Full-automatic glue sprayer with self-cleaning spray head

Abstract

The invention discloses a full-automatic glue sprayer with a self-cleaning spray head, which comprises a shell, a bearing table for placing a workpiece is arranged in the shell, the spray head for gluing the workpiece is arranged in the shell, the spray head is connected with a conveying pipe for conveying glue, and the conveying pipe is connected with a shunting structure. According to the full-automatic glue sprayer with the self-cleaning spray head, blocking and switching of the other two branches, connected with the glue box and the collecting box, of the three-branch channel are achieved, if the density is small, glue in the spray head and the conveying pipe is pushed back into the glue box while the spray head and the conveying pipe are cleaned, and waste is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of glue spraying equipment, and particularly to a fully automatic glue spraying machine with self-cleaning nozzles. Background Art

[0002] A fully automatic glue spraying machine is an automated device mainly used for glue spraying operations in industrial production. It controls the range, shape, and spraying thickness of the sprayed glue through programs to improve production efficiency and product quality. The core advantages of a fully automatic glue spraying machine include flexible glue application, precise glue application, and quality assurance.

[0003] In modern industrial production, fully automatic glue spraying machines are increasingly widely used, especially in industries such as automotive, packaging, and electronics. However, existing fully automatic glue spraying machines have some technical problems after glue spraying ends or the machine stops. The glue in the nozzle is likely to flow out and drip under the action of gravity, which not only causes waste of glue but also increases the burden of subsequent cleaning work. More seriously, the glue in the nozzle and pipeline may solidify after the machine stops for a period of time, which will cause pipeline blockage and affect the normal use of the equipment next time.

[0004] In view of the above problems, there is an urgent need for innovative design based on the original glue spraying machine. Summary of the Invention

[0005] The technical solution of the present invention provides a solution significantly different from the prior art for the technical problem of the overly single solution of the prior art, so as to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solution: A fully automatic glue spraying machine with self-cleaning nozzles, including a housing, a bearing table for placing workpieces is installed inside the housing, a nozzle for applying glue to the workpieces is installed inside the housing, and the nozzle is connected to a conveying pipe for conveying glue. The conveying pipe is connected to a flow splitting structure, and the flow splitting structure is respectively connected to a glue tank and a collection tank. A cleaning structure for cleaning the nozzle is installed inside the housing.

[0007] Preferably, the flow splitting structure includes a flow splitting part and a triggering part. The flow splitting part includes a flow splitting head, a three-way channel, a blocking plate, an auxiliary shaft, a glue pipe, a collection pipe, and a chain. One end of the conveying pipe is connected to the flow splitting head, and the two sides of the other end of the flow splitting head are respectively connected to the glue pipe and the collection pipe. The glue pipe and the collection pipe are respectively connected to the corresponding glue tank and collection tank. A three-way channel is opened inside the flow splitting head, and the three-way channel respectively corresponds to and communicates with the conveying pipe, the glue pipe, and the collection pipe. The three-way area of the three-way channel is rotatably connected to the auxiliary shaft, and a blocking plate is installed on the auxiliary shaft. One end of the auxiliary shaft penetrates through the outer wall of the flow splitting head and is connected to the triggering part through a sprocket and a chain.

[0008] Preferably, the trigger part includes a control shaft, a full gear, an empty slot, a trigger rod, a pressure spring, a cylinder, an adjusting rod, and a connecting plate. The chain is connected to the control shaft through a sprocket, and one end of the control shaft is rotatably connected to the empty slot, and the empty slot is opened in the diverter head. The control shaft is connected to the full gear in the empty slot. The full gear is meshingly connected to the trigger rod on the side, and one end of the trigger rod is located in the three-way slot, and the other end of the trigger rod passes through the outer wall of the diverter head and is located in the cylinder. The cylinder is installed on the outer wall of the diverter head, and the end of the cylinder is threadedly connected with the adjusting rod. The adjusting rod is located in the inner end of the cylinder and is rotatably connected to the connecting plate, and a pressure spring is connected between the connecting plate and the trigger rod.

[0009] Preferably, the inner end of the trigger rod located in the three-way groove is configured as an inclined structure.

[0010] Preferably, the cleaning structure includes a cleaning liquid delivery device, a liquid delivery pipe, a cylinder body, a piston rod, a mounting plate, a branch pipe, a connecting groove, a nanosyringe, and a needle. A cleaning liquid delivery device is provided in the shell, and the cleaning liquid delivery device is connected to a liquid delivery pipe for delivering the cleaning liquid. The liquid delivery pipe is connected to the cylinder body, and the cylinder body is installed in the shell on both sides of the nozzle. A piston rod is provided in each of the cylinder bodies, and the ends of each piston rod are respectively connected to the upper two ends of the mounting plate. Each of the cylinder bodies is connected to a branch pipe between the lower transverse area of ​​the mounting plate, and the two branch pipes are respectively connected to the two ends of the connecting groove. The connecting groove is opened in the middle area of ​​the transverse surface of the mounting plate, and a nanosyringe is installed in the middle area of ​​the transverse surface of the mounting plate, and the nanosyringe is connected to the connecting groove. A needle is slidably connected in the nanosyringe, and the needle is used to insert into the nozzle.

[0011] Preferably, the mounting plate is configured as a "concave" structure, and the mounting plate is located below the nozzle and on the same horizontal line.

[0012] Compared with the prior art, the beneficial effect of the present invention is that the fully automatic glue spraying machine with self-cleaning nozzle can insert a needle into the nozzle to clear it when it stops working, through the setting of the cleaning structure, to prevent the nozzle from being blocked after the glue dries. With the injection of cleaning liquid, the cleaning liquid pushes the glue in the nozzle and the delivery pipe back to the original path. Due to the different densities of the cleaning liquid and the glue, if the density is large, it will contact the extrusion trigger rod to move, driving the full gear, control shaft, auxiliary shaft and blocking plate to rotate, thereby realizing the blocking and switching of the other two branches of the three-way channel connecting the glue tank and the collection box, and if the density is small, it will not, thereby cleaning the nozzle and the delivery pipe while pushing the glue in the nozzle and the delivery pipe back to the glue tank, reducing waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the front cross-sectional structure of the present invention;

[0014] Figure 2 This is a schematic cross-sectional structure diagram of the pressure spring of the present invention in a compressed state;

[0015] Figure 3 This is a schematic cross-sectional structure diagram of the pressure spring of the present invention in a normal state;

[0016] Figure 4 This is a schematic structure diagram of the flow splitter head of the present invention;

[0017] Figure 5 This is a schematic side cross-sectional structure diagram of the present invention;

[0018] Figure 6 This is a schematic top cross-sectional structure diagram of the cylinder block of the present invention;

[0019] Figure 7 This is a schematic side cross-sectional structure diagram of the mounting plate of the present invention;

[0020] Figure 8 This is a schematic three-dimensional structure diagram of the present invention.

[0021] In the figure: 1. Housing; 2. Bearing platform; 3. Nozzle; 4. Delivery pipe; 5. Flow splitting structure; 501. Flow splitter head; 502. Three-way channel; 503. Baffle plate; 504. Auxiliary shaft; 505. Rubber hose; 506. Collection pipe; 507. Chain; 508. Control shaft; 509. Full gear; 510. Empty slot; 511. Trigger rod; 512. Pressure spring; 513. Cylinder; 514. Adjusting rod; 515. Connecting plate; 6. Rubber water tank; 7. Collection box; 8. Cleaning structure; 801. Cleaning liquid delivery device; 802. Liquid delivery pipe; 803. Cylinder block; 804. Piston rod; 805. Mounting plate; 806. Branch pipe; 807. Communication slot; 808. Needle receiving cylinder; 809. Needle tip. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figure 1-8, the present invention provides a technical solution: a fully automatic glue spraying machine with self-cleaning nozzles, including a housing 1, a carrier table 2, a nozzle 3, a delivery pipe 4, a flow splitting structure 5, a flow splitting head 501, a three-way channel 502, a baffle plate 503, an auxiliary shaft 504, a glue pipe 505, a control shaft 508, a full gear 509, an empty slot 510, a trigger rod 511, a pressure spring 512, a cylinder body 513, an adjusting rod 514, a connecting plate 515, a glue tank 6, a collection box 7, a cleaning structure 8, a cleaning liquid delivery device 801, a liquid delivery pipe 802, a cylinder block 803, a piston rod 804, a mounting plate 805, a branch pipe 806, a communication slot 807, a needle receiving cylinder 808, and a needle head 809. A carrier table 2 for placing workpieces is installed inside the housing 1, and a nozzle 3 for applying glue to the workpieces is installed inside the housing 1. The nozzle 3 is connected to a delivery pipe 4 for delivering glue, the delivery pipe 4 is connected to a flow splitting structure 5, and the flow splitting structure 5 is respectively connected to a glue tank 6 and a collection box 7. A cleaning structure 8 for cleaning the nozzle 3 is installed inside the housing 1.

[0024] The flow splitting structure 5 includes a flow splitting part and a triggering part. The flow splitting part includes a flow splitting head 501, a three-way channel 502, a baffle plate 503, an auxiliary shaft 504, a glue pipe 505, a collection pipe 506, and a chain 507. One end of the delivery pipe 4 is connected to the flow splitting head 501, and the other end of the flow splitting head 501 is respectively connected to a glue pipe 505 and a collection pipe 506 on both sides. The glue pipe 505 and the collection pipe 506 are respectively connected to the corresponding glue tank 6 and collection box 7. A three-way channel 502 is opened inside the flow splitting head 501, and the three-way channel 502 respectively corresponds to and communicates with the delivery pipe 4, the glue pipe 505, and the collection pipe 506. An auxiliary shaft 504 is rotatably connected to the three-way area of the three-way channel 502, and a baffle plate 503 is installed on the auxiliary shaft 504. One end of the auxiliary shaft 504 penetrates through the outer wall of the flow splitting head 501 and is connected to the triggering part through a sprocket and a chain 507.

[0025] The triggering part includes a control shaft 508, a full gear 509, an empty slot 510, a trigger rod 511, a pressure spring 512, a cylinder body 513, an adjusting rod 514, and a connecting plate 515. The chain 507 is connected to the control shaft 508 through a sprocket, and one end of the control shaft 508 is rotatably connected inside the empty slot 510. The empty slot 510 is opened inside the flow splitting head 501. A full gear 509 is connected to the area of the control shaft 508 located inside the empty slot 510. A trigger rod 511 is meshed and connected to the side of the full gear 509. One end of the trigger rod 511 is located inside the three-way channel 502, and the other end of the trigger rod 511 penetrates through the outer wall of the flow splitting head 501 and is located inside the cylinder body 513. The cylinder body 513 is installed on the outer wall of the flow splitting head 501. An adjusting rod 514 is threadedly penetrated and connected to the end of the cylinder body 513. One end of the adjusting rod 514 located inside the cylinder body 513 is rotatably connected to the connecting plate 515, and a pressure spring 512 is connected between the connecting plate 515 and the trigger rod 511.

[0026] The trigger rod 511 is arranged in an inclined structure at the inner end of the three-way channel 502.

[0027] The cleaning structure 8 includes a cleaning liquid conveying device 801, a liquid delivery pipe 802, a cylinder block 803, a piston rod 804, a mounting plate 805, a branch pipe 806, a communication groove 807, a needle receiving cylinder 808, and a needle head 809. A cleaning liquid conveying device 801 is provided in the housing 1, and a liquid delivery pipe 802 for conveying the cleaning liquid is connected to the cleaning liquid conveying device 801. The liquid delivery pipe 802 communicates with a cylinder block 803, and the cylinder block 803 is installed on both sides of the nozzle 3 in the housing 1. A piston rod 804 is provided in each cylinder block 803, and the end portions of each piston rod 804 are respectively connected to the upper two ends of the mounting plate 805. A branch pipe 806 is connected between each cylinder block 803 and the lower horizontal surface area of the mounting plate 805, and the two branch pipes 806 communicate with the two ends of the communication groove 807 respectively. The communication groove 807 is opened in the middle area of the horizontal surface of the mounting plate 805, and a needle receiving cylinder 808 is installed in the middle area of the horizontal surface of the mounting plate 805. The needle receiving cylinder 808 communicates with the communication groove 807. A needle head 809 is snap-fitted and slidably connected in the needle receiving cylinder 808, and the needle head 809 is used to insert into the nozzle 3.

[0028] The mounting plate 805 is arranged in a "concave" structure, and the mounting plate 805 is located below the nozzle 3 and on the same horizontal line.

[0029] Working principle: According to Figure 1 As shown, after the nozzle 3 stops working, the cleaning liquid conveying device 801 operates, conveys the cleaning liquid through the liquid delivery pipe 802 to the cylinder block 803. After the piston rod 804 in the cylinder block 803 moves a certain distance, at this time, the needle head 809 is located directly below the nozzle 3. The cleaning liquid in the cylinder block 803 enters the communication groove 807 through the branch pipe 806, pushes the needle head 809 in the needle receiving cylinder 808 to move upward, and enters the nozzle 3. The injection of the cleaning liquid pushes the glue in the nozzle 3 and the conveying pipe 4 to flow back through the three-way channel 502 to the glue tank 6. When the cleaning liquid passes through the three-way channel 502, due to different densities, the trigger rod 511 will move, driving the full gear 509 to rotate. The control shaft 508 drives the auxiliary shaft 504 and the blocking plate 503 to rotate through the chain 507, blocking the branch of the three-way channel 502 communicating with the glue tank 6, and the cleaning liquid enters the collection box 7 from the other branch. This is the working principle of the fully automatic glue spraying machine with self-cleaning nozzle.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made in these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully automatic glue spraying machine with a self-cleaning nozzle, comprising a housing (1), characterized in that: A support platform (2) for placing a workpiece is installed in the shell (1), and a nozzle (3) for applying glue to the workpiece is installed in the shell (1), and the nozzle (3) is connected to a delivery pipe (4) for delivering glue, and the delivery pipe (4) is connected to a diversion structure (5), and the diversion structure (5) is respectively connected to a glue box (6) and a collection box (7), and a cleaning structure (8) for cleaning the nozzle (3) is installed in the shell (1).

2. The fully automatic glue spraying machine with self-cleaning nozzle according to claim 1, characterized in that: The flow diversion structure (5) comprises a flow diversion part and a trigger part, wherein the flow diversion part comprises a flow diversion head (501), a three-way channel (502), a blocking plate (503), an auxiliary shaft (504), a glue pipe (505), a collection pipe (506), and a chain (507), wherein the delivery pipe (4) is connected to one end of the flow diversion head (501), and the other end of the flow diversion head (501) is respectively connected to the glue pipe (505) and the collection pipe (506) on both sides, and the glue pipe (505) and the collection pipe (506) are respectively connected to the opposite ends. The invention relates to a glue box (6) and a collection box (7) corresponding to the flow dividing head (501), wherein a three-way channel (502) is provided in the flow dividing head (501), and the three-way channel (502) respectively corresponds to and connects the delivery pipe (4), the glue pipe (505) and the collection pipe (506), and the three-way region of the three-way channel (502) is rotatably connected to an auxiliary shaft (504), and a blocking plate (503) is installed on the auxiliary shaft (504), and a section of the auxiliary shaft (504) passes through the outer wall of the flow dividing head (501) and is connected to a trigger part via a sprocket and a chain (507).

3. The fully automatic glue spraying machine with self-cleaning nozzle according to claim 2, characterized in that: The triggering part comprises a control shaft (508), a full gear (509), an empty slot (510), a triggering rod (511), a pressure spring (512), a cylinder (513), an adjusting rod (514), and a connecting plate (515); the chain (507) is connected to the control shaft (508) via a sprocket, and one end of the control shaft (508) is rotatably connected to the empty slot (510); the empty slot (510) is provided in the diverter head (501); the control shaft (508) is connected to the full gear (509) in the area inside the empty slot (510); the full gear (509) ) is meshedly connected with a trigger rod (511) on the side, and one end of the trigger rod (511) is located in the three-way groove (502), and the other end of the trigger rod (511) passes through the outer wall of the diverter head (501) and is located in the cylinder (513), the cylinder (513) is installed on the outer wall of the diverter head (501), and the end of the cylinder (513) is threadedly connected with an adjustment rod (514), the end of the adjustment rod (514) is located in the cylinder (513) and is rotatably connected with a connecting plate (515), and a pressure spring (512) is connected between the connecting plate (515) and the trigger rod (511).

4. The fully automatic glue spraying machine with self-cleaning nozzle according to claim 3, characterized in that: The trigger rod (511) is arranged at an inner end of the three-way groove (502) to have an inclined structure.

5. The fully automatic glue spraying machine with self-cleaning nozzle according to claim 1, characterized in that: The cleaning structure (8) comprises a cleaning liquid delivery device (801), a liquid delivery pipe (802), a cylinder (803), a piston rod (804), a mounting plate (805), a branch pipe (806), a connecting groove (807), a syringe (808), and a needle (809). The housing (1) is provided with a cleaning liquid delivery device (801), and the cleaning liquid delivery device (801) is connected to a liquid delivery pipe (802) for delivering cleaning liquid. The liquid delivery pipe (802) is connected to a cylinder (803), and the cylinder (803) is installed in the housing (1) on both sides of the nozzle (3). Each of the cylinders (803) is provided with a piston rod (804). The ends of each piston rod (804) are respectively connected to the two ends above the mounting plate (805), and each of the cylinder bodies (803) is connected to a branch pipe (806) between the horizontal area below the mounting plate (805), and the two branch pipes (806) are respectively connected to the two ends of a connecting groove (807), and the connecting groove (807) is opened in the middle area of ​​the horizontal surface of the mounting plate (805), and a nano-syringe tube (808) is installed in the middle area of ​​the horizontal surface of the mounting plate (805), and the nano-syringe tube (808) is connected to the connecting groove (807), and a needle (809) is slidably connected inside the nano-syringe tube (808), and the needle (809) is used to insert into the nozzle (3).

6. The fully automatic glue spraying machine with self-cleaning nozzle according to claim 5, characterized in that: The mounting plate (805) is configured as a "concave" structure, and the mounting plate (805) is located below the spray head (3) and on the same horizontal line.

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