CN224170472U - A rotary traction mechanism for blown film packaging - Google Patents
A rotary traction mechanism for blown film packagingInfo
- Publication number
- CN224170472U CN224170472U CN202520966654.3U CN202520966654U CN224170472U CN 224170472 U CN224170472 U CN 224170472U CN 202520966654 U CN202520966654 U CN 202520966654U CN 224170472 U CN224170472 U CN 224170472U
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- rotary
- roller
- unpowered
- transmission roller
- gear
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Abstract
The utility model discloses a rotary traction mechanism for a re-packaging film blowing, which comprises a rotary supporting gear, wherein a passive force transmission roller, a main force transmission roller and an unpowered transmission roller are arranged above the rotary supporting gear, an unpowered hard roller is arranged outside the unpowered transmission roller, a follow-up air cushion roller is arranged at the top of the unpowered transmission roller, an upper layer rotary supporting seat is arranged at the top of the rotary roller, a rotary gear set is coaxially arranged at the top and the bottom of the upper layer rotary supporting seat, and a reversing box is arranged on one side of the rotary gear set. The utility model realizes the accurate control of rotation and traction in the film blowing process, can ensure that the film keeps stable traction speed and tension, improves the uniformity and consistency of the film, can reduce the cooling time and the production period of the film, thereby accelerating the speed of a production line, can flexibly adjust according to different production requirements, and can adapt to various film specifications.
Description
Technical Field
The utility model relates to the technical field of film blowing machines, in particular to a rotary traction mechanism for re-packaging film blowing.
Background
The film blowing machine is a special equipment for producing plastic film, and is characterized by that after the plastic granules are heated and melted by means of extrusion moulding process, the plastic granules are extruded into tubular film bubble by means of annular die head, and passed through the processes of drawing, cooling and rolling so as to obtain the invented single-layer or multi-layer plastic film. The film blowing rotary drawing operation is an important link in the plastic film manufacturing process, and relates to extruding molten plastic raw materials through a die head to form film bubbles, then changing the shape and thickness of the film bubbles through a rotary drawing device, and finally rolling into film rolls.
In the production process of the existing film blowing machine, the thickness uniformity of each point of cylindrical film bubble extruded from a circular ring-shaped extrusion port of film blowing equipment is poor, and rolled films are accumulated and overlapped gradually at the same position of a coiled material to cause poor rolling quality. When the lower die head is rotated and the upper traction device is fixed to improve the uniformity of the film thickness, the problems of material leakage and the like are easy to occur due to the complicated structure, difficult maintenance and poor sealing performance of the rotating die head, and when the lower die head is fixed and the upper circular traction support is rotated to improve the uniformity of the film thickness, the thickness error position is distributed in a periodic sinusoidal curve, so that the problem of uneven thickness of the rolled film cannot be thoroughly solved.
Disclosure of utility model
The utility model aims to solve the problems and provides a rotary traction mechanism for the re-packaging film blowing.
The utility model adopts the following technical scheme for realizing the purposes, and comprises the following steps:
the rotary support gear is provided with a plurality of groups of rotary rollers which are arranged in parallel above the rotary support gear;
The rotary roller comprises a passive force transmission roller, a main force transmission roller and an unpowered transmission roller, wherein an unpowered hard roller is arranged on the outer side of the unpowered transmission roller, a follow-up hard roller is arranged at the top of the unpowered hard roller, and a follow-up air cushion roller is arranged at the top of the unpowered transmission roller;
The top of the rotary roller is provided with an upper layer rotary supporting seat, the top and the bottom of the upper layer rotary supporting seat are coaxially provided with a rotary gear set, and one side of the rotary gear set is provided with a reversing box.
The rotary support gear is provided with a rotary drive gear on one side, and a rotary drive motor is arranged on one side of the drive gear.
As a further description of the technical scheme, mounting plates are symmetrically arranged on the tops of the rotary supporting gears, and the ends of the rotary rollers are detachably mounted on the mounting plates.
As a further description of the above technical solution, the rotating roller ends are symmetrically provided with a seated bearing, and the rotating roller is detachably connected with the mounting plate through the seated bearing.
As a further description of the above technical solution, a circular assembly plate is disposed in the middle of the mounting plate, and the outer side of the end of the main power transmission roller is detachably connected with the circular assembly plate on the mounting plate through a bearing with a seat.
As a further description of the technical scheme, the top of the inner side of the circular assembly plate is provided with a supporting tube, and the bottom of the inner side of the circular assembly plate is provided with an unpowered hard roller.
As further description of the technical scheme, the bevel gears are arranged on the inner side of the round assembly plate, the driving wheel sets are arranged on the outer side of the installation plate, the driving motor sets are arranged on two sides of the driving wheel sets, and the output ends of the driving motor sets are rotationally connected with the driving wheel sets through synchronous belts.
As a further description of the above technical solution, the main power transmission roller is disposed between the driven power transmission roller and the unpowered transmission roller, the driven power transmission roller includes a water-passing cooling roller and a surface rubber covered roller that are disposed in parallel, the main power transmission roller includes two sets of water-passing cooling rollers that are disposed in parallel, and the unpowered transmission roller includes a water-passing cooling roller and a surface rubber covered roller that are disposed in parallel.
As a further description of the above technical solution, a rotary joint is disposed at the outer side of the end portion of the water cooling roller, and the water cooling roller is communicated with an external water supply end through the rotary joint.
As further description of the technical scheme, the outer side of the end part of the surface rubber covered roller is rotationally connected with the driving wheel group, a sliding guide rail is arranged at the bottom of a bearing with a seat at the inner side of the end part of the surface rubber covered roller, a tensioning cylinder is arranged below the guide rail, and a rotary screw is arranged at the top of the bearing with the seat at the inner side of the end part of the surface rubber covered roller.
The beneficial effects of the utility model are as follows:
According to the utility model, the driving motor group drives the multiple groups of rotary rollers through the belt transmission driving wheel group to draw and stretch the film in cooperation with the follow-up rollers, and the rotary supporting gear at the bottom and the rotary driving gear at the top are matched with the reversing box to rotate, so that the rotation and the drawing in the film blowing process are accurately controlled, the stable drawing speed and tension of the film in the production process can be ensured, the uniformity and the consistency of the film are improved, and the physical performance of the film is optimized; the cooling time and the production period of the film can be reduced, so that the speed of the production line can be increased, the film can be flexibly adjusted according to different production requirements, various film specifications can be adapted, and the flexibility and the adaptability of the production line are improved.
In order to more clearly illustrate the structural features and functions of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings and the embodiments.
Drawings
FIG. 1 is a schematic structural view of a rotary traction mechanism for re-packaging film blowing of the present utility model;
FIG. 2 is a front view of the rotary drag mechanism of the present utility model;
FIG. 3 is a side view of the rotary draw mechanism of the present utility model for re-bagging blown film;
FIG. 4 is a top view of the rotary draw mechanism of the present utility model;
FIG. 5 is a cross-sectional view of the rotary drag mechanism of the present utility model;
Fig. 6 is a schematic view of the structure of the main power transmission roller of the present utility model.
Reference numerals:
1. A rotary support gear; 2, a rotary roller, 201, a passive force transmission roller, 202, a main force transmission roller, 203, an unpowered transmission roller, 3, an unpowered hard roller, 4, a follow-up hard roller, 5, a follow-up air cushion roller, 6, an upper layer rotary supporting seat, 7, a rotary gear set, 8, a reversing box, 9, a rotary driving gear, 10, a rotary driving motor, 11, a mounting plate, 12, a seat bearing, 13, a round mounting plate, 14, a supporting tube, 15, a bevel gear, 16, a driving wheel set, 17, a driving motor set, 18, a water-passing cooling roller, 19, a surface rubber coating roller, 20, a rotary joint, 21, a sliding guide rail, 22, a tensioning cylinder and 23, and a rotary screw.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
1-6, In one embodiment, the rotary traction mechanism for the film blowing of the bale comprises a rotary supporting gear 1, wherein a plurality of groups of rotary rollers 2 which are arranged in parallel are detachably arranged above the rotary supporting gear 1 and are used for drawing and stretching the film;
Further, the rotary support gear 1 is provided with a rotary drive gear 9 on one side, and a rotary drive motor 10 on the drive gear side. It can be understood that the output end of the rotary driving motor 10 is rotationally connected with the rotary driving gear 9, and the rotary driving gear 9 is meshed with the rotary supporting gear 1, so that the rotary driving motor 10 can drive the rotary driving gear 9 to rotate after being started, and then drive the rotary supporting gear 1 to rotate.
It should be noted in detail that, the outer side of the mounting plate 11 is correspondingly provided with a driving wheel set 16, which includes a belt pulley for driving and a synchronous belt pulley for adjusting the driving direction, and two sides of the driving wheel set 16 are provided with a driving motor set 17, so that the output end of the driving motor set 17 can be rotationally connected with the driving wheel set 16 through belt transmission, and further the rotating roller 2 mounted on the inner side is driven to rotate.
Further, the top of the rotary support gear 1 is symmetrically provided with a mounting plate 11, and the ends of the plurality of groups of rotary rollers 2 are detachably mounted on the mounting plate 11. The rotary roller 2 comprises a layer of passive roller 201, a layer of active roller 202 and a layer of unpowered roller 203. Specifically, the main power transmission roller 202 is disposed between the passive power transmission roller 201 and the unpowered transmission roller 203 for drawing and stretching the film.
With continued reference to fig. 1-6, in this embodiment, the bottom layer driven transfer roll 201 includes a set of through-water cooling rolls 18 and a set of surface rubber covered rolls 19 arranged in parallel. The end parts of the two sides of the water cooling roller 18 and the surface rubber covered roller 19 are respectively provided with a belt seat bearing 12, so that two groups of driven power transmission rollers 201 can be detachably arranged on the reserved mounting holes on the mounting plate 11 through the belt seat bearings 12.
It can be understood that the positions of the water-passing cooling roller 18 and the surface rubber covered roller 19 located at the outer side of the mounting plate 11 are correspondingly provided with a group of driving wheel sets 16, one side of each driving wheel set 16 is correspondingly provided with a group of driving motor sets 17, and the driving motor sets can further drive the water-passing cooling roller 18 and the surface rubber covered roller 19 to rotate through belt pulleys and synchronous belt pulleys, in addition, the outer side of a shaft head at one end of the water-passing cooling roller 18 is correspondingly provided with a rotary joint 20, so that the water-passing cooling roller 18 can be communicated with an external water supply end through the rotary joint 20, and cooling water circulation supply is performed, and the film is primarily cooled.
The bottom of the seat bearing 12 inside the end part of the surface rubber covered roller 19 at the bottom layer is provided with a group of circular sliding guide rails 21 through a side moving plate, so that the horizontal sliding of the surface rubber covered roller 19 is realized, the distance between the water cooling roller 18 and the surface rubber covered roller 19 is adjusted, two groups of tensioning cylinders 22 are correspondingly arranged below the guide rails and used for tensioning the surface rubber covered roller 19 inwards or outwards, and correspondingly, the top of the seat bearing 12 inside the end part of the surface rubber covered roller 19 is also provided with a rotary screw 23, and the rubber covered roller group is limited through a knob at the end part of the rotary screw 23.
With continued reference to fig. 1-6, in this embodiment, the middle tier main power transfer roll 202 includes two sets of through-water cooled rolls 18 arranged in parallel. The end parts of the two sides of the water cooling roller 18 are provided with the bearing with seats 12, so that the two groups of main power transmission rollers can be detachably arranged on the reserved mounting holes on the mounting plate 11 through the bearing with seats 12.
It can be understood that the position of the water-passing cooling roller 18 outside the mounting plate 11 is correspondingly provided with a group of driving wheel sets 16, one side of each driving wheel set 16 is correspondingly provided with a group of driving motor sets 17, and the driving motor sets can drive the water-passing cooling roller 18 and the surface rubber covered roller 19 through belt pulleys and synchronous belt pulleys, and correspondingly, the outer side of a shaft head at one end of the water-passing cooling roller 18 is correspondingly provided with a rotary joint 20, so that the water-passing cooling roller 18 can be communicated with an external water supply end through the rotary joint 20, thereby cooling water is circularly supplied, and the film is secondarily cooled.
It should be noted in detail that the two sets of water passing cooling rollers 18 in the middle layer are integrally mounted and dismounted by the circular mounting plate 13. Wherein, the circular mounting plate 13 is detachably arranged in the middle of the mounting plate 11, and the outer side of the end part of the main power transmission roller 202 is detachably connected with the circular mounting plate 13 on the mounting plate 11 through the bearing 12 with a seat.
Specifically, a group of square support tubes 14 are arranged at the top of the inner side of the circular assembly plate 13 for enhancing structural strength, a group of unpowered hard rollers 3 made of metal are arranged at the bottom of the inner side of the circular assembly plate 13 for guiding films of which the bottom is conveyed by the power transmission rollers 201, and bevel gears 15 are arranged on the inner side of the circular assembly plate 13 so as to realize integral rotation of the circular assembly plate 13 in cooperation with an outer pinion and a group of driving motor groups 17.
With continued reference to fig. 1-6, in this embodiment, the top unpowered transmission roller 203 comprises a set of through-water cooled rollers 18 and a set of surface rubber covered rollers 19 disposed in parallel opposite the bottom layer. The end parts of the two sides of the water cooling roller 18 and the surface rubber covered roller 19 are respectively provided with a belt seat bearing 12, so that two groups of driven power transmission rollers 201 can be detachably arranged on the reserved mounting holes on the mounting plate 11 through the belt seat bearings 12.
It can be understood that the positions of the water-passing cooling roller 18 and the surface rubber covered roller 19 located outside the mounting plate 11 are correspondingly provided with a group of driving wheel sets 16, one side of each driving wheel set 16 is correspondingly provided with a group of driving motor sets 17, and the driving motor sets can drive through belt pulleys and synchronous belt pulleys to drive the water-passing cooling roller 18 and the surface rubber covered roller 19 to rotate, and in addition, the outer side of a shaft head at one end of the water-passing cooling roller 18 is correspondingly provided with a rotary joint 20, so that the water-passing cooling roller 18 can be communicated with an external water supply end through the rotary joint 20, thereby cooling water is circularly supplied, and the film is cooled for three times.
The bottom of the seat bearing 12 inside the end part of the surface rubber covered roller 19 at the bottom layer is provided with a group of circular sliding guide rails 21 through a side moving plate, so that the horizontal sliding of the surface rubber covered roller 19 is realized, the distance between the water cooling roller 18 and the surface rubber covered roller 19 is adjusted, two groups of tensioning cylinders 22 are correspondingly arranged below the guide rails and used for tensioning the surface rubber covered roller 19 inwards or outwards, and correspondingly, the top of the seat bearing 12 inside the end part of the surface rubber covered roller 19 is also provided with a rotary screw 23, and the rubber covered roller group is limited through a knob at the end part of the rotary screw 23.
Further, two groups of unpowered hard rollers 3 made of metal materials are arranged outside the unpowered transmission roller 203 in parallel for carrying out film penetrating and conveying of heavy film coating, a group of follow-up hard rollers 4 are correspondingly arranged at the top of the unpowered hard roller 3 through a movable connecting frame, and two groups of follow-up air cushion rollers 5 are correspondingly arranged at the top of the unpowered transmission roller 203 through a fixed connecting frame. Specifically, one group of unpowered hard rollers 3 is tangent to the parallel surface of the unpowered transmission roller 203, and the other group of unpowered hard rollers 3 is tangent to the parallel surface of the follow-up air cushion roller 5.
The film is fed from the bottom, firstly, the film is guided and cooled once through a driven power transmission roller at the bottom, then is pulled and cooled twice through a main power transmission roller at the middle part, then is guided and cooled three times through an unpowered transmission roller at the top, and finally is guided and pulled through a follow-up hard roller and a follow-up air cushion roller, and the winding angle of the film is adjusted by matching with a rotating assembly.
With continued reference to fig. 1-6, in this embodiment, an upper layer rotating support seat 6 is disposed on the top of the rotating drum 2, and two sets of rotating gear sets 7 are disposed on the top and bottom of the upper layer rotating support seat 6 corresponding to the same axis. Specifically, the bottom swing gear set 7 includes a first gear and a second gear, and the top swing gear set 7 includes a third gear and a fourth gear.
Furthermore, one side of the rotary gear set 7 is vertically provided with a reversing box 8, and the height of the reversing box is positioned between the two groups of rotary gear sets 7. In particular, the gear ratio of the reversing box 8 is 1:1, only for changing direction.
It should be noted in detail that the rotation angle range of the bottommost rotation support gear 1 is ±180°, the rotation angle range of the first gear and the rotation support base is ±90°, the rotation angle range of the second gear and the following air cushion roller 5 mounted on the second gear external fixed connection frame is ±135°, the rotation angle range of the reversing box 8 and the following hard roller 4 mounted on the movable connection frame is ±90°, and the rotation angle range of the third gear and the following air cushion roller 5 mounted on the third gear external fixed connection frame is ±45°.
It can be understood that in the film blowing process, the film bubble may have irregular raised or recessed "rib-bursting" phenomenon on the film surface due to uneven thickness, and the film can run in the radial direction through the rotary die opening and the rotary motion corresponding to the rotary roller 2, so as to eliminate the "rib-bursting" phenomenon caused by uneven film bubble thickness;
In addition, the rotation angle range of the bottommost rotary support gear 1 is +/-180 degrees, so that the strength and uniformity of the plastic film can be enhanced. Through rotary motion, the film can evenly bear force in all directions to improve its mechanical properties and appearance quality, through the rotation angle and the tension size of accurate control multiunit traction roller, ensure that the film keeps suitable elasticity when the rolling, avoid appearing elasticity limit and big first scheduling problem, finally ensure the steady operation of film in the rolling process, thereby protect the film not damaged.
According to the technical scheme, the driving motor group drives the plurality of groups of rotating rollers through the belt transmission driving wheel group, the rotating rollers are matched with the follow-up rollers to draw and stretch the film, the rotating supporting gear at the bottom and the rotating driving gear at the top are matched with the reversing box to rotate, so that the rotation and the drawing in the film blowing process are accurately controlled, stable drawing speed and tension of the film in the production process can be ensured, the uniformity and consistency of the film are improved, the physical performance of the film is further optimized, the cooling time and the production period of the film can be reduced, the speed of a production line is further improved, flexible adjustment can be performed according to different production requirements, various film specifications can be adapted, and the flexibility and the adaptability of the production line are improved.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The rotary traction mechanism for the re-packaging film blowing is characterized by comprising a rotary supporting gear, wherein a plurality of groups of rotary rollers which are arranged in parallel are arranged above the rotary supporting gear;
The rotary roller comprises a passive force transmission roller, a main force transmission roller and an unpowered transmission roller, wherein an unpowered hard roller is arranged on the outer side of the unpowered transmission roller, a follow-up hard roller is arranged at the top of the unpowered hard roller, and a follow-up air cushion roller is arranged at the top of the unpowered transmission roller;
The top of the rotary roller is provided with an upper layer rotary supporting seat, the top and the bottom of the upper layer rotary supporting seat are coaxially provided with a rotary gear set, and one side of the rotary gear set is provided with a reversing box.
2. The rotary drawing mechanism for film blowing in a heavy bag according to claim 1, wherein a rotary drive gear is provided on one side of the rotary support gear, and a rotary drive motor is provided on one side of the drive gear.
3. The rotary drawing mechanism for film blowing in heavy packets according to claim 2, wherein the top of the rotary support gear is symmetrically provided with a mounting plate, and the end of the rotary roller is detachably mounted on the mounting plate.
4. The rotary drawing mechanism for the re-packaging film blowing according to claim 3, wherein the end parts of the rotary rollers are symmetrically provided with a bearing with a seat, and the rotary rollers are detachably connected with the mounting plate through the bearing with a seat.
5. The rotary traction mechanism for the re-packaging film blowing according to claim 4, wherein a circular assembly plate is arranged in the middle of the mounting plate, and the outer side of the end part of the main power transmission roller is detachably connected with the circular assembly plate on the mounting plate through a bearing with a seat.
6. The rotary drawing mechanism for re-packaging film blowing according to claim 5, wherein a supporting tube is arranged at the top of the inner side of the circular assembly plate, and an unpowered hard roller is arranged at the bottom of the inner side of the circular assembly plate.
7. The rotary traction mechanism for the re-packaging film blowing according to claim 5, wherein a bevel gear is arranged on the inner side of the circular assembly plate, a driving wheel set is arranged on the outer side of the assembly plate, driving motor sets are arranged on two sides of the driving wheel set, and output ends of the driving motor sets are rotationally connected with the driving wheel set through a synchronous belt.
8. The rotary traction mechanism of re-bagging film blowing according to claim 1, wherein the main power transmission roller is arranged between the driven power transmission roller and the unpowered transmission roller, the driven power transmission roller comprises a water passing cooling roller and a surface rubber covered roller which are arranged in parallel, the main power transmission roller comprises two groups of water passing cooling rollers which are arranged in parallel, and the unpowered transmission roller comprises a water passing cooling roller and a surface rubber covered roller which are arranged in parallel.
9. The rotary drawing mechanism for re-packaging film blowing according to claim 8, wherein a rotary joint is arranged on the outer side of the end part of the water cooling roller, and the water cooling roller is communicated with an external water supply end through the rotary joint.
10. The rotary traction mechanism for film blowing in a heavy bag according to claim 8, wherein the outer side of the end part of the surface rubber covered roller is rotationally connected with the driving wheel group, a sliding guide rail is arranged at the bottom of a seat bearing on the inner side of the end part of the surface rubber covered roller, a tensioning cylinder is arranged below the guide rail, and a rotary screw is arranged at the top of the seat bearing on the inner side of the end part of the surface rubber covered roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520966654.3U CN224170472U (en) | 2025-05-15 | 2025-05-15 | A rotary traction mechanism for blown film packaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520966654.3U CN224170472U (en) | 2025-05-15 | 2025-05-15 | A rotary traction mechanism for blown film packaging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN224170472U true CN224170472U (en) | 2026-04-28 |
Family
ID=99537490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202520966654.3U Active CN224170472U (en) | 2025-05-15 | 2025-05-15 | A rotary traction mechanism for blown film packaging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN224170472U (en) |
-
2025
- 2025-05-15 CN CN202520966654.3U patent/CN224170472U/en active Active
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