A film blowing machine winding device

Abstract

The utility model relates to the technical field of film blowing machine discloses a kind of film blowing machine winding device, including film blowing machine workbench and film blowing mechanism, film blowing mechanism is installed in the upside of film blowing machine workbench, the side of film blowing machine workbench is fixedly connected with two mounting plates, the downside of two mounting plates is respectively fixedly connected with limit sliding table, the inside of each limit sliding table is slidably connected with push plate, the utility model is through in the process of continuously winding of winding roller, diameter gradually increases, through the gear plate of one side moving of cylinder, through meshing the gear of one side rotates, through transmission rod transmission drives the gear of other side synchronous rotation, and realize the push plate of two sides and support are moved outward simultaneously, indirectly for the winding roller of diameter increasing to make room for space outward, and the distance of winding roller moving outward is consistent with the distance of diameter expansion, so it can keep the side of No.

Description

Technical Field

[0001] This utility model relates to the field of blown film machine technology, and in particular to a blown film machine winding device. Background Technology

[0002] A blown film machine is a plastic processing equipment that heats and melts plastic particles and blows them into a film. It is mainly used to produce packaging films made of materials such as PE, POF, and PVC, and is widely used in food, medicine, agriculture and other fields. The blown film machine melts and extrudes plastic particles, then compresses air to inflate them into shape, cools and sets them, and then pulls and winds them up.

[0003] In existing blown film machines, as the thickness of the film on the roll gradually increases during winding, the roll diameter of the roll gradually increases. If the angular velocity of the roll remains constant, the linear velocity of the take-up roll will increase. This may cause the tension of the upstream film belt moving at its original speed to gradually become too high. To avoid deformation or tearing of the film, blown film machines currently use servo motors to reduce the angular velocity of the take-up roll, thereby indirectly reducing the linear velocity of the take-up roll. However, although this can solve the problem of excessive tension, the increased roll diameter of the take-up roll causes a significant change in the distance between the take-up roll and the upstream positioning roll, as well as the winding angle between them, resulting in poor correction function of the blown film machine's winding mechanism.

[0004] In view of this, a blown film machine winding device that can solve the above problems is proposed. Utility Model Content

[0005] To address the technical problem of easy deviation during the winding and tensioning process of blown film machines, this utility model provides a blown film machine winding device.

[0006] This utility model is achieved using the following technical solution: a blown film machine winding device, comprising a blown film machine worktable and a blown film mechanism. The blown film mechanism is installed on the upper side of the blown film machine worktable. Two mounting plates are fixedly connected to one side of the blown film machine worktable. Limiting slides are fixedly connected to the lower sides of the two mounting plates respectively. A push plate is slidably connected to the inner side of each limiting slide. A support is fixedly connected to the upper side of the end of each push plate away from the blown film machine worktable. A winding roller is rotatably connected between the two supports. A tension adjustment mechanism is provided on one side of the winding roller. A winding roller translation mechanism for moving the winding roller back and forth is provided between the push plates. A positioning roller guide mechanism is provided between the two mounting plates.

[0007] Preferably, the tension adjustment mechanism includes a servo motor mounted on the outside of one of the supports, and the output end of the servo motor is connected to one end of the take-up roller.

[0008] Preferably, the take-up roller translation mechanism includes toothed plates fixedly connected to one side of the two push plates respectively, and a toothed plate synchronous drive mechanism is provided below the two toothed plates to enable the two toothed plates to move synchronously.

[0009] Preferably, the toothed plate synchronous drive mechanism includes a transmission rod rotatably connected between two mounting plates, with gears fixedly connected to both sides of the transmission rod, and each gear meshing with a corresponding toothed plate. A transmission rod drive mechanism for rotating the transmission rod is provided on the inner side of one of the mounting plates.

[0010] Preferably, the transmission rod drive mechanism includes a cylinder mounted inside the mounting plate therein, the output moving end of the cylinder is fixedly connected to a connecting block, and the lower side of the connecting block is fixedly connected to the upper side of the toothed plate on the same side.

[0011] Preferably, the positioning roller guiding mechanism includes a second positioning roller and a first positioning roller rotatably connected between two mounting plates, wherein the side of the first positioning roller abuts against the side of the take-up roller.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model, through the continuous winding of the take-up roller and the gradual increase of the roll diameter, pushes the toothed plate on one side to move by a cylinder, drives the gear on one side to rotate by meshing, and drives the gear on the other side to rotate synchronously by a transmission rod, thereby simultaneously pushing the push plates and supports on both sides to move outward, indirectly making room for the take-up roller with the increased roll diameter to move outward. The distance the take-up roller moves outward is consistent with the distance the roll diameter increases, so that the side of the first positioning roller is always in contact with the film wound on the take-up roller, thereby achieving the function of correction. 2. This utility model uses a cylinder to drive the toothed plate to move, which has the advantage of high distance output control accuracy. Furthermore, by rotating the transmission rod, the gears at both ends are kept to rotate synchronously and extend synchronously to support the take-up roller, making the forward extension process of the take-up roller more stable and avoiding the problem of uneven winding caused by inconsistent forward extension distances at both ends of the take-up roller. Attached Figure Description

[0013] Figure 1 This utility model provides an overall structural schematic diagram of a blown film machine winding device; Figure 2 for Figure 1 A schematic diagram of a partial structure; Figure 3 for Figure 2 Internal structure diagram; Figure 4 for Figure 3 A bottom view; Figure 5 for Figure 4 Side view.

[0014] Explanation of key symbols: 1. Film blowing machine worktable; 2. Film blowing mechanism; 3. Mounting plate; 4. No. 1 positioning roller; 5. Support; 6. Take-up roller; 7. No. 2 positioning roller; 8. Servo motor; 10. Cylinder; 11. Transmission rod; 12. Gear plate; 13. Push plate; 14. Connecting block; 15. Gear; 16. Limit slide. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0016] Example: Please combine Figures 1-3 This embodiment of a blown film machine winding device includes a blown film machine workbench 1 and a blown film mechanism 2. The blown film mechanism 2 is installed on the upper side of the blown film machine workbench 1. Two mounting plates 3 are fixedly connected to one side of the blown film machine workbench 1. Limiting slides 16 are fixedly connected to the lower side of the two mounting plates 3 respectively. Push plates 13 are slidably connected to the inner side of each limiting slide 16. Supports 5 are fixedly connected to the upper side of the end of each push plate 13 away from the blown film machine workbench 1. Clamps are provided on the supports 5 to quickly position the two ends of the winding roller 6. Please combine Figure 3 As shown, a take-up roller 6 is rotatably connected between the two supports 5. A tension adjustment mechanism is provided on one side of the take-up roller 6. A take-up roller translation mechanism that moves the take-up roller 6 back and forth is provided between the push plates 13. A positioning roller guide mechanism is provided between the two mounting plates 3.

[0017] Through the above technical solution, the push plates 13 on both sides can slide outward simultaneously, pushing the take-up roller 6 to move outward, providing space for the expansion of the roll diameter; Please combine Figure 3 As shown, the tension adjustment mechanism includes a servo motor 8 mounted on the outside of one of the supports 5. The output end of the servo motor 8 is connected to one end of the take-up roller 6. By reducing the angular velocity of the take-up roller 6 through the servo motor 8, the linear velocity after the roll diameter increases can be reduced, thereby reducing the tension of the film. Please combine Figure 3 As shown, the take-up roller translation mechanism includes toothed plates 12 that are fixedly connected to one side of the two push plates 13 respectively, and a toothed plate synchronous drive mechanism is provided below the two toothed plates 12 to make the two toothed plates 12 move synchronously.

[0018] Please combine Figure 3The toothed plate synchronous drive mechanism includes a transmission rod 11 rotatably connected between two mounting plates 3. The transmission rod 11 rotates to maintain synchronous movement on both sides. Gears 15 are fixedly connected to both sides of the transmission rod 11, and each gear 15 meshes with the corresponding toothed plate 12. A transmission rod drive mechanism for rotating the transmission rod 11 is provided on the inner side of one of the mounting plates 3.

[0019] Please combine Figure 3 As shown, the transmission rod drive mechanism includes a cylinder 10 mounted inside the mounting plate 3. The output moving end of the cylinder 10 is fixedly connected to a connecting block 14. The lower side of the connecting block 14 is fixedly connected to the upper side of the toothed plate 12 on the same side. The cylinder 10 is used to control the distance output with precision to push the toothed plate 12 forward. The positioning roller guiding mechanism includes a second positioning roller 7 and a first positioning roller 4 rotatably connected between two mounting plates 3, with the side of the first positioning roller 4 abutting against the side of the take-up roller 6. It should be noted that, in this embodiment, in order to solve the problem of correction as the diameter of the take-up roller 6 increases, the side of the first positioning roller 4 in this embodiment is always in contact with the outside of the film roll wound by the outwardly moving take-up roller 6. The implementation principle of the blown film machine winding device in this embodiment is as follows: When the film product formed by the blown film mechanism 2 flows into the winding roller 6 along the second positioning roller 7 and the first positioning roller 4, the servo motor 8 and the cylinder 10 are started. When the thickness of the film wound on the winding roller 6 increases, resulting in an increase in roll diameter, the speed of the winding roller 6 is automatically controlled by the servo motor 8 to slow down, thereby reducing the linear speed of the film and avoiding damage caused by excessive tension. At the same time, due to the increase in roll diameter, the distance between the winding roller 6 and the first positioning roller 4 decreases. At this time, the cylinder 10 pushes the toothed plate 12 on one side to move outward, and the push plate 13 fixedly connected to one side of the toothed plate 12 slides outward along the limiting slide table 16. At the same time, the toothed plate 12 pushes the gear 15 on the lower side to rotate, and the gear 15 drives the transmission rod 11 to rotate, which pushes the gear 15 on the other side to rotate, thereby pushing the push plate 13 on the other side to extend forward at the same time, so as to achieve the function of pushing the take-up roller 6 outward through the supports 5 on both sides, thereby making room for the take-up roller 6 with the gradually increasing roll diameter to maintain contact with the first positioning roller 4, and providing a correction function.

[0020] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A blown film machine winding device, comprising a blown film machine worktable (1) and a blown film mechanism (2), characterized in that, The blown film mechanism (2) is installed on the upper side of the blown film machine workbench (1). Two mounting plates (3) are fixedly connected to one side of the blown film machine workbench (1). Limiting slides (16) are fixedly connected to the lower side of the two mounting plates (3). Push plates (13) are slidably connected to the inner side of each limiting slide (16). Supports (5) are fixedly connected to the upper side of the end of each push plate (13) away from the blown film machine workbench (1). A take-up roller (6) is rotatably connected between the two supports (5). A tension adjustment mechanism is provided on one side of the take-up roller (6). A take-up roller translation mechanism is provided between the push plates (13) to move the take-up roller (6) back and forth. A positioning roller guide mechanism is provided between the two mounting plates (3).

2. The blown film machine winding device as described in claim 1, characterized in that, The tension adjustment mechanism includes a servo motor (8) mounted on the outside of one of the supports (5), and the output end of the servo motor (8) is connected to one end of the take-up roller (6).

3. The blown film machine winding device as described in claim 1, characterized in that, The take-up roller translation mechanism includes toothed plates (12) that are fixedly connected to one side of the two push plates (13) respectively, and a toothed plate synchronous drive mechanism is provided below the two toothed plates (12) to make the two toothed plates (12) move synchronously.

4. The blown film machine winding device as described in claim 3, characterized in that, The toothed plate synchronous drive mechanism includes a transmission rod (11) rotatably connected between two mounting plates (3). Gears (15) are fixedly connected to both sides of the transmission rod (11), and each gear (15) meshes with the corresponding toothed plate (12). A transmission rod drive mechanism for rotating the transmission rod (11) is provided on the inner side of one of the mounting plates (3).

5. The blown film machine winding device as described in claim 4, characterized in that, The transmission rod drive mechanism includes a cylinder (10) mounted inside the mounting plate (3). The output moving end of the cylinder (10) is fixedly connected to a connecting block (14). The lower side of the connecting block (14) is fixedly connected to the upper side of the toothed plate (12) on the same side.

6. The blown film machine winding device as described in claim 1, characterized in that, The positioning roller guiding mechanism includes a second positioning roller (7) and a first positioning roller (4) rotatably connected between two mounting plates (3), with the side of the first positioning roller (4) abutting against the side of the take-up roller (6).

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