Packaging paper gluing device

Abstract

The utility model provides a packaging paper gluing device which comprises an equipment frame provided with a platform, an equipment cavity and a glue accumulation groove, the equipment cavity is located below the platform, a driving motor and a negative pressure fan are arranged in the equipment cavity, and glue is contained in the glue accumulation groove; the traction roller is rotationally mounted on the equipment frame and is positioned on one side of the platform and above the glue accumulation groove; the negative pressure roller is rotatably mounted on the equipment frame, is arranged in parallel with the traction roller and is positioned at the downstream of the traction roller, the negative pressure roller is hollow, air holes are uniformly formed in the outer wall of the negative pressure roller, and the negative pressure roller is connected with a negative pressure fan through a connecting pipe; and the gluing roller is rotationally mounted on the equipment frame and is positioned right below the traction roller and the negative pressure roller. The packaging paper is prevented from being wound into the gluing roller, the occurrence frequency of paper jam faults is greatly reduced, the gluing process of the packaging paper can be smoothly completed on a high-speed production line, frequent shutdown for paper jam cleaning is not needed, the production efficiency is improved, the continuity of the production line is guaranteed, and the labor cost and the equipment loss are reduced.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, and in particular to a gluing device for packaging paper. Background Technology

[0002] In the packaging industry, water-based sealing adhesives are used for pasting packaging paper, making adhesive application a crucial and fundamental step. Traditional packaging paper adhesive application devices generally employ a relatively simple structure, typically relying solely on an application roller to directly dip into the adhesive and apply it to the packaging paper. However, this simplistic design has revealed numerous serious problems in actual production.

[0003] On the one hand, uneven glue application occurs frequently. Because it's difficult to ensure consistent glue application with the gluing roller each time, and the glue distribution on the packaging paper during coating is easily affected by various factors such as roller speed, differences in paper material, and equipment vibration. For example, when the packaging paper has a certain thickness deviation or inconsistent surface roughness, the pressure between the gluing roller and the paper changes, leading to uneven glue application. Some areas have excessively thick glue, wasting glue and easily causing adhesion problems in subsequent processing; others have too thin a layer of glue, failing to meet the bonding strength requirements of the packaging, greatly affecting the quality stability and reliability of the packaging.

[0004] On the other hand, packaging paper is prone to getting caught in the gluing roller, leading to frequent paper jams. On high-speed production lines, the friction between the gluing roller and the packaging paper is significant, and there is a lack of effective guidance and separation mechanisms. When the packaging paper deviates slightly or its tension is unstable during operation, it is easily caught in the gap between the gluing roller and other components, causing a paper jam. Once a paper jam occurs, not only do operators need to stop the machine for cleaning, consuming a lot of time and labor costs, but frequent shutdowns also disrupt the rhythm of the entire production line, severely reducing production efficiency. According to incomplete statistics, in some packaging companies using traditional gluing equipment, production interruptions due to paper jams can occur several times a day, directly affecting the company's capacity and economic benefits.

[0005] Furthermore, traditional gluing devices lack sufficient flexibility and adaptability when dealing with packaging paper of different specifications and materials. For some special packaging paper materials, such as smooth plastic composite paper or stiff kraft paper, existing gluing devices struggle to adjust to suitable gluing parameters, resulting in poor gluing effects. These problems make the development of a new type of packaging paper gluing device that can efficiently and evenly apply gluing, prevent packaging paper from getting caught in the gluing roller, and possess good versatility a crucial issue that urgently needs to be addressed in the industry. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a gluing device for packaging paper. To achieve the above objectives, this utility model adopts the following technical solution:

[0007] A packaging paper gluing device, comprising:

[0008] The equipment frame is provided with a platform, an equipment cavity and a glue collection tank. The equipment cavity is located below the platform and is equipped with a drive motor and a negative pressure fan. The glue collection tank is filled with glue.

[0009] The traction roller is rotatably mounted on the equipment frame and located on one side of the platform and above the glue collection trough;

[0010] The negative pressure roller is rotatably mounted on the equipment frame, arranged in parallel with the traction roller and located downstream of the traction roller. The negative pressure roller is hollow, and its outer wall is evenly provided with ventilation holes. The negative pressure roller is connected to the negative pressure fan through a connecting pipe.

[0011] The glue-applying roller is rotatably mounted on the equipment frame, located directly below the traction roller and the negative pressure roller, and the outer wall of the glue-applying roller is in contact with the glue in the glue accumulation tank;

[0012] The drive motor is connected to the traction roller, negative pressure roller and gluing roller to drive the traction roller, negative pressure roller and gluing roller to rotate in the direction of the packaging paper movement.

[0013] Furthermore, the equipment frame is equipped with an inclined scraper, one side of which abuts against the outer wall of the glue roller to scrape off the glue on the glue roller after the glue application is completed.

[0014] Furthermore, the scraper is rotatably connected to the equipment frame via a rotating shaft. A toggle spring is sleeved on the rotating shaft, with one end of the toggle spring pressing against the scraper and the other end fixed to the equipment frame. The toggle spring causes the scraper to rest against the outer wall of the glue roller.

[0015] Furthermore, the device is equipped with a pad roller rotatably mounted downstream of the upper roller, the top of which is flush with the bottom of the negative pressure roller.

[0016] Furthermore, the glue collection groove is provided with a glue inlet, which is flat in shape.

[0017] Furthermore, the drive motor is connected to the traction roller, the negative pressure roller, and the glue roller by a tapered belt, and the belts between the drive motor and the glue roller are arranged in a cross pattern.

[0018] Furthermore, the traction roller and the negative pressure roller are made of smooth stainless steel rollers.

[0019] Furthermore, the adhesive roller is a rubber roller.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The drive motor stably drives the glue-applying roller to rotate, so that the glue-applying roller can pick up the glue in the glue collection tank at a constant speed and evenly apply it to the packaging paper. This achieves uniform glue thickness on the packaging paper. Whether in the width or length direction of the packaging paper, the glue is evenly distributed, which effectively improves the bonding strength of the packaging paper, ensures the quality stability of the packaging, reduces the defect rate caused by uneven glue application, and reduces production costs.

[0022] 2. When the packaging paper comes into contact with the gluing roller during the gluing process, the negative pressure adsorption of the negative pressure roller allows the packaging paper to come out tightly against the negative pressure roller, preventing the packaging paper from being rolled into the gluing roller. This greatly reduces the frequency of paper jam failures. On high-speed production lines, the packaging paper can complete the gluing process smoothly without the need for frequent machine stops to clean paper jams, which improves production efficiency, ensures the continuity of the production line, and reduces labor costs and equipment wear and tear.

[0023] 3. Production efficiency is greatly improved, and more packaging paper can be glued in a unit of time. At the same time, the stable and uniform glue application process improves the quality of the packaging paper, making the packaging products more advantageous in appearance and performance, and enhancing the product's competitiveness in the market. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0025] Figure 1 This is a partial cross-sectional structural diagram of an embodiment of the present utility model;

[0026] Figure 2 This is a top view of an embodiment of the present invention.

[0027] In the above-mentioned attached figures: equipment frame 1, platform 11, equipment cavity 12, glue accumulation tank 13, drive motor 14, negative pressure fan 15, glue inlet 16, belt 17, traction roller 2, negative pressure roller 3, vent hole 31, connecting pipe 32, glue application roller 4, scraper 5, toggle spring 51, pad roller 6. Detailed Implementation

[0028] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0029] This utility model provides, for example Figure 1 The illustrated packaging paper gluing device includes:

[0030] The equipment frame 1 is provided with a platform 11, an equipment cavity 12 and an adhesive collection tank 13. The equipment cavity 12 is located below the platform 11. A drive motor 14 and a negative pressure fan 15 are provided in the equipment cavity 12. The adhesive collection tank 13 is filled with adhesive.

[0031] The traction roller 2 is rotatably mounted on the equipment frame 1 and located on one side of the platform 11 and above the glue collection tank 13;

[0032] The negative pressure roller 3 is rotatably mounted on the equipment frame 1, arranged in parallel with the traction roller 2 and located downstream of the traction roller 2. The negative pressure roller 3 is hollow, and its outer wall is evenly provided with ventilation holes 31. The negative pressure roller 3 is connected to the negative pressure fan 15 through the connecting pipe 32.

[0033] The glue-applying roller 4 is rotatably mounted on the equipment frame 1, located directly below the traction roller 2 and the negative pressure roller 3. The outer wall of the glue-applying roller 4 is in contact with the glue in the glue accumulation tank 13.

[0034] The drive motor 14 is connected to the traction roller 2, the negative pressure roller 3 and the gluing roller 4 to drive the traction roller 2, the negative pressure roller 3 and the gluing roller 4 to rotate in the direction of the packaging paper movement.

[0035] The working principle of the packaging paper gluing device is as follows: After the drive motor 14 starts, it drives the traction roller 2, the negative pressure roller 3, and the gluing roller 4 to rotate in the direction of the packaging paper movement. The packaging paper extends between the traction roller 2, the gluing roller 4, and the negative pressure roller 3. The outer wall of the rotating gluing roller 4 contacts the glue in the glue accumulation tank 13, thereby applying the glue to one side of the packaging paper. At the same time, the negative pressure roller 3 is hollow and has ventilation holes 31 on its outer wall. It is connected to the negative pressure fan 15 through the connecting pipe 32 to generate a negative pressure adsorption effect. This negative pressure adsorption force allows the packaging paper, which would normally stick to the gluing roller 4 during the gluing process, to stick tightly to the negative pressure roller 3, effectively preventing the packaging paper from being rolled into the gluing roller 4, thus achieving a highly efficient, stable, and uniform gluing process.

[0036] In this embodiment, as Figure 1 As shown, an inclined scraper 5 is installed on the equipment frame 1. One side of the scraper 5 abuts against the outer wall of the gluing roller 4 to scrape off the glue on the gluing roller 4 after gluing. By scraping off the glue on the gluing roller 4 with the scraper 5, the rotating gluing roller 4 can reapply glue, ensuring that each application of glue to the packaging paper is fresh, preventing the glue from drying and improving the bonding strength of the packaging paper, thus ensuring the stability of packaging quality.

[0037] In this embodiment, as Figure 1As shown, the scraper 5 is rotatably connected to the equipment frame 1 via a rotating shaft. A toggle spring 51 is sleeved on the rotating shaft. One end of the toggle spring 51 presses against the scraper 5, and the other end is fixed to the equipment frame 1. The toggle spring 51 holds the scraper 5 against the outer wall of the glue roller 4. By holding the scraper 5 tightly against the glue roller 4 via the toggle spring 51, the scraper 5 follows the outer wall of the glue roller 4 to scrape the glue, thus preventing the scraper 5 from scratching the glue roller 4.

[0038] In this embodiment, as Figure 1 , Figure 2 As shown, the device includes a pad roller 6 rotatably mounted downstream of the gluing roller 4, with the top end of the pad roller 6 flush with the bottom end of the negative pressure roller 3. The operator slides the glued packaging paper over the pad roller 6, spreading the glue evenly and preventing uneven glue thickness on the packaging paper.

[0039] In this embodiment, as Figure 1 , Figure 2 As shown, the glue collection tank 13 is provided with a glue inlet 16, which is flat. This facilitates glue application, reduces the area of ​​the glue inlet 16, and prevents the glue from drying out.

[0040] In this embodiment, as Figure 1 As shown, the drive motor 14 is connected to the traction roller 2, the negative pressure roller 3, and the glue-applying roller 4 by a tapered belt 17, and the belts 17 between the drive motor 14 and the glue-applying roller 4 are arranged in a cross pattern. This facilitates the transmission of the drive motor 14.

[0041] In this embodiment, the traction roller 2 and the negative pressure roller 3 are made of stainless steel rollers with smooth surfaces, and the adhesive roller 4 is made of rubber rollers.

[0042] 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 this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A wrapping paper gluing device characterized by comprising: The device comprises: a device frame provided with a platform, a device cavity and a glue accumulation groove, the device cavity is located below the platform, a driving motor and a negative pressure fan are arranged in the device cavity, and glue is filled in the glue accumulation groove; a traction roller rotatably arranged on the device frame and located above the glue accumulation groove and on one side of the platform; a negative pressure roller rotatably arranged on the device frame and located downstream of the traction roller, the negative pressure roller is arranged in a hollow structure, and air holes are uniformly arranged on the outer wall of the negative pressure roller, the negative pressure roller is connected with the negative pressure fan through a connecting pipe; a glue applying roller rotatably arranged on the device frame and located directly below the traction roller and the negative pressure roller, the outer wall of the glue applying roller is in contact with the glue in the glue accumulation groove; wherein the driving motor is in transmission connection with the traction roller, the negative pressure roller and the glue applying roller to drive the traction roller, the negative pressure roller and the glue applying roller to rotate along the moving direction of the packaging paper.

2. A paper gluing device according to claim 1, characterized in that: An inclined scraper is arranged on the device frame, one side of the scraper is in contact with the outer wall of the glue applying roller to scrape off the glue on the glue applying roller.

3. A paper gluing device according to claim 2, characterized in that: The scraper is rotatably connected with the device frame through a rotating shaft, a button spring is sleeved on the rotating shaft, one end of the button spring is pressed on the scraper, and the other end of the button spring is fixed on the device frame, the scraper is pressed on the outer wall of the glue applying roller through the button spring.

4. A paper gluing device according to claim 1, characterized in that: The device frame is rotatably provided with a pad roller located downstream of the glue applying roller, the top end of the pad roller is flush with the bottom end of the negative pressure roller.

5. A paper gluing device according to claim 1, characterized in that: The glue accumulation groove is provided with a glue applying opening, the glue applying opening is flat.

6. A paper gluing device according to claim 1, characterized in that: The driving motor is connected with the traction roller, the negative pressure roller and the glue applying roller through a conical belt, and the belt between the driving motor and the glue applying roller is arranged in a cross shape.

7. A paper gluing device according to claim 1, characterized in that: The traction roller and the negative pressure roller are made of a smooth stainless steel roller.

8. A paper gluing device according to claim 1, characterized in that: The glue applying roller is made of a rubber roller.

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