Printing system

Abstract

The utility model provides a printing system, and relates to the technical field of automatic control. The printing system can comprise a sheet feeding mechanism, a six-turntable mechanism, a printing mechanism and a sheet discharging mechanism. The sheet feeding mechanism is used for conveying four parallel target objects at the same time. The six-rotary-table mechanism is located on one side of the sheet feeding mechanism and comprises six working stations which are spaced by 60 degrees, and the position close to the sheet feeding mechanism is a first working station. And after receiving the four target objects at the first working position, the six-turntable mechanism rotates to the fourth working position and then is output by the sheet discharging mechanism. The first printing mechanism located at the second working position prints two spaced target objects, and the second printing mechanism arranged at the third working position prints the other two spaced target objects. According to the utility model, four targets are printed simultaneously through the six rotary table mechanisms, so that the printing efficiency is improved, and the production efficiency of solar cells is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic control, in particular to a printing system. Background Art

[0002] The existing printers for solar cell screen printing lines generally use four-table turntables to print one silicon wafer at a time. In the industry, most of the solar cell printing processes such as BC, PERC, and Topcon use four-table printers. With the rapid development of the photovoltaic industry, the need to improve production efficiency and the urgent need to reduce costs and increase efficiency have put forward faster requirements for printers. The existing printer structure has a bottleneck in improving CT (a cycle time for printing silicon wafers). If a faster printer is not developed to meet market demand, the core competitiveness of printing equipment in the industry will inevitably be greatly reduced, which will affect the market share of printing equipment. Utility Model Content

[0003] An object of the first aspect of the utility model is to provide a printing system to solve the problem of low efficiency of printing presses in the prior art.

[0004] Another object of the first aspect of the utility model is to solve the problem of large space occupied by printing presses in the prior art.

[0005] In particular, the utility model provides a printing system, including a film feeding mechanism, a six-turntable mechanism, a printing mechanism and a film discharging mechanism;

[0006] The film feeding mechanism is used to simultaneously convey four parallel target objects;

[0007] The six-turntable mechanism is located at one side of the film feeding mechanism, and the six-turntable mechanism includes six working positions spaced 60 degrees apart from each other, and the first working position is close to the film feeding mechanism; after the six-turntable mechanism receives the four targets at the first working position, it rotates to reach the second working position, the third working position and the fourth working position in sequence, and then is output by the film discharging mechanism located at one side of the fourth working position;

[0008] The printing mechanism includes a first printing mechanism arranged at the second working position and a second printing mechanism arranged at the third working position; the first printing mechanism is used for printing two of the spaced target objects, and the second printing mechanism is used for printing the other two spaced target objects.

[0009] Optionally, the first printing mechanism includes two printing units arranged in parallel; the second printing mechanism includes two printing units arranged in parallel.

[0010] Optionally, the positions of the two printing units located at the second working position correspond to the positions of two of the target objects arranged at intervals and rotated to the second working position;

[0011] The positions of the two printing units located at the third working position correspond to the positions of the other two target objects that are arranged at intervals and rotated to the third working position.

[0012] Optionally, two calibration devices are further included, and the two calibration devices are respectively located above the second working position and the third working position, each of the calibration devices includes a base plate and two calibration mechanisms located above the base plate, and each of the calibration mechanisms corresponds to one of the printing units to correspond the printing unit with the position of the target object.

[0013] Optionally, a lifting assembly is further included, and two lifting assemblies are arranged at each calibration device, and each lifting assembly is connected to the base plate to drive the base plate to move up and down relative to the six-turntable mechanism.

[0014] Optionally, each of the lifting assemblies comprises:

[0015] Motor;

[0016] A driving module, disposed below the motor and connected to an output end of the motor; and

[0017] The support seat is arranged at the driving module so as to perform linear reciprocating motion under the drive of the driving module.

[0018] Optionally, the support seat comprises:

[0019] A first plate connected to the driving module to reciprocate under the driving of the driving module;

[0020] A second plate connected to the first plate, the second plate is used to support the bottom plate so that the bottom plate reciprocates following the support seat.

[0021] Optionally, a visual module is further included, which is arranged at the first work position to capture the position of each target object at the first work position and feed back the position of the corresponding target object to the corresponding calibration mechanism.

[0022] Optionally, the six-turntable mechanism comprises:

[0023] frame;

[0024] Driving mechanism;

[0025] a support column rotatably connected to the frame, wherein the support column rotates relative to the frame under the drive of the driving mechanism; and

[0026] A support platform is connected to the support column to rotate with the support column; the support platform includes six support units, each support unit corresponds to one of the working positions; and the size of each support unit matches the size of the film feeding mechanism so that the support unit can support four targets at the same time.

[0027] Optionally, the film feeding mechanism comprises a first film feeding assembly, a second film feeding assembly, a third film feeding assembly and a fourth film feeding assembly arranged in parallel in a direction perpendicular to the direction in which the target moves; the first film feeding assembly, the second film feeding assembly, the third film feeding assembly and the fourth film feeding assembly each comprise at least one film feeding unit arranged in parallel along the direction in which the target moves;

[0028] The sheet discharging mechanism comprises a first sheet discharging assembly, a second sheet discharging assembly, a third sheet discharging assembly and a fourth sheet discharging assembly arranged in parallel in a direction perpendicular to the direction in which the target moves; the first sheet discharging assembly, the second sheet discharging assembly, the third sheet discharging assembly and the fourth sheet discharging assembly each comprise at least one sheet discharging unit arranged in parallel along the direction in which the target moves;

[0029] Wherein, the film input unit and the film output unit have the same structure.

[0030] The printing system of this solution may include a film feeding mechanism, a six-turntable mechanism, a printing mechanism and a film discharging mechanism, wherein the film feeding mechanism can simultaneously transport four parallel targets. By transporting the four targets to the six-turntable mechanism, the six-turntable mechanism then transports the four targets to the second working position, prints two of the targets at the second working position, and then rotates to the third working position to print the other two targets, so that the four targets can be printed at the same time, the printing efficiency is improved, and then the production efficiency of solar cells is improved.

[0031] The six-turntable mechanism of this solution has a first printing mechanism at the second working position and a second printing mechanism at the third working position to print four silicon wafers respectively. While meeting the printing needs of four silicon wafers, it also avoids the problem of placing four printers at the same working position resulting in a large space occupation.

[0032] In this solution, calibration devices are arranged at both the first printing mechanism and the second printing mechanism, and two calibration mechanisms are arranged at each calibration device, so that each printing unit corresponds to a calibration mechanism, ensuring that each printing unit is aligned with the corresponding target object under the calibration of the corresponding calibration mechanism, thereby improving the printing quality.

[0033] Based on the detailed description of the specific embodiments of the present invention in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other purposes, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0035] Figure 1 is a schematic structural diagram of a printing system according to a specific embodiment of the utility model;

[0036] Figure 2 is a schematic structural diagram of a calibration device for a printing system according to a specific embodiment of the utility model;

[0037] Figure 3 It is a top view of a six-turntable mechanism of a printing system according to a specific embodiment of the utility model;

[0038] Figure 4 It is a side view of a six-turntable mechanism of a printing system according to a specific embodiment of the utility model;

[0039] Figure 5 is a schematic three-dimensional diagram of a lifting assembly of a printing system according to a specific embodiment of the utility model;

[0040] Figure 6 is a schematic side view of a lifting assembly of a printing system according to a specific embodiment of the utility model

[0041] Figure 7 A schematic structural diagram of a visual module of a printing system according to a specific embodiment of the utility model;

[0042] Figure 8 A schematic structural diagram of a film feeding unit of a printing system according to a specific embodiment of the utility model.

[0043] Description of reference numerals:

[0044] Printing system - 100;

[0045] Film feeding mechanism-200; first film feeding assembly-210; second film feeding assembly-220; third film feeding assembly-230; fourth film feeding assembly-240; film feeding unit-201; driving mechanism-202; pulley-203; belt-204;

[0046] Six-turntable mechanism-300; first working position-310; second working position-320; third working position-330; fourth working position-340; frame-350; support table-360; support unit-361; support column-370;

[0047] Printing mechanism-400; first printing mechanism-410; printing unit-411; second printing mechanism-420; printing unit-421;

[0048] Film discharging mechanism-500; first film discharging assembly-510; second film discharging assembly-520; third film discharging assembly-530; fourth film discharging assembly-540; film discharging unit-501;

[0049] Calibration device-600; base plate-610; calibration mechanism-620;

[0050] Lifting assembly-700; motor-710; driving module-720; support base-730; first plate-731; second plate-732;

[0051] Vision module-800; Camera assembly-810. DETAILED DESCRIPTION

[0052] In the description of this embodiment, it should be understood that the terms "length", "width", "height", "up", "down", "left", "right", "vertical", "horizontal", "bottom", "inside" and "outside" etc. indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0053] As a specific embodiment of the present invention, Figure 1 and Figure 3 As shown, this embodiment provides a printing system 100, which may include a film feed mechanism 200, a six-turntable mechanism 300, a printing mechanism 400 and a film discharge mechanism 500. The film feed mechanism 200 is used to simultaneously transport four parallel target objects. The six-turntable mechanism 300 is located on one side of the film feed mechanism 200. The six-turntable mechanism 300 includes six workstations spaced 60 degrees apart from each other, and the first workstation 310 is located near the film feed mechanism 200. The film feed mechanism 200 receives four target objects at the first workstation 310, and after rotating to the second workstation 320, the third workstation 330 and the fourth workstation 340 in turn, the target objects are output by the film discharge mechanism 500 located on the side of the fourth workstation 340. The printing mechanism 400 may include a first printing mechanism 410 disposed at the second workstation 320 and a second printing mechanism 420 disposed at the third workstation 330. The first printing mechanism 410 is used for printing two of the spaced objects, and the second printing mechanism 420 is used for printing the other two spaced objects.

[0054] The printing system 100 of this embodiment may include a film feeding mechanism 200, a six-turntable mechanism 300, a printing mechanism 400, and a film discharging mechanism 500. The film feeding mechanism 200 can simultaneously transport four parallel target objects, and the target objects of this embodiment may be silicon wafers. By transporting the four target objects to the six-turntable mechanism 300, the six-turntable mechanism 300 then transports the four target objects to the second working position 320, and printing two of the silicon wafers at the second working position 320, and then rotating to the third working position 330 to print the other two silicon wafers, four silicon wafers can be printed at the same time, thereby improving the printing efficiency, and thus improving the production efficiency of solar cells.

[0055] In addition, the six-turntable mechanism 300 of the present embodiment is provided with a first printing mechanism 410 at the second working position 320, and a second printing mechanism 420 at the third working position 330, so as to print four silicon wafers respectively. While satisfying the printing requirements of four silicon wafers, it also avoids the problem of placing four printers at the same working position resulting in a large space occupation.

[0056] As a specific embodiment of the present invention, the first printing mechanism 410 of the present embodiment may include two printing units 411 arranged in parallel. The second printing mechanism 420 may include two printing units 421 arranged in parallel.

[0057] Specifically, in this embodiment, two printing units 411 are set at the second working position 320, and two printing units 421 are set at the third working position 330. While reducing the occupied area, each printing unit can print one of the target objects separately, thereby improving the printing quality.

[0058] As a specific embodiment of the present invention, Figure 1 and Figure 2 As shown, the printing system 100 of this embodiment may also include two calibration devices 600, and the two calibration devices 600 are respectively located above the second working position 320 and the third working position 330. Each calibration device 600 may include a base plate 610 and two calibration mechanisms 620 located above the base plate 610. Each calibration mechanism 620 corresponds to one of the printing units 411, 421 to correspond the printing units 411, 421 to the position of the target object.

[0059] Specifically, the specific structure of the printing units 411 and 421 of this embodiment can be any screen printing machine in the prior art that can meet the requirements of screen printing on the target object in this embodiment, and its specific structure is not limited here.

[0060] Specifically, in this embodiment, a calibration device 600 is provided at both the first printing mechanism 410 and the second printing mechanism 420, and two calibration mechanisms 620 are provided at each calibration device 600, so that each printing unit 411, 421 corresponds to a calibration mechanism 620, ensuring that each printing unit 411, 421 is aligned with the corresponding target object under the calibration of the corresponding calibration mechanism 620, thereby improving the printing quality.

[0061] Specifically, the calibration device 600 of this embodiment can adjust the printing units 411 and 421 in two mutually perpendicular directions on the horizontal plane, and can also adjust the angles of the printing units 411 and 421. The calibration device 600 can align the entire printing units 411 and 421 with the silicon wafer, thereby making subsequent screen printing more accurate.

[0062] Specifically, the calibration mechanism 620 in this embodiment may be a mechanism in the prior art that can adjust the displacement in two mutually perpendicular directions on a horizontal plane and adjust the angle. The specific structure of the calibration mechanism 620 is not limited here.

[0063] As a specific embodiment of the present invention, Figure 1 , Figure 3 and Figure 4 As shown, the six-turntable mechanism 300 of this embodiment may include a frame 350, a driving mechanism (not shown in the figure), a support column 370 and a support platform 360. Among them, the support column is rotatably connected to the frame 350, and the support column rotates relative to the frame 350 under the drive of the driving mechanism. The support platform 360 is connected to the support column to rotate with the support column. The support platform 360 may include six support units 361, each support unit 361 corresponds to one of the working positions. And the size of each support unit 361 matches the size of the film feeding mechanism 200 so that the support unit 361 can support four targets at the same time.

[0064] Specifically, the six-turntable mechanism 300 of this embodiment may include six supporting units 361, which can improve the utilization rate of the occupied area as much as possible while meeting the production needs, and have higher efficiency on the same occupied area.

[0065] Specifically, in this embodiment, the six support units 361 have the same structure, and the angle between their midlines is 60 degrees. When the target object is placed on one of the support units 361, the driving mechanism drives the support column and the support platform 360 to rotate to change the position of the target object.

[0066] As a specific embodiment of the present invention, the positions of the two printing units 411 located at the second working position 320 in this embodiment correspond to the positions of two target objects that are arranged at intervals and rotated to the second working position 320 .

[0067] The positions of the two printing units 421 located at the third working position 330 correspond to the positions of the other two target objects that are rotated to the third working position 330 and arranged at intervals.

[0068] Specifically, the structures of the printing units 411 and 421 at different working positions of this embodiment are the same, but each printing unit 411 and 421 needs to correspond to the corresponding target object. Since the four targets at each support unit 361 are arranged side by side, and it is necessary to print two of the targets arranged at intervals before printing the other two targets. The printing unit 411 at the second working position 320 corresponds to the two targets at this position, and the printing unit 421 at the third working position corresponds to the two targets at the second position, so as to improve the printing efficiency while saving the occupied area.

[0069] As a specific embodiment of the present invention, Figure 1 , Figure 5 and Figure 6 As shown, the printing system 100 of this embodiment may further include a lifting assembly 700 , two lifting assemblies 700 are disposed at each calibration device 600 , and each lifting assembly 700 is connected to the bottom plate 610 to drive the bottom plate 610 to move up and down relative to the six-turntable mechanism 300 .

[0070] Specifically, in this embodiment, the calibration device 600 and the printing mechanism 400 are driven to move up and down by the lifting assembly 700, so that when the six-turntable mechanism 300 moves to a certain working position, the calibration device 600 and the printing mechanism 400 can be lowered to a suitable position, and then the target objects located at the second working position 320 and the third working position 330 can be printed. After printing is completed, the calibration device 600 and the printing mechanism 400 are raised to leave a certain distance for the six-turntable to rotate, so as to avoid mutual interference between the mechanisms.

[0071] As a specific embodiment of the utility model, each lifting assembly 700 of this embodiment may include a motor 710, a driving module 720 and a support seat 730. The motor 710 is arranged above the driving module 720, and the output end of the motor 710 is connected to the driving module 720. The support seat 730 is arranged at the driving module 720 to reciprocate linearly under the drive of the driving module 720.

[0072] Specifically, in this embodiment, the motor 710 drives the driving module 720, and the driving module 720 drives the support base 730 to move up and down, thereby driving the bottom plate 610 disposed at the support base 730 to move up and down.

[0073] Specifically, the support seat 730 may include a first plate 731 and a second plate 732. The first plate 731 is connected to the driving module 720 to reciprocate under the drive of the driving module 720. The second plate 732 is connected to the first plate 731, and the second plate 732 is used to support the bottom plate 610 so that the bottom plate 610 reciprocates with the support seat 730.

[0074] Specifically, the first plate 731 of this embodiment is vertically arranged, and the second plate 732 is horizontally arranged or at a certain angle to the horizontal plane, and the angle is not too large. The bottom plate 610 is placed on the second plate 732. The two second support seats 730 are respectively arranged on both sides of the bottom plate 610, so that one bottom plate 610 uses two support seats 730 to drive the bottom plate 610 to move up and down at the same time, thereby driving the calibration device 600 and the printing mechanism 400 to move up and down.

[0075] As a specific embodiment of the present invention, Figure 1 and Figure 7 As shown, the printing system 100 of this embodiment may further include a vision module 800 disposed at the first working position 310 to capture the position of each target object at the first working position 310 and feed back the position of the corresponding target object to the corresponding calibration mechanism 620 .

[0076] Specifically, in this embodiment, a plurality of camera components 810 may be included in the visual module 800. The target object is photographed by the camera component 810, and the position information of the target object is fed back to the calibration mechanism 620. The calibration mechanism 620 adjusts the position of the printing units 411 and 421 according to the position information of the target object, so that each printing unit 411 and 421 corresponds to the corresponding target object position, thereby improving the printing accuracy.

[0077] Specifically, the visual module 800 of this embodiment includes eight camera components 810, and each camera component includes a camera, a light source, and a lens.

[0078] Specifically, Figure 1As shown, the film feeding mechanism 200 of this embodiment may include a first film feeding assembly 210, a second film feeding assembly 220, a third film feeding assembly 230 and a fourth film feeding assembly 240 arranged in parallel in a direction perpendicular to the direction of movement of the target. The first film feeding assembly 210, the second film feeding assembly 220, the third film feeding assembly 230 and the fourth film feeding assembly 240 each include at least one film feeding unit 201 arranged in parallel along the direction of movement of the target. The film discharging mechanism 500 of this embodiment may include a first film discharging assembly 510, a second film discharging assembly 520, a third film discharging assembly 530 and a fourth film discharging assembly 540 arranged in parallel in a direction perpendicular to the direction of movement of the target. The first film discharging assembly 510, the second film discharging assembly 520, the third film discharging assembly 530 and the fourth film discharging assembly 540 each include at least one film discharging unit 501 arranged in parallel along the direction of movement of the target. The film feeding unit 201 has the same structure as the film discharging unit 501.

[0079] Specifically, Figure 8 As shown, the film feeding unit 201 or the film discharging unit 501 of this embodiment may include a driving mechanism 202, a pulley 203 and a belt 204. The driving mechanism 202 drives the pulley 203 to move, and the belt 204 is sleeved on the pulley 203, and then moves with the rotation of the pulley 203, so that the target object can be transported.

[0080] In addition, the multiple film feed units 201 of each film feed assembly are arranged in parallel along the moving direction, so that the target object is moved to a suitable position through the multiple film feed units 201. The multiple film output units 501 of each film output assembly are also arranged in parallel along the moving direction, and the target object is moved to a suitable position through the multiple film output units 501.

[0081] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the contents disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A printing system, characterized in that: It includes film feeding mechanism, six-turntable mechanism, printing mechanism and film output mechanism; The film feeding mechanism is used to simultaneously convey four parallel target objects; The six-turntable mechanism is located at one side of the film feeding mechanism, and the six-turntable mechanism includes six working positions spaced 60 degrees apart from each other, and the first working position is close to the film feeding mechanism; after the six-turntable mechanism receives the four targets at the first working position, it rotates to reach the second working position, the third working position and the fourth working position in sequence, and then is output by the film discharging mechanism located at one side of the fourth working position; The printing mechanism includes a first printing mechanism arranged at the second working position and a second printing mechanism arranged at the third working position; the first printing mechanism is used for printing two of the spaced target objects, and the second printing mechanism is used for printing the other two spaced target objects.

2. The printing system according to claim 1, characterized in that: The first printing mechanism includes two printing units arranged in parallel; the second printing mechanism includes two printing units arranged in parallel.

3. The printing system according to claim 2, characterized in that: The positions of the two printing units located at the second working position correspond to the positions of two of the target objects arranged at intervals and rotated to the second working position; The positions of the two printing units located at the third working position correspond to the positions of the other two target objects that are arranged at intervals and rotated to the third working position.

4. The printing system according to claim 2, characterized in that: It also includes two calibration devices, which are respectively located above the second working position and the third working position. Each of the calibration devices includes a base plate and two calibration mechanisms located above the base plate. Each of the calibration mechanisms corresponds to one of the printing units to match the printing unit with the position of the target object.

5. The printing system according to claim 4, characterized in that: It also includes a lifting assembly. Two lifting assemblies are arranged at each calibration device. Each lifting assembly is connected to the base plate to drive the base plate to move up and down relative to the six-turntable mechanism.

6. The printing system according to claim 5, characterized in that: Each of the lifting assemblies comprises: Motor; A driving module, disposed below the motor and connected to an output end of the motor; and The support seat is arranged at the driving module so as to perform linear reciprocating motion under the drive of the driving module.

7. The printing system according to claim 6, characterized in that: The support base comprises: A first plate connected to the driving module to reciprocate under the driving of the driving module; A second plate connected to the first plate, the second plate is used to support the bottom plate so that the bottom plate reciprocates following the support seat.

8. The printing system according to claim 4, characterized in that: It also includes a visual module, which is arranged at the first working position to capture the position of each target object at the first working position and feed back the position of the corresponding target object to the corresponding calibration mechanism.

9. The printing system according to claim 1, characterized in that: The six-turntable mechanism comprises: frame; Driving mechanism; a support column rotatably connected to the frame, wherein the support column rotates relative to the frame under the drive of the driving mechanism; and A support platform is connected to the support column to rotate with the support column; the support platform includes six support units, each support unit corresponds to one of the working positions; and the size of each support unit matches the size of the film feeding mechanism so that the support unit can support four targets at the same time.

10. The printing system according to claim 1, characterized in that: The film feeding mechanism comprises a first film feeding assembly, a second film feeding assembly, a third film feeding assembly and a fourth film feeding assembly arranged in parallel in a direction perpendicular to the direction in which the target moves; the first film feeding assembly, the second film feeding assembly, the third film feeding assembly and the fourth film feeding assembly each comprise at least one film feeding unit arranged in parallel along the direction in which the target moves; The sheet discharging mechanism comprises a first sheet discharging assembly, a second sheet discharging assembly, a third sheet discharging assembly and a fourth sheet discharging assembly arranged in parallel in a direction perpendicular to the direction in which the target moves; the first sheet discharging assembly, the second sheet discharging assembly, the third sheet discharging assembly and the fourth sheet discharging assembly each comprise at least one sheet discharging unit arranged in parallel along the direction in which the target moves; Wherein, the film input unit and the film output unit have the same structure.

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