Automatic bagging device suitable for granular propellant powder

Abstract

The invention discloses an automatic bagging device suitable for granular propellant powder in the technical field of propellant powder packaging, and the automatic bagging device comprises a frame body which is provided with a bag supply assembly, a filling and weighing assembly, a tying assembly and a conveying assembly, the bag supply assembly, the filling and weighing assembly, the tying assembly and the conveying assembly are all provided with sensor systems, and the sensor systems, the bag supply assembly, the filling and weighing assembly, the tying assembly and the conveying assembly are all electrically connected to the control system; a soft cloth bag supplying machine and a rope tying machine are adopted, in order to enable automatic bag supplying, filling weighing, rope tying and transferring equipment to be safely and reliably applied to the field of propellant powder, aiming at the flammable and explosive characteristics of the propellant powder, the safety of the automatic discharging and packaging process is guaranteed from the aspects of anti-static, anti-friction and anti-collision, the labor intensity and the labor cost are greatly reduced, and meanwhile the production efficiency is improved. And the propellant production safety is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of propellant packaging, and in particular to an automatic bagging device suitable for granular propellant. Background Art

[0002] During the production process of propellants, various processes involve the packaging of semi-finished propellants. Bulk semi-finished propellants need to be packed into soft cotton bags, tied with ropes, and then transferred to the next process or placed in a warehouse for temporary storage. This process involves many processes and a large amount of semi-finished propellant packaging. Therefore, manual operations are arduous, safety risks are high, and intrinsic safety is low; in addition, the operating environment of many semi-finished propellant packaging workshops is poor, with a large number of inhalable pollutants, and manual direct contact with propellants is highly dangerous, endangering the health of employees. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the technical problem to be solved by the present invention is: how to improve the automation level of propellant guarantee.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] An automatic bagging device suitable for granular propellant comprises a frame, the frame is provided with a bag supply component, a filling and weighing component, a tying component and a conveying component, the bag supply component, the filling and weighing component, the tying component and the conveying component are all provided with a sensor system, and also comprises a control system, the sensor system, the bag supply component, the filling and weighing component, the tying component and the conveying component are all electrically connected to the control system;

[0006] The bag supply assembly includes a placement table and a bag taker movably connected to the frame. When in operation, the bag taker moves the packaging bag from the placement table to the filling and weighing assembly station and simultaneously opens the opening of the packaging bag.

[0007] The filling weighing assembly includes a weighing platform for placing packaging bags, an automatic feeder is arranged above the weighing platform, the weight information of the packaging bags detected by the weighing platform is sent to the control system, and the control system controls the opening and closing of the automatic feeder;

[0008] The above-mentioned tying assembly comprises a tying clamping conveying member and a tying device connected to the frame.

[0009] Furthermore, the bag picker includes a first driving module and a second driving module, the driving end of the first driving module is connected to a pneumatic pin assembly, the second driving module is provided with a mouth-opening assembly, and the mouth-opening assembly is located above the weighing platform; when working, the first driving module drives the pneumatic pin assembly to insert into the mouth of the packaging bag on the top layer of the placement platform and clamps the packaging bag to move to the upper end of the weighing platform, and the second driving module drives the mouth-opening assembly to open the mouth of the packaging bag.

[0010] Furthermore, the pneumatic pin assembly includes an upper suction cup, a lower suction cup and a pneumatic control component for clamping the opening of the packaging bag. The pneumatic control component is used to control the suction and separation actions of the upper suction cup and the lower suction cup. During operation, the first drive module drives the lower suction cup to extend into the edge of the packaging bag opening, and the pneumatic control component drives the upper suction cup to move downward to clamp the bag opening. At this time, the first drive module drives the packaging bag to move to the upper end of the weighing table.

[0011] Furthermore, the support assembly includes a first clamp connected to the driving end of the second driving module, a pneumatic telescopic rod is provided at one end of the first clamp away from the frame, and a support rod is provided at one end of the pneumatic telescopic rod away from the first clamp.

[0012] Furthermore, the frame is provided with a third driving module, and a driving end of the third driving module is connected to the placement table.

[0013] Furthermore, the above-mentioned bundle opening clamping conveyor includes a fourth driving module connected to the frame, and the driving end of the above-mentioned fourth driving module is provided with a second clamping member, and the above-mentioned second clamping member is used to clamp the bag opening of the packaging bag into a bundle and lift the packaging to the above-mentioned tethering device station.

[0014] Furthermore, the above-mentioned rope tie includes a wire feeding structure and a plurality of manipulators, the above-mentioned manipulators are used to clamp the wire and wind it around the opening of the packaging bag, and also include a cutting piece for cutting the wire.

[0015] Furthermore, it also includes a plurality of anti-falling auxiliary structures, and the plurality of the anti-falling auxiliary structures correspond to the positions of the bag supply component, the filling and weighing component, and the tying component.

[0016] Furthermore, the device is made of one or more of anti-static and static-conductive materials.

[0017] The beneficial effects of the present invention are:

[0018] The present application provides an automatic discharging and packaging technology for semi-finished propellants. The technology adopts a soft cloth bag feeding machine and a tying machine. In order to enable the automatic bag feeding, filling and weighing, tying and transportation equipment to be safely and reliably applied in the field of propellants, the automatic discharging and packaging process is ensured to be safe from the aspects of "anti-static, anti-friction and anti-collision" in view of the flammable and explosive characteristics of propellants, which greatly saves labor intensity and manpower costs while ensuring the safety of propellant production. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 It is a top view schematic diagram of the present invention;

[0021] Figure 3 It is a schematic diagram of the connection relationship between the bag supply component, the filling and weighing component and the tying component of the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of the bag supply assembly of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the tying assembly of the present invention;

[0024] Marked in the figure are, 1-frame, 2-placing table, 3-packaging bag, 4-anti-falling auxiliary structure, 5-bag picker, 6-weighing table, 7-automatic feeder, 8-second clamping piece, 9-closing assembly, 10-conveying assembly, 51-lower suction cup, 52-upper suction cup, 53-first clamping piece, 54-pneumatic telescopic rod, 55-support rod, 91-wire feeding structure, 92-manipulator. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings.

[0026] according to Figure 1 As shown, the embodiment of the present application proposes an automatic bagging device suitable for granular propellant, including a frame 1, the frame 1 is provided with a bag supply component, a filling and weighing component, a tying component 9 and a conveying component 10, the bag supply component, the filling and weighing component, the tying component 9 and the conveying component 10 are all provided with a sensor system, and also includes a control system, the sensor system, the bag supply component, the filling and weighing component, the tying component 9 and the conveying component 10 are all electrically connected to the control system;

[0027] The bag supply assembly comprises a placing table 2 and a bag taker 5 movably connected to the frame 1. When in operation, the bag taker 5 moves the packaging bag 3 from the placing table 2 to the filling and weighing assembly station and simultaneously opens the opening of the packaging bag 3.

[0028] The filling weighing assembly includes a weighing platform 6 for placing the packaging bag 3, and an automatic feeder 7 is arranged above the weighing platform 6. The weight information of the packaging bag 3 detected by the weighing platform 6 is sent to the control system, and the control system controls the opening and closing of the automatic feeder 7;

[0029] The above-mentioned tying assembly 9 includes a tying clamping conveying member and a tying device connected to the frame.

[0030] First of all, it should be stated that the present embodiment adopts a soft cloth bag feeding machine and a tying machine. In order to make the automatic bag feeding, filling weighing, tying and transportation equipment safely and reliably used in the field of propellants, in view of the flammable and explosive characteristics of propellants, the safety of the automatic discharging and packaging process is guaranteed from the aspects of "anti-static, anti-friction and anti-collision", which greatly saves labor intensity and labor costs while ensuring the safety of propellant production.

[0031] The above-mentioned placement table 2 is used to store the packaging bag 3 of the packaged propellant. The packaging bag 3 is specifically a soft cotton bag, which is placed in a uniform direction and position. In actual use, the bag picker 5 clamps the bag mouth of the packaging bag 3 upwards, simultaneously fixes the packaging bag 3 and transfers the packaging bag 3 to the upper end of the weighing table 6. At this time, the mouth of the packaging bag 3 is opened upward, and the weighing and filling process can be carried out.

[0032] The bag taker 5 comprises a first driving module and a second driving module, the driving end of the first driving module is connected to a pneumatic pin assembly, the second driving module is provided with a mouth opening assembly, and the mouth opening assembly is located above the weighing platform 6; when working, the first driving module drives the pneumatic pin assembly to insert into the mouth of the packaging bag 3 on the top layer of the placing platform 2 and clamp the packaging bag 3 to move to the upper end of the weighing platform 6, and the second driving module drives the mouth opening assembly to open the mouth of the packaging bag 3. The pneumatic pin and mouth opening device are used to replace complex mechanisms such as the manipulator 92 to complete the bag supply process, which greatly reduces the cost and workshop space.

[0033] The pneumatic pin assembly includes an upper suction cup 52 and a lower suction cup 51 for clamping the opening of the packaging bag 3, and a pneumatic control component. The pneumatic control component is used to control the suction and separation of the upper suction cup 52 and the lower suction cup 51. When working, the first drive module drives the lower suction cup 51 to extend into the edge of the opening of the packaging bag 3, and the pneumatic control component drives the upper suction cup 52 to move down to clamp the bag opening. At this time, the first drive module drives the packaging bag 3 to move to the upper end of the weighing table 6. The upper suction cup 52 and the lower suction cup 51 automatically move to grab the edge of the top layer of the bag, wherein the lower suction cup 51 extends into the bag opening. At this time, the two suction cups are sucked together, and after grabbing the bag, they move to the opening assembly. The opening assembly automatically goes deep into the bag to open the pocket opening, and then the pocket posture is turned from the horizontal state to the vertical state through the second drive module, waiting for the material to be connected, so that the cotton pockets are automatically supplied bag by bag (with consistent posture).

[0034] The above-mentioned opening support assembly includes a first clamping member 53 connected to the driving end of the above-mentioned second driving module, and a pneumatic telescopic rod is provided at one end of the above-mentioned first clamping member 53 away from the above-mentioned frame 1, and a support rod 55 is provided at one end of the above-mentioned pneumatic telescopic rod away from the above-mentioned first clamping member 53. The first clamping member 53 clamps one end of the opening of the packaging bag 3, and then controls the extension of the pneumatic telescopic rod so that the support rod 55 opens the other end of the opening of the packaging bag 3, thereby achieving the effect of opening the bag opening.

[0035] The whole process is as follows: when the optical sensor set on the placement table 2 detects that there is a packaging bag 3 on the placement table 2, the lower suction cup 51 is driven by the first driving module to move and extend into the edge of the packaging bag 3, and the pneumatic control component drives the upper suction cup 52 to move down to clamp the bag mouth. At this time, the first driving module drives the packaging bag 3 to move to the upper end of the weighing table 6. The upper suction cup 52 and the lower suction cup 51 automatically move to grab the edge of the topmost bag, wherein the lower suction cup 51 extends into the bag mouth. At this time, the two suction cups are sucked together, grab the bag and then move to the position of the first clamping member 53. At this time, the optical sensor at the position of the first clamping member 53 detects that the packaging bag 3 has reached the accurate position and clamps one side edge of the packaging bag 3 under the control of the control system. At the same time, the second driving module drives the packaging bag 3 to move to a position vertically placed on the upper end of the weighing table 6 to complete the process of taking the bag mouth.

[0036] In addition, the frame 1 is provided with a third driving module, and the driving end of the third driving module is connected to the placement table 2. That is to say, when the position of the packaging bag 3 on the placement table 2 is continuously lowered, the control system controls the third driving module to drive the placement table 2 to rise through the detection of the sensor, thereby ensuring that the packaging bag 3 on the top layer is always in an accurate and certain position.

[0037] An automatic feeder 7 is arranged above the weighing platform 6. The weight information of the packaging bag 3 detected by the weighing platform 6 is sent to the control system. The control system controls the opening and closing of the automatic feeder 7. Specifically, the weighing platform 6 is provided with an automatic interlocking weighing device, and the explosion-proof scale is interlocked with the discharge valve. The automatic filling is performed until the weight meets the process requirements to ensure the accuracy of the filling. The automatic feeder 7 includes a hopper and a valve. The valve can be a pipe clamp valve, a ball top valve or an arc valve.

[0038] After the propellant filling is completed, the filled packaging bag 3 needs to be transported to the double position of the tether device through the tie-mouth clamping conveyor. The above-mentioned tie-mouth clamping conveyor includes a fourth driving module connected to the frame 1. The driving end of the above-mentioned fourth driving module is provided with a second clamping member 8. The above-mentioned second clamping member 8 is used to clamp the bag mouth of the packaging bag 3 into a bundle and lift the packaging to the above-mentioned tether device station. That is to say, when the filling process is completed and the quality detected by the weighing table 6 meets the preset value, the control system controls the fourth driving module to drive the second clamping member 8 to clamp the mouth of the packaging bag 3 in the horizontal direction, and drive the entire packaging bag 3 to the tether device station under the clamping action.

[0039] The above-mentioned second clamping member 8 includes two groups of V-shaped clamps arranged oppositely. Under the drive of the fourth driving module, the two V-shaped clamps can move toward or away from each other, and the inflection point of the V-shaped clamp is designed in an arc shape. When the two V-shaped clamps move toward each other in the same horizontal plane, the two inflection points are close to each other, and the mouth of the packaging bag 3 is squeezed into a columnar shape, which is convenient for subsequent tying operations.

[0040] The above-mentioned rope tie device includes a wire feeding structure 91 and a plurality of manipulators 92. The above-mentioned manipulators 92 are used to clamp the wire and wrap it around the opening 3 of the packaging bag, and also include a cutting piece for cutting the wire.

[0041] The wire feeding mechanism is specifically a motor controlling the rotation of the wire feeding wheel to drive the wire to be output outward, and multiple manipulators 92 clamp the wire to achieve winding and tightening of the wire at the position where the wire is clamped by two V-shaped clamps at the bag opening, and finally the wire is cut by the cutting piece to complete the tying process of a packaging unit.

[0042] The packaging bag 3 that has been tied is transported to the designated area under the action of the conveying component 10. The conveying component 10 is specifically a conveyor belt. When the packaging unit completes the action at the tying station, the packaging bag 3 is pushed onto the conveyor belt, and the conveyor belt drives the packaging unit to move to the designated position.

[0043] The above-mentioned sensor system includes multiple position sensors and optical sensors that can sense the position and status of the packaging bag 3 in real time at each workstation, and transmit the sensed position and status signals to the control system in real time. The control system converts the signals into electrical signals to control each drive module to realize orderly and precise operation of each workstation, thereby ensuring the stability of the entire device.

[0044] The entire device also includes multiple anti-falling auxiliary structures 4, and the multiple anti-falling auxiliary structures 4 correspond to the positions of the bag supply assembly, the filling and weighing assembly, and the tying assembly 9. The specific anti-falling auxiliary devices are mainly arranged at the weighing platform 6 position and the tie rope position, and specifically include arc-shaped vertical enclosures, and the inner diameter of the vertical enclosure is slightly larger than the outer diameter of the packaging bag 3 in the upright state, so that the bag can be controlled to prevent the bag from spilling and colliding.

[0045] All parts of this device are made of one or more anti-static and conductive materials to prevent sparks from static electricity accumulation. The explosion-proof level of all electrical equipment is not less than ExdⅡBT4, and the casing protection is not less than IP65. The surface of the motor installed on site is equipped with a temperature sensor to realize the over-temperature alarm and parking function, and is interlocked with the control system to ensure the safe operation of the entire device. In the event of motor temperature, cylinder movement not in place, photoelectric sensor recognition abnormalities, solenoid valve operation abnormalities, positioning failure, gas and power outages, etc., an alarm indicator light is installed on site, and the control software pops up an alarm prompt. The program automatically controls the discharging valve to close and the open bag with material to keep the mouth gripped to prevent material from spilling, ensuring that the entire system is still safe and controllable under abnormal circumstances.

[0046] In summary, the present invention aims at the current situation of manually packaging semi-finished granular propellant with cotton bags, and fully realizes automated production operations through automatic bag supply equipment, automatic interlocking filling and weighing equipment, automatic cotton rope tying equipment, and automatic transfer equipment. No human operation is required at the operation site, which belongs to the unmanned development direction. At the same time, the equipment in the patent can be enlarged and reduced according to actual needs, and the structure can be appropriately adjusted to meet the actual on-site needs.

Claims

1. An automatic bagging device suitable for granular propellant, characterized in that: The invention comprises a frame (1), wherein the frame (1) is provided with a bag supply component, a filling and weighing component, a tying component (9) and a conveying component (10), wherein the bag supply component, the filling and weighing component, the tying component (9) and the conveying component (10) are all provided with a sensor system, and further comprises a control system, wherein the sensor system, the bag supply component, the filling and weighing component, the tying component (9) and the conveying component (10) are all electrically connected to the control system; The bag supply assembly comprises a placement table (2) movably connected to the frame (1) and a bag taker (5). When in operation, the bag taker (5) moves the packaging bag (3) from the placement table (2) to the filling and weighing assembly station and simultaneously opens the opening of the packaging bag (3); The filling weighing assembly comprises a weighing platform (6) for placing the packaging bag (3), an automatic feeder (7) is arranged above the weighing platform (6), the weighing platform (6) detects the weight information of the packaging bag (3) and sends it to the control system, and the control system controls the opening and closing of the automatic feeder (7); The tying assembly (9) comprises a tying clamping conveying member and a tying device connected to the frame.

2. The automatic bagging device for granular propellant according to claim 1, characterized in that: The bag taking device (5) comprises a first driving module and a second driving module, wherein the driving end of the first driving module is connected to a pneumatic pin assembly, and the second driving module is provided with a mouth-opening assembly, wherein the mouth-opening assembly is located above the weighing platform (6); when in operation, the first driving module drives the pneumatic pin assembly to insert into the mouth of the packaging bag (3) on the uppermost layer of the placing platform (2) and clamps the packaging bag (3) to move to the upper end of the weighing platform (6), and the second driving module drives the mouth-opening assembly to open the mouth of the packaging bag (3).

3. The automatic bagging device for granular propellant according to claim 2, characterized in that: The pneumatic pin assembly comprises an upper suction cup (52) for clamping the mouth of the packaging bag (3), a lower suction cup (51) and a pneumatic control component, wherein the pneumatic control component is used to control the suction and separation actions of the upper suction cup (52) and the lower suction cup (51). When in operation, the first drive module drives the lower suction cup (51) to extend into the edge of the mouth of the packaging bag (3), and the pneumatic control component drives the upper suction cup (52) to move downward to clamp the bag mouth. At this time, the first drive module drives the packaging bag (3) to move to the upper end of the weighing platform (6).

4. The automatic bagging device for granular propellant according to claim 3, characterized in that: The support assembly comprises a first clamping member (53) connected to the driving end of the second driving module, a pneumatic telescopic rod is arranged at one end of the clamping member away from the frame (1), and a support rod (55) is arranged at one end of the pneumatic telescopic rod away from the clamping member.

5. The automatic bagging device for granular propellant according to claim 1, characterized in that: The frame (1) is provided with a third driving module, and the driving end of the third driving module is connected to the placement platform (2).

6. The automatic bagging device for granular propellant according to claim 1, characterized in that: The bundle-mouth clamping conveyor comprises a fourth driving module connected to the frame (1), and the driving end of the fourth driving module is provided with a second clamping member (8), and the second clamping member (8) is used to clamp the bag mouth of the packaging bag (3) into a bundle and lift the packaging to the tie device station.

7. The automatic bagging device for granular propellant according to claim 1, characterized in that: The rope tie device comprises a wire feeding structure (91) and a plurality of manipulators (92), wherein the manipulators (92) are used to clamp the wire and wind it around the mouth of the packaging bag (3), and also comprises a cutting piece for cutting the wire.

8. The automatic bagging device for granular propellant according to claim 1, characterized in that: It also comprises a plurality of anti-falling auxiliary structures (4), wherein the positions of the plurality of anti-falling auxiliary structures (4) correspond to the positions of the bag supply component, the filling and weighing component and the tying component (9).

9. The automatic bagging device for granular propellant according to claim 1, characterized in that: The device is made of one or more of anti-static and static-conductive materials.

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