CN207997665U - A kind of screen printing apparatus - Google Patents
A kind of screen printing apparatus Download PDFInfo
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- CN207997665U CN207997665U CN201820407297.7U CN201820407297U CN207997665U CN 207997665 U CN207997665 U CN 207997665U CN 201820407297 U CN201820407297 U CN 201820407297U CN 207997665 U CN207997665 U CN 207997665U
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Abstract
The utility model discloses a kind of screen printing apparatus, including feeding device, printing equipment and drying unit;Wherein, the feeding device includes let off roll, guide roller, conveying roller and strainer;The strainer includes idler roller, two mounting rods and sliding part;The end of the idler roller is fixedly connected on sliding part;The sliding part is connected to by linear slide structure on mounting rod;The printing equipment includes print station, head unit and positioning mechanism;The positioning mechanism includes bottom plate and adjustment mechanism;On two CCD camera setting bottom plates;The print station includes main body panel and support plate;The main body panel is equipped at least a pair of of registration holes and multiple wind inlets being located at except contraposition.The screen printing apparatus can either provide continual and steady tensile force during feeding for printing substrate, and printing substrate is enabled to more accurately in alignment with halftone, to improve the printing quality of printing substrate.
Description
Technical field
The utility model is related to printing equipments, and in particular to a kind of screen printing apparatus.
Background technology
In silk-screen printing field, it can be common that carry out silk-screen printing to the printing substrate of web-like, process is:In feeding
Under the transmission of device, printing substrate is sent out from let off roll, and after being oriented to accordingly, printing substrate is moved to print station
On, when its area to be printed is delivered to the underface of halftone, doctor is moved downward and is pressed on halftone, so that halftone is pressed on and is held
It printing on material, subsequent doctor moves to the other end from one end of halftone, while the ink on halftone is scraped the other end,
By squeezing action, the pattern on halftone is printed onto on printing substrate, then doctor lifts, general who has surrendered's ink weight under ink-retruning blade
It is newly layered on web plate, then under the transmission of feed mechanism, next area to be printed of printing substrate is delivered to the print below halftone
It on brush platform, then repeats the above steps, printed by the area to be printed of printing substrate;The printing substrate finished printing is delivered to
It dries in drying unit, finally winds on closed reel.
Deficiency is present in the technical solution of existing screen printing apparatus:
1, in feeding device, usually material is drawn by conveying roller (such as air draught roller), several positions are set
It sets fixed nutted rod to be tensioned printing substrate, deficiency is, the size of the speed of conveying roller can influence stock
The size of the tensile force of material, when using different conveying speeds, it is uneven to may result in the tensile force that printing substrate is subject to, mistake
Pine or tension, can all influence the printing quality of printing substrate.
2, after printing substrate is sent on print station, its area to be printed is first directed at halftone, is then printed again, example
Such as, the utility model patent that application publication number is 105538890 A of CN discloses a kind of " silk-screen printing of coiled strip automatic aligning
System ", sets that there are two the transparent panels for observing label on the print station of the screen printing system, and can be equipped on print station
The area to be printed of printing substrate is fixed on print station, to prevent printing substrate by multiple through-holes by connecting negative pressure device
Area to be printed loosened during printing, influence normally to print;Wherein, transparent panel also is provided with several through-holes,
The area to be printed of printing substrate can also be fixed while facilitating CCD camera to be identified in this way, avoid transparent panel
The area to be printed of the printing substrate of top local location loosens;Wherein, when CCD camera is identified through transparent panel
When, since transparent panel is equipped with multiple through-holes, other than some light vertically can penetrate through-hole, other light may be with not
Same angle penetrates through-hole, is then refracted in CCD camera, in this way, the position of the image after refraction is difficult to determine, to not
It can accurately identify the label of product, and the clarity of the image after refraction can decline, and influence normally to identify.
3, it since transparent panel needs to connect with negative pressure device, also needs to that another transparent gear is arranged below transparent panel
Plate, to form negative pressure channel, that is, also barrier has baffle between CCD camera and transparent panel, further influences to be CCD camera shootings
The accuracy of identification of head.
Utility model content
The purpose of the utility model is to overcome above-mentioned problems, provide a kind of screen printing apparatus, the screen printing
Brush equipment can either provide continual and steady tensile force during feeding for printing substrate, improve the printing quality of printing substrate
Amount, and enable to the area to be printed of printing substrate more accurately in alignment with halftone, to obtain accurate printing effect.
The purpose of this utility model is achieved through the following technical solutions:
A kind of screen printing apparatus includes for transmitting the feeding device of printing substrate, for specific content to be printed on
Printing equipment on printing substrate and the drying unit for drying the printer's ink on printing substrate;
Wherein, the feeding device include rack and be respectively provided in rack for place printing substrate let off roll,
Guide roller for being oriented to printing substrate and the conveying roller for providing conveying capacity for printing substrate;Further include using
In the strainer for providing stable tensile force for printing substrate;The strainer includes idler roller, the installation being vertically arranged
Bar and the sliding part being located on mounting rod;The end of the idler roller is fixedly connected on sliding part;The sliding part passes through
The linear slide that can slide up and down structure is connected on mounting rod;Printing substrate is sent out from let off roll, after bypassing guide roller,
It bypasses, then is transmitted on print station from the lower section of idler roller;
The printing equipment includes the print station, head unit and positioning mechanism being arranged in rack;The aligning machine
Structure include the bottom plate being fixed on the rack and be arranged on bottom plate for drive print station carry out position adjustment adjustment mechanism;Two
A CCD camera is connected to by being fixedly connected with mechanism on bottom plate;
The print station includes platen and is used to support the support plate of platen, and the lower end of the support plate is set by movable plate
It sets on adjustment mechanism;The platen is equipped at least a pair of of registration holes, and a pair of of registration holes are corresponding with a pair of of CCD camera;
The registration holes are equipped with transparent panel along the moving direction arrangement perpendicular to material, registration holes;Registration holes are removed on the platen
Transparent panel except other positions be equipped with multiple ventilation holes, the lower section of the ventilation hole is equipped with the ventilation being connected to negative pressure device
Road.
The operation principle of above-mentioned screen printing apparatus is:
Usually, under the action of conveying roller, printing substrate is sent out from let off roll, first bypasses guide roller, so
It bypasses, finally proceeds on print station from the lower section of idler roller afterwards;Wherein, strainer provides the principle of stable tensile force
For:Since idler roller is arranged between two mounting rods, and be fixedly connected on can with respect on the sliding part that mounting rod slides up and down,
I.e. idler roller can do lifting moving along mounting rod;When printing substrate from the lower section of idler roller around out-of-date, in the effect of gravity
Under, idler roller is pressed on printing substrate naturally, and printing substrate lifts idler roller, the tensile force that printing substrate is subject at this time
The as gravity of idler roller so that printing substrate is in the constant state tightened, and does not change with the variation of the speed of driven roller,
It is printed so as to ensure that printing substrate is under suitable and constant tension state, improves printing quality.Further, the feeding
Device can also carry out the storage and supply that only adapt to printing substrate, i.e.,:When the speed that printing substrate is sent into feeding device is big
When the speed of submitting, while idler roller is by declining to ensure that printing substrate has constant-tension, feeding tensioning is increased
The length of printing substrate in mechanism, realizes the storage of printing substrate;And it is sent when the speed of printing substrate feeding feeding device is less than
When the speed gone out, while idler roller is by rising to ensure that printing substrate has constant-tension, feeding strainer is reduced
The length of middle printing substrate realizes the quickening supply of printing substrate;Therefore it is adapted to different printing substrate conveying speeds.This
How sample, the speed no matter transmitted change, and become larger or become smaller, and idler roller can be pressed in floating ground on printing substrate, to carry
For stable tensile force.
After printing substrate is sent on print station, under the action of negative pressure device, printing substrate is adsorbed on main surface
On plate, while two labels being made to be located at the surface of two registration holes, in this way, the label when printing substrate is moved to
The surface of CCD camera, when entering in the identification range of CCD camera, CCD camera can pass through registration holes identification mark
Label, so that it is determined that the position of printing substrate.
Wherein, when label is not in the identification range of CCD camera, the adjustment mechanism that is arranged below print station
Print station can be driven to do corresponding translation and rotation, to drive printing substrate to be translated and be rotated, until label is moved to
The surface of CCD camera, then CCD camera label is identified through registration holes, may thereby determine that printing substrate
Area to be printed position so that the area to be printed of printing substrate then proceeds by printing work in alignment with halftone;It prints
Bi Hou, printing substrate are resent in drying unit and are dried, and finally wind in closed reel.
One preferred embodiment of the utility model, wherein the feeding device further includes for the position to printing substrate
The deviation correction mechanism corrected, the deviation correction mechanism are arranged between strainer and let off roll.Acting on for deviation correcting device is set
In before printing substrate reaches print station, being corrected to the position of printing substrate so that printing substrate is always positioned at correctly
Position avoid carrying out significantly contraposition when printing dynamic to make printing substrate position when being delivered on print station accurate
Make.
One preferred embodiment of the utility model, wherein the rack include be located at print station below the first rack and
The second rack below let off roll;The conveying roller includes that the first biography far from let off roll one end is arranged on print station
The second conveying roller for sending roller and being arranged in the second rack, second conveying roller be located at deviation correction mechanism and let off roll it
Between.By above structure, the first conveying roller and the second conveying roller provide conveying capacity for printing substrate simultaneously, printing substrate from
After being sent out on let off roll, one in front and one in back transmitted by the second conveying roller and the first conveying roller respectively, it in this way can be significantly
It reduces and pulls stress inside printing substrate, to protect the internal structure of printing substrate.
One preferred embodiment of the utility model, wherein the guide roller includes that first be arranged in the first rack is led
It is led to roller, the second guide roller being arranged in the second rack and being arranged in third of the print station far from first conveying roller one end
To roller;First guide roller is set between deviation correction mechanism and the second conveying roller, and second guide roller is set to second
Between conveying roller and let off roll, the third guide roller is set between the first conveying roller and deviation correction mechanism.In this way,
Under the drive of one conveying roller and the second conveying roller, printing substrate is sent out on let off roll, first from the second guide roller around
It is then transferred in deviation correction mechanism on the first guide roller onto the second conveying roller, then from the second conveying roller, to entangle
The posture of positive printing substrate and position, then printing substrate sent out in deviation correction mechanism, from the lower section of idler roller around print
On the third guide roller of brush platform, printing work is proceeded by, it is then past under the drive of the first conveying roller after finishing printing
The direction of drying unit is moved, and after being dried, is wound on closed reel.
Preferably, being equipped with above second guide roller, third guide roller and the second conveying roller can be with respect to it
The compression bar moved up and down, it will be apparent that, when printing substrate is passed from the top of the second guide roller, third guide roller and the second conveying roller
Past tense is sent, under the effect of gravity, compression bar is pressed on printing substrate, to increase the biography for the printing substrate being located behind
Send power.
One preferred embodiment of the utility model, wherein the idler roller include the fixed part that is fixed on sliding part and
Be sleeved on fixed part it is outer and can the portion's of being relatively fixed rotation rotation section.Under the action of conveying roller, printing substrate is around rotation section
Lower edge, then rotation section rotated with the movement of printing substrate, can greatly reduce in this way printing substrate movement when rubbing
Wipe power so that transmission is more smooth.
One preferred embodiment of the utility model, wherein the mounting rod is two, and the idler roller is located at two installations
The centre of bar, both ends are fixedly connected with sliding part.
One preferred embodiment of the utility model, wherein the adjustment mechanism includes that 6 groups of Three Degree Of Freedoms adjust units, 6 groups
Three Degree Of Freedom adjusts that unit is rectangular is arranged on bottom plate, and it includes the first translating rails, that the Three Degree Of Freedom, which adjusts unit,
One translation gliding seat, the second translation gliding seat, rotating disc, the side X being located between the first translating rails and the first translation gliding seat
To linear moving mechanism, be located at the first translation gliding seat and the second translation gliding seat Y-direction linear moving mechanism and be located at turn
Z axis rotating mechanism between Moving plate and the second translation gliding seat;Wherein three groups of Three Degree Of Freedoms, which are adjusted, is equipped with driving X-direction in unit
Linear moving mechanism or Y-direction linear moving mechanism make the straight line driving mechanism to move linearly, respectively first straight line driving machine
Structure, second straight line driving mechanism and third straight line driving mechanism, wherein first straight line driving mechanism and second straight line driving machine
The driving direction of structure is identical, and perpendicular to the driving direction of third straight line driving mechanism.In said structure, due to three straight lines
In driving mechanism, there are two orthogonal driving directions for tool, so platen can do arbitrary linear movement in the horizontal plane,
It is adjusted so as to the position of the area to be printed to printing substrate in the plane;Further, in three straight line drivings
In structure, there are two the driving direction of straight line driving mechanism is identical, and it is located on two different straight lines, when driving direction phase
When two same actuating speeds are inconsistent, i.e., the speed of one driving is fast, when speed of another driving is slow or even does not drive, by
It is located on two different straight lines in two straight line driving mechanisms, so fireballing straight line driving mechanism can be around slow-footed
Straight line driving mechanism rotates, so as to drive entire platen to be rotated, then under the driving of another straight line driving mechanism,
Platen can carry out being translated while rotation, to which the position in the area to be printed to printing substrate and posture are carried out at the same time
Adjustment, it is ensured that the area to be printed of printing substrate can be with screen frame accurate alignment.
One preferred embodiment of the utility model, wherein first translating rails are fixed on bottom plate;Described second is flat
The lower end for moving sliding seat is equipped with the second translating rails, and upper end is connect by Z axis rotating mechanism with rotating disc, second translating rails
The extending direction for extending perpendicularly to the first translating rails;The lower end of the first translation gliding seat is equipped with and the first translation
The lower slider slot of guide rail cooperation, upper end are equipped with the upper sliding groove coordinated with the second translating rails;First straight line driving mechanism and
The extending direction of the first translation gliding seat that two straight line driving mechanisms are driven driven with third straight line driving mechanism first
The extending direction of translation gliding seat is vertical.In this way, the first translating rails are fixed on bottom plate, the first translation gliding seat passes through downslide
On the first translating rails, second translating rails vertical with the first translating rails coordinate in the first translation gliding seat for dynamic slot cooperation
Upper sliding groove in, to constitute two orthogonal linear slide structures, in addition, the upper end of the second translation gliding seat turn
It is dynamic to be connected to rotating disc, to realize the function of rotation.
One preferred embodiment of the utility model, wherein the straight line driving mechanism includes being fixedly installed by motor cabinet
In the driving motor and transmission component of bottom plate, the transmission component includes lead screw and is fixedly connected on the silk of the first translation gliding seat
One end of stem nut, the lead screw is fixed in the shaft of driving motor, and the other end is rotatably connected on bottom plate across feed screw nut
Fixed block on.In this way, under the driving of driving motor, the area to be printed of printing substrate can be driven in alignment with halftone.
One preferred embodiment of the utility model, wherein the registration holes are two pairs, and two CCD cameras pass through adjustable
Pitch from structure setting on bottom plate.In this way, it is different to bit width there are three types of two pairs of registration holes, then pass through and adjust two
The distance between CCD camera so that two CCD cameras are equal to the distance between two registration holes, can use respectively in this way
In the contraposition work of the printing substrate of three kinds of different in width.
One preferred embodiment of the utility model, wherein the mechanism that is fixedly connected includes two supporting racks and is connected to
Link on two supporting racks, the lower end of support frame as described above are fixed on bottom plate, and upper end is fixedly connected on link;It is described
Across on movable plate, two CCD cameras are arranged on link link.Pass through above structure so that two CCD take the photograph
As head is located at the top of movable plate, so as to identify label through the registration holes of print station.
One preferred embodiment of the utility model, wherein the lower section of the main body panel is equipped with air draught connecting plate, the air draught
The upper end that connecting plate is equipped with main body panel coordinates is equipped with the air draught area being connected to multiple ventilating ducts;The air draught area with it is negative
The air draught head of pressure device is connected to.In this way, under the action of negative pressure device, printing substrate can be adsorbed on main surface.
The utility model has the advantages that compared with prior art:
1, due to the end of idler roller is fixedly connected on can be on the sliding part that slides up and down of opposite mounting rod, i.e., idler roller can
To do lifting moving along mounting rod;When printing substrate from the lower section of idler roller around out-of-date, under gravity, idler roller from
So it is pressed on printing substrate, and printing substrate lifts idler roller, the tensile force that printing substrate is subject at this time is idler roller
Gravity so that printing substrate is in the constant state tightened, and does not change with the variation of transmission speed, so as to ensure to hold
Print material, which is under suitable and constant tension state, to be printed, and printing quality is improved.
2, the feeding device of the utility model can also carry out the storage and supply that only adapt to printing substrate, i.e.,:When holding
When printing the speed of material feeding feeding device more than the speed sent out, idler roller ensures that it is constant that printing substrate has by declining
While tension, the length of printing substrate in feeding strainer is increased, realizes the storage of printing substrate;And work as printing substrate
When being sent into the speed of feeding device less than the speed sent out, idler roller ensures that printing substrate has constant-tension by rising
Meanwhile the length of printing substrate in feeding strainer is reduced, realize the quickening supply of printing substrate;Therefore it is adapted to not
Same printing substrate conveying speed.In this way, the speed no matter transmitted becomes larger or becomes smaller, idler roller can be pressed in printing with floating ground
On material, to provide stable tensile force.
3, when label is not at the identification range of CCD camera, the adjustment mechanism below main body panel can drive
Dynamic main body panel does corresponding translation and rotation, to drive printing substrate to be translated and be rotated, until label is moved to CCD
The surface of camera, then CCD camera label is identified through registration holes;Since registration holes are set up directly on main body
On panel, so transparent panel need not be arranged in main body panel again, such CCD camera can be directly through registration holes to label
It is identified so that CCD camera can identify the label on printing substrate more acurrate, more quickly.
4, since transparent panel can be arranged smaller (such as suitable with the camera lens of CCD camera), and do not have on transparent panel
Be arranged ventilation hole, therefore CCD camera through transparent panel identification material on label when, not but not by the shadow of ventilation hole
It rings, and the also not blocking of other component between CCD camera and transparent panel so that CCD camera can be more accurately
The label on material is recognized, to improve the precision of position adjusting.
Description of the drawings
Fig. 1 is the front view of the screen printing apparatus of the utility model.
Fig. 2 is the front view of the feeding device in Fig. 1.
Fig. 3 is the dimensional structure diagram of the feeding device in Fig. 1.
Fig. 4 is the sectional perspective structural schematic diagram of the strainer and the first rack in Fig. 2.
Fig. 5 is the dimensional structure diagram of the idler roller in Fig. 2.
Fig. 6 is the vertical view of the first specific implementation mode of the printing equipment in Fig. 1.
Fig. 7 is the dimensional structure diagram of the first specific implementation mode of the printing equipment in Fig. 1.
Fig. 8 is the partial sectional view in the directions A-A in Fig. 6.
Fig. 9 is the dimensional structure diagram of the other direction of the first specific implementation mode of the printing equipment in Fig. 1,
In, conceal main body panel.
Figure 10 is the dimensional structure diagram of the adjustment mechanism in Fig. 7.
Figure 11 is the dimensional structure diagram of the main body panel and support plate in Fig. 8.
Figure 12 is the dimensional structure diagram of second of specific implementation mode of the printing equipment in Fig. 1.
Specific implementation mode
In order to make those skilled in the art be best understood by the technical solution of the utility model, with reference to embodiment and
Attached drawing is further described the utility model, but the embodiment of the utility model is not limited only to this.
Embodiment 1
Referring to Fig. 1, the screen printing apparatus in the present embodiment includes for transmitting the feeding device A of printing substrate, being used for
By printing equipment that specific content is printed on printing substrate and drying unit for drying the printer's ink on printing substrate
C;The printing equipment includes the print station 1, head unit B and positioning mechanism being arranged in rack;The positioning mechanism packet
It includes the bottom plate 3 being fixed on the rack and the adjustment mechanism for driving print station 1 to carry out position adjustment is set on bottom plate 3;Two
A CCD camera is connected to by being fixedly connected with mechanism on bottom plate 3;The head unit B is arranged by holder b1 in rack.
Referring to Fig. 2-4, the feeding device A include rack and be respectively provided in rack for placing putting for printing substrate
Winding up roller 1a, the guide roller for being oriented to printing substrate and the conveying roller for providing conveying capacity for printing substrate;
It further include the strainer for providing stable tensile force for printing substrate;Wherein, the strainer include idler roller 2a,
The mounting rod 3a the being vertically arranged and sliding part 4a being located on mounting rod 3a;The end of the idler roller 2a is fixedly connected on cunning
On moving part 4a;The sliding part 4a is connected to by the linear slide structure that can slide up and down on mounting rod 3a;Printing substrate from
Let off roll 1a is sent out, and around after guide roller, is bypassed from the lower section of idler roller 2a, then be transmitted on print station 1.
Referring to Fig. 2-4, the feeding device A further includes the deviation correction mechanism corrected for the position to printing substrate
5a, deviation correction mechanism 5a are arranged between strainer and let off roll 1a.The effect that deviation correcting device is arranged is, in printing substrate
Before reaching print station 1, the position of printing substrate to be corrected so that printing substrate is always positioned at correct position, to
It makes printing substrate position when being delivered on print station 1 accurate, avoids carrying out significantly contraposition action when printing.
Referring to Fig. 2-4, the rack includes being located at the first rack 6a of 1 lower section of print station and below let off roll 1a
Second rack 7a;The conveying roller include be arranged on print station 1 far from the one end let off roll 1a the first conveying roller 8a and
The second conveying roller 9a, the second conveying roller 9a being arranged on the second rack 7a is located at deviation correction mechanism 5a and let off roll 1a
Between.By above structure, the first conveying roller 8a and the second conveying roller 9a provide conveying capacity, printing for printing substrate simultaneously
After material is sent out from let off roll 1a, one in front and one in back transmitted by the second conveying roller 9a and the first conveying roller 8a respectively,
It can greatly reduce in this way inside printing substrate and pull stress, to protect the internal structure of printing substrate.
Referring to Fig. 2-4, the guide roller includes the first guide roller 10a being arranged on the first rack 6a, is arranged second
The second guide roller 11a on rack 7a and it is arranged in third guide roller of the print station 1 far from first one end conveying roller 8a
12a;The first guide roller 10a is set between deviation correction mechanism 5a and the second conveying roller 9a, and the second guide roller 11a is set
It is placed between the second conveying roller 9a and let off roll 1a, the third guide roller 12a is set to the first conveying roller 8a and correction
Between mechanism 5a.In this way, under the drive of the first conveying roller 8a and the second conveying roller 9a, printing substrate is on let off roll 1a
It sends out, first from the second guide roller 11a on the second conveying roller 9a, then from the second conveying roller 9a around the first guiding
It on roller 10a, is then transferred in deviation correction mechanism 5a, to correct posture and the position of printing substrate, then printing substrate is entangling
It is sent out in inclined mechanism 5a, from the lower section of idler roller 2a on the third guide roller 12a of print station 1, proceeds by printing
Work after finishing printing, under the drive of the first conveying roller 8a, is then moved toward the direction of drying unit C, is dried
Afterwards, winding is on closed reel.
Referring to Fig. 3, it is equipped with above the second guide roller 11a, third guide roller 12a and the second conveying roller 9a
It can be with respect to the compression bar 13a that it is moved up and down, it will be apparent that, when printing substrate is from the second guide roller 11a, third guide roller 12a and
Past tense is transmitted in the top of two conveying roller 9a, and under the effect of gravity, compression bar 13a is pressed on printing substrate, to increase
Add the conveying capacity for the printing substrate being located behind.
Referring to Fig. 5, the idler roller 2a includes the fixed part 2-1a being fixed on sliding part 4a and is sleeved on fixed part 2-1a
Rotation section 2-2a outer and that portion 2-1a rotations can be relatively fixed.Under the action of conveying roller, printing substrate is around rotation section 2-
The lower edge of 2a, then rotation section 2-2a rotated with the movement of printing substrate, can greatly reduce in this way printing substrate movement
When frictional force so that transmission it is more smooth.
Referring to Fig. 5, the mounting rod 3a is two, and the idler roller 2a is located at the centre of two mounting rod 3a, both ends and
Sliding part 4a is fixedly connected.
Referring to Fig. 6-11, the print station 1 includes platen 1-1 and the support plate 1-2 for being used to support platen 1-1, the branch
The lower end of fagging 1-2 is arranged by movable plate 5 on 6 groups of adjustment mechanisms 4;The platen 1-1 is equipped at least a pair of of registration holes
1-11, the registration holes 1-11 are along the moving direction arrangement perpendicular to printing substrate;It is located at registration holes 1- on the platen 1-1
Multiple ventilation holes are additionally provided with except 11, the lower section of the ventilation hole is equipped with the ventilating duct 1-12 being connected to negative pressure device;The CCD
Camera 2 is connected to by being fixedly connected with mechanism on bottom plate 3.
Referring to Figure 10, the adjustment mechanism 4 includes that 6 groups of Three Degree Of Freedoms adjust unit, and it is in square that 6 groups of Three Degree Of Freedoms, which adjust unit,
Shape is arranged on bottom plate 3, the Three Degree Of Freedom adjust unit include the first translating rails 4-1, the first translation gliding seat 4-2,
Second translation gliding seat 4-3, rotating disc 4-4, the X-direction being located between the first translating rails 4-1 and the first translation gliding seat 4-2
Linear moving mechanism, the Y-direction linear moving mechanism being located between the first translation gliding seat 4-2 and the second translation gliding seat 4-3
And it is located at the Z axis rotating mechanism between rotating disc 4-4 and the second translation gliding seat 4-3;Wherein three groups of Three Degree Of Freedoms are adjusted single
It is equipped with driving X-direction linear moving mechanism in member or Y-direction linear moving mechanism makees the straight line driving mechanism to move linearly, respectively
For first straight line driving mechanism 6, second straight line driving mechanism 7 and third straight line driving mechanism 8, wherein first straight line drives
Mechanism 6 is identical with the driving direction of second straight line driving mechanism 7, and perpendicular to the driving direction of third straight line driving mechanism 8.
In above structure, due in three straight line driving mechanisms, tool is there are two orthogonal driving direction, so head unit can be with
Arbitrary linear movement is done in the horizontal plane, is adjusted so as to the position to screen frame 7;Further, in three straight lines
In driving mechanism, there are two the driving direction of straight line driving mechanism is identical, and it is located on two different straight lines, works as driving
When identical two actuating speeds in direction are inconsistent, i.e., the speed of one driving is fast, and the speed of another driving is slow not to drive even
When dynamic, since two straight line driving mechanisms are located on two different straight lines, so fireballing straight line driving mechanism can be around
Slow-footed straight line driving mechanism rotation, so as to drive entire head unit to be rotated, then in another linear drives
Under the driving of mechanism, head unit can carry out being translated while rotation.
Referring to Fig. 5, the first translating rails 4-1 is fixed on bottom plate 3;The lower end of the second translation gliding seat 4-3
Equipped with the second translating rails, upper end is connect by rotation connection structure with rotating disc 4-4, the extending direction of second translating rails
Perpendicular to the extending direction of the first translating rails 4-1;The lower end of the first translation gliding seat 4-2 is equipped with and the first translating rails
The lower slider slot of 4-1 cooperations, upper end are equipped with the upper sliding groove coordinated with the second translating rails;First straight line driving mechanism 6 and
What the extending direction for the first translation gliding seat 4-2 that two straight line driving mechanisms 7 are driven was driven with third straight line driving mechanism 8
The extending direction of first translation gliding seat 4-2 is vertical.In this way, the first translating rails 4-1 is fixed on bottom plate 3, the first translation is slided
Dynamic seat 4-2 is coordinated by lower slider slot on the first translating rails 4-1, and the vertical with the first translating rails 4-1 second translation is led
Rail coordinates in the upper sliding groove of the first translation gliding seat 4-2, to constitute two orthogonal linear slide structures, separately
Outside, it is rotatablely connected rotating disc 4-4 in the upper end of the second translation gliding seat 4-3, to realize the function of rotation.
Referring to Figure 10, the straight line driving mechanism includes 10 He of driving motor that bottom plate 3 is fixed at by motor cabinet 9
Transmission component, the transmission component includes lead screw 11 and is fixedly connected on the feed screw nut 12 of the first translation gliding seat 4-2, described
One end of lead screw 11 is fixed in the shaft of driving motor 10, and the other end is rotatably connected on consolidating for bottom plate 3 across feed screw nut 12
Determine on block.In this way, under the driving of driving motor 10, the area to be printed of printing substrate can be driven in alignment with halftone.
Referring to Fig. 9, the connection for being fixedly connected with mechanism and including two supporting racks 13 and being connected on two supporting racks 13
The lower end of frame 14, support frame as described above 13 is fixed on bottom plate 3, and upper end is fixedly connected on link 14;The link 14 is horizontal
Across on movable plate 5, two CCD cameras 2 are arranged on link 14.Pass through above structure so that two CCD cameras
2 are located at the top of movable plate 5, so as to identify label through registration holes 1-11.
Referring to Fig. 8 and Figure 11, the lower section of the main body panel 1-1 is equipped with air draught connecting plate 15, which sets
There is the upper end with main body panel 1-1 cooperations to be equipped with the air draught area 15-1 being connected to multiple ventilating duct 1-12;The air draught area
15-1 is connected to the air draught head of negative pressure device.In this way, under the action of negative pressure device, printing substrate can be adsorbed on main surface
On.
Referring to Fig. 1-12, the operation principle of the screen printing apparatus in the present embodiment is:
Usually, under the action of conveying roller, printing substrate is sent out from let off roll 1a, first bypasses guide roller,
Then it bypasses, is finally proceeded on print station 1 from the lower section of idler roller 2a;Wherein, strainer provides stable tensile force
Principle is:Since idler roller 2a is arranged between two mounting rod 3a, and it is fixedly connected on and can be slided up and down with respect to mounting rod 3a
Sliding part 4a on, i.e. idler roller 2a can do lifting moving along mounting rod 3a;When printing substrate is from the lower section of idler roller 2a
Around out-of-date, under gravity, idler roller 2a is pressed on printing substrate naturally, and printing substrate lifts idler roller 2a,
The tensile force that printing substrate is subject at this time is the gravity of idler roller 2a so that printing substrate is in the constant state tightened, no
Change with the variation of the speed of driven roller, is printed so as to ensure that printing substrate is under suitable and constant tension state
Brush improves printing quality.
Further, when the speed of transmission becomes larger, printing substrate can drive up idler roller 2a so that the edges idler roller 2a
Mounting rod 3a up to move a certain distance, but the tensile force that printing substrate is subject at this time remains as the gravity of idler roller 2a,
On the contrary, when the speed of transmission becomes small, printing substrate becomes the state loosened from the constant state tightened, and idler roller 2a can edge
It mounting rod 3a to move down certain distance, continues to be pressed on printing substrate, to provide continual and steady tensile force.In this way, nothing
How to change by the speed of transmission, become larger or become smaller, idler roller 2a can be pressed in floating ground on printing substrate, steady to provide
Fixed tensile force.
After printing substrate is sent on print station 1, under the action of negative pressure device, printing substrate is adsorbed on main surface
On plate 1-1, while two labels being made to be located at the surface of two registration holes 1-11, in this way, when the label of printing substrate
It is moved to the surface of CCD camera 2, when entering in the identification range of CCD camera 2, CCD camera 2 i.e. permeable pair
Position hole 1-11 identifies label, so that it is determined that the position of printing substrate.
Wherein, when label is not at the identification range of CCD camera 2, the adjustment mechanism below print station 1 is set
4 can drive print station 1 to do corresponding translation and rotation, to drive printing substrate to be translated and be rotated, until label moves
To the surface of CCD camera 2, then CCD camera 2 is identified label through registration holes 1-11, may thereby determine that
The position in the area to be printed of printing substrate so that the area to be printed of printing substrate then proceeds by printer in alignment with halftone
Make.After finishing printing, printing substrate is resent in drying unit C and is dried, and finally winds in closed reel.
Embodiment 2
Referring to Figure 12, as different from Example 1, the registration holes 1-11 is two pairs, and two CCD cameras 2 are by can
The structure setting of adjustable range is on bottom plate 3.In this way, it is different to bit width there are three types of two couples of registration holes 1-11, then pass through tune
Saving the distance between two CCD cameras 2 so that two CCD cameras 2 are equal to the distance between two registration holes 1-11, this
Sample may be respectively used for the contraposition work of the printing substrate of three kinds of different in width.
Above-mentioned is the preferable embodiment of the utility model, but the embodiment of the utility model is not by the above
Limitation, other any Spirit Essences without departing from the utility model and the change made under principle, replacement, are combined, letter at modification
Change, should be equivalent substitute mode, be included within the scope of protection of the utility model.
Claims (10)
1. a kind of screen printing apparatus, which is characterized in that include for transmitting the feeding device of printing substrate, for will be specific interior
Hold the printing equipment being printed on printing substrate and the drying unit for drying the printer's ink on printing substrate;
Wherein, the feeding device includes rack and the let off roll for placing printing substrate being respectively provided in rack, is used for
The guide roller be oriented to printing substrate and the conveying roller for providing conveying capacity for printing substrate;Further include for for
Printing substrate provides the strainer of stable tensile force;The mounting rod that the strainer includes idler roller, is vertically arranged with
And it is located at the sliding part on mounting rod;The end of the idler roller is fixedly connected on sliding part;The sliding part by can on
The linear slide structure of lower slider is connected on mounting rod;Printing substrate is sent out from let off roll, around after guide roller, from
The lower section of tight roller bypasses, then is transmitted on print station;
The printing equipment includes the print station, head unit and positioning mechanism being arranged in rack;The positioning mechanism packet
It includes the bottom plate being fixed on the rack and the adjustment mechanism for driving print station to carry out position adjustment is set on bottom plate;Two
CCD camera is connected to by being fixedly connected with mechanism on bottom plate;
The print station includes platen and is used to support the support plate of platen, and the lower end of the support plate is arranged by movable plate
On adjustment mechanism;The platen is equipped at least a pair of of registration holes, and a pair of of registration holes are corresponding with a pair of of CCD camera;It is described
Registration holes are equipped with transparent panel along the moving direction arrangement perpendicular to material, registration holes;The saturating of registration holes is removed on the platen
Other positions except isotropic disk are equipped with multiple ventilation holes, and the lower section of the ventilation hole is equipped with the ventilating duct being connected to negative pressure device.
2. screen printing apparatus according to claim 1, which is characterized in that the feeding device further includes for printing
The deviation correction mechanism that the position of material is corrected, the deviation correction mechanism are arranged between strainer and let off roll.
3. screen printing apparatus according to claim 1, which is characterized in that the rack includes being located at below print station
First rack and the second rack below let off roll;The conveying roller includes being arranged on print station far from let off roll one
First conveying roller at end and the second conveying roller being arranged in the second rack, second conveying roller are located at deviation correction mechanism
Between let off roll.
4. screen printing apparatus according to claim 1 or 3, which is characterized in that the guide roller includes being arranged first
The first guide roller in rack, the second guide roller being arranged in the second rack and setting are in print station far from the first transmission rolling
The third guide roller of cylinder one end;First guide roller is set between deviation correction mechanism and the second conveying roller, and described second leads
It is set between the second conveying roller and let off roll to roller, the third guide roller is set to the first conveying roller and deviation correction mechanism
Between.
5. screen printing apparatus according to claim 4, which is characterized in that second guide roller, third guide roller with
And second be equipped with above conveying roller can be with respect to the compression bar that it is moved up and down.
6. screen printing apparatus according to claim 1, which is characterized in that the mounting rod is two, the idler roller
Positioned at the centre of two mounting rods, both ends are fixedly connected with sliding part.
7. screen printing apparatus according to claim 1, which is characterized in that the adjustment mechanism includes 6 groups of Three Degree Of Freedoms
Adjust unit, 6 groups of Three Degree Of Freedoms adjust that unit is rectangular to be arranged on bottom plate, and it includes first that the Three Degree Of Freedom, which adjusts unit,
Translating rails, the second translation gliding seat, rotating disc, are located at the first translating rails and the first translation gliding at the first translation gliding seat
Seat between X-direction linear moving mechanism, be located at the first translation gliding seat and the second translation gliding seat Y-direction linear moving mechanism
And it is located at the Z axis rotating mechanism between rotating disc and the second translation gliding seat;Wherein three groups of Three Degree Of Freedoms are adjusted sets in unit
There are driving X-direction linear moving mechanism or Y-direction linear moving mechanism to make the straight line driving mechanism that moves linearly, respectively first
Straight line driving mechanism, second straight line driving mechanism and third straight line driving mechanism, wherein first straight line driving mechanism and second
The driving direction of straight line driving mechanism is identical, and perpendicular to the driving direction of third straight line driving mechanism.
8. screen printing apparatus according to claim 1 or claim 7, which is characterized in that first translating rails are fixed on bottom
On plate;The lower end of the second translation gliding seat is equipped with the second translating rails, and upper end is connected by Z axis rotating mechanism and rotating disc
It connects, the extending direction for extending perpendicularly to the first translating rails of second translating rails;The first translation gliding seat
Lower end is equipped with the lower slider slot coordinated with the first translating rails, and upper end is equipped with the upper sliding groove coordinated with the second translating rails;The
The extending direction for the first translation gliding seat that one straight line driving mechanism and second straight line driving mechanism are driven drives with third straight line
The extending direction for the first translation gliding seat that motivation structure is driven is vertical.
9. screen printing apparatus according to claim 8, which is characterized in that the straight line driving mechanism includes passing through motor
Seat is fixed at the driving motor and transmission component of bottom plate, and the transmission component includes lead screw and is fixedly connected on the first translation
One end of the feed screw nut of sliding seat, the lead screw are fixed in the shaft of driving motor, and the other end is rotated across feed screw nut
It is connected on the fixed block of bottom plate.
10. screen printing apparatus according to claim 9, which is characterized in that the registration holes are two pairs, and two CCD take the photograph
As head by the structure setting of adjustable distance on bottom plate;The mechanism that is fixedly connected includes two supporting racks and is connected to two
The lower end of link on a supporting rack, support frame as described above is fixed on bottom plate, and upper end is fixedly connected on link;The company
Frame is connect across on movable plate, two CCD cameras are arranged on link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820407297.7U CN207997665U (en) | 2018-03-23 | 2018-03-23 | A kind of screen printing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820407297.7U CN207997665U (en) | 2018-03-23 | 2018-03-23 | A kind of screen printing apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN207997665U true CN207997665U (en) | 2018-10-23 |
Family
ID=63840067
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820407297.7U Active CN207997665U (en) | 2018-03-23 | 2018-03-23 | A kind of screen printing apparatus |
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| CN (1) | CN207997665U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109605917A (en) * | 2019-01-30 | 2019-04-12 | 温州欧宏机械有限公司 | A kind of screen printer |
| CN110842850A (en) * | 2019-11-12 | 2020-02-28 | 东莞盛翔精密金属有限公司 | A paste dress platform for earphone silk screen |
| CN112537122A (en) * | 2020-11-18 | 2021-03-23 | 邵垲文 | Highly intelligent and accurate digit control machine tool printing equipment |
| CN113978111A (en) * | 2021-10-15 | 2022-01-28 | 河南博雅彩印有限公司 | Printing device and using method thereof |
-
2018
- 2018-03-23 CN CN201820407297.7U patent/CN207997665U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109605917A (en) * | 2019-01-30 | 2019-04-12 | 温州欧宏机械有限公司 | A kind of screen printer |
| CN109605917B (en) * | 2019-01-30 | 2024-03-29 | 温州欧宏机械有限公司 | Silk screen printing machine |
| CN110842850A (en) * | 2019-11-12 | 2020-02-28 | 东莞盛翔精密金属有限公司 | A paste dress platform for earphone silk screen |
| CN112537122A (en) * | 2020-11-18 | 2021-03-23 | 邵垲文 | Highly intelligent and accurate digit control machine tool printing equipment |
| CN113978111A (en) * | 2021-10-15 | 2022-01-28 | 河南博雅彩印有限公司 | Printing device and using method thereof |
| CN113978111B (en) * | 2021-10-15 | 2023-02-24 | 河南博雅彩印有限公司 | Printing device and using method thereof |
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