CN115534503A

CN115534503A - Screen printing equipment

Info

Publication number: CN115534503A
Application number: CN202211263754.7A
Authority: CN
Inventors: 任建强; 陶利松; 张群芳
Original assignee: Zhejiang Hete Photoelectricity Co ltd
Current assignee: Zhejiang Hete Photoelectricity Co ltd
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2022-12-30

Abstract

The utility model relates to a field of solar wafer preparation, especially, relate to a screen printing equipment, which comprises a frame, locate the frame and drive the drive belt of battery piece antedisplacement, locate directly over the drive belt and by the silk screen of tensioning, locate directly over the silk screen and be the state of slope and laminate in the silk screen so that the silk screen pushes down the scraper of laminating in the battery piece, the scraper sets up two, two scrapers are connected with same pivoted switching post, the frame is equipped with the post mobile device that can drive the switching post and remove in order to adjust the scraper position, the frame is equipped with two and supports the board, the switching post is equipped with and is located two and supports between the board and can the drive piece of butt in supporting the board, the switching post is equipped with and makes the switching post tend to high scraper one side pivoted limit of height and changes the device, make the electrode printing efficiency of battery obtain promoting.

Description

Screen printing equipment

Technical Field

The application relates to the field of solar cell preparation, in particular to a screen printing device.

Background

In the preparation process of the solar cell, positive and negative electrodes are required to be manufactured on the positive and negative surfaces of the cell, so that the current generated by illumination can be led out through the electrodes. Currently, screen printing techniques are commonly used to fabricate electrodes on batteries.

When current screen printing, carry out the stretch-draw with the silk screen earlier, then the battery conveys under the silk screen, there is slight interval between battery and the silk screen, then place metal paste on the silk screen, the scraper that is the slope is line contact with the silk screen, and make the silk screen be located the part under the scraper can laminate in the battery surface, then the scraper removes, make metal paste driven and when the mesh department through the silk screen, metal paste can be via mesh adhesion to battery surface, behind the mesh department that the scraper corresponds, the silk screen kick-backs under the effect of self elasticity, only leave metal paste on the battery surface in order to form the electrode.

To the correlation technique among the aforesaid, after a battery piece accomplished electrode printing, the scraper needs to return according to former route and resets to make the scraper drive printing ink with a set slope gesture all the time and remove, so will make the idle time between two time points after printing is accomplished to a battery and before next battery begins printing longer, reduced the whole efficiency of battery surface electrode printing.

Disclosure of Invention

In order to improve the overall efficiency of battery surface electrode printing, the application provides a screen printing apparatus.

The screen printing equipment provided by the application adopts the following technical scheme.

The utility model provides a screen printing equipment, includes the frame, locate the frame and drive the drive belt of battery piece antedisplacement, locate directly over the drive belt and by the screen of tensioning, locate directly over the screen and be the state of slope and laminate in the screen so that the screen pushes down the scraper of laminating in the battery piece, the scraper sets up two, and two scrapers are connected with same can pivoted switching post, and the frame is equipped with and drives the post mobile device that the switching post removed in order to adjust the scraper position, and the frame is equipped with two and supports the board, switches the post and is equipped with and is located two and supports between the board and can the butt in the drive piece that supports the board, switches the post and is equipped with and makes the switching post tend to high scraper one side pivoted limit of changeing the device.

Through adopting above-mentioned technical scheme, make to accomplish the electrode printing back of a battery piece at the scraper, drive the piece and can butt in a support board, make the switching post rotate, originally contact and keep away from the silk screen in the scraper of silk screen, originally keep away from the scraper of silk screen and contact in the silk screen, make the in-process that moves back that resets switching post, the electrode printing of next battery can be carried out in the scraper of silk screen to new contact, make when switching post every removal homoenergetic corresponding scraper carry out the electrode printing of a battery, can promote the whole efficiency when printing the electrode to big battery of batches better, also can carry out abundant use to metal paste simultaneously.

Optionally, the post mobile device is including rotating the translation lead screw of connecting in the frame, locate the frame and drive translation lead screw pivoted lead screw motor, threaded connection is in the lead screw piece of translation lead screw, locate the frame and supply the lead screw piece along the gliding horizontal guide bar of battery side length direction, locate the perpendicular cylinder that moves of lead screw piece, locate the perpendicular guide bar of lead screw piece, connect in perpendicular cylinder power bar that moves and sliding connection in the cylinder piece of erecting the guide bar, cylinder piece moving direction perpendicular to lead screw piece moving direction, the switching post rotates and connects in the cylinder piece.

By adopting the technical scheme, the screw motor is communicated with an external power supply, so that the translation screw rotates, the screw block moves to drive the scraper to cling to the silk screen to move when the electrode is printed, the vertical moving cylinder drives the cylinder block to move, so that the scraper can be properly away from the silk screen, the printed battery is conveniently moved away, and the battery to be printed is moved to the position under the silk screen.

Optionally, the rotation limiting device comprises an extension spring detachably connected to the driving block and the cylinder block, two rotation limiting blocks connected to the circumferential outer wall of the switching column, and two fixed blocks arranged on the cylinder block and capable of being abutted by the rotation limiting blocks, and the distance between one end of the extension spring connected with the cylinder block and the axis of the switching column can be smaller than the distance between one end of the extension spring connected with the cylinder block and the driving block.

Through adopting above-mentioned technical scheme, make and drive piece butt when supporting the board, because support the board and can't remove easily, make and drive the piece and remove, make and switch the post and rotate, make extension spring compelled to elongate, switch post turning point, the state that three points that drive piece and extension spring connect the one end of frame are located the collinear state is the intermediate state, when driving the piece through the intermediate state, extension spring drives and switches the post and rotate, make the state of two scrapers exchange, and the setting up of fixed block makes extension spring be difficult for driving and switches the post and rotate excessively, make the scraper be difficult for causing too big pressure to the silk screen.

Optionally, the fixed block is slidably connected to the cylinder block around the rotation axis of the switching column, and the fixed block is in threaded connection with a positioning bolt for fixing the position of the fixed block.

Through adopting above-mentioned technical scheme for the scraper obtains certain adjustment to the pressure that the silk screen caused, makes and changes or interval change etc. can make the scraper push down the condition that pressure needs adjust in step appear between silk screen and the battery changing at the silk screen, can be comparatively convenient carry out the adjustment that suits to scraper push down pressure.

Optionally, the positioning bolt penetrates through the fixing block, one end of the positioning bolt penetrating through the fixing block is rotatably connected with a bolt rack, and a block rack for meshing the bolt rack is arranged inside the cylinder block.

Through adopting above-mentioned technical scheme, after deciding the piece position adjustment, rotate positioning bolt for the bolt rack can mesh in the piece rack, makes and decides the piece and be difficult to remove at will again, so that drive the piece and can not force the easy appearance position of deciding the piece to remove under extension spring's drive, makes the scraper difficult random change that appears to the pressure of silk screen.

Optionally, the switching columns are arranged in two, the two switching columns are coaxially and fixedly connected with a connecting rod, and each switching column corresponds to one group of two abutting plates.

Through adopting above-mentioned technical scheme for the scraper is sticis carrying out the in-process that the electrode printed in the silk screen, and the scraper is more stable, and the setting of connecting rod simultaneously makes two switching posts can carry out synchronous rotation, so that the scraper is difficult for receiving and comes from because of two great deformation external forces that switch the asynchronous pivoted of post.

Optionally, the scraper all includes fixed connection in the mounting panel of switching the post, can dismantle and connect in the mounting panel and the butt in the dismantlement piece of silk screen.

Through adopting above-mentioned technical scheme to only change when dismantling the piece and have great wearing and tearing can dismantling the piece, also help further reducing the torsional deformation external force that dismantles the piece and receive simultaneously.

Optionally, a connecting piece is arranged at one end, close to the two detaching pieces, of each detaching piece, and the detaching pieces are inserted into the mounting plate along the length direction of the detaching pieces.

Through adopting above-mentioned technical scheme to change or install in step two dismantlement pieces simultaneously, also make and to share some external force jointly between two dismantlement pieces.

Optionally, the two abutting plates are slidably connected to the frame, the frame is rotatably connected with an abutting plate screw rod for driving the two abutting plates to approach or keep away from each other, and the frame is provided with a screw motor for driving the abutting plate screw rod to rotate.

Through adopting above-mentioned technical scheme for after the length that the battery waited to print appears changing, the interval between two resisting boards also can carry out corresponding adjustment, so that the battery of different specifications in the better adaptation certain limit.

Optionally, the thread directions of the two sides of the central point of the screw rod of the abutting plate are opposite, and the two abutting plates are located at equal distances on the two sides of the central point of the screw rod of the abutting plate.

Through adopting above-mentioned technical scheme for a support the board screw rod and can drive two and support board synchronous motion, make the removal of two and support the board comparatively synchronous, make two central points that support between the board difficult for appearing the position change with the central line that can be better align in the battery always, make when driving a piece butt in two and support the board, can be better ensure to accomplish the state of electrode printing for a battery.

In summary, the present application includes at least one of the following advantages:

1. the corresponding scraper can be used for printing the electrode of one battery when the switching column moves every time, so that the overall efficiency of printing the electrodes on a large batch of batteries can be improved;

2. change or interval change etc. can make the scraper to push down the condition that pressure needs adjust in step and appear between silk screen and the battery at the silk screen, the adjustment that can be comparatively convenient carries out the adaptation to scraper pressure.

Drawings

FIG. 1 is a schematic diagram of the main structure of the present application;

FIG. 2 is a schematic view of the structure at one end in the length direction of the cylinder block;

fig. 3 is an enlarged view of a in fig. 2.

Description of the reference numerals: 1. a frame; 2. a transmission belt; 3. a wire mesh; 31. a rack in the block; 32. a connecting rod; 33. mounting a plate; 34. disassembling the sheet; 35. connecting sheets; 36. a frame plate; 37. an end face rod; 38. a grooving bar; 4. a scraper; 41. a cylinder block; 42. an extension spring; 43. fixing blocks; 44. a rotation limiting block; 45. a support plate screw rod; 46. a lead screw motor; 47. a screw motor; 48. positioning the bolt; 49. a bolt rack; 5. switching columns; 51. a column moving device; 52. a resisting plate; 53. driving the block; 54. a rotation limiting device; 55. translating the lead screw; 56. a lead screw block; 57. a horizontal guide bar; 58. vertically moving the cylinder; 59. a vertical guide rod.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

The embodiment of the application discloses screen printing equipment, refer to fig. 1, including placing in frame 1 on ground, frame 1 installs and is horizontally drive belt 2, and frame 1 sets up corresponding steel roller and motor so that drive belt 2 carries out the transmission, and each solar wafer all places and send on drive belt 2. Frame 1 both sides upper surface equal integrated into one piece has and is vertical frame plate 36, two frame plate 36 close side bottom department can dismantle through the bolt and be connected with and be horizontally silk screen 3, silk screen 3 can be for weaving the silk screen version that forms by the metal silk thread, there is slight interval silk screen 3 lower surface and battery upper surface, install directly over silk screen 3 and press tightly in silk screen 3 so that silk screen 3 can and the battery between be line contact's

scraper

4, 4 length direction of scraper and 2 length direction of drive belt are unanimous. The scraper 4 moves along the width direction of the belt 2, so that the metal slurry on the screen 3 can be moved by the scraper 4 and is printed into a plurality of electrodes on the upper surface of the battery through the gaps on the screen 3, and the length direction of the electrodes is consistent with the length direction of the scraper 4.

Referring to fig. 1 and 2, a switching column 5 is installed on a scraper 4, a column moving device 51 capable of driving the switching column 5 to move to adjust the position of the scraper 4 is installed on a frame plate 36, the column moving device 51 includes a translation lead screw 55 rotatably connected to the upper portion of the frame plate 36, the length direction of the translation lead screw 55 is consistent with the width direction of a transmission belt 2, a lead screw motor 46 is fixedly connected to the outer surface of the frame plate 36, an output shaft of the lead screw motor 46 is coaxially and fixedly connected to the translation lead screw 55, the translation lead screw 55 is penetrated and threadedly connected with a lead screw block 56, a horizontal guide rod 57 is fixedly connected to the upper portion of the frame plate 36, the length direction of the horizontal guide rod 57 is consistent with the length direction of the translation lead screw 55, the lead screw block 56 is sleeved and slidably connected to the horizontal guide rod 57 along the length direction of the translation lead screw 55, a vertical moving cylinder 58 with the vertical moving cylinder block 56, the bottom end of the power rod of the vertical moving cylinder 58 is fixedly connected with a cylinder block 41, the cylinder block 41 is consistent with the length direction of the scraper 4, a vertical guide rod 59 is fixedly connected to the cylinder block 56, the vertical moving cylinder block 41 is rotatably connected to the switching column 5, and the vertical moving cylinder 4 can synchronously move the scraper and move.

Referring to fig. 2, cylinder block 41 length direction both ends all set up one and switch post 5, and the axis of rotation that switches post 5 is unanimous with cylinder block 41 length direction, switches post 5 axis of rotation and is self axis, and the same connecting rod 32 of two coaxial fixedly connected with that switch post 5, connecting rod 32 rotate to be connected in inside cylinder block 41. Switch post 5 and set up two scrapers 4 around self axis, every scraper 4 all includes fixed connection in two mounting panels 33 that switch 5 circumference outer walls of post, mounting panel 33 length direction is unanimous with switching 5 axis directions of post, the straight line that mounting panel 33 width direction place is located the center department that switches post 5, mounting panel 33 length direction one end is closely overlapped along self length direction and is equipped with dismantlement piece 34, the one end that dismantlement piece 34 exposes mounting panel 33 is passed through the screw and is dismantled and connect in mounting panel 33 length direction one end terminal surface, dismantle piece 34 bottom contact in silk screen 3, the state when every dismantlement piece 34 contacts in the silk screen all is the slope, and every dismantlement piece 34 is when switching 5 horizontal radial displacement along, the high point one end of dismantlement piece 34 is complied with self moving direction and is located the low point one end of dismantling piece 34, make the slope bottom surface of dismantling piece 34 can be more abundant promote the antedisplacement with metal slurry. One end of the two dismounting pieces 34 exposed out of the mounting plate 33 is fixedly connected with the same connecting rod 32 so as to synchronously mount or dismount the two dismounting pieces 34.

Referring to fig. 2, each switching post 5 is provided with a rotation limiting device 54 for enabling the switching post 5 to tend to rotate on one side of the high scraper 4, the rotation limiting device 54 comprises a driving block 53 fixedly connected to the periphery of the bottom of the end surface of the switching post 5, the distance between the driving block 53 and the two mounting plates 33 is consistent, an end surface rod 37 is integrally formed on the upper portion of the end surface of one end of the cylinder block 41 in the length direction, the axes of the end surface rod 37 and the switching post 5 are located in the same vertical plane, an extension spring 42 is detachably connected between the end surface rod 37 and the driving block 53, hooks at two ends of the extension spring 42 are respectively hooked on the end surface rod 37 and the driving block 53, when the two scrapers 4 are at the same height, the two detaching pieces 34 are uniformly contacted with the silk screen, the driving block 53, the center of the end surface of the switching post 5 and the end surface rod 37 are located on the same vertical line, namely, the driving block 53 is in an intermediate state at this time, and when the driving block 53 is not located in the intermediate state, the extension spring 42 drives the switching post 5 to rotate so that the high scraper 4 tends to move upwards.

Referring to fig. 2 and 3, the rotation limiting device 54 further includes two fixed blocks 43 slidably connected to the cylinder block 41 around the axis of the switching column 5, the fixed blocks 43 are slidably connected to one end of the cylinder block 41, the cross section of one end of each fixed block 41 is T-shaped, and the cylinder block 41 is provided with an opening corresponding to each fixed block 43 for the fixed blocks 43 to slide out and into the cylinder block 41. The distance between the central point of the end face of the switching column 5 and the two fixed blocks 43 is consistent, each fixed block 43 is in threaded connection with a positioning bolt 48, the positioning bolt 48 moves along the axis direction of the switching column 5, the cylinder block 41 is fixedly connected with an inner rack 31 corresponding to the inside of each fixed block 43, the inner rack 31 is in an arc shape, the circle center of the inner rack is the center of the end face of the switching column 5, the fixed blocks 43 are connected to the circumferential side face of the inner rack 31 in a sliding mode, one end, located in each fixed block 43, of each positioning bolt 48 is rotatably connected with a bolt rack 49, the bolt racks 49 are connected to the fixed blocks 43 in a sliding mode along the moving direction of the positioning bolts 48, and the bolt racks 49 can be meshed with the inner racks 31, so that the fixed blocks 43 are fixed in position and do not move any more.

Referring to fig. 2 and 3, the rotation limiting device 54 further includes two rotation limiting blocks 44 fixedly connected to the outer circumferential wall of the switching column 5, the two rotation limiting blocks 44 are located between the two fixed blocks 43, the two rotation limiting blocks 44 can be abutted to the two fixed blocks 43 in a one-to-one correspondence manner, and the distance between the two rotation limiting blocks 44 and the driving block 53 is consistent, so that when the extension spring 42 drives the switching column 5 to rotate and one scraper 4 moves to a proper position, one rotation limiting block 44 can be abutted to the corresponding fixed block 43, so that the switching column 5 can not rotate any more, and the pressure applied to the screen by the detaching piece 34 is not easy to be too large.

Referring to fig. 1, the frame plate 36 is integrally formed with two groove bars 38, each groove bar 38 is internally and rotatably connected with a supporting plate screw 45, the length direction of the supporting plate screw 45 is consistent with the width direction of the driving belt 2, the thread directions of two sides of the central point of the supporting plate screw 45 are opposite, the end portions of the groove bars 38 are fixedly connected with output shafts coaxially and fixedly connected to a screw motor 47 of the supporting plate screw 45, each groove bar 38 is slidably connected with a set of two supporting plates 52, the supporting plates 52 move along the length direction of the supporting plate screw 45, the distance between the central points of the two supporting plates 52 in the same group and the central point of the supporting plate screw 45 is equal, and the supporting plates 52 are sleeved and threadedly connected to the supporting plate screw 45, so that the two supporting plates 52 in the same group move synchronously, and the distance between the two supporting plates 52 in the same group can be adjusted.

When the electrode printing of a battery is completed, the driving block 53 contacts with the abutting plate 52, so that the switching post 5 is forced to rotate, the detaching piece 34 originally contacting with the screen 3 rotates and moves upwards, when the driving block 53 just passes through the middle state, the switching post 5 stops moving forwards, at this moment, the stretching spring 42 enables the switching post 5 to continue rotating, the detaching piece 34 originally far away from the screen 3 contacts with the screen, so that when the switching post 5 resets and moves, the detaching piece 34 newly contacting with the screen 3 can drive the metal paste to move, and the electrode printing work of a new battery starts.

The implementation principle of the screen printing equipment provided by the embodiment of the application is as follows: when switching post 5 moves along drive belt 2 width direction each time, all there is a corresponding one in two scrapers 4 and can sticis in the printing of silk screen 3 electrode for the translation of switching post 5 each time can carry out surperficial electrode printing to a battery.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a screen printing equipment, includes frame (1), locate frame (1) and drive belt (2) of battery piece antedisplacement, locate directly over drive belt (2) and by silk screen (3) of tensioning, locate directly over silk screen (3) and be the state laminating of slope in silk screen (3) so that silk screen (3) push down scraper (4) of laminating in the battery piece, its characterized in that: scraper (4) set up two, and two scrapers (4) are connected with same pivoted switching post (5), and frame (1) is equipped with and drives the post mobile device (51) that switches post (5) and remove in order to adjust scraper (4) position, and frame (1) is equipped with two and supports board (52), switches post (5) and is equipped with and is located between two support board (52) and can butt in driving piece (53) of supporting board (52), switches post (5) and is equipped with and makes switching post (5) tend to high scraper (4) one side pivoted rotation limiting device (54).

2. A screen printing apparatus according to claim 1, wherein: post mobile device (51) is including rotating the translation lead screw (55) of connecting in frame (1), locate frame (1) and drive translation lead screw (55) pivoted lead screw motor (46), threaded connection is in lead screw piece (56) of translation lead screw (55), locate frame (1) and supply lead screw piece (56) along the gliding horizontal guide bar (57) of battery side length direction, the perpendicular cylinder (58) that move of locating lead screw piece (56), locate perpendicular guide bar (59) of lead screw piece (56), connect in perpendicular cylinder (58) power bar that moves and sliding connection in cylinder block (41) of perpendicular guide bar (59), cylinder block (41) moving direction perpendicular to lead screw piece (56) moving direction, switching post (5) rotate to be connected in cylinder block (41).

3. A screen printing apparatus according to claim 2, wherein: the rotation limiting device (54) comprises an extension spring (42) detachably connected to a driving block (53) and a cylinder block (41), two rotation limiting blocks (44) connected to the circumferential outer wall of a switching column (5), and two fixed blocks (43) arranged on the cylinder block (41) and capable of being abutted by the rotation limiting blocks (44), wherein the distance between one end of the extension spring (42) connected with the cylinder block (41) and the axis of the switching column (5) can be smaller than the distance between one end of the extension spring (42) connected with the cylinder block (41) and the driving block (53).

4. A screen printing apparatus according to claim 3, wherein: the fixed block (43) is connected to the cylinder block (41) in a sliding mode around the rotating axis of the switching column (5), and the fixed block (43) is connected with a positioning bolt (48) in a threaded mode, wherein the positioning bolt fixes the position of the fixed block (43).

5. A screen printing apparatus according to claim 4, wherein: the positioning bolt (48) penetrates through the fixing block (43), one end, penetrating through the fixing block (43), of the positioning bolt (48) is rotatably connected with a bolt rack (49), and an inner rack (31) for the bolt rack (49) to be meshed is arranged inside the air cylinder block (41).

6. A screen printing apparatus according to claim 1, wherein: the switching columns (5) are arranged in two, the two switching columns (5) are coaxially and fixedly connected with connecting rods (32), and each switching column (5) corresponds to one set of two abutting plates (52).

7. A screen printing apparatus according to claim 1, wherein: each scraper (4) comprises a mounting plate (33) fixedly connected to the switching column (5) and a dismounting sheet (34) detachably connected to the mounting plate (33) and abutted to the silk screen (3).

8. A screen printing apparatus according to claim 7, wherein: and one end of each of the two disassembling pieces (34) close to each other is provided with a connecting piece (35), and the disassembling pieces (34) are inserted into the mounting plate (33) along the length direction of the disassembling pieces.

9. A screen printing apparatus according to claim 1, wherein: two support plate (52) sliding connection is in frame (1), and frame (1) rotates to be connected with and drives two support plate (52) and be close to mutually or keep away from support plate screw rod (45), and frame (1) is equipped with and drives support plate screw rod (45) pivoted screw rod motor (47).

10. A screen printing apparatus according to claim 9, wherein: the thread directions of the two sides of the center point of the abutting plate screw rod (45) are opposite, and the two abutting plates (52) are positioned at the equal distance of the two sides of the center point of the abutting plate screw rod (45).