Silicon wafer printing equipment accurate in positioning

Abstract

The invention discloses silicon wafer printing equipment capable of accurately positioning, which belongs to the technical field of screen printing machines and comprises a base table and a screen printing table. A screen printing table is fixedly installed on the front side of the base table, and a screen printing machine is installed on the rear side of the base table. A screen frame fixing module is mounted on the screen printing machine; the conveying mechanism and the positioning mechanism are installed on the base table and the screen printing table. The conveying mechanism comprises a feeding conveying belt, a dust removal module, a material moving module and a discharging module, the feeding conveying belt is installed on the front side of the base table, and the dust removal module is installed on the right side of the base table; a material moving module is mounted on the base station; a discharging module is installed on the rear side of the base table. By means of the mode, the feeding conveying belt conveys silicon wafers, the dust removal module removes dust on the silicon wafers, the material moving module moves the silicon wafers on the silk-screen printing table to the discharging module, meanwhile, the material moving module conveys the silicon wafers on the feeding conveying belt to the silk-screen printing table, continuous silk-screen printing is achieved, and the silk-screen printing efficiency is improved; the receding module lifts the positioning module, and the positioning module accurately positions the silicon wafer on the screen printing table.

Description

Technical Field

[0001] The invention relates to the technical field of screen printers, and in particular to a silicon wafer printing device with precise positioning. Background Art

[0002] In the silicon wafer production process, one of the key steps is to create fine circuits on the silicon wafer that can export photogenerated electrons out of the battery; this process requires the fine circuits to be printed on the silicon wafer by silk screen printing.

[0003] For example, Chinese patent CN221161814U discloses a photovoltaic silicon wafer printing device, which includes a fixing frame for fixing a screen printing frame, a lifting mechanism drives the screen printing plate and the screen frame to move vertically, and a suction cup is used to fix the silicon wafer; and then screen printing is performed by a scraper.

[0004] However, it is difficult for this device to achieve automatic and continuous loading and unloading while ensuring accurate positioning of the silicon wafer, which affects the overall screen printing efficiency.

[0005] Based on this, the present invention designs a silicon wafer printing device with precise positioning to solve the above problems. Summary of the invention

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides a silicon wafer printing device with precise positioning.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: A silicon wafer printing device with precise positioning, comprising a base and a screen printing platform, a screen printing machine, a screen frame fixing module, a conveying mechanism and a positioning mechanism; A screen printing platform for supporting silicon wafers is fixedly installed on the front side of the base, and a screen printing machine is installed on the rear side of the base; a screen frame fixing module for supporting the screen frame is installed on the screen printing machine; a conveying mechanism and a positioning mechanism are installed on the base and the screen printing platform; The conveying mechanism includes a loading conveyor belt, a dust removal module, a material moving module and a material unloading module. A loading conveyor belt for conveying silicon wafers is installed on the front side of the base, and a dust removal module is installed on the right side of the base; a material moving module is installed on the lower side of the base at the screen printing table; and a material unloading module is installed on the rear side of the base.

[0008] Furthermore, the dust removal module includes a dust removal cylinder, a dust removal support frame and a dust removal plate. The dust removal cylinder is fixedly installed on the right side of the base, the dust removal support frame is fixedly installed on the output end of the dust removal cylinder, and the dust removal plate is fixedly installed on the lower side of the dust removal support frame.

[0009] Furthermore, the material shifting module includes a material shifting linear slide, a first give-way cylinder, a movable frame and a material supporting rod. The material shifting linear slide is fixedly mounted on the base, the movable end of the material shifting linear slide is fixedly mounted with the first give-way cylinder, the output end of the first give-way cylinder is fixedly mounted with the movable frame, and the material supporting rod for supporting the silicon wafer is symmetrically fixedly mounted on the movable frame; material shifting grooves are symmetrically opened on the silk screen printing table; the material supporting rod slides within the material shifting groove in a limited position.

[0010] Furthermore, the unloading module includes an unloading conveyor belt, a roller conveyor, an unloading linear module, a second give-way cylinder and an unloading support platform. The unloading conveyor belt is fixedly installed on the rear side of the base; a roller conveyor is fixedly installed on the base on the left side of the unloading conveyor belt, and the front side of the roller conveyor is aligned with the unloading conveyor belt; a unloading linear module is fixedly installed on the base on the lower middle side of the roller conveyor; a second give-way cylinder is fixedly installed on the moving end of the unloading linear module, and a unloading support platform for supporting silicon wafers is fixedly installed on the output end of the second give-way cylinder.

[0011] Furthermore, the positioning mechanism includes a yielding module, a positioning module and a vacuum adsorption module; the yielding module is installed on the base at the lower side of the screen printing table, the moving end of the yielding module is installed with a positioning module for positioning the silicon wafer, and the screen printing table is installed with a vacuum adsorption module.

[0012] Furthermore, the yielding module includes a third yielding cylinder and a yielding support plate. The third yielding cylinder is fixedly installed on the base at the lower side of the screen printing table, and the yielding support plate is fixedly installed on the output end of the third yielding cylinder.

[0013] Furthermore, the positioning motor, transmission assembly, rotating disk, connecting rod and positioning block are characterized in that the positioning motor is fixedly installed on the lower side of the giving way support plate; the transmission assembly is installed on the giving way support plate; the motor output end of the positioning motor is fixedly connected to the power input end of the transmission assembly; a rotating disk is fixedly installed on the power output end and the power input end of the transmission assembly respectively; one end of the connecting rod is rotatably installed on the edge of the rotating disk; a plurality of connecting rods are provided, and the plurality of connecting rods are evenly distributed in a circular array with equal intervals; a positioning block is fixedly installed on the other end of the connecting rod; a plurality of linear slide grooves are opened in a circular array on the silk screen printing table, and the positioning block slides within the linear slide groove within a limited position.

[0014] Furthermore, the vacuum adsorption module includes a vacuum suction nozzle, a plurality of adsorption holes are evenly spaced in the middle of the screen printing table, and a vacuum suction nozzle is fixedly installed at the bottom of the adsorption hole; the bottom of the vacuum suction nozzle is connected to the vacuum pump through a hose.

[0015] Furthermore, the screen printing machine includes a screen printing linear module, a movable table, a screen printing linear slide, a screen printing mounting plate, a scraper pneumatic slide, a scraper, a printing pneumatic slide and a printing plate. The screen printing linear module is fixedly installed on the rear side of the base, the movable end of the screen printing linear module is fixedly installed with the movable table, the screen printing linear slide is fixedly installed on the movable table, and the output end of the screen printing linear slide is fixedly installed with the screen printing mounting plate; the scraper pneumatic slide and the printing pneumatic slide are fixedly installed on the screen printing mounting plate; the output end of the scraper pneumatic slide is fixedly installed with the scraper, and the output end of the printing pneumatic slide is fixedly installed with the printing plate.

[0016] Furthermore, the net frame fixing module includes a support rod, a moving block, a support arm, a net frame clamp and a locking module. The support rods are symmetrically fixedly installed on both sides of the moving platform. A moving groove is opened in the support rod. The moving block is slidingly installed in the moving groove. The moving block is fixedly connected to the rear end of the support arm, and the net frame clamp is fixedly installed on the front side of the support arm; locking modules for locking the net frame and the moving block are respectively installed on the net frame clamp and the support rod.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The loading conveyor belt conveys silicon wafers, and during this process, the dust removal module removes dust from the silicon wafers until the silicon wafers move to the position aligned with the material transfer module, and the material transfer module moves the silicon wafers that have completed screen printing on the screen printing table to the unloading module, and unloads the material through the unloading module. At the same time, the material transfer module delivers the silicon wafers on the loading conveyor belt to the screen printing table; continuous screen printing is achieved, and the screen printing efficiency is improved; 2. Lift the positioning module by the yield module, so that the end of the positioning module moves to the upper side of the screen printing table, accurately position the silicon wafer on the screen printing table through the positioning module, and then keep the silicon wafer stable through the vacuum adsorption module. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 A three-dimensional silicon wafer printing device with precise positioning according to the present invention Figure 1 ; Figure 2 It is a front view of a silicon wafer printing device with precise positioning according to the present invention; Figure 3 A three-dimensional silicon wafer printing device with precise positioning according to the present invention Figure 2 ; Figure 4is a schematic diagram of a support rod and its connection structure; Figure 5 It is a schematic diagram of the dust removal support frame and its connection structure; Figure 6 It is a schematic diagram of the screen printing station and its connection structure; Figure 7 for Figure 6 Enlarged view of point A in the middle; Figure 8 It is a schematic diagram of the supporting rod and its connection structure; Fig. 9 This is a schematic diagram of the positioning block and its connection structure.

[0020] The numbers in the figure represent: 1. Base; 2. Screen printing table; 3. Screen printing machine; 31. Screen printing linear module; 32. Moving table; 33. Screen printing linear slide; 34. Screen printing mounting plate; 35. Scraper pneumatic slide; 36. Scraper; 37. Printing pneumatic slide; 38. Printing plate; 4. Screen frame fixing module; 41. Support rod; 42. Moving slot; 43. Moving block; 44. Support arm; 45. Screen frame clamp; 46. Locking module; 461. Locking screw; 462. Knob; 463. Stop block; 5. Conveying mechanism; 51. Feeding conveyor belt; 52. Dust removal module; 521. Dust removal cylinder; 522. Dust removal support frame; 523. Dust removal plate; 53. Material transfer module; 531. Material transfer linear Linear slide table; 532, first make way cylinder; 533, moving frame; 534, supporting rod; 535, material transfer trough; 54, unloading module; 541, unloading conveyor belt; 542, roller conveyor; 543, unloading linear module; 544, second make way cylinder; 545, unloading support table; 6, positioning mechanism; 61, make way module; 611, third make way cylinder; 612, make way support plate; 62, positioning module; 621, positioning motor; 622, transmission assembly; 623, rotating disk; 624, connecting rod; 625, linear slide; 626, positioning block; 63, vacuum adsorption module; 631, adsorption hole; 632, vacuum suction nozzle; 7, silicon wafer. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0023] Embodiment 1: In some embodiments, please refer to the drawings of the specification Figure 1-Figure 3 and Figure 6 , a silicon wafer printing device with precise positioning, comprising a base 1 and a screen printing platform 2; further comprising a screen printing machine 3, a screen frame fixing module 4, a conveying mechanism 5 and a positioning mechanism 6; A screen printing table 2 for supporting a silicon wafer 7 is fixedly mounted on the front side of the base 1, and a screen printing machine 3 is mounted on the rear side of the base 1; a screen frame fixing module 4 for supporting a screen frame is mounted on the screen printing machine 3; a conveying mechanism 5 and a positioning mechanism 6 are mounted on the base 1 and the screen printing table 2; The conveying mechanism 5 includes a loading conveyor belt 51, a dust removal module 52, a material moving module 53 and a material unloading module 54. The loading conveyor belt 51 for conveying the silicon wafer 7 is installed on the front side of the base 1, and the dust removal module 52 is installed on the right side of the base 1; the material moving module 53 is installed on the lower side of the screen printing table 2 on the base 1; and the material unloading module 54 is installed on the rear side of the base 1; The positioning mechanism 6 includes a yielding module 61, a positioning module 62 and a vacuum adsorption module 63; the yielding module 61 is installed on the base 1 at the lower side of the screen printing table 2, and the positioning module 62 for positioning the silicon wafer 7 is installed at the movable end of the yielding module 61, and the vacuum adsorption module 63 is installed on the screen printing table 2.

[0024] In this embodiment, when the silicon wafer printing device with precise positioning is working normally, the screen frame is installed on the screen frame fixing module 4; in the initial state, the positioning module 62 is located at the lower side of the screen printing table 2 by the yielding module 61 to avoid blocking the silicon wafer 7; the silicon wafer 7 is conveyed by the feeding conveyor belt 51, and the silicon wafer 7 is dusted by the dust removal module 52 during this process, until the silicon wafer 7 moves to the position aligned with the material shifting module 53, and the silicon wafer 7 that has completed silk screen printing on the screen printing table 2 is moved to the unloading module 54 by the material shifting module 53, and the material is unloaded by the unloading module 54, and at the same time, the silicon wafer 7 on the feeding conveyor belt 51 is sent to the screen printing table 2 by the material shifting module 53; the positioning module 62 is lifted by the yielding module 61, so that the end of the positioning module 62 moves to the screen printing table 2 On the upper side, the silicon wafer 7 on the screen printing table 2 is accurately positioned by the positioning module 62, and then the silicon wafer 7 is kept stable by the vacuum adsorption module 63; then the giving way module 61 and the positioning module 62 are reset; paint is added to the screen frame installed on the screen frame fixing module 4; then the screen printing machine 3 drives the screen frame fixing module 4 and the screen frame to move vertically downward until the screen frame on the screen frame fixing module 4 is in close contact with the silicon wafer 7, and the screen printing is completed through the cooperation of the screen printing machine 3 and the screen frame fixing module 4; after the screen printing is completed; the screen printing machine 3 and the screen frame fixing module 4 are reset, and then the material moving module 53 drives the silicon wafer 7 that has completed the screen printing to move to the unloading module 54 again, and at the same time moves the silicon wafer 7 on the feeding conveyor belt 51 to the screen printing table 2; continuous screen printing is realized to improve the efficiency of screen printing.

[0025] Embodiment 2: In some embodiments, Figure 1-Figure 8 As shown, as a preferred embodiment of the present invention, the screen printing machine 3 includes a screen printing linear module 31, a moving table 32, a screen printing linear slide 33, a screen printing mounting plate 34, a scraper pneumatic slide 35, a scraper 36, a printing pneumatic slide 37 and a printing plate 38, the screen printing linear module 31 is fixedly installed on the rear side of the base 1, the moving end of the screen printing linear module 31 is fixedly installed with the moving table 32, the screen printing linear slide 33 is fixedly installed on the moving table 32, and the output end of the screen printing linear slide 33 is fixedly installed with the screen printing mounting plate 34; the scraper pneumatic slide 35 and the printing pneumatic slide 37 are fixedly installed on the screen printing mounting plate 34; the output end of the scraper pneumatic slide 35 is fixedly installed with the scraper 36, and the output end of the printing pneumatic slide 37 is fixedly installed with the printing plate 38; The screen frame fixing module 4 comprises a support rod 41, a moving block 43, a support arm 44, a screen frame clamp 45 and a locking module 46. The support rods 41 are symmetrically fixedly installed on both sides of the moving platform 32. A moving groove 42 is provided in the support rod 41. A moving block 43 is limitedly and slidably installed in the moving groove 42. The moving block 43 is fixedly connected to the rear end of the support arm 44. The screen frame clamp 45 is fixedly installed on the front side of the support arm 44. The locking modules 46 for locking the screen frame and the moving block 43 are respectively installed on the screen frame clamp 45 and the support rod 41. The locking module 46 includes a locking screw 461, a knob 462 and a stopper 463. The locking screw 461 on the support rod 41 is threadedly connected to the side wall of the support rod 41, and the locking screw 461 on the net frame clamp 45 is threadedly connected to the net frame clamp 45. The stopper 463 is fixedly installed at the inner end of the locking screw 461, and the knob 462 is fixedly installed at the outer end of the locking screw 461. The dust removal module 52 includes a dust removal cylinder 521, a dust removal support frame 522 and a dust removal plate 523. The dust removal cylinder 521 is fixedly installed on the right side of the base 1. The dust removal support frame 522 is fixedly installed on the output end of the dust removal cylinder 521. The dust removal plate 523 is fixedly installed on the lower side of the dust removal support frame 522. The material transfer module 53 includes a material transfer linear slide 531, a first clearance cylinder 532, a mobile frame 533 and a support rod 534. The material transfer linear slide 531 is fixedly installed on the base 1, the first clearance cylinder 532 is fixedly installed on the moving end of the material transfer linear slide 531, the output end of the first clearance cylinder 532 is fixedly installed with a mobile frame 533, and the mobile frame 533 is symmetrically fixedly installed with a support rod 534 for supporting the silicon wafer 7; the screen printing table 2 is symmetrically provided with a material transfer groove 535; the support rod 534 is limitedly slid in the material transfer groove 535; The unloading module 54 includes an unloading conveyor belt 541, a roller conveyor 542, an unloading linear module 543, a second make way cylinder 544 and an unloading support platform 545. The unloading conveyor belt 541 is fixedly installed on the rear side of the base 1; a roller conveyor 542 is fixedly installed on the base 1 on the left side of the unloading conveyor belt 541, and the front side of the roller conveyor 542 is aligned with the unloading conveyor belt 541; a unloading linear module 543 is fixedly installed on the base 1 on the lower middle side of the roller conveyor 542; a second make way cylinder 544 is fixedly installed on the moving end of the unloading linear module 543, and an unloading support platform 545 for supporting the silicon wafer 7 is fixedly installed on the output end of the second make way cylinder 544.

[0026] The loading conveyor belt 51 and the unloading conveyor belt 541 are both configured as belt conveyors, which are commercially available mature equipment in the field.

[0027] In this embodiment, when the screen printer 3, the screen frame fixing module 4 and the conveying mechanism 5 are working normally, the feeding conveyor belt 51 drives the silicon wafer 7 to move until the silicon wafer 7 moves to the lower side of the dust removal plate 523; the dust removal cylinder 521 drives the dust removal plate 523 to move vertically downward through the dust removal support frame 522 until the dust removal plate 523 is in contact with the silicon wafer 7; the feeding conveyor belt 51 continues to drive the silicon wafer 7 to move, and wipes the dust on the surface of the silicon wafer 7 through the dust removal plate 523; until the silicon wafer 7 moves to the position aligned with the supporting rod 534; at this time, the first yielding cylinder 532 drives the supporting rod 534 to move vertically through the moving frame 533, and supports the supporting rod 534 through the supporting rod 534. Support the silicon wafer 7 on the feeding conveyor belt 51 and the silicon wafer 7 that has been screen-printed on the screen printing table 2; the material transfer linear slide 531 drives the first give-way cylinder 532 to move horizontally, and the first give-way cylinder 532 drives the silicon wafer 7 to move horizontally through the moving frame 533 and the supporting rod 534, until the silicon wafer 7 to be screen-printed on the feeding conveyor belt 51 moves to the screen printing table 2, and the silicon wafer 7 that has been screen-printed on the screen printing table 2 moves directly to the unloading conveyor belt 541; the first give-way cylinder 532 drives the moving frame 533 and the supporting rod 534 to reset; so that the silicon wafer 7 to be screen-printed is supported by the screen printing table 2, and the silicon wafer 7 that has been screen-printed is supported by the unloading conveyor belt 541; At this time, the positioning module 62 is driven to move by the yielding module 61, so that the upper end of the positioning module 62 moves to a position higher than the upper surface of the screen printing table 2, and the silicon wafer 7 is positioned by the positioning module 62, and then the silicon wafer 7 is sucked tightly by the vacuum adsorption module 63; then the positioning module 62 and the yielding module 61 are reset; at the same time, the silicon wafer 7 that has completed screen printing and has been sent to the unloading conveyor belt 541 is driven by the unloading conveyor belt 541 to move to a group of roller conveyors 542; the second yielding cylinder 544 drives the unloading support platform 545 to move vertically, and the silicon wafer 7 is supported by the unloading support platform 545, and then the unloading linear module 543 drives the silicon wafer 7 to move through the second yielding cylinder 544 and the unloading support platform 545, so that the silicon wafer 7 is moved to the corresponding group of roller conveyors 542, so as to realize lane unloading; The movable block 43 is adjusted to move in the movable slot 42, thereby adjusting the height of the movable block 43, the support arm 44 and the screen frame clamp 45, and then the knob 462 is rotated to adjust the distance between the locking screw 461 and the inner and outer sides of the support rod 41, and the movable block 43 is pressed by the stop block 463 at the end of the locking screw 461; the locking is completed; the screen frame is installed between the screen frame clamps 45; the locking of the screen frame is completed by the cooperation of the locking screw 461, the knob 462 and the stop block 463 on the screen frame clamp 45; the screen frame is directly printed The wire module 31 drives the screen printing linear slide 33 to move vertically through the moving table 32, thereby driving the support rod 41, the moving groove 42, the moving block 43, the support arm 44, the screen frame clamp 45 and the screen frame to move vertically until the screen frame is attached to the silicon wafer 7; the screen printing linear slide 33 drives the screen printing mounting plate 34 and the scraper pneumatic slide 35 and the printing pneumatic slide 37 on the screen printing mounting plate 34 to move horizontally, thereby scraping the paint in the screen frame onto the silicon wafer 7 through the scraper 36 and the printing plate 38 to complete the screen printing.

[0028] Embodiment 3: In some embodiments, Figure 1-Figure 9 As shown, as a preferred embodiment of the present invention, the yielding module 61 includes a third yielding cylinder 611 and a yielding support plate 612, the third yielding cylinder 611 is fixedly installed on the base 1 at the lower side of the screen printing table 2, and the yielding support plate 612 is fixedly installed on the output end of the third yielding cylinder 611; The positioning motor 621, transmission assembly 622, rotating disk 623, connecting rod 624 and positioning block 626 are fixedly installed on the lower side of the yield support plate 612 with the positioning motor 621; the transmission assembly 622 is installed on the yield support plate 612; the motor output end of the positioning motor 621 is fixedly connected to the power input end of the transmission assembly 622; a rotating disk 623 is fixedly installed on the power output end and the power input end of the transmission assembly 622 respectively; one end of the connecting rod 624 is rotatably installed on the edge of the rotating disk 623; a plurality of connecting rods 624 are provided, and the plurality of connecting rods 624 are evenly distributed in a circular array with equal spacing; a positioning block 626 is fixedly installed on the other end of the connecting rod 624; a plurality of linear slide grooves 625 are provided in a circular array on the screen printing table 2, and the positioning block 626 slides within the linear slide groove 625 in a limited position; The transmission assembly 622 is configured as a synchronous belt and synchronous pulley transmission assembly, and the power input end and the power output end of the transmission assembly 622 are both synchronous pulleys; The vacuum adsorption module 63 includes a vacuum suction nozzle 632. A plurality of adsorption holes 631 are evenly spaced in the middle of the screen printing table 2. A vacuum suction nozzle 632 is fixedly installed at the bottom of the adsorption hole 631. The bottom of the vacuum suction nozzle 632 is connected to the vacuum pump through a hose.

[0029] In this embodiment, when the clearance module 61, the positioning module 62 and the vacuum adsorption module 63 work normally, after the silicon wafer 7 to be screen-printed is transferred to the screen printing table 2; the third clearance cylinder 611 drives the clearance support plate 612 to move vertically, thereby driving the positioning motor 621, the transmission assembly 622, the rotating disk 623, the connecting rod 624 and the positioning block 626 on the clearance support plate 612 to move vertically, so that the top of the positioning block 626 moves to a position higher than the upper surface of the screen printing table 2; the positioning motor 621 drives the transmission assembly 622 to move vertically, and the positioning motor 621 drives the transmission assembly 622 to move vertically. The movable rotating disk 623 rotates synchronously, and the rotating disk 623 drives the connecting rod 624 to move, thereby driving the positioning block 626 to move, so that the positioning block 626 moves along the linear slide groove 625 until all the positioning blocks 626 are in contact with the silicon wafer 7; thereby completing the positioning of the silicon wafer 7; then the positioning motor 621 drives the positioning block 626 to reset through the transmission assembly 622, the rotating disk 623 and the connecting rod 624, and the third yielding cylinder 611 drives the yielding support plate 612 to reset, thereby moving the top of the positioning block 626 to a position lower than the upper surface of the screen printing table 2.

[0030] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A silicon wafer printing device with precise positioning, comprising a base (1) and a screen printing table (2), characterized in that: It also includes a screen printing machine (3), a screen frame fixing module (4), a conveying mechanism (5) and a positioning mechanism (6); A screen printing platform (2) for supporting a silicon wafer (7) is fixedly mounted on the front side of the base (1), and a screen printing machine (3) is mounted on the rear side of the base (1); a screen frame fixing module (4) for supporting a screen frame is mounted on the screen printing machine (3); a conveying mechanism (5) and a positioning mechanism (6) are mounted on the base (1) and the screen printing platform (2); The conveying mechanism (5) comprises a loading conveyor belt (51), a dust removal module (52), a material moving module (53) and a material unloading module (54); a loading conveyor belt (51) for conveying silicon wafers (7) is installed on the front side of the base (1); a dust removal module (52) is installed on the right side of the base (1); a material moving module (53) is installed on the base (1) below the screen printing table (2); and a material unloading module (54) is installed on the rear side of the base (1).

2. The silicon wafer printing device with precise positioning according to claim 1, characterized in that: The dust removal module (52) comprises a dust removal cylinder (521), a dust removal support frame (522) and a dust removal plate (523); the dust removal cylinder (521) is fixedly mounted on the right side of the base (1); the dust removal support frame (522) is fixedly mounted on the output end of the dust removal cylinder (521); and the dust removal plate (523) is fixedly mounted on the lower side of the dust removal support frame (522).

3. The silicon wafer printing device with precise positioning according to claim 1, characterized in that: The material transfer module (53) comprises a material transfer linear slide (531), a first clearance cylinder (532), a movable frame (533) and a material support rod (534); the material transfer linear slide (531) is fixedly mounted on the base (1); the first clearance cylinder (532) is fixedly mounted on the movable end of the material transfer linear slide (531); the movable frame (533) is fixedly mounted on the output end of the first clearance cylinder (532); the material support rod (534) for supporting the silicon wafer (7) is symmetrically fixedly mounted on the movable frame (533); material transfer grooves (535) are symmetrically provided on the screen printing table (2); and the material support rod (534) slides within the material transfer groove (535) in a limited position.

4. The silicon wafer printing device with precise positioning according to claim 1, characterized in that: The unloading module (54) comprises an unloading conveyor belt (541), a roller conveyor (542), an unloading linear module (543), a second clearance cylinder (544) and an unloading support platform (545), wherein the unloading conveyor belt (541) is fixedly mounted on the rear side of the base platform (1); a roller conveyor (542) is fixedly mounted on the base platform (1) on the left side of the unloading conveyor belt (541), and the front side of the roller conveyor (542) is aligned with the unloading conveyor belt (541); a unloading linear module (543) is fixedly mounted on the base platform (1) on the lower middle side of the roller conveyor (542); a second clearance cylinder (544) is fixedly mounted on the moving end of the unloading linear module (543), and an unloading support platform (545) for supporting a silicon wafer (7) is fixedly mounted on the output end of the second clearance cylinder (544).

5. The silicon wafer printing device with precise positioning according to claim 1, characterized in that: The positioning mechanism (6) comprises a clearance module (61), a positioning module (62) and a vacuum adsorption module (63); the clearance module (61) is installed on the base platform (1) at the lower side of the screen printing platform (2); the positioning module (62) for positioning the silicon wafer (7) is installed on the movable end of the clearance module (61); and the vacuum adsorption module (63) is installed on the screen printing platform (2).

6. The silicon wafer printing device with precise positioning according to claim 5, characterized in that: The yielding module (61) comprises a third yielding cylinder (611) and a yielding support plate (612); the third yielding cylinder (611) is fixedly mounted on the base (1) at the lower side of the screen printing platform (2); and the yielding support plate (612) is fixedly mounted on the output end of the third yielding cylinder (611).

7. The silicon wafer printing device with precise positioning according to claim 6, characterized in that: The positioning motor (621), the transmission assembly (622), the rotating disk (623), the connecting rod (624) and the positioning block (626) are characterized in that the positioning motor (621) is fixedly mounted on the lower side of the yield support plate (612); the transmission assembly (622) is mounted on the yield support plate (612); the motor output end of the positioning motor (621) is fixedly connected to the power input end of the transmission assembly (622); a rotating disk (623) is fixedly mounted on the power output end and the power input end of the transmission assembly (622); one end of the connecting rod (624) is rotatably mounted on the edge of the rotating disk (623); a plurality of connecting rods (624) are provided, and the plurality of connecting rods (624) are evenly distributed in a circular array at equal intervals; a positioning block (626) is fixedly mounted on the other end of the connecting rod (624); a plurality of linear slide grooves (625) are arranged in a circular array on the screen printing table (2), and the positioning block (626) slides within the linear slide groove (625) in a limited position.

8. The silicon wafer printing device with precise positioning according to claim 5, characterized in that: The vacuum adsorption module (63) comprises a vacuum suction nozzle (632); a plurality of adsorption holes (631) are evenly spaced in the middle of the screen printing platform (2); a vacuum suction nozzle (632) is fixedly mounted at the bottom of the adsorption hole (631); and the bottom of the vacuum suction nozzle (632) is connected to a vacuum pump via a hose.

9. The silicon wafer printing device with precise positioning according to claim 1, characterized in that: The screen printing machine (3) comprises a screen printing linear module (31), a movable table (32), a screen printing linear slide (33), a screen printing mounting plate (34), a scraper pneumatic slide (35), a scraper (36), a printing pneumatic slide (37) and a printing plate (38); the screen printing linear module (31) is fixedly mounted on the rear side of the base (1); the movable end of the screen printing linear module (31) is fixedly mounted on the movable end; the screen printing linear slide (33) is fixedly mounted on the movable table (32); the output end of the screen printing linear slide (33) is fixedly mounted on the screen printing mounting plate (34); the scraper pneumatic slide (35) and the printing pneumatic slide (37) are fixedly mounted on the screen printing mounting plate (34); the output end of the scraper pneumatic slide (35) is fixedly mounted on the scraper (36); the output end of the printing pneumatic slide (37) is fixedly mounted on the printing plate (38).

10. The silicon wafer printing device with precise positioning according to claim 9, characterized in that: The screen frame fixing module (4) comprises a support rod (41), a moving block (43), a support arm (44), a screen frame clamp (45) and a locking module (46); the support rods (41) are symmetrically fixedly mounted on both sides of the moving platform (32); a moving groove (42) is provided in the support rod (41); a moving block (43) is slidably mounted in the moving groove (42); the moving block (43) is fixedly connected to the rear end of the support arm (44); the screen frame clamp (45) is fixedly mounted on the front side of the support arm (44); and locking modules (46) for locking the screen frame and the moving block (43) are respectively mounted on the screen frame clamp (45) and the support rod (41).

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