Automatic adjusting mechanism for edge trimmer and herringbone frame of film blowing machine

Abstract

The utility model discloses a kind of film blowing machine edge trimmer and herringbone frame automatic adjusting mechanism, including traction frame and PLC controller, herringbone frame is arranged inside traction frame, herringbone frame is composed of two symmetrical inclined herringbone board, two edge trimmers are arranged between herringbone board;Herringbone frame opening adjusting module for adjusting the opening degree between two herringbone boards is arranged on the traction frame;Edge trimmer adjusting module for adjusting the position of edge trimmer is detachably installed on the traction frame;The utility model is installed on traction frame by herringbone frame opening adjusting module and edge trimmer adjusting module split type, convenient for the replacement adjustment of structure, convenient to assemble, and by PLC controller and herringbone frame adjusting module and edge trimmer adjusting module connection, the automation adjustment of edge trimmer and herringbone frame is realized, and regulation efficiency is obviously improved.

Description

Technical Field

[0001] This utility model relates to the field of blown film machine technology, specifically to a blown film machine edge inserter and an automatic adjustment mechanism for the herringbone frame. Background Technology

[0002] When a blown film machine is working, it usually requires an edge inserter and a herringbone frame to fold the film fabric and guide it onto the winding roller for winding. The edge inserter and herringbone frame need to be adjusted according to actual usage requirements. However, the existing edge inserter adjustment structure and herringbone frame adjustment mechanism are usually fixed to the frame by direct welding, which has a high failure rate and is not convenient for disassembly and maintenance. Moreover, when adjusting the edge inserter and herringbone frame, it is usually done manually, which is inefficient and cannot guarantee the synchronization during the adjustment process. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an automatic adjustment mechanism for the edge inserter and A-frame of a blown film machine, which is easy and quick to assemble and realizes rapid adjustment of the edge inserter and A-frame.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows.

[0005] An automatic adjustment mechanism for the edge inserter and A-frame of a blown film machine includes a traction frame and a PLC controller. The traction frame houses the A-frame, which consists of two symmetrically inclined A-plates. Two edge inserters are symmetrically distributed along the transverse length of the A-plates between the A-plates. The traction frame is equipped with an A-frame opening / closing adjustment module for adjusting the opening degree between the two A-plates. An edge inserter adjustment module for adjusting the position of the edge inserters is detachably installed on the traction frame. The controlled ends of the A-frame opening / closing adjustment module and the edge inserter adjustment module are respectively connected to the output end of the PLC controller.

[0006] The above-mentioned blown film machine edge inserter and herringbone frame automatic adjustment mechanism, the herringbone frame opening and closing adjustment module includes bidirectional lead screws mounted on longitudinal mounting plates on both sides of the traction frame through bearing seats, the external threads on both sides of the bidirectional lead screws are arranged in opposite directions, and two herringbone plate connecting plates are threaded to both sides of the bidirectional lead screws respectively, the herringbone plate connecting plates are connected to the outer side of the herringbone plate, and the two bidirectional lead screws are connected by a synchronous transmission mechanism.

[0007] The aforementioned blown film machine edge inserter and A-frame automatic adjustment mechanism, wherein the synchronous transmission mechanism includes a transmission rod mounted on a transverse mounting plate of the traction frame via a bearing seat, with a first bevel gear at each end of the transmission rod, and a second bevel gear meshing with the first bevel gear at each end of the bidirectional lead screw; a second transmission wheel is mounted on the transmission rod, the second transmission wheel is connected to the first transmission wheel via a first synchronous belt, the first transmission wheel is connected to the motor shaft of a first motor, the first motor is mounted on the transverse mounting plate via a first motor mounting plate, and the controlled end of the first motor is connected to the output end of a PLC controller.

[0008] The above-mentioned blown film machine edge inserter and A-frame automatic adjustment mechanism includes an edge inserter adjustment module mounting plate on the traction frame, which is parallel to the longitudinal mounting plate and used to install the edge inserter adjustment module. The edge inserter adjustment module includes a longitudinal adjustment mechanism and a transverse spacing adjustment mechanism.

[0009] The aforementioned blown film machine edge inserter and herringbone frame automatic adjustment mechanism includes a longitudinal adjustment mechanism comprising an electric push rod and a movable plate mounted on the edge inserter adjustment module mounting plate. The movable plate is connected to the edge inserter, and the electric push rod is mounted on the edge inserter adjustment module mounting plate via an electric push rod mounting plate. One end of the movable plate is connected to the movable end of the electric push rod, and the controlled end of the electric push rod is connected to the output end of a PLC controller. A slider is provided on the movable plate, and a slide rail is provided on the edge inserter adjustment module mounting plate to slide along with the slider. A moving through slot is provided on the edge inserter adjustment module mounting plate to facilitate the movement of the movable plate with the electric push rod.

[0010] The above-mentioned blown film machine edge inserter and herringbone frame automatic adjustment mechanism includes a ball screw connected to the edge inserter. A third transmission wheel is provided on the moving plate. The other end of the ball screw passes through the center of the third transmission wheel and is threadedly connected to the third transmission wheel. The third transmission wheel is connected to a fourth transmission wheel through a second synchronous belt. The fourth transmission wheel is connected to the motor shaft of a second motor. The second motor is mounted on the moving plate through a second motor mounting plate. The controlled end of the second motor is connected to the output end of the PLC controller.

[0011] The technological advancements achieved by this utility model are as follows, due to the adoption of the above technical solutions.

[0012] This utility model provides an automatic adjustment mechanism for the edge inserter and A-frame of a blown film machine. By separately installing the A-frame opening and closing adjustment module and the edge inserter adjustment module on the traction frame, it is easy to replace and adjust the structure and assemble easily. Moreover, the A-frame plates open and close synchronously through the cooperation of the bidirectional lead screw and synchronous transmission mechanism, which ensures high stability during adjustment. The longitudinal position of the edge inserter is adjusted by the cooperation of the electric push rod and the moving plate, and the lateral position of the edge inserter is adjusted by the lateral spacing adjustment mechanism, thereby realizing the adjustment of the distance between the two edge inserters. Furthermore, the PLC controller is connected to the A-frame adjustment module and the edge inserter adjustment module to realize the automated adjustment of the edge inserter and the A-frame, which significantly improves the adjustment efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the specific structure of the present utility model; Figure 2 This is a schematic diagram of the specific structure of the A-frame opening and closing adjustment module of this utility model; Figure 3 This is a schematic diagram of the specific structure of the edge-adjusting module of this utility model.

[0014] The components are: 1. Traction frame, 2. A-frame, 3. Edge inserter, 4. A-frame opening and closing adjustment module, 5. Edge inserter adjustment module, 6. Lateral mounting plate, 7. Transmission rod, 8. First motor, 9. First motor mounting plate, 10. First transmission wheel, 11. Second transmission wheel, 12. First synchronous belt, 13. Bearing housing, 14. First bevel gear, 15. Second bevel gear, 16. Double-acting lead screw, 17. A-frame connecting plate, 18. Longitudinal mounting plate, 19. Ball screw, 20. Edge inserter adjustment module mounting plate, 21. Third transmission wheel, 22. Fourth transmission wheel, 23. Second synchronous belt, 24. Second motor mounting plate, 25. Moving plate, 26. Second motor, 27. Electric push rod, 28. Electric push rod mounting plate. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0016] Automatic adjustment mechanism for the edge inserter and A-frame of the blown film machine, such as Figures 1 to 3 As shown, the device includes a traction frame 1 and a PLC controller. The traction frame 1 is equipped with an A-frame, which consists of two symmetrical inclined A-plates 2. Two inserters 3 are symmetrically distributed along the transverse length of the A-plates 2. The traction frame 1 is equipped with an A-frame opening and closing adjustment module 4 for adjusting the opening and closing degree between the two A-plates 2. An inserter adjustment module 5 for adjusting the position of the inserters is detachably installed on the traction frame 1. The controlled ends of the A-frame opening and closing adjustment module 4 and the inserter adjustment module 5 are respectively connected to the output end of the PLC controller.

[0017] The A-frame opening and closing adjustment module 4 includes bidirectional lead screws 16 mounted on longitudinal mounting plates 18 on both sides of the traction frame 1 via bearing seats 13. The external threads on both sides of the bidirectional lead screws 16 are arranged in opposite directions. Two A-frame connecting plates 17 are threaded to both sides of the bidirectional lead screws 16. The A-frame connecting plates 17 are connected to the outer side of the A-frame 2. The bidirectional lead screws 16 on both sides are connected by a synchronous transmission mechanism, which drives the two A-frames 2 to move synchronously.

[0018] The synchronous transmission mechanism includes a transmission rod 7 mounted on a transverse mounting plate 6 of the traction frame 1 via a bearing seat 13. A first bevel gear 14 is provided at both ends of the transmission rod 7, and a second bevel gear 15 meshing with the first bevel gear 14 is provided at both ends of the bidirectional lead screw 16. A second transmission wheel 11 is provided on the transmission rod 7. The second transmission wheel 11 is connected to the first transmission wheel 10 via a first synchronous belt 12. The first transmission wheel 10 is connected to the motor shaft of the first motor 8. The first motor 8 is mounted on the transverse mounting plate 6 via a first motor mounting plate 9, and the controlled end of the first motor 8 is connected to the output end of the PLC controller.

[0019] The first motor 8 drives the transmission rod 7 to rotate through the cooperation of the first transmission wheel 10, the second transmission wheel 11, and the first synchronous belt 12. Under the transmission of the first bevel gear 14 and the second bevel gear 15, the two herringbone plates move in opposite directions, thereby realizing the adjustment of the opening degree of the herringbone plate 2.

[0020] The traction frame 1 is provided with an inserter adjustment module mounting plate 20 parallel to the longitudinal mounting plate 18, which is used to install the inserter adjustment module 5.

[0021] In this embodiment, there are two edge adjustment module mounting plates 20, and the two edge adjustment module mounting plates 20 are arranged side by side, one above the other.

[0022] The edge inserter adjustment module 5 includes a longitudinal adjustment mechanism and a transverse spacing adjustment mechanism. The longitudinal adjustment mechanism includes an electric push rod 27 and a movable plate 25 mounted on the edge inserter adjustment module mounting plate 20. The electric push rod 27 is mounted on the edge inserter adjustment module mounting plate 20 via an electric push rod mounting plate 28. One end of the movable plate 25 is connected to the movable end of the electric push rod 27, and the controlled end of the electric push rod 27 is connected to the output end of the PLC controller. The movable plate 25 is connected to the edge inserter 3. The position of the edge inserter in the longitudinal direction of the traction frame is adjusted by the cooperation of the electric push rod 27 and the movable plate.

[0023] The movable plate 25 is equipped with a slider, and the inserter adjustment module mounting plate 20 is equipped with a slide rail that is slidably connected to the slider.

[0024] The mounting plate 20 of the inserter adjustment module is provided with a movable through slot, which facilitates the movement of the movable plate 25 with the electric push rod.

[0025] The lateral spacing adjustment mechanism includes a ball screw 19 connected to the inserter 3, a third transmission wheel 21 on the moving plate 25, the other end of the ball screw 19 passing through the center of the third transmission wheel 21 and threadedly connected to the third transmission wheel 21, the third transmission wheel 21 being connected to the fourth transmission wheel 22 via the second synchronous belt 23, the fourth transmission wheel 22 being connected to the motor shaft of the second motor 26, the second motor 26 being mounted on the moving plate 25 via the second motor mounting plate 24, and the controlled end of the second motor 26 being connected to the output end of the PLC controller.

[0026] In use, the distance between the two edge inserters is first adjusted by the lateral spacing adjustment mechanism. The ball screw and edge inserters are moved laterally by the second synchronous belt. Then, the longitudinal position of the edge inserter 3 is adjusted by the electric push rod in the longitudinal adjustment mechanism. At the same time, the four electric push rods are controlled to move synchronously to ensure the accuracy of the longitudinal position adjustment of the edge inserter.

[0027] When adjusting the opening angle of the A-frame, the synchronous transmission mechanism drives the two bidirectional lead screws on both sides to rotate synchronously. At the same time, with the cooperation of the bidirectional lead screws and the A-frame plate connecting plate, the two A-frame plates move towards each other or away from each other, thus completing the adjustment of the opening angle of the A-frame.

[0028] This utility model provides an automatic adjustment mechanism for the edge inserter and A-frame of a blown film machine. By separately installing the A-frame opening and closing adjustment module and the edge inserter adjustment module on the traction frame, it is easy to replace and adjust the structure and assemble easily. Moreover, the A-frame plates open and close synchronously through the cooperation of the bidirectional lead screw and synchronous transmission mechanism, which ensures high stability during adjustment. The longitudinal position of the edge inserter is adjusted by the cooperation of the electric push rod and the moving plate, and the lateral position of the edge inserter is adjusted by the lateral spacing adjustment mechanism, thereby realizing the adjustment of the distance between the two edge inserters. Furthermore, the PLC controller is connected to the A-frame adjustment module and the edge inserter adjustment module to realize the automated adjustment of the edge inserter and the A-frame, which significantly improves the adjustment efficiency.

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