Packaging bag preparation device

Abstract

The utility model discloses a packaging bag preparation device which comprises a first tensioning assembly, a hot pressing mechanism, a second tensioning assembly, a cutting mechanism, a first driving mechanism and a product conveying mechanism, the hot pressing mechanism is located on the downstream of the first tensioning assembly, the second tensioning assembly is located on the downstream of the hot pressing mechanism, and the cutting mechanism is located on the downstream of the second tensioning assembly. The first driving mechanism is connected with the hot-pressing mechanism and the cutting mechanism, the product conveying mechanism is located on the downstream portion of the cutting mechanism, the flattening assembly is located on the downstream portion of the first tensioning assembly, and the third tensioning assembly is located between the flattening assembly and the hot-pressing mechanism. The height of the leveling assembly is lower than the height of the first tensioning assembly and the height of the third tensioning assembly. According to the utility model, wrinkles of raw materials before sewing can be eliminated.

Description

Technical Field

[0001] This utility model relates to the field of packaging bag preparation, specifically to a packaging bag preparation device. Background Technology

[0002] Packaging bags are widely used in our daily lives and work because of their convenience in use and carrying. Among various packaging bags, plastic bags are particularly widely used due to their unique sealing and lightweight properties. Plastic packaging bags include polyethylene plastic bags, polypropylene plastic bags, and polyvinyl chloride plastic bags. They can not only protect products and facilitate storage and transportation, but also promote sales and beautify products.

[0003] The existing packaging bag production process includes two stations: hot pressing and cutting. The folded raw material first enters the hot pressing station, where it is hot-pressed and sewn together. Since the raw material is continuously fed, the sewing process is also continuous, resulting in a packaging bag with an opening on one side and closed on the other three sides. After sewing, the bag is cut into individual packaging bags at the cutting station, and finally, the packaging bags are output to the designated location via a feeding conveyor.

[0004] For the aforementioned equipment, since the raw materials have some wrinkles after folding, the raw materials are directly fed into the hot pressing station for sewing. After sewing, the wrinkles still remain, ultimately resulting in wrinkled product surfaces and affecting product quality. Utility Model Content

[0005] This invention provides a packaging bag preparation device that can eliminate wrinkles in the raw materials before sewing.

[0006] The technical solution to the above problem is as follows:

[0007] A packaging bag manufacturing apparatus includes a first tensioning component, a hot pressing mechanism, a second tensioning component, a cutting mechanism, a first driving mechanism, and a product conveying mechanism. The hot pressing mechanism is located downstream of the first tensioning component, the second tensioning component is located downstream of the hot pressing mechanism, and the cutting mechanism is located downstream of the second tensioning component. The first driving mechanism is connected to both the hot pressing mechanism and the cutting mechanism. The product conveying mechanism is located downstream of the cutting mechanism. The apparatus also includes a flattening component and a third tensioning component for flattening the fabric. The flattening component is located downstream of the first tensioning component, and the third tensioning component is located between the flattening component and the hot pressing mechanism. The height of the flattening component is lower than the height of the first tensioning component and the third tensioning component.

[0008] In this invention, after the folded material passes through the first tensioning assembly, the folded material passes through the flattening assembly. A paddle in the flattening assembly inserts into the folded material, exerting a flattening force on the upper and lower layers. The material then passes through the third tensioning assembly and enters the hot-pressing mechanism. Under the action of the pressure roller and ultrasonic welding components, the upper and lower layers of the material are sewn together. Since the pressure roller only has pressing parts protruding from its surface, each rotation of the pressure roller and the ultrasonic welding components only creates one sewing action on the material. As the material continues to be input, the hot-pressing mechanism continues to sew the material, thus forming sewn sections at intervals on the material. After sewing, the material passes through the second tensioning assembly and enters the cutting mechanism. The cutting mechanism applies a cutting force from the middle of the sewn section, cutting it off. Two adjacent sewn sections and the portion between them form a single packaging bag. Attached Figure Description

[0009] Figure 1 This is a structural diagram of a packaging bag preparation device.

[0010] Figure 2 This is a structural diagram of the first tensioning assembly, the hot pressing mechanism, the leveling assembly, and the third tensioning assembly.

[0011] Figure 3 This is a 3D view of the support arm.

[0012] Figure 4 A 3D view of the product conveying mechanism.

[0013] Figure 5 This is a 3D view of the material receiving mechanism.

[0014] Figure 6 This is a schematic diagram of the raw material sewing and cutting process.

[0015] Labels in the attached diagram:

[0016] First tensioning assembly 1, first support component 1a, first tensioning roller 1b, hot pressing mechanism 2, first support frame 2a, pressure roller 2b, ultrasonic welding component 2c, second tensioning assembly 3, spindle 3a, support arm 3b, second tensioning roller 3c, first mounting hole 3d, opening 3e, threaded hole 3f, cutting mechanism 4, first drive mechanism 5, product conveying mechanism 6, first bracket 6a, first short shaft 6a1, second short shaft 6a2, transfer guide plate 6b, first driver 6c, electric motor 6c1, first transmission shaft 6c2, second transmission shaft 6c3, first gear 6c4, second gear 6c5, first flexible transmission mechanism 6d, second flexible transmission mechanism 6e, unloading cover 6f, leveling assembly 7, support 7a, paddle 7b, third tensioning assembly 8, third support component 8a, third tensioning roller 8b, second bracket 9, third flexible transmission mechanism 10, receiving hopper 11, second driver 12. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing" and other such terms should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components, unless otherwise explicitly limited.

[0021] like Figures 1 to 6 The packaging bag preparation device of this utility model includes a first tensioning component 1, a hot pressing mechanism 2, a second tensioning component 3, a cutting mechanism 4, a first driving mechanism 5, a product conveying mechanism 6, a flattening component 7 for flattening the fabric, and a third tensioning component 8. The following is a detailed description of each part and the relationship between them.

[0022] The first tensioning assembly 1 is installed on the workbench A. The first tensioning assembly 1 consists of a first support component 1a and a first tensioning roller 1b. One end of the first support component 1a is fixed to the workbench A, and the other end of the first support component 1a is connected to the first tensioning roller 1b.

[0023] The hot pressing mechanism 2 is located downstream of the first tensioning assembly 1. The hot pressing mechanism 2 consists of a first support frame 2a, a pressure roller 2b, and an ultrasonic welding component 2c. The first support frame 2a is fixed to the worktable A. The pressure roller 2b is pivotally connected to the first support frame 2a. The ultrasonic welding component 2c is mounted on the first support frame 2a and has a clearance fit with the pressure roller 2b. The pressure roller 2b is connected to the first driving mechanism 5. The first driving mechanism 5 is connected to both the hot pressing mechanism 2 and the cutting mechanism 4. The first driving mechanism 5 consists of a motor, a sprocket and chain mechanism, and a gear transmission mechanism. The output end of the motor is connected to the sprocket and chain mechanism, the gear transmission mechanism is connected to the sprocket and chain mechanism, and the gear transmission mechanism is connected to the pressure roller 2b.

[0024] The second tensioning assembly 3 is located downstream of the hot pressing mechanism 2. The second tensioning assembly 3 includes a spindle 3a, a support arm 3b, a second tensioning roller 3c, and screws. The spindle 3a is fixed to the hot pressing mechanism 2. One end of the support arm 3b is provided with a first mounting hole 3d and an opening 3e that communicates with the first mounting hole 3d. The support arm 3b is also provided with threaded holes 3f located on both sides of the opening. After the spindle 3a is engaged with the first mounting hole 3d on the support arm 3b, the support arm 3b clamps the spindle 3a by connecting the screw to the threaded hole 3f. The other end of the support arm 3b is located outside the hot pressing mechanism 2 and is connected to the second tensioning roller 3c.

[0025] After the screw is loosened, the clamping force of the support arm 3b on the spindle 3a is released, and a torque is applied to the support arm 3b, causing the support arm 3b to rotate around the spindle 3a as the center, thereby adjusting the angle between the support arm 3b and the first support frame 2a. This allows for adjustment of the tension on the second tension roller 3c.

[0026] The cutting mechanism 4 is located downstream of the second tensioning assembly 3. The cutting mechanism 4 includes a second support frame, a support roller, and a cutter roller equipped with a cutter. The support roller and the cutter roller are pivotally connected to the second support frame, and the cutter roller is located above the support roller and is in clearance fit with the support roller. The support roller and the cutter roller are connected to the first drive mechanism 5.

[0027] The product conveying mechanism 6 is located downstream of the cutting mechanism 4. The product conveying mechanism 6 includes a first support 6a, a transfer guide plate 6b, a first driver 6c, a first flexible transmission mechanism 6d, a second flexible transmission mechanism 6e, and a discharge cover 6f. The transfer guide plate 6b is engaged with the output end of the cutting mechanism 4 and fixed to the first support 6a. The transfer guide plate 6b is also located between the first flexible transmission mechanism 6d and the second flexible transmission mechanism 6e. The first driver 6c is fixed to the first support 6a and is connected to the first flexible transmission mechanism 6d. The second flexible transmission mechanism 6e is located below the first flexible transmission mechanism 6d and is connected to the first support 6a.

[0028] The first driver 6c includes an electric motor 6c1, a first drive shaft 6c2, a second drive shaft 6c3, a first gear 6c4, and a second gear 6c5. The output end of the electric motor 6c1 is fixed to the first drive shaft 6c2. The first drive shaft 6c2 and the second drive shaft 6c3 are pivotally connected to the first bracket 6a. The first gear 6c4 is fixed to the first drive shaft 6c2, and the second gear 6c5 is fixed to the second drive shaft 6c3. The first gear 6c4 and the second gear 6c5 mesh. One end of the first flexible transmission mechanism 6d is connected to the first drive shaft 6c2, and the other end of the first flexible transmission mechanism 6d is connected to the first short shaft 6a1 on the first bracket 6a. One end of the second flexible transmission mechanism 6e is connected to the second drive shaft 6c3, and the other end of the second flexible transmission mechanism 6e is connected to the second short shaft 6a2 on the first bracket 6a. Both the first flexible transmission mechanism 6d and the second flexible transmission mechanism 6e are belt drive mechanisms.

[0029] The leveling component 7 is located downstream of the first tensioning component 1, and the third tensioning component 8 is located between the leveling component 7 and the hot pressing mechanism 2. The height of the leveling component 7 is lower than the height of the first tensioning component 1 and the third tensioning component 8.

[0030] The leveling assembly 7 includes a support 7a and a paddle 7b for inserting into the folded material, the paddle 7b being fixed to the support 7a. The third tensioning assembly 8 includes a third support component 8a and a third tensioning roller 8b, the third tensioning roller 8b being connected to the third support component 8a.

[0031] This utility model also includes a receiving mechanism located downstream of the product conveying mechanism 6. The receiving mechanism includes a second support 9, a third flexible transmission mechanism 10, a receiving hopper 11, and a second driver 12. The third flexible transmission mechanism 10 is connected to the second support 9. There are multiple receiving hoppers 11, each connected to the third flexible transmission mechanism 10. The second driver 12 is connected to the third flexible transmission mechanism 10. The third flexible transmission mechanism 10 preferably adopts a sprocket and chain mechanism. The receiving hopper 11 is U-shaped. The second driver 12 preferably adopts a geared motor.

[0032] The working process of this utility model is as follows:

[0033] After the folded material Y passes through the first tensioning assembly 1, it passes through the flattening assembly 7. The flattening assembly 7 inserts a paddle 7b into the folded material Y, which exerts a flattening force on the upper and lower layers of the material Y. Then, after passing through the third tensioning assembly 8, the material Y enters the hot pressing mechanism 2. Under the action of the pressure roller 2b and the ultrasonic welding component 2c, the upper and lower layers of the material Y are sewn together. Since the pressure roller 2b only has pressing parts protruding from its surface in certain areas, each rotation of the pressure roller 2b and the ultrasonic welding component 2c only creates one sewing action on the material. As the material continues to be input, the hot pressing mechanism 2 continues to sew the material, thus forming sewn sections F intermittently on the material Y. After sewing, the material Y passes through the second tensioning assembly 3 and enters the cutting mechanism 4. The cutting mechanism 4 applies a cutting action from the middle position of the sewn sections F. The cutting mechanism 4 cuts the bag into individual packaging bags B, with two adjacent seams F and the portion between them forming a single bag. The bag B output from the cutting mechanism 4 first reaches the transfer guide plate 6b. Under the clamping action of the first flexible transmission mechanism 6d and the second flexible transmission mechanism 6e, the bag B moves to the output end of the product conveying mechanism 6. When the bag B reaches the output end of the product conveying mechanism 6, it is forced downwards by the obstruction of the unloading cover 6f and falls into the receiving hopper 11 currently aligned with the output port of the product conveying mechanism 6. Multiple bags B accumulate in the current receiving hopper 11. When a set accumulation number is reached (e.g., 20 bags), the second driver 12 drives the third flexible transmission mechanism 10 to move. The third flexible transmission mechanism 10 moves the receiving hopper 11, aligning the next empty receiving hopper 11 with the output port of the product conveying mechanism 6, allowing the empty receiving hopper 11 to continue receiving bags B. Workers can directly remove the bags B from the receiving hopper 11, facilitating the stacking of the bags B.

Claims

1. A packaging bag preparation apparatus, comprising a first tensioning component (1), a hot pressing mechanism (2), a second tensioning component (3), a cutting mechanism (4), a first driving mechanism (5), and a product conveying mechanism (6), wherein the hot pressing mechanism (2) is located downstream of the first tensioning component (1), the second tensioning component (3) is located downstream of the hot pressing mechanism (2), the cutting mechanism (4) is located downstream of the second tensioning component (3), the first driving mechanism (5) is connected to the hot pressing mechanism (2) and the cutting mechanism (4) respectively, and the product conveying mechanism (6) is located downstream of the cutting mechanism (4), characterized in that, It also includes a flattening assembly (7) for flattening the fabric and a third tensioning assembly (8). The flattening assembly (7) is located downstream of the first tensioning assembly (1), and the third tensioning assembly (8) is located between the flattening assembly (7) and the hot pressing mechanism (2). The height of the flattening assembly (7) is lower than the height of the first tensioning assembly (1) and the third tensioning assembly (8).

2. The packaging bag preparation apparatus according to claim 1, wherein The second tensioning assembly (3) includes a spindle (3a), a support arm (3b), a second tensioning roller (3c), and screws. The spindle (3a) is fixed to the hot pressing mechanism (2). One end of the support arm (3b) is provided with a first mounting hole (3d) and an opening (3e) that communicates with the first mounting hole (3d). The support arm (3b) is also provided with threaded holes (3f) located on both sides of the opening. After the spindle (3a) is engaged with the first mounting hole (3d) on the support arm (3b), the support arm (3b) clamps the spindle (3a) by connecting the screws to the threaded holes (3f). The other end of the support arm (3b) is located outside the hot pressing mechanism (2) and is connected to the second tensioning roller (3c).

3. The packaging bag production apparatus according to claim 1, wherein The leveling assembly (7) includes a support (7a) and a paddle (7b) for inserting into the folded material, the paddle (7b) being fixed to the support (7a).

4. The packaging bag production apparatus according to claim 1, wherein The third tensioning assembly (8) includes a third support component (8a) and a third tensioning roller (8b), with the third tensioning roller (8b) connected to the third support component (8a).

5. The packaging bag production apparatus according to claim 1, wherein The product conveying mechanism (6) includes a first bracket (6a), a transfer guide plate (6b), a first driver (6c), a first flexible transmission mechanism (6d), a second flexible transmission mechanism (6e), and a discharge cover (6f). The transfer guide plate (6b) is engaged with the output end of the cutting mechanism (4) and fixed to the first bracket (6a). The transfer guide plate (6b) is also located between the first flexible transmission mechanism (6d) and the second flexible transmission mechanism (6e). The first driver (6c) is fixed to the first bracket (6a) and is connected to the first flexible transmission mechanism (6d). The second flexible transmission mechanism (6e) is located below the first flexible transmission mechanism (6d) and connected to the first bracket (6a).

6. The packaging bag production apparatus according to any one of claims 1 to 5, characterized by It also includes a receiving mechanism located downstream of the product conveying mechanism (6). The receiving mechanism includes a second support (9), a third flexible transmission mechanism (10), a receiving hopper (11), and a second driver (12). The third flexible transmission mechanism (10) is connected to the second support (9). There are multiple receiving hoppers (11) and they are respectively connected to the third flexible transmission mechanism (10). The second driver (12) is connected to the third flexible transmission mechanism (10).

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