Automatic gluing machine for flap wheel

Abstract

The utility model relates to the technical field of flap wheel processing, and discloses an automatic flap wheel gluing machine which comprises a supporting table, the top of the supporting table is fixedly connected with a supporting frame, the top of the supporting table is provided with a containing disc, the side wall of the containing disc is movably connected with four clamping plates arranged in a circumferential mode, and the clamping plates are fixedly connected with the supporting frame. The clamping plate is used for clamping and fixing a workpiece from four directions, the clamping plate is in an L shape, one end of the clamping plate penetrates to the inner side of the containing disc, and a driving assembly is arranged on the inner side of the containing disc. According to the gluing machine, the four clamping plates are used for clamping and fixing a workpiece from four directions, it is ensured that the fixed workpiece is strictly located in the middle of the containing disc, the problem that in the follow-up gluing process, due to workpiece deviation, a glue layer is not uniform is effectively solved, and therefore the phenomenon that the strength of a flap wheel is inconsistent due to the thickness difference of the glue layer is prevented, and the service life of the flap wheel is prolonged. And the fracture risk caused by uneven stress during high-speed rotary grinding is reduced, and the potential safety hazard in use is eliminated.

Description

Technical Field

[0001] This utility model relates to the field of flap wheel processing technology, and in particular to an automatic flap wheel glue applicator. Background Technology

[0002] A flap wheel, also known as a high-strength elastic grinding disc, is made of plastic or fiber mesh covered with abrasive cloth blades. It is mainly used for grinding and polishing in industrial production. Flap wheels can be used for rust removal, paint removal, deburring, and weld grinding on various surfaces of metal and non-metal materials in shipbuilding, automotive, aviation, machinery, instrumentation, bridge and construction industries, as well as furniture. During the processing of flap wheels, adhesive needs to be applied to their surface, so adhesive application equipment is required.

[0003] For example, Chinese patent CN221159969U discloses a high-stability flap wheel adhesive applicator, which includes a base plate. A clamping and rotating assembly is installed at the center of the base plate surface. A mounting frame is provided on the outer side of the base plate. An insulated storage cylinder is fixedly installed at the center of the top of the mounting frame. An adjusting conveying assembly is installed at the bottom of the insulated storage cylinder. This device, by using the clamping and rotating assembly, can utilize a dual-axis motor, in conjunction with a screw and the threaded drive of the clamping plates, to flexibly adjust the distance between the two clamping plates. This allows for stable clamping of flap wheels of different specifications. With the addition of a stepper motor and an auxiliary seat, it can also achieve the purpose of rotary adhesive application.

[0004] Regarding the above and existing related technologies, the inventors believe that the following defects often exist: the device clamps and fixes the workpiece symmetrically from both sides, but the workpiece may shift position after being placed on the rotating disk, resulting in it not being in the center of the rotating disk. When the workpiece shifts, the amount of glue applied by the glue applicator on the workpiece surface may be uneven, resulting in inconsistent overall strength of the flap wheel. During high-speed rotation and grinding, it is prone to breakage due to uneven force, posing a safety hazard. Utility Model Content

[0005] The technical problem to be solved by this utility model is that the existing technology has the disadvantage that the position of the fixed workpiece is offset behind the rotating disk, resulting in uneven distribution of glue on the workpiece. To this end, we propose an automatic glue applicator with a flap wheel.

[0006] To achieve the above objectives, this application adopts the following technical solution: an automatic louvered glue applicator, comprising a support platform, a support frame fixedly connected to the top of the support platform, a placement tray on the top of the support platform, four circumferentially arranged clamping plates movably connected to the side wall of the placement tray for clamping and fixing the workpiece from four directions, the clamping plates being L-shaped, one end of the clamping plates extending through the inner side of the placement tray, a driving assembly on the inner side of the placement tray for driving the four clamping plates to synchronously contract or open, a cleaning scraper on the inner side of the support frame for scraping and cleaning the glue application surface of the workpiece, a fan fixedly connected to the top surface of the inner side of the support frame, a first hose fixedly connected to the air outlet of the fan, an air jet head fixedly connected to the air outlet of the first hose, the air jet head corresponding to the cleaning scraper for blowing away scraped impurities, and a glue application assembly on the top of the support frame for applying glue to the workpiece.

[0007] Preferably, the driving assembly includes a first motor fixedly connected to the middle of the bottom surface of the inner wall of the placement tray. The shaft of the first motor is fixedly connected to a connecting plate. The connecting plate has four guide grooves arranged in a circle. Each clamping plate and the connecting plate are provided with a horizontally arranged connecting block. Each connecting block has a connecting groove at both ends. A first connecting shaft is fixedly connected in the connecting groove on the side of the connecting block near the connecting plate. A second connecting shaft is fixedly connected in the connecting groove on the side of the connecting block near the clamping plate. The second connecting shaft is movably sleeved on one end of the clamping plate. The first connecting shaft is movably connected in an adjacent guide groove.

[0008] Preferably, a connecting frame is fixedly connected to the bottom surface of the support platform, and a second motor is fixedly connected to the top surface inside the connecting frame. The shaft of the second motor passes through the support platform and is fixedly connected to the bottom surface of the placement tray, for driving the placement tray to rotate.

[0009] Preferably, the glue applicator includes a glue bucket fixedly fitted onto the top of the support frame, a material pump fixedly connected to the bottom of the glue bucket, a second hose fixedly connected to the discharge end of the material pump, and a glue applicator head fixedly connected to the discharge end of the second hose.

[0010] Preferably, a horizontally arranged first telescopic cylinder is fixedly connected to the inner side wall of the support frame, and the output end of the first telescopic cylinder is fixedly connected to the glue applicator head to control the horizontal movement of the glue applicator head.

[0011] Preferably, a vertically arranged second telescopic cylinder is fixedly connected to the top of the inner side of the support frame, and a protective cover is fixedly connected to the output end of the second telescopic cylinder. The glue applicator is sleeved inside the protective cover to reduce the impact of the airflow blown out by the jet nozzle on the glue liquid.

[0012] Preferably, a fixing block is fixedly connected to the jet head, and a connecting rod is fixedly connected to the cleaning scraper. Both the fixing block and the connecting rod are fixedly connected to the protective cover, so as to allow the jet head and the cleaning scraper to move up and down with the protective cover.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] In this invention, a drive assembly drives four circumferentially arranged clamping plates to clamp and fix the workpiece from four directions, ensuring that the workpiece is strictly located in the center of the placement tray after being fixed. This effectively avoids uneven glue layer caused by workpiece displacement during subsequent glue application, thereby preventing inconsistent strength of the flap wheel due to differences in glue layer thickness, reducing the risk of breakage caused by uneven force during high-speed rotation grinding, and eliminating safety hazards.

[0015] In this invention, after the workpiece is positioned, the air jet head and the cleaning scraper move down synchronously. The bottom of the cleaning scraper contacts the top adhesive surface of the workpiece, and the nozzle of the air jet head is horizontally aligned with the adhesive surface. As the workpiece rotates, the bottom of the cleaning scraper continuously scrapes the adhesive surface, while the air jet head sprays air to blow away the scraped impurities from the workpiece surface. The scraping and airflow combined cleaning mechanism can thoroughly remove impurities from the adhesive surface, prevent foreign objects from affecting the adhesive adhesion effect, and ensure the production quality of the flap wheel. Attached Figure Description

[0016] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure for placing the tray in this utility model;

[0019] Figure 3 This is a cross-sectional view of the structure for placing the tray in this utility model;

[0020] Figure 4 This is a schematic diagram of the drive component in this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the cleaning scraper, the air jet head, and the protective cover in this utility model;

[0022] Figure 6 This is a schematic diagram of the glue application component in this utility model.

[0023] Legend: 1. Support platform; 2. Support frame; 3. Placement tray; 4. Clamping plate; 5. Cleaning scraper; 6. Fan; 7. First hose; 8. Air nozzle; 9. First motor; 10. Connecting plate; 11. Guide groove; 12. Connecting block; 13. First connecting shaft; 14. Second connecting shaft; 15. Connecting frame; 16. Second motor; 17. Glue bucket; 18. Feed pump; 19. Second hose; 20. Glue applicator; 21. First telescopic cylinder; 22. Second telescopic cylinder; 23. Protective cover; 24. Fixing block; 25. Connecting rod. Detailed Implementation

[0024] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0025] Reference Figure 1-6 As shown, this utility model provides a technical solution: an automatic louvered glue applicator, including a support platform 1, a support frame 2 fixedly connected to the top of the support platform 1, a placement tray 3 on the top of the support platform 1, four circumferentially arranged clamping plates 4 movably connected to the side wall of the placement tray 3 for clamping and fixing the workpiece from four directions, the clamping plates 4 are L-shaped, one end of the clamping plates 4 extends through to the inside of the placement tray 3, a driving assembly is provided on the inside of the placement tray 3 for driving the four clamping plates 4 to synchronously contract or open, a cleaning scraper 5 is provided on the inside of the support frame 2 for scraping and cleaning the glue application surface of the workpiece, a fan 6 is fixedly connected to the top surface of the inside of the support frame 2, a first hose 7 is fixedly connected to the air outlet of the fan 6, a jet nozzle 8 is fixedly connected to the air outlet of the first hose 7, the jet nozzle 8 corresponds to the cleaning scraper 5 and is used to blow away the scraped impurities, and a glue application assembly is provided on the top of the support frame 2 for applying glue to the workpiece.

[0026] To enable the four clamping plates 4 to open outward or retract inward synchronously, the drive assembly includes a first motor 9 fixedly connected to the center of the bottom surface of the inner wall of the placement tray 3. The shaft of the first motor 9 is fixedly connected to a connecting tray 10. The connecting tray 10 has four circumferentially arranged guide grooves 11. A horizontally arranged connecting block 12 is provided between each clamping plate 4 and the connecting tray 10. Each connecting block 12 has connecting grooves at both ends. A first connecting shaft 13 is fixedly connected to the connecting groove on the side of the connecting block 12 closest to the connecting tray 10. The connecting block 12 is located near the clamping plate 4... A second connecting shaft 14 is fixedly connected in the connecting groove on the side. The second connecting shaft 14 is movably sleeved on one end of the clamping plate 4. The first connecting shaft 13 is movably connected in the adjacent guide groove 11. When the connecting plate 10 rotates, the first connecting shaft 13 is driven to move through the guide groove 11. When the first connecting shaft 13 moves, it will drive the connecting block 12 to move and rotate. When the connecting block 12 moves and rotates, it will pull the clamping plate 4 to retract towards the inside of the placement plate 3. Conversely, when the connecting plate 10 rotates in the opposite direction, the connecting block 12 will push the clamping plate 4 to unfold towards the outside of the placement plate 3.

[0027] In order to enable the placement tray 3 to rotate, a connecting frame 15 is fixedly connected to the bottom surface of the support platform 1, and a second motor 16 is fixedly connected to the top surface of the inner side of the connecting frame 15. The shaft of the second motor 16 passes through the support platform 1 and is fixedly connected to the bottom surface of the placement tray 3, and is used to drive the placement tray 3 to rotate. When the workpiece is fixed on the placement tray 3, the second motor 16 drives the placement tray 3 to rotate, so that the workpiece on the top surface of the placement tray 3 can rotate.

[0028] To apply adhesive to the top surface of the workpiece, the adhesive application assembly includes a glue tank 17 fixedly fitted onto the top of the support frame 2. A feed pump 18 is fixedly connected to the bottom of the glue tank 17. A second hose 19 is fixedly connected to the outlet end of the feed pump 18. An adhesive application head 20 is fixedly connected to the outlet end of the second hose 19. The adhesive application head 20 is aligned vertically with the edge of the top surface of the workpiece. The feed pump 18 draws out the adhesive from the glue tank 17 and inputs the adhesive into the adhesive application head 20 through the second hose 19. The adhesive application head 20 then discharges the adhesive onto the top surface of the workpiece.

[0029] In order to adjust the glue applicator 20 according to the diameter of the workpiece, a horizontally arranged first telescopic cylinder 21 is fixedly connected to the inner side wall of the support frame 2. The output end of the first telescopic cylinder 21 is fixedly connected to the glue applicator 20 and is used to control the horizontal movement of the glue applicator 20. The glue applicator 20 can be pushed to move horizontally through the first telescopic cylinder 21, so that the glue applicator 20 moves closer to or away from the center of the placement tray 3, thereby adapting to workpieces of different diameters.

[0030] To reduce the impact of the blown airflow on the adhesive, a vertically arranged second telescopic cylinder 22 is fixedly connected to the top of the inner side of the support frame 2. A protective cover 23 is fixedly connected to the output end of the second telescopic cylinder 22. The dispensing head 20 is sleeved inside the protective cover 23 to reduce the impact of the airflow blown out by the jet nozzle 8 on the adhesive. The protective cover 23 can block most of the airflow sprayed out by the jet nozzle 8 and flowing below the dispensing head 20, thereby reducing the impact of the airflow on the adhesive and preventing the airflow from blowing the adhesive off the workpiece.

[0031] To prevent the jet nozzle 8 and cleaning scraper 5 from interfering with the removal of the workpiece from the placement box on the placement tray 3, a fixing block 24 is fixedly connected to the jet nozzle 8, and a connecting rod 25 is fixedly connected to the cleaning scraper 5. Both the fixing block 24 and the connecting rod 25 are fixedly connected to the protective cover 23, so that the jet nozzle 8 and cleaning scraper 5 can move up and down with the protective cover 23. After the jet nozzle 8 and cleaning scraper 5 rise, the distance between them and the placement tray 3 is sufficient to easily remove the workpiece from the top surface of the placement tray 3. When the workpiece rotates 180°, the glue applicator 20 can discharge the glue onto the glue applicator surface of the workpiece. At this time, the cleaned part of the glue applicator surface of the workpiece is located below the glue applicator 20. When the workpiece continues to rotate another 180°, the glue applicator surface of the workpiece is completely cleaned, but the part of the workpiece with glue adhering to it has not yet rotated to the point of being separated from the cleaning scraper 5. At this time, the second telescopic cylinder 22 pulls the protective cover 23 to rise, causing the cleaning scraper 5 to rise, preventing the cleaning scraper 5 from contacting the glue on the workpiece if the workpiece continues to rotate.

[0032] Working principle: When the workpiece is not placed on the placement tray 3, the second telescopic cylinder 22 is in the retracted state. At this time, the protective cover 23, the air jet head 8, and the cleaning scraper 5 are all suspended at a high position above the placement tray 3. During operation, the user places the workpiece in the placement tray 3, so that the workpiece is in the clamping space formed by the four clamping plates 4. Then, the first motor 9 is started to drive the connecting plate 10 to rotate. The connecting plate 10 drives the first connecting shaft 13 to move through the guide groove 11, which in turn drives the connecting block 12 to pull the clamping plates 4 to retract towards the center. When the workpiece is misaligned on the placement tray 3, the four clamping plates 4 will contact the workpiece one after another. The clamping plate 4 that contacts the workpiece first will push the workpiece to move towards the center of the placement tray 3. Then, the other clamping plates 4 will then contact the workpiece from the other side until all four clamping plates 4 contact the workpiece at the same time, and finally accurately position the workpiece in the center area of ​​the top surface of the placement tray 3. This four-way synchronous clamping design ensures that the workpiece is precisely positioned in the center of the placement tray 3 after being fixed, effectively avoiding uneven glue layer caused by workpiece displacement during subsequent glue application. This prevents inconsistent strength of the flaps due to differences in glue layer thickness, reduces the risk of breakage caused by uneven stress during high-speed rotational grinding, and eliminates safety hazards. After the workpiece is positioned, the second telescopic cylinder 22 pushes the protective cover 23 down, which, through the fixing block 24 and connecting rod 25, drives the jet head 8 and cleaning scraper 5 to move down synchronously. The bottom of the cleaning scraper 5 contacts the glue application surface on the top of the workpiece, and the nozzle of the jet head 8 is horizontally aligned with the glue application surface. At this time, the second motor 16 is started to drive the placement tray 3 to rotate, and the workpiece rotates accordingly. During the rotation, the bottom of the cleaning scraper 5 continuously scrapes the glue application surface, while the fan 6 starts to supply air to the first hose 7. The airflow is sprayed out through the jet head 8, blowing away the scraped impurities from the workpiece surface. This scraping and airflow coordinated cleaning mechanism can thoroughly remove impurities from the glue application surface, prevent foreign objects from affecting the glue adhesion effect, and ensure the production quality of the flaps.

[0033] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. An automatic glue applicator with a flap wheel, characterized in that, The device includes a support platform, a support frame fixedly connected to the top of the support platform, a placement tray on the top of the support platform, and four circumferentially arranged clamping plates movably connected to the side walls of the placement tray for clamping and fixing the workpiece from four directions. The clamping plates are L-shaped, with one end extending through the inside of the placement tray. A drive assembly is located inside the placement tray to drive the four clamping plates to synchronously contract or open. A cleaning scraper is located inside the support frame for scraping and cleaning the adhesive-coated surface of the workpiece. A fan is fixedly connected to the top surface inside the support frame, and a first hose is fixedly connected to the air outlet of the fan. An air jet is fixedly connected to the air outlet of the first hose, and the air jet corresponds to the cleaning scraper for blowing away scraped impurities. An adhesive-coating assembly is located on the top of the support frame for applying adhesive to the workpiece.

2. The automatic glue applicator for flap wheels according to claim 1, characterized in that: The drive assembly includes a first motor fixedly connected to the center of the bottom surface of the inner wall of the placement plate. The shaft of the first motor is fixedly connected to a connecting plate. The connecting plate has four guide grooves arranged in a circle. Each clamping plate and the connecting plate are provided with a horizontally arranged connecting block. Each connecting block has a connecting groove at both ends. A first connecting shaft is fixedly connected in the connecting groove on the side of the connecting block near the connecting plate. A second connecting shaft is fixedly connected in the connecting groove on the side of the connecting block near the clamping plate. The second connecting shaft is movably sleeved on one end of the clamping plate. The first connecting shaft is movably connected in the adjacent guide groove.

3. The automatic glue applicator for flap wheels according to claim 1, characterized in that: A connecting frame is fixedly connected to the bottom surface of the support platform, and a second motor is fixedly connected to the top surface inside the connecting frame. The shaft of the second motor passes through the support platform and is fixedly connected to the bottom surface of the placement tray, and is used to drive the placement tray to rotate.

4. The automatic glue applicator for flap wheels according to claim 1, characterized in that: The glue applicator includes a glue bucket fixedly fitted onto the top of the support frame. A material pump is fixedly connected to the bottom of the glue bucket. A second hose is fixedly connected to the discharge end of the material pump. A glue applicator head is fixedly connected to the discharge end of the second hose.

5. The automatic glue applicator for flap wheels according to claim 1, characterized in that: A horizontally arranged first telescopic cylinder is fixedly connected to the inner side wall of the support frame. The output end of the first telescopic cylinder is fixedly connected to the glue applicator head and is used to control the horizontal movement of the glue applicator head.

6. The automatic glue applicator for flap wheels according to claim 4, characterized in that: A vertically arranged second telescopic cylinder is fixedly connected to the top of the inner side of the support frame. A protective cover is fixedly connected to the output end of the second telescopic cylinder. The glue applicator is sleeved inside the protective cover to reduce the impact of the airflow blown out by the jet nozzle on the glue liquid.

7. The automatic glue applicator for flap wheels according to claim 1, characterized in that: A fixing block is fixedly connected to the jet head, and a connecting rod is fixedly connected to the cleaning scraper. Both the fixing block and the connecting rod are fixedly connected to the protective cover, so that the jet head and the cleaning scraper can move up and down with the protective cover.

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