Stable sizing applicator for corrugators

By designing glue spraying and spreading mechanisms on the corrugating machine, the problem of uneven glue distribution on the glue coating roller was solved, achieving uniform glue coating of corrugated paper and improving the glue coating quality.

CN224525120UActive Publication Date: 2026-07-21BAODING INT PAPER PACKAGING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BAODING INT PAPER PACKAGING CO LTD
Filing Date
2025-07-21
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The existing corrugating machine's glue coating device lacks a structure for uniformly applying glue, resulting in uneven glue distribution on the outer wall of the glue coating roller, which affects the glue coating quality of the corrugated paper.

Method used

A stable sizing applicator was designed, which includes a glue spraying mechanism and a glue spreading mechanism. The glue spraying mechanism sprays glue onto the outer wall of the coating roller, and the glue spreading mechanism adjusts the distance between the glue spreading plate and the coating roller to achieve uniform glue application.

Benefits of technology

This method achieves uniform application of adhesive to the outer wall of the coating roller, improving the coating quality and overall coating effect of corrugated paper.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to corrugated paper production technical field, concretely is the stable sizing applicator of corrugated machine, including work board, the bottom of work board is fixed with a plurality of support column, the top surface of work board installs transmission machine, the top surface of work board is fixed with two respectively located transmission machine front and rear both sides' riser near left end department, the rotatable connection of two riser has the rotating roller located transmission machine top, the utility model discloses through the setting of glue spraying mechanism, glue spreading motor and rotating roller to can glue water spray on the circumference outer wall of glue spreading roller, through the design of glue spreading mechanism can adjust the distance between the glue spreading plate and glue spreading roller, can according to the thickness of glue water on the outer wall of glue spreading roller and the thickness of the required glue water coating to carry out the distance adjusting work, can the glue water on the outer wall of glue spreading roller is smeared evenly, can then glue water evenly is coated on the surface of corrugated paper, makes the glue spreading effect of whole device better.
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Description

Technical Field

[0001] This utility model relates to the field of corrugated paper production technology, specifically to a stable sizing and coating device for a corrugating machine. Background Technology

[0002] Corrugated cardboard is a sheet-like material made by bonding face paper and corrugated core paper. It is inexpensive to manufacture, lightweight but strong, easy to process and has good printability. The corrugating machine is one of the important pieces of equipment in the corrugated box production line, and the coating unit is an indispensable part of the corrugating machine.

[0003] Patent CN220447358U discloses a gluing device for a fully automatic corrugated paper mounting machine, including a frame with a conveying mechanism inside. A housing is fixedly installed on the top of the frame, and an adjusting plate is slidably installed inside the housing. A U-shaped plate is fixedly installed on the top of the adjusting plate. Glue-applying rollers are rotatably installed on the inner walls of both sides of the U-shaped plate. A motor is fixedly installed on one side of the U-shaped plate, and the output shaft of the motor is fixedly connected to the glue-applying rollers. Two rotating seats are rotatably installed on the inner wall of the top of the housing. The bottom of the rotating seats has a threaded groove, and an adjusting screw is threaded into the threaded groove. The bottom end of the adjusting screw is fixedly installed on the adjusting plate. A control box is fixedly installed on the top of the housing, and the tops of the multiple rotating seats extend into the control box.

[0004] Although the device is reasonably designed and can achieve the purpose of applying glue to corrugated paper of different thicknesses by adjusting the glue roller in the vertical direction, the device does not have a structure to evenly spread the glue on the outer wall of the glue roller. Uneven distribution of glue on the outer wall of the glue roller will affect the glue coating quality of the corrugated paper. Utility Model Content

[0005] The purpose of this invention is to provide a stable sizing coater for corrugating machines, in order to solve the problem that the device proposed in the background art does not have a structure to evenly spread the glue on the outer wall of the coating roller, and the uneven distribution of glue on the outer wall of the coating roller will affect the coating quality of corrugated paper.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A stable sizing applicator for a corrugated board machine includes a working plate with several support columns fixed to its bottom end. A conveyor is mounted on the top surface of the working plate. Two upright plates, located on the front and rear sides of the conveyor respectively, are fixed near the left end of the top surface of the working plate. A rotating roller located above the conveyor is rotatably connected between the two upright plates. A glue-applying roller is coaxially fixed on the outer circumference of the rotating roller. A glue-applying motor with an output shaft coaxially connected to the rotating roller is mounted on the surface of one of the upright plates away from the glue-applying roller. A glue-spraying mechanism for spraying glue onto the glue-applying roller is provided between the two upright plates. The device also includes:

[0008] The glue spreading mechanism, located on the top surface of the work plate near the right end, is used to evenly spread the glue on the outer circumference of the glue-applying roller. The glue spreading mechanism includes a frame fixed on the top surface of the work plate and located behind the conveyor; two rotating columns rotatably connected to the two vertical plate ends of the frame; a screw fixed coaxially between the two rotating columns; a rotating rod coaxially fixed on the surface of one of the rotating columns away from the screw; two gears located above the work plate and used to drive the rotating rod to rotate; a glue spreading motor installed on the surface of one of the vertical plate ends of the frame away from the screw and used to drive the two gears to rotate; a movable plate slidably connected to the bottom surface of the horizontal plate end of the frame and threadedly connected to the screw; and an L-shaped connecting rod fixed to the bottom surface of the movable plate. The left side surface of the horizontal end of the connecting rod is fixed with a glue spreading plate for spreading the glue on the outer circumference of the glue-applying roller.

[0009] In a preferred embodiment, the adhesive spreading mechanism further includes a rotating shaft coaxially connected to the output shaft of the adhesive spreading motor, and the two gears are respectively coaxially fixed on the outer circumferential walls of the rotating shaft and the rotating rod.

[0010] In a preferred embodiment, a guide groove is provided on the bottom surface of the horizontal plate of the frame, and a guide block is fixed on the top surface of the movable plate and slidably connected to the guide groove on the bottom surface of the horizontal plate of the frame.

[0011] In a preferred embodiment, the glue spraying mechanism includes a glue box fixed between two vertical plates and located above the glue coating roller, a pump body installed on the top surface of the work plate, and a glue inlet pipe tightly connected to the feed end of the pump body. The discharge end of the pump body is tightly connected to a glue inlet pipe that communicates with the inner cavity of the glue box. Several glue spraying nozzles that communicate with the inner cavity of the glue box and are located above the glue coating roller are fixed at the bottom of the glue box.

[0012] In a preferred embodiment, a support plate is fixed to the bottom end of the support column, and an anti-slip plate adapted to the shape of the support plate is fixed to the bottom end of the support plate, and the thickness of the anti-slip plate is 3-7cm.

[0013] In a preferred embodiment, a motor box is fixed to the surface of one of the vertical plates away from the glue-applying roller, and the glue-applying motor is located inside the motor box. The glue-applying mechanism also includes a protective box fixed to the surface of one of the vertical plates of the frame away from the screw, the glue-applying motor is located inside the protective box, and the rotating shaft passes through the outer wall of the protective box away from the screw.

[0014] In a preferred embodiment, the longitudinal cross-sectional shape of the guide groove on the bottom surface of the frame horizontal plate is I-shaped, and the shape of the guide block is I-shaped to match the shape of the guide groove on the bottom surface of the frame horizontal plate.

[0015] In a preferred embodiment, the glue-applying roller is positioned and sized to correspond with a plurality of glue-spraying nozzles, and the glue-laying plate is positioned and sized to correspond with the glue-applying roller.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model tightly connects the supply pipe and the glue inlet pipe of the external glue supply device. Through the setting of the glue spraying mechanism, glue coating motor and rotating roller, the glue can be sprayed onto the outer circumference of the coating roller. The design of the glue spreading mechanism can adjust the distance between the glue spreading plate and the coating roller. The distance can be adjusted according to the thickness of the glue on the outer wall of the coating roller and the required thickness of the glue coating. This allows the glue on the outer wall of the coating roller to be spread evenly, and then the glue can be evenly coated on the surface of the corrugated paper, making the glue coating effect of the entire device better.

[0018] 2. In this utility model, a guide groove is provided on the bottom surface of the horizontal plate of the frame, and a guide block is fixed on the top surface of the moving plate and slidably connected to the guide groove on the bottom surface of the horizontal plate of the frame. This can guide the movement of the moving plate, and thus guide the movement of the rubber sheet. Attached Figure Description

[0019] Figure 1 This is one of the overall structural schematic diagrams of this utility model;

[0020] Figure 2 This is the second schematic diagram of the overall structure of this utility model;

[0021] Figure 3 This is the third schematic diagram of the overall structure of this utility model;

[0022] Figure 4 This is a partial exploded view of the present invention;

[0023] Figure 5 This is a schematic diagram of the overall structure of the glue spraying mechanism in this utility model;

[0024] Figure 6 This is an enlarged view of point A in this utility model;

[0025] Figure 7 This is a schematic diagram of the overall structure of the adhesive spreading mechanism in this utility model;

[0026] Figure 8 This is one of the exploded views of the adhesive spreading mechanism in this utility model;

[0027] Figure 9 This is the second partial exploded view of the adhesive spreading mechanism in this utility model.

[0028] The meanings of the labels in the diagram are as follows:

[0029] 1. Working plate; 2. Conveyor; 3. Vertical plate; 4. Rotary roller; 5. Glue roller; 6. Glue spraying mechanism; 61. Glue box; 62. Pump body; 63. Glue inlet pipe; 64. Glue pipe; 65. Glue spraying nozzle; 7. Glue spreading mechanism; 71. Frame; 72. Rotating column; 73. Screw; 74. Moving plate; 75. Connecting rod; 76. Glue spreading plate; 77. Guide block; 78. Rotating rod; 79. Gear; 710. Glue spreading motor; 711. Rotating shaft; 712. Protective box; 8. Glue spraying motor; 9. Motor box; 10. Support column; 11. Support plate; 12. Anti-slip plate. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figures 1-9 This utility model provides a technical solution: a stable sizing coater for a corrugated machine, including a working plate 1, several support columns 10 fixed at the bottom of the working plate 1, a conveyor 2 mounted on the top surface of the working plate 1, two upright plates 3 fixed near the left end of the top surface of the working plate 1 respectively on the front and rear sides of the conveyor 2, a rotating roller 4 located above the conveyor 2 rotatably connected between the two upright plates 3, a glue-applying roller 5 coaxially fixed on the outer circumference of the rotating roller 4, a glue-applying motor 8 with an output shaft coaxially connected to the rotating roller 4 mounted on the surface of one of the upright plates 3 away from the glue-applying roller 5, and a glue-applying mechanism 6 for spraying glue onto the glue-applying roller 5 provided between the two upright plates 3, and further including:

[0032] The glue spreading mechanism 7, located on the top surface of the work plate 1 near the right end, is used to evenly spread the glue on the outer circumference of the glue roller 5. The glue spreading mechanism 7 includes a frame 71 fixed on the top surface of the work plate 1 and located behind the conveyor 2; two rotating columns 72 rotatably connected to the two vertical ends of the frame 71; a screw 73 coaxially fixed between the two rotating columns 72; a rotating rod 78 coaxially fixed to the surface of one of the rotating columns 72 away from the screw 73; two gears 79 located above the work plate 1 and used to drive the rotating rod 78 to rotate; a glue spreading motor 710 installed on the surface of one of the vertical ends of the frame 71 away from the screw 73 and used to drive the two gears 79 to rotate; and a screw 78 slidably connected to the bottom surface of the horizontal end of the frame 71 and screwed to the screw 73. The device consists of a movable plate 74 with a textured surface, a connecting rod 75 fixed to the bottom surface of the movable plate 74 in an L-shape, and a glue-spreading plate 76 fixed to the left side of the crossbar end of the connecting rod 75 for applying glue to the outer circumference of the coating roller 5. Through the setting of the glue spraying mechanism 6, the glue application motor 8 and the rotating roller 4, the glue can be sprayed onto the outer circumference of the coating roller 5. The design of the glue-spreading mechanism 7 can adjust the distance between the glue-spreading plate 76 and the coating roller 5, so as to adjust the distance according to the thickness of the glue on the outer wall of the coating roller 5 and the required thickness of the glue application, thereby making the glue on the outer wall of the coating roller 5 evenly spread, and then evenly coating the surface of the corrugated paper, so as to improve the glue application effect of the entire device.

[0033] In this embodiment, the adhesive spreading mechanism 7 also includes a rotating shaft 711 coaxially connected to the output shaft of the adhesive spreading motor 710, and two gears 79 are coaxially fixed on the outer circumferential walls of the rotating shaft 711 and the rotating rod 78, respectively, which can smoothly drive the two gears 79 to rotate, and thus smoothly drive the screw 73 to rotate.

[0034] In addition, a guide groove is provided on the bottom surface of the horizontal plate end of the frame 71, and a guide block 77 is fixed on the top surface of the movable plate 74 and slidably connected to the guide groove on the bottom surface of the horizontal plate end of the frame 71. This can guide the movement of the movable plate 74, and thus guide the movement of the adhesive sheet 76.

[0035] Furthermore, the glue spraying mechanism 6 includes a glue box 61 fixed between two vertical plates 3 and located above the glue coating roller 5, a pump body 62 installed on the top surface of the working plate 1, and a glue inlet pipe 63 tightly connected to the feed end of the pump body 62. The discharge end of the pump body 62 is tightly connected to a glue inlet pipe 64 that communicates with the inner cavity of the glue box 61. Several glue spraying nozzles 65 that communicate with the inner cavity of the glue box 61 and are located above the glue coating roller 5 are fixed at the bottom end of the glue box 61. The supply pipe of the external glue supply device is tightly connected to the glue inlet pipe 63. Through the arrangement of the glue spraying mechanism 6, the glue coating motor 8 and the rotating roller 4, the glue can be sprayed onto the outer circumference of the glue coating roller 5.

[0036] Specifically, a support plate 11 is fixed to the bottom of the support column 10, and an anti-slip plate 12 that matches the shape of the support plate 11 is fixed to the bottom of the support plate 11, and the thickness of the anti-slip plate 12 is 3-7cm.

[0037] It is worth noting that a motor box 9 is fixed on the side of one of the vertical plates 3 away from the glue-applying roller 5. The glue-applying motor 8 is located inside the motor box 9. The glue-laying mechanism 7 also includes a protective box 712 fixed on the side of one of the vertical plates of the frame 71 away from the screw 73. The glue-laying motor 710 is located inside the protective box 712, and the rotating shaft 711 passes through the outer wall of the protective box 712 away from the screw 73. This can protect the glue-laying motor 710 and the glue-applying motor 8, thereby extending the service life of the glue-applying motor 8 and the glue-laying motor 710.

[0038] It is worth noting that the longitudinal section of the guide groove on the bottom surface of the horizontal plate of the frame 71 is I-shaped, and the shape of the guide block 77 is I-shaped to match the shape of the guide groove on the bottom surface of the horizontal plate of the frame 71. This makes the connection between the guide block 77 and the guide groove on the bottom surface of the horizontal plate of the frame 71 tighter, thereby indirectly making the rubber sheet 76 more stable during movement.

[0039] It is worth emphasizing that the positions of the glue-applying roller 5 and the several glue-spraying nozzles 65 are corresponding and their sizes are compatible, and the positions of the glue-laying plate 76 and the glue-applying roller 5 are corresponding and their sizes are compatible. This allows the several glue-spraying nozzles 65 to smoothly spray glue onto the outer circumference of the glue-applying roller 5, and allows the glue-laying plate 76 to smoothly spread the glue evenly on the outer wall of the glue-applying roller 5.

[0040] Finally, it should be noted that the components involved in this utility model, such as the conveyor 2, the glue-spreading motor 710, the glue-applying motor 8, and the pump body 62, are all general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the matching controller and power supply, are connected by wires. The specific connection methods should refer to the working principle of this utility model. The electrical connections between each electrical component are completed in the order of operation. The detailed connection methods are all technologies known in the art.

[0041] In this embodiment, when it is necessary to apply glue to corrugated paper, the supply pipe of the external glue supply device is first tightly connected to the glue inlet pipe 63. Then, the glue application motor 8 and the pump body 62 are started by the external PLC. After the pump body 62 is started, the glue in the external glue supply device can be transported from its supply pipe to the glue passage pipe 64. The glue that enters the glue passage pipe 64 then enters the glue passage box 61. The glue that enters the glue passage box 61 then enters several glue spray nozzles 65 and is sprayed out. At the same time, the output shaft of the glue application motor 8 rotates, which drives the rotating roller 4 connected to it to rotate. The rotating roller 4 rotates, which drives the glue application roller 5 fixed to it to rotate, so that the glue can be sprayed on the outer circumference of the glue application roller 5. After spraying for a period of time, the pump body 62 is turned off by the external PLC.

[0042] Next, the adhesive spreading motor 710 is started via an external PLC. The output shaft of the adhesive spreading motor 710 rotates, driving the rotating shaft 711, which is coaxially connected to it, to rotate. The rotating shaft 711 rotates, driving the gear 79, which is coaxially fixed on the same side, to rotate. This gear 79 rotates, driving another gear 79 meshing with it to rotate. This other gear 79 rotates, driving the rotating column 72, which is coaxially fixed on the same side, to rotate. The rotating column 72 rotates, driving the screw 73, which is coaxially fixed to it, to rotate. The screw 73 rotates, driving the moving plate 74, which is threadedly connected to it, to move to the left. The moving plate 74 moves under the guidance of the guide block 77 and the guide groove on the bottom surface of the horizontal plate end of the frame 71. The movement of 74 drives the movement of the connecting rod 75 fixed thereto, and the movement of the connecting rod 75 drives the movement of the glue spreading plate 76 fixed thereto. When the distance between the glue spreading plate 76 and the glue coating roller 5 is appropriate, the glue spreading motor 710 is turned off by the external PLC. At this time, the glue coating roller 5 rotates so that the glue spreading plate 76 can apply glue to its outer wall. After applying for a period of time, the output shaft of the glue spreading motor 710 is started and controlled to reverse through the external PLC. As mentioned above, the reverse rotation of the output shaft of the glue spreading motor 710 can drive the glue spreading plate 76 to move to the right. When the glue spreading plate 76 moves to the initial position, the glue spreading motor 710 is turned off by the external PLC.

[0043] Then, the external PLC starts the conveyor 2, and the corrugated paper that needs to be coated with glue is placed on the top surface of the conveyor belt of the conveyor 2 near the left end. The corrugated paper moves to the right under the transmission of the conveyor 2. When the corrugated paper passes the rotating glue roller 5, it can be coated with glue.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A stable sizing applicator for a corrugated board machine, comprising a working plate (1), characterized in that, The bottom end of the working plate (1) is fixed with several support columns (10). A conveyor (2) is installed on the top surface of the working plate (1). Two upright plates (3) are fixed near the left end of the top surface of the working plate (1), located on the front and rear sides of the conveyor (2). A rotating roller (4) located above the conveyor (2) is rotatably connected between the two upright plates (3). A glue-applying roller (5) is coaxially fixed on the outer circumference of the rotating roller (4). A glue-applying motor (8) with an output shaft coaxially connected to the rotating roller (4) is installed on the surface of one of the upright plates (3) away from the glue-applying roller (5). A glue-applying mechanism (6) for spraying glue onto the glue-applying roller (5) is provided between the two upright plates (3). The working plate (1) also includes: The glue spreading mechanism (7) is located on the top surface of the work plate (1) near the right end. It is used to spread the glue evenly on the outer wall of the glue roller (5). The glue spreading mechanism (7) includes a frame (71) fixed on the top surface of the work plate (1) and located behind the conveyor (2), two rotating columns (72) rotatably connected to the two vertical plate ends of the frame (71), a screw (73) coaxially fixed between the two rotating columns (72), a rotating rod (78) coaxially fixed on the surface of one of the rotating columns (72) away from the screw (73), and a rotating rod (78) located above the work plate (1) for driving the rotating rod. (78) Two rotating gears (79), a glue-spreading motor (710) installed on the side of one of the vertical plates of the frame (71) away from the screw (73) and used to drive the two gears (79) to rotate, a movable plate (74) slidably connected to the bottom surface of the horizontal plate of the frame (71) and threadedly connected to the screw (73), a connecting rod (75) fixed on the bottom surface of the movable plate (74) and in the shape of an L, and a glue-spreading plate (76) fixed on the left side surface of the horizontal end of the connecting rod (75) for applying glue to the outer circumference of the glue-spreading roller (5).

2. The stable sizing coater for a corrugated machine according to claim 1, characterized in that: The adhesive spreading mechanism (7) also includes a rotating shaft (711) coaxially connected to the output shaft of the adhesive spreading motor (710), and the two gears (79) are respectively coaxially fixed on the outer circumference of the rotating shaft (711) and the rotating rod (78).

3. The stable sizing coater for a corrugated machine according to claim 1, characterized in that: The bottom surface of the horizontal plate of the frame (71) is provided with a guide groove, and the top surface of the movable plate (74) is fixed with a guide block (77) that is slidably connected to the guide groove on the bottom surface of the horizontal plate of the frame (71).

4. The stable sizing coater for a corrugated machine according to claim 1, characterized in that: The glue spraying mechanism (6) includes a glue box (61) fixed between two vertical plates (3) and above the glue coating roller (5), a pump body (62) installed on the top surface of the working plate (1), and a glue inlet pipe (63) tightly connected to the feed end of the pump body (62). The discharge end of the pump body (62) is tightly connected to a glue inlet pipe (64) that communicates with the inner cavity of the glue box (61). Several glue spraying nozzles (65) that communicate with the inner cavity of the glue box (61) and are located above the glue coating roller (5) are fixed at the bottom of the glue box (61).

5. The stable sizing coater for a corrugated machine according to claim 1, characterized in that: The support column (10) is fixed with a support plate (11) at its bottom end. The support plate (11) is fixed with an anti-slip plate (12) that matches its shape at its bottom end. The thickness of the anti-slip plate (12) is 3-7cm.

6. The stable sizing coater for a corrugated machine according to claim 2, characterized in that: A motor box (9) is fixed to the side surface of one of the vertical plates (3) away from the glue roller (5). The glue-applying motor (8) is located inside the motor box (9). The glue-laying mechanism (7) also includes a protective box (712) fixed to the side surface of one of the vertical plates of the frame (71) away from the screw (73). The glue-laying motor (710) is located inside the protective box (712), and the rotating shaft (711) passes through the outer wall of the protective box (712) away from the screw (73).

7. The stable sizing coater for a corrugated machine according to claim 3, characterized in that: The longitudinal cross-sectional shape of the guide groove on the bottom surface of the horizontal plate of the frame (71) is I-shaped, and the shape of the guide block (77) is I-shaped to match the shape of the guide groove on the bottom surface of the horizontal plate of the frame (71).

8. The stable sizing coater for a corrugated machine according to claim 4, characterized in that: The glue-applying roller (5) is positioned and matched with several glue-spraying nozzles (65), and the glue-laying plate (76) is positioned and matched with the glue-applying roller (5).