CN113417104B - Intelligent drying and shaping system based on non-woven fabric after-finishing - Google Patents
Intelligent drying and shaping system based on non-woven fabric after-finishing Download PDFInfo
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- CN113417104B CN113417104B CN202110563875.2A CN202110563875A CN113417104B CN 113417104 B CN113417104 B CN 113417104B CN 202110563875 A CN202110563875 A CN 202110563875A CN 113417104 B CN113417104 B CN 113417104B
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- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
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Abstract
The invention relates to an intelligent drying and shaping system based on non-woven fabric after-finishing, which comprises the following components: the box body is provided with a plurality of first water content detectors on the inner wall of the box body; a drying mechanism; the conveying mechanism comprises two mounting plates respectively arranged on two opposite side walls of the box body and a plurality of drying roller groups positioned between the two mounting plates; and the central control unit. According to the invention, the pressure sensor is arranged in the cylinder, and the tension of the cylinder to the non-woven fabric is detected in real time and the distance between the cylinder and the roller is adjusted to the corresponding value so that the tension of the cylinder and the roller to the non-woven fabric is maintained in the preset interval, so that the toughness of the dried non-woven fabric can reach the preset standard, and the drying and shaping efficiency of the system for the non-woven fabric is effectively improved; meanwhile, the air displacement of the air delivery pipe is regulated to a preset value according to the actual average water content of the non-woven fabric, so that the non-woven fabric can be dried efficiently, and the drying and shaping efficiency of the system according to the invention for the non-woven fabric is further improved.
Description
Technical Field
The invention relates to the technical field of non-woven fabric processing, in particular to an intelligent drying and shaping system based on non-woven fabric after-finishing.
Background
The manufacture of non-woven fabric refers to the manufacture of cloth-like products which are formed by using chemical fibers as basic raw materials and bonding the chemical fibers through chemical (or hot melting). Because it is not woven, it is also called nonwoven fabric, and the high polymer slices, short fibers or filaments are directly used to make the fibers pass through air flow or mechanical net, then through water needling, needle punching or hot rolling to make reinforcement, and finally through after-finishing to form the non-woven fabric. However, a non-woven finishing process is required after the non-woven manufacture to enable the non-woven semi-finished product to have better strength, so that the non-woven finished product cannot deform in the later use. But traditional drying and shaping device for finishing non-woven fabrics has simple structure, and the non-woven fabrics are directly wound on the cylinder, and the coating rate is only about 50%, and the fan for exhausting steam is positioned below and directly blows through the exhaust pipe, so that the drying efficiency of the non-woven fabrics is very low.
Meanwhile, because the tension to the non-woven fabric cannot be adjusted in the non-woven fabric drying process in the prior art, the dried non-woven fabric does not have toughness meeting the requirements, and the drying and shaping efficiency of the non-woven fabric in the prior art is poor.
Disclosure of Invention
Therefore, the invention provides an intelligent drying and shaping system based on non-woven fabric after-finishing, which is used for solving the problem that the drying and shaping efficiency of non-woven fabric is poor due to the fact that the tension of the non-woven fabric cannot be adjusted in the prior art.
In order to achieve the above purpose, the present invention provides an intelligent drying and shaping system based on non-woven fabric after-finishing, comprising:
the non-woven fabrics to be dried enter the inside of the box body through the feed inlet and move to the outside of the box body through the discharge port after the drying is finished when the system operates; a plurality of first water content detectors are arranged on the inner wall of the box body and are used for detecting the water content of one side of the non-woven fabric far away from the cylinder;
the drying mechanism comprises air delivery pipes arranged on the top plate and the bottom plate of the box body, one end of each air delivery pipe is provided with a plurality of branch pipes, each branch pipe penetrates through the box body, and the end parts of each branch pipe are positioned in the box body and used for delivering hot steam into the box body;
the conveying mechanism comprises two mounting plates respectively arranged on two opposite side walls of the box body and a plurality of drying roller groups positioned between the two mounting plates; the two mounting plates are arranged in parallel, and the rotating shafts of the guide rollers and the rollers in the drying roller set are perpendicular to the mounting plates;
for a single drying roller set, comprising a cylinder and two rollers arranged at two sides of the cylinder, the cylinder can vertically move along the mounting plate to loosen or tighten the non-woven fabric; the outer surface of the cylinder is provided with a reticular layer for conveying the gas output by the exhaust branch pipe, and a plurality of pressure sensors are uniformly arranged in the reticular layer and used for detecting the pressure applied by the non-woven fabric to the reticular layer; a plurality of second water content detectors are uniformly arranged in the reticular layer and are used for detecting the water content of one side of the non-woven fabric close to the cylinder;
The central control unit is respectively connected with the first water content detector, the cylinder, the pressure sensor and the second water content detector and is used for adjusting the operation parameters of all the components when the system is in operation so as to adjust the average water content and the toughness of the non-woven fabric within a preset interval;
the central control unit is provided with a preset pressure interval F0 and a preset average water content interval W0, when the system is in operation, the central control unit controls each pressure sensor to detect the pressure F applied by the non-woven fabric to a single cylinder and controls a corresponding first water content detector and a second water content detector on the cylinder to sequentially detect the water content on two sides of the non-woven fabric to calculate the average humidity W of the non-woven fabric covered on the cylinder, the central control unit sequentially judges whether F belongs to F0 and W belongs to W0 after F is detected and W is obtained,
if F epsilon F0 and W epsilon W0, the central control unit judges that the system is normal in operation;
if it is
And W epsilon W0, the central control unit judges that the toughness of the dried non-woven fabric does not meet the standard, and the central control unit calculates a pressure difference delta F and controls the cylinder to move vertically according to the actual value of delta F;
if F is E F0 and
the central control unit judges that the system cannot dry the non-woven fabric to a preset standard, calculates an average humidity difference delta W and adjusts the exhaust amount of the gas transmission pipe according to the actual value of delta W;
If it is
And->
The central control unit judges that the operation parameters of the components in the system can not finish drying or shaping the non-woven fabrics, calculates an average humidity difference delta W, adjusts the exhaust amount of the air delivery pipe according to the actual value of delta W, calculates a pressure difference delta F when the average humidity W 'epsilon W0 of the non-woven fabrics in the preset time period after adjustment, and controls the cylinder to vertically move according to the actual value of delta F so as to enable the non-woven fabrics to apply the pressure F' epsilon F0 to the cylinder in the preset time period after adjustment.
Further, for the preset pressure interval F0, setting F0 (Fmin, fmax), where Fmin is a preset minimum pressure, fmax is a preset maximum pressure, when the central control unit controls the corresponding pressure sensor to detect the pressure F applied by the nonwoven fabric to the single cylinder and determine that
When the pressure difference DeltaF is calculated by the central control unit, if F is larger than Fmax, the central control unit judges that the non-woven fabric is damaged in the drying process and sets DeltaF=F-Fmax, and if F is smaller than Fmin, the central control unit judges that the toughness of the non-woven fabric after drying can not reach a preset standard and sets DeltaF=fmin-F;
the central control unit is also provided with a first preset pressure difference delta F1, a second preset pressure difference delta F2, a first preset distance adjustment coefficient a1, a second preset distance adjustment coefficient a2 and a third preset distance adjustment coefficient a3, wherein delta F1 is less than delta F2, and 0 < a1 < a2 < a3 < 0.6;
When the central control unit finishes the calculation of the pressure difference delta F, the central control unit sequentially compares delta F with each preset pressure difference,
if the delta F is less than or equal to delta F1, the central control unit selects a first preset distance adjustment coefficient a1 to adjust the vertical distance between the cylinder and the rollers belonging to the same group with the cylinder;
if DeltaF 1 < DeltaF2 is less than or equal to DeltaF 2, the central control unit adjusts the vertical distance between the cylinder and the rollers belonging to the same group with the cylinder by using a second preset distance adjustment coefficient a 2;
if DeltaF > DeltaF2, the central control unit selects a third preset distance adjustment coefficient a3 to adjust the vertical distance between the cylinder and the rollers belonging to the same group with the cylinder;
when the central control unit selects the i preset distance adjustment coefficient ai to adjust the vertical distance between the cylinder and the rollers belonging to the same group with the cylinder, setting i=1, 2 and 3, marking the adjusted vertical distance between the cylinder and the corresponding roller as D ', if F is larger than Fmax, setting D ' =D× (1-ai) by the central control unit, and setting D ' =D× (1+ai) by the central control unit if F is smaller than Fmin, wherein D is the initial vertical distance between the cylinder and the corresponding roller;
when the central control unit completes the vertical distance between the cylinder and the corresponding roller, the central control unit re-detects the pressure F 'applied by the non-woven fabric to the cylinder when the adjusted time length reaches the preset detection time length t0, if F' E F0, the central control unit judges that the adjustment is completed, if 
The central control unit readjusts the vertical distance between the cylinder and the corresponding roller until the pressure F'. Epsilon.F0 applied by the nonwoven fabric to the cylinder after adjustment. />
Further, valves connected with the central control unit are arranged in the air delivery pipes and used for adjusting the flow of hot steam entering the box body; setting W0 (Wmin, wmax) for the preset average water content interval W0, wherein Wmin is a preset minimum average water content and Wmax is a preset maximum average water content;
when the central control unit controls the corresponding first water content detector and the corresponding second water content detector on the cylinder to sequentially detect the water content at two sides of the non-woven fabric so as to calculate the average humidity W of the non-woven fabric covered on the cylinder and judge
If W is more than Wmax, the central control unit judges that the non-woven fabric is not dried and sets DeltaW=W-Wmax, and if W is less than Wmin, the central control unit judges that the water content of the non-woven fabric is too low and sets DeltaW=Wmin-W;
the central control unit is also provided with a first preset water content difference delta W1, a first valve opening adjustment coefficient b1 and a second valve opening adjustment coefficient b2, and the setting is that b1 is more than 0 and b2 is less than 0.5; when the central control unit finishes calculating the water content difference value delta W, the central control unit compares delta W with delta W1, if delta W is less than or equal to delta W1, the central control unit uses the first valve opening adjustment coefficient b1 to adjust the opening of each valve, and if delta W is > -delta W1, the central control unit uses the second valve opening adjustment coefficient b2 to adjust the opening of each valve;
When the central control unit adjusts the opening of each valve by using the j-th valve opening adjustment coefficient bj, if W is greater than Wmax, the central control unit sets the adjusted valve opening K '=k× (1.5+bj), where K is the initial opening of each valve, and if W is less than Wmin, the central control unit sets the adjusted valve opening K' =k× (0.8-bj);
when the central controlWhen the unit finishes the adjustment of the opening of each valve, the central control unit re-detects the average water content W 'of the non-woven fabric when the adjusted time length reaches the preset detection time length t0, if W' epsilon W0, the central control unit judges that the adjustment is finished, if
The central control unit readjusts the opening degree of each valve until the average water content W'. Epsilon.W 0 of the regulated non-woven fabric.
Further, a preset maximum moving distance Dmax is also arranged in the central control unit; when the central control unit adjusts the vertical movement of a single cylinder, the central control unit counts the distance Da between the position of the cylinder after the movement and the initial position and compares the distance Da with the distance Dmax, if Da is less than or equal to Dmax, the central control unit does not adjust the position of the cylinder adjacent to the cylinder, if Da is more than Dmax, the central control unit judges that the cylinder cannot be moved to a designated position, the central control unit sets the movement distance of the cylinder as Dmax and adjusts the position of the cylinder adjacent to the cylinder, if the vertical distance between the cylinder and the adjacent cylinder after adjustment is increased, the central control unit controls the adjacent cylinder to move in the direction away from the cylinder and sets the movement distance as Da-Dmax, and if the vertical distance between the cylinder and the adjacent cylinder after adjustment is reduced, the central control unit controls the adjacent cylinder to move in the direction close to the cylinder and sets the movement distance as Da-Dmax.
Further, a preset maximum cylinder spacing Lmax and a preset minimum cylinder spacing Lmin are also arranged in the central control unit;
when the central control unit adjusts the position of a single cylinder or adjusts a single cylinder and a cylinder adjacent to the single cylinder, the central control unit counts the vertical distance L between the cylinder and the adjacent cylinder and compares L with Lmax and Lmin respectively,
if L is less than or equal to Lmin, the central control unit sets the vertical distance between the cylinder and the cylinder adjacent to the cylinder as Lmin and reduces the opening of each valve;
if Lmin is less than L and less than or equal to Lmax, the central control unit does not adjust the vertical distance between the cylinder and the cylinder adjacent to the cylinder;
if L > Lmax, the central control unit sets the vertical distance between the cylinder and the adjacent cylinder as Lmax and increases the opening degree of each valve.
Further, a plurality of air outlet holes are formed in the side wall of the cylinder, a fan is arranged in the cylinder, and the center line of the fan is overlapped with the rotating shaft of the cylinder; an exhaust pipe is arranged at the output end of the fan, a plurality of exhaust branch pipes are arranged at one end of the exhaust pipe far away from the fan, and the end parts of the exhaust branch pipes are connected with the corresponding air outlet holes and are used for conveying the air output by the fan to the outside of the cylinder; the central control unit is connected with the fan and used for adjusting the running power of the fan;
When the central control unit calculates the average water content of the non-woven fabric on the single cylinder, the central control unit detects the water content Wa of the non-woven fabric on the side far away from the cylinder by using the corresponding first water content detector, detects the water content Wb of the non-woven fabric on the side close to the cylinder by using the second water content detector on the cylinder, and after the detection is finished, the central control unit marks the average water content of the non-woven fabric on the single cylinder as W, and sets W=1/2 (Wa+Wb).
Further, the central control unit is also provided with a first preset water content difference Deltaw 1, a second preset water content difference Deltaw 2, a first preset fan power adjustment coefficient c1 and a second preset fan power adjustment coefficient c2, and Deltaw 1 < Deltaw2, and 0 < c1 < c2 < 0.3;
when the central control unit calculates the average water content of the non-woven fabrics on the single cylinder, the central control unit compares Wa with Wb and calculates an internal and external water content difference value Deltaw after the comparison is completed, if Wa is more than Wb, the central control unit sets Deltaw=Wa-Wb, and if Wa is less than Wb, the central control unit sets Deltaw=Wb-Wa; after the calculation is completed, the central control unit compares Deltaw with Deltaw 1 and Deltaw 2 in sequence,
if Deltaw is less than or equal to Deltaw 1, the central control unit does not adjust the running power of the fan in the cylinder;
If Deltaw 1 < Deltaw2 is less than or equal to Deltaw 2, the central control unit uses the first preset fan power adjustment coefficient c1 to adjust the running power of the fan in the cylinder;
if Deltaw > Deltaw2, the central control unit uses the second preset fan power adjustment coefficient c2 to adjust the running power of the fan in the cylinder;
when the central control unit uses the k preset fan power adjustment coefficient ck to adjust the running power of the fan in the cylinder, k=1, 2 is set, the running power of the fan after adjustment is recorded as P',
when Wa > Wb, P' =p× (1+ck) is set;
when Wa < Wb, P' =p× (1-ck) is set.
Further, the central control unit is also provided with a preset maximum opening Kmax and a preset minimum opening Kmin, when the central control unit completes the adjustment of the opening of each valve, the central control unit sequentially compares the opening K' of the valve after adjustment with Kmax and Kmin,
if K' is less than or equal to Kmin, the central control unit sets the opening degree of each valve to Kmin and increases the rotation speed V of each cylinder;
if Kmin is less than K 'and less than or equal to Kmax, the central control unit sets the opening degree of each valve to K' and does not adjust the rotation speed V of each cylinder;
if K' > Kmax, the central control unit sets the opening degree of each valve to Kmax and reduces the rotation speed V of each cylinder.
Further, guide rollers are arranged in the feed inlet and the discharge outlet, and the conveying mechanism further comprises two flattening rollers which are respectively positioned between the two mounting plates and are respectively arranged at the feed inlet and the discharge outlet;
further, cooling fins are arranged at the end parts of the branch pipes, which are positioned in the box body, and heat conducting oil is arranged in each cooling fin and used for absorbing heat in the hot steam so as to dry the non-woven fabrics in the box body.
Compared with the prior art, the invention has the beneficial effects that the pressure sensor connected with the central control unit is arranged in the cylinder, the tension of the cylinder and the roller on the non-woven fabric is obtained by detecting the pressure of the non-woven fabric on the cylinder, the tension of the cylinder on the non-woven fabric is detected in real time, the distance between the cylinder and the roller is regulated to the corresponding value, so that the tension of the cylinder and the roller on the non-woven fabric is maintained in the preset interval, the toughness of the dried non-woven fabric can reach the preset standard, and the drying and shaping efficiency of the system for the non-woven fabric is effectively improved; meanwhile, the air displacement of the air delivery pipe is regulated to the preset value according to the actual average water content of the non-woven fabric, and the non-woven fabric can be dried efficiently, so that the drying and shaping efficiency of the system according to the invention for the non-woven fabric is further improved.
Further, the central control unit is also provided with a first preset pressure difference delta F1, a second preset pressure difference delta F2, a first preset distance adjustment coefficient a1, a second preset distance adjustment coefficient a2 and a third preset distance adjustment coefficient a3, when
When the central control unit judges that the toughness of the dried non-woven fabric does not meet the standard, the central control unit calculates a pressure difference delta F, compares the delta F with each preset pressure difference in sequence, and adjusts the vertical distance between the cylinder and the roller belonging to the same group according to the comparison result by selecting a corresponding preset distance adjustment coefficient.
Further, the central control unit is also provided with a first preset water content difference DeltaW 1, a first valve opening adjustment coefficient b1 and a second valve opening adjustment coefficient b2, when
When the central control unit judges that the non-woven fabrics cannot be dried to a preset standard, the central control unit calculates an average humidity difference delta W, compares delta W with delta W1 and adjusts the opening of the valve in each gas pipe according to the comparison result, and the water content of the non-woven fabrics can be maintained in a preset section by adjusting the opening of the valve to a corresponding value to adjust the heat quantity conveyed into the box body, thereby The situation that the non-woven fabric does not meet the standard after being dried due to the fact that the water content of the non-woven fabric is too high or too low is effectively avoided, and accordingly the drying and shaping efficiency of the system for the non-woven fabric is further improved.
Further, a preset maximum moving distance Dmax is further provided in the central control unit, when the central control unit adjusts the single cylinder to vertically move, the central control unit counts the distance Da between the moved position of the cylinder and the initial position, compares Da with Dmax, judges whether the position of the cylinder adjacent to the cylinder needs to be adjusted according to the comparison result, and can ensure that the tension of the cylinder to the non-woven fabric is adjusted to a preset value by moving the cylinder adjacent to the cylinder when the single cylinder cannot continuously move, so that the condition that the non-woven fabric is damaged or the toughness does not reach the standard due to the fact that the moving distance is higher than or lower than the expected value is further avoided, and meanwhile, the drying and shaping efficiency of the system for the non-woven fabric is further improved.
Further, a preset maximum cylinder spacing Lmax and a preset minimum cylinder spacing Lmin are further arranged in the central control unit, when the central control unit adjusts the position of a single cylinder or adjusts the single cylinder and the cylinders adjacent to the single cylinder, the central control unit counts the vertical distance L between the single cylinder and the adjacent cylinders and compares L with Lmax and Lmin respectively, and adjusts the spacing between the two cylinders or adjusts the opening of a valve according to the comparison result, and by setting the maximum spacing and the minimum spacing, the situation that the moisture content of the non-woven fabric is too low or too high caused by too long or too short non-woven fabric between the two cylinders can be effectively avoided, and the drying and shaping efficiency of the non-woven fabric is further improved.
Further, when the central control unit calculates the average water content of the non-woven fabrics on the single cylinder, the central control unit compares Wa with Wb, calculates the difference delta w of the water content inside and outside after the comparison is finished, and adjusts the running power of the fan to a corresponding value according to the actual value of delta w, and the running power of the fan is adjusted, so that the drying efficiency of the fan on one side of the non-woven fabrics close to the cylinder and the drying efficiency of the air pipe on one side of the non-woven fabrics far away from the cylinder are maintained in a similar state, thereby effectively avoiding the condition that the quality of the dried non-woven fabrics does not reach standards due to overlarge deviation of the water content on both sides of the non-woven fabrics, and further improving the drying and shaping efficiency of the system for the non-woven fabrics.
Further, a preset maximum opening Kmax and a preset minimum opening Kmin are further arranged in the central control unit, when the central control unit completes the adjustment of the opening of each valve, the central control unit sequentially compares the opening K' of the valve after adjustment with Kmax and Kmin, adjusts the rotating speed of each cylinder according to the comparison result, and can further improve the drying efficiency of the system on the non-woven fabrics and further improve the drying and shaping efficiency of the system on the non-woven fabrics by adjusting the conveying speed of the non-woven fabrics when the opening of the valve reaches a critical value.
Drawings
FIG. 1 is a schematic diagram of a structure of an intelligent drying and shaping system based on non-woven fabric after-finishing;
FIG. 2 is a cross-sectional view of FIG. 1 at A-A;
FIG. 3 is a side cross-sectional view of a cylinder according to the present invention;
fig. 4 is a cross-sectional view of fig. 3 at B-B.
Detailed Description
In order that the objects and advantages of the invention will become more apparent, the invention will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that, in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
Fig. 1 and fig. 2 show a schematic structural diagram of an intelligent drying and shaping system based on a non-woven fabric after-finishing according to the present invention and a sectional view of fig. 1 at A-A, respectively. The intelligent drying and shaping system based on non-woven fabric after-finishing comprises:
the non-woven fabric to be dried enters the inside of the box body 1 through the feed inlet 2 and moves to the outside of the box body 1 through the discharge outlet 3 after the drying is finished when the system operates; a plurality of first water content detectors (not shown) are provided on the inner wall of the case 1 for detecting the water content of the nonwoven fabric on the side far from the cylinder 6.
The drying mechanism comprises a gas pipe 9 arranged on the top plate and the bottom plate of the box body 1, wherein one end of the single gas pipe 9 is provided with a plurality of branch pipes, each branch pipe penetrates through the box body 1, and the end parts of each branch pipe are located inside the box body 1 and used for conveying hot steam into the box body 1.
The conveying mechanism comprises two mounting plates 10 respectively arranged on two opposite side walls of the box body 1 and a plurality of drying roller groups positioned between the two mounting plates 10; the two mounting plates 10 are arranged in parallel, and the rotating shafts of the guide roller 4 and each roller in the drying roller set are perpendicular to the mounting plates 10.
For a single drying roller set, comprising a cylinder 6 and two rollers 7 arranged at both sides of the cylinder 6, the cylinder 6 can move vertically along the mounting plate 10 to loosen or tighten the non-woven fabric; a mesh layer 15 is arranged on the outer surface of the cylinder 6 and used for conveying the gas output by the exhaust branch pipe 14, and a plurality of pressure sensors (not shown in the figure) are uniformly arranged in the mesh layer 15 and used for detecting the pressure applied by the non-woven fabric to the mesh layer 15; a plurality of second moisture content detectors (not shown) are also uniformly arranged in the mesh layer 15 for detecting the moisture content of the nonwoven fabric on the side close to the cylinder 6.
And the central control unit (not shown in the figure) is respectively connected with the first water content detector, the cylinder 6, the pressure sensor and the second water content detector and is used for adjusting the operation parameters of each component when the system is operated so as to adjust the average water content and toughness of the non-woven fabric within preset intervals.
With continued reference to fig. 1, guide rollers 4 are disposed in the feed inlet 2 and the discharge outlet 3, and the conveying mechanism further includes two flattening rollers 5 respectively disposed between the two mounting plates 10 and respectively disposed at the feed inlet 2 and the discharge outlet 3;
with continued reference to fig. 1, the end portion of each branch pipe located inside the box 1 is provided with a heat sink 8, and each heat sink 8 is provided with heat conducting oil for absorbing heat in the hot steam to dry the non-woven fabrics inside the box 1.
Reference is made to fig. 3 and 4, which are respectively a side sectional view of the cylinder 6 according to the invention and a sectional view at B-B of fig. 3. The side wall of the cylinder 6 is provided with a plurality of air outlets 11, a fan 12 is arranged in the cylinder 6, and the center line of the fan 12 is overlapped with the rotating shaft of the cylinder 6; an exhaust pipe 13 is arranged at the output end of the fan 12, a plurality of exhaust branch pipes 14 are arranged at one end, far away from the fan 12, of the exhaust pipe 13, and the end parts of the exhaust branch pipes 14 are connected with the corresponding air outlet holes 11 so as to convey the air output by the fan 12 to the outside of the cylinder 6; the central control unit is connected with the fan 12 and is used for adjusting the running power of the fan 12;
specifically, a preset pressure interval F0 and a preset average water content interval W0 are set in the central control unit, when the system is running, the central control unit controls each pressure sensor to detect the pressure F applied by the non-woven fabric to a single cylinder 6 and controls the corresponding first water content detector and the second water content detector on the cylinder 6 to sequentially detect the water content at two sides of the non-woven fabric to calculate the average humidity W of the non-woven fabric covered on the cylinder 6, the central control unit sequentially judges whether F belongs to F0 and whether W belongs to W0 after detecting F and obtaining W,
If F epsilon F0 and W epsilon W0, the central control unit judges that the system is normal in operation;
if it is
And W epsilon W0, the central control unit judges that the toughness of the dried non-woven fabric does not meet the standard, and the central control unit calculates a pressure difference delta F and controls the cylinder 6 to move vertically according to the actual value of delta F;
if F is E F0 and
the central control unit judges that the system cannot dry the non-woven fabrics to a preset standard, calculates an average humidity difference delta W and adjusts the exhaust amount of the air delivery pipe 9 according to the actual value of delta W;
if it is
And->
The central control unit judges that the operation parameters of the components in the system can not finish drying or shaping the non-woven fabrics, calculates an average humidity difference delta W, adjusts the exhaust amount of the air delivery pipe 9 according to the actual value of delta W, calculates a pressure difference delta F when the average humidity W 'E W0 of the non-woven fabrics in the preset time period after adjustment, and controls the cylinder 6 to vertically move according to the actual value of delta F so as to enable the pressure F' E F0 applied by the non-woven fabrics to the cylinder 6 in the preset time period after adjustment.
According to the invention, the pressure sensor connected with the central control unit is arranged in the cylinder 6, the tension of the cylinder 6 and the roller on the non-woven fabric is obtained by detecting the pressure applied by the non-woven fabric to the cylinder 6, the tension of the cylinder 6 on the non-woven fabric is detected in real time, and the distance between the cylinder 6 and the roller is adjusted to a corresponding value so as to maintain the tension of the cylinder 6 and the roller on the non-woven fabric in a preset interval, so that the toughness of the dried non-woven fabric can reach a preset standard, and the drying and shaping efficiency of the system for the non-woven fabric is effectively improved; meanwhile, the air displacement of the air delivery pipe 9 is regulated to the preset value according to the actual average water content of the non-woven fabric, so that the non-woven fabric can be dried efficiently, and the drying and shaping efficiency of the system according to the invention for the non-woven fabric is further improved.
Specifically, for the preset pressure interval F0, F0 (Fmin, fmax) is set, where Fmin is a preset minimum pressure, fmax is a preset maximum pressure, and when the central control unit controls the corresponding pressure sensor to detect the pressure F applied by the nonwoven fabric to the single cylinder 6 and determine that
When the pressure difference DeltaF is calculated by the central control unit, if F is larger than Fmax, the central control unit judges that the non-woven fabric is damaged in the drying process and sets DeltaF=F-Fmax, and if F is smaller than Fmin, the central control unit judges that the toughness of the non-woven fabric after drying can not reach a preset standard and sets DeltaF=fmin-F;
the central control unit is also provided with a first preset pressure difference delta F1, a second preset pressure difference delta F2, a first preset distance adjustment coefficient a1, a second preset distance adjustment coefficient a2 and a third preset distance adjustment coefficient a3, wherein delta F1 is less than delta F2, and 0 < a1 < a2 < a3 < 0.6;
when the central control unit finishes the calculation of the pressure difference delta F, the central control unit sequentially compares delta F with each preset pressure difference,
if DeltaF is less than or equal to DeltaF 1, the central control unit adjusts the vertical distance between the cylinder 6 and the rollers 7 belonging to the same group as the cylinder 6 by using a first preset distance adjustment coefficient a 1;
If DeltaF 1 < DeltaF2 is less than or equal to DeltaF 2, the central control unit adjusts the vertical distance between the cylinder 6 and the rollers 7 belonging to the same group as the cylinder 6 by using a second preset distance adjustment coefficient a 2;
if DeltaF > DeltaF2, the central control unit adjusts the vertical distance between the cylinder 6 and the rollers 7 belonging to the same group as the cylinder 6 by using a third preset distance adjustment coefficient a 3;
when the central control unit selects the i preset distance adjustment coefficient ai to adjust the vertical distance between the cylinder 6 and the rollers 7 belonging to the same group as the cylinder 6, setting i=1, 2 and 3, recording the adjusted vertical distance between the cylinder 6 and the corresponding rollers 7 as D ', setting D ' =Dx (1-ai) by the central control unit if F > Fmax, and setting D ' =Dx (1+ai) by the central control unit if F < Fmin, wherein D is the initial vertical distance between the cylinder 6 and the corresponding rollers 7;
when the central control unit completes the vertical distance between the cylinder 6 and the corresponding roller 7, the central control unit re-detects the pressure F 'applied by the non-woven fabric to the cylinder 6 when the adjusted time length reaches the preset detection time length t0, if F' is E F0, the central control unit judges that the adjustment is completed, if
The central control unit readjusts the vertical distance between the cylinder 6 and the corresponding roller 7 until the pressure F "∈f0 exerted by the nonwoven on the cylinder 6 after adjustment.
According to the invention, the cylinder 6 is moved by the corresponding distance according to the actual difference between the actual pressure received by the cylinder 6 and the preset pressure interval critical value, so that the situation that the non-woven fabric is damaged or the toughness is not up to the standard caused by the too large or too small moving distance can be effectively avoided, and the drying and shaping efficiency of the system for the non-woven fabric is further improved.
Specifically, valves connected with the central control unit are arranged in each gas pipe 9 and used for adjusting the flow of hot steam entering the box body 1; setting W0 (Wmin, wmax) for the preset average water content interval W0, wherein Wmin is a preset minimum average water content and Wmax is a preset maximum average water content;
when the central control unit controls the corresponding first water content detector and the corresponding second water content detector on the cylinder 6 to sequentially detect the water content of the two sides of the non-woven fabric so as to calculate the average humidity W of the non-woven fabric covered on the cylinder 6 and determine
If W is more than Wmax, the central control unit judges that the non-woven fabric is not dried and sets DeltaW=W-Wmax, and if W is less than Wmin, the central control unit judges that the water content of the non-woven fabric is too low and sets DeltaW=Wmin-W;
the central control unit is also provided with a first preset water content difference delta W1, a first valve opening adjustment coefficient b1 and a second valve opening adjustment coefficient b2, and the setting is that b1 is more than 0 and b2 is less than 0.5; when the central control unit finishes calculating the water content difference value delta W, the central control unit compares delta W with delta W1, if delta W is less than or equal to delta W1, the central control unit uses the first valve opening adjustment coefficient b1 to adjust the opening of each valve, and if delta W is > -delta W1, the central control unit uses the second valve opening adjustment coefficient b2 to adjust the opening of each valve;
When the central control unit adjusts the opening of each valve by using the j-th valve opening adjustment coefficient bj, if W is greater than Wmax, the central control unit sets the adjusted valve opening K '=k× (1.5+bj), where K is the initial opening of each valve, and if W is less than Wmin, the central control unit sets the adjusted valve opening K' =k× (0.8-bj);
when the central control unit finishes the adjustment of the opening of each valve, the central control unit re-detects the average water content W 'of the non-woven fabric when the adjusted time length reaches the preset detection time length t0, if W' is E W0, the central control unit judges that the adjustment is finished, if
The central control unit readjusts the opening degree of each valve until the average water content W'. Epsilon.W 0 of the regulated non-woven fabric.
According to the invention, the valve opening is adjusted to the corresponding value to adjust the heat transmitted into the box body 1, so that the water content of the non-woven fabric can be maintained in the preset interval, and the situation that the non-woven fabric does not meet the standard after drying caused by the too high or too low water content of the non-woven fabric is effectively avoided, so that the drying and shaping efficiency of the system for the non-woven fabric is further improved.
Specifically, a preset maximum moving distance Dmax is also arranged in the central control unit; when the central control unit adjusts the vertical movement of a single cylinder 6, the central control unit counts the distance Da between the moved position of the cylinder 6 and the initial position and compares Da with Dmax, if Da is less than or equal to Dmax, the central control unit does not adjust the position of the cylinder 6 adjacent to the cylinder 6, if Da is more than Dmax, the central control unit judges that the cylinder 6 cannot be moved to a designated position, the central control unit sets the moving distance of the cylinder 6 as Dmax and adjusts the position of the cylinder 6 adjacent to the cylinder 6, if the vertical distance between the adjusted cylinder 6 and the adjacent cylinder 6 is increased, the central control unit controls the adjacent cylinder 6 to move in the direction away from the cylinder 6 and sets the moving distance as Da-Dmax, and if the vertical distance between the adjusted cylinder 6 and the adjacent cylinder 6 is reduced, the central control unit controls the adjacent cylinder 6 to move in the direction close to the cylinder 6 and sets the moving distance as Da-Dmax.
According to the invention, by moving the cylinder 6 adjacent to the cylinder 6 when the single cylinder 6 cannot move continuously, the tension of the cylinder 6 on the non-woven fabric can be regulated to the preset value, so that the situation that the non-woven fabric is damaged or the toughness does not reach the standard due to the fact that the moving distance is higher or lower than the expected value is further avoided, and meanwhile, the drying and shaping efficiency of the system for the non-woven fabric is further improved.
Specifically, the central control unit is also provided with a preset maximum cylinder 6 spacing Lmax and a preset minimum cylinder 6 spacing Lmin;
when the central control unit adjusts the position of a single cylinder 6 or adjusts a single cylinder 6 and a cylinder 6 adjacent to the cylinder 6, the central control unit counts the vertical distance L between the cylinder 6 and the adjacent cylinder 6 and compares L with Lmax and Lmin respectively,
if L is less than or equal to Lmin, the central control unit sets the vertical distance between the cylinder 6 and the cylinder 6 adjacent to the central control unit as Lmin and reduces the opening of each valve;
if Lmin is less than L and less than or equal to Lmax, the central control unit does not adjust the vertical distance between the cylinder 6 and the cylinder 6 adjacent to the central control unit;
if L > Lmax, the central control unit sets the vertical distance between the cylinder 6 and the adjacent cylinder 6 to Lmax and increases the opening degree of each valve.
By setting the maximum interval and the minimum interval, the invention can effectively avoid the situation that the moisture content of the non-woven fabric is too low or too high caused by too long or too short of the non-woven fabric between the two cylinders 6, and further improves the drying and shaping efficiency of the system for the non-woven fabric.
Specifically, when the central control unit calculates the average moisture content of the nonwoven fabric located on the single cylinder 6 according to the present invention, the central control unit detects the moisture content Wa on the side of the nonwoven fabric away from the cylinder 6 using the corresponding first moisture content detector and detects the moisture content Wb on the side of the nonwoven fabric close to the cylinder 6 using the second moisture content detector located on the cylinder 6, and after the detection is completed, the central control unit marks the average moisture content of the nonwoven fabric located on the single cylinder 6 as W, setting w=1/2 (wa+wb).
The central control unit is also provided with a first preset water content difference Deltaw 1, a second preset water content difference Deltaw 2, a first preset fan 12 power adjustment coefficient c1 and a second preset fan 12 power adjustment coefficient c2, and Deltaw 1 < Deltaw2, and 0 < c1 < c2 < 0.3;
when the central control unit calculates the average water content of the non-woven fabrics on the single cylinder 6, the central control unit compares Wa with Wb and calculates an internal and external water content difference value Deltaw after the comparison is completed, if Wa > Wb, the central control unit sets Deltaw=wa-Wb, and if Wa < Wb, the central control unit sets Deltaw=wb-Wa; after the calculation is completed, the central control unit compares Deltaw with Deltaw 1 and Deltaw 2 in sequence,
If Deltaw is less than or equal to Deltaw 1, the central control unit does not adjust the running power of the fan 12 in the cylinder 6;
if Deltaw 1 < Deltawis less than or equal to Deltaw 2, the central control unit uses the power adjustment coefficient c1 of the first preset fan 12 to adjust the running power of the fan 12 in the cylinder 6;
if Deltaw > Deltaw2, the central control unit uses the second preset fan 12 power adjustment coefficient c2 to adjust the running power of the fan 12 in the cylinder 6;
when the central control unit uses the k preset fan 12 power adjustment coefficient ck to adjust the operation power of the fan 12 in the cylinder 6, k=1, 2 is set, the operation power of the adjusted fan 12 is recorded as P',
when Wa > Wb, P' =p× (1+ck) is set;
when Wa < Wb, P' =p× (1-ck) is set.
According to the invention, the operation power of the fan 12 is regulated, so that the drying efficiency of the fan 12 on one side of the non-woven fabric close to the cylinder 6 and the drying efficiency of the air pipe 9 on one side of the non-woven fabric far away from the cylinder 6 are maintained in similar states, thereby effectively avoiding the situation that the quality of the dried non-woven fabric does not reach the standard after drying caused by overlarge deviation of the water content on two sides of the non-woven fabric, and further improving the drying and shaping efficiency of the system for the non-woven fabric.
Specifically, the central control unit is also provided with a preset maximum opening Kmax and a preset minimum opening Kmin, when the central control unit completes the adjustment of the opening of each valve, the central control unit sequentially compares the opening K' of the valve after adjustment with Kmax and Kmin,
If K' is less than or equal to Kmin, the central control unit sets the opening degree of each valve to Kmin and increases the rotation speed V of each cylinder 6;
if Kmin is less than K 'and less than or equal to Kmax, the central control unit sets the opening degree of each valve to K' and does not adjust the rotation speed V of each cylinder 6;
if K' > Kmax, the central control unit sets the opening of each valve to Kmax and reduces the rotational speed V of each cylinder 6.
According to the invention, the conveying speed of the non-woven fabric is regulated when the opening of the valve reaches the critical value, so that the drying efficiency of the system on the non-woven fabric can be further improved, and the drying and shaping efficiency of the system on the non-woven fabric can be further improved.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.
The foregoing description is only of the preferred embodiments of the invention and is not intended to limit the invention; various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. Intelligent stoving design system based on non-woven fabrics after-arrangement, its characterized in that includes:
the non-woven fabrics to be dried enter the inside of the box body through the feed inlet and move to the outside of the box body through the discharge port after the drying is finished when the system operates; a plurality of first water content detectors are arranged on the inner wall of the box body and are used for detecting the water content of one side of the non-woven fabric far away from the cylinder;
the drying mechanism comprises air delivery pipes arranged on the top plate and the bottom plate of the box body, one end of each air delivery pipe is provided with a plurality of branch pipes, each branch pipe penetrates through the box body, and the end parts of each branch pipe are positioned in the box body and used for delivering hot steam into the box body;
the conveying mechanism comprises two mounting plates respectively arranged on two opposite side walls of the box body and a plurality of drying roller groups positioned between the two mounting plates; the two mounting plates are arranged in parallel, and the rotating shafts of the guide rollers and the rollers in the drying roller set are perpendicular to the mounting plates;
for a single drying roller set, comprising a cylinder and two rollers arranged at two sides of the cylinder, the cylinder can vertically move along the mounting plate to loosen or tighten the non-woven fabric; the outer surface of the cylinder is provided with a reticular layer for conveying the gas output by the exhaust branch pipe, and a plurality of pressure sensors are uniformly arranged in the reticular layer and used for detecting the pressure applied by the non-woven fabric to the reticular layer; a plurality of second water content detectors are uniformly arranged in the reticular layer and are used for detecting the water content of one side of the non-woven fabric close to the cylinder;
The central control unit is respectively connected with the first water content detector, the cylinder, the pressure sensor and the second water content detector and is used for adjusting the operation parameters of all the components when the system is in operation so as to adjust the average water content and the toughness of the non-woven fabric within a preset interval;
the central control unit is provided with a preset pressure interval F0 and a preset average water content interval W0, when the system is in operation, the central control unit controls each pressure sensor to detect the pressure F applied by the non-woven fabric to a single cylinder and controls a corresponding first water content detector and a second water content detector on the cylinder to sequentially detect the water content on two sides of the non-woven fabric to calculate the average humidity W of the non-woven fabric covered on the cylinder, the central control unit sequentially judges whether F belongs to F0 and W belongs to W0 after F is detected and W is obtained,
if F epsilon F0 and W epsilon W0, the central control unit judges that the system is normal in operation;
if it is
And W epsilon W0, the central control unit judges that the toughness of the dried non-woven fabric does not meet the standard, and the central control unit calculates a pressure difference delta F and controls the cylinder to move vertically according to the actual value of delta F;
if F is E F0 and
the central control unit judges that the system cannot dry the non-woven fabric to a preset standard, calculates an average humidity difference delta W and adjusts the exhaust amount of the gas transmission pipe according to the actual value of delta W;
If it is
And->
The central control unit judges that the operation parameters of the components in the system can not finish drying or shaping the non-woven fabrics, calculates an average humidity difference delta W, adjusts the exhaust amount of the air delivery pipe according to the actual value of delta W, calculates a pressure difference delta F when the average humidity W 'epsilon W0 of the non-woven fabrics in the preset time period after adjustment, and controls the cylinder to vertically move according to the actual value of delta F so as to enable the non-woven fabrics to apply the pressure F' epsilon F0 to the cylinder in the preset time period after adjustment.
2. The intelligent drying and shaping system based on non-woven fabric after finishing according to claim 1, wherein F0 (Fmin, fmax) is set for the preset pressure interval F0, wherein Fmin is a preset minimum pressure and Fmax is a preset maximum pressure, when the central control unit controls the corresponding pressure sensor to detect the pressure F applied by the non-woven fabric to the single cylinder and determine
When the pressure difference DeltaF is calculated by the central control unit, if F is larger than Fmax, the central control unit judges that the non-woven fabric is damaged in the drying process and sets DeltaF=F-Fmax, and if F is smaller than Fmin, the central control unit judges that the toughness of the non-woven fabric after drying can not reach a preset standard and sets DeltaF=fmin-F; />
The central control unit is also provided with a first preset pressure difference delta F1, a second preset pressure difference delta F2, a first preset distance adjustment coefficient a1, a second preset distance adjustment coefficient a2 and a third preset distance adjustment coefficient a3, wherein delta F1 is less than delta F2, and 0 < a1 < a2 < a3 < 0.6;
When the central control unit finishes the calculation of the pressure difference delta F, the central control unit sequentially compares delta F with each preset pressure difference,
if the delta F is less than or equal to delta F1, the central control unit selects a first preset distance adjustment coefficient a1 to adjust the vertical distance between the cylinder and the rollers belonging to the same group with the cylinder;
if DeltaF 1 < DeltaF2 is less than or equal to DeltaF 2, the central control unit adjusts the vertical distance between the cylinder and the rollers belonging to the same group with the cylinder by using a second preset distance adjustment coefficient a 2;
if DeltaF > DeltaF2, the central control unit selects a third preset distance adjustment coefficient a3 to adjust the vertical distance between the cylinder and the rollers belonging to the same group with the cylinder;
when the central control unit selects the i preset distance adjustment coefficient ai to adjust the vertical distance between the cylinder and the rollers belonging to the same group with the cylinder, setting i=1, 2 and 3, marking the adjusted vertical distance between the cylinder and the corresponding roller as D ', if F is larger than Fmax, setting D ' =D× (1-ai) by the central control unit, and setting D ' =D× (1+ai) by the central control unit if F is smaller than Fmin, wherein D is the initial vertical distance between the cylinder and the corresponding roller;
when the central control unit completes the vertical distance between the cylinder and the corresponding roller, the central control unit re-detects the pressure F 'applied by the non-woven fabric to the cylinder when the adjusted time length reaches the preset detection time length t0, if F' E F0, the central control unit judges that the adjustment is completed, if 
The central control unit readjusts the vertical distance between the cylinder and the corresponding roller until the pressure F'. Epsilon.F0 applied by the nonwoven fabric to the cylinder after adjustment.
3. The intelligent drying and shaping system based on non-woven fabric after-finishing according to claim 2, wherein a valve connected with the central control unit is arranged in each air pipe for adjusting the flow of hot steam entering the box body; setting W0 (Wmin, wmax) for the preset average water content interval W0, wherein Wmin is a preset minimum average water content and Wmax is a preset maximum average water content;
when the central control unit controls the corresponding first water content detector and the corresponding second water content detector on the cylinder to sequentially detect the water content on two sides of the non-woven fabricThe water content was calculated to determine the average moisture W of the nonwoven fabric covered on the cylinder
If W is more than Wmax, the central control unit judges that the non-woven fabric is not dried and sets DeltaW=W-Wmax, and if W is less than Wmin, the central control unit judges that the water content of the non-woven fabric is too low and sets DeltaW=Wmin-W;
the central control unit is also provided with a first preset water content difference delta W1, a first valve opening adjustment coefficient b1 and a second valve opening adjustment coefficient b2, and the setting is that b1 is more than 0 and b2 is less than 0.5; when the central control unit finishes calculating the water content difference value delta W, the central control unit compares delta W with delta W1, if delta W is less than or equal to delta W1, the central control unit uses the first valve opening adjustment coefficient b1 to adjust the opening of each valve, and if delta W is > -delta W1, the central control unit uses the second valve opening adjustment coefficient b2 to adjust the opening of each valve;
When the central control unit adjusts the opening of each valve by using the j-th valve opening adjustment coefficient bj, if W is greater than Wmax, the central control unit sets the adjusted valve opening K '=k× (1.5+bj), where K is the initial opening of each valve, and if W is less than Wmin, the central control unit sets the adjusted valve opening K' =k× (0.8-bj);
when the central control unit finishes the adjustment of the opening of each valve, the central control unit re-detects the average water content W 'of the non-woven fabric when the adjusted time length reaches the preset detection time length t0, if W' is E W0, the central control unit judges that the adjustment is finished, if
The central control unit readjusts the opening degree of each valve until the average water content W'. Epsilon.W 0 of the regulated non-woven fabric.
4. The intelligent drying and shaping system based on non-woven fabric after-finishing as claimed in claim 3, wherein a preset maximum moving distance Dmax is further arranged in the central control unit; when the central control unit adjusts the vertical movement of a single cylinder, the central control unit counts the distance Da between the position of the cylinder after the movement and the initial position and compares the distance Da with the distance Dmax, if Da is less than or equal to Dmax, the central control unit does not adjust the position of the cylinder adjacent to the cylinder, if Da is more than Dmax, the central control unit judges that the cylinder cannot be moved to a designated position, the central control unit sets the movement distance of the cylinder as Dmax and adjusts the position of the cylinder adjacent to the cylinder, if the vertical distance between the cylinder and the adjacent cylinder after adjustment is increased, the central control unit controls the adjacent cylinder to move in the direction away from the cylinder and sets the movement distance as Da-Dmax, and if the vertical distance between the cylinder and the adjacent cylinder after adjustment is reduced, the central control unit controls the adjacent cylinder to move in the direction close to the cylinder and sets the movement distance as Da-Dmax.
5. The intelligent drying and shaping system based on non-woven fabric after-finishing as claimed in claim 4, wherein a preset maximum cylinder spacing Lmax and a preset minimum cylinder spacing Lmin are further arranged in the central control unit;
when the central control unit adjusts the position of a single cylinder or adjusts a single cylinder and a cylinder adjacent to the single cylinder, the central control unit counts the vertical distance L between the cylinder and the adjacent cylinder and compares L with Lmax and Lmin respectively,
if L is less than or equal to Lmin, the central control unit sets the vertical distance between the cylinder and the cylinder adjacent to the cylinder as Lmin and reduces the opening of each valve;
if Lmin is less than L and less than or equal to Lmax, the central control unit does not adjust the vertical distance between the cylinder and the cylinder adjacent to the cylinder;
if L > Lmax, the central control unit sets the vertical distance between the cylinder and the adjacent cylinder as Lmax and increases the opening degree of each valve.
6. The intelligent drying and shaping system based on non-woven fabric after-finishing as claimed in claim 1, wherein a plurality of air outlet holes are formed in the side wall of the cylinder, a fan is arranged in the cylinder, and the center line of the fan coincides with the rotating shaft of the cylinder; an exhaust pipe is arranged at the output end of the fan, a plurality of exhaust branch pipes are arranged at one end of the exhaust pipe far away from the fan, and the end parts of the exhaust branch pipes are connected with the corresponding air outlet holes and are used for conveying the air output by the fan to the outside of the cylinder; the central control unit is connected with the fan and used for adjusting the running power of the fan;
When the central control unit calculates the average water content of the non-woven fabric on the single cylinder, the central control unit detects the water content Wa of the non-woven fabric on the side far away from the cylinder by using the corresponding first water content detector, detects the water content Wb of the non-woven fabric on the side close to the cylinder by using the second water content detector on the cylinder, and after the detection is finished, the central control unit marks the average water content of the non-woven fabric on the single cylinder as W, and sets W=1/2 (Wa+Wb).
7. The intelligent drying and shaping system based on non-woven fabric after-finishing according to claim 6, wherein the central control unit is further provided with a first preset internal and external water content difference value Deltaw 1, a second preset internal and external water content difference value Deltaw 2, a first preset fan power adjustment coefficient c1 and a second preset fan power adjustment coefficient c2, deltaw 1 < Deltaw2 is set, and 0 < c1 < c2 < 0.3;
when the central control unit calculates the average water content of the non-woven fabrics on the single cylinder, the central control unit compares Wa with Wb and calculates an internal and external water content difference value Deltaw after the comparison is completed, if Wa is more than Wb, the central control unit sets Deltaw=Wa-Wb, and if Wa is less than Wb, the central control unit sets Deltaw=Wb-Wa; after the calculation is completed, the central control unit compares Deltaw with Deltaw 1 and Deltaw 2 in sequence,
If Deltaw is less than or equal to Deltaw 1, the central control unit does not adjust the running power of the fan in the cylinder;
if Deltaw 1 < Deltaw2 is less than or equal to Deltaw 2, the central control unit uses the first preset fan power adjustment coefficient c1 to adjust the running power of the fan in the cylinder;
if Deltaw > Deltaw2, the central control unit uses the second preset fan power adjustment coefficient c2 to adjust the running power of the fan in the cylinder;
when the central control unit uses the k preset fan power adjustment coefficient ck to adjust the running power of the fan in the cylinder, k=1, 2 is set, the running power of the fan after adjustment is recorded as P',
when Wa > Wb, P' =p× (1+ck) is set;
when Wa < Wb, P' =p× (1-ck) is set.
8. The intelligent drying and shaping system based on non-woven fabric after-finishing as claimed in claim 3, wherein the central control unit is further provided with a preset maximum opening Kmax and a preset minimum opening Kmin, and when the central control unit completes the adjustment of the opening of each valve, the central control unit sequentially compares the opening K' of the valve after adjustment with Kmax and Kmin,
if K' is less than or equal to Kmin, the central control unit sets the opening degree of each valve to Kmin and increases the rotation speed V of each cylinder;
If Kmin is less than K 'and less than or equal to Kmax, the central control unit sets the opening degree of each valve to K' and does not adjust the rotation speed V of each cylinder;
if K' > Kmax, the central control unit sets the opening degree of each valve to Kmax and reduces the rotation speed V of each cylinder.
9. The intelligent drying and shaping system based on non-woven fabric after-finishing according to claim 1, wherein guide rollers are arranged in the feeding port and the discharging port, and the conveying mechanism further comprises two flattening rollers which are respectively arranged between the two mounting plates and are respectively arranged at the feeding port and the discharging port;
10. the intelligent drying and shaping system based on non-woven fabric after-finishing according to claim 1, wherein heat radiating fins are arranged at the end parts of the branch pipes, which are positioned in the box body, and heat conducting oil is arranged in each heat radiating fin and used for absorbing heat in the hot steam so as to dry the non-woven fabric in the box body.
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| CN212052056U (en) * | 2019-12-11 | 2020-12-01 | 佛山大唐纺织印染服装面料有限公司 | Tentering setting machine capable of automatically adjusting parameters |
| CN212741847U (en) * | 2020-07-23 | 2021-03-19 | 南通艾爽纺织有限公司 | Textile setting machine |
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| JPH09310972A (en) * | 1996-05-20 | 1997-12-02 | Hiroshi Azuma | Steam control device in continuous cylinder drying machine for cloth |
| WO2015082018A1 (en) * | 2013-12-06 | 2015-06-11 | Electrolux Appliances Aktiebolag | Laundry treatment apparatus having a laundry water content sensor |
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