CN117156707B - Film pressing device for manufacturing FPC board - Google Patents
Film pressing device for manufacturing FPC board Download PDFInfo
- Publication number
- CN117156707B CN117156707B CN202311415220.6A CN202311415220A CN117156707B CN 117156707 B CN117156707 B CN 117156707B CN 202311415220 A CN202311415220 A CN 202311415220A CN 117156707 B CN117156707 B CN 117156707B
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- pressing device
- hot
- fpc board
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- 238000003825 pressing Methods 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 62
- 238000007731 hot pressing Methods 0.000 claims abstract description 37
- 238000005485 electric heating Methods 0.000 claims abstract description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000741 silica gel Substances 0.000 claims abstract description 13
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 13
- 238000005520 cutting process Methods 0.000 claims description 39
- 238000004891 communication Methods 0.000 claims description 15
- 238000007599 discharging Methods 0.000 claims description 10
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 4
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 4
- 241001330002 Bambuseae Species 0.000 claims description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 4
- 239000011425 bamboo Substances 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920006267 polyester film Polymers 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
- H05K3/28—Applying non-metallic protective coatings
- H05K3/281—Applying non-metallic protective coatings by means of a preformed insulating foil
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
- H05K3/28—Applying non-metallic protective coatings
- H05K3/282—Applying non-metallic protective coatings for inhibiting the corrosion of the circuit, e.g. for preserving the solderability
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of circuit board production, in particular to a film pressing device for FPC board manufacture, which comprises a base and a device seat above the base, wherein a hot press roller is arranged at the lower end of the device seat, a feeding mechanism positioned in front of the hot press roller is arranged on the base, the hot press roller comprises two end plates, an electric heating cylinder is hermetically connected between the two end plates, and heat-conducting silica gel is sleeved on the outer wall of the electric heating cylinder; the two end plates are provided with rotating shafts, and one end part of one rotating shaft extends to the inside of the equipment seat and is connected with a driven wheel. According to the invention, the hot-pressing roller is arranged into a hollow structure, when the temperature of the hot-pressing roller changes, the internal air pressure changes along with the temperature, the position of the piston is controlled by the air pressure, and the adjusting rod is rotated to drive the equipment seat to lift, so that the height of the hot-pressing roller is adjusted, manual intervention is not needed, the flexible and convenient operation is realized, the hot-pressing quality of the flexible circuit board is improved, and the adhesion effect of the film and the circuit board is ensured.
Description
Technical Field
The invention relates to the technical field of circuit board production, in particular to a film pressing device for manufacturing an FPC board.
Background
Flexible circuit boards (FPCs) are a technology developed in the united states for developing space rocket technology in the last 70 th century, and are a highly reliable, excellent flexible printed circuit made of a polyester film or polyimide as a base material, which is formed by embedding circuit designs on a flexible thin plastic sheet so that a large number of precision elements are stacked in a narrow and limited space, thereby forming a flexible circuit. The circuit board can be bent at will, has light folding weight, small volume, good heat dissipation and convenient installation, and breaks through the traditional interconnection technology.
The flexible circuit board film pressing refers to covering a layer of protective film on the surface of the flexible circuit board so as to increase the wear resistance, corrosion resistance, dust resistance and moisture resistance of the circuit board. The flexible circuit board is generally laminated with a polyamide film (PI film) or a polyester film (PET film) which has good flexibility, insulating property and high temperature resistance. In the manufacturing process, the film is fixed on the surface of the circuit board through a hot pressing or coating process to form a protective layer. At present, the film can be heated in the hot pressing process, so that the plasticity of the film is improved, the adhesion capability of the film and a circuit board is improved, the hot pressing temperature and the hot pressing pressure used for different circuit boards and films are different, the film is difficult to adhere to the circuit board effectively due to the too small pressure, and the film is easy to be damaged due to the too large pressure. The pressure should be properly reduced when the hot pressing temperature is high, and the pressure should be properly increased when the hot pressing temperature is low. Because the temperature fluctuation on the surface of the hot pressing roller is larger, the hot pressing quality is easy to influence, the existing hot pressing equipment is not flexible enough, corresponding measures cannot be formulated aiming at the temperature change on the surface of the hot pressing roller, and the degree of automation is lower.
Disclosure of Invention
The invention provides a film pressing device for manufacturing an FPC board, which aims at the defects in the prior art and can effectively solve the problem that the pressure in the film pressing process cannot be automatically adjusted according to the hot pressing temperature in the prior art.
In order to achieve the above purpose, the invention is realized by the following technical scheme:
the utility model provides a FPC board manufacturing is with pressing film device, includes the equipment seat of base and base top, the hot press roller is installed to the lower extreme of equipment seat, installs the feeding mechanism who is located hot press roller the place ahead on the base, the hot press roller includes two end plates, two airtight connection has an electric heat section of thick bamboo between the end plate, heat conduction silica gel has been cup jointed on the outer wall of electric heat section of thick bamboo;
the electric heating device comprises an electric heating cylinder, an end plate, a base, a rotary shaft, a pressure control mechanism, an adjusting rod, a pressure control mechanism and a pressure control mechanism, wherein the rotary shaft is arranged on the end plate, one end part of the rotary shaft extends to the inside of the equipment seat and is connected with the driven wheel, an air hole extending to the inside of the electric heating cylinder is formed in the driven wheel, a cavity for accommodating the driven wheel is formed in the equipment seat, the base is provided with the pressure control mechanism, the pressure control mechanism is provided with a communicating pipe which is movably inserted into the bottom of the equipment seat and extends to the inside of the cavity, and the base is rotatably provided with the adjusting rod which is in threaded fit with the equipment seat.
When the flexible circuit board is pressed into a film, the film and the flexible circuit board are fed into the lower part of the hot pressing roller together, the hot pressing roller is heated to a proper temperature, the air pressure in the hot pressing roller is increased due to the temperature rise and is transferred into the cavity, and then is transferred into the air pressure control mechanism from the communicating pipe inserted at the bottom of the equipment seat, so that the adjusting rod rotates.
In the film pressing device for manufacturing the FPC board, the air pressure control mechanism comprises a fixed block arranged on the base, a communication cavity communicated with the communication pipe is formed in the fixed block, a piston hole communicated with the communication cavity is formed in the end portion of the fixed block, a piston is arranged in the piston hole, a rack rod is arranged on the piston, and a tooth slot meshed with the rack rod is formed in the adjusting rod.
In the film pressing device for manufacturing the FPC board, the spring positioned behind the piston is arranged on the inner wall of the communication cavity, and the piston is disconnected with the spring.
In the film pressing device for manufacturing the FPC board, the annular conducting plates are arranged on the opposite sides of the two end plates, the two annular conducting plates are respectively connected with the two ends of the electric heating cylinder, and the electric brushes matched with the two annular conducting plates are respectively arranged on the equipment seat.
In the film pressing device for manufacturing the FPC board, the thickness of the heat conducting silica gel is 0.5-2mm.
The utility model provides a Flexible Printed Circuit (FPC) board is made and is used film pressing device, still includes the cutting mechanism of installing at the equipment seat rear side, cutting mechanism includes L shape mounting panel and two symmetrical installation cuts the cutter, two guide ways have been seted up to one side of L shape mounting panel, two the slider has all been furnished with to the inside of guide way, two all be connected with the round bar between slider and the two cutters, two spring bars are installed to the symmetry on the L shape mounting panel, two the tip of spring bar rotates respectively and connects on two round bars, install the rotatory actuating mechanism of two spring bars of drive on the L shape mounting panel.
In the film pressing device for manufacturing the FPC board, the base is further provided with the discharging mechanism positioned behind the hot pressing roller, the discharging mechanism consists of a plurality of round rollers, and the cutting knife is positioned right above between two of the round rollers.
In the film pressing device for manufacturing the FPC board, the two guide grooves are square grooves, and one ends, close to each other, of the two guide grooves are communicated.
In the film pressing device for manufacturing the FPC board, one side, opposite to the cutting knives, of the two cutting knives is a vertical surface, a tip is formed at the bottom end of the two cutting knives when the two cutting knives are combined, and the bottom of the opposite side of the two cutting knives is provided with a cutting edge.
In the film pressing device for manufacturing the FPC board, the driving mechanism comprises a motor, a gear and a belt pulley, and the driving mechanism enables the rotation directions of the two spring rods to be opposite.
Compared with the prior art, the hot-pressing roller is arranged into a hollow structure, when the temperature of the hot-pressing roller changes, the internal air pressure changes along with the temperature, the position of the piston is controlled by the air pressure, and the adjusting rod is rotated to drive the equipment seat to lift, so that the height of the hot-pressing roller is adjusted, manual intervention is not needed, the flexible and convenient hot-pressing roller is flexible and convenient, the hot-pressing quality of a flexible circuit board is improved, and the adhesion effect of a film and the circuit board is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is evident that the drawings in the following description are only some embodiments of the present invention and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a front isometric view of the present invention;
FIG. 2 is a rear isometric view of the present invention;
FIG. 3 is a schematic front view of the present invention;
FIG. 4 is a right side schematic view of the present invention;
FIG. 5 is a cross-sectional view of A-A of FIG. 4;
FIG. 6 is a cut-away view of a heated platen roller of the present invention;
FIG. 7 is a top view of the pneumatic control mechanism of the present invention;
FIG. 8 is a schematic diagram of a driving mechanism according to the present invention;
fig. 9 is an enlarged view of the structure at B in fig. 2.
Reference numerals in the drawings represent respectively: 1. a base; 2. a feeding mechanism; 3. a discharging mechanism; 4. an equipment seat; 5. a hot press roll; 501. an end plate; 502. an electric heating cylinder; 503. thermally conductive silica gel; 504. a rotating shaft; 505. driven wheel; 506. an annular conductive sheet; 6. a cutting mechanism; 601. an L-shaped mounting plate; 602. a spring rod; 603. a guide groove; 604. a slide block; 605. a cutting knife; 606. a driving mechanism; 7. an air pressure control mechanism; 701. a fixed block; 702. a communication chamber; 703. a piston; 704. a rack bar; 705. a spring; 8. and (5) adjusting the rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention is further described below with reference to examples.
Examples: referring to fig. 1-9, a film pressing device for manufacturing an FPC board comprises a base 1 and an equipment seat 4 above the base 1, wherein a hot press roller 5 is installed at the lower end of the equipment seat 4, a feeding mechanism 2 positioned in front of the hot press roller 5 is installed on the base 1, the hot press roller 5 comprises two end plates 501, an electric heating cylinder 502 is connected between the two end plates 501 in a sealing manner, and heat conducting silica gel 503 is sleeved on the outer wall of the electric heating cylinder 502. The heat conduction silica gel 503 is heated by heating the electric heating cylinder 502, the heat-resistant temperature of the common silica gel is about 200-300 ℃, and the hot pressing temperature of the flexible circuit board is about 100-200 ℃, so that the silica gel can bear the temperature required by film pressing, the soft characteristic of the silica gel can improve the laminating property of the film and the surface of the circuit board, and further the adhesion effect is improved, because the surface of the circuit board is not completely flat, the film can be laminated on the circuit board better by using the silica gel.
Referring to fig. 6, two end plates 501 are each provided with a rotation shaft 504, wherein the end of one rotation shaft 504 extends to the inside of the equipment seat 4 and is connected with a driven wheel 505, the driven wheel 505 is provided with an air hole extending to the inside of the electric heating cylinder 502, the inside of the equipment seat 4 is provided with a cavity for accommodating the driven wheel 505, the base 1 is provided with an air pressure control mechanism 7, the air pressure control mechanism 7 is provided with a communication pipe movably inserted at the bottom of the equipment seat 4 and extending to the inside of the cavity, the base 1 is rotatably provided with an adjusting rod 8 in threaded fit with the equipment seat 4, and the air pressure control mechanism 7 controls the adjusting rod 8 to rotate.
When the flexible circuit board is pressed, the film and the flexible circuit board are fed into the lower part of the hot pressing roller 5 together, the hot pressing roller 5 is heated to a proper temperature, the air pressure in the hot pressing roller 5 is increased due to the temperature rise, the air pressure is transmitted into the cavity through the air hole and then is transmitted into the air pressure control mechanism 7 from the communicating pipe inserted at the bottom of the equipment seat 4, so that the adjusting rod 8 rotates, the height of the equipment seat 4 can be correspondingly changed when the adjusting rod 8 rotates due to the threaded connection of the adjusting rod 8, the height of the equipment seat 4 can be correspondingly adjusted along with the temperature change of the hot pressing roller 5 by adjusting the parameters of each component, the flexibility of equipment is improved, manual setting is not needed, and the quality of pressed film can be improved.
It should be noted that the gap between the rotating shaft 504 and the device seat 4 will not leak gas, and the communicating tube is fixedly connected to the air pressure control mechanism 7 and movably inserted into the bottom of the device seat 4, so that when the height of the device seat 4 changes, the communicating tube will not move along with the device seat 4, the height change of the device seat 4 will not be affected, and the gap between the communicating tube and the device seat 4 will not leak gas.
Referring to fig. 5 and 7, the air pressure control mechanism 7 includes a fixed block 701 mounted on the base 1, a communication cavity 702 communicated with the communication pipe is formed in the fixed block 701, a piston hole communicated with the communication cavity 702 is formed in an end portion of the fixed block 701, a piston 703 is disposed in the piston hole, a rack bar 704 is mounted on the piston 703, and a tooth slot engaged with the rack bar 704 is formed in the adjusting lever 8. When the temperature of the hot press roller 5 changes, air pressure is transmitted into the piston hole, so that the piston 703 and the rack bar 704 move, the temperature rises, the air pressure rises, the rack bar 704 moves outwards, the temperature drops, the air pressure drops, the rack bar 704 moves inwards, and the adjusting rod 8 is meshed with the rack bar 704, thereby realizing control of the rotating direction of the adjusting rod 8, and also realizing adjustment of the height of the equipment seat 4. It should be understood that the height change of the equipment seat 4 caused by the temperature change of the thermo roll 5 is very small, and the pressure during film pressing is obviously reduced by slightly raising the thermo roll 5. This variation can be adjusted by setting the pitch of the adjustment rod 8 or the volume of the enclosed space.
Referring to fig. 7, a spring 705 is installed on the inner wall of the communication chamber 702 behind the piston 703, and the piston 703 is disconnected from the spring 705. After the hot pressing work is finished, when the equipment is stopped, the hot pressing roller 5 is not electrified, the temperature can be gradually reduced, the internal air pressure of the hot pressing roller 5 can be obviously reduced at the moment, the rack bar 704 moves backwards, the equipment seat 4 is lowered, the spring 705 is arranged behind the piston 703 to prevent the piston 703 from excessively moving backwards, and the equipment seat 4 is prevented from excessively lowering and colliding with lower parts. The piston 703 is not connected to the spring 705, and the spring 705 does not hinder movement of the piston 703 as it moves outward.
Referring to fig. 6, annular conductive plates 506 are mounted on opposite sides of the two end plates 501, the two annular conductive plates 506 are respectively connected with two ends of the electric heating cylinder 502, and brushes matched with the two annular conductive plates 506 are respectively mounted on the equipment base 4. Because the hot press roller 5 rotates during working, the electric brush and the annular conducting plate 506 are matched to supply power to the electric heating cylinder 502, so that the electric heating cylinder 502 is smart and convenient, the electric heating cylinder 502 can be a cylinder made of a resistance material, and when two ends are connected with electricity, the electric heating cylinder 502 can generate heat uniformly; the heating wires can be uniformly distributed in the wall of a cylindrical object, and all the heating wires are connected in parallel to uniformly generate heat.
Further, the thickness of the thermally conductive silica gel 503 is 0.5-2mm. The proper thickness of the heat conducting silica gel 503 is selected, so that the heat conducting effect can be ensured, and the laminating effect on the film can be effectively improved.
Referring to fig. 1-9, the invention further comprises a cutting mechanism 6 installed at the rear side of the equipment seat 4, the cutting mechanism 6 comprises an L-shaped mounting plate 601 and two symmetrically installed cutting blades 605, two guide grooves 603 are formed in one side of the L-shaped mounting plate 601, sliding blocks 604 are arranged in the two guide grooves 603, round rods are connected between the two sliding blocks 604 and the two cutting blades 605, two spring rods 602 are symmetrically installed on the L-shaped mounting plate 601, the spring rods 602 are telescopic rods, and springs are arranged in the spring rods 602, so that the length of the spring rods 602 can be recovered. The ends of the two spring rods 602 are respectively rotatably connected to the two round rods, and a driving mechanism 606 for driving the two spring rods 602 to rotate is mounted on the L-shaped mounting plate 601.
Referring to fig. 8, the drive mechanism 606 includes a motor, gears, and pulleys, and the drive mechanism 606 reverses the direction of rotation of the two spring levers 602. The two spring rods 602 are connected by gears and pulleys such that the angular velocities of the two spring rods 602 are the same but the rotation is reversed. This transmission mode is a relatively common technical means, and is not described in detail in the present invention.
When the spring rod 602 rotates, the position of the slider 604 changes, and since the front end of the spring rod 602 is in running fit with the round rod, the direction of the slider 604 is not changed by the spring rod 602, the slider 604 always moves in the guide groove 603, and the cutter 605 always faces downward. Therefore, when the driving mechanism 606 works, the two cutting knives 605 move symmetrically, when the two cutting knives 605 move downwards together after being combined, the film between the two circuit boards is punctured, then the two circuit boards move to two sides respectively, the film is completely scratched, and the two adjacent circuit boards are separated.
Referring to fig. 1-2, the base 1 is further provided with a discharging mechanism 3 located behind the hot press roller 5, the discharging mechanism 3 is composed of a plurality of round rollers, and the cutting knife 605 is located right above between two of the round rollers. The flexible circuit board reaches the round roller after being pressed with the film, cuts the film between the flexible circuit board and the adjacent circuit board when the current circuit board is not completely separated from the hot press roller 5, avoids the cutting position deviation caused by tilting the circuit board by pressing down the cutting knife 605, and provides a positioning effect on the clamping force of the circuit board by the hot press roller 5, thereby avoiding tilting the circuit board. And the cutting knife 605 is positioned between the two round rollers, and the cutting knife 605 can not contact with the round rollers when moving downwards, so that the film can be cut off by stable operation.
It should be noted that the feeding mechanism 2 and the discharging mechanism 3 are independent from each other, and a supporting roller is separately arranged between the feeding mechanism and the discharging mechanism and is positioned under the hot pressing roller 5 and matched with the feeding mechanism, when the film and the flexible circuit board reach between the hot pressing roller 5 and the supporting roller, the rotating hot pressing roller 5 rolls the film and the flexible circuit board together and feeds the film back, and the film is adhered to the circuit board through the pressure between the hot pressing roller 5 and the supporting roller.
Referring to fig. 2 and 9, both guide grooves 603 are square grooves, and one ends of the two guide grooves 603 close to each other are communicated. The structure through square groove makes and cuts the cutter 605 to have actions such as move down, translation, reset, stabs the film when cutting the cutter 605 and moves down, more is convenient for cut the film, and the one end that two guide slots 603 are close to mutually communicates, makes two cuts the cutter 605 and merges in the middle part, then moves to both sides, earlier with the film from the middle part scratch, then scratch to both sides respectively, compare in the mode of starting to scratch from one side, is difficult for taking the film, can not tear the film that will paste from the circuit board, and the during operation is more stable high-efficient.
Referring to fig. 9, the opposite sides of the two cutting blades 605 are vertical surfaces, and the bottom ends of the two cutting blades 605 form a tip when they are combined, and the bottoms of the opposite sides of the two cutting blades 605 are sharpened. The two cutting blades 605 are joined to form a tip at their bottom ends, so that the film can be effectively pierced from the middle, and the cutting blades on both sides facilitate the cutting of the film.
When the flexible circuit board is pressed, the circuit board is placed on the feeding mechanism according to the same distance, the film to be pressed is simultaneously supplied above the circuit board, the feeding mechanism feeds the circuit board below the hot press roller 5, and the film is rolled into the pressing process. When the pressed circuit board reaches the rear discharging mechanism 3, the working states of the hot press roller 5 and the driving mechanism 606 are controlled by the PLC controller, when the pressed circuit board is sent out from the lower part of the hot press roller 5, the hot press roller 5 is stopped briefly and the driving mechanism 606 is started to enable the spring rod 602 to rotate once when the end part of the circuit board reaches between the two round rollers (namely below the cutting knife 605), the state shown in fig. 9 can be set as the state when the driving mechanism 606 is standby, during the working process of the driving mechanism 606, the two cutting knives 605 move downwards simultaneously to puncture the film and scratch the film towards two sides, then return to the standby position, then the hot press roller 5 continues to rotate, the circuit board is fed backwards, the film pressing process is carried out, and the process is stopped again after the same period.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; these modifications or substitutions do not depart from the essence of the corresponding technical solutions from the protection scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. The utility model provides a film pressing device for FPC board manufacturing, includes base (1) and equipment seat (4) above base (1), hot press roller (5) are installed to the lower extreme of equipment seat (4), install feeding mechanism (2) that are located hot press roller (5) the place ahead on base (1), a serial communication port, hot press roller (5) include two end plates (501), two airtight connection has electric heat section of thick bamboo (502) between end plate (501), heat conduction silica gel (503) have been cup jointed on the outer wall of electric heat section of thick bamboo (502);
the two end plates (501) are provided with rotating shafts (504), the end part of one rotating shaft (504) extends to the inside of the equipment seat (4) and is connected with a driven wheel (505), the driven wheel (505) is provided with an air hole extending to the inside of the electric heating cylinder (502), the inside of the equipment seat (4) is provided with a cavity for accommodating the driven wheel (505), the base (1) is provided with an air pressure control mechanism (7), the air pressure control mechanism (7) is provided with a communicating pipe movably inserted at the bottom of the equipment seat (4) and extending to the inside of the cavity, the base (1) is rotatably provided with an adjusting rod (8) in threaded fit with the equipment seat (4), and the air pressure control mechanism (7) controls the adjusting rod (8) to rotate;
the pneumatic control mechanism (7) comprises a fixed block (701) arranged on the base (1), a communication cavity (702) communicated with the communication pipe is formed in the fixed block (701), a piston hole communicated with the communication cavity (702) is formed in the end part of the fixed block (701), a piston (703) is arranged in the piston hole, a rack bar (704) is arranged on the piston (703), and a tooth slot meshed with the rack bar (704) is formed in the adjusting rod (8);
a spring (705) positioned behind the piston (703) is arranged on the inner wall of the communication cavity (702), and the piston (703) is disconnected from the spring (705).
2. The film pressing device for manufacturing the FPC board according to claim 1, wherein annular conductive plates (506) are mounted on opposite sides of the two end plates (501), the two annular conductive plates (506) are respectively connected with two ends of the electric heating cylinder (502), and brushes matched with the two annular conductive plates (506) are respectively mounted on the equipment base (4).
3. The film pressing device for manufacturing the FPC board according to claim 1, wherein the thickness of the heat conductive silicone (503) is 0.5-2mm.
4. The film pressing device for manufacturing the FPC board according to claim 1, further comprising a cutting mechanism (6) arranged at the rear side of the equipment seat (4), wherein the cutting mechanism (6) comprises an L-shaped mounting plate (601) and two symmetrically-arranged cutting knives (605), two guide grooves (603) are formed in one side of the L-shaped mounting plate (601), sliding blocks (604) are arranged in the two guide grooves (603), round rods are connected between the two sliding blocks (604) and the two cutting knives (605), two spring rods (602) are symmetrically arranged on the L-shaped mounting plate (601), and the end parts of the two spring rods (602) are respectively connected to the two round rods in a rotating mode, and driving mechanisms (606) for driving the two spring rods (602) to rotate are arranged on the L-shaped mounting plate (601).
5. The film pressing device for manufacturing the FPC board according to claim 4, wherein the base (1) is further provided with a discharging mechanism (3) positioned behind the hot pressing roller (5), the discharging mechanism (3) is composed of a plurality of round rollers, and the cutting knife (605) is positioned right above two of the round rollers.
6. The film pressing device for manufacturing an FPC board according to claim 4, wherein both the guide grooves (603) are square grooves, and one ends of the guide grooves (603) close to each other are communicated.
7. The film pressing device for manufacturing an FPC board according to claim 6, wherein the opposite sides of the two cutting blades (605) are vertical surfaces, and the bottom ends of the two cutting blades (605) form a tip when they are combined, and the bottoms of the opposite sides of the two cutting blades (605) are sharpened.
8. The film pressing device for manufacturing an FPC board according to claim 4, wherein the driving mechanism (606) includes a motor, a gear, and a pulley, and the driving mechanism (606) rotates the two spring levers (602) in opposite directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311415220.6A CN117156707B (en) | 2023-10-30 | 2023-10-30 | Film pressing device for manufacturing FPC board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311415220.6A CN117156707B (en) | 2023-10-30 | 2023-10-30 | Film pressing device for manufacturing FPC board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117156707A CN117156707A (en) | 2023-12-01 |
| CN117156707B true CN117156707B (en) | 2024-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311415220.6A Active CN117156707B (en) | 2023-10-30 | 2023-10-30 | Film pressing device for manufacturing FPC board |
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| CN (1) | CN117156707B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117858362B (en) * | 2024-03-07 | 2024-05-10 | 厦门源乾电子有限公司 | Automobile-used FPC plate structure and film pressing equipment |
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| CN117156707A (en) | 2023-12-01 |
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