A device for controlling the amount of adhesive applied to MDF boards

By designing a glue application control device for MDF, the amount of glue can be adjusted using an electric push rod and a scraper, thus solving the problem of uneven glue application on MDF, achieving effective bonding and reducing waste.

CN224425880UActive Publication Date: 2026-06-30SUQIAN AILING NEW MATERIALS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUQIAN AILING NEW MATERIALS CO LTD
Filing Date
2025-08-01
Publication Date
2026-06-30

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    Figure CN224425880U_ABST
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Abstract

This utility model relates to the field of MDF (Medium-density Fiberboard) adhesive application technology and discloses an MDF adhesive application volume control device, including an adhesive application device and a support frame. A rotating roller is installed at the bottom of the support frame, and conveyor belts are installed at both ends of the rotating roller. A variable frequency motor is installed at the front of the support frame. The adhesive application device is installed on the top of the support frame and includes a metal cover plate, an adhesive mixing tank, an adhesive application component, and a connecting pipe. The adhesive mixing tank is fixedly connected to the top surface of the metal cover plate. The connecting pipe and the adhesive mixing tank are connected by fastening bolts, and the connecting pipe and the adhesive application component are also connected by fastening bolts. This MDF adhesive application volume control device, by setting an electric push rod, a clamping frame, and a scraper, allows the electric push rod to adjust the position of the scraper, enabling the scraper to scrape the adhesive onto the surface of the MDF, ensuring complete application of adhesive and effectively bonding the MDF.
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Description

Technical Field

[0001] This utility model relates to the field of MDF glue application technology, specifically to a MDF glue application volume control device. Background Technology

[0002] Medium-density fiberboard (MDF) is a type of engineered wood product made from wood fibers or other plant fibers, which are pressed together under high temperature and pressure with the application of adhesives.

[0003] The prior art discloses a glue applicator with the publication number CN210134286U, which addresses the problem that most existing glue applicators cannot control the glue application amount and are prone to waste due to over-application. The proposed solution includes two support plates. Two glue application rollers are rotatably mounted on one side of the two support plates that are close to each other. A glue application tube located above the glue application rollers is fixedly mounted on the same side of the two support plates that are close to each other. The glue application tube has multiple glue outlet holes and a first connecting pipe is fixedly connected to the glue application tube. The two ends of the first connecting pipe are closed. An L-shaped bracket is fixedly mounted on the top of each of the two support plates. This invention can control the glue application amount, avoiding waste due to over-application. Furthermore, it can promptly alert workers when the glue in the storage tank is about to run out or has already run out. The structure is simple and easy to use.

[0004] The aforementioned glue applicator has multiple glue outlets, which allow glue to drip onto the MDF board. However, the glue accumulates on the MDF board, preventing the MDF board from being effectively bonded. Utility Model Content

[0005] The purpose of this invention is to provide a device for controlling the amount of adhesive applied to MDF boards, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a density board glue application control device, comprising a glue application device and a support frame, wherein a rotating roller is installed at the bottom of the support frame, conveyor belts are installed at the left and right ends of the rotating roller, a variable frequency motor is installed at the front of the support frame, and the glue application device is installed at the top of the support frame.

[0007] The adhesive application device includes a metal cover plate, an adhesive mixing tank, an adhesive application component, and a connecting pipe. The adhesive mixing tank is fixedly connected to the top surface of the metal cover plate. The connecting pipe and the adhesive mixing tank are connected by fastening bolts. The connecting pipe and the adhesive application component are also connected by fastening bolts.

[0008] The adhesive application assembly includes an adhesive application unit and a metering unit, which are arranged sequentially from the outside to the inside.

[0009] The quantitative unit includes a rectangular plate, a locking bolt is threaded to the top of the rectangular plate, a clamping frame is threaded to the threaded surface of the locking bolt, an electric push rod is installed at the front end of the clamping frame, and a scraping plate is installed at the bottom of the piston rod inside the electric push rod.

[0010] Preferably, the adhesive application unit includes an adhesive application box, a locking threaded rod is fixedly connected to the top surface of the adhesive application box, a limit cover is installed on the top surface of the adhesive application box, and an adhesive application pipe is fixedly connected to the bottom surface of the adhesive application box.

[0011] Preferably, the clamping frame is slidably connected to the top of the support frame and movably connected to the bottom of the glue application box. The clamping frame and the support frame can clamp and fix the glue application box, making it convenient to replace the glue application box pins.

[0012] Preferably, the limiting cover plate and the connecting pipe are connected by fastening bolts, and the limiting cover plate is slidably connected to the surface of the locking threaded rod, which can lock and fix the limiting cover plate and the glue application box.

[0013] Preferably, the scraping plate is slidably connected to the outward end of the clamping frame, and the electric push rod can push the scraping plate downward, making it convenient to disassemble and replace the scraping plate, and scraping plates of different materials can be used.

[0014] Preferably, the rectangular plate is installed in the middle of the support frame, and the rectangular plate is movably connected to the bottom surface of the clamping frame. The rectangular plate and the clamping frame are installed in the middle position of the support frame. The clamping frame and the rectangular plate can clamp and fix the glue application box, which can protect the safety of the glue application box.

[0015] Preferably, the metal cover is installed on the top surface of the support frame. The metal cover can determine the position of the glue mixing tank, making it convenient to disassemble and replace the metal cover and the glue mixing tank, and protecting the safety of the metal cover and the glue mixing tank.

[0016] Preferably, there are two scraping plates, which are arranged one in front of the other. The scraping plates can scrape off the glue on the surface of the MDF and the amount of glue on the MDF surface can be adjusted.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This MDF glue application control device is equipped with an electric push rod, a clamping frame, and a scraper. The electric push rod can push the scraper downwards and adjust the position of the scraper to scrape glue onto the surface of the MDF. This allows for adjustment of the amount of glue on the MDF surface, ensuring complete coverage and effective bonding of the MDF, thereby increasing the device's service life.

[0019] 2. This MDF glue application control device is equipped with a rectangular plate, locking bolts, and a clamping frame. The locking bolts can lock and fix the rectangular plate and the clamping frame, thereby allowing the clamping frame to be disassembled and replaced. Different types of clamping frames can be used according to the specifications of the glue application box, thereby increasing the service life of the device. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the entire utility model;

[0021] Figure 2 This utility model Figure 2 A magnified view of the structure at point A in the diagram;

[0022] Figure 3 This is a three-dimensional schematic diagram of the adhesive application device of this utility model;

[0023] Figure 4 This is a three-dimensional schematic diagram of the clamping frame, electric push rod, and scraping plate of this utility model.

[0024] In the diagram: 1. Glue application device; 11. Metal cover plate; 12. Glue mixing tank; 13. Glue application assembly; 131. Rectangular plate; 132. Locking bolt; 133. Clamping frame; 134. Electric push rod; 135. Scraper; 136. Limiting cover plate; 137. Glue application box; 138. Glue application pipe; 139. Locking threaded rod; 14. Connecting pipe; 2. Support frame; 3. Rotating roller; 4. Variable frequency motor; 5. Conveyor belt. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-4 The present invention provides the following technical solution:

[0027] A density board glue application control device includes a glue application device 1 and a support frame 2. A rotating roller 3 is installed at the bottom of the support frame 2, and conveyor belts 5 are installed at the left and right ends of the rotating roller 3. A variable frequency motor 4 is installed at the front of the support frame 2, and the glue application device 1 is installed at the top of the support frame 2.

[0028] The adhesive application device 1 includes a metal cover plate 11, an adhesive mixing tank 12, an adhesive application component 13, and a connecting pipe 14. The adhesive mixing tank 12 is fixedly connected to the top surface of the metal cover plate 11, and the metal cover plate 11 is installed on the top surface of the support frame 2. The metal cover plate 11 can determine the position of the adhesive mixing tank 12, making it convenient to disassemble and replace the metal cover plate 11 and the adhesive mixing tank 12, and can protect the safety of the metal cover plate 11 and the adhesive mixing tank 12. The connecting pipe 14 is connected to the adhesive mixing tank 12 by fastening bolts, and the connecting pipe 14 is connected to the adhesive application component 13 by fastening bolts.

[0029] The adhesive application assembly 13 includes an adhesive application unit and a metering unit, which are arranged sequentially from the outside to the inside.

[0030] The quantitative unit includes a rectangular plate 131. A locking bolt 132 is threadedly connected to the top of the rectangular plate 131. A clamping frame 133 is threadedly connected to the threaded surface of the locking bolt 132. An electric push rod 134 is installed at the front end of the clamping frame 133. A scraping plate 135 is installed at the bottom of the piston rod inside the electric push rod 134. There are two scraping plates 135, which are distributed front and back. The scraping plates 135 can scrape the glue on the surface of the MDF board and can adjust the amount of glue on the surface of the MDF board. The scraping plates 135 are slidably connected to the outward end of the clamping frame 133. The electric push rod 134 can push the scraping plates 135 downward, which makes it easy to disassemble and replace the scraping plates 135. Scraping plates 135 made of different materials can be used.

[0031] The adhesive application unit includes an adhesive application box 137, a clamping frame 133 slidably connected to the top of a support frame 2, and a movably connected to the bottom of the adhesive application box 137. The clamping frame 133 and the support frame 2 can clamp and fix the adhesive application box 137, facilitating the replacement of the pins on the adhesive application box 137. A locking threaded rod 139 is fixedly connected to the top surface of the adhesive application box 137. A rectangular plate 131 is installed in the middle of the support frame 2 and movably connected to the bottom surface of the clamping frame 133. The rectangular plate 131 and the clamping frame 133 are installed... At the middle position of the support frame 2, the clamping frame 133 and the rectangular plate 131 can clamp and fix the glue application box 137, which can protect the safety of the glue application box 137. The top surface of the glue application box 137 is equipped with a limit cover plate 136. The limit cover plate 136 and the connecting pipe 14 are connected by fastening bolts. The limit cover plate 136 is slidably connected to the surface of the locking threaded rod 139. The locking threaded rod 139 can lock and fix the limit cover plate 136 and the glue application box 137. The bottom surface of the glue application box 137 is fixedly connected to the glue application pipe 138.

[0032] When in use, start the glue mixing tank 12. The glue mixing tank 12 can mix the glue, so that the glue enters the interior of the glue application box 137 through the connecting pipe 14, and then drips down through the glue application pipe 138 at the bottom of the glue application box 137.

[0033] Then, the electric push rod 134 is activated, which can push the scraping plate 135 downward. The scraping plate 135 slides at the bottom of the clamping frame 133, so that the scraping plate 135 scrapes the top surface of the MDF, and can adjust the amount of glue on the MDF surface.

[0034] After applying the adhesive to the surface of the MDF board, rotate the fastening bolts to disengage the connecting pipe 14 from the limiting cover plate 136 and the adhesive mixing tank 12. Then, pull the connecting pipe 14 forward to allow it to slide along the inner side of the limiting cover plate 136 and the adhesive mixing tank 12, thus disengaging the connecting pipe 14 from the adhesive mixing tank 12 and the limiting cover plate 136.

[0035] Pulling the metal cover 11 upwards will cause the glue mixing tank 12 to move upwards, allowing the metal cover 11 and the glue mixing tank 12 to detach from the support frame 2, thus enabling the metal cover 11 and the glue mixing tank 12 to be disassembled and replaced.

[0036] Then, pull the glue applicator 137 upward to move it away from the clamping frame 133, making it easy to disassemble and replace the glue applicator 137. Different sizes of glue applicator 137 can be used.

[0037] Rotating the locking bolt 132 disengages the locking bolt 132 from the clamping frame 133 and the rectangular plate 131, loosening the connection between the locking bolt 132 and the clamping frame 133. This pulls the rectangular plate 131 outward, causing it to detach from the support frame 2, making it easier to disassemble and replace the rectangular plate 131.

[0038] Pull the clamping frame 133 upward and move it upward along the inner wall surface of the support frame 2. This will allow the clamping frame 133 to be detached from the support frame 2 and can be disassembled and replaced.

[0039] 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 the 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. A density board sizing quantity control device, comprising a sizing device (1) and a support frame body (2), characterized in that: A rotating roller (3) is installed at the bottom of the support frame (2), and a conveyor belt (5) is installed at the left and right ends of the rotating roller (3). A variable frequency motor (4) is installed at the front of the support frame (2), and the glue application device (1) is installed at the top of the support frame (2). The adhesive application device (1) includes a metal cover plate (11), an adhesive mixing tank (12), an adhesive application assembly (13), and a connecting pipe (14). The adhesive mixing tank (12) is fixedly connected to the top surface of the metal cover plate (11). The connecting pipe (14) and the adhesive mixing tank (12) are connected by fastening bolts. The connecting pipe (14) and the adhesive application assembly (13) are connected by fastening bolts. The adhesive application assembly (13) includes an adhesive application unit and a metering unit, which are arranged sequentially from the outside to the inside. The quantitative unit includes a rectangular plate (131), the top of which is threaded with a locking bolt (132), and the threaded surface of the locking bolt (132) is threaded with a clamping frame (133). An electric push rod (134) is installed at the front end of the clamping frame (133), and a scraping plate (135) is installed at the bottom of the piston rod inside the electric push rod (134).

2. The MDF glue application control device according to claim 1, characterized in that: The adhesive application unit includes an adhesive application box (137), a locking threaded rod (139) is fixedly connected to the top surface of the adhesive application box (137), a limit cover plate (136) is installed on the top surface of the adhesive application box (137), and an adhesive application pipe (138) is fixedly connected to the bottom surface of the adhesive application box (137).

3. The MDF glue application control device according to claim 2, characterized in that: The clamping frame (133) is slidably connected to the top of the support frame (2), and the clamping frame (133) is movably connected to the bottom of the glue application box (137).

4. The MDF glue application control device according to claim 3, characterized in that: The limiting cover plate (136) and the connecting pipe (14) are connected by fastening bolts, and the limiting cover plate (136) is slidably connected to the surface of the locking threaded rod (139).

5. The MDF glue application control device according to claim 4, characterized in that: The scraping plate (135) is slidably connected to the outward end of the clamping frame (133).

6. The MDF glue application control device according to claim 5, characterized in that: The rectangular plate (131) is installed in the middle of the support frame (2), and the rectangular plate (131) is movably connected to the bottom surface of the clamping frame (133).

7. The MDF glue application control device according to claim 6, characterized in that: The metal cover plate (11) is installed on the top surface of the support frame (2).

8. The MDF glue application control device according to claim 7, characterized in that: The number of scraping plates (135) is two, and the two scraping plates (135) are distributed one in front of the other.