Automatic filling system for production line of foam extinguishing agent

Abstract

The invention provides a foam extinguishing agent production line automatic filling system, and relates to the technical field of artificial intelligence systems, the foam extinguishing agent production line automatic filling system comprises a conveyor, a fire extinguisher filling tank, a low-frequency electronic tag, a weight detection type tag data writing assembly, a foam extinguishing agent material box, a quantitative filling mechanism, a tag data reading mechanism and a controller; according to the device, fire extinguisher filling tanks with different volume specifications are detected and distinguished through the weight detection type tag data writing assembly, different data information is written into low-frequency electronic tags on the fire extinguisher filling tanks, and the information of the low-frequency electronic tags on the passing fire extinguisher filling tanks is read through the tag data reading mechanism; different electric signals are sent to the controller according to different read information, the controller controls the quantitative filling mechanism to fill different quantities of foam extinguishing agents into the fire extinguisher filling tanks of the corresponding specifications according to different received electric signals, mixed filling is conducted on the fire extinguisher filling tanks of the different specifications on one production line, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of artificial intelligence systems, and in particular to an automatic filling system for a production line of a foam fire extinguishing agent. Background Art

[0002] Foam fire extinguishing agent is a common fire extinguishing agent. Foam fire extinguishing agent is a fire extinguishing agent that produces foam by mixing with water and using mechanical or chemical reactions. The current filling equipment for foam fire extinguishing agent production, when filling, because the capacity of different specifications of fire extinguisher filling tanks may be different, usually fill different specifications of fire extinguisher filling tanks separately, or set up two filling production lines. Different specifications of fire extinguisher filling tanks cannot be mixed on one production line, which affects the overall production efficiency of the production line. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic filling system for a production line of foam fire extinguishing agent, which has the advantage of mixed filling of fire extinguisher filling tanks of different specifications on one production line, and solves the technical problem that the current filling equipment for foam fire extinguishing agent production usually fills fire extinguisher filling tanks of different specifications separately, or sets up two filling production lines, which affects the overall production efficiency of the production line.

[0004] The present invention provides an automatic filling system for a production line of a foam fire extinguishing agent, comprising:

[0005] a conveyor on which fire extinguisher filling tanks are placed horizontally, and the tanks have at least two volume specifications;

[0006] A low-frequency electronic tag is adsorbed and fixed on the front wall of the fire extinguisher filling tank;

[0007] A weight detection type tag data writing component is arranged at the feeding end of the conveyor; and the weight detection type tag data writing component is wirelessly connected with a low-frequency electronic tag within 10 cm;

[0008] The foam fire extinguishing agent material box has a quantitative filling mechanism fixedly connected to its upper end, and the upper end of the quantitative filling mechanism extends to the middle of the upper end of the conveyor;

[0009] The label data reading mechanism is mounted on the outer wall of the conveyor and is located at the upper end of the quantitative filling mechanism and is biased towards the feeding end of the conveyor;

[0010] The tag data reading mechanism is wirelessly connected to a low-frequency electronic tag within 10 cm;

[0011] The controller is electrically connected to the label data reading mechanism, the conveyor and the quantitative filling mechanism respectively.

[0012] As a further optimization scheme, in order to write data information corresponding to the type of fire extinguisher filling tanks in the corresponding low-frequency electronic tags according to the different weights of the different specifications, the weight detection type tag data writing component includes:

[0013] A weight sensor is fixedly mounted inside the feeding end of the conveyor, and the top surface of the weight sensor is in contact with the top surface of the inner wall of the conveyor belt;

[0014] A tag data writing mechanism is fixedly mounted on the outer wall of the feeding end of the conveyor, and the tag data writing mechanism is wirelessly connected with a low-frequency electronic tag within 10 cm;

[0015] A server, which is electrically connected to the weight sensor and the tag data writing mechanism respectively;

[0016] The tag data writing mechanism and the tag data reading mechanism have the same structure.

[0017] As a further optimization scheme, in order to perform quantitative filling according to different types of fire extinguisher filling tanks, the quantitative filling mechanism includes:

[0018] A metering pump, which is fixedly mounted on the top surface of the foam fire extinguishing agent tank;

[0019] The metering pump is electrically connected to the controller;

[0020] The metering pump input end is fixedly connected to the feed pipe extending to the lower end of the inner cavity of the foam fire extinguishing agent material box, and the metering pump output end is fixedly connected to the elbow extending to the middle of the upper end of the conveyor;

[0021] The upper side port of the curved pipe is bent downward and fixedly connected with a lifting filling head.

[0022] As a further optimization scheme, in order to control the height of the lifting filling head so that its lower end extends into the filling tanks of fire extinguishers of different specifications and ensure that the lower outer ring fits the upper end of the fire extinguisher filling tank, the lifting filling head includes:

[0023] The upper end of the discharge pipe is fixedly connected to the upper port of the bent pipe, and the lower end of the discharge pipe is fixedly connected to a bellows;

[0024] The lower end of the corrugated pipe is fixedly connected with a tapered pipe, and the tip of the tapered pipe faces downward;

[0025] The lower end of the outer wall of the discharge pipe and the upper end of the outer wall of the tapered pipe are both fixedly sleeved with outer rings, and cylinders are longitudinally fixedly connected to the left and right sides of the position between the upper and lower outer rings;

[0026] The cylinders on both sides work synchronously.

[0027] As a further optimization scheme, in order to descend and fit to the upper end of the fire extinguisher filling tank to play a shielding role and prevent the foam fire extinguishing agent from overflowing, an annular groove is coaxially opened on the bottom surface of the lower outer ring, and a rubber layer is glued and fixed in the annular groove.

[0028] As a further optimization solution, in order to facilitate writing different data to the low-frequency electronic tags on the fire extinguisher filling tanks according to different types of the filling tanks, the tag data writing mechanism includes:

[0029] A strip plate is longitudinally fixedly mounted on the outer wall of the feed end of the conveyor;

[0030] A first electric push rod is vertically fixedly mounted on the upper end of the outer side of the strip plate, and the telescopic end of the first electric push rod passes through the upper end of the strip plate;

[0031] The telescopic end of the first electric push rod is fixedly connected to an electronic tag reader;

[0032] A spring-shaped wire is electrically connected between the electronic tag reader and the server.

[0033] As a further optimization scheme, in order to facilitate the use of the device, the bottom edge of the conveyor is evenly fixed with support legs, and the middle of the upper edge of the conveyor is fixedly installed with a filling tank centering guide mechanism on the side of the feeding end;

[0034] The upper edge of the conveyor is located below the upper end of the quantitative filling mechanism and is longitudinally fixed with a filling tank clamping and fixing mechanism;

[0035] The conveyor end is equipped with a belt pre-tightening structure;

[0036] The upper end of the foam fire extinguishing agent material box is fixedly equipped with an L-shaped cavity bracket;

[0037] The upper half of the quantitative filling mechanism extends into the L-shaped cavity bracket, and the upper end of the quantitative filling mechanism extends out of the front side of the bottom of the transverse part of the L-shaped cavity bracket.

[0038] As a further optimization scheme, in order to centrally guide the fire extinguisher filling tank to be filled, the filling tank centrally guiding mechanism includes:

[0039] There are two rotating shafts distributed in front and back, and the rotating shafts on both sides are longitudinally rotatably connected to the middle of the front and rear sides of the upper edge of the conveyor, biased towards the feeding end;

[0040] A limit block is fixedly mounted on the upper end of the rotating shaft;

[0041] The outer wall of the rotating shaft is sleeved with one end of a guide plate, and the other end of the guide plate extends to the middle of the upper end of the conveyor;

[0042] A torsion spring is sleeved on the upper end of the outer wall of the rotating shaft;

[0043] One end of the torsion spring is fixedly connected to the limit block, and the other end of the torsion spring is fixedly connected to the upper end of the guide plate.

[0044] As a further optimization scheme, in order to fix the fire extinguisher filling tank to be filled, the filling tank clamping and fixing mechanism includes:

[0045] There are two vertical plates arranged in parallel in front and back, and the lower ends of the vertical plates are fixedly assembled on the same side of the upper edge of the middle part of the conveyor;

[0046] A second electric push rod is vertically fixedly mounted in the middle of the outer wall of the vertical plate, and the telescopic end of the second electric push rod passes through the vertical plate;

[0047] The telescopic end of the second electric push rod is fixedly connected with a clamping plate, and a rubber pad is adhered and fixed to the inner wall of the clamping plate.

[0048] As a further optimization solution, in order to locate the position between the foam fire extinguishing agent material box and the conveyor, a groove is provided on the front side edge of the top surface of the foam fire extinguishing agent material box;

[0049] A clamping block is fixedly mounted on the upper end of the rear wall of the conveyor corresponding to the groove, and the clamping block is inserted into the groove.

[0050] The present invention provides an automatic filling system for a production line of a foam fire extinguishing agent through improvement, which has the following improvements and advantages compared with the prior art:

[0051] The device detects the weight of the fire extinguisher filling tanks input at the feeding end of the conveyor through a weight detection label data writing component, detects and distinguishes the fire extinguisher filling tanks with different volume specifications, writes different data information into the low-frequency electronic tags of the fire extinguisher filling tanks with different volume specifications, and the fire extinguisher filling tanks and the low-frequency electronic tags thereon continue to be transported along the conveyor. The label data reading mechanism reads the low-frequency electronic tag information on the passing fire extinguisher filling tanks, and sends different electrical signals to the controller according to the different read information. The controller controls the quantitative filling mechanism to fill different amounts of foam fire extinguishing agent into the fire extinguisher filling tanks of corresponding specifications according to the different received electrical signals. The conveyor is controlled by the controller to suspend conveying for a period of time for filling, and fire extinguisher filling tanks of different specifications are mixed and filled on a production line to improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0053] Figure 1 It is a schematic diagram of the structure of the present invention;

[0054] Figure 2 It is a schematic diagram of the structure of the quantitative filling mechanism of the present invention;

[0055] Figure 3 This is a schematic diagram of the rubber layer assembly structure of the present invention;

[0056] Figure 4 This is a schematic diagram of the structure of the label data writing mechanism of the present invention;

[0057] Figure 5 For the present invention Figure 1 The enlarged structural diagram at A in the middle;

[0058] Figure 6 It is a structural schematic diagram of the clamping and fixing mechanism of the filling tank of the present invention;

[0059] Figure 7 It is a schematic diagram of the positioning and placement structure of the foam fire extinguishing agent material box and the conveyor of the present invention;

[0060] Figure 8 It is a schematic diagram of the structure of the adhesive tape pre-tightening member of the present invention;

[0061] Fig. 9 It is a schematic diagram of the structure of the low-frequency electronic tag of the present invention;

[0062] Fig.10 It is a schematic diagram of the L-shaped cavity bracket structure of the present invention.

[0063] Description of reference numerals:

[0064] 1- conveyor, 2- weight sensor, 3- controller, 4- fire extinguisher filling tank, 5- tag data writing mechanism, 51- strip plate, 52- first electric push rod, 53- electronic tag reader, 54- spring-shaped wire, 6- server, 7- low frequency electronic tag, 71- tag body, 72- suction cup, 8- foam fire extinguishing agent material box, 9- quantitative filling mechanism, 91- metering pump, 92- feed pipe, 93- elbow, 94- lifting filling head, 941- discharge pipe, 942- bellows, 943- conical tube, 944- outer ring, 9441- rubber layer, 9442- annular groove, 945- cylinder, 10- filling tank center guide Toward mechanism, 101-rotating shaft, 102-limiting block, 103-guide plate, 104-torsion spring, 11-filling tank clamping and fixing mechanism, 111-vertical plate, 112-second electric push rod, 113-clamping plate, 114-rubber pad, 12-tape pre-tightening structure, 121-strip through hole, 122-tape pre-tightening member, 1221-telescopic rod, 1222-connecting seat, 1223-round rod, 1224-round roller, 1225-spring, 13-supporting leg, 14-L-shaped cavity bracket, 141-L-shaped cavity shell, 142-reserved through hole, 143-pipe through hole, 15-groove, 16-block, 17-label data reading mechanism. DETAILED DESCRIPTION

[0065] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0066] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0067] In the description of the present invention, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0068] See also Figure 1-10 The present invention provides a technical solution: an automatic filling system for a production line of a foam fire extinguishing agent, comprising:

[0069] The conveyor 1 has fire extinguisher filling tanks 4 placed horizontally thereon. The gaps between the fire extinguisher filling tanks 4 are fixed. With the intermittent operation of the conveyor 1, each fire extinguisher filling tank 4 can stop below the upper end of the quantitative filling mechanism 9 for a period of time to wait for filling. The fire extinguisher filling tanks 4 have at least two volume specifications, and the weights of the fire extinguisher filling tanks 4 with different volume specifications are different.

[0070] The conveyor 1 runs slowly and steadily, providing enough time for the reading and writing of the low-frequency electronic tag 7 during movement;

[0071] A low-frequency electronic tag 7 is adsorbed and fixed on the front wall of the fire extinguisher filling tank 4. The low-frequency electronic tag 7 is a direct application of the existing technology. The maximum wireless reading and writing distance is 10 cm. It is used to record the relevant information of the corresponding specifications of the fire extinguisher filling tank 4;

[0072] A weight detection type tag data writing component is arranged at the feeding end of the conveyor 1; and the weight detection type tag data writing component is wirelessly connected with the low-frequency electronic tag 7 within 10 cm, and the corresponding electronic information is written into the low-frequency electronic tag 7 on the fire extinguisher filling tanks 4 of different specifications passing by through the weight detection type tag data writing component;

[0073] The foam fire extinguishing agent material box 8 is fixedly connected to a quantitative filling mechanism 9 at its upper end, and the upper end of the quantitative filling mechanism 9 extends to the middle of the upper end of the conveyor 1. The quantitative filling mechanism 9 draws the foam fire extinguishing agent in the foam fire extinguishing agent material box 8 and discharges it from the upper end, and quantitatively fills the fire extinguisher filling tank 4 that stays below the upper end of the quantitative filling mechanism 9. The foam fire extinguishing agent material box 8 is replenished with foam fire extinguishing agent by opening the upper cover;

[0074] The tag data reading mechanism 17 is mounted on the outer wall of the conveyor 1 and is located at the upper end of the quantitative filling mechanism 9, which is biased towards the feeding end of the conveyor 1. The tag data reading mechanism 17 is used to read the electronic information written in the low-frequency electronic tag 7 on the passing fire extinguisher filling tank 4, and sends different electrical signals to the controller 3 according to different read and recognized electronic information. The fire extinguisher filling tank 4 passing through the tag data reading mechanism 17 is conveyed to the lower part of the upper end of the quantitative filling mechanism 9 to wait for filling;

[0075] The tag data reading mechanism 17 is wirelessly connected with the low-frequency electronic tag 7 within 10 cm;

[0076] The controller 3 is electrically connected to the label data reading mechanism 17, the conveyor 1 and the quantitative filling mechanism 9 respectively, and the circuit is powered by an external power supply. The controller 3 controls the quantitative filling mechanism 9 to quantitatively output different amounts of foam fire extinguishing agent according to the different electrical signals sent by the label data reading mechanism 17. At the same time, the controller 3 controls the intermittent working time of the conveyor 1 to meet the filling requirements and realize the requirements of filling different amounts of foam fire extinguishing agent into the filling tanks 4 of fire extinguishers of different specifications.

[0077] In some embodiments, in order to perform quantitative filling according to different types of fire extinguisher filling tanks 4, the weight detection type label data writing component includes:

[0078] The weight sensor 2 is fixedly mounted inside the feeding end of the conveyor 1, and the top surface of the weight sensor 2 is in contact with the top surface of the inner wall of the belt of the conveyor 1;

[0079] The tag data writing mechanism 5 is fixedly mounted on the outer wall of the feeding end of the conveyor 1, and the tag data writing mechanism 5 is wirelessly connected with the low-frequency electronic tag 7 within 10 cm;

[0080] A server 6, which is electrically connected to the weight sensor 2 and the tag data writing mechanism 5, and is powered by an external power supply;

[0081] The tag data writing mechanism 5 and the tag data reading mechanism 17 have the same structure.

[0082] The fire extinguisher filling tank 4 fed from the feeding end of the conveyor 1 passes through the weight sensor 2, and is weighed by the weight sensor 2 and then fed back an electrical signal to the server 6. The server 6 determines the specification information corresponding to the fire extinguisher filling tanks 4 of different specifications according to the difference in the electrical signals fed back from the weighing. The specification information is pre-entered into the server 6, and the fire extinguisher filling tanks 4 of various specifications and different weights can be intelligently identified. After identification, the server 6 controls the label data writing mechanism 5 to write the corresponding electronic information to the low-frequency electronic tag 7 of the passing fire extinguisher filling tank 4.

[0083] In some embodiments, in order to perform quantitative filling according to different types of fire extinguisher filling tanks 4, the quantitative filling mechanism 9 includes:

[0084] A metering pump 91, which is fixedly mounted on the top surface of the foam fire extinguishing agent tank 8;

[0085] The metering pump 91 is electrically connected to the controller 3, and the metering pump 91 is controlled by the controller 3 to output different quantitative foam fire extinguishing agents;

[0086] The input end of the metering pump 91 is fixedly connected to the feed pipe 92 extending to the lower end of the inner cavity of the foam fire extinguishing agent material box 8, and the output end of the metering pump 91 is fixedly connected to the elbow 93 extending to the middle of the upper end of the conveyor 1;

[0087] The upper end of the curved pipe 93 is bent downward and fixedly connected to a lifting filling head 94 .

[0088] The metering pump 91 is controlled to extract the foam fire extinguishing agent in the inner cavity of the foam fire extinguishing agent box 8 through the connecting feed pipe 92 extending to the lower end of the inner cavity of the foam fire extinguishing agent box 8, discharge it into the connecting elbow 93, and finally discharge it from the lifting filling head 94 to fill the fire extinguisher filling tank 4 below.

[0089] In some embodiments, in order to control the height of the lifting filling head 94 so that its lower end extends into the fire extinguisher filling tanks 4 of different specifications and ensure that the lower outer ring 944 fits the upper end of the fire extinguisher filling tank 4, the lifting filling head 94 includes:

[0090] The upper end of the discharge pipe 941 is fixedly connected to the upper side port of the bent pipe 93, and the lower end of the discharge pipe 941 is fixedly connected to the bellows 942;

[0091] The lower end of the bellows 942 is fixedly connected to a tapered tube 943, and the tip of the tapered tube 943 faces downward;

[0092] The lower end of the outer wall of the discharge pipe 941 and the upper end of the outer wall of the tapered pipe 943 are both fixedly sleeved with an outer ring 944, and the left and right sides between the upper and lower outer rings 944 are longitudinally fixedly connected with a cylinder 945;

[0093] The cylinders 945 on both sides work synchronously, and are connected to the external air supply system. The cylinders 945 on both sides descend synchronously to drive the bellows 942 to stretch, so that the conical tube 943 and the lower outer ring 944 descend, and the lower outer ring 944 fits the upper end of the fire extinguisher filling tank 4. The lower end of the conical tube 943 is inserted into the opening of the fire extinguisher filling tank 4 for filling. After the filling is completed, the cylinders 945 on both sides drive the conical tube 943 and the lower outer ring 944 to rise and reset.

[0094] In some embodiments, in order to descend and fit to the upper end of the fire extinguisher filling tank 4 to play a shielding role and prevent the foam fire extinguishing agent from overflowing, an annular groove 9442 is coaxially opened on the bottom surface of the lower outer ring 944, and a rubber layer 9441 is glued and fixed in the annular groove 9442. The rubber layer 9441 fits the upper end of the fire extinguisher filling tank 4 to play a better shielding role. An exhaust hole penetrating the rubber layer 9441 is opened on the upper surface of the lower outer ring 944 to facilitate the discharge of excess gas during filling.

[0095] In some embodiments, in order to facilitate writing different data to the low-frequency electronic tag 7 on the fire extinguisher filling tank 4 according to different types of the filling tank, the tag data writing mechanism 5 includes:

[0096] A strip plate 51, which is longitudinally fixedly mounted on the outer wall of the feed end of the conveyor 1;

[0097] A first electric push rod 52 is vertically fixedly mounted on the outer upper end of the strip plate 51, and the telescopic end of the first electric push rod 52 passes through the upper end of the strip plate 51;

[0098] An electronic tag reader 53 is fixedly connected to the telescopic end of the first electric push rod 52;

[0099] A spring-shaped wire 54 is electrically connected between the electronic tag reader 53 and the server 6. The electronic tag reader 53 is a direct application of the existing technology, which can write and read data to the matching low-frequency electronic tag 7. The first electric push rod 52 is provided with a matching control switch for telescopic control to adjust the distance between the electronic tag reader 53 and the low-frequency electronic tag 7 transported by the conveyor 1 to meet the recognition distance of the low-frequency electronic tag 7 passing directly in front, and will not recognize the adjacent low-frequency electronic tag 7.

[0100] In some embodiments, in order to facilitate the use of the device, the bottom edge of the conveyor 1 is evenly fixed with support legs 13 to improve the placement stability of the device, and the middle of the upper edge of the conveyor 1 is fixedly installed on the side of the feeding end to guide the filling tank 10, so that the fire extinguisher filling tank 4 transported on the conveyor 1 is transported to the center below the upper end of the quantitative filling mechanism 9;

[0101] The upper edge of the conveyor 1 is located below the upper end of the quantitative filling mechanism 9 and is longitudinally fixed with a filling tank clamping and fixing mechanism 11, which clamps and positions the fire extinguisher filling tank 4 stopped below the upper end of the quantitative filling mechanism 9 during filling, and stabilizes the position of the fire extinguisher filling tank 4 during packaging and filling;

[0102] The end of the conveyor 1 is equipped with a belt pre-tightening structure 12 to prevent the outer belt of the conveyor 1 from loosening and affecting the filling of the fire extinguisher filling tank 4 conveyed thereon;

[0103] An L-shaped cavity bracket 14 is fixedly mounted on the upper end of the foam extinguishing agent material box 8;

[0104] The upper part of the quantitative filling mechanism 9 extends into the L-shaped cavity bracket 14 , and the upper end of the quantitative filling mechanism 9 extends out of the front side of the bottom of the lateral part of the L-shaped cavity bracket 14 , and the upper part of the quantitative filling mechanism 9 is supported by the L-shaped cavity bracket 14 .

[0105] In some embodiments, in order to guide the fire extinguisher filling tank 4 to be filled in the center, the filling tank centering guide mechanism 10 includes:

[0106] There are two rotating shafts 101 distributed in front and back, and the rotating shafts 101 on both sides are longitudinally rotatably connected to the middle of the front and back sides of the upper edge of the conveyor 1, biased towards the feeding end;

[0107] A limit block 102 is fixedly assembled on the upper end of the rotating shaft 101;

[0108] One end of a guide plate 103 is sleeved on the outer wall of the rotating shaft 101, and the other end of the guide plate 103 extends to the middle of the upper end of the conveyor 1;

[0109] A torsion spring 104 is sleeved on the upper end of the outer wall of the rotating shaft 101;

[0110] One end of the torsion spring 104 is fixedly connected to the limiting block 102 , and the other end of the torsion spring 104 is fixedly connected to the upper end of the guide plate 103 .

[0111] The inner ends of the guide plates 103 on both sides are elastically pulled by the torsion springs 104 and fit together in the middle of the upper end of the conveyor 1. The elastic coefficient of the torsion springs 104 is relatively small. When the fire extinguisher filling tank 4 is transported through the conveyor 1, the fire extinguisher filling tank 4 squeezes the guide plates 103 on both sides to separate a sufficient gap. The torsion springs 104 are deformed and compressed. The fire extinguisher filling tank 4 passes through the gap in the middle of the guide plates 103 on both sides and is guided to the middle of the conveyor 1 for transportation. After the fire extinguisher filling tank 4 passes, the torsion springs 104 drive the guide plates 103 to reset.

[0112] In some embodiments, in order to fix the fire extinguisher filling tank 4 to be filled, the filling tank clamping and fixing mechanism 11 includes:

[0113] There are two vertical plates 111 arranged parallel to each other in the front and rear, and the lower ends of the vertical plates 111 are fixedly mounted on the same side of the upper edge of the middle part of the conveyor 1;

[0114] A second electric push rod 112 is vertically fixedly mounted in the middle of the outer wall of the vertical plate 111, and the telescopic end of the second electric push rod 112 penetrates the vertical plate 111;

[0115] The telescopic end of the second electric push rod 112 is fixedly connected with a clamping plate 113, and the inner wall of the clamping plate 113 is fixedly attached with a rubber pad 114. The second electric push rods 112 on both sides are connected to an external power supply through switch control, and the second electric push rods 112 work synchronously. When the second electric push rod 112 is extended, it pushes the clamping plate 113 to clamp on the outer wall of the fire extinguisher filling tank 4 for fixation.

[0116] In some embodiments, in order to locate the position between the foam fire extinguishing agent material box 8 and the conveyor 1 and ensure that the lifting filling head 94 at the upper end of the quantitative filling mechanism 9 corresponds to the upper and lower positions of the fire extinguisher filling tank 4 to be filled, a groove 15 is provided on the front side edge of the top face of the foam fire extinguishing agent material box 8;

[0117] A clamping block 16 is fixedly mounted on the upper end of the rear wall of the conveyor 1 corresponding to the groove 15 , and the clamping block 16 is inserted into the groove 15 .

[0118] The belt pre-tightening structure 12 includes strip-shaped through holes 121 symmetrically opened at the ends of the front and rear side walls of the conveyor 1, and one end of a belt pre-tightening member 122 is fixedly connected to the side of the strip-shaped through holes 121 on both sides away from the adjacent end of the conveyor 1, and the other end of the belt pre-tightening member 122 is against the inner wall of the belt of the conveyor 1;

[0119] The tape preload member 122 includes a connecting seat 1222 fixedly connected to the side of the adjacent end of the front and rear strip through holes 121 away from the conveyor 1, and a telescopic rod 1221 is fixedly assembled at one end of the connecting seat 1222 close to the adjacent end of the conveyor 1, and the front and rear telescopic rods 1221 are fixedly connected to a round rod 1223 close to the adjacent end of the conveyor 1, and a round roller 1224 that fits the inner wall of the tape is rotatably sleeved on the middle part of the outer wall of the round rod 1223, and a spring 1225 is sleeved on the outer wall of the telescopic end of the telescopic rod 1221, and both ends of the spring 1225 respectively abut against the fixed end face of the telescopic rod 1221 on the same side and the outer wall of the round rod 1223, and the springs 1225 on both sides are in a compressed state. The support of the round roller 1224 to the inner wall of the tape is maintained by the expansion and contraction of the springs 1225 on both sides, thereby playing a preload effect.

[0120] A suction cup 72 is attached to the rear wall of the tag body 71 of the low-frequency electronic tag 7 , and the tag body 71 is fixed to the outer wall of the fire extinguisher filling tank 4 by adsorption through the suction cup 72 .

[0121] The main body of the L-shaped cavity bracket 14 is an L-shaped cavity shell 141 whose longitudinal part is fixed on the foam fire extinguishing agent material box 8. A pipeline through hole 143 is opened at the lower end of the side wall of the L-shaped cavity shell 141. The elbow 93 passes through the pipeline through hole 143 and extends along the longitudinal part of the L-shaped cavity shell 141 to the front side of the transverse part of the L-shaped cavity shell 141. The upper end of the elbow 93 is bent downward and extends out of the front side of the bottom of the transverse part of the L-shaped cavity shell 141. The upper end of the lifting filling head 94 is fixedly connected with the upper end of the elbow 93 bent downward. The upper end of the lifting filling head 94 can be glued and fixed to the front side of the bottom of the transverse part of the L-shaped cavity shell 141 to improve its own fixing strength.

[0122] The front and rear side walls of the L-shaped cavity shell 141 are provided with reserved through holes 142 corresponding to the second electric push rod 112 at the rear side of the filling tank clamping and fixing mechanism 11 , and the second electric push rod 112 at the rear side passes through the reserved through holes 142 .

[0123] Working principle:

[0124] The gap between the fire extinguisher filling tanks 4 is fixed, and the intermittent operation of the conveyor 1 is coordinated, so that each fire extinguisher filling tank 4 can stop below the upper end of the quantitative filling mechanism 9 for a period of time to wait for filling. The fire extinguisher filling tanks 4 have at least two volume specifications, and the weights of the fire extinguisher filling tanks 4 with different volume specifications are different. The conveyor 1 runs slowly and steadily, providing enough time for the reading and writing of the low-frequency electronic tags 7 during movement, and the corresponding electronic information is written to the low-frequency electronic tags 7 on the fire extinguisher filling tanks 4 of different specifications passing by through the weight detection type tag data writing component;

[0125] The label data reading mechanism 17 is used to read the electronic information written in the low-frequency electronic tag 7 on the passing fire extinguisher filling tank 4, and sends different electrical signals to the controller 3 according to the different electronic information read and identified. The fire extinguisher filling tank 4 passing through the label data reading mechanism 17 is conveyed to the lower part of the upper end of the quantitative filling mechanism 9 to wait for filling. The controller 3 controls the quantitative filling mechanism 9 to quantitatively output different amounts of foam fire extinguishing agent according to the different electrical signals sent by the received label data reading mechanism 17. At the same time, the controller 3 controls the intermittent working time of the conveyor 1 to meet the filling requirements and realize the requirements of filling different amounts of foam fire extinguishing agent into fire extinguisher filling tanks 4 of different specifications.

[0126] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic filling system for a production line of foam fire extinguishing agent, characterized in that: include: A conveyor (1) on which a fire extinguisher filling tank (4) is placed horizontally, and the tank has at least two volume specifications; A low-frequency electronic tag (7) is adsorbed and fixed on the front wall of the fire extinguisher filling tank (4); A weight detection type tag data writing component is arranged at the feeding end of the conveyor (1); and the weight detection type tag data writing component is wirelessly connected to a low-frequency electronic tag (7) within 10 centimeters; A foam fire extinguishing agent material box (8), the upper end of which is fixedly connected to a quantitative filling mechanism (9), and the upper end of the quantitative filling mechanism (9) extends to the middle of the upper end of the conveyor (1); A label data reading mechanism (17) is mounted on the outer wall of the conveyor (1) and is located above the quantitative filling mechanism (9) and towards the feeding end of the conveyor (1); The tag data reading mechanism (17) is wirelessly connected to a low-frequency electronic tag (7) within 10 centimeters; A controller (3) is electrically connected to the label data reading mechanism (17), the conveyor (1) and the quantitative filling mechanism (9) respectively.

2. The automatic filling system for a production line of a foam fire extinguishing agent according to claim 1 is characterized in that: The weight detection type label data writing component comprises: A weight sensor (2) is fixedly mounted inside the feed end of the conveyor (1), and the top surface of the weight sensor (2) is in contact with the top surface of the inner wall of the belt of the conveyor (1); A tag data writing mechanism (5) is fixedly mounted on the outer wall of the feeding end of the conveyor (1), and the tag data writing mechanism (5) is wirelessly connected to a low-frequency electronic tag (7) within 10 centimeters; A server (6) electrically connected to the weight sensor (2) and the tag data writing mechanism (5); The label data writing mechanism (5) and the label data reading mechanism (17) have the same structure.

3. The automatic filling system for a production line of a foam fire extinguishing agent according to claim 1 is characterized in that: The quantitative filling mechanism (9) comprises: A metering pump (91) is fixedly mounted on the top surface of the foam fire extinguishing agent tank (8); The metering pump (91) is electrically connected to the controller (3); The input end of the metering pump (91) is fixedly connected to a feed pipe (92) extending to the lower end of the inner cavity of the foam fire extinguishing agent material box (8), and the output end of the metering pump (91) is fixedly connected to a curved pipe (93) extending to the middle of the upper end of the conveyor (1); The upper side port of the curved pipe (93) is bent downward and fixedly connected to a lifting filling head (94).

4. The automatic filling system for a production line of a foam fire extinguishing agent according to claim 3 is characterized in that: The lifting filling head (94) comprises: The upper end of the discharge pipe (941) is fixedly connected to the upper side port of the bent pipe (93) bent downward, and the lower end of the discharge pipe (941) is fixedly connected to a bellows (942); The lower end of the corrugated tube (942) is fixedly connected to a tapered tube (943), and the tip of the tapered tube (943) faces downward; The lower end of the outer wall of the discharge pipe (941) and the upper end of the outer wall of the tapered pipe (943) are both fixedly sleeved with an outer ring (944), and the left and right sides between the upper and lower outer rings (944) are both longitudinally fixedly connected with a cylinder (945); The cylinders (945) on both sides work synchronously.

5. The automatic filling system for a production line of a foam fire extinguishing agent according to claim 4, characterized in that: An annular groove (9442) is coaxially formed on the bottom surface of the outer ring (944) at the lower side, and a rubber layer (9441) is adhered and fixed in the annular groove (9442).

6. The automatic filling system for a production line of a foam fire extinguishing agent according to claim 2, characterized in that: The tag data writing mechanism (5) comprises: A strip plate (51) is longitudinally fixedly mounted on the outer wall of the feed end of the conveyor (1); A first electric push rod (52) is vertically fixedly mounted on the outer upper end of the strip plate (51), and the telescopic end of the first electric push rod (52) passes through the upper end of the strip plate (51); The telescopic end of the first electric push rod (52) is fixedly connected to an electronic tag reader / writer (53); A spring-shaped wire (54) is electrically connected between the electronic tag reader (53) and the server (6).

7. The automatic filling system for a production line of a foam fire extinguishing agent according to claim 1, characterized in that: The bottom edge of the conveyor (1) is evenly and fixedly equipped with support legs (13), and the middle part of the upper edge of the conveyor (1) is fixedly equipped with a filling tank centering guide mechanism (10) on the side of the feeding end; The upper edge of the conveyor (1) is located below the upper end of the quantitative filling mechanism (9) and is longitudinally fixedly equipped with a filling tank clamping and fixing mechanism (11); The end of the conveyor (1) is equipped with a belt pre-tightening structure (12); An L-shaped cavity bracket (14) is fixedly mounted on the upper end of the foam fire extinguishing agent material box (8); The upper half of the quantitative filling mechanism (9) extends into the L-shaped cavity bracket (14), and the upper end of the quantitative filling mechanism (9) extends out of the front side of the bottom of the transverse part of the L-shaped cavity bracket (14).

8. The automatic filling system for a production line of a foam fire extinguishing agent according to claim 7, characterized in that: The filling tank centering guide mechanism (10) comprises: There are two rotating shafts (101) distributed in the front and rear, and the rotating shafts (101) on both sides are longitudinally rotatably connected to the middle of the front and rear sides of the upper edge of the conveyor (1) and biased towards the feeding end; A limit block (102) is fixedly mounted on the upper end of the rotating shaft (101); One end of a guide plate (103) is sleeved on the outer wall of the rotating shaft (101), and the other end of the guide plate (103) extends to the middle of the upper end of the conveyor (1); A torsion spring (104) is sleeved on the upper end of the outer wall of the rotating shaft (101); One end of the torsion spring (104) is fixedly connected to the limit block (102), and the other end of the torsion spring (104) is fixedly connected to the upper end of the guide plate (103).

9. The automatic filling system for a production line of a foam fire extinguishing agent according to claim 1, characterized in that: The filling tank clamping and fixing mechanism (11) comprises: Two vertical plates (111) are arranged parallel to each other in the front and rear, and the lower ends of the vertical plates (111) are fixedly mounted on the same side of the upper edge of the middle part of the conveyor (1); A second electric push rod (112) is vertically fixedly mounted in the middle of the outer wall of the vertical plate (111), and the telescopic end of the second electric push rod (112) passes through the vertical plate (111); The telescopic end of the second electric push rod (112) is fixedly connected to a clamping plate (113), and a rubber pad (114) is glued and fixed to the inner wall of the clamping plate (113).

10. The automatic filling system for a production line of a foam fire extinguishing agent according to claim 1, characterized in that: The front side edge of the top face of the foam fire extinguishing agent material box (8) is provided with a groove (15); A clamping block (16) is fixedly mounted on the upper end of the rear wall of the conveyor (1) corresponding to the groove (15), and the clamping block (16) is inserted into the groove (15).

Images