film tearing machine

Abstract

This application pertains to carrier processing equipment, specifically a film-tearing machine, used to automatically tear the film from the upper surface of annular sheet-shaped carriers. During film tearing, a blocking part and a second pressure claw provide a counterforce on the upper side of the carrier, allowing the top block to smoothly separate the film from the carrier and form an insertion port when pushing the first end of the film from the inner ring side. Subsequently, the first pressure claw presses against the middle of the first end of the carrier through the insertion port, and the second pressure claw retracts, ensuring that the carrier is pressed tightly during the film tearing process. The gripper holds the first end of the film and pulls it towards the end. When it approaches the top block, the second pressure claw presses against the carrier again from both sides to provide sufficient downward pressure to cope with the increased tearing force. At the same time, the top block moves down to avoid the gripper, ensuring smooth traction without interference. When the gripper moves to the vicinity of the end of the carrier, the blocking part moves away from above the end, allowing the film to completely detach. All structures work together to complete automated film tearing, replacing manual operation and improving film tearing efficiency and carrier recovery convenience.

Description

Technical Field

[0001] This application pertains to the processing equipment for a vehicle, specifically a film-tearing machine. Background Technology

[0002] This section provides background information relevant to this application and is not necessarily prior art.

[0003] In the assembly process of some electrical components, a carrier is usually required to facilitate their transport and transfer. The existing practice is to adhere a film to the surface of a ring-shaped sheet carrier, so that one surface of the carrier and the hollowed-out part in the middle are covered by the film. The electrical components are fixed to the carrier by the film, so that the electrical components can be attached to the carrier and transferred between various workstations. However, since the film is still adhered to the surface of the carrier after the electrical components are assembled, the film needs to be manually removed from the carrier in order to recycle the carrier for reuse. Therefore, the efficiency is low, the fatigue strength is high, and it is not conducive to the automated recycling of the carrier for reuse. Summary of the Invention

[0004] The purpose of this application is to overcome the inefficiency of existing carrier-based film removal methods and to provide a film removal machine that can automatically remove film from a carrier.

[0005] To solve the above-mentioned technical problems, this application adopts the following technical solution:

[0006] A film-tearing machine is used to tear the film off the surface of an annular sheet-shaped carrier. The machine includes a film-tearing station equipped with a film-tearing fixture and a film-tearing device. The film-tearing fixture supports the carrier, keeping it horizontally positioned with the film facing upwards. The film-tearing device includes a top block, a first pressure claw, a second pressure claw, a gripper, and a blocking part. During the film-tearing process, the following operations are performed:

[0007] The second pressure claw presses against both sides of the middle part of the upper surface of the carrier;

[0008] The blocking part is disposed above the end of the vehicle with a preset gap;

[0009] In response to the second pressure claw and the blocking part performing the above operation, the top block pushes the first end of the membrane upward from the bottom on the inner ring side of the carrier, so that the first end of the membrane separates from the carrier to form an insertion port;

[0010] The first pressure claw presses against the middle of the front end of the upper surface of the carrier through the insertion port, and then the second pressure claw disengages from the carrier;

[0011] The gripper holds the beginning of the membrane and pulls it toward the end;

[0012] When the gripper moves to the vicinity of the top block, the second pressure claw presses against both sides of the middle portion of the head end of the carrier, the first pressure claw disengages from the carrier, and then the top block moves down and disengages from the membrane;

[0013] As the gripper moves to the vicinity of the end, the blocking portion moves away from above the end of the carrier.

[0014] Compared with the prior art: This application uses a blocking part and a second pressure claw to block the upper side of the carrier at the beginning of film tearing, preventing the top block from directly lifting the carrier when pushing the first end of the film from the inner ring side of the carrier, thus preventing the film from separating from the carrier and forming an insertion port. This provides a reverse force for the movement of the top block, ensuring that the film and the carrier can be successfully separated. Subsequently, the first pressure claw inserts into the insertion port and presses against the middle of the first end of the upper surface of the carrier before the second pressure claw is withdrawn, ensuring that the carrier is always pressed tightly during the film tearing process and preventing the carrier from shifting. When the clamping hand pulls the film to the adjacent top block, the second pressure claw replaces the first pressure claw and presses against the carrier again, applying pressure from both sides of the middle of the first end of the carrier. The pressure is increased as the tearing process progresses, requiring greater tearing force. Therefore, the second pressure claw provides sufficient downward pressure to prevent displacement of the carrier. In addition, the top block moves downward as the gripper moves from the first end to its vicinity, making the gripper pull the film more smoothly and preventing interference. Later in the tearing process, when the gripper moves to the vicinity of the end of the carrier, the blocking part moves away from the end of the carrier to ensure that the film is completely detached from the carrier. The various structures in this application work together to automate the tearing operation, which can replace manual tearing, improve tearing efficiency, and make it easier to recycle the carrier.

[0015] Furthermore, the upper part of the top block has a notch for the part of the gripper used to hold the film to pass through. With the above configuration, when the gripper pulls the film past the position of the top block, the part of the film holding the film passes through the notch. The top block does not need to move down too far before the gripper arrives, nor does the gripper need to move down too early. This reduces the travel distance of the top block and delays the timing of the action, and also avoids mechanical interference between the gripper and the top block.

[0016] Furthermore, a film scraping device is also provided on the side of the fixture away from the first pressure claw. The film scraping device includes a waste trough with an upper opening and a scraper disposed in the waste trough. The upper side of the scraper is constructed with upper scraping teeth and the lower side is constructed with lower scraping teeth. The gripper transfers the film torn from the carrier to the top of the waste trough. The scraper is configured to move in a direction perpendicular to the stroke of the gripper, thereby scraping the film off the gripper to the waste trough by the upper scraping teeth and scraping the film to the side of the waste trough by the lower scraping teeth for compression and sorting. As the scraper moves, it first scrapes the film off the gripper by its upper scraping teeth, and then, as the scraper continues to move, it pushes and compresses the film that has fallen into the waste trough to the side by the lower scraping teeth, so that the waste trough can accommodate more waste film.

[0017] Furthermore, the gripper includes an openable upper gripper and a lower gripper. The lower gripper has an air blowing hole at its end, which is used to connect to an external air source. The air blowing hole is configured to blow air onto the film after the gripper tears off the film, so as to blow the film away from the gripper. Since the surface of the film has a certain degree of stickiness, the above-mentioned arrangement can blow the film away from the gripper by blowing air onto the film through the air blowing hole at the end of the lower gripper.

[0018] Furthermore, the film-tearing device also includes a film-tearing drive unit for driving the gripper to move. The film-tearing drive unit includes a longitudinal drive module and a transverse drive module. The gripper is disposed in the longitudinal drive module. The longitudinal drive module is configured to drive the gripper to descend at the first end to grip the film and then rise. The transverse drive module is configured to drive the longitudinal drive module and the gripper to move from the first end to above the waste trough. The longitudinal drive module drives the gripper to descend to grip the first end of the film and then rise, lifting the first end of the film off the carrier surface before the transverse drive module drives it to pull towards the end, preventing the gripper from dragging and scraping the carrier surface during horizontal traction. At the same time, the transverse drive module drives the longitudinal drive module and the gripper to move from the first end to above the waste trough, realizing a continuous action of film tearing and waste film disposal, without the need for an additional transfer mechanism.

[0019] Furthermore, it also includes a transfer device for transferring a carrier between the film-tearing station and stations upstream and downstream of it. The transfer device includes at least two synchronously lifting brackets and a transfer drive unit for driving the brackets to translate. The brackets have an upwardly extending boss in their center. The carrier rests on the upper side of the bracket, and the boss abuts against the inner edges of both sides of the carrier. The film-tearing fixture has a first channel in its center for the brackets to pass through. When the brackets translate downstream, they enter the first channel in an upward posture and then descend to support the carrier on the film-tearing fixture. Then, they translate upstream back to the previous station and rise to push the carrier away from the film-tearing fixture. The brackets, positioned and supported by the boss abutting against the inner edge of the carrier, improve the stability of the carrier during transfer. Furthermore, using two or more brackets enables automated handover of the carrier between stations.

[0020] Furthermore, it also includes a loading station located upstream of the film-tearing station. The loading station is equipped with a loading machine for accommodating carriers, a loading fixture, and a flipping device. The loading machine is configured to accommodate multiple carriers, and the flipping device is configured to acquire the carriers from the loading machine and flip them to a horizontal position with the film facing upwards. The loading fixture includes two lifting and lowering loading support platforms arranged opposite each other, with a second channel constructed between the two loading support platforms. When the carrier is flipped to the position with the film facing upwards, the loading support platforms rise, and the flipping device drives the carrier to descend so that the carrier is supported on the loading support platforms. In response to the rising of the loading support platforms, the bracket rises below the loading support platforms to receive the carrier when the loading support platforms descend. The process of the carrier moving from the loading machine to the bracket is completed collaboratively by the flipping gripper and the loading support platforms. Since the position of the flipping gripper involves other equipment or mechanisms, the collaborative completion of the above two processes can reduce the descent stroke of the flipping gripper, thus avoiding interference with other equipment or mechanisms.

[0021] Furthermore, the feeding machine includes multiple shelves that can be raised and lowered synchronously, and a material rack that can be detachably configured on each shelf. The material rack is used to stack multiple carriers horizontally with the film facing down and spaced apart. A set of photoelectric sensors is respectively configured on the front and rear sides of the feeding machine. Each set of photoelectric sensors includes a transmitter on one side of the feeding machine (either the upper or lower side) and a receiver on the other side. The front and rear sides of the material rack are respectively provided with openings. The carrier is horizontally inserted into the material rack through the openings. The flipping device obtains the carrier from the front opening of the material rack. The transmitter emits a light signal longitudinally and it is received by the receiver. When the light signal on either side is blocked, it is determined that the material rack or the carrier is not in place. By setting openings on the front and rear sides of the material rack, the carrier is inserted horizontally into the material rack through the openings, so that the light signal of the photoelectric sensor can illuminate each layer of carrier longitudinally. When the material rack is not placed in place or the carrier is misaligned within the material rack, the light signal is blocked, and the system can detect and alarm in time, avoiding the failure of the flipping device to grab or the carrier to fall due to the carrier's position deviation, thus improving the reliability and safety of material feeding.

[0022] Furthermore, the flipping device includes a rotary gripper and a flipping drive unit. The flipping drive unit is configured to drive the rotary gripper to approach the carrier in the material grabbing rack of the feeder and move it above the feeding fixture. Then, the rotary gripper flips the carrier horizontally by 180 degrees. In response to the feeding support platform rising into position, the flipping drive unit drives the rotary gripper to descend, and the rotary gripper releases the carrier so that the carrier is supported on the feeding support platform.

[0023] Furthermore, it also includes a wiping station located downstream of the film-tearing station. The wiping station is equipped with a wiping device, a wiping fixture, and a rotating device. The wiping fixture has a third channel in the middle for the support to pass through. There are three supports. When the supports are moved downstream, they are configured to enter the third channel in an upward posture and then descend to support the carrier on the wiping fixture. Then, they are moved upstream to return to the previous station and rise to push the carrier away from the wiping fixture.

[0024] The wiping device is equipped with an upper and lower pressure frame that can be opened and closed longitudinally, a flexible belt that passes around the upper and lower pressure frames in sequence, a release reel at the upper end for releasing the flexible belt, and a take-up reel at the lower end for taking up the flexible belt. The front side of the upper pressure frame and the upper side of the lower pressure frame are respectively constructed with spray holes that communicate with the alcohol delivery device. The flexible belt covers the spray holes. The take-up reel is configured to pull the flexible belt from top to bottom and move it from the upper and lower pressure frames in sequence when rotating, so that the part of the flexible belt that is sprayed with water through the spray holes is transferred to the bottom of the upper pressure frame and the top of the lower pressure frame, respectively. The upper and lower pressure frames are configured to clamp the upper and lower surfaces of the carrier when closed. The rotating device is configured to drive the carrier to rotate relative to the wiping fixture, thereby wiping the upper and lower surfaces of the carrier by the flexible belt.

[0025] The bracket sends the peeled film carrier into the wiping fixture through the third channel, realizing the automated connection between the peeling and wiping processes. The take-up reel pulls the flexible belt to move, so that the part of the flexible belt wetted by alcohol at the spray hole is transferred to the bottom of the upper pressure frame and the top of the lower pressure frame, ensuring that the surface of the flexible belt in contact with the carrier is wet each time it is wiped. After the upper and lower pressure frames close and clamp the carrier, the rotating device drives the carrier to rotate, and the flexible belt wipes the upper and lower surfaces of the carrier, thereby removing the residual adhesive or stains after peeling the film.

[0026] Furthermore, the wiping fixture includes wiping support platforms for supporting the four corners of the carrier. The third channel is formed between the two front wiping support platforms and the two rear wiping support platforms. The rotating device includes an upper roller and a lower roller disposed between two adjacent wiping support platforms. One of the upper roller and the lower roller is connected to a rotation drive unit. The carrier is supported on the upper side of each wiping support platform. Each wiping support platform has a bearing that slides with the inner edge of the carrier on its inner side. The wiping support platforms only support the carrier at the four corners, reducing the contact area with the carrier and exposing most of the upper and lower surfaces of the carrier. This reduces friction between the carrier and the wiping fixture when the carrier rotates, preventing damage to the carrier. The bearing slides with the inner edge of the carrier, reducing the frictional resistance between the inner edge of the carrier and the wiping support platform when the rotating device drives the carrier to rotate, making the carrier rotate smoothly and also reducing carrier wear.

[0027] Furthermore, the wiping station also includes a wiping drive unit for driving the wiping device to move relative to the wiping fixture. The above arrangement facilitates the wiping device to make way when the carrier enters or exits the wiping fixture, and the wiping device moves to the wiping position after the carrier is placed in place, thus avoiding motion interference.

[0028] Furthermore, the lower side of the upper pressure frame and the upper side of the lower pressure frame are respectively provided with elastic pressing elements. The elastic pressing elements on the upper and lower sides are configured to press the flexible belt when the upper pressure frame and the lower pressure frame are closed. The rotating device is configured to drive the carrier to rotate back and forth between the upper pressure frame and the lower pressure frame. The aforementioned elastic pressure element presses the flexible strip when closed, which on the one hand increases the tension of the flexible strip, maintaining contact pressure between the flexible strip and the carrier surface and preventing lateral displacement of the flexible strip when the carrier rotates. On the other hand, since the rotation of the carrier will pull the flexible strip to a certain extent, causing it to shift, the elastic pressure element clamps the flexible strip to prevent it from shifting. In addition, to reduce the possibility of the flexible strip shifting, the carrier is driven to rotate in both directions by a rotating device. When the flexible strip tends to shift due to the unidirectional rotation of the carrier, the reverse rotation can bring it back to its original position. The above settings maintain the corresponding position of the flexible strip and the spray hole, ensuring that the wet part of the flexible strip is always in the effective wiping area during the wiping process, thus ensuring the wiping effect. Attached Figure Description

[0029] Figure 1 This is a 3D view of a film-peeling machine;

[0030] Figure 2 This is a top view of the film-peeling machine;

[0031] Figure 3 This is a structural diagram of the bracket and various fixtures;

[0032] Figure 4 This is a structural diagram of the bracket;

[0033] Figure 5 and Figure 6 A 3D view of the material loading station;

[0034] Figure 7 and Figure 8 A 3D view of the film-peeling station;

[0035] Figure 9 This is a partial structural diagram of the film-tearing device;

[0036] Figures 10 to 15 This is a flowchart of the film peeling process;

[0037] Figure 16 This is a schematic diagram of the film scraping device;

[0038] Figure 17A 3D view of the wiping station;

[0039] Figure 18 This is a structural diagram of the upper and lower pressure frames;

[0040] Figure 19 This is a schematic diagram of the structure when the upper and lower pressure frames are closed to wipe the vehicle. Detailed Implementation

[0041] The specific embodiments of this application are described below with reference to the accompanying drawings.

[0042] See Figures 1 to 3 This application provides a film-peeling machine for automatically peeling off the film 101 from the surface of an annular sheet carrier 100. The film 101 is specifically a plastic film, and the carrier 100 has a hollow area in the middle. The film 101 and the hollow area cover the surface of the carrier 100. The carrier 100 involved in this embodiment is particularly an annular sheet metal. The purpose of this application is to peel the film 101 off the carrier 100. The film-peeling machine includes a film-peeling station 1, a loading station 3 located upstream of the film-peeling station 1, a wiping station 4 located downstream of the film-peeling station 1, a unloading station 5 located downstream of the film-peeling station 1, and a transfer device 2 for transferring the carrier 100 between the above-mentioned stations, thereby transferring a carrier 100 sequentially from the loading station 3 to the film-peeling station 1 and the wiping station 4.

[0043] See Figures 2 to 4 The transfer device 2 includes at least two synchronously lifting brackets 21 and a transfer drive unit 22 for driving the brackets 21 to translate. The brackets 21 have upwardly extending bosses 211 in their middle sections. When the carrier 100 is placed, the carrier 100 rests on the upper side of the brackets 21, and the bosses 211 abut against the inner edges of both sides of the carrier 100. Figures 2 to 4 In the illustrated embodiment, to facilitate the transfer of the carrier 100 between the four workstations, three brackets 21 are configured. The transfer drive unit 22 drives the three brackets 21 to move synchronously downstream or upstream, thereby enabling the handover of the carrier 100 between workstations. The lifting and lowering of the brackets 21 can be achieved using existing cylinders.

[0044] See Figure 5 and Figure 6The loading station 3 is equipped with a loading machine 31, a loading fixture 32, and a flipping device 33. The loading machine 31 includes multiple shelves 311 that can be raised and lowered synchronously. Each shelf 311 has a material rack 312 that can be detachably placed on it. The material rack 312 is used to stack multiple carriers 100 horizontally with the film facing down and spaced apart. The front and rear sides of the material rack 312 are respectively constructed with openings 3121 for the carriers 100 to be inserted or removed horizontally. In this embodiment, the opening 3121 on the front side of the material rack 312 is used to remove the carriers 100, and the opening 3121 on the rear side is equipped with a limiting post 315 to restrict the movement of the carriers 100. The front and rear sides of the loading machine 31 Each set of photoelectric sensors 313 is configured, and each set of photoelectric sensors 313 includes a transmitter 3131 and a receiver 3132 located on the upper and lower sides of the feeder 31. The positions of the transmitter 3131 and the receiver 3132 can be interchanged. The transmitter 3131 receives light signals in the longitudinal direction. When the material rack 312 is not pushed into place or the carrier 100 is offset within the material rack 312, the light signal will be blocked. Therefore, when the light signal of the photoelectric sensor 313 on either side is blocked, the system judges the abnormality and issues an alarm to prevent the flipping device 33 from failing to grab the carrier 100 and to prevent the carrier 100 from falling and causing a safety accident.

[0045] During material loading, the loading machine 31 drives the shelf 311 to rise one by one to retrieve materials. When the carrier 100 in the current shelf 311 is exhausted, the loading machine 311 is driven to rise again to retrieve the carrier 100 from the next shelf 311, and so on, to achieve material storage and improve work efficiency. In some specific embodiments, the lifting and lowering of the shelf 311 can be achieved by the existing screw and nut drive mechanism 314.

[0046] See Figure 3 , Figure 5 and Figure 6The flipping device 33 includes a rotating gripper 331 and a flipping drive unit 332. During loading, the flipping drive unit 332 drives the rotating gripper 331 to approach the loading machine 31 and grab the carrier 100 from the front opening 3121 of the material rack 312. After moving it above the loading fixture 32, the carrier 100 is flipped horizontally by 180 degrees so that the film 101 faces upward. The loading fixture 32 includes two oppositely arranged and liftable loading support platforms 321. A second channel 322 is formed between the two loading support platforms 321. After the flipping is completed, the loading support platform 321 rises, and the flipping drive unit 332 drives the rotating gripper 331 to descend and release the carrier 100, so that the carrier 100 is supported on the loading support platform 321. Then the bracket 21 rises to the bottom of the loading support platform 321. When the loading support platform 321 descends, it receives the carrier 100, thus completing the loading of the carrier 100. The process of the carrier 100 moving from the feeder 31 to the bracket 21 is completed by the flipping gripper and the feeding support table 321 working together. Since the position of the flipping gripper involves other equipment or mechanisms, the descent stroke of the flipping gripper can be reduced by the cooperation of the two parts, thus avoiding interference with other equipment or mechanisms.

[0047] See Figure 6 In some embodiments, the rotary gripper 331 of this application includes a rotary cylinder 333 and a clamping cylinder 334 disposed on the output end of the rotary cylinder 333, the clamping cylinder 334 being used to clamp the carrier 100. The flipping drive unit 332 adopts an existing XYZ drive module.

[0048] Referring to the figure, the film-tearing station 1 includes a film-tearing fixture 11 and a film-tearing device 12. The film-tearing fixture 11 has a first channel 111 in the middle for the bracket 21 to pass through. When the bracket 21 carries the carrier 100 and moves from the loading station 3 to the film-tearing station 1, the bracket 21 enters the first channel 111 in an upward posture and then descends to carry the carrier 100 on the film-tearing fixture 11. Then the bracket 21 moves back to the loading station 3 in the upstream direction, i.e., the direction of the loading station 3, and waits. After the film is torn, it rises and passes through another bracket 21 to push the carrier 100 away from the film-tearing fixture 11.

[0049] See Figure 2 , Figure 3 , Figures 7 to 9 The film-tearing device 12 includes a top block 121, a first pressing claw 122, a second pressing claw 123, a gripper 124, and a blocking part 125.

[0050] like Figures 9 to 11 When the film-tearing 101 begins, the second pressure claw 123 presses against both sides of the middle portion of the upper surface of the carrier 100, and the blocking part 125 is positioned above the end of the carrier 100 with a preset gap. Together, they restrict the longitudinal degree of freedom of the carrier 100 from above. Then, as... Figure 12As shown, the top block 121 pushes the first end of the membrane 101 upwards from the bottom on the inner ring side of the carrier 100, causing the first end of the membrane 101 to partially separate from the carrier 100, forming an insertion port 102. The first pressure claw 122 then inserts through the insertion port 102 and presses against the middle of the first end of the upper side of the carrier 100 where the membrane 101 has been separated. The second pressure claw 123 disengages from the carrier 100, thereby replacing the pressing position, ensuring that the carrier 100 will not shift during the subsequent tearing of the membrane 101. Subsequently, as... Figure 13 As shown, the gripper 124 approaches and holds the beginning of the membrane 101 and pulls it toward the end, as... Figure 14 As shown, when the gripper 124 moves to the adjacent top block 121, the second pressure claw 123 presses against both sides of the middle of the front end of the carrier 100 again, and the first pressure claw 122 disengages from the carrier 100. At this time, the second pressure claw 123 provides downward pressure from both sides to cope with the increased traction force of the tear film 101 in the later stage. Subsequently, the top block 121 moves down to avoid interference with the gripper 124, allowing the gripper 124 to pass smoothly. Figure 15 As shown, when the gripper 124 continues to pull to the end of the adjacent carrier 100, the blocking part 125 moves away from above the end of the carrier 100, making room for the membrane 101 to be completely torn off.

[0051] See Figures 7 to 9 In one specific implementation, the first pressure claw 122 is configured at the head end of the film-tearing fixture 11 and is designed as a long strip of first pressure bar. It is extended and retracted relative to the film-tearing fixture 11 by means of a cylinder. The second pressure claw 123 and the top block 121 are raised and lowered by a pressing cylinder 120 respectively. The two are fixed on the same base 126 by their pressing cylinders 120. The base 126 is located below the film-tearing fixture 11. The second pressure claw 123 extends above the film-tearing fixture 11. The top block 121 is correspondingly located on the lower side of the inner ring side of the carrier 100. The second pressure claw 123 is configured with two opposing second pressure bars for pressing against the carrier 100.

[0052] See Figure 7 In one specific implementation, the blocking part 125 is configured at the end of the film-tearing fixture 11, and it is provided with two limiting strips arranged opposite to each other above the film-tearing fixture 11. The blocking part 125 is moved horizontally closer to or away from the film-tearing fixture 11 by a cylinder.

[0053] See Figure 9As an improved solution, the upper part of the top block 121 is provided with a notch 1211 for the part of the gripper 124 used to hold the film to pass through. With the above configuration, when the gripper 124 pulls the film past the position of the top block 121, the part holding the film passes through the notch 1211. The top block 121 does not need to move down too far before the gripper 124 arrives, nor does the gripper 124 need to move down too early. This reduces the travel distance of the top block 121 and delays the timing of the action, and also avoids mechanical interference between the gripper 124 and the top block 121.

[0054] See Figures 7 to 9 In some embodiments, the film-tearing device 12 further includes a film-tearing drive unit 14 for driving the gripper 124 to move. The film-tearing drive unit 14 includes a longitudinal drive module 141 and a transverse drive module 142. The gripper 124 is disposed on the longitudinal drive module 141. The longitudinal drive module 141 is configured to drive the gripper 124 to rise after descending at the first end of the carrier 100 to grip the film. The transverse drive module 142 is configured to drive the longitudinal drive module 141 and the gripper 124 to move from the first end to the second end, thereby achieving film traction. The longitudinal drive module 141 includes a lifting cylinder 1411. The gripper 124 is connected to the output end of the lifting cylinder 1411. The gripper 124 includes an openable upper gripper 1242 and a lower gripper 124. 3. The lower gripper 1243 can be fixedly connected to the body of the lifting cylinder 1411. The upper gripper 1242 is disposed at the output end of a film-tearing cylinder 1245, which is fixedly installed on the body of the lifting cylinder 1411. When the film-tearing cylinder 1245 drives the upper gripper 1242 to move, the gripper 124 opens and closes. The end of the lower gripper 1243 is provided with an air blowing hole 1241, which is used to connect to an external air source. The air blowing hole 1241 is configured to blow air onto the film after the gripper 124 tears off the film, so as to blow the film away from the gripper 124. Since the surface of the film has a certain degree of stickiness, the above-mentioned arrangement can blow the film away from the gripper 124 by blowing air onto the film through the air blowing hole 1241 at the end of the lower gripper 1243.

[0055] See Figure 1 , Figure 2 , Figure 16As an improved solution, this application also includes a film scraping device 13 disposed on the side of the fixture away from the first pressure claw 122. The film scraping device 13 includes a waste trough 131 with an upper opening and a scraper 132 disposed in the waste trough 131. The scraper 132 has upper scraping teeth 1321 on its upper side and lower scraping teeth 1322 on its lower side. The gripper 124 transfers the film torn from the carrier 100 to above the waste trough 131. The scraper 132 is configured to move in a direction perpendicular to the stroke of the gripper 124. The upper scraper tooth 1321 scrapes the film off the gripper 124 and onto the waste trough 131, while the lower scraper tooth 1322 scrapes the film to the side of the waste trough 131 for compression and finishing. As the scraper 132 moves, the upper scraper tooth 1321 first scrapes the film off the gripper 124, and then the lower scraper tooth 132 pushes and compresses the film that has fallen into the waste trough 131 to the side, so that the waste trough 131 can accommodate more waste film. In one specific implementation, a scraping drive unit 133 for driving the scraper 132 is provided at the bottom of the waste trough 131. The scraper 132 is coupled to the scraping drive unit 133 through a connecting element 134. The connecting element 134 is configured as a frame 134 that is slidably sleeved on the periphery of the waste trough 131. The frame 134 is fixedly connected to the scraper 132 and coupled to the scraping drive unit 133.

[0056] See Figure 1 , Figure 7 , Figure 16 The lateral drive module 142 is configured to drive the longitudinal drive module 141 and the gripper 124 to move from the beginning end to above the waste trough 131. The longitudinal drive module 141 drives the gripper 124 to descend and grip the beginning end of the film, then rises, lifting the beginning end of the film off the surface of the carrier 100. The lateral drive module 142 then drives the film to pull it towards the end, preventing the gripper 124 from dragging the surface of the carrier 100 during horizontal traction. Simultaneously, the lateral drive module 142 drives the longitudinal drive module 141 and the gripper 124 to move from the beginning end to above the waste trough 131, achieving continuous film tearing and waste film disposal without the need for an additional transfer mechanism. In one specific embodiment, the lateral drive module 142 includes a slide rail 1421 extending from the beginning end to above the waste trough 131, and a lateral drive unit 1422 that drives the longitudinal drive module 141 to slide along the slide rail 1421.

[0057] Referring to the figure, the wiping station 4 includes a wiping device 41, a wiping fixture 42, a rotating device 43, and a wiping drive unit 44. The wiping fixture 42 has a third channel 423 in the middle for the bracket 21 to pass through. There are three brackets 21. When the bracket 21 carries the carrier 100 and moves from the film-tearing station 1 to the wiping station 4, the bracket 21 enters the third channel 423 in an upward posture and then descends to carry the carrier 100 on the wiping fixture 42. Then the bracket 21 moves back upstream to the direction of the film-tearing station 1 and waits. After the film is peeled off, it rises to push the carrier 100 away from the wiping fixture 42.

[0058] See Figure 17 The wiping fixture 42 includes wiping support platforms 421 for supporting the four corners of the carrier 100. The third channel 423 is formed between the two front wiping support platforms 421 and the two rear wiping support platforms 421. The rotating device 43 includes an upper roller 431 and a lower roller 432 disposed between two adjacent wiping support platforms 421. One of the upper roller 431 and the lower roller 432 is connected to a rotation drive unit 433. The carrier 100 is supported on the upper side of each wiping support platform 421. The inner side of each wiping support platform 421 is respectively arranged with a connection to the carrier 100. The bearing 422 with its inner edge sliding fits, and the wiping support table 421 only supports the carrier 100 at the four corners, reducing the contact area with the carrier 100 and exposing most of the upper and lower surfaces of the carrier 100. This reduces the friction between the carrier 100 and the wiping fixture 42 when the carrier 100 rotates, preventing damage to the carrier 100. The bearing 422 with its inner edge sliding fits, reducing the frictional resistance between the inner edge of the carrier 100 and the wiping support table 421 when the rotating device 43 drives the carrier 100 to rotate, making the carrier 100 rotate smoothly and also reducing wear on the carrier 100.

[0059] See Figures 17 to 19The wiping device 41 is equipped with an upper pressure frame 411 and a lower pressure frame 412 that can be opened and closed longitudinally, a flexible belt 413 that passes sequentially around the upper pressure frame 411 and the lower pressure frame 412, a release reel 414 at the upper end for releasing the flexible belt 413, and a take-up reel 415 at the lower end for taking up the flexible belt 413. In order to improve the tension of the flexible belt 413, several tension rollers are provided between the release reel 414 and the upper pressure frame 411, and between the lower pressure frame 412 and the take-up reel 415. The flexible belt 413 is sequentially wound around each tension roller. The front side of the upper pressure frame 411 and the upper side of the lower pressure frame 412 are respectively constructed with a connecting channel. The spray hole 416 of the fine conveying device is covered by the flexible belt 413. The take-up reel 415 is configured to pull the flexible belt 413 from top to bottom when rotating, moving it sequentially from the upper pressure frame 411 and the lower pressure frame 412. This allows the flexible belt 413 to be transferred from the spray hole 416 to the bottom of the upper pressure frame 411 and the top of the lower pressure frame 412. The upper pressure frame 411 and the lower pressure frame 412 are configured to clamp the upper and lower surfaces of the carrier 100 when they are closed. The rotating device 43 is configured to drive the carrier 100 to rotate relative to the wiping fixture 42, thereby wiping the upper and lower surfaces of the carrier 100 through the flexible belt 413.

[0060] See Figures 17 to 19 The wiping drive unit 44 is used to drive the wiping device 41 to move relative to the wiping fixture 42. The above arrangement facilitates the wiping device 41 to make way when the carrier 100 enters and exits the wiping fixture 42. After the carrier 100 is placed in place, the wiping device 41 moves to the wiping position to avoid motion interference.

[0061] See Figure 18 The upper pressure frame 411 and the lower pressure frame 412 are respectively provided with a conveying channel 418 for connecting the corresponding spray hole 416 and the alcohol conveying device on the side of the spray hole 416.

[0062] See Figure 18 and Figure 19As an improved solution, the lower side of the upper pressure frame 411 and the upper side of the lower pressure frame 412 are respectively provided with elastic pressing elements 417. The elastic pressing elements 417 on the upper and lower sides are configured to press the flexible belt 413 when the upper pressure frame 411 and the lower pressure frame 412 are closed. The rotating device 43 is configured to drive the carrier 100 to rotate back and forth between the upper pressure frame 411 and the lower pressure frame 412. The aforementioned elastic pressing element 417 presses the flexible strip 413 when closed. On the one hand, this increases the tension of the flexible strip 413, maintaining contact pressure between the flexible strip 413 and the surface of the carrier 100, preventing the flexible strip 413 from shifting laterally when the carrier 100 rotates. On the other hand, since the rotation of the carrier 100 will pull the flexible strip 413 to some extent, causing it to shift, the elastic pressing element 417 clamps the flexible strip 413 to prevent it from shifting. In addition, to reduce the shifting of the flexible strip 413, the carrier 100 is driven to rotate in both directions by the rotating device 43. When the flexible strip 413 tends to shift due to the unidirectional rotation of the carrier 100, the reverse rotation can bring it back to its original position. The above settings maintain the corresponding position of the flexible strip 413 and the spray hole 416, ensuring that the wet part of the flexible strip 413 is always in the effective wiping area during the wiping process, thus ensuring the wiping effect.

[0063] See Figure 1 The unloading station 5 includes a loading vehicle 51 and an unloading gripper 52 mounted above the loading vehicle 51. The loading vehicle 51 is equipped with a storage section 511 with an inlet on the upper side. During unloading, the bracket 21 moves horizontally to the unloading station 5, so that the bracket 21 moves horizontally in an upward posture to below the unloading gripper 52. Then the unloading gripper 52 moves down to grab the carrier 100 on the bracket 21. After the bracket 21 moves down and moves horizontally back to the wiping station 4 in the upstream direction, the unloading gripper 52 releases the carrier 100, so that the carrier 100 falls into the storage section 511 by itself.

[0064] The working process of this application is as follows: Multiple carriers 100 in the feeding machine 31 are stacked in the material rack 312 with the film facing downwards. The flipping device 33 grabs the carrier 100 from the front opening 3121 of the material rack 312 and flips it 180 degrees so that the film faces upwards. It is then placed on the feeding support platform 321 of the feeding fixture 32. The bracket 21 rises, and the feeding support platform 321 descends, allowing the bracket 21 to receive the carrier 100 and transfer it downstream to the film-tearing station 1. After the bracket 21 enters the first channel 111 of the film-tearing fixture 11, it descends, placing the carrier 100 on the film-tearing fixture 11, as shown below. Figures 10 to 15As shown, the film tearing process is as follows: the second pressure claw 123 presses against both sides of the middle of the first end of the carrier 100, the blocking part 125 is disposed above the end, the top block 121 pushes the first end of the film from the bottom of the inner ring side of the carrier 100 to form an insertion port 102, the first pressure claw 122 is inserted through the insertion port 102 to press against the middle of the first end of the carrier 100, and then the second pressure claw 123 disengages, the gripper 124 grips the first end of the film and pulls it towards the end. When the gripper 124 is close to the top block 121, the second pressure claw 123 presses again, the first pressure claw 122 disengages, the top block 121 moves down to avoid it, and when the gripper 124 continues to pull to the vicinity of the end, the blocking part 125 moves away from above the carrier 100, so that the film is completely torn off.

[0065] The gripper 124 transfers the torn film to the waste trough 131 above the film scraping device 13. The scraper 132 moves in a direction perpendicular to the stroke of the gripper 124. The upper scraper tooth 1321 scrapes the film off the gripper 124 into the waste trough 131. The lower scraper tooth 1322 continues to move with the scraper 132, pushing and compressing the film in the waste trough 131 to the side, thereby realizing the collection and sorting of waste film.

[0066] After the film is peeled off, the bracket 21 rises and pushes the carrier 100 away from the film peeling fixture 11, and moves downstream to the wiping station 4. After entering the third channel 423 of the wiping fixture 42, it descends and places the carrier 100 on the wiping support table 421. The upper pressure frame 411 and the lower pressure frame 412 close and clamp the carrier 100. The flexible belt 413 is moistened with alcohol and then pulled by the take-up reel 415 to the wiping contact surface that contacts the carrier 100. The rotating device 43 drives the carrier 100 to rotate back and forth, and the flexible belt 413 wipes and cleans the upper and lower surfaces of the carrier 100.

[0067] After wiping is completed, the bracket 21 rises to lift the carrier 100 away from the wiping fixture 42 and transfer it to the unloading station 5. The unloading gripper 52 grabs the carrier 100 from the bracket 21 and releases it after the bracket 21 returns to the previous station, allowing the carrier 100 to fall into the storage section 511 of the loading vehicle 51, thus completing the entire film-tearing and recycling process of the carrier 100. At the same time, the three brackets 21 are raised and lowered synchronously and moved back and forth, respectively, and the carrier 100 is circulated and handed over between different stations to realize continuous automated production.

[0068] The contents of the various embodiments of this application can be combined and referenced with each other, and all fall within the protection scope of this application.

[0069] Based on the disclosure and teachings of the foregoing specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this application is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this application should also fall within the protection scope of the claims of this application. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this application.

Claims

1. A film-tearing machine for tearing off the film from the surface of an annular sheet-like carrier, characterized in that, The device includes a film-tearing station (1), which is equipped with a film-tearing fixture (11) and a film-tearing device (12). The film-tearing fixture (11) is used to support the carrier, so that the carrier (100) is placed horizontally with the film facing upward. The film-tearing device (12) includes a top block (121), a first pressure claw (122), a second pressure claw (123), a gripper (124), and a blocking part (125). The film-tearing process performs the following operations: The second pressure claw (123) presses against the middle two sides of the upper surface of the carrier (100); The blocking part (125) is disposed above the end of the vehicle (100) with a preset gap; In response to the second pressure claw (123) and the blocking part (125) performing the above operation, the top block (121) pushes the first end of the membrane upward from the bottom on the inner ring side of the carrier (100), so that the first end of the membrane separates from the carrier (100) to form an insertion port (102). The first pressure claw (122) presses against the middle of the front end of the upper surface of the carrier (100) through the insertion port (102), and then the second pressure claw (123) disengages from the carrier (100). The gripper (124) holds the beginning of the membrane and pulls it toward the end; When the gripper (124) moves to the vicinity of the top block (121), the second pressure claw (123) presses against the middle sides of the head end of the carrier (100), the first pressure claw (122) disengages from the carrier (100), and then the top block (121) moves down and disengages from the membrane; When the gripper (124) moves to the adjacent end, the blocking part (125) moves away from above the end of the carrier (100).

2. The film-tearing machine according to claim 1, characterized in that, The top block (121) has a notch (1211) on the upper side of the middle section for the part of the clamp (124) used to hold the membrane to pass through.

3. The film-tearing machine according to claim 1, characterized in that, The device is also equipped with a film scraping device (13) located on the side of the film-tearing fixture (11) away from the first pressure claw (122). The film scraping device (13) includes a waste trough (131) with an upper opening and a scraper (132) disposed in the waste trough (131). The scraper (132) has an upper scraping tooth (1321) on its upper side and a lower scraping tooth (1322) on its lower side. The gripper (124) transfers the film torn from the carrier (100) to the waste trough (131). The scraper (132) is configured to move in a direction perpendicular to the stroke of the gripper (124), thereby scraping the film from the gripper (124) to the waste trough (131) through the upper scraping tooth (1321) and scraping the film to the side of the waste trough (131) through the lower scraping tooth (1322) for compression and finishing. And / or, the gripper (124) includes an openable upper gripper (1242) and a lower gripper (1243), the end of the lower gripper (1243) being provided with an air hole (1241) for connecting to an external air source, the air hole (1241) being configured to blow air onto the membrane after the gripper (124) tears off the membrane, so as to blow the membrane off the gripper (124).

4. The film-tearing machine according to claim 3, characterized in that, The film-tearing device (12) further includes a film-tearing drive unit (14) for driving the gripper (124) to move. The film-tearing drive unit (14) includes a longitudinal drive module (141) and a transverse drive module (142). The gripper (124) is disposed in the longitudinal drive module (141). The longitudinal drive module (141) is configured to drive the gripper (124) to descend at the head end to grip the film and then rise. The transverse drive module (142) is configured to drive the longitudinal drive module (141) and the gripper (124) to move from the head end to above the waste trough (131).

5. The film-tearing machine according to claim 1, characterized in that, It also includes a transfer device (2) for transferring a carrier (100) between the film-tearing station (1) and stations in its upstream and downstream directions. The transfer device (2) includes at least two synchronously lifting brackets (21) and a transfer drive unit (22) for driving the brackets (21) to translate. The brackets (21) have an upwardly extending boss (211) in the middle. The carrier (100) is supported on the upper side of the brackets (21), and the boss (211) abuts against the upper side of the bracket. On the inner edges of both sides of the carrier (100), the middle part of the film-tearing fixture (11) is constructed with a first channel (111) for the bracket (21) to pass through. The bracket (21) is configured to enter the first channel (111) in an upward posture when it moves downstream, and then descend to support the carrier (100) on the film-tearing fixture (11). Then it moves upstream to return to the previous station and rises to push the carrier (100) away from the film-tearing fixture (11).

6. The film-peeling machine according to claim 5, characterized in that, It also includes a loading station (3) located upstream of the film-tearing station (1), the loading station (3) being equipped with a loading machine (31) for accommodating carriers (100), a loading fixture (32) and a turning device (33), the loading machine (31) being configured to accommodate multiple carriers (100), the turning device (33) being configured to acquire the carriers (100) of the loading machine (31) and turn them to a horizontal position with the film facing upward, the loading fixture (32) including two lifting and lowering loading support platforms (33) arranged opposite to each other. 21) A second channel (322) is constructed between the two loading support platforms (321). When the carrier (100) is flipped so that the membrane faces upward, the loading support platform (321) rises, and the flipping device (33) drives the carrier (100) to fall so that the carrier (100) is supported on the loading support platform (321). In response to the lifting of the loading support platform (321), the bracket (21) rises to the bottom of the loading support platform (321) to receive the carrier (100) when the loading support platform (321) falls.

7. The film-tearing machine according to claim 6, characterized in that, The loading machine (31) includes multiple shelves (311) that can be raised and lowered synchronously, and a rack (312) that can be detachably arranged on each shelf (311). The rack (312) is used to stack multiple carriers (100) with the film facing down and at horizontal intervals. A set of photoelectric sensors (313) is respectively arranged on the front and rear sides of the loading machine (31). Each set of photoelectric sensors (313) includes a transmitter (3131) located on one side of the upper or lower side of the loading machine (31) and a receiver located on the other side. The front and rear sides of the rack (312) are respectively provided with openings (3121). The carrier (100) is horizontally inserted into the rack (312) through the openings (3121). The flipping device (33) obtains the carrier (100) from the front opening (3121) of the rack (312). The transmitting end (3131) emits light signals in the longitudinal direction and is received by the receiving end (3132). When the light signal on either side is blocked, it is determined that the rack (312) or the carrier (100) is not in place.

8. The film-tearing machine according to claim 7, characterized in that, The flipping device (33) includes a rotary gripper (331) and a flipping drive unit (332). The flipping drive unit (332) is configured to drive the rotary gripper (331) to approach the feeder (31) to grab the carrier (100) in the feed rack (312) and move it above the feed fixture (32). Then, the rotary gripper (331) flips the carrier (100) horizontally by 180 degrees. In response to the feed support table (321) rising into place, the flipping drive unit (332) drives the rotary gripper (331) to descend. The rotary gripper (331) releases the carrier (100) so that the carrier (100) is supported by the feed support table (321).

9. The film-tearing machine according to claim 5, characterized in that, It also includes a wiping station (4) located downstream of the film-tearing station (1). The wiping station (4) is equipped with a wiping device (41), a wiping fixture (42), and a rotating device (43). The wiping fixture (42) has a third channel (423) in the middle for the bracket (21) to pass through. There are three brackets (21). When the bracket (21) moves downstream, it enters the third channel (423) in an upward posture and then descends to carry the carrier (100) on the wiping fixture (42). Then it moves upstream to return to the previous station and rises to push the carrier (100) away from the wiping fixture (42). The wiping device (41) is equipped with an upper pressure frame (411) and a lower pressure frame (412) that can be opened and closed longitudinally, a flexible belt (413) that passes around the upper pressure frame (411) and the lower pressure frame (412) in sequence, a release reel (414) disposed at the upper end for releasing the flexible belt (413), and a take-up reel (415) disposed at the lower end for taking up the flexible belt (413). The front side of the upper pressure frame (411) and the upper side of the lower pressure frame (412) are respectively constructed with spray holes (416) that communicate with the alcohol delivery device. The flexible belt (413) covers the spray holes (416), and the take-up reel... (415) is configured to pull the flexible belt (413) from top to bottom during rotation, moving it sequentially from the upper pressure frame (411) and the lower pressure frame (412), so that the part of the flexible belt (413) sprayed through the spray hole (416) is transferred to the bottom of the upper pressure frame (411) and the top of the lower pressure frame (412), respectively. The upper pressure frame (411) and the lower pressure frame (412) are configured to clamp the upper and lower surfaces of the carrier (100) when they are closed. The rotating device (43) is configured to drive the carrier (100) to rotate relative to the wiping fixture (42), thereby wiping the upper and lower surfaces of the carrier (100) through the flexible belt (413).

10. The film-tearing machine according to claim 9, characterized in that, The wiping fixture (42) includes wiping support platforms (421) for supporting the four corners of the carrier (100). The third channel (423) is formed between the two front wiping support platforms (421) and the two rear wiping support platforms (421). The rotating device (43) includes an upper roller (431) and a lower roller (432) disposed between two adjacent wiping support platforms (421). One of the upper roller (431) and the lower roller (432) is connected to a rotation drive unit (433). The carrier (100) is supported on the upper side of each wiping support platform (421). Each wiping support platform (421) has a bearing (422) that slides with the inner edge of the carrier (100) on its inner side. And / or, the wiping station (4) further includes a wiping drive unit (44) for driving the wiping device (41) to move relative to the wiping fixture (42). And / or, the lower side of the upper pressure frame (411) and the upper side of the lower pressure frame (412) are respectively provided with elastic pressing elements (417), the elastic pressing elements (417) on the upper and lower sides are configured to press the flexible belt (413) when the upper pressure frame (411) and the lower pressure frame (412) are closed, and the rotating device (43) is configured to drive the carrier (100) to reciprocate between the upper pressure frame (411) and the lower pressure frame (412).

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