CN110843326A - Multi-station printing equipment - Google Patents
Multi-station printing equipment Download PDFInfo
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- CN110843326A CN110843326A CN201911327516.6A CN201911327516A CN110843326A CN 110843326 A CN110843326 A CN 110843326A CN 201911327516 A CN201911327516 A CN 201911327516A CN 110843326 A CN110843326 A CN 110843326A
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- 238000007639 printing Methods 0.000 title claims abstract description 216
- 238000007790 scraping Methods 0.000 claims abstract description 133
- 230000007246 mechanism Effects 0.000 claims abstract description 92
- 238000007650 screen-printing Methods 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 230000006698 induction Effects 0.000 claims description 5
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 230000000007 visual effect Effects 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 description 14
- 238000001459 lithography Methods 0.000 description 13
- 238000011084 recovery Methods 0.000 description 10
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000003595 mist Substances 0.000 description 4
- 230000003028 elevating effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/08—Machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/34—Screens, Frames; Holders therefor
- B41F15/36—Screens, Frames; Holders therefor flat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/44—Squeegees or doctors
- B41F15/46—Squeegees or doctors with two or more operative parts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Screen Printers (AREA)
Abstract
The invention discloses a multi-station printing device, which comprises: the two sides of the bedplate in the width direction are provided with a walking track; a printing press, comprising: the printing device comprises a rack, a net rack arranged on the rack, a walking driving device, a walking positioning device and a scraping and printing device fixed on the net rack; the screen printing device is used for printing a printing stock arranged on the bedplate at the preset position through the screen printing plates; in the squeegee apparatus, a squeegee movement driving mechanism drives a squeegee mechanism to move from one end of a screen plate to the other end in the longitudinal direction of a platen to squeegee ink or to move in the reverse direction to return ink. The printing equipment adopts a walking type bedplate printing mode, and prints the printing stock on the bedplate by using at least two scraping and printing mechanisms, so that the printing efficiency can be improved, and the printing breadth with different sizes can be compatible in the maximum printing range.
Description
Technical Field
The application relates to the technical field of printing equipment, in particular to multi-station printing equipment.
Background
The walking type platen printing machine is equipment for printing on a traditional manual screen printing platen through automatic walking, the printing area of the walking type platen printing machine depends on the width of the platen, when the width of a printing stock to be printed is smaller than the width of the platen, and the plate surface of the platen is wider, two or more printing stocks need to be laid in the width direction of the platen for printing, the existing printing machine can only print on one printing stock at a time, one scraping action can only realize the printing of one printing stock at a time, and the printing efficiency is seriously influenced.
Disclosure of Invention
The application aims at providing a multistation lithography apparatus to improve printing efficiency.
The application provides a multistation lithography apparatus, includes:
the two sides of the bedplate in the width direction are provided with a walking track;
a printing press, comprising: the printing device comprises a rack, a net rack arranged on the rack, a walking driving device, a walking positioning device and a scraping and printing device fixed on the net rack; the net rack is used for detachably mounting at least two screen printing plates which are arranged side by side, the walking driving device is used for driving the rack to walk along a walking track, the walking positioning device is used for positioning the walking rack at a preset position, and the scraping printing device is used for printing a printing stock arranged on the bedplate at the preset position through the screen printing plates; the scraping and printing device comprises: the scraping and printing moving driving mechanism and the at least two scraping and printing mechanisms are positioned above the net rack; the at least two scraping and printing mechanisms are respectively positioned above the at least two screen printing plates; the scraping and printing movement driving mechanism is used for driving the at least two scraping and printing mechanisms to simultaneously move from one end of the screen printing plate to the other end along the length direction of the bedplate so as to scrape ink, or move from the other end of the screen printing plate to one end so as to return ink.
Further, the multistation lithography apparatus, wherein, walking positioner includes: the positioning driving cylinder is arranged on the rack along the vertical direction, the positioning column is arranged at the piston rod end of the positioning driving cylinder, and the positioning sleeves are arranged on the walking track; the positioning sleeve is provided with a positioning hole suitable for the positioning column; the positioning driving cylinder is used for driving the positioning column to descend along the vertical direction so as to enable the positioning column to be inserted into the positioning hole of the positioning sleeve, or driving the positioning column to ascend along the vertical direction so as to enable the positioning column to be separated from the positioning hole of the positioning sleeve.
Further, the multistation lithography apparatus, wherein, the walking drive device includes: the device comprises a driving travelling wheel and at least two driven travelling wheels, wherein the axes of the driving travelling wheel and the driven travelling wheel are parallel to each other; the driving travelling wheel driving motor is fixed on the rack, 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 frame; the driving walking wheel driving motor is positioned on one side of the rack, and the at least two driven walking wheels are positioned on the opposite side of one side of the rack and/or positioned on the two adjacent sides of one side of the rack; the positioning sensor is arranged on the positioning column, the positioning induction pieces are respectively arranged on the positioning sleeves, and the positioning sensor is electrically connected with the driving travelling wheel driving motor and used for controlling the driving travelling wheel driving motor to stop rotating when the positioning induction pieces are induced.
Further, the multistation lithography apparatus, wherein, the walking drive device still includes: the walking device comprises at least one walking limiting track and at least two walking limiting components; the walking limiting track is arranged on the walking track, and the length direction of the walking limiting track is the same as that of the walking track; the at least two walking limiting assemblies are arranged on one side of the rack and are used for positioning the rack along the width direction of the walking track; the walking limiting assembly comprises: two limiting wheels and a limiting wheel fixing plate; the top surface of the limiting wheel fixing plate is fixed on the rack, and the two limiting wheels are fixed on the bottom surface of the limiting wheel fixing plate; the spacing 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 to keep the rack to be positioned along the length direction of the walking limiting track.
Further, the multistation lithography apparatus, wherein, still include: the two net rack lifting driving mechanisms are respectively arranged on two side edges of the rack along the length direction of the bedplate, and the scraping and printing moving driving mechanism and the scraping and printing mechanism are arranged between the two net rack lifting driving mechanisms; net rack lift actuating mechanism includes: the rack lifting mechanism comprises a fixed frame fixed on a rack, a rack lifting driving motor fixed at the top end of the fixed frame, a rack lifting screw rod arranged in the vertical direction, a rack lifting screw nut screwed on the rack lifting screw rod, and a rack connecting plate fixed on the rack lifting screw nut; the motor shaft of the net rack lifting driving motor is arranged downwards, the top end of the net rack lifting lead screw is fixed on the motor shaft of the net rack lifting driving motor, and the bottom end of the net rack lifting lead screw is rotatably arranged at the bottom end of the fixed frame; and the two ends of the net rack along the length direction of the bedplate are respectively fixed on net rack connecting plates of the two net rack lifting driving mechanisms.
Further, the multi-station printing apparatus, wherein the squeegee movement driving mechanism includes: the scraping and printing device comprises a scraping and printing movement driving motor, a scraping and printing movement driving wheel, a scraping and printing movement driving driven wheel, a scraping and printing movement driving conveying belt, at least one scraping and printing movement driving sliding rail, a scraping and printing movement driving sliding block and a scraping and printing movement fixing beam, wherein the scraping and printing movement driving motor is installed on a net rack connecting plate of one net rack lifting driving mechanism; the at least two scraping mechanisms are fixed on the scraping movable fixed beam, and the scraping movable fixed beam is arranged along the width direction of the bedplate; the scraping and printing movable fixed beam is fixed on the scraping and printing movable driving conveyor belt.
Further, the multistation lithography apparatus, wherein, the scraping printing mechanism includes: the ink scraping device comprises a scraping knife module fixing plate, at least two scraping knife guide rods, at least two ink returning knife guide rods, a scraping knife lifting driving unit, an ink returning knife lifting driving unit, scraping knives and ink returning knives, wherein the scraping knife module fixing plate is arranged on the scraping and printing moving fixing beam, the scraping knife guide rods and the ink returning knife guide rods are arranged in the scraping knife module fixing plate in a penetrating mode in a sliding mode along the vertical direction, the scraping knife lifting driving unit is used for driving the scraping knife guide rods to ascend or descend along the vertical direction, the ink returning knife lifting driving unit is used for driving the ink returning knife guide rods to ascend or descend along the vertical direction, the scraping knives are arranged at the bottom; when the scraping and printing movement driving mechanism drives the at least two scraping and printing mechanisms to simultaneously move from one end of the screen printing plate to the other end of the screen printing plate along the length direction of the bedplate, the doctor blade lifting driving unit drives the at least two doctor blade guide rods to descend, and the ink return blade lifting driving unit drives the at least two ink return blade guide rods to ascend; when the scraping and printing movement driving mechanism drives the at least two scraping and printing mechanisms to simultaneously move from the other end to one end of the screen printing plate along the length direction of the bedplate, the doctor blade lifting driving unit drives the at least two doctor blade guide rods to ascend, and the ink return blade lifting driving unit drives the at least two ink return blade guide rods to descend.
Further, the multi-station printing apparatus, wherein the doctor blade elevation driving unit includes: the doctor blade driving cylinder and the doctor blade connecting plate; the doctor blade connecting plate is connected to the top end of the doctor blade guide rod, the doctor blade driving cylinder is fixed on the doctor blade module fixing plate, and a piston rod of the doctor blade driving cylinder faces the upper part of the doctor blade module fixing plate and is fixedly connected with the doctor blade connecting plate; the ink return blade lifting driving mechanism comprises: the ink return knife drives the cylinder and the ink return knife connecting plate; the ink return knife connecting plate is connected to the top end of the ink return knife guide rod, the ink return knife driving cylinder is fixed on the scraper module fixing plate, and a piston rod of the ink return knife driving cylinder faces the upper portion of the scraper module fixing plate and is fixedly connected with the ink return knife connecting plate.
Further, the multistation lithography apparatus, wherein, the walking drive device still includes: the anti-collision system comprises a plurality of anti-collision sensors arranged on two opposite side edges of the rack along the length direction of the bedplate, the anti-collision sensors are electrically connected with the driving travelling wheel driving motor and are used for controlling the driving travelling wheel driving motor to stop working when sensing an object.
Further, the multistation lithography apparatus, wherein, still include: a humidification device for humidifying ink or a substrate, the humidification device comprising: the humidifier comprises a plurality of nozzles arranged on the rack, a humidifier communicated with the nozzles, and a water tank communicated with the humidifier; the water tank is provided with a visual window, and the visual window is used for observing the water level in the water tank.
The invention has the beneficial effects that:
the application provides a multistation lithography apparatus includes: the two sides of the bedplate in the width direction are provided with a walking track; a printing press, comprising: the printing device comprises a rack, a net rack arranged on the rack, a walking driving device, a walking positioning device and a scraping and printing device fixed on the net rack; the net rack is used for detachably mounting at least two screen printing plates which are arranged side by side, the walking driving device is used for driving the rack to walk along a walking track, the walking positioning device is used for positioning the walking rack at a preset position, and the scraping printing device is used for printing a printing stock arranged on the bedplate at the preset position through the screen printing plates; the scraping and printing device comprises: the scraping and printing moving driving mechanism and the at least two scraping and printing mechanisms are positioned above the net rack; the at least two scraping and printing mechanisms are respectively positioned above the at least two screen printing plates; the scraping and printing movement driving mechanism is used for driving the at least two scraping and printing mechanisms to simultaneously move from one end of the screen printing plate to the other end along the length direction of the bedplate so as to scrape ink, or move from the other end of the screen printing plate to one end so as to return ink. The printing equipment adopts a walking type platen printing mode, and prints the printing stock on the platen by using at least two scraping printing mechanisms, so that the printing efficiency can be improved, and the use requirement of small-format printing can be met.
Drawings
FIG. 1 is an isometric view of a multi-station printing apparatus provided herein;
FIG. 2 is a schematic view of the mating of a frame and a platen as provided herein;
FIG. 3 is a schematic view of a walking positioning device provided herein;
fig. 4 is a schematic view of a cooperation relationship between a travel limit assembly and a travel limit track in the travel driving mechanism provided in the present application;
FIG. 5 is a schematic structural view of a walking limit assembly provided herein;
fig. 6 is a schematic structural diagram of a rack lifting driving mechanism provided by the present application;
FIG. 7 is a schematic view of a portion of a multi-station printing apparatus according to the present application;
FIG. 8 is a schematic structural view of a squeegee mechanism provided herein;
fig. 9 is a schematic view illustrating an installation position of a collision avoidance system in the multi-station printing apparatus provided by the present application;
FIG. 10 is a schematic view of the installation position of a water tank in the multi-station printing apparatus provided by the present application;
fig. 11 is a schematic partial structural view of a humidifying device in the multi-station printing apparatus provided by the present application;
fig. 12 is a schematic view of an electrical component mounting position in the multi-station printing apparatus provided by 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 multistation lithography apparatus adopts walking platen printing mode to print the stock on the platen, is different from printing mode in the past, and this multistation lithography apparatus's scraping device removes the length direction along the platen and prints the stock to, scraping device includes at least two scraping printing mechanisms that are used for scraping seal or ink recovery, so, not only can improve printing efficiency, still can be at the printing breadth of the compatible equidimension of biggest printing within range, satisfy different printing demands.
Referring to fig. 1-12, the present application provides a multi-station printing apparatus comprising: a platen 100 and a printer 200.
The platen 100 is used for bearing a printing stock to be printed, two side edges of the platen 100 in the width direction are respectively provided with a traveling track 101, the length direction of the traveling tracks 101 on the two side edges is the length direction of the platen 100, namely the traveling tracks 101 are the same as the platen 100 in length, and the printing stock borne on the platen 100 is parallel to the traveling tracks 101.
The printer 200 is used to print, in particular by screen printing, a substrate carried on the platen 100. The printing press 200 in the present application mainly includes: the printing machine comprises a frame 21, a net rack 22, a traveling driving device 23, a traveling positioning device 24 and a scraping device 25, wherein the net rack 22, the traveling driving device 23 and the traveling positioning device 24 are all arranged on the frame 21, the net rack 22 is used for detachably mounting at least two screen printing plates 26 (shown in figure 7) which are arranged side by side, the screen printing plates 26 are printing plates with meshes of image-text parts formed, the scraping device 25 is fixed on the net rack 22, and the scraping device 25 is used for printing by extruding ink from the image-text parts of the screen printing plates 26 to printing stocks arranged on a table plate 100 at preset positions. The travel driving device 23 is configured to drive the frame 21 (printing machine) to travel along the length direction of the travel rail 101, and the travel positioning device 24 is configured to position the traveling frame 21 (printing machine) at a preset position, so that the squeegee device 25 prints on the printing material loaded on the platen 100 at the preset position.
In this embodiment, as shown in fig. 3, the walking positioning device 24 includes: a positioning driving cylinder 241, a positioning column 242 and a plurality of positioning sleeves 243, wherein the positioning driving cylinder 241 is installed on the frame 21 along the vertical direction, that is, the piston rod of the positioning driving cylinder 241 is arranged along the vertical direction, the positioning column 242 is installed at the piston rod end of the positioning driving cylinder 241, that is, one end of the positioning column 242 is installed at the piston rod end of the positioning driving cylinder 241, and the vertical direction is consistent with the piston rod. The plurality of positioning sleeves 243 are disposed on the traveling rail 101, specifically, the plurality of positioning sleeves 243 are uniformly distributed on the traveling rail 101 at equal intervals along the length direction of the traveling rail 101, and each positioning sleeve 243 is provided with a positioning hole suitable for the positioning column 242. The positioning driving cylinder 241 is used for lowering the positioning column 242 in the vertical direction so as to insert the positioning column 242 into the positioning hole of the positioning sleeve 243 to position the rack 21 (printing machine), or the positioning driving cylinder 241 is used for driving the positioning column 242 to rise in the vertical direction so as to separate the positioning column 242 from the positioning hole of the positioning sleeve 243.
It should be noted that the plurality of positioning sleeves 243 are uniformly distributed along the length direction of the traveling rail 101, the distance between two adjacent positioning sleeves 243 is the length of the screen printing plate 26 along the length direction of the platen 100, and the preset position is the position of the printing machine between two adjacent positioning sleeves 243, which is the length of the printing web (pattern) of the printing stock. In some embodiments, as the length of the printing material printing breadth (pattern) is different, the distance between two adjacent preset positions is changed, that is, the preset positions are changed, in order to adapt to the change, the positioning sleeves 243 can be detachably mounted, so that the distance between the adjacent positioning sleeves 243 can be conveniently adjusted, and actual requirements of different production can be met.
As shown in fig. 2, the travel driving unit 23 includes: the system comprises a driving travelling wheel 231, a driving travelling wheel driving motor 232, at least two driven travelling wheels 233, a positioning sensor and a plurality of positioning induction sheets. The axis of the driving road wheel 231 and the axis of at least two driven road wheels 233 are parallel to each other, the driving road wheel driving motor 232 is fixed on the frame 21, and the driving road wheel 231 is fixed on the motor shaft of the driving road wheel driving motor 232. At least two driven road wheels 233 are rotatably mounted on the frame 21. The positioning sensor is disposed on the positioning column 242, and the plurality of positioning sensing pieces are in one-to-one correspondence with the plurality of positioning sleeves 243, that is, each positioning sensing piece is disposed on each positioning sleeve 243, and the positioning sensor is electrically connected to the driving travelling wheel driving motor 232 and is configured to control the driving travelling wheel driving motor 232 to stop rotating when the positioning sensor senses the positioning sensing piece.
In the above embodiment, the positioning sensor is disposed on the positioning column 242, so as to accurately and rapidly detect the positioning sensing sheet and realize positioning in the process that the frame 21 travels along the traveling rail 101.
The driving road wheels 231 and the at least two driven road wheels 233 are formed as a support structure for supporting the frame 21 on the bedplate 100, the driving road wheel driving motor 232 is located at one side or at a middle position of one side of the frame 21, the at least two driven road wheels 233 are located on opposite sides of one side of the frame 21, or the at least two driven road wheels 233 are located on adjacent sides of one side of the frame 21.
In this embodiment, three driven traveling wheels 233 are provided, and the three driven traveling wheels 233 are respectively located on one side of the frame 21 and the opposite side of one side, thereby forming a rectangular structure with the driving traveling wheel 231. Of course, in other embodiments, the number of the driven road wheels 233 may be greater, or two driven road wheels 233 may be provided, and two driven road wheels 233 are respectively located on the opposite sides of one side of the frame 21, or two driven road wheels 233 are respectively located on the adjacent two sides of one side of the frame 21, and form a triangular structure with the driving road wheel 231.
When it is necessary to print on the object on the platen 100, the printer 200 is placed on the platen 100, and the trolley 231 and the trolley 233 provided on the frame 21 support the printer 200 on the platen 100. The traction drive motor 232 is operated to rotate the traction wheel 231, and the rotating traction wheel 231 moves the frame 21 forward and rotates the traction wheel 233, thereby moving the printer 200 on the platen 100.
Initiative walking wheel drive motor 232 is servo motor, under the general condition, servo motor's rotational speed is very high, then the torque of motor is relatively lower, can't drive heavy thing, consequently, for the torque size that changes servo motor output, in this application, still can set up the speed reducer between initiative walking wheel drive motor 232 and initiative walking wheel 231, this speed reducer is fixed on frame 21, the input shaft fixed connection of the motor shaft of initiative walking wheel drive motor 232 and speed reducer, initiative walking wheel 231 fixes on the output shaft of speed reducer.
In this embodiment, as shown in fig. 4 and 5, the walking drive device 23 further includes: at least one walking limit track 235 and at least two walking limit components 234, wherein, walking limit track 235 sets up on walking track 101, and the length direction of walking limit track 235 is the same with the length direction of walking track 101, and length is unanimous. The travel limit rails 235 may be provided on one travel rail 101, or the travel limit rails 235 may be provided on both travel rails 101. The at least two walking limit assemblies 234 are installed on one side of the frame 21 along the width direction of the bedplate 100, or the walking limit assemblies 234 are installed on both sides of the frame 21 along the width direction of the bedplate 100. The travel limit component 234 is used for positioning the frame 21 along the width direction of the travel rail 101, and is specifically clamped on the travel limit rail 235 in a clamping manner, so as to keep the frame 21 moving along the length direction of the travel rail 101.
As shown in fig. 5, the travel stop assembly 234 includes: two spacing wheels 2341 and a spacing wheel fixed plate 2342, the top surface of spacing wheel fixed plate 2342 is fixed on the bottom surface of frame 21, two spacing wheels 2341 are all fixed on the bottom surface of spacing wheel fixed plate 2342, the interval between these two spacing wheels 2342 is suitable for the width of walking spacing track 235, so that two spacing wheels 2341 block is on walking spacing track 235, keep frame 21 to fix a position along the length direction of walking spacing track 235 (i.e., walking track 101), i.e., keep printing machine 200 to move along the length direction of walking track 101 under the drive of walking drive arrangement 23.
In this embodiment, in order to make two spacing wheels 2341 press from both sides tight spacing track 235 of walking, this spacing subassembly of walking 23 still includes: and the pushing unit is used for pushing one limiting wheel 2341 to move towards the other limiting wheel 2341, so that the two limiting wheels 2341 are clamped on the walking limiting track 235.
With continued reference to fig. 5, the pushing unit includes: a rotating arm 2343, a fixing block 2344, at least one elastic member 2345, and at least one adjusting bolt 2346. Wherein, the rotating arm 2343 and the fixed block 2344 are both installed on the bottom surface of the limiting wheel fixing plate 222, and this rotating arm 2343 has an installation position a for installing on the limiting wheel fixing plate 222, and the rotating arm 2343 can rotate around this installation position a. One limiting wheel 221 is fixed on the rotating arm 2343, and the other limiting wheel 221 is fixed on the bottom surface of the limiting wheel fixing plate 222. The elastic member 2345 is located between the rotating arm 2343 and the fixing block 2234, and the elastic member 2345 is specifically a spring, and is configured to store elastic potential energy, so that the rotating arm 2343 drives one limiting wheel 221 to move towards the other limiting wheel 221, and thus the two limiting wheels 221 clamp the traveling limiting track 235.
Be equipped with the mounting hole of axial direction basic perpendicular to swinging arm 2343 on fixed block 2344, this mounting hole includes screw thread section and bears the weight of the section, the screw thread section is kept away from swinging arm 2343, it is close to swinging arm 2343 to bear the weight of the section, the one end of elastic component 2345 is located bears the weight of the section, adjusting bolt 2346 spiro union is in the screw thread section, this adjusting bolt 2346 is used for adjusting the elastic potential energy that elastic component 2345 stored, press the power to another spacing wheel 221 with adjusting a spacing wheel 221, thereby can make the spacing track 235 of walking that the interval between two spacing wheels 221 is applicable to different widths.
Referring to fig. 1, fig. 9 and fig. 10, the multi-station printing apparatus provided in this embodiment further includes: two rack lifting/lowering drive mechanisms 29, the two rack lifting/lowering drive mechanisms 29 being provided on both sides of the frame 21 in the longitudinal direction of the platen 100, respectively, a squeegee movement drive mechanism and a squeegee mechanism being provided between the two rack lifting/lowering drive mechanisms 29, the two rack lifting/lowering drive mechanisms 29 being for driving the squeegee device and the racks to ascend or descend.
As shown in fig. 6, the two rack lifting/lowering drive mechanisms 29 each include: a fixed frame 291, a rack lifting drive motor 292, a rack lifting screw 293, a rack lifting screw nut 294, and a rack connecting plate 295. Wherein, fixed frame 291 is fixed on frame 21, and rack lift driving motor 292 is fixed on the top of fixed frame 291 to rack lift driving motor 292's motor shaft sets up down. The rack elevating screw 293 is arranged along the vertical direction, the top end of the rack elevating screw 293 is fixed on the motor shaft of the rack elevating driving motor 292, and the bottom end is rotatably installed at the bottom end of the fixing frame 291. The net rack lifting screw nut 294 is screwed on the net rack lifting screw 293, and the net rack connecting plate 295 is fixed on the net rack lifting screw nut 294. Both ends of the rack 22 in the longitudinal direction of the table 100 are fixed to rack connecting plates 295 of the two rack lifting/lowering drive mechanisms 29, respectively.
The net rack lifting drive motor 292 drives the net rack lifting screw 293 to rotate, and the net rack lifting screw nut 292 converts the rotation into linear motion, so as to drive the net rack connecting plate 295 to ascend or descend, and further drive the net rack 22 to reciprocate in the vertical direction. When the rack 22 is raised, the screen 26 can be cleaned or the screen 26 can be maintained and replaced, and when the rack 22 is lowered, the screen 26 is positioned directly above the printing material.
In this embodiment, continuing to fig. 1, the scraping device 25 includes: a squeegee movement driving mechanism 251 and at least two squeegee mechanisms 252, both of the squeegee movement driving mechanism 251 and at least two squeegee mechanisms 252 being located above the rack 22. At least two scraping mechanisms 252 are respectively positioned above at least two screens 26, the scraping and printing movement driving mechanism 251 is used for driving the at least two scraping and printing mechanisms 252 to simultaneously move from one end to the other end of the screens 26 along the length direction of the bedplate 100 so as to scrape ink, namely, the ink is extruded onto a printing stock from meshes of image-text portions of the screens 26, or the scraping and printing movement driving mechanism 251 is used for driving the at least two scraping and printing mechanisms 252 to simultaneously move from the other end to one end of the screens 26 along the length direction of the bedplate 100 so as to return the ink, namely, the residual ink on the screens 26 after scraping and printing is reversely scraped to a position before scraping and printing, so that the phenomenon of screen blockage of the meshes of the image-text portions of the screens 26 can be avoided.
The process of driving the squeegee mechanism 252 by the squeegee movement driving mechanism 251 to move the screen plate 26 from one end to the other end or from the other end to one end of the screen plate 26 in the longitudinal direction of the platen 100 is performed after the carriage positioning device 24 positions the frame 21 at a predetermined position.
In the above embodiment, at least two scraping mechanisms 252 scrape ink or return ink to at least two screens 26 simultaneously to print on the object to be printed on the platen 100, so that not only the printing efficiency can be improved, but also different sizes of printing webs can be compatible within the maximum printing range, and different printing requirements can be met.
In the present application, the platen 100 may bear at least two rows of printing materials arranged side by side, the width of the at least two rows of printing materials is substantially the same as the width of the platen 100, so that the at least two rows of printing materials may be printed simultaneously, or the platen 100 may bear a single row of printing materials, the width of the single row of printing materials is substantially the same as the width of the platen 100, the at least two scraping mechanisms 252 print the single row of printing materials, and after printing is completed, the printed single row of printing materials may be equally divided in the width direction into the same number as the number of the scraping mechanisms 252.
As shown in fig. 1, 7 and 8, the squeegee movement drive mechanism 251 includes: a squeegee movement drive motor 2511, a squeegee movement drive wheel 2512, a squeegee movement drive driven wheel 2513, a squeegee movement drive conveyor belt 2514, at least one squeegee movement drive slide rail 2515, at least one squeegee movement drive slide block 2516, and a squeegee movement fixed beam 2517. A scraping and printing movement driving motor 2511 is arranged on a net rack connecting plate 295 of one net rack lifting driving mechanism 29, a scraping and printing movement driving wheel 2512 is arranged on a motor shaft of the scraping and printing movement driving motor 2511, a scraping and printing movement driving driven wheel 2513 is arranged on a net rack connecting plate 295 of the other net rack lifting driving mechanism 29, a scraping and printing movement driving conveyor belt 2514 is sleeved between the scraping and printing movement driving wheel 2512 and the scraping and printing movement driving driven wheel 2513, two ends of at least one scraping and printing movement driving slide rail 2515 are arranged between net rack connecting plates 295 of the two net rack lifting driving mechanisms 29, a scraping and printing movement driving slide block 2516 is arranged on the scraping and printing movement driving slide rail 2515 in a sliding manner, a scraping and printing movement fixing beam 2517 is used for fixedly connecting the at least two scraping and printing mechanisms 252, the at least two scraping and printing mechanisms 252 are fixed on the scraping and printing movement fixing beam 2517, and the, the squeegee movement fixing beam 2517 is fixed to the squeegee movement drive belt 2514.
The scraping and printing movement driving motor 2511 outputs torque to drive the scraping and printing movement driving wheel 2512 to rotate, and the rotating scraping and printing movement driving wheel 2512 drives the scraping and printing movement fixing beam 2517 to move through the scraping and printing movement driving conveyor belt 2514 so as to drive the at least two scraping and printing mechanisms 252 to move. In the process of moving the squeegee mechanism 252, in order to ensure that the squeegee mechanism 252 reciprocates from one end of the screen plate 26 to the other end or from the other end of the screen plate 26 to one end along the longitudinal direction of the platen 100, the squeegee movement driving motor 2511 may be implemented in a time-sequential control manner, or alternatively, a squeegee movement sensor may be provided on the squeegee movement fixing beam 2517, and a squeegee movement sensing piece may be provided at each of an initial position (one end or the other end of the screen plate) and a final position (the other end or one end of the screen plate) of the corresponding movement. The squeegee movement sensor is electrically connected to the squeegee movement driving motor 2511, and senses a squeegee movement sensing piece through the squeegee movement sensor to control the operation stop and forward and reverse rotation of the squeegee movement driving motor 2511, thereby realizing a reciprocating movement mode.
As shown in fig. 8, the squeegee mechanism 252 includes: the doctor blade module fixing plate 2521, at least two doctor blade guide rods 2522 and at least two ink recovery blade guide rods 2523, a doctor blade lifting driving unit, an ink recovery blade lifting driving unit, a doctor blade and an ink recovery blade, the doctor blade module fixing plate 2521 is disposed on a doctor moving fixing beam 2517, the at least two doctor blade guide rods 2522 and the at least two ink recovery blade guide rods 2523 are slidably disposed in the doctor blade module fixing plate 2521 along a vertical direction, the doctor blade is fixed at the bottom ends of the at least two doctor blade guide rods 2522, and the doctor blade lifting driving unit is used for driving the doctor blade guide rods 2522 to ascend or descend along the vertical direction, so as to drive the doctor blade to ascend or descend. The ink returning blade is fixed at the bottom end of at least two ink returning blade guide rods 2523, and the ink returning blade lifting driving unit is used for driving the ink returning blade guide rods 2523 to ascend or descend along the vertical direction, so as to drive the ink returning blade to ascend or descend.
When the squeegee movement driving mechanism 251 drives the at least two squeegee mechanisms 252 to simultaneously move from one end to the other end of the screen 26 along the longitudinal direction of the platen 100, the squeegee elevation driving unit drives the at least two squeegee guide rods 2522 to descend, so that the squeegees contact the screen 26 to generate a certain pressure on the screen 26 for squeegeeing, and simultaneously, the doctor elevation driving unit drives the at least two doctor guide rods 2523 to ascend, so that the doctor is separated from the screen 26. When the squeegee movement driving mechanism 251 drives the at least two squeegee mechanisms 252 to simultaneously move from the other end to one end of the screen 26 along the longitudinal direction of the platen 100, the squeegee elevation driving unit drives the at least two squeegee guide rods 2522 to ascend so as to separate the squeegees from the screen 26, and the return blade elevation driving unit drives the at least two return blade guide rods 2523 to descend so as to contact the return blades with the screen 26 to generate a certain pressure on the screen for ink return.
With continued reference to fig. 8, the doctor blade elevation drive unit includes: a doctor blade driving cylinder 2524 and a doctor blade connecting plate 2525. A doctor blade connecting plate 2525 is connected to the tip of a doctor blade guide 2522, a doctor blade driving cylinder 2524 is fixed to the doctor module fixing plate 2521, and the piston rod of the doctor blade driving cylinder 2524 faces above the doctor module fixing plate 2521 and is fixedly connected to the doctor blade connecting plate 2525. The piston rod of the doctor blade driving cylinder 2524 extends to drive the doctor blade connecting plate 2525 to move upward, so as to drive the doctor blade guide rod 2522 to move upward in the vertical direction, thereby driving the doctor blade to ascend; the piston rod of the doctor blade driving cylinder 2524 retracts to move the doctor blade connecting plate 2525 downward, thereby moving the doctor blade guide 2522 downward in the vertical direction, and thus lowering the doctor blade.
The ink return blade lifting driving mechanism comprises: a return blade driving cylinder 2526 and a return blade connecting plate 2527. The ink recovery blade connecting plate 2527 is connected to the top end of the ink recovery blade guide 2523, the ink recovery blade driving cylinder 2526 is fixed to the blade module fixing plate 2521, and the piston rod of the ink recovery blade driving cylinder 2526 faces above the blade module fixing plate 2521 and is fixedly connected to the ink recovery blade connecting plate 2527. The piston rod of the ink returning blade driving cylinder 2526 extends to drive the ink returning blade connecting plate 2527 to move upwards so as to drive the ink returning blade guide rod 2523 to move upwards in the vertical direction, so that the ink returning blade is driven to ascend; the piston rod of the ink returning blade driving cylinder 2526 retracts to drive the ink returning blade connecting plate 2527 to move downward, so as to drive the ink returning blade guide rod 2523 to move downward in the vertical direction, thereby driving the ink returning blade to descend.
In the above embodiment, to ensure the smoothness of the sliding of the doctor blade guide 2522 and the ink return blade guide 2523, at least two doctor blade linear bearings 2528 and at least two ink return blade linear bearings 2529 may be disposed on the doctor module fixing plate 2521, the at least two doctor blade guide 2522 may be slidably inserted into the at least two doctor blade linear bearings 2528, respectively, and the at least two ink return blade guide 2523 may be slidably inserted into the at least two ink return blade linear bearings 2529, respectively.
In the present application, during the travel of the printing machine 200 along the length direction of the platen 100, in order to prevent the machine from colliding with an object (or a person) during the travel, a safety accident is generated. As shown in fig. 9, the walking drive device 23 provided in this embodiment further includes: and a collision avoidance system including a plurality of collision avoidance sensors 234 disposed on opposite sides of the frame 21 along a length direction of the platen 100, wherein the collision avoidance sensors 234 may be infrared sensors, and the collision avoidance sensors 234 are electrically connected to the active traveling wheel driving motor 231, and are configured to control the active traveling wheel driving motor 231 to stop working when sensing an object (or, a person), so as to avoid collision with the object.
When the printing machine 200 prints on the printing stock on the platen 100, the printing quality is affected by the difference between the air humidity and the temperature in the printing process, and the production efficiency and the finished product yield of the printing are affected by the excessively low temperature and humidity, wherein the difference between the curing time and the temperature and humidity of the printing ink hand environment can occur, the difference between the printing stocks can generate different requirements on the printing ink, and the printing stock and the printing ink can generate static electricity to adsorb dust and impurities in the air, so that the printing quality is affected. Therefore, strict control of humidity is a necessary condition for printing.
In view of this, the multi-station printing apparatus provided by the present application further includes: a humidifying device 27, wherein the humidifying device 27 is used for humidifying ink or printing materials. Specifically, referring to fig. 10 and 11, the humidifying device 27 includes: a plurality of nozzles 271, a humidifier 272 and a water tank 273, the plurality of nozzles 271 being disposed on one side of the frame 21 in the width direction of the platen 10, the humidifier 272 being communicated with the plurality of nozzles 271 through a humidifying conduit 274, the water tank 273 being communicated with the humidifier 272. Specifically, the water tank 273 is disposed above the humidifier 272, and is communicated with the water inlet of the humidifier 272 through a communication pipe. The humidifier 272 is configured to generate water mist, and to deliver the generated water mist to each nozzle 271 through the humidifying pipeline 274, and the water mist is sprayed to the ink and the printing material by each nozzle 271.
In this embodiment, a float valve for automatically controlling the water level is provided in the humidifier 272. When the water level in the humidifier 272 reaches the preset height, the float valve rises to automatically close the water inlet of the humidifier 272, and then the water in the water tank 273 cannot enter the humidifier 272 again, so that the normal operation of the humidifier is ensured.
In one embodiment, the nozzles 271 have adjustable flow rate and angle, the flow rate of the water mist sprayed out of the nozzles 271 can be adjusted according to actual needs, and the angle of the nozzles facing the ink and the printing material can be adjusted to meet the actual humidity of the printing material.
In other embodiments, a viewing window may be provided on the water tank 273, through which the water level in the water tank 273 can be viewed, so that water can be added to the water tank 273 in time.
In the present application, as shown in fig. 1, 2, 9, 10, 11 and 12, two sunken type tanks 211 are provided on both sides of the frame 21 in the width direction of the platen 100, each tank 211 is provided with an openable tank door, a humidifier 271 of the humidifying device 27 is provided in one tank 211, and an air compressor 253 and an air tank 254 are provided in the tank 211, the air compressor 253 is used for generating compressed air of a certain pressure, and the air tank 254 is used for storing the compressed air of the certain pressure generated by the air compressor 253 and delivering the compressed air to air-using equipment (for example, a doctor blade driving cylinder 2524 and a return blade driving cylinder 2526) through a pipeline. As shown in fig. 12, an electric component 28 and the like may be provided in the other housing 211 to supply power to the electric devices.
In summary, the multistation lithography apparatus that this embodiment provided adopts walking platen printing mode, prints with two at least scraping printing mechanisms to the stock on the platen, not only can improve printing efficiency, but also the printing breadth of compatible equidimension not satisfies different printing demands.
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 (10)
1. A multi-station printing apparatus, comprising:
the two sides of the bedplate in the width direction are provided with a walking track;
a printing press, comprising: the printing device comprises a rack, a net rack arranged on the rack, a walking driving device, a walking positioning device and a scraping and printing device fixed on the net rack; the net rack is used for detachably mounting at least two screen printing plates which are arranged side by side, the walking driving device is used for driving the rack to walk along a walking track, the walking positioning device is used for positioning the walking rack at a preset position, and the scraping printing device is used for printing a printing stock arranged on the bedplate at the preset position through the screen printing plates; the scraping and printing device comprises: the scraping and printing moving driving mechanism and the at least two scraping and printing mechanisms are positioned above the net rack; the at least two scraping and printing mechanisms are respectively positioned above the at least two screen printing plates; the scraping and printing movement driving mechanism is used for driving the at least two scraping and printing mechanisms to simultaneously move from one end of the screen printing plate to the other end along the length direction of the bedplate so as to scrape ink, or move from the other end of the screen printing plate to one end so as to return ink.
2. A multi-station printing apparatus as claimed in claim 1, wherein said walking positioning means comprises: the positioning driving cylinder is arranged on the rack along the vertical direction, the positioning column is arranged at the piston rod end of the positioning driving cylinder, and the positioning sleeves are arranged on the walking track; the positioning sleeve is provided with a positioning hole suitable for the positioning column; the positioning driving cylinder is used for driving the positioning column to descend along the vertical direction so as to enable the positioning column to be inserted into the positioning hole of the positioning sleeve, or driving the positioning column to ascend along the vertical direction so as to enable the positioning column to be separated from the positioning hole of the positioning sleeve.
3. A multi-station printing apparatus as claimed in claim 2, wherein said travel drive means comprises: the device comprises a driving travelling wheel and at least two driven travelling wheels, wherein the axes of the driving travelling wheel and the driven travelling wheel are parallel to each other; the driving travelling wheel driving motor is fixed on the rack, 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 frame; the driving walking wheel driving motor is positioned on one side of the rack, and the at least two driven walking wheels are positioned on the opposite side of one side of the rack and/or positioned on the two adjacent sides of one side of the rack; the positioning sensor is arranged on the positioning column, the positioning induction pieces are respectively arranged on the positioning sleeves, and the positioning sensor is electrically connected with the driving travelling wheel driving motor and used for controlling the driving travelling wheel driving motor to stop rotating when the positioning induction pieces are induced.
4. A multi-station printing apparatus as claimed in claim 3, wherein said travel drive means further comprises: the walking device comprises at least one walking limiting track and at least two walking limiting components; the walking limiting track is arranged on the walking track, and the length direction of the walking limiting track is the same as that of the walking track; the at least two walking limiting assemblies are arranged on one side of the rack and are used for positioning the rack along the width direction of the walking track; the walking limiting assembly comprises: two limiting wheels and a limiting wheel fixing plate; the top surface of the limiting wheel fixing plate is fixed on the rack, and the two limiting wheels are fixed on the bottom surface of the limiting wheel fixing plate; the spacing 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 to keep the rack to be positioned along the length direction of the walking limiting track.
5. A multi-station printing apparatus as claimed in claim 1, further comprising: the two net rack lifting driving mechanisms are respectively arranged on two side edges of the rack along the length direction of the bedplate, and the scraping and printing moving driving mechanism and the scraping and printing mechanism are arranged between the two net rack lifting driving mechanisms; net rack lift actuating mechanism includes: the rack lifting mechanism comprises a fixed frame fixed on a rack, a rack lifting driving motor fixed at the top end of the fixed frame, a rack lifting screw rod arranged in the vertical direction, a rack lifting screw nut screwed on the rack lifting screw rod, and a rack connecting plate fixed on the rack lifting screw nut; the motor shaft of the net rack lifting driving motor is arranged downwards, the top end of the net rack lifting lead screw is fixed on the motor shaft of the net rack lifting driving motor, and the bottom end of the net rack lifting lead screw is rotatably arranged at the bottom end of the fixed frame; and the two ends of the net rack along the length direction of the bedplate are respectively fixed on net rack connecting plates of the two net rack lifting driving mechanisms.
6. A multi-station printing apparatus as claimed in claim 5, wherein said squeegee movement drive mechanism comprises: the scraping and printing device comprises a scraping and printing movement driving motor, a scraping and printing movement driving wheel, a scraping and printing movement driving driven wheel, a scraping and printing movement driving conveying belt, at least one scraping and printing movement driving sliding rail, a scraping and printing movement driving sliding block and a scraping and printing movement fixing beam, wherein the scraping and printing movement driving motor is installed on a net rack connecting plate of one net rack lifting driving mechanism; the at least two scraping mechanisms are fixed on the scraping movable fixed beam, and the scraping movable fixed beam is arranged along the width direction of the bedplate; the scraping and printing movable fixed beam is fixed on the scraping and printing movable driving conveyor belt.
7. A multi-station printing apparatus as claimed in claim 6, wherein said scraping means comprises: the ink scraping device comprises a scraping knife module fixing plate, at least two scraping knife guide rods, at least two ink returning knife guide rods, a scraping knife lifting driving unit, an ink returning knife lifting driving unit, scraping knives and ink returning knives, wherein the scraping knife module fixing plate is arranged on the scraping and printing moving fixing beam, the scraping knife guide rods and the ink returning knife guide rods are arranged in the scraping knife module fixing plate in a penetrating mode in a sliding mode along the vertical direction, the scraping knife lifting driving unit is used for driving the scraping knife guide rods to ascend or descend along the vertical direction, the ink returning knife lifting driving unit is used for driving the ink returning knife guide rods to ascend or descend along the vertical direction, the scraping knives are arranged at the bottom; when the scraping and printing movement driving mechanism drives the at least two scraping and printing mechanisms to simultaneously move from one end of the screen printing plate to the other end of the screen printing plate along the length direction of the bedplate, the doctor blade lifting driving unit drives the at least two doctor blade guide rods to descend, and the ink return blade lifting driving unit drives the at least two ink return blade guide rods to ascend; when the scraping and printing movement driving mechanism drives the at least two scraping and printing mechanisms to simultaneously move from the other end to one end of the screen printing plate along the length direction of the bedplate, the doctor blade lifting driving unit drives the at least two doctor blade guide rods to ascend, and the ink return blade lifting driving unit drives the at least two ink return blade guide rods to descend.
8. A multi-station printing apparatus as claimed in claim 7, wherein the doctor blade elevation drive unit comprises: the doctor blade driving cylinder and the doctor blade connecting plate; the doctor blade connecting plate is connected to the top end of the doctor blade guide rod, the doctor blade driving cylinder is fixed on the doctor blade module fixing plate, and a piston rod of the doctor blade driving cylinder faces the upper part of the doctor blade module fixing plate and is fixedly connected with the doctor blade connecting plate; the ink return blade lifting driving mechanism comprises: the ink return knife drives the cylinder and the ink return knife connecting plate; the ink return knife connecting plate is connected to the top end of the ink return knife guide rod, the ink return knife driving cylinder is fixed on the scraper module fixing plate, and a piston rod of the ink return knife driving cylinder faces the upper portion of the scraper module fixing plate and is fixedly connected with the ink return knife connecting plate.
9. A multi-station printing apparatus as claimed in claim 3, wherein said travel drive means further comprises: the anti-collision system comprises a plurality of anti-collision sensors arranged on two opposite side edges of the rack along the length direction of the bedplate, the anti-collision sensors are electrically connected with the driving travelling wheel driving motor and are used for controlling the driving travelling wheel driving motor to stop working when sensing an object.
10. A multi-station printing apparatus as claimed in claim 1, further comprising: a humidification device for humidifying ink or a substrate, the humidification device comprising: the humidifier comprises a plurality of nozzles arranged on the rack, a humidifier communicated with the nozzles, and a water tank communicated with the humidifier; the water tank is provided with a visual window, and the visual window is used for observing the water level in the water tank.
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| CN201911327516.6A CN110843326B (en) | 2019-12-20 | 2019-12-20 | Multi-station printing equipment |
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| CN110843326B CN110843326B (en) | 2024-07-16 |
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| CN112743968A (en) * | 2020-12-31 | 2021-05-04 | 湖南翰坤实业有限公司 | Multi-station automatic silk-screen printing equipment |
| CN113085350A (en) * | 2021-04-20 | 2021-07-09 | 广东捷骏电子科技有限公司 | Printing assembly and vacuum printing device |
| CN115302939A (en) * | 2022-09-29 | 2022-11-08 | 泗阳腾晖光电有限公司 | Solar cell printing machine capable of improving temperature and humidity and printing method |
| CN115489194A (en) * | 2022-10-08 | 2022-12-20 | 安徽郅恒交通设施有限责任公司 | Three-dimensional silk screen printing sign make-up machine |
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| CN110843326B (en) | 2024-07-16 |
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