Screen printing positioning device

Abstract

This application relates to a screen printing positioning device, including a UVW translation platform, a lifting assembly, and a mechanical positioning assembly. The mechanical positioning assembly is connected above the lifting assembly and is driven to move up and down by the lifting assembly. The lifting assembly is connected to the hollow space of the UVW translation platform and is driven to translate within the XY plane by the UVW translation platform. The mechanical positioning assembly is provided with a first positioning axis and a second positioning axis that can move relatively closer and further away along a first direction in the X and Y directions, and a third positioning axis and a fourth positioning axis that can move relatively closer and further away along a second direction in the X and Y directions. This screen printing positioning device can achieve high-precision positioning of the printed material on the material receiving platform.

Description

Technical Field

[0001] This application relates to screen printing equipment, and more specifically, to a screen printing positioning device. Background Technology

[0002] With the increasing maturity and development of screen printing technology, its application areas are constantly expanding. High-precision printing fields, such as window glass, solar crystalline silicon cells, PCB circuit boards, LCD displays, touch panels, and various touch screens, also widely employ screen printing technology, thus placing higher demands on the positioning accuracy of the substrate. Utility Model Content

[0003] The technical problem to be solved by this application is to provide a screen printing positioning device with high positioning accuracy, addressing the aforementioned problems of the prior art.

[0004] The technical solution adopted by this application to solve its technical problem is: to propose a screen printing positioning device, including a UVW translation platform, a lifting component and a mechanical positioning component. The lifting component is driven to translate by the UVW translation platform, and the mechanical positioning component is driven to lift by the lifting component. The mechanical positioning component is provided with a first positioning axis and a second positioning axis that can be relatively close to and far away along the first direction of X and Y, and a third positioning axis and a fourth positioning axis that can be relatively close to and far away along the second direction of X and Y.

[0005] In one embodiment of the screen printing positioning device according to this application, both the third positioning axis and the fourth positioning axis comprise two axes arranged side by side.

[0006] According to one embodiment of the screen printing positioning device described in this application, the UVW translation platform includes a base plate and a translation plate located above the base plate, as well as four drive units connected between the base plate and the translation plate around the perimeter of the translation plate.

[0007] According to one embodiment of the screen printing positioning device described in this application, the lifting assembly is disposed in the hollow space formed by the base plate and the sliding plate of the UVW translation platform and moves together with the sliding plate. It includes a lifting motor, a lead screw transmission group and a lifting frame. The lifting motor drives the lead screw of the lead screw transmission group to rotate, thereby driving the lifting frame, which is fixedly connected to the lead screw nut, to move up and down.

[0008] According to one embodiment of the screen printing positioning device described in this application, the lifting assembly further includes a connecting plate fixed to the translation plate and a lifting mounting plate vertically disposed in the hollow space and fixed to the connecting plate. The lifting motor is installed at the lower end of the lifting mounting plate, the lead screw is supported on the lifting mounting plate and its lower end is connected to the lifting motor for transmission. The lifting mounting plate is also provided with lifting guide rails on both sides of the lead screw to guide the lifting frame to move up and down.

[0009] According to one embodiment of the screen printing positioning device described in this application, the mechanical positioning assembly further includes a positioning mounting plate supported on the lifting frame, a first synchronous belt drive group and a second synchronous belt drive group respectively staggered below the positioning mounting plate along a first direction and a second direction, a first positioning motor and a second positioning motor respectively driving the first synchronous belt drive group and the second synchronous belt drive group to operate, a first positioning slider and a second positioning slider respectively driven by the synchronous belts on both sides of the first synchronous belt drive group to move relative to each other along the first direction, and a third positioning slider and a fourth positioning slider respectively driven by the synchronous belts on both sides of the second synchronous belt drive group to move relative to each other along the second direction. The first positioning shaft and the second positioning shaft are respectively fixed on the first positioning slider and the second positioning slider, and the third positioning shaft and the fourth positioning shaft are respectively fixed on the third positioning slider and the fourth positioning slider.

[0010] The screen printing positioning device of this application has the following beneficial effects: The screen printing positioning device according to the embodiment of this application is provided with a lifting component connected below the mechanical positioning component. The mechanical connection drives the lifting of the mechanical positioning component and fixes it as a whole on the UVW translation platform. The precise displacement of the UVW translation platform drives the automatic adjustment of the entire device, thereby realizing high-precision positioning of the printed material on the material receiving platform. Attached Figure Description

[0011] The present application will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0012] Figure 1 This is a schematic diagram of the structure of a screen printing positioning device according to an embodiment of this application;

[0013] Figure 2 yes Figure 1 A schematic diagram of the lifting component in the diagram;

[0014] Figure 3 yes Figure 1 A schematic diagram of the mechanical positioning component.

[0015] Reference numerals: 100-Silk screen positioning device; 10-UVW translation platform; 11-Base plate; 12-Translation plate; 13-Drive unit; 131-Translation motor; 132-First moving guide rail; 133-Second translation guide rail; 133-Rotating bearing; 20-Lifting assembly; 21-Connecting plate; 22-Lifting mounting plate; 221-First support seat; 222-Second support seat; 23-Lifting motor; 24-Screw drive assembly; 241-Screw; 242-Screw nut; 243-Fixed seat; 25-Lifting guide rail assembly; 251-First lifting guide rail; 252-Second lifting guide rail; 253-First lifting... 254-Second lifting slider; 26-Lifting frame; 30-Mechanical positioning assembly; 31-Positioning mounting plate; 32a-First positioning motor; 32b-Second positioning motor; 33a-First synchronous belt drive group; 33b-Second synchronous belt drive group; 34a-First positioning shaft group; 34b-Second positioning shaft; 35a-Third positioning shaft; 35b-Fourth positioning shaft; 36a-First slide groove; 36b-Second slide groove; 37a-First positioning guide rail; 37b-Second positioning guide rail; 38a-First positioning slider; 38b-Second positioning slider; 39a-Third positioning slider; 39b-Fourth positioning slider. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. Furthermore, the embodiments and features described herein can be combined with each other unless otherwise specified.

[0017] Figure 1 A schematic diagram of a screen printing positioning device 100 according to an embodiment of this application is shown. See also Figure 1As shown, the screen printing positioning device 100 mainly consists of a UVW translation platform 10, a lifting assembly 20, and a mechanical positioning assembly 30. The mechanical positioning assembly 30 is connected above the lifting assembly 20 and is driven to rise and fall by the lifting assembly 20. The lifting assembly 20 is connected in the hollow space of the UVW translation platform 10 and is driven to translate in the XY plane by the UVW translation platform 10. The mechanical positioning assembly 30 is provided with a first positioning shaft 34a and a second positioning shaft 34b that can move closer and further apart relative to each other along the first direction of the X and Y directions, as well as two third positioning shafts 35a and two fourth positioning shafts 35b that can move closer and further apart relative to each other along the second direction of the X and Y directions. The first positioning shafts 34a and the second positioning shafts 34b of the mechanical positioning assembly 30 pass through positioning grooves extending along the first direction on the material receiving platform and move closer or further apart relative to each other. At the same time, the third positioning shafts 35a and the fourth positioning shafts 35b pass through positioning grooves extending along the second direction on the material receiving platform and move closer or further apart relative to each other, thereby adjusting the position of the substrate for precise positioning.

[0018] See also Figure 1 As shown, the UVW translation platform 10 includes a base plate 11, a translation plate 12 located above the base plate 11, and four drive units 13 connected between the base plate 11 and the translation plate 12 around its perimeter. Each drive unit 13 has a translation motor 131, a first translation guide rail 132 guiding the translation plate 12 to move in one of the X and Y directions, a second translation guide rail 133 guiding the translation plate 12 to move in the other of the X and Y directions, and a rotation support 134 guiding the translation plate 12 to deflect relative to the base plate 11. The UVW translation platform 10 can drive the lifting assembly 20 and the positioning assembly 30 to move precisely in any direction in the XY plane.

[0019] See also Figure 1 Combination Figure 2As shown, the lifting assembly 20 is disposed in the hollow space formed by the base plate 11 and the translation plate 12 of the UVW translation platform 10, and moves together with the translation plate 12. The lifting assembly 20 is further composed of a connecting plate 21, a lifting mounting plate 22, a lifting motor 23, a screw drive assembly 24, a lifting guide rail assembly 25, and a lifting frame 26. The connecting plate 21 is fixed on the translation plate 12, and the lifting mounting plate 22 is vertically disposed in the hollow space between the base plate 11 and the translation plate 12d and fixedly connected to the connecting plate 21. The lifting motor 23 is installed at the lower end of the lifting mounting plate 22, and the screw 241 of the screw drive assembly 24 is supported vertically on the first support seat 221 and the second support seat 222 respectively disposed at the upper and lower ends of the lifting mounting plate 22, with the lower end being connected to the lifting motor 23 for transmission. The lifting mounting plate 22 is provided with lifting guide rail assemblies 25 on both sides of the lead screw 241, consisting of a first lifting guide rail 251 and a first lifting slider 253, and a second lifting guide rail 252 and a second lifting slider 254, respectively. The lifting frame 26 is fixedly connected to the lead screw nut 242 of the lead screw transmission assembly 24, and is also fixedly connected to the first lifting slider 253 and the second lifting slider 254. When the lifting motor 23 operates, it drives the lead screw 241 of the lead screw transmission assembly 24 to rotate, thereby driving the lifting frame 26, which is fixedly connected to the lead screw nut 242, to move up and down under the guidance of the lifting guide rail assemblies 25, so as to adjust the height of the mechanical positioning assembly 30.

[0020] See also Figure 1 Combination Figure 3 As shown, the mechanical positioning assembly 30 also includes a positioning mounting plate 31 supported on the lifting frame 26, a first synchronous belt drive group 33a and a second synchronous belt drive group 33b respectively staggered along a first direction and a second direction below the positioning mounting plate, a first positioning motor 32a and a second positioning motor 32b respectively driving the first synchronous belt drive group 33a and the second synchronous belt drive group 33b, a first positioning slider 38a and a second positioning slider 38b respectively driven by the synchronous belts on both sides of the first synchronous belt drive group 33a and moving relative to each other along the first direction, and a third positioning slider 39a and a fourth positioning slider 39b respectively driven by the synchronous belts on both sides of the second synchronous belt drive group 33b and moving relative to each other along the second direction. The first positioning shaft 34a and the second positioning shaft 34b are respectively fixed on the first positioning slider 38a and the second positioning slider 38b, so they can be driven by the synchronous belts on both sides of the first synchronous belt drive group 33a to move relatively closer or further apart. The third positioning shaft 35a and the fourth positioning shaft 35b are fixed to the third positioning slider 39a and the fourth positioning slider 39b respectively, and can be driven by the synchronous belts on both sides of the second synchronous belt drive group 33b to move closer or further apart. See details. Figure 3As shown, the positioning mounting plate 31 has a first groove 36a and a second groove 36b respectively formed on both sides along the first direction, and a first positioning guide rail 37a and a second positioning guide rail 37b extending along the first direction are respectively provided on both sides of the first groove 36a and the second groove 36b. The first positioning slider 38a is slidably mounted on the first positioning guide rail 37a and passes through the first groove 36a to be fixedly connected to one side of the synchronous belt of the first synchronous belt drive group 33a below. The second positioning slider 38b is slidably mounted on the second positioning guide rail 37b and passes through the second groove 36b to be fixedly connected to the other side of the synchronous belt of the first synchronous belt drive group 33a below. In this way, the first positioning slider 38a and the second positioning slider 38b can move closer or further apart relative to each other as the synchronous belt rotates, carrying the first positioning shaft 34a and the second positioning shaft 34b with them. Similarly, the third positioning slider 39a and the fourth positioning slider 39b are also mounted on the positioning mounting plate 31 in the same manner, moving closer or further apart relative to each other as the third positioning shaft 35a and the fourth positioning shaft 35b rotate with the synchronous belt of the second synchronous belt drive group 33b. The cooperation of the two sets of positioning shafts can be used to adjust the positioning of the printing substrate.

[0021] In the screen printing positioning device 100 according to the above embodiments of this application, the mechanical positioning component 30 is driven to rise and fall by the lifting component 20. The lifting component 20 is connected below the mechanical positioning component 30, and drives the mechanical positioning component 30 to rise and fall through a mechanical connection. It is fixed above the UVW translation platform 10. The precise displacement of the UVW translation platform 10 drives the automatic adjustment of the entire screen printing positioning device 100, thereby achieving high-precision positioning of the printed material on the material carrier platform.

[0022] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A screen printing positioning device, characterized by, The device includes a UVW translation platform, a lifting assembly, and a mechanical positioning assembly. The mechanical positioning assembly is connected above the lifting assembly and is driven to move up and down by the lifting assembly. The lifting assembly is connected in the hollow space of the UVW translation platform and is driven to translate in the XY plane by the UVW translation platform. The mechanical positioning assembly is provided with a first positioning axis and a second positioning axis that can move relatively closer and further away along a first direction in the X and Y directions, as well as a third positioning axis and a fourth positioning axis that can move relatively closer and further away along a second direction in the X and Y directions.

2. The screen printing positioning device of claim 1, wherein, Both the third and fourth positioning axes consist of two axes arranged side by side.

3. The screen printing positioning device of claim 1, wherein, The UVW translation platform includes a base plate, a translation plate located above the base plate, and four drive units connected between the base plate and the translation plate around the perimeter of the translation plate.

4. The screen printing positioning device according to claim 3, characterized in that, The lifting assembly is set in the hollow space formed by the base plate and the sliding plate of the UVW translation platform and moves together with the sliding plate. It includes a lifting motor, a lead screw transmission group and a lifting frame. The lifting motor drives the lead screw of the lead screw transmission group to rotate, thereby driving the lifting frame, which is fixedly connected to the lead screw nut, to move up and down.

5. The screen printing positioning device according to claim 4, characterized in that, The lifting assembly also includes a connecting plate fixed to the translation plate and a lifting mounting plate vertically disposed in the hollow space and fixed to the connecting plate. The lifting motor is installed at the lower end of the lifting mounting plate. The lead screw is supported on the lifting mounting plate and its lower end is connected to the lifting motor for transmission. The lifting mounting plate is also provided with lifting guide rails on both sides of the lead screw to guide the lifting frame to move up and down.

6. The screen printing positioning device according to claim 4, characterized in that, The mechanical positioning assembly further includes a positioning mounting plate supported on the lifting frame, a first synchronous belt drive group and a second synchronous belt drive group respectively staggered below the positioning mounting plate along a first direction and a second direction, a first positioning motor and a second positioning motor respectively driving the first synchronous belt drive group and the second synchronous belt drive group, a first positioning slider and a second positioning slider respectively driven by the synchronous belts on both sides of the first synchronous belt drive group and moving relative to each other along the first direction, and a third positioning slider and a fourth positioning slider respectively driven by the synchronous belts on both sides of the second synchronous belt drive group and moving relative to each other along the second direction. The first positioning shaft and the second positioning shaft are respectively fixed on the first positioning slider and the second positioning slider, and the third positioning shaft and the fourth positioning shaft are respectively fixed on the third positioning slider and the fourth positioning slider.

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