CN111452491A - Multi-splicing type printing system - Google Patents
Multi-splicing type printing system Download PDFInfo
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- CN111452491A CN111452491A CN201910047922.0A CN201910047922A CN111452491A CN 111452491 A CN111452491 A CN 111452491A CN 201910047922 A CN201910047922 A CN 201910047922A CN 111452491 A CN111452491 A CN 111452491A
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Abstract
The invention discloses a multi-station splicing type printing system, which arranges a plurality of printing machines in a transverse dislocation makeup mode or a longitudinal alignment overprinting mode according to printing requirements, adopts a transverse adjusting device positioned between the printing machines and a mounting rack of the printing machines to adjust the relative position between printing plate rungs, enables the printing patterns of two adjacent printing machines to be printed on a printing material at required intervals or enables the rungs of the printing plates of the printing machines to be aligned in opposite positions, and adopts a longitudinal phase adjusting device arranged on the printing machines to adjust the relative angle of the printing plates on the printing machines so as to adjust the phase of the patterns. The effect of pattern splicing can be realized on a wide-width printing material by the aid of the transverse adjusting device and the longitudinal phase adjusting device, the problem that the printing plate width of a single printing machine is insufficient is solved, the problem that overprinting is not uniform in the longitudinal direction can also be solved, printing speed and efficiency are improved, and the requirements of wide-width printing materials and high-speed makeup printing and/or overprinting can be met.
Description
Technical Field
The invention relates to a printing system, in particular to a multi-station splicing type printing system which is suitable for makeup printing and/or over-printing of wide and long printing plate materials and belongs to the technical field of anti-counterfeiting printing equipment.
Background
The anti-counterfeiting printing equipment used in the prior art is limited by the printing plate material, so that the strength of the printing plate can be limited when the printing equipment runs: if the printing plate is too long, the printing plate can be damaged due to insufficient flexibility during operation, so that the printing width of the equipment is limited, and particularly, the higher the operation speed of the printing plate is, the shorter the length of the printing plate which can stably operate is, so that the printing width is smaller. The development trend of the existing papermaking equipment is that the width is wider and wider, the width of a material to be printed is wider and wider to improve the printing efficiency, and the printing speed is higher and faster, so that the existing printing equipment and the printing technology cannot meet the requirement of continuously developed printing, and particularly cannot meet the requirement of high-speed makeup printing and/or overprint printing of a wide-width printing material.
Disclosure of Invention
In order to solve the technical problems, the invention provides a multi-splicing printing system which can effectively solve the problems of insufficient printing width and low printing speed by adopting a splicing and combining mode of a plurality of anti-counterfeiting printing machines.
The technical scheme of the invention is as follows:
a multi-splicing printing system comprises a plurality of printing machines, wherein the traveling direction of a paper web is taken as the Y direction, the vertical direction of the paper web is taken as the Z direction, the plurality of printing machines are arranged in a transverse dislocation makeup mode or a longitudinal alignment sleeve plate mode in a horizontal plane, printing machine mounting frames arranged in the X direction are respectively arranged on two sides of each printing machine in the X direction, a support rod capable of sliding along the printing machine mounting frames is transversely positioned on the printing machine mounting frames corresponding to each printing machine, and the printing machines are fixedly arranged on the support rods; a transverse adjusting device is correspondingly arranged at each printing machine and comprises an adjusting screw rod arranged along the X direction, one end of the adjusting screw rod is provided with a fixed seat fixed axially and fixedly connected to a mounting rack of the printing machine, the other end of the adjusting screw rod is sleeved with a connecting support capable of axially reciprocating along the adjusting screw rod, the printing machine is fixedly connected to the connecting support, and the adjusting screw rod rotates to drive the connecting support to reciprocate along the adjusting screw rod to position and move so as to drive the printing machine to reciprocate in the X direction; each printing machine is provided with a longitudinal phase adjusting device capable of adjusting the printing phase in the Y direction.
The further technical scheme is as follows:
the longitudinal phase adjusting device is a coaxial longitudinal angular displacement assembly, a main transmission shaft which is connected with the driving motor and driven by the driving motor is coaxial, the coaxial longitudinal angular displacement assembly comprises a longitudinal angular displacement device and a gear transmission assembly, a power output shaft of the longitudinal angular displacement device is connected with a main rotating shaft of the printing machine in a positioning mode through a spline, a power input shaft of the longitudinal angular displacement device is connected with a central shaft of a power output wheel of the gear transmission assembly in a positioning mode through a spline, a power input wheel of the gear transmission assembly is connected with the main transmission shaft in a coaxial direct or indirect positioning mode and is driven to rotate by the main transmission shaft directly or indirectly, and the main transmission shaft drives the main rotating shaft of each printing machine to rotate coaxially.
The longitudinal angular displacement device comprises a worm connected with the driving device and driven by the driving device and a worm wheel meshed with the worm, the power output shaft and the power input shaft are coaxially positioned on the opposite radial side surfaces of the worm wheel at intervals, and the power input shaft and the power output shaft can circumferentially rotate relative to the worm wheel; the radial side surface of the worm wheel, which is provided with the power input shaft, is positioned with a main central transmission gear which is coaxially sleeved on the power input shaft and is meshed with the power input shaft, and the radial side surface of the worm wheel, which is provided with the power output shaft, is positioned with a central transmission gear which is coaxially sleeved on the power output shaft and is meshed with the power output shaft; the inner part of the worm gear is provided with a plurality of planetary gear shafts which are positioned and connected with the inner part of the worm gear at the outer circumference of the master and slave central transmission gears in a penetrating way, one end of each planetary gear shaft, which is close to the master central transmission gear, is positioned and connected with a master planetary transmission gear which is meshed with the master central transmission gear, and one end of each planetary gear shaft, which is close to the slave central transmission gear, is positioned and connected with a slave planetary transmission gear which is meshed with the slave central transmission gear.
Shaft key grooves are formed in two ends of each planetary gear shaft, gear key grooves are formed in the positions, corresponding to the shaft key grooves, of the main planetary gear shaft and the auxiliary planetary gear shaft, and keys are arranged in the shaft key grooves and the corresponding gear key grooves to enable the planetary gear shafts to be connected with the main planetary gear shaft and the auxiliary planetary gear shaft in a circumferential positioning mode.
The longitudinal angular displacement device further comprises a box body, the power output shaft and the power input shaft penetrate out of two opposite sides of the box body, and the worm penetrates out of the top of the box body.
The longitudinal phase adjusting device is a photoelectric sensing servo control assembly which comprises a programmable controller with a preset virtual shaft inside, a plurality of servo motors corresponding to the number of the printing machines and a plurality of photoelectric detection devices corresponding to the number of the printing machines, wherein a main rotating shaft of each printing machine is connected with one servo motor in a positioning mode and is controlled by the servo motor to rotate, and the photoelectric detection devices used for detecting printing positions are positioned at the printing positions of each printing machine; the servo motor and the photoelectric detection device are electrically connected with the programmable controller, and the servo motor can adjust the longitudinal phase angle of the printing machine according to the comparison result of the signals detected by the photoelectric detection device and the preset value of the virtual shaft of the programmable controller.
The virtual axis in the programmable controller keeps a specific angular velocity ratio with the angular velocity of the operation of the servo motor on each printing machine, the programmable controller is internally preset with the pulse per revolution for calculating the angular velocity value of the virtual axis and the length value printed by each printing machine corresponding to each angle unit, and the pulse per revolution is provided with a zero point position for calculating the error and the operation error to clear and align the reference position.
The transverse adjusting device further comprises a hand wheel which is fixedly connected to the end portion, close to the fixing seat, of the adjusting screw rod, and the hand wheel rotates to drive the adjusting screw rod to rotate around the central shaft of the adjusting screw rod.
The transverse dislocation makeup arrangement mode is that a plurality of printing machines are arranged in a row-shaped interval staggered manner in the X direction, and the printing plate banner positions of two adjacent printing machines are spliced and correspond to each other.
The longitudinal alignment register plate arrangement mode is that a plurality of printing machines are arranged in a row at intervals in the Y direction in an aligned mode, and the printing plates of all the printing machines are in phase position sleeved correspondence.
The beneficial technical effects of the invention are as follows: the multi-splicing type anti-counterfeiting printing system arranges a plurality of printing machines in a transverse dislocation makeup mode or a longitudinal alignment overprinting mode according to printing requirements, adopts a transverse adjusting device positioned between the printing machines and a mounting rack of the printing machines to adjust the relative positions between the cross webs of the printing plates, enables the printing patterns of two adjacent printing machines to be printed on a printing material according to the required intervals or enables the cross web positions of the printing plates of all the printing machines to be aligned, and adopts a longitudinal phase adjusting device arranged on the printing machines to adjust the relative angles of the printing plates on all the printing machines so as to adjust the phase of the patterns. The effect of pattern splicing can be realized on a wide-width printing material by the aid of the transverse adjusting device and the longitudinal phase adjusting device, the problem that the printing plate width of a single printing machine is insufficient is solved, the problem that overprinting is not uniform in the longitudinal direction can also be solved, printing speed and efficiency are improved, and the requirements of wide-width printing materials and high-speed makeup printing and/or overprinting can be met.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present invention;
FIG. 2 is a schematic structural diagram of embodiment 2 of the present invention;
FIG. 3 is a schematic structural diagram of embodiment 3 of the present invention;
FIG. 4 is a schematic structural diagram of embodiment 4 of the present invention;
FIG. 5 is a schematic perspective view of the lateral adjustment mechanism of the present invention;
FIG. 6 is a schematic view of the overall external configuration of the longitudinal angular displacement device of the present invention;
FIG. 7 is a schematic view of the overall cross-sectional configuration of the longitudinal angular displacement apparatus of the present invention;
FIG. 8 is a schematic perspective view of the interior of the longitudinal angular displacement apparatus of the present invention;
FIG. 9 is a schematic front view of the interior of the longitudinal angular displacement apparatus of the present invention;
wherein:
1, a printing machine; 2, mounting a printer;
3, a support rod; 4, a transverse adjusting device;
401 adjusting a screw; 402 a fixed seat;
403 connecting the bracket; 404 a handwheel;
405 moving the nut; 5a longitudinal phase adjusting device;
5a coaxial longitudinal angular displacement assembly; 5a1 longitudinal angular displacement means;
5a1-1 power take-off shaft; 5a1-2 power input shaft;
5a1-3 primary central drive gear; 5a1-4 driving the gear from the center;
5a1-5 primary planetary drive gears; 5a1-6 driven planetary gears;
5a1-7 planet shafts; 5a1-8 worm;
5a1-9 worm gear; a 5a1-10 bond;
5a1-11 box; 5a2 gear assembly;
5b a photoelectric sensing servo control component; 5b1 servomotor;
6, the main transmission is coaxial;
Detailed Description
In order to make the technical means of the present invention clearer and to make the technical means of the present invention capable of being implemented according to the content of the specification, the following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings and examples, which are provided for illustrating the present invention and are not intended to limit the scope of the present invention.
The specific structure of the multi-stage joggle printing system described in the present application is described in detail below, and the differences of the printing systems applied to various applications such as imposition printing or overprinting are described in specific embodiments 1 to 4. In the description, the web traveling direction is taken as the Y direction, the direction perpendicular to the Y direction is taken as the X direction in the horizontal plane, and the vertical direction is taken as the Z direction.
This many concatenation formula printing system includes a plurality of printing machines 1, and these a plurality of printing machines arrange according to the printing needs of product and put.
When the conventional printing needs to be carried out on a wide-width printing material, the plurality of printing machines are arranged in a transverse dislocation makeup mode, specifically, the plurality of printing machines 1 are arranged in a row shape in the X direction at intervals in a staggered mode, and the printing plate cross-width positions of two adjacent printing machines are correspondingly spliced, so that the relative positions between the printing plate cross-widths can be further adjusted by adjusting the transverse adjusting devices on the printing machines, the printing patterns of the two adjacent printing machines are printed on the printing material according to the required intervals, and meanwhile, the relative angles of the printing plates on the printing machines are adjusted by adjusting the longitudinal phase adjusting devices, so that the phase of the patterns is adjusted, the effect of splicing the patterns when the printing is carried out on the wide-width printing material is realized, and the problem that the printing plate width of a single printing machine is insufficient is solved.
When the overprinting of the printing material is needed, a plurality of printing machines are arranged in a longitudinal alignment overprinting mode, specifically, a plurality of printing machines 1 are arranged in a row at intervals in the Y direction in an aligned mode, the printing plates of all the printing machines are in sleeved correspondence, the relative positions of the printing plate rungs can be further adjusted by adjusting the transverse adjusting devices on all the printing machines, so that the printing rungs of all the printing machines arranged in a row are aligned, and meanwhile, the relative angles of the printing plates of all the single printing machines are adjusted by adjusting the longitudinal phase adjusting devices, so that the effect of pattern multicolor overprinting when printing on the printing material is realized.
Every printing machine 1 among the many concatenation formula printing system of above-mentioned is equipped with respectively along X to the printing machine mounting bracket 2 of arranging to both sides along X, corresponds every printing machine department on this printing machine mounting bracket and all spanes the formula location and be equipped with and can follow the gliding cradling piece 3 of printing machine mounting bracket location, and printing machine 1 sets firmly on cradling piece 3. Wherein the specific structure that the cradling piece 3 can be slided along this printer mounting bracket 2 location on printer mounting bracket 2 is: sliding block components are positioned on the support rod 3 corresponding to the two printer mounting racks 2, the sliding components can be sliding blocks or sliding components such as pulleys and the like used for conventional linear rails in the field, and the sliding components in the specific embodiment adopt the pulleys capable of being positioned; a slide rail for sliding the sliding member may be provided on the printer mounting bracket 2 along the printer mounting bracket, and the sliding member is slidably connected to the slide rail and can be positioned on the slide rail.
Each printing press 1 is provided with a lateral adjustment device 4, which includes an adjustment screw 401 arranged along the X direction. One end of the adjusting screw 401 is provided with a fixing seat 402 fixed in the axial direction, the fixing seat 402 is fixed in the axial direction, but the adjusting screw 401 can rotate relative to the fixing seat in the circumferential direction, and meanwhile, the fixing seat 402 is fixedly connected to the mounting rack 2 of the printing machine through connecting pieces such as screws. The other pot head of this adjusting screw 401 is equipped with can follow adjusting screw 401 axial reciprocating motion's linking bridge 403, has linked firmly removal nut 405 on linking bridge 403 promptly, and adjusting screw wears to establish removal nut and with this removal nut threaded connection, and printing machine 1 links firmly on this linking bridge 403. In addition, a hand wheel 404 is fixedly connected to the end portion, close to the fixing seat 402, of the adjusting screw 401, the hand wheel can drive the adjusting screw 401 to rotate around the central shaft of the adjusting screw, and the adjusting screw can drive the connecting support 403 to move in a reciprocating positioning manner along the adjusting screw so as to drive the printing machine to move in a reciprocating positioning manner in the X direction. When the relative position between the rungs of the single printing machine is adjusted upwards in X, the hand wheel is rotated clockwise or anticlockwise according to needs, namely, the hand wheel rotates to drive the adjusting screw to rotate around the central shaft of the hand wheel, the moving nut moves on the adjusting screw in a linear reciprocating manner along the thread on the adjusting screw, the connecting bracket fixedly connected with the moving nut drives the single printing machine fixed with the connecting bracket to move along the axis direction of the adjusting screw, namely, the hand wheel stops rotating after the X moves upwards to the position to be adjusted.
Each printing press 1 is provided with a vertical phase adjustment device 5 capable of adjusting a printing phase in the Y direction. The longitudinal phase adjusting device can adopt two modes, one mode is that the relative angle of the printing plate is adjusted by adopting a mechanical coaxial transmission matched with a coaxial longitudinal angular displacement assembly to realize the phase adjustment, and the other mode is that the relative angle of the printing plate is adjusted by adopting a photoelectric sensing servo control assembly to realize the phase adjustment.
The coaxial longitudinal angular displacement assembly 5a adopted by the longitudinal phase adjusting device 5 has the following specific structure: there is a main drive shaft 6 connected to and driven by a drive motor, and a coaxial longitudinal displacement assembly 5a includes a longitudinal displacement device 5a1 and a gear assembly 5a 2. The longitudinal angular displacement device 5a1 comprises a power input shaft 5a1-2 and a power output shaft 5a1-1, the gear transmission assembly 5a2 comprises a power input wheel and a power output wheel, the power output shaft 5a1-1 of the longitudinal angular displacement device 5a is connected with a main transmission shaft of the printing machine in a positioning mode through a spline, the power input shaft 5a1-2 of the longitudinal angular displacement device is connected with a central shaft of the power output wheel of the gear transmission assembly in a positioning mode through a spline, the power input wheel of the gear transmission assembly is connected with the main transmission shaft 6 in a positioning mode directly or indirectly and is driven to rotate by the main transmission shaft directly or indirectly, and the main transmission shaft drives the main transmission shaft of each printing machine to rotate coaxially. When the coaxial longitudinal angular displacement assembly is applied to a plurality of splicing printing systems for makeup printing, a power input wheel of the gear transmission assembly is coaxially and directly positioned and rotationally connected with the main transmission; when the coaxial longitudinal angular displacement assembly is applied to a multi-splicing printing system of the overprinting printing, the power input wheel of the gear transmission assembly on the printer adjacent to the main transmission coaxial is directly positioned and rotationally connected with the main transmission coaxial, and the power output wheels of other printers arranged longitudinally are rotationally connected with the power input wheel of the previous printer, so that the indirect rotational connection with the main transmission coaxial is realized. Thus, when the main transmission shaft rotates under the action of the driving motor, the power input wheel of the gear transmission assembly is driven to rotate, and then the power output wheel of the gear transmission assembly is driven to rotate, so that the power input shaft of the longitudinal angular displacement device is driven to rotate, and the power output shaft of the longitudinal angular displacement device is driven to rotate, so that the main rotating shaft of each printing plate of the printing machine is driven to rotate.
The specific structure in which the longitudinal angular displacement device 5a1 implements phase adjustment is: the longitudinal angle displacement device 5a1 comprises a box body 5a1-11 besides a power input shaft 5a1-1 and a power output shaft 5a1-2, wherein the power output shaft and the power input shaft penetrate out of two opposite sides of the box body; the box body is internally provided with a worm 5a1-8 which is connected with the driving device and driven by the driving device and a worm wheel 5a1-9 which is meshed with the worm, and the worm penetrates through the top of the box body. The power output shaft 5a1-1 and the power input shaft 5a1-2 are coaxially positioned on opposite radial sides of the worm gear at intervals, and both the power input shaft and the power output shaft can rotate circumferentially relative to the worm gear. The radial side surface of the worm wheel 5a1-9 with the power input shaft is provided with a main central transmission gear 5a1-3 which is coaxially sleeved on the power input shaft 5a1-2 and is meshed with the power input shaft, and the radial side surface of the worm wheel 5a1-9 with the power output shaft is provided with a central transmission gear 5a1-4 which is coaxially sleeved on the power output shaft and is meshed with the power output shaft; a plurality of planet gear shafts 5a1-7 which are positioned and connected with the inside of the worm gear are arranged in the worm gear at the outer circumference of the main central transmission gear and the auxiliary central transmission gear in a penetrating way, one end of each planet gear shaft close to the main central transmission gear is positioned and connected with a main planet transmission gear 5a1-5 which is meshed with the main central transmission gear, and one end of each planet gear shaft close to the auxiliary central transmission gear is positioned and connected with an auxiliary planet transmission gear 5a1-6 which is meshed with the auxiliary central transmission gear. Shaft key grooves are formed in two ends of each planetary gear shaft 5a1-7, gear key grooves are formed in positions, corresponding to the shaft key grooves, of the main planetary transmission gear and the auxiliary planetary transmission gears, and keys 5a1-10 are arranged in the shaft key grooves and the corresponding gear key grooves, so that the planetary gear shafts are connected with the main planetary transmission gears and the auxiliary planetary transmission gears in a circumferential positioning mode.
The working principle of adjusting the phase using the coaxial longitudinal angular displacement assembly 5a as the longitudinal phase adjusting means is as follows: when the phase position does not need to be adjusted, a driving motor connected with the main transmission shaft 6 is started to drive the main transmission shaft to rotate coaxially, so that a power input shaft 5a1-2 of the longitudinal angle displacement device 5a1 is driven to rotate, the power input shaft drives a main central transmission gear 5a1-3 to rotate, so that each main planetary transmission gear 5a1-5 meshed with the main transmission gear is driven to rotate, each main planetary transmission gear transmits power to a planetary gear shaft 5a1-7 through a key 10, the planetary gear shaft transmits power to each auxiliary planetary transmission gear 5a1-6 through a key 10 at the other end, so that a power output shaft 5a1-1 of the longitudinal angle displacement device 5a1 meshed with the planetary gear is driven to rotate, and therefore the main rotating shaft of the printing machine is driven to rotate. In the whole operation process, because the single printing machines are directly or indirectly connected on the main transmission shaft, when a driving device connected with the worm 5a1-8 is not started, the worm does not rotate, and the worm wheel does not rotate, the power input shaft 5a1-2 and the power output shaft 5a1-1 always operate according to a certain transmission ratio, the phase angle difference of the printing plates of the single printing machines is always kept unchanged, and the longitudinal relative position of the printed patterns of the single printing machines is also kept unchanged. When a driving device connected with the worm 5a1-8 is started, the worm rotates to drive a worm wheel to rotate, the worm wheel 5a1-9 rotates to drive a planet gear shaft 5a1-7 connected with the worm wheel to rotate along a main central transmission gear 5a1-4, so that a speed difference is caused, the phase angle difference of printing plates of the single printing machine is changed, and the longitudinal relative position of the printed patterns of each single printing machine is changed; when the worm drives the worm wheel to rotate along the rotation direction of the main central transmission gear, the power output shaft 5a1-1 is accelerated, and the printing patterns of the printer to be adjusted and the printing patterns of the printer not to be adjusted are driven to move forwards; conversely, when the worm rotates the worm wheel against the rotation direction of the main central transmission gear, the power output shaft 5a1-2 is decelerated, and the printing patterns of the adjusted printer and the printing patterns of the non-adjusted printer are moved backward.
The specific structure of the photoelectric sensing servo control assembly 5b adopted by the longitudinal phase adjusting device 5 is as follows: the photoelectric sensing servo control assembly comprises a servo motor 5b1 which is connected with the main rotating shaft of the printing machine 1 in a positioning way, the servo motor is electrically connected with a photoelectric sensor which is arranged in the printing machine and used for measuring the phase angle positions of two adjacent printing machines, and the servo motor can adjust the longitudinal phase angle of the printing machine according to the received signals sent by the photoelectric sensor. When the servo motor is used for the main transmission motor, the angular displacement signal can be processed by a control system of the servo motor after receiving the signal sent by the photoelectric sensor, and then the relative angular position of the adjacent printing machines can be automatically adjusted to realize the adjustment of the longitudinal printing position.
The photoelectric sensing servo control assembly comprises a programmable controller with a preset virtual shaft inside, a plurality of servo motors 5b1 corresponding to the number of the printing machines and a plurality of photoelectric detection devices corresponding to the number of the printing machines. The main rotating shaft of each printing machine is connected with one servo motor in a positioning mode and is controlled to rotate by the servo motor, the printing-out position of each printing machine is provided with one photoelectric detection device used for detecting a printing position in a positioning mode, the servo motor and the photoelectric detection device corresponding to each printing machine are electrically connected with the programmable controller, namely all the servo motors and the photoelectric detection devices are electrically connected with the general programmable controller, and the servo motor of each printing machine can adjust the longitudinal phase angle of the printing machine according to the comparison result of the signals obtained by the detection of the photoelectric detection device of the printing machine and the preset value of the virtual shaft of the programmable controller. The virtual axis in the programmable controller keeps a specific angular velocity ratio with the angular velocity of the operation of the servo motor on each printing machine, and the specific angular velocity ratio is optimally one to one, namely the angular velocity of the operation of the virtual axis is consistent with the angular velocity of the operation of the servo motor of the printing machine; in addition, the virtual axis in the programmable controller is preset with the pulse number per revolution for calculating the angular velocity value of the virtual axis and the length value printed by each angle unit corresponding to each printing machine, and the pulse number per revolution is provided with zero points for calculating errors and resetting the running errors and aligning the reference points.
The working principle of using the above-mentioned photo-electric sensing servo control module 5b as a longitudinal phase adjusting device to adjust the phase is as follows: because the programmable controller is preset with a virtual shaft, and the virtual shaft is preset with the pulse number per revolution, the pulse number per revolution can be used for calculating the angular velocity value of the virtual shaft and the length value printed by each printing machine corresponding to each angle unit; and the pulse number of each rotation is provided with a zero point position which can be used for zero clearing of the calculation error and the running error and alignment of the reference position. The photoelectric detection device is used for identifying the accuracy of splicing or overprinting. In the specific embodiment, the angular speed of the virtual shaft is consistent with the angular speed of the printing machine servo motor. The virtual axis control mode is adopted, so that the control precision is improved, error accumulation caused by comparison of all the motors one by one can be reduced due to comparison of all the servo motors and the virtual axis, and meanwhile, stable operation of other printing machines cannot be influenced due to shutdown of any motor due to reasons.
When the photoelectric detection device detects that the patterns printed by the printer are spliced or overprinted at the required printing positions, the servo motor keeps operating at an angular speed synchronous with the virtual shaft (or in a specific ratio which is not one to one), so that the printed patterns always keep the mutual positions unchanged because the virtual shaft of the printing plate is consistent with the circumference of the printing plate (or in a specific ratio which is not one to one).
When the photoelectric detection device detects that the pattern printed by the printer is inconsistent with the patterns printed by other printers, the programmable controller sends a command to enable the printer to operate at a speed of a preset speed difference until the pattern printed by the printer reaches a position required by splicing or overprinting with the patterns printed by other printers, the programmable controller cancels the speed difference command, and the printer operates at a speed consistent with the virtual shaft operation angular speed (or at a specific proportion which is not one to one).
Because a lot of calculations are carried out every week in the operation process and operation errors are also carried out in the operation process, in order to avoid error accumulation in long-time operation, all errors of a program are cleared once when a virtual shaft passes through a zero point once, and all data are recalculated after the zero clearing, so that the errors have no chance to be accumulated, and the smooth operation of long-time production can be ensured.
Based on the above-described structure and principle, four specific examples are recorded below.
Detailed description of the preferred embodiment 1
Be applied to many concatenation formula printing system of makeup printing, this system includes three printing machines, and these three printing machines arrange with horizontal makeup dislocation mode, specifically are two rows for three printing machines and put, and the adjacent two printing machines dislocation of first row and second row are put, and the printing plate banner position concatenation of adjacent two printing machines corresponds, is located the same group printing machine mounting bracket of all printing machines sharing of same row. And a coaxial longitudinal angular displacement assembly is adopted for longitudinal phase adjustment.
The main transmission coaxial shafts are arranged at the middle positions of the two rows of printing machines along the X direction, and the power input wheel of the gear transmission assembly of each printing machine is directly connected with the main transmission coaxial shafts in a transmission way. And taking the printing plate banner position of one printing machine as a banner position reference, rotating hand wheels of transverse adjusting devices of other printing machines, driving the printing machines to move upwards in an X direction to adjust the relative positions of the printing plate banners of the other printing machines, and printing patterns of two adjacent printing machines on a printing material at a required interval and pulling the printing patterns to realize makeup printing. Meanwhile, the speed difference between the power output shaft and the power input shaft is adjusted through the rotation or not and the rotation direction of the worm of the longitudinal angular displacement device in the coaxial angular displacement assembly, so that the longitudinal relative position of the patterns printed by each single printing machine is adjusted. As shown in fig. 1.
Specific example 2
Be applied to many concatenation formula printing system of makeup printing, this system includes three printing machines, and these three printing machines arrange with horizontal makeup dislocation mode, specifically are two rows for three printing machines and put, and the adjacent two printing machines dislocation of first row and second row are put, and the printing plate banner position concatenation of adjacent two printing machines corresponds, is located the same group printing machine mounting bracket of all printing machines sharing of same row. And a photoelectric sensing servo control assembly is adopted for carrying out longitudinal phase adjustment.
The system is not provided with a main transmission coaxial shaft, and a gear transmission component connected with the main transmission coaxial shaft is not used. Only a programmable controller with a preset virtual shaft inside, three servo motors 5b1 corresponding to the printing machines one by one and three photoelectric detection devices corresponding to the printing machines one by one are arranged in the system, a main rotating shaft of each printing machine is connected with the servo motor in a positioning way and is controlled by the servo motor to rotate, one photoelectric detection device for detecting a printing position is arranged at the printing position of each printing machine in a positioning way, the servo motor and the photoelectric detection device corresponding to each printing machine are electrically connected with the programmable controller, namely, all the servo motors and the photoelectric detection devices are electrically connected with a total programmable controller, and the servo motor of each printing machine can adjust the longitudinal phase angle of the printing machine according to the comparison result of signals detected by the photoelectric detection device of the printing machine and the preset value of the virtual shaft of the programmable controller, and the adjustment of the longitudinal printing position of the makeup is realized. As shown in fig. 2. The specific adjustment process is described in the working principle section.
Specific example 3
Be applied to many concatenation formula printing system of chromatography, this system includes three printing machines, and these three printing machines arrange with vertical alignment chromatography mode, specifically are that three printing machines are a row interval and align and put, and the printing plate phase suit of each printing machine corresponds. Each printer uses a separate set of printer mounts. And a coaxial longitudinal angular displacement assembly is adopted for longitudinal phase adjustment.
The main transmission shaft is arranged between any two printers in the X direction, power input wheels of gear transmission assemblies of two printers coaxially adjacent to the main transmission shaft are directly in coaxial transmission connection with the main transmission shaft, and power output wheels of other printers are in rotating connection with the power input wheel of the previous printer to realize indirect transmission connection with the main transmission shaft. And (3) taking the printing plate banner position of one printing machine as a banner position reference, rotating hand wheels of the transverse adjusting devices of the other printing machines, driving the hand wheels to move upwards in X direction with the printing plate banner of each printing machine to adjust the relative positions of the printing plate banners of the other printing machines, and aligning the printing plate banners of the two adjacent printing machines in the X direction. Meanwhile, the speed difference between the power output shaft and the power input shaft is adjusted through the rotation or not and the rotation direction of the worm of the longitudinal angular displacement device in the coaxial angular displacement assembly, so that the longitudinal relative position of the patterns printed by each single printing machine is adjusted, the control of the relative angle of the printing plates of each printing machine is realized, and the multicolor overprinting of the printed patterns of each printing machine is realized. As shown in fig. 3.
Specific example 4
Be applied to many concatenation formula printing system of chromatography, this system includes three printing machines, and these three printing machines arrange with vertical alignment chromatography mode, specifically are that three printing machines are a row interval and align and put, and the printing plate phase suit of each printing machine corresponds. Each printer uses a separate set of printer mounts. And a photoelectric sensing servo control assembly is adopted for carrying out longitudinal phase adjustment.
The system is not provided with a main transmission coaxial shaft, and a gear transmission component connected with the main transmission coaxial shaft is not used. Only a programmable controller with a preset virtual shaft inside, three servo motors 5b1 corresponding to the printing machines one by one and three photoelectric detection devices corresponding to the printing machines one by one are arranged in the system, a main rotating shaft of each printing machine is connected with the servo motor in a positioning way and is controlled by the servo motor to rotate, one photoelectric detection device for detecting a printing position is arranged at the printing position of each printing machine in a positioning way, the servo motor and the photoelectric detection device corresponding to each printing machine are electrically connected with the programmable controller, namely, all the servo motors and the photoelectric detection devices are electrically connected with a total programmable controller, and the servo motor of each printing machine can adjust the longitudinal phase angle of the printing machine according to the comparison result of signals detected by the photoelectric detection device of the printing machine and the preset value of the virtual shaft of the programmable controller, realizing the multi-color overprinting of printed patterns of all printers. As shown in fig. 4. The specific adjustment process is described in the working principle section.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a many concatenation formula printing system, includes a plurality of printing machines (1) to paper web walking direction is Y to, in the horizontal plane with Y to the vertical direction be X to, use vertical direction to be Z to, its characterized in that: the printing machines are arranged in a transverse dislocation makeup mode or a longitudinal alignment nest plate mode, printing machine mounting frames (2) arranged in the X direction are respectively arranged on two sides of each printing machine in the X direction, support rods (3) capable of sliding along the printing machine mounting frames are transversely positioned on the printing machine mounting frames corresponding to each printing machine, and the printing machines are fixedly arranged on the support rods; a transverse adjusting device (4) is correspondingly arranged at each printing machine, the transverse adjusting device comprises an adjusting screw rod (401) arranged along the X direction, one end of the adjusting screw rod is provided with a fixed seat (402) fixed axially, the fixed seat is fixedly connected to a mounting rack of the printing machine, the other end of the adjusting screw rod is sleeved with a connecting support (403) capable of axially reciprocating along the adjusting screw rod, the printing machine is fixedly connected to the connecting support, and the adjusting screw rod rotates to drive the connecting support to reciprocate along the adjusting screw rod to position and move so as to drive the printing machine to reciprocate in the X direction; each printing machine is provided with a longitudinal phase adjusting device (5) capable of adjusting the printing phase in the Y direction.
2. The multi-station tiled printing system of claim 1, wherein: the longitudinal phase adjusting device is a coaxial longitudinal angular displacement component (5a) and is provided with a main transmission coaxial shaft (6) which is connected with the driving motor and driven by the driving motor, the coaxial longitudinal angular displacement assembly (5a) comprises a longitudinal angular displacement device (5a1) and a gear transmission assembly (5a2), the power output shaft (5a1-1) of the longitudinal angle displacement device is connected with the main rotating shaft of the printing machine in a positioning way through a spline, the power input shaft (5a1-2) of the longitudinal angle displacement device is connected with the central shaft of the power output wheel of the gear transmission assembly in a positioning way through splines, the power input wheel of the gear transmission component is directly or indirectly positioned and connected with the main transmission shaft (6) and is directly or indirectly driven to rotate by the main transmission shaft, so that the main transmission shaft drives the main rotating shafts of the printing machines to rotate.
3. The multi-station tiled printing system of claim 2, wherein: the longitudinal angle displacement device (5a1) comprises a worm (5a1-8) connected with and driven by the driving device and a worm wheel (5a1-9) meshed with the worm, the power output shaft (5a1-1) and the power input shaft (5a1-2) are coaxially positioned on the opposite radial sides of the worm wheel at intervals, and the power input shaft and the power output shaft can rotate circumferentially relative to the worm wheel; a main central transmission gear (5a1-3) which is coaxially sleeved on the power input shaft and is meshed with the power input shaft is positioned on the radial side surface of the worm wheel provided with the power input shaft, and a central transmission gear (5a1-4) which is coaxially sleeved on the power output shaft and is meshed with the power output shaft is positioned on the radial side surface of the worm wheel provided with the power output shaft; a plurality of planet gear shafts (5a1-7) which are positioned and connected with the inside of the worm gear are arranged in the worm gear at the outer circumference of the master and slave central transmission gears in a penetrating way, one end of each planet gear shaft close to the master central transmission gear is positioned and connected with a master planet transmission gear (5a1-5) meshed with the master central transmission gear, and one end of each planet gear shaft close to the slave central transmission gear is positioned and connected with a slave planet transmission gear (5a1-6) meshed with the slave central transmission gear.
4. The multi-station tiled printing system of claim 3, wherein: shaft key grooves are formed in two ends of each planetary gear shaft (5a1-7), gear key grooves are formed in positions, corresponding to the shaft key grooves, of the main planetary transmission gear and the auxiliary planetary transmission gear, and keys (5a1-10) are arranged in the shaft key grooves and the corresponding gear key grooves to enable the planetary gear shafts to be connected with the main planetary transmission gear and the auxiliary planetary transmission gear in a circumferential positioning mode.
5. The multi-station tiled printing system of claim 3, wherein: the longitudinal angle displacement device (5a1) further comprises a box body (5a1-11), the power output shaft and the power input shaft penetrate out of two opposite sides of the box body, and the worm penetrates out of the top of the box body.
6. The multi-station tiled printing system of claim 1, wherein: the longitudinal phase adjusting device (5) is a photoelectric sensing servo control assembly (5b) which comprises a programmable controller with a preset virtual shaft inside, a plurality of servo motors (5b1) corresponding to the number of the printing machines and a plurality of photoelectric detection devices corresponding to the number of the printing machines, wherein a main rotating shaft of each printing machine is connected with one servo motor in a positioning mode and is controlled to rotate by the servo motor, and the photoelectric detection devices used for detecting printing positions are positioned at the printing positions of each printing machine; the servo motor and the photoelectric detection device are electrically connected with the programmable controller, and the servo motor can adjust the longitudinal phase angle of the printing machine according to the comparison result of the signals detected by the photoelectric detection device and the preset value of the virtual shaft of the programmable controller.
7. The multi-station tiled printing system of claim 6, wherein: the virtual axis in the programmable controller keeps a specific angular velocity ratio with the angular velocity of the operation of the servo motor on each printing machine, the programmable controller is internally preset with the pulse per revolution for calculating the angular velocity value of the virtual axis and the length value printed by each printing machine corresponding to each angle unit, and the pulse per revolution is provided with a zero point position for calculating the error and the operation error to clear and align the reference position.
8. The multi-station tiled printing system of claim 1, wherein: the transverse adjusting device (4) further comprises a hand wheel (404), the hand wheel is fixedly connected to the end portion, close to the fixing seat (402), of the adjusting screw rod (401), and the hand wheel rotates to drive the adjusting screw rod to rotate around the central shaft of the adjusting screw rod.
9. The multi-station tiled printing system of claim 1, wherein: the transverse dislocation makeup arrangement mode is that a plurality of printing machines (1) are arranged in a row-shaped interval staggered manner in the X direction, and the printing plate banner positions of two adjacent printing machines are spliced and correspond to each other.
10. The multi-station tiled printing system of claim 1, wherein: the longitudinal alignment register plate arrangement mode is that a plurality of printing machines (1) are arranged in a row at intervals in the Y direction in an aligned mode, and the printing plates of all the printing machines are in phase position sleeved correspondence.
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| CN201910047922.0A CN111452491A (en) | 2019-01-18 | 2019-01-18 | Multi-splicing type printing system |
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| CN201910047922.0A CN111452491A (en) | 2019-01-18 | 2019-01-18 | Multi-splicing type printing system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111845046A (en) * | 2020-08-10 | 2020-10-30 | 四川兴达塑料有限公司 | 4 m broad width exhibition membrane printing aggregate unit |
| CN112606556A (en) * | 2020-12-16 | 2021-04-06 | 重庆宏声印务有限责任公司 | Flat-pressing flat gold-stamping embossing plate |
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