A metering and gluing device for papermaking

Abstract

This utility model discloses a metering and gluing device for papermaking, including a gluing roller, a gluing box, a metering rod, a glue inlet pipe, and a glue return pipe. The gluing box is located beside the gluing roller, and a glue outlet groove is opened on the side of the gluing box near the gluing roller. The metering rod is set in the glue outlet groove, and one side of the metering rod abuts against the gluing roller. The surface of the metering rod has a threaded groove. By setting the metering rod in the glue outlet groove of the gluing box, excess glue is sprayed into the glue outlet groove and moves to the sides where there is insufficient glue. It also ensures that the glue can only adhere to the threaded groove on the metering rod before being dispensed. The threaded groove also allows the glue to move axially, thereby achieving uniform distribution of glue on the metering rod and then uniform transfer to the gluing roller. This facilitates uniform gluing by the gluing roller and avoids excessive glue, which would increase the moisture content of the paper web.

Description

Technical Field

[0001] This utility model relates to the field of papermaking equipment, specifically to a metering gluing device for papermaking. Background Technology

[0002] Surface sizing is a crucial step in papermaking. It involves transferring a diluted sizing solution to the surface of the paper web, forming a starch-based coating. To ensure thorough and uniform sizing, most existing surface sizing equipment uses a saturation-type sizing process. This results in a significant amount of water entering the paper along with the sizing solution, reducing the paper's dryness and strength. When producing thin paper, this can cause paper defects such as creases, and in severe cases, paper breaks, reducing production efficiency. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a metering and gluing device for papermaking to solve the above-mentioned problems.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a metering and gluing device for papermaking, comprising a gluing roller, a gluing box, a metering rod, a glue inlet pipe, and a glue return pipe; the gluing roller, the gluing box, and the metering rod are all mounted on a gluing fixing frame, one side of the gluing roller abuts against the paper web, the gluing box is located beside the gluing roller, the gluing box has a glue outlet groove on the side near the gluing roller, the metering rod is disposed in the glue outlet groove, one side of the metering rod abuts against the gluing roller, and the surface of the metering rod has a threaded groove, the glue in the gluing box enters the threaded groove on the metering rod as the metering rod rotates, and then transfers to the gluing roller when it approaches and abuts against the gluing roller; the glue inlet pipe and the glue return pipe are respectively connected to both sides of the gluing box.

[0005] Preferably, the shape of the dispensing groove is adapted to the shape of the measuring rod.

[0006] Preferably, the glue-applying box is provided with a partition plate, which divides the glue-applying box into a glue inlet chamber and a glue return chamber; both the glue inlet chamber and the glue return chamber are connected to the glue outlet groove.

[0007] Preferably, the inlet tube is connected to the glue inlet cavity.

[0008] Preferably, the return glue chamber is connected to the return glue pipe.

[0009] Preferably, the partition plate is inclined.

[0010] Preferably, one end of the partition plate is provided with an arc-shaped groove adapted to the shape of the measuring rod, and abuts against the partition plate through the arc-shaped groove. The end of the partition plate is provided with a hinge post. The inside of the glue box is provided with an arc-shaped limiting groove corresponding to the hinge post. Both ends of the hinge post are located in the arc-shaped limiting groove. An adjusting screw is hinged on the glue box, and the end of the adjusting screw is threadedly connected to the movable end of the hinge post.

[0011] Preferably, the center of the arc-shaped limiting groove falls on the axis of the measuring rod.

[0012] The main technical advantages of this invention are as follows: By setting the measuring rod inside the glue outlet groove of the glue box, the glue in the glue box comes into contact with the rotating measuring rod, thereby causing the glue to rotate together. At the same time, excess glue is sprayed into the glue outlet groove and moves to the sides where there is insufficient glue. This also ensures that the glue can only adhere to the threaded grooves on the measuring rod before being dispensed. Furthermore, the threaded grooves also allow the glue to move axially, thus achieving uniform distribution of the glue on the measuring rod. Subsequently, the glue is evenly transferred to the glue application roller, which facilitates uniform glue application, reduces the amount of glue applied, and avoids excessive glue, which would increase the moisture content of the paper web. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present utility model;

[0014] Figure 2 This is a front sectional view of the present invention;

[0015] Figure 3 This is a cross-sectional view of the upper glue box.

[0016] The attached figures are labeled as follows: 1-Glue roller, 2-Glue box, 21-Glue outlet groove, 22-Separator plate, 221-Arc-shaped groove, 23-Glue inlet cavity, 24-Glue return cavity, 25-Hinged column, 26-Arc-shaped limiting groove, 27-Adjusting screw, 3-Metering rod, 31-Threaded groove, 4-Glue inlet pipe, 5-Glue return pipe. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered.

[0018] In this embodiment, it should be understood that the terms "middle," "upper," "lower," "top," "right side," "left end," "above," "back," "center," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and are not intended to 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 the present invention.

[0019] Furthermore, unless otherwise specified in this specific embodiment, the connection or fixing method between components can be achieved by bolt fixing, pin fixing, or pin connection commonly used in the prior art. Therefore, it will not be described in detail in this embodiment.

[0020] This utility model provides a metering and gluing device for papermaking, such as... Figure 1-3 As shown, the device includes a gluing roller 1, a gluing box 2, a metering rod 3, a glue inlet pipe 4, and a glue return pipe 5. The gluing roller 1, gluing box 2, and metering rod 3 are all mounted on a gluing fixture. One side of the gluing roller 1 abuts against the paper web. The gluing box 2 is located beside the gluing roller 1, and a glue outlet groove 21 is formed on the side of the gluing box 2 closest to the gluing roller 1. The metering rod 3 is disposed within the glue outlet groove 21. The glue inlet pipe 4 and the glue return pipe 5 are respectively connected to the two sides of the gluing box 2. One side of the metering rod 3 abuts against the gluing roller 1, and a threaded groove 31 is formed on the surface of the metering rod 3. The glue liquid in the gluing box 2 enters the metering rod 3 as it rotates. The glue in the glue box 2 is placed in the threaded groove 31 and then approaches and abuts against the glue roller 1. It is then transferred to the glue roller 1 and placed in the glue outlet groove 21 of the glue box 2 by the metering rod 3. This causes the glue in the glue box 2 to come into contact with the rotating metering rod 3, thereby causing the glue to rotate together. At the same time, excess glue is sprayed into the glue outlet groove 21 and moves to the sides where there is insufficient glue. This also ensures that the glue can only be dispensed by adhering to the threaded groove 31 on the metering rod 3. The threaded groove 31 also allows the glue to move axially, thereby achieving uniform distribution of the glue on the metering rod 3 and then uniform transfer to the glue roller 1. This facilitates uniform glue application by the glue roller 1 and avoids excessive glue, which would increase the moisture content of the paper web.

[0021] Preferably, the shape of the dispensing groove 21 is adapted to the shape of the metering rod 3, and the glue is directly discharged from the gap between the metering rod 3 and the dispensing groove 21, resulting in uneven glue distribution.

[0022] Preferably, the glue-applying box 2 is provided with a partition plate 22, which divides the glue-applying box 2 into a glue inlet chamber 23 and a glue return chamber 24. Both the glue inlet chamber 23 and the glue return chamber 24 are connected to the glue outlet trough 21, so that the glue from the glue inlet tube 4 enters the glue inlet chamber 23 of the glue-applying box 2 and moves directly toward the measuring rod 3, which facilitates less adjustment time. Preferably, the glue inlet tube is connected to the glue inlet chamber 23. Preferably, the glue return chamber 24 is connected to the glue return tube 5.

[0023] Preferably, the partition plate 22 is inclined to facilitate the flow of adhesive liquid from the glue inlet cavity 23 to the metering rod 3.

[0024] Preferably, one end of the partition plate 22 is provided with an arc-shaped groove 221 adapted to the shape of the measuring rod 3, and abuts against the partition plate 22 through the arc-shaped groove 221. The end of the partition plate 22 is provided with a hinge post 25. The inside of the glue box 2 is provided with an arc-shaped limiting groove 26 corresponding to the hinge post 25. Both ends of the hinge post 25 are located in the arc-shaped limiting groove 26. An adjusting screw 27 is hinged on the glue box 2. The end of the adjusting screw 27 is threadedly connected to the movable end of the hinge post 25. By rotating the adjusting screw 27, the tilt angle of the partition plate 22 can be adjusted, thereby fine-tuning the glue feeding amount of the measuring rod 3. Preferably, the center of the arc-shaped limiting groove 26 falls on the axis of the measuring rod 3, so that the partition plate 22 rotates around the axis of the measuring rod 3.

[0025] The main technical advantages of this invention are as follows: By setting the measuring rod inside the glue outlet groove of the glue box, the glue in the glue box comes into contact with the rotating measuring rod, thereby causing the glue to rotate together. At the same time, excess glue is sprayed into the glue outlet groove and moves to the sides where there is insufficient glue. This also ensures that the glue can only adhere to the threaded grooves on the measuring rod before being dispensed. Furthermore, the threaded grooves also allow the glue to move axially, thus achieving uniform distribution of the glue on the measuring rod. Subsequently, the glue is evenly transferred to the glue application roller, which facilitates uniform glue application, reduces the amount of glue applied, and avoids excessive glue, which would increase the moisture content of the paper web.

[0026] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. A metering sizing device for papermaking, characterized by The device includes a gluing roller, a gluing box, a metering rod, a glue inlet pipe, and a glue return pipe. The gluing roller, gluing box, and metering rod are all mounted on a gluing fixture. One side of the gluing roller abuts against the paper web. The gluing box is located beside the gluing roller, and a glue outlet groove is formed on the side of the gluing box near the gluing roller. The metering rod is positioned within the glue outlet groove, and one side of the metering rod abuts against the gluing roller. A threaded groove is formed on the surface of the metering rod. The glue in the gluing box enters the threaded groove on the metering rod as it rotates, and then transfers to the gluing roller as it approaches and abuts against it. The glue inlet pipe and the glue return pipe are respectively connected to both sides of the gluing box.

2. A metering sizing device for papermaking as claimed in claim 1, characterized in that, The shape of the dispensing groove is adapted to the shape of the measuring rod.

3. A metering sizing device for papermaking as defined in claim 1, characterized in that The glue-applying box is provided with a partition plate, which divides the glue-applying box into a glue inlet chamber and a glue return chamber; both the glue inlet chamber and the glue return chamber are connected to the glue outlet trough.

4. A metering sizing device for papermaking as defined in claim 3, characterized in that The inlet tube is connected to the glue inlet cavity.

5. A metering sizing device for papermaking as defined in claim 3, wherein, The return glue chamber is connected to the return glue pipe.

6. A metering sizing device for papermaking as defined in claim 3, wherein, The partition is set at an angle.

7. A metering sizing device for papermaking as defined in claim 3, wherein, One end of the partition plate is provided with an arc-shaped groove adapted to the shape of the measuring rod, and abuts against the partition plate through the arc-shaped groove. The end of the partition plate is provided with a hinge post. The inside of the glue box is provided with an arc-shaped limiting groove corresponding to the hinge post. Both ends of the hinge post are located in the arc-shaped limiting groove. An adjusting screw is hinged on the glue box, and the end of the adjusting screw is threadedly connected to the movable end of the hinge post.

8. A metering sizing device for papermaking as defined in claim 7, characterized in that The center of the arc-shaped limiting groove falls on the axis of the measuring rod.

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