Solder paste printing device for circuit board production

Abstract

The utility model is applicable to the technical field of circuit board solder paste printing, and provides a solder paste printing device for circuit board production, which comprises a printing box, a printing steel mesh is arranged in the printing box, and a conveying assembly moving along the vertical direction is arranged at the bottom of an inner cavity of the printing box. The two ends of the conveying assembly movably extend out of the printing box, and a printing scraper capable of making contact with the upper surface of the printing steel mesh is arranged on the upper portion of an inner cavity of the printing box. According to the solder paste printing device for circuit board production, after a printing steel mesh is taken out and placed in a placement seat, a lower cleaning brush roller ascends to make contact with the lower surface of a circuit board, an upper cleaning brush roller and the lower cleaning brush roller rotate, the two faces of the circuit board are brushed, and after water flow is sprayed out in cooperation with a spraying disc, the printing steel mesh is placed in the placement seat. And the surface of the circuit board is cleaned and processed, so that solder paste printing and processing of the circuit board are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of circuit board tin paste printing, especially relates to a tin paste printing device for circuit board production. BACKGROUND

[0002] The circuit board is a kind of substrate for connecting and supporting electronic components, and it is printed with conductive circuit and the mounting position of electronic components, is indispensable component in electronic equipment, carries the signal transmission and power supply between electronic components, and circuit board manufacturing is the process that electronic components are formed into electronic product with specific function by design, manufacture and assembly, including design, manufacture, assembly and the like.

[0003] Tin paste printing is the process that certain tin paste is printed on the circuit board according to requirements, and it provides solder for the soldering process in reflow soldering stage, but the existing tin paste printing device for circuit board production, after use, to avoid tin paste from blocking printing steel net, staff needs to manually clean printing steel net, and cleaning operation is relatively inconvenient, and manual cleaning can not completely clean, which affects the subsequent printing quality of device. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of tin paste printing device for circuit board production, to solve the existing tin paste printing device for circuit board production, after use, staff needs to manually clean printing steel net, and the problem of relatively inconvenient cleaning operation.

[0005] The utility model is realized as follows, a kind of tin paste printing device for circuit board production, including printing box, the inside of printing box is provided with printing steel net, the bottom of printing box inner chamber is provided with the conveying assembly moving along vertical direction, the both ends of conveying assembly are movably extended to the outside of printing box, the upper portion of printing box inner chamber is provided with the printing doctor blade that can be contacted with the upper surface of printing steel net;

[0006] The bottom of printing box is fixedly connected with cleaning box, the both ends of the middle part of cleaning box inner chamber are fixedly connected with placing seat, the top of cleaning box inner chamber is fixedly connected with spray tray, the top of cleaning box inner chamber is rotatably provided with spray tray, the upper portion of cleaning box inner chamber is rotatably provided with upper cleaning brush roller, the lower portion of cleaning box inner chamber is rotatably provided with lower cleaning brush roller that can be lifted and moved, the surface of cleaning box and printing box is provided with box door.

[0007] Preferably, the top of the inner wall of the printing box is fixedly connected with an electric sliding rail, the bottom of the sliding part driven by the electric sliding rail is vertically fixedly connected with a plurality of second electric telescopic rods, and the printing doctor blade is fixedly connected to the bottom end of the second electric telescopic rod.

[0008] Preferably, both ends of the middle part of the printing box cavity are fixedly connected with a U-shaped seat matched with the printing steel mesh, the top of the inner wall of the U-shaped seat is fixedly connected with a third electric telescopic rod in the vertical direction, and the bottom end of the third electric telescopic rod is fixedly connected with a clamping block.

[0009] Preferably, the bottom of the inner wall of the printing box is fixedly connected with a plurality of first electric telescopic rods in the vertical direction, the conveying assembly is fixedly connected to the top end of the first electric telescopic rod, and the two end faces of the printing box are both vertically provided with a movable opening for the movement of the conveying assembly.

[0010] Preferably, one end face of the printing box is fixedly connected with a protective shell, the bottom of the inner wall of the protective shell is fixedly connected with a fourth electric telescopic rod in the vertical direction, the top end of the fourth electric telescopic rod is provided with a first motor, the output shaft of the first motor is fixedly connected with one end of the lower cleaning brush roller, the top of the inner cavity of the protective shell is fixedly connected with an upper cleaning brush roller, and one end of the upper cleaning brush roller is fixedly connected with the upper cleaning brush roller.

[0011] Preferably, the bottom of the side wall of the cleaning box is communicated with a drain pipe, the surface of the spraying disc is communicated with a water injection pipe, the other end of the water injection pipe extends to the outside of the cleaning box, the drain pipe and the outer end of the water injection pipe are both provided with a flange plate, and the side wall of the cleaning box is provided with an opening for the movement of the lower cleaning brush roller. Beneficial effects

[0012] Compared with the prior art, the beneficial effects of the tin paste printing device for circuit board production are as follows: after the printing steel mesh is placed in the inner cavity of the printing box, the surface of the printing steel mesh is smeared with tin paste, the conveying assembly conveys the circuit board to the corresponding position of the printing steel mesh, the conveying assembly rises to drive the circuit board to abut against the lower surface of the printing steel mesh, the printing scraper descends to contact the surface of the printing steel mesh and then translates, so that the tin paste can be smoothed, the circuit board is printed and processed by the way of missing printing, after the device is used, the printing steel mesh can be taken out, after the printing steel mesh is placed in the inner part of the placing seat, the lower cleaning brush roller rises to contact the lower surface of the circuit board, the upper cleaning brush roller and the lower cleaning brush roller rotate to brush the two surfaces of the circuit board, and the spraying disc sprays water flow to clean the surface of the circuit board, so that the cleaning effect is better and more thorough, the labor of the workers is reduced, and the tin paste printing and processing of the circuit board are facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a front structure schematic view of the utility model;

[0014] Figure 2 It is a front sectional structure schematic view of the utility model;

[0015] Figure 3 The utility model discloses Figure 2 Partial close -up drawing at A in the middle.

[0016] In the drawing: 1, print case;2, first electric telescopic link;3, conveying assembly;4, electric slide rail;5, moving seat;6, second electric telescopic link;7, print doctor blade;8, movable mouth;9, U -shaped seat;10, print steel net;11, third electric telescopic link;12, clamping block;13, cleaning tank;14, protective shell;15, fourth electric telescopic link;16, first motor;17, lower cleaning brush roller;18, second motor;19, upper cleaning brush roller;20, spray tray;21, placing seat;22, case door;23, water injection pipe;24, drain pipe;25, water injection pipe. Specific implementation

[0017] In order to make the utility model purposes, technical scheme and advantage more clearly, following combining with the drawing and example, the utility model carries out further detailed explanation. It should be understood that the specific example described here is only used to explain the utility model, and is not used to limit the utility model.

[0018] Please refer to Figures 1-3 The utility model provides a technical scheme: a kind of tin cream printing device for circuit board production, including print case 1, print steel net 10 is provided in the inside of print case 1, the bottom of print case 1 inner chamber is provided with conveying assembly 3 moving along vertical direction, both ends of conveying assembly 3 are movably extended to the outside of print case 1, the upper portion of print case 1 inner chamber is provided with print doctor blade 7 capable of being contacted with the upper surface of print steel net 10.

[0019] The bottom of print case 1 is fixedly connected with cleaning tank 13, both ends of the middle part in the inner chamber of cleaning tank 13 are fixedly connected with placing seat 21, the top of the inner chamber of cleaning tank 13 is fixedly connected with spray tray 20, the top of the inner chamber of cleaning tank 13 is rotatably provided with spray tray 20.

[0020] The upper portion of the inner chamber of cleaning tank 13 is rotatably provided with upper cleaning brush roller 19, the lower portion of the inner chamber of cleaning tank 13 is rotatably provided with lower cleaning brush roller 17 capable of lifting and moving, and the surface of cleaning tank 13 and print case 1 is provided with case door 22.

[0021] After print steel net 10 is placed in the inner chamber of print case 1, tin cream is applied to the surface of print steel net 10, conveying assembly 3 conveys circuit board to the corresponding position of print steel net 10, conveying assembly 3 rises to drive circuit board to abut against the lower surface of print steel net 10, print doctor blade 7 is lowered to contact the surface of print steel net 10 and then translates, so that tin cream is smoothed, and circuit board is printed and processed by missing printing.

[0022] After the device is used, the printing steel mesh 10 can be taken out, and after the printing steel mesh 10 is placed in the inside of the placing seat 21, the lower cleaning brush roller 17 is lifted to be in contact with the lower surface of the circuit board, the upper cleaning brush roller 19 and the lower cleaning brush roller 17 are rotated, the two surfaces of the circuit board are brushed, and the surface of the circuit board is cleaned after water flow is sprayed by the spraying disc 20.

[0023] The cleaning effect is better and more thorough, the labor of workers is reduced, and the tin paste printing processing of the circuit board is facilitated.

[0024] Further, the top of the inner wall of the printing box 1 is fixedly connected with an electric sliding rail 4, the bottom of the sliding part driven by the electric sliding rail 4 is vertically fixedly connected with a plurality of second electric telescopic rods 6, and the printing scraper 7 is transversely fixedly connected to the bottom end of the second electric telescopic rod 6.

[0025] In the embodiment, the electric sliding rail 4 drives the moving seat 5 to move, so that the printing scraper 7 can be used to flatten the tin paste, and the second electric telescopic rod 6 is telescopic, so that the printing scraper 7 can be lifted and moved.

[0026] Further, both ends of the middle part of the inner cavity of the printing box 1 are fixedly connected with U-shaped seats 9 matched with the printing steel mesh 10, the top of the inner wall of the U-shaped seat 9 is vertically fixedly connected with a third electric telescopic rod 11, and the bottom end of the third electric telescopic rod 11 is fixedly connected with a clamping block 12.

[0027] In the embodiment, the printing steel mesh 10 is placed between the two U-shaped seats 9, and then the third electric telescopic rod 11 is elongated to drive the clamping block 12 to abut against the upper surface of the printing steel mesh 10, so that the printing steel mesh 10 is fixed, and the stability in the printing process is improved.

[0028] Further, the bottom of the inner wall of the printing box 1 is vertically fixedly connected with a plurality of first electric telescopic rods 2, the conveying assembly 3 is fixedly connected to the top end of the first electric telescopic rod 2, and the two end faces of the printing box 1 are vertically provided with movable openings 8 for the movement of the conveying assembly 3.

[0029] In the embodiment, the conveying assembly 3 is a prior art, which will not be described here. The conveying assembly 3 facilitates automatic feeding and discharging of the circuit board.

[0030] Further, one end face of the printing box 1 is fixedly connected with a protective shell 14, the bottom of the inner wall of the protective shell 14 is vertically fixedly connected with a fourth electric telescopic rod 15, the top end of the fourth electric telescopic rod 15 is provided with a first motor 16, one end of the lower cleaning brush roller 17 is fixedly connected with the output shaft of the first motor 16, the top of the inner cavity of the protective shell 14 is fixedly connected with a second motor 18, and one end of the upper cleaning brush roller 19 is fixedly connected with the second motor 18.

[0031] In the embodiment, the first motor 16 drives the lower cleaning brush roller 17 to rotate, the second motor 18 drives the upper cleaning brush roller 19 to rotate, and the fourth electric telescopic rod 15 drives the lower cleaning brush roller 17 to ascend or descend, thereby facilitating the cleaning operation of the printing steel mesh 10.

[0032] Further, the bottom of the side wall of the cleaning box 13 is communicated with a drain pipe 24, the surface of the spraying disc 20 is communicated with a water injection pipe 23, the other end of the water injection pipe 23 extends to the outside of the cleaning box 13, the drain pipe 24 and the outer end of the water injection pipe 23 are both provided with flanges, and the side wall of the cleaning box 13 is provided with an opening for the movement of the lower cleaning brush roller 17.

[0033] In the embodiment, the water injection pipe 23 facilitates the water injection of the external water injection equipment into the spraying disc 20, and the spraying disc 20 facilitates the spraying cleaning operation, the drain pipe 24 is provided with a valve, and the drain pipe 24 facilitates the discharge of the waste water generated in the cleaning operation.

[0034] The working principle and use process of the utility model are as follows: after the utility model is installed, the printing steel mesh 10 is placed in the inner cavity of the printing box 1, tin paste is applied to the surface of the printing steel mesh 10, the circuit board is conveyed to the corresponding position of the printing steel mesh 10 by the conveying assembly 3, the conveying assembly 3 ascends to drive the circuit board to abut against the lower surface of the printing steel mesh 10, the printing doctor blade 7 is lowered to contact the surface of the printing steel mesh 10 and then is translated, thereby the tin paste is leveled, the circuit board is printed by the way of missing printing, after the use of the device, the printing steel mesh 10 is taken out, the printing steel mesh 10 is placed in the inner cavity of the placing seat 21, the lower cleaning brush roller 17 ascends to contact the lower surface of the circuit board, the upper cleaning brush roller 19 and the lower cleaning brush roller 17 rotate to brush the two surfaces of the circuit board, and the spraying disc 20 sprays water to clean the surface of the circuit board.

[0035] The above merely describes the preferred embodiment of the utility model, and is not used to limit the utility model, any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A tin paste printing device for a circuit board production, comprising a printing box (1), characterized in that: The inside of the printing box (1) is provided with a printing steel mesh (10), the bottom of the inner cavity of the printing box (1) is provided with a conveying assembly (3) moving in the vertical direction, both ends of the conveying assembly (3) are movably extended to the outside of the printing box (1), and the upper portion of the inner cavity of the printing box (1) is provided with a printing doctor blade (7) capable of being in contact with the upper surface of the printing steel mesh (10). The bottom of the printing box (1) is fixedly connected with a cleaning box (13), both ends of the middle portion of the inner cavity of the cleaning box (13) are fixedly connected with a placing seat (21), the top of the inner cavity of the cleaning box (13) is fixedly connected with a spraying disc (20), the top of the inner cavity of the cleaning box (13) is rotatably provided with the spraying disc (20), the upper portion of the inner cavity of the cleaning box (13) is rotatably provided with an upper cleaning brush roller (19), the lower portion of the inner cavity of the cleaning box (13) is rotatably provided with a lower cleaning brush roller (17) capable of moving up and down, and the surfaces of the cleaning box (13) and the printing box (1) are both provided with a box door (22).

2. The tin paste printing device for a circuit board production according to claim 1, wherein: The top of the inner wall of the printing box (1) is fixedly connected with an electric sliding rail (4), the bottom of the sliding part driven by the electric sliding rail (4) is vertically fixedly connected with a plurality of second electric telescopic rods (6), and the printing doctor blade (7) is fixedly connected to the bottom end of the second electric telescopic rod (6).

3. The tin paste printing device for a circuit board production as claimed in claim 1, wherein: Both ends of the middle portion of the inner cavity of the printing box (1) are fixedly connected with a U-shaped seat (9) matched with the printing steel mesh (10), the top of the inner wall of the U-shaped seat (9) is vertically fixedly connected with a third electric telescopic rod (11), and the bottom end of the third electric telescopic rod (11) is fixedly connected with a clamping block (12).

4. The tin paste printing device for a circuit board production as claimed in claim 1, wherein: The bottom of the inner wall of the printing box (1) is vertically fixedly connected with a plurality of first electric telescopic rods (2), the conveying assembly (3) is fixedly connected to the top end of the first electric telescopic rod (2), and both end faces of the printing box (1) are vertically provided with movable openings (8) for the movement of the conveying assembly (3).

5. The tin paste printing device for a circuit board production according to claim 1, wherein: One end face of the printing box (1) is fixedly connected with a protective shell (14), the bottom of the inner wall of the protective shell (14) is vertically fixedly connected with a fourth electric telescopic rod (15), the top end of the fourth electric telescopic rod (15) is provided with a first motor (16), one end of the lower cleaning brush roller (17) is fixedly connected with an output shaft of the first motor (16), the top of the inner cavity of the protective shell (14) is fixedly connected with a second motor (18), and one end of the upper cleaning brush roller (19) is fixedly connected with the second motor (18).

6. The tin paste printing device for a circuit board production as claimed in claim 1, wherein: The bottom of the side wall of the cleaning box (13) is communicated with a drain pipe (24), the surface of the spraying disc (20) is communicated with a water injection pipe (23), the other end of the water injection pipe (23) extends to the outside of the cleaning box (13), the outer ends of the drain pipe (24) and the water injection pipe (23) are both provided with flanges, and the side wall of the cleaning box (13) is provided with an opening for the movement of the lower cleaning brush roller (17).

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