Material cleaning control method

Abstract

The invention discloses a material cleaning control method which comprises the following steps that A, a cleaning machine obtains the height a1 of a material to be cleaned, and the height b1 of the amount of cleaning liquid to be added is obtained according to the height a1 of the material and a preset model X; b, liquid is added into the cleaning machine, the pressure value of the bottom of the cleaning machine is obtained in real time in the liquid adding process, the corresponding actual liquid adding amount is calculated, and when the actual liquid adding amount is equal to the amount b1 of the cleaning liquid to be added, the next step is carried out; c, the cleaning machine conducts cleaning, in the cleaning process, the pressure value of the bottom of the cleaning machine is obtained in real time, the corresponding real-time liquid amount is calculated, when the real-time liquid amount is lower than the amount b1 of the cleaning liquid to be added, the cleaning machine stops and gives an alarm, and otherwise, the next step is conducted; d, the cleaning machine discharges liquid, the pressure value of the bottom of the cleaning machine is obtained in real time in the liquid discharging process, the corresponding real-time liquid amount is calculated, and when the real-time liquid amount is zero, the cleaning machine completes material cleaning; the internal liquid level of the cleaning machine is monitored in the whole process.

Description

Technical Field

[0001] The present invention relates to the technical field of material cleaning, and in particular to a material cleaning control method. Background Art

[0002] The rubber plug cleaning machine is mainly used for cleaning and sterilizing rubber plugs (aluminum caps) in pharmaceutical factories. It can automatically complete the cleaning, siliconization, sterilization, drying, cooling, aseptic discharging and other processes of medicinal rubber plugs (aluminum caps). When the existing horizontal rubber plug machine needs to add liquid for detection, a liquid level switch is generally used. The liquid level can only be detected when it exceeds the switch position. Other static pressure liquid level gauges are also used. Affected by the pressure in the cavity, the detection error is large when the cavity is pressurized, and the communicating vessel type magnetic flap liquid level gauge. The liquid level gauge pipe and the interior cannot be effectively cleaned and sterilized, and cannot meet the higher cleanliness requirements of the rubber plug machine. In the prior art, such as the liquid level measuring device with patent number CN201621256924.9, a pressure transmitter is used to detect the pressure value of the liquid and convert it to the corresponding liquid height. Although it can avoid the impact of the splash of the cleaning liquid on the sensor during the cleaning process, it cannot meet the requirements of the full process liquid level detection of the cleaning machine. Summary of the invention

[0003] The purpose of the invention is to provide a material cleaning control method to solve the problem of liquid level monitoring in the whole process of material cleaning.

[0004] The present invention is implemented in this way: a material cleaning control method comprises the following steps:

[0005] Step A: The cleaning machine obtains the height a1 of the material to be cleaned, and obtains the height b1 of the cleaning liquid to be added according to the material height a1 and the preset model X;

[0006] Step B: Add liquid to the cleaning machine. During the adding process, the pressure value at the bottom of the cleaning machine is obtained in real time, and the corresponding actual added liquid amount is calculated. When the actual added liquid amount is equal to the amount of cleaning liquid to be added b1, proceed to the next step;

[0007] Step C: The cleaning machine cleans. During the cleaning process, the pressure value at the bottom of the cleaning machine is obtained in real time, and the corresponding real-time liquid volume is calculated. When the real-time liquid volume is lower than the cleaning liquid volume b1 to be added, the cleaning machine stops and alarms, otherwise proceed to the next step;

[0008] Step D: The cleaning machine drains the liquid. During the draining process, the pressure value at the bottom of the cleaning machine is obtained in real time, and the corresponding real-time liquid volume is calculated. When the real-time liquid volume is zero, the cleaning machine completes material cleaning.

[0009] In the working process of the existing rubber plug cleaning machine, a fixed-position liquid level gauge is arranged in the cavity. Different amounts of cleaning liquid are required for different materials, so it is necessary to set up multiple liquid level gauges, which not only increases the cost, but also adds more sanitary dead corners, causing the sanitary standards to fail to meet the standards. In the prior art, a pressure transmitter is installed at the initial liquid level, and the height is converted into the height plus the initial liquid level height according to the detection pressure of the pressure transmitter, so that the need to set up multiple liquid level gauges to meet the cleaning of different amounts of materials can be solved. Regarding how the rubber plug cleaning machine monitors the liquid level throughout the process, and at the same time, in the cleaning process of the rubber plug cleaning machine, the present invention obtains the amount of cleaning liquid to be added according to the material amount and the preset model, obtains the pressure value at the bottom of the cleaning machine in real time during the liquid addition process, calculates the corresponding actual liquid addition amount, and also obtains the pressure value at the bottom of the cleaning machine in real time during the cleaning process and the liquid discharge process. According to the change of the pressure value, it can be monitored in real time whether the cleaning liquid inside the cleaning machine is added in place, whether there is leakage during the working process, and whether it is completely discharged, so as to solve the problem of how the rubber plug cleaning machine in the prior art monitors the liquid level throughout the process, and at the same time, how to monitor the possible leakage during the cleaning process of the rubber plug cleaning machine.

[0010] A further technical solution of the present invention is that the height of the cleaning liquid to be added in the preset model X is 20mm-100mm higher than the height of the material. The height of the cleaning liquid in the cavity should be higher than the height of the material in the cavity to ensure that the material is submerged. Specifically, the height of the cleaning liquid is 20mm-100mm higher than the height of the material. When the height is lower than 20mm, some rubber plugs may not be submerged when the rubber plug cleaning machine rotates for cleaning, so the rubber plug cleaning effect is poor. When the height is higher than 100mm, it causes waste of cleaning liquid and reduces the maximum cleaning volume of the cleaning machine.

[0011] A further technical solution of the present invention is: the cleaning chamber of the cleaning machine is in a sealed environment; the actual liquid level in the cleaning chamber is calculated based on the difference between the first pressure value P1 at the bottom of the cleaning machine and the second pressure value P2 at the top of the cleaning machine. When the cleaning machine is cleaning, the entire cleaning chamber is in a sealed environment, and pressurized to ensure the cleaning effect. Therefore, in order to avoid the influence of the rotation of the cleaning chamber under the pressurized and sealed environment on the bottom monitoring pressure value, the pressure values ​​of the bottom and top of the cleaning machine are collected. The second pressure value at the top is the gas pressure value above the liquid surface, and the first pressure value at the bottom is the sum of the pressure of the gas above the liquid surface and the pressure value of the cleaning liquid. Therefore, by calculating the difference between the first pressure value and the second pressure value, the monitoring of the liquid level in the cleaning chamber by the sealed environment and the pressurized environment can be effectively eliminated, thereby ensuring the accuracy of the monitoring.

[0012] A further technical solution of the present invention is that the actual liquid level H = (P1-P2) / ρg, which effectively avoids the influence of the pressure change of the gas above the liquid surface on the first pressure value, and ensures the accuracy of liquid level monitoring.

[0013] A further technical solution of the present invention is that the cleaning machine comprises an outer cavity and an inner cavity, the inner cavity is connected to the outer cavity, and the inner cavity is rotatable. The rotation of the inner cavity drives the material to be cleaned, and the cleaning effect is good.

[0014] A further technical solution of the present invention is: the cleaning machine is provided with a first pressure transmitter connected to the top of the outer cavity and a second pressure transmitter connected to the bottom of the outer cavity, and the controller on the cleaning machine calculates the actual liquid level in the cleaning machine according to the pressure difference between the first pressure transmitter and the second pressure transmitter. The first pressure transmitter is used to obtain the first pressure value P1, and the second pressure transmitter is used to obtain the second pressure value P2. The first pressure transmitter is arranged at the top of the fixed outer cavity, and is not affected by the rotation of the inner cavity to monitor the pressure value at the top of the cleaning cavity in real time. The second pressure transmitter is connected to the bottom of the outer cavity, and is also not affected by the rotation of the inner cavity to ensure the accuracy of pressure monitoring.

[0015] A further technical solution of the present invention is: a liquid circulation mechanism is provided on one side of the cleaning machine, the liquid inlet end of the liquid circulation mechanism is connected to the outer cavity and the liquid outlet end is coaxial with the rotating axis of the inner cavity. The liquid circulation mechanism is used to extract the liquid from the bottom of the cleaning cavity and return it to the cleaning cavity through the rotating axis to form a cycle, thereby improving the cleaning effect of the material; the rotation of the inner cavity cooperates with the liquid circulation mechanism, so that the material is washed through the liquid outlet end of the liquid circulation mechanism during the process of being turned over in the cleaning cavity, so that the material can be fully washed.

[0016] A further technical solution of the present invention is that: the liquid outlet of the liquid circulation mechanism is connected with a cleaning pipe, and the cleaning pipe is placed between the inner cavity and the outer cavity and arranged close to the upper half of the cleaning cavity. During the material cleaning process, the lower half of the cleaning cavity is always below the liquid surface, which is convenient for cleaning, but the outer cavity of the upper half of the cleaning cavity cannot be submerged in the liquid. In order to ensure the cleanliness of the entire cleaning cavity, the liquid outlet of the liquid circulation mechanism is connected with a cleaning pipe for cleaning the upper half of the outer cavity.

[0017] The beneficial effects of the present invention are as follows: in view of how to monitor the liquid level of a rubber stopper cleaning machine throughout the entire process, and in view of the possibility of liquid leakage during the cleaning process of the rubber stopper cleaning machine, the present invention obtains the amount of cleaning liquid to be added according to the material amount and the preset model, obtains the pressure value at the bottom of the cleaning machine in real time during the liquid adding process, calculates the corresponding actual liquid adding amount, and also obtains the pressure value at the bottom of the cleaning machine in real time during the cleaning and draining processes. According to the change of the pressure value, it is possible to monitor in real time whether the cleaning liquid inside the cleaning machine has been added in place, whether there is liquid leakage during the working process, and whether it has been drained. This solves the problem of how to monitor the liquid level of a rubber stopper cleaning machine throughout the entire process in the prior art, and in view of the possibility of liquid leakage during the cleaning process of the rubber stopper cleaning machine, how to monitor it. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a flow chart of a material cleaning control method provided by the present invention;

[0019] Figure 2 It is a structural schematic diagram of the cleaning machine provided by the present invention;

[0020] Figure 3 is a schematic structural diagram of the cleaning machine provided by the present invention at another liquid level;

[0021] Figure numerals: 1. cleaning machine, 2. first pressure transmitter, 3. second pressure transmitter, 4. controller, 5. cleaning liquid, 6. material to be cleaned, 7. inner cavity, 8. outer cavity, 9. cleaning pipeline, 10. liquid circulation mechanism. DETAILED DESCRIPTION

[0022] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0023] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0024] Embodiment 1:

[0025] Figure 1-3 A material cleaning control method is shown, comprising the following steps:

[0026] Step A: the cleaning machine 1 obtains the height a1 of the material to be cleaned, and obtains the height b1 of the cleaning liquid 5 to be added according to the material height a1 and the preset model X;

[0027] Step B: Add liquid to the cleaning machine 1. During the liquid adding process, the pressure value at the bottom of the cleaning machine 1 is obtained in real time, and the corresponding actual liquid adding amount is calculated. When the actual liquid adding amount is equal to the amount b1 of the cleaning liquid 5 to be added, proceed to the next step;

[0028] Step C: The cleaning machine 1 cleans. During the cleaning process, the pressure value at the bottom of the cleaning machine 1 is obtained in real time, and the corresponding real-time liquid volume is calculated. When the real-time liquid volume is lower than the amount b1 of the cleaning liquid 5 to be added, the cleaning machine 1 stops and alarms, otherwise proceed to the next step;

[0029] Step D: The cleaning machine 1 drains the liquid. During the draining process, the pressure value at the bottom of the cleaning machine 1 is obtained in real time, and the corresponding real-time liquid volume is calculated. When the real-time liquid volume is zero, the cleaning machine 1 completes material cleaning.

[0030] During the operation of the existing rubber plug cleaning machine 1, a fixed-position liquid level gauge is installed in the cavity. Different amounts of cleaning liquid 5 are required for different materials, so multiple liquid level gauges need to be installed, which not only increases the cost, but also adds more sanitary dead corners, causing the sanitary standards to fail to meet the standards. In the prior art, a pressure transmitter is installed at the initial liquid level, and the height is converted according to the detection pressure of the pressure transmitter plus the initial liquid level height, which can solve the problem of setting multiple liquid level gauges to meet the cleaning of different material quantities. How to monitor the liquid level of the rubber plug cleaning machine 1 throughout the entire process, and at the same time, in the cleaning process of the rubber plug cleaning machine 1, there may be In the event of leakage, the present invention obtains the amount of cleaning liquid 5 to be added based on the material amount and the preset model, obtains the pressure value at the bottom of the cleaning machine 1 in real time during the liquid addition process, calculates the corresponding actual liquid addition amount, and also obtains the pressure value at the bottom of the cleaning machine 1 in real time during the cleaning and draining processes. According to the change of the pressure value, it is possible to monitor in real time whether the cleaning liquid 5 inside the cleaning machine 1 has been added in place, whether there is leakage during the operation, and whether it is completely drained, thereby solving the problem of how to monitor the liquid level in the whole process of the rubber stopper cleaning machine 1 in the prior art, and at the same time, it solves the problem of how to monitor the possible leakage during the cleaning process of the rubber stopper cleaning machine 1.

[0031] In this embodiment, the height of the cleaning liquid 5 to be added in the preset model X is 20mm-100mm higher than the height of the material. The height of the cleaning liquid 5 in the cavity should be higher than the height of the material in the cavity to ensure that the material is submerged. Specifically, the height of the cleaning liquid 5 is 20mm-100mm higher than the height of the material. When the height is lower than 20mm, some rubber plugs may not be submerged when the rubber plug cleaning machine 1 rotates for cleaning, so the rubber plug cleaning effect is poor. When the height is higher than 100mm, the cleaning liquid 5 is wasted and the maximum cleaning amount of the cleaning machine 1 is reduced.

[0032] In this embodiment, the preset model is established based on the volume of the cleaning equipment, the type and quantity of the material, and the height of the cleaning liquid 5 is 20mm-100mm higher than the height of the material.

[0033] In this embodiment, the cleaning chamber of the cleaning machine 1 is in a sealed environment; the actual liquid level in the cleaning chamber is calculated based on the difference between the first pressure value P1 at the bottom of the cleaning machine 1 and the second pressure value P2 at the top of the cleaning machine 1. When the cleaning machine 1 is cleaning, the entire cleaning chamber is in a sealed environment, and pressurized to ensure the cleaning effect. Therefore, in order to avoid the impact of the rotation of the cleaning chamber under pressurized and sealed environments on the bottom monitoring pressure value, the pressure values ​​of the bottom and top of the cleaning machine 1 are collected. The second pressure value at the top is the gas pressure value above the liquid surface, and the first pressure value at the bottom is the sum of the pressure of the gas above the liquid surface and the pressure value of the cleaning liquid 5. Therefore, by calculating the difference between the first pressure value and the second pressure value, the monitoring of the liquid level in the cleaning chamber by the sealed environment and the pressurized environment can be effectively eliminated, thereby ensuring the accuracy of the monitoring.

[0034] In this embodiment, the actual liquid level H = (P1-P2) / ρg, which effectively avoids the influence of the pressure change of the gas above the liquid surface on the first pressure value, and ensures the accuracy of liquid level monitoring.

[0035] In this embodiment, when no water is added to the cavity, the cavity is filled with gas, and the pressure transmitter at the top and the pressure transmitter at the bottom are consistent. At this time, the liquid level is 0.

[0036] When water is added to the cavity, the top of the cavity is gas and the bottom is covered by water. The internal pressure is divided into two parts: the part above the water surface is the pressure generated by the gas; the part below the water surface is the sum of the pressure generated by the liquid and the gas pressure. The pressure generated by the liquid at this time is obtained by subtracting the top detection value from the bottom pressure sensor detection value. The liquid level height corresponding to this pressure is calculated according to p=ρgh.

[0037] In this embodiment, the cleaning machine 1 includes an outer cavity 8 and an inner cavity 7, wherein the inner cavity 7 is connected to the outer cavity 8 and the inner cavity 7 is rotatable. The rotation of the inner cavity 7 drives the material to be cleaned, and the cleaning effect is good.

[0038] In this embodiment, the cleaning machine 1 is provided with a first pressure transmitter 2 connected to the top of the outer cavity 8 and a second pressure transmitter 3 connected to the bottom of the outer cavity 8. The controller 4 on the cleaning machine 1 calculates the actual liquid level in the cleaning machine 1 according to the pressure difference between the first pressure transmitter 2 and the second pressure transmitter 3. The first pressure transmitter 2 is used to obtain the first pressure value P1, and the second pressure transmitter 3 is used to obtain the second pressure value P2. The first pressure transmitter 2 is arranged at the top of the fixed outer cavity 8, and is not affected by the rotation of the inner cavity 7 to monitor the pressure value at the top of the cleaning cavity in real time. The second pressure transmitter 3 is connected to the bottom of the outer cavity 8, and is also not affected by the rotation of the inner cavity 7 to ensure the accuracy of pressure monitoring.

[0039] In this embodiment, a liquid circulation mechanism 10 is provided on one side of the cleaning machine 1, and the liquid inlet end of the liquid circulation mechanism 10 is connected to the outer cavity 8 and the liquid outlet end is coaxial with the rotation axis of the inner cavity 7. The liquid circulation mechanism 10 is used to extract the liquid from the bottom of the cleaning cavity and return it to the cleaning cavity through the rotating axis to form a cycle, thereby improving the cleaning effect of the material; the rotation of the inner cavity 7 cooperates with the liquid circulation mechanism 10, so that the material is washed through the liquid outlet end of the liquid circulation mechanism 10 during the turning process in the cleaning cavity, so that the material can be fully washed.

[0040] In this embodiment, the liquid outlet of the liquid circulation mechanism 10 is connected to a cleaning pipe 9, which is placed between the inner cavity 7 and the outer cavity 8 and arranged close to the upper half of the cleaning cavity. During the material cleaning process, the lower half of the cleaning cavity is always below the liquid surface, which is convenient for cleaning, but the outer cavity 8 in the upper half of the cleaning cavity cannot be submerged in the liquid. In order to ensure the cleanliness of the entire cleaning cavity, the liquid outlet of the liquid circulation mechanism 10 is connected to a cleaning pipe 9 for cleaning the upper half of the outer cavity 8.

[0041] In this embodiment, the cleaning pipe 9 is provided with a liquid outlet for cleaning the upper half of the outer cavity 8 .

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A material cleaning control method, characterized in that: The steps include: Step A: The cleaning machine obtains the amount of material to be cleaned a1, and obtains the amount of cleaning liquid to be added b1 according to the material amount a1 and the preset model X; Step B: Add liquid to the cleaning machine. During the adding process, the pressure value at the bottom of the cleaning machine is obtained in real time, and the corresponding actual added liquid amount is calculated. When the actual added liquid amount is equal to the amount of cleaning liquid to be added b1, proceed to the next step; Step C: The cleaning machine cleans. During the cleaning process, the pressure value at the bottom of the cleaning machine is obtained in real time, and the corresponding real-time liquid volume is calculated. When the real-time liquid volume is lower than the cleaning liquid volume b1 to be added, the cleaning machine stops and alarms, otherwise proceed to the next step; Step D: The cleaning machine drains the liquid. During the draining process, the pressure value at the bottom of the cleaning machine is obtained in real time, and the corresponding real-time liquid volume is calculated. When the real-time liquid volume is zero, the cleaning machine completes material cleaning.

2. A material cleaning control method according to claim 1, characterized in that: The height of the cleaning liquid to be added in the preset model X is 20mm-100mm higher than the height of the material.

3. A material cleaning control method according to claim 1, characterized in that: The cleaning chamber of the cleaning machine is in a sealed environment; the actual liquid level in the cleaning chamber is calculated based on the difference between a first pressure value P1 at the bottom of the cleaning machine and a second pressure value P2 at the top of the cleaning machine.

4. A material cleaning control method according to claim 3, characterized in that: The actual liquid level H = (P1-P2) / ρg.

5. A material cleaning control method according to claim 1, characterized in that: The cleaning machine comprises an outer cavity and an inner cavity, wherein the inner cavity is communicated with the outer cavity, and the inner cavity is rotatable.

6. A material cleaning control method according to claim 5, characterized in that: The cleaning machine is provided with a first pressure transmitter connected to the top of the outer cavity and a second pressure transmitter connected to the bottom of the outer cavity. The controller on the cleaning machine calculates the actual liquid level in the cleaning machine according to the pressure difference between the first pressure transmitter and the second pressure transmitter.

7. A material cleaning control method according to claim 5, characterized in that: A liquid circulation mechanism is provided on one side of the cleaning machine, wherein a liquid inlet end of the liquid circulation mechanism is communicated with the outer cavity and a liquid outlet end of the liquid circulation mechanism is coaxial with the rotation axis of the inner cavity.

8. A material cleaning control method according to claim 7, characterized in that: The liquid outlet end of the liquid circulation mechanism is connected with a cleaning pipeline, and the cleaning pipeline is placed between the inner cavity and the outer cavity and arranged close to the upper half of the cleaning cavity.

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