PCB chip mounter suction nozzle obstruction cleaning device

Abstract

The invention discloses a PCB chip mounter suction nozzle obstruction cleaning device, and relates to the technical field of chip mounters, the PCB chip mounter suction nozzle obstruction cleaning device comprises a box body, a suction nozzle body, a detection mechanism and a water supply device, the box body comprises a side plate and baffle plates, one side of the side plate is provided with a deflection mechanism, the baffle plates are symmetrically arranged relative to the two sides of the side plate, and the deflection mechanism is arranged on the side plate. A suction nozzle body is clamped and connected to the deflection mechanism, the suction nozzle body is connected with a water supply device through the deflection mechanism, a water collecting device is arranged at the bottom of the deflection mechanism, and the detection mechanism is connected with the side plate. Through the arrangement of the water supply device, the positioning transverse plate, the clamping cutting sleeve and the water inlet guide pipe, water is injected into the suction nozzle body, the interior of the suction nozzle body is cleaned through the water, collision abrasion caused by dredging the suction nozzle through a fine needle is avoided, the service life of the suction nozzle is prolonged, and the water quality is improved through the height change of a water column after the suction nozzle is injected into the water. And the blocking condition in the suction nozzle body can be quickly judged.

Description

Technical Field

[0001] The present invention relates to the technical field of chip mounters, and particularly to a cleaning device for blockages in the nozzles of a PCB chip mounter. Background Art

[0002] A PCB chip mounter is an important device used in the electronics manufacturing industry, mainly for precisely placing surface mount components (SMDs) at specific positions on a printed circuit board. The nozzle (also known as the suction head, nozzle head) in a PCB chip mounter is part of the device and is mainly used for picking up and placing surface mount components. The nozzle has an important impact on the performance and mounting quality of the chip mounter.

[0003] During the operation of a PCB chip mounter, the inside of the nozzle is prone to ingress of patch glue or solder paste, dust impurities, or debris of electronic components, causing blockage of the nozzle, reducing the working efficiency and accuracy of the nozzle, and thus the blockage inside the nozzle needs to be cleaned.

[0004] Most of the existing nozzle cleaning methods involve inserting a thin needle into the inner wall of the nozzle to push out the blockage inside the nozzle. This is likely to cause wear to the inner wall of the nozzle and damage to the nozzle. When the thin needle is inserted, it also scratches to form pits, and it is easier for blockages to accumulate in these pits, increasing the difficulty of secondary cleaning of the nozzle. Therefore, a cleaning device for blockages in the nozzles of a PCB chip mounter is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a cleaning device for blockages in the nozzles of a PCB chip mounter to solve the problems raised in the above background art.

[0006] To solve the above technical problems, the present invention provides the following technical solutions:

[0007] A cleaning device for blockages in the nozzles of a PCB chip mounter includes a box body, a nozzle body, a detection mechanism, and a water supply device. The box body includes side plates and a baffle. A deflection mechanism is provided on one side of the side plates. The baffle is symmetrically arranged on both sides of the side plates. The deflection mechanism is clamped and connected with the nozzle body. The nozzle body is connected to the water supply device through the deflection mechanism. A water collection device is arranged at the bottom of the deflection mechanism. The detection mechanism is connected to the side plates;

[0008] The deflection mechanism includes a rotating rod. One end of the rotating rod is connected to a positioning cross plate. A clamping sleeve is arranged at the bottom of the positioning cross plate. The inner wall of the clamping sleeve is clamped with the nozzle body. An inlet water conduit is arranged at the top of the positioning cross plate. The positioning cross plate communicates the inlet water conduit with the nozzle body through the clamping sleeve. A slag discharge conduit is arranged on one side of the positioning cross plate.

[0009] One end of the rotating rod close to the side plate is provided with a driving motor, the output shaft of the driving motor is fixedly connected to one end of the rotating rod, a telescopic cylinder is arranged at the bottom of the driving motor, a strip-shaped sliding groove is arranged between the side plate and the rotating rod, the rotating rod and the side plate form a lifting structure through the telescopic cylinder, the positioning cross plate and the rotating rod and the driving motor form a deflection structure, and an infrared detector is arranged in the detection mechanism, and the imaging direction of the infrared detector is parallel to the rotating rod. By controlling the driving motor to rotate the rotating rod, the angle of the clamping sleeve on the deflection positioning cross plate is adjusted, which is convenient for the user to clamp the suction nozzle body and the clamping sleeve. At the same time, according to the sizes of different suction nozzle bodies, the telescopic cylinder is adjusted to adjust the height of the rotating rod on the telescopic cylinder, improving the applicability of the device. At the same time, it cooperates with the detection mechanism to quickly scan and detect the suction nozzle body, scan and check the foreign matters adhered to the outer wall of the suction nozzle body, and monitor the fixing state of the suction nozzle body and the clamping sleeve to ensure the unified fixing of the suction nozzle body.

[0010] There are two rotating rods, and the two rotating rods are symmetrically arranged on both sides of the side plate. The inside of the positioning cross plate is a hollow structure. The inner wall of the clamping sleeve is clamped with the top of the suction nozzle body. The water inlet conduit is connected to the water supply device, and the water supply device injects water into the water inlet conduit, the positioning cross plate, the clamping sleeve and the suction nozzle body in sequence through a water pump. The water supply device injects water into the suction nozzle body to clean the inside of the suction nozzle body by water flushing, wash away the blockage adhered to the inner wall of the suction nozzle body, reduce the friction and collision with the inner wall of the suction nozzle body, cooperate with the deflection mechanism to adjust the suction nozzle body to the same angle, so that the suction nozzle body inclines to the observation range of the detection mechanism, and observe and detect the water column ejected from the suction nozzle body through the detection mechanism. Under the same water pressure, the water column ejected from the suction nozzle body containing blockage is lower. According to the water column height of the suction nozzle body under different water pressures under normal conditions, judge the situation inside the suction nozzle body. There are several suction nozzle bodies linearly and equidistantly distributed on one side of the positioning cross plate. Through the two groups of symmetrically arranged suction nozzle bodies, the angle of the suction nozzle body is adjusted, and the outer wall of the symmetrically arranged suction nozzle bodies is washed and cleaned by the water column ejected from the suction nozzle body.

[0011] An electric control valve is arranged in the slag discharge conduit, and the slag discharge conduit is communicated with the hollow structure in the positioning cross plate. The water supply device injects water into the suction nozzle body for cleaning. After the detection mechanism detects that the water column of the suction nozzle body remains at the same height for a long time, but the water column height is lower than the first normal value, deflect the suction nozzle body so that the bottom end of the suction nozzle body is vertically upward, and at the same time open the slag discharge conduit to clean the particles containing impurities in the suction nozzle body by using the pressure change generated by the water flow, and suck out foreign matters through negative pressure.

[0012] The water collection device includes a water collection pool and a filter plate. The water collection pool is fixedly connected to the bottom of the side plate, the filter plate is movably clamped with the inner wall of the water collection pool, and a drain port is arranged at the bottom of the water collection pool.

[0013] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0014] Through the settings of the water supply device, positioning cross plate, clamping sleeve and water inlet conduit, the present invention injects water into the nozzle body, and cleans the inside of the nozzle body through the water, avoiding the collision wear caused by the thin needle dredging the nozzle, prolonging the service life of the nozzle. Through the setting of the deflection mechanism, the angle of the clamping sleeve on the positioning cross plate can be quickly deflected, facilitating the user to install and fix the nozzle body, improving the working efficiency of the device. By utilizing the change in the height of the water column after injecting water through the nozzle, the blockage condition inside the nozzle body can be quickly judged, further saving the time for observing and detecting inside the nozzle. At the same time, the water column ejected from the nozzle is used to wash and clean the outer wall of the nozzle body symmetrically arranged on the other side, improving the cleaning efficiency of the device for the nozzle body. Cooperating with the slag discharge conduit to change the flow direction of the water in the nozzle body, avoiding the problem of particulate matter blocking the inner wall of the nozzle, and facilitating the quick discharge of the blocked matter after it falls off. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the invention, they are used to explain the present invention, and do not constitute a limitation to the present invention. In the drawings:

[0016] Figure 1 is a schematic structural diagram of the present invention;

[0017] Figure 2 is a schematic connection structure diagram of the side plate and the deflection mechanism of the present invention;

[0018] Figure 3 is a schematic side sectional structure diagram of the present invention;

[0019] Figure 4 is a schematic structure diagram of the deflection mechanism of the present invention;

[0020] Figure 5 is a schematic connection structure diagram of the nozzle body and the clamping sleeve of the present invention.

[0021] In the figures:

[0022] 1. Box body; 101. Side plate; 102. Baffle;

[0023] 2. Deflection mechanism; 201. Rotating rod; 202. Positioning cross plate; 203. Clamping sleeve; 204. Water inlet conduit; 205. Slag discharge conduit;

[0024] 3. Nozzle body;

[0025] 4. Water collection device;

[0026] 5. Detection mechanism. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figures 1 - 5 , the present invention provides a technical solution: a cleaning device for the blockage of a PCB mounter nozzle, including a box body 1, a nozzle body 3, a detection mechanism 5 and a water supply device. The box body 1 includes a side plate 101 and a baffle 102. A deflection mechanism 2 is provided on one side of the side plate 101. The baffle 102 is symmetrically arranged on both sides of the side plate 101. The deflection mechanism 2 is clamped and connected with the nozzle body 3. The nozzle body 3 is connected to the water supply device through the deflection mechanism 2. A water collection device 4 is provided at the bottom of the deflection mechanism 2. The detection mechanism 5 is connected to the side plate 101;

[0029] The deflection mechanism 2 includes a rotating rod 201. One end of the rotating rod 201 is connected with a positioning cross plate 202. A clamping sleeve 203 is provided at the bottom of the positioning cross plate 202. The inner wall of the clamping sleeve 203 is clamped with the nozzle body 3. An inlet water conduit 204 is provided at the top of the positioning cross plate 202. The positioning cross plate 202 communicates the inlet water conduit 204 with the nozzle body 3 through the clamping sleeve 203. A slag discharge conduit 205 is provided on one side of the positioning cross plate 202.

[0030] A driving motor is provided at one end of the rotating rod 201 close to the side plate 101. The output shaft of the driving motor is fixedly connected with one end of the rotating rod 201. A telescopic cylinder is provided at the bottom of the driving motor. A strip-shaped chute is provided between the side plate 101 and the rotating rod 201. The rotating rod 201 forms a lifting structure through the telescopic cylinder and the side plate 101. The positioning cross plate 202 forms a deflection structure through the rotating rod 201 and the driving motor. An infrared detector is provided in the detection mechanism 5. The imaging direction of the infrared detector is parallel to the rotating rod 201. By controlling the driving motor to rotate the rotating rod 201, the angle of the clamping sleeve 203 on the deflection positioning cross plate 202 is deflected, which is convenient for the user to clamp the nozzle body 3 and the clamping sleeve 203. At the same time, according to the size of different nozzle bodies 3, the telescopic cylinder is adjusted to adjust the height of the rotating rod 201 on the telescopic cylinder, improving the applicability of the device. At the same time, it cooperates with the detection mechanism 5 to quickly scan and detect the nozzle body 3, scan and check the foreign matters adhered to the outer wall of the nozzle body 3, and monitor the fixing state of the nozzle body 3 and the clamping sleeve 203 to ensure the unified fixing of the nozzle body 3.

[0031] There are two rotating rods 201, which are symmetrically arranged on both sides of the side plate 101. The inside of the positioning cross plate 202 is of a hollow structure. The inner wall of the clamping sleeve 203 is clamped with the top of the nozzle body 3. The water inlet conduit 204 is connected to a water supply device, and the water supply device injects water into the water inlet conduit 204, the positioning cross plate 202, the clamping sleeve 203 and the nozzle body 3 in sequence through a water pump. The water supply device injects water into the nozzle body 3 to clean the inside of the nozzle body 3 by flushing with water, flushing the blocking substances adhered to the inner wall of the nozzle body 3, reducing the frictional collision against the inner wall of the nozzle body 3, and cooperating with the deflection mechanism 2 to adjust the nozzle body 3 to the same angle, so that the nozzle body 3 is inclined to the observation range of the detection mechanism 5. The detection mechanism 5 observes and detects the water column ejected from the nozzle body 3. Under the same water pressure, the water column ejected from the nozzle body 3 containing blocking substances is lower. According to the water column height of the nozzle body 3 under different water pressures under normal conditions, the situation inside the nozzle body 3 is judged. A number of nozzle bodies 3 are linearly and equidistantly distributed on one side of the positioning cross plate 202. Through two groups of symmetrically arranged nozzle bodies 3, the angle of the nozzle body 3 is adjusted, and the outer wall of the symmetrically arranged nozzle bodies 3 is flushed and cleaned by the water column ejected from the nozzle body 3.

[0032] An electric control valve is arranged in the slag discharge conduit 205, and the slag discharge conduit 205 is communicated with the hollow structure inside the positioning cross plate 202. The water supply device injects water into the nozzle body 3 for cleaning. After the detection mechanism 5 detects that the water column of the nozzle body 3 maintains the same height for a long time but is lower than the first normal value, the nozzle body 3 is deflected so that the bottom end of the nozzle body 3 is vertically upward, and at the same time, the slag discharge conduit 205 is opened, and the pressure change generated by the water flow is used to clean the particles containing impurities in the nozzle body 3, and foreign matters are sucked out through negative pressure.

[0033] The water collecting device 4 includes a water collecting pool and a filter plate. The water collecting pool is fixedly connected to the bottom of the side plate 101, and the filter plate is movably clamped with the inner wall of the water collecting pool. A drain port is arranged at the bottom of the water collecting pool.

[0034] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprises", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0035] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A cleaning device for the blockage in the nozzle of a PCB mounter, comprising a box body (1), a nozzle body (3), a detection mechanism (5) and a water supply device, characterized in that: The box body (1) includes side plates (101) and a baffle (102). One side of the side plate (101) is provided with a deflection mechanism (2). The baffle (102) is symmetrically arranged on both sides of the side plate (101). A nozzle body (3) is clamped and connected to the deflection mechanism (2). The nozzle body (3) is connected to a water supply device through the deflection mechanism (2). A water collection device (4) is arranged at the bottom of the deflection mechanism (2). The detection mechanism (5) is connected to the side plate (101). The deflection mechanism (2) includes a rotating rod (201). One end of the rotating rod (201) is connected with a positioning horizontal plate (202). A clamping sleeve (203) is arranged at the bottom of the positioning horizontal plate (202). The inner wall of the clamping sleeve (203) is clamped with the nozzle body (3). A water inlet conduit (204) is arranged at the top of the positioning horizontal plate (202). The positioning horizontal plate (202) communicates the water inlet conduit (204) with the nozzle body (3) through the clamping sleeve (203). A slag discharge conduit (205) is arranged on one side of the positioning horizontal plate (202).

2. The cleaning device for the clogging of the nozzle of a PCB mounter according to claim 1, characterized in that: One end of the rotating rod (201) close to the side plate (101) is provided with a driving motor. The output shaft of the driving motor is fixedly connected to one end of the rotating rod (201). A telescopic cylinder is arranged at the bottom of the driving motor. A strip-shaped sliding groove is arranged between the side plate (101) and the rotating rod (201). The rotating rod (201) and the side plate (101) form a lifting structure through the telescopic cylinder. The positioning horizontal plate (202) and the rotating rod (201) and the driving motor form a deflection structure. An infrared detector is arranged in the detection mechanism (5). The imaging direction of the infrared detector is parallel to the rotating rod (201).

3. The cleaning device for the blockage of the nozzle of a PCB mounter according to claim 2, characterized in that: There are two rotating rods (201). The two rotating rods (201) are symmetrically arranged on both sides of the side plate (101). The inside of the positioning horizontal plate (202) is a hollow structure. The inner wall of the clamping sleeve (203) is clamped with the top of the nozzle body (3). The water inlet conduit (204) is connected to the water supply device. The water supply device injects water into the water inlet conduit (204), the positioning horizontal plate (202), the clamping sleeve (203) and the nozzle body (3) in sequence through a water pump.

4. A cleaning device for the blockage of the nozzle of a PCB mounter according to claim 1, characterized in that: An electric control valve is arranged in the slag discharge conduit (205). The slag discharge conduit (205) communicates with the hollow structure inside the positioning horizontal plate (202).

5. The cleaning device for the blockage of the nozzle of a PCB mounter according to claim 1, characterized in that: The water collection device (4) includes a water collection pool and a filter plate. The water collection pool is fixedly connected to the bottom of the side plate (101). The filter plate is movably clamped with the inner wall of the water collection pool. A drain port is arranged at the bottom of the water collection pool.

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