FPC stripping equipment

Abstract

The invention relates to the field of FPC (Flexible Printed Circuit) processing equipment, in particular to FPC stripping equipment, which is characterized in that a first pressing module and a second pressing module are respectively driven by a driving module I and a driving module II to respectively move to positions corresponding to two ends of a material belt, and then the material belt is placed on a stripping plate through an adsorption head I. After the two ends of the material belt are clamped through the first material pressing module and the second material pressing module, the main body part, in the free state, of the material belt is reduced, the material belt is made to be in the tensioning state quickly after being placed on the stripping plate, and therefore the situation that an FPC on the material belt is damaged due to the fact that the main body part of the material belt is prone to winding and knotting is reduced.

Description

Technical Field

[0001] The present invention relates to the field of FPC processing equipment, and particularly to an FPC peeling device. Background Art

[0002] FPC, that is, a flexible printed circuit board, is a highly reliable and extremely flexible printed circuit board made of polyimide or polyester film as the substrate. It has the characteristics of high wiring density, light weight, thin thickness, and good bendability. FPC is usually prepared in the form of a tape, and multiple FPCs are arranged on the substrate. When attaching the FPC to an electronic device, it is necessary to peel the FPC from the backing paper and then bend and attach it.

[0003] In the prior art, when peeling the FPC, one end of the tape is usually pressed tightly, the other end of the tape is clamped and dragged to be tensioned, and the substrate is bent by a plate with a special shape. The FPC pasted on the substrate continues to move forward due to inertia and detaches from the substrate. However, with such a setting, when dragging the tape, the main part of the tape is first in a free state and then is clamped and dragged to become a tensioned state. Before becoming a tensioned state, the main part of the tape is prone to winding and knotting, resulting in damage to the FPC on the tape. Summary of the Invention

[0004] The technical solution adopted by the present invention to solve its technical problems is: to provide an FPC peeling device, including:

[0005] A peeling assembly, the peeling assembly includes a frame, a peeling plate arranged on the frame, a receiving plate, a first pressing module slidably arranged on the frame, a second pressing module arranged under the peeling plate, a driving module one for driving the first pressing module to slide, and a driving module two for driving the second pressing module to move. The peeling plate is provided with a cutting edge. The first pressing module and the second pressing module are respectively used for clamping both ends of the tape. The tape passes through the first pressing module, the peeling plate, and the second pressing module in sequence. The driving module one and the driving module two are used for driving the tape to move along the peeling plate. The peeling plate is used for peeling the FPC from the backing paper, and the receiving plate is used for carrying the peeled FPC;

[0006] The driving module one includes a driving motor one, a driving belt one, a driving gear one, and a plurality of driven gears one. The output shaft of the driving motor one is fixedly connected to the driving gear one. The driving gear one and the driven gears one are both connected to the driving belt one. The driving belt one is connected to the first pressing module. The driving motor one is used for driving the first pressing module to clamp the tape and move;

[0007] The second driving module includes a second slide rail and a driving cylinder arranged on the frame. The second slide rail is inclined. One end of the second slide rail close to the material receiving plate is closer to the peeling plate than the other end of the second slide rail far from the material receiving plate. The setting direction of the driving cylinder corresponds to that of the second slide rail. The output end of the driving cylinder is connected to the second pressing module, and the driving cylinder is used to drive the second pressing module to clamp the material tape and move it.

[0008] Further, the first pressing module includes a first slide rail arranged on the frame, a lower combining plate one slidably arranged on the first slide rail, and a first telescopic cylinder arranged on the lower combining plate one. A first fixing plate is provided at the output end of the first telescopic cylinder. A downward pressing cylinder is provided on the first fixing plate. An upper combining plate one corresponding to the lower combining plate one is provided at the output end of the downward pressing cylinder. The first telescopic cylinder is used to drive the upper combining plate one to move to correspond to the lower combining plate one. The downward pressing cylinder is used to drive the upper combining plate one and the lower combining plate one to cooperate to clamp the material tape. The first driving belt is connected to the lower combining plate one.

[0009] Further, the second pressing module includes an upper combining plate two and a lower combining plate two arranged below the peeling plate. A second telescopic cylinder is provided on the upper combining plate two. The output end of the second telescopic cylinder is connected to the lower combining plate two. The second telescopic cylinder is used to drive the lower combining plate two to move to cooperate with the upper combining plate two to clamp the material tape. The output end of the driving cylinder is connected to the upper combining plate two, and the driving cylinder is used to drive the lower combining plate two and the upper combining plate two to clamp the material tape and move it.

[0010] Further, the peeling assembly further includes a second driving motor, a synchronous pulley set, a second driving gear, a synchronous shaft, a second driven gear, a first driven rack and a second driven rack, and a third slide rail arranged on the frame. The output shaft of the second driving motor is fixedly connected to the second driving gear through the synchronous pulley set. The second driving gear and the second driven gear are both coaxially fixed to the synchronous shaft. The second driving gear meshes with the first driven rack, and the second driven gear meshes with the second driven rack. The first driven rack and the second driven rack are respectively connected to both ends of the moving direction of the peeling plate. The second driving motor is used to drive the peeling plate to move.

[0011] Further, the peeling assembly further includes a lifting cylinder arranged on the frame. The output end of the lifting cylinder is connected to the material receiving plate, and the lifting cylinder is used to drive the material receiving plate to lift.

[0012] Further, saw teeth are provided on the upper combining plate one, the lower combining plate one, the upper combining plate two and the lower combining plate two.

[0013] Further, it further includes a loading component, and the loading component includes a carrier for placing a tape, a moving module, and a suction head one disposed at the output end of the moving module. The moving module is used to drive the suction head one to transfer the tape to the stripping plate.

[0014] Further, it further includes a conveying module and a transfer module. A carrier plate for carrying an FPC is provided on the conveying module. The conveying module is used to convey the FPC to the next process. A suction cup is provided at the output end of the transfer module. The transfer module is used to drive the suction cup to transfer the FPC from the receiving plate to the carrier plate.

[0015] Further, it further includes a CCD industrial camera. The CCD industrial camera is located between the conveying module and the receiving plate, and faces the suction cup. The CCD industrial camera is used to detect the glue on the FPC.

[0016] Further, it further includes an air knife and a centrifugal fan. The air inlet of the air knife is communicated with the centrifugal fan. The air knife is disposed on the suction cup. The air outlet of the air knife corresponds to the carrier plate. The air knife is used to blow off the excess glue on the FPC.

[0017] The beneficial effects of the present invention are as follows: By setting the driving module one and the driving module two to drive the first pressing module and the second pressing module to move to the positions corresponding to the two ends of the tape respectively, and then placing the tape on the stripping plate through the suction head one. After the first pressing module and the second pressing module clamp the two ends of the tape first, the main body part of the tape in the free state is reduced, so that the tape is quickly in a tension state after being placed on the stripping plate, thereby reducing the situation that the FPC on the tape is damaged due to the main body part of the tape being easily wound and knotted. Description of the Drawings

[0018] The following further describes the present invention in conjunction with the drawings and embodiments.

[0019] In the figure: Figure 1 is a top view of an FPC stripping device provided by an embodiment of the present invention;

[0020] Figure 2 is Figure 1 the overall structure diagram of the FPC stripping device shown;

[0021] Figure 3 is Figure 1 the three-dimensional structure diagram of the partial structure shown;

[0022] Figure 4 is Figure 1 the three-dimensional structure diagram of the stripping component with a part of the frame hidden shown;

[0023] Figure 5 The Figure 4 three-dimensional structure diagram of another perspective of the peeling component shown;

[0024] Figure 6 The Figure 4 three-dimensional structure diagram of the peeling component after hiding some structures shown;

[0025] Figure 7 The Figure 6 cross-sectional view of the structure shown;

[0026] Figure 8 The Figure 7 schematic diagram of the principle of the peeling component peeling the FPC shown;

[0027] Figure 9 The Figure 6 three-dimensional structure diagram of the second pressure module and the driving module two shown;

[0028] Figure 10 The Figure 9 three-dimensional structure diagram of the structure shown from the bottom view angle;

[0029] Figure 11 The Figure 6 three-dimensional structure diagram of some parts shown.

[0030] Explanation of reference numerals: 100, FPC peeling device; 10, peeling component; 11, frame; 12, peeling plate; 121, cutting edge; 13, receiving plate; 14, first pressure module; 141, first slide rail; 142, lower clamping plate one; 1421, saw teeth; 143, first telescopic cylinder; 144, first fixing plate; 145, downward pressure cylinder; 146, upper clamping plate one; 15, second pressure module; 151, upper clamping plate two; 152, lower clamping plate two; 153, second telescopic cylinder; 161, driving motor one; 162, driving belt one; 163, driving gear one; 164, driven gear one; 17, driving module two; 171, second slide rail; 172, driving cylinder; 1721, driving plate; 18, driving motor two; 181, synchronous pulley set; 182, driving gear two; 183, synchronous shaft; 184, driven gear two; 185, driven rack one; 186, driven rack two; 187, third slide rail; 19, lifting cylinder; 20, loading component; 21, carrier; 221, first horizontal lead screw transmission mechanism; 222, material transfer cylinder one; 23, suction head one; 50, conveying module; 51, carrier plate; 60, transfer module; 61, suction cup; 62, second horizontal lead screw transmission mechanism; 63, mounting plate; 64, material transfer cylinder two; 65, vacuum generator; 70, CCD industrial camera; 80, air knife; 201, FPC; 2011, mounting hole; 202, substrate. Detailed implementation mode

[0031] In order to make the technical problems to be solved, technical solutions and beneficial effects of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basics of the present invention in a schematic manner, so it only shows the components related to the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work belong to the scope of protection of the present invention.

[0032] Please refer to Figure 1-11 , and a FPC peeling device 100 is provided, which includes a peeling component 10, a feeding component 20, a conveying module 50 and a transfer module 60.

[0033] The peeling component 10 includes a frame 11, a peeling plate 12 arranged on the frame 11, a receiving plate 13, a first pressing module 14 slidably arranged on the frame 11, a second pressing module 15 arranged below the peeling plate 12, a driving module one for driving the first pressing module 14 to slide and a driving module two 17 for driving the second pressing module 15 to move. A cutting edge 121 is provided on the peeling plate 12. The first pressing module 14 and the second pressing module 15 are respectively used to clamp both ends of the tape. The tape passes through the first pressing module 14, the peeling plate 12 and the second pressing module 15 in sequence. The driving module one and the driving module two 17 are used to drive the tape to move along the peeling plate 12. The peeling plate 12 is used to peel the FPC 201 from the backing paper 202, and the receiving plate 13 is used to carry the peeled FPC 201.

[0034] The first pressing module 14 includes a first slide rail 141 arranged on the frame 11, a lower clamping plate one 142 slidably arranged on the first slide rail 141, a first telescopic cylinder 143 arranged on the lower clamping plate one 142. A first fixing plate 144 is provided at the output end of the first telescopic cylinder 143. A downward pressing cylinder 145 is provided on the first fixing plate 144. An upper clamping plate one 146 corresponding to the lower clamping plate one 142 is provided at the output end of the downward pressing cylinder 145. Sawteeth 1421 are provided on both the upper clamping plate one 146 and the lower clamping plate one 142. The first telescopic cylinder 143 is used to drive the upper clamping plate one 146 to move to correspond to the lower clamping plate one 142. The downward pressing cylinder 145 is used to drive the upper clamping plate one 146 and the lower clamping plate one 142 to cooperate to clamp the tape. When clamping the tape, one end of the tape is placed on the lower clamping plate one 142. The first telescopic cylinder 143 drives the upper clamping plate one 146 to move to correspond to the lower clamping plate one 142. The downward pressing cylinder 145 drives the upper clamping plate one 146 to press down and cooperate with the lower clamping plate one 142 to clamp one end of the tape. The sawteeth 1421 on the upper clamping plate one 146 and the lower clamping plate one 142 improve the clamping force on the tape.

[0035] The second material pressing module 15 includes an upper clamping plate two 151 and a lower clamping plate two 152 arranged below the peeling plate 12. A second telescopic cylinder 153 is provided on the lower clamping plate two 152. The output end of the second telescopic cylinder 153 is fixedly connected to the lower clamping plate two 152. Serrations 1421 are provided on both the upper clamping plate two 151 and the lower clamping plate two 152. The second telescopic cylinder 153 is used to drive the lower clamping plate two 152 to move to cooperate with the upper clamping plate two 151 to clamp the strip. Specifically, when the upper clamping plate two 151, the lower clamping plate two 152, and the second telescopic cylinder 153 are all inclined to clamp the strip, one end of the strip is located between the lower clamping plate two 152 and the upper clamping plate two 151. The second telescopic cylinder 153 drives the lower clamping plate two 152 to move to correspond to and cooperate with the upper clamping plate two 151 to clamp one end of the strip. The serrations 1421 on the upper clamping plate two 151 and the lower clamping plate two 152 increase the clamping force on the strip.

[0036] Furthermore, the first driving module includes a first driving motor 161, a first driving belt 162, a first driving gear 163, and a number of driven gears 164. The output shaft of the first driving motor 161 is fixedly connected to the first driving gear 163. Both the first driving gear 163 and the driven gears 164 are connected to the first driving belt 162. The first driving belt 162 is connected to the lower clamping plate one 142. The first driving motor 161 drives the lower clamping plate one 142 and the upper clamping plate one 146 to clamp the strip and move.

[0037] The second driving module 17 includes a second slide rail 171 and a driving cylinder 172 arranged on the frame 11. The second slide rail 171 is inclined. The end of the second slide rail 171 close to the material receiving plate 13 is closer to the peeling plate 12 than the end of the second slide rail 171 far from the material receiving plate 13. The arrangement direction of the driving cylinder 172 corresponds to that of the second slide rail 171. The output end of the driving cylinder 172 is fixedly connected to the upper clamping plate two 151. The driving cylinder 172 is used to drive the lower clamping plate two 152 and the upper clamping plate two 151 to clamp the strip and move. Furthermore, a driving plate 1721 connected to the upper clamping plate two 151 is provided at the output end of the driving cylinder 172.

[0038] When the first material pressing module 14 and the second material pressing module 15 clamp both ends of the strip, first, the first driving motor 161 and the driving cylinder 172 cooperate with each other to drive the first material pressing module 14 and the second material pressing module 15 to move to positions corresponding to both ends of the strip respectively. Then, the strip is placed on the stripping plate 12 in a flat state through the first suction head 23. Both ends of the strip are placed on the first lower clamping plate 142 and the second lower clamping plate 152 respectively. Then, after the first telescopic cylinder 143 drives the second lower clamping plate 152 and the second upper clamping plate 151, and the second telescopic cylinder 153 and the lower pressing cylinder 145 drive the first lower clamping plate 142 and the first upper clamping plate 146 to clamp both ends of the strip respectively, the main body part of the strip in a free state is reduced, so that the strip is quickly in a tension state after being placed on the stripping plate 12, thereby reducing the situation that the FPC on the strip is damaged due to the main body part of the strip being easily wound and knotted.

[0039] The stripping assembly 10 further includes a second driving motor 18, a synchronous pulley set 181, a second driving gear 182, a synchronous shaft 183, a second driven gear 184, a first driven rack 185 and a second driven rack 186, and a third slide rail 187 arranged on the frame 11. The output shaft of the second driving motor 18 is fixedly connected through the synchronous pulley set 181 and the second driving gear 182. Both the second driving gear 182 and the second driven gear 184 are coaxially fixed to the synchronous shaft 183. The second driving gear 182 meshes with the first driven rack 185, and the second driven gear 184 meshes with the second driven rack 186. The first driven rack 185 and the second driven rack 186 are respectively fixedly connected to both ends of the stripping plate 12 in the moving direction. The second driving motor 18 is used to drive the stripping plate 12 to move. When the position of the stripping plate 12 needs to be adjusted, the second driving motor 18 is started, and the second driving gear 182 and the second driven gear 184 are driven to rotate synchronously through the synchronous pulley set 181, so that the first driven rack 185 and the second driven rack 186 drive the stripping plate 12 to move, so that the position of the stripping plate 12 relative to the frame 11 changes, so that the position of the stripping plate 12 adapts to the length of the strip.

[0040] Please refer to Figure 8 When stripping the FPC 201, the first driving motor 161 drives the first lower clamping plate 142 and the first upper clamping plate 146 to clamp one end of the strip and move it to the right, and the driving cylinder 172 controls the second lower clamping plate 152 and the second upper clamping plate 151 to clamp the other end of the strip and move it in the lower left direction along the second slide rail 171, thereby driving the strip to move. When the strip passes through the cutting edge 121 at the end of the stripping plate 12, since the strip is in a tension state, and when the substrate 202 closely adheres to the stripping plate 12 and changes the running direction, the front end of the FPC 201 is forced to break away due to the certain stiffness of its own material. At this time, the FPC 201 continues to move horizontally to the receiving plate 13.

[0041] The stripping component 10 further includes a lifting cylinder 19 disposed on the frame 11. The output end of the lifting cylinder 19 is connected to the receiving plate 13, and the lifting cylinder 19 is used to drive the receiving plate 13 to lift and lower. The lifting cylinder 19 drives the receiving plate 13 to lift and lower to an appropriate height, so that the height where the receiving plate 13 is located can facilitate receiving the FPC 201 stripped from the cutting edge 121 of the stripping plate 12.

[0042] The loading component 20 includes a carrier 21 for placing the tape, a moving module, and a suction head one 23 disposed at the output end of the moving module. The moving module is used to drive the suction head one 23 to transfer the tape onto the stripping plate 12. Specifically, in this embodiment, the moving module includes a first horizontal lead screw drive mechanism 221 disposed along the length direction of the carrier 21 and a material transfer cylinder one 222 disposed along the height direction of the carrier 21. The material transfer cylinder one 222 is fixedly connected to the output end of the first horizontal lead screw drive mechanism 221. A plurality of suction heads one 23 are provided.

[0043] A carrier plate 51 for carrying the FPC 201 is provided on the conveying module 50, and the conveying module 50 is used to transfer the FPC 201 to the next process. Specifically, in this embodiment, the conveying module 50 is a lead screw drive mechanism disposed along the length direction of the carrier 21.

[0044] A suction cup 61 is provided at the output end of the transfer module 60. The transfer module 60 is used to drive the suction cup 61 to transfer the FPC 201 from the receiving plate 13 to the carrier plate 51. Specifically, in this embodiment, the transfer module 60 includes a second horizontal lead screw drive mechanism 62 disposed along the width direction of the carrier 21. An installation plate 63 is provided at the output end of the second horizontal lead screw drive mechanism 62. A material transfer cylinder two 64 disposed along the height direction of the carrier 21 is provided on the installation plate 63. A vacuum generator 65 communicating with the suction cup 61 is provided at the output end of the material transfer cylinder two 64.

[0045] The FPC stripping device 100 further includes a CCD industrial camera 70, an air knife 80, and a centrifugal fan (not shown in the figure). The CCD industrial camera 70 is located between the conveying module 50 and the receiving plate 13, and the CCD industrial camera 70 is disposed facing the suction cup 61. The CCD industrial camera 70 is used to detect the glue on the FPC 201. The air inlet of the air knife 80 is communicated with the centrifugal fan. The air knife 80 is disposed on the suction cup 61, and the air outlet of the air knife 80 corresponds to the carrier plate 51. The air knife 80 is used to blow off the excess glue on the FPC 201.

[0046] Specifically, the CCD industrial camera 70 is used in conjunction with a dispensing mechanism (not shown in the figure). When the transfer module 60 transfers the FPC 201 from the receiving plate 13 to the carrier plate 51, the dispensing mechanism dispenses glue onto the FPC 201, and the CCD industrial camera 70 detects the glue on the FPC 201. If the glue on the FPC 201 overflows, the FPC 201 is placed on the carrier plate 51 by the suction cup 61, and then the centrifugal fan is started, and the overflowing glue on the FPC 201 is blown off by the air knife 80.

Claims

1. An FPC peeling device, characterized in that, Comprising: A stripping component, which includes a frame, a stripping plate arranged on the frame, a material receiving plate, a first material pressing module slidably arranged on the frame, a second material pressing module arranged under the stripping plate, a driving module one for driving the first material pressing module to slide, and a driving module two for driving the second material pressing module to move. A cutting edge is provided on the stripping plate. The first material pressing module and the second material pressing module are respectively used to clamp both ends of the material tape. The material tape passes through the first material pressing module, the stripping plate, and the second material pressing module in sequence. The driving module one and the driving module two are used to drive the material tape to move along the stripping plate. The stripping plate is used to strip the FPC from the backing paper, and the material receiving plate is used to carry the stripped FPC; The driving module one includes a driving motor one, a driving belt one, a driving gear one, and a number of driven gears one. The output shaft of the driving motor one is fixedly connected to the driving gear one. The driving gear one and the driven gears one are both connected to the driving belt one. The driving belt one is connected to the first material pressing module. The driving motor one is used to drive the first material pressing module to clamp the material tape and move; The driving module two includes a second slide rail and a driving cylinder arranged on the frame. The second slide rail is inclined. One end of the second slide rail close to the material receiving plate is closer to the stripping plate than the end of the second slide rail far from the material receiving plate. The setting direction of the driving cylinder corresponds to that of the second slide rail. The output end of the driving cylinder is connected to the second material pressing module. The driving cylinder is used to drive the second material pressing module to clamp the material tape and move.

2. The FPC peeling device according to claim 1, wherein: The first material pressing module includes a first slide rail arranged on the frame, a lower clamping plate one slidably arranged on the first slide rail, a first telescopic cylinder arranged on the lower clamping plate one. A first fixing plate is provided at the output end of the first telescopic cylinder. A downward pressing cylinder is provided on the first fixing plate. The output end of the downward pressing cylinder is provided with an upper clamping plate one corresponding to the lower clamping plate one. The first telescopic cylinder is used to drive the upper clamping plate one to move to correspond to the lower clamping plate one. The downward pressing cylinder is used to drive the upper clamping plate one and the lower clamping plate one to cooperate to clamp the material tape. The driving belt one is connected to the lower clamping plate one.

3. The FPC peeling device according to claim 2, characterized in that: The second material pressing module includes an upper clamping plate two and a lower clamping plate two arranged under the stripping plate. A second telescopic cylinder is provided on the upper clamping plate two. The output end of the second telescopic cylinder is connected to the lower clamping plate two. The second telescopic cylinder is used to drive the lower clamping plate two to move to cooperate with the upper clamping plate two to clamp the material tape. The output end of the driving cylinder is connected to the upper clamping plate two. The driving cylinder is used to drive the lower clamping plate two and the upper clamping plate two to clamp the material tape and move.

4. The FPC peeling device according to claim 3, wherein: The stripping assembly further includes a second driving motor, a synchronous pulley set, a second driving gear, a synchronous shaft, a second driven gear, a first driven rack and a second driven rack, and a third slide rail provided on the frame. The output shaft of the second driving motor is fixedly connected through the synchronous pulley set and the second driving gear. The second driving gear and the second driven gear are both coaxially fixed to the synchronous shaft. The second driving gear meshes with the first driven rack, and the second driven gear meshes with the second driven rack. The first driven rack and the second driven rack are respectively connected to two ends of the moving direction of the stripping plate. The second driving motor is used to drive the stripping plate to move.

5. The FPC peeling device according to claim 4, wherein: The stripping assembly further includes a lifting cylinder provided on the frame. The output end of the lifting cylinder is connected to the receiving plate. The lifting cylinder is used to drive the receiving plate to lift.

6. The FPC peeling device according to claim 1, wherein: The first upper clamping plate, the first lower clamping plate, the second upper clamping plate and the second lower clamping plate are all provided with sawteeth.

7. The FPC peeling device according to claim 6, characterized in that: It further includes a feeding assembly. The feeding assembly includes a carrier for placing the tape, a moving module and a first suction head provided at the output end of the moving module. The moving module is used to drive the first suction head to transfer the tape to the stripping plate.

8. The FPC peeling device according to claim 1, characterized in that: It further includes a conveying module and a transfer module. The conveying module is provided with a carrier plate for carrying the FPC. The conveying module is used to convey the FPC to the next process. The output end of the transfer module is provided with a suction cup. The transfer module is used to drive the suction cup to transfer the FPC from the receiving plate to the carrier plate.

9. The FPC peeling device according to claim 1, wherein: It further includes a CCD industrial camera. The CCD industrial camera is located between the conveying module and the receiving plate, and the CCD industrial camera faces the suction cup. The CCD industrial camera is used to detect the glue on the FPC.

10. The FPC peeling device according to claim 9, wherein: It further includes an air knife and a centrifugal fan. The air inlet of the air knife is communicated with the centrifugal fan. The air knife is provided on the suction cup. The air outlet of the air knife corresponds to the carrier plate. The air knife is used to blow off the excess glue on the FPC.

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