Screen frame positioning device for screen printing of printed circuit board

Abstract

The utility model discloses a screen frame positioning device for screen printing of a printed circuit board, which comprises bin bodies and a positioning device body, the bin bodies are respectively arranged at the two ends of the positioning device body, adjusting bins are arranged at the two ends in the bin bodies, and screw rods are arranged in the adjusting bins. The two ends of the threaded rod are fixedly connected with the inner wall of the adjusting bin through bearings, a protection bin is arranged in the middle of the interior of the bin body, a motor is arranged in the protection bin, the output end of the motor is fixedly connected with the driving end of the threaded rod, a guide groove is formed in the upper end of the adjusting bin, and the threaded rod is in threaded fit with a threaded seat. A longitudinal plate is connected between the threaded seats, the two ends of the longitudinal plate are slidably connected with the guide grooves, and second connecting seats are arranged on the side portions of the longitudinal plate. The screen frame can be easily positioned, and the clamping stability is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of screen frame, concretely to a screen frame positioning device for printing circuit board silk screen printing. BACKGROUND

[0002] Circuit board silk screen printing refers to a printing process of printing characters, numbers, graphics and signs and other information on the surface of a circuit board, which is of great significance to the assembly, maintenance and use of the circuit board. The common circuit board silk screen printing machine on the market usually has a groove-shaped screen frame, which is clamped after being inserted into the silk screen printing machine for silk screen printing. Therefore, the screen frame positioning device for printing circuit board silk screen printing plays an important role.

[0003] The conventional screen frame positioning device for printing circuit board silk screen printing has some drawbacks. First, it is not easy to position the screen frame, and manual positioning is inefficient and prone to errors. Second, the clamping stability of the screen frame positioning is poor. SUMMARY

[0004] The utility model aims at providing a screen frame positioning device for printing circuit board silk screen printing to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a screen frame positioning device for printing circuit board silk screen printing, comprising a warehouse body and a positioning device body, the warehouse body is arranged at both ends of the positioning device body, both ends of the inside of the warehouse body are provided with an adjusting warehouse, and the inside of the adjusting warehouse is provided with a screw rod, both ends of the screw rod are fixedly connected between the inner wall of the adjusting warehouse through bearings, the middle of the inside of the warehouse body is provided with a protection warehouse, the inside of the protection warehouse is provided with a motor, and the output end of the motor is fixedly connected with the driving end of the screw rod, the upper end of the adjusting warehouse is provided with a guide groove.

[0006] Preferably, the screw rod is threadedly connected with a threaded seat, and the threaded seats are connected with a longitudinal plate, and both ends of the longitudinal plate are slidingly connected with the guide grooves.

[0007] Preferably, the side of the longitudinal plate is provided with a connecting seat two, and the connecting seat two is connected with a clamping seat two.

[0008] Preferably, the inside of both ends of the longitudinal plate is provided with a let -alone slot, and the let -alone slot is slidingly connected with a transverse plate.

[0009] Preferably, both ends of the transverse plate are connected with a limiting block, the upper end of the positioning device body is provided with a limiting groove corresponding to the limiting block, and the limiting groove and the limiting block are slidingly connected.

[0010] Preferably, the upper end of the positioning device body is fixed with a fixing seat, and the two sides of the fixing seat are fixed with electric push rods, and one end of the electric push rod is fixedly connected with the limiting block.

[0011] Preferably, the side of the transverse plate is provided with a connecting seat one, and the connecting seat one is connected with a clamping seat one.

[0012] Preferably, the transverse plate and the longitudinal plate are provided with a screen frame, and the screen frame is clamped between the clamping seat one and the clamping seat two.

[0013] Compared with the prior art, the positioning device has the advantages that the screen frame is easy to position, and the clamping stability is good.

[0014] (1) under the driving of the motor, the screw rod is driven to rotate synchronously, and then the threaded seat moves along the screw rod, so that the threaded seats move away from or close to each other, and the longitudinal plates are driven to move away from or close to each other, and the clamping can be adjusted according to the width of the screen frame, which is also beneficial to the taking and placing of the screen frame, then the electric push rod is extended and retracted, and the limiting block is moved, and then the transverse plates are driven to move away from or close to each other, and the clamping can be adjusted according to the length of the screen frame, which is beneficial to the positioning of the screen frame, and at the same time, the clamping seat one and the clamping seat two are the same size, and the clamping seat one and the clamping seat two cooperate with each other, so that the screen frame is clamped and positioned, and the screen frame is easy to position.

[0015] (2) the longitudinal plate is limited by the yielding slot, which is beneficial to the stable height of the transverse plate when sliding, avoids the inclination of one end, and the positioning device body is limited by the limiting slot, which avoids the dislocation of the transverse plate, is beneficial to the stable movement of the transverse plate, and has good clamping stability. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a top view of the sectional structure of the utility model;

[0017] Figure 2 It is a front view of the structure of the utility model;

[0018] Figure 3 It is a structure diagram of the bin body and the screw rod of the utility model;

[0019] Figure 4 It is a structure diagram of the transverse plate and the limiting block of the utility model;

[0020] Figure 5 It is a structure diagram of the longitudinal plate and the threaded seat of the utility model;

[0021] In the figure: 1, fixed seat; 2, electric push rod; 3, positioning device body; 4, limiting groove; 5, limiting block; 6, transverse plate; 7, threaded seat; 8, warehouse body; 9, screw; 10, motor; 11, screen frame; 12, clamping seat one; 13, clamping seat two; 14, let go of slot; 15, adjusting warehouse; 16, protective warehouse; 17, guide groove; 18, connecting seat one; 19, connecting seat two; 20, longitudinal plate. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Please refer to Figures 1-5 An embodiment provided by the utility model: a screen frame positioning device for printing circuit board screen printing, including warehouse body 8 and positioning device body 3, warehouse body 8 is arranged at both ends of positioning device body 3 respectively, both ends in warehouse body 8 are provided with adjusting warehouse 15, and the inside of adjusting warehouse 15 is provided with screw 9, and both ends of screw 9 are fixedly connected between the inner wall of adjusting warehouse 15 through bearing, the middle in warehouse body 8 is provided with protective warehouse 16, and the inside of protective warehouse 16 is provided with motor 10, and the output end of motor 10 is fixedly connected with the driving end of screw 9, the upper end of adjusting warehouse 15 is provided with guide groove 17, and screw 9 is threadedly connected with threaded seat 7;

[0024] When using, under the driving of motor 10, screw 9 is driven to rotate synchronously, and then threaded seat 7 is driven to move along screw 9, so that threaded seat 7 moves away from each other or moves close to each other;

[0025] Longitudinal plate 20 is connected between threaded seat 7, and both ends of longitudinal plate 20 are slidably connected with guide groove 17;

[0026] When using, threaded seat 7 drives longitudinal plate 20 to move away from each other or move close to each other, the clamping can be adjusted according to the width of screen frame 11, and it is also beneficial to take and place screen frame 11;

[0027] The inside of both ends of longitudinal plate 20 is provided with let go of slot 14, and transverse plate 6 is slidably connected in let go of slot 14;

[0028] When using, longitudinal plate 20 limits transverse plate 6 through let go of slot 14, which is beneficial to the height stability of transverse plate 6 when sliding, and avoids one end to incline;

[0029] The upper end of positioning device body 3 is fixed with fixed seat 1, both sides of fixed seat 1 are fixed with electric push rod 2, and one end of electric push rod 2 is fixedly connected with limiting block 5.

[0030] When in use, the electric push rod 2 is extended and retracted, driving the limit block 5 to move, and then driving the transverse plates 6 to move away from or closer to each other. The clamping can be adjusted according to the length of the screen frame 11, which is conducive to the positioning of the screen frame 11;

[0031] Both ends of the transverse plate 6 are connected to the limit blocks 5. The upper end of the positioning device body 3 is provided with a limit slot 4 corresponding to the limit block 5, and the limit slot 4 is slidably connected to the limit block 5.

[0032] When in use, the positioning device body 3 limits the limit block 5 through the limit slot 4 to avoid the transverse plate 6 from being misplaced, which is conducive to the stable movement of the transverse plate 6;

[0033] The sides of the transverse plates 6 are each provided with a connecting seat 18, to which the clamping seat 12 is connected. The sides of the longitudinal plates 20 are each provided with a connecting seat 2 19, to which the clamping seat 2 13 is connected. A screen frame 11 is provided between the transverse plates 6 and the longitudinal plates 20, and is clamped between the clamping seats 12 and 13.

[0034] When in use, the clamping seat 12 and the clamping seat 2 13 have the same size, and the clamping seat 12 and the clamping seat 2 13 cooperate with each other, thereby clamping and positioning the screen frame 11;

[0035] When the embodiment of the present application is in use: first, driven by the motor 10, the screw 9 is driven to rotate synchronously, and then the threaded seat 7 is driven to move along the screw 9, so that the threaded seats 7 move away from or close to each other, and the threaded seat 7 drives the longitudinal plates 20 to move away from or close to each other, and the clamping can be adjusted according to the width of the screen frame 11, which is also convenient for taking and placing the screen frame 11. In addition, the longitudinal plate 20 limits the transverse plate 6 through the clearance groove 14, which is conducive to the high stability of the transverse plate 6 when sliding, avoiding tilting at one end, and then the electric push rod 2 is extended and retracted, driving The limit block 5 moves, thereby driving the transverse plates 6 to move away from or closer to each other. The clamping can be adjusted according to the length of the screen frame 11, which is beneficial to the positioning of the screen frame 11. In addition, the positioning device body 3 limits the limit block 5 through the limit groove 4 to avoid misalignment of the transverse plate 6, which is beneficial to the stable movement of the transverse plate 6. At the same time, the clamping seat 12 and the clamping seat 2 13 are the same size, and the clamping seat 12 and the clamping seat 2 13 cooperate with each other, thereby clamping and positioning the screen frame 11. In summary, the positioning device is easy to position the screen frame and has good clamping stability.

Claims

1. A screen frame positioning device for screen printing of printed wiring boards, characterized by: Including warehouse body (8) and positioning device body (3), warehouse body (8) is arranged at both ends of positioning device body (3) respectively, both ends of the inside of warehouse body (8) are provided with adjusting warehouse (15), and the inside of adjusting warehouse (15) is provided with screw rod (9), and both ends of screw rod (9) are fixedly connected between the inner wall of adjusting warehouse (15) through bearing, the middle of the inside of warehouse body (8) is provided with protection warehouse (16), and the inside of protection warehouse (16) is provided with motor (10), and the output end of motor (10) is fixedly connected with the driving end of screw rod (9), the upper end of adjusting warehouse (15) is provided with guide groove (17).

2. A screen positioning device for screen printing of printed wiring boards according to claim 1, characterized in that: Threaded seat (7) is threadedly connected on screw rod (9), and longitudinal plate (20) is connected between threaded seat (7), and both ends of longitudinal plate (20) are slidably connected with guide groove (17).

3. A screen positioning device for screen printing of printed wiring boards according to claim 2, wherein: The side of longitudinal plate (20) is provided with connecting seat two (19), and clamping seat two (13) is connected on connecting seat two (19).

4. A screen positioning device for screen printing of printed wiring boards according to claim 3, wherein: The inside of both ends of longitudinal plate (20) is provided with let slot (14), and transverse plate (6) is slidably connected in let slot (14).

5. A screen positioning device for screen printing of printed wiring boards according to claim 4, wherein: Both ends of transverse plate (6) are connected with limiting block (5), the upper end of positioning device body (3) is provided with limiting slot (4) corresponding to limiting block (5), and limiting slot (4) and limiting block (5) are slidably connected.

6. A screen positioning device for screen printing of printed wiring boards according to claim 5, wherein: The upper end of positioning device body (3) is fixed with fixed seat (1), both sides of fixed seat (1) are fixed with electric push rod (2), and one end of electric push rod (2) is fixedly connected with limiting block (5).

7. A screen positioning device for screen printing of printed wiring boards as defined in claim 5 wherein: The side of transverse plate (6) is provided with connecting seat one (18), and clamping seat one (12) is connected on connecting seat one (18).

8. A screen positioning device for screen printing of printed wiring boards according to claim 7, characterized in that: Net frame (11) is arranged between transverse plate (6) and longitudinal plate (20), and net frame (11) is clamped between clamping seat one (12) and clamping seat two (13).

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