Plastic carrier tape winding device with tension adjusting function

Abstract

The invention discloses a plastic carrier tape winding device with a tension adjusting function, and relates to the technical field of plastic carrier tape winding, the plastic carrier tape winding device comprises a shell, a control screen, a back plate, a detection device, an adjusting device and a compensation device, the detection device can automatically detect the tension change of the surface of a plastic carrier tape in the winding process, and the adjusting device can adjust the tension change of the surface of the plastic carrier tape. When the detection device detects that the tension is too large or too small, the adjusting device can automatically adjust the rotating speed of the winding drum to enable the linear speed of the winding drum to be matched with the conveying speed of the carrier tape, so that dynamic control over the surface tension of the carrier tape is achieved, and the problems of tensile deformation, loosening or breakage of the carrier tape caused by unstable tension are solved; the compensation device can sense the change of the winding diameter of the winding drum through a mechanical structure in the winding process, and when the winding diameter is increased, the pretightening force of the spring is automatically increased, so that the interference of the change of the winding diameter on tension detection can be effectively removed, the tension detection result is more accurate, and the tension adjustment is more accurate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plastic tape winding, in particular to a plastic tape winding device with tension adjustment function. BACKGROUND

[0002] The plastic tape is a kind of bearing material widely used in the automatic packaging and conveying of electronic components, which is usually punched into a continuous belt structure by a plastic film, and uniform component cavities are formed on the surface for bearing resistors, capacitors and other components. After the production of the plastic tape is completed, it needs to be wound for subsequent storage, transportation and use on the automatic placement machine.

[0003] The existing plastic tape winding device has some problems: during the winding process of the plastic tape, due to the change of surface tension, the problems of loose winding, too tight or breakage are easy to occur, which affects the winding quality and subsequent use of the tape. SUMMARY

[0004] The technical problem to be solved by the present application is that the change of surface tension of the plastic tape affects the winding quality, and a plastic tape winding device with tension adjustment function is provided.

[0005] To solve the above technical problems, the present application provides the following technical scheme: the plastic tape winding device comprises a shell, a control screen is installed on the outer side of the shell, an inlet is arranged above the control screen, a back plate is installed inside the shell, a partition plate is installed on the back plate, a base is installed on one side of the partition plate, a detection device is installed on the base, an adjustment device is installed on the other side of the partition plate, a winding roller is installed above the adjustment device, a winding drum is installed on the winding roller, a compensation device is installed above the winding roller, the adjustment device, the winding roller and the compensation device are installed on the back plate, and the control screen is connected to a control system.

[0006] The detection device comprises a support frame installed on the base, a side plate connected to the upper side of the support frame, a sliding groove arranged on the side plate, a U-shaped plate slidably installed in the sliding groove, a floating roller rotatably installed on the U-shaped plate, a transmission device installed below the U-shaped plate, and a floating device installed on one side of the transmission device. When the tension of the plastic tape on the floating roller increases, the inlet tension and the outlet tension form a resultant force on the floating roller, the resultant force overcomes the elastic force of the pre-pressed spring, and the floating roller is pressed towards the support frame. The floating roller drives the U-shaped plate to slide in the sliding groove, and the U-shaped plate slides towards the support frame.

[0007] The transmission device comprises a connecting column, which is installed below the U-shaped plate and slides on the support frame; a connecting rod, which is rotatably installed on the connecting column; a support column, which is installed on the base and around which the connecting rod rotates; a push rod, which is rotatably installed on one side of the connecting rod; a push plate, which is installed on one side of the push rod; a hydraulic cylinder, which is installed at the bottom of the shell and in which the push plate slides; and an oil outlet pipe, which is installed on the outside of the hydraulic cylinder.

[0008] The floating device comprises a sliding block, which slides on the support frame; a pre-compression spring, which is installed above the sliding block and on one side of the U-shaped plate; a first wedge-shaped block, which is connected below the sliding block; a lead screw, which is rotatably installed on the back plate; a first gear, which is installed at one end of the lead screw; a first belt, which is installed on the outside of the first gear; a second wedge-shaped block, which is slidably installed on the lead screw and cooperates with the first wedge-shaped block.

[0009] The adjusting device comprises a motor, which is installed on one side of the back plate; a first rotating shaft, which is installed on the output shaft of the motor; a first fixed cone disc, which is installed on the first rotating shaft; a variable diameter device, which is slidably installed on the first rotating shaft; a second rotating shaft, which is rotatably installed on the back plate and located on one side of the first rotating shaft; a second fixed cone disc, which is installed on the second rotating shaft; a support plate, which is installed on the second fixed cone disc; a second gear, which is installed on the second rotating shaft; a second belt, which is installed on the outside of the second gear; a third gear, which is installed on one side of the second belt; and a transmission belt, which is installed on the first fixed cone disc, the second fixed cone disc, and the variable diameter device.

[0010] The variable diameter device comprises a first movable cone, which is slidingly installed on a first rotating shaft, one side of the first rotating shaft is provided with an oil inlet cylinder, the first movable cone slides on the oil inlet cylinder, a first supporting ring is rotatably installed on the first movable cone, one side of the first supporting ring is provided with a connecting plate, one side of the connecting plate is provided with a second supporting ring, a second movable cone is rotatably installed on the second supporting ring, the second movable cone slides on a second rotating shaft, and a transmission belt is located on the conical surface of the first fixed cone and the first movable cone. When the tension increases, the first movable cone moves away from the first fixed cone, the V-shaped groove formed between the first movable cone and the first fixed cone increases, forcing the transmission belt to move towards the bottom of the V-shaped groove, the diameter of the transmission belt at this position becomes larger, the first movable cone drives the first supporting ring to move away from the first fixed cone, the first supporting ring drives the connecting plate to move away from the first fixed cone, the connecting plate drives the second supporting ring to move towards the second fixed cone, the second supporting ring drives the second movable cone to move towards the first fixed cone, the V-shaped groove formed between the second movable cone and the second fixed cone decreases, forcing the transmission belt to move away from the bottom of the V-shaped groove, the diameter of the transmission belt at this position becomes smaller, the rotating speed of the second rotating shaft decreases, thereby the rotating speed of the winding roller decreases, the linear speed of the winding roller decreases, and the surface tension of the plastic carrier tape is adjusted.

[0011] The oil inlet cylinder comprises an outer shell, which is installed on one side of the first rotating shaft, the first movable cone slides on the outer shell, the inside of the outer shell is provided with an oil inlet cavity, the oil inlet cavity is provided with a connecting cavity, a change cavity is arranged between the first movable cone and the outer shell, the oil inlet cavity and the oil outlet pipe are connected through a pipeline, and the connecting cavity is communicated with the change cavity. When the tension increases, the hydraulic oil in the change cavity is drawn into the connecting cavity, and then into the hydraulic cylinder through the oil inlet cavity, the volume of the change cavity decreases, and the first movable cone moves away from the first fixed cone.

[0012] The compensation device comprises a mounting plate, a sliding plate slidingly installed on the mounting plate, a contact wheel installed below the sliding plate, an extension plate installed on one side of the sliding plate, a rack installed on one side of the extension plate, a third rotating shaft rotatably installed on the back plate, a fourth gear installed on one side of the third rotating shaft, and the fourth gear is engaged with the rack. When the winding diameter of the plastic carrier tape gradually increases, the plastic carrier tape drives the contact wheel to move towards the mounting plate, the contact wheel drives the extension plate to move towards the mounting plate, the extension plate drives the rack to move towards the mounting plate, the rack drives the fourth gear to rotate, the fourth gear drives the third rotating shaft to rotate, the third rotating shaft drives the fifth gear to rotate, the fifth gear drives the first belt to rotate, the first belt drives the first gear to rotate, and the first gear drives the lead screw to rotate.

[0013] The other side of the third rotating shaft is provided with a fifth gear, and the fifth gear is installed on one side of the first belt.

[0014] Two threads with opposite rotation directions are arranged on the screw rod.

[0015] Compared with the prior art, the application has the following advantages: 1. The tension adjusting technology is used in the application, the change of the surface tension of the plastic carrier tape can be automatically detected during the winding process, when the detected tension is too large or too small, the rotating speed of the winding drum is automatically adjusted, the linear speed of the winding drum is matched with the conveying speed of the carrier tape, so that the dynamic control of the surface tension of the carrier tape is realized, the problems of stretching deformation, loose winding or rupture of the carrier tape caused by unstable tension are avoided; 2. The winding diameter compensation technology is used in the application, the change of the winding diameter of the winding drum is sensed through the mechanical structure during the winding process, when the winding diameter increases, the pre-tightening force of the spring is automatically increased, the spring generates greater reaction force to offset the tension increase caused by the increase of the winding diameter, so that the real-time compensation of the tension is realized, the interference of the winding diameter change on the tension detection can be effectively removed, the tension detection result is more accurate, and the tension adjustment is more accurate. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an internal schematic view of the plastic carrier tape winding device of the application; Figure 2 It is a perspective view of the detection device of the application; Figure 3 It is a perspective view of the transmission device of the application; Figure 4 It is a perspective view of the floating device of the application; Figure 5 It is a perspective view of the adjusting device of the application; Figure 6 It is a perspective view of the diameter changing device of the application; Figure 7 It is a sectional view of the oil inlet cylinder and the first movable cone disc of the application; Figure 8 It is a perspective view of the compensation device of the application.

[0017] In the diagram: 1. Housing; 2. Control panel; 3. Back panel; 4. Detection device; 41. Support frame; 42. Side plate; 43. U-shaped plate; 44. Floating roller; 45. Transmission device; 451. Connecting column; 452. Connecting rod; 453. Push rod; 454. Hydraulic cylinder; 455. Oil outlet pipe; 456. Support column; 46. Floating device; 461. Slider; 462. Preload spring; 463. First wedge block; 464. Second wedge block; 465. Lead screw; 466. First gear; 467. First belt; 5. Adjustment device; 51. Motor; 52. First fixed cone 53. Diameter changing device; 531. First moving conical disc; 532. Oil inlet cylinder; 5321. Outer shell; 5322. Oil inlet chamber; 5323. Connecting chamber; 5334. Changing chamber; 533. First support ring; 534. Connecting plate; 535. Second support ring; 536. Second moving conical disc; 54. Second fixed conical disc; 56. Support plate; 57. Second gear; 58. Second belt; 59. Transmission belt; 6. Compensation device; 61. Mounting plate; 62. Slide plate; 63. Contact wheel; 64. Extension plate; 65. Rack; 66. Fourth gear; 7. Rewinding drum. Detailed Implementation

[0018] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example: Figures 1-8 As shown, the present invention provides a technical solution for a plastic carrier tape winding device, which includes a housing 1, a control screen 2 mounted on the outside of the housing 1, a feed inlet above the control screen 2, a back plate 3 mounted inside the housing 1, a partition mounted on the back plate 3, a base mounted on one side of the partition, a detection device 4 mounted on the base, an adjustment device 5 mounted on the other side of the partition, a winding roller mounted above the adjustment device 5, a winding drum 7 mounted on the winding roller, and a compensation device 6 mounted above the winding roller. The adjustment device 5, the winding roller, and the compensation device 6 are mounted on the back plate 3, and the control screen 2 is connected to a control system.

[0020] The detection device 4 includes a support frame 41 mounted on a base. A side plate 42 is connected above the support frame 41, and a sliding groove is provided on the side plate 42. A U-shaped plate 43 is slidably installed in the sliding groove, and a floating roller 44 is rotatably mounted on the U-shaped plate 43. A transmission device 45 is installed below the U-shaped plate 43, and a floating device 46 is installed on one side of the transmission device 45. When the tension of the plastic carrier belt on the floating roller 44 increases, the inlet tension and the outlet tension form a resultant force on the floating roller 44. The resultant force overcomes the elastic force of the preload spring 462, pressing the floating roller 44 towards the support frame 41. The floating roller 44 drives the U-shaped plate 43 to slide in the sliding groove, and the U-shaped plate 43 slides towards the support frame 41.

[0021] The transmission device 45 comprises a connecting column 451 installed below the U-shaped plate 43, the connecting column 451 sliding on the support frame 41, a connecting rod 452 rotatably installed on the connecting column 451, a supporting column 456 installed on the base, the connecting rod 452 rotating around the supporting column 456, a push rod 453 rotatably installed on one side of the connecting rod 452, a push plate installed on one side of the push rod 453, a hydraulic cylinder 454 installed at the bottom of the shell 1, the push plate sliding in the hydraulic cylinder 454, an oil outlet pipe 455 installed on the outside of the hydraulic cylinder 454. When the tension increases, the U-shaped plate 43 drives the connecting column 451 to slide towards the support frame 41, the connecting column 451 drives the connecting rod 452 to rotate around the supporting column 456, the connecting rod 452 drives the push rod 453 to move towards the floating roller 44, the push rod 453 drives the push plate to move towards the floating roller 44, and the hydraulic oil in the hydraulic cylinder 454 is drawn out of the oil outlet pipe 455.

[0022] The floating device 46 comprises a sliding block 461 sliding on the support frame 41, a pre-compression spring 462 installed above the sliding block 461, the pre-compression spring 462 being installed on one side of the U-shaped plate 43, a first wedge block 463 connected below the sliding block 461, a lead screw 465 rotatably installed on the back plate 3, two threads with opposite rotation directions being provided on the lead screw 465, a first gear wheel 466 installed on one end of the lead screw 465, a first belt 467 installed on the outside of the first gear wheel 466, a second wedge block 464 slidingly installed on the lead screw 465, the second wedge block 464 cooperating with the first wedge block 463. When the lead screw 465 rotates, the lead screw 465 drives the two second wedge blocks 464 to move towards each other, the second wedge blocks 464 push the first wedge block 463 to move towards the floating roller 44, the first wedge block 463 drives the sliding block 461 to move towards the floating roller 44, the first wedge block 463 drives the pre-compression spring 462 to compress, increases the pre-tightening force of the spring, and makes the spring generate greater counterforce to offset the tension increase caused by the increase of the roll diameter, thereby realizing real-time compensation of the tension.

[0023] The adjusting device 5 comprises a motor 51 installed on one side of the back plate 3, a first rotating shaft installed on an output shaft of the motor 51, a first fixed cone disc 52 installed on the first rotating shaft, a variable diameter device 53 slidingly installed on the first rotating shaft, a second rotating shaft rotatingly installed on the back plate 3 and located on one side of the first rotating shaft, a second fixed cone disc 54 installed on the second rotating shaft, a supporting plate 56 installed on the second fixed cone disc 54, a second gear 57 installed on the second rotating shaft, a second belt 58 installed on the outer side of the second gear 57, a third gear installed on one side of the second belt 58 and installed on the winding roller, and a transmission belt 59 installed on the first fixed cone disc 52, the second fixed cone disc 54 and the variable diameter device 53. The motor 51 is connected to a control system. The motor 51 is controlled to rotate, the motor 51 drives the first rotating shaft to rotate, the first rotating shaft drives the first fixed cone disc 52 and the first movable cone disc 531 to rotate, the first fixed cone disc 52 and the first movable cone disc 531 drive the transmission belt 59 to rotate, the transmission belt 59 drives the second fixed cone disc 54 and the second movable cone disc 536 to rotate, the second fixed cone disc 54 and the second movable cone disc 536 drive the second rotating shaft to rotate, the second rotating shaft drives the second gear 57 to rotate, the second gear 57 drives the second belt 58 to rotate, the second belt 58 drives the third gear to rotate, the third gear drives the winding roller to rotate, the winding roller drives the winding drum 7 to rotate, and winding is performed.

[0024] The variable-diameter device 53 comprises a first movable cone 531 which is slidingly installed on a first rotating shaft, one side of the first rotating shaft is installed with an oil inlet cylinder 532, the first movable cone 531 slides on the oil inlet cylinder 532, the first movable cone 531 is rotatably installed with a first supporting ring 533, one side of the first supporting ring 533 is installed with a connecting plate 534, one side of the connecting plate 534 is installed with a second supporting ring 535, the second supporting ring 535 is rotatably installed with a second movable cone 536, the second movable cone 536 slides on a second rotating shaft, and the transmission belt 59 is located on the taper surfaces of the first fixed cone 52 and the first movable cone 531. When the tension increases, the first movable cone 531 moves away from the first fixed cone 52, the V-shaped groove formed between the first movable cone 531 and the first fixed cone 52 increases, forcing the transmission belt 59 to move towards the bottom of the V-shaped groove, the diameter of the transmission belt 59 at this position becomes larger, the first movable cone 531 drives the first supporting ring 533 to move away from the first fixed cone 52, the first supporting ring 533 drives the connecting plate 534 to move away from the first fixed cone 52, the connecting plate 534 drives the second supporting ring 535 to move towards the second fixed cone 54, the second supporting ring 535 drives the second movable cone 536 to move towards the first fixed cone 52, the V-shaped groove formed between the second movable cone 536 and the second fixed cone 54 decreases, forcing the transmission belt 59 to move away from the bottom of the V-shaped groove, the diameter of the transmission belt 59 at this position becomes smaller, the rotating speed of the second rotating shaft decreases, thereby the rotating speed of the winding roller decreases, the linear speed of the winding roller decreases, and the surface tension of the plastic carrier tape is adjusted.

[0025] The oil inlet cylinder 532 comprises an outer shell 5321 which is installed on one side of the first rotating shaft, the first movable cone 531 slides on the outer shell 5321, the inside of the outer shell 5321 is provided with an oil inlet cavity 5322, the oil inlet cavity 5322 is provided with a connecting cavity 5323, a conversion cavity 5334 is arranged between the first movable cone 531 and the outer shell 5321, the oil inlet cavity 5322 and the oil outlet pipe 455 are connected by a pipeline, and the connecting cavity 5323 communicates with the conversion cavity 5334. When the tension increases, the hydraulic oil in the conversion cavity 5334 is drawn into the connecting cavity 5323, and then into the hydraulic cylinder 454 through the oil inlet cavity 5322, the volume of the conversion cavity 5334 decreases, and the first movable cone 531 moves away from the first fixed cone 52.

[0026] The compensation device 6 comprises a mounting plate 61, a sliding plate 62 slidably mounted on the mounting plate 61, a contact wheel 63 mounted below the sliding plate 62, an extension plate 64 mounted on one side of the sliding plate 62, a rack 65 mounted on one side of the extension plate 64, a third rotating shaft rotatably mounted on the back plate 3, a fourth gear 66 mounted on one side of the third rotating shaft, the fourth gear 66 being engaged with the rack 65, a fifth gear mounted on the other side of the third rotating shaft, and the fifth gear being mounted on one side of the first belt 467. When the diameter of the plastic carrier tape gradually increases, the plastic carrier tape pushes the contact wheel 63 to move towards the mounting plate 61, the contact wheel 63 drives the extension plate 64 to move towards the mounting plate 61, the extension plate 64 drives the rack 65 to move towards the mounting plate 61, the rack 65 drives the fourth gear 66 to rotate, the fourth gear 66 drives the third rotating shaft to rotate, the third rotating shaft drives the fifth gear to rotate, the fifth gear drives the first belt 467 to rotate, the first belt 467 drives the first gear 466 to rotate, and the first gear 466 drives the lead screw 465 to rotate.

[0027] Working principle of the present application: When winding, the motor 51 is controlled to rotate, the motor 51 drives the first rotating shaft to rotate, the first rotating shaft drives the first fixed cone disc 52 and the first movable cone disc 531 to rotate, the rotation of the first fixed cone disc 52 and the first movable cone disc 531 drives the transmission belt 59 to rotate, the transmission belt 59 drives the second fixed cone disc 54 and the second movable cone disc 536 to rotate, the rotation of the second fixed cone disc 54 and the second movable cone disc 536 drives the second rotating shaft to rotate, the second rotating shaft drives the second gear 57 to rotate, the second gear 57 drives the second belt 58 to rotate, the second belt 58 drives the third gear to rotate, the third gear drives the winding roller to rotate, the winding roller drives the winding drum 7 to rotate, the plastic carrier tape enters from the inlet, passes through the floating roller 44, and is finally wound on the winding drum 7.

[0028] When the tension of the plastic carrier tape on the floating roller 44 increases, the inlet tension and the outlet tension form a resultant force on the floating roller 44, the resultant force overcomes the elastic force of the pre-pressing spring 462, and the floating roller 44 is pressed towards the support frame 41, the floating roller 44 drives the U-shaped plate 43 to slide in the sliding groove, the U-shaped plate 43 slides towards the support frame 41, the U-shaped plate 43 drives the connecting column 451 to slide towards the support frame 41, the connecting column 451 drives the connecting rod 452 to rotate around the support column 456, the connecting rod 452 drives the push rod 453 to move towards the floating roller 44, the push rod 453 drives the push plate to move towards the floating roller 44, the hydraulic oil in the hydraulic cylinder 454 is drawn out from the oil outlet pipe 455, the hydraulic oil in the conversion cavity 5334 is drawn into the connecting cavity 5323, and then is drawn into the hydraulic cylinder 454 through the oil inlet cavity 5322, the volume of the conversion cavity 5334 is reduced, the first movable cone disc 531 moves away from the first fixed cone disc 52.

[0029] When the first mobile cone 531 moves away from the first fixed cone 52, the V-shaped groove formed between the first mobile cone 531 and the first fixed cone 52 increases, forcing the transmission belt 59 to move towards the bottom of the V-shaped groove, where the diameter of the transmission belt 59 becomes larger, the first mobile cone 531 drives the first support ring 533 to move away from the first fixed cone 52, the first support ring 533 drives the connecting plate 534 to move away from the first fixed cone 52, the connecting plate 534 drives the second support ring 535 to move towards the second fixed cone 54, the second support ring 535 drives the second mobile cone 536 to move towards the first fixed cone 52, the V-shaped groove formed between the second mobile cone 536 and the second fixed cone 54 decreases, forcing the transmission belt 59 to move away from the bottom of the V-shaped groove, where the diameter of the transmission belt 59 becomes smaller, reducing the speed of the second rotating shaft, thereby reducing the speed of the winding roller, reducing the linear speed of the winding roller, thereby achieving the adjustment of the surface tension of the plastic carrier tape. When the tension of the plastic carrier tape on the pressure floating roller 44 decreases, the working process is opposite to the above-mentioned working process, finally the speed of the winding roller increases, and the linear speed of the winding roller increases.

[0030] When the diameter of the plastic carrier tape gradually increases, the plastic carrier tape pushes the contact wheel 63 to move towards the mounting plate 61, the contact wheel 63 drives the extension plate 64 to move towards the mounting plate 61, the extension plate 64 drives the rack 65 to move towards the mounting plate 61, the rack 65 drives the fourth gear 66 to rotate, the fourth gear 66 drives the third rotating shaft to rotate, the third rotating shaft drives the fifth gear to rotate, the fifth gear drives the first belt 467 to rotate, the first belt 467 drives the first gear 466 to rotate, the first gear 466 drives the lead screw 465 to rotate, the lead screw 465 drives the two second wedge blocks 464 to move towards each other, the second wedge blocks 464 push the first wedge block 463 to move towards the floating roller 44, the first wedge block 463 drives the sliding block 461 to move towards the floating roller 44, the first wedge block 463 drives the pre-compression spring 462 to compress, increasing the pre-tightening force of the spring, so that the spring generates greater reaction force to offset the tension increase caused by the increase of the diameter, thereby achieving real-time compensation of the tension.

[0031] Finally, it should be noted that the above-described only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing embodiments of the present application have been described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of protection of the present application.

Claims

1. A plastic carrier tape winding device with tension adjustment function, characterized in that: The plastic carrier tape winding device includes a shell (1), an operation screen (2) is installed on the outer side of the shell (1), a feeding port is arranged above the operation screen (2), a back plate (3) is installed in the shell (1), a partition plate is installed on the back plate (3), a base is installed on one side of the partition plate, a detection device (4) is installed on the base, an adjusting device (5) is installed on the other side of the partition plate, a winding roller is installed above the adjusting device (5), a winding drum (7) is installed on the winding roller, a compensation device (6) is installed above the winding roller, the adjusting device (5), the winding roller and the compensation device (6) are installed on the back plate (3), and the operation screen (2) is connected to a control system.

2. The plastic tape carrier roll device with tension adjustment function according to claim 1, wherein: The detection device (4) includes a support frame (41), the support frame (41) is installed on the base, a side plate (42) is connected above the support frame (41), a sliding groove is arranged on the side plate (42), a U-shaped plate (43) is slidably installed in the sliding groove, a floating roller (44) is rotatably installed on the U-shaped plate (43), a transmission device (45) is installed below the U-shaped plate (43), and a floating device (46) is installed on one side of the transmission device (45).

3. The plastic tape carrier roll device with tension adjustment function according to claim 2, wherein: The transmission device (45) includes a connecting column (451), the connecting column (451) is installed below the U-shaped plate (43) and slides on the support frame (41), a connecting rod (452) is rotatably installed on the connecting column (451), a supporting column (456) is installed on the base, the connecting rod (452) rotates around the supporting column (456), a push rod (453) is rotatably installed on one side of the connecting rod (452), a push plate is installed on one side of the push rod (453), a hydraulic cylinder (454) is installed at the bottom of the shell (1), the push plate slides in the hydraulic cylinder (454), and a oil outlet pipe (455) is installed on the outer side of the hydraulic cylinder (454).

4. The plastic tape carrier roll device with tension adjustment function according to claim 3, characterized in that: The floating device (46) includes a sliding block (461), the sliding block (461) slides on the support frame (41), a pre-pressing spring (462) is installed above the sliding block (461), one side of the pre-pressing spring (462) is installed on the U-shaped plate (43), a first wedge block (463) is connected below the sliding block (461), a lead screw (465) is rotatably installed on the back plate (3), a first gear (466) is installed at one end of the lead screw (465), a first belt (467) is installed on the outer side of the first gear (466), a second wedge block (464) is slidably installed on the lead screw (465), and the second wedge block (464) cooperates with the first wedge block (463).

5. The plastic tape carrier roll device with tension adjustment function according to claim 4, wherein: The adjusting device (5) includes a motor (51) installed on one side of the back plate (3), a first rotating shaft installed on the output shaft of the motor (51), a first fixed cone disc (52) installed on the first rotating shaft, a variable diameter device (53) slidingly installed on the first rotating shaft, a second rotating shaft rotatingly installed on the back plate (3), the second rotating shaft located on one side of the first rotating shaft, a second fixed cone disc (54) installed on the second rotating shaft, a supporting plate (56) installed on the second fixed cone disc (54), a second gear (57) installed on the second rotating shaft, a second belt (58) installed on the outer side of the second gear (57), a third gear installed on one side of the second belt (58), the third gear installed on a winding roller, the first fixed cone disc (52), the second fixed cone disc (54) and the variable diameter device (53) are provided with a transmission belt (59), and the motor (51) is connected to a control system.

6. The plastic tape carrier roll device with tension adjustment function according to claim 5, wherein: The variable diameter device (53) includes a first movable cone disc (531) slidingly installed on the first rotating shaft, an oil inlet cylinder (532) installed on one side of the first rotating shaft, the first movable cone disc (531) sliding on the oil inlet cylinder (532), a first supporting ring (533) rotatingly installed on the first movable cone disc (531), a connecting plate (534) installed on one side of the first supporting ring (533), a second supporting ring (535) installed on one side of the connecting plate (534), a second movable cone disc (536) rotatingly installed on the second supporting ring (535), the second movable cone disc (536) sliding on the second rotating shaft, and the transmission belt (59) located on the conical surfaces of the first fixed cone disc (52) and the first movable cone disc (531).

7. The plastic tape carrier roll device with tension adjustment function according to claim 6, wherein: The oil inlet cylinder (532) includes a shell (5321) installed on one side of the first rotating shaft, the first movable cone disc (531) sliding on the shell (5321), an oil inlet cavity (5322) formed in the shell (5321), a connecting cavity (5323) formed on the oil inlet cavity (5322), a conversion cavity (5334) formed between the first movable cone disc (531) and the shell (5321), the oil inlet cavity (5322) connected with an oil outlet pipe (455) through a pipeline, and the connecting cavity (5323) communicated with the conversion cavity (5334).

8. The plastic tape carrier roll device with tension adjustment function according to claim 7, wherein: The compensation device (6) includes a mounting plate (61), a sliding plate (62) slidingly installed on the mounting plate (61), a contact wheel (63) installed below the sliding plate (62), an extension plate (64) installed on one side of the sliding plate (62), a rack (65) installed on one side of the extension plate (64), a third rotating shaft rotatingly installed on the back plate (3), a fourth gear (66) installed on one side of the third rotating shaft, and the fourth gear (66) engaged with the rack (65).

9. The plastic tape carrier roll device with tension adjustment function according to claim 8, wherein: The other side of the third rotating shaft is provided with a fifth gear, and the fifth gear is installed on one side of the first belt (467).

10. The plastic tape carrier roll device with tension adjustment function according to claim 9, wherein: The screw rod (465) is provided with two threads with opposite rotation directions.

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