Automatic formic acid filling mechanism

Abstract

The utility model discloses an automatic formic acid filling mechanism which comprises a conveying mechanism and a filling mechanism, a formic acid tank is placed on the conveying mechanism, the conveying mechanism comprises a first conveying frame, a second conveying frame and a third conveying frame, a weighing table is arranged at the lower end of the second conveying frame, and the filling mechanism comprises a vertical frame. An electric cylinder and a photoelectric sensor are fixedly arranged on the inner side face of the vertical frame, one end of the electric cylinder is connected with a driving plate, one end of the driving plate is connected with a liquid pipe, and a plugging block is fixedly arranged on the liquid pipe; the formic acid tank is conveyed through the conveying mechanism, after filling is completed, the formic acid tank is moved out and moved into a new formic acid tank, the position of the formic acid tank is detected through the photoelectric sensor, the formic acid tank is automatically weighed through the weighing table, and automatic quantification and continuous filling are achieved; the plugging block plugs the opening of the formic acid tank to prevent the formic acid solution from emitting pungent smell to the surrounding air.

Description

Technical Field

[0001] The utility model relates to the technical field of formic acid filling, in particular to an automatic formic acid filling mechanism. Background Art

[0002] Formic acid (chemical formula HCOOH, molecular formula CH2O2, molecular weight 46.03), commonly known as formic acid, is the simplest carboxylic acid. It is a colorless liquid with a pungent odor. Formic acid is a weak electrolyte with a melting point of 8.6°C and a boiling point of 100.8°C. It is very acidic and corrosive, and can irritate the skin and cause blistering. It exists in the secretions of bees, certain ants and caterpillars. It is an organic chemical raw material and is also used as a disinfectant and preservative. After formic acid is produced, it needs to be filled in a formic acid tank to facilitate storage and transportation of formic acid. During the filling process, a filling mechanism is needed to fill the formic acid.

[0003] The existing filling and filling mechanism has a low degree of automation, and the filling efficiency and filling quality of the filling and filling mechanism need to be improved. Since formic acid solution has a pungent odor, it will emit a pungent odor into the surrounding air during filling and filling, and long-term inhalation of the workers will affect their health. Utility Model Content

[0004] The purpose of the utility model is to provide a formic acid automatic filling mechanism to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic formic acid filling mechanism, comprising a conveying mechanism and a filling mechanism, a formic acid tank is placed on the conveying mechanism, the conveying mechanism comprises a first conveying frame, a second conveying frame and a third conveying frame, a weighing platform is arranged at the lower end of the second conveying frame, the filling mechanism comprises a vertical frame, an electric cylinder and a photoelectric sensor are fixedly arranged on the inner side surface of the vertical frame, one end of the electric cylinder is connected to a driving plate, one end of the driving plate is connected to a liquid pipe, and a blocking block is fixedly arranged on the liquid pipe.

[0006] Wherein, a connection block is fixedly arranged on the liquid pipe, and one end of the driving plate is fixedly connected to the connection block.

[0007] Wherein, a valve is fixedly arranged on the liquid pipe.

[0008] One end of the liquid pipe is connected to a liquid delivery hose, and one end of the liquid delivery hose is connected to a liquid supply system.

[0009] Wherein, the second conveying frame is located between the first conveying frame and the third conveying frame.

[0010] Wherein, the first conveying frame, the second conveying frame and the third conveying frame each include two groups of side frames, and multiple groups of rollers are arranged between the two groups of side frames.

[0011] Wherein, the plurality of groups of rollers are connected to the side frames via bearings, and two adjacent groups of rollers are connected via synchronous pulley transmission.

[0012] One end of one group of rollers is connected to the output shaft of the motor.

[0013] Wherein, a control mechanism is arranged on one side of the stand.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The conveying mechanism of the utility model is used to convey the formic acid tank, convey the formic acid tank to the bottom of the liquid pipe of the filling mechanism, fill the formic acid tank through the liquid pipe, and after the filling and filling are completed, the formic acid tank is moved out through the conveying mechanism, and a new formic acid tank to be filled is moved in. The presence, position, movement and position change of the formic acid tank on the second conveying rack are detected by a photoelectric sensor, and the weighing platform automatically weighs the formic acid tank and monitors the real-time weight change of the formic acid tank, so as to control the filling amount of the formic acid tank, realize automatic quantitative and continuous filling, and improve the filling efficiency and filling quality.

[0016] 2. When the liquid pipe of the utility model moves downward and extends into the formic acid tank under the drive of the electric cylinder, the blocking block on the liquid pipe blocks the opening of the formic acid tank, thereby achieving airtightness during filling, preventing the formic acid solution from emitting irritating odor into the surrounding air, and protecting the physical and mental health of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a side view structural schematic diagram of the utility model;

[0018] Figure 2 Another side view schematic diagram of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the conveying mechanism of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the liquid pipe of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the second conveying frame and the weighing platform of the utility model.

[0022] In the figure: 1. conveying mechanism; 2. filling mechanism; 3. formic acid tank; 11. first conveying rack; 12. second conveying rack; 13. third conveying rack; 121. side rack; 122. roller; 123. motor; 14. weighing platform; 21. vertical frame; 22. electric cylinder; 23. drive plate; 24. liquid pipe; 25. liquid delivery hose; 26. photoelectric sensor; 27. control mechanism; 241. blocking block; 242. valve; 243. connecting block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5 The utility model provides a technical solution: an automatic formic acid filling mechanism, comprising a conveying mechanism 1 and a filling mechanism 2, a formic acid tank 3 is placed on the conveying mechanism 1, the conveying mechanism 1 comprises a first conveying frame 11, a second conveying frame 12 and a third conveying frame 13, a weighing platform 14 is arranged at the lower end of the second conveying frame 12, the filling mechanism 2 comprises a stand 21, an electric cylinder 22 and a photoelectric sensor 26 are fixedly arranged on the inner side surface of the stand 21, one end of the electric cylinder 22 is connected to a driving plate 23, one end of the driving plate 23 is connected to a liquid pipe 24, and a blocking block 241 is fixedly arranged on the liquid pipe 24.

[0025] The conveying mechanism 1 is used to convey the formic acid tank 3, convey the formic acid tank 3 to the bottom of the liquid pipe 24 of the filling mechanism 2, fill the formic acid tank 3 through the liquid pipe 24, and after the filling is completed, the formic acid tank 3 is removed through the conveying mechanism 1, and a new formic acid tank 3 to be filled is moved in, so as to realize the continuous automatic filling of multiple groups of formic acid tanks 3;

[0026] During the filling process, the weighing platform 14 automatically weighs the formic acid tank 3 and monitors the real-time weight change of the formic acid tank 3, thereby controlling the filling amount of the formic acid tank 3 and realizing automatic quantitative filling;

[0027] The photoelectric sensor 26 uses the principle of the photoelectric effect. When light shines on the photosensitive element, it will stimulate dots, causing electrons to move inside the device to form an electric current. When the light is blocked or obstructed, the current inside the device changes, thereby generating an electrical signal. The photoelectric sensor 26 detects the presence, position, movement and position change of the formic acid tank 3 on the conveying mechanism 1, and converts this information into an electrical signal for use by the control system. The control system controls the start and braking of the conveying mechanism 1 and controls the automatic filling operation of the filling mechanism 2.

[0028] Among them, a connecting block 243 is fixedly provided on the liquid pipe 24, and one end of the driving plate 23 is fixedly connected to the connecting block 243. When the electric cylinder 22 is working, the driving plate 23 at one end thereof is driven to move axially, and the driving plate 23 drives the connecting block 243 to move axially synchronously, and the connecting block 243 drives the liquid pipe 24 to move axially synchronously. By controlling the telescopic stroke of the electric cylinder 22, the axial position of the liquid pipe 24 is flexibly adjusted, thereby realizing flexible adjustment of the filling position.

[0029] During filling, the liquid pipe 24 moves downward for a distance driven by the electric cylinder 22, so that the liquid pipe 24 extends into the formic acid tank 3. At the same time, the blocking block 241 on the liquid pipe 24 blocks the opening of the formic acid tank 3, thereby achieving airtightness during filling, preventing the formic acid solution from emitting irritating odor into the surrounding air, and protecting the physical and mental health of the staff.

[0030] Among them, a valve 242 is fixedly provided on the liquid pipe 24, and the valve 242 can be opened and closed automatically. When the valve 242 is opened, the flow channel of the liquid pipe 24 is in an open state, and the formic acid solution can be normally added at this time. When the valve 242 is closed, the flow channel of the liquid pipe 24 is in a closed state, and the addition of formic acid solution is stopped.

[0031] Among them, one end of the liquid pipe 24 is connected to the liquid delivery hose 25, and one end of the liquid delivery hose 25 is connected to the liquid supply system. The liquid supply system includes a pump body and a formic acid solution storage tank. The formic acid solution in the formic acid solution storage tank is pumped to the liquid delivery hose 25 by the pump body, and then the formic acid solution is transported to the liquid pipe 24 through the liquid delivery hose 25. Finally, the formic acid solution is filled into the formic acid tank 3 through the liquid pipe 24;

[0032] When the liquid supply system is working, the valve 242 is in an open state, and when the liquid supply system is not working, the valve 242 is in a closed state.

[0033] Among them, the second conveyor rack 12 is located between the first conveyor rack 11 and the third conveyor rack 13, and the second conveyor rack 12 is located directly below the filling mechanism 2. The length and number of the first conveyor rack 11 and the third conveyor rack 13 can be selectively set according to actual usage requirements. The formic acid tank 3 to be filled is moved to the second conveyor rack 12 through the first conveyor rack 11, and the third conveyor rack 13 is used to receive the formic acid tank 3 after the filling by the filling mechanism 2 is completed, and move the formic acid tank 3 out of the operating area.

[0034] Among them, the first conveyor frame 11, the second conveyor frame 12 and the third conveyor frame 13 each include two groups of side frames 121, and multiple groups of rollers 122 are arranged between the two groups of side frames 121. When the multiple groups of rollers 122 rotate, the rotational force is converted into a linear driving force, and the upper formic acid tank 3 is driven to perform linear motion by relying on the linear driving force.

[0035] The plurality of roller groups 122 are connected to the side frame 121 via bearings, and two adjacent roller groups 122 are connected via synchronous pulley transmission.

[0036] One end of one group of rollers 122 is connected to the output shaft of the motor 123 , and when the motor 123 is working, it drives the multiple groups of rollers 122 to rotate synchronously, so as to transport the formic acid tank 3 in a straight line.

[0037] A control mechanism 27 is provided on one side of the stand 21 .

[0038] Working principle: The formic acid tank 3 to be filled is moved to the second conveyor rack 12 by the first conveyor rack 11, and the presence, position, movement and position change of the formic acid tank 3 on the second conveyor rack 12 are detected by the photoelectric sensor 26, and the information is converted into an electrical signal for use by the control system. The control system controls the start and brake of the conveying mechanism 1 and the automatic filling operation of the filling mechanism 2. When the formic acid tank 3 moves to the bottom of the liquid pipe 24, the filling is carried out. The liquid pipe 24 moves downward for a distance under the drive of the electric cylinder 22, so that the liquid pipe 24 extends into the interior of the formic acid tank 3. At the same time, the blocking block 241 on the liquid pipe 24 blocks the opening of the formic acid tank 3, and the valve 242 is opened to achieve airtightness during filling, and the pump body of the liquid supply system pumps the formic acid solution. The formic acid solution in the storage tank is transported to the liquid delivery hose 25, and then transported to the liquid pipe 24 through the liquid delivery hose 25, and finally filled through the liquid pipe 24, and the formic acid solution is filled into the formic acid tank 3. The weighing platform 14 automatically weighs the formic acid tank 3 and monitors the real-time weight change of the formic acid tank 3 to control the filling amount of the formic acid tank 3 and realize automatic quantitative filling. After the filling is completed, the liquid supply system is braked, the valve 242 is closed, and the components of the filling mechanism 2 are reset. The third conveying rack 13 receives the formic acid tank 3 after the filling by the filling mechanism 2, and moves the formic acid tank 3 out of the working area. The first conveying rack 11 is supplemented with a new formic acid tank 3 to be filled to the second conveying rack 12, and the above actions are repeated to realize continuous automatic filling of multiple groups of formic acid tanks 3.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A formic acid automatic filling mechanism, comprising a conveying mechanism (1) and a filling mechanism (2), characterized in that: A formic acid tank (3) is placed on the conveying mechanism (1), the conveying mechanism (1) comprises a first conveying frame (11), a second conveying frame (12) and a third conveying frame (13), a weighing platform (14) is arranged at the lower end of the second conveying frame (12), the filling mechanism (2) comprises a stand (21), an electric cylinder (22) and a photoelectric sensor (26) are fixedly arranged on the inner side surface of the stand (21), one end of the electric cylinder (22) is connected to a driving plate (23), one end of the driving plate (23) is connected to a liquid pipe (24), and a blocking block (241) is fixedly arranged on the liquid pipe (24).

2. The automatic formic acid filling mechanism according to claim 1, characterized in that: A connecting block (243) is fixedly provided on the liquid pipe (24), and one end of the driving plate (23) is fixedly connected to the connecting block (243).

3. The automatic formic acid filling mechanism according to claim 1, characterized in that: A valve (242) is fixedly arranged on the liquid pipe (24).

4. The automatic formic acid filling mechanism according to claim 1, characterized in that: One end of the liquid pipe (24) is connected to a liquid delivery hose (25), and one end of the liquid delivery hose (25) is connected to a liquid supply system.

5. The automatic formic acid filling mechanism according to claim 1, characterized in that: The second conveying frame (12) is located between the first conveying frame (11) and the third conveying frame (13).

6. The automatic formic acid filling mechanism according to claim 5, characterized in that: The first conveying frame (11), the second conveying frame (12) and the third conveying frame (13) each comprise two groups of side frames (121), and a plurality of groups of rollers (122) are arranged between the two groups of side frames (121).

7. The automatic formic acid filling mechanism according to claim 6, characterized in that: A plurality of groups of rollers (122) are connected to the side frame (121) via bearings, and two adjacent groups of rollers (122) are connected via synchronous pulley transmission.

8. The automatic formic acid filling mechanism according to claim 7, characterized in that: One end of one group of the rollers (122) is connected to the output shaft of the motor (123).

9. The automatic formic acid filling mechanism according to claim 1, characterized in that: A control mechanism (27) is provided on one side of the stand (21).

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