A paper bag gluing mechanism

Abstract

This utility model discloses a paper bag gluing mechanism, including a frame, a glue tray installed inside the frame, a glue roller assembly installed above the glue tray, a glue dispensing component installed on the glue roller assembly, and a glue dispensing plate with evenly distributed glue dots installed on the glue dispensing component. A glue roller, adjustable in position to the glue roller assembly, is installed between the glue tray and the glue roller assembly. The lower side of the glue roller is immersed in the glue in the glue tray. A glue leveling roller, adjustable in position to the glue roller, is installed on the frame. The glue leveling roller can be slightly moved to adjust the gap of the glue roller, precisely controlling the glue thickness of the glue roller to ensure uniform application, avoiding poor sealing of the packaging bag and material waste, and improving the glue dispensing quality. By changing the distance between the glue roller and the glue dots, the amount of glue adhering can be increased or decreased, flexibly adjusting the glue amount to meet the needs of different packaging bags and improving the equipment's versatility. The glue application, glue leveling, and glue dispensing processes are performed sequentially, reducing intermediate time losses, improving production efficiency, and adapting to large-scale high-speed production.

Description

Technical Field

[0001] This utility model relates to a production line for packaging bags such as cement bags and chemical bags, and in particular to a paper bag gluing mechanism. Background Technology

[0002] In the production of packaging bags such as cement bags and chemical bags, the glue application process is a key step to ensure the sealing and structural strength of the packaging bags. Traditional glue application methods for packaging bags mostly rely on manual labor or semi-automatic equipment, which has problems such as low efficiency, uneven glue application, and insufficient glue volume control precision, making it difficult to meet the needs of large-scale industrial production.

[0003] With the rapid development of the packaging industry, higher requirements have been placed on the production speed and quality of packaging bags. Although existing automated dispensing equipment has improved production efficiency to some extent, there are still obvious defects in glue thickness control and glue quantity adjustment. For example, the distance between the glue application roller and the dispensing mechanism of some equipment is fixed, making it impossible to flexibly adjust the contact pressure between the glue application point and the glue application roller according to the material of different packaging bags and glue type. This results in unstable glue adhesion and affects the dispensing quality. At the same time, the gap between the glue leveling roller and the glue application roller is inconvenient to adjust, making it difficult to accurately control the thickness of the glue after smoothing. This can easily lead to problems such as excessive glue thickness causing waste or excessive glue thickness causing sealing failure. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a paper bag gluing mechanism.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A paper bag gluing mechanism includes a frame, a lifting glue tray installed inside the frame, a glue dispensing roller assembly rotatably mounted above the glue tray, a glue dispensing component mounted on the glue dispensing roller assembly, a detachable glue dispensing plate mounted on the glue dispensing component, glue dots evenly distributed on the glue dispensing plate, a glue dispensing roller adjustable in position between the glue tray and the glue dispensing roller assembly, the lower side of the glue dispensing roller being immersed in glue in the glue tray, and a glue leveling roller adjustable in position to the glue dispensing roller mounted on the frame.

[0007] The frame is located below the glue tray, and a first rotating shaft and a second rotating shaft are installed on the front and rear sides of the glue tray. The left and right ends of the first rotating shaft and the second rotating shaft are connected to brackets fixed to the glue tray through linkage blocks. The frame is equipped with cylinders for driving the brackets to lift and lower.

[0008] The first lever frame is symmetrically installed on the left and right sides of the frame. The upper roller is installed on the upper end of the first lever frame. The lower end of the first lever frame is connected to the frame through a first reset spring. A first cam structure is provided on the first rotating shaft corresponding to the first lever frame. The first reset spring presses the lower end of the first lever frame toward the first cam structure.

[0009] The machine frame is symmetrically equipped with second lever frames on its left and right sides. The glue-spreading roller is installed on the upper end of the second lever frame. The lower end of the second lever frame is connected to the machine frame through a second reset spring. A second cam structure is provided on the second rotating shaft corresponding to the second lever frame. The second reset spring presses the lower end of the second lever frame against the second cam structure.

[0010] The dispensing assembly includes a support plate, on both sides of which are hinged along the length direction a plurality of clamps for holding the dispensing plate are arranged. The clamps are U-shaped. A slidable connecting rod is installed at the bottom of the support plate. A push block is installed on the connecting rod corresponding to the opening of the clamp. The clamp is provided with an inclined surface corresponding to the push block.

[0011] One end of the connecting rod is equipped with a swing arm that rotates synchronously with the rotating nut. A guide wheel is installed at the end of the swing arm. The support plate has an end bearing installed at the same end of the swing arm. An "L"-shaped groove is provided on the end bearing. The guide wheel is movably installed in the "L"-shaped groove. A spring for resetting the connecting rod is installed at the other end of the support plate.

[0012] The "L"-shaped groove has a slot on its side wall along the length of the support plate.

[0013] The two symmetrical clips are connected at their bottoms by a tension spring.

[0014] The beneficial effects of this utility model are as follows: A paper bag gluing mechanism includes a frame, a lifting glue tray installed inside the frame, a glue dispensing roller assembly rotatably mounted above the glue tray, a glue dispensing component mounted on the glue dispensing roller assembly, a detachable glue dispensing plate mounted on the glue dispensing component, glue dots evenly distributed on the glue dispensing plate, a glue dispensing roller that can be adjusted in position between the glue tray and the glue dispensing roller assembly, the lower side of the glue dispensing roller being immersed in the glue in the glue tray, and a glue leveling roller that can be adjusted in position on the frame. The glue leveling roller can be slightly moved to adjust the gap of the glue dispensing roller, precisely controlling the glue thickness of the glue dispensing roller, ensuring uniform application, avoiding poor sealing of packaging bags and material waste, and improving glue dispensing quality; in addition, by changing the distance between the glue dispensing roller and the glue dots, the amount of glue adhering can be increased or decreased, flexibly adjusting the amount of glue to meet the needs of different packaging bags, improving the versatility of the equipment; the glue dispensing, glue leveling, and glue dispensing processes are carried out in sequence, reducing intermediate time loss, improving production efficiency, and adapting to large-scale high-speed production. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is one of the structural diagrams of this utility model;

[0017] Figure 2 This is the second structural diagram of this utility model;

[0018] Figure 3 This is one of the structural diagrams of the glue tray area;

[0019] Figure 4 This is the second structural diagram of the glue tray area;

[0020] Figure 5 This is a structural diagram of the dispensing roller assembly;

[0021] Figure 6 This is one of the structural diagrams of the dispensing assembly;

[0022] Figure 7 This is the second structural diagram of the dispensing assembly;

[0023] Figure 8 This is an exploded view of the dispensing assembly. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0025] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0026] The following describes some embodiments of the present invention with reference to the accompanying drawings.

[0027] Reference Figures 1-8A paper bag gluing mechanism includes a frame 1, within which a lifting glue tray 2 is installed. A glue roller assembly 3 is rotatably mounted above the glue tray 2. A glue roller assembly 4 is mounted on the glue roller assembly 3. A detachable glue plate 5 is mounted on the glue roller assembly 4. Glue dots 6 are evenly distributed on the glue plate 5 (the glue dots 6 are installed according to actual production needs, and it is not necessary to install all the mounting holes on the glue plate 5). A glue roller 7, adjustable in position to the glue roller assembly 3, is installed between the glue tray 2 and the glue roller assembly 3. The lower side of the glue roller 7 is immersed in... In the glue tray 2, a spreading roller 8 is installed on the frame 1, which can be adjusted to move towards the gluing roller 7. The spreading roller 8 can be slightly moved towards the gluing roller 7 to adjust the gap, precisely control the thickness of the glue on the gluing roller, ensure uniform application, avoid poor sealing of packaging bags and material waste, and improve the glue dispensing quality. In addition, by changing the distance between the gluing roller 7 and the gluing point 6, the amount of glue adhering can be increased or decreased, flexibly adjusting the amount of glue to meet the needs of different packaging bags and improving the versatility of the equipment. The gluing, spreading, and dispensing processes are carried out in sequence, reducing intermediate time loss, improving production efficiency, and adapting to large-scale high-speed production.

[0028] In this embodiment, the dispensing roller assembly 3 is equipped with the dispensing assembly 4 on both sides, meaning that one rotation can complete two dispensing processes, which can adapt to faster production line speeds.

[0029] The frame 1 is located below the glue tray 2, and a first rotating shaft 9 and a second rotating shaft 10 are installed on the front and rear sides of the glue tray 2. The left and right ends of the first rotating shaft 9 and the second rotating shaft 10 are connected to the bracket 12 fixed to the glue tray 2 through the linkage block 11. The frame 1 is equipped with a cylinder 13 for driving the bracket 12 to rise and fall.

[0030] During maintenance, such as when cleaning the glue tray 2, the cylinder 13 retracts, the bracket 12 and the glue tray 2 descend synchronously, and at the same time, the linkage block 11 swings synchronously and rotates around the corresponding rotating shaft. At this time, the first rotating shaft 9 and the second rotating shaft 10 are fixed.

[0031] The frame 1 is symmetrically equipped with first lever frames 14 on its left and right sides. The upper rubber roller 7 is installed on the upper end of the first lever frame 14. The lower end of the first lever frame 14 is connected to the frame 1 through a first reset spring 15. The first rotating shaft 9 is provided with a first cam structure corresponding to the first lever frame 14. The first reset spring 15 presses the lower end of the first lever frame 14 toward the first cam structure.

[0032] Furthermore, a first rotating handle 31 is installed at the end of the first rotating shaft 9. By shaking the first rotating handle 31, the first rotating shaft 9 rotates synchronously, and the first cam structure also rotates. The first lever frame 14 will swing slightly with the rotation of the first cam structure. Through the action of the first lever frame 14 on the glue roller 7, the distance between the glue roller 7 and the glue application point 6 can be adjusted.

[0033] The frame 1 has a second lever frame 16 symmetrically installed on its left and right sides. The glue-spreading roller 8 is installed on the upper end of the second lever frame 16. The lower end of the second lever frame 16 is connected to the frame 1 through a second reset spring 17. The second rotating shaft 10 is provided with a second cam structure corresponding to the second lever frame 16. The second reset spring 17 presses the lower end of the second lever frame 16 toward the second cam structure.

[0034] Similarly, a second rotating handle 32 is installed at the end of the second rotating shaft 10. By shaking the second rotating handle 32, the second rotating shaft 10 rotates synchronously, and the second cam structure also rotates. The second lever frame 16 will swing slightly with the rotation of the second cam structure. The second lever frame 16 acts on the glue-spreading roller 8, thereby adjusting the gap between the glue-spreading roller 8 and the glue-applying roller 7.

[0035] Furthermore, the frame 1 is equipped with end caps 33 at both ends of the glue-spreading roller 8 and the glue-applying roller 7. The purpose of these end caps is to prevent glue from splashing. (The liquid in the middle part of the roller body and the surrounding liquid can form a relatively stable constraint, and the centrifugal force and other effects are balanced more evenly, so the splashing is not obvious. However, the liquid at the edges of both ends of the roller body is easily affected by gravity and surface tension imbalance, and cannot continue to adhere to the roller body surface, so it will splash out in the form of water droplets.)

[0036] The dispensing assembly 4 includes a support plate 18. Several clamps 19 for holding the dispensing plate 5 are hinged to both sides of the support plate 18 along the length direction. The clamps 19 have a "U" shaped structure. A slidable connecting rod 20 is installed at the bottom of the support plate 18. A push block 21 is installed on the connecting rod 20 corresponding to the opening of the clamp 19. The clamp 19 is provided with an inclined surface 22 corresponding to the push block 21.

[0037] During installation, the dispensing plate 5 is inserted into the space between the clip 19 and the top surface of the support plate 18. By pulling the connecting rod 20, the push block 21 slides along the inclined surface 22, thereby causing the clip 19 to rotate and press the dispensing plate 5 onto the support plate 18. During disassembly, the connecting rod 20 is pushed back to its original position. At this time, the clip 19 is not subjected to external force, and the dispensing plate 5 can be easily pulled out. The operation is simple and convenient.

[0038] One end of the connecting rod 20 is equipped with a swing arm 24 that rotates synchronously with the rotating nut 23. A guide wheel 25 is installed at the end of the swing arm 24. The support plate 18 has an end bearing 26 installed at the same end of the swing arm 24. An "L"-shaped groove 27 is provided on the end bearing 26. The guide wheel 25 is movably installed in the "L"-shaped groove 27. A spring 28 for resetting the connecting rod 20 is installed at the other end of the support plate 18.

[0039] The worker rotates the rotating nut 23 using a tool (such as a wrench), and the swing arm 24 rotates synchronously, causing the guide wheel 25 to rotate around the rotating nut 23. When the guide wheel 25 rolls relative to the "L"-shaped groove 27, the swing arm 24 moves accordingly (at the same time, the spring 28 is further compressed; after the movement is completed, the length direction of the swing arm 24 is consistent with the stretching direction of the spring 28), moving the rotating nut 23 outward, thereby pushing out the connecting rod 20. At this time, the push block 21 moves towards the clamp 19 and slides along the inclined surface 22, causing the clamp 19 to rotate, thereby pressing the dispensing plate 5 onto the support plate 18, thus completing the installation of the dispensing plate 5. When the worker rotates the rotating nut 23 in the opposite direction, after the length direction of the swing arm 24 forms an angle with the stretching direction of the spring 28, the spring 28 can pull the connecting rod 20 to reset, at which point the dispensing plate 5 can be pulled out.

[0040] The L-shaped groove 27 has a slot 29 on its side wall along the length of the support plate 18. After the dispensing plate 5 is installed, the guide wheel 25 is inserted into the slot 29 to limit the movement and prevent it from being released automatically.

[0041] Furthermore, the frame 1 is provided with mounting and dismounting holes 34 for mounting and dismounting the dispensing plate 5.

[0042] The two symmetrical clips 19 are connected at their bottoms by a tension spring 30. The tension spring 30 pulls the clips 19 tight, causing the clips 19 to tend to move away from the top surface of the support plate 18, thereby keeping the distance between the clips 19 and the top surface of the support plate 18 at its maximum, making it easier to insert the adhesive plate 5.

[0043] In this invention, the term "multiple" refers to two or more items unless otherwise expressly defined. The term "and / or" as used herein includes any and all combinations of one or more of the related listed items. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] It should be noted that when a component is referred to as being "assembled on," "mounted on," "fixed to," or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0045] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A paper bag gluing mechanism, comprising a frame (1), characterized in that... The frame (1) is equipped with a lifting glue tray (2). A glue roller assembly (3) is rotatably mounted above the glue tray (2). A glue assembly (4) is mounted on the glue roller assembly (3). A detachable glue plate (5) is mounted on the glue assembly (4). Glue dots (6) are evenly distributed on the glue plate (5). A glue roller (7) that can be adjusted to the position of the glue roller assembly (3) is installed between the glue tray (2) and the glue roller assembly (3). The lower side of the glue roller (7) is immersed in the glue in the glue tray (2). A glue leveling roller (8) that can be adjusted to the position of the glue roller (7) is installed on the frame (1).

2. The paper bag gluing mechanism according to claim 1, characterized in that... The frame (1) is located below the glue tray (2). A first rotating shaft (9) and a second rotating shaft (10) are installed on the front and rear sides of the glue tray (2). The left and right ends of the first rotating shaft (9) and the second rotating shaft (10) are connected to brackets (12) that are fixed to the glue tray (2) through linkage blocks (11). The frame (1) is equipped with a cylinder (13) for driving the brackets (12) to rise and fall.

3. The paper bag gluing mechanism according to claim 2, characterized in that... The first lever frame (14) is symmetrically installed on the left and right sides of the frame (1). The upper roller (7) is installed on the upper end of the first lever frame (14). The lower end of the first lever frame (14) is connected to the frame (1) through the first reset spring (15). The first rotating shaft (9) is provided with a first cam structure corresponding to the first lever frame (14). The first reset spring (15) presses the lower end of the first lever frame (14) against the first cam structure.

4. The paper bag gluing mechanism according to claim 2, characterized in that... The machine frame (1) is symmetrically equipped with second lever frames (16) on the left and right sides. The glue roller (8) is installed on the upper end of the second lever frame (16). The lower end of the second lever frame (16) is connected to the machine frame (1) through a second reset spring (17). A second cam structure is provided on the second rotating shaft (10) corresponding to the second lever frame (16). The second reset spring (17) presses the lower end of the second lever frame (16) against the second cam structure.

5. The paper bag gluing mechanism according to claim 1, characterized in that... The dispensing assembly (4) includes a support plate (18). Several clips (19) for holding the dispensing plate (5) are hinged to both sides of the support plate (18) along the length direction. The clips (19) have a "U" shaped structure. A slidable connecting rod (20) is installed at the bottom of the support plate (18). A push block (21) is installed on the connecting rod (20) corresponding to the opening of the clip (19). The clip (19) is provided with an inclined surface (22) corresponding to the push block (21).

6. The paper bag gluing mechanism according to claim 5, characterized in that... One end of the connecting rod (20) is equipped with a swing arm (24) that rotates synchronously with the rotating nut (23). A guide wheel (25) is installed at the end of the swing arm (24). The support plate (18) is located at the same end of the swing arm (24) and has an end bearing (26) installed thereon. An "L"-shaped groove (27) is provided on the end bearing (26). The guide wheel (25) is movably installed in the "L"-shaped groove (27). A spring (28) for resetting the connecting rod (20) is installed at the other end of the support plate (18).

7. The paper bag gluing mechanism according to claim 6, characterized in that... A slot (29) is provided on the side wall of the "L"-shaped groove (27) located in the length direction of the support plate (18).

8. The paper bag gluing mechanism according to claim 5, characterized in that... The bottoms of the two symmetrical clips (19) are connected by a tension spring (30).

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