Cover film attaching device for flexible circuit board production

Abstract

The utility model discloses a cover film attaching device for flexible circuit board production. The cover film attaching device comprises a device body. A film rolling box is installed at one end of the device body, an adjusting mechanism is arranged in the film rolling box and comprises an inner cavity formed in the film rolling box, symmetrical movable grooves are formed in one end of the inner cavity, communicating connecting grooves are formed in the movable grooves, connecting blocks are installed in the connecting grooves, sliding blocks are installed at one ends of the connecting blocks, and the sliding blocks are matched with the movable grooves. Symmetrical springs are installed on the side faces of the sliding blocks. According to the utility model, through the arrangement of the movable groove, the sliding block and the like, when a film needing to be covered is wound through the film winding roller and a film is pasted on a flexible circuit board, the wound film is conveyed through the rotation of the driving motor, when the wound film is conveyed, the winding radius of the film winding roller can be changed, and the sliding block slides in the movable groove to drive the two springs to be stretched or compressed, so that the film can be pasted on the flexible circuit board. A certain elastic force is generated, so that the rolled film is prevented from being damaged due to hard pulling, and the film pasting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flexible circuit board production, in particular to a covering film attaching device used for flexible circuit board production. Background Art

[0002] A flexible circuit board is a printed circuit board made of a flexible insulating substrate. It has the characteristics of free bending, winding, and folding, and can meet the design requirements of miniaturization and high-density installation of electronic products. Cover film attachment is an important link in the manufacturing process of flexible circuit boards. The cover film mainly plays the role of protecting the wires and indicating the placement of components. Through a precise bonding process, the cover film is tightly bonded to the flexible circuit board to ensure the stability and reliability of the circuit.

[0003] During the production of existing flexible circuit boards, it is necessary to attach a covering film to the circuit boards. During the attachment, the covering film needs to be continuously transmitted through a winding roller. Most of the existing winding rollers are fixed in the device. After a certain period of transmission and winding, the winding radius will increase, generating a certain tension. The fixed winding roller will pull the covering film hard, which may cause damage to the covering film and affect the film attaching efficiency of the flexible circuit board. Therefore, a covering film attaching device for flexible circuit board production is needed to meet people's needs. Utility Model Content

[0004] The purpose of the present utility model is to provide a cover film attaching device for the production of flexible circuit boards, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a cover film attaching device for flexible circuit board production, comprising a device body; a film roll box is installed at one end of the device body, and an adjustment mechanism is provided in the film roll box;

[0006] Preferably, the adjustment mechanism includes an inner cavity opened in the film rolling box, a symmetrical movable groove is opened at one end of the inner cavity, a connected connecting groove is opened in the movable groove, a connecting block is installed in the connecting groove, a slider is installed at one end of the connecting block, the slider is adapted to the movable groove, a symmetrical spring is installed on the side of the slider, a rotating shaft is installed at one end of the slider, a film rolling roller is installed on the side of the rotating shaft, and a driving motor is installed at one end of the rotating shaft.

[0007] Preferably, a limiting groove is provided at one end of the device body, a limiting block is slidably installed in the limiting groove, an electric push rod is installed at one end of the limiting block, a fixing plate is installed at one end of the electric push rod, a plurality of magnetic rods are installed at one end of the fixing plate, and a suction cup is installed at one end of the magnetic rod.

[0008] Preferably, a box door is installed at one end of the film roll box, and a placement table is installed at one end of the device body, and the film roll box is adapted to the placement table.

[0009] Preferably, an electrostatic precipitator is installed in the film roll box, a movable cavity is opened at one end of the film roll box, a slide is opened at one end of the movable cavity, a slide is installed at one end of the slide, and the slide is adapted to the drive motor.

[0010] Preferably, the slider is slidably installed in the movable groove, and the connecting block is slidably installed in the connecting groove.

[0011] Preferably, a transmission belt is installed at one end of the device body, and the transmission belt is adapted to the fixing plate.

[0012] Preferably, the movable cavity is communicated with the movable groove, and the output end of the driving motor is connected to one end of the rotating shaft.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] (1) The utility model sets a movable groove and a slider, etc., and uses a film roller to roll up the film to be covered. When the flexible circuit board is applied with film, the film is transmitted by the rotation of the driving motor. When the film is transmitted, the radius of the film roller will change. The slider slides in the movable groove, driving the two springs to stretch or compress, generating a certain elastic force, thereby preventing damage to the film caused by hard pulling, thereby improving the efficiency of film application.

[0015] (2) The utility model sets an electrostatic precipitator and a movable chamber, etc. When the roll film is being transported, it passes through the electrostatic precipitator in the roll film box to remove dust that may appear on the film. The slide slides in the movable chamber, driving the drive motor to move, so as to facilitate the rebound of the roll film roller. When the covering film is transported to the placement table, the fixed plate is adjusted to align with the covering film by sliding the limit groove, and the film is adsorbed by the suction cup, and the film is placed on the conveyor belt for film pasting. After pasting, it is transported to the next processing point, thereby improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a cover film attaching device for flexible circuit board production proposed by the present invention;

[0017] Figure 2 This is a schematic cross-sectional view of the structures of the limiting groove and limiting block of a cover film attaching device for flexible circuit board production proposed by the present invention;

[0018] Figure 3 This is a schematic cross-sectional view of the film roll box and inner cavity of a cover film attaching device for flexible circuit board production proposed by the present invention;

[0019] Figure 4 for Figure 2 A magnified view of point A;

[0020] Figure 5 for Figure 3 Enlarged view of point B.

[0021] In the figure: 1. Device body; 2. Adjustment mechanism; 3. Limiting groove; 4. Limiting block; 5. Electric push rod; 6. Fixed plate; 7. Magnetic rod; 8. Suction cup; 9. Film roll box; 10. Box door; 11. Placement table; 12. Conveyor belt; 13. Electrostatic precipitator; 14. Movable cavity; 15. Slide groove; 16. Slide plate; 21. Inner cavity; 22. Movable groove; 23. Connecting groove; 24. Connecting block; 25. Slider; 26. Spring; 27. Rotating shaft; 28. Film roll roller; 29. ​​Driving motor. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0024] The following will be combined with the accompanying 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.

[0025] Example 1: Please refer to Figure 1-5The utility model provides a technical solution: a covering film attaching device for the production of flexible circuit boards, comprising a device body 1; a film roll box 9 is installed at one end of the device body 1, and an adjusting mechanism 2 is provided in the film roll box 9; the adjusting mechanism 2 comprises an inner cavity 21 opened in the film roll box 9, a symmetrical movable groove 22 is opened at one end of the inner cavity 21, a communicating connecting groove 23 is opened in the movable groove 22, a connecting block 24 is installed in the connecting groove 23, a slider 25 is installed at one end of the connecting block 24, the slider 25 is adapted to the movable groove 22, a symmetrical spring 26 is installed on the side of the slider 25, a rotating shaft 27 is installed at one end of the slider 25, and a connecting shaft 27 is installed on the side of the rotating shaft 27. It is equipped with a film rolling roller 28, a driving motor 29 is installed at one end of the rotating shaft 27, a limiting groove 3 is provided at one end of the device body 1, a limiting block 4 is slidably installed in the limiting groove 3, an electric push rod 5 is installed at one end of the limiting block 4, a fixed plate 6 is installed at one end of the electric push rod 5, a plurality of magnetic rods 7 are installed at one end of the fixed plate 6, a suction cup 8 is installed at one end of the magnetic rod 7, a box door 10 is installed at one end of the film rolling box 9, a placing table 11 is installed at one end of the device body 1, and the film rolling box 9 is adapted to the placing table 11, the slider 25 is slidably installed in the movable groove 22, the connecting block 24 is slidably installed in the connecting groove 23, a conveyor belt 12 is installed at one end of the device body 1, and the conveyor belt 12 is connected to the fixed plate The fixed plate 6 is adapted. When it is necessary to produce and apply film to the flexible circuit board, the box door 10 is opened, and the rolled film roller 28 is installed in the film box 9 through the rotating shaft 27. The driving motor 29 is started to drive the rotating shaft 27 to rotate, and then the film roller 28 is mobilized to transmit the covering film. When passing through the electrostatic dust collector 13 in the film box 9, the surface of the film is dusted. When it is transmitted to the placement table 11, the film of the required size is cut, and the fixed plate 6 is slid to the specified position by the limit block 4 in the limit groove 3. The electric push rod 5 is started to mobilize the fixed plate 6 to descend, and the four sides of the film are adsorbed by the suction cup 8 at the bottom of the fixed plate 6, and the film is adsorbed and transmitted to the transmission At belt 12, the flexible circuit board on the conveyor belt 12 is filmed. One end of the magnetic rod 7 is magnetically attracted to the fixed plate 6. The magnetic rod 7 at the bottom of the fixed plate 6 can be moved to adjust the positions of multiple magnetic rods 7 to adapt to the filming of flexible circuit boards of different sizes. When the covering film on the film roller 28 is continuously transmitted, the film may be pulled hard. At this time, the slider 25 in the movable groove 22 can move under the limit of the connecting block 24. The back and forth movement of the slider 25 drives the spring 26 to be compressed or stretched, so that the film roller 28 has a certain tension during rotation and transmission, offsetting the force of hard pulling on the film, and protecting the integrity of the film by continuously transmitting the film, thereby improving the efficiency of flexible circuit board production.

[0026] Example 2: Figure 3 and 5As shown, an electrostatic precipitator 13 is installed in the film roll box 9, an active cavity 14 is provided at one end of the film roll box 9, a slide 15 is provided at one end of the active cavity 14, a slide 16 is installed at one end of the slide 15, the slide 16 is adapted to the drive motor 29, the active cavity 14 is connected to the active groove 22, the output end of the drive motor 29 is connected to one end of the rotating shaft 27, the slide 16 slides in the slide 15, and the drive motor 29 slides synchronously with the film roll roller 28 in the active cavity 14 under the limitation of the slide 16. The remaining features are the same as those in Example 1.

[0027] The working principle is as follows: when it is necessary to produce film for the flexible circuit board, the box door 10 is opened, the wrapped film roller 28 is installed in the film box 9 through the rotating shaft 27, the driving motor 29 is started to drive the rotating shaft 27 to rotate, and then the film roller 28 is mobilized to transmit the covering film, and the surface of the film is dusted when passing through the electrostatic dust collector 13 in the film box 9. When it is transmitted to the placement table 11, the film of the required size is cut, and the fixed plate 6 is slid to the specified position by sliding the limit block 4 in the limit groove 3. The electric push rod 5 is started to mobilize the fixed plate 6 to descend, and the four sides of the film are adsorbed by the suction cup 8 at the bottom of the fixed plate 6. The film is adsorbed and transmitted to the conveyor belt 12, and the flexible circuit board on the conveyor belt 12 is filmed. One end of the rod 7 is magnetically attracted to the fixed plate 6. The magnetic rod 7 at the bottom of the fixed plate 6 can be moved to adjust the positions of multiple magnetic rods 7 to adapt to flexible circuit board films of different sizes. When the covering film on the film roller 28 is continuously transmitted, the film may be pulled hard. At this time, the slider 25 in the movable groove 22 can move under the limit of the connecting block 24. The back and forth movement of the slider 25 drives the spring 26 to be compressed or stretched, so that the film roller 28 has a certain tension during rotation and transmission, offsetting the force of hard pulling on the film. At the same time, the slide 16 slides in the slide groove 15, and the drive motor 29 slides synchronously with the film roller 28 in the active cavity 14 under the limit of the slide 16. By continuously transmitting the film to protect the integrity of the film, the efficiency of flexible circuit board production is improved.

[0028] 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 cover film attaching device for flexible circuit board production, comprising a device body (1); characterized in that: A film roll box (9) is installed at one end of the device body (1), and an adjustment mechanism (2) is provided in the film roll box (9); The regulating mechanism (2) comprises an inner cavity (21) provided in a film rolling box (9), a symmetrical movable groove (22) provided at one end of the inner cavity (21), a connected connecting groove (23) provided in the movable groove (22), a connecting block (24) installed in the connecting groove (23), a slider (25) installed at one end of the connecting block (24), the slider (25) being adapted to the movable groove (22), a symmetrical spring (26) installed on the side of the slider (25), a rotating shaft (27) installed at one end of the slider (25), a film rolling roller (28) installed on the side of the rotating shaft (27), and a driving motor (29) installed at one end of the rotating shaft (27).

2. The cover film attaching device for flexible circuit board production according to claim 1, characterized in that: A limiting groove (3) is provided at one end of the device body (1), a limiting block (4) is slidably installed in the limiting groove (3), an electric push rod (5) is installed at one end of the limiting block (4), a fixing plate (6) is installed at one end of the electric push rod (5), a plurality of magnetic rods (7) are installed at one end of the fixing plate (6), and a suction cup (8) is installed at one end of the magnetic rod (7).

3. The cover film attaching device for flexible circuit board production according to claim 1, characterized in that: A box door (10) is installed at one end of the film roll box (9), and a placement table (11) is installed at one end of the device body (1), and the film roll box (9) is adapted to the placement table (11).

4. The cover film attaching device for flexible circuit board production according to claim 1, characterized in that: An electrostatic precipitator (13) is installed in the film roll box (9), a movable chamber (14) is provided at one end of the film roll box (9), a chute (15) is provided at one end of the movable chamber (14), a slide (16) is installed at one end of the chute (15), and the slide (16) is adapted to the drive motor (29).

5. The cover film attaching device for flexible circuit board production according to claim 1, characterized in that: The slider (25) is slidably mounted in the movable groove (22), and the connecting block (24) is slidably mounted in the connecting groove (23).

6. The cover film attaching device for flexible circuit board production according to claim 2, characterized in that: A transmission belt (12) is installed at one end of the device body (1), and the transmission belt (12) is adapted to the fixing plate (6).

7. The cover film attaching device for flexible circuit board production according to claim 4, characterized in that: The movable chamber (14) is communicated with the movable groove (22), and the output end of the driving motor (29) is connected to one end of the rotating shaft (27).

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