An easy-to-clean precise glue dispensing machine and glue dispensing method thereof

Abstract

The present invention discloses an easy-to-clean precision glue dispensing machine and a glue dispensing method thereof in the technical field of precision glue dispensing machines, comprising a base, wherein a material barrel A is fixedly connected to the top of the base, a material barrel B is provided on one side of the material barrel A, the bottoms of the material barrels A and B are respectively fixedly connected to a first material delivery pipe, the top of the material barrel A is fixedly connected to a vacuum pump, the vacuum pump is respectively connected to the material barrel A and the material barrel B, a glue dripping tube is provided at the front end of the base, and both ends of the glue dripping tube are respectively fixedly connected to a second material delivery pipe. The present invention uses a switching connecting mechanism, so that when the pipeline needs to be cleaned, the first material delivery pipe and the second material delivery pipe can be directly connected to form a straight pipe, and the inside of the first material delivery pipe and the second material delivery pipe can be directly cleaned at one time through a cleaning device. When cleaning is not required, the first material delivery pipe, the second material delivery pipe and the metering pump can be connected together, which will not affect the normal metering use of the precision glue dispensing machine.

Description

Technical Field

[0001] The present invention relates to the technical field of glue dispensing machines, and in particular to an easy-to-clean precision glue dispensing machine and a glue dispensing method thereof. Background Art

[0002] The glue dispensing machine is a device that automatically mixes two glues of different concentrations and then dispenses glue. It can dispense glue of different concentrations according to usage needs.

[0003] In order to ensure the accuracy of glue dispensing, the existing precision glue dispensing machine needs to be equipped with a metering pump when dispensing glue, and the glue output of the two groups of glue is detected and accurately proportioned. In this way, when dispensing glue, the glue coming out of the glue barrel needs to pass through the metering pump and then into the glue outlet pipe. The glue cannot flow directly from the glue barrel to the glue outlet pipe. Since the glue itself is highly viscous, the glue circulation pipe needs to be cleaned when not in use to avoid the glue inside the circulation pipe from solidifying. However, due to the presence of the metering pump, the precision glue dispensing machine has a large number of pipes that need to be cleaned, which makes cleaning more troublesome.

[0004] Based on this, the present invention designs an easy-to-clean precision glue dispensing machine and its glue dispensing method to solve the problem that the above-mentioned precision glue dispensing machine needs to pass through a metering pump when the glue liquid circulates and cannot circulate directly, resulting in a large number of pipes that need to be cleaned and it is more troublesome to clean. Summary of the Invention

[0005] The object of the present invention is to provide an easy-to-clean precision glue dispensing machine and a glue dispensing method thereof, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an easy-to-clean precision glue dispensing machine, comprising a base, a material barrel A is fixedly connected to the top of the base, a material barrel B is provided on one side of the material barrel A, the bottoms of the material barrels A and B are respectively fixedly connected to a first material delivery pipe, the top of the material barrel A is fixedly connected to a vacuum pump, and the vacuum pumps are respectively docked with the material barrels A and B, a glue dripping tube is provided at the front end of the base, both ends of the glue dripping tube are respectively fixedly connected to a second material delivery pipe, the top of the metering pump is fixedly connected to the metering pump, one end of the first material delivery pipe is provided with a transfer connecting mechanism, the metering pump, the first material delivery pipe and the second material delivery pipe are fixedly connected through the transfer connecting mechanism, and the transfer connecting mechanism can adjust the connection relationship between the metering pump, the first material delivery pipe and the second material delivery pipe as needed.

[0007] The top of the second transmission tube is fixedly connected with a toothed box, and the toothed box is installed in a direction of rotation and has a first end fixed on the toothed box so that the toothed box can be connected with the first transmission tube at the bottom thereof. The top of the transmission shaft is fixedly connected to an incomplete gear, the top of the base is rotatably connected to the second gear that meshes with the incomplete gear, the top of the base is rotatably connected to the first gear that can mesh with the second gear, the top of the base is rotatably connected to the first gear that can mesh with the second gear, the top of the first gear is fixedly connected to the first rocker arm, the top of the first rocker arm is slidably connected to the first connecting shaft, one end of the first connecting shaft is fixedly connected to the bottom of the second connecting head, the top of the second gear is fixedly connected to the second rocker arm, the top of the second rocker arm is slidably connected to the second connecting shaft, one end of the second connecting shaft is fixedly connected to the bottom of the first connecting head.

[0008] As a further solution of the present invention, a fifth spring is fixedly connected to the first connecting shaft, one end of the fifth spring is fixedly connected to the second sealing plate, and the second sealing plate is slidably sleeved on the first connecting shaft.

[0009] As a further solution of the present invention, the tops of the A barrel and the B barrel are respectively fixedly connected with stirring motors.

[0010] As a further solution of the present invention, the front end of the base is slidably connected to a sliding motor, and the bottom end of the sliding motor is fixedly connected to the glue dripping tube.

[0011] As a further solution of the present invention, the connecting pipe can be sealed and docked with the docking pipe, the first connector, and the second connector respectively.

[0012] As a further solution of the present invention, an anti-slip sleeve with a large friction coefficient is provided on the top of the turntable rod.

[0013] As a further solution of the present invention, the material barrel A and the material barrel B are both provided with filter screens, and the two first material delivery pipes are connected to the filter screens on the material barrel A and the material barrel B, respectively.

[0014] As a further solution of the present invention, high and low liquid level sensors are respectively provided inside the A barrel and the B barrel.

[0015] An easy-to-clean precise glue dispensing method, the method comprising the following steps:

[0016] Step 1: Pour two glue solutions of different concentrations into barrels A and B respectively;

[0017] Step 2: The vacuum pump controls the vacuum environment inside barrels A and B to discharge the glue liquid, and the glue liquid is transported to the transfer connection mechanism and then to the metering pump through the first feeding pipe;

[0018] Step 3: According to the concentration of the glue, the metering pump controls the discharge volume of the two groups of glue liquids, and transports the glue liquids to the inside of the dripping tube through the second feeding pipe;

[0019] Step 4: The two groups of glue solutions with different concentrations are fully mixed inside the glue dropper to form glue solution with the specified concentration and then discharged for use;

[0020] Step 5: When the inside of the equipment needs to be cleaned, the first and second material delivery pipes are directly connected by adjusting the transfer connection structure so as to skip the metering pump and can be directly cleaned by the cleaning equipment.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention uses a transfer connecting mechanism. When the pipeline needs to be cleaned, the first feed pipe and the second feed pipe can be directly connected to form a straight pipe. In this way, the inside of the first feed pipe and the second feed pipe can be cleaned directly at one time by a cleaning device. When cleaning is not required, the first feed pipe, the second feed pipe and the metering pump can be connected together without affecting the normal metering use of the precision glue dispensing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 for Figure 1 A in the middle is an enlarged structural diagram;

[0025] Figure 3 It is a schematic diagram of the structure of the metering pump;

[0026] Figure 4 Schematic diagram of the structure of the first delivery pipe and the second delivery pipe;

[0027] Figure 5 It is a schematic diagram of the structure of the transfer connection mechanism;

[0028] Figure 6 It is a schematic diagram of the structure of the transfer connection mechanism when viewed from above;

[0029] Figure 7 Schematic diagram of the connection mechanism among the first gear, the second gear and the incomplete gear;

[0030] Figure 8 Schematic diagram of the cross-sectional structure of the connecting pipe;

[0031] Figure 9 Flow chart of the method of the present invention.

[0032] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0033] 1. Metering pump; 2. Base; 3. Material barrel A; 4. Stirring motor; 5. Material barrel B; 6. Vacuum pump; 7. First feed pipe; 8. Second feed pipe; 9. Sliding motor; 10. Glue tube; 11. Docking tube; 12. First spring; 13. Push plate; 14. Turntable rod; 15. Second spring; 16. First connector; 17. Support rod; 18. Third spring; 19. First sealing plate; 20. Second connector; 21. Fourth spring; 22. First gear; 23. Second sealing plate; 24. Third connector; 25. Connecting pipe; 26. First rocker arm; 27. First connecting shaft; 28. Fifth spring; 29. ​​Second gear; 30. Drive shaft; 31. Drive belt; 32. Incomplete gear; 33. Torsion spring; 34. Sealing plug; 35. Second rocker arm; 36. Second connecting shaft. DETAILED DESCRIPTION

[0034] See also Figure 1-9 , the present invention provides a technical solution: an easy-to-clean precision glue dispensing machine, comprising a base 2, a material barrel A 3 is fixedly connected to the top of the base 2, a material barrel B 5 is provided on one side of the material barrel A 3, the bottoms of the material barrels A 3 and B 5 are respectively fixedly connected to a first material delivery pipe 7, the top of the material barrel A 3 is fixedly connected to a vacuum pump 6, the vacuum pump 6 is respectively docked with the material barrel A 3 and the material barrel B 5, a glue dripping tube 10 is provided at the front end of the base 2, both ends of the glue dripping tube 10 are respectively fixedly connected to a second material delivery pipe 8, the top of the metering pump 1 is fixedly connected to the metering pump 1, one end of the first material delivery pipe 7 is provided with a transfer connecting mechanism, the metering pump 1, the first material delivery pipe 7 and the second material delivery pipe 8 are fixedly connected through the transfer connecting mechanism, and the transfer connecting mechanism can adjust the connection relationship between the metering pump 1, the first material delivery pipe 7 and the second material delivery pipe 8 as needed;

[0035] When the above scheme is put into actual use, two glue liquids of different concentrations are poured into the A material barrel 3 and the B material barrel 5 respectively, and the vacuum pump 6 controls the vacuum environment inside the A material barrel 3 and the B material barrel 5 to discharge the glue liquid. The glue liquid is transported to the transfer connecting mechanism through the first delivery pipe 7 and then to the metering pump 1. The metering pump 1 controls the discharge amount of the two groups of glue liquids according to the concentration of the glue output, and transports the glue liquid to the inside of the dripping tube 10 through the second delivery pipe 8. The two groups of glue liquids of different concentrations are fully mixed into the glue liquid of the specified concentration inside the dripping tube 10 and then discharged for use. When it is necessary to clean the inside of the equipment, the first delivery pipe 7 and the second delivery pipe 8 can be directly connected to the metering pump 1 by adjusting the transfer connecting structure, and can be directly cleaned by the cleaning equipment. The present invention adopts a transfer connecting mechanism, and when it is necessary to clean the pipeline, the first delivery pipe 7 and the second delivery pipe 8 can be directly connected to form a straight pipe, so that the inside of the first delivery pipe 7 and the second delivery pipe 8 can be directly cleaned at one time by the cleaning equipment.

[0036] As a further solution of the present invention, the transfer connection mechanism includes a turntable rod 14, the turntable rod 14 is rotatably set on the top of the base 2, and a connecting pipe 25 is fixedly connected to the turntable rod 14. One end of the first feed pipe 7 is slidably connected to a first connector 16 that can be docked with one end of the connecting pipe 25. The first connector 16 is fixedly connected to a second spring 15 for its reset. One end of the metering pump 1 is respectively fixedly connected to two docking pipes 11, and one end of the docking pipe 11 is slidably connected to a second spring 15 that can be docked with one end of the connecting pipe 25. There are three connectors 24, the top of the third connector 24 is fixedly connected to a push plate 13, the third connector 24 is fixedly connected to a first spring 12 for its reset, one end of the second feed pipe 8 is slidably connected to a second connector 20 that can dock with the connecting pipe 25, the second connector 20 is fixedly connected to a fourth spring 21 for its reset, a sealing plug 34 is provided inside the connecting pipe 25, the top of the base 2 is rotatably connected to a transmission shaft 30, the turntable rod 14 and the transmission shaft 30 are jointly connected to a transmission belt 31, the transmission The top of the movable shaft 30 is fixedly connected to an incomplete gear 32, and the top of the base 2 is rotatably connected to a second gear 29 that meshes with the incomplete gear 32. The top of the base 2 is rotatably connected to a first gear 22 that can mesh with the second gear 29. The top of the first gear 22 is fixedly connected to a first rocker arm 26, and the top of the first rocker arm 26 is slidably connected to a first connecting shaft 27. One end of the first connecting shaft 27 is fixedly connected to the bottom of the second connecting head 20. The top of the second gear 29 is fixedly connected to a second rocker arm 35, and the top of the second rocker arm 35 is slidably connected to a second connecting shaft 36. One end of the second connecting shaft 36 is fixedly connected to the bottom of the first connecting head 16. One end of the first connecting shaft 27 and the second connecting shaft 36 are respectively provided with a second sealing plate 23 that can be sealed with the connecting pipe 25. A torsion spring 33 is fixedly connected to the inside of the second gear 29 for its reset. The top of the base 2 is fixedly connected to a support rod 17, and one end of the support rod 17 is slidably connected to the first sealing plate 19. One end of the first sealing plate 19 is fixedly connected to a third spring 18 for its reset.

[0037] When the above solution is put into actual use, when it is necessary to clean the pipeline, the push plate 13 on one side of the docking pipe 11 is pressed to push the third connecting head 24 to compress the first spring 12, so that the third connecting head 24 retracts toward the inside of the docking pipe 11, and the connecting pipe 25 is disconnected from the docking with the third connecting head 24. At the same time, the turntable rod 14 is rotated, and the turntable rod 14 drives the incomplete gear 32 to rotate through the transmission belt 31. The incomplete gear 32 drives the second gear 29 to rotate and contract the torsion spring 33, so that the second swing rod 35 is shifted to one side, and the first connecting head 16 is driven by the second connecting shaft 36 to compress the second spring 15 and retract it into the first material conveying pipe 7. As the second swing rod 35 swings, the second connecting shaft 36 will gradually slide back on the second swing rod 35 The first connector 16 is dialed to disconnect the first connector 16 from the connecting pipe 25. The rotation of the second gear 29 drives the first gear 22 to rotate. The first gear 22 drives the first rocker 26 to rotate through the first connecting shaft 27. In the same way, the second connector 20 is driven to compress the fourth spring 21 and retract it into the second material delivery pipe 8. In this way, the connecting pipe 25 is completely disconnected from the metering pump 1, the first material delivery pipe 7, and the second material delivery pipe 8. The first connecting shaft 27 and the second connecting shaft 36 are slidably connected to the metering pump 1, so that the first connecting shaft 27 and the second connecting shaft 36 will not deflect in an angle and can only slide back and forth in a single direction on the metering pump 1. The turntable rod 14 can drive the connecting pipe 25 to rotate 180 degrees together.

[0038] During the rotation process, the sealing plug 34 inside the connecting pipe 25 is taken out. When the connecting pipe 25 is about to be rotated 180 degrees to swap the left and right sides, due to the missing teeth on the incomplete gear 32, the incomplete gear 32 is not meshed with the second gear 29 for a moment. At this time, the elastic force of the torsion spring 33 drives the second gear 29 to reset, and the second rocker arm 35 is moved to pull the second connecting shaft 36 to reset the first connector 16. At the same time, the first gear 22 is also rotated through the transmission to reset the second connector 20. At this time, the connecting pipe 25 has been rotated 180 degrees, and the first connector 16 and the second connector 20 are docked at the connecting end of the connecting pipe 25. At the same time, the first sealing plate 19 , the second sealing plate 23 will seal and fit the remaining openings on the connecting pipe 25, so that the first feeding pipe 7 and the second feeding pipe 8 can be directly connected to the metering pump 1, and then the straight pipe composed of the first feeding pipe 7 and the second feeding pipe 8 can be directly flushed through the cleaning equipment. When the flushing is completed and it needs to be docked with the metering pump 1 again, the push plate 13 is first turned and then the turntable rod 14 is rotated one hundred and eighty degrees. During the rotation process, the sealing plug 34 can be reinserted into the interior of the connecting pipe 25. Due to the presence of the sealing plug 34, when the connecting pipe 25 is connected to the metering pump 1, the internal glue will not flow directly from the inside of the connecting pipe 25, thereby avoiding metering deviation of the metering pump 1.

[0039] As a further solution of the present invention, a fifth spring 28 is fixedly connected to the first connecting shaft 27, one end of the fifth spring 28 is fixedly connected to the second sealing plate 23, and the second sealing plate 23 is slidably sleeved on the first connecting shaft 27;

[0040] When the above solution is put into actual use, the second sealing plate 23 is elastically arranged on the first connecting shaft 27 through the fifth spring 28. The elastic force of the fifth spring 28 can ensure that the second sealing plate 23 and the connecting pipe 25 are tightly fitted to avoid leakage.

[0041] As a further solution of the present invention, the tops of the A barrel 3 and the B barrel 5 are respectively fixedly connected to stirring motors 4;

[0042] When the above solution is put into practical use, the glue liquid inside the A barrel 3 and the B barrel 5 can be stirred by the stirring motor 4 to maintain its fluidity and reduce drying and solidification.

[0043] As a further solution of the present invention, the front end of the base 2 is slidably connected to a sliding motor 9, and the bottom end of the sliding motor 9 is fixedly connected to the dripping tube 10;

[0044] When the above solution is put into actual use, the sliding motor 9 drives the glue dripping tube 10 to slide at the front end of the base 2 to adjust the distance for easy use.

[0045] As a further solution of the present invention, the connecting pipe 25 can be sealed and connected to the butt joint 11, the first connector 16, and the second connector 20 respectively;

[0046] When the above solution is put into actual use, the sealed connection between the connecting pipe 25 and the butt-joint pipe 11 , the first connector 16 and the second connector 20 prevents the glue from leaking during circulation.

[0047] As a further solution of the present invention, the top of the turntable rod 14 is provided with an anti-slip sleeve with a large friction coefficient;

[0048] When the above solution is put into actual use, the anti-slip sleeve increases the friction force, making it less likely for the turntable rod 14 to slip when it is rotated.

[0049] As a further solution of the present invention, the A material barrel 3 and the B material barrel 5 are respectively provided with filter screens, and the two first material delivery pipes 7 are respectively connected to the filter screens on the A material barrel 3 and the B material barrel 5;

[0050] When the above solution is put into practical use, impurities are filtered through the filter screen, so that the glue liquid is prevented from being blocked during circulation and the purity of the glue liquid is maintained.

[0051] As a further solution of the present invention, the interiors of the A barrel 3 and the B barrel 5 are respectively provided with high and low liquid level sensors;

[0052] When the above solution is put into actual use, the height of the glue liquid inside the A barrel 3 and the B barrel 5 is detected by the high and low liquid level sensors, so that the glue liquid can be replenished in time when the glue liquid content is low.

[0053] An easy-to-clean precise glue dispensing method, the method comprising the following steps:

[0054] Step 1: Pour two glue solutions of different concentrations into the A barrel 3 and the B barrel 5 respectively;

[0055] Step 2: The vacuum pump 6 controls the vacuum environment inside the A barrel 3 and the B barrel 5 to discharge the glue liquid. The glue liquid is transported to the transfer connection mechanism and then to the metering pump 1 through the first feeding pipe 7;

[0056] Step 3: The metering pump 1 controls the discharge volume of the two groups of glue liquids according to the concentration of the glue, and delivers the glue liquids to the inside of the dripping tube 10 through the second feeding pipe 8;

[0057] Step 4: The two groups of glue solutions with different concentrations are fully mixed in the glue dropper 10 to form glue solution with a specified concentration and then discharged for use;

[0058] Step 5: When the inside of the equipment needs to be cleaned, the first material delivery pipe 7 and the second material delivery pipe 8 are directly connected by adjusting the transfer connection structure so as to skip the metering pump 1 and can be directly cleaned by the cleaning equipment.

[0059] Working principle: Two glue solutions of different concentrations are poured into the interior of material barrel A 3 and material barrel B 5 respectively. The vacuum pump 6 controls the vacuum environment inside material barrel A 3 and material barrel B 5 to discharge the glue solution. The glue solution is transported to the transfer connection mechanism through the first feeding pipe 7 and then to the metering pump 1. The metering pump 1 controls the discharge amount of the two groups of glue solutions according to the concentration of the glue solution. The glue solution is transported to the inside of the dripping tube 10 through the second feeding pipe 8. The two groups of glue solutions of different concentrations are fully mixed in the dripping tube 10 to form a glue solution of the specified concentration before being discharged for use.

[0060] When it is necessary to clean the inside of the equipment, press the push plate 13 on one side of the docking tube 11 to push the third connector 24 to compress the first spring 12, so that the third connector 24 retracts toward the inside of the docking tube 11, and the connecting pipe 25 is disconnected from the docking with the third connector 24. At the same time, the turntable rod 14 is rotated, and the turntable rod 14 drives the incomplete gear 32 to rotate through the transmission belt 31. The incomplete gear 32 drives the second gear 29 to rotate and contract the torsion spring 33, so that the second swing rod 35 is shifted to one side, and the first connector 16 is driven by the second connecting shaft 36 to compress the second spring 15 and retract it into the first feed pipe 7. As the second swing rod 35 swings, the second connecting shaft 36 will gradually slide back on the second swing rod 35 to dial the first connector 16, so that the first connector 16 is disconnected from the connecting pipe 25, the rotation of the second gear 29 drives the first gear 22 to rotate, and the first gear 22 drives the first rocker 26 to rotate through the first connecting shaft 27, and in the same way drives the second connector 20 to compress the fourth spring 21 and retract it into the second material delivery pipe 8, so that the connecting pipe 25 is completely disconnected from the metering pump 1, the first material delivery pipe 7, and the second material delivery pipe 8. The first connecting shaft 27 and the second connecting shaft 36 are slidably connected to the metering pump 1, so that the first connecting shaft 27 and the second connecting shaft 36 will not deflect at an angle and can only slide back and forth in a single direction on the metering pump 1. The turntable rod 14 can drive the connecting pipe 25 to rotate 180 degrees together;

[0061] During the rotation process, the sealing plug 34 inside the connecting pipe 25 is removed. When the connecting pipe 25 is about to be rotated 180 degrees to swap the left and right sides, due to the missing teeth on the incomplete gear 32, the incomplete gear 32 is not meshed with the second gear 29 for a moment. At this time, the elastic force of the torsion spring 33 drives the second gear 29 to reset, and the second rocker 35 is moved to pull the second connecting shaft 36 to reset the first connector 16. At the same time, the first gear 22 is also rotated through the transmission to reset the second connector 20. At this time, the connecting pipe 25 has been rotated 180 degrees, and the first connector 16, The second connector 20 is docked with the connecting end of the connecting pipe 25. At the same time, the first sealing plate 19 and the second sealing plate 23 will seal and fit the remaining openings on the connecting pipe 25. In this way, the first material delivery pipe 7 and the second material delivery pipe 8 can be directly docked without the metering pump 1, and then the straight pipe composed of the first material delivery pipe 7 and the second material delivery pipe 8 can be directly flushed through the cleaning equipment. When the flushing is completed and it needs to be docked with the metering pump 1 again, the push plate 13 is first toggled and then the turntable rod 14 is rotated 180 degrees. During the rotation process, the sealing plug 34 is re-inserted into the interior of the connecting pipe 25.

Claims

1. An easy-to-clean precision glue dispensing machine, comprising a base (2), wherein the top of the base (2) is fixedly connected to a material barrel A (3), a material barrel B (5) is provided on one side of the material barrel A (3), the bottoms of the material barrels A (3) and B (5) are respectively fixedly connected to a first feed pipe (7), the top of the material barrel A (3) is fixedly connected to a vacuum pump (6), and the vacuum pump (6) is respectively docked with the material barrel A (3) and the material barrel B (5), a glue dripping tube (10) is provided at the front end of the base (2), and both ends of the glue dripping tube (10) are respectively fixedly connected to a second feed pipe (8), and a metering pump (1) is fixedly connected to the top of the base (2), characterized in that: One end of the first material delivery pipe (7) is provided with a transfer connection mechanism, and the metering pump (1), the first material delivery pipe (7) and the second material delivery pipe (8) are fixedly connected via the transfer connection mechanism, and the transfer connection mechanism can adjust the connection relationship between the metering pump (1), the first material delivery pipe (7) and the second material delivery pipe (8) as needed; The switching connection mechanism comprises a turntable rod (14), the turntable rod (14) is rotatably arranged on the top of the base (2), a connecting pipe (25) is fixedly connected to the turntable rod (14), one end of the first material delivery pipe (7) is slidably connected to a first connector (16) capable of docking with a first port of the connecting pipe (25), a second spring (15) for resetting the first connector (16) is fixedly connected to one end of the metering pump (1), two docking pipes (11) are respectively fixedly connected to one end of the two docking pipes (11), and one end of the two docking pipes (11) is respectively slidably connected to a third connector (16) capable of docking with a second port and a third port of the connecting pipe (25). 24), a push plate (13) is fixedly connected to the top of the third connector (24), a first spring (12) for resetting the third connector (24) is fixedly connected to the third connector (24), one end of the second feed pipe (8) is slidably connected to a second connector (20) capable of docking with the fourth port of the connecting pipe (25), a fourth spring (21) for resetting the second connector (20) is fixedly connected to the second connector (20), a sealing plug (34) is provided inside the connecting pipe (25), a transmission shaft (30) is rotatably connected to the top of the base (2), the turntable rod (14) and the transmission shaft (30) are commonly connected to a transmission belt (31), and the transmission shaft ( The top of the base (2) is fixedly connected to an incomplete gear (32), the top of the base (2) is rotatably connected to a second gear (29) meshing with the incomplete gear (32), the top of the base (2) is rotatably connected to a first gear (22) capable of meshing with the second gear (29), the top of the first gear (22) is fixedly connected to a first rocking rod (26), the top of the first rocking rod (26) is slidably connected to a first connecting shaft (27), one end of the first connecting shaft (27) is fixedly connected to the bottom of the second connector (20), the top of the second gear (29) is fixedly connected to a second rocking rod (35), the top of the second rocking rod (35) is slidably connected to A second connecting shaft (36) is connected, one end of the second connecting shaft (36) is fixedly connected to the bottom of the first connecting head (16), one end of the first connecting shaft (27) and the second connecting shaft (36) are respectively provided with a second sealing plate (23) that can be sealed with the fifth port and the sixth port of the connecting pipe (25), the second gear (29) is fixedly connected inside with a torsion spring (33) for its reset, the top of the base (2) is fixedly connected with a support rod (17), one end of the support rod (17) is slidably connected to the first sealing plate (19), and one end of the first sealing plate (19) is fixedly connected with a third spring (18) for its reset.

2. The easy-to-clean precision glue dispensing machine according to claim 1, characterized in that: A fifth spring (28) is fixedly connected to the first connecting shaft (27), one end of the fifth spring (28) is fixedly connected to the second sealing plate (23), and the second sealing plate (23) is slidably sleeved on the first connecting shaft (27). When the pipeline needs to be cleaned, the push plate (13) on one side of the butt joint (11) is pressed to push the third connector (24) to compress the first spring (12), so that the third connector (24) retracts toward the inside of the butt joint (11), and the connecting pipe (25) is separated from the docking with the third connector (24). At the same time, the turntable rod (14) is rotated, and the turntable rod (14) drives the incomplete gear (32) to rotate through the transmission belt (31). The incomplete gear (32) drives the second gear (29) to rotate and contract the torsion spring (33), so that the second swing rod (35) is shifted to one side, and the second connecting shaft (36) is rotated. The first connector (16) is driven to compress the second spring (15) and retract it into the first delivery pipe (7). As the second swing rod (35) swings, the second connecting shaft (36) will gradually slide back on the second swing rod (35), so that the first connector (16) and the connecting pipe (25) are disconnected. The rotation of the second gear (29) will drive the first gear (22) to rotate. The first gear (22) drives the first swing rod (26) to rotate through the first connecting shaft (27) and drives the second connector (20) to compress the fourth spring (21) and retract it into the second delivery pipe (8) in the same way. In this way, the connection between the connecting pipe (25) and the metering pump (1), the first delivery pipe (7), and the second delivery pipe (8) is completely disconnected, and the turntable rod (14) can drive the connecting pipe (25) to rotate 180 degrees together. During the rotation process, the sealing plug (34) inside the connecting pipe (25) is taken out. When the connecting pipe (25) is about to be rotated 180 degrees to swap the left and right sides, due to the missing teeth on the incomplete gear (32), the incomplete gear (32) is not meshed with the second gear (29) for a moment. At this time, the elastic force of the torsion spring (33) drives the second gear (29) to reset, and the second rocker (35) is pulled to pull the second connecting shaft (36) to reset the first connector (16). At the same time, the first gear (22) is also rotated through the transmission to make the second gear (29) The connector (20) is reset, and at this time the connecting pipe (25) has been rotated 180 degrees. The first connector (16) and the second connector (20) are respectively connected to the fifth port and the sixth port of the connecting pipe (25). At the same time, the two second sealing plates (23) are respectively sealed to the first port and the fourth port of the connecting pipe (25). The first sealing plate (19) is sealed to the second port and the third port of the connecting pipe (25). In this way, the first material delivery pipe (7) and the second material delivery pipe (8) can skip the metering pump (1) and directly connect.

3. The easy-to-clean precision glue dispensing machine according to claim 1, characterized in that: The tops of the A material barrel (3) and the B material barrel (5) are respectively fixedly connected with stirring motors (4).

4. The easy-to-clean precision glue dispensing machine according to claim 1, characterized in that: The front end of the base (2) is slidably connected to a sliding motor (9), and the bottom end of the sliding motor (9) is fixedly connected to a glue dripping tube (10).

5. The easy-to-clean precision glue dispensing machine according to claim 1, characterized in that: The connecting pipe (25) can be sealed and docked with the docking pipe (11), the first connector (16), and the second connector (20), respectively.

6. The easy-to-clean precision glue dispensing machine according to claim 1, characterized in that: The top of the turntable rod (14) is provided with an anti-slip sleeve with a large friction coefficient.

7. The easy-to-clean precision glue dispensing machine according to claim 1, characterized in that: The A material barrel (3) and the B material barrel (5) are each provided with a filter screen, and the two first material delivery pipes (7) are each connected to the filter screens on the A material barrel (3) and the B material barrel (5).

8. The easy-to-clean precision glue dispensing machine according to claim 1, characterized in that: The A material barrel (3) and the B material barrel (5) are each provided with a high and low liquid level sensor.

9. An easy-to-clean precise glue dispensing method, applicable to the easy-to-clean precise glue dispensing machine according to any one of claims 1 to 8, characterized in that: The method comprises the following steps: Step 1: Pour two glue solutions of different concentrations into barrel A (3) and barrel B (5) respectively; Step 2: The vacuum pump (6) controls the vacuum environment inside the A barrel (3) and the B barrel (5) to discharge the glue liquid, and the glue liquid is transported to the transfer connection mechanism and then to the metering pump (1) through the first feeding pipe (7); Step 3: The metering pump (1) controls the discharge volume of the two groups of glue liquids according to the concentration of the glue, and delivers the glue liquids to the inside of the glue dripping tube (10) through the second feeding pipe (8); Step 4: The two groups of glue solutions with different concentrations are fully mixed inside the glue dropper (10) to form glue solution with a specified concentration and then discharged for use; Step 5: When the interior of the equipment needs to be cleaned, the first material delivery pipe (7) and the second material delivery pipe (8) are directly connected by adjusting the switching connection structure so as to skip the metering pump (1) and directly connect to each other, so that the cleaning equipment can be used for direct cleaning.

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