Rolling extrusion dewatering device for silk-screen sheet cleaning line

Abstract

The invention relates to a silk-screen sheet cleaning line rolling extrusion dewatering device, which is characterized by comprising a rack, the conveying belt is arranged on the rack and is provided with a plurality of conveying rollers which are arranged along the same axis at intervals; the water removal device is arranged on the rack and comprises a plurality of groups of water absorption rollers, the plurality of groups of water absorption rollers and the plurality of conveying rollers are arranged in a staggered manner in a one-to-one correspondence manner, each group of water absorption rollers comprises an upper roller and a lower roller which are arranged at an interval, and the upper roller and the lower roller are wrapped with wood pulp sponges along the circumference; the spraying device is arranged on the rack, is positioned above the plurality of groups of water absorption rollers, and is used for spraying the wood pulp sponge in the water absorption rollers to soften the wood pulp sponge; and the switching transmission structure is arranged on the rack, is in transmission connection between the adjacent upper roller and lower roller, and is used for driving the upper roller and the lower roller to respectively displace relative to the rack so as to enable the upper roller and the lower roller to form vertical up-and-down arrangement or horizontal flush arrangement on the same horizontal plane.

Description

Technical Field

[0001] The invention particularly relates to a rolling extrusion water removal device for a screen printing sheet cleaning line. Background Art

[0002] In the screen printing process, sheets (such as metal plates, plastic substrates or glass, etc.) need to be cleaned after printing to remove ink residue and impurities. A large amount of water or solvent will adhere to the surface of the cleaned sheet. If it is not completely removed, it will lead to a longer subsequent drying time, increased energy consumption, and even oxidation, corrosion or uneven coating due to liquid residue.

[0003] The common water absorption technologies in the industry currently have the following defects: traditional water absorption materials are inefficient, and existing technologies mostly use ordinary synthetic sponges, dust-free cloths or compressed air blowing. Among them, synthetic sponges have limited water absorption and are easy to shed, and residual fibers may contaminate the precision printing surface; dust-free cloths need to be replaced frequently and are expensive; compressed air blowing consumes a lot of energy and there are safety hazards in the handling of volatile solvents.

[0004] In view of the above problems, there is an urgent need for a water removal solution that is both highly absorbent and adaptable. Summary of the invention

[0005] 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 provides a rolling extrusion water removal device for a screen printing sheet cleaning line.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A rolling extrusion water removal device for a screen printing sheet cleaning line, comprising:

[0008] frame;

[0009] A conveyor belt is arranged on a frame and has a plurality of conveyor rollers arranged at intervals along the same axis;

[0010] A dewatering device is arranged on a frame, and includes a plurality of groups of water-absorbing rollers, which are arranged in a staggered manner in a one-to-one correspondence with a plurality of conveying rollers, and each group of water-absorbing rollers includes an upper roller and a lower roller arranged at intervals, and the upper roller and the lower roller are both covered with wood pulp sponge along the circumference;

[0011] A spraying device is arranged on the frame and located above a plurality of groups of water-absorbing rollers, and is used to spray the wood pulp sponge in the water-absorbing rollers to soften the wood pulp sponge;

[0012] The switching transmission structure is arranged on the frame and is transmission-connected between the adjacent upper rollers and lower rollers to drive the upper rollers and lower rollers to move relative to the frame so that the two rollers are arranged vertically up and down or arranged horizontally and flush on the same horizontal plane.

[0013] In one embodiment, the switching transmission structure includes a rack and a transmission member, and a first transverse guide groove and a vertical guide groove respectively arranged on both sides of the frame, one end of the first transverse guide groove is connected to the upper end of the vertical guide groove, the upper roller is movably arranged in the first transverse guide groove, the lower roller is movably arranged in the vertical guide groove, the transmission member is penetrated by a second transverse guide groove, the lower roller is movably arranged in the second transverse guide groove, the transmission member is hinged to one end of the upper roller, a gear ring is arranged on one side of the transmission member concentrically with the upper roller, the rack is arranged on the frame, and the gear ring can engage with the rack as the transmission member is displaced, so that the transmission member can flip upward with the central axis of the upper roller as the center when it is displaced.

[0014] In one embodiment, a cylinder is provided on the frame, a transverse guide rail is provided on one side of the frame, a movable frame is movably provided on the transverse guide rail via a slider, a driving shaft of the cylinder is connected to the movable frame, a plurality of first connecting rods are provided on the movable frame, and the first connecting rods are hinged to the end of the upper roller one by one.

[0015] In one embodiment, the spray device includes a water tank arranged on a frame, the water tank is connected to a plurality of spray pipes, the plurality of spray pipes are arranged in one-to-one correspondence with a plurality of groups of water absorption rollers, and the length direction of the spray pipes is arranged parallel to the length direction of the water absorption rollers, and a plurality of nozzles are arranged on the spray pipes at intervals along the length direction thereof.

[0016] In one embodiment, a first cover shell is disposed on the frame, and a drainage pipe is connected to the lower side of the first cover shell, and the spray device and the water suction roller are respectively disposed in the first cover shell.

[0017] In one embodiment, a plurality of second cover shells are rotatably arranged in the first cover shell, the plurality of second cover shells are respectively arranged in one-to-one correspondence with the plurality of spray pipes, and the second cover shells can be rotatably covered on the spray pipes, and the second cover shells are provided with a transmission component that can drive the second cover shells to flip by displacement of the moving frame.

[0018] In one embodiment, the transmission component includes a second connecting rod, and both ends of the second cover shell are respectively provided with a rotating shaft, and the rotating shaft is rotatably set on the first cover shell through a bearing, the second connecting rod is connected to the rotating shaft, and a movable groove runs through the second connecting rod along its length direction, and a plurality of third connecting rods are arranged at intervals on the movable frame, and the plurality of third connecting rods are respectively arranged in a one-to-one correspondence with the plurality of second connecting rods, and a fixed shaft is provided on one side of the third connecting rod, and the fixed shaft is movably set in the movable groove.

[0019] In one embodiment, a recovery box is provided on the frame below the drain pipe, and the recovery box is connected to the water tank through a water pipe and a circulation pump.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention adopts wood pulp sponge, whose porous structure can quickly absorb liquid, and whose softness can fit the microstructure of the sheet surface to reduce residue; environmentally friendly: the raw materials are derived from renewable forest resources, biodegradable, and meet the requirements of clean production; cost controllable: the wood pulp sponge is reusable and the production process is mature, and the long-term use cost is lower than consumables such as dust-free cloth;

[0022] Due to the material properties of the wood pulp sponge, it has a high initial hardness (Shore hardness ≥ 15MPa) in a dry state. During the water absorption process, its hardness changes gradually soften (Shore hardness ≥ 10HA after water absorption), which can maintain sufficient contact pressure to ensure efficient water absorption. In addition, the wood pulp sponge can maintain sufficient contact pressure to fit the conveyed silk-screen sheet for efficient water absorption.

[0023] In addition, the transmission structure and the spray device are switched, and the upper roller and the lower roller are sprayed by the spray device, so that the wood pulp sponge in the two rollers is pre-softened, and at the same time, the upper roller and the lower roller are driven to move by the switching transmission structure. When the upper roller and the lower roller are in the same horizontal and even distribution state, the spray device can synchronously and evenly spray the upper roller and the lower roller, so that the pre-softening degree of the wood pulp sponge in the upper roller and the lower roller is kept in a roughly the same state, avoiding the problem that the upper roller and the lower roller are arranged up and down to spray, resulting in the softening water absorption degree of the wood pulp sponge in the upper roller being greater than that of the wood pulp sponge in the lower roller, resulting in a large difference in water absorption rate between the upper and lower sides of the subsequent screen printing sheet;

[0024] Then, the transmission structure is switched to drive the upper roller and the lower roller to move, so that the two rollers after pre-softening are arranged vertically up and down, and the conveyed silk-screen sheet can be moved between the upper roller and the lower roller along with the conveyor belt, and the upper and lower sides of the silk-screen sheet are simultaneously subjected to water absorption treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a front view of a rolling extrusion water removal device of a screen printing sheet cleaning line in the present invention;

[0026] Figure 2 This is one of the partial structural schematic diagrams of a rolling extrusion water removal device of a screen printing sheet cleaning line in the present invention;

[0027] Figure 3 This is one of the cross-sectional structural schematic diagrams of a rolling extrusion water removal device of a screen printing sheet cleaning line in the present invention;

[0028] Figure 4 This is a second schematic cross-sectional structure diagram of a rolling extrusion water removal device of a screen printing sheet cleaning line in the present invention;

[0029] Figure 5 This is a second partial structural schematic diagram of a rolling extrusion water removal device of a screen printing sheet cleaning line in the present invention;

[0030] Figure 6 This is a third partial structural schematic diagram of a rolling extrusion water removal device of a screen printing sheet cleaning line in the present invention;

[0031] Figure 7 It is a schematic diagram of the three-dimensional structure of the transmission member in the present invention. DETAILED DESCRIPTION

[0032] 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.

[0033] like Figure 1-Figure 7 The rolling extrusion dewatering device of a screen printing sheet cleaning line shown in the figure comprises: a frame 1; a conveyor belt 2, which is arranged on the frame 1 and has a plurality of conveyor rollers 3 arranged at intervals along the same axis; a dewatering device, which is arranged on the frame 1 and includes a plurality of groups of water absorption rollers, and the plurality of groups of water absorption rollers and the plurality of conveyor rollers 3 are arranged in a staggered manner in a one-to-one correspondence, and each group of water absorption rollers includes an upper roller 4 and a lower roller 5 arranged at intervals, and the upper roller 4 and the lower roller 5 are both covered with wood pulp sponges along the circumference; a spraying device 6, which is arranged on the frame 1 and located above the plurality of groups of water absorption rollers, and is used to spray the wood pulp sponges in the water absorption rollers to soften the wood pulp sponges; a switching transmission structure 7, which is arranged on the frame 1 and is transmission-connected between the adjacent upper rollers 4 and lower rollers 5, and is used to drive the upper rollers 4 and the lower rollers 5 to move relative to the frame 1 respectively so that the two are arranged vertically up and down or arranged horizontally flush on the same horizontal plane.

[0034] Specifically, by using wood pulp sponge, the porous structure of wood pulp sponge can quickly absorb liquid, and its softness can fit the microstructure of the sheet surface to reduce residue; environmentally friendly: the raw materials are derived from renewable forest resources, biodegradable, and meet the requirements of clean production; cost controllable: wood pulp sponge is reusable and the production process is mature, and the long-term use cost is lower than consumables such as dust-free cloth;

[0035] Due to the material properties of the wood pulp sponge, it has a high initial hardness (Shore hardness ≥ 15MPa) in a dry state. During the water absorption process, its hardness changes gradually soften (Shore hardness ≥ 10HA after water absorption), which can maintain sufficient contact pressure to ensure efficient water absorption. In addition, the wood pulp sponge can maintain sufficient contact pressure to fit the conveyed silk-screen sheet for efficient water absorption.

[0036] In addition, the transmission structure and the spray device are switched, and the upper roller and the lower roller are sprayed by the spray device, so that the wood pulp sponge in the two rollers is pre-softened, and at the same time, the upper roller and the lower roller are driven to move by the switching transmission structure. When the upper roller and the lower roller are in the same horizontal and even distribution state, the spray device can synchronously and evenly spray the upper roller and the lower roller, so that the pre-softening degree of the wood pulp sponge in the upper roller and the lower roller is kept in a roughly the same state, avoiding the problem that the upper roller and the lower roller are arranged up and down to spray, resulting in the softening water absorption degree of the wood pulp sponge in the upper roller being greater than that of the wood pulp sponge in the lower roller, resulting in a large difference in water absorption rate between the upper and lower sides of the subsequent screen printing sheet;

[0037] Then, the transmission structure is switched to drive the upper roller and the lower roller to move, so that the two rollers after pre-softening are arranged vertically up and down, and the conveyed silk-screen sheet can be moved between the upper roller and the lower roller along with the conveyor belt, and the upper and lower sides of the silk-screen sheet are simultaneously subjected to water absorption treatment.

[0038] Furthermore, the switching transmission structure 7 includes a rack 71 and a transmission member 72, and a first transverse guide groove 73 and a vertical guide groove 74 respectively arranged on both sides of the frame 1, one end of the first transverse guide groove 73 is connected to the upper end of the vertical guide groove 74, the upper roller 4 is movably arranged in the first transverse guide groove 73, and the lower roller 5 is movably arranged in the vertical guide groove 74. The transmission member 72 is penetrated by a second transverse guide groove 75, and the lower roller 5 is movably arranged in the second transverse guide groove 75. The transmission member 72 is hinged to one end of the upper roller 4, and a gear ring 80 is arranged on one side of the transmission member 72 in the same center as the upper roller 4. The rack 71 is arranged on the frame 1, and the gear ring 80 can be movably engaged with the rack 71 as the transmission member 72 is displaced, so that the transmission member 72 can be turned upward with the central axis of the upper roller 4 as the center when it is displaced.

[0039] Because the first transverse guide groove is connected with the upper end of the vertical guide groove, when the lower roller moves along the vertical guide groove to the upper end of the vertical guide groove, the lower roller and the upper roller located in the first transverse guide groove are in a level and flush arrangement state. Conversely, when the upper roller moves along the first transverse guide groove to the upper end of the vertical guide groove, the upper roller and the lower roller located in the vertical guide groove are in a vertical up and down arrangement state.

[0040] Specifically, initially the upper roller and the lower roller are in a vertical up-and-down arrangement state, and the upper roller is driven to move along the first transverse guide groove, thereby driving the transmission member to be displaced. At this time, the transmission member is displaced so that the second transverse guide groove of the transmission member moves laterally relative to the lower roller. When the transmission member is displaced, the gear ring located thereon engages with the rack, causing the transmission member to shift and flip upward with the central axis of the upper roller as the center, and then the second transverse guide groove of the transmission member lifts the lower roller as it flips upward, causing the lower roller to shift upward along the vertical guide groove until the upper roller and the lower roller are in a flush arrangement state at the same level, thereby realizing the switching of the displacement position arrangement of the upper roller and the lower roller, and through the second transverse guide groove, the upper roller is displaced to give way and then the lower roller is driven upward, thereby realizing the sequential displacement of the upper roller and the lower roller, thereby avoiding the interference during the displacement of the upper roller and the lower roller, which leads to the problem of mutual friction and wear of the wood pulp sponge when in a dry and hard state.

[0041] Furthermore, a cylinder 76 is provided on the frame 1, a transverse guide rail 77 is provided on one side of the frame 1, a movable frame 78 is movably provided on the transverse guide rail 77 through a slider, a driving shaft of the cylinder 76 is connected to the movable frame 78, a plurality of first connecting rods 79 are provided on the movable frame 78, and the first connecting rods 79 are hinged to the ends of the upper roller 4 one by one. Then, the movable frame is driven to move along the transverse guide rail by the cylinder, and then the upper roller is driven to move along the first transverse guide groove by the first connecting rod.

[0042] Furthermore, the spray device 6 includes a water tank 61 disposed on the frame 1, the water tank 61 is connected to a plurality of spray pipes 62, the plurality of spray pipes 62 are arranged one by one with a plurality of groups of water absorption rollers, and the length direction of the spray pipes 62 is arranged parallel to the length direction of the water absorption roller, and a plurality of nozzles 63 are arranged at intervals along the length direction of the spray pipes 62. Specifically, a shunt pipe is connected between the plurality of spray pipes and the water tank, and a water pump is arranged on the shunt pipe, and the clean water in the water tank is sprayed onto the wood pulp sponge in the upper roller and the lower roller through the shunt pipe, the spray pipe and the nozzle by the water pump.

[0043] Furthermore, the frame 1 is provided with a first housing 64, and the lower side of the first housing 64 is connected with a drain pipe 65, and the spray device 6 and the water suction drum are respectively arranged in the first housing 64. Thus, the first housing is used to effectively prevent the overflow of clean water.

[0044] Furthermore, a plurality of second covers 66 are rotatably arranged in the first cover shell 64, and the plurality of second covers 66 are respectively arranged one by one with the plurality of spray pipes 62, and the second covers 66 can be rotatably covered on the spray pipes 62, and a transmission member 8 is provided on the second cover shell 66, which can be driven to flip by the displacement of the moving frame 78. Specifically, in the initial state, the second cover shell corresponds to the spray pipe, and at this time, the upper roller and the lower roller are in a vertically arranged vertical connection state, when the moving frame is driven to move and drive the upper roller to move, the second cover shell can be synchronously driven to flip through the transmission member, so that when the upper roller and the lower roller are displaced to the same level and flush state, the second cover shell is in an open state, and when the spray pre-softening upper roller and the lower roller are reset to be arranged vertically up and down, the second cover shell is synchronously closed, and the second cover shell effectively avoids the problem of dripping and leaking of the nozzle, and avoids dripping and leaking of the nozzle when the upper roller and the lower roller absorb water, thereby affecting the efficiency and quality of water blowing.

[0045] Further, the transmission member 8 includes a second connecting rod 81, and a rotating shaft (not marked in the figure) is respectively provided at both ends of the second housing 66, and the rotating shaft (not marked in the figure) is rotatably arranged on the first housing 64 through a bearing, and the second connecting rod 81 is connected to the rotating shaft, and a movable groove 83 is penetrated on the second connecting rod 81 along its length direction, and a plurality of third connecting rods 84 are arranged at intervals on the mobile frame 78, and the plurality of third connecting rods 84 are respectively arranged one-to-one with the plurality of second connecting rods 81, and a fixed shaft (not marked in the figure) is movably arranged in the movable groove 83. Then, when the mobile frame is driven to move, the fixed shaft of the third connecting rod moves accordingly and presses against the inner side of the movable groove of the second connecting rod, and the fixed shaft moves along the movable groove to cause the second connecting rod to rotate in a circle with the rotating shaft as the center, and then synchronously drives the second housing to perform a flipping opening or closing action switch relative to the spray pipe.

[0046] Furthermore, a recovery box 86 is provided on the frame 1 below the drain pipe 65, and the recovery box 86 is connected to the water tank 61 through a water pipe (not shown) and a circulation pump (not shown). Clean water is collected in the recovery box through the drain pipe and can be circulated to the water tank for use through the circulation pump.

[0047] 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 rolling extrusion dewatering device for a screen printing sheet cleaning line, characterized in that: include: Rack (1); A conveyor belt (2) is arranged on a frame (1) and has a plurality of conveyor rollers (3) arranged at intervals along the same axis; A dewatering device is arranged on a frame (1), comprising a plurality of groups of water-absorbing rollers, wherein the plurality of groups of water-absorbing rollers and the plurality of conveying rollers (3) are arranged in a staggered manner in a one-to-one correspondence, and each group of water-absorbing rollers comprises an upper roller (4) and a lower roller (5) arranged in an interval manner, and the upper roller (4) and the lower roller (5) are both covered with a wood pulp sponge along their circumferences; A spraying device (6) is arranged on the frame (1) and located above a plurality of groups of water-absorbing rollers, and is used to spray the wood pulp sponge in the water-absorbing rollers to soften the wood pulp sponge; A switching transmission structure (7) is arranged on the frame (1) and is drivingly connected between the adjacent upper rollers (4) and lower rollers (5) to drive the upper rollers (4) and lower rollers (5) to move relative to the frame (1) so that the two rollers are arranged vertically up and down or arranged horizontally and flush on the same horizontal plane.

2. The rolling extrusion dewatering device for a screen printing sheet cleaning line according to claim 1, characterized in that: The switching transmission structure (7) comprises a rack (71) and a transmission member (72), and a first transverse guide groove (73) and a vertical guide groove (74) respectively arranged on both sides of the frame (1), one end of the first transverse guide groove (73) is connected to the upper end of the vertical guide groove (74), the upper roller (4) is movably arranged in the first transverse guide groove (73), the lower roller (5) is movably arranged in the vertical guide groove (74), and the transmission member (72) is penetrated by a second transverse guide groove (73). 5), the lower roller (5) is movably arranged in the second transverse guide groove (75), the transmission member (72) is hinged to one end of the upper roller (4), a gear ring (80) is arranged on one side of the transmission member (72) and the upper roller (4) in the same center, the rack (71) is arranged on the frame (1), and the gear ring (80) can be movably engaged with the rack (71) as the transmission member (72) moves, so that the transmission member (72) can be turned upward with the central axis of the upper roller (4) as the center when it moves.

3. The rolling extrusion dewatering device for a screen printing sheet cleaning line according to claim 1, characterized in that: The frame (1) is provided with a cylinder (76), a transverse guide rail (77) is provided on one side of the frame (1), a movable frame (78) is movably provided on the transverse guide rail (77) via a slider, a driving shaft of the cylinder (76) is connected to the movable frame (78), a plurality of first connecting rods (79) are provided on the movable frame (78), and the first connecting rods (79) are hinged to the ends of the upper roller (4) one by one.

4. The rolling extrusion dewatering device for a screen printing sheet cleaning line according to claim 3, characterized in that: The spray device (6) comprises a water tank (61) arranged on the frame (1), the water tank (61) is connected to a plurality of spray pipes (62), the plurality of spray pipes (62) are arranged in one-to-one correspondence with a plurality of groups of water absorption rollers, and the length direction of the spray pipes (62) is arranged parallel to the length direction of the water absorption rollers, and a plurality of spray heads (63) are arranged on the spray pipes (62) at intervals along the length direction thereof.

5. The rolling extrusion dewatering device for a screen printing sheet cleaning line according to claim 4, characterized in that: The frame (1) is provided with a first cover shell (64), and the lower side of the first cover shell (64) is connected to a drainage pipe (65), and the spray device (6) and the water absorption roller are respectively arranged in the first cover shell (64).

6. The rolling extrusion dewatering device for a screen printing sheet cleaning line according to claim 5, characterized in that: A plurality of second cover shells (66) are rotatably arranged inside the first cover shell (64), and the plurality of second cover shells (66) are respectively arranged in one-to-one correspondence with the plurality of spray pipes (62). The second cover shells (66) can rotatably cover the spray pipes (62), and a transmission component (8) is provided on the second cover shell (66) which can be driven to flip by displacement of a moving frame (78).

7. The rolling extrusion dewatering device for a screen printing sheet cleaning line according to claim 6, characterized in that: The transmission component (8) comprises a second connecting rod (81), and a rotating shaft is respectively provided at both ends of the second cover shell (66). The rotating shaft is rotatably arranged on the first cover shell (64) through a bearing. The second connecting rod (81) is connected to the rotating shaft, and a movable groove (83) runs through the second connecting rod (81) along its length direction. A plurality of third connecting rods (84) are arranged at intervals on the movable frame (78), and the plurality of third connecting rods (84) are respectively arranged in one-to-one correspondence with the plurality of second connecting rods (81). A fixed shaft is provided on one side of the third connecting rod (84), and the fixed shaft is movably arranged in the movable groove (83).

8. The rolling extrusion water removal device for a screen printing sheet cleaning line according to claim 6, characterized in that: A recovery box (86) is provided on the frame (1) below the drainage pipe (65), and the recovery box (86) is connected to the water tank (61) through a water pipe and a circulation pump.

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