A control method and device for pump cooling equipment

Abstract

The present invention discloses a control method and device for a pump cooling device, which relates to the technical field of compressor processing, and includes: obtaining the initial temperature of a workpiece at the feeding end of the cooling device and calculating the cooling time of the workpiece; confirming the cooling conveying path of the workpiece, recording the first loading time of the workpiece entering the cooling device, and obtaining the second loading time of the workpiece entering the cooling conveying track in the cooling conveying path; calculating the cooling waiting time and the discharge time of the workpiece; obtaining the corresponding time node data of the workpiece passing through the output end of each cooling conveying track when the workpiece is transported on the discharge conveying track according to the discharge time of the workpiece and the corresponding cooling conveying track; comparing multiple time node data with the workpiece discharge time of each cooling conveying track, and adjusting the workpiece discharge time of the cooling conveying track according to the comparison result. By calculating the cooling time of the workpiece, the conveying time of the workpiece inside the cooling device is adjusted to meet the cooling demand of the workpiece and improve the processing efficiency of the workpiece cooling.

Description

Technical Field

[0001] The invention relates to the technical field of compressor processing, and in particular to a control method and device for pump body cooling equipment. Background Art

[0002] In the current assembly process of compressors, the pump body workpiece after the shrink sleeve process is generally cooled by a cooling furnace, and the pump body workpiece is driven to stand still or move in the cooling furnace, so that the pump body workpiece can meet the cooling requirements in the cooling furnace. In the existing cooling process, each workpiece is cooled by a preset path or a preset time, which is prone to the situation that the workpiece cooling time is too long, the workpiece cooling time is insufficient, or the workpiece cooling time is too long, which affects the processing quality and processing efficiency of the workpiece cooling process. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art. The present invention provides a control method and device for a pump body cooling device. By measuring the initial temperature of the workpiece and adjusting the cooling time of the workpiece inside the cooling device, the cooling device can meet the cooling and temperature reduction requirements of the workpiece and improve the cooling efficiency of the workpiece.

[0004] The present invention provides a control method for a pump cooling device, wherein the pump cooling device comprises a device body, a feed conveying track and a discharge conveying track arranged in parallel inside the device body, and a plurality of cooling conveying tracks arranged between the feed conveying track and the discharge conveying track;

[0005] The control method comprises:

[0006] Obtaining the initial temperature of the workpiece at the feeding end of the cooling device, and calculating the cooling time of the workpiece according to the initial temperature of the workpiece;

[0007] Confirm the cooling conveying path of the workpiece, record the first loading time of the workpiece entering the cooling device, and obtain the second loading time of the workpiece entering the cooling conveying track in the cooling conveying path;

[0008] Calculate the cooling waiting time of the workpiece based on the cooling conveying path and output the discharge time of the cooling conveying track;

[0009] According to the discharge time of the workpiece and the corresponding cooling conveyor track, the corresponding time node data of the workpiece passing through the output end of each cooling conveyor track when the workpiece is transported on the discharge conveyor track is obtained;

[0010] The plurality of time node data are compared with the workpiece discharge time of each cooling conveying track, and the workpiece discharge time of the cooling conveying track is adjusted according to the comparison result.

[0011] Further, the obtaining of the initial temperature of the workpiece at the feeding end of the cooling device, calculating the cooling time of the workpiece according to the initial temperature of the workpiece, and selecting the conveying path based on the cooling time includes:

[0012] Using a temperature sensor to detect the temperature of the workpiece at the feeding end of the cooling device to obtain the initial temperature of the workpiece;

[0013] The cooling time of the workpiece is calculated according to the cooling temperature set by the cooling device, combined with the initial temperature of the workpiece, and the heat exchange rate between the cooling device and the workpiece.

[0014] Further, the calculating the cooling time of the workpiece according to the cooling temperature set by the cooling device, in combination with the initial temperature of the workpiece, and the heat exchange rate between the cooling device and the workpiece includes:

[0015] The calculation formula for the cooling time of the workpiece is:

[0016]

[0017] Among them, t c is the cooling time of the workpiece, T0 is the initial temperature of the workpiece entering the cooling device, T r is the cooling temperature inside the cooling equipment, m is the mass of the workpiece, c is the specific heat capacity, and q is the heat exchange rate of the workpiece.

[0018] Further, the confirming the cooling conveying path of the workpiece, recording the first loading time of the workpiece entering the cooling device, and obtaining the second loading time of the workpiece entering the cooling conveying track in the cooling conveying path includes:

[0019] Acquire the conveying time of each cooling conveying path inside the cooling device, and sort the plurality of cooling conveying paths according to the conveying time of each cooling conveying path;

[0020] A cooling conveying path with the shortest conveying time is extracted as the cooling conveying path of the workpiece.

[0021] Further, the calculating of the cooling waiting time of the workpiece based on the cooling conveying path and outputting the discharge time of the cooling conveying track includes:

[0022] Compare the workpiece cooling time with the conveying time of the cooling conveying path. If the workpiece cooling time is greater than the conveying time of the cooling conveying path, calculate the cooling waiting time and the discharge time of the workpiece in combination with the workpiece cooling time, the first loading time, the second loading time and the conveying rate of the cooling conveying path.

[0023] If the workpiece cooling time is less than the conveying time of the cooling conveying path, the cooling waiting time and the discharge time of the workpiece are calculated in combination with the conveying time, the first loading time, the second loading time and the conveying rate of the cooling conveying path.

[0024] Furthermore, the calculation formula for the cooling waiting time is:

[0025] t w =t c -(t2-t1)-(n-1)d / v;

[0026] Among them, t w is the cooling waiting time, t c is the cooling time of the workpiece, t1 is the first loading time, t2 is the second loading time, n is a constant, d is the distance between two adjacent cooling conveying tracks, and v is the conveying rate of the cooling conveying path;

[0027] The calculation formula of the discharging time is:

[0028] t o =t2+t w ;

[0029] Among them, t o is the discharge time, t2 is the second loading time, t w Waiting time for cooling down.

[0030] Furthermore, the calculation formula for the cooling waiting time is:

[0031] t w =t t -(t2-t1)-(n-1)d / v;

[0032] Among them, t t is the conveying time of the cooling conveying path, t c is the cooling time of the workpiece, t1 is the first loading time, t2 is the second loading time, n is a constant, d is the distance between two adjacent cooling conveying tracks, and v is the conveying rate of the cooling conveying path.

[0033] Further, according to the discharge time of the workpiece and the corresponding cooling conveyor track, the corresponding time node data of the workpiece passing through the output end of each cooling conveyor track when the workpiece is transported on the discharge conveyor track includes:

[0034] T m =t o +md / v;

[0035] Among them, T m is the corresponding time node data of the workpiece passing through the output end of the mth cooling conveyor track, to is the discharge time of the workpiece, d is the distance between two adjacent cooling conveying tracks, v is the conveying rate of the cooling conveying path, and m is a constant.

[0036] Furthermore, comparing the plurality of time node data with the workpiece discharge time of each cooling conveying track, and adjusting the workpiece discharge time of the cooling conveying track according to the comparison result includes:

[0037] Extracting the time node data of the workpiece in sequence, and extracting the workpiece discharge time of the cooling conveying track corresponding to the time node data;

[0038] Calculate the difference between the workpiece discharge time and the time node data, and compare the difference calculation result with a preset value;

[0039] If the calculated difference result is less than the preset value, the cooling waiting time of the workpiece in the cooling conveying track is adjusted to be prolonged.

[0040] The present invention also provides a control device for a pump cooling device, the pump cooling device comprising a device body, a feed conveying track and a discharge conveying track arranged in parallel inside the device body, and a plurality of cooling conveying tracks arranged between the feed conveying track and the discharge conveying track;

[0041] The control device comprises:

[0042] Cooling calculation module: used to obtain the initial temperature of the workpiece at the feeding end of the cooling device, and calculate the cooling time of the workpiece according to the initial temperature of the workpiece;

[0043] Path confirmation module: used to confirm the cooling conveying path of the workpiece, record the first loading time of the workpiece entering the cooling device, and obtain the second loading time of the workpiece entering the cooling conveying track in the cooling conveying path;

[0044] Time calculation module: used to calculate the cooling waiting time of the workpiece based on the cooling conveying path and output the discharge time of the cooling conveying track;

[0045] Conveying calculation module: used to obtain the corresponding time node data of the workpiece passing through the output end of each cooling conveying track when the workpiece is transported on the discharging conveying track according to the discharging time of the workpiece and the corresponding cooling conveying track;

[0046] The discharge adjustment module is used to compare the multiple time node data with the workpiece discharge time of each cooling conveying track, and adjust the workpiece discharge time of the cooling conveying track according to the comparison result.

[0047] The present invention provides a control method and device for a pump body cooling device, which detects the initial temperature of a pump body workpiece, sets a cooling conveying path of the workpiece in the cooling device according to the initial temperature of the pump body workpiece, and adjusts the discharge time of the workpiece on different cooling conveying paths, so that the cooling device can meet the cooling and temperature reduction requirements of the workpiece and improve the utilization efficiency of the workpiece cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 is a flow chart of a control method of a pump cooling device in an embodiment of the present invention;

[0049] Figure 2 is a schematic structural diagram of a pump cooling device according to an embodiment of the present invention;

[0050] Figure 3 Schematic diagram of a control device for a pump cooling device in an embodiment of the present invention. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] Embodiment 1:

[0053] Figure 1 The flowchart of the control method of the pump cooling device in the embodiment of the present invention is shown. Figure 2 A schematic structural diagram of a pump body cooling device in an embodiment of the present invention is shown, wherein the pump body cooling device comprises an equipment body 1, a feed conveying track 11 and a discharge conveying track 13 arranged in parallel inside the equipment body 1, and a plurality of cooling conveying tracks 12 arranged between the feed conveying track 11 and the discharge conveying track 13. By arranging a plurality of cooling conveying tracks 12 between the feed conveying track 11 and the discharge conveying track 13, the compactness of the conveying track arrangement inside the equipment body 1 can be improved, thereby reducing the floor space occupied by the equipment body 1.

[0054] Specifically, a refrigeration component is provided inside the device body 1, and the refrigeration component performs refrigeration and cooling inside the device body 1, so that the temperature inside the device body 1 is maintained at a low temperature to meet the cooling demand of the workpiece.

[0055] Furthermore, an air supply duct is provided inside the equipment body 1, and the air outlet of the air supply duct is directed toward the feed conveying track 11, the discharging conveying track 13 and the plurality of cooling conveying tracks 12. When the workpiece is transported on the feed conveying track 11, the discharging conveying track 13 and the plurality of cooling conveying tracks 12, the air supply duct can transport cold air to the workpiece, thereby increasing the heat exchange rate of the workpiece inside the equipment body 1 and improving the cooling effect of the workpiece.

[0056] Specifically, the transport directions of the feed conveying track 11 and the discharging conveying track 13 are opposite, and a cooling conveying path for the workpiece is formed between the feed conveying track 11, any of the cooling conveying tracks 12 and the discharging conveying track 13. The workpiece enters the equipment body 1 of the cooling equipment and is transported along the cooling conveying path, so that the workpiece can fully contact the cold air inside the equipment body 1 and perform heat exchange, thereby improving the reliability of cooling the workpiece.

[0057] Furthermore, both ends of the cooling conveying track 12 are provided with material transfer mechanisms, and the cooling conveying track 12 can transfer workpieces between the material transfer mechanism and the feeding conveying track 11, and the cooling conveying track 12 can transfer workpieces between the material transfer mechanism and the discharging conveying track 13.

[0058] Furthermore, the material transfer mechanism may be a handling robot, which can realize the transfer of workpieces between the feed conveying track 11, the cooling conveying track 12 and the discharge conveying track 13 based on the guide rails and robot components arranged inside the cooling device.

[0059] The control method comprises:

[0060] S11: Acquire the initial temperature of the workpiece at the feeding end of the cooling device, and calculate the cooling time of the workpiece according to the initial temperature of the workpiece.

[0061] Specifically, a temperature sensor is provided at the feed end of the equipment main body 1. When the feed end of the equipment main body 1 is loaded, the pump body workpiece is loaded on the carrying plate, and the carrying plate with the workpiece is placed on the feed conveying track 11 of the equipment main body 1 by a manipulator, so that the feed conveying track 11 can drive the workpiece to be transported and moved inside the equipment main body 1 to achieve a cooling effect.

[0062] Specifically, the temperature of the workpiece at the feed end of the cooling device is detected by a temperature sensor to obtain the initial temperature of the workpiece. A number of installation stations can be arranged on the carrier plate so that one carrier plate can simultaneously satisfy multiple pump body workpiece loading operations, so that the cooling device can cool multiple workpieces at the same time, thereby improving the processing efficiency of workpiece cooling.

[0063] Specifically, according to the cooling temperature set by the cooling device, combined with the initial temperature of the workpiece, and the heat exchange rate between the cooling device and the workpiece, the cooling time of the workpiece is calculated, and the interior of the device body 1 is set to constant temperature operation, that is, the interior of the device body 1 of the cooling device is maintained in a low-temperature working state, so that the workpiece entering the interior of the device body 1 can quickly exchange heat with the cold air inside the device body 1, thereby meeting the needs of workpiece cooling processing.

[0064] The calculation formula for the cooling time of the workpiece is:

[0065]

[0066] Among them, t c is the cooling time of the workpiece, T0 is the initial temperature of the workpiece entering the cooling device, T r is the cooling temperature inside the cooling equipment, m is the mass of the workpiece, c is the specific heat capacity, and q is the heat exchange rate of the workpiece.

[0067] Specifically, by setting the cooling temperature of the cooling device and combining it with the initial temperature of the workpiece when it enters the device body 1, the cooling time required for the workpiece can be accurately obtained, thereby adjusting the cooling and conveying time of the workpiece in the device body 1 to meet the cooling and temperature reduction requirements of the workpiece.

[0068] S12: confirming the cooling conveying path of the workpiece, recording the first loading time of the workpiece into the cooling device, and obtaining the second loading time of the workpiece into the cooling conveying track 12 in the cooling conveying path.

[0069] Obtain the conveying time of each cooling conveying path inside the cooling equipment, sort several cooling conveying paths according to the conveying time of each cooling conveying path, query the working status of each cooling conveying path in the equipment body 1, and when the conveying path in the equipment body 1 is in an idle state, calculate the conveying time of the cooling conveying path according to the path length of the cooling conveying path combined with the conveying rate of the cooling conveying path.

[0070] If the cooling conveying path is in working state, that is, there is a workpiece on the cooling conveying path, the remaining time for conveying the workpiece on the cooling conveying path is obtained, and the conveying time of the cooling conveying path is calculated in combination with the length of the cooling conveying path and the conveying rate of the cooling conveying path.

[0071] Furthermore, since each cooling conveying track 12 is neatly arranged between the feed conveying track 11 and the discharge conveying track 13, and the loading end and the unloading end of the equipment main body 1 are arranged on the same side of the equipment main body 1, the length of the cooling conveying path corresponding to each cooling conveying track 12 is different, that is, each cooling conveying path in the equipment main body 1 has a different cooling conveying time for the workpiece in an idle state.

[0072] The cooling conveying path with the shortest conveying time is extracted as the cooling conveying path of the workpiece, the conveying time of each cooling conveying path of the equipment main body 1 is obtained according to the working status of each cooling conveying path in the equipment main body 1, several cooling conveying paths are sorted according to the conveying time, and the conveying path with the shortest conveying time is extracted as the cooling conveying path of the workpiece.

[0073] Specifically, when the cooling conveying path of the workpiece is confirmed, the time when the workpiece enters the cooling device is recorded, and the time when the workpiece enters the device body 1 is marked as the first loading time, the feed conveying track 11 can transport the workpiece to the loading end position of the corresponding cooling conveying track 12 according to the cooling conveying path, and transfer the workpiece based on the transfer mechanism so that the workpiece can enter the cooling conveying track 12.

[0074] Furthermore, the time when the workpiece enters the cooling conveyor track 12 is recorded and marked as the second loading time. Based on the first loading time and the second loading time, the conveying time of the workpiece by the feed conveyor track 11 inside the device body 1 can be obtained, so as to improve the accuracy of adjusting the cooling treatment time of the workpiece in the device body 1.

[0075] Furthermore, the time when the workpiece enters the cooling conveying track 12 can be accurately obtained based on the first loading time and the second loading time.

[0076] S13: Calculating the cooling waiting time of the workpiece and outputting the discharge time of the cooling conveying track 12 based on the cooling conveying path.

[0077] Specifically, based on the operating rate of the equipment body 1, when the workpiece continues to run along the cooling conveying path, the conveying time of the cooling conveying path cannot meet the cooling demand of the workpiece, and the workpiece needs to stay on the cooling conveying track 12 so that the workpiece can stay inside the equipment body 1 for a sufficient time to meet the cooling demand of the workpiece.

[0078] Compare the workpiece cooling time with the conveying time of the cooling conveying path. If the workpiece cooling time is greater than the conveying time of the cooling conveying path, set the cooling time as the duration of the workpiece in the equipment body 1, and calculate the cooling waiting time and the discharge time of the workpiece in combination with the workpiece cooling time, the first loading time, the second loading time and the conveying rate of the cooling conveying path;

[0079] The calculation formula for the cooling waiting time is:

[0080] t w =t c -(t2-t1)-(n-1)d / v;

[0081] Among them, t w is the cooling waiting time, t c is the cooling time of the workpiece, t1 is the first loading time, t2 is the second loading time, n is a constant, d is the distance between two adjacent cooling conveying tracks 12, and v is the conveying rate of the cooling conveying path.

[0082] Furthermore, the residence time of the workpiece on the cooling conveying track 12 is obtained by subtracting the time consumed by the workpiece on the feeding conveying track 11 and the discharging conveying track 13 from the cooling time, that is, the cooling waiting time.

[0083] Specifically, when the cooling time of the workpiece is less than the conveying time of the cooling conveying path, that is, the cooling conveying track 12 is in working state, the cooling waiting time and the discharging time of the workpiece are calculated in combination with the conveying time, the first loading time, the second loading time and the conveying rate of the cooling conveying path.

[0084] The calculation formula for the cooling waiting time is:

[0085] t w =t t -(t2-t1)-(n-1)d / v;

[0086] Among them, t t is the conveying time of the cooling conveying path, t c is the cooling time of the workpiece, t1 is the first loading time, t2 is the second loading time, n is a constant, d is the distance between two adjacent cooling conveying tracks 12, and v is the conveying rate of the cooling conveying path.

[0087] The residence time of the workpiece on the cooling and conveying track 12 can be accurately obtained according to the cooling time and the conveying time, thereby improving the accuracy of controlling the cooling time of the workpiece.

[0088] Specifically, the calculation formula of the discharging time is:

[0089] t o =t2+t w ;

[0090] Among them, t o is the discharge time, t2 is the second loading time, t w Waiting time for cooling down.

[0091] Based on the cooling waiting time of the workpiece on the cooling conveying track 12 and combined with the second loading time, the unloading time of the workpiece on the corresponding cooling conveying track 12 can be calculated, that is, the time when the workpiece is transferred from the cooling conveying track 12 to the unloading conveying track 13, so as to adjust the cooling waiting time of the workpiece according to the conveying requirements of the workpiece.

[0092] S14: According to the discharge time of the workpiece and the corresponding cooling conveying track 12 , the corresponding time node data of the workpiece passing through the output end of each cooling conveying track 12 when the workpiece is transported on the discharge conveying track 13 is obtained.

[0093] The calculation formula for the corresponding time node data is:

[0094] T m =t o +md / v;

[0095] Among them, T m is the corresponding time node data of the workpiece passing through the output end of the mth cooling conveying track 12, t o is the discharge time of the workpiece, d is the distance between two adjacent cooling conveying tracks 12, v is the conveying rate of the cooling conveying path, and m is a constant.

[0096] Specifically, an nth cooling conveying track 12 is arranged in the cooling and transporting path corresponding to the workpiece, and k cooling conveying tracks 12 are arranged between the nth cooling conveying track 12 and the unloading end of the equipment main body 1, and k=n-1. The time node data of the k cooling conveying tracks 12 corresponding to the workpiece are calculated in sequence to obtain the operation status of the workpiece inside the equipment main body 1.

[0097] Furthermore, the k cooling and conveying tracks 12 are sequentially substituted into the calculation formula of the corresponding time node data, thereby obtaining the corresponding time node data of each cooling and conveying track 12, so as to adjust the operation control of the workpiece in the equipment body 1 according to the corresponding time node data.

[0098] S15: Compare the plurality of time node data with the workpiece discharging time of each cooling conveying track 12, and adjust the workpiece discharging time of the cooling conveying track 12 according to the comparison result.

[0099] Sequentially extract the time node data of the workpiece corresponding to different cooling conveying tracks 12, and extract the workpiece discharge time corresponding to the cooling conveying track 12 of the time node data;

[0100] The difference between the workpiece discharge time and the time node data is calculated, and the difference calculation result is compared with the preset value. If the difference calculation result is less than the preset value, the cooling waiting time of the workpiece in the cooling conveying track 12 is adjusted to extend.

[0101] Specifically, when the calculated difference result is less than the preset value, the workpiece on the discharge conveyor track 13 is likely to interfere with the workpiece transfer operation of the cooling conveyor track 12 when passing through the cooling conveyor track 12, affecting the reliability of the transportation between the various workpieces in the equipment body 1. By extending the cooling waiting time of the workpiece on the cooling conveyor track 12, the workpiece discharge time of the cooling conveyor track 12 is adjusted to avoid the interference of workpiece movement.

[0102] Furthermore, according to the conveying rate of the conveying track inside the equipment body 1, the value range of the preset value can be set to 0 to 20s. In the present embodiment, the preset value is set to 10s. When the difference between the time node data and the workpiece discharge time of the corresponding cooling conveying track 12 is less than 10s, the discharge time of the workpiece is delayed by adjusting the cooling waiting time of the workpiece on the cooling conveying track 12 to avoid interference of workpiece movement on the discharge conveying track 13.

[0103] Furthermore, in this embodiment, an adjustment value is set to extend the cooling waiting time of the workpiece in the cooling and conveying track 12. The adjustment value can be set to 25s. When the difference calculation result is less than the preset value, the cooling waiting time of the workpiece in the cooling and conveying track 12 is increased by 25s, thereby ensuring the normal transportation of the workpiece in the equipment body 1.

[0104] Specifically, when the cooling waiting time of the workpiece on the cooling conveying track 12 increases, the changed workpiece discharging time of the cooling conveying track 12 is obtained, and the discharging and conveying of the workpiece is adjusted based on the changed workpiece discharging time, that is, it is detected whether there is motion interference during the discharging and conveying of the workpiece. For specific operations, please refer to the operating contents of step S14 and step S15, which will not be repeated here.

[0105] An embodiment of the present invention provides a control method for a pump body cooling device, which detects the initial temperature of a pump body workpiece, sets a cooling conveying path of the workpiece in the cooling device according to the initial temperature of the pump body workpiece, and adjusts the discharge time of the workpiece on different cooling conveying paths, so that the cooling device can meet the cooling and temperature reduction requirements of the workpiece and improve the utilization efficiency of the workpiece cooling.

[0106] Embodiment 2:

[0107] Figure 3 A schematic diagram of a control device for a pump cooling device in an embodiment of the present invention is shown, wherein the control device comprises:

[0108] Cooling calculation module 10: used to obtain the initial temperature of the workpiece at the feeding end of the cooling device, and calculate the cooling time of the workpiece according to the initial temperature of the workpiece.

[0109] Specifically, a temperature sensor is provided at the feed end of the equipment main body 1. When the feed end of the equipment main body 1 is loaded, the pump body workpiece is loaded on the carrying plate, and the carrying plate with the workpiece is placed on the feed conveying track 11 of the equipment main body 1 by a manipulator, so that the feed conveying track 11 can drive the workpiece to be transported and moved inside the equipment main body 1 to achieve a cooling effect.

[0110] Specifically, the temperature of the workpiece at the feed end of the cooling device is detected by a temperature sensor to obtain the initial temperature of the workpiece. A number of installation stations can be arranged on the carrier plate so that one carrier plate can simultaneously satisfy multiple pump body workpiece loading operations, so that the cooling device can cool multiple workpieces at the same time, thereby improving the processing efficiency of workpiece cooling.

[0111] Specifically, according to the cooling temperature set by the cooling device, combined with the initial temperature of the workpiece, and the heat exchange rate between the cooling device and the workpiece, the cooling time of the workpiece is calculated, and the interior of the device body 1 is set to constant temperature operation, that is, the interior of the device body 1 of the cooling device is maintained in a low-temperature working state, so that the workpiece entering the interior of the device body 1 can quickly exchange heat with the cold air inside the device body 1, thereby meeting the needs of workpiece cooling processing.

[0112] The calculation formula for the cooling time of the workpiece is:

[0113]

[0114] Among them, t c is the cooling time of the workpiece, T0 is the initial temperature of the workpiece entering the cooling device, T r is the cooling temperature inside the cooling equipment, m is the mass of the workpiece, c is the specific heat capacity, and q is the heat exchange rate of the workpiece.

[0115] The path confirmation module 20 is used to confirm the cooling conveying path of the workpiece, record the first loading time of the workpiece entering the cooling device, and obtain the second loading time of the workpiece entering the cooling conveying track 12 in the cooling conveying path.

[0116] Obtain the conveying time of each cooling conveying path inside the cooling equipment, sort several cooling conveying paths according to the conveying time of each cooling conveying path, query the working status of each cooling conveying path in the equipment body 1, and when the conveying path in the equipment body 1 is in an idle state, calculate the conveying time of the cooling conveying path according to the path length of the cooling conveying path combined with the conveying rate of the cooling conveying path.

[0117] If the cooling conveying path is in working state, that is, there is a workpiece on the cooling conveying path, the remaining time for conveying the workpiece on the cooling conveying path is obtained, and the conveying time of the cooling conveying path is calculated in combination with the length of the cooling conveying path and the conveying rate of the cooling conveying path.

[0118] Furthermore, since each cooling conveying track 12 is neatly arranged between the feed conveying track 11 and the discharge conveying track 13, and the loading end and the unloading end of the equipment main body 1 are arranged on the same side of the equipment main body 1, the length of the cooling conveying path corresponding to each cooling conveying track 12 is different, that is, each cooling conveying path in the equipment main body 1 has a different cooling conveying time for the workpiece in an idle state.

[0119] The cooling conveying path with the shortest conveying time is extracted as the cooling conveying path of the workpiece, the conveying time of each cooling conveying path of the equipment main body 1 is obtained according to the working status of each cooling conveying path in the equipment main body 1, several cooling conveying paths are sorted according to the conveying time, and the conveying path with the shortest conveying time is extracted as the cooling conveying path of the workpiece.

[0120] Specifically, when the cooling conveying path of the workpiece is confirmed, the time when the workpiece enters the cooling device is recorded, and the time when the workpiece enters the device body 1 is marked as the first loading time, the feed conveying track 11 can transport the workpiece to the loading end position of the corresponding cooling conveying track 12 according to the cooling conveying path, and transfer the workpiece based on the transfer mechanism so that the workpiece can enter the cooling conveying track 12.

[0121] Furthermore, the time when the workpiece enters the cooling conveyor track 12 is recorded and marked as the second loading time. Based on the first loading time and the second loading time, the conveying time of the workpiece by the feed conveyor track 11 inside the device body 1 can be obtained, so as to improve the accuracy of adjusting the cooling treatment time of the workpiece in the device body 1.

[0122] The time calculation module 30 is used to calculate the cooling waiting time of the workpiece based on the cooling conveying path and output the discharge time of the cooling conveying track 12 .

[0123] Specifically, based on the operating rate of the equipment body 1, when the workpiece continues to run along the cooling conveying path, the conveying time of the cooling conveying path cannot meet the cooling demand of the workpiece, and the workpiece needs to stay on the cooling conveying track 12 so that the workpiece can stay inside the equipment body 1 for a sufficient time to meet the cooling demand of the workpiece.

[0124] Compare the workpiece cooling time with the conveying time of the cooling conveying path. If the workpiece cooling time is greater than the conveying time of the cooling conveying path, set the cooling time as the duration of the workpiece in the equipment body 1, and calculate the cooling waiting time and the discharge time of the workpiece in combination with the workpiece cooling time, the first loading time, the second loading time and the conveying rate of the cooling conveying path;

[0125] The calculation formula for the cooling waiting time is:

[0126] t w =t c -(t2-t1)-(n-1)d / v;

[0127] Among them, t w is the cooling waiting time, t c is the cooling time of the workpiece, t1 is the first loading time, t2 is the second loading time, n is a constant, d is the distance between two adjacent cooling conveying tracks 12, and v is the conveying rate of the cooling conveying path.

[0128] Furthermore, the residence time of the workpiece on the cooling conveying track 12 is obtained by subtracting the time consumed by the workpiece on the feeding conveying track 11 and the discharging conveying track 13 from the cooling time, that is, the cooling waiting time.

[0129] Specifically, when the cooling time of the workpiece is less than the conveying time of the cooling conveying path, that is, the cooling conveying track 12 is in working state, the cooling waiting time and the discharging time of the workpiece are calculated in combination with the conveying time, the first loading time, the second loading time and the conveying rate of the cooling conveying path.

[0130] The calculation formula for the cooling waiting time is:

[0131] t w =t t -(t2-t1)-(n-1)d / v;

[0132] Among them, t t is the conveying time of the cooling conveying path, t c is the cooling time of the workpiece, t1 is the first loading time, t2 is the second loading time, n is a constant, d is the distance between two adjacent cooling conveying tracks 12, and v is the conveying rate of the cooling conveying path.

[0133] The residence time of the workpiece on the cooling and conveying track 12 can be accurately obtained according to the cooling time and the conveying time, thereby improving the accuracy of controlling the cooling time of the workpiece.

[0134] Specifically, the calculation formula of the discharging time is:

[0135] t o =t2+t w ;

[0136] Among them, t o is the discharge time, t2 is the second loading time, t w Waiting time for cooling down.

[0137] Based on the cooling waiting time of the workpiece on the cooling conveying track 12 and combined with the second loading time, the unloading time of the workpiece on the corresponding cooling conveying track 12 can be calculated, that is, the time when the workpiece is transferred from the cooling conveying track 12 to the unloading conveying track 13, so as to adjust the cooling waiting time of the workpiece according to the conveying requirements of the workpiece.

[0138] The conveying calculation module 40 is used to obtain the corresponding time node data of the workpiece passing through the output end of each cooling conveying track 12 when the workpiece is transported on the discharge conveying track 13 according to the discharge time of the workpiece and the corresponding cooling conveying track 12.

[0139] The calculation formula for the corresponding time node data is:

[0140] T m =t o +md / v;

[0141] Among them, T m is the corresponding time node data of the workpiece passing through the output end of the mth cooling conveying track 12, t o is the discharge time of the workpiece, d is the distance between two adjacent cooling conveying tracks 12, v is the conveying rate of the cooling conveying path, and m is a constant.

[0142] Specifically, an nth cooling conveying track 12 is arranged in the cooling and transporting path corresponding to the workpiece, and k cooling conveying tracks 12 are arranged between the nth cooling conveying track 12 and the unloading end of the equipment main body 1, and k=n-1. The time node data of the k cooling conveying tracks 12 corresponding to the workpiece are calculated in sequence to obtain the operation status of the workpiece inside the equipment main body 1.

[0143] Furthermore, the k cooling and conveying tracks 12 are sequentially substituted into the calculation formula of the corresponding time node data, thereby obtaining the corresponding time node data of each cooling and conveying track 12, so as to adjust the operation control of the workpiece in the equipment body 1 according to the corresponding time node data.

[0144] The discharge adjustment module 50 is used to compare the plurality of time node data with the workpiece discharge time of each cooling conveying track 12 , and adjust the workpiece discharge time of the cooling conveying track 12 according to the comparison result.

[0145] Sequentially extract the time node data of the workpiece corresponding to different cooling conveying tracks 12, and extract the workpiece discharge time corresponding to the cooling conveying track 12 of the time node data;

[0146] The difference between the workpiece discharge time and the time node data is calculated, and the difference calculation result is compared with the preset value. If the difference calculation result is less than the preset value, the cooling waiting time of the workpiece in the cooling conveying track 12 is adjusted to extend.

[0147] Specifically, when the calculated difference result is less than the preset value, the workpiece on the discharge conveyor track 13 is likely to interfere with the workpiece transfer operation of the cooling conveyor track 12 when passing through the cooling conveyor track 12, affecting the reliability of the transportation between the various workpieces in the equipment body 1. By extending the cooling waiting time of the workpiece on the cooling conveyor track 12, the workpiece discharge time of the cooling conveyor track 12 is adjusted to avoid the interference of workpiece movement.

[0148] Furthermore, according to the conveying rate of the conveying track inside the equipment body 1, the value range of the preset value can be set to 0 to 20s. In the present embodiment, the preset value is set to 10s. When the difference between the time node data and the workpiece discharge time of the corresponding cooling conveying track 12 is less than 10s, the discharge time of the workpiece is delayed by adjusting the cooling waiting time of the workpiece on the cooling conveying track 12 to avoid interference of workpiece movement on the discharge conveying track 13.

[0149] Furthermore, in this embodiment, an adjustment value is set to extend the cooling waiting time of the workpiece in the cooling and conveying track 12. The adjustment value can be set to 25s. When the difference calculation result is less than the preset value, the cooling waiting time of the workpiece in the cooling and conveying track 12 is increased by 25s, thereby ensuring the normal transportation of the workpiece in the equipment body 1.

[0150] Specifically, when the cooling waiting time of the workpiece on the cooling conveying track 12 increases, the changed workpiece discharging time of the cooling conveying track 12 is obtained, and the discharging and conveying of the workpiece is adjusted based on the changed workpiece discharging time, that is, it is detected whether there is motion interference during the discharging and conveying of the workpiece. For specific operations, please refer to the operating contents of step S14 and step S15, which will not be repeated here.

[0151] A person skilled in the art may understand that all or part of the steps in the various methods of the above embodiments may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, and the storage medium may include: a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, etc.

[0152] In addition, the control method and device for a pump cooling device provided in an embodiment of the present invention are introduced in detail above. Specific examples are used herein to illustrate the principle and implementation mode of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A control method for a pump cooling device, characterized in that: The pump body cooling device comprises a device body, a feed conveying track and a discharge conveying track arranged in parallel inside the device body, and a plurality of cooling conveying tracks arranged between the feed conveying track and the discharge conveying track; The control method comprises: Obtaining the initial temperature of the workpiece at the feeding end of the cooling device, and calculating the cooling time of the workpiece according to the initial temperature of the workpiece; Confirm the cooling conveying path of the workpiece, record the first loading time of the workpiece entering the cooling device, and obtain the second loading time of the workpiece entering the cooling conveying track in the cooling conveying path; Calculate the cooling waiting time of the workpiece based on the cooling conveying path and output the discharge time of the cooling conveying track; Compare the workpiece cooling time with the conveying time of the cooling conveying path. If the workpiece cooling time is greater than the conveying time of the cooling conveying path, calculate the cooling waiting time and the discharge time of the workpiece in combination with the workpiece cooling time, the first loading time, the second loading time and the conveying rate of the cooling conveying path. If the workpiece cooling time is less than the conveying time of the cooling conveying path, the cooling waiting time and the discharge time of the workpiece are calculated by combining the conveying time, the first loading time, the second loading time and the conveying rate of the cooling conveying path; According to the discharge time of the workpiece and the corresponding cooling conveyor track, the corresponding time node data of the workpiece passing through the output end of each cooling conveyor track when the workpiece is transported on the discharge conveyor track is obtained; The plurality of time node data are compared with the workpiece discharge time of each cooling conveying track, and the workpiece discharge time of the cooling conveying track is adjusted according to the comparison result.

2. The control method of the pump cooling device according to claim 1, characterized in that: The obtaining of the initial temperature of the workpiece at the feeding end of the cooling device, calculating the cooling time of the workpiece according to the initial temperature of the workpiece, and selecting the conveying path based on the cooling time includes: Using a temperature sensor to detect the temperature of the workpiece at the feeding end of the cooling device to obtain the initial temperature of the workpiece; The cooling time of the workpiece is calculated according to the cooling temperature set by the cooling device, combined with the initial temperature of the workpiece, and the heat exchange rate between the cooling device and the workpiece.

3. The control method of the pump cooling device according to claim 2, characterized in that: The step of calculating the cooling time of the workpiece according to the cooling temperature set by the cooling device, in combination with the initial temperature of the workpiece, and the heat exchange rate between the cooling device and the workpiece comprises: The calculation formula for the cooling time of the workpiece is: Among them, t c is the cooling time of the workpiece, T0 is the initial temperature of the workpiece entering the cooling equipment, T r is the cooling temperature inside the cooling equipment, m is the mass of the workpiece, c is the specific heat capacity, and q is the heat exchange rate of the workpiece.

4. The control method of the pump cooling device according to claim 1, characterized in that: The confirming the cooling conveying path of the workpiece, recording the first loading time of the workpiece entering the cooling device, and obtaining the second loading time of the workpiece entering the cooling conveying track in the cooling conveying path includes: Acquire the conveying time of each cooling conveying path inside the cooling device, and sort the plurality of cooling conveying paths according to the conveying time of each cooling conveying path; A cooling conveying path with the shortest conveying time is extracted as the cooling conveying path of the workpiece.

5. The control method of the pump cooling device according to claim 1, characterized in that: The calculation formula for the cooling waiting time is: t w =t c -(t2-t1)-(n-1)d / v; Among them, t w is the cooling waiting time, t c is the cooling time of the workpiece, t1 is the first loading time, t2 is the second loading time, n is a constant, d is the distance between two adjacent cooling conveying tracks, and v is the conveying rate of the cooling conveying path; The calculation formula of the discharging time is: t o =t2+t w ; Among them, t o is the discharge time, t2 is the second loading time, t w Waiting time for cooling down.

6. The control method of the pump cooling device according to claim 1, characterized in that: The calculation formula for the cooling waiting time is: t w =t t -(t2-t1)-(n-1)d / v; Among them, t t is the conveying time of the cooling conveying path, t c is the cooling time of the workpiece, t1 is the first loading time, t2 is the second loading time, n is a constant, d is the distance between two adjacent cooling conveying tracks, and v is the conveying rate of the cooling conveying path.

7. The control method of the pump cooling device according to claim 1, characterized in that: According to the discharge time of the workpiece and the corresponding cooling conveyor track, obtaining the corresponding time node data of the workpiece passing through the output end of each cooling conveyor track when the workpiece is transported on the discharge conveyor track includes: The calculation formula for the corresponding time node data is: T m =t o +md / v; Among them, T m is the corresponding time node data of the workpiece passing through the output end of the mth cooling conveyor track, t o is the discharge time of the workpiece, d is the distance between two adjacent cooling conveying tracks, v is the conveying rate of the cooling conveying path, and m is a constant.

8. The control method of the pump cooling device according to claim 1, characterized in that: The step of comparing the plurality of time node data with the workpiece discharge time of each cooling conveying track and adjusting the workpiece discharge time of the cooling conveying track according to the comparison result comprises: Extracting the time node data of the workpiece in sequence, and extracting the workpiece discharge time of the cooling conveying track corresponding to the time node data; Performing difference calculation on the workpiece discharge time and the time node data, and comparing the difference calculation result with a preset value; If the calculated difference result is less than the preset value, the cooling waiting time of the workpiece in the cooling conveying track is adjusted to be extended.

9. A control device for a pump cooling device, characterized in that: The pump body cooling device comprises a device body, a feed conveying track and a discharge conveying track arranged in parallel inside the device body, and a plurality of cooling conveying tracks arranged between the feed conveying track and the discharge conveying track; The control device comprises: Cooling calculation module: used to obtain the initial temperature of the workpiece at the feeding end of the cooling device, and calculate the cooling time of the workpiece according to the initial temperature of the workpiece; Path confirmation module: used to confirm the cooling conveying path of the workpiece, record the first loading time of the workpiece entering the cooling device, and obtain the second loading time of the workpiece entering the cooling conveying track in the cooling conveying path; Time calculation module: used to calculate the cooling waiting time of the workpiece based on the cooling conveying path and output the discharge time of the cooling conveying track; Compare the workpiece cooling time with the conveying time of the cooling conveying path. If the workpiece cooling time is greater than the conveying time of the cooling conveying path, calculate the cooling waiting time and the discharge time of the workpiece in combination with the workpiece cooling time, the first loading time, the second loading time and the conveying rate of the cooling conveying path. If the workpiece cooling time is less than the conveying time of the cooling conveying path, the cooling waiting time and the discharge time of the workpiece are calculated by combining the conveying time, the first loading time, the second loading time and the conveying rate of the cooling conveying path; Conveying calculation module: used to obtain the corresponding time node data of the workpiece passing through the output end of each cooling conveying track when the workpiece is transported on the discharging conveying track according to the discharging time of the workpiece and the corresponding cooling conveying track; The discharge adjustment module is used to compare the multiple time node data with the workpiece discharge time of each cooling conveying track, and adjust the workpiece discharge time of the cooling conveying track according to the comparison result.

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