TW202231494A - Lamination molding system and lamination molding method having a vacuum laminating device for carrying out lamination formation in a vacuum state chamber, and at least two consecutive stamping devices, etc. - Google Patents

Abstract

The present invention provides a lamination molding system and a lamination molding method which can favorably carry out the lamination molding of a lamination molded product. In the lamination forming system (1) including a vacuum laminating device (12) and a stamping device (13, 14), the lamination molding system (1) has: a vacuum laminating device (12) for carrying out lamination formation in a vacuum state chamber (C); at least two consecutive stamping devices installed in the post-process of the above-mentioned vacuum laminating device (12) and having position control elements, namely, the first stamping devices (13) with the servo motor (315) as the driving source and the second stamping device (14) with the servo motor (415) as the driving source.

Description

Lamination forming system and lamination forming method

The present invention relates to a lamination molding system including a vacuum lamination apparatus and a press apparatus, and a lamination formation method using the vacuum lamination apparatus and the press apparatus.

As a lamination molding system provided with a vacuum lamination apparatus and a press apparatus, there exist a structure provided with one press apparatus and a structure provided with two press apparatuses in the post-process of a vacuum lamination apparatus. The content described in patent document 1 is known as a structure provided with one press apparatus in the post-process of a vacuum lamination apparatus. The flattening press apparatus arrange|positioned in the post-process of the vacuum lamination apparatus of patent document 1 is equipped with a limit switch, and detects clamping of an intermediate laminated product. In addition, the contents described in Patent Document 2 and Patent Document 3 are known as arranging two press apparatuses in the post-process of the vacuum lamination apparatus. In particular, Patent Document 3 describes that at least one of the pair of metal plates can be advanced and retracted toward the other by the operation of the servo motor by the second flat press mechanism 3 . In addition, it is described that the number of revolutions of the servo motor 53 is controlled by a servo amplifier (not shown) based on a command signal from a programmable logic controller (PLC) and distance information between the pressure blocks 46 and 47 fed back. [Prior Art Literature] [Patent Literature]

Patent Document 1: Japanese Patent Laid-Open No. 2005-66967 Patent Document 2: Japanese Patent Laid-Open No. 2002-120100 Patent Document 3: Japanese Patent Laid-Open No. 2020-28980

(The problem that the invention intends to solve)

However, in the above-mentioned Patent Document 3, the following problems may arise because only the second plane pressing mechanism 3 presses the laminated molded product based on the distance information. That is, in the first flat press mechanism, since the laminated molded product is only pressed with a predetermined pressure, the laminated molded product conveyed from the first flat press mechanism to the second flat press mechanism has thickness unevenness. Therefore, in some laminated molded products, even if the second flat press mechanism is used to press at a desired distance, the final molded product may be pushed in such a way that the thickness is uneven and the desired distance is barely set. As a result of the pressing, a pressure higher than an imaginary pressure may occur, and the laminated (resin) film may melt and flow out to the side of the laminated molded product.

In addition, when a hydraulic cylinder controlled by a general pressure control valve is used in the first plane press mechanism, there is a problem that the pressure control response is poor in the press process. Other subjects and novel features will be apparent from the description of this specification and the accompanying drawings. (Technical means to solve problems)

A lamination forming system according to an embodiment is a lamination forming system including a vacuum laminating apparatus and a pressing apparatus, a vacuum laminating apparatus that performs lamination forming in a vacuum chamber, and at least two continuous pressing apparatuses installed in a subsequent process of the vacuum laminating apparatus. Each has a position control element. (Compared to the efficacy of the prior art)

The effects of the present invention are as follows. According to the above-mentioned one embodiment, it is applied to, for example, a lamination molding system, etc., and it is possible to provide a lamination molding system which can perform lamination molding of a lamination molding product favorably.

Regarding the lamination molding system 1 according to the first embodiment of the present invention, the vacuum lamination apparatus 12 , the first press apparatus 13 , and the second press apparatus 14 will be described with reference to FIG. 1 showing a part of the cross section. In the lamination forming system 1, two press apparatuses 13 and 14 of the first press apparatus 13 and the second press apparatus 14 are continuously installed in the subsequent process of the vacuum lamination apparatus 12 . Moreover, the lamination|stacking molding system 1 is equipped with the carrier film conveying apparatus 15 in the pre-process of the vacuum lamination apparatus 12, and is provided with the carrier film winding apparatus 16 in the post-process of the 2nd press apparatus 14. FIG. Furthermore, the lamination forming system 1 includes a control device 17 . The said control apparatus 17 is connected to the vacuum lamination apparatus 12, the 1st press apparatus 13, the 2nd press apparatus 14, the carrier film conveying apparatus 15, and the carrier film winding apparatus 16, and controls the lamination molding system 1 whole.

The carrier film conveying device 15 will be described first in order from the previous process. The carrier film conveying apparatus 15 which also functions as a conveying apparatus and a tensioning apparatus for the substrate A1 and the laminated film A2 includes the unwinding roller 511 and the driven roller 512 on the lower side. The carrier film F1 unwound from the unwinding drum 511 changes direction in the horizontal state at the portion of the driven drum 512 . A mounting table portion 513 on which the substrate A1 and the laminated film A2, which are to-be-molded materials, which are superimposed and conveyed from the previous process, are mounted is provided at the portion where the carrier film F1 is in a level state. In addition, the carrier film conveying device 15 includes an upper unwinding roller 513 and a driven roller 515, and the upper carrier film F2 unwound from the unwinding roller 514 is overlapped at the portion of the driven roller 515 and is composed of the substrate A1 and the laminated film A2. on the laminated molded product A3. The board|substrate A1 and the laminated film A2 are conveyed by these carrier films F1 and F2. Furthermore, by laminating and molding in the vacuum laminating apparatus 12, the first pressing apparatus 13, and the second pressing apparatus 14 via the carrier films F1 and F2, the lamination film A2 is prevented from being melted and attached to the apparatus portion. In addition, the use of the carrier films F1 and F2 also has the advantage of exerting a certain buffering effect when pressurizing the primary laminated molded product A4 and the secondary laminated molded product A5, especially in the first press device 13 and the second press device 14 .

Next, the vacuum lamination apparatus 12 arrange|positioned in the post-process of the carrier film conveying apparatus 15 is demonstrated. The vacuum lamination apparatus 12 is an apparatus that pressurizes the laminated molded product A3 composed of the substrate A1 and the laminated film A2 with a pressurizing body such as the diaphragm 211 in the chamber C in a vacuum state, and laminates and molds the laminated molded product A4. The lower plate 213 of the vacuum lamination device 12 is movably raised and lowered relative to the upper plate 212 fixedly provided by the elevating mechanism 214 , and a chamber C can be formed inside when the lower plate 213 including the outer frame rises and abuts against the upper plate 212 . The elevating mechanism 214 is constituted by a hydraulic cylinder, but a motor and an air cylinder may be used for the elevating mechanism 214 of the vacuum lamination apparatus 12 . When the elevating mechanism 214 of the vacuum laminating apparatus 12 uses a motor instead of a hydraulic mechanism, the entire lamination forming system 1 is realized by using the drive sources of the first press apparatus 13 and the second press apparatus 14 as motors, which will be described later. Electricity improves the cleanliness when the lamination molding system 1 is installed in a clean room. The chamber C is connected to a vacuum pump (not shown), and the atmosphere in the interior space can be sucked to form the chamber C in a vacuum state. In addition, in the present invention, the vacuum state refers to a state in which the pressure has been reduced to a predetermined value.

A hot plate 215 heated by a heater (not shown) is attached to the lower surface of the center of the upper plate 212 , and an elastomer sheet 216 such as a heat-resistant rubber film (not shown) is attached to the surface of the hot plate 215 . On the other hand, a hot plate 217 heated by a heater (not shown) is also attached to the upper surface of the center of the lower plate 213 . In addition, a diaphragm 211 formed of a heat-resistant rubber film as a pressurizing body is attached to a portion of the lower plate 213 around the hot plate 217 so as to cover the upper surface of the hot plate 217 . Then, by supplying pressurized air to the back side of the diaphragm 211 from a compressor (not shown), the diaphragm 211 expands in the chamber C and pressurizes the substrate A1 and the laminated film A2 between the diaphragm 211 and the hot plate 217 . In addition, the diaphragm 211 of the vacuum lamination apparatus 12 may be attached to the upper platen 212, and the laminated molded article A3 composed of the substrate A1 and the laminated film A2 may be pressed from the upper platen 212 side. In addition, the vacuum lamination apparatus 12 may have a structure in which rubber is attached to the flat pressure surfaces of the upper and lower pressure blocks, respectively, and one of the pressure blocks advances to the other pressure block to press the laminated molded product A3. In the case of a press apparatus in which rubber sheets are respectively attached to the flat pressing surfaces of the upper and lower pressing blocks, the pressing mechanism may be a structure using a servo motor or the like or a structure using a hydraulic cylinder. When the press apparatus is pressurized by a hydraulic cylinder, in addition to only the pressure control, the control to perform both the position control and the pressure control, or the control to perform only the position control may be used. In addition, when a motor such as a servo motor is used in the press apparatus, in addition to only the pressure control, the control of both the position control and the pressure control, and the control of only the position control may be performed. When position control is performed using a motor such as a servo motor in the press apparatus, in addition to the rotary encoder mounted on the servo motor, the position control may be performed using a position sensor additionally provided in the press apparatus. In addition, the vacuum laminating apparatus may be a roll-type laminator which is provided between upper and lower rolls, respectively, in a vacuum state chamber and performs lamination molding.

Next, the first pressing device 13 arranged in the serial direction in the subsequent process of the vacuum laminating device 12 will be described. The first pressing device 13 is a primary lamination molded product A4 formed by the laminate A1 and the laminated film A2, which is press-molded again in the vacuum laminating device 12 and provided with concavo-convex portions, and in a state where concavities and convexities remain on the laminated film A2 side. An apparatus for press-molding into a flatter secondary laminated molded product A5. The first punching device 13 includes a substantially rectangular base plate 311 disposed below, and four tie rods 313 vertically disposed between the four corners of the substantially rectangular fixed plate above the base plate 311 , that is, the upper plate 312 . In addition, the movable platen 314 of the first press device 13 having a substantially rectangular shape is movable up and down between the chassis 311 and the upper platen 312 . In addition, the 1st press apparatus 13 is a structure which uses a motor, such as a servomotor 315, as a drive source, and the servomotor 315 of a pressurization mechanism is attached to the chassis 311. As shown in FIG.

The servo motor 315 includes a rotary encoder 316 and is connected to a servo amplifier 317 which is connected to the control device 17 described above. A ball screw 318 is connected to the drive shaft of the servo motor 315, or the drive shaft itself is a ball screw. On the other hand, the ball screw nut 319 of the ball screw mechanism is fixed to the lower surface of the lower plate 314 , and the ball screw 318 is inserted through the ball screw nut 319 . Furthermore, a load sensor 320 is installed between the lower disk 314 and the ball screw nut 319 . In addition, the part to which the load cell 320 is attached is not limited as long as it is a part that is subjected to the pressing force of the pressing process, and may be a part to which the servo motor 315 is attached as an example.

According to the above configuration, the first press device 13 moves the lower plate 314 up and down relative to the upper plate 312 by the operation of the servo motor 315 . In addition, the ball screw mechanism of the first press device 13 may be a structure in which a belt is installed between a drive shaft attached to the servo motor 315 and a pulley of the ball screw 318, and the driving force is transmitted through the belt. In addition, the ball screw mechanism of the first press device 13 may be a structure in which the ball screw nut 319 and the ball screw 318 are rotatably mounted on the chassis 311 . In addition, by covering the portion of the ball screw 318 with the cover, it is possible to prevent the grease from spreading and contribute to the improvement of the cleanliness in the clean room. Also, the first punching device 13 may be a double force mechanism using a link mechanism, a crank mechanism, a wedge mechanism, or the like, or a device having a similar structure. In addition, in the above example, the first press device 13 is press-molded by one servo motor 315, but the press-molding device using two or more servo motors 315 or two or more ball screw mechanisms is not excluded. In addition to the servo motor, a closed-loop controllable linear motor can be used. In addition, the first press device 13 may be a device that lifts and lowers the upper plate 312 with respect to the lower plate 314 using any of the above-mentioned mechanisms.

A linear ruler 321 serving as a position sensor is installed between the side surface of the upper plate 312 and the side surface of the lower plate 314 . In the linear ruler 321, a ruler 321a is attached to one of the discs, and a slider 321b serving as a measurement portion is attached to the other disc. The position (distance) of the lower disk 314 with respect to the upper disk 312 can also be detected by the rotary encoder 316 of the servo motor 315 . However, there is a slight gap between the ball screw 318 and the ball screw nut 319 , and thermal expansion occurs in the tie rod 313 and the ball screw 318 . Therefore, it is often desirable to directly measure the position (distance) of the lower plate 314 with respect to the upper plate 312 with the linear ruler 321 . As an example, the resolution of the position sensor such as the linear scale 321 is preferably 0.002 mm or less, and more preferably 0.001 mm or less and has a resolution of 0.0001 mm or less, and a resolution of 0.000025 mm or more, which are the smallest resolution units that can be practically used. model.

There may be only one linear ruler 321 installed on the first punching device 13, but a total of two or two may be installed on both sides of the upper plate 312 and the lower plate 314 with respect to the traveling direction of the carrier films F1 and F2. Two total 4. In addition, when four position sensors in total are attached to both side surfaces, the parallelism of the lower plate 314 with respect to the upper plate 312 can be detected. Alternatively, the position where the position sensor is provided may be the position where the pressing blocks 322 and 323 are connected, and the position where the chassis 311 and the lower plate 314 are connected. In addition, the first punching device 13 is generally provided with a position where the position of the lower plate 314 does not exceed the falling critical point, the rising critical point, etc. in mechanical design and can detect the position of a limit switch, a proximity switch, etc., which are not shown in the figure. Safety switch.

Pressing blocks 322 and 323 are respectively attached to the opposing surfaces of the upper plate 312 and the lower plate 314 of the first press device 13 via a heat shield (not shown). The pressure blocks 322 and 323 are provided with a temperature control mechanism such as a cartridge heater. Since the structures of the pressing surfaces 327 of the pressing blocks 322 and 323 are the same, respectively, the pressing surface 327 of one pressing block 322 will be described. A buffer material 325 such as rubber, resin film, fiber sheet, or the like is attached to the surface of the pressing block 323 . The thickness of the aforementioned buffer material 325 is, for example, 0.05 mm to 3.00 mm. In addition, a metal plate 326 made of an elastically deformable stainless steel or the like with a plate thickness of 0.2 mm to 3.00 mm is attached to the surface of the above-mentioned buffer material 325 as an example. In addition, the surface on the opposite side of the surface of the metal plate 326 that is in contact with the buffer material 325 is the pressing surface 327 .

In addition, the member constituting the pressing surface of the first press device 13 may be a heat-resistant elastomer thin plate such as a fluororubber thin plate. In this case, the hardness (Shore A hardness) of the elastic body sheet is not limited to this, and a hardness of 30 to 80, more preferably 40 to 70 can be used as an example. In addition, although the 1st press apparatus 13 does not have the chamber which can be in a vacuum state, it may be provided with the chamber which can be in a vacuum state, and a structure in which pressure molding is performed in a vacuum chamber may be sufficient.

Next, with reference to FIG. 2, the control block diagram concerning the press forming by the 1st press apparatus 13 is demonstrated. The first press device 13 is a device having a position control element. The control device 17 includes a force command signal output unit 701 and a position command signal output unit 702 . The force command signal output unit 701 and the position command signal output unit 702 are connected to a sequence control unit 703 serving as an upper control unit, and various molding conditions and the like are supplied from the sequence control unit 703 . In addition, the sequence control unit 703 is connected to the setting input display unit 704 and the storage unit 705 .

In addition, the load sensor 320 of the first punching device 13 is connected to the adder 706 of the control device 17 . Then, the adder 706 compares and adds the command signal output from the force command signal output unit 701 and the signal output from the load sensor 320 . Furthermore, the linear ruler 321 is connected to the adder 707 of the control device 17 . Then, the adder 707 compares and adds the command signal output from the position command signal output unit 702 and the signal output from the linear scale 321 . Then, the signal output from at least one of the above-described adders 706 and 707 is sent to the servo amplifier 317 via the force-position comparison switching unit 708 and the command signal generating unit 709 . In addition, the rotary encoder 316 of the servo motor 315 is connected to the servo amplifier 317 . Then, the signal output from the command signal generation unit 709 is added to the signal output from the rotary encoder 316 . In addition, the control block diagram in FIG. 2 is a conceptual diagram, and actually, all functions and the like may be provided on the side of the first press apparatus 13 , and it is not limited to the configuration in FIG. 2 .

Next, the 2nd press apparatus 14 which is arrange|positioned connected to the tandem direction in the post process of the 1st press apparatus 13 is demonstrated. The second press device 14 is a device that pressurizes the secondary laminated molded product A5 laminated and molded in the first press device 13 again, and press-molded it into a completely flat laminated molded product A6. The structure of the pressing mechanism and the like of the second press device 14 of the lamination molding system 1 of the first embodiment is substantially the same as that of the first press device 13 .

The second punching device 14 includes a substantially rectangular base plate 411 provided below, and four tie rods 413 vertically provided between the vicinity of the four corners of the substantially rectangular upper plate 412 serving as a fixed plate located above the base plate 411 . In addition, the second press device 14 can move the lower plate 414 , which is a rectangular movable plate, up and down between the chassis 411 and the upper plate 412 . In addition, the 2nd press apparatus 14 is a structure which uses a motor as a drive source, and the servomotor 415 of a pressurization mechanism is attached to the chassis 411 . In the first embodiment, the servo motor 415 of the second press device 14 can use the same model as the servo motor 315 of the first press device 13 in terms of rated output and the like. However, the first pressing device 13 may use the high-output servo motor 315, and conversely, the second pressing device 14 may use the high-output servo motor 415.

The servo motor 415 includes a rotary encoder 416 and is connected to a servo amplifier 417 which is connected to the control device 17 described above. A ball screw 418 is connected to the drive shaft of the servo motor 415, or the drive shaft itself is a ball screw. On the other hand, a ball screw nut 419 of the ball screw mechanism is fixed to the lower surface of the lower plate 414 , and the ball screw 418 is inserted through the ball screw nut 419 . Also, a load sensor 420 is installed between the lower plate 414 and the ball screw nut 419 . Therefore, the second press device 14 moves the lower plate 414 up and down by the operation of the servo motor 415 . In addition, the pressurizing mechanism of the second press device 14 can also be changed into various styles similarly to the above-described first press device 13 . Even if only the control including the position control element is performed in the second press apparatus 14, the load sensor 420 may not be mounted. In addition, a linear ruler 421 serving as a position sensor is attached between the side surface of the upper plate 412 and the side surface of the lower plate 414 , as in the case of the first punching device 13 . The performance of the linear ruler 421 is the same as that of the first punching device 13 . However, when it is desired to detect only the plate thickness of the final laminated molded product A6 more accurately, a member having a higher resolution than the linear scale 321 of the first pressing device 13 may be used as the linear scale of the second pressing device 14 . Regulation 421. In the case of using the linear ruler 321, the position sensor may not be of a magnetic induction type, an optical type, an electrostatic capacitance type, etc., but an ultrasonic sensor or the like may be selected.

Pressure blocks 422 and 423 are respectively installed on the opposing surfaces of the upper plate 412 and the lower plate 414 of the second punching device 14 . The pressure blocks 422 and 423 are provided with a temperature control mechanism such as a cartridge heater. Since the structures of the pressure surfaces 427 of the pressure blocks 422 and 423 are respectively the same, the pressure surface 427 of one pressure block 423 will be described. A buffer material 425 such as rubber, resin film, fiberboard, or the like is attached to the surface of the pressing block 423 . The thickness of the aforementioned buffer material 425 is, for example, 0.02 mm to 2.00 mm.

The buffering effect of the buffer material 425 of the second punching device 14 is the same as that of the buffering material 325 of the first punching device 13 , preferably smaller. Therefore, when the buffer material 425 is the same material, it is preferable that the thickness of the buffer material 425 of the second punching device 14 is the same or the thickness is reduced in many cases. In addition, when the buffer material 325 of the first press device 13 and the buffer material of the second press device 14 have the same thickness, it is preferable to use the same material or high hardness as the buffer material 425 of the second press device 14 in many cases. In addition, a metal plate 426 made of a material such as elastically deformable stainless steel with a plate thickness of 0.2 mm to 3.00 mm is attached to the surface of the above-mentioned buffer material 325 as an example. In addition, the surface on the opposite side of the surface of the metal plate 426 that is in contact with the buffer material 425 is the pressing surface 427 . About the control block diagram of the 2nd press apparatus 14, since it is substantially the same as the control block diagram of the 1st press apparatus 13, the above-mentioned description is quoted.

Next, the carrier film winding device 16 installed in the post-process of the second press device 14 will be described. The carrier film winding device 16 is a device that doubles as a conveying device and a tensioning device for the carrier films F1 and F2. The carrier film winding device 16 includes a lower unwinding drum 611 and a driven drum 612 , and the lower carrier film F1 is wound by the winding drum 611 . The carrier film winding device 16 includes an upper winding drum 613 and a driven drum 614, the upper carrier film F2 is peeled off from the laminated molded product A6 at the portion of the driven drum 614, and the upper carrier film F2 is wound on the upper side The winding drum 613. In addition, the take-out table portion 615 of the laminated molded product A6 is provided in the portion where only the lower carrier film F1 is conveyed in a level state. Moreover, as a conveying apparatus of the carrier films F1 and F2, a transfer apparatus (so-called clamp type conveying apparatus) which grips both sides of the carrier films F1 and F2 and stretches them in a subsequent process can be provided.

Next, the lamination formation method of the to-be-laminated material A1 and the lamination film A2 using the lamination formation system 1 of 1st Embodiment is demonstrated. In the lamination molding system 1 during continuous molding, the diaphragm vacuum lamination device 12 , the first press device 13 , and the second press device 14 can be sequentially controlled by the control device 17 to perform stack molding simultaneously and in batch processing. However, here, a description will be given along the order of forming the laminated molded product A3 of the substrate A1 and the laminated film A2, which are to-be-laminated materials in one batch.

The to-be-laminated material A1 placed on the placing table portion 513 of the carrier film conveying device 15 is a circuit for the structure of the concavo-convex portion consisting of a convex portion having a copper foil portion adhered to the surface of the substrate and a concave portion having no copper foil portion substrate. The thickness of the copper foil (height with respect to the substrate portion) is not limited to this, but is about several μm to several tens of μm, and is basically 0.1 mm or less. Laminated films A2 are superimposed on the upper and lower sides of the circuit board A1, respectively, to constitute a laminated molded product A3 for structural molding. In addition, although one laminated molded object A3 is described in FIG. 1 , a plurality of laminated molded objects A3 may be placed on the mounting table portion 513 at the same time to perform lamination molding.

Then, the above-mentioned laminated molded product A3 placed on the placing table portion 513 moves together with the upper and lower carrier films F1 and F2 in accordance with the rotational drive of the winding drums 611 and 613, and moves to the chamber C of the vacuum lamination apparatus 12 in the open state. internal delivery and positioning. Next, the vacuum lamination apparatus 12 closes the chamber C, and decompresses it by a vacuum pump (not shown) to form the chamber C in a vacuum state (decompression state). Then, pressurized air is fed to the back side of the diaphragm 211 to expand the diaphragm 211 into the chamber C, and the diaphragm 211 is pressurized with the elastic thin plate 216 of the hot plate 215 attached to the upper plate 212 side and laminated by the substrate A1. Laminated product A3 composed of film A2. The pressure applied by the diaphragm 211 at this time (the pressure applied to the unit area of the laminated molded product A3 ) is, for example, 0.3 MPa to 1.5 MPa. For the connection of the laminated film A2, the laminated molded product A4 is laminated and molded once. However, the surface of the laminated film A2 of the primary laminated molded product A4 laminated and molded by the vacuum lamination apparatus 12 is still in a state with concavities and convexities imitating the shape of the concavo-convex portions of the substrate A1. In addition, at this time, when the inorganic material content of the laminated film used is high (for example, a laminated film with SiO ₂ of 35 to 75 wt %), the fluidity of the molten resin is low, and unevenness is more likely to remain.

In the vacuum lamination apparatus 12, when the primary lamination molded product A4 including the to-be-laminated material A1 and the lamination film A2 having the concavo-convex portion and having both of them bonded together is laminated, the chamber C is opened. Then, the above-mentioned primary laminated molded product A4 is conveyed between the upper plate 312 and the lower plate 314 of the first press device 13 in the subsequent process by the subsequent conveyance of the carrier films F1 and F2 by the carrier film winding device 16, and is stopped. at the predetermined pressure position.

Next, the servo motor 315 of the first pressing device 13 is activated, the lower plate 314 and the pressing block 323 are raised, and the first pressing process is started. In the first press step, pressurization control including a position control element is performed. Initially, the lower plate 314 and the pressing block 323 are at the speed switching position P1 just before the pressing surface 327 abuts the lower carrier film F1, or the upper carrier film F2 abuts the pressing surface 327 on the upper plate 412 side. The position was previously moved controlled by the servo motor 315 at high speed. However, when the above-mentioned position is reached and detected by the rotary encoder 16, the linear ruler 321, the limit switch, the proximity switch, etc., the movement is controlled at a low speed by the servo motor 315, and the primary laminated molded product A4 is clamped in the feeder. When pressing between the surfaces 427 and 427, it is possible to reduce the situation that an overload is applied suddenly. The fact that the primary laminated molded product A4 is sandwiched by the pressing surfaces 427 and 427 can be grasped by detecting the torque of the servo motor 315, or can be estimated by reaching the preset position P2.

When the primary laminated molded product A4 is sandwiched by the pressing surfaces 427 and 427 , it shifts to the first pressing step PR1 in the first pressing step. In the 1st pressurization process PR1, the value of the load sensor 320 is detected, and the feedback control by force control is performed. The value of the force command signal output from the force command signal output unit 701 is compared with the value of the force signal detected by the load sensor 320 and added. In addition, since the first pressing step PR1 is only force control, the force position comparison switching unit 708 passes through as it is, and is sent to the command signal generating unit 709 as a command value for speed control of the servo amplifier 317 .

Then, in the servo amplifier 317 , the number of revolutions and the current value of the servo motor 315 are generated and sent to the servo motor 315 . Further, as described above, the control of the servo motor 315 is performed by the force control, but the force can be expressed as a pressure (surface pressure) applied to a unit area of the primary laminated molded product A4. In the lamination molding method of the present embodiment, the surface pressure is preferably 0.3 MPa to 1.5 MPa as an example, and the surface pressure is preferably lower than the vacuum lamination apparatus 12 in many cases. Furthermore, in the first pressing step PR1, the lower plate 314 and the pressing block 323 are further raised to reach a preset position P3 (the same distance as the pressing surfaces 327, 327), and are detected by the linear ruler 321, or , When a predetermined time has elapsed, the process proceeds to the second processing step PR2 in the first pressing step. Alternatively, the detection value of at least one of the linear scale 321 and the rotary encoder 316 is transferred to the second pressing step PR2.

In the second pressurizing step PR2, pressurization control for optimizing the position control element is performed. The value of the linear scale 321 is detected and the feedback control of the position control (or speed control) is performed to the target position P4. The value of the command signal is output from the position command signal output unit 702 , and the value of the position signal detected by the linear scale 321 is compared and added. In addition, the value of the load sensor 320 is also always detected and sent to the force-position comparison switching unit 708 through the adder 706 . In addition, a secondary threshold value is set as an example in the detection value of the load sensor 320 , and when the detection value of the load sensor 320 exceeds the initial threshold value, subtraction is performed from the command value of the position control. In addition, when the detection value of the load sensor 320 exceeds the last threshold value, the command value of the command signal for position control is used as the command value subtracted from the previous command value, or temporarily or after the second pressing process is completed. The output of the position signal command value is stopped before PR2.

Also in the second pressurizing step PR2, the command value of the speed control is sent to the servo amplifier 317, and the current value is mainly controlled. Speed control using the rotary encoder 316 is performed between the servo amplifier 417 and the servo motor 415 . Thereby, in the second pressing process, the position of the lower plate 314 can be accurately controlled based on the value detected by the linear ruler 321 . Then, when the position of the lower plate 314 becomes the target position P4, the servo motor 415 is controlled (including servo lock and servo off) so that the current position is maintained, and the secondary laminated molded product A5 having the correct plate thickness T1 is press-molded. However, when a pressure abnormality occurs in the primary laminated molded product A4 that is pressurized due to a large positional deviation during the position control, the position command value is changed to the retreat side according to the above-described force detection and the pressurization is stopped. Therefore, it is possible to prevent the The occurrence of defective products such as thickness reduction due to overpressure and lateral outflow of molten resin. Furthermore, in the above-mentioned second pressing step PR2, even if the target position (command position) cannot be reached at the end (the case cannot be pressed), as long as it is an allowable plate thickness within the range.

In addition, if the second pressurizing step PR2 is the control using the position control element, it is possible to perform the control that prioritizes the force. As an example, in the force control in which the value of the load sensor 320 is detected in the same manner as in the first pressing process, the feedback control of the position control may be added at a constant ratio. Alternatively, the speed control elements may be added as a feedback-forward control signal. The command value of the force signal output from the force command signal output unit 701 may also be changed in accordance with the position detected by the linear scale 321 .

In addition, each pressing step of the first pressing step is not limited to the above, and may be a step with many pressing steps. In addition, the pressure molding using the position control element in each process is a position control element included in the broad sense even if it is a method of using the speed control element for a part or all of it. In addition, the position control element including speed control may be an element that controls any one of current value control, voltage value control, and torque value to control the servo motor 315 . In addition, as a device corresponding to the second aspect of the present invention, the first press device 13 using the servo motor 315 as a drive source may be a device that performs only force control in all the pressing steps. Even in such a case, the force control by the first press device 13 using the servo motor 315 can be compared to the pressure control of the press device using a hydraulic cylinder controlled by a conventional general pressure control valve for the primary laminated molded product. High-precision pressure control also reduces uneven thickness.

In addition, the temperature of the pressing blocks 322 and 323 of the first pressing device 13 at this time is different depending on the material of the substrate A1 and the laminated film A2, so it is not limited to this. 90°C to 150°C.

Then, when the second pressing step PR2 of the first press device 13 is completed after a predetermined time has elapsed and the secondary laminated molded product A5 is laminated and formed, the lower plate 314 is lowered. Since the surface of the secondary laminated molded product A5 formed at this time is press-molded on the press surface 327 of the first press device 13 via the press blocks 322 and 323 provided with the elastic metal plate 326 via the buffer material 325, the press-molding is performed. The unevenness remaining on the surface of the primary laminated molded product A4 can be processed more evenly. Then, by the carrier film winding device 16 , the following unwinding drum 511 and the driven drum 512 , the unwinding drum 414 and the driven drum 515 , the conveyance of the carrier films F1 and F2 , and the winding drums 611 and 613 For the winding of the carrier films F1 and F2, the above-mentioned secondary laminated molded product A5 is conveyed between the upper plate 412 and the lower plate 414 of the second press device 14 in the subsequent process of the first press device 13, and is stopped at a predetermined pressure Location.

Next, the servo motor 415 of the second press device 14 operates, and the lower plate 414 and the pressing block 423 are raised at a high speed in the same manner as the control of the first press device 13, and the speed is switched to a low speed at the speed switching position P11, and soon, at the contact point P12, the secondary laminated molded product A5 is sandwiched by the pressing surfaces 427 and 427 . Press molding including a position control element can also be performed in the second press device 14 . In the first processing step PR11 of the second press apparatus 14, similar control to that of the second processing step PR2 of the first press apparatus 13 can be performed. That is, the position control of detecting the position of the linear scale 421 and the like to operate the servo motor 415 can be performed, but when the value of the load sensor 320 is detected and exceeds a threshold value, the above-mentioned position command control signal (current value, etc.) is applied limit. Then, when it is detected that the lower plate 414 or the pressing block 423 has reached the predetermined switching position P13 or that a predetermined time has elapsed, the first pressing process PR11 is completed, and the process shifts to the second pressing process PR12.

In the second pressing step PR12 of the second pressing step, only position control (or speed control) for operating the servo motor 415 by detecting the position of the linear ruler 421 and the like is performed. However, since the difference between the plate thickness of the secondary laminated molded product A5 press-molded by the second press device 14 and the plate thickness of the laminated molded product A6 as the final product is extremely small, there is no positional deviation even in the position control. If it is too large, a command signal for driving the servo motor 315 with an unexpectedly large force is sent, for example. In addition, since the distance from the switching position P13 from the first pressing step PR11 to the second pressing step PR12 to the final pressing end target position P14 is extremely small, there is hardly any deviation in the position control position. If it is too large, a command signal for driving the servo motor 315 with an unexpectedly large force is sent, for example. Therefore, extremely precise thickness accuracy can be realized in the laminated molded product A6 as a final product, and the outflow of the molten resin to the side of the laminated molded product A6 can be prevented. However, in the second press step PR12, restrictions such as the torque limit of the servo motor 415 may be provided. Then, when the position of the lower plate 314 reaches the final pressing end target position P14, the servo motor 415 is controlled (including servo lock and servo off) so that the current position is maintained, and the laminated molded product with the correct plate thickness T2 is press-molded. A6. When the first pressing device reaches the final pressing end target position and the pressing ends, the position information of the lower plate detected by the position sensor such as the linear ruler 421 is stored in the storage unit of the control device 17 . In addition, in the above-mentioned embodiment, since the position sensor is installed between the upper plate and the lower plate, the distance between the upper plate and the lower plate can be measured and stored, but the upper pressure block and the lower pressure block When a position sensor such as a linear ruler is installed between them, the distance between the pressure blocks is measured and stored. In addition, the distance between the fixed member on the base side and the like and the lower plate that moves up and down can be detected by the position sensor. The distance between the upper plate and the lower plate, the distance between the upper pressure block and the lower pressure block, and the distance between the fixing member such as the base side and the lower plate correspond to the plates of the secondary laminated product A5 thick.

The temperature of the pressing blocks 422 and 423 of the second pressing device 14 during the secondary press molding is not limited to this because the temperature of the pressing blocks 422 and 423 of the second pressing device 14 is different depending on the materials of the substrate A1 and the laminated film A2, and the temperature is preferably controlled at 80°C to 200°C. , more preferably 90°C to 150°C. However, it is preferable that the temperature of the pressing blocks 322 and 323 of the first pressing device 13 is the same or that the temperature of the pressing blocks 422 and 423 of the second pressing device 14 is lower.

When the predetermined time elapses after the second press device 14 reaches the final pressurization end target position P14, the lower plate 314 is lowered. The plate thickness T2 of the laminated molded product A6 formed at this time becomes an accurate thickness by performing the second press forming by position control. Moreover, only when the unevenness|corrugation remains on the surface of the secondary laminated molded product A5, it can process more flatly. Then, by the conveyance of the next carrier films F1 and F2 by the carrier film winding device 16, the final laminated molded product A6 is conveyed to the take-out table portion 615 of the post-process of the second press device 14, and is conveyed to the take-out table portion 615 of the subsequent process of the second press device 14, and is sent to the unillustrated device. Conveying to the next process.

In addition, the first press process and the second press process performed by the second press device 14 only need to include at least a position control element like the second press process PR2 of the first press device 13, and only the position control may be performed from the beginning. The step (or speed control) may be a step of detecting the force and using it for control. In addition, the position control of the second press device 14 may be based on the distance between the upper plate and the lower plate of the press device, the distance between the pressing blocks, etc. (the middle The plate thickness of the laminated product A5) determines the final pressing end target position of the second press device. In this way, by controlling the position of the second press device based on the plate thickness of the intermediate layered product A5, it is possible to directly determine the plate thickness of the second layered molded product A5 that has been press-molded by the first press device, so that the final product can be layered and molded. The thickness of the plate of the product A6 can prevent insufficient pressing and excessive pressing in the second pressing device.

In addition, the lamination molding system 1 of the first embodiment is superior in the following points in comparison with a lamination molding system provided in a vacuum lamination apparatus with a single press apparatus including force control (or pressure control) and position control elements in a subsequent process. That is, by performing the pressure forming of the position control element by the continuous first press device 13 and the second press device 14, respectively, it is possible to process to a desired plate thickness in two stages. Therefore, as compared with a lamination molding system in which a single press machine is used to form a desired thickness, pressure molding can be performed without ineffective processing, and thus it is possible to prevent the molten resin from flowing out to the side of the lamination molded product. In addition, in the lamination molding of the substrates, the time required for the press molding by the press apparatus is often longer than the time required for the lamination molding by the vacuum lamination apparatus 1, but by using two consecutive press apparatuses, the The time required for press forming by the press apparatus can be divided into the respective press apparatuses 13 and 14 . Therefore, it is possible to shorten the cycle time of lamination molding per batch.

In addition, the second press device 14 is a device corresponding to the second aspect of the present invention, and only the force control of the servo motor 415 may be performed in all the pressing steps. Even in this case, the force control by the second press device 14 using the servo motor 415 can be compared to the pressure control of the conventional press device using a hydraulic cylinder controlled by a general pressure control valve. The secondary laminated molded product A5 was subjected to high-accuracy pressure control, and thickness unevenness was also reduced.

Next, the lamination molding system 2 of the second embodiment will be described with reference to FIG. 5 , focusing on the differences. The lamination molding system 2 of the second embodiment is provided in the subsequent process of the vacuum lamination apparatus 22 and has at least two continuous process press apparatuses having position control elements in common, the conveying method of lamination moldings, and the like. In addition, the structures of the chassis 2311 , the upper plate 2312 , the tie rods 2313 , and the lower plate 2314 of the first press device 23 and the second press device 24 , the structures of the pressing blocks 2322 and 2323 , and the like are also common. The first press device 13 and the second press device 14 of the first embodiment and the first press device 23 and the second press device 24 of the second embodiment are different in the pressing mechanism.

In the first press device 23 , a pressurizing cylinder 2315 that operates by hydraulic pressure is provided in the chassis 2311 as a pressurizing mechanism, and a slider 2316 of the pressurizing cylinder 2315 is fixed to the back surface of the lower plate 2314 . In addition, the pressurizing cylinder 2315 is connected to a hydraulic device 2317 including a closed-loop controllable valve such as a servo valve (not shown). In addition, the pressurizing cylinder 2315 can detect the pressure of the hydraulic oil by the pressure sensor. Furthermore, the hydraulic device 2317 including the above-mentioned pressure sensor is connected to the control device 17 . In addition, between the upper plate 2312 and the lower plate 2314 of the first punching device 23, a linear ruler 2318 similar to that in FIG. 1 is installed. In addition, the linear ruler 2318 is connected to the control device 17, and can detect the distance between the upper plate 2312 and the lower plate 2314.

In addition, the structure of the second press device 24 is the same as that of the first press device 23, and the chassis 2411 is provided with a pressurizing cylinder 2415 that operates by hydraulic pressure as a pressurizing mechanism, and the slider 2416 of the pressurizing cylinder 2415 is fixed to the lower plate 2414. The back. Further, the pressurizing cylinder 2415 is connected to a hydraulic device 2417 including a closed-loop controllable valve such as a servo valve not shown. In addition, the pressurizing cylinder 2415 can detect the operating pressure by a pressure sensor. Furthermore, the hydraulic device 2417 including the above-described pressure sensor is connected to the control device 17 . In addition, between the upper plate 2412 and the lower plate 2414 of the second punching device 24, the same linear ruler 2418 as that of the first punching device 23 is installed. In addition, the linear ruler 2418 is connected to the control device 17, and can detect the distance between the upper plate 2412 and the lower plate 2414.

The primary lamination molded product A4 formed by lamination in the vacuum lamination apparatus 22 is transported to the first press apparatus 23 in the same manner as in the lamination formation system 1 of the first embodiment, laminated and formed into a secondary lamination molded product A5, and sent to the second press apparatus 24 It was conveyed and laminated to form a laminated molded product A6. Since the lamination forming method in the first press apparatus 23 and the second press apparatus 24 in the lamination forming system 2 of the second embodiment is substantially the same as the lamination forming method in the lamination forming system 1 of the first embodiment, Therefore, the description of the above-mentioned first embodiment is cited. If the difference is described, in the first embodiment, the value of the load sensor 320 and the like is detected and the force control of the servo motor 315 is performed, and in the second embodiment, the value of the pressure sensor is detected and added. The aspect of the pressure control of the pressure cylinder 2415 is different. That is, when a servo valve is used, closed-loop control of the pressure using the value of the pressure sensor and closed-loop control of the position (or velocity) of the linear scale 2418 can be performed by the servo valve.

In addition, in the present invention, as a method of mixing the lamination forming system 1 of the first embodiment and the lamination forming system 2 of the second embodiment, the first press device can be used as a press using a hydraulic pressure or the like and having a position control element. The second press device is a press device using a motor such as a servo motor and having a position control element. Furthermore, on the contrary, the first press device may be a press device using a motor such as a servo motor, and the second press device may be a press device using a pressurizing cylinder of a fluid such as hydraulic pressure.

Next, the lamination molding system 3 of the third embodiment will be described with reference to FIG. 6 , focusing on the differences. The third embodiment is a form of a press device including a final process press device and a press device that performs pressure control including at least a position control element in each of the press devices consecutive to the previous process of the final process press device. Specifically, the first press device 33 arranged in the subsequent process immediately after the vacuum lamination device 32 includes a press device that performs only pressure control using a pressurizing cylinder 3311 such as hydraulic pressure. The first punching device 33 may be a structure in which rubber is attached to the flat pressing surface of the processing block. Moreover, the 2nd press apparatus 34 and the 3rd press apparatus 35 are equipped with the press apparatus which uses the motors, such as servomotors 3411, 3511, and has a position control element. Therefore, the "continuous pressing step of the subsequent step of the vacuum lamination apparatus" of the present invention may be continuous as the pressing step of the Nth item and the pressing step of the N+1th item as each pressing step performed by the pressing apparatus. Therefore, the press apparatus of the process immediately after the vacuum lamination apparatus 32 also does not carry out the pressurization control containing at least a position control element, including a case. In addition, the "continuous press process" may insert processes other than the press process between the press process and the press process.

In addition, the pressing surface of the third press device 35 is provided with the same buffer material and elastic metal plate as the first press device 33 and the second press device 34 . In addition, the third punching device 35 can make the thickness of the buffer material thinner than that of the second punching device 34 , make the buffer material harder than the second punching device 34 , and reduce the buffering effect compared with the second punching device 34 . In addition, the third pressing device 35 may be a structure in which a buffer material is not provided, and is mounted on a metal pressure plate or the above-mentioned metal plate, and the metal thin plate becomes the pressure surface. In addition, the third press device 35 may be such that the temperature of the pressure plate of the third press device 35 is lower than the temperature of the pressure plate of the second press device 34 as a cooling press that cools the laminated molded product in particular. Take control.

In addition, even when the third press device 35 is a cooling press and only needs to abut against the laminated molded product A6 with a slight pressure surface, the third press device 35 may not require a position control element. At this time, the first pressing process performed only by the first pressing device 33 immediately after the vacuum laminating device 32 and the second pressing process performed by the second pressing device 34 arranged in series with the first pressing device 33 are performed using at least position control. element control.

The present invention is not listed one by one, and is not limited to the above-mentioned first and second embodiments, and may be modified by those skilled in the art based on the spirit of the present invention, and combinations of the first to third embodiments The method of each description content can also be applied. The laminated molded product to be laminated and molded in the laminated molding systems 1 , 2 , and 3 may be a semiconductor wafer or other plate-like bodies other than a circuit board, but is not limited thereto. In addition, the surface of the laminated material, such as a laminated film, may be a single surface of a substrate or a wafer, or may be both surfaces. It may also be an LED substrate or the like. According to the present invention, even when the height of the wafer (convex portion) of the substrate is 0.1 mm or more and the thickness of the laminated resin film is 0.15 mm or more, good lamination molding can be performed in many cases.

1, 2, 3: Laminate forming system 12, 22, 32: Vacuum lamination device 13, 23, 33: The first punching device 14, 24, 34: Second punching device 17: Controls 212, 312, 412, 2312, 2412: on the plate 213, 314, 414, 2314, 2414: next order 315, 415, 3411, 3511: Servo motor 317, 417: Servo amplifier 320, 420: load sensor 321, 421, 2318, 2418: Linear Rulers 322, 323, 422, 423, 2322, 2323: pressure block A4: One-time laminated molded product A5: Secondary laminated molded product A6: Laminated products

FIG. 1 is a schematic explanatory diagram of a lamination molding system according to the first embodiment. 2 is a block diagram showing the control of the first press apparatus and the second press apparatus according to the first embodiment. FIG. 3 is an explanatory view showing press forming in a first press step by the first press apparatus according to the first embodiment. FIG. 4 is an explanatory view showing press forming in a second press step by the second press apparatus according to the first embodiment. FIG. 5 is a schematic explanatory diagram of a lamination molding system according to a second embodiment. 6 is a schematic explanatory diagram of a lamination molding system according to a third embodiment.

12: Vacuum lamination device

13: The first punching device

14: Second punching device

17: Controls

212, 312, 412: on the plate

213, 314, 414: next order

315, 415: Servo motor

317, 417: Servo amplifier

320, 420: load sensor

321, 421: Linear ruler

322, 323, 422, 423: pressure block

A4: One-time laminated molded product

A5: Secondary laminated molded product

A6: Laminated products

Claims (5)

A lamination forming system comprising a vacuum laminating device and a punching device, the lamination forming system is characterized by comprising: A vacuum lamination device for lamination in a vacuum chamber; and At least two continuous press apparatuses provided in the post-process of the above-mentioned vacuum lamination apparatus and having a position control element. A lamination forming system comprising a vacuum laminating device and a punching device, the lamination forming system is characterized by comprising: A vacuum lamination device for lamination in a vacuum chamber; and At least two continuous press apparatuses are installed in the post-process of the above-mentioned vacuum lamination apparatus and use a servo motor as a drive source. A lamination forming method using a vacuum laminating apparatus and a punching apparatus, the lamination forming method being characterized in that: Further, pressure control including at least a position control element is performed on the laminated molded product in the successive pressing steps of the subsequent process of the vacuum laminating apparatus, and the laminated molded product is subjected to a vacuum lamination apparatus for laminating and forming in a vacuum state chamber. Laminated and formed. A lamination forming method using a vacuum laminating apparatus and a punching apparatus, the lamination forming method being characterized in that: a vacuum laminating device for laminating and forming in a vacuum chamber, and at least two continuous pressing devices installed in the post-process of the vacuum laminating device and using a servo motor as a drive source, In each of the above-described press apparatuses, pressurization control including at least a position control element is performed. The lamination forming method according to claim 4, characterized in that: A first pressing device and a second pressing device using a servo motor as a drive source are provided in the subsequent process of the vacuum lamination device. When the pressurization of the first press device is completed, the plate thickness of the intermediate laminated product is detected by the first press device, and the pressurization end target position of the second press device is determined based on the plate thickness.

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