CN211641308U

CN211641308U - Printing equipment

Info

Publication number: CN211641308U
Application number: CN201922073799.8U
Authority: CN
Inventors: 郭宏亮; 雷杰
Original assignee: Shaanxi Boyan Intelligent Equipment Co ltd
Current assignee: Shenzhen Boyan Commercial Machinery Co ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-10-09
Anticipated expiration: 2029-11-26

Abstract

The utility model discloses a printing equipment, include: the two sides of the bedplate are provided with two walking rails parallel to the length direction of the bedplate, and the bedplate is used for bearing printing stocks; the two printers can respectively travel along the two travel rails in the same or opposite directions; the two printers are used for simultaneously printing the printing stock loaded on the bedplate; the printing machine includes: the device comprises walking devices for driving the printing machines to walk along the corresponding walking tracks, a complete machine positioning device for positioning the walking printing machines at a preset position, and a scraping and printing device for scraping printing ink from printing pattern meshes of a screen printing plate of the printing machines onto printing stocks. In the printing equipment, the two printing machines can simultaneously print the printing stock borne on the bedplate, so that the printing efficiency can be improved, and the requirement of small-format printing can be met.

Description

Printing equipment

Technical Field

The application relates to the technical field of printing equipment, in particular to printing equipment.

Background

Walk a desk-top platen calico printing machine is the equipment that calico printing machine can accomplish the printing task at platen automatic operation, and current walk a desk-top calico printing machine and have following shortcoming:

the first single bedplate and the single bedplate can only accommodate a single printing machine to work, so that the working efficiency is low, and the requirement of small-format printing is difficult to meet.

Secondly, adopt the automatic mode of atmospheric pressure mode transmission and control, to calico printing machine compact design, air compressor occupies that the volume is great, and the dead weight is great.

And thirdly, the transmission is not stable enough in the process of printing in a pneumatic transmission mode and control, when the load changes, the transmission motion is not stable and uniform enough, and the unstable motion condition can occur when the scraping stress becomes large, so that the speed and the position control precision of the system are greatly influenced.

Fourth, the use of air compressor can produce great noise, and air compressor power is big moreover, and corresponding energy consumption is high, and manufacturing cost is high.

SUMMERY OF THE UTILITY MODEL

The application aims at providing a printing device, which not only can improve the working efficiency, but also can meet the requirement of small-format printing.

The application provides a printing apparatus, includes:

the two sides of the bedplate are provided with two walking rails parallel to the length direction of the bedplate, and the bedplate is used for bearing printing stocks;

the two printers can respectively travel along the two travel rails in the same or opposite directions; the two printers are used for simultaneously printing the printing stock loaded on the bedplate; the printing machine includes: the device comprises walking devices for driving the printing machines to walk along the corresponding walking tracks, a complete machine positioning device for positioning the walking printing machines at a preset position, and a scraping and printing device for scraping printing ink from printing pattern meshes of a screen printing plate of the printing machines onto printing stocks.

Further, the printing apparatus, wherein the walking device includes: walking actuating mechanism and walking stop gear, walking actuating mechanism includes: the driving travelling wheels and at least two driven travelling wheels with mutually parallel axes, and driving travelling wheel driving motors; the driving travelling wheel driving motor is fixed on the printer frame, and the driving travelling wheel is fixed on a motor shaft of the driving travelling wheel driving motor; the at least two driven travelling wheels are rotatably arranged on the printer frame; the driving travelling wheel driving motor is positioned on one side of the printer frame, and the at least two driven travelling wheels are positioned on the opposite side of one side of the printer frame and/or positioned on the two adjacent sides of one side of the printer frame; the walking limiting mechanism comprises: the two walking limit tracks are respectively arranged on the two walking tracks, and the length direction of the walking limit tracks is vertical to the axis; the at least two walking limiting assemblies are mounted on the printer frame and used for positioning the printer frame along the length direction of the walking limiting rails.

Further, lithography apparatus, wherein, walking spacing subassembly includes: two limiting wheels, a limiting wheel fixing plate and a pushing unit; the top surface of the limiting wheel fixing plate is fixed on a printer frame, and the two limiting wheels are fixed on the bottom surface of the limiting wheel fixing plate; the distance between the two limiting wheels is suitable for the width of the walking limiting track, and the two limiting wheels are used for being clamped on the walking limiting track so as to keep the printer frame to be positioned along the length direction of the walking limiting track; the pushing unit is used for pushing one limiting wheel to move towards the other limiting wheel so as to enable the two limiting wheels to tightly clamp the walking limiting track.

Further, the printing apparatus, wherein the overall positioning device includes: the net rack lifting mechanism, the positioning column and the positioning sleeve are arranged on the frame; the rack elevating system includes: the net rack lifting screw rod is arranged along the vertical direction, one end of the net rack lifting screw rod is screwed on a net rack of the printing machine, and the other end of the net rack lifting screw rod is fixedly connected with a motor shaft of the net rack lifting drive motor; one end of the positioning column is arranged on the net rack of the printing machine, and the other end of the positioning column downwards protrudes to the lower part of the net rack of the printing machine; the positioning sleeve is arranged on the walking track and is provided with a positioning hole suitable for the positioning column; the scraping and printing device is fixed on the net rack of the printing machine.

Further, the printing apparatus, wherein the squeegee device includes: the scraper module and the scraper module translation actuating mechanism of setting on printing machine rack, scraper module translation actuating mechanism is used for the drive the scraper module removes, in order to scrape the china ink from the one end of printing machine half tone to the other end, perhaps, the drive the scraper module removes, in order to return black from the other end of printing machine half tone to one end.

Further, the printing apparatus, wherein the doctor module translation driving mechanism includes: the device comprises a translation driving motor arranged at one end of a screen printing plate of the printing machine, a driving wheel arranged on a motor shaft of the translation driving motor, a driven wheel arranged at the other end of the screen printing plate of the printing machine, and a conveying belt sleeved on the driving wheel and the driven wheel; the scraper module fixing plate is also provided with a scraper module connecting piece which is fixed on the conveying belt; the scraper module is arranged on the scraper module fixing plate.

Further, the printing apparatus, wherein the scraping device further includes: a elevating gear for driving scraper module goes up and down, elevating gear includes: doctor blade elevating system and ink return blade elevating system, doctor blade elevating system includes: the ink scraping blade lifting driving unit comprises an ink scraping blade lifting driving unit and an ink scraping blade guide rod, wherein the ink scraping blade guide rod is arranged on a scraper module fixing plate in a penetrating mode in a sliding mode along the vertical direction, and the ink scraping blade is connected to the bottom end of the ink scraping blade guide rod; the output end of the doctor blade lifting driving unit is fixedly connected with the top end of the doctor blade guide rod so as to drive the doctor blade guide rod to ascend or descend along the vertical direction; the ink return blade lifting mechanism comprises: the ink return knife comprises an ink return knife lifting driving unit and an ink return knife guide rod, wherein the ink return knife guide rod is arranged on a scraper module fixing plate in a penetrating mode in a sliding mode along the vertical direction, and the ink return knife is connected to the bottom end of the ink return knife guide rod; the output end of the ink returning blade lifting driving unit is fixedly connected with the top end of the ink returning blade guide rod so as to drive the ink returning blade guide rod to descend or ascend along the vertical direction.

Further, the printing apparatus, wherein the scraping device further includes: a doctor blade angle adjustment device for adjusting a doctor blade angle, the doctor blade angle adjustment device comprising: the ink scraping blade device comprises a scraping blade mounting seat, a fixing frame, a lifting plate and a lifting plate driving mechanism, wherein the scraping blade mounting seat is used for mounting a scraping blade; the top of the fixing frame is fixed on a doctor blade guide rod of the printing machine, and the doctor blade mounting seat is mounted at the bottom of the fixing frame and can swing around the length direction of the doctor blade; the lifting plate is hinged with the seat body of the doctor blade mounting seat; the lifting plate driving mechanism is used for driving the lifting plate to lift within a preset height range so as to drive the doctor blade mounting seat to swing within a preset angle range around the length direction of the doctor blade.

Further, printing apparatus, wherein, printing machine screen detachable installs on the printing machine rack, printing machine still includes: a printing machine screen positioner for inciting somebody to action printing machine screen location on printing machine rack, printing machine screen positioner includes: a leaning part, a fixed part, a movable part and a force application part; the leaning part is arranged on the screen printing plate of the printing machine and protrudes out of the screen printing plate of the printing machine; the fixing part is positioned at one side of the leaning part and leans against the leaning part; the fixed part is fixed on a screen printing plate of the printing machine or a net rack of the printing machine; the movable part is positioned at the other side of the leaning part; the movable part is provided with a first end and a second end, and the first end is used for movably mounting the movable part on a screen printing plate or a net rack of a printing machine so that the second end can rotate around the first end; the force application part is used for applying pulling force to the second end so as to enable the movable part to abut against the other side of the leaning part.

Further, the printing equipment, wherein still be provided with the wiping line on the walking track, still set up the current collector on the printing machine, the current collector is used for following the wiping line slides in order to pick up the electric energy.

The utility model has the advantages that:

the application provides a printing apparatus, includes: the two sides of the bedplate are provided with two walking rails parallel to the length direction of the bedplate, and the bedplate is used for bearing printing stocks; the two printers can respectively travel along the two travel rails in the same or opposite directions; the two printers are used for simultaneously printing the printing stock loaded on the bedplate; the printing machine includes: the device comprises walking devices for driving the printing machines to walk along the corresponding walking tracks, a complete machine positioning device for positioning the walking printing machines at a preset position, and a scraping and printing device for scraping printing ink from printing pattern meshes of a screen printing plate of the printing machines onto printing stocks. The printing equipment adopts a printing mode of a walking-table type printing machine to print the printing stock on the bedplate. The difference is that in the printing equipment, two sides of the bedplate are respectively provided with two walking tracks parallel to the length direction of the bedplate, and the bedplate is used for bearing printing stocks. The two printers can respectively walk along the two walking tracks, and the walking directions are the same or opposite. The two printers can print the printing stock loaded on the bedplate simultaneously, so that the printing efficiency is obviously improved.

Drawings

FIG. 1 is a top view of a printing apparatus provided herein;

FIG. 2 is an isometric view of a printing apparatus provided herein;

FIG. 3 is a schematic diagram of a printing press provided herein;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a schematic structural diagram of a travel drive mechanism provided herein;

fig. 6 is a schematic structural view of a walking limiting mechanism provided in the present application;

FIG. 7 is a schematic structural view of a stop assembly provided herein;

FIG. 8 is a schematic view of FIG. 7 from another perspective;

FIG. 9 is a schematic view of a printer provided herein in cooperation with a platen;

FIG. 10 is a schematic view of the overall positioning apparatus provided in the present application;

fig. 11 is a schematic view of the installation position of the rack lifting mechanism provided by the present application;

fig. 12 is an exploded view of the rack lifting mechanism provided in the present application;

FIG. 13 is a schematic view of the positioning sleeve provided by the present application in an installed position on a platen;

fig. 14 is a schematic structural diagram of a lifting device of a doctor blade module in the printing apparatus provided in the present application;

FIG. 15 is a schematic illustration of the position of a doctor blade sensor blade in relation to a doctor blade sensor as provided herein;

FIG. 16 is a schematic structural view of a doctor blade angle adjustment mechanism provided herein;

FIG. 17 is an enlarged view of a portion of FIG. 16;

FIG. 18 is a schematic view showing a positional relationship between a rotary shaft and a doctor blade mounting seat in the doctor blade angle adjusting apparatus of the present application;

FIG. 19 is a schematic view of another embodiment of the doctor blade angle adjustment mechanism of the present application;

fig. 20 is a schematic view of a screen of a printing press provided by the present application mounted on a screen frame of the printing press;

FIG. 21 is an enlarged view of a portion of FIG. 1 at B;

fig. 22 is a schematic diagram of a positioning device of a screen of a printing machine according to the present application.

Detailed Description

The present application will be described in further detail below with reference to the accompanying drawings by way of specific embodiments.

The application provides a lithography apparatus, and this lithography apparatus adopts the printing mode of walking the platform formula calico printing machine to print the stock on the platen, and the difference is, among this lithography apparatus, the both sides limit of platen is equipped with two walking tracks that are on a parallel with platen length direction respectively, and the platen is used for bearing the stock. The two printers can respectively walk along the two walking tracks, and the walking directions are the same or opposite. The two printers can print the printing stock loaded on the bedplate simultaneously, so that the printing efficiency is obviously improved.

In the following examples, the printing machine is described by taking a screen printing machine as an example.

Referring to fig. 1 to 3, the present application provides a printing apparatus including: a platen 100 and two screen printers 200.

Two walking rails 101 parallel to the length direction of the platen 100 are arranged on two side edges of the platen 100, and the platen 100 is used for bearing printing materials parallel to the walking rails 101.

The two screen printers 200 can respectively travel along the two travel rails 101, and the travel directions of the two screen printers 200 along the respective travel rails 101 are the same or opposite. The two screen printers 200 are used for simultaneously printing the printing stock loaded on the platen 100, so that the printing efficiency can be improved, and the requirement of small-format printing can be met.

In the present embodiment, the screen printer 200 includes: the device comprises a walking device 1, a whole machine positioning device 2 and a scraping and printing device 3. The traveling device 10 is used for driving the screen printer 200 to travel along the respective corresponding traveling track 101, the complete machine positioning device 2 is used for positioning the traveling screen printer 200 at a preset position (i.e. traveling once for printing), and the scraping and printing device 3 is used for scraping and printing ink on the screen plate 4 of the screen printer onto a printing stock from the printing pattern mesh of the screen plate 4 of the screen printer at the preset position where the screen printer 200 is positioned by the complete machine positioning device 2 so as to print the printing stock.

In an embodiment, two rows of printing materials parallel to the traveling rail 101 are loaded on the platen 100, and the two rows of printing materials on the platen 100 are printed simultaneously by the two screen printers 200 during the process of respectively traveling along the traveling rail 101 on the platen 100, so that not only can the printing efficiency be improved, but also the requirement of small-format printing can be met.

Referring to fig. 4 to 8, the walking device 1 provided in the present embodiment includes: the screen printing machine comprises a walking driving mechanism 11 and a walking limiting mechanism 12, wherein the walking driving mechanism 11 is used for driving the screen printing machine 200 to walk along a walking track 101 on a platen 100, and the walking limiting mechanism 12 is used for positioning the walking screen printing machine so as to enable the walking screen printing machine to walk along a certain walking route (the length direction of the walking track 101).

As shown in fig. 4 and 5, the travel drive mechanism 11 includes: a ground engaging wheel 111, at least two ground engaging wheels 112, and a ground engaging wheel drive motor 113. The axes of the driving travelling wheels 111 and the axes of the at least two driven travelling wheels 112 are parallel to each other, the driving travelling wheel driving motor 113 is fixed on the screen printer frame 5, and the driving travelling wheels 111 are fixed at the motor shaft ends of the driving travelling wheel driving motor 113. At least two driven road wheels 112 are rotatably mounted on the screen printer frame 5.

The road-engaging wheels 111 and the at least two road-engaging wheels 112 form a support structure for supporting the screen printer frame 5 on the platen 100. As shown in fig. 4, the driving road wheel driving motor 113 is located on one side of the screen printer frame 5, and the at least two driven road wheels 112 may be located on opposite sides of one side of the screen printer frame 5, or the at least two driven road wheels 112 may be located on adjacent sides of one side of the screen printer frame 5, or the at least two driven road wheels 112 may be located on opposite sides of one side and adjacent sides of one side of the screen printer frame 5. In the present embodiment, three driven traveling wheels 112 are provided, and the three driven traveling wheels 112 are respectively located on one side of the screen printer frame 5 and the opposite side of one side, so as to form a rectangular structure with the driving traveling wheel 111.

In other embodiments, the driven road wheels 112 may be provided in a larger number, or two driven road wheels 112 may be provided, and two driven road wheels 112 are respectively located on opposite sides of one side of the screen printer frame 5, or two driven road wheels 112 are respectively located on two adjacent sides of one side of the screen printer frame 5, and form a triangular structure with the driving road wheel 111.

When printing is required on the substrate on the platen 100, the screen printer 200 is placed on the platen 100, and the trolley 111 and the trolley 112 provided on the screen printer frame 5 support the screen printer 200 on the platen 100. The trolley drive motor 113 is operated to drive the trolley 111 to rotate, and the rotating trolley 111 rotates the trolley 112, thereby moving the screen printer 200 on the platen 100.

The driving traveling wheel driving motor 113 is a servo motor, under normal conditions, the rotating speed of the servo motor is high, the torque of the motor is relatively low, and the motor cannot drive heavy objects, so that the traveling driving mechanism 11 in the application further comprises the following components: and a reduction gear 114, wherein the reduction gear 114 is fixed to the screen printer frame 5, a motor shaft of the ground engaging wheel drive motor 113 is fixedly connected to an input shaft of the reduction gear 114, and the ground engaging wheel 111 is fixed to an output shaft of the reduction gear 114.

In one embodiment, the travel drive mechanism 11 further includes: and one end of the connecting shaft 115 is fixedly connected with an output shaft of the speed reducer 114, and the other end of the connecting shaft 115 is fixed on the active road wheel 111.

As shown in fig. 5, the active road wheel 111 includes: the annular wheel 1111 and the expansion sleeve 1112, the expansion sleeve 1112 is expanded in the inner ring of the annular wheel 1111, and the other end of the connecting shaft 115 is fixed in the inner ring of the expansion sleeve 1112, so that the driving road wheel 111 is stably fixed at the other end of the connecting shaft 115.

Of course, in other embodiments, the connecting shaft 115 may not be provided, and the ground engaging wheels 111 may also be driven to rotate.

In the present application, the driven road wheels 112 are ordinary rotating wheels. Of course, a structure such as the active road wheels 111 may also be employed.

In the above embodiment, the travel driving mechanism 11 has a simple structure, and is convenient to assemble and maintain. Meanwhile, the driving motor and the speed reducer are adopted for driving, the traditional gear transmission mode is abandoned, and the noise generated during walking is effectively reduced.

As shown in fig. 6, the walking limiting mechanism 12 provided by the present application includes: the walking limiting track 121 is arranged on the walking track 101 of the bedplate 100, specifically, the walking limiting track 121 is arranged on the walking track 101 along the length direction of the bedplate 100, and the length direction of the walking limiting track 121 is perpendicular to the axes of the driving walking wheel 111 and the driven walking wheel 112. The travel limit rail 121 forms a path along which the screen printer 200 travels. At least two walking limit assemblies 122 are installed on the screen printer frame 5, and the walking limit assemblies 122 are used for positioning the screen printer frame 5 along the length direction of the walking limit rail 121 so as to keep the screen printer moving along the length direction of the walking limit rail 121 under the driving of the walking driving mechanism 11.

As shown in fig. 7 and 8, the walking stopper assembly 122 includes: two spacing wheels 1221, and a spacing wheel fixing plate 1222. The top surface of the limiting wheel fixing plate 1222 is fixed on the screen printing machine frame 5, the two limiting wheels 1221 are both fixed on the bottom surface of the limiting wheel fixing plate 1222, the distance between the two limiting wheels 1221 is suitable for the width of the walking limiting rail 121, so that the two limiting wheels 1221 are clamped on the walking limiting rail 121 to keep the screen printing machine frame 5 positioned along the length direction of the walking limiting rail 121, that is, keep the screen printing machine 200 driven by the walking driving mechanism 11 to move along the length direction of the walking limiting rail 121.

In this application, for the convenience of the tight spacing track 121 of walking of two spacing wheels 1221 clamp, this spacing subassembly 122 of walking still includes: and the pushing unit 1223, the pushing unit 22 is used for pushing one limiting wheel 1221 to move towards the other limiting wheel 1221, so that the two limiting wheels are clamped on the traveling limiting rail 121.

In one embodiment, the pushing unit 1223 includes: a rotating arm 12231, a fixed block 12232, at least one elastic member 12233, and at least one adjusting bolt 12234. The rotating arm 12231 and the fixing block 12232 are both mounted on the bottom surface of the limiting wheel fixing plate 1222, and the rotating arm 12231 has a mounting position a (as shown in fig. 8) for mounting on the limiting wheel fixing plate 1222, and the rotating arm 12231 can rotate around the mounting position a. A limiting wheel 1221 is fixed on the rotating arm 12231, and another limiting wheel 1221 is fixed on the bottom surface of the limiting wheel fixing plate 1222. The elastic member 12233 is located between the rotating arm 12231 and the fixing block 12232, and the elastic member 12233 is specifically a spring, and is used for storing elastic potential energy when the two limiting wheels 1221 are engaged with the walking limiting track 121, so that the rotating arm 12231 drives one limiting wheel 1221 to move towards the other limiting wheel 1221, and thus the two limiting wheels 1221 clamp the walking limiting track 121.

The fixing block 12232 is provided with a mounting hole which is substantially perpendicular to the rotating arm 12231 in the axial direction, the mounting hole comprises a threaded section and a bearing section, the threaded section is far away from the rotating arm 12231, the bearing section is close to the rotating arm 12231, one end of the elastic part 12233 is located in the bearing section, the adjusting bolt 12234 is screwed in the threaded section, the adjusting bolt 12234 is used for adjusting the elastic potential energy stored in the elastic part 12233, so as to adjust the force of one limiting wheel 1221 pressing to the other limiting wheel 1221, and therefore the distance between the two limiting wheels 1221 is suitable for walking limiting rails 121 with different widths.

Place screen printing machine on the platen, rotatory adjusting bolt 12234 for a spacing wheel 1221 can remove to the direction of keeping away from another spacing wheel 1221, thereby, adjust the width that the interval between two spacing wheels 1221 is greater than the spacing track 121 of walking, place two spacing wheels 1221 in the both sides of the spacing track 121 of walking, the reverse rotation of rethread adjusting bolt 12234 makes a spacing wheel 1221 remove to the direction of another spacing wheel 1221, and then two spacing wheels 1221 press from both sides tight spacing track 121 of walking. The drive road wheels 111 and the driven road wheels 112 support the screen printer on the platen while placing the screen printer on the platen. At this time, the driving traction wheel driving motor 113 starts to operate, torque is output to the driving traction wheel 111 through the speed reducer 114 and the connecting shaft 115, and the rotating driving traction wheel 111 drives the driven traction wheel 112 to rotate, so that the screen printing machine travels on the platen.

In the present application, the single-row printed material carried on the platen 100 includes a plurality of printed material units in rows, and the screen printing machine 200 is driven by the traveling device 1 to print one printed material unit each time the screen printing machine moves, that is, the whole positioning device 2 positions the screen printing machine 200 at a preset position corresponding to one printed material unit. Specifically, referring to fig. 9 to 12, the overall positioning device 2 provided by the present application includes: a net rack lifting mechanism 21, a positioning column 22 and a positioning sleeve 23.

As shown in fig. 10 and 11, two net rack lifting mechanisms 21 are provided, which are respectively located on both sides of the frame 5 of the screen printing machine, and the net rack lifting mechanisms 21 on both sides can be simultaneously lifted or lowered to drive the net rack 6 of the screen printing machine to be simultaneously lifted or lowered. Specifically, each rack lifting mechanism 21 includes: net rack elevating screw 211 and net rack elevating drive motor 212, net rack elevating screw 211 sets up along vertical direction, this net rack elevating screw 211's one end and 6 threaded connection of screen printing machine net rack, net rack elevating screw 211's the other end and net rack elevating drive motor 212's motor shaft end fixed connection, net rack elevating drive motor 212 rotates and drives net rack elevating screw 211 and rotate, because net rack elevating screw 211's one end spiro union is on screen printing machine net rack 6, then net rack elevating screw 211 turns into the linear motion of screen printing machine net rack 6 with the rotary motion of self, thereby drive printing machine net rack 6 and rise or descend.

In one embodiment, the screen printer frame 6 is raised by the frame lift drive motor 212 driving the frame lift screw 211 to rotate clockwise (or counterclockwise), or the screen printer frame 6 is lowered by the frame lift drive motor 212 driving the frame lift screw 211 to rotate counterclockwise (or clockwise).

And one end of the positioning column 22 is fixedly arranged on the printing machine net rack 6, and the other end of the positioning column 22 downwards protrudes to the lower part of the printing machine net rack 6.

And a positioning sleeve 23, wherein the positioning sleeve 23 is fixed on the running rail 101 of the bedplate 100, and the positioning sleeve 23 is provided with a positioning hole (not shown) suitable for the positioning column 22.

The screen frame elevating mechanism 21 drives the screen printer screen frame 6 to descend in the vertical direction, so that the positioning posts 22 are inserted into the positioning holes of the positioning bushes 23, thereby positioning the screen printer 200 as a whole. As shown in fig. 13, specifically, a plurality of positioning sleeves 23 are arranged on the platen 100 at equal intervals along the length direction of the traveling rail 101, and after the screen printer 200 moves a certain distance (distance between two adjacent positioning sleeves) along the length direction of the traveling rail 101, the rack lifting mechanism 21 drives the screen printer rack 6 to descend, so that the positioning posts 22 are inserted into the positioning holes of the positioning sleeves 23 to integrally position the screen printer 200, thereby facilitating printing on the printing object on the platen 100. After printing is completed, the frame lifting mechanism 21 drives the screen printer frame 6 to lift, and then the screen printer 200 moves a certain distance along the traveling track 101 again, and then is positioned in the same manner to print another printing object (or other parts of the printing object), and the process is repeated to complete the printing work.

In the above embodiment, in order to ensure the accuracy of the positioning of the moving printing machine rack, correspondingly, the positioning device of the whole machine may further include: the screen printing machine comprises a positioning sensor and a plurality of positioning induction sheets, wherein the positioning sensor is arranged on the frame 5 of the screen printing machine, and the positioning sensor is electrically connected with a net rack lifting driving motor 212 to control the work of the net rack lifting driving motor 212. The plurality of positioning sensing pieces are distributed on the traveling rail 101 along the length direction of the traveling rail 101, and correspond to the plurality of positioning sleeves 23 one to one. It can be understood that, the distance between two adjacent location response pieces is certain distance promptly, move certain distance along walking track 101 at screen printing machine 200, and after location sensor sensed the location response piece, location sensor will sense signal output for rack lift driving motor 212, rack lift driving motor 212 begins work, the rotary motion through with rack lift lead screw 211 turns into linear motion, thereby drive screen printing machine rack 6 and descend, make reference column 22 insert in the locating hole of position sleeve 23, thereby accomplish the location. When the screen printer 200 which has finished printing needs to move, the net rack lifting drive motor 212 drives the net rack 6 of the screen printer to lift, so that the positioning columns 22 are separated from the positioning holes in the positioning sleeves 23. The process can be realized by a time sequence control mode determined by printing time, belongs to a control mode of the prior art, and is not described herein again.

In an embodiment, an end of the positioning column 22 facing the positioning hole is provided with a guiding portion with a predetermined taper, and the positioning hole is a guiding hole with a predetermined taper, so as to facilitate the insertion of the positioning column 22 into the guiding hole.

The complete machine positioning device provided by the embodiment further comprises: elastic component 24, this elastic component 24 is located between reference column 22 and the printing machine rack 6, drives screen printing machine rack 6 decline at rack elevating system 21 for when reference column 22 inserted the locating hole of position sleeve 23, elastic component 24 played the cushioning effect to reference column 10, guaranteed the stability and the security of location.

In order to facilitate the installation of the elastic member 24 and the positioning column 22, the positioning device of the whole machine further comprises: location post seat 25, location post seat 25 install on the bottom surface of printing machine rack 6, and this location post seat 25 is formed with and holds the chamber, and elastic component 24 is arranged in holding the chamber, and reference column 22 slidable wears to establish in the bottom of location post seat 25, and the one end of reference column 21 stretches into and holds in the chamber. One end of the elastic member 24 abuts against one end of the positioning column 22, and the other end of the elastic member 24 abuts against the top wall of the accommodating cavity.

In the present application, the elastic member 24 specifically includes a gas spring, the axial direction of the gas spring is the vertical direction, and the other end of the gas spring is fixed on the top wall of the accommodating cavity of the positioning column base 25.

It is understood that the aforementioned positioning sensor may be disposed on the positioning column base 25, and the plurality of positioning sensing pieces are respectively disposed in the positioning holes of the positioning sleeve 23.

Referring to fig. 12, the rack lifting mechanism 21 further includes: a fixed frame 213, a rack elevating screw nut 214, a rack connecting block 215, a guide assembly, a fixed plate 218 and a guard plate 219. The fixing plate 218 is fixed to one surface of the fixing frame 213, the protection plate 219 is fixed to the other surface of the fixing frame 213, the fixing frame 213 is fixed to the frame 5 of the screen printer 200, the rack elevating drive motor 212 is fixed to the top end of the fixing frame 213, that is, the motor shaft of the rack elevating drive motor 212 is disposed downward, the rack elevating screw nut 214 is fixed to the rack connecting block 215, the printer rack 6 is fixed to the rack connecting block 215, the motor shaft of the rack elevating screw motor 12 is screwed into the rack elevating screw nut 214, and the axial direction of the rack elevating screw 211 is disposed in the vertical direction. The guide assembly includes: the guide rail 216 is fixed on the fixed frame 213, the length direction of the guide rail 216 is vertical, and the sliding block 217 is slidably arranged on the guide rail 216 to guide the screen printing machine rack 6.

The present application provides a squeegee device 3 including: the scraper module and the scraper module translation actuating mechanism which are arranged on the screen printing machine net rack 6 are used for driving the scraper module to move from one end of the screen printing machine screen plate 4 to the other end so as to scrape ink, or driving the scraper module to move from the other end of the screen printing machine screen plate 4 to one end so as to return ink.

Referring to fig. 14, the doctor blade module 3 of the present embodiment includes: the scraping blade 34 is used for extruding ink from meshes of a printing pattern part of the screen plate 4 of the screen printing machine onto a printing stock during scraping, and the ink returning blade 35 is used for reversely scraping the residual ink to a position before scraping during ink returning, so that the phenomenon of screen blockage of the meshes of the printing pattern part of the screen plate 4 of the screen printing machine is avoided.

In one embodiment, the doctor module translation drive mechanism comprises: the setting is at 4 one ends translation driving motor of screen printing machine half tone, installs the action wheel at translation driving motor epaxial, sets up the follow driving wheel from the driving wheel at 4 other ends of screen printing machine half tone to and cup joint at the action wheel and follow the conveyer on the driving wheel. Still be provided with scraper module connecting piece on printing machine scraper module fixed plate, this scraper module connecting piece is fixed on the conveyer belt, and the scraper module is fixed on scraper module fixed plate. The translation driving motor drives the driving wheel to rotate, and the rotating driving wheel drives the conveying belt to rotate so as to drive the scraper module fixing plate to move along the conveying direction of the conveying belt. The moving process of the scraper module from one end of the screen 4 of the screen printing machine to the other end, or from the other end of the screen 4 of the screen printing machine to one end, is the moving process of the scraper module fixing plate.

In some embodiments, an in-position sensor may be disposed at one end and the other end of the screen 4 of the screen printing machine, and an in-position sensing unit may be disposed on the frame 5 of the screen printing machine opposite to the two ends, the in-position sensor being electrically connected to the translation driving motor, and the in-position sensor being configured to detect the in-position sensing unit. When the scraper module translation driving mechanism drives the scraper module fixing plate to move (or reversely move) from one end of the screen printing machine screen plate 4 to the other end, the in-place sensor at one end (or the other end) controls the translation driving motor to stop rotating and then reversely rotate when detecting the in-place sensing unit corresponding to the end.

The application provides a lifting device can automatically drive scraping blade 34 decline when scraping the china ink, and automatically drive back the china ink sword 35 and rise, and automatically, drive back china ink sword 35 decline when returning the china ink and automatically, and the automatic doctor blade 34 that drives rises effectively replaces artifical manual regulation scraping blade 34 and back china ink sword 35 to rise or descend, saves the time cost of production to improve production efficiency. Moreover, because the rising or falling of the scraping blade 34 and the ink return blade 35 is realized in a motor-driven mode, the adjustment precision is high, and the pressure of the scraping blade pressing the screen plate 4 of the screen printing machine is effectively ensured, thereby improving the printing quality.

With continued reference to fig. 14, the lifting device 3 of the printing press doctor module provided in this embodiment mainly includes: a doctor module fixing plate 31, a doctor blade lifting mechanism 32 and a return blade lifting mechanism 33. During the ink scraping process, the doctor blade elevating mechanism 32 drives the doctor blade 34 to descend onto the screen 4 of the screen printing machine, and simultaneously, the ink return blade elevating mechanism 33 drives the ink return blade 35 to ascend away from the screen 4 of the screen printing machine. During ink return, the doctor blade elevating mechanism 32 drives the doctor blade 34 to move up and away from the screen 4 of the screen printing machine, and simultaneously, the ink return blade elevating mechanism 33 drives the ink return blade to move down onto the screen 4 of the screen printing machine.

The doctor blade elevating mechanism 32 includes: the doctor blade lifting driving unit 321, the doctor blade guide rod 322, and the doctor blade linear bearing 323, and more specifically, the doctor blade lifting driving unit 321, the doctor blade guide rod 322, and the doctor blade linear bearing 323 are all provided in two, and the two doctor blade lifting driving units 321, the two doctor blade guide rods 322, and the two doctor blade linear bearings 323 correspond one to one.

The two doctor blade guide rods 322 are slidably disposed through the doctor module fixing plate 31 in the vertical direction, that is, the two doctor blade guide rods 322 can reciprocate in the vertical direction. The two doctor blade linear bearings 323 are both disposed on the doctor module fixing plate 31, and the axial lines of the two doctor blade linear bearings 323 are vertical, and the two doctor blade guide rods 322 are respectively disposed through the two doctor blade linear bearings 323, so that the doctor blade guide rods 322 can slide in a reciprocating manner in the vertical direction along the axial lines of the doctor blade linear bearings 323.

The bottom at two doctor blade guide arms 322 is connected to doctor blade 34, be connected with doctor blade mount pad 341 in the bottom of two doctor blade guide arms 322, doctor blade mount pad 341 is the cuboid shape, the doctor blade mounting groove of opening down has been seted up to the length direction at doctor blade mount pad 341, clip doctor blade 34 through two doctor blade splint 342, and fix two doctor blade splint 342 in the doctor blade mounting groove, thereby make doctor blade 34 fixed connection in the bottom of two doctor blade guide arms 322.

The doctor blade lifting driving unit 321 can output reciprocating motion in the vertical direction, and an output end of the doctor blade lifting driving unit 321 is fixedly connected with a top end of the doctor blade guide rod 322 to provide power for the reciprocating sliding of the doctor blade guide rod 322 in the vertical direction along the axial line of the doctor blade linear bearing 323, so as to drive the doctor blade guide rod 322 to ascend or descend in the vertical direction, and further drive the doctor blade 34 to ascend or descend.

The ink recovery blade elevating mechanism 33 includes: the ink returning blade lifting driving unit 331, the ink returning blade guide rod 332 and the at least two ink returning blade linear bearings 333, wherein the ink returning blade lifting driving unit 331 is provided with at least one, the ink returning blade guide rod 332 and the ink returning blade linear bearings 333 are provided with at least two, and the at least two ink returning blade guide rods 332 and the at least two ink returning blade linear bearings 333 correspond to each other one by one.

The at least two ink returning blade guide rods 332 are slidably arranged on the scraper module fixing plate 31 in a penetrating manner along the vertical direction, and the at least two ink returning blade guide rods 332 can reciprocate in the vertical direction. The at least two ink returning blade linear bearings 333 are arranged on the scraper module fixing plate 31, the axial lines of the at least two ink returning blade linear bearings 333 are in the vertical direction, and the at least two ink returning blade guide rods 332 are respectively arranged in the at least two ink returning blade linear bearings 333 in a penetrating manner, so that the ink returning blade guide rods 332 can slide in a reciprocating manner in the vertical direction along the axial lines of the ink returning blade linear bearings 333.

The ink return blade 35 is connected to the bottom ends of the at least two ink return blade guide rods 332, the ink return blade mounting seat 351 is connected to the bottom ends of the at least two ink return blade guide rods 332, an ink return blade mounting groove is formed in the length direction of the ink return blade mounting seat 351, and the ink return blade 35 is fixed in the ink return blade mounting groove, so that the ink return blade 35 is connected to the bottom ends of the at least two ink return blade guide rods 332.

The ink returning blade lifting driving unit 331 can output reciprocating motion in the vertical direction, and the ink returning blade lifting driving unit 331 is fixedly connected with the top end of the ink returning blade guide rod 332 to provide power for the ink returning blade guide rod 332 to slide in the vertical direction along the axial line of the ink returning blade linear bearing 333 in a reciprocating manner, so as to simultaneously drive at least two ink returning blade guide rods 332 to descend or ascend in the vertical direction, and thus drive the ink returning blade 35 to descend or ascend.

As described above, when printing the printing material, ink is poured from one end of the screen 4 of the screen printing machine, and the doctor blade lifting/lowering driving unit 321 drives the doctor blade guide rod 322 to move up and down along the axial line of the doctor blade linear bearing 323 in the vertical direction to drive the doctor blade 34 to move down, so that the doctor blade 34 is attached to the screen 4 of the screen printing machine to apply a certain pressure to the ink portion on the screen 4 of the screen printing machine. Meanwhile, the ink return blade lifting drive unit 331 drives the ink return blade guide rod 332 to lift in the vertical direction along the axial line of the ink return blade linear bearing 333 to drive the ink return blade 35 to lift, so that the ink return blade 35 is far away from the screen 4 of the screen printing machine. Then, the doctor module moves at a constant speed along the direction from one end of the screen 4 of the screen printer to the other end to drive the doctor blade 34 to move, and the ink is extruded onto the printing stock from the meshes of the image-text part of the screen 4 of the screen printer by the moving doctor blade 34, so as to print the printing stock. After printing, the doctor blade 34 is lifted under the action of the doctor blade lifting drive unit 321, meanwhile, the ink return blade 35 is lowered under the action of the ink return blade lifting drive unit 331, then, the doctor blade module moves reversely again to drive the ink return blade 35 to move reversely, the ink return blade 35 again scrapes the residual ink reversely to the position before scraping, and the phenomenon that meshes of the image-text part of the screen printing machine 4 are blocked can be avoided.

It should be noted that, during ink scraping, the doctor blade 34 needs to be completely attached to the screen 4 of the screen printing machine, and the doctor blade 34 provides a certain pressure to the screen 4 of the screen printing machine for the doctor blade 34 through the doctor blade lifting mechanism 32, that is, during ink scraping, it is necessary to ensure the pressure balance at both ends of the doctor blade 34, so that two doctor blade driving units 21 are provided, and when one end of the doctor blade 34 is not completely attached to the screen 4 of the screen printing machine, it is possible to adjust the end through the doctor blade driving unit 21 at the end, so as to make it reach the pressure required during ink scraping.

The doctor blade elevation drive unit 321 includes: a doctor blade driving motor 3211, a doctor blade screw 3212, a doctor blade nut 3213, and a doctor blade connecting plate 3214. The doctor blade driving motor 3211 is mounted on the bottom surface of the doctor module fixing plate 31 such that a motor shaft of the doctor blade driving motor 3211 faces upward of the doctor module fixing plate 31. A doctor blade driving motor 3211 is fixed to the doctor module fixing plate 31, a doctor blade nut 3213 is fixed to the doctor blade connecting plate 3214, and the tip of the doctor blade guide bar 322 is fixedly connected to the doctor blade connecting plate 3214. The doctor screw 3212 is disposed vertically, one end of the doctor screw 3212 is fixedly connected to a motor shaft of the doctor driving motor 3211, and the other end of the doctor screw 3212 is screwed into the doctor nut 212. The doctor blade driving motor 3211 rotates to drive the doctor blade screw 3212 to rotate, and the doctor blade connecting plate 3214 converts the rotational motion of the rotating doctor blade screw 3212 into a linear motion to drive the doctor blade guide rod 322 fixedly connected thereto to reciprocate in the vertical direction, thereby driving the doctor blade 34 to ascend or descend.

In order to facilitate the control of the height at which the doctor blade 34 is lowered, the doctor blade elevation drive unit 321 provided in the present embodiment further includes: and a doctor blade height detecting unit electrically connected to the doctor blade driving motor 3211, and configured to control the doctor blade driving motor 3211 to stop working after the doctor blade guide rod 322 descends to a certain height in the vertical direction.

Specifically, the doctor blade height detection unit includes: a doctor blade sensor blade 3215, a doctor blade sensor 3216, and a doctor blade sensor mounting 3217. The doctor blade sensing blade 3215 has a length direction at least in the vertical direction. The doctor blade sensor 3215 is mounted on the doctor blade connecting plate 3214, and the doctor blade sensor 3216 is fixed to the doctor module fixing plate 31, specifically, the doctor blade sensor mounting bracket 3217 is fixed to the doctor module fixing plate 31, and the doctor blade sensor 3216 is fixed to the doctor module fixing plate 31 through the doctor blade sensor mounting bracket 3217. The distance between the bottom end of the doctor blade sensor 3215 and the doctor blade sensor 3216 is the height at which the doctor blade 34 is lowered. The doctor blade sensor 3216 is electrically connected to the doctor blade driving motor 3211, and when the doctor blade sensor 3216 senses the doctor blade sensing blade 3215 while the doctor blade lifting/lowering driving unit 321 drives the doctor blade 34 to move down, the doctor blade sensor 3216 controls the doctor blade driving motor 3211 to stop working, so as to control the height of the doctor blade 34 to move down.

In an embodiment, the doctor blade sensor 3215 is detachably mounted on the doctor blade connecting plate 3214, and specifically, a doctor blade sensor blade through hole is formed in the doctor blade connecting plate 3214 for the doctor blade sensor blade 3215 to penetrate through, the doctor blade sensor blade 3215 is fixed in the doctor blade sensor blade through hole by a fastening member (e.g., a jack), and when the distance between the doctor blade sensor blade 3215 and the doctor blade sensor 3216 needs to be adjusted, the fastening member may be loosened to adjust the distance.

The ink return blade lifting/lowering driving unit 331 includes: a return blade driving motor 3311, a return blade screw 3312, a return blade nut 3313, and a return blade connecting plate 3314. The ink recovery blade driving motor 3311 is installed on the bottom surface of the doctor module fixing plate 31 such that the motor shaft of the ink recovery blade driving motor 3311 faces upward of the doctor module fixing plate 31. The ink return blade driving motor 3311 is fixed to the doctor module fixing plate 31, the ink return blade nut 3313 is fixed to the ink return blade connecting plate 3314, and the top end of the ink return blade guide rod 332 is fixedly connected to the ink return blade connecting plate 3314. The ink returning blade screw 3312 is disposed vertically, and one end of the ink returning blade screw 3312 is fixedly connected to a motor shaft of the ink returning blade driving motor 3311, and the other end of the ink returning blade screw 3312 is screwed into the ink returning blade nut 312. The ink returning blade driving motor 3311 rotates to drive the ink returning blade screw 3312 to rotate, and the ink returning blade connecting plate 3314 converts the rotary motion of the rotating ink returning blade screw 3312 into a linear motion to drive the ink returning blade guide rod 332 fixedly connected thereto to reciprocate in the vertical direction, thereby driving the ink returning blade 35 to descend or ascend.

Similarly, in order to control the descending height of the ink recovery blade 35, the ink recovery blade elevation driving unit 331 provided in this embodiment further includes: and the ink returning blade height detection unit is electrically connected with the ink returning blade driving motor 3311 and is used for controlling the ink returning blade driving motor 3311 to stop working after the ink returning blade guide rod 332 descends to a certain height along the vertical direction.

Specifically, the ink return blade height detection unit includes: a return blade sensor 3315, a return blade sensor 3316, and a return blade sensor mount 3317. The length direction of the ink return blade sensing blade 3315 is at least the vertical direction. The ink return blade sensing piece 3315 is mounted on the ink return blade connecting plate 3314, the ink return blade sensor 3316 is fixed on the scraper module fixing plate 31, specifically, the ink return blade sensor mounting bracket 3317 is fixed on the scraper module fixing plate 31, and the ink return blade sensor 3316 is fixed on the scraper module fixing plate 31 through the ink return blade sensor mounting bracket 3317. The distance between the bottom end of the ink return blade sensing blade 3315 and the ink return blade sensor 3316 is the height at which the ink return blade 35 descends. The ink return blade sensor 3316 is electrically connected to the ink return blade driving motor 3311, and when the ink return blade lifting/lowering driving unit 331 drives the ink return blade to descend and the ink return blade sensor 3316 senses the ink return blade sensing blade 3315, the ink return blade sensor 3316 controls the ink return blade driving motor 3311 to stop working, so as to control the height of the ink return blade 35 to descend.

In an embodiment, the ink return blade sensing blade 3315 is detachably mounted on the ink return blade connecting plate 3314, and specifically, the ink return blade connecting plate 3314 is provided with an ink return blade sensing blade passing hole for the ink return blade sensing blade 3315 to pass through, the ink return blade sensing blade 3315 is fixed in the ink return blade sensing blade passing hole by a fastener (e.g., a jackscrew), and when the distance between the ink return blade sensing blade 3315 and the ink return blade sensor 3316 needs to be adjusted, the fastener can be loosened to adjust the distance.

In the above embodiments, the doctor blade driving motor 3211 and the return blade driving motor 3311 are both stepping motors, and are controlled by a digital program control system, so that the reaction is sensitive and the reliability is high under the error of the output torque.

In addition, the doctor blade sensing blade 3215 and the ink return blade sensing blade 3315 are respectively provided with a scale along the length direction, so as to facilitate adjustment of the doctor blade sensing blade 3215 and the ink return blade sensing blade 3315. As shown in fig. 16, a schematic view of only one doctor blade sensor blade 3215 is shown.

In this application, the scraping printing device still includes doctor blade angle adjusting device 36, and this doctor blade angle adjusting device 36 drives the lifter plate through lifter plate actuating mechanism and is reciprocating up and down in predetermineeing the height scope to drive the doctor blade mount pad around doctor blade length direction's straight line and in predetermineeing the reciprocal rotation of angle within range, realize the automatically regulated to the doctor blade angle, convenient to use, and it is high to adjust the precision.

In this embodiment, the doctor blade is used to scrape the screen 4 of the screen printing machine, and the doctor blade 34 is in contact with the screen 4 of the screen printing machine during scraping, and is away from the screen 4 of the screen printing machine during returning ink. The doctor blade guide rod is a mechanism for driving the doctor blade to ascend or descend. The doctor blade angle adjusting device adjusts the angle of the doctor blade relative to the screen 4 of the screen printing machine, so that the pressure of the doctor blade on the screen 4 of the screen printing machine is controlled, and different screen 4 or ink can be scraped.

Referring to fig. 16 to 19, the present embodiment also provides that the doctor angle adjusting device 36 of the screen printing machine 200 includes: a doctor blade mount 341, a holder, a lift plate 361, and a lift plate drive mechanism 362.

The doctor blade mount 341 is used to fixedly mount the doctor blade 34. Specifically, the doctor blade mounting base 341 is a rectangular parallelepiped, and a doctor blade mounting groove having a downward opening is formed in the length direction of the doctor blade mounting base 341, and the doctor blade 34 is clamped by the two doctor blade clamping plates 342, and the two doctor blade clamping plates 342 are fixed in the doctor blade mounting groove, so that the doctor blade 34 is fixedly mounted on the doctor blade mounting base 341.

The top of the holder is fixedly mounted on the doctor guide 322 of the printer, the doctor mount 341 is mounted at the bottom of the holder, and the doctor mount 341 can swing linearly in the longitudinal direction of the doctor.

In some embodiments, the doctor blade mount 341 may be pivotally mounted on the doctor blade guide 322 at its long side, for example, the doctor blade mount 341 may be hingedly connected to the doctor blade guide 322. More specifically, a rotary shaft 363 is installed on the doctor blade guide 322, an axis of the rotary shaft 363 is substantially parallel to a longitudinal direction of the doctor blade, and the rotary shaft 363 is rotatably installed on the doctor blade guide 322 such that the rotary shaft 363 can rotate around a straight line on its own axis.

Specifically, the mount includes: a fixing plate 364, and two engaging lugs 365. Specifically, the fixing plate 364 is fixed on the doctor blade guide bar 322 and located above the lifting plate 361, the two engaging lugs 365 are respectively fixed at two ends of the fixing plate 364 along the axial line direction of the rotating shaft 363, and the rotating shaft 363 is rotatably mounted between the two engaging lugs 365, so that the manner that the rotating shaft 363 is rotatably mounted on the doctor blade guide bar 322 is realized. The doctor blade mount 20 described above is fixed to the rotary shaft 363.

In this embodiment, the connection mode that the rotating shaft 363 is rotatably installed between the two engaging lugs 365 can be realized by arranging bearings on the two engaging lugs 365. Of course, in other embodiments, other connection methods or other components may be used to achieve the rotational connection.

The lifting plate 361 is hinged to the body of the doctor blade mount 341. Specifically, install first connecting seat 366 on the seat body of doctor blade mount pad 341 towards lifter plate 361 one side, install second connecting seat 367 on lifter plate 361 towards one side of doctor blade mount pad 341, the pinhole of basically perpendicular to doctor blade guide arm 322 is all seted up to first connecting seat 366 and second connecting seat 367, two connecting seats realize articulated the connection through the pinhole with two connecting seats of coaxial insertion of round pin axle 368, promptly, realize the articulated connected mode between the seat body of lifter plate 361 and doctor blade mount pad 341.

The lifting plate driving mechanism 362 is used for driving the lifting plate 361 to reciprocate within a preset height range, so that the lifting plate 361 which reciprocates and lifts drives the doctor blade mounting seat 341 to reciprocate within a preset angle range around a straight line which is basically vertical to the axial lead of the doctor blade guide rod 322 in a hinged connection mode, and the automatic adjustment of the angle of the doctor blade 34 is realized.

As shown in fig. 19, the lifter plate drive mechanism 362 in the present embodiment includes: a lifter plate drive motor 3631, a lifter plate screw 3632, a lifter plate screw nut 3633, at least one lifter plate guide rod 3634, and at least one lifter plate linear bearing 3635. The lift plate drive motor 3631 is fixed to the fixed plate 364. As a preselected embodiment, the motor shaft of the lift plate drive motor 3631 is oriented perpendicular to the lift plate 361. More preferably, the motor shaft of the lift plate driving motor 3631 is fixed to the fixing plate 364 in a downward direction such that the axial line of the motor shaft of the lift plate driving motor 3631 is perpendicular to both the fixing plate 364 and the lift plate 361. The lifter plate screw nut 3633 is fixed to the lifter plate 361, one end of the lifter plate screw 3632 is fixed to a motor shaft of the lifter plate driving motor 3631, and the other end of the lifter plate screw 3632 is screwed into the lifter plate screw nut 3633. One end of the lift plate guide rod 3634 is fixed to the fixing plate 364, and the other end of the lift plate guide rod 3634 slidably penetrates the lift plate 361. Specifically, the positions and the numbers of the lifting plate guide rods 3634 and the lifting plate linear bearings 3635 are in one-to-one correspondence, the lifting plate linear bearings 3635 are installed on the lifting plate 361, and the other ends of the lifting plate guide rods 3634 slidably penetrate through the lifting plate linear bearings 3635.

The lifting plate driving motor 3631 outputs torque to drive the lifting plate screw 3632 to rotate, the lifting plate screw nut 3633 converts the rotation motion of the lifting plate screw 3632 into linear motion, so as to drive the lifting plate 361 to ascend or descend, and the ascending or descending lifting plate 361 drives the doctor blade mounting base 341 to rotate back and forth in a preset angle range around a straight line which is basically perpendicular to the axial lead of the doctor blade guide rod 322 in a hinged connection mode, that is, the angle of the doctor blade 34 is adjusted.

To achieve precise adjustment of the angle of the scraper, the lifter plate driving mechanism 362 further includes: a doctor blade angle sensing blade 3636, a doctor blade angle sensor 3637, and a doctor blade angle sensing blade 3636 fixed to the rotary shaft 363 such that the doctor blade angle sensing blade 3636 can move synchronously with the rotation of the rotary shaft 363. The doctor blade angle sensor 3637 is electrically connected to the lifter plate drive motor 3631. As shown in fig. 17, the doctor blade angle sensing blade 3636 has a sensing area 36361 and a non-sensing area 36362, and the sensing area 36361 and the non-sensing area 36362 are switched with each other when the rotary shaft 363 rotates. When the doctor blade angle sensor 3637 senses the sensing area 36361, the lift plate driving motor 3631 is controlled to stop.

In this embodiment, at least one end of the rotary shaft 363 leaks out after passing through the engaging lug 365, the doctor blade angle sensing blade 3636 is fixed at the leaking end of the rotary shaft 363, and the doctor blade angle sensor 3637 is fixed on the engaging lug 365 of the corresponding section through the sensor fixing seat 371.

Specifically, the doctor blade angle sensing piece 36361 is a circular doctor blade angle sensing piece, a sector notch is formed in the circular doctor blade angle sensing piece, the sector notch forms the aforementioned non-sensing area 36362, a sensing area 36361 is formed by a portion excluding the sector notch, and an included angle between two side edges of the sector notch along the circumferential direction of the circular doctor blade angle sensing piece is a preset angle for adjusting the doctor blade 34.

In this embodiment, the doctor blade angle sensor 3637 is specifically a photoelectric sensor, and the sensing area 36361 and the non-sensing area 36362, which are switched along with the synchronous movement of the rotary shaft 363, block infrared light emitted by the photoelectric sensor to realize sensing control. As shown in fig. 17, sensing area 36361 is shown blocking infrared light from the photosensor, at which time doctor blade angle sensor 3637 controls lifter plate drive motor 3631 to stop operating. When the doctor blade angle sensing blade 3636 rotates counterclockwise, the infrared light emitted from the doctor blade angle sensor 3637 passes through the non-sensing area 36362 formed as a fan-shaped notch, so that the infrared light is not blocked, and the lift plate driving motor 3631 is controlled to continue to operate until the sensing area 36361 of the doctor blade angle sensing blade 3636 rotating counterclockwise blocks the infrared light, that is, the lift plate driving motor 3631 is controlled to stop operating. Then, the lifting plate driving motor 3631 reversely outputs torque, and drives the doctor blade angle sensing blade 3636 to rotate clockwise through the rotating shaft 363 until the operation is stopped again, and the operation is repeated, so that the angle of the doctor blade 34 is adjusted.

When doctor blade angle sensor 3637 senses two sides of doctor blade angle sensing piece 3636 non-induction area 36362, lifter plate driving motor 3631 reciprocates and drives lifter plate 361 to go up and down, the height that should reciprocate goes up and down is the preset height that lifter plate 361 reciprocates, the contained angle between this preset height and non-induction area 36362 both sides limit becomes direct proportional relation, that is, the contained angle is bigger, then preset height is higher, and then the angle that doctor blade 34 adjusted is also bigger, set for the contained angle size between the non-induction area 36362 both sides limit according to actual production's needs, in order to satisfy different production's needs.

In this embodiment, 4 detachable of screen printing machine screen version are installed on screen printing machine rack 6, fix screen printing machine screen version 4 in screen printing machine rack 6 for being convenient for, and the screen printing machine that this application provided still includes: a screen positioning device 7 for positioning a screen 4 of a screen printing machine on a screen frame 6 of the screen printing machine.

Referring to fig. 20 to 22, the present screen positioning apparatus 7 for a printing press includes: a rest portion 71, a fixed portion 72, a movable portion 73, and an urging portion 74.

The positioning portion 71 is provided on the screen 4 of the screen printing machine, and specifically, the positioning portion 71 is fixed to the side of the screen 4 of the screen printing machine by fastening screws. The positioning portion 71 protrudes outside the screen 4 of the screen printing machine, i.e. the positioning portion 71 provided on the screen 4 of the screen printing machine extends outside the screen 4 of the screen printing machine.

And the fixing part 72, the fixing part 72 is fixed on the screen 4 or the screen frame 6 of the screen printing machine, the screen frame 6 of the screen printing machine is a bearing structure of the screen 4 of the screen printing machine, and the screen 4 of the screen printing machine is usually placed in the screen frame 6 of the screen printing machine. The fixing portion 72 fixed to the screen 4 or the net mount 6 of the screen printing machine is located on one side of the positioning portion 71 and abuts against the positioning portion 71.

And a movable portion 73, wherein the movable portion 73 is positioned on the other side of the positioning portion 71. The movable portion 73 has a first end 731 and a second end 732 located away from the first end 731, and the first end 731 is used for movably mounting the movable portion 73 on the screen 4 or the net mount 6 of the screen printing machine, so that the second end 732 can rotate around the first end 731.

In some embodiments, the first end 731 of the movable portion 73 is provided with a mounting hole, and the screen 4 or the screen frame 6 of the screen printing machine is provided with a mounting shaft suitable for the mounting hole, and the mounting shaft is inserted into the mounting hole, so as to form a movable connection manner, that is, the second end 732 can rotate around the first end 731.

And an urging part 74, wherein the urging part 74 is used for applying a pulling force to the second end 732 so as to pull the second end 732 of the movable part 73 to rotate around the first end 731, so that the movable part 73 can abut against the other side of the positioning part 71. In this way, the fixed portion 72 abutting on one side of the positioning portion 71 and the movable portion 73 abutting on the other side of the positioning portion 71 are configured to clamp the positioning portion 71. The movable portion 73 can not only apply an acting force to the positioning portion from both sides of the positioning portion 71 with the fixed portion 72, but also the inclined movable portion 73 can apply an acting force to the positioning portion 71 in the vertical direction to clamp the positioning portion 71, so as to ensure the vertical and horizontal pressing of the positioning portion, so as to firmly fix the screen 4 of the screen printing machine in the screen frame 6 of the screen printing machine, i.e., to position the screen 4 of the screen printing machine in the screen frame 6 of the screen printing machine.

In this embodiment, the force application portion 74 specifically includes an elastic member, one end of the elastic member is fixed to the second end 732 of the movable portion 73, and the other end of the elastic member is fixed to the screen 4 or the screen frame 6 of the screen printing machine. The elastic member stores elastic potential energy when in a stretched state, thereby providing tension to the second end 732 of the movable portion 73.

In some embodiments, in order to facilitate the installation of the elastic member, hooks are provided at one end and the other end of the elastic member, and the positioning device for the screen of the printing machine provided by the present application further includes: and two hook portions 75, one of the hook portions 75 being provided at the second end 732 of the movable portion 73, the other of the hook portions 75 being provided at the screen 4 or the screen frame 6 of the screen printing machine, the hook at one end of the elastic member being hooked at the hook portion 75 at the second end 732 of the movable portion 73, and the hook at the other end of the elastic member being hooked at the hook portion of the screen 4 or the screen frame 6 of the screen printing machine. And the hook mode is adopted, so that the assembly and the disassembly are convenient.

In the above embodiment, the elastic member is specifically a tension spring, and the hooks at the two ends of the elastic member are hooks at the two ends of the tension spring.

As shown in fig. 22, the positioning portion 71 provided in the present application is specifically a sheet-like structure. The positioning portion 71 of the sheet structure includes: a fixing plate 711 and a protruding plate 712, the fixing plate 711 is fixed on the side of the screen 4 of the screen printer by a fastening screw 713, the protruding plate 712 is fixed on the fixing plate 711, and the fixing plate 711 and the protruding plate 712 are formed in one of a T-shape, a Y-shape, or an L-shape. In other embodiments, the fixing plate 711 and the protruding plate 712 may also be a unitary structure. The projecting tab 712 projects to the outside of the screen 4, the fixed portion 72 abutting one side of the projecting tab 712, and the movable portion 73 abutting the other side of the projecting tab 712, thereby positioning the screen 4 in the screen frame 6 of the screen printing machine.

As shown in fig. 20, in this embodiment, the screen 4 of the screen printing machine generally comprises a screen frame 41 and a screen 42, the screen 42 being secured to the screen frame 41 to form the screen 4 of the screen printing machine. The positioning portion 71 is fixed to the screen frame 41 of the printing machine.

Referring to fig. 2, 3, 9 and 13, a trolley line 7 is further disposed on the traveling rail 101, and a current collector 71 is further disposed on the screen printing machine 200, and the current collector 71 is configured to slide along the trolley line 7 to pick up electric energy to supply power to electric devices of each apparatus. The current collector 71 is located on the screen printer frame 5, and the trolley line 7 is located below the running rail 101.

In summary, the printing apparatus provided in this embodiment prints on the printing material on the platen by using the printing method of the walking-stage type decorating machine. The difference is that in the printing equipment, two sides of the bedplate are respectively provided with two walking tracks parallel to the length direction of the bedplate, and the bedplate is used for bearing printing stocks. The two printers can respectively walk along the two walking tracks, and the walking directions are the same or opposite. The two printers can print the printing stock loaded on the bedplate simultaneously, so that the printing efficiency is obviously improved.

The foregoing is a more detailed description of the present application in connection with specific embodiments thereof, and it is not intended that the present application be limited to the specific embodiments thereof. It will be apparent to those skilled in the art from this disclosure that many more simple derivations or substitutions can be made without departing from the inventive concepts herein.

Claims

1. A printing apparatus, comprising:

2. The printing apparatus of claim 1, wherein the walking device comprises: walking actuating mechanism and walking stop gear, walking actuating mechanism includes: the driving travelling wheels and at least two driven travelling wheels with mutually parallel axes, and driving travelling wheel driving motors; the driving travelling wheel driving motor is fixed on the printer frame, and the driving travelling wheel is fixed on a motor shaft of the driving travelling wheel driving motor; the at least two driven travelling wheels are rotatably arranged on the printer frame; the driving travelling wheel driving motor is positioned on one side of the printer frame, and the at least two driven travelling wheels are positioned on the opposite side of one side of the printer frame and/or positioned on the two adjacent sides of one side of the printer frame; the walking limiting mechanism comprises: the two walking limit tracks are respectively arranged on the two walking tracks, and the length direction of the walking limit tracks is vertical to the axis; the at least two walking limiting assemblies are mounted on the printer frame and used for positioning the printer frame along the length direction of the walking limiting rails.

3. The printing apparatus of claim 2, wherein the travel limit assembly comprises: two limiting wheels, a limiting wheel fixing plate and a pushing unit; the top surface of the limiting wheel fixing plate is fixed on a printer frame, and the two limiting wheels are fixed on the bottom surface of the limiting wheel fixing plate; the distance between the two limiting wheels is suitable for the width of the walking limiting track, and the two limiting wheels are used for being clamped on the walking limiting track so as to keep the printer frame to be positioned along the length direction of the walking limiting track; the pushing unit is used for pushing one limiting wheel to move towards the other limiting wheel so as to enable the two limiting wheels to tightly clamp the walking limiting track.

4. The printing apparatus of claim 1, wherein the overall positioning device comprises: the net rack lifting mechanism, the positioning column and the positioning sleeve are arranged on the frame; the rack elevating system includes: the net rack lifting screw rod is arranged along the vertical direction, one end of the net rack lifting screw rod is screwed on a net rack of the printing machine, and the other end of the net rack lifting screw rod is fixedly connected with a motor shaft of the net rack lifting drive motor; one end of the positioning column is arranged on the net rack of the printing machine, and the other end of the positioning column downwards protrudes to the lower part of the net rack of the printing machine; the positioning sleeve is arranged on the walking track and is provided with a positioning hole suitable for the positioning column; the scraping and printing device is fixed on the net rack of the printing machine.

5. Printing apparatus according to claim 4, wherein the scraping means comprises: the scraper module and the scraper module translation actuating mechanism of setting on printing machine rack, scraper module translation actuating mechanism is used for the drive the scraper module removes, in order to scrape the china ink from the one end of printing machine half tone to the other end, perhaps, the drive the scraper module removes, in order to return black from the other end of printing machine half tone to one end.

6. The printing apparatus of claim 5, wherein said doctor module translation drive mechanism comprises: the device comprises a translation driving motor arranged at one end of a screen printing plate of the printing machine, a driving wheel arranged on a motor shaft of the translation driving motor, a driven wheel arranged at the other end of the screen printing plate of the printing machine, and a conveying belt sleeved on the driving wheel and the driven wheel; the scraper module fixing plate is also provided with a scraper module connecting piece which is fixed on the conveying belt; the scraper module is arranged on the scraper module fixing plate.

7. The printing apparatus of claim 5, wherein said scraping means further comprises: a elevating gear for driving scraper module goes up and down, elevating gear includes: doctor blade elevating system and ink return blade elevating system, doctor blade elevating system includes: the ink scraping blade lifting driving unit comprises an ink scraping blade lifting driving unit and an ink scraping blade guide rod, wherein the ink scraping blade guide rod is arranged on a scraper module fixing plate in a penetrating mode in a sliding mode along the vertical direction, and the ink scraping blade is connected to the bottom end of the ink scraping blade guide rod; the output end of the doctor blade lifting driving unit is fixedly connected with the top end of the doctor blade guide rod so as to drive the doctor blade guide rod to ascend or descend along the vertical direction; the ink return blade lifting mechanism comprises: the ink return knife comprises an ink return knife lifting driving unit and an ink return knife guide rod, wherein the ink return knife guide rod is arranged on a scraper module fixing plate in a penetrating mode in a sliding mode along the vertical direction, and the ink return knife is connected to the bottom end of the ink return knife guide rod; the output end of the ink returning blade lifting driving unit is fixedly connected with the top end of the ink returning blade guide rod so as to drive the ink returning blade guide rod to descend or ascend along the vertical direction.

8. The printing apparatus of claim 6, wherein said scraping means further comprises: a doctor blade angle adjustment device for adjusting a doctor blade angle, the doctor blade angle adjustment device comprising: the ink scraping blade device comprises a scraping blade mounting seat, a fixing frame, a lifting plate and a lifting plate driving mechanism, wherein the scraping blade mounting seat is used for mounting a scraping blade; the top of the fixing frame is fixed on a doctor blade guide rod of the printing machine, and the doctor blade mounting seat is mounted at the bottom of the fixing frame and can swing around the length direction of the doctor blade; the lifting plate is hinged with the seat body of the doctor blade mounting seat; the lifting plate driving mechanism is used for driving the lifting plate to lift within a preset height range so as to drive the doctor blade mounting seat to swing within a preset angle range around the length direction of the doctor blade.

9. The printing apparatus of claim 4, wherein said printer screen is removably mounted to a printer frame, said printer further comprising: a printing machine screen positioner for inciting somebody to action printing machine screen location on printing machine rack, printing machine screen positioner includes: a leaning part, a fixed part, a movable part and a force application part; the leaning part is arranged on the screen printing plate of the printing machine and protrudes out of the screen printing plate of the printing machine; the fixing part is positioned at one side of the leaning part and leans against the leaning part; the fixed part is fixed on a screen printing plate of the printing machine or a net rack of the printing machine; the movable part is positioned at the other side of the leaning part; the movable part is provided with a first end and a second end, and the first end is used for movably mounting the movable part on a screen printing plate or a net rack of a printing machine so that the second end can rotate around the first end; the force application part is used for applying pulling force to the second end so as to enable the movable part to abut against the other side of the leaning part.

10. The printing apparatus of claim 1, wherein the travel track is further provided with a trolley line, and the printing machine is further provided with a current collector for sliding along the trolley line to pick up electric energy.