CN210501834U

CN210501834U - Prevention of seepage printing platform of circuit board screen printing machine

Info

Publication number: CN210501834U
Application number: CN201920674319.0U
Authority: CN
Inventors: 谢武俊
Original assignee: Shenzhen Lingchuang Precision Machinery Co ltd
Current assignee: Shenzhen Lingchuang Precision Machinery Co ltd
Priority date: 2019-05-10
Filing date: 2019-05-10
Publication date: 2020-05-12
Anticipated expiration: 2029-05-10

Abstract

The utility model discloses an anti-seepage printing platform of a circuit board screen printing machine, which comprises a printing table, a pad film and a pad film conveying mechanism arranged below the printing table; the cushion film conveying mechanism comprises a material discharging roll for releasing the cushion film, a material collecting roll for collecting waste materials and a rotation driving mechanism for driving the material collecting roll to rotate, and the material discharging roll and the material collecting roll are both rotatably connected to a rack below the printing table; the pad membrane on the blowing book is released from the blowing book, and after the upper surface of printing platform, retrieve to the receipts material and roll up, the top fixed connection of pad membrane is on the receipts material book. The utility model discloses can ensure that printing ink can not remain on the printing table, avoid the not relevant circuit of circuit board substrate bottom surface to be stained with and attach printing ink, avoid the short circuit, improve the printing quality of circuit board.

Description

Prevention of seepage printing platform of circuit board screen printing machine

Technical Field

The utility model relates to a circuit board printing machine, concretely relates to circuit board screen printing machine's prevention of seepage passes through print platform.

Background

In the general process of printing the circuit board in the market, the base material is firstly carried to a printing disc platform through a loading and carrying mechanism, then the conductive ink is printed in circuit holes of the base material through a screen printing mechanism, flows to the bottom surface of the base material through the circuit holes and is communicated with corresponding circuits, so that the corresponding circuit communication of the top surface and the bottom surface of the base material is realized, and finally, drying or other subsequent treatment is carried out to finish the printing of the circuit board. When the substrate is printed on the printing platform, because the substrate is provided with a plurality of circuit holes, the following problems can occur when printing is carried out:

1. the ink flowing to the bottom of the substrate through the circuit hole is gradually accumulated on the printing platform and is easily communicated with other unrelated circuits on the bottom surface of the subsequent substrate, so that waste products are easily formed.

2. Because the position of the circuit hole of the same batch of circuit board base materials is the same, residual ink accumulated on the printing platform is easy to accumulate, and the printing platform is uneven, so that the base materials cannot be kept flat during printing, and normal screen printing is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome prior art's is not enough, provides a circuit board screen printing machine's prevention of seepage printing station that passes through, and this printing station can ensure that the printing bench can not remain printing ink, avoids the circuit intercommunication that the circuit board base material is not relevant to can guarantee the roughness of base material when printing, thereby improve the printing quality of circuit board.

The purpose of the utility model is realized through the following technical scheme:

an anti-seepage printing platform of a circuit board screen printer is characterized by comprising a printing table, a pad film and a pad film conveying mechanism arranged below the printing table; the cushion film conveying mechanism comprises a material discharging roll for releasing the cushion film, a material collecting roll for collecting waste materials and a rotation driving mechanism for driving the material collecting roll to rotate, and the material discharging roll and the material collecting roll are both rotatably connected to a rack below the printing table; the pad membrane on the blowing book is released from the blowing book, and after the upper surface of printing platform, retrieve to the receipts material and roll up, the top fixed connection of pad membrane is on the receipts material book.

The anti-seepage printing platform of the circuit board screen printer has the working principle that:

before the circuit board substrate to be processed is conveyed to the printing table for printing, the rotation driving mechanism drives the material receiving roll to rotate, so that the material discharging roll is pulled to rotate to release the pad film, the clean pad film covers the upper surface of the printing table, then the circuit board substrate to be processed is conveyed to the printing table, the bottom of the circuit board and the printing table are separated and are padded with the pad film, and during printing processing, the penetrated ink remains on the pad film and cannot be directly attached to the printing table; after the printed circuit board base material is completely processed and conveyed to leave the printing table, the rotating driving mechanism drives the material receiving roll to rotate and pulls the material discharging roll to rotate, so that the polluted pad film on the printing table is recovered to the material receiving roll, the material discharging roll continuously releases the clean pad film again and moves to the upper surface of the printing table to wait for the printed circuit board base material to be processed, and the like, and the clean pad film is padded on the upper surface of the printing table before each circuit board base material is conveyed to the printing table. Because during the printing process, be equipped with the pad membrane between circuit board substrate and the printing table to every circuit board substrate can all be renewed clean pad membrane on the printing table before carrying out the printing process, consequently can ensure that every circuit board substrate can not be polluted by remaining printing ink between its bottom and the printing table before the processing, and can not let remaining printing ink and other not relevant circuit intercommunication of substrate bottom surface, can also ensure the roughness of printing table simultaneously, be favorable to improving the printing quality of circuit board substrate.

The utility model discloses a preferred scheme, wherein, along the direction of movement of circuit board base material, the rear side of printing platform is equipped with the back guide roll, the front side of printing platform is equipped with preceding guide roll; the pad film is released from the discharging roll, and is recovered into the collecting roll after sequentially passing through the rear guide roll, the printing table and the front guide roll. Through the arrangement of the front guide roller and the rear guide roller, the pad film can be conveyed better, and the updating after the printing processing of the previous circuit board substrate is finished is facilitated.

Preferably, the top surface of the front guide roller, the top surface of the rear guide roller, and the upper surface of the printing table are located at the same height. This is more favorable to the transport of pad membrane and ensures that the pad membrane can lay flatly on the printing bench.

The utility model discloses a preferred scheme, along the moving direction of circuit board substrate, the material is rolled up and is set up in the place ahead of blowing material. Therefore, the moving direction of the pad film is consistent with that of the circuit board base material, the interference between the movement of the circuit board base material and the movement of the pad film is avoided, and the smooth conveying of the pad film is ensured.

The utility model discloses a preferred scheme is connected with damping device on the material roll of putting. Through damping device's setting, can avoid the material roll of putting to continue to rotate the release pad membrane along with inertia after accomplishing the release pad membrane, ensure to fill up the membrane and can take up the upper surface of setting at the printing station.

The utility model discloses a preferred scheme, it comprises motor and chain drive mechanism to rotate actuating mechanism, the motor is fixed to be set up in the frame, chain drive mechanism includes driving gear, driven gear and driving chain, the driving gear is connected with the power shaft of motor, the driven gear is connected with the end connection of the axis of rotation of receiving the material book, the driving chain encircles the setting between driving gear and driven gear. The rotation of the material collecting roll is realized through the motor and the toothed chain transmission mechanism, and the structure is simple.

Compared with the prior art, the utility model following beneficial effect has:

1. the utility model ensures that the printing ink permeating in the printing process remains on the pad membrane by arranging the clean pad membrane on the printing table, thereby ensuring the cleanness of the printing table; and before each circuit board base material moves to the printing station, the updated pad film can be replaced, so that the bottom of each circuit board base material is not stained with printing ink during printing processing, the short circuit of circuits which are not related to the bottom surface of the circuit board base material is avoided, and the printing quality is improved.

2. After each circuit board substrate finishes printing, the clean pad film is replaced on the printing table, so that the phenomenon that the participated printing ink is gradually accumulated is avoided, the flatness of the printing table is ensured, and the printing quality of the circuit board substrate is improved.

Drawings

Fig. 1-2 are schematic structural views of an anti-permeation printing platform of a circuit board printing machine according to the present invention, in which fig. 1 is a front view and fig. 2 is a perspective view.

Detailed Description

The present invention will be further described with reference to the following examples and drawings, but the embodiments of the present invention are not limited thereto.

Referring to fig. 1-2, the anti-permeation printing platform of the circuit board printing machine of the embodiment includes a printing table 4, and a pad film conveying mechanism disposed below the printing table 4; the cushion film conveying mechanism comprises a feeding roll 1 for releasing a cushion film 3, a receiving roll 2 for winding waste materials and a rotation driving mechanism for driving the receiving roll 2 to rotate, and the feeding roll 1 and the receiving roll 2 are both rotatably connected to a rack below a printing table 4; the pad film 3 on the material discharging roll 1 is released from the material discharging roll 1, and is recovered on the material collecting roll 2 after passing through the upper surface of the printing table 4, and the starting end of the pad film 3 is fixedly connected on the material collecting roll 2.

Referring to fig. 1-2, along the moving direction of the circuit board substrate, the rear side of the printing table 4 is provided with a rear guide roller 5, and the front side of the printing table 4 is provided with a front guide roller 6; the pad film 3 is released from the material discharging roll 1, passes through the rear guide roll 5, the printing table 4 and the front guide roll 6 in sequence, and is recovered into the material collecting roll 2. Through the arrangement of the front guide roller 6 and the rear guide roller 5, the pad film 3 can be conveyed better, and the updating after the printing processing of the previous circuit board substrate is finished is facilitated.

The top surface of the front guide roller 6, the top surface of the rear guide roller 5, and the upper surface of the printing table 4 are located at the same height. This further facilitates the transfer of the underlay film and ensures that the underlay film is laid flat on the printing table 4.

Referring to fig. 1 to 2, the material receiving roll 2 is disposed in front of the material discharging roll 1 along the moving direction of the circuit board substrate. Therefore, the moving direction of the pad film 3 is consistent with that of the circuit board base material, interference between the movement of the circuit board base material and the movement of the pad film 3 is avoided, and smooth conveying of the pad film 3 is ensured.

Referring to fig. 1 to 2, a damping device is connected to the roll 1. Through damping device's setting, can avoid the material roll 1 to continue to rotate release pad membrane 3 along with inertia after accomplishing release pad membrane 3, ensure to fill up membrane 3 and can take up the upper surface of setting at printing station 4 by the tensioning.

Referring to fig. 1-2, the rotation driving mechanism is composed of a motor and a toothed chain transmission mechanism, the motor is fixedly arranged on the rack, the toothed chain transmission mechanism comprises a driving gear, a driven gear and a transmission chain, the driving gear is connected with a power shaft of the motor, the driven gear is connected with the end of a rotation shaft of the material receiving roll 2, and the transmission chain is arranged between the driving gear and the driven gear in a surrounding mode. The rotation of the material collecting coil 2 is realized through the motor and the gear chain transmission mechanism, and the structure is simple.

Referring to fig. 1-2, the working principle of the anti-permeation printing platform of the circuit board printing machine of the embodiment is as follows:

before the circuit board base material to be processed is conveyed to the printing table 4 to be printed, the rotation driving mechanism drives the material receiving roll 2 to rotate, so that the material discharging roll 1 is pulled to rotate to release the pad film 3, the clean pad film 3 covers the upper surface of the printing table 4, then the circuit board base material to be processed is conveyed to the printing table 4, the bottom of the circuit board and the printing table 4 are separated and are padded with the pad film 3, and during printing processing, the penetrated ink remains on the pad film 3 and cannot be directly attached to the printing table 4; after the printed circuit board substrate is processed and conveyed away from the printing table 4, the rotation driving mechanism drives the material receiving roll 2 to rotate and pulls the material discharging roll 1 to rotate, so that the polluted pad film 3 on the printing table 4 is recovered on the material receiving roll 2, the material discharging roll 1 continues to release the clean pad film 3 again and moves to the upper surface of the printing table 4 to wait for the printed processing of the next circuit board substrate, and the like, and the clean pad film 3 is padded on the upper surface of the printing table 4 before each circuit board substrate is conveyed to the printing table 4. Because during the printing process, be equipped with pad membrane 3 between circuit board substrate and print table 4, and every circuit board substrate can all be renewed clean pad membrane 3 on print table 4 before carrying out the printing process, consequently can ensure that every circuit board substrate can not be polluted by remaining printing ink between its bottom and print table 4 before the processing, and can not let remaining printing ink and other not relevant circuit intercommunication of circuit board substrate bottom surface, can also ensure the roughness of print table 4 simultaneously, be favorable to improving the printing quality of circuit board substrate.

The above is the preferred embodiment of the present invention, but the embodiment of the present invention is not limited by the above, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.

Claims

1. An anti-seepage printing platform of a circuit board screen printer is characterized by comprising a printing table, a pad film and a pad film conveying mechanism arranged below the printing table; the cushion film conveying mechanism comprises a material discharging roll for releasing the cushion film, a material collecting roll for collecting waste materials and a rotation driving mechanism for driving the material collecting roll to rotate, and the material discharging roll and the material collecting roll are both rotatably connected to a rack below the printing table; the pad membrane on the blowing book is released from the blowing book, and after the upper surface of printing platform, retrieve to the receipts material and roll up, the top fixed connection of pad membrane is on the receipts material book.

2. The impermeable printing platform of a circuit board screen printing machine according to claim 1, wherein along the moving direction of the circuit board substrate, the rear side of the printing table is provided with a rear guide roller, and the front side of the printing table is provided with a front guide roller; the pad film is released from the discharging roll, and is recovered into the collecting roll after sequentially passing through the rear guide roll, the printing table and the front guide roll.

3. The impervious printing platform of a circuit board screen printing machine according to claim 2, wherein the top surface of the front guide roller, the top surface of the rear guide roller and the upper surface of the printing table are located at the same height.

4. The impermeable printing platform of a circuit board screen printing machine according to claim 1, characterised in that the stock roll is arranged in front of the stock roll in the direction of movement of the circuit board substrate.

5. The impermeable printing platform of a circuit board screen printing machine according to claim 1, characterised in that a damping device is connected to the feed roll.

6. The anti-infiltration printing platform of the circuit board screen printing machine is characterized in that the rotary driving mechanism is composed of a motor and a toothed chain transmission mechanism, the motor is fixedly arranged on the frame, the toothed chain transmission mechanism comprises a driving gear, a driven gear and a transmission chain, the driving gear is connected with a power shaft of the motor, the driven gear is connected with the end part of a rotating shaft of the material collecting roll, and the transmission chain is arranged between the driving gear and the driven gear in a surrounding mode.