CN112739002A - Novel laminating jig for soft-hard combined plate and laminating electromagnetic film - Google Patents

Novel laminating jig for soft-hard combined plate and laminating electromagnetic film Download PDF

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Publication number
CN112739002A
CN112739002A CN202011240952.2A CN202011240952A CN112739002A CN 112739002 A CN112739002 A CN 112739002A CN 202011240952 A CN202011240952 A CN 202011240952A CN 112739002 A CN112739002 A CN 112739002A
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China
Prior art keywords
air
cavity groove
air cavity
electromagnetic film
tool
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Granted
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CN202011240952.2A
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CN112739002B (en
Inventor
刘传东
覃海浪
左益明
李泽勤
岳林
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Longnan Junya Flexible Intelligent Technology Co Ltd
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Longnan Junya Flexible Intelligent Technology Co Ltd
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/0058Laminating printed circuit boards onto other substrates, e.g. metallic substrates
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/06Lamination
    • H05K2203/068Features of the lamination press or of the lamination process, e.g. using special separator sheets
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/08Treatments involving gases
    • H05K2203/081Blowing of gas, e.g. for cooling or for providing heat during solder reflowing
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/16Inspection; Monitoring; Aligning
    • H05K2203/167Using mechanical means for positioning, alignment or registration, e.g. using rod-in-hole alignment

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

The invention discloses a novel laminating jig for a soft and hard combined plate and a pressing electromagnetic film, and relates to the technical field of circuit board manufacturing. The air pipe joint is arranged on the rear side of the air cavity groove, the lower cushion plate is positioned on the air cavity groove, the linear guide rail is arranged on the air cavity groove, the sliding end of the linear guide rail is connected with the lower cushion plate, the electric push rod is arranged on the rear side of the air cavity groove, and the output end of the electric push rod is connected with the lower cushion plate. This novel soft or hard combination board pressfitting electromagnetic film laminating tool, after the hot pressing, in being connected to the air cavity groove through external cooling air supply pipeline, the air conditioning of sending into blows off through first air guide hole, second air guide hole and third air guide hole, makes electromagnetic film and the soft or hard combination board of putting on the layer board obtain rapid cooling to cause the damaged problem of electromagnetic film because of thermal influence behind the avoiding hot pressing.

Description

Novel laminating jig for soft-hard combined plate and laminating electromagnetic film
Technical Field
The invention relates to the technical field of circuit board manufacturing, in particular to a novel laminating jig for a soft-hard combined board and an electromagnetic film.
Background
In the information era, electronic products are changed with each other, printed circuit boards are more and more widely applied to electronic products, such as computers, mobile phones, cameras, video cameras, medical equipment and the like, the development of the printed circuit board industry is more and more different, and the printed circuit boards have the development trend of being transited from a PCB hard board to an FPC flexible circuit board, the FPC enables the circuit boards to be lighter and thinner, the flexibility is greatly improved, and particularly, the FPC not only has the supporting function of a rigid circuit board, but also has the characteristics of the flexible circuit board, so the FPC has more and more extensive application prospect due to the obvious superiority.
At present, the difference board of industry hardness height, electromagnetic film laminating required precision is more and more high, and the production cycle of product is more and more short, just requires the time compression of every production process extremely this moment, but electromagnetic film laminating industry still uses manual laminating more, uses flatiron or flatiron to come the point and scalds, and the electromagnetic film skew takes place easily in the operation process, and the heat dissipation is slow and causes the damaged problem of electromagnetic film, influences the yield and the efficiency of laminating production.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a novel laminating jig for a soft-hard combined board laminating electromagnetic film, which aims to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a novel soft and hard combined plate pressing electromagnetic film laminating jig comprises a base, an air pipe joint, a linear guide rail, an electric push rod, a lower cushion plate, a rubber cushion plate, a supporting plate, a telescopic spring and a positioning PIN column, wherein an air cavity groove is formed in the base, the air pipe joint is installed on the rear side of the air cavity groove, the lower cushion plate is located on the air cavity groove, the linear guide rail is installed on the air cavity groove, the sliding end of the linear guide rail is connected with the lower cushion plate, the electric push rod is installed on the rear side of the air cavity groove, the output end of the electric push rod is connected with the lower cushion plate, a first air guide hole is formed in the lower cushion plate, the rubber cushion plate is bonded on the lower cushion plate, a second air guide hole is formed in the rubber cushion plate, the supporting plate is bonded on the rubber cushion plate, a third air guide hole is formed in the supporting plate, positioning blind holes are formed in the periphery of the supporting plate, and the telescopic spring, and one end of the extension spring is fixedly connected with the bottom in the positioning blind hole, the other end of the extension spring is fixedly connected with the positioning PIN, and the supporting plate is provided with an electromagnetic film clamping groove.
As a preferred technical scheme of the invention, the two sides of the base are fixedly connected with corner blocks through screws, the corner blocks are matched with the universal C-shaped clamp to be locked on a machine table of the hot melting machine, and the inner bottom of the air cavity groove is provided with screw mounting holes.
According to a preferable technical scheme of the invention, joint mounting holes are formed in two ends of the rear side wall of the air cavity groove, the air pipe joint is in threaded connection with the joint mounting holes, a push rod through hole is formed in the rear side wall of the air cavity groove, and the output end of the electric push rod penetrates through the push rod through hole and extends into the air cavity groove.
As a preferred technical scheme of the invention, the top of the air cavity groove is provided with a stepped groove, the front side of the stepped groove is provided with an inlet and outlet opening, and the lower backing plate is positioned in the stepped groove.
As a preferable technical scheme of the invention, mounting groove positions are arranged at two ends of the inner bottom of the stepped groove, the linear guide rail is positioned on the mounting groove positions, and the front end of the linear guide rail extends to the front end of the base through the inlet and outlet opening.
As a preferable technical scheme of the invention, the distance between the bottom of the supporting plate and the top of the air cavity groove is reserved by 0.5mm-1mm, and the supporting plate is flush with the top of the base.
As a preferred technical solution of the present invention, the first air guide hole, the second air guide hole and the second air guide hole are overlapped in position, and the first air guide hole, the second air guide hole and the second air guide hole are uniformly distributed.
As a preferable technical scheme of the invention, the longitudinal and transverse spacing of the positioning PIN is matched with the positioning hole spacing of the rigid-flex board, and the height of the positioning PIN is 2mm-5mm higher than the top of the rigid-flex board.
Compared with the prior art, the invention provides a novel laminating jig for a soft and hard combined plate laminating electromagnetic film, which has the following beneficial effects:
1. this novel soft or hard combination board pressfitting electromagnetic film tool of laminating, when this tool is fixed and is carried out the operation on the board of hot melt machine, drive the layer board through control electric putter and stretch forward the processing region from the hot melt machine, the layer board is put with electromagnetic film and soft or hard combination board in proper order to the operator this moment, drive the layer board through control electric putter and reset to the processing region of hot melt machine, this kind of ejection of compact mode that delivers, make the operator can keep certain safe distance with the hot melt machine to security when improving the operation.
2. This novel soft or hard combination board pressfitting electromagnetic film laminating tool, after the hot pressing, in being connected to the air cavity groove through external cooling air supply pipeline, the air conditioning of sending into blows off through first air guide hole, second air guide hole and third air guide hole, makes electromagnetic film and the soft or hard combination board of putting on the layer board obtain rapid cooling to cause the damaged problem of electromagnetic film because of thermal influence behind the avoiding hot pressing.
3. This novel soft or hard combination board pressfitting electromagnetic film tool of laminating, the electromagnetic film fixes a position fixedly through electromagnetic film screens groove, and the soft or hard combination board fixes a position fixedly through location PIN post to guarantee precision when laminating, and fix a position PIN post and adopt the extending structure mode, can effectively play when the hot pressing and keep away the position effect.
Drawings
Fig. 1 is a schematic structural view of a novel lamination jig for a rigid-flex board and an electromagnetic film according to the present invention;
fig. 2 is an exploded view of a novel lamination jig for a rigid-flex board and an electromagnetic film according to the present invention;
fig. 3 is a front view of a pressing electromagnetic film bonding jig for a novel rigid-flex board according to the present invention;
fig. 4 is a side view of a novel lamination jig for a rigid-flex board and an electromagnetic film according to the present invention;
fig. 5 is a top view of a novel lamination jig for a rigid-flex board and an electromagnetic film according to the present invention.
In the figure: 1. a base; 2. a gas pipe joint; 3. a linear guide rail; 4. an electric push rod; 5. a lower base plate; 6. a rubber pad; 7. a support plate; 8. a tension spring; 9. positioning the PIN pillar; 10. an air cavity groove; 11. a first air guide hole; 12. a second air guide hole; 13. a third air guide hole; 14. positioning the blind hole; 15. an electromagnetic film clamping groove; 16. a corner block; 17. a screw mounting hole; 18. a connector mounting hole; 19. the push rod is provided with a through hole; 20. a stepped groove; 21. an access opening; 22. and installing a slot position.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a novel soft-hard combined plate pressing electromagnetic film laminating jig comprises a base 1, an air pipe joint 2, a linear guide rail 3, an electric push rod 4, a lower backing plate 5, a rubber backing plate 6, a supporting plate 7, a telescopic spring 8 and a positioning PIN column 9, wherein an air cavity groove 10 is arranged in the base 1, the air pipe joint 2 is arranged at the rear side of the air cavity groove 10, the lower backing plate 5 is positioned on the air cavity groove 10, the linear guide rail 3 is arranged on the air cavity groove 10, the sliding end of the linear guide rail 3 is connected with the lower backing plate 5, the electric push rod 4 is arranged at the rear side of the air cavity groove 10, the output end of the electric push rod 4 is connected with the lower backing plate 5, when the jig is fixed on a machine table of a hot melting machine to operate, the supporting plate 7 is driven to extend forwards away from a processing area of the hot melting machine by controlling the electric push rod 4, at the moment, an operator sequentially puts the electromagnetic film and, the electric push rod 4 is controlled to drive the supporting plate 7 to reset to a processing area of the hot melting machine, the feeding and discharging mode enables an operator to keep a certain safety distance with the hot melting machine so as to improve the safety during operation, the lower backing plate 5 is provided with a first air guide hole 11, the rubber backing plate 6 is adhered to the lower backing plate 5, the rubber backing plate 6 is provided with a second air guide hole 12, the supporting plate 7 is adhered to the rubber backing plate 6, the supporting plate 7 is provided with a third air guide hole 13, after hot pressing, the lower backing plate is connected to the air cavity groove 10 through an external cold air supply pipeline, the fed cold air is blown out through the first air guide hole 11, the second air guide hole 12 and the third air guide hole 13, an electromagnetic film and a soft and hard combined plate which are placed on the supporting plate 7 are rapidly cooled, the problem that the electromagnetic film is damaged due to the influence of heat after hot pressing is avoided, the periphery of the supporting plate 7 is provided with positioning blind holes, extension spring 8 and location PIN post 9 all are located location blind hole 14, and bottom fixed connection in extension spring 8's one end and location blind hole 14, the other end and location PIN post 9 fixed connection, electromagnetic film screens groove 15 has been seted up on layer board 7, and the electromagnetic film fixes a position fixedly through electromagnetic film screens groove 15, and the soft or hard combination board is fixed a position fixedly through location PIN post 9 to guarantee precision when laminating, and location PIN post 9 adopts the extending structure mode, can effectively play when hot pressing and keep away the position effect.
As a specific technical solution of this embodiment, two sides of the base 1 are fixedly connected with corner blocks 16 through screws, and the corner blocks 16 are matched with a universal C-shaped clamp to be locked on a machine table of the heat fusion machine, and the inner bottom of the air cavity groove 10 is provided with screw mounting holes 17.
In this embodiment, the base 1, the lower pad 5 and the supporting plate 7 are made of, but not limited to, bakelite plates, which have the characteristics of insulation, no generation of static electricity, wear resistance, high temperature resistance and the like, and are suitable for being used in the production line of rigid-flexible boards, and the jig can be locked on a machine table of a hot melting machine through the corner block 16 in cooperation with the universal C-shaped clamp, and can also be locked on the machine table of the hot melting machine through the screw mounting holes 17 in cooperation with the hexagon socket head cap screws.
As a specific technical scheme of this embodiment, joint mounting holes 18 have been seted up at the rear side wall both ends of air cavity groove 10, air pipe joint 2 threaded connection has on joint mounting hole 18, push rod via hole 19 has been seted up to the rear side wall of air cavity groove 10, the output of electric putter 4 passes push rod via hole 19 and extends to in the air cavity groove 10.
In this embodiment, the air pipe joint 2 is installed on the base 1 through the joint installation hole 18, the output end of the electric push rod 4 needs to pass through the push rod through hole 19 to be connected with the lower gasket, the stroke amount and the output speed of the electric push rod 4 need to be debugged in advance to be used by an operator conveniently, and meanwhile, the electric push rod 4 can be controlled by a system or a manual switch.
As a specific technical solution of this embodiment, a stepped groove 20 is disposed at the top of the air cavity groove 10, an access opening 21 is disposed at the front side of the stepped groove 20, and the lower backing plate 5 is located in the stepped groove 20.
In this embodiment, the stepped groove 20 mainly serves to limit the lower mat 5, and the access opening 21 facilitates the access of the lower mat 5.
As a specific technical solution of this embodiment, the installation slot 22 is disposed at two ends of the inner bottom of the stepped slot 20, the linear guide rail 3 is located on the installation slot 22, and the front end of the linear guide rail 3 extends to the front end of the base 1 through the access opening 21.
In this embodiment, the installation slot 22 enables the linear guide 3 to be installed in the stepped groove 20 in cooperation with the lower pad, and the linear guide 3 mainly plays a role in guiding so as to enable the stability of the lower pad to be good.
As a specific technical solution of this embodiment, a distance of 0.5mm to 1mm is reserved between the bottom of the supporting plate 7 and the top of the air cavity groove 10, and the supporting plate 7 is flush with the top of the base 1.
In the embodiment, the distance between the bottom of the supporting plate 7 and the top of the air cavity groove 10 is reserved by 0.5mm-1mm, so that the supporting plate 7 is prevented from generating large friction when entering and exiting, the supporting plate 7 is flush with the top of the base 1, and the consistency of the appearance is kept.
As a specific solution of this embodiment, the positions of the first air guide hole 11, the second air guide hole 12 and the second air guide hole 12 are overlapped, and the first air guide hole 11, the second air guide hole 12 and the second air guide hole 12 are uniformly distributed.
In this embodiment, when the external cold air supply pipeline is connected to the air cavity groove 10, the supplied cold air is blown out through the first air guide hole 11, the second air guide hole 12 and the third air guide hole 13, so that the electromagnetic film and the rigid-flexible board placed on the supporting plate 7 are rapidly cooled, the cold air supply pipeline can be provided with an electric regulating valve for controlling air intake or air inflow, and the cold air supply can be controlled by a system or a manual switch.
As a specific technical solution of this embodiment, the longitudinal and transverse pitches of the positioning PIN pillars 9 are adapted to the positioning pitch of the rigid-flex board, and the height of the positioning PIN pillars 9 is between 2mm and 5mm higher than the top of the rigid-flex board.
In this embodiment, the electromagnetic film fixes a position fixedly through electromagnetic film screens groove 15, and the rigid-flex board fixes a position fixedly through location PIN post 9 to precision when the guarantee laminating, location PIN post 9 adopt extending structure mode, can effectively play when the hot pressing and keep away the position effect.
The working principle and the using process of the invention are as follows: when in use, the jig can be locked on a machine table of a hot melting machine through the corner block 16 in cooperation with a universal C-shaped clamp and also can be locked on the machine table of the hot melting machine through the screw mounting hole 17 in cooperation with a hexagon socket head cap screw, the electric push rod 4 and an external cold air supply pipeline can be controlled by a system control or a manual switch, before operation, debugging of equipment and the jig is needed in advance to be convenient for an operator to use, during operation, the electric push rod 4 is controlled to drive the supporting plate 7 to extend forwards to be away from a processing area of the hot melting machine, at the moment, the operator reversely puts the electromagnetic film into the electromagnetic film clamping groove 15, then the soft-hard combination plate is fixed through the four-corner positioning PIN column 9, the electromagnetic film and the electric push rod 4 are controlled to drive the supporting plate 7 to reset to the processing area of the hot melting machine, and the material feeding and discharging mode ensures that the operator can keep a certain safety distance with the, the soft and hard combined plate is positioned below a hot pressing section of the vertical hot melting machine, the vertical hot melting machine is operated to press down, an electromagnetic film is pressed on the soft and hard combined plate under the action of temperature and pressure, after hot pressing, the soft and hard combined plate is connected into an air cavity groove 10 through an external cold air supply pipeline, sent cold air is blown out through a first air guide hole 11, a second air guide hole 12 and a third air guide hole 13, the electromagnetic film and the soft and hard combined plate placed on a supporting plate 7 are rapidly cooled, the problem of electromagnetic film damage caused by the influence of heat after hot pressing is avoided, then the supporting plate 7 is driven to extend forwards from a processing area of the hot melting machine by controlling an electric push rod 4, and an operator takes out a product which is subjected to hot pressing and puts in a next product to be processed to circularly operate.
To sum up, when the novel soft and hard combination plate pressing electromagnetic film laminating jig is fixed on a machine table of a hot melting machine for operation, the electric push rod 4 is controlled to drive the supporting plate 7 to extend forwards to be away from a processing area of the hot melting machine, at the moment, an operator sequentially places the electromagnetic film and the soft and hard combination plate on the supporting plate 7, and the electric push rod 4 is controlled to drive the supporting plate 7 to reset to the processing area of the hot melting machine, so that the feeding and discharging mode enables the operator to keep a certain safety distance with the hot melting machine, and the safety during operation is improved; after hot pressing, the hot pressing is connected to the air cavity groove 10 through an external cold air supply pipeline, and the fed cold air is blown out through the first air guide hole 11, the second air guide hole 12 and the third air guide hole 13, so that the electromagnetic film and the rigid-flexible combined plate which are placed on the supporting plate 7 are rapidly cooled, and the problem of damage of the electromagnetic film caused by the influence of heat after hot pressing is solved; the electromagnetic film fixes a position fixedly through electromagnetic film screens groove 15, and the rigid-flex board fixes a position fixedly through location PIN post 9 to precision when the guarantee laminating, and location PIN post 9 adopt the extending structure mode, can effectively play when the hot pressing and keep away the position effect.
It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a novel soft or hard combination board pressfitting electromagnetic film laminating tool, includes base (1), air pipe connector (2), linear guide (3), electric putter (4), lower bolster (5), rubber backing plate (6), layer board (7), expanding spring (8) and location PIN post (9), its characterized in that: the air pipe joint is characterized in that an air cavity groove (10) is arranged in the base (1), the air pipe joint (2) is arranged at the rear side of the air cavity groove (10), the lower backing plate (5) is positioned on the air cavity groove (10), the linear guide rail (3) is arranged on the air cavity groove (10), the sliding end of the linear guide rail (3) is connected with the lower backing plate (5), the electric push rod (4) is arranged at the rear side of the air cavity groove (10), the output end of the electric push rod (4) is connected with the lower backing plate (5), a first air guide hole (11) is formed in the lower backing plate (5), the rubber backing plate (6) is bonded on the lower backing plate (5), a second air guide hole (12) is formed in the rubber backing plate (6), the supporting plate (7) is bonded on the rubber backing plate (6), a third air guide hole (13) is formed in the supporting plate (7), and positioning blind holes (14) are formed in the periphery of the supporting plate (7), expanding spring (8) and location PIN post (9) all are located location blind hole (14), and bottom fixed connection in one end of expanding spring (8) and location blind hole (14), the other end and location PIN post (9) fixed connection, electromagnetic film screens groove (15) have been seted up on layer board (7).
2. The tool of claim 1, wherein the tool comprises: the two sides of the base (1) are fixedly connected with corner blocks (16) through screws, the corner blocks (16) are matched with the universal C-shaped clamp and are fixedly locked on a machine table of the hot melting machine, and screw mounting holes (17) are formed in the inner bottom of the air cavity groove (10).
3. The tool of claim 1, wherein the tool comprises: joint mounting hole (18) have been seted up at the rear side wall both ends of air cavity groove (10), air pipe joint (2) threaded connection is on joint mounting hole (18), push rod via hole (19) have been seted up to the rear side wall of air cavity groove (10), the output of electric putter (4) passes push rod via hole (19) and extends to in air cavity groove (10).
4. The tool of claim 1, wherein the tool comprises: the top in air cavity groove (10) is equipped with ladder groove (20), and the front side in ladder groove (20) is equipped with business turn over opening (21), lower bolster (5) are located ladder groove (20).
5. The tool of claim 4 for laminating the electromagnetic film on the rigid-flex board, wherein: the interior bottom both ends of ladder groove (20) are equipped with installation slot position (22), linear guide (3) are located installation slot position (22), and the front end of linear guide (3) is passed through business turn over opening (21) and is extended to the front end of base (1).
6. The tool of claim 1, wherein the tool comprises: the bottom of the supporting plate (7) is reserved with a distance of 0.5mm-1mm from the top of the air cavity groove (10), and the supporting plate (7) is flush with the top of the base (1).
7. The tool of claim 1, wherein the tool comprises: the positions of the first air guide holes (11), the second air guide holes (12) and the second air guide holes (12) are overlapped, and the first air guide holes (11), the second air guide holes (12) and the second air guide holes (12) are uniformly distributed.
8. The tool of claim 1, wherein the tool comprises: the longitudinal and transverse spacing of the positioning PIN (9) is matched with the positioning hole spacing of the rigid-flex board, and the height of the positioning PIN (9) is 2-5 mm higher than the top of the rigid-flex board.
CN202011240952.2A 2020-11-09 2020-11-09 Laminating jig for soft-hard combined plate and laminating electromagnetic film Active CN112739002B (en)

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CN112739002B CN112739002B (en) 2022-04-29

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