Automatic film tearing mechanism for MIC

Abstract

The present application relates to the technical field of flexible circuit board film tearing, and discloses a film tearing device comprising a collecting assembly and a tearing assembly. The collecting assembly is provided with a sticky side capable of adhering waste film. The tearing assembly comprises a knob connected to the base in a movable manner, and the knob can move the waste film on the workpiece to the sticky side on the supporting piece. The collecting assembly is further provided with an updating module for updating the sticky side to complete the collection of waste film. Compared with the previous manual single film tearing, the present application effectively improves the film tearing efficiency of the MIC flexible circuit board, facilitates the collection of the torn waste film, and reduces the environmental pollution of the waste film to the production space.

Description

Technical Field

[0001] This invention relates to the field of flexible circuit board film peeling technology, specifically a MIC automatic film peeling mechanism. Background Technology

[0002] The production of microphones (MICs) involves processes such as peeling the film from flexible printed circuit (FPC) components and assembly. Conventional MIC production workshops are cleanrooms, but it is very inconvenient for operators to peel the film while wearing gloves, and the waste film is difficult to collect. Furthermore, the amount of force applied and the direction of tearing can easily deform the product, causing serious defects. In addition, the small size and poor adhesion of the film further increase the difficulty of collecting waste film, causing environmental pollution. Summary of the Invention

[0003] To address the technical problems of limited film removal efficiency and difficulty in waste film collection in existing MIC flexible circuit boards, this invention provides an automatic film removal mechanism for MIC.

[0004] This invention discloses an automatic film-tearing mechanism (MIC), comprising a collection component and a tearing component. The collection component is provided with an adhesive side capable of adhering to waste film. The tearing component includes a toggle member movably connected to a base, capable of moving the waste film on the workpiece to the adhesive side located on a support member. The collection component is further provided with a renewal module for updating the adhesive side on the support member to complete the waste film collection.

[0005] As a further improvement to the above solution, the collection assembly uses adhesive tape to provide the adhesive side. The support member has an open channel for supporting the tape and directional transport of the tape. The actuating member can also engage and position the tape on the open channel, thereby assisting in the tearing action of the waste film.

[0006] As a further improvement to the above solution, the actuating element is connected to the base in a linear sliding or rotating manner, thereby achieving engagement or disengagement with the supporting element through linear translation or swinging.

[0007] As a further improvement to the above solution, the tearing assembly also includes a support plate. One side of the base is fixedly mounted on the support plate, and multiple guide wheels are rotatably connected to the support plate. The guide wheels are arranged on the support member in the front-to-back direction of the tape transmission and are used to adjust the guidance of the tape.

[0008] As a further improvement to the above solution, the tearing assembly also includes a driving component, which is fixedly mounted on the base and is connected to the force-receiving end of the agitator to drive the agitator to swing.

[0009] As a further improvement of the above-mentioned scheme, the driving member is a telescopic member. The backing member is fixed to the base, and the base is provided with a through slot. The force receiving end of the actuating member is located in the through slot. The through slot is further provided with a second elastic reset member for guiding the reset of the actuating member and providing buffering when the actuating member swings. The piston of the driving member can enter the through slot when it is elongated and abut against the force receiving end, thereby completing the cooperation or separation of the actuating member and the backing member.

[0010] As a further improvement of the above-mentioned scheme, the collecting assembly provides the adhesive side by using a tape, and the adhesive side of the backing member is renewed by feeding the tape on the backing member by a set distance in a preset direction.

[0011] According to the transmission direction of the tape, the renewal module sequentially includes a providing module, a conveying module and a winding module. The providing module is used for unwinding the tape. The conveying module can provide tension to the tape from the providing module when the tape needs to be fed. The winding module is used for winding the tape to collect the adhered waste film.

[0012] As a further improvement of the above-mentioned scheme, the providing module includes a tensioning wheel and a magnetic hysteresis damper. One end of the tensioning wheel is coaxially fixedly installed with a tape roll, the other end is rotatably connected to a mounting frame through the magnetic hysteresis damper, and releases the tape roll when rotating in a preset direction. The magnetic hysteresis damper provides a torque opposite to the release direction for the tape roll.

[0013] The conveying module includes a knurled wheel and a pressing wheel. The knurled wheel is rotatably connected to the mounting frame and coaxially fixed with a synchronous pulley. The pressing wheel is rotatably connected to one end of a swing arm, and the other end of the swing arm is hingedly connected to the mounting frame. An elastic reset member one is arranged at the hinge to guide the pressing wheel to abut against the knurled wheel.

[0014] The winding module includes a material winding power shaft, a damping bearing and a material winding wheel. The material winding power shaft is rotatably installed on the mounting frame, and the end of the material winding power shaft is rotatably connected to the material winding wheel through the damping bearing. The material winding wheel is used for winding the tape released by the providing module.

[0015] As a further improvement of the above-mentioned scheme, the collecting assembly and the tearing assembly are each provided with multiple groups, and the number of groups is one-to-one corresponding. The synchronous pulleys in each group of the collecting assembly are drivingly connected through a synchronous belt, and any one of the synchronous pulleys is fixedly installed with an output shaft of a motor.

[0016] As a further improvement of the above-mentioned scheme, the mounting frame is used for mounting the collecting assembly and the tearing assembly, and the mounting frame is installed on a carrier assembly provided on a machine table. The carrier assembly is used for driving the mounting frame to move in a plane perpendicular to the horizontal plane.

[0017] Compared with the prior art, the beneficial effects of the present application are:

[0018] 1. The MIC automatic film-tearing mechanism of the present invention, by setting up a tearing component and using a driving component to drive a moving component to reciprocate, can move the waste film on the workpiece to the adhesive side of the supporting component, thereby completing the collection of the waste film and reducing the environmental pollution of the production space caused by the waste film. Furthermore, the corresponding collection component can also refresh the adhesive side with the waste film, thus enabling continuous film tearing of batches of workpieces on the production line. This film-tearing mechanism differs from the previous manual single-piece film tearing; it can achieve continuous tearing of multiple films, improving overall efficiency.

[0019] 2. In the tearing assembly of the MIC automatic film-tearing mechanism of the present invention, a carrier assembly is provided on the machine base to provide vertical movement for the collecting assembly and the film-tearing assembly on the mounting frame. This allows the actuating component to be positioned at the film-tearing station and, after clamping the film onto the support component, to move away from the circuit board workpiece, thus completing the film-tearing action. Furthermore, by setting the actuating component to a hinged form and providing a cylinder piston and an elastic reset component on both sides of its force-bearing end, the opening and closing actions of the actuating component are consistent each time, thereby ensuring that the force and tearing direction are uniform during the film-tearing process, avoiding product deformation and reducing the defect rate.

[0020] 3. In the collection assembly of the MIC automatic film-tearing mechanism of the present invention, an adhesive tape is used to provide the adhesive side, and a providing module, a conveying module, and a winding module are arranged sequentially according to the conveying direction of the tape. This feeds the tape on the support member a predetermined distance in a preset direction, thereby achieving the renewal of the adhesive side on the support member. Furthermore, each module is equipped with corresponding fastening elements to keep the tape taut, ensuring the overall stability of the mechanism's operation and improving the reliability of the tape in collecting smaller film pieces.

[0021] 4. The MIC automatic film-tearing mechanism of the present invention can be connected to the existing production line via a docking station, or it can be used independently. It has more application scenarios, stronger adaptability, and lower installation requirements. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the MIC automatic film-tearing mechanism in a preferred embodiment of the present invention.

[0023] Figure 2 for Figure 1 A three-dimensional structural diagram of the MIC automatic film-tearing mechanism from another perspective.

[0024] Figure 3 for Figure 1 A three-dimensional structural diagram of multiple tearing components.

[0025] Figure 4 for Figure 3 A three-dimensional structural diagram of multiple tearing components from another perspective;

[0026] Figure 5 for Figure 3 A three-dimensional structural diagram of the tearing component when the actuating element opens;

[0027] Figure 6 for Figure 5 A three-dimensional structural diagram of the tearing component when the actuating element is closed;

[0028] Figure 7 for Figure 6 A three-dimensional structural diagram of the tearing component from another perspective;

[0029] Figure 8 for Figure 1 The module provides a 3D structural diagram;

[0030] Figure 9 for Figure 1 A three-dimensional structural diagram of multiple conveyor modules;

[0031] Figure 10 Figure 1 A three-dimensional structural diagram of the winding module.

[0032] Figure reference numerals:

[0033] 10. Collection component; 100. Adhesive side; 101. Feeding module; 1011. Tensioning wheel; 1012. Baffle; 1013. Hysteresis damping; 102. Conveying module; 1021. Knurled wheel; 1022. Pressure wheel; 1023. Swing arm; 1024. Synchronous pulley; 103. Rewinding module; 1031. Rewinding drive shaft; 1032. Damping bearing; 1033. Rewinding wheel; 20. Tearing component; 201. Base; 2010, through slot; 202, drive component; 203, support component; 2031, support block; 2032, stop block; 204, actuating component; 2041, force-bearing end; 205, elastic reset component II; 206, support plate; 207, guide wheel; 30, mounting bracket; 40, machine base; 50, carrier assembly; 501, Y-axis linear actuator; 502, Z-axis linear actuator; 6, synchronous belt; 7, motor; 8, tape roll. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] This embodiment provides an automatic MIC film-tearing mechanism, which can effectively, quickly and accurately tear the MIC sealing film from the FPC body, effectively collect waste film, improve production efficiency, ensure product yield, and effectively control environmental pollution.

[0036] Please see Figure 1 and Figure 2 The MIC automatic film-tearing mechanism includes a collection component 10 and a tearing component 20, and may also include a mounting frame 30, a machine base 40, and a carrier component 50. Multiple sets of both the collection component 10 and the tearing component 20 can be provided, with a one-to-one correspondence, to perform the film-tearing process on flexible circuit board workpieces on multiple production lines. In this embodiment, there are four sets of both the collection component 10 and the tearing component 20. Of course, in other embodiments, other quantities, not less than one set, can be set according to the production line requirements of the MIC.

[0037] A carrier assembly 50 is provided on the upper surface of the machine base 40. In this embodiment, the machine base 40 can be fixed to the docking platform. In some embodiments, the machine base 40 itself can also be the docking platform. Thus, the MIC automatic film-tearing mechanism can be connected to the original MIC production line or used independently, making the MIC automatic film-tearing mechanism more versatile, adaptable, and with lower installation requirements.

[0038] The carrier assembly 50 drives the mounting frame 30 to move in a plane perpendicular to the horizontal plane, thereby causing the collecting assembly 10 and the tearing assembly 20 on the mounting frame 30 to move synchronously. Specifically, the carrier assembly 50 may include a Y-axis linear actuator 501 (i.e., in the forward and backward direction) and a Z-axis linear actuator 502 (i.e., in the height direction). The Z-axis linear actuator 502 is fixedly mounted on the moving end of the Y-axis linear actuator 501, while the mounting frame 30 is fixedly mounted on the moving end of the Z-axis linear actuator, thereby enabling the mounting frame 30, together with the collecting assembly 10 and the tearing assembly 20, to move in the YZ plane.

[0039] It should be noted that the mounting bracket 30 may have multiple mounting points, so its shape is not limited. In some embodiments, the mounting bracket 30 may be composed of multiple plates / blocks for collecting the various components in the assembly 10 and the tearing assembly 20 to achieve installation.

[0040] The collection component 10 is provided with an adhesive side 100 capable of adhering to waste film. In this embodiment, the collection component 10 may use adhesive tape to provide the adhesive side 100. Of course, in some embodiments, the collection component 10 may also use other common adsorption / adhesion tools to provide the adhesive side 100, such as vacuum suction cups, glue trays, etc., as long as the waste film can be collected stably.

[0041] Please see Figures 3 to 7The tearing assembly 20 includes a base 201, a drive component 202, a support component 203, and a toggle component 204. It may also include a support plate 206 and multiple guide wheels 207. The side of the base 201 is fixedly mounted on the support plate 206, and the support plate 206 is fixedly connected to the mounting bracket 30. The support component 203 is fixedly connected to the base 201 and provides support for the localized adhesive side 100 of the tape. Multiple guide wheels 207 are rotatably connected to the support plate 206 and are arranged upstream and downstream of the support component 203 along the transmission direction. The specific number and position can be reasonably arranged according to the actual application. The multiple guide wheels 207 can adjust the guidance of the tape. In some embodiments, a waist-shaped groove can be formed in the support plate 206, and the guide wheels 207 are installed in the waist-shaped groove. The installation position of the guide wheels 207 can be adjusted within the waist-shaped groove, thereby adjusting the tension of the tape.

[0042] The actuating element 204 is hinged to the base 201. One end of the actuating element 204 is connected to the driving element 202 to achieve reciprocating oscillation around the hinge point, and the other end can be moved by the oscillation to the adhesive side 100 on the support element 203. Of course, in other embodiments, the actuating element 204 can also be slidably connected to the base 201 and can be linearly slid by a linear actuator such as a cylinder, thereby completing the engagement of the actuating element 204 with the support element 203.

[0043] The support member 203 consists of a support block 2031 and two stops 2032. The support block 2031 slides in contact with the back of the tape. The two stops 2032 are fixed to both sides of the support block 2031 along the width direction of the tape, thereby forming an open channel that supports the adhesive side 100 of the tape and restricts the movement of the tape along the width direction.

[0044] The actuating element 204 can be connected to the driving element 202 in the following specific way: the driving element 202 can be a cylinder or other linear actuator. A through slot 2010 is provided on the base 201. The end of the actuating element 204 that is connected to the driving element 202 is the force-receiving end 2041, which extends into the through slot 2010. When the piston of the cylinder extends, it enters the through slot 2010 and presses against the force-receiving end 2041, thereby completing the separation action of the actuating element 204 and the support element 203. An elastic reset element 205 is installed on the through slot 2010 to buffer the separation action of the actuating element 204 and guide the actuating element 204 to return to its original position when the piston shortens. The elastic reset element 205 can be a spring, with its ends connected to one side of the through slot 2010 and the force-receiving end 2041, respectively.

[0045] In some embodiments, the reciprocating oscillation of the actuating element 204 can also be achieved through other mechanical transmission methods, such as a linkage mechanism. Additionally, the head of the actuating element 204 (i.e., the side in contact with the membrane) can be provided with teeth to increase friction during membrane clamping and prevent the membrane from detaching. The aforementioned rotational design of the actuating element 204 allows for operation within a relatively small space.

[0046] The working process of the tearing component 20 is as follows: Initially, the agitator 204 is separated from the support member 203. By operating the carrier assembly 50, the agitator 204 is positioned at the film-tearing station near the workpiece. The piston of the control drive member 202 (i.e., the cylinder) extends, overcoming the elastic force of the elastic reset member 205, and pressing the force-bearing end 2041 of the agitator 204 against the workpiece, thereby causing the other end of the agitator 204 to push the waste film to the adhesive side 100 of the support member 203. The cylinder maintains the current contact state, that is, the agitator 204 keeps clamping the waste film on the support member 203. Then, the carrier assembly 50 is operated again to move the agitator 204, the support member 203, and the waste film clamped by them away from the workpiece, thereby completing the tearing action of the waste film. After the tearing action is completed, the piston of the cylinder can be shortened and retracted, and the force-bearing end 2041 of the actuating member 204 returns to its initial position under the action of the elastic reset member 205.

[0047] In this embodiment, the collecting component 10 is also used to update the adhesive side 100 located on the support member 203. Specifically, according to the conveying direction of the tape, the collecting component 10 may sequentially include a providing module 101, a conveying module 102, and a winding module 103. The providing module 101 is used to unwind the tape. The conveying module 102 can provide tension to the tape from the providing module 101 when tape feeding is required. The winding module 103 is used to wind up the tape to collect the adhered waste film. The collecting component 10 feeds the tape on the support member 203 a predetermined distance in a predetermined direction through the conveying module 102 to achieve the update of the adhesive side 100 on the support member 203.

[0048] Please see Figure 8 The module 101 may include a tensioning wheel 1011 and a hysteresis damper 1013, and may also include a baffle 1012. The tape roll 8 is fitted onto one end of the tensioning wheel 1011 and fixed by the baffle 1012. The other end of the tensioning wheel 1011 is rotatably connected to the mounting bracket 30 via the hysteresis damper 1013, and releases the tape roll 8 when it rotates in a preset direction. The hysteresis damper 1013 provides a torque to the tape roll 8 opposite to the release direction, thereby providing a counter-tension to the tape when the conveying module 102 pauses tape feeding, keeping the tape taut.

[0049] Please see Figure 9The conveying module 102 may include a knurled wheel 1021 and a pressure wheel 1022, and may also include a synchronous pulley 1024. The knurled wheel 1021 is rotatably connected to the mounting frame 30, contacts the conveyor belt, and pulls the conveyor belt to feed it when rotating. The pressure wheel 1022 is rotatably connected to one end of a swing arm 1023, the other end of which is hinged to the mounting frame 30, and an elastic reset member (not shown) is provided at the hinge to guide the pressure wheel 1022 to abut against the knurled wheel 1021. The rolling surface of the knurled wheel 1021 has a grid pattern, and the pressure wheel 1022 can be made of ductile / rubber material, thereby ensuring close contact between the conveyor belt and the knurled wheel 1021, preventing slippage between the conveyor belt and the knurled wheel 1021, and improving the reliability of the conveyor module 102 in feeding the conveyor belt.

[0050] In this embodiment, each of the four collection components 10 has a synchronous pulley 1024. The four synchronous pulleys 1024 can be connected by a synchronous belt 6 to achieve synchronous rotation. Any one of the synchronous pulleys 1024 can be fixedly installed coaxially with the output shaft of the motor 7. The motor 7 can be a stepper motor or a servo motor, which can achieve precise fixed-pitch conveying of the tape and can also adjust the feeding pitch according to the actual size of the film.

[0051] Please see Figure 10 The take-up module 103 may include a take-up drive shaft 1031, a damping bearing 1032, and a take-up roller 1033. The take-up drive shaft 1031 is rotatably mounted on the mounting bracket 30, and the end of the take-up drive shaft 1031 is rotatably connected to the take-up roller 1033 via the damping bearing 1032. The take-up roller 1033 is used to wind the tape released by the supply module 101.

[0052] The four take-up drive shafts 1031 can also rotate synchronously, referring to the synchronous belt conveying principle in the conveying module 102, which will not be elaborated here. In this invention, the take-up drive shafts 1031 can rotate continuously. When the knurling wheel 1021 rotates to convey the tape, the take-up drive shafts 1031 rotate synchronously, wrapping the waste tape onto the take-up wheel 1033. If the knurling wheel 1021 does not convey the tape, the take-up drive shafts 1031 will slip due to the action of the damping bearing 1032, and the take-up wheel 1033 will no longer rotate to collect the waste tape. Under the action of the damping bearing, the tape is tightened, further making the tape tightly fixed in the film-tearing mechanism assembly.

[0053] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A MIC automatic film-tearing mechanism, characterized in that, The assembly includes a collection component (10), a tearing component (20), a mounting frame (30), and a carrier assembly. The collection component (10) is provided with an adhesive side (100) capable of adhering to waste film. The tearing component (20) includes a toggle (204) movably connected to a base (201) and capable of moving the waste film on the workpiece to the adhesive side (100) located on the support (203). The collection component (10) is also provided with a renewal module for updating the adhesive side (100) on the support (203) to complete the waste film collection. The mounting frame (30) is used to mount the collection component (10) and the tearing component (20), and the mounting frame (30) is mounted on the carrier assembly (50) provided on the machine base (40). The carrier assembly (50) is used to drive the mounting frame (30) to move in a plane perpendicular to the horizontal plane. In this process, the initial agitator (204) is in a separated state from the support member (203). By running the carrier assembly (50), the agitator (204) is positioned at the film-tearing station near the workpiece. The agitator (204) moves the waste film to the adhesive side (100) of the tape on the support member (203). The agitator (204) keeps the waste film clamped on the support member (203). Then, the carrier assembly (50) is run again to move the agitator (204), the support member (203), and the waste film clamped by both away from the workpiece, thereby completing the tearing action of the waste film.

2. The MIC automatic film-tearing mechanism according to claim 1, characterized in that, The collection component (10) uses tape to provide an adhesive side (100); the support member (203) is provided with an open channel for supporting the tape and for directional transmission of the tape; the actuating member (204) can also cooperate with the tape on the open channel and position it, thereby assisting in completing the tearing action of the waste film.

3. The MIC automatic film-tearing mechanism according to claim 2, characterized in that, The actuating element (204) is connected to the base (201) in a linear sliding or rotating manner, and then achieves cooperation or separation with the supporting element (203) through linear translation or swing.

4. The MIC automatic film-tearing mechanism according to claim 3, characterized in that, The tearing assembly (20) also includes a support plate (206); one side of the base (201) is fixedly installed on the support plate (206), and multiple guide wheels (207) are rotatably connected on the support plate (206). The guide wheels (207) are arranged on the back and front directions of the tape transmission on the support member (203) and are used to adjust the guidance of the tape.

5. A MIC automatic film-tearing mechanism according to any one of claims 1 to 4, characterized in that, The tearing assembly (20) also includes a drive member (202), which is fixedly mounted on the base (201). The drive member (202) is connected to the force-receiving end (2041) of the agitator (204) to drive the agitator (204) to swing.

6. The MIC automatic film-tearing mechanism according to claim 5, characterized in that, The driving component (202) is a telescopic component; the supporting component (203) is fixed to the base (201), and a through groove (2010) is provided on the base (201). The force-bearing end (2041) of the actuating component (204) is located in the through groove (2010); an elastic reset component (205) is also provided in the through groove (2010) to guide the actuating component (204) to reset and to provide buffer when the actuating component (204) swings; the piston of the driving component (202) can enter the through groove (2010) and press against the force-bearing end (2041) when it is extended, thereby completing the engagement or separation of the actuating component (204) and the supporting component (203).

7. A MIC automatic film-tearing mechanism according to any one of claims 2 to 4, characterized in that, The collecting component (10) updates the adhesive side (100) on the liner (203) by feeding the tape on the liner (203) a predetermined distance in a predetermined direction; The update module includes, in sequence, a supply module (101), a conveying module (102), and a winding module (103) according to the conveying direction of the tape. The supply module (101) is used to unwind the tape. The conveying module (102) can provide tension to the tape from the supply module (101) when tape feeding is required. The winding module (103) is used to wind up the tape to collect the adhered waste film.

8. The MIC automatic film-tearing mechanism according to claim 7, characterized in that, The providing module (101) includes a tensioning wheel (1011) and a hysteresis damper (1013); one end of the tensioning wheel (1011) is coaxially fixedly mounted with a tape roll (8), and the other end is rotatably connected to the mounting frame (30) through the hysteresis damper (1013), and releases the tape roll (8) when rotating in a preset direction; the hysteresis damper (1013) provides the tape roll (8) with a torque opposite to the release direction; The conveying module (102) includes a knurled wheel (1021) and a pressing wheel (1022); the knurled wheel (1021) is rotatably connected to the mounting frame (30) and coaxially fixed with a synchronous pulley (1024); the pressing wheel (1022) is rotatably connected to one end of a swing arm (1023), the other end of the swing arm (1023) is hinged to the mounting frame (30), and an elastic reset member is provided at the hinge to guide the pressing wheel (1022) to abut against the knurled wheel (1021); The take-up module (103) includes a take-up drive shaft (1031), a damping bearing (1032), and a take-up wheel (1033); the take-up drive shaft (1031) is rotatably mounted on the mounting frame (30), and the end of the take-up drive shaft (1031) is rotatably connected to the take-up wheel (1033) through the damping bearing (1032); the take-up wheel (1033) is used to wind the tape released by the supply module (101).

9. The MIC automatic film-tearing mechanism according to claim 8, characterized in that, The collection component (10) and the tearing component (20) are provided in multiple sets, and the number corresponds one to one; the synchronous pulleys (1024) in each collection component (10) are connected by a synchronous belt (6), and any one of the synchronous pulleys (1024) is fixedly installed with the output shaft of a motor (7).

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