Anti-glue-overflow accurate gluing structure for corners of folded paperboard

Abstract

The utility model relates to the technical field of folding paperboard gluing, in particular to an anti-glue-overflow accurate folding paperboard corner gluing structure which comprises a folding paperboard corner gluing structure body and a folding paperboard conveying roller, an upper fixing plate is arranged at the upper end of the folding paperboard corner gluing structure body, and a lower fixing plate is arranged at the lower end of the folding paperboard corner gluing structure body. A limiting groove of a circular structure is formed in the lower end face of the upper fixing plate, an angle adjusting motor is installed at the circle center of the limiting groove in the upper end face of the upper fixing plate, a linear adjusting mechanism is clamped to the inner side of the limiting groove, and the middle of the upper end face of the linear adjusting mechanism is connected with the output end of the angle adjusting motor through a coupler. According to the glue-overflowing-preventing accurate gluing structure for the corners of the folded paperboard, the glue discharging barrel controls the glue discharging amount through rotation of the spiral discharging device, glue is flattened in cooperation with the glue rolling wheel, redundant glue on the glue rolling wheel is removed through the glue scraping block, the situation that the glue is too much can be effectively avoided, and then the glue overflowing problem is prevented; and the production efficiency of folded paperboards is improved.

Description

Technical Field

[0001] This utility model relates to the field of folding cardboard coating technology, specifically a precision coating structure for the corners of folding cardboard that prevents glue spillage. Background Technology

[0002] Folding cardboard is typically composed of multiple layers of paper that can be folded into various shapes and structures through specific designs. Due to its lightweight, cost-effectiveness, and ease of processing, it is widely used in packaging, model making, and other fields that require structural support.

[0003] In the current processing of folding cardboard, glue is used to bond and fix the joints to ensure structural strength. The corners of the folding cardboard require precise control of the glue thickness and the glue application area. Currently, when applying glue to the corners of folding cardboard, the small size of the corners results in a small application area, which leads to inaccurate glue application and excessive glue application, causing glue overflow. Utility Model Content

[0004] The purpose of this utility model is to provide a precise glue coating structure for the corners of folded cardboard that prevents glue overflow, in order to solve the problem mentioned in the background art that the corners of folded cardboard on the market are small in size, resulting in an inaccurate glue coating position, excessive glue application, and glue overflow.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a precision glue coating structure for the corners of folded cardboard that prevents glue spillage, comprising a main body for the corner coating structure of folded cardboard and a conveying roller for folded cardboard. The main body for the corner coating structure of folded cardboard has an upper fixed plate at its upper end, and a circular limiting groove is formed on the lower end face of the upper fixed plate. An angle adjustment motor is installed at the center of the limiting groove on the upper end face of the upper fixed plate. A linear adjustment mechanism is engaged inside the limiting groove, and the middle part of the upper end face of the linear adjustment mechanism is connected to the output end of the angle adjustment motor through a coupling, allowing the linear adjustment mechanism to rotate. The linear adjustment mechanism is movably connected to a lifting hydraulic cylinder through a screw structure, and a fixed plate is connected to the movable end of the lifting hydraulic cylinder. An installation box is engaged at the bottom of the fixed plate. A fixed cover is connected below the installation box, and a glue roller is rotatably engaged inside the fixed cover. Glue grooves are symmetrically formed on the outer circumference of the glue roller. A glue dispensing cylinder also runs through the installation box, and a glue dispensing nozzle is integrally formed below the glue dispensing cylinder, with the bottom surface of the glue dispensing nozzle higher than the bottom surface of the glue roller.

[0006] Preferably, the bottom side of the upper fixing plate is fixed with a support plate by welding, and the support plate is bolted to the frame at both ends of the folding cardboard conveying roller.

[0007] Preferably, the upper end of the glue dispensing cylinder is sealed and snapped into the mounting box with a glue inlet seat, and the glue inlet seat is sealed and connected to a glue delivery pipe on its side. A screw feeder is rotatably installed in both the glue dispensing cylinder and the glue inlet seat.

[0008] Preferably, a glue dispensing control motor is installed on the other side of the upper end of the fixed plate, and the output end of the glue dispensing control motor is connected to a pulley transmission mechanism, and the pulley transmission mechanism is engaged with the screw feeder through a gear structure.

[0009] Preferably, the side of the fixing cover away from the glue dispensing cylinder has an outwardly protruding structure, and the protruding part of the fixing cover has a glue scraper block engaged with it, and the glue scraper block contacts and cooperates with the outer ring of the glue roller.

[0010] Preferably, both the roller and the dispensing cylinder are located directly below the linear adjustment mechanism, and the rolling direction of the roller is the same as the linear adjustment direction of the linear adjustment mechanism.

[0011] Compared with existing technologies, the beneficial effects of this utility model are as follows: The precise glue application structure at the corner of the folding cardboard prevents glue overflow. The glue dispensing cylinder controls the glue dispensing amount through the rotation of the screw feeder, and the glue roller smooths the glue. Excess glue on the roller is removed by a scraper, effectively preventing excessive glue application and thus preventing glue overflow, thereby improving the production efficiency of folding cardboard. This precise glue application structure at the corner of the folding cardboard allows the glue dispensing cylinder and the glue roller to move synchronously in a straight line. The glue roller passes through the moving area of ​​the glue dispensing cylinder, achieving smoothing after glue application. Furthermore, the structure used for positioning the glue roller and the glue dispensing cylinder can rotate, allowing for different glue application angles to meet different needs, effectively improving the accuracy of the glue application position on the folding cardboard. Attached Figure Description

[0012] Figure 1 This is a side view of a folded cardboard corner precision glue application structure for preventing glue spillage, according to this utility model.

[0013] Figure 2 A schematic diagram of the glue groove structure on the side of the roller for a precise glue application structure at the corner of a folded cardboard that prevents glue spillage, according to this utility model.

[0014] Figure 3 This is a schematic diagram of the linear adjustment mechanism for the precise glue application structure at the corner of a folded cardboard folding plate, which is designed to prevent glue spillage, relative to the position of the upper fixed plate.

[0015] In the diagram: 1. Main body of the corner gluing structure for folded cardboard; 2. Upper fixing plate; 201. Limiting groove; 202. Support plate; 3. Angle adjustment motor; 4. Linear adjustment mechanism; 5. Lifting hydraulic cylinder; 6. Glue dispensing cylinder; 601. Glue dispensing nozzle; 602. Screw feeder; 603. Glue conveying pipe; 604. Glue feed seat; 7. Folded cardboard conveying roller; 8. Glue dispensing control motor; 801. Belt drive mechanism; 9. Fixing plate; 10. Mounting box; 11. Fixing cover; 1101. Glue scraper block; 12. Glue rolling wheel; 1201. Glue tank. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0017] Please see Figure 1-3This utility model provides a technical solution: a precision glue coating structure for the corners of folded cardboard that prevents glue spillage. The structure includes a main body 1 for corner glue coating and a conveying roller 7. The main body 1 has an upper fixing plate 2 at its upper end, and a circular limiting groove 201 is formed on the lower surface of the upper fixing plate 2. An angle adjustment motor 3 is installed at the center of the limiting groove 201 on the upper surface of the upper fixing plate 2. A support plate 202 is welded to the bottom side of the upper fixing plate 2 and bolted to the frames at both ends of the conveying roller 7. This structure allows the corners of the folded cardboard to be conveyed below the main body 1 of the corner glue coating structure when the cardboard is conveyed by the conveying roller 7, ensuring the corners of the cardboard are properly coated. The corner gluing structure 1 is capable of gluing the corners of folded cardboard. A linear adjustment mechanism 4 is engaged inside the limiting groove 201, and the middle part of the upper surface of the linear adjustment mechanism 4 is connected to the output end of the angle adjustment motor 3 via a coupling, allowing the linear adjustment mechanism 4 to rotate. The linear adjustment mechanism 4 is movably connected to a lifting hydraulic cylinder 5 via a screw structure, and a fixed plate 9 is connected to the movable end of the lifting hydraulic cylinder 5. A mounting box 10 is engaged at the bottom of the fixed plate 9. A glue dispensing control motor 8 is installed on the other side of the upper end of the fixed plate 9, and a pulley transmission mechanism 801 is connected to the output end of the glue dispensing control motor 8. The pulley transmission mechanism 801 and the screw conveyor 602 are engaged via a gear structure. This structure allows the screw conveyor to be controlled by the glue dispensing control motor 8. The 602 screw feeder rotates to extrude glue, achieving glue application. The small glue extrusion area effectively prevents excessive glue application during subsequent application and allows for precise control of the application area. A fixing cover 11 is connected to the bottom of the mounting box 10, and a glue roller 12 is rotatably engaged within the fixing cover 11. Glue grooves 1201 are symmetrically formed on the outer circumference of the glue roller 12. A protruding structure is engaged on the side of the fixing cover 11 away from the glue dispensing cylinder 6, and a scraper block 1101 engages with the protruding part of the fixing cover 11. The scraper block 1101 contacts and cooperates with the outer ring of the glue roller 12. This structure allows excess glue on the glue roller 12 to be scraped away by the scraper block 1101 during rotation, preventing... Excess glue may overflow, and the outward protrusion of the fixing cover 11 is removable for easy cleaning. A glue dispensing cylinder 6 runs through the mounting box 10, with a glue dispensing nozzle 601 integrated below it. Both the glue roller 12 and the glue dispensing cylinder 6 are located directly below the linear adjustment mechanism 4, and the rolling direction of the glue roller 12 is the same as the linear adjustment direction of the linear adjustment mechanism 4. This structure allows the linear adjustment mechanism 4 to drive the glue roller 12 and the glue dispensing cylinder 6 to move synchronously via the lifting hydraulic cylinder 5. When the glue roller 12 moves, it can roll by contacting the folded cardboard, thus spreading the glue. Furthermore, the bottom surface of the glue dispensing nozzle 601 is higher than the bottom surface of the glue roller 12, allowing the glue roller 12 to be placed directly on the folded cardboard for rolling.To prevent the glue nozzle 601 from directly contacting the folded cardboard and ensure sufficient glue dispensing space, a glue inlet seat 604 is sealed and snapped into the upper end of the glue dispensing cylinder 6 inside the mounting box 10. A glue delivery pipe 603 is sealed and connected to the side of the glue inlet seat 604. A screw feeder 602 is rotatably mounted inside both the glue dispensing cylinder 6 and the glue inlet seat 604. This structure allows for glue dispensing control through the rotation of the screw feeder 602. The glue delivery pipe 603 supplies glue to the glue dispensing cylinder 6 and is heat-resistant to prevent the glue from drying out. The mounting box 10 and the fixing plate 9 are detachable for easy maintenance of the internal structure of the mounting box 10.

[0018] Working Principle: When using the anti-overflow glue corner precision gluing structure for folded cardboard, the folded cardboard is first conveyed on the folded cardboard conveyor roller 7. After the folded cardboard moves into position, it is positioned using the existing positioning structure. At this time, the corner of the folded cardboard is located at the main body 1 of the corner gluing structure. The lifting hydraulic cylinder 5 drives the glue dispensing cylinder 6 and the glue rolling wheel 12 to move down synchronously, allowing the glue rolling wheel 12 to be supported on the folded cardboard. The glue dispensing cylinder 6 is fitted with the folded cardboard with a clearance. Then, the glue dispensing control motor 8 is started, which drives the screw feeder 602 to rotate through the pulley transmission mechanism 801. The glue that enters the glue feeder 604 through the glue delivery pipe 603 is conveyed to the glue dispensing nozzle 601 through the screw feeder 602 and extruded onto the folded cardboard. The mounting box 10 is installed and protected by the pulley transmission mechanism 801. During the gluing process, the linear adjustment mechanism 4 drives the lifting hydraulic cylinder 5 to move forward. The roller 12 moves in a straight line and rolls during the movement. When the roller 12 rolls to the glue application area, it spreads the glue evenly. The design of the glue groove 1201 allows the glue to be squeezed from the middle to both sides. The elastic material of the roller 12 spreads the glue evenly. Excess glue on the roller 12 can be scraped into the fixing cover 11 when it passes the glue scraper block 1101 to avoid excessive glue. The glue application angle can be adjusted as needed. The angle adjustment motor 3 adjusts the angle of the linear adjustment mechanism 4 under the positioning of the upper fixing plate 2, realizing the synchronous rotation of the lower part of the linear adjustment mechanism 4. The linear adjustment mechanism 4 is limited by the rotation through the limit groove 201. The support plate 202 provides lateral support and stability to the upper fixing plate 2. The detachable design of the fixing plate 9 and the mounting box 10 facilitates the maintenance of the internal structure of the mounting box 10, thus completing a series of tasks.

[0019] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An anti-glue overflow precise glue coating structure for the corner of a folded paperboard, comprising a folded paperboard corner glue coating structure main body (1) and a folded paperboard conveying roller (7), characterized in that: The upper end of the folding paperboard corner gluing structure main body (1) is provided with an upper fixed plate (2), a circular structure limiting groove (201) is opened in the lower end surface of the upper fixed plate (2), an angle adjusting motor (3) is installed at the center of the limiting groove (201) of the upper end surface of the upper fixed plate (2), a linear adjusting mechanism (4) is clamped in the limiting groove (201), the upper end surface of the linear adjusting mechanism (4) is connected with the output end of the angle adjusting motor (3) through a shaft coupling, so that the linear adjusting mechanism (4) can rotate, the linear adjusting mechanism (4) is movably connected with a lifting hydraulic cylinder (5) through a screw rod structure, the movable end of the lifting hydraulic cylinder (5) is connected with a fixed plate (9), the bottom of the fixed plate (9) is clamped and fixed with a mounting box (10), the mounting box (10) is connected with a fixed cover (11) below, the fixed cover (11) is rotatably clamped with a glue rolling wheel (12), and glue grooves (1201) are symmetrically opened at the outer circumference of the glue rolling wheel (12), the mounting box (10) is also penetrated by a glue discharging cylinder (6), the lower end of the glue discharging cylinder (6) is integrally provided with a glue discharging nozzle (601), and the bottom surface of the glue discharging nozzle (601) is higher than the bottom surface of the glue rolling wheel (12).

2. The precise glue application structure for folding paperboard corners to prevent glue overflow according to claim 1, characterized in that: The bottom side of the upper fixed plate (2) is fixed with a support plate (202) by welding, and the support plate (202) is bolted on the frame at both ends of the folding paperboard conveying roller (7).

3. The precise glue application structure for folding paperboard corners to prevent glue overflow according to claim 1, characterized in that: The upper end of the glue discharging cylinder (6) is sealingly clamped and mounted with a glue feeding seat (604) in the mounting box (10), and the side surface of the glue feeding seat (604) is sealingly communicated with a glue conveying pipe (603), and the glue discharging cylinder (6) and the glue feeding seat (604) are rotatably installed with a spiral discharger (602).

4. The precise glue application structure for folding paperboard corners to prevent glue overflow according to claim 1, characterized in that: The upper end of the fixed plate (9) is provided with a glue discharging control motor (8) on the other side, and the output end of the glue discharging control motor (8) is connected with a pulley transmission mechanism (801), and the pulley transmission mechanism (801) is matched with the spiral discharger (602) through a gear structure.

5. The precise glue application structure for folding paperboard corners without glue overflow according to claim 1, characterized in that: The side of the fixed cover (11) away from the glue discharging cylinder (6) is clamped with a structure protruding outward, and the protruding part of the fixed cover (11) is clamped with a glue scraping block (1101), and the glue scraping block (1101) is in contact with the outer ring of the glue rolling wheel (12).

6. The precise glue application structure for folding paperboard corners without glue overflow according to claim 1, characterized in that: The glue rolling wheel (12) and the glue discharging cylinder (6) are located directly below the linear adjusting mechanism (4), and the rolling direction of the glue rolling wheel (12) is the same as the linear adjusting direction of the linear adjusting mechanism (4).

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