Device for tearing two sides of circuit board core board to protect copper foil

Abstract

The invention discloses a device for tearing protective copper foils on the two sides of a circuit board core board. The device comprises an equipment frame, a first suction cup panel module, a second suction cup panel module, an industrial robot, a laser module and two tearing structures. The process of tearing the copper foils on the two sides of the core plate comprises the steps that after the core plate at the uppermost position of a material taking position is taken out by an industrial robot, one corner of the upper portion of the core plate enters a laser module, the corner position of the copper foils on the two sides and the core plate are subjected to viscosity failure, the stimulated corner position of the copper foils and the core plate are separated, and then the core plate is transferred to a first suction cup panel; tearing off the copper foil on the front surface of the core plate at the front surface tearing position; the suction cup panel moves to a back tearing position along with the core plate, and the core plate is transferred to a suction cup panel II at the back tearing position; tearing off the copper foil on the back surface of the core plate at the back surface tearing position; and the second suction cup panel moves to a discharging position along with the core plate, and the industrial robot transfers the core plate of the second suction cup panel to the discharging position to be stacked.

Description

Technical Field

[0001] This application relates to processing equipment for circuit board cores, and particularly to a device for tearing off the protective copper foil on both sides of a circuit board core. Background Technology

[0002] The circuit board core is protected by a layer of copper foil on both sides. When using the core board, the copper foil on both sides needs to be removed. Currently, this is generally done manually by peeling off the copper foil or by using a chemical etching agent to chemically react and break down the adhesive layer between the copper foil and the core board. Manually peeling off the copper foil is laborious and inefficient. This mechanical peeling can easily cause warping, stretching, or damage to the core board, affecting its subsequent use. Using chemical etching agents requires the disposal of waste liquid, impacting the working environment. Application content

[0003] This application aims to provide a device for tearing apart the protective copper foil on both sides of a circuit board core. The device uses a laser to first disable the adhesion between a corner of the copper foil and the core board; an industrial robot, in conjunction with two sets of suction cup panels, completes the core board picking, front and back transfer, and unloading process; the two tearing structures act on this corner of the copper foil to tear it off.

[0004] This application provides a device for tearing off the protective copper foil on both sides of a circuit board core, including: The equipment rack has a material handling area and a working area arranged longitudinally. The material handling area has a material handling position and a material handling position arranged laterally. The working area has a front tearing position and a back tearing position arranged laterally. The first suction cup panel module, the suction cup panel one is used to fix the core board in a diamond shape, and can move between the front tear position and the back tear position; The second suction cup panel module is used to fix the core board in a diamond pattern and move between the back tear-off position and the material feeding position. Industrial robot with vacuum suction cup module; material handling trajectory: from the material placement position to the suction cup panel one corresponding to the front tearing position; material placement trajectory: from the suction cup panel two corresponding to the material placement position to the material placement position; The laser module corresponds to the feeding trajectory; it is used to stimulate a corner above the core board on the industrial robot, causing the adhesion between the copper foils on both sides and the core board to fail. Two tear-off structures are set at the front tear-off position and the back tear-off position, respectively.

[0005] In some embodiments, the tearing structure includes: a first pneumatic gripper module and a roller module; the first pneumatic gripper module is used to lift the copper foil above one corner of the upper core plate of the suction cup panel; the roller of the roller module moves up and down relative to the equipment frame; the roller is used to fix the copper foil lifted by the first pneumatic gripper module when it is in the upper limit position.

[0006] In some embodiments, the first pneumatic gripper module includes: a first mounting part that moves up and down relative to the equipment frame; a linear drive mechanism four that drives the first mounting part to move; a pneumatic gripper one that is hinged to the mounting part about a transverse axis; and a cylinder one that drives the pneumatic gripper one to swing.

[0007] In some embodiments, the tearing structure further includes: a second pneumatic gripper module; the second pneumatic gripper module corresponds to the lower limit state of the roller and is used to remove the copper foil that has been torn off from the roller.

[0008] In some embodiments, the second gripper of the second gripper module moves between the front tearing position and the back tearing position; the two tearing structures share one second gripper module.

[0009] In some embodiments, a rack and pinion pair is provided between the roller and the equipment frame, which is used to convert the up-and-down movement of the roller relative to the equipment frame into rotation of the roller about its own axis.

[0010] In some embodiments, the roller is hollow and the roller surface has a gap communicating with the inner cavity of the roller; a slider is slidably connected to the inner cavity of the roller, and the slider is fixed with a clamping strip extending out of the gap; the roller module also includes a cylinder three for driving the slider to move.

[0011] In some embodiments, both the material picking position and the material dispensing position are equipped with a material box, and the four vertical sidewalls of the material box are slidably and fixedly connected with limit baffles along the normal direction.

[0012] In summary, this application provides a device for tearing the protective copper foil on both sides of a circuit board core board, comprising: an equipment frame, a first suction cup panel module, a second suction cup panel module, an industrial robot, a laser module, and two sets of tearing structures. The process of tearing the copper foil on both sides of the core board is as follows: S1, after the industrial robot takes out the core board at the top of the picking position, it first moves one corner of the core board into the laser module, causing the adhesion between this corner of the copper foil and the core board to fail, and the corner of the copper foil on the back to separate from the core board, and then the core board is transferred to the first suction cup panel; S2, at the front tearing position, the copper foil on the front of the core board is torn off; S3, the first suction cup panel moves the core board with the core board to the back tearing position, and the core board is transferred to the second suction cup panel at the back tearing position; S4, at the back tearing position, the copper foil on the back of the core board is torn off; S5, the second suction cup panel moves the core board with the core board to the unloading position, and the industrial robot transfers the core board of the second suction cup panel to the unloading position for stacking.

[0013] The beneficial effects include: automatically peeling off the copper foil from both sides of the core board. Furthermore, a laser is used to first disable the adhesion between a corner of the copper foil and the core board, and then a roller is used to peel the copper foil off the core board: avoiding warping, stretching, or damage caused by mechanical peeling; high precision and good controllability; clean and environmentally friendly, requiring no chemical etchants and eliminating waste liquid disposal issues; and strong adaptability: capable of handling irregularly shaped, flexible, or brittle substrates. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.

[0015] Figure 1 This is a schematic diagram of the present application; Figure 2 A top view of the material handling area and work area on the equipment rack; Figure 3 for Figure 1 An enlarged schematic diagram of part A in the middle; Figure 4 To tear the structure open from a horizontal side view; Figure 5 The first pneumatic gripper module is shown in a side view from a horizontal perspective. Figure 6 A side view showing the copper foil being lifted at the top corner of the first pneumatic gripper module; Figure 7 This is a schematic diagram of the roller module; Figure 8 A schematic diagram showing the installation of a third cylinder and clamping strips for the winding roller; Figure 9 For along Figure 8 Sectional view of AA; Figure 10 This is a top view of the material box.

[0016] In the picture, 1. Equipment rack; 1A. Material handling area; 1A1. Material handling position; 1A2. Material handling position; 1B. Working area; 1B1. Front tearing position; 1B2. Back tearing position; 1C. Divider plate; 2. First suction cup panel module; 21. Suction cup panel one; 22. Linear drive mechanism one; 3. Second suction cup panel module; 31. Suction cup panel two; 32. Linear drive mechanism two; 4. Industrial robots; 4A. Vacuum suction cup modules; 5. Laser module; 6. Tear open the structure; 61. First pneumatic gripper module; 611. Pneumatic gripper one; 612. First mounting part; 613. Linear drive mechanism four; 614. Cylinder one; 61A. First connecting plate; 61B. Second connecting plate; 61C. Pin pair; 62. Roller module; 621. Roller; 621A. Gap; 621B. Slider; 621C. Clamping bar; 621D. Cylinder three; 621E. Extension rod; 622. Second mounting part; 623. Linear drive mechanism five; 624. Third connecting plate; 62A. Gear and rack pair; 63. Second pneumatic gripper module; 631. Pneumatic gripper two; 632. Linear drive mechanism three; 7. Material box; 7A. Limiting baffle; 7A1. Guide post; 7A2. Stud. Specific Implementation

[0017] The following description is provided in conjunction with the accompanying drawings, which are for illustrative purposes only and not strictly to scale. Unless otherwise defined, the technical or scientific terms used in this disclosure should be understood in their ordinary sense by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described object changes. Unless otherwise specified, the embodiments in this application can be combined with each other.

[0018] Please see Figure 1 and Figure 2 The device for tearing open the protective copper foil on both sides of the circuit board core includes: equipment frame 1, first suction cup panel module 2, second suction cup panel module 3, industrial robot 4, laser module 5, and two sets of tearing structures 6.

[0019] The equipment frame 1 can be constructed from profiles and sheet metal. The remaining first suction cup panel module 2, second suction cup panel module 3, industrial robot 4, laser module 5, and two sets of tearing structures 6 are all located within the space enclosed by the equipment frame 1. For ease of illustration, only a portion of the equipment frame 1 is shown.

[0020] The equipment frame 1 is designed with a material handling area 1A and a working area 1B arranged in parallel along the longitudinal direction.

[0021] The material handling area 1A has a material handling position 1A1 and a material handling position 1A2 arranged side by side in the horizontal direction. Correspondingly, both the material handling position 1A1 and the material handling position 1A2 can be equipped with a material box 7. Core boards with the copper foil still intact are stacked and placed in the material box 7 of the material handling position 1A1, and core boards with the copper foil torn are stacked and placed in the material box 7 of the material handling position 1A2.

[0022] Please see Figure 2 and Figure 10In some embodiments, based on the fact that both the material picking position 1A1 and the material discharging position 1A2 are equipped with material boxes 7, the four vertical side walls of the material box 7 are all slidably and fixedly connected with limit baffles 7A along the normal direction.

[0023] More specifically, the limiting baffle 7A can be fixedly connected to a set of guide posts 7A1. The vertical side wall of the material box 7 has holes for the guide posts 7A1 to pass through, thereby realizing the movement of the baffle relative to the guide posts 7A1. The baffle also has a T-slot, in which a stud 7A2 is inserted. The vertical side wall of the material box 7 is fixedly connected to a nut that matches the stud 7A2. Manually rotating the stud 7A2 moves the side plate. When the rotation of the stud 7A2 is stopped, the side plate is fixed in the current position relative to the material box 7.

[0024] The four limiting baffles 7A can both ensure that the core boards are stacked neatly and determine their positions, making it easier to coordinate with the industrial robot 4.

[0025] Please see Figure 1 and Figure 2 The working area 1B has a front tear-off position 1B1 and a back tear-off position 1B2 arranged side by side in the horizontal direction. That is, the copper foil on both sides of the core board is torn off at the front tear-off position 1B1 and the back tear-off position 1B2 respectively.

[0026] The first suction cup panel module 2 includes: a suction cup panel 21 and a linear drive mechanism 22.

[0027] The suction cup panel 21 is a vertical panel combined with a vacuum suction cup, which allows the core board to be adsorbed and fixed on the panel. The suction cup panel is existing technology, and the attached figure is a simplified illustration. The suction cup panel 21 fixes the core board in a diamond shape, that is, the four corners of the suction cup panel 21 face the top and bottom sides and the horizontal sides respectively. From the vertical direction, the suction cup panel 21 is diamond-shaped.

[0028] The suction cup panel 21 moves between the front tear-off position 1B1 and the back tear-off position 1B2, that is, the linear drive mechanism 22 drives the suction cup panel 21 to move back and forth linearly. The linear drive mechanism 22 has a relatively large stroke and can be a synchronous belt linear module. The linear module is existing technology, and the attached figure is a simplified illustration.

[0029] The structure of the second suction cup panel module 3 is the same as that of the first suction cup panel module 2, including: suction cup panel 2 31 and linear drive mechanism 2 32.

[0030] Since the core board needs to be transferred from suction cup panel 1 21 to suction cup panel 2 31, suction cup panel 2 31 is also used to fix the core board in a diamond shape. Suction cup panel 1 21 is for the core board to contact from the front, while suction cup panel 2 31 is for the core board to contact from the back. The size of suction cup panel 2 31 can be the same as that of suction cup panel 1 21.

[0031] The second suction cup panel 31 moves between the back tear-off position 1B2 and the feeding position 1A2, i.e., it is driven back and forth linearly by the second linear drive mechanism 32. The second linear drive mechanism 32 has a relatively large stroke and can be a synchronous belt type linear module. When both the first suction cup panel 21 and the second suction cup panel 31 are at the back tear-off position 1B2, they overlap vertically.

[0032] The industrial robot 4 is existing technology, and the attached diagram is a simplified illustration. The industrial robot 4 has a vacuum suction cup module 4A, that is, a vacuum suction cup module 4A is installed at the wrist position of the industrial robot 4, and the core board is picked up by the vacuum suction cup module 4A.

[0033] The base of the industrial robot 4 is mounted on the equipment frame 1. The movement trajectory of the vacuum suction cup module 4A can cover the material handling area 1A and the working area 1B. The material handling trajectory of the industrial robot 4 is from the material handling position 1A2 to the suction cup panel 21 corresponding to the front tearing position 1B1. The material handling trajectory of the industrial robot 4 is from the suction cup panel 31 corresponding to the material handling position 1A2 to the material handling position 1A2.

[0034] In other words, the process of tearing the copper foil from both sides of the core board is as follows: S1, Industrial robot 4 transfers the core board at the top of the picking position 1A1 to the suction cup panel 21 of the front tearing position 1B1; S2. At the tear-off position 1B1 on the front side, tear off the copper foil on the front side of the core board; S3. The suction cup panel 1 21 moves the core board to the back tear-off position 1B2 and transfers the core board to the suction cup panel 2 31 at the back tear-off position 1B2. S4. Tear off the copper foil on the back of the core board at the tear-off position 1B2. S5. The suction cup panel 2 31 moves with the core board to the feeding position 1A2. The industrial robot 4 transfers the core board of the suction cup panel 2 31 to the feeding position 1A2 for stacking.

[0035] Please see Figure 1 and Figure 3 The laser module 5 corresponds to the feeding trajectory. After the industrial robot 4 takes out the core board at the top of the picking position 1A1, it first moves the upper corner of the core board into the laser module 5, and then transfers the core board to the suction cup panel 21.

[0036] Laser module 5 is used to stimulate a corner of the core board, causing the adhesion between this corner of the copper foil and the core board to fail. Specifically, a laser of a suitable wavelength (e.g., ultraviolet laser) is used, allowing the laser to penetrate the copper foil but be strongly absorbed by the intermediate adhesive layer. The process is as follows: 1. Energy absorption: The laser is focused on the adhesive layer between the copper foil and the substrate; 2. Adhesive decomposition: After absorbing the laser energy, the adhesive rapidly pyrolyzes, vaporizes, or carbonizes, losing its adhesiveness; 3. Separation: The resulting minute gas expands or the adhesive fails, causing the corner of the copper foil stimulated to separate from the core board. More specifically, there can be two laser modules 5, each targeting one side of the core board.

[0037] Please see Figure 1 and Figure 2 For the two sets of tearing structures 6: one set of tearing structures 6 is set at the front tearing position 1B1. When the suction cup panel 1 21 is at the front tearing position 1B1, the copper foil on the front of the core board of the suction cup panel 1 21 is torn by this set of tearing structures 6; the other set of tearing structures 6 is set at the back tearing position 1B2. When the suction cup panel 2 31 is at the back tearing position 1B2, the copper foil on the back of the core board of the suction cup panel 2 31 is torn by this set of tearing structures 6.

[0038] The two sets of tearing structures 6 can be the same. Taking one set of tearing structures 6 as an example, a pneumatic gripper and a drive mechanism that drives the pneumatic gripper to form a tearing motion trajectory can be used. First, the pneumatic gripper clamps the lifted copper foil, and then drives the pneumatic gripper to move and tear off the copper foil.

[0039] In some embodiments, the tearing structure 6 may also be designed to include: a first pneumatic gripper module 61 and a roller module 62.

[0040] Please see Figure 1 , Figure 3 and Figure 4 The first gripper module 61 is used to lift the copper foil at the upper corner of the core board on the suction cup panel 21. That is, the gripper 611 is movable. After the gripper 611 clamps the part of the copper foil that is separated from the core board, the gripper 611 moves away from the core board, so that the upper corner of the copper foil is lifted.

[0041] Please see Figure 4 and Figure 6 The winding roller 621 of the winding roller module 62 moves up and down relative to the equipment frame 1. When the winding roller 621 is in the upper limit position, it is used to fix the copper foil that has been lifted by the first pneumatic gripper module 61. Process: First, the first pneumatic gripper module 61 lifts the copper foil in one corner above the core board; then the winding roller 621 moves from the lower limit position to the upper limit position, and the upper roller surface of the winding roller 621 comes into contact with the lifted copper foil. The contact position is between the pneumatic gripper 611 and the core board; then the winding roller 621 fixes the contacting copper foil, and the pneumatic gripper 611 releases the copper foil; finally, the winding roller 621 moves down and rotates at the same time, winding the copper foil onto the winding roller 621 and tearing the copper foil off the core board.

[0042] Compared to using pneumatic grippers to directly tear copper foil from the core board, adding a winding roller 621 to wind the copper foil and tear it from the core board has the following advantages: the copper foil is torn off more smoothly and stably; the torn copper foil is wound on the winding roller 621, making it smaller in size and easier to collect and process later.

[0043] Please see Figure 1 and Figure 3 In some embodiments, in addition to the pneumatic gripper 611 described above, the first pneumatic gripper module 61 also includes: a first mounting part 612, a linear drive mechanism 613, and a cylinder 614.

[0044] The first mounting part 612 is slidably connected to the equipment frame 1. More specifically, the equipment frame 1 has a horizontal partition plate 1C above the first suction cup panel module 2 and the second suction cup panel module 3. An L-shaped first connecting plate 61A is fixedly connected to the top surface of the partition plate 1C. A linear guide is provided between the vertical plate of the first mounting part 612 and the first connecting plate 61A.

[0045] By moving the first mounting part 612 up and down, the first gripper module 61 can extend / retract from the plate. When the industrial robot 4 transfers the core plate to the suction cup panel 1 21, and the suction cup panel 1 21 transfers the core plate to the suction cup panel 2 31, the corresponding first gripper module 61 retracts to avoid interference.

[0046] The linear drive mechanism 613 drives the first mounting part 612 to move. The stroke of the linear drive mechanism 613 is relatively small. A cylinder can be used as the linear drive mechanism 613. More specifically, the cylinder body can be hinged to the horizontal plate of the first connecting plate 61A, and the piston rod can be hinged to the first mounting part 612.

[0047] Please see Figure 4 , Figure 5 and Figure 6 The pneumatic gripper 611 is hinged to the first mounting part 612 around the transverse axis. The pneumatic gripper 611 can adopt a swing form with fulcrum opening and closing. More specifically, the first mounting part 612 can be hinged to a second connecting plate 61B, and the pneumatic gripper 611 can be fixedly connected to the side of the second connecting plate 61B opposite to the hinge position.

[0048] Cylinder 614 is used to drive the pneumatic gripper 611 to swing. More specifically, the cylinder body of cylinder 614 can be fixedly connected to the first mounting part 612; the second connecting plate 61B has a groove on the other side of the hinge position, and the piston rod of the cylinder cooperates with the groove to form a grooved pin pair 61C.

[0049] Please see Figure 7In some embodiments, a rack and pinion pair 62A is provided between the roller 621 and the equipment frame 1. The rack and pinion pair 62A is used to convert the up-and-down movement of the roller 621 relative to the equipment frame 1 into rotation of the roller 621 about its own axis.

[0050] More specifically, in addition to the aforementioned roller 621, the roller module 62 may further include: a second mounting portion 622 fixedly connected to the equipment frame 1; a linear drive mechanism 623 (using a linear module) disposed on the second mounting portion 622; and a third connecting plate 624 driven up and down by the linear drive mechanism 623 and rotatably connected to the roller 621. The roller 621 is fixedly equipped with a gear, and the second mounting portion 622 is fixedly connected with a rack, forming the aforementioned gear and rack pair 62A. The position of the rack relative to one side of the gear is designed so that during the downward movement of the third connecting plate 624, the rotation direction of the roller 621 corresponds to the winding of the copper foil.

[0051] While the roller 621 moves up and down, the rotation of the roller 621 can be achieved by using the gear and rack pair 62A. No additional power is needed to drive the roller 621 to rotate, making the structure simpler and more compact.

[0052] To fix the roller 621 in contact with the copper foil, vacuum adsorption can be used.

[0053] Please see Figure 8 and Figure 9 In some embodiments, the roller 621 is hollow, and its surface has a slit 621A communicating with the inner cavity of the roller 621. A slider 621B is slidably connected to the inner cavity of the roller 621, and a clamping strip 621C extending through the slit 621A is fixedly mounted on the slider 621B. The roller module 62 also includes a cylinder 621D for driving the slider 621B to move. Depending on the specific configuration of the roller module 62, the cylinder body of the cylinder 621D can be fixedly connected to the third connecting plate 624.

[0054] More specifically, the piston rod of cylinder 621D can be fixedly connected to an extension rod 621E, and the end of the extension rod 621E for sliding connection can be stepped; the slider 621B can be annular, and after the slider 621B is fitted into the end of the extension rod 621E, it is bolted to the end of the extension rod 621E to restrict the separation of the slider 621B; the extension rod 621E can drive the slider 621B to move axially, and the slider 621B and the extension rod 621E maintain relative rotation.

[0055] Because the core board is fixed in a diamond shape on the suction cup panel 21, the copper foil lifted by the first pneumatic gripper module 61 has a relatively small lateral dimension. The lifted copper foil contacts the middle position of the winding roller 621, leaving the two sides of the winding roller 621 temporarily empty, providing space for the clamping strip 621C. After the lifted copper foil contacts the middle position of the winding roller 621, the clamping strip 621C moves and engages with the roller surface to clamp the lifted copper foil.

[0056] Compared to vacuum adsorption, the clamping strip 621C makes the fixation between the copper foil and the roller 621 more stable and the structure is simpler.

[0057] Another consideration is how to remove the copper foil from the winding roller 621 after it has been wound onto the roller. The roller 621 can be designed to swing between a horizontal and a vertical position. Considering the specific configuration of the roller module 62, the third connecting plate 624 can be designed as follows: a first part connected to the linear drive mechanism 623, a second part hinged to the first part and connected to the roller 621 for rotation; and a cylinder for driving the second part to swing. In a horizontal position, the roller 621 winds up the copper foil; in a vertical position, the copper foil falls due to gravity.

[0058] Please see Figure 1 , Figure 2 and Figure 4 In some embodiments, in addition to the first pneumatic gripper module 61 and the winding roller module 62, the tearing structure 6 further includes a second pneumatic gripper module 63. The second pneumatic gripper module 63 corresponds to the winding roller 621 in the lower limit state and is used to remove the copper foil torn off from the winding roller 621. That is, the second pneumatic gripper module 63 includes: a second pneumatic gripper 631 and a third linear drive mechanism 632 that drives the second pneumatic gripper 631 to move. The third linear drive mechanism 632 has a relatively large stroke and can be a synchronous belt type linear module.

[0059] More specifically, because the core board is fixed in a diamond shape on the suction cup panel 21, the length of the roller 621 can be designed to achieve the following effect: after the upper corner of the copper foil is lifted by the first pneumatic gripper module 61, the roller 621 can contact the lifted copper foil. As the copper foil is wound onto the roller 621, a portion of the copper foil extends beyond the end of the roller 621, and the second pneumatic gripper 631 grabs this portion of the copper foil.

[0060] Compared to designing the roller 621 to swing between horizontal and vertical states, the second pneumatic gripper module 63 makes the separation of the copper foil and the roller 621 more stable.

[0061] Please see Figure 1 and Figure 2Furthermore, the second pneumatic gripper module 63's gripper 631 moves between the front tearing position 1B1 and the back tearing position 1B2; the two tearing structures 6 share one second pneumatic gripper module 63.

[0062] The principle of this application is to select a laser of a suitable wavelength that can penetrate the copper foil, but is strongly absorbed by the adhesive layer in the middle.

[0063] Specifically, follow these steps: 1. Energy absorption: The laser is focused on the adhesive layer between the copper foil and the substrate; 2. Adhesive decomposition: After absorbing laser energy, the adhesive rapidly pyrolyzes, vaporizes, or carbonizes, losing its adhesiveness; 3. Separation: The expansion of tiny gases or the failure of the adhesive causes the copper foil to be completely peeled off from the substrate.

[0064] Based on the above process, this application has minimal thermal impact on the copper foil and substrate, and the separation surface is clean, thereby achieving a high-precision patterned peeling effect.

[0065] Therefore, this application has the following beneficial effects: 1. Non-contact and stress-free: Avoids warping, stretching, or damage caused by mechanical peeling; 2. High precision and controllability: It can achieve patterned separation with micron-level linewidth, which can be used for circuit repair or stripping of specific areas; 3. Clean and environmentally friendly: No chemical etching agents are required, and there are no waste liquid disposal issues; 4. High adaptability: It can handle irregularly shaped, flexible or brittle substrates.

Claims

1. A device for tearing open the protective copper foil on both sides of a circuit board core board, characterized in that, include: The equipment frame (1) has a material picking and dispensing area (1A) and a working area (1B) arranged in parallel in the longitudinal direction. The material picking and dispensing area (1A) has a material picking position (1A1) and a material dispensing position (1A2) arranged in parallel in the transverse direction. The working area (1B) has a front tearing position (1B1) and a back tearing position (1B2) arranged in parallel in the transverse direction. The first suction cup panel module (2) and the suction cup panel one (21) are used to fix the core board in a diamond orientation and move between the front tear position (1B1) and the back tear position (1B2). The second suction cup panel module (3), the second suction cup panel (31) is used to fix the core board in a diamond orientation and move between the back tear position (1B2) and the feeding position (1A2); Industrial robot (4) with vacuum suction cup module (4A); material picking trajectory: from the material placement position (1A2) to the suction cup panel one (21) corresponding to the front tearing position (1B1); material placement trajectory: from the suction cup panel two (31) corresponding to the material placement position (1A2) to the material placement position (1A2); Laser module (5), corresponding to the feeding trajectory; used to stimulate the upper corner of the core board of the industrial robot (4) so ​​that the adhesion between the copper foil on both sides and the core board fails; Two tear-off structures (6) are respectively set at the front tear-off position (1B1) and the back tear-off position (1B2).

2. The device for tearing open the protective copper foil on both sides of the circuit board core board according to claim 1, characterized in that, The tearing structure (6) includes: a first pneumatic gripper module (61) and a roller module (62); The first pneumatic gripper module (61) is used to lift the copper foil in one corner above the core plate of the suction cup panel (21); The roller (621) of the roller module (62) moves up and down relative to the equipment frame (1); the roller (621) in the upper limit position is used to fix the copper foil that is lifted by the first pneumatic gripper module (61).

3. The device for tearing open the protective copper foil on both sides of the circuit board core board according to claim 2, characterized in that, The first pneumatic gripper module (61) includes: a first mounting part (612) that moves up and down relative to the equipment frame (1), a linear drive mechanism four (613) that drives the first mounting part (612) to move, a pneumatic gripper one (611) that is hinged to the mounting part about a transverse axis, and a cylinder one (614) that drives the pneumatic gripper one (611) to swing.

4. The device for tearing open the protective copper foil on both sides of the circuit board core board according to claim 2, characterized in that, The tearing structure (6) also includes: a second pneumatic gripper module (63); the second pneumatic gripper module (63) corresponds to the lower limit state of the winding roller (621) and is used to remove the copper foil that has been torn off from the winding roller (621).

5. The device for tearing apart the protective copper foil on both sides of the circuit board core board according to claim 4, characterized in that, The second pneumatic gripper (631) of the second pneumatic gripper module (63) moves between the front tearing position (1B1) and the back tearing position (1B2); the two tearing structures (6) share a second pneumatic gripper module (63).

6. The device for tearing open the protective copper foil on both sides of the circuit board core board according to claim 2, characterized in that the roll... A gear and rack pair (62A) is provided between the roller (621) and the equipment frame (1). The gear and rack pair (62A) is used to convert the up-and-down movement of the roller (621) relative to the equipment frame (1) into the rotation of the roller (621) around its own axis.

7. The device for tearing open the protective copper foil on both sides of the circuit board core board according to claim 2, characterized in that, The roller (621) is hollow, and the roller surface has a gap (621A) that communicates with the inner cavity of the roller (621); a slider (621B) is slidably connected to the inner cavity of the roller (621), and a clamping bar (621C) is fixedly provided on the slider (621B) through the gap (621A); the roller module (62) also includes a cylinder three (621D) for driving the slider (621B) to move.

8. The device for tearing apart the protective copper foil on both sides of the circuit board core board according to claim 1, characterized in that, Both the material taking position (1A1) and the material discharging position (1A2) are equipped with a material box (7), and the four vertical side walls of the material box (7) are slidably and fixedly connected with limit baffles (7A) along the normal direction.

Images