Production equipment and method for copper-clad plate with uniform prepreg components

Abstract

The invention discloses copper-clad plate production equipment with uniform prepreg components and a method thereof, and relates to the technical field of copper-clad plates, the copper-clad plate production equipment comprises a base plate, a glue box used for containing a glue solution is fixed to the top surface of the base plate, two supports are fixedly installed on the top surface of the base plate, and a conveying belt body used for conveying prepregs is installed between the two supports; the top surface of the base plate is fixedly provided with a dryer for drying the impregnated glass fabric; through mutual cooperation of a fifth driving motor, a supporting disc, a top column, a second connecting block, a movable plate, a mounting column, a sliding frame, a supporting frame, a mounting box, a heating rod, a second electric push rod, an annular coil pipe, a second driving motor, a lead screw and a first connecting block, air between the copper foil and the prepreg can be discharged through rolling and extrusion of the heating rod on the copper foil; in the heating process, water in the annular coil pipe flows to take away heat on the bottom face of the prepreg, and the glue solution on the bottom face of the prepreg is prevented from being melted due to heat and adhering to the top face of the supporting table.

Description

Technical Field

[0001] The invention relates to the technical field of copper clad laminates, in particular to a production device and a method for copper clad laminates with uniform prepreg components. Background Art

[0002] Copper clad laminate is the basic material of the electronics industry, mainly used for processing and manufacturing printed circuit boards. It is a plate-like material made of wood pulp paper or glass fiber cloth as a reinforcing material, impregnated with resin, covered with copper foil on one or both sides, and hot pressed. Copper clad laminate is responsible for the three major functions of PCB conductivity, insulation, and support, and has a great influence on the transmission speed, energy loss, and characteristic impedance of the signal in the circuit. Therefore, the performance, quality, processability, manufacturing level, manufacturing cost, and long-term reliability and stability of printed circuit boards depend to a large extent on copper clad laminate. Copper clad laminate accounts for 20% to 40% of the entire PCB production cost, the highest proportion of the material cost of all PCBs, and has a strong interdependence with PCB.

[0003] After searching, it is found that there are problems in the production of copper clad laminates in the prior art. In the process of producing single-sided copper clad laminates, the robot arm can be used for automatic stacking and disassembly systems to realize the automated production of copper foil substrates. In this process, the robot arm will stack the copper foil on the top surface of the semi-cured sheet. When the robot arm stacks the copper foil on the top surface of the semi-cured sheet, the copper foil and the semi-cured sheet are not completely attached, resulting in a gap between the copper foil and the semi-cured sheet, and there is air in the gap. In the subsequent hot pressing process, the air between the copper foil and the semi-cured sheet may form bubbles, resulting in a decrease in the quality of the copper clad laminate. Secondly, when the copper foil and the semi-cured sheet are heated by a heating plate, the heat of the heating plate is transferred to the bottom surface of the semi-cured sheet through the copper foil, which causes the bottom surface of the semi-cured sheet to melt. The melted semi-cured sheet will adhere to the workbench, affecting the production of the copper clad laminate. Therefore, based on the above search and combined with the prior art, a copper clad laminate production device and method with uniform semi-cured sheet composition are proposed to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a copper clad laminate production device and method with uniform prepreg composition, which has the advantages of high production quality, strong stability and high flatness, so as to solve the problem that the copper foil and the prepreg are not completely bonded to each other, resulting in a gap between the copper foil and the prepreg, and the heat of the heating plate is transferred to the bottom surface of the prepreg through the copper foil, which causes the bottom surface of the prepreg to melt and adhere to the workbench.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A copper-clad laminate production device with uniform prepreg composition comprises a substrate, a glue box for containing glue liquid is fixed on the top surface of the substrate, two brackets are fixedly installed on the top surface of the substrate, a conveyor belt body for conveying the prepreg is installed between the two brackets, and a dryer for drying the glass fiber cloth after being dipped in glue is fixedly installed on the top surface of the substrate; two limiting rollers, both of which are rotatably connected to the inside of the glue box and are used to press the glass fiber cloth into the glue liquid; a connecting hole, which is opened on one side of the glue box and is used to allow the glass fiber cloth to pass through; a collecting hopper, which is fixedly installed on one side of the glue box and is used to collect excess glue liquid; a hot pressing mechanism, which is arranged on the top surface of the substrate and is used to hot press the prepreg and copper foil. ; The hot pressing mechanism includes a support table, which is installed on the top surface of the substrate, and an annular coil is installed inside the support table, both ends of the annular coil pass through the support table and extend to the outside of the support table, a positioning frame 2 is fixedly installed on the top surface of the support table, a support box is arranged on the inner bottom surface of the positioning frame 2, a heating plate for heating is installed inside the support box, a hydraulic cylinder for driving the support box to move is installed on the top surface of the positioning frame 2, a positioning frame 2 for dividing the area is fixedly installed on the top surface of the support table, a mechanical arm for stacking semi-cured sheets and copper foil is fixedly installed on the top surface of the substrate, two storage boxes are fixedly installed on the top surface of the substrate, and a vacuum pump for extracting vacuum is installed on one side of the support box.

[0007] Furthermore, the hot pressing mechanism also includes a limit frame, which is fixedly installed on the top surface of the substrate, and the top surface of the limit frame is slidably connected to two movable plates, the top surfaces of the two movable plates are fixedly installed with a support frame, the top surface of the support frame is slidably connected to a connecting block 1, and the top surface of the support frame is fixedly installed with two mounting blocks, a screw rod is rotatably connected between the two mounting blocks, a driving motor 2 for driving the screw rod to rotate is installed on one side of the mounting block, and an electric push rod 2 is fixedly installed on the bottom surface of the connecting block 1. The bottom surface of the telescopic shaft of the bottom surface of the push rod 2 is fixedly installed with an installation box, and the interior of the installation box is rotatably connected to a heating rod, and the top surface of the limit frame is rotatably connected to a support plate, and the inner top surface of the limit frame is installed with a driving motor 5 for driving the support plate to rotate, and two top columns are fixedly installed on the top surface of the support plate, and the top surface of the limit frame is rotatably connected to a sliding frame, a connecting block 2 is fixedly installed on the top surface of the movable plate located on the left side, and a mounting column is fixedly installed on the top surface of the movable plate located on the left side, and the mounting column is slidably connected to the sliding frame.

[0008] Furthermore, two slide rails 2 for supporting the sliding of the movable plate are fixedly mounted on the top surface of the limiting frame, and a slider 2 is fixedly mounted on the bottom surface of the movable plate, and the slider 2 is slidably connected to the slide rails 2.

[0009] Furthermore, two support plates 1 are fixedly installed on the top surface of the substrate, a tension sensor 1 is fixedly installed on the top surface of the support plate 1, a bearing seat 1 is fixedly installed on the top surface of the tension sensor 1, a support roller is rotatably connected between the two bearing seats 1, a mounting plate is provided on the top surface of the substrate, two tension sensors 2 are fixedly installed on the top surface of the mounting plate, a bearing seat 2 is fixedly installed on the top surface of the tension sensor 2, a movable roller is rotatably connected between the two bearing seats 2, and an electric push rod 1 for driving the mounting plate to move is fixedly installed on the top surface of the substrate.

[0010] Furthermore, a glue concentration meter for detecting the concentration of the glue solution is fixedly installed on the inner bottom surface of the glue box, an ultrasonic vibrating rod is fixedly installed on one side of the glue box, a pump body is fixedly installed on one side of the glue box, and a hose is fixedly sleeved on the inner circular wall surface of the feed hole of the pump body.

[0011] Furthermore, one side of the rubber box is slidably connected to two scrapers, one side of the rubber box is rotatably connected to a support plate 2, one side of the support plate 2 is rotatably connected to two connecting rods 1, one end of the connecting rod 1 is rotatably connected to one side of the scraper, and the other side of the support plate 2 is fixedly installed with a support rod, one end of the support rod passes through the rubber box and is fixedly installed with an umbrella tooth 1, the outer cylindrical wall surface of the umbrella tooth 1 is meshingly connected with an umbrella tooth 2, and one side of the rubber box is installed with a driving motor 1 for driving the umbrella tooth 2 to rotate.

[0012] Furthermore, a mounting frame is fixedly installed on the top surface of the substrate, and two positioning frames 1 are slidably connected inside the mounting frame, and two rolling rollers are rotatably connected inside the positioning frame 1, and a gear is rotatably connected to one side of the interior of the mounting frame, and the outer circular wall surface of the gear is meshingly connected to two tooth plates, one side of the positioning frame 1 is fixedly connected to one side of the tooth plate, and two limiting rods are fixedly installed inside the mounting frame, and the tooth plate is slidably connected to the limiting rod, and a driving motor 3 for driving the gear to rotate is installed on one side of the mounting frame.

[0013] Furthermore, a positioning frame 1 is fixedly installed on the top surface of the substrate, a lower cutting knife is fixedly installed on the inner bottom surface of the positioning frame 1, an upper cutting knife is slidably connected to the interior of the positioning frame 1, a movable disk is rotatably connected to one side of the interior of the positioning frame 1, one side of the movable disk is rotatably connected to a connecting rod 2, one end of the connecting rod 2 is rotatably connected to a connecting rod 3, one end of the connecting rod 3 is rotatably connected to one side of the upper cutting knife, and a driving motor 4 for driving the movable disk to rotate is installed on one side of the positioning frame 1.

[0014] A method for producing a copper-clad laminate with uniform prepreg composition, comprising the following steps:

[0015] S1: The glass fiber cloth enters the glue box through the support roller, and the glass fiber cloth is placed in the glue liquid by limiting the position of the limiting roller. The tension on the glass fiber cloth before dipping is measured by the tension sensor 1, and the tension after dipping is measured by the tension sensor 2. The height of the movable roller is adjusted by the electric push rod 1 to keep the tension consistent before and after dipping.

[0016] S2: The glue concentration in the glue box is measured by a glue concentration meter. When the test result of the glue concentration meter is greater than the threshold, the pump body and the hose add solvent to the glue box, and then the ultrasonic vibrating rod is used to mix the solvent to ensure that the glue concentration on the glass fiber cloth is uniform.

[0017] S3: By adjusting the distance between the two scrapers, the glass fiber cloth enters between the two scrapers through the connecting hole. The scraper will scrape off the excess glue on the glass fiber cloth to ensure that the thickness of the glass fiber cloth is consistent after dipping. The semi-cured sheet after dipping and drying enters the installation frame, and the rolling roller inside the positioning frame rolls the semi-cured sheet to improve the flatness.

[0018] S4: After being rolled and leveled by the rolling roller, the prepreg enters the interior of the positioning frame 1, and the movable disk is driven to rotate by the driving motor 4. The movable disk, the connecting rod 2 and the connecting rod 3 cooperate to move the upper cutter up and down, and the upper cutter and the lower cutter cooperate to shear the prepreg;

[0019] S5: The heating rod is rolled and squeezed on the copper foil to expel air, so that the copper foil and the prepreg are attached and preliminarily positioned. The prepreg is placed on the support table by a robotic arm, and the copper foil is grabbed and stacked on the prepreg. The hydraulic cylinder drives the support box and the heating plate to move downward. The heating plate applies pressure and heats the copper foil and the prepreg. The water flow inside the annular coil takes away the heat from the bottom of the prepreg to prevent the bottom of the prepreg from melting. The air between the support box and the positioning frame 2 is extracted by a vacuum pump to form a vacuum, and the bubbles between the copper foil and the prepreg are further extracted.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The copper foil and the prepreg can be stacked by cooperating with each other through the provided conveyor belt body, the mechanical arm, the support platform and the storage box; the heating rod, the electric push rod 2, the annular coil, the driving motor 2, the screw and the connection block 1 can be cooperated with each other to allow the heating rod to roll and squeeze on the copper foil to discharge the air between the copper foil and the prepreg. During the heating process, the water flow inside the annular coil takes away the heat from the bottom surface of the prepreg to prevent the glue on the bottom surface of the prepreg from melting due to the heat and sticking to the top surface of the support platform;

[0022] By cooperating with each other, the hydraulic cylinder, the support box, the second positioning frame, the heating plate and the vacuum pump can form a vacuum by drawing out the air between the second positioning frame and the first positioning frame when the hydraulic cylinder and the heating plate perform heat pressing on the prepreg and the copper foil, and further draw out the bubbles between the copper foil and the prepreg, thereby ensuring a firm connection between the copper foil and the prepreg, achieving a heat pressing effect on the prepreg and the copper foil, and facilitating the subsequent use of the copper clad laminate to make printed circuit boards.

[0023] 2. The glass fiber cloth can be dipped in glue and dried to shape by the cooperation of the supporting roller, glue box, dryer, limiting roller and movable roller. The tension of the glass fiber cloth before and after dipping in glue can be kept consistent by the cooperation of the supporting roller, tension sensor 1, movable roller, tension sensor 2, electric push rod 1 and movable roller, so as to prevent wrinkles on the glass fiber cloth and improve the quality of the semi-cured sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the installation structure of the scraper and the glue box of the present invention;

[0026] Figure 3 for Figure 2 A is a magnified schematic diagram of the local structure of the middle part;

[0027] Figure 4 It is a schematic diagram of the connection structure between the limiting roller and the glue box of the present invention;

[0028] Figure 5 It is a schematic diagram of the connection structure between the bearing seat 2 and the movable roller of the present invention;

[0029] Figure 6 It is a schematic diagram of the connection structure between the rolling roller and the positioning frame 1 of the present invention;

[0030] Figure 7 It is a schematic diagram of the installation structure of the upper cutter and the positioning frame 1 of the present invention;

[0031] Figure 8 for Figure 7 A magnified schematic diagram of the local structure of B;

[0032] Fig. 9 It is a schematic diagram of the installation structure of the support platform and the second positioning frame of the present invention;

[0033] Fig.10 for Fig. 9 The enlarged schematic diagram of the local structure of C in the middle;

[0034] Fig.11 It is a bottom view schematic diagram of the connection structure between the support box and the heating plate of the present invention;

[0035] Fig.12 It is a schematic diagram of the installation structure of the annular coil and the support platform of the present invention;

[0036] Fig.13 It is a schematic diagram of the connection structure between the installation box and the heating rod of the present invention;

[0037] Fig.14 It is a schematic diagram of the orientation of the glass fiber cloth of the present invention.

[0038] In the figure: 1, substrate; 2, bracket; 3, support roller; 4, glue box; 5, dryer; 6, installation frame; 7, positioning frame 1; 8, conveyor belt body; 9, hot pressing mechanism; 10, support plate 1; 11, pump body; 12, hose; 13, heating rod; 14, tension sensor 1; 15, bearing seat 1; 16, screw rod; 17, scraper; 18, connecting hole; 19, collecting bucket; 20, drive motor 1; 21, support plate 2; 22, connecting rod 1; 23, slide rail 1; 24, slider 1; 25, limit roller; 26, glue concentration meter; 27, support rod; 28, umbrella gear 1; 29, umbrella gear 2; 30, installation plate; 31, electric push rod 1; 32, tension sensor 2; 33, bearing seat 2; 34, movable roller; 35, drive motor 2; 36, connecting block 1; 37, Mounting block; 38. Electric push rod 2; 39. Positioning frame 1; 40. Rolling roller; 41. Limiting rod; 42. Tooth plate; 43. Gear; 44. Drive motor 3; 45. Upper cutter; 46. Lower cutter; 47. Support table; 48. Positioning frame 2; 49. Limiting frame; 50. Drive motor 4; 51. Movable disk; 52. Connecting rod 2; 53. Connecting rod 3; 54. Support box; 55. Hydraulic cylinder; 56. Support frame; 57. Storage box; 58. Robot arm; 59. Positioning frame 2; 60. Drive motor 5; 61. Slide rail 2; 62. Slider 2; 63. Movable plate; 64. Support plate; 65. Sliding frame; 66. Mounting column; 67. Top column; 68. Connecting block 2; 69. Heating plate; 70. Vacuum pump; 71. Annular coil; 72. Mounting box; 73. Ultrasonic vibrator. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] In a typical implementation of this application, please refer to Figure 1 to Figure 14A copper-clad laminate production device with uniform prepreg composition and a method thereof, comprising a substrate 1, a glue box 4 for containing glue liquid is fixed on the top surface of the substrate 1, two brackets 2 are fixedly installed on the top surface of the substrate 1, a conveyor belt body 8 for conveying the prepreg is installed between the two brackets 2, a mounting frame 6 is fixedly installed on the top surface of the substrate 1, a positioning frame 7 is fixedly installed on the top surface of the substrate 1, a dryer 5 for drying the glass fiber cloth after being dipped in glue is fixedly installed on the top surface of the substrate 1, and two limiting rollers 25 are rotatably connected to the inside of the glue box 4 through bearings , used to press the glass fiber cloth into the glue liquid, the connecting hole 18 is opened on one side of the glue box 4, used to let the glass fiber cloth pass through, the collecting bucket 19 is fixedly installed on one side of the glue box 4, used to collect excess glue liquid, in actual use, the collecting bucket 19 can be connected to the glue box 4 by a pipeline, so that the internal glue liquid of the collecting bucket 19 enters the inside of the glue box 4 through the pipeline, this method requires a one-way valve to be installed in the pipeline to prevent the glue liquid inside the glue box 4 from entering the pipeline, and the hot pressing mechanism 9 is arranged on the top surface of the substrate 1, and is used to perform hot pressing on the prepreg and the copper foil;

[0041] The hot pressing mechanism 9 includes a support platform 47, which is installed on the top surface of the substrate 1 through a support, and an annular coil 71 is installed inside the support platform 47. Both ends of the annular coil 71 penetrate the support platform 47 and extend to the outside of the support platform 47. Both ends of the annular coil 71 are fixedly sleeved with flanges, and water can be connected to the inside of the annular coil 71 through the flanges. The water flows inside the annular coil 71 to cool the bottom surface of the prepreg, thereby preventing the bottom surface of the prepreg from melting during the production of the single-sided copper clad laminate.

[0042] A second positioning frame 48 is fixedly installed on the top surface of the support table 47, and a support box 54 is arranged on the inner bottom surface of the second positioning frame 48. A heating plate 69 for heating is installed inside the support box 54. A hydraulic cylinder 55 for driving the support box 54 to move is installed on the top surface of the second positioning frame 48. The bottom surface of the telescopic shaft of the hydraulic cylinder 55 passes through the second positioning frame 48 and is fixedly connected to the bottom surface of the support box 54. A second positioning frame 59 for dividing the area is fixedly installed on the top surface of the support table 47. A mechanical arm 58 for stacking prepregs and copper foils is fixedly installed on the top surface of the substrate 1. Two storage boxes 57 are fixedly installed on the top surface of the substrate 1. One storage box 57 is used to store the sheared copper foil, and the other storage box 57 is used to store the pressed copper clad laminate, which is unloaded by the mechanical arm 58. A vacuum pump 70 for extracting vacuum is installed on one side of the support box 54.

[0043] Among them, the cut semi-cured sheet is transported forward along the conveyor belt body 8, and the robot arm 58 first puts the semi-cured sheet into the interior of the positioning frame 2 59 on the storage box 57, and then the robot arm 58 grabs the copper foil and stacks it on the top surface of the semi-cured sheet, and the hydraulic cylinder 55 drives the support box 54 and the heating plate 69 to move downward until they contact the copper foil. At this time, the vacuum pump 70 will extract the internal air of the support box 54 and the storage box 57 to reduce the bubbles after pressing, and the heat of the heating plate 69 will be transferred to the semi-cured sheet, and the water flow inside the annular coil 71 will take away the heat from the bottom surface of the semi-cured sheet to prevent the bottom surface of the semi-cured sheet from melting.

[0044] The hot pressing mechanism 9 also includes a limit frame 49, which is fixedly mounted on the top surface of the substrate 1, and two movable plates 63 are slidably connected to the top surface of the limit frame 49, and a support frame 56 is fixedly mounted on the top surface of the two movable plates 63, and a connecting block 36 is slidably connected to the top surface of the support frame 56, and two mounting blocks 37 are fixedly mounted on the top surface of the support frame 56, and a screw rod 16 is rotatably connected between the two mounting blocks 37 through a bearing, and a driving motor 2 35 for driving the screw rod 16 to rotate is installed on one side of the mounting block 37, and the driving shaft of the driving motor 2 35 passes through the mounting block 37 on the right side and is fixedly connected to one end of the screw rod 16, and an electric push rod 2 38 is fixedly mounted on the bottom surface of the connecting block 1 36, and a mounting box 72 is fixedly mounted on the bottom surface of the telescopic shaft of the bottom surface of the electric push rod 2 38, and the interior of the mounting box 72 is rotatably connected to the heating rod 13 through a rotating shaft;

[0045] When the prepreg and the copper foil are stacked on the top surface of the support platform 47, the electric push rod 2 38 drives the installation box 72 and the heating rod 13 to move downward, and the heating rod 13 moves downward to contact the copper foil. The heating rod 13 generates heat to melt the glue on the prepreg, and the melted glue will stick to the copper foil. At the same time, the driving motor 2 35 drives the screw rod 16 to rotate, and the rotation of the screw rod 16 causes the connecting block 1 36 to drive the electric push rod 2 38 and the installation box 72 to move. The movement of the installation box 72 causes the heating rod 13 to roll on the copper foil, and the rolling will squeeze the gap between the copper foil and the prepreg due to the lack of fit, and discharge the air between the copper foil and the prepreg. After the heating rod 13 moves on the copper foil, the heat causes the copper foil to stick to the prepreg, thereby preliminarily positioning and preheating the copper foil.

[0046] The top surface of the limit frame 49 is rotatably connected to the support plate 64, and a driving motor 5 60 for driving the support plate 64 to rotate is installed on the inner top surface of the limit frame 49. The top surface of the driving shaft of the driving motor 5 60 passes through the limit frame 49 and is fixedly connected to the bottom surface of the support plate 64. Two top columns 67 are fixedly installed on the top surface of the support plate 64. The top surface of the limit frame 49 is rotatably connected to the sliding frame 65 through the rotating shaft. One end of the sliding frame 65 extends to the top surface of the support plate 64. A connecting block 2 68 is fixedly installed on the top surface of the left movable plate 63, and one end of the connecting block 2 68 extends to the support plate 64. The top surface of the left movable plate 63 is fixedly installed with a mounting column 66, which is slidably connected to the sliding frame 65. The top surface of the sliding frame 65 is provided with a rectangular hole for the mounting column 66 to slide, and the mounting column 66 slides inside the rectangular hole. The sliding frame 65 and the connecting block 2 68 extend to one end on the support plate 64 and are on the rotation track of the two top columns 67. The top surface of the base plate 1 is fixedly installed with a PLC controller, and the conveyor belt body 8, the heating rod 13, the hydraulic cylinder 55, the mechanical arm 58, the drive motor 5 60 and the vacuum pump 70 are all electrically connected to the PLC controller;

[0047] Among them, after the semi-cured sheet and the copper foil are overlapped on the top surface of the support platform 47, the driving motor 5 60 drives the support plate 64 to rotate, and the rotation of the support plate 64 drives the two top columns 67 to rotate, and the rotation of the top column 67 drives the connecting block 2 68 and the movable plate 63 to move forward, and at the same time makes the installation column 66 drive the sliding frame 65 to rotate, and the movable plate 63 moves forward to drive the heating rod 13 to move forward to above the copper foil. When the other top column 67 rotates and contacts one end of the sliding frame 65, the sliding frame 65 rotates outward to drive the movable plate 63 and the support frame 56 to move backward and reset, so as to prevent the support frame 56 and the installation box 72 from affecting the pressing of the copper clad laminate.

[0048] With the above technical features, this solution is aimed at the production of single-sided copper clad laminates. The conveyor body 8 is provided, and the conveyor body 8 conveys the prepreg forward. The robot arm 58 grabs the prepreg and places the prepreg on the support table 47. The robot arm 58 grabs the sheared copper foil inside the storage box 57 and stacks the copper foil on the top surface of the prepreg.

[0049] The PLC controller starts the drive motor 5 60, and the drive shaft of the drive motor 5 60 rotates to drive the support plate 64 to rotate, and the support plate 64 rotates to drive the two top pillars 67 to rotate, and the first top pillar 67 rotates to drive the connecting block 2 68 to move forward, and the connecting block 2 68 moves forward to drive the movable plate 63 to move forward, and the movable plate 63 on the left side moves forward to drive the mounting post 66 to slide inside the rectangular hole on the sliding frame 65, and the mounting post 66 slides inside the rectangular hole on the sliding frame 65 so that the sliding frame 65 rotates inward around the rotating shaft, and the movable plate 63 moves forward to drive the support frame 56 to move forward, and the support frame 56 moves forward to drive the mounting box 72 and the heating rod 13 to move above the copper foil;

[0050] The PLC controller starts the electric push rod 2 38, and the telescopic shaft of the electric push rod 2 38 moves downward, driving the installation box 72 and the heating rod 13 to move downward until the heating rod 13 abuts against the top surface of the copper foil. At this time, the heating rod 13 emits heat to heat the copper foil and the prepreg, and the heating causes the glue on the top surface of the prepreg to melt slightly, and the melted glue will stick to the copper foil. The staff connects water to the inside of the annular coil 71, and the water continuously flows inside the annular coil 71 to drive the heat of the bottom surface of the prepreg to prevent the bottom surface of the prepreg from sticking to the support platform 47;

[0051] In addition, the heating rod 13 generates heat and rolls on the copper foil to preheat the copper foil, which is convenient for subsequent hot pressing and improves the quality of the copper clad laminate product.

[0052] The driving motor 2 35 drives the screw rod 16 to rotate, and the rotation of the screw rod 16 causes the connecting block 1 36 to move forward. The connection block 1 36 moves forward to drive the electric push rod 2 38 and the installation box 72 to move forward. The installation box 72 moves forward to drive the heating rod 13 to move forward along the copper foil. The heating rod 13 will squeeze the copper foil during the forward movement, so that the copper foil and the prepreg are attached. The squeezing also causes the air between the prepreg and the copper foil to be discharged. The heating of the heating rod 13 also causes the copper foil to stick to the top surface of the prepreg, thereby preliminarily positioning the prepreg to prevent the subsequent support box 54 and the heating plate 69 from moving downward and causing the copper foil and the prepreg to deviate.

[0053] The driving motor 5 60 continues to drive the support plate 64 to rotate. When the second top column 67 rotates and contacts one end of the sliding frame 65, the sliding frame 65 rotates outward. The sliding frame 65 rotates outward and drives the movable plate 63 to move backward through the mounting column 66. The two movable plates 63 move backward and drive the support frame 56 and the heating rod 13 to move backward and reset.

[0054] Next, the telescopic shaft of the hydraulic cylinder 55 moves downward to drive the support box 54 to move downward, and the support box 54 moves downward until it abuts against the second positioning frame 59. At this time, the heating plate 69 applies pressure to the copper foil and the prepreg and generates heat for hot pressing. The heat generated by the heating plate 69 makes the prepreg and the copper foil connected together to form a copper clad laminate. Accordingly, water continuously flows inside the annular coil 71 to drive the heat of the bottom surface of the prepreg to prevent the bottom surface of the prepreg from sticking to the support platform 47.

[0055] During the hot pressing process, the PLC controller starts the vacuum pump 70, which extracts the air between the support box 54 and the positioning frame 59 to form a vacuum inside. The vacuum further extracts the bubbles between the copper foil and the prepreg, ensuring a firm connection between the copper foil and the prepreg, which helps to improve the stability and reliability of the copper clad laminate after being processed into a circuit board.

[0056] Among them, the curing temperature needs to be maintained at 200℃, the pressure increases from the initial 80psi to 375-450psi in the high pressure section, the transition point is at a material temperature of 110-130℃, and the vacuum is maintained at 28mmHg. By controlling the curing temperature, pressure, transition point and vacuum, the hot pressing process is optimized to further improve the quality of the copper clad laminate.

[0057] During this process, the movable plate 63 moves forward and backward to drive the support frame 56 and the heating rod 13 to move forward and backward. The heating rod 13 rolls and squeezes on the copper foil to initially melt the top surface of the prepreg so that the copper foil sticks to the prepreg and preheats the copper foil. In addition, the rolling of the heating rod 13 also discharges the air between the copper foil and the prepreg, and the two fit tightly. When the hydraulic cylinder 55 and the heating plate 69 perform heat pressing on the prepreg and the copper foil, the vacuum pump 70 extracts the air between the positioning frame 2 59 and the positioning frame 1 7 to form a vacuum, and further extracts the bubbles between the copper foil and the prepreg to ensure a firm connection between the copper foil and the prepreg. During the two heating processes, the water flow inside the annular coil 71 takes away the heat from the bottom surface of the prepreg to prevent the glue on the bottom surface of the prepreg from melting due to the heat and sticking to the top surface of the support platform 47, which is helpful for the production of single-sided copper clad laminates and achieves the heat pressing effect on the prepreg and the copper foil, which is helpful for the subsequent use of copper clad laminates to make printed circuit boards.

[0058] The top surface of the limiting frame 49 is fixedly installed with two slide rails 61 for supporting the sliding of the movable plate 63, and the bottom surface of the movable plate 63 is fixedly installed with a slider 62, which is slidably connected to the slide rails 61. The slide rails 61 and the slider 62 cooperate with each other to limit the movement of the movable plate 63.

[0059] Specifically, by setting the movable plate 63 , the movable plate 63 moves to drive the second slider 62 to move along the second slide rail 61 , and the second slide rail 61 and the second slider 62 cooperate to limit the movement of the movable plate 63 , thereby achieving a limiting effect on the movable plate 63 .

[0060] As a preferred implementation in this embodiment, please refer to Figure 1 to Figure 14 Two support plates 10 are fixedly installed on the top surface of the substrate 1, a tension sensor 14 is fixedly installed on the top surface of the support plate 10, a bearing seat 15 is fixedly installed on the top surface of the tension sensor 14, a support roller 3 is rotatably connected between the two bearing seats 15 through a bearing, the support roller 3 can guide the glass fiber cloth, the tension sensor 14 can measure the tension on the glass fiber cloth, a mounting plate 30 is provided on the top surface of the substrate 1, two tension sensors 32 are fixedly installed on the top surface of the mounting plate 30, and the tension sensor 32 can measure the tension of the glass fiber cloth after dipping on the movable roller 34;

[0061] A bearing seat 2 33 is fixedly installed on the top surface of the tension sensor 2 32, and a movable roller 34 is rotatably connected between the two bearing seats 2 33 through a bearing. An electric push rod 1 31 for driving the installation plate 30 to move is fixedly installed on the top surface of the base plate 1, and the top surface of the telescopic shaft of the electric push rod 1 31 is fixedly connected to the bottom surface of the installation plate 30. The tension sensor 1 14 and the tension sensor 2 32 are both electrically connected to the PLC controller;

[0062] The glass fiber cloth enters the interior of the glue box 4 along the upper surface of the support roller 3, passes through the bottom surfaces of the two limiting rollers 25, and then enters the interior of the dryer 5 along the upper surface of the movable roller 34 for drying. The tensioning force on the glass fiber cloth is measured by the tension sensor 14, and the height of the movable roller 34 is adjusted by the electric push rod 31 to adjust the tensioning force on the glass fiber cloth after dipping in glue, so that the tensioning force of the glass fiber cloth before and after dipping in glue is consistent, thereby preventing the glass fiber cloth from wrinkling.

[0063] Specifically, through the support roller 3, the glass fiber cloth passes through the upper surface of the support roller 3 and enters the interior of the glue box 4 for dipping in glue. The glass fiber cloth moves outward from the connecting hole 18 through the lower surfaces of the two limiting rollers 25. The two limiting rollers 25 can limit the glass fiber cloth to ensure that the glass fiber cloth is soaked in glue. After dipping in glue, the glass fiber cloth enters the interior of the dryer 5 along the upper surface of the movable roller 34 for drying and shaping.

[0064] During this process, the two tension sensors 14 under the support roller 3 can measure the tension on the glass fiber cloth. After the glass fiber cloth is dipped in glue, it will contact the active roller 34. The tension sensor 32 under the active roller 34 can measure the tension on the glass fiber cloth again. If the tension data measured by the tension sensor 32 is greater than the data on the tension sensor 14, the PLC controller will start the electric push rod 31. The telescopic shaft of the electric push rod 31 moves upward to drive the active roller 34 to move upward to increase the tension on the glass fiber cloth, so that the tension data on the glass fiber cloth is the same as the data on the tension sensor 14. Otherwise, the electric push rod 31 drives the active roller 34 to move downward to reduce the tension on the glass fiber cloth. By keeping the tension of the glass fiber cloth consistent before and after dipping in glue, wrinkles on the glass fiber cloth can be prevented and the quality of the semi-cured sheet can be improved.

[0065] A glue concentration meter 26 for detecting the concentration of the glue liquid is fixedly installed on the inner bottom surface of the glue box 4, and an ultrasonic vibration rod 73 is fixedly installed on one side of the glue box 4. The ultrasonic vibration rod 73 generates local high-pressure areas and low-pressure areas in the glue liquid, forming sound wave resonance and acoustic flow shear effects, which can be used to mix the glue liquid. A pump body 11 is fixedly installed on one side of the glue box 4, and a hose 12 is fixedly sleeved on the inner circular wall surface of the feed hole of the pump body 11. One end of the hose 12 is placed in a pre-prepared solvent. The ultrasonic vibration rod 73, the glue concentration meter 26 and the pump body 11 are all electrically connected to the PLC controller;

[0066] Among them, the solvent in the glue liquid inside the glue box 4 will evaporate and cause the concentration of the glue liquid to increase. The threshold value is set for the glue concentration meter 26 through the PLC controller. When the concentration of the glue liquid is greater than the threshold value, the pump body 11 is started to allow the solvent to enter the interior of the glue box 4 through the hose 12 and then the glue liquid and the solvent are mixed through the ultrasonic vibrator 73 to reduce the concentration of the glue liquid inside the glue box 4.

[0067] Specifically, by setting up the glue box 4, the glue box 4 is an open unit so that the solvent inside the glue box 4 evaporates continuously during the process of dipping the glass fiber cloth in glue. The evaporation of the solvent causes the concentration of the glue to rise. The staff puts the hose 12 into the solvent prepared in advance, and sets a threshold value for the glue concentration meter 26 through the PLC controller. When the glue concentration is greater than the threshold value, the glue concentration meter 26 transmits a signal to the PLC controller. After receiving the signal, the PLC controller starts the pump body 11. The pump body 11 starts to suck the solvent into the glue box 4 through the hose 12. At the same time, the ultrasonic vibrator 73 is started. The ultrasonic vibrator 73 is started to mix the solvent and the glue inside the glue box 4, thereby reducing the concentration of the glue, so as to ensure that the concentration of the glue on the glass fiber cloth is consistent, so that the composition on the subsequent semi-cured sheet is uniform, and the quality of the semi-cured sheet is further improved.

[0068] One side of the glue box 4 is slidably connected to two scrapers 17, one side of the glue box 4 is rotatably connected to a support plate 21, one side of the support plate 21 is rotatably connected to two connecting rods 1 22 through a rotating shaft, one end of the connecting rod 1 22 is rotatably connected to one side of the scraper 17 through a rotating shaft, and a support rod 27 is fixedly installed on the other side of the support plate 21, and the support rod 27 is rotatably connected to the glue box 4 through a bearing, one end of the support rod 27 penetrates the glue box 4 and is fixedly installed with an umbrella tooth 1 28, and the outer circumferential wall surface of the umbrella tooth 1 28 is meshingly connected with an umbrella tooth 29, and a driving motor 1 20 for driving the umbrella tooth 29 to rotate is installed on one side of the glue box 4, the driving shaft of the driving motor 1 20 penetrates the glue box 4 and is fixedly connected to one side of the umbrella tooth 29, and the driving motor 1 20 is electrically connected to the PLC controller;

[0069] The driving motor 1 20 drives the umbrella-shaped gear 29 to rotate, the umbrella-shaped gear 29 rotates to drive the umbrella-shaped gear 28 and the support rod 27 to rotate, the support rod 27 rotates to drive the support plate 21 to rotate, the support plate 21 rotates to drive the two connecting rods 1 22 to move inward, the connecting rod 1 22 rotates inward to drive the two scrapers 17 to move inward, and the two scrapers 17 are moved to a suitable position by the driving motor 1 20. When the glue after dipping passes through the scraper 17, the scraper 17 will scrape off the excess glue;

[0070] Two slide rails 23 are fixedly installed on one side of the glue box 4, and two sliders 24 are fixedly installed on one side of the scraper 17. The slider 24 is slidably connected to the support plate 21, and the slide rail 23 and the slider 24 cooperate to support the movement of the scraper 17.

[0071] Specifically, through the setting of the glue box 4, the glass fiber cloth inside the glue box 4 will pass through the connecting hole 18 after being dipped in glue, and the PLC controller starts the driving motor 20, and the driving shaft of the driving motor 20 rotates to drive the umbrella gear 29 to rotate, and the rotation of the umbrella gear 29 drives the umbrella gear 28 to rotate, and the rotation of the umbrella gear 28 drives the support rod 27 to rotate, and the rotation of the support rod 27 drives the support plate 21 to rotate, and the rotation of the support plate 21 drives the connecting rod 22 to rotate, and the two connecting rods 22 rotate to drive the scraper 17 to move inward, and the inward movement of the scraper 17 drives the slider 24 to move inward along the slide rail 23, and the two scrapers 17 move inward to a suitable position, and when the glass fiber cloth passes through the two scrapers 17, the scraper 17 will scrape off the excess glue on the glass fiber cloth to ensure that the thickness of the glass fiber cloth is consistent at all places after dipping in glue.

[0072] A mounting frame 6 is fixedly installed on the top surface of the substrate 1, and two positioning frames 39 are slidably connected inside the mounting frame 6. Two rolling rollers 40 are rotatably connected inside the positioning frame 39 through a rotating shaft. A movable hole for supporting the sliding of the positioning frame 39 is opened on one side of the mounting frame 6, and a rectangular block is fixedly installed on one side of the positioning frame 39, and the rectangular block is slidably connected to the movable hole. A gear 43 is rotatably connected to one side of the inner side of the mounting frame 6, and two tooth plates 42 are meshed and connected to the outer cylindrical wall surface of the gear 43. One side of the positioning frame 39 is fixedly connected to one side of the tooth plate 42. Two limiting rods 41 are fixedly installed inside the mounting frame 6, and the tooth plate 42 is slidably connected to the limiting rod 41, and the limiting rod 41 can limit the movement of the tooth plate 42. A driving motor 3 44 for driving the gear 43 to rotate is installed on one side of the mounting frame 6, and one end of the driving shaft of the driving motor 3 44 passes through the mounting frame 6 and is fixedly connected to one side of the gear 43, and the driving motor 3 44 is electrically connected to the PLC controller;

[0073] Among them, the driving motor three 44 drives the gear 43 to rotate, and the rotation of the gear 43 causes the tooth plate 42 to drive the positioning frame 39 to move inward, and the semi-cured sheet after being dipped in glue and dried enters between the two positioning frames 39. The rolling roller 40 inside the positioning frame 39 can roll the semi-cured sheet to improve the flatness of the semi-cured sheet.

[0074] Specifically, through the provided dryer 5, the glass fiber cloth after being dipped in glue is dried and shaped by the dryer 5 to form a semi-cured sheet, and the semi-cured sheet enters the interior of the installation frame 6, and the PLC controller starts the driving motor three 44. The driving shaft of the driving motor three 44 rotates to drive the gear 43 to rotate. The rotation of the gear 43 causes the two tooth plates 42 to move inward along the limiting rod 41. The limiting rod 41 can limit the movement of the tooth plate 42. The tooth plate 42 moves inward to drive the positioning frame 39 and the rolling roller 40 to move inward. The rolling roller 40 moves inward until it contacts the top and bottom surfaces of the semi-cured sheet. The rolling roller 40 can roll the top and bottom surfaces of the semi-cured sheet to improve the flatness of the semi-cured sheet.

[0075] A positioning frame 7 is fixedly installed on the top surface of the substrate 1, a lower cutter 46 is fixedly installed on the inner bottom surface of the positioning frame 7, an upper cutter 45 is slidably connected to the interior of the positioning frame 7, a track is installed on one side of the interior of the positioning frame 7, a sliding seat is installed on one side of the upper cutter 45, the sliding seat is slidably connected to the track, a movable disk 51 is rotatably connected to one side of the interior of the positioning frame 7, a connecting rod 2 52 is rotatably connected to one side of the movable disk 51 through a rotating shaft, one end of the connecting rod 2 52 is rotatably connected to a connecting rod 3 53 through a rotating shaft, one end of the connecting rod 3 53 is rotatably connected to one side of the upper cutter 45 through a rotating shaft, a driving motor 4 50 for driving the movable disk 51 to rotate is installed on one side of the positioning frame 7, one end of the driving shaft of the driving motor 4 50 passes through the positioning frame 7 and is fixedly connected to one side of the movable disk 51, and the driving motor 4 50 is electrically connected to the PLC controller;

[0076] Among them, driving motor four 50 drives movable disk 51 to rotate, the rotation of movable disk 51 drives connecting rod two 52 to rotate, the rotation of connecting rod two 52 drives connecting rod three 53 to rotate, the rotation of connecting rod three 53 drives the upper cutter 45 to move up and down, and the upper cutter 45 moves up and down to cooperate with the lower cutter 46 to shear the semi-cured sheet.

[0077] Specifically, through the positioning frame 7, the semi-cured sheet enters the interior of the positioning frame 7 after being rolled and leveled by two sets of rolling rollers 40. The staff starts the driving motor 4 50. The driving shaft of the driving motor 4 50 rotates to drive the movable disk 51 to rotate. The rotation of the movable disk 51 drives the connecting rod 2 52 to rotate. The rotation of the connecting rod 2 52 drives the connecting rod 3 53 to rotate. The rotation of the connecting rod 3 53 drives the upper cutting knife 45 to move up and down. The upper cutting knife 45 moves up and down and cooperates with the lower cutting knife 46 to shear the semi-cured sheet, thereby achieving the shearing effect of the semi-cured sheet.

[0078] Through the setting of the glue box 4, the solvent in the glue liquid inside the glue box 4 will volatilize to increase the concentration of the glue liquid. The threshold value is set for the glue concentration meter 26 through the PLC controller. When the concentration of the glue liquid is greater than the threshold value, the pump body 11 is started to allow the solvent to enter the inside of the glue box 4 through the hose 12 and then the glue liquid and the solvent are mixed through the ultrasonic vibration rod 73 to reduce the concentration of the glue liquid inside the glue box 4.

[0079] Secondly, the glass fiber cloth enters the interior of the glue box 4 along the upper surface of the support roller 3, passes through the bottom surfaces of the two limiting rollers 25, and then enters the interior of the dryer 5 along the upper surface of the movable roller 34 for drying. The tension force on the glass fiber cloth is measured by the tension sensor 14, and the height of the movable roller 34 is adjusted by the electric push rod 31 to adjust the tension force on the glass fiber cloth after dipping, so that the tension force of the glass fiber cloth before and after dipping is consistent, thereby preventing the glass fiber cloth from wrinkling;

[0080] The driving motor 3 44 drives the gear 43 to rotate, and the rotation of the gear 43 causes the tooth plate 42 to drive the positioning frame 1 39 to move inward, and the prepreg after being dipped in glue and dried enters between the two positioning frames 1 39, and the rolling roller 40 inside the positioning frame 1 39 can roll the prepreg to improve the flatness of the prepreg;

[0081] Next, the driving motor 5 60 drives the support plate 64 to rotate, and the rotation of the support plate 64 drives the two top columns 67 to rotate, and the rotation of the top columns 67 drives the connecting block 2 68 and the movable plate 63 to move forward, and at the same time, the mounting column 66 drives the sliding frame 65 to rotate, and the movable plate 63 moves forward to drive the heating rod 13 to move forward to above the copper foil;

[0082] When the prepreg and the copper foil are superimposed on the top surface of the support platform 47, the electric push rod 2 38 drives the installation box 72 and the heating rod 13 to move downward, and the heating rod 13 moves downward to contact the copper foil. The heating rod 13 generates heat to melt the glue on the prepreg, and the melted glue will stick to the copper foil. At the same time, the driving motor 2 35 drives the screw rod 16 to rotate, and the rotation of the screw rod 16 causes the connecting block 1 36 to drive the electric push rod 2 38 and the installation box 72 to move. The movement of the installation box 72 causes the heating rod 13 to roll on the copper foil, and the rolling will squeeze the gap between the copper foil and the prepreg due to the lack of fit, and discharge the air between the copper foil and the prepreg. After the heating rod 13 moves on the copper foil, the heat causes the copper foil to stick to the prepreg, thereby preliminarily positioning and preheating the copper foil.

[0083] In addition, when the other top column 67 rotates and contacts one end of the sliding frame 65, the sliding frame 65 rotates outward to drive the movable plate 63 and the support frame 56 to move backward and reset, preventing the support frame 56 and the installation box 72 from affecting the pressing of the copper clad laminate;

[0084] The cut semi-cured sheet is transported forward along the conveyor belt body 8. The robot arm 58 first places the semi-cured sheet into the interior of the positioning frame 2 59 on the storage box 57. Then the robot arm 58 grabs the copper foil and stacks it on the top surface of the semi-cured sheet. The hydraulic cylinder 55 drives the support box 54 and the heating plate 69 to move downward until they come into contact with the copper foil. At this time, the vacuum pump 70 will extract the internal air of the support box 54 and the storage box 57 to reduce bubbles after pressing. The heat of the heating plate 69 will be transferred to the semi-cured sheet. The water flow inside the annular coil 71 takes away the heat from the bottom surface of the semi-cured sheet to prevent the bottom surface of the semi-cured sheet from melting, which is helpful for the production of copper clad laminates.

[0085] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A copper clad laminate production equipment with uniform prepreg composition, characterized in that: include: A substrate (1), a glue box (4) for containing glue liquid is fixed on the top surface of the substrate (1), two brackets (2) are fixedly installed on the top surface of the substrate (1), a conveyor belt body (8) for conveying prepreg is installed between the two brackets (2), and a drying machine (5) for drying the glass fiber cloth after being dipped in glue is fixedly installed on the top surface of the substrate (1); Two limiting rollers (25), both of which are rotatably connected to the inside of the glue box (4) and are used to press the glass fiber cloth into the glue liquid; A communication hole (18), the communication hole (18) being provided on one side of the glue box (4) and being used for allowing the glass fiber cloth to pass through; A collecting hopper (19), the collecting hopper (19) being fixedly mounted on one side of the glue box (4) and used for collecting excess glue liquid; A heat pressing mechanism (9), the heat pressing mechanism (9) being arranged on the top surface of the substrate (1) and used for heat pressing the prepreg and the copper foil; The hot pressing mechanism (9) comprises a support platform (47), wherein the support platform (47) is mounted on the top surface of the substrate (1), an annular coil (71) is mounted inside the support platform (47), both ends of the annular coil (71) pass through the support platform (47) and extend to the outside of the support platform (47), a second positioning frame (48) is fixedly mounted on the top surface of the support platform (47), a support box (54) is arranged on the inner bottom surface of the second positioning frame (48), and a support box (54) is mounted inside the support box (54). A heating plate (69) for heating is provided, a hydraulic cylinder (55) for driving the support box (54) to move is installed on the top surface of the second positioning frame (48), a positioning frame (59) for dividing the area is fixedly installed on the top surface of the support platform (47), a mechanical arm (58) for stacking prepregs and copper foils is fixedly installed on the top surface of the substrate (1), two storage boxes (57) are fixedly installed on the top surface of the substrate (1), and a vacuum pump (70) for extracting vacuum is installed on one side of the support box (54).

2. The equipment for producing copper-clad laminates with uniform prepreg composition according to claim 1, characterized in that: The hot pressing mechanism (9) also includes a limit frame (49), the limit frame (49) is fixedly mounted on the top surface of the substrate (1), the top surface of the limit frame (49) is slidably connected to two movable plates (63), the top surfaces of the two movable plates (63) are fixedly mounted with a support frame (56), the top surface of the support frame (56) is slidably connected to a connecting block (36), the top surface of the support frame (56) is fixedly mounted with two mounting blocks (37), a screw rod (16) is rotatably connected between the two mounting blocks (37), a driving motor (35) for driving the screw rod (16) to rotate is mounted on one side of the mounting block (37), an electric push rod (38) is fixedly mounted on the bottom surface of the connecting block (36), the electric push rod (38) The bottom surface of the telescopic shaft of the bottom surface of (38) is fixedly installed with an installation box (72), and the interior of the installation box (72) is rotatably connected to a heating rod (13). The top surface of the limit frame (49) is rotatably connected to a support plate (64). The internal top surface of the limit frame (49) is installed with a driving motor five (60) for driving the support plate (64) to rotate. Two top columns (67) are fixedly installed on the top surface of the support plate (64). The top surface of the limit frame (49) is rotatably connected to a sliding frame (65). A connecting block two (68) is fixedly installed on the top surface of the movable plate (63) located on the left side. A mounting column (66) is fixedly installed on the top surface of the movable plate (63) located on the left side. The mounting column (66) is slidably connected to the sliding frame (65).

3. The equipment for producing copper-clad laminates with uniform prepreg composition according to claim 2, characterized in that: The top surface of the limiting frame (49) is fixedly mounted with two slide rails (61) for supporting the sliding of the movable plate (63), and the bottom surface of the movable plate (63) is fixedly mounted with a slider (62), and the slider (62) is slidably connected to the slide rail (61).

4. The equipment for producing copper-clad laminates with uniform prepreg composition according to claim 1, characterized in that: Two support plates (10) are fixedly mounted on the top surface of the base plate (1), a tension sensor (14) is fixedly mounted on the top surface of the support plate (10), a bearing seat (15) is fixedly mounted on the top surface of the tension sensor (14), a support roller (3) is rotatably connected between the two bearing seats (15), a mounting plate (30) is provided on the top surface of the base plate (1), two tension sensors (32) are fixedly mounted on the top surface of the mounting plate (30), a bearing seat (33) is fixedly mounted on the top surface of the tension sensor (32), a movable roller (34) is rotatably connected between the two bearing seats (33), and an electric push rod (31) for driving the mounting plate (30) to move is fixedly mounted on the top surface of the base plate (1).

5. The equipment for producing copper-clad laminates with uniform prepreg composition according to claim 1, characterized in that: A glue concentration meter (26) for detecting the concentration of glue liquid is fixedly installed on the inner bottom surface of the glue box (4), an ultrasonic vibration rod (73) is fixedly installed on one side of the glue box (4), a pump body (11) is fixedly installed on one side of the glue box (4), and a hose (12) is fixedly sleeved on the inner circular wall surface of the feed hole of the pump body (11).

6. The equipment for producing copper-clad laminates with uniform prepreg composition according to claim 5, characterized in that: One side of the rubber box (4) is slidably connected to two scrapers (17), one side of the rubber box (4) is rotatably connected to a support plate 2 (21), one side of the support plate 2 (21) is rotatably connected to two connecting rods 1 (22), one end of the connecting rod 1 (22) is rotatably connected to one side of the scraper (17), the other side of the support plate 2 (21) is fixedly installed with a support rod (27), one end of the support rod (27) passes through the rubber box (4) and is fixedly installed with an umbrella tooth 1 (28), the outer circumferential wall surface of the umbrella tooth 1 (28) is meshingly connected with an umbrella tooth 2 (29), and one side of the rubber box (4) is installed with a driving motor 1 (20) for driving the umbrella tooth 2 (29) to rotate.

7. The equipment for producing copper-clad laminates with uniform prepreg composition according to claim 1, characterized in that: A mounting frame (6) is fixedly mounted on the top surface of the substrate (1); two positioning frames (39) are slidably connected inside the mounting frame (6); two rolling rollers (40) are rotatably connected inside the positioning frame (39); a gear (43) is rotatably connected to one side of the interior of the mounting frame (6); two tooth plates (42) are meshingly connected to the outer circumferential wall of the gear (43); one side of the positioning frame (39) is fixedly connected to one side of the tooth plate (42); two limiting rods (41) are fixedly mounted inside the mounting frame (6); the tooth plate (42) is slidably connected to the limiting rod (41); and a driving motor (44) for driving the gear (43) to rotate is mounted on one side of the mounting frame (6).

8. The equipment for producing copper-clad laminates with uniform prepreg composition according to claim 1, characterized in that: A positioning frame (7) is fixedly mounted on the top surface of the base plate (1), a lower cutter (46) is fixedly mounted on the inner bottom surface of the positioning frame (7), an upper cutter (45) is slidably connected to the interior of the positioning frame (7), a movable disk (51) is rotatably connected to one side of the interior of the positioning frame (7), a connecting rod (52) is rotatably connected to one side of the movable disk (51), one end of the connecting rod (52) is rotatably connected to a connecting rod (53), one end of the connecting rod (53) is rotatably connected to one side of the upper cutter (45), and a driving motor (50) for driving the movable disk (51) to rotate is mounted on one side of the positioning frame (7).

9. A method for producing a copper-clad laminate with uniform prepreg composition, used for a copper-clad laminate production device with uniform prepreg composition as claimed in any one of claims 1 to 8, characterized in that: The steps include: S1: The glass fiber cloth enters the glue box (4) through the support roller (3), and the glass fiber cloth is placed in the glue liquid by limiting the position of the limiting roller (25). The tension on the glass fiber cloth before dipping in glue is measured by the tension sensor 1 (14), and the tension on the glass fiber cloth after dipping in glue is measured by the tension sensor 2 (32). The height of the movable roller (34) is adjusted by the electric push rod 1 (31) to keep the tension consistent before and after dipping in glue. S2: The concentration of the glue in the glue box (4) is measured by a glue concentration meter (26). When the detection result of the glue concentration meter (26) is greater than a threshold value, the pump body (11) and the hose (12) add solvent to the glue box (4), and then mix the solvent by an ultrasonic vibration rod (73) to ensure that the glue concentration on the glass fiber cloth is uniform. S3: By adjusting the distance between the two scrapers (17), the glass fiber cloth enters between the two scrapers (17) through the connecting hole (18), and the scraper (17) scrapes off the excess glue on the glass fiber cloth to ensure that the thickness of the glass fiber cloth is consistent after dipping. The semi-cured sheet after dipping and drying enters the installation frame (6), and the rolling roller (40) inside the positioning frame (39) rolls the semi-cured sheet to improve the flatness; S4: After being rolled and leveled by the rolling roller (40), the prepreg enters the interior of the positioning frame 1 (7), and the movable disk (51) is driven to rotate by the driving motor 4 (50). The movable disk (51), the connecting rod 2 (52) and the connecting rod 3 (53) cooperate to move the upper cutter (45) up and down, and the upper cutter (45) and the lower cutter (46) cooperate to shear the prepreg; S5: The heating rod (13) is rolled and pressed on the copper foil to expel air, so that the copper foil and the prepreg are attached and preliminarily positioned. The prepreg is placed on the support table (47) by the mechanical arm (58), and the copper foil is grabbed and stacked on the prepreg. The hydraulic cylinder (55) drives the support box (54) and the heating plate (69) to move downward. The heating plate (69) applies pressure to the copper foil and the prepreg and heats them. The water flow inside the annular coil (71) takes away the heat from the bottom surface of the prepreg to prevent the bottom surface of the prepreg from melting. The air between the support box (54) and the positioning frame 2 (59) is extracted by the vacuum pump (70) to form a vacuum, and the bubbles between the copper foil and the prepreg are further extracted.

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