A rotating base mechanism for an upper traction rotary machine
By introducing roller grooves and roller structures into the rotating mechanism of the blown film machine, combined with a drive motor and trigger, the problems of rotational instability and uneven thickness were solved, realizing automatic control of the rotary table and uniform film thickness, and improving the film winding quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RUIAN XINYE PACKAGING MACHINE CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-06-30
AI Technical Summary
The existing blown film machine's upper rotating mechanism has instability and thickness uniformity issues during rotation, and cannot automatically control the forward and reverse rotation of the rotary table, resulting in uneven film thickness.
The rotary table automatically rotates in both directions by using a roller groove and roller structure, combined with a drive motor and trigger. The design of the roller groove and roller improves rotational stability, and the drive motor and chain system provide power to ensure the smooth operation of the rotary table.
This achieves stability and thickness uniformity of the rotary table, reduces shaking and resistance loss during rotation, and ensures improved film winding quality.
Smart Images
Figure CN224426491U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of blown film machine technology, specifically to a rotating base mechanism for an upper traction rotary machine. Background Technology
[0002] A blown film machine heats and melts plastic particles and then blows them into a thin bubble film. The cylindrical bubble film is cooled, folded, printed, sealed, and punched to form a packaging bag. Because the cylindrical bubble film extruded from the die of the blow molding machine has uneven thickness at each point, it produces thickness deviation. The upper rotating mechanism can ensure that the thickness of the film roll after winding is uniform, thus improving the winding quality.
[0003] Patent application CN220864767U discloses an upper rotating mechanism for a blown film machine, including a base frame and an upper rotating platform mounted on the base frame. The rotating platform includes a ring gear, a rotary motor on one side of the ring gear, a reducer connected to the rotary motor, a motor gear on the reducer meshing with the ring gear, a bearing ring on the inner wall of the ring gear, and an annular boss on the base frame. The bearing ring is fitted over the annular boss to reduce vibration during the rotation of the upper rotating platform and improve the rotational stability of the upper rotating platform. In this technology, the rotating platform is driven to rotate by the meshing of gears and motor gears. The linear gear has a large tooth gap and poor stability, which can easily lead to large lateral fluctuations in the film. At the same time, in order to ensure the uniformity of film thickness, the rotating platform usually needs to be repeatedly rotated in both directions. This technology requires manual control of the rotating platform and cannot achieve automatic control of the rotation of the rotating platform. Therefore, this technology still has some room for improvement. Summary of the Invention
[0004] The technical problem to be solved by this utility model is to provide a rotating base mechanism for an upper traction rotating machine, which addresses the shortcomings of the prior art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a rotating base mechanism for an upper traction rotating machine, comprising a base frame and a rotating platform rotatably mounted on the base frame, characterized in that: the rotating platform is provided with a roller groove around it, the base frame is provided with an installation groove along its inner wall on the side facing the rotating platform, the installation groove is provided with a plurality of mounting brackets for mounting rollers, and the rollers are placed in the roller groove.
[0006] The present invention, which has the above-mentioned features, has rollers placed in the roller grooves of the rotary table, making the rotation of the rotary table more stable and avoiding unstable situations such as left and right swaying. This allows the upper traction rotary machine to maintain smooth operation during the working process. The rolling friction of the rollers can effectively reduce the resistance during the rotation process and reduce the power consumption required for rotation.
[0007] A further feature of this invention is that the mounting frame includes a mounting part that is mounted to the mounting groove and a rotating part for mounting the rollers. The mounting part is fixedly connected to the mounting groove. The rollers include a first roller sleeved on one side of the rotating part, a second roller horizontally arranged at the top of the rotating part, and the bottom of the rotating platform abutting against the first roller. The second roller is placed in the roller groove, which enables the first roller and the second roller to drive the rotating platform to rotate.
[0008] The present invention, which has the above features, is divided into a mounting part that is fixedly connected to the mounting groove and a rotating part for mounting rollers. The first roller is sleeved on one side of the rotating part and abuts against the bottom of the rotating table. The second roller is horizontally set on the top of the rotating part and placed in the roller groove, providing support and rotational power for the rotating table, effectively reducing swaying and offset during rotation, and also dispersing the pressure generated during rotation.
[0009] A further feature of this invention is that: the rotating part is provided with a first rotating shaft on the side facing the rotating table, the first roller is sleeved on the first rotating shaft, the top of the rotating end is provided with a mounting plate, the two ends of the mounting plate are vertically inserted with a second rotating shaft, a first rotary bearing is provided between the first rotating shaft and the first roller, the second shaft is sleeved with a second rotary bearing, the second rotary bearing abuts against the outer periphery of the rotating table, the second roller is sleeved on the second rotating shaft and placed on the upper end of the second rotary bearing, and the second roller is placed in the roller groove.
[0010] The present invention, which has the above-mentioned features, provides a first rotary bearing between the first rotating shaft and the first roller, and a second rotary bearing is sleeved on the second rotating shaft, which greatly reduces the frictional resistance between the components, allowing the first roller and the second roller to rotate flexibly. The first roller is sleeved on the first rotating shaft, the second roller is sleeved on the second rotating shaft, and the second roller is placed in the roller groove, which ensures the stable support of the rotating table during the rotation process and reduces swaying and offset.
[0011] A further feature of this invention is that: a drive motor capable of driving a rotary table is provided on one side of the base frame; a cover is provided on the surface of the rotary table; a plurality of trigger blocks are provided on the surface of the cover; and a trigger is provided on the surface of the base frame that abuts against the trigger blocks and triggers the motor; the trigger is capable of controlling the forward and reverse rotation of the drive motor.
[0012] The present invention, which has the above-mentioned features, provides a power source for the rotating table by setting the drive motor, thereby realizing the automatic rotation of the rotating table. When the rotating table rotates and the trigger block on the cover comes into contact with the trigger on the base frame, the direction of the motor can be automatically changed, thus ensuring the uniformity of the film thickness.
[0013] A further feature of this invention is that a drive shaft is provided on one side of the mounting groove, the drive shaft is connected to a drive motor, a plurality of drive sprockets are provided at the end of the drive shaft, a plurality of drive chains are fitted around the outer periphery of the rotary table, and the drive connection is connected to the drive chains to enable the drive motor to drive the rotary table to rotate.
[0014] The present invention, which has the above-mentioned features, has a drive motor connected to a drive sprocket via a drive shaft, and the drive sprocket is connected to a drive chain on the outer periphery of the rotary table, enabling the rotary table to rotate and ensuring the normal operation of the upper traction rotary machine.
[0015] A further feature of this invention is that: both ends of the second rotating shaft are provided with abutment blocks, which abut against the mounting plate and the second roller respectively.
[0016] The present invention, which has the above-mentioned features, has abutment blocks at both ends of the second rotating shaft that abut against the mounting plate and the second roller respectively. This effectively restricts the axial displacement of the second roller, ensuring that it maintains a stable position during rotation. The presence of the abutment blocks makes the contact between the second roller and the mounting plate more uniform, avoids local stress concentration, reduces wear between components, and extends the service life of the second roller and the mounting plate.
[0017] A further feature of this invention is that the mounting part is provided with an adjustment groove, and the mounting groove is provided with a mounting hole for connection with the adjustment groove.
[0018] The present invention having the above features: the mounting part is provided with an adjustment groove and a mounting hole connected to the adjustment groove is opened in the mounting groove, and the mounting part can adjust the mounting position according to actual needs.
[0019] The beneficial effects of this utility model are: by setting rollers and roller grooves, the rotation of the rotary table is made more stable, avoiding unstable situations such as left and right swaying, and allowing the upper traction rotary machine to maintain stable operation during the working process.
[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description
[0021] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.
[0022] Figure 2 This is a schematic diagram of the internal structure of an embodiment of the present utility model.
[0023] Figure 3 This is a schematic diagram of the pressure mounting bracket structure according to an embodiment of the present utility model.
[0024] Figure 4 This is a schematic diagram of the structure of the pressure drive motor in an embodiment of this utility model.
[0025] Label annotations: 1-Base frame, 2-Rotating table, 3-Roller groove, 4-Mounting groove, 5-Mounting bracket, 6-Mounting part, 7-Rotating part, 8-First roller, 9-Second roller, 10-First rotating shaft, 11-Mounting plate, 12-Second rotating shaft, 13-First rotary bearing, 14-Second rotary bearing, 15-Drive motor, 16-Cover, 17-Trigger block, 18-Trigger, 19-Drive shaft, 20-Drive sprocket, 21-Drive chain, 22-Abutment block, 23-Adjusting groove, 24-Mounting hole. Detailed Implementation
[0026] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
[0027] like Figure 1-4The present invention provides the following technical solution: a rotating base mechanism for an upper traction rotating machine, including a base frame 1 and a rotating platform 2 rotatably mounted on the base frame 1. The rotating platform 2 is surrounded by roller grooves 3. The base frame 1 has mounting grooves 4 along its inner wall on the side facing the rotating platform 2. The mounting grooves 4 are provided with several mounting brackets 5 for mounting rollers. The rollers are placed in the roller grooves 3 of the rotating platform 2, making the rotation of the rotating platform 2 more stable and avoiding instability such as left-right swaying. This allows the upper traction rotating machine to maintain stable operation during work. The rolling friction of the rollers effectively reduces the friction during rotation. The mounting bracket 5 includes a mounting part 6 that is mounted to the mounting groove 4 and a rotating part 7 for mounting the rollers. The mounting part 6 is fixedly connected to the mounting groove 4. The rollers include a first roller 8 sleeved on one side of the rotating part 7, and a second roller 9 horizontally arranged on the top of the rotating part 7. The bottom of the rotating table 2 abuts against the first roller 8. The second roller 9 is placed in the roller groove 3, which enables the first roller 8 and the second roller 9 to drive the rotating table 2 to rotate. The mounting bracket 5 is divided into a mounting part 6 fixedly connected to the mounting groove 4 and a rotating part 7 for mounting the rollers. The first roller 8 is sleeved on one side of the rotating part 7 and a rotating part 7 for mounting the rollers. The bottom of the platform 2 abuts against the rotating part 7, and the second roller 9 is horizontally positioned on the top of the rotating part 7 and placed in the roller groove 3, providing support and rotational power for the rotating platform 2. This effectively reduces swaying and offset during rotation and also disperses the pressure generated during rotation. The rotating part 7 has a first rotating shaft 10 on the side facing the rotating platform 2, and the first roller 8 is sleeved on the first rotating shaft 10. The top of the rotating end has a mounting plate 11, and the two ends of the mounting plate 11 are vertically inserted through the second rotating shaft 12. A first rotary bearing 13 is provided between the first rotating shaft 10 and the first roller 8, and a second rotating bearing 14 is sleeved on the second shaft. The second rotating bearing 14 is connected to the outer periphery of the rotating platform 2. The second roller 9 is fitted onto the second rotating shaft 12 and placed on the upper end of the second rotary bearing 14. The second roller 9 is placed in the roller groove 3. The first rotary bearing 13 is set between the first rotating shaft 10 and the first roller 8, and the second rotary bearing 14 is fitted onto the second rotating shaft 12. This greatly reduces the frictional resistance between the components, allowing the first roller 8 and the second roller 9 to rotate flexibly. The first roller 8 is fitted onto the first rotating shaft 10, and the second roller 9 is fitted onto the second rotating shaft 12. The second roller 9 is placed in the roller groove 3, ensuring stable support of the rotating table 2 during rotation and reducing swaying and offset.
[0028] like Figure 1-4The present invention provides the following technical solution: a rotating base mechanism for an upper traction rotating machine. A drive motor 15 capable of driving a rotating platform 2 is provided on one side of the base frame 1. A cover 16 is provided on the surface of the rotating platform 2, and several trigger blocks 17 are provided on the surface of the cover 16. A trigger 18 abutting against the trigger blocks 17 is provided on the surface of the base frame 1. The trigger 18 can control the forward and reverse rotation of the drive motor 15. The drive motor 15 provides a power source for the rotating platform 2, enabling automatic rotation of the rotating platform 2. When the rotating platform 2 rotates, causing the trigger blocks 17 on the cover 16 to abut against the trigger 18 on the base frame 1, the direction of the motor can be automatically changed, ensuring uniform film thickness. A drive shaft 19 is provided on one side of the mounting groove 4, and the drive shaft 19 is connected to the drive motor 15. Several drive sprockets 20 are provided at the end of the drive shaft 19. Several drive chains 21 are sleeved around the outer periphery of the rotating platform 2. The drive connection is connected to the drive chains 21, enabling the drive motor 15 to drive the rotating platform 2 to rotate. The drive motor 15 drives the rotating platform 2 through the drive shaft. 19 is connected to the drive sprocket 20, which in turn is connected to the drive chain 21 on the outer periphery of the rotary table 2, enabling the rotary table 2 to rotate and ensuring the normal operation of the upper traction rotary machine. Both ends of the second rotating shaft are provided with abutment blocks 22, which abut against the mounting plate 11 and the second roller 9 respectively. The abutment blocks 22 at both ends of the second rotating shaft abut against the mounting plate 11 and the second roller 9 respectively, which can effectively limit the axial displacement of the second roller 9 and ensure that it maintains a stable position during rotation. The presence of the abutment blocks 22 makes the contact between the second roller 9 and the mounting plate 11 more uniform, avoids local stress concentration, reduces wear between components, and extends the service life of the second roller 9 and the mounting plate 11. The mounting part 6 is provided with an adjustment groove 23, and the mounting groove 4 is provided with a mounting hole 24 that connects to the adjustment groove 23. The mounting part 6 is provided with an adjustment groove 23 and the mounting groove 4 is provided with a mounting hole 24 that connects to the adjustment groove 23. The mounting part 6 can adjust the installation position according to actual needs.
[0029] The beneficial effects of this utility model are: by setting the rollers and roller grooves 3, the rotation of the rotary table 2 is made more stable, avoiding unstable situations such as left and right swaying, and allowing the upper traction rotary machine to maintain stable operation during the working process.
Claims
1. A rotating base mechanism for an upper traction rotary machine, comprising a base frame and a rotating platform rotatably mounted on the base frame, characterized in that: The rotating platform is surrounded by roller grooves, and the base frame is surrounded by mounting grooves along the inner wall on the side facing the rotating platform. The mounting grooves are provided with several mounting brackets for mounting the rollers, and the rollers are placed in the roller grooves.
2. The rotating base mechanism of an upper traction rotary machine according to claim 1, characterized in that: The mounting bracket includes a mounting part that is mounted to the mounting groove and a rotating part for mounting rollers. The mounting part is fixedly connected to the mounting groove. The rollers include a first roller sleeved on one side of the rotating part, a second roller horizontally arranged on the top of the rotating part, and the bottom of the rotating platform abutting against the first roller. The second roller is placed in the roller groove, which enables the first roller and the second roller to drive the rotating platform to rotate.
3. The rotating base mechanism of an upper traction rotary machine according to claim 2, characterized in that: The rotating part is provided with a first rotating shaft facing the rotating table. The first roller is sleeved on the first rotating shaft. The top of the rotating end is provided with a mounting plate. The two ends of the mounting plate are vertically inserted with second rotating shafts. A first rotary bearing is provided between the first rotating shaft and the first roller. The second shaft is sleeved with the second rotary bearing. The second rotary bearing abuts against the outer periphery of the rotating table. The second roller is sleeved on the second rotating shaft and placed on the upper end of the second rotary bearing. The second roller is placed in the roller groove.
4. The rotating base mechanism of an upper traction rotary machine according to any one of claims 1-3, characterized in that: The base frame is equipped with a drive motor capable of driving the rotary table on one side. The rotary table is covered with a cover on its surface. A gap is formed between the cover and the base frame. A trigger block is provided in the cover within the gap. A trigger is provided on one side of the base frame that abuts against the trigger block and triggers the motor. The trigger can control the forward and reverse rotation of the drive motor.
5. The rotating base mechanism of an upper traction rotary machine according to claim 4, characterized in that: A drive shaft is provided on one side of the mounting slot. The drive shaft is connected to a drive motor. Several drive sprockets are provided at the end of the drive shaft. Several drive chains are fitted around the outer periphery of the rotary table. The drive connection is connected to the drive chains to enable the drive motor to drive the rotary table to rotate.
6. The rotating base mechanism of an upper traction rotary machine according to claim 4, characterized in that: The second rotating shaft has abutment blocks at both ends, which abut against the mounting plate and the second roller respectively.
7. The rotating base mechanism of an upper traction rotary machine according to any one of claims 1-3, characterized in that: The mounting part is provided with an adjustment groove, and the mounting groove is provided with a mounting hole for connection with the adjustment groove.