Continuous production system and method for pressure-sensitive adhesive protective film

Abstract

The invention discloses a continuous production system and method for a pressure-sensitive adhesive protective film, and belongs to the technical field of surface coating. The continuous production system of the pressure-sensitive adhesive protective film comprises an unwinding device, a tension adjusting device, a coating device, a drying device, a supporting device, a detecting device, a winding device, a first control device and a second control device. The target inherent frequency is selected according to the target drying frequency, and the position number of the second fulcrum is adjusted according to the target inherent frequency. If the position data exceed the first interval, the tension force of the non-adhesive film is adjusted, and if the tension force exceeds the second interval, the target inherent frequency is selected again, and the tension variable of the non-adhesive film is calculated. The position data of the second fulcrum and the tension force of the non-adhesive film are adjusted, and then the inherent frequency of the non-adhesive film drying section is adjusted, so that the inherent frequency of the drying section is far away from the drying frequency, the protection film and drying hot air are prevented from forming resonance, and the coating stability is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of surface coating, and particularly to a continuous production system and method for a pressure-sensitive adhesive protective film. Background Art

[0002] The pressure of the pressure-sensitive adhesive is relatively sensitive to the coating roller. During the coating process of the pressure-sensitive adhesive protective film, in order to reduce the pressure on the liquid pressure-sensitive adhesive, no pressure roller is provided between the coating head and the drying oven, that is, the protective film substrate is in a free state. Within this interval, vibration will reduce the coating quality of the protective film. Japanese Patent Publication No. JP2008060348A discloses a coating device that effectively prevents resonance caused by external vibration. The coating device loads the resonance prevention member into the square tube recess of the platform and the slit nozzle moving mechanism. When the square tube is loaded with the anti-resonance member, the natural frequency of the base changes, so that external vibration will not cause resonance. This solution avoids resonance by changing the natural frequency of the base, but the vibration of the substrate still exists. In addition, Chinese Patent Publication No. CN118847440A discloses a vibration-free coating device and its control method. This method combines PID control to reduce the vibration generated during the coating process. Due to the periodic operation of the hot air in the drying oven, the vibration of the hot air inevitably causes the protective film to vibrate accordingly. In view of this, in order to improve the coating stability, it is necessary to reduce the forced vibration of the protective film following the hot air in combination with the coating state of the protective film. Summary of the Invention

[0003] In view of the above problems, the present invention provides a continuous production system and method for a pressure-sensitive adhesive protective film, which reduces the vibration of the protective film through the position data of the protective film fulcrum and the tension of the protective film, and improves the coating stability.

[0004] The inventive object of the present application can be achieved by the following technical means: A continuous production system for a pressure-sensitive adhesive protective film, comprising: An unwinding device configured to unwind a non-adhesive film at an unwinding speed; A tension adjusting device configured to adjust the tension of the non-adhesive film; A coating device configured to coat a pressure-sensitive medium on the non-adhesive film to form a protective film, and the coating device provides a first fulcrum for the protective film; A drying device configured to output a drying medium at a drying frequency, and the drying medium dries the pressure-sensitive medium; A support device configured to provide a second fulcrum for the protective film; A detection device configured to detect the state data of the pressure-sensitive medium; A winding device configured to collect the protective film at a winding speed; The first control device is configured to calculate the drying speed according to the winding speed, and calculate the target drying frequency according to the drying speed and the status data; The second control device is configured to adjust the position data of the second fulcrum and the tension of the non-adhesive film according to the target drying frequency, where the first control device calculates the air supply variable according to the drying speed and the status data, and calculates the target drying frequency based on the air supply variable, the second control device selects the target natural frequency according to the target drying frequency, adjusts the position data of the second fulcrum according to the target natural frequency. If the position data exceeds the first interval, adjust the tension of the non-adhesive film. If the tension exceeds the second interval, reselect the target natural frequency, calculate the tension variable of the non-adhesive film, and adjust the unwinding speed according to the tension variable.

[0005] In the present invention, the unwinding device has an infrared sensing unit for measuring the storage radius of the non-adhesive film, and the winding device has an infrared sensing unit for measuring the storage radius of the protective film.

[0006] In the present invention, the coating device includes a glue bucket, an upper die, and a lower die. The pressure-sensitive medium in the glue bucket flows into the non-adhesive film through the slit between the upper die and the lower die, and the midpoint of the slit is the first fulcrum.

[0007] In the present invention, the drying device has multiple groups of drying cylinders arranged at intervals, and each drying cylinder has multiple groups of air inlets and air outlets.

[0008] In the present invention, the status data is the medium humidity. The first control device calculates the drying speed according to the winding speed, calculates the water evaporation demand according to the drying speed and the status data, and then calculates the air supply variable.

[0009] In the present invention, the protective film between the first fulcrum and the second fulcrum is the drying section. Calculate the target span of the drying section according to the target natural frequency, and adjust the position data of the second fulcrum until the length of the drying section is equal to the target span.

[0010] In the present invention, if the position data exceeds the first interval, calculate the target tension according to the target natural frequency, and adjust the tension of the non-adhesive film to the target tension.

[0011] In the present invention, the tension adjusting device includes a first reversing roller, a second reversing roller, a tension roller, a telescopic device, and a cantilever. The non-adhesive substrate passes through the first reversing roller, the tension roller, and the second reversing roller in sequence, and the telescopic device controls the tension of the non-adhesive film through the adjustment angle of the cantilever.

[0012] In the present invention, calculate the tension variable of the non-adhesive film according to the adjustment angle, and adjust the unwinding speed according to the tension variable.

[0013] A continuous production method for a continuous production system of a pressure-sensitive adhesive protective film, comprising the following steps: Step 1: Unwind the non-adhesive film at the unwinding speed; Step 2: Adjust the tension of the non-adhesive film; Step 3: Coat the non-adhesive film with a pressure-sensitive medium to form a protective film; Step 4: Output the drying medium at the drying frequency, and the drying medium dries the pressure-sensitive medium; Step 5: The protective film passes through the second fulcrum to detect the state data of the pressure-sensitive medium; Step 6: Wind up the protective film at the winding speed; Step 7: Calculate the drying speed according to the winding speed, and adjust the drying frequency according to the drying speed and the state data; Step 8: Adjust the position data of the second fulcrum and the tension of the non-adhesive film according to the drying frequency, and return to Step 1.

[0014] Implementing a continuous production system and method for a pressure-sensitive adhesive protective film of the present invention, the beneficial effects are as follows: The drying device outputs the drying hot air to the drying section of the non-adhesive film according to the drying frequency, and the drying frequency changes with the winding speed. The present invention adjusts the position data of the second fulcrum and the tension of the non-adhesive film, thereby adjusting the natural frequency of the drying section of the non-adhesive film, so that the natural frequency of the drying section is far from the drying frequency, avoiding resonance between the protective film and the drying hot air, and improving the stability of coating. Further, the present invention adjusts the unwinding speed according to the tension amount, avoiding the change of the tension force affecting the coating production speed. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the continuous production system of the pressure-sensitive adhesive protective film of the present invention; Figure 2 It is a partial view of the continuous production system of the present invention, mainly showing the movement direction of the protective film; Figure 3 It is another partial view of the continuous production system of the present invention, mainly showing the vibration of the protective film; Figure 4 It is a schematic diagram of the unwinding device of the present invention; Figure 5 It is a partial view of the coating device of the present invention; Figure 6 It is a partial view of the drying device of the present invention; Figure 7 It is a schematic diagram of the winding device of the present invention; Figure 8 It is a force diagram of the tension adjusting device of the present invention; Figure 9 It is a schematic diagram of the geometric relationship of the tension adjusting device of the present invention; Figure 10 This is a flowchart of the continuous production method of the continuous production system for the pressure - sensitive adhesive protective film implemented in the present invention.

[0016] Reference numerals in the drawings: protective film 01, non - adhesive film 02, pressure - sensitive medium 03, unwinding device 10, tension adjusting device 20, first reversing roller 21, second reversing roller 22, tension roller 23, expander 24, cantilever 25, coating device 30, glue bucket 31, upper die 32, lower die 33, slit 34, drying device 40, drying cylinder 41, air inlet 42, air outlet 43, supporting device 50, detecting device 60, winding device 70, first control device 80, second control device 90. Detailed implementation manners

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Embodiment 1

[0018] As Figures 1 to 7 , in a continuous production system for a pressure - sensitive adhesive protective film of the present invention, during the drying process of the pressure - sensitive medium, affected by the hot - air frequency, the pressure - sensitive adhesive protective film undergoes forced vibration. The present invention avoids the resonance between the protective film and the drying hot air through the first control device and the second control device, improving the stability of coating. The continuous production system includes: an unwinding device 10, a tension adjusting device 20, a coating device 30, a drying device 40, a supporting device 50, a detecting device 60, a winding device 70, a first control device 80, and a second control device 90. The pressure - sensitive adhesive protective film 01 of the present invention is composed of a non - adhesive film 02 and a pressure - sensitive medium 03 coated on the non - adhesive film. The non - adhesive film 02 is, for example, polyvinyl chloride or polyurethane, and the pressure - sensitive medium 03 is, for example, acrylic adhesive or UV - curable adhesive. The continuous production system of the present invention coats the pressure - sensitive medium 03 on the non - adhesive film 02 and dries it to form the protective film 01.

[0019] Referring to Figure 4 , the unwinding device 10 is configured to unwind the non - adhesive film at an unwinding speed. As the unwinding device 10 operates, the non - adhesive film in the unwinding device gradually decreases. The unwinding device 10 has an infrared sensing unit for measuring the storage radius of the non - adhesive film. During operation, the linear velocity of the non - adhesive film can be predicted based on the real - time storage radius and the unwinding speed.

[0020] The tension adjusting device 20 is configured to adjust the tension of the adhesive-free film. The tension adjusting device includes a first reversing roller 21, a second reversing roller 22, a tension roller 23, a telescopic device 24, and a cantilever 25. The adhesive-free film sequentially passes through the first reversing roller 21, the tension roller 23, and the second reversing roller 22. The telescopic device 24 controls the tension of the adhesive-free film through the adjustment angle of the cantilever 25. In a further embodiment, due to the change of the adjustment angle, the tension variable of the adhesive-free film changes. Calculate the tension variable of the adhesive-free film according to the adjustment angle, and adjust the unwinding speed according to the tension variable to avoid the change of the tension affecting the coating stability.

[0021] As Figure 5 , the coating device 30 is configured to coat the pressure-sensitive medium on the adhesive-free film to form a protective film, and the coating device provides a first fulcrum for the protective film. The coating device 30 adopts the slit coating principle. The coating device includes a glue bucket 31, an upper die 32, and a lower die 33. The pressure-sensitive medium in the glue bucket flows into the adhesive-free film through the slit 34 between the upper die and the die. The midpoint of the slit 34 is the first fulcrum.

[0022] The drying device 40 is configured to output a drying medium according to a drying frequency, and the drying medium dries the pressure-sensitive medium. As Figure 6 , the drying device has multiple groups of drying cylinders 41 arranged at intervals, and each drying cylinder has multiple groups of air inlets 42 and air outlets 43. Preferably, the drying cylinder is an axial flow fan, and the change of the drying frequency changes the amplitude of the protective film.

[0023] The supporting device 50 is configured to provide a second fulcrum for the protective film. The supporting device is composed of two groups of pressure rollers for example. The protective film between the midpoint of the slit 34 and the supporting device 50 is in a free state and can be simplified as a simply supported beam with a length of H. The drying section of the protective film between the first fulcrum and the second fulcrum can be regarded as an Euler-Bernoulli beam subjected to a pre-tightening force. The natural frequency of the drying section of the protective film can be adjusted by the distance between the first fulcrum and the second fulcrum.

[0024] The detection device 60 is configured to detect the state data of the pressure-sensitive medium. The state data is the medium humidity. The detection device 60 is, for example, a resistive humidity sensor, an infrared humidity sensor, etc.

[0025] Referring to Figure 7 , the winding device 70 is configured to collect the protective film at a winding speed. As the winding device 70 works, the protective film in the winding device 70 gradually increases. The winding device 70 has an infrared sensing unit for measuring the storage radius of the protective film. To ensure stable coating, the winding speed can be adjusted in real time according to the storage radius.

[0026] The first control device 80 is configured to calculate the drying speed according to the winding speed, and calculate the target drying frequency according to the drying speed and the state data. Specifically, the first control device calculates the drying speed according to the winding speed, calculates the moisture evaporation demand according to the drying speed and the state data, and then calculates the air supply variable. Based on this air supply variable, the target drying frequency is calculated. The drying device outputs the drying hot air to the drying section of the non-adhesive film according to the drying frequency, so that the current humidity of the pressure-sensitive medium is close to the target humidity, improving the product quality.

[0027] The second control device 90 is configured to adjust the position data of the second fulcrum and the tension of the non-adhesive film according to the target drying frequency. Specifically, the second control device selects the target natural frequency according to the target drying frequency, adjusts the position data of the second fulcrum according to the target natural frequency. If the position data exceeds the first interval, the tension of the non-adhesive film is adjusted. If the tension exceeds the second interval, the target natural frequency is reselected. The present invention adjusts the position data of the second fulcrum and the tension of the non-adhesive film, and further adjusts the natural frequency of the non-adhesive film drying section, so that the natural frequency of the drying section is far from the drying frequency, improving the stability of coating. Embodiment 2

[0028] This embodiment further discloses a preferred method for the first control device to select the drying frequency and the second control device to adjust the natural frequency of the protective film.

[0029] Calculate the drying speed according to the winding speed. The storage radius of the protective film on the winding device is R3, and the winding speed ω2 of the winding roller in the winding device corresponds to the linear speed v2 of the protective film = ω2R3.

[0030] Calculate the air supply variable according to the drying speed and the state data. The state data is the current humidity w1 of the pressure-sensitive medium, and the moisture evaporation demand m = ρ1v2[w1 / (1 - w1) - w0 / (1 - w0)], where ρ1 is the linear density of the pressure-sensitive medium in the protective film (the mass of the pressure-sensitive medium per unit length of the protective film, for example, 5 - 15 g / m), and w0 is the target humidity of the pressure-sensitive medium. The air supply variable Q1 = m / [ρ2 / (C2 - C1)], where ρ2 is the air density, for example, 1.0 kg / m 3 . C1 is the absolute humidity of the air at the air inlet, usually 5 - 10 g / kg. C2 is the absolute humidity of the air at the air outlet, usually 20 - 40 g / kg.

[0031] Calculate the target drying frequency based on this air supply variable. The target drying frequency f1 = f0(Q1 + Q0) / Q0. f0 is the current drying frequency, and Q0 is the current air supply volume, for example, 1000 m 3 / h.

[0032] Select the target natural frequency according to the target drying frequency. Calculate the minimum frequency adjustment amount f3 that satisfies |(f2 + f3) - f1| ≥ 0.2f1. The target natural frequency is f2 + f3, where f2 is the current natural frequency. Since the first-order natural frequency has a greater impact on the vibration of the protective film, the natural frequency in this embodiment refers to the first-order natural frequency of the drying section of the protective film.

[0033] Calculate the target span of the drying section according to the target natural frequency, and then adjust the position data of the second fulcrum. Target natural frequency = f2 + f3 = . ρ3 is the linear density of the non-adhesive film, for example, 10 - 24 g / m. F is the target tension of the non-adhesive film, and H is the target span of the drying section. Keep the tension unchanged and calculate the target span. Adjust the position data of the second fulcrum until the length of the drying section is equal to the target span. The first-order natural frequency of the adjusted drying section is far from the target drying frequency, effectively reducing vibration.

[0034] If the position data exceeds the first interval, calculate the target tension according to the target natural frequency. The first interval is the adjustment range of the second fulcrum. Since the support device is installed in a limited area, the position data of the second fulcrum is adjusted within this limited area. The first interval is, for example, 0.01 to 0.5 meters. Keep the target span H unchanged, according to f2 + f3 = Calculate the target tension. Adjust the tension of the non-adhesive film to the target tension. The preferred adjustment method refers to that described in Embodiment 3.

[0035] If the tension exceeds the second interval, the tension of the non-adhesive film reaches the maximum value, and reselect the target natural frequency. First, reselect f3 in the opposite direction, calculate the minimum frequency adjustment amount f3 that satisfies |(f2 + f3) - f1| ≥ 0.2f1, and, if f2 ≥ f1, f3 ≤ 0, if f2 < f1, f3 > 0. Then adjust the position data of the second fulcrum or the tension of the non-adhesive film according to the reselected target natural frequency.

[0036] The second interval is the adjustment range of the tension. The second interval is, for example, 10 to 500 N. Usually, the non-adhesive film is within the elastic deformation range. When the tension exceeds the second interval, the excessive tension causes plastic deformation of the non-adhesive film, resulting in irreversible damage. Therefore, in this embodiment, the tension is limited within the second interval. Embodiment 3

[0037] Such as Figures 8 to 9, this embodiment further discloses a preferred method for the second control device to adjust the unwinding speed according to the tension variable. In this embodiment, the unwinding speed ω1(t + 1) of the (t + 1)-th period is calculated based on the current adjustment angle θ(t) of the period t and the target adjustment angle θ(t + 1) of the period t + 1. The period interval is set as τ. For the convenience of expression, let the target adjustment angle θ(t + 1)=θ', and let the current adjustment angle θ(t)=θ.

[0038] First, the expander controls the tension of the non-adhesive film through the adjustment angle of the cantilever. By changing the tension of the expander, the expander gradually adjusts the adjustment angle of the cantilever until the tension of the non-adhesive film reaches the target tension. Specifically, after the control of the target adjustment angle θ' is completed, the tension of the expander changes. Measure the tension F2 of the expander, and then predict the target tension F1. According to the pulley force principle, the angles between the target tensions of the first reversing roller and the second reversing roller and the center line of the tension adjusting device are equal, both set as α1. The tension applied by the tension roller to the cantilever is 2F1cosα1. The expander and the tension roller form a lever mechanism. According to the balance relationship of the cantilever sinα2(2cosα1F1)×L3 = F2cosθ'×L4, the target tension F1 can be calculated, where L3 is the length between the hinge point of the tension roller and the hinge point of the cantilever, L4 is the length between the hinge point of the expander and the hinge point of the cantilever, and α2 is the deflection angle of the tension roller.

[0039] α1 and α2 of the present invention are gradually adjusted as the cantilever swings. In this embodiment, the calculation methods of α1 and α2 are further given. Combining Figure 9 , the angle between the tangent foot of the tension roller and the connection line of the first center is β1, the angle between the connection line of the first center and the perpendicular bisector is β2, and the angle between the perpendicular bisector and the center line is β3. α1 = π / 2-(β1 + β2 + β3). Among them, β1 = arccos(2R2 / L 12 ). The horizontal distance between the tension roller and the first reversing roller in the initial state is 2R2, and the horizontal distance variable at the current adjustment angle θ is sinθtanθL4. β2 = arcsin[(2R2 - sinθtanθL3) / L 12 . The vertical distance between the tension roller and the first reversing roller at the current adjustment angle θ is L0 + cosθtanθL4. β3 = arctan[(sinθtanθL3) / (L0 + cosθtanθL3)]. The angle between the center line and the horizontal axis is the deflection angle α2 of the tension roller. In the initial state, the deflection angle α2 of the tension roller is 0, and α1 = π / 2. Therefore, at the current adjustment angle θ, α2 = π / 2 - β3 = π / 2 - arctan[(sinθtanθL3) / (L0 + cosθtanθL3)].

[0040] Then, calculate the tension variable of the non-adhesive film. Specifically, substitute the current adjustment angle θ into the functional relationship between the total tension and the adjustment angle to obtain the current total tension S0. Substitute the target adjustment angle θ' into the functional relationship between the total tension and the adjustment angle to obtain the target total tension S0'. The tension variable S1 = S0' - S0.

[0041] In this embodiment, the functional relationship between the total tension and the adjustment angle is further given. The current total tension S0 = L 11 -L0 + L 21 -L0, L 11 is the tension between the first reversing roller and the tension roller, and L 21 is the tension between the second reversing roller and the tension roller. In the initial state (the first adjustment angle is zero), the vertical distance between the first reversing roller and the tension roller is L0. The radii of the first reversing roller, the second reversing roller, and the tension roller are all R2. , . Among them, the center distance between the first reversing roller and the tension roller , and the center distance between the second reversing roller and the tension roller , and L3 is the length between the hinge point of the tension roller and the hinge point of the cantilever, that is, the effective length of the cantilever.

[0042] That is, the functional relationship can be expressed as: for the current first adjustment angle θ, the current total tension . Similarly, for the target first adjustment angle θ', the target total tension .

[0043] Finally, adjust the unwinding speed. The unwinding speed ω1(t + 1) = v1(t + 1) / R1. R1 is the storage radius of the unwinding roller. Specifically, the linear speed v1(t + 1) of the unwinding roller in the (t + 1) - th cycle is v1(t + 1)=v1(t)+v', and v1(t)= ω1(t + 1) R1. The tension speed v' = S1 / τ, where τ is the cycle interval. After adjusting the unwinding speed, while the unwinding device supplies the non - adhesive film at v1(t), it supplies the tension variable at v'. Thus, even if the tension variable changes, the linear speed of the protective film in the drying device remains stable. Embodiment 4

[0044] Refer to Figure 10 , a continuous production method of a continuous production system of the pressure - sensitive adhesive protective film according to the present invention, measure the state data of the pressure - sensitive medium in the measurement period t, calculate the target drying frequency and the target natural frequency in the calculation period t + 1, and then adjust the position data of the second fulcrum and the tension force of the non - adhesive film. The coating method includes the following steps.

[0045] Initialize the system parameters, preset the first tension and the second tension, and preset the period t = 0.

[0046] Step 1: Release the non-adhesive film at the unwinding speed; Step 2: Adjust the tension of the non-adhesive film; Step 3: Coat the pressure-sensitive medium on the non-adhesive film to form a protective film; Step 4: Output the drying medium at the drying frequency, and the drying medium dries the pressure-sensitive medium; Step 5: The protective film passes through the second fulcrum to detect the state data of the pressure-sensitive medium; Step 6: Collect the protective film at the winding speed; Step 7: Calculate the drying speed according to the winding speed, and adjust the drying frequency according to the drying speed and the state data; Step 8: Adjust the position data of the second fulcrum and the tension of the non-adhesive film according to the drying frequency, t = t + 1, and return to Step 1.

[0047] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A continuous production system for a pressure-sensitive adhesive protective film, characterized in that, Comprising: An unwinding device configured to unwind the non-adhesive film at an unwinding speed; A tension adjusting device configured to adjust the tension of the non-adhesive film; A coating device configured to coat a pressure-sensitive medium on the non-adhesive film to form a protective film, and the coating device provides a first fulcrum for the protective film; A drying device configured to output a drying medium at a drying frequency, and the drying medium dries the pressure-sensitive medium; A supporting device configured to provide a second fulcrum for the protective film; A detecting device configured to detect the state data of the pressure-sensitive medium; A winding device configured to collect the protective film at a winding speed; A first control device configured to calculate a drying speed according to the winding speed, and calculate a target drying frequency according to the drying speed and the state data; A second control device configured to adjust the position data of the second fulcrum and the tension of the non-adhesive film according to the target drying frequency, wherein, The first control device calculates an air supply variable according to the drying speed and the state data, and calculates a target drying frequency based on the air supply variable, The second control device selects a target natural frequency according to the target drying frequency, adjusts the position data of the second fulcrum according to the target natural frequency, if the position data exceeds the first interval, adjusts the tension of the non-adhesive film, if the tension exceeds the second interval, re-selects the target natural frequency, calculates the tension variable of the non-adhesive film, and adjusts the unwinding speed according to the tension variable.

2. The continuous production system of the pressure-sensitive adhesive protective film according to claim 1, wherein The unwinding device has an infrared sensing unit for measuring the storage radius of the non-adhesive film, and the winding device has an infrared sensing unit for measuring the storage radius of the protective film.

3. The continuous production system of the pressure-sensitive adhesive protective film according to claim 1, characterized in that, The coating device includes a glue bucket, an upper die, and a lower die. The pressure-sensitive medium in the glue bucket flows into the non-adhesive film through the slit between the upper die and the lower die, and the midpoint of the slit is the first fulcrum.

4. The continuous production system of the pressure-sensitive adhesive protective film according to claim 1, characterized in that, The drying device has multiple groups of drying cylinders arranged at intervals, and each drying cylinder has multiple groups of air inlets and air outlets.

5. The continuous production system of the pressure-sensitive adhesive protective film according to claim 1, characterized in that, The state data is the medium humidity. The first control device calculates the drying speed according to the winding speed, calculates the moisture evaporation demand according to the drying speed and the state data, and then calculates the air supply variable.

6. The continuous production system of the pressure-sensitive adhesive protective film according to claim 1, characterized in that, The protective film between the first fulcrum and the second fulcrum is the drying section. Calculate the target span of the drying section according to the target natural frequency, and adjust the position data of the second fulcrum until the length of the drying section is equal to the target span.

7. The continuous production system of the pressure-sensitive adhesive protective film according to claim 1, characterized in that, If the position data exceeds the first interval, calculate the target tension according to the target natural frequency, and adjust the tension of the non-adhesive film to the target tension.

8. The continuous production system of the pressure-sensitive adhesive protective film according to claim 7, characterized in that, The tension adjusting device includes a first reversing roller, a second reversing roller, a tension roller, a telescopic device and a cantilever. The non-adhesive substrate passes through the first reversing roller, the tension roller and the second reversing roller in sequence, and the telescopic device controls the tension of the non-adhesive film through the adjustment angle of the cantilever.

9. The continuous production system of the pressure-sensitive adhesive protective film according to claim 8, characterized in that, Calculate the tension variable of the non-adhesive film according to the adjustment angle, and adjust the unwinding speed according to the tension variable.

10. A continuous production method of the continuous production system of the pressure-sensitive adhesive protective film according to claim 1, characterized in that, Including the following steps: Step 1: Unwind the non-adhesive film at the unwinding speed; Step 2: Adjust the tension of the non-adhesive film; Step 3: Coat a pressure-sensitive medium on the non-adhesive film to form a protective film; Step 4: Output a drying medium at the drying frequency, and the drying medium dries the pressure-sensitive medium; Step 5: The protective film passes through the second fulcrum, and the state data of the pressure-sensitive medium is detected; Step 6: Collect the protective film at the winding speed; Step 7: Calculate the drying speed according to the winding speed, and adjust the drying frequency according to the drying speed and status data; Step 8: Adjust the position data of the second fulcrum and the tension of the non-adhesive film according to the drying frequency, and return to Step 1.

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