CN219960909U - Ion blowing structure of PCBA board and board feeding machine - Google Patents

Abstract

The utility model discloses an ion blowing structure of a PCBA board and a board feeding machine, comprising an ion blowing device, wherein static electricity is eliminated by neutralizing charges carried on an object, and the blowing port end of the ion blowing device corresponds to the connection position of the board feeding machine and a printing machine; the ion blowing device comprises an ion air bar, a solenoid valve assembly, an inductor assembly and an air source assembly, wherein the air source output end of the solenoid valve assembly is connected with the air source input end of the ion air bar, the air source assembly is connected with the solenoid valve assembly and used for inputting an air source for the solenoid valve assembly, the signal output end of the inductor assembly is connected with the solenoid valve assembly, and after the inductor assembly is triggered, a signal is sent to the solenoid valve assembly to open the air source assembly. The utility model uses the ion air bar with small volume to set the ion air bar at the connection position of the upper plate machine and the printing machine, adopts the air source of the printing machine, uses the inductor and the power supply at the end of the upper plate machine, simplifies the whole structure and has reasonable layout.

Description

Ion blowing structure of PCBA board and board feeding machine

Technical Field

The utility model relates to the field of PCB preparation, in particular to an ion blowing structure of a PCBA and a plate feeding machine.

Background

The PCB is an acronym for english (Printed Circuit Board) printed wiring board. The conductive pattern formed by forming a printed wiring, a printed element, or a combination of both on an insulating material according to a predetermined design is generally called a printed circuit. And conductive patterns, called printed wiring, on the insulating substrate that provide electrical connection between components. The printed circuit or finished board of printed wiring is thus called a printed wiring board, also called a printed board or printed circuit board.

When preparing PCBA circuit board, PCBA circuit board is through automatic board feeding to printer end of board feeding machine, carries out operation such as screen printing to PCBA board through the PCB printing machine, in PCB board printing process, the static that exists on the PCB board is in PCB screen printing very easily causes the accident, for example: electrostatic adsorption of dust can further affect the normal use performance of the printing material, and can cause blocking of meshes, so that pinholes and pits are formed on the screen printing pattern; the electrostatic discharge generates sparks, which are liable to cause fire, especially in flammable solvent applications, which are of particular concern; generally, static electricity does not generate electric shock hazard to human bodies, but the static electricity is frequently subjected to electric shock to adversely affect the psychology and emotion of operators.

Therefore, in the printing process of the PCB, static electricity on the surface needs to be removed first, and traditional equipment also proposes to utilize static electricity removing equipment to remove static electricity of the PCBA, but the whole equipment structure is often complicated, such as an external air source, an inductor, an external power source, larger static electricity removing equipment and the like, so that the use cost is high, the equipment structure is more complicated, and the structural design is unreasonable.

Disclosure of Invention

In order to solve the problems, the utility model provides the ion blowing structure of the PCBA board and the board feeding machine, which are characterized in that the ion blowing structure of the PCBA board is arranged at the connection position of the board feeding machine and the printing machine by utilizing the ion wind bar with small volume, the air source of the printing machine is adopted, and the inductor and the power source at the end of the board feeding machine are used, so that the whole structure is simplified, the layout is reasonable, dust and the like on the PCBA board can be removed at the arrangement position of the ion wind bar, and the problems of complex structure and unreasonable design of static removing equipment in the prior art can be effectively solved.

The utility model is realized by the following technical scheme: an ion blowing structure of PCBA board and board feeding machine, includes:

the ion blowing device is used for eliminating static electricity by neutralizing charges carried on an object, and the blowing port end of the ion blowing device corresponds to the connection position of the upper plate machine and the printing machine;

the ion blowing device comprises an ion air bar, a solenoid valve assembly, an inductor assembly and an air source assembly, wherein the air source output end of the solenoid valve assembly is connected with the air source input end of the ion air bar, the air source assembly is connected with the solenoid valve assembly and used for inputting an air source for the solenoid valve assembly, the signal output end of the inductor assembly is connected with the solenoid valve assembly, and after the inductor assembly is triggered, a signal is sent to the solenoid valve assembly to open the air source assembly.

As an optimal technical scheme, the air blowing port end of the ion air bar corresponds to the connection position of the upper plate machine and the printing machine, and blown ion air is used for neutralizing charges carried on objects.

As an optimal technical scheme, the ion wind rod is fixedly arranged on a baffle plate of the printing machine through a plurality of semicircular fixing pieces.

As the preferable technical scheme, the electromagnetic valve assembly comprises an electromagnetic valve and a relay, the relay is powered by the upper plate machine, the positive electrode wire and the negative electrode wire of the relay are electrically connected with the electromagnetic valve, the air outlet end of the electromagnetic valve is connected with the air source input end of the ion air bar through an air outlet pipeline, the air inlet end of the electromagnetic valve is connected with the air source output end of the air source assembly, and the sensor assembly is connected with the relay through a signal wire.

As the preferable technical scheme, the upper plate machine end is provided with an upper plate machine main board, the upper plate machine main board is electrically connected with a relay in the electromagnetic valve assembly through a power line, and the electromagnetic valve assembly is powered through an upper plate machine end power supply.

As the preferable technical scheme, the air source assembly comprises an output air source and a shunt head, wherein the output air source adopts a printer end air source, and the output end of the shunt head is connected with the air inlet end of the electromagnetic valve through a pipeline.

As the preferable technical scheme, the shunt head is a three-way shunt head, one end of the three-way shunt head is connected with an air source of the printer, and the other end of the three-way shunt head is used for being supplied to the printer.

As the preferable technical scheme, the sensor assembly comprises a sensor, wherein the sensor adopts an infrared sensor or a contact sensor, and is arranged at the output position of the upper plate machine, and the sensor is connected with a relay through a signal wire.

The utility model relates to a plate feeding machine, which comprises an ion blowing structure.

The beneficial effects of the utility model are as follows: the utility model adopts the small-volume ion wind bar to blow out positive and negative charges to neutralize charges on the PCB, thereby achieving the purpose of eliminating static electricity for the PCBA, being simple and convenient to install, and the wind opening is positioned at the connection position of the upper plate machine and the printing machine, and the static electricity can be eliminated, and simultaneously, the defects of the PCB can be blown off, so as to achieve better printing yield;

the externally-hung equipment is provided with the electromagnetic valve, the relay, the inductor and the ion wind rod, so that the assembly difficulty is low, the maintenance is convenient, and the cost is low;

according to the utility model, the ion wind rod is in butt joint with the inductor of the plate feeding machine, and through the combined action of the relay and the electromagnetic valve, when the PCB touches the inductor, the ion wind rod carries out blowing operation, and no plate passes through without blowing, so that the static electricity removing effect is not reduced, and meanwhile, the energy consumption of equipment is greatly reduced;

because the air source adopted by the utility model is the air source at the printer end, and the used sensor and the power source are both at the upper plate machine end, the whole structure is integrated with the upper plate machine and the printer, the whole structure is simplified, and the use of external accessories is reduced.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the whole structure of the present utility model;

FIG. 3 is a wiring diagram of an ion blow device of the present utility model;

FIG. 4 is a schematic diagram of the operation of the present utility model;

reference numerals illustrate:

1. plate feeding machine; 2. a printing machine; 3. a main board of the plate feeding machine; 4. a power line; 5. an inductor; 6. a connection position; 7. a fixing member; 8. an ion wind bar; 9. an air outlet pipe; 10. an electromagnetic valve; 11. a relay; 12. a shunt head; 13. and (5) a printing air source.

Detailed Description

All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.

In the description of the present utility model, it should be understood that the terms "one end," "the other end," "the outer side," "the upper," "the inner side," "the horizontal," "coaxial," "the center," "the end," "the length," "the outer end," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, in the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

Terms such as "upper," "lower," and the like used herein to refer to a spatially relative position are used for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The term spatially relative position may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or other orientations) and the spatially relative descriptors used herein interpreted accordingly

In the present utility model, unless explicitly specified and limited otherwise, the terms "disposed," "coupled," "connected," "plugged," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

As shown in fig. 1-2, the ion blowing structure of the PCBA board and the board loading machine of the utility model comprise an ion blowing device, which eliminates static electricity by neutralizing charges carried on an object, and the blowing port end of the ion blowing device corresponds to a connection position 6 of the board loading machine 1 and the printing machine 2;

the ion blowing device comprises an ion air bar 8, a solenoid valve 10 assembly, an inductor 5 assembly and an air source assembly, wherein the air source output end of the solenoid valve 10 assembly is connected with the air source input end of the ion air bar 8, the air source assembly is connected with the solenoid valve 10 assembly and used for inputting an air source for the solenoid valve 10 assembly, the signal output end of the inductor 5 assembly is connected with the solenoid valve 10 assembly, and after the inductor 5 assembly is triggered, a signal is sent to the solenoid valve 10 assembly to open the air source assembly.

In order to achieve a better effect, in the embodiment, the ion wind rod 8 is hung on the baffle plate of the printer 2 in an externally mode, so that the distance from the ion wind rod to the PCB is closer, and the air flow is stronger; the air blowing port end of the ion air bar 8 corresponds to the connection position 6 of the upper plate machine 1 and the printing machine 2, and the blown ion air is used for neutralizing the charge carried on the object.

The ion wind bar 8 is fixedly installed on the baffle plate of the printing machine 2 through a plurality of semicircular fixing pieces 7, the shape and the structure of the fixing pieces 7 are determined according to the shape of the ion wind bar 8, in this embodiment, the cross section of the ion wind bar 8 is circular, so that one surface of the fixing piece 7 contacted with the ion wind bar 8 is a semicircular arc surface, and if the shape of the ion wind bar 8 is rectangular, the fixing pieces 7 with other shapes can be adopted.

In this embodiment, as shown in fig. 4, the electromagnetic valve 10 assembly includes an electromagnetic valve 10 and a relay 11, the relay 11 is powered by the upper board 1, the positive and negative electrode wires of the relay 11 are all electrically connected with the electromagnetic valve 10, the air outlet end of the electromagnetic valve 10 is connected with the air source input end of the ion air bar 8 through the air outlet pipeline 9, the air inlet end of the electromagnetic valve 10 is connected with the air source output end of the air source assembly, the inductor 5 assembly is in signal connection with the relay 11 through a signal wire, the relay 11 is generally used as the on-off of the electromagnetic valve 10, so that the electromagnetic valve 10 is opened and closed depending on whether the relay 11 is powered or not, when the inductor 5 does not detect the PCBA board, no signal is output, the relay 11 is powered off, and the electromagnetic valve 10 is closed, otherwise, when the inductor 5 detects that the PCBA board passes, a signal is output to the relay 11, the relay 11 is powered, and the electromagnetic valve 10 is opened, which has the advantages of not reducing the static removing effect and greatly reducing the energy consumption of the equipment; here, the inductor 5 is the inductor 5 used in the upper board machine 1 itself, and the specific wiring process is described below. So the use of external fittings can be simplified, and the structural design is more reasonable

Wherein, go up trigger 1 end and have and go up trigger 1 mainboard, go up trigger 1 mainboard and pass through the relay 11 electricity hookup in power cord 4 and the solenoid valve 10 subassembly, go up trigger 1 end power and supply for solenoid valve 10 subassembly, as shown in fig. 3, the power end adopts and goes up trigger 1 end power, need not external power supply, uses more stably, simplifies the structure, the wiring is more convenient.

In order to input air source to the ion air bar 8, in this embodiment, the air source assembly comprises an output air source and a split head 12, the output air source adopts an air source at the end of the printer 2, and the output end of the split head 12 is connected with the air inlet end of the electromagnetic valve 10 through a pipeline, so the air source adopts the air source at the end of the printer 2, and no external air source is needed, thus the structure can be simplified, the use of external equipment is reduced, the cost is reduced, and the integration degree is higher.

In order to meet the requirement of the simultaneous use of the ion wind bar 8 and the printing machine 2, in this embodiment, the diverter head 12 is a three-way diverter head 12, one end of the three-way diverter head 12 is connected to the air source of the printing machine 2, and the other end of the three-way diverter head 12 is used for supplying to the printing machine 2.

Wherein, inductor 5 subassembly includes inductor 5, and inductor 5 adopts infrared inductor 5 or contact sensor, and its output position who installs trigger 1 at last, and relay 11 is connected through the signal line to inductor 5, when PCBA board upper plate printing, can trigger inductor 5, and inductor 5 sends the response signal to relay 11 end, and then comes the opening and closing of control solenoid valve 10.

The ion wind bar 8 is a special device for static electricity elimination. Belongs to a bar-type static eliminating product. Has the characteristics of simple installation, safe and stable work and high static eliminating speed. Is particularly suitable for various winding machines. The ion wind bar 8 can generate a large amount of air mass with positive and negative charges, and can neutralize charges on objects passing through the ion radiation area. When the surface of the object is charged with negative charges, the surface of the object attracts the positive charges in the radiation area, and when the surface of the object is charged with positive charges, the surface of the object attracts the negative charges in the radiation area, so that static electricity on the surface of the object is neutralized, and the aim of eliminating the static electricity is fulfilled.

The ion wind bar 8 is mainly used for eliminating static electricity, solving the damage of the static electricity to electronic products, dust collection problem caused by the static electricity, product adhesion problem caused by the static electricity, small part jump problem caused by static electricity repulsion and the like. The strong ion wind is used to remove static electricity, foreign matter and dust on the surface of the object, belongs to industry, is suitable for the primary static dust removal of planar objects, and is installed at the inlet of a clean workshop assembly line by applying the appearance designed by the curtain shading principle.

To meet the power requirement of the ion wind bar 8, in this embodiment, a power line 4 extends from a current interface of the main board 24V of the upper board machine 1 to supply power to the electronic valve and the sensor 5. In order to obtain stable air flow, in the embodiment, the air flow is split from the air gun pipeline of the printer 2, so that the external ion air bar 8 with stable efficacy and cost performance is combined conveniently.

The concrete explanation is as follows:

1. preparing a power line 4 with the length of about 0.4M (according to the specific situation), avoiding the short circuit of a machine caused by contact after welding a main board of an upper board machine 1, reserving about 0.5CM for copper wires of the power line 4, and twisting the copper wires into a bundle (a red positive electrode and a black negative electrode; the signal line and each copper wire joint of the power line 4 need to be twisted into a bundle for convenient butt joint);

2. closing a power supply of the upper plate machine 1, opening a shell, recording the plug wire position on the main board, then disassembling the main board, finding out the positive and negative poles of the 24V power supply for welding, fixing the positive and negative poles by using insulating glue after welding (two layers of adhesive tapes can be used for separate fixation to avoid short circuit), and restoring the state;

3. preparing a power line 4 by about 0.2M (according to the situation), unscrewing the electromagnetic valve 10 shell by a cross screwdriver, unscrewing screws of the internal fixed power line 4 by a small straight screwdriver, connecting the positive electrode and the negative electrode of the power line 4 correspondingly (the copper wires of the power line 4 are reserved by 1CM and are screwed into a bundle), and connecting the other end of the relay 11;

4. about 0.6M (as the case may be) of the trachea and a trachea shunt 12 are prepared;

5. the rear cover of the screen printing machine is opened by using a triangular key, and the power line 4 of the electromagnetic valve 10 is connected with the relay 11;

6. placing the relay 11; the original air pipe is cut off, the air flow is split by a splitting head 12, about 0.4M air pipe is connected IN, the other end is connected with the air inlet ('IN' end) of the electromagnetic valve 10, about 0.7M air pipe is connected with the air outlet ('OUT' end) of the electromagnetic valve 10, and the other end is connected with the ion air bar 8;

7. placing the relay 11; the original air pipe is cut off, the air flow is split by a splitting head 12, about 0.4M air pipe is connected IN, the other end is connected with the air inlet ('IN' end) of the electromagnetic valve 10, about 0.7M air pipe is connected with the air outlet ('OUT' end) of the electromagnetic valve 10, and the other end is connected with the ion air bar 8;

8. connecting a main board power line 4 of the upper plate machine 1 with a power line 4 of the relay 11 through a connector lug; cutting off the signal wire of the sensor 5 of the upper plate machine 1 from a proper position, connecting one end of the signal wire of the sensor 5 with the signal wire of the relay 11 by using a connector lug, and wrapping the other end by using insulating glue;

9. and (3) turning on a power supply of the plate feeding machine 1, triggering the inductor 5 to work by the ion wind rod 8, and finishing the internal environment of the screen printing machine.

The foregoing is merely illustrative of specific embodiments of the present utility model, and the scope of the utility model is not limited thereto, but any changes or substitutions that do not undergo the inventive effort should be construed as falling within the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.

Claims (9)

1. An ion blowing structure of a PCBA board, comprising:

the ion blowing device is used for eliminating static electricity by neutralizing charges carried on an object, and the blowing port end of the ion blowing device corresponds to a connection position (6) of the plate loading machine (1) and the printing machine (2);

the ion blowing device comprises an ion air bar (8), a solenoid valve (10) component, an inductor (5) component and an air source component, wherein the air source output end of the solenoid valve (10) component is connected with the air source input end of the ion air bar (8), the air source component is connected with the solenoid valve (10) component and is used for inputting an air source for the solenoid valve (10) component, the signal output end of the inductor (5) component is connected with the solenoid valve (10) component, and after the inductor (5) component is triggered, a signal is sent to the solenoid valve (10) component to open the air source component.

2. An ion blow structure of a PCBA board according to claim 1, wherein: the air blowing port end of the ion air bar (8) corresponds to the connection position (6) of the upper plate machine (1) and the printing machine (2), and the blown ion air is used for neutralizing charges carried on objects.

3. An ion blow structure of a PCBA board according to claim 1, wherein: the ion wind bar (8) is fixedly arranged on a baffle plate of the printing machine (2) through a plurality of semicircular fixing pieces (7).

4. An ion blow structure of a PCBA board according to claim 1, wherein: the electromagnetic valve (10) assembly comprises an electromagnetic valve (10) and a relay (11), the relay (11) is powered by the upper plate machine (1), positive and negative electrode wires of the relay (11) are all electrically connected with the electromagnetic valve (10), the air outlet end of the electromagnetic valve (10) is connected with the air source input end of the ion air bar (8) through an air outlet pipeline (9), the air inlet end of the electromagnetic valve (10) is connected with the air source output end of the air source assembly, and the inductor (5) assembly is in signal connection with the relay (11) through a signal wire.

5. An ion blow structure of a PCBA board according to claim 1, wherein: the end of the upper plate machine (1) is provided with a main board of the upper plate machine (1), the main board of the upper plate machine (1) is electrically connected with a relay (11) in the electromagnetic valve (10) assembly through a power line (4), and the power supply at the end of the upper plate machine (1) supplies power for the electromagnetic valve (10) assembly.

6. An ion blow structure of a PCBA board according to claim 1, wherein: the air source assembly comprises an output air source and a shunt head (12), wherein the output air source adopts an air source at the end of the printing machine (2), and the output end of the shunt head (12) is connected with the air inlet end of the electromagnetic valve (10) through a pipeline.

7. An ion blow structure of a PCBA board according to claim 6, wherein: the three-way diverter (12) is characterized in that the diverter (12) is a three-way diverter (12), one end of the three-way diverter (12) is connected with an air source of the printing machine (2), and the other end of the three-way diverter (12) is used for being supplied to the printing machine (2).

8. An ion blow structure of a PCBA board according to claim 1, wherein: the sensor (5) assembly comprises a sensor (5), the sensor (5) is an infrared sensor (5) or a contact sensor, the infrared sensor is arranged at the output position of the upper plate machine (1), and the sensor (5) is connected with a relay (11) through a signal line.

9. The utility model provides a trigger which characterized in that: comprising an ion blow structure according to any of claims 1 to 8.