Automatic film tearing machine for mobile phone middle frame

Abstract

The invention discloses an automatic film tearing machine for a middle frame of a mobile phone. Comprising a rack with a workbench, a conveying module detachably connected with the rack and used for conveying a middle frame part, a picking module arranged on the rack and matched with the conveying module in an aligned mode, a positioning module arranged on the workbench and used for fixing the middle frame part, and a film tearing module used for executing film tearing operation on a film covering area of the positioned and fixed middle frame part. The material picking module picks up the middle frame piece to be subjected to film tearing on the conveying module and transfers the middle frame piece to the positioning module to be fixed, a covering film of the middle frame piece is stripped through the film tearing module, after film tearing is completed, the material picking module transfers the middle frame piece subjected to film tearing on the positioning module back to the conveying module, and discharging is completed through the conveying module. Automatic circulation of the whole process of feeding, transferring and positioning, film tearing and discharging of the middle frame piece is achieved, manual intervention for assisting feeding, discharging or residue cleaning is not needed, manpower is saved, and the working efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of mobile phone mid-frame production technology, specifically relating to an automatic film-removing machine for mobile phone mid-frames. Background Technology

[0002] As smartphones rapidly iterate towards thinner, lighter, and higher-performance designs, the phone's mid-frame, as a core component integrating structural support, signal transmission, and aesthetic decoration, faces increasingly stringent requirements for assembly precision and surface quality. In the production and assembly process of the phone's mid-frame, to achieve functions such as structural reinforcement, waterproofing, and cushioning, various auxiliary materials such as foam, adhesive tape, and dustproof mesh are typically applied to pre-defined areas of the mid-frame. During production, transportation, and application, these auxiliary materials are covered with a protective film to prevent scratches, contamination, or adhesive failure. This protective film must be precisely peeled off after the auxiliary materials are applied.

[0003] Currently, the peeling of protective film from the surface of the mid-frame auxiliary materials mainly relies on manual operation or traditional semi-automated equipment. Manual film peeling requires operators to manually fix the mid-frame, position the auxiliary material's film, and peel it off. This method is not only labor-intensive and inefficient, making it difficult to meet the cycle time requirements of large-scale mass production, but also prone to uneven force control and peeling angle deviations, which can easily lead to material displacement, deformation, or damage to the adhesive layer, and even scratches on the mid-frame surface, seriously affecting product assembly quality. The overall automation level of the equipment is low, with a lack of efficient coordination between modules (conveyor, pick-up, positioning, and film peeling). Some processes still require manual intervention to assist with material loading, unloading, or cleaning of film residue, making it difficult to achieve a closed-loop operation throughout the entire process. Summary of the Invention

[0004] To address the technical problems existing in the prior art, the present invention provides an automatic film peeling machine for mobile phone mid-frames.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An automatic film-removing machine for mobile phone mid-frames includes a frame with a worktable, a conveying module detachably connected to the frame for transporting mid-frame components, a picking module mounted on the frame and aligned with the conveying module, a positioning module mounted on the worktable for fixing the mid-frame components, and a film-removing module for performing film-removing operations on the film-coated area of ​​the positioned and fixed mid-frame components. The picking module picks up the mid-frame components to be peeled from the conveying module and transfers them to the positioning module for fixing. The film-removing module peels off the film from the mid-frame components. After film removal, the picking module transfers the peeled mid-frame components from the positioning module back to the conveying module, where the conveying module completes the unloading process.

[0006] Furthermore, the positioning module includes a positioning fixture for fixing the frame of the film to be torn, a first adjustment component connected to the positioning fixture and capable of driving the positioning fixture to reciprocate along the conveying direction of the conveying module, and a second adjustment component connected to the first adjustment component and capable of driving the first adjustment component to reciprocate along the conveying direction perpendicular to the conveying module.

[0007] Furthermore, the positioning fixture includes a base detachably connected to the first adjusting component and having a support platform, clamping blocks symmetrically arranged on both sides of the support platform, and a first driving unit connected to each of the clamping blocks in a one-to-one correspondence; the support platform is used to support the middle frame of the film to be torn, and a material receiving sensor is provided on the support platform; the first driving unit can drive the two clamping blocks to move in a direction of mutual approach to form a clamping and positioning of the middle frame, or to move in a direction of mutual distance to release the middle frame.

[0008] Furthermore, the first adjustment component includes a base plate fixed to the upper end of the second adjustment component, and a first guide rail pair and an adjustment drive mechanism mounted on the base plate; the first guide rail pair extends in a direction consistent with the transmission direction of the conveying module, the positioning fixture slides with the first guide rail pair and is connected to the adjustment drive mechanism, and the adjustment drive mechanism can drive the positioning fixture to reciprocate linearly along the extension direction of the first guide rail pair.

[0009] Furthermore, the second adjustment component includes a second guide rail pair connected to the lower end of the worktable and a second drive unit connected to the upper end of the first adjustment component. The second guide rail pair extends along the transmission direction perpendicular to the conveying module. The first adjustment component slides with the second guide rail pair and is connected to the second drive unit. The second drive unit can drive the first adjustment component to reciprocate linearly along the arrangement direction of the second guide rail pair.

[0010] Furthermore, the material picking module includes a housing mounted on the frame, a first lifting drive mechanism connected to the housing, a first material picking frame connected to the first lifting drive mechanism, a rotary cylinder connected to the lower end of the first material picking frame, and a second material picking frame mounted on the lower end of the rotary cylinder. The first lifting drive mechanism can drive the first material picking frame to move up and down, thereby causing the second material picking frame to move back and forth in the direction of approaching or moving away from the conveying module. The second material picking frame is provided with a plurality of material picking suction cups for adsorbing the middle frame parts. The rotary cylinder can drive the second material picking frame to rotate horizontally.

[0011] Furthermore, the conveying module includes a support frame detachably connected to the frame, a conveyor belt rotatably mounted on the support frame, a third drive unit for driving the conveyor belt to circulate, a material guiding assembly disposed on the conveyor belt and extending along its transmission direction, and a material unloading guide assembly for guiding the middle frame to be unloaded after the film is torn; the workbench has a loading port and a unloading port corresponding to the transmission path of the conveyor belt, and the material guiding assembly is used to form bidirectional lateral limiting and guiding for the middle frame, thereby guiding the middle frame to be torn along the preset transmission path to below the loading port; The material guiding assembly includes two first material guiding strips that are detachably connected to the support frame. The two first material guiding strips are arranged at intervals on both sides of the conveyor belt along the width direction of the conveyor belt, and the two first material guiding strips enclose a feeding channel for limiting and guiding the central frame. The end of the feeding channel away from the support frame is set as an open structure. The material feeding guide assembly includes two second material guiding strips that are detachably connected to the support frame. The two second material guiding strips are arranged at intervals on both sides of the conveyor belt along the width direction of the conveyor belt, and the two second material guiding strips form a material feeding channel. The extension direction of the material feeding channel is consistent with the conveyor belt transmission direction, so as to guide the middle frame piece after the film is to be stably moved to the outside of the support frame along the preset transmission path.

[0012] Furthermore, the material guiding assembly is also connected to a limiting and blocking assembly, which includes a first stop detachably connected to the feeding port, a second stop detachably connected to the worktable and opposite to the first stop, and a side stop assembly capable of entering and exiting the feeding channel along the width direction of the feeding channel; wherein, The first stopper is used to block the middle frame from continuing to be transported in the feeding channel, so that the middle frame stops at the preset picking position; The lower end of the second baffle is provided with a protrusion that can extend into the feeding channel, and the bottom surface of the protrusion is higher than the top surface of the middle frame. The protrusion is used to separate the middle frame currently to be picked up from the adjacent middle frame behind it along the transmission direction. The side guard assembly includes a side guard and a fourth drive unit that is pulsatorically connected to the side guard. One of the first guide strips has a notch for the side guard to enter / exit. The fourth drive unit can drive the side guard to move toward the other first guide strip to clamp and position the middle frame at a preset material picking position; or drive the side guard to move away from the other first guide strip to release the clamping of the middle frame.

[0013] Furthermore, the film-tearing module includes a stand detachably connected to the workbench, a second lifting drive mechanism mounted on the stand, and a film-tearing assembly connected to the second lifting drive mechanism and capable of reciprocating along the height direction of the stand. The film-tearing assembly includes a connecting seat connected to the second lifting drive mechanism, a feeding wheel mounted on the connecting seat, a take-up wheel mounted on one side of the feeding wheel, a fifth drive unit mounted on the connecting seat for driving the take-up wheel to rotate, and a support guide wheel assembly, a peeling execution assembly, and a guide support assembly mounted on the connecting seat. The feeding wheel is fitted with a roll of adhesive peeling medium. The roll of adhesive peeling medium passes sequentially through several support guide wheel assemblies, the peeling execution assembly, and the guide support assembly, finally winding around the take-up wheel. When a film-tearing operation is required, the second lifting drive mechanism drives the connecting seat to move towards the middle frame until the peeling execution assembly contacts the film on the middle frame and completes the film-tearing action. Simultaneously, the fifth drive unit starts synchronously, driving the take-up wheel to rotate, thereby rewinding and recycling the waste medium after the film-tearing operation.

[0014] Furthermore, the peeling execution assembly includes a support base detachably connected to the connecting seat, a sixth drive unit mounted on the support base, a connecting plate located at the output end of the sixth drive unit, paddles symmetrically connected to both sides of the connecting plate, and a media clamping assembly connected to the support base and located between the two paddles; the media clamping assembly includes a media pressing block for contacting the viscous peeling media roll, a pressing block located at the upper end of the media pressing block and detachably connected to the media pressing block, a plurality of guide rods fixedly connected to the upper end of the pressing block in the vertical direction, a plurality of linear bearings fixedly installed on the support base and correspondingly adapted to the guide rods, and a return spring correspondingly sleeved on the outer periphery of each guide rod; the guide rods pass through the inner holes of the corresponding linear bearings and form a sliding fit, and the return springs are elastically supported between the linear bearings and the pressing blocks, for providing a preload force to the media pressing block toward the viscous peeling media roll, and allowing the media pressing block to adaptively rise and fall in the vertical direction as the media is transported or peeled; In the initial state, the bottom surface of the paddle is higher than the bottom surface of the pressure medium block. After the sixth driving unit drives the connecting plate to move the two paddles down, the bottom of the paddle can extend beyond the bottom surface of the pressure medium block.

[0015] In summary, the beneficial effects of this invention are: 1. Full-process automation, with efficiency adapted to mass production. Integrating "conveying + picking + positioning + film peeling" modules, the entire process of loading, positioning, film peeling, and unloading of the mid-frame components is automated without manual intervention. The automated cycle time far exceeds that of manual labor, solving the bottleneck of "high labor intensity and low efficiency" in manual film peeling. It can meet the high-efficiency production needs of large-scale mass production, while avoiding the problem of module breakage in traditional semi-automated equipment. 2. Precise control, ensuring product quality. The picking module avoids scratches on the mid-frame surface caused by manual handling through short-path transfer and suction cup adsorption. The positioning module achieves precise positioning of the film-coated area using two-dimensional adjustment components. Combined with the mechanized actions of the film peeling module (paddle assistance + medium adsorption), standardized control of the peeling angle and force solves the problems of material displacement, deformation, and adhesive layer damage caused by uneven force and angle deviation in manual operation. It also avoids film residue residue and reduces rework. 3. Flexible adaptation, reducing changeover costs. The conveying module is detachable, and the recessed mounting position in the frame can accommodate different production line equipment; the material guiding components (first guide strip / second guide strip) are detachable and adjustable to adapt to different specifications of frame parts; the positioning module does not require frequent fixture changes and can adapt to the film-coating positioning needs of multiple sizes of frame parts through two-dimensional adjustment; the film-peeling module can be replaced with different adhesive media to adapt to various film peeling processes, significantly reducing equipment changeover time and costs. IV. Reduced reliance on manual labor and control of overall costs. Fully automated operation reduces manual input and lowers labor costs; standardized operation avoids product scrap caused by human error, improving yield; waste media is automatically collected by the receiving wheel, eliminating the need for manual waste cleaning; convenient equipment maintenance (core modules can be replaced with wear parts without disassembly), further reducing overall production costs. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of an automatic film-removing machine for mobile phone mid-frames provided by the present invention. Figure 1 .

[0017] Figure 2 This is a structural schematic diagram of an automatic film-removing machine for mobile phone mid-frames provided by the present invention. Figure 2 .

[0018] Figure 3 This is a schematic diagram of the conveying module in this invention.

[0019] Figure 4 yes Figure 3 A magnified view of part A in the middle.

[0020] Figure 5 This is a schematic diagram of the structure of the conveying module and the upper / lower loading port in this invention.

[0021] Figure 6 yes Figure 5 Side view.

[0022] Figure 7 yes Figure 5 The conveyor module limiter has a structural diagram of the product.

[0023] Figure 8 This is a schematic diagram of the material picking module in this invention.

[0024] Figure 9 yes Figure 8 The diagram shows the structure of the material picking module that adsorbs the product.

[0025] Figure 10 This is a schematic diagram of the positioning module in this invention.

[0026] Figure 11 yes Figure 10 The diagram shows the structure of the product.

[0027] Figure 12 This is a schematic diagram of the structure of the film-peeling module in this invention. Figure 1 .

[0028] Figure 13 yes Figure 12 A schematic diagram of the structure of the film-tearing die assembly with the adhesive peeling medium roll material.

[0029] Figure 14 This is a schematic diagram of the structure of the film-peeling module in this invention. Figure 2 .

[0030] Figure 15 This is a three-dimensional structural diagram of the stripping execution component in this invention.

[0031] In the diagram, 100 is the frame, 110 is the worktable, 120 is the loading port, 130 is the unloading port, 140 is the touch screen, and 150 is the recessed mounting position. 200-Conveying module, 210-Support frame, 220-Conveyor belt, 230-Third drive unit, 240-First guide strip, 250-Second guide strip, 260-Limiting and blocking assembly, 261-First stop, 262-Second stop, 262A-Plate, 262B-Connector, 263-Side stop assembly, 263A-Side stop, 263A0-Allowing groove, 263B-Fourth drive unit; 300-Pickup module, 310-Outer shell, 320-First lifting drive unit, 330-First pickup rack, 340-Rotary cylinder, 350-Second pickup rack, 351-Pickup suction cup; 400-Positioning module, 410-Positioning fixture, 411-Base, 4110-Support, 4111-Incoming material sensor, 412-Clamping block, 413-First drive unit, 420-First adjustment component, 421-Base plate, 422-First guide rail pair, 423-Adjustment drive mechanism, 4231-Adjustment motor, 4232-Drive wheel, 4233-Driven wheel, 4234-Belt, 430-Second adjustment component, 431-Second guide rail pair, 432-Second drive unit; 500-Tearing film module, 510-Upright frame, 520-Second lifting drive mechanism, 530-Tearing film assembly, 531-Connecting seat, 532-Feeding wheel, 533-Receiving wheel, 534-Fifth drive unit, 535-Support guide wheel group, 535A-First support wheel, 535B-Second support wheel, 535C-Third support wheel, 535D-Fourth support wheel, 536-Peeling execution assembly, 5361-Support seat, 5362-Sixth drive unit, 5363-Connecting plate, 5364-Pulley, 5365-Media pressing assembly, 5365A-Pressure media block, 5365B-Pressure block, 5365C-Guide rod, 5365D-Linear bearing, 537-Guide support assembly, 537A-Rotating wheel, 537B-Pressure wheel; 600 - Mid-frame component, 610 - Coated area; 700 - Adhesive peelable media roll. Detailed Implementation

[0032] The invention will be further illustrated below with reference to specific figures.

[0033] Please see Figure 1 and Figure 2This invention provides an automatic film-removing machine for mobile phone mid-frames, comprising a frame 100 having a worktable 110, a conveying module 200 detachably connected to the frame 100 for conveying mid-frame components 600, a picking module 300 disposed on the frame 100 and aligned with the conveying module 200 for loading and unloading materials, a positioning module 400 disposed on the worktable 110 for fixing the mid-frame components 600, and a positioning module 400 for positioning and fixing the mid-frame components 600. In the film-coating area 610, the film-tearing module 500 performs the film-tearing operation. The picking module 300 picks up the middle frame component 600 to be peeled from the conveying module 200 and transfers it to the positioning module 400 for fixation. The film-tearing module 500 peels off the film from the middle frame component 600. After the film is peeled off, the picking module 300 transfers the peeled middle frame component 600 from the positioning module 400 back to the conveying module 200, where the conveying module 200 completes the unloading. By integrating the "conveyor module 200 + picking module 300 + positioning module 400 + film-tearing module 500" into one device, the entire process of the middle frame component 600 from loading → transfer and positioning → film peeling → unloading is fully automated, without the need for manual intervention to assist in loading, unloading, or residue cleaning. This solves the problems of low coordination efficiency and process breaks in traditional semi-automated equipment. The automated operation cycle time far exceeds that of manual operation, matching the high-efficiency production needs of large-scale mass production and solving the capacity bottleneck of "high labor intensity and low efficiency" in manual film peeling. The cooperation between the material picking module 300, conveying module 200, and positioning module 400 ensures the smooth transfer of the middle frame 600 between processes, avoiding the risk of surface scratches caused by manual handling and ensuring product appearance quality. The positioning module 400 precisely fixes the middle frame 600, ensuring the positioning accuracy of the film coating area 610. Combined with the mechanized film peeling action of the film peeling module 500, it achieves standardized control of peeling angle and force, solving problems such as material displacement, deformation, and adhesive layer damage caused by uneven force and peeling angle deviations in manual operation. This reduces reliance on manual labor, lowers labor costs and product scrap rates due to human error, and avoids secondary rework caused by film residue, improving overall production efficiency.

[0034] The frame 100 is equipped with a touch screen 140 for human-machine interaction, and the frame 100 has a recessed mounting position 150 corresponding to the installation position of the conveyor module 200. The conveyor module 200 is detachably assembled in the recessed mounting position 150. When the actual production needs change, the conveyor module 200 in the recessed mounting position 150 can be disassembled and removed, so that the recessed mounting position 150 can be adapted to accommodate other production line equipment (such as conveyor mechanisms of different specifications, auxiliary machines, production lines, etc.), which is flexible and practical.

[0035] Please see Figure 3The conveying module 200 includes a support frame 210 screwed to a recessed mounting position 150 of the frame 100, a conveyor belt 220 rotatably mounted on the support frame 210, a third drive unit 230 for driving the conveyor belt 220 in a cyclic conveying manner, a material guiding assembly disposed on the conveyor belt 220 and extending along its conveying direction, and a material unloading guide assembly for guiding the middle frame 600 to exit after the film is torn. The third drive unit 230 is preferably a motor. (See also...) Figure 5 , Figure 6 and Figure 7 The workbench 110 has a loading port 120 and a unloading port 130 corresponding to the transmission path of the conveyor belt 220. The guiding component is used to provide bidirectional lateral restraint and guidance for the middle frame 600, thereby guiding the middle frame 600 of the film to be peeled to move along the preset transmission path to below the loading port 120. The guiding component extends along the transmission direction of the conveyor belt 220 and provides bidirectional lateral restraint for the middle frame 600, which can limit the left and right deviation and tilting of the middle frame 600 during transmission, ensuring that the middle frame 600 of the film to be peeled is accurately moved along the preset transmission path to below the loading port 120 of the workbench 110, providing the prerequisite for the accurate picking up of the material by the subsequent picking module 300. This avoids problems such as the picking module 300 failing to pick up the material or the middle frame being damaged by collision due to the deviation of the middle frame transmission position, ensuring the smooth connection of the "conveying → picking up → positioning" process and supporting the fully automated closed-loop operation of the whole machine.

[0036] The material guiding assembly includes two first material guiding strips 240 screwed to the support frame 210. The two first material guiding strips 240 are spaced apart on both sides of the conveyor belt 220 along its width direction, and the two first material guiding strips 240 enclose a feeding channel for limiting and guiding the middle frame 600. The first material guiding strips 240 are detachable, and the spacing between the two first material guiding strips 240 can be quickly replaced or adjusted according to the width and shape of the middle frame of different mobile phone models (or a suitable guiding strip can be directly replaced), so that the feeding channel can adapt to the limiting and guiding requirements of various specifications of middle frame 600. The end of the feeding channel away from the support frame 210 is set as an open structure. The open structure expands the entrance range of the middle frame 600 into the channel, which facilitates the quick and smooth entry of the middle frame 600 to be peeled (such as when it flows from the previous process to the conveyor belt 220) into the feeding channel, avoiding material jamming and blockage caused by a narrow entrance.

[0037] Please continue reading. Figure 4The material guiding assembly is also connected to a limit blocking assembly 260. The limit blocking assembly 260 includes a first stop 261 that is screwed to the feed port 120 but has a gap between its bottom surface and the conveyor belt 220, a second stop 262 that is screwed to the worktable 110 and is opposite to the first stop 261, and a side stop assembly 263 that can enter and exit the feed channel along the width direction of the feed channel. The first stop 261 is used to block the middle frame 600 from continuing to be transported in the feeding channel, so that the middle frame 600 stops at the preset picking position. The first stop 261 is screwed to the feeding port 120 and the bottom surface maintains a gap with the conveyor belt 220. It can not only block the middle frame 600 from continuing to be transported and force it to stop at the preset picking position, but also avoid friction and wear or transmission jamming caused by direct contact with the conveyor belt 220. The side baffle assembly 263 and the first guide strip 240 cooperate to clamp the middle frame 600. The first stop 261 (front and rear stop) + side baffle assembly 263 (left and right clamping) + conveyor belt 220 (bottom support) form a three-way positioning system, so that the middle frame 600 is completely fixed at the picking position, solving the core pain point of "inaccurate stopping and skewed posture" in traditional transmission, and providing a stable and reliable positioning basis for the automated picking and placing action of the picking module 300.

[0038] Please see Figure 4 The side stop assembly 263 includes a side stop 263A and a fourth drive unit 263B that is pulsatorically connected to the side stop 263A. One of the first guide strips 240 has a notch for the side stop 263A to enter / exit. The fourth drive unit 263B is preferably a cylinder. The fourth drive unit 263B can drive the side stop 263A to move towards the other first guide strip 240 to clamp and position the middle frame 600 at a preset material pickup position; or drive the side stop 263A to move away from the other first guide strip 240 to release the clamping force on the middle frame 600. The cylinder-driven clamping force is uniform and controllable, preventing inertial swaying of the middle frame 600 due to insufficient clamping force, or surface damage and deformation due to excessive clamping force. This ensures that the position and posture of the middle frame 600 are completely fixed during material pickup, providing a core guarantee for the accurate picking and placing of the material pickup module 300. The side stop assembly 263 can achieve automated switching between "clamping and releasing" through the fourth drive unit 263B: when the picking module 300 approaches, the cylinder drives the side stop 263A to extend and clamp the middle frame 600; after picking up the material, the cylinder drives the side stop 263A to retract and release, allowing the middle frame 600 to enter the picking position. No manual intervention is required to control clamping and releasing, solving the problems of "lagging action and poor coordination with other modules" in traditional lateral positioning structures, ensuring smooth process connections and improving mass production efficiency. In addition, to adapt to the production of middle frame 600 with protruding outer walls, the clamping surface of the side stop 263A is provided with several avoidance grooves 263A0 to avoid the protrusion.

[0039] The second stop component 262 includes a plate 262A and a connector 262B. The second stop component 262 is screwed to the lower end face of the workbench 110 via the plate 262A. The two connectors 262B are symmetrically assembled at the lower end of the plate 262A. The protruding part formed by its protruding part extends into the feeding channel, and the bottom surface of the protruding part is higher than the top surface of the middle frame component 600. This design achieves both physical isolation between the current middle frame component 600 to be picked up and the adjacent middle frame component 600 behind it along the transmission direction, and does not interfere with the normal transmission of the middle frame component 600 in the channel (avoiding scratching the top surface of the middle frame component 600). Considering that the material pickup module 300 preferably adopts a suction cup design, if accidental suction occurs during material pickup (such as excessive suction force or suction position deviation), it may cause the adjacent middle frame component 600 behind it to rise simultaneously. The protrusion of the connector 262B is always partially located within the feeding channel, and its lower surface can vertically limit the rear middle frame component 600, preventing it from being lifted along with it. The height and position design of the protrusion does not affect the up-and-down picking and placing actions of the material pickup module 300, while maintaining separation and protection of the rear middle frame component 600 throughout the material pickup process. By stably separating the front and rear materials, displacement of the middle frame component 600 to be picked up due to rear impact is avoided, further ensuring its consistent posture at the preset material pickup position.

[0040] The material feeding guide assembly includes two second guide strips 250 screwed to the support frame 210. The two second guide strips 250 are spaced apart on both sides of the conveyor belt 220 along its width, forming a feeding channel between them. The feeding channel extends in the same direction as the conveyor belt 220, guiding the mid-frame component 600 after film removal along a preset transmission path to the outside of the support frame 210. The second guide strips 250 are fixed to the support frame 210 by screwing. By loosening the bolts and adjusting the spacing between the two guide strips, the assembly can accommodate mid-frame components 600 of different widths, ensuring a close match between the feeding channel width and the shape of the mid-frame component 600. The outlet of the feeding channel can directly connect to subsequent process equipment (such as a testing station, storage box, or the next process conveyor line), achieving continuous flow from film removal to feeding to subsequent processing. This eliminates the need for manual intervention, strengthens the fully automated closed-loop process, and improves production efficiency.

[0041] Please see Figure 8 and Figure 9The material picking module 300 includes a housing 310 screwed onto the frame 100, a first lifting drive mechanism connected to the housing 310, a first picking rack 330 connected to the first lifting drive mechanism, a rotary cylinder 340 connected to the lower end of the first picking rack 330, and a second picking rack 350 installed at the lower end of the rotary cylinder 340. The first lifting drive mechanism is a lightweight and efficient transmission structure of "belt 4234-wheel drive". The first lifting drive unit 320 is a power output source (preferably a stepper motor or servo motor), which is fixedly mounted on the side of the housing 310. The output shaft is coaxially connected to the drive wheel 4232. The drive wheel 4232 and the driven wheel 4233 are arranged vertically at intervals inside the housing 310. The axis lines of the two wheels are parallel and perpendicular to the transmission direction of the conveyor belt 220. The driven wheel 4233 is rotatably connected to the inner wall of the housing 310 through a rotating shaft to form a stable transmission support. The transmission belt 4234 is wound between the drive wheel 4232 and the driven wheel 4233. The first lifting drive mechanism can drive the first picking rack 330 to move up and down, thereby causing the second picking rack 350 to move back and forth towards or away from the conveying module 200. The second picking rack 350 is equipped with several picking suction cups 351 for adsorbing the middle frame parts 600. The rotary cylinder 340 can drive the second picking rack 350 to rotate horizontally. When there is a difference in the orientation of the middle frame parts 600 from the conveying module 200 (such as some batches of middle frame parts 600 having different orientations due to previous processes), there is no need to manually adjust the incoming material direction. The rotary cylinder 340 can automatically rotate the second picking rack 350 according to the preset program, so that the picking suction cups 351 always adsorb the middle frame parts 600 in the correct posture, ensuring the normal connection of subsequent positioning and film peeling processes. The entire picking process is automatically controlled, without the need for manual intervention to adjust the position, direction or assist in picking and placing, which can effectively avoid subjective errors of manual operation (such as uneven picking force, misjudgment of direction), and reduce the scrap rate of middle frame parts 600 caused by human error. At the same time, reducing reliance on manual labor means saving on labor costs.

[0042] Two material picking modules 300 are spaced apart on the frame 100, one for loading and the other for unloading, with a film-tearing module 500 positioned between them. The film-tearing module 500 is located between the two material picking modules 300. After the loading module picks up material from the conveying module 200, it only needs to transfer the middle frame component 600 a short distance to the positioning module 400 (the working area of ​​the film-tearing module 500). After film tearing, the unloading module picks up material from the positioning module 400 and returns it to the conveying module 200, again without requiring a long distance. This short-path transfer reduces the risk of posture deviation of the middle frame component 600 during transfer, avoiding problems such as loosening of fixation and collisions caused by long-distance movement.

[0043] The positioning module 400 includes a positioning fixture 410 for fixing the frame member 600 of the film to be torn, a first adjustment component 420 connected to the positioning fixture 410 and capable of driving the positioning fixture 410 to reciprocate and adjust along the conveying direction of the conveying module 200, and a second adjustment component 430 connected to the first adjustment component 420 and capable of driving the first adjustment component 420 to reciprocate and adjust along a direction perpendicular to the conveying direction of the conveying module 200. The positioning fixture 410 serves as a direct fixing carrier for the frame member 600, providing a stable fixing foundation. First Adjustment Component 420 (Adjustable along Conveying Direction): The first adjustment component 420 drives the positioning fixture 410 to reciprocate along the conveying direction of the conveying module 200. This can specifically address the positional deviation problem of the middle frame 600 during conveying and transfer. At this time, the first adjustment component 420 can adjust the position of the positioning fixture 410 to align the film-coating area 610 of the middle frame 600 with the working path of the film-tearing module 500, avoiding partial film residue or scratches on the surface of the middle frame due to alignment deviation. In addition, this adjustment function can also adapt to middle frame 600s of different lengths. By adjusting the fixed range of the positioning fixture 410 along the conveying direction, it can ensure that the film-coating area 610 of both long and short middle frame 600s is within the effective working range of the film-tearing module 500. Second adjustment component 430 (vertical conveying direction adjustment): The second adjustment component 430 drives the first adjustment component 420 and the positioning fixture 410 to move along the direction perpendicular to the conveying direction. It can quickly calibrate the position of the fixture and ensure that the film covering area 610 of the middle frame 600 is always in the central working area of ​​the film tearing module 500. This front and rear adjustment capability allows the positioning module 400 to adapt to multiple specifications of middle frame 600 without frequent fixture replacement, which greatly reduces the cost and time of equipment changeover and solves the limitation of the traditional fixed fixture of "one type, one fixture".

[0044] Please see Figure 10 and Figure 11 The positioning fixture 410 includes a base 411 screwed to the first adjusting assembly 420 and having a platform 4110, clamping blocks 412 symmetrically arranged on both sides of the platform 4110, and a first drive unit 413 connected to each clamping block 412 in a corresponding manner. The platform 4110 is used to support the middle frame 600 of the film to be peeled, and a material receiving sensor 4111 is provided on the platform 4110. The first drive unit 413 is preferably a cylinder, which can drive the two clamping blocks 412 to move in a direction of approaching each other to clamp and position the middle frame 600, or to move in a direction of moving away from each other to release the middle frame 600. The symmetrical clamping method can make the force on both sides of the middle frame 600 even, avoiding the displacement and deformation of the middle frame 600 caused by clamping on one side (especially for the middle frame of thin and light mobile phones).

[0045] The first adjustment assembly 420 includes a base plate 421 fixed to the upper end of the second adjustment assembly 430, and a first guide rail pair 422 and an adjustment drive mechanism 423 mounted on the base plate 421. The first guide rail pair 422 extends in a direction consistent with the transmission direction of the conveying module 200. The positioning fixture 410 is slidably engaged with the first guide rail pair 422 and is drively connected to the adjustment drive mechanism 423. The adjustment drive mechanism 423 can drive the positioning fixture 410 to reciprocate linearly along the extension direction of the first guide rail pair 422. The adjustment drive mechanism 423 has a "belt 4234-wheel drive" structure. The adjustment drive mechanism 423 includes an adjustment motor 4231 as a power source, a drive wheel 4232, a driven wheel 4233, and a transmission belt 4234. The adjusting motor 4231 is connected to the base plate 421, and the output shaft of the adjusting motor 4231 is connected to the driving wheel 4232. The driven wheel 4233 is rotatably mounted on the other end of the base plate 421 through a bearing seat. The belt 4234 is wound between the driving wheel 4232 and the driven wheel 4233. The belt 4234-wheel drive provides smooth power transmission without rigid impact, which can avoid vibration of the positioning fixture 410 during the adjustment process and prevent the already supported mid-frame component 600 from shifting. It is especially suitable for the precise positioning requirements of the mid-frame of thin and light mobile phones.

[0046] The second adjustment component 430 includes a second guide rail pair 431 connected to the lower worktable 110 and an upper part connected to the first adjustment component 420, and a second drive unit 432. The second drive unit 432 can adopt a motor + motor screw drive structure. The second guide rail pair 431 extends along the transmission direction perpendicular to the conveying module 200. The first adjustment component 420 is slidably engaged with the second guide rail pair 431 and is drively connected to the second drive unit 432. The second drive unit 432 can drive the first adjustment component 420 to reciprocate linearly along the arrangement direction of the second guide rail pair 431. The first adjustment component 420 is adjusted along the conveying direction, and the second adjustment component 430 is adjusted along the vertical conveying direction. The two are rigidly connected through the base plate 421 to form a two-dimensional adjustment system of "X-axis (conveying direction) + Y-axis (vertical conveying direction)". When the middle frame 600 has an offset in the corresponding direction, the first adjustment component 420 and the second adjustment component 430 can complete the two-dimensional calibration of the positioning fixture 410 to ensure that the film-coating area 610 of the middle frame 600 is aligned with the film-tearing module 500, thus solving the problem of not being able to take into account multi-dimensional deviations and further improving the positioning accuracy and film-tearing quality.

[0047] Please see Figure 12 , Figure 13 and Figure 14The film-tearing module 500 includes a stand 510 screwed to the worktable 110, a second lifting drive mechanism 520 mounted on the stand 510, and a film-tearing assembly connected to the second lifting mechanism and capable of reciprocating along the height direction of the stand 510. The second lifting drive mechanism 520 may adopt a motor + lead screw structure. The film-tearing assembly includes a connecting seat 531 connected to the second lifting drive mechanism 520, a feeding wheel 532 mounted on the connecting seat, a receiving wheel 533 mounted on one side of the feeding wheel 532, a fifth drive unit 534 mounted on the connecting seat 531 for driving the receiving wheel 533 to rotate, a support guide wheel assembly 535 mounted on the connecting seat 531, a peeling execution assembly 536, and a guide support assembly 537. The feed roller 532 is equipped with a roll of adhesive peeling media 700. The roll of adhesive peeling media 700 passes sequentially through the support guide roller group 535, the peeling execution component 536, and the guide support component 537 before finally winding onto the take-up roller 533. When a film-tearing operation is required, the second lifting drive mechanism 520 drives the connecting seat to move towards the middle frame 600 until the peeling execution component 536 contacts the film on the middle frame 600 and completes the film-tearing action. At the same time, the fifth drive unit 534 is preferably a motor. The fifth drive unit 534 is rotatably connected to the take-up roller 533, driving the take-up roller 533 to rotate, thereby rewinding and recycling the waste media after the film-tearing operation. The feed roller 532 stores the roll of adhesive peeling media 700, and the take-up roller 533 rotates synchronously under the drive of the fifth drive unit 534, which can automatically complete the cycle of "media release (feed roller 532) → film-tearing operation → waste media recycling (take-up roller 533)". It eliminates the need for frequent manual media replacement or waste cleaning, significantly reducing manual intervention and enabling precise matching of the film-tearing operation rhythm with the overall machine automation rhythm (such as material picking and positioning rhythm). This shortens the film-tearing time per piece, adapts to the needs of large-scale mass production, and solves the problems of "low efficiency and easy production interruption" associated with traditional manual material changing.

[0048] The support guide wheel assembly 535 and the guide support assembly 537 are arranged along the medium transmission path, which can provide multi-point support and guidance for the viscous peeling medium, avoid the medium from shifting or wrinkling during transmission or film tearing, and ensure that the medium always adheres to the peeling execution assembly 536 and the film in a flat posture.

[0049] Please continue reading. Figure 12The support guide wheel assembly 535 includes a first support wheel 535A and a second support wheel 535B distributed adjacent to the feed wheel 532, a third support wheel 535C located in the middle of the hijacking transmission path, and a fourth support wheel 535D distributed adjacent to the take-up wheel 533. The viscous peeling medium roll 700 drawn from the feed wheel 532 winds around the outer periphery of the first support wheel 535A, enters between the first support wheel 535A and the second support wheel 535B, passes the outer periphery of the peeling execution component 536, winds around the outer periphery of the third support wheel 535C, then passes the guide support component 537, contacts the outer periphery of the fourth support wheel 535D, and finally reaches the take-up wheel 533. The winding path (outer periphery of the first support wheel 535A → between the first and second support wheels 535B → outer periphery of the peeling execution component 536 → outer periphery of the third support wheel 535C → guide support component 537 → outer periphery of the fourth support wheel 535D → take-up wheel 533) can provide stable and uniform tension to the medium through the positional arrangement of each wheel. On the one hand, appropriate tension allows the adhesive peeling medium roll 700 (preferably tape) to adhere tightly to the working surface of the peeling execution component 536, ensuring full contact with the film body of the middle frame 600 and avoiding poor adhesion and incomplete film peeling due to medium relaxation. On the other hand, uniform tension prevents the medium from breaking due to excessive local force or wrinkling due to insufficient tension during transmission or film peeling, ensuring that the medium state is consistent in each film peeling action, thereby ensuring the stability of film peeling quality. The guide support component 537 includes a rotating wheel 537A that can be driven to rotate by the fifth drive unit 534, and a pressure roller 537B disposed on one side of the rotating wheel 537A. The adhesive peeling medium roll 700 led out from the third support wheel 535C enters between the rotating wheel 537A and the pressure roller 537B. The rotating wheel 537A is synchronously driven by the fifth drive unit 534, and can actively convey the medium towards the take-up wheel 533, forming a dual power of "active pushing + take-up traction". This avoids the tension fluctuation problem of passive transmission and ensures that the medium maintains a uniform and appropriate tension throughout the process, providing a stable medium state for the subsequent film tearing action. If the rotating wheel 537A is missing, the transmission path of the medium from the third support wheel 535C to the take-up wheel 533 is longer. When the take-up wheel 533 stops, the medium in the suspended section is prone to sag and loosen due to its own gravity. When the take-up is restarted, the loose medium will form "stacked entanglement" on the take-up wheel 533, which will prevent the take-up wheel 533 from recycling evenly. Manual sorting is required when cleaning up the waste roll later, which affects the operation efficiency. The clamping structure of the rotating wheel 537A and the pressure wheel 537B can stop the conveying of the medium synchronously when the receiving wheel 533 stops, and the clamping force can fix the medium in the suspended section between the rotating wheel 537A and the pressure wheel 537B to prevent the medium from sagging or loosening. When restarting, the rotating wheel 537A and the receiving wheel 533 move synchronously, and the medium can directly enter the receiving wheel 533 in a flat posture, ensuring neat collection without manual handling, which greatly improves the automation and efficiency of waste recycling.The active drive of the rotating wheel 537A can share the transmission resistance of the take-up wheel 533, so that the take-up wheel 533 only needs to provide the power for "recovery winding" without having to overcome the transmission resistance of the long path. This significantly reduces the load on the shaft and motor of the take-up wheel 533, extends its service life, and reduces the frequency and cost of equipment maintenance.

[0050] Please see Figure 15The stripping execution assembly 536 includes a support base 5361 screwed to the connecting seat, a sixth drive unit 5362 mounted on the support base 5361, a connecting plate 5363 located at the output end of the sixth drive unit 5362, paddles 5364 symmetrically connected to both sides of the connecting plate 5363, and a media clamping assembly 5365 connected to the support base 5361 and located between the two paddles 5364. The media clamping assembly 5365 includes a media clamping block 5365A for contacting the adhesive peelable media roll 700, a clamping block 5365B located on the upper end of the media clamping block 5365A and screwable to the media clamping block 5365A, a plurality of guide rods 5365C fixedly connected to the upper end of the clamping block 5365B in a vertical direction, a plurality of linear bearings 5365D fixedly installed on the support base 5361 and adapted to each guide rod 5365C, and a return spring (not shown in the figure) corresponding to each guide rod 5365C and sleeved on the outer periphery of each guide rod 5365C. The guide rod 5365C passes through the inner hole of the corresponding linear bearing 5365D and forms a sliding fit. The return spring is elastically supported between the linear bearing 5365D and the pressure block 5365B, and is used to provide a preload force to the pressure medium block 5365A toward the viscous peeling medium roll 700, and allows the pressure medium block 5365A to adaptively rise and fall in the vertical direction as the medium is transported or peeled. In the initial state, the bottom surface of the paddle 5364 is higher than the bottom surface of the pressure medium block 5365A. The sixth drive unit 5362 is preferably a cylinder. After the sixth drive unit 5362 drives the connecting plate 5363 to move the two paddles 5364 downward, the bottom of the paddle 5364 can exceed the bottom surface of the pressure medium block 5365A. During film peeling, after the positioning module 400 completes positioning, the second lifting drive mechanism 520 is activated, driving the film peeling assembly (including the peeling execution assembly 536) to descend along the height direction of the stand 510 until the viscous peeling medium below the pressure medium block 5365A makes slight contact with the upper surface of the film body of the middle frame 600. At the same time, the fifth drive unit 534 is activated, driving the rotating wheel 537A and the receiving wheel 533 to rotate synchronously, and the medium begins to be transported towards the receiving wheel 533 at a stable speed. Under the pre-tightening force of the reset spring, the pressure medium block 5365A adaptively adheres to the surface of the medium and the film body as the assembly descends, avoiding local suspension of the medium due to minor protrusions on the surface of the middle frame 600, ensuring full contact between the medium and the film body, and preparing for subsequent peeling. The sixth drive unit 5362 is activated, driving the connecting plate 5363 and the two side paddles 5364 to move vertically downward; at the same time, under the pre-tightening force of the pressure medium block 5365A, the viscous medium tightly adheres to the edge of the lifted membrane, and the membrane is completely peeled off from left to right (or along the preset direction) as the medium is transmitted.

[0051] The sixth drive unit 5362 drives the paddle 5364 to move vertically downwards. The bottom surface first breaks through the initial gap between the lower surface of the medium and the paddle 5364, then gradually exceeds the bottom surface of the pressing medium block 5365A, finally contacting the upper surface of the membrane edge of the middle frame 600. At this time, the mechanical thrust of the paddle 5364 acts directly on the membrane edge, while the medium, because it is pressed by the pressing medium block 5365A, does not move downwards synchronously with the paddle 5364, forming a relative motion of "paddle 5364 pushing the membrane, medium remaining stationary." The paddle 5364 continues to move downwards, further expanding the separation range between the membrane and the middle frame 600 (the separation length extends from the edge to the center); simultaneously, the fifth drive unit 534 drives the receiving wheel 533 to rotate, causing the medium to be transported outwards at a stable speed. At this point, the medium is in a "dynamic motion state": on the one hand, it is pulled outward by the receiving wheel 533, and on the other hand, it is pressed by the pre-tightening force of the medium block 5365A to ensure close contact with the membrane. The membrane is simultaneously subjected to two forces: one is the continuous pushing force of the pry bar 5364 (maintaining the separation state between the membrane and the middle frame 600), and the other is the viscous pulling force of the medium (moving outward with the medium transmission). The two forces work together (both outward), causing the membrane to change from "partial lifting" to "continuous peeling", avoiding membrane breakage due to uneven force. If the medium viscosity is low, its own viscosity alone cannot lift the high-viscosity membrane; however, the mechanical pushing force of the pry bar 5364 can break the initial viscosity, enabling effective peeling of low-viscosity media, thus expanding the equipment's adaptability to different media-membrane combinations. If slight slippage occurs during media transfer (e.g., insufficient friction of the take-up roller 533), the continuous pushing force of the pry bar 5364 can maintain the peeling state of the membrane, preventing the membrane from re-attaching to the frame 600 due to media slippage, and ensuring that the peeling process is uninterrupted. The pry bar 5364 only acts on the edge of the membrane and does not come into contact with other auxiliary materials (such as adhesive strips) on the frame 600, preventing damage to the auxiliary materials.

[0052] The two paddles 5364 are arranged in a V-shape (i.e., the distance between the lower ends of the two paddles 5364 is narrow and the distance between the upper ends is wide). The V-shape structure causes the bottom surface of the paddles 5364 to naturally generate a "converging inward" force after it contacts the membrane when it moves downward. This force can lift the middle part of the membrane upward and quickly form a separation shape of "protruding in the middle and naturally opening on both sides". Combined with the adsorption and pulling force of the medium from both sides to the middle, a peeling path "from the inside to the outside" is achieved, avoiding the membrane breakage caused by excessive adhesion in the middle and greatly reducing the scrap rate of thick film peeling. After the V-shaped lever 5364 lifts the middle of the membrane, the membrane takes on an "arch bridge" shape (the middle part is raised and the two side edges are raised upward). At this time, the adhesion pressure between the edge and the middle frame is greatly reduced. The edge, which originally required a large pushing force to lift, naturally separates from the middle frame 600 auxiliary material due to the "tension" generated by the central protrusion. This is equivalent to "pre-loosening" the edge peeling. The subsequent medium only needs a small adhesive pulling force to easily adsorb and peel off the edge membrane, avoiding the breakage caused by the edge being too tightly adhered to the middle frame when applying force to the edge in a conventional way.

[0053] The working process of this film-peeling machine is as follows: The middle frame piece 600 to be peeled flows from the process into the conveyor belt 220 of the conveying module 200, and is laterally limited in both directions by the guiding component (the feeding channel enclosed by two first guiding side strips 240), and is moved along the preset transmission path. When the middle frame piece 600 approaches the feeding port 120 of the worktable 110, the limiting and blocking component 260 is activated; the first blocking component 261 blocks the middle frame piece 600 from continuing to be transmitted, so that it stops at the preset picking position; the fourth drive unit 263B drives the side blocking component 263A to extend out from the notch of the first guiding side strip 240, and cooperates with the other side guiding side strip to clamp the middle frame piece 600. At the same time, the protruding part of the second blocking component 262 isolates the current middle frame piece 600 from the adjacent middle frame piece 600 behind, preventing the middle frame piece 600 behind from being accidentally picked up.

[0054] The material picking module 300 (the picking module 300 near the feeding port 120) is activated. During material picking: the first lifting drive mechanism drives the first picking rack 330 and the second picking rack 350 to descend until the picking suction cup 351 contacts the upper surface of the middle frame 600, and the suction cup generates negative pressure to adsorb the middle frame 600. If there is a deviation in the incoming direction of the middle frame 600 (such as reversed orientation), the rotary cylinder 340 drives the second picking rack 350 to rotate horizontally to adjust the middle frame 600 to the correct posture. The first lifting drive mechanism drives the middle frame 600 to rise, and then moves it to directly above the positioning fixture 410 of the positioning module 400, and descends again to place the middle frame 600 on the surface of the support 4110 of the positioning fixture 410.

[0055] Positioning fixture 410 clamps and fixes the middle frame 600: After the material sensor 4111 of the support platform 4110 detects that the middle frame 600 has arrived, it sends a signal to the control system. The first drive unit 413 drives the two clamping blocks 412 to move in a direction that approaches each other, forming a symmetrical clamping and positioning of the middle frame 600, completing the initial fixation of the middle frame 600. The first adjustment component 420 drives the positioning fixture 410 to move along the transmission direction of the conveying module 200, compensating for the front and back offset of the middle frame 600 during the transfer process, ensuring that the film-coating area 610 of the middle frame 600 is aligned with the working path of the film-tearing module 500. The second adjustment component 430 drives the first adjustment component 420 and the positioning fixture 410 to move along the vertical conveying direction, calibrating the left and right position of the middle frame 600, so that the film-coating area 610 is in the center working range of the film-tearing module 500. After positioning is completed, the positioning fixture 410 remains in the clamping state.

[0056] Film-peeling stage: The second lifting drive mechanism 520 of the film-peeling module 500 is activated, driving the film-peeling assembly (connecting seat, feeding roller 532, receiving roller 533, peeling execution assembly 536, etc.) to descend along the height direction of the stand 510 until the viscous peeling medium below the pressure medium block 5365A makes slight contact with the upper surface of the film body of the middle frame 600. At this time, the pressure medium block 5365A adaptively adheres to the medium and the film body under the pre-tightening force of the return spring, preventing the medium from being suspended. The fifth drive unit 534 is activated, simultaneously driving the receiving roller 533 and the rotating wheel 537A of the guide support assembly 537 through synchronous belt / gear transmission: the rotating wheel 537A, in conjunction with the pressure roller 537B, clamps the medium and transmits it towards the receiving roller 533, while the receiving roller 533 rotates synchronously to prepare for the recycling of waste medium. The sixth drive unit 5362 drives the connecting plate 5363 and the two side levers 5364 to move vertically downwards. The bottom surface of the levers 5364 first breaks through the initial gap between the medium and the levers 5364, then extends beyond the bottom surface of the pressure medium block 5365A, contacts the edge of the membrane of the middle frame 600 and applies mechanical thrust, breaking the initial adhesion between the membrane and the middle frame 600, lifting the edge of the membrane to form a separation gap. The viscous medium adsorbs the lifted edge of the membrane and moves outwards with the medium transmission. At the same time, the levers 5364 continue to move downwards to expand the separation range, so that the membrane changes from "partial lifting" to "continuous peeling". When the peeling length of the membrane reaches half or one-third of the total length of the middle frame 600, the levers 5364 move upwards and reset under the action of the sixth drive unit 5362, and the remaining membrane is peeled off by the medium alone. The waste medium (adsorbed membrane) that has completed the tearing is guided by the fourth support wheel 535D and is evenly wound and recycled by the receiving wheel 533 to avoid waste scattering. The film-tearing assembly rises to a high position under the action of the second lifting drive mechanism 520, waiting for the next film-tearing command.

[0057] This film-peeling machine offers: 1. Fully automated process, efficiency adapted for mass production. It integrates "conveying + picking + positioning + film peeling" modules, achieving fully automated flow of the entire process of loading, positioning, film peeling, and unloading the 600-inch mid-frame component, requiring no manual intervention. The automated cycle time far exceeds that of manual peeling, solving the bottleneck of "high labor intensity and low efficiency," and matching the high-efficiency production needs of large-scale mass production. It also avoids the problem of module failure in traditional semi-automated equipment. 2. Precise control, ensuring product quality. The picking module 300 uses short-path transfer and suction cup adsorption to avoid scratches on the mid-frame surface caused by manual handling. The positioning module 400 uses two-dimensional adjustment components to achieve precise positioning of the coating area 610. Combined with the mechanized actions of the film-peeling module 500 (assisted by the 5364 paddles + media adsorption), standardized control of the peeling angle and force solves the problems of uneven force and angle deviation caused by manual operation, leading to material displacement, deformation, and damage to the adhesive layer. It also avoids coating residue residue, reducing rework. 3. Flexible adaptation, reducing changeover costs. The conveyor module 200 is detachable, and the recessed mounting position 150 of the frame 100 can accommodate different production line equipment; the material guiding components (first material guiding strip 240 / second material guiding strip 250) are detachable and adjustable to adapt to different specifications of the middle frame 600; the positioning module 400 eliminates the need for frequent fixture changes and can adapt to the film-coating positioning requirements of multiple sizes of middle frames through two-dimensional adjustment; the film-peeling module 500 can be replaced with different viscous media to adapt to various film peeling processes, significantly reducing equipment changeover time and costs. IV. Reduced reliance on manual labor and control of overall costs. Fully automated operation reduces manual input and lowers labor costs; standardized operation avoids product scrap caused by human error, improving yield; waste media is automatically recycled by the receiving wheel 533, eliminating the need for manual waste cleaning; convenient equipment maintenance (core modules can be replaced with wear parts without disassembly), further reducing overall production costs.

[0058] The above are merely embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structures made using the contents of the present invention specification and drawings, whether directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of the present invention.

Claims

1. An automatic film-removing machine for mobile phone mid-frames, characterized in that: The system includes a frame with a worktable, a conveying module detachably connected to the frame for transporting mid-frame components, a picking module mounted on the frame and aligned with the conveying module, a positioning module mounted on the worktable for fixing the mid-frame components, and a film-peeling module for performing a film-peeling operation on the film-coated area of ​​the positioned and fixed mid-frame components. The picking module picks up the mid-frame components to be peeled from the conveying module and transfers them to the positioning module for fixing. The film-peeling module peels off the film from the mid-frame components. After the film peeling is completed, the picking module transfers the film-peeled mid-frame components from the positioning module back to the conveying module, where the conveying module completes the unloading process.

2. The automatic film-removing machine for mobile phone mid-frames according to claim 1, characterized in that: The positioning module includes a positioning fixture for fixing the frame of the film to be torn, a first adjustment component connected to the positioning fixture and capable of driving the positioning fixture to reciprocate along the transmission direction of the conveying module, and a second adjustment component connected to the first adjustment component and capable of driving the first adjustment component to reciprocate along the transmission direction perpendicular to the conveying module.

3. The automatic film-removing machine for mobile phone mid-frames according to claim 2, characterized in that: The positioning fixture includes a base detachably connected to the first adjustment component and having a support platform, clamping blocks symmetrically arranged on both sides of the support platform, and a first drive unit connected to each clamping block in a one-to-one correspondence; the support platform is used to support the middle frame of the film to be torn, and a material receiving sensor is provided on the support platform; the first drive unit can drive the two clamping blocks to move in a direction of mutual approach to clamp and position the middle frame, or move in a direction of mutual distance to release the middle frame.

4. The automatic film-removing machine for mobile phone mid-frames according to claim 2, characterized in that: The first adjustment component includes a base plate fixed to the upper end of the second adjustment component, and a first guide rail pair and an adjustment drive mechanism mounted on the base plate; the first guide rail pair extends in a direction consistent with the transmission direction of the conveying module, the positioning fixture slides with the first guide rail pair and is connected to the adjustment drive mechanism, and the adjustment drive mechanism can drive the positioning fixture to reciprocate linearly along the extension direction of the first guide rail pair.

5. The automatic film-removing machine for mobile phone mid-frames according to claim 2, characterized in that: The second adjustment component includes a second guide rail pair connected to the worktable at the lower end and a second drive unit connected to the first adjustment component at the upper end. The second guide rail pair extends along the transmission direction perpendicular to the conveying module. The first adjustment component slides with the second guide rail pair and is connected to the second drive unit in a transmission manner. The second drive unit can drive the first adjustment component to reciprocate linearly along the arrangement direction of the second guide rail pair.

6. The automatic film-removing machine for mobile phone mid-frames according to claim 1, characterized in that: The material picking module includes a housing mounted on the frame, a first lifting drive mechanism connected to the housing, a first material picking frame connected to the first lifting drive mechanism, a rotary cylinder connected to the lower end of the first material picking frame, and a second material picking frame mounted on the lower end of the rotary cylinder. The first lifting drive mechanism can drive the first material picking frame to move up and down, thereby driving the second material picking frame to move back and forth in the direction of approaching or moving away from the conveying module. The second material picking frame is provided with a plurality of material picking suction cups for adsorbing the middle frame parts. The rotary cylinder can drive the second material picking frame to rotate horizontally.

7. The automatic film-removing machine for mobile phone mid-frames according to claim 1, characterized in that: The conveying module includes a support frame detachably connected to the frame, a conveyor belt rotatably mounted on the support frame, a third drive unit for driving the conveyor belt to circulate, a material guiding assembly disposed on the conveyor belt and extending along its transmission direction, and a material unloading guide assembly for guiding the middle frame to be unloaded after the film is torn. The workbench has a loading port and a unloading port corresponding to the transmission path of the conveyor belt. The material guiding assembly is used to form a bidirectional lateral limit and guide for the middle frame, thereby guiding the middle frame to be torn along the preset transmission path to the area below the loading port. The material guiding assembly includes two first material guiding strips that are detachably connected to the support frame. The two first material guiding strips are arranged at intervals on both sides of the conveyor belt along the width direction of the conveyor belt, and the two first material guiding strips enclose a feeding channel for limiting and guiding the central frame. The end of the feeding channel away from the support frame is set as an open structure. The material feeding guide assembly includes two second material guiding strips that are detachably connected to the support frame. The two second material guiding strips are arranged at intervals on both sides of the conveyor belt along the width direction of the conveyor belt, and the two second material guiding strips form a material feeding channel. The extension direction of the material feeding channel is consistent with the conveyor belt transmission direction, so as to guide the middle frame piece after the film is to be stably moved to the outside of the support frame along the preset transmission path.

8. The automatic film peeling machine for mobile phone mid-frames according to claim 7, characterized in that: The material guiding assembly is also connected to a limiting and blocking assembly, which includes a first stop detachably connected to the feeding port, a second stop detachably connected to the worktable and opposite to the first stop, and a side stop assembly capable of entering and exiting the feeding channel along its width. The first stopper is used to block the middle frame from continuing to be transported in the feeding channel, so that the middle frame stops at the preset picking position; The lower end of the second baffle is provided with a protrusion that can extend into the feeding channel, and the bottom surface of the protrusion is higher than the top surface of the middle frame. The protrusion is used to separate the middle frame currently to be picked up from the adjacent middle frame behind it along the transmission direction. The side guard assembly includes a side guard and a fourth drive unit that is pulsatorically connected to the side guard. One of the first guide strips has a notch for the side guard to enter / exit. The fourth drive unit can drive the side guard to move toward the other first guide strip to clamp and position the middle frame at a preset material picking position; or drive the side guard to move away from the other first guide strip to release the clamping of the middle frame.

9. The automatic film-removing machine for mobile phone mid-frames according to any one of claims 1-8, characterized in that: The film-tearing module includes a stand detachably connected to the workbench, a second lifting drive mechanism mounted on the stand, and a film-tearing assembly connected to the second lifting drive mechanism and capable of reciprocating along the height direction of the stand. The film-tearing assembly includes a connecting seat connected to the second lifting drive mechanism, a feeding wheel mounted on the connecting seat, a take-up wheel mounted on one side of the feeding wheel, a fifth drive unit mounted on the connecting seat for driving the take-up wheel to rotate, and a support guide wheel assembly, a peeling execution assembly, and a guide support assembly mounted on the connecting seat. Adhesive peeling media rolls are mounted on the feeding wheel. The adhesive peeling media rolls sequentially pass through several support guide wheel assemblies, the peeling execution assembly, and the guide support assembly before finally winding onto the take-up wheel. When a film-tearing operation is required, the second lifting drive mechanism drives the connecting seat to move towards the middle frame until the peeling execution assembly contacts the film on the middle frame and completes the film-tearing action. Simultaneously, the fifth drive unit starts synchronously, driving the take-up wheel to rotate, thereby rewinding and recycling the waste media after the film-tearing operation.

10. The automatic film peeling machine for mobile phone mid-frames according to claim 9, characterized in that: The peeling execution assembly includes a support base detachably connected to the connecting seat, a sixth drive unit mounted on the support base, a connecting plate located at the output end of the sixth drive unit, paddles symmetrically connected to both sides of the connecting plate, and a media clamping assembly connected to the support base and located between the two paddles. The media clamping assembly includes a media pressing block for contacting the viscous peeling media roll, a pressing block located at the upper end of the media pressing block and detachably connected to the media pressing block, a plurality of guide rods fixedly connected to the upper end of the pressing block in the vertical direction, a plurality of linear bearings fixedly installed on the support base and correspondingly adapted to the guide rods, and a return spring correspondingly sleeved on the outer periphery of each guide rod. The guide rods pass through the inner holes of the corresponding linear bearings and form a sliding fit. The return springs are elastically supported between the linear bearings and the pressing blocks, providing a preload force to the media pressing block toward the viscous peeling media roll, and allowing the media pressing block to adaptively rise and fall in the vertical direction as the media is transported or peeled. In the initial state, the bottom surface of the paddle is higher than the bottom surface of the pressure medium block. After the sixth driving unit drives the connecting plate to move the two paddles down, the bottom of the paddle can extend beyond the bottom surface of the pressure medium block.

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