CN104626719A - Film laminating mechanism used for plastic package system - Google Patents
Film laminating mechanism used for plastic package system Download PDFInfo
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- CN104626719A CN104626719A CN201510017756.1A CN201510017756A CN104626719A CN 104626719 A CN104626719 A CN 104626719A CN 201510017756 A CN201510017756 A CN 201510017756A CN 104626719 A CN104626719 A CN 104626719A
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- film
- stripper apparatus
- press
- module
- mold frame
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- 230000007246 mechanism Effects 0.000 title claims abstract description 80
- 238000010030 laminating Methods 0.000 title abstract 8
- 239000010408 film Substances 0.000 claims abstract description 317
- 238000003825 pressing Methods 0.000 claims abstract description 43
- 230000008030 elimination Effects 0.000 claims abstract description 20
- 238000003379 elimination reaction Methods 0.000 claims abstract description 20
- 239000010409 thin film Substances 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 238000004804 winding Methods 0.000 claims abstract description 11
- 238000004806 packaging method and process Methods 0.000 claims description 58
- 239000000758 substrate Substances 0.000 claims description 27
- 230000003068 static effect Effects 0.000 claims description 18
- 238000009434 installation Methods 0.000 claims description 17
- 230000033001 locomotion Effects 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 8
- 238000009415 formwork Methods 0.000 abstract 5
- 238000000465 moulding Methods 0.000 abstract 4
- 238000001179 sorption measurement Methods 0.000 abstract 2
- 238000012858 packaging process Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005538 encapsulation Methods 0.000 description 6
- 230000006872 improvement Effects 0.000 description 6
- 239000005022 packaging material Substances 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 241000486406 Trachea Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 210000003437 trachea Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B39/00—Layout of apparatus or plants, e.g. modular laminating systems
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
- Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
Abstract
The invention discloses a film laminating mechanism used for a plastic package system. The film laminating mechanism comprises a thin film winding module, an electrostatic elimination module, a de-molding module and a vacuum adsorption module, wherein the thin film winding module comprises a thin film winding device; the thin film winding device comprises a motor and a main shaft for winding a thin film; the main shaft is in transmission connection with the motor; the de-molding module comprises a de-molding device; the de-molding device comprises an air cylinder and a film laminating roller connected with a piston rod of the air cylinder; and the film laminating roller, the electrostatic elimination module and the vacuum adsorption module are located above or below a thin film feeding path. The invention further discloses a plastic package pressing machine with the film laminating mechanism. The plastic package pressing machine uses the film laminating mechanism; when the plastic package pressing machine is used, one layer of special plastic thin film is arranged between a chip to be packaged and a formwork by the film laminating mechanism; in a packaging process, a thin film plastic package material and the formwork are separated and the formwork is prevented from being polluted by the thin film plastic package material; and the formwork is prevented from being in direct contact with an electronic device. The formwork keeps clean, the working efficiency is improved and the service life of a mold of the plastic package pressing machine is prolonged.
Description
Technical field
The present invention relates to a kind of film-covering mechanism, a kind of film-covering mechanism for the plastic packaging press in plastic packaging system.
Background technology
In ic chip package, mainly comprise the shaping and compression forming two kinds of modes of metaideophone.During metaideophone is shaping; the plastic packaging raw material used is generally columned solid particle resin material; resin particle enters mould bases at the flows by action of temperature and pressure; the chip completing upper track bonding wire operation is covered; form one deck plastic layer on the surface of chip after resin cooling forming, protect IC is not damaged.The raw material of compression forming is generally Powdered or fluent material, covers chip surface uniformly, be then sent to compression mould bases by the sprinkling of special powder or glue applying mechanism, closes film pressurize plastic packaging and is shaped.Mould bases because plastic packaging material is generally resin material, has certain viscosity, after chip completes encapsulation in mould bases, is easily bonded at the surface of mould bases, so can be designed with post rod mechanism, by chip ejection device usually.Can be bonded on mould bases by some waste material in addition, so after packaged chip taken away by manipulator, need special mould brush and vacuumize, mould bases being cleaned up, to start the encapsulation of next core assembly sheet.These processes can run into some troubles in some precision of process and the very high IC chip of quality requirements as during MAP BGA, and push rod takes off the internal structure that material can destroy some packaged chip; If mould brush is not cleaned out mould bases completely, when encapsulating next core assembly sheet, the quality of encapsulation also can be affected, and manual cleanup mould bases of sometimes having to, improve labour intensity, reduce the production capacity of equipment, shorten the mold use life-span.
Summary of the invention
To the object of the invention is in the prior art solved electronic device in plastic packaging system directly to contact may cause damage to chip with mould bases, may damage during the demoulding after chip completes encapsulation in mould bases, mould bases is easily by plastic packaging material pollution, the clear problem needing to carry out clearing up, improve labour intensity, reduce the production capacity of equipment, shorten the mold use life-span.
The technical solution used in the present invention is: a kind of for the film-covering mechanism in plastic packaging system, comprise winding film module, static elimination module 14, striping module 15 and vacuum suction module 16, winding film module comprises film coiling device, film coiling device comprises motor and the main shaft for coiled film 11, main shaft is connected with motor-driven, demoulding module 15 comprises stripper apparatus, the press mold roller that stripper apparatus comprises cylinder and is connected with cylinder piston rod, press mold roller, static elimination module 14 and vacuum suction module 16 are positioned at above or below film 11 course.
As a further improvement on the present invention, when film coiling device has 2, lays respectively at both sides thus film-covering mechanism is started, film 11 marches to another film coiling device from one of them film coiling device, film coiling device also comprises installation frame, motor is fixed on installation frame, one end of main shaft is movably connected on installation frame, motor is connected with spindle drive, stripper apparatus has 2, each stripper apparatus also comprises the fixed head be connected with respective films coiler device, and cylinder is fixed on fixed head.
As a further improvement on the present invention, film coiling device has 2, one of them is film feeding device 12, another is for film take-up 13, film feeding device 12 comprises the first installing plate 120, film installs main shaft 121, first motor 122 and the first tensioning shaft 129, film installs main shaft 121 and the first tensioning shaft 129 is movably connected on the first installing plate 120, first motor 122 is fixedly connected on the first installing plate 120, and the first motor 122 is installed main shaft 121 with film and is in transmission connection;
Film take-up 13 comprises film take-up main shaft 131, second substrate 134, second installing plate 135, second motor 136 and the second tensioning shaft 138, second installing plate 135 is connected with second substrate 134, second motor 136 is fixedly connected with the second installing plate 135, film take-up main shaft 131 and the second tensioning shaft 138 are flexibly connected with the second installing plate 135, and the second motor 136 is in transmission connection with film take-up main shaft 131;
Film feeding device 12 and film take-up 13 lay respectively at film 11 when both sides make film-covering mechanism start and send from film installation main shaft 121 and received by film take-up main shaft 131;
Striping module 15 comprises 2 stripper apparatus, each stripper apparatus includes fixed head, the fixed head of one of them stripper apparatus is connected with film feeding device 12, the fixed head of another stripper apparatus is connected with film take-up 13, and the cylinder in each stripper apparatus is all fixed on fixed head.
As a further improvement on the present invention, film feeding device 12 also comprises guide shaft 123, sliding bearing 124, first sensor 125, first substrate 126, drag link mechanism 127 and encoder 128, one end of guide shaft 123 is connected on first substrate 126, sliding bearing 124 is movably connected on guide shaft 123, drag link mechanism 127 and sliding bearing 124 are all connected with the first installing plate 120, first sensor 125 and encoder 128 are all connected with the first installing plate 120, and encoder 128 is connected with the first tensioning shaft 129 signal;
Film take-up 13 also comprises rotary plunger 132, rotating shaft 133 and handle 137, rotating shaft 133 is movably connected between second substrate 134 with the second installing plate 135, the second installing plate 135 is flexibly connected with second substrate 134, rotary plunger 132 is detachable to be fixed on second substrate 134, and handle 137 and the second installing plate 135 are connected.
As a further improvement on the present invention, first installing plate 120 comprises the first side plate 1201, second side plate 1202 and crossbeam 1203, first side plate 1202 and the second side plate 1202 are connected, second side plate 1202 away from one end of the first side plate be provided with stretch out to be connected as a single entity with the second side plate and with the second side plate extension at an angle, side and first side plate 1201 of crossbeam 1203 are connected, the extension of opposite side and the second side plate 1202 is connected, guide shaft 123 and sliding bearing 124 are equipped with two, all be symmetric along first substrate 126 center line, one of them sliding bearing 124 and the first side plate 1201 are connected, the extension of another sliding bearing 124 and the second side plate 1202 is connected, one end of drag link mechanism 127 is by being in transmission connection with the affixed realization of crossbeam 1203 and the first installing plate 120, encoder 128 and the first side plate 1201 are connected,
2 stripper apparatus are respectively the first stripper apparatus and the second stripper apparatus, first stripper apparatus comprises the first cylinder 151, first fixed head 152 and the first pressing mold roller 153, second stripper apparatus comprises the second pressing mold roller 155, second cylinder 156 and the second fixed head 157, first cylinder 151 and the first fixed head 152 is connected, the second cylinder 156 and the second fixed head 157 are connected, piston rod and the first pressing mold roller 153 of the first cylinder 151 are connected, the second cylinder 156 and the second pressing mold roller 155 are connected;
First stripper apparatus and the second stripper apparatus are equipped with linear bearing 154 and the second sensor 158, the second sensor 158 in first stripper apparatus is connected with the first fixed head 152 with linear bearing 154, the second sensor 158 in the second stripper apparatus and linear bearing 154 second fixed head 157 connect, and the first stripper apparatus and the second stripper apparatus are flexibly connected with solid film feeding device 12 and film take-up 13 respectively by linear bearing 154.
As a further improvement on the present invention, static elimination module 14 comprises the first valve 141, ion generator 144 and nozzle 145, first valve 141 is communicated with ion generator 144, and ion generator 144 is communicated with nozzle 145, and nozzle 145 is positioned at above or below film 11 course;
Vacuum suction module 16 comprises vavuum pump 161 and the second valve 168, second valve 168 is positioned in the gas circuit of vavuum pump 161, and vavuum pump 161 is adsorbed film 11 by gas circuit.
As a further improvement on the present invention, static elimination module 14 also comprises controller 142 and the first tracheae 143, and controller 142 is connected with the first valve 141 signal, and one end of the first tracheae 143 is communicated with the first valve 141, the other end is communicated with nozzle 145;
Vacuum suction module 16 also comprises pressure vacuum gauge 163, adapter 164, second tracheae 165, gas joint 166 and filter 167, second tracheae 165 and second valve 168, vavuum pump 161, filter 167, gas joint 166, Pressure gauge 163 is connected in series successively with adapter 164 and is communicated with.
The present invention's invention also discloses a kind of plastic packaging press, and comprise press rack 2, top mold frame 3, lower mold holder 4 and press 5, it also comprises the film-covering mechanism 1 in claim 1, and the main shaft of the film coiling device of film-covering mechanism is arranged in press;
Plastic packaging press start time, film-covering mechanism film coiling device main shaft drive film 11 make the course of film 11 be positioned at the below of top mold frame 3;
Vacuum suction module 16 is communicated with lower mold holder 4 with top mold frame 3, when starting vacuum suction module 16, film 11 is adsorbed on the bottom of top mold frame 3 or lower mold holder 4 by vacuum suction module 16;
Push down film under the drive of press mold roller when starting demoulding module 15, in stripper apparatus at cylinder piston rod and leave bottom towards the bottom thin film 11 being adsorbed on top mold frame 3 or lower mold holder 4 that moves away from the direction bottom top mold frame 3 or bottom lower mold holder 4, makes under press mold roller active force.
The present invention's invention also discloses a kind of plastic packaging press, comprise press rack 2, top mold frame 3, lower mold holder 4 and press 5, it also comprises the film-covering mechanism 1 in claim 2, the both sides that the both sides that 2 film coiling devices of film-covering mechanism are positioned at press top mold frame 3 are symmetric, 2 stripper apparatus are connected with respective films coiler device, make 2 stripper apparatus also be positioned at press top mold frame 3 are symmetric, the motor of each film coiling device is all fixed on press rack 2, and the main shaft of each film coiling device is all flexibly connected with on press rack 2;
Plastic packaging press start time, film-covering mechanism film coiling device main shaft drive film 11 make the course of film 11 be positioned at the below of top mold frame 3;
Vacuum suction module 16 is communicated with lower mold holder 4 with top mold frame 3, when starting vacuum suction module 16, film 11 is adsorbed on the bottom of top mold frame 3 or lower mold holder 4 by vacuum suction module 16;
Push down film under the drive of press mold roller when starting demoulding module 15, in stripper apparatus at cylinder piston rod makes the bottom thin film 11 being adsorbed on top mold frame 3 or lower mold holder 4 leave bottom towards away from the film that moving in the direction bottom top mold frame 3 or bottom lower mold holder 4, is positioned at the both sides of top mold frame 3 or lower mold holder 4 under press mold roller active force.
The present invention's invention also discloses a kind of plastic packaging press, and comprise press rack 2, top mold frame 3, lower mold holder 4 and press 5, it also comprises the film-covering mechanism 1 in any one of claim 3 to 7;
The both sides that film feeding device 12 in film-covering mechanism and film take-up 13 lay respectively at top mold frame 3 are symmetric;
First fixed head 152 of the first stripper apparatus is connected with film feeding device 12 and the second fixed head 157 film take-up 13 of the second stripper apparatus, the both sides that make 2 stripper apparatus also be positioned at press top mold frame 3 are symmetric;
When plastic packaging press starts, after film 11 is sent by film feeding device 12, the film 11 sent after tensioning below the first tensioning shaft 129 through the below of the first pressing mold roller 153 of the first stripper apparatus, film 11 below the first stripper apparatus is through the below of the second pressing mold roller 155 of the second stripper apparatus, through the film 11 below the second stripper apparatus through being received by film take-up 13 after tensioning below the second tensioning shaft 138, the course of film 11 is made to be positioned at the below of top mold frame 3 and to make film feeding device 12, film take-up 13, first stripper apparatus and the second stripper apparatus are all positioned at the top of film 11 course,
Vacuum suction module 16 is communicated with lower mold holder 4 with top mold frame 3, when starting vacuum suction module 16, film 11 is adsorbed on the bottom of top mold frame 3 by vacuum suction module 16;
When starting demoulding module 15, the press mold roller first pressing mold roller 153 of the first stripper apparatus pushes down film towards away from the direction motion bottom top mold frame 3 and the second pressing mold roller 155 of the second stripper apparatus pushes down film towards away from the direction motion bottom top mold frame 3 under the drive of the piston rod of the second cylinder 156 under the drive of the piston rod of the first cylinder 151, the film being positioned at the both sides of top mold frame 3 is making the bottom thin film 11 being adsorbed on top mold frame 3 leave bottom respectively under the first pressing mold roller 153 and the second pressing mold roller 155 active force.
The invention has the beneficial effects as follows: the plastic packaging press in the present invention employs this film-covering mechanism; the plastic sheeting that during use, film-covering mechanism draws one deck special between chip to be packaged and mould bases; during encapsulation, film plastic packaging material and mould bases are separated; protection mould bases is not polluted by plastic packaging material; mould bases is avoided again directly to contact with electronic device; damage is caused to chip, is easy to chip and comes off from mould bases, prevent chip surface from producing impression or scratch.The service life keeping the cleaning of mould bases, eliminate operation with mould brush cleaning mould bases, improve operating efficiency, extend plastic packaging press die.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of plastic packaging press in the present invention.
Fig. 2 is the schematic diagram of film-covering mechanism in the present invention.
Fig. 3 is the structural representation of film feeding device in the present invention.
Fig. 4 is the structural representation of film take-up in the present invention.
Fig. 5 is the structural representation of static elimination module in the present invention.
Fig. 6 is the structural representation of demoulding module in the present invention.
Fig. 7 is the structural representation of vacuum suction module in the present invention.
Fig. 8 is that in the present invention, film coiling device uses schematic diagram.
Shown in figure: 1 film-covering mechanism, 2 press racks, 3 top mold frame, 4 lower mold holders, 5 press, 11 films, 12 film feeding device, 13 film take-up, 14 static elimination modules, 15 demoulding modules, 16 vacuum suction modules, 121 films install main shaft, 122 first motors, 123 guide shafts, 124 sliding bearings, 125 first sensors, 126 first substrates, 127 drag link mechanisms, 128 encoders, 129 first tensioning shafts, 1201 first side plates, 1202 the 3rd side plates, 131 film take-up main shafts, 132 rotary plungers, 133 rotating shafts, 134 second substrates, 135 second side plates, 136 second motors, 137 handles, 138 second tensioning shafts, 141 first valves, 142 controllers, 143 first tracheaes, 144 ion generators, 145 nozzles, 151 first cylinders, 152 first fixed heads, 153 first press mold rollers, 154 linear bearings, 155 second pressing mold rollers, 156 second cylinders, 157 second fixed heads, 158 second sensors, 161 vavuum pumps, 162 mounting bases, 163 pressure vacuum gauges, 164 adapters, 165 second tracheaes, 166 gas joints, 167 filters, 168 second valves.
Detailed description of the invention
Below in conjunction with figure, the present invention is described further.
The embodiment 1 of film-covering mechanism in the present invention: a kind of for the film-covering mechanism in plastic packaging system, comprise winding film module, static elimination module 14, striping module 15 and vacuum suction module 16, winding film module comprises film coiling device, film coiling device comprises motor and the main shaft for coiled film 11, main shaft is connected with motor-driven, demoulding module 15 comprises stripper apparatus, the press mold roller that stripper apparatus comprises cylinder and is connected with cylinder piston rod, press mold roller, static elimination module 14 and vacuum suction module 16 are positioned at above or below film 11 course.
The rotating shaft that fixed film 11 is set can be adopted in the present embodiment to store film in advance or 2 film coiling devices are set, one of them film coiling device makes film 11 to deposit for storing the modes such as film in advance; The set-up mode of motor and main shaft has multiple, such as motor is arranged on outside press rack 2, main shaft is flexibly connected with press rack 2, such as motor is affixed with press rack 2, main shaft is flexibly connected with press rack 2, the mounted motor such as substrate or side plate and main shaft are such as set, as long as ensure that the output shaft of motor is connected with spindle drive in a word, the mode be in transmission connection also have multiple, such as by modes such as chain, belt pulley, shaft couplings; Static elimination module 14 is arranged on the porch of film 11 Jin Give to mould bases; Vacuum suction module 16 can be installed on press rack 2 top, can be arranged in press rack 2, also independently can be positioned over the side of plastic packaging press, as long as film 11 can be adsorbed to the set-up mode of the bottom of top mold frame 3 or lower mold holder 4 in a word.After have employed the present embodiment, film 11 is stored in the side of top mold frame 3 or lower mold holder 4, during use, driven by motor is positioned at the main axis of the coiled film of top mold frame 3 or lower mold holder 4 opposite side, thus below the top mold frame 3 film 11 deposited being drawn out to plastic packaging press, static elimination module can eliminate electrostatic on film and dedusting, thus ensure that the clean of mould bases, film 11 is adsorbed to the bottom of top mold frame 3 or lower mold holder 4 by vacuum suction module 16 by gas circuit, film 11 is made to become the shape of mould bases completely, matched moulds packaged chip afterwards, after encapsulation completes, press mold roller in demoulding module 15 edge under the driving of cylinder is moved away from the direction bottom top mold frame 3 or away from the direction bottom lower mold holder 4, used film 11 is departed from from top mold frame 3 or lower mold holder 4.
In the present invention, the embodiment 2 of film-covering mechanism is with the difference of embodiment 1: when film coiling device has 2, lays respectively at both sides thus film-covering mechanism is started, film 11 marches to another film coiling device from one of them film coiling device, film coiling device also comprises installation frame, motor is fixed on installation frame, one end of main shaft is movably connected on installation frame, motor is connected with spindle drive, stripper apparatus has 2, each stripper apparatus also comprises the fixed head be connected with respective films coiler device, and cylinder is fixed on fixed head.
The storing mode of what the present embodiment was concrete provide film, adopt 2 film coiling devices, one of them film coiling device is used for memory films 11.The present embodiment also specifically defines motor and is fixed on installation frame, and one end of main shaft is movably connected on installation frame.Before using, 2 film coiling devices are arranged at respectively the both sides of top mold frame 3 or lower mold holder 4, thus when film-covering mechanism is started, film 11 marches to another film coiling device from one of them film coiling device.In addition the set-up mode providing stripper apparatus that the present embodiment is also concrete,, 2 stripper apparatus corresponding with film coiling device set-up mode are arranged at the both sides of top mold frame 3 or lower mold holder 4 respectively, after matched moulds has encapsulated, press mold roller edge under the driving of cylinder of the stripper apparatus of top mold frame 3 or lower mold holder 4 both sides is moved away from the direction bottom top mold frame 3 or away from the direction bottom lower mold holder 4, departed from from top mold frame 3 or lower mold holder 4 by used film 11, this mode film is stressed more even.
In the present invention, the embodiment 3 of film-covering mechanism is with the difference of embodiment 1: film coiling device has 2, one of them is film feeding device 12, another is film take-up 13, film feeding device 12 comprises the first installing plate 120, film installs main shaft 121, first motor 122 and the first tensioning shaft 129, film installs main shaft 121 and the first tensioning shaft 129 is movably connected on the first installing plate 120, first motor 122 is fixedly connected on the first installing plate 120, and the first motor 122 is installed main shaft 121 with film and is in transmission connection;
Film take-up 13 comprises film take-up main shaft 131, second substrate 134, second installing plate 135, second motor 136 and the second tensioning shaft 138, second installing plate 135 is connected with second substrate 134, second motor 136 is fixedly connected with the second installing plate 135, film take-up main shaft 131 and the second tensioning shaft 138 are flexibly connected with the second installing plate 135, and the second motor 136 is in transmission connection with film take-up main shaft 131;
Film feeding device 12 and film take-up 13 lay respectively at film 11 when both sides make film-covering mechanism start and send from film installation main shaft 121 and received by film take-up main shaft 131;
Striping module 15 comprises 2 stripper apparatus, each stripper apparatus includes fixed head, the fixed head of one of them stripper apparatus is connected with film feeding device 12, the fixed head of another stripper apparatus is connected with film take-up 13, and the cylinder in each stripper apparatus is all fixed on fixed head.
The present embodiment specifically provides the set-up mode of film coiling device, the main shaft that also specifically provides film coiling device and motor set-up mode, one in film coiling device is film feeding device 12, another is film take-up 13, both has similar structure, arrange the first tensioning shaft 129 and the second tensioning shaft 138 for ensureing tension force when film 11 is sent and received, the set-up mode of this film coiling device also can be used in the embodiment 1 or 2 of film-covering mechanism.Stripper apparatus is also arranged and top mold frame 3 or lower mold holder 4 both sides accordingly.When plastic packaging press starts, film feeding device 12 film 11 is sent after, the film 11 sent after tensioning below the first tensioning shaft 129 through the below of the first pressing mold roller 153 of the first stripper apparatus, through the film 11 below the first stripper apparatus through the below of the second pressing mold roller 155 of the second stripper apparatus, through the film 11 below the second stripper apparatus through being received by film take-up 13 after tensioning below the second tensioning shaft 138.After matched moulds has encapsulated, used film 11 along moving away from the direction bottom top mold frame 3 or away from the direction bottom lower mold holder 4, departs from by the press mold roller of the stripper apparatus of top mold frame 3 or lower mold holder 4 both sides under the driving of cylinder from top mold frame 3 or lower mold holder 4.
In the present invention, the embodiment 4 of film-covering mechanism is with the difference of embodiment 3: film feeding device 12 also comprises guide shaft 123, sliding bearing 124, first sensor 125, first substrate 126, drag link mechanism 127 and encoder 128, one end of guide shaft 123 is connected on first substrate 126, sliding bearing 124 is movably connected on guide shaft 123, drag link mechanism 127 and sliding bearing 124 are all connected with the first installing plate 120, first sensor 125 and encoder 128 are all connected with the first installing plate 120, and encoder 128 is connected with the first tensioning shaft 129 signal;
Film take-up 13 also comprises rotary plunger 132, rotating shaft 133 and handle 137, rotating shaft 133 is movably connected between second substrate 134 with the second installing plate 135, the second installing plate 135 is flexibly connected with second substrate 134, rotary plunger 132 is detachable to be fixed on second substrate 134, and handle 137 and the second installing plate 135 are connected.
Although in the present invention film-covering mechanism embodiment 1 to 3 in solve a lot of prior art Problems existing, but also have inconvenience when using, length such as due to plastic packaging press is very long, top mold frame 3 and lower mold holder 4 are positioned at the side of plastic packaging press, film coiling device or film feeding device 12 are arranged near top mold frame 3 and lower mold holder 4, thus in film coiling device one or film feeding device 12 can be far away from the side being provided with top mold frame 3 and lower mold holder 4 apart from plastic packaging press, do not have anything to affect during plastic packaging compressor operation, but when need then to need people to go to when changing film side that plastic packaging press is provided with top mold frame 3 and lower mold holder 4, cumbersome, and after the film 11 after using is by rolling, if for the film coiling device of rolling or film take-up 13 receive full after, need to change, due to existing plastic packaging press in order to its inner space of compact conformation is relatively little, therefore inconvenient when changing.The present embodiment is for addressing these problems, because the first installing plate 120 to be connected with sliding bearing 124 and sliding bearing 124 is movably connected on guide shaft 123, therefore pull drag link mechanism 127 to make to be connected with film and main shaft 121 is installed, first installing plate 120 of the first motor 122 and the first tensioning shaft 129 to plastic packaging press away from the lateral movement being provided with top mold frame 3 and lower mold holder 4, thus convenient installation on main shaft 121 at film fills film, after dress film completes, drag link mechanism 127 pushing drawing rod makes the first installing plate 120 to the side being provided with top mold frame 3 and lower mold holder 4 near plastic packaging press, complete and change film, whether the function of first sensor 125 detects film feeding device 12 to be pushed at working position, play the function of safeguard protection.If certainly stopping means also can be used to ensure that film feeding device 12 is at working position without first sensor 125.In film take-up 13, by handle 137 second installing plate 135 upwards turned over centered by rotating shaft 133 and turn 90 degrees, by rotary plunger 132, spacing for rotating shaft 133 second installing plate 135 that makes is fixed on rotation position, thus do not hindered by other module of surrounding when realizing the film after dismantling the use on film take-up main shaft 131, certainly other stopping means can also be adopted to carry out spacing.Encoder is rotary encoder, it is connected with the first tensioning shaft 138 by shaft coupling, measures the use length of film thus draw the use amount of film by the rotation number of turns calculating the first tensioning shaft 138.
In the present invention, the embodiment 5 of film-covering mechanism is with the difference of embodiment 4: the first installing plate 120 comprises the first side plate 1201, second side plate 1202 and crossbeam 1203, first side plate 1202 and the second side plate 1202 are connected, second side plate 1202 away from one end of the first side plate be provided with stretch out to be connected as a single entity with the second side plate and with the second side plate extension at an angle, side and first side plate 1201 of crossbeam 1203 are connected, the extension of opposite side and the second side plate 1202 is connected, guide shaft 123 and sliding bearing 124 are equipped with two, all be symmetric along first substrate 126 center line, one of them sliding bearing 124 and the first side plate 1201 are connected, the extension of another sliding bearing 124 and the second side plate 1202 is connected, one end of drag link mechanism 127 is by being in transmission connection with the affixed realization of crossbeam 1203 and the first installing plate 120, encoder 128 and the first side plate 1201 are connected,
2 stripper apparatus are respectively the first stripper apparatus and the second stripper apparatus, first stripper apparatus comprises the first cylinder 151, first fixed head 152 and the first pressing mold roller 153, second stripper apparatus comprises the second pressing mold roller 155, second cylinder 156 and the second fixed head 157, first cylinder 151 and the first fixed head 152 is connected, the second cylinder 156 and the second fixed head 157 are connected, piston rod and the first pressing mold roller 153 of the first cylinder 151 are connected, the second cylinder 156 and the second pressing mold roller 155 are connected;
First stripper apparatus and the second stripper apparatus are equipped with linear bearing 154 and the second sensor 158, the second sensor 158 in first stripper apparatus is connected with the first fixed head 152 with linear bearing 154, the second sensor 158 in the second stripper apparatus and linear bearing 154 second fixed head 157 connect, and the first stripper apparatus and the second stripper apparatus are flexibly connected with solid film feeding device 12 and film take-up 13 respectively by linear bearing 154.
The present embodiment specifically provides the structure of the first installing plate 120 and a kind of set-up mode of striping module, pull drag link mechanism 127 to drive the first side plate 1201 of being connected with sliding bearing 124 and the second side plate 1202 to move by crossbeam 1203 in the present embodiment, run more stable when making to pull drag link mechanism, striping module comprises the first stripper apparatus and the second stripper apparatus, first stripper apparatus and the second stripper apparatus lay respectively at top mold frame 3 or lower mold holder 4 both sides, after matched moulds has encapsulated, first pressing mold roller 153 of the first stripper apparatus under the drive of the first cylinder 151 and the second pressing mold roller 155 of the second stripper apparatus under the drive of the second cylinder 156 along moving away from the direction bottom top mold frame 3 or away from the direction bottom lower mold holder 4, used film 11 is departed from from top mold frame 3 or lower mold holder 4, second sensor 158 is for detecting the first pressing mold roller 153 and the second pressing mold roller 155 position.
In the present invention, the embodiment 6 of film-covering mechanism is with the difference of embodiment 1 to 4: static elimination module 14 comprises the first valve 141, ion generator 144 and nozzle 145, first valve 141 is communicated with ion generator 144, ion generator 144 is communicated with nozzle 145, and nozzle 145 is positioned at above or below film 11 course;
Vacuum suction module 16 comprises vavuum pump 161 and the second valve 168, second valve 168 is positioned in the gas circuit of vavuum pump 161, and vavuum pump 161 is adsorbed film 11 by gas circuit.
Plastic packaging press operationally can produce minute dusts and electrostatic, and minute dusts can be bonded at the surface of film due to the effect of electrostatic, can pollute mould bases and electronic device, can have an impact to the package quality of chip if do not removed.The present embodiment specifically provides the set-up mode of static elimination module 14 and vacuum suction module 16, open the first valve 141 in static elimination module 14, ion generator produces a large amount of positive and negative ion 144 times, the surface of film 11 is sprayed at by nozzle 145, electrostatic above neutralized film 11, nozzle 145 is apart from the surface about 10mm of film.In the present embodiment, the first valve 141 preferably selects magnetic valve; Second valve 168 is preferably selected hydraulic pilot formula magnetic valve thus is realized the gas flow optimized of large discharge.Vavuum pump 161 preferably selects that orbiting vane vavuum pump, power are 1 kilowatt, vacuum pumping rate reaches 26 cubic metres per hour.
The embodiment of the present invention 7 is with the difference of embodiment 6: static elimination module 14 also comprises controller 142 and the first tracheae 143, controller 142 is connected with the first valve 141 signal, and one end of the first tracheae 143 is communicated with the first valve 141, the other end is communicated with nozzle 145;
Vacuum suction module 16 also comprises pressure vacuum gauge 163, adapter 164, second tracheae 165, gas joint 166 and filter 167, second tracheae 165 and second valve 168, vavuum pump 161, filter 167, gas joint 166, Pressure gauge 163 is connected in series successively with adapter 164 and is communicated with.
In the present embodiment, ion generator 144 and magnetic valve 141 are controlled by controller 142, filter 167 can prevent the moisture in air and impurity from entering in vavuum pump 161, vavuum pump 161 is connected with adapter 164 by the gentle joint 166 of tracheae 165, adapter 164 is divided into two points of gas circuits again and accesses top mold frame 3 and lower mold holder 4 respectively, exhaust rapidly the air of top mold frame 3 or lower mold holder 4 li during vavuum pump work, thus film 11 is adsorbed on tightly the surface of mould bases.Arrange adapter adapter 164 gas circuit is shunted, can be vacuumized or vacuumize simultaneously (when such as product is placed on lower mold holder 4 li to top mold frame 3 or lower mold holder 4 in different situations like this, according to the needs of client, lower mold holder 4 is vacuumized product is adsorbed).
The embodiment 1 of plastic packaging press in the present invention's invention: comprise press rack 2, top mold frame 3, lower mold holder 4 and press 5, it also comprises the film-covering mechanism 1 in the embodiment 1 of film-covering mechanism, and the main shaft of the film coiling device of film-covering mechanism is arranged in press;
Plastic packaging press start time, film-covering mechanism film coiling device main shaft drive film 11 make the course of film 11 be positioned at the below of top mold frame 3;
Vacuum suction module 16 is communicated with lower mold holder 4 with top mold frame 3, when starting vacuum suction module 16, film 11 is adsorbed on the bottom of top mold frame 3 or lower mold holder 4 by vacuum suction module 16;
Push down film under the drive of press mold roller when starting demoulding module 15, in stripper apparatus at cylinder piston rod and leave bottom towards the bottom thin film 11 being adsorbed on top mold frame 3 or lower mold holder 4 that moves away from the direction bottom top mold frame 3 or bottom lower mold holder 4, makes under press mold roller active force.
The embodiment 2 of plastic packaging press in the present invention's invention: comprise press rack 2, top mold frame 3, lower mold holder 4 and press 5, it also comprises the film-covering mechanism 1 in the embodiment 2 of film-covering mechanism, the both sides that 2 film coiling devices of film-covering mechanism are positioned at press top mold frame 3 are symmetric, 2 stripper apparatus are connected with respective films coiler device, the both sides making 2 stripper apparatus also be positioned at press top mold frame 3 are symmetric, the motor of each film coiling device is all fixed on press rack 2, the main shaft of each film coiling device is all flexibly connected with on press rack 2,
Plastic packaging press start time, film-covering mechanism film coiling device main shaft drive film 11 make the course of film 11 be positioned at the below of top mold frame 3;
Vacuum suction module 16 is communicated with lower mold holder 4 with top mold frame 3, when starting vacuum suction module 16, film 11 is adsorbed on the bottom of top mold frame 3 or lower mold holder 4 by vacuum suction module 16;
Push down film under the drive of press mold roller when starting demoulding module 15, in stripper apparatus at cylinder piston rod makes the bottom thin film 11 being adsorbed on top mold frame 3 or lower mold holder 4 leave bottom towards away from the film that moving in the direction bottom top mold frame 3 or bottom lower mold holder 4, is positioned at the both sides of top mold frame 3 or lower mold holder 4 under press mold roller active force.
The embodiment 3 of plastic packaging press in the present invention's invention: comprise press rack 2, top mold frame 3, lower mold holder 4 and press 5, the film-covering mechanism 1 in any one of the embodiment 3 to 7 that it also comprises film-covering mechanism;
The both sides that film feeding device 12 in film-covering mechanism and film take-up 13 lay respectively at top mold frame 3 are symmetric;
First fixed head 152 of the first stripper apparatus is connected with film feeding device 12 and the second fixed head 157 film take-up 13 of the second stripper apparatus, the both sides that make 2 stripper apparatus also be positioned at press top mold frame 3 are symmetric;
When plastic packaging press starts, after film 11 is sent by film feeding device 12, the film 11 sent after tensioning below the first tensioning shaft 129 through the below of the first pressing mold roller 153 of the first stripper apparatus, film 11 below the first stripper apparatus is through the below of the second pressing mold roller 155 of the second stripper apparatus, through the film 11 below the second stripper apparatus through being received by film take-up 13 after tensioning below the second tensioning shaft 138, the course of film 11 is made to be positioned at the below of top mold frame 3 and to make film feeding device 12, film take-up 13, first stripper apparatus and the second stripper apparatus are all positioned at the top of film 11 course,
Vacuum suction module 16 is communicated with lower mold holder 4 with top mold frame 3, when starting vacuum suction module 16, film 11 is adsorbed on the bottom of top mold frame 3 by vacuum suction module 16;
When starting demoulding module 15, the press mold roller first pressing mold roller 153 of the first stripper apparatus pushes down film towards away from the direction motion bottom top mold frame 3 and the second pressing mold roller 155 of the second stripper apparatus pushes down film towards away from the direction motion bottom top mold frame 3 under the drive of the piston rod of the second cylinder 156 under the drive of the piston rod of the first cylinder 151, the film being positioned at the both sides of top mold frame 3 is making the bottom thin film 11 being adsorbed on top mold frame 3 leave bottom respectively under the first pressing mold roller 153 and the second pressing mold roller 155 active force.
Motor in the present invention, the first motor 122 and the second motor 136 preferably adopt servomotor, can control Driving Torque and speed like this to regulate tension force and the feed speed of film.Main shaft in the present invention, film installation main shaft 121 and film take-up main shaft 131 have the function of stretched film, air-expanding shaft can be adopted also can to adopt other structures, such as adopt following set-up mode: comprise overcoat, inner sleeve, main shaft body, toggle, inner sleeve is connected on main shaft, overcoat is at least divided into two parts, the overcoat of several part is positioned at outside inner sleeve, main shaft body makes to be synchronized with the movement with inner sleeve between several parts of overcoat when rotating, toggle comprises spill spin block and connecting rod, spill spin block is provided with eccentric orfice, one end of connecting rod is connected with spill spin block by eccentric orfice, the other end can drive several componental movements of overcoat, be in transmission connection with inner sleeve between the overcoat of several part, the quantity of connecting rod is divided into a few part according to overcoat and determines, such as overcoat be divided into two parts then connecting rod have two at least, lining the outer surface of is provided with projection, spill spin block rotate time drivening rod make several parts of overcoat along inner sleeve radial motion near or away from arranging high spot, several parts of overcoat can be allowed close to or away from lining the outer surface of under supporting role when several parts of overcoat run to high spot in projection, thus realize the tensioning of film 11 or unclamp.
In the present invention plastic packaging press embodiment 3 in the course of work of plastic packaging press be: plastic packaging press controls the first motor 122 and the second motor 136 makes film install main shaft 121 and film take-up main shaft 131 rotates, thus the film 11 be wrapped in advance to top mold frame 3 and the conveying of lower mold holder 4 direction on film installation main shaft 121 and film take-up main shaft 131, electronic device to be packaged is sent to the surface of lower mold holder by press manipulator, vavuum pump 161 is started working, film 11 is attracted to the lower surface of top mold frame, plastic packaging material enters mould bases at the flows by action of temperature and pressure, the surperficial plastic packaging covering chip is shaping.Press 5 drives mould bases to move, matched moulds plastic packaging.After plastic packaging, top mold frame 3 is separated with lower mold holder, vavuum pump quits work, pass into Compressed Gas to mould bases and break ring vacuum, the first cylinder 151, second cylinder 156 of striping module 15 moves simultaneously, used film 11 departs from by the first pressing mold roller 153, second pressing mold roller 155 from top mold frame.Controlling film main shaft 121 and film take-up main shaft 131 are installed rotate, by carrying again one section of new film 11 under mould bases while the rolling of used one section of film 11, starting the plastic packaging operation of next round.In the motion process of film, electrostatic and the dust that positive and negative ion removes film surface is blown on the surface to film of ion generator 144 interval.
In the present invention plastic packaging press embodiment 1 and 2 in the course of work of plastic packaging press similar, because the structure of the embodiment 1 and 2 of plastic packaging press is simpler, and difference is difference according to the difference of product or needs, selects to vacuumize top mold frame 3 or lower mold holder 4 and still vacuumize top mold frame 3 and lower mold holder 4 simultaneously, be attracted in which mould bases stripping direction when determining that striping module 15 runs according to film 11, therefore repeat no more.
The ETFE(ethylene tetrafluoroethylene copolymer that the material of the plastic sheeting in the present invention can be selected), the film of this material has following feature: have extraordinary ductility, and elongation can reach 500%; High temperature resistant, fusing point about 260 ° of C; Tensile strength is high, generally about 120 ~ 150Mpa.Because film ductility is good, it can be complied with and cover resin change in shape on chip to be packaged.Tool can select that width is 200mm, thickness is 50um, and entire volume length is the film of 260m, and the inner side of film is dull surface, is easy to demoulding from mould bases, and outside is light face, contacts with electronic device.
Those skilled in the art should know; protection scheme of the present invention is not limited only to the above embodiments; various permutation and combination and conversion can also be carried out on the basis of above-described embodiment; under the prerequisite without prejudice to spirit of the present invention, the various conversion that the present invention carries out all are dropped in protection scope of the present invention.
Claims (10)
1. one kind for the film-covering mechanism in plastic packaging system, it is characterized in that comprising winding film module, static elimination module (14), striping module (15) and vacuum suction module (16), described winding film module comprises film coiling device, described film coiling device comprises motor and the main shaft for coiled film (11), described main shaft is connected with motor-driven, described demoulding module (15) comprises stripper apparatus, the press mold roller that described stripper apparatus comprises cylinder and is connected with cylinder piston rod, described press mold roller, static elimination module (14) and vacuum suction module (16) are positioned at above or below film (11) course.
2. according to claim 1 a kind of for the film-covering mechanism in plastic packaging system, it is characterized in that described film coiling device has 2, when laying respectively at both sides thus film-covering mechanism is started, film (11) marches to another film coiling device from one of them film coiling device, described film coiling device also comprises installation frame, described motor is fixed on installation frame, one end of described main shaft is movably connected on installation frame, described motor is connected with spindle drive, described stripper apparatus has 2, each stripper apparatus also comprises the fixed head be connected with respective films coiler device, described cylinder is fixed on fixed head.
3. according to claim 1 a kind of for the film-covering mechanism in plastic packaging system, it is characterized in that described film coiling device has 2, one of them is film feeding device (12), another is film take-up (13), described film feeding device (12) comprises the first installing plate (120), film installs main shaft (121), first motor (122) and the first tensioning shaft (129), described film installs main shaft (121) and the first tensioning shaft (129) is movably connected on the first installing plate (120), described first motor (122) is fixedly connected on the first installing plate (120), described first motor (122) and film are installed main shaft (121) and are in transmission connection,
Described film take-up (13) comprises film take-up main shaft (131), second substrate (134), the second installing plate (135), the second motor (136) and the second tensioning shaft (138), described second installing plate (135) is connected with second substrate (134), described second motor (136) is fixedly connected with the second installing plate (135), described film take-up main shaft (131) and the second tensioning shaft (138) are flexibly connected with the second installing plate (135), and described the second motor (136) and film take-up main shaft (131) are in transmission connection;
Described film feeding device (12) and film take-up (13) lay respectively at film (11) when both sides make film-covering mechanism start and send from film installation main shaft (121) and received by film take-up main shaft (131);
Described striping module (15) comprises 2 stripper apparatus, each stripper apparatus includes fixed head, the fixed head of one of them stripper apparatus is connected with film feeding device (12), the fixed head of another stripper apparatus is connected with film take-up (13), and the cylinder in each stripper apparatus is all fixed on fixed head.
4. according to claim 3 a kind of for the film-covering mechanism in plastic packaging system, it is characterized in that described film feeding device (12) also comprises guide shaft (123), sliding bearing (124), first sensor (125), first substrate (126), drag link mechanism (127) and encoder (128), one end of described guide shaft (123) is connected on first substrate (126), described sliding bearing (124) is movably connected on guide shaft (123), described drag link mechanism (127) is all connected with the first installing plate (120) with sliding bearing (124), described first sensor (125) and encoder (128) are all connected with the first installing plate (120), described encoder (128) is connected with the first tensioning shaft (129) signal,
Described film take-up (13) also comprises rotary plunger (132), rotating shaft (133) and handle (137), described rotating shaft (133) is movably connected between second substrate (134) with the second installing plate (135), the second installing plate (135) is flexibly connected with second substrate (134), described rotary plunger (132) is detachable to be fixed on second substrate (134), and described handle (137) and the second installing plate (135) are connected.
5. according to claim 4 a kind of for the film-covering mechanism in plastic packaging system, it is characterized in that the first installing plate (120) comprises the first side plate (1201), second side plate (1202) and crossbeam (1203), described first side plate (1202) and the second side plate (1202) are connected, described second side plate (1202) away from one end of the first side plate be provided with stretch out to be connected as a single entity with the second side plate and with the second side plate extension at an angle, side and first side plate (1201) of described crossbeam (1203) are connected, the extension of opposite side and the second side plate (1202) is connected, described guide shaft (123) and sliding bearing (124) are equipped with two, all be symmetric along first substrate (126) center line, one of them sliding bearing (124) and the first side plate (1201) are connected, another sliding bearing (124) is connected with the extension of the second side plate (1202), one end of described drag link mechanism (127) is by being in transmission connection with crossbeam (1203) affixed realization and the first installing plate (120), described encoder (128) and the first side plate (1201) are connected,
Described 2 stripper apparatus are respectively the first stripper apparatus and the second stripper apparatus, described first stripper apparatus comprises the first cylinder (151), first fixed head (152) and the first pressing mold roller (153), described second stripper apparatus comprises the second pressing mold roller (155), second cylinder (156) and the second fixed head (157), described first cylinder (151) and the first fixed head (152) are connected, second cylinder (156) and the second fixed head (157) are connected, piston rod and the first pressing mold roller (153) of described first cylinder (151) are connected, second cylinder (156) and the second pressing mold roller (155) are connected,
Described first stripper apparatus and the second stripper apparatus are equipped with linear bearing (154) and the second sensor (158), the second sensor (158) in first stripper apparatus is connected with the first fixed head (152) with linear bearing (154), the second sensor (158) in the second stripper apparatus and linear bearing (154) second fixed head (157) connect, and the first stripper apparatus and the second stripper apparatus are flexibly connected with solid film feeding device (12) and film take-up (13) respectively by linear bearing (154).
6. according to any one of claim 1 to 5 a kind of for the film-covering mechanism in plastic packaging system, it is characterized in that described static elimination module (14) comprises the first valve (141), ion generator (144) and nozzle (145), described first valve (141) is communicated with ion generator (144), described ion generator (144) is communicated with nozzle (145), and described nozzle (145) is positioned at above or below film (11) course;
Described vacuum suction module (16) comprises vavuum pump (161) and the second valve (168), and described second valve (168) is positioned in the gas circuit of vavuum pump (161), and vavuum pump (161) is adsorbed film (11) by gas circuit.
7. according to claim 6 a kind of for the film-covering mechanism in plastic packaging system, it is characterized in that described static elimination module (14) also comprises controller (142) and the first tracheae (143), described controller (142) is connected with the first valve (141) signal, and one end of described first tracheae (143) is communicated with the first valve (141), the other end is communicated with nozzle (145);
Described vacuum suction module (16) also comprises mounting base (162), pressure vacuum gauge (163), adapter (164), the second tracheae (165), gas joint (166) and filter (167), second valve (168), vavuum pump (161), filter (167), gas joint (166), Pressure gauge (163) are connected in series with adapter (164) and are communicated with by described second tracheae (165) successively, described in.
8. a plastic packaging press, comprise press rack (2), top mold frame (3), lower mold holder (4) and press (5), it is characterized in that it also comprises the film-covering mechanism (1) in claim 1, the main shaft of the film coiling device of described film-covering mechanism is arranged in press;
Plastic packaging press start time, film-covering mechanism film coiling device main shaft drive film (11) make the course of film (11) be positioned at the below of top mold frame (3);
Described vacuum suction module (16) is communicated with lower mold holder (4) with top mold frame (3), when starting vacuum suction module (16), film (11) is adsorbed on the bottom of top mold frame (3) or lower mold holder (4) by vacuum suction module (16);
Push down film under the drive of press mold roller when starting demoulding module (15), in stripper apparatus at cylinder piston rod to move towards the direction away from top mold frame (3) bottom or lower mold holder (4) bottom, under press mold roller active force, make the bottom thin film (11) being adsorbed on top mold frame (3) or lower mold holder (4) leave bottom.
9. a plastic packaging press, comprise press rack (2), top mold frame (3), lower mold holder (4) and press (5), it is characterized in that it also comprises the film-covering mechanism (1) in claim 2, the both sides that 2 film coiling devices of described film-covering mechanism are positioned at press top mold frame (3) are symmetric, described 2 stripper apparatus are connected with respective films coiler device, the both sides making 2 stripper apparatus also be positioned at press top mold frame (3) are symmetric, the motor of each film coiling device is all fixed on press rack (2), the main shaft of each film coiling device is all flexibly connected with on press rack (2),
Plastic packaging press start time, film-covering mechanism film coiling device main shaft drive film (11) make the course of film (11) be positioned at the below of top mold frame (3);
Described vacuum suction module (16) is communicated with lower mold holder (4) with top mold frame (3), when starting vacuum suction module (16), film (11) is adsorbed on the bottom of top mold frame (3) or lower mold holder (4) by vacuum suction module (16);
Push down film under the drive of press mold roller when starting demoulding module (15), in stripper apparatus at cylinder piston rod makes the bottom thin film (11) being adsorbed on top mold frame (3) or lower mold holder (4) leave bottom towards away from the film that moving in the direction bottom top mold frame (3) or bottom lower mold holder (4), is positioned at the both sides of top mold frame (3) or lower mold holder (4) under press mold roller active force.
10. a plastic packaging press, comprises press rack (2), top mold frame (3), lower mold holder (4) and press (5), it is characterized in that it also comprises the film-covering mechanism (1) in any one of claim 3 to 7;
The both sides that film feeding device (12) in described film-covering mechanism and film take-up (13) lay respectively at top mold frame (3) are symmetric;
First fixed head (152) of described first stripper apparatus is connected with film feeding device (12) and the second fixed head (157) film take-up (13) of described second stripper apparatus, the both sides that make 2 stripper apparatus also be positioned at press top mold frame (3) are symmetric;
When plastic packaging press starts, after film (11) is sent by film feeding device (12), the film (11) sent through the first tensioning shaft (129) below tensioning after through the below of the first pressing mold roller (153) of the first stripper apparatus, film (11) below the first stripper apparatus is through the below of the second pressing mold roller (155) of the second stripper apparatus, received by film take-up (13) after the second tensioning shaft (138) below tensioning through the film (11) below the second stripper apparatus, the course of film (11) is made to be positioned at the below of top mold frame (3) and to make film feeding device (12), film take-up (13), first stripper apparatus and the second stripper apparatus are all positioned at the top of film (11) course,
Described vacuum suction module (16) is communicated with lower mold holder (4) with top mold frame (3), when starting vacuum suction module (16), film (11) is adsorbed on the bottom of top mold frame (3) by vacuum suction module (16);
When starting demoulding module (15), press mold roller first pressing mold roller (153) of the first stripper apparatus pushes down film towards away from the direction motion of top mold frame (3) bottom and the second pressing mold roller (155) of the second stripper apparatus pushes down film towards making bottom the bottom thin film (11) being adsorbed on top mold frame (3) leaves under the first pressing mold roller (153) and the second pressing mold roller (155) active force respectively away from the direction motion of top mold frame (3) bottom, the film of both sides that is positioned at top mold frame (3) under the drive of the piston rod of the second cylinder (156) under the drive of the piston rod of the first cylinder (151).
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