Automatic dye liquor batching system for laboratory

Abstract

The utility model provides an automatic dye liquor batching system for a laboratory, which comprises a dye liquor centralized storage device, a dye liquor conveying device, a color paste weighing device and a PLC (Programmable Logic Controller), dye liquor in a dye liquor bottle is immersed in constant-temperature water through the dye liquor centralized storage device, so that the dye liquor is stored at a proper temperature; the dye liquor can be smoothly conveyed, the dye liquor with different color numbers can keep the same dissolving property, and the problem that the batch difference of color light of a small sample is large due to the change of an operation environment is solved. The batching system can be used for automatically conveying quantitative color paste and is suitable for preparing a small amount of small sample color paste in a laboratory.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cloth printing and dyeing equipment field, especially relate to a dye liquor automatic batching system for laboratory. BACKGROUND

[0002] Real wax wax printing cloth is a kind of printing product using rosin, paraffin, beeswax etc. as anti-printing medium, its printing style is rough, color is bright, has wax thread fine nature, pattern realistic, consistent style of front and back, is loved by African people. With the development of market, people's demand level is continuously improved, and a large number of new patterns, new style products become the mainstream of production. To meet market demand, increase product competitiveness, enterprises need to develop new products according to the popular style, therefore, the workload of sample making and sample copying in laboratory increases sharply. The sample making and sample copying in laboratory in the prior art rely on manual operation, and the operator needs to take dye liquor from different color number dye liquor storage tanks, and accurately weighs according to design requirements, and transfers the quantitative dye liquor of different color numbers to the sizing cup, so that the manual operation efficiency is low, and errors occur when busy. The small sample color paste is less configured each time, and the addition amount of each color number dye liquor is less, so that the weighing error is uncontrollable, the batch difference of small sample color paste is large, and the production demand cannot be met. CONTENT OF THE UTILITY MODEL

[0003] The utility model discloses a dye liquor automatic batching system for laboratory can automatically quantitative batching to solve the technical problems, such as big error and big workload of manual operation when sample making in laboratory of printing and dyeing enterprise in the prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme that:

[0005] A dye liquor automatic batching system for laboratory, including dye liquor centralized storage device, dye liquor conveying device, color paste weighing device and PLC controller, the dye liquor centralized storage device includes water tank, is provided with a plurality of dye liquor bottle placement holes in water tank, is installed with dye liquor bottle in dye liquor bottle placement hole, the water tank is filled with constant-temperature water;

[0006] The dye liquor conveying device includes dye liquor conveying pipe, infusion pump and centralized discharge nozzle, the centralized discharge nozzle includes aperture plate, is provided with a plurality of through holes on aperture plate, the upper end of through hole is provided with pipe connection nozzle, and the lower end of through hole is connected with discharge nozzle;The liquid inlet of infusion pump is connected to the corresponding dye liquor bottle through the dye liquor conveying pipe, and the liquid outlet of infusion pump is connected to the corresponding pipe connection nozzle through the dye liquor conveying pipe;

[0007] The color paste weighing device includes the weighing device below the centralized discharge nozzle, and the sizing cup is placed on the weighing device;

[0008] The infusion pump is electrically connected with the PLC controller, and the PLC controller and the weighing device are both connected with the upper computer.

[0009] As preferred, the dye solution bottle is provided with a number.

[0010] As preferred, the color paste weighing device comprises a weighing box, a weighing table is arranged in the weighing box, and the weighing device is placed on the weighing table.

[0011] As preferred, the infusion pump mounting rack is further provided, and the infusion pumps are arranged on the mounting rack in sequence, and the infusion pumps are provided with numbers corresponding to the dye solution bottles.

[0012] As preferred, the discharge nozzle is fixed on the mounting rack through a discharge nozzle support.

[0013] As preferred, the dye solution centralized storage device comprises an inlet pipe and an outlet pipe connected with a water tank, the water tank is provided with a temperature sensor and a liquid level gauge, and a display screen and an adjusting button are mounted on the side wall of the water tank.

[0014] As preferred, the infusion pump is a peristaltic pump.

[0015] As preferred, the discharge nozzle is transparent and tapered at the lower end.

[0016] Compared with the prior art, the advantages and positive effects of the present application are that:

[0017] The dye solution automatic batching system for laboratories can realize automatic conveying and quantifying of color paste, is suitable for small sample color paste preparation in laboratories, and has the advantages that the dye solution in the dye solution bottle is immersed in constant-temperature water, the dye solution is stored at a suitable temperature, different color numbers of dye solutions maintain the same dissolving performance, the dye solution can be smoothly conveyed, and the problem of large batch difference of small samples caused by changes in operating environment is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a dye solution centralized storage device structure diagram of the dye solution automatic batching system for laboratories of the present application;

[0019] Figure 2 It is a color paste weighing device structure diagram of the dye solution automatic batching system for laboratories of the present application;

[0020] Figure 3 It is a discharge nozzle structure diagram of the dye solution automatic batching system for laboratories of the present application;

[0021] In the above figures: 1. Centralized dye liquor storage device; 11. Box body; 12. Temperature display screen; 13. Temperature adjustment button; 14. Water tank; 15. Horizontal partition; 16. Dye liquor bottle; 17. Water inlet pipe; 18. Water outlet pipe; 2. Dye liquor conveying pipe; 3. Centralized discharge nozzle; 31. Orifice plate; 32. Pipeline connector; 33. Discharge nozzle; 4. Weighing box; 41. Weighing platform; 42. Mounting frame; 5. Weighing device; 6. Mixing cup. Detailed Implementation

[0022] To better understand this utility model, the following detailed description is provided in conjunction with the accompanying drawings and embodiments.

[0023] Example 1

[0024] An automated dye liquor dispensing system for laboratory use includes a centralized dye liquor storage device 1, a dye liquor conveying device, a pigment weighing device 5, and a PLC controller. Figure 1 As shown, the centralized dye liquor storage device 1 includes a housing 11. A temperature display screen 12 is installed on the front of the housing 11, and a temperature adjustment button 13 and a power switch are located below the temperature display screen 12. A water tank 14 is provided on the upper part of the housing 11. A horizontal partition 15 is installed inside the water tank 14, and several dye liquor bottle 16 mounting holes are arranged sequentially on the horizontal partition 15. Dye liquor bottles 16 are installed in the mounting holes. In this embodiment, the dye liquor bottles 16 are long cylindrical plastic bottles of 5cm*5cm*40cm. Each dye liquor bottle 16 contains a dye liquor mother liquor of a different color number. To distinguish the dye liquor bottles 16 of different color numbers, each dye liquor bottle 16 is marked with a number. The water tank 14 contains constant temperature water, and a temperature sensor for detecting the constant temperature water temperature and a level gauge for detecting the water level are installed inside the water tank 14. To facilitate water supply to the water tank 14, an inlet pipe 17 and an outlet pipe 18 are connected to the water tank 14, and both the inlet pipe 17 and the outlet pipe 18 are equipped with solenoid valves. To maintain a constant temperature water in the water tank 14, a water pump can continuously pump hot water into the water tank through the inlet pipe 17 and out through the outlet pipe 18 to maintain the constant temperature water flow. Alternatively, an electric heating grid can be installed at the bottom of the water tank 14 to heat the water in the water tank 14. The solenoid valves, temperature sensors, level gauges, electric heating grids, and temperature display screen 12 are all electrically connected to the PLC controller. The PLC controller controls the electric heating grid to heat the constant temperature water according to the set temperature, thus achieving a constant temperature water bath. At the same time, the PLC controller maintains the water level in the water tank 14 within a preset range based on the water level value detected by the level gauge, ensuring that the dye solution in the dye bottle 16 is immersed in the constant temperature water. When the dye solution is stored at a suitable constant temperature, different color dye solutions maintain the same solubility, facilitating the smooth delivery of the dye solution and the accurate preparation of small sample color pastes.

[0025] like Figure 2 , Figure 3As shown, the dye solution conveying device includes a dye solution conveying pipe 2, several infusion pumps and a centralized discharge nozzle 3. The centralized discharge nozzle 3 includes a hole plate 31, which is provided with several through holes arranged in sequence, the upper end of the through hole is provided with a pipe connection nozzle 32, the lower end of the through hole is connected with a discharge nozzle 33, the discharge nozzle 33 is transparent and the lower end is tapered. In this embodiment, the infusion pump adopts a small DC peristaltic pump with a rated voltage of 12v. Such peristaltic pump is easy to be controlled by electricity, and can be forward rotated or reversed, and the flow rate increases with the increase of the applied voltage. The real-time conveying flow rate can be controlled by the PLC controller. The liquid inlet of each peristaltic pump is connected with the corresponding dye solution bottle 16 through the dye solution conveying pipe 2, and the liquid outlet of the peristaltic pump is connected with the corresponding pipe connection nozzle 32 through the dye solution conveying pipe 2. All peristaltic pumps share one set of power supply, the positive poles of which are connected in series, and the negative pole is electrically connected with the PLC controller. Meanwhile, the PLC controller is communicatively connected with the upper computer, and the PLC controller controls whether each peristaltic pump is started or not according to the control signal of the upper computer.

[0026] The color paste weighing device 5 includes a weighing box 4, which includes a weighing table 41, and the upper end of the weighing table 41 is provided with a peristaltic pump mounting rack 42. The peristaltic pumps are arranged in sequence on the mounting rack 42, and the infusion pumps are provided with numbers corresponding to the dye solution bottles 16. The weighing table 41 is placed with the weighing device 5, and the weighing device 5 is placed with the grouting cup 6 for receiving the dye solution. The discharge nozzle 33 is fixed on the mounting rack 42 through the discharge nozzle 33 support, and the weighing device 5 and the grouting cup 6 are located directly below the discharge nozzle 33. In this embodiment, the weighing device 5 adopts an electronic balance with an accuracy of one thousandth of a gram. The electronic balance is communicatively connected with the upper computer through the 485 port, and can transmit the weighing value to the upper computer in real time.

[0027] Embodiment 2

[0028] In order to realize accurate preparation of small sample color paste, this embodiment proposes a dye solution automatic dosing method for laboratory, which includes the following steps:

[0029] The types and amounts of dye solutions required for the small sample color paste to be configured are input in the upper computer. The upper computer calculates the actual addition amount of each dye solution according to the dye solution concentration information stored in the database in advance.

[0030] The dye solution cup is placed on the weighing device, and then the start button is clicked. The PLC controller controls the corresponding peristaltic pump of the required dye solution bottle to start conveying the dye solution into the grouting cup in sequence.

[0031] In order to ensure the discharge accuracy and improve the discharge speed, the flow rate adjustment process of the peristaltic pump during single discharge is as follows:

[0032] The target discharge amount Q0 is set, and the real-time discharge amount Q t, the allowable error E of the end point of the discharging, then in a discharging process, the real-time remaining discharging quantity Q1=Q0-Q t ;

[0033] The safe discharging value M1 of the peristaltic pump is set, when Q1≥M1, the PLC controller controls the peristaltic pump to be continuously turned on, and the driving voltage of the peristaltic pump is in a linear positive correlation with Q1, that is, the greater Q1 is, the greater the driving voltage is, and vice versa, meanwhile, the maximum value of the voltage cannot be higher than the rated working voltage, and the minimum value should be able to ensure the normal working of the peristaltic pump. When Q1M1, the PLC controller controls the peristaltic motor to be intermittently turned on, so that the peristaltic pump is in a "pointing" state, that is, the peristaltic pump motor is given a turn-on voltage on-off process for an instant, so that the peristaltic pump can only pump out a small amount of dye solution. By adjusting the voltage and the on-off time of the process, one drop of dye solution can be dropped from the nozzle every three times of pointing process. In the pointing state, the dropping speed of the dye solution is controlled by controlling the interval time of the adjacent two pointing processes, that is, the interval time T of the two turn-on processes is in a linear positive correlation with Q1, the greater Q1 is, the shorter the interval time is. When Q1 is less than or equal to the value E, the discharging is ended.

[0034] After a single discharging is ended, in order to prevent the dye solution in the material pipe from dropping under the action of gravity, the PLC system switches the positive and negative electrodes of the power supply, and controls the peristaltic pump to be reversed for a few seconds to empty the residual dye solution in the discharging nozzle. Finally, the positive and negative electrodes of the power supply are switched, so as to prepare for the next dye solution conveying.

[0035] The automatic dye solution dispensing system for laboratories can realize automatic conveying of quantitative color paste, is suitable for small sample color paste preparation in laboratories, and has the advantages that the dye solution in the dye solution bottle is immersed in constant-temperature water, the dye solution is stored at a suitable temperature, different color numbers of dye solutions all have the same dissolving performance, the dye solution can be conveyed smoothly, the problem of large batch difference caused by changes in the operation environment is avoided, the precise quantitative conveying can be realized by cooperating with the dispensing method, the conveying efficiency is ensured, the weighing error is effectively controlled, and the batch difference is reduced.

[0036] The above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms, any skilled person in the art can change or modify the above disclosed technical content into equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the utility model still belongs to the protection scope of the technical scheme of the utility model.

Claims

1. An automated dye solution dispensing system for laboratory use, characterized in that: The device includes a centralized dye liquor storage device, a dye liquor conveying device, a color paste weighing device, and a PLC controller. The centralized dye liquor storage device includes a water tank with several dye liquor bottle mounting holes. Dye liquor bottles are installed in the dye liquor bottle mounting holes. The water tank contains constant temperature water. The dye liquor conveying device includes a dye liquor conveying pipe, a conveying pump, and a centralized discharge nozzle. The centralized discharge nozzle includes an orifice plate with several through holes. A pipe connector is provided at the upper end of each through hole, and a discharge nozzle is connected to the lower end of each through hole. The inlet of the conveying pump is connected to the corresponding dye liquor bottle via the dye liquor conveying pipe, and the outlet of the conveying pump is connected to the corresponding pipe connector via the dye liquor conveying pipe. The pigment weighing device includes a weighing device located below the centralized discharge nozzle, on which a pigment mixing cup is placed; The infusion pump is electrically connected to the PLC controller, and both the PLC controller and the weighing device are communicatively connected to the host computer.

2. The automatic dye dispensing system for laboratory use according to claim 1, characterized in that: The dye bottles are marked with numbers.

3. The automatic dye solution dispensing system for laboratory use according to claim 1, characterized in that: The pigment weighing device includes a weighing box, a weighing platform is provided inside the weighing box, and the weighing device is placed on the weighing platform.

4. The automatic dye solution dispensing system for laboratory use according to claim 2, characterized in that: It also includes an infusion pump mounting bracket, on which infusion pumps are arranged in sequence, and each infusion pump is marked with a number corresponding to the dye bottle.

5. The automatic dye dispensing system for laboratory use according to claim 4, characterized in that: The discharge nozzle is fixed to the mounting frame by a discharge nozzle bracket.

6. The automatic dye dispensing system for laboratory use according to claim 1, characterized in that: The centralized dye liquor storage device includes an inlet pipe and an outlet pipe connecting to the water tank. The water tank is equipped with a temperature sensor and a level gauge, and a display screen and adjustment buttons are installed on the side wall of the water tank.

7. The automatic dye dispensing system for laboratory use according to claim 1, characterized in that: The infusion pump is a peristaltic pump.

8. The automatic dye dispensing system for laboratory use according to claim 1, characterized in that: The discharge nozzle is transparent and has a conical lower end.

Images