Cooling control methods, devices, electronic equipment and storage media for plastic strips

Abstract

This application discloses a cooling control method, apparatus, electronic device, and storage medium for plastic strips, relating to the field of plastic pellet production technology. Multiple temperature values ​​are obtained from multiple measurement locations in a water-cooling tank using a temperature measuring component. Then, a target temperature value exceeding a preset temperature range is determined from these multiple temperature values. At least one target temperature value is selected. A target position is determined based on the measurement location corresponding to the target temperature value. Based on the target position, a target unit is determined, and only the target unit is adjusted. This avoids global adjustments to all cooling units, enabling rapid adjustment response and improving adjustment timeliness. It achieves the goal of determining local locations where the temperature exceeds the preset temperature range by measuring the temperature of the water-cooling tank, and then adjusting the compressor power of some cooling units based on the target position to ensure cooling effect, thereby preventing the plastic pellets obtained in subsequent pelletizing operations from sticking together.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plastic particle production, and in particular to a plastic strip cooling control method and device, electronic equipment and a storage medium. BACKGROUND

[0002] In related technologies, in the production process of plastic particles, the raw materials need to be heated and melted and extruded by an extruder to form a plastic strip, and then the plastic strip is cut into particles. After the plastic strip is extruded from the extruder, it is in a high-temperature molten state and needs to be rapidly cooled and solidified to make it set and have a certain strength, so as to facilitate subsequent cutting operation. In related technologies, the plastic strip is only immersed in water, and the cooling effect is poor, resulting in plastic particles obtained by subsequent cutting operation being stuck. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application proposes a plastic strip cooling control method and device, electronic equipment and a storage medium, which can dynamically adjust the compressor power of the cooling unit to ensure the cooling effect, thereby avoiding the sticking of plastic particles obtained by subsequent cutting operation.

[0004] The plastic strip cooling control method according to the first aspect of the present application is applied to a cooling device, which includes a water cooling tank, a temperature measuring assembly and a plurality of cooling units. The cooling pipes of the plurality of cooling units are arranged in the interior of the water cooling tank along the length direction of the water cooling tank, and are used for heat exchange with the water in the water cooling tank. The cooling tank is used for soaking the plastic strip.

[0005] The method comprises:

[0006] Periodically acquiring measurement temperature values of a plurality of measurement positions in the water cooling tank by the temperature measuring assembly;

[0007] Determining at least one target temperature value exceeding a preset temperature range from the plurality of measurement temperature values;

[0008] Determining a target position based on the measurement position corresponding to the target temperature value;

[0009] Calculating the vertical distance between the target position and each cooling pipe, and sorting the vertical distances in ascending order. The vertical distance ranked in the front of the preset position is taken as the target vertical distance, and the cooling unit corresponding to the target vertical distance is taken as the target unit;

[0010] Adjusting the compressor power of each target unit based on the target vertical distance and the target temperature value.

[0011] The cooling control method for plastic strips according to embodiments of this application has at least the following beneficial effects: The cooling control method periodically acquires multiple measurement positions of the water-cooled tank through a temperature measuring component to obtain multiple measured temperature values. Then, it determines a target temperature value that exceeds a preset temperature range from the multiple measured temperature values. The number of target temperature values ​​is at least one. Based on the measurement position corresponding to the target temperature value, a target position is determined. The vertical distance between the target position and each cooling pipe is calculated, and the vertical distances are sorted in ascending order. The vertical distance with the highest preset ranking is taken as the target vertical distance. The cooling unit corresponding to the target vertical distance is taken as the target unit. The target unit is the cooling unit with a high temperature influence on the target position. The target unit is the cooling unit that needs to be adjusted. Only the target unit is adjusted, thus avoiding global adjustment of all cooling units, thereby enabling rapid adjustment response and improving adjustment timeliness. The compressor power of the target unit is adjusted based on the target vertical distance and the target temperature value, thereby cooling the water in the water-cooled tank and rapidly reducing the temperature at the target position. Thus, this application achieves dynamic adjustment of the compressor power of the cooling unit by measuring the temperature of the water cooling tank to determine the local location where the temperature exceeds the preset temperature range, i.e., the target location, and then adjusting the compressor power of part of the cooling unit based on the target location, so as to ensure the cooling effect and thus avoid the adhesion of plastic particles obtained in the subsequent pelletizing operation.

[0012] According to some embodiments of the first aspect of this application, determining the target location based on the measurement location corresponding to the target temperature value includes:

[0013] When the number of target temperature values ​​is 1, the measurement position corresponding to the target temperature value is taken as the target position;

[0014] If the number of target temperature values ​​is greater than or equal to 2, calculate the excess value of each target temperature value that exceeds the preset temperature range;

[0015] Calculate a first sum of all the excess values, and use the ratio between the excess value and the first sum as a first weight value;

[0016] The target location is determined based on the measurement location corresponding to each target temperature value and the corresponding first weight value.

[0017] According to some embodiments of the first aspect of this application, determining the target location based on the measurement location corresponding to each target temperature value and the corresponding first weight value includes:

[0018] Based on the coordinates of the measurement locations corresponding to each target temperature value and the location determination formula, the target location is obtained; the location determination formula is:

[0019]

[0020]

[0021] Where N is the number of target temperature values, X is the horizontal coordinate of the target location, Y is the vertical coordinate of the target location, Z is the vertical coordinate of the target location, and k i x is the first weight value corresponding to the i-th target temperature value; i Let y be the x-coordinate of the measurement position corresponding to the i-th target temperature value. i Let z be the ordinate of the measurement position corresponding to the i-th target temperature value. i Let be the vertical coordinate of the measurement position corresponding to the i-th target temperature value.

[0022] According to some embodiments of the first aspect of this application, adjusting the compressor power of each target unit based on the target vertical distance and the target temperature value includes:

[0023] Calculate a second sum of the vertical distances of each of the targets, and use the ratio between the vertical distance of the targets and the second sum as a second weight value of the vertical distance of the targets;

[0024] A weighted average of the multiple target temperature values ​​and their corresponding second weight values ​​is calculated to obtain the average temperature value.

[0025] The compressor power of the target unit is adjusted based on the average temperature value and the second weight value.

[0026] According to some embodiments of the first aspect of this application, adjusting the compressor power of the target unit based on the average temperature value and the second weight value includes:

[0027] The target power is calculated based on the power adjustment formula, and the compressor power of the target unit is adjusted to the target power; the power adjustment formula is:

[0028] P j (t)=λ*P j (t-1)+(A t -A0)*W j *p;

[0029] Among them, P j (t) represents the target power of the j-th target unit, P j (t-1) The compressor power of the j-th target unit in the previous cycle, A t The average temperature value is A0, where A0 is the preset ideal average temperature value; Wj The second weight value represents the vertical distance to the target corresponding to the j-th target unit; p and λ are preset coefficients.

[0030] According to some embodiments of the first aspect of this application, the cooling device further includes a stirring assembly for stirring the water contained in the water-cooling tank;

[0031] After periodically acquiring the measured temperature values ​​at multiple measurement locations in the water-cooled tank through the temperature measuring component, the method further includes:

[0032] Calculate the absolute value of the difference between each of the measured temperature values, and calculate the average value of each absolute value to obtain the deviation from the average value;

[0033] If the deviation from the average value is detected to be greater than a preset threshold, the rotation speed of the stirring component is adjusted based on the deviation from the average value.

[0034] According to some embodiments of the first aspect of this application, adjusting the rotational speed of the stirring assembly based on the deviation from the average value includes:

[0035] The target rotational speed is calculated based on the rotational speed calculation formula, and the rotational speed of the stirring component is adjusted to the target rotational speed; wherein, the rotational speed calculation formula is:

[0036] V t =V t-1 (1+d*L);

[0037] Wherein, Vt is the target rotational speed, Vt-1 is the rotational speed of the stirring component in the previous cycle, d is the deviation from the average value, and L is a preset coefficient.

[0038] A second aspect of this application provides a cooling control device for a plastic strip, applied to a cooling equipment. The cooling equipment includes a water-cooled tank, a temperature measuring component, and multiple cooling units. The cooling pipes of the multiple cooling units are spaced apart along the length of the water-cooled tank inside the water-cooled tank. The cooling pipes are used for heat exchange with the water in the water-cooled tank. The cooling tank is used to soak the plastic strip.

[0039] The device includes:

[0040] The acquisition module is used to periodically acquire the measured temperature values ​​at multiple measurement locations in the water-cooled tank through the temperature measuring component;

[0041] The first determining module is used to determine at least one target temperature value that exceeds a preset temperature range from multiple measured temperature values;

[0042] The second determining module is used to determine the target position based on the measurement position corresponding to the target temperature value;

[0043] The calculation module is used to calculate the vertical distance between the target location and each of the cooling pipes, sort the vertical distances in ascending order, take the vertical distance with the highest preset ranking as the target vertical distance, and take the cooling unit corresponding to the target vertical distance as the target unit.

[0044] An adjustment module is used to adjust the compressor power of each target unit based on the target vertical distance and the target temperature value.

[0045] A third aspect of this application provides an electronic device, which includes a memory and a processor. The memory stores a computer program, and the processor executes the computer program to implement the cooling control method for the plastic strip described in any one of the first aspects of the embodiment.

[0046] A fourth aspect of this application provides a computer-readable storage medium storing a computer program, characterized in that, when executed by a processor, the computer program implements the cooling control method for the plastic strip described in any one of the first aspects of the embodiment.

[0047] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0048] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0049] Figure 1 Figure 1 This is a simplified structural diagram of the cooling device according to an embodiment of this application;

[0050] Figure 2 This is a schematic flowchart illustrating the steps of a cooling control method for a plastic strip according to an embodiment of this application.

[0051] Figure 3 for Figure 2 A detailed flowchart of step S230;

[0052] Figure 4 for Figure 2 A detailed flowchart of step S250;

[0053] Figure 5 This is a flowchart of a step following step S210 in an embodiment of this application;

[0054] Figure 6This is a block diagram of a cooling control device for a plastic strip according to an embodiment of this application;

[0055] Figure 7 This is a schematic diagram of the hardware structure of an electronic device according to an embodiment of this application. Detailed Implementation

[0056] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0057] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0058] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0059] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0060] In the description of this application, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0061] In the production of plastic pellets, the raw material needs to be heated, melted, and extruded in an extruder to form plastic strips, which are then granulated. After extrusion, the plastic strips are in a high-temperature molten state and need to be rapidly cooled and solidified to set their shape and gain sufficient strength for subsequent pelletizing. Current technologies cool the plastic strips by immersing them in a water-cooling tank and driving them along the length of the tank. However, these technologies typically use only a single high-powered cooling unit to cool the water in the tank. Because the tank is long and large, the water temperature near the cooling unit is lower, while the water temperature further away is higher. This uneven temperature distribution within the tank can easily lead to localized temperatures exceeding the preset range, resulting in poor cooling of the plastic strips and consequently, poor pelletizing performance.

[0062] Based on this, the present application provides a cooling control method, device, electronic device and storage medium for plastic strips. It can determine the local position where the temperature exceeds the preset temperature range, i.e., the target position, by measuring the temperature of the water cooling tank, and then adjust the compressor power of part of the cooling unit based on the target position. This realizes dynamic adjustment of the compressor power of the cooling unit to ensure the cooling effect, thereby avoiding the adhesion of plastic particles obtained in the subsequent pelletizing operation and reducing the risk of poor pelletizing.

[0063] First, the cooling device used to implement the cooling control method for the plastic strip in the embodiments of this application will be described. (Refer to...) Figure 1 , Figure 1 This is a simplified structural diagram of the cooling device according to an embodiment of this application. The cooling device includes a water-cooled tank, a temperature measuring component, and multiple cooling units. The cooling pipes of the multiple cooling units are spaced apart inside the water-cooled tank along its length. The cooling pipes are used for heat exchange with the water in the water-cooled tank. The cooling tank is used to soak plastic strips. After being output from the extruder, the plastic strips are soaked in the water-cooled tank and move along the length of the water-cooled tank to the pelletizing mechanism.

[0064] For example, the cooling unit includes a compressor, a condenser, and cooling pipes. The compressor compresses a low-temperature, low-pressure gaseous refrigerant into a high-temperature, high-pressure gas. The condenser condenses the high-temperature, high-pressure refrigerant gas into a low-temperature, high-pressure liquid coolant. The low-temperature, high-pressure liquid coolant is transported to the cooling pipes, where it turns into a gas and is then transported back to the compressor. The coolant in the cooling pipes exchanges heat with the water in the water-cooled tank, thereby lowering the temperature of the water in the tank. It should be noted that this application does not specifically limit the specific structure of the cooling unit. Those skilled in the art can design the specific structure of the cooling unit according to actual conditions. For example, expansion valves can be installed between the connections of the various components of the cooling unit. Also, if the heat absorbed by the coolant after passing through the cooling pipes is insufficient to turn the coolant into a gas, an evaporator can be added to turn the coolant into a gas. The compressor power can characterize the cooling effect of the cooling unit; the higher the compressor efficiency, the better the cooling effect of the cooling unit.

[0065] It should be noted that multiple temperature measuring components can be provided, and each temperature measuring component is used to measure the temperature value at different locations in the water cooling tank. This application does not make specific limitations on the measurement location. For example, the water cooling tank can be divided into multiple regions along the length of the water cooling tank, and the measurement location can be the bottom, middle and top of each region. Or, for example, the central axis of the region can be determined, and multiple measurement locations can be set around the central axis of each region.

[0066] It should be noted that the temperature measuring component is an infrared thermal imager, which can be installed above the water cooling tank to achieve non-contact, real-time, and high-precision monitoring of the temperature at multiple locations in the water cooling tank.

[0067] In some embodiments, refer to Figure 1 The cooling equipment also includes a stirring assembly for agitating the water in the water-cooling tank. Multiple stirring assemblies can be provided, spaced apart on the sidewalls of the water-cooling tank and located inside the tank. Each stirring assembly may include stirring blades and a stirring motor. The stirring motor drives the stirring blades to rotate, thereby agitating the water in the water-cooling tank to ensure uniform water temperature.

[0068] based on Figure 1The present application proposes a cooling control method for a plastic strip according to a first aspect embodiment. This cooling control method for a plastic strip can be applied to a terminal or a server. In some embodiments, the terminal can be a smartphone, tablet, laptop, desktop computer, etc.; the server can be configured as an independent physical server, a server cluster or distributed system composed of multiple physical servers, or a cloud server providing basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, CDN, and big data and artificial intelligence platforms; the software can be an application that implements the cooling control method for the plastic strip, etc., but is not limited to the above forms.

[0069] This application can be used in a wide variety of general-purpose or special-purpose computer system environments or configurations. Examples include: personal computers, server computers, handheld or portable devices, tablet devices, multiprocessor systems, microprocessor-based systems, set-top boxes, programmable consumer electronics, network PCs, minicomputers, mainframe computers, and distributed computing environments including any of the above systems or devices. This application can be described in the general context of computer-executable instructions executed by a computer, such as program modules. Generally, program modules include routines, programs, objects, components, data structures, etc., that perform specific tasks or implement specific abstract data types. This application can also be practiced in distributed computing environments where tasks are performed by remote processing devices connected via a communication network. In distributed computing environments, program modules can reside in local and remote computer storage media, including storage devices.

[0070] Reference Figure 2 , Figure 2 This is a schematic flowchart illustrating the steps of a cooling control method for a plastic strip according to an embodiment of this application. The cooling control method for a plastic strip according to an embodiment of this application may include, but is not limited to, steps S210 to S250.

[0071] Step S210: Periodically obtain the measured temperature values ​​at multiple measurement locations in the water-cooled tank through the temperature measuring component;

[0072] It should be noted that this application does not specify the periodic interval for obtaining the measured temperature value, and those skilled in the art can set the periodic interval according to actual needs.

[0073] Step S220: Determine at least one target temperature value that exceeds the preset temperature range from multiple measured temperature values;

[0074] For example, if the preset temperature range is [A, B], then the measured temperature value less than A or greater than B will be used as the target temperature value. For instance, if the preset temperature range is [2, 5], then the measured temperature value less than 2 degrees Celsius and greater than 5 degrees Celsius will be used as the target temperature value. This application does not specifically limit the preset temperature range; those skilled in the art can set the preset temperature range according to actual conditions.

[0075] It is worth noting that if each measured temperature value is detected to be within the preset temperature range, no further steps are required, and the compressor power of the cooling unit does not need to be adjusted.

[0076] Step S230: Determine the target location based on the measurement location corresponding to the target temperature value;

[0077] Step S240: Calculate the vertical distance between the target location and each cooling pipe, sort the vertical distances in ascending order, take the vertical distance with the highest preset ranking as the target vertical distance, and take the cooling unit corresponding to the target vertical distance as the target unit.

[0078] It's important to note that vertical distance represents the influence of the cooling unit on the temperature at the target location. The smaller the vertical distance, the greater the influence of the corresponding cooling unit on the target location's temperature. Sorting the vertical distances in ascending order is equivalent to sorting the cooling units according to their influence on the target location's temperature from largest to smallest. The top-ranked vertical distances are designated as the target vertical distances, and the corresponding cooling units are designated as the target units. This effectively filters out the cooling units with the highest pre-defined influence on the target location's temperature. Thus, in subsequent steps, only the compressor power of the target unit needs adjustment, without needing to adjust other cooling units. This avoids blindly adjusting all cooling units globally and prevents ineffective work from cooling units located far away. Furthermore, targeted adjustment of the target unit ensures rapid response and improves adjustment timeliness.

[0079] It should be noted that this application does not impose specific limitations on the preset ranking, and those skilled in the art can set the preset ranking according to the actual situation. For example, if the preset ranking is 5, then after sorting each vertical distance in ascending order, the top 5 vertical distances are taken as the target vertical distances. Based on the target vertical distances, the target units corresponding to the target vertical distances are obtained, and the number of target units is 5.

[0080] Step S250: Adjust the compressor power of each target unit based on the target vertical distance and target temperature value.

[0081] The cooling control method for the plastic strip in this embodiment of the application, through steps S210 to S250, periodically acquires multiple measurement positions of the water-cooled tank through a temperature measuring component, obtaining multiple measured temperature values. Then, it determines a target temperature value that exceeds a preset temperature range from the multiple measured temperature values. The number of target temperature values ​​is at least one. Based on the measurement position corresponding to the target temperature value, a target position is determined. The vertical distance between the target position and each cooling pipe is calculated, and the vertical distances are sorted in ascending order. The vertical distance with the highest preset ranking is taken as the target vertical distance. The cooling unit corresponding to the target vertical distance is taken as the target unit. The target unit is the cooling unit with a high temperature influence on the target position. The target unit is the cooling unit that needs to be adjusted. Only the target unit is adjusted, thus avoiding global adjustment of all cooling units, thereby enabling rapid adjustment response and improving adjustment timeliness. The compressor power of the target unit is adjusted based on the target vertical distance and the target temperature value, thereby cooling the water in the water-cooled tank and rapidly reducing the temperature at the target position. Thus, this application achieves dynamic adjustment of the compressor power of the cooling units by measuring the temperature of the water-cooling tank to determine the local location where the temperature exceeds the preset temperature range, i.e., the target location, and then adjusting the compressor power of some cooling units based on the target location. This ensures the cooling effect and prevents the plastic granules from sticking together in the subsequent pelletizing process. Furthermore, through the combined action of multiple target units, the water temperature in the water-cooling tank can be rapidly cooled to the preset temperature range.

[0082] In some embodiments, refer to Figure 3 , Figure 3 for Figure 2 A schematic diagram of a specific process for step S230. Step S230 may include, but is not limited to, steps S310 to S340.

[0083] Step S310: When the number of target temperature values ​​is 1, the measurement position corresponding to the target temperature value is taken as the target position;

[0084] Step S320: If the number of target temperature values ​​is greater than or equal to 2, calculate the excess value of each target temperature value that exceeds the preset temperature range.

[0085] Step S330: Calculate the first sum of each excess value, and use the ratio between the excess value and the first sum as the first weight value;

[0086] Step S340: Determine the target location based on the measurement location corresponding to each target temperature value and the corresponding first weight value.

[0087] It is worth noting that, through steps S310 to S330 above, when the number of target temperature values ​​is 1, the measurement location corresponding to the target temperature value is directly used as the target location. When the number of target temperature values ​​is greater than or equal to 2, the target location needs to be determined based on the measurement locations corresponding to multiple target temperature values. Specifically, the excess value of each target temperature value beyond the preset temperature range is calculated, the first sum of each excess value is calculated, and the ratio between the excess value and the first sum is used as the first weight value. Thus, the larger the excess value, the higher its corresponding first weight value, and the higher the first weight value, the greater its influence on the target location. In subsequent processes, the target location is obtained by weighted summation of the measurement locations corresponding to each target temperature value and the corresponding first weight value. The target location obtained in this way can eliminate the false center offset problem. When the excess value corresponding to a certain measurement location is significantly greater than that of other measurement locations, the target location automatically approaches the measurement location with the strong anomaly, avoiding the control direction deviation caused by the traditional geometric center method. This is beneficial for subsequent determination of the target unit based on the target location.

[0088] Specifically, step S340 may include the following steps:

[0089] Based on the coordinates of the measurement locations corresponding to each target temperature value and the location determination formula, the target location is obtained. Before calculating the target location, a spatial coordinate system is first established based on the water-cooled bath to obtain the coordinates of the measurement locations corresponding to each target temperature value, and then the location is calculated using the location determination formula. The location determination formula is:

[0090]

[0091]

[0092] Where N is the number of target temperature values, X is the x-coordinate of the target location, Y is the y-coordinate of the target location, Z is the y-coordinate of the target location, and k is the k-coordinate of the target location. i x is the first weight value corresponding to the i-th target temperature value; i Let y be the x-coordinate of the measurement location corresponding to the i-th target temperature value. i Let z be the ordinate of the measurement position corresponding to the i-th target temperature value. i Let be the vertical coordinate of the measurement position corresponding to the i-th target temperature value.

[0093] In some embodiments, refer to Figure 4 , Figure 4 for Figure 2 A schematic diagram of a specific process for step S250. Step S250 may include, but is not limited to, steps S410 to S430.

[0094] Step S410: Calculate the second sum of the vertical distances of each target, and use the ratio between the vertical distance of the target and the second sum as the second weight value of the vertical distance of the target;

[0095] Step S420: Perform a weighted average calculation on multiple target temperature values ​​and their corresponding second weight values ​​to obtain the average temperature value;

[0096] Specifically, the weighted average calculation process is as follows:

[0097]

[0098] Among them, A t The average temperature value is t. i For the i-th target temperature value, W i is the second weighted value of the vertical distance to the target corresponding to the i-th target temperature value, and M is the number of target temperature values.

[0099] Step S430: Adjust the compressor power of the target unit based on the average temperature value and the second weight value.

[0100] It is worth noting that, through steps S410 to S430, an average temperature value and a second weighted value are calculated, and then the compressor power of the target unit is adjusted based on the average temperature value and the second weighted value. This application obtains the average temperature value through a weighted average calculation, which combines the positional relationship of multiple target temperature values, rather than simply performing an average calculation. The average temperature value obtained in this way is more accurate and helps to adjust the compressor power of the target unit in the subsequent process.

[0101] In some embodiments, step S430 specifically includes:

[0102] The target power is calculated based on the power adjustment formula, and the compressor power of the target unit is adjusted to the target power. The power adjustment formula is:

[0103] P j (t)=λ*P j (t-1)+(A t -A0)*W j *p;

[0104] Among them, P j (t) represents the target power of the j-th target unit, P j (t-1) The compressor power of the j-th target unit in the previous cycle, A t A0 is the average temperature value, and W is the preset ideal average temperature value. jThe second weight value represents the vertical distance to the target corresponding to the j-th target unit; p and λ are preset coefficients. Those skilled in the art can set p and λ according to actual needs, for example, through multiple experiments, and then determine the values ​​of p and λ.

[0105] In the power adjustment formula, based on the compressor power of the previous cycle, the compressor power of the j-th target unit is adjusted according to the difference between the average temperature value and the ideal average temperature value, as well as the second weight value of the j-th target unit. This achieves fine adjustment of the compressor power of each target unit, with different adjustment amounts for each target unit. Compared with the traditional technology that directly adjusts according to a uniform adjustment amount, the adjustment method of this application is more refined, enabling faster adjustment response and improving adjustment timeliness.

[0106] In some embodiments, refer to Figure 5 , Figure 5 This is a flowchart illustrating a step following step S210 in an embodiment of this application. Steps S510 to S520 are also included after step S210.

[0107] Step S510: Calculate the absolute value of the difference between each measured temperature value, and calculate the average value of each absolute value to obtain the deviation from the average value;

[0108] Step S520: If the deviation from the average value is detected to be greater than a preset threshold, the rotation speed of the stirring component is adjusted based on the deviation from the average value.

[0109] It is worth noting that if the water temperature is too uneven in different locations within the water-cooling tank, it can cause the plastic strip to deform. Areas with higher water temperatures cool slowly, resulting in insufficient shrinkage of the plastic strip; areas with lower water temperatures cool quickly, leading to severe shrinkage. Differences in shrinkage rates at different parts of the same plastic strip can cause internal stress accumulation, ultimately manifesting as bending, twisting, or warping. In this application, steps S510 to S520 calculate the absolute value of the difference between each measured temperature value and the average value of each absolute value to obtain the deviation from the average value. If the deviation from the average value is detected to be greater than a preset threshold, the rotation speed of the stirring component is adjusted based on the deviation from the average value. This increases the turbulence of the water by the stirring component, promoting water flow in different areas and thus making the water temperature more uniform in all locations.

[0110] It should be noted that this application does not impose specific limitations on the preset threshold, and those skilled in the art can set the preset threshold according to actual needs.

[0111] It is worth noting that step S520 specifically includes:

[0112] The target rotational speed is calculated based on the rotational speed calculation formula, and the rotational speed of the stirring component is adjusted to the target rotational speed; the rotational speed calculation formula is as follows:

[0113] V t =V t-1 (1+d*L);

[0114] Where Vt is the target rotational speed, Vt-1 is the rotational speed of the stirring component in the previous cycle, d is the deviation from the average value, and L is the preset coefficient.

[0115] It should be noted that, compared to the traditional fixed-speed method, this application activates the speed adjustment of the stirring component when the deviation from the average value exceeds a preset threshold, thus suppressing the expansion of the temperature gradient in its early stages and making it easier to achieve uniform water temperature across the water-cooling tank. Those skilled in the art can set the value of L according to actual conditions; this application does not impose specific limitations on this.

[0116] A second aspect of this application provides a cooling control device for a plastic strip, applied to... Figure 1 In the illustrated cooling system. (Refer to...) Figure 6 , Figure 6 This is a block diagram of a cooling control device for a plastic strip according to an embodiment of this application. The cooling control device for the plastic strip includes:

[0117] The acquisition module 610 is used to periodically acquire the measured temperature values ​​at multiple measurement locations in the water-cooled tank through the temperature measurement component;

[0118] The first determining module 620 is used to determine at least one target temperature value that exceeds a preset temperature range from a plurality of measured temperature values;

[0119] The second determining module 630 is used to determine the target position based on the measurement position corresponding to the target temperature value;

[0120] The calculation module 640 is used to calculate the vertical distance between the target location and each cooling pipe, sort the vertical distances in ascending order, take the vertical distance with the highest preset ranking as the target vertical distance, and take the cooling unit corresponding to the target vertical distance as the target unit.

[0121] Adjustment module 650 is used to adjust the compressor power of each target unit based on the target vertical distance and target temperature value.

[0122] The cooling control device for the plastic strip in this application embodiment is used to execute the cooling control method for the plastic strip in the first aspect embodiment of this application. When executing the method, multiple measurement positions of the water-cooling tank are periodically acquired through a temperature measuring component to obtain multiple measured temperature values. Then, a target temperature value exceeding a preset temperature range is determined from the multiple measured temperature values. The number of target temperature values ​​is at least one. A target position is determined based on the measurement position corresponding to the target temperature value. The vertical distance between the target position and each cooling pipe is calculated, and the vertical distances are sorted in ascending order. The vertical distance with the highest preset ranking is taken as the target vertical distance. The cooling unit corresponding to the target vertical distance is taken as the target unit. The target unit is the cooling unit with a high temperature influence on the target position. The target unit is the cooling unit that needs adjustment. Only the target unit is adjusted, thus avoiding global adjustment of all cooling units, thereby enabling rapid adjustment response and improving adjustment timeliness. The compressor power of the target unit is adjusted based on the target vertical distance and the target temperature value, thereby cooling the water in the water-cooling tank and rapidly reducing the temperature at the target position. Thus, this application achieves dynamic adjustment of the compressor power of the cooling unit by measuring the temperature of the water cooling tank to determine the local location where the temperature exceeds the preset temperature range, i.e., the target location, and then adjusting the compressor power of part of the cooling unit based on the target location, so as to ensure the cooling effect and thus avoid the adhesion of plastic particles obtained in the subsequent pelletizing operation.

[0123] A third aspect of this application provides an electronic device including a memory and a processor. The memory stores a computer program, and the processor executes the computer program to implement the cooling control method for the plastic strip described in the above embodiment. This electronic device can be any smart terminal, including tablet computers, in-vehicle computers, etc.

[0124] In one embodiment, reference is made to Figure 7 , Figure 7 The hardware structure of an electronic device according to an embodiment of this application is illustrated. The electronic device includes:

[0125] The processor 701 can be implemented using a general-purpose CPU (Central Processing Unit), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this application.

[0126] The memory 702 can be implemented as a read-only memory (ROM), a static storage device, a dynamic storage device, or a random access memory (RAM). The memory 702 can store the operating system and other application programs. When the technical solutions provided in the embodiments of this specification are implemented through software or firmware, the relevant program code is stored in the memory 702 and is called and executed by the processor 701 to execute the cooling control method for the plastic strip of the embodiments of this application.

[0127] The input / output interface 703 is used to implement information input and output;

[0128] The communication interface 704 is used to enable communication and interaction between this device and other devices. Communication can be achieved through wired means (such as USB, Ethernet cable, etc.) or wireless means (such as mobile network, WIFI, Bluetooth, etc.).

[0129] Bus 705 transmits information between various components of the device (e.g., processor 701, memory 702, input / output interface 703, and communication interface 704);

[0130] The processor 701, memory 702, input / output interface 703, and communication interface 704 are connected to each other within the device via bus 705.

[0131] A fourth aspect of this application provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the cooling control method for a plastic strip according to the first aspect of this application.

[0132] Memory, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer-executable programs. Furthermore, memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, memory may optionally include memory remotely located relative to the processor, and these remote memories can be connected to the processor via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0133] The embodiments described in this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided by the embodiments of this application. As those skilled in the art will know, with the evolution of technology and the emergence of new application scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

[0134] Those skilled in the art will understand that the technical solutions shown in the figures do not constitute a limitation on the embodiments of this application, and may include more or fewer steps than shown, or combine certain steps, or different steps.

[0135] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0136] Those skilled in the art will understand that all or some of the steps in the methods disclosed above, as well as the functional modules / units in the systems and devices, can be implemented as software, firmware, hardware, or suitable combinations thereof.

[0137] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0138] It should be understood that in this application, "at least one (item)" means one or more, and "more than" means two or more. "And / or" is used to describe the relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can represent three cases: only A exists, only B exists, and both A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one (item) of a, b, or c can represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0139] In the embodiments provided in this application, it should be understood that the disclosed systems and methods can be implemented in other ways. For example, the system embodiments described above are merely illustrative; for instance, the division of the units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.

[0140] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0141] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0142] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes multiple instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing programs, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0143] The preferred embodiments of the present application have been described above with reference to the accompanying drawings, but this does not limit the scope of the claims of the present application. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and substance of the embodiments of the present application shall be within the scope of the claims of the present application.

Claims

1. A cooling control method of a plastic strip, characterized by, The application is applied to a cooling device, which comprises a water cooling tank, a temperature measuring assembly and a plurality of cooling units, cooling pipes of the plurality of cooling units are arranged in the water cooling tank in a length direction of the water cooling tank, and the cooling pipes are used for heat exchange with water in the water cooling tank. The water cooling tank is used for soaking plastic strips. The method comprises: Periodically acquiring measurement temperature values of a plurality of measurement positions in the water cooling tank through the temperature measuring assembly; Determining at least one target temperature value exceeding a preset temperature range from the plurality of measurement temperature values; Determining a target position based on the measurement position corresponding to the target temperature value; Calculating vertical distances between the target position and each cooling pipe, and sorting the vertical distances in ascending order, taking the vertical distance in the front preset position as a target vertical distance, and taking the cooling unit corresponding to the target vertical distance as a target unit; Adjusting the compressor power of each target unit based on the target vertical distance and the target temperature value.

2. The cooling control method of a plastic strip according to claim 1, characterized by, The method further comprises: In a case where the number of target temperature values is 1, taking the measurement position corresponding to the target temperature value as the target position; In a case where the number of target temperature values is greater than or equal to 2, calculating an exceeding value of each target temperature value exceeding the preset temperature range; Calculating a first sum of the exceeding values, and taking a ratio between the exceeding value and the first sum as a first weight value; Determining the target position based on the measurement position corresponding to each target temperature value and the corresponding first weight value.

3. The cooling control method of a plastic strip according to claim 2, characterized by, The method further comprises: Determining the target position based on the coordinates of the measurement position corresponding to each target temperature value and a position determination formula; the position determination formula is: ； ； ； wherein N is the number of the target temperature values, X is the horizontal coordinate of the target position, Y is the vertical coordinate of the target position, and Z is the vertical coordinate of the target position, k i the first weight value corresponding to the ith target temperature value; x i the horizontal coordinate of the measurement position corresponding to the ith target temperature value, y i the vertical coordinate of the measurement position corresponding to the ith target temperature value, z i the vertical coordinate of the measurement position corresponding to the ith target temperature value.

4. The cooling control method of a plastic strip according to claim 2, characterized by, The method further comprises: Calculating a second sum of the target vertical distances, and taking a ratio between the target vertical distance and the second sum as a second weight value of the target vertical distance; Performing weighted average calculation on the plurality of target temperature values and the corresponding second weight values to obtain an average temperature value; Adjusting the compressor power of the target unit based on the average temperature value and the second weight value.

5. The cooling control method of a plastic strip according to claim 4, characterized by, The method further comprises: Adjusting the compressor power of the target unit to a target power calculated based on a power adjustment formula; the power adjustment formula is: ； in, P j (t) Indicates the first j The target power of the target unit. P j (t-1) No. j The compressor power of the target unit in the previous cycle, A t The average temperature value, A 0 represents the preset ideal average temperature value; W j Indicates the first j The second weight value of the vertical distance of the target corresponding to each of the target units; p λ and λ are preset coefficients, respectively.

6. The cooling control method of a plastic strip according to claim 1, characterized by, The cooling device further comprises a stirring assembly used for stirring water received in the water cooling tank. After the step of periodically acquiring measurement temperature values of a plurality of measurement positions in the water cooling tank through the temperature measuring assembly, the method further comprises: An absolute value of a difference between each of the measured temperature values is calculated, and an average value of each of the absolute values is calculated to obtain a deviation average value; In a case where it is detected that the deviation average value is greater than a preset threshold value, a rotating speed of the stirring assembly is adjusted based on the deviation average value.

7. The cooling control method of a plastic strip according to claim 6, characterized by, The adjusting the rotating speed of the stirring assembly based on the deviation average value comprises: A target rotating speed is calculated based on a rotating speed calculation formula, and the rotating speed of the stirring assembly is adjusted to the target rotating speed; wherein the rotating speed calculation formula is: ； wherein Vt is the target rotating speed, Vt-1 is a rotating speed of the stirring assembly in a previous period, d is the deviation average value, and L is a preset coefficient.

8. A cooling control device for a plastic strip, characterized by The application is applied to a cooling device, which comprises a water cooling tank, a temperature measuring assembly and a plurality of cooling units. Cooling pipes of the plurality of cooling units are arranged in the water cooling tank in a length direction of the water cooling tank. The cooling pipes are used for heat exchange with water in the water cooling tank. The water cooling tank is used for soaking plastic strips. The device comprises: an acquisition module, configured to periodically acquire measured temperature values of a plurality of measuring positions in the water cooling tank through the temperature measuring assembly; a first determination module, configured to determine at least one target temperature value exceeding a preset temperature range from the measured temperature values; a second determination module, configured to determine a target position based on the measuring position corresponding to the target temperature value; a calculation module, configured to calculate a vertical distance between the target position and each of the cooling pipes, and sort the vertical distances in ascending order, take the vertical distance in a preset ranking as a target vertical distance, and take the cooling unit corresponding to the target vertical distance as a target unit; an adjustment module, configured to adjust a compressor power of each of the target units based on the target vertical distance and the target temperature value.

9. An electronic device, comprising: The electronic device comprises a memory and a processor. The memory stores a computer program. The processor implements the plastic strip cooling control method in any one of claims 1 to 7 when executing the computer program.

10. A computer readable storage medium, the storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to implement the plastic strip cooling control method in any one of claims 1 to 7.

Images