Quantitative feeding gluing device

Abstract

The utility model relates to the technical field of gluing devices, in particular to a quantitative feeding gluing device which comprises a conveying frame, the front end of the conveying frame is fixedly connected with a glue solution box, and the top of the glue solution box is fixedly connected with a batcher; according to the device, a glue solution adhering to the surface of the glue spreader is scraped through a glue scraping plate, and compared with an existing mode that the glue solution adhering to the surface of the glue spreader is inconvenient to clean in time, so that the surface thickness of the glue spreader is not uniform, the glue solution adhering to the surface of the glue spreader is cleaned in time, and the surface thickness of the glue spreader is uniform; according to the glue coating device for the toughened copper-clad plate, the effect that a glue coating roller uniformly coats the toughened copper-clad plate is ensured, through a glue collecting frame and a liquid guide hole, a glue solution scraped by a glue scraping plate orderly flows into the glue collecting frame, through the glue collecting frame, the liquid guide plate and a liquid discharge pipe, the glue solution collected in the glue collecting frame is guided into a glue solution box, and the scraped glue solution is recycled; the waste of the glue solution is reduced.

Description

Technical Field

[0001] This utility model relates to the field of adhesive coating equipment technology, and in particular to an adhesive coating equipment for quantitative feeding. Background Art

[0002] A metering adhesive applicator is an automated device that precisely controls the flow rate of adhesive to apply a fixed amount of adhesive to a product. Toughened copper clad laminate (CCL) is a special type of CCL used in circuit board manufacturing. The preparation of toughened CCL requires a metering adhesive applicator, which sprays a fixed amount of adhesive onto the surface of an applicator roller and then applies the adhesive from the roller to the surface of the CCL to improve its mechanical and heat resistance properties.

[0003] When the coating roller applies adhesive to the surface of the copper clad laminate, some of the adhesive tends to re-adhere to the surface of the coating roller due to the adhesive's viscosity. This results in uneven thickness on the coating roller surface and, consequently, uneven application of adhesive to the toughened copper clad laminate.

[0004] Therefore, a quantitative feeding adhesive applicator is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a quantitative feeding adhesive applicator to solve the above-mentioned problems, thereby improving the problem that some adhesive liquid easily re-adheres on the surface of the adhesive roller, resulting in uneven thickness on the surface of the adhesive roller.

[0006] This utility model achieves the above-mentioned objective through the following technical solution: a quantitative dispensing adhesive applicator, comprising: a conveyor frame, with an adhesive tank fixedly connected to the front end of the conveyor frame, a metering device fixedly connected to the top of the adhesive tank, an adhesive pump connected to the top of the adhesive tank, a fixed frame provided on the upper surface of the conveyor frame, two adhesive rollers rotatably connected to the inner side of the fixed frame, and a spray pipe fixedly connected to both sides of the fixed frame; and an adhesive cleaning mechanism disposed on the surface of the fixed frame; wherein the adhesive cleaning mechanism includes an adhesive collection frame fixedly connected to the inner side of the fixed frame, a scraper fixedly connected to the top of the adhesive collection frame, one side of the scraper contacting the surface of the adhesive roller, and equally spaced liquid guiding holes opened on the top of the scraper, a drain pipe connected to the bottom of the adhesive collection frame, the surface of the drain pipe penetrating and extending to the inner wall of the adhesive tank, and a liquid guiding plate fixedly connected to the inner wall of the adhesive collection frame. The adhesive plating roller is scraped off by a scraper, which is much more efficient than existing methods that leave adhesive residue on the roller surface, resulting in uneven thickness. This method ensures uniform thickness and even coating of the toughened copper-clad laminate. The adhesive plating roller is connected to a collection frame and a drain hole, allowing the scraped adhesive to flow into the collection frame in an orderly manner. The collection frame, drain plate, and drain pipe then guide the collected adhesive into an adhesive tank, allowing for the recycling of the scraped adhesive and reducing waste.

[0007] Preferably, an electric heater is fixedly connected to the inner wall of the liquid guiding plate, and the top of the liquid guiding plate forms an angle with the horizontal plane. The electric heater heats the surface of the liquid guiding plate, reducing the rate of adhesive solidification and ensuring that the adhesive in the collection frame flows smoothly back into the adhesive tank.

[0008] Preferably, the top of the scraper forms an angle with the horizontal plane.

[0009] Preferably, the drain pipe has an upper square funnel shape and a lower tubular shape.

[0010] Preferably, the lower tubular inner wall of the drain pipe is fixedly connected to an outlet pipe, and the lower end of the inner wall of the outlet pipe is slidably connected to a sealing rod.

[0011] Preferably, a protective cylinder is fixedly connected to the lower tubular inner wall of the drain pipe, and the surface of the sealing rod is slidably connected to the inner wall of the protective cylinder.

[0012] Preferably, a spring is fixedly connected to the bottom wall of the protective cylinder, and the top end of the spring is fixedly connected to the bottom end of the sealing rod. Through the spring, the protective cylinder, and the sealing rod, the lower end of the inner wall of the outlet pipe is sealed when no adhesive flows in, reducing the amount of air entering the adhesive tank.

[0013] Preferably, a filter screen, made of nylon, is fixedly connected to the inner wall of the drain pipe. The filter screen effectively filters the adhesive flowing into the drain pipe, preventing impurities from flowing into the adhesive tank along with the adhesive.

[0014] Preferably, a rubber ring is embedded in the top of the adhesive tank, and the lower part of the drain pipe is slidably connected to the inner side of the rubber ring. The rubber ring seals the connection between the drain pipe and the adhesive tank, thereby reducing the amount of air entering the adhesive tank.

[0015] Preferably, the inner wall of the liquid guiding hole is concave in an arc shape, and the upper surface of the protective cylinder is frustoconical.

[0016] The beneficial effects of this utility model are:

[0017] 1. By using a scraper, the adhesive adhering to the surface of the coating roller is scraped off. Compared with the existing method, which is inconvenient to clean the adhesive adhering to the surface of the coating roller in a timely manner, resulting in uneven thickness of the coating roller surface, this method cleans the adhesive adhering to the surface of the coating roller in a timely manner, ensuring uniform thickness of the coating roller surface and ensuring uniform coating of toughened copper clad laminate. Through the glue collection frame and liquid guide hole, the adhesive scraped off by the scraper flows into the glue collection frame in an orderly manner. Through the glue collection frame, liquid guide plate and liquid drain pipe, the adhesive collected in the glue collection frame is introduced into the glue tank, and the scraped adhesive is recycled and reused, reducing the waste of adhesive.

[0018] 2. The electric heater heats the surface of the liquid guide plate, slows down the solidification of the adhesive, and ensures that the adhesive in the collection frame flows smoothly back into the adhesive tank. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the glue collection frame of this utility model;

[0021] Figure 3 This is a schematic diagram of the adhesive removal mechanism of this utility model;

[0022] Figure 4 for Figure 3 A magnified view of A in the middle.

[0023] In the diagram: 1. Conveyor frame; 2. Adhesive tank; 3. Meter; 4. Adhesive pump; 5. Fixing frame; 6. Applying roller; 7. Spraying pipe; 8. Glue cleaning mechanism; 81. Glue collection frame; 82. Scraper; 83. Liquid guide hole; 84. Liquid guide plate; 85. Drain pipe; 86. Filter screen; 87. Discharge pipe; 88. Sealing rod; 89. Protective cylinder; 810. Spring; 811. Rubber ring; 812. Electric heater. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] In practical implementation: such as Figure 1-4 As shown, a metering adhesive application device includes: a conveyor frame 1, with an adhesive tank 2 fixedly connected to the front end of the conveyor frame 1, a metering device 3 fixedly connected to the top of the adhesive tank 2, an adhesive pump 4 connected to the top of the adhesive tank 2, a fixing frame 5 provided on the upper surface of the conveyor frame 1, two application rollers 6 rotatably connected to the inner side of the fixing frame 5, and a spray pipe 7 fixedly connected to both sides of the fixing frame 5; and an adhesive cleaning mechanism 8, which is disposed on the surface of the fixing frame 5; wherein, the adhesive cleaning mechanism 8 includes... The adhesive collection frame 81 is fixedly connected to the inner side of the fixing frame 5. A scraper 82 is fixedly connected to the top of the adhesive collection frame 81. One side of the scraper 82 contacts the surface of the coating roller 6. The top of the scraper 82 has equally spaced liquid guiding holes 83. The bottom of the adhesive collection frame 81 is connected to a drain pipe 85. The surface of the drain pipe 85 penetrates and extends to the inner wall of the adhesive tank 2. A guide plate 84 is fixedly connected to the inner wall of the adhesive collection frame 81. The drain pipe 85 is generally square funnel-shaped at the top and tubular at the bottom.

[0026] An electric push rod is fixedly connected to the top of the conveyor frame 1. The telescopic end of the electric push rod passes through the conveyor frame 1 and is fixedly connected to the top of the fixed frame 5. Two first servo motors are fixedly connected to the front end of the fixed frame 5. The output shaft of the first servo motor is fixedly connected to one end of the glue-applying roller 6. Pulleys are rotatably connected to both sides of the inner wall of the conveyor frame 1. A conveyor belt is connected between the surfaces of the two pulleys. A second servo motor is fixedly connected to the rear end of the conveyor frame 1. The output shaft of the second servo motor is fixedly connected to one end of one of the pulleys. Two cylinders are fixedly connected to the upper surface of the conveyor frame 1. A limit block is fixedly connected to one end of each cylinder. A distance sensor is provided on the upper surface of the conveyor frame 1. The distance sensor is located above the two limit blocks.

[0027] When applying adhesive to the toughened copper-clad laminate, the second servo motor is manually activated. The output shaft of the second servo motor drives the conveyor belt via a pulley. The electric push rod is manually activated, and its telescopic end moves down, causing the fixed frame 5 and the adhesive roller 6 to move down to a suitable height. Then, the electric push rod is manually deactivated, and the first servo motor is activated. The output shaft of the first servo motor rotates, causing the adhesive roller 6 to rotate. The toughened copper-clad laminate is placed on the conveyor belt, and the amount of adhesive delivered to the spray tube 7 is controlled by the metering device 3. When the distance sensor on the conveyor frame 1 detects that the toughened copper-clad laminate has been conveyed to the bottom of the adhesive roller 6, the adhesive pump 4 is automatically activated. The adhesive pump 4 draws a metered amount of adhesive from the adhesive tank 2 and delivers it to the spray tube 7. The spray tube 7 sprays adhesive onto the surface of the rotating adhesive roller 6, and the rotating adhesive roller 6 applies adhesive to the top of the moving toughened copper-clad laminate. The toughened copper-clad laminate with adhesive is then conveyed to the next production stage for preparation via the conveyor belt. When the toughened copper-clad laminate moves away from the coating roller 6, the distance sensor on the conveyor frame 1 transmits the detection signal to the adhesive pump 4, causing the adhesive pump 4 to automatically shut down. After applying adhesive to the toughened copper-clad laminate, the first and second servo motors can be manually turned off.

[0028] like Figure 4 As shown, an electric heater 812 is fixedly connected to the inner wall of the liquid guide plate 84. The top of the liquid guide plate 84 forms an angle with the horizontal plane. The top of the scraper plate 82 also forms an angle with the horizontal plane. A filter screen 86, which is made of nylon, is fixedly connected to the inner wall of the drain pipe 85. The scraper plate 82 is made of polyurethane.

[0029] Manually turn on the electric heater 812. After the liquid guide plate 84 reaches a suitable temperature, adjust the electric heater 812 to keep it in a heat-preserving state. The rotating glue-coating roller 6 applies glue to the surface of the toughened copper-clad laminate. When some glue re-adheres to a certain area of ​​the surface of the glue-coating roller 6, the glue scraper 82 scrapes it off. Because the glue scraper 82 is tilted downwards, the scraped glue flows quickly and orderly through the glue scraper 82 and the liquid guide hole 83 to the top of the liquid guide plate 84. Because the liquid guide plate 84 is tilted downwards and the surface temperature is suitable, the solidification of the glue is reduced and the glue flows quickly through the filter screen 86 and into the drain pipe 85, so that the glue in the drain pipe 85 flows into the glue tank 2.

[0030] like Figure 4As shown, an outlet pipe 87 is fixedly connected to the lower tubular inner wall of the drain pipe 85. A sealing rod 88 is slidably connected to the lower end of the inner wall of the outlet pipe 87. A protective cylinder 89 is fixedly connected to the lower tubular inner wall of the drain pipe 85. The surface of the sealing rod 88 is slidably connected to the inner wall of the protective cylinder 89. A spring 810 is fixedly connected to the bottom wall of the inner wall of the protective cylinder 89. The top end of the spring 810 is fixedly connected to the bottom end of the sealing rod 88. The inner wall of the liquid guiding hole 83 is concave and arc-shaped. The upper surface of the protective cylinder 89 is frustoconical. The glue collection frame 81, the liquid guiding plate 84, the drain pipe 85, and the sealing rod 88 are all stainless steel components.

[0031] When the adhesive in the drain pipe 85 reaches a certain weight, it will push the sealing rod 88 downward, causing the sealing rod 88 to squeeze the spring 810, opening the lower end of the inner wall of the outlet pipe 87, allowing the adhesive to flow into the adhesive tank 2. When there is no adhesive in the drain pipe 85, the elastic force of the spring 810 pushes the sealing rod 88 upward in the protective cylinder 89, sealing the lower end of the inner wall of the outlet pipe 87.

[0032] like Figure 3 As shown, a rubber ring 811 is embedded in the top of the glue tank 2, and the lower part of the drain pipe 85 is slidably connected to the inside of the rubber ring 811.

[0033] In use, the electric heater 812 is manually turned on to bring the liquid guide plate 84 to a suitable temperature. The electric heater 812 is then adjusted to a heat-preservation state. The rotating coating roller 6 applies adhesive to the surface of the toughened copper-clad laminate. When some adhesive re-adheres to a certain area of ​​the coating roller 6, the scraper 82 scrapes it off. Because the scraper 82 is tilted downwards, the scraped adhesive flows quickly and orderly through the scraper 82 and the liquid guide hole 83 to the top of the liquid guide plate 84. The surface temperature is suitable and the downward tilt reduces the solidification of the adhesive, allowing it to flow quickly through the filter screen 86 and into the drain pipe 85. When the adhesive in the drain pipe 85 reaches a certain weight, it will push the sealing rod 88 downward, causing the sealing rod 88 to squeeze the spring 810, opening the lower end of the inner wall of the outlet pipe 87, allowing the adhesive to flow into the adhesive tank 2. When there is no adhesive in the drain pipe 85, the elastic force of the spring 810 pushes the sealing rod 88 upward in the protective cylinder 89, sealing the lower end of the inner wall of the outlet pipe 87.

[0034] It should be noted that the conveyor frame 1, glue roller 6, glue spraying tube 7, glue tank 2, first servo motor, distance sensor, second servo motor, electric push rod, cylinder, electric heater 812, metering device 3, and glue pump 4 mentioned above are all devices with relatively mature existing technology. The specific models can be selected according to actual needs. At the same time, the first servo motor, distance sensor, second servo motor, electric push rod, cylinder, electric heater 812, metering device 3, and glue pump 4 can be powered by the built-in power supply or by the mains power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0035] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A metering adhesive application device, characterized in that, include: A conveyor frame (1) is fixedly connected to a glue tank (2) at its front end. A metering device (3) is fixedly connected to the top of the glue tank (2). A glue pump (4) is connected to the top of the glue tank (2). A fixing frame (5) is provided on the upper surface of the conveyor frame (1). Two glue-applying rollers (6) are rotatably connected to the inner side of the fixing frame (5). Both sides of the fixing frame (5) are fixedly connected to a glue spraying pipe (7). The adhesive removal mechanism (8) is disposed on the surface of the fixing frame (5); The adhesive cleaning mechanism (8) includes an adhesive collection frame (81) fixedly connected to the inside of the fixing frame (5). A scraper (82) is fixedly connected to the top of the adhesive collection frame (81). One side of the scraper (82) contacts the surface of the coating roller (6). The top of the scraper (82) is provided with equally spaced liquid guiding holes (83). The bottom of the adhesive collection frame (81) is connected to a drain pipe (85). The surface of the drain pipe (85) penetrates and extends to the inner wall of the adhesive tank (2). A liquid guiding plate (84) is fixedly connected to the inner wall of the adhesive collection frame (81).

2. The applicator for quantitative feeding of adhesive according to claim 1, characterized in that: An electric heater (812) is fixedly connected to the inner wall of the liquid guide plate (84), and the top of the liquid guide plate (84) forms an angle with the horizontal plane.

3. The applicator for quantitative feeding of adhesive according to claim 1, characterized in that: The top of the scraper (82) forms an angle with the horizontal plane.

4. The quantitative feeding adhesive applicator according to claim 1, characterized in that: The drain pipe (85) is generally square funnel-shaped at the top and tubular at the bottom.

5. The applicator for quantitative feeding of adhesive according to claim 1, characterized in that: The lower tubular inner wall of the drain pipe (85) is fixedly connected to an outlet pipe (87), and a sealing rod (88) is slidably connected to the lower end of the inner wall of the outlet pipe (87).

6. The applicator for quantitative feeding of adhesive according to claim 5, characterized in that: The lower tubular inner wall of the drain pipe (85) is fixedly connected to a protective cylinder (89), and the surface of the sealing rod (88) is slidably connected to the inner wall of the protective cylinder (89).

7. The applicator for quantitative feeding of adhesive according to claim 6, characterized in that: A spring (810) is fixedly connected to the bottom wall of the inner wall of the protective cylinder (89), and the top end of the spring (810) is fixedly connected to the bottom end of the sealing rod (88).

8. The applicator for quantitative feeding of adhesive according to claim 1, characterized in that: The inner wall of the drain pipe (85) is fixedly connected to a filter screen (86), which is a nylon component.

9. The applicator for quantitative feeding of adhesive according to claim 1, characterized in that: A rubber ring (811) is embedded in the top of the adhesive tank (2), and the lower part of the drain pipe (85) is slidably connected to the inside of the rubber ring (811).

10. A quantitative feeding adhesive coating device according to claim 7, characterized in that: The inner wall of the liquid guiding hole (83) is concave and arc-shaped, and the upper surface of the protective cylinder (89) is frustoconical.

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