CN217598079U

CN217598079U - Dampening device of printing machine

Info

Publication number: CN217598079U
Application number: CN202221740631.3U
Authority: CN
Inventors: 秦秀飞
Original assignee: Chongqing Guangwentang Electromechanical Equipment Co ltd
Current assignee: Chongqing Guangwentang Electromechanical Equipment Co ltd
Priority date: 2022-07-07
Filing date: 2022-07-07
Publication date: 2022-10-18
Anticipated expiration: 2032-07-07

Abstract

The utility model discloses a wetting device of a printing machine, which comprises a frame and a water homogenizing rod, wherein the frame comprises symmetrically arranged side plates, and two ends of the water homogenizing rod can axially float and can be rotationally arranged on the side plates through a shaft sleeve component; the outer side of one side plate is provided with a pendulum shaft which is arranged in parallel; one end of the water homogenizing stick penetrates through the corresponding side plate and is provided with two baffle rings which are formed by protruding along the radial direction, and the baffle rings and the swing shaft are positioned on the same side of the same side plate; a first swing rod arranged along the radial direction is fixed on the swing shaft, a shifting column which is arranged towards the baffle rings in a protruding manner is arranged at the end part of the first swing rod, the shifting column is positioned between the two baffle rings, and the diameter of the shifting column is matched with the distance between the two baffle rings; the swing shaft is also fixedly provided with a second swing rod arranged along the direction deviating from the corresponding side plate, the end part of the second swing rod is hinged with a first connecting rod, the first connecting rod is arranged vertically, and the other end of the first connecting rod is hinged with the output end of the first rotary driving mechanism eccentrically. The utility model has the advantages of the processing degree of difficulty is low, is favorable to reducing processing cost.

Description

Wetting device of printing machine

Technical Field

The utility model relates to a printing technology field, especially relate to a damping device of printing machine.

Background

Offset printing utilizes the principle that oil and water are not mixed to print. In addition to consuming ink during printing, the blank part of the printing plate must be constantly wetted with water, i.e. before the printing plate is inked, a lubricating process is necessary, i.e. dampening solution is required during printing, so that a dampening system is provided on the offset press to wet the blank part of the printing plate with an appropriate amount of water, in conjunction with means for controlling and regulating the amount of water.

Current humidification device is including setting gradually out the water rod, pass the water rod, even water rod with the water rod, it is used for adsorbing water from the basin to go out the water rod, it swings between water rod and even water rod to pass the water rod, be used for contacting out the water rod and adsorb partial moisture after, with even water rod contact, on transferring adsorbed moisture to even water rod, even water rod and the contact of water rod each other, and rotate under the friction drive of water rod, on passing moisture to the water rod, finally through the water rod with the printing plate contact, reach moist purpose. In order to avoid forming strip water ripple on the even water rod on the moisture inequality causes the version, need let even water rod along axial float usually, current even water rod mainly realizes axial float through cylindrical cam mechanism, and this structure needs the groove of processing cylindrical cam, leads to the processing cost height, and easy wearing and tearing lead to the part to become invalid.

SUMMERY OF THE UTILITY MODEL

To the not enough of above-mentioned prior art, the utility model aims to solve the technical problem that: how to provide a processing degree of difficulty is low, is favorable to reducing the humidification device of processing cost's printing machine.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a wetting device of a printing machine comprises a rack and a water homogenizing roller, wherein the rack comprises symmetrically arranged side plates, and two ends of the water homogenizing roller can axially float and can be rotatably arranged on the side plates through a shaft sleeve assembly; the side plate structure is characterized in that a swing shaft arranged in parallel is arranged on the outer side of one side plate, and two ends of the swing shaft are rotatably arranged on the side plates through bearing seats; one end of the water homogenizing stick penetrates through the corresponding side plate and is provided with two baffle rings which are formed by protruding along the radial direction, and the baffle rings and the swing shaft are positioned on the same side of the same side plate; a first swing rod arranged along the radial direction is fixed on the swing shaft, a shifting column protruding towards the stop rings is arranged at the end part of the first swing rod, the shifting column is positioned between the two stop rings, and the diameter of the shifting column is matched with the distance between the two stop rings; the swing shaft is further fixed with a second swing rod arranged along the direction deviating from the corresponding side plate, the end part of the second swing rod is hinged with a first connecting rod, the first connecting rod is arranged vertically, and the other end of the first connecting rod is hinged with the output end of the first rotary driving mechanism eccentrically.

In the structure, because the tip of first connecting rod articulates on first rotary driving mechanism's output eccentrically, when first rotary driving mechanism rotated, first connecting rod reciprocated under the drive of eccentric pin joint, thereby promote articulated second pendulum rod luffing motion with it, because the second pendulum rod is fixed on the pendulum shaft, and simultaneously, first pendulum rod and pendulum shaft fixed connection, make the tip of first pendulum rod along the axial swing of even water rod, and the tip of first pendulum rod is provided with dials the post, and dial the post between two fender rings of even water rod, finally realize the axial float of even water rod through dialling the reciprocal two fender rings of promotion of post. Each part of the device has simple structure and easier processing, thereby reducing the processing cost. Maintenance or replacement can also be performed at lower cost once wear has occurred.

Further, dial the post including installing the stand on first pendulum rod, the tip cover of stand is equipped with the cover of dialling replaceably, dial the external diameter of cover and two keep off the interval phase-match of ring.

Because the water homogenizing rod in the working state still needs to rotate in the process of moving, relative abrasion exists between the shifting sleeve and the baffle ring, once the abrasion occurs, the shifting sleeve can be replaced for maintenance, the cost is lower, and the shifting rod is more convenient and fast.

Furthermore, the side plate is provided with an installation groove which is arranged along the axial direction of the water homogenizing stick in a through mode, a shaft sleeve is arranged in the installation groove, the inner diameter of the shaft sleeve is matched with the diameter of a rotating shaft of the water homogenizing stick, and the rotating shaft of the water homogenizing stick can move along the axial direction and rotate along the axial direction relatively.

Furthermore, the side plate is also provided with a threaded rod arranged along the depth direction of the mounting groove, a pressing block is arranged on the threaded rod in a penetrating manner, the pressing block is provided with a pressing rod formed by extending towards the mounting groove, and the end part of the pressing rod is abutted against the shaft sleeve; the outer end of the threaded rod is also provided with a nut, and a spring is arranged between the nut and the pressing block in a compression mode.

Further, still have the basin that the level set up in the frame and rotationally set up two go out the water rod on the curb plate, it is located to go out the water rod be close to in the basin one side of even water rod, go out the water rod and even water rod between still have parallel arrangement's water rod, the both ends of passing the water rod rotationally articulate there is the swing arm, two the other end fixedly connected with swing arm axle of swing arm, rotatable the installing in both ends of swing arm axle on the curb plate, the one end of swing arm axle is passed and is corresponded the curb plate to install first company's board, first link plate is kept away from the position of swing arm axle articulates there is the second connecting rod, the second connecting rod is along vertical setting, and the other end eccentrically articulates at the output of second rotary driving mechanism, makes it can swing between water rod and water rod to pass the water rod, and respectively with go out water rod and even water rod contact.

Like this, because the second connecting rod articulates at the output of second rotary driving mechanism eccentrically, the output of second rotary driving mechanism will drive the second connecting rod after rotating, swing arm axle reciprocating rotation, make the epaxial swing arm of fixed connection at swing arm swing and contact between play water rod and uniform water rod, go out water rod from the basin absorbent water through with pass water rod contact after, transmit on the pass water rod, pass water rod swing to uniform water rod contact after, transmit water to uniform water rod.

Furthermore, one end of the water outlet rod penetrates through the corresponding side plate, a second connecting plate is installed through a ratchet wheel and pawl mechanism, the position, far away from the water outlet rod, of the second connecting plate is hinged with a third connecting rod, the third connecting rod is vertically arranged, and the other end of the third connecting rod is eccentrically hinged to the output end of a third rotary driving mechanism.

Therefore, the third rotary driving mechanism drives the third connecting rod to swing up and down in a reciprocating mode through the eccentric structure, the second connecting plate swings around the axis of the water outlet stick in a reciprocating mode, and due to the fact that the ratchet wheel and pawl mechanism is arranged between the second connecting plate and the water outlet stick, the reciprocating swing of the second connecting plate can only drive the water outlet stick to intermittently rotate in one direction, and therefore the water absorption amount of the water outlet stick in the water tank can be controlled.

Furthermore, the water outlet stick is also provided with a limiting plate arranged in parallel with the second connecting plate, the limiting plate can be sleeved on the water outlet stick in a relatively rotating manner, the limiting plate is provided with a limiting column protruding towards the second connecting plate, the second connecting plate is provided with a limiting part extending outwards along the radial direction, and the distance between the limiting part and the axis of the water outlet stick is greater than the axial distance between the limiting column and the water outlet stick; a compensating spring is connected between the limiting plate and the second connecting plate, so that the limiting part of the second connecting plate is abutted against the limiting column along the rotation direction of the water outlet stick; the frame is further provided with a limiting mechanism capable of adjusting the position of the limiting end, the limiting plate is provided with a first limiting block protruding in the thickness direction, and the first limiting block is located in front of the limiting end of the limiting mechanism in the rotating direction of the water outlet stick.

Like this, when third connecting rod pulling second even board forward rotation, the spacing post that the spacing portion of second even board promoted the limiting plate rotates together, at this moment, ratchet pawl mechanism drives out the water rod and turns to the rotation, when third connecting rod pulling second even board antiport, the second is even the board and passes through the same antiport of compensating spring pulling limiting plate, until first stopper on the limiting plate and limiting mechanism's spacing end contact, at this moment, the limiting plate can't continue to rotate, and the second even board continues antiport under the effect of third connecting rod, tensile compensating spring, it is reverse after reaching the maximum stroke until the third connecting rod. The rotation angle of the water outlet stick can be controlled each time by adjusting the position of the limiting end of the limiting mechanism, so that the water absorption capacity of the water outlet stick is controlled.

Furthermore, the limiting mechanism comprises an adjusting plate which is rotatably sleeved on the water outlet stick, a second limiting block which protrudes towards the limiting plate is arranged on the adjusting plate, the first limiting block is positioned on one side of the limiting plate, which faces towards the adjusting plate, and the first limiting block and the second limiting block are arranged oppositely in the circumferential direction; the edge of the adjusting plate is provided with worm gear teeth; the worm is rotatably arranged on the side plate, and a handle is arranged at the end part of the worm.

Like this, rotate the worm through the handle, just can drive the regulating plate and rotate around the water rod, and then adjust the interval between first stopper and the second stopper to the realization is to the adjustment of water rod turned angle at every turn, the control volume of absorbing water.

Furthermore, still have in the frame with even water rod parallel arrangement the water rod, the both ends of going the water rod are rotationally installed on the curb plate, going the water rod with even water rod frictional contact, going to install the gear that is used for connecting driving system on the water rod.

Furthermore, a water kettle is further arranged on the rack and is positioned above the water tank.

To sum up, the utility model has the advantages of the processing degree of difficulty is low, is favorable to reducing processing cost.

Drawings

Fig. 1 and fig. 2 are schematic perspective views of an embodiment of the present invention.

Fig. 3 is a schematic side view of the embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a limiting mechanism portion in an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to examples.

In the specific implementation: as shown in fig. 1 to 4, a dampening unit of a printing machine comprises a frame 1 and a water homogenizing rod 2, wherein the frame 1 comprises symmetrically arranged side plates 11, and two ends of the water homogenizing rod 2 can axially float through a shaft sleeve component 3 and are rotatably arranged on the side plates 11; the outer side of one of the side plates 11 is provided with a pendulum shaft 12 which is arranged in parallel, and two ends of the pendulum shaft 12 are rotatably arranged on the side plates 11 through bearing seats; one end of the water homogenizing stick 2 penetrates through the corresponding side plate 11 and is provided with two baffle rings 21 which are formed in a protruding mode along the radial direction, and the baffle rings 21 and the swing shaft 12 are located on the same side of the same side plate 11; a first swing rod 13 arranged along the radial direction is fixed on the swing shaft 12, a shifting column 14 arranged towards the stop ring 21 in a protruding manner is arranged at the end part of the first swing rod 13, the shifting column 14 is positioned between the two stop rings 21, and the diameter of the shifting column is matched with the distance between the two stop rings 21; the swing shaft 12 is further fixed with a second swing rod 15 arranged along the direction deviating from the corresponding side plate 11, the end portion of the second swing rod 15 is hinged with a first connecting rod 16, the first connecting rod 16 is vertically arranged, and the other end of the first connecting rod is eccentrically hinged with the output end of the first rotary driving mechanism.

During implementation, the shifting column 14 comprises an upright column installed on the first swing rod 13, a shifting sleeve is sleeved at the end part of the upright column in a replaceable manner, and the outer diameter of the shifting sleeve is matched with the distance between the two baffle rings 21.

When in implementation, the side plate 11 is provided with an installation groove which is arranged along the axial direction of the water homogenizing stick 2 in a penetrating way, the installation groove is internally provided with a shaft sleeve 31, the inner diameter of the shaft sleeve 31 is matched with the diameter of the rotating shaft of the water homogenizing stick 2, so that the rotating shaft of the water homogenizing stick 2 can be opposite to the shaft sleeve 31 and can move along the axial direction and rotate along the axial direction.

In implementation, the side plate 11 is further provided with a threaded rod 32 arranged along the depth direction of the mounting groove, a pressing block 33 is arranged on the threaded rod 32 in a penetrating manner, the pressing block 33 is provided with a pressing rod 34 formed by extending towards the mounting groove, and the end part of the pressing rod 34 is abutted against the shaft sleeve 31; the outer end of the threaded rod 32 is also provided with a nut 35, and a spring 36 is arranged between the nut 35 and the pressing block 33 in a compression mode.

During implementation, still have the basin 4 of level setting and rotationally set up two in the frame 1 go out water rod 5 on the curb plate 11, it is located to go out water rod 5 be close to in the basin 4 one side of even water rod 2, it still has parallel arrangement's water-transferring rod 6 to go out between water rod 5 and the even water rod 2, water-transferring rod 6's both ends rotationally articulate there is swing arm 61, two swing arm 61's other end fixedly connected with swing arm axle 62, swing arm axle 62's rotatable the installing in both ends on curb plate 1, corresponding is passed to swing arm axle 62's one end curb plate 1 to install first link 63, first link 63 keeps away from swing arm axle 62's position articulates there is second connecting rod 64, second connecting rod 64 is along vertical setting, and the other end eccentrically articulates at second rotary drive mechanism's output, makes water-transferring rod 6 can swing between water rod 5 and even water rod 2, and respectively with go out water rod 5 and the even water rod 2 contact. The rack 1 is also provided with a water kettle 9, and the water kettle 9 is positioned above the water tank 4.

Like this, because the second connecting rod articulates at the output of second rotary driving mechanism eccentrically, the output of second rotary driving mechanism will drive the second connecting rod after rotating, swing arm axle reciprocating rotation, make fixed connection swing arm on the swing arm axle swing and contact between play water rod and water homogenizing rod, go out water rod from the basin adsorbed water through with pass water rod contact after, transmit on the water rod, pass water rod swing to water homogenizing rod contact after, transmit water to water homogenizing rod.

When the water outlet device is used, one end of the water outlet stick 5 penetrates through the corresponding side plate 11, a second connecting plate 51 is installed through a ratchet wheel and pawl mechanism, a third connecting rod 52 is hinged to the position, far away from the water outlet stick 5, of the second connecting plate 51, the third connecting rod 52 is vertically arranged, and the other end of the third connecting rod is eccentrically hinged to the output end of a third rotary driving mechanism.

When the water outlet stick is used, the water outlet stick 5 is further provided with a limiting plate 53 arranged in parallel with the second connecting plate 51, the limiting plate 53 is sleeved on the water outlet stick 5 in a relatively rotating manner, the limiting plate 53 is provided with a limiting column 54 protruding towards the second connecting plate 51, the second connecting plate 51 is provided with a limiting part extending outwards in the radial direction, and the distance between the limiting part and the axis of the water outlet stick 5 is greater than the distance between the limiting column 54 and the axis of the water outlet stick 5; a compensating spring 55 is connected between the limiting plate 53 and the second connecting plate 51, so that the limiting part of the second connecting plate 51 is abutted against the limiting column 54 along the rotating direction of the water outlet stick 5; the frame 1 is further provided with a limiting mechanism 7 with an adjustable limiting end position, the limiting plate 53 is provided with a first limiting block 56 which is arranged in a protruding mode along the thickness direction, and the first limiting block 56 is located in front of the limiting end of the limiting mechanism 7 in the rotating direction of the water outlet stick 5.

In implementation, the limiting mechanism 7 includes an adjusting plate 71 rotatably sleeved on the water outlet stick 5, the adjusting plate 71 has a second limiting block 72 protruding toward the limiting plate 53, the first limiting block 56 is located on one side of the limiting plate 53 facing the adjusting plate 71, and the first limiting block 56 and the second limiting block 72 are arranged opposite to each other in the circumferential direction; worm gear teeth are arranged on the edge of the adjusting plate 71; the side plate structure further comprises a worm 73 which is matched with the gear teeth, the worm 73 is rotatably arranged on the side plate 11, and a handle is arranged at the end part of the worm 73.

When in implementation, the machine frame 1 is also provided with a water stick 8 which is arranged in parallel with the water homogenizing stick 2, two ends of the water stick 8 are rotatably arranged on the side plate 11, the water stick 8 is in friction contact with the water homogenizing stick 2, and a gear used for connecting a power system is arranged on the water stick 8.

In specific implementation, the first rotary driving mechanism, the second rotary driving mechanism and the third rotary driving mechanism may be motors independently arranged, or may be connected to a rotating shaft rotating on the printing machine.

Adopt the utility model discloses a moistening device, the theory of operation as follows:

the driving system that the water rod passes through the gear connection printing machine, the water rod is rotated in the drive, because water rod and even water rod friction contact are being gone up, make even water rod keep rotating under the drive of water rod, pass the water rod swing between even water rod and play water rod, adsorb the back with the water on the water rod, swing to contacting with even water rod, and rotate under the drive of even water rod, transmit water to even water rod, even water rod is under the effect of dialling the post, the axial float, thereby pass moisture more evenly to the water rod on, contact with the printing plate by water rod at last, reach moist purpose.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A wetting device of a printing machine comprises a rack (1) and a water-homogenizing roller (2), wherein the rack (1) comprises symmetrically arranged side plates (11), and two ends of the water-homogenizing roller (2) can axially float through a shaft sleeve component (3) and can be rotatably arranged on the side plates (11); the side plate structure is characterized in that the outer side of one side plate (11) is provided with a swing shaft (12) which is arranged in parallel, and two ends of the swing shaft (12) are rotatably arranged on the side plates (11) through bearing seats; one end of the water homogenizing stick (2) penetrates through the corresponding side plate (11), and is provided with two baffle rings (21) which are formed in a protruding mode along the radial direction, and the baffle rings (21) and the swing shaft (12) are located on the same side of the same side plate (11); a first swing rod (13) which is arranged along the radial direction is fixed on the swing shaft (12), a shifting column (14) which is arranged towards the blocking rings (21) in a protruding mode is arranged at the end portion of the first swing rod (13), the shifting column (14) is located between the two blocking rings (21), and the diameter of the shifting column is matched with the distance between the two blocking rings (21); the swing shaft (12) is further fixedly provided with a second swing rod (15) which is arranged along the direction deviating from the corresponding side plate (11), the end part of the second swing rod (15) is hinged with a first connecting rod (16), the first connecting rod (16) is vertically arranged, and the other end of the first connecting rod is eccentrically hinged at the output end of the first rotary driving mechanism.

2. Dampening unit according to claim 1, characterized in that the pickup cylinder (14) comprises a column mounted on the first swing link (13), the end of the column being exchangeably fitted with a pickup sleeve, the outer diameter of which matches the spacing of the two stop rings (21).

3. The dampening device of the printing machine according to claim 1, wherein the side plate (11) is provided with a mounting groove which is arranged in a penetrating way along the axial direction of the water homogenizing roller (2), a shaft sleeve (31) is arranged in the mounting groove, the inner diameter of the shaft sleeve (31) is matched with the diameter of the rotating shaft of the water homogenizing roller (2), so that the rotating shaft of the water homogenizing roller (2) can move along the axial direction and rotate along the axial direction relative to the shaft sleeve (31).

4. The dampening device of the printing machine according to claim 3, wherein the side plate (11) is further provided with a threaded rod (32) arranged along the depth direction of the mounting groove, a pressing block (33) is arranged on the threaded rod (32) in a penetrating way, a pressing rod (34) formed by extending towards the mounting groove is arranged on the pressing block (33), and the end part of the pressing rod (34) abuts against the shaft sleeve (31); the outer end of the threaded rod (32) is further provided with a nut (35), and a spring (36) is arranged between the nut (35) and the pressing block (33) in a compression mode.

5. The dampening device of the printing machine according to claim 1, wherein the frame (1) further has a horizontally disposed water tank (4) and a water outlet roller (5) rotatably disposed on the two side plates (11), the water outlet roller (5) is disposed on one side of the water tank (4) close to the water homogenizing roller (2), a parallel water delivery roller (6) is further disposed between the water outlet roller (5) and the water homogenizing roller (2), two ends of the water delivery roller (6) are rotatably hinged with swing arms (61), the other ends of the two swing arms (61) are fixedly connected with swing arm shafts (62), two ends of the swing arm shafts (62) are rotatably mounted on the side plates (11), one ends of the swing arm shafts (62) penetrate through the corresponding side plates (11) and are provided with first connecting plates (63), positions of the first connecting plates (63) far away from the swing arm shafts (62) are hinged with second connecting rods (64), the second connecting rods (64) are vertically disposed, and the other ends of the swing arms are hinged with the second connecting rods (6) eccentrically between the water delivery mechanisms (5) and the water outlet roller (2) to drive the water homogenizing roller (5) and the water homogenizing roller (2) to swing.

6. The dampening unit of a printing machine according to claim 5, characterized in that one end of the water outlet roller (5) passes through the corresponding side plate (11) and is provided with a second connecting plate (51) by means of a ratchet-pawl mechanism, the second connecting plate (51) is hinged with a third connecting rod (52) at a position far away from the water outlet roller (5), the third connecting rod (52) is vertically arranged, and the other end is eccentrically hinged with the output end of a third rotary driving mechanism.

7. The dampening device of the printing machine according to claim 6, wherein the water outlet roller (5) further has a limiting plate (53) arranged side by side with the second connecting plate (51), the limiting plate (53) is relatively rotatably sleeved on the water outlet roller (5), the limiting plate (53) has a limiting post (54) protruding towards the second connecting plate (51), the second connecting plate (51) has a limiting portion extending radially outward, and the distance between the limiting portion and the axis of the water outlet roller (5) is greater than the distance between the limiting post (54) and the axis of the water outlet roller (5); a compensating spring (55) is connected between the limiting plate (53) and the second connecting plate (51), so that the limiting part of the second connecting plate (51) is abutted against the limiting column (54) along the rotating direction of the water outlet stick (5); still have stop gear (7) of adjustable spacing end position on frame (1), first stopper (56) along the outstanding setting of thickness direction have on limiting plate (53), first stopper (56) are in be located on the rotation direction of water outlet rod (5) the spacing end the place ahead of stop gear (7).

8. The dampening device of the printing machine according to claim 7, wherein the limiting mechanism (7) comprises an adjusting plate (71) rotatably fitted over the water outlet roller (5), the adjusting plate (71) has a second limiting block (72) protruding toward the limiting plate (53), the first limiting block (56) is located on the side of the limiting plate (53) toward the adjusting plate (71), and the first limiting block (56) and the second limiting block (72) are disposed opposite to each other in the circumferential direction; the edge of the adjusting plate (71) is provided with worm gear teeth; the novel gear box is characterized by further comprising a worm (73) matched with the gear teeth, the worm (73) is rotatably mounted on the side plate (11), and a handle is arranged at the end portion of the worm (73).

9. The dampening device of the printing machine according to claim 5, wherein the frame (1) is further provided with a water application roller (8) arranged in parallel with the water distribution roller (2), both ends of the water application roller (8) are rotatably arranged on the side plates (11), the water application roller (8) is in frictional contact with the water distribution roller (2), and the water application roller (8) is provided with a gear for connecting a power system.

10. A dampening arrangement for printing presses according to claim 5, characterized in that the frame (1) is also provided with a water kettle (9), said kettle (9) being located above the water trough (4).