Express bag release film sticking mechanism

Abstract

The utility model discloses an express bag release film pasting mechanism relates to express bag processing technical field, including frame, and install release film conveying subassembly, tension adjusting unit, point gum subassembly, blow assembly, release film bonding subassembly and express bag conveying subassembly on the frame, release film conveying subassembly includes release film conveying roller and guide roller for conveying release film, tension adjusting unit sets up on release film conveying path for adjusting the tension of release film, point gum subassembly is located downstream tension adjusting unit for to release film point gum, blow assembly includes mounting bracket and install fan on mounting bracket, and the fan is used to blow after the release film of point gum to adjust the flatness of release film, express bag conveying subassembly includes express bag conveying roller for conveying express bag to conveying roller group place, has realized the automatic pasting of release film and express bag, and effectively promoted production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of express bag processing technology, specifically to an express bag release film pasting mechanism. Background Technology

[0002] In the production process of express delivery bags, in order to achieve convenient sealing of the bag opening, it is usually necessary to attach an adhesive structure to the bag opening. Release film is often used to protect this adhesive structure. When using the bag, the release film can be removed to seal the opening with adhesive.

[0003] In traditional production, the application of release film relies heavily on manual operation: operators need to manually align the release film with the adhesive position on the express bag and complete the bonding by using simple tools or manual pressing.

[0004] This manual pasting method has obvious limitations: on the one hand, the speed of manual operation is limited, making it difficult to match the continuous operation rhythm of automated production lines, resulting in low overall production efficiency and failing to meet the needs of large-scale production; on the other hand, during manual pasting, the positioning accuracy and flatness of the release film are easily affected by factors such as the operator's skill level and physical condition, often resulting in problems such as release film misalignment, wrinkles, or localized loose pasting, which directly affect the subsequent performance of the express bag and product consistency.

[0005] With the rapid development of the express delivery industry, the requirements for the production efficiency and quality of express bags are constantly increasing. The traditional method of manually pasting release film is no longer able to meet the needs of industrial production, and there is an urgent need for an automated mechanism to solve the above problems. Utility Model Content

[0006] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0007] A release film bonding mechanism for express delivery bags includes a frame, and a release film conveying assembly, a tension adjusting assembly, an adhesive dispensing assembly, a blowing assembly, a release film bonding assembly, and an express delivery bag conveying assembly mounted on the frame. The release film conveying assembly includes a release film conveying roller and a guide roller for conveying the release film; The tension adjustment component is installed on the release film conveying path and is used to adjust the tension of the release film. The dispensing assembly is located downstream of the tension adjustment assembly and is used to dispense adhesive onto the release film. The blowing assembly includes a mounting bracket and a fan mounted on the mounting bracket. The fan is used to blow air onto the release film after it has been glued to adjust the flatness of the release film. The express bag conveying assembly includes an express bag conveying roller for conveying express bags to the conveying roller group; The release film bonding assembly includes a conveyor roller assembly, which is used to bond the release film, after being processed by the air blowing assembly, to the express bag.

[0008] As a further embodiment of this utility model: the release film adhesive assembly also includes a fixing seat fixedly connected to both sides of the frame; The conveying roller assembly includes a pressing roller and a support roller arranged opposite to each other. The two ends of the pressing roller and the support roller are respectively rotatably connected between two fixed seats. The pressing roller and the dispensing assembly are arranged sequentially along the conveying direction of the release film.

[0009] As a further embodiment of this utility model: the blowing assembly further includes a connecting rod, the two ends of which are respectively fixedly connected to two fixed seats and located upstream of the pressing roller; One end of the mounting bracket is sleeved on the connecting rod and slides in cooperation with the connecting rod, and the mounting bracket is provided with a locking bolt for locking its position.

[0010] As a further embodiment of this utility model: at least two fans are provided, and at least two fans are arranged vertically on the mounting bracket.

[0011] As a further embodiment of this utility model: the mounting frame is in an inclined state, and the inclination direction is adapted to the path of the release film entering the conveying roller group, so that the air outlet direction of the fan forms an angle with the surface of the release film.

[0012] As a further embodiment of this utility model: the mounting bracket is provided with a mounting groove adapted to the fan, and the fan is snapped into the mounting groove and can slide vertically along the mounting groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention achieves automated bonding of release film to express bags by coordinating a release film conveying assembly, a tension adjusting assembly, an adhesive dispensing assembly, a blowing assembly, a release film bonding assembly, and an express bag conveying assembly, effectively improving production efficiency. The tension adjusting assembly stabilizes the release film tension, while the blowing assembly uses an inclined fan to flatten the release film. Combined with the pressing action of the conveying rollers, this significantly improves the flatness and consistency of the release film bonding, ensuring product quality.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the blower assembly and the release film adhesive assembly in this utility model.

[0017] The reference numerals and names in the figure are as follows: 1. Frame; 2. Release film conveying roller; 3. Guide roller; 4. Tension adjustment assembly; 5. Dispensing assembly; 6. Blowing assembly; 7. Mounting bracket; 8. Fan; 9. Express bag conveying roller; 10. Fixing base; 11. Pressing roller; 12. Support roller; 13. Connecting rod; 14. Locking bolt; 15. Release film bonding assembly. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-2 In this embodiment of the utility model, a release film pasting mechanism for express delivery bags is installed on the frame 1 as a whole, and the release film is automatically pasted to the express delivery bag through the coordinated cooperation of various components.

[0020] A release film conveying assembly is installed on the frame 1. The release film conveying assembly includes a release film conveying roller 2 and a guide roller 3. The release film roll is fitted onto the release film conveying roller 2. The release film conveying roller 2 is connected to a drive motor and releases the release film under the driving force of the motor. The guide roller 3 is spaced along the conveying path of the release film. The release film wraps around the surface of the guide roller 3. The guide roller 3 guides the conveying direction of the release film to ensure that the release film moves stably along the preset path.

[0021] Along the conveying direction of the release film, a tension adjustment component 4 is provided downstream of the release film conveying assembly. This component can adopt a swing arm type tension adjustment structure, including a rotatable swing arm and a tension roller installed at the end of the swing arm. The tension roller presses against the surface of the release film. The pressure of the tension roller on the release film is adjusted by swinging the swing arm, thereby adjusting the tension of the release film during the conveying process, avoiding wrinkles due to excessive looseness or breakage due to excessive tightness of the release film, and ensuring the stability of the release film conveying.

[0022] Downstream of the tension adjustment component 4 is a dispensing component 5, which can adopt a pneumatic dispensing valve structure. After the release film is adjusted to a suitable tension by the tension adjustment component 4, the dispensing component 5, under the action of the control system, performs dispensing operations at preset positions on the release film at preset intervals, so that a required adhesive layer is formed on the surface of the release film, providing conditions for subsequent bonding with the express bag.

[0023] The frame 1 is also provided with a release film bonding assembly 15, which includes a fixed base 10 and a conveying roller assembly. The fixed base 10 is fixedly connected to both sides of the frame 1 by bolts. The conveying roller assembly consists of a pressing roller 11 and a support roller 12 arranged opposite to each other. The two ends of the pressing roller 11 and the support roller 12 are rotatably connected between the two fixed bases 10 by bearings. The pressing roller 11 is connected to the drive motor by a chain or other means. The pressing roller 11 and the dispensing assembly 5 are arranged sequentially along the conveying direction of the release film.

[0024] After the adhesive is applied, the release film continues to be conveyed and enters the working range of the blowing assembly 6. The blowing assembly 6 includes a mounting frame 7, a fan 8, and a connecting rod 13. The two ends of the connecting rod 13 are fixedly connected to the two fixed seats 10 of the release film bonding assembly 15, and are located upstream of the pressing roller 11. One end of the mounting frame 7 has a through hole adapted to the connecting rod 13, and is fitted onto the connecting rod 13 to form a sliding fit. The position of the mounting frame 7 on the connecting rod 13 can be adjusted by sliding the mounting frame 7. After the position is determined, the connecting rod 13 is locked by the locking bolt 14 provided on the mounting frame 7. The mounting frame 7 is in an inclined state, and its inclination direction is adapted to the path of the release film entering the conveying roller group.

[0025] Fan 8 is mounted on mounting bracket 7, which has a mounting groove adapted to fan 8. Fan 8 is snapped into the mounting groove and can slide vertically along the groove. The height of fan 8 can be changed by adjusting its position in the mounting groove. At least two fans 8 are provided, and at least two fans 8 are arranged vertically. Due to the inclined setting of mounting bracket 7, the air outlet direction of fan 8 forms an angle of 30°-60° with the release film surface, which can blow air onto the release film after adhesive application. The airflow adjusts the flatness of the release film and eliminates wrinkles that may exist on the release film surface to a certain extent.

[0026] The frame 1 is also equipped with a courier bag conveying assembly, which includes a courier bag conveying roller 9 and a drive motor. The courier bag conveying roller 9 and the drive motor are connected by means of belt drive or other methods, and are used to convey the courier bags to the conveying roller group, that is, between the pressing roller 11 and the support roller 12. The release film, after being flattened by the blowing assembly 6, is conveyed to the pressing roller 11 and the support roller 12, and is bonded to the courier bag conveyed by the courier bag conveying assembly under the squeezing action of the pressing roller 11 and the support roller 12.

[0027] The dispensing component 5 dispenses adhesive onto the upper surface of the release film, forming an adhesive layer on the surface of the release film and the express bag to be bonded, ensuring effective bonding directly through the adhesive layer when the release film is bonded to the express bag later; at the same time, the fan 8 of the blowing component 6 blows air onto the surface, and the airflow acts on the upper surface of the release film with the adhesive layer.

[0028] Its advantages are twofold. First, by controlling the tilt angle and wind speed of fan 8, the airflow can moderately accelerate the air circulation around the adhesive layer while mainly acting on the release film substrate, helping the volatile components in the adhesive layer to evaporate slightly to reduce the risk of subsequent adhesion, and avoiding direct impact on the adhesive layer to cause physical damage or contamination. Second, when the airflow acts on the surface of the release film, it will form a pressure difference along the film surface. When there are wrinkles in the release film, the airflow speed at the wrinkles is different from that at the flat areas. According to the principle of fluid mechanics, the pressure is lower where the flow velocity is higher. The pressure difference will generate outward tension on the wrinkled parts, causing the wrinkles to unfold. At the same time, the thrust generated by the airflow on the release film as a whole can be combined with the tension of the release film during delivery to further eliminate unevenness caused by local slack, so that the release film maintains a good flat state before entering the bonding assembly, ensuring the bonding accuracy when bonding with the express bag.

[0029] In summary, this utility model, through the coordinated operation of the release film conveying assembly, tension adjustment assembly 4, dispensing assembly 5, blowing assembly 6, release film bonding assembly 15, and express bag conveying assembly, achieves automated bonding of release film and express bag, effectively improving production efficiency. Among them, the tension adjustment assembly 4 can stabilize the tension of the release film, and the blowing assembly 6 can flatten the release film through the inclined fan 8. Combined with the pressing effect of the conveying roller group, it significantly improves the flatness and consistency of the release film bonding, ensuring product quality.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A release film pasting mechanism for express delivery bags, characterized in that, It includes a frame, and a release film conveying assembly, a tension adjusting assembly, a dispensing assembly, a blowing assembly, a release film bonding assembly, and a courier bag conveying assembly mounted on the frame; The release film conveying assembly includes a release film conveying roller and a guide roller for conveying the release film; The tension adjustment component is installed on the release film conveying path and is used to adjust the tension of the release film. The dispensing assembly is located downstream of the tension adjustment assembly and is used to dispense adhesive onto the release film. The blowing assembly includes a mounting bracket and a fan mounted on the mounting bracket. The fan is used to blow air onto the release film after it has been glued to adjust the flatness of the release film. The express bag conveying assembly includes an express bag conveying roller for conveying express bags to the conveying roller group; The release film bonding assembly includes a conveyor roller assembly, which is used to bond the release film, after being processed by the air blowing assembly, to the express bag.

2. The release film pasting mechanism for express delivery bags according to claim 1, characterized in that, The release film adhesive assembly also includes a fixing seat fixedly connected to both sides of the frame; The conveying roller assembly includes a pressing roller and a support roller arranged opposite to each other. The two ends of the pressing roller and the support roller are respectively rotatably connected between two fixed seats. The pressing roller and the dispensing assembly are arranged sequentially along the conveying direction of the release film.

3. The release film pasting mechanism for express delivery bags according to claim 2, characterized in that, The blowing assembly also includes a connecting rod, the two ends of which are fixedly connected to two fixed seats and located upstream of the pressing roller; One end of the mounting bracket is sleeved on the connecting rod and slides in cooperation with the connecting rod, and the mounting bracket is provided with a locking bolt for locking its position.

4. A release film pasting mechanism for express delivery bags according to any one of claims 1-3, characterized in that, At least two fans are provided, and the at least two fans are arranged vertically on the mounting bracket.

5. The release film pasting mechanism for express delivery bags according to claim 3, characterized in that, The mounting frame is tilted, and the tilt direction is adapted to the path of the release film entering the conveyor roller group, so that the air outlet direction of the fan forms an angle with the surface of the release film.

6. The release film pasting mechanism for express delivery bags according to claim 1, characterized in that, The mounting bracket is provided with a mounting slot adapted to the fan, and the fan is snapped into the mounting slot and can slide vertically along the mounting slot.

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