Bottom rotating mechanism for film blowing machine

Abstract

The utility model discloses a bottom rotating mechanism for a film blowing machine, which comprises a base, a fixing frame, a main rotating frame and a plurality of auxiliary rotating frames, the base is rotatably connected with the plurality of auxiliary rotating frames, the plurality of auxiliary rotating frames are sequentially arranged at intervals from top to bottom, the main rotating frame rotates on the fixing frame, and the main rotating frame rotates on the fixing frame. The main rotating frame is arranged over the auxiliary rotating frame located on the uppermost side. The mechanism is provided with the main rotating frame and the auxiliary rotating frames, the main rotating frame and the auxiliary rotating frames are sequentially arranged at intervals from top to bottom to jointly guide film conveying, then the driving motor on the main rotating frame drives the main rotating frame to rotate, and the main rotating frame is matched to drive the auxiliary rotating frames to rotate; the rotating angles of the main rotating frame and the auxiliary rotating frames are different, so that the walking stability of the film is guaranteed, and the overall structure is practical and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of film equipment, in particular to a bottom rotating mechanism for a film blowing machine. Background Art

[0002] The film blowing machine is a kind of equipment widely used in the plastic product processing industry. It realizes the continuous production of plastic film by extruding the molten plastic particles and blowing them into a film. This equipment can produce plastic films of various specifications and qualities, and its processing speed is fast and efficient. After the existing film blowing machine blows the film, it needs to convey the film and then reel it up. During the conveying process, due to the influence of the existing equipment structure and the influence of the mold from which the film is blown, the film is easily unstable, which leads to defects in the film reeling. The announcement number is CN203293526U, and provides an upper rotary film blowing machine that can accurately control the stop positioning of the rotating platform, which includes a rotating platform and a platform frame, and a platform stop positioning device is correspondingly installed on the rotating platform and the platform frame; the platform stop positioning device includes an inductive proximity switch and a positioning ejector, the inductive proximity switch is installed at the edge of the rotating platform, and the positioning ejector is fixedly installed at the edge of the platform frame. Although the film blowing machine can blow the film in an upper rotary manner, it is difficult to ensure that the film can be stably conveyed during the process of conveying the film after the film blowing. Utility Model Content

[0003] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a practical bottom rotating mechanism for a film blowing machine.

[0004] To achieve the above purpose, the utility model provides a solution as follows: a bottom rotating mechanism for a film blowing machine, comprising a base, a fixed frame, a main rotating frame, and a plurality of auxiliary rotating frames, wherein the base is rotatably connected to a plurality of auxiliary rotating frames, and the plurality of auxiliary rotating frames are sequentially arranged at intervals from top to bottom, the main rotating frame rotates on the fixed frame, the main rotating frame is arranged directly above the auxiliary rotating frame located at the uppermost side, the main rotating frame is used to drive the plurality of auxiliary rotating frames to rotate, and the rotation angles of the main rotating frame and the plurality of auxiliary rotating frames are different;

[0005] The main rotating frame is provided with a driving motor, and the driving motor is used to drive the main rotating frame to rotate. The main rotating frame and a plurality of auxiliary rotating frames are used to jointly guide the film conveyance.

[0006] The beneficial effects of the utility model are as follows: the stability of the film travel is ensured; the mechanism is provided with a main rotating frame and a plurality of auxiliary rotating frames, and the main rotating frame and the plurality of auxiliary rotating frames are arranged in sequence from top to bottom to jointly guide the film conveying, and then the driving motor on the main rotating frame drives the main rotating frame to rotate, and the main rotating frame drives the plurality of auxiliary rotating frames to rotate, and the main rotating frame and the plurality of auxiliary rotating frames have different rotation angles, so as to ensure the stability of the film travel, and the overall structure is practical and reliable.

[0007] Furthermore, the fixed frame is provided with an outer ring, the main rotating frame is provided with an inner ring, the inner ring rotates inside the outer ring, and the driving motor is used to drive the inner ring to rotate. After the utility model adopts the above structure, the main rotating frame can be driven to rotate.

[0008] Furthermore, the driving motor is connected to a driving reduction box, the driving reduction box is connected to a transmission gear, and the transmission gear is used to drive the inner ring to rotate.

[0009] Furthermore, the base is rotatably connected to a first rotating shaft and a second rotating shaft, the first rotating shaft and the second rotating shaft are respectively vertically arranged, the first rotating shaft is rotatably connected to the multiple auxiliary rotating frames, and the top of the first rotating shaft is rotatably connected to a first driving gear.

[0010] Furthermore, the second rotating shaft is provided with a first driven gear and a plurality of second driving gears, the first driven gear and the plurality of second driving gears are sequentially arranged from top to bottom, and the first driving gear meshes with the first driven gear. The utility model adopts the above structure to drive the rotation of a plurality of auxiliary rotating frames.

[0011] Furthermore, a second driven gear is connected to the bottom of one of the auxiliary rotating frames, and a plurality of the second driving gears are respectively meshed with the plurality of the second driven gears in a one-to-one correspondence, wherein the gear ratio of the first driving gear to the first driven gear, and the gear ratio of the plurality of second driving gears to the plurality of second driven gears are all different. After the utility model adopts the above structure, the rotation angles of the main rotating frame and the plurality of auxiliary rotating frames are all different.

[0012] Furthermore, the main rotating frame is rotatably connected with a bending roller and a plurality of first guide rollers, and the plurality of first guide rollers and a bending roller are sequentially arranged at intervals along the conveying direction. After adopting the above structure, the utility model realizes guiding the film conveying.

[0013] Furthermore, a part of the auxiliary rotating frame is rotatably connected to the second guide roller, and another part of the auxiliary rotating frame is rotatably connected to the air floating roller, and the second guide roller and the air floating roller are arranged in a front-to-back staggered manner. After adopting the above structure, the utility model realizes guiding the film conveying. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The overall structure of the utility model is three-dimensional Figure 1 .

[0015] Figure 2 The overall structure of the utility model is three-dimensional Figure 2 .

[0016] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0017] Figure 4 The overall structure of the utility model is three-dimensional Figure 3 .

[0018] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0019] Among them, 1 is a base, 11 is a first rotating shaft, 12 is a second rotating shaft, 13 is a first driven gear, 14 is a second driving gear, 15 is a blower, 2 is a fixed frame, 21 is an outer ring, 3 is a main rotating frame, 31 is an inner ring, 32 is a driving motor, 321 is a driving reduction box, 322 is a transmission gear, 33 is a first driving gear, 34 is a bending roller, 35 is a first guide roller, 4 is a secondary rotating frame, 41 is a second driven gear, 42 is a second guide roller, and 43 is an air floating roller. DETAILED DESCRIPTION

[0020] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] See attached Figure 1 To Attachment Figure 3As shown, a bottom rotating mechanism for a film blowing machine includes a base 1, a fixed frame 2, a main rotating frame 3, and multiple auxiliary rotating frames 4. The base 1 is rotatably connected to multiple auxiliary rotating frames 4, and the multiple auxiliary rotating frames 4 are arranged in sequence from top to bottom. The main rotating frame 3 rotates on the fixed frame 2, and the main rotating frame 3 is arranged directly above the auxiliary rotating frame 4 located on the uppermost side. The main rotating frame 3 is used to drive the multiple auxiliary rotating frames 4 to rotate, and the rotation angles of the main rotating frame 3 and the multiple auxiliary rotating frames 4 are different; the base 1 is rotatably connected to a first rotating shaft 11 and a second rotating shaft 12, and the first rotating shaft 11 and the second rotating shaft 12 are respectively vertically arranged, the first rotating shaft 11 is rotatably connected to multiple auxiliary rotating frames 4, and the top of the first rotating shaft 11 is rotatably connected to a first driving gear 33.

[0023] In this embodiment, the second rotating shaft 12 is mounted with a first driven gear 13 and a plurality of second driving gears 14 . The first driven gear 13 and the plurality of second driving gears 14 are sequentially arranged from top to bottom, and the first driving gear 33 meshes with the first driven gear 13 .

[0024] In this embodiment, a second driven gear 41 is connected to the bottom of a sub-rotating frame 4, and a plurality of second driving gears 14 are meshed with the plurality of second driven gears 41 in a one-to-one correspondence, wherein the gear ratio of the first driving gear 33 to the first driven gear 13, and the gear ratio of the plurality of second driving gears 14 to the plurality of second driven gears 41 are all different; that is, the gear ratio of the first driving gear 33 to the first driven gear 13, and the gear ratio of each group of second driving gears 14 to the second driven gear 41 are all different, so that the rotation angles of the plurality of sub-rotating frames 4 are different, and also different from the rotation angle of the main rotating frame 3.

[0025] A driving motor 32 is provided on the main rotating frame 3, and the driving motor 32 is used to drive the main rotating frame 3 to rotate. The main rotating frame 3 and multiple auxiliary rotating frames 4 are used to jointly guide the film transportation. The driving motor 32 is connected to a driving reduction box 321, and the driving reduction box 321 is connected to a transmission gear 322. The transmission gear 322 is used to drive the inner ring 31 to rotate.

[0026] In this embodiment, an outer ring 21 is disposed on the fixed frame 2 , and an inner ring 31 is disposed on the main rotating frame 3 . The inner ring 31 rotates inside the outer ring 21 , and the driving motor 32 is used to drive the inner ring 31 to rotate.

[0027] In this embodiment, the main rotating frame 3 is rotatably connected with a bending roller 34 and a plurality of first guide rollers 35 , and the plurality of first guide rollers 35 and the bending roller 34 are sequentially arranged at intervals along the conveying direction.

[0028] In this embodiment, a portion of the auxiliary rotating frame 4 is rotatably connected to the second guide roller 42 , and another portion of the auxiliary rotating frame 4 is rotatably connected to the air floating roller 43 . The second guide roller 42 and the air floating roller 43 are arranged in a front-to-back staggered manner.

[0029] In this embodiment, a plurality of blowers 15 are disposed on the base 1 .

[0030] In this embodiment, the specific rotation process is as follows: after the film is extruded from the screw extruder, it is transported downward to the first guide roller 35 and input into the main rotating frame 3, and then transported to multiple auxiliary rotating frames 4 through the bending roller 34, and then the film is pulled and transported by the second guide rollers 42 and the air floating rollers 43 of the multiple auxiliary rotating frames 4;

[0031] The driving motor 32 drives the driving reduction box 321 to work, the driving reduction box 321 drives the transmission gear 322 to rotate, the transmission gear 322 drives the inner ring 31 to rotate, thereby driving the main rotating ring 3 to rotate, so that the first guide roller 35 rotates to a set angle, the main rotating ring 3 rotates to drive the first driving gear 33 to rotate, the first driving gear 33 drives the first driven gear 13 to rotate, thereby driving multiple second driving gears 14 to rotate synchronously, the second driving gear 14 drives the second driven gear 41 to rotate, thereby driving multiple auxiliary rotating frames 4 to rotate, because the gear speed ratios between each group of second driving gears 14 and the second driven gear 41 are different, the rotation angles of the multiple auxiliary rotating frames 4 are different, so that each second guide roller 42 and each air flotation roller 43 rotate to different angles, so that the first guide roller 35 rotates to a set angle, so that the main rotating frame 3 and multiple auxiliary rotating frames 4 rotate to different angles, thereby ensuring the stability of the film walking.

[0032] The embodiments described above are only preferred embodiments of the present invention and do not limit the present invention in any form. Any technician familiar with the field can use the above disclosed technical content to make more possible changes and modifications to the technical solution of the present invention without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, all equivalent and equivalent changes made according to the idea of ​​the present invention without departing from the content of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A bottom rotating mechanism for a film blowing machine, comprising a base (1), a fixed frame (2), a main rotating frame (3), and a plurality of auxiliary rotating frames (4), characterized in that: The base (1) is rotatably connected to a plurality of auxiliary rotating frames (4), the plurality of auxiliary rotating frames (4) being arranged in sequence from top to bottom at intervals, the main rotating frame (3) rotating on the fixed frame (2), the main rotating frame (3) being arranged directly above the auxiliary rotating frame (4) located at the uppermost side, the main rotating frame (3) being used to drive the plurality of auxiliary rotating frames (4) to rotate, and the rotation angles of the main rotating frame (3) and the plurality of auxiliary rotating frames (4) being different; The main rotating frame (3) is provided with a driving motor (32), and the driving motor (32) is used to drive the main rotating frame (3) to rotate. The main rotating frame (3) and the plurality of auxiliary rotating frames (4) are used to jointly guide the transport of the film.

2. The bottom rotating mechanism for a film blowing machine according to claim 1, characterized in that: An outer ring (21) is provided on the fixed frame (2), an inner ring (31) is provided on the main rotating frame (3), the inner ring (31) rotates inside the outer ring (21), and the driving motor (32) is used to drive the inner ring (31) to rotate.

3. The bottom rotating mechanism for a film blowing machine according to claim 1, characterized in that: The base (1) is rotatably connected to a first rotating shaft (11) and a second rotating shaft (12); the first rotating shaft (11) and the second rotating shaft (12) are respectively arranged vertically; the first rotating shaft (11) is rotatably connected to the plurality of auxiliary rotating frames (4); and the top of the first rotating shaft (11) is rotatably connected to a first driving gear (33).

4. The bottom rotating mechanism for a film blowing machine according to claim 3, characterized in that: A first driven gear (13) and a plurality of second driving gears (14) are mounted on the second rotating shaft (12); the first driven gear (13) and the plurality of second driving gears (14) are sequentially arranged at intervals from top to bottom; and the first driving gear (33) is meshed with the first driven gear (13).

5. The bottom rotating mechanism for a film blowing machine according to claim 4, characterized in that: A second driven gear (41) is connected to the bottom of the auxiliary rotating frame (4), and the plurality of second driving gears (14) are respectively meshed with the plurality of second driven gears (41) in a one-to-one correspondence, wherein the gear speed ratio between the first driving gear (33) and the first driven gear (13) and the gear speed ratio between the plurality of second driving gears (14) and the plurality of second driven gears (41) are all different.

6. The bottom rotating mechanism for a film blowing machine according to claim 5, characterized in that: The main rotating frame (3) is rotatably connected to a bending roller (34) and a plurality of first guide rollers (35), and the plurality of first guide rollers (35) and a bending roller (34) are sequentially arranged at intervals along the conveying direction.

7. The bottom rotating mechanism for a film blowing machine according to claim 6, characterized in that: A portion of the auxiliary rotating frame (4) is rotatably connected to a second guide roller (42), and another portion of the auxiliary rotating frame (4) is rotatably connected to an air flotation roller (43), wherein the second guide roller (42) and the air flotation roller (43) are arranged in a front-to-back staggered manner.

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