A double-layer gluing device for processing packaging paper bags

Abstract

This utility model discloses a double-layer gluing device for processing packaging paper bags, relating to the technical field of gluing devices. It includes a workbench, a glue spraying cylinder, and a glue-coating plate mechanism. The glue spraying cylinder is located above the workbench near its midpoint and has two sets, upper and lower. A glue-coating plate mechanism is installed on one side of the glue spraying cylinder, and several glue nozzles are arranged side-by-side on one side of the surface of the glue spraying cylinder. In this utility model, when the packaging paper bag is being glued, the glue-coating plate mechanism and the glue spraying cylinder rotate together, evenly scraping the glue onto both sides of the paper bag. This not only makes the glue distribution more uniform but also strengthens the seal at the glued joints of the paper bag. Simultaneously, an inclined plate is provided at the bottom of the glue-coating plate mechanism, tilting towards both sides to scrape excess glue off the surface of the paper bag, ensuring a consistent glue thickness on both sides and preventing problems such as seepage and accumulation due to excessive glue.

Description

Technical Field

[0001] This utility model relates to the field of adhesive coating equipment technology, specifically a double-layer adhesive coating device for processing packaging paper bags. Background Technology

[0002] The main functions of adhesive coating on packaging paper bags are as follows: First, it firmly bonds all parts of the paper bag together, such as the bag body and bottom, ensuring that the paper bag will not easily crack or fall apart during use and guaranteeing its structural stability. Second, it enhances the sealing performance of the paper bag, preventing leakage of the contents or damage from the external environment, thus providing good protection. Third, it can improve the strength and stiffness of the paper bag to a certain extent, making it more durable and easier to handle and store.

[0003] The existing Chinese utility model patent with publication number CN212046179U discloses a double-layer gluing device for processing packaging paper bags. Addressing the low coating efficiency of existing gluing devices for packaging bag production, the following solution is proposed: It includes a base and a glue storage tank. Side plates are fixed to both sides of the top of the base, and two sets of conveying devices are installed between the two side plates. A gap is provided between the two sets of conveying devices, and each set of conveying devices consists of multiple conveying cylinders. A support frame is fixed to the top of the base, and two first telescopic devices and an air pump are fixed to the top of the support frame. The bottoms of the two first telescopic devices are fixedly connected to the glue storage tank, and a feed pipe is fixed to the top of the glue storage tank. This utility model has a reasonable structure, is easy to operate, and can simultaneously coat both sides of packaging bags with glue, thereby improving coating efficiency and ensuring uniform coating, making it easy to promote and use.

[0004] Currently, the double-layer gluing equipment used in packaging paper bag processing still has the following problems:

[0005] Most commercially available paper bags use single-sided adhesive bonding. Single-sided adhesive bonding has relatively low adhesion and sealing performance. When subjected to heavy weight or external force, the adhesive may come unglued. Furthermore, because the adhesive has a certain stickiness, it cannot be applied completely and evenly during the bonding process, resulting in inconsistent adhesion of the paper bags and affecting their quality. Utility Model Content

[0006] The purpose of this invention is to provide a double-layer adhesive coating device for processing packaging paper bags, so as to solve the problems mentioned in the background art.

[0007] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0008] This utility model provides a double-layer glue coating device for processing packaging paper bags, including a workbench, a glue spraying cylinder and a glue coating plate mechanism. The glue spraying cylinder is located above the workbench near the midpoint and has two sets, upper and lower. A glue coating plate mechanism is installed on one side of the glue spraying cylinder. Several glue spraying nozzles are arranged side by side on one side of the surface of the glue spraying cylinder, and a spray head is installed above the glue spraying nozzles. The bottom of the glue spraying nozzles is interconnected with a glue inlet pipe, and a presser is installed on one side of the glue inlet pipe.

[0009] The glue-coating plate mechanism is fixedly connected to both sides of the connecting frame, and a mounting block is installed at the bottom of one side of the glue-coating plate mechanism. One side of the mounting block is fixedly connected to the inclined plate. A groove is opened in the lower middle of the surface of the inclined plate, and the inclined plate is inclined close to the bottom of the glue-coating plate mechanism.

[0010] Preferably, a support frame is installed at the top of the workbench, and a winding roller is installed between every two sets of support frames. One side of the glue spraying cylinder is rotatably connected to a servo motor, and a device box is installed at the bottom of the glue spraying cylinder.

[0011] Preferably, the glue spraying cylinder is equipped with rotating shafts on both sides, and the glue spraying cylinder is rotatably connected to the servo motor through the rotating shafts. A feed port is installed on one side edge of the glue spraying cylinder. One side of the rotating shaft is inserted through the top of the support rod, and a bottom block is installed at the bottom of the support rod. One side of the bottom block is fixedly connected to one end of the push rod, and the other end of the push rod is connected to the driver.

[0012] Preferably, one end of the connecting frame is fixedly connected to the support rod, and the bottom of the glue coating plate mechanism and the bottom of the glue spraying cylinder are on the same horizontal line.

[0013] Preferably, the glue inlet pipe is located on one side inside the glue spraying cylinder, and the glue outlet discharges glue liquid into the glue spraying cylinder through the glue inlet pipe.

[0014] Preferably, the support frame includes a connecting rod that is horizontally connected at the bottom, and a shaft groove is provided on one side of the support frame. A roller clamp is provided inside the shaft groove. The two sides of the winding roller are connected to the roller shaft, and the roller shaft is inserted into the inside of the roller clamp.

[0015] Preferably, paper is connected between the winding rollers, and the two sets of glue spraying cylinders are located on the side of the paper, and one end of the glue coating plate mechanism is in contact with the paper surface.

[0016] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects:

[0017] 1. When the packaging paper bag is being coated with glue, the glue spraying cylinder sprays the glue inside onto one side of the packaging paper through the glue spraying nozzle and spray head. This allows for spraying over a certain area on the surface of the packaging paper, preventing the glue from concentrating in one place and facilitating the even distribution of the glue in the later stages. At the same time, the position of the spray head is adjusted by the rotation of the servo motor, which can spray evenly on both sides of the paper bag. This not only improves the efficiency of the paper bag coating process but also increases the sealing and adhesion of the paper bag, ensuring that all parts of the paper bag are tightly connected.

[0018] 2. When the packaging paper bag is being coated with glue, the glue coating plate mechanism and the glue spraying cylinder rotate together to evenly scrape the glue on both sides of the paper bag. This not only makes the glue distribution more uniform but also makes the sealing of the paper bag more secure. At the same time, the bottom of the glue coating plate mechanism is equipped with inclined plates that tilt to both sides of the glue coating plate mechanism. This allows excess glue to be scraped off the surface of the paper bag, ensuring that the thickness of the glue on both sides of the paper bag is consistent. This prevents problems such as seepage and accumulation of glue due to excessive glue on the paper bag. Attached Figure Description

[0019] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0020] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the glue spraying cylinder of this utility model;

[0023] Figure 3 This is a schematic diagram of the adhesive coating plate mechanism of this utility model;

[0024] Figure 4 This is a structural schematic diagram of the support frame of this utility model;

[0025] In the picture:

[0026] 1. Workbench; 2. Support frame; 21. Connecting rod; 22. Shaft groove; 23. Roller clamp; 3. Winding roller; 4. Glue spraying cylinder; 41. Rotating shaft; 42. Glue spraying nozzle; 43. Feed inlet; 44. Spray head; 45. Glue inlet pipe; 46. Presser; 47. Support rod; 48. Push rod; 49. Driver; 5. Servo motor; 6. Device box; 7. Glue coating plate mechanism; 71. Connecting frame; 72. Mounting block; 73. Inclined plate; 74. Groove. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0028] Please see Figures 1-4 A double-layer gluing device for processing packaging paper bags includes a workbench 1, a glue spraying cylinder 4, and a glue coating plate mechanism 7. A support frame 2 is installed at the top of the workbench 1. The support frame 2 includes a connecting rod 21 that is horizontally connected at the bottom. A shaft groove 22 is provided on one side of the support frame 2, and a roller clamp 23 is provided inside the shaft groove 22. The two sides of the winding roller 3 are connected to the roller shaft, and the roller shaft is inserted into the inside of the roller clamp 23.

[0029] The present invention relates to a double-layer gluing device for processing packaging paper bags. The support frame 2 supports the winding roller 3, and the distance between the two sets of winding rollers 3 can be controlled by adjusting the distance of the support frame 2 through the connecting rod 21, thereby controlling the force of the packaging paper between the two sets of winding rollers 3.

[0030] The glue spraying cylinder 4 is located above the workbench 1 near the midpoint. The glue spraying cylinder 4 is provided with two sets, upper and lower. A glue application plate mechanism 7 is installed on one side of the glue spraying cylinder 4. Several glue spraying nozzles 42 are arranged side by side on one side of the surface of the glue spraying cylinder 4. A spray head 44 is installed above the glue spraying nozzles 42. The bottom of the glue spraying nozzles 42 is interconnected with a glue inlet pipe 45. A presser 46 is installed on one side of the glue inlet pipe 45.

[0031] The glue spraying cylinder 4 has rotating shafts 41 installed on both sides, and the glue spraying cylinder 4 is rotatably connected to the servo motor 5 through the rotating shafts 41. A feed port 43 is installed on one side edge of the glue spraying cylinder 4. One side of the rotating shaft 41 is inserted through the top of the support rod 47, and a bottom block is installed at the bottom of the support rod 47. One side of the bottom block is fixedly connected to one end of the push rod 48, and the other end of the push rod 48 is connected to the driver 49. The glue inlet pipe 45 is located inside the glue spraying cylinder 4, and the glue spraying nozzle 42 discharges the glue liquid inside the glue spraying cylinder 4 through the glue inlet pipe 45.

[0032] This utility model discloses a double-layer gluing device for processing packaging paper bags. The internal device of the glue spraying cylinder 4 contains a certain capacity of glue liquid. The glue liquid is sprayed onto both sides of the packaging paper through the glue spraying nozzle 42 and the spray head 44, which can improve the gluing efficiency of the packaging paper. The spraying setting allows the glue liquid to be distributed more evenly on the surface of the packaging paper, preventing the glue liquid from accumulating and seeping. It also facilitates the even application of glue liquid in subsequent applications. At the same time, a servo motor 5 is installed on one side of the glue spraying cylinder 4. The servo motor 5 adjusts the rotation speed of the glue spraying cylinder 4, so that the glue spraying cylinder 4 sprays glue according to the bonding area of ​​the packaging paper bag, and the bottom of the glue inlet pipe 45 contacts the glue liquid inside the glue spraying cylinder 4, preventing the glue liquid outside the glue inlet pipe 45 from sticking.

[0033] A winding roller 3 is installed between every two sets of support frames 2. One side of the glue spraying cylinder 4 is rotatably connected to the servo motor 5, and a device box 6 is installed at the bottom of the glue spraying cylinder 4.

[0034] The glue-coating plate mechanism 7 is fixedly connected to both sides of the connecting frame 71, and a mounting block 72 is installed on the bottom of one side of the glue-coating plate mechanism 7. The mounting block 72 is fixedly connected to the inclined plate 73 on one side. A groove 74 is provided in the lower middle of the surface of the inclined plate 73, and the inclined plate 73 is inclined close to the bottom of the glue-coating plate mechanism 7.

[0035] One end of the connecting frame 71 is fixedly connected to the support rod 47, and the bottom of the glue coating plate mechanism 7 and the bottom of the glue spraying cylinder 4 are on the same horizontal line. Paper is connected between the winding rollers 3, and the two sets of glue spraying cylinders 4 are located on the side of the paper, and one end of the glue coating plate mechanism 7 is in contact with the paper surface.

[0036] This utility model discloses a double-layer glue coating device for processing packaging paper bags. One end of the glue coating plate mechanism 7 is located on both sides of the paper and is in contact with the surface of the paper. When the paper is sprayed with glue, the glue coating plate mechanism 7 and the glue spraying cylinder 4 operate synchronously, which can evenly coat the sprayed glue and ensure that the glue is evenly distributed. At the same time, an inclined plate 73 is provided at the bottom of the glue coating plate mechanism 7. The inclined plate 73 is inclined to the outside of the glue coating plate mechanism 7, so that the excess glue flows into the inside of the device box 6 through the inclined plate 73 and the groove 74 at the bottom, making the thickness of the glue uniform and reusing the excess glue.

[0037] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A double layer gluing device for packaging paper bag processing, comprising a workbench (1), a glue spraying cylinder (4) and a gluing plate mechanism (7), characterized in that: The glue spraying cylinder (4) is located above the workbench (1) near the midpoint. The glue spraying cylinder (4) is provided with two sets, upper and lower. A glue coating plate mechanism (7) is installed on one side of the glue spraying cylinder (4). Several glue spraying nozzles (42) are arranged side by side on one side of the surface of the glue spraying cylinder (4). A spray head (44) is installed above the glue spraying nozzles (42). The bottom of the glue spraying nozzles (42) is interconnected with a glue inlet pipe (45). A presser (46) is installed on one side of the glue inlet pipe (45). The glue-coating plate mechanism (7) is fixedly connected to both sides of the connecting frame (71), and a mounting block (72) is installed at the bottom of one side of the glue-coating plate mechanism (7). The mounting block (72) is fixedly connected to the inclined plate (73) on one side. A groove (74) is provided in the lower middle of the surface of the inclined plate (73), and the inclined plate (73) is inclined to the bottom of the glue-coating plate mechanism (7).

2. The double coating and gluing device for processing paper bags according to claim 1, characterized in that: A support frame (2) is installed at the top of the workbench (1), and a winding roller (3) is installed between every two sets of support frames (2). One side of the glue spraying cylinder (4) is rotatably connected to a servo motor (5), and a device box (6) is installed at the bottom of the glue spraying cylinder (4).

3. The double coating gluing device for processing of wrapping paper bags according to claim 1, characterized in that: The glue spraying cylinder (4) has rotating shafts (41) installed on both sides, and the glue spraying cylinder (4) is rotatably connected to the servo motor (5) through the rotating shafts (41). A feed port (43) is installed on one side edge of the glue spraying cylinder (4). One side of the rotating shaft (41) is inserted through the top of the support rod (47), and a bottom block is installed at the bottom of the support rod (47). One side of the bottom block is fixedly connected to one end of the push rod (48), and the other end of the push rod (48) is connected to the driver (49).

4. The double coating and gluing device for processing paper bags according to claim 3, characterized in that: One end of the connecting frame (71) is fixedly connected to the support rod (47), and the bottom of the glue coating plate mechanism (7) and the bottom of the glue spraying cylinder (4) are on the same horizontal line.

5. The double coating gluing device for processing of wrapping paper bags according to claim 3, characterized in that: The glue inlet pipe (45) is located on one side inside the glue spraying cylinder (4), and the glue outlet (42) discharges the glue liquid inside the glue spraying cylinder (4) through the glue inlet pipe (45).

6. The double coating gluing device for processing of wrapping paper bags according to claim 2, characterized in that: The support frame (2) includes a connecting rod (21) that is horizontally connected at the bottom, and a shaft groove (22) is provided on one side of the support frame (2), and a roller clamp (23) is provided inside the shaft groove (22). The two sides of the winding roller (3) are connected to the roller shaft, and the roller shaft is inserted inside the roller clamp (23).

7. The double coating gluing device for processing of wrapping paper bags according to claim 2, characterized in that: Paper is connected between the winding rollers (3), and two sets of glue spraying cylinders (4) are located on the side of the paper, and one end of the glue coating plate mechanism (7) is in contact with the paper surface.

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