CN209851779U - Multi-color-register flat screen curved surface printing machine - Google Patents
Multi-color-register flat screen curved surface printing machine Download PDFInfo
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- CN209851779U CN209851779U CN201920360101.8U CN201920360101U CN209851779U CN 209851779 U CN209851779 U CN 209851779U CN 201920360101 U CN201920360101 U CN 201920360101U CN 209851779 U CN209851779 U CN 209851779U
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Abstract
The utility model relates to a many chromatic flat otter board curved surface calico printing machine, its characterized in that: the printing machine comprises a printing station with flat screens, curved platen assemblies for supporting printing stocks, platen track driving mechanisms connected with the curved platen assemblies and driving the curved platen assemblies to circularly translate according to a closed track, and follow-up driving mechanisms for driving the flat screens to synchronously translate the screens; the die roller rotation driving mechanism is used for driving the curved surface platen assemblies positioned at all printing stations to synchronously rotate, is provided with a clutch driving assembly used for driving the die roller rotation driving mechanism to be far away from or close to the rotating shaft to realize torque transmission or disengagement, and further comprises a die roller angle locking mechanism. The utility model has the advantages that: the rotation of the rotating shaft can be realized by adopting a centralized synchronous driving mode, the problem of moving interference of a rotating shaft driving mechanism is avoided, and then multi-color-register high-precision printing is smoothly realized on the elliptical silk screen printing machine.
Description
Technical Field
The utility model relates to a polychrome calico printing machine, in particular to flat otter board curved surface calico printing machine of many chromatic covers.
Background
Curved surface printing refers to a general name of printing modes for printing a printing stock with a curved surface, curved surface color printing is divided into a traditional method and a modern method according to different development stages of the curved surface printing, the traditional method is divided into a plurality of types such as curved surface screen printing, pad printing, formed matter relief offset printing and the like according to different curved surface ink transfer modes, and the modern method is divided into a 3D color printing method, a rotator surface ink-jet printing method and a three-dimensional ink-jet printing method according to different spatial motion modes of the printing stock.
In the aspect of curved surface silk screen equipment technology, because silk screen equipment is low in price, long in use history and mature in related matching, the silk screen equipment still has certain competitiveness and market prospect compared with other curved surface printing modes. The principle is as follows:
the printing stock is fixed on the mould roller and rotates together with the mould roller, the translational silk screen is positioned above the printing stock, the rotation quantity of the mould roller and the printing stock thereon and the movement quantity of the silk screen printing plate are the same, and the mould roller and the printing stock thereon keep synchronous operation, and the printing is carried out right above the rotation axis of the mould roller through the pressing movement of the scraper.
At present, curved surface flat screen printing machines manufactured by the above principle have been on the market for many years, for example, a method and a device for printing ceramic curved surface screen disclosed in patent application No. 201010283761, but printing machines manufactured by the structure are all single-color printing, printing with multiple colors cannot be performed, and the market application range is narrow. The failure to develop multi-process flat screen printing machines is mainly due to the following technical problems:
(1) consistency of reference positions when the die roller passes through different color register stations:
in the traditional single-color curved surface printing, the problem of repeated positioning does not exist, and only the pattern is completely printed on a printing stock;
as is known, in multi-color register printing, a die roller supporting a printing stock not only needs to rotate to realize curved surface printing, but also needs to be capable of translating integrally on the same plane according to a circular or elliptical track to sequentially pass through silk screens of a plurality of silk screen printing stations for color register, and if the current printing stock and the die roller move to the lower part of each silk screen for printing, the change of the reference positions of the printing stock on the die roller and the silk screens on each corresponding station exceeds the required error range, the problem of inaccurate color register is caused, and unqualified products are directly caused, and the method can only be applied to products with very low printing requirements.
(2) In the multi-color-registering printing machine, a plurality of die rollers are arranged, and each die roller needs a rotary driving mechanism to drive the die roller and a printing stock on the die roller to rotate; if one or a small number of motors are adopted to drive the die rollers together in a mode of a transmission belt and a transmission shaft, the fact that the die rollers and the rotary driving mechanism integrally translate along a circular or elliptical track and cannot interfere with other mechanical parts is obviously not reasonable.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a many cover look flat otter board curved surface calico printing machine with low costs, factor of safety height and stamp of high quality.
In order to solve the technical problem, the utility model adopts the technical scheme that: the utility model provides a many cover look flat otter board curved surface calico printing machine which characterized in that: the printing machine comprises a frame, a printing mechanism and a control system, wherein the frame is provided with a plurality of printing stations for realizing multi-color register; the printing station comprises a flat screen and a scraping printing assembly, wherein the flat screen is arranged on the frame, and the scraping printing assembly is positioned above the flat screen and is used for adsorbing ink in the flat screen onto a printing stock through meshes of the flat screen; the curved surface platen assembly comprises a platen support and a rotating shaft for supporting a printing stock, the rotating shaft is rotatably arranged on the platen support through a bearing assembly, and a curved surface die roller or a clamper for fixing the printing stock is arranged on the rotating shaft; the bedplate track driving mechanism is connected with each curved bedplate component and is used for driving the rotating shaft of each curved bedplate component to circularly translate on the same plane according to a closed track, and the closed track is provided with a straight line section which sequentially passes through the lower part of the flat screen plate of each printing station; the screen plate follow-up driving mechanism is arranged on the rack, is connected with each flat screen plate and is used for driving each flat screen plate to synchronously translate; the die roller rotation driving mechanism is used for driving the rotating shafts positioned at all the printing stations to synchronously rotate, and the rotating linear speed of the outer surface of the printing stock fixed on the curved surface die roller or the clamper is the same as the translation speed of each flat screen plate; the die roller rotation driving mechanism is provided with a clutch driving assembly and is used for driving the die roller rotation driving mechanism to be far away from or close to the rotating shaft to realize torque transmission or disengagement; the die roller angle locking mechanism comprises a movable locking assembly and a fixed unlocking assembly, wherein the movable locking assembly is arranged on each curved platen assembly and used for locking the rotation of the rotating shaft relative to the platen bracket; the fixed unlocking component is arranged on the machine frame corresponding to each printing station and can drive the movable locking component to move to unlock the locked rotating shaft.
Further, the die roller rotation driving mechanism comprises a transmission pair first end structure, a transmission pair second end structure, a second end structure synchronous driving mechanism and a clutch driving component,
the number of the first end structures of the transmission pair corresponds to that of the rotating shafts, and the first end structures of the transmission pair are arranged on the rotating shafts;
the transmission pair second end structure corresponds to the printing station and is arranged on the rack corresponding to the printing station through the output end synchronous driving mechanism;
any one of the first end structures of each transmission pair is meshed with any one of the second end structures of each transmission pair to form a single-stage or multi-stage rotary transmission pair capable of realizing the rotation of the first end structures of the transmission pairs;
the second end synchronous driving mechanism is used for driving the second end structures of the transmission pairs to synchronously act and driving the first end structures of the transmission pairs meshed with the second end structures of the transmission pairs to synchronously rotate;
the clutch driving assembly is used for driving the second end structure of the transmission pair to be far away from or close to the first end structure of the transmission pair so as to realize the transmission or the disconnection of torque between the rotating shaft and the second end synchronous driving mechanism.
Further, the first end structure of the transmission pair is a first transmission belt wheel;
the second end structure of the transmission pair is a transmission belt, the transmission belt is a double-sided transmission structure with tooth-shaped grooves or chain grooves in the inner and outer peripheries, and the tooth-shaped grooves or the chain grooves in the outer periphery of the transmission belt can be meshed with the first transmission belt wheel;
the second end synchronous driving mechanism comprises a second end synchronous driving support, a second driving belt wheel and a rotating shaft driving motor, the second end synchronous driving support is installed on the rack through a clutch driving assembly, the second driving belt wheel and the rotating shaft driving motor used for driving the second driving belt wheel to rotate are installed on the second end synchronous driving support, the transmission belt is installed on the second driving belt wheel, and an inner peripheral tooth-shaped groove or a chain groove of the transmission belt is meshed with the second driving belt wheel.
Furthermore, the second end synchronous driving mechanism also comprises a third driving belt wheel which can correspond to each first driving belt wheel, and the third driving belt wheel is arranged on the second end synchronous driving bracket and is arranged on the inner peripheral side of the driving belt and meshed with the inner peripheral tooth-shaped groove or the chain groove of the driving belt;
the second end synchronous driving support can be driven by the clutch driving assembly to approach the curved platen assembly, so that a peripheral tooth-shaped groove or a chain groove of the transmission belt is meshed with the first transmission belt wheel, and the periphery of the transmission belt is tightly pressed on the first transmission belt wheel by the third transmission belt wheel.
Further, the first end structure of the transmission pair is a gear;
the second end structure of the transmission pair is a rack;
and the second end synchronous driving mechanism is a rack linear driving mechanism.
Further, the rack linear driving mechanism comprises a rotating shaft driving motor and a gear, the gear is meshed with the rack, and the gear is connected with an output shaft of the rotating shaft driving motor.
Furthermore, the rack linear driving mechanism is a screw-nut pair driven by a rotating shaft driving motor.
Further, the rack linear driving mechanism is an electric push rod.
Further, the first end structure of the transmission pair is one of an inner spline structure and an outer spline structure;
the second end structure of the transmission pair is the other one of the inner spline structure and the outer spline structure;
and the second end synchronous driving mechanism is a spline rotation driving mechanism for driving the second end structure of the transmission pair to rotate.
Furthermore, the clutch driving assembly is a linear driving mechanism and is used for driving the second end structure of the transmission pair to move away from or close to the first end structure of the transmission pair along the horizontal direction or the vertical direction.
Furthermore, the movable locking assembly of the die roller angle locking mechanism comprises a locking block provided with a return spring, the first end structure of the rotating shaft or the transmission pair is provided with positioning groove holes which are uniformly distributed in an annular shape along the circumferential direction, and the locking block is embedded into the positioning groove holes under the action of the return spring.
Furthermore, the fixed locking component of the die roller angle locking mechanism is a cylinder or an electric push rod or an electromagnet component which is arranged at each printing station.
The curved surface bedplate component positioning mechanism comprises a pair of positioning wheels, a positioning reference rod and a reference rod driving mechanism, wherein the pair of positioning wheels is arranged on a bedplate support of the curved surface bedplate component, the rotating axes of the pair of positioning wheels are vertically arranged, a gap for just accommodating the embedding of the positioning reference rod is arranged between the pair of positioning wheels, the positioning reference rod and the reference rod driving mechanism are arranged on a machine frame at a printing station, and the positioning reference rod can be driven by the reference rod driving mechanism to be embedded into or separated from the gap.
Furthermore, the screen plate follow-up driving mechanism comprises a screen plate linear driving mechanism used for carrying out linear movement on the flat screen plate and a horizontal sliding block guide rail component used for guiding and limiting the moving direction of the flat screen plate.
Furthermore, the screen plate linear driving mechanism comprises a plurality of racks which correspond to the flat screen plates in quantity and are connected into a whole, and a gear which can be meshed with the racks, wherein the gear is driven by a screen plate driving motor to rotate, and each rack is connected and fixed with each flat screen plate.
Further, otter board linear driving mechanism includes fourth driving pulley, otter board driving motor, drive belt, and two at least fourth driving pulleys are installed in the frame, and the drive belt setting has at least one drive belt straightway on fourth driving pulley, and this drive belt straightway is connected fixedly with each flat otter board.
Furthermore, a height adjusting mechanism and a vertical sliding block guide rail assembly used for guiding and limiting the lifting of the flat screen plate are arranged on the flat screen plate.
The utility model has the advantages that:
theoretically, a plurality of independent servo motors are directly adopted to independently control each die roller, so that the problem of reference position consistency can be solved by using the braking of the servo motors or the self-locking modules, and the synchronous rotation of each die roller can be smoothly realized; but the number of the die rollers of the circular and oval printing machines is large, so that the cost is increased linearly and the competitiveness is not achieved; more importantly, in the circular and oval printing machines, the die rollers need to run on the same plane according to a circular or oval track, so that a sliding contact line is needed for supplying power to the servo motor moving along with the die rollers, and great potential safety hazards exist in the textile printing industry with extremely high fire protection requirements. In the utility model, the angle and position of the rotating shaft are accurately controlled by the die roller rotation driving mechanism and the die roller angle locking mechanism, so that the problem that multi-color register can not be realized in the curved surface screen printing due to positioning is solved; the die roller rotary driving mechanism is provided with a clutch driving assembly which is used for driving the die roller rotary driving mechanism to be far away from or close to the rotating shaft to realize torque transmission or disengagement, the rotating shaft can be rotated in a centralized synchronous driving mode, the problem of movement interference of the rotating shaft driving mechanism is avoided, and then multi-color-register high-precision printing is smoothly realized on the elliptical silk screen printing machine.
The die roller angle locking mechanism adopts a split type design, can meet the position positioning requirement of the die roller in the printing process, and can avoid the problem that the structure is too complex or power supply is caused by the fact that the movable locking assembly and the fixed unlocking assembly in the integrated structure need to meet the moving requirement of the die roller.
Drawings
FIG. 1 is the main view of the multi-color register flat screen curved surface printing machine of the present invention.
FIG. 2 is a top view of the multi-color register flat screen curved surface printing machine of the present invention.
FIG. 3 is a side view of the multi-color register flat screen curved surface printing machine of the present invention.
Fig. 4 is a partial schematic view of the present invention.
Fig. 5 is a schematic structural view of a first embodiment of the die roller rotation driving mechanism of the present invention.
Fig. 6 is a schematic structural view of a second embodiment of the die roller rotation driving mechanism of the present invention.
Fig. 7 is a schematic structural view of the mold roller angle locking mechanism of the present invention.
Fig. 8 is a schematic structural view of the screen linear driving mechanism of the present invention.
Fig. 9 is a schematic structural view of the curved platen assembly positioning mechanism of the present invention.
Detailed Description
As shown in fig. 1, 2 and 3, the printing machine comprises a frame 1, a printing station 2, a curved platen assembly 3, a platen track driving mechanism, a screen plate follow-up driving mechanism 5, a die roller rotation driving mechanism 6 and a die roller angle locking mechanism 7.
The frame 1 is provided with a plurality of printing stations 2 for realizing multi-color register, the printing stations 2 can be continuously arranged or arranged at intervals, and when the printing stations are arranged at intervals, the next or two printing stations of each printing station 2 can be provided with drying stations or stations with other functions.
The printing station 2, as shown in fig. 4, includes a flat screen 21 disposed on the frame 1, and a scraping unit 22, where the scraping unit 22 is located above the flat screen 21 and is configured to adsorb ink in the flat screen 21 onto a printing material through meshes of the flat screen 21. The scraping and printing unit 22 is a conventional unit on a printing machine, and generally includes a switchable scraper and a return blade, and has an up-and-down moving function, which will not be described in detail herein. The flat screen plate 21 can also be provided with a height adjusting mechanism, a driving cylinder 23 for driving the lifting of the flat screen plate 21 and guiding and limiting, a vertical slider guide rail assembly 24 for controlling the flat screen plate 21 to move up and down to be close to or far away from the curved platen assembly 3 below; furthermore, the relative spatial position of the flat screen 21 on the printing stations 2 can be fine-tuned so that the position of each flat screen 21 relative to each printing station 2 is identical.
The curved platen assemblies 3, as shown in fig. 4, the curved platen assembly 3 includes a platen support 31 and a rotating shaft 32 for supporting the substrate, the rotating shaft 32 is rotatably mounted on the platen support 31 through a bearing assembly 33, a curved mold roller 34 or a gripper for fixing the substrate is mounted on the rotating shaft 32, and the curved mold roller needs to have a circular arc outer surface.
The platen track driving mechanism is connected with each curved platen assembly 3 and used for driving the rotating shaft of each curved platen assembly 3 to circularly translate on the same plane according to a closed track, the closed track is provided with a straight line segment which sequentially passes through the lower part of the flat screen plate 21 of each printing station, and the straight line segment covers a plurality of printing stations, so that one mold roller rotating driving mechanism 6 can smoothly drive the rotating shafts on the plurality of printing stations, and the structural complexity is reduced. The embodiment of the utility model provides an in the oval orbit, the ellipse machine that often says so of printing industry at present, of course, the oval orbit is not totally elliptical, and it is that two opposite sides of rectangle change into the arc and constitute.
The screen plate follow-up driving mechanism 5 is arranged on the rack 1, is connected with each flat screen plate 21 and is used for driving each flat screen plate 21 to synchronously translate.
And the die roller rotation driving mechanism 6 is used for driving the rotating shafts positioned at all the printing stations to synchronously rotate, and the rotating linear speed of the outer surface of the printing stock fixed on the curved surface die roller or the clamper is the same as the translation speed of each flat screen plate. And the die cylinder rotation driving mechanism 6 has a clutch driving assembly 64 for driving the die cylinder rotation driving mechanism away from or close to the rotation shaft to effect torque transmission or disengagement. Of course, the number of the die cylinder rotation driving mechanisms 6 mounted on the frame 1 may be one or plural.
The die roller angle locking mechanism 7 comprises a movable locking assembly 71 and a fixed unlocking assembly 72, wherein the movable locking assembly 71 is arranged on each curved platen assembly 3 and is used for locking the rotation of the rotating shaft relative to the platen bracket; the fixed unlocking component is arranged on the machine frame corresponding to each printing station and can drive the movable locking component to move to unlock the locked rotating shaft.
In the die roller rotation driving mechanism 6 of the utility model,
the die roller rotation driving mechanism 6 comprises a transmission pair first end structure, a transmission pair second end structure, a second end structure synchronous driving mechanism and a clutch driving assembly;
the number of the first end structures of the transmission pairs corresponds to that of the rotating shafts 32, and the first end structures of the transmission pairs are arranged on the rotating shafts 32;
the transmission pair second end structure corresponds to the printing station 2, and is arranged on the rack 1 corresponding to the printing station through the output end synchronous driving mechanism;
any one of the first end structures of each transmission pair is meshed with any one of the second end structures of each transmission pair to form a single-stage or multi-stage rotary transmission pair capable of realizing the rotation of the first end structures of the transmission pairs;
the second end synchronous driving mechanism is used for driving the second end structures of the transmission pairs to synchronously act and driving the first end structures of the transmission pairs meshed with the second end structures of the transmission pairs to synchronously rotate;
the clutch driving assembly is not only used for driving the second end structure of the transmission pair to be far away from or close to the first end structure of the transmission pair to realize the transmission or the disconnection of torque between the rotating shaft 32 and the second end synchronous driving mechanism, but also can prevent the curved surface bedplate assembly 3 from interfering with other parts except the first end structure of the transmission pair in the mould roller rotating driving mechanism 6 in the moving process.
As the utility model discloses more specific structure of first in the rotatory actuating mechanism 6 of mould roller: as shown in figures 4 and 5 of the drawings,
the first end structure of the transmission pair is a first transmission belt wheel 61;
the structure of the second end of the transmission pair is a transmission belt 62, the transmission belt 62 is a double-sided transmission structure with tooth-shaped grooves or chain grooves on the inner and outer peripheries, and the tooth-shaped grooves or the chain grooves on the outer periphery of the transmission belt 62 can be meshed with the first transmission belt wheel 61; of course, those skilled in the art will appreciate that a drive pulley typically employs a timing pulley or sprocket, and the drive belt may be a timing belt or chain engaged therewith; the synchronous translation direction and speed of the conveyor belt and the flat screen 21 are obviously required to be consistent, and the description is omitted here.
The second end synchronous driving mechanism comprises a second end synchronous driving support 631, a second transmission belt pulley 632 and a rotating shaft driving motor 633, the second end synchronous driving support 631 is mounted on the frame 1 through a clutch driving assembly 64, the second transmission belt pulley 632 and the rotating shaft driving motor 633 for driving the second transmission belt pulley 632 to rotate are mounted on the second end synchronous driving support 631, the transmission belt 62 is mounted on the second transmission belt pulley 632, and an inner circumferential tooth-shaped groove or a chain groove of the transmission belt 62 is engaged with the second transmission belt pulley 63;
in order to ensure that the belt 62 is better engaged with the first driving pulley 61 for transmission, the second end synchronous driving mechanism further includes a third driving pulley 634 corresponding to the position of each first driving pulley 61, and the third driving pulley 634 is mounted on the second end synchronous driving support 631 and is disposed on the inner circumferential side of the belt 62 to be engaged with the inner circumferential tooth-shaped groove or the chain groove of the belt. The second end synchronous drive bracket 631 may be driven by the clutch drive assembly 64 toward the curved platen assembly 3 such that the peripheral toothed or chain groove of the belt 62 engages the primary pulley 61 and the third pulley 634 presses the periphery of the belt 62 against the primary pulley 61. In order for the third pulley 634 to press the belt 62 better against the first pulley 61, the third pulley 634 is equipped with a compression spring 635.
The clutch driving assembly 64 is a linear driving mechanism for driving the second end structure of the transmission pair to move away from or close to the first end structure of the transmission pair along the horizontal direction or the vertical direction. The structure of the linear driving mechanism is well known in the mechanical industry, and the structure thereof is various and will not be described herein.
Of course, the die cylinder rotation driving mechanism 6 of the present invention is not limited to the above-described more specific structure, and may have a second structure as shown in fig. 6:
the first end structure of the transmission pair is a gear 65;
the second end structure of the transmission pair is a rack 66, and the moving direction of the rack 66 needs to be consistent with the direction of synchronous translation with the flat screen 21; the rack 66 can be a plurality of rack segments respectively arranged on each printing station 2, and the rack segments are connected and fixed through a bracket to realize linkage so as to be respectively matched with the racks 65 moving to each printing station 2, or a full-length rack can be adopted;
the second end synchronous driving mechanism is a rack linear driving mechanism 67, and the rack linear driving mechanism 67 has more choices, for example: the gear is meshed with the rack, and the gear is connected with an output shaft of the rotating shaft driving motor; or the rack linear driving mechanism is a screw rod nut pair driven by a rotating shaft driving motor. Or the rack linear driving mechanism is an electric push rod.
The clutch drive assembly 64 is not described in detail herein.
As the utility model discloses the more specific structure of third kind of mould roller rotary driving mechanism 6:
the first end structure of the transmission pair is one of an inner spline structure and an outer spline structure;
the second end structure of the transmission pair is the other one of the inner spline structure and the outer spline structure;
second end synchronous drive mechanism is the rotatory spline rotary drive mechanism of the vice second end structure of drive transmission, and second end synchronous drive mechanism can adopt synchronous belt drive or chain drive's mode to carry out synchronous drive, for example the utility model discloses what first kind of more specific structure adopted in the rotatory actuating mechanism 6 of mould roller, no longer repeated here.
The utility model discloses in, more specific mould roller angle locking mechanical system as follows: as shown in figure 7 of the drawings,
the movable locking component 71 of the die roller angle locking mechanism 7 moves along with the curved surface table board component 3 and comprises a locking block provided with a return spring, a first end structure of a rotating shaft or a transmission pair is provided with positioning groove holes which are uniformly distributed in an annular shape along the circumferential direction, and the locking block is embedded into the positioning groove holes under the action of the return spring. After the locking block is embedded into the positioning groove hole, the rotating shaft can be locked, and the rotating shaft is prevented from rotating.
If the first end structure of the transmission pair adopts a synchronous belt wheel, a chain wheel or a spline, the first end structure is directly used as a positioning groove hole which is uniformly distributed in an annular shape along the circumferential direction, and the direction of the locking block embedded into the positioning groove hole is the axial direction or the radial direction of the rotating shaft, or the first end structure can adopt lever type inclined insertion.
The fixed locking component 72 of the die roller angle locking mechanism 7 is a cylinder or an electric push rod or an electromagnet component which is fixedly arranged at each printing station. The fixed locking assembly 72 can move after the movable locking assembly 71 moves to the printing station, and the locking block is pushed open, so that the rotating shaft can be unlocked.
As a more specific embodiment of the present invention: the screen plate follow-up driving mechanism 5 comprises a screen plate linear driving mechanism 51 for performing linear movement on the flat screen plate 21 and a horizontal slide block guide rail component 52 for guiding and limiting the moving direction of the flat screen plate 21. It should be noted here that the direction of the linear movement of the flat screen 21 is obviously the same as the direction of rotation of the highest point of the printing surface of the object placed on the curved platen assembly 3, although, in general, the speed of movement will also need to be the same.
As shown in fig. 8, the screen plate linear driving mechanism 51 includes fourth driving pulleys 514, a screen plate driving motor, and a driving belt 515, at least two fourth driving pulleys 514 are installed on the frame 1, the driving belt 515 is sleeved on the fourth driving pulleys 514, the driving belt 515 has at least one driving belt straight line segment, and the driving belt straight line segment is connected and fixed with each flat screen plate 21 through a connecting member. The extension direction of the straight line segment of the transmission belt is consistent with the rotation direction of the highest point of the printing stock printing surface on the curved surface platen assembly 3.
In this embodiment, the screen linear driving mechanism 51 is not limited to a synchronous transmission structure with synchronous belt and synchronous wheel, but can be other synchronous direct driving structures; for example, the screen linear driving mechanism 51 includes a plurality of racks corresponding to the number of the flat screens 21 and integrally connected with each other, and at least one gear capable of being engaged with the racks, the gear is driven by the screen driving motor to rotate, and each rack is connected and fixed with each flat screen 21. Of course, the direction of extension of the rack is coincident with the direction of rotation of the highest point of the printing substrate printing surface on the curved platen assembly 3.
To further ensure the accuracy of multi-color curved printing, the curved platen assembly 3 also needs to be accurately positioned in the position where it remains on the printing station 2:
the utility model discloses still include a mechanism that is used for carrying out the secondary location to curved surface platen subassembly 3, as shown in fig. 9, curved surface platen subassembly positioning mechanism includes locating wheel 81, location benchmark pole 82, benchmark pole actuating mechanism 83, locating wheel 81 has a pair ofly, the setting is on the platen support 31 of curved surface platen subassembly 3, this rotation axis to locating wheel 81 sets up perpendicularly, and should have a gap that just holds location benchmark pole 82 embedding between locating wheel 81, location benchmark pole 82 and benchmark pole actuating mechanism 83 are installed on the frame 1 of stamp station 2 department, location benchmark pole 82 can be driven by benchmark pole actuating mechanism 83 and imbed or break away from the gap.
The working principle is as follows:
in an initial state, a locking block of the movable locking assembly 71 is embedded into a positioning groove hole under the action of a return spring, the rotation of the rotating shaft relative to the platen bracket is locked, a to-be-printed material is fixedly placed on the surface of each curved surface die roller, and if the to-be-printed material is a hard cylinder or the to-be-printed area is provided with an arc-shaped outer circumferential surface, the to-be-printed material can be fixed on the rotating shaft through a clamp;
the bedplate track driving mechanism drives each curved bedplate component 3 to circularly translate on the same plane according to a closed track and sequentially move to the lower part of the flat screen 21 of each printing station;
the clutch driving component of the die roller rotation driving mechanism drives the second end structures of the transmission pairs to be close to the first end structures of the transmission pairs, and enables the first end structures of the transmission pairs and the second end structures of the transmission pairs to be meshed; meanwhile, the fixed locking component of the die roller angle locking mechanism 7 acts to unlock the locked rotating shaft, namely, the cylinder pushes the locking block to overcome the deformation force of the reset spring to leave the positioning slot hole and keep the state;
after unlocking, the synchronous driving mechanism of the second end structure of the transmission pair works to drive the second end structure of each transmission pair to drive the first end structure of the transmission pair meshed with the second end structure of the transmission pair to synchronously rotate, so that each corresponding curved surface bedplate component synchronously rotates for a certain angle, and the printing surface of a to-be-printed object on the curved surface bedplate component is upward to realize positioning before printing;
the flat screen plate descends in a matching way with the vertical slide block guide rail through the height adjusting mechanism, so that the flat screen plate is close to a to-be-printed material on the curved surface platen assembly, and a certain screen distance is kept; the scraper of the scraping and printing component 22 is opposite to the axis of the rotating shaft and descends a certain height, so that the flat screen plate is attached to the object to be printed;
the screen plate follow-up driving mechanism drives the flat screen plate to synchronously translate, meanwhile, the curved surface platen assembly is driven by the die roller rotation driving mechanism to rotate, the linear velocity of the surface of the to-be-printed material is ensured to be consistent with the moving velocity of the flat screen plate, and ink in the flat screen plate 21 is scraped and coated on the to-be-printed material right below through meshes of the flat screen plate 21 by using a static scraper, so that printing is finished;
after printing is finished, the fixed locking assembly 72 of the die roller angle locking mechanism 7 acts, so that the locking block of the movable locking assembly 71 is reset under the action of the reset spring and is embedded into the positioning groove hole again, and the rotating shaft is locked relative to the platen bracket; the clutch driving component drives the transmission pair second end structure to be far away from the transmission pair first end structure, so that the rotating shaft 32 and the second end synchronous driving mechanism are separated; the scraping and printing component and the flat mesh plate move upwards in sequence to reset;
the platen track driving mechanism drives each curved platen assembly 3 to move forwards continuously, so that the printing stock which is just printed enters the next station, the surface of the printing stock is dried or the printing stock is printed for the second time, and the multi-color set printing of the printing stock is realized through the circulation action.
Claims (17)
1. The utility model provides a many cover look flat otter board curved surface calico printing machine which characterized in that: comprises that
The printing machine comprises a frame and a printing mechanism, wherein the frame is provided with a plurality of printing stations for realizing multi-color register;
the printing station comprises a flat screen and a scraping printing assembly, wherein the flat screen is arranged on the frame, and the scraping printing assembly is positioned above the flat screen and is used for adsorbing ink in the flat screen onto a printing stock through meshes of the flat screen;
the curved surface platen assembly comprises a platen support and a rotating shaft for supporting a printing stock, the rotating shaft is rotatably arranged on the platen support through a bearing assembly, and a curved surface die roller or a clamper for fixing the printing stock is arranged on the rotating shaft;
the bedplate track driving mechanism is connected with each curved bedplate component and is used for driving the rotating shaft of each curved bedplate component to circularly translate on the same plane according to a closed track, and the closed track is provided with a straight line section which sequentially passes through the lower part of the flat screen plate of each printing station;
the screen plate follow-up driving mechanism is arranged on the rack, is connected with each flat screen plate and is used for driving each flat screen plate to synchronously translate;
the die roller rotation driving mechanism is used for driving the rotating shafts positioned at all the printing stations to synchronously rotate, and the rotating linear speed of the outer surface of the printing stock fixed on the curved surface die roller or the clamper is the same as the translation speed of each flat screen plate; the die roller rotation driving mechanism is provided with a clutch driving assembly and is used for driving the die roller rotation driving mechanism to be far away from or close to the rotating shaft to realize torque transmission or disengagement;
the die roller angle locking mechanism comprises a movable locking assembly and a fixed unlocking assembly, wherein the movable locking assembly is arranged on each curved platen assembly and used for locking the rotation of the rotating shaft relative to the platen bracket; the fixed unlocking component is arranged on the machine frame corresponding to each printing station and can drive the movable locking component to move to unlock the locked rotating shaft.
2. The multi-process flat screen curved printing machine according to claim 1, characterized in that: the die roller rotation driving mechanism comprises a transmission pair first end structure, a transmission pair second end structure, a second end structure synchronous driving mechanism and a clutch driving component,
the number of the first end structures of the transmission pair corresponds to that of the rotating shafts, and the first end structures of the transmission pair are arranged on the rotating shafts;
the transmission pair second end structure corresponds to the printing station and is arranged on the rack corresponding to the printing station through the output end synchronous driving mechanism;
any one of the first end structures of each transmission pair is meshed with any one of the second end structures of each transmission pair to form a single-stage or multi-stage rotary transmission pair capable of realizing the rotation of the first end structures of the transmission pairs;
the second end synchronous driving mechanism is used for driving the second end structures of the transmission pairs to synchronously act and driving the first end structures of the transmission pairs meshed with the second end structures of the transmission pairs to synchronously rotate;
the clutch driving assembly is used for driving the second end structure of the transmission pair to be far away from or close to the first end structure of the transmission pair so as to realize the transmission or the disconnection of torque between the rotating shaft and the second end synchronous driving mechanism.
3. The multi-process flat screen curved printing machine according to claim 2, characterized in that:
the first end structure of the transmission pair is a first transmission belt wheel;
the second end structure of the transmission pair is a transmission belt, the transmission belt is a double-sided transmission structure with tooth-shaped grooves or chain grooves in the inner and outer peripheries, and the tooth-shaped grooves or the chain grooves in the outer periphery of the transmission belt can be meshed with the first transmission belt wheel;
the second end synchronous driving mechanism comprises a second end synchronous driving support, a second driving belt wheel and a rotating shaft driving motor, the second end synchronous driving support is installed on the rack through a clutch driving assembly, the second driving belt wheel and the rotating shaft driving motor used for driving the second driving belt wheel to rotate are installed on the second end synchronous driving support, the transmission belt is installed on the second driving belt wheel, and an inner peripheral tooth-shaped groove or a chain groove of the transmission belt is meshed with the second driving belt wheel.
4. The multi-process flat screen curved printing machine according to claim 3, characterized in that: the second end synchronous driving mechanism also comprises third driving belt wheels which can correspond to the first driving belt wheels, and the third driving belt wheels are arranged on the second end synchronous driving support and are arranged on the inner peripheral side of the driving belt and meshed with the inner peripheral tooth-shaped grooves or the chain grooves of the driving belt;
the second end synchronous driving support can be driven by the clutch driving assembly to approach the curved platen assembly, so that a peripheral tooth-shaped groove or a chain groove of the transmission belt is meshed with the first transmission belt wheel, and the periphery of the transmission belt is tightly pressed on the first transmission belt wheel by the third transmission belt wheel.
5. The multi-process flat screen curved printing machine according to claim 2, characterized in that:
the first end structure of the transmission pair is a gear;
the second end structure of the transmission pair is a rack;
and the second end synchronous driving mechanism is a rack linear driving mechanism.
6. The multi-process flat screen curved printing machine according to claim 5, characterized in that: the rack linear driving mechanism comprises a rotating shaft driving motor and a gear, wherein the gear is meshed with the rack, and the gear is connected with an output shaft of the rotating shaft driving motor.
7. The multi-process flat screen curved printing machine according to claim 5, characterized in that: the rack linear driving mechanism is a screw rod nut pair driven by a rotating shaft driving motor.
8. The multi-process flat screen curved printing machine according to claim 7, characterized in that: the rack linear driving mechanism is an electric push rod.
9. The multi-process flat screen curved printing machine according to claim 2, characterized in that:
the first end structure of the transmission pair is one of an inner spline structure and an outer spline structure;
the second end structure of the transmission pair is the other one of the inner spline structure and the outer spline structure;
and the second end synchronous driving mechanism is a spline rotation driving mechanism for driving the second end structure of the transmission pair to rotate.
10. The multi-process flat screen decorating machine of claim 2 ~ 9, wherein the clutch driving assembly is a linear driving mechanism for driving the second end structure of the transmission pair to move away from or close to the first end structure of the transmission pair along the horizontal direction or the vertical direction.
11. The multi-process flat screen curved printing machine according to claim 1, characterized in that: the movable locking assembly of the die roller angle locking mechanism comprises a locking block provided with a return spring, a first end structure of the rotating shaft or the transmission pair is provided with positioning groove holes which are uniformly distributed in an annular shape along the circumferential direction, and the locking block is embedded into the positioning groove holes under the action of the return spring.
12. The multi-process flat screen curved printing machine according to claim 1 or 11, characterized in that: and the fixed locking assembly of the die roller angle locking mechanism is an air cylinder or an electric push rod or an electromagnet assembly arranged at each printing station.
13. The multi-process flat screen curved printing machine according to claim 1 or 2, characterized in that: the mechanism is used for carrying out secondary positioning on the curved surface bedplate component, the curved surface bedplate component positioning mechanism comprises a pair of positioning wheels, a positioning reference rod and a reference rod driving mechanism, the positioning wheels are arranged on a bedplate support of the curved surface bedplate component, the pair of positioning wheels are vertically arranged, a gap which is just used for embedding the positioning reference rod is arranged between the pair of positioning wheels, the positioning reference rod and the reference rod driving mechanism are arranged on a rack at a printing station, and the positioning reference rod can be driven by the reference rod driving mechanism to be embedded into or separated from the gap.
14. The multi-process flat screen curved printing machine according to claim 1, characterized in that:
the screen plate follow-up driving mechanism comprises a screen plate linear driving mechanism used for carrying out linear movement on the flat screen plate and a horizontal sliding block guide rail assembly used for guiding and limiting the moving direction of the flat screen plate.
15. The multi-process flat screen rotary press according to claim 14, wherein: the screen plate linear driving mechanism comprises a plurality of racks which correspond to the flat screen plates in quantity and are connected into a whole, and a gear which can be meshed with the racks, the gear is driven by a screen plate driving motor to rotate, and each rack is fixedly connected with each flat screen plate.
16. The multi-process flat screen rotary press according to claim 14, wherein: the screen plate linear driving mechanism comprises fourth driving belt wheels, a screen plate driving motor and a driving belt, wherein at least two fourth driving belt wheels are installed on the frame, the driving belt is arranged on the fourth driving belt wheels, the driving belt is provided with at least one driving belt straight-line segment, and the driving belt straight-line segments are fixedly connected with the flat screen plates.
17. The multi-process flat screen curved printing machine according to claim 1, characterized in that: and the flat screen plate is provided with a height adjusting mechanism and a vertical sliding block guide rail assembly for guiding and limiting the lifting of the flat screen plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920360101.8U CN209851779U (en) | 2019-03-21 | 2019-03-21 | Multi-color-register flat screen curved surface printing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920360101.8U CN209851779U (en) | 2019-03-21 | 2019-03-21 | Multi-color-register flat screen curved surface printing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209851779U true CN209851779U (en) | 2019-12-27 |
Family
ID=68934351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920360101.8U Withdrawn - After Issue CN209851779U (en) | 2019-03-21 | 2019-03-21 | Multi-color-register flat screen curved surface printing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209851779U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109808294A (en) * | 2019-03-21 | 2019-05-28 | 邱德强 | A kind of more chromatography flat pattern web plate curved surface printing machines |
| CN112192942A (en) * | 2020-10-09 | 2021-01-08 | 泉州市潮些科技有限公司 | Multi-color multi-station textile screen printing machine |
-
2019
- 2019-03-21 CN CN201920360101.8U patent/CN209851779U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109808294A (en) * | 2019-03-21 | 2019-05-28 | 邱德强 | A kind of more chromatography flat pattern web plate curved surface printing machines |
| CN109808294B (en) * | 2019-03-21 | 2023-12-26 | 邱德强 | Multi-color flat screen plate curved surface printing machine |
| CN112192942A (en) * | 2020-10-09 | 2021-01-08 | 泉州市潮些科技有限公司 | Multi-color multi-station textile screen printing machine |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200708 Address after: 226500, Rugao City, Jiangsu Province, Nantong, such as town Industrial Park Co-patentee after: Qiu Deqiang Patentee after: RUGAO TIANYUAN GARMENT PRINTING Co.,Ltd. Address before: 226500 Room 501, Building 10, Puhang New Village, Rucheng City, Nantong City, Jiangsu Province Patentee before: Qiu Deqiang |
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| AV01 | Patent right actively abandoned | ||
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Granted publication date: 20191227 Effective date of abandoning: 20231226 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20191227 Effective date of abandoning: 20231226 |