CN107718863A - A kind of cell piece screen print scraper and screen process press - Google Patents

Abstract

The invention discloses a battery sheet screen printing scraper device and a screen printing machine. The scraper device includes a base, a first scraper assembly and a second scraper assembly, and the first scraper assembly includes a front scraper that slides up and down on the base And the first drive mechanism that makes the front scraper slide up and down, the second scraper assembly includes a rear scraper that slides up and down on the base and a second drive mechanism that makes the rear scraper slide up and down, the first drive mechanism includes a first linear motor and Slide up and down the first connecting plate arranged on the first linear motor, the front scraper is fixed on the lower end of the first connecting plate, the second driving mechanism includes the second linear motor and the second linear motor sliding up and down on the second linear motor. The connecting plate, the rear scraper is fixed on the lower end of the second connecting plate. The scraper device adopts the printing method of double scrapers, which cancels the original ink return action and turns the original ink return action into a printing action, which can save printing time and increase printing speed.

Description

A battery sheet screen printing scraper device and screen printing machine

technical field

The invention relates to the technical field of battery sheet manufacturing, in particular to a battery sheet screen printing scraper device and a screen printing machine.

Background technique

In the production process of solar cell components, the production of cells is the core part of the entire solar cell component production process. The main production processes of cells are: texturing, diffusion, wet etching, thin film deposition, electrode printing and sintering. In the process of printing electrodes, screen printing is generally used. Traditional screen printing machines are generally equipped with a scraper device. The scraper device mainly adopts the operation mode of single scraper scraping ink and ink knife return ink. When printing, the scraper is pressed down, printed, and the scraper is lifted up, and then the ink knife is pressed down, the ink is returned, and the ink knife is lifted to complete the whole action. When using this printing method, it takes a certain amount of time for the ink knife to return to the ink. In this way, the printing speed cannot be effectively satisfied, and the speed cannot be effectively improved after reaching a certain printing speed.

Contents of the invention

The object of the present invention is to provide an improved scraper device for screen printing of battery sheets to solve the problems in the prior art.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A battery sheet screen printing scraper device, including a base and a first scraper assembly, the first scraper assembly includes a front scraper that can slide up and down on the base, and is used to drive the front scraper on the The first drive mechanism that slides up and down on the base, the scraper device also includes a second scraper assembly, the second scraper assembly includes a rear scraper that can slide up and down on the base and is used to drive the The second drive mechanism for the rear scraper to slide up and down on the base, the front scraper and the rear scraper are arranged side by side, and the bottom ends of the front scraper and the rear scraper are both inclined outward to form an "eight" shape structure, the first drive mechanism includes a first linear motor arranged on the base and a first connecting plate that can slide up and down on the first linear motor, and the front scraper is fixedly arranged on The lower end of the first connecting plate, the second drive mechanism includes a second linear motor arranged on the base and a second connecting plate that can slide up and down on the second linear motor, the The rear scraper is fixedly arranged at the lower end of the second connecting plate. During the printing process of the battery sheet, one of the two parts of the front scraper and the rear scraper moves downward and is in working condition. The front scraper and the rear scraper The other part of the two parts of the rear scraper rises upwards and is in a waiting state.

Preferably, the first scraper assembly further includes a first balance mechanism, and the second scraper assembly further includes a second balance mechanism, and when the first linear motor drives the front scraper to slide down, the first A balance mechanism applies an upward force to the front scraper, and when the second linear motor drives the rear scraper to slide downward, the second balance mechanism applies an upward force to the rear scraper.

Further, the first balance mechanism includes a first balance cylinder fixed on the base, the second balance mechanism includes a second balance cylinder fixed on the base, and the first connection The plate is fixedly arranged on the movable end of the first balance cylinder, and the second connecting plate is fixedly arranged on the movable end of the second balance cylinder.

Preferably, the first scraper assembly further includes a first guide mechanism that provides guidance when the front scraper slides up and down, and the second scraper assembly further includes a second guide mechanism that provides guidance when the rear scraper slides up and down , the first guide mechanism includes a first slide rail fixedly arranged on the base and extending in the up-down direction and slidably arranged on the first slide rail along the length extension direction of the first slide rail the first sliding block, the second guiding mechanism includes a second sliding rail fixedly arranged on the base and extending in the up-down direction; For the second slider on the second slide rail, the first connecting plate is fixedly arranged on the first slider, and the second connecting plate is fixedly arranged on the second slider.

Further, the first sliding rail and the first sliding block are respectively arranged on opposite sides of the first connecting plate, and the second sliding rail and the second sliding block are respectively arranged on the opposite sides of the second connection plate.

Preferably, the first scraper assembly further includes a first grating for monitoring the displacement of the first linear motor, and the second scraper assembly further includes a second grating for monitoring the displacement of the second linear motor. The grating, the first grating and the second grating are respectively fixed on the base.

Preferably, the first scraper assembly further includes a first photoelectric switch for controlling the start and stop of the first linear motor, and the second scraper assembly further includes a first photoelectric switch for controlling the start and stop of the second linear motor. Two photoelectric switches, the first photoelectric switch and the second photoelectric switch are respectively fixed on the base.

Preferably, the front scraper is detachably connected to the first connecting plate, and the rear scraper is detachably connected to the second connecting plate.

Preferably, the first scraper assembly and the second scraper assembly have the same structure.

The present invention also provides a battery sheet screen printing machine, which has the scraper device as described in any one of the above items.

Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art: the cell screen printing scraper device of the present invention is simple in structure, adopts the double scraper printing method, cancels the original ink return action, and makes the original The action of returning ink has also become a printing action, which can save printing time and increase printing speed. At the same time, because the action of ink return is reduced, the ink return is turned into printing, which improves the service life of the equipment and related parts.

Description of drawings

Accompanying drawing 1 is the three-dimensional view of the cell screen printing scraper device of the present invention;

Accompanying drawing 2 is the front view of accompanying drawing 1;

Accompanying drawing 3 is the sectional view along A-A line in accompanying drawing 2;

Accompanying drawing 4 is the perspective view of the cell screen printing scraper device of the present invention (the first cover plate and the second cover plate are removed);

Accompanying drawing 5 is the front view of accompanying drawing 4;

Accompanying drawing 6 is the rear view of accompanying drawing 4.

detailed description

The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

The battery sheet screen printing scraper device of the present invention is used on a battery sheet screen printing machine, as shown in Figures 1 to 6, the scraper device includes a base 1, a first scraper assembly arranged on Second scraper assembly on base 1.

The base 1 includes a base 11 and a first cover 12 and a second cover 13 respectively arranged on opposite sides of the base 11, between the base 11 and the first cover 12, between the base 11 and the second cover 13 A space for accommodating the first scraper assembly and the second scraper assembly is respectively formed.

The first scraper assembly includes a front scraper 21 that can slide up and down on the base 11, and a first drive mechanism for driving the front scraper 21 to slide up and down on the base 11. The second scraper assembly includes a front scraper that can slide up and down on the base 11. The rear scraper 31 on the top and the second drive mechanism for driving the rear scraper 31 to slide up and down on the base 11, the front scraper 21 and the rear scraper 31 are arranged side by side, and the bottom ends of the front scraper 21 and the rear scraper 31 are all inclined outwards to form " Eight" font structure.

The first driving mechanism comprises a first linear motor 22 arranged on the base 11 and a first connecting plate 23 which can slide up and down on the first linear motor 22, and the front scraper 21 is fixedly arranged on the first connecting plate 23. lower end. The second drive mechanism includes a second linear motor 32 disposed on the base 11 and a second connecting plate 33 slidably disposed on the second linear motor 32 up and down. The rear scraper 31 is fixedly disposed on the lower end of the second connecting plate 33 .

The first scraper assembly also includes a first guide mechanism that provides guidance when the front scraper 21 slides up and down. Specifically, the first guide mechanism includes a first slide rail 24 that extends in the up-down direction and can extend along the length of the first slide rail 24. The first sliding block 25 is slidably disposed on the first sliding rail 24 , the first sliding rail 24 is fixedly disposed on the base 11 , and the first connecting plate 23 is fixedly disposed on the first sliding block 25 .

In this embodiment, the first sliding rail 24 and the first sliding block 25 are respectively disposed on opposite sides of the first connecting plate 23 .

The second scraper assembly also includes a second guide mechanism that provides guidance when the rear scraper 31 slides up and down. The second guide mechanism includes a second slide rail 34 extending in the up and down direction and a ground that can slide along the length extension direction of the second slide rail 34. The second sliding block 35 is arranged on the second sliding rail 34 , the second sliding rail 34 is fixedly arranged on the base 11 , and the second connecting plate 33 is fixedly arranged on the second sliding block 35 .

In this embodiment, the second sliding rail 34 and the second sliding block 35 are respectively disposed on opposite sides of the second connecting plate 33 .

The first scraper assembly also includes a first balance mechanism, and the second scraper assembly also includes a second balance mechanism. When the first linear motor 22 drives the front scraper 21 to slide downward, the first balance mechanism applies an upward force to the front scraper 21. Active force, when the second linear motor 32 drives the rear scraper 31 to slide downward, the second balance mechanism applies an upward active force to the rear scraper 31 . Through the setting of the first balance mechanism and the second balance mechanism, a certain resistance can be provided when the front scraper 21 and the rear scraper 31 slide down, which can prevent the front scraper 21 and the rear scraper 31 from sliding down too fast so that the The cells on the screen printing machine are damaged.

In this embodiment, the first balance mechanism includes a first balance cylinder 26 fixedly arranged on the base 11, the second balance mechanism includes a second balance cylinder 36 fixedly arranged on the base 11, and the first connecting plate 23 is fixedly arranged on the second A movable end of the balance cylinder 26 , the second connecting plate 33 is fixedly arranged on the movable end of the second balance cylinder 36 .

The first scraper assembly also includes a first grating 27 for monitoring the displacement of the first linear motor 22, the second scraper assembly also includes a second grating 37 for monitoring the displacement of the second linear motor 32, the first grating 27 and The second gratings 37 are respectively fixed on the base 11 . Monitoring the displacement of the first linear motor 22 by the first grating 27 and the displacement of the second linear motor 32 by the second grating 37 can calculate the distance between the front scraper 21 and the rear scraper 31 and the battery sheet, so that the distance between the front scraper 21 and the rear scraper 31 can be calculated. The precise positioning of the scraper 31 prevents the front scraper 21 and the rear scraper 31 from moving too far downwards to damage the cells, or the front scraper 21 and the rear scraper 31 from moving downwards too small to affect the printing quality.

The first scraper assembly also includes a first photoelectric switch 28 for controlling the start and stop of the first linear motor 22, and the second scraper assembly also includes a second photoelectric switch 38 for controlling the start and stop of the second linear motor 32. The switch 28 and the second photoelectric switch 38 are respectively fixed on the base 11 .

In this embodiment, the front scraper 21 is detachably connected to the first connecting plate 23, and the rear scraper 31 is detachably connected to the second connecting plate 33, so that the front scraper 21 and the rear scraper 31 can be replaced , it is also possible to replace the front scraper 21 or the rear scraper 31 with an ink knife.

The first scraper assembly and the second scraper assembly have the same structure, so the functions of the two can be interchanged. In this way, the direction of use of the scraper device is not limited, so that the structure is simplified, and no installation or work in different directions is required during use. way, more convenient to use.

When the scraper device is printing, one part in the two parts of the front scraper 21 and the rear scraper 31 presses down and is in the printing working state, while the other part rises upwards and is in a waiting state; when the scraper device returns, the front scraper 21 and the rear scraper 31 One part in the two parts of the scraper 31 rises upwards and is in a waiting state, while the other part presses down, and printing can also be realized while returning ink. In this way, there is no need for ink return time during the printing process of the battery sheet, and the original ink return time can also be used for printing, which can reduce the entire printing time, thereby increasing the printing speed, and at the same time improving the standard components related to it and service life of mechanical parts.

The above-mentioned embodiments are only to illustrate the technical conception and characteristics of the present invention. Substantial equivalent changes or modifications shall fall within the protection scope of the present invention.

Claims (10)

1. a kind of cell piece screen print scraper, including pedestal and the first doctor assemblies, first doctor assemblies include Can slide up and down to be arranged on the pedestal preceding scraper, for driving the preceding scraper to be slided up and down on the pedestal The first drive mechanism, it is characterised in that：The doctor blade device also includes the second doctor assemblies, and second doctor assemblies include Can slide up and down to the rear scraper that is arranged on the pedestal and for drive it is described after scraper on the pedestal on glide The second dynamic drive mechanism, the preceding scraper and the rear scraper are arranged side by side, the bottom of the preceding scraper and the rear scraper Outward-dipping formation " eight " font structure, first drive mechanism include the first straight line motor being arranged on the pedestal With can slide up and down to the first connecting plate for being arranged on the first straight line motor, the preceding scraper is fixedly installed on described The lower end of first connecting plate, second drive mechanism include the second straight line motor being arranged on the pedestal and can be upper and lower The second connecting plate being slidably arranged on the second straight line motor, the rear scraper are fixedly installed on second connecting plate Lower end, in cell piece printing process, the preceding scraper and it is described after a part in scraper two parts move downward In running order, another part in two parts of the preceding scraper and the rear scraper is raised above in wait shape State.

2. cell piece screen print scraper according to claim 1, it is characterised in that：First doctor assemblies are also Including the first balanced controls, second doctor assemblies also include the second balanced controls, when the first straight line motor drives institute Before stating during scraper slide downward, first balanced controls apply the active force of upward direction to the preceding scraper, when described the When two linear electric motors drive the rear scraper slide downward, second balanced controls apply upward direction to the rear scraper Active force.

3. cell piece screen print scraper according to claim 2, it is characterised in that：The first balanced controls bag The first balance cylinder being fixedly installed on the pedestal is included, second balanced controls include being fixedly installed on the pedestal The second balance cylinder, first connecting plate is fixedly installed on the movable end of first balance cylinder, second connection Plate is fixedly installed on the movable end of second balance cylinder.

4. cell piece screen print scraper according to claim 1, it is characterised in that：First doctor assemblies are also Including providing the first guiding mechanism being oriented to when the preceding scraper slides up and down, second doctor assemblies are also included when described The second guiding mechanism being oriented to is provided when scraper slides up and down afterwards, first guiding mechanism includes being fixedly installed on the pedestal Upper and the first vertically extending slide rail and institute can be slidably arranged in along the length bearing of trend of first slide rail The first sliding block on the first slide rail is stated, second guiding mechanism includes being fixedly installed on the pedestal and along the vertical direction prolonging The second slide rail for stretching and can be slidably arranged in along the length bearing of trend of second slide rail on second slide rail the Two sliding blocks, first connecting plate are fixedly installed on first sliding block, and second connecting plate is fixedly installed on described On two sliding blocks.

5. cell piece screen print scraper according to claim 4, it is characterised in that：First slide rail and described First sliding block is respectively arranged on the opposite sides of first connecting plate, and second slide rail and second sliding block are respectively It is arranged on the opposite sides of second connecting plate.

6. cell piece screen print scraper according to claim 1, it is characterised in that：First doctor assemblies are also Include the first grating of the displacement for monitoring the first straight line motor, second doctor assemblies also include being used to monitor institute The second grating of the displacement of second straight line motor is stated, first grating and second grating are respectively fixedly disposed at the base On seat.

7. cell piece screen print scraper according to claim 1, it is characterised in that：First doctor assemblies are also Including the first optoelectronic switch for controlling the first straight line motor start and stop, second doctor assemblies also include being used to control Second optoelectronic switch of the second straight line motor start and stop, first optoelectronic switch and second optoelectronic switch are fixed respectively It is arranged on the pedestal.

8. cell piece screen print scraper according to claim 1, it is characterised in that：The preceding scraper and described the It is mutually detachably connected between one connecting plate, it is mutually detachably connected between scraper and second connecting plate after described.

9. cell piece screen print scraper according to claim 1, it is characterised in that：First doctor assemblies and The second doctor assemblies structure is identical.

A kind of 10. cell piece screen process press, it is characterised in that：With the scraper dress as any one of claim 1 ~ 9 Put.