CN-122007973-A - Constant-temperature cutting system of plate cutting machine and control method

CN122007973ACN 122007973 ACN122007973 ACN 122007973ACN-122007973-A

Abstract

The invention discloses a constant-temperature cutting system and a control method of a plate cutting machine, wherein the constant-temperature cutting system comprises a cutting execution module, a water circulation module and a control module, the cutting execution module comprises a transverse cutter roller and a bottom cutter beam, the transverse cutter roller is provided with a first water circulation channel, the bottom cutter beam is provided with a second water circulation channel, the first water circulation channel is connected with a first water circulation pump to form a first water circulation assembly, the second water circulation channel is connected with a second water circulation pump to form a second water circulation assembly, the water circulation module further comprises a water tank, water distribution is realized through a flow distribution valve, a temperature adjusting device is used for adjusting water temperature, the system further comprises a detection module, the detection module comprises a first temperature sensor, a second temperature sensor and a cutting force sensor, and the control module is respectively and electrically connected with the first temperature sensor, the second temperature sensor and the cutting force sensor to generate control instructions.

Inventors

ZHANG CHUANXI
HUANG HUAFENG
WANG ZHAOCHANG
XIAO GUANGCAI
YAO WEI
WANG LIYONG
WANG SHAOGUANG
HUANG KAI

Assignees

亚太森博（山东）浆纸有限公司

Dates

Publication Date: 20260512
Application Date: 20260401

Claims (10)

1. A constant temperature cutting system for a veneer slicer, comprising: the cutting execution module (1), the cutting execution module (1) comprises a transverse cutter roller (11) and a bed knife beam (12); A water circulation module (2), the water circulation module (2) comprising a first water circulation assembly (21) for adjusting the temperature of the crosscutting knife roll (11) and a second water circulation assembly (22) for adjusting the temperature of the bed knife beam (12), The transverse cutter roller (11) is provided with a first water circulation channel (211), the bed cutter beam (12) is provided with a second water circulation channel (221), the first water circulation channel (211) is connected with a first water circulation pump (212) to form a first water circulation assembly (21), the second water circulation channel (221) is connected with a second water circulation pump (222) to form a second water circulation assembly (22), The water circulation module (2) also comprises a water tank (23), the water tank (23) is communicated with the first water circulation assembly (21) and the second water circulation assembly (22) through a flow distribution valve (231) to realize water distribution, And a temperature adjustment device (24) for adjusting the water temperature to the first water circulation assembly (21) and the second water circulation assembly (22); The system may further comprise a processor configured to, The detection module (3) comprises a first temperature sensor (31) arranged on the transverse cutter roller (11), a second temperature sensor (32) arranged on the bed cutter beam (12) and a cutting force sensor (33); The control module (4) is respectively and electrically connected with the first temperature sensor (31), the second temperature sensor (32) and the cutting force sensor (33), generates a first temperature deviation signal according to the signal of the first temperature sensor (31) and is used for controlling the water flow rate and/or the temperature in the first water circulation assembly (21), Generating a second temperature deviation signal based on a second temperature sensor (32) signal for controlling the water flow rate and/or temperature in the second water circulation assembly (21), And generating a cutting load state signal according to the signal of the cutting force sensor (33) and a preset working condition parameter, and controlling the feeding speed of the plate cutting machine.
2. The system of claim 1, wherein the system further comprises a controller configured to control the controller, The first water circulation channel (211) comprises a first water inlet end arranged at any end of the transverse cutter roller (11) in the axial direction and a first water outlet end arranged at the other end of the transverse cutter roller (11) in the axial direction, The first water circulation channel (211) spirally extends in the transverse knife roll (11) from the water inlet end to the water outlet end.
3. The system of claim 2, wherein the system further comprises a controller configured to control the controller, The first water circulation channel (211) is provided with a plurality of inward-protruding guide ribs (2111), and the guide ribs (2111) are curved in an arc shape towards the first water outlet end direction.
4. The system of claim 1, wherein the system further comprises a controller configured to control the controller, The temperature regulating device (24) comprises a first heating element (241) and a second heating element (242), The first heating element (241) is used for heating water of the first water circulation assembly (21); the second heating element (242) is used for heating water of the second water circulation assembly (22).
5. The system of claim 4, wherein the system further comprises a controller configured to control the controller, The temperature regulating device (24) also comprises a plurality of cooling pieces (243) arranged on the water tank (23), The water tank (23) is provided with a first partition corresponding to the first water circulation assembly (21), a second partition corresponding to the second water circulation assembly (22), water distribution to the first water circulation assembly (21) and the second water circulation assembly (22) is realized through a flow distribution valve (231), Part of the cooling piece (243) is arranged in the first partition, and part of the cooling piece (243) is arranged in the second partition, so that the cooling of the water in the partition is realized.
6. The system of claim 1, wherein the system further comprises a controller configured to control the controller, A liquid level monitoring sensor (34) and a water temperature monitoring sensor (35) are also arranged in the water tank (23), The liquid level monitoring sensor (34) and the water temperature monitoring sensor (35) are respectively connected with the controller and used for emergency control when the liquid level is lower than a preset value and/or the water temperature exceeds a preset interval.
7. The constant-temperature cutting control method of the plate cutting machine is characterized by comprising the following steps of: temperature signals of the transverse cutter roller (11) and the bed knife beam (12) are collected at fixed time, and cutting force signals between the transverse cutter roller (11) and the bed knife beam (12) in the cutting process are collected at fixed time; comparing the acquired temperature signal of the transverse cutter roller (11) with a preset target temperature to obtain a first temperature deviation signal, and comparing the acquired temperature signal of the bed cutter beam (12) with the preset target temperature to obtain a second temperature deviation signal; Correspondingly controlling the water flow rate and/or the temperature in the first water circulation assembly (21) according to the first temperature deviation signal, correspondingly controlling the water flow rate and/or the temperature in the second water circulation assembly (22) according to the second temperature deviation signal, so as to adjust the temperatures of the transverse cutter roller (11) and the bottom cutter beam (12); when the cutting force signal exceeds the preset cutting force threshold value, controlling and reducing the feeding speed of the plate cutting machine by combining with preset working condition parameters; The preset target temperature is determined according to the temperature of the cut plate, and the preset target temperature corresponding to the transverse cutter roller (11) is smaller than the bed cutter beam (12).
8. The method according to claim 7, wherein the control of the water flow rate and/or the temperature in the first water circulation assembly (21) and the second water circulation assembly (22) is performed by using an adaptive energy-saving optimization logic, in particular: Acquiring current working condition parameters and environmental temperature data at regular time; Establishing a system energy consumption optimization model, wherein the system energy consumption optimization model takes the sum of energy consumption of a circulating pump and energy consumption of a temperature regulating device (24) as an objective function and takes temperature control precision as a constraint condition; according to the current working condition parameters and the environmental temperature data, solving an operation parameter combination through the system energy consumption optimization model, wherein the operation parameter combination comprises circulating pump flow and temperature regulation power; and outputting control instructions to the circulating pump and the temperature regulating device (24) according to the operation parameter combination so as to enable the circulating pump and the temperature regulating device to operate according to the operation parameter combination.
9. The method of claim 8, further comprising modifying the operating parameter combinations with adaptive fuzzy compensation logic, in particular: Acquiring current working condition parameters, wherein the working condition parameters at least comprise the type of the cutting material and the cutting speed; According to the working condition parameters, determining correction coefficients of control parameters through a preset fuzzy rule base; Applying the correction coefficient to the current operation parameter to generate a corrected operation parameter; And obtaining a control output quantity for the flow rate and/or the temperature based on the corrected operation parameter combination.
10. The method according to claim 9, further comprising an error memory correction function, in particular: recording historical temperature control deviation data under different working condition parameters, wherein the historical temperature control deviation data comprises at least one of temperature overshoot, steady-state error and response time; carrying out statistical analysis on historical temperature control deviation data under the same cutting working condition parameter to generate an optimized correction coefficient corresponding to the cutting working condition parameter; And when the same working condition parameters are identified again, taking the optimized correction coefficient as an initial correction coefficient of the adaptive fuzzy compensation logic.

Description

Constant-temperature cutting system of plate cutting machine and control method Technical Field The invention belongs to the technical field of thermostatic control of plate cutting machines, and particularly relates to a constant-temperature cutting system of a plate cutting machine and a control method. Background The plate cutting machine is a cutting device widely applied to the fields of papermaking, printing, packaging, machining and the like, and the core working parts of the plate cutting machine are a transverse cutter roller and a bottom cutter beam. In the continuous cutting process, the transverse cutting knife roller and the bottom knife cross beam can generate a large amount of heat due to continuous cutting friction, and after the heat is accumulated in the parts, the parts are caused to generate thermal expansion and cold contraction phenomena, so that irregular fluctuation of knife distance is caused, the consistency of the cutting effect is damaged, and the high-precision cutting requirement cannot be met. In the early stage, a simple circulating water cooling mode is mainly adopted to cool the cutting equipment body, for example, chinese patent CN201565663U discloses a circulating water cooling and blade water mist cooling device of the plate shearing machine body, and circulating water channels are arranged in a left wallboard, a right wallboard, an upper cutter rest and a lower cutter rest to cool the equipment body so as to ensure that the equipment has enough strength and rigidity under the high-temperature condition. The scheme adopts simple open-loop cooling control, and lacks an accurate temperature feedback and regulation mechanism. Along with the development of control technology, chinese patent CN113370310B discloses a control method of a temperature control system of a board hot cutting machine, which comprises the steps of setting a temperature detection device on a hot cutting knife, collecting a temperature signal of the hot cutting knife, and outputting a current with a corresponding magnitude to the hot cutting knife according to temperature detection information, so as to realize the adjustment of the temperature of the blade. The scheme realizes temperature feedback control, but the control object is a hot cutter, the temperature control mode is direct electric heating, the temperature is used as a control parameter, and the cutting precision is limited. In the fields of paper making and pulp board cutting, the existing scheme has the technical problems that when working conditions such as fluctuation of cutting force, change of material hardness and change of cutting speed are changed, the actual temperature and the cutter spacing of a cutting part are influenced, and precision deviation is easy to occur. In addition, the prior art can only maintain the fluctuation of water temperature within a certain range (usually more than +/-2 ℃), the actual temperature of the knife roller and the cross beam body cannot be accurately controlled, the knife distance fluctuation caused by thermal expansion and contraction is difficult to effectively inhibit, and the severe requirement of high-precision cutting cannot be met. Disclosure of Invention The invention provides a constant-temperature cutting system and a control method of a plate cutting machine, which aim to solve the problem that the precision and efficiency of the plate cutting machine are difficult to be compatible due to the disjoint of temperature control and cutting working conditions and the attenuation of temperature control precision, and realize the precise constant-temperature control of a transverse cutter roller and a bottom cutter beam, and the improvement of cutting precision. The technical scheme adopted by the invention is as follows: A guillotine cutting system comprising: the cutting execution module comprises a transverse cutter roller and a bottom cutter beam; A water circulation module comprising a first water circulation assembly for adjusting the temperature of the crosscutting knife roll and a second water circulation assembly for adjusting the temperature of the bed knife beam, The transverse cutter roller is provided with a first water circulation channel, the bed cutter beam is provided with a second water circulation channel, the first water circulation channel is connected with a first water circulation pump to form a first water circulation assembly, the second water circulation channel is connected with a second water circulation pump to form a second water circulation assembly, The water circulation module also comprises a water tank which is communicated with the first water circulation assembly and the second water circulation assembly through a flow distribution valve to realize water distribution, And a temperature adjusting device to adjust water temperatures to the first water circulation assembly and the second water circulation assembly; The system may further comprise a processor co