Vacuum film forming machine for producing FPC (Flexible Printed Circuit)

Abstract

The utility model discloses a vacuum film forming machine for FPC (flexible printed circuit) production, which belongs to the technical field of circuit board production and comprises a workbench, a case is connected above the workbench, and an air exhaust mechanism is arranged on one side of the case; the installation assembly is arranged, the installation cylinder provided with the purification filtering mechanism is movably attached to the inner side wall of the machine box, the inserting cylinder is movably inserted into the inserting groove, under the action of the sealing ring, gaps between the inserting cylinder and the inserting groove can be avoided, then the abutting cylinder is moved towards the installation cylinder, and therefore the purification filtering mechanism can be installed conveniently. The abutting cylinder moves to drive the moving rod to move in the moving groove, the moving rod moves to drive the connecting spring to stretch, when the abutting cylinder moves to be attached to the end of the mounting cylinder, the moving rod moves along with the abutting cylinder to be attached to the T-shaped threaded rod, then the fixing nut is screwed to the T-shaped threaded rod in a rotating mode, the T-shaped threaded rod is attached to the side wall of the moving rod, and the mounting cylinder can be disassembled and assembled conveniently. Furthermore, the disassembly and assembly operation of the purifying and filtering mechanism can be conveniently realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit board production, and in particular relates to a vacuum film forming machine for producing FPC flexible circuit boards. Background Art

[0002] FPC circuit board, also known as flexible circuit board, is a highly reliable and excellent flexible printed circuit board made of polyimide or polyester film as the base material.

[0003] Chinese patent application number 202022352110.8 discloses a vacuum film forming machine for the production of FPC flexible circuit boards, comprising a base, with support feet fixedly installed on the left and right sides of the bottom of the base, a first chassis fixedly installed in the middle of the top of the base, a control panel fixedly installed on the right side of the first chassis, a concave slide fixedly installed in the middle of the bottom of the inner cavity of the first chassis, and a slide box slidably connected to the top of the concave slide. The vacuum film forming machine for the production of FPC flexible circuit boards can uniformly coat irregular objects by providing a cover, a heating element, a movable slide rod, and a slide rail. By providing an exhaust pump, an air suction pipe, an air outlet pipe, an electromagnetic valve, a filter layer, and a purification layer, a stable vacuum and dust-free environment can be maintained in the chassis, thereby improving work efficiency.

[0004] In the above patent, a purification layer and a filter layer are provided inside the intake pipe. However, when the purification layer and the filter layer are used for a long time and affect the purification and filtration effects, it is difficult for the operator to clean and replace the purification layer and the filter layer. In addition, the FPC flexible circuit board is placed inside the lamination mold for coating operation. After coating, it is difficult for the operator to remove the coated FPC flexible circuit board from the lamination mold. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a vacuum film forming machine for producing FPC flexible circuit boards, which has the characteristics of easy disassembly and assembly, and lifting and discharging.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vacuum film forming machine for the production of FPC flexible circuit boards, comprising a workbench, a chassis connected above the workbench, an exhaust mechanism provided on one side of the chassis, a placement mechanism provided inside the chassis, a purification and filtering mechanism provided inside the chassis and on one side of the placement mechanism, a coating mechanism provided inside the chassis and above the placement mechanism, a heat dissipation mechanism provided above the chassis, an installation component provided between the chassis and the purification and filtering mechanism, and a lifting component provided inside the placement mechanism.

[0007] Preferably, the mounting assembly includes a mounting cylinder, a fastening piece, a plug-in cylinder, a plug-in groove and a sealing ring. The periphery of the purification and filtering mechanism is connected to the mounting cylinder, the end of the mounting cylinder close to the chassis is connected to the plug-in cylinder, the interior of the chassis is provided with a plug-in groove at a position corresponding to the plug-in cylinder, the end of the plug-in cylinder close to the plug-in groove is connected to a sealing ring, and a fastening piece is provided on the chassis at one end of the mounting cylinder.

[0008] Preferably, the clamping member includes a movable groove, a connecting spring, a movable rod, a fixing nut, a T-shaped threaded rod and an abutment cylinder. A movable groove is provided inside the chassis, a movable rod is provided inside the movable groove, a connecting spring is connected between the movable groove and the movable rod, a T-shaped threaded rod is connected inside the chassis and on one side of the movable groove, a fixing nut is connected at one end of the T-shaped threaded rod and on one side of the movable rod, and an abutment cylinder is connected at one end of the movable rod close to the mounting cylinder.

[0009] Preferably, a fixed guide column is connected to the interior of the movable groove, and a circular guide hole is provided on the movable rod at a position corresponding to the fixed guide column.

[0010] Preferably, the lifting assembly includes a lifting plate, a lifting rod, a return spring and a fixed cylinder. The interior of the placement mechanism is connected to the fixed cylinder, the interior of the fixed cylinder is plugged into the lifting rod, a return spring is connected between the lifting rod and the placement mechanism, and the lifting plate is connected to the end of the lifting rod away from the fixed cylinder.

[0011] Preferably, the jacking assembly further includes a push block and a push slot, and push blocks are connected to both sides of one end of the jacking rod close to the fixed cylinder, and a push slot is provided on the fixed cylinder at a position corresponding to the push block.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model is provided with an installation assembly, which moves the installation cylinder equipped with the purification and filtering mechanism to fit the inner wall of the chassis, and makes the plug-in cylinder move and plug into the inside of the plug-in slot. Under the action of the sealing ring, a gap between the plug-in cylinder and the plug-in slot can be avoided, and then the abutment cylinder is moved toward the installation cylinder, and the movement of the abutment cylinder drives the moving rod to move inside the moving slot. The movement of the moving rod drives the connecting spring to stretch. When the abutment cylinder moves to fit the end of the installation cylinder, the moving rod moves accordingly to fit the T-shaped threaded rod, and then the fixing nut is rotated and screwed onto the T-shaped threaded rod, and makes it fit the side wall of the moving rod, so as to facilitate the disassembly and assembly operation of the installation cylinder, and then facilitate the disassembly and assembly operation of the purification and filtering mechanism.

[0014] 2. The utility model is provided with a lifting assembly. After the coating and forming of the FPC flexible circuit board is completed, the door on the chassis is opened, and then the placement mechanism is moved to the outside of the chassis. Then, the pushing block is moved up along the pushing groove by hand. The upward movement of the pushing block drives the lifting rod to move up. The upward movement of the lifting rod drives the lifting plate to move up and the reset spring is stretched. The upward movement of the lifting plate can drive the FPC flexible circuit board to move up and away from the placement mechanism, and then the FPC flexible circuit board is removed from the lifting plate, which is convenient for the operator to take the FPC flexible circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 It is a cross-sectional view of the utility model;

[0017] Figure 3 It is a cross-sectional view of the coating mechanism of the utility model;

[0018] Figure 4 For this utility model Figure 3 Enlarged view of point A in the middle;

[0019] Figure 5 For this utility model Figure 3 Enlarged view of point B in the middle;

[0020] Figure 6 It is a cross-sectional view of the placement mechanism of the utility model;

[0021] Figure 7 For this utility model Figure 6 Enlarged view of point C in the middle.

[0022] In the figure: 1. heat dissipation mechanism; 2. chassis; 3. workbench; 4. exhaust mechanism; 5. coating mechanism; 6. placement mechanism; 7. installation assembly; 71. installation cylinder; 72. fastening member; 721. movable groove; 722. connecting spring; 723. movable rod; 724. fixing nut; 725. T-shaped threaded rod; 726. abutting cylinder; 73. plug-in cylinder; 74. plug-in groove; 75. sealing ring; 8. purification and filtering mechanism; 9. lifting assembly; 91. lifting plate; 92. lifting rod; 93. push block; 94. reset spring; 95. fixing cylinder; 96. push groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1

[0025] See also Figure 1-7 The utility model provides the following technical solutions: A vacuum film forming machine for the production of FPC flexible circuit boards, comprising a workbench 3, a chassis 2 connected above the workbench 3, an exhaust mechanism 4 provided on one side of the chassis 2, a placement mechanism 6 provided inside the chassis 2, a purification and filtering mechanism 8 provided inside the chassis 2 and located on one side of the placement mechanism 6, a coating mechanism 5 provided inside the chassis 2 and located above the placement mechanism 6, a heat dissipation mechanism 1 provided above the chassis 2, a mounting assembly 7 provided between the chassis 2 and the purification and filtering mechanism 8, and a lifting assembly 9 provided inside the placement mechanism 6.

[0026] Specifically, the mounting assembly 7 includes a mounting cylinder 71, a fastening member 72, a plug-in cylinder 73, a plug-in groove 74 and a sealing ring 75. The periphery of the purification and filtering mechanism 8 is connected to the mounting cylinder 71, and the end of the mounting cylinder 71 close to the chassis 2 is connected to the plug-in cylinder 73. The interior of the chassis 2 is provided with a plug-in groove 74 at a position corresponding to the plug-in cylinder 73. The end of the plug-in cylinder 73 close to the plug-in groove 74 is connected to the sealing ring 75. The fastening member 72 is provided on the chassis 2 at one end of the mounting cylinder 71.

[0027] By adopting the above technical solution, the mounting cylinder 71 equipped with the purification and filtering mechanism 8 is moved to fit the inner wall of the chassis 2, and the plug-in cylinder 73 is moved and plugged into the inside of the plug-in slot 74. Under the action of the sealing ring 75, a gap between the plug-in cylinder 73 and the plug-in slot 74 can be avoided, thereby ensuring the sealing of the connection between the mounting cylinder 71 and the chassis 2. Then, the fastening member 72 is used to tighten and fix the mounting cylinder 71, which facilitates the disassembly and assembly of the mounting cylinder 71, and thus facilitates the disassembly and assembly of the purification and filtering mechanism 8.

[0028] Specifically, the abutting member 72 includes a moving groove 721, a connecting spring 722, a moving rod 723, a fixing nut 724, a T-shaped threaded rod 725 and an abutting cylinder 726. The moving groove 721 is provided inside the chassis 2, the moving rod 723 is provided inside the moving groove 721, a connecting spring 722 is connected between the moving groove 721 and the moving rod 723, a T-shaped threaded rod 725 is connected to the inside of the chassis 2 and on one side of the moving groove 721, one end of the T-shaped threaded rod 725 and on one side of the moving rod 723 is connected to the fixing nut 724, and the end of the moving rod 723 close to the mounting cylinder 71 is connected to the abutting cylinder 726.

[0029] By adopting the above technical solution, after the mounting cylinder 71 equipped with the purification and filtering mechanism 8 is moved to fit the inner wall of the chassis 2, the abutment cylinder 726 is moved toward the mounting cylinder 71, and the movement of the abutment cylinder 726 drives the moving rod 723 to move inside the moving groove 721, and the movement of the moving rod 723 drives the connecting spring 722 to stretch. When the abutment cylinder 726 moves to fit the end of the mounting cylinder 71, the moving rod 723 moves accordingly to fit the T-shaped threaded rod 725, and then the fixing nut 724 is rotated and screwed onto the T-shaped threaded rod 725, and it is made to fit the side wall of the moving rod 723. Under the action of the abutment cylinder 726, the mounting cylinder 71 can be tightened and fixed to ensure the stability of the installation of the mounting cylinder 71.

[0030] Specifically, the interior of the moving groove 721 is connected to a fixed guide column, and a circular guide hole is provided on the moving rod 723 at a position corresponding to the fixed guide column.

[0031] By adopting the above technical solution, during the movement of the moving rod 723, the cooperation of the fixed guide column and the circular guide hole can provide a guiding effect for the movement of the moving rod 723, thereby improving the stability of the movement of the moving rod 723.

[0032] When the present embodiment is used, the installation cylinder 71 equipped with the purification filter mechanism 8 is moved to fit the inner wall of the chassis 2, and the plug-in cylinder 73 is moved and plugged into the inside of the plug-in groove 74. Under the action of the sealing ring 75, a gap between the plug-in cylinder 73 and the plug-in groove 74 can be avoided. Then the abutment cylinder 726 is moved toward the installation cylinder 71. The movement of the abutment cylinder 726 drives the moving rod 723 to move inside the moving groove 721. The movement of the moving rod 723 drives the connecting spring 722 to stretch. When the abutment cylinder 726 moves to fit the end of the installation cylinder 71, the moving rod 723 moves accordingly to fit the T-shaped threaded rod 725, and then the fixing nut 724 is rotated and screwed to the T-shaped threaded rod The grooved rod 725 is placed on the side wall of the movable rod 723 to facilitate the disassembly and assembly of the installation cylinder 71, and then facilitate the disassembly and assembly of the purification and filtering mechanism 8. The FPC flexible circuit board is then placed inside the placement mechanism 6, and then the coating mechanism 5 is used to coat the FPC flexible circuit board inside the placement mechanism 6. After the coating operation is completed, the air inside the chassis 2 is extracted by the exhaust mechanism 4. During the air extraction process, the air inside the chassis 2 enters the installation cylinder 71, is purified and filtered by the purification and filtering mechanism 8, and then discharged to the surrounding environment. At the same time, the heat dissipation mechanism 1 is used to perform heat dissipation and cooling operations on the inside of the chassis 2.

[0033] Example 2

[0034] The difference between this embodiment and embodiment 1 is that the lifting assembly 9 includes a lifting plate 91, a lifting rod 92, a return spring 94 and a fixed cylinder 95. The interior of the placement mechanism 6 is connected to the fixed cylinder 95. The interior of the fixed cylinder 95 is plugged with the lifting rod 92. The return spring 94 is connected between the lifting rod 92 and the placement mechanism 6. The end of the lifting rod 92 away from the fixed cylinder 95 is connected to the lifting plate 91.

[0035] Specifically, the lifting assembly 9 also includes a push block 93 and a push slot 96. The push blocks 93 are connected to both sides of the end of the lifting rod 92 close to the fixed cylinder 95. A push slot 96 is provided on the fixed cylinder 95 at a position corresponding to the push block 93.

[0036] By adopting the above technical solution, the push block 93 is held by hand and moved upward along the push groove 96 . The upward movement of the push block 93 drives the jacking rod 92 to move upward, making it easier for the operator to move the jacking plate 91 .

[0037] When using this embodiment, after the FPC flexible circuit board is coated and formed, the box door on the chassis 2 is opened, and then the placement mechanism 6 is moved toward the outside of the chassis 2. Then, the pushing block 93 is held and moved upward along the pushing groove 96. The upward movement of the pushing block 93 drives the lifting rod 92 to move upward. The upward movement of the lifting rod 92 drives the lifting plate 91 to move upward and the return spring 94 to stretch. The upward movement of the lifting plate 91 can drive the FPC flexible circuit board to move up and away from the placement mechanism 6, and then the FPC flexible circuit board is removed from the lifting plate 91, which is convenient for the operator to take the FPC flexible circuit board.

[0038] The structure and principle of the heat dissipation mechanism 1 composed of a heat conduction plate, a cooling fan, a second chassis, and a storage plate in the utility model have been disclosed in a vacuum film forming machine for FPC flexible circuit board production disclosed in Chinese patent application number 202022352110.8. Its working principle is: a second chassis is connected to the top of the chassis 2, and a heat conduction plate is connected to the side where the chassis 2 and the second chassis are close to each other. A storage plate is fixedly installed at the bottom of the inner cavity of the second chassis, and cooling fans are fixedly installed on the left and right sides of the top of the storage plate. When in use, the storage plate is used to power the device. During the coating process, under the action of the heat conduction plate, the heat inside the chassis 2 can be transferred to the inside of the second chassis. After the coating is completed, the cooling fan is started. Under the action of the cooling fan, the heat inside the second chassis can be transferred to the surrounding environment to achieve the purpose of heat dissipation.

[0039] The structure and principle of the exhaust mechanism 4 composed of an exhaust pump, an exhaust pipe, an electromagnetic valve, a third chassis, and an intake pipe in the utility model have been disclosed in a vacuum film forming machine for FPC flexible circuit board production disclosed in Chinese patent application number 202022352110.8. Its working principle is: one side of the chassis 2 is connected to the third chassis, and the interior of the third chassis is connected to an exhaust pump, and the side of the exhaust pump close to the chassis 2 is connected to the intake pipe, and the other end of the exhaust pump is connected to the exhaust pipe, one end of the exhaust pipe passes through the third chassis, and a electromagnetic valve is provided on the exhaust pipe. When in use, the solenoid valve is opened, and the air inside the chassis 2 is extracted by the exhaust pump and the intake pipe to maintain the vacuum state inside the chassis 2.

[0040] The structure and principle of the coating mechanism 5 composed of a cover shell, a heating element, a movable slide rod, a slide rail, and a lifting device in the utility model have been disclosed in a vacuum film forming machine for FPC flexible circuit board production disclosed in Chinese patent application number 202022352110.8, and its working principle is: a lifting device is fixedly installed at the middle of the top of the inner cavity of the chassis 2, and a cover shell is fixedly installed at the bottom of the lifting device. A slide rail is fixedly installed on the top of the inner cavity of the cover shell, and movable slide rods are slidably connected on the left and right sides of the bottom of the slide rail. The bottom of the two movable slide rods passes through the cover shell and extends to the bottom outer shell of the cover shell. A heating element is fixedly installed on the bottom of the two movable slide rods. When in use, the lifting device is started to drive the cover shell to descend, and the two movable slide rods are adjusted to a suitable working angle according to the irregular surface of the circuit board, so as to complete the purpose of evaporation film forming on the circuit board.

[0041] The structure and principle of the placement mechanism 6 composed of a concave slide, a slide box, a film pressing mold, and a handle in the utility model have been disclosed in a vacuum film forming machine for the production of FPC flexible circuit boards disclosed in Chinese patent application No. 202022352110.8. Its working principle is: a concave slide is fixedly installed in the middle of the bottom of the inner cavity of the chassis 2, and a slide box is slidably connected to the top of the concave slide. A handle is fixedly installed on the front of the slide box, and a film pressing mold is fixedly installed on the top of the slide box. When in use, open the door on the chassis 2, then hold the handle to move the slide box to protrude from the concave slide, and then place the FPC flexible circuit board inside the film pressing mold.

[0042] The structure and principle of the purification and filtering mechanism 8 composed of a purification layer and a filter layer in the utility model have been disclosed in a vacuum film forming machine for FPC flexible circuit board production disclosed in Chinese patent application No. 202022352110.8. Its working principle is: one end of the mounting cylinder 71 is connected to the purification layer, and the other end of the mounting cylinder 71 is connected to the filter layer. When in use, during the operation of the exhaust mechanism 4, the air inside the chassis 2 enters the mounting cylinder 71, is purified by the purification layer, and then filtered through the filter layer and output.

[0043] When locking sill 752 is in the state of being fully embodied, locking sill 776 is positioned at the top of locking sill 742, and locking sill 776 is in the state of being fully embodied, and locking sill 776 is in the state of being fully embodied, and locking sill 776 is in the state of being fully embodied. Then, the coating mechanism 5 is used to coat the FPC flexible circuit board inside the placement mechanism 6. After the coating operation is completed, the exhaust mechanism 4 is used to extract the air inside the chassis 2. During the air extraction process, the air inside the chassis 2 enters the installation cylinder 71, is purified and filtered by the purification and filtering mechanism 8, and then discharged to the surrounding environment. At the same time, the heat dissipation mechanism 1 is used to perform heat dissipation and cooling operations on the inside of the chassis 2. After the coating of the FPC flexible circuit board is completed, the box door on the chassis 2 is opened, and the placement mechanism 6 is moved toward the outside of the chassis 2. Then, the pushing block 93 is moved upward along the pushing groove 96 by hand. The pushing block 93 moves upward to drive the lifting rod 92 to move upward. The lifting rod 92 moves upward to drive the lifting plate 91 to move upward and the return spring 94 is stretched. The lifting plate 91 moves upward to drive the FPC flexible circuit board to move up and away from the placement mechanism 6, and then the FPC flexible circuit board is removed from the lifting plate 91, which is convenient for the operator to take the FPC flexible circuit board.

[0044] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum film forming machine for producing FPC flexible circuit boards, comprising a workbench (3), a chassis (2) connected above the workbench (3), an exhaust mechanism (4) provided on one side of the chassis (2), a placement mechanism (6) provided inside the chassis (2), a purification and filtering mechanism (8) provided inside the chassis (2) and on one side of the placement mechanism (6), a coating mechanism (5) provided inside the chassis (2) and above the placement mechanism (6), and a heat dissipation mechanism (1) provided above the chassis (2), characterized in that: A mounting assembly (7) is provided between the chassis (2) and the purification and filtering mechanism (8), and a lifting assembly (9) is provided inside the placement mechanism (6).

2. The vacuum film forming machine for producing FPC flexible circuit boards according to claim 1, characterized in that: The mounting assembly (7) comprises a mounting cylinder (71), a pressing member (72), a plug-in cylinder (73), a plug-in slot (74) and a sealing ring (75); the periphery of the purification and filtering mechanism (8) is connected to the mounting cylinder (71); one end of the mounting cylinder (71) close to the chassis (2) is connected to the plug-in cylinder (73); the inside of the chassis (2) is provided with a plug-in slot (74) at a position corresponding to the plug-in cylinder (73); one end of the plug-in cylinder (73) close to the plug-in slot (74) is connected to the sealing ring (75); and a pressing member (72) is provided on the chassis (2) and at one end of the mounting cylinder (71).

3. The vacuum film forming machine for producing FPC flexible circuit boards according to claim 2, characterized in that: The abutting member (72) comprises a moving groove (721), a connecting spring (722), a moving rod (723), a fixing nut (724), a T-shaped threaded rod (725) and an abutting cylinder (726); the moving groove (721) is provided inside the chassis (2); the moving rod (723) is provided inside the moving groove (721); a connecting spring (722) is connected between the moving groove (721) and the moving rod (723); a T-shaped threaded rod (725) is connected inside the chassis (2) and located on one side of the moving groove (721); a fixing nut (724) is connected to one end of the T-shaped threaded rod (725) and located on one side of the moving rod (723); and an abutting cylinder (726) is connected to one end of the moving rod (723) close to the mounting cylinder (71).

4. The vacuum film forming machine for producing FPC flexible circuit boards according to claim 3, characterized in that: The interior of the movable groove (721) is connected to a fixed guide column, and a circular guide hole is provided on the movable rod (723) at a position corresponding to the fixed guide column.

5. The vacuum film forming machine for producing FPC flexible circuit boards according to claim 1, characterized in that: The lifting assembly (9) comprises a lifting plate (91), a lifting rod (92), a return spring (94) and a fixed cylinder (95); the interior of the placement mechanism (6) is connected to the fixed cylinder (95); the interior of the fixed cylinder (95) is plugged with the lifting rod (92); a return spring (94) is connected between the lifting rod (92) and the placement mechanism (6); and the end of the lifting rod (92) away from the fixed cylinder (95) is connected to the lifting plate (91).

6. The vacuum film forming machine for producing FPC flexible circuit boards according to claim 5, characterized in that: The lifting assembly (9) further comprises a push block (93) and a push slot (96); both sides of one end of the lifting rod (92) close to the fixed cylinder (95) are connected to the push block (93); and a push slot (96) is provided on the fixed cylinder (95) at a position corresponding to the push block (93).

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