Turnover mechanism of screen printing plate coating machine

Abstract

The utility model discloses a turnover mechanism of a screen printing plate coating machine, which belongs to the technical field of screen printing plate coating machines and comprises two support frames, rotating rods are rotatably connected to the inner sides of the two support frames, rotating plates are fixedly connected to one ends of the two rotating rods, a sliding rod is fixedly sleeved between the two rotating plates, and the sliding rod is fixedly connected with the rotating plates. A two-way lead screw is rotationally connected between the two rotating plates, the outer sides of the two ends of the two-way lead screw are sleeved with clamping boxes in a threaded mode respectively, and the top ends of the clamping boxes are movably connected with the sliding rods in a sleeving mode. According to the screen printing plate clamping device, the second motor is used for driving the two-way lead screw to rotate, the distance between the two clamping boxes can be adjusted at will through threaded fit between the two-way lead screw and the clamping boxes, and therefore it is guaranteed that screen printing plates with different widths can be clamped and fixed, and in addition, the first motor is used for driving the rotating rod, the rotating plate, the clamping boxes and the screen printing plates to rotate; and the overturning of the screen printing plate is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of screen coating machines, and more specifically to a turnover mechanism of a screen coating machine. Background Art

[0002] Printing screens need to be coated with photosensitive adhesive during processing. There are two coating methods: manual coating and automatic coating. Manual coating is slow and the uniformity is difficult to control. Most of them use automatic coating. Screen coating machine is used to coat screens. Some screen coating machines need to coat both sides when coating photosensitive adhesive. Generally, the equipment is stopped after coating one side, and the screen is removed, rotated 180 degrees and then put back, which has low production efficiency.

[0003] After searching, the utility model patent with announcement number CN210675816U discloses a flipping mechanism of a screen coater, including a driving rod and a support shaft rotatably connected to the screen coater, a support plate is connected to the support shaft, one end of the driving rod is connected to the driving motor, and the other end is connected to a positioning sleeve through a positioning mechanism, the positioning sleeve is connected to the driving plate, a first clamping plate is hinged on the support plate, the first clamping plate is connected to the support plate through a first elastic member, a second clamping plate is hinged on the driving plate, the second clamping plate is connected to the driving plate through a second elastic member, a first clamping area for the screen is formed between the first clamping plate and the support plate, and a second clamping area is formed between the second clamping plate and the driving plate, so as to achieve the purpose of improving production efficiency.

[0004] However, the above patents still have the following shortcomings: the range of adjusting the distance between the support plate and the driving plate by the cooperation between the slide column and the positioning groove on the positioning sleeve is limited, and the convenience is poor; in addition, in the process of clamping the screen by the first clamping plate and the second clamping plate, it is not possible to ensure stable clamping of the screen side frames of different thicknesses. For this reason, we propose a flip mechanism for the screen coater. Utility Model Content

[0005] In view of the problems existing in the prior art, the utility model aims to provide a turnover mechanism for a screen coating machine.

[0006] In order to solve the above problems, the utility model adopts the following technical solutions:

[0007] The camshaft is an axially-coupled device for translating a plurality of moving parts of the plurality of moving parts into and out of the plurality of moving parts, wherein the plurality of moving parts are connected to each other via a threaded connection between the plurality of moving parts and a plurality of moving parts and a plurality of moving parts are connected to the plurality of moving parts.

[0008] As a preferred solution of the utility model, the clamping mechanism includes a screw threadedly sleeved on the front side of the clamping box, the end of the screw extends to the inner cavity of the clamping groove and is rotatably connected to a clamping plate, two limit rods are fixedly connected to the clamping plate, the ends of the two limit rods are respectively movably sleeved on the outside of the clamping box, and the end of the screw is fixedly connected to a knob.

[0009] As a preferred solution of the utility model, the fixing mechanism includes an electric push rod fixedly mounted on the outside of the support frame, the output shaft of the electric push rod extends to the inside of the support frame and is fixedly connected with a pin, and the end of the pin is movably sleeved into the inner cavity of the socket.

[0010] As a preferred solution of the utility model, a first elastic tube is fixedly connected between the two clamping boxes, a second elastic tube is fixedly connected between the clamping box and the rotating plate, and the first elastic tube and the second elastic tube are respectively sleeved on the outside of the bidirectional screw rod.

[0011] As a preferred solution of the utility model, the end surface of the clamping plate is in contact with the inner wall of the clamping groove.

[0012] As a preferred solution of the utility model, the outer diameter of the plug is equal to the inner diameter of the plug hole.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] (1) In the utility model, the second motor is used to drive the bidirectional screw to rotate, and the distance between the two clamping boxes can be adjusted arbitrarily through the threaded cooperation between the bidirectional screw and the clamping box, thereby ensuring that screens of different widths can be clamped and fixed, and the first motor is used to drive the rotating rod, rotating plate, clamping box and screen to rotate, thereby realizing the flipping of the screen, which is convenient and practical.

[0015] (2) In the utility model, the clamping plate can be driven to move by the threaded cooperation between the screw rod and the clamping box. When the side of the screen is inserted into the clamping groove, the clamping plate is used to clamp the side of the screen in the clamping groove, so that the clamping box and the screen are tightly connected together. At the same time, screens of different thicknesses can be clamped and fixed, thereby improving the practicality of the flipping mechanism of the screen coater. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the turning plate of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the clamping box of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the fixing mechanism of the utility model.

[0020] Description of the numbers in the figure:

[0021] 1. Support frame; 2. Rotating rod; 3. Rotating plate; 4. Bidirectional screw rod; 5. Clamping box; 6. Clamping groove; 7. Clamping mechanism; 8. Sliding rod; 9. Socket; 10. Fixing mechanism; 11. Second motor; 12. First motor; 13. Screw rod; 14. Clamping plate; 15. Knob; 16. Limit rod; 17. Electric push rod; 18. Latch; 19. First elastic tube; 20. Second elastic tube. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the 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 position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] Example:

[0026] See also Figure 1-4 , a flip mechanism of a screen coating machine comprises two support frames 1, the inner sides of the two support frames 1 are rotatably connected with rotating rods 2, one ends of the two rotating rods 2 are fixedly connected with rotating plates 3, a sliding rod 8 is fixedly sleeved between the two rotating plates 3, a bidirectional screw rod 4 is rotatably connected between the two rotating plates 3, the outer sides of the two ends of the bidirectional screw rod 4 are respectively threadedly sleeved with clamping boxes 5, the top of the clamping box 5 and the sliding rod 8 are movably sleeved, the sides of the two clamping boxes 5 are provided with clamping grooves 6, the front of the clamping box 5 is provided with a clamping mechanism 7, the outer side of a rotating plate 3 is provided with two jacks 9, two fixing mechanisms 10 are provided on one support frame 1, a second motor 11 is fixedly installed on the outer side of the other rotating plate 3, the output shaft of the second motor 11 is connected to the end of the bidirectional screw rod 4, a first motor 12 is fixedly installed on the outer side of the other support frame 1, and the output shaft of the first motor 12 is connected to the end of a rotating rod 2.

[0027] In this embodiment, the bottom ends of the two support frames 1 are fixedly connected to the coating machine.

[0028] For details, please refer to Figure 1 and Figure 3 The clamping mechanism 7 includes a screw 13 threadedly sleeved on the front side of the clamping box 5, the end of the screw 13 extends to the inner cavity of the clamping groove 6 and is rotatably connected to a clamping plate 14, and two limit rods 16 are fixedly connected to the clamping plate 14, and the ends of the two limit rods 16 are movably sleeved on the outside of the clamping box 5, and the end of the screw 13 is fixedly connected to a knob 15.

[0029] In this embodiment, the clamping plate 14 is limited by the cooperation between the limiting rod 16 and the clamping box 5 , so that the clamping plate 14 can only move along the axial direction of the screw rod 13 .

[0030] For details, please refer to Figure 1 , Figure 2 and Figure 4The fixing mechanism 10 includes an electric push rod 17 fixedly mounted on the outside of the support frame 1. The output shaft of the electric push rod 17 extends to the inside of the support frame 1 and is fixedly connected with a pin 18. The end of the pin 18 is movably sleeved into the inner cavity of the socket 9.

[0031] In this embodiment, the electric push rod 17 is used to drive the pin 18 to be inserted into the insertion hole 9 to fix the rotating plate 3 and the screen after rotation, so as to prevent the rotating plate 3 from rotating due to force applied to the screen during coating.

[0032] For details, please refer to Figure 1 and Figure 2 A first elastic tube 19 is fixedly connected between the two clamping boxes 5 , and a second elastic tube 20 is fixedly connected between the clamping box 5 and the rotating plate 3 . The first elastic tube 19 and the second elastic tube 20 are respectively sleeved on the outer side of the bidirectional screw rod 4 .

[0033] In this embodiment, the bidirectional lead screw 4 is protected by the first elastic tube 19 and the second elastic tube 20 to prevent the paint from falling onto the bidirectional lead screw 4 .

[0034] For details, please refer to Figure 3 , the end surface of the clamping plate 14 is in contact with the inner wall of the clamping groove 6.

[0035] In this embodiment, the inner wall of the clamping groove 6 is used to limit the clamping plate 14 to ensure the stability of the clamping plate 14 in the inner cavity of the clamping groove 6.

[0036] For details, please refer to Figure 2 and Figure 4 , the outer diameter of the latch pin 18 is equal to the inner diameter of the insertion hole 9.

[0037] In this embodiment, the stability of the insertion of the latch 18 into the insertion hole 9 is ensured, thereby ensuring the stability of fixing the rotating plate 3 .

[0038] Working principle: When in use, first take the screen and place it between the two clamping boxes 5, start the second motor 11 to drive the bidirectional screw 4 to rotate, and use the cooperation between the bidirectional screw 4 and the clamping box 5 to drive the two clamping boxes 5 to move closer to each other, so that the two sides of the screen are respectively extended into the clamping groove 6 on the side of the clamping box 5, and the bottom surface of the screen is in contact with the bottom surface of the inner cavity of the clamping groove 6, and then turn the knob 15 to drive the screw 13 to rotate, and use the cooperation between the screw 13 and the clamping box 5 to drive the clamping plate 14 to move, and use the clamping plate 14 to move the clamping box 5. The side of the screen in the groove 6 is squeezed and fixed, and then a scraper is used to coat one side of the screen. After one side of the screen is coated, the electric push rod 17 is started to drive the pin 18 to disengage from the inner cavity of the socket 9 to release the fixation of the turn plate 3, and the first motor 12 is started to drive the rotating rod 2, the turn plate 3 and the screen to rotate 180 degrees. At this time, the electric push rod 17 is started again to drive the pin 18 to insert into the socket 9 to fix the turn plate 3, and the other side of the screen is coated. Finally, when the coating is completed, the screen is removed from the two clamping boxes 5.

[0039] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the utility model according to the technical solution and improved ideas of the utility model, which should be included in the protection scope of the utility model.

Claims

1. A turning mechanism for a screen coating machine, comprising two support frames (1), characterized in that: The inner sides of the two support frames (1) are rotatably connected with a rotating rod (2), one end of the two rotating rods (2) is fixedly connected with a rotating plate (3), a sliding rod (8) is fixedly sleeved between the two rotating plates (3), a bidirectional screw rod (4) is rotatably connected between the two rotating plates (3), the outer sides of the two ends of the bidirectional screw rod (4) are respectively threadedly sleeved with a clamping box (5), the top of the clamping box (5) and the sliding rod (8) are movably sleeved, the sides of the two clamping boxes (5) are provided with a clamping groove (6), and the clamping box (5) ) is provided with a clamping mechanism (7) on the front side, two insertion holes (9) are provided on the outer side of one of the rotating plates (3), two fixing mechanisms (10) are provided on one of the supporting frames (1), a second motor (11) is fixedly installed on the outer side of the other rotating plate (3), the output shaft of the second motor (11) is connected to the end of the bidirectional screw rod (4), and a first motor (12) is fixedly installed on the outer side of the other supporting frame (1), the output shaft of the first motor (12) is connected to the end of a rotating rod (2).

2. The turning mechanism of the screen coating machine according to claim 1, characterized in that: The clamping mechanism (7) comprises a screw rod (13) threadedly sleeved on the front face of the clamping box (5), the end of the screw rod (13) extending to the inner cavity of the clamping groove (6) and rotatably connected to a clamping plate (14), two limit rods (16) being fixedly connected to the clamping plate (14), the ends of the two limit rods (16) being movably sleeved on the outside of the clamping box (5), and the end of the screw rod (13) being fixedly connected to a knob (15).

3. The turning mechanism of the screen coating machine according to claim 1, characterized in that: The fixing mechanism (10) comprises an electric push rod (17) fixedly mounted on the outside of the support frame (1), the output shaft of the electric push rod (17) extending to the inside of the support frame (1) and fixedly connected to a plug (18), the end of the plug (18) being movably sleeved into the inner cavity of the socket (9).

4. The turning mechanism of the screen coating machine according to claim 1, characterized in that: A first elastic tube (19) is fixedly connected between the two clamping boxes (5), and a second elastic tube (20) is fixedly connected between the clamping box (5) and the rotating plate (3), respectively. The first elastic tube (19) and the second elastic tube (20) are respectively sleeved on the outside of the bidirectional screw rod (4).

5. The turning mechanism of the screen coating machine according to claim 2, characterized in that: The end surface of the clamping plate (14) is in contact with the inner wall of the clamping groove (6).

6. The turning mechanism of the screen coating machine according to claim 3, characterized in that: The outer diameter of the latch pin (18) is equal to the inner diameter of the insertion hole (9).

Images