Disc welding system of disc dryer

Abstract

The invention discloses a disc welding system of a disc dryer, relates to the technical field of disc welding, and solves the problem that a gas tank for releasing protective gas in the prior art is possibly not closed in time. The disc welding system of the disc dryer comprises a main support, straight rails are fixedly connected to the front side and the rear side of the upper end of the main support, linear motors are arranged at the upper ends of the two straight rails, a moving plate is arranged at the upper ends of the linear motors, and a servo motor is arranged in the middle of the moving plate; the output end of the servo motor is connected with a rotating disc. According to the protective gas tank, the two ends of the blocking top plate can be extruded in the first through holes, so that the first through holes in the bottom end of the interior of the outer protective shell can be rapidly blocked, then outflow of protective gas in the protective gas tank is rapidly blocked, excessive outflow of the protective gas in the protective gas tank is avoided, and then waste of the protective gas is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of disc welding, in particular to a disc welding system of a disc dryer. Background Art

[0002] The disc continuous dryer is a highly efficient conductive continuous drying equipment. It does not need to be equipped with a cyclone dust collector that must be configured for spray drying, and does not use hot air as a heating medium. Therefore, there will be no product loss caused by the poor separation of hot air and dust entrained with the exhaust gas. The new disc continuous dryer is widely used in drying operations in the chemical, pharmaceutical, pesticide, food, feed, agricultural and sideline product processing and other industries. The disc of the disc dryer needs to be welded by a welding system during the welding process. In the prior art, it is generally welded by a laser welding head, and the existing laser welding needs to use a shielding gas during the welding process to protect the welding object to prevent the high-temperature metal from being damaged by external oxygen during the welding process.

[0003] However, in the existing welding system, after the laser welding head is completed, the gas tank that releases the shielding gas may not be closed in time, which leads to the waste of some shielding gas; and the existing laser welding may produce impurities such as dust, which will pollute the disc and the surrounding environment; therefore, it does not meet the existing needs. In this regard, we propose a disc welding system with a disc dryer. Summary of the invention

[0004] The object of the present invention is to provide a disc welding system for a disc dryer to solve the problem that the gas tank for releasing the protective gas in the prior art proposed in the above-mentioned background technology may not be closed in time, which leads to the waste of part of the protective gas; and the existing laser welding may produce impurities such as dust, which may pollute the disc and the surrounding environment.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a disc welding system of a disc dryer, comprising a main bracket, the front and rear sides of the upper end of the main bracket are fixedly connected with straight rails, the upper ends of the two straight rails are provided with linear motors, the upper ends of the linear motors are provided with moving plates, the middle of the moving plates are provided with servo motors, the output ends of the servo motors are connected with rotating disks, the upper ends of the rotating disks are provided with dryer discs, the end corners of one side of the upper ends of the moving plates are connected with a pushing mechanism, the front side of the straight rails located in the front is fixedly connected with a side bracket, the upper end of the side brackets is fixedly connected with a blowing pipeline mechanism, one end of the blowing pipeline mechanism is connected with a dust collecting mechanism, a laser welding mechanism is provided in the middle of the front end of the straight rails located in the front side, the upper end of the rear side of the straight rails is provided with a protective gas tank, the front end of the protective gas tank is connected with an outer protective shell, the lower end of the outer protective shell is provided with a lower ventilation pipe, the lower ventilation pipes are vertically penetrated with two first through holes, and the first through holes are connected with the outer protective shell; The air blowing pipe mechanism comprises a lower ventilation pipe fixedly connected to the lower end of the outer protective shell, one end of the lower ventilation pipe is connected to a vertical ventilation pipe, an air pump is provided at the upper end of the vertical ventilation pipe, a rear end of the vertical ventilation pipe is connected to an air outlet pipe, one side of the upper end of the vertical ventilation pipe is connected to an upper ventilation pipe, and one end of the upper ventilation pipe is fixedly connected to an internal capillary tube; A second switch mechanism is provided near the middle of the lower ventilation pipe, and a first switch mechanism is provided at the lower end of the vertical ventilation pipe; The lower ventilation pipe is fixed to the upper end of the side bracket, and one end of the upper ventilation pipe is fixedly connected to the upper end of the collecting port; The air outlet of the lower ventilation pipe is located on one side of the welding seam on the surface of the dryer disc.

[0006] Preferably, a support frame is provided at the upper end of the vertical ventilation pipe, a horizontal support plate is fixedly connected to the lower end of the vertical ventilation pipe, and ventilation holes are vertically penetrated on both sides of the horizontal support plate.

[0007] Preferably, a second through hole is provided at the junction of the vertical ventilation pipe and the upper ventilation pipe, and a third through hole is provided at the junction of the vertical ventilation pipe and the lower ventilation pipe.

[0008] Preferably, two inner support plates are fixedly connected in the space on one side of the lower ventilation pipe close to the vertical ventilation pipe, a rotating shaft is rotatably provided between the two inner support plates, one end of the rotating shaft is fixedly connected to a first rotating blade, and the other end of the rotating shaft is fixedly connected to a second rotating blade, and an exhaust port is provided on the upper side of the lower ventilation pipe on the side of the first rotating blade.

[0009] Preferably, the dust collection mechanism includes a three-way pipe fixedly connected to the lower end of the upper ventilation pipe, the three-way pipe is sleeved on the outside of the internal capillary, one side of the three-way pipe is fixedly connected with a collection port, the lower end of the three-way pipe is provided with a collection ball, the collection ball is provided with openings around it, and a filter net is provided in the opening.

[0010] Preferably, the second switch mechanism includes a first tension spring connected to the top end of the inner part of the outer protective shell, the lower end of the first tension spring is connected to a blocking top plate, the lower end of the blocking top plate is connected to a push rod, the push rod is movable through the middle of the lower ventilation pipe, the lower end of the push rod is connected to a second passive extrusion block, and a second tension spring is connected between the four sides of the top end surface of the second passive extrusion block and the bottom end surface of the lower ventilation pipe.

[0011] Preferably, the push rod vertically penetrates the overall lower ventilation pipe, the top end of the push rod extends into the outer protective shell, the cross-sectional surfaces of the two side ends of the blocking top plate are set to a trapezoidal structure, the cross-sectional surface of the first through hole is set to a trapezoidal structure, the cross-sectional shape of the blocking top plate is the same as the shape of the cross-sectional shape of the first through hole, and the cross-sectional surface of the second passive extrusion block is set to a semicircular structure.

[0012] Preferably, the first switch mechanism includes a first passive extrusion block which is vertically movable at the lower end of the vertical ventilation pipe, the upper end of the first passive extrusion block is fixedly connected to a push column, the lower side of the circumferential surface of the push column is fixedly connected to a movable plate, the upper side of the circumferential surface of the push column is fixedly connected to an inner connecting plate, both sides of the inner connecting plate are penetrated by inner through holes, and one side of the inner connecting plate is fixedly connected to a vertical plate.

[0013] Preferably, a first side hole is transversely penetrated through the lower side of the vertical plate, a second side hole is transversely penetrated through the upper side of the vertical plate, a contraction spring is connected around the upper end surface of the movable plate and the lower end surface of the horizontal support plate, and the cross-sectional surface of the first passive extrusion block is set to a semicircular structure.

[0014] Preferably, the pushing mechanism includes a connecting frame fixedly connected to an end corner of one side of the upper end of the movable plate, one end of the connecting frame is connected to a first active extrusion block, and the other end of the connecting frame is connected to a second active extrusion block.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, when the welding of the dryer disc is completed, the movable plate drives the dryer disc to continue to move horizontally to one side, so that the first active extrusion block is directly moved away from the lower end of the second passive extrusion block, and the first active extrusion block no longer extrudes the second passive extrusion block. The second extension spring and the extension elastic force of the first extension spring press the blocking top plate and the second passive extrusion block downward, thereby causing the overall blocking top plate, the push rod and the second passive extrusion block to move downward, and finally causing the two ends of the blocking top plate to be squeezed into the first through hole. This arrangement enables the first through hole at the bottom end of the outer protective shell to be quickly blocked, thereby quickly blocking the outflow of the protective gas in the protective gas tank, avoiding excessive outflow of the protective gas in the protective gas tank, and thereby reducing the waste of the protective gas; 2. In the present invention, external gas is blown into the internal capillary through the upper ventilation pipe, wherein the internal capillary extends to the interior of the collecting ball, and the gas blown out of the internal capillary can flow out from the outlets around the collecting ball. Since the diameter of the overall internal capillary is smaller than the diameter of the upper ventilation pipe, the gas flow rate blown from the internal capillary into the interior of the collecting ball is high pressure and low intensity, while the gas flow rate entering the interior of the three-way pipe from the collecting port is low and the pressure is high. The high-pressure gas will automatically flow to the low-pressure gas. Therefore, the gas in the collecting port and the three-way pipe continuously carries dust into the collecting ball, and the filter at the outlet on the surface of the collecting ball intercepts impurities such as dust, thereby causing the dust and other impurities to be deposited on the lower side of the collecting ball. This arrangement enables the laser welding mechanism to collect impurities such as dust during the welding process to prevent impurities such as dust from contaminating the welding disk and the surrounding environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the air blowing pipeline mechanism and the pushing mechanism in the present invention; Figure 3 It is a front view cutaway view of the integral air blowing duct mechanism in which the first active extrusion block moves to the lower side of the second switch mechanism in the present invention; Figure 4 For the present invention Figure 3 A magnified section view at center A; Figure 5 For the present invention Figure 3 The enlarged section view at B in the middle; Figure 6 For the present invention Figure 5 The enlarged section view at C in the middle; Figure 7 For the present invention Figure 5 The enlarged section view at D in the middle; Figure 8 It is a front view cutaway diagram of the second active extrusion block in the present invention moving to the integral air blowing pipeline mechanism under the first switch mechanism; Fig. 9 For the present invention Figure 8 The enlarged cross-sectional view at E in FIG. Fig.10 For the present invention Figure 8 The enlarged cross-sectional view at F in FIG. In the figure: 1, moving plate; 2, dryer disc; 3, main bracket; 4, first switch mechanism; 401, first passive extrusion block; 402, push column; 403, movable plate; 404, contraction spring; 405, inner connecting plate; 406, vertical plate; 407, first side hole; 408, second side hole; 409, inner through hole; 5, straight track; 6, air blowing pipeline mechanism; 601, vertical vent pipe; 602, lower vent pipe; 603, air pump; 604, upper vent pipe; 605, air outlet pipe; 606, internal capillary; 7, dust collecting mechanism; 701, collecting port; 702, three-way pipe; 703, collecting ball; 704, filter Net; 8. Pushing mechanism; 801. Connecting frame; 802. First active extrusion block; 803. Second active extrusion block; 9. Second switching mechanism; 901. First extension spring; 902. Second passive extrusion block; 903. Pushing rod; 904. Second extension spring; 905. Blocking top plate; 10. Laser welding mechanism; 11. Side bracket; 12. Protective gas tank; 13. Inner support plate; 14. Rotating shaft; 15. First rotating blade; 16. Second rotating blade; 17. Support frame; 18. Exhaust port; 19. Horizontal support plate; 20. Vent; 21. First through hole; 22. Second through hole; 23. Outer protective shell; 24. Third through hole. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] See also Figures 1 to 10 , an embodiment provided by the present invention: a disc welding system of a disc dryer, comprising a main bracket 3, the front and rear sides of the upper end of the main bracket 3 are fixedly connected with straight rails 5, the upper ends of the two straight rails 5 are provided with linear motors, the upper end of the linear motors is provided with a moving plate 1, the middle of the moving plate 1 is provided with a servo motor, the output end of the servo motor is connected with a rotating disk, and the upper end of the rotating disk is placed with a dryer disc 2; A pushing mechanism 8 is connected to the corner of one side of the upper end of the movable plate 1, a side bracket 11 is fixedly connected to the front side of the straight track 5 located in the front, a blowing pipe mechanism 6 is fixedly connected to the upper end of the side bracket 11, and a dust collecting mechanism 7 is connected to one end of the blowing pipe mechanism 6. A laser welding mechanism 10 is provided in the middle of the front end of the straight track 5 located in the front side, and a protective gas tank 12 is provided at the upper end of the straight track 5 located in the rear side, and an outer protective shell 23 is connected to the front end of the protective gas tank 12. A lower ventilation pipe 602 is provided at the lower end of the outer protective shell 23, and two first through holes 21 are vertically penetrated on the lower ventilation pipe 602, and the first through holes 21 are connected to the outer protective shell 23; The air blowing pipe mechanism 6 includes a lower ventilation pipe 602 fixedly connected to the lower end of the outer protective shell 23, one end of the lower ventilation pipe 602 is connected to the vertical ventilation pipe 601, the upper end of the vertical ventilation pipe 601 is provided with an air pump 603, the rear end of the vertical ventilation pipe 601 is connected to an air outlet pipe 605, and one side of the upper end of the vertical ventilation pipe 601 is connected to an upper ventilation pipe 604, wherein the air outlet of the lower ventilation pipe 602 is located on one side of the weld on the surface of the dryer disc 2, and the protective gas tank 12 stores protective gases such as argon, so that the argon gas can be discharged from the air outlet of the lower ventilation pipe 602 to protect the welding part of the dryer disc 2, wherein the lower ventilation pipe 602 is fixed to the upper end of the side bracket 11, so that the side bracket 11 supports the overall air blowing pipe mechanism 6, and one end of the upper ventilation pipe 604 is fixedly connected to the upper end of the collecting port 701.

[0019] A second switch mechanism 9 is provided near the middle of the lower ventilation pipe 602, a first switch mechanism 4 is provided at the lower end of the vertical ventilation pipe 601, the lower ventilation pipe 602 is fixed to the upper end of the side bracket 11, one end of the upper ventilation pipe 604 is fixedly connected to the upper end of the collecting port 701, a support frame 17 is provided at the upper end of the vertical ventilation pipe 601, a horizontal support plate 19 is provided at the lower end of the vertical ventilation pipe 601, ventilation holes 20 are vertically penetrated on both sides of the horizontal support plate 19, a second through hole 22 is provided at the junction of the vertical ventilation pipe 601 and the upper ventilation pipe 604, and a third through hole 24 is provided at the junction of the vertical ventilation pipe 601 and the lower ventilation pipe 602; Two inner support plates 13 are fixedly connected in the space on one side of the lower ventilation pipe 602 close to the vertical ventilation pipe 601, and a rotating shaft 14 is rotatably provided between the two inner support plates 13. A first rotating blade 15 is fixedly connected to one end of the rotating shaft 14, and a second rotating blade 16 is fixedly connected to the other end of the rotating shaft 14. An exhaust port 18 is provided on the upper side of the lower ventilation pipe 602 on the side of the first rotating blade 15. When the first side hole 407 and the third through hole 24 are connected, the gas blown out by the air pump 603 enters the lower ventilation pipe 602 where the first rotating blade 15 is located, and is discharged from the exhaust port 18. This arrangement allows the first rotating blade 15 to rotate under the blowing of the gas, and the first rotating blade 15 drives the rotating shaft 14 and the second rotating blade 16 to rotate. The rotation of the second rotating blade 16 accelerates the discharge of the protective gas diffused at the junction of the lower ventilation pipe 602 and the outer protective shell 23.

[0020] The dust collecting mechanism 7 includes a three-way pipe 702 fixedly connected to the lower end of the upper ventilation pipe 604, and a collecting port 701 is fixedly connected to one side of the three-way pipe 702. A collecting ball 703 is provided at the lower end of the three-way pipe 702. Openings are provided around the collecting ball 703, and a filter screen 704 is provided in the opening. The collecting port 701 and the outlet of the lower ventilation pipe 602 are aligned, so that the gas inside the lower ventilation pipe 602 can enter the collecting port 701 when it flows out to the outside.

[0021] The second switch mechanism 9 includes a first extension spring 901 connected to the top of the inner part of the outer protective shell 23, the lower end of the first extension spring 901 is connected to a blocking top plate 905, the lower end of the blocking top plate 905 is connected to a push rod 903, the push rod 903 is movably sealed and connected to the lower ventilation pipe 602, the push rod 903 movably penetrates the middle of the lower ventilation pipe 602, the lower end of the push rod 903 is connected to a second passive extrusion block 902, and a second extension spring 904 is connected between the four sides of the top end surface of the second passive extrusion block 902 and the bottom end surface of the lower ventilation pipe 602; When the second passive extrusion block 902 and the blocking top plate 905 as a whole move upward, the second passive extrusion block 902 squeezes the stretching elastic force of the second stretching spring 904, and the blocking top plate 905 squeezes the stretching elastic force of the first stretching spring 901 at the upper end. When the first active extrusion block 802 no longer squeezes the second passive extrusion block 902, the stretching elastic force of the second stretching spring 904 and the first stretching spring 901 presses the blocking top plate 905 and the second passive extrusion block 902 downward, thereby causing the overall blocking top plate 905, the push rod 903 and the second passive extrusion block 902 to move downward, and finally Fig. 9 As shown, the two ends of the blocking top plate 905 are squeezed into the first through hole 21.

[0022] The push rod 903 vertically penetrates the overall lower ventilation pipe 602, and the top end of the push rod 903 extends into the outer protective shell 23. The cross-sectional surfaces of the two side ends of the blocking top plate 905 are set to a trapezoidal structure, the cross-sectional surface of the first through hole 21 is set to a trapezoidal structure, the cross-sectional shape of the blocking top plate 905 is the same as the shape of the cross-sectional surface of the first through hole 21, and the cross-sectional surface of the second passive extrusion block 902 is set to a semicircular structure, wherein the cross-sectional surface of the first active extrusion block 802 is set to a circular structure. When the first active extrusion block 802 moves to the lower end of the second passive extrusion block 902, the arc surfaces of the two surfaces enable the first active extrusion block 802 to squeeze the second passive extrusion block 902 upward, thereby enabling the second passive extrusion block 902 and the push rod 903 at the upper end to move upward.

[0023] The first switch mechanism 4 includes a first passive extrusion block 401 which is vertically movable at the lower end of the vertical ventilation pipe 601, and a push column 402 is fixedly connected to the upper end of the first passive extrusion block 401, wherein the push column 402 is movably and sealedly connected to the vertical ventilation pipe 601 and the horizontal support plate 19, and a movable plate 403 is fixedly connected to the lower side of the circumferential surface of the push column 402, wherein the movable plate 403 is located inside the vertical ventilation pipe 601, and an inner connecting plate 405 is fixedly connected to the upper side of the circumferential surface of the push column 402, and inner through holes 409 are penetrated on both sides of the inner connecting plate 405, and a vertical plate 406 is fixedly connected to one side of the inner connecting plate 405, and one side end face of the upper end of the vertical plate 406 is movably supported by the support frame 17, and the support frame 17 presses against one side end face of the vertical plate 406, so that the vertical plate 406 can move in the vertical direction; A first side hole 407 is horizontally penetrated through the lower side of the vertical plate 406, and a second side hole 408 is horizontally penetrated through the upper side of the vertical plate 406. A contraction spring 404 is connected between the upper end surface of the movable plate 403 and the lower end surface of the horizontal support plate 19. The cross-sectional surface of the first passive extrusion block 401 is set as a semicircular structure. This semicircular structure is conducive to the second active extrusion block 803 on one side of the upper end of the connecting frame 801 moving to the lower end of the first passive extrusion block 401. When the second active extrusion block 803 moves to the lower end of the first passive extrusion block 401, the push column 402 moves upward, thereby driving the movable plate 403 to move upward, thereby squeezing the contraction spring 404 at the upper end of the movable plate 403.

[0024] The pushing mechanism 8 includes a connecting frame 801 fixedly connected to the corner of one side of the upper end of the movable plate 1, one end of the connecting frame 801 is connected to the first active extrusion block 802, and the other end of the connecting frame 801 is connected to the second active extrusion block 803, wherein the cross-sectional surface of the first active extrusion block 802 and the second active extrusion block 803 is set as a circular structure, and the setting of this circular structure enables the first active extrusion block 802 to extrude the second passive extrusion block 902 upwards, and the second active extrusion block 803 to extrude the first passive extrusion block 401 upwards.

[0025] The dryer disc 2 is placed on the rotating disc at the upper end of the moving plate 1 by using a manipulator. The whole moving plate 1 is moved laterally under the drive of the linear motor at the upper end of the straight track 5, so that the moving plate 1 drives the dryer disc 2 to move to the rear end of the laser welding mechanism 10. At this time, the laser welding mechanism 10 is turned on, and the laser head at the front end of the laser welding mechanism 10 welds the weld on the dryer disc 2. The rotating disc on the moving plate 1 drives the whole dryer disc 2 to rotate, thereby realizing the rotation welding of the dryer disc 2. While the dryer disc 2 is being rotationally welded, the movable plate 1 drives the upper pushing mechanism 8 to move horizontally, wherein the first active extrusion block 802 at the upper end of the pushing mechanism 8 moves to the lower end of the second switch mechanism 9, and the second passive extrusion block 902 is squeezed upward by the first active extrusion block 802, wherein the pushing rod 903 at the upper end of the second passive extrusion block 902 and the blocking top plate 905 move vertically upward, wherein the extrusion blocks on both sides of the lower end surface of the blocking top plate 905 escape from the first through hole 21, and at this time, the first through hole 21 between the lower ventilation pipe 602 and the outer protective shell 23 is connected, and the argon gas inside the protective gas tank 12 enters the lower ventilation pipe 602 through the outer protective shell 23, and the argon gas blows to the welding of the dryer disc 2 through the outlet of the lower ventilation pipe 602, thereby performing rare gas protection on the welding part of the dryer disc 2; The contraction spring 404 in the first switch mechanism 4 extends its elastic force to press the movable plate 403 downward, so that the overall contraction spring 404 drives the push column 402 and the first passive extrusion block 401 to move downward, wherein the first side hole 407 and the third through hole 24 on the lower side of the vertical plate 406 are connected and matched, and the air pump 603 at the upper end of the vertical ventilation pipe 601 operates to blow the external gas into the vertical ventilation pipe 601, the lower ventilation pipe 602 and the upper ventilation pipe 604. At this time, the vertical ventilation The gas inside the tube 601 passes through the first side hole 407 and the third through hole 24, and the gas blows and rotates the first rotating blade 15 on one side of the third through hole 24, and then the first rotating blade 15 drives the rotating shaft 14 and the second rotating blade 16 on one side to rotate. The second rotating blade 16 is located at the lower side of the junction between the outer protective shell 23 and the lower ventilation pipe 602. The rotation of the second rotating blade 16 accelerates the outflow of the protective gas inside the protective gas tank 12, so that the protective gas has an impact force when it flows out; When the laser welding mechanism 10 performs laser welding, impurities such as dust will appear. Under the impact of the shielding gas, the shielding gas carries the impurities such as dust into the collecting port 701, wherein the second side hole 408 and the second through hole 22 on the upper side of the vertical plate 406 are connected and matched, and the shielding gas enters the upper ventilation pipe 604 through the second side hole 408 and the second through hole 22; The lower end of the upper ventilation pipe 604 is fixedly connected to the internal thin pipe 606. External gas is blown into the internal thin pipe 606 through the upper ventilation pipe 604. The internal thin pipe 606 extends into the interior of the collection sphere 703. The gas blown out from the internal thin pipe 606 can flow outwards from the outlets around the collection sphere 703. Since the diameter of the overall internal thin pipe 606 is smaller than that of the upper ventilation pipe 604, the gas flow rate blown into the collection sphere 703 from the internal thin pipe 606 is high and the pressure is low, while the gas flow rate entering the tee pipe 702 from the collection port 701 is low and the pressure is high. The gas with high pressure will automatically flow towards the gas with low pressure. Therefore, the gas in the collection port 701 and the interior of the tee pipe 702 continuously entrain dust and enter the collection sphere 703. The filter screen 704 at the outlet on the surface of the collection sphere 703 intercepts dust and other impurities, and then the dust and other impurities are deposited on the lower side inside the collection sphere 703. This setting enables the laser welding mechanism 10 to collect dust and other impurities during the welding process, avoiding the contamination of the welding disc and the surrounding environment by dust and other impurities. In summary, at this time, the states of the first switch mechanism 4 and the second switch mechanism 9 are from Figures 3 to 7 as shown; If the welding is completed, the moving plate 1 drives the dryer disc 2 to continue to move horizontally to one side, so that the first active extrusion block 802 directly moves away from the lower end of the second passive extrusion block 902. The first active extrusion block 802 no longer extrudes the second passive extrusion block 902. The stretching elastic forces of the second stretching spring 904 and the first stretching spring 901 press the blocking top plate 905 and the second passive extrusion block 902 downwards, and then the overall blocking top plate 905, the push rod 903 and the second passive extrusion block 902 move downwards. Finally, both ends of the blocking top plate 905 among them are pressed in the first through hole 21. This setting enables the first through hole 21 at the bottom end inside the outer protective shell 23 to be quickly blocked, thereby quickly blocking the outflow of the protective gas inside the protective gas tank 12 and avoiding excessive outflow of the protective gas in the protective gas tank 12; At this time, the air pump 603 is still working, and the gas is discharged from the upper ventilation pipe 604 downwards through the internal thin pipe 606. The gas flow rate blown into the collection sphere 703 from the internal thin pipe 606 is high and the pressure is low. At this time, there is no gas flow at the collection port 701, and the pressure is relatively high. Therefore, the gas in the collection port 701 and the tee pipe 702 will flow into the collection sphere 703, and then further process the residual dust impurities in the collection port 701 and the tee pipe 702.

[0026] The overall moving plate 1 drives the dryer disc 2 to continue to move horizontally to one side of the air blowing pipe mechanism 6. The second active extrusion block 803 and the first active extrusion block 802 are staggered. During the movement of the moving plate 1, the second active extrusion block 803 does not contact the second switch mechanism 9. The second active extrusion block 803 on one side of the upper end of the connecting frame 801 moves to the lower side of the first passive extrusion block 401. The first passive extrusion block 401 is squeezed upward by the second active extrusion block 803. The first passive extrusion block 401 drives the inner connecting plate 405 and the vertical plate 406 to move vertically upward. The first side hole 407 and the third through hole 24 are staggered, and the second side hole 408 and the second through hole 22 are staggered, which makes the vertical plate 406 move the third through hole 24. The second through hole 22 is blocked to prevent external air from entering the lower ventilation pipe 602 and the upper ventilation pipe 604 respectively. The air pump 603 operates to allow external air to pass through the internal through holes 409 on both sides of the upper end of the inner connecting plate 405 and the ventilation holes 20 on both sides of the transverse supporting plate 19, wherein the lower end of the air outlet pipe 605 is provided with a plurality of exhaust holes arranged horizontally in front and back, so that the gas is blown out from the exhaust holes at the lower end of the air outlet pipe 605, and at this time, the movable plate 1 and the dryer disc 2 move to the lower end of the air outlet pipe 605, and the lower end of the air outlet pipe 605 blows air to cool the dryer disc 2. This arrangement allows the surface of the dryer disc 2 to cool quickly after welding. In summary, the states of the first switch mechanism 4 and the second switch mechanism 9 at this time are determined by Figures 8 to 10 shown.

[0027] The entire system is installed on a circular production line, in which the straight track 5 and the curved track form a circular track. Through this arrangement, the movable plate 1 on the straight track 5 moves in a circular motion on the circular track, thereby making the movable plate 1 move in a single direction from the laser welding mechanism 10 to the air outlet pipe 605.

[0028] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A disc welding system for a disc dryer, comprising a main bracket (3), wherein both front and rear sides of the upper end of the main bracket (3) are fixedly connected to straight rails (5), the upper ends of the two straight rails (5) are provided with linear motors, the upper ends of the linear motors are provided with a moving plate (1), the middle of the moving plate (1) is provided with a servo motor, the output end of the servo motor is connected to a rotating disk, and the upper end of the rotating disk is provided with a dryer disc (2), characterized in that: A pushing mechanism (8) is connected to an end corner of one side of the upper end of the movable plate (1); a side bracket (11) is fixedly connected to the front side of the straight track (5) located in the front; an air blowing pipe mechanism (6) is fixedly connected to the upper end of the side bracket (11); one end of the air blowing pipe mechanism (6) is connected to a dust collecting mechanism (7); a laser welding mechanism (10) is provided at the middle of the front end of the straight track (5) located in the front; a protective gas tank (12) is provided at the upper end of the straight track (5) located in the rear; an outer protective shell (23) is connected to the front end of the protective gas tank (12); a lower ventilation pipe (602) is provided at the lower end of the outer protective shell (23); and two first through holes (21) are vertically penetrated through the lower ventilation pipe (602); the first through holes (21) are connected to the outer protective shell (23).

2. A disc welding system for a disc dryer according to claim 1, characterized in that: The air blowing pipe mechanism (6) comprises a lower ventilation pipe (602) fixedly connected to the lower end of the outer protective shell (23); one end of the lower ventilation pipe (602) is connected to a vertical ventilation pipe (601); an air pump (603) is provided at the upper end of the vertical ventilation pipe (601); a rear end of the vertical ventilation pipe (601) is connected to an air outlet pipe (605); one side of the upper end of the vertical ventilation pipe (601) is connected to an upper ventilation pipe (604); one end of the upper ventilation pipe (604) is fixedly connected to an internal capillary tube (606); A second switch mechanism (9) is provided near the middle of the lower ventilation pipe (602), and a first switch mechanism (4) is provided at the lower end of the vertical ventilation pipe (601); The lower ventilation pipe (602) is fixed to the upper end of the side bracket (11), and one end of the upper ventilation pipe (604) is fixedly connected to the upper end of the collecting port (701); The air outlet of the lower ventilation pipe (602) is located on one side of the weld on the surface of the dryer disc (2); A support frame (17) is provided at the upper end of the vertical ventilation pipe (601), and a transverse support plate (19) is fixedly connected to the lower end of the vertical ventilation pipe (601). Ventilation holes (20) are vertically penetrated on both sides of the transverse support plate (19).

3. A disc welding system for a disc dryer according to claim 2, characterized in that: A second through hole (22) is provided at the junction of the vertical ventilation pipe (601) and the upper ventilation pipe (604), and a third through hole (24) is provided at the junction of the vertical ventilation pipe (601) and the lower ventilation pipe (602).

4. A disc welding system for a disc dryer according to claim 3, characterized in that: Two inner support plates (13) are fixedly connected in a space on one side of the lower ventilation pipe (602) close to the vertical ventilation pipe (601); a rotating shaft (14) is rotatably provided between the two inner support plates (13); one end of the rotating shaft (14) is fixedly connected to a first rotating blade (15); the other end of the rotating shaft (14) is fixedly connected to a second rotating blade (16); and an exhaust port (18) is provided on the upper side of the lower ventilation pipe (602) located on one side of the first rotating blade (15).

5. A disc welding system for a disc dryer according to claim 4, characterized in that: The dust collection mechanism (7) comprises a three-way pipe (702) fixedly connected to the lower end of the upper ventilation pipe (604), the three-way pipe (702) being sleeved on the outside of the internal capillary tube (606), a collection port (701) being fixedly connected to one side of the three-way pipe (702), a collection ball (703) being provided at the lower end of the three-way pipe (702), openings being provided around the four sides of the collection ball (703), and a filter screen (704) being provided in the opening.

6. A disc welding system for a disc dryer according to claim 5, characterized in that: The second switch mechanism (9) comprises a first tension spring (901) connected to the top end of the inner part of the outer protective shell (23); the lower end of the first tension spring (901) is connected to a blocking top plate (905); the lower end of the blocking top plate (905) is connected to a push rod (903); the push rod (903) is movably inserted through the middle of the lower ventilation pipe (602); the lower end of the push rod (903) is connected to a second passive extrusion block (902); and a second tension spring (904) is connected between the four sides of the top end surface of the second passive extrusion block (902) and the bottom end surface of the lower ventilation pipe (602).

7. A disc welding system for a disc dryer according to claim 6, characterized in that: The push rod (903) vertically penetrates the overall lower ventilation pipe (602), the top end of the push rod (903) extends into the outer protective shell (23), the cross-sectional surfaces of the two side ends of the blocking top plate (905) are set as a trapezoidal structure, the cross-sectional surface of the first through hole (21) is set as a trapezoidal structure, the cross-sectional shape of the blocking top plate (905) is the same as the shape of the cross-sectional surface of the first through hole (21), and the cross-sectional surface of the second passive extrusion block (902) is set as a semicircular structure.

8. A disc welding system for a disc dryer according to claim 7, characterized in that: The first switch mechanism (4) comprises a first passive extrusion block (401) which moves vertically at the lower end of the vertical ventilation pipe (601); the upper end of the first passive extrusion block (401) is fixedly connected to a push column (402); the lower side of the circumferential surface of the push column (402) is fixedly connected to a movable plate (403); the upper side of the circumferential surface of the push column (402) is fixedly connected to an inner connecting plate (405); both sides of the inner connecting plate (405) are penetrated by inner through holes (409); and one side of the inner connecting plate (405) is fixedly connected to a vertical plate (406).

9. A disc welding system for a disc dryer according to claim 8, characterized in that: A first side hole (407) is transversely penetrated through the lower side of the vertical plate (406), a second side hole (408) is transversely penetrated through the upper side of the vertical plate (406), a contraction spring (404) is connected between the four sides of the upper end surface of the movable plate (403) and the lower end surface of the horizontal support plate (19), and the cross-sectional surface of the first passive extrusion block (401) is set to a semicircular structure.

10. A disc welding system for a disc dryer according to claim 9, characterized in that: The pushing mechanism (8) comprises a connecting frame (801) fixedly connected to an end corner of one side of the upper end of the moving plate (1), one end of the connecting frame (801) being connected to a first active extrusion block (802), and the other end of the connecting frame (801) being connected to a second active extrusion block (803).

Images