A gluing device for a packaging box production

The adhesive device, featuring dual conveyor belt support, elastic pressing, and a brush design, solves the problems of adhesive contamination and waste in cardboard adhesive production, achieving uniform adhesive application and continuous production, thus improving the efficiency and quality of packaging box production.

CN224528163UActive Publication Date: 2026-07-21HUNAN HUAYOU PACKAGING MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUNAN HUAYOU PACKAGING MATERIALS CO LTD
Filing Date
2025-07-14
Publication Date
2026-07-21

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Abstract

The utility model belongs to the field of packing box production discloses a kind of viscose devices for packing box production, including the down component for the elastic down pressure packing box paperboard viscose, further including the feeding assembly for supporting packing box paperboard both sides and driving movement, the glue coating component for contacting packing box paperboard viscose is provided in feeding assembly middle, down component is set in glue coating component top;Feeding assembly includes rack body, two conveyer belts are symmetrically provided in rack body middle, and driving mechanism is provided at conveyer belt both ends;Glue coating component includes sol gel bin, sol gel bin top is equipped with viscose wheel, viscose wheel side is provided with brush, and adjusting mechanism for sliding height adjustment is provided at sol gel bin bottom, adjusting mechanism adjusts viscose wheel vertex to be higher than conveyer belt upper surface.The utility model of a kind of viscose devices for packing box production is moved by the setting of double conveyer belt supporting packing box paperboard both sides, both avoids pollution caused by direct contact after viscose, and avoids the waste of viscose.
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Description

Technical Field

[0001] This utility model belongs to the field of packaging box production, and in particular relates to an adhesive device for packaging box production. Background Technology

[0002] Adhesive bonding equipment for packaging box production is an indispensable key piece of equipment in the packaging industry, mainly used for the bonding process of packaging materials such as cartons and color boxes. It is suitable for various packaging box production lines and can be linked with die-cutting machines, box-gluing machines, and other equipment to form a complete automated production system. It has wide applications in the packaging fields of the food, pharmaceutical, and electronics industries, and is an important guarantee for improving packaging quality and production efficiency.

[0003] Comparing with Chinese Patent No. CN215970317U, a gluing device for packaging box production is disclosed, including a base, an gluing platform fixedly connected to the upper end of the base, a slot for inserting a pressure plate on the upper surface of the gluing platform, a glue-dissolving chamber inside the gluing platform, a cavity for installing a heater directly below the glue-dissolving chamber, a rectangular slot for exposing a gluing wheel on the upper surface of the gluing platform above the glue-dissolving chamber, a glue injection hole on the upper surface of the gluing platform on one side of the gluing wheel, a pressure plate at the upper end of the gluing platform, and a pressure roller on the lower surface of the pressure plate directly above the gluing wheel. This device allows the packaging box cardboard to pass smoothly between the gluing platform and the pressure plate while completing the gluing process. It is simple and convenient to operate. Furthermore, the presence of two gluing wheels ensures more thorough and even gluing of the packaging box cardboard.

[0004] However, the above-mentioned patented packaging cardboard is directly rubbed against the gluing table after being glued, which can easily contaminate the gluing table and scrape off some of the glue, resulting in waste. Therefore, a new device needs to be designed. Utility Model Content

[0005] The purpose of this invention is to provide an adhesive device for packaging box production, so as to solve the problems mentioned in the background art.

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

[0007] A gluing device for packaging box production includes a pressing component for elastically pressing down on the packaging box cardboard for gluing, and a feeding component for supporting and moving both sides of the packaging box cardboard. A coating component for contacting the packaging box cardboard for gluing is disposed in the middle of the feeding component, and the pressing component is disposed above the coating component. The feeding component includes a frame body with two conveyor belts symmetrically arranged in the middle of the frame body. Drive mechanisms are disposed at both ends of the conveyor belts, and limit plates are symmetrically disposed on both sides of the frame body. The coating component includes a glue dissolving tank, a glue-adhesive wheel mounted on the top of the dissolving tank, a brush disposed on one side of the glue-adhesive wheel, and an adjustment mechanism for sliding height adjustment at the bottom of the dissolving tank. A heating plate is mounted on the bottom surface of the dissolving tank, and a glue inlet pipe is disposed on the dissolving tank. The adjustment mechanism adjusts the apex of the glue-adhesive wheel to be higher than the upper surface of the conveyor belt.

[0008] Furthermore: the pressing assembly includes a lifting frame, two pressing rollers are symmetrically installed at the bottom of the lifting frame, and a spring mechanism is provided at the top of the lifting frame.

[0009] Furthermore, the elastic mechanism includes a limiting slide rod disposed at the center of the top of the lifting frame and four limiting guide rods disposed at the four corners of the top of the lifting frame, and a spring is installed on the limiting slide rod.

[0010] Furthermore: the drive mechanism includes two rotating shafts symmetrically arranged on the frame body, two conveying rollers symmetrically mounted on the rotating shafts, the conveyor belt being installed between the corresponding two conveying rollers, and a servo motor being provided at one end of one of the rotating shafts.

[0011] Furthermore, the conveyor belt is a toothed synchronous belt.

[0012] Furthermore, the adjustment mechanism includes two screws symmetrically arranged on both sides of the sol chamber and a fixed frame arranged below the sol chamber. Locking nuts are installed on the screws, and two limiting grooves are symmetrically arranged at both ends of the top of the fixed frame. The screws slide up and down along the limiting grooves.

[0013] Furthermore, the limiting groove is a U-shaped structure with an opening at the top.

[0014] Compared with existing technologies, the beneficial effects are:

[0015] 1. The double conveyor belts support the movement of the cardboard boxes on both sides, which avoids contamination caused by direct contact after the cardboard boxes are glued, and also avoids waste of glue on the cardboard boxes.

[0016] 2. The elastic pressing mechanism (spring + limit guide rod) works in conjunction with the pressing roller to ensure close contact and uniform pressure between the cardboard and the gluing wheel, avoiding uneven glue layer thickness caused by rigid pressing; the elastic pressing component allows continuous feeding without interrupting the production line, significantly improving capacity compared to intermittent gluing equipment; the composite guiding structure of four corner limit guide rods + center slide rod ensures no skewing during the pressing process;

[0017] 3. The brush-coating design ensures more even distribution of the adhesive, and combined with the heating plate for constant temperature control (to prevent the adhesive from solidifying), it effectively eliminates air bubbles and adhesive leakage.

[0018] 4. The screw-slide adjustment mechanism enables stepless adjustment of the adhesive wheel height, which can be adapted to different thicknesses of cardboard (0.5-5mm). After adjustment, the locking nut provides better stability than traditional bolt positioning. The U-shaped structure design of the limiting slide ensures vertical adjustment accuracy while avoiding horizontal displacement deviation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an adhesive device for packaging box production according to the present invention;

[0020] Figure 2 This is a schematic diagram of the feeding component of an adhesive device for packaging box production according to the present invention;

[0021] Figure 3 This is a schematic diagram of the adhesive application component of an adhesive device for packaging box production according to the present invention;

[0022] Figure 4 This is a front perspective view of the adhesive application component of an adhesive device for packaging box production according to the present invention;

[0023] Figure 5 This is a schematic diagram of the pressing component of an adhesive device for packaging box production according to the present invention;

[0024] Figure 6 This is a front perspective view of the pressing component of an adhesive device for packaging box production according to the present invention.

[0025] In the attached diagram, the following are the reference numerals: 101, frame; 102, servo motor; 103, rotating shaft; 104, conveyor roller; 105, conveyor belt; 106, limiting plate; 201, molten adhesive tank; 202, heating plate; 203, glue inlet pipe; 204, adhesive roller; 205, brush; 206, fixing frame; 207, screw; 208, locking nut; 209, limiting slide groove; 301, lifting frame; 302, lower pressure roller; 303, limiting guide rod; 304, limiting slide rod; 305, spring. Detailed Implementation

[0026] 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.

[0027] Please see Figures 1-6 A gluing device for packaging box production includes a pressing component for elastically pressing down on the packaging box cardboard for gluing, and a feeding component for supporting both sides of the packaging box cardboard and driving it to move. A coating component for contacting the packaging box cardboard for gluing is disposed in the middle of the feeding component, and the pressing component is disposed above the coating component.

[0028] In this embodiment: the pressing assembly includes a lifting frame 301, with two pressing rollers 302 symmetrically installed at the bottom of the lifting frame 301, and an elastic mechanism provided at the top of the lifting frame 301; the elastic mechanism includes a limiting slide bar 304 provided at the center of the top of the lifting frame 301 and four limiting guide rods 303 provided at the four corners of the top of the lifting frame 301, with springs 305 installed on the limiting slide bars 304; the top of the frame body 101 is pushed by the elastic force of the springs 305 to push the lifting frame 301 to move elastically downward under the limitation of the limiting guide rods 303, and the lifting frame 301 elastically presses the cardboard of the packaging box tightly against the conveyor belt 105 and the adhesive roller 204 through the pressing rollers 302, and the limiting slide bars 304 are used to ensure the smooth extension and retraction of the springs 305;

[0029] In this embodiment: the feeding assembly includes a frame body 101, with two conveyor belts 105 symmetrically arranged in the middle of the frame body 101. The conveyor belts 105 are toothed synchronous belts, and drive mechanisms are provided at both ends of the conveyor belts 105. Limiting plates 106 are symmetrically arranged on both sides of the frame body 101. The drive mechanism includes two rotating shafts 103 symmetrically arranged on the frame body 101, with two conveying rollers 104 symmetrically mounted on the rotating shafts 103. The conveyor belts 105 are installed between the corresponding two conveying rollers 104. A servo motor 102 is provided at one end of one of the rotating shafts 103. The cardboard packaging is placed flat on the two conveyor belts 105. The limiting plates 106 are used to restrict the two sides of the cardboard packaging. The frame body 101 supports the servo motor 102, which drives the conveying rollers 104 through the rotating shafts 103 to push the conveyor belts 105 and move the cardboard packaging.

[0030] In this embodiment: the adhesive application assembly includes a sol-gel tank 201, an adhesive roller 204 mounted on the top of the sol-gel tank 201, a brush 205 disposed on one side of the adhesive roller 204, an adjustment mechanism for sliding height adjustment disposed at the bottom of the sol-gel tank 201, a heating plate 202 mounted on the bottom surface of the sol-gel tank 201, and an adhesive inlet pipe 203 disposed on the sol-gel tank 201. The adjustment mechanism adjusts the apex of the adhesive roller 204 to be higher than the upper surface of the conveyor belt 105. The adjustment mechanism includes two screws 207 symmetrically arranged on both sides of the sol-gel tank 201 and a fixing frame 206 disposed below the sol-gel tank 201. Locking nuts 208 are mounted on the screws 207, and two limiting grooves 209 are symmetrically arranged at both ends of the top of the fixing frame 206. The screw 207 slides up and down along the limiting slide groove 209; the limiting slide groove 209 is a U-shaped structure with an open top; before operation, the screw 207 is moved up and down along the limiting slide groove 209 of the fixed frame 206, and the vertex of the adhesive roller 204 is adjusted to be higher than the upper surface of the conveyor belt 105. Then, the locking nut 208 is tightened to clamp and fix the fixed frame 206. During operation, the adhesive is injected into the melting tank 201 from the glue inlet pipe 203. The heating plate 202 heats the adhesive in the melting tank 201 to prevent solidification. When the packaging box cardboard moves, the adhesive roller 204 rotates accordingly, applying the adhesive in the melting tank 201 to the packaging box cardboard. At the same time, when the packaging box cardboard passes through the brush 205, the brush 205 applies the adhesive more evenly.

[0031] Working principle: Before operation, the screw 207 is moved up and down along the limiting groove 209 of the fixed frame 206 to adjust the apex of the adhesive roller 204 to be higher than the upper surface of the conveyor belt 105. Then, the locking nut 208 is tightened to clamp and fix the fixed frame 206. During operation, adhesive is injected into the melting tank 201 from the adhesive inlet pipe 203. The heating plate 202 heats the adhesive in the melting tank 201 to prevent solidification. The cardboard packaging is placed flat on the two conveyor belts 105. The limiting plate 106 is used to limit the two sides of the cardboard packaging. The frame body 101 supports the servo motor 102, which drives the conveyor roller 104 through the rotating shaft 103 to push the conveyor belt 105. As the cardboard box moves, when it passes the adhesive roller 204, the top of the frame 101 is pushed by the spring 305 to move the lifting frame 301 elastically downward under the limit of the guide rod 303. The lifting frame 301 then presses the cardboard box tightly against the conveyor belt 105 and the adhesive roller 204 via the lower pressure roller 302. As the cardboard box moves, the adhesive roller 204 rotates accordingly, applying the adhesive in the molten adhesive tank 201 onto the cardboard box. At the same time, when the cardboard box passes the brush 205, the brush 205 applies the adhesive more evenly until the cardboard box is completely glued and discharged from the other end of the conveyor belt 105.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adhesive applicator for packaging box production, comprising a pressing component for elastically pressing down on the packaging box cardboard for adhesive application, characterized in that: It also includes a feeding assembly for supporting both sides of the cardboard box and driving it to move, wherein a gluing assembly for contacting the adhesive on the cardboard box is provided in the middle of the feeding assembly, and the pressing assembly is provided above the gluing assembly; The feeding assembly includes a frame body (101), two conveyor belts (105) are symmetrically arranged in the middle of the frame body (101), driving mechanisms are provided at both ends of the conveyor belts (105), and limit plates (106) are symmetrically arranged on both sides of the frame body (101). The adhesive application assembly includes a sol-gel tank (201), an adhesive roller (204) is mounted on the top of the sol-gel tank (201), a brush (205) is provided on one side of the adhesive roller (204), an adjustment mechanism for sliding height adjustment is provided at the bottom of the sol-gel tank (201), a heating plate (202) is mounted on the bottom surface of the sol-gel tank (201), and an adhesive inlet pipe (203) is provided on the sol-gel tank (201). The adjustment mechanism adjusts the apex of the adhesive roller (204) to be higher than the upper surface of the conveyor belt (105).

2. The adhesive applicator for packaging box production according to claim 1, characterized in that: The pressing assembly includes a lifting frame (301), two pressing rollers (302) are symmetrically installed at the bottom of the lifting frame (301), and an elastic mechanism is provided at the top of the lifting frame (301).

3. The adhesive applicator for packaging box production according to claim 2, characterized in that: The elastic mechanism includes a limiting slide rod (304) set at the center of the top of the lifting frame (301) and four limiting guide rods (303) set at the four corners of the top of the lifting frame (301). A spring (305) is installed on the limiting slide rod (304).

4. The adhesive applicator for packaging box production according to claim 1, characterized in that: The drive mechanism includes two rotating shafts (103) symmetrically arranged on the frame body (101), two conveying rollers (104) symmetrically installed on the rotating shafts (103), and the conveyor belt (105) is installed between the corresponding two conveying rollers (104). One end of one of the rotating shafts (103) is provided with a servo motor (102).

5. The adhesive applicator for packaging box production according to claim 4, characterized in that: The conveyor belt (105) is a toothed synchronous belt.

6. The adhesive applicator for packaging box production according to claim 1, characterized in that: The adjustment mechanism includes two screws (207) symmetrically arranged on both sides of the sol tank (201) and a fixing frame (206) arranged below the sol tank (201). A locking nut (208) is installed on the screw (207). Two limiting grooves (209) are symmetrically arranged at both ends of the top of the fixing frame (206). The screw (207) slides up and down along the limiting grooves (209).

7. The adhesive applicator for packaging box production according to claim 6, characterized in that: The limiting groove (209) is a U-shaped structure with an open top.