Plastic packaging bag placing device
By using the first tight roller and the second tight roller in the plastic packaging bag, adjust the tension of the plastic film, solve the problem of insufficient film tension caused by folds, and realize the stability and subsequent process of the bag placing process. Continuousness.
Patent Information
- Application Number
- CN202323578476.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-27
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2033-12-27
AI Technical Summary
During the plastic bag production process, as the rolled plastic film becomes smaller and the weight is reduced, the film is insufficient, which easily leads to wrinkles on the surface, affecting the subsequent cutting and printing process.
Designed a plastic packaging bag bag and putting the bag. The combination of the first tightening roller and the second tight roller is used. By tighten the motor and screw mechanism, the tension of the plastic film is adjusted to adjust the tension of the plastic film. Avoid folds.
Effectively avoid the surface of the plastic film during the pocket of the bag, ensure the smooth progress of the subsequent process, at the same time reduce the traction of the outside world, and avoid the deformation caused by the excessive tight plastic film.
Smart Images
Figure CN222410409U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plastic bags, in particular to a plastic packaging bag placing device. Background Art
[0002] Plastic bags are bags made of common plastics such as polypropylene, polyester, nylon, etc. as the main raw materials. They are indispensable items in people's daily lives and are often used to hold other items. They are widely used because of their advantages of being cheap, extremely light, large capacity, and easy to store.
[0003] In the process of plastic bag production, bag unwinding is required in many processes such as cutting and printing. The rolled plastic film is wound on the unwinding roller. When unwinding the bag, the unwinding roller is driven by a servo motor to rotate, and at the same time, an external traction device pulls the plastic film at the front end for unwinding. Usually, multiple guide rollers are arranged between the unwinding roller and the traction device for guidance.
[0004] In the process of continuously placing bags, the rolled plastic film becomes smaller and lighter. At this time, the tension of the plastic film will gradually become insufficient, causing wrinkles on the surface of the plastic film during the bag placing process, affecting the subsequent cutting and printing processes. Utility Model Content
[0005] The utility model provides a plastic packaging bag placing device, which is provided with a first tensioning roller and a second tensioning roller, which can simultaneously play the role of guiding and adjusting the tension. While the plastic film is continuously reduced in size and weight, the first tensioning roller and the second tensioning roller are continuously moved to increase the tension of the plastic film, thereby avoiding wrinkles on the surface of the plastic film during the bag placing process.
[0006] A plastic packaging bag placing device of the utility model:
[0007] The invention comprises a bottom plate and a vertical plate, wherein the two vertical plates are symmetrically fixed on the bottom plate, and the characteristics are as follows: a reeling roller, an auxiliary pulling roller and a lead-out roller are sequentially arranged on the vertical plate along the pulling direction of the plastic bag, and the reeling roller and the auxiliary pulling roller are both rotatably mounted on the vertical plate, a first motor is fixed on the side of the vertical plate to drive the reeling roller to rotate, and a second motor is fixed on the side of the vertical plate to drive the auxiliary pulling roller to rotate, and a tensioning device for adjusting the tension of the plastic film is arranged between the auxiliary pulling roller and the lead-out roller, the tensioning device comprises a first tensioning roller, a second tensioning roller, a tensioning motor and a screw, and the two ends of the first tensioning roller and the second tensioning roller are connected and fixed as a whole through a U-shaped tube, the first tensioning roller and the second tensioning roller are synchronously slidably assembled on the vertical plate, a connecting column is fixed on the outer side of the middle part of the second tensioning roller, the tensioning motor is fixed on the bottom plate, the screw is coaxially connected to the tensioning motor and the screw is screwed inside the connecting column, a column is arranged on the outer side of the two vertical plates, the column is fixed on the bottom plate, and the lead-out roller is rotatably mounted on the top of the column.
[0008] Furthermore, the U-shaped tube is a hollow tube, the outer ends of the first tensioning roller and the second tensioning roller are respectively inserted into two straight sections of the U-shaped tube, and the connection between the U-shaped tube and the two guide rollers is fixed by bolts.
[0009] Furthermore, a downward inclined slide is provided on the vertical plate, and both ends of the first tensioning roller and the second tensioning roller are installed in the slides on both sides. A clamping sleeve is provided at the connecting section between the first tensioning roller and the slide. The clamping sleeve is flange-shaped as a whole, including a connecting sleeve and a retaining ring at the bottom of the mounting sleeve. The connecting sleeve and the retaining ring are integrally formed. Two clamping sleeves are provided, which are respectively sleeved on the first guide roller on both sides of the vertical plate. The connecting sleeve is fixed to the first tensioning roller by bolts, and the two retaining rings on the left and right of the vertical plate cooperate to clamp the first tensioning roller and fix it in the slide.
[0010] Furthermore, the second tensioning roller is also provided with a retaining sleeve, and its installation position and connection method are the same as those of the retaining sleeve on the first tensioning roller.
[0011] Furthermore, two lead-out rollers are provided, the two lead-out rollers are installed side by side between two columns, and the two lead-out rollers are rotatably installed on the columns.
[0012] Compared with the prior art, the beneficial technical effects of the utility model are:
[0013] 1. By setting the first tensioning roller and the second tensioning roller, it can play the role of guiding and adjusting the tension at the same time. While the plastic film is getting smaller and lighter, the first tensioning roller and the second tensioning roller are constantly moving to increase the tension of the plastic film, so as to avoid wrinkles on the surface of the plastic film during the bag placing process;
[0014] 2. By setting the first motor to drive the unwinding roller to rotate, and the second motor to drive the auxiliary pulling roller to rotate, when placing the bag, the unwinding roller and the driving roller can actively rotate with the bag placement, thereby reducing the external traction force and preventing the plastic film from being pulled too tight and deformed;
[0015] 3. By providing a clamping sleeve, the two tensioning rollers can be clamped and fixed in the slideway to prevent the two ends of the tensioning roller from falling off the slideway. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 It is a schematic diagram of the mechanism of the tensioning device;
[0018] Figure 3 yes Figure 2 A magnified schematic diagram of center A.
[0019] In the figure, 1, bottom plate; 2, vertical plate; 3, unwinding roller; 4, auxiliary tension roller; 5, lead-out roller; 6, first motor; 7, second motor; 8, first tensioning roller; 9, second tensioning roller; 10, tensioning motor; 11, screw; 12, U-shaped tube; 13, connecting column; 14, vertical column; 15, slideway; 16, positioning sleeve; 17, plastic film; 18, connecting sleeve; 19, retaining ring. DETAILED DESCRIPTION
[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0021] Reference Figure 1-Figure 3 A plastic packaging bag placing device comprises a main mounting frame for mounting various components, the main mounting frame comprises a bottom plate 1 and a vertical plate 2, two vertical plates 2 are provided, the two vertical plates 2 are fixed on the bottom plate 1, and a reeling roller 3, an auxiliary pulling roller 4 and a lead-out roller 5 are sequentially arranged on the vertical plate 2 along the pulling direction of the plastic film 17, a tensioning device for adjusting the tension of the plastic film 17 when placing the bag is arranged between the auxiliary pulling roller 4 and the lead-out roller 5, the rolled plastic film 17 is fixed on the reeling roller 3, the lead-out end of the plastic film 17 passes through the auxiliary pulling roller 4 and the tensioning device in sequence, and is finally led out of the bag placing device by the lead-out roller 5, and the bag can be placed by pulling the bag by an external traction device.
[0022] The unwinding roller 3 and the auxiliary pulling roller 4 are both rotatably mounted on the vertical plate 2. A first motor 6 and a second motor 7 are fixedly arranged on the side of the vertical plate 2. The first motor 6 is used to drive the unwinding roller 3 to rotate, and the second motor 7 is used to drive the auxiliary pulling roller 4 to rotate. When placing the bag, the unwinding roller 3 and the driving roller can actively rotate with the bag placement, thereby reducing the external traction force and preventing the plastic film 17 from being pulled too tight and deformed.
[0023] The tensioning device includes a first tensioning roller 8, a second tensioning roller 9, a tensioning motor 10 and a screw 11. The two ends of the first tensioning roller 8 and the second tensioning roller 9 are connected as a whole through a U-shaped tube 12. The two ends of the first tensioning roller 8 and the second tensioning roller 9 are slidably installed on the vertical plates 2 on both sides. The U-shaped tube 12 is a hollow tubular structure. The outer ends of the first tensioning roller 8 and the second tensioning roller 9 are respectively inserted into the two straight sections of the U-shaped tube 12. The connection between the U-shaped tube 12 and the two guide rollers is fixed with bolts. The tensioning motor 10 is fixed to the base plate 1 through a motor bracket. A connecting column 13 is provided in the middle position of the outer side surface of the second tensioning roller 9. The connecting column 13 and the second tensioning roller 9 are integrally formed. The screw 11 is coaxially connected to the tensioning motor 10 and the screw 11 is screwed inside the connecting column 13. By screwing the screw rod 11 to the connecting column 13, and slidingly installing both ends of the first tensioning roller 8 and the second tensioning roller 9 on the vertical plate 2, when the tensioning motor 10 rotates to drive the screw rod 11 to rotate, the first tensioning roller 8 and the second tensioning roller 9 are pulled to move, and then the plastic film 17 between the first tensioning roller 8 and the second tensioning roller 9 is pulled, so as to adjust the tension of the plastic film 17.
[0024] A downwardly inclined slideway 15 is provided on the vertical plate 2. Both ends of the first tensioning roller 8 and the second tensioning roller 9 are installed in the slideways 15 on both sides. A positioning sleeve 16 is provided at the connection section between the first tensioning roller 8 and the slideway 15. The positioning sleeve 16 is flange-shaped as a whole, including a connecting sleeve 18 and a retaining ring 19 at the bottom of the mounting sleeve. The connecting sleeve 18 and the retaining ring 19 are integrally formed. Two positioning sleeves 16 are provided, which are respectively sleeved on the first guide roller on both sides of the vertical plate 2. The connecting sleeve 18 is fixed to the first tensioning roller 8 by bolts. The second tensioning roller 9 is also provided with a positioning sleeve 16, and its installation position and connection method are the same as those of the positioning sleeve 16 on the first tensioning roller 8. The positioning sleeve 16 can clamp and fix the two tensioning rollers in the slideway 15 to prevent the two ends of the tensioning rollers from falling off from the slideway 15.
[0025] Two columns 14 are symmetrically arranged on the outer sides of the two vertical plates 2, and two lead-out rollers 5 are installed side by side between the two columns 14, and the two lead-out rollers 5 are rotatably installed on the columns 14. When placing the bag, the plastic film 17 passes through between the two lead-out rollers 5, and the plastic film 17 is led out of the bag placing device by setting the lead-out rollers 5.
[0026] The implementation principle of this embodiment is: when placing the bag, the rolled plastic film 17 is set and fixed on the unwinding roller 3, and the lead-out end of the plastic film 17 first passes around the auxiliary tension roller 4, then passes through between the first tensioning roller 8 and the second tensioning roller 9, and then passes through between the two lead-out rollers 5, and finally is pulled by an external traction device to place the bag. During the bag placing process, as the plastic film 17 continues to become smaller and lighter, the plastic film 17 as a whole will become loose. At this time, the tensioning motor 10 is started to drive the first tensioning roller 8 and the second tensioning roller 9 to move in the slide 15, thereby pulling the plastic film 17, and gradually tightening the plastic film 17 to avoid wrinkles on the surface of the plastic film 17 during the bag placing process.
[0027] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A plastic packaging bag placing device, comprising a bottom plate (1) and a vertical plate (2), wherein the two vertical plates (2) are symmetrically fixed on the bottom plate (1), characterized in that: The vertical plate (2) is provided with an unwinding roller (3), an auxiliary pulling roller (4) and a lead-out roller (5) in sequence along the pulling direction of the plastic bag. The unwinding roller (3) and the auxiliary pulling roller (4) are both rotatably mounted on the vertical plate (2). A first motor (6) is fixed on the side of the vertical plate (2) for driving the unwinding roller (3) to rotate. A second motor (7) is fixed on the side of the vertical plate (2) for driving the auxiliary pulling roller (4) to rotate. A tensioning device for adjusting the tension of the plastic film (17) is provided between the auxiliary pulling roller (4) and the lead-out roller (5). The tensioning device comprises a first tensioning roller (8), a second tensioning roller (9), a tensioning motor (10) and a screw (11). The two ends of a tensioning roller (8) and a second tensioning roller (9) are connected and fixed as a whole through a U-shaped tube (12); the first tensioning roller (8) and the second tensioning roller (9) are synchronously slidably assembled on the vertical plate (2); a connecting column (13) is fixed on the middle outer surface of the second tensioning roller (9); a tensioning motor (10) is fixed on the bottom plate (1); a screw rod (11) is coaxially connected to the tensioning motor (10) and the screw rod (11) is screwed inside the connecting column (13); a column (14) is arranged on the outer side of the two vertical plates (2); the column (14) is fixed on the bottom plate (1); and the lead-out roller (5) is rotatably mounted on the top of the column (14).
2. A plastic packaging bag placing device according to claim 1, characterized in that: The U-shaped tube (12) is a hollow tube. The outer ends of the first tensioning roller (8) and the second tensioning roller (9) are respectively inserted into two straight sections of the U-shaped tube (12). The connection between the U-shaped tube (12) and the two guide rollers is fixed by bolts.
3. A plastic packaging bag placing device according to claim 1, characterized in that: The vertical plate (2) is provided with a downwardly inclined slideway (15), and both ends of the first tensioning roller (8) and the second tensioning roller (9) are installed in the slideways (15) on both sides. A retaining sleeve (16) is provided at the connection section between the first tensioning roller (8) and the slideway (15). The retaining sleeve (16) is flange-shaped as a whole, and includes a connecting sleeve (18) and a retaining ring (19) at the bottom of the mounting sleeve. The connecting sleeve (18) and the retaining ring (19) are integrally formed. Two retaining sleeves (16) are provided, which are respectively sleeved on the first guide roller on both sides of the vertical plate (2). The connecting sleeve (18) and the first tensioning roller (8) are fixed by bolts.
4. A plastic packaging bag placing device according to claim 3, characterized in that: The second tensioning roller (9) is also provided with a retaining sleeve (16), and its installation position and connection method are the same as those of the retaining sleeve (16) on the first tensioning roller (8).
5. The plastic packaging bag placing device according to claim 1, characterized in that: The two lead-out rollers (5) are provided, and the two lead-out rollers (5) are installed side by side between two upright posts (14), and the two lead-out rollers (5) are rotatably installed on the upright posts (14).