Automatic aligning and feeding device of full-automatic screen printing machine

Abstract

The utility model discloses an automatic aligning and feeding device of a full-automatic screen printing machine, which belongs to the technical field of screen printing machines and comprises a bottom plate, a plurality of self-locking trundles are fixedly mounted on the bottom surface of the bottom plate, and a band-type brake motor is fixedly mounted on the bottom surface of the bottom plate. According to the screen printing device, display screens to be subjected to screen printing are stacked and placed through the bottom plate, the lifting plate is moved to the position above the display screens through cooperation of the first screw rod and the lifting base, and the first clamping plate and the second clamping plate are driven by the first electric push rod and the second electric push rod to clamp the uppermost display screen; the first screw rod and the lifting base are matched to drive the lifting plate and the display screen to move to the position above the screen printing platform of the screen printing machine, the band-type brake motor is used for driving the rotating column and the lifting plate to rotate, the third electric push rod is used for driving the lifting plate and the display screen to move to the preset position on the screen printing machine platform, and the function of automatically feeding the display screen is achieved.

Description

Technical Field

[0001] This utility model relates to the field of screen printing machine technology, and more specifically, to an automatic screen printing machine automatic turning and feeding device. Background Technology

[0002] Liquid crystal displays (LCDs) are a type of flat panel display used in televisions and computers. During LCD production, markings are screen-printed onto the displays. To improve efficiency, fully automatic screen printing machines are used. The screen printing process requires a feeding mechanism to place the display on the screen printing platform. However, existing feeding devices are not ideal for automatic alignment, often leading to misalignment between the display and the screen printing plate, thus affecting printing quality. Therefore, we propose an automatic alignment feeding device for fully automatic screen printing machines. Utility Model Content

[0003] In view of the problems mentioned in the background art, the purpose of this utility model is to provide an automatic screen printing machine automatic rotation and feeding device.

[0004] To solve the above problems, the present invention adopts the following technical solution:

[0005] An automatic screen printing machine automatic turning and feeding device includes a base plate. Multiple self-locking casters are fixedly installed on the bottom surface of the base plate. A brake motor is fixedly installed on the bottom surface of the base plate. The output shaft of the brake motor extends to the top of the base plate and is equipped with a lifting mechanism. A limit mechanism is provided on the lifting mechanism. A lifting plate is provided on the side of the lifting mechanism. Two transverse grooves and multiple longitudinal grooves are formed on the bottom surface of the lifting plate. A first electric push rod is fixedly installed at one end of each of the two transverse grooves. A first clamping plate is fixedly connected to the output end of each of the two first electric push rods. The first clamping plate is slidably connected to the inner cavity of the transverse groove. A second electric push rod is fixedly installed at one end of each of the multiple longitudinal grooves. A second clamping plate is fixedly connected to the output end of each of the multiple second electric push rods. The second clamping plate is slidably connected to the inner cavity of the longitudinal groove. A first contact sensor is fixedly installed in the middle of the bottom surface of the lifting plate. The bottom surface of the first contact sensor is flush with the bottom surface of the lifting plate. Protective pads are provided on the inner sides of the bottom ends of both the first and second clamping plates.

[0006] In a preferred embodiment of this utility model, the lifting mechanism includes a rotating column fixedly connected to the end of the output shaft of the brake motor. The rotating column has a lifting groove, and a first screw is rotatably connected to the inner cavity of the lifting groove. A lifting seat is threaded onto the outer side of the first screw. A third electric push rod is fixedly installed on the lifting seat. The output end of the third electric push rod is connected to the lifting plate. A distance sensor is fixedly installed on the lifting seat. A first servo motor is fixedly installed on the top surface of the rotating column, and the output shaft of the first servo motor is connected to the top end of the first screw.

[0007] As a preferred embodiment of this utility model, the limiting mechanism includes a movable groove formed on the outside of the rotating column and a second servo motor fixedly installed on the top of the rotating column. A second screw is rotatably connected to the inner cavity of the movable groove. The output shaft of the second servo motor is connected to the top of the second screw. A movable block is threaded onto the outer side of the second screw. The end of the movable block extends into the inner cavity of the lifting groove. A second contact sensor is fixedly installed on the bottom surface of the end of the movable block.

[0008] In a preferred embodiment of this utility model, a pusher is fixedly connected to the side of the base plate, and a control panel is fixedly installed on the pusher.

[0009] In a preferred embodiment of this utility model, the inner wall of the lifting groove and the side of the lifting seat are in contact.

[0010] In a preferred embodiment of this utility model, the inner wall of the moving groove and the side of the moving block are in contact.

[0011] The advantages of this utility model are:

[0012] (1) In this utility model, the display screens to be screen printed are stacked and placed by the base plate. The lifting plate is moved above the display screen by the cooperation of the first screw and the lifting seat. The first electric push rod and the second electric push rod drive the first clamping plate and the second clamping plate to clamp the top display screen. The lifting plate and the display screen are moved above the screen printing platform of the screen printing machine by the cooperation of the first screw and the lifting seat. The rotating column and the lifting plate are rotated by the brake motor. The lifting plate and the display screen are moved to the predetermined position on the screen printing machine platform by the third electric push rod, thus realizing the function of automatic feeding of the display screen. The first clamping plate and the second clamping plate can straighten the tilted display screen.

[0013] (2) In this utility model, the second servo motor drives the second screw to rotate, and the screw and the moving block move the moving block and the second contact sensor up and down through the threaded engagement between the second screw and the moving block. The second contact sensor limits the position of the lifting seat and the lifting plate to ensure that the bottom surface of the display screen grabbed by the lifting plate is just flush with the screen printing machine platform, so as to facilitate the accurate loading of the display screen onto the screen printing machine platform. This loading device can meet the loading needs of screen printing machines of different heights. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the front of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall structure of the back of this utility model;

[0016] Figure 3 This is a schematic diagram of the rotating column of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the movable groove of this utility model;

[0018] Figure 5 This is a schematic diagram of the lifting plate of this utility model;

[0019] Figure 6 This utility model Figure 3 Enlarged diagram of point A in the diagram.

[0020] Explanation of the labels in the diagram:

[0021] 1. Base plate; 2. Brake motor; 3. Lifting mechanism; 4. Limiting mechanism; 5. Lifting plate; 6. Horizontal groove; 7. Longitudinal groove; 8. First electric push rod; 9. First clamping plate; 10. Second electric push rod; 11. Second clamping plate; 12. Protective pad; 13. First contact sensor; 14. Rotary column; 15. Lifting groove; 16. First screw; 17. Lifting seat; 18. Third electric push rod; 19. Distance sensor; 20. First servo motor; 21. Second servo motor; 22. Second screw; 23. Moving block; 24. Second contact sensor; 25. Self-locking caster; 26. Push handle; 27. Control panel; 28. Moving groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example:

[0026] Please see Figure 1-6 An automatic screen printing machine automatic turning and feeding device includes a base plate 1. Multiple self-locking casters 25 are fixedly installed on the bottom surface of the base plate 1. A brake motor 2 is fixedly installed on the bottom surface of the base plate 1. The output shaft of the brake motor 2 extends to the top of the base plate 1 and is equipped with a lifting mechanism 3. A limit mechanism 4 is provided on the lifting mechanism 3. A lifting plate 5 is provided on the side of the lifting mechanism 3. Two transverse grooves 6 and multiple longitudinal grooves 7 are formed on the bottom surface of the lifting plate 5. A first electric push rod 8 is fixedly installed at one end of each of the two transverse grooves 6. The output end of each push rod 8 is fixedly connected to a first clamping plate 9, which is slidably connected to the inner cavity of the transverse groove 6. A second electric push rod 10 is fixedly installed at one end of the inner cavity of each of the multiple longitudinal grooves 7. The output end of each of the multiple second electric push rods 10 is fixedly connected to a second clamping plate 11, which is slidably connected to the inner cavity of the longitudinal groove 7. A first contact sensor 13 is fixedly installed in the middle of the bottom surface of the lifting plate 5. The bottom surface of the first contact sensor 13 is flush with the bottom surface of the lifting plate 5. A protective pad 12 is provided on the inner side of the bottom end of the first clamping plate 9 and the second clamping plate 11.

[0027] For details, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 6The lifting mechanism 3 includes a rotating column 14 fixedly connected to the end of the output shaft of the brake motor 2. The rotating column 14 has a lifting groove 15. The inner cavity of the lifting groove 15 is rotatably connected to a first screw 16. The outer side of the first screw 16 is threaded with a lifting seat 17. A third electric push rod 18 is fixedly installed on the lifting seat 17. The output end of the third electric push rod 18 is connected to the lifting plate 5. A distance sensor 19 is fixedly installed on the lifting seat 17. A first servo motor 20 is fixedly installed on the top surface of the rotating column 14. The output shaft of the first servo motor 20 is connected to the top end of the first screw 16.

[0028] In this embodiment, the height of the lifting plate 5 is adjusted by the cooperation of the first screw 16 and the lifting seat 17, so that the second clamping plate 11 and the first clamping plate 9 on the lifting plate 5 can grasp the display screens stacked above the base plate 1. In addition, the distance sensor 19 is used to detect the distance of the lifting plate 5 moving to the screen printing machine platform to ensure that the position of the lifting plate 5 on the screen printing machine platform is the same each time, so as to ensure that the grasped display screens can be accurately placed on the screen printing machine platform. In addition, it is ensured that each display screen is placed in the same position on the screen printing machine platform. Furthermore, the bottom surface of the rotating column 14 is in contact with the top surface of the base plate 1 to ensure that the top surface of the base plate 1 can support the rotating column 14.

[0029] For details, please refer to Figure 1 , Figure 4 and Figure 6 The limiting mechanism 4 includes a moving groove 28 opened on the outside of the rotating column 14 and a second servo motor 21 fixedly installed on the top of the rotating column 14. The inner cavity of the moving groove 28 is rotatably connected to a second screw 22. The output shaft of the second servo motor 21 is connected to the top of the second screw 22. A moving block 23 is threaded on the outside of the second screw 22. The end of the moving block 23 extends into the inner cavity of the lifting groove 15. A second contact sensor 24 is fixedly installed on the bottom surface of the end of the moving block 23.

[0030] In this embodiment, the height of the second contact sensor 24 is adjusted by the cooperation between the second screw 22 and the moving block 23. When the second contact sensor 24 contacts the top surface of the lifting seat 17, it indicates that the lifting plate 5 has moved up to a height that matches the screen printing machine platform, so that the third electric push rod 18 can be used to move the lifting plate 5 and the display screen held below the lifting plate 5 to the screen printing machine platform.

[0031] For details, please refer to Figure 1 A push handle 26 is fixedly connected to the side of the base plate 1, and a control panel 27 is fixedly installed on the push handle 26.

[0032] In this embodiment, the feeding device is pushed by the pusher 26 and controlled by the control panel 27.

[0033] For details, please refer to Figure 2 The inner wall of the lifting groove 15 fits against the side of the lifting seat 17.

[0034] In this embodiment, the inner wall of the lifting groove 15 is used to limit the lifting seat 17, so that the lifting seat 17 can only move along the axial direction of the first screw 16.

[0035] For details, please refer to Figure 4 The inner wall of the moving groove 28 and the side of the moving block 23 are in contact.

[0036] In this embodiment, the inner wall of the moving groove 28 is used to limit the moving block 23, so that the moving block 23 can only move along the axial direction of the second screw 22.

[0037] Working principle: In use, first, hold the push handle 26 to move the self-locking casters 25 to the side of the automatic screen printing machine's screen printing platform. The self-locking function of the casters 25 is used to fix the device, allowing the base plate 1 to be placed on the side of the automatic screen printing machine. Then, stack the display screens to be screen printed on the top surface of the base plate 1, ensuring the display screens are positioned below the lifting plate 5. Additionally, the second servo motor 21 drives the second screw 22 to rotate. The threaded engagement between the second screw 22 and the moving block 23 drives the moving block 23 and the second contact sensor 2... 4. The vertical movement causes the second contact sensor 24 to move above the screen printing platform of the automatic screen printing machine. Then, the first servo motor 20 is activated to drive the first screw 16 to rotate. Through the threaded engagement between the first screw 16 and the lifting seat 17, the lifting seat 17 and the lifting plate 5 move downward. When the bottom surface of the lifting plate 5 contacts the display screen at the top of the pallet, the first contact sensor 13 detects the display screen. At this time, the first servo motor 20 is turned off, and the first electric push rod 8 is activated to drive the two first clamping plates 9 to move closer to each other. Through multiple second electric push rods 10, the two clamping plates 9 move closer to each other. The second clamping plates 11 approach each other, and the pads 12 on the first clamping plate 9 and the second electric push rod 10 are used to grip the top display screen of the stack. After gripping, the first servo motor 20 is started to drive the first screw 16 to reverse. Through the threaded engagement between the first screw 16 and the lifting seat 17, the lifting seat 17, the lifting plate 5, and the display screen move upward. When the top surface of the lifting seat 17 contacts the second contact sensor 24, the bottom surface of the gripped display screen is flush with the top surface of the screen printing machine platform. Finally, the brake motor 2 is started to drive the rotating column 14 and the lifting plate 5 to rotate 18 times. At 0 degrees, the third electric push rod 18 is activated to move the lifting plate 5 towards the screen printing machine. At the same time, the distance measuring sensor 19 measures the moving distance of the lifting plate 5. When the third electric push rod 18 moves the lifting plate 5 to the predetermined position, the lifting plate 5 stops moving. At the same time, the display screen moves to the screen printing platform of the screen printing machine. The first electric push rod 8 and the second electric push rod 10 are activated to release the first clamping plate 9 and the second clamping plate 11 from the display screen and reset the lifting plate 5 so that the automatic screen printing machine can perform screen printing on the display screen.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A full-automatic screen printing machine automatic right-angled feeding device, comprising a bottom plate (1), characterized in that: The bottom surface of the bottom plate (1) is fixedly installed with a plurality of self-locking casters (25), the bottom surface of the bottom plate (1) is fixedly installed with an electromagnetic brake motor (2), the output shaft of the electromagnetic brake motor (2) extends to the top of the bottom plate (1) and is provided with a lifting mechanism (3), the lifting mechanism (3) is provided with a limiting mechanism (4), the side of the lifting mechanism (3) is provided with a lifting plate (5), the bottom surface of the lifting plate (5) is provided with two transverse grooves (6), the bottom surface of the lifting plate (5) is provided with a plurality of longitudinal grooves (7), one end of the inner cavity of each of the two transverse grooves (6) is fixedly installed with a first electric push rod (8), the output end of each of the two first electric push rods (8) is fixedly connected with a first clamping plate (9), the first clamping plate (9) is slidingly connected in the inner cavity of the transverse groove (6), one end of the inner cavity of each of the plurality of longitudinal grooves (7) is fixedly installed with a second electric push rod (10), the output end of each of the plurality of second electric push rods (10) is fixedly connected with a second clamping plate (11), the second clamping plate (11) is slidingly connected in the inner cavity of the longitudinal groove (7), the middle of the bottom surface of the lifting plate (5) is fixedly installed with a first contact sensor (13), the bottom surface of the first contact sensor (13) is flush with the bottom surface of the lifting plate (5), and the inner side of the bottom end of each of the first clamping plate (9) and the second clamping plate (11) is provided with a protective pad (12).

2. The automatic right-rotation feeding device of a full-automatic screen printing machine according to claim 1, characterized in that: The lifting mechanism (3) comprises a rotating column (14) fixedly connected to the output shaft end of the electromagnetic brake motor (2), the rotating column (14) is provided with a lifting groove (15), the inner cavity of the lifting groove (15) is rotatably connected with a first screw rod (16), the outer side of the first screw rod (16) is threadedly sleeved with a lifting seat (17), the lifting seat (17) is fixedly installed with a third electric push rod (18), the output end of the third electric push rod (18) is connected with the lifting plate (5), the lifting seat (17) is fixedly installed with a distance measuring sensor (19), the top surface of the rotating column (14) is fixedly installed with a first servo motor (20), and the output shaft of the first servo motor (20) is connected with the top end of the first screw rod (16).

3. The automatic right-rotation feeding device of a full-automatic screen printing machine according to claim 2, characterized in that: The limiting mechanism (4) comprises a moving groove (28) formed on the outer side of the rotating column (14) and a second servo motor (21) fixedly installed at the top end of the rotating column (14), the inner cavity of the moving groove (28) is rotatably connected with a second screw rod (22), the output shaft of the second servo motor (21) is connected with the top end of the second screw rod (22), the outer side of the second screw rod (22) is threadedly sleeved with a moving block (23), and the end of the moving block (23) extends to the inner cavity of the lifting groove (15). The end of the moving block (23) is fixedly installed with a second contact sensor (24).

4. The automatic right-rotation feeding device of a full-automatic screen printing machine according to claim 1, characterized in that: The side of the bottom plate (1) is fixedly connected with a push handle (26), and the push handle (26) is fixedly installed with a control panel (27).

5. The automatic right-rotation feeding device of a full-automatic silk-screen printing machine according to claim 2, characterized in that: The inner wall of the lifting groove (15) and the side of the lifting seat (17) are attached.

6. The automatic right-rotation feeding device of a full-automatic screen printing machine according to claim 3, characterized in that: The inner wall of the moving groove (28) and the side of the moving block (23) are attached. The inner wall of the moving groove (28) and the side of the moving block (23) are attached.

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