On-line circulating air and ice water cooling device for silk screen drying

Abstract

The invention discloses a silk screen drying online circulating air ice water cooling device which comprises a conveying belt, a cooling box is arranged on the conveying belt, an air inlet and an air outlet are formed in the side, facing the conveying belt, of the cooling box, and an air cooling device is arranged in the cooling box; the air cooling device comprises a fan, a rotating seat and a condensate water cleaning structure, a cavity is formed in the rotating seat, a water inlet and a water outlet which are communicated with the cavity are formed in the centers of the two sides of the rotating seat in a penetrating mode respectively, a U-shaped connecting seat is arranged in the cooling box, and bearing seats are symmetrically arranged on the two inner sides of the U-shaped connecting seat; the rotating seat is rotatably arranged between the two bearing seats through sealing bearings, a water inlet pipe and a water outlet pipe are respectively inserted into the centers of the inner sides of the two bearing seats in a sealing manner, the water inlet pipe is correspondingly inserted into the water inlet, and the water outlet pipe is correspondingly inserted into the water outlet; the condensate water cleaning structure comprises sponge bodies which are symmetrically located at the two ends of the rotating base and can abut against the side walls of the two ends of the rotating base to wipe and adsorb condensate water, and a driving mechanism capable of driving the rotating base to rotate.

Description

Technical Field

[0001] The invention particularly relates to an online circulating wind-ice-water cooling device for screen printing drying. Background Art

[0002] The main reason why aluminum labels need to be cooled after drying is to prevent moisture absorption and ensure printing quality. During the screen printing process, if the aluminum plate is weighed or handled directly after drying, it may absorb moisture in the air due to the high temperature, resulting in moisture absorption, which will affect the printing effect and product quality. In addition, the hot aluminum plate may damage the measuring equipment, and the changes in the surrounding airflow may also cause inaccurate weighing.

[0003] However, the current cooling device only uses a fan to blow air for cooling, which results in low cooling efficiency and a long cooling time, which correspondingly increases the production cost and cannot meet the use requirements. Summary of the invention

[0004] The present invention aims to solve at least one of the problems existing in the prior art to a certain extent. To this end, the present invention proposes an online circulating air-ice-water cooling device for screen printing drying.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An online circulating wind-ice-water cooling device for screen printing drying comprises a conveyor belt, a cooling box is arranged on the conveyor belt, an air inlet and an air outlet are arranged on the cooling box facing the conveyor belt, and an air cooling device is arranged in the cooling box;

[0007] An air cooling device, comprising a fan, a rotating seat and a condensed water cleaning structure, wherein the rotating seat has a cavity therein, and a water inlet and a water outlet communicating with the cavity are respectively penetrated at the centers of both sides of the rotating seat, a U-shaped connecting seat is provided in the cooling box, and bearing seats are symmetrically provided on both inner sides of the U-shaped connecting seat, the rotating seat is rotatably arranged between the two bearing seats through a sealed bearing, and a water inlet pipe and a water outlet pipe are respectively sealed and plugged in at the inner centers of the two bearing seats, the water inlet pipe is correspondingly plugged in the water inlet, and the water outlet pipe is correspondingly plugged in the water outlet;

[0008] The condensation water cleaning structure includes a sponge body symmetrically located at both ends of a rotating seat and capable of abutting against the side walls of the rotating seat at both ends to wipe and absorb the condensation water, and a driving mechanism capable of driving the rotating seat to rotate, wherein the rotating seat is provided with an insulating cotton layer along the circumferential side wall.

[0009] In one embodiment, the driving mechanism includes a motor arranged on one side of the U-shaped connecting seat, a driving gear is provided on the motor driving shaft, a transmission gear ring is provided on one side of the rotating seat and is cocentrically arranged therewith, and the driving gear is meshedly connected with the transmission gear ring.

[0010] In one embodiment, the condensate water cleaning structure also includes an extrusion groove recessed inside the U-shaped connecting seat, the sponge body is elastically telescopically arranged in the extrusion groove, and initially the sponge body is maintained in a connection state protruding outside the extrusion groove by the elastic force, and the width of the extrusion groove is smaller than the width of the sponge body, so that the sponge body can be deformed and compressed to drain water when it is compressed into the extrusion groove by force, and the U-shaped connecting seat is provided with a first transmission mechanism that can drive the sponge body to move into the extrusion groove by rotating the rotating seat.

[0011] In one embodiment, a drainage hole is formed through the lower end of the extrusion groove, and a water collecting tank is connected to the lower end of the drainage hole in the cooling box.

[0012] In one embodiment, the first transmission mechanism includes a limit ring group symmetrically arranged on both sides of the U-shaped connecting seat, and the rotating seat is concentrically arranged at the inner ring of the limit ring group; the limit ring group includes a first limit ring and a second limit ring concentrically arranged at intervals, a limit cavity is formed between the first limit ring and the second limit ring, and a first arc-shaped convex portion protruding away from the sponge body is provided in the limit cavity at a position corresponding to the sponge body, grooves are respectively concave on both sides of the rotating seat, a flap is rotatably arranged in the groove, a first universal ball is movably arranged at one end of the flap, the first universal ball is movably arranged in the limit cavity, the first universal ball can rotate with the rotating seat and contact with the first arc-shaped convex portion so that the flap rotates and presses on the sponge body, and at this time the sponge body is displaced into the extrusion groove under the force.

[0013] In one embodiment, the sponge body includes a connecting plate and a sponge fixedly wrapped on the connecting plate, the width of the connecting plate is smaller than the width of the extrusion groove, and a clearance notch is provided on the connecting plate corresponding to the flap, so that the flap can pass over the connecting plate through the clearance notch when the flap rotates with the rotating seat, and the connecting plate is provided with a guide shaft at a distance from the side facing the extrusion groove, one end of the guide shaft passes through the U-shaped connecting seat and is provided with a limit plate, and a spring is provided on the guide shaft between the connecting plate and the extrusion groove.

[0014] In one embodiment, the water inlet pipe and the water outlet pipe are both L-shaped, and the water outlet end of the water inlet pipe is opposite to the water inlet end of the water outlet pipe.

[0015] In one embodiment, an air duct with upper and lower openings is rotatably disposed in the air outlet, and a second transmission mechanism is disposed in the cooling box, which can be rotated by a rotating seat to drive the air duct to swing back and forth.

[0016] In one embodiment, the second transmission mechanism includes a connecting rod and a push rod, the air duct is eccentrically rotated and arranged in the air outlet, so that in the initial state, the upper end of the air duct is biased toward the air inlet due to its own weight, and the upper end of the air duct is provided with a flange along the edge contour, the push rod is arranged in the cooling box and abuts under the flange, and the push rod can be located between the air inlet and the air outlet for reciprocating movement, and the abutting surface of the push rod for abutting against the flange is provided with a second arc-shaped protrusion, and the connecting rod is hinged between the push rod and the driving gear.

[0017] In one embodiment, a through groove is passed through the upper side of the push rod, and two or more positioning shafts are provided on the cooling box at intervals. The positioning shafts are movably arranged in the through groove, and a limiting nut is provided on the positioning shafts in a threaded fitting sleeve above the push rod.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention allows ice water to flow from the water inlet pipe into the cavity of the rotating seat and be discharged from the water outlet pipe, thereby achieving continuous flow and heat exchange of ice water in the cavity of the rotating seat. When the fan is working, cooling air is transported from the air inlet of the cooling box to the air outlet, and the cooling air passes through the rotating seat to achieve heat exchange cooling of the cooling air, thereby effectively enhancing the cooling effect and efficiency of the workpiece.

[0020] At the same time, as the cooling air passes through the rotating seat, there will be water droplets on the outer wall of the rotating seat because the hot air blows through the rotating seat of the ice. The hot air increases the surface temperature of the rotating seat of the ice, causing the water vapor in the surrounding air to liquefy and form water droplets on its surface. This process consumes the water vapor in the surrounding air, so the air becomes relatively dry, and the dry air can ensure the dry state of the workpiece after drying;

[0021] The condensed water cleaning structure can quickly and effectively clean the condensed water in time to avoid excessive condensed water on the surface of the rotating seat. The continuous blowing of the fan will accelerate the evaporation of water, causing the condensed water to be converted back into water vapor and diffused into the air, affecting the dry state of the workpiece after drying.

[0022] The circumferential side walls of the rotating seat are wrapped with a heat-insulating cotton layer, so that the rotating seat can radiate heat exchange and cool, and the condensed water droplets are only on the side walls at both ends of the rotating seat. Therefore, no matter what the shape of the circumferential contour of the rotating seat is, the condensed water cleaning structure can clean the condensed water on the surface of the rotating seat in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a framework diagram of a screen printing drying online circulating air-ice-water cooling device in the present invention;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the air cooling device in the present invention;

[0025] Figure 3 It is a schematic diagram of the cross-sectional structure of the air cooling device in the present invention;

[0026] Figure 4 This is one of the partial exploded three-dimensional structural schematic diagrams of the air cooling device of the present invention;

[0027] Figure 5 This is the second schematic diagram of the partially exploded three-dimensional structure of the air cooling device of the present invention;

[0028] Figure 6 It is a schematic diagram of the three-dimensional structure of the sponge in the present invention;

[0029] Figure 7 For the present invention Figure 2 An enlarged schematic diagram of point A. DETAILED DESCRIPTION

[0030] The following specific implementation contents provide a variety of different embodiments or examples for implementing the present invention. Of course, these are only embodiments or examples and do not wish to be restrictive. In addition, repeated reference numerals may be used in different embodiments, such as repeated numbers and / or letters. These repetitions are for the purpose of simply and clearly describing the present invention and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0031] like Figures 1 to 7 The screen printing drying online circulating air-ice-water cooling device shown in the figure comprises a conveyor belt 1, a cooling box 2 is arranged on the conveyor belt 1, and the cooling box 2 is respectively provided with an air inlet 3 and an air outlet 4 on the side facing the conveyor belt 1, and an air cooling device is arranged in the cooling box 2; the air cooling device comprises a fan 31, a rotating seat 32 and a condensed water cleaning structure, the rotating seat 32 has a cavity 33, and the centers of both sides of the rotating seat 32 are respectively penetrated with a water inlet 34 and a water outlet 35 connected to the cavity 33, and a U-shaped connecting seat 36 is arranged in the cooling box 2, and the inner sides of the U-shaped connecting seat 36 are symmetrical A bearing seat 37 is provided, and the rotating seat 32 is rotatably arranged between the two bearing seats 37 through a sealed bearing 38. A water inlet pipe 39 and a water outlet pipe 40 are respectively sealed and inserted in the inner center of the two bearing seats 37. The water inlet pipe 39 is correspondingly inserted in the water inlet 34, and the water outlet pipe 40 is correspondingly inserted in the water outlet 35; a condensed water cleaning structure includes a sponge body 5 which is symmetrically located at both ends of the rotating seat 32 and can abut against the side walls of the two ends of the rotating seat 32 to wipe and absorb the condensed water, and a driving mechanism 6 that can drive the rotating seat 32 to rotate, wherein the rotating seat 32 is provided with a heat insulating cotton layer along the circumferential side wall.

[0032] Specifically, the ice water is flowed into the cavity of the rotating seat from the water inlet pipe and discharged from the water outlet pipe, thereby realizing continuous flow and heat exchange of the ice water in the cavity of the rotating seat. When the fan is working, the cooling air is transported to the air outlet through the air inlet of the cooling box, and the cooling air passes through the rotating seat to realize heat exchange cooling of the cooling air, thereby effectively enhancing the cooling effect and efficiency of the workpiece.

[0033] At the same time, as the cooling air passes through the rotating seat, there will be water droplets on the outer wall of the rotating seat because the hot air blows through the rotating seat of the ice. The hot air increases the surface temperature of the rotating seat of the ice, causing the water vapor in the surrounding air to liquefy and form water droplets on its surface. This process consumes the water vapor in the surrounding air, so the air becomes relatively dry, and the dry air can ensure the dry state of the workpiece after drying;

[0034] The sponge in the condensed water cleaning structure cooperates with the driving mechanism, so that the driving mechanism drives the rotating seat to rotate, and then the sponge can quickly and effectively clean the condensed water in time when the rotating seat rotates, so as to avoid excessive condensed water on the surface of the rotating seat, which is continuously blown by the fan and the wind accelerates the evaporation of water, so that the condensed water is converted into water vapor again and diffused into the air, affecting the dry state of the workpiece after drying;

[0035] In addition, the circumferential side wall of the rotating seat is wrapped with a heat-insulating cotton layer, which effectively isolates the heat exchange of the circumferential side wall of the rotating seat and avoids the formation of condensed water on the circumferential side wall of the rotating seat. Therefore, the rotating seat can radiate heat exchange and cool, and the surface of condensed water droplets is only the side walls at both ends of the rotating seat. Therefore, no matter what the circumferential contour shape of the rotating seat is, the condensed water cleaning structure can clean the condensed water on the surface of the rotating seat in time.

[0036] Specifically, the heat-insulating cotton layer includes a cover shell covering the circumferential side wall of the rotating seat, and heat-insulating cotton filled in the inner cavity of the cover shell.

[0037] Further, the driving mechanism 6 includes a motor 61 disposed on one side of the U-shaped connecting seat 36, a driving gear 62 is disposed on the driving shaft of the motor 61, a transmission gear ring 63 is disposed coaxially with the rotating seat 32 on one side thereof, and the driving gear 62 is connected in a transmission meshing manner with the transmission gear ring 63. Specifically, the driving gear is driven to rotate by the motor, and then the transmission gear ring is driven to rotate by the driving gear, so that the rotating seat rotates relative to the U-shaped connecting seat.

[0038] Furthermore, the condensate water cleaning structure also includes an extrusion groove 7 recessed inside the U-shaped connecting seat 36, the sponge body 5 is elastically telescopically arranged in the extrusion groove 7, and initially the sponge body 5 is maintained in a connection state protruding outside the extrusion groove 7 by the elastic force, and the width of the extrusion groove 7 is smaller than the width of the sponge body 5, so that the sponge body 5 can be deformed and compressed to drain water when it is compressed into the extrusion groove 7 by force, and the U-shaped connecting seat 36 is provided with a first transmission mechanism 8 which can be rotated through the rotating seat 32 to drive the sponge body 5 to move into the extrusion groove 7.

[0039] Specifically, initially the sponge body is maintained in a connected state protruding from the outside of the extrusion groove by the elastic force. At this time, the sponge body remains elastically in contact with the end side wall of the rotating seat, and absorbs and cleans the condensed water on the end side wall of the rotating seat. Then, the first transmission mechanism is used to drive the sponge body to move into the extrusion groove due to the rotation of the rotating seat, thereby realizing the sponge body's adsorption and extrusion and drainage of condensed water in turn, avoiding the installation of an independent electrically controlled driving source to drive the sponge body, which leads to increased production and maintenance costs.

[0040] Furthermore, a drainage hole 9 is penetrated at the lower end of the extrusion groove 7, and a water collecting box 10 is connected to the lower end of the drainage hole 9 in the cooling box 2. When the sponge body is displaced into the extrusion groove by force, the sponge body is squeezed by the extrusion groove, and the condensed water adsorbed in the sponge body can be squeezed and fall and collected in the water collecting box through the drainage hole. The adsorption and cleaning of the sponge body effectively prevents the fan from blowing directly on the condensed water to cause evaporation of water vapor, which affects the dryness of the workpiece.

[0041] Further, the first transmission mechanism 8 includes a limit ring group symmetrically arranged on both sides of the U-shaped connecting seat 36, and the rotating seat 32 is concentrically arranged at the inner ring of the limit ring group; the limit ring group includes a first limit ring 81 and a second limit ring 82 concentrically arranged, a limit cavity 83 is formed between the first limit ring 81 and the second limit ring 82, and a first arc-shaped convex portion 84 protruding away from the sponge 5 is provided in the limit cavity 83 at a position corresponding to the sponge 5, and grooves 85 are respectively recessed on both sides of the rotating seat 32, and a flap 86 is rotatably arranged in the groove 85, and a first universal ball 87 is movably arranged at one end of the flap 86, and the first universal ball 87 is movably arranged in the limit cavity 83, and the first universal ball 87 can rotate with the rotating seat 32 and contact with the first arc-shaped convex portion 84 so that the flap 86 rotates and presses on the sponge 5, and at this time, the sponge 5 is displaced into the extrusion groove 7 by force.

[0042] Specifically, the first limit ring and the second limit ring in the limit ring group cooperate with the first arc-shaped convex portion to form a connected dislocated space that is laterally dislocated when viewed from a top-down angle in the limit cavity at the position of the first arc-shaped convex portion. When the universal ball at one end of the flap is located in the limit cavity except at the position of the first arc-shaped convex portion, the flap cannot rotate outward relative to the rotating seat and bulge outwardly outside the groove. When the universal ball at one end of the flap rotates and displaces to the position of the first arc-shaped convex portion with the rotating seat, the universal ball collides with the first arc-shaped convex portion to cause the flap to flip outward relative to the rotating seat and press against the sponge body, thereby driving the sponge body to displace into the extrusion groove.

[0043] Furthermore, the sponge body 5 includes a connecting plate 51 and a sponge 52 fixedly wrapped on the connecting plate 51. The width of the connecting plate 51 is smaller than the width of the extrusion groove 7. The connecting plate 51 is provided with a clearance notch 53 corresponding to the flap 86, so that the flap 86 can pass over the connecting plate 51 through the clearance notch 53 when rotating with the rotating seat 32. The connecting plate 51 is provided with a guide shaft 54 ​​at a distance on the side facing the extrusion groove 7. One end of the guide shaft 54 ​​passes through the U-shaped connecting seat 36 and is provided with a limit plate 55. A spring 56 is sleeved on the guide shaft 54 ​​between the connecting plate 51 and the extrusion groove 7. Specifically, the spring cooperates with the guide shaft to realize the elastic telescopic movement of the connecting plate relative to the depth direction of the extrusion groove, and the sponge can move into the extrusion groove with the connecting plate to be squeezed and drained by the extrusion groove.

[0044] Furthermore, the water inlet pipe 39 and the water outlet pipe 40 are both L-shaped, and the water outlet end of the water inlet pipe 39 is opposite to the water inlet end of the water outlet pipe 40, thereby effectively enhancing the fluidity of the cooling water in the cavity of the rotating seat.

[0045] Furthermore, an air duct 11 with upper and lower openings is rotatably disposed in the air outlet 4, and a second transmission mechanism 12 is disposed in the cooling box 2, which can be rotated by the rotating seat 32 to drive the air duct 11 to swing back and forth. Specifically, the second transmission mechanism can synchronously drive the air duct to swing back and forth when the rotating seat rotates, so as to realize the linkage transmission of the air duct, thereby avoiding the increase of production and maintenance costs caused by installing an independent driving source of electric control to drive the air duct.

[0046] Furthermore, the second transmission mechanism 12 includes a connecting rod 13 and a push rod 14. The air duct 11 is eccentrically rotated and arranged in the air outlet 4, so that in the initial state, the upper end of the air duct 11 is biased toward the air inlet 3 due to its own weight. The upper end of the air duct 11 is provided with a flange 15 along the edge contour. The push rod 14 is arranged in the cooling box 2 and abuts against the bottom of the flange 15, and the push rod 14 can be located between the air inlet 3 and the air outlet 4 for reciprocating movement. The abutting surface of the push rod 14 for abutting against the flange 15 is provided with a second arc-shaped protrusion 16, and the connecting rod 13 is hinged between the push rod 14 and the driving gear 62.

[0047] Specifically, a connecting rod is used to enable the driving gear to rotate and at the same time drive the push rod to reciprocate relative to the cooling box. In the initial state of the air duct, the upper end of the air duct is biased toward the air inlet due to its own weight. Therefore, when the push rod reciprocates, the second arc-shaped protrusion on the push rod can guide the flange of the lifting air duct, thereby realizing the reciprocating swing of the air duct, and then the reciprocating swing of the air duct can be used to blow air to effectively increase the coverage area of ​​cooling the workpiece.

[0048] Furthermore, a through slot 17 is passed through the upper side of the push rod 14, and two or more positioning shafts 18 are arranged on the cooling box 2 at intervals. The positioning shaft 18 is movably arranged in the through slot 17, and a limiting nut 19 is threadedly provided on the positioning shaft 18 above the push rod 14. The limiting nut is used to limit the position of the push rod so that the push rod can reciprocate relative to the two positioning shafts along the length direction of the through slot, and the limiting nut can be removed to facilitate the removal, replacement and maintenance of the push rod.

[0049] In conjunction with the drawings and the above, the basic principles and main features of the present invention and the advantages of the present invention are shown and described. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A screen printing drying online circulating air-ice water cooling device, comprising a conveyor belt (1), wherein a cooling box (2) is provided on the conveyor belt (1), characterized in that: The cooling box (2) is provided with an air inlet (3) and an air outlet (4) on the side facing the conveyor belt (1), and an air cooling device is provided inside the cooling box (2); An air cooling device, comprising a fan (31), a rotating seat (32) and a condensed water cleaning structure, wherein the rotating seat (32) has a cavity (33) therein, and a water inlet (34) and a water outlet (35) connected to the cavity (33) are respectively penetrated at the center of both sides of the rotating seat (32), wherein a U-shaped connecting seat (36) is provided in the cooling box (2), and bearing seats (37) are symmetrically provided on both inner sides of the U-shaped connecting seat (36), wherein the rotating seat (32) is rotatably arranged between the two bearing seats (37) through a sealing bearing (38), and a water inlet pipe (39) and a water outlet pipe (40) are respectively sealed and plugged in at the inner center of the two bearing seats (37), wherein the water inlet pipe (39) is correspondingly plugged in the water inlet (34), and the water outlet pipe (40) is correspondingly plugged in the water outlet (35); A condensate cleaning structure comprises a sponge body (5) symmetrically located at both ends of a rotating seat (32) and capable of abutting against the side walls of both ends of the rotating seat (32) to wipe and absorb condensate, and a driving mechanism (6) capable of driving the rotating seat (32) to rotate, wherein the rotating seat (32) is provided with a heat insulating cotton layer along the circumferential side wall.

2. The on-line circulating air-ice-water cooling device for screen printing drying according to claim 1 is characterized by: The driving mechanism (6) comprises a motor (61) arranged on one side of the U-shaped connecting seat (36); a driving gear (62) is arranged on the driving shaft of the motor (61); a transmission gear ring (63) arranged coaxially with the rotating seat (32) is provided on one side of the rotating seat (32); the driving gear (62) is connected to the transmission gear ring (63) in a transmission meshing manner.

3. The on-line circulating air-ice-water cooling device for screen printing drying according to claim 2 is characterized by: The condensate cleaning structure also includes an extrusion groove (7) recessed inside the U-shaped connecting seat (36); the sponge body (5) is elastically and telescopically arranged inside the extrusion groove (7); and initially, the sponge body (5) is subjected to elastic force to maintain a connection state protruding outside the extrusion groove (7); the width of the extrusion groove (7) is smaller than the width of the sponge body (5), so that when the sponge body (5) is compressed into the extrusion groove (7) by force, it can deform and compress to drain water; and the U-shaped connecting seat (36) is provided with a first transmission mechanism (8) that can be rotated by a rotating seat (32) to drive the sponge body (5) to move into the extrusion groove (7).

4. The on-line circulating air-ice-water cooling device for screen printing drying according to claim 3 is characterized by: A drainage hole (9) runs through the lower end of the extrusion groove (7), and a water collecting tank (10) is connected to the lower end of the drainage hole (9) in the cooling box (2).

5. The on-line circulating air-ice-water cooling device for screen printing drying according to claim 3 is characterized by: The first transmission mechanism (8) comprises a limiting ring group symmetrically arranged on both sides of the U-shaped connecting seat (36), and the rotating seat (32) is cocentrically arranged at the inner ring of the limiting ring group; the limiting ring group comprises a first limiting ring (81) and a second limiting ring (82) cocentrically arranged at intervals, a limiting cavity (83) is formed between the first limiting ring (81) and the second limiting ring (82), and a first arc-shaped convex portion protruding in a direction away from the sponge (5) is provided in the limiting cavity (83) at a position corresponding to the sponge (5). (84), grooves (85) are respectively concave on both sides of the rotating seat (32), a flap (86) is rotatably arranged in the groove (85), a first universal ball (87) is movably arranged at one end of the flap (86), the first universal ball (87) is movably arranged in the limiting cavity (83), the first universal ball (87) can rotate with the rotating seat (32) and contact with the first arc-shaped protrusion (84) so ​​that the flap (86) rotates and presses on the sponge (5), and at this time the sponge (5) is displaced into the extrusion groove (7) under force.

6. The on-line circulating air-ice-water cooling device for screen printing drying according to claim 5 is characterized by: The sponge body (5) comprises a connecting plate (51) and a sponge (52) fixedly wrapped on the connecting plate (51); the width of the connecting plate (51) is smaller than the width of the extrusion groove (7); a clearance notch (53) is provided on the connecting plate (51) corresponding to the flap (86), so that the flap (86) can pass over the connecting plate (51) through the clearance notch (53) when rotating with the rotating seat (32); a guide shaft (54) is provided on the connecting plate (51) at a distance from the side facing the extrusion groove (7); one end of the guide shaft (54) passes through the U-shaped connecting seat (36) and is provided with a limit plate (55); a spring (56) is sleeved on the guide shaft (54) between the connecting plate (51) and the extrusion groove (7).

7. The screen printing drying online circulating air-ice water cooling device according to claim 1 is characterized by: The water inlet pipe (39) and the water outlet pipe (40) are both L-shaped in appearance, and the water outlet end of the water inlet pipe (39) is opposite to the water inlet end of the water outlet pipe (40).

8. The screen printing drying online circulating air-ice water cooling device according to claim 1 is characterized by: An air duct (11) with upper and lower openings is rotatably arranged in the air outlet (4), and a second transmission mechanism (12) is arranged in the cooling box (2) and can be rotated through a rotating seat (32) to drive the air duct (11) to swing back and forth.

9. The screen printing drying online circulating air-ice water cooling device according to claim 8, characterized in that: The second transmission mechanism (12) comprises a connecting rod (13) and a push rod (14); the air duct (11) is eccentrically rotatably arranged in the air outlet (4) so ​​that the upper end of the air duct (11) is biased toward the air inlet (3) due to its own weight in an initial state; a flange (15) is arranged along the edge contour of the upper end of the air duct (11); the push rod (14) is arranged in the cooling box (2) and abuts against the bottom of the flange (15); and the push rod (14) can be located between the air inlet (3) and the air outlet (4) for reciprocating movement; a second arc-shaped convex portion (16) is provided on the abutting surface of the push rod (14) for abutting against the flange (15); and the connecting rod (13) is hinged between the push rod (14) and the driving gear (62).

10. The on-line circulating air-ice-water cooling device for screen printing drying according to claim 9, characterized in that: A through slot (17) is passed through the upper side of the push rod (14); two or more positioning shafts (18) are arranged at intervals on the cooling box (2); the positioning shafts (18) are movably arranged in the through slot (17); and a limiting nut (19) is threadedly provided on the positioning shaft (18) above the push rod (14).

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