barrel 12. At this time, the discharge port of the barrel 12 is in sealing contact with the sealing cover 29, and then driven by the rotating motor 10, the barrel positioning plate 22, the claw assembly, the sealing cover 29 and the The barrel 12 is turned over 180° under the drive of the rotating shaft 23, so that the material in the barrel 12 automatically flows into the inverted sealing cover 29 under the action of gravity; then the first mounting frame is moved to the hopper on the first displacement component 16 above.

Example 3

As shown in FIG. 4 , this embodiment is further optimized on the basis of Embodiment 2, and the similarities will not be repeated here. The matching arc-shaped indenter 25 and the anti-static rubber pad 26, the cylinder 24 is installed on the lower part of the barrel positioning plate 22, the arc-shaped indenter 25 is installed on the telescopic rod of the cylinder 24, and the anti-static rubber pad 26 is installed on the arc-shaped pressure head 25. This embodiment mainly provides the specific structure of the claw assembly. The arc-shaped indenter 25 is stretched and retracted under the action of the air cylinder 24 to complete the clamping and fixing of the barrel 12. The anti-static rubber pad 26 plays the role of anti-static and safety, and secondly, it can make the arc-shaped indenter 25 and the side wall of the barrel 12 more tightly fastened, which is helpful for the holding of the barrel 12. At the same time, it can also play a certain buffering effect to prevent the arc-shaped indenter 25 or the barrel 12 from being damaged.

Example 4

As shown in FIG. 3 , this embodiment is further optimized on the basis of Embodiment 3, and the similarities will not be repeated. In this embodiment, the first displacement assembly includes two first sliding rails 4, two A connecting rod 5, two supporting rods, a translation motor 6, a first screw 8, a first nut 28 and a first bearing seat 7, and two first sliding rails 4 are horizontally arranged on the rack 1 through the two connecting rods 5 On the top of the frame, two support rods are respectively fixed between the frame 1 and the connecting rod 5, the translation motor 6 is fixed on one of the connecting rods 5, and the first bearing seat 7 is relatively fixed on the other connecting rod 5 One end of the first screw 8 is set in the first bearing seat 7, the other end of the first screw 8 is connected with the output end of the translation motor 6, and the first nut 28 is screwed on the screw.

This embodiment provides a specific implementation of the first displacement assembly. Two first sliding rails 4 are arranged on the top of the rack 1 , the first sliding rails 4 and the connecting rod 5 are rectangular, and the connecting rod 5 is supported by The rod is further supported and fixed. The stability of the first slide rail 4 is ensured, because it has to support the weight of the first mounting frame and the material barrel 12 . The specific structure that realizes the left and right movement of the first mounting frame and other components on the first displacement assembly is the structure of the first screw 8, the translation motor 6 and the first nut 28, which is realized by controlling the forward and reverse rotation of the translation motor 6. The first mounting bracket moves left and right on the first screw 8 .

It should be noted that, the first displacement component can also be replaced by other structures, such as some large-range cylinders 24 or electric push rods and other mechanisms that can realize displacement, which will not be repeated here.

Example 5

As shown in FIG. 1 , this embodiment is further optimized on the basis of Embodiment 4, and the similarities will not be repeated. In this embodiment, the first mounting frame includes a top frame 3 and a vertical frame 3 The two mounting arms 2 are connected and installed on both sides of the first screw 8, the top frame 3 is mounted on the first nut 28, the two ends of the top frame 3 are slidably connected to the first slide rail 4, and one of the rotating shafts 23 is pivotally connected In one mounting arm 2 , the other rotating shaft 23 is connected to the other mounting arm 2 through the shaft, and is connected to the rotating electric machine 10 provided on the mounting arm 2 .

This embodiment provides a structure of a first mounting frame. The first mounting frame is in the shape of an inverted U as a whole, and is composed of a top frame 3 and mounting arms 2 arranged on both sides of the top frame 3. The distance between them should be sufficient to install the filling cylinder positioning plate 22, and at the same time, the mounting arm 2 is rotatably connected with the rotating shaft 23 on the material cylinder positioning plate 22 to provide support for the material cylinder 12 to be turned 180°.

At the same time, in order to enable the claw assembly on the first mounting frame to smoothly move on the first slide rail 4 after grabbing the material cylinder 12, both ends of the top frame 3 are slidably mounted on the first slide rail 4, so that Two mounting arms 2 are mounted near both ends of the top wall. And in order to reduce the self-weight, many gaps are opened on the top wall and the placement arm to meet the rigidity and connection requirements.

Example 6

As shown in FIGS. 7 and 8 , this embodiment is further optimized on the basis of Embodiment 5, and the similarities will not be repeated. In this embodiment, the valve plate 35 assembly includes a valve plate 35, a spring 38, The locking rod 36 and the guide fixing cavity 37, the valve plate 35 is tapered and the diameter of the outer edge of the valve plate 35 is larger than the diameter of the small end of the sealing cover 29, the guide fixing cavity 37 is fixed on the side wall of the vertical discharge section 27, The locking rod 36 is slidably connected in the guide and fixed cavity 37, the top of the locking rod 36 is fixed on the bottom of the valve plate 35, the bottom of the locking rod 36 is provided with a clamping table 33, the spring 38 is located in the guide and fixed cavity 37, and the spring 38 is sleeved on the locking rod 36 through the clamping table 33 .

The valve plate 35 assembly is a key innovation of this patent, and its working principle is as follows: when the hopper 16 does not rise, the valve plate 35 has a conical surface and the diameter of the outer edge of the valve plate 35 is larger than the diameter of the small end of the sealing cover 29, so the sealing The vertical discharge section 27 of the cover 29 is sealed by the valve plate 35, and the spring 38 is located in the guide fixed cavity 37, and the spring 38 is sleeved on the locking rod 36 through the clamping table 33. At this time, the spring 38 is compressed. Therefore, under the elastic force of the spring 38, the locking rod 36 will drive the valve plate 35 to move down, and yes, the outer edge of the valve plate 35 is tightly fastened to the conical side wall of the sealing cover 29, so that the sealing cover The material in 29 will not leak. The conical surface of the valve plate 35 also helps the material on the conical surface to flow along the inclined surface to the funnel-shaped inclined surface of the sealing cover 29, thereby facilitating the outflow when the valve plate 35 is opened.

When the material in the sealing cover 29 needs to flow out into the hopper 16, it is only necessary to open the valve plate 35. The principle of opening the valve plate 35 is as follows: when the sealing cover 29 and the material barrel 12 move to the top of the hopper 16 together, the vertical discharge section 27 of the sealing cover 29 is set downward, and the material in the sealing cover 29 wants to enter the hopper 16 When the hopper 16 moves upward, the bottom of the hopper 16 is tapered, the top discharge port of the hopper 16 is equipped with a top rod 39 that matches the locking rod 36, and a plug-in valve is installed at the bottom of the hopper 16 32. The ejector rod 39 on the top of the hopper 16 will abut against the lower part of the clamping table 33 of the locking rod 36, so that the locking rod 36 moves up, and the locking rod 36 drives the valve plate 35 to move up. At this time, the spring 38 is compressed, and the hopper The discharge port at the top of 16 is sleeved on the vertical discharge section 27 of the sealing cover 29 , and the material in the sealing cover 29 flows out from the gap between the outer edge of the valve plate 35 and the funnel-shaped side wall of the sealing cover 29 . After the feeding of the material barrel is completed, the hopper 16 is lowered, the spring 38 drives the valve plate 35 to reset, and the gap between the valve plate 35 and the sealing cover 29 is automatically sealed.

Example 7

As shown in FIG. 2 , this embodiment is further optimized on the basis of Embodiment 6, and the similarities will not be repeated. In this embodiment, the lifting table assembly 13 includes a lower cavity 17 and an upper cover 19 , a lifting rodless cylinder 20 is installed on the side wall of the lower cavity 17, a connecting plate 21 is fixed on the side wall of the upper cover 19, and the connecting plate 21 is fixedly connected to the slider of the lifting rodless cylinder 20. The body 17 is provided with a guide sleeve, the guide sleeve is slidably connected with a lift guide rod 18 , the top of the lift guide rod 18 is fixedly connected to the upper cover 19 , and a fixing groove for fixing the material cylinder 12 is opened on the top of the upper cover 19 .

This embodiment provides a specific structure of a lifting table assembly 13, which is mainly used for lifting and positioning of the barrel, driven by a lifting rodless cylinder 20, and a steel step behind it, which is convenient for manual feeding. The main purpose of adopting the lifting rodless cylinder 20 is to install the starting components inside the lower cavity 17 and the upper cover 19, which is convenient for on-site management, and at the same time, the lifting guide rod 18 plays a role of stable guidance.

Example 8

As shown in Figures 6 and 9, this embodiment is further optimized on the basis of Embodiment 7, and the similarities will not be repeated. In this embodiment, the lifting hopper assembly includes two second sliding rails 11, The support frame 31 , the lift motor 40 , the second screw rod, the second nut 30 and the second bearing seat 9 , the two second slide rails 11 are vertically arranged on the frame 1 , and the support frame 31 is slidably connected to the second slide rail 11 The second bearing seat 9 is fixed on the frame 1 at the top of the second slide rail 11, the lifting motor 40 is correspondingly fixed on the frame 1 at the bottom end of the second bearing seat 9, and one end of the second screw is arranged on the second rotating shaft 23, the other end of the second screw is connected to the output end of the lifting motor 40, the second nut 30 is screwed on the second screw, the second nut 30 is fixed on the side wall of the support frame 31, and the hopper 16 is fixed on the support on rack 31.

This embodiment provides a specific structure of a lifting hopper assembly, which mainly provides power and support for the lifting and lowering of the hopper 16. The forward and reverse rotation of the lifting motor 40 can drive the lifting and lowering of the support frame 31, thereby realizing the lifting and lowering of the hopper 16. , the rise of the hopper 16 is mainly to realize the material in the sealing cover 29 into the hopper 16, and its working process has been described above, and will not be repeated here. In the elastic mold 15, therefore, when the hopper 16 is lowered, the discharge port at the bottom of the hopper 16 is connected to the feed port of the elastic mold 15; The energy material powder automatically enters the elastic mold 15 and is vibrated evenly. The plug-in valve 32 adopts a plug-in structure. When the material in the hopper 16 stops flowing into the elastic mold 15, the material will not fall only by blocking the discharge port of the hopper 16 with a plug-in plate.

Example 9

As shown in FIG. 5 , this embodiment is further optimized on the basis of Embodiment 8, and the similarities will not be repeated. In this embodiment, the support frame 31 is provided with a through groove for fixing the hopper 16 . The outer diameter of the hopper 16 is less than or equal to the inner diameter of the through groove, and a clamping table 33 is arranged on the side wall of the hopper 16 . A load cell 34 is installed between 33 and the support frame 31 .

This embodiment provides a structure of the support frame 31, and the load cell 34 is installed between the chuck table 33 and the support frame 31 to ensure that the discharge port of the hopper 16 is always inserted into the elastic mold during the filling process of the energetic material. 15. In the feeding port, the flap valve 32 is in the open state, which can automatically compensate for the blanking, so that the filling of the energetic material powder is dense, uniform and full. At the same time, a load cell 34 is provided under the chuck table 33 of the hopper 16, which can monitor the weight of the energetic material in real time.

When the vibrating table 14 vibrates for many times, but the value displayed by the load cell 34 does not change, the filling ends, and the software records and stores the weight of the mold filling. Then the flap valve 32 is closed, the hopper 16 rises, and a little energetic material remaining in the discharge port flows into the mold, and the filling is completed.

The workflow of utilizing the device of the present invention is as follows:

Filling preparation: transport the packaged barrel 12 to the fixing groove of the upper cover 19 of the lifting table assembly 13 and unpack the packaging, and at the same time complete the assembly of the elastic mold 15 and the auxiliary positioning tool, and fix it with the vibrating table 14, the elastic mold 15 The feed port is aligned with the discharge port of the hopper 16;

Automatic feeding: The barrel gripper assembly is moved to the top of the barrel and initially aligned with the barrel. The lifting table assembly 13 lifts the barrel, and the cylinder 24 of the claw assembly moves to position and hold the barrel tightly.

Lift the material table assembly 13, the rotary motor 10 drives the material barrel to rotate 180°, and the translation motor 6 drives the material barrel to move to the top of the material hopper 16. The elevating motor 40 drives the hopper 16 to rise, and is in contact with the sealing cover 29 . The top discharge opening of the hopper 16 and the vertical discharge section 27 of the sealing cover 29 are sealed by a rubber gasket. The valve plate 35 is opened by the ejector rod 39, so that the energetic material powder in the barrel is poured into the hopper 16, and the plug-in valve 32 at the bottom of the hopper 16 is closed at this time.

After the feeding of the barrel is completed, the hopper 16 is lowered, the spring 38 drives the valve plate 35 to reset, and the feeding port is automatically sealed. Driven by the rotating motor 10, the barrel rotates 180° and returns to the reclaiming barrel station. At this time, the lifting and lowering table assembly 13 rises, the cylinder 24 of the claw-holding assembly is released, and the empty barrel is lowered. The assembly is driven by the translation motor 6 to move to the next barrel station, and the above-mentioned actions are repeated until all the barrels are poured into the hopper 16 .

Automatic feeding: the hopper 16 is lowered, so that the discharge port at the bottom of the hopper 16 is connected with the feeding port of the elastic mold 15; then the plug valve 32 and the vibrating table 14 installed at the bottom of the hopper 16 are opened, and the energetic material powder automatically enters Elastic mold 15 and tapped evenly. The plug-in valve 32 adopts a plug-in structure. When the material in the hopper 16 stops flowing into the elastic mold 15, it is only necessary to block the discharge port of the hopper 16 with a plug to prevent the material from falling.

Filling process: During the filling process of energetic material, the discharge port of the hopper 16 is always inserted into the feed port of the elastic mold 15, and the plug-in valve 32 is in the open state, which can automatically compensate for the blanking, so that the energetic material powder is filled densely and uniformly and full. At the same time, a load cell 34 is provided under the chuck table 33 of the hopper 16, which can monitor the weight of the energetic material in real time.

End of filling: when the vibrating table 14 vibrates for many times, but the value displayed by the load cell 34 does not change, the filling ends, and the software records and stores the weight of the mold filling. Then the flapper valve 32 is closed, the hopper 16 rises, and a little energetic material remaining in the discharge port flows into the mold, and the filling is completed.

Object transfer and residual material collection: the elastic mold 15 is separated from the vibrating table 14, and the elastic mold 15 is transferred to the next station. When the remaining material in the hopper 16 is collected, place an empty barrel on the vibrating table 14 and align with the discharge port of the hopper 16. At this time, the hopper 16 will automatically descend, and the flap valve 32 will be opened to discharge the excess material. into the barrel.

Due to the flammable and explosive characteristics of the energetic material powder, explosion-proof products are selected in the design of this system. The motors used are all explosion-proof motors. The parts in contact with the energetic material powder are all aluminum alloys or other non-ferrous metals. The cable wiring is hidden in the In the rectangular tube of the system bracket, it meets the requirements of the specification for use in explosion-proof places.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (10)

1. An automatic compensation filling device for isostatic compaction of energetic materials is characterized by comprising a rack (1), a charging barrel gripping apparatus assembly, a lifting material platform assembly (13), a charging barrel (12), a lifting hopper assembly, a hopper (16), an elastic die (15) and a vibration platform (14), wherein the lifting material platform assembly (13) and the vibration platform (14) are arranged in one side of the rack (1), the charging barrel (12) is arranged at the upper part of the lifting material platform assembly (13), the elastic die (15) is arranged on the vibration platform (14), the lifting hopper assembly is slidably arranged on the rack (1) above the elastic die (15), the hopper (16) is arranged on the lifting hopper assembly, and the bottom discharge hole of the hopper (16) is opposite to the feed inlet of the elastic die (15), the charging barrel gripping apparatus component is arranged at the top of the frame (1) in a sliding way, for grasping the cartridge (12) and moving the cartridge (12) over the top feed opening of the hopper (16).

2. The automatic compensation packing device for isostatic compaction of energetic materials as claimed in claim 1, wherein the cartridge gripper assembly comprises a first displacement assembly, a first mounting frame, a cartridge positioning disk (22), a clamping jaw assembly and a sealing cover (29), the first displacement assembly is mounted at the top of the frame (1), the first mounting frame is movably mounted on the first displacement assembly, the cartridge positioning disk (22) is circular, the inner ring of the cartridge positioning disk (22) is used for being buckled on the cartridge (12), the cartridge positioning disk (22) is mounted with two clamping jaw assemblies which are oppositely arranged and used for gripping the cartridge (12) and two rotating shafts (23) which are oppositely arranged and used for driving the cartridge positioning disk (22) to turn, the connecting line of the two clamping jaw assemblies and the two rotating shafts (23) is cross, the sealing cover (29) is funnel-shaped, the large end of the sealing cover (29) is hermetically connected with the cartridge positioning disk (22), the tip of sealed cowling (29) is connected with vertical ejection of compact section (27), vertical ejection of compact section (27) are provided with valve plate (35) subassembly, and feed cylinder positioning disk (22) rotate through pivot (23) that both sides set up and connect on first mounting bracket, and wherein pivot (23) and the rotating electrical machines (10) of setting on first mounting bracket of one side are connected.

3. The automatic compensation filling device for isostatic pressing of energetic materials as claimed in claim 2, wherein said clamping jaw assembly comprises a cylinder (24), an arc-shaped pressing head (25) matched with the side wall of the charging barrel (12) and an anti-static rubber pad (26), the cylinder (24) is installed at the lower part of the positioning disk (22) of the charging barrel, the arc-shaped pressing head (25) is installed on the telescopic rod of the cylinder (24), and the anti-static rubber pad (26) is installed on the arc-shaped pressing head (25).

4. The automatic compensation filling device for isostatic pressing of energetic materials as claimed in claim 2, wherein the first displacement assembly comprises two first sliding rails (4), two connecting rods (5), two supporting rods, a translation motor (6), a first screw (8), a first nut (28) and a first bearing seat (7), the two first sliding rails (4) are horizontally arranged on the top of the frame (1) through the two connecting rods (5), the two supporting rods are respectively fixed between the frame (1) and the connecting rods (5), the translation motor (6) is fixed on one connecting rod (5), the first bearing seat (7) is oppositely fixed on the other connecting rod (5), one end of the first screw (8) is arranged in the first bearing seat (7), and the other end of the first screw (8) is connected with the output end of the translation motor (6), a first nut (28) is threaded onto the threaded rod.

5. The automatic compensation packing device for isostatic pressing of energetic materials as claimed in claim 4, wherein said first mounting frame comprises a top frame (3) and two mounting arms (2) connected perpendicular to the top frame (3) and mounted on both sides of the first screw (8), the top frame (3) is mounted on the first nut (28), both ends of the top frame (3) are slidably connected on the first slide rail (4), one of the shafts (23) is connected in one mounting arm (2) by a shaft, the other shaft (23) is connected in the other mounting arm (2) by a shaft, and is connected with the rotating motor (10) arranged on the mounting arm (2).

6. The automatic compensation packing device for isostatic pressing of energetic materials as claimed in claim 2, wherein said valve plate (35) assembly comprises a valve plate (35), a spring (38), a locking rod (36) and a guiding fixing cavity (37), the valve plate (35) is conical and the diameter of the outer edge of the valve plate (35) is larger than the diameter of the small end of the sealing cover (29), the guiding fixing cavity (37) is fixed on the side wall of the vertical discharging section (27), the locking rod (36) is slidably connected in the guiding fixing cavity (37), the top of the locking rod (36) is fixed at the bottom of the valve plate (35), the bottom of the locking rod (36) is provided with a clamping table (33), the spring (38) is located in the guiding fixing cavity (37), and the spring (38) is sleeved on the locking rod (36) through the clamping table (33).

7. The automatic compensation filling device for isostatic pressing of energetic materials as claimed in any one of claims 1-6, wherein the lifting material table assembly (13) comprises a lower cavity (17) and an upper cover (19), a lifting rodless cylinder (20) is installed on the side wall in the lower cavity (17), a connecting plate (21) is fixed on the side wall of the upper cover (19), the connecting plate (21) is fixedly connected to the slider of the lifting rodless cylinder (20), a guide sleeve is arranged in the lower cavity (17), a lifting guide rod (18) is slidably connected in the guide sleeve, the top of the lifting guide rod (18) is fixedly connected to the upper cover (19), and a fixing groove for fixing the charging barrel (12) is formed in the top of the upper cover (19).

8. The automatic compensation filling device for isostatic compaction of energetic materials according to any one of claims 1 to 6, wherein the lifting hopper assembly comprises two second slide rails (11), a support frame (31), a lifting motor (40), a second screw, a second nut (30) and a second bearing seat (9), the two second slide rails (11) are vertically arranged on the frame (1), the support frame (31) is slidably connected to the second slide rails (11), the second bearing seat (9) is fixed on the frame (1) at the top end of the second slide rails (11), the lifting motor (40) is correspondingly fixed on the frame (1) at the bottom end of the second bearing seat (9), one end of the second screw is arranged in the second rotating shaft (23) seat, the other end of the second screw is connected with the output end of the lifting motor (40), the second nut (30) is screwed on the second screw, the second nut (30) is fixed on the side wall of the support frame (31), and the hopper (16) is fixed on the support frame (31).

9. The automatic compensation filling device for isostatic pressing of energetic materials as claimed in claim 8, wherein the supporting frame (31) is provided with a through slot for fixing the hopper (16), the outer diameter of the hopper (16) is less than or equal to the inner diameter of the through slot, the sidewall of the hopper (16) is provided with a clamping table (33), the hopper (16) is arranged by penetrating through the through slot and clamped on the supporting frame (31) by the clamping table (33), and a weighing sensor (34) is installed between the clamping table (33) and the supporting frame (31).

10. The automatic compensation filling device for isostatic pressing of energetic materials as claimed in claim 9, wherein the bottom of the hopper (16) is conical, a top ram (39) cooperating with the locking rod (36) is installed in the top blanking port of the hopper (16), and a gate valve (32) is installed at the bottom of the hopper (16).

Images