CN114798522B - Dispensing needle cleaning device - Google Patents

Abstract

The invention discloses a cleaning device for a dispensing needle head, which comprises the following components: the cleaning liquid supply mechanism is provided with a liquid outlet; the cleaning mechanism is provided with a cleaning cavity, a cleaning port and a liquid inlet which are communicated; the two ends of the first infusion tube are respectively connected with the liquid outlet and the liquid inlet; the first liquid level detector is arranged on the cleaning mechanism and is used for detecting the liquid level of the cleaning liquid in the cleaning cavity; the flow control valve is arranged on the first infusion tube and connected with the first liquid level detector, and controls the flow of cleaning liquid in the first infusion tube according to the signal of the first liquid level detector. According to the dispensing needle head cleaning device provided by the embodiment of the invention, the cleaning liquid can be prevented from overflowing, and the dispensing needle head cleaning device has the advantages of stable liquid level of a cleaning port, good cleaning effect and the like.

Description

Dispensing needle cleaning device

technical field

The invention relates to the technical field of glue dispensing equipment, in particular to a glue dispensing needle cleaning device.

Background technique

There will be glue residue in the dispensing needle after dispensing. There are generally two ways to clean the dispensing needle in the related technology. The first cleaning method is to use manual cleaning of the needle, but manual cleaning will have unstable wiping force and force. Larger ones will cause scratches to the needle, and consume a lot of human resources, and the cleaning efficiency is slow; the second cleaning method is to clean the dispensing needle with the dispensing needle cleaning device, but the pressure of the cleaning liquid outlet is unstable. When the level is low, the needle cannot be touched with the cleaning solution, and the cleaning effect is poor. When the level is too high, the cleaning solution will touch the tail of the needle, causing pollution.

Contents of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a cleaning device for dispensing needles, which can not only avoid overflow of cleaning liquid, but also have the advantages of stable liquid level at the cleaning port and good cleaning effect.

In order to achieve the above object, a dispensing needle cleaning device is proposed according to an embodiment of the present invention, comprising: a cleaning liquid supply mechanism, the cleaning liquid supply mechanism is provided with a liquid outlet; a cleaning mechanism, the cleaning mechanism includes a main body, a storage A liquid tank and a cleaning pipe, the liquid storage tank is installed on the main body and is configured with a liquid storage cavity and an opening communicating with the liquid storage cavity, the cleaning tube is located in the liquid storage cavity and is configured with a cleaning cavity, a cleaning port and a liquid inlet, the cleaning pipe includes a main body section and a diversion section, the main body section extends vertically and defines the liquid inlet, and the liquid inlet runs through the liquid storage chamber The bottom wall of the guide section is connected to the upper end of the main body section and defines the cleaning port, the cleaning port is exposed from the opening, and the outer contour of the cross section of the guide section is away from the The direction of the main body section gradually decreases, the cleaning cavity runs through the main body section and the diversion section, the peripheral wall of the cleaning pipe is provided with a gap, and the gap passes through the upper end surface of the cleaning pipe; the first infusion tube , both ends of the first infusion tube are respectively connected to the liquid outlet and the liquid inlet; a first liquid level detector, the first liquid level detector is installed on the cleaning mechanism for detecting The liquid level of the cleaning liquid in the cleaning chamber; a flow control valve, the flow control valve is arranged on the first infusion pipe and connected to the first liquid level detector, and the flow control valve is set according to the first The signal of the liquid level detector controls the flow rate of the cleaning liquid in the first infusion tube; the wiper assembly is switchably installed on the cleaning mechanism between the clamped state and the loosened state, and the wiper assembly has The wiping gap is spaced apart from the liquid storage tank, the wiping gap is closed when the wiping assembly is in the clamped state, and the wiping gap is opened when the wiping assembly is in the loosened state.

The glue dispensing cleaning device according to the embodiment of the present invention can not only avoid overflow of the cleaning liquid, but also have the advantages of stable liquid level at the cleaning port and good cleaning effect.

According to some embodiments of the present invention, the dispensing needle cleaning device further includes: a one-way valve connected to the first infusion tube.

According to some embodiments of the present invention, the inner diameter of the opening is larger than the outer diameter of the cleaning pipe, and the upper surface of the liquid storage tank is not lower than the upper end surface of the cleaning pipe.

According to some embodiments of the present invention, the liquid storage tank further includes: a liquid discharge port, the liquid discharge port is arranged on the bottom wall of the liquid storage tank and communicates with the liquid storage cavity, and the liquid discharge port passes through The second infusion tube communicates with the return port of the cleaning liquid supply mechanism.

According to some embodiments of the present invention, the cross-sectional area of the liquid discharge port gradually decreases in a direction away from the liquid storage tank.

According to some embodiments of the present invention, the cleaning mechanism further includes: a second liquid level detector, the second liquid level detector is arranged in the liquid storage tank, and is used to detect the level of the cleaning liquid in the liquid storage chamber. liquid level.

According to some embodiments of the present invention, the cleaning pipe includes: a main body section extending vertically and defining the liquid inlet; a flow guide section connected to the main body section The upper end is connected to and defines the cleaning port, and the outer contour of the cross-section of the flow guide section gradually decreases in a direction away from the main body section; wherein, the cleaning chamber passes through the main body section and the flow guide section .

According to some embodiments of the present invention, the outer peripheral surface of the flow guiding section is gradually inclined toward the central axis of the cleaning pipe from bottom to top.

According to some embodiments of the present invention, the capping device includes: a first driving member, the first driving member is connected to the main body; a lifting rod, the lower end of the lifting rod is connected to the first driving member, The first driving member drives the lifting rod to rotate and lift along the axis of the lifting rod; the first cover plate is connected to the upper end of the lifting rod, and the lifting rod is used to drive the lifting rod Describe the rotation and lifting of the first cover plate.

According to some embodiments of the present invention, the dispensing needle cleaning device further includes: a first leak-proof box, the first leak-proof box is installed on the main body and located below the liquid storage tank; a third liquid level A detector, the third liquid level detector is installed in the first leak-proof box, and is used to detect the liquid level of the cleaning solution in the first leak-proof box.

According to some embodiments of the present invention, the wiping assembly includes: a second driving member; a first cleaning block and a second cleaning block, the first cleaning block and the second cleaning block are respectively connected to the second driving member connected to and define the wiping gap, the second driving member drives at least one of the first cleaning block and the second cleaning block to move, so as to switch the wiping assembly to the clamping state or release it state.

According to some embodiments of the present invention, each of the first cleaning block and the second cleaning block includes: a vertical portion, the lower end of which is connected to the second driving member; a horizontal portion, One end of the horizontal portion is connected to the upper end of the vertical portion and extends from the vertical portion toward the cleaning chamber.

According to some embodiments of the present invention, the upper surface of the horizontal portion is flush with the upper end of the cleaning chamber.

According to some embodiments of the present invention, the cleaning liquid supply mechanism includes: a liquid storage tank, the liquid storage tank is provided with the liquid outlet; a pump body, the pump body is connected to the liquid outlet and the second An infusion tube, used to pump the cleaning solution of the liquid storage tank into the first infusion tube; a second leak-proof box, the second leak-proof box is arranged below the liquid storage tank; a fourth A liquid level detector, the fourth liquid level detector is installed in the second leak-proof box, and is used to detect the liquid level of the cleaning solution in the second leak-proof box.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and understandable from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a schematic structural view of a dispensing needle cleaning device according to an embodiment of the present invention.

Fig. 2 is a structural schematic diagram of a cleaning mechanism of a dispensing needle cleaning device according to an embodiment of the present invention.

Fig. 3 is a structural schematic diagram of a cleaning liquid supply mechanism of a dispensing needle cleaning device according to an embodiment of the present invention.

Fig. 4 is a structural schematic diagram of a liquid storage tank and a cleaning tube of a dispensing needle cleaning device according to an embodiment of the present invention.

Fig. 5 is a schematic structural view of a wiping assembly of a dispensing needle cleaning device according to an embodiment of the present invention.

Fig. 6 is a schematic structural view of a cleaning tube of a dispensing cleaning needle according to an embodiment of the present invention.

Reference signs:

Dispensing needle cleaning device 1,

Cleaning liquid supply mechanism 100, liquid storage tank 110, liquid outlet 111, return port 112, pump body 120, second leak-proof box 130, fourth liquid level detector 140,

Cleaning mechanism 200, main body 210, liquid storage tank 220, liquid storage chamber 221, opening 222, liquid discharge port 223, cleaning pipe 230, cleaning chamber 231, cleaning port 232, liquid inlet 233, main body section 234, diversion section 235 , gap 236, capping device 240, first driving member 241, lifting rod 242, first cover plate 243,

The first infusion tube 300, the second infusion tube 310,

The first liquid level detector 400, the second liquid level detector 410,

Flow control valve 500, one-way valve 510,

The first leak-proof box 600, the third liquid level detector 610,

The wiping assembly 700 , the second driving member 710 , the first cleaning block 720 , the vertical portion 721 , the horizontal portion 722 , the second cleaning block 730 , and the wiping gap 740 .

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Rear", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Axial", "Radial", "Circumferential" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, use a specific Azimuth configuration and operation, therefore, should not be construed as limiting the invention.

In the description of the present invention, "first feature" and "second feature" may include one or more of these features.

In the description of the present invention, "plurality" means two or more, and "several" means one or more.

The following describes the dispensing needle cleaning device 1 according to the embodiment of the present invention with reference to the accompanying drawings.

As shown in FIGS. 1-6 , the dispensing needle cleaning device 1 according to the embodiment of the present invention includes a cleaning liquid supply mechanism 100 , a cleaning mechanism 200 , a first infusion tube 300 , a first liquid level detector 400 and a flow control valve 500 . Wherein, the flow control valve 500 may be a solenoid valve.

The cleaning liquid supply mechanism 100 is provided with a liquid outlet 111, and the cleaning mechanism 200 is provided with a connected cleaning chamber 231, a cleaning port 232 and a liquid inlet 233, and the two ends of the first infusion tube 300 are connected with the liquid outlet 111 and the liquid inlet respectively. 233 connection, the first liquid level detector 400 is installed in the cleaning mechanism 200, used to detect the liquid level of the cleaning liquid in the cleaning chamber 231, the flow control valve 500 is set in the first infusion tube 300 and connected with the first liquid level detector 400 , the flow control valve 500 controls the flow of the cleaning liquid in the first infusion tube 300 according to the signal of the first liquid level detector 400 .

Wherein, the dispensing needle can be stretched into the cleaning chamber 231 from the cleaning port 232 and then pulled out from the cleaning chamber 231, so that the dispensing needle can dip the cleaning liquid in the cleaning chamber 231, so that the cleaning liquid covers the outer peripheral surface of the dispensing needle, The cleaning solution can corrode the glue on the dispensing needle, and then wipe the dispensing needle to easily remove the residual glue on the dispensing needle.

According to the cleaning liquid supply mechanism 100 of the embodiment of the present invention, by providing the liquid outlet 111 on the cleaning liquid supply mechanism 100, the cleaning mechanism 200 is provided with a connected cleaning chamber 231, a cleaning port 232 and a liquid inlet 233, and the first infusion tube The two ends of 300 are respectively connected with the liquid outlet 111 and the liquid inlet 233, so that when the dispensing needle cleaning device 1 is not working, the cleaning liquid can be stored in the cleaning liquid supply mechanism 100 to avoid leakage of the cleaning liquid and also avoid The cleaning liquid is oxidized to ensure the decontamination effect of the cleaning liquid, and when the dispensing needle cleaning device 1 works, the cleaning liquid can flow from the liquid outlet 111 to the liquid inlet 233, so that the cleaning liquid is filled with the cleaning chamber 231, so that The dispensing needle can easily get the cleaning solution, and the cleaning efficiency is high.

In addition, the first liquid level detector 400 is installed on the cleaning mechanism 200 for detecting the liquid level of the cleaning liquid in the cleaning chamber 231, the flow control valve 500 is arranged on the first infusion tube 300 and connected with the first liquid level detector 400, The flow control valve 500 controls the flow of the cleaning liquid in the first infusion tube 300 according to the signal of the first liquid level detector 400 .

Thus, the first liquid level detector 400 can feed back the liquid level height of the cleaning liquid in the cleaning chamber 231 to the flow control valve 500. When the liquid level of the cleaning liquid in the cleaning chamber 231 is lower than the cleaning port 232, the flow control valve 500 can increase the flow rate of the cleaning liquid to increase the flow pressure of the cleaning liquid, so that the liquid level of the cleaning liquid in the cleaning chamber 231 rises, so that the dispensing needle can be completely dipped into the cleaning liquid, thereby improving the pressure on the dispensing needle. cleaning effect; when the cleaning liquid in the cleaning chamber 231 overflows from the cleaning port 232, the flow control valve 500 can reduce the flow rate of the cleaning liquid to reduce the flow pressure of the cleaning liquid, so that the liquid level of the cleaning liquid in the cleaning chamber 231 The height is lowered to prevent the cleaning liquid from overflowing, thereby preventing the cleaning liquid from polluting the root of the dispensing needle, and further improving the cleaning effect on the dispensing needle.

In this way, through the cooperation of the first liquid level detector 400 and the flow control valve 500, the cleaning liquid can be supplemented when the liquid level of the cleaning liquid is low, and the liquid level of the cleaning liquid can be lowered in time when the cleaning liquid overflows, so that The liquid level of the cleaning liquid is maintained at a stable liquid level, which not only ensures the cleaning effect on the dispensing needle but also avoids the pollution caused by the cleaning liquid, and the cost is low.

In this way, the dispensing needle cleaning device 1 according to the embodiment of the present invention can not only prevent the cleaning liquid from overflowing, but also have the advantages of stable liquid level of the cleaning port 232 and good cleaning effect.

In some specific embodiments of the present invention, as shown in FIGS. 1 and 2 , the dispensing needle cleaning device 1 further includes a one-way valve 510 .

The one-way valve 510 is connected to the first infusion tube 300, the liquid inlet 233 is located below the cleaning chamber 231, the cleaning port 232 is located above the cleaning chamber 231, the one-way valve 510 allows the cleaning liquid to flow from the liquid outlet 111 to the cleaning chamber 231 and The cleaning liquid is prevented from flowing from the cleaning chamber 231 to the liquid outlet 111 .

It can be understood that after the cleaning liquid enters the cleaning chamber 231 from the liquid inlet 233, the cleaning liquid tends to flow downward due to the influence of gravity. By opening the cleaning port 232 above the cleaning chamber 231, when the liquid level of the cleaning liquid is not high The cleaning liquid will not overflow from the cleaning port 232 during cleaning, the cleaning chamber 231 can accommodate more cleaning liquid, and the dispensing needle generally dispenses glue downwards, so the lower end of the dispensing needle needs to be cleaned more, so the lower end of the dispensing needle It is easier to extend into the cleaning cavity 231 through the cleaning port 232, which is convenient for cleaning the dispensing needle.

Moreover, by setting the one-way valve 510, the cleaning liquid will not flow back to the cleaning liquid supply mechanism 100 after passing through the one-way valve 510, that is to say, the cleaning liquid in the cleaning chamber 231 will not flow back, so that the cleaning chamber 231 The liquid level of the cleaning liquid inside can be maintained near the cleaning port 232 more stably, and the liquid level of the cleaning liquid is kept stable, which is convenient for the dispensing needle to dip into the cleaning liquid.

Further, as shown in FIG. 1 and FIG. 2 , the one-way valve 510 is located between the flow control valve 500 and the cleaning chamber 231 , so that the flow control valve 500 can first control the first liquid level detector 400 according to the signal fed back According to the flow rate of the infusion tube 300, the quantitative cleaning liquid enters the cleaning chamber 231 through the one-way valve 510. When the flow rate of the cleaning liquid pumped by the liquid outlet 111 is relatively large, the flow control valve 500 can directly seal the excess cleaning liquid. so that the cleaning liquid can return to the cleaning liquid supply mechanism 100 through the liquid outlet 111, avoiding excessive cleaning liquid being blocked between the flow control valve 500 and the one-way valve 510, which is more conducive to controlling the flow in the cleaning chamber 231 liquid level.

In some specific embodiments of the present invention, as shown in FIGS. 1 and 2 , the cleaning mechanism 200 includes a main body 210 , a liquid storage tank 220 and a cleaning pipe 230 .

The liquid storage tank 220 is installed on the main body 210 and is configured with a liquid storage chamber 221 and an opening 222 communicating with the liquid storage chamber 221. The cleaning tube 230 is located in the liquid storage chamber 221 and is configured with a cleaning chamber 231, a cleaning port 232 and a liquid inlet 233. , the liquid inlet 233 runs through the bottom wall of the liquid storage chamber 221 , and the cleaning port 232 is exposed from the opening 222 .

Specifically, the cleaning liquid directly enters the cleaning chamber 231 from the first liquid infusion tube 300 and the liquid inlet 233, and the cleaning port 232 is exposed from the opening 222, and the dispensing needle can be inserted into the cleaning chamber 231 through the opening 222 and the cleaning port 232 to be stained. Take the cleaning liquid. When the cleaning liquid overflows the cleaning port 232, the cleaning liquid can flow into the liquid storage chamber 221 of the liquid storage tank 220 through the opening 222, so as to prevent the cleaning liquid from polluting the ground and other parts or points of the dispensing needle cleaning device 1. The part of the glue needle that does not need to be cleaned.

For example, the cleaning pipe 230 can be integrally formed with the bottom wall of the liquid storage chamber 221, or the cleaning pipe 230 and the liquid storage tank 220 can be separately processed and then assembled together. Keeping the seal, the liquid storage chamber 221 is used to collect the cleaning liquid overflowed from the cleaning port 232 and can prevent the cleaning liquid from leaking.

In some specific embodiments of the present invention, as shown in FIGS. 1 and 2 , the inner diameter of the opening 222 is larger than the outer diameter of the cleaning pipe 230 .

That is to say, the inner peripheral surface of the opening 222 is spaced apart from the outer peripheral surface of the cleaning pipe 230, so that there is a gap between the side wall of the opening 222 and the cleaning pipe 230, and when the cleaning liquid overflows from the cleaning port 232, the cleaning liquid can flow through the opening. The gap between the side wall of 222 and the cleaning pipe 230 flows into the liquid storage chamber 221 , preventing the cleaning liquid from flowing to the outside of the liquid storage tank 220 .

And, the upper surface of the liquid storage tank 220 is not lower than the upper end surface of the cleaning pipe 230, that is to say, the upper side of the opening 222 is not lower than the cleaning port 232, for example, the upper side of the opening 222 can be flush with the cleaning port 232, Or the upper side of opening 222 can be higher than cleaning port 232, like this, the cleaning liquid that overflows by opening 222 can be lower than opening 222, thereby makes cleaning liquid all can flow in the liquid storage chamber 221 from opening 222, has further reduced cleaning. Chances of spillage.

In some specific embodiments of the present invention, as shown in FIG. 4, the liquid storage tank 220 further includes a liquid discharge port 223. The liquid discharge port 223 is arranged on the bottom wall of the liquid storage tank 220 and communicates with the liquid storage chamber 221. The port 223 communicates with the return port 112 of the cleaning liquid supply mechanism 100 through the second infusion tube 310 .

Specifically, the liquid discharge port 223 can be arranged at the lowest point of the bottom wall of the liquid storage tank 220, and the liquid discharge port 223 and the liquid inlet port 233 are arranged at intervals to avoid positional interference between the liquid discharge port 223 and the liquid inlet port 233, so that the storage The cleaning liquid in the liquid chamber 221 can gather to the liquid discharge port 223, and flow back to the cleaning liquid supply mechanism 100 through the liquid discharge port 223 and the second infusion tube 310, so as to realize the recovery of the cleaning liquid and reduce the waste of cleaning liquid, and the cleaning liquid It will not stay in the liquid storage chamber 221 for a long time, so as to prevent the cleaning liquid in the liquid storage chamber 221 from accumulating too much and overflowing, further avoiding the pollution caused by the cleaning liquid.

Further, as shown in FIG. 4 , the cross-sectional area of the drain port 223 gradually decreases toward a direction away from the liquid storage tank 220 . That is to say, the side wall of the liquid discharge port 223 can be inclined, on the one hand, the cross-sectional area of the upper end of the liquid discharge port 223 can be increased, and the cleaning liquid can enter the liquid discharge port 223 more easily; The side wall can act as a flow guide to increase the flow rate of the cleaning liquid, thereby improving the return efficiency of the cleaning liquid in the liquid storage chamber 221 , so that the cleaning liquid can quickly flow back to the cleaning liquid supply mechanism 100 .

Furthermore, as shown in FIG. 1 , FIG. 2 and FIG. 4 , the cleaning mechanism 200 also includes a second liquid level detector 410 , and the second liquid level detector 410 is arranged in the liquid storage tank 220 for detecting the liquid storage chamber 221 The liquid level of the internal cleaning fluid.

For example, the second liquid level detector 410 can be set with a preset value, the liquid level corresponding to the preset value is higher than the liquid inlet 233 and lower than the opening 222, when the liquid of the cleaning liquid in the liquid storage chamber 221 When the position reaches the preset value, an alarm is issued, and the staff can judge that there is a cleaning liquid in the cleaning chamber 231 through the alarm, that is, the cleaning liquid in the cleaning chamber 231 is not discharged through the liquid discharge port 223 in time, and the liquid storage tank 220 and the second infusion tube 310 are checked to avoid blockage of the liquid outlet 111 or the second infusion tube 310, thereby more reliably preventing the cleaning liquid from overflowing from the liquid storage chamber 221.

In some specific embodiments of the present invention, as shown in FIG. 4 , the cleaning pipe 230 includes a main body section 234 and a flow guide section 235 .

The main body section 234 extends vertically and defines the liquid inlet 233. The flow guide section 235 is connected to the upper end of the main body section 234 and defines the cleaning port 232. The outer profile of the cross section of the flow guide section 235 is away from the main body section 234. direction gradually decreases. Wherein, the cleaning cavity 231 passes through the main body section 234 and the flow guide section 235 .

Thus, the main body section 234 can increase the length of the cleaning tube 230, so that the cleaning tube 230 can pass through the liquid storage chamber 221 and be exposed by the opening 222. When necessary, the cleaning chamber 231 can completely accommodate the part of the dispensing needle that needs to be cleaned, so that the dispensing needle can fully get the cleaning solution in the cleaning chamber 231 . Moreover, the outer peripheral surface of the diversion section 235 can guide the cleaning liquid. If the cleaning liquid overflows from the cleaning port 232, the cleaning liquid can flow to the opening 222 along the outer peripheral surface of the diversion section 235 and enter the liquid storage under the action of gravity. The cavity 221 further prevents the cleaning liquid from flowing to the outside of the liquid storage tank 220 and prevents the cleaning liquid from contaminating the dispensing needle cleaning device 1 .

In addition, the end of the flow guide section 235 facing away from the main body section 234 can be a horizontal plane, that is to say, the end of the flow guide section 235 facing away from the main section 234 can be flush with the cleaning port 232, so that when the liquid level of the cleaning liquid When flush with the cleaning port 232 , the horizontal surface structure of the end of the flow guide section 235 facing away from the main section 234 can keep the liquid level level, thereby stabilizing the liquid level of the cleaning liquid.

In some specific embodiments of the present invention, as shown in FIG. 4 and FIG. 6 , the outer peripheral surface of the guide section 235 is gradually inclined toward the central axis of the cleaning pipe 230 from bottom to top. That is to say, the outer peripheral surface of the diversion section 235 is an inclined surface, so that the outer peripheral surface of the diversion section 235 can guide the cleaning liquid. After the cleaning liquid overflows from the cleaning port 232, the cleaning liquid can flow along the The outer peripheral surface of the guide section 235 flows to the opening 222 and enters the liquid storage chamber 221 , further preventing the cleaning liquid from flowing to the outside of the liquid storage tank 220 , and at the same time preventing the cleaning liquid from splashing and contaminating the dispensing needle cleaning device 1 .

In some specific embodiments of the present invention, as shown in FIGS. 1 and 2 , the cleaning mechanism 200 further includes a capping device 240 .

The capping device 240 is switchably connected to the main body 210 between the capping state and the open state. When the capping device 240 is in the capping state, it is connected to the liquid storage tank 220 and caps the opening 222. When the capping device 240 is in the open state It is spaced apart from the liquid storage tank 220 and the opening 222 is open.

It can be understood that the cleaning liquid supply mechanism 100 communicates with the outside world through the second liquid infusion tube 310, the liquid storage chamber 221 and the opening 222, and when the cleaning mechanism 200 is deactivated, the capping device 240 can be in a capped state, so that the storage The opening 222 of the liquid chamber 221 is covered, and the cleaning liquid in the cleaning liquid supply mechanism 100 is isolated from the outside world, while the cleaning chamber 231 is also isolated from the outside world, which effectively reduces the evaporation of the cleaning liquid, reduces the cost of use, and improves the efficiency of the cleaning liquid. utilization efficiency.

Further, as shown in FIG. 1 and FIG. 2 , the capping device 240 includes a first driving member 241 , a lifting rod 242 and a first cover plate 243 . Wherein, the first driving member 241 may be a rotary cylinder or a rotary motor.

The first driving member 241 is connected with the main body 210, the lower end of the lifting rod 242 is connected with the first driving member 241, the first driving member 241 drives the lifting rod 242 to rotate and lift along the axis of the lifting rod 242, the first cover plate 243 and the lifting rod 242 is connected to the upper end, and the lifting rod 242 is used to drive the first cover plate 243 to rotate and lift.

That is to say, the first driving member 241 can drive the lifting rod 242 to lift and rotate, thereby driving the first cover plate 243 to lift and rotate, so that the opening 222 is opened or covered. Specifically, when the capping device 240 switches from the capping state to the open state, the first driving member 241 first drives the lifting rod 242 to rise upward for a certain distance, and then drives the lifting rod 242 to rotate in a direction away from the opening 222, and the first cap The plate 243 moves with the lifting rod 242; when the capping device 240 is switched from the open state to the capping state, the first driving member 241 first drives the lifting rod 242 to rotate in a direction close to the opening 222 until the first cover plate 243 is positioned on the side of the opening 222. Directly above, the lifting rod 242 is driven down until the first cover plate 243 covers the opening 222 .

Thus, when the first cover plate 243 rotates, it will be spaced apart from the liquid storage tank 220, avoiding friction between the first cover plate 243 and the liquid storage tank 220, and avoiding wear of the first cover plate 243 and the liquid storage tank 220 , and at the same time, it is more convenient to rotate the first cover plate 243 , and the first cover plate 243 can cover and open the opening 222 .

In some specific embodiments of the present invention, as shown in FIGS. 1 and 2 , the dispensing needle cleaning device 1 further includes a first leak-proof box 600 and a third liquid level detector 610 .

The first leak-proof box 600 is installed on the main body 210 and is located below the liquid storage tank 220, and the third liquid level detector 610 is installed in the first leak-proof box 600 for detecting the level of the cleaning liquid in the first leak-proof box 600. liquid level.

Wherein, the third liquid level detector 610 can be a float sensor, and the upper surface of the first leak-proof box 600 is open, so that when the cleaning liquid overflows the liquid storage tank 220, or the connection between the first infusion tube 300 and the liquid inlet 233 When the liquid leaks, the first leak-proof box 600 can hold the leaked cleaning solution, or the first leak-proof box 600 can also hold the cleaning solution dropped when the wiping assembly 700 described below wipes the needle, When the third liquid level detector 610 detects that the liquid level in the first leak-proof box 600 rises, an alarm can be sent to remind the staff to check the cleaning mechanism 200, so as to eliminate the liquid leakage fault of the cleaning mechanism 200 and prevent the cleaning liquid from overflowing the first leak-proof box 600. A leak-proof box 600 to further prevent cleaning liquid from contaminating the dispensing needle cleaning device 1 .

In some specific embodiments of the present invention, as shown in FIG. 4 and FIG. 6 , a notch 236 is formed on the peripheral wall of the cleaning pipe 230 , and the notch 236 passes through the upper surface of the cleaning pipe 230 .

For example, the notch 236 can extend radially along the cleaning pipe 230 and run through the upper end surface of the cleaning pipe 230. The axial extension length of the notch 236 along the cleaning pipe 230 can be 1 mm, and the notch 236 extends along the circumferential direction of the cleaning pipe 230. The length may be 1mm. By setting the gap 236, when the liquid level of the cleaning liquid remains stable at the opening 222, due to the tension of the liquid surface, and the size of the gap 236 is relatively small, the cleaning liquid will not flow out from the gap 236, and when the height of the cleaning liquid reaches the predetermined When the height is set, the pressure of the cleaning liquid is greater than the surface tension of the cleaning liquid at the gap 236. At this time, the cleaning liquid will flow out of the cleaning tube 230 from the gap 236 and flow down into the liquid storage chamber 221, which can prevent the cleaning liquid from splashing into the cleaning mechanism. On other parts of the 200, the cleaning liquid is further avoided from polluting the equipment.

In some specific embodiments of the present invention, as shown in FIG. 1 , FIG. 2 and FIG. 5 , the dispensing needle cleaning device 1 further includes a wiping assembly 700 .

The wiping assembly 700 is switchably installed on the cleaning mechanism 200 between the clamped state and the unclamped state. The wiping assembly 700 has a wiping gap 740 and is spaced apart from the liquid storage tank 220. When the wiping assembly 700 is in the clamped state, the wiping gap 740 is closed. , the wiping gap 740 is opened when the wiping assembly 700 is in a loose state.

By spacing the wiping assembly 700 from the liquid storage tank 220, the positional interference between the wiping assembly 700 and the liquid storage tank 220 can be avoided, and at the same time, the cleaning liquid in the liquid storage tank 220 is prevented from contaminating the wiping assembly 700. When the wiping assembly 700 is in a loose state, dispensing The needle can be easily inserted into the wiping gap 740 or can be easily pulled out after wiping, so as to prevent the wiping assembly 700 from causing damage to the dispensing needle, and when the wiping assembly 700 is in a clamped state, it can clamp the dispensing needle, and the wiping assembly 700 is able to clamp the dispensing needle The friction force is stronger, which can better clean the surface of the dispensing needle.

In some specific embodiments of the present invention, as shown in FIG. 1 , FIG. 2 and FIG. 5 , the wiping assembly 700 includes a second driving member 710 , a first cleaning block 720 and a second cleaning block 730 . Wherein, the first cleaning block 720 and the second cleaning block 730 may be flexible objects such as cleaning cotton, and the second driving member 710 may be an air cylinder or a driving motor.

The first cleaning block 720 and the second cleaning block 730 are respectively connected to the second driving member 710 and define a wiping gap 740, and the second driving member 710 drives at least one of the first cleaning block 720 and the second cleaning block 730 to move, so as to The wiping assembly 700 is switched to a clamped state or a loosened state.

Specifically, the wiping gap 740 extends in the vertical direction, and the extension dimension of the wiping gap 740 in the vertical direction is greater than the length of the dispensing needle, and the dispensing needle can be completely inserted into the wiping gap 740, and the wiping is more sufficient. At least one of the second cleaning blocks 730 can move in the horizontal direction, so that the horizontal dimension of the wiping gap 740 can be adjusted, so that the dispensing needle can be easily inserted into the wiping gap 740 .

The following example illustrates the cleaning process of the dispensing needle cleaning device 1 for dispensing needles:

First, the dispensing needle cleaning device 1 is turned on, the capping device 240 is switched to the open state, the cleaning liquid supply mechanism 100 pumps the cleaning liquid, and the cleaning liquid flows through the liquid outlet 111, the first infusion tube 300, the flow control valve 500, the single After the valve 510 and the liquid inlet 233, it enters the cleaning chamber 231 and remains stable at the cleaning port 232. The first liquid level detector 400 detects that there is cleaning liquid at the cleaning port 232;

Then, the dispensing needle is positioned directly above the cleaning cavity 231 and moved downwards to be inserted into the cleaning port 232. After dipping the cleaning solution, the dispensing needle first moves upward to directly above the cleaning port 232, and then moves horizontally to above the wiping assembly 700 , the wiping assembly 700 is in a loose state, the dispensing needle moves downwards and is inserted into the wiping gap 740, the wiping assembly 700 is switched to a clamped state, and the dispensing needle can repeatedly move up and down to rub against the wiping assembly 700;

Finally, after the dispensing needle is wiped, the wiping assembly 700 switches to the loosened state, the dispensing needle rises, and the cleaning is completed, the cleaning liquid supply mechanism 100 stops, and the first liquid level detector 400 detects that there is no cleaning liquid at the cleaning port 232, The capping device 240 switches to the capping state.

In some specific embodiments of the present invention, each of the first cleaning block 720 and the second cleaning block 730 includes a vertical portion 721 and a horizontal portion 722 .

The lower end of the vertical portion 721 is connected to the second driving member 710 , and one end of the horizontal portion 722 is connected to the upper end of the vertical portion 721 and extends from the vertical portion 721 toward the cleaning chamber 231 .

Specifically, the vertical portion 721 extends vertically, and the horizontal portion 722 extends horizontally, so that the extension length of the first cleaning block 720 along the same direction is too long, and the extension length of the second cleaning block 730 along the same direction can be avoided. If it is too long, the space occupied by the first cleaning block 720 and the second cleaning block 730 can be reduced, which facilitates the layout and installation of the wiping assembly 700 , so as to reduce the overall volume of the dispensing needle cleaning device 1 . Moreover, the horizontal part 722 can form a wiping gap 740 to hold the dispensing needle, and the dispensing needle can be inserted or pulled out of the wiping gap 740 by moving along the vertical direction, which is more convenient to operate. Moreover, the horizontal portion 722 is located between the second driving member 710 and the cleaning chamber 231, the distance for the dispensing needle to move from the cleaning chamber 231 to the horizontal portion 722 is relatively short, and interference between the second driving member 710 and the cleaning chamber 231 is unlikely to occur. , the volume of the dispensing needle cleaning device 1 can be small.

Further, as shown in FIG. 1 , FIG. 2 and FIG. 5 , the upper surface of the horizontal portion 722 is flush with the upper end of the cleaning chamber 231 . In this way, the height of the dispensing needle when it is inserted into the cleaning cavity 231 can be the same as the height when it is inserted into the wiping gap 740, that is to say, the dispensing needle can be pulled out after being inserted into the cleaning cavity 231, and can be lowered after moving to the top of the wiping assembly 700. Wipe at a higher height, which can simplify the drop distance of the dispensing needle, make the cleaning of the dispensing needle more convenient, and reduce the complexity of control.

In some specific embodiments of the present invention, as shown in FIGS. 1 and 5 , the cleaning liquid supply mechanism 100 includes a liquid storage tank 110 , a pump body 120 , a second leak-proof box 130 and a fourth liquid level detector 140 .

The liquid storage tank 110 is provided with a liquid outlet 111, and the pump body 120 is connected to the liquid outlet 111 and the first infusion tube 300 for pumping the cleaning liquid in the liquid storage tank 110 into the first infusion tube 300, and the second anti-leakage The box 130 is disposed under the liquid storage tank 110 , and the fourth liquid level detector 140 is installed in the second leak-proof box 130 for detecting the liquid level of the cleaning solution in the second leak-proof box 130 .

For example, the pump body 120 can be a diaphragm pump, the liquid storage tank 110 can store the cleaning liquid, and the pump body 120 can form a negative pressure inside the pump body 120, so that the cleaning liquid in the liquid storage tank 110 is released from the liquid outlet. 111 is pumped out to the pump body 120 , and the pump body 120 squeezes the cleaning liquid to the first infusion tube 300 .

Wherein, the fourth liquid level detector 140 can be a float sensor, and the upper surface of the second leak-proof box 130 is open, so that when the liquid outlet 111 or the return port 112 of the liquid storage tank 110 leaks, the second leak-proof The leaky box 130 can hold the dripping cleaning solution, and when the fourth liquid level detector 140 detects that the liquid level in the second leakproof box 130 rises, an alarm can be sent to remind the staff to check the cleaning solution supply mechanism 100 to eliminate The liquid leakage failure of the liquid storage tank 110 prevents the cleaning liquid from overflowing the second leak-proof box 130 at the same time, and further prevents the cleaning liquid from contaminating the dispensing needle cleaning device 1 or the ground.

In addition, the bottom of the liquid storage tank 110 is spaced apart from the bottom wall of the second leak-proof box 130. For example, the bottom wall of the second liquid storage tank 110 can be provided with a support column for supporting the liquid storage tank 110. If the tank 110 leaks, the bottom of the liquid storage tank 110 can be separated from the cleaning liquid in the second leak-proof box 130 to prevent the cleaning liquid from polluting the bottom of the liquid storage tank 110 .

Moreover, a sensor for detecting the liquid level of the cleaning liquid may be installed in the liquid storage tank 110 to detect whether the cleaning liquid in the liquid storage tank 110 meets the usage requirements.

Other configurations and operations of the dispensing needle cleaning device 1 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

In the description of this specification, descriptions with reference to the terms "specific embodiment", "specific example" and the like mean that specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or embodiment of the present invention. example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the invention is defined by the claims and their equivalents.

Claims (14)

1. A dispensing needle cleaning device, comprising:

the cleaning liquid supply mechanism is provided with a liquid outlet;

the cleaning mechanism comprises a main body, a liquid storage tank and a cleaning pipe, wherein the liquid storage tank is arranged in the main body and is provided with a liquid storage cavity and an opening communicated with the liquid storage cavity, the cleaning pipe is positioned in the liquid storage cavity and is provided with a cleaning cavity, a cleaning opening and a liquid inlet which are communicated, the cleaning pipe comprises a main body section and a guide section, the main body section extends along the vertical direction and is defined with the liquid inlet, the liquid inlet penetrates through the bottom wall of the liquid storage cavity, the guide section is connected with the upper end of the main body section and is defined with the cleaning opening, the cleaning opening is exposed from the opening, the outer contour of the cross section of the guide section gradually decreases towards the direction away from the main body section, the cleaning cavity penetrates through the main body section and the guide section, the peripheral wall of the cleaning pipe is provided with a notch, and the notch penetrates through the upper end face of the cleaning pipe.

The two ends of the first infusion tube are respectively connected with the liquid outlet and the liquid inlet;

the first liquid level detector is arranged on the cleaning mechanism and is used for detecting the liquid level of the cleaning liquid in the cleaning cavity;

the flow control valve is arranged on the first infusion tube and connected with the first liquid level detector, and controls the flow of cleaning liquid in the first infusion tube according to the signal of the first liquid level detector;

the wiping component is switchably arranged on the cleaning mechanism between a clamping state and a loosening state, the wiping component is provided with a wiping gap and is arranged at intervals with the liquid storage tank, the wiping gap is closed when the wiping component is in the clamping state, and the wiping gap is opened when the wiping component is in the loosening state.

2. The dispensing needle cleaning device of claim 1, further comprising:

and the one-way valve is connected with the first infusion tube.

3. The dispensing needle cleaning device of claim 1, wherein the opening has an inner diameter greater than an outer diameter of the cleaning tube, and an upper surface of the liquid storage tank is not lower than an upper end surface of the cleaning tube.

4. The dispensing needle cleaning device of claim 1, wherein the reservoir further comprises:

the liquid outlet is arranged on the bottom wall of the liquid storage tank and is communicated with the liquid storage cavity, and the liquid outlet is communicated with the backflow port of the cleaning liquid supply mechanism through a second infusion tube.

5. The dispensing needle cleaning device of claim 4, wherein the cross-sectional area of the drain port decreases progressively away from the reservoir.

6. The dispensing needle cleaning device of claim 1, wherein the cleaning mechanism further comprises:

the second liquid level detector is arranged in the liquid storage tank and is used for detecting the liquid level of the cleaning liquid in the liquid storage cavity.

7. The dispensing needle cleaning device of claim 1, wherein the outer peripheral surface of the deflector section is inclined gradually from bottom to top toward the central axis of the cleaning tube.

8. The dispensing needle cleaning device of claim 1, wherein the cleaning mechanism further comprises:

and the cover sealing device is switchably connected with the main body between a cover sealing state and an open state, is connected with the liquid storage tank and seals the opening when in the cover sealing state, and is spaced from the liquid storage tank and is open when in the open state.

9. The dispensing needle cleaning device of claim 8, wherein the capping device comprises:

the first driving piece is connected with the main body;

the lower end of the lifting rod is connected with the first driving piece, and the first driving piece drives the lifting rod to rotate and lift along the axis of the lifting rod;

the lifting rod is used for driving the first cover plate to rotate and lift.

10. The dispensing needle cleaning device of claim 1, further comprising:

a first leakage prevention box mounted with the main body and located below the liquid storage tank;

and the third liquid level detector is arranged in the first leakage-proof box and is used for detecting the liquid level of the cleaning liquid in the first leakage-proof box.

11. The dispensing needle cleaning device of claim 1, wherein the wiper assembly comprises:

a second driving member;

the first cleaning block and the second cleaning block are respectively connected with the second driving piece and define the wiping gap, and the second driving piece drives at least one of the first cleaning block and the second cleaning block to move so as to switch the wiping component to the clamping state or the loosening state.

12. The dispensing needle cleaning device of claim 11, wherein each of the first cleaning block and the second cleaning block comprises:

the lower end of the vertical part is connected with the second driving piece;

and one end of the horizontal part is connected with the upper end of the vertical part and extends from the vertical part to a direction close to the cleaning cavity.

13. The dispensing needle cleaning device of claim 12, wherein an upper surface of the horizontal portion is flush with an upper end of the cleaning chamber.

14. The dispensing needle cleaning device of claim 1, wherein the cleaning liquid supply mechanism comprises:

the liquid storage tank is provided with the liquid outlet;

the pump body is connected with the liquid outlet and the first infusion tube and is used for pumping the cleaning liquid of the liquid storage tank into the first infusion tube;

the second leakage-proof box is arranged below the liquid storage tank;

and the fourth liquid level detector is arranged in the second leakage-proof box and is used for detecting the liquid level of the cleaning liquid in the second leakage-proof box.

Images