Self-adaptive tension control high-precision mold pressing equipment

Abstract

The invention relates to the technical field of mold pressing machining equipment, and discloses self-adaptive tension control high-precision mold pressing equipment which comprises a base, a rack assembly is fixed to the base through bolts, a self-adaptive tension adjusting assembly is arranged on one side of the rack assembly, a tension balance adjusting assembly is arranged below the self-adaptive tension adjusting assembly, and a tension balance adjusting assembly is arranged below the self-adaptive tension adjusting assembly. The tension balance adjusting assembly is inserted between the winding and unwinding assemblies in a penetrating mode, a high-precision upper die control assembly is arranged at the top of the rack assembly, an upper die is fixed to the bottom of the high-precision upper die control assembly through a screw, and the interior of the upper die communicates with a temperature control assembly on the upper portion. According to the high-precision mold pressing equipment with the self-adaptive tension control function, the tension balance adjusting assembly is matched with a feedback system of the pressure sensor, independent and accurate control over the tension of each layer of material is achieved, the problems of interlayer dislocation and layering are effectively solved, and the interlayer attaching precision of layered mold pressing products is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of molding processing equipment, in particular to high-precision molding equipment with adaptive tension control. Background Art

[0002] High-precision molding machines usually use hydraulic or servo drive systems to mold raw materials into the desired shape under high temperature and high pressure by precisely controlling the mold clamping force, stroke and speed. Layered molded products are made by stacking and pressing multiple layers of materials with different materials or functions. Their molding quality requires extremely high precision in tension control.

[0003] Traditional molding machines use fixed tension settings according to different materials during molding. However, during the lamination process, as temperature and pressure change, the material will undergo physical changes such as expansion and contraction. The traditional fixed tension control method cannot respond to these changes in a timely manner, which can easily lead to excessive stretching or insufficient tension of the material, resulting in quality problems such as deformation, wrinkles, and uneven thickness of the molded products. At the same time, during the stacking and transportation of layered materials, due to the different thicknesses and elastic moduli of each layer of material, existing equipment cannot ensure that the tension differences of each layer of material are within a controllable range, which can easily lead to misalignment and stratification between layers, affecting the overall performance and appearance of the product. Summary of the Invention

[0004] The object of the present invention is to provide a high-precision molding device with adaptive tension control to solve the problems raised in the background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a high-precision molding device with adaptive tension control, comprising a base, a frame assembly being fixed to the base by bolts, an adaptive tension adjustment assembly being provided on one side of the frame assembly, a tension balance adjustment assembly being provided below the adaptive tension adjustment assembly, the tension balance adjustment assembly being interspersed between the rewinding and unwinding assemblies, a high-precision upper mold control assembly being provided on the top of the frame assembly, an upper mold being fixed to the bottom of the high-precision upper mold control assembly by screws, and the interior of the upper mold being connected to the temperature control assembly above; A console is provided on the base, a base is provided on one side of the console, and a symmetrically arranged reset oil cylinder is fixed on the base by screws; The adaptive tension adjustment assembly includes an adaptive adjustment roller, a side column, a pressure sensor, a slider, and a spring connector. The middle portion of the adaptive adjustment roller is engaged with the rotating drum and rotates in conjunction with it. One end of the adaptive adjustment roller is connected to the spring connector and the other end is connected to the slider. The slider is engaged with the side column and slides in conjunction with it. One end of the spring connector abuts against the pressure sensor. The tension balance adjustment component includes a servo motor, a tension adjustment roller, a spiral shaft and a displacement block. The servo motor is connected to the spiral shaft. The spiral shaft is engaged with the displacement block and rotates helically. The displacement block is welded to one end of the tension adjustment roller.

[0006] After one molding, when the material undergoes physical changes such as expansion and contraction, the tension of the membrane changes, and the horizontal force acting on the adaptive adjustment roller changes instantaneously. The adaptive adjustment roller drives the spring connector to deform, and thus responds to the tension change of the membrane in time to avoid damage to the membrane due to hard stretching due to excessive shrinkage tension. The pressure of the spring connector squeezing the pressure sensor changes, and thus the pressure sensor monitors the tension change of the membrane in time and feeds back to the control console. The control console controls the servo motor to start, and the servo motor drives the spiral shaft to rotate. The spiral shaft rotates in the displacement block and causes relative displacement through the spiral force. The displacement block drives the tension adjustment roller to move horizontally in the support groove, and then accurately adjusts the tension of the film to be molded to a predetermined value, to avoid excessive tension differences between the layers of material due to different thicknesses and elastic moduli, resulting in interlayer dislocation and stratification, affecting the overall performance and appearance of the product.

[0007] Furthermore, the frame assembly includes vertical frames arranged equidistantly on the base, the vertical frames are connected by cross bars and fixed with bolts, a top platform is provided on the top of the vertical frame, a support platform is provided under the top platform, connecting frames are welded between the vertical frames, and a lower mold is welded on the top of the reset cylinder.

[0008] Furthermore, the spring connector includes an adjustment block, an adjustment spring and an abutment plate. The abutment plate is a cross-shaped structure. The side column is welded to the side of the vertical frame on the outside. The side column is provided with three equidistant annular grooves. The annular grooves are embedded in the abutment plate and the adjustment block and slide together.

[0009] Furthermore, the adjusting block is welded to one end of the adjusting spring and the abutment plate is welded to the other end. The pressure sensor is fixed to one side of the side column by screws. The abutment plate abuts one end of the pressure sensor. The pressure sensor and the servo motor are electrically connected to the console.

[0010] The adaptive adjustment roller drives the adjustment block to slide in the annular groove of the side column, and the adjustment block drives the adjustment spring to deform, thereby promptly responding to the tension change of the membrane. After the deformation, the pressure of the adjustment spring on the abutment plate changes, so that the pressure sensor promptly monitors the tension change of the membrane and feeds back to the console, and the console controls the start of the servo motor.

[0011] Furthermore, the servo motor is fixed to the inner side of the vertical frame on the outer side by screws, a rectangular block is welded to one end of the tension adjustment roller, the rectangular block is embedded in the support groove and slides together, and the support groove is welded to one side of the vertical frame on the outer side.

[0012] One end of the tension adjustment roller moves with the displacement block, and the other end drives the rectangular block to move horizontally in the support groove, so as to realize the stable movement of the tension adjustment roller in the horizontal direction, thereby adjusting the tension of the stretch film.

[0013] Furthermore, the unwinding and rewinding assembly includes an unwinding roller, an unwinding roller mounting part, a stretching roller, a motor and a clamping roller. The unwinding roller and the tension adjustment roller, the adaptive adjustment roller, and the stretching roller are arranged from bottom to top and in a Z shape. The two ends of the stretching roller are engaged with the sleeve and rotated together. The sleeve is symmetrically welded on one side of the vertical frame. The motor is fixed to the support plate by screws. The support plate is welded to one side of the vertical frame. The clamping roller is symmetrically arranged in an upper and lower abutment manner. The motor is connected to one end of the clamping roller at the bottom, and the two ends of the clamping roller arranged at the top are engaged with the connecting frame and rotated together.

[0014] When using the equipment to mold and composite PET film, brightness enhancement film and diffusion film into optical film, first use the unwinding roller mounting part to fit the unwinding roller, position it and rotate it, then pull the film on the unwinding roller from bottom to top in a Z-shape and wrap it around the tension adjustment roller, adaptive adjustment roller and stretching roller, and finally pass it through the clamping rollers to tighten the film.

[0015] Furthermore, the unwinding roller mounting component includes symmetrically arranged mounting columns, return springs and straight shafts, wherein the mounting columns on one side are provided with parallel circular grooves, and the mounting columns on the other side are provided with a plurality of hanging columns, the circular grooves are embedded in the straight shafts and slide together, one end of the return spring is welded to the straight shaft, and the other end is welded to the bottom of the circular groove, one end of the unwinding roller is connected to the straight shaft, and the other end is connected to the hanging columns.

[0016] When installing the unwinding roller, insert one end of the unwinding roller into the hanging column, then press the installation column on the opposite side of the hanging column to compress the return spring, so that the hanging column can cooperate with the installation column to engage, position and rotate the unwinding roller.

[0017] Furthermore, the high-precision upper mold control assembly includes an oil tank, a servo hydraulic pump, an electromagnetic proportional valve, a hydraulic cylinder and a molding control sensor. One side of the oil tank is connected to the servo hydraulic pump through a conduit, the servo hydraulic pump is connected to the electromagnetic proportional valve through a conduit, the electromagnetic proportional valve is connected to the hydraulic cylinder through a conduit, the molding control sensor is installed at one end of the lower mold by screws, the molding control sensor and the servo hydraulic pump are electrically connected to the control console, the oil tank is fixed to the top platform by screws, the lower end of the hydraulic cylinder is fixed to the upper mold by screws, a pressing mold is provided on the bottom surface of the upper mold, the top surface of the pressing mold is attached to the heating plate, the top of the heating plate is fixed to the pressing plate by screws, and the heating plate is connected to the heating pipe through several vertical pipes arranged at equal intervals.

[0018] The reset cylinder drives the lower mold close to the bottom of the film to be molded, and the servo hydraulic pump is started and accurately extracts the hydraulic oil from the tank. The hydraulic oil enters the hydraulic cylinder through the electromagnetic proportional valve to make it move, driving the upper mold to descend, and finally cooperates with the lower mold to mold the PET film, brightening film and diffusion film. During molding, the molding control sensor on the lower mold contacts the edge of the upper mold, and then monitors the molding pressure in real time and feeds it back to the control console. The control console controls the servo hydraulic pump and the electromagnetic proportional valve to accurately adjust the hydraulic pressure, realize closed-loop control, and improve molding accuracy.

[0019] Furthermore, the temperature control component includes a telescopic tube, a water pump, a water tank, a heating column, a temperature control box and a temperature sensor. The two ends of the heating pipe are connected to the symmetrically arranged telescopic tubes, one side of the telescopic tube is connected to the water pump, and the other side of the telescopic tube is connected to the water tank. The water pump is connected to the water tank through a conduit. The temperature sensor is arranged on the top of the water tank and extends into the interior thereof. A heating column is provided on one side of the water tank. The heating column and the temperature sensor are electrically connected to the temperature control box. The temperature control box and the water tank are both fixed on a support platform.

[0020] After the membrane is installed, use the console to input parameters such as molding temperature, molding pressure, and preset tension of the membrane on each unwinding roller, and start the equipment. The temperature control box uses the heating column to heat the water in the water tank according to the preset molding temperature, and uses the temperature sensor to feedback the heating temperature in real time, thereby achieving precise control of the water temperature. The water pump extracts the heated water and transports it into the heating pipe through a telescopic pipe to form a circulation. The hot water in the heating pipe heats the heating plate through the vertical pipe, and the heating plate heats the mold until the water temperature feedback from the temperature sensor tends to be stable, thereby achieving precise temperature control of the mold and improving the molding quality.

[0021] Furthermore, a soft board molding assembly is provided above the connecting frame, and the soft board molding assembly includes an inlet control motor, an outlet control motor, a control roller, a detection roller and a through-axis tension sensor. The control roller is provided with several and is symmetrically abutted up and down. One end of the control roller located at the bottom is connected to the inlet control motor and the outlet control motor, and the other end is engaged with the vertical rod and rotates together. The two ends of the control roller located at the top are engaged with the vertical rod and rotate together. The detection roller includes two and is symmetrically arranged up and down. One end of the detection roller is connected to the through-axis tension sensor, and the other end is engaged with the connecting frame and rotates together.

[0022] When the equipment is molding soft board materials such as electronic circuit substrates that are not suitable for continuous winding, the equipment is equipped with a soft board molding component. The tension value of the copper clad laminate and the prepreg is set through the console. The copper clad laminate and the prepreg are passed between the control rollers and wound on the side close to the detection rollers. The console adjusts the speed difference between the outlet control motor and the inlet control motor, and then uses the control rollers to pull the copper clad laminate and the prepreg to control the tension. The tension of the soft board is monitored in real time through the force exerted by the soft board on the detection roller and fed back to the console. The console adjusts the tension of each soft board to achieve high-precision molding with adaptive tension control.

[0023] Compared with the prior art, the present invention provides a high-precision molding device with adaptive tension control, which has the following beneficial effects: 1. This high-precision molding equipment with adaptive tension control achieves independent and precise control of the tension of each layer of material through a tension balance adjustment component combined with a pressure sensor feedback system, effectively solving the problems of inter-layer misalignment and delamination, and significantly improving the inter-layer fitting accuracy of layered molded products.

[0024] 2. This high-precision molding equipment with adaptive tension control can respond to abnormal tension instantly through the adaptive tension adjustment component, ensuring that the shrinkage and expansion effects of the material during the molding process have an effective buffer distance, ensuring that the tension of the material is in a normal state, and avoiding material damage caused by excessive tension. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the base structure of Example 1 of the present invention; Figure 3 This is a schematic structural diagram of a rack assembly according to a first embodiment of the present invention; Figure 4 Schematic diagram of the structure of the adaptive tension adjustment component of the first embodiment of the present invention; Figure 5 Schematic diagram of the structure of the tension balance adjustment component of the first embodiment of the present invention; Figure 6 This is a structural schematic diagram of a reel-and-roll assembly according to a first embodiment of the present invention; Figure 7 This is a schematic diagram of the internal structure of the mounting column according to the first embodiment of the present invention; Figure 8 This is a schematic structural diagram of a high-precision upper mold control assembly according to a first embodiment of the present invention; Figure 9 Schematic diagram of the internal structure of the upper mold of Example 1 of the present invention; Figure 10 This is a schematic diagram of the structure of the temperature control component according to the first embodiment of the present invention; Figure 11 This is a schematic diagram of the structure of the flexible board molded component according to the second embodiment of the present invention.

[0026] In the figure: 1. Base; 2. Frame assembly; 3. Adaptive tension adjustment assembly; 4. Tension balance adjustment assembly; 5. Rewinding and unwinding assembly; 6. High-precision upper mold control assembly; 7. Upper mold; 8. Temperature control assembly; 9. Soft board molding assembly; 11. Control console; 12. Base; 13. Reset cylinder; 14. Lower mold; 21. Vertical frame; 22. Crossbar; 23. Top platform; 24. Support platform; 25. Connecting frame; 31. Adaptive adjustment roller; 32. Side column; 33. Pressure sensor; 34. Slider; 35. Adjustment block; 36. Adjustment spring; 37. Abutment plate; 41. Servo motor; 42. Tension adjustment roller; 43. Screw shaft; 44. Displacement block; 45. Rectangular block; 46. Support groove; 51. Place Roller; 52. Stretch roller; 53. Motor; 54. Clamping roller; 55. Sleeve column; 56. Support plate; 57. Mounting column; 58. Return spring; 59. Straight shaft; 61. Oil tank; 62. Servo hydraulic pump; 63. Solenoid proportional valve; 64. Hydraulic cylinder; 65. Molding control sensor; 71. Die; 72. Heating plate; 73. Pressing plate; 75. Vertical pipe; 76. Heating pipe; 81. Telescopic tube; 82. Water pump; 83. Water tank; 84. Heating column; 85. Temperature control box; 86. Temperature sensor; 91. Inlet control motor; 92. Outlet control motor; 93. Control roller; 94. Detection roller; 95. Through-axis tension sensor; 96. Vertical rod; 311. Rotating drum; 571. Hanging column. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0028] See also Figures 1-10 A high-precision molding equipment with adaptive tension control includes a base 1, a frame assembly 2 is fixed to the base 1 by bolts, an adaptive tension adjustment assembly 3 is provided on one side of the frame assembly 2, a tension balance adjustment assembly 4 is provided below the adaptive tension adjustment assembly 3, and the tension balance adjustment assembly 4 is inserted between the winding and unwinding assemblies 5, a high-precision upper mold control assembly 6 is provided on the top of the frame assembly 2, an upper mold 7 is fixed to the bottom of the high-precision upper mold control assembly 6 by screws, and the upper mold 7 is connected to the upper temperature control assembly 8; A control console 11 is provided on the base 1, a base 12 is provided on one side of the control console 11, and a symmetrically arranged reset cylinder 13 is fixed to the base 12 by screws; The adaptive tension adjustment assembly 3 includes an adaptive adjustment roller 31, a side column 32, a pressure sensor 33, a slider 34, and a spring connector. The middle portion of the adaptive adjustment roller 31 engages with the rotating drum 311 and rotates in engagement with it. One end of the adaptive adjustment roller 31 is connected to the spring connector, and the other end is connected to the slider 34. The slider 34 engages with the side column 32 and slides in engagement with it. One end of the spring connector abuts against the pressure sensor 33. The tension balance adjustment component 4 includes a servo motor 41, a tension adjustment roller 42, a screw shaft 43 and a displacement block 44. The servo motor 41 is connected to the screw shaft 43, the screw shaft 43 is engaged with the displacement block 44 and rotates helically. The displacement block 44 is welded to one end of the tension adjustment roller 42.

[0029] After one molding, when the material undergoes physical changes such as expansion and contraction, the tension of the film changes, and the horizontal force acting on the adaptive adjustment roller 31 changes instantaneously. The adaptive adjustment roller 31 drives the spring connector to deform, and thus responds to the tension change of the film in time to avoid the film being damaged due to hard stretching due to excessive shrinkage tension. The pressure of the spring connector squeezing the pressure sensor 33 changes, and thus the pressure sensor 33 monitors the tension change of the film in time and feeds it back to the console 11. The console 11 controls the servo motor 41 to start, and the servo motor 41 drives the screw shaft 43 to rotate. The screw shaft 43 rotates in the displacement block 44 and undergoes relative displacement through the spiral force. The displacement block 44 drives the tension adjustment roller 42 to move horizontally in the support groove 46, and thus accurately adjusts the tension of the film to be molded to a predetermined value, so as to avoid excessive tension differences between the layers of material due to different thicknesses and elastic moduli, resulting in interlayer dislocation and stratification, affecting the overall performance and appearance of the product.

[0030] Furthermore, the frame assembly 2 includes vertical frames 21 arranged equidistantly on the base 1. The vertical frames 21 are connected by cross bars 22 and fixed with bolts. A top platform 23 is provided on the top of the vertical frame 21, and a support platform 24 is provided under the top platform 23. Connecting frames 25 are welded between the vertical frames 21, and a lower mold 14 is welded to the top of the reset cylinder 13.

[0031] Furthermore, the spring connector includes an adjustment block 35, an adjustment spring 36 and an abutment plate 37. The abutment plate 37 is a cross-shaped structure. The side column 32 is welded to the side of the vertical frame 21 on the outside. The side column 32 is provided with three equidistant annular grooves. The annular grooves are embedded in the abutment plate 37 and the adjustment block 35 and slide together.

[0032] Furthermore, one end of the adjustment spring 36 is welded to the adjustment block 35, and the other end is welded to the abutment plate 37. The pressure sensor 33 is fixed to one side of the side column 32 by screws. The abutment plate 37 abuts one end of the pressure sensor 33. The pressure sensor 33 and the servo motor 41 are electrically connected to the console 11.

[0033] The adaptive adjustment roller 31 drives the adjustment block 35 to slide in the annular groove of the side column 32. The adjustment block 35 drives the adjustment spring 36 to deform, thereby promptly responding to the tension change of the membrane. After the adjustment spring 36 is deformed, the pressure on the abutment plate 37 changes, thereby enabling the pressure sensor 33 to promptly monitor the tension change of the membrane and feed it back to the console 11. The console 11 controls the servo motor 41 to start.

[0034] Furthermore, the servo motor 41 is fixed to the inner side of the vertical frame 21 on the outer side by screws, and a rectangular block 45 is welded to one end of the tension adjustment roller 42. The rectangular block 45 is fitted into the support groove 46 and slides together. The support groove 46 is welded to one side of the vertical frame 21 on the outer side.

[0035] One end of the tension adjustment roller 42 moves with the displacement block 44, and the other end drives the rectangular block 45 to move horizontally in the support groove 46, so as to realize the stable movement of the tension adjustment roller 42 in the horizontal direction, thereby adjusting the tension of the wrapping film.

[0036] Furthermore, the unwinding and rewinding assembly 5 includes an unwinding roller 51, an unwinding roller mounting part, a stretching roller 52, a motor 53 and a clamping roller 54. The unwinding roller 51 and the tension adjustment roller 42, the adaptive adjustment roller 31, and the stretching roller 52 are arranged from bottom to top and in a Z shape. The two ends of the stretching roller 52 are engaged with the sleeve column 55 and rotate together. The sleeve column 55 is symmetrically welded on one side of the vertical frame 21. The motor 53 is fixed to the support plate 56 by screws. The support plate 56 is welded to one side of the vertical frame 21. The clamping roller 54 is symmetrically arranged in an upper and lower abutment manner. The motor 53 is connected to one end of the clamping roller 54 at the bottom, and the two ends of the clamping roller 54 arranged at the top are engaged with the connecting frame 25 and rotate together.

[0037] When using the equipment to mold and composite the optical film using PET film, brightening film and diffusion film, first use the unwinding roller mounting part to fit the unwinding roller 51 with the PET film, brightening film and diffusion film, and rotate the unwinding roller 51. Then, pull the film on the unwinding roller 51 from bottom to top in a Z-shaped direction and wrap it around the tension adjustment roller 42, the adaptive adjustment roller 31 and the stretching roller 52, and finally pass it through the clamping rollers 54 to tighten the film.

[0038] Furthermore, the unwinding roller mounting member includes symmetrically arranged mounting columns 57, a return spring 58 and a straight shaft 59, wherein the mounting columns 57 on one side are provided with parallel circular grooves, and the mounting columns 57 on the other side are provided with a plurality of hanging columns 571, the circular grooves are embedded in the straight shaft 59 and slide together, one end of the return spring 58 is welded to the straight shaft 59, and the other end is welded to the bottom of the circular groove, one end of the unwinding roller 51 is connected to the straight shaft 59, and the other end is connected to the hanging column 571.

[0039] When installing the unwinding roller 51, insert one end of the unwinding roller 51 into the hanging column 571, then press the installation column 57 on the opposite side of the hanging column 571 to compress the return spring 58, so that the hanging column 571 can cooperate with the installation column 57 to engage, position and rotate the unwinding roller 51.

[0040] Furthermore, the high-precision upper mold control assembly 6 includes an oil tank 61, a servo hydraulic pump 62, an electromagnetic proportional valve 63, a hydraulic cylinder 64 and a molding control sensor 65. One side of the oil tank 61 is connected to the servo hydraulic pump 62 through a conduit, the servo hydraulic pump 62 is connected to the electromagnetic proportional valve 63 through a conduit, the electromagnetic proportional valve 63 is connected to the hydraulic cylinder 64 through a conduit, the molding control sensor 65 is installed on one end of the lower mold 14 by screws, the molding control sensor 65 and the servo hydraulic pump 62 are electrically connected to the control console 11, the oil tank 61 is fixed to the top platform 23 by screws, and the lower end of the hydraulic cylinder 64 is fixed to the upper mold 7 by screws. A pressing mold 71 is provided on the bottom surface of the upper mold 7, and the top surface of the pressing mold 71 is attached to the heating plate 72. The top of the heating plate 72 is fixed to the pressing plate 73 by screws, and the heating plate 72 is connected to the heating pipe 76 through several vertical pipes 75 arranged at equal intervals.

[0041] The reset cylinder 13 drives the lower mold 14 close to the bottom of the film to be molded, and the servo hydraulic pump 62 is started and accurately extracts the hydraulic oil in the oil tank 61. The hydraulic oil enters the hydraulic cylinder 64 through the electromagnetic proportional valve 63 to make it move, driving the upper mold 7 to descend, and finally cooperates with the lower mold 14 to mold the PET film, brightening film and diffusion film. During molding, the molding control sensor 65 on the lower mold 14 contacts the edge of the upper mold 7, and then monitors the molding pressure in real time, and feeds back to the control console 11. The control console 11 controls the servo hydraulic pump 62 to cooperate with the electromagnetic proportional valve 63 to accurately adjust the hydraulic pressure, realize closed-loop control, and improve the molding accuracy.

[0042] Furthermore, the temperature control assembly 8 includes a telescopic tube 81, a water pump 82, a water tank 83, a heating column 84, a temperature control box 85 and a temperature sensor 86. The two ends of the heating pipe 76 are connected to the symmetrically arranged telescopic tubes 81, wherein the telescopic tube 81 on one side is connected to the water pump 82, and the telescopic tube 81 on the other side is connected to the water tank 83. The water pump 82 is connected to the water tank 83 through a conduit. The temperature sensor 86 is arranged on the top of the water tank 83 and extends into the interior thereof. A heating column 84 is provided on one side of the water tank 83. The heating column 84 and the temperature sensor 86 are electrically connected to the temperature control box 85. The temperature control box 85 and the water tank 83 are both fixed on the support platform 24.

[0043] After the film is installed, the control console 11 is used to input parameters such as the molding temperature, molding pressure, and preset tension of the film on each unwinding roller 51, and the equipment is started. The temperature control box 85 uses the heating column 84 to heat the water in the water tank 83 according to the preset molding temperature, and the heating temperature is fed back in real time according to the temperature sensor 86, thereby achieving precise control of the water temperature. The water pump 82 extracts the heated water and transports it into the heating pipe 76 through the telescopic tube 81 to form a circulation. The hot water in the heating pipe 76 heats the heating plate 72 through the vertical pipe 75, and the heating plate 72 heats the mold 71 until the water temperature fed back by the temperature sensor 86 tends to be stable, thereby achieving precise temperature control of the mold 71 and improving the molding quality. Example 2

[0044] See also Figure 11 The difference between the second embodiment and the first embodiment is that a soft board molding assembly 9 is provided above the connecting frame 25, and the soft board molding assembly 9 includes an inlet control motor 91, an outlet control motor 92, a control roller 93, a detection roller 94 and a through-axis tension sensor 95. The control rollers 93 are provided with a plurality of symmetrical abutment arrangements, wherein one end of the control roller 93 located at the bottom is connected to the inlet control motor 91 and the outlet control motor 92, and the other end is engaged with the vertical rod 96 and rotates together. The two ends of the control roller 93 located at the top are engaged with the vertical rod 96 and rotate together. The detection rollers 94 include two symmetrical arrangements, one end of the detection roller 94 is connected to the through-axis tension sensor 95, and the other end is engaged with the connecting frame 25 and rotates together.

[0045] When the equipment is molding soft board materials such as electronic circuit substrates that are not suitable for continuous winding, the equipment is additionally equipped with a soft board molding component 9, and the tension values of the copper clad laminate and the prepreg are set through the control console 11. The copper clad laminate and the prepreg are passed between the control rollers 93 and wound on the side close to each other of the detection roller 94. The control console 11 adjusts the speed difference between the outlet control motor 92 and the inlet control motor 91, and then uses the control roller 93 to pull the copper clad laminate and the prepreg to control the tension. The tension of the soft board is monitored in real time through the force exerted by the soft board on the detection roller 94 and fed back to the control console 11. The control console 11 adjusts the tension of each soft board to achieve high-precision molding with adaptive tension control.

[0046] The specific usage and function of this embodiment are as follows: When using the equipment to mold and composite the PET film, the brightness enhancement film and the diffusion film into an optical film, first, one end of the unwinding roller 51 wrapped with the PET film, the brightness enhancement film and the diffusion film is inserted into the hanging post 571, and then the mounting post 57 on the opposite side of the hanging post 571 is pressed to compress the return spring 58, so that the hanging post 571 can cooperate with the mounting post 57 to engage and rotate the unwinding roller 51, and then the film on the unwinding roller 51 is pulled from bottom to top in a Z-shaped direction and is respectively wound around the tension adjustment roller 42, the adaptive adjustment roller 31 and the stretching roller 52, and finally passes through between the clamping rollers 54 to tighten the film; After the film is installed, the control console 11 is used to input parameters such as the molding temperature, molding pressure, and the preset tension of the film on each unwinding roller 51, and the equipment is started. The temperature control box 85 uses the heating column 84 to heat the water in the water tank 83 according to the preset molding temperature, and the heating temperature is fed back in real time according to the temperature sensor 86, thereby achieving precise control of the water temperature. The water pump 82 extracts the heated water and transports it into the heating pipe 76 through the telescopic pipe 81 to form a circulation. The hot water in the heating pipe 76 heats the heating plate 72 through the vertical pipe 75. The heating plate 72 heats the die 71 until the water temperature fed back by the temperature sensor 86 tends to be stable, thereby achieving precise temperature control of the die 71 and improving the molding quality. Then, the reset cylinder 13 drives the lower mold 14 close to the bottom of the film to be molded, and the servo hydraulic pump 62 is started and accurately extracts the hydraulic oil in the oil tank 61. The hydraulic oil enters the hydraulic cylinder 64 through the electromagnetic proportional valve 63 to make it move, driving the upper mold 7 to descend, and finally cooperates with the lower mold 14 to mold the PET film, the brightness enhancement film and the diffusion film. During the molding, the molding control sensor 65 on the lower mold 14 contacts the edge of the upper mold 7, thereby monitoring the molding pressure in real time and feeding it back to the control console 11. The control console 11 controls the servo hydraulic pump 62 to cooperate with the electromagnetic proportional valve 63 to accurately regulate the hydraulic pressure, realize closed-loop control, and improve the molding accuracy. After one molding, when the material undergoes physical changes such as expansion and contraction, the tension of the film changes, and the horizontal force acting on the adaptive adjustment roller 31 changes instantaneously. The adaptive adjustment roller 31 drives the adjustment block 35 to slide in the annular groove of the side column 32, and the adjustment block 35 drives the adjustment spring 36 to deform, thereby responding to the tension change of the film in time, avoiding the film from being damaged due to hard stretching due to excessive shrinkage tension. After deformation, the pressure of the adjustment spring 36 on the abutment plate 37 changes, so that the pressure sensor 33 timely monitors the tension change of the film and feeds back to the console 11, and the console 11 controls the servo motor 41 to start. The servo motor 41 drives the screw shaft 43 to rotate, and the screw shaft 43 rotates in the displacement block 44. The screw force causes relative displacement, and the displacement block 44 drives the tension adjustment roller 42 to move horizontally in the support groove 46, thereby accurately adjusting the tension of the film to be molded to a predetermined value, thereby avoiding excessive tension differences between the layers due to different thicknesses and elastic moduli, resulting in interlayer dislocation and delamination, which affects the overall performance and appearance of the product. After the tension of each film returns to normal, the upper mold 7 and the lower mold 14 are separated, and the motor 53 is restarted to drive the clamping roller 54 to rotate. The clamping roller 54 clamps the composite optical film and slides it out of the equipment, while the next section of film continues to be molded; When the equipment is molding soft board materials such as electronic circuit substrates that are not suitable for continuous winding, the equipment is additionally equipped with a soft board molding component 9, and the tension values of the copper clad laminate and the prepreg are set through the control console 11. The copper clad laminate and the prepreg are passed between the control rollers 93 and wound on the side close to each other of the detection roller 94. The control console 11 adjusts the speed difference between the outlet control motor 92 and the inlet control motor 91, and then uses the control roller 93 to pull the copper clad laminate and the prepreg to control the tension. The tension of the soft board is monitored in real time through the force exerted by the soft board on the detection roller 94 and fed back to the control console 11. The control console 11 adjusts the tension of each soft board to achieve high-precision molding with adaptive tension control.

[0047] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision molding device with adaptive tension control, comprising a base (1), a frame assembly (2) being fixed to the base (1) by bolts, characterized in that: An adaptive tension adjustment component (3) is provided on one side of the frame component (2), a tension balance adjustment component (4) is provided below the adaptive tension adjustment component (3), and the tension balance adjustment component (4) is inserted between the rewinding and unwinding components (5). A high-precision upper mold control component (6) is provided on the top of the frame component (2), and an upper mold (7) is fixed to the bottom of the high-precision upper mold control component (6) by screws, and the upper mold (7) is internally connected to the temperature control component (8) above. A control console (11) is provided on the base (1), a base (12) is provided on one side of the control console (11), and a symmetrically arranged reset oil cylinder (13) is fixed to the base (12) by screws; The adaptive tension adjustment assembly (3) comprises an adaptive adjustment roller (31), a side column (32), a pressure sensor (33), a slider (34) and a spring connector. The middle portion of the adaptive adjustment roller (31) is engaged with the rotating drum (311) and rotates in engagement with the rotating drum. One end of the adaptive adjustment roller (31) is connected to the spring connector and the other end is connected to the slider (34). The slider (34) is engaged with the side column (32) and slides in engagement with the rotating drum. One end of the spring connector abuts against the pressure sensor (33). The tension balance adjustment component (4) includes a servo motor (41), a tension adjustment roller (42), a spiral shaft (43) and a displacement block (44), wherein the servo motor (41) is connected to the spiral shaft (43), the spiral shaft (43) is engaged with the displacement block (44) and rotates in a spiral manner, and the displacement block (44) is welded to one end of the tension adjustment roller (42).

2. The high-precision molding equipment with adaptive tension control according to claim 1, characterized in that: The frame assembly (2) includes vertical frames (21) arranged at equal intervals on the base (1), the vertical frames (21) are connected by cross bars (22) and fixed with bolts, a top platform (23) is provided on the top of the vertical frames (21), a support platform (24) is provided below the top platform (23), a connecting frame (25) is welded between the vertical frames (21), and a lower mold (14) is welded to the top of the reset cylinder (13).

3. The high-precision molding equipment with adaptive tension control according to claim 1, characterized in that: The spring connector comprises an adjusting block (35), an adjusting spring (36) and an abutting plate (37); the abutting plate (37) is a cross-shaped structure; the side column (32) is welded to a side of the vertical frame (21) on the outside; the side column (32) is provided with three equidistantly arranged annular grooves; the annular grooves are engaged with the abutting plate (37) and the adjusting block (35) and are slidably fitted.

4. The high-precision molding equipment with adaptive tension control according to claim 3, characterized in that: One end of the regulating spring (36) is welded to the regulating block (35), and the other end is welded to the abutment plate (37). The pressure sensor (33) is fixed to one side of the side column (32) by screws. The abutment plate (37) abuts one end of the pressure sensor (33). The pressure sensor (33) and the servo motor (41) are electrically connected to the control console (11).

5. The high-precision molding equipment with adaptive tension control according to claim 4, characterized in that: The servo motor (41) is fixed to the inner side of the vertical frame (21) on the outer side by screws. A rectangular block (45) is welded to one end of the tension adjustment roller (42). The rectangular block (45) is fitted into the support groove (46) and slides together. The support groove (46) is welded to one side of the vertical frame (21) on the outer side.

6. The high-precision molding equipment with adaptive tension control according to claim 1, characterized in that: The unwinding and rewinding assembly (5) includes an unwinding roller (51), an unwinding roller mounting member, a stretching roller (52), a motor (53) and a clamping roller (54). The unwinding roller (51) and the tension adjustment roller (42), the adaptive adjustment roller (31) and the stretching roller (52) are arranged from bottom to top and in a Z-shaped arrangement. The two ends of the stretching roller (52) are engaged with the sleeve column (55) and rotated together. The sleeve column (55) is symmetrically welded to one side of the vertical frame (21). The motor (53) is fixed to the support plate (56) by screws. The support plate (56) is welded to one side of the vertical frame (21). The clamping roller (54) is symmetrically arranged in upper and lower contact. The motor (53) is connected to one end of the clamping roller (54) at the bottom. The two ends of the clamping roller (54) arranged at the top are engaged with the connecting frame (25) and rotated together.

7. The high-precision molding equipment with adaptive tension control according to claim 6, characterized in that: The unwinding roller mounting member includes symmetrically arranged mounting posts (57), a return spring (58) and a straight shaft (59), wherein the mounting posts (57) on one side are provided with parallel circular grooves, and the mounting posts (57) on the other side are provided with a plurality of hanging posts (571), the circular grooves being fitted with the straight shaft (59) and slidingly fitted, one end of the return spring (58) being welded to the straight shaft (59), and the other end being welded to the bottom of the circular groove, and one end of the unwinding roller (51) being connected to the straight shaft (59), and the other end being connected to the hanging posts (571).

8. The high-precision molding equipment with adaptive tension control according to claim 1, characterized in that: The high-precision upper mold control component (6) includes an oil tank (61), a servo hydraulic pump (62), an electromagnetic proportional valve (63), a hydraulic cylinder (64) and a mold pressure control sensor (65). One side of the oil tank (61) is connected to the servo hydraulic pump (62) through a conduit. The servo hydraulic pump (62) is connected to the electromagnetic proportional valve (63) through a conduit. The electromagnetic proportional valve (63) is connected to the hydraulic cylinder (64) through a conduit. The mold pressure control sensor (65) is installed on one end of the lower mold (14) by screws. The sensor (65) and the servo hydraulic pump (62) are electrically connected to the control console (11), the oil tank (61) is fixed to the top platform (23) by screws, the lower end of the hydraulic cylinder (64) is fixed to the upper mold (7) by screws, and a pressing mold (71) is provided on the bottom surface of the upper mold (7), the top surface of the pressing mold (71) is in contact with the heating plate (72), the top of the heating plate (72) is fixed to the pressing plate (73) by screws, and the heating plate (72) is connected to the heating pipe (76) through a plurality of vertical pipes (75) arranged at equal intervals.

9. The high-precision molding equipment with adaptive tension control according to claim 8, characterized in that: The temperature control assembly (8) includes a telescopic tube (81), a water pump (82), a water tank (83), a heating column (84), a temperature control box (85) and a temperature sensor (86). The two ends of the heating pipe (76) are connected to the telescopic tubes (81) arranged symmetrically, wherein the telescopic tube (81) on one side is connected to the water pump (82), and the telescopic tube (81) on the other side is connected to the water tank (83). The water pump (82) is connected to the water tank (83) through a conduit. The temperature sensor (86) is arranged on the top of the water tank (83) and extends into the interior thereof. A heating column (84) is provided on one side of the water tank (83). The heating column (84) and the temperature sensor (86) are electrically connected to the temperature control box (85). The temperature control box (85) and the water tank (83) are both fixed on the support platform (24).

10. The high-precision molding equipment with adaptive tension control according to claim 2, characterized in that: A soft board molded component (9) is provided above the connecting frame (25), and the soft board molded component (9) includes an inlet control motor (91), an outlet control motor (92), a control roller (93), a detection roller (94) and a through-axis tension sensor (95). The control roller (93) is provided with a plurality of and is symmetrically abutted in an upper and lower manner, wherein one end of the control roller (93) located at the bottom is connected to the inlet control motor (91) and the outlet control motor (92), and the other end is engaged with the vertical rod (96) and rotates in conjunction with it. Both ends of the control roller (93) located at the top are engaged with the vertical rod (96) and rotate in conjunction with it. The detection roller (94) includes two and is symmetrically arranged in an upper and lower manner, one end of the detection roller (94) is connected to the through-axis tension sensor (95), and the other end is engaged with the connecting frame (25) and rotates in conjunction with it.

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