Cleaning device of special clamp for printed circuit board and printing ink coating equipment

Abstract

A cleaning device for a clamp special for a printed circuit board is characterized in that a cleaning tank capable of soaking and cleaning the clamp is arranged at the feeding end of a continuous baking box for baking the printed circuit board, and a plurality of ultrasonic vibration heads electrically connected with an ultrasonic generator are arranged in the cleaning tank; the ultrasonic vibration head generates ultrasonic vibration through the ultrasonic generator and transmits the ultrasonic vibration to liquid in the cleaning tank to form an ultrasonic cavitation effect for cleaning the clamp, so that ink on the surface of the clamp is quickly dissolved and removed; the first power component drives the cleaning tank to move up and down in a reciprocating mode, the first power component rotates according to the set speed, direction and number of turns, the cleaning tank is driven to move up from the first height position to the second height position so that the clamp can be soaked in the cleaning tank, and the first power component rotates according to the set speed, direction and number of turns so that the clamp can be cleaned. And a channel for the printed circuit board vertically clamped on the clamp to move is formed between the cleaning tank and the clamp.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of cleaning device of special fixture of printed circuit board, more particularly to a kind of continuous baking oven for the feeding end of baking circuit board, for the device for cleaning the fixture of clamping circuit board, and it further relates to the ink coating equipment comprising the cleaning device. BACKGROUND

[0002] After coating operation, printed circuit board (PCB) needs to coat a layer of ink on the surface of printed circuit board with circuit and bake, so that the ink is dried to form an insulating layer, so that electronic components are soldered on the printed circuit board subsequently.

[0003] In the existing method of baking printed circuit board, a plurality of clamping rods are arranged on the path of conveying printed circuit board, a plurality of fixtures are arranged on each clamping rod to clamp printed circuit board, so that printed circuit board is suspended below the clamping rod, each clamping rod is driven by a chain to enter the baking oven to dry the ink on the printed circuit board.

[0004] However, when the fixture clamps the printed circuit board, the clamping opening of the fixture will stick to the ink, which will dry on the clamping opening during the ink baking process. When the clamping opening clamps another board, it will affect the ink coating quality of the printed circuit board and cannot meet the requirement of setting a cleaning device at the feeding end of the oven.

[0005] Based on the above reasons, there is an urgent need for a cleaning device for special fixture of printed circuit board to solve the above problems. UTILITY MODEL CONTENT

[0006] The utility model aims to overcome the shortcomings of the prior art, and provide a cleaning device for special fixture of printed circuit board and ink coating equipment, wherein the ultrasonic vibration head in the cleaning device generates ultrasonic vibration and propagates into the liquid through the ultrasonic generator to form ultrasonic cavitation for cleaning the fixture, so as to quickly dissolve and remove the ink on the surface of the fixture.

[0007] The utility model is realized as follows: a cleaning device for special fixture of printed circuit board, comprising:

[0008] The cleaning tank comprises a liquid medicine sub-tank containing cleaning fixtures and a clean water sub-tank containing liquid medicine on the cleaning fixture;

[0009] A plurality of ultrasonic vibration heads are arranged in the liquid medicine sub-tank and the clean water sub-tank respectively, and are configured to be electrically connected with the ultrasonic generator, the ultrasonic vibration head generates ultrasonic vibration and propagates into the liquid through the ultrasonic generator to form ultrasonic cavitation for cleaning the fixture;

[0010] The first power component rotates at a set speed, direction and number of turns to drive the cleaning tank to move from the first height position to the second height position so that the fixture is soaked in the cleaning tank;

[0011] The first power component rotates at a set speed, direction and number of turns to drive the cleaning tank to move from the second height position to the first height position so that a channel is formed between the cleaning tank and the fixture for the vertical clamping of the printed circuit board.

[0012] Further, a plurality of cleaning channels are formed in the cleaning tank for the simultaneous passing of a plurality of fixtures, and a plurality of ultrasonic transducers are arranged in each cleaning channel.

[0013] Further, a plurality of water scraping devices are arranged in each cleaning channel to raise the water level in the cleaning tank when the fixture is cleaned.

[0014] Further, the cleaning device for the fixture for the printed circuit board further comprises a guide for vertically guiding the cleaning tank, and the cleaning tank is directly or indirectly slidably arranged on the guide.

[0015] Further, the cleaning device for the fixture for the printed circuit board further comprises:

[0016] A first detector is arranged to detect the first height position of the cleaning tank and output a first height position signal.

[0017] A second detector is arranged to detect the second height position of the cleaning tank and output a second height position signal.

[0018] A drive controller is arranged to control the first power component to start or stop working according to the received first height position signal or second height position signal.

[0019] Further, the cleaning device for the fixture for the printed circuit board further comprises:

[0020] A first anti-collision device is arranged to prevent the cleaning tank from moving beyond the stroke during the upward movement.

[0021] A second anti-collision device is arranged to prevent the cleaning tank from moving beyond the stroke during the downward movement.

[0022] Further, the cleaning device for the fixture for the printed circuit board further comprises a transmission member, and the first power component drives the transmission member to rotate in a first direction or a second direction to drive the cleaning tank to move upward or downward, wherein the first direction and the second direction are opposite directions.

[0023] Further, the cleaning device of the special fixture for printed circuit board further comprises a water storage tank assembly, which comprises:

[0024] a water storage tank for storing water;

[0025] a water supply pump for injecting water in the water storage tank into the clean water distribution tank.

[0026] Further, the cleaning device of the special fixture for printed circuit board further comprises a medicine liquid storage tank assembly, which comprises:

[0027] a medicine liquid storage tank for storing medicine;

[0028] a medicine supply pump for injecting medicine in the medicine liquid storage tank into the medicine liquid distribution tank.

[0029] The cleaning device of the special fixture for printed circuit board provided by the utility model is provided with a cleaning tank capable of soaking and cleaning the fixture at the feeding end of the continuous baking oven for baking the printed circuit board, a plurality of ultrasonic vibration heads electrically connected with an ultrasonic generator are arranged in the cleaning tank, the ultrasonic vibration heads generate ultrasonic vibration through the ultrasonic generator and propagate into the liquid to form ultrasonic cavitation effect for cleaning the fixture, so that the ink on the surface of the fixture is quickly dissolved and removed; the cleaning device further comprises a first power component for driving the cleaning tank to move up and down reciprocatingly, the first power component rotates at a set speed, direction and number of turns, drives the cleaning tank to move up from the first height position to the second height position, so that the fixture is soaked in the cleaning tank, the first power component rotates at a set speed, direction and number of turns, drives the cleaning tank to move down from the second height position to the first height position, so as to form a channel between the cleaning tank and the fixture, which can be used for the movement of the printed circuit board vertically clamped on the fixture.

[0030] The utility model further provides an ink coating equipment, including the above-mentioned cleaning device of the special fixture for printed circuit board, still include sprocket drive mechanism, a plurality of interval set in sprocket drive mechanism's chain clamp subassembly and drive sprocket drive mechanism rotates second power component, wherein, chain clamp subassembly includes clamping lever and a plurality of interval install on clamping lever's fixture, second power component drives sprocket drive mechanism rotates, so that the fixture passes through medicine liquid distribution tank and clean water distribution tank in proper order, and make the fixture clamps the printed circuit board after the cleaning device washes in proper order enters the baking oven and bakes. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical scheme of the present application, the drawings used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0032] Figure 1 It is the structure diagram of the cleaning device of the special fixture for printed circuit board provided by the embodiment of the present application.

[0033] Figure 2 It is the side view of the cleaning tank in the cleaning device of the special fixture for printed circuit board provided by the embodiment of the present application.

[0034] Figure 3 It is the top view of the cleaning tank in the cleaning device of the special fixture for printed circuit board provided by the embodiment of the present application.

[0035] Figure 4 It is the partial exploded view of the cleaning device of the special fixture for printed circuit board provided by the embodiment of the present application.

[0036] Figure 5 It is the structure diagram of the chain wheel transmission mechanism, chain clamp assembly and baking oven in the ink coating equipment provided by the present application.

[0037] The realization, functional features and advantages of the present application will be further described with reference to the drawings in combination with the embodiments.

[0038] Among them, the sign explanation is as follows:

[0039] Cleaning tank 100, liquid medicine sub-tank 101, clean water sub-tank 102, cleaning channel 110, water wiper 120, water hanging piece 121, first circulating pipe 130, first inlet and outlet 131, second circulating pipe 140, second inlet and outlet 141, first filter 150, second filter 160, ultrasonic vibration head 200, first power component 300, channel 400, guide piece 500, guide rail 510, gear set 520, counterweight 530, first detector 610, second detector 620, first anti-collision piece 710, second anti-collision piece 720, water storage tank 810, water supply pump 820, medicine liquid storage tank 910, medicine supply pump 920;

[0040] Fixture 10, chain wheel transmission mechanism 20, clamping rod 30, baking oven 40. DETAILED DESCRIPTION

[0041] In the utility model, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal" and the like indicate the orientation or state relationship based on the orientation or state relationship shown in the drawings. These terms are mainly used to better describe the utility model and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0042] In addition to indicating the orientation or state relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the utility model can be understood according to the specific circumstances.

[0043] In addition, the terms "mounting", "setting", "providing", "connecting", "connecting" should be broadly understood. For example, it can be fixedly connected, detachably connected, or integrally constructed; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0044] In addition, the terms "first", "second" and the like are mainly used to distinguish different devices, elements or components, and the specific type and structure can be the same or different, and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "multiple" is two or more.

[0045] In order to clearly indicate the direction relationship in the drawing, a coordinate system with the vertical direction as the Z direction and the horizontal plane as the XY plane is appropriately marked.

[0046] The technical solutions in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model.

[0047] As shown in the utility model embodiment provides a kind of cleaning device of special fixture of printed circuit board, including: Figures 1-4

[0048] Cleaning tank 100, including containing cleaning fixture 10 and the cleaning liquid of cleaning fixture 10 of reagent tank 101 and the cleaning liquid of reagent tank 102 of cleaning fixture 10;

[0049] ​A plurality of ultrasonic vibration heads 200 are arranged in the chemical liquid tank 101 and the clean water tank 102 respectively, and are electrically connected with an ultrasonic generator (not shown). The ultrasonic vibration heads 200 generate ultrasonic vibration through the ultrasonic generator and propagate into the liquid to form ultrasonic cavitation of the cleaning fixture 10, so as to quickly dissolve and remove the ink on the surface of the fixture 10. The ultrasonic cavitation refers to the growth and collapse of the micro-nucleus cavitation bubbles in the liquid under the action of the sound wave.

[0050] The first power component 300 rotates at a set speed, direction and number of turns, drives the cleaning tank 100 to move from the first height position to the second height position, so that the fixture 10 is immersed in the cleaning tank 100.

[0051] The first power component 300 rotates at a set speed, direction and number of turns, drives the cleaning tank 100 to move from the second height position to the first height position, so as to form a channel 400 between the cleaning tank 100 and the fixture 10, which allows the printed circuit board held vertically on the fixture 10 to move.

[0052] Further, a plurality of rows of cleaning channels 110 are formed on the cleaning tank 100, through which a plurality of fixtures 10 can move simultaneously. The plurality of rows of cleaning channels 110 are arranged in parallel and at intervals. Each row of cleaning channels 110 is provided with a plurality of ultrasonic vibration heads 200 arranged at intervals along the length direction of the cleaning channel 110. When the ultrasonic vibration heads 200 act on the liquid, the fixtures 10 in the liquid can be quickly cleaned.

[0053] Further, a plurality of water scraping devices 120 are arranged in each row of cleaning channels 110. When a plurality of fixtures 10 move through the corresponding water scraping devices 120 simultaneously, the water scraping devices 120 are used to raise the water level in the cleaning tank 100, so as to increase the cleaning area of the fixture 10. The water scraping device 120 includes two water hanging pieces 121 arranged at intervals and symmetrically for the fixture 10 to move through. The material of the water hanging piece 121 is preferably silicon rubber with good stability. In this embodiment, the distance between the last fixture 10 and the next fixture 10 is equal to the distance between the last water scraping device 120 and the next water scraping device 120.

[0054] Further, the cleaning device for the fixture for the printed circuit board further comprises a guide 500 for vertically guiding the cleaning tank 100. The cleaning tank 100 is directly or indirectly slidably arranged on the guide 500. In this embodiment, the guide 500 includes two guide rails 510 arranged at intervals and correspondingly. Each guide rail 510 is coated with a chromium layer, which not only enhances the hardness and wear resistance of the guide rail 510, but also improves the appearance and decoration of the guide rail 510.

[0055] Further, the cleaning device of the printed circuit board special fixture further comprises a height control assembly, the height control assembly comprises:

[0056] The first detector 610 is used for detecting the first height position of the cleaning tank 100 and outputting a first height position signal to the outside;

[0057] The second detector 620 is used for detecting the second height position of the cleaning tank 100 and outputting a second height position signal to the outside;

[0058] The driving controller (not shown) controls the first power component 300 to start or stop working according to the received first height position signal or second height position signal.

[0059] Further, the cleaning device of the printed circuit board special fixture further comprises an anti-collision assembly, the anti-collision assembly comprises:

[0060] The first anti-collision piece 710 is used for preventing the cleaning tank 100 from moving beyond the stroke during the rising process;

[0061] The second anti-collision piece 720 is used for preventing the cleaning tank 100 from moving beyond the stroke during the falling process, and in the embodiment, the first anti-collision piece 710 and the second anti-collision piece 720 are preferably four, which are respectively arranged at the corresponding positions of the upper ends and the lower ends of the four guide rails 510. The four first anti-collision pieces 710 and the four second anti-collision pieces 720 can effectively protect the cleaning tank 100, and avoid the phenomenon of collision and damage caused by the cleaning tank 100 moving beyond the stroke during the rising or falling process.

[0062] Further, the cleaning device of the printed circuit board special fixture further comprises a transmission member 310, the first power component 300 drives the transmission member 310 to rotate in a first direction or a second direction, which is used for driving the cleaning tank 100 to move up or down, and the first direction and the second direction are opposite directions.

[0063] In the embodiment, the transmission member 310 is preferably four chains, one end of the four chains is directly or indirectly connected with the position adjusting piece 320 for adjusting the parallelism of the cleaning tank 100, the position adjusting piece 320 is preferably a screw rod, one end of the four position adjusting pieces 320 is respectively hinged with the four transmission members 310, and the other end of the four position adjusting pieces 320 is respectively screwed with the four corners of the cleaning tank 100. During the clockwise or counterclockwise rotation of the four screw rods relative to the cleaning tank 100, the four screw rods are used for respectively driving the four corners of the cleaning tank 100 to move up or down, so as to accurately adjust the levelness of the cleaning tank 100, and avoid the phenomenon of liquid overflow in the cleaning tank 100 due to the inclination.

[0064] Specifically, the upper part of each of the two rails 510 is provided with a gear set 520 engaged with the transmission member 310, and the other end of the four transmission members 310 is fixedly connected with a counterweight 530 vertically moving, the first power component 300 drives the gear set 520 to rotate in the first direction or the second direction, and the linkage transmission member rotates towards the first direction or the second direction, so that the counterweight 530 rises and the linkage cleaning tank 100 descends or the counterweight 530 descends and the linkage cleaning tank 100 rises, thereby saving the number of the first power component 300, and in the embodiment, the first power component 300 is preferably a motor.

[0065] Further, the cleaning device for the special fixture of the printed circuit board further comprises a water storage tank assembly, which comprises:

[0066] a water storage tank 810 for storing water;

[0067] a water supply pump 820 for injecting the water in the water storage tank 810 into the clean water distribution tank 102.

[0068] Further, the cleaning device for the special fixture of the printed circuit board further comprises a medicine storage tank assembly, which comprises:

[0069] a medicine storage tank 910 for storing medicine;

[0070] a medicine supply pump 920 for injecting the medicine in the medicine storage tank 910 into the medicine distribution tank 101, and in the embodiment, the water supply pump 820 and the medicine supply pump 920 are respectively connected with the medicine distribution tank 101 and the clean water distribution tank 102 through water supply pipelines and medicine supply pipelines (not shown); wherein, the medicine distribution tank 101 and the clean water distribution tank 102 are respectively provided with sensors for detecting the liquid level height in the cleaning tank 100, the sensors output liquid level height position signals, the water supply pump 820 and the medicine supply pump 920 are respectively connected with a driving controller, the driving controller controls the water supply pump 820 and the medicine supply pump 920 to rotate according to the received liquid level height position signals, so as to supply the required amount of liquid into the cleaning tank 100, and when the driving controller detects that the liquid level in the cleaning tank 100 reaches the set position through the sensors, the water supply pump 820 and the medicine supply pump 920 stop working.

[0071] As Figure 3 and Figure 4As shown, further, the medicine liquid distribution tank 101 is arranged with a first circulating pipe 130, the first circulating pipe 130 is provided with a first inlet and outlet 131 for the medicine liquid flow, the first circulating pipe 130 is communicated with one end of a first filter 150 through a first circulating pipe line (not shown), the other end of the first filter 150 is communicated with the medicine agent pump 920, and the first filter 150 is used for filtering the medicine liquid flowing into the medicine liquid distribution tank 101, thereby avoiding the phenomenon that the medicine liquid distribution tank 101 has impurities.

[0072] Further, the clean water distribution tank 102 is arranged with a second circulating pipe 140, the second circulating pipe 140 is provided with a second inlet and outlet 141 for the water flow, the second circulating pipe 140 is communicated with one end of a second filter 160 through a second circulating pipe line (not shown), the other end of the second filter 160 is communicated with the water pump 820, and the second filter 160 is used for circulating the water flow, thereby filtering the water flowing into the clean water distribution tank 102, and avoiding the phenomenon that the clean water distribution tank 102 has impurities.

[0073] As shown, Figure 5 The utility model also provides a kind of coating equipment, including the cleaning device of the above-mentioned special fixture for printed circuit board, further include sprocket drive mechanism 20, a plurality of chain clamp assemblies are sequentially arranged in sprocket drive mechanism 20 and the second power component (not shown) of driving sprocket drive mechanism rotation movement, wherein, chain clamp assembly includes clamping rod 30 and a plurality of fixtures 10 are spaced apart on clamping rod, the second power component drives sprocket drive mechanism 20 rotation movement, so that fixture 10 sequentially passes through medicine liquid distribution tank 101 and clean water distribution tank 102, and make fixture 10 clamped printed circuit board after cleaning device cleaning sequentially enter into oven 40 and bake.

[0074] The above-mentioned is the preferred embodiment of the utility model, it should be pointed out, for ordinary skilled person in the art, without departing from the principle of the utility model, can make a number of improvements and refinements on the premise, these improvements and refinements also be regarded as the protection scope of the utility model.

Claims

1. A cleaning device for a special fixture for printed circuit boards, characterized in that, include: The cleaning tank includes a liquid distribution tank containing a cleaning fixture and a clean water tank for the liquid on the cleaning fixture. Multiple ultrasonic transducers are respectively installed in the liquid dispensing tank and the clear water dispensing tank, and are configured to be electrically connected to the ultrasonic generator. The ultrasonic transducers generate ultrasonic vibrations through the ultrasonic generator and propagate them into the liquid to form an ultrasonic cavitation effect of the cleaning fixture. The first power unit rotates at a set speed, direction and number of revolutions, driving the cleaning tank to rise from a first height position to a second height position, so that the clamp is immersed in the cleaning tank; The first power unit rotates at a set speed, direction and number of revolutions, driving the cleaning tank to descend from the second height position to the first height position, thereby forming a channel between the cleaning tank and the fixture for the vertically clamped printed circuit board on the fixture to move.

2. The cleaning device for the special fixture for printed circuit boards according to claim 1, characterized in that, The cleaning tank has multiple rows of cleaning channels that allow multiple clamps to pass through simultaneously. The multiple rows of cleaning channels are arranged in parallel and spaced apart. Below each row of cleaning channels are multiple ultrasonic transducers arranged at intervals along the length of the cleaning channel.

3. The cleaning device for the special fixture for printed circuit boards according to claim 2, characterized in that, Each row of the cleaning channels is equipped with multiple water-blocking wipers, which are used to raise the water level in the cleaning tank when cleaning the fixtures.

4. The cleaning device for the special fixture for printed circuit boards according to claim 1, characterized in that, It includes a guide member for vertically guiding the cleaning tank, the cleaning tank being slidably mounted directly or indirectly on the guide member.

5. The cleaning device for the special fixture for printed circuit boards according to claim 1, characterized in that, include: The first detector is used to detect the first height position of the cleaning tank and output the first height position signal to the outside. The second detector is used to detect the second height position of the cleaning tank and output the second height position signal to the outside. The drive controller controls the first power component to start or stop working based on the received first height position signal or second height position signal.

6. The cleaning device for the special fixture for printed circuit boards according to claim 4, characterized in that, include: At least one first anti-collision component is installed at the upper end of the guide component to prevent the cleaning tank from moving beyond its travel range during the upward process; At least one second anti-collision member is installed at the lower end of the guide member to prevent the cleaning tank from moving beyond its travel range during descent.

7. The cleaning device for a special fixture for printed circuit boards according to claim 1, characterized in that, include: The transmission component is driven by the first power component to rotate in a first direction or a second direction, which is used to move the cleaning tank up or down in conjunction with the first direction and the second direction being opposite directions.

8. The cleaning device for the special fixture for printed circuit boards according to claim 1, characterized in that, Includes a water storage tank assembly, the water storage tank assembly comprising: A water storage tank, used to store water; A water supply pump is used to inject water from the water storage tank into the clean water tank.

9. The cleaning device for the special fixture for printed circuit boards according to claim 1, characterized in that, Includes a drug storage tank assembly, the drug storage tank assembly comprising: A medicine storage tank is used to store medicines. A drug supply pump is used to inject the drug from the drug storage tank into the drug distribution tank.

10. An ink coating device, characterized in that, The cleaning device including the special clamps for printed circuit boards according to any one of claims 1 to 9 further includes a sprocket drive mechanism, a plurality of chain clamp assemblies arranged sequentially at intervals on the sprocket drive mechanism, and a second power component for driving the sprocket drive mechanism to rotate. The chain clamp assembly includes a clamping rod and a plurality of clamps arranged sequentially at intervals on the clamping rod. The second power component drives the sprocket drive mechanism to rotate, so that the clamps pass sequentially through the liquid dispensing tank and the clean water tank, and the clamps cleaned by the cleaning device hold the printed circuit boards and sequentially enter the baking oven for baking.

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