Screen jig and screen scribing equipment

Abstract

The utility model discloses a screen jig and screen scribing equipment. The screen jig comprises a lifting table, an adsorption assembly and a limiting assembly. Wherein the lifting table comprises a lifting part, the adsorption assembly comprises a square-frame-shaped adsorption part arranged on the lifting part, a plurality of adsorption holes are formed in the upper surface of the adsorption part, and a cavity communicated with the adsorption holes is formed in the adsorption part; the upper surface of the adsorption part is higher than the upper surface of the lifting part, and the adsorption part can bear and adsorb the screen printing plate; the limiting assembly comprises a plurality of first limiting pieces arranged on the lifting piece and located on one side of the adsorption piece and a plurality of second limiting pieces arranged on the other side adjacent to the adsorption piece, and the first limiting pieces and the second limiting pieces are used for limiting the outer frame. The lifting table can drive the screen printing plate to ascend and descend so as to adjust the distance between the screen printing plate and the laser emitting head, the laser emitting head can be kept fixed in the vertical direction, and a light path protection structure of the laser cutting assembly can be further simplified.

Description

Technical Field

[0001] This application relates to the field of laser equipment, and in particular to a screen printing fixture and a screen printing line marking device. Background Technology

[0002] With the continuous expansion of the green energy market, solar panels are becoming increasingly widespread. The manufacturing process of solar cells requires printed circuitry. The screen used for printing mainly consists of an outer frame, a wire mesh mounted on the outer frame, and a thin film mounted on the wire mesh. The thin film is adhered to the wire mesh, and lines are drawn and cut on the film according to the designed circuit diagram. The film in the designated area is then separated from the overall film to obtain the printing screen. A common screen marking machine is the upper Z-axis marking machine. This type of machine uses a drive module to move the laser head up and down, maintaining the laser head at a suitable processing distance from the screen. The upper Z-axis marking machine has a relatively long optical path, requiring more optical components. Its lifting movement also requires more protective components to isolate the optical path from the external environment, making its structure relatively complex. Utility Model Content

[0003] This application proposes a screen printing fixture and a screen printing marking device, which can install and fix the screen and drive the screen to rise and fall, thus simplifying the laser optical path structure.

[0004] This application proposes a screen printing fixture, comprising:

[0005] Lifting platform, including lifting components;

[0006] The adsorption assembly includes a square-shaped adsorption element disposed on the lifting component. The upper surface of the adsorption element is provided with a plurality of adsorption holes, and the interior of the adsorption element is provided with a chamber communicating with the adsorption holes. The upper surface of the adsorption element is higher than the upper surface of the lifting component.

[0007] The limiting component includes a plurality of first limiting members and a plurality of second limiting members disposed on the lifting member. The first limiting members are located on one side of the adsorption member, and the second limiting members are disposed on the other side adjacent to the adsorption member. The plurality of first limiting members are spaced apart, and the plurality of second limiting members are also spaced apart.

[0008] The first and second limiting members, which are away from the adsorption member, are used to limit the outer side wall of the outer frame, while the first and second limiting members, which are close to the adsorption member, are used to limit the inner side wall of the outer frame.

[0009] In some embodiments, the lifting platform includes a base and a drive assembly. The lifting member is disposed on the base and slidably connected to the base in a vertical direction. The drive assembly is disposed on the base and is used to drive the lifting member to move in a vertical direction.

[0010] In some embodiments, the driving component includes:

[0011] The first slider is slidably connected to the base and located below the lifting component. The top surface of the first slider facing the lifting component is set as an inclined surface.

[0012] The second slider is disposed on the lower surface of the lifting component and is slidably connected to the first slider;

[0013] A linear drive is used to drive the first slider to slide along a first direction, so as to drive the lifting component and the first slider to rise and fall, wherein the first direction is perpendicular to the vertical direction.

[0014] In some embodiments, the screen printing fixture further includes a vacuum pressure gauge communicating with the chamber.

[0015] In some embodiments, the screen fixture further includes a set screw connecting the adsorption member and the lifting member, the set screw being used to adjust the levelness of the adsorption member.

[0016] This application also proposes a screen marking device, including a screen fixture.

[0017] In some embodiments, the screen marking device further includes a machine base for mounting the screen fixture.

[0018] In some embodiments, the screen marking device further includes a drive mechanism disposed on the machine base, the drive mechanism being used to drive the screen fixture to move along a first direction and a second direction, the second direction being perpendicular to the first direction and the vertical direction.

[0019] In some embodiments, the screen marking device further includes a gantry mounted on the machine platform and a laser cutting assembly mounted on the gantry, the laser cutting assembly including a laser emitting head located above the adsorption element.

[0020] In some embodiments, the screen marking device further includes a vision module, which includes a vision camera mounted on the gantry and located on one side of the transmitter head.

[0021] The screen printing fixture and screen marking device in this application include a lifting platform, an adsorption assembly, and a limiting assembly. The lifting platform includes a lifting element, and the adsorption assembly includes a square-shaped adsorption element mounted on the lifting element. The upper surface of the adsorption element has multiple adsorption holes, and the adsorption element has a chamber communicating with the adsorption holes. The upper surface of the adsorption element is higher than the upper surface of the lifting element, enabling it to receive and adsorb the screen printing plate. The limiting assembly includes multiple first limiting elements mounted on the lifting element and located on one side of the adsorption element, and multiple second limiting elements located on the other side adjacent to the adsorption element. The first limiting elements are spaced apart, and the second limiting elements are also spaced apart. The first and second limiting elements farther from the adsorption element limit the outer wall of the outer frame, while the first and second limiting elements closer to the adsorption element limit the inner wall of the outer frame. The lifting platform can drive the screen printing plate to rise and fall to adjust the distance between the screen printing plate and the laser emitting head. The laser emitting head can remain fixed, and the optical path protection structure of the laser cutting assembly can be further simplified. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the screen printing fixture in one embodiment of this application;

[0023] Figure 2 for Figure 1 A schematic diagram of the adsorption element in the embodiment;

[0024] Figure 3 for Figure 1 A schematic diagram of the lifting platform in the embodiment;

[0025] Figure 4 for Figure 1 A schematic diagram of the screen marking device in the embodiment.

[0026] Label Explanation:

[0027] 11. Machine base; 12. Gantry frame; 13. Laser cutting assembly; 14. First linear drive module; 15. Second linear drive module; 20. Lifting platform; 21. Base; 22. Lifting component; 23. Drive assembly; 24. First slider; 25. Column; 27. Second slider; 30. Adsorption assembly; 31. Adsorption component; 32. Sealing plate; 33. Connector; 40. Screen; 41. Outer frame; 51. First limiting component; 52. Second limiting component.

[0028] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] The solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments in this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0030] It should be noted that all directional indications in the embodiments of this application, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0031] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0032] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0033] This application proposes a screen printing fixture, referring to... Figures 1 to 4 The screen printing fixture includes: a lifting platform 20, including a lifting component 22; an adsorption assembly 30, including a square-shaped adsorption component 31 disposed on the lifting component 22, wherein the upper surface of the adsorption component 31 is provided with a plurality of adsorption holes, and the adsorption component 31 has a chamber communicating with the adsorption holes; the upper surface of the adsorption component 31 is higher than the upper surface of the lifting component 22; and a limiting assembly, including a plurality of first limiting components 51 and a plurality of second limiting components 52 disposed on the lifting component 22, wherein the first limiting components 51 are located on one side of the adsorption component 31, and the second limiting components 52 are disposed on the other side adjacent to the adsorption component 31; the plurality of first limiting components 51 are spaced apart, and the plurality of second limiting components 52 are also spaced apart; the first limiting components 51 and the second limiting components 52 away from the adsorption component 31 are used to limit the outer side wall of the outer frame 41, and the first limiting components 51 and the second limiting components 52 close to the adsorption component 31 are used to limit the inner side wall of the outer frame 41.

[0034] In this embodiment, the adsorption member 31 is configured as a square frame structure, which can match the outer frame 41 of the screen 40. The upper surface of the adsorption member 31 is higher than the upper surface of the lifting member 22, so as to receive and adsorb the screen 40. At this time, the adsorption member 31 is located in the outer frame 41. The outer frame 41 is composed of four frame strips connected end to end. Multiple first limiting members 51 can limit one of the frame strips of the outer frame 41. The first limiting member 51 away from the adsorption member 31 is used to limit the outer side wall of the frame strip of the outer frame 41, and the first limiting member 51 close to the adsorption member 31 can limit the inner side wall of the frame strip of the outer frame 41. Multiple second limiting members 52 can limit another adjacent frame strip of the outer frame 41. The second limiting member 52 away from the adsorption member 31 is used to limit the outer side wall of another frame strip of the outer frame 41, and the second limiting member 52 close to the adsorption member 31 can limit the inner side wall of another frame strip of the outer frame 41. The lifting platform 20 can drive the screen 40 to rise and fall to adjust the distance between the screen 40 and the laser emitting head. The laser emitting head can be kept fixed in the vertical direction. The optical path protection structure of the laser cutting component 13 can be further simplified and set as a fixed structure.

[0035] In this embodiment, the bottom of the adsorption member 31 is provided with a groove, and the groove opening is provided with a sealing plate 32. The groove and the sealing plate 32 can create the aforementioned chamber. A connector 33 can also be provided on the sealing plate 32 to communicate with an external negative pressure pipeline. The aforementioned first limiting member 51 and second limiting member 52 can be provided in the form of limiting pins, or they can be in the form of long strip-shaped limiting strips. The frame strip of the outer frame 41 is located between the two spaced-apart first limiting members 51, and another adjacent frame strip of the outer frame 41 is located between the two spaced-apart second limiting members 52.

[0036] In some embodiments, refer to Figures 1 to 4 The lifting platform 20 includes a base 21 and a drive assembly 23. The lifting member 22 is disposed on the base 21 and is slidably connected to the base 21 in the vertical direction. The drive assembly 23 is disposed on the base 21 and is used to drive the lifting member 22 to move in the vertical direction. In this embodiment, the lifting member 22 and the base 21 can be slidably connected by vertically arranged slide rails and sliders. Specifically, columns 25 can be set at the four corners of the base 21, sliders can be set on the columns 25, and slide rails adapted to the sliders can be set on the lower surface of the lifting member 22. Of course, the positions of the slide rails and sliders can also be interchanged. The drive mechanism can be an electric cylinder, which can drive the lifting member 22 to rise and fall. The specific lifting distance can be adjusted by the rotation angle of the motor of the electric cylinder to adapt to different focal lengths.

[0037] In addition to the above-mentioned direct-drive scheme using an electric cylinder, a certain transmission structure can also be set for transmission. Specifically, the drive assembly 23 may include a first slider 24, a second slider 27, and a linear drive component. The first slider 24 is slidably connected to the base 21 and located below the lifting component 22, with its top surface facing the lifting component 22 set as an inclined plane; the second slider 27 is disposed on the lower surface of the lifting component 22 and slidably connected to the first slider 24; the linear drive component is used to drive the first slider 24 to slide along a first direction, thereby driving the lifting component 22 and the first slider 24 to rise and fall, the first direction being perpendicular to the vertical direction. In this embodiment, the first and second directions are parallel to the upper surface of the base 21, and the vertical direction is perpendicular to the upper surface of the base 21. The linear drive component may be an electric cylinder, specifically including a motor and a lead screw mechanism, with the lead screw set parallel to the first direction. The nut of the lead screw mechanism is connected to the first slider 24, and the motor drives the lead screw to rotate, thereby moving the first slider 24. During the movement, the first slider 24 pushes the second slider 27 and the lifting component 22 to rise and fall. The drive assembly 23 adopts a horizontal drive and slider guide method, which can reduce the thickness of the lifting platform 20 in the vertical direction.

[0038] In some embodiments, refer to Figures 1 to 4 The screen fixture also includes a vacuum pressure gauge communicating with the chamber. In this embodiment, a connector 33 can be provided at the bottom of the adsorption member 31. The connector 33 is connected to an external vacuum generator through an air pipe to create negative pressure in the chamber and adsorption holes. The vacuum pressure gauge is electrically connected to the vacuum generator, and the power of the vacuum generator is controlled by the vacuum level it measures, ensuring that an appropriate adsorption force is provided to the screen 40, avoiding damage to the screen 40 due to excessive adsorption force, or misalignment of the screen 40 due to insufficient adsorption force.

[0039] Furthermore, the screen fixture also includes a set screw connecting the adsorption member 31 and the lifting member 22. The set screw is used to adjust the levelness of the adsorption member 31. In this embodiment, the adsorption member 31 has through holes at its four corners, and countersunk holes at the upper ends of the through holes. The lifting member 22 has corresponding first screw holes, and the adsorption member 31 can be fixed to the lifting member 22 by screws. In addition, a second screw hole can be provided on the lifting member 22. The second screw hole is a through hole, and the set screw is located in the second screw hole. It can extend from the upper end of the lifting member 22 and hold it against the lifting member 22. By rotating the set screw, the extension amount can be adjusted to adjust the levelness of the upper surface of the adsorption member 31.

[0040] This application also proposes a screen marking device, referring to... Figures 1 to 4The screen marking equipment includes a screen fixture and a machine base 11 for mounting the screen fixture. In this embodiment, the machine base 11 is used to mount the screen fixture. Additionally, marble blocks for counterweights can be installed on the machine base 11 to reduce vibration during operation. Furthermore, the screen marking equipment includes a drive mechanism mounted on the machine base 11. The drive mechanism drives the screen fixture to move along a first direction and a second direction, the second direction being perpendicular to the first direction and the vertical direction. The drive mechanism can be a linear drive module, wherein a first linear drive module 14 is arranged along the first direction and mounted on the machine base 11, and a second linear drive module 15 is arranged along the second direction and mounted at the moving end of the first linear drive module 14. A lifting platform 20 can be mounted at the moving end of the second linear drive module 15, thereby driving the lifting member 22 and the screen 40 thereon to translate and lift on the machine base 11.

[0041] In this embodiment, the screen marking equipment further includes a gantry frame 12 mounted on the machine base 11, and a laser cutting assembly 13 mounted on the gantry frame 12. The laser cutting assembly 13 includes a laser emitting head located above the suction member 31. The laser emitting head can be fixedly mounted on the gantry frame 12, and the screen 40 can be moved by the lifting platform 20 below and the drive mechanism, thereby assisting the laser emitting head in completing the marking process on the screen 40.

[0042] In this embodiment, the screen marking device further includes a vision module, which in turn includes a vision camera mounted on the gantry 12 and located on one side of the transmitter head. The vision camera can be used for visual positioning and quality inspection of the screen 40. The vision module includes a camera, lens, light source, etc., for positioning.

[0043] In this embodiment, the laser cutting assembly 13 further includes: a laser generator for generating laser light; a reflection module containing a reflector to change the direction of light reflection; a sealing cylinder to seal the optical path and prevent dust from entering; a beam expander module with a built-in beam expander to adjust the spot size; a galvanometer adjustment block to adjust the level of the galvanometer; the galvanometer controls the direction of the optical path to change the scribe line position; a field lens mounted below the galvanometer for focusing and focusing the beam vertically downwards; and a height measurement module to measure the height of the screen 40 and for calibration. The galvanometer and field lens can serve as the aforementioned laser emitting head.

[0044] In this embodiment, the specific working principle of the screen printing fixture and screen marking equipment is as follows:

[0045] Optical path section: The laser generates laser light, which enters the beam expander module through two sets of reflection modules. After the beam expander module adjusts the spot size, the laser light enters the galvanometer. The galvanometer then reflects the laser light onto the field mirror, and after being focused by the field mirror, the laser light strikes the 40mm screen printing film, performing scribing and cutting on the 40mm screen printing film.

[0046] Workflow: Manually place the screen printing plate 40 onto the suction unit 31, open the solenoid valve to create negative pressure inside the suction unit 31, and adhere the screen printing plate 40 film to it. Then, control the drive mechanism to move the screen printing plate 40 to a suitable position for calibration and positioning with the height measurement and vision modules. After completing the preparation, control the drive mechanism to move the screen printing plate 40 to the first marking position to perform marking and cutting. After the first area is cut, control the drive mechanism to move the screen printing plate 40 to the second area, and so on, until all lines are marked.

[0047] The above are only some or preferred embodiments of this application. Neither the text nor the drawings should limit the scope of protection of this application. All equivalent structural transformations made using the content of this application's specification and drawings under the overall concept of this application, or direct / indirect applications in other related technical fields, are included within the scope of protection of this application.

Claims

1. A screen printing fixture, characterized in that, include: Lifting platform, including lifting components; The adsorption assembly includes a square-shaped adsorption element disposed on the lifting component. The upper surface of the adsorption element is provided with a plurality of adsorption holes, and the interior of the adsorption element is provided with a chamber communicating with the adsorption holes. The upper surface of the adsorption element is higher than the upper surface of the lifting component. The limiting component includes a plurality of first limiting members and a plurality of second limiting members disposed on the lifting member. The first limiting members are located on one side of the adsorption member, and the second limiting members are disposed on the other side adjacent to the adsorption member. The plurality of first limiting members are spaced apart, and the plurality of second limiting members are also spaced apart. The first and second limiting members, which are away from the adsorption member, are used to limit the outer side wall of the outer frame, while the first and second limiting members, which are close to the adsorption member, are used to limit the inner side wall of the outer frame.

2. The screen printing fixture according to claim 1, characterized in that, The lifting platform includes a base and a drive assembly. The lifting component is disposed on the base and is slidably connected to the base in the vertical direction. The drive assembly is disposed on the base and is used to drive the lifting component to move in the vertical direction.

3. The screen printing fixture according to claim 2, characterized in that, The driving component includes: The first slider is slidably connected to the base and located below the lifting component. The top surface of the first slider facing the lifting component is set as an inclined surface. The second slider is disposed on the lower surface of the lifting component and is slidably connected to the first slider; A linear drive is used to drive the first slider to slide along a first direction, so as to drive the lifting component and the first slider to rise and fall, wherein the first direction is perpendicular to the vertical direction.

4. The screen printing fixture according to claim 1, characterized in that, The screen printing fixture also includes a vacuum pressure gauge that communicates with the chamber.

5. The screen printing fixture according to claim 1, characterized in that, The screen fixture also includes a set screw connecting the adsorption element and the lifting element, the set screw being used to adjust the levelness of the adsorption element.

6. A screen marking device, characterized in that, The screen printing fixture includes any one of claims 1 to 5.

7. The screen marking device according to claim 6, characterized in that, The screen marking equipment also includes a machine base for mounting the screen fixture.

8. The screen marking device according to claim 7, characterized in that, The screen marking device also includes a drive mechanism mounted on the machine base. The drive mechanism is used to drive the screen fixture to move along a first direction and a second direction, wherein the second direction is perpendicular to the first direction and the vertical direction.

9. The screen marking device according to claim 8, characterized in that, The screen marking equipment also includes a gantry frame mounted on the machine platform and a laser cutting assembly mounted on the gantry frame. The laser cutting assembly includes a laser emitting head located above the adsorption element.

10. The screen marking device according to claim 9, characterized in that, The screen marking device also includes a vision module, which in turn includes a vision camera. The vision camera is mounted on the gantry and located on one side of the transmitter head.

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