A gluing and film laminating device for express file bags

Abstract

The utility model discloses a kind of for express file bag's gluing laminating device, including rack main body, and directional conveying component, mounting bracket, glue spraying component and paper film loading cutting mechanism installed on rack main body.Glue spraying component is installed on the input end of processing conveying component, for the edge of the input processed file bag is injected glue.Paper film loading cutting mechanism includes paper film loading component and paper film cutting component.Paper film loading component includes guiding conveying support, storage roller, loading motor, tensioning component and multiple guide rollers.The utility model is formed by setting storage roller and multiple guide rollers, the guidance output to paper film is formed, simultaneously, on the output end of paper film, set blowing component, paper film is blown from above and hangs down to processing conveying component output direction, ensure that paper film when being bonded to the processed file bag, its bonding surface is the side surface of processing conveying component, effectively avoid the back of paper film and the processed file bag bonding.

Description

Technical Field

[0001] This utility model belongs to the technical field of express document bag processing equipment, specifically relating to an adhesive coating device for express document bags. Background Technology

[0002] like Figure 6 As shown, the courier document bag unfolds after cutting, consisting of a main body and a sealing edge along its edge. During processing, the sealing edge is coated with adhesive, and a paper film is attached over the adhesive. When the courier receives the package and places it in the document bag, they can tear open the paper film to expose the adhesive side. The courier then folds the sealing edge. The adhesive is used to bond the sealing edge to the main body of the document bag, thus sealing it.

[0003] In existing technologies, the application of adhesive to the sealing edges is typically done manually or using laminating equipment. Manual application requires repeated steps of pasting, laminating, and cutting. During the lamination process, misalignment of the lamination position can easily occur, resulting in some adhesive being exposed, which negatively impacts subsequent storage.

[0004] When using laminating equipment, a storage roller typically stores the wound paper film. During release, multiple guide rollers propel the paper film towards the conveyor belt used to transport document bags. Because the paper film needs to be cut after lamination to a specified length, the bonding surface between the subsequent ends and the adhesive is difficult to control. If the back of the paper film is bonded to the document bag, it can cause adhesion deviations, affecting the final bonding effect; or it can pull on the document bag, causing it to stall during transport. Utility Model Content

[0005] To overcome the shortcomings of the existing technology, this utility model provides an adhesive coating device for express delivery document bags, so as to solve the technical problem that the back of the paper film is bonded to the adhesive during the coating process of existing coating equipment.

[0006] To achieve the above objectives, the specific technical solution of this utility model is as follows: A gluing and laminating device for express delivery document bags includes a frame body, and a directional conveying assembly, a mounting bracket, a glue spraying assembly, and a paper film feeding and cutting mechanism mounted on the frame body. The directional conveying assembly includes a bag feeding assembly and a processing conveying assembly arranged in sequence for directional conveying of the document bags to be processed.

[0007] The glue spraying assembly and the paper film feeding and cutting mechanism are mounted on the mounting bracket. The glue spraying assembly is installed on the input end of the processing conveyor assembly and is used to spray glue onto the edge of the input document bag being processed.

[0008] The paper film feeding and cutting mechanism includes a paper film feeding assembly and a paper film cutting assembly. The paper film feeding assembly includes a guide conveyor bracket, storage rollers, a feeding motor, a tensioning assembly, and multiple guide rollers. The guide conveyor bracket and the glue spraying bracket are spaced apart, forming a conveying channel for the released paper film. The storage rollers are rotatably connected to the mounting bracket and can rotate under the drive of the feeding motor, releasing the paper film wound on the storage rollers. The released paper film, guided by the guide rollers, passes through the conveying channel and is output from the output port at the bottom of the conveying channel to the processed document bag. The tensioning assembly is located on the side of the conveying channel and can clamp the paper film output from the conveying channel.

[0009] The paper film cutting component is used to cut the paper film output when the storage roller outputs paper film of the corresponding length.

[0010] Furthermore, there are two guide rollers: a transition guide roller and an end guide roller. The transition guide roller guides the paper film released from the storage roller towards the end guide roller for output. The end guide roller is positioned directly above the conveying channel and guides the released paper film towards one side of the conveying channel.

[0011] Furthermore, an assist assembly is provided between the transition guide wheel and the end guide wheel. The assist assembly includes an assist motor, a first assist roller, a second assist roller, and a slide assembly. The first and second assist rollers are arranged horizontally. The output shaft of the assist motor is connected to the first assist roller; the second assist roller is slidably connected to the mounting bracket via the slide assembly.

[0012] Furthermore, a pressure plate is provided at the bottom of the guide conveyor bracket. The bottom surface of the pressure plate gradually moves closer to the conveying surface of the processing conveyor assembly in the conveying direction of the processing conveyor assembly.

[0013] Furthermore, the tensioning assembly includes a tensioning roller, a sliding bracket, and a drive cylinder; the sliding bracket is slidably connected to the glue spraying bracket and connected to the power output end of the drive cylinder, enabling it to reciprocate under the drive of the drive cylinder. The tensioning roller is rotatably connected to the end of the sliding bracket, enabling it to clamp the paper film in the conveying channel in conjunction with the guide conveying bracket when the sliding bracket extends outward.

[0014] Furthermore, the glue spraying assembly includes a glue spraying bracket, a glue delivery pump, a glue nozzle, and two delivery conduits. The glue spraying bracket is fixed on the mounting bracket, and its bottom is spaced apart from the delivery surface of the processing and conveying assembly. The glue nozzle is mounted on the bottom surface of the glue spraying bracket, and the spray nozzle is directly facing the delivery surface of the processing and conveying assembly.

[0015] Furthermore, a blowing assembly is provided below the tensioning assembly; the blowing assembly includes a blowing pipe. One end of the blowing pipe is connected to an external air source, and the other end is installed on the side of the glue spraying bracket, enabling it to blow air towards the processing and conveying assembly.

[0016] Furthermore, the paper film cutting assembly includes a pneumatic cutter and an air pump. The pneumatic cutter is positioned directly below the tension roller. Initially, the cutting section of the pneumatic cutter is retracted into the pneumatic cutter housing.

[0017] Furthermore, the bag feeding assembly includes a lower feeding conveyor assembly and an upper limiting conveyor assembly. The conveying surfaces of the feeding conveyor assembly and the limiting conveyor assembly are in contact with each other, which can form a limiting conveying of the document bag being processed towards the processing conveyor assembly while it is clamped.

[0018] Furthermore, the feeding conveyor assembly, the limiting conveyor assembly, and the processing conveyor assembly have the same structure, each including a synchronous conveyor belt, a drive motor, and multiple synchronous conveyor rollers. Each of the synchronous conveyor rollers is arranged sequentially on the main frame and is rotatably connected to the main frame. The synchronous conveyor rollers are connected to each other via the synchronous conveyor belt. One of the synchronous conveyor rollers is connected to the power output shaft of the drive motor.

[0019] Compared with the prior art, the present invention has the following advantages: This invention uses a storage roller and multiple guide rollers to guide the paper film output. Simultaneously, a blowing assembly is installed at the output end of the paper film to sequentially blow the paper film falling from above towards the processing conveyor assembly. This ensures that when the paper film is adhered to the document bag being processed, its adhesive surface faces the processing conveyor assembly, effectively preventing the back of the paper film from adhering to the document bag and preventing glue exposure in the final product. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram showing the relative positions of the tensioning component and the assisting component in this utility model; Figure 3 This is a schematic diagram of the structure of the glue spraying assembly and the paper film feeding assembly in this utility model. Figure 2 (Enlarged view of part A in the middle) Figure 4 This is a schematic diagram showing the relative positions of the processing and conveying components and the paper film feeding and cutting mechanism in this utility model; Figure 5 This is a schematic diagram of the tensioning component in this utility model. Figure 4 (Enlarged view of part B in the middle section) Figure 6 This is a schematic diagram of the structure of a processed document bag in the prior art.

[0021] Reference numerals: 100, document bag body; 101, sealing edge; 1, frame body; 2, mounting bracket; 3, glue spraying assembly; 3-1, glue spraying bracket; 3-2, glue nozzle; 4, paper film feeding and cutting mechanism; 5, bag body feeding assembly; 6, processing and conveying assembly; 7, paper film feeding assembly; 7-1, guide conveying bracket; 7-2, storage roller; 7-4, transition guide wheel; 7-5, end guide wheel; 8, paper film cutting assembly; 9, tensioning assembly; 9-1, tensioning roller; 9-2, sliding bracket; 9-3, drive cylinder; 10, assist assembly; 10-1, first assist roller; 10-2, second assist roller; 11, pressure plate; 12, blowing assembly. Detailed Implementation

[0022] In the description of this utility model, it should be understood that the terms "one end", "the other end", "outer side", "upper side", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They 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, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] like Figure 1 and 2 As shown, a gluing and laminating device for express document bags includes a frame body 1, and a directional conveying assembly, a mounting bracket 2, a glue spraying assembly 3, and a paper film feeding and cutting mechanism 4 mounted on the frame body 1. The directional conveying assembly includes a bag feeding assembly 5 and a processing conveying assembly 6 arranged in sequence. The bag feeding assembly 5 includes a lower feeding conveying assembly and an upper limiting conveying assembly. The conveying surfaces of the feeding conveying assembly and the limiting conveying assembly are in contact, forming a limiting conveying of the document bag in a clamped state, and outputting it towards the processing conveying assembly 6.

[0025] The glue spraying assembly 3 and the paper film feeding and cutting mechanism 4 are fixed to the main frame 1 via the mounting bracket 2. The glue spraying assembly 3 is installed at the input end of the processing conveying assembly 6 and is used to spray glue onto the edges of the input document bag being processed.

[0026] The paper film feeding and cutting mechanism 4 includes a paper film feeding component 7 and a paper film cutting component 8. The paper film feeding component 7 releases the wound paper film, and the bottom end of the paper film is adhered to the document bag being processed using adhesive sprayed onto the bag, facilitating subsequent stacking and storage of the document bags. The paper film cutting component 8 cuts the paper film output from the paper film feeding component 7 to the required length.

[0027] The glue spraying nozzle of the glue spraying component 3 and the paper film output end of the paper film feeding and cutting mechanism 4 are arranged sequentially from the outside to the inside on the input end of the processing and conveying component 6, which can sequentially complete the process steps of spraying glue onto the document bag to be processed and laminating the glue.

[0028] Specifically, such as Figure 3 As shown, the glue spraying assembly 3 includes a glue spraying bracket 3-1, a glue delivery pump, a glue nozzle 3-2, and two delivery conduits. The glue spraying bracket 3-1 is fixed to the mounting bracket 2, with its bottom spaced apart from the delivery surface of the processing and conveying assembly 6. The glue nozzle 3-2 is mounted on the bottom surface of the glue spraying bracket 3-1, with its spray nozzle facing directly towards the delivery surface of the processing and conveying assembly 6.

[0029] The glue delivery pump is installed on the main frame 1, and its input and output ends are connected to the external glue tank and glue nozzle 3-2 respectively through two delivery pipes. It is used to spray the glue in the glue tank onto the edge of the document bag being processed through the glue nozzle 3-2.

[0030] like Figure 3 and 4 As shown, the paper film feeding assembly 7 includes a guide conveyor bracket 7-1, a storage roller 7-2, a feeding motor, a tensioning assembly 9, and multiple guide rollers. The guide conveyor bracket 7-1 and the glue spraying bracket 3-1 are spaced apart, forming a conveying channel for the released paper film. The storage roller 7-2 is rotatably connected to the mounting bracket 2 and can rotate under the drive of the feeding motor, releasing the paper film wound on the storage roller 7-2. Guided by the guide rollers, the released paper film passes through the conveying channel and is output from the output port at the bottom of the conveying channel to the processed document bag.

[0031] Tensioning component 9 is located on the side of the conveyor channel and can clamp the paper film output from the conveyor channel. The end of the paper film is attached to the document bag being processed, which is conveyed below. The processing conveyor component 6 drives the document bag being processed to be conveyed outwards. With the clamping of tensioning component 9, the paper film located between the document bag being processed and tensioning component 9 is tensioned, which facilitates the paper film cutting component 8 to cut the paper film in the conveyor channel.

[0032] like Figure 3 As shown, there are two guide rollers: a transition guide roller 7-4 and an end guide roller 7-5. The transition guide roller 7-4 guides the paper film released from the storage roller 7-2 towards the end guide roller 7-5 for output. The end guide roller is positioned directly above the conveying channel and guides the released paper film towards one side of the conveying channel.

[0033] In this embodiment, an assistive component 10 is provided between the transition guide wheel 7-4 and the end guide wheel 7-5 to assist in the release of the paper film from the storage roller 7-2. Specifically, the assistive component 10 includes an assistive motor, a first assistive roller 10-1, a second assistive roller 10-2, and a slide assembly. The first assistive roller 10-1 and the second assistive roller 10-2 are arranged horizontally. The output shaft of the assistive motor is connected to the first assistive roller 10-1; the second assistive roller 10-2 is slidably connected to the mounting bracket 2 via the slide assembly, allowing it to move closer to or further away from the first assistive roller 10-1 as needed by the operator. When adjusted to a designated position, the second assistive roller 10-2's current position is locked to clamp the released paper film. When the storage roller 7-2 releases the paper film, the assistive motor drives the first assistive roller 10-1 to rotate, cooperating with the second assistive roller 10-2 to apply traction force to the paper film, thereby assisting in the smooth release of the paper film from the storage roller 7-2 and improving conveying stability.

[0034] In this embodiment, the slide assembly includes a slide base and a locking screw. The mounting bracket 2 has a through groove that mates with the slide base. The slide base is slidably connected within the groove. The second assist roller 10-2 is rotatably connected to the slide base. The locking screw is located on the back of the mounting bracket 2. The inner end of the locking screw passes through the groove and engages with the threaded connection of the slide base, allowing the slide base to move freely when loosened; and when tightened, it engages with the mounting bracket 2 to secure the slide base in its sliding position.

[0035] Furthermore, a pressure plate 11 is provided at the bottom of the guide conveyor bracket 7-1. The pressure plate 11 is set in an inclined state, and its bottom surface gradually approaches the conveying surface of the processing conveyor assembly 6 in the conveying direction of the processing conveyor assembly 6. After the paper film is adhered to the document bag being processed, it can be further pressed by the pressure plate 11 to ensure the firmness of the adhesion between the paper film and the adhesive on the document bag being processed.

[0036] like Figure 5 As shown, the tensioning assembly 9 includes a tensioning roller 9-1, a sliding bracket 9-2, a drive cylinder 9-3, and a control device. The sliding bracket 9-2 is slidably connected to the glue spraying bracket 3-1 and connected to the power output end of the drive cylinder 9-3, enabling it to reciprocate under the drive of the cylinder 9-3. The tensioning roller 9-1 is rotatably connected to the end of the sliding bracket 9-2, and when the sliding bracket 9-2 extends outward, it cooperates with the guide conveyor bracket 7-1 to clamp the paper film in the conveying channel.

[0037] In this embodiment, the control device controls the extension or retraction of the drive cylinder 9-3. The control device includes a timer switch, a limit switch, and a delay starter. The timer switch controls the activation of the drive cylinder 9-3, allowing its power output end to extend outwards at set intervals. The limit switch limits the outward extension of the drive cylinder 9-3 and signals it to switch the power output end from the extended state to the retracted state. The delay starter delays the limit switch, maintaining the extended state of the drive cylinder 9-3's power output end, thereby achieving the clamping and tensioning of the paper film by the tensioning roller 9-1. After a preset delay time, the limit switch sends a retraction signal to the drive cylinder 9-3, causing the tensioning roller 9-1 to retract, thus releasing the paper film.

[0038] Furthermore, a blowing assembly 12 is provided below the tensioning assembly 9 to blow the paper film that is suspended from above toward the output direction of the processing conveying assembly 6 in sequence, so as to ensure that when the paper film is adhered to the document bag being processed, its adhesive surface is facing the side of the processing conveying assembly 6, thus avoiding the back of the paper film from adhering to the document bag being processed and interfering with the conveying of the document bag being processed.

[0039] In this embodiment, the blower assembly 12 includes a blower pipe. One end of the blower pipe is connected to an external air source, and the other end is installed on the side of the glue spraying bracket 3-1, which can blow air toward the processing and conveying assembly 6.

[0040] The paper film cutting assembly 8 includes a pneumatic cutter and an air pump. The pneumatic cutter is positioned directly below the tension roller 9-1. Initially, the cutting section of the pneumatic cutter is retracted into the pneumatic cutter body. During cutting operations, the cutting section of the pneumatic cutter performs reciprocating vibration cutting driven by the air pump. The cutting section extends into the conveyor channel and cuts the tensioned paper film within the conveyor channel.

[0041] like Figure 1As shown, the feeding conveyor assembly, the limiting conveyor assembly, and the processing conveyor assembly 6 have the same structure, each including a synchronous conveyor belt, a drive motor, and multiple synchronous conveyor rollers. The synchronous conveyor rollers are arranged sequentially on the frame body 1 and are rotatably connected to it. The synchronous conveyor rollers are connected to each other via the synchronous conveyor belt. One of the synchronous conveyor rollers is connected to the power output shaft of the drive motor, enabling it to rotate under the drive motor's influence, thereby driving the synchronous conveyor belt to perform the conveying operation of the processed document bag.

[0042] The working principle of this utility model is as follows: First, the worker guides the first end of the paper film on the storage roller 7-2 sequentially around the transition guide roller 7-4, the first assist roller 10-1, and the end guide roller 7-5. Next, the distance between the second assist roller 10-2 and the first assist roller 10-1 is adjusted to clamp the paper film between the two rollers. This completes the pre-processing preparation.

[0043] During processing, the staff places the document bags to be laminated one by one at the input port of the bag feeding component 5. The feeding conveyor and the limiting conveyor in the bag feeding component 5 form a limiting conveyor for the document bags in the clamped state, and output them to the processing conveyor component 6.

[0044] When the document bag to be processed is conveyed to the input end of the processing conveyor assembly 6, the infrared sensor on the input end of the processing conveyor assembly 6 detects the entry of the document bag and sends a working signal to the glue spraying assembly 3 and the paper film feeding and cutting mechanism 4. The glue delivery pump starts and sprays the glue in the glue tank onto the sealing edge 101 of the document bag through the glue nozzle 3-2.

[0045] Subsequently, the feeding motor and the assist motor work simultaneously to release the paper film on the storage roller 7-2 and guide it outwards towards one side of the conveying channel. As the end of the paper film gradually approaches the conveying surface of the processing conveying component 6, the air blower blows air towards one side of the paper film to ensure that the side of the paper film closest to the processing conveying component 6 adheres to the adhesive on the document bag being processed.

[0046] The paper film continues to be output until its end is bonded to the adhesive on the document bag being processed. After the required bonding length, the drive cylinder 9-3 drives the sliding bracket 9-2 to slide towards the guide conveyor bracket 7-1, and drives the tension roller 9-1 to move synchronously, forming a clamping action between the guide conveyor bracket 7-1 and the paper film in the conveying channel. At the same time, the processing conveyor assembly 6 continues to convey the paper film bonded at the bottom outwards, so that the paper film between the document bag being processed and the tension roller 9-1 is in a taut state.

[0047] The cutting section of the pneumatic cutter can perform reciprocating vibration cutting driven by an air pump. The cutting section extends into the conveyor channel and cuts the paper film that is under tension in the conveyor channel, thereby completing the film lamination cutting operation.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A gluing and laminating device for express document bags, comprising a frame body (1), and a directional conveying assembly, a mounting bracket (2), a glue spraying assembly (3), and a paper film feeding and cutting mechanism (4) mounted on the frame body (1); the directional conveying assembly comprises a bag feeding assembly (5) and a processing conveying assembly (6) arranged in sequence, for directional conveying of the document bags to be processed, characterized in that: The glue spraying assembly (3) and the paper film feeding and cutting mechanism (4) are mounted on the mounting bracket (2); the glue spraying assembly (3) is mounted on the input end of the processing conveying assembly (6) and is used to spray glue onto the edge of the input processing document bag; The paper film feeding and cutting mechanism (4) includes a paper film feeding assembly (7) and a paper film cutting assembly (8); the paper film feeding assembly (7) includes a guide conveying bracket (7-1), a storage roller (7-2), a feeding motor, a tensioning assembly (9), and multiple guide rollers; the guide conveying bracket (7-1) and the glue spraying bracket (3-1) are spaced apart to form a conveying channel for the release of paper film; the storage roller (7-2) is rotatably connected to the mounting bracket (2) and can rotate under the drive of the feeding motor, so that the paper film wound on the storage roller (7-2) is released; the released paper film passes through the conveying channel under the guidance of each guide roller and is output from the output port at the bottom of the conveying channel to the processed document bag; the tensioning assembly (9) is set on the side of the conveying channel and can clamp the paper film output from the conveying channel; The paper film cutting component (8) is used to cut the paper film output when the storage roller (7-2) outputs paper film of the corresponding length; Below the tensioning component (9) is a blowing component (12); the blowing component (12) includes a blowing pipe; one end of the blowing pipe is connected to an external air source, and the other end is installed on the side of the glue spraying bracket (3-1), which can blow air toward the processing and conveying component (6).

2. The device for gluing and laminating of the file bag for express delivery according to claim 1, characterized in that: There are two guide rollers, namely a transition guide roller (7-4) and an end guide roller (7-5). The transition guide roller (7-4) is used to guide the paper film released by the storage roller (7-2) to the end guide roller (7-5) for output. The end guide roller is located directly above the conveying channel and is used to guide the released paper film to the side of the conveying channel for output.

3. The device for gluing and laminating of the file bag for express delivery according to claim 2, characterized in that: An assist assembly (10) is provided between the transition guide wheel and the end guide wheel (7-5); the assist assembly (10) includes an assist motor, a first assist roller (10-1), a second assist roller (10-2) and a slide assembly; wherein the first assist roller (10-1) and the second assist roller (10-2) are arranged in a horizontal direction; the output shaft of the assist motor is connected to the first assist roller (10-1); the second assist roller (10-2) is slidably connected to the mounting bracket (2) through the slide assembly.

4. The device for gluing and laminating of the file bag for express delivery according to claim 1, characterized in that: The bottom of the guide conveying bracket (7-1) is provided with a pressing plate (11); the bottom surface of the pressing plate (11) gradually moves closer to the conveying surface of the processing conveying assembly (6) in the conveying direction of the processing conveying assembly (6).

5. The device for gluing and laminating of the file bag for express delivery according to claim 1, characterized in that: The tensioning assembly (9) includes a tensioning roller (9-1), a sliding bracket (9-2), and a drive cylinder (9-3). The sliding bracket (9-2) is slidably connected to the glue spraying bracket (3-1) and connected to the power output end of the drive cylinder (9-3), and can reciprocate under the drive of the drive cylinder (9-3). The tensioning roller (9-1) is rotatably connected to the end of the sliding bracket (9-2), and can cooperate with the guide conveying bracket (7-1) to clamp the paper film in the conveying channel when the sliding bracket (9-2) extends outward.

6. The device for gluing and laminating of the file bag for express delivery according to claim 1, characterized in that: The glue spraying assembly (3) includes a glue spraying bracket (3-1), a glue delivery pump, a glue nozzle (3-2), and two delivery conduits; the glue spraying bracket (3-1) is fixed on the mounting bracket (2), and its bottom is spaced apart from the delivery surface of the processing delivery assembly (6); the glue nozzle (3-2) is installed on the bottom surface of the glue spraying bracket (3-1), and the spray nozzle of the glue nozzle (3-2) is directly facing the delivery surface of the processing delivery assembly (6).

7. The device for gluing and laminating of the file bag for express delivery according to claim 1, characterized in that: The paper film cutting assembly (8) includes a pneumatic cutter and an air pump; wherein the pneumatic cutter is located directly below the tension roller (9-1); in the initial state, the cutting part of the pneumatic cutter is retracted into the pneumatic cutter.

8. The device for gluing and laminating of the file bag for express delivery according to claim 1, characterized in that: The bag feeding assembly (5) includes a lower feeding conveying assembly and an upper limiting conveying assembly; the conveying surface of the feeding conveying assembly and the conveying surface of the limiting conveying assembly are in contact with each other, which can form a limiting conveying of the processed document bag towards the processing conveying assembly (6) in the clamping state.

9. The adhesive coating device for express document bags according to claim 8, characterized in that: The feeding conveying assembly, the limiting conveying assembly, and the processing conveying assembly (6) have the same structure, each including a synchronous conveyor belt, a drive motor, and multiple synchronous conveying rollers; each of the synchronous conveying rollers is arranged sequentially on the frame body (1) and is rotatably connected to the frame body (1); each synchronous conveying roller is connected to the synchronous conveyor belt; one of the synchronous conveying rollers is connected to the power output shaft of the drive motor.

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