Backside film peeling machine

Abstract

The application discloses a back film tearing machine, which comprises a rack, a conveying mechanism arranged on the rack and used for conveying products and a film tearing device used for tearing the film on the back of the products, and is characterized in that the film tearing device comprises a first film tearing mechanism used for tearing more than half of the film on the back of the products and a second film tearing mechanism used for tearing the film still adhered to the back of the products completely, the second film tearing mechanism is provided with a pair of film tearing clamps, the pair of film tearing clamps are located above the gravity center of the whole film at the position of clamping the film tearing part, and the film is allowed to fall freely through the gap between the pair of film tearing clamps by relying on the gravity of the film after the whole film is torn completely. The whole film tearing process is an automatic process, the film tearing efficiency is high, and the needs of modern industrial production can be met.

Description

Technical Field

[0001] This invention relates to the field of semiconductor manufacturing technology, and more specifically to a back-side film peeling machine. Background Technology

[0002] Semi-finished boards (such as chip substrates) are covered with a protective film on their surface (one side or both sides). During production, this film needs to be removed for further processing. Existing film-removing machines have two grippers, one at the top and one at the bottom, to remove the film from the top and bottom of the board respectively. However, when removing smaller boards, after the lower gripper completely tears the film off the board, the film, due to its small size and light weight, cannot fall accurately into the film collection bin under its own weight. Instead, it may get caught on the lower gripper or fall onto other parts of the equipment due to gravity, creating a potential hazard. Summary of the Invention

[0003] The purpose of this invention is to provide a back-side film peeling machine that can directly peel off the film on the back of a product and ensure that the peeled film does not get caught on the film peeling device and can fall freely.

[0004] The objective of this invention can be achieved through the following technical solutions:

[0005] A back-side film-peeling machine includes a frame, a conveying mechanism mounted on the frame for conveying products, and a film-peeling device for peeling the film off the back of the product. The film-peeling device includes a first film-peeling mechanism that first peels off more than half of the film on the back of the product, and a second film-peeling mechanism that completely peels off the film still adhered to the back of the product. The second film-peeling mechanism has a pair of film-peeling jaws. The position where the pair of film-peeling jaws clamps the peeled portion of the film is above the center of gravity of the entire film. After the entire film is completely peeled off, the jaws are released, allowing the film to fall freely through the gap between the pair of film-peeling jaws under its own weight.

[0006] By adopting the above technical solution, a second film-tearing mechanism is added to the film-tearing device. When the film-lifting claw of the first film-tearing mechanism tears more than half of the film on the back of the product, a pair of film-tearing claws of the second film-tearing mechanism extend from the side to clamp the torn part of the film. Subsequently, the film-tearing claws move backward, and during the backward movement of the film-tearing claws, the remaining part of the film is torn off from the product. Because the position where the film is clamped by the pair of film-tearing claws is above the center of gravity of the entire film, it can be ensured that after the entire film is completely torn off, the film falls freely under its own gravity after being released.

[0007] As a further aspect of the present invention, the pair of film-tearing claws enter from the side to clamp the film-tearing portion. Using this technical solution, the pair of film-tearing claws will not interfere with the first film-tearing mechanism.

[0008] As a further aspect of the present invention: the first film-tearing mechanism includes a film-lifting gripper, a film-lifting and lowering assembly for driving the film-lifting gripper to rise and fall, a film-lifting lateral movement assembly for driving the film-lifting gripper to move laterally, and a swing drive assembly for driving the film-lifting gripper to swing at an angle.

[0009] As a further aspect of the present invention, the second film-tearing mechanism further includes a film-tearing longitudinal translation component for driving the film-tearing gripper to move longitudinally and a film-tearing transverse translation component for driving the film-tearing gripper to move laterally.

[0010] As a further aspect of the invention, a film recycling bin is provided below the film-tearing termination position of the film-tearing claw. This film recycling bin collects the film torn from the product.

[0011] As a further aspect of the present invention: the conveying mechanism is divided into a first conveying section and a second conveying section, wherein the first conveying section includes two symmetrical rail supports mounted on the frame and a pair of rails respectively mounted on the inner sides of the two rail supports.

[0012] As a further aspect of the present invention, it also includes a fixing mechanism for fixing the product when the product is completely transferred to the first transfer section. The fixing mechanism includes opposing pressure block cylinders disposed on the outer surfaces of the two rail supports, a support block driven by the pressure block cylinders, and a plurality of small pressure blocks disposed on the bottom surface of the support block and cooperating with the rail to press down the edge of the product.

[0013] As a further aspect of the present invention: each of the support blocks is further provided with a movable plate on its surface, and each movable plate has a downwardly extending positioning pin on its inner edge, which is adapted to the positioning hole on the product to accurately position the product.

[0014] As a further aspect of the present invention, the rail support is also provided with a sensor for detecting whether there is a gap between the moving plate and the support block.

[0015] As a further aspect of the present invention: the first conveying section is provided with a camera for detecting whether there is residual film on the back of the product, the camera being located below the rail and in front of the fixing mechanism.

[0016] In summary, the entire film-tearing process of the back-side film-tearing machine is automated, with high film-tearing efficiency, which can meet the needs of modern industrial production. Attached Figure Description

[0017] The invention will now be further described with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the back-side film-peeling machine of the present invention;

[0019] Figure 2for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0021] Figure 4 This is a schematic diagram of the structure of the first transmission segment of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the first film-tearing mechanism of the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of the second film-tearing mechanism of the present invention;

[0024] Figure 7 This is a schematic diagram of the film-tearing starting position of the present invention;

[0025] Figure 8 This is a schematic diagram of the film-peeling process of the present invention;

[0026] Figure 9 The clamp is shown to be located at the front end of the film;

[0027] Figure 10 The portion of the film being clamped by the clamp is shown;

[0028] Figure 11 This shows the clamp holding the film and rotating it clockwise by 30°;

[0029] Figure 12 The image shows the clamping nozzle gripping the film as it descends and moves backward until the film is torn from the product to 3 / 5 of its length.

[0030] Figure 13 This illustrates another angle at which the clamping nozzle grips the film and descends and moves backward in sync until the film is torn from the product to 3 / 5 of its length.

[0031] Figure 14 A pair of tearing jaws are shown gripping a 3 / 5 portion of the torn film;

[0032] Figure 15 This shows another angle at which a pair of tearing jaws grip the 3 / 5 portion of the film that has been torn;

[0033] Figure 16 This shows the clamp releasing the film and returning;

[0034] Figure 17 A pair of film-tearing jaws are shown moving backward and tearing off the remaining 2 / 5 of the film from the product during the backward movement. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Please see Figure 1 As shown, the present invention is a back-side film-peeling machine, including a frame 10, a feeding mechanism 20 disposed on the frame 10, and a conveying mechanism 12 for conveying products. The conveying mechanism 12 is divided into a first conveying section 30 and a second conveying section 60. The first conveying section 30 is further provided with a fixing mechanism 40 for clamping the left and right edges of the product and a film-peeling device 50 for peeling off the film on the back of the product along its conveying path.

[0037] Combination Figure 2 As shown, the feeding mechanism 20 includes a feeding frame 21, an upper conveyor belt 22, a lower conveyor belt 23, a clamping and lifting assembly 24, a clamping mechanism 25, and a push rod mechanism 261.

[0038] The upper conveyor belt 22 and the lower conveyor belt 23 are respectively installed on the upper and lower parts of the loading frame 21. The outlet position of the upper conveyor belt 22 and the inlet position of the lower conveyor belt 23 are in the same vertical direction. The clamping lifting assembly 24 is located in front of the outlet position of the upper conveyor belt 22. The clamping lifting assembly 24 is connected to the clamping mechanism 25 and can drive the clamping mechanism 25 to move up and down. The push rod mechanism 261 includes a push rod lateral movement assembly 26 and a push rod 27 driven by the push rod lateral movement assembly 26. The push rod lateral movement assembly 26 is fixed to the frame 10 by a push rod bracket 262 and is located on the side of the clamping lifting assembly 24 away from the first conveying section 30. The push rod lateral movement assembly 26 is connected to the push rod 27 and drives the push rod 27 to move forward and backward. In this embodiment, both the clamping lifting assembly 24 and the push rod lateral movement assembly 26 are configured as linear modules driven by servo motors.

[0039] In this way, the upper conveyor belt 22 transports the product-filled carrier box 9 to the exit position of the upper conveyor belt 22, and the clamping lifting assembly 24 drives the clamping mechanism 25 to move to the exit position of the upper conveyor belt 22. After the clamping mechanism 25 clamps the carrier box 9, the clamping lifting assembly 24 drives the clamping mechanism 25 to lift the carrier box 9 to the feed port of the first conveying section 30. In this embodiment, the carrier box 9 has a rectangular structure with openings at both ends. The two inner side walls of the carrier box 9 are provided with a pair of mutually cooperating slots, and the carrier box 9 has several pairs of slots along the height direction. The product enters the first conveying section 30 under the push of the push rod 27. Then, the clamping lifting assembly 24 will drive the clamping mechanism 25 to rise, thereby adjusting the height of the carrier box 9, so that the push rod 27 can push out the products in the slots of different heights in sequence. After all products in the carrier box 9 are pushed out, the clamping and lifting assembly 24 drives the clamping mechanism 25 to descend with the empty carrier box 9, so that the empty carrier box 9 is located at the inlet position of the lower conveyor belt 23. Then the clamping mechanism 25 places the empty carrier box 9 on the lower conveyor belt 23, and the lower conveyor belt 23 starts to transport the empty carrier box 9 away.

[0040] Combination Figure 3 As shown, the first conveying section 30 receives the products output by the feeding mechanism 20 and conveys them to the next process. The first conveying section 30 includes two symmetrically arranged rail supports 31 mounted on the frame 10, rails 32 symmetrically arranged on the inner sides of the two rail supports 31, a lever traversing assembly 34 mounted on the outer side of one rail support 31 via a support base 33, and a lever 35 driven by the lever traversing assembly 34. In this embodiment, the lever traversing assembly 34 is a linear module driven by a servo motor. When the product is located on the two rails 32, the lever traversing assembly 34 drives the lever 35 to push the product along the rails 32. Using a servo motor-driven linear module ensures accurate product positioning.

[0041] Combination Figure 4 As shown, the fixing mechanism 40 includes a pressing cylinder 41 disposed opposite to each other on the outer side of the two rail brackets 31, a support block 42 driven by the pressing cylinder 41, and a plurality of small pressing blocks 43 disposed on the bottom edge of the support block 42 and cooperating with the rail 32 to press the edge of the product.

[0042] A movable plate 44 is placed on the surface of the support block 42. Guide posts 45 extending downwards are provided on both sides of the bottom surface of the movable plate 44. Guide sleeves 46 are provided on the support block 42 at positions corresponding to the guide posts 45, and these sleeves fit over the corresponding guide posts 45, allowing the movable plate 44 to move up and down along the guide sleeves 46. A positioning pin 47 extending downwards is provided on the inner edge of the bottom surface of each movable plate 44. This positioning pin 47 is adapted to the positioning hole on the product for precise positioning of the product. Additionally, a sensor (not shown in the figure) is provided on one of the support rail brackets 31. When the product is conveyed to the fixing mechanism 40, if the product is positioned accurately, the positioning pin 47 will insert into the product's positioning hole, causing the movable plate 44 to adhere to the surface of the support block 42. There is no gap between the movable plate 44 and the support block 42, and the sensor will not detect any gap and will not alarm. If the product is not positioned accurately in the fixing mechanism, the positioning pin 47 cannot insert into the product's positioning hole, resulting in a gap between the movable plate 44 and the support block 42. In this case, the sensor will detect the gap and trigger an alarm.

[0043] Below the fixing mechanism 40 is a support wheel mechanism (not shown in the figure) for supporting the product. The support wheel mechanism consists of a support wheel traversing assembly (not shown in the figure) and a support wheel group (not shown in the figure) driven by the support wheel traversing assembly. Initially, because a protective film 8 is still attached to the back of the product, the support wheel group can directly contact the product. However, during the film removal process, the support wheel group driven by the support wheel traversing assembly moves backward, thereby preventing the support wheel group from interfering with the film removal device and affecting the film removal action. In this embodiment, the support wheel traversing assembly is a linear module driven by a servo motor.

[0044] like Figure 7 and Figure 8 As shown, the film-tearing device 50 is located below the first conveying section 30. This film-tearing device 50 includes a first film-tearing mechanism 51 for peeling more than half of the film on the back of the product from the product, and a second film-tearing mechanism 52 for completely peeling off the remaining film adhered to the back of the product. It should be noted that the product has a rectangular structure, and the film 8 adhered to the back of the product has a protruding portion extending forward beyond the product by approximately 2 mm. This allows the first film-tearing mechanism 51 to clamp the protruding portion of the film 8 during film removal, thereby holding the film 8 in place before proceeding to the next film-tearing action.

[0045] Combination Figure 5 As shown, the first film-tearing mechanism 51 includes a film-lifting lateral movement assembly 531, a film-lifting lifting assembly 532 fixed to the output end of the film-lifting lateral movement assembly 531, a swing drive assembly 533 fixed to the output end of the film-lifting lifting assembly 532, and a film-lifting gripper 54 fixed to the swing drive assembly 533. In this embodiment, both the film-lifting lateral movement assembly 531 and the film-lifting lifting assembly 532 are linear modules driven by servo motors. The swing drive assembly 533 is a servo motor.

[0046] The film-lifting gripper 54 consists of a gripper bracket 541 fixed on the swing drive assembly 533, a gripper cylinder 542 provided on the gripper bracket 541, and a gripper 543 that can be opened and closed up and down driven by the gripper cylinder 542.

[0047] Combination Figure 6 As shown, the second film-tearing mechanism 52 includes a film-tearing lateral movement assembly 521, a moving platform 522 driven by the film-tearing lateral movement assembly 521, a film-tearing longitudinal movement assembly 523 disposed on the moving platform, a slide 5241 driven by the film-tearing longitudinal movement assembly 523, a gripper cylinder 5242 disposed on the surface of the slide 5241, and a pair of opening and closing film-tearing grippers 5243 (i.e., the first gripper head 5243a and the second gripper head 5243b) driven by the gripper cylinder 5242. In this embodiment, the film-tearing lateral movement assembly 52 adopts a linear module driven by a servo motor.

[0048] The film-tearing longitudinal movement assembly 523 consists of a motor 5231, two pulleys 5232, and a timing belt 5233. The motor 5231 is mounted on a moving platform 522 via a motor bracket. A connecting block 5234 is located on the surface of the moving platform 522 near the motor 5231. The two pulleys 5232 are fixed to both ends of the outer side of the connecting block 5234. The timing belt 5233 is fitted onto the two pulleys 5232. The motor 5231 is connected to one of the pulleys 5232 via a rotating shaft. A slide block 5241 is secured to the timing belt 5233.

[0049] The surface of the mobile platform 522 is provided with a pair of slide rails 55. The slide rails 55 are provided with sliding feet 551. The slide block 5241 is fixed on the sliding feet 551, so that the slide block 5241 can move along the slide rails 55.

[0050] like Figure 9 As shown, when tearing the film, initially, the clamp 543 is horizontally positioned in front of product 7. Then, as... Figure 10 As shown, the film-lifting transverse assembly 531, the film-lifting lifting assembly 532, the swing drive assembly 533, and the clamping cylinder 542 cooperate to drive the clamping nozzle 543 to clamp the excess portion of the film 8 on the product 7. Then, as... Figure 11 As shown, the swing drive assembly 533 drives the clamp 543 to rotate clockwise by approximately 30°. Figure 12 and Figure 13As shown, the clamping nozzle 543 then descends and retracts under the combined drive of the film-lifting lateral movement assembly 531 and the film-lifting lifting assembly 532 until it tears approximately 3 / 5 of the film 8 from the product. During the tearing process, the clamping nozzle 543 first rotates 30° clockwise. This is because if the film 8 is torn off directly, the clamping nozzle 543 would hit the front end of the product during the tearing process, potentially damaging it. Therefore, when tearing the film off the back of the product 7, the clamping nozzle 543 needs to grip the film 8 and rotate it 30° clockwise before simultaneously descending and retracting.

[0051] like Figure 14 and Figure 15 As shown, after the film 8 is torn about 3 / 5 from the product 7, a pair of tearing claws 5243 waiting on one side of the film enter from the side of the film under the drive of the tearing longitudinal movement assembly 523. Then, the pair of tearing claws 5243 clamp the torn portion of the film 8, and the position where the tearing claws 5243 clamp the film is above the center of gravity of the entire film 8. Figure 16 As shown, the clamp 543 then releases the excess portion of the film 8 and is driven back by the cooperation of the film lifting lateral movement assembly 531 and the film lifting lifting assembly 532. Figure 17 As shown, the film-tearing lateral movement assembly 521 then drives the pair of film-tearing grippers 5243 to move backward until they are above the film recycling bin 6, and during the backward movement of the pair of film-tearing grippers 5243, the remaining 2 / 5 of the film 8 is torn off from the product. Afterward, the gripper cylinder 5242 drives the film-tearing grippers 5243 to release, and the film 8 falls freely into the film recycling bin through the gap between the pair of film-tearing grippers 5243 under its own gravity.

[0052] It should be noted that if only a single first film-tearing mechanism 51 is used to tear the film off the back of the product 7, during the process of the clamp 543 of the first film-tearing mechanism 51 clamping the film 8 and tearing it downwards, the entire torn portion of the film 8 is located above the clamp 543. Thus, after the clamp 543 completely tears off the film 8 and releases it, because the overall center of gravity of the torn film is located above the clamp, the film 8 is prone to getting caught on the clamp 543 or other devices below the first conveyor section during its free fall, and cannot fall correctly into the film recycling bin 6, thus creating a potential hazard. Here, the first tearing mechanism 51 and the second tearing mechanism 52 work together to tear the film. After the first tearing mechanism 51 tears the film 8 about 3 / 5, the second tearing mechanism 52 can clamp the film above the center of gravity. In this way, when the second tearing mechanism 52 tears off the remaining 2 / 5 of the film 8 and releases it, the film 8 can only fall into the film recycling bin under the action of gravity through the gap between the released tearing claws 5243.

[0053] like Figure 1As shown, the first conveyor section 30 is equipped with a camera 14 for detecting whether there is residual film on the back of the product. The camera 14 is located below the rail 32 and in front of the fixing mechanism 40.

[0054] The second conveyor section 60 includes two conveyor belt supports 61 mounted on the frame and conveyor belts 62 symmetrically mounted on the inner sides of the two conveyor belt supports 61.

[0055] A rejection mechanism 70 for rejecting defective products is provided on one side of the second conveyor section 60. The rejection mechanism 70 includes a rejection frame 71 mounted on the frame 10, a suction cup longitudinal movement assembly 72 fixed on the rejection frame 71, a suction cup lifting assembly 73 mounted on the output end of the suction cup longitudinal movement assembly 72, and a suction cup 74 driven by the suction cup lifting assembly 73. In this embodiment, both the suction cup longitudinal movement assembly 72 and the suction cup lifting assembly 73 are linear modules driven by servo motors. When the camera 14 detects a defective product, the suction cup longitudinal movement assembly 72 and the suction cup lifting assembly 73 cooperate to drive the suction cup 74 to move above the product and hold it in place. Afterwards, the suction cup longitudinal movement assembly 72 and the suction cup lifting assembly 73 cooperate to drive the suction cup 74 back to its original position for processing by production personnel.

[0056] The exit position of the second conveyor section 60 is also provided with a storage mechanism 80. The storage mechanism 80 is used to store qualified products output from the second conveyor section 60. This structure is prior art and has been disclosed in Chinese Patent 202210104278.8, so it will not be described in detail here.

[0057] During operation, the feeding mechanism 20 sequentially conveys products to the first conveyor section 30. The lever lateral movement assembly 34 drives the lever 35 to push the product along the support rail 32 to the fixed mechanism 40, at which point the lever lateral movement assembly 34 stops. Two pressure block cylinders 41 drive the support blocks 42 to descend, bringing with them corresponding small pressure blocks 43. These small pressure blocks 43 cooperate with the corresponding support rails 32 to press down approximately 2mm from the left and right edges of the product. Simultaneously, the positioning pins 47 on the bottom edge of each moving plate 44 insert into the corresponding pin holes of the product. If a positioning pin 47 cannot be inserted into its corresponding hole, it indicates that the product is incorrectly positioned, triggering a sensor alarm, and production personnel must handle the situation.

[0058] The product is positioned correctly; proceed to the next process. The film-lifting transverse assembly 531, film-lifting lifting assembly 532, and clamping cylinder 542 work together to drive the clamping nozzle 543 to grip the excess film on the product. The servo motor then starts, rotating the clamping nozzle 543 clockwise by approximately 30°. The film-lifting transverse assembly 531 retracts, and the film-lifting lifting assembly 532 descends synchronously, tearing approximately 3 / 5 of the film 8 from the product. The film-tearing gripper 5243, waiting on one side of the film, enters from the side of the film under the drive of the film-tearing longitudinal assembly 523. Then, the gripper cylinder 5242 drives the film-tearing gripper 5243 to clamp the 3 / 5 portion of the film 8 that has been torn off. The gripper 5243 clamps the film above the center of gravity of the entire film 8. Afterward, the clamping nozzle 543 releases the excess film 8 and returns to its original position, awaiting the next task. The film-tearing lateral movement assembly 521 drives the pair of film-tearing claws 5243 to move backward to above the film recycling bin. During the backward movement of the film-tearing claws 5243, the remaining 2 / 5 of the film 8 is torn off from the product 7. When the film-tearing claws 5243 move backward to above the film recycling bin, the claw cylinder 5242 drives the film-tearing claws 5243 to release the film 8. The film 8 falls accurately into the film recycling bin due to its own gravity. At the same time, the film-tearing lateral movement assembly 521 and the film-tearing longitudinal movement assembly 523 cooperate to drive the pair of film-tearing claws 5243 to return, waiting for the next task to be triggered.

[0059] After the product's film is removed, the two pressure block cylinders 41 drive the support block 42 to rise, along with the corresponding small pressure block 43, releasing the product. The lever lateral movement assembly 34 then activates, driving the lever 35 to push the product along the guide rail 32 to the second conveyor section 60. As the product passes the camera 14, the camera scans the back of the product, filtering out defective products. When the product enters the conveying path of the second conveyor section 60, if it is defective, the suction cup longitudinal movement assembly 72 and the suction cup lifting assembly 73 work together to drive the suction cup 74 to move above the product and hold it in place. Then, the suction cup longitudinal movement assembly 72 and the suction cup lifting assembly 73 work together to drive the suction cup 74 back to its original position, where it is processed by production personnel. If the product is qualified, it is conveyed to the storage mechanism 80 through the conveying path of the second conveyor section 60.

[0060] In summary, the entire film-peeling process of this invention is automated, with high efficiency, and can meet the needs of modern industrial production.

[0061] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A back-side film peeling machine, comprising a frame, a conveying mechanism for conveying products mounted on the frame, and a film peeling device for peeling the film from the back of the product, wherein the film adhered to the back of the product has a forward-extending portion, characterized in that: The film-tearing device includes a first film-tearing mechanism that first tears off more than half of the film on the back of the product, and a second film-tearing mechanism that completely tears off the film still stuck to the back of the product. The first film-tearing mechanism has a jaw that clamps the excess portion and tears the film downwards. The second film-tearing mechanism has a pair of film-tearing claws. The position where the pair of film-tearing claws clamps the torn portion of the film is above the center of gravity of the entire film. After the entire film is completely torn off, the claws are released so that the film falls freely through the gap between the pair of film-tearing claws under its own weight.

2. The back-side film peeling machine according to claim 1, characterized in that: The tear-off grippers enter from the side and clamp the torn portion of the film.

3. The back-side film peeling machine according to claim 1, characterized in that: The first film-tearing mechanism includes a film-lifting gripper, a film-lifting and lowering assembly for driving the film-lifting gripper to rise and fall, a film-lifting and lateral moving assembly for driving the film-lifting gripper to move laterally, and a swinging drive assembly for driving the film-lifting gripper to swing at an angle.

4. The back-side film peeling machine according to claim 2, characterized in that: The second film-tearing mechanism further includes a film-tearing longitudinal translation component that drives the film-tearing jaws to move longitudinally and a film-tearing transverse translation component that drives the film-tearing jaws to move laterally.

5. The back-side film peeling machine according to claim 2, characterized in that: A film recycling bin is also provided below the film-tearing termination position of the film-tearing claw.

6. The back-side film peeling machine according to claim 1, characterized in that: The conveying mechanism is divided into a first conveying section and a second conveying section. The first conveying section includes two symmetrical rail supports mounted on the frame and a pair of rails mounted on the inner sides of the two rail supports respectively.

7. The back-side film peeling machine according to claim 6, characterized in that: It also includes a fixing mechanism for fixing the product when the product is fully transferred to the first transfer section. The fixing mechanism includes opposing pressure block cylinders on the outer surfaces of the two rail brackets, a support block driven by the pressure block cylinders, and a plurality of small pressure blocks on the bottom surface of the support block that cooperate with the rail to press down the edge of the product.

8. The back-side film peeling machine according to claim 7, characterized in that: Each of the support blocks is also provided with a movable plate on its surface, and each movable plate has a downwardly extending positioning pin on its inner edge. The positioning pin is adapted to the positioning hole on the product to accurately position the product.

9. The back-side film peeling machine according to claim 8, characterized in that: The rail support is also equipped with a sensor for detecting whether there is a gap between the moving plate and the support block.

10. The back-side film peeling machine according to claim 9, characterized in that: The first conveying section is equipped with a camera for detecting whether there is residual film on the back of the product. The camera is located below the rail and in front of the fixing mechanism.

Images