A filling machine

Abstract

The present invention relates to a filling machine in the technical field of fire extinguisher filling devices, comprising a conveyor and a filling station, a handle placement station, a can transfer station and a handle twisting manual station arranged in sequence along the conveying direction of the conveyor; the conveyor allows the fire extinguisher tank to pass through the filling station, the handle placement station, the can transfer station and the handle twisting manual station in sequence; the filling station is provided with a bottle pushing mechanism, a rough filling weighing device, a fine filling weighing device, a vacuum negative pressure filling mechanism, a fine filling device and a dust removal device; the handle placement station adopts manual auxiliary operation; the can transfer station is provided with a can transfer mechanism, the handle twisting manual station is provided with a handle twisting mechanism and a clamping mechanism, and the truss of the conveyor is connected with a frame that can support the devices or mechanisms on the above-mentioned stations. The device has a compact structure, occupies a small space, can realize multi-station and assembly line operation, improves the degree of automation of the fire extinguisher filling production line, reduces the labor intensity, and improves work efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of fire extinguisher filling devices, and in particular, relates to a filling machine. Background Art

[0002] The filling operation of dry powder for fire extinguishers involves many processes. The traditional manual operation method has high labor intensity and low work efficiency. Although some processes use some mechanical devices to assist production, the existing fire extinguisher filling production line has a low level of automation, and the filling mechanism has a single function. It still requires a lot of manual intervention and has low work efficiency. Therefore, it is urgent to develop a new filling machine to improve the automation level of the fire extinguisher filling production line, reduce manual labor intensity and improve work efficiency. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a filling machine, including a conveyor and a filling station, a handle placement station, a can transfer station and a handle twisting manual station arranged in sequence along the conveying direction of the conveyor; the conveyor allows the fire extinguisher tank to pass through the filling station, the handle placement station, the can transfer station and the handle twisting manual station in sequence; the filling station is provided with a bottle pushing mechanism, a rough filling weighing device, a fine filling weighing device, a vacuum negative pressure filling mechanism, a fine filling device and a dust removal device; the bottle pushing mechanism first pushes the fire extinguisher to be filled to the rough filling weighing device for rough filling weighing and then pushes it to the fine filling device for fine filling weighing; the vacuum negative pressure filling mechanism is connected to the filling head on the rough filling weighing device through a first powder feeding pipe, and vacuumizes the fire extinguisher tank. The fine filling device delivers dry powder into the powder filling funnel of the fine filling weighing device through the second powder feeding pipe, and the dust removal device extracts the dust generated during the filling process of the rough filling weighing device and the fine filling weighing device; the handle placement station quickly inserts the fire extinguisher handle into the powder-filled fire extinguisher tank body through manual assisted operation; the tank rotating station is provided with a tank rotating mechanism, and the handle twisting manual station is provided with a handle twisting mechanism and a clamping mechanism. The tank rotating mechanism rotates the fire extinguisher tank body with the cooperation of the positioning device of the handle twisting mechanism, so that the direction of the fire extinguisher handle corresponds to the handle twisting mechanism. After the clamping mechanism clamps the fire extinguisher tank body, the handle twisting mechanism tightens the fire extinguisher handle; the truss of the conveyor is connected to a frame that can support the devices or mechanisms on the above-mentioned stations.

[0004] Preferably, the bottle pushing mechanism includes a left bottle pushing mechanism and a right bottle pushing mechanism symmetrically arranged on the frames on both sides of the conveyor, and the left bottle pushing mechanism and the right bottle pushing mechanism both include a bottle pushing servo motor, a screw rod, a slider and a guide seat, the bottle pushing servo motor is fixed on the guide seat, one end of the screw rod is drivingly connected to the bottle pushing servo motor, and the other end is connected to the guide seat through a bearing seat, the slider is threadedly connected to the screw rod, and a guide plate is provided on the slider, and push rods are connected to both sides of the end of the guide plate away from the slider, and guide wheels matching the push rods are provided on both sides of the guide seat, the middle part of the push rod passes through the guide wheel, and a V-shaped block matching the fire extinguisher tank body is connected to the end of the push rod away from the bottle pushing servo motor, and the left bottle pushing mechanism and the right bottle pushing mechanism cooperate to make the fire extinguisher tank body rotate on the rough filling weighing device, the fine filling weighing device and the conveyor respectively. This bottle pushing mechanism can realize multi-station bottle pushing operation, which is beneficial to improving the production efficiency of fire extinguishers.

[0005] Preferably, the rough filling weighing device comprises a first weighing sensor and a filling mechanism connected to the first weighing sensor, one end of the first weighing sensor is suspended on the frame at the upper part of the filling station and adopts a cantilever beam weighing sensor, the filling mechanism comprises a filling head and a filling bracket, the top of the filling bracket is connected to the first weighing sensor through a connecting seat, the filling bracket comprises two vertically and flushly arranged filling guide rods, a filling seat connected to the top of the two filling guide rods and a supporting seat connected to the bottom of the two filling guide rods, the filling head is connected to the filling seat, and the bottom of the supporting seat is A first lifting cylinder is connected, and a lifting hole is provided in the middle of the support seat for the piston rod of the first lifting cylinder to move up and down. A fixed plate is provided on the top of the piston rod of the first lifting cylinder, and a load-bearing plate is connected to the top of the fixed plate through an accordion telescopic cover. The height of the load-bearing plate can be quickly adjusted according to the specifications of the fire extinguisher through the first lifting cylinder to meet the filling of fire extinguishers of different specifications. The online rough filling weighing operation of the fire extinguisher is realized through the rough filling weighing device. In addition, multiple sets of rough filling weighing devices can also be set to perform online rough filling weighing operations on multiple fire extinguishers at the same time, thereby greatly improving the rough filling weighing efficiency of the fire extinguisher.

[0006] Preferably, the fine filling weighing device includes a second weighing sensor, a powder filling bracket, a second lifting cylinder and a powder filling support. The second weighing sensor adopts a cantilever beam weighing sensor, and the bottom of the second weighing sensor is connected to the frame on the side of the conveyor, and a fire extinguisher placement platform is provided on the top. The powder filling bracket is connected to one end of the fire extinguisher placement platform. The second lifting cylinder is slidably connected to the powder filling bracket through a cylinder connecting seat. The cylinder connecting seat is provided with a top screw for fastening the cylinder connecting seat to the powder filling bracket. The height of the second lifting cylinder can be adjusted by loosening or tightening the top screw. For filling operations of qualified fire extinguishers, the powder filling support is connected to the piston rod of the second lifting cylinder, and a powder filling funnel is connected above one end of the powder filling support away from the piston rod of the second lifting cylinder, and a powder filling sealing head is connected below, a powder filling tube matching the filling port of the fire extinguisher is provided at the center of the powder filling sealing head, the powder filling tube passes through the powder filling support and is connected to the powder filling funnel, thereby realizing online fine filling and weighing operations of the fire extinguisher. In addition, multiple sets of fine filling and weighing devices can also be arranged to perform online fine filling and weighing operations on multiple fire extinguishers, thereby greatly improving the fine filling and weighing efficiency of the fire extinguishers.

[0007] Preferably, the vacuum negative pressure filling mechanism comprises a vacuum filter box, a powder return box and a powder filling mother pipe, the powder return box is connected to the bottom of the vacuum filter box through a first pinch tube valve, the powder filling mother pipe is respectively provided with a material receiving pipe, a powder return pipe and a powder filling branch pipe, the material receiving pipe is connected to an external powder supply pipeline, the powder return pipe is connected to the bottom of the powder return box through a second pinch tube valve, the powder filling branch pipe is connected to a filling head on a rough filling weighing device through a first powder delivery pipe, the vacuum filter box is connected to the inner cavity of the fire extinguisher tank through a vacuum valve, and a vacuum pump pipeline valve and a vacuum filter box air release clapper mechanism are provided on the top of the vacuum filter box, and a vacuum pump is connected to the end of the vacuum pump pipeline valve away from the vacuum filter box. The vacuum filter box air venting applause mechanism includes a sealing flange, a cover plate, a pressure plate, a cylinder mounting plate and a third lifting cylinder. The sealing flange is correspondingly arranged on the air vent at the top of the vacuum filter box, the cylinder mounting plate is connected to the top of the sealing flange through a bracket, the third lifting cylinder is connected to the cylinder mounting plate, the cover plate is connected to the pressure plate through bolts, and the pressure plate is connected to the piston rod of the third lifting cylinder. The cover plate corresponds to the air vent at the top of the vacuum filter box. The vacuum negative pressure filling mechanism is used to ensure that the fire extinguisher can fill powder while drawing negative pressure, thereby improving the powder filling efficiency. At the same time, the dust carried during the negative pressure drawing is recycled in the vacuum filter box for reuse in powder filling, which saves resources and protects the environment.

[0008] Preferably, the fine filling device includes a fine filling vacuum box, a fine filling powder replenishing box and a screw conveyor, a powder inlet pipe, a first material level meter and a vacuum pipe joint are provided on the top of the fine filling vacuum box, a solenoid valve is provided on the vacuum pipe joint, a first clamping valve is provided on the powder inlet pipe, the fine filling powder replenishing box is connected to the bottom of the fine filling vacuum box through a second clamping valve, a second material level meter is provided on the top of the fine filling powder replenishing box, at least one discharge port is provided at the bottom, a screw conveyor is connected to the bottom of each discharge port, the discharge port of the screw conveyor is connected to the second powder feeding pipe, and the second powder feeding pipe is provided with a third clamping valve for supplying powder to the fine filling weighing device.

[0009] Preferably, the dust removal device comprises an exhaust fan, an air inlet of the exhaust fan is connected to an exhaust main pipe, an air outlet is provided with a filter bag mounting plate, a filter bag is sleeved on the filter bag mounting plate, a plurality of pipe joints are provided on the exhaust main pipe, a fine filling exhaust hose and a coarse filling exhaust hose are connected to the pipe joints, a fine filling exhaust hose is connected to a fine filling exhaust connecting pipe below, a fine filling exhaust connecting pipe is connected to a fine filling suction nozzle below, a coarse filling exhaust hose is connected to a coarse filling exhaust connecting pipe below, a coarse filling suction nozzle is connected to a coarse filling suction nozzle below, the fine filling suction nozzle and the coarse filling suction nozzle correspond to the dust-raising points of the fine filling weighing device and the coarse filling weighing device respectively, and the dust generated in the filling process is controlled by the dust removal device, so as to save resources and protect the environment.

[0010] Preferably, the handle twisting mechanism includes a fixed frame, a first rotating servo motor, a lifting mechanism, a screw adjustment mechanism and a handle clamp matching the fire extinguisher handle, the fixed frame includes a top plate and a lifting bracket arranged at both ends of the top plate, the bottom end of the lifting bracket is provided with a connecting seat, the connecting seat is connected to the frames on both sides of the conveyor, the screw adjustment mechanism is connected to the middle part of the fixed frame through an intermediate plate, and the screw adjustment mechanism includes a screw, a rocker, a first bevel gear connected to the rotating shaft of the rocker and a second bevel gear connected to the bottom end of the screw, the first bevel gear is meshed with the second bevel gear, the rotating shaft is rotatably connected to the intermediate plate through a rotating shaft seat, the lower end of the screw is rotatably connected to the intermediate plate, the top end is rotatably connected to the top plate, and the middle part of the screw is connected to a sliding seat by a thread; the lifting mechanism includes a fourth lifting cylinder, a lifting plate, an upper connecting plate, a lower connecting plate and a vertical plate, the vertical plate is connected to the upper connecting plate and The top end of the lifting plate is connected to the lifting plate by the spring, and the bottom end is connected to the lifting plate by the spring. The position of the fire extinguisher handle is sensed by a photoelectric sensor. When the fire extinguisher handle is not in place, the can rotating mechanism is linked to move the fire extinguisher handle in place. After the fire extinguisher handle is in place, the handle twisting mechanism is linked to move the handle to tighten the handle. The handle twisting mechanism can be provided in multiple sets, thereby greatly improving the production efficiency of fire extinguishers.

[0011] Preferably, the clamping mechanism comprises a fixed seat, a clamping cylinder, a clamping head mounting plate connected to the clamping cylinder piston rod, and a movable clamp connected to the clamping head mounting plate. The fixed seat is connected to a fixed clamp. The fixed seat and the clamping cylinder are fixed on both sides of the conveyor respectively. The clamping cylinder drives the movable clamp to cooperate with the fixed clamp to fix the tank body of the fire extinguisher. The movable clamp and the fixed clamp are both V-shaped clamps. It is used to complete the fixation of the fire extinguisher tank body before the handle twisting mechanism is actuated to ensure the close fit between the fire extinguisher handle and the fire extinguisher tank body. The clamping mechanism can be provided in multiple sets so as to cooperate with multiple sets of handle twisting mechanisms, thereby greatly improving the production efficiency of the fire extinguisher.

[0012] Preferably, the tank rotating mechanism includes a pushing mechanism and a rotating mechanism correspondingly arranged on the frames on both sides of the conveyor, the pushing mechanism includes a pushing cylinder and a V-shaped frame mounting plate connected to the piston rod of the pushing cylinder, the pushing cylinder is connected to a truss on one side of the conveyor through a cylinder seat, a V-shaped frame matching the outer diameter of the tank body of the fire extinguisher is provided at the top and bottom of the V-shaped frame mounting plate, rollers are provided at both ends of each V-shaped frame, and when the telescopic rod of the pushing cylinder is in the extended position, the rollers are in rolling contact with the outer wall of the tank body of the fire extinguisher, the rotating mechanism includes a rotating frame, a second rotating servo motor and a rotating roller connected to the output shaft of the second rotating servo motor, the second rotating servo motor is fixed on the rotating frame, the rotating frame is connected to a truss on one side of the conveyor away from the pushing mechanism, the rotating roller is in frictional contact with the outer wall of the tank body of the fire extinguisher, and is used to cooperate with the handle twisting mechanism to ensure the direction of the fire extinguisher handle, and at the same time ensure the position of the fire extinguisher tank body on the conveyor to prevent the fire extinguisher tank body from running off. The tank rotating mechanism can be provided in multiple sets so as to cooperate with multiple sets of handle twisting mechanisms to greatly improve the production efficiency of the fire extinguisher.

[0013] The present invention also includes other devices or components that enable the filling machine to be used normally, which are all conventional technical means in the art. In addition, the devices or components not limited in the present invention all adopt conventional technical means in the art.

[0014] The working principle of the present invention is that when in use, the fire extinguisher tank to be filled with powder is first placed on the rough filling weighing device, the bottle pushing mechanism first positions the fire extinguisher to be filled on the rough filling weighing device and performs rough filling weighing, and then pushes it to the fine filling device for fine filling weighing, the vacuum negative pressure filling mechanism supplies dry powder to the rough filling weighing device and the fine filling weighing device to fill the fire extinguisher with powder, and at the same time, the fire extinguisher tank is vacuumed to ensure the powder filling efficiency, and the dust removal device extracts the dust generated during the filling process of the rough filling weighing device and the fine filling weighing device; the handle placing station quickly inserts the fire extinguisher handle into the fire extinguisher tank that has been filled with powder through manual assisted operation; the tank rotating mechanism drives the fire extinguisher tank to rotate, so that the fire extinguisher handle cooperates with the handle twisting mechanism and is tightened under the drive of the handle twisting mechanism, and the filled and assembled fire extinguisher is output to the next process via a conveyor.

[0015] The beneficial effects of the present invention are that the device has a compact structure, occupies a small space, can realize multi-station and assembly line operation, improves the automation degree of the fire extinguisher filling production line, reduces manual labor intensity, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0018] Figure 2 yes Figure 1 Schematic diagram of some of the internal structures.

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the bottle pushing mechanism of the present invention.

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the rough filling weighing device of the present invention.

[0021] Figure 5 It is a three-dimensional structural schematic diagram of the precision filling weighing device of the present invention.

[0022] Figure 6 It is a schematic diagram of the combined structure of the bottle pushing mechanism, the rough filling weighing device, the fine filling weighing device and the conveyor of the present invention.

[0023] Figure 7 It is a three-dimensional structural schematic diagram of the vacuum negative pressure filling mechanism of the present invention.

[0024] Figure 8 yes Figure 7 An enlarged schematic diagram of the G structure in FIG.

[0025] Fig. 9 It is a three-dimensional structural schematic diagram of the precision filling device of the present invention.

[0026] Fig.10 It is a schematic diagram of the three-dimensional structure of the dust removal device of the present invention.

[0027] Fig.11 It is a three-dimensional structural schematic diagram of the handle twisting mechanism of the present invention.

[0028] Fig.12 It is a three-dimensional structural schematic diagram of the handle twisting mechanism of the present invention from another viewing angle.

[0029] Fig.13 It is a partial structural schematic diagram of the screw rod adjustment mechanism of the present invention.

[0030] Fig.14 It is a three-dimensional structural schematic diagram of the clamping mechanism of the present invention.

[0031] Fig.15 It is a three-dimensional structural schematic diagram of the tank rotating mechanism of the present invention. DETAILED DESCRIPTION

[0032] The present invention is described clearly below in conjunction with the drawings and specific embodiments in the embodiments of the present invention. The description herein is only used to explain the present invention, but is not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work, any modifications, equivalent substitutions, improvements, etc., should be included in the protection scope of the present invention.

[0033] Example

[0034] like Figures 1 to 15 As shown, the present invention provides a filling machine, comprising a conveyor 1 and a filling station 2, a handle placement station 3, a tank transfer station 4 and a handle twisting manual station 5 arranged in sequence along the conveying direction of the conveyor 1; the conveyor 1 allows the fire extinguisher tank to pass through the filling station 2, the handle placement station 3, the tank transfer station 4 and the handle twisting manual station 5 in sequence; the filling station 2 is provided with a bottle pushing mechanism 6, a rough filling weighing device 7, a fine filling weighing device 8, a vacuum negative pressure filling mechanism 9, a fine filling device 14 and a dust removal device 10; the bottle pushing mechanism 6 first pushes the fire extinguisher to be filled to the rough filling weighing device 7 for rough filling weighing and then pushes it to the fine filling device 8 for fine filling weighing, the vacuum negative pressure filling mechanism 9 is connected to the filling head 7-2 on the rough filling weighing device 7 through a first powder feeding pipe (not shown in the figure), and vacuumizes the fire extinguisher tank, the fine filling weighing device The loading device 14 delivers dry powder into the powder filling funnel 8-7 of the fine filling weighing device 8 through the second powder feeding pipe 14-1, and the dust removal device 10 extracts the dust generated during the filling process of the rough filling weighing device 7 and the fine filling weighing device 8; the handle placement station 3 quickly inserts the fire extinguisher handle into the powder-filled fire extinguisher tank body through manual assisted operation; the tank rotation station 4 is provided with a tank rotation mechanism 11, and the handle twisting manual station 5 is provided with a handle twisting mechanism 12 and a clamping mechanism 13. The tank rotation mechanism 11 rotates the fire extinguisher tank body with the cooperation of the positioning device of the handle twisting mechanism 12, so that the direction of the fire extinguisher handle corresponds to the handle twisting mechanism 12. After the clamping mechanism 13 clamps the fire extinguisher tank body, the handle twisting mechanism 12 tightens the fire extinguisher handle; the truss of the conveyor 1 is connected to a frame that can support the devices or mechanisms on the above-mentioned stations.

[0035] The bottle pushing mechanism 6 includes a left bottle pushing mechanism 6-1 and a right bottle pushing mechanism 6-2 symmetrically arranged on the frames on both sides of the conveyor 1. The left bottle pushing mechanism 6-1 and the right bottle pushing mechanism 6-2 both include a bottle pushing servo motor 6-3, a screw rod 6-4, a slider 6-5 and a guide seat 6-6. The bottle pushing servo motor 6-3 is fixed on the guide seat 6-6. One end of the screw rod 6-4 is connected to the bottle pushing servo motor 6-3 by transmission, and the other end is connected to the guide seat 6-6 through a bearing seat. The slider 6-5 is threadedly connected to the screw rod 6-4, and the slider 6-5 is provided with The guide plate 6-7, the two sides of the end of the guide plate 6-7 away from the slider 6-5 are respectively connected with a push rod 6-8, the two sides of the guide seat 6-6 are provided with a guide wheel 6-9 matching the push rod 6-8, the middle of the push rod 6-8 passes through the guide wheel 6-9, and the end of the push rod 6-8 away from the bottle pushing servo motor 6-3 is connected with a V-shaped block 6-10 matching the fire extinguisher tank body, the left bottle pushing mechanism 6-1 and the right bottle pushing mechanism 6-2 cooperate to make the fire extinguisher tank body rotate on the rough filling weighing device 7, the fine filling weighing device 8 and the conveyor 1. The bottle pushing mechanism 6 can realize multi-station bottle pushing operation, which is conducive to improving the production efficiency of fire extinguishers.

[0036] The rough filling weighing device 7 comprises a first weighing sensor 7-1 and a filling mechanism connected to the first weighing sensor 7-1. One end of the first weighing sensor 7-1 is suspended on the frame at the upper part of the filling station 2 and adopts a cantilever beam type weighing sensor. The filling mechanism comprises a filling head 7-2 and a filling bracket. The top of the filling bracket is connected to the first weighing sensor 7-1 through a connecting seat 7-3. The filling bracket comprises two vertically and flushly arranged filling guide rods 7-4, a filling seat 7-5 connected to the top of the two filling guide rods 7-4, and a supporting seat 7-6 connected to the bottom of the two filling guide rods 7-4. The filling head 7 -2 is connected to the filling seat 7-5, and a first lifting cylinder 7-7 is connected to the lower part of the support seat 7-6. A lifting hole is provided in the middle of the support seat 7-6 for the piston rod of the first lifting cylinder 7-7 to move up and down. A fixing plate 7-8 is provided on the top of the piston rod of the first lifting cylinder 7-7. A load-bearing plate 7-10 is connected to the top of the fixing plate 7-8 through an accordion telescopic cover 7-9, thereby realizing the online rough filling and weighing operation of the fire extinguisher, thereby improving the rough filling and weighing efficiency of the fire extinguisher. In this embodiment, two sets of rough filling and weighing devices 7 are provided, and the first lifting cylinder 7-7 is used to adjust the height of the load-bearing plate to adapt to the filling of fire extinguishers of different specifications.

[0037] The fine filling weighing device 8 includes a second weighing sensor 8-1, a powder filling bracket 8-2, a second lifting cylinder 8-3 and a powder filling support 8-4. The second weighing sensor 8-1 adopts a cantilever beam weighing sensor, and the bottom of the second weighing sensor 8-1 is connected to the frame on the side of the conveyor 1, and a fire extinguisher placement platform 8-5 is provided on the top. The powder filling bracket 8-2 is connected to one end of the fire extinguisher placement platform 8-5. The second lifting cylinder 8-3 is slidably connected to the powder filling bracket 8-2 through a cylinder connecting seat 8-6. The cylinder connecting seat 8-6 is provided with a top screw for fastening the cylinder connecting seat 8-6 to the powder filling bracket 8-2, and the top screw can be adjusted by loosening or tightening the top screw. The height of the second lifting cylinder 8-3 is suitable for filling operations of fire extinguishers of different specifications. The powder filling support 8-4 is connected to the piston rod of the second lifting cylinder 8-3, and the powder filling support 8-4 is connected to a powder filling funnel 8-7 above one end of the piston rod away from the second lifting cylinder 8-3, and is connected to a powder filling sealing head 8-8 below. The center of the powder filling sealing head 8-8 is provided with a powder filling pipe 8-9 matching the filling port of the fire extinguisher. The powder filling pipe 8-9 passes through the powder filling support 8-4 and is connected with the powder filling funnel 8-7, realizing the online fine filling and weighing operation of the fire extinguisher, thereby improving the fine filling and weighing efficiency of the fire extinguisher. In this embodiment, two sets of fine filling weighing devices 8 are provided.

[0038] The vacuum negative pressure filling mechanism 9 includes a vacuum filter box 9-1, a powder return box 9-2 and a powder filling mother pipe 9-3. The powder return box 9-2 is connected to the bottom of the vacuum filter box 9-1 through a first pinch valve 9-4. The powder filling mother pipe 9-3 is respectively provided with a material receiving pipe 9-5, a powder return pipe 9-6 and a powder filling branch pipe 9-15. The material receiving pipe 9-5 is connected to the external powder supply pipeline. The powder return pipe 9-6 is connected to the bottom of the powder return box 9-2 through a second pinch valve 9-7. The powder filling branch pipe 9-15 is connected to the filling head 7-2 on the rough filling weighing device 7 through a first powder delivery pipe. The vacuum filter box 9-1 is connected to the inner cavity of the fire extinguisher tank through a vacuum valve 9-8, and a vacuum pump pipeline valve 9-9 and a vacuum filter box air release clapper mechanism are provided on the top of the vacuum filter box 9-1. The end of the vacuum pump pipeline valve 9-9 away from the vacuum filter box 9-1 is connected to a vacuum pump (not shown in the figure). The vacuum filter box venting clapper mechanism includes a sealing flange 9-10, a cover plate 9-11, a pressure plate 9-12, a cylinder mounting plate 9-13 and a third lifting cylinder 9-14. The sealing flange 9-10 is correspondingly arranged on the venting port on the top of the vacuum filter box 9-1. The cylinder mounting plate 9-13 is connected to the sealing flange 9-10 through a bracket. The third lifting cylinder 9-14 is connected to the cylinder mounting plate 9-13. The cover plate 9-11 is connected to the pressure plate 9-12 by bolts. The pressure plate 9-12 is connected to the piston rod of the third lifting cylinder 9-14. The cover plate 9-11 corresponds to the venting port on the top of the vacuum filter box 1. The vacuum negative pressure filling mechanism ensures that the fire extinguisher is filled with powder while drawing negative pressure, thereby improving the powder filling efficiency. At the same time, the dust carried when drawing negative pressure is recycled in the vacuum filter box 9-1 for reuse in powder filling, which saves resources and protects the environment.

[0039] The fine filling device 14 includes a fine filling vacuum box 14-2, a fine filling powder replenishing box 14-3 and a screw conveyor 14-4. A powder inlet pipe 14-5, a first material level meter 14-6 and a vacuum pipe joint 14-7 are provided on the top of the fine filling vacuum box 14-2. A solenoid valve 14-8 is provided on the vacuum pipe joint 14-7. A first pinch valve 14-9 is provided on the powder inlet pipe 14-5. The fine filling powder replenishing box 14-3 is connected to the bottom of the fine filling vacuum box 14-2 through a second pinch valve 14-10. A second material level meter 14-11 is provided on the top of the fine filling powder replenishing box 14-3, and two discharge ports are provided at the bottom. A screw conveyor 14-4 is connected to the bottom of each discharge port. The discharge port of the screw conveyor 14-4 is connected to the second powder feeding pipe 14-1. The second powder feeding pipe 14-1 is provided with a third pinch valve 14-12 for supplying powder to the fine filling weighing device 8.

[0040] The dust removal device 10 comprises an exhaust fan 10-1, the air inlet of the exhaust fan 10-1 is connected to an exhaust main pipe 10-2, the air outlet is provided with a filter bag mounting plate 10-3, a filter bag (not shown in the figure) is sleeved on the filter bag mounting plate 10-3, a plurality of pipe joints are provided on the exhaust main pipe 10-2, a fine irrigation exhaust hose 10-4 and a coarse irrigation exhaust hose 10-5 are connected to the pipe joints, a fine irrigation exhaust connecting pipe 10-6 is connected to the lower part of the fine irrigation exhaust hose 10-4, and the fine irrigation exhaust hose 10-6 is connected to the lower part of the fine irrigation exhaust hose 10-6. A fine filling air suction nozzle 10-7 is connected to the bottom of the exhaust connecting pipe 10-6, a coarse filling air exhaust connecting pipe 10-8 is connected to the bottom of the coarse filling air exhaust hose 10-5, and a coarse filling air suction nozzle 10-9 is connected to the bottom of the coarse filling air exhaust connecting pipe 10-8. The fine filling air suction nozzle 10-7 and the coarse filling air suction nozzle 10-9 correspond to the dust points of the fine filling weighing device 8 and the coarse filling weighing device 7 respectively. The dust generated in the filling process is controlled by the dust removal device 10, so as to save resources and protect the environment.

[0041] The handle twisting mechanism 12 includes a fixed frame 12-1, a first rotary servo motor 12-2, a lifting mechanism 12-6, a screw adjustment mechanism 12-3 and a handle clamp 12-4 matching the fire extinguisher handle, the fixed frame 12-1 includes a top plate 12-11 and lifting brackets 12-12 arranged at both ends of the top plate 12-11, the bottom end of the lifting bracket 12-12 is provided with a connecting seat 12-13, the connecting seat 12-13 is connected to the frames on both sides of the conveyor 1, the screw adjustment mechanism 12-3 is connected to the middle part of the fixed frame 12-1 through the intermediate plate 12-5, and the screw adjustment mechanism 12-3 includes a screw 12-31, a rocker 12- 32. A first bevel gear 12-33 connected to the rotating shaft of the rocker 12-32 and a second bevel gear 12-34 connected to the bottom end of the screw rod 12-31, the first bevel gear 12-33 meshes with the second bevel gear 12-34, the rotating shaft is rotatably connected to the middle plate 12-5 through a rotating shaft seat, the lower end of the screw rod 12-31 is rotatably connected to the middle plate 12-5, the top end is rotatably connected to the top plate 12-11, and the middle part of the screw rod 12-31 is threadedly connected to a sliding seat 12-35; the lifting mechanism 12-6 includes a fourth lifting cylinder 12-61, a lifting plate 12-62, an upper connecting plate 12-63, and a lower connecting plate 12-64 And the vertical plate 12-65, the vertical plate 12-65 is connected between the upper connecting plate 12-63 and the lower connecting plate 12-64, both ends of the upper connecting plate 12-63 and the lower connecting plate 12-64 are slidably connected to the lifting bracket 12-12, the vertical plate 12-65 is provided with a slide rail, the lifting plate 12-62 is slidably connected to the slide rail through the slide groove on its back, the fourth lifting cylinder 12-61 is fixed on the upper connecting plate 12-63, the top of the lifting plate 12-62 is connected to the piston rod of the fourth lifting cylinder 12-61, the sliding seat 12-35 is fixed on the back of the vertical plate 12-65, and the first rotary servo motor 12-2 is driven by the motor The mounting plate 12-7 is connected to the front end of the lifting plate 12-62, and the output shaft of the first rotary servo motor 12-2 is connected to a connecting rod through a coupling, and a spring 12-8 is sleeved on the connecting rod. The top of the spring 12-8 is connected to the coupling, and the bottom is connected to the handle clamp 12-4. The top of the handle clamp 12-4 is provided with a connecting hole matching the connecting rod, and the handle clamp 12-4 is slidably connected to the connecting rod through the spring 12-8; the positioning device of the handle twisting mechanism 12 includes a photoelectric sensor 12-9 for sensing the position of the fire extinguisher handle, and the photoelectric sensor 12-9 is connected to the lower connecting plate 12-64 through a sensing bracket. The position of the fire extinguisher handle is sensed by the photoelectric sensor 12-9. When the fire extinguisher handle is not in place, the rotating tank mechanism 11 is linked to move the fire extinguisher handle in place. After the fire extinguisher handle is in place, the handle twisting mechanism 12 is linked to move the handle to tighten the handle.

[0042] The clamping mechanism 13 includes a fixed seat 13-1, a clamping cylinder 13-2, a clamping head mounting plate 13-3 connected to the piston rod of the clamping cylinder 13-2, and a movable clamp 13-4 connected to the clamping head mounting plate 13-3. The fixed seat 13-1 is connected to a fixed clamp 13-5. The fixed seat 13-1 and the clamping cylinder 13-2 are fixed on both sides of the conveyor 1. The clamping cylinder 13-2 drives the movable clamp 13-4 to cooperate with the fixed clamp 13-5 to fix the tank body of the fire extinguisher. The movable clamp 13-4 and the fixed clamp 13-5 are both V-shaped clamps. They are used to fix the fire extinguisher tank body before the handle mechanism 12 is actuated to ensure the close fit between the fire extinguisher handle and the fire extinguisher tank body.

[0043] The tank transfer mechanism 11 includes a pushing mechanism and a rotating mechanism correspondingly arranged on the frames on both sides of the conveyor 1. The pushing mechanism includes a pushing cylinder 11-1 and a V-shaped frame mounting plate 11-2 connected to the piston rod of the pushing cylinder 11-1. The pushing cylinder 11-1 is connected to a truss on one side of the conveyor 1 through a cylinder seat 11-3. A V-shaped frame 11-4 matching the outer diameter of the tank body of the fire extinguisher is provided at the top and bottom of the V-shaped frame mounting plate 11-2 respectively. Both ends of each V-shaped frame 11-4 are provided with rollers 11-5. When the telescopic rod of the pushing cylinder 11-1 is in the extended position, the rollers 11-5 are rotated. 1-5 is in rolling contact with the outer wall of the fire extinguisher tank body, and the rotating mechanism includes a rotating frame 11-6, a second rotating servo motor 11-7 and a rotating roller 11-8 connected to the output shaft of the second rotating servo motor 11-7, and the second rotating servo motor 11-7 is fixed on the rotating frame 11-6, and the rotating frame 11-6 is connected to the truss on the side of the conveyor 1 away from the pushing mechanism. The rotating roller 11-8 is in frictional contact with the outer wall of the fire extinguisher tank body, and is used to cooperate with the handle twisting mechanism 12 to ensure the direction of the fire extinguisher handle, and at the same time ensure the position of the fire extinguisher tank body on the conveyor 1 to prevent the fire extinguisher tank body from running off.

[0044] The working principle of the present invention is that when in use, the fire extinguisher tank to be filled with powder is first placed on the rough filling weighing device 7, the bottle pushing mechanism 6 first positions the fire extinguisher to be filled on the rough filling weighing device 7 and performs rough filling weighing, and then pushes it to the fine filling filling device 8 for fine filling weighing, the vacuum negative pressure filling mechanism 9 supplies dry powder to the rough filling weighing device 7 and the fine filling weighing device 8 to fill the fire extinguisher with powder, and at the same time, the fire extinguisher tank is vacuumed to ensure the powder filling efficiency, and the dust removal device 10 extracts the dust generated during the filling process of the rough filling weighing device 7 and the fine filling weighing device 8; the handle placement station 3 quickly inserts the fire extinguisher handle into the fire extinguisher tank that has been filled with powder through manual auxiliary operation; the tank rotating mechanism 11 drives the fire extinguisher tank to rotate, so that the fire extinguisher handle cooperates with the handle twisting mechanism 12 and is tightened under the drive of the handle twisting mechanism 12, and the filled and assembled fire extinguisher is output to the next process via the conveyor 1.

[0045] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A filling machine, comprising a conveyor, characterized in that: Filling stations, handle placement stations, can transfer stations and handle twisting stations are arranged in sequence along the conveying direction of the conveyor; the conveyor allows the fire extinguisher tank to pass through the filling station, handle placement station, can transfer station and handle twisting station in sequence; The filling station is provided with a bottle pushing mechanism, a rough filling weighing device, a fine filling weighing device, a vacuum negative pressure filling mechanism, a fine filling device and a dust removal device; the bottle pushing mechanism first pushes the fire extinguisher to be filled to the rough filling weighing device for rough filling weighing and then pushes it to the fine filling device for fine filling weighing; the vacuum negative pressure filling mechanism is connected to the filling head on the rough filling weighing device through a first powder feeding pipe, and vacuumizes the fire extinguisher tank; the fine filling device feeds dry powder into the powder filling funnel of the fine filling weighing device through a second powder feeding pipe; the dust removal device extracts dust generated during the filling process of the rough filling weighing device and the fine filling weighing device; The handle placement station uses manual assistance to quickly insert the fire extinguisher handle into the fire extinguisher tank that has been filled with powder; The tank rotating station is provided with a tank rotating mechanism, and the handle twisting manual station is provided with a handle twisting mechanism and a clamping mechanism. The tank rotating mechanism rotates the fire extinguisher tank body in cooperation with the positioning device of the handle twisting mechanism, so that the direction of the fire extinguisher handle corresponds to the handle twisting mechanism. After the clamping mechanism clamps the fire extinguisher tank body, the handle twisting mechanism tightens the fire extinguisher handle. The truss of the conveyor is connected to a frame that can support the devices or mechanisms on the above-mentioned stations; The bottle pushing mechanism comprises a left bottle pushing mechanism and a right bottle pushing mechanism symmetrically arranged on the frames on both sides of the conveyor, the left bottle pushing mechanism and the right bottle pushing mechanism both comprise a bottle pushing servo motor, a screw rod, a slider and a guide seat, the bottle pushing servo motor is fixed on the guide seat, one end of the screw rod is drivingly connected to the bottle pushing servo motor, and the other end is connected to the guide seat through a bearing seat, the slider is threadedly connected to the screw rod, and a guide plate is provided on the slider, and push rods are respectively connected to the two sides of the end of the guide plate away from the slider, and guide wheels matching the push rods are provided on both sides of the guide seat, the middle part of the push rod passes through the guide wheel, and a V-shaped block matching the fire extinguisher tank body is connected to the end of the push rod away from the bottle pushing servo motor, and the left bottle pushing mechanism and the right bottle pushing mechanism cooperate to make the fire extinguisher tank body rotate on the rough filling weighing device, the fine filling weighing device and the conveyor respectively; The handle twisting mechanism includes a fixed frame, a first rotating servo motor, a lifting mechanism, a screw rod adjustment mechanism and a handle clamp matching the fire extinguisher handle, the fixed frame includes a top plate and a lifting bracket arranged at both ends of the top plate, the bottom end of the lifting bracket is provided with a connecting seat, the connecting seat is connected to the frames on both sides of the conveyor, the screw rod adjustment mechanism is connected to the middle part of the fixed frame through an intermediate plate, and the screw rod adjustment mechanism includes a screw rod, a rocking wheel, a first bevel gear connected to the rotating shaft of the rocking wheel and a second bevel gear connected to the bottom end of the screw rod, the first bevel gear is meshed with the second bevel gear, the rotating shaft is rotatably connected to the intermediate plate through a rotating shaft seat, the lower end of the screw rod is rotatably connected to the intermediate plate, the top end is rotatably connected to the top plate, and the middle part of the screw rod is connected to a sliding seat by a thread; the lifting mechanism includes a fourth lifting cylinder, a lifting plate, an upper connecting plate, a lower connecting plate and a vertical plate, the vertical plate is connected to the upper connecting plate and the lower connecting plate The lifting plate is connected with the lifting plate by the sliding groove on the back of the lifting plate, and the fourth lifting cylinder is fixed on the upper connecting plate, and the top of the lifting plate is connected to the piston rod of the fourth lifting cylinder, and the sliding seat is fixed on the back of the vertical plate. The first rotary servo motor is connected to the front end of the lifting plate through the motor mounting plate, and the output shaft of the first rotary servo motor is connected to a connecting rod through a coupling, and a spring is sleeved on the connecting rod, and the top of the spring is connected to the coupling, and the bottom end is connected to the handle clamp, and the top of the handle clamp is provided with a connecting hole matching the connecting rod, and the handle clamp is slidably connected to the connecting rod through a spring; the positioning device of the handle twisting mechanism includes a photoelectric sensor for sensing the position of the fire extinguisher handle, and the photoelectric sensor is connected to the lower connecting plate through a sensing bracket.

2. The filling machine according to claim 1, characterized in that: The rough filling weighing device includes a first weighing sensor and a filling mechanism connected to the first weighing sensor. One end of the first weighing sensor is suspended on the frame at the upper part of the filling station and adopts a cantilever beam weighing sensor. The filling mechanism includes a filling head and a filling bracket. The top of the filling bracket is connected to the first weighing sensor through a connecting seat. The filling bracket includes two vertically and flush filling guide rods, a filling seat connected to the tops of the two filling guide rods, and a support seat connected to the bottoms of the two filling guide rods. The filling head is connected to the filling seat. A first lifting cylinder is connected below the support seat. A lifting hole is provided in the middle of the support seat for the piston rod of the first lifting cylinder to move up and down. A fixing plate is provided on the top of the piston rod of the first lifting cylinder. The top of the fixing plate is connected to a load-bearing plate through an accordion telescopic cover.

3. The filling machine according to claim 1, characterized in that: The fine filling weighing device includes a second weighing sensor, a powder filling bracket, a second lifting cylinder and a powder filling support. The second weighing sensor adopts a cantilever beam weighing sensor, and the bottom of the second weighing sensor is connected to the frame on the side of the conveyor, and a fire extinguisher placement platform is provided on the top. The powder filling bracket is connected to one end of the fire extinguisher placement platform. The second lifting cylinder is slidably connected to the powder filling bracket through a cylinder connecting seat. The cylinder connecting seat is provided with a top screw for fastening the cylinder connecting seat to the powder filling bracket. The powder filling support is connected to the piston rod of the second lifting cylinder, and a powder filling funnel is connected to the upper part of the end of the powder filling support away from the piston rod of the second lifting cylinder, and a powder filling sealing head is connected to the lower part. A powder filling pipe matching the filling port of the fire extinguisher is provided at the center of the powder filling sealing head, and the powder filling pipe passes through the powder filling support and is connected to the powder filling funnel.

4. The filling machine according to claim 1, characterized in that: The vacuum negative pressure filling mechanism comprises a vacuum filter box, a powder return box and a powder filling main pipe, the powder return box is connected to the bottom of the vacuum filter box through a first pinch tube valve, the powder filling main pipe is respectively provided with a material receiving pipe, a powder return pipe and a powder filling branch pipe, the material receiving pipe is connected to an external powder supply pipeline, the powder return pipe is connected to the bottom of the powder return box through a second pinch tube valve, the powder filling branch pipe is connected to a filling head on a rough filling weighing device through a first powder delivery pipe, the vacuum filter box is connected to the inner cavity of the fire extinguisher tank through a vacuum valve, and a vacuum pump pipeline valve and a vacuum pump are provided on the top of the vacuum filter box. The filter box has an air venting clapper mechanism, wherein the vacuum pump pipeline valve is connected to a vacuum pump at one end away from the vacuum filter box, and the vacuum filter box has an air venting clapper mechanism comprising a sealing flange, a cover plate, a pressure plate, a cylinder mounting plate and a third lifting cylinder, wherein the sealing flange is correspondingly arranged on the air vent at the top of the vacuum filter box, the cylinder mounting plate is connected to the sealing flange through a bracket, the third lifting cylinder is connected to the cylinder mounting plate, the cover plate is connected to the pressure plate through bolts, the pressure plate is connected to the piston rod of the third lifting cylinder, and the cover plate corresponds to the air vent at the top of the vacuum filter box.

5. The filling machine according to claim 1, characterized in that: The fine filling device includes a fine filling vacuum box, a fine filling powder replenishing box and a screw conveyor. A powder feed pipe, a first material level meter and a vacuum pipe joint are arranged on the top of the fine filling vacuum box. A solenoid valve is arranged on the vacuum pipe joint. A first pinch tube valve is arranged on the powder feed pipe. The fine filling powder replenishing box is connected to the bottom of the fine filling vacuum box through a second pinch tube valve. A second material level meter is arranged on the top of the fine filling powder replenishing box, and at least one discharge port is arranged at the bottom. A screw conveyor is connected to the bottom of each discharge port. The discharge port of the screw conveyor is connected to the second powder delivery pipe, and a third pinch tube valve is arranged on the second powder delivery pipe.

6. The filling machine according to claim 1, characterized in that: The dust removal device includes an exhaust fan, an air inlet of the exhaust fan is connected to an exhaust main pipe, an air outlet is provided with a filter bag mounting plate, a filter bag is sleeved on the filter bag mounting plate, a plurality of pipe joints are provided on the exhaust main pipe, a fine irrigation exhaust hose and a coarse irrigation exhaust hose are connected to the pipe joints, a fine irrigation exhaust connecting pipe is connected below the fine irrigation exhaust hose, a fine irrigation suction nozzle is connected below the fine irrigation exhaust connecting pipe, a coarse irrigation exhaust connecting pipe is connected below the coarse irrigation exhaust hose, a coarse irrigation suction nozzle is connected below the coarse irrigation exhaust connecting pipe, the fine irrigation suction nozzle and the coarse irrigation suction nozzle correspond to the dust raising points of the fine irrigation weighing device and the coarse irrigation weighing device respectively.

7. The filling machine according to claim 1, characterized in that: The clamping mechanism includes a fixed seat, a clamping cylinder, a clamping head mounting plate connected to the clamping cylinder piston rod, and a movable clamp connected to the clamping head mounting plate. The fixed seat is connected to a fixed clamp. The fixed seat and the clamping cylinder are correspondingly fixed on both sides of the conveyor. The clamping cylinder drives the movable clamp to cooperate with the fixed clamp to fix the tank body of the fire extinguisher. The movable clamp and the fixed clamp are both V-shaped clamps.

8. The filling machine according to claim 1, characterized in that: The tank rotating mechanism includes a pushing mechanism and a rotating mechanism correspondingly arranged on the frames on both sides of the conveyor, the pushing mechanism includes a pushing cylinder and a V-shaped frame mounting plate connected to the piston rod of the pushing cylinder, the pushing cylinder is connected to a truss on one side of the conveyor through a cylinder seat, and a V-shaped frame matching the outer diameter of the tank body of the fire extinguisher is provided at the top and bottom of the V-shaped frame mounting plate, respectively, and rollers are provided at both ends of each V-shaped frame, and when the telescopic rod of the pushing cylinder is in the extended position, the rollers are in rolling contact with the outer wall of the tank body of the fire extinguisher, the rotating mechanism includes a rotating frame, a second rotating servo motor and a rotating roller connected to the output shaft of the second rotating servo motor, the second rotating servo motor is fixed on the rotating frame, the rotating frame is connected to a truss on one side of the conveyor away from the pushing mechanism, and the rotating roller is in frictional contact with the outer wall of the tank body of the fire extinguisher.

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