Gluing device capable of adjusting glue width and glue thickness

Abstract

The utility model relates to the technical field of glue dispensing, in particular to a glue spreading device with adjustable glue width and glue thickness, which comprises an auxiliary bearing plate, a glue dispensing valve is arranged on the side surface of the auxiliary bearing plate, and the lower end of the glue dispensing valve is connected with a glue guide needle tube; the lower end of the rotating shaft cylinder is embedded into a butt joint cavity formed in the upper end of the glue scraping part, the lower end of the rotating shaft cylinder is detachably connected with the glue scraping part, the rotating shaft cylinder is rotationally connected with the rotating bearing part, the rotating bearing part is arranged on the side face of the auxiliary bearing plate, and a glue guide needle tube is contained in an inner cavity of the rotating bearing part and is coaxial with the rotating shaft cylinder; the glue guide needle tube downwards extends into a glue guide hole axially formed in the glue scraping part; the rotating unit is arranged on the auxiliary bearing plate and used for driving the rotating shaft cylinder to rotate; a gluing groove is formed in the lower end face of the glue scraping part in a radial penetrating mode, and an inner cavity of the gluing groove communicates with the glue guide hole. According to the utility model, the glue scraping parts of the gluing grooves with different widths and depths are replaced, so that glue with specific widths and thicknesses can be coated at specified positions on the surface of a workpiece, and the continuous gluing operation can be realized.

Description

Technical Field

[0001] This utility model relates to the field of dispensing technology, and in particular to a dispensing device with adjustable glue width and thickness. Background Technology

[0002] Printed packaging involves printing decorative patterns, designs, or text onto packaging paper. The packaging paper undergoes a series of processes from production to completion, including the use of a gluing device. As the packaging paper passes through the gluing device, a layer of glue is applied to its surface. There are many types of gluing machines on the market, such as drum gluing machines, double-acting gluing machines, and double-station lifting gluing machines.

[0003] To adapt to the needs of different packaging materials and structures, such as paper, plastic, and metal, which have varying characteristics, paper, being soft and absorbent, requires a thicker adhesive layer to penetrate and form a strong bond. Plastic surfaces are smooth, and excessively thick adhesive can easily drip; a thinner layer is sufficient for good adhesion. The adhesive width must be adjusted according to the packaging structure and material area to ensure adequate bonding. For cardboard packaging, the adhesive width must match the fold width, and the thickness must ensure a firm bond. For multi-layered packaging, the adhesive thickness and width must ensure a tight bond between layers to prevent the packaging from unraveling during transportation and use, and also allow for continuous operation. Therefore, an adjustable adhesive application device with adjustable thickness and width is needed. Utility Model Content

[0004] The present invention aims to solve the above-mentioned defects and provide a glue application device with adjustable glue width and thickness.

[0005] In order to overcome the defects in the background technology, the technical solution adopted by this utility model to solve its technical problem is: a glue application device with adjustable glue width and thickness, including a secondary support plate, a glue dispensing valve is provided on its side, and the lower end of the glue dispensing valve is connected to the glue guiding needle tube.

[0006] The lower end of the rotating shaft cylinder is embedded in the mating cavity opened at the upper end of the scraping part, and its lower end is detachably connected to the scraping part. It is rotatably connected to the rotating bearing part, and the rotating bearing part is disposed on the side of the sub-bearing plate. Its inner cavity accommodates the glue guiding needle tube, which is coaxially arranged with the rotating shaft cylinder. The glue guiding needle tube extends downward into the glue guiding hole opened axially on the scraping part.

[0007] A rotating unit, which is disposed on the sub-bearing plate, is used to drive the rotating shaft cylinder to rotate;

[0008] A coating groove is radially opened through the lower end face of the coating part, and the inner cavity of the coating groove is connected to the adhesive guide hole.

[0009] Further improvements include providing a connecting hole on the scraper part so that the locking bolt can be connected to the rotating shaft cylinder through the connecting hole.

[0010] Further improvements include an axially detachable sliding connection between the lower end of the rotating shaft cylinder and the scraping part, a spring sleeved on the rotating shaft cylinder, with one end of the spring abutting against a protrusion formed on the rotating shaft cylinder and the other end abutting against the scraping part.

[0011] Further improvements include a connecting hole provided radially on the scraper part so that the locking bolt can be connected to the rotating shaft cylinder through the connecting hole in the radial direction of the scraper part, and the connecting hole is an oblong hole.

[0012] Further improvements include the rotating unit comprising a motor and a belt mounted on the sub-bearing plate, wherein the main rotating wheel connected to the output end of the motor is connected to the driven rotating wheel sleeved on the rotating shaft cylinder via a belt.

[0013] Further improvements include providing a loading hole for mounting a bearing on the rotating bearing portion, and having the bearing fitted onto the rotating shaft cylinder.

[0014] Further improvements include the installation of a lifting unit between the secondary support plate and the main support plate.

[0015] Further improvements include the main support plate moving freely along the X and Y axes on a parallel plane formed above the worktable, thereby enabling the application of adhesive to the substrate placed on the worktable.

[0016] The beneficial effects of this utility model are: by changing the scraping part of the glue-applying groove with different widths and depths, this design can achieve the application of glue of a specific width and thickness at a specified position on the workpiece surface, and the use of a rotating shaft cylinder design can achieve continuous glue application. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is the front view of this utility model;

[0019] Figure 2 This is the right view of this utility model;

[0020] Figure 3 This is an axonometric view of the present invention;

[0021] Figure 4 This is an axonometric rear view of the present invention;

[0022] Figure 5 This is an axial view of the adhesive scraping part in this utility model;

[0023] Figure 6 This is a front view of the adhesive scraping part in this utility model;

[0024] Figure 7 This is an isometric view of the installation of this utility model on the workbench;

[0025] In the diagram, 1-main support plate, 2-scraping part, 3-secondary rotating wheel, 4-dispensing valve, 5-secondary support plate, 6-dispensing needle tube, 7-motor, 8-belt, 9-main rotating wheel, 10-spring, 11-dispensing hole, 12-locking bolt, 13-rotating support part, 14-bearing, 15-lifting unit, 16-loading hole, 17-rotating cylinder, 18-connecting hole, 19-dating cavity, 20-dispensing tank, 21-worktable. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art without creative effort in accordance with the embodiments of the basic utility model are within the scope of protection of this utility model.

[0027] according to Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, an adhesive applicator with adjustable adhesive width and thickness includes a secondary support plate 5, on the side of which a dispensing valve 4 is provided, and the lower end of the dispensing valve 4 is connected to a guide needle tube 6, through which the dispensing valve 4 outputs adhesive liquid.

[0028] The lower end of the rotating shaft cylinder 17 is embedded in the docking cavity 19 opened at the upper end of the scraping part 2, and its lower end is detachably connected to the scraping part 2. It is rotatably connected to the rotating bearing part 13, and the rotating bearing part 13 is disposed on the side of the auxiliary bearing plate 5. Its inner cavity accommodates the glue guiding needle tube 6. The glue guiding needle tube 6 is coaxially arranged with the rotating shaft cylinder 17, and the glue guiding needle tube 6 extends downward into the glue guiding hole 11 opened axially on the scraping part 2.

[0029] A rotating unit, which is disposed on the auxiliary bearing plate 5, is used to drive the rotating shaft cylinder 17 to rotate;

[0030] A coating groove 20 is radially opened through the lower end face of the scraper part 2. The inner cavity of the coating groove 20 is connected to the adhesive guide hole 11. The width and depth of the coating groove 20 determine the width and thickness of the adhesive applied at a specified position on the substrate surface.

[0031] In this embodiment, the scraping part 2 is provided with a connecting hole 18 so that the locking bolt 12 can be connected to the rotating shaft cylinder 17 through the connecting hole 18, thereby connecting the scraping part 2 and the rotating shaft cylinder 17 to ensure that the scraping part 2 and the rotating shaft cylinder 17 rotate synchronously.

[0032] In this embodiment, the lower end of the rotating shaft cylinder 17 is axially detachably slidably connected to the scraper part 2. A spring 10 is sleeved on the rotating shaft cylinder 17, with one end of the spring 10 abutting against the protrusion formed on the rotating shaft cylinder 17 and the other end abutting against the scraper part 2. The elastic force of the spring 10 applies pressure to the scraper part 2, thereby making the lower end face of the scraper part 2 tightly adhere to the surface of the substrate. The flexible contact ensures the stability of the adhesive application.

[0033] In a further embodiment, the scraper part 2 is provided with a connecting hole 18 in the radial direction so that the locking bolt 12 can be connected to the rotating shaft cylinder 17 through the connecting hole 18 in the radial direction of the scraper part 2. The connecting hole 18 is an oblong hole. This design allows the scraper part 2 to be axially slidably connected to the lower end of the rotating shaft cylinder 17.

[0034] In this embodiment, as Figure 1 As shown, the rotating unit includes a motor 7 and a belt 8 mounted on the sub-bearing plate 5. The main rotating wheel 9 connected to the output end of the motor 7 is connected to the driven rotating wheel 3 mounted on the rotating shaft cylinder 17 via the belt 8, so that the main rotating wheel 9 and the driven rotating wheel 3 rotate synchronously. This design drives the rotating shaft cylinder 17 to rotate. At the same time, gear transmission can also be used for driving.

[0035] In this embodiment, as Figure 2 As shown, the rotating bearing part 13 has a loading hole 16 for loading the bearing 14, and the bearing 14 is sleeved on the rotating shaft cylinder 17, so that the rotating bearing part 13 and the rotating shaft cylinder 17 are rotatably connected. The rotating bearing part 13 supports the rotating shaft cylinder 17 when it rotates, ensuring the stability of the rotating shaft cylinder 17 when it rotates. In a further embodiment, there are preferably two rotating bearing parts 13, and the bearing 14 is preferably a needle roller bearing or a sliding bearing.

[0036] In this embodiment, a lifting unit 15 is provided between the secondary support plate 5 and the main support plate 1, thereby driving the secondary support plate 5 to move up and down through the lifting unit 15, so that the glue scraper 2 is attached to the surface of the substrate for glue injection.

[0037] Further embodiments, such as Figure 7 As shown, the main support plate 1 can move freely along the X and Y axes on the parallel plane formed above the worktable 21, thereby applying adhesive to the substrate placed on the worktable 21.

[0038] Working principle: First, the lifting unit 15 moves the auxiliary support plate 5 downward. At this time, the scraper part 2 will adhere to the substrate. At the same time, the spring 10 is compressed, and the glue dispensing valve 4 injects glue into the glue coating tank 20 through the glue guide needle tube 6. The glue will fill the glue coating tank 20. When the scraper part 2 moves, glue of a specific width and thickness is applied. At the same time, the rotating unit drives the rotating shaft cylinder 17 and the scraper part 2 to rotate synchronously, which can change the direction of glue application and realize continuous glue application.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A glue application device with adjustable glue width and thickness, characterized in that, It includes a sub-bearing plate (5), which has a dispensing valve (4) on its side, and the lower end of the dispensing valve (4) is connected to the dispensing needle tube (6); The lower end of the rotating shaft cylinder (17) is embedded in the docking cavity (19) opened at the upper end of the scraper (2), and its lower end is detachably connected to the scraper (2). It is rotatably connected to the rotating bearing part (13), and the rotating bearing part (13) is located on the side of the sub-bearing plate (5). Its inner cavity contains the glue guiding needle tube (6). The glue guiding needle tube (6) is coaxially arranged with the rotating shaft cylinder (17). The glue guiding needle tube (6) extends downward into the glue guiding hole (11) opened axially on the scraper (2). A rotating unit, which is disposed on the sub-bearing plate (5), is used to drive the rotating shaft cylinder (17) to rotate; The glue scraper (2) has a glue-applying groove (20) that is radially opened through the lower end face of the glue-applying part (2), and the inner cavity of the glue-applying groove (20) is connected to the glue-guided hole (11).

2. The adhesive application device with adjustable adhesive width and thickness as described in claim 1, characterized in that: The scraper part (2) is provided with a connecting hole (18) so that the locking bolt (12) can be connected to the rotating cylinder (17) through the connecting hole (18).

3. The adhesive application device with adjustable adhesive width and thickness as described in claim 1, characterized in that: The lower end of the rotating cylinder (17) is axially detachably slidably connected to the scraper part (2). A spring (10) is sleeved on the rotating cylinder (17), and one end of the spring (10) abuts against the protrusion formed on the rotating cylinder (17) and the other end abuts against the scraper part (2).

4. The adhesive application device with adjustable adhesive width and thickness as described in claim 3, characterized in that: The scraper part (2) has a connecting hole (18) in the radial direction so that the locking bolt (12) can be connected to the rotating shaft cylinder (17) through the connecting hole (18) in the radial direction of the scraper part (2), and the connecting hole (18) is a waist-shaped hole.

5. The adhesive application device with adjustable adhesive width and thickness as described in claim 1, characterized in that: The rotating unit includes a motor (7) and a belt (8) mounted on the sub-bearing plate (5). The main rotating wheel (9) connected to the output end of the motor (7) is connected to the slave rotating wheel (3) mounted on the rotating shaft cylinder (17) via the belt (8).

6. The adhesive application device with adjustable adhesive width and thickness as described in claim 1, characterized in that: The rotating bearing part (13) is provided with a loading hole (16) for loading the bearing (14), and the bearing (14) is sleeved on the rotating shaft cylinder (17).

7. The adhesive application device with adjustable adhesive width and thickness as described in claim 1, characterized in that: A lifting unit (15) is provided between the secondary support plate (5) and the main support plate (1).

8. The adhesive application device with adjustable adhesive width and thickness as described in claim 7, characterized in that: The main support plate (1) can move freely along the X and Y axes on the parallel plane formed above the worktable (21), thereby applying adhesive to the substrate placed on the worktable (21).

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