A heating and pressure-maintaining device for a flexible circuit board

Abstract

The present invention discloses a heating and pressure-maintaining device for a flexible circuit board, which belongs to the technical field of secondary processing of circuit boards, and includes a pressure-maintaining box and a pressure-bearing seat, wherein the bottom end of the pressure-bearing seat is connected to a pushing assembly, and the top end of the pressure-bearing seat is connected to a plate-setting seat through a buffer pad. The present invention can utilize the limit change of the limit assembly to drive the magnetic seat to rotate out through the setting of a limit assembly and a torsion spring, and quickly separate the plastic paper on the top, so as to facilitate the rapid separation from the upper and lower protective plastic papers after the flexible circuit board is finalized and hot-pressed, and the protective plastic papers after the upper and lower limits are reused, so that the processing efficiency is higher, and at the same time, the setting of the preheating assembly can utilize multiple T-tubes to transport hot air flow to the upper and lower surfaces of the flexible circuit board for preheating, so as to avoid the situation where a large temperature difference occurs during hot pressing, and through the change of the air flow at the bottom of the plate-setting seat placement groove, the flexible circuit board is driven to vibrate between the two plastic papers, and the stress on the flexible circuit board after hot pressing is further reduced.

Description

Technical Field

[0001] The invention relates to the technical field of secondary processing of circuit boards, and in particular to a heating and pressure-maintaining device for flexible circuit boards. Background Art

[0002] Heating and pressurizing of flexible circuit boards refers to shaping and fixing flexible circuit boards by heating and applying pressure to improve their stability and durability, making it easier to clamp and install them when used.

[0003] During the heating and pressurizing process of current flexible circuit boards, micro-heating components such as electric heating blocks are usually used to locally heat and quickly pressurize the easily bendable parts of the flexible circuit boards and the reinforcement plates, so as to enhance the strength and stability of these parts. However, flexible circuit boards are usually made of organic materials such as polyimide during production. These materials have a large thermal expansion coefficient. During the heating and pressurizing process, local heating can easily cause internal stress in the flexible circuit boards, which may cause deformation, damage or even failure of the circuit boards. In addition, when heating and pressurizing the flexible circuit boards, it is usually necessary to manually stick plastic paper on the upper and lower surfaces of the flexible circuit boards to protect the circuit board surface from damage when under pressure. However, the sticking and removal of the plastic paper before and after shaping and pressurizing makes the heating and shaping efficiency of the flexible circuit boards low. Therefore, a heating and pressurizing device for flexible circuit boards is proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that flexible circuit boards are usually made of organic materials such as polyimide during production. These materials have a large thermal expansion coefficient. During the heating and pressure-maintaining process, local heating can easily cause internal stress in the flexible circuit board, which may cause deformation, damage or even failure of the circuit board. A flexible circuit board heating and pressure-maintaining device is proposed to solve the problem.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A heating and pressure-maintaining device for a flexible circuit board comprises a pressure-maintaining box and a pressure-bearing seat, wherein the bottom end of the pressure-bearing seat is connected with a pushing assembly, the top end of the pressure-bearing seat is connected with a plate-placing seat via a buffer pad, the plate-placing seat is provided with four placement grooves for placing flexible circuit boards, the bottom inner side wall of the placement groove is provided with a receiving groove penetrating the side wall of the plate-placing seat, and the receiving grooves on both sides are provided with roller pressing assemblies for taking and placing plastic paper below;

[0007] A magnetic seat for placing the plastic paper above is provided on the top of the storage groove, a fixed frame is fixedly connected to the end of the magnetic seat, two adjacent fixed frames are fixedly connected by a pin shaft, a limiting baffle is fixedly connected to the outer wall of the pin shaft, a limiting component is provided on one side of the limiting baffle, a micro air pump is fixedly connected to the top of the plate placement seat, a preheating component is connected to the output end of the micro air pump, and a hot pressing plate is fixedly connected to the bottom end of the pressure keeping box through a plurality of hydraulic cylinders.

[0008] Preferably, the ejection assembly consists of two electrically controlled guide rails and two sliding seats, the bottom end of the electrically controlled guide rails is fixedly connected to the top end of the pressure-keeping box, the electrically controlled guide rails are slidably connected to the sliding seats, and the top end of the sliding seat is fixedly connected to the bottom end of the pressure-bearing seat.

[0009] Preferably, the plate placement seat is provided with a suction cover and a plurality of extrusion covers at the bottom end of the placement groove, and the pressure-bearing seat is provided with a plurality of air pumps respectively used for connecting the suction cover and the extrusion cover.

[0010] Preferably, the rolling assembly consists of two winding rollers and two gear rings, the end of the winding roller located above is fixedly connected with a knob, the outer wall of the winding roller is fixedly connected to the inner wall of the gear ring, the two gear rings are meshed, and the winding roller is rotatably connected to the inner wall of the storage groove.

[0011] Preferably, a matching limiting magnetic frame is provided on the magnetic seat, torsion springs are provided on the outer side walls at both ends of the pin shaft, the fixed frame is rotatably connected to the top of the plate seat, and the pin shaft is rotatably connected to the top of the plate seat through the mounting plate.

[0012] Preferably, the limiting assembly consists of a T-shaped slider and a limiting stop rod, a hydraulic push rod is fixedly connected to the top of the plate seat, the output end of the hydraulic push rod is fixedly connected to one side wall of the T-shaped slider, the other side wall of the T-shaped slider is fixedly connected to the end of the limiting stop rod, and the T-shaped slider is slidably connected to the plate seat.

[0013] Preferably, the preheating assembly consists of a heating mesh tube and a plurality of T-tubes, a plurality of through holes are provided on the magnetic seat, the heating mesh tube is respectively connected to one end of the plurality of T-tubes, and the other two ends of the T-tubes are respectively connected to the receiving groove and the through holes.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This solution can utilize the limit change of the limit component to drive the magnetic seat to rotate out, separate the upper plastic paper from the flexible circuit board, and facilitate the rapid separation from the upper and lower protective plastic papers after the flexible circuit board is shaped and hot-pressed. The protective plastic papers after the upper and lower limits can also be reused many times, making the processing efficiency higher.

[0016] 2. This scheme can use multiple T-tubes to transport hot air flow to the upper and lower surfaces of the flexible circuit board for preheating through the setting of preheating components, suction hoods and extrusion hoods, so as to avoid large temperature differences during hot pressing. The flexible circuit board can be driven to vibrate between the two plastic papers through the changes in the air flow at the bottom of the plate placement slot, thereby further reducing the stress on the flexible circuit board after hot pressing and ensuring that the flexible circuit board is not damaged during the shaping process.

[0017] 3. This solution can quickly assemble the plastic paper used to protect the flexible circuit board on the board placement seat through the setting of the roller pressing assembly and the magnetic suction seat, so that the heating and pressure-maintaining operation of the flexible circuit board is more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a heating and pressure-maintaining device for a flexible circuit board proposed by the present invention;

[0019] Figure 2 This is an assembly diagram of a heating and pressure-maintaining device for a flexible circuit board proposed by the present invention;

[0020] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0021] Figure 4 This is a schematic structural diagram of a placement groove in a plate seat in a heating and pressure-maintaining device for a flexible circuit board proposed by the present invention;

[0022] Figure 5 This is an assembly diagram of a central plate seat of a flexible circuit board heating and pressure-maintaining device proposed by the present invention;

[0023] Figure 6 This is a schematic structural diagram of a roller pressing assembly in a heating and pressure-maintaining device for a flexible circuit board proposed by the present invention;

[0024] Figure 7 A cross-sectional view of a plate seat in a heating and pressure-maintaining device for a flexible circuit board proposed by the present invention;

[0025] Figure 8 This is a schematic structural diagram of a limiter assembly in a heating and pressure-maintaining device for a flexible circuit board proposed by the present invention;

[0026] Fig. 9 This is a schematic structural diagram of a preheating component in a flexible circuit board heating and pressure-maintaining device proposed by the present invention;

[0027] Fig.10 This is a plan view of the upper and lower plastic papers, the flexible circuit board, and the pipes under the suction cover and the extrusion cover in the flexible circuit board heating and pressure-maintaining device proposed by the present invention.

[0028] In the figure: 1. pressure-maintaining box; 2. pressure-bearing seat; 3. electric control guide rail; 4. sliding seat; 5. buffer pad; 6. plate seat; 7. suction cover; 8. pressing cover; 9. knob; 10. winding roller; 11. gear ring; 12. fixing frame; 13. magnetic seat; 14. limiting magnetic frame; 15. hydraulic push rod; 16. T-shaped slider; 17. limiting stop rod; 18. limiting stop plate; 19. pin shaft; 20. torsion spring; 21. micro air pump; 22. heating mesh tube; 23. T-shaped tube; 24. hydraulic cylinder; 25. hot pressing plate. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Example, see Figures 1 to 10 A heating and pressure-maintaining device for a flexible circuit board comprises a pressure-maintaining box 1 and a pressure-bearing seat 2, wherein the bottom end of the pressure-bearing seat 2 is connected with a pushing assembly, and the top end of the pressure-bearing seat 2 is connected with a plate-setting seat 6 through a buffer pad 5, and the plate-setting seat 6 is provided with four placement grooves for placing the flexible circuit board, and a receiving groove penetrating the side wall of the plate-setting seat 6 is provided on the inner side wall of the bottom end of the placement groove, and a roller pressing assembly for taking and placing the plastic paper below is arranged in the receiving grooves on both sides;

[0033] Furthermore, the push-out assembly is composed of two electrically controlled guide rails 3 and two sliding seats 4, the bottom end of the electrically controlled guide rails 3 is fixedly connected to the top of the pressure-keeping box 1, the electrically controlled guide rails 3 are slidably connected to the sliding seat 4, the top of the sliding seat 4 is fixedly connected to the bottom end of the pressure-bearing seat 2, the plate-setting seat 6 is provided with a suction cover 7 and a plurality of extrusion covers 8 at the bottom end of the placement groove, the pressure-bearing seat 2 is provided with a plurality of air pumps for connecting the suction cover 7 and the extrusion cover 8 respectively, the rolling assembly is composed of two winding rollers 10 and two gear rings 11, the end of the winding roller 10 located at the top is fixedly connected to a knob 9, the outer wall of the winding roller 10 is fixedly connected to the inner wall of the gear ring 11, the two gear rings 11 are meshed, and the winding roller 10 is rotatably connected to the inner wall of the storage groove;

[0034] It should be noted that: the end of the plastic paper used to protect the flexible circuit board is placed between the two winding rollers 10, and then the knob 9 is turned to drive the upper winding roller 10 to rotate, and then the upper gear ring 11 is driven to rotate. The rotation of the upper gear ring 11 will drive the meshing gear ring 11 below to rotate in the opposite direction, so that the two winding rollers 10 rotate in the opposite direction, thereby continuously and evenly pressing the plastic paper into the storage groove at the bottom of the placement groove of the plate seat 6, and then the flexible circuit board to be shaped is placed on the plastic paper in the placement groove, and then another piece of plastic paper is placed on the magnetic seat 13, and the limit magnetic frame 14 and the magnetic seat 13 are magnetically attracted to each other to limit the other piece of plastic paper, and then the electric control guide rail 3 is started to let the sliding seat 4 slide into the pressure keeping box 1, driving the plate seat 6 to move to the set position and stop, so that the hot pressing plate 25 and the placement groove of the plate seat 6 are on the same vertical plane;

[0035] The above advantages are as follows: the plastic paper for protecting the flexible circuit board can be quickly assembled on the board placement seat 6 by utilizing the cooperation of the rolling assembly, the magnetic seat 13 and the limiting magnetic frame 14, so that the heating and pressure-maintaining operation of the flexible circuit board is more efficient;

[0036] A magnetic seat 13 for placing the plastic paper above is provided at the top of the storage slot, and a fixed frame 12 is fixedly connected to the end of the magnetic seat 13. Two adjacent fixed frames 12 are fixedly connected by a pin shaft 19. A limit baffle 18 is fixedly connected to the outer wall of the pin shaft 19, and a limit assembly is provided on one side of the limit baffle 18;

[0037] Furthermore, a matching limiting magnetic frame 14 is provided on the magnetic seat 13, and torsion springs 20 are provided on the outer side walls at both ends of the pin shaft 19. The fixed frame 12 is rotatably connected to the top of the plate seat 6, and the pin shaft 19 is rotatably connected to the top of the plate seat 6 through the mounting plate. The limiting assembly consists of a T-shaped slider 16 and a limiting stopper 17. A hydraulic push rod 15 is fixedly connected to the top of the plate seat 6, and the output end of the hydraulic push rod 15 is fixedly connected to one side wall of the T-shaped slider 16, and the other side wall of the T-shaped slider 16 is fixedly connected to the end of the limiting stopper 17, and the T-shaped slider 16 is slidably connected to the plate seat 6;

[0038] It should be noted that: after the flexible circuit board is shaped and hot-pressed, the plate-setting seat 6 is moved out by sliding the sliding seat 4 on the electric control guide rail 3, and then the hydraulic push rod 15 is started to shrink, thereby driving the T-shaped slider 16 to slide. The sliding of the T-shaped slider 16 will drive the limit stopper 17 to move and disengage from the limit stopper 18. After losing the limit of the limit stopper 17, the limit stopper 18 rotates under the elastic force of the torsion spring 20 on the pin shaft 19, thereby driving the magnetic seat 13 on both ends of the pin shaft 19 to rotate, so that the magnetic seat 13 is rotated out of the placement groove of the plate-setting seat 6, so that the operator can quickly take out the shaped flexible circuit board in the placement groove;

[0039] The above advantages are as follows: in this way, the limit change of the limit assembly can be used to drive the magnetic seat 13 to rotate out, so as to separate the upper plastic paper from the flexible circuit board, so as to facilitate the rapid separation from the upper and lower protective plastic papers after the flexible circuit board is shaped and hot-pressed, and the protective plastic papers after the upper and lower limits can also be reused many times, so that the processing efficiency is higher;

[0040] The top of the plate holder 6 is fixedly connected with a micro air pump 21, the output end of the micro air pump 21 is connected with a preheating component, and the bottom end of the pressure-maintaining box 1 is fixedly connected with a hot pressing plate 25 through a plurality of hydraulic cylinders 24;

[0041] Furthermore, the preheating assembly is composed of a heating mesh tube 22 and a plurality of T-tubes 23. A plurality of through holes are provided on the magnetic seat 13. The heating mesh tube 22 is respectively connected to one end of the plurality of T-tubes 23. The other two ends of the T-tubes 23 are respectively connected to the receiving groove and the through holes.

[0042] It should be noted that during the hot pressing of the flexible circuit board, the micro air pump 21 on the plate holder 6 is started to fill the air flow into the heating mesh tube 22. The heating mesh tube 22 heats the internal air flow by electric heating. The heated air flow will enter into multiple T-tubes 23 respectively. The T-tubes 23 will transport the hot air flow through two pipe openings to the top of the lower plastic paper in the storage groove, and to the bottom of the upper plastic paper through the through hole of the magnetic seat 13, so that the hot air flow enters the upper and lower surfaces of the flexible circuit board to be shaped, which is convenient for slight preheating of the flexible circuit board before hot pressing, so that when the flexible circuit board is subsequently heated to the hot pressing part, it will not cause excessive temperature difference in different parts, so that the pressure generated during hot pressing of the flexible circuit board is relatively small, and the hydraulic cylinder 24 will start to drive the hot pressing plate 25 to move downward to heat the flexible circuit board. Hot pressing and shaping, which is a prior art, will not be described in detail here. When the hot pressing and shaping of the flexible circuit board is completed, the hot pressing plate 25 is moved up, and then the air pump in the pressure-bearing seat 2 is controlled to start, and the air is sucked out through the suction cover 7 at intervals through the air flow pipeline set in the buffer pad 5, and the air is filled in through the pressure-discharging cover 8, so that the plastic paper below the placement groove of the plate placement seat 6 is continuously filled with gas and sucked out, so that the flexible circuit board is constantly vibrated when the gas changes, which is convenient for further reducing the residual stress of the flexible circuit board after hot pressing (the plastic paper below has a certain deformation space in the storage groove, and the plastic paper above has a certain deformation space between the magnetic suction seat 13 and the limiting magnetic frame 14, so that the vibration of the flexible circuit board between the upper and lower plastic papers is equivalent to that between the protective films, ensuring the protection of the flexible circuit board);

[0043] The above benefits are as follows: multiple T-tubes 23 can be used to deliver the hot air flow provided by the micro air pump 21 to the upper and lower surfaces of the flexible circuit board for preheating, thereby avoiding a large temperature difference during hot pressing, and the change of the air flow at the bottom of the placement groove of the board placement seat 6 drives the flexible circuit board to vibrate between the two plastic papers, further reducing the stress on the flexible circuit board after hot pressing, thereby ensuring that the flexible circuit board is not damaged during the shaping process;

[0044] When the present invention is used, the end of the plastic paper used to protect the flexible circuit board is placed between the two winding rollers 10, and then the knob 9 is turned to drive the upper winding roller 10 to rotate, and then the upper gear ring 11 is driven to rotate. The rotation of the upper gear ring 11 will drive the meshing gear ring 11 below to rotate in the opposite direction, so that the two winding rollers 10 rotate in the opposite direction, so that the plastic paper is continuously and evenly pressed into the receiving groove at the bottom of the placement groove of the plate placement seat 6, and then the flexible circuit board to be shaped is placed on the plastic paper in the placement groove, and then another plastic paper is placed on the plate placement seat 6. The paper is placed on the magnetic seat 13, and the limiting magnetic frame 14 and the magnetic seat 13 are magnetically attracted to each other to limit the position of another plastic paper, and then the electric control guide rail 3 is started to make the sliding seat 4 slide into the pressure-keeping box 1, driving the plate-setting seat 6 to move to the set position and stop, so that the hot pressing plate 25 and the placement groove of the plate-setting seat 6 are on the same vertical plane, so that the plastic paper used to protect the flexible circuit board can be quickly assembled on the plate-setting seat 6 by using the cooperation of the rolling assembly, the magnetic seat 13 and the limiting magnetic frame 14, so that the heating and pressure-keeping operation of the flexible circuit board is more efficient;

[0045] After the flexible circuit board is shaped and hot-pressed, the plate-setting seat 6 is moved out by sliding the sliding seat 4 on the electric control guide rail 3, and then the hydraulic push rod 15 is started to shrink, thereby driving the T-shaped slider 16 to slide. The sliding of the T-shaped slider 16 will drive the limit stopper 17 to move and disengage from the limit stopper 18. After losing the limit of the limit stopper 17, the limit stopper 18 rotates under the elastic force of the torsion spring 20 on the pin shaft 19, thereby driving the magnetic seat 13 on both ends of the pin shaft 19 to rotate, so that the magnetic seat 13 is rotated out of the placement groove of the plate-setting seat 6, so that the operator can quickly take out the flexible circuit board that has been shaped in the placement groove. In this way, the limit change of the limit assembly can be used to drive the magnetic seat 13 to rotate out, and the upper plastic paper can be separated from the flexible circuit board, so that the flexible circuit board can be quickly separated from the upper and lower protective plastic papers after the shaping and hot pressing. The protective plastic papers after the upper and lower limits can also be reused many times, so that the processing efficiency is higher.

[0046] During the hot pressing process of the flexible circuit board, the micro air pump 21 on the plate holder 6 is started to fill the air flow into the heating network tube 22. The heating network tube 22 heats the internal air flow by electric heating. The heated air flow will enter into a plurality of T-tubes 23 respectively. The T-tubes 23 will transport the hot air flow through two pipe openings to the top of the lower plastic paper in the storage groove, and to the bottom of the upper plastic paper through the through hole of the magnetic seat 13, so that the hot air flow enters the upper and lower surfaces of the flexible circuit board to be shaped, which is convenient for slight preheating of the flexible circuit board before hot pressing, so that when the parts of the flexible circuit board to be hot pressed are heated laterally, it will not cause excessive temperature difference in different parts, so that the pressure generated during hot pressing of the flexible circuit board is small, and the hydraulic cylinder 24 is started to drive the hot pressing plate 25 to move down to hot press and shape the flexible circuit board. This is the prior art and will not be described in detail here. When the hot pressing and shaping of the flexible circuit board is completed, the hot pressing plate 25 is moved up, and then the air pump in the pressure bearing seat 2 is controlled to be started, and the air pump in the buffer pad 5 is set The fixed air flow duct sucks out gas through the suction cover 7 at intervals, and fills gas through the pressure-discharging cover 8, so that the plastic paper below the placement groove of the plate holder 6 is continuously filled with gas and sucked out, so that the flexible circuit board vibrates continuously when the gas changes, which is convenient for further reducing the residual stress of the flexible circuit board after hot pressing (the plastic paper below has a certain deformation space in the storage groove, and the plastic paper above has a certain deformation space between the magnetic suction seat 13 and the limiting magnetic frame 14, so that the vibration of the flexible circuit board between the upper and lower plastic papers is equivalent to that between the protective films, ensuring the protection of the flexible circuit board). In this way, the hot air flow provided by the micro air pump 21 can be transported to the upper and lower surfaces of the flexible circuit board for preheating by using multiple T-tubes 23, avoiding the situation of large temperature difference in hot pressing, and driving the flexible circuit board to vibrate between the two plastic papers through the change of the air flow at the bottom of the placement groove of the plate holder 6, further reducing the stress on the flexible circuit board after hot pressing, and ensuring that the flexible circuit board is not damaged during the shaping process.

[0047] The above description is only a preferred specific implementation manner 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 scheme and inventive concept 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 heating and pressure-maintaining device for a flexible circuit board, comprising a pressure-maintaining box (1) and a pressure-bearing seat (2), characterized in that: The bottom end of the pressure bearing seat (2) is connected to a pushing assembly, the top end of the pressure bearing seat (2) is connected to a plate placing seat (6) via a buffer pad (5), the plate placing seat (6) is provided with four placement grooves for placing flexible circuit boards, the bottom inner wall of the placement groove is provided with a receiving groove penetrating the side wall of the plate placing seat (6), and the receiving grooves on both sides are provided with roller pressing assemblies for taking and placing the plastic paper below; A magnetic seat (13) for placing the plastic paper above is arranged at the top of the storage groove, the end of the magnetic seat (13) is fixedly connected to a fixed frame (12), two adjacent fixed frames (12) are fixedly connected via a pin shaft (19), a limit baffle (18) is fixedly connected to the outer wall of the pin shaft (19), a limit assembly is arranged on one side of the limit baffle (18), the top of the plate placement seat (6) is fixedly connected to a micro air pump (21), the output end of the micro air pump (21) is connected to a preheating assembly, and the bottom end of the pressure-maintaining box (1) is fixedly connected to a hot pressing plate (25) via a plurality of hydraulic cylinders (24).

2. A heating and pressure-maintaining device for a flexible circuit board according to claim 1, characterized in that: The ejection assembly is composed of two electrically controlled guide rails (3) and two sliding seats (4); the bottom end of the electrically controlled guide rail (3) is fixedly connected to the top end of the pressure-keeping box (1); the electrically controlled guide rail (3) is slidably connected to the sliding seat (4); and the top end of the sliding seat (4) is fixedly connected to the bottom end of the pressure-bearing seat (2).

3. A heating and pressure-maintaining device for a flexible circuit board according to claim 1, characterized in that: The plate placement seat (6) is provided with a suction cover (7) and a plurality of pressure-discharging covers (8) at the bottom end of the placement groove, and the pressure-bearing seat (2) is provided with a plurality of air pumps respectively used for connecting the suction cover (7) and the pressure-discharging cover (8).

4. The heating and pressure-maintaining device for a flexible circuit board according to claim 1, characterized in that: The rolling assembly is composed of two winding rollers (10) and two toothed rings (11); the end of the winding roller (10) located above is fixedly connected to a knob (9); the outer wall of the winding roller (10) is fixedly connected to the inner wall of the toothed ring (11); the two toothed rings (11) are meshed with each other; and the winding roller (10) is rotatably connected to the inner wall of the storage groove.

5. The heating and pressure-maintaining device for a flexible circuit board according to claim 1, characterized in that: The magnetic seat (13) is provided with a matching limiting magnetic frame (14), and the outer side walls at both ends of the pin shaft (19) are provided with torsion springs (20). The fixed frame (12) is rotatably connected to the top of the plate seat (6), and the pin shaft (19) is rotatably connected to the top of the plate seat (6) through a mounting plate.

6. The heating and pressure-maintaining device for a flexible circuit board according to claim 1, characterized in that: The limiting assembly is composed of a T-shaped slider (16) and a limiting stop rod (17); the top of the plate holder (6) is fixedly connected to a hydraulic push rod (15); the output end of the hydraulic push rod (15) is fixedly connected to one side wall of the T-shaped slider (16); the other side wall of the T-shaped slider (16) is fixedly connected to the end of the limiting stop rod (17); and the T-shaped slider (16) is slidably connected to the plate holder (6).

7. The heating and pressure-maintaining device for a flexible circuit board according to claim 1, characterized in that: The preheating assembly is composed of a heating mesh tube (22) and a plurality of T-shaped tubes (23); a plurality of through holes are provided on the magnetic suction seat (13); the heating mesh tube (22) is respectively connected to one end of the plurality of T-shaped tubes (23); and the other two ends of the T-shaped tubes (23) are respectively connected to the receiving groove and the through holes.

Images