Dispensing needle cleaning device and dispensing needle cleaning method

Abstract

This invention discloses a dispensing needle cleaning device and a dispensing method, comprising: a base, on which a support plate is disposed; and cleaning modules, including a first cleaning module and a second cleaning module, which are symmetrically arranged on the support plate; wherein, the outer side walls of the first and second cleaning modules opposite to each other are provided with grooves, the grooves including at least three surfaces, and the outer side walls of the second and first cleaning modules opposite to each other are provided with protrusions adapted to the grooves. This invention also discloses a dispensing method. Using this invention, the dispensing effect is excellent.

Description

Technical Field

[0001] This invention relates to the field of dispensing needle cleaning devices, and in particular to a dispensing needle cleaning device and a method for cleaning dispensing needles. Background Technology

[0002] Existing dispensing machines are prone to adhesive sticking during use, which can clog the needle and affect dispensing efficiency. Current dispensing needle cleaning devices generally use adhesive tape to bond with the dispensing needle, but when the adhesive is highly viscous, the bonding effect is not ideal and cannot effectively clean the adhesive from the needle. In addition, the tape cannot fully contact the outer wall of the needle, resulting in an unsatisfactory bonding effect. Summary of the Invention

[0003] The technical problem to be solved by the embodiments of the present invention is to provide a dispensing needle cleaning device and a glue wiping method, which can improve the glue wiping effect.

[0004] To address the aforementioned technical problems, a first aspect of the present invention provides a dispensing needle cleaning device, the dispensing needle cleaning device comprising:

[0005] A base, on which a support plate is provided;

[0006] The cleaning module includes a first cleaning module and a second cleaning module, which are symmetrically arranged on the support plate; wherein,

[0007] The outer wall of the first cleaning module opposite to the second cleaning module is provided with a groove, the groove including at least three surfaces, and the outer wall of the second cleaning module opposite to the first cleaning module is provided with a protrusion adapted to the groove.

[0008] In one feasible implementation, the dispensing needle cleaning device further includes a first buffer layer and a second buffer layer;

[0009] The first buffer layer is disposed on the outer side wall opposite to the first cleaning module and the second cleaning module, and the groove is disposed on the first buffer layer, the groove including a first plane, a second plane and a third plane;

[0010] The second buffer layer is arranged on the outer wall of the second cleaning module opposite to the first cleaning module. The protrusion is arranged on the second buffer layer. The fourth plane of the protrusion is parallel to the first plane, the fifth plane of the protrusion is parallel to the second plane, and the sixth plane of the protrusion is parallel to the third plane.

[0011] In one feasible implementation, the first buffer layer is made of rubber foam and / or silicone foam;

[0012] The second buffer layer is made of rubber foam and / or silicone foam.

[0013] In one feasible implementation, the cleaning device further includes a first unwinding module, a second unwinding module, a first rewinding module, and a second rewinding module; the first unwinding module, the second unwinding module, the first rewinding module, and the second rewinding module are fixed on the support plate;

[0014] One end of the first unwinding module is driven by a motor, acts on the first buffer layer, and then winds around the first take-up module; one end of the second unwinding module is driven by a motor, acts on the second buffer layer, and then winds around the second take-up module.

[0015] In one feasible implementation, cleaning strips are respectively provided on the outer side walls of the first cleaning module and the second cleaning module;

[0016] A first tensioning wheel for tensioning the cleaning belt is provided between the first unwinding module and the first buffer layer, and a second tensioning wheel for tensioning the cleaning belt is provided between the first rewinding module and the first buffer layer;

[0017] A third tensioning wheel for tensioning the cleaning belt is provided between the second unwinding module and the second buffer layer, and a fourth tensioning wheel for tensioning the cleaning belt is provided between the second rewinding module and the second buffer layer.

[0018] The first tensioning wheel, the second tensioning wheel, the third tensioning wheel, and the fourth tensioning wheel are disposed on the support plate, and at least one of them is provided.

[0019] In one feasible implementation, the cleaning device further includes a first detection module and a second detection module;

[0020] The first detection module is arranged at one end of the first unwinding module to detect whether the cleaning tape is missing in the first unwinding module;

[0021] The second detection module is located at one end of the second unwinding module and is used to detect whether the cleaning tape is missing in the second unwinding module.

[0022] In one feasible implementation, the base includes a base plate, a bracket, and two support seats; the support seats are arranged parallel to the base plate.

[0023] The top of the bracket is fixedly connected to the support plate, and the bottom of the bracket is arranged between the support seats and rotatably connected to the support seats to adjust the angle of the support plate.

[0024] In one feasible implementation, the cleaning device further includes at least one waste glue bucket and a claw for fixing the waste glue bucket, one end of the claw being fixed to a pressure sensor to detect pressure changes inside the waste glue bucket;

[0025] The cleaning device also includes a sensor, which is arranged at the same level as the opening of the waste glue bucket to detect whether glue has overflowed from the waste glue bucket.

[0026] In one feasible implementation, the cleaning device further includes a drive module, a chute, a first slider, and a second slider;

[0027] The first slider is driven by the drive module to slide within the chute, thereby causing the first cleaning module to move horizontally; the second slider is driven by the drive module to slide within the chute, thereby causing the second cleaning module to move horizontally.

[0028] Accordingly, a second aspect of the present invention also provides a method for removing adhesive, utilizing the adhesive needle cleaning device described in the first aspect, comprising:

[0029] Rotate the adjustment support to make the dispensing needle perpendicular to the top of the first cleaning module and the top of the second cleaning module;

[0030] The dispensing needle moves along the X, Y, and Z axes, falling sequentially to the gaps corresponding to the surfaces of the grooves and protrusions. The grooves and protrusions squeeze the dispensing needle, wiping away the glue adhering to the outer wall of the dispensing needle.

[0031] Implementing this invention has the following beneficial effects:

[0032] This invention discloses a dispensing needle cleaning device and a dispensing method. The groove on the first cleaning module is adapted to the protrusion on the second cleaning module, and the corresponding surfaces on the groove and the protrusion are tangentially pressed against the outer wall of the dispensing needle. The groove includes at least three surfaces, that is, it can be tangentially pressed against the outer wall of the dispensing needle at least three times, which further improves the dispensing effect.

[0033] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0034] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application, and do not constitute an undue limitation of this application.

[0035] Figure 1 This is a schematic diagram of the dispensing needle cleaning device in an embodiment of the present invention;

[0036] Figure 2This is a schematic diagram of the base structure in an embodiment of the present invention;

[0037] Figure 3 This is a partial structural diagram of the cleaning module in an embodiment of the present invention;

[0038] Figure 4 This is a schematic diagram of the cleaning module in an embodiment of the present invention;

[0039] Figure 5 This is a partial structural diagram of the cleaning module in an embodiment of the present invention;

[0040] Figure 6 This is a schematic diagram of the waste glue bucket in an embodiment of the present invention.

[0041] The reference numerals in the figure:

[0042] 1-Base; 11-Support plate; 12-Bottom plate; 13-Bracket; 14-Support seat;

[0043] 2-Cleaning module; 21-First cleaning module; 211-First buffer layer; 2111-First plane; 2112-Second plane; 2113-Third plane; 22-Second cleaning module; 221-Second buffer layer; 2211-Fourth plane; 2212-Fifth plane; 2213-Sixth plane; 23-Cleaning belt; 24-Drive module; 25-Slide groove; 26-Second slider;

[0044] 31-First unwinding module; 32-Second unwinding module; 33-First take-up module; 34-Second take-up module; 35-First tension roller; 36-Second tension roller; 37-Third tension roller; 38-Fourth tension roller;

[0045] 41-First detection module; 42-Second detection module;

[0046] 51-Waste glue bucket; 52-Claw; 53-Pressure sensor; 54-Sensor. Detailed Implementation

[0047] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0048] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0050] Reference Figure 1-6 As shown, this embodiment discloses a dispensing needle cleaning device. Compared with the prior art, when the two cleaning modules 2 directly squeeze the dispensing needle or the roller rotates and rubs the dispensing needle, it is impossible to squeeze and rub around the outer wall of the dispensing needle to wipe the glue on the outer wall. Moreover, when encountering highly viscous glue, there is a situation where the glue is not wiped thoroughly. In this embodiment, the groove and the protrusion are adapted to each other. The groove includes at least three surfaces. Therefore, there are at least three sets of surfaces that are correspondingly set between them. The glue wiping function is achieved by tangentially squeezing and rubbing the three sets of surfaces with the outer wall of the dispensing needle. It has the advantage of good cleaning effect.

[0051] Specifically:

[0052] Base 1, see reference Figure 2 As shown, a support plate 11 is provided on the base 1 to fix the cleaning module 2; in addition, the base 1 includes a bottom plate 12, a bracket 13 and two support seats 14; the support seats 14 are arranged parallel to the bottom plate 12, the top of the bracket 13 is fixedly connected to the support plate 11, and the bottom of the bracket 13 is arranged between the support seats 14 and rotatably connected to the support seats 14 to adjust the angle of the support plate 11, thereby ensuring that the dispensing needle is perpendicular to the support plate 11, so that the dispensing needle is parallel to the cleaning belt 23 when it falls, and avoids squeezing and breaking the dispensing needle when there is an angle between the dispensing needle and the cleaning belt 23.

[0053] The cleaning module 2 includes a first cleaning module 21 and a second cleaning module 22, which are symmetrically arranged on the support plate 11. The outer walls of the first and second cleaning modules 21 opposite to each other have grooves, each groove having at least three surfaces. The outer walls of the second cleaning module 22 opposite to the first cleaning module 21 have protrusions that fit into the grooves. The term "at least three surfaces" can refer to two, four, or five surfaces, etc., and the surfaces can be curved or flat; no limitation is made here. Increasing the number of surfaces increases the number of times the surfaces are tangent to the outer wall of the dispensing needle, thereby increasing the number of times adhesive is applied and improving the adhesive application effect.

[0054] Furthermore, referring to Figure 5 As shown, the dispensing needle cleaning device also includes a first buffer layer 211 and a second buffer layer 221. Correspondingly, the first buffer layer 211 is arranged on the outer sidewalls of the first cleaning module 21 and the second cleaning module 22 opposite to each other, and a groove is provided in the first buffer layer 211, the groove including a first plane 2111, a second plane 2112 and a third plane 2113; the second buffer layer 221 is arranged on the outer sidewalls of the second cleaning module 22 and the first cleaning module 21 opposite to each other, and a protrusion is provided in the second buffer layer 221, the fourth plane 2211 of the protrusion being flush with the first plane 2112. The fifth plane 2212 of the protrusion is parallel to the second plane 2112, and the sixth plane 2213 of the protrusion is parallel to the third plane 2113. Because the object that squeezes the dispensing needle has low hardness, it needs to provide support force when squeezing. Therefore, by setting the groove on the first buffer layer 211 and the protrusion on the second buffer layer 221, when the two squeeze the dispensing needle, the first cleaning module 21 and the second cleaning module 22 fixed by the two can provide support force, thereby improving the squeezing effect of the first buffer layer 211 and the second buffer layer 221.

[0055] Alternatively, another feasible solution is to use rubber foam for the first buffer layer 211 and silicone foam for the second buffer layer 221. The advantage of this design is that rubber foam is relatively harder than silicone foam. This combination of soft and hard materials prevents either material from being too hard and damaging the dispensing needle, or too soft and failing to adhere properly. Of course, the materials mentioned here are just one possible approach, and other options are available and can be adjusted according to specific needs.

[0056] In one feasible manner, refer to Figure 4As shown, the dispensing needle cleaning device also includes a first unwinding module 31, a second unwinding module 32, a first take-up module 33, and a second take-up module 34; the first unwinding module 31, the second unwinding module 32, the first take-up module 33, and the second take-up module 34 are fixed on the support plate 11; one end of the first unwinding module 31 is driven by a motor, acts on the first buffer layer 211, and then winds around the first take-up module 33; one end of the second unwinding module 32 is driven by a motor, acts on the second buffer layer 221, and then winds around the second take-up module 34.

[0057] Furthermore, referring to Figure 4-5 As shown, a first tensioning wheel 35 for tensioning the cleaning belt 23 is provided between the first unwinding module 31 and the first buffer layer 211; a second tensioning wheel 35 for tensioning the cleaning belt 23 is provided between the first rewinding module 33 and the first buffer layer 211; a third tensioning wheel 37 for tensioning the cleaning belt 23 is provided between the second unwinding module 32 and the second buffer layer 221; and a fourth tensioning wheel 37 for tensioning the cleaning belt 23 is provided between the second rewinding module 34 and the second buffer layer 221. Each of the first, second, third, and fourth tensioning wheels 35 is provided on the support plate 11. Alternatively, two, three, or more of these wheels can be provided. The design of the tensioning wheels ensures that the cleaning belt 23 remains taut, preventing slackness during rotation and ensuring effective cleaning.

[0058] In addition, refer to Figure 5 As shown, the dispensing needle cleaning device also includes a first detection module 41 and a second detection module 42. The first detection module 41 is arranged at one end of the first unwinding module 31 to detect whether the cleaning tape 23 is missing in the first unwinding module 31. The second detection module 42 is arranged at one end of the second unwinding module 32 to detect whether the cleaning tape 23 is missing in the second unwinding module 32. The first detection module 41 and the second detection module 42 mentioned here can be laser detectors. By emitting laser dots to the cleaning tape 23, when the cleaning tape 23 is missing, the laser sensor 54 cannot detect the cleaning tape 23, thereby triggering an alarm and requiring manual replacement of the cleaning tape 23. Of course, this is only one possible method, including but not limited to laser detectors, and no specific limitation is made here.

[0059] In one feasible manner, refer to Figure 6As shown, the dispensing needle cleaning device also includes two waste glue bins 51 and claws 52 for fixing the waste glue bins 51. One end of the claw 52 is fixed to a pressure sensor 53 to detect pressure changes inside the waste glue bins 51. Of course, one, three, or more waste glue bins 51 can be provided, and the layout can be adjusted according to the space available in the cleaning device. In addition, the dispensing needle cleaning device also includes a sensor 54, which is arranged flush with the opening of the waste glue bins 51 to detect whether glue has overflowed from the waste glue bins 51.

[0060] In one feasible manner, refer to Figure 3 As shown, the dispensing needle cleaning device also includes a drive module 24, a slide 25, a first slider (not shown in the figure), and a second slider 26. The first slider is driven by the drive module 24 to slide in the slide 25, and drives the first cleaning module 21 to move horizontally. The second slider 26 is driven by the drive module 24 to slide in the slide 25, and drives the second cleaning module 22 to move horizontally, thereby causing the first buffer layer 211 and the second buffer layer 221 to squeeze the dispensing needle against each other, and the adhesive on the dispensing needle is bonded by the cleaning belt 23.

[0061] In one feasible embodiment, this embodiment also includes an adhesive removal method utilizing the aforementioned adhesive dispensing needle cleaning device, wherein the adhesive removal method includes:

[0062] Step 1: Rotate the bracket 13 between the two support seats 14 to make the dispensing needle perpendicular to the top of the first cleaning module 21 and the top of the second cleaning module 22. This allows the dispensing needle to move to the corresponding gaps between the grooves and protrusions, keeping the dispensing needle parallel to the surfaces of the grooves and protrusions, thus preventing the dispensing needle from bending when clamped in opposite directions.

[0063] Step 2: The dispensing needle moves along the X, Y, and Z axes and falls to the gap between the first plane 2111 of the first cleaning module 21 and the fourth plane 2211 of the second cleaning module 22; then, the first slider and the second slider 26 move towards each other in the groove 25, causing the first cleaning module 21 and the second cleaning module 22 to squeeze the dispensing needle towards each other, and the adhesive is bonded by the cleaning belt 23;

[0064] Step 3: As the first slider and the second slider 26 move in opposite directions within the groove 25, the dispensing needle moves again along the X, Y, and Z axes and falls to the gap between the second plane 2112 of the first cleaning module 21 and the fifth plane 2212 of the second cleaning module 22. At the same time, the cleaning belt 23 rolls, replacing the outer walls of the first buffer layer 211 and the second buffer layer 221 with a new cleaning belt 23. Then, as the first slider and the second slider 26 move towards each other within the groove 25, the first cleaning module 21 and the second cleaning module 22 squeeze the dispensing needle towards each other, and the adhesive is bonded by the cleaning belt 23.

[0065] Step 4: As the first slider and the second slider 26 move in opposite directions within the groove 25, the dispensing needle moves again along the X, Y, and Z axes and falls to the gap between the third plane 2113 of the first cleaning module 21 and the sixth plane 2213 of the second cleaning module 22. At the same time, the cleaning belt 23 rolls, replacing the outer walls of the first buffer layer 211 and the second buffer layer 221 with a new cleaning belt 23. Then, as the first slider and the second slider 26 move towards each other within the groove 25, the first cleaning module 21 and the second cleaning module 22 squeeze the dispensing needle towards each other, and the adhesive is bonded through the cleaning belt 23.

[0066] Step 5: After performing Step 1-4 at least three times, transfer the dispensing needle to the dispensing bucket to dispense adhesive. Verify the dispensing volume of the dispensing needle is normal using pressure sensor 53. If normal, continue the dispensing operation; if not, repeat Step 1-4. After cleaning, repeat Step 1-4 again to clean the dispensing needle.

[0067] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A dispensing needle cleaning device, characterized in that, The dispensing needle cleaning device includes: A base (1) is provided with a support plate (11); The cleaning module (2) includes a first cleaning module (21) and a second cleaning module (22), which are symmetrically arranged on the support plate (11); wherein, The first cleaning module (21) and the second cleaning module (22) have grooves on their outer side walls opposite to each other. The grooves include at least three surfaces. The second cleaning module (22) and the first cleaning module (21) have protrusions that are adapted to the grooves on their outer side walls opposite to each other. The cleaning device also includes a first buffer layer (211) and a second buffer layer (221); The first buffer layer (211) is arranged on the outer side wall of the first cleaning module (21) and the second cleaning module (22) opposite to each other. The groove is provided on the first buffer layer (211) and the groove includes a first plane (2111), a second plane (2112) and a third plane (2113). The second buffer layer (221) is arranged on the outer side wall of the second cleaning module (22) opposite to the first cleaning module (21). The protrusion is arranged on the second buffer layer (221). The protrusion includes a fourth plane (2211), a fifth plane (2212) and a sixth plane (2213), wherein the fourth plane (2211) is parallel to the first plane (2111), the fifth plane (2212) of the protrusion is parallel to the second plane (2112), and the sixth plane (2213) of the protrusion is parallel to the third plane (2113).

2. The dispensing needle cleaning device according to claim 1, characterized in that, The first buffer layer (211) is made of rubber foam and / or silicone foam; The second buffer layer (221) is made of rubber foam and / or silicone foam.

3. The dispensing needle cleaning device according to claim 1, characterized in that, The cleaning device further includes a first unwinding module (31), a second unwinding module (32), a first rewinding module (33), and a second rewinding module (34); the first unwinding module (31), the second unwinding module (32), the first rewinding module (33), and the second rewinding module (34) are fixed on the support plate (11); One end of the first unwinding module (31) is driven by a motor, acts on the first buffer layer (211), and then winds around the first take-up module (33); one end of the second unwinding module (32) is driven by a motor, acts on the second buffer layer (221), and then winds around the second take-up module (34).

4. The dispensing needle cleaning device according to claim 3, characterized in that, Cleaning strips (23) are respectively provided on the outer side walls of the first cleaning module (21) and the second cleaning module (22); A first tensioning wheel (35) for tensioning the cleaning belt (23) is provided between the first unwinding module (31) and the first buffer layer (211), and a second tensioning wheel (36) for tensioning the cleaning belt (23) is provided between the first recycling module (33) and the first buffer layer (211). A third tensioning wheel (37) for tensioning the cleaning belt (23) is provided between the second unwinding module (32) and the second buffer layer (221), and a fourth tensioning wheel (38) for tensioning the cleaning belt (23) is provided between the second recycling module (34) and the second buffer layer (221). The first tensioning wheel (35), the second tensioning wheel (36), the third tensioning wheel (37) and the fourth tensioning wheel (38) are disposed on the support plate (11) and there is at least one of them.

5. The dispensing needle cleaning device according to claim 4, characterized in that, The cleaning device also includes a first detection module (41) and a second detection module (42); The first detection module (41) is arranged at one end of the first unwinding module (31) to detect whether the cleaning tape (23) is missing in the first unwinding module (31). The second detection module (42) is arranged at one end of the second unwinding module (32) to detect whether the cleaning tape (23) is missing in the second unwinding module (32).

6. The dispensing needle cleaning device according to claim 1, characterized in that, The base (1) includes a base plate (12), a bracket (13) and two support seats (14); the support seats (14) are arranged parallel to the base plate (12); The top of the bracket (13) is fixedly connected to the support plate (11), and the bottom of the bracket (13) is arranged between the support bases (14) and rotatably connected to the support bases (14) to adjust the angle of the support plate (11).

7. The dispensing needle cleaning device according to claim 1, characterized in that, The cleaning device also includes at least one waste glue bucket (51) and a claw (52) for fixing the waste glue bucket (51). One end of the claw (52) is fixed to a pressure sensor (53) to detect pressure changes inside the waste glue bucket (51). The cleaning device also includes a sensor (54) which is arranged at the same level as the opening of the waste glue bucket (51) to detect whether the glue in the waste glue bucket (51) has overflowed.

8. The dispensing needle cleaning device according to claim 1, characterized in that, The cleaning device also includes a drive module (24), a slide (25), a first slider and a second slider (26); The first slider is driven by the drive module (24) to slide in the groove (25) and drive the first cleaning module (21) to move horizontally; the second slider (26) is driven by the drive module (24) to slide in the groove (25) and drive the second cleaning module (22) to move horizontally.

9. A method of wiping, characterized in that Using the dispensing needle cleaning device according to any one of claims 1-8, the adhesive removal method includes the following steps: Rotate the adjustment support plate (11) so that the dispensing needle is perpendicular to the top of the first cleaning module (21) and the top of the second cleaning module (22) on the support plate (11); The dispensing needle moves along the X, Y, and Z axes, falling sequentially to the gaps corresponding to the surfaces of the grooves and protrusions. The grooves and protrusions squeeze the dispensing needle, wiping away the glue adhering to the outer wall of the dispensing needle.

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