Automatic cleaning device for glue nozzle of glue gun

Abstract

The utility model discloses a kind of automatic cleaning devices of glue nozzle of gluing machine, including the automatic cleaning device ontology between the automatic gluing machine glue nozzle assembly lifting zero and lower limit position, the automatic cleaning device ontology includes glue scraping structure base plate, the middle position of lower part in the front end of glue scraping structure base plate and both end position is equipped with scraper telescopic device, the scraper telescopic device of both ends is symmetrically arranged, and each the scraper telescopic device includes scraper telescopic cylinder and scraper.The utility model is arranged between glue nozzle lifting zero and lower limit position, and the front and both sides of glue nozzle are respectively equipped with telescopic scraper, when glue nozzle returns to specific position below glue nozzle standby zero, elastic scraper in cleaning device extends, pass through scraper in the ascending movement process of glue nozzle, make scraper and glue nozzle closely contact and remove residual glue, and scraper can also be self-cleaning by the closure of glue scraping block, reduce the possibility of glue nozzle residual glue product contamination reducing qualified rate.

Description

Technical Field

[0001] This utility model relates to the field of automated hollow energy-saving glass processing equipment manufacturing technology, specifically, to an automatic cleaning device for the nozzle of a glue applicator. Background Technology

[0002] With the rapid development of the insulated glass industry and the increasing global awareness of building energy conservation and environmental protection, the high-performance energy-saving characteristics of 4SG insulated glass enable it to meet the energy-saving material requirements of both new and renovated buildings. Whether in energy-efficient residential or public buildings, it provides better energy-saving effects, aligning with the trend of green and low-carbon development in the construction industry. The emergence of 4SG insulated glass has enriched the variety of insulated glass products, providing the market with a high-performance option beyond traditional spacer insulated glass. It meets the diverse needs of different customers for energy-saving, sealing, and durability performance of insulated glass, while also providing higher-quality glass solutions for high-end building projects. As a thermoplastic colloid, 4SG adhesive requires heating during application to improve its fluidity and adhesion. Therefore, residue or adhesion at the adhesive outlet (application nozzle) is unavoidable. If not cleaned promptly, this can damage the product in the next operating cycle. Current equipment often requires manual cleaning after several operating cycles, stopping the machine at a suitable cleaning height before resuming operation. This significantly reduces the production efficiency of automated production lines and increases labor costs.

[0003] Therefore, designing and developing an automatic nozzle cleaning device suitable for 4SG glue automatic coating machine is of great importance for improving the production efficiency and product quality stability of 4SG glue automatic coating equipment for insulating glass, and improving the automation level of the entire line. Utility Model Content

[0004] In view of the above-mentioned technical problems in related technologies, this utility model proposes an automatic cleaning device for glue applicator nozzles, which can overcome the above-mentioned deficiencies of the prior art.

[0005] To achieve the above-mentioned technical objectives, the technical solution of this utility model is implemented as follows:

[0006] An automatic cleaning device for a glue applicator nozzle includes an automatic cleaning device body disposed between the zero position and the lower limit position of the nozzle assembly of the automatic glue applicator. The automatic cleaning device body includes a scraper structure base plate. Scraper telescopic devices are respectively provided at the middle position and both ends of the lower part of the front end of the scraper structure base plate. The scraper telescopic devices at both ends are symmetrically arranged. Each scraper telescopic device includes a scraper telescopic cylinder and a scraper. The scraper telescopic cylinder located in the middle is movably connected to the corresponding scraper through an intermediate scraper seat, which passes through a hole in the scraper structure base plate. The scraper telescopic cylinders located at both ends are movably connected to their respective scrapers through their respective scraper seats. The scrapers at both ends are arranged opposite each other.

[0007] In use, each scraper moves to the rising path of the nozzle to be cleaned via its corresponding scraper telescopic cylinder, and the nozzle comes into close contact with the tip of the scraper during the rising process.

[0008] Furthermore, the automatic cleaning device body is located below the main conveying component of the automatic glue applicator, and the automatic cleaning device body is fixedly connected to the main frame of the automatic glue applicator.

[0009] Furthermore, the scraper telescopic cylinders are all located at the lower part of the adhesive scraping structure substrate. The scraper telescopic cylinders are fixedly connected to the adhesive scraping structure substrate through cylinder pads. The scraper telescopic cylinder located in the middle drives the corresponding scraper to extend to the front end of the adhesive scraping structure substrate. The scraper telescopic cylinders at both ends are symmetrically arranged, and the scraper telescopic cylinders at both ends drive the corresponding scrapers to extend relative to each other.

[0010] Furthermore, the scraper telescopic cylinders at both ends are vertically connected to one end of the scraper base, and the upper part of the other end of the scraper base is connected to the scraper shaft seat. The scraper shaft seat is vertically connected to the scraper seat through the scraper shaft. The upper part of the scraper seat is provided with the corresponding scraper. The scraper shaft is fitted with a scraper seat retaining ring. The scraper seat retaining ring is connected to one end of the torsion spring, and the other end of the torsion spring is connected to the scraper seat.

[0011] Furthermore, the scraper seat is either a left scraper seat or a right scraper seat.

[0012] Furthermore, a scraper block device is provided in front of the scraper telescopic device in the middle of the upper part of the scraper structure substrate. The scraper block device includes a scraper block lifting cylinder located on the upper part of the scraper structure substrate and a scraper block lifting bracket driven by the upper scraper block lifting cylinder. The upper part of the scraper block lifting bracket is connected to the middle part of the upper scraper block seat. The upper scraper block seat is slidably connected to the scraper block lifting guide shaft. The bottom of the scraper block lifting guide shaft is fixedly connected to the middle scraper block pad located on the upper part of the scraper structure substrate. The upper scraper block seat has a "U" structure. A scraper block is provided at the lower part of each horizontal side of the "U" structure of the upper scraper block seat. The upper part of the scraper structure substrate has a fixed scraper block corresponding to the scraper block. The closed position of the upper and lower scraper blocks is the position where the scraper and the nozzle are in close contact.

[0013] Furthermore, the upper seat of the scraper block includes a middle scraper block upper seat, a left scraper block upper seat, and a right scraper block upper seat.

[0014] Furthermore, the scraper is an ultra-thin, flexible scraper made of spring steel.

[0015] The beneficial effects of this utility model are as follows: This utility model is arranged between the zero position and the lower limit position of the nozzle lifting mechanism. Retractable scrapers are provided on the front and both sides of the nozzle. After the nozzle completes its coating cycle, it descends to a specific position below the nozzle standby zero position. The elastic scraper in the cleaning device extends, and the nozzle rises back to the standby zero position to prepare for the next cycle. During this process, the scraper passes through the nozzle, ensuring close contact between the scraper and the front and sides of the nozzle. As the nozzle passes through and disengages from the scraper, residual adhesive on the nozzle is scraped off. Furthermore, the scraper can achieve self-cleaning through the closing of the scraper block, reducing the possibility of residual adhesive on the nozzle contaminating the product and lowering the pass rate. This reduces the setup costs and resulting production line capacity reduction associated with manual adhesive removal and cleaning, improves the production efficiency and product quality stability of the 4SG glue automatic coating equipment for insulating glass, and enhances the automation level of the entire line. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the automatic cleaning device for the glue nozzle of a glue applicator according to an embodiment of the present utility model;

[0018] Figure 2 This is a front view of the automatic cleaning device for the glue applicator nozzle according to an embodiment of the present invention;

[0019] Figure 3 This is a top view of the automatic cleaning device for the glue applicator nozzle according to an embodiment of the present invention;

[0020] Figure 4 This is a positional view of the automatic cleaning device for the glue applicator nozzle according to an embodiment of the present invention during use;

[0021] In the diagram: 1. Scraper telescopic cylinder; 2. Cylinder pad; 3. Scraper base; 4. Scraper shaft seat; 5. Scraper shaft; 6. Left scraper seat; 7. Scraper seat retaining ring; 8. Torsion spring; 9. Scraper; 10. Scraper structure base plate; 11. Scraper block; 12. Middle scraper block pad; 13. Guide bearing; 14. Middle scraper block upper seat; 15. Left scraper block upper seat; 16. Right scraper block upper seat; 17. Scraper block lifting guide shaft; 18. Right scraper seat; 19. Middle scraper seat; 20. Scraper block lifting bracket; 21. Cylinder fixing screw; 22. Upper scraper block lifting cylinder; 23. Automatic glue applicator main frame; 24. Automatic glue applicator head assembly; 25. Automatic glue applicator nozzle assembly; 26. Automatic glue applicator main unit conveying assembly; 27. Automatic cleaning device body. Detailed Implementation

[0022] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0023] like Figure 1-4 As shown in the embodiment of this utility model, an automatic cleaning device for a glue applicator nozzle includes an automatic cleaning device body 27 disposed between the zero position and the lower limit position of the automatic glue applicator nozzle assembly 25. The automatic cleaning device body 27 includes a scraper structure base plate 10. Scraper telescopic devices are respectively provided at the middle position and both ends of the lower part of the front end of the scraper structure base plate 10. The scraper telescopic devices at both ends are symmetrically arranged. Each scraper telescopic device includes a scraper telescopic cylinder 1 and a scraper 9. The scraper telescopic cylinder 1 located in the middle is movably connected to the corresponding scraper 9 through an intermediate scraper seat 19. The intermediate scraper seat 19 passes through the hole of the scraper structure base plate 10. The scraper telescopic cylinders 1 located at both ends are movably connected to their respective corresponding scrapers 9 through their respective scraper seats. The scrapers 9 at both ends are arranged opposite each other.

[0024] In use, each of the scrapers 9 moves to the rising path of the nozzle to be cleaned via its corresponding scraper telescopic cylinder 1, and the nozzle comes into close contact with the tip of the scraper 9 during the rising process.

[0025] In this embodiment, the automatic cleaning device body 27 is located below the automatic glue applicator main body conveying component 26, and the automatic cleaning device body 27 is fixedly connected to the automatic glue applicator main body frame 23.

[0026] In this embodiment, the scraper telescopic cylinders 1 are all located at the lower part of the scraping structure substrate 10. The scraper telescopic cylinders 1 are fixedly connected to the scraping structure substrate 10 through the cylinder pad 2. The scraper telescopic cylinder 1 located in the middle drives the corresponding scraper 9 to extend to the front end of the scraping structure substrate 10. The scraper telescopic cylinders 1 at both ends are symmetrically arranged, and the scraper telescopic cylinders 1 at both ends drive the corresponding scraper 9 to extend relative to each other.

[0027] In this embodiment, the scraper telescopic cylinders 1 at both ends are vertically connected to one end of the scraper base 3, and the upper part of the other end of the scraper base 3 is connected to the scraper shaft seat 4. The scraper shaft seat 4 is vertically connected to the scraper seat through the scraper shaft 5. The upper part of the scraper seat is provided with the corresponding scraper 9. The scraper shaft 5 is fitted with a scraper seat retaining ring 7. The scraper seat retaining ring 7 is connected to one end of the torsion spring 8, and the other end of the torsion spring 8 is connected to the scraper seat.

[0028] In this embodiment, the scraper seat is either the left scraper seat 6 or the right scraper seat 18.

[0029] In this embodiment, a scraper block device is provided in front of the scraper telescopic device in the middle of the upper part of the scraper structure substrate 10. The scraper block device includes a scraper block lifting cylinder 22 located on the upper part of the scraper structure substrate 10 and a scraper block lifting bracket 20 driven by the upper scraper block lifting cylinder 22. The upper part of the scraper block lifting bracket 20 is connected to the middle part of the upper scraper block seat. The upper scraper block seat is slidably connected to the scraper block lifting guide shaft 17. The bottom of the scraper block lifting guide shaft 17 is fixedly connected to the middle scraper block pad 12 located on the upper part of the scraper structure substrate 10. The upper scraper block seat has a "U" structure. Each horizontal side of the "U" structure of the upper scraper block seat is provided with a scraper block 11 at the bottom. The upper part of the scraper structure substrate 10 is provided with a fixed scraper block corresponding to the scraper block 11. The closed position of the upper and lower scraper blocks 11 is the position where the scraper 9 and the nozzle are in close contact.

[0030] In this embodiment, the upper seat of the scraper block includes a middle scraper block upper seat 14, a left scraper block upper seat 15, and a right scraper block upper seat 16.

[0031] In this embodiment, the scraper 9 is an ultra-thin, flexible scraper made of spring steel.

[0032] The front end of the adhesive scraping structure substrate 10 is provided with two comb teeth, and the two comb teeth form a U-shaped groove at the front end of the hole. The U-shaped groove allows the adhesive nozzle to pass through. Corresponding fixed adhesive scraping blocks are provided on the three sides of the U-shaped groove, and corresponding scraper telescopic devices are provided on both sides of the U-shaped groove.

[0033] To facilitate understanding of the above-mentioned technical solutions of this utility model, the following detailed description of the above-mentioned technical solutions of this utility model is provided through specific usage methods.

[0034] In practical use, according to the automatic nozzle cleaning device for a glue applicator described in this utility model, for the requirement that automatic cleaning of the nozzle of a 4SG glue applicator does not affect the glue application cycle, the E4SG nozzle automatic cleaning component is arranged below the main conveyor wheel (i.e., the bottom edge of the glass conveyor), between the nozzle lifting zero position and the lower limit position; in front of and on both sides of the nozzle component of the 4SG glue automatic applicator where residual glue may exist, there are three sets of retractable ultra-thin flexible scrapers 9 made of spring steel driven by scraper telescopic cylinder 1. After the nozzle completes the glue application cycle, it descends to a specific position below the nozzle standby zero position and below the cleaning structure. The scraper telescopic cylinder 1 in the cleaning device extends, so that the tip of the ultra-thin flexible scraper 9 is on the rising path of the surface to be cleaned. The upper scraper block lifting cylinder 22 The scraper block 11, which can be raised and lowered, descends and closes along the scraper block lifting guide shaft 17. The scraper blocks 11 on both the upper and lower sides are in close contact with the two sides of the scraper 9. The nozzle moves upward and returns to the standby zero position to prepare for the next work cycle. During this process, it passes through the scraper 9. The scraper 9 is fixed on the left scraper seat 6 / right scraper seat 18, which can swing around the scraper rotating shaft 5. Under the action of the torsion spring 8, the left scraper seat 6 / right scraper seat 18 can make the scraper 9 flexibly and closely contact the surface to be cleaned of the nozzle assembly of the 4SG glue automatic applicator. As the nozzle rises and passes through and disengages from the scraper, the residual glue on the nozzle will be scraped off and fall off, realizing the automatic cleaning of the residual glue on the nozzle.

[0035] For self-cleaning of the scraper, a scraping block is set on the upper and lower surfaces of each scraper 9. One scraping block is fixed in position, while the other scraping block 11 can move up and down to achieve the opening and closing of the scraping block for self-cleaning. When the scraper opens, the gap widens, allowing the scraper 9 to extend forward to clean the nozzle under the drive of the scraper telescopic cylinder 1. When the two scrapers close, they are in close contact with the two sides of the scraper. After the scraper 9 has finished scraping off the residual glue from the nozzle, the scraper telescopic cylinder 1 drives the scraper 9 to retract and retract, pulling it out from between the closed scraping blocks 11. Any residual glue on the scraper 9 will be removed again by the scraping blocks 11, achieving automatic cleaning of the scraper. The upper scraping block 22 lifting cylinder drives the vertically movable scraping block 11 to rise and open along the lifting guide shaft of the scraping block 17 to enter the next cleaning waiting cycle.

[0036] This device addresses the need for automatic nozzle cleaning on 4SG glue applicators without disrupting the glue application cycle. Positioned between the nozzle's zero and lower limit positions, it features retractable, ultra-thin, flexible scrapers made of spring steel on the front and sides where residual glue may remain. After completing a glue application cycle, the scrapers descend to a specific position below the nozzle's standby zero position. The elastic scrapers extend, and the nozzle rises back to the standby zero position in preparation for the next cycle. As the nozzle passes the scrapers, they ensure close contact with the front and sides of the nozzle. As the nozzle passes and disengages from the scrapers, residual glue is scraped away.

[0037] For the self-cleaning of the scraper, a scraper blade is installed on the upper and lower surfaces of each scraper. One scraper blade is fixed in position, while the other scraper blade can move up and down to open and close the scraper blades for self-cleaning the tube sheet. When the scraper blades are open, the gap widens, allowing the scraper blade to extend forward to clean the nozzle. When the two scraper blades are closed, they are in close contact with the two sides of the scraper blade, forming a gap that only allows the scraper blade to move back and forth. During the process of the scraper blade retracting and retracting after scraping off the residual glue from the nozzle, the residual glue on the scraper blade will be removed again by the scraper blade to achieve automatic cleaning of the scraper blade.

[0038] In summary, by utilizing the above-mentioned technical solution of this utility model, and by arranging this utility model between the zero position and the lower limit position of the nozzle, with retractable scrapers provided on the front and both sides of the nozzle, after the nozzle completes the glue application cycle, it descends to a specific position below the nozzle standby zero position. The elastic scraper in the cleaning device extends, and the nozzle moves upward back to the standby zero position to prepare for the next operation cycle. During this process, the scraper passes through the nozzle, making close contact between the scraper and the front and both sides of the nozzle. As the nozzle passes through and disengages from the scraper, the residual glue on the nozzle is scraped off. Moreover, the scraper can also achieve self-cleaning through the closing of the scraper block, reducing the possibility of residual glue on the nozzle damaging the product and reducing the pass rate, reducing the setup cost and resulting production line capacity reduction caused by manual glue removal and cleaning, improving the production efficiency and product quality stability of the 4SG glue automatic glue application equipment for insulating glass, and improving the automation level of the entire line.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic cleaning device for the nozzle of a glue applicator, characterized in that, The automatic cleaning device body (27) is set between the lifting zero position and the lower limit position of the nozzle assembly (25) of the automatic glue applicator. The automatic cleaning device body (27) includes a scraper structure base plate (10). The scraper structure base plate (10) is provided with a scraper telescopic device at the middle position of the lower front end and at both ends. The scraper telescopic devices at both ends are symmetrically arranged. Each scraper telescopic device includes a scraper telescopic cylinder (1) and a scraper (9). The scraper telescopic cylinder (1) located in the middle is movably connected to the corresponding scraper (9) through the middle scraper seat (19). The middle scraper seat (19) passes through the hole of the scraper structure base plate (10). The scraper telescopic cylinders (1) located at both ends are movably connected to their respective scrapers (9) through their respective scraper seats. The scrapers (9) at both ends are arranged opposite each other. In use, each scraper (9) moves to the rising path of the nozzle to be cleaned through its corresponding scraper telescopic cylinder (1), and the nozzle comes into close contact with the tip of the scraper (9) during the rising process.

2. The automatic cleaning device for the glue applicator nozzle according to claim 1, characterized in that, The automatic cleaning device body (27) is located below the automatic glue applicator main body transmission component (26), and the automatic cleaning device body (27) is fixedly connected to the automatic glue applicator main body frame (23).

3. The automatic cleaning device for the glue applicator nozzle according to claim 1, characterized in that, The scraper telescopic cylinders (1) are all located at the lower part of the scraper structure substrate (10). The scraper telescopic cylinders (1) are fixedly connected to the scraper structure substrate (10) through the cylinder pad (2). The scraper telescopic cylinder (1) located in the middle drives the corresponding scraper (9) to extend to the front end of the scraper structure substrate (10). The scraper telescopic cylinders (1) at both ends are symmetrically arranged, and the scraper telescopic cylinders (1) at both ends drive the corresponding scraper (9) to extend relative to each other.

4. The automatic cleaning device for the glue applicator nozzle according to claim 1, characterized in that, The scraper telescopic cylinders (1) at both ends are vertically connected to one end of the scraper base (3). The upper part of the other end of the scraper base (3) is connected to the scraper shaft seat (4). The scraper shaft seat (4) is vertically connected to the scraper seat through the scraper shaft (5). The upper part of the scraper seat is provided with the corresponding scraper (9). The scraper shaft (5) is sleeved with a scraper seat retaining ring (7). The scraper seat retaining ring (7) is connected to one end of the torsion spring (8). The other end of the torsion spring (8) is connected to the scraper seat.

5. The automatic cleaning device for the glue applicator nozzle according to claim 4, characterized in that, The scraper seat is either a left scraper seat (6) or a right scraper seat (18).

6. The automatic cleaning device for the glue applicator nozzle according to any one of claims 1-5, characterized in that, The upper part of the adhesive scraping structure substrate (10) is provided with an adhesive scraping block device in front of the scraper telescopic device in the middle part. The adhesive scraping block device includes a component located on the adhesive scraping structure substrate (10). The upper scraper block lifting cylinder (22) and the scraper block lifting bracket (20) driven by the upper scraper block lifting cylinder (22) are connected to the middle of the upper scraper block seat. The upper scraper block seat is slidably connected to the scraper block lifting guide shaft (17). The bottom of the scraper block lifting guide shaft (17) is fixedly connected to the middle scraper block pad (12) located on the upper part of the scraper block structure base plate (10). The upper scraper block seat is a "U" structure. Each horizontal side of the "U" structure of the upper scraper block seat is provided with a scraper block (11). The upper part of the scraper block structure base plate (10) is provided with a fixed scraper block corresponding to the scraper block (11). The closed position of the upper and lower scraper blocks (11) is the position where the scraper (9) and the nozzle are in close contact.

7. The automatic cleaning device for the glue applicator nozzle according to claim 6, characterized in that, The scraper block seat includes a middle scraper block seat (14), a left scraper block seat (15), and a right scraper block seat (16).

8. The automatic cleaning device for the glue applicator nozzle according to claim 6, characterized in that, The scraper (9) is an ultra-thin and flexible scraper made of spring steel.

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