A grinding process cooling water supply system

Abstract

The present invention discloses a grinding processing cooling water supply system, which relates to the technical field of liquid crystal glass substrate processing and manufacturing. It includes a human-machine interaction device, a supply device, a mixing device and a grinding device; the mixing device mixes the cooling water raw materials to obtain target cooling water with a concentration in the first preset concentration range, and real-time collects the concentration information of the current cooling water and sends it to the human-machine interaction device; the grinding device real-time collects the working parameters of the current grinding operation and sends them to the human-machine interaction device; the human-machine interaction device controls the supply device to input the cooling water raw materials into the mixing device or controls the supply device to extract the target cooling water from the mixing device according to the concentration information and the working parameters. The real-time control of the concentration of the cooling water is realized, and the supply efficiency and applicability of the cooling water are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of processing and manufacturing of liquid crystal glass substrates, and particularly relates to a grinding processing cooling water supply system. Background Art

[0002] In the production process of TFT-LCD (liquid crystal display) glass substrates, edge grinding is an important step. Since the edges and corners of the cut glass have burrs and are prone to cracking during transmission, grinding is to process the cut glass and grind the edges into a certain arc so that the stress on the glass is dispersed during transmission and fragment generation is prevented. An abrasive wheel is used for edge grinding. When the abrasive wheel processes the glass, a huge amount of heat will be generated near the processing point. If it cannot be cooled in time, it will cause burns and cracks on the glass edge, resulting in fragmentation. Ordinary cooling water cannot achieve the cooling effect, so a coolant needs to be added to accelerate the cooling speed, but the coolant needs to be diluted with pure water before use.

[0003] In the prior art, cooling water with a preset concentration is usually prepared in advance and stored for use during grinding. The concentration of the cooling water cannot be controlled in real time, resulting in low cooling water supply efficiency and poor applicability. Summary of the Invention

[0004] The object of the present invention is to solve the problems in the above background art and propose a grinding processing cooling water supply system.

[0005] The object of the present invention can be achieved by the following technical solutions:

[0006] An embodiment of the present invention provides a grinding processing cooling water supply system, including a human-computer interaction device, a supply device, a mixing device, and a grinding device; wherein:

[0007] The mixing device is used to mix cooling water raw materials to obtain target cooling water with a concentration in a first preset concentration range, and collect the concentration information of the current cooling water in real time and send it to the human-computer interaction device;

[0008] The grinding device is used to collect the working parameters of the current grinding operation in real time and send them to the human-computer interaction device;

[0009] The human-computer interaction device is used to control the supply device to input cooling water raw materials into the mixing device or control the supply device to extract target cooling water from the mixing device according to the concentration information and the working parameters.

[0010] Optionally, the cooling water raw materials include a cooling stock solution, pure water, and a recycled liquid; the system further includes a recycling device; the supply device includes a stock solution tank, a pure water tank, and a recycled liquid tank;

[0011] The recovery device is used to recover the cooling water used by the grinding device to obtain the recovered liquid.

[0012] Optionally, the working parameters include the grinding trajectory, grinding speed, grinding time, and grinding pressure.

[0013] Optionally, the human-machine interaction device includes a parameter adjustment module, a concentration adjustment module, and an instruction module;

[0014] The parameter adjustment module is used to adjust the first preset concentration range according to the working parameters to obtain the second preset concentration range;

[0015] The concentration adjustment module is used to determine the concentration distribution function of the cooling water in the mixing device according to the concentration information, and determine the concentration range of the cooling water within a preset range of the output port of the supply device as the first concentration range;

[0016] The instruction module is used to send a control instruction to the supply device to control the supply device to extract the target cooling water from the mixing device if the first concentration range is included in the second preset concentration range; if the first concentration range is not included in the second preset concentration range, send a control instruction to the supply device to control the supply device to input the cooling water raw material into the mixing device.

[0017] Optionally, the parameter adjustment module is specifically used to calculate the second preset concentration range:

[0018]

[0019] where M is the upper limit value or the lower limit value of the second preset concentration range, V is the grinding speed, P is the grinding pressure, T is the grinding time, L is the length of the grinding trajectory, α and β are preset parameters, and M 0 is the upper limit value or the lower limit value of the first preset concentration range.

[0020] Optionally, the mixing device includes a plurality of concentration sensors; the concentration information includes the concentration values collected by each concentration sensor and the distance value of the concentration sensor relative to the input port of the supply device;

[0021] The concentration adjustment module is specifically used to perform linear fitting on the concentration information with the distance value as the independent variable and the concentration value as the dependent variable to obtain the concentration distribution function.

[0022] Optionally, the instruction module is specifically used for:

[0023] If the first concentration range is not included in the second preset concentration range and the upper limit of the first concentration range is greater than the upper limit of the second preset concentration range, a control instruction is sent to the supply device to control the supply device to input pure water and / or recycled liquid into the mixing device;

[0024] If the first concentration range is not included in the second preset concentration range and the lower limit of the first concentration range is less than the lower limit of the second preset concentration range, a control instruction is sent to the supply device to control the supply device to input cooling stock solution into the mixing device.

[0025] Optionally, the human-machine interaction device is further configured to set a first preset concentration range and the extraction frequencies of the cooling water raw material and the target cooling water.

[0026] Advantages of the present invention:

[0027] An embodiment of the present invention provides a grinding process cooling water supply system, including a human-machine interaction device, a supply device, a mixing device, and a grinding device; wherein: the mixing device is configured to mix the cooling water raw material to obtain target cooling water with a concentration in a first preset concentration range, and collect the concentration information of the current cooling water in real time and send it to the human-machine interaction device; the grinding device is configured to collect the working parameters of the current grinding operation in real time and send them to the human-machine interaction device; the human-machine interaction device is configured to control the supply device to input the cooling water raw material into the mixing device or control the supply device to extract the target cooling water from the mixing device according to the concentration information and the working parameters. This system can collect the concentration information of the cooling water in the mixing device and the working parameters of the grinding device, control the input of the cooling water raw material and the output of the target cooling water according to the concentration information and the working parameters, and then control the concentration of the cooling water, achieving real-time control of the concentration of the cooling water, and improving the supply efficiency and applicability of the cooling water. Description of the Drawings

[0028] The present invention will be further described below with reference to the accompanying drawings.

[0029] Figure 1 It is a system block diagram of a grinding process cooling water supply system provided by an embodiment of the present invention. Detailed Embodiments

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] An embodiment of the present invention provides a grinding processing cooling water supply system. Refer to Figure 1 , Figure 1 which is a system block diagram of a grinding processing cooling water supply system provided by an embodiment of the present invention. The system includes a human-machine interaction device, a supply device, a mixing device, and a grinding device; wherein:

[0032] The mixing device is used to mix the cooling water raw materials to obtain target cooling water with a concentration in a first preset concentration range, and collect the concentration information of the current cooling water in real time and send it to the human-machine interaction device;

[0033] The grinding device is used to collect the working parameters of the current grinding operation in real time and send them to the human-machine interaction device;

[0034] The human-machine interaction device is used to control the supply device to input the cooling water raw materials into the mixing device or control the supply device to extract the target cooling water from the mixing device according to the concentration information and the working parameters.

[0035] Based on the grinding processing cooling water supply system provided by the embodiment of the present invention, the concentration information of the cooling water in the mixing device and the working parameters of the grinding device can be collected, and the input of the cooling water raw materials and the output of the target cooling water can be controlled according to the concentration information and the working parameters, so as to control the concentration of the cooling water, realize the real-time control of the concentration of the cooling water, and improve the efficiency and applicability of the cooling water supply.

[0036] In one implementation, the mixing device may include a mixing water tank, a concentration meter, and a stirring rod. The supply device may be a water pump for extracting the cooling water raw materials in the storage tank and the target cooling water in the mixing water tank.

[0037] In one embodiment, the cooling water raw materials include a cooling stock solution, pure water, and a recycled liquid; the system further includes a recycling device; the supply device includes a stock solution tank, a pure water tank, and a recycled liquid tank;

[0038] The recycling device is used to recycle the cooling water used by the grinding device to obtain the recycled liquid.

[0039] In one implementation, the concentrations of the cooling stock solution, the target cooling water, the recycled liquid, and the pure water decrease in sequence.

[0040] In one embodiment, the working parameters include a grinding trajectory, a grinding speed, a grinding time, and a grinding pressure.

[0041] In one embodiment, the human-machine interaction device includes a parameter adjustment module, a concentration adjustment module, and an instruction module;

[0042] The parameter adjustment module is used to adjust the first preset concentration range according to the working parameters to obtain a second preset concentration range;

[0043] A concentration adjustment module, which is used to determine the concentration distribution function of the cooling water in the mixing device according to the concentration information, and determine the cooling water concentration range within a preset range of the output port of the supply device as the first concentration range;

[0044] An instruction module, which is used to send a control instruction to the supply device to control the supply device to extract target cooling water from the mixing device if the first concentration range is included in the second preset concentration range; if the first concentration range is not included in the second preset concentration range, send a control instruction to the supply device to control the supply device to input cooling water raw materials into the mixing device.

[0045] In one implementation, the working parameters can reflect the temperature of the current grinding operation. The higher the temperature, the greater the concentration of the target cooling water required. Therefore, the concentration of the target cooling water can be adjusted according to the working parameters.

[0046] In one implementation, the concentrations in different regions of the mixing water tank of the mixing device may be different. The closer to the input port of the cooling water raw material of the supply device, the greater or smaller the concentration. Determining the cooling water concentration range within a preset range of the output port of the supply device is to ensure that the concentration of the target cooling water output by the supply device meets the usage requirements.

[0047] In one embodiment, the parameter adjustment module is specifically used to calculate the second preset concentration range:

[0048]

[0049] where M is the upper limit or lower limit value of the second preset concentration range, V is the grinding speed, P is the grinding pressure, T is the grinding time, L is the length of the grinding trajectory, α and β are preset parameters, and M 0 is the upper limit or lower limit value of the first preset concentration range.

[0050] In one implementation, when M is the upper limit value of the second preset concentration range, then M 0 is the upper limit value of the first preset concentration range, and when M is the lower limit value of the second preset concentration range, then M 0 is the lower limit value of the first preset concentration range.

[0051] In one implementation, α is greater than 0 and β is greater than 1. β can be set by technicians according to actual situations. α can be set according to the historical working parameters of the grinding device. For example, calculate the average grinding trajectory distance, average grinding speed, average grinding time, and average grinding pressure according to the historical working parameters, and calculate α according to formula (2):

[0052]

[0053] where V 0 is the average grinding speed, P0 Average grinding pressure, T 0 is the average grinding time, L 0 is the average grinding track distance.

[0054] In one embodiment, the mixing device includes a plurality of concentration sensors; the concentration information includes the concentration values collected by each concentration sensor and the distance value of the concentration sensor relative to the input port of the supply device;

[0055] The concentration adjustment module is specifically configured to perform linear fitting on the concentration information with the distance value as the independent variable and the concentration value as the dependent variable to obtain a concentration distribution function.

[0056] In one embodiment, the instruction module is specifically configured to:

[0057] If the first concentration range is not included in the second preset concentration range and the upper limit of the first concentration range is greater than the upper limit of the second preset concentration range, a control instruction is sent to the supply device to control the supply device to input pure water and / or recycled liquid into the mixing device;

[0058] If the first concentration range is not included in the second preset concentration range and the lower limit of the first concentration range is less than the lower limit of the second preset concentration range, a control instruction is sent to the supply device to control the supply device to input the cooling stock solution into the mixing device.

[0059] In one implementation, in practical applications, the span of the second preset concentration range is usually greater than the span of the first concentration range. Therefore, in this embodiment of the present invention, only the upper and lower limits are compared separately here, and it is not necessary to consider the case where the upper limit of the first concentration range is greater than the upper limit of the second preset concentration range and the lower limit of the first concentration range is less than the lower limit of the second preset concentration range.

[0060] In one embodiment, the human-machine interaction device is further configured to set the first preset concentration range and the extraction frequencies of the cooling water raw material and the target cooling water.

[0061] The above has described in detail an embodiment of the present invention, but the content described is only a preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the present invention application shall still fall within the scope covered by the patent of the present invention.

Claims

1. A grinding process cooling water supply system, characterized in that, it includes a human - machine interaction device, a supply device, a mixing device and a grinding device; wherein: The mixing device is used to mix the cooling water raw materials to obtain target cooling water with a concentration in the first preset concentration range, and collect the concentration information of the current cooling water in real time and send it to the human - machine interaction device; The grinding device is used to collect the working parameters of the current grinding operation in real time and send them to the human - machine interaction device; The human - machine interaction device is used to control the supply device to input cooling water raw materials into the mixing device or control the supply device to extract target cooling water from the mixing device according to the concentration information and the working parameters; The cooling water raw materials include cooling stock solution, pure water and recycled liquid; the system also includes a recycling device; the supply device includes a stock solution tank, a pure water tank and a recycled liquid tank; The recycling device is used to recycle the cooling water used by the grinding device to obtain the recycled liquid; The working parameters include grinding trajectory, grinding speed, grinding time and grinding pressure; The human - machine interaction device includes a parameter adjustment module, a concentration adjustment module and an instruction module; The parameter adjustment module is used to adjust the first preset concentration range according to the working parameters to obtain a second preset concentration range; The concentration adjustment module is used to determine the concentration distribution function of the cooling water in the mixing device according to the concentration information, and determine the cooling water concentration range within a preset range of the output port of the supply device as the first concentration range; The instruction module is used to send a control instruction to the supply device to control the supply device to extract target cooling water from the mixing device if the first concentration range is included in the second preset concentration range; if the first concentration range is not included in the second preset concentration range, send a control instruction to the supply device to control the supply device to input cooling water raw materials into the mixing device; The parameter adjustment module is specifically used to calculate the second preset concentration range: where M is the upper or lower limit value of the second preset concentration range, V is the grinding speed, P is the grinding pressure, T is the grinding time, L is the length of the grinding trajectory, α and β are preset parameters, and M 0 is the upper or lower limit value of the first preset concentration range.

2. The grinding process cooling water supply system according to claim 1, characterized in that, The mixing device includes a plurality of concentration sensors; the concentration information includes the concentration values collected by each concentration sensor and the distance value of the concentration sensor relative to the input port of the supply device; The concentration adjustment module is specifically used to perform linear fitting on the concentration information with the distance value as the independent variable and the concentration value as the dependent variable to obtain the concentration distribution function.

3. The grinding process cooling water supply system according to claim 1, characterized in that, The instruction module is specifically used for: If the first concentration range is not included in the second preset concentration range and the upper limit of the first concentration range is greater than the upper limit of the second preset concentration range, send a control instruction to the supply device to control the supply device to input pure water and / or recycled liquid into the mixing device; If the first concentration range is not included in the second preset concentration range, and the lower limit of the first concentration range is less than the lower limit of the second preset concentration range, a control instruction is sent to the supply device to control the supply device to input the cooling stock solution into the mixing device.

4. A grinding processing cooling water supply system according to claim 1, characterized in that the human-machine interaction device is further configured to set a first preset concentration range and set the extraction frequencies of the cooling water raw material and the target cooling water.

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