Plastic film processing tension adjusting structure
By designing a plastic film processing structure including multiple rollers and drive devices, the problem of diaphragm position shift when a single down-pressing roller adjusts tension is solved, and the smooth stretching of the plastic film and extensive tension adjustment are achieved, ensuring that Packaging quality.
Patent Information
- Application Number
- CN202420246997.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-01
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-02-01
AI Technical Summary
During the plastic film processing, when a single down roller adjusts the tension of the plastic film, it is easy to cause the diaphragm to shift, causing side folds and folding during transportation.
A structure consisting of two sets of first bottom columns, conveying rollers, rotating plates, transmission columns, adjustment rollers and pressure rollers is designed. The two adjustment rollers can simultaneously perform circular motions in opposite directions, plastics Both ends of the membrane are stretched at the same time, and the position of the pressure roller is adjusted through an electric push rod to expand the adjustment range of tension.
The smooth stretching and tension adjustment of the plastic film is achieved, avoiding the position shift of the diaphragm and the side folds, expanding the range of tension adjustment, and ensuring packaging quality.
Smart Images
Figure CN222523810U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plastic film processing, in particular to a plastic film processing tension regulating structure. Background Art
[0002] With the advancement of science and technology and the improvement of consumption levels, consumers will pay more attention to product packaging, especially the outer packaging of high-end products. The beauty and refinement of the outer packaging directly affect the acceptance of consumers. In the field of packaging of goods, plastic film packaging is the only one. Plastic film is made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins. It is used for packaging and as a coating layer. Plastic packaging and plastic packaging products occupy an increasingly large share in the market, especially composite plastic flexible packaging, which has been widely used in food, medicine, chemical industry and other fields. Among them, food packaging accounts for the largest proportion, such as beverage packaging, quick-frozen food packaging, steamed food packaging, fast food packaging, etc. These products have brought great convenience to people's lives. In the processing of plastic film, During the conveying process, the plastic film passes through multiple rollers and is then tightened. Under the pull of the winding roller, the plastic film can be tightened. When winding different plastic films, it is necessary to adjust the tension of the plastic film to ensure the packaging quality of the product. Generally, the tension of the plastic film is adjusted by adjusting the downward pressure generated by a single lower pressure roller on the plastic film. Under the action of adjusting the lower pressure roller, the stretching of the plastic film is adjusted, and then the tension of the plastic film is adjusted. However, under the action of a single lower pressure roller, when the downward pressure is applied to the plastic film, the plastic film is very likely to shift in position under the action of the downward pressure, which will cause the plastic film to move to one side, resulting in wrinkles on the side of the plastic film, and then the plastic film will fold together when it is conveyed. For this reason, we propose a plastic film processing tension adjustment structure. Utility Model Content
[0003] The utility model provides a plastic film processing tension regulating structure, which solves the problems raised by the above-mentioned background technology.
[0004] To achieve the above purpose, the utility model is implemented through the following technical scheme: a plastic film processing tension adjustment structure, including two groups of first bottom columns, a conveying roller is movably sleeved on the inner side of the top of each group of first bottom columns, a fixed base is fixed to the outer side of the two groups of the first bottom columns, and two symmetrical rotating plates are movably sleeved on the inner sides of the two fixed bases, and a transmission column is fixed on the inner side of the rotating plate, a limiting plate is fixed at one end of the transmission column, an adjusting roller is commonly fixed on one side of each two limiting plates, and a second bottom column is fixed on the inner side of the two fixed bases, a fixed bracket is arranged on the top of the two second bottom columns, and a pressure roller is movably sleeved between the two fixed brackets.
[0005] Optionally, a plastic film is arranged between the adjusting roller, the conveying roller and the pressure roller, and the bottom of the plastic film contacts the top of the conveying roller, the top of the plastic film contacts the bottom of the adjusting roller, and the top of the plastic film contacts the top of the pressure roller.
[0006] Optionally, the three structural members of the adjusting roller, the conveying roller and the pressure roller are the pressure roller, the adjusting roller and the conveying roller from the middle to the two sides.
[0007] Optionally, the transmission column is fixed at a position eccentric to the center of the rotating plate, and gears are fixed on the outer sides of the two transmission columns extending into the interior of the fixed base.
[0008] Optionally, both sides of the two gears are movably sleeved with the inner wall of the fixed base, and the two gears are meshed.
[0009] Optionally, a motor is fixed to the outside of the fixed base, and the output shaft of the motor passes through the fixed base, extends into the inside of the fixed base, and is fixed to the center of one of the gears.
[0010] Optionally, a connecting column is fixed at the center of the inner side of the rotating plate, and a fixing block is movably sleeved on one end of the connecting column, and one end of the fixing block is fixed to the second bottom column.
[0011] Optionally, a limiting column is fixed to the top of the fixed block, and every two limiting columns are movably connected to a fixed bracket, a slot is opened on one of the second base columns, and an electric push rod is fixed in the slot, and the top of the electric push rod is fixed to the bottom of the fixed bracket.
[0012] The utility model has the following beneficial effects:
[0013] 1. The plastic film processing tension adjustment structure enables two gears to rotate in opposite directions at the same time under the drive of the output shaft of the motor. Under the drive of the gears, the rotating plate can rotate, and then through the transmission of the transmission column, the two adjustment rollers can simultaneously perform circular motions in opposite directions, so that both ends of the plastic film can be stretched at the same time. Both ends of the plastic film can be stressed at the same time, which is conducive to the smooth stretching of the plastic film, and then the plastic film can be smoothly adjusted in tension, thereby ensuring that the plastic film can be smoothly adjusted in tension.
[0014] 2. The plastic film processing tension adjustment structure enables the fixed bracket to move in the vertical direction along the limiting column under the telescopic action of the electric push rod. Driven by the fixed bracket, the pressure roller can move in the vertical direction, and then the tension of the plastic film is adjusted. With the cooperation of the two adjusting rollers, the tension adjustment range is wider, thereby making it more applicable.
[0015] 3. The plastic film processing tension adjustment structure meshes with two gears, so that the two gears can rotate in opposite directions, and then the two adjusting rollers can make circular motions in opposite directions, and both adjusting rollers can stretch the plastic film, and then the two adjusting rollers can adjust the tension of the plastic film at the same time, which expands the adjustable range of the adjusting rollers, making the adjustment range of the adjusting rollers wider, thereby making it more applicable. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the structure of the utility model;
[0017] Figure 2 It is a schematic diagram of the structure of the utility model in cross section;
[0018] Figure 3 This is a schematic diagram of the structure of the pressure roller connection of the utility model;
[0019] Figure 4 This is a schematic diagram of the structure of the gear connection of the utility model;
[0020] Figure 5 This is a schematic diagram of the structure of the electric push rod connection of the utility model;
[0021] Figure 6 It is a structural schematic diagram of the transmission column connection of the utility model.
[0022] In the figure: 1. first base column; 2. plastic film; 3. fixed base; 4. motor; 5. fixed bracket; 6. limiting column; 7. adjusting roller; 8. conveying roller; 9. second base column; 10. pressure roller; 11. limiting plate; 12. gear; 13. rotating plate; 14. fixed block; 15. electric push rod; 16. transmission column. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] See also Figures 1 to 6A plastic film processing tension adjustment structure comprises two groups of first bottom columns 1, the two groups of first bottom columns 1 are symmetrical with the second bottom column 9 as the center, a conveying roller 8 is movably sleeved on the inner side of the top of each group of first bottom columns 1, and under the limitation of the first bottom columns 1, the conveying roller 8 can be in a fixed position for rotation, thereby ensuring the smooth transportation of the plastic film, a fixed base 3 is fixed on the outer side of the two groups of first bottom columns 1, and two symmetrical rotating plates 13 are movably sleeved on the inner sides of the two fixed bases 3, and under the limitation of the fixed base 3, the rotating plate 13 can be in a fixed position for rotation, and a transmission column 16 is fixed on the inner side of the rotating plate 13, and under the drive of the rotating plate 13, the transmission column 16 can rotate in a circular motion, and a limiting plate 11 is fixed on one end of the transmission column 16, and under the drive of the transmission column 16, the limiting plate 11 can The plastic film 2 is limited by the limiting plate 11 so that the plastic film 2 will not easily move, thereby ensuring that the tension of the plastic film 2 can be adjusted smoothly. An adjusting roller 7 is fixed on one side of each of the two limiting plates 11. Driven by the limiting plate 11, the adjusting roller 7 can rotate in a circular motion, thereby adjusting the tension of the plastic film 2. A second bottom column 9 is fixed on the inner side of the two fixed bases 3, and a fixed bracket 5 is provided on the top of the two second bottom columns 9. When the fixed bracket 5 moves, the height of the middle of the plastic film 2 can be adjusted, thereby expanding the adjustable range of the tension. A pressure roller 10 is movably sleeved between the two fixed brackets 5. Under the limitation of the fixed bracket 5, the pressure roller 10 can rotate in a fixed position.
[0025] See also Figures 1 to 3 A plastic film 2 is arranged between the adjusting roller 7, the conveying roller 8 and the pressure roller 10, and the bottom of the plastic film 2 contacts the top of the conveying roller 8, the top of the plastic film 2 contacts the bottom of the adjusting roller 7, and the top of the plastic film 2 contacts the top of the pressure roller 10. Under the action of the adjusting roller 7, the conveying roller 8 and the pressure roller 10, the plastic film 2 can be tightened, and then the tension of the plastic film 2 can be adjusted.
[0026] See also Figures 1 to 3 The three structural parts of the adjusting roller 7, the conveying roller 8 and the pressure roller 10 are the pressure roller 10, the adjusting roller 7 and the conveying roller 8 from the middle to the two sides. The two adjusting rollers 7 and the two conveying rollers 8 are symmetrical with the pressure roller 10 as the center, so that the plastic film 2 can be stretched smoothly.
[0027] See also Figures 1 to 6The transmission column 16 is fixed at a position eccentric to the center of the rotating plate 13. Under the rotation of the rotating plate 13, the transmission column 16 can perform a circular motion. The outer sides of the two transmission columns 16 extending into the interior of the fixed base 3 are fixed with gears 12. Driven by the gears 12, the transmission columns 16 can rotate in a circular motion.
[0028] See also Figures 1 to 6 Both sides of the two gears 12 are movably connected to the inner wall of the fixed base 3. Under the limitation of the fixed base 3, the two gears 12 can rotate in a fixed position, and the two gears 12 are meshed, so that the two gears 12 can rotate relative to each other.
[0029] See also Figures 1 to 4 A motor 4 is fixed to the outside of the fixed base 3, and the output shaft of the motor 4 passes through the fixed base 3 and extends into the interior of the fixed base 3 to be fixed to the center of one of the gears 12. Driven by the output shaft of the motor 4, the gear 12 can rotate, and the motor 4 is connected to a controller to control it. The controller and the motor 4 are both existing technologies and will not be described in detail here.
[0030] See also Figures 1 to 6 A connecting column is fixed at the center of the inner side of the rotating plate 13, and a fixing block 14 is movably sleeved on one end of the connecting column. Under the limitation of the fixing block 14, the connecting column can rotate in a fixed position, thereby limiting the rotating plate 13, and one end of the fixing block 14 is fixed to the second base column 9.
[0031] See also Figures 1 to 5 A limiting column 6 is fixed to the top of the fixed block 14, and every two limiting columns 6 are movably connected to a fixed bracket 5. Under the limitation of the two limiting columns 6, the fixed bracket 5 can move along a fixed track, so that the fixed bracket 5 can move in the vertical direction. A slot is opened on one of the second bottom columns 9, and an electric push rod 15 is fixed in the slot. The top of the electric push rod 15 is fixed to the bottom of the fixed bracket 5. Under the push of the electric push rod 15, the fixed bracket 5 can move in the vertical direction. The electric push rod 15 is a prior art and will not be described here.
[0032] In summary, when the plastic film processing tension adjustment structure is used, when adjusting the tension of the plastic film, the motor 4 is started, and the gear 12 is rotated under the drive of the output shaft of the motor 4, and then the two gears 12 can rotate in opposite directions, and the rotating plate 13 is rotated under the drive of the gear 12, and the transmission column 16 is driven by the rotating plate 13 to perform a circular motion, and the limiting plate 11 is driven by the transmission column 16 to drive the adjusting roller 7 to perform a circular motion, and then the adjusting roller 7 can control the force of pressing the plastic film 2, so as to adjust the tension of the plastic film 2, and under the action of the electric push rod 15, the fixed bracket 5 can move upward, and under the drive of the fixed bracket 5, the pressure roller 10 can drive the middle of the plastic film 2 to push up, so as to adjust the tension of the plastic film 2, and at the same time, under the cooperation with the adjusting roller 7, the tension adjustment range is wider.
[0033] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply 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 a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus.
[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A plastic film processing tension adjustment structure, comprising two groups of first bottom columns (1), wherein a conveying roller (8) is movably sleeved on the inner side of the top of each group of first bottom columns (1), characterized in that: A fixed base (3) is fixed on the outer side of each of the two groups of the first base columns (1), and two symmetrical rotating plates (13) are movably sleeved on the inner sides of the two fixed base columns (3), and a transmission column (16) is fixed on the inner side of the rotating plate (13), and a limiting plate (11) is fixed on one end of the transmission column (16), and an adjusting roller (7) is commonly fixed on one side of each of the two limiting plates (11), and a second base column (9) is fixed on the inner side of each of the two fixed base columns (3), and a fixed bracket (5) is provided on the top of each of the two second base columns (9), and a pressure roller (10) is movably sleeved between the two fixed brackets (5).
2. A plastic film processing tension adjustment structure according to claim 1, characterized in that: A plastic film (2) is arranged between the adjusting roller (7), the conveying roller (8) and the pressure roller (10), and the bottom of the plastic film (2) contacts the top of the conveying roller (8), the top of the plastic film (2) contacts the bottom of the adjusting roller (7), and the top of the plastic film (2) contacts the top of the pressure roller (10).
3. A plastic film processing tension adjustment structure according to claim 2, characterized in that: The three structural components of the adjusting roller (7), the conveying roller (8) and the pressure roller (10) are, from the middle to the two sides, the pressure roller (10), the adjusting roller (7) and the conveying roller (8).
4. A plastic film processing tension adjustment structure according to claim 1, characterized in that: The transmission column (16) is fixed at a position eccentric to the center of the rotating plate (13), and the outer sides of two transmission columns (16) extend into the interior of the fixed base (3) and are both fixed with gears (12).
5. A plastic film processing tension adjustment structure according to claim 4, characterized in that: Both sides of the two gears (12) are movably sleeved with the inner wall of the fixed base (3), and the two gears (12) are meshed with each other.
6. A plastic film processing tension adjustment structure according to claim 5, characterized in that: A motor (4) is fixed to the outside of the fixed base (3), and an output shaft of the motor (4) passes through the fixed base (3), extends into the interior of the fixed base (3), and is fixed to the center of one of the gears (12).
7. A plastic film processing tension adjustment structure according to claim 6, characterized in that: A connecting column is fixed at the center of the inner side of the rotating plate (13), and a fixing block (14) is movably sleeved on one end of the connecting column, and one end of the fixing block (14) is fixed to the second bottom column (9).
8. A plastic film processing tension adjustment structure according to claim 7, characterized in that: A limiting column (6) is fixed to the top of the fixed block (14), and every two limiting columns (6) are movably connected to a fixed bracket (5). A notch is provided on one of the second bottom columns (9), and an electric push rod (15) is fixed in the notch. The top end of the electric push rod (15) is fixed to the bottom end of the fixed bracket (5).