Transmission module and sheet winding and covering machine

Abstract

The utility model discloses a conveying module and a sheet winding and covering machine. The conveying module comprises a rack, a belt conveying assembly and an air suction assembly. The belt conveying assembly is installed on the machine frame and used for conveying sheet materials. The belt conveying assembly comprises a rotating shaft, a belt and a driving motor. The two rotating shafts are installed on the rack in parallel in a spaced mode, and the driving motor is connected with one rotating shaft. The belt sleeves the peripheries of the two rotating shafts, and a plurality of vent holes penetrating through the upper surface and the lower surface of the belt are formed in the belt. The air suction assembly comprises an air suction box and a negative pressure fan, the air suction box is installed in a gap between the upper belt and the lower belt, a plurality of ventilation openings are formed in the upper surface of the air suction box, and an air suction opening is further formed in the air suction box; the negative pressure fan is connected with the air suction opening so that negative pressure can be formed in the air suction box, and the sheet materials can be stably adsorbed to the upper surface of the belt through the vent holes and the ventilation opening. According to the conveying module, through the innovative design of the conveying module, the problem that in a traditional sheet winding and covering machine, sheet materials are prone to deviation and warping in the conveying process is effectively solved.

Description

Technical Field

[0001] This application relates to the field of FPC manufacturing technology, and more specifically, to a transmission module and a sheet winding machine. Background Technology

[0002] With the rapid development of technology, flexible printed circuit board (FPC) manufacturing technology has become a research hotspot. Although existing technologies have made some progress in FPC production, deviation and warping during sheet material transport remain a major technical bottleneck. For example, due to the flexibility and thinness of the sheets, deviation and warping are prone to occur during sheet material transport, which not only affects production efficiency but may also lead to a decline in product quality. Furthermore, existing sheet material winding machines also suffer from uneven winding and inaccurate tension control when handling these sheets, limiting the further development of FPC production. Therefore, a new type of transport module and sheet material winding machine is needed to solve these problems. Utility Model Content

[0003] This application provides a transmission module for conveying sheet material in a sheet winding machine. The transmission module includes a belt conveyor assembly and a suction assembly. The belt conveyor assembly is mounted on a frame and is used to convey the sheet material. The belt conveyor assembly includes a rotating shaft, a belt, and a drive motor. Two rotating shafts are mounted parallel to each other on the frame, and the drive motor is connected to one of the rotating shafts. The belt is sleeved on the outer periphery of the two rotating shafts, and multiple ventilation holes are formed on the belt, penetrating its upper and lower surfaces. The suction assembly includes a suction box and a negative pressure fan. The suction box is installed in the gap between the upper and lower belts, and multiple air vents are formed on the upper surface of the suction box. The suction box also has an air intake. The negative pressure fan is connected to the air intake to create a negative pressure inside the suction box, and the sheet material is smoothly adsorbed onto the upper surface of the belt through the air vents and the air intake.

[0004] In some embodiments, the diameter of the vent is less than or equal to the diameter of the air inlet.

[0005] In some embodiments, along the belt width direction, the width of the plurality of vent forming regions is less than or equal to the width of the belt, but greater than or equal to the width of the plurality of vent forming regions.

[0006] In some embodiments, the width of the suction box is greater than the width of the belt, and the suction port is located below the empty area between the suction box and the belt.

[0007] In some embodiments, the suction box has empty areas on both sides of the belt, and an air intake is provided below each empty area.

[0008] In some embodiments, the two air intakes are arranged diagonally.

[0009] In some embodiments, the frame includes a mounting box, the negative pressure fan is installed inside the suction box, and the suction box has a permeable mesh corresponding to the air outlet of the negative pressure fan.

[0010] In some embodiments, the transmission module further includes a plurality of pressure rollers located on the uppermost surface of the belt for pressing the sheet material.

[0011] In some embodiments, the rotating shaft is disposed on the vertical center plane of the rotating shaft.

[0012] This application also provides a sheet winding machine for conveying sheet material, the sheet winding machine including the conveying module described in any one of the above.

[0013] This application, through an innovative transmission module design, effectively overcomes the problems of sheet material deviation and warping during transmission in traditional sheet material wrapping machines. Compared with existing technologies, the belt conveyor assembly of this application, combined with a suction assembly, utilizes the principle of negative pressure adsorption. Through the air vents on the belt and the air outlets in the suction box, the sheet material is stably adsorbed onto the belt surface, which not only improves the stability and accuracy of sheet material transmission but also ensures the flatness and consistency of the sheet material during transmission. These improvements significantly enhance the production efficiency and product quality of the sheet material wrapping machine, reduce the scrap rate caused by sheet material deviation or warping, and provide more reliable technical support for flexible printed circuit board (FPC) production.

[0014] Additional aspects and advantages of embodiments of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of this application. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0017] Figure 2 This is a schematic diagram of the overall structure of an embodiment of this application from another perspective;

[0018] Figure 3 yes Figure 2 Enlarged view of section A;

[0019] Figure 4 This is a half-sectional schematic diagram of the overall structure of the embodiment of this application;

[0020] Figure 5This is a schematic diagram of the transmission module in the embodiment of this application;

[0021] Figure 6 This is an exploded structural diagram of the pressing module in the embodiment of this application;

[0022] Figure 7 This is a schematic diagram of the tool module in the embodiment of this application.

[0023] Key component symbols: Sheet wrapping machine 100, Frame 10, PLC control room 11, Mounting box 12, Feeding module 20, Feeding platform 21, Fixing rod 211, Baffle 22, Adjusting plate 221, Adjusting groove 222, Transmission module 30, Belt conveyor assembly 31, Rotary shaft 311, Belt 312, Vent hole 313, Drive motor 314, Pressure roller 315, Suction assembly 32, Suction box 321, Vent 323, Suction outlet 3 24. Negative pressure fan 322. Pressing module 40. Mounting block 41. Guide groove 411. Drive roller 42. Power motor 43. Driven roller 44. Adjusting cylinder 45. Moving block 451. Tool module 50. Blade 51. Connecting shaft 511. Connecting rod 52. Connecting port 521. Crack 522. Extrusion part 523. Fixing part 524. Screw hole 525. Screw 526. Threaded rod 53. Unwinding module 60. Machine base 61. Air shaft 62. Detailed Implementation

[0024] The embodiments of this application will be further described below with reference to the accompanying drawings. The same or similar reference numerals in the drawings denote the same or similar elements or elements having the same or similar functions throughout.

[0025] Furthermore, the embodiments of this application described below in conjunction with the accompanying drawings are exemplary and are only used to explain the embodiments of this application, and should not be construed as limiting this application.

[0026] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0027] Please see Figure 1 , Figure 2 and Figure 5This application provides a transmission module 30 for transmitting sheet material in a sheet winding machine 100. The transmission module 30 includes a belt conveyor assembly 31 and a suction assembly 32. The belt conveyor assembly 31 is mounted on a frame 10 for transmitting sheet material. The belt conveyor assembly 31 includes a rotating shaft 311, a belt 312, and a drive motor. Two rotating shafts 311 are mounted parallel and spaced apart on the frame 10, and the drive motor 314 is connected to one of the rotating shafts 311. The belt 312 is sleeved on the outer periphery of the two rotating shafts 311, and a plurality of ventilation holes 313 are formed on the belt 312, penetrating the upper and lower surfaces of the belt 312. The suction assembly 32 includes a suction box 321 and a negative pressure fan 322. The suction box 321 is installed in the gap between the upper belt and the lower belt. The upper surface of the suction box 321 is provided with multiple air vents 323 and a suction port 324. The negative pressure fan 322 is connected to the suction port 324 to create a negative pressure inside the suction box 321 and to stably adsorb the sheet material onto the upper surface of the belt 312 through the vent 313 and the air vent 323.

[0028] This application, through an innovative design of the 30-block transfer module, effectively overcomes the problems of sheet material deviation and warping during transfer in traditional sheet material wrapping machines 100. Compared with existing technologies, the belt conveyor assembly 31 of this application, combined with the suction assembly 32, utilizes the principle of negative pressure adsorption. Through the ventilation holes 313 on the belt 312 and the air vents 323 of the suction box, the sheet material is stably adsorbed onto the surface of the belt 312, which not only improves the stability and accuracy of sheet material transfer but also achieves flatness and consistency of the sheet material during the transfer process. These improvements significantly enhance the production efficiency and product quality of the sheet material wrapping machine 100, reduce the scrap rate caused by sheet material deviation or warping, and provide more reliable technical support for flexible printed circuit board (FPC) production.

[0029] Specifically, please refer to Figure 1 and Figure 2 The sheet winding machine 100 includes a frame 10, a feeding module 20, a transmission module 30, a pressing module 40, a cutting tool module 50, and an unwinding module 60. A PLC control box 11 and a mounting box 12 are mounted on the frame 10. The frame 10 is divided along its thickness to form two chambers: the front chamber houses the PLC control box 11, and the rear chamber houses the mounting box 12.

[0030] Please combine Figure 3 and Figure 4The feeding module 20 is mounted on the frame 10. The feeding module 20 includes a feeding platform 21 and baffles 22. The feeding platform 21 is used to place and transport sheet materials, and the baffles 22 are mounted on the feeding platform 21. Two parallel baffles 22 are installed on both sides of the sheet material transport path to prevent the sheet materials from deviating from the predetermined track. An adjusting plate 221, L-shaped, is provided on the side of the baffle 22 facing away from the sheet material. One surface of the adjusting plate 221 is fixed to the surface of the baffle 22, and the other surface of the adjusting plate 221 is in contact with the upper surface of the feeding platform 21, perpendicular to the baffle 22. An adjusting groove 222 is provided on the adjusting plate 221 in a direction perpendicular to the baffle 22, penetrating both the upper and lower surfaces of the adjusting plate 221. The loading platform 21 has a fixing rod 211 at a position corresponding to the adjusting groove 222. The fixing rod 211 passes through the adjusting groove 222 and has threads. Tightening a fixing nut on the fixing rod 211 can fix the adjusting plate 221 in the designated position. In the embodiment of this application, each baffle 22 is provided with two adjusting plates 221, and each adjusting plate 221 has two adjusting grooves 222. The number of fixing rods 211 is adapted to the number of adjusting grooves 222.

[0031] Please see Figure 2 , Figure 4 and Figure 5 The conveying module 30 is used to transport sheet materials along the sheet material transport path. The conveying module 30 includes a belt conveyor assembly 312 and a suction assembly 32. The belt conveyor assembly 312 includes a rotating shaft 311, a belt 312, and a drive motor 314. Two rotating shafts 311 are arranged in parallel and spaced apart and mounted on the frame 10. The belt 312 is wrapped around the outer circumference of the two rotating shafts 311 and has multiple ventilation holes 313 penetrating the upper and lower surfaces. The drive motor 314 is mounted on the frame 10 and is connected to one of the rotating shafts 311. The rotation of the drive motor 314 drives the rotating shaft 311 to rotate, thereby driving the belt 312 to rotate.

[0032] The suction assembly 32 includes a suction box 321 and a negative pressure fan 322. The suction box 321 is installed between the upper and lower belts. A vent 323 is provided on the upper surface of the suction box 321, and the upper surface of the suction box 321 is in contact with the lower surface of the upper belt 312. The vent 323 communicates with a vent 313. The suction box 321 also has a suction port 324, which is connected to the negative pressure fan 322. When the fan is turned on, a negative pressure is created inside the suction box 321. As the sheet material passes over the belt 312, the sheet material is drawn in through the vent 323 and vent 313, ensuring it adheres tightly to the upper surface of the belt 312. This prevents the sheet material from shifting or warping, thus avoiding any impact on product yield. It should be noted that the air intake 324 and the air vent 323 can be arranged in a regular array or irregularly. The number of both can be the same or different, and there is no special limitation, as long as they can tightly suck up the sheet material. The negative pressure fan 322 is installed in the mounting box 12, and one side of the mounting box 12 has an air vent mesh 121 that corresponds to the air outlet of the negative pressure fan 322.

[0033] Furthermore, in order to enable the air intake 324 to generate suction perpendicular to the surface of the belt 312, the air intake 324 is located at the bottom of the air intake box 321. Specifically, the width of the air intake box 321 is greater than the width of the belt 312, and the air intake 324 is opened below the empty area of ​​the air intake box 321 where the width of the belt 312 is greater. The air intake 324 draws air downward, so that the air intake 324 generates suction perpendicular to the surface of the upper plate of the box.

[0034] Furthermore, the belt 312 is located in the middle of the suction box 321, and the suction box 321 has empty areas on both sides of the belt 312. Two suction ports 324 are provided, located in the empty areas on both sides of the suction box 321, and the suction ports 324 are arranged diagonally opposite each other. In the embodiment of this application, in order to facilitate the sheet material to adhere tightly to the upper surface of the belt 312, the diameter of the vent 313 is less than or equal to the diameter of the vent 323. Along the width direction of the belt 312, the width of the area formed by the multiple vents 323 is greater than or equal to the width of the area formed by the multiple vents 323, which is greater than the width of the sheet material.

[0035] Multiple pressure rollers 315 are arranged above the belt 312. The frame 10 has notches corresponding to the rotating shafts 311 at both ends of the pressure rollers 315. The pressure rollers 315 are used to prevent the sheet material from wrinkling or warping during transportation. Furthermore, to prevent the sheet material from warping at the edges, tangential pressure rollers 315 are arranged at positions perpendicular to the rotating shafts 311. The frame 10 is also equipped with a sensor (not shown) for checking whether the sheet material has reached the designated position on the belt 31. The sensor can be a photoelectric sensor, laser sensor, etc.

[0036] Please see Figure 2 , Figure 4 and Figure 6 The pressing module 40 is used to press the sheet material and release paper together. The pressing module 40 includes a mounting block 41 and a drive roller 42, a power motor 43, a driven roller 44, and an adjusting cylinder 45 mounted on the mounting block 41. The drive roller 42 and the driven roller 44 are mounted on the same vertical plane, and have the same diameter, with the driven roller 44 positioned above the drive roller 42. The power motor 43 is connected to the drive roller 42, driving it to rotate. The driven roller 44 is connected to the adjusting cylinder 45, causing it to move up and down.

[0037] Specifically, the mounting block 41 is provided with a vertical guide groove 411, and the output shaft of the adjusting cylinder 45 extends into the guide groove 411. A movable block 451 adapted to the guide groove 411 is provided on the output shaft of the adjusting cylinder 45. The upper end of the movable block 451 is connected to the output shaft, and the bottom end of the movable block 451 has a shaft hole 452 for the driven roller 44 to be rotatably mounted. The output shaft of the adjusting cylinder 45 drives the driven roller 44 to move downwards, causing the driven roller 44 to press against the driving roller 42, thereby achieving the compression of both the sheet material and the release paper as they pass through.

[0038] Please see Figure 2 , Figure 4 and Figure 7 The cutting tool module 50 is used to separate sheet material and release paper. The cutting tool module 50 includes a blade 51 and connecting rods 52. The blade 51 is rectangular and fixed to the frame 10 via the connecting rods 52. The cutting edge of the blade 51 extends from one plate surface to the opposite plate surface, with an inclination of [20°, 35°]. Connecting shafts 511 are formed by outward extension of the sides of the blade 51 at both ends. Two connecting rods 52 are respectively positioned on the sides of the blade 51 at both ends. One end of each connecting rod 52 has a connecting port 521 corresponding to the connecting shaft 511, into which the connecting shaft 511 extends to complete the rotatable connection. In one embodiment, to prevent the connecting rods 52 from affecting product separation during operation, a protrusion 512 is formed perpendicular to the plate surface at the end of 51 facing away from the cutting edge, and the connecting shaft 511 is located on the protrusion 512.

[0039] Furthermore, to facilitate adjustment of the blade 51's cutting edge angle relative to the horizontal plane, a slit 522 extends outward from the connection opening 521, penetrating the outer surface of the connecting rod 52. Specifically, the slit 522 extends from the connection opening 521 towards the center of the connecting rod 52, penetrating from the side adjacent to the blade 51 to the opposite side. Simultaneously, the end of the slit 522 bends and extends through a surface perpendicular to the side. The slit 522 divides the connecting rod 52 in its middle plane, forming a fixing part 524 and a pressing part 523. The pressing part 523 presses against the fixing part 524, reducing the diameter of the connection opening 521, thereby fixing the connecting rod 52 to the blade 51. When it is necessary to adjust the angle of the blade 51, the pressing part 523 can be released.

[0040] Furthermore, to facilitate the fixing of the connecting shaft 511, a screw hole 525 is provided on the fixing part 524. The screw hole 525 passes through the pressing part 523 and extends to the fixing part 524. By tightening the screw 526, the pressing part 523 can be pressed against the fixing part 524, thus completing the fixing of the connecting shaft 511 and the connecting rod 52. In the embodiment of this application, to prevent the screw 526 from protruding and easily scratching the product, a countersunk hole for nut accommodation is provided on the fixing part 524. The screw 526 is tightened with a hex wrench.

[0041] The connecting rod 52 is fixed to the frame 10 by a threaded rod 53. The connecting rod 52 has a slotted hole 527 extending through two opposing surfaces on its side facing the frame 10. The length of the slotted hole 527 is the same as the length of the connecting rod 52. The threaded rod 53 passes through the slotted hole 527 and is fixed to the frame 10. By adjusting the relative position of the threaded rod 53 in the slotted hole 527, the distance between the cutting tool 51 and the frame 10 can be adjusted, as can the angle of the entire tool module 50 relative to the horizontal plane.

[0042] Please see Figure 1 and Figure 2 An unwinding module 60 is mounted on the frame 10. The unwinding module 60 is used for winding or unwinding the sheet material. The unwinding module 60 includes a base 61 and an air shaft 62 mounted on the base 61. In the embodiments of this application, two unwinding modules 60 are provided above the pressing module 40, and one unwinding module 60 is provided below the pressing module 40.

[0043] In the description of this specification, the references to "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples" refer to specific features, structures, materials, or characteristics described in connection with the described embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the stated features. In the description of this application, "multiple" means at least two, such as two or three, unless otherwise explicitly specified.

[0045] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A transmission module for transmitting sheet material in a sheet winding machine, characterized in that, include: frame; A belt conveyor assembly is mounted on the frame for conveying sheet material. The belt conveyor assembly includes a rotating shaft, a belt, and a drive motor. Two rotating shafts are mounted parallel to each other on the frame, and the drive motor is connected to one of the rotating shafts. The belt is sleeved on the outer periphery of the two rotating shafts, and multiple ventilation holes are formed on the belt, penetrating the upper and lower surfaces of the belt. The suction assembly includes a suction box and a negative pressure fan. The suction box is installed in the gap between the upper and lower belts. The upper surface of the suction box has multiple vents and a suction port. The negative pressure fan is connected to the suction port to create a negative pressure inside the suction box and to smoothly adsorb the sheet material onto the upper surface of the belt through the vents and the air inlet.

2. The transmission module according to claim 1, characterized in that, The diameter of the vent hole is less than or equal to the diameter of the air inlet.

3. The transmission module according to claim 1, characterized in that, Along the belt width direction, the width of the plurality of vent forming areas is less than or equal to the width of the belt, but greater than or equal to the width of the plurality of vent forming areas.

4. The transmission module according to claim 1, characterized in that, The width of the suction box is greater than the width of the belt, and the suction port is located below the empty area between the suction box and the belt.

5. The transmission module according to claim 4, characterized in that, The suction box has empty areas on both sides of the belt, and each empty area has a suction port below it.

6. The transmission module according to claim 4, characterized in that, The two air intakes are arranged diagonally.

7. The transmission module according to claim 1, characterized in that, The frame includes a mounting box, the negative pressure fan is installed inside the suction box, and the suction box has a permeable mesh corresponding to the air outlet of the negative pressure fan.

8. The transmission module according to claim 1, characterized in that, The transmission module also includes multiple pressure rollers located on the uppermost surface of the belt for pressing the material into sheets.

9. The transmission module according to claim 8, characterized in that, The rotating shaft is provided on the vertical center plane of the rotating shaft.

10. A sheet winding machine for conveying sheet materials, characterized in that, The sheet winding machine includes a frame and a transmission module as described in any one of claims 1-9, wherein the transmission module is mounted on the frame.

Images